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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.272 by root, Sun Jun 3 15:32:50 2007 UTC vs.
Revision 1.500 by root, Sat Jan 16 00:08:33 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use 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';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		279
194	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	281	# within the Safe compartment.
196	for my $pkg (qw(	282	for my $pkg (qw(
197	cf::global cf::attachable	283	cf::global cf::attachable
198	cf::object cf::object::player	284	cf::object cf::object::player
199	cf::client cf::player	285	cf::client cf::player
200	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
201	cf::map cf::party cf::region	288	cf::party cf::region
202	)) {	289	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	291	}
206		292
207	$Event::DIED = sub {	293	$EV::DIED = sub {
208	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
209	};	295	};
		296
		297	#############################################################################
210		298
211	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
212		300
213	=over 4	301	=over 4
214		302
…		…
233	$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;
234	$d	322	$d
235	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
236	}	324	}
237		325
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
241		327
242	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
243		329
244	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
245		331
246	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
247		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
248	=item cf::lock_wait $string	355	=item cf::lock_wait $string
249		356
250	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
251		358
252	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
253		360
254	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
255	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,
256	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
257	returned.	364	returned.
258		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
259	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
260	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
261		371
262	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
263		373
264	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.
265		375
266	=cut	376	=cut
267		377
268	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
269		379
270	sub lock_wait($) {	380	sub lock_wait($) {
271	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	382	}
279		383
280	sub lock_acquire($) {	384	sub lock_acquire($) {
281	my ($key) = @_;	385	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	386	}
293		387
294	sub lock_active($) {	388	sub lock_active($) {
295	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	390	}
299		391
300	sub freeze_mainloop {	392	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
302		394
303	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
304	$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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
305	};	456	}
306	$TICK_WATCHER->stop;	457	};
307	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
308	}	471	}
309		472
310	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
311		474
312	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		480
318	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
319		482
320	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
321		484
322	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
325		489
326	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
329	fast or be very important.	493	fast or be very important.
…		…
332		496
333	sub sync_job(&) {	497	sub sync_job(&) {
334	my ($job) = @_;	498	my ($job) = @_;
335		499
336	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
337	my $time = Event::time;	501	my $time = EV::time;
338		502
339	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
341		505
342	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	507
344	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
345		509
346	my $busy = 1;	510	my $busy = 1;
347	my @res;	511	my @res;
348		512
349	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	515	@res = eval { $job->() };
351	warn $@ if $@;	516	warn $@ if $@;
352	undef $busy;	517	undef $busy;
353	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
354		519
355	while ($busy) {	520	while ($busy) {
356	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
357	}	525	}
		526	}
358		527
359	$time = Event::time - $time;	528	my $time = EV::time - $time;
360		529
361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364	$tick_start += $time; # do not account sync jobs to server load	530	$TICK_START += $time; # do not account sync jobs to server load
365		531
366	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
367	} else {	533	} else {
368	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
369		535
…		…
389	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
390		556
391	$coro	557	$coro
392	}	558	}
393		559
394	sub write_runtime {	560	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		561
397	# first touch the runtime file to show we are still running:	562	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
399		566
400	IO::AIO::aio_utime $runtime, undef, undef;	567	=cut
401		568
402	my $guard = cf::lock_acquire "write_runtime";	569	sub fork_call(&@) {
		570	my ($cb, @args) = @_;
403		571
404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	572	# we seemingly have to make a local copy of the whole thing,
405	or return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
406		575
407	my $value = $cf::RUNTIME + 90 + 10;	576	my @res = Coro::Util::fork_eval {
408	# 10 is the runtime save interval, for a monotonic clock	577	reset_signals;
409	# 60 allows for the watchdog to kill the server.	578	&$cb
		579	}, @args;
410		580
411	(aio_write $fh, 0, (length $value), $value, 0) <= 0	581	wantarray ? @res : $res[-1]
412	and return;	582	}
413		583
414	# always fsync - this file is important	584	=item $coin = coin_from_name $name
415	aio_fsync $fh
416	and return;
417		585
418	# touch it again to show we are up-to-date	586	=cut
419	aio_utime $fh, undef, undef;
420		587
421	close $fh	588	our %coin_alias = (
422	or return;	589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
423		604
424	aio_rename "$runtime~", $runtime	605	sub coin_from_name($) {
425	and return;	606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
426		610
427	warn "runtime file written.\n";#d#	611	=item $value = cf::db_get $family => $key
428		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
429	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
430	}	736	}
431		737
432	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
433		739
434	Log a datalog packet of the given type with the given key-value pairs.	740	Log a datalog packet of the given type with the given key-value pairs.
…		…
446		752
447	#############################################################################	753	#############################################################################
448		754
449	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
450		756
451	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
452	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
453	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
454		760
455	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
456	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
457	crossfire+).	763	Deliantra).
458		764
459	=over 4	765	=over 4
460		766
461	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
462		768
…		…
506	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
507		813
508	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
509	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
510		816
511	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
512	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
513		819
514	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
515		821
516	=over 4	822	=over 4
…		…
664	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
665	}	971	}
666		972
667	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
668	} else {	974	} else {
669	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
670	}	976	}
671		977
672	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
673	}	979	}
674		980
…		…
714	";	1020	";
715	die if $@;	1021	die if $@;
716	}	1022	}
717		1023
718	our $override;	1024	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		1026
721	sub override {	1027	sub override {
722	$override = 1;	1028	$override = 1;
723	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
724	}	1030	}
725		1031
726	sub do_invoke {	1032	sub do_invoke {
727	my $event = shift;	1033	my $event = shift;
728	my $callbacks = shift;	1034	my $callbacks = shift;
729		1035
730	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
731		1037
732	local $override;	1038	local $override;
733		1039
734	for (@$callbacks) {	1040	for (@$callbacks) {
735	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
744	}	1050	}
745		1051
746	0	1052	0
747	}	1053	}
748		1054
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1056
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1058
753	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
754		1060
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1064
759	=back	1065	=back
760		1066
761	=cut	1067	=cut
762		1068
763	#############################################################################	1069	#############################################################################
764	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
765		1113
766	sub reattach {	1114	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1116	my ($obj) = @_;
769		1117
		1118	# no longer needed after getting rid of delete_package?
770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
771		1120
772	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
773		1122
774	@$registry = ();	1123	@$registry = ();
775		1124
…		…
790	cf::attachable->attach (	1139	cf::attachable->attach (
791	prio => -1000000,	1140	prio => -1000000,
792	on_instantiate => sub {	1141	on_instantiate => sub {
793	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
794		1143
795	$data = from_json $data;	1144	$data = decode_json $data;
796		1145
797	for (@$data) {	1146	for (@$data) {
798	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
799		1148
800	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
816	sub object_freezer_save {	1165	sub object_freezer_save {
817	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
818		1167
819	sync_job {	1168	sync_job {
820	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
821	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
822	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
823		1173
824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
825	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
827	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	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;
		1179	aio_fsync $fh;
		1180	}
828	close $fh;	1181	aio_close $fh;
829		1182
830	if (@$objs) {	1183	if (@$objs) {
831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
832	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
833	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
834	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
835	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	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;
		1190	aio_fsync $fh;
		1191	}
836	close $fh;	1192	aio_close $fh;
837	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
838	}	1194	}
839	} else {	1195	} else {
840	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
841	}	1197	}
842		1198
843	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
844	} else {	1203	} else {
845	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
846	}	1205	}
847	} else {	1206	} else {
848	aio_unlink $filename;	1207	aio_unlink $filename;
849	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
850	}	1209	}
851	}	1210	};
852	}	1211	}
853		1212
854	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
855	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
856		1215
…		…
868	or return;	1227	or return;
869		1228
870	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
871	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
872	or return;	1231	or return;
		1232
873	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
874	}	1235	}
875		1236
		1237	utf8::decode (my $decname = $filename);
876	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
877	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
878	return ($data, $av);	1241	($data, $av)
879	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
880		1249
881	#############################################################################	1250	#############################################################################
882	# command handling &c	1251	# command handling &c
883		1252
884	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1267	}
899		1268
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1270
902	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
903		1276
904	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
905	called.	1278	called.
