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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.236 by root, Thu Apr 12 14:18:05 2007 UTC vs.
Revision 1.494 by root, Mon Oct 26 05:18:00 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;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
13		38
		39	use Guard ();
14	use Coro 3.52 ();	40	use Coro ();
15	use Coro::State;	41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
16	use Coro::Event;	44	use Coro::AnyEvent;
17	use Coro::Timer;	45	use Coro::Timer;
18	use Coro::Signal;	46	use Coro::Signal;
19	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
20	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
21		54
		55	use JSON::XS 2.01 ();
22	use BDB ();	56	use BDB ();
23	use Data::Dumper;	57	use Data::Dumper;
24	use Digest::MD5;	58	use Digest::MD5;
25	use Fcntl;	59	use Fcntl;
26	use YAML::Syck ();	60	use YAML::XS ();
27	use IO::AIO 2.32 ();	61	use IO::AIO ();
28	use Time::HiRes;	62	use Time::HiRes;
29	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
30		67
31	# configure various modules to our taste	68	# configure various modules to our taste
32	#	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		78
36	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
37		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
39	$YAML::Syck::ImplicitUnicode = 1;
40
41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42		81
43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
44		83
45	our %COMMAND = ();	84	our %COMMAND = ();
46	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
47		86
48	our @EXTS = (); # list of extension package names	87	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	90	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	91	our %EXT_MAP = (); # pluggable maps
52		92
53	our $RELOAD; # number of reloads so far	93	our $RELOAD; # number of reloads so far, non-zero while in reload
54	our @EVENT;	94	our @EVENT;
55	our $LIBDIR = datadir . "/ext";	95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
56		97
57	our $TICK = MAX_TIME * 1e-6;	98	our $CONFDIR = confdir;
58	our $TICK_WATCHER;	99	our $DATADIR = datadir;
59	our $AIO_POLL_WATCHER;	100	our $LIBDIR = "$DATADIR/ext";
		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(!)
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	116	our $NEXT_TICK;
62	our $NOW;
63	our $USE_FSYNC = 1; # use fsync to write maps - default off	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
64		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
65	our $BDB_POLL_WATCHER;	121	our $BDB_TRICKLE_WATCHER;
66	our $DB_ENV;	122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
67		125
68	our %CFG;	126	our %CFG;
69		127
70	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
71	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
72		131
73	our %PLAYER; # all users	132	our (%PLAYER, %PLAYER_LOADING); # all users
74	our %MAP; # all maps	133	our (%MAP, %MAP_LOADING ); # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	134	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		135
82	# 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 ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		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 $REALLY_UNLOOP; # never set to true, please :)
		148
85	binmode STDOUT;	149	binmode STDOUT;
86	binmode STDERR;	150	binmode STDERR;
87		151
88	# read virtual server time, if available	152	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
90	open my $fh, "<", cf::localdir . "/runtime"	154	open my $fh, "<", $RUNTIMEFILE
91	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
92	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
93	}	157	}
94		158
95	mkdir cf::localdir;	159	eval "sub TICK() { $TICK } 1" or die;
96	mkdir cf::localdir . "/" . cf::playerdir;	160
97	mkdir cf::localdir . "/" . cf::tmpdir;	161	mkdir $_
98	mkdir cf::localdir . "/" . cf::uniquedir;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		163
102	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
103		165
104	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::"} };
105		178
106	#############################################################################	179	#############################################################################
107		180
108	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
109		182
…		…
116	=item $cf::RUNTIME	189	=item $cf::RUNTIME
117		190
118	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
119	every server tick.	192	every server tick.
120		193
121	=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
122		197
123	The perl library directory, where extensions and cf-specific modules can	198	Various directories - "/etc", read-only install directory, perl-library
124	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.
125		202
126	=item $cf::NOW	203	=item $cf::NOW
127		204
128	The time of the last (current) server tick.	205	The time of the last (current) server tick.
129		206
130	=item $cf::TICK	207	=item $cf::TICK
131		208
132	The interval between server ticks, in seconds.	209	The interval between server ticks, in seconds.
133		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
134	=item %cf::CFG	221	=item %cf::CFG
135		222
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
137	from wherever your confdir points to.	224	from wherever your confdir points to.
138		225
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	226	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		227
141	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
142	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
143	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.
144	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.
145		243
146	=back	244	=back
147		245
148	=cut	246	=cut
149		247
150	BEGIN {	248	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	249	my $msg = join "", @_;
153	utf8::encode $msg;
154		250
155	$msg .= "\n"	251	$msg .= "\n"
156	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
157		253
		254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		255
158	LOG llevError, $msg;	256	LOG llevError, $msg;
159	};	257	};
160	}	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	};
161		272
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@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';
167	@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)
168		280
169	# 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
170	# within the Safe compartment.	282	# within the Safe compartment.
171	for my $pkg (qw(	283	for my $pkg (qw(
172	cf::global cf::attachable	284	cf::global cf::attachable
173	cf::object cf::object::player	285	cf::object cf::object::player
174	cf::client cf::player	286	cf::client cf::player
175	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
176	cf::map cf::party cf::region	289	cf::party cf::region
177	)) {	290	)) {
178	no strict 'refs';
179	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
180	}	292	}
181		293
182	$Event::DIED = sub {	294	$EV::DIED = sub {
183	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
184	};	296	};
		297
		298	#############################################################################
185		299
186	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
187		301
188	=over 4	302	=over 4
189		303
…		…
208	$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;
209	$d	323	$d
210	} || "[unable to dump $_[0]: '$@']";	324	} || "[unable to dump $_[0]: '$@']";
211	}	325	}
212		326
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
214
215	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
216		328
217	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
218		330
219	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
220		332
221	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
222		334
		335	=cut
		336
		337	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		338
		339	sub encode_json($) { $json_coder->encode ($_[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;
		354	}
		355
223	=item cf::lock_wait $string	356	=item cf::lock_wait $string
224		357
225	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
226		359
227	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
228		361
229	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
230	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,
231	for example when the coroutine gets canceled), the lock is automatically	364	for example when the coroutine gets canceled), the lock is automatically
232	returned.	365	returned.
233		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
234	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
235	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
236		372
237	=cut	373	=item $locked = cf::lock_active $string
238		374
239	our %LOCK;	375	Return true if the lock is currently active, i.e. somebody has locked it.
		376
		377	=cut
		378
		379	our $LOCKS = new Coro::SemaphoreSet;
240		380
241	sub lock_wait($) {	381	sub lock_wait($) {
242	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
243
244	# wait for lock, if any
245	while ($LOCK{$key}) {
246	push @{ $LOCK{$key} }, $Coro::current;
247	Coro::schedule;
248	}
249	}	383	}
250		384
251	sub lock_acquire($) {	385	sub lock_acquire($) {
252	my ($key) = @_;	386	$LOCKS->guard ($_[0])
		387	}
253		388
254	# wait, to be sure we are not locked	389	sub lock_active($) {
255	lock_wait $key;	390	$LOCKS->count ($_[0]) < 1
256
257	$LOCK{$key} = [];
258
259	Coro::guard {
260	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };
262	}
263	}	391	}
264		392
265	sub freeze_mainloop {	393	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
267		395
268	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
269	$TICK_WATCHER->start;	397	}
		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($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
270	};	457	}
271	$TICK_WATCHER->stop;	458	};
272	$guard	459
		460	sub get_slot($;$$) {
		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	$sig->wait;
273	}	472	}
274		473
275	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
276		475
277	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		481
283	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
284		483
285	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
286		485
287	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
290		490
291	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
294	fast or be very important.	494	fast or be very important.
…		…
297		497
298	sub sync_job(&) {	498	sub sync_job(&) {
299	my ($job) = @_;	499	my ($job) = @_;
300		500
301	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
302	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
304		506
305	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	508
307	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
308		510
309	my $busy = 1;	511	my $busy = 1;
310	my @res;	512	my @res;
311		513
312	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	516	@res = eval { $job->() };
314	warn $@ if $@;	517	warn $@ if $@;
315	undef $busy;	518	undef $busy;
316	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
317		520
318	while ($busy) {	521	while ($busy) {
319	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
320	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
321		532
322	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
323	} else {	534	} else {
324	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
325		536
…		…
345	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
346		557
347	$coro	558	$coro
348	}	559	}
349		560
350	sub write_runtime {	561	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		562
353	my $runtime = cf::localdir . "/runtime";	563	Executes the given code block with the given arguments in a seperate
		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.
