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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.230 by root, Mon Apr 2 18:04:46 2007 UTC vs.
Revision 1.511 by root, Wed Apr 7 18:35:56 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.52 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
21		54
		55	use JSON::XS 2.01 ();
22	use BDB ();	56	use BDB ();
23	use Data::Dumper;	57	use Data::Dumper;
24	use Digest::MD5;
25	use Fcntl;	58	use Fcntl;
26	use YAML::Syck ();	59	use YAML::XS ();
27	use IO::AIO 2.32 ();	60	use IO::AIO ();
28	use Time::HiRes;	61	use Time::HiRes;
29	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
30		66
31	# configure various modules to our taste	67	# configure various modules to our taste
32	#	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		77
36	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
37		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
39	$YAML::Syck::ImplicitUnicode = 1;
40
41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42		80
43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
44		82
45	our %COMMAND = ();	83	our %COMMAND = ();
46	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
47		85
48	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
52		91
53	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
54	our @EVENT;	93	our @EVENT;
55	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
56		96
57	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
58	our $TICK_WATCHER;	98	our $DATADIR = datadir;
59	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	115	our $NEXT_TICK;
62	our $NOW;
63	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
64		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
65	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
66	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
67		124
68	our %CFG;	125	our %CFG;
69		126
70	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
71	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
72		130
73	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
74	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		134
82	# 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 ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		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 $REALLY_UNLOOP; # never set to true, please :)
		147
85	binmode STDOUT;	148	binmode STDOUT;
86	binmode STDERR;	149	binmode STDERR;
87		150
88	# read virtual server time, if available	151	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
90	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
91	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
92	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
93	}	156	}
94		157
95	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
96	mkdir cf::localdir . "/" . cf::playerdir;	159
97	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
98	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		162
102	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
103		164
104	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::"} };
105		177
106	#############################################################################	178	#############################################################################
107		179
108	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
109		181
…		…
116	=item $cf::RUNTIME	188	=item $cf::RUNTIME
117		189
118	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
119	every server tick.	191	every server tick.
120		192
121	=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
122		196
123	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
124	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.
125		201
126	=item $cf::NOW	202	=item $cf::NOW
127		203
128	The time of the last (current) server tick.	204	The time of the last (current) server tick.
129		205
130	=item $cf::TICK	206	=item $cf::TICK
131		207
132	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
133		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
134	=item %cf::CFG	220	=item %cf::CFG
135		221
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
137	from wherever your confdir points to.	223	from wherever your confdir points to.
138		224
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		226
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
143	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
144	window of cpu time available, or simply to synchronise to the server tick.	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.
145		242
146	=back	243	=back
147		244
148	=cut	245	=cut
149		246
150	BEGIN {	247	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	248	my $msg = join "", @_;
153	utf8::encode $msg;
154		249
155	$msg .= "\n"	250	$msg .= "\n"
156	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
157		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
158	LOG llevError, $msg;	255	LOG llevError, $msg;
159	};	256	};
160	}	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	};
161		271
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@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';
167	@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)
168		279
169	# 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
170	# within the Safe compartment.	281	# within the Safe compartment.
171	for my $pkg (qw(	282	for my $pkg (qw(
172	cf::global cf::attachable	283	cf::global cf::attachable
173	cf::object cf::object::player	284	cf::object cf::object::player
174	cf::client cf::player	285	cf::client cf::player
175	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
176	cf::map cf::party cf::region	288	cf::party cf::region
177	)) {	289	)) {
178	no strict 'refs';
179	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
180	}	291	}
181		292
182	$Event::DIED = sub {	293	$EV::DIED = sub {
183	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
184	};	295	};
		296
		297	#############################################################################
185		298
186	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
187		300
188	=over 4	301	=over 4
189		302
…		…
208	$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;
209	$d	322	$d
210	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
211	}	324	}
212		325
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
214
215	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
216		327
217	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
218		329
219	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
220		331
221	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
222		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
223	=item cf::lock_wait $string	355	=item cf::lock_wait $string
224		356
225	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
226		358
227	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
228		360
229	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
230	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,
231	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
232	returned.	364	returned.
233		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
234	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
235	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
236		371
237	=cut	372	=item $locked = cf::lock_active $string
238		373
239	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
240		379
241	sub lock_wait($) {	380	sub lock_wait($) {
242	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
243
244	# wait for lock, if any
245	while ($LOCK{$key}) {
246	push @{ $LOCK{$key} }, $Coro::current;
247	Coro::schedule;
248	}
249	}	382	}
250		383
251	sub lock_acquire($) {	384	sub lock_acquire($) {
252	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
253		387
254	# wait, to be sure we are not locked	388	sub lock_active($) {
255	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
256
257	$LOCK{$key} = [];
258
259	Coro::guard {
260	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };
262	}
263	}	390	}
264		391
265	sub freeze_mainloop {	392	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
267		394
268	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
269	$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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
270	};	462	}
271	$TICK_WATCHER->stop;	463	};
272	$guard	464
		465	sub get_slot($;$$) {
		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	$sig->wait;
273	}	478	}
274		479
275	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
276		481
277	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		487
283	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
284		489
285	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
286		491
287	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
290		496
291	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
294	fast or be very important.	500	fast or be very important.
…		…
297		503
298	sub sync_job(&) {	504	sub sync_job(&) {
299	my ($job) = @_;	505	my ($job) = @_;
300		506
301	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
302	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
304		512
305	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	514
307	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
308		516
309	my $busy = 1;	517	my $busy = 1;
310	my @res;	518	my @res;
311		519
312	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	522	@res = eval { $job->() };
314	warn $@ if $@;	523	warn $@ if $@;
315	undef $busy;	524	undef $busy;
316	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
317		526
318	while ($busy) {	527	while ($busy) {
319	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
320	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
321		538
322	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
323	} else {	540	} else {
324	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
325		542
…		…
345	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
346		563
347	$coro	564	$coro
348	}	565	}
349		566
350	sub write_runtime {	567	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		568
353	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.
354		573
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	574	=cut
356	or return;
357		575
358	my $value = $cf::RUNTIME + 90 + 10;	576	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	577	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		578
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	579	# we seemingly have to make a local copy of the whole thing,
363	and return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
364		582
365	# always fsync - this file is important	583	my @res = Coro::Util::fork_eval {
366	aio_fsync $fh	584	reset_signals;
367	and return;	585	&$cb
		586	}, @args;
368		587
369	close $fh	588	wantarray ? @res : $res[-1]
370	or return;	589	}
371		590
372	aio_rename "$runtime~", $runtime	591	=item $coin = coin_from_name $name
373	and return;
374		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		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($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
375	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		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"
376	}	743	}
377		744
378	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
379		746
380	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.
…		…
392		759
393	#############################################################################	760	#############################################################################
394		761
395	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
396		763
397	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
398	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")
399	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
400		767
401	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>
402	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
403	crossfire+).	770	Deliantra).
404		771
405	=over 4	772	=over 4
406		773
407	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
408		775
…		…
452	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
453		820
454	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
456		823
457	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
459		826
460	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
461		828
462	=over 4	829	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
572		939
573	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		944
578	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	946	my $pkg = shift @arg;
580		947
581	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
611	}	978	}
612		979
613	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
614	} else {	981	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	983	}
617		984
618	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
619	}	986	}
620		987
…		…
622	if (ref $_[0]) {	989	if (ref $_[0]) {
623	_object_attach @_;	990	_object_attach @_;
624	} else {	991	} else {
625	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
626	}	993	}
		994	_recalc_want;
627	};	995	};
628		996
629	# all those should be optimised	997	# all those should be optimised
630	sub cf::attachable::detach {	998	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
635	reattach ($obj);	1003	reattach ($obj);
636	} else {	1004	} else {
637	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
638	}	1006	}
		1007	_recalc_want;
639	};	1008	};
640		1009
641	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
643		1012
…		…
658	";	1027	";
659	die if $@;	1028	die if $@;
660	}	1029	}
661		1030
662	our $override;	1031	our $override;
663	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?
664		1033
665	sub override {	1034	sub override {
666	$override = 1;	1035	$override = 1;
667	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
668	}	1037	}
669		1038
670	sub do_invoke {	1039	sub do_invoke {
671	my $event = shift;	1040	my $event = shift;
672	my $callbacks = shift;	1041	my $callbacks = shift;
673		1042
674	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
675		1044
676	local $override;	1045	local $override;
677		1046
678	for (@$callbacks) {	1047	for (@$callbacks) {
679	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
688	}	1057	}
689		1058
690	0	1059	0
691	}	1060	}
692		1061
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1063
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1065
697	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
698		1067
699	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
700	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
701	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1071
703	=back	1072	=back
704		1073
705	=cut	1074	=cut
706		1075
707	#############################################################################	1076	#############################################################################
708	# 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, $ob2
		1119	}
709		1120
710	sub reattach {	1121	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1123	my ($obj) = @_;
713		1124
		1125	# no longer needed after getting rid of delete_package?
714	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
715		1127
716	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
717		1129
718	@$registry = ();	1130	@$registry = ();
719		1131
…		…
734	cf::attachable->attach (	1146	cf::attachable->attach (
735	prio => -1000000,	1147	prio => -1000000,
736	on_instantiate => sub {	1148	on_instantiate => sub {
737	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
738		1150
739	$data = from_json $data;	1151	$data = decode_json $data;
740		1152
741	for (@$data) {	1153	for (@$data) {
742	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
743		1155
744	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1172	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
762		1174
763	sync_job {	1175	sync_job {
764	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
767		1180
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	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	}
772	close $fh;	1188	aio_close $fh;
773		1189
774	if (@$objs) {	1190	if (@$objs) {
775	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) {
776	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
779	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	}
780	close $fh;	1199	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
782	}	1201	}
783	} else {	1202	} else {
784	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
785	}	1204	}
786		1205
787	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1210	} else {
789	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
790	}	1212	}
791	} else {	1213	} else {
792	aio_unlink $filename;	1214	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
794	}	1216	}
795	}	1217	};
796	}	1218	}
797		1219
798	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
800		1222
…		…
812	or return;	1234	or return;
813		1235
814	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
816	or return;	1238	or return;
		1239
817	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
818	}	1242	}
819		1243
		1244	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
822	return ($data, $av);	1248	($data, $av)
823	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
824		1256
825	#############################################################################	1257	#############################################################################
826	# command handling &c	1258	# command handling &c
827		1259
828	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1274	}
843		1275
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1277
846	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.
847		1283
848	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
849	called.	1285	called.
