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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.198 by root, Sun Jan 28 01:58:37 2007 UTC vs.
Revision 1.479 by root, Thu Oct 8 05:04:27 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
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.5 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		79
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		81
36	our %COMMAND = ();	82	our %COMMAND = ();
37	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
38		84
39	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
43		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	92	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
46		95
47	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	97	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	98	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
		111
		112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	114	our $NEXT_TICK;
52	our $NOW;	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
		119	our $BDB_TRICKLE_WATCHER;
		120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
53		123
54	our %CFG;	124	our %CFG;
55		125
56	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
58		129
59	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		133
67	# used to convert map paths into valid unix filenames by replacing / by ∕	134	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
		146
70	binmode STDOUT;	147	binmode STDOUT;
71	binmode STDERR;	148	binmode STDERR;
72		149
73	# read virtual server time, if available	150	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
78	}	155	}
79		156
80	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	158
82	mkdir cf::localdir . "/" . cf::tmpdir;	159	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		161
86	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
		163
		164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
87		173
88	#############################################################################	174	#############################################################################
89		175
90	=head2 GLOBAL VARIABLES	176	=head2 GLOBAL VARIABLES
91		177
…		…
98	=item $cf::RUNTIME	184	=item $cf::RUNTIME
99		185
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	186	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	187	every server tick.
102		188
103	=item $cf::LIBDIR	189	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		190	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		191	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		192
105	The perl library directory, where extensions and cf-specific modules can	193	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	194	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		195	unique-items directory, player file directory, random maps directory and
		196	database environment.
107		197
108	=item $cf::NOW	198	=item $cf::NOW
109		199
110	The time of the last (current) server tick.	200	The time of the last (current) server tick.
111		201
112	=item $cf::TICK	202	=item $cf::TICK
113		203
114	The interval between server ticks, in seconds.	204	The interval between server ticks, in seconds.
115		205
		206	=item $cf::LOADAVG
		207
		208	The current CPU load on the server (alpha-smoothed), as a value between 0
		209	(none) and 1 (overloaded), indicating how much time is spent on processing
		210	objects per tick. Healthy values are < 0.5.
		211
		212	=item $cf::LOAD
		213
		214	The raw value load value from the last tick.
		215
116	=item %cf::CFG	216	=item %cf::CFG
117		217
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	218	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	219	from wherever your confdir points to.
120		220
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	221	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		222
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	223	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	224	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	225	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	226
		227	=item @cf::INVOKE_RESULTS
		228
		229	This array contains the results of the last C<invoke ()> call. When
		230	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		231	that call.
		232
		233	=item %cf::REFLECT
		234
		235	Contains, for each (C++) class name, a hash reference with information
		236	about object members (methods, scalars and arrays) and other metadata,
		237	which is useful for introspection.
127		238
128	=back	239	=back
129		240
130	=cut	241	=cut
131		242
132	BEGIN {	243	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	244	my $msg = join "", @_;
135	utf8::encode $msg;
136		245
137	$msg .= "\n"	246	$msg .= "\n"
138	unless $msg =~ /\n$/;	247	unless $msg =~ /\n$/;
139		248
		249	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		250
140	LOG llevError, $msg;	251	LOG llevError, $msg;
141	};	252	};
142	}	253
		254	$Coro::State::DIEHOOK = sub {
		255	return unless $^S eq 0; # "eq", not "=="
		256
		257	warn Carp::longmess $_[0];
		258
		259	if ($Coro::current == $Coro::main) {#d#
		260	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		261	return;#d#
		262	}#d#
		263
		264	# kill coroutine otherwise
		265	Coro::terminate
		266	};
143		267
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	268	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	269	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	270	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	271	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	272	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		273	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	274	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		275
151	# we bless all objects into (empty) derived classes to force a method lookup	276	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	277	# within the Safe compartment.
153	for my $pkg (qw(	278	for my $pkg (qw(
154	cf::global cf::attachable	279	cf::global cf::attachable
155	cf::object cf::object::player	280	cf::object cf::object::player
156	cf::client cf::player	281	cf::client cf::player
157	cf::arch cf::living	282	cf::arch cf::living
		283	cf::map cf::mapspace
158	cf::map cf::party cf::region	284	cf::party cf::region
159	)) {	285	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	286	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	287	}
163		288
164	$Event::DIED = sub {	289	$EV::DIED = sub {
165	warn "error in event callback: @_";	290	warn "error in event callback: @_";
166	};	291	};
		292
		293	#############################################################################
167		294
168	=head2 UTILITY FUNCTIONS	295	=head2 UTILITY FUNCTIONS
169		296
170	=over 4	297	=over 4
171		298
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	317	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	318	$d
192	} || "[unable to dump $_[0]: '$@']";	319	} || "[unable to dump $_[0]: '$@']";
193	}	320	}
194		321
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	322	=item $ref = cf::decode_json $json
198		323
199	Converts a JSON string into the corresponding perl data structure.	324	Converts a JSON string into the corresponding perl data structure.
200		325
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	326	=item $json = cf::encode_json $ref
209		327
210	Converts a perl data structure into its JSON representation.	328	Converts a perl data structure into its JSON representation.
211		329
212	=cut	330	=cut
213		331
214	sub to_json($) {	332	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	333
216	JSON::Syck::Dump $_[0]	334	sub encode_json($) { $json_coder->encode ($_[0]) }
		335	sub decode_json($) { $json_coder->decode ($_[0]) }
		336
		337	=item cf::post_init { BLOCK }
		338
		339	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		340	but I<before> the server starts ticking again.
		341
		342	The cdoeblock will have a single boolean argument to indicate whether this
		343	is a reload or not.
		344
		345	=cut
		346
		347	sub post_init(&) {
		348	push @POST_INIT, shift;
217	}	349	}
218		350
219	=item cf::lock_wait $string	351	=item cf::lock_wait $string
220		352
221	Wait until the given lock is available. See cf::lock_acquire.	353	Wait until the given lock is available. See cf::lock_acquire.
222		354
223	=item my $lock = cf::lock_acquire $string	355	=item my $lock = cf::lock_acquire $string
224		356
225	Wait until the given lock is available and then acquires it and returns	357	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	358	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	359	for example when the coroutine gets canceled), the lock is automatically
228	returned.	360	returned.
229		361
		362	Locks are *not* recursive, locking from the same coro twice results in a
		363	deadlocked coro.
		364
230	Lock names should begin with a unique identifier (for example, cf::map::find	365	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	366	uses map_find and cf::map::load uses map_load).
232		367
233	=cut	368	=item $locked = cf::lock_active $string
234		369
235	our %LOCK;	370	Return true if the lock is currently active, i.e. somebody has locked it.
		371
		372	=cut
		373
		374	our $LOCKS = new Coro::SemaphoreSet;
236		375
237	sub lock_wait($) {	376	sub lock_wait($) {
238	my ($key) = @_;	377	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	378	}
246		379
247	sub lock_acquire($) {	380	sub lock_acquire($) {
248	my ($key) = @_;	381	$LOCKS->guard ($_[0])
		382	}
249		383
250	# wait, to be sure we are not locked	384	sub lock_active($) {
251	lock_wait $key;	385	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	386	}
260		387
261	sub freeze_mainloop {	388	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	389	tick_inhibit_inc;
263		390
264	my $guard = Coro::guard {	391	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	392	}
266	$WRITE_RUNTIME_WATCHER->start;	393
		394	=item cf::periodic $interval, $cb
		395
		396	Like EV::periodic, but randomly selects a starting point so that the actions
		397	get spread over timer.
		398
		399	=cut
		400
		401	sub periodic($$) {
		402	my ($interval, $cb) = @_;
		403
		404	my $start = rand List::Util::min 180, $interval;
		405
		406	EV::periodic $start, $interval, 0, $cb
		407	}
		408
		409	=item cf::get_slot $time[, $priority[, $name]]
		410
		411	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		412	This call blocks and returns only when you have at least C<$time> seconds
		413	of cpu time till the next tick. The slot is only valid till the next cede.
		414
		415	The optional C<$name> can be used to identify the job to run. It might be
		416	used for statistical purposes and should identify the same time-class.
		417
		418	Useful for short background jobs.
		419
		420	=cut
		421
		422	our @SLOT_QUEUE;
		423	our $SLOT_QUEUE;
		424
		425	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		426	$SLOT_QUEUE = Coro::async {
		427	$Coro::current->desc ("timeslot manager");
		428
		429	my $signal = new Coro::Signal;
		430
		431	while () {
		432	next_job:
		433	my $avail = cf::till_tick;
		434	if ($avail > 0.01) {
		435	for (0 .. $#SLOT_QUEUE) {
		436	if ($SLOT_QUEUE[$_][0] < $avail) {
		437	my $job = splice @SLOT_QUEUE, $_, 1, ();
		438	$job->[2]->send;
		439	Coro::cede;
		440	goto next_job;
		441	}
		442	}
		443	}
		444
		445	if (@SLOT_QUEUE) {
		446	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		447	push @cf::WAIT_FOR_TICK, $signal;
		448	$signal->wait;
		449	} else {
		450	Coro::schedule;
		451	}
267	};	452	}
268	$WRITE_RUNTIME_WATCHER->stop;	453	};
269	$TICK_WATCHER->stop;	454
270	$guard	455	sub get_slot($;$$) {
		456	return if tick_inhibit || $Coro::current == $Coro::main;
		457
		458	my ($time, $pri, $name) = @_;
		459
		460	$time = $TICK * .6 if $time > $TICK * .6;
		461	my $sig = new Coro::Signal;
		462
		463	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		464	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		465	$SLOT_QUEUE->ready;
		466	$sig->wait;
271	}	467	}
272		468
273	=item cf::async { BLOCK }	469	=item cf::async { BLOCK }
274		470
275	Currently the same as Coro::async_pool, meaning you cannot use	471	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		476
281	BEGIN { *async = \&Coro::async_pool }	477	BEGIN { *async = \&Coro::async_pool }
282		478
283	=item cf::sync_job { BLOCK }	479	=item cf::sync_job { BLOCK }
284		480
285	The design of crossfire+ requires that the main coro ($Coro::main) is	481	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	482	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	483	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		484	acceptable.
288		485
289	If it must be done, put the blocking parts into C<sync_job>. This will run	486	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	487	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	488	server will be frozen during this time, so the block should either finish
292	fast or be very important.	489	fast or be very important.
…		…
295		492
296	sub sync_job(&) {	493	sub sync_job(&) {
297	my ($job) = @_;	494	my ($job) = @_;
298		495
299	if ($Coro::current == $Coro::main) {	496	if ($Coro::current == $Coro::main) {
		497	my $time = EV::time;
		498
300	# this is the main coro, too bad, we have to block	499	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	500	# till the operation succeeds, freezing the server :/
302		501
303	# TODO: use suspend/resume instead	502	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	503
305	my $freeze_guard = freeze_mainloop;	504	my $freeze_guard = freeze_mainloop;
306		505
307	my $busy = 1;	506	my $busy = 1;
308	my @res;	507	my @res;
309		508
310	(async {	509	(async {
		510	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	511	@res = eval { $job->() };
312	warn $@ if $@;	512	warn $@ if $@;
313	undef $busy;	513	undef $busy;
314	})->prio (Coro::PRIO_MAX);	514	})->prio (Coro::PRIO_MAX);
315		515
316	while ($busy) {	516	while ($busy) {
317	Coro::cede or Event::one_event;	517	if (Coro::nready) {
		518	Coro::cede_notself;
		519	} else {
		520	EV::loop EV::LOOP_ONESHOT;
318	}	521	}
		522	}
		523
		524	my $time = EV::time - $time;
		525
		526	$TICK_START += $time; # do not account sync jobs to server load
319		527
320	wantarray ? @res : $res[0]	528	wantarray ? @res : $res[0]
321	} else {	529	} else {
322	# we are in another coroutine, how wonderful, everything just works	530	# we are in another coroutine, how wonderful, everything just works
323		531
…		…
343	$EXT_CORO{$coro+0} = $coro;	551	$EXT_CORO{$coro+0} = $coro;
344		552
345	$coro	553	$coro
346	}	554	}
347		555
348	sub write_runtime {	556	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		557
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	558	Executes the given code block with the given arguments in a seperate
352	or return;	559	process, returning the results. Everything must be serialisable with
		560	Coro::Storable. May, of course, block. Note that the executed sub may
		561	never block itself or use any form of event handling.
353		562
354	my $value = $cf::RUNTIME + 90 + 10;	563	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		564
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	565	sub fork_call(&@) {
359	and return;	566	my ($cb, @args) = @_;
360		567
361	aio_fsync $fh	568	# we seemingly have to make a local copy of the whole thing,
362	and return;	569	# otherwise perl prematurely frees the stuff :/
		570	# TODO: investigate and fix (likely this will be rather laborious)
363		571
364	close $fh	572	my @res = Coro::Util::fork_eval {
365	or return;	573	reset_signals;
		574	&$cb
		575	}, @args;
366		576
367	aio_rename "$runtime~", $runtime	577	wantarray ? @res : $res[-1]
368	and return;	578	}
369		579
		580	=item $coin = coin_from_name $name
		581
		582	=cut
		583
		584	our %coin_alias = (
		585	"silver" => "silvercoin",
		586	"silvercoin" => "silvercoin",
		587	"silvercoins" => "silvercoin",
		588	"gold" => "goldcoin",
		589	"goldcoin" => "goldcoin",
		590	"goldcoins" => "goldcoin",
		591	"platinum" => "platinacoin",
		592	"platinumcoin" => "platinacoin",
		593	"platinumcoins" => "platinacoin",
		594	"platina" => "platinacoin",
		595	"platinacoin" => "platinacoin",
		596	"platinacoins" => "platinacoin",
		597	"royalty" => "royalty",
		598	"royalties" => "royalty",
		599	);
		600
		601	sub coin_from_name($) {
		602	$coin_alias{$_[0]}
		603	? cf::arch::find $coin_alias{$_[0]}
		604	: undef
		605	}
		606
		607	=item $value = cf::db_get $family => $key
		608
		609	Returns a single value from the environment database.
		610
		611	=item cf::db_put $family => $key => $value
		612
		613	Stores the given C<$value> in the family. It can currently store binary
		614	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		615
		616	=item $db = cf::db_table "name"
		617
		618	Create and/or open a new database table. The string must not be "db" and must be unique
		619	within each server.
		620
		621	=cut
		622
		623	sub db_table($) {
		624	my ($name) = @_;
		625	my $db = BDB::db_create $DB_ENV;
		626
		627	eval {
		628	$db->set_flags (BDB::CHKSUM);
		629
		630	utf8::encode $name;
		631	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		632	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		633	cf::cleanup "db_open(db): $!" if $!;
		634	};
		635	cf::cleanup "db_open(db): $@" if $@;
		636
		637	$db
		638	}
		639
		640	our $DB;
		641
		642	sub db_init {
		643	cf::sync_job {
		644	$DB ||= db_table "db";
		645	};
		646	}
		647
		648	sub db_get($$) {
		649	my $key = "$_[0]/$_[1]";
		650
		651	cf::sync_job {
		652	BDB::db_get $DB, undef, $key, my $data;
		653
		654	$! ? ()
		655	: $data
370	1	656	}
		657	}
		658
		659	sub db_put($$$) {
		660	BDB::dbreq_pri 4;
		661	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		662	}
		663
		664	=item cf::cache $id => [$paths...], $processversion => $process
		665
		666	Generic caching function that returns the value of the resource $id,
		667	caching and regenerating as required.
