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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.229 by root, Sun Apr 1 00:36:34 2007 UTC vs.
Revision 1.495 by root, Tue Nov 10 04:38:45 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
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"
		737	}
		738
		739	=item cf::datalog type => key => value, ...
		740
		741	Log a datalog packet of the given type with the given key-value pairs.
		742
		743	=cut
		744
		745	sub datalog($@) {
		746	my ($type, %kv) = @_;
		747	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
376	}	748	}
377		749
378	=back	750	=back
379		751
380	=cut	752	=cut
381		753
382	#############################################################################	754	#############################################################################
383		755
384	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
385		757
386	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
387	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")
388	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
389		761
390	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>
391	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
392	crossfire+).	764	Deliantra).
393		765
394	=over 4	766	=over 4
395		767
396	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
397		769
…		…
441	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
442		814
443	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
444	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
445		817
446	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
447	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.
448		820
449	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
450		822
451	=over 4	823	=over 4
…		…
560	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
561		933
562	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
563	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
564	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
565	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
566		938
567	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
568	my $pkg = shift @arg;	940	my $pkg = shift @arg;
569		941
570	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
599	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
600	}	972	}
601		973
602	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
603	} else {	975	} else {
604	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
605	}	977	}
606		978
607	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
608	}	980	}
609		981
…		…
611	if (ref $_[0]) {	983	if (ref $_[0]) {
612	_object_attach @_;	984	_object_attach @_;
613	} else {	985	} else {
614	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
615	}	987	}
		988	_recalc_want;
616	};	989	};
617		990
618	# all those should be optimised	991	# all those should be optimised
619	sub cf::attachable::detach {	992	sub cf::attachable::detach {
620	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
623	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
624	reattach ($obj);	997	reattach ($obj);
625	} else {	998	} else {
626	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
627	}	1000	}
		1001	_recalc_want;
628	};	1002	};
629		1003
630	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
631	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
632		1006
…		…
647	";	1021	";
648	die if $@;	1022	die if $@;
649	}	1023	}
650		1024
651	our $override;	1025	our $override;
652	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?
653		1027
654	sub override {	1028	sub override {
655	$override = 1;	1029	$override = 1;
656	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
657	}	1031	}
658		1032
659	sub do_invoke {	1033	sub do_invoke {
660	my $event = shift;	1034	my $event = shift;
661	my $callbacks = shift;	1035	my $callbacks = shift;
662		1036
663	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
664		1038
665	local $override;	1039	local $override;
666		1040
667	for (@$callbacks) {	1041	for (@$callbacks) {
668	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
677	}	1051	}
678		1052
679	0	1053	0
680	}	1054	}
681		1055
682	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
683		1057
684	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
685		1059
686	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
687		1061
688	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
689	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
690	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
691		1065
692	=back	1066	=back
693		1067
694	=cut	1068	=cut
695		1069
696	#############################################################################	1070	#############################################################################
697	# 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, $ob2
		1113	}
698		1114
699	sub reattach {	1115	sub reattach {
700	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
701	my ($obj) = @_;	1117	my ($obj) = @_;
702		1118
		1119	# no longer needed after getting rid of delete_package?
703	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
704		1121
705	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
706		1123
707	@$registry = ();	1124	@$registry = ();
708		1125
…		…
723	cf::attachable->attach (	1140	cf::attachable->attach (
724	prio => -1000000,	1141	prio => -1000000,
725	on_instantiate => sub {	1142	on_instantiate => sub {
726	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
727		1144
728	$data = from_json $data;	1145	$data = decode_json $data;
729		1146
730	for (@$data) {	1147	for (@$data) {
731	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
732		1149
733	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
749	sub object_freezer_save {	1166	sub object_freezer_save {
750	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
751		1168
752	sync_job {	1169	sync_job {
753	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
754	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
755	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
756		1174
757	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
758	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
759	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
760	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	}
761	close $fh;	1182	aio_close $fh;
762		1183
763	if (@$objs) {	1184	if (@$objs) {
764	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) {
765	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
766	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
767	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
768	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	}
769	close $fh;	1193	aio_close $fh;
770	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
771	}	1195	}
772	} else {	1196	} else {
773	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
774	}	1198	}
775		1199
776	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
777	} else {	1204	} else {
778	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
779	}	1206	}
780	} else {	1207	} else {
781	aio_unlink $filename;	1208	aio_unlink $filename;
782	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
783	}	1210	}
784	}	1211	};
785	}	1212	}
786		1213
787	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
788	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
789		1216
…		…
801	or return;	1228	or return;
802		1229
803	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
804	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
805	or return;	1232	or return;
		1233
806	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
807	}	1236	}
808		1237
		1238	utf8::decode (my $decname = $filename);
809	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
810	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
811	return ($data, $av);	1242	($data, $av)
812	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
813		1250
814	#############################################################################	1251	#############################################################################
815	# command handling &c	1252	# command handling &c
816		1253
817	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
830	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
831	}	1268	}
832		1269
833	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
834		1271
835	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.
836		1277
837	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
838	called.	1279	called.
839		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
840	=cut	1292	=cut
841		1293
842	sub register_extcmd {	1294	sub register_extcmd {
843	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
844		1296
845	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
846	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
847		1307
848	cf::player->attach (	1308	cf::player->attach (
849	on_command => sub {	1309	on_command => sub {
850	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
851		1311
…		…
859	cf::override;	1319	cf::override;
860	},	1320	},
861	on_extcmd => sub {	1321	on_extcmd => sub {
862	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
863		1323
864	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
865		1325
866	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
867	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
868	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
869	$pl->ext_reply ($msg->{msgid}, %reply);
870	}
871	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
872	} else {	1341	} else {
873	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
874	}	1343	}
875		1344
876	cf::override;	1345	cf::override;
877	},	1346	},
878	);	1347	);
879		1348
		1349	# "readahead" all extensions
880	sub load_extension {	1350	sub cache_extensions {
881	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
882		1352
883	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