354		567
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	568	=cut
356	or return;
357		569
358	my $value = $cf::RUNTIME + 90 + 10;	570	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	571	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		572
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	573	# we seemingly have to make a local copy of the whole thing,
363	and return;	574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
364		576
365	# always fsync - this file is important	577	my @res = Coro::Util::fork_eval {
366	aio_fsync $fh	578	reset_signals;
367	and return;	579	&$cb
		580	}, @args;
368		581
369	close $fh	582	wantarray ? @res : $res[-1]
370	or return;	583	}
371		584
372	aio_rename "$runtime~", $runtime	585	=item $coin = coin_from_name $name
373	and return;
374		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		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($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
375	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		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"
376	}	737	}
377		738
378	=item cf::datalog type => key => value, ...	739	=item cf::datalog type => key => value, ...
379		740
380	Log a datalog packet of the given type with the given key-value pairs.	741	Log a datalog packet of the given type with the given key-value pairs.
…		…
392		753
393	#############################################################################	754	#############################################################################
394		755
395	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
396		757
397	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
398	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")
399	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
400		761
401	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>
402	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
403	crossfire+).	764	Deliantra).
404		765
405	=over 4	766	=over 4
406		767
407	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
408		769
…		…
452	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
453		814
454	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
456		817
457	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	819	that are attached at load/instantiate time, thus the need for a name.
459		820
460	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
461		822
462	=over 4	823	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
572		933
573	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		938
578	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	940	my $pkg = shift @arg;
580		941
581	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
611	}	972	}
612		973
613	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
614	} else {	975	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	977	}
617		978
618	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
619	}	980	}
620		981
…		…
622	if (ref $_[0]) {	983	if (ref $_[0]) {
623	_object_attach @_;	984	_object_attach @_;
624	} else {	985	} else {
625	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
626	}	987	}
		988	_recalc_want;
627	};	989	};
628		990
629	# all those should be optimised	991	# all those should be optimised
630	sub cf::attachable::detach {	992	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
635	reattach ($obj);	997	reattach ($obj);
636	} else {	998	} else {
637	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
638	}	1000	}
		1001	_recalc_want;
639	};	1002	};
640		1003
641	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
643		1006
…		…
658	";	1021	";
659	die if $@;	1022	die if $@;
660	}	1023	}
661		1024
662	our $override;	1025	our $override;
663	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?
664		1027
665	sub override {	1028	sub override {
666	$override = 1;	1029	$override = 1;
667	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
668	}	1031	}
669		1032
670	sub do_invoke {	1033	sub do_invoke {
671	my $event = shift;	1034	my $event = shift;
672	my $callbacks = shift;	1035	my $callbacks = shift;
673		1036
674	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
675		1038
676	local $override;	1039	local $override;
677		1040
678	for (@$callbacks) {	1041	for (@$callbacks) {
679	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
688	}	1051	}
689		1052
690	0	1053	0
691	}	1054	}
692		1055
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1057
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1059
697	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
698		1061
699	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
700	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
701	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1065
703	=back	1066	=back
704		1067
705	=cut	1068	=cut
706		1069
707	#############################################################################	1070	#############################################################################
708	# 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, $ob2
		1113	}
709		1114
710	sub reattach {	1115	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1117	my ($obj) = @_;
713		1118
		1119	# no longer needed after getting rid of delete_package?
714	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
715		1121
716	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
717		1123
718	@$registry = ();	1124	@$registry = ();
719		1125
…		…
734	cf::attachable->attach (	1140	cf::attachable->attach (
735	prio => -1000000,	1141	prio => -1000000,
736	on_instantiate => sub {	1142	on_instantiate => sub {
737	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
738		1144
739	$data = from_json $data;	1145	$data = decode_json $data;
740		1146
741	for (@$data) {	1147	for (@$data) {
742	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
743		1149
744	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1166	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
762		1168
763	sync_job {	1169	sync_job {
764	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
767		1174
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	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	}
772	close $fh;	1182	aio_close $fh;
773		1183
774	if (@$objs) {	1184	if (@$objs) {
775	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) {
776	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
779	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	}
780	close $fh;	1193	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
782	}	1195	}
783	} else {	1196	} else {
784	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
785	}	1198	}
786		1199
787	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1204	} else {
789	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
790	}	1206	}
791	} else {	1207	} else {
792	aio_unlink $filename;	1208	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
794	}	1210	}
795	}	1211	};
796	}	1212	}
797		1213
798	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
800		1216
…		…
812	or return;	1228	or return;
813		1229
814	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
816	or return;	1232	or return;
		1233
817	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
818	}	1236	}
819		1237
		1238	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
822	return ($data, $av);	1242	($data, $av)
823	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
824		1250
825	#############################################################################	1251	#############################################################################
826	# command handling &c	1252	# command handling &c
827		1253
828	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1268	}
843		1269
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1271
846	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.
847		1277
848	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
849	called.	1279	called.
850		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
851	=cut	1292	=cut
852		1293
853	sub register_extcmd {	1294	sub register_extcmd {
854	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
855		1296
856	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
857	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
858		1307
859	cf::player->attach (	1308	cf::player->attach (
860	on_command => sub {	1309	on_command => sub {
861	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
862		1311
…		…
870	cf::override;	1319	cf::override;
871	},	1320	},
872	on_extcmd => sub {	1321	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
874		1323
875	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1325
877	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
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
883	} else {	1341	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1343	}
886		1344
887	cf::override;	1345	cf::override;
888	},	1346	},
889	);	1347	);
890		1348
		1349	# "readahead" all extensions
891	sub load_extension {	1350	sub cache_extensions {
892	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
893		1352
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1356	}
919	die $@;
920	}	1357	};
921		1358
922	push @EXTS, $pkg;	1359	$grp
923	}	1360	}
924		1361
925	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
926	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1367	next unless -r $path;
928	eval {	1368
929	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	$progress = 1;
930	1	1425	}
931	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
932	}	1431	};
933	}	1432	}
934		1433
935	#############################################################################	1434	#############################################################################
936		1435
		1436	=back
		1437
937	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
938		1439
939	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
940		1441
941	=cut	1442	=cut
942		1443
943	package cf::player;	1444	package cf::player;
944		1445
…		…
946		1447
947	=head3 cf::player	1448	=head3 cf::player
948		1449
949	=over 4	1450	=over 4
950		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
951	=item cf::player::find $login	1466	=item cf::player::find $login
952		1467
953	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
954		1469
955	=cut	1470	=cut
956		1471
957	sub playerdir($) {	1472	sub playerdir($) {
958	cf::localdir	1473	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1474	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1475	}
964		1476
965	sub path($) {	1477	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1478	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
976		1488
977	sub exists($) {	1489	sub exists($) {
978	my ($login) = @_;	1490	my ($login) = @_;
979		1491
980	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1493	or !aio_stat path $login
982	}	1494	}
983		1495
984	sub find($) {	1496	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1498	my $login = $_[0];
…		…
993	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
994	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
995	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
996	aio_unlink +(playerdir $login) . "/$login.pl";	1508	aio_unlink +(playerdir $login) . "/$login.pl";
997		1509
998	my $pl = load_pl path $login	1510	my $f = new_from_file cf::object::thawer path $login
999	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;
1000	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
1001	}	1519	}
1002	}	1520	}
1003	}	1521	}
1004		1522
…		…
1013	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
1014		1532
1015	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
1016	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
1017		1535
		1536	cf::get_slot 0.01;
		1537
1018	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
1019	Coro::cede;	1539	cf::cede_to_tick;
1020	}	1540	}
1021		1541
1022	sub new($) {	1542	sub new($) {
1023	my ($login) = @_;	1543	my ($login) = @_;
1024		1544
…		…
1030	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
1031		1551
1032	$self	1552	$self
1033	}	1553	}
1034		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
1035	=item $pl->quit_character	1565	=item $pl->quit_character
1036		1566
1037	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1038	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1039		1569
…		…
1043	my ($pl) = @_;	1573	my ($pl) = @_;
1044		1574
1045	my $name = $pl->ob->name;	1575	my $name = $pl->ob->name;
1046		1576
1047	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1048	$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
1049		1579
1050	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1051	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1052	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1053	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1054		1586
1055	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1056	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1086	while and may block, so not sync_job-capable, ever.	1618	while and may block, so not sync_job-capable, ever.