		668
		669	This function can block.
		670
		671	=cut
		672
		673	sub cache {
		674	my ($id, $src, $processversion, $process) = @_;
		675
		676	my $meta =
		677	join "\x00",
		678	$processversion,
		679	map {
		680	aio_stat $_
		681	and Carp::croak "$_: $!";
		682
		683	($_, (stat _)[7,9])
		684	} @$src;
		685
		686	my $dbmeta = db_get cache => "$id/meta";
		687	if ($dbmeta ne $meta) {
		688	# changed, we may need to process
		689
		690	my @data;
		691	my $md5;
		692
		693	for (0 .. $#$src) {
		694	0 <= aio_load $src->[$_], $data[$_]
		695	or Carp::croak "$src->[$_]: $!";
		696	}
		697
		698	# if processing is expensive, check
		699	# checksum first
		700	if (1) {
		701	$md5 =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	cf::cede_to_tick;
		706	($src->[$_], Digest::MD5::md5_hex $data[$_])
		707	} 0.. $#$src;
		708
		709
		710	my $dbmd5 = db_get cache => "$id/md5";
		711	if ($dbmd5 eq $md5) {
		712	db_put cache => "$id/meta", $meta;
		713
		714	return db_get cache => "$id/data";
		715	}
		716	}
		717
		718	my $t1 = Time::HiRes::time;
		719	my $data = $process->(\@data);
		720	my $t2 = Time::HiRes::time;
		721
		722	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		723
		724	db_put cache => "$id/data", $data;
		725	db_put cache => "$id/md5" , $md5;
		726	db_put cache => "$id/meta", $meta;
		727
		728	return $data;
		729	}
		730
		731	db_get cache => "$id/data"
		732	}
		733
		734	=item cf::datalog type => key => value, ...
		735
		736	Log a datalog packet of the given type with the given key-value pairs.
		737
		738	=cut
		739
		740	sub datalog($@) {
		741	my ($type, %kv) = @_;
		742	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	743	}
372		744
373	=back	745	=back
374		746
375	=cut	747	=cut
376		748
377	#############################################################################	749	#############################################################################
378		750
379	=head2 ATTACHABLE OBJECTS	751	=head2 ATTACHABLE OBJECTS
380		752
381	Many objects in crossfire are so-called attachable objects. That means you can	753	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	754	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	755	to it. All such attachable objects support the following methods.
384		756
385	In the following description, CLASS can be any of C<global>, C<object>	757	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	758	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	759	Deliantra).
388		760
389	=over 4	761	=over 4
390		762
391	=item $attachable->attach ($attachment, key => $value...)	763	=item $attachable->attach ($attachment, key => $value...)
392		764
…		…
436	=item cf::CLASS::attachment $name, ...	808	=item cf::CLASS::attachment $name, ...
437		809
438	Register an attachment by C<$name> through which attachable objects of the	810	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	811	given CLASS can refer to this attachment.
440		812
441	Some classes such as crossfire maps and objects can specify attachments	813	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	814	that are attached at load/instantiate time, thus the need for a name.
443		815
444	These calls expect any number of the following handler/hook descriptions:	816	These calls expect any number of the following handler/hook descriptions:
445		817
446	=over 4	818	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	927	$registry = $CB_TYPE[$object_type] ||= [];
556		928
557	} elsif ($type eq "subtype") {	929	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	930	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	931	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	932	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		933
562	} elsif ($type eq "package") {	934	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	935	my $pkg = shift @arg;
564		936
565	while (my ($name, $id) = each %cb_id) {	937	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	966	_attach $registry, $klass, @attach;
595	}	967	}
596		968
597	$obj->{$name} = \%arg;	969	$obj->{$name} = \%arg;
598	} else {	970	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	971	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	972	}
601		973
602	$obj->{_attachment}{$name} = undef;	974	$obj->{_attachment}{$name} = undef;
603	}	975	}
604		976
…		…
606	if (ref $_[0]) {	978	if (ref $_[0]) {
607	_object_attach @_;	979	_object_attach @_;
608	} else {	980	} else {
609	_attach shift->_attach_registry, @_;	981	_attach shift->_attach_registry, @_;
610	}	982	}
		983	_recalc_want;
611	};	984	};
612		985
613	# all those should be optimised	986	# all those should be optimised
614	sub cf::attachable::detach {	987	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	988	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	991	delete $obj->{_attachment}{$name};
619	reattach ($obj);	992	reattach ($obj);
620	} else {	993	} else {
621	Carp::croak "cannot, currently, detach class attachments";	994	Carp::croak "cannot, currently, detach class attachments";
622	}	995	}
		996	_recalc_want;
623	};	997	};
624		998
625	sub cf::attachable::attached {	999	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	1000	my ($obj, $name) = @_;
627		1001
…		…
642	";	1016	";
643	die if $@;	1017	die if $@;
644	}	1018	}
645		1019
646	our $override;	1020	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1021	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1022
649	sub override {	1023	sub override {
650	$override = 1;	1024	$override = 1;
651	@invoke_results = ();	1025	@INVOKE_RESULTS = (@_);
652	}	1026	}
653		1027
654	sub do_invoke {	1028	sub do_invoke {
655	my $event = shift;	1029	my $event = shift;
656	my $callbacks = shift;	1030	my $callbacks = shift;
657		1031
658	@invoke_results = ();	1032	@INVOKE_RESULTS = ();
659		1033
660	local $override;	1034	local $override;
661		1035
662	for (@$callbacks) {	1036	for (@$callbacks) {
663	eval { &{$_->[1]} };	1037	eval { &{$_->[1]} };
…		…
672	}	1046	}
673		1047
674	0	1048	0
675	}	1049	}
676		1050
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1051	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1052
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1054
681	Generate an object-specific event with the given arguments.	1055	Generate an object-specific event with the given arguments.
682		1056
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1057	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1058	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1059	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1060
687	=back	1061	=back
688		1062
689	=cut	1063	=cut
690		1064
691	#############################################################################	1065	#############################################################################
692	# object support	1066	# object support
		1067
		1068	sub _object_equal($$);
		1069	sub _object_equal($$) {
		1070	my ($a, $b) = @_;
		1071
		1072	return 0 unless (ref $a) eq (ref $b);
		1073
		1074	if ("HASH" eq ref $a) {
		1075	my @ka = keys %$a;
		1076	my @kb = keys %$b;
		1077
		1078	return 0 if @ka != @kb;
		1079
		1080	for (0 .. $#ka) {
		1081	return 0 unless $ka[$_] eq $kb[$_];
		1082	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1083	}
		1084
		1085	} elsif ("ARRAY" eq ref $a) {
		1086
		1087	return 0 if @$a != @$b;
		1088
		1089	for (0 .. $#$a) {
		1090	return 0 unless _object_equal $a->[$_], $b->[$_];
		1091	}
		1092
		1093	} elsif ($a ne $b) {
		1094	return 0;
		1095	}
		1096
		1097	1
		1098	}
		1099
		1100	our $SLOW_MERGES;#d#
		1101	sub _can_merge {
		1102	my ($ob1, $ob2) = @_;
		1103
		1104	++$SLOW_MERGES;#d#
		1105
		1106	# we do the slow way here
		1107	return _object_equal $ob1, $ob2
		1108	}
693		1109
694	sub reattach {	1110	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1111	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1112	my ($obj) = @_;
697		1113
		1114	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1115	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1116
700	my $registry = $obj->registry;	1117	my $registry = $obj->registry;
701		1118
702	@$registry = ();	1119	@$registry = ();
703		1120
…		…
718	cf::attachable->attach (	1135	cf::attachable->attach (
719	prio => -1000000,	1136	prio => -1000000,
720	on_instantiate => sub {	1137	on_instantiate => sub {
721	my ($obj, $data) = @_;	1138	my ($obj, $data) = @_;
722		1139
723	$data = from_json $data;	1140	$data = decode_json $data;
724		1141
725	for (@$data) {	1142	for (@$data) {
726	my ($name, $args) = @$_;	1143	my ($name, $args) = @$_;
727		1144
728	$obj->attach ($name, %{$args || {} });	1145	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1161	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1162	my ($filename, $rdata, $objs) = @_;
746		1163
747	sync_job {	1164	sync_job {
748	if (length $$rdata) {	1165	if (length $$rdata) {
		1166	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1167	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1168	$decname, length $$rdata, scalar @$objs;
751		1169
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1170	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1171	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1172	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1173	if ($cf::USE_FSYNC) {
		1174	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;
755	aio_fsync $fh;	1175	aio_fsync $fh;
		1176	}
756	close $fh;	1177	aio_close $fh;
757		1178
758	if (@$objs) {	1179	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1180	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1181	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1182	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1183	aio_write $fh, 0, (length $data), $data, 0;
		1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1186	aio_fsync $fh;
		1187	}
764	close $fh;	1188	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1189	aio_rename "$filename.pst~", "$filename.pst";
766	}	1190	}
767	} else {	1191	} else {
768	aio_unlink "$filename.pst";	1192	aio_unlink "$filename.pst";
769	}	1193	}
770		1194
771	aio_rename "$filename~", $filename;	1195	aio_rename "$filename~", $filename;
		1196
		1197	$filename =~ s%/[^/]+$%%;
		1198	aio_pathsync $filename if $cf::USE_FSYNC;
772	} else {	1199	} else {
773	warn "FATAL: $filename~: $!\n";	1200	warn "unable to save objects: $filename~: $!\n";
774	}	1201	}
775	} else {	1202	} else {
776	aio_unlink $filename;	1203	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1204	aio_unlink "$filename.pst";
778	}	1205	}
779	}	1206	};
780	}	1207	}
781		1208
782	sub object_freezer_as_string {	1209	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1210	my ($rdata, $objs) = @_;
784		1211
…		…
796	or return;	1223	or return;
797		1224
798	unless (aio_stat "$filename.pst") {	1225	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1226	(aio_load "$filename.pst", $av) >= 0
800	or return;	1227	or return;
		1228
801	$av = eval { (Storable::thaw $av)->{objs} };	1229	my $st = eval { Coro::Storable::thaw $av };
		1230	$av = $st->{objs};
802	}	1231	}
803		1232
		1233	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1234	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1235	$decname, length $data, scalar @{$av || []};
		1236
806	return ($data, $av);	1237	($data, $av)
807	}	1238	}
		1239
		1240	=head2 COMMAND CALLBACKS
		1241
		1242	=over 4
		1243
		1244	=cut
808		1245
809	#############################################################################	1246	#############################################################################
810	# command handling &c	1247	# command handling &c
811		1248
812	=item cf::register_command $name => \&callback($ob,$args);	1249	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1262	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1263	}
827		1264
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1265	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1266
830	Register a callbackf ro execution when the client sends an extcmd packet.	1267	Register a callback for execution when the client sends an (synchronous)
		1268	extcmd packet. Ext commands will be processed in the order they are
		1269	received by the server, like other user commands. The first argument is
		1270	the logged-in player. Ext commands can only be processed after a player
		1271	has logged in successfully.
831		1272
832	If the callback returns something, it is sent back as if reply was being	1273	If the callback returns something, it is sent back as if reply was being
833	called.	1274	called.
834		1275
		1276	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1277
		1278	Register a callback for execution when the client sends an (asynchronous)
		1279	exticmd packet. Exti commands are processed by the server as soon as they
		1280	are received, i.e. out of order w.r.t. other commands. The first argument
		1281	is a client socket. Exti commands can be received anytime, even before
		1282	log-in.
		1283
		1284	If the callback returns something, it is sent back as if reply was being
		1285	called.
		1286
835	=cut	1287	=cut
836		1288
837	sub register_extcmd {	1289	sub register_extcmd {
838	my ($name, $cb) = @_;	1290	my ($name, $cb) = @_;
839		1291
840	$EXTCMD{$name} = $cb;	1292	$EXTCMD{$name} = $cb;
841	}	1293	}
		1294
		1295	sub register_exticmd {
		1296	my ($name, $cb) = @_;
		1297
		1298	$EXTICMD{$name} = $cb;
		1299	}
		1300
		1301	use File::Glob ();
842		1302
843	cf::player->attach (	1303	cf::player->attach (
844	on_command => sub {	1304	on_command => sub {
845	my ($pl, $name, $params) = @_;	1305	my ($pl, $name, $params) = @_;
846		1306
…		…
854	cf::override;	1314	cf::override;
855	},	1315	},
856	on_extcmd => sub {	1316	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1317	my ($pl, $buf) = @_;
858		1318
859	my $msg = eval { from_json $buf };	1319	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1320
861	if (ref $msg) {	1321	if (ref $msg) {
		1322	my ($type, $reply, @payload) =
		1323	"ARRAY" eq ref $msg
		1324	? @$msg
		1325	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1326
		1327	my @reply;
		1328
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1329	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1330	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1331	}
		1332
		1333	$pl->ext_reply ($reply, @reply)
		1334	if $reply;
		1335
867	} else {	1336	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1337	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1338	}
870		1339
871	cf::override;	1340	cf::override;
872	},	1341	},
873	);	1342	);
874		1343
		1344	# "readahead" all extensions
875	sub load_extension {	1345	sub cache_extensions {
876	my ($path) = @_;	1346	my $grp = IO::AIO::aio_group;
877		1347
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1348	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
879	my $base = $1;	1349	for (grep /\.ext$/, @{$_[0]}) {
880	my $pkg = $1;	1350	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}	1351	}
903	die $@;
904	}	1352	};
905		1353
906	push @EXTS, $pkg;	1354	$grp
907	}	1355	}
908		1356
909	sub load_extensions {	1357	sub load_extensions {
		1358	cf::sync_job {
		1359	my %todo;
		1360
910	for my $ext (<$LIBDIR/*.ext>) {	1361	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1362	next unless -r $path;
912	eval {	1363
913	load_extension $ext;	1364	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1365	my $base = $1;
		1366	my $pkg = $1;
		1367	$pkg =~ s/[^[:word:]]/_/g;
		1368	$pkg = "ext::$pkg";
		1369
		1370	open my $fh, "<:utf8", $path
		1371	or die "$path: $!";
		1372
		1373	my $source = do { local $/; <$fh> };
		1374
		1375	my %ext = (
		1376	path => $path,
		1377	base => $base,
		1378	pkg => $pkg,
		1379	);
		1380
		1381	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1382	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1383
		1384	$ext{source} =
		1385	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1386	. "#line 1 \"$path\"\n{\n"
		1387	. $source
		1388	. "\n};\n1";
		1389
		1390	$todo{$base} = \%ext;
		1391	}
		1392
		1393	my %done;
		1394	while (%todo) {
		1395	my $progress;
		1396
		1397	while (my ($k, $v) = each %todo) {
		1398	for (split /,\s*/, $v->{meta}{depends}) {
		1399	goto skip
		1400	unless exists $done{$_};
		1401	}
		1402
		1403	warn "... loading '$k' into '$v->{pkg}'\n";
		1404
		1405	unless (eval $v->{source}) {
		1406	my $msg = $@ ? "$v->{path}: $@\n"
		1407	: "$v->{base}: extension inactive.\n";
		1408
		1409	if (exists $v->{meta}{mandatory}) {
		1410	warn $msg;
		1411	cf::cleanup "mandatory extension failed to load, exiting.";
		1412	}
		1413
		1414	warn $msg;
		1415	}
		1416
		1417	$done{$k} = delete $todo{$k};
		1418	push @EXTS, $v->{pkg};
		1419	$progress = 1;
914	1	1420	}
915	} or warn "$ext not loaded: $@";	1421
		1422	skip:
		1423	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1424	unless $progress;
		1425	}
916	}	1426	};
917	}	1427	}
918		1428
919	#############################################################################	1429	#############################################################################
920		1430
		1431	=back
		1432
921	=head2 CORE EXTENSIONS	1433	=head2 CORE EXTENSIONS
922		1434
923	Functions and methods that extend core crossfire objects.	1435	Functions and methods that extend core deliantra objects.