850		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
851	=cut	1298	=cut
852		1299
853	sub register_extcmd {	1300	sub register_extcmd {
854	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
855		1302
856	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
857	}	1304	}
858		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
		1313
859	cf::player->attach (	1314	cf::player->attach (
860	on_command => sub {	1315	on_unknown_command => sub {
861	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
862		1317
863	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
864	or return;	1319	or return;
865		1320
…		…
870	cf::override;	1325	cf::override;
871	},	1326	},
872	on_extcmd => sub {	1327	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
874		1329
875	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1331
877	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
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
883	} else {	1347	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1349	}
886		1350
887	cf::override;	1351	cf::override;
888	},	1352	},
889	);	1353	);
890		1354
		1355	# "readahead" all extensions
891	sub load_extension {	1356	sub cache_extensions {
892	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
893		1358
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1362	}
919	die $@;
920	}	1363	};
921		1364
922	push @EXTS, $pkg;	1365	$grp
923	}	1366	}
924		1367
925	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
926	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1373	next unless -r $path;
928	eval {	1374
929	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 $active;
		1434	}
930	1	1435	}
931	} or warn "$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	}
932	}	1446	};
933	}	1447	}
934		1448
935	#############################################################################	1449	#############################################################################
936		1450
		1451	=back
		1452
937	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
938		1454
939	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
940		1456
941	=cut	1457	=cut
942		1458
943	package cf::player;	1459	package cf::player;
944		1460
…		…
946		1462
947	=head3 cf::player	1463	=head3 cf::player
948		1464
949	=over 4	1465	=over 4
950		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
951	=item cf::player::find $login	1481	=item cf::player::find $login
952		1482
953	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
954		1484
955	=cut	1485	=cut
956		1486
957	sub playerdir($) {	1487	sub playerdir($) {
958	cf::localdir	1488	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1490	}
964		1491
965	sub path($) {	1492	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1494
968	(playerdir $login) . "/$login.pl"	1495	(playerdir $login) . "/playerdata"
969	}	1496	}
970		1497
971	sub find_active($) {	1498	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1499	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1500	and $cf::PLAYER{$_[0]}->active
…		…
976		1503
977	sub exists($) {	1504	sub exists($) {
978	my ($login) = @_;	1505	my ($login) = @_;
979		1506
980	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
982	}	1509	}
983		1510
984	sub find($) {	1511	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1513	my $login = $_[0];
987		1514
988	my $guard = cf::lock_acquire "user_find:$login";	1515	my $guard = cf::lock_acquire "user_find:$login";
989		1516
990	$cf::PLAYER{$_[0]} || do {	1517	$cf::PLAYER{$_[0]} || do {
991	my $pl = load_pl path $login	1518	# rename old playerfiles to new ones
		1519	#TODO: remove when no longer required
		1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1523	aio_unlink +(playerdir $login) . "/$login.pl";
		1524
		1525	my $f = new_from_file cf::object::thawer path $login
992	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;
993	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
994	}	1534	}
995	}	1535	}
996	}	1536	}
		1537
		1538	cf::player->attach (
		1539	on_load => sub {
		1540	my ($pl, $path) = @_;
		1541
		1542	# restore slots saved in save, below
		1543	my $slots = delete $pl->{_slots};
		1544
		1545	$pl->ob->current_weapon ($slots->[0]);
		1546	$pl->combat_ob ($slots->[1]);
		1547	$pl->ranged_ob ($slots->[2]);
		1548	},
		1549	);
997		1550
998	sub save($) {	1551	sub save($) {
999	my ($pl) = @_;	1552	my ($pl) = @_;
1000		1553
1001	return if $pl->{deny_save};	1554	return if $pl->{deny_save};
…		…
1006	return if $pl->{deny_save};	1559	return if $pl->{deny_save};
1007		1560
1008	aio_mkdir playerdir $pl, 0770;	1561	aio_mkdir playerdir $pl, 0770;
1009	$pl->{last_save} = $cf::RUNTIME;	1562	$pl->{last_save} = $cf::RUNTIME;
1010		1563
		1564	cf::get_slot 0.01;
		1565
		1566	# save slots, to be restored later
		1567	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1568
1011	$pl->save_pl ($path);	1569	$pl->save_pl ($path);
1012	Coro::cede;	1570	cf::cede_to_tick;
1013	}	1571	}
1014		1572
1015	sub new($) {	1573	sub new($) {
1016	my ($login) = @_;	1574	my ($login) = @_;
1017		1575
…		…
1023	$cf::PLAYER{$login} = $self;	1581	$cf::PLAYER{$login} = $self;
1024		1582
1025	$self	1583	$self
1026	}	1584	}
1027		1585
		1586	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1587
		1588	=cut
		1589
		1590	sub send_msg {
		1591	my $ns = shift->ns
		1592	or return;
		1593	$ns->send_msg (@_);
		1594	}
		1595
1028	=item $pl->quit_character	1596	=item $pl->quit_character
1029		1597
1030	Nukes the player without looking back. If logged in, the connection will	1598	Nukes the player without looking back. If logged in, the connection will
1031	be destroyed. May block for a long time.	1599	be destroyed. May block for a long time.
1032		1600
…		…
1036	my ($pl) = @_;	1604	my ($pl) = @_;
1037		1605
1038	my $name = $pl->ob->name;	1606	my $name = $pl->ob->name;
1039		1607
1040	$pl->{deny_save} = 1;	1608	$pl->{deny_save} = 1;
1041	$pl->password ("*"); # this should lock out the player until we nuked the dir	1609	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1042		1610
1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1044	$pl->deactivate;	1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1046	$pl->ns->destroy if $pl->ns;	1616	$pl->ns->destroy if $pl->ns;
1047		1617
1048	my $path = playerdir $pl;	1618	my $path = playerdir $pl;
1049	my $temp = "$path~$cf::RUNTIME~deleting~";	1619	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1079	while and may block, so not sync_job-capable, ever.	1649	while and may block, so not sync_job-capable, ever.
1080		1650
1081	=cut	1651	=cut
1082		1652
1083	sub list_logins {	1653	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1654	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1655	or return [];
1086		1656
1087	my @logins;	1657	my @logins;
1088		1658
1089	for my $login (@$dirs) {	1659	for my $login (@$dirs) {
		1660	my $path = path $login;
		1661
		1662	# a .pst is a dead give-away for a valid player
		1663	# if no pst file found, open and chekc for blocked users
		1664	if (aio_stat "$path.pst") {
1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1091	aio_read $fh, 0, 512, my $buf, 0 or next;	1666	aio_read $fh, 0, 512, my $buf, 0 or next;
1092	$buf !~ /^password -------------$/m or next; # official not-valid tag	1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
1093		1669
1094	utf8::decode $login;	1670	utf8::decode $login;
1095	push @logins, $login;	1671	push @logins, $login;
1096	}	1672	}
1097		1673
…		…
1124	}	1700	}
1125		1701
1126	\@paths	1702	\@paths
1127	}	1703	}
1128		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
1129	=item $player->ext_reply ($msgid, $msgtype, %msg)	1709	=item $player->ext_reply ($msgid, @msg)
1130		1710
1131	Sends an ext reply to the player.	1711	Sends an ext reply to the player.
1132		1712
1133	=cut	1713	=cut
1134		1714
1135	sub ext_reply($$$%) {	1715	sub ext_reply($$@) {
1136	my ($self, $id, %msg) = @_;	1716	my ($self, $id, @msg) = @_;
1137		1717
1138	$msg{msgid} = $id;	1718	$self->ns->ext_reply ($id, @msg)
1139
1140	$self->send ("ext " . cf::to_json \%msg);
1141	}	1719	}
1142		1720
1143	package cf;	1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		1728	my ($self, $type, @msg) = @_;
		1729
		1730	$self->ns->ext_msg ($type, @msg);
		1731	}
		1732
		1733	=head3 cf::region
		1734
		1735	=over 4
		1736
		1737	=cut
		1738
		1739	package cf::region;
		1740
		1741	=item cf::region::find_by_path $path
		1742
		1743	Tries to decuce the likely region for a map knowing only its path.
		1744
		1745	=cut
		1746
		1747	sub find_by_path($) {
		1748	my ($path) = @_;
		1749
		1750	my ($match, $specificity);
		1751
		1752	for my $region (list) {
		1753	if ($region->{match} && $path =~ $region->{match}) {
		1754	($match, $specificity) = ($region, $region->specificity)
		1755	if $region->specificity > $specificity;
		1756	}
		1757	}
		1758
		1759	$match
		1760	}
1144		1761
1145	=back	1762	=back
1146
1147		1763
1148	=head3 cf::map	1764	=head3 cf::map
1149		1765
1150	=over 4	1766	=over 4
1151		1767
…		…
1163	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1164	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1165		1781
1166	sub generate_random_map {	1782	sub generate_random_map {
1167	my ($self, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1786
1168	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1169	$self->_create_random_map (	1788	$self->_create_random_map (
1170	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1171	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1172	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1173	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1174	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1175	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1176	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1206	my ($self, $merge) = @_;	1825	my ($self, $merge) = @_;
1207		1826
1208	# we have to keep some variables in memory intact	1827	# we have to keep some variables in memory intact
1209	local $self->{path};	1828	local $self->{path};
1210	local $self->{load_path};	1829	local $self->{load_path};
1211	local $self->{deny_save};
1212	local $self->{deny_reset};
1213		1830
1214	$self->SUPER::thawer_merge ($merge);	1831	$self->SUPER::thawer_merge ($merge);
1215	}	1832	}
1216		1833
1217	sub normalise {	1834	sub normalise {
…		…
1264	$self->init; # pass $1 etc.	1881	$self->init; # pass $1 etc.
1265	return $self;	1882	return $self;
1266	}	1883	}
1267	}	1884	}
1268		1885
1269	Carp::carp "unable to resolve path '$path' (base '$base').";	1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
1270	()	1887	()
1271	}	1888	}
1272		1889
1273	sub init {	1890	sub init {
1274	my ($self) = @_;	1891	my ($self) = @_;
…		…
1289		1906
1290	# the original (read-only) location	1907	# the original (read-only) location
1291	sub load_path {	1908	sub load_path {
1292	my ($self) = @_;	1909	my ($self) = @_;
1293		1910
1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1911	"$MAPDIR/$self->{path}.map"
1295	}	1912	}
1296		1913
1297	# the temporary/swap location	1914	# the temporary/swap location
1298	sub save_path {	1915	sub save_path {
1299	my ($self) = @_;	1916	my ($self) = @_;
1300		1917
1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1919	"$TMPDIR/$path.map"
1303	}	1920	}
1304		1921
1305	# the unique path, undef == no special unique path	1922	# the unique path, undef == no special unique path
1306	sub uniq_path {	1923	sub uniq_path {
1307	my ($self) = @_;	1924	my ($self) = @_;
1308		1925
1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1927	"$UNIQUEDIR/$path"
1311	}	1928	}
1312		1929
1313	# and all this just because we cannot iterate over	1930	sub decay_objects {
1314	# all maps in C++...
