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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.216 by root, Thu Feb 15 14:30:21 2007 UTC vs.
Revision 1.489 by root, Fri Oct 23 03:08:35 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.5 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
20	use BDB ();	55	use BDB ();
21	use Data::Dumper;	56	use Data::Dumper;
22	use Digest::MD5;	57	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
27	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
28		64
		65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		77
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		82
40	our %COMMAND = ();	83	our %COMMAND = ();
41	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
42		85
43	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
47		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	93	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
50		96
51	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	98	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	115	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
61		124
62	our %CFG;	125	our %CFG;
63		126
64	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
66		130
67	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		134
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $REALLY_UNLOOP; # never set to true, please :)
		147
79	binmode STDOUT;	148	binmode STDOUT;
80	binmode STDERR;	149	binmode STDERR;
81		150
82	# read virtual server time, if available	151	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
87	}	156	}
88		157
89	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	159
91	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		162
96	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
97		164
98	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::"} };
99		177
100	#############################################################################	178	#############################################################################
101		179
102	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
103		181
…		…
110	=item $cf::RUNTIME	188	=item $cf::RUNTIME
111		189
112	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
113	every server tick.	191	every server tick.
114		192
115	=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
116		196
117	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		201
120	=item $cf::NOW	202	=item $cf::NOW
121		203
122	The time of the last (current) server tick.	204	The time of the last (current) server tick.
123		205
124	=item $cf::TICK	206	=item $cf::TICK
125		207
126	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
127		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
128	=item %cf::CFG	220	=item %cf::CFG
129		221
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	223	from wherever your confdir points to.
132		224
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		226
135	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
136	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
137	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.
138	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.
139		242
140	=back	243	=back
141		244
142	=cut	245	=cut
143		246
144	BEGIN {	247	$Coro::State::WARNHOOK = sub {
145	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	248	my $msg = join "", @_;
147	utf8::encode $msg;
148		249
149	$msg .= "\n"	250	$msg .= "\n"
150	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
151		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
152	LOG llevError, $msg;	255	LOG llevError, $msg;
153	};	256	};
154	}	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	};
155		271
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		279
163	# 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
164	# within the Safe compartment.	281	# within the Safe compartment.
165	for my $pkg (qw(	282	for my $pkg (qw(
166	cf::global cf::attachable	283	cf::global cf::attachable
167	cf::object cf::object::player	284	cf::object cf::object::player
168	cf::client cf::player	285	cf::client cf::player
169	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
170	cf::map cf::party cf::region	288	cf::party cf::region
171	)) {	289	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	291	}
175		292
176	$Event::DIED = sub {	293	$EV::DIED = sub {
177	warn "error in event callback: @_";	294	warn "error in event callback: @_";
178	};	295	};
		296
		297	#############################################################################
179		298
180	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
181		300
182	=over 4	301	=over 4
183		302
…		…
202	$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;
203	$d	322	$d
204	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
205	}	324	}
206		325
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
210		327
211	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
212		329
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
221		331
222	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
223		333
224	=cut	334	=cut
225		335
226	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
228	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[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;
229	}	353	}
230		354
231	=item cf::lock_wait $string	355	=item cf::lock_wait $string
232		356
233	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
234		358
235	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
236		360
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
240	returned.	364	returned.
241		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
242	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
243	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
244		371
245	=cut	372	=item $locked = cf::lock_active $string
246		373
247	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
248		379
249	sub lock_wait($) {	380	sub lock_wait($) {
250	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	382	}
258		383
259	sub lock_acquire($) {	384	sub lock_acquire($) {
260	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
261		387
262	# wait, to be sure we are not locked	388	sub lock_active($) {
263	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	390	}
272		391
273	sub freeze_mainloop {	392	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
275		394
276	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
277	$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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
278	};	456	}
279	$TICK_WATCHER->stop;	457	};
280	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
281	}	471	}
282		472
283	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
284		474
285	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		480
291	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
292		482
293	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
294		484
295	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
298		489
299	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
302	fast or be very important.	493	fast or be very important.
…		…
305		496
306	sub sync_job(&) {	497	sub sync_job(&) {
307	my ($job) = @_;	498	my ($job) = @_;
308		499
309	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
310	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
312		505
313	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	507
315	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
316		509
317	my $busy = 1;	510	my $busy = 1;
318	my @res;	511	my @res;
319		512
320	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	515	@res = eval { $job->() };
322	warn $@ if $@;	516	warn $@ if $@;
323	undef $busy;	517	undef $busy;
324	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
325		519
326	while ($busy) {	520	while ($busy) {
327	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
328	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
329		531
330	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
331	} else {	533	} else {
332	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
333		535
…		…
353	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
354		556
355	$coro	557	$coro
356	}	558	}
357		559
358	sub write_runtime {	560	=item fork_call { }, $args
359	my $runtime = cf::localdir . "/runtime";
360		561
361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
362	or return;	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
363		566
364	my $value = $cf::RUNTIME + 90 + 10;	567	=cut
365	# 10 is the runtime save interval, for a monotonic clock
366	# 60 allows for the watchdog to kill the server.
367		568
368	(aio_write $fh, 0, (length $value), $value, 0) <= 0	569	sub fork_call(&@) {
369	and return;	570	my ($cb, @args) = @_;
370		571
371	# always fsync - this file is important	572	# we seemingly have to make a local copy of the whole thing,
372	aio_fsync $fh	573	# otherwise perl prematurely frees the stuff :/
373	and return;	574	# TODO: investigate and fix (likely this will be rather laborious)
374		575
375	close $fh	576	my @res = Coro::Util::fork_eval {
376	or return;	577	reset_signals;
		578	&$cb
		579	}, @args;
377		580
378	aio_rename "$runtime~", $runtime	581	wantarray ? @res : $res[-1]
379	and return;	582	}
380		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
381	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
382	}	747	}
383		748
384	=back	749	=back
385		750
386	=cut	751	=cut
387		752
388	#############################################################################	753	#############################################################################
389		754
390	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
391		756
392	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
393	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
394	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
395		760
396	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
397	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
398	crossfire+).	763	Deliantra).
399		764
400	=over 4	765	=over 4
401		766
402	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
403		768
…		…
447	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
448		813
449	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
450	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
451		816
452	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
453	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
454		819
455	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
456		821
457	=over 4	822	=over 4
…		…
566	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
567		932
568	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
569	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
570	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
571	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
572		937
573	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
574	my $pkg = shift @arg;	939	my $pkg = shift @arg;
575		940
576	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
605	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
606	}	971	}
607		972
608	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
609	} else {	974	} else {
610	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
611	}	976	}
612		977
613	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
614	}	979	}
615		980
…		…
617	if (ref $_[0]) {	982	if (ref $_[0]) {
618	_object_attach @_;	983	_object_attach @_;
619	} else {	984	} else {
620	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
621	}	986	}
		987	_recalc_want;
622	};	988	};
623		989
624	# all those should be optimised	990	# all those should be optimised
625	sub cf::attachable::detach {	991	sub cf::attachable::detach {
626	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
629	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
630	reattach ($obj);	996	reattach ($obj);
631	} else {	997	} else {
632	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
633	}	999	}
		1000	_recalc_want;
634	};	1001	};
635		1002
636	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
637	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
638		1005
…		…
653	";	1020	";
654	die if $@;	1021	die if $@;
655	}	1022	}
656		1023
657	our $override;	1024	our $override;
658	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
659		1026
660	sub override {	1027	sub override {
661	$override = 1;	1028	$override = 1;
662	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
663	}	1030	}
664		1031
665	sub do_invoke {	1032	sub do_invoke {
666	my $event = shift;	1033	my $event = shift;
667	my $callbacks = shift;	1034	my $callbacks = shift;
668		1035
669	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
670		1037
671	local $override;	1038	local $override;
672		1039
673	for (@$callbacks) {	1040	for (@$callbacks) {
674	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
683	}	1050	}
684		1051
685	0	1052	0
686	}	1053	}
687		1054
688	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
689		1056
690	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
691		1058
692	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
693		1060
694	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
695	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
696	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
697		1064
698	=back	1065	=back
699		1066
700	=cut	1067	=cut
701		1068
702	#############################################################################	1069	#############################################################################
703	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
704		1113
705	sub reattach {	1114	sub reattach {
706	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
707	my ($obj) = @_;	1116	my ($obj) = @_;
708		1117
		1118	# no longer needed after getting rid of delete_package?
709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
710		1120
711	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
712		1122
713	@$registry = ();	1123	@$registry = ();
714		1124
…		…
729	cf::attachable->attach (	1139	cf::attachable->attach (
730	prio => -1000000,	1140	prio => -1000000,
731	on_instantiate => sub {	1141	on_instantiate => sub {
732	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
733		1143
734	$data = from_json $data;	1144	$data = decode_json $data;
735		1145
736	for (@$data) {	1146	for (@$data) {
737	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
738		1148
739	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
755	sub object_freezer_save {	1165	sub object_freezer_save {
756	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
757		1167
758	sync_job {	1168	sync_job {
759	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
760	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
761	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
762		1173
763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
764	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
766	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	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;
		1179	aio_fsync $fh;
		1180	}
767	close $fh;	1181	aio_close $fh;
768		1182
769	if (@$objs) {	1183	if (@$objs) {
770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
772	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
773	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
774	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	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;
		1190	aio_fsync $fh;
		1191	}
775	close $fh;	1192	aio_close $fh;
776	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
777	}	1194	}
778	} else {	1195	} else {
779	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
780	}	1197	}
781		1198
782	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
783	} else {	1203	} else {
784	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
785	}	1205	}
786	} else {	1206	} else {
787	aio_unlink $filename;	1207	aio_unlink $filename;
788	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
789	}	1209	}
790	}	1210	};
791	}	1211	}
792		1212
793	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
794	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
795		1215
…		…
807	or return;	1227	or return;
808		1228
809	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
810	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
811	or return;	1231	or return;
		1232
812	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
813	}	1235	}
814		1236
		1237	utf8::decode (my $decname = $filename);
815	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
817	return ($data, $av);	1241	($data, $av)
818	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
819		1249
820	#############################################################################	1250	#############################################################################
821	# command handling &c	1251	# command handling &c
822		1252
823	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1267	}
838		1268
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1270
841	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
842		1276
843	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
844	called.	1278	called.
