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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.205 by root, Mon Feb 5 18:29:20 2007 UTC vs.
Revision 1.495 by root, Tue Nov 10 04:38:45 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.5 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
		55	use JSON::XS 2.01 ();
		56	use BDB ();
20	use Data::Dumper;	57	use Data::Dumper;
21	use Digest::MD5;	58	use Digest::MD5;
22	use Fcntl;	59	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	60	use YAML::XS ();
		61	use IO::AIO ();
25	use Time::HiRes;	62	use Time::HiRes;
		63	use Compress::LZF;
		64	use Digest::MD5 ();
26		65
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
		67
		68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		81
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	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		83
36	our %COMMAND = ();	84	our %COMMAND = ();
37	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
38		86
39	our @EXTS = (); # list of extension package names	87	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	90	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	91	our %EXT_MAP = (); # pluggable maps
43		92
		93	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	94	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
46		97
47	our $TICK = MAX_TIME * 1e-6;	98	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	99	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	100	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103	our $LOCALDIR = localdir;
		104	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		105	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		106	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		107	our $RANDOMDIR = "$LOCALDIR/random";
		108	our $BDBDIR = "$LOCALDIR/db";
		109	our $PIDFILE = "$LOCALDIR/pid";
		110	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		111
		112	our %RESOURCE;
		113
		114	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	116	our $NEXT_TICK;
52	our $NOW;
53	our $USE_FSYNC = 1; # use fsync to write maps - default off	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
		121	our $BDB_TRICKLE_WATCHER;
		122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
54		125
55	our %CFG;	126	our %CFG;
56		127
57	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
58	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
59		131
60	our %PLAYER; # all users	132	our (%PLAYER, %PLAYER_LOADING); # all users
61	our %MAP; # all maps	133	our (%MAP, %MAP_LOADING ); # all maps
62	our $LINK_MAP; # the special {link} map, which is always available	134	our $LINK_MAP; # the special {link} map, which is always available
63	our $RANDOM_MAPS = cf::localdir . "/random";
64
65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
67		135
68	# used to convert map paths into valid unix filenames by replacing / by ∕	136	# used to convert map paths into valid unix filenames by replacing / by ∕
69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
70		138
		139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
		142	our $TICK_START; # for load detecting purposes
		143
		144	our @POST_INIT;
		145
		146	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		147	our $REALLY_UNLOOP; # never set to true, please :)
		148
71	binmode STDOUT;	149	binmode STDOUT;
72	binmode STDERR;	150	binmode STDERR;
73		151
74	# read virtual server time, if available	152	# read virtual server time, if available
75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
76	open my $fh, "<", cf::localdir . "/runtime"	154	open my $fh, "<", $RUNTIMEFILE
77	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
78	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
79	}	157	}
80		158
81	mkdir cf::localdir;	159	eval "sub TICK() { $TICK } 1" or die;
82	mkdir cf::localdir . "/" . cf::playerdir;	160
83	mkdir cf::localdir . "/" . cf::tmpdir;	161	mkdir $_
84	mkdir cf::localdir . "/" . cf::uniquedir;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
85	mkdir $RANDOM_MAPS;
86		163
87	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
88		165
89	sub cf::map::normalise;	166	sub cf::map::normalise;
		167
		168	#############################################################################
		169
		170	%REFLECT = ();
		171	for (@REFLECT) {
		172	my $reflect = JSON::XS::decode_json $_;
		173	$REFLECT{$reflect->{class}} = $reflect;
		174	}
		175
		176	# this is decidedly evil
		177	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
90		178
91	#############################################################################	179	#############################################################################
92		180
93	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
94		182
…		…
101	=item $cf::RUNTIME	189	=item $cf::RUNTIME
102		190
103	The time this server has run, starts at 0 and is increased by $cf::TICK on	191	The time this server has run, starts at 0 and is increased by $cf::TICK on
104	every server tick.	192	every server tick.
105		193
106	=item $cf::LIBDIR	194	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		195	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		196	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
107		197
108	The perl library directory, where extensions and cf-specific modules can	198	Various directories - "/etc", read-only install directory, perl-library
109	be found. It will be added to C<@INC> automatically.	199	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		200	unique-items directory, player file directory, random maps directory and
		201	database environment.
110		202
111	=item $cf::NOW	203	=item $cf::NOW
112		204
113	The time of the last (current) server tick.	205	The time of the last (current) server tick.
114		206
115	=item $cf::TICK	207	=item $cf::TICK
116		208
117	The interval between server ticks, in seconds.	209	The interval between server ticks, in seconds.
118		210
		211	=item $cf::LOADAVG
		212
		213	The current CPU load on the server (alpha-smoothed), as a value between 0
		214	(none) and 1 (overloaded), indicating how much time is spent on processing
		215	objects per tick. Healthy values are < 0.5.
		216
		217	=item $cf::LOAD
		218
		219	The raw value load value from the last tick.
		220
119	=item %cf::CFG	221	=item %cf::CFG
120		222
121	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
122	from wherever your confdir points to.	224	from wherever your confdir points to.
123		225
124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	226	=item cf::wait_for_tick, cf::wait_for_tick_begin
125		227
126	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	228	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
127	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	229	returns directly I<after> the tick processing (and consequently, can only wake one process
128	processing has been done. Call C<< ->wait >> on them to maximise the	230	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
129	window of cpu time available, or simply to synchronise to the server tick.	231
		232	=item @cf::INVOKE_RESULTS
		233
		234	This array contains the results of the last C<invoke ()> call. When
		235	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		236	that call.
		237
		238	=item %cf::REFLECT
		239
		240	Contains, for each (C++) class name, a hash reference with information
		241	about object members (methods, scalars, arrays and flags) and other
		242	metadata, which is useful for introspection.
130		243
131	=back	244	=back
132		245
133	=cut	246	=cut
134		247
135	BEGIN {	248	$Coro::State::WARNHOOK = sub {
136	*CORE::GLOBAL::warn = sub {
137	my $msg = join "", @_;	249	my $msg = join "", @_;
138	utf8::encode $msg;
139		250
140	$msg .= "\n"	251	$msg .= "\n"
141	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
142		253
		254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		255
143	LOG llevError, $msg;	256	LOG llevError, $msg;
144	};	257	};
145	}	258
		259	$Coro::State::DIEHOOK = sub {
		260	return unless $^S eq 0; # "eq", not "=="
		261
		262	warn Carp::longmess $_[0];
		263
		264	if ($Coro::current == $Coro::main) {#d#
		265	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		266	return;#d#
		267	}#d#
		268
		269	# kill coroutine otherwise
		270	Coro::terminate
		271	};
146		272
147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
151	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	277	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		278	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
152	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	279	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
153		280
154	# we bless all objects into (empty) derived classes to force a method lookup	281	# we bless all objects into (empty) derived classes to force a method lookup
155	# within the Safe compartment.	282	# within the Safe compartment.
156	for my $pkg (qw(	283	for my $pkg (qw(
157	cf::global cf::attachable	284	cf::global cf::attachable
158	cf::object cf::object::player	285	cf::object cf::object::player
159	cf::client cf::player	286	cf::client cf::player
160	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
161	cf::map cf::party cf::region	289	cf::party cf::region
162	)) {	290	)) {
163	no strict 'refs';
164	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
165	}	292	}
166		293
167	$Event::DIED = sub {	294	$EV::DIED = sub {
168	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
169	};	296	};
		297
		298	#############################################################################
170		299
171	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
172		301
173	=over 4	302	=over 4
174		303
…		…
193	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	322	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
194	$d	323	$d
195	} || "[unable to dump $_[0]: '$@']";	324	} || "[unable to dump $_[0]: '$@']";
196	}	325	}
197		326
198	use JSON::Syck (); # TODO# replace by JSON::PC once working
199
200	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
201		328
202	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
203		330
204	=cut
205
206	sub from_json($) {
207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
208	JSON::Syck::Load $_[0]
209	}
210
211	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
212		332
213	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
214		334
215	=cut	335	=cut
216		336
217	sub to_json($) {	337	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	338
219	JSON::Syck::Dump $_[0]	339	sub encode_json($) { $json_coder->encode ($_[0]) }
		340	sub decode_json($) { $json_coder->decode ($_[0]) }
		341
		342	=item cf::post_init { BLOCK }
		343
		344	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		345	but I<before> the server starts ticking again.
		346
		347	The cdoeblock will have a single boolean argument to indicate whether this
		348	is a reload or not.
		349
		350	=cut
		351
		352	sub post_init(&) {
		353	push @POST_INIT, shift;
220	}	354	}
221		355
222	=item cf::lock_wait $string	356	=item cf::lock_wait $string
223		357
224	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
225		359
226	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
227		361
228	Wait until the given lock is available and then acquires it and returns	362	Wait until the given lock is available and then acquires it and returns
229	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	363	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
230	for example when the coroutine gets canceled), the lock is automatically	364	for example when the coroutine gets canceled), the lock is automatically
231	returned.	365	returned.
232		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
233	Lock names should begin with a unique identifier (for example, cf::map::find	370	Lock names should begin with a unique identifier (for example, cf::map::find
234	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
235		372
236	=cut	373	=item $locked = cf::lock_active $string
237		374
238	our %LOCK;	375	Return true if the lock is currently active, i.e. somebody has locked it.
		376
		377	=cut
		378
		379	our $LOCKS = new Coro::SemaphoreSet;
239		380
240	sub lock_wait($) {	381	sub lock_wait($) {
241	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
242
243	# wait for lock, if any
244	while ($LOCK{$key}) {
245	push @{ $LOCK{$key} }, $Coro::current;
246	Coro::schedule;
247	}
248	}	383	}
249		384
250	sub lock_acquire($) {	385	sub lock_acquire($) {
251	my ($key) = @_;	386	$LOCKS->guard ($_[0])
		387	}
252		388
253	# wait, to be sure we are not locked	389	sub lock_active($) {
254	lock_wait $key;	390	$LOCKS->count ($_[0]) < 1
255
256	$LOCK{$key} = [];
257
258	Coro::guard {
259	# wake up all waiters, to be on the safe side
260	$_->ready for @{ delete $LOCK{$key} };
261	}
262	}	391	}
263		392
264	sub freeze_mainloop {	393	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
266		395
267	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
268	$TICK_WATCHER->start;	397	}
269	$WRITE_RUNTIME_WATCHER->start;	398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
270	};	457	}
271	$WRITE_RUNTIME_WATCHER->stop;	458	};
272	$TICK_WATCHER->stop;	459
273	$guard	460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
274	}	472	}
275		473
276	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
277		475
278	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
283		481
284	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
285		483
286	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
287		485
288	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
289	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
290	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
291		490
292	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
293	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
294	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
295	fast or be very important.	494	fast or be very important.