1315	sub change_all_map_light {
1316	my ($change) = @_;	1931	my ($self) = @_;
1317		1932
1318	$_->change_map_light ($change)	1933	return if $self->{deny_reset};
1319	for grep $_->outdoor, values %cf::MAP;	1934
		1935	$self->do_decay_objects;
1320	}	1936	}
1321		1937
1322	sub unlink_save {	1938	sub unlink_save {
1323	my ($self) = @_;	1939	my ($self) = @_;
1324		1940
…		…
1329		1945
1330	sub load_header_from($) {	1946	sub load_header_from($) {
1331	my ($self, $path) = @_;	1947	my ($self, $path) = @_;
1332		1948
1333	utf8::encode $path;	1949	utf8::encode $path;
1334	#aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1335	# or return;
1336
1337	$self->_load_header ($path)
1338	or return;	1951	or return;
		1952
		1953	$self->_load_header ($f)
		1954	or return;
		1955
		1956	local $MAP_LOADING{$self->{path}} = $self;
		1957	$f->resolve_delayed_derefs;
1339		1958
1340	$self->{load_path} = $path;	1959	$self->{load_path} = $path;
1341		1960
1342	1	1961	1
1343	}	1962	}
…		…
1382	$self->load_header_orig	2001	$self->load_header_orig
1383	or return;	2002	or return;
1384	$self->prepare_orig;	2003	$self->prepare_orig;
1385	}	2004	}
1386		2005
		2006	$self->{deny_reset} = 1
		2007	if $self->no_reset;
		2008
		2009	$self->default_region (cf::region::find_by_path $self->{path})
		2010	unless $self->default_region;
		2011
1387	1	2012	1
1388	}	2013	}
1389		2014
1390	sub find;	2015	sub find;
1391	sub find {	2016	sub find {
1392	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1393		2018
1394	$path = normalise $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1395		2020
		2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1396	cf::lock_wait "map_find:$path";	2022	my $guard2 = cf::lock_acquire "map_find:$path";
1397		2023
1398	$cf::MAP{$path} || do {	2024	$cf::MAP{$path} || do {
1399	my $guard = cf::lock_acquire "map_find:$path";
1400	my $map = new_from_path cf::map $path	2025	my $map = new_from_path cf::map $path
1401	or return;	2026	or return;
1402		2027
1403	$map->{last_save} = $cf::RUNTIME;	2028	$map->{last_save} = $cf::RUNTIME;
1404		2029
1405	$map->load_header	2030	$map->load_header
1406	or return;	2031	or return;
1407		2032
1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2033	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1409	# doing this can freeze the server in a sync job, obviously	2034	# doing this can freeze the server in a sync job, obviously
1410	#$cf::WAIT_FOR_TICK->wait;	2035	#$cf::WAIT_FOR_TICK->wait;
		2036	undef $guard2;
		2037	undef $guard1;
1411	$map->reset;	2038	$map->reset;
1412	undef $guard;
1413	return find $path;	2039	return find $path;
1414	}	2040	}
1415		2041
1416	$cf::MAP{$path} = $map	2042	$cf::MAP{$path} = $map
1417	}	2043	}
1418	}	2044	}
1419		2045
1420	sub pre_load { }	2046	sub pre_load { }
1421	sub post_load { }	2047	#sub post_load { } # XS
1422		2048
1423	sub load {	2049	sub load {
1424	my ($self) = @_;	2050	my ($self) = @_;
1425		2051
1426	local $self->{deny_reset} = 1; # loading can take a long time	2052	local $self->{deny_reset} = 1; # loading can take a long time
1427		2053
1428	my $path = $self->{path};	2054	my $path = $self->{path};
		2055
		2056	{
1429	my $guard = cf::lock_acquire "map_load:$path";	2057	my $guard = cf::lock_acquire "map_data:$path";
1430		2058
		2059	return unless $self->valid;
1431	return if $self->in_memory != cf::MAP_SWAPPED;	2060	return unless $self->in_memory == cf::MAP_SWAPPED;
1432		2061
1433	$self->in_memory (cf::MAP_LOADING);	2062	$self->in_memory (cf::MAP_LOADING);
1434		2063
1435	$self->alloc;	2064	$self->alloc;
1436		2065
1437	$self->pre_load;	2066	$self->pre_load;
		2067	cf::cede_to_tick;
1438		2068
1439	$self->_load_objects ($self->{load_path}, 1)	2069	my $f = new_from_file cf::object::thawer $self->{load_path};
		2070	$f->skip_block;
		2071	$self->_load_objects ($f)
1440	or return;	2072	or return;
1441		2073
1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1443	if delete $self->{load_original};	2075	if delete $self->{load_original};
1444		2076
1445	if (my $uniq = $self->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1446	utf8::encode $uniq;	2078	utf8::encode $uniq;
1447	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1448	$self->clear_unique_items;	2081	$self->clear_unique_items;
1449	$self->_load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1450	}	2085	}
1451	}	2086	}
1452		2087
1453	Coro::cede;	2088	$f->resolve_delayed_derefs;
1454		2089
		2090	cf::cede_to_tick;
1455	# now do the right thing for maps	2091	# now do the right thing for maps
1456	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1457
1458	unless ($self->{deny_activate}) {
1459	$self->decay_objects;
1460	$self->fix_auto_apply;
1461	$self->update_buttons;
1462	Coro::cede;
1463	$self->set_darkness_map;
1464	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1465	unless $self->difficulty;	2094	unless $self->difficulty;
1466	Coro::cede;	2095	cf::cede_to_tick;
		2096
		2097	unless ($self->{deny_activate}) {
		2098	$self->decay_objects;
		2099	$self->fix_auto_apply;
		2100	$self->update_buttons;
		2101	cf::cede_to_tick;
1467	$self->activate;	2102	$self->activate;
		2103	}
		2104
		2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
		2107
		2108	$self->in_memory (cf::MAP_ACTIVE);
1468	}	2109	}
1469		2110
1470	$self->post_load;	2111	$self->post_load;
1471
1472	$self->in_memory (cf::MAP_IN_MEMORY);
1473	}	2112	}
1474		2113
		2114	# customize the map for a given player, i.e.
		2115	# return the _real_ map. used by e.g. per-player
		2116	# maps to change the path to ~playername/mappath
1475	sub customise_for {	2117	sub customise_for {
1476	my ($self, $ob) = @_;	2118	my ($self, $ob) = @_;
1477		2119
1478	return find "~" . $ob->name . "/" . $self->{path}	2120	return find "~" . $ob->name . "/" . $self->{path}
1479	if $self->per_player;	2121	if $self->per_player;
1480		2122
		2123	# return find "?party/" . $ob->name . "/" . $self->{path}
		2124	# if $self->per_party;
		2125
1481	$self	2126	$self
1482	}	2127	}
1483		2128
1484	# find and load all maps in the 3x3 area around a map	2129	# find and load all maps in the 3x3 area around a map
1485	sub load_diag {	2130	sub load_neighbours {
1486	my ($map) = @_;	2131	my ($map) = @_;
1487		2132
1488	my @diag; # diagonal neighbours	2133	my @neigh; # diagonal neighbours
1489		2134
1490	for (0 .. 3) {	2135	for (0 .. 3) {
1491	my $neigh = $map->tile_path ($_)	2136	my $neigh = $map->tile_path ($_)
1492	or next;	2137	or next;
1493	$neigh = find $neigh, $map	2138	$neigh = find $neigh, $map
1494	or next;	2139	or next;
1495	$neigh->load;	2140	$neigh->load;
1496		2141
		2142	push @neigh,
1497	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1498	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1499	}	2145	}
1500		2146
1501	for (@diag) {	2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
1502	my $neigh = find @$_	2149	my $neigh = find $path, $origin
1503	or next;	2150	or next;
1504	$neigh->load;	2151	$neigh->load;
1505	}	2152	}
1506	}	2153	}
1507		2154
…		…
1512	}	2159	}
1513		2160
1514	sub do_load_sync {	2161	sub do_load_sync {
1515	my ($map) = @_;	2162	my ($map) = @_;
1516		2163
		2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2165	if $Coro::current == $Coro::main;
		2166
1517	cf::sync_job { $map->load };	2167	cf::sync_job { $map->load };
1518	}	2168	}
1519		2169
1520	our %MAP_PREFETCH;	2170	our %MAP_PREFETCH;
1521	our $MAP_PREFETCHER = undef;	2171	our $MAP_PREFETCHER = undef;
1522		2172
1523	sub find_async {	2173	sub find_async {
1524	my ($path, $origin) = @_;	2174	my ($path, $origin, $load) = @_;
1525		2175
1526	$path = normalise $path, $origin && $origin->{path};	2176	$path = normalise $path, $origin && $origin->{path};
1527		2177
1528	if (my $map = $cf::MAP{$path}) {	2178	if (my $map = $cf::MAP{$path}) {
1529	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2179	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1530	}	2180	}
1531		2181
1532	undef $MAP_PREFETCH{$path};	2182	$MAP_PREFETCH{$path} |= $load;
		2183
1533	$MAP_PREFETCHER ||= cf::async {	2184	$MAP_PREFETCHER ||= cf::async {
		2185	$Coro::current->{desc} = "map prefetcher";
		2186
1534	while (%MAP_PREFETCH) {	2187	while (%MAP_PREFETCH) {
1535	for my $path (keys %MAP_PREFETCH) {	2188	while (my ($k, $v) = each %MAP_PREFETCH) {
1536	my $map = find $path	2189	if (my $map = find $k) {
1537	or next;
1538	$map->load;	2190	$map->load if $v;
		2191	}
1539		2192
1540	delete $MAP_PREFETCH{$path};	2193	delete $MAP_PREFETCH{$k};
1541	}	2194	}
1542	}	2195	}
1543	undef $MAP_PREFETCHER;	2196	undef $MAP_PREFETCHER;
1544	};	2197	};
1545	$MAP_PREFETCHER->prio (6);	2198	$MAP_PREFETCHER->prio (6);
…		…
1548	}	2201	}
1549		2202
1550	sub save {	2203	sub save {
1551	my ($self) = @_;	2204	my ($self) = @_;
1552		2205
1553	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1554		2207
1555	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1556		2209
1557	return unless $self->dirty;	2210	return unless $self->dirty;
1558		2211
…		…
1564	return if $self->{deny_save};	2217	return if $self->{deny_save};
1565		2218
1566	local $self->{last_access} = $self->last_access;#d#	2219	local $self->{last_access} = $self->last_access;#d#
1567		2220
1568	cf::async {	2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
1569	$_->contr->save for $self->players;	2223	$_->contr->save for $self->players;
1570	};	2224	};
		2225
		2226	cf::get_slot 0.02;
1571		2227
1572	if ($uniq) {	2228	if ($uniq) {
1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1574	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1575	} else {	2231	} else {
…		…
1581	my ($self) = @_;	2237	my ($self) = @_;
1582		2238
1583	# save first because save cedes	2239	# save first because save cedes
1584	$self->save;	2240	$self->save;
1585		2241
1586	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1587		2243
1588	return if $self->players;	2244	return if $self->players;
1589	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1590	return if $self->{deny_save};	2246	return if $self->{deny_save};
1591		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1592	$self->clear;	2252	$self->clear;
1593	$self->in_memory (cf::MAP_SWAPPED);
1594	}	2253	}
1595		2254
1596	sub reset_at {	2255	sub reset_at {
1597	my ($self) = @_;	2256	my ($self) = @_;
1598		2257
1599	# TODO: safety, remove and allow resettable per-player maps	2258	# TODO: safety, remove and allow resettable per-player maps
1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
1601	return 1e99 if $self->{deny_reset};	2259	return 1e99 if $self->{deny_reset};
1602		2260
1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2261	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2262	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1605		2263
…		…
1616	my ($self) = @_;	2274	my ($self) = @_;
1617		2275
1618	my $lock = cf::lock_acquire "map_data:$self->{path}";	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1619		2277
1620	return if $self->players;	2278	return if $self->players;
1621	return if $self->isa ("ext::map_per_player");#d#
1622		2279
1623	warn "resetting map ", $self->path;#d#	2280	warn "resetting map ", $self->path, "\n";
1624		2281
1625	$self->in_memory (cf::MAP_SWAPPED);	2282	$self->in_memory (cf::MAP_SWAPPED);
1626		2283
1627	# need to save uniques path	2284	# need to save uniques path
1628	unless ($self->{deny_save}) {	2285	unless ($self->{deny_save}) {
…		…
1632	if $uniq;	2289	if $uniq;
1633	}	2290	}
1634		2291
1635	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1636		2293
		2294	$self->deactivate;
		2295	$_->clear_links_to ($self) for values %cf::MAP;
1637	$self->clear;	2296	$self->clear;
1638
1639	$_->clear_links_to ($self) for values %cf::MAP;
1640		2297
1641	$self->unlink_save;	2298	$self->unlink_save;
1642	$self->destroy;	2299	$self->destroy;
1643	}	2300	}
1644		2301
1645	my $nuke_counter = "aaaa";	2302	my $nuke_counter = "aaaa";
1646		2303
1647	sub nuke {	2304	sub nuke {
1648	my ($self) = @_;	2305	my ($self) = @_;
1649		2306
		2307	{
		2308	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2309
1650	delete $cf::MAP{$self->path};	2310	delete $cf::MAP{$self->path};
1651		2311
1652	$self->unlink_save;	2312	$self->unlink_save;
1653		2313
1654	bless $self, "cf::map";	2314	bless $self, "cf::map";
1655	delete $self->{deny_reset};	2315	delete $self->{deny_reset};
1656	$self->{deny_save} = 1;	2316	$self->{deny_save} = 1;
1657	$self->reset_timeout (1);	2317	$self->reset_timeout (1);
1658	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1659		2319
1660	$cf::MAP{$self->path} = $self;	2320	$cf::MAP{$self->path} = $self;
		2321	}
1661		2322
1662	$self->reset; # polite request, might not happen	2323	$self->reset; # polite request, might not happen
		2324	}
		2325
		2326	=item $maps = cf::map::tmp_maps
		2327
		2328	Returns an arrayref with all map paths of currently instantiated and saved
		2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
		2342	}
		2343
		2344	=item $maps = cf::map::random_maps
		2345
		2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
		2348
		2349	=cut
		2350
		2351	sub random_maps() {
		2352	[
		2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
1663	}	2360	}
1664		2361
1665	=item cf::map::unique_maps	2362	=item cf::map::unique_maps
1666		2363
1667	Returns an arrayref of paths of all shared maps that have	2364	Returns an arrayref of paths of all shared maps that have
1668	instantiated unique items. May block.	2365	instantiated unique items. May block.