924		1436
925	=cut	1437	=cut
926		1438
927	package cf::player;	1439	package cf::player;
928		1440
…		…
930		1442
931	=head3 cf::player	1443	=head3 cf::player
932		1444
933	=over 4	1445	=over 4
934		1446
		1447	=item cf::player::num_playing
		1448
		1449	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1450
		1451	=cut
		1452
		1453	sub num_playing {
		1454	scalar grep
		1455	$_->ob->map
		1456	&& !$_->hidden
		1457	&& !$_->ob->flag (cf::FLAG_WIZ),
		1458	cf::player::list
		1459	}
		1460
935	=item cf::player::find $login	1461	=item cf::player::find $login
936		1462
937	Returns the given player object, loading it if necessary (might block).	1463	Returns the given player object, loading it if necessary (might block).
938		1464
939	=cut	1465	=cut
940		1466
941	sub playerdir($) {	1467	sub playerdir($) {
942	cf::localdir	1468	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1469	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1470	}
948		1471
949	sub path($) {	1472	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1473	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1474
952	(playerdir $login) . "/$login.pl"	1475	(playerdir $login) . "/playerdata"
953	}	1476	}
954		1477
955	sub find_active($) {	1478	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1479	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1480	and $cf::PLAYER{$_[0]}->active
…		…
960		1483
961	sub exists($) {	1484	sub exists($) {
962	my ($login) = @_;	1485	my ($login) = @_;
963		1486
964	$cf::PLAYER{$login}	1487	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1488	or !aio_stat path $login
966	}	1489	}
967		1490
968	sub find($) {	1491	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1492	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1493	my $login = $_[0];
971		1494
972	my $guard = cf::lock_acquire "user_find:$login";	1495	my $guard = cf::lock_acquire "user_find:$login";
973		1496
974	$cf::PLAYER{$_[0]} || do {	1497	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1498	# rename old playerfiles to new ones
		1499	#TODO: remove when no longer required
		1500	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1501	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1502	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1503	aio_unlink +(playerdir $login) . "/$login.pl";
		1504
		1505	my $f = new_from_file cf::object::thawer path $login
976	or return;	1506	or return;
		1507
		1508	my $pl = cf::player::load_pl $f
		1509	or return;
		1510
		1511	local $cf::PLAYER_LOADING{$login} = $pl;
		1512	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1513	$cf::PLAYER{$login} = $pl
978	}	1514	}
979	}	1515	}
980	}	1516	}
981		1517
…		…
990	return if $pl->{deny_save};	1526	return if $pl->{deny_save};
991		1527
992	aio_mkdir playerdir $pl, 0770;	1528	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1529	$pl->{last_save} = $cf::RUNTIME;
994		1530
		1531	cf::get_slot 0.01;
		1532
995	$pl->save_pl ($path);	1533	$pl->save_pl ($path);
996	Coro::cede;	1534	cf::cede_to_tick;
997	}	1535	}
998		1536
999	sub new($) {	1537	sub new($) {
1000	my ($login) = @_;	1538	my ($login) = @_;
1001		1539
…		…
1007	$cf::PLAYER{$login} = $self;	1545	$cf::PLAYER{$login} = $self;
1008		1546
1009	$self	1547	$self
1010	}	1548	}
1011		1549
		1550	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1551
		1552	=cut
		1553
		1554	sub send_msg {
		1555	my $ns = shift->ns
		1556	or return;
		1557	$ns->send_msg (@_);
		1558	}
		1559
1012	=item $pl->quit_character	1560	=item $pl->quit_character
1013		1561
1014	Nukes the player without looking back. If logged in, the connection will	1562	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1563	be destroyed. May block for a long time.
1016		1564
1017	=cut	1565	=cut
1018		1566
1019	sub quit_character {	1567	sub quit_character {
1020	my ($pl) = @_;	1568	my ($pl) = @_;
1021		1569
		1570	my $name = $pl->ob->name;
		1571
1022	$pl->{deny_save} = 1;	1572	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1573	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1574
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1575	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1576	$pl->deactivate;
		1577	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1578	$pl->ob->check_score;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1579	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1580	$pl->ns->destroy if $pl->ns;
1029		1581
1030	my $path = playerdir $pl;	1582	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1583	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1584	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1585	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1586	$pl->destroy;
		1587
		1588	my $prefix = qr<^~\Q$name\E/>;
		1589
		1590	# nuke player maps
		1591	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1592
1035	IO::AIO::aio_rmtree $temp;	1593	IO::AIO::aio_rmtree $temp;
		1594	}
		1595
		1596	=item $pl->kick
		1597
		1598	Kicks a player out of the game. This destroys the connection.
		1599
		1600	=cut
		1601
		1602	sub kick {
		1603	my ($pl, $kicker) = @_;
		1604
		1605	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1606	$pl->killer ("kicked");
		1607	$pl->ns->destroy;
1036	}	1608	}
1037		1609
1038	=item cf::player::list_logins	1610	=item cf::player::list_logins
1039		1611
1040	Returns am arrayref of all valid playernames in the system, can take a	1612	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1613	while and may block, so not sync_job-capable, ever.
1042		1614
1043	=cut	1615	=cut
1044		1616
1045	sub list_logins {	1617	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1618	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1619	or return [];
1048		1620
1049	my @logins;	1621	my @logins;
1050		1622
1051	for my $login (@$dirs) {	1623	for my $login (@$dirs) {
		1624	my $path = path $login;
		1625
		1626	# a .pst is a dead give-away for a valid player
		1627	# if no pst file found, open and chekc for blocked users
		1628	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1629	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1630	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1631	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1632	}
1055		1633
1056	utf8::decode $login;	1634	utf8::decode $login;
1057	push @logins, $login;	1635	push @logins, $login;
1058	}	1636	}
1059		1637
…		…
1067		1645
1068	=cut	1646	=cut
1069		1647
1070	sub maps($) {	1648	sub maps($) {
1071	my ($pl) = @_;	1649	my ($pl) = @_;
		1650
		1651	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1652
1073	my $files = aio_readdir playerdir $pl	1653	my $files = aio_readdir playerdir $pl
1074	or return;	1654	or return;
1075		1655
1076	my @paths;	1656	my @paths;
…		…
1078	for (@$files) {	1658	for (@$files) {
1079	utf8::decode $_;	1659	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1660	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1661	next unless /^$PATH_SEP/o;
1082		1662
1083	s/\.map$//;	1663	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1664	}
1086		1665
1087	\@paths	1666	\@paths
1088	}	1667	}
1089		1668
		1669	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1670
		1671	Expand deliantra pod fragments into protocol xml.
		1672
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1673	=item $player->ext_reply ($msgid, @msg)
1091		1674
1092	Sends an ext reply to the player.	1675	Sends an ext reply to the player.
1093		1676
1094	=cut	1677	=cut
1095		1678
1096	sub ext_reply($$$%) {	1679	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1680	my ($self, $id, @msg) = @_;
1098		1681
1099	$msg{msgid} = $id;	1682	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1683	}
1103		1684
1104	package cf;	1685	=item $player->ext_msg ($type, @msg)
		1686
		1687	Sends an ext event to the client.
		1688
		1689	=cut
		1690
		1691	sub ext_msg($$@) {
		1692	my ($self, $type, @msg) = @_;
		1693
		1694	$self->ns->ext_msg ($type, @msg);
		1695	}
		1696
		1697	=head3 cf::region
		1698
		1699	=over 4
		1700
		1701	=cut
		1702
		1703	package cf::region;
		1704
		1705	=item cf::region::find_by_path $path
		1706
		1707	Tries to decuce the likely region for a map knowing only its path.
		1708
		1709	=cut
		1710
		1711	sub find_by_path($) {
		1712	my ($path) = @_;
		1713
		1714	my ($match, $specificity);
		1715
		1716	for my $region (list) {
		1717	if ($region->{match} && $path =~ $region->{match}) {
		1718	($match, $specificity) = ($region, $region->specificity)
		1719	if $region->specificity > $specificity;
		1720	}
		1721	}
		1722
		1723	$match
		1724	}
1105		1725
1106	=back	1726	=back
1107
1108		1727
1109	=head3 cf::map	1728	=head3 cf::map
1110		1729
1111	=over 4	1730	=over 4
1112		1731
…		…
1124	our $MAX_RESET = 3600;	1743	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1744	our $DEFAULT_RESET = 3000;
1126		1745
1127	sub generate_random_map {	1746	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1747	my ($self, $rmp) = @_;
		1748
		1749	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1750
1129	# mit "rum" bekleckern, nicht	1751	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1752	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1753	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1754	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1755	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1167	my ($self, $merge) = @_;	1789	my ($self, $merge) = @_;
1168		1790
1169	# we have to keep some variables in memory intact	1791	# we have to keep some variables in memory intact
1170	local $self->{path};	1792	local $self->{path};
1171	local $self->{load_path};	1793	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1794
1175	$self->SUPER::thawer_merge ($merge);	1795	$self->SUPER::thawer_merge ($merge);
1176	}	1796	}
1177		1797
1178	sub normalise {	1798	sub normalise {
1179	my ($path, $base) = @_;	1799	my ($path, $base) = @_;
1180		1800
1181	$path = "$path"; # make sure its a string	1801	$path = "$path"; # make sure its a string
		1802
		1803	$path =~ s/\.map$//;
1182		1804
1183	# map plan:	1805	# map plan:
1184	#	1806	#
1185	# /! non-realised random map exit (special hack!)	1807	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1808	# {... are special paths that are not being touched
…		…
1223	$self->init; # pass $1 etc.	1845	$self->init; # pass $1 etc.
1224	return $self;	1846	return $self;
1225	}	1847	}
1226	}	1848	}
1227		1849
1228	Carp::carp "unable to resolve path '$path' (base '$base').";	1850	Carp::cluck "unable to resolve path '$path' (base '$base').";
1229	()	1851	()
1230	}	1852	}
1231		1853
1232	sub init {	1854	sub init {
1233	my ($self) = @_;	1855	my ($self) = @_;
…		…
1248		1870
1249	# the original (read-only) location	1871	# the original (read-only) location
1250	sub load_path {	1872	sub load_path {
1251	my ($self) = @_;	1873	my ($self) = @_;
1252		1874
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1875	"$MAPDIR/$self->{path}.map"
1254	}	1876	}
1255		1877
1256	# the temporary/swap location	1878	# the temporary/swap location
1257	sub save_path {	1879	sub save_path {
1258	my ($self) = @_;	1880	my ($self) = @_;
1259		1881
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1882	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1883	"$TMPDIR/$path.map"
1262	}	1884	}
1263		1885
1264	# the unique path, undef == no special unique path	1886	# the unique path, undef == no special unique path
1265	sub uniq_path {	1887	sub uniq_path {
1266	my ($self) = @_;	1888	my ($self) = @_;
1267		1889
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1890	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1891	"$UNIQUEDIR/$path"
1270	}	1892	}
1271		1893
1272	# and all this just because we cannot iterate over	1894	sub decay_objects {
1273	# all maps in C++...
