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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.481 by root, Sun Oct 11 00:24:35 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
		93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
59		95
60	our $CONFDIR = confdir;	96	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	97	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	98	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	99	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	100	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	101	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	105	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
71		111
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	114	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	119	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod match mapscript);
82		123
83	our %CFG;	124	our %CFG;
84		125
85	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
87		129
88	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
91		133
92	# used to convert map paths into valid unix filenames by replacing / by ∕	134	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
		146
95	binmode STDOUT;	147	binmode STDOUT;
96	binmode STDERR;	148	binmode STDERR;
97		149
98	# read virtual server time, if available	150	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	152	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
103	}	155	}
		156
		157	eval "sub TICK() { $TICK } 1" or die;
104		158
105	mkdir $_	159	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		161
108	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
109		163
110	sub cf::map::normalise;	164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
		173
		174	# this is decidedly evil
		175	$REFLECT{object}{flags} = { map $_ => undef, grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
111		176
112	#############################################################################	177	#############################################################################
113		178
114	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
115		180
…		…
139		204
140	=item $cf::TICK	205	=item $cf::TICK
141		206
142	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
143		208
		209	=item $cf::LOADAVG
		210
		211	The current CPU load on the server (alpha-smoothed), as a value between 0
		212	(none) and 1 (overloaded), indicating how much time is spent on processing
		213	objects per tick. Healthy values are < 0.5.
		214
		215	=item $cf::LOAD
		216
		217	The raw value load value from the last tick.
		218
144	=item %cf::CFG	219	=item %cf::CFG
145		220
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	222	from wherever your confdir points to.
148		223
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	224	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		225
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	226	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	227	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	228	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		229
		230	=item @cf::INVOKE_RESULTS
		231
		232	This array contains the results of the last C<invoke ()> call. When
		233	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		234	that call.
		235
		236	=item %cf::REFLECT
		237
		238	Contains, for each (C++) class name, a hash reference with information
		239	about object members (methods, scalars, arrays and flags) and other
		240	metadata, which is useful for introspection.
		241
155	=back	242	=back
156		243
157	=cut	244	=cut
158		245
159	BEGIN {	246	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	247	my $msg = join "", @_;
162		248
163	$msg .= "\n"	249	$msg .= "\n"
164	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
165		251
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		253
168	utf8::encode $msg;
169	LOG llevError, $msg;	254	LOG llevError, $msg;
170	};	255	};
171	}	256
		257	$Coro::State::DIEHOOK = sub {
		258	return unless $^S eq 0; # "eq", not "=="
		259
		260	warn Carp::longmess $_[0];
		261
		262	if ($Coro::current == $Coro::main) {#d#
		263	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		264	return;#d#
		265	}#d#
		266
		267	# kill coroutine otherwise
		268	Coro::terminate
		269	};
172		270
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	275	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		276	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	277	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		278
180	# we bless all objects into (empty) derived classes to force a method lookup	279	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	280	# within the Safe compartment.
182	for my $pkg (qw(	281	for my $pkg (qw(
183	cf::global cf::attachable	282	cf::global cf::attachable
184	cf::object cf::object::player	283	cf::object cf::object::player
185	cf::client cf::player	284	cf::client cf::player
186	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
187	cf::map cf::party cf::region	287	cf::party cf::region
188	)) {	288	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	290	}
192		291
193	$Event::DIED = sub {	292	$EV::DIED = sub {
194	warn "error in event callback: @_";	293	warn "error in event callback: @_";
195	};	294	};
		295
		296	#############################################################################
196		297
197	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
198		299
199	=over 4	300	=over 4
200		301
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	320	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	321	$d
221	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
222	}	323	}
223		324
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
227		326
228	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
229		328
230	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
231		330
232	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
233		332
		333	=cut
		334
		335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		336
		337	sub encode_json($) { $json_coder->encode ($_[0]) }
		338	sub decode_json($) { $json_coder->decode ($_[0]) }
		339
		340	=item cf::post_init { BLOCK }
		341
		342	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		343	but I<before> the server starts ticking again.
		344
		345	The cdoeblock will have a single boolean argument to indicate whether this
		346	is a reload or not.
		347
		348	=cut
		349
		350	sub post_init(&) {
		351	push @POST_INIT, shift;
		352	}
		353
234	=item cf::lock_wait $string	354	=item cf::lock_wait $string
235		355
236	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
237		357
238	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
239		359
240	Wait until the given lock is available and then acquires it and returns	360	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	361	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
243	returned.	363	returned.
244		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
245	Lock names should begin with a unique identifier (for example, cf::map::find	368	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
247		370
248	=item $locked = cf::lock_active $string	371	=item $locked = cf::lock_active $string
249		372
250	Return true if the lock is currently active, i.e. somebody has locked it.	373	Return true if the lock is currently active, i.e. somebody has locked it.
251		374
252	=cut	375	=cut
253		376
254	our %LOCK;	377	our $LOCKS = new Coro::SemaphoreSet;
255		378
256	sub lock_wait($) {	379	sub lock_wait($) {
257	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	381	}
265		382
266	sub lock_acquire($) {	383	sub lock_acquire($) {
267	my ($key) = @_;	384	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	385	}
279		386
280	sub lock_active($) {	387	sub lock_active($) {
281	my ($key) = @_;	388	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	389	}
285		390
286	sub freeze_mainloop {	391	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
288		393
289	my $guard = Coro::guard {	394	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	395	}
		396
		397	=item cf::periodic $interval, $cb
		398
		399	Like EV::periodic, but randomly selects a starting point so that the actions
		400	get spread over timer.
		401
		402	=cut
		403
		404	sub periodic($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
291	};	455	}
292	$TICK_WATCHER->stop;	456	};
293	$guard	457
		458	sub get_slot($;$$) {
		459	return if tick_inhibit || $Coro::current == $Coro::main;
		460
		461	my ($time, $pri, $name) = @_;
		462
		463	$time = $TICK * .6 if $time > $TICK * .6;
		464	my $sig = new Coro::Signal;
		465
		466	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		467	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		468	$SLOT_QUEUE->ready;
		469	$sig->wait;
294	}	470	}
295		471
296	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
297		473
298	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		479
304	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
305		481
306	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
307		483
308	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
311		488
312	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
315	fast or be very important.	492	fast or be very important.
…		…
318		495
319	sub sync_job(&) {	496	sub sync_job(&) {
320	my ($job) = @_;	497	my ($job) = @_;
321		498
322	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
323	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
325		504
326	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	506
328	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
329		508
330	my $busy = 1;	509	my $busy = 1;
331	my @res;	510	my @res;
332		511
333	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	514	@res = eval { $job->() };
335	warn $@ if $@;	515	warn $@ if $@;
336	undef $busy;	516	undef $busy;
337	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
338		518
339	while ($busy) {	519	while ($busy) {
340	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
341	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
342		530
343	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
344	} else {	532	} else {
345	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
346		534
…		…
366	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
367		555
368	$coro	556	$coro
369	}	557	}
370		558
371	sub write_runtime {	559	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		560
374	my $runtime = "$LOCALDIR/runtime";	561	Executes the given code block with the given arguments in a seperate
		562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
375		565
376	warn "starting to write runtime...\n";#d#	566	=cut
377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
378	or return;
379		567
380	my $value = $cf::RUNTIME + 90 + 10;	568	sub fork_call(&@) {
381	# 10 is the runtime save interval, for a monotonic clock	569	my ($cb, @args) = @_;
382	# 60 allows for the watchdog to kill the server.
383		570
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0	571	# we seemingly have to make a local copy of the whole thing,
385	and return;	572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
386		574
387	# always fsync - this file is important	575	my @res = Coro::Util::fork_eval {
388	aio_fsync $fh	576	reset_signals;
389	and return;	577	&$cb
		578	}, @args;
390		579
391	close $fh	580	wantarray ? @res : $res[-1]
392	or return;	581	}
393		582
394	aio_rename "$runtime~", $runtime	583	=item $coin = coin_from_name $name
395	and return;
396		584
397	warn "... done writing runtime.\n";#d#	585	=cut
398		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
399	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		663	BDB::dbreq_pri 4;
		664	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		665	}
		666
		667	=item cf::cache $id => [$paths...], $processversion => $process
		668
		669	Generic caching function that returns the value of the resource $id,
		670	caching and regenerating as required.
		671
		672	This function can block.
		673
		674	=cut
		675
		676	sub cache {
		677	my ($id, $src, $processversion, $process) = @_;
		678
		679	my $meta =
		680	join "\x00",
		681	$processversion,
		682	map {
		683	aio_stat $_
		684	and Carp::croak "$_: $!";
		685
		686	($_, (stat _)[7,9])
		687	} @$src;
		688
		689	my $dbmeta = db_get cache => "$id/meta";
		690	if ($dbmeta ne $meta) {
		691	# changed, we may need to process
		692
		693	my @data;
		694	my $md5;
		695
		696	for (0 .. $#$src) {
		697	0 <= aio_load $src->[$_], $data[$_]
		698	or Carp::croak "$src->[$_]: $!";
		699	}
		700
		701	# if processing is expensive, check
		702	# checksum first
		703	if (1) {
		704	$md5 =
		705	join "\x00",
		706	$processversion,
		707	map {
		708	cf::cede_to_tick;
		709	($src->[$_], Digest::MD5::md5_hex $data[$_])
		710	} 0.. $#$src;
		711
		712
		713	my $dbmd5 = db_get cache => "$id/md5";
		714	if ($dbmd5 eq $md5) {
		715	db_put cache => "$id/meta", $meta;
		716
		717	return db_get cache => "$id/data";
		718	}
		719	}
		720
		721	my $t1 = Time::HiRes::time;
		722	my $data = $process->(\@data);
		723	my $t2 = Time::HiRes::time;
		724
		725	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		726
		727	db_put cache => "$id/data", $data;
		728	db_put cache => "$id/md5" , $md5;
		729	db_put cache => "$id/meta", $meta;
		730
		731	return $data;
		732	}
		733
		734	db_get cache => "$id/data"
400	}	735	}
401		736
402	=item cf::datalog type => key => value, ...	737	=item cf::datalog type => key => value, ...
403		738
404	Log a datalog packet of the given type with the given key-value pairs.	739	Log a datalog packet of the given type with the given key-value pairs.
…		…
416		751
417	#############################################################################	752	#############################################################################
418		753
419	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
420		755
421	Many objects in crossfire are so-called attachable objects. That means you can	756	Many objects in deliantra are so-called attachable objects. That means you can
422	attach callbacks/event handlers (a collection of which is called an "attachment")	757	attach callbacks/event handlers (a collection of which is called an "attachment")
423	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
424		759
425	In the following description, CLASS can be any of C<global>, C<object>	760	In the following description, CLASS can be any of C<global>, C<object>
426	C<player>, C<client> or C<map> (i.e. the attachable objects in	761	C<player>, C<client> or C<map> (i.e. the attachable objects in
427	crossfire+).	762	Deliantra).