1669		2366
1670	=cut	2367	=cut
1671		2368
1672	sub unique_maps() {	2369	sub unique_maps() {
1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2370	[
1674	or return;	2371	map {
1675
1676	my @paths;
1677
1678	for (@$files) {
1679	utf8::decode $_;	2372	utf8::decode $_;
1680	next if /\.pst$/;	2373	s/\.map$//; # TODO future compatibility hack
1681	next unless /^$PATH_SEP/o;	2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1682		2375	? ()
1683	push @paths, cf::map::normalise $_;	2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
1684	}	2378	]
1685
1686	\@paths
1687	}	2379	}
1688		2380
1689	package cf;	2381	=item cf::map::static_maps
		2382
		2383	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2384	file in the shared directory excluding F</styles> and F</editor>). May
		2385	block.
		2386
		2387	=cut
		2388
		2389	sub static_maps() {
		2390	my @dirs = "";
		2391	my @maps;
		2392
		2393	while (@dirs) {
		2394	my $dir = shift @dirs;
		2395
		2396	next if $dir eq "/styles" || $dir eq "/editor";
		2397
		2398	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2399	or return;
		2400
		2401	for (@$files) {
		2402	s/\.map$// or next;
		2403	utf8::decode $_;
		2404	push @maps, "$dir/$_";
		2405	}
		2406
		2407	push @dirs, map "$dir/$_", @$dirs;
		2408	}
		2409
		2410	\@maps
		2411	}
1690		2412
1691	=back	2413	=back
1692		2414
1693	=head3 cf::object	2415	=head3 cf::object
1694		2416
…		…
1698		2420
1699	=over 4	2421	=over 4
1700		2422
1701	=item $ob->inv_recursive	2423	=item $ob->inv_recursive
1702		2424
1703	Returns the inventory of the object _and_ their inventories, recursively.	2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
1704		2427
1705	=cut	2428	=cut
1706		2429
1707	sub inv_recursive_;	2430	sub inv_recursive_;
1708	sub inv_recursive_ {	2431	sub inv_recursive_ {
…		…
1711		2434
1712	sub inv_recursive {	2435	sub inv_recursive {
1713	inv_recursive_ inv $_[0]	2436	inv_recursive_ inv $_[0]
1714	}	2437	}
1715		2438
		2439	=item $ref = $ob->ref
		2440
		2441	Creates and returns a persistent reference to an object that can be stored as a string.
		2442
		2443	=item $ob = cf::object::deref ($refstring)
		2444
		2445	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2446	even if the object actually exists. May block.
		2447
		2448	=cut
		2449
		2450	sub deref {
		2451	my ($ref) = @_;
		2452
		2453	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2454	my ($uuid, $name) = ($1, $2);
		2455	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2456	or return;
		2457	$pl->ob->uuid eq $uuid
		2458	or return;
		2459
		2460	$pl->ob
		2461	} else {
		2462	warn "$ref: cannot resolve object reference\n";
		2463	undef
		2464	}
		2465	}
		2466
1716	package cf;	2467	package cf;
1717		2468
1718	=back	2469	=back
1719		2470
1720	=head3 cf::object::player	2471	=head3 cf::object::player
…		…
1726	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2477	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1727	can be C<undef>. Does the right thing when the player is currently in a	2478	can be C<undef>. Does the right thing when the player is currently in a
1728	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1729		2480
1730	=cut	2481	=cut
		2482
		2483	our $SAY_CHANNEL = {
		2484	id => "say",
		2485	title => "Map",
		2486	reply => "say ",
		2487	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2488	};
		2489
		2490	our $CHAT_CHANNEL = {
		2491	id => "chat",
		2492	title => "Chat",
		2493	reply => "chat ",
		2494	tooltip => "Player chat and shouts, global to the server.",
		2495	};
1731		2496
1732	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1733	# with dialog boxes.	2498	# with dialog boxes.
1734	#TODO: the first argument must go, split into a $npc->reply_to ( method	2499	#TODO: the first argument must go, split into a $npc->reply_to ( method
1735	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1737		2502
1738	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1739		2504
1740	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1741	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1742	} else {	2508	} else {
		2509	my $pl = $self->contr;
		2510
		2511	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2512	my $dialog = $pl->{npc_dialog};
		2513	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2514
		2515	} else {
1743	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1744	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1745	}	2519	}
		2520	}
		2521
		2522	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2523
		2524	=cut
		2525
		2526	sub cf::object::send_msg {
		2527	my $pl = shift->contr
		2528	or return;
		2529	$pl->send_msg (@_);
1746	}	2530	}
1747		2531
1748	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1749		2533
1750	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1763		2547
1764	=item $player_object->enter_link	2548	=item $player_object->enter_link
1765		2549
1766	Freezes the player and moves him/her to a special map (C<{link}>).	2550	Freezes the player and moves him/her to a special map (C<{link}>).
1767		2551
1768	The player should be reasonably safe there for short amounts of time. You	2552	The player should be reasonably safe there for short amounts of time (e.g.
1769	I<MUST> call C<leave_link> as soon as possible, though.	2553	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2554	though, as the palyer cannot control the character while it is on the link
		2555	map.
1770		2556
1771	Will never block.	2557	Will never block.
1772		2558
1773	=item $player_object->leave_link ($map, $x, $y)	2559	=item $player_object->leave_link ($map, $x, $y)
1774		2560
…		…
1797	$self->deactivate_recursive;	2583	$self->deactivate_recursive;
1798		2584
1799	return if UNIVERSAL::isa $self->map, "ext::map_link";	2585	return if UNIVERSAL::isa $self->map, "ext::map_link";
1800		2586
1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2587	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1802	if $self->map;	2588	if $self->map && $self->map->{path} ne "{link}";
1803		2589
1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2590	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1805	}	2591	}
1806		2592
1807	sub cf::object::player::leave_link {	2593	sub cf::object::player::leave_link {
1808	my ($self, $map, $x, $y) = @_;	2594	my ($self, $map, $x, $y) = @_;
		2595
		2596	return unless $self->contr->active;
1809		2597
1810	my $link_pos = delete $self->{_link_pos};	2598	my $link_pos = delete $self->{_link_pos};
1811		2599
1812	unless ($map) {	2600	unless ($map) {
1813	# restore original map position	2601	# restore original map position
…		…
1824	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1825	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1826		2614
1827	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1828	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1829	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1830		2618
1831	$map->load;	2619	$map->load;
1832	$map->load_diag;	2620	$map->load_neighbours;
1833		2621
1834	return unless $self->contr->active;	2622	return unless $self->contr->active;
1835	$self->activate_recursive;
1836		2623
1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2624	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1838	$self->enter_map ($map, $x, $y);	2625	$self->enter_map ($map, $x, $y);
1839	}
1840		2626
1841	cf::player->attach (	2627	# only activate afterwards, to support waiting in hooks
1842	on_logout => sub {	2628	$self->activate_recursive;
1843	my ($pl) = @_;	2629	}
1844		2630
1845	# abort map switching before logout	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1846	if ($pl->ob->{_link_pos}) {
1847	cf::sync_job {
1848	$pl->ob->leave_link
1849	};
1850	}
1851	},
1852	on_login => sub {
1853	my ($pl) = @_;
1854		2632
1855	# try to abort aborted map switching on player login :)	2633	Moves the player to the given map-path and coordinates by first freezing
1856	# should happen only on crashes	2634	her, loading and preparing them map, calling the provided $check callback
1857	if ($pl->ob->{_link_pos}) {	2635	that has to return the map if sucecssful, and then unfreezes the player on
1858	$pl->ob->enter_link;	2636	the new (success) or old (failed) map position. In either case, $done will
1859	(async {	2637	be called at the end of this process.
1860	$pl->ob->reply (undef,
1861	"There was an internal problem at your last logout, "
1862	. "the server will try to bring you to your intended destination in a second.",
1863	cf::NDI_RED);
1864	# we need this sleep as the login has a concurrent enter_exit running
1865	# and this sleep increases chances of the player not ending up in scorn
1866	Coro::Timer::sleep 1;
1867	$pl->ob->leave_link;
1868	})->prio (2);
1869	}
1870	},
1871	);
1872		2638
1873	=item $player_object->goto ($path, $x, $y)	2639	Note that $check will be called with a potentially non-loaded map, so if
		2640	it needs a loaded map it has to call C<< ->load >>.