884	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
885	my $pkg = $1;	1355	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
886	$pkg =~ s/[^[:word:]]/_/g;
887	$pkg = "ext::$pkg";
888
889	warn "... loading '$path' into '$pkg'\n";
890
891	open my $fh, "<:utf8", $path
892	or die "$path: $!";
893
894	my $source =
895	"package $pkg; use strict; use utf8;\n"
896	. "#line 1 \"$path\"\n{\n"
897	. (do { local $/; <$fh> })
898	. "\n};\n1";
899
900	unless (eval $source) {
901	my $msg = $@ ? "$path: $@\n"
902	: "extension disabled.\n";
903	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
904	warn $@;
905	warn "mandatory extension failed to load, exiting.\n";
906	exit 1;
907	}	1356	}
908	die $@;
909	}	1357	};
910		1358
911	push @EXTS, $pkg;	1359	$grp
912	}	1360	}
913		1361
914	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
915	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
916	next unless -r $ext;	1367	next unless -r $path;
917	eval {	1368
918	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	$progress = 1;
919	1	1425	}
920	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
921	}	1431	};
922	}	1432	}
923		1433
924	#############################################################################	1434	#############################################################################
925		1435
		1436	=back
		1437
926	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
927		1439
928	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
929		1441
930	=cut	1442	=cut
931		1443
932	package cf::player;	1444	package cf::player;
933		1445
…		…
935		1447
936	=head3 cf::player	1448	=head3 cf::player
937		1449
938	=over 4	1450	=over 4
939		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
940	=item cf::player::find $login	1466	=item cf::player::find $login
941		1467
942	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
943		1469
944	=cut	1470	=cut
945		1471
946	sub playerdir($) {	1472	sub playerdir($) {
947	cf::localdir	1473	"$PLAYERDIR/"
948	. "/"
949	. cf::playerdir
950	. "/"
951	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1474	. (ref $_[0] ? $_[0]->ob->name : $_[0])
952	}	1475	}
953		1476
954	sub path($) {	1477	sub path($) {
955	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1478	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
956		1479
957	(playerdir $login) . "/$login.pl"	1480	(playerdir $login) . "/playerdata"
958	}	1481	}
959		1482
960	sub find_active($) {	1483	sub find_active($) {
961	$cf::PLAYER{$_[0]}	1484	$cf::PLAYER{$_[0]}
962	and $cf::PLAYER{$_[0]}->active	1485	and $cf::PLAYER{$_[0]}->active
…		…
965		1488
966	sub exists($) {	1489	sub exists($) {
967	my ($login) = @_;	1490	my ($login) = @_;
968		1491
969	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
970	or cf::sync_job { !aio_stat path $login }	1493	or !aio_stat path $login
971	}	1494	}
972		1495
973	sub find($) {	1496	sub find($) {
974	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
975	my $login = $_[0];	1498	my $login = $_[0];
976		1499
977	my $guard = cf::lock_acquire "user_find:$login";	1500	my $guard = cf::lock_acquire "user_find:$login";
978		1501
979	$cf::PLAYER{$_[0]} || do {	1502	$cf::PLAYER{$_[0]} || do {
980	my $pl = load_pl path $login	1503	# rename old playerfiles to new ones
		1504	#TODO: remove when no longer required
		1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1508	aio_unlink +(playerdir $login) . "/$login.pl";
		1509
		1510	my $f = new_from_file cf::object::thawer path $login
981	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;
982	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
983	}	1519	}
984	}	1520	}
985	}	1521	}
986		1522
…		…
995	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
996		1532
997	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
998	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
999		1535
		1536	cf::get_slot 0.01;
		1537
1000	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
1001	Coro::cede;	1539	cf::cede_to_tick;
1002	}	1540	}
1003		1541
1004	sub new($) {	1542	sub new($) {
1005	my ($login) = @_;	1543	my ($login) = @_;
1006		1544
…		…
1012	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
1013		1551
1014	$self	1552	$self
1015	}	1553	}
1016		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
1017	=item $pl->quit_character	1565	=item $pl->quit_character
1018		1566
1019	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1020	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1021		1569
…		…
1025	my ($pl) = @_;	1573	my ($pl) = @_;
1026		1574
1027	my $name = $pl->ob->name;	1575	my $name = $pl->ob->name;
1028		1576
1029	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1030	$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
1031		1579
1032	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1033	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1034	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1035	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1036		1586
1037	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1038	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1068	while and may block, so not sync_job-capable, ever.	1618	while and may block, so not sync_job-capable, ever.
1069		1619
1070	=cut	1620	=cut
1071		1621
1072	sub list_logins {	1622	sub list_logins {
1073	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1623	my $dirs = aio_readdir $PLAYERDIR
1074	or return [];	1624	or return [];
1075		1625
1076	my @logins;	1626	my @logins;
1077		1627
1078	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") {
1079	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1080	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1081	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1082		1638
1083	utf8::decode $login;	1639	utf8::decode $login;
1084	push @logins, $login;	1640	push @logins, $login;
1085	}	1641	}
1086		1642
…		…
1113	}	1669	}
1114		1670
1115	\@paths	1671	\@paths
1116	}	1672	}
1117		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1118	=item $player->ext_reply ($msgid, $msgtype, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1119		1679
1120	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1121		1681
1122	=cut	1682	=cut
1123		1683
1124	sub ext_reply($$$%) {	1684	sub ext_reply($$@) {
1125	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1126		1686
1127	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1128
1129	$self->send ("ext " . cf::to_json \%msg);
1130	}	1688	}
1131		1689
1132	package cf;	1690	=item $player->ext_msg ($type, @msg)
		1691
		1692	Sends an ext event to the client.
		1693
		1694	=cut
		1695
		1696	sub ext_msg($$@) {
		1697	my ($self, $type, @msg) = @_;
		1698
		1699	$self->ns->ext_msg ($type, @msg);
		1700	}
		1701
		1702	=head3 cf::region
		1703
		1704	=over 4
		1705
		1706	=cut
		1707
		1708	package cf::region;
		1709
		1710	=item cf::region::find_by_path $path
		1711
		1712	Tries to decuce the likely region for a map knowing only its path.
		1713
		1714	=cut
		1715
		1716	sub find_by_path($) {
		1717	my ($path) = @_;
		1718
		1719	my ($match, $specificity);
		1720
		1721	for my $region (list) {
		1722	if ($region->{match} && $path =~ $region->{match}) {
		1723	($match, $specificity) = ($region, $region->specificity)
		1724	if $region->specificity > $specificity;
		1725	}
		1726	}
		1727
		1728	$match
		1729	}
1133		1730
1134	=back	1731	=back
1135
1136		1732
1137	=head3 cf::map	1733	=head3 cf::map
1138		1734
1139	=over 4	1735	=over 4
1140		1736
…		…
1152	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1153	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1154		1750
1155	sub generate_random_map {	1751	sub generate_random_map {
1156	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
1157	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1158	$self->_create_random_map (	1757	$self->_create_random_map (
1159	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1160	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1161	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1195	my ($self, $merge) = @_;	1794	my ($self, $merge) = @_;
1196		1795
1197	# we have to keep some variables in memory intact	1796	# we have to keep some variables in memory intact
1198	local $self->{path};	1797	local $self->{path};
1199	local $self->{load_path};	1798	local $self->{load_path};
1200	local $self->{deny_save};
1201	local $self->{deny_reset};
1202		1799
1203	$self->SUPER::thawer_merge ($merge);	1800	$self->SUPER::thawer_merge ($merge);
1204	}	1801	}
1205		1802
1206	sub normalise {	1803	sub normalise {
…		…
1253	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1254	return $self;	1851	return $self;
1255	}	1852	}
1256	}	1853	}
1257		1854
1258	Carp::carp "unable to resolve path '$path' (base '$base').";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1259	()	1856	()
1260	}	1857	}
1261		1858
1262	sub init {	1859	sub init {
1263	my ($self) = @_;	1860	my ($self) = @_;
…		…
1278		1875
1279	# the original (read-only) location	1876	# the original (read-only) location
1280	sub load_path {	1877	sub load_path {
1281	my ($self) = @_;	1878	my ($self) = @_;
1282		1879
1283	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1880	"$MAPDIR/$self->{path}.map"
1284	}	1881	}
1285		1882
1286	# the temporary/swap location	1883	# the temporary/swap location
1287	sub save_path {	1884	sub save_path {
1288	my ($self) = @_;	1885	my ($self) = @_;
1289		1886
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1888	"$TMPDIR/$path.map"
1292	}	1889	}
1293		1890
1294	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1295	sub uniq_path {	1892	sub uniq_path {
1296	my ($self) = @_;	1893	my ($self) = @_;
1297		1894
1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1299	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1896	"$UNIQUEDIR/$path"
1300	}	1897	}
1301		1898
1302	# and all this just because we cannot iterate over	1899	sub decay_objects {
1303	# all maps in C++...