1274	sub change_all_map_light {
1275	my ($change) = @_;	1895	my ($self) = @_;
1276		1896
1277	$_->change_map_light ($change)	1897	return if $self->{deny_reset};
1278	for grep $_->outdoor, values %cf::MAP;	1898
		1899	$self->do_decay_objects;
1279	}	1900	}
1280		1901
1281	sub unlink_save {	1902	sub unlink_save {
1282	my ($self) = @_;	1903	my ($self) = @_;
1283		1904
…		…
1288		1909
1289	sub load_header_from($) {	1910	sub load_header_from($) {
1290	my ($self, $path) = @_;	1911	my ($self, $path) = @_;
1291		1912
1292	utf8::encode $path;	1913	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1914	my $f = new_from_file cf::object::thawer $path
1294	or return;	1915	or return;
1295		1916
1296	$self->_load_header ($path)	1917	$self->_load_header ($f)
1297	or return;	1918	or return;
		1919
		1920	local $MAP_LOADING{$self->{path}} = $self;
		1921	$f->resolve_delayed_derefs;
1298		1922
1299	$self->{load_path} = $path;	1923	$self->{load_path} = $path;
1300		1924
1301	1	1925	1
1302	}	1926	}
…		…
1341	$self->load_header_orig	1965	$self->load_header_orig
1342	or return;	1966	or return;
1343	$self->prepare_orig;	1967	$self->prepare_orig;
1344	}	1968	}
1345		1969
		1970	$self->{deny_reset} = 1
		1971	if $self->no_reset;
		1972
		1973	$self->default_region (cf::region::find_by_path $self->{path})
		1974	unless $self->default_region;
		1975
1346	1	1976	1
1347	}	1977	}
1348		1978
1349	sub find;	1979	sub find;
1350	sub find {	1980	sub find {
1351	my ($path, $origin) = @_;	1981	my ($path, $origin) = @_;
1352		1982
1353	$path = normalise $path, $origin && $origin->path;	1983	$path = normalise $path, $origin && $origin->path;
1354		1984
		1985	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1355	cf::lock_wait "map_find:$path";	1986	my $guard2 = cf::lock_acquire "map_find:$path";
1356		1987
1357	$cf::MAP{$path} || do {	1988	$cf::MAP{$path} || do {
1358	my $guard = cf::lock_acquire "map_find:$path";
1359	my $map = new_from_path cf::map $path	1989	my $map = new_from_path cf::map $path
1360	or return;	1990	or return;
1361		1991
1362	$map->{last_save} = $cf::RUNTIME;	1992	$map->{last_save} = $cf::RUNTIME;
1363		1993
1364	$map->load_header	1994	$map->load_header
1365	or return;	1995	or return;
1366		1996
1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1997	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	1998	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	1999	#$cf::WAIT_FOR_TICK->wait;
		2000	undef $guard2;
		2001	undef $guard1;
1370	$map->reset;	2002	$map->reset;
1371	undef $guard;
1372	return find $path;	2003	return find $path;
1373	}	2004	}
1374		2005
1375	$cf::MAP{$path} = $map	2006	$cf::MAP{$path} = $map
1376	}	2007	}
…		…
1383	my ($self) = @_;	2014	my ($self) = @_;
1384		2015
1385	local $self->{deny_reset} = 1; # loading can take a long time	2016	local $self->{deny_reset} = 1; # loading can take a long time
1386		2017
1387	my $path = $self->{path};	2018	my $path = $self->{path};
		2019
		2020	{
1388	my $guard = cf::lock_acquire "map_load:$path";	2021	my $guard = cf::lock_acquire "map_data:$path";
1389		2022
		2023	return unless $self->valid;
1390	return if $self->in_memory != cf::MAP_SWAPPED;	2024	return unless $self->in_memory == cf::MAP_SWAPPED;
1391		2025
1392	$self->in_memory (cf::MAP_LOADING);	2026	$self->in_memory (cf::MAP_LOADING);
1393		2027
1394	$self->alloc;	2028	$self->alloc;
1395		2029
1396	$self->pre_load;	2030	$self->pre_load;
		2031	cf::cede_to_tick;
1397		2032
1398	$self->_load_objects ($self->{load_path}, 1)	2033	my $f = new_from_file cf::object::thawer $self->{load_path};
		2034	$f->skip_block;
		2035	$self->_load_objects ($f)
1399	or return;	2036	or return;
1400		2037
1401	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2038	$self->post_load_original
1402	if delete $self->{load_original};	2039	if delete $self->{load_original};
1403		2040
1404	if (my $uniq = $self->uniq_path) {	2041	if (my $uniq = $self->uniq_path) {
1405	utf8::encode $uniq;	2042	utf8::encode $uniq;
1406	if (aio_open $uniq, O_RDONLY, 0) {	2043	unless (aio_stat $uniq) {
		2044	if (my $f = new_from_file cf::object::thawer $uniq) {
1407	$self->clear_unique_items;	2045	$self->clear_unique_items;
1408	$self->_load_objects ($uniq, 0);	2046	$self->_load_objects ($f);
		2047	$f->resolve_delayed_derefs;
		2048	}
1409	}	2049	}
1410	}	2050	}
1411		2051
1412	Coro::cede;	2052	$f->resolve_delayed_derefs;
1413		2053
		2054	cf::cede_to_tick;
1414	# now do the right thing for maps	2055	# now do the right thing for maps
1415	$self->link_multipart_objects;	2056	$self->link_multipart_objects;
1416
1417	unless ($self->{deny_activate}) {
1418	$self->decay_objects;
1419	$self->fix_auto_apply;
1420	$self->update_buttons;
1421	Coro::cede;
1422	$self->set_darkness_map;
1423	$self->difficulty ($self->estimate_difficulty)	2057	$self->difficulty ($self->estimate_difficulty)
1424	unless $self->difficulty;	2058	unless $self->difficulty;
1425	Coro::cede;	2059	cf::cede_to_tick;
		2060
		2061	unless ($self->{deny_activate}) {
		2062	$self->decay_objects;
		2063	$self->fix_auto_apply;
		2064	$self->update_buttons;
		2065	cf::cede_to_tick;
1426	$self->activate;	2066	$self->activate;
		2067	}
		2068
		2069	$self->{last_save} = $cf::RUNTIME;
		2070	$self->last_access ($cf::RUNTIME);
		2071
		2072	$self->in_memory (cf::MAP_ACTIVE);
1427	}	2073	}
1428		2074
1429	$self->post_load;	2075	$self->post_load;
1430
1431	$self->in_memory (cf::MAP_IN_MEMORY);
1432	}	2076	}
1433		2077
1434	sub customise_for {	2078	sub customise_for {
1435	my ($self, $ob) = @_;	2079	my ($self, $ob) = @_;
1436		2080
1437	return find "~" . $ob->name . "/" . $self->{path}	2081	return find "~" . $ob->name . "/" . $self->{path}
1438	if $self->per_player;	2082	if $self->per_player;
1439		2083
		2084	# return find "?party/" . $ob->name . "/" . $self->{path}
		2085	# if $self->per_party;
		2086
1440	$self	2087	$self
1441	}	2088	}
1442		2089
1443	# find and load all maps in the 3x3 area around a map	2090	# find and load all maps in the 3x3 area around a map
1444	sub load_diag {	2091	sub load_neighbours {
1445	my ($map) = @_;	2092	my ($map) = @_;
1446		2093
1447	my @diag; # diagonal neighbours	2094	my @neigh; # diagonal neighbours
1448		2095
1449	for (0 .. 3) {	2096	for (0 .. 3) {
1450	my $neigh = $map->tile_path ($_)	2097	my $neigh = $map->tile_path ($_)
1451	or next;	2098	or next;
1452	$neigh = find $neigh, $map	2099	$neigh = find $neigh, $map
1453	or next;	2100	or next;
1454	$neigh->load;	2101	$neigh->load;
1455		2102
		2103	push @neigh,
1456	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2104	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1457	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2105	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1458	}	2106	}
1459		2107
1460	for (@diag) {	2108	for (grep defined $_->[0], @neigh) {
		2109	my ($path, $origin) = @$_;
1461	my $neigh = find @$_	2110	my $neigh = find $path, $origin
1462	or next;	2111	or next;
1463	$neigh->load;	2112	$neigh->load;
1464	}	2113	}
1465	}	2114	}
1466		2115
…		…
1471	}	2120	}
1472		2121
1473	sub do_load_sync {	2122	sub do_load_sync {
1474	my ($map) = @_;	2123	my ($map) = @_;
1475		2124
		2125	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2126	if $Coro::current == $Coro::main;
		2127
1476	cf::sync_job { $map->load };	2128	cf::sync_job { $map->load };
1477	}	2129	}
1478		2130
1479	our %MAP_PREFETCH;	2131	our %MAP_PREFETCH;
1480	our $MAP_PREFETCHER = undef;	2132	our $MAP_PREFETCHER = undef;
1481		2133
1482	sub find_async {	2134	sub find_async {
1483	my ($path, $origin) = @_;	2135	my ($path, $origin, $load) = @_;
1484		2136
1485	$path = normalise $path, $origin && $origin->{path};	2137	$path = normalise $path, $origin && $origin->{path};
1486		2138
1487	if (my $map = $cf::MAP{$path}) {	2139	if (my $map = $cf::MAP{$path}) {
1488	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2140	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1489	}	2141	}
1490		2142
1491	undef $MAP_PREFETCH{$path};	2143	$MAP_PREFETCH{$path} |= $load;
		2144
1492	$MAP_PREFETCHER ||= cf::async {	2145	$MAP_PREFETCHER ||= cf::async {
		2146	$Coro::current->{desc} = "map prefetcher";
		2147
1493	while (%MAP_PREFETCH) {	2148	while (%MAP_PREFETCH) {
1494	for my $path (keys %MAP_PREFETCH) {	2149	while (my ($k, $v) = each %MAP_PREFETCH) {
1495	my $map = find $path	2150	if (my $map = find $k) {
1496	or next;
1497	$map->load;	2151	$map->load if $v;
		2152	}
1498		2153
1499	delete $MAP_PREFETCH{$path};	2154	delete $MAP_PREFETCH{$k};
1500	}	2155	}
1501	}	2156	}
1502	undef $MAP_PREFETCHER;	2157	undef $MAP_PREFETCHER;
1503	};	2158	};
1504	$MAP_PREFETCHER->prio (6);	2159	$MAP_PREFETCHER->prio (6);
…		…
1507	}	2162	}
1508		2163
1509	sub save {	2164	sub save {
1510	my ($self) = @_;	2165	my ($self) = @_;
1511		2166
1512	my $lock = cf::lock_acquire "map_data:" . $self->path;	2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
1513		2168
1514	$self->{last_save} = $cf::RUNTIME;	2169	$self->{last_save} = $cf::RUNTIME;
1515		2170
1516	return unless $self->dirty;	2171	return unless $self->dirty;
1517		2172
…		…
1523	return if $self->{deny_save};	2178	return if $self->{deny_save};
1524		2179
1525	local $self->{last_access} = $self->last_access;#d#	2180	local $self->{last_access} = $self->last_access;#d#
1526		2181
1527	cf::async {	2182	cf::async {
		2183	$Coro::current->{desc} = "map player save";
1528	$_->contr->save for $self->players;	2184	$_->contr->save for $self->players;
1529	};	2185	};
		2186
		2187	cf::get_slot 0.02;
1530		2188
1531	if ($uniq) {	2189	if ($uniq) {
1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2190	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1533	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2191	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1534	} else {	2192	} else {
…		…
1540	my ($self) = @_;	2198	my ($self) = @_;
1541		2199
1542	# save first because save cedes	2200	# save first because save cedes
1543	$self->save;	2201	$self->save;
1544		2202
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2204
1547	return if $self->players;	2205	return if $self->players;
1548	return if $self->in_memory != cf::MAP_IN_MEMORY;	2206	return if $self->in_memory != cf::MAP_ACTIVE;
1549	return if $self->{deny_save};	2207	return if $self->{deny_save};
1550		2208
		2209	$self->in_memory (cf::MAP_SWAPPED);
		2210
		2211	$self->deactivate;
		2212	$_->clear_links_to ($self) for values %cf::MAP;
1551	$self->clear;	2213	$self->clear;
1552	$self->in_memory (cf::MAP_SWAPPED);
1553	}	2214	}
1554		2215
1555	sub reset_at {	2216	sub reset_at {
1556	my ($self) = @_;	2217	my ($self) = @_;
1557		2218
1558	# TODO: safety, remove and allow resettable per-player maps	2219	# TODO: safety, remove and allow resettable per-player maps
1559	return 1e99 if $self->isa ("ext::map_per_player");#d#
1560	return 1e99 if $self->{deny_reset};	2220	return 1e99 if $self->{deny_reset};
1561		2221
1562	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2222	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1563	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2223	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1564		2224
…		…
1575	my ($self) = @_;	2235	my ($self) = @_;
1576		2236
1577	my $lock = cf::lock_acquire "map_data:$self->{path}";	2237	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2238
1579	return if $self->players;	2239	return if $self->players;
1580	return if $self->isa ("ext::map_per_player");#d#
1581		2240
1582	warn "resetting map ", $self->path;#d#	2241	warn "resetting map ", $self->path, "\n";
		2242
		2243	$self->in_memory (cf::MAP_SWAPPED);
		2244
		2245	# need to save uniques path
		2246	unless ($self->{deny_save}) {
		2247	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2248
		2249	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2250	if $uniq;
		2251	}
1583		2252
1584	delete $cf::MAP{$self->path};	2253	delete $cf::MAP{$self->path};
1585		2254
1586	$self->in_memory (cf::MAP_SWAPPED);	2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1587	$self->clear;	2257	$self->clear;
1588
1589	$_->clear_links_to ($self) for values %cf::MAP;
1590		2258
1591	$self->unlink_save;	2259	$self->unlink_save;
1592	$self->destroy;	2260	$self->destroy;
1593	}	2261	}
1594		2262
1595	my $nuke_counter = "aaaa";	2263	my $nuke_counter = "aaaa";
1596		2264
1597	sub nuke {	2265	sub nuke {
1598	my ($self) = @_;	2266	my ($self) = @_;
1599		2267
		2268	{
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
1600	delete $cf::MAP{$self->path};	2271	delete $cf::MAP{$self->path};
1601		2272
1602	$self->unlink_save;	2273	$self->unlink_save;
1603		2274
1604	bless $self, "cf::map";	2275	bless $self, "cf::map";
1605	delete $self->{deny_reset};	2276	delete $self->{deny_reset};
1606	$self->{deny_save} = 1;	2277	$self->{deny_save} = 1;
1607	$self->reset_timeout (1);	2278	$self->reset_timeout (1);
1608	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2279	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1609		2280
1610	$cf::MAP{$self->path} = $self;	2281	$cf::MAP{$self->path} = $self;
		2282	}
1611		2283
1612	$self->reset; # polite request, might not happen	2284	$self->reset; # polite request, might not happen
		2285	}
		2286
		2287	=item $maps = cf::map::tmp_maps
		2288
		2289	Returns an arrayref with all map paths of currently instantiated and saved
		2290	maps. May block.
		2291
		2292	=cut
		2293
		2294	sub tmp_maps() {
		2295	[
		2296	map {
		2297	utf8::decode $_;
		2298	/\.map$/
		2299	? normalise $_
		2300	: ()
		2301	} @{ aio_readdir $TMPDIR or [] }
		2302	]
		2303	}
		2304
		2305	=item $maps = cf::map::random_maps
		2306
		2307	Returns an arrayref with all map paths of currently instantiated and saved
		2308	random maps. May block.
		2309
		2310	=cut
		2311
		2312	sub random_maps() {
		2313	[
		2314	map {
		2315	utf8::decode $_;
		2316	/\.map$/
		2317	? normalise "?random/$_"
		2318	: ()
		2319	} @{ aio_readdir $RANDOMDIR or [] }
		2320	]
1613	}	2321	}
1614		2322
1615	=item cf::map::unique_maps	2323	=item cf::map::unique_maps
1616		2324
1617	Returns an arrayref of paths of all shared maps that have	2325	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2326	instantiated unique items. May block.
1619		2327
1620	=cut	2328	=cut
1621		2329
1622	sub unique_maps() {	2330	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2331	[
1624	or return;	2332	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2333	utf8::decode $_;
1630	next if /\.pst$/;	2334	s/\.map$//; # TODO future compatibility hack
1631	next unless /^$PATH_SEP/o;	2335	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1632		2336	? ()
1633	s/\.map$//;	2337	: normalise $_
1634	push @paths, $_;	2338	} @{ aio_readdir $UNIQUEDIR or [] }
1635	}	2339	]
1636
1637	\@paths
1638	}	2340	}
1639
1640	package cf;
1641		2341
1642	=back	2342	=back
1643		2343
1644	=head3 cf::object	2344	=head3 cf::object
1645		2345
…		…
1649		2349
1650	=over 4	2350	=over 4
1651		2351
1652	=item $ob->inv_recursive	2352	=item $ob->inv_recursive
1653		2353
1654	Returns the inventory of the object _and_ their inventories, recursively.	2354	Returns the inventory of the object I<and> their inventories, recursively,
		2355	but I<not> the object itself.
1655		2356
1656	=cut	2357	=cut
1657		2358
1658	sub inv_recursive_;	2359	sub inv_recursive_;
1659	sub inv_recursive_ {	2360	sub inv_recursive_ {
…		…
1662		2363
1663	sub inv_recursive {	2364	sub inv_recursive {
1664	inv_recursive_ inv $_[0]	2365	inv_recursive_ inv $_[0]
1665	}	2366	}
1666		2367
		2368	=item $ref = $ob->ref
		2369
		2370	Creates and returns a persistent reference to an object that can be stored as a string.
		2371
		2372	=item $ob = cf::object::deref ($refstring)
		2373
		2374	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2375	even if the object actually exists. May block.