1874		2641
1875	=cut	2642	=cut
		2643
		2644	our $GOTOGEN;
1876		2645
1877	sub cf::object::player::goto {	2646	sub cf::object::player::goto {
1878	my ($self, $path, $x, $y) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
		2648
		2649	# do generation counting so two concurrent goto's will be executed in-order
		2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1879		2651
1880	$self->enter_link;	2652	$self->enter_link;
1881		2653
1882	(async {	2654	(async {
		2655	$Coro::current->{desc} = "player::goto $path $x $y";
		2656
		2657	# *tag paths override both path and x|y
		2658	if ($path =~ /^\*(.*)$/) {
		2659	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2660	my $ob = $obs[rand @obs];
		2661
		2662	# see if we actually can go there
		2663	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2664	$ob = $obs[rand @obs];
		2665	} else {
		2666	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
		2668	# else put us there anyways for now #d#
		2669
		2670	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2671	} else {
		2672	($path, $x, $y) = (undef, undef, undef);
		2673	}
		2674	}
		2675
1883	my $map = eval {	2676	my $map = eval {
1884	my $map = cf::map::find $path;	2677	my $map = defined $path ? cf::map::find $path : undef;
		2678
		2679	if ($map) {
1885	$map = $map->customise_for ($self) if $map;	2680	$map = $map->customise_for ($self);
		2681	$map = $check->($map) if $check && $map;
		2682	} else {
		2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2684	}
		2685
1886	$map	2686	$map
		2687	};
		2688
		2689	if ($@) {
		2690	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2691	LOG llevError | logBacktrace, Carp::longmess $@;
1887	} or	2692	}
1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1889		2693
		2694	if ($gen == $self->{_goto_generation}) {
		2695	delete $self->{_goto_generation};
1890	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
		2697	}
		2698
		2699	$done->() if $done;
1891	})->prio (1);	2700	})->prio (1);
1892	}	2701	}
1893		2702
1894	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
1895		2704
…		…
1915	}	2724	}
1916		2725
1917	sub prepare_random_map {	2726	sub prepare_random_map {
1918	my ($exit) = @_;	2727	my ($exit) = @_;
1919		2728
1920	my $guard = cf::lock_acquire "exit_prepare:$exit";
1921
1922	# all this does is basically replace the /! path by	2729	# all this does is basically replace the /! path by
1923	# a new random map path (?random/...) with a seed	2730	# a new random map path (?random/...) with a seed
1924	# that depends on the exit object	2731	# that depends on the exit object
1925		2732
1926	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
…		…
1928	if ($exit->map) {	2735	if ($exit->map) {
1929	$rmp->{region} = $exit->region->name;	2736	$rmp->{region} = $exit->region->name;
1930	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
1931	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
1932	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
1933	}	2742	}
1934		2743
1935	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
1936		2745
1937	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1938	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2748	my $meta = "$RANDOMDIR/$md5.meta";
1940		2749
1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2750	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1942	aio_write $fh, 0, (length $data), $data, 0;	2751	aio_write $fh, 0, (length $data), $data, 0;
1943	undef $fh;	2752	undef $fh;
1944	aio_rename "$meta~", $meta;	2753	aio_rename "$meta~", $meta;
1945		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
1946	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
1947	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
1948	}	2761	}
1949	}	2762	}
1950		2763
1951	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
1952	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
1953		2766
1954	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
1955		2768
1956	if ($exit->slaying eq "/!") {
1957	#TODO: this should de-fi-ni-te-ly not be a sync-job
1958	cf::sync_job { prepare_random_map $exit };
1959	}
1960
1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962	my $hp = $exit->stats->hp;
1963	my $sp = $exit->stats->sp;
1964
1965	$self->enter_link;	2769	$self->enter_link;
1966		2770
1967	(async {	2771	(async {
1968	$self->deactivate_recursive; # just to be sure	2772	$Coro::current->{desc} = "enter_exit";
		2773
1969	unless (eval {	2774	unless (eval {
		2775	$self->deactivate_recursive; # just to be sure
		2776
		2777	# random map handling
		2778	{
		2779	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2780
		2781	prepare_random_map $exit
		2782	if $exit->slaying eq "/!";
		2783	}
		2784
		2785	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
		2788
1970	$self->goto ($slaying, $hp, $sp);	2789	$self->goto ($map, $x, $y);
1971		2790
		2791	# if exit is damned, update players death & WoR home-position
		2792	$self->contr->savebed ($map, $x, $y)
		2793	if $exit->flag (cf::FLAG_DAMNED);
		2794
1972	1;	2795	1
1973	}) {	2796	}) {
1974	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
1975	. "I'll try to bring you back to the map you were before. "	2798	. "I'll try to bring you back to the map you were before. "
1976	. "Please report this to the dungeon master!",	2799	. "Please report this to the dungeon master!",
1977	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
1978		2801
1979	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
1980	$self->leave_link;	2803	$self->leave_link;
1981	}	2804	}
1982	})->prio (1);	2805	})->prio (1);
…		…
1998		2821
1999	utf8::encode $text;	2822	utf8::encode $text;
2000	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2001	}	2824	}
2002		2825
		2826	=item $client->send_big_packet ($pkt)
		2827
		2828	Like C<send_packet>, but tries to compress large packets, and fragments
		2829	them as required.
		2830
		2831	=cut
		2832
		2833	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2834
		2835	sub cf::client::send_big_packet {
		2836	my ($self, $pkt) = @_;
		2837
		2838	# try lzf for large packets
		2839	$pkt = "lzf " . Compress::LZF::compress $pkt
		2840	if 1024 <= length $pkt and $self->{can_lzf};
		2841
		2842	# split very large packets
		2843	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2844	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2845	$pkt = "frag";
		2846	}
		2847
		2848	$self->send_packet ($pkt);
		2849	}
		2850
		2851	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2852
		2853	Send a drawinfo or msg packet to the client, formatting the msg for the
		2854	client if neccessary. C<$type> should be a string identifying the type of
		2855	the message, with C<log> being the default. If C<$color> is negative, suppress
		2856	the message unless the client supports the msg packet.
		2857
		2858	=cut
		2859
		2860	# non-persistent channels (usually the info channel)
		2861	our %CHANNEL = (
		2862	"c/motd" => {
		2863	id => "infobox",
		2864	title => "MOTD",
		2865	reply => undef,
		2866	tooltip => "The message of the day",
		2867	},
		2868	"c/identify" => {
		2869	id => "infobox",
		2870	title => "Identify",
		2871	reply => undef,
		2872	tooltip => "Items recently identified",
		2873	},
		2874	"c/examine" => {
		2875	id => "infobox",
		2876	title => "Examine",
		2877	reply => undef,
		2878	tooltip => "Signs and other items you examined",
		2879	},
		2880	"c/shopinfo" => {
		2881	id => "infobox",
		2882	title => "Shop Info",
		2883	reply => undef,
		2884	tooltip => "What your bargaining skill tells you about the shop",
		2885	},
		2886	"c/book" => {
		2887	id => "infobox",
		2888	title => "Book",
		2889	reply => undef,
		2890	tooltip => "The contents of a note or book",
		2891	},
		2892	"c/lookat" => {
		2893	id => "infobox",
		2894	title => "Look",
		2895	reply => undef,
		2896	tooltip => "What you saw there",
		2897	},
		2898	"c/who" => {
		2899	id => "infobox",
		2900	title => "Players",
		2901	reply => undef,
		2902	tooltip => "Shows players who are currently online",
		2903	},
		2904	"c/body" => {
		2905	id => "infobox",
		2906	title => "Body Parts",
		2907	reply => undef,
		2908	tooltip => "Shows which body parts you posess and are available",
		2909	},
		2910	"c/statistics" => {
		2911	id => "infobox",
		2912	title => "Statistics",
		2913	reply => undef,
		2914	tooltip => "Shows your primary statistics",
		2915	},
		2916	"c/skills" => {
		2917	id => "infobox",
		2918	title => "Skills",
		2919	reply => undef,
		2920	tooltip => "Shows your experience per skill and item power",
		2921	},
		2922	"c/shopitems" => {
		2923	id => "infobox",
		2924	title => "Shop Items",
		2925	reply => undef,
		2926	tooltip => "Shows the items currently for sale in this shop",
		2927	},
		2928	"c/resistances" => {
		2929	id => "infobox",
		2930	title => "Resistances",
		2931	reply => undef,
		2932	tooltip => "Shows your resistances",
		2933	},
		2934	"c/pets" => {
		2935	id => "infobox",
		2936	title => "Pets",
		2937	reply => undef,
		2938	tooltip => "Shows information abotu your pets/a specific pet",
		2939	},
		2940	"c/perceiveself" => {
		2941	id => "infobox",
		2942	title => "Perceive Self",
		2943	reply => undef,
		2944	tooltip => "You gained detailed knowledge about yourself",
		2945	},
		2946	"c/uptime" => {
		2947	id => "infobox",
		2948	title => "Uptime",
		2949	reply => undef,
		2950	tooltip => "How long the server has been running since last restart",
		2951	},
		2952	"c/mapinfo" => {
		2953	id => "infobox",
		2954	title => "Map Info",
		2955	reply => undef,
		2956	tooltip => "Information related to the maps",
		2957	},
		2958	"c/party" => {
		2959	id => "party",
		2960	title => "Party",
		2961	reply => "gsay ",
		2962	tooltip => "Messages and chat related to your party",
		2963	},
		2964	"c/death" => {
		2965	id => "death",
		2966	title => "Death",
		2967	reply => undef,
		2968	tooltip => "Reason for and more info about your most recent death",
		2969	},
		2970	"c/say" => $SAY_CHANNEL,
		2971	"c/chat" => $CHAT_CHANNEL,
		2972	);
		2973
		2974	sub cf::client::send_msg {
		2975	my ($self, $channel, $msg, $color, @extra) = @_;
		2976
		2977	$msg = $self->pl->expand_cfpod ($msg)
		2978	unless $color & cf::NDI_VERBATIM;
		2979
		2980	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2981
		2982	# check predefined channels, for the benefit of C
		2983	if ($CHANNEL{$channel}) {
		2984	$channel = $CHANNEL{$channel};
		2985
		2986	$self->ext_msg (channel_info => $channel);
		2987	$channel = $channel->{id};
		2988
		2989	} elsif (ref $channel) {
		2990	# send meta info to client, if not yet sent
		2991	unless (exists $self->{channel}{$channel->{id}}) {
		2992	$self->{channel}{$channel->{id}} = $channel;
		2993	$self->ext_msg (channel_info => $channel);
		2994	}
		2995
		2996	$channel = $channel->{id};
		2997	}
		2998
		2999	return unless @extra || length $msg;
		3000
		3001	# default colour, mask it out
		3002	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3003	if $color & cf::NDI_DEF;
		3004
		3005	my $pkt = "msg "
		3006	. $self->{json_coder}->encode (
		3007	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3008	);
		3009
		3010	$self->send_big_packet ($pkt);
		3011	}
		3012
		3013	=item $client->ext_msg ($type, @msg)
		3014
		3015	Sends an ext event to the client.
		3016
		3017	=cut
		3018
		3019	sub cf::client::ext_msg($$@) {
		3020	my ($self, $type, @msg) = @_;
		3021
		3022	if ($self->extcmd == 2) {
		3023	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3024	} elsif ($self->extcmd == 1) { # TODO: remove
		3025	push @msg, msgtype => "event_$type";
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3027	}
		3028	}
		3029
		3030	=item $client->ext_reply ($msgid, @msg)
		3031
		3032	Sends an ext reply to the client.
		3033
		3034	=cut
		3035
		3036	sub cf::client::ext_reply($$@) {
		3037	my ($self, $id, @msg) = @_;
		3038
		3039	if ($self->extcmd == 2) {
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3041	} elsif ($self->extcmd == 1) {
		3042	#TODO: version 1, remove
		3043	unshift @msg, msgtype => "reply", msgid => $id;
		3044	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3045	}
		3046	}
2003		3047
2004	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
2005		3049
2006	Queues a query to the client, calling the given callback with	3050	Queues a query to the client, calling the given callback with
2007	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3051	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2008	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3052	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2009		3053
2010	Queries can fail, so check the return code. Or don't, as queries will become	3054	Queries can fail, so check the return code. Or don't, as queries will
2011	reliable at some point in the future.	3055	become reliable at some point in the future.