906		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
907	=cut	1291	=cut
908		1292
909	sub register_extcmd {	1293	sub register_extcmd {
910	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
911		1295
912	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
913	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
914		1306
915	cf::player->attach (	1307	cf::player->attach (
916	on_command => sub {	1308	on_command => sub {
917	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
918		1310
…		…
926	cf::override;	1318	cf::override;
927	},	1319	},
928	on_extcmd => sub {	1320	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
930		1322
931	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1324
933	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
935	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
936	$pl->ext_reply ($msg->{msgid}, %reply);
937	}
938	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
939	} else {	1340	} else {
940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
941	}	1342	}
942		1343
943	cf::override;	1344	cf::override;
944	},	1345	},
945	);	1346	);
946		1347
		1348	# "readahead" all extensions
947	sub load_extension {	1349	sub cache_extensions {
948	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
949		1351
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}	1355	}
975	die $@;
976	}	1356	};
977		1357
978	push @EXTS, $pkg;	1358	$grp
979	}	1359	}
980		1360
981	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
982	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1366	next unless -r $path;
984	eval {	1367
985	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
986	1	1424	}
987	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
988	}	1430	};
989	}	1431	}
990		1432
991	#############################################################################	1433	#############################################################################
992		1434
		1435	=back
		1436
993	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
994		1438
995	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
996		1440
997	=cut	1441	=cut
998		1442
999	package cf::player;	1443	package cf::player;
1000		1444
1001	use Coro::AIO;	1445	use Coro::AIO;
1002		1446
1003	=head3 cf::player	1447	=head3 cf::player
1004		1448
1005	=over 4	1449	=over 4
		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
1006		1464
1007	=item cf::player::find $login	1465	=item cf::player::find $login
1008		1466
1009	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
1010		1468
…		…
1029		1487
1030	sub exists($) {	1488	sub exists($) {
1031	my ($login) = @_;	1489	my ($login) = @_;
1032		1490
1033	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
1034	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
1035	}	1493	}
1036		1494
1037	sub find($) {	1495	sub find($) {
1038	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1039	my $login = $_[0];	1497	my $login = $_[0];
…		…
1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1049	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
1050		1508
1051	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1052	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
1053	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1054	}	1518	}
1055	}	1519	}
1056	}	1520	}
1057		1521
…		…
1066	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1067		1531
1068	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1069	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1070		1534
		1535	cf::get_slot 0.01;
		1536
1071	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1072	Coro::cede;	1538	cf::cede_to_tick;
1073	}	1539	}
1074		1540
1075	sub new($) {	1541	sub new($) {
1076	my ($login) = @_;	1542	my ($login) = @_;
1077		1543
…		…
1083	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1084		1550
1085	$self	1551	$self
1086	}	1552	}
1087		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1088	=item $pl->quit_character	1564	=item $pl->quit_character
1089		1565
1090	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1091	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1092		1568
…		…
1096	my ($pl) = @_;	1572	my ($pl) = @_;
1097		1573
1098	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1099		1575
1100	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1101	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1102		1578
1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1104	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1106	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1107		1585
1108	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1109	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1145	or return [];	1623	or return [];
1146		1624
1147	my @logins;	1625	my @logins;
1148		1626
1149	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1151	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1152	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1153		1637
1154	utf8::decode $login;	1638	utf8::decode $login;
1155	push @logins, $login;	1639	push @logins, $login;
1156	}	1640	}
1157		1641
…		…
1184	}	1668	}
1185		1669
1186	\@paths	1670	\@paths
1187	}	1671	}
1188		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1189	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1190		1678
1191	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1192		1680
1193	=cut	1681	=cut
1194		1682
1195	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1196	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1197		1685
1198	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1199
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1687	}
1202		1688
1203	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1204		1690
1205	Sends an ext event to the client.	1691	Sends an ext event to the client.
1206		1692
1207	=cut	1693	=cut
1208		1694
1209	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1210	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1211		1697
1212	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1213	}	1699	}
1214		1700
1215	=head3 cf::region	1701	=head3 cf::region
1216		1702
1217	=over 4	1703	=over 4
…		…
1220		1706
1221	package cf::region;	1707	package cf::region;
1222		1708
1223	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1224		1710
1225	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1226		1712
1227	=cut	1713	=cut
1228		1714
1229	sub find_by_path($) {	1715	sub find_by_path($) {
1230	my ($path) = @_;	1716	my ($path) = @_;
1231		1717
1232	my ($match, $specificity);	1718	my ($match, $specificity);
1233		1719
1234	for my $region (list) {	1720	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1238	}	1724	}
1239	}	1725	}
1240		1726
…		…
1261	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1262	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1263		1749
1264	sub generate_random_map {	1750	sub generate_random_map {
1265	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1266	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1267	$self->_create_random_map (	1756	$self->_create_random_map (
1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1304	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1305		1794
1306	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1307	local $self->{path};	1796	local $self->{path};
1308	local $self->{load_path};	1797	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1798
1312	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1313	}	1800	}
1314		1801
1315	sub normalise {	1802	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1363	return $self;	1850	return $self;
1364	}	1851	}
1365	}	1852	}
1366		1853
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1855	()
1369	}	1856	}
1370		1857
1371	sub init {	1858	sub init {
1372	my ($self) = @_;	1859	my ($self) = @_;
…		…
1394		1881
1395	# the temporary/swap location	1882	# the temporary/swap location
1396	sub save_path {	1883	sub save_path {
1397	my ($self) = @_;	1884	my ($self) = @_;
1398		1885
1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1400	"$TMPDIR/$path.map"	1887	"$TMPDIR/$path.map"
1401	}	1888	}
1402		1889
1403	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1404	sub uniq_path {	1891	sub uniq_path {
1405	my ($self) = @_;	1892	my ($self) = @_;
1406		1893
1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1408	"$UNIQUEDIR/$path"	1895	"$UNIQUEDIR/$path"
1409	}	1896	}
1410		1897
1411	# and all this just because we cannot iterate over	1898	sub decay_objects {
1412	# all maps in C++...