845		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
846	=cut	1291	=cut
847		1292
848	sub register_extcmd {	1293	sub register_extcmd {
849	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
850		1295
851	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
852	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
853		1306
854	cf::player->attach (	1307	cf::player->attach (
855	on_command => sub {	1308	on_command => sub {
856	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
857		1310
…		…
865	cf::override;	1318	cf::override;
866	},	1319	},
867	on_extcmd => sub {	1320	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
869		1322
870	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1324
872	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
874	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
875	$pl->ext_reply ($msg->{msgid}, %reply);
876	}
877	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
878	} else {	1340	} else {
879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
880	}	1342	}
881		1343
882	cf::override;	1344	cf::override;
883	},	1345	},
884	);	1346	);
885		1347
		1348	# "readahead" all extensions
886	sub load_extension {	1349	sub cache_extensions {
887	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
888		1351
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
890	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
891	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}	1355	}
914	die $@;
915	}	1356	};
916		1357
917	push @EXTS, $pkg;	1358	$grp
918	}	1359	}
919		1360
920	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
921	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1366	next unless -r $path;
923	eval {	1367
924	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
925	1	1424	}
926	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
927	}	1430	};
928	}	1431	}
929		1432
930	#############################################################################	1433	#############################################################################
931		1434
		1435	=back
		1436
932	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
933		1438
934	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
935		1440
936	=cut	1441	=cut
937		1442
938	package cf::player;	1443	package cf::player;
939		1444
…		…
941		1446
942	=head3 cf::player	1447	=head3 cf::player
943		1448
944	=over 4	1449	=over 4
945		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
946	=item cf::player::find $login	1465	=item cf::player::find $login
947		1466
948	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
949		1468
950	=cut	1469	=cut
951		1470
952	sub playerdir($) {	1471	sub playerdir($) {
953	cf::localdir	1472	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1474	}
959		1475
960	sub path($) {	1476	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1478
963	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
964	}	1480	}
965		1481
966	sub find_active($) {	1482	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
971		1487
972	sub exists($) {	1488	sub exists($) {
973	my ($login) = @_;	1489	my ($login) = @_;
974		1490
975	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
976	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
977	}	1493	}
978		1494
979	sub find($) {	1495	sub find($) {
980	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
981	my $login = $_[0];	1497	my $login = $_[0];
982		1498
983	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
984		1500
985	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
986	my $pl = load_pl path $login	1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
987	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
988	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
989	}	1518	}
990	}	1519	}
991	}	1520	}
992		1521
…		…
1001	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1002		1531
1003	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1004	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1005		1534
		1535	cf::get_slot 0.01;
		1536
1006	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1007	Coro::cede;	1538	cf::cede_to_tick;
1008	}	1539	}
1009		1540
1010	sub new($) {	1541	sub new($) {
1011	my ($login) = @_;	1542	my ($login) = @_;
1012		1543
…		…
1018	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1019		1550
1020	$self	1551	$self
1021	}	1552	}
1022		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1023	=item $pl->quit_character	1564	=item $pl->quit_character
1024		1565
1025	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1026	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1027		1568
1028	=cut	1569	=cut
1029		1570
1030	sub quit_character {	1571	sub quit_character {
1031	my ($pl) = @_;	1572	my ($pl) = @_;
1032		1573
		1574	my $name = $pl->ob->name;
		1575
1033	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1035		1578
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1037	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1039	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1040		1585
1041	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1588	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1589	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
1046	IO::AIO::aio_rmtree $temp;	1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
1047	}	1612	}
1048		1613
1049	=item cf::player::list_logins	1614	=item cf::player::list_logins
1050		1615
1051	Returns am arrayref of all valid playernames in the system, can take a	1616	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1053		1618
1054	=cut	1619	=cut
1055		1620
1056	sub list_logins {	1621	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1623	or return [];
1059		1624
1060	my @logins;	1625	my @logins;
1061		1626
1062	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1064	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1065	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1066		1637
1067	utf8::decode $login;	1638	utf8::decode $login;
1068	push @logins, $login;	1639	push @logins, $login;
1069	}	1640	}
1070		1641
…		…
1097	}	1668	}
1098		1669
1099	\@paths	1670	\@paths
1100	}	1671	}
1101		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1103		1678
1104	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1105		1680
1106	=cut	1681	=cut
1107		1682
1108	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1109	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1110		1685
1111	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1112
1113	$self->send ("ext " . cf::to_json \%msg);
1114	}	1687	}
1115		1688
1116	package cf;	1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
		1716	my ($path) = @_;
		1717
		1718	my ($match, $specificity);
		1719
		1720	for my $region (list) {
		1721	if ($region->{match} && $path =~ $region->{match}) {
		1722	($match, $specificity) = ($region, $region->specificity)
		1723	if $region->specificity > $specificity;
		1724	}
		1725	}
		1726
		1727	$match
		1728	}
1117		1729
1118	=back	1730	=back
1119
1120		1731
1121	=head3 cf::map	1732	=head3 cf::map
1122		1733
1123	=over 4	1734	=over 4
1124		1735
…		…
1136	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1137	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1138		1749
1139	sub generate_random_map {	1750	sub generate_random_map {
1140	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1141	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1142	$self->_create_random_map (	1756	$self->_create_random_map (
1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1179	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1180		1794
1181	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1182	local $self->{path};	1796	local $self->{path};
1183	local $self->{load_path};	1797	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		1798
1187	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1188	}	1800	}
1189		1801
1190	sub normalise {	1802	sub normalise {
…		…
1237	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1238	return $self;	1850	return $self;
1239	}	1851	}
1240	}	1852	}
1241		1853
1242	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1243	()	1855	()
1244	}	1856	}
1245		1857
1246	sub init {	1858	sub init {
1247	my ($self) = @_;	1859	my ($self) = @_;
…		…
1262		1874
1263	# the original (read-only) location	1875	# the original (read-only) location
1264	sub load_path {	1876	sub load_path {
1265	my ($self) = @_;	1877	my ($self) = @_;
1266		1878
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1268	}	1880	}
1269		1881
1270	# the temporary/swap location	1882	# the temporary/swap location
1271	sub save_path {	1883	sub save_path {
1272	my ($self) = @_;	1884	my ($self) = @_;
1273		1885
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1276	}	1888	}
1277		1889
1278	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1279	sub uniq_path {	1891	sub uniq_path {
1280	my ($self) = @_;	1892	my ($self) = @_;
1281		1893
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1284	}	1896	}
1285		1897
1286	# and all this just because we cannot iterate over	1898	sub decay_objects {
1287	# all maps in C++...
1288	sub change_all_map_light {
1289	my ($change) = @_;	1899	my ($self) = @_;
1290		1900
1291	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1292	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1293	}	1904	}
1294		1905
1295	sub unlink_save {	1906	sub unlink_save {
1296	my ($self) = @_;	1907	my ($self) = @_;
1297		1908
…		…
1302		1913
1303	sub load_header_from($) {	1914	sub load_header_from($) {
1304	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1305		1916
1306	utf8::encode $path;	1917	utf8::encode $path;
1307	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1308	# or return;
1309
1310	$self->_load_header ($path)
1311	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1312		1926
1313	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1314		1928
1315	1	1929	1
1316	}	1930	}
…		…
1355	$self->load_header_orig	1969	$self->load_header_orig
1356	or return;	1970	or return;
1357	$self->prepare_orig;	1971	$self->prepare_orig;
1358	}	1972	}
1359		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
		1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
1360	1	1980	1
1361	}	1981	}
1362		1982
1363	sub find;	1983	sub find;
1364	sub find {	1984	sub find {
1365	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1366		1986
1367	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1368		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1369	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1370		1991
1371	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1372	my $guard = cf::lock_acquire "map_find:$path";
1373	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1374	or return;	1994	or return;
1375		1995
1376	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1377		1997
1378	$map->load_header	1998	$map->load_header
1379	or return;	1999	or return;
1380		2000
1381	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1382	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1383	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1384	$map->reset;	2006	$map->reset;
1385	undef $guard;
1386	return find $path;	2007	return find $path;
1387	}	2008	}
1388		2009
1389	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1390	}	2011	}
…		…
1397	my ($self) = @_;	2018	my ($self) = @_;
1398		2019
1399	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1400		2021
1401	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1402	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1403		2026
		2027	return unless $self->valid;
1404	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1405		2029
1406	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1407		2031
1408	$self->alloc;	2032	$self->alloc;
1409		2033
1410	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1411		2036
1412	$self->_load_objects ($self->{load_path}, 1)	2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1413	or return;	2040	or return;
1414		2041
1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1416	if delete $self->{load_original};	2043	if delete $self->{load_original};
1417		2044
1418	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1419	utf8::encode $uniq;	2046	utf8::encode $uniq;
1420	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1421	$self->clear_unique_items;	2049	$self->clear_unique_items;
1422	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1423	}	2053	}
1424	}	2054	}
1425		2055
1426	Coro::cede;	2056	$f->resolve_delayed_derefs;
1427		2057
		2058	cf::cede_to_tick;
1428	# now do the right thing for maps	2059	# now do the right thing for maps
1429	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1430
1431	unless ($self->{deny_activate}) {
1432	$self->decay_objects;
1433	$self->fix_auto_apply;
1434	$self->update_buttons;
1435	Coro::cede;
1436	$self->set_darkness_map;
1437	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1438	unless $self->difficulty;	2062	unless $self->difficulty;
1439	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1440	$self->activate;	2070	$self->activate;
		2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1441	}	2077	}
1442		2078
1443	$self->post_load;	2079	$self->post_load;
1444
1445	$self->in_memory (cf::MAP_IN_MEMORY);
1446	}	2080	}
1447		2081
1448	sub customise_for {	2082	sub customise_for {
1449	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1450		2084
1451	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1452	if $self->per_player;	2086	if $self->per_player;
1453		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1454	$self	2091	$self
1455	}	2092	}
1456		2093
1457	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1458	sub load_diag {	2095	sub load_neighbours {
1459	my ($map) = @_;	2096	my ($map) = @_;
1460		2097
1461	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1462		2099
1463	for (0 .. 3) {	2100	for (0 .. 3) {
1464	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1465	or next;	2102	or next;
1466	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1467	or next;	2104	or next;
1468	$neigh->load;	2105	$neigh->load;
1469		2106
		2107	push @neigh,
1470	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1471	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1472	}	2110	}
1473		2111
1474	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1475	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1476	or next;	2115	or next;
1477	$neigh->load;	2116	$neigh->load;
1478	}	2117	}
1479	}	2118	}
1480		2119
…		…
1485	}	2124	}
1486		2125
1487	sub do_load_sync {	2126	sub do_load_sync {
1488	my ($map) = @_;	2127	my ($map) = @_;
1489		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1490	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1491	}	2133	}
1492		2134
1493	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1494	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1495		2137
1496	sub find_async {	2138	sub find_async {
1497	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1498		2140
1499	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1500		2142
1501	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1502	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1503	}	2145	}
1504		2146
1505	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1506	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1507	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1508	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1509	my $map = find $path	2154	if (my $map = find $k) {
1510	or next;
1511	$map->load;	2155	$map->load if $v;
		2156	}
1512		2157
1513	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1514	}	2159	}
1515	}	2160	}
1516	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1517	};	2162	};
1518	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1521	}	2166	}
1522		2167
1523	sub save {	2168	sub save {
1524	my ($self) = @_;	2169	my ($self) = @_;
1525		2170
1526	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1527		2172
1528	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1529		2174
1530	return unless $self->dirty;	2175	return unless $self->dirty;
1531		2176
…		…
1537	return if $self->{deny_save};	2182	return if $self->{deny_save};
1538		2183
1539	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1540		2185
1541	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1542	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1543	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1544		2192
1545	if ($uniq) {	2193	if ($uniq) {
1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1547	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1548	} else {	2196	} else {
…		…
1554	my ($self) = @_;	2202	my ($self) = @_;
1555		2203
1556	# save first because save cedes	2204	# save first because save cedes
1557	$self->save;	2205	$self->save;
1558		2206
1559	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1560		2208
1561	return if $self->players;	2209	return if $self->players;
1562	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1563	return if $self->{deny_save};	2211	return if $self->{deny_save};
1564		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1565	$self->clear;	2217	$self->clear;
1566	$self->in_memory (cf::MAP_SWAPPED);
1567	}	2218	}
1568		2219
1569	sub reset_at {	2220	sub reset_at {
1570	my ($self) = @_;	2221	my ($self) = @_;
1571		2222
1572	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
1574	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1575		2225
1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1578		2228
…		…
1589	my ($self) = @_;	2239	my ($self) = @_;
1590		2240
1591	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1592		2242
1593	return if $self->players;	2243	return if $self->players;
1594	return if $self->isa ("ext::map_per_player");#d#
1595		2244
1596	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1597		2246
1598	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1599		2248
1600	# need to save uniques path	2249	# need to save uniques path
1601	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1605	if $uniq;	2254	if $uniq;
1606	}	2255	}
1607		2256
1608	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1609		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1610	$self->clear;	2261	$self->clear;
1611
1612	$_->clear_links_to ($self) for values %cf::MAP;
1613		2262
1614	$self->unlink_save;	2263	$self->unlink_save;
1615	$self->destroy;	2264	$self->destroy;
1616	}	2265	}
1617		2266
1618	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1619		2268
1620	sub nuke {	2269	sub nuke {
1621	my ($self) = @_;	2270	my ($self) = @_;
1622		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1623	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1624		2276
1625	$self->unlink_save;	2277	$self->unlink_save;
1626		2278
1627	bless $self, "cf::map";	2279	bless $self, "cf::map";
1628	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1629	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1630	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1632		2284
1633	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1634		2287
1635	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1636	}	2325	}
1637		2326
1638	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1639		2328
1640	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1641	instantiated unique items. May block.	2330	instantiated unique items. May block.