1087		1619
1088	=cut	1620	=cut
1089		1621
1090	sub list_logins {	1622	sub list_logins {
1091	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1623	my $dirs = aio_readdir $PLAYERDIR
1092	or return [];	1624	or return [];
1093		1625
1094	my @logins;	1626	my @logins;
1095		1627
1096	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") {
1097	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1098	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1099	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1100		1638
1101	utf8::decode $login;	1639	utf8::decode $login;
1102	push @logins, $login;	1640	push @logins, $login;
1103	}	1641	}
1104		1642
…		…
1131	}	1669	}
1132		1670
1133	\@paths	1671	\@paths
1134	}	1672	}
1135		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1136	=item $player->ext_reply ($msgid, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1137		1679
1138	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1139		1681
1140	=cut	1682	=cut
1141		1683
1142	sub ext_reply($$%) {	1684	sub ext_reply($$@) {
1143	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1144		1686
1145	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1146
1147	$self->send ("ext " . cf::to_json \%msg);
1148	}	1688	}
1149		1689
1150	=item $player->ext_event ($type, %msg)	1690	=item $player->ext_msg ($type, @msg)
1151		1691
1152	Sends an ext event to the client.	1692	Sends an ext event to the client.
1153		1693
1154	=cut	1694	=cut
1155		1695
1156	sub ext_event($$%) {	1696	sub ext_msg($$@) {
1157	my ($self, $type, %msg) = @_;	1697	my ($self, $type, @msg) = @_;
1158		1698
1159	$self->ns->ext_event ($type, %msg);	1699	$self->ns->ext_msg ($type, @msg);
1160	}	1700	}
1161		1701
1162	package cf;	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	}
1163		1730
1164	=back	1731	=back
1165
1166		1732
1167	=head3 cf::map	1733	=head3 cf::map
1168		1734
1169	=over 4	1735	=over 4
1170		1736
…		…
1182	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1183	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1184		1750
1185	sub generate_random_map {	1751	sub generate_random_map {
1186	my ($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
1187	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1188	$self->_create_random_map (	1757	$self->_create_random_map (
1189	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1190	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1191	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1225	my ($self, $merge) = @_;	1794	my ($self, $merge) = @_;
1226		1795
1227	# we have to keep some variables in memory intact	1796	# we have to keep some variables in memory intact
1228	local $self->{path};	1797	local $self->{path};
1229	local $self->{load_path};	1798	local $self->{load_path};
1230	local $self->{deny_save};
1231	local $self->{deny_reset};
1232		1799
1233	$self->SUPER::thawer_merge ($merge);	1800	$self->SUPER::thawer_merge ($merge);
1234	}	1801	}
1235		1802
1236	sub normalise {	1803	sub normalise {
…		…
1283	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1284	return $self;	1851	return $self;
1285	}	1852	}
1286	}	1853	}
1287		1854
1288	Carp::carp "unable to resolve path '$path' (base '$base').";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1289	()	1856	()
1290	}	1857	}
1291		1858
1292	sub init {	1859	sub init {
1293	my ($self) = @_;	1860	my ($self) = @_;
…		…
1308		1875
1309	# the original (read-only) location	1876	# the original (read-only) location
1310	sub load_path {	1877	sub load_path {
1311	my ($self) = @_;	1878	my ($self) = @_;
1312		1879
1313	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1880	"$MAPDIR/$self->{path}.map"
1314	}	1881	}
1315		1882
1316	# the temporary/swap location	1883	# the temporary/swap location
1317	sub save_path {	1884	sub save_path {
1318	my ($self) = @_;	1885	my ($self) = @_;
1319		1886
1320	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1321	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1888	"$TMPDIR/$path.map"
1322	}	1889	}
1323		1890
1324	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1325	sub uniq_path {	1892	sub uniq_path {
1326	my ($self) = @_;	1893	my ($self) = @_;
1327		1894
1328	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1329	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1896	"$UNIQUEDIR/$path"
1330	}	1897	}
1331		1898
1332	# and all this just because we cannot iterate over	1899	sub decay_objects {
1333	# all maps in C++...
1334	sub change_all_map_light {
1335	my ($change) = @_;	1900	my ($self) = @_;
1336		1901
1337	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1338	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1339	}	1905	}
1340		1906
1341	sub unlink_save {	1907	sub unlink_save {
1342	my ($self) = @_;	1908	my ($self) = @_;
1343		1909
…		…
1348		1914
1349	sub load_header_from($) {	1915	sub load_header_from($) {
1350	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1351		1917
1352	utf8::encode $path;	1918	utf8::encode $path;
1353	#aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1354	# or return;
1355
1356	$self->_load_header ($path)
1357	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;
1358		1927
1359	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1360		1929
1361	1	1930	1
1362	}	1931	}
…		…
1401	$self->load_header_orig	1970	$self->load_header_orig
1402	or return;	1971	or return;
1403	$self->prepare_orig;	1972	$self->prepare_orig;
1404	}	1973	}
1405		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 $self->default_region;
		1980
1406	1	1981	1
1407	}	1982	}
1408		1983
1409	sub find;	1984	sub find;
1410	sub find {	1985	sub find {
1411	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1412		1987
1413	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1414		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1415	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1416		1992
1417	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1418	my $guard = cf::lock_acquire "map_find:$path";
1419	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1420	or return;	1995	or return;
1421		1996
1422	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1423		1998
1424	$map->load_header	1999	$map->load_header
1425	or return;	2000	or return;
1426		2001
1427	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1428	# doing this can freeze the server in a sync job, obviously	2003	# doing this can freeze the server in a sync job, obviously
1429	#$cf::WAIT_FOR_TICK->wait;	2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1430	$map->reset;	2007	$map->reset;
1431	undef $guard;
1432	return find $path;	2008	return find $path;
1433	}	2009	}
1434		2010
1435	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1436	}	2012	}
…		…
1443	my ($self) = @_;	2019	my ($self) = @_;
1444		2020
1445	local $self->{deny_reset} = 1; # loading can take a long time	2021	local $self->{deny_reset} = 1; # loading can take a long time
1446		2022
1447	my $path = $self->{path};	2023	my $path = $self->{path};
		2024
		2025	{
1448	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1449		2027
		2028	return unless $self->valid;
1450	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1451		2030
1452	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1453		2032
1454	$self->alloc;	2033	$self->alloc;
1455		2034
1456	$self->pre_load;	2035	$self->pre_load;
		2036	cf::cede_to_tick;
1457		2037
1458	$self->_load_objects ($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)
1459	or return;	2041	or return;
1460		2042
1461	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1462	if delete $self->{load_original};	2044	if delete $self->{load_original};
1463		2045
1464	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1465	utf8::encode $uniq;	2047	utf8::encode $uniq;
1466	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1467	$self->clear_unique_items;	2050	$self->clear_unique_items;
1468	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1469	}	2054	}
1470	}	2055	}
1471		2056
1472	Coro::cede;	2057	$f->resolve_delayed_derefs;
1473		2058
		2059	cf::cede_to_tick;
1474	# now do the right thing for maps	2060	# now do the right thing for maps
1475	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1476
1477	unless ($self->{deny_activate}) {
1478	$self->decay_objects;
1479	$self->fix_auto_apply;
1480	$self->update_buttons;
1481	Coro::cede;
1482	$self->set_darkness_map;
1483	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1484	unless $self->difficulty;	2063	unless $self->difficulty;
1485	Coro::cede;	2064	cf::cede_to_tick;
		2065
		2066	unless ($self->{deny_activate}) {
		2067	$self->decay_objects;
		2068	$self->fix_auto_apply;
		2069	$self->update_buttons;
		2070	cf::cede_to_tick;
1486	$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);
1487	}	2078	}
1488		2079
1489	$self->post_load;	2080	$self->post_load;
1490
1491	$self->in_memory (cf::MAP_IN_MEMORY);
1492	}	2081	}
1493		2082
1494	sub customise_for {	2083	sub customise_for {
1495	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1496		2085
1497	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1498	if $self->per_player;	2087	if $self->per_player;
1499		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1500	$self	2092	$self
1501	}	2093	}
1502		2094
1503	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1504	sub load_diag {	2096	sub load_neighbours {
1505	my ($map) = @_;	2097	my ($map) = @_;
1506		2098
1507	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1508		2100
1509	for (0 .. 3) {	2101	for (0 .. 3) {
1510	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1511	or next;	2103	or next;
1512	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1513	or next;	2105	or next;
1514	$neigh->load;	2106	$neigh->load;
1515		2107
		2108	push @neigh,
1516	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1517	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1518	}	2111	}
1519		2112
1520	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1521	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1522	or next;	2116	or next;
1523	$neigh->load;	2117	$neigh->load;
1524	}	2118	}
1525	}	2119	}
1526		2120
…		…
1531	}	2125	}
1532		2126
1533	sub do_load_sync {	2127	sub do_load_sync {
1534	my ($map) = @_;	2128	my ($map) = @_;
1535		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1536	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1537	}	2134	}
1538		2135
1539	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1540	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1541		2138
1542	sub find_async {	2139	sub find_async {