1304	sub change_all_map_light {
1305	my ($change) = @_;	1900	my ($self) = @_;
1306		1901
1307	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1308	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1309	}	1905	}
1310		1906
1311	sub unlink_save {	1907	sub unlink_save {
1312	my ($self) = @_;	1908	my ($self) = @_;
1313		1909
…		…
1318		1914
1319	sub load_header_from($) {	1915	sub load_header_from($) {
1320	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1321		1917
1322	utf8::encode $path;	1918	utf8::encode $path;
1323	#aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1324	# or return;
1325
1326	$self->_load_header ($path)
1327	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;
1328		1927
1329	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1330		1929
1331	1	1930	1
1332	}	1931	}
…		…
1371	$self->load_header_orig	1970	$self->load_header_orig
1372	or return;	1971	or return;
1373	$self->prepare_orig;	1972	$self->prepare_orig;
1374	}	1973	}
1375		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
1376	1	1981	1
1377	}	1982	}
1378		1983
1379	sub find;	1984	sub find;
1380	sub find {	1985	sub find {
1381	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1382		1987
1383	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1384		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1385	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1386		1992
1387	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1388	my $guard = cf::lock_acquire "map_find:$path";
1389	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1390	or return;	1995	or return;
1391		1996
1392	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1393		1998
1394	$map->load_header	1999	$map->load_header
1395	or return;	2000	or return;
1396		2001
1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1398	# doing this can freeze the server in a sync job, obviously	2003	# doing this can freeze the server in a sync job, obviously
1399	#$cf::WAIT_FOR_TICK->wait;	2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1400	$map->reset;	2007	$map->reset;
1401	undef $guard;
1402	return find $path;	2008	return find $path;
1403	}	2009	}
1404		2010
1405	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1406	}	2012	}
…		…
1413	my ($self) = @_;	2019	my ($self) = @_;
1414		2020
1415	local $self->{deny_reset} = 1; # loading can take a long time	2021	local $self->{deny_reset} = 1; # loading can take a long time
1416		2022
1417	my $path = $self->{path};	2023	my $path = $self->{path};
		2024
		2025	{
1418	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1419		2027
		2028	return unless $self->valid;
1420	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1421		2030
1422	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1423		2032
1424	$self->alloc;	2033	$self->alloc;
1425		2034
1426	$self->pre_load;	2035	$self->pre_load;
		2036	cf::cede_to_tick;
1427		2037
1428	$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)
1429	or return;	2041	or return;
1430		2042
1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1432	if delete $self->{load_original};	2044	if delete $self->{load_original};
1433		2045
1434	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1435	utf8::encode $uniq;	2047	utf8::encode $uniq;
1436	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1437	$self->clear_unique_items;	2050	$self->clear_unique_items;
1438	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1439	}	2054	}
1440	}	2055	}
1441		2056
1442	Coro::cede;	2057	$f->resolve_delayed_derefs;
1443		2058
		2059	cf::cede_to_tick;
1444	# now do the right thing for maps	2060	# now do the right thing for maps
1445	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1446
1447	unless ($self->{deny_activate}) {
1448	$self->decay_objects;
1449	$self->fix_auto_apply;
1450	$self->update_buttons;
1451	Coro::cede;
1452	$self->set_darkness_map;
1453	$self->difficulty ($self->estimate_difficulty)	2062	$self->difficulty ($self->estimate_difficulty)
1454	unless $self->difficulty;	2063	unless $self->difficulty;
1455	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;
1456	$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);
1457	}	2078	}
1458		2079
1459	$self->post_load;	2080	$self->post_load;
1460
1461	$self->in_memory (cf::MAP_IN_MEMORY);
1462	}	2081	}
1463		2082
1464	sub customise_for {	2083	sub customise_for {
1465	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1466		2085
1467	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1468	if $self->per_player;	2087	if $self->per_player;
1469		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1470	$self	2092	$self
1471	}	2093	}
1472		2094
1473	# 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
1474	sub load_diag {	2096	sub load_neighbours {
1475	my ($map) = @_;	2097	my ($map) = @_;
1476		2098
1477	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1478		2100
1479	for (0 .. 3) {	2101	for (0 .. 3) {
1480	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1481	or next;	2103	or next;
1482	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1483	or next;	2105	or next;
1484	$neigh->load;	2106	$neigh->load;
1485		2107
		2108	push @neigh,
1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1488	}	2111	}
1489		2112
1490	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1491	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1492	or next;	2116	or next;
1493	$neigh->load;	2117	$neigh->load;
1494	}	2118	}
1495	}	2119	}
1496		2120
…		…
1501	}	2125	}
1502		2126
1503	sub do_load_sync {	2127	sub do_load_sync {
1504	my ($map) = @_;	2128	my ($map) = @_;
1505		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1506	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1507	}	2134	}
1508		2135
1509	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1510	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1511		2138
1512	sub find_async {	2139	sub find_async {
1513	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1514		2141
1515	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1516		2143
1517	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1519	}	2146	}
1520		2147
1521	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1522	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1523	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1524	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1525	my $map = find $path	2155	if (my $map = find $k) {
1526	or next;
1527	$map->load;	2156	$map->load if $v;
		2157	}
1528		2158
1529	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1530	}	2160	}
1531	}	2161	}
1532	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1533	};	2163	};
1534	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1537	}	2167	}
1538		2168
1539	sub save {	2169	sub save {
1540	my ($self) = @_;	2170	my ($self) = @_;
1541		2171
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2173
1544	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1545		2175
1546	return unless $self->dirty;	2176	return unless $self->dirty;
1547		2177
…		…
1553	return if $self->{deny_save};	2183	return if $self->{deny_save};
1554		2184
1555	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1556		2186
1557	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1558	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1559	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1560		2193
1561	if ($uniq) {	2194	if ($uniq) {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1564	} else {	2197	} else {
…		…
1570	my ($self) = @_;	2203	my ($self) = @_;
1571		2204
1572	# save first because save cedes	2205	# save first because save cedes
1573	$self->save;	2206	$self->save;
1574		2207
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2209
1577	return if $self->players;	2210	return if $self->players;
1578	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1579	return if $self->{deny_save};	2212	return if $self->{deny_save};
1580		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1581	$self->clear;	2218	$self->clear;
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	}	2219	}
1584		2220
1585	sub reset_at {	2221	sub reset_at {
1586	my ($self) = @_;	2222	my ($self) = @_;
1587		2223
1588	# TODO: safety, remove and allow resettable per-player maps	2224	# TODO: safety, remove and allow resettable per-player maps
1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1590	return 1e99 if $self->{deny_reset};	2225	return 1e99 if $self->{deny_reset};
1591		2226
1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593	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;
1594		2229
…		…
1605	my ($self) = @_;	2240	my ($self) = @_;
1606		2241
1607	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2243
1609	return if $self->players;	2244	return if $self->players;
1610	return if $self->isa ("ext::map_per_player");#d#
1611		2245
1612	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
1613		2247
1614	$self->in_memory (cf::MAP_SWAPPED);	2248	$self->in_memory (cf::MAP_SWAPPED);
1615		2249
1616	# need to save uniques path	2250	# need to save uniques path
1617	unless ($self->{deny_save}) {	2251	unless ($self->{deny_save}) {
…		…
1621	if $uniq;	2255	if $uniq;
1622	}	2256	}
1623		2257
1624	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1625		2259
		2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1626	$self->clear;	2262	$self->clear;
1627
1628	$_->clear_links_to ($self) for values %cf::MAP;
1629		2263
1630	$self->unlink_save;	2264	$self->unlink_save;
1631	$self->destroy;	2265	$self->destroy;
1632	}	2266	}
1633		2267
1634	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1635		2269
1636	sub nuke {	2270	sub nuke {
1637	my ($self) = @_;	2271	my ($self) = @_;
1638		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
1639	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1640		2277
1641	$self->unlink_save;	2278	$self->unlink_save;
1642		2279
1643	bless $self, "cf::map";	2280	bless $self, "cf::map";
1644	delete $self->{deny_reset};	2281	delete $self->{deny_reset};
1645	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1646	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1647	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648		2285
1649	$cf::MAP{$self->path} = $self;	2286	$cf::MAP{$self->path} = $self;
		2287	}
1650		2288
1651	$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	]
1652	}	2326	}
1653		2327
1654	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1655		2329
1656	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1657	instantiated unique items. May block.	2331	instantiated unique items. May block.