1642		2331
1643	=cut	2332	=cut
1644		2333
1645	sub unique_maps() {	2334	sub unique_maps() {
1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1647	or return;	2336	map {
1648
1649	my @paths;
1650
1651	for (@$files) {
1652	utf8::decode $_;	2337	utf8::decode $_;
1653	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1654	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1655		2340	? ()
1656	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1657	}	2343	]
1658
1659	\@paths
1660	}	2344	}
1661		2345
1662	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory). May block.
		2350
		2351	=cut
		2352
		2353	sub static_maps() {
		2354	my @dirs = "";
		2355	my @maps;
		2356
		2357	while (@dirs) {
		2358	my $dir = shift @dirs;
		2359
		2360	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2361	or return;
		2362
		2363	for (@$files) {
		2364	s/\.map$// or next;
		2365	utf8::decode $_;
		2366	push @maps, "$dir/$_";
		2367	}
		2368
		2369	push @dirs, map "$dir/$_", @$dirs;
		2370	}
		2371
		2372	\@maps
		2373	}
1663		2374
1664	=back	2375	=back
1665		2376
1666	=head3 cf::object	2377	=head3 cf::object
1667		2378
…		…
1671		2382
1672	=over 4	2383	=over 4
1673		2384
1674	=item $ob->inv_recursive	2385	=item $ob->inv_recursive
1675		2386
1676	Returns the inventory of the object _and_ their inventories, recursively.	2387	Returns the inventory of the object I<and> their inventories, recursively,
		2388	but I<not> the object itself.
1677		2389
1678	=cut	2390	=cut
1679		2391
1680	sub inv_recursive_;	2392	sub inv_recursive_;
1681	sub inv_recursive_ {	2393	sub inv_recursive_ {
…		…
1684		2396
1685	sub inv_recursive {	2397	sub inv_recursive {
1686	inv_recursive_ inv $_[0]	2398	inv_recursive_ inv $_[0]
1687	}	2399	}
1688		2400
		2401	=item $ref = $ob->ref
		2402
		2403	Creates and returns a persistent reference to an object that can be stored as a string.
		2404
		2405	=item $ob = cf::object::deref ($refstring)
		2406
		2407	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2408	even if the object actually exists. May block.
		2409
		2410	=cut
		2411
		2412	sub deref {
		2413	my ($ref) = @_;
		2414
		2415	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2416	my ($uuid, $name) = ($1, $2);
		2417	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2418	or return;
		2419	$pl->ob->uuid eq $uuid
		2420	or return;
		2421
		2422	$pl->ob
		2423	} else {
		2424	warn "$ref: cannot resolve object reference\n";
		2425	undef
		2426	}
		2427	}
		2428
1689	package cf;	2429	package cf;
1690		2430
1691	=back	2431	=back
1692		2432
1693	=head3 cf::object::player	2433	=head3 cf::object::player
…		…
1699	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1700	can be C<undef>. Does the right thing when the player is currently in a	2440	can be C<undef>. Does the right thing when the player is currently in a
1701	dialogue with the given NPC character.	2441	dialogue with the given NPC character.
1702		2442
1703	=cut	2443	=cut
		2444
		2445	our $SAY_CHANNEL = {
		2446	id => "say",
		2447	title => "Map",
		2448	reply => "say ",
		2449	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2450	};
		2451
		2452	our $CHAT_CHANNEL = {
		2453	id => "chat",
		2454	title => "Chat",
		2455	reply => "chat ",
		2456	tooltip => "Player chat and shouts, global to the server.",
		2457	};
1704		2458
1705	# rough implementation of a future "reply" method that works	2459	# rough implementation of a future "reply" method that works
1706	# with dialog boxes.	2460	# with dialog boxes.
1707	#TODO: the first argument must go, split into a $npc->reply_to ( method	2461	#TODO: the first argument must go, split into a $npc->reply_to ( method
1708	sub cf::object::player::reply($$$;$) {	2462	sub cf::object::player::reply($$$;$) {
…		…
1710		2464
1711	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2465	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1712		2466
1713	if ($self->{record_replies}) {	2467	if ($self->{record_replies}) {
1714	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2468	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2469
1715	} else {	2470	} else {
		2471	my $pl = $self->contr;
		2472
		2473	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2474	my $dialog = $pl->{npc_dialog};
		2475	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2476
		2477	} else {
1716	$msg = $npc->name . " says: $msg" if $npc;	2478	$msg = $npc->name . " says: $msg" if $npc;
1717	$self->message ($msg, $flags);	2479	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2480	}
1718	}	2481	}
		2482	}
		2483
		2484	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2485
		2486	=cut
		2487
		2488	sub cf::object::send_msg {
		2489	my $pl = shift->contr
		2490	or return;
		2491	$pl->send_msg (@_);
1719	}	2492	}
1720		2493
1721	=item $player_object->may ("access")	2494	=item $player_object->may ("access")
1722		2495
1723	Returns wether the given player is authorized to access resource "access"	2496	Returns wether the given player is authorized to access resource "access"
…		…
1736		2509
1737	=item $player_object->enter_link	2510	=item $player_object->enter_link
1738		2511
1739	Freezes the player and moves him/her to a special map (C<{link}>).	2512	Freezes the player and moves him/her to a special map (C<{link}>).
1740		2513
1741	The player should be reasonably safe there for short amounts of time. You	2514	The player should be reasonably safe there for short amounts of time (e.g.
1742	I<MUST> call C<leave_link> as soon as possible, though.	2515	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2516	though, as the palyer cannot control the character while it is on the link
		2517	map.
1743		2518
1744	Will never block.	2519	Will never block.
1745		2520
1746	=item $player_object->leave_link ($map, $x, $y)	2521	=item $player_object->leave_link ($map, $x, $y)
1747		2522
…		…
1770	$self->deactivate_recursive;	2545	$self->deactivate_recursive;
1771		2546
1772	return if UNIVERSAL::isa $self->map, "ext::map_link";	2547	return if UNIVERSAL::isa $self->map, "ext::map_link";
1773		2548
1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2549	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1775	if $self->map;	2550	if $self->map && $self->map->{path} ne "{link}";
1776		2551
1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2552	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1778	}	2553	}
1779		2554
1780	sub cf::object::player::leave_link {	2555	sub cf::object::player::leave_link {
1781	my ($self, $map, $x, $y) = @_;	2556	my ($self, $map, $x, $y) = @_;
		2557
		2558	return unless $self->contr->active;
1782		2559
1783	my $link_pos = delete $self->{_link_pos};	2560	my $link_pos = delete $self->{_link_pos};
1784		2561
1785	unless ($map) {	2562	unless ($map) {
1786	# restore original map position	2563	# restore original map position
…		…
1800	# use -1 or undef as default coordinates, not 0, 0	2577	# use -1 or undef as default coordinates, not 0, 0
1801	($x, $y) = ($map->enter_x, $map->enter_y)	2578	($x, $y) = ($map->enter_x, $map->enter_y)
1802	if $x <=0 && $y <= 0;	2579	if $x <=0 && $y <= 0;
1803		2580
1804	$map->load;	2581	$map->load;
1805	$map->load_diag;	2582	$map->load_neighbours;
1806		2583
1807	return unless $self->contr->active;	2584	return unless $self->contr->active;
1808	$self->activate_recursive;
1809		2585
1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2586	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1811	$self->enter_map ($map, $x, $y);	2587	$self->enter_map ($map, $x, $y);
1812	}
1813		2588
1814	cf::player->attach (	2589	# only activate afterwards, to support waiting in hooks
1815	on_logout => sub {	2590	$self->activate_recursive;
1816	my ($pl) = @_;	2591	}
1817		2592
1818	# abort map switching before logout	2593	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1819	if ($pl->ob->{_link_pos}) {
1820	cf::sync_job {
1821	$pl->ob->leave_link
1822	};
1823	}
1824	},
1825	on_login => sub {
1826	my ($pl) = @_;
1827		2594
1828	# try to abort aborted map switching on player login :)	2595	Moves the player to the given map-path and coordinates by first freezing
1829	# should happen only on crashes	2596	her, loading and preparing them map, calling the provided $check callback
1830	if ($pl->ob->{_link_pos}) {	2597	that has to return the map if sucecssful, and then unfreezes the player on
1831	$pl->ob->enter_link;	2598	the new (success) or old (failed) map position. In either case, $done will
1832	(async {	2599	be called at the end of this process.
