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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.458 by root, Sat Dec 13 20:34:37 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.5 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::AnyEvent;
18	use Coro::AIO;	47	use Coro::AIO;
		48	use Coro::BDB 1.6;
		49	use Coro::Storable;
		50	use Coro::Util ();
19		51
		52	use JSON::XS 2.01 ();
20	use BDB ();	53	use BDB ();
21	use Data::Dumper;	54	use Data::Dumper;
22	use Digest::MD5;	55	use Digest::MD5;
23	use Fcntl;	56	use Fcntl;
		57	use YAML ();
24	use IO::AIO 2.32 ();	58	use IO::AIO ();
25	use YAML::Syck ();
26	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
27		62
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
29		75
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	76	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;
34
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		77
37	our %COMMAND = ();	78	our %COMMAND = ();
38	our %COMMAND_TIME = ();	79	our %COMMAND_TIME = ();
39		80
40	our @EXTS = (); # list of extension package names	81	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	82	our %EXTCMD = ();
		83	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	84	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	85	our %EXT_MAP = (); # pluggable maps
44		86
		87	our $RELOAD; # number of reloads so far, non-zero while in reload
45	our @EVENT;	88	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		89
48	our $TICK = MAX_TIME * 1e-6;	90	our $CONFDIR = confdir;
49	our $TICK_WATCHER;	91	our $DATADIR = datadir;
50	our $AIO_POLL_WATCHER;	92	our $LIBDIR = "$DATADIR/ext";
51	our $WRITE_RUNTIME_WATCHER;	93	our $PODDIR = "$DATADIR/pod";
		94	our $MAPDIR = "$DATADIR/" . mapdir;
		95	our $LOCALDIR = localdir;
		96	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		97	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		98	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		99	our $RANDOMDIR = "$LOCALDIR/random";
		100	our $BDBDIR = "$LOCALDIR/db";
		101	our $PIDFILE = "$LOCALDIR/pid";
		102	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		103
		104	our %RESOURCE;
		105
		106	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		107	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	108	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	109	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		110
		111	our $BDB_DEADLOCK_WATCHER;
		112	our $BDB_CHECKPOINT_WATCHER;
56	our $BDB_POLL_WATCHER;	113	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	114	our $DB_ENV;
58		115
59	our %CFG;	116	our %CFG;
60		117
61	our $UPTIME; $UPTIME ||= time;	118	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	119	our $RUNTIME;
		120	our $NOW;
63		121
64	our %PLAYER; # all users	122	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	123	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	124	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		125
73	# used to convert map paths into valid unix filenames by replacing / by ∕	126	# used to convert map paths into valid unix filenames by replacing / by ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	127	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		128
		129	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		130	our $LOADAVG; # same thing, but with alpha-smoothing
		131	our $JITTER; # average jitter
		132	our $TICK_START; # for load detecting purposes
		133
		134	our @POST_INIT;
		135
		136	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
		137
76	binmode STDOUT;	138	binmode STDOUT;
77	binmode STDERR;	139	binmode STDERR;
78		140
79	# read virtual server time, if available	141	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	142	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	143	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	144	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	145	$RUNTIME = <$fh> + 0.;
84	}	146	}
85		147
86	mkdir cf::localdir;	148	mkdir $_
87	mkdir cf::localdir . "/" . cf::playerdir;	149	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
88	mkdir cf::localdir . "/" . cf::tmpdir;
89	mkdir cf::localdir . "/" . cf::uniquedir;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		150
93	our $EMERGENCY_POSITION;	151	our $EMERGENCY_POSITION;
94		152
95	sub cf::map::normalise;	153	sub cf::map::normalise;
96		154
…		…
107	=item $cf::RUNTIME	165	=item $cf::RUNTIME
108		166
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	167	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	168	every server tick.
111		169
112	=item $cf::LIBDIR	170	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		171	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		172	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		173
114	The perl library directory, where extensions and cf-specific modules can	174	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	175	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		176	unique-items directory, player file directory, random maps directory and
		177	database environment.
116		178
117	=item $cf::NOW	179	=item $cf::NOW
118		180
119	The time of the last (current) server tick.	181	The time of the last (current) server tick.
120		182
121	=item $cf::TICK	183	=item $cf::TICK
122		184
123	The interval between server ticks, in seconds.	185	The interval between server ticks, in seconds.
124		186
		187	=item $cf::LOADAVG
		188
		189	The current CPU load on the server (alpha-smoothed), as a value between 0
		190	(none) and 1 (overloaded), indicating how much time is spent on processing
		191	objects per tick. Healthy values are < 0.5.
		192
		193	=item $cf::LOAD
		194
		195	The raw value load value from the last tick.
		196
125	=item %cf::CFG	197	=item %cf::CFG
126		198
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	199	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	200	from wherever your confdir points to.
129		201
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	202	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		203
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	204	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	205	returns directly I<after> the tick processing (and consequently, can only wake one process
134	processing has been done. Call C<< ->wait >> on them to maximise the	206	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
135	window of cpu time available, or simply to synchronise to the server tick.	207
		208	=item @cf::INVOKE_RESULTS
		209
		210	This array contains the results of the last C<invoke ()> call. When
		211	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		212	that call.
136		213
137	=back	214	=back
138		215
139	=cut	216	=cut
140		217
141	BEGIN {	218	BEGIN {
142	*CORE::GLOBAL::warn = sub {	219	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	220	my $msg = join "", @_;
144	utf8::encode $msg;
145		221
146	$msg .= "\n"	222	$msg .= "\n"
147	unless $msg =~ /\n$/;	223	unless $msg =~ /\n$/;
148		224
		225	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		226
149	LOG llevError, $msg;	227	LOG llevError, $msg;
150	};	228	};
151	}	229	}
		230
		231	$Coro::State::DIEHOOK = sub {
		232	return unless $^S eq 0; # "eq", not "=="
		233
		234	if ($Coro::current == $Coro::main) {#d#
		235	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		236	return;#d#
		237	}#d#
		238
		239	# kill coroutine otherwise
		240	warn Carp::longmess $_[0];
		241	Coro::terminate
		242	};
		243
		244	$SIG{__DIE__} = sub { }; #d#?
152		245
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	246	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	247	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	248	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	249	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	250	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		251	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	252	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		253
160	# we bless all objects into (empty) derived classes to force a method lookup	254	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	255	# within the Safe compartment.
162	for my $pkg (qw(	256	for my $pkg (qw(
163	cf::global cf::attachable	257	cf::global cf::attachable
164	cf::object cf::object::player	258	cf::object cf::object::player
165	cf::client cf::player	259	cf::client cf::player
166	cf::arch cf::living	260	cf::arch cf::living
		261	cf::map cf::mapspace
167	cf::map cf::party cf::region	262	cf::party cf::region
168	)) {	263	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	264	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	265	}
172		266
173	$Event::DIED = sub {	267	$EV::DIED = sub {
174	warn "error in event callback: @_";	268	warn "error in event callback: @_";
175	};	269	};
		270
		271	#############################################################################
176		272
177	=head2 UTILITY FUNCTIONS	273	=head2 UTILITY FUNCTIONS
178		274
179	=over 4	275	=over 4
180		276
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	295	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	296	$d
201	} || "[unable to dump $_[0]: '$@']";	297	} || "[unable to dump $_[0]: '$@']";
202	}	298	}
203		299
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	300	=item $ref = cf::decode_json $json
207		301
208	Converts a JSON string into the corresponding perl data structure.	302	Converts a JSON string into the corresponding perl data structure.
209		303
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	304	=item $json = cf::encode_json $ref
218		305
219	Converts a perl data structure into its JSON representation.	306	Converts a perl data structure into its JSON representation.
220		307
221	=cut	308	=cut
222		309
223	sub to_json($) {	310	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	311
225	JSON::Syck::Dump $_[0]	312	sub encode_json($) { $json_coder->encode ($_[0]) }
		313	sub decode_json($) { $json_coder->decode ($_[0]) }
		314
		315	=item cf::post_init { BLOCK }
		316
		317	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		318	but I<before> the server starts ticking again.
		319
		320	The cdoeblock will have a single boolean argument to indicate whether this
		321	is a reload or not.
		322
		323	=cut
		324
		325	sub post_init(&) {
		326	push @POST_INIT, shift;
226	}	327	}
227		328
228	=item cf::lock_wait $string	329	=item cf::lock_wait $string
229		330
230	Wait until the given lock is available. See cf::lock_acquire.	331	Wait until the given lock is available. See cf::lock_acquire.
231		332
232	=item my $lock = cf::lock_acquire $string	333	=item my $lock = cf::lock_acquire $string
233		334
234	Wait until the given lock is available and then acquires it and returns	335	Wait until the given lock is available and then acquires it and returns
235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	336	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
236	for example when the coroutine gets canceled), the lock is automatically	337	for example when the coroutine gets canceled), the lock is automatically
237	returned.	338	returned.
238		339
		340	Locks are *not* recursive, locking from the same coro twice results in a
		341	deadlocked coro.
		342
239	Lock names should begin with a unique identifier (for example, cf::map::find	343	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	344	uses map_find and cf::map::load uses map_load).
241		345
		346	=item $locked = cf::lock_active $string
		347
		348	Return true if the lock is currently active, i.e. somebody has locked it.
		349
242	=cut	350	=cut
243		351
244	our %LOCK;	352	our %LOCK;
		353	our %LOCKER;#d#
245		354
246	sub lock_wait($) {	355	sub lock_wait($) {
247	my ($key) = @_;	356	my ($key) = @_;
248		357
		358	if ($LOCKER{$key} == $Coro::current) {#d#
		359	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		360	return;#d#
		361	}#d#
		362
249	# wait for lock, if any	363	# wait for lock, if any
250	while ($LOCK{$key}) {	364	while ($LOCK{$key}) {
		365	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
251	push @{ $LOCK{$key} }, $Coro::current;	366	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;	367	Coro::schedule;
253	}	368	}
254	}	369	}
255		370
…		…
258		373
259	# wait, to be sure we are not locked	374	# wait, to be sure we are not locked
260	lock_wait $key;	375	lock_wait $key;
261		376
262	$LOCK{$key} = [];	377	$LOCK{$key} = [];
		378	$LOCKER{$key} = $Coro::current;#d#
263		379
264	Coro::guard {	380	Guard::guard {
		381	delete $LOCKER{$key};#d#
265	# wake up all waiters, to be on the safe side	382	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };	383	$_->ready for @{ delete $LOCK{$key} };
267	}	384	}
268	}	385	}
269		386
		387	sub lock_active($) {
		388	my ($key) = @_;
		389
		390	! ! $LOCK{$key}
		391	}
		392
270	sub freeze_mainloop {	393	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
272		395
273	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
274	$TICK_WATCHER->start;	397	}
275	$WRITE_RUNTIME_WATCHER->start;	398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
276	};	457	}
277	$WRITE_RUNTIME_WATCHER->stop;	458	};
278	$TICK_WATCHER->stop;	459
279	$guard	460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
280	}	472	}
281		473
282	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
283		475
284	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		481
290	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
291		483
292	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
293		485
294	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
297		490
298	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
301	fast or be very important.	494	fast or be very important.