		2376
		2377	=cut
		2378
		2379	sub deref {
		2380	my ($ref) = @_;
		2381
		2382	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2383	my ($uuid, $name) = ($1, $2);
		2384	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2385	or return;
		2386	$pl->ob->uuid eq $uuid
		2387	or return;
		2388
		2389	$pl->ob
		2390	} else {
		2391	warn "$ref: cannot resolve object reference\n";
		2392	undef
		2393	}
		2394	}
		2395
1667	package cf;	2396	package cf;
1668		2397
1669	=back	2398	=back
1670		2399
1671	=head3 cf::object::player	2400	=head3 cf::object::player
…		…
1677	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2406	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1678	can be C<undef>. Does the right thing when the player is currently in a	2407	can be C<undef>. Does the right thing when the player is currently in a
1679	dialogue with the given NPC character.	2408	dialogue with the given NPC character.
1680		2409
1681	=cut	2410	=cut
		2411
		2412	our $SAY_CHANNEL = {
		2413	id => "say",
		2414	title => "Map",
		2415	reply => "say ",
		2416	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2417	};
		2418
		2419	our $CHAT_CHANNEL = {
		2420	id => "chat",
		2421	title => "Chat",
		2422	reply => "chat ",
		2423	tooltip => "Player chat and shouts, global to the server.",
		2424	};
1682		2425
1683	# rough implementation of a future "reply" method that works	2426	# rough implementation of a future "reply" method that works
1684	# with dialog boxes.	2427	# with dialog boxes.
1685	#TODO: the first argument must go, split into a $npc->reply_to ( method	2428	#TODO: the first argument must go, split into a $npc->reply_to ( method
1686	sub cf::object::player::reply($$$;$) {	2429	sub cf::object::player::reply($$$;$) {
…		…
1688		2431
1689	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2432	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1690		2433
1691	if ($self->{record_replies}) {	2434	if ($self->{record_replies}) {
1692	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2435	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2436
1693	} else {	2437	} else {
		2438	my $pl = $self->contr;
		2439
		2440	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2441	my $dialog = $pl->{npc_dialog};
		2442	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2443
		2444	} else {
1694	$msg = $npc->name . " says: $msg" if $npc;	2445	$msg = $npc->name . " says: $msg" if $npc;
1695	$self->message ($msg, $flags);	2446	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2447	}
1696	}	2448	}
		2449	}
		2450
		2451	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2452
		2453	=cut
		2454
		2455	sub cf::object::send_msg {
		2456	my $pl = shift->contr
		2457	or return;
		2458	$pl->send_msg (@_);
1697	}	2459	}
1698		2460
1699	=item $player_object->may ("access")	2461	=item $player_object->may ("access")
1700		2462
1701	Returns wether the given player is authorized to access resource "access"	2463	Returns wether the given player is authorized to access resource "access"
…		…
1714		2476
1715	=item $player_object->enter_link	2477	=item $player_object->enter_link
1716		2478
1717	Freezes the player and moves him/her to a special map (C<{link}>).	2479	Freezes the player and moves him/her to a special map (C<{link}>).
1718		2480
1719	The player should be reasonably safe there for short amounts of time. You	2481	The player should be reasonably safe there for short amounts of time (e.g.
1720	I<MUST> call C<leave_link> as soon as possible, though.	2482	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2483	though, as the palyer cannot control the character while it is on the link
		2484	map.
1721		2485
1722	Will never block.	2486	Will never block.
1723		2487
1724	=item $player_object->leave_link ($map, $x, $y)	2488	=item $player_object->leave_link ($map, $x, $y)
1725		2489
…		…
1748	$self->deactivate_recursive;	2512	$self->deactivate_recursive;
1749		2513
1750	return if UNIVERSAL::isa $self->map, "ext::map_link";	2514	return if UNIVERSAL::isa $self->map, "ext::map_link";
1751		2515
1752	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2516	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1753	if $self->map;	2517	if $self->map && $self->map->{path} ne "{link}";
1754		2518
1755	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2519	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1756	}	2520	}
1757		2521
1758	sub cf::object::player::leave_link {	2522	sub cf::object::player::leave_link {
1759	my ($self, $map, $x, $y) = @_;	2523	my ($self, $map, $x, $y) = @_;
		2524
		2525	return unless $self->contr->active;
1760		2526
1761	my $link_pos = delete $self->{_link_pos};	2527	my $link_pos = delete $self->{_link_pos};
1762		2528
1763	unless ($map) {	2529	unless ($map) {
1764	# restore original map position	2530	# restore original map position
…		…
1778	# use -1 or undef as default coordinates, not 0, 0	2544	# use -1 or undef as default coordinates, not 0, 0
1779	($x, $y) = ($map->enter_x, $map->enter_y)	2545	($x, $y) = ($map->enter_x, $map->enter_y)
1780	if $x <=0 && $y <= 0;	2546	if $x <=0 && $y <= 0;
1781		2547
1782	$map->load;	2548	$map->load;
1783	$map->load_diag;	2549	$map->load_neighbours;
1784		2550
1785	return unless $self->contr->active;	2551	return unless $self->contr->active;
		2552
		2553	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2554	$self->enter_map ($map, $x, $y);
		2555
		2556	# only activate afterwards, to support waiting in hooks
1786	$self->activate_recursive;	2557	$self->activate_recursive;
1787	$self->enter_map ($map, $x, $y);
1788	}	2558	}
1789		2559
1790	cf::player->attach (	2560	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1791	on_logout => sub {
1792	my ($pl) = @_;
1793		2561
1794	# abort map switching before logout	2562	Moves the player to the given map-path and coordinates by first freezing
1795	if ($pl->ob->{_link_pos}) {	2563	her, loading and preparing them map, calling the provided $check callback
1796	cf::sync_job {	2564	that has to return the map if sucecssful, and then unfreezes the player on
1797	$pl->ob->leave_link	2565	the new (success) or old (failed) map position. In either case, $done will
1798	};	2566	be called at the end of this process.
1799	}
1800	},
1801	on_login => sub {
1802	my ($pl) = @_;
1803		2567
1804	# try to abort aborted map switching on player login :)	2568	Note that $check will be called with a potentially non-loaded map, so if
1805	# should happen only on crashes	2569	it needs a loaded map it has to call C<< ->load >>.
1806	if ($pl->ob->{_link_pos}) {
1807	$pl->ob->enter_link;
1808	(async {
1809	# we need this sleep as the login has a concurrent enter_exit running
1810	# and this sleep increases chances of the player not ending up in scorn
1811	$pl->ob->reply (undef,
1812	"There was an internal problem at your last logout, "
1813	. "the server will try to bring you to your intended destination in a second.",
1814	cf::NDI_RED);
1815	Coro::Timer::sleep 1;
1816	$pl->ob->leave_link;
1817	})->prio (2);
1818	}
1819	},
1820	);
1821		2570
1822	=item $player_object->goto ($path, $x, $y)
1823
1824	=cut	2571	=cut
		2572
		2573	our $GOTOGEN;
1825		2574
1826	sub cf::object::player::goto {	2575	sub cf::object::player::goto {
1827	my ($self, $path, $x, $y) = @_;	2576	my ($self, $path, $x, $y, $check, $done) = @_;
		2577
		2578	# do generation counting so two concurrent goto's will be executed in-order
		2579	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1828		2580
1829	$self->enter_link;	2581	$self->enter_link;
1830		2582
1831	(async {	2583	(async {
		2584	$Coro::current->{desc} = "player::goto $path $x $y";
		2585
		2586	# *tag paths override both path and x|y
		2587	if ($path =~ /^\*(.*)$/) {
		2588	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2589	my $ob = $obs[rand @obs];
		2590
		2591	# see if we actually can go there
		2592	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2593	$ob = $obs[rand @obs];
		2594	} else {
		2595	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	}
		2597	# else put us there anyways for now #d#
		2598
		2599	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2600	} else {
		2601	($path, $x, $y) = (undef, undef, undef);
		2602	}
		2603	}
		2604
1832	my $map = eval {	2605	my $map = eval {
1833	my $map = cf::map::find $path;	2606	my $map = defined $path ? cf::map::find $path : undef;
		2607
		2608	if ($map) {
1834	$map = $map->customise_for ($self) if $map;	2609	$map = $map->customise_for ($self);
		2610	$map = $check->($map) if $check && $map;
		2611	} else {
		2612	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2613	}
		2614
1835	$map	2615	$map
		2616	};
		2617
		2618	if ($@) {
		2619	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2620	LOG llevError | logBacktrace, Carp::longmess $@;
1836	} or	2621	}
1837	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1838		2622
		2623	if ($gen == $self->{_goto_generation}) {
		2624	delete $self->{_goto_generation};
1839	$self->leave_link ($map, $x, $y);	2625	$self->leave_link ($map, $x, $y);
		2626	}
		2627
		2628	$done->() if $done;
1840	})->prio (1);	2629	})->prio (1);
1841	}	2630	}
1842		2631
1843	=item $player_object->enter_exit ($exit_object)	2632	=item $player_object->enter_exit ($exit_object)
1844		2633
…		…
1864	}	2653	}
1865		2654
1866	sub prepare_random_map {	2655	sub prepare_random_map {
1867	my ($exit) = @_;	2656	my ($exit) = @_;
1868		2657
1869	my $guard = cf::lock_acquire "exit_prepare:$exit";
1870
1871	# all this does is basically replace the /! path by	2658	# all this does is basically replace the /! path by
1872	# a new random map path (?random/...) with a seed	2659	# a new random map path (?random/...) with a seed
1873	# that depends on the exit object	2660	# that depends on the exit object
1874		2661
1875	my $rmp = parse_random_map_params $exit->msg;	2662	my $rmp = parse_random_map_params $exit->msg;
…		…
1877	if ($exit->map) {	2664	if ($exit->map) {
1878	$rmp->{region} = $exit->region->name;	2665	$rmp->{region} = $exit->region->name;
1879	$rmp->{origin_map} = $exit->map->path;	2666	$rmp->{origin_map} = $exit->map->path;
1880	$rmp->{origin_x} = $exit->x;	2667	$rmp->{origin_x} = $exit->x;
1881	$rmp->{origin_y} = $exit->y;	2668	$rmp->{origin_y} = $exit->y;
		2669
		2670	$exit->map->touch;
1882	}	2671	}
1883		2672
1884	$rmp->{random_seed} ||= $exit->random_seed;	2673	$rmp->{random_seed} ||= $exit->random_seed;
1885		2674
1886	my $data = cf::to_json $rmp;	2675	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1887	my $md5 = Digest::MD5::md5_hex $data;	2676	my $md5 = Digest::MD5::md5_hex $data;
1888	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2677	my $meta = "$RANDOMDIR/$md5.meta";
1889		2678
1890	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2679	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1891	aio_write $fh, 0, (length $data), $data, 0;	2680	aio_write $fh, 0, (length $data), $data, 0;
1892	undef $fh;	2681	undef $fh;
1893	aio_rename "$meta~", $meta;	2682	aio_rename "$meta~", $meta;
1894		2683
		2684	my $slaying = "?random/$md5";
		2685
		2686	if ($exit->valid) {
1895	$exit->slaying ("?random/$md5");	2687	$exit->slaying ("?random/$md5");
1896	$exit->msg (undef);	2688	$exit->msg (undef);
		2689	}
1897	}	2690	}
1898	}	2691	}
1899		2692
1900	sub cf::object::player::enter_exit {	2693	sub cf::object::player::enter_exit {
1901	my ($self, $exit) = @_;	2694	my ($self, $exit) = @_;
1902		2695
1903	return unless $self->type == cf::PLAYER;	2696	return unless $self->type == cf::PLAYER;
1904		2697
1905	if ($exit->slaying eq "/!") {
1906	#TODO: this should de-fi-ni-te-ly not be a sync-job
1907	cf::sync_job { prepare_random_map $exit };
1908	}
1909
1910	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1911	my $hp = $exit->stats->hp;
1912	my $sp = $exit->stats->sp;
1913
1914	$self->enter_link;	2698	$self->enter_link;
1915		2699
1916	(async {	2700	(async {
1917	$self->deactivate_recursive; # just to be sure	2701	$Coro::current->{desc} = "enter_exit";
		2702
1918	unless (eval {	2703	unless (eval {
		2704	$self->deactivate_recursive; # just to be sure
		2705
		2706	# random map handling
		2707	{
		2708	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2709
		2710	prepare_random_map $exit
		2711	if $exit->slaying eq "/!";
		2712	}
		2713
		2714	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2715	my $x = $exit->stats->hp;
		2716	my $y = $exit->stats->sp;
		2717
1919	$self->goto ($slaying, $hp, $sp);	2718	$self->goto ($map, $x, $y);
1920		2719
		2720	# if exit is damned, update players death & WoR home-position
		2721	$self->contr->savebed ($map, $x, $y)
		2722	if $exit->flag (cf::FLAG_DAMNED);
		2723
1921	1;	2724	1
1922	}) {	2725	}) {
1923	$self->message ("Something went wrong deep within the crossfire server. "	2726	$self->message ("Something went wrong deep within the deliantra server. "
1924	. "I'll try to bring you back to the map you were before. "	2727	. "I'll try to bring you back to the map you were before. "
1925	. "Please report this to the dungeon master!",	2728	. "Please report this to the dungeon master!",
1926	cf::NDI_UNIQUE | cf::NDI_RED);	2729	cf::NDI_UNIQUE | cf::NDI_RED);
1927		2730
1928	warn "ERROR in enter_exit: $@";	2731	warn "ERROR in enter_exit: $@";
1929	$self->leave_link;	2732	$self->leave_link;
1930	}	2733	}
1931	})->prio (1);	2734	})->prio (1);
…		…
1944		2747
1945	sub cf::client::send_drawinfo {	2748	sub cf::client::send_drawinfo {
1946	my ($self, $text, $flags) = @_;	2749	my ($self, $text, $flags) = @_;
1947		2750
1948	utf8::encode $text;	2751	utf8::encode $text;
1949	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2752	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1950	}	2753	}
1951		2754
		2755	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2756
		2757	Send a drawinfo or msg packet to the client, formatting the msg for the
		2758	client if neccessary. C<$type> should be a string identifying the type of
		2759	the message, with C<log> being the default. If C<$color> is negative, suppress
		2760	the message unless the client supports the msg packet.