428		763
429	=over 4	764	=over 4
430		765
431	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
432		767
…		…
476	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
477		812
478	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
479	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
480		815
481	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
482	that are attached at load/instantiate time, thus the need for a name.	817	that are attached at load/instantiate time, thus the need for a name.
483		818
484	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
485		820
486	=over 4	821	=over 4
…		…
595	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
596		931
597	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
601		936
602	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	938	my $pkg = shift @arg;
604		939
605	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
635	}	970	}
636		971
637	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
638	} else {	973	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	975	}
641		976
642	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
643	}	978	}
644		979
…		…
646	if (ref $_[0]) {	981	if (ref $_[0]) {
647	_object_attach @_;	982	_object_attach @_;
648	} else {	983	} else {
649	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
650	}	985	}
		986	_recalc_want;
651	};	987	};
652		988
653	# all those should be optimised	989	# all those should be optimised
654	sub cf::attachable::detach {	990	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
659	reattach ($obj);	995	reattach ($obj);
660	} else {	996	} else {
661	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
662	}	998	}
		999	_recalc_want;
663	};	1000	};
664		1001
665	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
667		1004
…		…
682	";	1019	";
683	die if $@;	1020	die if $@;
684	}	1021	}
685		1022
686	our $override;	1023	our $override;
687	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1024	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
688		1025
689	sub override {	1026	sub override {
690	$override = 1;	1027	$override = 1;
691	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
692	}	1029	}
693		1030
694	sub do_invoke {	1031	sub do_invoke {
695	my $event = shift;	1032	my $event = shift;
696	my $callbacks = shift;	1033	my $callbacks = shift;
697		1034
698	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
699		1036
700	local $override;	1037	local $override;
701		1038
702	for (@$callbacks) {	1039	for (@$callbacks) {
703	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
712	}	1049	}
713		1050
714	0	1051	0
715	}	1052	}
716		1053
717	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
718		1055
719	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
720		1057
721	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
722		1059
723	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1060	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
724	removed in future versions), and there is no public API to access override	1061	removed in future versions), and there is no public API to access override
725	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
726		1063
727	=back	1064	=back
728		1065
729	=cut	1066	=cut
730		1067
731	#############################################################################	1068	#############################################################################
732	# object support	1069	# object support
		1070
		1071	sub _object_equal($$);
		1072	sub _object_equal($$) {
		1073	my ($a, $b) = @_;
		1074
		1075	return 0 unless (ref $a) eq (ref $b);
		1076
		1077	if ("HASH" eq ref $a) {
		1078	my @ka = keys %$a;
		1079	my @kb = keys %$b;
		1080
		1081	return 0 if @ka != @kb;
		1082
		1083	for (0 .. $#ka) {
		1084	return 0 unless $ka[$_] eq $kb[$_];
		1085	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1086	}
		1087
		1088	} elsif ("ARRAY" eq ref $a) {
		1089
		1090	return 0 if @$a != @$b;
		1091
		1092	for (0 .. $#$a) {
		1093	return 0 unless _object_equal $a->[$_], $b->[$_];
		1094	}
		1095
		1096	} elsif ($a ne $b) {
		1097	return 0;
		1098	}
		1099
		1100	1
		1101	}
		1102
		1103	our $SLOW_MERGES;#d#
		1104	sub _can_merge {
		1105	my ($ob1, $ob2) = @_;
		1106
		1107	++$SLOW_MERGES;#d#
		1108
		1109	# we do the slow way here
		1110	return _object_equal $ob1, $ob2
		1111	}
733		1112
734	sub reattach {	1113	sub reattach {
735	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
736	my ($obj) = @_;	1115	my ($obj) = @_;
737		1116
		1117	# no longer needed after getting rid of delete_package?
738	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
739		1119
740	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
741		1121
742	@$registry = ();	1122	@$registry = ();
743		1123
…		…
758	cf::attachable->attach (	1138	cf::attachable->attach (
759	prio => -1000000,	1139	prio => -1000000,
760	on_instantiate => sub {	1140	on_instantiate => sub {
761	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
762		1142
763	$data = from_json $data;	1143	$data = decode_json $data;
764		1144
765	for (@$data) {	1145	for (@$data) {
766	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
767		1147
768	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
784	sub object_freezer_save {	1164	sub object_freezer_save {
785	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
786		1166
787	sync_job {	1167	sync_job {
788	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
789	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
790	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
791		1172
792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
793	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
795	aio_fsync $fh if $cf::USE_FSYNC;	1176	if ($cf::USE_FSYNC) {
		1177	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1178	aio_fsync $fh;
		1179	}
796	close $fh;	1180	aio_close $fh;
797		1181
798	if (@$objs) {	1182	if (@$objs) {
799	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1183	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
800	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
801	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
802	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
803	aio_fsync $fh if $cf::USE_FSYNC;	1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1189	aio_fsync $fh;
		1190	}
804	close $fh;	1191	aio_close $fh;
805	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
806	}	1193	}
807	} else {	1194	} else {
808	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
809	}	1196	}
810		1197
811	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
812	} else {	1202	} else {
813	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
814	}	1204	}
815	} else {	1205	} else {
816	aio_unlink $filename;	1206	aio_unlink $filename;
817	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
818	}	1208	}
819	}	1209	};
820	}	1210	}
821		1211
822	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
823	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
824		1214
…		…
836	or return;	1226	or return;
837		1227
838	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
839	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
840	or return;	1230	or return;
		1231
841	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
842	}	1234	}
843		1235
		1236	utf8::decode (my $decname = $filename);
844	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
845	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
846	return ($data, $av);	1240	($data, $av)
847	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
848		1248
849	#############################################################################	1249	#############################################################################
850	# command handling &c	1250	# command handling &c
851		1251
852	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1266	}
867		1267
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1269
870	Register a callbackf ro execution when the client sends an extcmd packet.	1270	Register a callback for execution when the client sends an (synchronous)
		1271	extcmd packet. Ext commands will be processed in the order they are
		1272	received by the server, like other user commands. The first argument is
		1273	the logged-in player. Ext commands can only be processed after a player
		1274	has logged in successfully.
871		1275
872	If the callback returns something, it is sent back as if reply was being	1276	If the callback returns something, it is sent back as if reply was being
873	called.	1277	called.
874		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
875	=cut	1290	=cut
876		1291
877	sub register_extcmd {	1292	sub register_extcmd {
878	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
879		1294
880	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
881	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
882		1305
883	cf::player->attach (	1306	cf::player->attach (
884	on_command => sub {	1307	on_command => sub {
885	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
886		1309
…		…
894	cf::override;	1317	cf::override;
895	},	1318	},
896	on_extcmd => sub {	1319	on_extcmd => sub {
897	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
898		1321
899	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
900		1323
901	if (ref $msg) {	1324	if (ref $msg) {
		1325	my ($type, $reply, @payload) =
		1326	"ARRAY" eq ref $msg
		1327	? @$msg
		1328	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1329
		1330	my @reply;
		1331
902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
903	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
904	$pl->ext_reply ($msg->{msgid}, %reply);
905	}
906	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
907	} else {	1339	} else {
908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
909	}	1341	}
910		1342
911	cf::override;	1343	cf::override;
912	},	1344	},
913	);	1345	);
914		1346
		1347	# "readahead" all extensions
915	sub load_extension {	1348	sub cache_extensions {
916	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
917		1350
918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
919	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
920	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
921	$pkg =~ s/[^[:word:]]/_/g;
922	$pkg = "ext::$pkg";
923
924	warn "... loading '$path' into '$pkg'\n";
925
926	open my $fh, "<:utf8", $path
927	or die "$path: $!";
928
929	my $source =
930	"package $pkg; use strict; use utf8;\n"
931	. "#line 1 \"$path\"\n{\n"
932	. (do { local $/; <$fh> })
933	. "\n};\n1";
934
935	unless (eval $source) {
936	my $msg = $@ ? "$path: $@\n"
937	: "extension disabled.\n";
938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
939	warn $@;
940	warn "mandatory extension failed to load, exiting.\n";
941	exit 1;
942	}	1354	}
943	die $@;
944	}	1355	};
945		1356
946	push @EXTS, $pkg;	1357	$grp
947	}	1358	}
948		1359
949	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
950	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1365	next unless -r $path;
952	eval {	1366
953	load_extension $ext;	1367	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1368	my $base = $1;
		1369	my $pkg = $1;
		1370	$pkg =~ s/[^[:word:]]/_/g;
		1371	$pkg = "ext::$pkg";
		1372
		1373	open my $fh, "<:utf8", $path
		1374	or die "$path: $!";
		1375
		1376	my $source = do { local $/; <$fh> };
		1377
		1378	my %ext = (
		1379	path => $path,
		1380	base => $base,
		1381	pkg => $pkg,
		1382	);
		1383
		1384	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1385	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1386
		1387	$ext{source} =
		1388	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1389	. "#line 1 \"$path\"\n{\n"
		1390	. $source
		1391	. "\n};\n1";
		1392
		1393	$todo{$base} = \%ext;
		1394	}
		1395
		1396	my %done;
		1397	while (%todo) {
		1398	my $progress;
		1399
		1400	while (my ($k, $v) = each %todo) {
		1401	for (split /,\s*/, $v->{meta}{depends}) {
		1402	goto skip
		1403	unless exists $done{$_};
		1404	}
		1405
		1406	warn "... loading '$k' into '$v->{pkg}'\n";
		1407
		1408	unless (eval $v->{source}) {
		1409	my $msg = $@ ? "$v->{path}: $@\n"
		1410	: "$v->{base}: extension inactive.\n";
		1411
		1412	if (exists $v->{meta}{mandatory}) {
		1413	warn $msg;
		1414	cf::cleanup "mandatory extension failed to load, exiting.";
		1415	}
		1416
		1417	warn $msg;
		1418	}
		1419
		1420	$done{$k} = delete $todo{$k};
		1421	push @EXTS, $v->{pkg};
		1422	$progress = 1;
954	1	1423	}
955	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
956	}	1429	};
957	}	1430	}
958		1431
959	#############################################################################	1432	#############################################################################
960		1433
		1434	=back
		1435
961	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
962		1437
963	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
964		1439
965	=cut	1440	=cut
966		1441
967	package cf::player;	1442	package cf::player;
968		1443
969	use Coro::AIO;	1444	use Coro::AIO;
970		1445
971	=head3 cf::player	1446	=head3 cf::player
972		1447
973	=over 4	1448	=over 4