…		…
304		497
305	sub sync_job(&) {	498	sub sync_job(&) {
306	my ($job) = @_;	499	my ($job) = @_;
307		500
308	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
309	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
311		506
312	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	508
314	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
315		510
316	my $busy = 1;	511	my $busy = 1;
317	my @res;	512	my @res;
318		513
319	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	516	@res = eval { $job->() };
321	warn $@ if $@;	517	warn $@ if $@;
322	undef $busy;	518	undef $busy;
323	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
324		520
325	while ($busy) {	521	while ($busy) {
326	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
327	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
328		532
329	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
330	} else {	534	} else {
331	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
332		536
…		…
352	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
353		557
354	$coro	558	$coro
355	}	559	}
356		560
357	sub write_runtime {	561	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		562
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	563	Executes the given code block with the given arguments in a seperate
361	or return;	564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
362		567
363	my $value = $cf::RUNTIME + 90 + 10;	568	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		569
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	570	sub fork_call(&@) {
368	and return;	571	my ($cb, @args) = @_;
369		572
370	# always fsync - this file is important	573	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	574	# otherwise perl prematurely frees the stuff :/
372	and return;	575	# TODO: investigate and fix (likely this will be rather laborious)
373		576
374	close $fh	577	my @res = Coro::Util::fork_eval {
375	or return;	578	reset_signals;
		579	&$cb
		580	}, @args;
376		581
377	aio_rename "$runtime~", $runtime	582	wantarray ? @res : $res[-1]
378	and return;	583	}
379		584
		585	=item $coin = coin_from_name $name
		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
		639	};
		640	cf::cleanup "db_open(db): $@" if $@;
		641
		642	$db
		643	}
		644
		645	our $DB;
		646
		647	sub db_init {
		648	cf::sync_job {
		649	$DB ||= db_table "db";
		650	};
		651	}
		652
		653	sub db_get($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
380	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		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 });
381	}	748	}
382		749
383	=back	750	=back
384		751
385	=cut	752	=cut
386		753
387	#############################################################################	754	#############################################################################
388		755
389	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
390		757
391	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
392	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")
393	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
394		761
395	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>
396	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
397	crossfire+).	764	Deliantra).
398		765
399	=over 4	766	=over 4
400		767
401	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
402		769
…		…
446	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
447		814
448	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
450		817
451	Some classes such as crossfire maps and objects can specify attachments	818	Some classes such as deliantra maps and objects can specify attachments
452	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.
453		820
454	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
455		822
456	=over 4	823	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
566		933
567	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		938
572	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	940	my $pkg = shift @arg;
574		941
575	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
605	}	972	}
606		973
607	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
608	} else {	975	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	977	}
611		978
612	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
613	}	980	}
614		981
…		…
616	if (ref $_[0]) {	983	if (ref $_[0]) {
617	_object_attach @_;	984	_object_attach @_;
618	} else {	985	} else {
619	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
620	}	987	}
		988	_recalc_want;
621	};	989	};
622		990
623	# all those should be optimised	991	# all those should be optimised
624	sub cf::attachable::detach {	992	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
629	reattach ($obj);	997	reattach ($obj);
630	} else {	998	} else {
631	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
632	}	1000	}
		1001	_recalc_want;
633	};	1002	};
634		1003
635	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
637		1006
…		…
652	";	1021	";
653	die if $@;	1022	die if $@;
654	}	1023	}
655		1024
656	our $override;	1025	our $override;
657	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?
658		1027
659	sub override {	1028	sub override {
660	$override = 1;	1029	$override = 1;
661	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
662	}	1031	}
663		1032
664	sub do_invoke {	1033	sub do_invoke {
665	my $event = shift;	1034	my $event = shift;
666	my $callbacks = shift;	1035	my $callbacks = shift;
667		1036
668	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
669		1038
670	local $override;	1039	local $override;
671		1040
672	for (@$callbacks) {	1041	for (@$callbacks) {
673	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
682	}	1051	}
683		1052
684	0	1053	0
685	}	1054	}
686		1055
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1057
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1059
691	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
692		1061
693	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
694	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
695	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1065
697	=back	1066	=back
698		1067
699	=cut	1068	=cut
700		1069
701	#############################################################################	1070	#############################################################################
702	# 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, $ob2
		1113	}
703		1114
704	sub reattach {	1115	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1117	my ($obj) = @_;
707		1118
		1119	# no longer needed after getting rid of delete_package?
708	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
709		1121
710	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
711		1123
712	@$registry = ();	1124	@$registry = ();
713		1125
…		…
728	cf::attachable->attach (	1140	cf::attachable->attach (
729	prio => -1000000,	1141	prio => -1000000,
730	on_instantiate => sub {	1142	on_instantiate => sub {
731	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
732		1144
733	$data = from_json $data;	1145	$data = decode_json $data;
734		1146
735	for (@$data) {	1147	for (@$data) {
736	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
737		1149
738	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1166	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
756		1168
757	sync_job {	1169	sync_job {
758	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
761		1174
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1178	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1179	aio_close $fh;
767		1180
768	if (@$objs) {	1181	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1182	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1183	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1184	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1185	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1186	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1187	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1188	aio_rename "$filename.pst~", "$filename.pst";
776	}	1189	}
777	} else {	1190	} else {
778	aio_unlink "$filename.pst";	1191	aio_unlink "$filename.pst";
779	}	1192	}
780		1193
781	aio_rename "$filename~", $filename;	1194	aio_rename "$filename~", $filename;
		1195
		1196	$filename =~ s%/[^/]+$%%;
		1197	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1198	} else {
783	warn "FATAL: $filename~: $!\n";	1199	warn "FATAL: $filename~: $!\n";
784	}	1200	}
785	} else {	1201	} else {
786	aio_unlink $filename;	1202	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
788	}	1204	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1205	};
796	}	1206	}
797		1207
798	sub object_freezer_as_string {	1208	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1209	my ($rdata, $objs) = @_;
800		1210
…		…
805		1215
806	sub object_thawer_load {	1216	sub object_thawer_load {
807	my ($filename) = @_;	1217	my ($filename) = @_;
808		1218
809	my ($data, $av);	1219	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1220
814	(aio_load $filename, $data) >= 0	1221	(aio_load $filename, $data) >= 0
815	or return;	1222	or return;
816		1223
817	unless (aio_stat "$filename.pst") {	1224	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1225	(aio_load "$filename.pst", $av) >= 0
819	or return;	1226	or return;
		1227
820	$av = eval { (Storable::thaw $av)->{objs} };	1228	my $st = eval { Coro::Storable::thaw $av };
		1229	$av = $st->{objs};
821	}	1230	}
822		1231
		1232	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1233	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1234	$decname, length $data, scalar @{$av || []};
		1235
825	return ($data, $av);	1236	($data, $av)
826	}	1237	}
		1238
		1239	=head2 COMMAND CALLBACKS
		1240
		1241	=over 4
		1242
		1243	=cut
827		1244
828	#############################################################################	1245	#############################################################################
829	# command handling &c	1246	# command handling &c
830		1247
831	=item cf::register_command $name => \&callback($ob,$args);	1248	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1261	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1262	}
846		1263
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1264	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1265
849	Register a callbackf ro execution when the client sends an extcmd packet.	1266	Register a callback for execution when the client sends an (synchronous)
		1267	extcmd packet. Ext commands will be processed in the order they are
		1268	received by the server, like other user commands. The first argument is
		1269	the logged-in player. Ext commands can only be processed after a player
		1270	has logged in successfully.
850		1271
851	If the callback returns something, it is sent back as if reply was being	1272	If the callback returns something, it is sent back as if reply was being
852	called.	1273	called.
853		1274
		1275	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1276
		1277	Register a callback for execution when the client sends an (asynchronous)
		1278	exticmd packet. Exti commands are processed by the server as soon as they
		1279	are received, i.e. out of order w.r.t. other commands. The first argument
		1280	is a client socket. Exti commands can be received anytime, even before
		1281	log-in.
		1282
		1283	If the callback returns something, it is sent back as if reply was being
		1284	called.
		1285
854	=cut	1286	=cut
855		1287
856	sub register_extcmd {	1288	sub register_extcmd {
857	my ($name, $cb) = @_;	1289	my ($name, $cb) = @_;
858		1290
859	$EXTCMD{$name} = $cb;	1291	$EXTCMD{$name} = $cb;
860	}	1292	}
		1293
		1294	sub register_exticmd {
		1295	my ($name, $cb) = @_;
		1296
		1297	$EXTICMD{$name} = $cb;
		1298	}
		1299
		1300	use File::Glob ();
861		1301
862	cf::player->attach (	1302	cf::player->attach (
863	on_command => sub {	1303	on_command => sub {
864	my ($pl, $name, $params) = @_;	1304	my ($pl, $name, $params) = @_;
865		1305
…		…
873	cf::override;	1313	cf::override;
874	},	1314	},
875	on_extcmd => sub {	1315	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1316	my ($pl, $buf) = @_;
877		1317
878	my $msg = eval { from_json $buf };	1318	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1319
880	if (ref $msg) {	1320	if (ref $msg) {
		1321	my ($type, $reply, @payload) =
		1322	"ARRAY" eq ref $msg
		1323	? @$msg
		1324	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1325
		1326	my @reply;
		1327
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1328	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1329	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1330	}
		1331
		1332	$pl->ext_reply ($reply, @reply)
		1333	if $reply;
		1334
886	} else {	1335	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1336	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1337	}
889		1338
890	cf::override;	1339	cf::override;
891	},	1340	},
892	);	1341	);
893		1342
		1343	# "readahead" all extensions
894	sub load_extension {	1344	sub cache_extensions {
895	my ($path) = @_;	1345	my $grp = IO::AIO::aio_group;
896		1346
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1347	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
898	my $base = $1;	1348	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1349	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}	1350	}
922	die $@;
923	}	1351	};
924		1352
925	push @EXTS, $pkg;	1353	$grp
926	}	1354	}
927		1355
928	sub load_extensions {	1356	sub load_extensions {
		1357	cf::sync_job {
		1358	my %todo;
		1359
929	for my $ext (<$LIBDIR/*.ext>) {	1360	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1361	next unless -r $path;
931	eval {	1362
932	load_extension $ext;	1363	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1364	my $base = $1;
		1365	my $pkg = $1;
		1366	$pkg =~ s/[^[:word:]]/_/g;
		1367	$pkg = "ext::$pkg";
		1368
		1369	open my $fh, "<:utf8", $path
		1370	or die "$path: $!";
		1371
		1372	my $source = do { local $/; <$fh> };
		1373
		1374	my %ext = (
		1375	path => $path,
		1376	base => $base,
		1377	pkg => $pkg,
		1378	);
		1379
		1380	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1381	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1382
		1383	$ext{source} =
		1384	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1385	. "#line 1 \"$path\"\n{\n"
		1386	. $source
		1387	. "\n};\n1";
		1388
		1389	$todo{$base} = \%ext;
		1390	}
		1391
		1392	my %done;
		1393	while (%todo) {
		1394	my $progress;
		1395
		1396	while (my ($k, $v) = each %todo) {
		1397	for (split /,\s*/, $v->{meta}{depends}) {
		1398	goto skip
		1399	unless exists $done{$_};
		1400	}
		1401
		1402	warn "... loading '$k' into '$v->{pkg}'\n";
		1403
		1404	unless (eval $v->{source}) {
		1405	my $msg = $@ ? "$v->{path}: $@\n"
		1406	: "$v->{base}: extension inactive.\n";
		1407
		1408	if (exists $v->{meta}{mandatory}) {
		1409	warn $msg;
		1410	cf::cleanup "mandatory extension failed to load, exiting.";
		1411	}
		1412
		1413	warn $msg;
		1414	}
		1415
		1416	$done{$k} = delete $todo{$k};
		1417	push @EXTS, $v->{pkg};
		1418	$progress = 1;
933	1	1419	}
934	} or warn "$ext not loaded: $@";	1420
		1421	skip:
		1422	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1423	unless $progress;
		1424	}
935	}	1425	};
936	}	1426	}
937		1427
938	#############################################################################	1428	#############################################################################
939		1429
		1430	=back
		1431
940	=head2 CORE EXTENSIONS	1432	=head2 CORE EXTENSIONS
941		1433
942	Functions and methods that extend core crossfire objects.	1434	Functions and methods that extend core deliantra objects.