1658		2332
1659	=cut	2333	=cut
1660		2334
1661	sub unique_maps() {	2335	sub unique_maps() {
1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2336	[
1663	or return;	2337	map {
1664
1665	my @paths;
1666
1667	for (@$files) {
1668	utf8::decode $_;	2338	utf8::decode $_;
1669	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1670	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1671		2341	? ()
1672	push @paths, cf::map::normalise $_;	2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
1673	}	2344	]
1674
1675	\@paths
1676	}	2345	}
1677		2346
1678	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	}
1679		2378
1680	=back	2379	=back
1681		2380
1682	=head3 cf::object	2381	=head3 cf::object
1683		2382
…		…
1687		2386
1688	=over 4	2387	=over 4
1689		2388
1690	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1691		2390
1692	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.
1693		2393
1694	=cut	2394	=cut
1695		2395
1696	sub inv_recursive_;	2396	sub inv_recursive_;
1697	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1700		2400
1701	sub inv_recursive {	2401	sub inv_recursive {
1702	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1703	}	2403	}
1704		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
1705	package cf;	2433	package cf;
1706		2434
1707	=back	2435	=back
1708		2436
1709	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1715	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>
1716	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
1717	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1718		2446
1719	=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	};
1720		2462
1721	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1722	# with dialog boxes.	2464	# with dialog boxes.
1723	#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
1724	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1726		2468
1727	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1728		2470
1729	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1730	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1731	} 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 {
1732	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1733	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1734	}	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 (@_);
1735	}	2496	}
1736		2497
1737	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1738		2499
1739	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1752		2513
1753	=item $player_object->enter_link	2514	=item $player_object->enter_link
1754		2515
1755	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}>).
1756		2517
1757	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.
1758	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.
1759		2522
1760	Will never block.	2523	Will never block.
1761		2524
1762	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1763		2526
…		…
1786	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1787		2550
1788	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1789		2552
1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1791	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1792		2555
1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1794	}	2557	}
1795		2558
1796	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1797	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1798		2563
1799	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1800		2565
1801	unless ($map) {	2566	unless ($map) {
1802	# restore original map position	2567	# restore original map position
…		…
1813	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1814	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1815		2580
1816	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1817	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1818	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1819		2584
1820	$map->load;	2585	$map->load;
1821	$map->load_diag;	2586	$map->load_neighbours;
1822		2587
1823	return unless $self->contr->active;	2588	return unless $self->contr->active;
1824	$self->activate_recursive;
1825		2589
1826	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1827	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1828	}
1829		2592
1830	cf::player->attach (	2593	# only activate afterwards, to support waiting in hooks
1831	on_logout => sub {	2594	$self->activate_recursive;
1832	my ($pl) = @_;	2595	}
1833		2596
1834	# abort map switching before logout	2597	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1835	if ($pl->ob->{_link_pos}) {
1836	cf::sync_job {
1837	$pl->ob->leave_link
1838	};
1839	}
1840	},
1841	on_login => sub {
1842	my ($pl) = @_;
1843		2598
1844	# try to abort aborted map switching on player login :)	2599	Moves the player to the given map-path and coordinates by first freezing
1845	# should happen only on crashes	2600	her, loading and preparing them map, calling the provided $check callback
1846	if ($pl->ob->{_link_pos}) {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1847	$pl->ob->enter_link;	2602	the new (success) or old (failed) map position. In either case, $done will
1848	(async {	2603	be called at the end of this process.
1849	$pl->ob->reply (undef,
1850	"There was an internal problem at your last logout, "
1851	. "the server will try to bring you to your intended destination in a second.",
1852	cf::NDI_RED);
1853	# we need this sleep as the login has a concurrent enter_exit running
1854	# and this sleep increases chances of the player not ending up in scorn
1855	Coro::Timer::sleep 1;
1856	$pl->ob->leave_link;
1857	})->prio (2);
1858	}
1859	},
1860	);
1861		2604
1862	=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 >>.
1863		2607
1864	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1865		2611
1866	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1867	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;
1868		2617
1869	$self->enter_link;	2618	$self->enter_link;
1870		2619
1871	(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
1872	my $map = eval {	2642	my $map = eval {
1873	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1874	$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
1875	$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 $@;
1876	} or	2658	}
1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1878		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1879	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1880	})->prio (1);	2666	})->prio (1);
1881	}	2667	}
1882		2668
1883	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1884		2670
…		…
1904	}	2690	}
1905		2691
1906	sub prepare_random_map {	2692	sub prepare_random_map {
1907	my ($exit) = @_;	2693	my ($exit) = @_;
1908		2694
1909	my $guard = cf::lock_acquire "exit_prepare:$exit";
1910
1911	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
1912	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
1913	# that depends on the exit object	2697	# that depends on the exit object
1914		2698
1915	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
1917	if ($exit->map) {	2701	if ($exit->map) {
1918	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
1919	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
1920	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
1921	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
1922	}	2708	}
1923		2709
1924	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
1925		2711
1926	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1927	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
1929		2715
1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1931	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
1932	undef $fh;	2718	undef $fh;
1933	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
1934		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
1935	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
1936	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
1937	}	2727	}
1938	}	2728	}
1939		2729
1940	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
1941	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
1942		2732
1943	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
1944		2734
1945	if ($exit->slaying eq "/!") {
1946	#TODO: this should de-fi-ni-te-ly not be a sync-job
1947	cf::sync_job { prepare_random_map $exit };
1948	}
1949
1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1951	my $hp = $exit->stats->hp;
1952	my $sp = $exit->stats->sp;
1953
1954	$self->enter_link;	2735	$self->enter_link;
1955		2736
1956	(async {	2737	(async {
1957	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
1958	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
1959	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
1960		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
1961	1;	2761	1
1962	}) {	2762	}) {
1963	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
1964	. "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. "
1965	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
1966	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
1967		2767
1968	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
1969	$self->leave_link;	2769	$self->leave_link;
1970	}	2770	}
1971	})->prio (1);	2771	})->prio (1);
…		…
1987		2787
1988	utf8::encode $text;	2788	utf8::encode $text;
1989	$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);
1990	}	2790	}
1991		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
		2979	=item $client->ext_msg ($type, @msg)
		2980
		2981	Sends an ext event to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_msg($$@) {
		2986	my ($self, $type, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
		2991	push @msg, msgtype => "event_$type";
		2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
		3012	}
1992		3013
1993	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
1994		3015
1995	Queues a query to the client, calling the given callback with	3016	Queues a query to the client, calling the given callback with
1996	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>,
1997	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>.
1998		3019
1999	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
2000	reliable at some point in the future.	3021	become reliable at some point in the future.