1413	sub change_all_map_light {
1414	my ($change) = @_;	1899	my ($self) = @_;
1415		1900
1416	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1417	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1418	}	1904	}
1419		1905
1420	sub unlink_save {	1906	sub unlink_save {
1421	my ($self) = @_;	1907	my ($self) = @_;
1422		1908
…		…
1427		1913
1428	sub load_header_from($) {	1914	sub load_header_from($) {
1429	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1430		1916
1431	utf8::encode $path;	1917	utf8::encode $path;
1432	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1433	# or return;
1434
1435	$self->_load_header ($path)
1436	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1437		1926
1438	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1439		1928
1440	1	1929	1
1441	}	1930	}
…		…
1480	$self->load_header_orig	1969	$self->load_header_orig
1481	or return;	1970	or return;
1482	$self->prepare_orig;	1971	$self->prepare_orig;
1483	}	1972	}
1484		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1485	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	1978	unless $self->default_region;
1487		1979
1488	1	1980	1
1489	}	1981	}
…		…
1492	sub find {	1984	sub find {
1493	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1494		1986
1495	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1496		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1497	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1498		1991
1499	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1500	my $guard = cf::lock_acquire "map_find:$path";
1501	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1502	or return;	1994	or return;
1503		1995
1504	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1505		1997
1506	$map->load_header	1998	$map->load_header
1507	or return;	1999	or return;
1508		2000
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1512	$map->reset;	2006	$map->reset;
1513	undef $guard;
1514	return find $path;	2007	return find $path;
1515	}	2008	}
1516		2009
1517	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1518	}	2011	}
1519	}	2012	}
1520		2013
1521	sub pre_load { }	2014	sub pre_load { }
1522	sub post_load { }	2015	#sub post_load { } # XS
1523		2016
1524	sub load {	2017	sub load {
1525	my ($self) = @_;	2018	my ($self) = @_;
1526		2019
1527	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1528		2021
1529	my $path = $self->{path};	2022	my $path = $self->{path};
1530		2023
1531	{	2024	{
1532	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1533		2026
		2027	return unless $self->valid;
1534	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1535		2029
1536	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1537		2031
1538	$self->alloc;	2032	$self->alloc;
1539		2033
1540	$self->pre_load;	2034	$self->pre_load;
1541	Coro::cede;	2035	cf::cede_to_tick;
1542		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
1543	$self->_load_objects ($self->{load_path}, 1)	2039	$self->_load_objects ($f)
1544	or return;	2040	or return;
1545		2041
1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1547	if delete $self->{load_original};	2043	if delete $self->{load_original};
1548		2044
1549	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1550	utf8::encode $uniq;	2046	utf8::encode $uniq;
1551	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1552	$self->clear_unique_items;	2049	$self->clear_unique_items;
1553	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1554	}	2053	}
1555	}	2054	}
1556		2055
1557	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1558	# now do the right thing for maps	2059	# now do the right thing for maps
1559	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1560	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1561	unless $self->difficulty;	2062	unless $self->difficulty;
1562	Coro::cede;	2063	cf::cede_to_tick;
1563		2064
1564	unless ($self->{deny_activate}) {	2065	unless ($self->{deny_activate}) {
1565	$self->decay_objects;	2066	$self->decay_objects;
1566	$self->fix_auto_apply;	2067	$self->fix_auto_apply;
1567	$self->update_buttons;	2068	$self->update_buttons;
1568	Coro::cede;	2069	cf::cede_to_tick;
1569	$self->set_darkness_map;
1570	Coro::cede;
1571	$self->activate;	2070	$self->activate;
1572	}	2071	}
1573		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1574	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
1575	}	2077	}
1576		2078
1577	$self->post_load;	2079	$self->post_load;
1578	}	2080	}
1579		2081
…		…
1581	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1582		2084
1583	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	2086	if $self->per_player;
1585		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1586	$self	2091	$self
1587	}	2092	}
1588		2093
1589	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	2095	sub load_neighbours {
1591	my ($map) = @_;	2096	my ($map) = @_;
1592		2097
1593	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1594		2099
1595	for (0 .. 3) {	2100	for (0 .. 3) {
1596	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1597	or next;	2102	or next;
1598	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1599	or next;	2104	or next;
1600	$neigh->load;	2105	$neigh->load;
1601		2106
		2107	push @neigh,
1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1604	}	2110	}
1605		2111
1606	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1607	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1608	or next;	2115	or next;
1609	$neigh->load;	2116	$neigh->load;
1610	}	2117	}
1611	}	2118	}
1612		2119
…		…
1617	}	2124	}
1618		2125
1619	sub do_load_sync {	2126	sub do_load_sync {
1620	my ($map) = @_;	2127	my ($map) = @_;
1621		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1622	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1623	}	2133	}
1624		2134
1625	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1626	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1627		2137
1628	sub find_async {	2138	sub find_async {
1629	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1630		2140
1631	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1632		2142
1633	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1635	}	2145	}
1636		2146
1637	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1638	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1639	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1641	my $map = find $path	2154	if (my $map = find $k) {
1642	or next;
1643	$map->load;	2155	$map->load if $v;
		2156	}
1644		2157
1645	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1646	}	2159	}
1647	}	2160	}
1648	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1649	};	2162	};
1650	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1653	}	2166	}
1654		2167
1655	sub save {	2168	sub save {
1656	my ($self) = @_;	2169	my ($self) = @_;
1657		2170
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2172
1660	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1661		2174
1662	return unless $self->dirty;	2175	return unless $self->dirty;
1663		2176
…		…
1669	return if $self->{deny_save};	2182	return if $self->{deny_save};
1670		2183
1671	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1672		2185
1673	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1674	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1675	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1676		2192
1677	if ($uniq) {	2193	if ($uniq) {
1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1680	} else {	2196	} else {
…		…
1686	my ($self) = @_;	2202	my ($self) = @_;
1687		2203
1688	# save first because save cedes	2204	# save first because save cedes
1689	$self->save;	2205	$self->save;
1690		2206
1691	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2208
1693	return if $self->players;	2209	return if $self->players;
1694	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1695	return if $self->{deny_save};	2211	return if $self->{deny_save};
1696		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1697	$self->clear;	2217	$self->clear;
1698	$self->in_memory (cf::MAP_SWAPPED);
1699	}	2218	}
1700		2219
1701	sub reset_at {	2220	sub reset_at {
1702	my ($self) = @_;	2221	my ($self) = @_;
1703		2222
1704	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1706	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1707		2225
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		2228
…		…
1721	my ($self) = @_;	2239	my ($self) = @_;
1722		2240
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2242
1725	return if $self->players;	2243	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2244
1728	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1729		2246
1730	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1731		2248
1732	# need to save uniques path	2249	# need to save uniques path
1733	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1737	if $uniq;	2254	if $uniq;
1738	}	2255	}
1739		2256
1740	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1741		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1742	$self->clear;	2261	$self->clear;
1743
1744	$_->clear_links_to ($self) for values %cf::MAP;
1745		2262
1746	$self->unlink_save;	2263	$self->unlink_save;
1747	$self->destroy;	2264	$self->destroy;
1748	}	2265	}
1749		2266
1750	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1751		2268
1752	sub nuke {	2269	sub nuke {
1753	my ($self) = @_;	2270	my ($self) = @_;
1754		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1755	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1756		2276
1757	$self->unlink_save;	2277	$self->unlink_save;
1758		2278
1759	bless $self, "cf::map";	2279	bless $self, "cf::map";
1760	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1761	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1762	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1764		2284
1765	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1766		2287
1767	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1768	}	2325	}
1769		2326
1770	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1771		2328
1772	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2330	instantiated unique items. May block.
1774		2331
1775	=cut	2332	=cut
1776		2333
1777	sub unique_maps() {	2334	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2335	[
1779	or return;	2336	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2337	utf8::decode $_;
1785	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1786	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1787		2340	? ()
1788	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2343	]
1790
1791	\@paths
1792	}	2344	}
1793		2345
1794	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles> and F</editor>). May
		2350	block.
		2351
		2352	=cut
		2353
		2354	sub static_maps() {
		2355	my @dirs = "";
		2356	my @maps;
		2357
		2358	while (@dirs) {
		2359	my $dir = shift @dirs;
		2360
		2361	next if $dir eq "/styles" || $dir eq "/editor";
		2362
		2363	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2364	or return;
		2365
		2366	for (@$files) {
		2367	s/\.map$// or next;
		2368	utf8::decode $_;
		2369	push @maps, "$dir/$_";
		2370	}
		2371
		2372	push @dirs, map "$dir/$_", @$dirs;
		2373	}
		2374
		2375	\@maps
		2376	}
1795		2377
1796	=back	2378	=back
1797		2379
1798	=head3 cf::object	2380	=head3 cf::object
1799		2381
…		…
1803		2385
1804	=over 4	2386	=over 4
1805		2387
1806	=item $ob->inv_recursive	2388	=item $ob->inv_recursive
1807		2389
1808	Returns the inventory of the object _and_ their inventories, recursively.	2390	Returns the inventory of the object I<and> their inventories, recursively,
		2391	but I<not> the object itself.