1543	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1544		2141
1545	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1546		2143
1547	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1548	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1549	}	2146	}
1550		2147
1551	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1552	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1553	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1554	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1555	my $map = find $path	2155	if (my $map = find $k) {
1556	or next;
1557	$map->load;	2156	$map->load if $v;
		2157	}
1558		2158
1559	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1560	}	2160	}
1561	}	2161	}
1562	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1563	};	2163	};
1564	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1567	}	2167	}
1568		2168
1569	sub save {	2169	sub save {
1570	my ($self) = @_;	2170	my ($self) = @_;
1571		2171
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2173
1574	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1575		2175
1576	return unless $self->dirty;	2176	return unless $self->dirty;
1577		2177
…		…
1583	return if $self->{deny_save};	2183	return if $self->{deny_save};
1584		2184
1585	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1586		2186
1587	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1588	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1589	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1590		2193
1591	if ($uniq) {	2194	if ($uniq) {
1592	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1593	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1594	} else {	2197	} else {
…		…
1600	my ($self) = @_;	2203	my ($self) = @_;
1601		2204
1602	# save first because save cedes	2205	# save first because save cedes
1603	$self->save;	2206	$self->save;
1604		2207
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2209
1607	return if $self->players;	2210	return if $self->players;
1608	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1609	return if $self->{deny_save};	2212	return if $self->{deny_save};
1610		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1611	$self->clear;	2218	$self->clear;
1612	$self->in_memory (cf::MAP_SWAPPED);
1613	}	2219	}
1614		2220
1615	sub reset_at {	2221	sub reset_at {
1616	my ($self) = @_;	2222	my ($self) = @_;
1617		2223
1618	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1619	return 1e99 if $self->isa ("ext::map_per_player");#d#
1620	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1621		2226
1622	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1623	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1624		2229
…		…
1635	my ($self) = @_;	2240	my ($self) = @_;
1636		2241
1637	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2243
1639	return if $self->players;	2244	return if $self->players;
1640	return if $self->isa ("ext::map_per_player");#d#
1641		2245
1642	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
1643		2247
1644	$self->in_memory (cf::MAP_SWAPPED);	2248	$self->in_memory (cf::MAP_SWAPPED);
1645		2249
1646	# need to save uniques path	2250	# need to save uniques path
1647	unless ($self->{deny_save}) {	2251	unless ($self->{deny_save}) {
…		…
1651	if $uniq;	2255	if $uniq;
1652	}	2256	}
1653		2257
1654	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1655		2259
		2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1656	$self->clear;	2262	$self->clear;
1657
1658	$_->clear_links_to ($self) for values %cf::MAP;
1659		2263
1660	$self->unlink_save;	2264	$self->unlink_save;
1661	$self->destroy;	2265	$self->destroy;
1662	}	2266	}
1663		2267
1664	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1665		2269
1666	sub nuke {	2270	sub nuke {
1667	my ($self) = @_;	2271	my ($self) = @_;
1668		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
1669	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1670		2277
1671	$self->unlink_save;	2278	$self->unlink_save;
1672		2279
1673	bless $self, "cf::map";	2280	bless $self, "cf::map";
1674	delete $self->{deny_reset};	2281	delete $self->{deny_reset};
1675	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1676	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1677	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1678		2285
1679	$cf::MAP{$self->path} = $self;	2286	$cf::MAP{$self->path} = $self;
		2287	}
1680		2288
1681	$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	]
1682	}	2326	}
1683		2327
1684	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1685		2329
1686	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1687	instantiated unique items. May block.	2331	instantiated unique items. May block.
1688		2332
1689	=cut	2333	=cut
1690		2334
1691	sub unique_maps() {	2335	sub unique_maps() {
1692	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2336	[
1693	or return;	2337	map {
1694
1695	my @paths;
1696
1697	for (@$files) {
1698	utf8::decode $_;	2338	utf8::decode $_;
1699	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1700	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1701		2341	? ()
1702	push @paths, cf::map::normalise $_;	2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
1703	}	2344	]
1704
1705	\@paths
1706	}	2345	}
1707		2346
1708	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	}
1709		2378
1710	=back	2379	=back
1711		2380
1712	=head3 cf::object	2381	=head3 cf::object
1713		2382
…		…
1717		2386
1718	=over 4	2387	=over 4
1719		2388
1720	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1721		2390
1722	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.
1723		2393
1724	=cut	2394	=cut
1725		2395
1726	sub inv_recursive_;	2396	sub inv_recursive_;
1727	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1730		2400
1731	sub inv_recursive {	2401	sub inv_recursive {
1732	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1733	}	2403	}
1734		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
1735	package cf;	2433	package cf;
1736		2434
1737	=back	2435	=back
1738		2436
1739	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1745	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>
1746	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
1747	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1748		2446
1749	=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	};
1750		2462
1751	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1752	# with dialog boxes.	2464	# with dialog boxes.
1753	#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
1754	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1756		2468
1757	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1758		2470
1759	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1760	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1761	} 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 {
1762	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1763	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1764	}	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 (@_);
1765	}	2496	}
1766		2497
1767	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1768		2499
1769	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1782		2513
1783	=item $player_object->enter_link	2514	=item $player_object->enter_link
1784		2515
1785	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}>).
1786		2517
1787	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.
1788	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.
1789		2522
1790	Will never block.	2523	Will never block.
1791		2524
1792	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1793		2526
…		…
1816	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1817		2550
1818	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1819		2552
1820	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1821	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1822		2555
1823	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1824	}	2557	}
1825		2558
1826	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1827	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1828		2563
1829	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1830		2565
1831	unless ($map) {	2566	unless ($map) {
1832	# restore original map position	2567	# restore original map position
…		…
1843	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1844	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1845		2580
1846	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1847	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1848	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1849		2584
1850	$map->load;	2585	$map->load;
1851	$map->load_diag;	2586	$map->load_neighbours;
1852		2587
1853	return unless $self->contr->active;	2588	return unless $self->contr->active;
1854	$self->activate_recursive;
1855		2589
1856	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1857	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1858	}
1859		2592
1860	cf::player->attach (	2593	# only activate afterwards, to support waiting in hooks
1861	on_logout => sub {	2594	$self->activate_recursive;
1862	my ($pl) = @_;	2595	}
1863		2596
1864	# abort map switching before logout	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1865	if ($pl->ob->{_link_pos}) {
1866	cf::sync_job {
1867	$pl->ob->leave_link
1868	};
1869	}
1870	},
1871	on_login => sub {
1872	my ($pl) = @_;
1873		2598
1874	# try to abort aborted map switching on player login :)	2599	Moves the player to the given map-path and coordinates by first freezing
1875	# should happen only on crashes	2600	her, loading and preparing them map, calling the provided $check callback
1876	if ($pl->ob->{_link_pos}) {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1877	$pl->ob->enter_link;	2602	the new (success) or old (failed) map position. In either case, $done will
1878	(async {	2603	be called at the end of this process.
1879	$pl->ob->reply (undef,
1880	"There was an internal problem at your last logout, "
1881	. "the server will try to bring you to your intended destination in a second.",
1882	cf::NDI_RED);
1883	# we need this sleep as the login has a concurrent enter_exit running
1884	# and this sleep increases chances of the player not ending up in scorn
1885	Coro::Timer::sleep 1;
1886	$pl->ob->leave_link;
1887	})->prio (2);
1888	}
1889	},
1890	);
1891		2604
1892	=item $player_object->goto ($path, $x, $y)	2605	Note that $check will be called with a potentially non-loaded map, so if
		2606	it needs a loaded map it has to call C<< ->load >>.