		2761
		2762	=cut
		2763
		2764	# non-persistent channels (usually the info channel)
		2765	our %CHANNEL = (
		2766	"c/identify" => {
		2767	id => "infobox",
		2768	title => "Identify",
		2769	reply => undef,
		2770	tooltip => "Items recently identified",
		2771	},
		2772	"c/examine" => {
		2773	id => "infobox",
		2774	title => "Examine",
		2775	reply => undef,
		2776	tooltip => "Signs and other items you examined",
		2777	},
		2778	"c/book" => {
		2779	id => "infobox",
		2780	title => "Book",
		2781	reply => undef,
		2782	tooltip => "The contents of a note or book",
		2783	},
		2784	"c/lookat" => {
		2785	id => "infobox",
		2786	title => "Look",
		2787	reply => undef,
		2788	tooltip => "What you saw there",
		2789	},
		2790	"c/who" => {
		2791	id => "infobox",
		2792	title => "Players",
		2793	reply => undef,
		2794	tooltip => "Shows players who are currently online",
		2795	},
		2796	"c/body" => {
		2797	id => "infobox",
		2798	title => "Body Parts",
		2799	reply => undef,
		2800	tooltip => "Shows which body parts you posess and are available",
		2801	},
		2802	"c/statistics" => {
		2803	id => "infobox",
		2804	title => "Statistics",
		2805	reply => undef,
		2806	tooltip => "Shows your primary statistics",
		2807	},
		2808	"c/skills" => {
		2809	id => "infobox",
		2810	title => "Skills",
		2811	reply => undef,
		2812	tooltip => "Shows your experience per skill and item power",
		2813	},
		2814	"c/shopitems" => {
		2815	id => "infobox",
		2816	title => "Shop Items",
		2817	reply => undef,
		2818	tooltip => "Shows the items currently for sale in this shop",
		2819	},
		2820	"c/resistances" => {
		2821	id => "infobox",
		2822	title => "Resistances",
		2823	reply => undef,
		2824	tooltip => "Shows your resistances",
		2825	},
		2826	"c/pets" => {
		2827	id => "infobox",
		2828	title => "Pets",
		2829	reply => undef,
		2830	tooltip => "Shows information abotu your pets/a specific pet",
		2831	},
		2832	"c/perceiveself" => {
		2833	id => "infobox",
		2834	title => "Perceive Self",
		2835	reply => undef,
		2836	tooltip => "You gained detailed knowledge about yourself",
		2837	},
		2838	"c/uptime" => {
		2839	id => "infobox",
		2840	title => "Uptime",
		2841	reply => undef,
		2842	tooltip => "How long the server has been running since last restart",
		2843	},
		2844	"c/mapinfo" => {
		2845	id => "infobox",
		2846	title => "Map Info",
		2847	reply => undef,
		2848	tooltip => "Information related to the maps",
		2849	},
		2850	"c/party" => {
		2851	id => "party",
		2852	title => "Party",
		2853	reply => "gsay ",
		2854	tooltip => "Messages and chat related to your party",
		2855	},
		2856	"c/death" => {
		2857	id => "death",
		2858	title => "Death",
		2859	reply => undef,
		2860	tooltip => "Reason for and more info about your most recent death",
		2861	},
		2862	"c/say" => $SAY_CHANNEL,
		2863	"c/chat" => $CHAT_CHANNEL,
		2864	);
		2865
		2866	sub cf::client::send_msg {
		2867	my ($self, $channel, $msg, $color, @extra) = @_;
		2868
		2869	$msg = $self->pl->expand_cfpod ($msg)
		2870	unless $color & cf::NDI_VERBATIM;
		2871
		2872	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2873
		2874	# check predefined channels, for the benefit of C
		2875	if ($CHANNEL{$channel}) {
		2876	$channel = $CHANNEL{$channel};
		2877
		2878	$self->ext_msg (channel_info => $channel);
		2879	$channel = $channel->{id};
		2880
		2881	} elsif (ref $channel) {
		2882	# send meta info to client, if not yet sent
		2883	unless (exists $self->{channel}{$channel->{id}}) {
		2884	$self->{channel}{$channel->{id}} = $channel;
		2885	$self->ext_msg (channel_info => $channel);
		2886	}
		2887
		2888	$channel = $channel->{id};
		2889	}
		2890
		2891	return unless @extra || length $msg;
		2892
		2893	# default colour, mask it out
		2894	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2895	if $color & cf::NDI_DEF;
		2896
		2897	my $pkt = "msg "
		2898	. $self->{json_coder}->encode (
		2899	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2900	);
		2901
		2902	# try lzf for large packets
		2903	$pkt = "lzf " . Compress::LZF::compress $pkt
		2904	if 1024 <= length $pkt and $self->{can_lzf};
		2905
		2906	# split very large packets
		2907	if (8192 < length $pkt and $self->{can_lzf}) {
		2908	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2909	$pkt = "frag";
		2910	}
		2911
		2912	$self->send_packet ($pkt);
		2913	}
		2914
		2915	=item $client->ext_msg ($type, @msg)
		2916
		2917	Sends an ext event to the client.
		2918
		2919	=cut
		2920
		2921	sub cf::client::ext_msg($$@) {
		2922	my ($self, $type, @msg) = @_;
		2923
		2924	if ($self->extcmd == 2) {
		2925	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2926	} elsif ($self->extcmd == 1) { # TODO: remove
		2927	push @msg, msgtype => "event_$type";
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2929	}
		2930	}
		2931
		2932	=item $client->ext_reply ($msgid, @msg)
		2933
		2934	Sends an ext reply to the client.
		2935
		2936	=cut
		2937
		2938	sub cf::client::ext_reply($$@) {
		2939	my ($self, $id, @msg) = @_;
		2940
		2941	if ($self->extcmd == 2) {
		2942	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2943	} elsif ($self->extcmd == 1) {
		2944	#TODO: version 1, remove
		2945	unshift @msg, msgtype => "reply", msgid => $id;
		2946	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2947	}
		2948	}
1952		2949
1953	=item $success = $client->query ($flags, "text", \&cb)	2950	=item $success = $client->query ($flags, "text", \&cb)
1954		2951
1955	Queues a query to the client, calling the given callback with	2952	Queues a query to the client, calling the given callback with
1956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2953	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2954	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1958		2955
1959	Queries can fail, so check the return code. Or don't, as queries will become	2956	Queries can fail, so check the return code. Or don't, as queries will
1960	reliable at some point in the future.	2957	become reliable at some point in the future.
1961		2958
1962	=cut	2959	=cut
1963		2960
1964	sub cf::client::query {	2961	sub cf::client::query {
1965	my ($self, $flags, $text, $cb) = @_;	2962	my ($self, $flags, $text, $cb) = @_;
…		…
1973	utf8::encode $text;	2970	utf8::encode $text;
1974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2971	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1975		2972
1976	$self->send_packet ($self->{query_queue}[0][0])	2973	$self->send_packet ($self->{query_queue}[0][0])
1977	if @{ $self->{query_queue} } == 1;	2974	if @{ $self->{query_queue} } == 1;
		2975
		2976	1
1978	}	2977	}
1979		2978
1980	cf::client->attach (	2979	cf::client->attach (
		2980	on_connect => sub {
		2981	my ($ns) = @_;
		2982
		2983	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2984	},
1981	on_reply => sub {	2985	on_reply => sub {
1982	my ($ns, $msg) = @_;	2986	my ($ns, $msg) = @_;
1983		2987
1984	# this weird shuffling is so that direct followup queries	2988	# this weird shuffling is so that direct followup queries
1985	# get handled first	2989	# get handled first
1986	my $queue = delete $ns->{query_queue}	2990	my $queue = delete $ns->{query_queue}
1987	or return; # be conservative, not sure how that can happen, but we saw a crash here	2991	or return; # be conservative, not sure how that can happen, but we saw a crash here
1988		2992
1989	(shift @$queue)->[1]->($msg);	2993	(shift @$queue)->[1]->($msg);
		2994	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1990		2995
1991	push @{ $ns->{query_queue} }, @$queue;	2996	push @{ $ns->{query_queue} }, @$queue;
1992		2997
1993	if (@{ $ns->{query_queue} } == @$queue) {	2998	if (@{ $ns->{query_queue} } == @$queue) {
1994	if (@$queue) {	2999	if (@$queue) {
…		…
1996	} else {	3001	} else {
1997	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3002	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1998	}	3003	}
1999	}	3004	}
2000	},	3005	},
		3006	on_exticmd => sub {
		3007	my ($ns, $buf) = @_;
		3008
		3009	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3010
		3011	if (ref $msg) {
		3012	my ($type, $reply, @payload) =
		3013	"ARRAY" eq ref $msg
		3014	? @$msg
		3015	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3016
		3017	my @reply;
		3018
		3019	if (my $cb = $EXTICMD{$type}) {
		3020	@reply = $cb->($ns, @payload);
		3021	}
		3022
		3023	$ns->ext_reply ($reply, @reply)
		3024	if $reply;
		3025
		3026	} else {
		3027	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3028	}
		3029
		3030	cf::override;
		3031	},
2001	);	3032	);
2002		3033
2003	=item $client->async (\&cb)	3034	=item $client->async (\&cb)
2004		3035
2005	Create a new coroutine, running the specified callback. The coroutine will	3036	Create a new coroutine, running the specified callback. The coroutine will
…		…
2046	our $safe = new Safe "safe";	3077	our $safe = new Safe "safe";
2047	our $safe_hole = new Safe::Hole;	3078	our $safe_hole = new Safe::Hole;
2048		3079
2049	$SIG{FPE} = 'IGNORE';	3080	$SIG{FPE} = 'IGNORE';
2050		3081
2051	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3082	$safe->permit_only (Opcode::opset qw(
		3083	:base_core :base_mem :base_orig :base_math
		3084	grepstart grepwhile mapstart mapwhile
		3085	sort time
		3086	));
2052		3087
2053	# here we export the classes and methods available to script code	3088	# here we export the classes and methods available to script code
2054		3089
2055	=pod	3090	=pod
2056		3091
2057	The following fucntions and emthods are available within a safe environment:	3092	The following functions and methods are available within a safe environment:
2058		3093
2059	cf::object contr pay_amount pay_player map	3094	cf::object
		3095	contr pay_amount pay_player map x y force_find force_add destroy
		3096	insert remove name archname title slaying race decrease split
		3097	value
		3098
2060	cf::object::player player	3099	cf::object::player
2061	cf::player peaceful	3100	player
2062	cf::map trigger	3101
		3102	cf::player
		3103	peaceful
		3104
		3105	cf::map
		3106	trigger
2063		3107
2064	=cut	3108	=cut
2065		3109
2066	for (	3110	for (
2067	["cf::object" => qw(contr pay_amount pay_player map)],	3111	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3112	insert remove inv nrof name archname title slaying race
		3113	decrease split destroy change_exp value msg lore send_msg)],
2068	["cf::object::player" => qw(player)],	3114	["cf::object::player" => qw(player)],
2069	["cf::player" => qw(peaceful)],	3115	["cf::player" => qw(peaceful send_msg)],
2070	["cf::map" => qw(trigger)],	3116	["cf::map" => qw(trigger)],
2071	) {	3117	) {
2072	no strict 'refs';	3118	no strict 'refs';
2073	my ($pkg, @funs) = @$_;	3119	my ($pkg, @funs) = @$_;
2074	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3120	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2091	my ($code, %vars) = @_;	3137	my ($code, %vars) = @_;
2092		3138
2093	my $qcode = $code;	3139	my $qcode = $code;
2094	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3140	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2095	$qcode =~ s/\n/\\n/g;	3141	$qcode =~ s/\n/\\n/g;
		3142
		3143	%vars = (_dummy => 0) unless %vars;
2096		3144
2097	local $_;	3145	local $_;
2098	local @safe::cf::_safe_eval_args = values %vars;	3146	local @safe::cf::_safe_eval_args = values %vars;
2099		3147
2100	my $eval =	3148	my $eval =
…		…
2143	=back	3191	=back
2144		3192
2145	=cut	3193	=cut
2146		3194
2147	#############################################################################	3195	#############################################################################
		3196	# the server's init and main functions
2148		3197
2149	=head2 EXTENSION DATABASE SUPPORT	3198	sub load_facedata($) {
		3199	my ($path) = @_;
2150		3200
2151	Crossfire maintains a very simple database for extension use. It can	3201	# HACK to clear player env face cache, we need some signal framework
2152	currently store anything that can be serialised using Storable, which	3202	# for this (global event?)
2153	excludes objects.	3203	%ext::player_env::MUSIC_FACE_CACHE = ();
2154		3204
2155	The parameter C<$family> should best start with the name of the extension	3205	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2156	using it, it should be unique.
2157		3206
2158	=over 4	3207	warn "loading facedata from $path\n";
2159		3208
2160	=item $hashref = cf::db_get $family	3209	my $facedata;
		3210	0 < aio_load $path, $facedata
		3211	or die "$path: $!";
2161		3212
2162	Return a hashref for use by the extension C<$family>, which can be	3213	$facedata = Coro::Storable::thaw $facedata;
2163	modified. After modifications, you have to call C<cf::db_dirty> or
2164	C<cf::db_sync>.
2165		3214
2166	=item $value = cf::db_get $family => $key	3215	$facedata->{version} == 2
		3216	or cf::cleanup "$path: version mismatch, cannot proceed.";
2167		3217
2168	Returns a single value from the database	3218	# patch in the exptable
2169		3219	$facedata->{resource}{"res/exp_table"} = {
2170	=item cf::db_put $family => $hashref	3220	type => FT_RSRC,
2171		3221	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2172	Stores the given family hashref into the database. Updates are delayed, if
2173	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2174
2175	=item cf::db_put $family => $key => $value
2176
2177	Stores the given C<$value> in the family hash. Updates are delayed, if you
2178	want the data to be synced to disk immediately, use C<cf::db_sync>.