1809		2392
1810	=cut	2393	=cut
1811		2394
1812	sub inv_recursive_;	2395	sub inv_recursive_;
1813	sub inv_recursive_ {	2396	sub inv_recursive_ {
…		…
1816		2399
1817	sub inv_recursive {	2400	sub inv_recursive {
1818	inv_recursive_ inv $_[0]	2401	inv_recursive_ inv $_[0]
1819	}	2402	}
1820		2403
		2404	=item $ref = $ob->ref
		2405
		2406	Creates and returns a persistent reference to an object that can be stored as a string.
		2407
		2408	=item $ob = cf::object::deref ($refstring)
		2409
		2410	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2411	even if the object actually exists. May block.
		2412
		2413	=cut
		2414
		2415	sub deref {
		2416	my ($ref) = @_;
		2417
		2418	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2419	my ($uuid, $name) = ($1, $2);
		2420	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2421	or return;
		2422	$pl->ob->uuid eq $uuid
		2423	or return;
		2424
		2425	$pl->ob
		2426	} else {
		2427	warn "$ref: cannot resolve object reference\n";
		2428	undef
		2429	}
		2430	}
		2431
1821	package cf;	2432	package cf;
1822		2433
1823	=back	2434	=back
1824		2435
1825	=head3 cf::object::player	2436	=head3 cf::object::player
…		…
1831	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2442	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1832	can be C<undef>. Does the right thing when the player is currently in a	2443	can be C<undef>. Does the right thing when the player is currently in a
1833	dialogue with the given NPC character.	2444	dialogue with the given NPC character.
1834		2445
1835	=cut	2446	=cut
		2447
		2448	our $SAY_CHANNEL = {
		2449	id => "say",
		2450	title => "Map",
		2451	reply => "say ",
		2452	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2453	};
		2454
		2455	our $CHAT_CHANNEL = {
		2456	id => "chat",
		2457	title => "Chat",
		2458	reply => "chat ",
		2459	tooltip => "Player chat and shouts, global to the server.",
		2460	};
1836		2461
1837	# rough implementation of a future "reply" method that works	2462	# rough implementation of a future "reply" method that works
1838	# with dialog boxes.	2463	# with dialog boxes.
1839	#TODO: the first argument must go, split into a $npc->reply_to ( method	2464	#TODO: the first argument must go, split into a $npc->reply_to ( method
1840	sub cf::object::player::reply($$$;$) {	2465	sub cf::object::player::reply($$$;$) {
…		…
1842		2467
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2469
1845	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1847	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1848	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2482	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2483	}
1850	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1851	}	2495	}
1852		2496
1853	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1854		2498
1855	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1868		2512
1869	=item $player_object->enter_link	2513	=item $player_object->enter_link
1870		2514
1871	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1872		2516
1873	The player should be reasonably safe there for short amounts of time. You	2517	The player should be reasonably safe there for short amounts of time (e.g.
1874	I<MUST> call C<leave_link> as soon as possible, though.	2518	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2519	though, as the palyer cannot control the character while it is on the link
		2520	map.
1875		2521
1876	Will never block.	2522	Will never block.
1877		2523
1878	=item $player_object->leave_link ($map, $x, $y)	2524	=item $player_object->leave_link ($map, $x, $y)
1879		2525
…		…
1931	($x, $y) = (-1, -1)	2577	($x, $y) = (-1, -1)
1932	unless (defined $x) && (defined $y);	2578	unless (defined $x) && (defined $y);
1933		2579
1934	# use -1 or undef as default coordinates, not 0, 0	2580	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2581	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2582	if $x <= 0 && $y <= 0;
1937		2583
1938	$map->load;	2584	$map->load;
1939	$map->load_diag;	2585	$map->load_neighbours;
1940		2586
1941	return unless $self->contr->active;	2587	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2588
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2589	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2590	$self->enter_map ($map, $x, $y);
1946	}
1947		2591
		2592	# only activate afterwards, to support waiting in hooks
		2593	$self->activate_recursive;
		2594	}
		2595
1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2596	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1949		2597
1950	Moves the player to the given map-path and coordinates by first freezing	2598	Moves the player to the given map-path and coordinates by first freezing
1951	her, loading and preparing them map, calling the provided $check callback	2599	her, loading and preparing them map, calling the provided $check callback
1952	that has to return the map if sucecssful, and then unfreezes the player on	2600	that has to return the map if sucecssful, and then unfreezes the player on
1953	the new (success) or old (failed) map position.	2601	the new (success) or old (failed) map position. In either case, $done will
		2602	be called at the end of this process.
		2603
		2604	Note that $check will be called with a potentially non-loaded map, so if
		2605	it needs a loaded map it has to call C<< ->load >>.
1954		2606
1955	=cut	2607	=cut
1956		2608
1957	our $GOTOGEN;	2609	our $GOTOGEN;
1958		2610
1959	sub cf::object::player::goto {	2611	sub cf::object::player::goto {
1960	my ($self, $path, $x, $y, $check) = @_;	2612	my ($self, $path, $x, $y, $check, $done) = @_;
1961		2613
1962	# do generation counting so two concurrent goto's will be executed in-order	2614	# do generation counting so two concurrent goto's will be executed in-order
1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2615	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1964		2616
1965	$self->enter_link;	2617	$self->enter_link;
1966		2618
1967	(async {	2619	(async {
		2620	$Coro::current->{desc} = "player::goto $path $x $y";
		2621
		2622	# *tag paths override both path and x|y
		2623	if ($path =~ /^\*(.*)$/) {
		2624	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2625	my $ob = $obs[rand @obs];
		2626
		2627	# see if we actually can go there
		2628	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2629	$ob = $obs[rand @obs];
		2630	} else {
		2631	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2632	}
		2633	# else put us there anyways for now #d#
		2634