943		1435
944	=cut	1436	=cut
945		1437
946	package cf::player;	1438	package cf::player;
947		1439
…		…
949		1441
950	=head3 cf::player	1442	=head3 cf::player
951		1443
952	=over 4	1444	=over 4
953		1445
		1446	=item cf::player::num_playing
		1447
		1448	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1449
		1450	=cut
		1451
		1452	sub num_playing {
		1453	scalar grep
		1454	$_->ob->map
		1455	&& !$_->hidden
		1456	&& !$_->ob->flag (cf::FLAG_WIZ),
		1457	cf::player::list
		1458	}
		1459
954	=item cf::player::find $login	1460	=item cf::player::find $login
955		1461
956	Returns the given player object, loading it if necessary (might block).	1462	Returns the given player object, loading it if necessary (might block).
957		1463
958	=cut	1464	=cut
959		1465
960	sub playerdir($) {	1466	sub playerdir($) {
961	cf::localdir	1467	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1468	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1469	}
967		1470
968	sub path($) {	1471	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1472	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1473
971	(playerdir $login) . "/$login.pl"	1474	(playerdir $login) . "/playerdata"
972	}	1475	}
973		1476
974	sub find_active($) {	1477	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1478	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1479	and $cf::PLAYER{$_[0]}->active
…		…
979		1482
980	sub exists($) {	1483	sub exists($) {
981	my ($login) = @_;	1484	my ($login) = @_;
982		1485
983	$cf::PLAYER{$login}	1486	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1487	or !aio_stat path $login
985	}	1488	}
986		1489
987	sub find($) {	1490	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1491	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1492	my $login = $_[0];
990		1493
991	my $guard = cf::lock_acquire "user_find:$login";	1494	my $guard = cf::lock_acquire "user_find:$login";
992		1495
993	$cf::PLAYER{$_[0]} || do {	1496	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1497	# rename old playerfiles to new ones
		1498	#TODO: remove when no longer required
		1499	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1500	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1501	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1502	aio_unlink +(playerdir $login) . "/$login.pl";
		1503
		1504	my $f = new_from_file cf::object::thawer path $login
995	or return;	1505	or return;
		1506
		1507	my $pl = cf::player::load_pl $f
		1508	or return;
		1509
		1510	local $cf::PLAYER_LOADING{$login} = $pl;
		1511	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1512	$cf::PLAYER{$login} = $pl
997	}	1513	}
998	}	1514	}
999	}	1515	}
1000		1516
…		…
1009	return if $pl->{deny_save};	1525	return if $pl->{deny_save};
1010		1526
1011	aio_mkdir playerdir $pl, 0770;	1527	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1528	$pl->{last_save} = $cf::RUNTIME;
1013		1529
		1530	cf::get_slot 0.01;
		1531
1014	$pl->save_pl ($path);	1532	$pl->save_pl ($path);
1015	Coro::cede;	1533	cf::cede_to_tick;
1016	}	1534	}
1017		1535
1018	sub new($) {	1536	sub new($) {
1019	my ($login) = @_;	1537	my ($login) = @_;
1020		1538
…		…
1026	$cf::PLAYER{$login} = $self;	1544	$cf::PLAYER{$login} = $self;
1027		1545
1028	$self	1546	$self
1029	}	1547	}
1030		1548
		1549	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1550
		1551	=cut
		1552
		1553	sub send_msg {
		1554	my $ns = shift->ns
		1555	or return;
		1556	$ns->send_msg (@_);
		1557	}
		1558
1031	=item $pl->quit_character	1559	=item $pl->quit_character
1032		1560
1033	Nukes the player without looking back. If logged in, the connection will	1561	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1562	be destroyed. May block for a long time.
1035		1563
1036	=cut	1564	=cut
1037		1565
1038	sub quit_character {	1566	sub quit_character {
1039	my ($pl) = @_;	1567	my ($pl) = @_;
1040		1568
		1569	my $name = $pl->ob->name;
		1570
1041	$pl->{deny_save} = 1;	1571	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1572	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1573
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1574	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1575	$pl->deactivate;
		1576	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1577	$pl->ob->check_score;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1578	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1579	$pl->ns->destroy if $pl->ns;
1048		1580
1049	my $path = playerdir $pl;	1581	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1582	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1583	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1584	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1585	$pl->destroy;
		1586
		1587	my $prefix = qr<^~\Q$name\E/>;
		1588
		1589	# nuke player maps
		1590	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1591
1054	IO::AIO::aio_rmtree $temp;	1592	IO::AIO::aio_rmtree $temp;
		1593	}
		1594
		1595	=item $pl->kick
		1596
		1597	Kicks a player out of the game. This destroys the connection.
		1598
		1599	=cut
		1600
		1601	sub kick {
		1602	my ($pl, $kicker) = @_;
		1603
		1604	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1605	$pl->killer ("kicked");
		1606	$pl->ns->destroy;
1055	}	1607	}
1056		1608
1057	=item cf::player::list_logins	1609	=item cf::player::list_logins
1058		1610
1059	Returns am arrayref of all valid playernames in the system, can take a	1611	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1612	while and may block, so not sync_job-capable, ever.
1061		1613
1062	=cut	1614	=cut
1063		1615
1064	sub list_logins {	1616	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1617	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1618	or return [];
1067		1619
1068	my @logins;	1620	my @logins;
1069		1621
1070	for my $login (@$dirs) {	1622	for my $login (@$dirs) {
		1623	my $path = path $login;
		1624
		1625	# a .pst is a dead give-away for a valid player
		1626	# if no pst file found, open and chekc for blocked users
		1627	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1628	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1629	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1630	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1631	}
1074		1632
1075	utf8::decode $login;	1633	utf8::decode $login;
1076	push @logins, $login;	1634	push @logins, $login;
1077	}	1635	}
1078		1636
…		…
1105	}	1663	}
1106		1664
1107	\@paths	1665	\@paths
1108	}	1666	}
1109		1667
		1668	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1669
		1670	Expand deliantra pod fragments into protocol xml.
		1671
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1672	=item $player->ext_reply ($msgid, @msg)
1111		1673
1112	Sends an ext reply to the player.	1674	Sends an ext reply to the player.
1113		1675
1114	=cut	1676	=cut
1115		1677
1116	sub ext_reply($$$%) {	1678	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1679	my ($self, $id, @msg) = @_;
1118		1680
1119	$msg{msgid} = $id;	1681	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1682	}
1123		1683
1124	package cf;	1684	=item $player->ext_msg ($type, @msg)
		1685
		1686	Sends an ext event to the client.
		1687
		1688	=cut
		1689
		1690	sub ext_msg($$@) {
		1691	my ($self, $type, @msg) = @_;
		1692
		1693	$self->ns->ext_msg ($type, @msg);
		1694	}
		1695
		1696	=head3 cf::region
		1697
		1698	=over 4
		1699
		1700	=cut
		1701
		1702	package cf::region;
		1703
		1704	=item cf::region::find_by_path $path
		1705
		1706	Tries to decuce the likely region for a map knowing only its path.
		1707
		1708	=cut
		1709
		1710	sub find_by_path($) {
		1711	my ($path) = @_;
		1712
		1713	my ($match, $specificity);
		1714
		1715	for my $region (list) {
		1716	if ($region->{match} && $path =~ $region->{match}) {
		1717	($match, $specificity) = ($region, $region->specificity)
		1718	if $region->specificity > $specificity;
		1719	}
		1720	}
		1721
		1722	$match
		1723	}
1125		1724
1126	=back	1725	=back
1127
1128		1726
1129	=head3 cf::map	1727	=head3 cf::map
1130		1728
1131	=over 4	1729	=over 4
1132		1730
…		…
1144	our $MAX_RESET = 3600;	1742	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1743	our $DEFAULT_RESET = 3000;
1146		1744
1147	sub generate_random_map {	1745	sub generate_random_map {
1148	my ($self, $rmp) = @_;	1746	my ($self, $rmp) = @_;
		1747
		1748	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1749
1149	# mit "rum" bekleckern, nicht	1750	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1751	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1752	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1753	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1754	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1187	my ($self, $merge) = @_;	1788	my ($self, $merge) = @_;
1188		1789
1189	# we have to keep some variables in memory intact	1790	# we have to keep some variables in memory intact
1190	local $self->{path};	1791	local $self->{path};
1191	local $self->{load_path};	1792	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1793
1195	$self->SUPER::thawer_merge ($merge);	1794	$self->SUPER::thawer_merge ($merge);
1196	}	1795	}
1197		1796
1198	sub normalise {	1797	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1844	$self->init; # pass $1 etc.
1246	return $self;	1845	return $self;
1247	}	1846	}
1248	}	1847	}
1249		1848
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1849	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1850	()
1252	}	1851	}
1253		1852
1254	sub init {	1853	sub init {
1255	my ($self) = @_;	1854	my ($self) = @_;
…		…
1270		1869
1271	# the original (read-only) location	1870	# the original (read-only) location
1272	sub load_path {	1871	sub load_path {
1273	my ($self) = @_;	1872	my ($self) = @_;
1274		1873
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1874	"$MAPDIR/$self->{path}.map"
1276	}	1875	}
1277		1876
1278	# the temporary/swap location	1877	# the temporary/swap location
1279	sub save_path {	1878	sub save_path {
1280	my ($self) = @_;	1879	my ($self) = @_;
1281		1880
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1881	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1882	"$TMPDIR/$path.map"
1284	}	1883	}
1285		1884
1286	# the unique path, undef == no special unique path	1885	# the unique path, undef == no special unique path
1287	sub uniq_path {	1886	sub uniq_path {
1288	my ($self) = @_;	1887	my ($self) = @_;
1289		1888
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1889	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1890	"$UNIQUEDIR/$path"
1292	}	1891	}
1293		1892
1294	# and all this just because we cannot iterate over	1893	# and all this just because we cannot iterate over
1295	# all maps in C++...	1894	# all maps in C++...
