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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.273 by root, Mon Jun 4 12:19:08 2007 UTC vs.
Revision 1.504 by root, Sat Jan 30 23:50:16 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	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	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$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		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
71		112
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	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	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	115	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
82		124
83	our %CFG;	125	our %CFG;
84		126
85	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
87		130
88	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
91		134
92	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		137
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
98		147
99	binmode STDOUT;	148	binmode STDOUT;
100	binmode STDERR;	149	binmode STDERR;
101		150
102	# read virtual server time, if available	151	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
107	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
108		159
109	mkdir $_	160	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		162
112	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
113		164
114	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		177
116	#############################################################################	178	#############################################################################
117		179
118	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
119		181
…		…
155		217
156	The raw value load value from the last tick.	218	The raw value load value from the last tick.
157		219
158	=item %cf::CFG	220	=item %cf::CFG
159		221
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	223	from wherever your confdir points to.
162		224
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		226
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
169	=back	243	=back
170		244
171	=cut	245	=cut
172		246
173	BEGIN {	247	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	248	my $msg = join "", @_;
176		249
177	$msg .= "\n"	250	$msg .= "\n"
178	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
179		252
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		254
182	utf8::encode $msg;
183	LOG llevError, $msg;	255	LOG llevError, $msg;
184	};	256	};
185	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
186		271
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
…		…
197	for my $pkg (qw(	282	for my $pkg (qw(
198	cf::global cf::attachable	283	cf::global cf::attachable
199	cf::object cf::object::player	284	cf::object cf::object::player
200	cf::client cf::player	285	cf::client cf::player
201	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
202	cf::map cf::party cf::region	288	cf::party cf::region
203	)) {	289	)) {
204	no strict 'refs';
205	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
206	}	291	}
207		292
208	$Event::DIED = sub {	293	$EV::DIED = sub {
209	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
210	};	295	};
		296
		297	#############################################################################
211		298
212	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
213		300
214	=over 4	301	=over 4
215		302
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	322	$d
236	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
237	}	324	}
238		325
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
242		327
243	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
244		329
245	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
246		331
247	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
248		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
249	=item cf::lock_wait $string	355	=item cf::lock_wait $string
250		356
251	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
252		358
253	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
254		360
255	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
258	returned.	364	returned.
259		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
260	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
262		371
263	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
264		373
265	Return true if the lock is currently active, i.e. somebody has locked it.	374	Return true if the lock is currently active, i.e. somebody has locked it.
266		375
267	=cut	376	=cut
268		377
269	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
270		379
271	sub lock_wait($) {	380	sub lock_wait($) {
272	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
273
274	# wait for lock, if any
275	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;
278	}
279	}	382	}
280		383
281	sub lock_acquire($) {	384	sub lock_acquire($) {
282	my ($key) = @_;	385	$LOCKS->guard ($_[0])
283
284	# wait, to be sure we are not locked
285	lock_wait $key;
286
287	$LOCK{$key} = [];
288
289	Coro::guard {
290	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };
292	}
293	}	386	}
294		387
295	sub lock_active($) {	388	sub lock_active($) {
296	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
297
298	! ! $LOCK{$key}
299	}	390	}
300		391
301	sub freeze_mainloop {	392	sub freeze_mainloop {
302	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
303		394
304	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
305	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
306	};	462	}
307	$TICK_WATCHER->stop;	463	};
308	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
309	}	478	}
310		479
311	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
312		481
313	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
318		487
319	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
320		489
321	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
322		491
323	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
326		496
327	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
330	fast or be very important.	500	fast or be very important.
…		…
333		503
334	sub sync_job(&) {	504	sub sync_job(&) {
335	my ($job) = @_;	505	my ($job) = @_;
336		506
337	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
338	my $time = Event::time;	508	my $time = EV::time;
339		509
340	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
341	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
342		512
343	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
344	# (but this is cancel-safe)	514
345	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
346		516
347	my $busy = 1;	517	my $busy = 1;
348	my @res;	518	my @res;
349		519
350	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
351	@res = eval { $job->() };	522	@res = eval { $job->() };
352	warn $@ if $@;	523	warn $@ if $@;
353	undef $busy;	524	undef $busy;
354	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
355		526
356	while ($busy) {	527	while ($busy) {
357	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
358	}	532	}
		533	}
359		534
360	$time = Event::time - $time;	535	my $time = EV::time - $time;
361		536
362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
364
365	$tick_start += $time; # do not account sync jobs to server load	537	$TICK_START += $time; # do not account sync jobs to server load
366		538
367	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
368	} else {	540	} else {
369	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
370		542
…		…
390	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
391		563
392	$coro	564	$coro
393	}	565	}
394		566
395	sub write_runtime {	567	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		568
398	# first touch the runtime file to show we are still running:	569	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
400		573
401	IO::AIO::aio_utime $runtime, undef, undef;	574	=cut
402		575
403	my $guard = cf::lock_acquire "write_runtime";	576	sub fork_call(&@) {
		577	my ($cb, @args) = @_;
404		578
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	# we seemingly have to make a local copy of the whole thing,
406	or return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
407		582
408	my $value = $cf::RUNTIME + 90 + 10;	583	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	584	reset_signals;
410	# 60 allows for the watchdog to kill the server.	585	&$cb
		586	}, @args;
411		587
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	588	wantarray ? @res : $res[-1]
413	and return;	589	}
414		590
415	# always fsync - this file is important	591	=item $coin = coin_from_name $name
416	aio_fsync $fh
417	and return;
418		592
419	# touch it again to show we are up-to-date	593	=cut
420	aio_utime $fh, undef, undef;
421		594
422	close $fh	595	our %coin_alias = (
423	or return;	596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
424		611
425	aio_rename "$runtime~", $runtime	612	sub coin_from_name($) {
426	and return;	613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
427		617
428	warn "runtime file written.\n";#d#	618	=item $value = cf::db_get $family => $key
429		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
430	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
431	}	743	}
432		744
433	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
434		746
435	Log a datalog packet of the given type with the given key-value pairs.	747	Log a datalog packet of the given type with the given key-value pairs.
…		…
447		759
448	#############################################################################	760	#############################################################################
449		761
450	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
451		763
452	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
453	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
455		767
456	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	770	Deliantra).
459		771
460	=over 4	772	=over 4
461		773
462	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
463		775
…		…
507	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
508		820
509	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
511		823
512	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
513	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
514		826
515	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
516		828
517	=over 4	829	=over 4
…		…
665	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
666	}	978	}
667		979
668	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
669	} else {	981	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	983	}
672		984
673	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
674	}	986	}
675		987
…		…
715	";	1027	";
716	die if $@;	1028	die if $@;
717	}	1029	}
718		1030
719	our $override;	1031	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1033
722	sub override {	1034	sub override {
723	$override = 1;	1035	$override = 1;
724	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
725	}	1037	}
726		1038
727	sub do_invoke {	1039	sub do_invoke {
728	my $event = shift;	1040	my $event = shift;
729	my $callbacks = shift;	1041	my $callbacks = shift;
730		1042
731	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
732		1044
733	local $override;	1045	local $override;
734		1046
735	for (@$callbacks) {	1047	for (@$callbacks) {
736	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
745	}	1057	}
746		1058
747	0	1059	0
748	}	1060	}
749		1061
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1063
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1065
754	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
755		1067
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1071
760	=back	1072	=back
761		1073
762	=cut	1074	=cut
763		1075
764	#############################################################################	1076	#############################################################################
765	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
766		1120
767	sub reattach {	1121	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1123	my ($obj) = @_;
770		1124
		1125	# no longer needed after getting rid of delete_package?
771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1127
773	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
774		1129
775	@$registry = ();	1130	@$registry = ();
776		1131
…		…
791	cf::attachable->attach (	1146	cf::attachable->attach (
792	prio => -1000000,	1147	prio => -1000000,
793	on_instantiate => sub {	1148	on_instantiate => sub {
794	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
795		1150
796	$data = from_json $data;	1151	$data = decode_json $data;
797		1152
798	for (@$data) {	1153	for (@$data) {
799	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
800		1155
801	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1172	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
819		1174
820	sync_job {	1175	sync_job {
821	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
824		1180
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	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;
		1186	aio_fsync $fh;
		1187	}
829	close $fh;	1188	aio_close $fh;
830		1189
831	if (@$objs) {	1190	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	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;
		1197	aio_fsync $fh;
		1198	}
837	close $fh;	1199	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
839	}	1201	}
840	} else {	1202	} else {
841	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
842	}	1204	}
843		1205
844	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1210	} else {
846	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
847	}	1212	}
848	} else {	1213	} else {
849	aio_unlink $filename;	1214	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
851	}	1216	}
852	}	1217	};
853	}	1218	}
854		1219
855	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
857		1222
…		…
869	or return;	1234	or return;
870		1235
871	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
873	or return;	1238	or return;
		1239
874	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
875	}	1242	}
876		1243
		1244	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1246	$decname, length $data, scalar @{$av || []};
		1247
879	return ($data, $av);	1248	($data, $av)
880	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
881		1256
882	#############################################################################	1257	#############################################################################
883	# command handling &c	1258	# command handling &c
884		1259
885	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1274	}
900		1275
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1277
903	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
904		1283
905	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
906	called.	1285	called.
907		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
908	=cut	1298	=cut
909		1299
910	sub register_extcmd {	1300	sub register_extcmd {
911	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
912		1302
913	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
914	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
915		1313
916	cf::player->attach (	1314	cf::player->attach (
917	on_command => sub {	1315	on_command => sub {
918	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
919		1317
…		…
927	cf::override;	1325	cf::override;
928	},	1326	},
929	on_extcmd => sub {	1327	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
931		1329
932	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1331
934	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
940	} else {	1347	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1349	}
943		1350
944	cf::override;	1351	cf::override;
945	},	1352	},
946	);	1353	);
947		1354
		1355	# "readahead" all extensions
948	sub load_extension {	1356	sub cache_extensions {
949	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
950		1358
951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
952	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
953	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
954	$pkg =~ s/[^[:word:]]/_/g;
955	$pkg = "ext::$pkg";
956
957	warn "... loading '$path' into '$pkg'\n";
958
959	open my $fh, "<:utf8", $path
960	or die "$path: $!";
961
962	my $source =
963	"package $pkg; use strict; use utf8;\n"
964	. "#line 1 \"$path\"\n{\n"
965	. (do { local $/; <$fh> })
966	. "\n};\n1";
967
968	unless (eval $source) {
969	my $msg = $@ ? "$path: $@\n"
970	: "extension disabled.\n";
971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
972	warn $@;
973	warn "mandatory extension failed to load, exiting.\n";
974	exit 1;
975	}	1362	}
976	die $@;
977	}	1363	};
978		1364
979	push @EXTS, $pkg;	1365	$grp
980	}	1366	}
981		1367
982	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
983	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1373	next unless -r $path;
985	eval {	1374
986	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my %done;
		1405	while (%todo) {
		1406	my $progress;
		1407
		1408	while (my ($k, $v) = each %todo) {
		1409	for (split /,\s*/, $v->{meta}{depends}) {
		1410	goto skip
		1411	unless exists $done{$_};
		1412	}
		1413
		1414	warn "... loading '$k' into '$v->{pkg}'\n";
		1415
		1416	unless (eval $v->{source}) {
		1417	my $msg = $@ ? "$v->{path}: $@\n"
		1418	: "$v->{base}: extension inactive.\n";
		1419
		1420	if (exists $v->{meta}{mandatory}) {
		1421	warn $msg;
		1422	cf::cleanup "mandatory extension failed to load, exiting.";
		1423	}
		1424
		1425	warn $msg;
		1426	}
		1427
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
987	1	1431	}
988	} or warn "$ext not loaded: $@";	1432
		1433	skip:
		1434	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1435	unless $progress;
		1436	}
989	}	1437	};
990	}	1438	}
991		1439
992	#############################################################################	1440	#############################################################################
993		1441
		1442	=back
		1443
994	=head2 CORE EXTENSIONS	1444	=head2 CORE EXTENSIONS
995		1445
996	Functions and methods that extend core crossfire objects.	1446	Functions and methods that extend core deliantra objects.
997		1447
998	=cut	1448	=cut
999		1449
1000	package cf::player;	1450	package cf::player;
1001		1451
1002	use Coro::AIO;	1452	use Coro::AIO;
1003		1453
1004	=head3 cf::player	1454	=head3 cf::player
1005		1455
1006	=over 4	1456	=over 4
		1457
		1458	=item cf::player::num_playing
		1459
		1460	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1461
		1462	=cut
		1463
		1464	sub num_playing {
		1465	scalar grep
		1466	$_->ob->map
		1467	&& !$_->hidden
		1468	&& !$_->ob->flag (cf::FLAG_WIZ),
		1469	cf::player::list
		1470	}
1007		1471
1008	=item cf::player::find $login	1472	=item cf::player::find $login
1009		1473
1010	Returns the given player object, loading it if necessary (might block).	1474	Returns the given player object, loading it if necessary (might block).