		2635	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2636	} else {
		2637	($path, $x, $y) = (undef, undef, undef);
		2638	}
		2639	}
		2640
1968	my $map = eval {	2641	my $map = eval {
1969	my $map = cf::map::find $path;	2642	my $map = defined $path ? cf::map::find $path : undef;
1970		2643
1971	if ($map) {	2644	if ($map) {
1972	$map = $map->customise_for ($self);	2645	$map = $map->customise_for ($self);
1973	$map = $check->($map) if $check && $map;	2646	$map = $check->($map) if $check && $map;
1974	} else {	2647	} else {
1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2648	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
1976	}	2649	}
1977		2650
1978	$map	2651	$map
1979	};	2652	};
1980		2653
…		…
1985		2658
1986	if ($gen == $self->{_goto_generation}) {	2659	if ($gen == $self->{_goto_generation}) {
1987	delete $self->{_goto_generation};	2660	delete $self->{_goto_generation};
1988	$self->leave_link ($map, $x, $y);	2661	$self->leave_link ($map, $x, $y);
1989	}	2662	}
		2663
		2664	$done->() if $done;
1990	})->prio (1);	2665	})->prio (1);
1991	}	2666	}
1992		2667
1993	=item $player_object->enter_exit ($exit_object)	2668	=item $player_object->enter_exit ($exit_object)
1994		2669
…		…
2014	}	2689	}
2015		2690
2016	sub prepare_random_map {	2691	sub prepare_random_map {
2017	my ($exit) = @_;	2692	my ($exit) = @_;
2018		2693
2019	my $guard = cf::lock_acquire "exit_prepare:$exit";
2020
2021	# all this does is basically replace the /! path by	2694	# all this does is basically replace the /! path by
2022	# a new random map path (?random/...) with a seed	2695	# a new random map path (?random/...) with a seed
2023	# that depends on the exit object	2696	# that depends on the exit object
2024		2697
2025	my $rmp = parse_random_map_params $exit->msg;	2698	my $rmp = parse_random_map_params $exit->msg;
…		…
2027	if ($exit->map) {	2700	if ($exit->map) {
2028	$rmp->{region} = $exit->region->name;	2701	$rmp->{region} = $exit->region->name;
2029	$rmp->{origin_map} = $exit->map->path;	2702	$rmp->{origin_map} = $exit->map->path;
2030	$rmp->{origin_x} = $exit->x;	2703	$rmp->{origin_x} = $exit->x;
2031	$rmp->{origin_y} = $exit->y;	2704	$rmp->{origin_y} = $exit->y;
		2705
		2706	$exit->map->touch;
2032	}	2707	}
2033		2708
2034	$rmp->{random_seed} ||= $exit->random_seed;	2709	$rmp->{random_seed} ||= $exit->random_seed;
2035		2710
2036	my $data = cf::to_json $rmp;	2711	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2037	my $md5 = Digest::MD5::md5_hex $data;	2712	my $md5 = Digest::MD5::md5_hex $data;
2038	my $meta = "$RANDOMDIR/$md5.meta";	2713	my $meta = "$RANDOMDIR/$md5.meta";
2039		2714
2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2715	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2041	aio_write $fh, 0, (length $data), $data, 0;	2716	aio_write $fh, 0, (length $data), $data, 0;
2042	undef $fh;	2717	undef $fh;
2043	aio_rename "$meta~", $meta;	2718	aio_rename "$meta~", $meta;
2044		2719
		2720	my $slaying = "?random/$md5";
		2721
		2722	if ($exit->valid) {
2045	$exit->slaying ("?random/$md5");	2723	$exit->slaying ("?random/$md5");
2046	$exit->msg (undef);	2724	$exit->msg (undef);
		2725	}
2047	}	2726	}
2048	}	2727	}
2049		2728
2050	sub cf::object::player::enter_exit {	2729	sub cf::object::player::enter_exit {
2051	my ($self, $exit) = @_;	2730	my ($self, $exit) = @_;
2052		2731
2053	return unless $self->type == cf::PLAYER;	2732	return unless $self->type == cf::PLAYER;
2054		2733
2055	if ($exit->slaying eq "/!") {
2056	#TODO: this should de-fi-ni-te-ly not be a sync-job
2057	# the problem is that $exit might not survive long enough
2058	# so it needs to be done right now, right here
2059	cf::sync_job { prepare_random_map $exit };
2060	}
2061
2062	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2063	my $hp = $exit->stats->hp;
2064	my $sp = $exit->stats->sp;
2065
2066	$self->enter_link;	2734	$self->enter_link;
2067		2735
2068	(async {	2736	(async {
2069	$self->deactivate_recursive; # just to be sure	2737	$Coro::current->{desc} = "enter_exit";
		2738
2070	unless (eval {	2739	unless (eval {
		2740	$self->deactivate_recursive; # just to be sure
		2741
		2742	# random map handling
		2743	{
		2744	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2745
		2746	prepare_random_map $exit
		2747	if $exit->slaying eq "/!";
		2748	}
		2749
		2750	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2751	my $x = $exit->stats->hp;
		2752	my $y = $exit->stats->sp;
		2753
2071	$self->goto ($slaying, $hp, $sp);	2754	$self->goto ($map, $x, $y);
2072		2755
		2756	# if exit is damned, update players death & WoR home-position
		2757	$self->contr->savebed ($map, $x, $y)
		2758	if $exit->flag (cf::FLAG_DAMNED);
		2759
2073	1;	2760	1
2074	}) {	2761	}) {
2075	$self->message ("Something went wrong deep within the crossfire server. "	2762	$self->message ("Something went wrong deep within the deliantra server. "
2076	. "I'll try to bring you back to the map you were before. "	2763	. "I'll try to bring you back to the map you were before. "
2077	. "Please report this to the dungeon master!",	2764	. "Please report this to the dungeon master!",
2078	cf::NDI_UNIQUE | cf::NDI_RED);	2765	cf::NDI_UNIQUE | cf::NDI_RED);
2079		2766
2080	warn "ERROR in enter_exit: $@";	2767	warn "ERROR in enter_exit: $@";
…		…
2099		2786
2100	utf8::encode $text;	2787	utf8::encode $text;
2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2788	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2102	}	2789	}
2103		2790
		2791	=item $client->send_big_packet ($pkt)
		2792
		2793	Like C<send_packet>, but tries to compress large packets, and fragments
		2794	them as required.
		2795
		2796	=cut
		2797
		2798	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2799
		2800	sub cf::client::send_big_packet {
		2801	my ($self, $pkt) = @_;
		2802
		2803	# try lzf for large packets
		2804	$pkt = "lzf " . Compress::LZF::compress $pkt
		2805	if 1024 <= length $pkt and $self->{can_lzf};
		2806
		2807	# split very large packets
		2808	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2809	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2810	$pkt = "frag";
		2811	}
		2812
		2813	$self->send_packet ($pkt);
		2814	}
		2815
		2816	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2817
		2818	Send a drawinfo or msg packet to the client, formatting the msg for the
		2819	client if neccessary. C<$type> should be a string identifying the type of
		2820	the message, with C<log> being the default. If C<$color> is negative, suppress
		2821	the message unless the client supports the msg packet.