2001		3022
2002	=cut	3023	=cut
2003		3024
2004	sub cf::client::query {	3025	sub cf::client::query {
2005	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
2013	utf8::encode $text;	3034	utf8::encode $text;
2014	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2015		3036
2016	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
2017	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
2018	}	3041	}
2019		3042
2020	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	},
2021	on_reply => sub {	3049	on_reply => sub {
2022	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
2023		3051
2024	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
2025	# get handled first	3053	# get handled first
…		…
2037	} else {	3065	} else {
2038	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2039	}	3067	}
2040	}	3068	}
2041	},	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	},
2042	);	3096	);
2043		3097
2044	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
2045		3099
2046	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
2087	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
2088	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
2089		3143
2090	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
2091		3145
2092	$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	));
2093		3151
2094	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
2095		3153
2096	=pod	3154	=pod
2097		3155
2098	The following functions and methods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
2099		3157
2100	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
2101	cf::object::player player	3163	cf::object::player
2102	cf::player peaceful	3164	player
2103	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2104		3171
2105	=cut	3172	=cut
2106		3173
2107	for (	3174	for (
2108	["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)],
2109	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2110	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2111	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2112	) {	3181	) {
2113	no strict 'refs';	3182	no strict 'refs';
2114	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2115	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2132	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2133		3202
2134	my $qcode = $code;	3203	my $qcode = $code;
2135	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2136	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2137		3208
2138	local $_;	3209	local $_;
2139	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2140		3211
2141	my $eval =	3212	my $eval =
…		…
2184	=back	3255	=back
2185		3256
2186	=cut	3257	=cut
2187		3258
2188	#############################################################################	3259	#############################################################################
2189
2190	=head2 EXTENSION DATABASE SUPPORT
2191
2192	Crossfire maintains a very simple database for extension use. It can
2193	currently store anything that can be serialised using Storable, which
2194	excludes objects.
2195
2196	The parameter C<$family> should best start with the name of the extension
2197	using it, it should be unique.
2198
2199	=over 4
2200
2201	=item $value = cf::db_get $family => $key
2202
2203	Returns a single value from the database.
2204
2205	=item cf::db_put $family => $key => $value
2206
2207	Stores the given C<$value> in the family.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	sub db_init {
2214	unless ($DB) {
2215	$DB = BDB::db_create $DB_ENV;
2216
2217	cf::sync_job {
2218	eval {
2219	$DB->set_flags (BDB::CHKSUM);
2220
2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2223	cf::cleanup "db_open(db): $!" if $!;
2224	};
2225	cf::cleanup "db_open(db): $@" if $@;
2226	};
2227
2228	my $path = cf::localdir . "/database.pst";
2229	if (stat $path) {
2230	cf::sync_job {
2231	my $pst = Storable::retrieve $path;
2232
2233	cf::db_put (board => data => $pst->{board});
2234	cf::db_put (guildrules => data => $pst->{guildrules});
2235	cf::db_put (rent => balance => $pst->{rent}{balance});
2236	BDB::db_env_txn_checkpoint $DB_ENV;
2237
2238	unlink $path;
2239	};
2240	}
2241	}
2242	}
2243
2244	sub db_get($$) {
2245	my $key = "$_[0]/$_[1]";
2246
2247	cf::sync_job {
2248	BDB::db_get $DB, undef, $key, my $data;
2249
2250	$! ? ()
2251	: Compress::LZF::sthaw $data
2252	}
2253	}
2254
2255	sub db_put($$$) {
2256	BDB::dbreq_pri 4;
2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2258	}
2259
2260	#############################################################################
2261	# the server's init and main functions	3260	# the server's init and main functions
2262		3261
2263	sub load_facedata {	3262	sub load_facedata($) {
2264	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;
2265		3270
2266	warn "loading facedata from $path\n";	3271	warn "loading facedata from $path\n";
2267		3272
2268	my $faces;	3273	my $facedata;
2269	0 < aio_load $path, $faces	3274	0 < aio_load $path, $facedata
2270	or die "$path: $!";	3275	or die "$path: $!";
2271		3276
2272	Coro::cede;
2273	$faces = Storable::thaw $faces;	3277	$facedata = Coro::Storable::thaw $facedata;
2274	Coro::cede;
2275		3278
2276	my $meta = delete $faces->{""};
2277	$meta->{version} == 1	3279	$facedata->{version} == 2
2278	or cf::cleanup "$path: version mismatch, cannot proceed.";	3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
2279		3281
		3282	# patch in the exptable
		3283	$facedata->{resource}{"res/exp_table"} = {
		3284	type => FT_RSRC,
		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3286	};
		3287	cf::cede_to_tick;
		3288
		3289	{
		3290	my $faces = $facedata->{faceinfo};
		3291
2280	while (my ($face, $info) = each %$faces) {	3292	while (my ($face, $info) = each %$faces) {
2281	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2282	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3294
		3295	cf::face::set_visibility $idx, $info->{visibility};
		3296	cf::face::set_magicmap $idx, $info->{magicmap};
2283	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2284	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2285	Coro::cede;
2286	}
2287		3299
		3300	cf::cede_to_tick;
		3301	}
		3302
2288	while (my ($face, $info) = each %$faces) {	3303	while (my ($face, $info) = each %$faces) {
2289	next unless $info->{smooth};	3304	next unless $info->{smooth};
		3305
2290	my $idx = cf::face::find $face	3306	my $idx = cf::face::find $face
2291	or next;	3307	or next;
		3308
2292	if (my $smooth = cf::face::find $info->{smooth}) {	3309	if (my $smooth = cf::face::find $info->{smooth}) {
2293	cf::face::set_smooth $idx, $smooth;	3310	cf::face::set_smooth $idx, $smooth;
		3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2294	} else {	3312	} else {
2295	warn "smooth face '$info->{smooth}' not found for face '$face'";	3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
2296	}	3314	}
2297	Coro::cede;	3315
		3316	cf::cede_to_tick;
		3317	}
		3318	}
		3319
2298	}	3320	{
		3321	my $anims = $facedata->{animinfo};
		3322
		3323	while (my ($anim, $info) = each %$anims) {
		3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3325	cf::cede_to_tick;
		3326	}
		3327
		3328	cf::anim::invalidate_all; # d'oh
		3329	}
		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
2299		3365
2300	1	3366	1
2301	}	3367	}
2302		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
2303	sub reload_resources {	3436	sub reload_resources {
2304	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3437	warn "reloading resource files...\n";
2305	or die "unable to load regions file\n";#d#	3438
2306	load_facedata	3439	reload_facedata;
2307	or die "unable to load facedata\n";#d#	3440	reload_archetypes;
2308	}
2309
2310	sub init {
2311	reload_resources;	3441	reload_regions;
2312	}	3442	reload_treasures;
2313		3443
2314	sub cfg_load {	3444	warn "finished reloading resource files\n";
		3445	}
		3446
		3447	sub reload_config {
		3448	warn "reloading config file...\n";
		3449
2315	open my $fh, "<:utf8", cf::confdir . "/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2316	or return;	3451	or return;
2317		3452
2318	local $/;	3453	local $/;
2319	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2320		3455
2321	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2322		3457
2323	$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};
2324	$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};
…		…
2328	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2329	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2330	};	3465	};
2331	warn $@ if $@;	3466	warn $@ if $@;
2332	}	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;
2333	}	3498	}
2334		3499
2335	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
2336	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2337	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2338	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#
2339	(async {	3518	(async {
2340	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
2341	})->prio (Coro::PRIO_MAX);	3521	})->prio (Coro::PRIO_MAX);
2342	};	3522	};
2343		3523
2344	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
		3525
		3526	cf::sync_job {
		3527	cf::load_settings;
		3528	cf::load_materials;
		3529
		3530	reload_resources;
		3531	reload_config;
2345	db_init;	3532	db_init;
		3533
		3534	cf::init_uuid;
		3535	cf::init_signals;
		3536	cf::init_commands;
		3537	cf::init_skills;
		3538
		3539	cf::init_beforeplay;
		3540
		3541	atomic;
		3542
2346	load_extensions;	3543	load_extensions;
2347		3544
2348	$TICK_WATCHER->start;	3545	utime time, time, $RUNTIMEFILE;
2349	Event::loop;	3546
		3547	# no (long-running) fork's whatsoever before this point(!)