2179
2180	=item cf::db_dirty
2181
2182	Marks the database as dirty, to be updated at a later time.
2183
2184	=item cf::db_sync
2185
2186	Immediately write the database to disk I<if it is dirty>.
2187
2188	=cut
2189
2190	our $DB;
2191
2192	{
2193	my $path = cf::localdir . "/database.pst";
2194
2195	sub db_load() {
2196	$DB = stat $path ? Storable::retrieve $path : { };
2197	}	3222	};
		3223	cf::cede_to_tick;
2198		3224
2199	my $pid;
2200
2201	sub db_save() {
2202	waitpid $pid, 0 if $pid;
2203	if (0 == ($pid = fork)) {
2204	$DB->{_meta}{version} = 1;
2205	Storable::nstore $DB, "$path~";
2206	rename "$path~", $path;
2207	cf::_exit 0 if defined $pid;
2208	}
2209	}	3225	{
		3226	my $faces = $facedata->{faceinfo};
2210		3227
2211	my $dirty;	3228	while (my ($face, $info) = each %$faces) {
		3229	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2212		3230
2213	sub db_sync() {	3231	cf::face::set_visibility $idx, $info->{visibility};
2214	db_save if $dirty;	3232	cf::face::set_magicmap $idx, $info->{magicmap};
2215	undef $dirty;	3233	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2216	}	3234	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2217		3235
2218	my $idle = Event->idle (	3236	cf::cede_to_tick;
2219	reentrant => 0,
2220	min => 10,
2221	max => 20,
2222	repeat => 0,
2223	data => WF_AUTOCANCEL,
2224	cb => \&db_sync,
2225	);
2226
2227	sub db_dirty() {
2228	$dirty = 1;
2229	$idle->start;
2230	}
2231
2232	sub db_get($;$) {
2233	@_ >= 2
2234	? $DB->{$_[0]}{$_[1]}
2235	: ($DB->{$_[0]} ||= { })
2236	}
2237
2238	sub db_put($$;$) {
2239	if (@_ >= 3) {
2240	$DB->{$_[0]}{$_[1]} = $_[2];
2241	} else {
2242	$DB->{$_[0]} = $_[1];
2243	}
2244	db_dirty;
2245	}
2246
2247	cf::global->attach (
2248	prio => 10000,
2249	on_cleanup => sub {
2250	db_sync;
2251	},	3237	}
2252	);
2253	}
2254		3238
2255	#############################################################################	3239	while (my ($face, $info) = each %$faces) {
2256	# the server's main()	3240	next unless $info->{smooth};
2257		3241
2258	sub cfg_load {	3242	my $idx = cf::face::find $face
		3243	or next;
		3244
		3245	if (my $smooth = cf::face::find $info->{smooth}) {
		3246	cf::face::set_smooth $idx, $smooth;
		3247	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3248	} else {
		3249	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3250	}
		3251
		3252	cf::cede_to_tick;
		3253	}
		3254	}
		3255
		3256	{
		3257	my $anims = $facedata->{animinfo};
		3258
		3259	while (my ($anim, $info) = each %$anims) {
		3260	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3261	cf::cede_to_tick;
		3262	}
		3263
		3264	cf::anim::invalidate_all; # d'oh
		3265	}
		3266
		3267	{
		3268	# TODO: for gcfclient pleasure, we should give resources
		3269	# that gcfclient doesn't grok a >10000 face index.
		3270	my $res = $facedata->{resource};
		3271
		3272	while (my ($name, $info) = each %$res) {
		3273	if (defined $info->{type}) {
		3274	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3275	my $data;
		3276
		3277	if ($info->{type} & 1) {
		3278	# prepend meta info
		3279
		3280	my $meta = $enc->encode ({
		3281	name => $name,
		3282	%{ $info->{meta} || {} },
		3283	});
		3284
		3285	$data = pack "(w/a*)*", $meta, $info->{data};
		3286	} else {
		3287	$data = $info->{data};
		3288	}
		3289
		3290	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3291	cf::face::set_type $idx, $info->{type};
		3292	} else {
		3293	$RESOURCE{$name} = $info;
		3294	}
		3295
		3296	cf::cede_to_tick;
		3297	}
		3298	}
		3299
		3300	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3301
		3302	1
		3303	}
		3304
		3305	cf::global->attach (on_resource_update => sub {
		3306	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3307	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3308
		3309	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3310	my $sound = $soundconf->{compat}[$_]
		3311	or next;
		3312
		3313	my $face = cf::face::find "sound/$sound->[1]";
		3314	cf::sound::set $sound->[0] => $face;
		3315	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3316	}
		3317
		3318	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3319	my $face = cf::face::find "sound/$v";
		3320	cf::sound::set $k => $face;
		3321	}
		3322	}
		3323	});
		3324
		3325	register_exticmd fx_want => sub {
		3326	my ($ns, $want) = @_;
		3327
		3328	while (my ($k, $v) = each %$want) {
		3329	$ns->fx_want ($k, $v);
		3330	}
		3331	};
		3332
		3333	sub load_resource_file($) {
		3334	my $guard = lock_acquire "load_resource_file";
		3335
		3336	my $status = load_resource_file_ $_[0];
		3337	get_slot 0.1, 100;
		3338	cf::arch::commit_load;
		3339
		3340	$status
		3341	}
		3342
		3343	sub reload_regions {
		3344	# HACK to clear player env face cache, we need some signal framework
		3345	# for this (global event?)
		3346	%ext::player_env::MUSIC_FACE_CACHE = ();
		3347
		3348	load_resource_file "$MAPDIR/regions"
		3349	or die "unable to load regions file\n";
		3350
		3351	for (cf::region::list) {
		3352	$_->{match} = qr/$_->{match}/
		3353	if exists $_->{match};
		3354	}
		3355	}
		3356
		3357	sub reload_facedata {
		3358	load_facedata "$DATADIR/facedata"
		3359	or die "unable to load facedata\n";
		3360	}
		3361
		3362	sub reload_archetypes {
		3363	load_resource_file "$DATADIR/archetypes"
		3364	or die "unable to load archetypes\n";
		3365	}
		3366
		3367	sub reload_treasures {
		3368	load_resource_file "$DATADIR/treasures"
		3369	or die "unable to load treasurelists\n";
		3370	}
		3371
		3372	sub reload_resources {
		3373	warn "reloading resource files...\n";
		3374
		3375	reload_facedata;
		3376	reload_archetypes;
		3377	reload_regions;
		3378	reload_treasures;
		3379
		3380	warn "finished reloading resource files\n";
		3381	}
		3382
		3383	sub reload_config {
2259	open my $fh, "<:utf8", cf::confdir . "/config"	3384	open my $fh, "<:utf8", "$CONFDIR/config"
2260	or return;	3385	or return;
2261		3386
2262	local $/;	3387	local $/;
2263	*CFG = YAML::Syck::Load <$fh>;	3388	*CFG = YAML::Load <$fh>;
2264		3389
2265	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3390	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2266		3391
2267	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3392	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2268	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3393	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2274	};	3399	};
2275	warn $@ if $@;	3400	warn $@ if $@;
2276	}	3401	}
2277	}	3402	}
2278		3403
		3404	sub pidfile() {
		3405	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3406	or die "$PIDFILE: $!";
		3407	flock $fh, &Fcntl::LOCK_EX
		3408	or die "$PIDFILE: flock: $!";
		3409	$fh
		3410	}
		3411
		3412	# make sure only one server instance is running at any one time
		3413	sub atomic {
		3414	my $fh = pidfile;
		3415
		3416	my $pid = <$fh>;
		3417	kill 9, $pid if $pid > 0;
		3418
		3419	seek $fh, 0, 0;
		3420	print $fh $$;
		3421	}
		3422
		3423	sub main_loop {
		3424	warn "EV::loop starting\n";
		3425	if (1) {
		3426	EV::loop;
		3427	}
		3428	warn "EV::loop returned\n";
		3429	goto &main_loop unless $REALLY_UNLOOP;
		3430	}
		3431
2279	sub main {	3432	sub main {
		3433	cf::init_globals; # initialise logging
		3434
		3435	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3436	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3437	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3438	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3439
		3440	cf::init_experience;
		3441	cf::init_anim;
		3442	cf::init_attackmess;
		3443	cf::init_dynamic;
		3444
		3445	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3446
2280	# we must not ever block the main coroutine	3447	# we must not ever block the main coroutine
2281	local $Coro::idle = sub {	3448	local $Coro::idle = sub {
2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3449	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2283	(async {	3450	(async {
2284	Event::one_event;	3451	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3452	EV::loop EV::LOOP_ONESHOT;
2285	})->prio (Coro::PRIO_MAX);	3453	})->prio (Coro::PRIO_MAX);
2286	};	3454	};
2287		3455
2288	cfg_load;	3456	evthread_start IO::AIO::poll_fileno;
2289	db_load;	3457
		3458	cf::sync_job {
		3459	reload_resources;
		3460	reload_config;
		3461	db_init;
		3462
		3463	cf::load_settings;
		3464	cf::load_materials;
		3465	cf::init_uuid;
		3466	cf::init_signals;
		3467	cf::init_commands;
		3468	cf::init_skills;
		3469
		3470	cf::init_beforeplay;
		3471
		3472	atomic;
		3473
2290	load_extensions;	3474	load_extensions;
2291		3475
2292	$TICK_WATCHER->start;	3476	utime time, time, $RUNTIMEFILE;
2293	Event::loop;	3477
		3478	# no (long-running) fork's whatsoever before this point(!)
		3479	use POSIX ();
		3480	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3481
		3482	(pop @POST_INIT)->(0) while @POST_INIT;
		3483	};
		3484
		3485	main_loop;
2294	}	3486	}
2295		3487
2296	#############################################################################	3488	#############################################################################
2297	# initialisation and cleanup	3489	# initialisation and cleanup
2298		3490
2299	# install some emergency cleanup handlers	3491	# install some emergency cleanup handlers
2300	BEGIN {	3492	BEGIN {
		3493	our %SIGWATCHER = ();
2301	for my $signal (qw(INT HUP TERM)) {	3494	for my $signal (qw(INT HUP TERM)) {
2302	Event->signal (	3495	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2303	reentrant => 0,
2304	data => WF_AUTOCANCEL,
2305	signal => $signal,
2306	prio => 0,
2307	cb => sub {
2308	cf::cleanup "SIG$signal";	3496	cf::cleanup "SIG$signal";
2309	},
2310	);	3497	};
		3498	}
		3499	}
		3500
		3501	sub write_runtime_sync {
		3502	# first touch the runtime file to show we are still running:
		3503	# the fsync below can take a very very long time.
		3504
		3505	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3506
		3507	my $guard = cf::lock_acquire "write_runtime";
		3508
		3509	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3510	or return;
		3511
		3512	my $value = $cf::RUNTIME + 90 + 10;
		3513	# 10 is the runtime save interval, for a monotonic clock
		3514	# 60 allows for the watchdog to kill the server.
		3515
		3516	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3517	and return;
		3518
		3519	# always fsync - this file is important
		3520	aio_fsync $fh
		3521	and return;
		3522
		3523	# touch it again to show we are up-to-date
		3524	aio_utime $fh, undef, undef;
		3525
		3526	close $fh
		3527	or return;
		3528
		3529	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3530	and return;
		3531
		3532	warn "runtime file written.\n";
		3533
2311	}	3534	1
		3535	}
		3536
		3537	our $uuid_lock;
		3538	our $uuid_skip;
		3539
		3540	sub write_uuid_sync($) {
		3541	$uuid_skip ||= $_[0];
		3542
		3543	return if $uuid_lock;
		3544	local $uuid_lock = 1;
		3545
		3546	my $uuid = "$LOCALDIR/uuid";
		3547
		3548	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3549	or return;
		3550
		3551	my $value = uuid_seq uuid_cur;
		3552
		3553	unless ($value) {
		3554	warn "cowardly refusing to write zero uuid value!\n";
		3555	return;
		3556	}
		3557
		3558	my $value = uuid_str $value + $uuid_skip;
		3559	$uuid_skip = 0;
		3560
		3561	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3562	and return;
		3563
		3564	# always fsync - this file is important
		3565	aio_fsync $fh
		3566	and return;
		3567
		3568	close $fh
		3569	or return;
		3570
		3571	aio_rename "$uuid~", $uuid
		3572	and return;
		3573
		3574	warn "uuid file written ($value).\n";
		3575
		3576	1
		3577
		3578	}
		3579
		3580	sub write_uuid($$) {
		3581	my ($skip, $sync) = @_;
		3582
		3583	$sync ? write_uuid_sync $skip
		3584	: async { write_uuid_sync $skip };
2312	}	3585	}
2313		3586
2314	sub emergency_save() {	3587	sub emergency_save() {
2315	my $freeze_guard = cf::freeze_mainloop;	3588	my $freeze_guard = cf::freeze_mainloop;
2316		3589
2317	warn "enter emergency perl save\n";	3590	warn "emergency_perl_save: enter\n";
2318		3591
2319	cf::sync_job {	3592	cf::sync_job {
		3593	# this is a trade-off: we want to be very quick here, so
		3594	# save all maps without fsync, and later call a global sync
		3595	# (which in turn might be very very slow)
		3596	local $USE_FSYNC = 0;
		3597
2320	# use a peculiar iteration method to avoid tripping on perl	3598	# use a peculiar iteration method to avoid tripping on perl
2321	# refcount bugs in for. also avoids problems with players	3599	# refcount bugs in for. also avoids problems with players
2322	# and maps saved/destroyed asynchronously.	3600	# and maps saved/destroyed asynchronously.