		2822
		2823	=cut
		2824
		2825	# non-persistent channels (usually the info channel)
		2826	our %CHANNEL = (
		2827	"c/motd" => {
		2828	id => "infobox",
		2829	title => "MOTD",
		2830	reply => undef,
		2831	tooltip => "The message of the day",
		2832	},
		2833	"c/identify" => {
		2834	id => "infobox",
		2835	title => "Identify",
		2836	reply => undef,
		2837	tooltip => "Items recently identified",
		2838	},
		2839	"c/examine" => {
		2840	id => "infobox",
		2841	title => "Examine",
		2842	reply => undef,
		2843	tooltip => "Signs and other items you examined",
		2844	},
		2845	"c/shopinfo" => {
		2846	id => "infobox",
		2847	title => "Shop Info",
		2848	reply => undef,
		2849	tooltip => "What your bargaining skill tells you about the shop",
		2850	},
		2851	"c/book" => {
		2852	id => "infobox",
		2853	title => "Book",
		2854	reply => undef,
		2855	tooltip => "The contents of a note or book",
		2856	},
		2857	"c/lookat" => {
		2858	id => "infobox",
		2859	title => "Look",
		2860	reply => undef,
		2861	tooltip => "What you saw there",
		2862	},
		2863	"c/who" => {
		2864	id => "infobox",
		2865	title => "Players",
		2866	reply => undef,
		2867	tooltip => "Shows players who are currently online",
		2868	},
		2869	"c/body" => {
		2870	id => "infobox",
		2871	title => "Body Parts",
		2872	reply => undef,
		2873	tooltip => "Shows which body parts you posess and are available",
		2874	},
		2875	"c/statistics" => {
		2876	id => "infobox",
		2877	title => "Statistics",
		2878	reply => undef,
		2879	tooltip => "Shows your primary statistics",
		2880	},
		2881	"c/skills" => {
		2882	id => "infobox",
		2883	title => "Skills",
		2884	reply => undef,
		2885	tooltip => "Shows your experience per skill and item power",
		2886	},
		2887	"c/shopitems" => {
		2888	id => "infobox",
		2889	title => "Shop Items",
		2890	reply => undef,
		2891	tooltip => "Shows the items currently for sale in this shop",
		2892	},
		2893	"c/resistances" => {
		2894	id => "infobox",
		2895	title => "Resistances",
		2896	reply => undef,
		2897	tooltip => "Shows your resistances",
		2898	},
		2899	"c/pets" => {
		2900	id => "infobox",
		2901	title => "Pets",
		2902	reply => undef,
		2903	tooltip => "Shows information abotu your pets/a specific pet",
		2904	},
		2905	"c/perceiveself" => {
		2906	id => "infobox",
		2907	title => "Perceive Self",
		2908	reply => undef,
		2909	tooltip => "You gained detailed knowledge about yourself",
		2910	},
		2911	"c/uptime" => {
		2912	id => "infobox",
		2913	title => "Uptime",
		2914	reply => undef,
		2915	tooltip => "How long the server has been running since last restart",
		2916	},
		2917	"c/mapinfo" => {
		2918	id => "infobox",
		2919	title => "Map Info",
		2920	reply => undef,
		2921	tooltip => "Information related to the maps",
		2922	},
		2923	"c/party" => {
		2924	id => "party",
		2925	title => "Party",
		2926	reply => "gsay ",
		2927	tooltip => "Messages and chat related to your party",
		2928	},
		2929	"c/death" => {
		2930	id => "death",
		2931	title => "Death",
		2932	reply => undef,
		2933	tooltip => "Reason for and more info about your most recent death",
		2934	},
		2935	"c/say" => $SAY_CHANNEL,
		2936	"c/chat" => $CHAT_CHANNEL,
		2937	);
		2938
		2939	sub cf::client::send_msg {
		2940	my ($self, $channel, $msg, $color, @extra) = @_;
		2941
		2942	$msg = $self->pl->expand_cfpod ($msg)
		2943	unless $color & cf::NDI_VERBATIM;
		2944
		2945	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2946
		2947	# check predefined channels, for the benefit of C
		2948	if ($CHANNEL{$channel}) {
		2949	$channel = $CHANNEL{$channel};
		2950
		2951	$self->ext_msg (channel_info => $channel);
		2952	$channel = $channel->{id};
		2953
		2954	} elsif (ref $channel) {
		2955	# send meta info to client, if not yet sent
		2956	unless (exists $self->{channel}{$channel->{id}}) {
		2957	$self->{channel}{$channel->{id}} = $channel;
		2958	$self->ext_msg (channel_info => $channel);
		2959	}
		2960
		2961	$channel = $channel->{id};
		2962	}
		2963
		2964	return unless @extra || length $msg;
		2965
		2966	# default colour, mask it out
		2967	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2968	if $color & cf::NDI_DEF;
		2969
		2970	my $pkt = "msg "
		2971	. $self->{json_coder}->encode (
		2972	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2973	);
		2974
		2975	$self->send_big_packet ($pkt);
		2976	}
		2977
2104	=item $client->ext_event ($type, %msg)	2978	=item $client->ext_msg ($type, @msg)
2105		2979
2106	Sends an exti event to the client.	2980	Sends an ext event to the client.
2107		2981
2108	=cut	2982	=cut
2109		2983
2110	sub cf::client::ext_event($$%) {	2984	sub cf::client::ext_msg($$@) {
2111	my ($self, $type, %msg) = @_;	2985	my ($self, $type, @msg) = @_;
2112		2986
		2987	if ($self->extcmd == 2) {
		2988	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2989	} elsif ($self->extcmd == 1) { # TODO: remove
2113	$msg{msgtype} = "event_$type";	2990	push @msg, msgtype => "event_$type";
2114	$self->send_packet ("ext " . cf::to_json \%msg);	2991	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
		2994
		2995	=item $client->ext_reply ($msgid, @msg)
		2996
		2997	Sends an ext reply to the client.
		2998
		2999	=cut
		3000
		3001	sub cf::client::ext_reply($$@) {
		3002	my ($self, $id, @msg) = @_;
		3003
		3004	if ($self->extcmd == 2) {
		3005	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3006	} elsif ($self->extcmd == 1) {
		3007	#TODO: version 1, remove
		3008	unshift @msg, msgtype => "reply", msgid => $id;
		3009	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3010	}
2115	}	3011	}
2116		3012
2117	=item $success = $client->query ($flags, "text", \&cb)	3013	=item $success = $client->query ($flags, "text", \&cb)
2118		3014
2119	Queues a query to the client, calling the given callback with	3015	Queues a query to the client, calling the given callback with
2120	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3016	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2121	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3017	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2122		3018
2123	Queries can fail, so check the return code. Or don't, as queries will become	3019	Queries can fail, so check the return code. Or don't, as queries will
2124	reliable at some point in the future.	3020	become reliable at some point in the future.
2125		3021
2126	=cut	3022	=cut
2127		3023
2128	sub cf::client::query {	3024	sub cf::client::query {
2129	my ($self, $flags, $text, $cb) = @_;	3025	my ($self, $flags, $text, $cb) = @_;
…		…
2137	utf8::encode $text;	3033	utf8::encode $text;
2138	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3034	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2139		3035
2140	$self->send_packet ($self->{query_queue}[0][0])	3036	$self->send_packet ($self->{query_queue}[0][0])
2141	if @{ $self->{query_queue} } == 1;	3037	if @{ $self->{query_queue} } == 1;
		3038
		3039	1
2142	}	3040	}
2143		3041
2144	cf::client->attach (	3042	cf::client->attach (
		3043	on_connect => sub {
		3044	my ($ns) = @_;
		3045
		3046	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3047	},
2145	on_reply => sub {	3048	on_reply => sub {
2146	my ($ns, $msg) = @_;	3049	my ($ns, $msg) = @_;
2147		3050
2148	# this weird shuffling is so that direct followup queries	3051	# this weird shuffling is so that direct followup queries
2149	# get handled first	3052	# get handled first
…		…
2161	} else {	3064	} else {
2162	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3065	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2163	}	3066	}
2164	}	3067	}
2165	},	3068	},
		3069	on_exticmd => sub {
		3070	my ($ns, $buf) = @_;
		3071
		3072	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3073
		3074	if (ref $msg) {
		3075	my ($type, $reply, @payload) =
		3076	"ARRAY" eq ref $msg
		3077	? @$msg
		3078	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3079
		3080	my @reply;
		3081
		3082	if (my $cb = $EXTICMD{$type}) {
		3083	@reply = $cb->($ns, @payload);
		3084	}
		3085
		3086	$ns->ext_reply ($reply, @reply)
		3087	if $reply;
		3088
		3089	} else {
		3090	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3091	}
		3092
		3093	cf::override;
		3094	},
2166	);	3095	);