…		…
298		497
299	sub sync_job(&) {	498	sub sync_job(&) {
300	my ($job) = @_;	499	my ($job) = @_;
301		500
302	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
303	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
304	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
305		506
306	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
307	# (but this is cancel-safe)	508
308	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
309		510
310	my $busy = 1;	511	my $busy = 1;
311	my @res;	512	my @res;
312		513
313	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
314	@res = eval { $job->() };	516	@res = eval { $job->() };
315	warn $@ if $@;	517	warn $@ if $@;
316	undef $busy;	518	undef $busy;
317	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
318		520
319	while ($busy) {	521	while ($busy) {
320	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
321	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
322		532
323	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
324	} else {	534	} else {
325	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
326		536
…		…
346	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
347		557
348	$coro	558	$coro
349	}	559	}
350		560
351	sub write_runtime {	561	=item fork_call { }, $args
352	my $runtime = cf::localdir . "/runtime";
353		562
354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	563	Executes the given code block with the given arguments in a seperate
355	or return;	564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
356		567
357	my $value = $cf::RUNTIME + 90 + 10;	568	=cut
358	# 10 is the runtime save interval, for a monotonic clock
359	# 60 allows for the watchdog to kill the server.
360		569
361	(aio_write $fh, 0, (length $value), $value, 0) <= 0	570	sub fork_call(&@) {
362	and return;	571	my ($cb, @args) = @_;
363		572
364	# always fsync - this file is important	573	# we seemingly have to make a local copy of the whole thing,
365	aio_fsync $fh	574	# otherwise perl prematurely frees the stuff :/
366	and return;	575	# TODO: investigate and fix (likely this will be rather laborious)
367		576
368	close $fh	577	my @res = Coro::Util::fork_eval {
369	or return;	578	reset_signals;
		579	&$cb
		580	}, @args;
370		581
371	aio_rename "$runtime~", $runtime	582	wantarray ? @res : $res[-1]
372	and return;	583	}
373		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
		639	};
		640	cf::cleanup "db_open(db): $@" if $@;
		641
		642	$db
		643	}
		644
		645	our $DB;
		646
		647	sub db_init {
		648	cf::sync_job {
		649	$DB ||= db_table "db";
		650	};
		651	}
		652
		653	sub db_get($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
374	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
		737	}
		738
		739	=item cf::datalog type => key => value, ...
		740
		741	Log a datalog packet of the given type with the given key-value pairs.
		742
		743	=cut
		744
		745	sub datalog($@) {
		746	my ($type, %kv) = @_;
		747	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
375	}	748	}
376		749
377	=back	750	=back
378		751
379	=cut	752	=cut
380		753
381	#############################################################################	754	#############################################################################
382		755
383	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
384		757
385	Many objects in crossfire are so-called attachable objects. That means you can	758	Many objects in deliantra are so-called attachable objects. That means you can
386	attach callbacks/event handlers (a collection of which is called an "attachment")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
387	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
388		761
389	In the following description, CLASS can be any of C<global>, C<object>	762	In the following description, CLASS can be any of C<global>, C<object>
390	C<player>, C<client> or C<map> (i.e. the attachable objects in	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
391	crossfire+).	764	Deliantra).
392		765
393	=over 4	766	=over 4
394		767
395	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
396		769
…		…
440	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
441		814
442	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
443	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
444		817
445	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
446	that are attached at load/instantiate time, thus the need for a name.	819	that are attached at load/instantiate time, thus the need for a name.
447		820
448	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
449		822
450	=over 4	823	=over 4
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
560		933
561	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		938
566	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	940	my $pkg = shift @arg;
568		941
569	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
599	}	972	}
600		973
601	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
602	} else {	975	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	977	}
605		978
606	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
607	}	980	}
608		981
…		…
610	if (ref $_[0]) {	983	if (ref $_[0]) {
611	_object_attach @_;	984	_object_attach @_;
612	} else {	985	} else {
613	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
614	}	987	}
		988	_recalc_want;
615	};	989	};
616		990
617	# all those should be optimised	991	# all those should be optimised
618	sub cf::attachable::detach {	992	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
623	reattach ($obj);	997	reattach ($obj);
624	} else {	998	} else {
625	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
626	}	1000	}
		1001	_recalc_want;
627	};	1002	};
628		1003
629	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
631		1006
…		…
646	";	1021	";
647	die if $@;	1022	die if $@;
648	}	1023	}
649		1024
650	our $override;	1025	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		1027
653	sub override {	1028	sub override {
654	$override = 1;	1029	$override = 1;
655	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
656	}	1031	}
657		1032
658	sub do_invoke {	1033	sub do_invoke {
659	my $event = shift;	1034	my $event = shift;
660	my $callbacks = shift;	1035	my $callbacks = shift;
661		1036
662	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
663		1038
664	local $override;	1039	local $override;
665		1040
666	for (@$callbacks) {	1041	for (@$callbacks) {
667	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
676	}	1051	}
677		1052
678	0	1053	0
679	}	1054	}
680		1055
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		1057
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		1059
685	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
686		1061
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	1063	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		1065
691	=back	1066	=back
692		1067
693	=cut	1068	=cut
694		1069
695	#############################################################################	1070	#############################################################################
696	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
697		1114
698	sub reattach {	1115	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1117	my ($obj) = @_;
701		1118
		1119	# no longer needed after getting rid of delete_package?
702	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
703		1121
704	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
705		1123
706	@$registry = ();	1124	@$registry = ();
707		1125
…		…
722	cf::attachable->attach (	1140	cf::attachable->attach (
723	prio => -1000000,	1141	prio => -1000000,
724	on_instantiate => sub {	1142	on_instantiate => sub {
725	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
726		1144
727	$data = from_json $data;	1145	$data = decode_json $data;
728		1146
729	for (@$data) {	1147	for (@$data) {
730	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
731		1149
732	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
748	sub object_freezer_save {	1166	sub object_freezer_save {
749	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
750		1168
751	sync_job {	1169	sync_job {
752	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
753	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
754	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
755		1174
756	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
758	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
759	aio_fsync $fh if $cf::USE_FSYNC;	1178	if ($cf::USE_FSYNC) {
		1179	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;
		1180	aio_fsync $fh;
		1181	}
760	close $fh;	1182	aio_close $fh;
761		1183
762	if (@$objs) {	1184	if (@$objs) {
763	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1185	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
764	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
765	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
766	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
767	aio_fsync $fh if $cf::USE_FSYNC;	1189	if ($cf::USE_FSYNC) {
		1190	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;
		1191	aio_fsync $fh;
		1192	}
768	close $fh;	1193	aio_close $fh;
769	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
770	}	1195	}
771	} else {	1196	} else {
772	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
773	}	1198	}
774		1199
775	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
776	} else {	1204	} else {
777	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
778	}	1206	}
779	} else {	1207	} else {
780	aio_unlink $filename;	1208	aio_unlink $filename;
781	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
782	}	1210	}
783
784	#d##TODO# nuke non .map-files if exist
785	if ($filename =~ s/\.map$//) {
786	aio_unlink $filename;
787	aio_unlink "$filename.pst";
788	}
789	}	1211	};
790	}	1212	}
791		1213
792	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
793	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
794		1216
…		…
799		1221
800	sub object_thawer_load {	1222	sub object_thawer_load {
801	my ($filename) = @_;	1223	my ($filename) = @_;
802		1224
803	my ($data, $av);	1225	my ($data, $av);
804
805	#d#TODO remove .map if file does not exist
806	aio_stat $filename and $filename =~ s/\.map$//;
807		1226
808	(aio_load $filename, $data) >= 0	1227	(aio_load $filename, $data) >= 0
809	or return;	1228	or return;
810		1229
811	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
813	or return;	1232	or return;
		1233
814	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
815	}	1236	}
816		1237
		1238	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
819	return ($data, $av);	1242	($data, $av)
820	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
821		1250
822	#############################################################################	1251	#############################################################################
823	# command handling &c	1252	# command handling &c
824		1253
825	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1268	}
840		1269
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1271
843	Register a callbackf ro execution when the client sends an extcmd packet.	1272	Register a callback for execution when the client sends an (synchronous)
		1273	extcmd packet. Ext commands will be processed in the order they are
		1274	received by the server, like other user commands. The first argument is
		1275	the logged-in player. Ext commands can only be processed after a player
		1276	has logged in successfully.
844		1277
845	If the callback returns something, it is sent back as if reply was being	1278	If the callback returns something, it is sent back as if reply was being
846	called.	1279	called.