1296	sub change_all_map_light {	1895	sub change_all_map_light {
…		…
1298		1897
1299	$_->change_map_light ($change)	1898	$_->change_map_light ($change)
1300	for grep $_->outdoor, values %cf::MAP;	1899	for grep $_->outdoor, values %cf::MAP;
1301	}	1900	}
1302		1901
		1902	sub decay_objects {
		1903	my ($self) = @_;
		1904
		1905	return if $self->{deny_reset};
		1906
		1907	$self->do_decay_objects;
		1908	}
		1909
1303	sub unlink_save {	1910	sub unlink_save {
1304	my ($self) = @_;	1911	my ($self) = @_;
1305		1912
1306	utf8::encode (my $save = $self->save_path);	1913	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1914	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1915	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1916	}
1315		1917
1316	sub load_header_from($) {	1918	sub load_header_from($) {
1317	my ($self, $path) = @_;	1919	my ($self, $path) = @_;
1318		1920
1319	utf8::encode $path;	1921	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1922	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1923	or return;
		1924
		1925	$self->_load_header ($f)
		1926	or return;
		1927
		1928	local $MAP_LOADING{$self->{path}} = $self;
		1929	$f->resolve_delayed_derefs;
1325		1930
1326	$self->{load_path} = $path;	1931	$self->{load_path} = $path;
1327		1932
1328	1	1933	1
1329	}	1934	}
…		…
1368	$self->load_header_orig	1973	$self->load_header_orig
1369	or return;	1974	or return;
1370	$self->prepare_orig;	1975	$self->prepare_orig;
1371	}	1976	}
1372		1977
		1978	$self->{deny_reset} = 1
		1979	if $self->no_reset;
		1980
		1981	$self->default_region (cf::region::find_by_path $self->{path})
		1982	unless $self->default_region;
		1983
1373	1	1984	1
1374	}	1985	}
1375		1986
1376	sub find;	1987	sub find;
1377	sub find {	1988	sub find {
1378	my ($path, $origin) = @_;	1989	my ($path, $origin) = @_;
1379		1990
1380	$path = normalise $path, $origin && $origin->path;	1991	$path = normalise $path, $origin && $origin->path;
1381		1992
		1993	cf::lock_wait "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	1994	cf::lock_wait "map_find:$path";
1383		1995
1384	$cf::MAP{$path} || do {	1996	$cf::MAP{$path} || do {
		1997	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1385	my $guard = cf::lock_acquire "map_find:$path";	1998	my $guard2 = cf::lock_acquire "map_find:$path";
		1999
1386	my $map = new_from_path cf::map $path	2000	my $map = new_from_path cf::map $path
1387	or return;	2001	or return;
1388		2002
1389	$map->{last_save} = $cf::RUNTIME;	2003	$map->{last_save} = $cf::RUNTIME;
1390		2004
1391	$map->load_header	2005	$map->load_header
1392	or return;	2006	or return;
1393		2007
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2008	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	2009	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	2010	#$cf::WAIT_FOR_TICK->wait;
		2011	undef $guard2;
		2012	undef $guard1;
1397	$map->reset;	2013	$map->reset;
1398	undef $guard;
1399	return find $path;	2014	return find $path;
1400	}	2015	}
1401		2016
1402	$cf::MAP{$path} = $map	2017	$cf::MAP{$path} = $map
1403	}	2018	}
…		…
1410	my ($self) = @_;	2025	my ($self) = @_;
1411		2026
1412	local $self->{deny_reset} = 1; # loading can take a long time	2027	local $self->{deny_reset} = 1; # loading can take a long time
1413		2028
1414	my $path = $self->{path};	2029	my $path = $self->{path};
		2030
		2031	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2032	my $guard = cf::lock_acquire "map_data:$path";
1416		2033
		2034	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2035	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2036
1419	$self->in_memory (cf::MAP_LOADING);	2037	$self->in_memory (cf::MAP_LOADING);
1420		2038
1421	$self->alloc;	2039	$self->alloc;
1422		2040
1423	$self->pre_load;	2041	$self->pre_load;
		2042	cf::cede_to_tick;
1424		2043
1425	$self->_load_objects ($self->{load_path}, 1)	2044	my $f = new_from_file cf::object::thawer $self->{load_path};
		2045	$f->skip_block;
		2046	$self->_load_objects ($f)
1426	or return;	2047	or return;
1427		2048
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2049	$self->post_load_original
1429	if delete $self->{load_original};	2050	if delete $self->{load_original};
1430		2051
1431	if (my $uniq = $self->uniq_path) {	2052	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2053	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2054	unless (aio_stat $uniq) {
		2055	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2056	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2057	$self->_load_objects ($f);
		2058	$f->resolve_delayed_derefs;
		2059	}
1436	}	2060	}
1437	}	2061	}
1438		2062
1439	Coro::cede;	2063	$f->resolve_delayed_derefs;
1440		2064
		2065	cf::cede_to_tick;
1441	# now do the right thing for maps	2066	# now do the right thing for maps
1442	$self->link_multipart_objects;	2067	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2068	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2069	unless $self->difficulty;
1452	Coro::cede;	2070	cf::cede_to_tick;
		2071
		2072	unless ($self->{deny_activate}) {
		2073	$self->decay_objects;
		2074	$self->fix_auto_apply;
		2075	$self->update_buttons;
		2076	cf::cede_to_tick;
		2077	$self->set_darkness_map;
		2078	cf::cede_to_tick;
1453	$self->activate;	2079	$self->activate;
		2080	}
		2081
		2082	$self->{last_save} = $cf::RUNTIME;
		2083	$self->last_access ($cf::RUNTIME);
		2084
		2085	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2086	}
1455		2087
1456	$self->post_load;	2088	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2089	}
1460		2090
1461	sub customise_for {	2091	sub customise_for {
1462	my ($self, $ob) = @_;	2092	my ($self, $ob) = @_;
1463		2093
1464	return find "~" . $ob->name . "/" . $self->{path}	2094	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2095	if $self->per_player;
1466		2096
		2097	# return find "?party/" . $ob->name . "/" . $self->{path}
		2098	# if $self->per_party;
		2099
1467	$self	2100	$self
1468	}	2101	}
1469		2102
1470	# find and load all maps in the 3x3 area around a map	2103	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2104	sub load_neighbours {
1472	my ($map) = @_;	2105	my ($map) = @_;
1473		2106
1474	my @diag; # diagonal neighbours	2107	my @neigh; # diagonal neighbours
1475		2108
1476	for (0 .. 3) {	2109	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2110	my $neigh = $map->tile_path ($_)
1478	or next;	2111	or next;
1479	$neigh = find $neigh, $map	2112	$neigh = find $neigh, $map
1480	or next;	2113	or next;
1481	$neigh->load;	2114	$neigh->load;
1482		2115
		2116	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2117	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2118	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2119	}
1486		2120
1487	for (@diag) {	2121	for (grep defined $_->[0], @neigh) {
		2122	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2123	my $neigh = find $path, $origin
1489	or next;	2124	or next;
1490	$neigh->load;	2125	$neigh->load;
1491	}	2126	}
1492	}	2127	}
1493		2128
…		…
1498	}	2133	}
1499		2134
1500	sub do_load_sync {	2135	sub do_load_sync {
1501	my ($map) = @_;	2136	my ($map) = @_;
1502		2137
		2138	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2139	if $Coro::current == $Coro::main;
		2140
1503	cf::sync_job { $map->load };	2141	cf::sync_job { $map->load };
1504	}	2142	}
1505		2143
1506	our %MAP_PREFETCH;	2144	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2145	our $MAP_PREFETCHER = undef;
1508		2146
1509	sub find_async {	2147	sub find_async {
1510	my ($path, $origin) = @_;	2148	my ($path, $origin, $load) = @_;
1511		2149
1512	$path = normalise $path, $origin && $origin->{path};	2150	$path = normalise $path, $origin && $origin->{path};
1513		2151
1514	if (my $map = $cf::MAP{$path}) {	2152	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2153	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2154	}
1517		2155
1518	undef $MAP_PREFETCH{$path};	2156	$MAP_PREFETCH{$path} |= $load;
		2157
1519	$MAP_PREFETCHER ||= cf::async {	2158	$MAP_PREFETCHER ||= cf::async {
		2159	$Coro::current->{desc} = "map prefetcher";
		2160
1520	while (%MAP_PREFETCH) {	2161	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2162	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2163	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2164	$map->load if $v;
		2165	}
1525		2166
1526	delete $MAP_PREFETCH{$path};	2167	delete $MAP_PREFETCH{$k};
1527	}	2168	}
1528	}	2169	}
1529	undef $MAP_PREFETCHER;	2170	undef $MAP_PREFETCHER;
1530	};	2171	};
1531	$MAP_PREFETCHER->prio (6);	2172	$MAP_PREFETCHER->prio (6);
…		…
1534	}	2175	}
1535		2176
1536	sub save {	2177	sub save {
1537	my ($self) = @_;	2178	my ($self) = @_;
1538		2179
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;	2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
1540		2181
1541	$self->{last_save} = $cf::RUNTIME;	2182	$self->{last_save} = $cf::RUNTIME;
1542		2183
1543	return unless $self->dirty;	2184	return unless $self->dirty;
1544		2185
…		…
1550	return if $self->{deny_save};	2191	return if $self->{deny_save};
1551		2192
1552	local $self->{last_access} = $self->last_access;#d#	2193	local $self->{last_access} = $self->last_access;#d#
1553		2194
1554	cf::async {	2195	cf::async {
		2196	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2197	$_->contr->save for $self->players;
1556	};	2198	};
		2199
		2200	cf::get_slot 0.02;
1557		2201
1558	if ($uniq) {	2202	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2203	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2204	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2205	} else {
…		…
1567	my ($self) = @_;	2211	my ($self) = @_;
1568		2212
1569	# save first because save cedes	2213	# save first because save cedes
1570	$self->save;	2214	$self->save;
1571		2215
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2216	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2217
1574	return if $self->players;	2218	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;	2219	return if $self->in_memory != cf::MAP_ACTIVE;
1576	return if $self->{deny_save};	2220	return if $self->{deny_save};
1577		2221
		2222	$self->in_memory (cf::MAP_SWAPPED);
		2223
		2224	$self->deactivate;
		2225	$_->clear_links_to ($self) for values %cf::MAP;
1578	$self->clear;	2226	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2227	}
1581		2228
1582	sub reset_at {	2229	sub reset_at {
1583	my ($self) = @_;	2230	my ($self) = @_;
1584		2231
1585	# TODO: safety, remove and allow resettable per-player maps	2232	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2233	return 1e99 if $self->{deny_reset};
1588		2234
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2235	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2236	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2237
…		…
1602	my ($self) = @_;	2248	my ($self) = @_;
1603		2249
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2250	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2251
1606	return if $self->players;	2252	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2253
1609	warn "resetting map ", $self->path;#d#	2254	warn "resetting map ", $self->path;
		2255
		2256	$self->in_memory (cf::MAP_SWAPPED);
		2257
		2258	# need to save uniques path
		2259	unless ($self->{deny_save}) {
		2260	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2261
		2262	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2263	if $uniq;
		2264	}
1610		2265
1611	delete $cf::MAP{$self->path};	2266	delete $cf::MAP{$self->path};
1612		2267
1613	$self->in_memory (cf::MAP_SWAPPED);	2268	$self->deactivate;
		2269	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2270	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2271
1618	$self->unlink_save;	2272	$self->unlink_save;
1619	$self->destroy;	2273	$self->destroy;
1620	}	2274	}
1621		2275
1622	my $nuke_counter = "aaaa";	2276	my $nuke_counter = "aaaa";
1623		2277
1624	sub nuke {	2278	sub nuke {
1625	my ($self) = @_;	2279	my ($self) = @_;
1626		2280
		2281	{
		2282	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2283
1627	delete $cf::MAP{$self->path};	2284	delete $cf::MAP{$self->path};
1628		2285
1629	$self->unlink_save;	2286	$self->unlink_save;
1630		2287
1631	bless $self, "cf::map";	2288	bless $self, "cf::map";
1632	delete $self->{deny_reset};	2289	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2290	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2291	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2292	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2293
1637	$cf::MAP{$self->path} = $self;	2294	$cf::MAP{$self->path} = $self;
		2295	}
1638		2296
1639	$self->reset; # polite request, might not happen	2297	$self->reset; # polite request, might not happen
		2298	}
		2299
		2300	=item $maps = cf::map::tmp_maps
		2301
		2302	Returns an arrayref with all map paths of currently instantiated and saved
		2303	maps. May block.