1833	$pl->ob->reply (undef,
1834	"There was an internal problem at your last logout, "
1835	. "the server will try to bring you to your intended destination in a second.",
1836	cf::NDI_RED);
1837	# we need this sleep as the login has a concurrent enter_exit running
1838	# and this sleep increases chances of the player not ending up in scorn
1839	Coro::Timer::sleep 1;
1840	$pl->ob->leave_link;
1841	})->prio (2);
1842	}
1843	},
1844	);
1845		2600
1846	=item $player_object->goto ($path, $x, $y)	2601	Note that $check will be called with a potentially non-loaded map, so if
		2602	it needs a loaded map it has to call C<< ->load >>.
1847		2603
1848	=cut	2604	=cut
		2605
		2606	our $GOTOGEN;
1849		2607
1850	sub cf::object::player::goto {	2608	sub cf::object::player::goto {
1851	my ($self, $path, $x, $y) = @_;	2609	my ($self, $path, $x, $y, $check, $done) = @_;
		2610
		2611	# do generation counting so two concurrent goto's will be executed in-order
		2612	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1852		2613
1853	$self->enter_link;	2614	$self->enter_link;
1854		2615
1855	(async {	2616	(async {
		2617	$Coro::current->{desc} = "player::goto $path $x $y";
		2618
		2619	# *tag paths override both path and x|y
		2620	if ($path =~ /^\*(.*)$/) {
		2621	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2622	my $ob = $obs[rand @obs];
		2623
		2624	# see if we actually can go there
		2625	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2626	$ob = $obs[rand @obs];
		2627	} else {
		2628	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2629	}
		2630	# else put us there anyways for now #d#
		2631
		2632	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2633	} else {
		2634	($path, $x, $y) = (undef, undef, undef);
		2635	}
		2636	}
		2637
1856	my $map = eval {	2638	my $map = eval {
1857	my $map = cf::map::find $path;	2639	my $map = defined $path ? cf::map::find $path : undef;
		2640
		2641	if ($map) {
1858	$map = $map->customise_for ($self) if $map;	2642	$map = $map->customise_for ($self);
		2643	$map = $check->($map) if $check && $map;
		2644	} else {
		2645	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2646	}
		2647
1859	$map	2648	$map
		2649	};
		2650
		2651	if ($@) {
		2652	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2653	LOG llevError | logBacktrace, Carp::longmess $@;
1860	} or	2654	}
1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1862		2655
		2656	if ($gen == $self->{_goto_generation}) {
		2657	delete $self->{_goto_generation};
1863	$self->leave_link ($map, $x, $y);	2658	$self->leave_link ($map, $x, $y);
		2659	}
		2660
		2661	$done->() if $done;
1864	})->prio (1);	2662	})->prio (1);
1865	}	2663	}
1866		2664
1867	=item $player_object->enter_exit ($exit_object)	2665	=item $player_object->enter_exit ($exit_object)
1868		2666
…		…
1888	}	2686	}
1889		2687
1890	sub prepare_random_map {	2688	sub prepare_random_map {
1891	my ($exit) = @_;	2689	my ($exit) = @_;
1892		2690
1893	my $guard = cf::lock_acquire "exit_prepare:$exit";
1894
1895	# all this does is basically replace the /! path by	2691	# all this does is basically replace the /! path by
1896	# a new random map path (?random/...) with a seed	2692	# a new random map path (?random/...) with a seed
1897	# that depends on the exit object	2693	# that depends on the exit object
1898		2694
1899	my $rmp = parse_random_map_params $exit->msg;	2695	my $rmp = parse_random_map_params $exit->msg;
…		…
1901	if ($exit->map) {	2697	if ($exit->map) {
1902	$rmp->{region} = $exit->region->name;	2698	$rmp->{region} = $exit->region->name;
1903	$rmp->{origin_map} = $exit->map->path;	2699	$rmp->{origin_map} = $exit->map->path;
1904	$rmp->{origin_x} = $exit->x;	2700	$rmp->{origin_x} = $exit->x;
1905	$rmp->{origin_y} = $exit->y;	2701	$rmp->{origin_y} = $exit->y;
		2702
		2703	$exit->map->touch;
1906	}	2704	}
1907		2705
1908	$rmp->{random_seed} ||= $exit->random_seed;	2706	$rmp->{random_seed} ||= $exit->random_seed;
1909		2707
1910	my $data = cf::to_json $rmp;	2708	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1911	my $md5 = Digest::MD5::md5_hex $data;	2709	my $md5 = Digest::MD5::md5_hex $data;
1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2710	my $meta = "$RANDOMDIR/$md5.meta";
1913		2711
1914	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2712	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1915	aio_write $fh, 0, (length $data), $data, 0;	2713	aio_write $fh, 0, (length $data), $data, 0;
1916	undef $fh;	2714	undef $fh;
1917	aio_rename "$meta~", $meta;	2715	aio_rename "$meta~", $meta;
1918		2716
		2717	my $slaying = "?random/$md5";
		2718
		2719	if ($exit->valid) {
1919	$exit->slaying ("?random/$md5");	2720	$exit->slaying ("?random/$md5");
1920	$exit->msg (undef);	2721	$exit->msg (undef);
		2722	}
1921	}	2723	}
1922	}	2724	}
1923		2725
1924	sub cf::object::player::enter_exit {	2726	sub cf::object::player::enter_exit {
1925	my ($self, $exit) = @_;	2727	my ($self, $exit) = @_;
1926		2728
1927	return unless $self->type == cf::PLAYER;	2729	return unless $self->type == cf::PLAYER;
1928		2730
1929	if ($exit->slaying eq "/!") {
1930	#TODO: this should de-fi-ni-te-ly not be a sync-job
1931	cf::sync_job { prepare_random_map $exit };
1932	}
1933
1934	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1935	my $hp = $exit->stats->hp;
1936	my $sp = $exit->stats->sp;
1937
1938	$self->enter_link;	2731	$self->enter_link;
1939		2732
1940	(async {	2733	(async {
1941	$self->deactivate_recursive; # just to be sure	2734	$Coro::current->{desc} = "enter_exit";
		2735
1942	unless (eval {	2736	unless (eval {
		2737	$self->deactivate_recursive; # just to be sure
		2738
		2739	# random map handling
		2740	{
		2741	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2742
		2743	prepare_random_map $exit
		2744	if $exit->slaying eq "/!";
		2745	}
		2746
		2747	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2748	my $x = $exit->stats->hp;
		2749	my $y = $exit->stats->sp;
		2750
1943	$self->goto ($slaying, $hp, $sp);	2751	$self->goto ($map, $x, $y);
1944		2752
		2753	# if exit is damned, update players death & WoR home-position
		2754	$self->contr->savebed ($map, $x, $y)
		2755	if $exit->flag (cf::FLAG_DAMNED);
		2756
1945	1;	2757	1
1946	}) {	2758	}) {
1947	$self->message ("Something went wrong deep within the crossfire server. "	2759	$self->message ("Something went wrong deep within the deliantra server. "
1948	. "I'll try to bring you back to the map you were before. "	2760	. "I'll try to bring you back to the map you were before. "
1949	. "Please report this to the dungeon master!",	2761	. "Please report this to the dungeon master!",
1950	cf::NDI_UNIQUE | cf::NDI_RED);	2762	cf::NDI_UNIQUE | cf::NDI_RED);
1951		2763
1952	warn "ERROR in enter_exit: $@";	2764	warn "ERROR in enter_exit: $@";
1953	$self->leave_link;	2765	$self->leave_link;
1954	}	2766	}
1955	})->prio (1);	2767	})->prio (1);
…		…
1968		2780
1969	sub cf::client::send_drawinfo {	2781	sub cf::client::send_drawinfo {
1970	my ($self, $text, $flags) = @_;	2782	my ($self, $text, $flags) = @_;
1971		2783
1972	utf8::encode $text;	2784	utf8::encode $text;
1973	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2785	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1974	}	2786	}
1975		2787
		2788	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2789
		2790	Send a drawinfo or msg packet to the client, formatting the msg for the
		2791	client if neccessary. C<$type> should be a string identifying the type of
		2792	the message, with C<log> being the default. If C<$color> is negative, suppress
		2793	the message unless the client supports the msg packet.