847		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
848	=cut	1292	=cut
849		1293
850	sub register_extcmd {	1294	sub register_extcmd {
851	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
852		1296
853	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
854	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
855		1307
856	cf::player->attach (	1308	cf::player->attach (
857	on_command => sub {	1309	on_command => sub {
858	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
859		1311
…		…
867	cf::override;	1319	cf::override;
868	},	1320	},
869	on_extcmd => sub {	1321	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
871		1323
872	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1325
874	if (ref $msg) {	1326	if (ref $msg) {
		1327	my ($type, $reply, @payload) =
		1328	"ARRAY" eq ref $msg
		1329	? @$msg
		1330	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1331
		1332	my @reply;
		1333
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
880	} else {	1341	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1343	}
883		1344
884	cf::override;	1345	cf::override;
885	},	1346	},
886	);	1347	);
887		1348
		1349	# "readahead" all extensions
888	sub load_extension {	1350	sub cache_extensions {
889	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
890		1352
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1356	}
916	die $@;
917	}	1357	};
918		1358
919	push @EXTS, $pkg;	1359	$grp
920	}	1360	}
921		1361
922	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
923	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1367	next unless -r $path;
925	eval {	1368
926	load_extension $ext;	1369	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1370	my $base = $1;
		1371	my $pkg = $1;
		1372	$pkg =~ s/[^[:word:]]/_/g;
		1373	$pkg = "ext::$pkg";
		1374
		1375	open my $fh, "<:utf8", $path
		1376	or die "$path: $!";
		1377
		1378	my $source = do { local $/; <$fh> };
		1379
		1380	my %ext = (
		1381	path => $path,
		1382	base => $base,
		1383	pkg => $pkg,
		1384	);
		1385
		1386	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1387	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1388
		1389	$ext{source} =
		1390	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1391	. "#line 1 \"$path\"\n{\n"
		1392	. $source
		1393	. "\n};\n1";
		1394
		1395	$todo{$base} = \%ext;
		1396	}
		1397
		1398	my %done;
		1399	while (%todo) {
		1400	my $progress;
		1401
		1402	while (my ($k, $v) = each %todo) {
		1403	for (split /,\s*/, $v->{meta}{depends}) {
		1404	goto skip
		1405	unless exists $done{$_};
		1406	}
		1407
		1408	warn "... loading '$k' into '$v->{pkg}'\n";
		1409
		1410	unless (eval $v->{source}) {
		1411	my $msg = $@ ? "$v->{path}: $@\n"
		1412	: "$v->{base}: extension inactive.\n";
		1413
		1414	if (exists $v->{meta}{mandatory}) {
		1415	warn $msg;
		1416	cf::cleanup "mandatory extension failed to load, exiting.";
		1417	}
		1418
		1419	warn $msg;
		1420	}
		1421
		1422	$done{$k} = delete $todo{$k};
		1423	push @EXTS, $v->{pkg};
		1424	$progress = 1;
927	1	1425	}
928	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
929	}	1431	};
930	}	1432	}
931		1433
932	#############################################################################	1434	#############################################################################
933		1435
		1436	=back
		1437
934	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
935		1439
936	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
937		1441
938	=cut	1442	=cut
939		1443
940	package cf::player;	1444	package cf::player;
941		1445
…		…
943		1447
944	=head3 cf::player	1448	=head3 cf::player
945		1449
946	=over 4	1450	=over 4
947		1451
		1452	=item cf::player::num_playing
		1453
		1454	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1455
		1456	=cut
		1457
		1458	sub num_playing {
		1459	scalar grep
		1460	$_->ob->map
		1461	&& !$_->hidden
		1462	&& !$_->ob->flag (cf::FLAG_WIZ),
		1463	cf::player::list
		1464	}
		1465
948	=item cf::player::find $login	1466	=item cf::player::find $login
949		1467
950	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
951		1469
952	=cut	1470	=cut
953		1471
954	sub playerdir($) {	1472	sub playerdir($) {
955	cf::localdir	1473	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1474	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1475	}
961		1476
962	sub path($) {	1477	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1478	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1479
965	(playerdir $login) . "/$login.pl"	1480	(playerdir $login) . "/playerdata"
966	}	1481	}
967		1482
968	sub find_active($) {	1483	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1484	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1485	and $cf::PLAYER{$_[0]}->active
…		…
973		1488
974	sub exists($) {	1489	sub exists($) {
975	my ($login) = @_;	1490	my ($login) = @_;
976		1491
977	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1493	or !aio_stat path $login
979	}	1494	}
980		1495
981	sub find($) {	1496	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1498	my $login = $_[0];
984		1499
985	my $guard = cf::lock_acquire "user_find:$login";	1500	my $guard = cf::lock_acquire "user_find:$login";
986		1501
987	$cf::PLAYER{$_[0]} || do {	1502	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1503	# rename old playerfiles to new ones
		1504	#TODO: remove when no longer required
		1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1508	aio_unlink +(playerdir $login) . "/$login.pl";
		1509
		1510	my $f = new_from_file cf::object::thawer path $login
989	or return;	1511	or return;
		1512
		1513	my $pl = cf::player::load_pl $f
		1514	or return;
		1515
		1516	local $cf::PLAYER_LOADING{$login} = $pl;
		1517	$f->resolve_delayed_derefs;
990	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
991	}	1519	}
992	}	1520	}
993	}	1521	}
994		1522
…		…
1003	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
1004		1532
1005	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
1007		1535
		1536	cf::get_slot 0.01;
		1537
1008	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
1009	Coro::cede;	1539	cf::cede_to_tick;
1010	}	1540	}
1011		1541
1012	sub new($) {	1542	sub new($) {
1013	my ($login) = @_;	1543	my ($login) = @_;
1014		1544
…		…
1020	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
1021		1551
1022	$self	1552	$self
1023	}	1553	}
1024		1554
		1555	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1556
		1557	=cut
		1558
		1559	sub send_msg {
		1560	my $ns = shift->ns
		1561	or return;
		1562	$ns->send_msg (@_);
		1563	}
		1564
1025	=item $pl->quit_character	1565	=item $pl->quit_character
1026		1566
1027	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1029		1569
1030	=cut	1570	=cut
1031		1571
1032	sub quit_character {	1572	sub quit_character {
1033	my ($pl) = @_;	1573	my ($pl) = @_;
1034		1574
		1575	my $name = $pl->ob->name;
		1576
1035	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1036	$pl->password ("*"); # this should lock out the player until we nuked the dir	1578	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1037		1579
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1039	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1041	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1042		1586
1043	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1589	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1590	delete $cf::PLAYER{$pl->ob->name};
1047	$pl->destroy;	1591	$pl->destroy;
		1592
		1593	my $prefix = qr<^~\Q$name\E/>;
		1594
		1595	# nuke player maps
		1596	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1597
1048	IO::AIO::aio_rmtree $temp;	1598	IO::AIO::aio_rmtree $temp;
		1599	}
		1600
		1601	=item $pl->kick
		1602
		1603	Kicks a player out of the game. This destroys the connection.
		1604
		1605	=cut
		1606
		1607	sub kick {
		1608	my ($pl, $kicker) = @_;
		1609
		1610	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1611	$pl->killer ("kicked");
		1612	$pl->ns->destroy;
1049	}	1613	}
1050		1614
1051	=item cf::player::list_logins	1615	=item cf::player::list_logins
1052		1616
1053	Returns am arrayref of all valid playernames in the system, can take a	1617	Returns am arrayref of all valid playernames in the system, can take a
1054	while and may block, so not sync_job-capable, ever.	1618	while and may block, so not sync_job-capable, ever.
1055		1619
1056	=cut	1620	=cut
1057		1621
1058	sub list_logins {	1622	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1623	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1624	or return [];
1061		1625
1062	my @logins;	1626	my @logins;
1063		1627
1064	for my $login (@$dirs) {	1628	for my $login (@$dirs) {
		1629	my $path = path $login;
		1630
		1631	# a .pst is a dead give-away for a valid player
		1632	# if no pst file found, open and chekc for blocked users
		1633	if (aio_stat "$path.pst") {
1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1066	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1067	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1068		1638
1069	utf8::decode $login;	1639	utf8::decode $login;
1070	push @logins, $login;	1640	push @logins, $login;
1071	}	1641	}
1072		1642
…		…
1099	}	1669	}
1100		1670
1101	\@paths	1671	\@paths
1102	}	1672	}
1103		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1105		1679
1106	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1107		1681
1108	=cut	1682	=cut
1109		1683
1110	sub ext_reply($$$%) {	1684	sub ext_reply($$@) {
1111	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1112		1686
1113	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1114
1115	$self->send ("ext " . cf::to_json \%msg);
1116	}	1688	}
1117		1689
1118	package cf;	1690	=item $player->ext_msg ($type, @msg)
		1691
		1692	Sends an ext event to the client.
		1693
		1694	=cut
		1695
		1696	sub ext_msg($$@) {
		1697	my ($self, $type, @msg) = @_;
		1698
		1699	$self->ns->ext_msg ($type, @msg);
		1700	}
		1701
		1702	=head3 cf::region
		1703
		1704	=over 4
		1705
		1706	=cut
		1707
		1708	package cf::region;
		1709
		1710	=item cf::region::find_by_path $path
		1711
		1712	Tries to decuce the likely region for a map knowing only its path.
		1713
		1714	=cut
		1715
		1716	sub find_by_path($) {
		1717	my ($path) = @_;
		1718
		1719	my ($match, $specificity);
		1720
		1721	for my $region (list) {
		1722	if ($region->{match} && $path =~ $region->{match}) {
		1723	($match, $specificity) = ($region, $region->specificity)
		1724	if $region->specificity > $specificity;
		1725	}
		1726	}
		1727
		1728	$match
		1729	}
1119		1730
1120	=back	1731	=back
1121
1122		1732
1123	=head3 cf::map	1733	=head3 cf::map
1124		1734
1125	=over 4	1735	=over 4
1126		1736
…		…
1138	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1139	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1140		1750
1141	sub generate_random_map {	1751	sub generate_random_map {
1142	my ($self, $rmp) = @_;	1752	my ($self, $rmp) = @_;
		1753
		1754	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1755
1143	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1144	$self->_create_random_map (	1757	$self->_create_random_map (
1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1181	my ($self, $merge) = @_;	1794	my ($self, $merge) = @_;
1182		1795
1183	# we have to keep some variables in memory intact	1796	# we have to keep some variables in memory intact
1184	local $self->{path};	1797	local $self->{path};
1185	local $self->{load_path};	1798	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1799
1189	$self->SUPER::thawer_merge ($merge);	1800	$self->SUPER::thawer_merge ($merge);
1190	}	1801	}
1191		1802
1192	sub normalise {	1803	sub normalise {
…		…
1239	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1240	return $self;	1851	return $self;
1241	}	1852	}
1242	}	1853	}
1243		1854
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1245	()	1856	()
1246	}	1857	}
1247		1858
1248	sub init {	1859	sub init {
1249	my ($self) = @_;	1860	my ($self) = @_;
…		…
1264		1875
1265	# the original (read-only) location	1876	# the original (read-only) location
1266	sub load_path {	1877	sub load_path {
1267	my ($self) = @_;	1878	my ($self) = @_;
1268		1879
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1880	"$MAPDIR/$self->{path}.map"
1270	}	1881	}
1271		1882
1272	# the temporary/swap location	1883	# the temporary/swap location
1273	sub save_path {	1884	sub save_path {
1274	my ($self) = @_;	1885	my ($self) = @_;
1275		1886
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1888	"$TMPDIR/$path.map"
1278	}	1889	}
1279		1890
1280	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1281	sub uniq_path {	1892	sub uniq_path {
1282	my ($self) = @_;	1893	my ($self) = @_;
1283		1894
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1896	"$UNIQUEDIR/$path"
1286	}	1897	}
1287		1898
1288	# and all this just because we cannot iterate over	1899	sub decay_objects {
1289	# all maps in C++...