1011		1475
…		…
1030		1494
1031	sub exists($) {	1495	sub exists($) {
1032	my ($login) = @_;	1496	my ($login) = @_;
1033		1497
1034	$cf::PLAYER{$login}	1498	$cf::PLAYER{$login}
1035	or cf::sync_job { !aio_stat path $login }	1499	or !aio_stat path $login
1036	}	1500	}
1037		1501
1038	sub find($) {	1502	sub find($) {
1039	return $cf::PLAYER{$_[0]} || do {	1503	return $cf::PLAYER{$_[0]} || do {
1040	my $login = $_[0];	1504	my $login = $_[0];
…		…
1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1511	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1512	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1513	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1050	aio_unlink +(playerdir $login) . "/$login.pl";	1514	aio_unlink +(playerdir $login) . "/$login.pl";
1051		1515
1052	my $pl = load_pl path $login	1516	my $f = new_from_file cf::object::thawer path $login
1053	or return;	1517	or return;
		1518
		1519	my $pl = cf::player::load_pl $f
		1520	or return;
		1521
		1522	local $cf::PLAYER_LOADING{$login} = $pl;
		1523	$f->resolve_delayed_derefs;
1054	$cf::PLAYER{$login} = $pl	1524	$cf::PLAYER{$login} = $pl
1055	}	1525	}
1056	}	1526	}
1057	}	1527	}
1058		1528
…		…
1067	return if $pl->{deny_save};	1537	return if $pl->{deny_save};
1068		1538
1069	aio_mkdir playerdir $pl, 0770;	1539	aio_mkdir playerdir $pl, 0770;
1070	$pl->{last_save} = $cf::RUNTIME;	1540	$pl->{last_save} = $cf::RUNTIME;
1071		1541
		1542	cf::get_slot 0.01;
		1543
1072	$pl->save_pl ($path);	1544	$pl->save_pl ($path);
1073	Coro::cede;	1545	cf::cede_to_tick;
1074	}	1546	}
1075		1547
1076	sub new($) {	1548	sub new($) {
1077	my ($login) = @_;	1549	my ($login) = @_;
1078		1550
…		…
1084	$cf::PLAYER{$login} = $self;	1556	$cf::PLAYER{$login} = $self;
1085		1557
1086	$self	1558	$self
1087	}	1559	}
1088		1560
		1561	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1562
		1563	=cut
		1564
		1565	sub send_msg {
		1566	my $ns = shift->ns
		1567	or return;
		1568	$ns->send_msg (@_);
		1569	}
		1570
1089	=item $pl->quit_character	1571	=item $pl->quit_character
1090		1572
1091	Nukes the player without looking back. If logged in, the connection will	1573	Nukes the player without looking back. If logged in, the connection will
1092	be destroyed. May block for a long time.	1574	be destroyed. May block for a long time.
1093		1575
…		…
1097	my ($pl) = @_;	1579	my ($pl) = @_;
1098		1580
1099	my $name = $pl->ob->name;	1581	my $name = $pl->ob->name;
1100		1582
1101	$pl->{deny_save} = 1;	1583	$pl->{deny_save} = 1;
1102	$pl->password ("*"); # this should lock out the player until we nuked the dir	1584	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1103		1585
1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1586	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1105	$pl->deactivate;	1587	$pl->deactivate;
		1588	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1589	$pl->ob->check_score;
1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1590	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1107	$pl->ns->destroy if $pl->ns;	1591	$pl->ns->destroy if $pl->ns;
1108		1592
1109	my $path = playerdir $pl;	1593	my $path = playerdir $pl;
1110	my $temp = "$path~$cf::RUNTIME~deleting~";	1594	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1146	or return [];	1630	or return [];
1147		1631
1148	my @logins;	1632	my @logins;
1149		1633
1150	for my $login (@$dirs) {	1634	for my $login (@$dirs) {
		1635	my $path = path $login;
		1636
		1637	# a .pst is a dead give-away for a valid player
		1638	# if no pst file found, open and chekc for blocked users
		1639	if (aio_stat "$path.pst") {
1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1640	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1152	aio_read $fh, 0, 512, my $buf, 0 or next;	1641	aio_read $fh, 0, 512, my $buf, 0 or next;
1153	$buf !~ /^password -------------$/m or next; # official not-valid tag	1642	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1643	}
1154		1644
1155	utf8::decode $login;	1645	utf8::decode $login;
1156	push @logins, $login;	1646	push @logins, $login;
1157	}	1647	}
1158		1648
…		…
1185	}	1675	}
1186		1676
1187	\@paths	1677	\@paths
1188	}	1678	}
1189		1679
		1680	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1681
		1682	Expand deliantra pod fragments into protocol xml.
		1683
1190	=item $player->ext_reply ($msgid, %msg)	1684	=item $player->ext_reply ($msgid, @msg)
1191		1685
1192	Sends an ext reply to the player.	1686	Sends an ext reply to the player.
1193		1687
1194	=cut	1688	=cut
1195		1689
1196	sub ext_reply($$%) {	1690	sub ext_reply($$@) {
1197	my ($self, $id, %msg) = @_;	1691	my ($self, $id, @msg) = @_;
1198		1692
1199	$msg{msgid} = $id;	1693	$self->ns->ext_reply ($id, @msg)
1200
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1694	}
1203		1695
1204	=item $player->ext_event ($type, %msg)	1696	=item $player->ext_msg ($type, @msg)
1205		1697
1206	Sends an ext event to the client.	1698	Sends an ext event to the client.
1207		1699
1208	=cut	1700	=cut
1209		1701
1210	sub ext_event($$%) {	1702	sub ext_msg($$@) {
1211	my ($self, $type, %msg) = @_;	1703	my ($self, $type, @msg) = @_;
1212		1704
1213	$self->ns->ext_event ($type, %msg);	1705	$self->ns->ext_msg ($type, @msg);
1214	}	1706	}
1215		1707
1216	=head3 cf::region	1708	=head3 cf::region
1217		1709
1218	=over 4	1710	=over 4
…		…
1221		1713
1222	package cf::region;	1714	package cf::region;
1223		1715
1224	=item cf::region::find_by_path $path	1716	=item cf::region::find_by_path $path
1225		1717
1226	Tries to decuce the probable region for a map knowing only its path.	1718	Tries to decuce the likely region for a map knowing only its path.
1227		1719
1228	=cut	1720	=cut
1229		1721
1230	sub find_by_path($) {	1722	sub find_by_path($) {
1231	my ($path) = @_;	1723	my ($path) = @_;
1232		1724
1233	my ($match, $specificity);	1725	my ($match, $specificity);
1234		1726
1235	for my $region (list) {	1727	for my $region (list) {
1236	if ($region->match && $path =~ $region->match) {	1728	if ($region->{match} && $path =~ $region->{match}) {
1237	($match, $specificity) = ($region, $region->specificity)	1729	($match, $specificity) = ($region, $region->specificity)
1238	if $region->specificity > $specificity;	1730	if $region->specificity > $specificity;
1239	}	1731	}
1240	}	1732	}
1241		1733
…		…
1262	our $MAX_RESET = 3600;	1754	our $MAX_RESET = 3600;
1263	our $DEFAULT_RESET = 3000;	1755	our $DEFAULT_RESET = 3000;
1264		1756
1265	sub generate_random_map {	1757	sub generate_random_map {
1266	my ($self, $rmp) = @_;	1758	my ($self, $rmp) = @_;
		1759
		1760	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1761
1267	# mit "rum" bekleckern, nicht	1762	# mit "rum" bekleckern, nicht
1268	$self->_create_random_map (	1763	$self->_create_random_map (
1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1764	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1765	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1766	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1305	my ($self, $merge) = @_;	1800	my ($self, $merge) = @_;
1306		1801
1307	# we have to keep some variables in memory intact	1802	# we have to keep some variables in memory intact
1308	local $self->{path};	1803	local $self->{path};
1309	local $self->{load_path};	1804	local $self->{load_path};
1310	local $self->{deny_save};
1311	local $self->{deny_reset};
1312		1805
1313	$self->SUPER::thawer_merge ($merge);	1806	$self->SUPER::thawer_merge ($merge);
1314	}	1807	}
1315		1808
1316	sub normalise {	1809	sub normalise {
…		…
1363	$self->init; # pass $1 etc.	1856	$self->init; # pass $1 etc.
1364	return $self;	1857	return $self;
1365	}	1858	}
1366	}	1859	}
1367		1860
1368	Carp::carp "unable to resolve path '$path' (base '$base').";	1861	Carp::cluck "unable to resolve path '$path' (base '$base').";
1369	()	1862	()
1370	}	1863	}
1371		1864
1372	sub init {	1865	sub init {
1373	my ($self) = @_;	1866	my ($self) = @_;
…		…
1395		1888
1396	# the temporary/swap location	1889	# the temporary/swap location
1397	sub save_path {	1890	sub save_path {
1398	my ($self) = @_;	1891	my ($self) = @_;
1399		1892
1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1401	"$TMPDIR/$path.map"	1894	"$TMPDIR/$path.map"
1402	}	1895	}
1403		1896
1404	# the unique path, undef == no special unique path	1897	# the unique path, undef == no special unique path
1405	sub uniq_path {	1898	sub uniq_path {
1406	my ($self) = @_;	1899	my ($self) = @_;
1407		1900
1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1901	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1409	"$UNIQUEDIR/$path"	1902	"$UNIQUEDIR/$path"
1410	}	1903	}
1411		1904
1412	# and all this just because we cannot iterate over	1905	sub decay_objects {
1413	# all maps in C++...
1414	sub change_all_map_light {
1415	my ($change) = @_;	1906	my ($self) = @_;
1416		1907
1417	$_->change_map_light ($change)	1908	return if $self->{deny_reset};
1418	for grep $_->outdoor, values %cf::MAP;	1909
		1910	$self->do_decay_objects;
1419	}	1911	}
1420		1912
1421	sub unlink_save {	1913	sub unlink_save {
1422	my ($self) = @_;	1914	my ($self) = @_;
1423		1915
…		…
1428		1920
1429	sub load_header_from($) {	1921	sub load_header_from($) {
1430	my ($self, $path) = @_;	1922	my ($self, $path) = @_;
1431		1923
1432	utf8::encode $path;	1924	utf8::encode $path;
1433	#aio_open $path, O_RDONLY, 0	1925	my $f = new_from_file cf::object::thawer $path
1434	# or return;
1435
1436	$self->_load_header ($path)
1437	or return;	1926	or return;
		1927
		1928	$self->_load_header ($f)
		1929	or return;
		1930
		1931	local $MAP_LOADING{$self->{path}} = $self;
		1932	$f->resolve_delayed_derefs;
1438		1933
1439	$self->{load_path} = $path;	1934	$self->{load_path} = $path;
1440		1935
1441	1	1936	1
1442	}	1937	}
…		…
1481	$self->load_header_orig	1976	$self->load_header_orig
1482	or return;	1977	or return;
1483	$self->prepare_orig;	1978	$self->prepare_orig;
1484	}	1979	}
1485		1980
		1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
		1983
1486	$self->default_region (cf::region::find_by_path $self->{path})	1984	$self->default_region (cf::region::find_by_path $self->{path})
1487	unless $self->default_region;	1985	unless $self->default_region;
1488		1986
1489	1	1987	1
1490	}	1988	}
…		…
1493	sub find {	1991	sub find {
1494	my ($path, $origin) = @_;	1992	my ($path, $origin) = @_;
1495		1993
1496	$path = normalise $path, $origin && $origin->path;	1994	$path = normalise $path, $origin && $origin->path;
1497		1995
		1996	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1498	cf::lock_wait "map_find:$path";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
1499		1998
1500	$cf::MAP{$path} || do {	1999	$cf::MAP{$path} || do {
1501	my $guard = cf::lock_acquire "map_find:$path";
1502	my $map = new_from_path cf::map $path	2000	my $map = new_from_path cf::map $path
1503	or return;	2001	or return;
1504		2002
1505	$map->{last_save} = $cf::RUNTIME;	2003	$map->{last_save} = $cf::RUNTIME;
1506		2004
1507	$map->load_header	2005	$map->load_header
1508	or return;	2006	or return;
1509		2007
1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2008	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1511	# doing this can freeze the server in a sync job, obviously	2009	# doing this can freeze the server in a sync job, obviously
1512	#$cf::WAIT_FOR_TICK->wait;	2010	#$cf::WAIT_FOR_TICK->wait;
		2011	undef $guard2;
		2012	undef $guard1;
1513	$map->reset;	2013	$map->reset;
1514	undef $guard;
1515	return find $path;	2014	return find $path;
1516	}	2015	}
1517		2016
1518	$cf::MAP{$path} = $map	2017	$cf::MAP{$path} = $map
1519	}	2018	}
1520	}	2019	}
1521		2020
1522	sub pre_load { }	2021	sub pre_load { }
1523	sub post_load { }	2022	#sub post_load { } # XS
1524		2023
1525	sub load {	2024	sub load {
1526	my ($self) = @_;	2025	my ($self) = @_;
1527		2026
1528	local $self->{deny_reset} = 1; # loading can take a long time	2027	local $self->{deny_reset} = 1; # loading can take a long time