		2794
		2795	=cut
		2796
		2797	# non-persistent channels (usually the info channel)
		2798	our %CHANNEL = (
		2799	"c/motd" => {
		2800	id => "infobox",
		2801	title => "MOTD",
		2802	reply => undef,
		2803	tooltip => "The message of the day",
		2804	},
		2805	"c/identify" => {
		2806	id => "infobox",
		2807	title => "Identify",
		2808	reply => undef,
		2809	tooltip => "Items recently identified",
		2810	},
		2811	"c/examine" => {
		2812	id => "infobox",
		2813	title => "Examine",
		2814	reply => undef,
		2815	tooltip => "Signs and other items you examined",
		2816	},
		2817	"c/shopinfo" => {
		2818	id => "infobox",
		2819	title => "Shop Info",
		2820	reply => undef,
		2821	tooltip => "What your bargaining skill tells you about the shop",
		2822	},
		2823	"c/book" => {
		2824	id => "infobox",
		2825	title => "Book",
		2826	reply => undef,
		2827	tooltip => "The contents of a note or book",
		2828	},
		2829	"c/lookat" => {
		2830	id => "infobox",
		2831	title => "Look",
		2832	reply => undef,
		2833	tooltip => "What you saw there",
		2834	},
		2835	"c/who" => {
		2836	id => "infobox",
		2837	title => "Players",
		2838	reply => undef,
		2839	tooltip => "Shows players who are currently online",
		2840	},
		2841	"c/body" => {
		2842	id => "infobox",
		2843	title => "Body Parts",
		2844	reply => undef,
		2845	tooltip => "Shows which body parts you posess and are available",
		2846	},
		2847	"c/statistics" => {
		2848	id => "infobox",
		2849	title => "Statistics",
		2850	reply => undef,
		2851	tooltip => "Shows your primary statistics",
		2852	},
		2853	"c/skills" => {
		2854	id => "infobox",
		2855	title => "Skills",
		2856	reply => undef,
		2857	tooltip => "Shows your experience per skill and item power",
		2858	},
		2859	"c/shopitems" => {
		2860	id => "infobox",
		2861	title => "Shop Items",
		2862	reply => undef,
		2863	tooltip => "Shows the items currently for sale in this shop",
		2864	},
		2865	"c/resistances" => {
		2866	id => "infobox",
		2867	title => "Resistances",
		2868	reply => undef,
		2869	tooltip => "Shows your resistances",
		2870	},
		2871	"c/pets" => {
		2872	id => "infobox",
		2873	title => "Pets",
		2874	reply => undef,
		2875	tooltip => "Shows information abotu your pets/a specific pet",
		2876	},
		2877	"c/perceiveself" => {
		2878	id => "infobox",
		2879	title => "Perceive Self",
		2880	reply => undef,
		2881	tooltip => "You gained detailed knowledge about yourself",
		2882	},
		2883	"c/uptime" => {
		2884	id => "infobox",
		2885	title => "Uptime",
		2886	reply => undef,
		2887	tooltip => "How long the server has been running since last restart",
		2888	},
		2889	"c/mapinfo" => {
		2890	id => "infobox",
		2891	title => "Map Info",
		2892	reply => undef,
		2893	tooltip => "Information related to the maps",
		2894	},
		2895	"c/party" => {
		2896	id => "party",
		2897	title => "Party",
		2898	reply => "gsay ",
		2899	tooltip => "Messages and chat related to your party",
		2900	},
		2901	"c/death" => {
		2902	id => "death",
		2903	title => "Death",
		2904	reply => undef,
		2905	tooltip => "Reason for and more info about your most recent death",
		2906	},
		2907	"c/say" => $SAY_CHANNEL,
		2908	"c/chat" => $CHAT_CHANNEL,
		2909	);
		2910
		2911	sub cf::client::send_msg {
		2912	my ($self, $channel, $msg, $color, @extra) = @_;
		2913
		2914	$msg = $self->pl->expand_cfpod ($msg)
		2915	unless $color & cf::NDI_VERBATIM;
		2916
		2917	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2918
		2919	# check predefined channels, for the benefit of C
		2920	if ($CHANNEL{$channel}) {
		2921	$channel = $CHANNEL{$channel};
		2922
		2923	$self->ext_msg (channel_info => $channel);
		2924	$channel = $channel->{id};
		2925
		2926	} elsif (ref $channel) {
		2927	# send meta info to client, if not yet sent
		2928	unless (exists $self->{channel}{$channel->{id}}) {
		2929	$self->{channel}{$channel->{id}} = $channel;
		2930	$self->ext_msg (channel_info => $channel);
		2931	}
		2932
		2933	$channel = $channel->{id};
		2934	}
		2935
		2936	return unless @extra || length $msg;
		2937
		2938	# default colour, mask it out
		2939	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2940	if $color & cf::NDI_DEF;
		2941
		2942	my $pkt = "msg "
		2943	. $self->{json_coder}->encode (
		2944	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2945	);
		2946
		2947	# try lzf for large packets
		2948	$pkt = "lzf " . Compress::LZF::compress $pkt
		2949	if 1024 <= length $pkt and $self->{can_lzf};
		2950
		2951	# split very large packets
		2952	if (8192 < length $pkt and $self->{can_lzf}) {
		2953	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2954	$pkt = "frag";
		2955	}
		2956
		2957	$self->send_packet ($pkt);
		2958	}
		2959
		2960	=item $client->ext_msg ($type, @msg)
		2961
		2962	Sends an ext event to the client.
		2963
		2964	=cut
		2965
		2966	sub cf::client::ext_msg($$@) {
		2967	my ($self, $type, @msg) = @_;
		2968
		2969	if ($self->extcmd == 2) {
		2970	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2971	} elsif ($self->extcmd == 1) { # TODO: remove
		2972	push @msg, msgtype => "event_$type";
		2973	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2974	}
		2975	}
		2976
		2977	=item $client->ext_reply ($msgid, @msg)
		2978
		2979	Sends an ext reply to the client.
		2980
		2981	=cut
		2982
		2983	sub cf::client::ext_reply($$@) {
		2984	my ($self, $id, @msg) = @_;
		2985
		2986	if ($self->extcmd == 2) {
		2987	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2988	} elsif ($self->extcmd == 1) {
		2989	#TODO: version 1, remove
		2990	unshift @msg, msgtype => "reply", msgid => $id;
		2991	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
1976		2994
1977	=item $success = $client->query ($flags, "text", \&cb)	2995	=item $success = $client->query ($flags, "text", \&cb)
1978		2996
1979	Queues a query to the client, calling the given callback with	2997	Queues a query to the client, calling the given callback with
1980	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2998	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1981	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2999	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1982		3000
1983	Queries can fail, so check the return code. Or don't, as queries will become	3001	Queries can fail, so check the return code. Or don't, as queries will
1984	reliable at some point in the future.	3002	become reliable at some point in the future.
1985		3003
1986	=cut	3004	=cut
1987		3005
1988	sub cf::client::query {	3006	sub cf::client::query {
1989	my ($self, $flags, $text, $cb) = @_;	3007	my ($self, $flags, $text, $cb) = @_;
…		…
1997	utf8::encode $text;	3015	utf8::encode $text;
1998	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3016	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1999		3017
2000	$self->send_packet ($self->{query_queue}[0][0])	3018	$self->send_packet ($self->{query_queue}[0][0])
2001	if @{ $self->{query_queue} } == 1;	3019	if @{ $self->{query_queue} } == 1;
		3020
		3021	1
2002	}	3022	}
2003		3023
2004	cf::client->attach (	3024	cf::client->attach (
		3025	on_connect => sub {
		3026	my ($ns) = @_;
		3027
		3028	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3029	},
2005	on_reply => sub {	3030	on_reply => sub {
2006	my ($ns, $msg) = @_;	3031	my ($ns, $msg) = @_;
2007		3032
2008	# this weird shuffling is so that direct followup queries	3033	# this weird shuffling is so that direct followup queries
2009	# get handled first	3034	# get handled first
…		…
2021	} else {	3046	} else {
2022	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2023	}	3048	}
2024	}	3049	}
2025	},	3050	},
		3051	on_exticmd => sub {
		3052	my ($ns, $buf) = @_;
		3053
		3054	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3055
		3056	if (ref $msg) {
		3057	my ($type, $reply, @payload) =
		3058	"ARRAY" eq ref $msg
		3059	? @$msg
		3060	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3061
		3062	my @reply;
		3063
		3064	if (my $cb = $EXTICMD{$type}) {
		3065	@reply = $cb->($ns, @payload);
		3066	}
		3067
		3068	$ns->ext_reply ($reply, @reply)
		3069	if $reply;
		3070
		3071	} else {
		3072	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3073	}
		3074
		3075	cf::override;
		3076	},
2026	);	3077	);
2027		3078
2028	=item $client->async (\&cb)	3079	=item $client->async (\&cb)
2029		3080
2030	Create a new coroutine, running the specified callback. The coroutine will	3081	Create a new coroutine, running the specified callback. The coroutine will
…		…
2071	our $safe = new Safe "safe";	3122	our $safe = new Safe "safe";
2072	our $safe_hole = new Safe::Hole;	3123	our $safe_hole = new Safe::Hole;
2073		3124
2074	$SIG{FPE} = 'IGNORE';	3125	$SIG{FPE} = 'IGNORE';
2075		3126
2076	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3127	$safe->permit_only (Opcode::opset qw(
		3128	:base_core :base_mem :base_orig :base_math
		3129	grepstart grepwhile mapstart mapwhile
		3130	sort time
		3131	));
2077		3132
2078	# here we export the classes and methods available to script code	3133	# here we export the classes and methods available to script code
2079		3134
2080	=pod	3135	=pod
2081		3136
2082	The following fucntions and emthods are available within a safe environment:	3137	The following functions and methods are available within a safe environment:
2083		3138
2084	cf::object contr pay_amount pay_player map	3139	cf::object
		3140	contr pay_amount pay_player map x y force_find force_add destroy
		3141	insert remove name archname title slaying race decrease split
		3142	value
		3143
2085	cf::object::player player	3144	cf::object::player
2086	cf::player peaceful	3145	player
2087	cf::map trigger	3146
		3147	cf::player
		3148	peaceful
		3149
		3150	cf::map
		3151	trigger
2088		3152
2089	=cut	3153	=cut
2090		3154
2091	for (	3155	for (
2092	["cf::object" => qw(contr pay_amount pay_player map)],	3156	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3157	insert remove inv nrof name archname title slaying race
		3158	decrease split destroy change_exp value msg lore send_msg)],
2093	["cf::object::player" => qw(player)],	3159	["cf::object::player" => qw(player)],
2094	["cf::player" => qw(peaceful)],	3160	["cf::player" => qw(peaceful send_msg)],
2095	["cf::map" => qw(trigger)],	3161	["cf::map" => qw(trigger)],
2096	) {	3162	) {
2097	no strict 'refs';	3163	no strict 'refs';
2098	my ($pkg, @funs) = @$_;	3164	my ($pkg, @funs) = @$_;
2099	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3165	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2116	my ($code, %vars) = @_;	3182	my ($code, %vars) = @_;
2117		3183
2118	my $qcode = $code;	3184	my $qcode = $code;
2119	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3185	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2120	$qcode =~ s/\n/\\n/g;	3186	$qcode =~ s/\n/\\n/g;
		3187
		3188	%vars = (_dummy => 0) unless %vars;
2121		3189
2122	local $_;	3190	local $_;
2123	local @safe::cf::_safe_eval_args = values %vars;	3191	local @safe::cf::_safe_eval_args = values %vars;
2124		3192
2125	my $eval =	3193	my $eval =
…		…
2168	=back	3236	=back
2169		3237
2170	=cut	3238	=cut
2171		3239
2172	#############################################################################	3240	#############################################################################
2173
2174	=head2 EXTENSION DATABASE SUPPORT
2175
2176	Crossfire maintains a very simple database for extension use. It can
2177	currently store anything that can be serialised using Storable, which
2178	excludes objects.
2179
2180	The parameter C<$family> should best start with the name of the extension
2181	using it, it should be unique.
2182
2183	=over 4
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database.
2188
2189	=item cf::db_put $family => $key => $value
2190
2191	Stores the given C<$value> in the family.
2192
2193	=cut
2194
2195	our $DB;
2196
2197	sub db_init {
2198	unless ($DB) {
2199	$DB = BDB::db_create $DB_ENV;
2200
2201	cf::sync_job {
2202	eval {
2203	$DB->set_flags (BDB::CHKSUM);
2204
2205	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2206	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2207	cf::cleanup "db_open(db): $!" if $!;
2208	};
2209	cf::cleanup "db_open(db): $@" if $@;
2210	};
2211
2212	my $path = cf::localdir . "/database.pst";
2213	if (stat $path) {
2214	cf::sync_job {
2215	my $pst = Storable::retrieve $path;
2216
2217	cf::db_put (board => data => $pst->{board});
2218	cf::db_put (guildrules => data => $pst->{guildrules});
2219	cf::db_put (rent => balance => $pst->{rent}{balance});
2220	BDB::db_env_txn_checkpoint $DB_ENV;
2221
2222	unlink $path;
2223	};
2224	}
2225	}
2226	}
2227
2228	sub db_get($$) {
2229	my $key = "$_[0]/$_[1]";
2230
2231	cf::sync_job {
2232	BDB::db_get $DB, undef, $key, my $data;
2233
2234	$! ? ()
2235	: Compress::LZF::sthaw $data
2236	}
2237	}
2238
2239	sub db_put($$$) {
2240	BDB::dbreq_pri 4;
2241	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2242	}
2243
2244	#############################################################################
2245	# the server's init and main functions	3241	# the server's init and main functions
2246		3242
		3243	sub load_facedata($) {
		3244	my ($path) = @_;
		3245
		3246	# HACK to clear player env face cache, we need some signal framework
		3247	# for this (global event?)