		3548	use POSIX ();
		3549	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3550
		3551	(pop @POST_INIT)->(0) while @POST_INIT;
		3552	};
		3553
		3554	main_loop;
2350	}	3555	}
2351		3556
2352	#############################################################################	3557	#############################################################################
2353	# initialisation and cleanup	3558	# initialisation and cleanup
2354		3559
2355	# install some emergency cleanup handlers	3560	# install some emergency cleanup handlers
2356	BEGIN {	3561	BEGIN {
		3562	our %SIGWATCHER = ();
2357	for my $signal (qw(INT HUP TERM)) {	3563	for my $signal (qw(INT HUP TERM)) {
2358	Event->signal (	3564	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2359	reentrant => 0,
2360	data => WF_AUTOCANCEL,
2361	signal => $signal,
2362	prio => 0,
2363	cb => sub {
2364	cf::cleanup "SIG$signal";	3565	cf::cleanup "SIG$signal";
2365	},
2366	);	3566	};
		3567	}
		3568	}
		3569
		3570	sub write_runtime_sync {
		3571	# first touch the runtime file to show we are still running:
		3572	# the fsync below can take a very very long time.
		3573
		3574	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3575
		3576	my $guard = cf::lock_acquire "write_runtime";
		3577
		3578	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3579	or return;
		3580
		3581	my $value = $cf::RUNTIME + 90 + 10;
		3582	# 10 is the runtime save interval, for a monotonic clock
		3583	# 60 allows for the watchdog to kill the server.
		3584
		3585	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3586	and return;
		3587
		3588	# always fsync - this file is important
		3589	aio_fsync $fh
		3590	and return;
		3591
		3592	# touch it again to show we are up-to-date
		3593	aio_utime $fh, undef, undef;
		3594
		3595	close $fh
		3596	or return;
		3597
		3598	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3599	and return;
		3600
		3601	warn "runtime file written.\n";
		3602
2367	}	3603	1
		3604	}
		3605
		3606	our $uuid_lock;
		3607	our $uuid_skip;
		3608
		3609	sub write_uuid_sync($) {
		3610	$uuid_skip ||= $_[0];
		3611
		3612	return if $uuid_lock;
		3613	local $uuid_lock = 1;
		3614
		3615	my $uuid = "$LOCALDIR/uuid";
		3616
		3617	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3618	or return;
		3619
		3620	my $value = uuid_seq uuid_cur;
		3621
		3622	unless ($value) {
		3623	warn "cowardly refusing to write zero uuid value!\n";
		3624	return;
		3625	}
		3626
		3627	my $value = uuid_str $value + $uuid_skip;
		3628	$uuid_skip = 0;
		3629
		3630	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3631	and return;
		3632
		3633	# always fsync - this file is important
		3634	aio_fsync $fh
		3635	and return;
		3636
		3637	close $fh
		3638	or return;
		3639
		3640	aio_rename "$uuid~", $uuid
		3641	and return;
		3642
		3643	warn "uuid file written ($value).\n";
		3644
		3645	1
		3646
		3647	}
		3648
		3649	sub write_uuid($$) {
		3650	my ($skip, $sync) = @_;
		3651
		3652	$sync ? write_uuid_sync $skip
		3653	: async { write_uuid_sync $skip };
2368	}	3654	}
2369		3655
2370	sub emergency_save() {	3656	sub emergency_save() {
2371	my $freeze_guard = cf::freeze_mainloop;	3657	my $freeze_guard = cf::freeze_mainloop;
2372		3658
2373	warn "enter emergency perl save\n";	3659	warn "emergency_perl_save: enter\n";
2374		3660
2375	cf::sync_job {	3661	cf::sync_job {
		3662	# this is a trade-off: we want to be very quick here, so
		3663	# save all maps without fsync, and later call a global sync
		3664	# (which in turn might be very very slow)
		3665	local $USE_FSYNC = 0;
		3666
2376	# use a peculiar iteration method to avoid tripping on perl	3667	# use a peculiar iteration method to avoid tripping on perl
2377	# refcount bugs in for. also avoids problems with players	3668	# refcount bugs in for. also avoids problems with players
2378	# and maps saved/destroyed asynchronously.	3669	# and maps saved/destroyed asynchronously.
2379	warn "begin emergency player save\n";	3670	warn "emergency_perl_save: begin player save\n";
2380	for my $login (keys %cf::PLAYER) {	3671	for my $login (keys %cf::PLAYER) {
2381	my $pl = $cf::PLAYER{$login} or next;	3672	my $pl = $cf::PLAYER{$login} or next;
2382	$pl->valid or next;	3673	$pl->valid or next;
		3674	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2383	$pl->save;	3675	$pl->save;
2384	}	3676	}
2385	warn "end emergency player save\n";	3677	warn "emergency_perl_save: end player save\n";
2386		3678
2387	warn "begin emergency map save\n";	3679	warn "emergency_perl_save: begin map save\n";
2388	for my $path (keys %cf::MAP) {	3680	for my $path (keys %cf::MAP) {
2389	my $map = $cf::MAP{$path} or next;	3681	my $map = $cf::MAP{$path} or next;
2390	$map->valid or next;	3682	$map->valid or next;
2391	$map->save;	3683	$map->save;
2392	}	3684	}
2393	warn "end emergency map save\n";	3685	warn "emergency_perl_save: end map save\n";
2394		3686
2395	warn "begin emergency database checkpoint\n";	3687	warn "emergency_perl_save: begin database checkpoint\n";
2396	BDB::db_env_txn_checkpoint $DB_ENV;	3688	BDB::db_env_txn_checkpoint $DB_ENV;
2397	warn "end emergency database checkpoint\n";	3689	warn "emergency_perl_save: end database checkpoint\n";
		3690
		3691	warn "emergency_perl_save: begin write uuid\n";
		3692	write_uuid_sync 1;
		3693	warn "emergency_perl_save: end write uuid\n";
2398	};	3694	};
2399		3695
		3696	warn "emergency_perl_save: starting sync()\n";
		3697	IO::AIO::aio_sync sub {
		3698	warn "emergency_perl_save: finished sync()\n";
		3699	};
		3700
2400	warn "leave emergency perl save\n";	3701	warn "emergency_perl_save: leave\n";
2401	}	3702	}
2402		3703
2403	sub post_cleanup {	3704	sub post_cleanup {
2404	my ($make_core) = @_;	3705	my ($make_core) = @_;
2405		3706
2406	warn Carp::longmess "post_cleanup backtrace"	3707	warn Carp::longmess "post_cleanup backtrace"
2407	if $make_core;	3708	if $make_core;
2408	}
2409		3709
		3710	my $fh = pidfile;
		3711	unlink $PIDFILE if <$fh> == $$;
		3712	}
		3713
		3714	# a safer delete_package, copied from Symbol
		3715	sub clear_package($) {
		3716	my $pkg = shift;
		3717
		3718	# expand to full symbol table name if needed
		3719	unless ($pkg =~ /^main::.*::$/) {
		3720	$pkg = "main$pkg" if $pkg =~ /^::/;
		3721	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3722	$pkg .= '::' unless $pkg =~ /::$/;
		3723	}
		3724
		3725	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3726	my $stem_symtab = *{$stem}{HASH};
		3727
		3728	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3729	or return;
		3730
		3731	# clear all symbols
		3732	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3733	for my $name (keys %$leaf_symtab) {