1529		2028
1530	my $path = $self->{path};	2029	my $path = $self->{path};
1531		2030
1532	{	2031	{
1533	my $guard = cf::lock_acquire "map_load:$path";	2032	my $guard = cf::lock_acquire "map_data:$path";
1534		2033
		2034	return unless $self->valid;
1535	return if $self->in_memory != cf::MAP_SWAPPED;	2035	return unless $self->in_memory == cf::MAP_SWAPPED;
1536		2036
1537	$self->in_memory (cf::MAP_LOADING);	2037	$self->in_memory (cf::MAP_LOADING);
1538		2038
1539	$self->alloc;	2039	$self->alloc;
1540		2040
1541	$self->pre_load;	2041	$self->pre_load;
1542	Coro::cede;	2042	cf::cede_to_tick;
1543		2043
		2044	my $f = new_from_file cf::object::thawer $self->{load_path};
		2045	$f->skip_block;
1544	$self->_load_objects ($self->{load_path}, 1)	2046	$self->_load_objects ($f)
1545	or return;	2047	or return;
1546		2048
1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2049	$self->post_load_original
1548	if delete $self->{load_original};	2050	if delete $self->{load_original};
1549		2051
1550	if (my $uniq = $self->uniq_path) {	2052	if (my $uniq = $self->uniq_path) {
1551	utf8::encode $uniq;	2053	utf8::encode $uniq;
1552	if (aio_open $uniq, O_RDONLY, 0) {	2054	unless (aio_stat $uniq) {
		2055	if (my $f = new_from_file cf::object::thawer $uniq) {
1553	$self->clear_unique_items;	2056	$self->clear_unique_items;
1554	$self->_load_objects ($uniq, 0);	2057	$self->_load_objects ($f);
		2058	$f->resolve_delayed_derefs;
		2059	}
1555	}	2060	}
1556	}	2061	}
1557		2062
1558	Coro::cede;	2063	$f->resolve_delayed_derefs;
		2064
		2065	cf::cede_to_tick;
1559	# now do the right thing for maps	2066	# now do the right thing for maps
1560	$self->link_multipart_objects;	2067	$self->link_multipart_objects;
1561	$self->difficulty ($self->estimate_difficulty)	2068	$self->difficulty ($self->estimate_difficulty)
1562	unless $self->difficulty;	2069	unless $self->difficulty;
1563	Coro::cede;	2070	cf::cede_to_tick;
1564		2071
1565	unless ($self->{deny_activate}) {	2072	unless ($self->{deny_activate}) {
1566	$self->decay_objects;	2073	$self->decay_objects;
1567	$self->fix_auto_apply;	2074	$self->fix_auto_apply;
1568	$self->update_buttons;	2075	$self->update_buttons;
1569	Coro::cede;	2076	cf::cede_to_tick;
1570	$self->set_darkness_map;
1571	Coro::cede;
1572	$self->activate;	2077	$self->activate;
1573	}	2078	}
1574		2079
		2080	$self->{last_save} = $cf::RUNTIME;
		2081	$self->last_access ($cf::RUNTIME);
		2082
1575	$self->in_memory (cf::MAP_IN_MEMORY);	2083	$self->in_memory (cf::MAP_ACTIVE);
1576	}	2084	}
1577		2085
1578	$self->post_load;	2086	$self->post_load;
1579	}	2087	}
1580		2088
…		…
1582	my ($self, $ob) = @_;	2090	my ($self, $ob) = @_;
1583		2091
1584	return find "~" . $ob->name . "/" . $self->{path}	2092	return find "~" . $ob->name . "/" . $self->{path}
1585	if $self->per_player;	2093	if $self->per_player;
1586		2094
		2095	# return find "?party/" . $ob->name . "/" . $self->{path}
		2096	# if $self->per_party;
		2097
1587	$self	2098	$self
1588	}	2099	}
1589		2100
1590	# find and load all maps in the 3x3 area around a map	2101	# find and load all maps in the 3x3 area around a map
1591	sub load_diag {	2102	sub load_neighbours {
1592	my ($map) = @_;	2103	my ($map) = @_;
1593		2104
1594	my @diag; # diagonal neighbours	2105	my @neigh; # diagonal neighbours
1595		2106
1596	for (0 .. 3) {	2107	for (0 .. 3) {
1597	my $neigh = $map->tile_path ($_)	2108	my $neigh = $map->tile_path ($_)
1598	or next;	2109	or next;
1599	$neigh = find $neigh, $map	2110	$neigh = find $neigh, $map
1600	or next;	2111	or next;
1601	$neigh->load;	2112	$neigh->load;
1602		2113
		2114	push @neigh,
1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2115	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2116	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1605	}	2117	}
1606		2118
1607	for (@diag) {	2119	for (grep defined $_->[0], @neigh) {
		2120	my ($path, $origin) = @$_;
1608	my $neigh = find @$_	2121	my $neigh = find $path, $origin
1609	or next;	2122	or next;
1610	$neigh->load;	2123	$neigh->load;
1611	}	2124	}
1612	}	2125	}
1613		2126
…		…
1618	}	2131	}
1619		2132
1620	sub do_load_sync {	2133	sub do_load_sync {
1621	my ($map) = @_;	2134	my ($map) = @_;
1622		2135
		2136	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2137	if $Coro::current == $Coro::main;
		2138
1623	cf::sync_job { $map->load };	2139	cf::sync_job { $map->load };
1624	}	2140	}
1625		2141
1626	our %MAP_PREFETCH;	2142	our %MAP_PREFETCH;
1627	our $MAP_PREFETCHER = undef;	2143	our $MAP_PREFETCHER = undef;
1628		2144
1629	sub find_async {	2145	sub find_async {
1630	my ($path, $origin) = @_;	2146	my ($path, $origin, $load) = @_;
1631		2147
1632	$path = normalise $path, $origin && $origin->{path};	2148	$path = normalise $path, $origin && $origin->{path};
1633		2149
1634	if (my $map = $cf::MAP{$path}) {	2150	if (my $map = $cf::MAP{$path}) {
1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2151	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1636	}	2152	}
1637		2153
1638	undef $MAP_PREFETCH{$path};	2154	$MAP_PREFETCH{$path} |= $load;
		2155
1639	$MAP_PREFETCHER ||= cf::async {	2156	$MAP_PREFETCHER ||= cf::async {
		2157	$Coro::current->{desc} = "map prefetcher";
		2158
1640	while (%MAP_PREFETCH) {	2159	while (%MAP_PREFETCH) {
1641	for my $path (keys %MAP_PREFETCH) {	2160	while (my ($k, $v) = each %MAP_PREFETCH) {
1642	my $map = find $path	2161	if (my $map = find $k) {
1643	or next;
1644	$map->load;	2162	$map->load if $v;
		2163	}
1645		2164
1646	delete $MAP_PREFETCH{$path};	2165	delete $MAP_PREFETCH{$k};
1647	}	2166	}
1648	}	2167	}
1649	undef $MAP_PREFETCHER;	2168	undef $MAP_PREFETCHER;
1650	};	2169	};
1651	$MAP_PREFETCHER->prio (6);	2170	$MAP_PREFETCHER->prio (6);
…		…
1654	}	2173	}
1655		2174
1656	sub save {	2175	sub save {
1657	my ($self) = @_;	2176	my ($self) = @_;
1658		2177
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1660		2179
1661	$self->{last_save} = $cf::RUNTIME;	2180	$self->{last_save} = $cf::RUNTIME;
1662		2181
1663	return unless $self->dirty;	2182	return unless $self->dirty;
1664		2183
…		…
1670	return if $self->{deny_save};	2189	return if $self->{deny_save};
1671		2190
1672	local $self->{last_access} = $self->last_access;#d#	2191	local $self->{last_access} = $self->last_access;#d#
1673		2192
1674	cf::async {	2193	cf::async {
		2194	$Coro::current->{desc} = "map player save";
1675	$_->contr->save for $self->players;	2195	$_->contr->save for $self->players;
1676	};	2196	};
		2197
		2198	cf::get_slot 0.02;
1677		2199
1678	if ($uniq) {	2200	if ($uniq) {
1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2201	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2202	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1681	} else {	2203	} else {
…		…
1687	my ($self) = @_;	2209	my ($self) = @_;
1688		2210
1689	# save first because save cedes	2211	# save first because save cedes
1690	$self->save;	2212	$self->save;
1691		2213
1692	my $lock = cf::lock_acquire "map_data:" . $self->path;	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1693		2215
1694	return if $self->players;	2216	return if $self->players;
1695	return if $self->in_memory != cf::MAP_IN_MEMORY;	2217	return if $self->in_memory != cf::MAP_ACTIVE;
1696	return if $self->{deny_save};	2218	return if $self->{deny_save};
1697		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	$self->deactivate;
		2223	$_->clear_links_to ($self) for values %cf::MAP;
1698	$self->clear;	2224	$self->clear;
1699	$self->in_memory (cf::MAP_SWAPPED);
1700	}	2225	}
1701		2226
1702	sub reset_at {	2227	sub reset_at {
1703	my ($self) = @_;	2228	my ($self) = @_;
1704		2229
1705	# TODO: safety, remove and allow resettable per-player maps	2230	# TODO: safety, remove and allow resettable per-player maps
1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1707	return 1e99 if $self->{deny_reset};	2231	return 1e99 if $self->{deny_reset};
1708		2232
1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2233	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2234	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1711		2235
…		…
1722	my ($self) = @_;	2246	my ($self) = @_;
1723		2247
1724	my $lock = cf::lock_acquire "map_data:$self->{path}";	2248	my $lock = cf::lock_acquire "map_data:$self->{path}";
1725		2249
1726	return if $self->players;	2250	return if $self->players;
1727	return if $self->isa ("ext::map_per_player");#d#
1728		2251
1729	warn "resetting map ", $self->path;#d#	2252	warn "resetting map ", $self->path, "\n";
1730		2253
1731	$self->in_memory (cf::MAP_SWAPPED);	2254	$self->in_memory (cf::MAP_SWAPPED);
1732		2255
1733	# need to save uniques path	2256	# need to save uniques path
1734	unless ($self->{deny_save}) {	2257	unless ($self->{deny_save}) {
…		…
1738	if $uniq;	2261	if $uniq;
1739	}	2262	}
1740		2263
1741	delete $cf::MAP{$self->path};	2264	delete $cf::MAP{$self->path};
1742		2265
		2266	$self->deactivate;
		2267	$_->clear_links_to ($self) for values %cf::MAP;
1743	$self->clear;	2268	$self->clear;
1744
1745	$_->clear_links_to ($self) for values %cf::MAP;
1746		2269
1747	$self->unlink_save;	2270	$self->unlink_save;
1748	$self->destroy;	2271	$self->destroy;
1749	}	2272	}
1750		2273
1751	my $nuke_counter = "aaaa";	2274	my $nuke_counter = "aaaa";
1752		2275
1753	sub nuke {	2276	sub nuke {
1754	my ($self) = @_;	2277	my ($self) = @_;
1755		2278
		2279	{
		2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2281
1756	delete $cf::MAP{$self->path};	2282	delete $cf::MAP{$self->path};
1757		2283
1758	$self->unlink_save;	2284	$self->unlink_save;
1759		2285
1760	bless $self, "cf::map";	2286	bless $self, "cf::map";
1761	delete $self->{deny_reset};	2287	delete $self->{deny_reset};
1762	$self->{deny_save} = 1;	2288	$self->{deny_save} = 1;
1763	$self->reset_timeout (1);	2289	$self->reset_timeout (1);
1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2290	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1765		2291
1766	$cf::MAP{$self->path} = $self;	2292	$cf::MAP{$self->path} = $self;
		2293	}
1767		2294
1768	$self->reset; # polite request, might not happen	2295	$self->reset; # polite request, might not happen
		2296	}
		2297
		2298	=item $maps = cf::map::tmp_maps
		2299
		2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	maps. May block.
		2302
		2303	=cut
		2304
		2305	sub tmp_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise $_
		2311	: ()
		2312	} @{ aio_readdir $TMPDIR or [] }
		2313	]
		2314	}
		2315
		2316	=item $maps = cf::map::random_maps
		2317
		2318	Returns an arrayref with all map paths of currently instantiated and saved
		2319	random maps. May block.
		2320
		2321	=cut
		2322
		2323	sub random_maps() {
		2324	[
		2325	map {
		2326	utf8::decode $_;
		2327	/\.map$/
		2328	? normalise "?random/$_"
		2329	: ()
		2330	} @{ aio_readdir $RANDOMDIR or [] }
		2331	]
1769	}	2332	}
1770		2333
1771	=item cf::map::unique_maps	2334	=item cf::map::unique_maps
1772		2335
1773	Returns an arrayref of paths of all shared maps that have	2336	Returns an arrayref of paths of all shared maps that have
1774	instantiated unique items. May block.	2337	instantiated unique items. May block.
1775		2338
1776	=cut	2339	=cut
1777		2340
1778	sub unique_maps() {	2341	sub unique_maps() {
1779	my $files = aio_readdir $UNIQUEDIR	2342	[
1780	or return;	2343	map {
1781
1782	my @paths;
1783
1784	for (@$files) {
1785	utf8::decode $_;	2344	utf8::decode $_;
1786	next if /\.pst$/;	2345	s/\.map$//; # TODO future compatibility hack
1787	next unless /^$PATH_SEP/o;	2346	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1788		2347	? ()
1789	push @paths, cf::map::normalise $_;	2348	: normalise $_
		2349	} @{ aio_readdir $UNIQUEDIR or [] }
1790	}	2350	]
1791
1792	\@paths
1793	}	2351	}
1794		2352
1795	package cf;	2353	=item cf::map::static_maps
		2354
		2355	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2356	file in the shared directory excluding F</styles> and F</editor>). May
		2357	block.