2012		3056
2013	=cut	3057	=cut
2014		3058
2015	sub cf::client::query {	3059	sub cf::client::query {
2016	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
2024	utf8::encode $text;	3068	utf8::encode $text;
2025	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2026		3070
2027	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
2028	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
2029	}	3075	}
2030		3076
2031	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
2032	on_reply => sub {	3083	on_reply => sub {
2033	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
2034		3085
2035	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
2036	# get handled first	3087	# get handled first
…		…
2048	} else {	3099	} else {
2049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2050	}	3101	}
2051	}	3102	}
2052	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($ns, $buf) = @_;
		3106
		3107	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3108
		3109	if (ref $msg) {
		3110	my ($type, $reply, @payload) =
		3111	"ARRAY" eq ref $msg
		3112	? @$msg
		3113	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3114
		3115	my @reply;
		3116
		3117	if (my $cb = $EXTICMD{$type}) {
		3118	@reply = $cb->($ns, @payload);
		3119	}
		3120
		3121	$ns->ext_reply ($reply, @reply)
		3122	if $reply;
		3123
		3124	} else {
		3125	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3126	}
		3127
		3128	cf::override;
		3129	},
2053	);	3130	);
2054		3131
2055	=item $client->async (\&cb)	3132	=item $client->async (\&cb)
2056		3133
2057	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073		3150
2074	$coro	3151	$coro
2075	}	3152	}
2076		3153
2077	cf::client->attach (	3154	cf::client->attach (
2078	on_destroy => sub {	3155	on_client_destroy => sub {
2079	my ($ns) = @_;	3156	my ($ns) = @_;
2080		3157
2081	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2082	},	3159	},
2083	);	3160	);
…		…
2098	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
2099	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
2100		3177
2101	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
2102		3179
2103	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
2104		3185
2105	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
2106		3187
2107	=pod	3188	=pod
2108		3189
2109	The following functions and methods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
2110		3191
2111	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
2112	cf::object::player player	3197	cf::object::player
2113	cf::player peaceful	3198	player
2114	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
2115		3205
2116	=cut	3206	=cut
2117		3207
2118	for (	3208	for (
2119	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
2120	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
2121	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
2122	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
2123	) {	3215	) {
2124	no strict 'refs';	3216	no strict 'refs';
2125	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
2126	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2144		3236
2145	my $qcode = $code;	3237	my $qcode = $code;
2146	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2147	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
2148		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
2149	local $_;	3244	local $_;
2150	local @safe::cf::_safe_eval_args = values %vars;
2151		3245
2152	my $eval =	3246	my $eval =
2153	"do {\n"	3247	"do {\n"
2154	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2155	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
2156	. $code	3250	. $code
2157	. "\n}"	3251	. "\n}"
2158	;	3252	;
2159		3253
		3254	if ($CFG{safe_eval}) {
2160	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
2161	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2162	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
2163		3263
2164	if ($@) {	3264	if ($@) {
2165	warn "$@";	3265	warn "$@";
2166	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
2167	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2186	=cut	3286	=cut
2187		3287
2188	sub register_script_function {	3288	sub register_script_function {
2189	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
2190		3290
2191	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
2192	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
2193	}	3293	}
2194		3294
2195	=back	3295	=back
2196		3296
2197	=cut	3297	=cut
2198
2199	#############################################################################
2200
2201	=head2 EXTENSION DATABASE SUPPORT
2202
2203	Crossfire maintains a very simple database for extension use. It can
2204	currently store anything that can be serialised using Storable, which
2205	excludes objects.
2206
2207	The parameter C<$family> should best start with the name of the extension
2208	using it, it should be unique.
2209
2210	=over 4
2211
2212	=item $value = cf::db_get $family => $key
2213
2214	Returns a single value from the database.
2215
2216	=item cf::db_put $family => $key => $value
2217
2218	Stores the given C<$value> in the family.
2219
2220	=cut
2221
2222	our $DB;
2223
2224	sub db_init {
2225	unless ($DB) {
2226	$DB = BDB::db_create $DB_ENV;
2227
2228	cf::sync_job {
2229	eval {
2230	$DB->set_flags (BDB::CHKSUM);
2231
2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234	cf::cleanup "db_open(db): $!" if $!;
2235	};
2236	cf::cleanup "db_open(db): $@" if $@;
2237	};
2238
2239	my $path = cf::localdir . "/database.pst";
2240	if (stat $path) {
2241	cf::sync_job {
2242	my $pst = Storable::retrieve $path;
2243
2244	cf::db_put (board => data => $pst->{board});
2245	cf::db_put (guildrules => data => $pst->{guildrules});
2246	cf::db_put (rent => balance => $pst->{rent}{balance});
2247	BDB::db_env_txn_checkpoint $DB_ENV;
2248
2249	unlink $path;
2250	};
2251	}
2252	}
2253	}
2254
2255	sub db_get($$) {
2256	my $key = "$_[0]/$_[1]";
2257
2258	cf::sync_job {
2259	BDB::db_get $DB, undef, $key, my $data;
2260
2261	$! ? ()
2262	: Compress::LZF::sthaw $data
2263	}
2264	}
2265
2266	sub db_put($$$) {
2267	BDB::dbreq_pri 4;
2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269	}
2270		3298
2271	#############################################################################	3299	#############################################################################
2272	# the server's init and main functions	3300	# the server's init and main functions
2273		3301
2274	sub load_facedata {	3302	sub load_facedata($) {
2275	my $path = sprintf "%s/facedata", cf::datadir;	3303	my ($path) = @_;
		3304
		3305	# HACK to clear player env face cache, we need some signal framework
		3306	# for this (global event?)
		3307	%ext::player_env::MUSIC_FACE_CACHE = ();
		3308
		3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2276		3310
2277	warn "loading facedata from $path\n";	3311	warn "loading facedata from $path\n";
2278		3312
2279	my $faces;	3313	my $facedata;
2280	0 < aio_load $path, $faces	3314	0 < aio_load $path, $facedata
2281	or die "$path: $!";	3315	or die "$path: $!";
2282		3316
2283	Coro::cede;
2284	$faces = Storable::thaw $faces;	3317	$facedata = Coro::Storable::thaw $facedata;
2285	Coro::cede;
2286		3318
2287	my $meta = delete $faces->{""};
2288	$meta->{version} == 1	3319	$facedata->{version} == 2
2289	or cf::cleanup "$path: version mismatch, cannot proceed.";	3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
2290		3321
		3322	# patch in the exptable
		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3324	$facedata->{resource}{"res/exp_table"} = {
		3325	type => FT_RSRC,
		3326	data => $exp_table,
		3327	hash => (Digest::MD5::md5 $exp_table),
		3328	};
		3329	cf::cede_to_tick;
		3330
		3331	{
		3332	my $faces = $facedata->{faceinfo};
		3333
2291	while (my ($face, $info) = each %$faces) {	3334	while (my ($face, $info) = each %$faces) {
2292	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2293	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3336
		3337	cf::face::set_visibility $idx, $info->{visibility};
		3338	cf::face::set_magicmap $idx, $info->{magicmap};
2294	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2295	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2296	Coro::cede;
2297	}
2298		3341
		3342	cf::cede_to_tick;
		3343	}
		3344
2299	while (my ($face, $info) = each %$faces) {	3345	while (my ($face, $info) = each %$faces) {
2300	next unless $info->{smooth};	3346	next unless $info->{smooth};
		3347
2301	my $idx = cf::face::find $face	3348	my $idx = cf::face::find $face
2302	or next;	3349	or next;
		3350
2303	if (my $smooth = cf::face::find $info->{smooth}) {	3351	if (my $smooth = cf::face::find $info->{smooth}) {
2304	cf::face::set_smooth $idx, $smooth;	3352	cf::face::set_smooth $idx, $smooth;
		3353	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2305	} else {	3354	} else {
2306	warn "smooth face '$info->{smooth}' not found for face '$face'";	3355	warn "smooth face '$info->{smooth}' not found for face '$face'";
2307	}	3356	}
2308	Coro::cede;	3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
2309	}	3362	{
		3363	my $anims = $facedata->{animinfo};
		3364
		3365	while (my ($anim, $info) = each %$anims) {
		3366	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3367	cf::cede_to_tick;
		3368	}
		3369
		3370	cf::anim::invalidate_all; # d'oh
		3371	}
		3372
		3373	{
		3374	my $res = $facedata->{resource};
		3375
		3376	while (my ($name, $info) = each %$res) {
		3377	if (defined $info->{type}) {
		3378	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3379
		3380	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3381	cf::face::set_type $idx, $info->{type};
		3382	} else {
		3383	$RESOURCE{$name} = $info;
		3384	}
		3385
		3386	cf::cede_to_tick;
		3387	}
		3388	}
		3389
		3390	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
2310		3391
2311	1	3392	1
2312	}	3393	}
2313		3394
		3395	cf::global->attach (on_resource_update => sub {
		3396	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3397	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3398
		3399	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3400	my $sound = $soundconf->{compat}[$_]
		3401	or next;
		3402
		3403	my $face = cf::face::find "sound/$sound->[1]";
		3404	cf::sound::set $sound->[0] => $face;
		3405	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3406	}
		3407
		3408	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3409	my $face = cf::face::find "sound/$v";
		3410	cf::sound::set $k => $face;
		3411	}
		3412	}
		3413	});
		3414
		3415	register_exticmd fx_want => sub {
		3416	my ($ns, $want) = @_;
		3417
		3418	while (my ($k, $v) = each %$want) {
		3419	$ns->fx_want ($k, $v);
		3420	}
		3421	};
		3422
		3423	sub load_resource_file($) {
		3424	my $guard = lock_acquire "load_resource_file";
		3425
		3426	my $status = load_resource_file_ $_[0];
		3427	get_slot 0.1, 100;
		3428	cf::arch::commit_load;
		3429
		3430	$status
		3431	}
		3432
		3433	sub reload_regions {
		3434	# HACK to clear player env face cache, we need some signal framework
		3435	# for this (global event?)
		3436	%ext::player_env::MUSIC_FACE_CACHE = ();
		3437
		3438	load_resource_file "$MAPDIR/regions"
		3439	or die "unable to load regions file\n";
		3440
		3441	for (cf::region::list) {
		3442	$_->{match} = qr/$_->{match}/
		3443	if exists $_->{match};
		3444	}
		3445	}
		3446
		3447	sub reload_facedata {
		3448	load_facedata "$DATADIR/facedata"
		3449	or die "unable to load facedata\n";
		3450	}
		3451
		3452	sub reload_archetypes {
		3453	load_resource_file "$DATADIR/archetypes"
		3454	or die "unable to load archetypes\n";
		3455	}
		3456
		3457	sub reload_treasures {
		3458	load_resource_file "$DATADIR/treasures"
		3459	or die "unable to load treasurelists\n";
		3460	}
		3461
2314	sub reload_resources {	3462	sub reload_resources {
2315	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3463	warn "reloading resource files...\n";
2316	or die "unable to load regions file\n";#d#	3464
2317	load_facedata	3465	reload_facedata;
2318	or die "unable to load facedata\n";#d#	3466	reload_archetypes;
2319	}
2320
2321	sub init {
2322	reload_resources;	3467	reload_regions;
2323	}	3468	reload_treasures;
2324		3469
2325	sub cfg_load {	3470	warn "finished reloading resource files\n";
		3471	}
		3472
		3473	sub reload_config {
		3474	warn "reloading config file...\n";
		3475
2326	open my $fh, "<:utf8", cf::confdir . "/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
2327	or return;	3477	or return;
2328		3478
2329	local $/;	3479	local $/;
2330	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
2331		3481
2332	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2333		3483
2334	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3484	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2335	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3485	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2339	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2340	and die "WARNING: m(un)lockall failed: $!\n";	3490	and die "WARNING: m(un)lockall failed: $!\n";
2341	};	3491	};
2342	warn $@ if $@;	3492	warn $@ if $@;
2343	}	3493	}
		3494
		3495	warn "finished reloading resource files\n";
		3496	}
		3497
		3498	sub pidfile() {
		3499	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3500	or die "$PIDFILE: $!";
		3501	flock $fh, &Fcntl::LOCK_EX
		3502	or die "$PIDFILE: flock: $!";
		3503	$fh
		3504	}
		3505
		3506	# make sure only one server instance is running at any one time
		3507	sub atomic {
		3508	my $fh = pidfile;
		3509
		3510	my $pid = <$fh>;
		3511	kill 9, $pid if $pid > 0;
		3512
		3513	seek $fh, 0, 0;
		3514	print $fh $$;
		3515	}
		3516
		3517	sub main_loop {
		3518	warn "EV::loop starting\n";
		3519	if (1) {
		3520	EV::loop;
		3521	}
		3522	warn "EV::loop returned\n";
		3523	goto &main_loop unless $REALLY_UNLOOP;
2344	}	3524	}
2345		3525
2346	sub main {	3526	sub main {
		3527	cf::init_globals; # initialise logging
		3528
		3529	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3530	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3531	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3532	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3533
		3534	cf::init_experience;
		3535	cf::init_anim;
		3536	cf::init_attackmess;
		3537	cf::init_dynamic;
		3538
		3539	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3540
2347	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
2348	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
2349	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3543	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2350	(async {	3544	(async {
2351	Event::one_event;	3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3546	EV::loop EV::LOOP_ONESHOT;
2352	})->prio (Coro::PRIO_MAX);	3547	})->prio (Coro::PRIO_MAX);
2353	};	3548	};
2354		3549
2355	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
		3551
		3552	cf::sync_job {
		3553	cf::load_settings;
		3554	cf::load_materials;
		3555
		3556	reload_resources;
		3557	reload_config;
2356	db_init;	3558	db_init;
		3559
		3560	cf::init_uuid;
		3561	cf::init_signals;
		3562	cf::init_skills;
		3563
		3564	cf::init_beforeplay;
		3565
		3566	atomic;
		3567
2357	load_extensions;	3568	load_extensions;
2358		3569
2359	$TICK_WATCHER->start;	3570	utime time, time, $RUNTIMEFILE;
2360	Event::loop;	3571
		3572	# no (long-running) fork's whatsoever before this point(!)