		1449
		1450	=item cf::player::num_playing
		1451
		1452	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1453
		1454	=cut
		1455
		1456	sub num_playing {
		1457	scalar grep
		1458	$_->ob->map
		1459	&& !$_->hidden
		1460	&& !$_->ob->flag (cf::FLAG_WIZ),
		1461	cf::player::list
		1462	}
974		1463
975	=item cf::player::find $login	1464	=item cf::player::find $login
976		1465
977	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
978		1467
…		…
997		1486
998	sub exists($) {	1487	sub exists($) {
999	my ($login) = @_;	1488	my ($login) = @_;
1000		1489
1001	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
1002	or cf::sync_job { !aio_stat path $login }	1491	or !aio_stat path $login
1003	}	1492	}
1004		1493
1005	sub find($) {	1494	sub find($) {
1006	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
1007	my $login = $_[0];	1496	my $login = $_[0];
…		…
1014	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1503	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1015	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1504	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1016	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1505	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1017	aio_unlink +(playerdir $login) . "/$login.pl";	1506	aio_unlink +(playerdir $login) . "/$login.pl";
1018		1507
1019	my $pl = load_pl path $login	1508	my $f = new_from_file cf::object::thawer path $login
1020	or return;	1509	or return;
		1510
		1511	my $pl = cf::player::load_pl $f
		1512	or return;
		1513
		1514	local $cf::PLAYER_LOADING{$login} = $pl;
		1515	$f->resolve_delayed_derefs;
1021	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
1022	}	1517	}
1023	}	1518	}
1024	}	1519	}
1025		1520
…		…
1034	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
1035		1530
1036	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
1037	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
1038		1533
		1534	cf::get_slot 0.01;
		1535
1039	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
1040	Coro::cede;	1537	cf::cede_to_tick;
1041	}	1538	}
1042		1539
1043	sub new($) {	1540	sub new($) {
1044	my ($login) = @_;	1541	my ($login) = @_;
1045		1542
…		…
1051	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1052		1549
1053	$self	1550	$self
1054	}	1551	}
1055		1552
		1553	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1554
		1555	=cut
		1556
		1557	sub send_msg {
		1558	my $ns = shift->ns
		1559	or return;
		1560	$ns->send_msg (@_);
		1561	}
		1562
1056	=item $pl->quit_character	1563	=item $pl->quit_character
1057		1564
1058	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1059	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1060		1567
…		…
1064	my ($pl) = @_;	1571	my ($pl) = @_;
1065		1572
1066	my $name = $pl->ob->name;	1573	my $name = $pl->ob->name;
1067		1574
1068	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1069	$pl->password ("*"); # this should lock out the player until we nuked the dir	1576	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1070		1577
1071	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1072	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1073	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1074	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1075		1584
1076	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1077	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1113	or return [];	1622	or return [];
1114		1623
1115	my @logins;	1624	my @logins;
1116		1625
1117	for my $login (@$dirs) {	1626	for my $login (@$dirs) {
		1627	my $path = path $login;
		1628
		1629	# a .pst is a dead give-away for a valid player
		1630	# if no pst file found, open and chekc for blocked users
		1631	if (aio_stat "$path.pst") {
1118	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1119	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1120	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1121		1636
1122	utf8::decode $login;	1637	utf8::decode $login;
1123	push @logins, $login;	1638	push @logins, $login;
1124	}	1639	}
1125		1640
…		…
1152	}	1667	}
1153		1668
1154	\@paths	1669	\@paths
1155	}	1670	}
1156		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1157	=item $player->ext_reply ($msgid, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1158		1677
1159	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1160		1679
1161	=cut	1680	=cut
1162		1681
1163	sub ext_reply($$%) {	1682	sub ext_reply($$@) {
1164	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1165		1684
1166	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1167
1168	$self->send ("ext " . cf::to_json \%msg);
1169	}	1686	}
1170		1687
1171	=item $player->ext_event ($type, %msg)	1688	=item $player->ext_msg ($type, @msg)
1172		1689
1173	Sends an ext event to the client.	1690	Sends an ext event to the client.
1174		1691
1175	=cut	1692	=cut
1176		1693
1177	sub ext_event($$%) {	1694	sub ext_msg($$@) {
1178	my ($self, $type, %msg) = @_;	1695	my ($self, $type, @msg) = @_;
1179		1696
1180	$self->ns->ext_event ($type, %msg);	1697	$self->ns->ext_msg ($type, @msg);
1181	}	1698	}
1182		1699
1183	=head3 cf::region	1700	=head3 cf::region
1184		1701
1185	=over 4	1702	=over 4
…		…
1188		1705
1189	package cf::region;	1706	package cf::region;
1190		1707
1191	=item cf::region::find_by_path $path	1708	=item cf::region::find_by_path $path
1192		1709
1193	Tries to decuce the probable region for a map knowing only its path.	1710	Tries to decuce the likely region for a map knowing only its path.
1194		1711
1195	=cut	1712	=cut
1196		1713
1197	sub find_by_path($) {	1714	sub find_by_path($) {
1198	my ($path) = @_;	1715	my ($path) = @_;
1199		1716
1200	my ($match, $specificity);	1717	my ($match, $specificity);
1201		1718
1202	for my $region (list) {	1719	for my $region (list) {
1203	if ($region->match && $path =~ $region->match) {	1720	if ($region->{match} && $path =~ $region->{match}) {
1204	($match, $specificity) = ($region, $region->specificity)	1721	($match, $specificity) = ($region, $region->specificity)
1205	if $region->specificity > $specificity;	1722	if $region->specificity > $specificity;
1206	}	1723	}
1207	}	1724	}
1208		1725
…		…
1229	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1230	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1231		1748
1232	sub generate_random_map {	1749	sub generate_random_map {
1233	my ($self, $rmp) = @_;	1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1753
1234	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1235	$self->_create_random_map (	1755	$self->_create_random_map (
1236	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1237	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1238	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1272	my ($self, $merge) = @_;	1792	my ($self, $merge) = @_;
1273		1793
1274	# we have to keep some variables in memory intact	1794	# we have to keep some variables in memory intact
1275	local $self->{path};	1795	local $self->{path};
1276	local $self->{load_path};	1796	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1797
1280	$self->SUPER::thawer_merge ($merge);	1798	$self->SUPER::thawer_merge ($merge);
1281	}	1799	}
1282		1800
1283	sub normalise {	1801	sub normalise {
…		…
1330	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1331	return $self;	1849	return $self;
1332	}	1850	}
1333	}	1851	}
1334		1852
1335	Carp::carp "unable to resolve path '$path' (base '$base').";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1336	()	1854	()
1337	}	1855	}
1338		1856
1339	sub init {	1857	sub init {
1340	my ($self) = @_;	1858	my ($self) = @_;
…		…
1362		1880
1363	# the temporary/swap location	1881	# the temporary/swap location
1364	sub save_path {	1882	sub save_path {
1365	my ($self) = @_;	1883	my ($self) = @_;
1366		1884
1367	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1368	"$TMPDIR/$path.map"	1886	"$TMPDIR/$path.map"
1369	}	1887	}
1370		1888
1371	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1372	sub uniq_path {	1890	sub uniq_path {
1373	my ($self) = @_;	1891	my ($self) = @_;
1374		1892
1375	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1376	"$UNIQUEDIR/$path"	1894	"$UNIQUEDIR/$path"
1377	}	1895	}
1378		1896
1379	# and all this just because we cannot iterate over	1897	sub decay_objects {
1380	# all maps in C++...
1381	sub change_all_map_light {
1382	my ($change) = @_;	1898	my ($self) = @_;
1383		1899
1384	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1385	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1386	}	1903	}
1387		1904
1388	sub unlink_save {	1905	sub unlink_save {
1389	my ($self) = @_;	1906	my ($self) = @_;
1390		1907
…		…
1395		1912
1396	sub load_header_from($) {	1913	sub load_header_from($) {
1397	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1398		1915
1399	utf8::encode $path;	1916	utf8::encode $path;
1400	#aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1401	# or return;
1402
1403	$self->_load_header ($path)
1404	or return;	1918	or return;
		1919
		1920	$self->_load_header ($f)
		1921	or return;
		1922
		1923	local $MAP_LOADING{$self->{path}} = $self;
		1924	$f->resolve_delayed_derefs;
1405		1925
1406	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1407		1927
1408	1	1928	1
1409	}	1929	}
…		…
1448	$self->load_header_orig	1968	$self->load_header_orig
1449	or return;	1969	or return;
1450	$self->prepare_orig;	1970	$self->prepare_orig;
1451	}	1971	}
1452		1972
		1973	$self->{deny_reset} = 1
		1974	if $self->no_reset;
		1975
1453	$self->default_region (cf::region::find_by_path $self->{path})	1976	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	1977	unless $self->default_region;
1455		1978
1456	1	1979	1
1457	}	1980	}
…		…
1460	sub find {	1983	sub find {
1461	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1462		1985
1463	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1464		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1465	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1466		1990
1467	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1468	my $guard = cf::lock_acquire "map_find:$path";
1469	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1470	or return;	1993	or return;
1471		1994
1472	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1473		1996
1474	$map->load_header	1997	$map->load_header
1475	or return;	1998	or return;
1476		1999
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1480	$map->reset;	2005	$map->reset;
1481	undef $guard;
1482	return find $path;	2006	return find $path;
1483	}	2007	}
1484		2008
1485	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1486	}	2010	}
…		…
1495	local $self->{deny_reset} = 1; # loading can take a long time	2019	local $self->{deny_reset} = 1; # loading can take a long time
1496		2020
1497	my $path = $self->{path};	2021	my $path = $self->{path};
1498		2022
1499	{	2023	{
1500	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1501		2025
		2026	return unless $self->valid;
1502	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1503		2028
1504	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1505		2030
1506	$self->alloc;	2031	$self->alloc;
1507		2032
1508	$self->pre_load;	2033	$self->pre_load;
1509	Coro::cede;	2034	cf::cede_to_tick;
1510		2035
		2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
1511	$self->_load_objects ($self->{load_path}, 1)	2038	$self->_load_objects ($f)
1512	or return;	2039	or return;
1513		2040
1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1515	if delete $self->{load_original};	2042	if delete $self->{load_original};
1516		2043
1517	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1518	utf8::encode $uniq;	2045	utf8::encode $uniq;
1519	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1520	$self->clear_unique_items;	2048	$self->clear_unique_items;
1521	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1522	}	2052	}
1523	}	2053	}
1524		2054
1525	Coro::cede;	2055	$f->resolve_delayed_derefs;
		2056
		2057	cf::cede_to_tick;
1526	# now do the right thing for maps	2058	# now do the right thing for maps
1527	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1528	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1529	unless $self->difficulty;	2061	unless $self->difficulty;
1530	Coro::cede;	2062	cf::cede_to_tick;
1531		2063
1532	unless ($self->{deny_activate}) {	2064	unless ($self->{deny_activate}) {
1533	$self->decay_objects;	2065	$self->decay_objects;
1534	$self->fix_auto_apply;	2066	$self->fix_auto_apply;
1535	$self->update_buttons;	2067	$self->update_buttons;
1536	Coro::cede;	2068	cf::cede_to_tick;
1537	$self->set_darkness_map;
1538	Coro::cede;
1539	$self->activate;	2069	$self->activate;
1540	}	2070	}
1541		2071
		2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
		2074
1542	$self->in_memory (cf::MAP_IN_MEMORY);	2075	$self->in_memory (cf::MAP_ACTIVE);
1543	}	2076	}
1544		2077
1545	$self->post_load;	2078	$self->post_load;
1546	}	2079	}
1547		2080
…		…
1549	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1550		2083
1551	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	2085	if $self->per_player;
1553		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1554	$self	2090	$self