2167		3096
2168	=item $client->async (\&cb)	3097	=item $client->async (\&cb)
2169		3098
2170	Create a new coroutine, running the specified callback. The coroutine will	3099	Create a new coroutine, running the specified callback. The coroutine will
…		…
2211	our $safe = new Safe "safe";	3140	our $safe = new Safe "safe";
2212	our $safe_hole = new Safe::Hole;	3141	our $safe_hole = new Safe::Hole;
2213		3142
2214	$SIG{FPE} = 'IGNORE';	3143	$SIG{FPE} = 'IGNORE';
2215		3144
2216	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3145	$safe->permit_only (Opcode::opset qw(
		3146	:base_core :base_mem :base_orig :base_math :base_loop
		3147	grepstart grepwhile mapstart mapwhile
		3148	sort time
		3149	));
2217		3150
2218	# here we export the classes and methods available to script code	3151	# here we export the classes and methods available to script code
2219		3152
2220	=pod	3153	=pod
2221		3154
2222	The following functions and methods are available within a safe environment:	3155	The following functions and methods are available within a safe environment:
2223		3156
2224	cf::object contr pay_amount pay_player map	3157	cf::object
		3158	contr pay_amount pay_player map x y force_find force_add destroy
		3159	insert remove name archname title slaying race decrease split
		3160	value
		3161
2225	cf::object::player player	3162	cf::object::player
2226	cf::player peaceful	3163	player
2227	cf::map trigger	3164
		3165	cf::player
		3166	peaceful
		3167
		3168	cf::map
		3169	trigger
2228		3170
2229	=cut	3171	=cut
2230		3172
2231	for (	3173	for (
2232	["cf::object" => qw(contr pay_amount pay_player map)],	3174	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3175	insert remove inv nrof name archname title slaying race
		3176	decrease split destroy change_exp value msg lore send_msg)],
2233	["cf::object::player" => qw(player)],	3177	["cf::object::player" => qw(player)],
2234	["cf::player" => qw(peaceful)],	3178	["cf::player" => qw(peaceful send_msg)],
2235	["cf::map" => qw(trigger)],	3179	["cf::map" => qw(trigger)],
2236	) {	3180	) {
2237	no strict 'refs';	3181	no strict 'refs';
2238	my ($pkg, @funs) = @$_;	3182	my ($pkg, @funs) = @$_;
2239	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3183	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2257		3201
2258	my $qcode = $code;	3202	my $qcode = $code;
2259	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3203	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2260	$qcode =~ s/\n/\\n/g;	3204	$qcode =~ s/\n/\\n/g;
2261		3205
		3206	%vars = (_dummy => 0) unless %vars;
		3207
		3208	my @res;
2262	local $_;	3209	local $_;
2263	local @safe::cf::_safe_eval_args = values %vars;
2264		3210
2265	my $eval =	3211	my $eval =
2266	"do {\n"	3212	"do {\n"
2267	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3213	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2268	. "#line 0 \"{$qcode}\"\n"	3214	. "#line 0 \"{$qcode}\"\n"
2269	. $code	3215	. $code
2270	. "\n}"	3216	. "\n}"
2271	;	3217	;
2272		3218
		3219	if ($CFG{safe_eval}) {
2273	sub_generation_inc;	3220	sub_generation_inc;
		3221	local @safe::cf::_safe_eval_args = values %vars;
2274	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3222	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2275	sub_generation_inc;	3223	sub_generation_inc;
		3224	} else {
		3225	local @cf::_safe_eval_args = values %vars;
		3226	@res = wantarray ? eval eval : scalar eval $eval;
		3227	}
2276		3228
2277	if ($@) {	3229	if ($@) {
2278	warn "$@";	3230	warn "$@";
2279	warn "while executing safe code '$code'\n";	3231	warn "while executing safe code '$code'\n";
2280	warn "with arguments " . (join " ", %vars) . "\n";	3232	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2308	=back	3260	=back
2309		3261
2310	=cut	3262	=cut
2311		3263
2312	#############################################################################	3264	#############################################################################
2313
2314	=head2 EXTENSION DATABASE SUPPORT
2315
2316	Crossfire maintains a very simple database for extension use. It can
2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2318	convert to/from binary).
2319
2320	The parameter C<$family> should best start with the name of the extension
2321	using it, it should be unique.
2322
2323	=over 4
2324
2325	=item $value = cf::db_get $family => $key
2326
2327	Returns a single value from the database.
2328
2329	=item cf::db_put $family => $key => $value
2330
2331	Stores the given C<$value> in the family.
2332
2333	=cut
2334
2335	our $DB;
2336
2337	sub db_init {
2338	unless ($DB) {
2339	$DB = BDB::db_create $DB_ENV;
2340
2341	cf::sync_job {
2342	eval {
2343	$DB->set_flags (BDB::CHKSUM);
2344
2345	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2347	cf::cleanup "db_open(db): $!" if $!;
2348	};
2349	cf::cleanup "db_open(db): $@" if $@;
2350	};
2351	}
2352	}
2353
2354	sub db_get($$) {
2355	my $key = "$_[0]/$_[1]";
2356
2357	cf::sync_job {
2358	BDB::db_get $DB, undef, $key, my $data;
2359
2360	$! ? ()
2361	: $data
2362	}
2363	}
2364
2365	sub db_put($$$) {
2366	BDB::dbreq_pri 4;
2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2368	}
2369
2370	=item cf::cache $id => [$paths...], $processversion => $process
2371
2372	Generic caching function that returns the value of the resource $id,
2373	caching and regenerating as required.
2374
2375	This function can block.
2376
2377	=cut
2378
2379	sub cache {
2380	my ($id, $src, $processversion, $process) = @_;
2381
2382	my $meta =
2383	join "\x00",
2384	$processversion,
2385	map {
2386	aio_stat $_
2387	and Carp::croak "$_: $!";
2388
2389	($_, (stat _)[7,9])
2390	} @$src;
2391
2392	my $dbmeta = db_get cache => "$id/meta";
2393	if ($dbmeta ne $meta) {
2394	# changed, we may need to process
2395
2396	my @data;
2397	my $md5;
2398
2399	for (0 .. $#$src) {
2400	0 <= aio_load $src->[$_], $data[$_]
2401	or Carp::croak "$src->[$_]: $!";
2402	}
2403
2404	# if processing is expensive, check
2405	# checksum first
2406	if (1) {
2407	$md5 =
2408	join "\x00",
2409	$processversion,
2410	map {
2411	Coro::cede;
2412	($src->[$_], Digest::MD5::md5_hex $data[$_])
2413	} 0.. $#$src;
2414
2415
2416	my $dbmd5 = db_get cache => "$id/md5";
2417	if ($dbmd5 eq $md5) {
2418	db_put cache => "$id/meta", $meta;
2419
2420	return db_get cache => "$id/data";
2421	}
2422	}
2423
2424	my $t1 = Time::HiRes::time;
2425	my $data = $process->(\@data);
2426	my $t2 = Time::HiRes::time;
2427
2428	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2429
2430	db_put cache => "$id/data", $data;
2431	db_put cache => "$id/md5" , $md5;
2432	db_put cache => "$id/meta", $meta;
2433
2434	return $data;
2435	}
2436
2437	db_get cache => "$id/data"
2438	}
2439
2440	=item fork_call { }, $args
2441
2442	Executes the given code block with the given arguments in a seperate
2443	process, returning the results. Everything must be serialisable with
2444	Coro::Storable. May, of course, block. Note that the executed sub may
2445	never block itself or use any form of Event handling.
2446
2447	=cut
2448
2449	sub fork_call(&@) {
2450	my ($cb, @args) = @_;
2451
2452	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2453	# or die "socketpair: $!";
2454	pipe my $fh1, my $fh2
2455	or die "pipe: $!";
2456
2457	if (my $pid = fork) {
2458	close $fh2;
2459
2460	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2461	$res = Coro::Storable::thaw $res;
2462
2463	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2464
2465	die $$res unless "ARRAY" eq ref $res;
2466
2467	return wantarray ? @$res : $res->[-1];
2468	} else {
2469	reset_signals;
2470	local $SIG{__WARN__};
2471	local $SIG{__DIE__};
2472	eval {
2473	close $fh1;
2474
2475	my @res = eval { $cb->(@args) };
2476	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2477	};
2478
2479	warn $@ if $@;
2480	_exit 0;
2481	}
2482	}
2483
2484	#############################################################################
2485	# the server's init and main functions	3265	# the server's init and main functions
2486		3266
2487	sub load_facedata($) {	3267	sub load_facedata($) {
2488	my ($path) = @_;	3268	my ($path) = @_;
		3269
		3270	# HACK to clear player env face cache, we need some signal framework
		3271	# for this (global event?)