1290	sub change_all_map_light {
1291	my ($change) = @_;	1900	my ($self) = @_;
1292		1901
1293	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1294	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1295	}	1905	}
1296		1906
1297	sub unlink_save {	1907	sub unlink_save {
1298	my ($self) = @_;	1908	my ($self) = @_;
1299		1909
1300	utf8::encode (my $save = $self->save_path);	1910	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1912	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1303
1304	#d#TODO remove .map and also nuke
1305	$save =~ s/\.map// or return;#d#
1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1308	}	1913	}
1309		1914
1310	sub load_header_from($) {	1915	sub load_header_from($) {
1311	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1312		1917
1313	utf8::encode $path;	1918	utf8::encode $path;
1314	#aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1315	# or return;
1316
1317	$self->_load_header ($path)
1318	or return;	1920	or return;
		1921
		1922	$self->_load_header ($f)
		1923	or return;
		1924
		1925	local $MAP_LOADING{$self->{path}} = $self;
		1926	$f->resolve_delayed_derefs;
1319		1927
1320	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1321		1929
1322	1	1930	1
1323	}	1931	}
…		…
1362	$self->load_header_orig	1970	$self->load_header_orig
1363	or return;	1971	or return;
1364	$self->prepare_orig;	1972	$self->prepare_orig;
1365	}	1973	}
1366		1974
		1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
		1977
		1978	$self->default_region (cf::region::find_by_path $self->{path})
		1979	unless $self->default_region;
		1980
1367	1	1981	1
1368	}	1982	}
1369		1983
1370	sub find;	1984	sub find;
1371	sub find {	1985	sub find {
1372	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1373		1987
1374	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1375		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1376	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1377		1992
1378	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1379	my $guard = cf::lock_acquire "map_find:$path";
1380	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1381	or return;	1995	or return;
1382		1996
1383	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1384		1998
1385	$map->load_header	1999	$map->load_header
1386	or return;	2000	or return;
1387		2001
1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1389	# doing this can freeze the server in a sync job, obviously	2003	# doing this can freeze the server in a sync job, obviously
1390	#$cf::WAIT_FOR_TICK->wait;	2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1391	$map->reset;	2007	$map->reset;
1392	undef $guard;
1393	return find $path;	2008	return find $path;
1394	}	2009	}
1395		2010
1396	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1397	}	2012	}
…		…
1404	my ($self) = @_;	2019	my ($self) = @_;
1405		2020
1406	local $self->{deny_reset} = 1; # loading can take a long time	2021	local $self->{deny_reset} = 1; # loading can take a long time
1407		2022
1408	my $path = $self->{path};	2023	my $path = $self->{path};
		2024
		2025	{
1409	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1410		2027
		2028	return unless $self->valid;
1411	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1412		2030
1413	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1414		2032
1415	$self->alloc;	2033	$self->alloc;
1416		2034
1417	$self->pre_load;	2035	$self->pre_load;
		2036	cf::cede_to_tick;
1418		2037
1419	$self->_load_objects ($self->{load_path}, 1)	2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
		2040	$self->_load_objects ($f)
1420	or return;	2041	or return;
1421		2042
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1423	if delete $self->{load_original};	2044	if delete $self->{load_original};
1424		2045
1425	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2047	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2050	$self->clear_unique_items;
1429	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1430	}	2054	}
1431	}	2055	}
1432		2056
1433	Coro::cede;	2057	$f->resolve_delayed_derefs;
1434		2058
		2059	cf::cede_to_tick;
1435	# now do the right thing for maps	2060	# now do the right thing for maps
1436	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1437
1438	unless ($self->{deny_activate}) {
1439	$self->decay_objects;
1440	$self->fix_auto_apply;
1441	$self->update_buttons;
1442	Coro::cede;
1443	$self->set_darkness_map;
1444	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	2063	unless $self->difficulty;
1446	Coro::cede;	2064	cf::cede_to_tick;
		2065
		2066	unless ($self->{deny_activate}) {
		2067	$self->decay_objects;
		2068	$self->fix_auto_apply;
		2069	$self->update_buttons;
		2070	cf::cede_to_tick;
1447	$self->activate;	2071	$self->activate;
		2072	}
		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
		2077	$self->in_memory (cf::MAP_ACTIVE);
1448	}	2078	}
1449		2079
1450	$self->post_load;	2080	$self->post_load;
1451
1452	$self->in_memory (cf::MAP_IN_MEMORY);
1453	}	2081	}
1454		2082
1455	sub customise_for {	2083	sub customise_for {
1456	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1457		2085
1458	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1459	if $self->per_player;	2087	if $self->per_player;
1460		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1461	$self	2092	$self
1462	}	2093	}
1463		2094
1464	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1465	sub load_diag {	2096	sub load_neighbours {
1466	my ($map) = @_;	2097	my ($map) = @_;
1467		2098
1468	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1469		2100
1470	for (0 .. 3) {	2101	for (0 .. 3) {
1471	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1472	or next;	2103	or next;
1473	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1474	or next;	2105	or next;
1475	$neigh->load;	2106	$neigh->load;
1476		2107
		2108	push @neigh,
1477	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1478	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1479	}	2111	}
1480		2112
1481	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1482	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1483	or next;	2116	or next;
1484	$neigh->load;	2117	$neigh->load;
1485	}	2118	}
1486	}	2119	}
1487		2120
…		…
1492	}	2125	}
1493		2126
1494	sub do_load_sync {	2127	sub do_load_sync {
1495	my ($map) = @_;	2128	my ($map) = @_;
1496		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1497	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1498	}	2134	}
1499		2135
1500	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1501	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1502		2138
1503	sub find_async {	2139	sub find_async {
1504	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1505		2141
1506	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1507		2143
1508	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1509	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1510	}	2146	}
1511		2147
1512	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1513	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1514	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1515	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1516	my $map = find $path	2155	if (my $map = find $k) {
1517	or next;
1518	$map->load;	2156	$map->load if $v;
		2157	}
1519		2158
1520	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1521	}	2160	}
1522	}	2161	}
1523	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1524	};	2163	};
1525	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1528	}	2167	}
1529		2168
1530	sub save {	2169	sub save {
1531	my ($self) = @_;	2170	my ($self) = @_;
1532		2171
1533	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1534		2173
1535	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1536		2175
1537	return unless $self->dirty;	2176	return unless $self->dirty;
1538		2177
…		…
1544	return if $self->{deny_save};	2183	return if $self->{deny_save};
1545		2184
1546	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1547		2186
1548	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1549	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1550	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1551		2193
1552	if ($uniq) {	2194	if ($uniq) {
1553	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1554	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1555	} else {	2197	} else {
…		…
1561	my ($self) = @_;	2203	my ($self) = @_;
1562		2204
1563	# save first because save cedes	2205	# save first because save cedes
1564	$self->save;	2206	$self->save;
1565		2207
1566	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1567		2209
1568	return if $self->players;	2210	return if $self->players;
1569	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1570	return if $self->{deny_save};	2212	return if $self->{deny_save};
1571		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1572	$self->clear;	2218	$self->clear;
1573	$self->in_memory (cf::MAP_SWAPPED);
1574	}	2219	}
1575		2220
1576	sub reset_at {	2221	sub reset_at {
1577	my ($self) = @_;	2222	my ($self) = @_;
1578		2223
1579	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
1581	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1582		2226
1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1585		2229
…		…
1596	my ($self) = @_;	2240	my ($self) = @_;
1597		2241
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		2243
1600	return if $self->players;	2244	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#
1602		2245
1603	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	# need to save uniques path
		2251	unless ($self->{deny_save}) {
		2252	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2253
		2254	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2255	if $uniq;
		2256	}
1604		2257
1605	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1606		2259
1607	$self->in_memory (cf::MAP_SWAPPED);	2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1608	$self->clear;	2262	$self->clear;
1609
1610	$_->clear_links_to ($self) for values %cf::MAP;
1611		2263
1612	$self->unlink_save;	2264	$self->unlink_save;
1613	$self->destroy;	2265	$self->destroy;
1614	}	2266	}
1615		2267
1616	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1617		2269
1618	sub nuke {	2270	sub nuke {
1619	my ($self) = @_;	2271	my ($self) = @_;
1620		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
1621	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1622		2277
1623	$self->unlink_save;	2278	$self->unlink_save;
1624		2279
1625	bless $self, "cf::map";	2280	bless $self, "cf::map";
1626	delete $self->{deny_reset};	2281	delete $self->{deny_reset};
1627	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1628	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1629	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1630		2285
1631	$cf::MAP{$self->path} = $self;	2286	$cf::MAP{$self->path} = $self;
		2287	}
1632		2288
1633	$self->reset; # polite request, might not happen	2289	$self->reset; # polite request, might not happen
		2290	}
		2291
		2292	=item $maps = cf::map::tmp_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	maps. May block.
		2296
		2297	=cut
		2298
		2299	sub tmp_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise $_
		2305	: ()
		2306	} @{ aio_readdir $TMPDIR or [] }
		2307	]
		2308	}
		2309
		2310	=item $maps = cf::map::random_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	random maps. May block.
		2314
		2315	=cut
		2316
		2317	sub random_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise "?random/$_"
		2323	: ()
		2324	} @{ aio_readdir $RANDOMDIR or [] }
		2325	]
1634	}	2326	}
1635		2327
1636	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1637		2329
1638	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1639	instantiated unique items. May block.	2331	instantiated unique items. May block.
1640		2332
1641	=cut	2333	=cut
1642		2334
1643	sub unique_maps() {	2335	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2336	[
1645	or return;	2337	map {
1646
1647	my @paths;
1648
1649	for (@$files) {
1650	utf8::decode $_;	2338	utf8::decode $_;
1651	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1652	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1653		2341	? ()
1654	push @paths, cf::map::normalise $_;	2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
1655	}	2344	]
1656
1657	\@paths
1658	}	2345	}
1659		2346
1660	package cf;	2347	=item cf::map::static_maps
		2348
		2349	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2350	file in the shared directory excluding F</styles> and F</editor>). May
		2351	block.
		2352
		2353	=cut
		2354
		2355	sub static_maps() {
		2356	my @dirs = "";
		2357	my @maps;
		2358
		2359	while (@dirs) {
		2360	my $dir = shift @dirs;
		2361
		2362	next if $dir eq "/styles" || $dir eq "/editor";
		2363
		2364	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2365	or return;
		2366
		2367	for (@$files) {
		2368	s/\.map$// or next;
		2369	utf8::decode $_;
		2370	push @maps, "$dir/$_";
		2371	}
		2372
		2373	push @dirs, map "$dir/$_", @$dirs;
		2374	}
		2375
		2376	\@maps
		2377	}
1661		2378
1662	=back	2379	=back
1663		2380
1664	=head3 cf::object	2381	=head3 cf::object
1665		2382
…		…
1669		2386
1670	=over 4	2387	=over 4
1671		2388
1672	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1673		2390
1674	Returns the inventory of the object _and_ their inventories, recursively.	2391	Returns the inventory of the object I<and> their inventories, recursively,
		2392	but I<not> the object itself.