		2304
		2305	=cut
		2306
		2307	sub tmp_maps() {
		2308	[
		2309	map {
		2310	utf8::decode $_;
		2311	/\.map$/
		2312	? normalise $_
		2313	: ()
		2314	} @{ aio_readdir $TMPDIR or [] }
		2315	]
		2316	}
		2317
		2318	=item $maps = cf::map::random_maps
		2319
		2320	Returns an arrayref with all map paths of currently instantiated and saved
		2321	random maps. May block.
		2322
		2323	=cut
		2324
		2325	sub random_maps() {
		2326	[
		2327	map {
		2328	utf8::decode $_;
		2329	/\.map$/
		2330	? normalise "?random/$_"
		2331	: ()
		2332	} @{ aio_readdir $RANDOMDIR or [] }
		2333	]
1640	}	2334	}
1641		2335
1642	=item cf::map::unique_maps	2336	=item cf::map::unique_maps
1643		2337
1644	Returns an arrayref of paths of all shared maps that have	2338	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2339	instantiated unique items. May block.
1646		2340
1647	=cut	2341	=cut
1648		2342
1649	sub unique_maps() {	2343	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2344	[
1651	or return;	2345	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2346	utf8::decode $_;
1657	next if /\.pst$/;	2347	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2348	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2349	? ()
1660	push @paths, cf::map::normalise $_;	2350	: normalise $_
		2351	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2352	]
1662
1663	\@paths
1664	}	2353	}
1665
1666	package cf;
1667		2354
1668	=back	2355	=back
1669		2356
1670	=head3 cf::object	2357	=head3 cf::object
1671		2358
…		…
1675		2362
1676	=over 4	2363	=over 4
1677		2364
1678	=item $ob->inv_recursive	2365	=item $ob->inv_recursive
1679		2366
1680	Returns the inventory of the object _and_ their inventories, recursively.	2367	Returns the inventory of the object I<and> their inventories, recursively,
		2368	but I<not> the object itself.
1681		2369
1682	=cut	2370	=cut
1683		2371
1684	sub inv_recursive_;	2372	sub inv_recursive_;
1685	sub inv_recursive_ {	2373	sub inv_recursive_ {
…		…
1688		2376
1689	sub inv_recursive {	2377	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2378	inv_recursive_ inv $_[0]
1691	}	2379	}
1692		2380
		2381	=item $ref = $ob->ref
		2382
		2383	Creates and returns a persistent reference to an object that can be stored as a string.
		2384
		2385	=item $ob = cf::object::deref ($refstring)
		2386
		2387	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2388	even if the object actually exists. May block.
		2389
		2390	=cut
		2391
		2392	sub deref {
		2393	my ($ref) = @_;
		2394
		2395	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2396	my ($uuid, $name) = ($1, $2);
		2397	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2398	or return;
		2399	$pl->ob->uuid eq $uuid
		2400	or return;
		2401
		2402	$pl->ob
		2403	} else {
		2404	warn "$ref: cannot resolve object reference\n";
		2405	undef
		2406	}
		2407	}
		2408
1693	package cf;	2409	package cf;
1694		2410
1695	=back	2411	=back
1696		2412
1697	=head3 cf::object::player	2413	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2419	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1704	can be C<undef>. Does the right thing when the player is currently in a	2420	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2421	dialogue with the given NPC character.
1706		2422
1707	=cut	2423	=cut
		2424
		2425	our $SAY_CHANNEL = {
		2426	id => "say",
		2427	title => "Map",
		2428	reply => "say ",
		2429	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2430	};
		2431
		2432	our $CHAT_CHANNEL = {
		2433	id => "chat",
		2434	title => "Chat",
		2435	reply => "chat ",
		2436	tooltip => "Player chat and shouts, global to the server.",
		2437	};
1708		2438
1709	# rough implementation of a future "reply" method that works	2439	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2440	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2441	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2442	sub cf::object::player::reply($$$;$) {
…		…
1714		2444
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2445	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2446
1717	if ($self->{record_replies}) {	2447	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2448	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2449
1719	} else {	2450	} else {
		2451	my $pl = $self->contr;
		2452
		2453	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2454	my $dialog = $pl->{npc_dialog};
		2455	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2456
		2457	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2458	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2459	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2460	}
1722	}	2461	}
		2462	}
		2463
		2464	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2465
		2466	=cut
		2467
		2468	sub cf::object::send_msg {
		2469	my $pl = shift->contr
		2470	or return;
		2471	$pl->send_msg (@_);
1723	}	2472	}
1724		2473
1725	=item $player_object->may ("access")	2474	=item $player_object->may ("access")
1726		2475
1727	Returns wether the given player is authorized to access resource "access"	2476	Returns wether the given player is authorized to access resource "access"
…		…
1740		2489
1741	=item $player_object->enter_link	2490	=item $player_object->enter_link
1742		2491
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2492	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2493
1745	The player should be reasonably safe there for short amounts of time. You	2494	The player should be reasonably safe there for short amounts of time (e.g.
1746	I<MUST> call C<leave_link> as soon as possible, though.	2495	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2496	though, as the palyer cannot control the character while it is on the link
		2497	map.
1747		2498
1748	Will never block.	2499	Will never block.
1749		2500
1750	=item $player_object->leave_link ($map, $x, $y)	2501	=item $player_object->leave_link ($map, $x, $y)
1751		2502
…		…
1774	$self->deactivate_recursive;	2525	$self->deactivate_recursive;
1775		2526
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2527	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2528
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2529	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2530	if $self->map && $self->map->{path} ne "{link}";
1780		2531
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2532	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2533	}
1783		2534
1784	sub cf::object::player::leave_link {	2535	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2536	my ($self, $map, $x, $y) = @_;
		2537
		2538	return unless $self->contr->active;
1786		2539
1787	my $link_pos = delete $self->{_link_pos};	2540	my $link_pos = delete $self->{_link_pos};
1788		2541
1789	unless ($map) {	2542	unless ($map) {
1790	# restore original map position	2543	# restore original map position
…		…
1804	# use -1 or undef as default coordinates, not 0, 0	2557	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2558	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2559	if $x <=0 && $y <= 0;
1807		2560
1808	$map->load;	2561	$map->load;
1809	$map->load_diag;	2562	$map->load_neighbours;
1810		2563
1811	return unless $self->contr->active;	2564	return unless $self->contr->active;
		2565	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1812	$self->activate_recursive;	2566	$self->activate_recursive;
		2567
		2568	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2569	$self->enter_map ($map, $x, $y);
1814	}	2570	}
1815		2571
1816	cf::player->attach (	2572	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2573
1820	# abort map switching before logout	2574	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2575	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2576	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2577	the new (success) or old (failed) map position. In either case, $done will
1824	};	2578	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2579
1830	# try to abort aborted map switching on player login :)	2580	Note that $check will be called with a potentially non-loaded map, so if
1831	# should happen only on crashes	2581	it needs a loaded map it has to call C<< ->load >>.
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2582
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2583	=cut
		2584
		2585	our $GOTOGEN;
1851		2586
1852	sub cf::object::player::goto {	2587	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2588	my ($self, $path, $x, $y, $check, $done) = @_;
		2589
		2590	# do generation counting so two concurrent goto's will be executed in-order
		2591	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2592
1855	$self->enter_link;	2593	$self->enter_link;
1856		2594
1857	(async {	2595	(async {
		2596	$Coro::current->{desc} = "player::goto $path $x $y";
		2597
		2598	# *tag paths override both path and x|y
		2599	if ($path =~ /^\*(.*)$/) {
		2600	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2601	my $ob = $obs[rand @obs];
		2602
		2603	# see if we actually can go there
		2604	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2605	$ob = $obs[rand @obs];
		2606	} else {
		2607	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2608	}
		2609	# else put us there anyways for now #d#
		2610
		2611	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2612	} else {
		2613	($path, $x, $y) = (undef, undef, undef);
		2614	}
		2615	}
		2616
1858	my $map = eval {	2617	my $map = eval {
1859	my $map = cf::map::find $path;	2618	my $map = defined $path ? cf::map::find $path : undef;
		2619
		2620	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2621	$map = $map->customise_for ($self);
		2622	$map = $check->($map) if $check && $map;
		2623	} else {
		2624	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2625	}
		2626
1861	$map	2627	$map
		2628	};
		2629
		2630	if ($@) {
		2631	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2633	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2634
		2635	if ($gen == $self->{_goto_generation}) {
		2636	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2637	$self->leave_link ($map, $x, $y);
		2638	}
		2639
		2640	$done->() if $done;
1866	})->prio (1);	2641	})->prio (1);
1867	}	2642	}
1868		2643
1869	=item $player_object->enter_exit ($exit_object)	2644	=item $player_object->enter_exit ($exit_object)
1870		2645
…		…
1890	}	2665	}
1891		2666
1892	sub prepare_random_map {	2667	sub prepare_random_map {
1893	my ($exit) = @_;	2668	my ($exit) = @_;
1894		2669
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2670	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2671	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2672	# that depends on the exit object
1900		2673
1901	my $rmp = parse_random_map_params $exit->msg;	2674	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2676	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2677	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2678	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2679	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2680	$rmp->{origin_y} = $exit->y;
		2681
		2682	$exit->map->touch;
1908	}	2683	}
1909		2684
1910	$rmp->{random_seed} ||= $exit->random_seed;	2685	$rmp->{random_seed} ||= $exit->random_seed;
1911		2686
1912	my $data = cf::to_json $rmp;	2687	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2688	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2689	my $meta = "$RANDOMDIR/$md5.meta";
1915		2690
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2691	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2692	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2693	undef $fh;
1919	aio_rename "$meta~", $meta;	2694	aio_rename "$meta~", $meta;
1920		2695
		2696	my $slaying = "?random/$md5";
		2697
		2698	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2699	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2700	$exit->msg (undef);
		2701	}
1923	}	2702	}
1924	}	2703	}
1925		2704
1926	sub cf::object::player::enter_exit {	2705	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2706	my ($self, $exit) = @_;
1928		2707
1929	return unless $self->type == cf::PLAYER;	2708	return unless $self->type == cf::PLAYER;
1930		2709
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	2710	$self->enter_link;
1941		2711
1942	(async {	2712	(async {
1943	$self->deactivate_recursive; # just to be sure	2713	$Coro::current->{desc} = "enter_exit";
		2714
1944	unless (eval {	2715	unless (eval {
		2716	$self->deactivate_recursive; # just to be sure
		2717
		2718	# random map handling
		2719	{
		2720	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2721
		2722	prepare_random_map $exit
		2723	if $exit->slaying eq "/!";
		2724	}
		2725
		2726	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2727	my $x = $exit->stats->hp;
		2728	my $y = $exit->stats->sp;
		2729
1945	$self->goto ($slaying, $hp, $sp);	2730	$self->goto ($map, $x, $y);
1946		2731
		2732	# if exit is damned, update players death & WoR home-position
		2733	$self->contr->savebed ($map, $x, $y)
		2734	if $exit->flag (cf::FLAG_DAMNED);
		2735
1947	1;	2736	1
1948	}) {	2737	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2738	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2739	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2740	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2741	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2742
1954	warn "ERROR in enter_exit: $@";	2743	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2744	$self->leave_link;
1956	}	2745	}
1957	})->prio (1);	2746	})->prio (1);
…		…
1970		2759
1971	sub cf::client::send_drawinfo {	2760	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2761	my ($self, $text, $flags) = @_;
1973		2762
1974	utf8::encode $text;	2763	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2764	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2765	}
1977		2766
		2767	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2768
		2769	Send a drawinfo or msg packet to the client, formatting the msg for the
		2770	client if neccessary. C<$type> should be a string identifying the type of
		2771	the message, with C<log> being the default. If C<$color> is negative, suppress
		2772	the message unless the client supports the msg packet.