1555	}	2091	}
1556		2092
1557	# find and load all maps in the 3x3 area around a map	2093	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	2094	sub load_neighbours {
1559	my ($map) = @_;	2095	my ($map) = @_;
1560		2096
1561	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1562		2098
1563	for (0 .. 3) {	2099	for (0 .. 3) {
1564	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1565	or next;	2101	or next;
1566	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1567	or next;	2103	or next;
1568	$neigh->load;	2104	$neigh->load;
1569		2105
		2106	push @neigh,
1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1572	}	2109	}
1573		2110
1574	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1575	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1576	or next;	2114	or next;
1577	$neigh->load;	2115	$neigh->load;
1578	}	2116	}
1579	}	2117	}
1580		2118
…		…
1585	}	2123	}
1586		2124
1587	sub do_load_sync {	2125	sub do_load_sync {
1588	my ($map) = @_;	2126	my ($map) = @_;
1589		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1590	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1591	}	2132	}
1592		2133
1593	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1594	our $MAP_PREFETCHER = undef;	2135	our $MAP_PREFETCHER = undef;
1595		2136
1596	sub find_async {	2137	sub find_async {
1597	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1598		2139
1599	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1600		2141
1601	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1603	}	2144	}
1604		2145
1605	undef $MAP_PREFETCH{$path};	2146	$MAP_PREFETCH{$path} |= $load;
		2147
1606	$MAP_PREFETCHER ||= cf::async {	2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
1607	while (%MAP_PREFETCH) {	2151	while (%MAP_PREFETCH) {
1608	for my $path (keys %MAP_PREFETCH) {	2152	while (my ($k, $v) = each %MAP_PREFETCH) {
1609	my $map = find $path	2153	if (my $map = find $k) {
1610	or next;
1611	$map->load;	2154	$map->load if $v;
		2155	}
1612		2156
1613	delete $MAP_PREFETCH{$path};	2157	delete $MAP_PREFETCH{$k};
1614	}	2158	}
1615	}	2159	}
1616	undef $MAP_PREFETCHER;	2160	undef $MAP_PREFETCHER;
1617	};	2161	};
1618	$MAP_PREFETCHER->prio (6);	2162	$MAP_PREFETCHER->prio (6);
…		…
1621	}	2165	}
1622		2166
1623	sub save {	2167	sub save {
1624	my ($self) = @_;	2168	my ($self) = @_;
1625		2169
1626	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1627		2171
1628	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1629		2173
1630	return unless $self->dirty;	2174	return unless $self->dirty;
1631		2175
…		…
1637	return if $self->{deny_save};	2181	return if $self->{deny_save};
1638		2182
1639	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1640		2184
1641	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1642	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1643	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1644		2191
1645	if ($uniq) {	2192	if ($uniq) {
1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1647	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1648	} else {	2195	} else {
…		…
1654	my ($self) = @_;	2201	my ($self) = @_;
1655		2202
1656	# save first because save cedes	2203	# save first because save cedes
1657	$self->save;	2204	$self->save;
1658		2205
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1660		2207
1661	return if $self->players;	2208	return if $self->players;
1662	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1663	return if $self->{deny_save};	2210	return if $self->{deny_save};
1664		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1665	$self->clear;	2216	$self->clear;
1666	$self->in_memory (cf::MAP_SWAPPED);
1667	}	2217	}
1668		2218
1669	sub reset_at {	2219	sub reset_at {
1670	my ($self) = @_;	2220	my ($self) = @_;
1671		2221
1672	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1674	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1675		2224
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1678		2227
…		…
1689	my ($self) = @_;	2238	my ($self) = @_;
1690		2239
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2241
1693	return if $self->players;	2242	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		2243
1696	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
1697		2245
1698	$self->in_memory (cf::MAP_SWAPPED);	2246	$self->in_memory (cf::MAP_SWAPPED);
1699		2247
1700	# need to save uniques path	2248	# need to save uniques path
1701	unless ($self->{deny_save}) {	2249	unless ($self->{deny_save}) {
…		…
1705	if $uniq;	2253	if $uniq;
1706	}	2254	}
1707		2255
1708	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1709		2257
		2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1710	$self->clear;	2260	$self->clear;
1711
1712	$_->clear_links_to ($self) for values %cf::MAP;
1713		2261
1714	$self->unlink_save;	2262	$self->unlink_save;
1715	$self->destroy;	2263	$self->destroy;
1716	}	2264	}
1717		2265
1718	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1719		2267
1720	sub nuke {	2268	sub nuke {
1721	my ($self) = @_;	2269	my ($self) = @_;
1722		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1723	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1724		2275
1725	$self->unlink_save;	2276	$self->unlink_save;
1726		2277
1727	bless $self, "cf::map";	2278	bless $self, "cf::map";
1728	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1729	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1730	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1732		2283
1733	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1734		2286
1735	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
		2288	}
		2289
		2290	=item $maps = cf::map::tmp_maps
		2291
		2292	Returns an arrayref with all map paths of currently instantiated and saved
		2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
		2298	[
		2299	map {
		2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
		2306	}
		2307
		2308	=item $maps = cf::map::random_maps
		2309
		2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
		2312
		2313	=cut
		2314
		2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
1736	}	2324	}
1737		2325
1738	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1739		2327
1740	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2329	instantiated unique items. May block.
1742		2330
1743	=cut	2331	=cut
1744		2332
1745	sub unique_maps() {	2333	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2334	[
1747	or return;	2335	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2336	utf8::decode $_;
1753	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1754	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1755		2339	? ()
1756	push @paths, cf::map::normalise $_;	2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2342	]
1758
1759	\@paths
1760	}	2343	}
1761
1762	package cf;
1763		2344
1764	=back	2345	=back
1765		2346
1766	=head3 cf::object	2347	=head3 cf::object
1767		2348
…		…
1771		2352
1772	=over 4	2353	=over 4
1773		2354
1774	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1775		2356
1776	Returns the inventory of the object _and_ their inventories, recursively.	2357	Returns the inventory of the object I<and> their inventories, recursively,
		2358	but I<not> the object itself.
1777		2359
1778	=cut	2360	=cut
1779		2361
1780	sub inv_recursive_;	2362	sub inv_recursive_;
1781	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1784		2366
1785	sub inv_recursive {	2367	sub inv_recursive {
1786	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1787	}	2369	}
1788		2370
		2371	=item $ref = $ob->ref
		2372
		2373	Creates and returns a persistent reference to an object that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
		2396	}
		2397	}
		2398
1789	package cf;	2399	package cf;
1790		2400
1791	=back	2401	=back
1792		2402
1793	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1799	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2409	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1800	can be C<undef>. Does the right thing when the player is currently in a	2410	can be C<undef>. Does the right thing when the player is currently in a
1801	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1802		2412
1803	=cut	2413	=cut
		2414
		2415	our $SAY_CHANNEL = {
		2416	id => "say",
		2417	title => "Map",
		2418	reply => "say ",
		2419	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2420	};
		2421
		2422	our $CHAT_CHANNEL = {
		2423	id => "chat",
		2424	title => "Chat",
		2425	reply => "chat ",
		2426	tooltip => "Player chat and shouts, global to the server.",
		2427	};
1804		2428
1805	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1806	# with dialog boxes.	2430	# with dialog boxes.
1807	#TODO: the first argument must go, split into a $npc->reply_to ( method	2431	#TODO: the first argument must go, split into a $npc->reply_to ( method
1808	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1810		2434
1811	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1812		2436
1813	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1815	} else {	2440	} else {
		2441	my $pl = $self->contr;
		2442
		2443	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2444	my $dialog = $pl->{npc_dialog};
		2445	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2446
		2447	} else {
1816	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1818	}	2451	}
		2452	}
		2453
		2454	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2455
		2456	=cut
		2457
		2458	sub cf::object::send_msg {
		2459	my $pl = shift->contr
		2460	or return;
		2461	$pl->send_msg (@_);
1819	}	2462	}
1820		2463
1821	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1822		2465
1823	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1836		2479
1837	=item $player_object->enter_link	2480	=item $player_object->enter_link
1838		2481
1839	Freezes the player and moves him/her to a special map (C<{link}>).	2482	Freezes the player and moves him/her to a special map (C<{link}>).
1840		2483
1841	The player should be reasonably safe there for short amounts of time. You	2484	The player should be reasonably safe there for short amounts of time (e.g.
1842	I<MUST> call C<leave_link> as soon as possible, though.	2485	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2486	though, as the palyer cannot control the character while it is on the link
		2487	map.
1843		2488
1844	Will never block.	2489	Will never block.
1845		2490
1846	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1847		2492
…		…
1870	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1871		2516
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2518
1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1876		2521
1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1878	}	2523	}
1879		2524
1880	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1882		2529
1883	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1884		2531
1885	unless ($map) {	2532	unless ($map) {
1886	# restore original map position	2533	# restore original map position
…		…
1900	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1901	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1902	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1903		2550
1904	$map->load;	2551	$map->load;
1905	$map->load_diag;	2552	$map->load_neighbours;
1906		2553
1907	return unless $self->contr->active;	2554	return unless $self->contr->active;
1908	$self->activate_recursive;
1909		2555
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2556	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2557	$self->enter_map ($map, $x, $y);
1912	}
1913		2558
1914	cf::player->attach (	2559	# only activate afterwards, to support waiting in hooks
1915	on_logout => sub {	2560	$self->activate_recursive;
1916	my ($pl) = @_;	2561	}
1917		2562
1918	# abort map switching before logout	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1919	if ($pl->ob->{_link_pos}) {
1920	cf::sync_job {
1921	$pl->ob->leave_link
1922	};
1923	}
1924	},
1925	on_login => sub {
1926	my ($pl) = @_;
1927		2564
1928	# try to abort aborted map switching on player login :)	2565	Moves the player to the given map-path and coordinates by first freezing
1929	# should happen only on crashes	2566	her, loading and preparing them map, calling the provided $check callback
1930	if ($pl->ob->{_link_pos}) {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1931	$pl->ob->enter_link;	2568	the new (success) or old (failed) map position. In either case, $done will
1932	(async {	2569	be called at the end of this process.
1933	$pl->ob->reply (undef,
1934	"There was an internal problem at your last logout, "
1935	. "the server will try to bring you to your intended destination in a second.",
1936	cf::NDI_RED);
1937	# we need this sleep as the login has a concurrent enter_exit running
1938	# and this sleep increases chances of the player not ending up in scorn
1939	Coro::Timer::sleep 1;
1940	$pl->ob->leave_link;
1941	})->prio (2);
1942	}
1943	},
1944	);
1945		2570
1946	=item $player_object->goto ($path, $x, $y)	2571	Note that $check will be called with a potentially non-loaded map, so if
		2572	it needs a loaded map it has to call C<< ->load >>.