		3248	%ext::player_env::MUSIC_FACE_CACHE = ();
		3249
		3250	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3251
		3252	warn "loading facedata from $path\n";
		3253
		3254	my $facedata;
		3255	0 < aio_load $path, $facedata
		3256	or die "$path: $!";
		3257
		3258	$facedata = Coro::Storable::thaw $facedata;
		3259
		3260	$facedata->{version} == 2
		3261	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3262
		3263	# patch in the exptable
		3264	$facedata->{resource}{"res/exp_table"} = {
		3265	type => FT_RSRC,
		3266	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3267	};
		3268	cf::cede_to_tick;
		3269
		3270	{
		3271	my $faces = $facedata->{faceinfo};
		3272
		3273	while (my ($face, $info) = each %$faces) {
		3274	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3275
		3276	cf::face::set_visibility $idx, $info->{visibility};
		3277	cf::face::set_magicmap $idx, $info->{magicmap};
		3278	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3279	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3280
		3281	cf::cede_to_tick;
		3282	}
		3283
		3284	while (my ($face, $info) = each %$faces) {
		3285	next unless $info->{smooth};
		3286
		3287	my $idx = cf::face::find $face
		3288	or next;
		3289
		3290	if (my $smooth = cf::face::find $info->{smooth}) {
		3291	cf::face::set_smooth $idx, $smooth;
		3292	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3293	} else {
		3294	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3295	}
		3296
		3297	cf::cede_to_tick;
		3298	}
		3299	}
		3300
		3301	{
		3302	my $anims = $facedata->{animinfo};
		3303
		3304	while (my ($anim, $info) = each %$anims) {
		3305	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3306	cf::cede_to_tick;
		3307	}
		3308
		3309	cf::anim::invalidate_all; # d'oh
		3310	}
		3311
		3312	{
		3313	# TODO: for gcfclient pleasure, we should give resources
		3314	# that gcfclient doesn't grok a >10000 face index.
		3315	my $res = $facedata->{resource};
		3316
		3317	while (my ($name, $info) = each %$res) {
		3318	if (defined $info->{type}) {
		3319	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3320	my $data;
		3321
		3322	if ($info->{type} & 1) {
		3323	# prepend meta info
		3324
		3325	my $meta = $enc->encode ({
		3326	name => $name,
		3327	%{ $info->{meta} || {} },
		3328	});
		3329
		3330	$data = pack "(w/a*)*", $meta, $info->{data};
		3331	} else {
		3332	$data = $info->{data};
		3333	}
		3334
		3335	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3336	cf::face::set_type $idx, $info->{type};
		3337	} else {
		3338	$RESOURCE{$name} = $info;
		3339	}
		3340
		3341	cf::cede_to_tick;
		3342	}
		3343	}
		3344
		3345	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3346
		3347	1
		3348	}
		3349
		3350	cf::global->attach (on_resource_update => sub {
		3351	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3352	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3353
		3354	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3355	my $sound = $soundconf->{compat}[$_]
		3356	or next;
		3357
		3358	my $face = cf::face::find "sound/$sound->[1]";
		3359	cf::sound::set $sound->[0] => $face;
		3360	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3361	}
		3362
		3363	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3364	my $face = cf::face::find "sound/$v";
		3365	cf::sound::set $k => $face;
		3366	}
		3367	}
		3368	});
		3369
		3370	register_exticmd fx_want => sub {
		3371	my ($ns, $want) = @_;
		3372
		3373	while (my ($k, $v) = each %$want) {
		3374	$ns->fx_want ($k, $v);
		3375	}
		3376	};
		3377
2247	sub load_resources {	3378	sub load_resource_file($) {
2248	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3379	my $guard = lock_acquire "load_resource_file";
		3380
		3381	my $status = load_resource_file_ $_[0];
		3382	get_slot 0.1, 100;
		3383	cf::arch::commit_load;
		3384
		3385	$status
		3386	}
		3387
		3388	sub reload_regions {
		3389	# HACK to clear player env face cache, we need some signal framework
		3390	# for this (global event?)
		3391	%ext::player_env::MUSIC_FACE_CACHE = ();
		3392
		3393	load_resource_file "$MAPDIR/regions"
2249	or die "unable to load regions file\n";#d#	3394	or die "unable to load regions file\n";
2250	}
2251		3395
2252	sub cfg_load {	3396	for (cf::region::list) {
		3397	$_->{match} = qr/$_->{match}/
		3398	if exists $_->{match};
		3399	}
		3400	}
		3401
		3402	sub reload_facedata {
		3403	load_facedata "$DATADIR/facedata"
		3404	or die "unable to load facedata\n";
		3405	}
		3406
		3407	sub reload_archetypes {
		3408	load_resource_file "$DATADIR/archetypes"
		3409	or die "unable to load archetypes\n";
		3410	}
		3411
		3412	sub reload_treasures {
		3413	load_resource_file "$DATADIR/treasures"
		3414	or die "unable to load treasurelists\n";
		3415	}
		3416
		3417	sub reload_resources {
		3418	warn "reloading resource files...\n";
		3419
		3420	reload_facedata;
		3421	reload_archetypes;
		3422	reload_regions;
		3423	reload_treasures;
		3424
		3425	warn "finished reloading resource files\n";
		3426	}
		3427
		3428	sub reload_config {
		3429	warn "reloading config file...\n";
		3430
2253	open my $fh, "<:utf8", cf::confdir . "/config"	3431	open my $fh, "<:utf8", "$CONFDIR/config"
2254	or return;	3432	or return;
2255		3433
2256	local $/;	3434	local $/;
2257	*CFG = YAML::Syck::Load <$fh>;	3435	*CFG = YAML::XS::Load scalar <$fh>;
2258		3436
2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3437	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2260		3438
2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3439	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3440	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3444	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2267	and die "WARNING: m(un)lockall failed: $!\n";	3445	and die "WARNING: m(un)lockall failed: $!\n";
2268	};	3446	};
2269	warn $@ if $@;	3447	warn $@ if $@;
2270	}	3448	}
2271	}
2272		3449
2273	sub init {	3450	warn "finished reloading resource files\n";
2274	load_resources;	3451	}
		3452
		3453	sub pidfile() {
		3454	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3455	or die "$PIDFILE: $!";
		3456	flock $fh, &Fcntl::LOCK_EX
		3457	or die "$PIDFILE: flock: $!";
		3458	$fh
		3459	}
		3460
		3461	# make sure only one server instance is running at any one time
		3462	sub atomic {
		3463	my $fh = pidfile;
		3464
		3465	my $pid = <$fh>;
		3466	kill 9, $pid if $pid > 0;
		3467
		3468	seek $fh, 0, 0;
		3469	print $fh $$;
		3470	}
		3471
		3472	sub main_loop {
		3473	warn "EV::loop starting\n";
		3474	if (1) {
		3475	EV::loop;
		3476	}
		3477	warn "EV::loop returned\n";
		3478	goto &main_loop unless $REALLY_UNLOOP;
2275	}	3479	}
2276		3480
2277	sub main {	3481	sub main {
		3482	cf::init_globals; # initialise logging
		3483
		3484	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3485	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3486	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3487	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3488
		3489	cf::init_experience;
		3490	cf::init_anim;
		3491	cf::init_attackmess;
		3492	cf::init_dynamic;
		3493
		3494	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3495
2278	# we must not ever block the main coroutine	3496	# we must not ever block the main coroutine
2279	local $Coro::idle = sub {	3497	local $Coro::idle = sub {
2280	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3498	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2281	(async {	3499	(async {
2282	Event::one_event;	3500	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3501	EV::loop EV::LOOP_ONESHOT;
2283	})->prio (Coro::PRIO_MAX);	3502	})->prio (Coro::PRIO_MAX);
2284	};	3503	};
2285		3504
2286	cfg_load;	3505	evthread_start IO::AIO::poll_fileno;
		3506
		3507	cf::sync_job {
		3508	reload_resources;
		3509	reload_config;
2287	db_init;	3510	db_init;
		3511
		3512	cf::load_settings;
		3513	cf::load_materials;
		3514	cf::init_uuid;
		3515	cf::init_signals;
		3516	cf::init_commands;
		3517	cf::init_skills;
		3518
		3519	cf::init_beforeplay;
		3520
		3521	atomic;
		3522
2288	load_extensions;	3523	load_extensions;
2289		3524
2290	$TICK_WATCHER->start;	3525	utime time, time, $RUNTIMEFILE;
2291	Event::loop;	3526
		3527	# no (long-running) fork's whatsoever before this point(!)
		3528	use POSIX ();
		3529	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3530
		3531	(pop @POST_INIT)->(0) while @POST_INIT;
		3532	};
		3533
		3534	main_loop;
2292	}	3535	}
2293		3536
2294	#############################################################################	3537	#############################################################################
2295	# initialisation and cleanup	3538	# initialisation and cleanup
2296		3539
2297	# install some emergency cleanup handlers	3540	# install some emergency cleanup handlers
2298	BEGIN {	3541	BEGIN {
		3542	our %SIGWATCHER = ();
2299	for my $signal (qw(INT HUP TERM)) {	3543	for my $signal (qw(INT HUP TERM)) {
2300	Event->signal (	3544	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2301	reentrant => 0,
2302	data => WF_AUTOCANCEL,
2303	signal => $signal,
2304	prio => 0,
2305	cb => sub {
2306	cf::cleanup "SIG$signal";	3545	cf::cleanup "SIG$signal";
2307	},
2308	);	3546	};
		3547	}
		3548	}
		3549
		3550	sub write_runtime_sync {
		3551	# first touch the runtime file to show we are still running:
		3552	# the fsync below can take a very very long time.
		3553
		3554	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3555
		3556	my $guard = cf::lock_acquire "write_runtime";
		3557
		3558	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3559	or return;
		3560
		3561	my $value = $cf::RUNTIME + 90 + 10;
		3562	# 10 is the runtime save interval, for a monotonic clock
		3563	# 60 allows for the watchdog to kill the server.