		2358
		2359	=cut
		2360
		2361	sub static_maps() {
		2362	my @dirs = "";
		2363	my @maps;
		2364
		2365	while (@dirs) {
		2366	my $dir = shift @dirs;
		2367
		2368	next if $dir eq "/styles" || $dir eq "/editor";
		2369
		2370	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2371	or return;
		2372
		2373	for (@$files) {
		2374	s/\.map$// or next;
		2375	utf8::decode $_;
		2376	push @maps, "$dir/$_";
		2377	}
		2378
		2379	push @dirs, map "$dir/$_", @$dirs;
		2380	}
		2381
		2382	\@maps
		2383	}
1796		2384
1797	=back	2385	=back
1798		2386
1799	=head3 cf::object	2387	=head3 cf::object
1800		2388
…		…
1804		2392
1805	=over 4	2393	=over 4
1806		2394
1807	=item $ob->inv_recursive	2395	=item $ob->inv_recursive
1808		2396
1809	Returns the inventory of the object _and_ their inventories, recursively.	2397	Returns the inventory of the object I<and> their inventories, recursively,
		2398	but I<not> the object itself.
1810		2399
1811	=cut	2400	=cut
1812		2401
1813	sub inv_recursive_;	2402	sub inv_recursive_;
1814	sub inv_recursive_ {	2403	sub inv_recursive_ {
…		…
1817		2406
1818	sub inv_recursive {	2407	sub inv_recursive {
1819	inv_recursive_ inv $_[0]	2408	inv_recursive_ inv $_[0]
1820	}	2409	}
1821		2410
		2411	=item $ref = $ob->ref
		2412
		2413	Creates and returns a persistent reference to an object that can be stored as a string.
		2414
		2415	=item $ob = cf::object::deref ($refstring)
		2416
		2417	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2418	even if the object actually exists. May block.
		2419
		2420	=cut
		2421
		2422	sub deref {
		2423	my ($ref) = @_;
		2424
		2425	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2426	my ($uuid, $name) = ($1, $2);
		2427	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2428	or return;
		2429	$pl->ob->uuid eq $uuid
		2430	or return;
		2431
		2432	$pl->ob
		2433	} else {
		2434	warn "$ref: cannot resolve object reference\n";
		2435	undef
		2436	}
		2437	}
		2438
1822	package cf;	2439	package cf;
1823		2440
1824	=back	2441	=back
1825		2442
1826	=head3 cf::object::player	2443	=head3 cf::object::player
…		…
1832	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2449	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1833	can be C<undef>. Does the right thing when the player is currently in a	2450	can be C<undef>. Does the right thing when the player is currently in a
1834	dialogue with the given NPC character.	2451	dialogue with the given NPC character.
1835		2452
1836	=cut	2453	=cut
		2454
		2455	our $SAY_CHANNEL = {
		2456	id => "say",
		2457	title => "Map",
		2458	reply => "say ",
		2459	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2460	};
		2461
		2462	our $CHAT_CHANNEL = {
		2463	id => "chat",
		2464	title => "Chat",
		2465	reply => "chat ",
		2466	tooltip => "Player chat and shouts, global to the server.",
		2467	};
1837		2468
1838	# rough implementation of a future "reply" method that works	2469	# rough implementation of a future "reply" method that works
1839	# with dialog boxes.	2470	# with dialog boxes.
1840	#TODO: the first argument must go, split into a $npc->reply_to ( method	2471	#TODO: the first argument must go, split into a $npc->reply_to ( method
1841	sub cf::object::player::reply($$$;$) {	2472	sub cf::object::player::reply($$$;$) {
…		…
1843		2474
1844	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2475	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1845		2476
1846	if ($self->{record_replies}) {	2477	if ($self->{record_replies}) {
1847	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2478	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2479
1848	} else {	2480	} else {
		2481	my $pl = $self->contr;
		2482
		2483	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2484	my $dialog = $pl->{npc_dialog};
		2485	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2486
		2487	} else {
1849	$msg = $npc->name . " says: $msg" if $npc;	2488	$msg = $npc->name . " says: $msg" if $npc;
1850	$self->message ($msg, $flags);	2489	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2490	}
1851	}	2491	}
		2492	}
		2493
		2494	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2495
		2496	=cut
		2497
		2498	sub cf::object::send_msg {
		2499	my $pl = shift->contr
		2500	or return;
		2501	$pl->send_msg (@_);
1852	}	2502	}
1853		2503
1854	=item $player_object->may ("access")	2504	=item $player_object->may ("access")
1855		2505
1856	Returns wether the given player is authorized to access resource "access"	2506	Returns wether the given player is authorized to access resource "access"
…		…
1869		2519
1870	=item $player_object->enter_link	2520	=item $player_object->enter_link
1871		2521
1872	Freezes the player and moves him/her to a special map (C<{link}>).	2522	Freezes the player and moves him/her to a special map (C<{link}>).
1873		2523
1874	The player should be reasonably safe there for short amounts of time. You	2524	The player should be reasonably safe there for short amounts of time (e.g.
1875	I<MUST> call C<leave_link> as soon as possible, though.	2525	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2526	though, as the palyer cannot control the character while it is on the link
		2527	map.
1876		2528
1877	Will never block.	2529	Will never block.
1878		2530
1879	=item $player_object->leave_link ($map, $x, $y)	2531	=item $player_object->leave_link ($map, $x, $y)
1880		2532
…		…
1932	($x, $y) = (-1, -1)	2584	($x, $y) = (-1, -1)
1933	unless (defined $x) && (defined $y);	2585	unless (defined $x) && (defined $y);
1934		2586
1935	# use -1 or undef as default coordinates, not 0, 0	2587	# use -1 or undef as default coordinates, not 0, 0
1936	($x, $y) = ($map->enter_x, $map->enter_y)	2588	($x, $y) = ($map->enter_x, $map->enter_y)
1937	if $x <=0 && $y <= 0;	2589	if $x <= 0 && $y <= 0;
1938		2590
1939	$map->load;	2591	$map->load;
1940	$map->load_diag;	2592	$map->load_neighbours;
1941		2593
1942	return unless $self->contr->active;	2594	return unless $self->contr->active;
1943	$self->activate_recursive;
1944		2595
1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2596	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1946	$self->enter_map ($map, $x, $y);	2597	$self->enter_map ($map, $x, $y);
1947	}
1948		2598
		2599	# only activate afterwards, to support waiting in hooks
		2600	$self->activate_recursive;
		2601	}
		2602
1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2603	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1950		2604
1951	Moves the player to the given map-path and coordinates by first freezing	2605	Moves the player to the given map-path and coordinates by first freezing
1952	her, loading and preparing them map, calling the provided $check callback	2606	her, loading and preparing them map, calling the provided $check callback
1953	that has to return the map if sucecssful, and then unfreezes the player on	2607	that has to return the map if sucecssful, and then unfreezes the player on
1954	the new (success) or old (failed) map position.	2608	the new (success) or old (failed) map position. In either case, $done will
		2609	be called at the end of this process.
		2610
		2611	Note that $check will be called with a potentially non-loaded map, so if
		2612	it needs a loaded map it has to call C<< ->load >>.
1955		2613
1956	=cut	2614	=cut
1957		2615
1958	our $GOTOGEN;	2616	our $GOTOGEN;
1959		2617
1960	sub cf::object::player::goto {	2618	sub cf::object::player::goto {
1961	my ($self, $path, $x, $y, $check) = @_;	2619	my ($self, $path, $x, $y, $check, $done) = @_;
1962		2620
1963	# do generation counting so two concurrent goto's will be executed in-order	2621	# do generation counting so two concurrent goto's will be executed in-order
1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2622	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1965		2623
1966	$self->enter_link;	2624	$self->enter_link;
1967		2625
1968	(async {	2626	(async {
		2627	$Coro::current->{desc} = "player::goto $path $x $y";
		2628
		2629	# *tag paths override both path and x|y
		2630	if ($path =~ /^\*(.*)$/) {
		2631	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2632	my $ob = $obs[rand @obs];
		2633
		2634	# see if we actually can go there
		2635	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2636	$ob = $obs[rand @obs];
		2637	} else {
		2638	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2639	}
		2640	# else put us there anyways for now #d#
		2641
		2642	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2643	} else {
		2644	($path, $x, $y) = (undef, undef, undef);
		2645	}
		2646	}
		2647
1969	my $map = eval {	2648	my $map = eval {
1970	my $map = cf::map::find $path;	2649	my $map = defined $path ? cf::map::find $path : undef;
1971		2650
1972	if ($map) {	2651	if ($map) {
1973	$map = $map->customise_for ($self);	2652	$map = $map->customise_for ($self);
1974	$map = $check->($map) if $check && $map;	2653	$map = $check->($map) if $check && $map;
1975	} else {	2654	} else {
1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2655	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
1977	}	2656	}
1978		2657
1979	$map	2658	$map
1980	};	2659	};
1981		2660
…		…
1986		2665
1987	if ($gen == $self->{_goto_generation}) {	2666	if ($gen == $self->{_goto_generation}) {
1988	delete $self->{_goto_generation};	2667	delete $self->{_goto_generation};
1989	$self->leave_link ($map, $x, $y);	2668	$self->leave_link ($map, $x, $y);
1990	}	2669	}
		2670
		2671	$done->() if $done;
1991	})->prio (1);	2672	})->prio (1);
1992	}	2673	}
1993		2674
1994	=item $player_object->enter_exit ($exit_object)	2675	=item $player_object->enter_exit ($exit_object)
1995		2676
…		…
2015	}	2696	}
2016		2697
2017	sub prepare_random_map {	2698	sub prepare_random_map {
2018	my ($exit) = @_;	2699	my ($exit) = @_;
2019		2700
2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
2021
2022	# all this does is basically replace the /! path by	2701	# all this does is basically replace the /! path by
2023	# a new random map path (?random/...) with a seed	2702	# a new random map path (?random/...) with a seed
2024	# that depends on the exit object	2703	# that depends on the exit object
2025		2704
2026	my $rmp = parse_random_map_params $exit->msg;	2705	my $rmp = parse_random_map_params $exit->msg;
…		…
2028	if ($exit->map) {	2707	if ($exit->map) {
2029	$rmp->{region} = $exit->region->name;	2708	$rmp->{region} = $exit->region->name;
2030	$rmp->{origin_map} = $exit->map->path;	2709	$rmp->{origin_map} = $exit->map->path;
2031	$rmp->{origin_x} = $exit->x;	2710	$rmp->{origin_x} = $exit->x;
2032	$rmp->{origin_y} = $exit->y;	2711	$rmp->{origin_y} = $exit->y;
		2712
		2713	$exit->map->touch;
2033	}	2714	}
2034		2715
2035	$rmp->{random_seed} ||= $exit->random_seed;	2716	$rmp->{random_seed} ||= $exit->random_seed;
2036		2717
2037	my $data = cf::to_json $rmp;	2718	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2038	my $md5 = Digest::MD5::md5_hex $data;	2719	my $md5 = Digest::MD5::md5_hex $data;
2039	my $meta = "$RANDOMDIR/$md5.meta";	2720	my $meta = "$RANDOMDIR/$md5.meta";
2040		2721
2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2722	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2042	aio_write $fh, 0, (length $data), $data, 0;	2723	aio_write $fh, 0, (length $data), $data, 0;
2043	undef $fh;	2724	undef $fh;
2044	aio_rename "$meta~", $meta;	2725	aio_rename "$meta~", $meta;
2045		2726
		2727	my $slaying = "?random/$md5";
		2728
		2729	if ($exit->valid) {
2046	$exit->slaying ("?random/$md5");	2730	$exit->slaying ("?random/$md5");
2047	$exit->msg (undef);	2731	$exit->msg (undef);
		2732	}
2048	}	2733	}
2049	}	2734	}
2050		2735
2051	sub cf::object::player::enter_exit {	2736	sub cf::object::player::enter_exit {
2052	my ($self, $exit) = @_;	2737	my ($self, $exit) = @_;
2053		2738
2054	return unless $self->type == cf::PLAYER;	2739	return unless $self->type == cf::PLAYER;
2055		2740
2056	if ($exit->slaying eq "/!") {
2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
2058	# the problem is that $exit might not survive long enough
2059	# so it needs to be done right now, right here
2060	cf::sync_job { prepare_random_map $exit };
2061	}
2062
2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2064	my $hp = $exit->stats->hp;
2065	my $sp = $exit->stats->sp;
2066
2067	$self->enter_link;	2741	$self->enter_link;
2068		2742
2069	(async {	2743	(async {
2070	$self->deactivate_recursive; # just to be sure	2744	$Coro::current->{desc} = "enter_exit";
		2745
2071	unless (eval {	2746	unless (eval {
		2747	$self->deactivate_recursive; # just to be sure
		2748
		2749	# random map handling
		2750	{
		2751	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2752
		2753	prepare_random_map $exit
		2754	if $exit->slaying eq "/!";
		2755	}
		2756
		2757	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2758	my $x = $exit->stats->hp;
		2759	my $y = $exit->stats->sp;
		2760
2072	$self->goto ($slaying, $hp, $sp);	2761	$self->goto ($map, $x, $y);
2073		2762
		2763	# if exit is damned, update players death & WoR home-position
		2764	$self->contr->savebed ($map, $x, $y)
		2765	if $exit->flag (cf::FLAG_DAMNED);
		2766
2074	1;	2767	1
2075	}) {	2768	}) {
2076	$self->message ("Something went wrong deep within the crossfire server. "	2769	$self->message ("Something went wrong deep within the deliantra server. "
2077	. "I'll try to bring you back to the map you were before. "	2770	. "I'll try to bring you back to the map you were before. "
2078	. "Please report this to the dungeon master!",	2771	. "Please report this to the dungeon master!",
2079	cf::NDI_UNIQUE | cf::NDI_RED);	2772	cf::NDI_UNIQUE | cf::NDI_RED);
2080		2773
2081	warn "ERROR in enter_exit: $@";	2774	warn "ERROR in enter_exit: $@";
…		…
2100		2793
2101	utf8::encode $text;	2794	utf8::encode $text;
2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2795	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2103	}	2796	}
2104		2797
		2798	=item $client->send_big_packet ($pkt)
		2799
		2800	Like C<send_packet>, but tries to compress large packets, and fragments
		2801	them as required.