2323	warn "begin emergency player save\n";	3601	warn "emergency_perl_save: begin player save\n";
2324	for my $login (keys %cf::PLAYER) {	3602	for my $login (keys %cf::PLAYER) {
2325	my $pl = $cf::PLAYER{$login} or next;	3603	my $pl = $cf::PLAYER{$login} or next;
2326	$pl->valid or next;	3604	$pl->valid or next;
		3605	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2327	$pl->save;	3606	$pl->save;
2328	}	3607	}
2329	warn "end emergency player save\n";	3608	warn "emergency_perl_save: end player save\n";
2330		3609
2331	warn "begin emergency map save\n";	3610	warn "emergency_perl_save: begin map save\n";
2332	for my $path (keys %cf::MAP) {	3611	for my $path (keys %cf::MAP) {
2333	my $map = $cf::MAP{$path} or next;	3612	my $map = $cf::MAP{$path} or next;
2334	$map->valid or next;	3613	$map->valid or next;
2335	$map->save;	3614	$map->save;
2336	}	3615	}
2337	warn "end emergency map save\n";	3616	warn "emergency_perl_save: end map save\n";
		3617
		3618	warn "emergency_perl_save: begin database checkpoint\n";
		3619	BDB::db_env_txn_checkpoint $DB_ENV;
		3620	warn "emergency_perl_save: end database checkpoint\n";
		3621
		3622	warn "emergency_perl_save: begin write uuid\n";
		3623	write_uuid_sync 1;
		3624	warn "emergency_perl_save: end write uuid\n";
2338	};	3625	};
2339		3626
		3627	warn "emergency_perl_save: starting sync()\n";
		3628	IO::AIO::aio_sync sub {
		3629	warn "emergency_perl_save: finished sync()\n";
		3630	};
		3631
2340	warn "leave emergency perl save\n";	3632	warn "emergency_perl_save: leave\n";
2341	}	3633	}
2342		3634
		3635	sub post_cleanup {
		3636	my ($make_core) = @_;
		3637
		3638	warn Carp::longmess "post_cleanup backtrace"
		3639	if $make_core;
		3640
		3641	my $fh = pidfile;
		3642	unlink $PIDFILE if <$fh> == $$;
		3643	}
		3644
		3645	# a safer delete_package, copied from Symbol
		3646	sub clear_package($) {
		3647	my $pkg = shift;
		3648
		3649	# expand to full symbol table name if needed
		3650	unless ($pkg =~ /^main::.*::$/) {
		3651	$pkg = "main$pkg" if $pkg =~ /^::/;
		3652	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3653	$pkg .= '::' unless $pkg =~ /::$/;
		3654	}
		3655
		3656	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3657	my $stem_symtab = *{$stem}{HASH};
		3658
		3659	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3660	or return;
		3661
		3662	# clear all symbols
		3663	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3664	for my $name (keys %$leaf_symtab) {
		3665	_gv_clear *{"$pkg$name"};
		3666	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3667	}
		3668	warn "cleared package $pkg\n";#d#
		3669	}
		3670
2343	sub reload() {	3671	sub do_reload_perl() {
2344	# can/must only be called in main	3672	# can/must only be called in main
2345	if ($Coro::current != $Coro::main) {	3673	if ($Coro::current != $Coro::main) {
2346	warn "can only reload from main coroutine";	3674	warn "can only reload from main coroutine";
2347	return;	3675	return;
2348	}	3676	}
2349		3677
		3678	return if $RELOAD++;
		3679
		3680	my $t1 = EV::time;
		3681
		3682	while ($RELOAD) {
2350	warn "reloading...";	3683	warn "reloading...";
2351		3684
2352	warn "cancelling server ticker";	3685	warn "entering sync_job";
2353	$TICK_WATCHER->cancel;
2354		3686
		3687	cf::sync_job {
		3688	cf::write_runtime_sync; # external watchdog should not bark
2355	cf::emergency_save;	3689	cf::emergency_save;
		3690	cf::write_runtime_sync; # external watchdog should not bark
2356		3691
2357	eval {	3692	warn "syncing database to disk";
		3693	BDB::db_env_txn_checkpoint $DB_ENV;
		3694
2358	# if anything goes wrong in here, we should simply crash as we already saved	3695	# if anything goes wrong in here, we should simply crash as we already saved
2359		3696
2360	warn "syncing database to disk";
2361	cf::db_sync;
2362
2363	warn "cancelling all WF_AUTOCANCEL watchers";
2364	for (Event::all_watchers) {
2365	$_->cancel if $_->data & WF_AUTOCANCEL;
2366	}
2367
2368	warn "flushing outstanding aio requests";	3697	warn "flushing outstanding aio requests";
2369	for (;;) {	3698	while (IO::AIO::nreqs || BDB::nreqs) {
2370	IO::AIO::flush;	3699	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2371	Coro::cede;
2372	last unless IO::AIO::nreqs;
2373	warn "iterate...";
2374	}
2375
2376	warn "cancelling all extension coros";
2377	$_->cancel for values %EXT_CORO;
2378	%EXT_CORO = ();
2379
2380	warn "removing commands";
2381	%COMMAND = ();
2382
2383	warn "removing ext commands";
2384	%EXTCMD = ();
2385
2386	warn "unloading/nuking all extensions";
2387	for my $pkg (@EXTS) {
2388	warn "... unloading $pkg";
2389
2390	if (my $cb = $pkg->can ("unload")) {
2391	eval {
2392	$cb->($pkg);
2393	1
2394	} or warn "$pkg unloaded, but with errors: $@";
2395	}	3700	}
2396		3701
2397	warn "... nuking $pkg";	3702	warn "cancelling all extension coros";
2398	Symbol::delete_package $pkg;	3703	$_->cancel for values %EXT_CORO;
2399	}	3704	%EXT_CORO = ();
2400		3705
2401	warn "unloading all perl modules loaded from $LIBDIR";	3706	warn "removing commands";
2402	while (my ($k, $v) = each %INC) {	3707	%COMMAND = ();
2403	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2404		3708
		3709	warn "removing ext/exti commands";
		3710	%EXTCMD = ();
		3711	%EXTICMD = ();
		3712
		3713	warn "unloading/nuking all extensions";
		3714	for my $pkg (@EXTS) {
2405	warn "... unloading $k";	3715	warn "... unloading $pkg";
2406	delete $INC{$k};
2407		3716
2408	$k =~ s/\.pm$//;
2409	$k =~ s/\//::/g;
2410
2411	if (my $cb = $k->can ("unload_module")) {	3717	if (my $cb = $pkg->can ("unload")) {
		3718	eval {
2412	$cb->();	3719	$cb->($pkg);
		3720	1
		3721	} or warn "$pkg unloaded, but with errors: $@";
		3722	}
		3723
		3724	warn "... clearing $pkg";
		3725	clear_package $pkg;
2413	}	3726	}
2414		3727
2415	Symbol::delete_package $k;	3728	warn "unloading all perl modules loaded from $LIBDIR";
		3729	while (my ($k, $v) = each %INC) {
		3730	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3731
		3732	warn "... unloading $k";
		3733	delete $INC{$k};
		3734
		3735	$k =~ s/\.pm$//;
		3736	$k =~ s/\//::/g;
		3737
		3738	if (my $cb = $k->can ("unload_module")) {
		3739	$cb->();
		3740	}
		3741
		3742	clear_package $k;
2416	}	3743	}
2417		3744
2418	warn "getting rid of safe::, as good as possible";	3745	warn "getting rid of safe::, as good as possible";
2419	Symbol::delete_package "safe::$_"	3746	clear_package "safe::$_"
2420	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3747	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2421		3748
2422	warn "unloading cf.pm \"a bit\"";	3749	warn "unloading cf.pm \"a bit\"";
2423	delete $INC{"cf.pm"};	3750	delete $INC{"cf.pm"};
		3751	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2424		3752
2425	# don't, removes xs symbols, too,	3753	# don't, removes xs symbols, too,
2426	# and global variables created in xs	3754	# and global variables created in xs
2427	#Symbol::delete_package __PACKAGE__;	3755	#clear_package __PACKAGE__;
2428		3756
2429	warn "unload completed, starting to reload now";	3757	warn "unload completed, starting to reload now";
2430		3758
2431	warn "reloading cf.pm";	3759	warn "reloading cf.pm";
2432	require cf;	3760	require cf;
2433	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3761	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2434		3762
2435	warn "loading config and database again";	3763	warn "loading config and database again";
2436	cf::cfg_load;	3764	cf::reload_config;
2437	cf::db_load;
2438		3765
2439	warn "loading extensions";	3766	warn "loading extensions";
2440	cf::load_extensions;	3767	cf::load_extensions;
2441		3768
		3769	if ($REATTACH_ON_RELOAD) {
2442	warn "reattaching attachments to objects/players";	3770	warn "reattaching attachments to objects/players";
2443	_global_reattach;	3771	_global_reattach; # objects, sockets
2444	warn "reattaching attachments to maps";	3772	warn "reattaching attachments to maps";
2445	reattach $_ for values %MAP;	3773	reattach $_ for values %MAP;
		3774	warn "reattaching attachments to players";
		3775	reattach $_ for values %PLAYER;
		3776	}
2446		3777
2447	warn "restarting server ticker";	3778	warn "running post_init jobs";
		3779	(pop @POST_INIT)->(1) while @POST_INIT;
2448		3780
2449	$TICK_WATCHER->start;	3781	warn "leaving sync_job";
		3782
		3783	1
		3784	} or do {
		3785	warn $@;
		3786	cf::cleanup "error while reloading, exiting.";
		3787	};
		3788
		3789	warn "reloaded";
		3790	--$RELOAD;
		3791	}
		3792
		3793	$t1 = EV::time - $t1;
		3794	warn "reload completed in ${t1}s\n";
		3795	};
		3796
		3797	our $RELOAD_WATCHER; # used only during reload
		3798
		3799	sub reload_perl() {
		3800	# doing reload synchronously and two reloads happen back-to-back,
		3801	# coro crashes during coro_state_free->destroy here.
		3802
		3803	$RELOAD_WATCHER ||= cf::async {
		3804	Coro::AIO::aio_wait cache_extensions;
		3805
		3806	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3807	do_reload_perl;
		3808	undef $RELOAD_WATCHER;
		3809	};
2450	};	3810	};
2451		3811	}
2452	if ($@) {
2453	warn $@;
2454	warn "error while reloading, exiting.";
2455	exit 1;
2456	}
2457
2458	warn "reloaded";
2459	};
2460
2461	our $RELOAD_WATCHER; # used only during reload
2462		3812
2463	register_command "reload" => sub {	3813	register_command "reload" => sub {
2464	my ($who, $arg) = @_;	3814	my ($who, $arg) = @_;
2465		3815
2466	if ($who->flag (FLAG_WIZ)) {	3816	if ($who->flag (FLAG_WIZ)) {
2467	$who->message ("reloading server.");	3817	$who->message ("reloading server.");
2468		3818	async {
2469	# doing reload synchronously and two reloads happen back-to-back,	3819	$Coro::current->{desc} = "perl_reload";
2470	# coro crashes during coro_state_free->destroy here.
2471
2472	$RELOAD_WATCHER ||= Event->timer (
2473	reentrant => 0,
2474	after => 0,
2475	data => WF_AUTOCANCEL,
2476	cb => sub {
2477	reload;	3820	reload_perl;
2478	undef $RELOAD_WATCHER;
2479	},
2480	);	3821	};
2481	}	3822	}
2482	};	3823	};
2483		3824
2484	unshift @INC, $LIBDIR;	3825	unshift @INC, $LIBDIR;
2485		3826
2486	my $bug_warning = 0;	3827	my $bug_warning = 0;
2487		3828
2488	$TICK_WATCHER = Event->timer (	3829	our @WAIT_FOR_TICK;
2489	reentrant => 0,	3830	our @WAIT_FOR_TICK_BEGIN;
2490	parked => 1,	3831
2491	prio => 0,	3832	sub wait_for_tick {
2492	at => $NEXT_TICK || $TICK,	3833	return if tick_inhibit || $Coro::current == $Coro::main;
2493	data => WF_AUTOCANCEL,	3834
2494	cb => sub {	3835	my $signal = new Coro::Signal;
		3836	push @WAIT_FOR_TICK, $signal;
		3837	$signal->wait;
		3838	}
		3839
		3840	sub wait_for_tick_begin {
		3841	return if tick_inhibit || $Coro::current == $Coro::main;
		3842
		3843	my $signal = new Coro::Signal;
		3844	push @WAIT_FOR_TICK_BEGIN, $signal;
		3845	$signal->wait;
		3846	}
		3847
		3848	sub tick {
2495	if ($Coro::current != $Coro::main) {	3849	if ($Coro::current != $Coro::main) {
2496	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3850	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2497	unless ++$bug_warning > 10;	3851	unless ++$bug_warning > 10;
2498	return;	3852	return;
2499	}	3853	}
2500		3854
2501	$NOW = Event::time;
2502
2503	cf::server_tick; # one server iteration	3855	cf::server_tick; # one server iteration
2504	$RUNTIME += $TICK;
2505	$NEXT_TICK += $TICK;
2506		3856
2507	$WAIT_FOR_TICK->broadcast;	3857	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2508	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3858	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2509		3859	Coro::async_pool {
2510	Event::sweep;	3860	$Coro::current->{desc} = "runtime saver";
2511	Coro::cede_notself;
2512
2513	# my $AFTER = Event::time;
2514	# warn $AFTER - $NOW;#d#
2515
2516	# if we are delayed by four ticks or more, skip them all
2517	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2518
2519	$TICK_WATCHER->at ($NEXT_TICK);
2520	$TICK_WATCHER->start;
2521	},
2522	);
2523
2524	IO::AIO::max_poll_time $TICK * 0.1;
2525
2526	undef $Coro::AIO::WATCHER;
2527	$AIO_POLL_WATCHER = Event->io (
2528	reentrant => 0,
2529	fd => IO::AIO::poll_fileno,
2530	poll => 'r',
2531	prio => 6,
2532	data => WF_AUTOCANCEL,
2533	cb => \&IO::AIO::poll_cb,
2534	);
2535
2536	$WRITE_RUNTIME_WATCHER = Event->timer (
2537	reentrant => 0,
2538	data => WF_AUTOCANCEL,
2539	after => 1,
2540	interval => 10,
2541	prio => 6, # keep it lowest so it acts like a watchdog
2542	cb => Coro::unblock_sub {
2543	write_runtime	3861	write_runtime_sync
2544	or warn "ERROR: unable to write runtime file: $!";	3862	or warn "ERROR: unable to write runtime file: $!";
		3863	};
2545	},	3864	}
2546	);	3865
		3866	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3867	$sig->send;
		3868	}
		3869	while (my $sig = shift @WAIT_FOR_TICK) {
		3870	$sig->send;
		3871	}
		3872
		3873	$LOAD = ($NOW - $TICK_START) / $TICK;
		3874	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3875
		3876	if (0) {
		3877	if ($NEXT_TICK) {
		3878	my $jitter = $TICK_START - $NEXT_TICK;
		3879	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3880	warn "jitter $JITTER\n";#d#
		3881	}
		3882	}
		3883	}
		3884
		3885	{
		3886	# configure BDB
		3887
		3888	BDB::min_parallel 8;
		3889	BDB::max_poll_reqs $TICK * 0.1;
		3890	$AnyEvent::BDB::WATCHER->priority (1);
		3891
		3892	unless ($DB_ENV) {
		3893	$DB_ENV = BDB::db_env_create;
		3894	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3895	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3896	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3897	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3898	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3899
		3900	cf::sync_job {
		3901	eval {
		3902	BDB::db_env_open
		3903	$DB_ENV,
		3904	$BDBDIR,
		3905	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3906	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3907	0666;
		3908
		3909	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3910	};
		3911
		3912	cf::cleanup "db_env_open(db): $@" if $@;
		3913	};
		3914	}
		3915
		3916	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3917	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3918	};
		3919	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3920	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3921	};
		3922	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3923	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3924	};
		3925	}
		3926
		3927	{
		3928	# configure IO::AIO
		3929
		3930	IO::AIO::min_parallel 8;
		3931	IO::AIO::max_poll_time $TICK * 0.1;
		3932	undef $AnyEvent::AIO::WATCHER;
		3933	}
		3934
		3935	my $_log_backtrace;
		3936
		3937	sub _log_backtrace {
		3938	my ($msg, @addr) = @_;
		3939
		3940	$msg =~ s/\n//;
		3941
		3942	# limit the # of concurrent backtraces
		3943	if ($_log_backtrace < 2) {
		3944	++$_log_backtrace;
		3945	my $perl_bt = Carp::longmess $msg;
		3946	async {
		3947	$Coro::current->{desc} = "abt $msg";
		3948
		3949	my @bt = fork_call {
		3950	@addr = map { sprintf "%x", $_ } @addr;
		3951	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3952	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3953	or die "addr2line: $!";
		3954
		3955	my @funcs;
		3956	my @res = <$fh>;
		3957	chomp for @res;
		3958	while (@res) {
		3959	my ($func, $line) = splice @res, 0, 2, ();
		3960	push @funcs, "[$func] $line";
		3961	}
		3962
		3963	@funcs
		3964	};
		3965
		3966	LOG llevInfo, "[ABT] $perl_bt\n";
		3967	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3968	LOG llevInfo, "[ABT] $_\n" for @bt;
		3969	--$_log_backtrace;
		3970	};
		3971	} else {
		3972	LOG llevInfo, "[ABT] $msg\n";
		3973	LOG llevInfo, "[ABT] [suppressed]\n";
		3974	}
		3975	}
		3976
		3977	# load additional modules
		3978	require "cf/$_.pm" for @EXTRA_MODULES;
2547		3979
2548	END { cf::emergency_save }	3980	END { cf::emergency_save }
2549		3981
2550	1	3982	1
2551		3983

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