		3564
		3565	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3566	and return;
		3567
		3568	# always fsync - this file is important
		3569	aio_fsync $fh
		3570	and return;
		3571
		3572	# touch it again to show we are up-to-date
		3573	aio_utime $fh, undef, undef;
		3574
		3575	close $fh
		3576	or return;
		3577
		3578	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3579	and return;
		3580
		3581	warn "runtime file written.\n";
		3582
2309	}	3583	1
		3584	}
		3585
		3586	our $uuid_lock;
		3587	our $uuid_skip;
		3588
		3589	sub write_uuid_sync($) {
		3590	$uuid_skip ||= $_[0];
		3591
		3592	return if $uuid_lock;
		3593	local $uuid_lock = 1;
		3594
		3595	my $uuid = "$LOCALDIR/uuid";
		3596
		3597	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3598	or return;
		3599
		3600	my $value = uuid_seq uuid_cur;
		3601
		3602	unless ($value) {
		3603	warn "cowardly refusing to write zero uuid value!\n";
		3604	return;
		3605	}
		3606
		3607	my $value = uuid_str $value + $uuid_skip;
		3608	$uuid_skip = 0;
		3609
		3610	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3611	and return;
		3612
		3613	# always fsync - this file is important
		3614	aio_fsync $fh
		3615	and return;
		3616
		3617	close $fh
		3618	or return;
		3619
		3620	aio_rename "$uuid~", $uuid
		3621	and return;
		3622
		3623	warn "uuid file written ($value).\n";
		3624
		3625	1
		3626
		3627	}
		3628
		3629	sub write_uuid($$) {
		3630	my ($skip, $sync) = @_;
		3631
		3632	$sync ? write_uuid_sync $skip
		3633	: async { write_uuid_sync $skip };
2310	}	3634	}
2311		3635
2312	sub emergency_save() {	3636	sub emergency_save() {
2313	my $freeze_guard = cf::freeze_mainloop;	3637	my $freeze_guard = cf::freeze_mainloop;
2314		3638
2315	warn "enter emergency perl save\n";	3639	warn "emergency_perl_save: enter\n";
2316		3640
2317	cf::sync_job {	3641	cf::sync_job {
		3642	# this is a trade-off: we want to be very quick here, so
		3643	# save all maps without fsync, and later call a global sync
		3644	# (which in turn might be very very slow)
		3645	local $USE_FSYNC = 0;
		3646
2318	# use a peculiar iteration method to avoid tripping on perl	3647	# use a peculiar iteration method to avoid tripping on perl
2319	# refcount bugs in for. also avoids problems with players	3648	# refcount bugs in for. also avoids problems with players
2320	# and maps saved/destroyed asynchronously.	3649	# and maps saved/destroyed asynchronously.
2321	warn "begin emergency player save\n";	3650	warn "emergency_perl_save: begin player save\n";
2322	for my $login (keys %cf::PLAYER) {	3651	for my $login (keys %cf::PLAYER) {
2323	my $pl = $cf::PLAYER{$login} or next;	3652	my $pl = $cf::PLAYER{$login} or next;
2324	$pl->valid or next;	3653	$pl->valid or next;
		3654	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2325	$pl->save;	3655	$pl->save;
2326	}	3656	}
2327	warn "end emergency player save\n";	3657	warn "emergency_perl_save: end player save\n";
2328		3658
2329	warn "begin emergency map save\n";	3659	warn "emergency_perl_save: begin map save\n";
2330	for my $path (keys %cf::MAP) {	3660	for my $path (keys %cf::MAP) {
2331	my $map = $cf::MAP{$path} or next;	3661	my $map = $cf::MAP{$path} or next;
2332	$map->valid or next;	3662	$map->valid or next;
2333	$map->save;	3663	$map->save;
2334	}	3664	}
2335	warn "end emergency map save\n";	3665	warn "emergency_perl_save: end map save\n";
2336		3666
2337	warn "begin emergency database checkpoint\n";	3667	warn "emergency_perl_save: begin database checkpoint\n";
2338	BDB::db_env_txn_checkpoint $DB_ENV;	3668	BDB::db_env_txn_checkpoint $DB_ENV;
2339	warn "end emergency database checkpoint\n";	3669	warn "emergency_perl_save: end database checkpoint\n";
		3670
		3671	warn "emergency_perl_save: begin write uuid\n";
		3672	write_uuid_sync 1;
		3673	warn "emergency_perl_save: end write uuid\n";
2340	};	3674	};
2341		3675
		3676	warn "emergency_perl_save: starting sync()\n";
		3677	IO::AIO::aio_sync sub {
		3678	warn "emergency_perl_save: finished sync()\n";
		3679	};
		3680
2342	warn "leave emergency perl save\n";	3681	warn "emergency_perl_save: leave\n";
2343	}	3682	}
2344		3683
2345	sub post_cleanup {	3684	sub post_cleanup {
2346	my ($make_core) = @_;	3685	my ($make_core) = @_;
2347		3686
2348	warn Carp::longmess "post_cleanup backtrace"	3687	warn Carp::longmess "post_cleanup backtrace"
2349	if $make_core;	3688	if $make_core;
2350	}
2351		3689
		3690	my $fh = pidfile;
		3691	unlink $PIDFILE if <$fh> == $$;
		3692	}
		3693
		3694	# a safer delete_package, copied from Symbol
		3695	sub clear_package($) {
		3696	my $pkg = shift;
		3697
		3698	# expand to full symbol table name if needed
		3699	unless ($pkg =~ /^main::.*::$/) {
		3700	$pkg = "main$pkg" if $pkg =~ /^::/;
		3701	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3702	$pkg .= '::' unless $pkg =~ /::$/;
		3703	}
		3704
		3705	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3706	my $stem_symtab = *{$stem}{HASH};
		3707
		3708	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3709	or return;
		3710
		3711	# clear all symbols
		3712	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3713	for my $name (keys %$leaf_symtab) {
		3714	_gv_clear *{"$pkg$name"};
		3715	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3716	}
		3717	warn "cleared package $pkg\n";#d#
		3718	}
		3719
2352	sub reload() {	3720	sub do_reload_perl() {
2353	# can/must only be called in main	3721	# can/must only be called in main
2354	if ($Coro::current != $Coro::main) {	3722	if ($Coro::current != $Coro::main) {
2355	warn "can only reload from main coroutine";	3723	warn "can only reload from main coroutine";
2356	return;	3724	return;
2357	}	3725	}
2358		3726
		3727	return if $RELOAD++;
		3728
		3729	my $t1 = EV::time;
		3730
		3731	while ($RELOAD) {
2359	warn "reloading...";	3732	warn "reloading...";
2360		3733
2361	warn "entering sync_job";	3734	warn "entering sync_job";
2362		3735
2363	cf::sync_job {	3736	cf::sync_job {
2364	cf::write_runtime; # external watchdog should not bark	3737	cf::write_runtime_sync; # external watchdog should not bark
2365	cf::emergency_save;	3738	cf::emergency_save;
2366	cf::write_runtime; # external watchdog should not bark	3739	cf::write_runtime_sync; # external watchdog should not bark
2367		3740
2368	warn "syncing database to disk";	3741	warn "syncing database to disk";
2369	BDB::db_env_txn_checkpoint $DB_ENV;	3742	BDB::db_env_txn_checkpoint $DB_ENV;
2370		3743
2371	# if anything goes wrong in here, we should simply crash as we already saved	3744	# if anything goes wrong in here, we should simply crash as we already saved
2372		3745
2373	warn "cancelling all WF_AUTOCANCEL watchers";
2374	for (Event::all_watchers) {
2375	$_->cancel if $_->data & WF_AUTOCANCEL;
2376	}
2377
2378	warn "flushing outstanding aio requests";	3746	warn "flushing outstanding aio requests";
2379	for (;;) {
2380	BDB::flush;
2381	IO::AIO::flush;
2382	Coro::cede;
2383	last unless IO::AIO::nreqs || BDB::nreqs;	3747	while (IO::AIO::nreqs || BDB::nreqs) {
2384	warn "iterate...";	3748	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2385	}
2386
2387	warn "cancelling all extension coros";
2388	$_->cancel for values %EXT_CORO;
2389	%EXT_CORO = ();
2390
2391	warn "removing commands";
2392	%COMMAND = ();
2393
2394	warn "removing ext commands";
2395	%EXTCMD = ();
2396
2397	warn "unloading/nuking all extensions";
2398	for my $pkg (@EXTS) {
2399	warn "... unloading $pkg";
2400
2401	if (my $cb = $pkg->can ("unload")) {
2402	eval {
2403	$cb->($pkg);
2404	1
2405	} or warn "$pkg unloaded, but with errors: $@";
2406	}	3749	}
2407		3750
2408	warn "... nuking $pkg";	3751	warn "cancelling all extension coros";
2409	Symbol::delete_package $pkg;	3752	$_->cancel for values %EXT_CORO;
2410	}	3753	%EXT_CORO = ();
2411		3754
2412	warn "unloading all perl modules loaded from $LIBDIR";	3755	warn "removing commands";
2413	while (my ($k, $v) = each %INC) {	3756	%COMMAND = ();
2414	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2415		3757
		3758	warn "removing ext/exti commands";
		3759	%EXTCMD = ();
		3760	%EXTICMD = ();
		3761
		3762	warn "unloading/nuking all extensions";
		3763	for my $pkg (@EXTS) {
2416	warn "... unloading $k";	3764	warn "... unloading $pkg";
2417	delete $INC{$k};
2418		3765
2419	$k =~ s/\.pm$//;
2420	$k =~ s/\//::/g;
2421
2422	if (my $cb = $k->can ("unload_module")) {	3766	if (my $cb = $pkg->can ("unload")) {
		3767	eval {
2423	$cb->();	3768	$cb->($pkg);
		3769	1
		3770	} or warn "$pkg unloaded, but with errors: $@";
		3771	}
		3772
		3773	warn "... clearing $pkg";
		3774	clear_package $pkg;
2424	}	3775	}
2425		3776
2426	Symbol::delete_package $k;	3777	warn "unloading all perl modules loaded from $LIBDIR";
		3778	while (my ($k, $v) = each %INC) {
		3779	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3780
		3781	warn "... unloading $k";
		3782	delete $INC{$k};
		3783
		3784	$k =~ s/\.pm$//;
		3785	$k =~ s/\//::/g;
		3786
		3787	if (my $cb = $k->can ("unload_module")) {
		3788	$cb->();
		3789	}
		3790
		3791	clear_package $k;
2427	}	3792	}
2428		3793
2429	warn "getting rid of safe::, as good as possible";	3794	warn "getting rid of safe::, as good as possible";
2430	Symbol::delete_package "safe::$_"	3795	clear_package "safe::$_"
2431	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3796	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2432		3797
2433	warn "unloading cf.pm \"a bit\"";	3798	warn "unloading cf.pm \"a bit\"";
2434	delete $INC{"cf.pm"};	3799	delete $INC{"cf.pm"};
		3800	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2435		3801
2436	# don't, removes xs symbols, too,	3802	# don't, removes xs symbols, too,
2437	# and global variables created in xs	3803	# and global variables created in xs
2438	#Symbol::delete_package __PACKAGE__;	3804	#clear_package __PACKAGE__;
2439		3805
2440	warn "unload completed, starting to reload now";	3806	warn "unload completed, starting to reload now";
2441		3807
2442	warn "reloading cf.pm";	3808	warn "reloading cf.pm";
2443	require cf;	3809	require cf;
2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3810	cf::_connect_to_perl_1;
2445		3811
2446	warn "loading config and database again";	3812	warn "loading config and database again";
2447	cf::cfg_load;	3813	cf::reload_config;
2448		3814
2449	warn "loading extensions";	3815	warn "loading extensions";
2450	cf::load_extensions;	3816	cf::load_extensions;
2451		3817
		3818	if ($REATTACH_ON_RELOAD) {
2452	warn "reattaching attachments to objects/players";	3819	warn "reattaching attachments to objects/players";
2453	_global_reattach;	3820	_global_reattach; # objects, sockets
2454	warn "reattaching attachments to maps";	3821	warn "reattaching attachments to maps";
2455	reattach $_ for values %MAP;	3822	reattach $_ for values %MAP;
		3823	warn "reattaching attachments to players";
		3824	reattach $_ for values %PLAYER;
		3825	}
2456		3826
2457	warn "loading reloadable resources";	3827	warn "running post_init jobs";
2458	load_resources;	3828	(pop @POST_INIT)->(1) while @POST_INIT;
2459		3829
2460	warn "leaving sync_job";	3830	warn "leaving sync_job";
2461		3831
2462	1	3832	1
2463	} or do {	3833	} or do {
2464	warn $@;	3834	warn $@;
2465	warn "error while reloading, exiting.";	3835	cf::cleanup "error while reloading, exiting.";
2466	exit 1;	3836	};
		3837
		3838	warn "reloaded";
		3839	--$RELOAD;
		3840	}
		3841
		3842	$t1 = EV::time - $t1;
		3843	warn "reload completed in ${t1}s\n";
		3844	};
		3845
		3846	our $RELOAD_WATCHER; # used only during reload
		3847
		3848	sub reload_perl() {
		3849	# doing reload synchronously and two reloads happen back-to-back,
		3850	# coro crashes during coro_state_free->destroy here.