1675		2393
1676	=cut	2394	=cut
1677		2395
1678	sub inv_recursive_;	2396	sub inv_recursive_;
1679	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1682		2400
1683	sub inv_recursive {	2401	sub inv_recursive {
1684	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1685	}	2403	}
1686		2404
		2405	=item $ref = $ob->ref
		2406
		2407	Creates and returns a persistent reference to an object that can be stored as a string.
		2408
		2409	=item $ob = cf::object::deref ($refstring)
		2410
		2411	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2412	even if the object actually exists. May block.
		2413
		2414	=cut
		2415
		2416	sub deref {
		2417	my ($ref) = @_;
		2418
		2419	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2420	my ($uuid, $name) = ($1, $2);
		2421	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2422	or return;
		2423	$pl->ob->uuid eq $uuid
		2424	or return;
		2425
		2426	$pl->ob
		2427	} else {
		2428	warn "$ref: cannot resolve object reference\n";
		2429	undef
		2430	}
		2431	}
		2432
1687	package cf;	2433	package cf;
1688		2434
1689	=back	2435	=back
1690		2436
1691	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1697	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1698	can be C<undef>. Does the right thing when the player is currently in a	2444	can be C<undef>. Does the right thing when the player is currently in a
1699	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1700		2446
1701	=cut	2447	=cut
		2448
		2449	our $SAY_CHANNEL = {
		2450	id => "say",
		2451	title => "Map",
		2452	reply => "say ",
		2453	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2454	};
		2455
		2456	our $CHAT_CHANNEL = {
		2457	id => "chat",
		2458	title => "Chat",
		2459	reply => "chat ",
		2460	tooltip => "Player chat and shouts, global to the server.",
		2461	};
1702		2462
1703	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1704	# with dialog boxes.	2464	# with dialog boxes.
1705	#TODO: the first argument must go, split into a $npc->reply_to ( method	2465	#TODO: the first argument must go, split into a $npc->reply_to ( method
1706	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1708		2468
1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1710		2470
1711	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1712	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1713	} else {	2474	} else {
		2475	my $pl = $self->contr;
		2476
		2477	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2478	my $dialog = $pl->{npc_dialog};
		2479	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2480
		2481	} else {
1714	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1715	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1716	}	2485	}
		2486	}
		2487
		2488	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	=cut
		2491
		2492	sub cf::object::send_msg {
		2493	my $pl = shift->contr
		2494	or return;
		2495	$pl->send_msg (@_);
1717	}	2496	}
1718		2497
1719	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1720		2499
1721	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1734		2513
1735	=item $player_object->enter_link	2514	=item $player_object->enter_link
1736		2515
1737	Freezes the player and moves him/her to a special map (C<{link}>).	2516	Freezes the player and moves him/her to a special map (C<{link}>).
1738		2517
1739	The player should be reasonably safe there for short amounts of time. You	2518	The player should be reasonably safe there for short amounts of time (e.g.
1740	I<MUST> call C<leave_link> as soon as possible, though.	2519	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2520	though, as the palyer cannot control the character while it is on the link
		2521	map.
1741		2522
1742	Will never block.	2523	Will never block.
1743		2524
1744	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1745		2526
…		…
1768	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1769		2550
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		2552
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1774		2555
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1776	}	2557	}
1777		2558
1778	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1780		2563
1781	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1782		2565
1783	unless ($map) {	2566	unless ($map) {
1784	# restore original map position	2567	# restore original map position
…		…
1795	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1796	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1797		2580
1798	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1799	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1800	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1801		2584
1802	$map->load;	2585	$map->load;
1803	$map->load_diag;	2586	$map->load_neighbours;
1804		2587
1805	return unless $self->contr->active;	2588	return unless $self->contr->active;
		2589
		2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2591	$self->enter_map ($map, $x, $y);
		2592
		2593	# only activate afterwards, to support waiting in hooks
1806	$self->activate_recursive;	2594	$self->activate_recursive;
1807	$self->enter_map ($map, $x, $y);
1808	}	2595	}
1809		2596
1810	cf::player->attach (	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1811	on_logout => sub {
1812	my ($pl) = @_;
1813		2598
1814	# abort map switching before logout	2599	Moves the player to the given map-path and coordinates by first freezing
1815	if ($pl->ob->{_link_pos}) {	2600	her, loading and preparing them map, calling the provided $check callback
1816	cf::sync_job {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1817	$pl->ob->leave_link	2602	the new (success) or old (failed) map position. In either case, $done will
1818	};	2603	be called at the end of this process.
1819	}
1820	},
1821	on_login => sub {
1822	my ($pl) = @_;
1823		2604
1824	# try to abort aborted map switching on player login :)	2605	Note that $check will be called with a potentially non-loaded map, so if
1825	# should happen only on crashes	2606	it needs a loaded map it has to call C<< ->load >>.
1826	if ($pl->ob->{_link_pos}) {
1827	$pl->ob->enter_link;
1828	(async {
1829	# we need this sleep as the login has a concurrent enter_exit running
1830	# and this sleep increases chances of the player not ending up in scorn
1831	$pl->ob->reply (undef,
1832	"There was an internal problem at your last logout, "
1833	. "the server will try to bring you to your intended destination in a second.",
1834	cf::NDI_RED);
1835	Coro::Timer::sleep 1;
1836	$pl->ob->leave_link;
1837	})->prio (2);
1838	}
1839	},
1840	);
1841		2607
1842	=item $player_object->goto ($path, $x, $y)
1843
1844	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1845		2611
1846	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1847	my ($self, $path, $x, $y) = @_;	2613	my ($self, $path, $x, $y, $check, $done) = @_;
		2614
		2615	# do generation counting so two concurrent goto's will be executed in-order
		2616	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1848		2617
1849	$self->enter_link;	2618	$self->enter_link;
1850		2619
1851	(async {	2620	(async {
		2621	$Coro::current->{desc} = "player::goto $path $x $y";
		2622
		2623	# *tag paths override both path and x|y
		2624	if ($path =~ /^\*(.*)$/) {
		2625	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2626	my $ob = $obs[rand @obs];
		2627
		2628	# see if we actually can go there
		2629	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2630	$ob = $obs[rand @obs];
		2631	} else {
		2632	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2633	}
		2634	# else put us there anyways for now #d#
		2635
		2636	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2637	} else {
		2638	($path, $x, $y) = (undef, undef, undef);
		2639	}
		2640	}
		2641
1852	my $map = eval {	2642	my $map = eval {
1853	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1854	$map = $map->customise_for ($self) if $map;	2646	$map = $map->customise_for ($self);
		2647	$map = $check->($map) if $check && $map;
		2648	} else {
		2649	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2650	}
		2651
1855	$map	2652	$map
		2653	};
		2654
		2655	if ($@) {
		2656	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2657	LOG llevError | logBacktrace, Carp::longmess $@;
1856	} or	2658	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1860	})->prio (1);	2666	})->prio (1);
1861	}	2667	}
1862		2668
1863	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1864		2670
…		…
1884	}	2690	}
1885		2691
1886	sub prepare_random_map {	2692	sub prepare_random_map {
1887	my ($exit) = @_;	2693	my ($exit) = @_;
1888		2694
1889	my $guard = cf::lock_acquire "exit_prepare:$exit";
1890
1891	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
1892	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
1893	# that depends on the exit object	2697	# that depends on the exit object
1894		2698
1895	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
1897	if ($exit->map) {	2701	if ($exit->map) {
1898	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
1899	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
1900	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
1901	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
1902	}	2708	}
1903		2709
1904	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
1905		2711
1906	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1907	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
1909		2715
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2718	undef $fh;
1913	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
1914		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
1915	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
1916	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
1917	}	2727	}
1918	}	2728	}
1919		2729
1920	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
1921	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
1922		2732
1923	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
1924		2734
1925	if ($exit->slaying eq "/!") {
1926	#TODO: this should de-fi-ni-te-ly not be a sync-job
1927	cf::sync_job { prepare_random_map $exit };
1928	}
1929
1930	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1931	my $hp = $exit->stats->hp;
1932	my $sp = $exit->stats->sp;
1933
1934	$self->enter_link;	2735	$self->enter_link;
1935		2736
1936	(async {	2737	(async {
1937	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
1938	unless (eval {	2740	unless (eval {
		2741	$self->deactivate_recursive; # just to be sure
		2742
		2743	# random map handling
		2744	{
		2745	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2746
		2747	prepare_random_map $exit
		2748	if $exit->slaying eq "/!";
		2749	}
		2750
		2751	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2752	my $x = $exit->stats->hp;
		2753	my $y = $exit->stats->sp;
		2754
1939	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
1940		2756
		2757	# if exit is damned, update players death & WoR home-position
		2758	$self->contr->savebed ($map, $x, $y)
		2759	if $exit->flag (cf::FLAG_DAMNED);
		2760
1941	1;	2761	1
1942	}) {	2762	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
1944	. "I'll try to bring you back to the map you were before. "	2764	. "I'll try to bring you back to the map you were before. "
1945	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
1947		2767
1948	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
1949	$self->leave_link;	2769	$self->leave_link;
1950	}	2770	}
1951	})->prio (1);	2771	})->prio (1);
…		…
1964		2784
1965	sub cf::client::send_drawinfo {	2785	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	2786	my ($self, $text, $flags) = @_;
1967		2787
1968	utf8::encode $text;	2788	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	2790	}
1971		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
		2979	=item $client->ext_msg ($type, @msg)
		2980
		2981	Sends an ext event to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_msg($$@) {
		2986	my ($self, $type, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
		2991	push @msg, msgtype => "event_$type";
		2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
1972		3013
1973	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
1974		3015
1975	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
1976	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3017	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1977	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3018	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1978		3019
1979	Queries can fail, so check the return code. Or don't, as queries will become	3020	Queries can fail, so check the return code. Or don't, as queries will
1980	reliable at some point in the future.	3021	become reliable at some point in the future.