1947		2573
1948	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1949		2577
1950	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1951	my ($self, $path, $x, $y) = @_;	2579	my ($self, $path, $x, $y, $check, $done) = @_;
		2580
		2581	# do generation counting so two concurrent goto's will be executed in-order
		2582	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1952		2583
1953	$self->enter_link;	2584	$self->enter_link;
1954		2585
1955	(async {	2586	(async {
		2587	$Coro::current->{desc} = "player::goto $path $x $y";
		2588
		2589	# *tag paths override both path and x|y
		2590	if ($path =~ /^\*(.*)$/) {
		2591	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2592	my $ob = $obs[rand @obs];
		2593
		2594	# see if we actually can go there
		2595	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2596	$ob = $obs[rand @obs];
		2597	} else {
		2598	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600	# else put us there anyways for now #d#
		2601
		2602	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2603	} else {
		2604	($path, $x, $y) = (undef, undef, undef);
		2605	}
		2606	}
		2607
1956	my $map = eval {	2608	my $map = eval {
1957	my $map = cf::map::find $path;	2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1958	$map = $map->customise_for ($self) if $map;	2612	$map = $map->customise_for ($self);
		2613	$map = $check->($map) if $check && $map;
		2614	} else {
		2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
		2617
1959	$map	2618	$map
		2619	};
		2620
		2621	if ($@) {
		2622	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2623	LOG llevError | logBacktrace, Carp::longmess $@;
1960	} or	2624	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1962		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1964	})->prio (1);	2632	})->prio (1);
1965	}	2633	}
1966		2634
1967	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1968		2636
…		…
1988	}	2656	}
1989		2657
1990	sub prepare_random_map {	2658	sub prepare_random_map {
1991	my ($exit) = @_;	2659	my ($exit) = @_;
1992		2660
1993	my $guard = cf::lock_acquire "exit_prepare:$exit";
1994
1995	# all this does is basically replace the /! path by	2661	# all this does is basically replace the /! path by
1996	# a new random map path (?random/...) with a seed	2662	# a new random map path (?random/...) with a seed
1997	# that depends on the exit object	2663	# that depends on the exit object
1998		2664
1999	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
…		…
2001	if ($exit->map) {	2667	if ($exit->map) {
2002	$rmp->{region} = $exit->region->name;	2668	$rmp->{region} = $exit->region->name;
2003	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
2004	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
2005	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
2006	}	2674	}
2007		2675
2008	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
2009		2677
2010	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2011	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
2012	my $meta = "$RANDOMDIR/$md5.meta";	2680	my $meta = "$RANDOMDIR/$md5.meta";
2013		2681
2014	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2015	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
2016	undef $fh;	2684	undef $fh;
2017	aio_rename "$meta~", $meta;	2685	aio_rename "$meta~", $meta;
2018		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
2019	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
2020	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
2021	}	2693	}
2022	}	2694	}
2023		2695
2024	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
2025	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
2026		2698
2027	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
2028		2700
2029	if ($exit->slaying eq "/!") {
2030	#TODO: this should de-fi-ni-te-ly not be a sync-job
2031	# the problem is that $exit might not survive long enough
2032	# so it needs to be done right now, right here
2033	cf::sync_job { prepare_random_map $exit };
2034	}
2035
2036	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2037	my $hp = $exit->stats->hp;
2038	my $sp = $exit->stats->sp;
2039
2040	$self->enter_link;	2701	$self->enter_link;
2041		2702
2042	(async {	2703	(async {
2043	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
2044	unless (eval {	2706	unless (eval {
		2707	$self->deactivate_recursive; # just to be sure
		2708
		2709	# random map handling
		2710	{
		2711	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2712
		2713	prepare_random_map $exit
		2714	if $exit->slaying eq "/!";
		2715	}
		2716
		2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
		2720
2045	$self->goto ($slaying, $hp, $sp);	2721	$self->goto ($map, $x, $y);
2046		2722
		2723	# if exit is damned, update players death & WoR home-position
		2724	$self->contr->savebed ($map, $x, $y)
		2725	if $exit->flag (cf::FLAG_DAMNED);
		2726
2047	1;	2727	1
2048	}) {	2728	}) {
2049	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
2050	. "I'll try to bring you back to the map you were before. "	2730	. "I'll try to bring you back to the map you were before. "
2051	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
2052	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
2053		2733
2054	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
…		…
2073		2753
2074	utf8::encode $text;	2754	utf8::encode $text;
2075	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2076	}	2756	}
2077		2757
		2758	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2759
		2760	Send a drawinfo or msg packet to the client, formatting the msg for the
		2761	client if neccessary. C<$type> should be a string identifying the type of
		2762	the message, with C<log> being the default. If C<$color> is negative, suppress
		2763	the message unless the client supports the msg packet.
		2764
		2765	=cut
		2766
		2767	# non-persistent channels (usually the info channel)
		2768	our %CHANNEL = (
		2769	"c/identify" => {
		2770	id => "infobox",
		2771	title => "Identify",
		2772	reply => undef,
		2773	tooltip => "Items recently identified",
		2774	},
		2775	"c/examine" => {
		2776	id => "infobox",
		2777	title => "Examine",
		2778	reply => undef,
		2779	tooltip => "Signs and other items you examined",
		2780	},
		2781	"c/book" => {
		2782	id => "infobox",
		2783	title => "Book",
		2784	reply => undef,
		2785	tooltip => "The contents of a note or book",
		2786	},
		2787	"c/lookat" => {
		2788	id => "infobox",
		2789	title => "Look",
		2790	reply => undef,
		2791	tooltip => "What you saw there",
		2792	},
		2793	"c/who" => {
		2794	id => "infobox",
		2795	title => "Players",
		2796	reply => undef,
		2797	tooltip => "Shows players who are currently online",
		2798	},
		2799	"c/body" => {
		2800	id => "infobox",
		2801	title => "Body Parts",
		2802	reply => undef,
		2803	tooltip => "Shows which body parts you posess and are available",
		2804	},
		2805	"c/statistics" => {
		2806	id => "infobox",
		2807	title => "Statistics",
		2808	reply => undef,
		2809	tooltip => "Shows your primary statistics",
		2810	},
		2811	"c/skills" => {
		2812	id => "infobox",
		2813	title => "Skills",
		2814	reply => undef,
		2815	tooltip => "Shows your experience per skill and item power",
		2816	},
		2817	"c/shopitems" => {
		2818	id => "infobox",
		2819	title => "Shop Items",
		2820	reply => undef,
		2821	tooltip => "Shows the items currently for sale in this shop",
		2822	},
		2823	"c/resistances" => {
		2824	id => "infobox",
		2825	title => "Resistances",
		2826	reply => undef,
		2827	tooltip => "Shows your resistances",
		2828	},
		2829	"c/pets" => {
		2830	id => "infobox",
		2831	title => "Pets",
		2832	reply => undef,
		2833	tooltip => "Shows information abotu your pets/a specific pet",
		2834	},
		2835	"c/perceiveself" => {
		2836	id => "infobox",
		2837	title => "Perceive Self",
		2838	reply => undef,
		2839	tooltip => "You gained detailed knowledge about yourself",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	"c/death" => {
		2860	id => "death",
		2861	title => "Death",
		2862	reply => undef,
		2863	tooltip => "Reason for and more info about your most recent death",
		2864	},
		2865	"c/say" => $SAY_CHANNEL,
		2866	"c/chat" => $CHAT_CHANNEL,
		2867	);
		2868
		2869	sub cf::client::send_msg {
		2870	my ($self, $channel, $msg, $color, @extra) = @_;
		2871
		2872	$msg = $self->pl->expand_cfpod ($msg)
		2873	unless $color & cf::NDI_VERBATIM;
		2874
		2875	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2876
		2877	# check predefined channels, for the benefit of C
		2878	if ($CHANNEL{$channel}) {
		2879	$channel = $CHANNEL{$channel};
		2880
		2881	$self->ext_msg (channel_info => $channel);
		2882	$channel = $channel->{id};
		2883
		2884	} elsif (ref $channel) {
		2885	# send meta info to client, if not yet sent
		2886	unless (exists $self->{channel}{$channel->{id}}) {
		2887	$self->{channel}{$channel->{id}} = $channel;
		2888	$self->ext_msg (channel_info => $channel);
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	# default colour, mask it out
		2897	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2898	if $color & cf::NDI_DEF;
		2899
		2900	my $pkt = "msg "
		2901	. $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2903	);
		2904
		2905	# try lzf for large packets
		2906	$pkt = "lzf " . Compress::LZF::compress $pkt
		2907	if 1024 <= length $pkt and $self->{can_lzf};
		2908
		2909	# split very large packets
		2910	if (8192 < length $pkt and $self->{can_lzf}) {
		2911	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2912	$pkt = "frag";
		2913	}
		2914
		2915	$self->send_packet ($pkt);
		2916	}
		2917
2078	=item $client->ext_event ($type, %msg)	2918	=item $client->ext_msg ($type, @msg)
2079		2919
2080	Sends an exti event to the client.	2920	Sends an ext event to the client.
2081		2921
2082	=cut	2922	=cut
2083		2923
2084	sub cf::client::ext_event($$%) {	2924	sub cf::client::ext_msg($$@) {
2085	my ($self, $type, %msg) = @_;	2925	my ($self, $type, @msg) = @_;
2086		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
2087	$msg{msgtype} = "event_$type";	2930	push @msg, msgtype => "event_$type";
2088	$self->send_packet ("ext " . cf::to_json \%msg);	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	}
2089	}	2951	}
2090		2952
2091	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
2092		2954
2093	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
2094	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>,
2095	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>.
2096		2958
2097	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
2098	reliable at some point in the future.	2960	become reliable at some point in the future.
2099		2961
2100	=cut	2962	=cut
2101		2963
2102	sub cf::client::query {	2964	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	2973	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		2975
2114	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
2116	}	2980	}
2117		2981
2118	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	},
2119	on_reply => sub {	2988	on_reply => sub {
2120	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
2121		2990
2122	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
2123	# get handled first	2992	# get handled first
…		…
2135	} else {	3004	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	3006	}
2138	}	3007	}
2139	},	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	},
2140	);	3035	);
2141		3036
2142	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2143		3038
2144	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2185	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2186	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2187		3082
2188	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2189		3084
2190	$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	));
2191		3090
2192	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2193		3092
2194	=pod	3093	=pod
2195		3094
2196	The following functions and methods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2197		3096
2198	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	value
		3101
2199	cf::object::player player	3102	cf::object::player
2200	cf::player peaceful	3103	player
2201	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
2202		3110
2203	=cut	3111	=cut
2204		3112
2205	for (	3113	for (
2206	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
2207	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2208	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2209	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2210	) {	3120	) {
2211	no strict 'refs';	3121	no strict 'refs';
2212	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2213	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2230	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2231		3141
2232	my $qcode = $code;	3142	my $qcode = $code;
2233	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2234	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2235		3147
2236	local $_;	3148	local $_;
2237	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2238		3150
2239	my $eval =	3151	my $eval =
…		…
2282	=back	3194	=back
2283		3195
2284	=cut	3196	=cut
2285		3197
2286	#############################################################################	3198	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$family> should best start with the name of the extension
2295	using it, it should be unique.