		2802
		2803	=cut
		2804
		2805	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2806
		2807	sub cf::client::send_big_packet {
		2808	my ($self, $pkt) = @_;
		2809
		2810	# try lzf for large packets
		2811	$pkt = "lzf " . Compress::LZF::compress $pkt
		2812	if 1024 <= length $pkt and $self->{can_lzf};
		2813
		2814	# split very large packets
		2815	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2816	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2817	$pkt = "frag";
		2818	}
		2819
		2820	$self->send_packet ($pkt);
		2821	}
		2822
		2823	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2824
		2825	Send a drawinfo or msg packet to the client, formatting the msg for the
		2826	client if neccessary. C<$type> should be a string identifying the type of
		2827	the message, with C<log> being the default. If C<$color> is negative, suppress
		2828	the message unless the client supports the msg packet.
		2829
		2830	=cut
		2831
		2832	# non-persistent channels (usually the info channel)
		2833	our %CHANNEL = (
		2834	"c/motd" => {
		2835	id => "infobox",
		2836	title => "MOTD",
		2837	reply => undef,
		2838	tooltip => "The message of the day",
		2839	},
		2840	"c/identify" => {
		2841	id => "infobox",
		2842	title => "Identify",
		2843	reply => undef,
		2844	tooltip => "Items recently identified",
		2845	},
		2846	"c/examine" => {
		2847	id => "infobox",
		2848	title => "Examine",
		2849	reply => undef,
		2850	tooltip => "Signs and other items you examined",
		2851	},
		2852	"c/shopinfo" => {
		2853	id => "infobox",
		2854	title => "Shop Info",
		2855	reply => undef,
		2856	tooltip => "What your bargaining skill tells you about the shop",
		2857	},
		2858	"c/book" => {
		2859	id => "infobox",
		2860	title => "Book",
		2861	reply => undef,
		2862	tooltip => "The contents of a note or book",
		2863	},
		2864	"c/lookat" => {
		2865	id => "infobox",
		2866	title => "Look",
		2867	reply => undef,
		2868	tooltip => "What you saw there",
		2869	},
		2870	"c/who" => {
		2871	id => "infobox",
		2872	title => "Players",
		2873	reply => undef,
		2874	tooltip => "Shows players who are currently online",
		2875	},
		2876	"c/body" => {
		2877	id => "infobox",
		2878	title => "Body Parts",
		2879	reply => undef,
		2880	tooltip => "Shows which body parts you posess and are available",
		2881	},
		2882	"c/statistics" => {
		2883	id => "infobox",
		2884	title => "Statistics",
		2885	reply => undef,
		2886	tooltip => "Shows your primary statistics",
		2887	},
		2888	"c/skills" => {
		2889	id => "infobox",
		2890	title => "Skills",
		2891	reply => undef,
		2892	tooltip => "Shows your experience per skill and item power",
		2893	},
		2894	"c/shopitems" => {
		2895	id => "infobox",
		2896	title => "Shop Items",
		2897	reply => undef,
		2898	tooltip => "Shows the items currently for sale in this shop",
		2899	},
		2900	"c/resistances" => {
		2901	id => "infobox",
		2902	title => "Resistances",
		2903	reply => undef,
		2904	tooltip => "Shows your resistances",
		2905	},
		2906	"c/pets" => {
		2907	id => "infobox",
		2908	title => "Pets",
		2909	reply => undef,
		2910	tooltip => "Shows information abotu your pets/a specific pet",
		2911	},
		2912	"c/perceiveself" => {
		2913	id => "infobox",
		2914	title => "Perceive Self",
		2915	reply => undef,
		2916	tooltip => "You gained detailed knowledge about yourself",
		2917	},
		2918	"c/uptime" => {
		2919	id => "infobox",
		2920	title => "Uptime",
		2921	reply => undef,
		2922	tooltip => "How long the server has been running since last restart",
		2923	},
		2924	"c/mapinfo" => {
		2925	id => "infobox",
		2926	title => "Map Info",
		2927	reply => undef,
		2928	tooltip => "Information related to the maps",
		2929	},
		2930	"c/party" => {
		2931	id => "party",
		2932	title => "Party",
		2933	reply => "gsay ",
		2934	tooltip => "Messages and chat related to your party",
		2935	},
		2936	"c/death" => {
		2937	id => "death",
		2938	title => "Death",
		2939	reply => undef,
		2940	tooltip => "Reason for and more info about your most recent death",
		2941	},
		2942	"c/say" => $SAY_CHANNEL,
		2943	"c/chat" => $CHAT_CHANNEL,
		2944	);
		2945
		2946	sub cf::client::send_msg {
		2947	my ($self, $channel, $msg, $color, @extra) = @_;
		2948
		2949	$msg = $self->pl->expand_cfpod ($msg)
		2950	unless $color & cf::NDI_VERBATIM;
		2951
		2952	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2953
		2954	# check predefined channels, for the benefit of C
		2955	if ($CHANNEL{$channel}) {
		2956	$channel = $CHANNEL{$channel};
		2957
		2958	$self->ext_msg (channel_info => $channel);
		2959	$channel = $channel->{id};
		2960
		2961	} elsif (ref $channel) {
		2962	# send meta info to client, if not yet sent
		2963	unless (exists $self->{channel}{$channel->{id}}) {
		2964	$self->{channel}{$channel->{id}} = $channel;
		2965	$self->ext_msg (channel_info => $channel);
		2966	}
		2967
		2968	$channel = $channel->{id};
		2969	}
		2970
		2971	return unless @extra || length $msg;
		2972
		2973	# default colour, mask it out
		2974	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2975	if $color & cf::NDI_DEF;
		2976
		2977	my $pkt = "msg "
		2978	. $self->{json_coder}->encode (
		2979	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2980	);
		2981
		2982	$self->send_big_packet ($pkt);
		2983	}
		2984
2105	=item $client->ext_event ($type, %msg)	2985	=item $client->ext_msg ($type, @msg)
2106		2986
2107	Sends an exti event to the client.	2987	Sends an ext event to the client.
2108		2988
2109	=cut	2989	=cut
2110		2990
2111	sub cf::client::ext_event($$%) {	2991	sub cf::client::ext_msg($$@) {
2112	my ($self, $type, %msg) = @_;	2992	my ($self, $type, @msg) = @_;
2113		2993
		2994	if ($self->extcmd == 2) {
		2995	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2996	} elsif ($self->extcmd == 1) { # TODO: remove
2114	$msg{msgtype} = "event_$type";	2997	push @msg, msgtype => "event_$type";
2115	$self->send_packet ("ext " . cf::to_json \%msg);	2998	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2999	}
		3000	}
		3001
		3002	=item $client->ext_reply ($msgid, @msg)
		3003
		3004	Sends an ext reply to the client.
		3005
		3006	=cut
		3007
		3008	sub cf::client::ext_reply($$@) {
		3009	my ($self, $id, @msg) = @_;
		3010
		3011	if ($self->extcmd == 2) {
		3012	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3013	} elsif ($self->extcmd == 1) {
		3014	#TODO: version 1, remove
		3015	unshift @msg, msgtype => "reply", msgid => $id;
		3016	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3017	}
2116	}	3018	}
2117		3019
2118	=item $success = $client->query ($flags, "text", \&cb)	3020	=item $success = $client->query ($flags, "text", \&cb)
2119		3021
2120	Queues a query to the client, calling the given callback with	3022	Queues a query to the client, calling the given callback with
2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3023	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2122	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3024	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2123		3025
2124	Queries can fail, so check the return code. Or don't, as queries will become	3026	Queries can fail, so check the return code. Or don't, as queries will
2125	reliable at some point in the future.	3027	become reliable at some point in the future.
2126		3028
2127	=cut	3029	=cut
2128		3030
2129	sub cf::client::query {	3031	sub cf::client::query {
2130	my ($self, $flags, $text, $cb) = @_;	3032	my ($self, $flags, $text, $cb) = @_;
…		…
2138	utf8::encode $text;	3040	utf8::encode $text;
2139	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3041	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2140		3042
2141	$self->send_packet ($self->{query_queue}[0][0])	3043	$self->send_packet ($self->{query_queue}[0][0])
2142	if @{ $self->{query_queue} } == 1;	3044	if @{ $self->{query_queue} } == 1;
		3045
		3046	1
2143	}	3047	}
2144		3048
2145	cf::client->attach (	3049	cf::client->attach (
		3050	on_connect => sub {
		3051	my ($ns) = @_;
		3052
		3053	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3054	},
2146	on_reply => sub {	3055	on_reply => sub {
2147	my ($ns, $msg) = @_;	3056	my ($ns, $msg) = @_;
2148		3057
2149	# this weird shuffling is so that direct followup queries	3058	# this weird shuffling is so that direct followup queries
2150	# get handled first	3059	# get handled first
…		…
2162	} else {	3071	} else {
2163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3072	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2164	}	3073	}
2165	}	3074	}
2166	},	3075	},
		3076	on_exticmd => sub {
		3077	my ($ns, $buf) = @_;
		3078
		3079	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3080
		3081	if (ref $msg) {
		3082	my ($type, $reply, @payload) =
		3083	"ARRAY" eq ref $msg
		3084	? @$msg
		3085	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3086
		3087	my @reply;
		3088
		3089	if (my $cb = $EXTICMD{$type}) {
		3090	@reply = $cb->($ns, @payload);
		3091	}
		3092
		3093	$ns->ext_reply ($reply, @reply)
		3094	if $reply;
		3095
		3096	} else {
		3097	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3098	}
		3099
		3100	cf::override;
		3101	},
2167	);	3102	);
2168		3103
2169	=item $client->async (\&cb)	3104	=item $client->async (\&cb)
2170		3105
2171	Create a new coroutine, running the specified callback. The coroutine will	3106	Create a new coroutine, running the specified callback. The coroutine will
…		…
2212	our $safe = new Safe "safe";	3147	our $safe = new Safe "safe";
2213	our $safe_hole = new Safe::Hole;	3148	our $safe_hole = new Safe::Hole;
2214		3149
2215	$SIG{FPE} = 'IGNORE';	3150	$SIG{FPE} = 'IGNORE';
2216		3151
2217	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3152	$safe->permit_only (Opcode::opset qw(
		3153	:base_core :base_mem :base_orig :base_math :base_loop
		3154	grepstart grepwhile mapstart mapwhile
		3155	sort time
		3156	));
2218		3157
2219	# here we export the classes and methods available to script code	3158	# here we export the classes and methods available to script code
2220		3159
2221	=pod	3160	=pod
2222		3161
2223	The following functions and methods are available within a safe environment:	3162	The following functions and methods are available within a safe environment:
2224		3163
2225	cf::object contr pay_amount pay_player map	3164	cf::object
		3165	contr pay_amount pay_player map x y force_find force_add destroy
		3166	insert remove name archname title slaying race decrease split
		3167	value
		3168
2226	cf::object::player player	3169	cf::object::player
2227	cf::player peaceful	3170	player
2228	cf::map trigger	3171
		3172	cf::player
		3173	peaceful
		3174
		3175	cf::map
		3176	trigger
2229		3177
2230	=cut	3178	=cut
2231		3179
2232	for (	3180	for (
2233	["cf::object" => qw(contr pay_amount pay_player map)],	3181	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3182	insert remove inv nrof name archname title slaying race
		3183	decrease split destroy change_exp value msg lore send_msg)],
2234	["cf::object::player" => qw(player)],	3184	["cf::object::player" => qw(player)],
2235	["cf::player" => qw(peaceful)],	3185	["cf::player" => qw(peaceful send_msg)],
2236	["cf::map" => qw(trigger)],	3186	["cf::map" => qw(trigger)],
2237	) {	3187	) {
2238	no strict 'refs';	3188	no strict 'refs';
2239	my ($pkg, @funs) = @$_;	3189	my ($pkg, @funs) = @$_;
2240	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3190	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2258		3208
2259	my $qcode = $code;	3209	my $qcode = $code;
2260	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3210	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2261	$qcode =~ s/\n/\\n/g;	3211	$qcode =~ s/\n/\\n/g;
2262		3212
		3213	%vars = (_dummy => 0) unless %vars;
		3214
		3215	my @res;
2263	local $_;	3216	local $_;
2264	local @safe::cf::_safe_eval_args = values %vars;
2265		3217
2266	my $eval =	3218	my $eval =
2267	"do {\n"	3219	"do {\n"
2268	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3220	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2269	. "#line 0 \"{$qcode}\"\n"	3221	. "#line 0 \"{$qcode}\"\n"
2270	. $code	3222	. $code
2271	. "\n}"	3223	. "\n}"
2272	;	3224	;
2273		3225
		3226	if ($CFG{safe_eval}) {
2274	sub_generation_inc;	3227	sub_generation_inc;
		3228	local @safe::cf::_safe_eval_args = values %vars;
2275	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3229	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2276	sub_generation_inc;	3230	sub_generation_inc;
		3231	} else {
		3232	local @cf::_safe_eval_args = values %vars;
		3233	@res = wantarray ? eval eval : scalar eval $eval;
		3234	}
2277		3235
2278	if ($@) {	3236	if ($@) {
2279	warn "$@";	3237	warn "$@";
2280	warn "while executing safe code '$code'\n";	3238	warn "while executing safe code '$code'\n";
2281	warn "with arguments " . (join " ", %vars) . "\n";	3239	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2300	=cut	3258	=cut
2301		3259
2302	sub register_script_function {	3260	sub register_script_function {
2303	my ($fun, $cb) = @_;	3261	my ($fun, $cb) = @_;
2304		3262
2305	no strict 'refs';	3263	$fun = "safe::$fun" if $CFG{safe_eval};
2306	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3264	*$fun = $safe_hole->wrap ($cb);
2307	}	3265	}
2308		3266
2309	=back	3267	=back
2310		3268
2311	=cut	3269	=cut
2312
2313	#############################################################################
2314
2315	=head2 EXTENSION DATABASE SUPPORT
2316
2317	Crossfire maintains a very simple database for extension use. It can
2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2319	convert to/from binary).