		3734	_gv_clear *{"$pkg$name"};
		3735	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3736	}
		3737	warn "cleared package $pkg\n";#d#
		3738	}
		3739
2410	sub reload() {	3740	sub do_reload_perl() {
2411	# can/must only be called in main	3741	# can/must only be called in main
2412	if ($Coro::current != $Coro::main) {	3742	if ($Coro::current != $Coro::main) {
2413	warn "can only reload from main coroutine";	3743	warn "can only reload from main coroutine";
2414	return;	3744	return;
2415	}	3745	}
2416		3746
		3747	return if $RELOAD++;
		3748
		3749	my $t1 = EV::time;
		3750
		3751	while ($RELOAD) {
2417	warn "reloading...";	3752	warn "reloading...";
2418		3753
2419	warn "entering sync_job";	3754	warn "entering sync_job";
2420		3755
2421	cf::sync_job {	3756	cf::sync_job {
2422	cf::write_runtime; # external watchdog should not bark	3757	cf::write_runtime_sync; # external watchdog should not bark
2423	cf::emergency_save;	3758	cf::emergency_save;
2424	cf::write_runtime; # external watchdog should not bark	3759	cf::write_runtime_sync; # external watchdog should not bark
2425		3760
2426	warn "syncing database to disk";	3761	warn "syncing database to disk";
2427	BDB::db_env_txn_checkpoint $DB_ENV;	3762	BDB::db_env_txn_checkpoint $DB_ENV;
2428		3763
2429	# if anything goes wrong in here, we should simply crash as we already saved	3764	# if anything goes wrong in here, we should simply crash as we already saved
2430		3765
2431	warn "cancelling all WF_AUTOCANCEL watchers";
2432	for (Event::all_watchers) {
2433	$_->cancel if $_->data & WF_AUTOCANCEL;
2434	}
2435
2436	warn "flushing outstanding aio requests";	3766	warn "flushing outstanding aio requests";
2437	for (;;) {
2438	BDB::flush;
2439	IO::AIO::flush;
2440	Coro::cede;
2441	last unless IO::AIO::nreqs || BDB::nreqs;	3767	while (IO::AIO::nreqs || BDB::nreqs) {
2442	warn "iterate...";	3768	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2443	}
2444
2445	++$RELOAD;
2446
2447	warn "cancelling all extension coros";
2448	$_->cancel for values %EXT_CORO;
2449	%EXT_CORO = ();
2450
2451	warn "removing commands";
2452	%COMMAND = ();
2453
2454	warn "removing ext commands";
2455	%EXTCMD = ();
2456
2457	warn "unloading/nuking all extensions";
2458	for my $pkg (@EXTS) {
2459	warn "... unloading $pkg";
2460
2461	if (my $cb = $pkg->can ("unload")) {
2462	eval {
2463	$cb->($pkg);
2464	1
2465	} or warn "$pkg unloaded, but with errors: $@";
2466	}	3769	}
2467		3770
2468	warn "... nuking $pkg";	3771	warn "cancelling all extension coros";
2469	Symbol::delete_package $pkg;	3772	$_->cancel for values %EXT_CORO;
2470	}	3773	%EXT_CORO = ();
2471		3774
2472	warn "unloading all perl modules loaded from $LIBDIR";	3775	warn "removing commands";
2473	while (my ($k, $v) = each %INC) {	3776	%COMMAND = ();
2474	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2475		3777
		3778	warn "removing ext/exti commands";
		3779	%EXTCMD = ();
		3780	%EXTICMD = ();
		3781
		3782	warn "unloading/nuking all extensions";
		3783	for my $pkg (@EXTS) {
2476	warn "... unloading $k";	3784	warn "... unloading $pkg";
2477	delete $INC{$k};
2478		3785
2479	$k =~ s/\.pm$//;
2480	$k =~ s/\//::/g;
2481
2482	if (my $cb = $k->can ("unload_module")) {	3786	if (my $cb = $pkg->can ("unload")) {
		3787	eval {
2483	$cb->();	3788	$cb->($pkg);
		3789	1
		3790	} or warn "$pkg unloaded, but with errors: $@";
		3791	}
		3792
		3793	warn "... clearing $pkg";
		3794	clear_package $pkg;
2484	}	3795	}
2485		3796
2486	Symbol::delete_package $k;	3797	warn "unloading all perl modules loaded from $LIBDIR";
		3798	while (my ($k, $v) = each %INC) {
		3799	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3800
		3801	warn "... unloading $k";
		3802	delete $INC{$k};
		3803
		3804	$k =~ s/\.pm$//;
		3805	$k =~ s/\//::/g;
		3806
		3807	if (my $cb = $k->can ("unload_module")) {
		3808	$cb->();
		3809	}
		3810
		3811	clear_package $k;
2487	}	3812	}
2488		3813
2489	warn "getting rid of safe::, as good as possible";	3814	warn "getting rid of safe::, as good as possible";
2490	Symbol::delete_package "safe::$_"	3815	clear_package "safe::$_"
2491	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3816	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2492		3817
2493	warn "unloading cf.pm \"a bit\"";	3818	warn "unloading cf.pm \"a bit\"";
2494	delete $INC{"cf.pm"};	3819	delete $INC{"cf.pm"};
		3820	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2495		3821
2496	# don't, removes xs symbols, too,	3822	# don't, removes xs symbols, too,
2497	# and global variables created in xs	3823	# and global variables created in xs
2498	#Symbol::delete_package __PACKAGE__;	3824	#clear_package __PACKAGE__;
2499		3825
2500	warn "unload completed, starting to reload now";	3826	warn "unload completed, starting to reload now";
2501		3827
2502	warn "reloading cf.pm";	3828	warn "reloading cf.pm";
2503	require cf;	3829	require cf;
2504	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3830	cf::_connect_to_perl_1;
2505		3831
2506	warn "loading config and database again";	3832	warn "loading config and database again";
2507	cf::cfg_load;	3833	cf::reload_config;
2508		3834
2509	warn "loading extensions";	3835	warn "loading extensions";
2510	cf::load_extensions;	3836	cf::load_extensions;
2511		3837
		3838	if ($REATTACH_ON_RELOAD) {
2512	warn "reattaching attachments to objects/players";	3839	warn "reattaching attachments to objects/players";
2513	_global_reattach; # objects, sockets	3840	_global_reattach; # objects, sockets
2514	warn "reattaching attachments to maps";	3841	warn "reattaching attachments to maps";
2515	reattach $_ for values %MAP;	3842	reattach $_ for values %MAP;
2516	warn "reattaching attachments to players";	3843	warn "reattaching attachments to players";
2517	reattach $_ for values %PLAYER;	3844	reattach $_ for values %PLAYER;
		3845	}
2518		3846
2519	warn "loading reloadable resources";	3847	warn "running post_init jobs";
2520	reload_resources;	3848	(pop @POST_INIT)->(1) while @POST_INIT;
2521		3849
2522	warn "leaving sync_job";	3850	warn "leaving sync_job";
2523		3851
2524	1	3852	1
2525	} or do {	3853	} or do {
2526	warn $@;	3854	warn $@;
2527	warn "error while reloading, exiting.";	3855	cf::cleanup "error while reloading, exiting.";
2528	exit 1;	3856	};
		3857
		3858	warn "reloaded";
		3859	--$RELOAD;
		3860	}
		3861
		3862	$t1 = EV::time - $t1;
		3863	warn "reload completed in ${t1}s\n";
		3864	};
		3865
		3866	our $RELOAD_WATCHER; # used only during reload
		3867
		3868	sub reload_perl() {
		3869	# doing reload synchronously and two reloads happen back-to-back,
		3870	# coro crashes during coro_state_free->destroy here.