1981		3022
1982	=cut	3023	=cut
1983		3024
1984	sub cf::client::query {	3025	sub cf::client::query {
1985	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
1993	utf8::encode $text;	3034	utf8::encode $text;
1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1995		3036
1996	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
1997	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
1998	}	3041	}
1999		3042
2000	cf::client->attach (	3043	cf::client->attach (
		3044	on_connect => sub {
		3045	my ($ns) = @_;
		3046
		3047	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3048	},
2001	on_reply => sub {	3049	on_reply => sub {
2002	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
2003		3051
2004	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
2005	# get handled first	3053	# get handled first
…		…
2017	} else {	3065	} else {
2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2019	}	3067	}
2020	}	3068	}
2021	},	3069	},
		3070	on_exticmd => sub {
		3071	my ($ns, $buf) = @_;
		3072
		3073	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3074
		3075	if (ref $msg) {
		3076	my ($type, $reply, @payload) =
		3077	"ARRAY" eq ref $msg
		3078	? @$msg
		3079	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3080
		3081	my @reply;
		3082
		3083	if (my $cb = $EXTICMD{$type}) {
		3084	@reply = $cb->($ns, @payload);
		3085	}
		3086
		3087	$ns->ext_reply ($reply, @reply)
		3088	if $reply;
		3089
		3090	} else {
		3091	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3092	}
		3093
		3094	cf::override;
		3095	},
2022	);	3096	);
2023		3097
2024	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
2025		3099
2026	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
2067	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
2068	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
2069		3143
2070	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
2071		3145
2072	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3146	$safe->permit_only (Opcode::opset qw(
		3147	:base_core :base_mem :base_orig :base_math
		3148	grepstart grepwhile mapstart mapwhile
		3149	sort time
		3150	));
2073		3151
2074	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
2075		3153
2076	=pod	3154	=pod
2077		3155
2078	The following fucntions and emthods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
2079		3157
2080	cf::object contr pay_amount pay_player map	3158	cf::object
		3159	contr pay_amount pay_player map x y force_find force_add destroy
		3160	insert remove name archname title slaying race decrease split
		3161	value
		3162
2081	cf::object::player player	3163	cf::object::player
2082	cf::player peaceful	3164	player
2083	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2084		3171
2085	=cut	3172	=cut
2086		3173
2087	for (	3174	for (
2088	["cf::object" => qw(contr pay_amount pay_player map)],	3175	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3176	insert remove inv nrof name archname title slaying race
		3177	decrease split destroy change_exp value msg lore send_msg)],
2089	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2090	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2091	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2092	) {	3181	) {
2093	no strict 'refs';	3182	no strict 'refs';
2094	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2095	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2112	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2113		3202
2114	my $qcode = $code;	3203	my $qcode = $code;
2115	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2116	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2117		3208
2118	local $_;	3209	local $_;
2119	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2120		3211
2121	my $eval =	3212	my $eval =
…		…
2164	=back	3255	=back
2165		3256
2166	=cut	3257	=cut
2167		3258
2168	#############################################################################	3259	#############################################################################
2169
2170	=head2 EXTENSION DATABASE SUPPORT
2171
2172	Crossfire maintains a very simple database for extension use. It can
2173	currently store anything that can be serialised using Storable, which
2174	excludes objects.
2175
2176	The parameter C<$family> should best start with the name of the extension
2177	using it, it should be unique.
2178
2179	=over 4
2180
2181	=item $hashref = cf::db_get $family
2182
2183	Return a hashref for use by the extension C<$family>, which can be
2184	modified. After modifications, you have to call C<cf::db_dirty> or
2185	C<cf::db_sync>.
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database
2190
2191	=item cf::db_put $family => $hashref
2192
2193	Stores the given family hashref into the database. Updates are delayed, if
2194	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_put $family => $key => $value
2197
2198	Stores the given C<$value> in the family hash. Updates are delayed, if you
2199	want the data to be synced to disk immediately, use C<cf::db_sync>.
2200
2201	=item cf::db_dirty
2202
2203	Marks the database as dirty, to be updated at a later time.
2204
2205	=item cf::db_sync
2206
2207	Immediately write the database to disk I<if it is dirty>.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	{
2214	my $path = cf::localdir . "/database.pst";
2215
2216	sub db_load() {
2217	$DB = stat $path ? Storable::retrieve $path : { };
2218	}
2219
2220	my $pid;
2221
2222	sub db_save() {
2223	waitpid $pid, 0 if $pid;
2224	if (0 == ($pid = fork)) {
2225	$DB->{_meta}{version} = 1;
2226	Storable::nstore $DB, "$path~";
2227	rename "$path~", $path;
2228	cf::_exit 0 if defined $pid;
2229	}
2230	}
2231
2232	my $dirty;
2233
2234	sub db_sync() {
2235	db_save if $dirty;
2236	undef $dirty;
2237	}
2238
2239	my $idle = Event->idle (
2240	reentrant => 0,
2241	min => 10,
2242	max => 20,
2243	repeat => 0,
2244	data => WF_AUTOCANCEL,
2245	cb => \&db_sync,
2246	);
2247
2248	sub db_dirty() {
2249	$dirty = 1;
2250	$idle->start;
2251	}
2252
2253	sub db_get($;$) {
2254	@_ >= 2
2255	? $DB->{$_[0]}{$_[1]}
2256	: ($DB->{$_[0]} ||= { })
2257	}
2258
2259	sub db_put($$;$) {
2260	if (@_ >= 3) {
2261	$DB->{$_[0]}{$_[1]} = $_[2];
2262	} else {
2263	$DB->{$_[0]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267
2268	cf::global->attach (
2269	prio => 10000,
2270	on_cleanup => sub {
2271	db_sync;
2272	},
2273	);
2274	}
2275
2276	#############################################################################
2277	# the server's init and main functions	3260	# the server's init and main functions
2278		3261
		3262	sub load_facedata($) {
		3263	my ($path) = @_;
		3264
		3265	# HACK to clear player env face cache, we need some signal framework
		3266	# for this (global event?)
		3267	%ext::player_env::MUSIC_FACE_CACHE = ();
		3268
		3269	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3270
		3271	warn "loading facedata from $path\n";
		3272
		3273	my $facedata;
		3274	0 < aio_load $path, $facedata
		3275	or die "$path: $!";
		3276
		3277	$facedata = Coro::Storable::thaw $facedata;
		3278
		3279	$facedata->{version} == 2
		3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3281
		3282	# patch in the exptable
		3283	$facedata->{resource}{"res/exp_table"} = {
		3284	type => FT_RSRC,
		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3286	};
		3287	cf::cede_to_tick;
		3288
		3289	{
		3290	my $faces = $facedata->{faceinfo};
		3291
		3292	while (my ($face, $info) = each %$faces) {
		3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3294
		3295	cf::face::set_visibility $idx, $info->{visibility};
		3296	cf::face::set_magicmap $idx, $info->{magicmap};
		3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3299
		3300	cf::cede_to_tick;
		3301	}
		3302
		3303	while (my ($face, $info) = each %$faces) {
		3304	next unless $info->{smooth};
		3305
		3306	my $idx = cf::face::find $face
		3307	or next;
		3308
		3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
		3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3312	} else {
		3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3314	}
		3315
		3316	cf::cede_to_tick;
		3317	}
		3318	}
		3319
		3320	{
		3321	my $anims = $facedata->{animinfo};
		3322
		3323	while (my ($anim, $info) = each %$anims) {
		3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3325	cf::cede_to_tick;
		3326	}
		3327
		3328	cf::anim::invalidate_all; # d'oh
		3329	}
		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3365
		3366	1
		3367	}
		3368
		3369	cf::global->attach (on_resource_update => sub {
		3370	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3371	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3372
		3373	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3374	my $sound = $soundconf->{compat}[$_]
		3375	or next;
		3376
		3377	my $face = cf::face::find "sound/$sound->[1]";
		3378	cf::sound::set $sound->[0] => $face;
		3379	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3380	}
		3381
		3382	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3383	my $face = cf::face::find "sound/$v";
		3384	cf::sound::set $k => $face;
		3385	}
		3386	}
		3387	});
		3388
		3389	register_exticmd fx_want => sub {
		3390	my ($ns, $want) = @_;
		3391
		3392	while (my ($k, $v) = each %$want) {
		3393	$ns->fx_want ($k, $v);
		3394	}
		3395	};
		3396
2279	sub load_resources {	3397	sub load_resource_file($) {
2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3398	my $guard = lock_acquire "load_resource_file";
		3399
		3400	my $status = load_resource_file_ $_[0];
		3401	get_slot 0.1, 100;
		3402	cf::arch::commit_load;
		3403
		3404	$status
		3405	}
		3406
		3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
		3412	load_resource_file "$MAPDIR/regions"
2281	or die "unable to load regions file\n";#d#	3413	or die "unable to load regions file\n";
2282	}
2283		3414
2284	sub cfg_load {	3415	for (cf::region::list) {
		3416	$_->{match} = qr/$_->{match}/
		3417	if exists $_->{match};
		3418	}
		3419	}
		3420
		3421	sub reload_facedata {
		3422	load_facedata "$DATADIR/facedata"
		3423	or die "unable to load facedata\n";
		3424	}
		3425
		3426	sub reload_archetypes {
		3427	load_resource_file "$DATADIR/archetypes"
		3428	or die "unable to load archetypes\n";
		3429	}
		3430
		3431	sub reload_treasures {
		3432	load_resource_file "$DATADIR/treasures"
		3433	or die "unable to load treasurelists\n";
		3434	}
		3435
		3436	sub reload_resources {
		3437	warn "reloading resource files...\n";
		3438
		3439	reload_facedata;
		3440	reload_archetypes;
		3441	reload_regions;
		3442	reload_treasures;
		3443
		3444	warn "finished reloading resource files\n";
		3445	}
		3446
		3447	sub reload_config {
		3448	warn "reloading config file...\n";
		3449
2285	open my $fh, "<:utf8", cf::confdir . "/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2286	or return;	3451	or return;
2287		3452
2288	local $/;	3453	local $/;
2289	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2290		3455
2291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2292		3457
2293	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3458	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2294	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3459	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2299	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2300	};	3465	};
2301	warn $@ if $@;	3466	warn $@ if $@;
2302	}	3467	}
2303	}
2304		3468
2305	sub init {	3469	warn "finished reloading resource files\n";
2306	load_resources;	3470	}
		3471
		3472	sub pidfile() {
		3473	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3474	or die "$PIDFILE: $!";
		3475	flock $fh, &Fcntl::LOCK_EX
		3476	or die "$PIDFILE: flock: $!";
		3477	$fh
		3478	}
		3479
		3480	# make sure only one server instance is running at any one time
		3481	sub atomic {
		3482	my $fh = pidfile;
		3483
		3484	my $pid = <$fh>;
		3485	kill 9, $pid if $pid > 0;
		3486
		3487	seek $fh, 0, 0;
		3488	print $fh $$;
		3489	}
		3490
		3491	sub main_loop {
		3492	warn "EV::loop starting\n";
		3493	if (1) {
		3494	EV::loop;
		3495	}
		3496	warn "EV::loop returned\n";
		3497	goto &main_loop unless $REALLY_UNLOOP;
2307	}	3498	}
2308		3499
2309	sub main {	3500	sub main {
		3501	cf::init_globals; # initialise logging
		3502
		3503	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3504	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3505	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3506	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3507
		3508	cf::init_experience;
		3509	cf::init_anim;
		3510	cf::init_attackmess;
		3511	cf::init_dynamic;
		3512
		3513	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3514
2310	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2312	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3517	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2313	(async {	3518	(async {
2314	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
2315	})->prio (Coro::PRIO_MAX);	3521	})->prio (Coro::PRIO_MAX);
2316	};	3522	};
2317		3523
2318	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
2319	db_load;	3525
		3526	cf::sync_job {
		3527	cf::load_settings;
		3528	cf::load_materials;
		3529
		3530	reload_resources;
		3531	reload_config;
		3532	db_init;
		3533
		3534	cf::init_uuid;
		3535	cf::init_signals;
		3536	cf::init_commands;
		3537	cf::init_skills;
		3538
		3539	cf::init_beforeplay;
		3540
		3541	atomic;
		3542
2320	load_extensions;	3543	load_extensions;
2321		3544
2322	$TICK_WATCHER->start;	3545	utime time, time, $RUNTIMEFILE;
2323	Event::loop;	3546
		3547	# no (long-running) fork's whatsoever before this point(!)