2320
2321	The parameter C<$family> should best start with the name of the extension
2322	using it, it should be unique.
2323
2324	=over 4
2325
2326	=item $value = cf::db_get $family => $key
2327
2328	Returns a single value from the database.
2329
2330	=item cf::db_put $family => $key => $value
2331
2332	Stores the given C<$value> in the family.
2333
2334	=cut
2335
2336	our $DB;
2337
2338	sub db_init {
2339	unless ($DB) {
2340	$DB = BDB::db_create $DB_ENV;
2341
2342	cf::sync_job {
2343	eval {
2344	$DB->set_flags (BDB::CHKSUM);
2345
2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2348	cf::cleanup "db_open(db): $!" if $!;
2349	};
2350	cf::cleanup "db_open(db): $@" if $@;
2351	};
2352	}
2353	}
2354
2355	sub db_get($$) {
2356	my $key = "$_[0]/$_[1]";
2357
2358	cf::sync_job {
2359	BDB::db_get $DB, undef, $key, my $data;
2360
2361	$! ? ()
2362	: $data
2363	}
2364	}
2365
2366	sub db_put($$$) {
2367	BDB::dbreq_pri 4;
2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2369	}
2370
2371	=item cf::cache $id => [$paths...], $processversion => $process
2372
2373	Generic caching function that returns the value of the resource $id,
2374	caching and regenerating as required.
2375
2376	This function can block.
2377
2378	=cut
2379
2380	sub cache {
2381	my ($id, $src, $processversion, $process) = @_;
2382
2383	my $meta =
2384	join "\x00",
2385	$processversion,
2386	map {
2387	aio_stat $_
2388	and Carp::croak "$_: $!";
2389
2390	($_, (stat _)[7,9])
2391	} @$src;
2392
2393	my $dbmeta = db_get cache => "$id/meta";
2394	if ($dbmeta ne $meta) {
2395	# changed, we may need to process
2396
2397	my @data;
2398	my $md5;
2399
2400	for (0 .. $#$src) {
2401	0 <= aio_load $src->[$_], $data[$_]
2402	or Carp::croak "$src->[$_]: $!";
2403	}
2404
2405	# if processing is expensive, check
2406	# checksum first
2407	if (1) {
2408	$md5 =
2409	join "\x00",
2410	$processversion,
2411	map {
2412	Coro::cede;
2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
2414	} 0.. $#$src;
2415
2416
2417	my $dbmd5 = db_get cache => "$id/md5";
2418	if ($dbmd5 eq $md5) {
2419	db_put cache => "$id/meta", $meta;
2420
2421	return db_get cache => "$id/data";
2422	}
2423	}
2424
2425	my $t1 = Time::HiRes::time;
2426	my $data = $process->(\@data);
2427	my $t2 = Time::HiRes::time;
2428
2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2430
2431	db_put cache => "$id/data", $data;
2432	db_put cache => "$id/md5" , $md5;
2433	db_put cache => "$id/meta", $meta;
2434
2435	return $data;
2436	}
2437
2438	db_get cache => "$id/data"
2439	}
2440
2441	=item fork_call { }, $args
2442
2443	Executes the given code block with the given arguments in a seperate
2444	process, returning the results. Everything must be serialisable with
2445	Coro::Storable. May, of course, block. Note that the executed sub may
2446	never block itself or use any form of Event handling.
2447
2448	=cut
2449
2450	sub fork_call(&@) {
2451	my ($cb, @args) = @_;
2452
2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2454	# or die "socketpair: $!";
2455	pipe my $fh1, my $fh2
2456	or die "pipe: $!";
2457
2458	if (my $pid = fork) {
2459	close $fh2;
2460
2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2462	$res = Coro::Storable::thaw $res;
2463
2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2465
2466	die $$res unless "ARRAY" eq ref $res;
2467
2468	return wantarray ? @$res : $res->[-1];
2469	} else {
2470	reset_signals;
2471	local $SIG{__WARN__};
2472	local $SIG{__DIE__};
2473	eval {
2474	close $fh1;
2475
2476	my @res = eval { $cb->(@args) };
2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2478	};
2479
2480	warn $@ if $@;
2481	_exit 0;
2482	}
2483	}
2484		3270
2485	#############################################################################	3271	#############################################################################
2486	# the server's init and main functions	3272	# the server's init and main functions
2487		3273
2488	sub load_facedata($) {	3274	sub load_facedata($) {
2489	my ($path) = @_;	3275	my ($path) = @_;
		3276
		3277	# HACK to clear player env face cache, we need some signal framework
		3278	# for this (global event?)
		3279	%ext::player_env::MUSIC_FACE_CACHE = ();
		3280
		3281	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2490		3282
2491	warn "loading facedata from $path\n";	3283	warn "loading facedata from $path\n";
2492		3284
2493	my $facedata;	3285	my $facedata;
2494	0 < aio_load $path, $facedata	3286	0 < aio_load $path, $facedata
…		…
2497	$facedata = Coro::Storable::thaw $facedata;	3289	$facedata = Coro::Storable::thaw $facedata;
2498		3290
2499	$facedata->{version} == 2	3291	$facedata->{version} == 2
2500	or cf::cleanup "$path: version mismatch, cannot proceed.";	3292	or cf::cleanup "$path: version mismatch, cannot proceed.";
2501		3293
		3294	# patch in the exptable
		3295	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3296	$facedata->{resource}{"res/exp_table"} = {
		3297	type => FT_RSRC,
		3298	data => $exp_table,
		3299	hash => (Digest::MD5::md5 $exp_table),
		3300	};
		3301	cf::cede_to_tick;
		3302
2502	{	3303	{
2503	my $faces = $facedata->{faceinfo};	3304	my $faces = $facedata->{faceinfo};
2504		3305
2505	while (my ($face, $info) = each %$faces) {	3306	while (my ($face, $info) = each %$faces) {
2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3307	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3308
2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3309	cf::face::set_visibility $idx, $info->{visibility};
		3310	cf::face::set_magicmap $idx, $info->{magicmap};
2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3311	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3312	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2510	Coro::cede;	3313
		3314	cf::cede_to_tick;
2511	}	3315	}
2512		3316
2513	while (my ($face, $info) = each %$faces) {	3317	while (my ($face, $info) = each %$faces) {
2514	next unless $info->{smooth};	3318	next unless $info->{smooth};
		3319
2515	my $idx = cf::face::find $face	3320	my $idx = cf::face::find $face
2516	or next;	3321	or next;
		3322
2517	if (my $smooth = cf::face::find $info->{smooth}) {	3323	if (my $smooth = cf::face::find $info->{smooth}) {
		3324	cf::face::set_smooth $idx, $smooth;
2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3325	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2519	} else {	3326	} else {
2520	warn "smooth face '$info->{smooth}' not found for face '$face'";	3327	warn "smooth face '$info->{smooth}' not found for face '$face'";
2521	}	3328	}
2522	Coro::cede;	3329
		3330	cf::cede_to_tick;
2523	}	3331	}
2524	}	3332	}
2525		3333
2526	{	3334	{
2527	my $anims = $facedata->{animinfo};	3335	my $anims = $facedata->{animinfo};
2528		3336
2529	while (my ($anim, $info) = each %$anims) {	3337	while (my ($anim, $info) = each %$anims) {
2530	cf::anim::set $anim, $info->{frames}, $info->{facings};	3338	cf::anim::set $anim, $info->{frames}, $info->{facings};
2531	Coro::cede;	3339	cf::cede_to_tick;
2532	}	3340	}
2533		3341
2534	cf::anim::invalidate_all; # d'oh	3342	cf::anim::invalidate_all; # d'oh
2535	}	3343	}
2536		3344
		3345	{
		3346	my $res = $facedata->{resource};
		3347
		3348	while (my ($name, $info) = each %$res) {
		3349	if (defined $info->{type}) {
		3350	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3351
		3352	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3353	cf::face::set_type $idx, $info->{type};
		3354	} else {
		3355	$RESOURCE{$name} = $info;
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3363
2537	1	3364	1
2538	}	3365	}
2539		3366
		3367	cf::global->attach (on_resource_update => sub {
		3368	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3369	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3370
		3371	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3372	my $sound = $soundconf->{compat}[$_]
		3373	or next;
		3374
		3375	my $face = cf::face::find "sound/$sound->[1]";
		3376	cf::sound::set $sound->[0] => $face;
		3377	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3378	}
		3379
		3380	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3381	my $face = cf::face::find "sound/$v";
		3382	cf::sound::set $k => $face;
		3383	}
		3384	}
		3385	});
		3386
		3387	register_exticmd fx_want => sub {
		3388	my ($ns, $want) = @_;
		3389
		3390	while (my ($k, $v) = each %$want) {
		3391	$ns->fx_want ($k, $v);
		3392	}
		3393	};
		3394
		3395	sub load_resource_file($) {
		3396	my $guard = lock_acquire "load_resource_file";
		3397
		3398	my $status = load_resource_file_ $_[0];
		3399	get_slot 0.1, 100;
		3400	cf::arch::commit_load;
		3401
		3402	$status
		3403	}
		3404
2540	sub reload_regions {	3405	sub reload_regions {
		3406	# HACK to clear player env face cache, we need some signal framework
		3407	# for this (global event?)
		3408	%ext::player_env::MUSIC_FACE_CACHE = ();
		3409
2541	load_resource_file "$MAPDIR/regions"	3410	load_resource_file "$MAPDIR/regions"
2542	or die "unable to load regions file\n";	3411	or die "unable to load regions file\n";
		3412
		3413	for (cf::region::list) {
		3414	$_->{match} = qr/$_->{match}/
		3415	if exists $_->{match};
		3416	}
2543	}	3417	}
2544		3418
2545	sub reload_facedata {	3419	sub reload_facedata {
2546	load_facedata "$DATADIR/facedata"	3420	load_facedata "$DATADIR/facedata"
2547	or die "unable to load facedata\n";	3421	or die "unable to load facedata\n";
…		…
2558	}	3432	}
2559		3433
2560	sub reload_resources {	3434	sub reload_resources {
2561	warn "reloading resource files...\n";	3435	warn "reloading resource files...\n";
2562		3436
2563	reload_regions;
2564	reload_facedata;	3437	reload_facedata;
2565	reload_archetypes;	3438	reload_archetypes;
		3439	reload_regions;
2566	reload_treasures;	3440	reload_treasures;
2567		3441
2568	warn "finished reloading resource files\n";	3442	warn "finished reloading resource files\n";
2569	}	3443	}
2570		3444
2571	sub init {	3445	sub reload_config {
2572	reload_resources;	3446	warn "reloading config file...\n";
2573	}
2574		3447
2575	sub cfg_load {
2576	open my $fh, "<:utf8", "$CONFDIR/config"	3448	open my $fh, "<:utf8", "$CONFDIR/config"
2577	or return;	3449	or return;
2578		3450
2579	local $/;	3451	local $/;
2580	*CFG = YAML::Syck::Load <$fh>;	3452	*CFG = YAML::XS::Load scalar <$fh>;
2581		3453
2582	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3454	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2583		3455
2584	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3456	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2585	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3457	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3461	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2590	and die "WARNING: m(un)lockall failed: $!\n";	3462	and die "WARNING: m(un)lockall failed: $!\n";
2591	};	3463	};
2592	warn $@ if $@;	3464	warn $@ if $@;
2593	}	3465	}
		3466
		3467	warn "finished reloading resource files\n";
		3468	}
		3469
		3470	sub pidfile() {
		3471	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3472	or die "$PIDFILE: $!";
		3473	flock $fh, &Fcntl::LOCK_EX
		3474	or die "$PIDFILE: flock: $!";
		3475	$fh
		3476	}
		3477
		3478	# make sure only one server instance is running at any one time
		3479	sub atomic {
		3480	my $fh = pidfile;
		3481
		3482	my $pid = <$fh>;
		3483	kill 9, $pid if $pid > 0;
		3484
		3485	seek $fh, 0, 0;
		3486	print $fh $$;
		3487	}
		3488
		3489	sub main_loop {
		3490	warn "EV::loop starting\n";
		3491	if (1) {
		3492	EV::loop;
		3493	}
		3494	warn "EV::loop returned\n";
		3495	goto &main_loop unless $REALLY_UNLOOP;
2594	}	3496	}
2595		3497
2596	sub main {	3498	sub main {
		3499	cf::init_globals; # initialise logging
		3500
		3501	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3502	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3503	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3504	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3505
		3506	cf::init_experience;
		3507	cf::init_anim;
		3508	cf::init_attackmess;
		3509	cf::init_dynamic;
		3510
		3511	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3512
2597	# we must not ever block the main coroutine	3513	# we must not ever block the main coroutine
2598	local $Coro::idle = sub {	3514	local $Coro::idle = sub {
2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3515	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2600	(async {	3516	(async {
2601	Event::one_event;	3517	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3518	EV::loop EV::LOOP_ONESHOT;
2602	})->prio (Coro::PRIO_MAX);	3519	})->prio (Coro::PRIO_MAX);
2603	};	3520	};
2604		3521
2605	cfg_load;	3522	evthread_start IO::AIO::poll_fileno;
		3523
		3524	cf::sync_job {
		3525	cf::load_settings;
		3526	cf::load_materials;
		3527
		3528	reload_resources;
		3529	reload_config;
2606	db_init;	3530	db_init;
		3531
		3532	cf::init_uuid;
		3533	cf::init_signals;
		3534	cf::init_commands;
		3535	cf::init_skills;
		3536
		3537	cf::init_beforeplay;
		3538
		3539	atomic;
		3540
2607	load_extensions;	3541	load_extensions;
2608		3542
2609	$TICK_WATCHER->start;	3543	utime time, time, $RUNTIMEFILE;
2610	Event::loop;	3544
		3545	# no (long-running) fork's whatsoever before this point(!)