		3573	use POSIX ();
		3574	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3575
		3576	(pop @POST_INIT)->(0) while @POST_INIT;
		3577	};
		3578
		3579	main_loop;
2361	}	3580	}
2362		3581
2363	#############################################################################	3582	#############################################################################
2364	# initialisation and cleanup	3583	# initialisation and cleanup
2365		3584
2366	# install some emergency cleanup handlers	3585	# install some emergency cleanup handlers
2367	BEGIN {	3586	BEGIN {
		3587	our %SIGWATCHER = ();
2368	for my $signal (qw(INT HUP TERM)) {	3588	for my $signal (qw(INT HUP TERM)) {
2369	Event->signal (	3589	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2370	reentrant => 0,
2371	data => WF_AUTOCANCEL,
2372	signal => $signal,
2373	prio => 0,
2374	cb => sub {
2375	cf::cleanup "SIG$signal";	3590	cf::cleanup "SIG$signal";
2376	},
2377	);	3591	};
		3592	}
		3593	}
		3594
		3595	sub write_runtime_sync {
		3596	my $t0 = EV::time;
		3597
		3598	# first touch the runtime file to show we are still running:
		3599	# the fsync below can take a very very long time.
		3600
		3601	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3602
		3603	my $guard = cf::lock_acquire "write_runtime";
		3604
		3605	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3606	or return;
		3607
		3608	my $value = $cf::RUNTIME + 90 + 10;
		3609	# 10 is the runtime save interval, for a monotonic clock
		3610	# 60 allows for the watchdog to kill the server.
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	# touch it again to show we are up-to-date
		3620	aio_utime $fh, undef, undef;
		3621
		3622	close $fh
		3623	or return;
		3624
		3625	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3626	and return;
		3627
		3628	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3629
2378	}	3630	1
		3631	}
		3632
		3633	our $uuid_lock;
		3634	our $uuid_skip;
		3635
		3636	sub write_uuid_sync($) {
		3637	$uuid_skip ||= $_[0];
		3638
		3639	return if $uuid_lock;
		3640	local $uuid_lock = 1;
		3641
		3642	my $uuid = "$LOCALDIR/uuid";
		3643
		3644	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3645	or return;
		3646
		3647	my $value = uuid_seq uuid_cur;
		3648
		3649	unless ($value) {
		3650	warn "cowardly refusing to write zero uuid value!\n";
		3651	return;
		3652	}
		3653
		3654	my $value = uuid_str $value + $uuid_skip;
		3655	$uuid_skip = 0;
		3656
		3657	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3658	and return;
		3659
		3660	# always fsync - this file is important
		3661	aio_fsync $fh
		3662	and return;
		3663
		3664	close $fh
		3665	or return;
		3666
		3667	aio_rename "$uuid~", $uuid
		3668	and return;
		3669
		3670	warn "uuid file written ($value).\n";
		3671
		3672	1
		3673
		3674	}
		3675
		3676	sub write_uuid($$) {
		3677	my ($skip, $sync) = @_;
		3678
		3679	$sync ? write_uuid_sync $skip
		3680	: async { write_uuid_sync $skip };
2379	}	3681	}
2380		3682
2381	sub emergency_save() {	3683	sub emergency_save() {
2382	my $freeze_guard = cf::freeze_mainloop;	3684	my $freeze_guard = cf::freeze_mainloop;
2383		3685
2384	warn "enter emergency perl save\n";	3686	warn "emergency_perl_save: enter\n";
2385		3687
2386	cf::sync_job {	3688	cf::sync_job {
		3689	# this is a trade-off: we want to be very quick here, so
		3690	# save all maps without fsync, and later call a global sync
		3691	# (which in turn might be very very slow)
		3692	local $USE_FSYNC = 0;
		3693
2387	# use a peculiar iteration method to avoid tripping on perl	3694	# use a peculiar iteration method to avoid tripping on perl
2388	# refcount bugs in for. also avoids problems with players	3695	# refcount bugs in for. also avoids problems with players
2389	# and maps saved/destroyed asynchronously.	3696	# and maps saved/destroyed asynchronously.
2390	warn "begin emergency player save\n";	3697	warn "emergency_perl_save: begin player save\n";
2391	for my $login (keys %cf::PLAYER) {	3698	for my $login (keys %cf::PLAYER) {
2392	my $pl = $cf::PLAYER{$login} or next;	3699	my $pl = $cf::PLAYER{$login} or next;
2393	$pl->valid or next;	3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2394	$pl->save;	3702	$pl->save;
2395	}	3703	}
2396	warn "end emergency player save\n";	3704	warn "emergency_perl_save: end player save\n";
2397		3705
2398	warn "begin emergency map save\n";	3706	warn "emergency_perl_save: begin map save\n";
2399	for my $path (keys %cf::MAP) {	3707	for my $path (keys %cf::MAP) {
2400	my $map = $cf::MAP{$path} or next;	3708	my $map = $cf::MAP{$path} or next;
2401	$map->valid or next;	3709	$map->valid or next;
2402	$map->save;	3710	$map->save;
2403	}	3711	}
2404	warn "end emergency map save\n";	3712	warn "emergency_perl_save: end map save\n";
2405		3713
2406	warn "begin emergency database checkpoint\n";	3714	warn "emergency_perl_save: begin database checkpoint\n";
2407	BDB::db_env_txn_checkpoint $DB_ENV;	3715	BDB::db_env_txn_checkpoint $DB_ENV;
2408	warn "end emergency database checkpoint\n";	3716	warn "emergency_perl_save: end database checkpoint\n";
		3717
		3718	warn "emergency_perl_save: begin write uuid\n";
		3719	write_uuid_sync 1;
		3720	warn "emergency_perl_save: end write uuid\n";
2409	};	3721	};
2410		3722
		3723	warn "emergency_perl_save: starting sync()\n";
		3724	IO::AIO::aio_sync sub {
		3725	warn "emergency_perl_save: finished sync()\n";
		3726	};
		3727
2411	warn "leave emergency perl save\n";	3728	warn "emergency_perl_save: leave\n";
2412	}	3729	}
2413		3730
2414	sub post_cleanup {	3731	sub post_cleanup {
2415	my ($make_core) = @_;	3732	my ($make_core) = @_;
2416		3733
2417	warn Carp::longmess "post_cleanup backtrace"	3734	warn Carp::longmess "post_cleanup backtrace"
2418	if $make_core;	3735	if $make_core;
2419	}
2420		3736
		3737	my $fh = pidfile;
		3738	unlink $PIDFILE if <$fh> == $$;
		3739	}
		3740
		3741	# a safer delete_package, copied from Symbol
		3742	sub clear_package($) {
		3743	my $pkg = shift;
		3744
		3745	# expand to full symbol table name if needed
		3746	unless ($pkg =~ /^main::.*::$/) {
		3747	$pkg = "main$pkg" if $pkg =~ /^::/;
		3748	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3749	$pkg .= '::' unless $pkg =~ /::$/;
		3750	}
		3751
		3752	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3753	my $stem_symtab = *{$stem}{HASH};
		3754
		3755	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3756	or return;
		3757
		3758	# clear all symbols
		3759	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3760	for my $name (keys %$leaf_symtab) {
		3761	_gv_clear *{"$pkg$name"};
		3762	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3763	}
		3764	warn "cleared package $pkg\n";#d#
		3765	}
		3766
2421	sub reload() {	3767	sub do_reload_perl() {
2422	# can/must only be called in main	3768	# can/must only be called in main
2423	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
2424	warn "can only reload from main coroutine";	3770	warn "can only reload from main coroutine";
2425	return;	3771	return;
2426	}	3772	}
2427		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = EV::time;
		3777
		3778	while ($RELOAD) {
2428	warn "reloading...";	3779	warn "reloading...";
2429		3780
2430	warn "entering sync_job";	3781	warn "entering sync_job";
2431		3782
2432	cf::sync_job {	3783	cf::sync_job {
2433	cf::write_runtime; # external watchdog should not bark	3784	cf::write_runtime_sync; # external watchdog should not bark
2434	cf::emergency_save;	3785	cf::emergency_save;
2435	cf::write_runtime; # external watchdog should not bark	3786	cf::write_runtime_sync; # external watchdog should not bark
2436		3787
2437	warn "syncing database to disk";	3788	warn "syncing database to disk";
2438	BDB::db_env_txn_checkpoint $DB_ENV;	3789	BDB::db_env_txn_checkpoint $DB_ENV;
2439		3790
2440	# if anything goes wrong in here, we should simply crash as we already saved	3791	# if anything goes wrong in here, we should simply crash as we already saved
2441		3792
2442	warn "cancelling all WF_AUTOCANCEL watchers";
2443	for (Event::all_watchers) {
2444	$_->cancel if $_->data & WF_AUTOCANCEL;
2445	}
2446
2447	warn "flushing outstanding aio requests";	3793	warn "flushing outstanding aio requests";
2448	for (;;) {
2449	BDB::flush;
2450	IO::AIO::flush;
2451	Coro::cede;
2452	last unless IO::AIO::nreqs || BDB::nreqs;	3794	while (IO::AIO::nreqs || BDB::nreqs) {
2453	warn "iterate...";	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2454	}
2455
2456	++$RELOAD;
2457
2458	warn "cancelling all extension coros";
2459	$_->cancel for values %EXT_CORO;
2460	%EXT_CORO = ();
2461
2462	warn "removing commands";
2463	%COMMAND = ();
2464
2465	warn "removing ext commands";
2466	%EXTCMD = ();
2467
2468	warn "unloading/nuking all extensions";
2469	for my $pkg (@EXTS) {
2470	warn "... unloading $pkg";
2471
2472	if (my $cb = $pkg->can ("unload")) {
2473	eval {
2474	$cb->($pkg);
2475	1
2476	} or warn "$pkg unloaded, but with errors: $@";
2477	}	3796	}
2478		3797
2479	warn "... nuking $pkg";	3798	warn "cancelling all extension coros";
2480	Symbol::delete_package $pkg;	3799	$_->cancel for values %EXT_CORO;
2481	}	3800	%EXT_CORO = ();
2482		3801
2483	warn "unloading all perl modules loaded from $LIBDIR";	3802	warn "removing commands";
2484	while (my ($k, $v) = each %INC) {	3803	%COMMAND = ();
2485	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2486		3804
		3805	warn "removing ext/exti commands";
		3806	%EXTCMD = ();
		3807	%EXTICMD = ();
		3808
		3809	warn "unloading/nuking all extensions";
		3810	for my $pkg (@EXTS) {
2487	warn "... unloading $k";	3811	warn "... unloading $pkg";
2488	delete $INC{$k};
2489		3812
2490	$k =~ s/\.pm$//;
2491	$k =~ s/\//::/g;
2492
2493	if (my $cb = $k->can ("unload_module")) {	3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
2494	$cb->();	3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
2495	}	3822	}
2496		3823
2497	Symbol::delete_package $k;	3824	warn "unloading all perl modules loaded from $LIBDIR";
		3825	while (my ($k, $v) = each %INC) {
		3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3827
		3828	warn "... unloading $k";
		3829	delete $INC{$k};
		3830
		3831	$k =~ s/\.pm$//;
		3832	$k =~ s/\//::/g;
		3833
		3834	if (my $cb = $k->can ("unload_module")) {
		3835	$cb->();
		3836	}
		3837
		3838	clear_package $k;
2498	}	3839	}
2499		3840
2500	warn "getting rid of safe::, as good as possible";	3841	warn "getting rid of safe::, as good as possible";
2501	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
2502	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3843	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2503		3844
2504	warn "unloading cf.pm \"a bit\"";	3845	warn "unloading cf.pm \"a bit\"";
2505	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
		3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2506		3848
2507	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
2508	# and global variables created in xs	3850	# and global variables created in xs
2509	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
2510		3852
2511	warn "unload completed, starting to reload now";	3853	warn "unload completed, starting to reload now";
2512		3854
2513	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
2514	require cf;	3856	require cf;
2515	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
2516		3858
2517	warn "loading config and database again";	3859	warn "loading config and database again";
2518	cf::cfg_load;	3860	cf::reload_config;
2519		3861
2520	warn "loading extensions";	3862	warn "loading extensions";
2521	cf::load_extensions;	3863	cf::load_extensions;
2522		3864
		3865	if ($REATTACH_ON_RELOAD) {
2523	warn "reattaching attachments to objects/players";	3866	warn "reattaching attachments to objects/players";
2524	_global_reattach; # objects, sockets	3867	_global_reattach; # objects, sockets
2525	warn "reattaching attachments to maps";	3868	warn "reattaching attachments to maps";
2526	reattach $_ for values %MAP;	3869	reattach $_ for values %MAP;
2527	warn "reattaching attachments to players";	3870	warn "reattaching attachments to players";
2528	reattach $_ for values %PLAYER;	3871	reattach $_ for values %PLAYER;
		3872	}
2529		3873
2530	warn "loading reloadable resources";	3874	warn "running post_init jobs";
2531	reload_resources;	3875	(pop @POST_INIT)->(1) while @POST_INIT;
2532		3876
2533	warn "leaving sync_job";	3877	warn "leaving sync_job";
2534		3878
2535	1	3879	1
2536	} or do {	3880	} or do {
2537	warn $@;	3881	warn $@;
2538	warn "error while reloading, exiting.";	3882	cf::cleanup "error while reloading, exiting.";
2539	exit 1;	3883	};
		3884
		3885	warn "reloaded";
		3886	--$RELOAD;
		3887	}
		3888
		3889	$t1 = EV::time - $t1;
		3890	warn "reload completed in ${t1}s\n";
		3891	};
		3892
		3893	our $RELOAD_WATCHER; # used only during reload
		3894
		3895	sub reload_perl() {
		3896	# doing reload synchronously and two reloads happen back-to-back,
		3897	# coro crashes during coro_state_free->destroy here.