2296
2297	=over 4
2298
2299	=item $value = cf::db_get $family => $key
2300
2301	Returns a single value from the database.
2302
2303	=item cf::db_put $family => $key => $value
2304
2305	Stores the given C<$value> in the family.
2306
2307	=cut
2308
2309	our $DB;
2310
2311	sub db_init {
2312	unless ($DB) {
2313	$DB = BDB::db_create $DB_ENV;
2314
2315	cf::sync_job {
2316	eval {
2317	$DB->set_flags (BDB::CHKSUM);
2318
2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2321	cf::cleanup "db_open(db): $!" if $!;
2322	};
2323	cf::cleanup "db_open(db): $@" if $@;
2324	};
2325	}
2326	}
2327
2328	sub db_get($$) {
2329	my $key = "$_[0]/$_[1]";
2330
2331	cf::sync_job {
2332	BDB::db_get $DB, undef, $key, my $data;
2333
2334	$! ? ()
2335	: $data
2336	}
2337	}
2338
2339	sub db_put($$$) {
2340	BDB::dbreq_pri 4;
2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2342	}
2343
2344	=item cf::cache $id => [$paths...], $processversion => $process
2345
2346	Generic caching function that returns the value of the resource $id,
2347	caching and regenerating as required.
2348
2349	This function can block.
2350
2351	=cut
2352
2353	sub cache {
2354	my ($id, $src, $processversion, $process) = @_;
2355
2356	my $meta =
2357	join "\x00",
2358	$processversion,
2359	map {
2360	aio_stat $_
2361	and Carp::croak "$_: $!";
2362
2363	($_, (stat _)[7,9])
2364	} @$src;
2365
2366	my $dbmeta = db_get cache => "$id/meta";
2367	if ($dbmeta ne $meta) {
2368	# changed, we may need to process
2369
2370	my @data;
2371	my $md5;
2372
2373	for (0 .. $#$src) {
2374	0 <= aio_load $src->[$_], $data[$_]
2375	or Carp::croak "$src->[$_]: $!";
2376	}
2377
2378	# if processing is expensive, check
2379	# checksum first
2380	if (1) {
2381	$md5 =
2382	join "\x00",
2383	$processversion,
2384	map {
2385	Coro::cede;
2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
2387	} 0.. $#$src;
2388
2389
2390	my $dbmd5 = db_get cache => "$id/md5";
2391	if ($dbmd5 eq $md5) {
2392	db_put cache => "$id/meta", $meta;
2393
2394	return db_get cache => "$id/data";
2395	}
2396	}
2397
2398	my $t1 = Time::HiRes::time;
2399	my $data = $process->(\@data);
2400	my $t2 = Time::HiRes::time;
2401
2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404	db_put cache => "$id/data", $data;
2405	db_put cache => "$id/md5" , $md5;
2406	db_put cache => "$id/meta", $meta;
2407
2408	return $data;
2409	}
2410
2411	db_get cache => "$id/data"
2412	}
2413
2414	=item fork_call { }, $args
2415
2416	Executes the given code block with the given arguments in a seperate
2417	process, returning the results. Everything must be serialisable with
2418	Coro::Storable. May, of course, block. Note that the executed sub may
2419	never block itself or use any form of Event handling.
2420
2421	=cut
2422
2423	sub fork_call(&@) {
2424	my ($cb, @args) = @_;
2425
2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427	# or die "socketpair: $!";
2428	pipe my $fh1, my $fh2
2429	or die "pipe: $!";
2430
2431	if (my $pid = fork) {
2432	close $fh2;
2433
2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435	$res = Coro::Storable::thaw $res;
2436
2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439	die $$res unless "ARRAY" eq ref $res;
2440
2441	return wantarray ? @$res : $res->[-1];
2442	} else {
2443	reset_signals;
2444	local $SIG{__WARN__};
2445	local $SIG{__DIE__};
2446	eval {
2447	close $fh1;
2448
2449	my @res = eval { $cb->(@args) };
2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451	};
2452
2453	warn $@ if $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459
2460	#############################################################################
2461	# the server's init and main functions	3199	# the server's init and main functions
2462		3200
2463	sub load_facedata($) {	3201	sub load_facedata($) {
2464	my ($path) = @_;	3202	my ($path) = @_;
		3203
		3204	# HACK to clear player env face cache, we need some signal framework
		3205	# for this (global event?)
		3206	%ext::player_env::MUSIC_FACE_CACHE = ();
		3207
		3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2465		3209
2466	warn "loading facedata from $path\n";	3210	warn "loading facedata from $path\n";
2467		3211
2468	my $facedata;	3212	my $facedata;
2469	0 < aio_load $path, $facedata	3213	0 < aio_load $path, $facedata
…		…
2472	$facedata = Coro::Storable::thaw $facedata;	3216	$facedata = Coro::Storable::thaw $facedata;
2473		3217
2474	$facedata->{version} == 2	3218	$facedata->{version} == 2
2475	or cf::cleanup "$path: version mismatch, cannot proceed.";	3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
2476		3220
		3221	# patch in the exptable
		3222	$facedata->{resource}{"res/exp_table"} = {
		3223	type => FT_RSRC,
		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3225	};
		3226	cf::cede_to_tick;
		3227
2477	{	3228	{
2478	my $faces = $facedata->{faceinfo};	3229	my $faces = $facedata->{faceinfo};
2479		3230
2480	while (my ($face, $info) = each %$faces) {	3231	while (my ($face, $info) = each %$faces) {
2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3233
2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3234	cf::face::set_visibility $idx, $info->{visibility};
		3235	cf::face::set_magicmap $idx, $info->{magicmap};
2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2485	Coro::cede;	3238
		3239	cf::cede_to_tick;
2486	}	3240	}
2487		3241
2488	while (my ($face, $info) = each %$faces) {	3242	while (my ($face, $info) = each %$faces) {
2489	next unless $info->{smooth};	3243	next unless $info->{smooth};
		3244
2490	my $idx = cf::face::find $face	3245	my $idx = cf::face::find $face
2491	or next;	3246	or next;
		3247
2492	if (my $smooth = cf::face::find $info->{smooth}) {	3248	if (my $smooth = cf::face::find $info->{smooth}) {
		3249	cf::face::set_smooth $idx, $smooth;
2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3250	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2494	} else {	3251	} else {
2495	warn "smooth face '$info->{smooth}' not found for face '$face'";	3252	warn "smooth face '$info->{smooth}' not found for face '$face'";
2496	}	3253	}
2497	Coro::cede;	3254
		3255	cf::cede_to_tick;
2498	}	3256	}
2499	}	3257	}
2500		3258
2501	{	3259	{
2502	my $anims = $facedata->{animinfo};	3260	my $anims = $facedata->{animinfo};
2503		3261
2504	while (my ($anim, $info) = each %$anims) {	3262	while (my ($anim, $info) = each %$anims) {
2505	cf::anim::set $anim, $info->{frames}, $info->{facings};	3263	cf::anim::set $anim, $info->{frames}, $info->{facings};
2506	Coro::cede;	3264	cf::cede_to_tick;
2507	}	3265	}
2508		3266
2509	cf::anim::invalidate_all; # d'oh	3267	cf::anim::invalidate_all; # d'oh
2510	}	3268	}
2511		3269
		3270	{
		3271	# TODO: for gcfclient pleasure, we should give resources
		3272	# that gcfclient doesn't grok a >10000 face index.
		3273	my $res = $facedata->{resource};
		3274
		3275	while (my ($name, $info) = each %$res) {
		3276	if (defined $info->{type}) {
		3277	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3278	my $data;
		3279
		3280	if ($info->{type} & 1) {
		3281	# prepend meta info
		3282
		3283	my $meta = $enc->encode ({
		3284	name => $name,
		3285	%{ $info->{meta} || {} },
		3286	});
		3287
		3288	$data = pack "(w/a*)*", $meta, $info->{data};
		3289	} else {
		3290	$data = $info->{data};
		3291	}
		3292
		3293	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3294	cf::face::set_type $idx, $info->{type};
		3295	} else {
		3296	$RESOURCE{$name} = $info;
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3304
2512	1	3305	1
2513	}	3306	}
2514		3307
		3308	cf::global->attach (on_resource_update => sub {
		3309	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3310	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3311
		3312	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3313	my $sound = $soundconf->{compat}[$_]
		3314	or next;
		3315
		3316	my $face = cf::face::find "sound/$sound->[1]";
		3317	cf::sound::set $sound->[0] => $face;
		3318	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3319	}
		3320
		3321	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3322	my $face = cf::face::find "sound/$v";
		3323	cf::sound::set $k => $face;
		3324	}
		3325	}
		3326	});
		3327
		3328	register_exticmd fx_want => sub {
		3329	my ($ns, $want) = @_;
		3330
		3331	while (my ($k, $v) = each %$want) {
		3332	$ns->fx_want ($k, $v);
		3333	}
		3334	};
		3335
		3336	sub load_resource_file($) {
		3337	my $guard = lock_acquire "load_resource_file";
		3338
		3339	my $status = load_resource_file_ $_[0];
		3340	get_slot 0.1, 100;
		3341	cf::arch::commit_load;
		3342
		3343	$status
		3344	}
		3345
2515	sub reload_regions {	3346	sub reload_regions {
		3347	# HACK to clear player env face cache, we need some signal framework
		3348	# for this (global event?)