		3546	use POSIX ();
		3547	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3548
		3549	(pop @POST_INIT)->(0) while @POST_INIT;
		3550	};
		3551
		3552	main_loop;
2611	}	3553	}
2612		3554
2613	#############################################################################	3555	#############################################################################
2614	# initialisation and cleanup	3556	# initialisation and cleanup
2615		3557
2616	# install some emergency cleanup handlers	3558	# install some emergency cleanup handlers
2617	BEGIN {	3559	BEGIN {
		3560	our %SIGWATCHER = ();
2618	for my $signal (qw(INT HUP TERM)) {	3561	for my $signal (qw(INT HUP TERM)) {
2619	Event->signal (	3562	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2620	reentrant => 0,
2621	data => WF_AUTOCANCEL,
2622	signal => $signal,
2623	prio => 0,
2624	cb => sub {
2625	cf::cleanup "SIG$signal";	3563	cf::cleanup "SIG$signal";
2626	},
2627	);	3564	};
		3565	}
		3566	}
		3567
		3568	sub write_runtime_sync {
		3569	# first touch the runtime file to show we are still running:
		3570	# the fsync below can take a very very long time.
		3571
		3572	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3573
		3574	my $guard = cf::lock_acquire "write_runtime";
		3575
		3576	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3577	or return;
		3578
		3579	my $value = $cf::RUNTIME + 90 + 10;
		3580	# 10 is the runtime save interval, for a monotonic clock
		3581	# 60 allows for the watchdog to kill the server.
		3582
		3583	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3584	and return;
		3585
		3586	# always fsync - this file is important
		3587	aio_fsync $fh
		3588	and return;
		3589
		3590	# touch it again to show we are up-to-date
		3591	aio_utime $fh, undef, undef;
		3592
		3593	close $fh
		3594	or return;
		3595
		3596	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3597	and return;
		3598
		3599	warn "runtime file written.\n";
		3600
2628	}	3601	1
		3602	}
		3603
		3604	our $uuid_lock;
		3605	our $uuid_skip;
		3606
		3607	sub write_uuid_sync($) {
		3608	$uuid_skip ||= $_[0];
		3609
		3610	return if $uuid_lock;
		3611	local $uuid_lock = 1;
		3612
		3613	my $uuid = "$LOCALDIR/uuid";
		3614
		3615	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3616	or return;
		3617
		3618	my $value = uuid_seq uuid_cur;
		3619
		3620	unless ($value) {
		3621	warn "cowardly refusing to write zero uuid value!\n";
		3622	return;
		3623	}
		3624
		3625	my $value = uuid_str $value + $uuid_skip;
		3626	$uuid_skip = 0;
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	close $fh
		3636	or return;
		3637
		3638	aio_rename "$uuid~", $uuid
		3639	and return;
		3640
		3641	warn "uuid file written ($value).\n";
		3642
		3643	1
		3644
		3645	}
		3646
		3647	sub write_uuid($$) {
		3648	my ($skip, $sync) = @_;
		3649
		3650	$sync ? write_uuid_sync $skip
		3651	: async { write_uuid_sync $skip };
2629	}	3652	}
2630		3653
2631	sub emergency_save() {	3654	sub emergency_save() {
2632	my $freeze_guard = cf::freeze_mainloop;	3655	my $freeze_guard = cf::freeze_mainloop;
2633		3656
2634	warn "enter emergency perl save\n";	3657	warn "emergency_perl_save: enter\n";
2635		3658
2636	cf::sync_job {	3659	cf::sync_job {
		3660	# this is a trade-off: we want to be very quick here, so
		3661	# save all maps without fsync, and later call a global sync
		3662	# (which in turn might be very very slow)
		3663	local $USE_FSYNC = 0;
		3664
2637	# use a peculiar iteration method to avoid tripping on perl	3665	# use a peculiar iteration method to avoid tripping on perl
2638	# refcount bugs in for. also avoids problems with players	3666	# refcount bugs in for. also avoids problems with players
2639	# and maps saved/destroyed asynchronously.	3667	# and maps saved/destroyed asynchronously.
2640	warn "begin emergency player save\n";	3668	warn "emergency_perl_save: begin player save\n";
2641	for my $login (keys %cf::PLAYER) {	3669	for my $login (keys %cf::PLAYER) {
2642	my $pl = $cf::PLAYER{$login} or next;	3670	my $pl = $cf::PLAYER{$login} or next;
2643	$pl->valid or next;	3671	$pl->valid or next;
		3672	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2644	$pl->save;	3673	$pl->save;
2645	}	3674	}
2646	warn "end emergency player save\n";	3675	warn "emergency_perl_save: end player save\n";
2647		3676
2648	warn "begin emergency map save\n";	3677	warn "emergency_perl_save: begin map save\n";
2649	for my $path (keys %cf::MAP) {	3678	for my $path (keys %cf::MAP) {
2650	my $map = $cf::MAP{$path} or next;	3679	my $map = $cf::MAP{$path} or next;
2651	$map->valid or next;	3680	$map->valid or next;
2652	$map->save;	3681	$map->save;
2653	}	3682	}
2654	warn "end emergency map save\n";	3683	warn "emergency_perl_save: end map save\n";
2655		3684
2656	warn "begin emergency database checkpoint\n";	3685	warn "emergency_perl_save: begin database checkpoint\n";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3686	BDB::db_env_txn_checkpoint $DB_ENV;
2658	warn "end emergency database checkpoint\n";	3687	warn "emergency_perl_save: end database checkpoint\n";
		3688
		3689	warn "emergency_perl_save: begin write uuid\n";
		3690	write_uuid_sync 1;
		3691	warn "emergency_perl_save: end write uuid\n";
2659	};	3692	};
2660		3693
		3694	warn "emergency_perl_save: starting sync()\n";
		3695	IO::AIO::aio_sync sub {
		3696	warn "emergency_perl_save: finished sync()\n";
		3697	};
		3698
2661	warn "leave emergency perl save\n";	3699	warn "emergency_perl_save: leave\n";
2662	}	3700	}
2663		3701
2664	sub post_cleanup {	3702	sub post_cleanup {
2665	my ($make_core) = @_;	3703	my ($make_core) = @_;
2666		3704
2667	warn Carp::longmess "post_cleanup backtrace"	3705	warn Carp::longmess "post_cleanup backtrace"
2668	if $make_core;	3706	if $make_core;
		3707
		3708	my $fh = pidfile;
		3709	unlink $PIDFILE if <$fh> == $$;
		3710	}
		3711
		3712	# a safer delete_package, copied from Symbol
		3713	sub clear_package($) {
		3714	my $pkg = shift;
		3715
		3716	# expand to full symbol table name if needed
		3717	unless ($pkg =~ /^main::.*::$/) {
		3718	$pkg = "main$pkg" if $pkg =~ /^::/;
		3719	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3720	$pkg .= '::' unless $pkg =~ /::$/;
		3721	}
		3722
		3723	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3724	my $stem_symtab = *{$stem}{HASH};
		3725
		3726	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3727	or return;
		3728
		3729	# clear all symbols
		3730	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3731	for my $name (keys %$leaf_symtab) {
		3732	_gv_clear *{"$pkg$name"};
		3733	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3734	}
		3735	warn "cleared package $pkg\n";#d#
2669	}	3736	}
2670		3737
2671	sub do_reload_perl() {	3738	sub do_reload_perl() {
2672	# can/must only be called in main	3739	# can/must only be called in main
2673	if ($Coro::current != $Coro::main) {	3740	if ($Coro::current != $Coro::main) {
2674	warn "can only reload from main coroutine";	3741	warn "can only reload from main coroutine";
2675	return;	3742	return;
2676	}	3743	}
2677		3744
		3745	return if $RELOAD++;
		3746
		3747	my $t1 = EV::time;
		3748
		3749	while ($RELOAD) {
2678	warn "reloading...";	3750	warn "reloading...";
2679		3751
2680	warn "entering sync_job";	3752	warn "entering sync_job";
2681		3753
2682	cf::sync_job {	3754	cf::sync_job {
2683	cf::write_runtime; # external watchdog should not bark	3755	cf::write_runtime_sync; # external watchdog should not bark
2684	cf::emergency_save;	3756	cf::emergency_save;
2685	cf::write_runtime; # external watchdog should not bark	3757	cf::write_runtime_sync; # external watchdog should not bark
2686		3758
2687	warn "syncing database to disk";	3759	warn "syncing database to disk";
2688	BDB::db_env_txn_checkpoint $DB_ENV;	3760	BDB::db_env_txn_checkpoint $DB_ENV;
2689		3761
2690	# if anything goes wrong in here, we should simply crash as we already saved	3762	# if anything goes wrong in here, we should simply crash as we already saved
2691		3763
2692	warn "cancelling all WF_AUTOCANCEL watchers";
2693	for (Event::all_watchers) {
2694	$_->cancel if $_->data & WF_AUTOCANCEL;
2695	}
2696
2697	warn "flushing outstanding aio requests";	3764	warn "flushing outstanding aio requests";
2698	for (;;) {
2699	BDB::flush;
2700	IO::AIO::flush;
2701	Coro::cede;
2702	last unless IO::AIO::nreqs || BDB::nreqs;	3765	while (IO::AIO::nreqs || BDB::nreqs) {
2703	warn "iterate...";	3766	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2704	}
2705
2706	++$RELOAD;
2707
2708	warn "cancelling all extension coros";
2709	$_->cancel for values %EXT_CORO;
2710	%EXT_CORO = ();
2711
2712	warn "removing commands";
2713	%COMMAND = ();
2714
2715	warn "removing ext commands";
2716	%EXTCMD = ();
2717
2718	warn "unloading/nuking all extensions";
2719	for my $pkg (@EXTS) {
2720	warn "... unloading $pkg";
2721
2722	if (my $cb = $pkg->can ("unload")) {
2723	eval {
2724	$cb->($pkg);
2725	1
2726	} or warn "$pkg unloaded, but with errors: $@";
2727	}	3767	}
2728		3768
2729	warn "... nuking $pkg";	3769	warn "cancelling all extension coros";
2730	Symbol::delete_package $pkg;	3770	$_->cancel for values %EXT_CORO;
2731	}	3771	%EXT_CORO = ();
2732		3772
2733	warn "unloading all perl modules loaded from $LIBDIR";	3773	warn "removing commands";
2734	while (my ($k, $v) = each %INC) {	3774	%COMMAND = ();
2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2736		3775
		3776	warn "removing ext/exti commands";
		3777	%EXTCMD = ();
		3778	%EXTICMD = ();
		3779
		3780	warn "unloading/nuking all extensions";
		3781	for my $pkg (@EXTS) {
2737	warn "... unloading $k";	3782	warn "... unloading $pkg";
2738	delete $INC{$k};
2739		3783
2740	$k =~ s/\.pm$//;
2741	$k =~ s/\//::/g;
2742
2743	if (my $cb = $k->can ("unload_module")) {	3784	if (my $cb = $pkg->can ("unload")) {
		3785	eval {
2744	$cb->();	3786	$cb->($pkg);
		3787	1
		3788	} or warn "$pkg unloaded, but with errors: $@";
		3789	}
		3790
		3791	warn "... clearing $pkg";
		3792	clear_package $pkg;
2745	}	3793	}
2746		3794
2747	Symbol::delete_package $k;	3795	warn "unloading all perl modules loaded from $LIBDIR";
		3796	while (my ($k, $v) = each %INC) {
		3797	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3798
		3799	warn "... unloading $k";
		3800	delete $INC{$k};
		3801
		3802	$k =~ s/\.pm$//;
		3803	$k =~ s/\//::/g;
		3804
		3805	if (my $cb = $k->can ("unload_module")) {
		3806	$cb->();
		3807	}
		3808
		3809	clear_package $k;
2748	}	3810	}
2749		3811
2750	warn "getting rid of safe::, as good as possible";	3812	warn "getting rid of safe::, as good as possible";
2751	Symbol::delete_package "safe::$_"	3813	clear_package "safe::$_"
2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3814	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2753		3815
2754	warn "unloading cf.pm \"a bit\"";	3816	warn "unloading cf.pm \"a bit\"";
2755	delete $INC{"cf.pm"};	3817	delete $INC{"cf.pm"};
2756	delete $INC{"cf/pod.pm"};	3818	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2757		3819
2758	# don't, removes xs symbols, too,	3820	# don't, removes xs symbols, too,
2759	# and global variables created in xs	3821	# and global variables created in xs
2760	#Symbol::delete_package __PACKAGE__;	3822	#clear_package __PACKAGE__;
2761		3823
2762	warn "unload completed, starting to reload now";	3824	warn "unload completed, starting to reload now";
2763		3825
2764	warn "reloading cf.pm";	3826	warn "reloading cf.pm";
2765	require cf;	3827	require cf;
2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3828	cf::_connect_to_perl_1;
2767		3829
2768	warn "loading config and database again";	3830	warn "loading config and database again";
2769	cf::cfg_load;	3831	cf::reload_config;
2770		3832
2771	warn "loading extensions";	3833	warn "loading extensions";
2772	cf::load_extensions;	3834	cf::load_extensions;
2773		3835
		3836	if ($REATTACH_ON_RELOAD) {
2774	warn "reattaching attachments to objects/players";	3837	warn "reattaching attachments to objects/players";
2775	_global_reattach; # objects, sockets	3838	_global_reattach; # objects, sockets
2776	warn "reattaching attachments to maps";	3839	warn "reattaching attachments to maps";
2777	reattach $_ for values %MAP;	3840	reattach $_ for values %MAP;
2778	warn "reattaching attachments to players";	3841	warn "reattaching attachments to players";
2779	reattach $_ for values %PLAYER;	3842	reattach $_ for values %PLAYER;
		3843	}
2780		3844
		3845	warn "running post_init jobs";
		3846	(pop @POST_INIT)->(1) while @POST_INIT;
		3847
2781	warn "leaving sync_job";	3848	warn "leaving sync_job";
2782		3849
2783	1	3850	1
2784	} or do {	3851	} or do {
2785	warn $@;	3852	warn $@;
2786	warn "error while reloading, exiting.";	3853	cf::cleanup "error while reloading, exiting.";
2787	exit 1;
2788	};	3854	};
2789		3855
2790	warn "reloaded";	3856	warn "reloaded";
		3857	--$RELOAD;
		3858	}
		3859
		3860	$t1 = EV::time - $t1;
		3861	warn "reload completed in ${t1}s\n";
2791	};	3862	};
2792		3863
2793	our $RELOAD_WATCHER; # used only during reload	3864	our $RELOAD_WATCHER; # used only during reload
2794		3865
2795	sub reload_perl() {	3866	sub reload_perl() {
2796	# doing reload synchronously and two reloads happen back-to-back,	3867	# doing reload synchronously and two reloads happen back-to-back,
2797	# coro crashes during coro_state_free->destroy here.	3868	# coro crashes during coro_state_free->destroy here.