		2773
		2774	=cut
		2775
		2776	# non-persistent channels (usually the info channel)
		2777	our %CHANNEL = (
		2778	"c/identify" => {
		2779	id => "infobox",
		2780	title => "Identify",
		2781	reply => undef,
		2782	tooltip => "Items recently identified",
		2783	},
		2784	"c/examine" => {
		2785	id => "infobox",
		2786	title => "Examine",
		2787	reply => undef,
		2788	tooltip => "Signs and other items you examined",
		2789	},
		2790	"c/book" => {
		2791	id => "infobox",
		2792	title => "Book",
		2793	reply => undef,
		2794	tooltip => "The contents of a note or book",
		2795	},
		2796	"c/lookat" => {
		2797	id => "infobox",
		2798	title => "Look",
		2799	reply => undef,
		2800	tooltip => "What you saw there",
		2801	},
		2802	"c/who" => {
		2803	id => "infobox",
		2804	title => "Players",
		2805	reply => undef,
		2806	tooltip => "Shows players who are currently online",
		2807	},
		2808	"c/body" => {
		2809	id => "infobox",
		2810	title => "Body Parts",
		2811	reply => undef,
		2812	tooltip => "Shows which body parts you posess and are available",
		2813	},
		2814	"c/skills" => {
		2815	id => "infobox",
		2816	title => "Skills",
		2817	reply => undef,
		2818	tooltip => "Shows your experience per skill and item power",
		2819	},
		2820	"c/uptime" => {
		2821	id => "infobox",
		2822	title => "Uptime",
		2823	reply => undef,
		2824	tooltip => "How long the server has been running since last restart",
		2825	},
		2826	"c/mapinfo" => {
		2827	id => "infobox",
		2828	title => "Map Info",
		2829	reply => undef,
		2830	tooltip => "Information related to the maps",
		2831	},
		2832	"c/party" => {
		2833	id => "party",
		2834	title => "Party",
		2835	reply => "gsay ",
		2836	tooltip => "Messages and chat related to your party",
		2837	},
		2838	);
		2839
		2840	sub cf::client::send_msg {
		2841	my ($self, $channel, $msg, $color, @extra) = @_;
		2842
		2843	$msg = $self->pl->expand_cfpod ($msg)
		2844	unless $color & cf::NDI_VERBATIM;
		2845
		2846	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2847
		2848	# check predefined channels, for the benefit of C
		2849	if ($CHANNEL{$channel}) {
		2850	$channel = $CHANNEL{$channel};
		2851
		2852	$self->ext_msg (channel_info => $channel)
		2853	if $self->can_msg;
		2854
		2855	$channel = $channel->{id};
		2856
		2857	} elsif (ref $channel) {
		2858	# send meta info to client, if not yet sent
		2859	unless (exists $self->{channel}{$channel->{id}}) {
		2860	$self->{channel}{$channel->{id}} = $channel;
		2861	$self->ext_msg (channel_info => $channel)
		2862	if $self->can_msg;
		2863	}
		2864
		2865	$channel = $channel->{id};
		2866	}
		2867
		2868	return unless @extra || length $msg;
		2869
		2870	if ($self->can_msg) {
		2871	# default colour, mask it out
		2872	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2873	if $color & cf::NDI_DEF;
		2874
		2875	my $pkt = "msg "
		2876	. $self->{json_coder}->encode (
		2877	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2878	);
		2879
		2880	# try lzf for large packets
		2881	$pkt = "lzf " . Compress::LZF::compress $pkt
		2882	if 1024 <= length $pkt and $self->{can_lzf};
		2883
		2884	# split very large packets
		2885	if (8192 < length $pkt and $self->{can_lzf}) {
		2886	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2887	$pkt = "frag";
		2888	}
		2889
		2890	$self->send_packet ($pkt);
		2891	} else {
		2892	if ($color >= 0) {
		2893	# replace some tags by gcfclient-compatible ones
		2894	for ($msg) {
		2895	1 while
		2896	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2897	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2898	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2899	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2900	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2901	}
		2902
		2903	$color &= cf::NDI_COLOR_MASK;
		2904
		2905	utf8::encode $msg;
		2906
		2907	if (0 && $msg =~ /\[/) {
		2908	# COMMAND/INFO
		2909	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2910	} else {
		2911	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2912	$self->send_packet ("drawinfo $color $msg")
		2913	}
		2914	}
		2915	}
		2916	}
		2917
		2918	=item $client->ext_msg ($type, @msg)
		2919
		2920	Sends an ext event to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_msg($$@) {
		2925	my ($self, $type, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
		2930	push @msg, msgtype => "event_$type";
		2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
		2934
		2935	=item $client->ext_reply ($msgid, @msg)
		2936
		2937	Sends an ext reply to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_reply($$@) {
		2942	my ($self, $id, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2946	} elsif ($self->extcmd == 1) {
		2947	#TODO: version 1, remove
		2948	unshift @msg, msgtype => "reply", msgid => $id;
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2950	}
		2951	}
1978		2952
1979	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
1980		2954
1981	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2958
1985	Queries can fail, so check the return code. Or don't, as queries will become	2959	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2960	become reliable at some point in the future.
1987		2961
1988	=cut	2962	=cut
1989		2963
1990	sub cf::client::query {	2964	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2973	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2975
2002	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
2004	}	2980	}
2005		2981
2006	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
2007	on_reply => sub {	2988	on_reply => sub {
2008	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
2009		2990
2010	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
2011	# get handled first	2992	# get handled first
…		…
2023	} else {	3004	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3006	}
2026	}	3007	}
2027	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($ns, $buf) = @_;
		3011
		3012	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3013
		3014	if (ref $msg) {
		3015	my ($type, $reply, @payload) =
		3016	"ARRAY" eq ref $msg
		3017	? @$msg
		3018	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3019
		3020	my @reply;
		3021
		3022	if (my $cb = $EXTICMD{$type}) {
		3023	@reply = $cb->($ns, @payload);
		3024	}
		3025
		3026	$ns->ext_reply ($reply, @reply)
		3027	if $reply;
		3028
		3029	} else {
		3030	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3031	}
		3032
		3033	cf::override;
		3034	},
2028	);	3035	);
2029		3036
2030	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2031		3038
2032	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2075		3082
2076	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2077		3084
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
2079		3090
2080	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2081		3092
2082	=pod	3093	=pod
2083		3094
2084	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2085		3096
2086	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100
2087	cf::object::player player	3101	cf::object::player
2088	cf::player peaceful	3102	player
2089	cf::map trigger	3103
		3104	cf::player
		3105	peaceful
		3106
		3107	cf::map
		3108	trigger
2090		3109
2091	=cut	3110	=cut
2092		3111
2093	for (	3112	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3113	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3114	insert remove inv nrof name archname title slaying race
		3115	decrease split destroy change_exp)],
2095	["cf::object::player" => qw(player)],	3116	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3117	["cf::player" => qw(peaceful)],
2097	["cf::map" => qw(trigger)],	3118	["cf::map" => qw(trigger)],
2098	) {	3119	) {
2099	no strict 'refs';	3120	no strict 'refs';
…		…
2170	=back	3191	=back
2171		3192
2172	=cut	3193	=cut
2173		3194
2174	#############################################################################	3195	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	3196	# the server's init and main functions
2284		3197
		3198	sub load_facedata($) {
		3199	my ($path) = @_;
		3200
		3201	# HACK to clear player env face cache, we need some signal framework
		3202	# for this (global event?)
		3203	%ext::player_env::MUSIC_FACE_CACHE = ();
		3204
		3205	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3206
		3207	warn "loading facedata from $path\n";
		3208
		3209	my $facedata;
		3210	0 < aio_load $path, $facedata
		3211	or die "$path: $!";
		3212
		3213	$facedata = Coro::Storable::thaw $facedata;
		3214
		3215	$facedata->{version} == 2
		3216	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3217
		3218	# patch in the exptable
		3219	$facedata->{resource}{"res/exp_table"} = {
		3220	type => FT_RSRC,
		3221	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3222	};
		3223	cf::cede_to_tick;
		3224
		3225	{
		3226	my $faces = $facedata->{faceinfo};
		3227
		3228	while (my ($face, $info) = each %$faces) {
		3229	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3230
		3231	cf::face::set_visibility $idx, $info->{visibility};
		3232	cf::face::set_magicmap $idx, $info->{magicmap};
		3233	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3234	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3235
		3236	cf::cede_to_tick;
		3237	}
		3238
		3239	while (my ($face, $info) = each %$faces) {
		3240	next unless $info->{smooth};
		3241
		3242	my $idx = cf::face::find $face
		3243	or next;
		3244
		3245	if (my $smooth = cf::face::find $info->{smooth}) {
		3246	cf::face::set_smooth $idx, $smooth;
		3247	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3248	} else {
		3249	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3250	}
		3251
		3252	cf::cede_to_tick;
		3253	}
		3254	}
		3255
		3256	{
		3257	my $anims = $facedata->{animinfo};
		3258
		3259	while (my ($anim, $info) = each %$anims) {
		3260	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3261	cf::cede_to_tick;
		3262	}
		3263
		3264	cf::anim::invalidate_all; # d'oh
		3265	}
		3266
		3267	{
		3268	# TODO: for gcfclient pleasure, we should give resources
		3269	# that gcfclient doesn't grok a >10000 face index.