1893		2607
1894	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1895		2611
1896	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1897	my ($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;
1898		2617
1899	$self->enter_link;	2618	$self->enter_link;
1900		2619
1901	(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
1902	my $map = eval {	2642	my $map = eval {
1903	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1904	$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
1905	$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 $@;
1906	} or	2658	}
1907	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1908		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1909	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1910	})->prio (1);	2666	})->prio (1);
1911	}	2667	}
1912		2668
1913	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1914		2670
…		…
1934	}	2690	}
1935		2691
1936	sub prepare_random_map {	2692	sub prepare_random_map {
1937	my ($exit) = @_;	2693	my ($exit) = @_;
1938		2694
1939	my $guard = cf::lock_acquire "exit_prepare:$exit";
1940
1941	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
1942	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
1943	# that depends on the exit object	2697	# that depends on the exit object
1944		2698
1945	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
1947	if ($exit->map) {	2701	if ($exit->map) {
1948	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
1949	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
1950	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
1951	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
1952	}	2708	}
1953		2709
1954	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
1955		2711
1956	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1957	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
1958	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
1959		2715
1960	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1961	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
1962	undef $fh;	2718	undef $fh;
1963	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
1964		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
1965	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
1966	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
1967	}	2727	}
1968	}	2728	}
1969		2729
1970	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
1971	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
1972		2732
1973	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
1974		2734
1975	if ($exit->slaying eq "/!") {
1976	#TODO: this should de-fi-ni-te-ly not be a sync-job
1977	# the problem is that $exit might not survive long enough
1978	# so it needs to be done right now, right here
1979	cf::sync_job { prepare_random_map $exit };
1980	}
1981
1982	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1983	my $hp = $exit->stats->hp;
1984	my $sp = $exit->stats->sp;
1985
1986	$self->enter_link;	2735	$self->enter_link;
1987		2736
1988	(async {	2737	(async {
1989	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
1990	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
1991	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
1992		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
1993	1;	2761	1
1994	}) {	2762	}) {
1995	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
1996	. "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. "
1997	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
1998	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
1999		2767
2000	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
…		…
2019		2787
2020	utf8::encode $text;	2788	utf8::encode $text;
2021	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2022	}	2790	}
2023		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
2024	=item $client->ext_event ($type, %msg)	2979	=item $client->ext_msg ($type, @msg)
2025		2980
2026	Sends an exti event to the client.	2981	Sends an ext event to the client.
2027		2982
2028	=cut	2983	=cut
2029		2984
2030	sub cf::client::ext_event($$%) {	2985	sub cf::client::ext_msg($$@) {
2031	my ($self, $type, %msg) = @_;	2986	my ($self, $type, @msg) = @_;
2032		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
2033	$msg{msgtype} = "event_$type";	2991	push @msg, msgtype => "event_$type";
2034	$self->send_packet ("ext " . cf::to_json \%msg);	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	}
2035	}	3012	}
2036		3013
2037	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
2038		3015
2039	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
2040	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>,
2041	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>.
2042		3019
2043	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
2044	reliable at some point in the future.	3021	become reliable at some point in the future.
2045		3022
2046	=cut	3023	=cut
2047		3024
2048	sub cf::client::query {	3025	sub cf::client::query {
2049	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
2057	utf8::encode $text;	3034	utf8::encode $text;
2058	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2059		3036
2060	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
2061	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
2062	}	3041	}
2063		3042
2064	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	},
2065	on_reply => sub {	3049	on_reply => sub {
2066	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
2067		3051
2068	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
2069	# get handled first	3053	# get handled first
…		…
2081	} else {	3065	} else {
2082	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2083	}	3067	}
2084	}	3068	}
2085	},	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	},
2086	);	3096	);
2087		3097
2088	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
2089		3099
2090	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
2131	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
2132	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
2133		3143
2134	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
2135		3145
2136	$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	));
2137		3151
2138	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
2139		3153
2140	=pod	3154	=pod
2141		3155
2142	The following functions and methods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
2143		3157
2144	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
2145	cf::object::player player	3163	cf::object::player
2146	cf::player peaceful	3164	player
2147	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2148		3171
2149	=cut	3172	=cut
2150		3173
2151	for (	3174	for (
2152	["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)],
2153	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2154	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2155	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2156	) {	3181	) {
2157	no strict 'refs';	3182	no strict 'refs';
2158	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2159	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2176	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2177		3202
2178	my $qcode = $code;	3203	my $qcode = $code;
2179	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2180	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2181		3208
2182	local $_;	3209	local $_;
2183	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2184		3211
2185	my $eval =	3212	my $eval =
…		…
2228	=back	3255	=back
2229		3256
2230	=cut	3257	=cut
2231		3258
2232	#############################################################################	3259	#############################################################################
2233
2234	=head2 EXTENSION DATABASE SUPPORT
2235
2236	Crossfire maintains a very simple database for extension use. It can
2237	currently store anything that can be serialised using Storable, which
2238	excludes objects.
2239
2240	The parameter C<$family> should best start with the name of the extension
2241	using it, it should be unique.
2242
2243	=over 4
2244
2245	=item $value = cf::db_get $family => $key
2246
2247	Returns a single value from the database.
2248
2249	=item cf::db_put $family => $key => $value
2250
2251	Stores the given C<$value> in the family.
2252
2253	=cut
2254
2255	our $DB;
2256
2257	sub db_init {
2258	unless ($DB) {
2259	$DB = BDB::db_create $DB_ENV;
2260
2261	cf::sync_job {
2262	eval {
2263	$DB->set_flags (BDB::CHKSUM);
2264
2265	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2266	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2267	cf::cleanup "db_open(db): $!" if $!;
2268	};
2269	cf::cleanup "db_open(db): $@" if $@;
2270	};
2271
2272	my $path = cf::localdir . "/database.pst";
2273	if (stat $path) {
2274	cf::sync_job {
2275	my $pst = Storable::retrieve $path;
2276
2277	cf::db_put (board => data => $pst->{board});
2278	cf::db_put (guildrules => data => $pst->{guildrules});
2279	cf::db_put (rent => balance => $pst->{rent}{balance});
2280	BDB::db_env_txn_checkpoint $DB_ENV;
2281
2282	unlink $path;
2283	};
2284	}
2285	}
2286	}
2287
2288	sub db_get($$) {
2289	my $key = "$_[0]/$_[1]";
2290
2291	cf::sync_job {
2292	BDB::db_get $DB, undef, $key, my $data;
2293
2294	$! ? ()
2295	: Compress::LZF::sthaw $data
2296	}
2297	}
2298
2299	sub db_put($$$) {
2300	BDB::dbreq_pri 4;
2301	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2302	}