2798		3869
2799	$RELOAD_WATCHER ||= Event->timer (	3870	$RELOAD_WATCHER ||= cf::async {
2800	reentrant => 0,	3871	Coro::AIO::aio_wait cache_extensions;
2801	after => 0,	3872
2802	data => WF_AUTOCANCEL,	3873	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2803	cb => sub {
2804	do_reload_perl;	3874	do_reload_perl;
2805	undef $RELOAD_WATCHER;	3875	undef $RELOAD_WATCHER;
2806	},	3876	};
2807	);	3877	};
2808	}	3878	}
2809		3879
2810	register_command "reload" => sub {	3880	register_command "reload" => sub {
2811	my ($who, $arg) = @_;	3881	my ($who, $arg) = @_;
2812		3882
2813	if ($who->flag (FLAG_WIZ)) {	3883	if ($who->flag (FLAG_WIZ)) {
2814	$who->message ("reloading server.");	3884	$who->message ("reloading server.");
		3885	async {
		3886	$Coro::current->{desc} = "perl_reload";
2815	async { reload_perl };	3887	reload_perl;
		3888	};
2816	}	3889	}
2817	};	3890	};
2818		3891
2819	unshift @INC, $LIBDIR;	3892	unshift @INC, $LIBDIR;
2820		3893
…		…
2822		3895
2823	our @WAIT_FOR_TICK;	3896	our @WAIT_FOR_TICK;
2824	our @WAIT_FOR_TICK_BEGIN;	3897	our @WAIT_FOR_TICK_BEGIN;
2825		3898
2826	sub wait_for_tick {	3899	sub wait_for_tick {
2827	return unless $TICK_WATCHER->is_active;
2828	return if $Coro::current == $Coro::main;	3900	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2829		3901
2830	my $signal = new Coro::Signal;	3902	my $signal = new Coro::Signal;
2831	push @WAIT_FOR_TICK, $signal;	3903	push @WAIT_FOR_TICK, $signal;
2832	$signal->wait;	3904	$signal->wait;
2833	}	3905	}
2834		3906
2835	sub wait_for_tick_begin {	3907	sub wait_for_tick_begin {
2836	return unless $TICK_WATCHER->is_active;
2837	return if $Coro::current == $Coro::main;	3908	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2838		3909
2839	my $signal = new Coro::Signal;	3910	my $signal = new Coro::Signal;
2840	push @WAIT_FOR_TICK_BEGIN, $signal;	3911	push @WAIT_FOR_TICK_BEGIN, $signal;
2841	$signal->wait;	3912	$signal->wait;
2842	}	3913	}
2843		3914
2844	my $min = 1e6;#d#	3915	sub tick {
2845	my $avg = 10;
2846	$TICK_WATCHER = Event->timer (
2847	reentrant => 0,
2848	parked => 1,
2849	prio => 0,
2850	at => $NEXT_TICK || $TICK,
2851	data => WF_AUTOCANCEL,
2852	cb => sub {
2853	if ($Coro::current != $Coro::main) {	3916	if ($Coro::current != $Coro::main) {
2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3917	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2855	unless ++$bug_warning > 10;	3918	unless ++$bug_warning > 10;
2856	return;	3919	return;
2857	}	3920	}
2858		3921
2859	$NOW = $tick_start = Event::time;
2860
2861	cf::server_tick; # one server iteration	3922	cf::server_tick; # one server iteration
2862		3923
2863	0 && sync_job {#d#	3924	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2864	for(1..10) {
2865	my $t = Event::time;
2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2867	or die;
2868		3925
2869	$map->width (50);	3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2870	$map->height (50);	3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2871	$map->alloc;	3928	Coro::async_pool {
2872	$map->_load_objects ("/tmp/x.map", 1);	3929	$Coro::current->{desc} = "runtime saver";
2873	my $t = Event::time - $t;	3930	write_runtime_sync
2874		3931	or warn "ERROR: unable to write runtime file: $!";
2875	#next unless $t < 0.0013;#d#
2876	if ($t < $min) {
2877	$min = $t;
2878	}
2879	$avg = $avg * 0.99 + $t * 0.01;
2880	}
2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2882	exit 0;
2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2884	};	3932	};
		3933	}
2885		3934
2886	$RUNTIME += $TICK;
2887	$NEXT_TICK += $TICK;
2888
2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
2891	Coro::async_pool {
2892	write_runtime
2893	or warn "ERROR: unable to write runtime file: $!";
2894	};
2895	}
2896
2897	# my $AFTER = Event::time;
2898	# warn $AFTER - $NOW;#d#
2899
2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2901	$sig->send;	3936	$sig->send;
2902	}	3937	}
2903	while (my $sig = shift @WAIT_FOR_TICK) {	3938	while (my $sig = shift @WAIT_FOR_TICK) {
2904	$sig->send;	3939	$sig->send;
2905	}	3940	}
2906		3941
2907	$NOW = Event::time;	3942	$LOAD = ($NOW - $TICK_START) / $TICK;
2908
2909	# if we are delayed by four ticks or more, skip them all
2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2911
2912	$TICK_WATCHER->at ($NEXT_TICK);
2913	$TICK_WATCHER->start;
2914
2915	$LOAD = ($NOW - $tick_start) / $TICK;
2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2917		3944
2918	_post_tick;	3945	if (0) {
2919		3946	if ($NEXT_TICK) {
2920		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
2921	},	3951	}
2922	);	3952	}
2923		3953
2924	{	3954	{
2925	BDB::max_poll_time $TICK * 0.1;	3955	# configure BDB
2926	$BDB_POLL_WATCHER = Event->io (	3956
2927	reentrant => 0,
2928	fd => BDB::poll_fileno,
2929	poll => 'r',
2930	prio => 0,
2931	data => WF_AUTOCANCEL,
2932	cb => \&BDB::poll_cb,
2933	);
2934	BDB::min_parallel 8;	3957	BDB::min_parallel 16;
2935		3958	BDB::max_poll_reqs $TICK * 0.1;
2936	BDB::set_sync_prepare {	3959	$AnyEvent::BDB::WATCHER->priority (1);
2937	my $status;
2938	my $current = $Coro::current;
2939	(
2940	sub {
2941	$status = $!;
2942	$current->ready; undef $current;
2943	},
2944	sub {
2945	Coro::schedule while defined $current;
2946	$! = $status;
2947	},
2948	)
2949	};
2950		3960
2951	unless ($DB_ENV) {	3961	unless ($DB_ENV) {
2952	$DB_ENV = BDB::db_env_create;	3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2953		3968
2954	cf::sync_job {	3969	cf::sync_job {
2955	eval {	3970	eval {
2956	BDB::db_env_open	3971	BDB::db_env_open
2957	$DB_ENV,	3972	$DB_ENV,
…		…
2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2961	0666;	3976	0666;
2962		3977
2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2964
2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2966	$DB_ENV->set_lk_detect;
2967	};	3979	};
2968		3980
2969	cf::cleanup "db_env_open(db): $@" if $@;	3981	cf::cleanup "db_env_open(db): $@" if $@;
2970	};	3982	};
2971	}	3983	}
		3984
		3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3987	};
		3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
2972	}	3994	}
2973		3995
2974	{	3996	{
		3997	# configure IO::AIO
		3998
2975	IO::AIO::min_parallel 8;	3999	IO::AIO::min_parallel 8;
2976
2977	undef $Coro::AIO::WATCHER;
2978	IO::AIO::max_poll_time $TICK * 0.1;	4000	IO::AIO::max_poll_time $TICK * 0.1;
2979	$AIO_POLL_WATCHER = Event->io (	4001	undef $AnyEvent::AIO::WATCHER;
2980	reentrant => 0,
2981	data => WF_AUTOCANCEL,
2982	fd => IO::AIO::poll_fileno,
2983	poll => 'r',
2984	prio => 6,
2985	cb => \&IO::AIO::poll_cb,
2986	);
2987	}	4002	}
2988		4003
2989	my $_log_backtrace;	4004	my $_log_backtrace;
2990		4005
2991	sub _log_backtrace {	4006	sub _log_backtrace {
…		…
2994	$msg =~ s/\n//;	4009	$msg =~ s/\n//;
2995		4010
2996	# limit the # of concurrent backtraces	4011	# limit the # of concurrent backtraces
2997	if ($_log_backtrace < 2) {	4012	if ($_log_backtrace < 2) {
2998	++$_log_backtrace;	4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
2999	async {	4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
3000	my @bt = fork_call {	4018	my @bt = fork_call {
3001	@addr = map { sprintf "%x", $_ } @addr;	4019	@addr = map { sprintf "%x", $_ } @addr;
3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3004	or die "addr2line: $!";	4022	or die "addr2line: $!";
…		…
3012	}	4030	}
3013		4031
3014	@funcs	4032	@funcs
3015	};	4033	};
3016		4034
3017	LOG llevInfo, "[ABT] $msg\n";	4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3018	LOG llevInfo, "[ABT] $_\n" for @bt;	4037	LOG llevInfo, "[ABT] $_\n" for @bt;
3019	--$_log_backtrace;	4038	--$_log_backtrace;
3020	};	4039	};
3021	} else {	4040	} else {
3022	LOG llevInfo, "[ABT] $msg\n";	4041	LOG llevInfo, "[ABT] $msg\n";
3023	LOG llevInfo, "[ABT] [suppressed]\n";	4042	LOG llevInfo, "[ABT] [suppressed]\n";
3024	}	4043	}
3025	}	4044	}
3026		4045
3027	# load additional modules	4046	# load additional modules
3028	use cf::pod;	4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
3029		4049
3030	END { cf::emergency_save }	4050	END { cf::emergency_save }
3031		4051
3032	1	4052	1
3033		4053

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