		3270	my $res = $facedata->{resource};
		3271
		3272	while (my ($name, $info) = each %$res) {
		3273	if (defined $info->{type}) {
		3274	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3275	my $data;
		3276
		3277	if ($info->{type} & 1) {
		3278	# prepend meta info
		3279
		3280	my $meta = $enc->encode ({
		3281	name => $name,
		3282	%{ $info->{meta} || {} },
		3283	});
		3284
		3285	$data = pack "(w/a*)*", $meta, $info->{data};
		3286	} else {
		3287	$data = $info->{data};
		3288	}
		3289
		3290	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3291	cf::face::set_type $idx, $info->{type};
		3292	} else {
		3293	$RESOURCE{$name} = $info;
		3294	}
		3295
		3296	cf::cede_to_tick;
		3297	}
		3298	}
		3299
		3300	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3301
		3302	1
		3303	}
		3304
		3305	cf::global->attach (on_resource_update => sub {
		3306	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3307	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3308
		3309	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3310	my $sound = $soundconf->{compat}[$_]
		3311	or next;
		3312
		3313	my $face = cf::face::find "sound/$sound->[1]";
		3314	cf::sound::set $sound->[0] => $face;
		3315	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3316	}
		3317
		3318	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3319	my $face = cf::face::find "sound/$v";
		3320	cf::sound::set $k => $face;
		3321	}
		3322	}
		3323	});
		3324
		3325	register_exticmd fx_want => sub {
		3326	my ($ns, $want) = @_;
		3327
		3328	while (my ($k, $v) = each %$want) {
		3329	$ns->fx_want ($k, $v);
		3330	}
		3331	};
		3332
2285	sub load_resources {	3333	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3334	my $guard = lock_acquire "load_resource_file";
		3335
		3336	my $status = load_resource_file_ $_[0];
		3337	get_slot 0.1, 100;
		3338	cf::arch::commit_load;
		3339
		3340	$status
		3341	}
		3342
		3343	sub reload_regions {
		3344	# HACK to clear player env face cache, we need some signal framework
		3345	# for this (global event?)
		3346	%ext::player_env::MUSIC_FACE_CACHE = ();
		3347
		3348	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3349	or die "unable to load regions file\n";
2288	}
2289		3350
2290	sub cfg_load {	3351	for (cf::region::list) {
		3352	$_->{match} = qr/$_->{match}/
		3353	if exists $_->{match};
		3354	}
		3355	}
		3356
		3357	sub reload_facedata {
		3358	load_facedata "$DATADIR/facedata"
		3359	or die "unable to load facedata\n";
		3360	}
		3361
		3362	sub reload_archetypes {
		3363	load_resource_file "$DATADIR/archetypes"
		3364	or die "unable to load archetypes\n";
		3365	}
		3366
		3367	sub reload_treasures {
		3368	load_resource_file "$DATADIR/treasures"
		3369	or die "unable to load treasurelists\n";
		3370	}
		3371
		3372	sub reload_resources {
		3373	warn "reloading resource files...\n";
		3374
		3375	reload_facedata;
		3376	reload_archetypes;
		3377	reload_regions;
		3378	reload_treasures;
		3379
		3380	warn "finished reloading resource files\n";
		3381	}
		3382
		3383	sub reload_config {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3384	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3385	or return;
2293		3386
2294	local $/;	3387	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3388	*CFG = YAML::Load <$fh>;
2296		3389
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3390	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2298		3391
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3392	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3393	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2306	};	3399	};
2307	warn $@ if $@;	3400	warn $@ if $@;
2308	}	3401	}
2309	}	3402	}
2310		3403
2311	sub init {	3404	sub pidfile() {
2312	load_resources;	3405	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3406	or die "$PIDFILE: $!";
		3407	flock $fh, &Fcntl::LOCK_EX
		3408	or die "$PIDFILE: flock: $!";
		3409	$fh
		3410	}
		3411
		3412	# make sure only one server instance is running at any one time
		3413	sub atomic {
		3414	my $fh = pidfile;
		3415
		3416	my $pid = <$fh>;
		3417	kill 9, $pid if $pid > 0;
		3418
		3419	seek $fh, 0, 0;
		3420	print $fh $$;
2313	}	3421	}
2314		3422
2315	sub main {	3423	sub main {
		3424	cf::init_globals; # initialise logging
		3425
		3426	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3427	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3428	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3429	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3430
		3431	cf::init_experience;
		3432	cf::init_anim;
		3433	cf::init_attackmess;
		3434	cf::init_dynamic;
		3435	cf::init_block;
		3436
		3437	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3438
2316	# we must not ever block the main coroutine	3439	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3440	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3441	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3442	(async {
2320	Event::one_event;	3443	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3444	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3445	})->prio (Coro::PRIO_MAX);
2322	};	3446	};
2323		3447
2324	cfg_load;	3448	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3449
		3450	cf::sync_job {
		3451	reload_resources;
		3452	reload_config;
		3453	db_init;
		3454
		3455	cf::load_settings;
		3456	cf::load_materials;
		3457	cf::init_uuid;
		3458	cf::init_signals;
		3459	cf::init_commands;
		3460	cf::init_skills;
		3461
		3462	cf::init_beforeplay;
		3463
		3464	atomic;
		3465
2326	load_extensions;	3466	load_extensions;
2327		3467
2328	$TICK_WATCHER->start;	3468	utime time, time, $RUNTIMEFILE;
		3469
		3470	# no (long-running) fork's whatsoever before this point(!)
		3471	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3472
		3473	(pop @POST_INIT)->(0) while @POST_INIT;
		3474	};
		3475
2329	Event::loop;	3476	EV::loop;
2330	}	3477	}
2331		3478
2332	#############################################################################	3479	#############################################################################
2333	# initialisation and cleanup	3480	# initialisation and cleanup
2334		3481
2335	# install some emergency cleanup handlers	3482	# install some emergency cleanup handlers
2336	BEGIN {	3483	BEGIN {
		3484	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3485	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3486	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3487	cf::cleanup "SIG$signal";
2345	},
2346	);	3488	};
		3489	}
		3490	}
		3491
		3492	sub write_runtime_sync {
		3493	# first touch the runtime file to show we are still running:
		3494	# the fsync below can take a very very long time.
		3495
		3496	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3497
		3498	my $guard = cf::lock_acquire "write_runtime";
		3499
		3500	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3501	or return;
		3502
		3503	my $value = $cf::RUNTIME + 90 + 10;
		3504	# 10 is the runtime save interval, for a monotonic clock
		3505	# 60 allows for the watchdog to kill the server.
		3506
		3507	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3508	and return;
		3509
		3510	# always fsync - this file is important
		3511	aio_fsync $fh
		3512	and return;
		3513
		3514	# touch it again to show we are up-to-date
		3515	aio_utime $fh, undef, undef;
		3516
		3517	close $fh
		3518	or return;
		3519
		3520	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3521	and return;
		3522
		3523	warn "runtime file written.\n";
		3524
2347	}	3525	1
		3526	}
		3527
		3528	our $uuid_lock;
		3529	our $uuid_skip;
		3530
		3531	sub write_uuid_sync($) {
		3532	$uuid_skip ||= $_[0];
		3533
		3534	return if $uuid_lock;
		3535	local $uuid_lock = 1;
		3536
		3537	my $uuid = "$LOCALDIR/uuid";
		3538
		3539	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3540	or return;
		3541
		3542	my $value = uuid_seq uuid_cur;
		3543
		3544	unless ($value) {
		3545	warn "cowardly refusing to write zero uuid value!\n";
		3546	return;
		3547	}
		3548
		3549	my $value = uuid_str $value + $uuid_skip;
		3550	$uuid_skip = 0;
		3551
		3552	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3553	and return;
		3554
		3555	# always fsync - this file is important
		3556	aio_fsync $fh
		3557	and return;
		3558
		3559	close $fh
		3560	or return;
		3561
		3562	aio_rename "$uuid~", $uuid
		3563	and return;
		3564
		3565	warn "uuid file written ($value).\n";
		3566
		3567	1
		3568
		3569	}
		3570
		3571	sub write_uuid($$) {
		3572	my ($skip, $sync) = @_;
		3573
		3574	$sync ? write_uuid_sync $skip
		3575	: async { write_uuid_sync $skip };
2348	}	3576	}
2349		3577
2350	sub emergency_save() {	3578	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3579	my $freeze_guard = cf::freeze_mainloop;
2352		3580
2353	warn "enter emergency perl save\n";	3581	warn "emergency_perl_save: enter\n";
2354		3582
2355	cf::sync_job {	3583	cf::sync_job {
		3584	# this is a trade-off: we want to be very quick here, so
		3585	# save all maps without fsync, and later call a global sync
		3586	# (which in turn might be very very slow)
		3587	local $USE_FSYNC = 0;
		3588
2356	# use a peculiar iteration method to avoid tripping on perl	3589	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3590	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3591	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3592	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3593	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3594	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3595	$pl->valid or next;
		3596	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3597	$pl->save;
2364	}	3598	}
2365	warn "end emergency player save\n";	3599	warn "emergency_perl_save: end player save\n";
2366		3600
2367	warn "begin emergency map save\n";	3601	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3602	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3603	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3604	$map->valid or next;
2371	$map->save;	3605	$map->save;
2372	}	3606	}
2373	warn "end emergency map save\n";	3607	warn "emergency_perl_save: end map save\n";
		3608
		3609	warn "emergency_perl_save: begin database checkpoint\n";
		3610	BDB::db_env_txn_checkpoint $DB_ENV;
		3611	warn "emergency_perl_save: end database checkpoint\n";
		3612
		3613	warn "emergency_perl_save: begin write uuid\n";
		3614	write_uuid_sync 1;
		3615	warn "emergency_perl_save: end write uuid\n";
2374	};	3616	};
2375		3617
		3618	warn "emergency_perl_save: starting sync()\n";
		3619	IO::AIO::aio_sync sub {
		3620	warn "emergency_perl_save: finished sync()\n";
		3621	};
		3622
2376	warn "leave emergency perl save\n";	3623	warn "emergency_perl_save: leave\n";
2377	}	3624	}
2378		3625
		3626	sub post_cleanup {
		3627	my ($make_core) = @_;
		3628
		3629	warn Carp::longmess "post_cleanup backtrace"
		3630	if $make_core;
		3631
		3632	my $fh = pidfile;
		3633	unlink $PIDFILE if <$fh> == $$;
		3634	}
		3635
		3636	# a safer delete_package, copied from Symbol
		3637	sub clear_package($) {
		3638	my $pkg = shift;
		3639
		3640	# expand to full symbol table name if needed
		3641	unless ($pkg =~ /^main::.*::$/) {
		3642	$pkg = "main$pkg" if $pkg =~ /^::/;
		3643	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3644	$pkg .= '::' unless $pkg =~ /::$/;
		3645	}
		3646
		3647	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3648	my $stem_symtab = *{$stem}{HASH};
		3649
		3650	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3651	or return;
		3652
		3653	# clear all symbols
		3654	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3655	for my $name (keys %$leaf_symtab) {
		3656	_gv_clear *{"$pkg$name"};
		3657	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3658	}
		3659	warn "cleared package $pkg\n";#d#
		3660	}
		3661
2379	sub reload() {	3662	sub do_reload_perl() {