		3349	%ext::player_env::MUSIC_FACE_CACHE = ();
		3350
2516	load_resource_file "$MAPDIR/regions"	3351	load_resource_file "$MAPDIR/regions"
2517	or die "unable to load regions file\n";	3352	or die "unable to load regions file\n";
		3353
		3354	for (cf::region::list) {
		3355	$_->{match} = qr/$_->{match}/
		3356	if exists $_->{match};
		3357	}
2518	}	3358	}
2519		3359
2520	sub reload_facedata {	3360	sub reload_facedata {
2521	load_facedata "$DATADIR/facedata"	3361	load_facedata "$DATADIR/facedata"
2522	or die "unable to load facedata\n";	3362	or die "unable to load facedata\n";
…		…
2533	}	3373	}
2534		3374
2535	sub reload_resources {	3375	sub reload_resources {
2536	warn "reloading resource files...\n";	3376	warn "reloading resource files...\n";
2537		3377
2538	reload_regions;
2539	reload_facedata;	3378	reload_facedata;
2540	reload_archetypes;	3379	reload_archetypes;
		3380	reload_regions;
2541	reload_treasures;	3381	reload_treasures;
2542		3382
2543	warn "finished reloading resource files\n";	3383	warn "finished reloading resource files\n";
2544	}	3384	}
2545		3385
2546	sub init {	3386	sub reload_config {
2547	reload_resources;
2548	}
2549
2550	sub cfg_load {
2551	open my $fh, "<:utf8", "$CONFDIR/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2552	or return;	3388	or return;
2553		3389
2554	local $/;	3390	local $/;
2555	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2556		3392
2557	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2558		3394
2559	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3395	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2560	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3396	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2566	};	3402	};
2567	warn $@ if $@;	3403	warn $@ if $@;
2568	}	3404	}
2569	}	3405	}
2570		3406
		3407	sub pidfile() {
		3408	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3409	or die "$PIDFILE: $!";
		3410	flock $fh, &Fcntl::LOCK_EX
		3411	or die "$PIDFILE: flock: $!";
		3412	$fh
		3413	}
		3414
		3415	# make sure only one server instance is running at any one time
		3416	sub atomic {
		3417	my $fh = pidfile;
		3418
		3419	my $pid = <$fh>;
		3420	kill 9, $pid if $pid > 0;
		3421
		3422	seek $fh, 0, 0;
		3423	print $fh $$;
		3424	}
		3425
		3426	sub main_loop {
		3427	warn "EV::loop starting\n";
		3428	if (1) {
		3429	EV::loop;
		3430	}
		3431	warn "EV::loop returned\n";
		3432	goto &main_loop unless $REALLY_UNLOOP;
		3433	}
		3434
2571	sub main {	3435	sub main {
		3436	cf::init_globals; # initialise logging
		3437
		3438	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3439	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3440	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3441	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3442
		3443	cf::init_experience;
		3444	cf::init_anim;
		3445	cf::init_attackmess;
		3446	cf::init_dynamic;
		3447
		3448	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3449
2572	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2573	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2574	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2575	(async {	3453	(async {
2576	Event::one_event;	3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
2577	})->prio (Coro::PRIO_MAX);	3456	})->prio (Coro::PRIO_MAX);
2578	};	3457	};
2579		3458
2580	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
		3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
2581	db_init;	3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
2582	load_extensions;	3477	load_extensions;
2583		3478
2584	$TICK_WATCHER->start;	3479	utime time, time, $RUNTIMEFILE;
2585	Event::loop;	3480
		3481	# no (long-running) fork's whatsoever before this point(!)
		3482	use POSIX ();
		3483	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3484
		3485	(pop @POST_INIT)->(0) while @POST_INIT;
		3486	};
		3487
		3488	main_loop;
2586	}	3489	}
2587		3490
2588	#############################################################################	3491	#############################################################################
2589	# initialisation and cleanup	3492	# initialisation and cleanup
2590		3493
2591	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2592	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2593	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2594	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2595	reentrant => 0,
2596	data => WF_AUTOCANCEL,
2597	signal => $signal,
2598	prio => 0,
2599	cb => sub {
2600	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2601	},
2602	);	3500	};
		3501	}
		3502	}
		3503
		3504	sub write_runtime_sync {
		3505	# first touch the runtime file to show we are still running:
		3506	# the fsync below can take a very very long time.
		3507
		3508	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3509
		3510	my $guard = cf::lock_acquire "write_runtime";
		3511
		3512	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3513	or return;
		3514
		3515	my $value = $cf::RUNTIME + 90 + 10;
		3516	# 10 is the runtime save interval, for a monotonic clock
		3517	# 60 allows for the watchdog to kill the server.
		3518
		3519	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3520	and return;
		3521
		3522	# always fsync - this file is important
		3523	aio_fsync $fh
		3524	and return;
		3525
		3526	# touch it again to show we are up-to-date
		3527	aio_utime $fh, undef, undef;
		3528
		3529	close $fh
		3530	or return;
		3531
		3532	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3533	and return;
		3534
		3535	warn "runtime file written.\n";
		3536
2603	}	3537	1
		3538	}
		3539
		3540	our $uuid_lock;
		3541	our $uuid_skip;
		3542
		3543	sub write_uuid_sync($) {
		3544	$uuid_skip ||= $_[0];
		3545
		3546	return if $uuid_lock;
		3547	local $uuid_lock = 1;
		3548
		3549	my $uuid = "$LOCALDIR/uuid";
		3550
		3551	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3552	or return;
		3553
		3554	my $value = uuid_seq uuid_cur;
		3555
		3556	unless ($value) {
		3557	warn "cowardly refusing to write zero uuid value!\n";
		3558	return;
		3559	}
		3560
		3561	my $value = uuid_str $value + $uuid_skip;
		3562	$uuid_skip = 0;
		3563
		3564	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3565	and return;
		3566
		3567	# always fsync - this file is important
		3568	aio_fsync $fh
		3569	and return;
		3570
		3571	close $fh
		3572	or return;
		3573
		3574	aio_rename "$uuid~", $uuid
		3575	and return;
		3576
		3577	warn "uuid file written ($value).\n";
		3578
		3579	1
		3580
		3581	}
		3582
		3583	sub write_uuid($$) {
		3584	my ($skip, $sync) = @_;
		3585
		3586	$sync ? write_uuid_sync $skip
		3587	: async { write_uuid_sync $skip };
2604	}	3588	}
2605		3589
2606	sub emergency_save() {	3590	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2608		3592
2609	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2610		3594
2611	cf::sync_job {	3595	cf::sync_job {
		3596	# this is a trade-off: we want to be very quick here, so
		3597	# save all maps without fsync, and later call a global sync
		3598	# (which in turn might be very very slow)
		3599	local $USE_FSYNC = 0;
		3600
2612	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2613	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2614	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2615	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2616	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2617	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2618	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2619	$pl->save;	3609	$pl->save;
2620	}	3610	}
2621	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2622		3612
2623	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2624	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2625	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2626	$map->valid or next;	3616	$map->valid or next;
2627	$map->save;	3617	$map->save;
2628	}	3618	}
2629	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
2630		3620
2631	warn "begin emergency database checkpoint\n";	3621	warn "emergency_perl_save: begin database checkpoint\n";
2632	BDB::db_env_txn_checkpoint $DB_ENV;	3622	BDB::db_env_txn_checkpoint $DB_ENV;
2633	warn "end emergency database checkpoint\n";	3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
2634	};	3628	};
2635		3629
		3630	warn "emergency_perl_save: starting sync()\n";
		3631	IO::AIO::aio_sync sub {
		3632	warn "emergency_perl_save: finished sync()\n";
		3633	};
		3634
2636	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2637	}	3636	}
2638		3637
2639	sub post_cleanup {	3638	sub post_cleanup {
2640	my ($make_core) = @_;	3639	my ($make_core) = @_;
2641		3640
2642	warn Carp::longmess "post_cleanup backtrace"	3641	warn Carp::longmess "post_cleanup backtrace"
2643	if $make_core;	3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
2644	}	3672	}
2645		3673
2646	sub do_reload_perl() {	3674	sub do_reload_perl() {
2647	# can/must only be called in main	3675	# can/must only be called in main
2648	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2649	warn "can only reload from main coroutine";	3677	warn "can only reload from main coroutine";
2650	return;	3678	return;
2651	}	3679	}
2652		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2653	warn "reloading...";	3686	warn "reloading...";
2654		3687
2655	warn "entering sync_job";	3688	warn "entering sync_job";
2656		3689
2657	cf::sync_job {	3690	cf::sync_job {
2658	cf::write_runtime; # external watchdog should not bark	3691	cf::write_runtime_sync; # external watchdog should not bark
2659	cf::emergency_save;	3692	cf::emergency_save;
2660	cf::write_runtime; # external watchdog should not bark	3693	cf::write_runtime_sync; # external watchdog should not bark
2661		3694
2662	warn "syncing database to disk";	3695	warn "syncing database to disk";
2663	BDB::db_env_txn_checkpoint $DB_ENV;	3696	BDB::db_env_txn_checkpoint $DB_ENV;
2664		3697
2665	# if anything goes wrong in here, we should simply crash as we already saved	3698	# if anything goes wrong in here, we should simply crash as we already saved
2666		3699
2667	warn "cancelling all WF_AUTOCANCEL watchers";
2668	for (Event::all_watchers) {
2669	$_->cancel if $_->data & WF_AUTOCANCEL;
2670	}
2671
2672	warn "flushing outstanding aio requests";	3700	warn "flushing outstanding aio requests";
2673	for (;;) {
2674	BDB::flush;
2675	IO::AIO::flush;
2676	Coro::cede;
2677	last unless IO::AIO::nreqs || BDB::nreqs;	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2678	warn "iterate...";	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2679	}
2680
2681	++$RELOAD;
2682
2683	warn "cancelling all extension coros";
2684	$_->cancel for values %EXT_CORO;
2685	%EXT_CORO = ();
2686
2687	warn "removing commands";
2688	%COMMAND = ();
2689
2690	warn "removing ext commands";
2691	%EXTCMD = ();
2692
2693	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";
2696
2697	if (my $cb = $pkg->can ("unload")) {
2698	eval {
2699	$cb->($pkg);
2700	1
2701	} or warn "$pkg unloaded, but with errors: $@";
2702	}	3703	}
2703		3704
2704	warn "... nuking $pkg";	3705	warn "cancelling all extension coros";
2705	Symbol::delete_package $pkg;	3706	$_->cancel for values %EXT_CORO;
2706	}	3707	%EXT_CORO = ();
2707		3708
2708	warn "unloading all perl modules loaded from $LIBDIR";	3709	warn "removing commands";
2709	while (my ($k, $v) = each %INC) {	3710	%COMMAND = ();
2710	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2711		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2712	warn "... unloading $k";	3718	warn "... unloading $pkg";
2713	delete $INC{$k};
2714		3719
2715	$k =~ s/\.pm$//;
2716	$k =~ s/\//::/g;
2717
2718	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2719	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2720	}	3729	}
2721		3730
2722	Symbol::delete_package $k;	3731	warn "unloading all perl modules loaded from $LIBDIR";
		3732	while (my ($k, $v) = each %INC) {
		3733	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3734
		3735	warn "... unloading $k";
		3736	delete $INC{$k};
		3737
		3738	$k =~ s/\.pm$//;
		3739	$k =~ s/\//::/g;
		3740
		3741	if (my $cb = $k->can ("unload_module")) {
		3742	$cb->();
		3743	}
		3744
		3745	clear_package $k;
2723	}	3746	}
2724		3747
2725	warn "getting rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2726	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2727	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3750	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2728		3751
2729	warn "unloading cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2730	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
2731	delete $INC{"cf/pod.pm"};	3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2732		3755
2733	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2734	# and global variables created in xs	3757	# and global variables created in xs
2735	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2736		3759
2737	warn "unload completed, starting to reload now";	3760	warn "unload completed, starting to reload now";
2738		3761
2739	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2740	require cf;	3763	require cf;
2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2742		3765
2743	warn "loading config and database again";	3766	warn "loading config and database again";
2744	cf::cfg_load;	3767	cf::reload_config;
2745		3768
2746	warn "loading extensions";	3769	warn "loading extensions";
2747	cf::load_extensions;	3770	cf::load_extensions;
2748		3771
		3772	if ($REATTACH_ON_RELOAD) {
2749	warn "reattaching attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2750	_global_reattach; # objects, sockets	3774	_global_reattach; # objects, sockets
2751	warn "reattaching attachments to maps";	3775	warn "reattaching attachments to maps";
2752	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
2753	warn "reattaching attachments to players";	3777	warn "reattaching attachments to players";
2754	reattach $_ for values %PLAYER;	3778	reattach $_ for values %PLAYER;
		3779	}
2755		3780
		3781	warn "running post_init jobs";
		3782	(pop @POST_INIT)->(1) while @POST_INIT;
		3783
2756	warn "leaving sync_job";	3784	warn "leaving sync_job";
2757		3785
2758	1	3786	1
2759	} or do {	3787	} or do {
2760	warn $@;	3788	warn $@;
2761	warn "error while reloading, exiting.";	3789	cf::cleanup "error while reloading, exiting.";
2762	exit 1;
2763	};	3790	};
2764		3791
2765	warn "reloaded";	3792	warn "reloaded";
		3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
2766	};	3798	};
2767		3799
2768	our $RELOAD_WATCHER; # used only during reload	3800	our $RELOAD_WATCHER; # used only during reload
2769		3801
2770	sub reload_perl() {	3802	sub reload_perl() {
2771	# doing reload synchronously and two reloads happen back-to-back,	3803	# doing reload synchronously and two reloads happen back-to-back,
2772	# coro crashes during coro_state_free->destroy here.	3804	# coro crashes during coro_state_free->destroy here.