2303
2304	#############################################################################
2305	# the server's init and main functions	3260	# the server's init and main functions
2306		3261
2307	sub load_facedata {	3262	sub load_facedata($) {
2308	my $path = sprintf "%s/facedata", cf::datadir;	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;
2309		3270
2310	warn "loading facedata from $path\n";	3271	warn "loading facedata from $path\n";
2311		3272
2312	my $facedata;	3273	my $facedata;
2313	0 < aio_load $path, $facedata	3274	0 < aio_load $path, $facedata
2314	or die "$path: $!";	3275	or die "$path: $!";
2315		3276
2316	Coro::cede;
2317	$facedata = Storable::thaw $facedata;	3277	$facedata = Coro::Storable::thaw $facedata;
2318	Coro::cede;
2319		3278
2320	$facedata->{version} == 2	3279	$facedata->{version} == 2
2321	or cf::cleanup "$path: version mismatch, cannot proceed.";	3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
2322		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
2323	{	3289	{
2324	my $faces = $facedata->{faceinfo};	3290	my $faces = $facedata->{faceinfo};
2325		3291
2326	while (my ($face, $info) = each %$faces) {	3292	while (my ($face, $info) = each %$faces) {
2327	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3294
2328	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3295	cf::face::set_visibility $idx, $info->{visibility};
		3296	cf::face::set_magicmap $idx, $info->{magicmap};
2329	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2330	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2331	Coro::cede;	3299
		3300	cf::cede_to_tick;
2332	}	3301	}
2333		3302
2334	while (my ($face, $info) = each %$faces) {	3303	while (my ($face, $info) = each %$faces) {
2335	next unless $info->{smooth};	3304	next unless $info->{smooth};
		3305
2336	my $idx = cf::face::find $face	3306	my $idx = cf::face::find $face
2337	or next;	3307	or next;
		3308
2338	if (my $smooth = cf::face::find $info->{smooth}) {	3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
2339	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2340	} else {	3312	} else {
2341	warn "smooth face '$info->{smooth}' not found for face '$face'";	3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
2342	}	3314	}
2343	Coro::cede;	3315
		3316	cf::cede_to_tick;
2344	}	3317	}
2345	}	3318	}
2346		3319
2347	{	3320	{
2348	my $anims = $facedata->{animinfo};	3321	my $anims = $facedata->{animinfo};
2349		3322
2350	while (my ($anim, $info) = each %$anims) {	3323	while (my ($anim, $info) = each %$anims) {
2351	cf::anim::set $anim, $info->{frames}, $info->{facings};	3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
2352	Coro::cede;	3325	cf::cede_to_tick;
2353	}	3326	}
2354		3327
2355	cf::anim::invalidate_all; # d'oh	3328	cf::anim::invalidate_all; # d'oh
2356	}	3329	}
2357		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
2358	1	3366	1
2359	}	3367	}
2360		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
		3397	sub load_resource_file($) {
		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"
		3413	or die "unable to load regions file\n";
		3414
		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
2361	sub reload_resources {	3436	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3437	warn "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	3438
2364	load_facedata	3439	reload_facedata;
2365	or die "unable to load facedata\n";#d#	3440	reload_archetypes;
2366	}
2367
2368	sub init {
2369	reload_resources;	3441	reload_regions;
2370	}	3442	reload_treasures;
2371		3443
2372	sub cfg_load {	3444	warn "finished reloading resource files\n";
		3445	}
		3446
		3447	sub reload_config {
		3448	warn "reloading config file...\n";
		3449
2373	open my $fh, "<:utf8", cf::confdir . "/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2374	or return;	3451	or return;
2375		3452
2376	local $/;	3453	local $/;
2377	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2378		3455
2379	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2380		3457
2381	$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};
2382	$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};
…		…
2386	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2387	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2388	};	3465	};
2389	warn $@ if $@;	3466	warn $@ if $@;
2390	}	3467	}
		3468
		3469	warn "finished reloading resource files\n";
		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;
2391	}	3498	}
2392		3499
2393	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
2394	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2395	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2396	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#
2397	(async {	3518	(async {
2398	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
2399	})->prio (Coro::PRIO_MAX);	3521	})->prio (Coro::PRIO_MAX);
2400	};	3522	};
2401		3523
2402	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
		3525
		3526	cf::sync_job {
		3527	reload_resources;
		3528	reload_config;
2403	db_init;	3529	db_init;
		3530
		3531	cf::load_settings;
		3532	cf::load_materials;
		3533	cf::init_uuid;
		3534	cf::init_signals;
		3535	cf::init_commands;
		3536	cf::init_skills;
		3537
		3538	cf::init_beforeplay;
		3539
		3540	atomic;
		3541
2404	load_extensions;	3542	load_extensions;
2405		3543
2406	$TICK_WATCHER->start;	3544	utime time, time, $RUNTIMEFILE;
2407	Event::loop;	3545
		3546	# no (long-running) fork's whatsoever before this point(!)
		3547	use POSIX ();
		3548	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3549
		3550	(pop @POST_INIT)->(0) while @POST_INIT;
		3551	};
		3552
		3553	main_loop;
2408	}	3554	}
2409		3555
2410	#############################################################################	3556	#############################################################################
2411	# initialisation and cleanup	3557	# initialisation and cleanup
2412		3558
2413	# install some emergency cleanup handlers	3559	# install some emergency cleanup handlers
2414	BEGIN {	3560	BEGIN {
		3561	our %SIGWATCHER = ();
2415	for my $signal (qw(INT HUP TERM)) {	3562	for my $signal (qw(INT HUP TERM)) {
2416	Event->signal (	3563	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2417	reentrant => 0,
2418	data => WF_AUTOCANCEL,
2419	signal => $signal,
2420	prio => 0,
2421	cb => sub {
2422	cf::cleanup "SIG$signal";	3564	cf::cleanup "SIG$signal";
2423	},
2424	);	3565	};
		3566	}
		3567	}
		3568
		3569	sub write_runtime_sync {
		3570	# first touch the runtime file to show we are still running:
		3571	# the fsync below can take a very very long time.
		3572
		3573	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3574
		3575	my $guard = cf::lock_acquire "write_runtime";
		3576
		3577	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3578	or return;
		3579
		3580	my $value = $cf::RUNTIME + 90 + 10;
		3581	# 10 is the runtime save interval, for a monotonic clock
		3582	# 60 allows for the watchdog to kill the server.
		3583
		3584	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3585	and return;
		3586
		3587	# always fsync - this file is important
		3588	aio_fsync $fh
		3589	and return;
		3590
		3591	# touch it again to show we are up-to-date
		3592	aio_utime $fh, undef, undef;
		3593
		3594	close $fh
		3595	or return;
		3596
		3597	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3598	and return;
		3599
		3600	warn "runtime file written.\n";
		3601
2425	}	3602	1
		3603	}
		3604
		3605	our $uuid_lock;
		3606	our $uuid_skip;
		3607
		3608	sub write_uuid_sync($) {
		3609	$uuid_skip ||= $_[0];
		3610
		3611	return if $uuid_lock;
		3612	local $uuid_lock = 1;
		3613
		3614	my $uuid = "$LOCALDIR/uuid";
		3615
		3616	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3617	or return;
		3618
		3619	my $value = uuid_seq uuid_cur;
		3620
		3621	unless ($value) {
		3622	warn "cowardly refusing to write zero uuid value!\n";
		3623	return;
		3624	}
		3625
		3626	my $value = uuid_str $value + $uuid_skip;
		3627	$uuid_skip = 0;
		3628
		3629	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3630	and return;
		3631
		3632	# always fsync - this file is important
		3633	aio_fsync $fh
		3634	and return;
		3635
		3636	close $fh
		3637	or return;
		3638
		3639	aio_rename "$uuid~", $uuid
		3640	and return;
		3641
		3642	warn "uuid file written ($value).\n";
		3643
		3644	1
		3645
		3646	}
		3647
		3648	sub write_uuid($$) {
		3649	my ($skip, $sync) = @_;
		3650
		3651	$sync ? write_uuid_sync $skip
		3652	: async { write_uuid_sync $skip };
2426	}	3653	}
2427		3654
2428	sub emergency_save() {	3655	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	3656	my $freeze_guard = cf::freeze_mainloop;
2430		3657
2431	warn "enter emergency perl save\n";	3658	warn "emergency_perl_save: enter\n";
2432		3659
2433	cf::sync_job {	3660	cf::sync_job {
		3661	# this is a trade-off: we want to be very quick here, so
		3662	# save all maps without fsync, and later call a global sync
		3663	# (which in turn might be very very slow)
		3664	local $USE_FSYNC = 0;
		3665
2434	# use a peculiar iteration method to avoid tripping on perl	3666	# use a peculiar iteration method to avoid tripping on perl
2435	# refcount bugs in for. also avoids problems with players	3667	# refcount bugs in for. also avoids problems with players
2436	# and maps saved/destroyed asynchronously.	3668	# and maps saved/destroyed asynchronously.