		3898
		3899	$RELOAD_WATCHER ||= cf::async {
		3900	Coro::AIO::aio_wait cache_extensions;
		3901
		3902	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3903	do_reload_perl;
		3904	undef $RELOAD_WATCHER;
		3905	};
2540	};	3906	};
2541		3907	}
2542	warn "reloaded";
2543	};
2544
2545	our $RELOAD_WATCHER; # used only during reload
2546		3908
2547	register_command "reload" => sub {	3909	register_command "reload" => sub {
2548	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
2549		3911
2550	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
2551	$who->message ("reloading server.");	3913	$who->message ("reloading server.");
2552		3914	async {
2553	# doing reload synchronously and two reloads happen back-to-back,	3915	$Coro::current->{desc} = "perl_reload";
2554	# coro crashes during coro_state_free->destroy here.
2555
2556	$RELOAD_WATCHER ||= Event->timer (
2557	reentrant => 0,
2558	after => 0,
2559	data => WF_AUTOCANCEL,
2560	cb => sub {
2561	reload;	3916	reload_perl;
2562	undef $RELOAD_WATCHER;
2563	},
2564	);	3917	};
2565	}	3918	}
2566	};	3919	};
2567		3920
2568	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
2569		3922
2570	my $bug_warning = 0;	3923	my $bug_warning = 0;
2571		3924
2572	$TICK_WATCHER = Event->timer (	3925	our @WAIT_FOR_TICK;
2573	reentrant => 0,	3926	our @WAIT_FOR_TICK_BEGIN;
2574	parked => 1,	3927
2575	prio => 0,	3928	sub wait_for_tick {
2576	at => $NEXT_TICK || $TICK,	3929	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2577	data => WF_AUTOCANCEL,	3930
2578	cb => sub {	3931	my $signal = new Coro::Signal;
		3932	push @WAIT_FOR_TICK, $signal;
		3933	$signal->wait;
		3934	}
		3935
		3936	sub wait_for_tick_begin {
		3937	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3938
		3939	my $signal = new Coro::Signal;
		3940	push @WAIT_FOR_TICK_BEGIN, $signal;
		3941	$signal->wait;
		3942	}
		3943
		3944	sub tick {
2579	if ($Coro::current != $Coro::main) {	3945	if ($Coro::current != $Coro::main) {
2580	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3946	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2581	unless ++$bug_warning > 10;	3947	unless ++$bug_warning > 10;
2582	return;	3948	return;
2583	}	3949	}
2584		3950
2585	$NOW = Event::time;
2586
2587	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2588	$RUNTIME += $TICK;
2589	$NEXT_TICK += $TICK;
2590		3952
		3953	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
		3954
2591	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2592	$NEXT_RUNTIME_WRITE = $NOW + 10;	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2593	Coro::async_pool {	3957	Coro::async_pool {
		3958	$Coro::current->{desc} = "runtime saver";
2594	write_runtime	3959	write_runtime_sync
2595	or warn "ERROR: unable to write runtime file: $!";	3960	or warn "ERROR: unable to write runtime file: $!";
2596	};
2597	}	3961	};
2598
2599	$WAIT_FOR_TICK->broadcast;
2600	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2601
2602	# my $AFTER = Event::time;
2603	# warn $AFTER - $NOW;#d#
2604
2605	# if we are delayed by four ticks or more, skip them all
2606	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2607
2608	$TICK_WATCHER->at ($NEXT_TICK);
2609	$TICK_WATCHER->start;
2610	},	3962	}
2611	);	3963
		3964	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3965	$sig->send;
		3966	}
		3967	while (my $sig = shift @WAIT_FOR_TICK) {
		3968	$sig->send;
		3969	}
		3970
		3971	$LOAD = ($NOW - $TICK_START) / $TICK;
		3972	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3973
		3974	if (0) {
		3975	if ($NEXT_TICK) {
		3976	my $jitter = $TICK_START - $NEXT_TICK;
		3977	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3978	warn "jitter $JITTER\n";#d#
		3979	}
		3980	}
		3981	}
2612		3982
2613	{	3983	{
2614	BDB::max_poll_time $TICK * 0.1;	3984	# configure BDB
2615	$BDB_POLL_WATCHER = Event->io (	3985
2616	reentrant => 0,
2617	fd => BDB::poll_fileno,
2618	poll => 'r',
2619	prio => 0,
2620	data => WF_AUTOCANCEL,
2621	cb => \&BDB::poll_cb,
2622	);
2623	BDB::min_parallel 8;	3986	BDB::min_parallel 16;
2624		3987	BDB::max_poll_reqs $TICK * 0.1;
2625	BDB::set_sync_prepare {	3988	$AnyEvent::BDB::WATCHER->priority (1);
2626	my $status;
2627	my $current = $Coro::current;
2628	(
2629	sub {
2630	$status = $!;
2631	$current->ready; undef $current;
2632	},
2633	sub {
2634	Coro::schedule while defined $current;
2635	$! = $status;
2636	},
2637	)
2638	};
2639		3989
2640	unless ($DB_ENV) {	3990	unless ($DB_ENV) {
2641	$DB_ENV = BDB::db_env_create;	3991	$DB_ENV = BDB::db_env_create;
		3992	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3993	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3994	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3995	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3996	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2642		3997
2643	cf::sync_job {	3998	cf::sync_job {
2644	eval {	3999	eval {
2645	BDB::db_env_open	4000	BDB::db_env_open
2646	$DB_ENV,	4001	$DB_ENV,
2647	$BDB_ENV_DIR,	4002	$BDBDIR,
2648	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4003	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2649	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4004	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2650	0666;	4005	0666;
2651		4006
2652	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4007	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2653
2654	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2655	$DB_ENV->set_lk_detect;
2656	};	4008	};
2657		4009
2658	cf::cleanup "db_env_open(db): $@" if $@;	4010	cf::cleanup "db_env_open(db): $@" if $@;
2659	};	4011	};
2660	}	4012	}
		4013
		4014	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4015	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4016	};
		4017	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4018	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4019	};
		4020	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4021	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4022	};
2661	}	4023	}
2662		4024
2663	{	4025	{
		4026	# configure IO::AIO
		4027
2664	IO::AIO::min_parallel 8;	4028	IO::AIO::min_parallel 8;
2665
2666	undef $Coro::AIO::WATCHER;
2667	IO::AIO::max_poll_time $TICK * 0.1;	4029	IO::AIO::max_poll_time $TICK * 0.1;
2668	$AIO_POLL_WATCHER = Event->io (	4030	undef $AnyEvent::AIO::WATCHER;
2669	reentrant => 0,
2670	data => WF_AUTOCANCEL,
2671	fd => IO::AIO::poll_fileno,
2672	poll => 'r',
2673	prio => 6,
2674	cb => \&IO::AIO::poll_cb,
2675	);
2676	}	4031	}
		4032
		4033	my $_log_backtrace;
		4034
		4035	sub _log_backtrace {
		4036	my ($msg, @addr) = @_;
		4037
		4038	$msg =~ s/\n//;
		4039
		4040	# limit the # of concurrent backtraces
		4041	if ($_log_backtrace < 2) {
		4042	++$_log_backtrace;
		4043	my $perl_bt = Carp::longmess $msg;
		4044	async {
		4045	$Coro::current->{desc} = "abt $msg";
		4046
		4047	my @bt = fork_call {
		4048	@addr = map { sprintf "%x", $_ } @addr;
		4049	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4050	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4051	or die "addr2line: $!";
		4052
		4053	my @funcs;
		4054	my @res = <$fh>;
		4055	chomp for @res;
		4056	while (@res) {
		4057	my ($func, $line) = splice @res, 0, 2, ();
		4058	push @funcs, "[$func] $line";
		4059	}
		4060
		4061	@funcs
		4062	};
		4063
		4064	LOG llevInfo, "[ABT] $perl_bt\n";
		4065	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4066	LOG llevInfo, "[ABT] $_\n" for @bt;
		4067	--$_log_backtrace;
		4068	};
		4069	} else {
		4070	LOG llevInfo, "[ABT] $msg\n";
		4071	LOG llevInfo, "[ABT] [suppressed]\n";
		4072	}
		4073	}
		4074
		4075	# load additional modules
		4076	require "cf/$_.pm" for @EXTRA_MODULES;
		4077	cf::_connect_to_perl_2;
2677		4078
2678	END { cf::emergency_save }	4079	END { cf::emergency_save }
2679		4080
2680	1	4081	1
2681		4082

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