		3548	use POSIX ();
		3549	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3550
		3551	(pop @POST_INIT)->(0) while @POST_INIT;
		3552	};
		3553
		3554	main_loop;
2324	}	3555	}
2325		3556
2326	#############################################################################	3557	#############################################################################
2327	# initialisation and cleanup	3558	# initialisation and cleanup
2328		3559
2329	# install some emergency cleanup handlers	3560	# install some emergency cleanup handlers
2330	BEGIN {	3561	BEGIN {
		3562	our %SIGWATCHER = ();
2331	for my $signal (qw(INT HUP TERM)) {	3563	for my $signal (qw(INT HUP TERM)) {
2332	Event->signal (	3564	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2333	reentrant => 0,
2334	data => WF_AUTOCANCEL,
2335	signal => $signal,
2336	prio => 0,
2337	cb => sub {
2338	cf::cleanup "SIG$signal";	3565	cf::cleanup "SIG$signal";
2339	},
2340	);	3566	};
		3567	}
		3568	}
		3569
		3570	sub write_runtime_sync {
		3571	# first touch the runtime file to show we are still running:
		3572	# the fsync below can take a very very long time.
		3573
		3574	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3575
		3576	my $guard = cf::lock_acquire "write_runtime";
		3577
		3578	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3579	or return;
		3580
		3581	my $value = $cf::RUNTIME + 90 + 10;
		3582	# 10 is the runtime save interval, for a monotonic clock
		3583	# 60 allows for the watchdog to kill the server.
		3584
		3585	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3586	and return;
		3587
		3588	# always fsync - this file is important
		3589	aio_fsync $fh
		3590	and return;
		3591
		3592	# touch it again to show we are up-to-date
		3593	aio_utime $fh, undef, undef;
		3594
		3595	close $fh
		3596	or return;
		3597
		3598	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3599	and return;
		3600
		3601	warn "runtime file written.\n";
		3602
2341	}	3603	1
		3604	}
		3605
		3606	our $uuid_lock;
		3607	our $uuid_skip;
		3608
		3609	sub write_uuid_sync($) {
		3610	$uuid_skip ||= $_[0];
		3611
		3612	return if $uuid_lock;
		3613	local $uuid_lock = 1;
		3614
		3615	my $uuid = "$LOCALDIR/uuid";
		3616
		3617	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3618	or return;
		3619
		3620	my $value = uuid_seq uuid_cur;
		3621
		3622	unless ($value) {
		3623	warn "cowardly refusing to write zero uuid value!\n";
		3624	return;
		3625	}
		3626
		3627	my $value = uuid_str $value + $uuid_skip;
		3628	$uuid_skip = 0;
		3629
		3630	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3631	and return;
		3632
		3633	# always fsync - this file is important
		3634	aio_fsync $fh
		3635	and return;
		3636
		3637	close $fh
		3638	or return;
		3639
		3640	aio_rename "$uuid~", $uuid
		3641	and return;
		3642
		3643	warn "uuid file written ($value).\n";
		3644
		3645	1
		3646
		3647	}
		3648
		3649	sub write_uuid($$) {
		3650	my ($skip, $sync) = @_;
		3651
		3652	$sync ? write_uuid_sync $skip
		3653	: async { write_uuid_sync $skip };
2342	}	3654	}
2343		3655
2344	sub emergency_save() {	3656	sub emergency_save() {
2345	my $freeze_guard = cf::freeze_mainloop;	3657	my $freeze_guard = cf::freeze_mainloop;
2346		3658
2347	warn "enter emergency perl save\n";	3659	warn "emergency_perl_save: enter\n";
2348		3660
2349	cf::sync_job {	3661	cf::sync_job {
		3662	# this is a trade-off: we want to be very quick here, so
		3663	# save all maps without fsync, and later call a global sync
		3664	# (which in turn might be very very slow)
		3665	local $USE_FSYNC = 0;
		3666
2350	# use a peculiar iteration method to avoid tripping on perl	3667	# use a peculiar iteration method to avoid tripping on perl
2351	# refcount bugs in for. also avoids problems with players	3668	# refcount bugs in for. also avoids problems with players
2352	# and maps saved/destroyed asynchronously.	3669	# and maps saved/destroyed asynchronously.
2353	warn "begin emergency player save\n";	3670	warn "emergency_perl_save: begin player save\n";
2354	for my $login (keys %cf::PLAYER) {	3671	for my $login (keys %cf::PLAYER) {
2355	my $pl = $cf::PLAYER{$login} or next;	3672	my $pl = $cf::PLAYER{$login} or next;
2356	$pl->valid or next;	3673	$pl->valid or next;
		3674	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2357	$pl->save;	3675	$pl->save;
2358	}	3676	}
2359	warn "end emergency player save\n";	3677	warn "emergency_perl_save: end player save\n";
2360		3678
2361	warn "begin emergency map save\n";	3679	warn "emergency_perl_save: begin map save\n";
2362	for my $path (keys %cf::MAP) {	3680	for my $path (keys %cf::MAP) {
2363	my $map = $cf::MAP{$path} or next;	3681	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	3682	$map->valid or next;
2365	$map->save;	3683	$map->save;
2366	}	3684	}
2367	warn "end emergency map save\n";	3685	warn "emergency_perl_save: end map save\n";
		3686
		3687	warn "emergency_perl_save: begin database checkpoint\n";
		3688	BDB::db_env_txn_checkpoint $DB_ENV;
		3689	warn "emergency_perl_save: end database checkpoint\n";
		3690
		3691	warn "emergency_perl_save: begin write uuid\n";
		3692	write_uuid_sync 1;
		3693	warn "emergency_perl_save: end write uuid\n";
2368	};	3694	};
2369		3695
		3696	warn "emergency_perl_save: starting sync()\n";
		3697	IO::AIO::aio_sync sub {
		3698	warn "emergency_perl_save: finished sync()\n";
		3699	};
		3700
2370	warn "leave emergency perl save\n";	3701	warn "emergency_perl_save: leave\n";
2371	}	3702	}
2372		3703
		3704	sub post_cleanup {
		3705	my ($make_core) = @_;
		3706
		3707	warn Carp::longmess "post_cleanup backtrace"
		3708	if $make_core;
		3709
		3710	my $fh = pidfile;
		3711	unlink $PIDFILE if <$fh> == $$;
		3712	}
		3713
		3714	# a safer delete_package, copied from Symbol
		3715	sub clear_package($) {
		3716	my $pkg = shift;
		3717
		3718	# expand to full symbol table name if needed
		3719	unless ($pkg =~ /^main::.*::$/) {
		3720	$pkg = "main$pkg" if $pkg =~ /^::/;
		3721	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3722	$pkg .= '::' unless $pkg =~ /::$/;
		3723	}
		3724
		3725	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3726	my $stem_symtab = *{$stem}{HASH};
		3727
		3728	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3729	or return;
		3730
		3731	# clear all symbols
		3732	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3733	for my $name (keys %$leaf_symtab) {
		3734	_gv_clear *{"$pkg$name"};
		3735	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3736	}
		3737	warn "cleared package $pkg\n";#d#
		3738	}
		3739
2373	sub reload() {	3740	sub do_reload_perl() {
2374	# can/must only be called in main	3741	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	3742	if ($Coro::current != $Coro::main) {
2376	warn "can only reload from main coroutine";	3743	warn "can only reload from main coroutine";
2377	return;	3744	return;
2378	}	3745	}
2379		3746
		3747	return if $RELOAD++;
		3748
		3749	my $t1 = EV::time;
		3750
		3751	while ($RELOAD) {
2380	warn "reloading...";	3752	warn "reloading...";
2381		3753
2382	warn "cancelling server ticker";	3754	warn "entering sync_job";
2383	$TICK_WATCHER->cancel;
2384		3755
		3756	cf::sync_job {
		3757	cf::write_runtime_sync; # external watchdog should not bark
2385	cf::emergency_save;	3758	cf::emergency_save;
		3759	cf::write_runtime_sync; # external watchdog should not bark
2386		3760
2387	eval {	3761	warn "syncing database to disk";
		3762	BDB::db_env_txn_checkpoint $DB_ENV;
		3763
2388	# if anything goes wrong in here, we should simply crash as we already saved	3764	# if anything goes wrong in here, we should simply crash as we already saved
2389		3765
2390	warn "syncing database to disk";
2391	cf::db_sync;
2392
2393	warn "cancelling all WF_AUTOCANCEL watchers";
2394	for (Event::all_watchers) {
2395	$_->cancel if $_->data & WF_AUTOCANCEL;
2396	}
2397
2398	warn "flushing outstanding aio requests";	3766	warn "flushing outstanding aio requests";
2399	for (;;) {	3767	while (IO::AIO::nreqs || BDB::nreqs) {
2400	IO::AIO::flush;	3768	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2401	Coro::cede;
2402	last unless IO::AIO::nreqs;
2403	warn "iterate...";
2404	}
2405
2406	warn "cancelling all extension coros";
2407	$_->cancel for values %EXT_CORO;
2408	%EXT_CORO = ();
2409
2410	warn "removing commands";
2411	%COMMAND = ();
2412
2413	warn "removing ext commands";
2414	%EXTCMD = ();
2415
2416	warn "unloading/nuking all extensions";
2417	for my $pkg (@EXTS) {
2418	warn "... unloading $pkg";
2419
2420	if (my $cb = $pkg->can ("unload")) {
2421	eval {
2422	$cb->($pkg);
2423	1
2424	} or warn "$pkg unloaded, but with errors: $@";
2425	}	3769	}
2426		3770
2427	warn "... nuking $pkg";	3771	warn "cancelling all extension coros";
2428	Symbol::delete_package $pkg;	3772	$_->cancel for values %EXT_CORO;
2429	}	3773	%EXT_CORO = ();
2430		3774
2431	warn "unloading all perl modules loaded from $LIBDIR";	3775	warn "removing commands";