2437	warn "begin emergency player save\n";	3669	warn "emergency_perl_save: begin player save\n";
2438	for my $login (keys %cf::PLAYER) {	3670	for my $login (keys %cf::PLAYER) {
2439	my $pl = $cf::PLAYER{$login} or next;	3671	my $pl = $cf::PLAYER{$login} or next;
2440	$pl->valid or next;	3672	$pl->valid or next;
		3673	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2441	$pl->save;	3674	$pl->save;
2442	}	3675	}
2443	warn "end emergency player save\n";	3676	warn "emergency_perl_save: end player save\n";
2444		3677
2445	warn "begin emergency map save\n";	3678	warn "emergency_perl_save: begin map save\n";
2446	for my $path (keys %cf::MAP) {	3679	for my $path (keys %cf::MAP) {
2447	my $map = $cf::MAP{$path} or next;	3680	my $map = $cf::MAP{$path} or next;
2448	$map->valid or next;	3681	$map->valid or next;
2449	$map->save;	3682	$map->save;
2450	}	3683	}
2451	warn "end emergency map save\n";	3684	warn "emergency_perl_save: end map save\n";
2452		3685
2453	warn "begin emergency database checkpoint\n";	3686	warn "emergency_perl_save: begin database checkpoint\n";
2454	BDB::db_env_txn_checkpoint $DB_ENV;	3687	BDB::db_env_txn_checkpoint $DB_ENV;
2455	warn "end emergency database checkpoint\n";	3688	warn "emergency_perl_save: end database checkpoint\n";
		3689
		3690	warn "emergency_perl_save: begin write uuid\n";
		3691	write_uuid_sync 1;
		3692	warn "emergency_perl_save: end write uuid\n";
2456	};	3693	};
2457		3694
		3695	warn "emergency_perl_save: starting sync()\n";
		3696	IO::AIO::aio_sync sub {
		3697	warn "emergency_perl_save: finished sync()\n";
		3698	};
		3699
2458	warn "leave emergency perl save\n";	3700	warn "emergency_perl_save: leave\n";
2459	}	3701	}
2460		3702
2461	sub post_cleanup {	3703	sub post_cleanup {
2462	my ($make_core) = @_;	3704	my ($make_core) = @_;
2463		3705
2464	warn Carp::longmess "post_cleanup backtrace"	3706	warn Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	3707	if $make_core;
2466	}
2467		3708
		3709	my $fh = pidfile;
		3710	unlink $PIDFILE if <$fh> == $$;
		3711	}
		3712
		3713	# a safer delete_package, copied from Symbol
		3714	sub clear_package($) {
		3715	my $pkg = shift;
		3716
		3717	# expand to full symbol table name if needed
		3718	unless ($pkg =~ /^main::.*::$/) {
		3719	$pkg = "main$pkg" if $pkg =~ /^::/;
		3720	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3721	$pkg .= '::' unless $pkg =~ /::$/;
		3722	}
		3723
		3724	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3725	my $stem_symtab = *{$stem}{HASH};
		3726
		3727	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3728	or return;
		3729
		3730	# clear all symbols
		3731	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3732	for my $name (keys %$leaf_symtab) {
		3733	_gv_clear *{"$pkg$name"};
		3734	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3735	}
		3736	warn "cleared package $pkg\n";#d#
		3737	}
		3738
2468	sub reload() {	3739	sub do_reload_perl() {
2469	# can/must only be called in main	3740	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	3741	if ($Coro::current != $Coro::main) {
2471	warn "can only reload from main coroutine";	3742	warn "can only reload from main coroutine";
2472	return;	3743	return;
2473	}	3744	}
2474		3745
		3746	return if $RELOAD++;
		3747
		3748	my $t1 = EV::time;
		3749
		3750	while ($RELOAD) {
2475	warn "reloading...";	3751	warn "reloading...";
2476		3752
2477	warn "entering sync_job";	3753	warn "entering sync_job";
2478		3754
2479	cf::sync_job {	3755	cf::sync_job {
2480	cf::write_runtime; # external watchdog should not bark	3756	cf::write_runtime_sync; # external watchdog should not bark
2481	cf::emergency_save;	3757	cf::emergency_save;
2482	cf::write_runtime; # external watchdog should not bark	3758	cf::write_runtime_sync; # external watchdog should not bark
2483		3759
2484	warn "syncing database to disk";	3760	warn "syncing database to disk";
2485	BDB::db_env_txn_checkpoint $DB_ENV;	3761	BDB::db_env_txn_checkpoint $DB_ENV;
2486		3762
2487	# if anything goes wrong in here, we should simply crash as we already saved	3763	# if anything goes wrong in here, we should simply crash as we already saved
2488		3764
2489	warn "cancelling all WF_AUTOCANCEL watchers";
2490	for (Event::all_watchers) {
2491	$_->cancel if $_->data & WF_AUTOCANCEL;
2492	}
2493
2494	warn "flushing outstanding aio requests";	3765	warn "flushing outstanding aio requests";
2495	for (;;) {
2496	BDB::flush;
2497	IO::AIO::flush;
2498	Coro::cede;
2499	last unless IO::AIO::nreqs || BDB::nreqs;	3766	while (IO::AIO::nreqs || BDB::nreqs) {
2500	warn "iterate...";	3767	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2501	}
2502
2503	++$RELOAD;
2504
2505	warn "cancelling all extension coros";
2506	$_->cancel for values %EXT_CORO;
2507	%EXT_CORO = ();
2508
2509	warn "removing commands";
2510	%COMMAND = ();
2511
2512	warn "removing ext commands";
2513	%EXTCMD = ();
2514
2515	warn "unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";
2518
2519	if (my $cb = $pkg->can ("unload")) {
2520	eval {
2521	$cb->($pkg);
2522	1
2523	} or warn "$pkg unloaded, but with errors: $@";
2524	}	3768	}
2525		3769
2526	warn "... nuking $pkg";	3770	warn "cancelling all extension coros";
2527	Symbol::delete_package $pkg;	3771	$_->cancel for values %EXT_CORO;
2528	}	3772	%EXT_CORO = ();
2529		3773
2530	warn "unloading all perl modules loaded from $LIBDIR";	3774	warn "removing commands";
2531	while (my ($k, $v) = each %INC) {	3775	%COMMAND = ();
2532	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2533		3776
		3777	warn "removing ext/exti commands";
		3778	%EXTCMD = ();
		3779	%EXTICMD = ();
		3780
		3781	warn "unloading/nuking all extensions";
		3782	for my $pkg (@EXTS) {
2534	warn "... unloading $k";	3783	warn "... unloading $pkg";
2535	delete $INC{$k};
2536		3784
2537	$k =~ s/\.pm$//;
2538	$k =~ s/\//::/g;
2539
2540	if (my $cb = $k->can ("unload_module")) {	3785	if (my $cb = $pkg->can ("unload")) {
		3786	eval {
2541	$cb->();	3787	$cb->($pkg);
		3788	1
		3789	} or warn "$pkg unloaded, but with errors: $@";
		3790	}
		3791
		3792	warn "... clearing $pkg";
		3793	clear_package $pkg;
2542	}	3794	}
2543		3795
2544	Symbol::delete_package $k;	3796	warn "unloading all perl modules loaded from $LIBDIR";
		3797	while (my ($k, $v) = each %INC) {
		3798	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3799
		3800	warn "... unloading $k";
		3801	delete $INC{$k};
		3802
		3803	$k =~ s/\.pm$//;
		3804	$k =~ s/\//::/g;
		3805
		3806	if (my $cb = $k->can ("unload_module")) {
		3807	$cb->();
		3808	}
		3809
		3810	clear_package $k;
2545	}	3811	}
2546		3812
2547	warn "getting rid of safe::, as good as possible";	3813	warn "getting rid of safe::, as good as possible";
2548	Symbol::delete_package "safe::$_"	3814	clear_package "safe::$_"
2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3815	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2550		3816
2551	warn "unloading cf.pm \"a bit\"";	3817	warn "unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	3818	delete $INC{"cf.pm"};
		3819	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2553		3820
2554	# don't, removes xs symbols, too,	3821	# don't, removes xs symbols, too,
2555	# and global variables created in xs	3822	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	3823	#clear_package __PACKAGE__;
2557		3824
2558	warn "unload completed, starting to reload now";	3825	warn "unload completed, starting to reload now";
2559		3826
2560	warn "reloading cf.pm";	3827	warn "reloading cf.pm";
2561	require cf;	3828	require cf;
2562	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3829	cf::_connect_to_perl_1;
2563		3830
2564	warn "loading config and database again";	3831	warn "loading config and database again";
2565	cf::cfg_load;	3832	cf::reload_config;
2566		3833
2567	warn "loading extensions";	3834	warn "loading extensions";
2568	cf::load_extensions;	3835	cf::load_extensions;
2569		3836
		3837	if ($REATTACH_ON_RELOAD) {
2570	warn "reattaching attachments to objects/players";	3838	warn "reattaching attachments to objects/players";
2571	_global_reattach; # objects, sockets	3839	_global_reattach; # objects, sockets
2572	warn "reattaching attachments to maps";	3840	warn "reattaching attachments to maps";
2573	reattach $_ for values %MAP;	3841	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	3842	warn "reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	3843	reattach $_ for values %PLAYER;
		3844	}
2576		3845
2577	warn "loading reloadable resources";	3846	warn "running post_init jobs";
2578	reload_resources;	3847	(pop @POST_INIT)->(1) while @POST_INIT;
2579		3848
2580	warn "leaving sync_job";	3849	warn "leaving sync_job";
2581		3850
2582	1	3851	1
2583	} or do {	3852	} or do {
2584	warn $@;	3853	warn $@;
2585	warn "error while reloading, exiting.";	3854	cf::cleanup "error while reloading, exiting.";
2586	exit 1;	3855	};
		3856
		3857	warn "reloaded";
		3858	--$RELOAD;
		3859	}
		3860
		3861	$t1 = EV::time - $t1;
		3862	warn "reload completed in ${t1}s\n";
		3863	};
		3864
		3865	our $RELOAD_WATCHER; # used only during reload
		3866
		3867	sub reload_perl() {
		3868	# doing reload synchronously and two reloads happen back-to-back,
		3869	# coro crashes during coro_state_free->destroy here.