		3851
		3852	$RELOAD_WATCHER ||= cf::async {
		3853	Coro::AIO::aio_wait cache_extensions;
		3854
		3855	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3856	do_reload_perl;
		3857	undef $RELOAD_WATCHER;
		3858	};
2467	};	3859	};
2468		3860	}
2469	warn "reloaded";
2470	};
2471
2472	our $RELOAD_WATCHER; # used only during reload
2473		3861
2474	register_command "reload" => sub {	3862	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	3863	my ($who, $arg) = @_;
2476		3864
2477	if ($who->flag (FLAG_WIZ)) {	3865	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("reloading server.");	3866	$who->message ("reloading server.");
2479		3867	async {
2480	# doing reload synchronously and two reloads happen back-to-back,	3868	$Coro::current->{desc} = "perl_reload";
2481	# coro crashes during coro_state_free->destroy here.
2482
2483	$RELOAD_WATCHER ||= Event->timer (
2484	reentrant => 0,
2485	after => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => sub {
2488	reload;	3869	reload_perl;
2489	undef $RELOAD_WATCHER;
2490	},
2491	);	3870	};
2492	}	3871	}
2493	};	3872	};
2494		3873
2495	unshift @INC, $LIBDIR;	3874	unshift @INC, $LIBDIR;
2496		3875
2497	my $bug_warning = 0;	3876	my $bug_warning = 0;
2498		3877
2499	$TICK_WATCHER = Event->timer (	3878	our @WAIT_FOR_TICK;
2500	reentrant => 0,	3879	our @WAIT_FOR_TICK_BEGIN;
2501	parked => 1,	3880
2502	prio => 0,	3881	sub wait_for_tick {
2503	at => $NEXT_TICK || $TICK,	3882	return if tick_inhibit || $Coro::current == $Coro::main;
2504	data => WF_AUTOCANCEL,	3883
2505	cb => sub {	3884	my $signal = new Coro::Signal;
		3885	push @WAIT_FOR_TICK, $signal;
		3886	$signal->wait;
		3887	}
		3888
		3889	sub wait_for_tick_begin {
		3890	return if tick_inhibit || $Coro::current == $Coro::main;
		3891
		3892	my $signal = new Coro::Signal;
		3893	push @WAIT_FOR_TICK_BEGIN, $signal;
		3894	$signal->wait;
		3895	}
		3896
		3897	sub tick {
2506	if ($Coro::current != $Coro::main) {	3898	if ($Coro::current != $Coro::main) {
2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3899	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2508	unless ++$bug_warning > 10;	3900	unless ++$bug_warning > 10;
2509	return;	3901	return;
2510	}	3902	}
2511		3903
2512	$NOW = Event::time;
2513
2514	cf::server_tick; # one server iteration	3904	cf::server_tick; # one server iteration
2515	$RUNTIME += $TICK;
2516	$NEXT_TICK += $TICK;
2517		3905
2518	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3906	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2519	$NEXT_RUNTIME_WRITE = $NOW + 10;	3907	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2520	Coro::async_pool {	3908	Coro::async_pool {
		3909	$Coro::current->{desc} = "runtime saver";
2521	write_runtime	3910	write_runtime_sync
2522	or warn "ERROR: unable to write runtime file: $!";	3911	or warn "ERROR: unable to write runtime file: $!";
2523	};
2524	}	3912	};
2525
2526
2527	$WAIT_FOR_TICK->broadcast;
2528	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2529
2530	# my $AFTER = Event::time;
2531	# warn $AFTER - $NOW;#d#
2532
2533	# if we are delayed by four ticks or more, skip them all
2534	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2535
2536	$TICK_WATCHER->at ($NEXT_TICK);
2537	$TICK_WATCHER->start;
2538	},	3913	}
2539	);	3914
		3915	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3916	$sig->send;
		3917	}
		3918	while (my $sig = shift @WAIT_FOR_TICK) {
		3919	$sig->send;
		3920	}
		3921
		3922	$LOAD = ($NOW - $TICK_START) / $TICK;
		3923	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3924
		3925	if (0) {
		3926	if ($NEXT_TICK) {
		3927	my $jitter = $TICK_START - $NEXT_TICK;
		3928	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3929	warn "jitter $JITTER\n";#d#
		3930	}
		3931	}
		3932	}
2540		3933
2541	{	3934	{
2542	BDB::max_poll_time $TICK * 0.1;	3935	# configure BDB
2543	$BDB_POLL_WATCHER = Event->io (	3936
2544	reentrant => 0,
2545	fd => BDB::poll_fileno,
2546	poll => 'r',
2547	prio => 0,
2548	data => WF_AUTOCANCEL,
2549	cb => \&BDB::poll_cb,
2550	);
2551	BDB::min_parallel 8;	3937	BDB::min_parallel 8;
2552		3938	BDB::max_poll_reqs $TICK * 0.1;
2553	BDB::set_sync_prepare {	3939	$AnyEvent::BDB::WATCHER->priority (1);
2554	my $status;
2555	my $current = $Coro::current;
2556	(
2557	sub {
2558	$status = $!;
2559	$current->ready; undef $current;
2560	},
2561	sub {
2562	Coro::schedule while defined $current;
2563	$! = $status;
2564	},
2565	)
2566	};
2567		3940
2568	unless ($DB_ENV) {	3941	unless ($DB_ENV) {
2569	$DB_ENV = BDB::db_env_create;	3942	$DB_ENV = BDB::db_env_create;
		3943	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3944	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3945	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3946	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3947	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2570		3948
2571	cf::sync_job {	3949	cf::sync_job {
2572	eval {	3950	eval {
2573	BDB::db_env_open	3951	BDB::db_env_open
2574	$DB_ENV,	3952	$DB_ENV,
2575	$BDB_ENV_DIR,	3953	$BDBDIR,
2576	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3954	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2577	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3955	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2578	0666;	3956	0666;
2579		3957
2580	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3958	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2581
2582	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2583	$DB_ENV->set_lk_detect;
2584	};	3959	};
2585		3960
2586	cf::cleanup "db_env_open(db): $@" if $@;	3961	cf::cleanup "db_env_open(db): $@" if $@;
2587	};	3962	};
2588	}	3963	}
		3964
		3965	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3966	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3967	};
		3968	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3969	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3970	};
		3971	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3972	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3973	};
2589	}	3974	}
2590		3975
2591	{	3976	{
		3977	# configure IO::AIO
		3978
2592	IO::AIO::min_parallel 8;	3979	IO::AIO::min_parallel 8;
2593
2594	undef $Coro::AIO::WATCHER;
2595	IO::AIO::max_poll_time $TICK * 0.1;	3980	IO::AIO::max_poll_time $TICK * 0.1;
2596	$AIO_POLL_WATCHER = Event->io (	3981	undef $AnyEvent::AIO::WATCHER;
2597	reentrant => 0,
2598	data => WF_AUTOCANCEL,
2599	fd => IO::AIO::poll_fileno,
2600	poll => 'r',
2601	prio => 6,
2602	cb => \&IO::AIO::poll_cb,
2603	);
2604	}	3982	}
		3983
		3984	my $_log_backtrace;
		3985
		3986	sub _log_backtrace {
		3987	my ($msg, @addr) = @_;
		3988
		3989	$msg =~ s/\n//;
		3990
		3991	# limit the # of concurrent backtraces
		3992	if ($_log_backtrace < 2) {
		3993	++$_log_backtrace;
		3994	my $perl_bt = Carp::longmess $msg;
		3995	async {
		3996	$Coro::current->{desc} = "abt $msg";
		3997
		3998	my @bt = fork_call {
		3999	@addr = map { sprintf "%x", $_ } @addr;
		4000	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4001	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4002	or die "addr2line: $!";
		4003
		4004	my @funcs;
		4005	my @res = <$fh>;
		4006	chomp for @res;
		4007	while (@res) {
		4008	my ($func, $line) = splice @res, 0, 2, ();
		4009	push @funcs, "[$func] $line";
		4010	}
		4011
		4012	@funcs
		4013	};
		4014
		4015	LOG llevInfo, "[ABT] $perl_bt\n";
		4016	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4017	LOG llevInfo, "[ABT] $_\n" for @bt;
		4018	--$_log_backtrace;
		4019	};
		4020	} else {
		4021	LOG llevInfo, "[ABT] $msg\n";
		4022	LOG llevInfo, "[ABT] [suppressed]\n";
		4023	}
		4024	}
		4025
		4026	# load additional modules
		4027	require "cf/$_.pm" for @EXTRA_MODULES;
		4028	cf::_connect_to_perl_2;
2605		4029
2606	END { cf::emergency_save }	4030	END { cf::emergency_save }
2607		4031
2608	1	4032	1
2609		4033

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