		3871
		3872	$RELOAD_WATCHER ||= cf::async {
		3873	Coro::AIO::aio_wait cache_extensions;
		3874
		3875	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3876	do_reload_perl;
		3877	undef $RELOAD_WATCHER;
		3878	};
2529	};	3879	};
2530		3880	}
2531	warn "reloaded";
2532	};
2533
2534	our $RELOAD_WATCHER; # used only during reload
2535		3881
2536	register_command "reload" => sub {	3882	register_command "reload" => sub {
2537	my ($who, $arg) = @_;	3883	my ($who, $arg) = @_;
2538		3884
2539	if ($who->flag (FLAG_WIZ)) {	3885	if ($who->flag (FLAG_WIZ)) {
2540	$who->message ("reloading server.");	3886	$who->message ("reloading server.");
2541		3887	async {
2542	# doing reload synchronously and two reloads happen back-to-back,	3888	$Coro::current->{desc} = "perl_reload";
2543	# coro crashes during coro_state_free->destroy here.
2544
2545	$RELOAD_WATCHER ||= Event->timer (
2546	reentrant => 0,
2547	after => 0,
2548	data => WF_AUTOCANCEL,
2549	cb => sub {
2550	reload;	3889	reload_perl;
2551	undef $RELOAD_WATCHER;
2552	},
2553	);	3890	};
2554	}	3891	}
2555	};	3892	};
2556		3893
2557	unshift @INC, $LIBDIR;	3894	unshift @INC, $LIBDIR;
2558		3895
2559	my $bug_warning = 0;	3896	my $bug_warning = 0;
2560		3897
2561	$TICK_WATCHER = Event->timer (	3898	our @WAIT_FOR_TICK;
2562	reentrant => 0,	3899	our @WAIT_FOR_TICK_BEGIN;
2563	parked => 1,	3900
2564	prio => 0,	3901	sub wait_for_tick {
2565	at => $NEXT_TICK || $TICK,	3902	return if tick_inhibit || $Coro::current == $Coro::main;
2566	data => WF_AUTOCANCEL,	3903
2567	cb => sub {	3904	my $signal = new Coro::Signal;
		3905	push @WAIT_FOR_TICK, $signal;
		3906	$signal->wait;
		3907	}
		3908
		3909	sub wait_for_tick_begin {
		3910	return if tick_inhibit || $Coro::current == $Coro::main;
		3911
		3912	my $signal = new Coro::Signal;
		3913	push @WAIT_FOR_TICK_BEGIN, $signal;
		3914	$signal->wait;
		3915	}
		3916
		3917	sub tick {
2568	if ($Coro::current != $Coro::main) {	3918	if ($Coro::current != $Coro::main) {
2569	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3919	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2570	unless ++$bug_warning > 10;	3920	unless ++$bug_warning > 10;
2571	return;	3921	return;
2572	}	3922	}
2573		3923
2574	$NOW = Event::time;
2575
2576	cf::server_tick; # one server iteration	3924	cf::server_tick; # one server iteration
2577	$RUNTIME += $TICK;
2578	$NEXT_TICK += $TICK;
2579		3925
2580	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2581	$NEXT_RUNTIME_WRITE = $NOW + 10;	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2582	Coro::async_pool {	3928	Coro::async_pool {
		3929	$Coro::current->{desc} = "runtime saver";
2583	write_runtime	3930	write_runtime_sync
2584	or warn "ERROR: unable to write runtime file: $!";	3931	or warn "ERROR: unable to write runtime file: $!";
2585	};
2586	}	3932	};
2587
2588	$WAIT_FOR_TICK->broadcast;
2589	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2590
2591	# my $AFTER = Event::time;
2592	# warn $AFTER - $NOW;#d#
2593
2594	# if we are delayed by four ticks or more, skip them all
2595	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2596
2597	$TICK_WATCHER->at ($NEXT_TICK);
2598	$TICK_WATCHER->start;
2599	},	3933	}
2600	);	3934
		3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3936	$sig->send;
		3937	}
		3938	while (my $sig = shift @WAIT_FOR_TICK) {
		3939	$sig->send;
		3940	}
		3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
2601		3953
2602	{	3954	{
2603	BDB::max_poll_time $TICK * 0.1;	3955	# configure BDB
2604	$BDB_POLL_WATCHER = Event->io (	3956
2605	reentrant => 0,
2606	fd => BDB::poll_fileno,
2607	poll => 'r',
2608	prio => 0,
2609	data => WF_AUTOCANCEL,
2610	cb => \&BDB::poll_cb,
2611	);
2612	BDB::min_parallel 8;	3957	BDB::min_parallel 8;
2613		3958	BDB::max_poll_reqs $TICK * 0.1;
2614	BDB::set_sync_prepare {	3959	$AnyEvent::BDB::WATCHER->priority (1);
2615	my $status;
2616	my $current = $Coro::current;
2617	(
2618	sub {
2619	$status = $!;
2620	$current->ready; undef $current;
2621	},
2622	sub {
2623	Coro::schedule while defined $current;
2624	$! = $status;
2625	},
2626	)
2627	};
2628		3960
2629	unless ($DB_ENV) {	3961	unless ($DB_ENV) {
2630	$DB_ENV = BDB::db_env_create;	3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2631		3968
2632	cf::sync_job {	3969	cf::sync_job {
2633	eval {	3970	eval {
2634	BDB::db_env_open	3971	BDB::db_env_open
2635	$DB_ENV,	3972	$DB_ENV,
2636	$BDB_ENV_DIR,	3973	$BDBDIR,
2637	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2638	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2639	0666;	3976	0666;
2640		3977
2641	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2642
2643	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2644	$DB_ENV->set_lk_detect;
2645	};	3979	};
2646		3980
2647	cf::cleanup "db_env_open(db): $@" if $@;	3981	cf::cleanup "db_env_open(db): $@" if $@;
2648	};	3982	};
2649	}	3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
2650	}	3994	}
2651		3995
2652	{	3996	{
		3997	# configure IO::AIO
		3998
2653	IO::AIO::min_parallel 8;	3999	IO::AIO::min_parallel 8;
2654
2655	undef $Coro::AIO::WATCHER;
2656	IO::AIO::max_poll_time $TICK * 0.1;	4000	IO::AIO::max_poll_time $TICK * 0.1;
2657	$AIO_POLL_WATCHER = Event->io (	4001	undef $AnyEvent::AIO::WATCHER;
2658	reentrant => 0,
2659	data => WF_AUTOCANCEL,
2660	fd => IO::AIO::poll_fileno,
2661	poll => 'r',
2662	prio => 6,
2663	cb => \&IO::AIO::poll_cb,
2664	);
2665	}	4002	}
		4003
		4004	my $_log_backtrace;
		4005
		4006	sub _log_backtrace {
		4007	my ($msg, @addr) = @_;
		4008
		4009	$msg =~ s/\n//;
		4010
		4011	# limit the # of concurrent backtraces
		4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
		4039	};
		4040	} else {
		4041	LOG llevInfo, "[ABT] $msg\n";
		4042	LOG llevInfo, "[ABT] [suppressed]\n";
		4043	}
		4044	}
		4045
		4046	# load additional modules
		4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
2666		4049
2667	END { cf::emergency_save }	4050	END { cf::emergency_save }
2668		4051
2669	1	4052	1
2670		4053

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