2773		3805
2774	$RELOAD_WATCHER ||= Event->timer (	3806	$RELOAD_WATCHER ||= cf::async {
2775	reentrant => 0,	3807	Coro::AIO::aio_wait cache_extensions;
2776	after => 0,	3808
2777	data => WF_AUTOCANCEL,	3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2778	cb => sub {
2779	do_reload_perl;	3810	do_reload_perl;
2780	undef $RELOAD_WATCHER;	3811	undef $RELOAD_WATCHER;
2781	},	3812	};
2782	);	3813	};
2783	}	3814	}
2784		3815
2785	register_command "reload" => sub {	3816	register_command "reload" => sub {
2786	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2787		3818
2788	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2789	$who->message ("reloading server.");	3820	$who->message ("reloading server.");
		3821	async {
		3822	$Coro::current->{desc} = "perl_reload";
2790	async { reload_perl };	3823	reload_perl;
		3824	};
2791	}	3825	}
2792	};	3826	};
2793		3827
2794	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2795		3829
…		…
2797		3831
2798	our @WAIT_FOR_TICK;	3832	our @WAIT_FOR_TICK;
2799	our @WAIT_FOR_TICK_BEGIN;	3833	our @WAIT_FOR_TICK_BEGIN;
2800		3834
2801	sub wait_for_tick {	3835	sub wait_for_tick {
2802	return unless $TICK_WATCHER->is_active;
2803	return if $Coro::current == $Coro::main;	3836	return if tick_inhibit || $Coro::current == $Coro::main;
2804		3837
2805	my $signal = new Coro::Signal;	3838	my $signal = new Coro::Signal;
2806	push @WAIT_FOR_TICK, $signal;	3839	push @WAIT_FOR_TICK, $signal;
2807	$signal->wait;	3840	$signal->wait;
2808	}	3841	}
2809		3842
2810	sub wait_for_tick_begin {	3843	sub wait_for_tick_begin {
2811	return unless $TICK_WATCHER->is_active;
2812	return if $Coro::current == $Coro::main;	3844	return if tick_inhibit || $Coro::current == $Coro::main;
2813		3845
2814	my $signal = new Coro::Signal;	3846	my $signal = new Coro::Signal;
2815	push @WAIT_FOR_TICK_BEGIN, $signal;	3847	push @WAIT_FOR_TICK_BEGIN, $signal;
2816	$signal->wait;	3848	$signal->wait;
2817	}	3849	}
2818		3850
2819	$TICK_WATCHER = Event->timer (	3851	sub tick {
2820	reentrant => 0,
2821	parked => 1,
2822	prio => 0,
2823	at => $NEXT_TICK || $TICK,
2824	data => WF_AUTOCANCEL,
2825	cb => sub {
2826	if ($Coro::current != $Coro::main) {	3852	if ($Coro::current != $Coro::main) {
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	3854	unless ++$bug_warning > 10;
2829	return;	3855	return;
2830	}	3856	}
2831		3857
2832	$NOW = Event::time;
2833
2834	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2835		3859
2836	$RUNTIME += $TICK;
2837	$NEXT_TICK += $TICK;
2838
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2840	$NEXT_RUNTIME_WRITE = $NOW + 10;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2841	Coro::async_pool {	3862	Coro::async_pool {
		3863	$Coro::current->{desc} = "runtime saver";
2842	write_runtime	3864	write_runtime_sync
2843	or warn "ERROR: unable to write runtime file: $!";	3865	or warn "ERROR: unable to write runtime file: $!";
2844	};
2845	}	3866	};
		3867	}
2846		3868
2847	# my $AFTER = Event::time;
2848	# warn $AFTER - $NOW;#d#
2849
2850	# if we are delayed by four ticks or more, skip them all
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2852
2853	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;
2855
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2857	$sig->send;	3870	$sig->send;
2858	}	3871	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {	3872	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;	3873	$sig->send;
2861	}
2862
2863	_post_tick;
2864	},	3874	}
2865	);	3875
		3876	$LOAD = ($NOW - $TICK_START) / $TICK;
		3877	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3878
		3879	if (0) {
		3880	if ($NEXT_TICK) {
		3881	my $jitter = $TICK_START - $NEXT_TICK;
		3882	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3883	warn "jitter $JITTER\n";#d#
		3884	}
		3885	}
		3886	}
2866		3887
2867	{	3888	{
2868	BDB::max_poll_time $TICK * 0.1;	3889	# configure BDB
2869	$BDB_POLL_WATCHER = Event->io (	3890
2870	reentrant => 0,
2871	fd => BDB::poll_fileno,
2872	poll => 'r',
2873	prio => 0,
2874	data => WF_AUTOCANCEL,
2875	cb => \&BDB::poll_cb,
2876	);
2877	BDB::min_parallel 8;	3891	BDB::min_parallel 8;
2878		3892	BDB::max_poll_reqs $TICK * 0.1;
2879	BDB::set_sync_prepare {	3893	$AnyEvent::BDB::WATCHER->priority (1);
2880	my $status;
2881	my $current = $Coro::current;
2882	(
2883	sub {
2884	$status = $!;
2885	$current->ready; undef $current;
2886	},
2887	sub {
2888	Coro::schedule while defined $current;
2889	$! = $status;
2890	},
2891	)
2892	};
2893		3894
2894	unless ($DB_ENV) {	3895	unless ($DB_ENV) {
2895	$DB_ENV = BDB::db_env_create;	3896	$DB_ENV = BDB::db_env_create;
		3897	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3898	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3899	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3900	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3901	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2896		3902
2897	cf::sync_job {	3903	cf::sync_job {
2898	eval {	3904	eval {
2899	BDB::db_env_open	3905	BDB::db_env_open
2900	$DB_ENV,	3906	$DB_ENV,
…		…
2902	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2903	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2904	0666;	3910	0666;
2905		3911
2906	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2907
2908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2909	$DB_ENV->set_lk_detect;
2910	};	3913	};
2911		3914
2912	cf::cleanup "db_env_open(db): $@" if $@;	3915	cf::cleanup "db_env_open(db): $@" if $@;
2913	};	3916	};
2914	}	3917	}
		3918
		3919	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3920	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3921	};
		3922	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3923	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3924	};
		3925	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3926	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3927	};
2915	}	3928	}
2916		3929
2917	{	3930	{
		3931	# configure IO::AIO
		3932
2918	IO::AIO::min_parallel 8;	3933	IO::AIO::min_parallel 8;
2919
2920	undef $Coro::AIO::WATCHER;
2921	IO::AIO::max_poll_time $TICK * 0.1;	3934	IO::AIO::max_poll_time $TICK * 0.1;
2922	$AIO_POLL_WATCHER = Event->io (	3935	undef $AnyEvent::AIO::WATCHER;
2923	reentrant => 0,
2924	data => WF_AUTOCANCEL,
2925	fd => IO::AIO::poll_fileno,
2926	poll => 'r',
2927	prio => 6,
2928	cb => \&IO::AIO::poll_cb,
2929	);
2930	}	3936	}
2931		3937
2932	my $_log_backtrace;	3938	my $_log_backtrace;
2933		3939
2934	sub _log_backtrace {	3940	sub _log_backtrace {
…		…
2937	$msg =~ s/\n//;	3943	$msg =~ s/\n//;
2938		3944
2939	# limit the # of concurrent backtraces	3945	# limit the # of concurrent backtraces
2940	if ($_log_backtrace < 2) {	3946	if ($_log_backtrace < 2) {
2941	++$_log_backtrace;	3947	++$_log_backtrace;
		3948	my $perl_bt = Carp::longmess $msg;
2942	async {	3949	async {
		3950	$Coro::current->{desc} = "abt $msg";
		3951
2943	my @bt = fork_call {	3952	my @bt = fork_call {
2944	@addr = map { sprintf "%x", $_ } @addr;	3953	@addr = map { sprintf "%x", $_ } @addr;
2945	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	3954	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2946	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	3955	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2947	or die "addr2line: $!";	3956	or die "addr2line: $!";
…		…
2955	}	3964	}
2956		3965
2957	@funcs	3966	@funcs
2958	};	3967	};
2959		3968
2960	LOG llevInfo, "[ABT] $msg\n";	3969	LOG llevInfo, "[ABT] $perl_bt\n";
		3970	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2961	LOG llevInfo, "[ABT] $_\n" for @bt;	3971	LOG llevInfo, "[ABT] $_\n" for @bt;
2962	--$_log_backtrace;	3972	--$_log_backtrace;
2963	};	3973	};
2964	} else {	3974	} else {
2965	LOG llevInfo, "[ABT] $msg\n";	3975	LOG llevInfo, "[ABT] $msg\n";
2966	LOG llevInfo, "[ABT] [suppressed]\n";	3976	LOG llevInfo, "[ABT] [suppressed]\n";
2967	}	3977	}
2968	}	3978	}
2969		3979
2970	# load additional modules	3980	# load additional modules
2971	use cf::pod;	3981	require "cf/$_.pm" for @EXTRA_MODULES;
2972		3982
2973	END { cf::emergency_save }	3983	END { cf::emergency_save }
2974		3984
2975	1	3985	1
2976		3986

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