		3870
		3871	$RELOAD_WATCHER ||= cf::async {
		3872	Coro::AIO::aio_wait cache_extensions;
		3873
		3874	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3875	do_reload_perl;
		3876	undef $RELOAD_WATCHER;
		3877	};
2587	};	3878	};
2588		3879	}
2589	warn "reloaded";
2590	};
2591
2592	our $RELOAD_WATCHER; # used only during reload
2593		3880
2594	register_command "reload" => sub {	3881	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	3882	my ($who, $arg) = @_;
2596		3883
2597	if ($who->flag (FLAG_WIZ)) {	3884	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	3885	$who->message ("reloading server.");
2599		3886	async {
2600	# doing reload synchronously and two reloads happen back-to-back,	3887	$Coro::current->{desc} = "perl_reload";
2601	# coro crashes during coro_state_free->destroy here.
2602
2603	$RELOAD_WATCHER ||= Event->timer (
2604	reentrant => 0,
2605	after => 0,
2606	data => WF_AUTOCANCEL,
2607	cb => sub {
2608	reload;	3888	reload_perl;
2609	undef $RELOAD_WATCHER;
2610	},
2611	);	3889	};
2612	}	3890	}
2613	};	3891	};
2614		3892
2615	unshift @INC, $LIBDIR;	3893	unshift @INC, $LIBDIR;
2616		3894
2617	my $bug_warning = 0;	3895	my $bug_warning = 0;
2618		3896
2619	$TICK_WATCHER = Event->timer (	3897	our @WAIT_FOR_TICK;
2620	reentrant => 0,	3898	our @WAIT_FOR_TICK_BEGIN;
2621	parked => 1,	3899
2622	prio => 0,	3900	sub wait_for_tick {
2623	at => $NEXT_TICK || $TICK,	3901	return if tick_inhibit || $Coro::current == $Coro::main;
2624	data => WF_AUTOCANCEL,	3902
2625	cb => sub {	3903	my $signal = new Coro::Signal;
		3904	push @WAIT_FOR_TICK, $signal;
		3905	$signal->wait;
		3906	}
		3907
		3908	sub wait_for_tick_begin {
		3909	return if tick_inhibit || $Coro::current == $Coro::main;
		3910
		3911	my $signal = new Coro::Signal;
		3912	push @WAIT_FOR_TICK_BEGIN, $signal;
		3913	$signal->wait;
		3914	}
		3915
		3916	sub tick {
2626	if ($Coro::current != $Coro::main) {	3917	if ($Coro::current != $Coro::main) {
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3918	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	3919	unless ++$bug_warning > 10;
2629	return;	3920	return;
2630	}	3921	}
2631		3922
2632	$NOW = Event::time;
2633
2634	cf::server_tick; # one server iteration	3923	cf::server_tick; # one server iteration
2635	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;
2637		3924
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3925	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	3926	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2640	Coro::async_pool {	3927	Coro::async_pool {
		3928	$Coro::current->{desc} = "runtime saver";
2641	write_runtime	3929	write_runtime_sync
2642	or warn "ERROR: unable to write runtime file: $!";	3930	or warn "ERROR: unable to write runtime file: $!";
2643	};
2644	}	3931	};
2645
2646	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648
2649	# my $AFTER = Event::time;
2650	# warn $AFTER - $NOW;#d#
2651
2652	# if we are delayed by four ticks or more, skip them all
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2654
2655	$TICK_WATCHER->at ($NEXT_TICK);
2656	$TICK_WATCHER->start;
2657	},	3932	}
2658	);	3933
		3934	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3935	$sig->send;
		3936	}
		3937	while (my $sig = shift @WAIT_FOR_TICK) {
		3938	$sig->send;
		3939	}
		3940
		3941	$LOAD = ($NOW - $TICK_START) / $TICK;
		3942	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3943
		3944	if (0) {
		3945	if ($NEXT_TICK) {
		3946	my $jitter = $TICK_START - $NEXT_TICK;
		3947	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3948	warn "jitter $JITTER\n";#d#
		3949	}
		3950	}
		3951	}
2659		3952
2660	{	3953	{
2661	BDB::max_poll_time $TICK * 0.1;	3954	# configure BDB
2662	$BDB_POLL_WATCHER = Event->io (	3955
2663	reentrant => 0,
2664	fd => BDB::poll_fileno,
2665	poll => 'r',
2666	prio => 0,
2667	data => WF_AUTOCANCEL,
2668	cb => \&BDB::poll_cb,
2669	);
2670	BDB::min_parallel 8;	3956	BDB::min_parallel 8;
2671		3957	BDB::max_poll_reqs $TICK * 0.1;
2672	BDB::set_sync_prepare {	3958	$AnyEvent::BDB::WATCHER->priority (1);
2673	my $status;
2674	my $current = $Coro::current;
2675	(
2676	sub {
2677	$status = $!;
2678	$current->ready; undef $current;
2679	},
2680	sub {
2681	Coro::schedule while defined $current;
2682	$! = $status;
2683	},
2684	)
2685	};
2686		3959
2687	unless ($DB_ENV) {	3960	unless ($DB_ENV) {
2688	$DB_ENV = BDB::db_env_create;	3961	$DB_ENV = BDB::db_env_create;
		3962	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3963	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3964	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3965	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3966	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2689		3967
2690	cf::sync_job {	3968	cf::sync_job {
2691	eval {	3969	eval {
2692	BDB::db_env_open	3970	BDB::db_env_open
2693	$DB_ENV,	3971	$DB_ENV,
2694	$BDB_ENV_DIR,	3972	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3973	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3974	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	3975	0666;
2698		3976
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3977	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702	$DB_ENV->set_lk_detect;
2703	};	3978	};
2704		3979
2705	cf::cleanup "db_env_open(db): $@" if $@;	3980	cf::cleanup "db_env_open(db): $@" if $@;
2706	};	3981	};
2707	}	3982	}
		3983
		3984	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3985	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3986	};
		3987	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3988	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3989	};
		3990	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3991	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3992	};
2708	}	3993	}
2709		3994
2710	{	3995	{
		3996	# configure IO::AIO
		3997
2711	IO::AIO::min_parallel 8;	3998	IO::AIO::min_parallel 8;
2712
2713	undef $Coro::AIO::WATCHER;
2714	IO::AIO::max_poll_time $TICK * 0.1;	3999	IO::AIO::max_poll_time $TICK * 0.1;
2715	$AIO_POLL_WATCHER = Event->io (	4000	undef $AnyEvent::AIO::WATCHER;
2716	reentrant => 0,
2717	data => WF_AUTOCANCEL,
2718	fd => IO::AIO::poll_fileno,
2719	poll => 'r',
2720	prio => 6,
2721	cb => \&IO::AIO::poll_cb,
2722	);
2723	}	4001	}
		4002
		4003	my $_log_backtrace;
		4004
		4005	sub _log_backtrace {
		4006	my ($msg, @addr) = @_;
		4007
		4008	$msg =~ s/\n//;
		4009
		4010	# limit the # of concurrent backtraces
		4011	if ($_log_backtrace < 2) {
		4012	++$_log_backtrace;
		4013	my $perl_bt = Carp::longmess $msg;
		4014	async {
		4015	$Coro::current->{desc} = "abt $msg";
		4016
		4017	my @bt = fork_call {
		4018	@addr = map { sprintf "%x", $_ } @addr;
		4019	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4020	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4021	or die "addr2line: $!";
		4022
		4023	my @funcs;
		4024	my @res = <$fh>;
		4025	chomp for @res;
		4026	while (@res) {
		4027	my ($func, $line) = splice @res, 0, 2, ();
		4028	push @funcs, "[$func] $line";
		4029	}
		4030
		4031	@funcs
		4032	};
		4033
		4034	LOG llevInfo, "[ABT] $perl_bt\n";
		4035	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4036	LOG llevInfo, "[ABT] $_\n" for @bt;
		4037	--$_log_backtrace;
		4038	};
		4039	} else {
		4040	LOG llevInfo, "[ABT] $msg\n";
		4041	LOG llevInfo, "[ABT] [suppressed]\n";
		4042	}
		4043	}
		4044
		4045	# load additional modules
		4046	require "cf/$_.pm" for @EXTRA_MODULES;
		4047	cf::_connect_to_perl_2;
2724		4048
2725	END { cf::emergency_save }	4049	END { cf::emergency_save }
2726		4050
2727	1	4051	1
2728		4052

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