2380	# can/must only be called in main	3663	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3664	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3665	warn "can only reload from main coroutine";
2383	return;	3666	return;
2384	}	3667	}
2385		3668
		3669	return if $RELOAD++;
		3670
		3671	my $t1 = EV::time;
		3672
		3673	while ($RELOAD) {
2386	warn "reloading...";	3674	warn "reloading...";
2387		3675
2388	warn "cancelling server ticker";	3676	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3677
		3678	cf::sync_job {
		3679	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3680	cf::emergency_save;
		3681	cf::write_runtime_sync; # external watchdog should not bark
2392		3682
2393	eval {	3683	warn "syncing database to disk";
		3684	BDB::db_env_txn_checkpoint $DB_ENV;
		3685
2394	# if anything goes wrong in here, we should simply crash as we already saved	3686	# if anything goes wrong in here, we should simply crash as we already saved
2395		3687
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403
2404	warn "flushing outstanding aio requests";	3688	warn "flushing outstanding aio requests";
2405	for (;;) {	3689	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3690	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2407	Coro::cede;
2408	last unless IO::AIO::nreqs;
2409	warn "iterate...";
2410	}
2411
2412	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();
2415
2416	warn "removing commands";
2417	%COMMAND = ();
2418
2419	warn "removing ext commands";
2420	%EXTCMD = ();
2421
2422	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";
2425
2426	if (my $cb = $pkg->can ("unload")) {
2427	eval {
2428	$cb->($pkg);
2429	1
2430	} or warn "$pkg unloaded, but with errors: $@";
2431	}	3691	}
2432		3692
2433	warn "... nuking $pkg";	3693	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3694	$_->cancel for values %EXT_CORO;
2435	}	3695	%EXT_CORO = ();
2436		3696
2437	warn "unloading all perl modules loaded from $LIBDIR";	3697	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3698	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3699
		3700	warn "removing ext/exti commands";
		3701	%EXTCMD = ();
		3702	%EXTICMD = ();
		3703
		3704	warn "unloading/nuking all extensions";
		3705	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3706	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3707
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3708	if (my $cb = $pkg->can ("unload")) {
		3709	eval {
2448	$cb->();	3710	$cb->($pkg);
		3711	1
		3712	} or warn "$pkg unloaded, but with errors: $@";
		3713	}
		3714
		3715	warn "... clearing $pkg";
		3716	clear_package $pkg;
2449	}	3717	}
2450		3718
2451	Symbol::delete_package $k;	3719	warn "unloading all perl modules loaded from $LIBDIR";
		3720	while (my ($k, $v) = each %INC) {
		3721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3722
		3723	warn "... unloading $k";
		3724	delete $INC{$k};
		3725
		3726	$k =~ s/\.pm$//;
		3727	$k =~ s/\//::/g;
		3728
		3729	if (my $cb = $k->can ("unload_module")) {
		3730	$cb->();
		3731	}
		3732
		3733	clear_package $k;
2452	}	3734	}
2453		3735
2454	warn "getting rid of safe::, as good as possible";	3736	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3737	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3739
2458	warn "unloading cf.pm \"a bit\"";	3740	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3741	delete $INC{"cf.pm"};
		3742	delete $INC{"cf/pod.pm"};
2460		3743
2461	# don't, removes xs symbols, too,	3744	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3745	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3746	#clear_package __PACKAGE__;
2464		3747
2465	warn "unload completed, starting to reload now";	3748	warn "unload completed, starting to reload now";
2466		3749
2467	warn "reloading cf.pm";	3750	warn "reloading cf.pm";
2468	require cf;	3751	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		3753
2471	warn "loading config and database again";	3754	warn "loading config and database again";
2472	cf::cfg_load;	3755	cf::reload_config;
2473	cf::db_load;
2474		3756
2475	warn "loading extensions";	3757	warn "loading extensions";
2476	cf::load_extensions;	3758	cf::load_extensions;
2477		3759
		3760	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3761	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3762	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3763	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3764	reattach $_ for values %MAP;
		3765	warn "reattaching attachments to players";
		3766	reattach $_ for values %PLAYER;
		3767	}
2482		3768
2483	warn "loading reloadable resources";	3769	warn "running post_init jobs";
2484	load_resources;	3770	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3771
2486	warn "restarting server ticker";	3772	warn "leaving sync_job";
2487		3773
2488	$TICK_WATCHER->start;	3774	1
		3775	} or do {
		3776	warn $@;
		3777	cf::cleanup "error while reloading, exiting.";
		3778	};
		3779
		3780	warn "reloaded";
		3781	--$RELOAD;
		3782	}
		3783
		3784	$t1 = EV::time - $t1;
		3785	warn "reload completed in ${t1}s\n";
		3786	};
		3787
		3788	our $RELOAD_WATCHER; # used only during reload
		3789
		3790	sub reload_perl() {
		3791	# doing reload synchronously and two reloads happen back-to-back,
		3792	# coro crashes during coro_state_free->destroy here.
		3793
		3794	$RELOAD_WATCHER ||= cf::async {
		3795	Coro::AIO::aio_wait cache_extensions;
		3796
		3797	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3798	do_reload_perl;
		3799	undef $RELOAD_WATCHER;
		3800	};
2489	};	3801	};
2490		3802	}
2491	if ($@) {
2492	warn $@;
2493	warn "error while reloading, exiting.";
2494	exit 1;
2495	}
2496
2497	warn "reloaded";
2498	};
2499
2500	our $RELOAD_WATCHER; # used only during reload
2501		3803
2502	register_command "reload" => sub {	3804	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3805	my ($who, $arg) = @_;
2504		3806
2505	if ($who->flag (FLAG_WIZ)) {	3807	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3808	$who->message ("reloading server.");
2507		3809	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3810	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	3811	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3812	};
2520	}	3813	}
2521	};	3814	};
2522		3815
2523	unshift @INC, $LIBDIR;	3816	unshift @INC, $LIBDIR;
2524		3817
2525	my $bug_warning = 0;	3818	my $bug_warning = 0;
2526		3819
2527	$TICK_WATCHER = Event->timer (	3820	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3821	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3822
2530	prio => 0,	3823	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3824	return if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3825
2533	cb => sub {	3826	my $signal = new Coro::Signal;
		3827	push @WAIT_FOR_TICK, $signal;
		3828	$signal->wait;
		3829	}
		3830
		3831	sub wait_for_tick_begin {
		3832	return if tick_inhibit || $Coro::current == $Coro::main;
		3833
		3834	my $signal = new Coro::Signal;
		3835	push @WAIT_FOR_TICK_BEGIN, $signal;
		3836	$signal->wait;
		3837	}
		3838
		3839	sub tick {
2534	if ($Coro::current != $Coro::main) {	3840	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3841	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3842	unless ++$bug_warning > 10;
2537	return;	3843	return;
2538	}	3844	}
2539		3845
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	3846	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		3847
2546	$WAIT_FOR_TICK->broadcast;	3848	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3849	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3850	Coro::async_pool {
		3851	$Coro::current->{desc} = "runtime saver";
		3852	write_runtime_sync
		3853	or warn "ERROR: unable to write runtime file: $!";
		3854	};
		3855	}
2548		3856
2549	Event::sweep;	3857	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2550	Coro::cede_notself;	3858	$sig->send;
		3859	}
		3860	while (my $sig = shift @WAIT_FOR_TICK) {
		3861	$sig->send;
		3862	}
		3863
		3864	$LOAD = ($NOW - $TICK_START) / $TICK;
		3865	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3866
		3867	if (0) {
		3868	if ($NEXT_TICK) {
		3869	my $jitter = $TICK_START - $NEXT_TICK;
		3870	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3871	warn "jitter $JITTER\n";#d#
2551		3872	}
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	3873	}
2561	);	3874	}
2562		3875
2563	{	3876	{
2564	BDB::max_poll_time $TICK * 0.1;	3877	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	3878
2566	reentrant => 0,
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	3879	BDB::min_parallel 8;
2574		3880	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	3881	$AnyEvent::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		3882
2590	unless ($DB_ENV) {	3883	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3884	$DB_ENV = BDB::db_env_create;
		3885	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3886	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3887	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3888	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3889	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		3890
2593	cf::sync_job {	3891	cf::sync_job {
		3892	eval {
2594	BDB::db_env_open	3893	BDB::db_env_open
2595	$DB_ENV,	3894	$DB_ENV,
2596	$BDB_ENV_DIR,	3895	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3898	0666;
2600		3899
2601	cf::cleanup "$!" if $!;	3900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3901	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3902
2604	$DB_ENV->set_lk_detect;	3903	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3904	};
2606	}	3905	}
		3906
		3907	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3908	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3909	};
		3910	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3911	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3912	};
		3913	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3914	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3915	};
2607	}	3916	}
2608		3917
2609	{	3918	{
		3919	# configure IO::AIO
		3920
2610	IO::AIO::min_parallel 8;	3921	IO::AIO::min_parallel 8;
2611
2612	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3922	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3923	undef $AnyEvent::AIO::WATCHER;
2615	reentrant => 0,
2616	fd => IO::AIO::poll_fileno,
2617	poll => 'r',
2618	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,
2621	);
2622	}	3924	}
2623		3925
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3926	my $_log_backtrace;
2625	reentrant => 0,	3927
2626	data => WF_AUTOCANCEL,	3928	sub _log_backtrace {
2627	after => 1,	3929	my ($msg, @addr) = @_;
2628	interval => 10,	3930
2629	prio => 6, # keep it lowest so it acts like a watchdog	3931	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3932
2631	write_runtime	3933	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3934	if ($_log_backtrace < 2) {
		3935	++$_log_backtrace;
		3936	my $perl_bt = Carp::longmess $msg;
		3937	async {
		3938	$Coro::current->{desc} = "abt $msg";
		3939
		3940	my @bt = fork_call {
		3941	@addr = map { sprintf "%x", $_ } @addr;
		3942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3944	or die "addr2line: $!";
		3945
		3946	my @funcs;
		3947	my @res = <$fh>;
		3948	chomp for @res;
		3949	while (@res) {
		3950	my ($func, $line) = splice @res, 0, 2, ();
		3951	push @funcs, "[$func] $line";
		3952	}
		3953
		3954	@funcs
		3955	};
		3956
		3957	LOG llevInfo, "[ABT] $perl_bt\n";
		3958	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3959	LOG llevInfo, "[ABT] $_\n" for @bt;
		3960	--$_log_backtrace;
		3961	};
		3962	} else {
		3963	LOG llevInfo, "[ABT] $msg\n";
		3964	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3965	}
2634	);	3966	}
		3967
		3968	# load additional modules
		3969	use cf::pod;
2635		3970
2636	END { cf::emergency_save }	3971	END { cf::emergency_save }
2637		3972
2638	1	3973	1
2639		3974

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