2432	while (my ($k, $v) = each %INC) {	3776	%COMMAND = ();
2433	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2434		3777
		3778	warn "removing ext/exti commands";
		3779	%EXTCMD = ();
		3780	%EXTICMD = ();
		3781
		3782	warn "unloading/nuking all extensions";
		3783	for my $pkg (@EXTS) {
2435	warn "... unloading $k";	3784	warn "... unloading $pkg";
2436	delete $INC{$k};
2437		3785
2438	$k =~ s/\.pm$//;
2439	$k =~ s/\//::/g;
2440
2441	if (my $cb = $k->can ("unload_module")) {	3786	if (my $cb = $pkg->can ("unload")) {
		3787	eval {
2442	$cb->();	3788	$cb->($pkg);
		3789	1
		3790	} or warn "$pkg unloaded, but with errors: $@";
		3791	}
		3792
		3793	warn "... clearing $pkg";
		3794	clear_package $pkg;
2443	}	3795	}
2444		3796
2445	Symbol::delete_package $k;	3797	warn "unloading all perl modules loaded from $LIBDIR";
		3798	while (my ($k, $v) = each %INC) {
		3799	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3800
		3801	warn "... unloading $k";
		3802	delete $INC{$k};
		3803
		3804	$k =~ s/\.pm$//;
		3805	$k =~ s/\//::/g;
		3806
		3807	if (my $cb = $k->can ("unload_module")) {
		3808	$cb->();
		3809	}
		3810
		3811	clear_package $k;
2446	}	3812	}
2447		3813
2448	warn "getting rid of safe::, as good as possible";	3814	warn "getting rid of safe::, as good as possible";
2449	Symbol::delete_package "safe::$_"	3815	clear_package "safe::$_"
2450	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3816	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2451		3817
2452	warn "unloading cf.pm \"a bit\"";	3818	warn "unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	3819	delete $INC{"cf.pm"};
		3820	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2454		3821
2455	# don't, removes xs symbols, too,	3822	# don't, removes xs symbols, too,
2456	# and global variables created in xs	3823	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	3824	#clear_package __PACKAGE__;
2458		3825
2459	warn "unload completed, starting to reload now";	3826	warn "unload completed, starting to reload now";
2460		3827
2461	warn "reloading cf.pm";	3828	warn "reloading cf.pm";
2462	require cf;	3829	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3830	cf::_connect_to_perl_1;
2464		3831
2465	warn "loading config and database again";	3832	warn "loading config and database again";
2466	cf::cfg_load;	3833	cf::reload_config;
2467	cf::db_load;
2468		3834
2469	warn "loading extensions";	3835	warn "loading extensions";
2470	cf::load_extensions;	3836	cf::load_extensions;
2471		3837
		3838	if ($REATTACH_ON_RELOAD) {
2472	warn "reattaching attachments to objects/players";	3839	warn "reattaching attachments to objects/players";
2473	_global_reattach;	3840	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	3841	warn "reattaching attachments to maps";
2475	reattach $_ for values %MAP;	3842	reattach $_ for values %MAP;
		3843	warn "reattaching attachments to players";
		3844	reattach $_ for values %PLAYER;
		3845	}
2476		3846
2477	warn "loading reloadable resources";	3847	warn "running post_init jobs";
2478	load_resources;	3848	(pop @POST_INIT)->(1) while @POST_INIT;
2479		3849
2480	warn "restarting server ticker";	3850	warn "leaving sync_job";
2481		3851
2482	$TICK_WATCHER->start;	3852	1
		3853	} or do {
		3854	warn $@;
		3855	cf::cleanup "error while reloading, exiting.";
		3856	};
		3857
		3858	warn "reloaded";
		3859	--$RELOAD;
		3860	}
		3861
		3862	$t1 = EV::time - $t1;
		3863	warn "reload completed in ${t1}s\n";
		3864	};
		3865
		3866	our $RELOAD_WATCHER; # used only during reload
		3867
		3868	sub reload_perl() {
		3869	# doing reload synchronously and two reloads happen back-to-back,
		3870	# coro crashes during coro_state_free->destroy here.
		3871
		3872	$RELOAD_WATCHER ||= cf::async {
		3873	Coro::AIO::aio_wait cache_extensions;
		3874
		3875	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3876	do_reload_perl;
		3877	undef $RELOAD_WATCHER;
		3878	};
2483	};	3879	};
2484		3880	}
2485	if ($@) {
2486	warn $@;
2487	warn "error while reloading, exiting.";
2488	exit 1;
2489	}
2490
2491	warn "reloaded";
2492	};
2493
2494	our $RELOAD_WATCHER; # used only during reload
2495		3881
2496	register_command "reload" => sub {	3882	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	3883	my ($who, $arg) = @_;
2498		3884
2499	if ($who->flag (FLAG_WIZ)) {	3885	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	3886	$who->message ("reloading server.");
2501		3887	async {
2502	# doing reload synchronously and two reloads happen back-to-back,	3888	$Coro::current->{desc} = "perl_reload";
2503	# coro crashes during coro_state_free->destroy here.
2504
2505	$RELOAD_WATCHER ||= Event->timer (
2506	reentrant => 0,
2507	after => 0,
2508	data => WF_AUTOCANCEL,
2509	cb => sub {
2510	reload;	3889	reload_perl;
2511	undef $RELOAD_WATCHER;
2512	},
2513	);	3890	};
2514	}	3891	}
2515	};	3892	};
2516		3893
2517	unshift @INC, $LIBDIR;	3894	unshift @INC, $LIBDIR;
2518		3895
2519	my $bug_warning = 0;	3896	my $bug_warning = 0;
2520		3897
2521	$TICK_WATCHER = Event->timer (	3898	our @WAIT_FOR_TICK;
2522	reentrant => 0,	3899	our @WAIT_FOR_TICK_BEGIN;
2523	parked => 1,	3900
2524	prio => 0,	3901	sub wait_for_tick {
2525	at => $NEXT_TICK || $TICK,	3902	return if tick_inhibit || $Coro::current == $Coro::main;
2526	data => WF_AUTOCANCEL,	3903
2527	cb => sub {	3904	my $signal = new Coro::Signal;
		3905	push @WAIT_FOR_TICK, $signal;
		3906	$signal->wait;
		3907	}
		3908
		3909	sub wait_for_tick_begin {
		3910	return if tick_inhibit || $Coro::current == $Coro::main;
		3911
		3912	my $signal = new Coro::Signal;
		3913	push @WAIT_FOR_TICK_BEGIN, $signal;
		3914	$signal->wait;
		3915	}
		3916
		3917	sub tick {
2528	if ($Coro::current != $Coro::main) {	3918	if ($Coro::current != $Coro::main) {
2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3919	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2530	unless ++$bug_warning > 10;	3920	unless ++$bug_warning > 10;
2531	return;	3921	return;
2532	}	3922	}
2533		3923
2534	$NOW = Event::time;
2535
2536	cf::server_tick; # one server iteration	3924	cf::server_tick; # one server iteration
2537	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;
2539		3925
2540	$WAIT_FOR_TICK->broadcast;	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2542		3928	Coro::async_pool {
2543	Event::sweep;	3929	$Coro::current->{desc} = "runtime saver";
2544	Coro::cede_notself;
2545
2546	# my $AFTER = Event::time;
2547	# warn $AFTER - $NOW;#d#
2548
2549	# if we are delayed by four ticks or more, skip them all
2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2551
2552	$TICK_WATCHER->at ($NEXT_TICK);
2553	$TICK_WATCHER->start;
2554	},
2555	);
2556
2557	IO::AIO::max_poll_time $TICK * 0.1;
2558
2559	undef $Coro::AIO::WATCHER;
2560	$AIO_POLL_WATCHER = Event->io (
2561	reentrant => 0,
2562	fd => IO::AIO::poll_fileno,
2563	poll => 'r',
2564	prio => 6,
2565	data => WF_AUTOCANCEL,
2566	cb => \&IO::AIO::poll_cb,
2567	);
2568
2569	$WRITE_RUNTIME_WATCHER = Event->timer (
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	after => 1,
2573	interval => 10,
2574	prio => 6, # keep it lowest so it acts like a watchdog
2575	cb => Coro::unblock_sub {
2576	write_runtime	3930	write_runtime_sync
2577	or warn "ERROR: unable to write runtime file: $!";	3931	or warn "ERROR: unable to write runtime file: $!";
		3932	};
2578	},	3933	}
2579	);	3934
		3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3936	$sig->send;
		3937	}
		3938	while (my $sig = shift @WAIT_FOR_TICK) {
		3939	$sig->send;
		3940	}
		3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
		3953
		3954	{
		3955	# configure BDB
		3956
		3957	BDB::min_parallel 8;
		3958	BDB::max_poll_reqs $TICK * 0.1;
		3959	$AnyEvent::BDB::WATCHER->priority (1);
		3960
		3961	unless ($DB_ENV) {
		3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3968
		3969	cf::sync_job {
		3970	eval {
		3971	BDB::db_env_open
		3972	$DB_ENV,
		3973	$BDBDIR,
		3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3976	0666;
		3977
		3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3979	};
		3980
		3981	cf::cleanup "db_env_open(db): $@" if $@;
		3982	};
		3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
		3994	}
		3995
		3996	{
		3997	# configure IO::AIO
		3998
		3999	IO::AIO::min_parallel 8;
		4000	IO::AIO::max_poll_time $TICK * 0.1;
		4001	undef $AnyEvent::AIO::WATCHER;
		4002	}
		4003
		4004	my $_log_backtrace;
		4005
		4006	sub _log_backtrace {
		4007	my ($msg, @addr) = @_;
		4008
		4009	$msg =~ s/\n//;
		4010
		4011	# limit the # of concurrent backtraces
		4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
		4039	};
		4040	} else {
		4041	LOG llevInfo, "[ABT] $msg\n";
		4042	LOG llevInfo, "[ABT] [suppressed]\n";
		4043	}
		4044	}
		4045
		4046	# load additional modules
		4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
2580		4049
2581	END { cf::emergency_save }	4050	END { cf::emergency_save }
2582		4051
2583	1	4052	1
2584		4053

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