		3272	%ext::player_env::MUSIC_FACE_CACHE = ();
		3273
		3274	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2489		3275
2490	warn "loading facedata from $path\n";	3276	warn "loading facedata from $path\n";
2491		3277
2492	my $facedata;	3278	my $facedata;
2493	0 < aio_load $path, $facedata	3279	0 < aio_load $path, $facedata
…		…
2496	$facedata = Coro::Storable::thaw $facedata;	3282	$facedata = Coro::Storable::thaw $facedata;
2497		3283
2498	$facedata->{version} == 2	3284	$facedata->{version} == 2
2499	or cf::cleanup "$path: version mismatch, cannot proceed.";	3285	or cf::cleanup "$path: version mismatch, cannot proceed.";
2500		3286
		3287	# patch in the exptable
		3288	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3289	$facedata->{resource}{"res/exp_table"} = {
		3290	type => FT_RSRC,
		3291	data => $exp_table,
		3292	hash => (Digest::MD5::md5 $exp_table),
		3293	};
		3294	cf::cede_to_tick;
		3295
2501	{	3296	{
2502	my $faces = $facedata->{faceinfo};	3297	my $faces = $facedata->{faceinfo};
2503		3298
2504	while (my ($face, $info) = each %$faces) {	3299	while (my ($face, $info) = each %$faces) {
2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3300	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2506	warn "$face $info->{magicmap}\n" if $face =~ /obol/;#d#	3301
2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3302	cf::face::set_visibility $idx, $info->{visibility};
		3303	cf::face::set_magicmap $idx, $info->{magicmap};
2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3304	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3305	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2510	Coro::cede;	3306
		3307	cf::cede_to_tick;
2511	}	3308	}
2512		3309
2513	while (my ($face, $info) = each %$faces) {	3310	while (my ($face, $info) = each %$faces) {
2514	next unless $info->{smooth};	3311	next unless $info->{smooth};
		3312
2515	my $idx = cf::face::find $face	3313	my $idx = cf::face::find $face
2516	or next;	3314	or next;
		3315
2517	if (my $smooth = cf::face::find $info->{smooth}) {	3316	if (my $smooth = cf::face::find $info->{smooth}) {
		3317	cf::face::set_smooth $idx, $smooth;
2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3318	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2519	} else {	3319	} else {
2520	warn "smooth face '$info->{smooth}' not found for face '$face'";	3320	warn "smooth face '$info->{smooth}' not found for face '$face'";
2521	}	3321	}
2522	Coro::cede;	3322
		3323	cf::cede_to_tick;
2523	}	3324	}
2524	}	3325	}
2525		3326
2526	{	3327	{
2527	my $anims = $facedata->{animinfo};	3328	my $anims = $facedata->{animinfo};
2528		3329
2529	while (my ($anim, $info) = each %$anims) {	3330	while (my ($anim, $info) = each %$anims) {
2530	cf::anim::set $anim, $info->{frames}, $info->{facings};	3331	cf::anim::set $anim, $info->{frames}, $info->{facings};
2531	Coro::cede;	3332	cf::cede_to_tick;
2532	}	3333	}
2533		3334
2534	cf::anim::invalidate_all; # d'oh	3335	cf::anim::invalidate_all; # d'oh
2535	}	3336	}
2536		3337
		3338	{
		3339	my $res = $facedata->{resource};
		3340
		3341	while (my ($name, $info) = each %$res) {
		3342	if (defined $info->{type}) {
		3343	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3344
		3345	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3346	cf::face::set_type $idx, $info->{type};
		3347	} else {
		3348	$RESOURCE{$name} = $info;
		3349	}
		3350
		3351	cf::cede_to_tick;
		3352	}
		3353	}
		3354
		3355	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3356
2537	1	3357	1
2538	}	3358	}
2539		3359
		3360	cf::global->attach (on_resource_update => sub {
		3361	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3362	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3363
		3364	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3365	my $sound = $soundconf->{compat}[$_]
		3366	or next;
		3367
		3368	my $face = cf::face::find "sound/$sound->[1]";
		3369	cf::sound::set $sound->[0] => $face;
		3370	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3371	}
		3372
		3373	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3374	my $face = cf::face::find "sound/$v";
		3375	cf::sound::set $k => $face;
		3376	}
		3377	}
		3378	});
		3379
		3380	register_exticmd fx_want => sub {
		3381	my ($ns, $want) = @_;
		3382
		3383	while (my ($k, $v) = each %$want) {
		3384	$ns->fx_want ($k, $v);
		3385	}
		3386	};
		3387
		3388	sub load_resource_file($) {
		3389	my $guard = lock_acquire "load_resource_file";
		3390
		3391	my $status = load_resource_file_ $_[0];
		3392	get_slot 0.1, 100;
		3393	cf::arch::commit_load;
		3394
		3395	$status
		3396	}
		3397
2540	sub reload_regions {	3398	sub reload_regions {
		3399	# HACK to clear player env face cache, we need some signal framework
		3400	# for this (global event?)
		3401	%ext::player_env::MUSIC_FACE_CACHE = ();
		3402
2541	load_resource_file "$MAPDIR/regions"	3403	load_resource_file "$MAPDIR/regions"
2542	or die "unable to load regions file\n";	3404	or die "unable to load regions file\n";
		3405
		3406	for (cf::region::list) {
		3407	$_->{match} = qr/$_->{match}/
		3408	if exists $_->{match};
		3409	}
2543	}	3410	}
2544		3411
2545	sub reload_facedata {	3412	sub reload_facedata {
2546	load_facedata "$DATADIR/facedata"	3413	load_facedata "$DATADIR/facedata"
2547	or die "unable to load facedata\n";	3414	or die "unable to load facedata\n";
…		…
2558	}	3425	}
2559		3426
2560	sub reload_resources {	3427	sub reload_resources {
2561	warn "reloading resource files...\n";	3428	warn "reloading resource files...\n";
2562		3429
2563	reload_regions;
2564	reload_facedata;	3430	reload_facedata;
2565	reload_archetypes;	3431	reload_archetypes;
		3432	reload_regions;
2566	reload_treasures;	3433	reload_treasures;
2567		3434
2568	warn "finished reloading resource files\n";	3435	warn "finished reloading resource files\n";
2569	}	3436	}
2570		3437
2571	sub init {	3438	sub reload_config {
2572	reload_resources;	3439	warn "reloading config file...\n";
2573	}
2574		3440
2575	sub cfg_load {
2576	open my $fh, "<:utf8", "$CONFDIR/config"	3441	open my $fh, "<:utf8", "$CONFDIR/config"
2577	or return;	3442	or return;
2578		3443
2579	local $/;	3444	local $/;
2580	*CFG = YAML::Syck::Load <$fh>;	3445	*CFG = YAML::XS::Load scalar <$fh>;
2581		3446
2582	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3447	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2583		3448
2584	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3449	$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};	3450	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3454	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2590	and die "WARNING: m(un)lockall failed: $!\n";	3455	and die "WARNING: m(un)lockall failed: $!\n";
2591	};	3456	};
2592	warn $@ if $@;	3457	warn $@ if $@;
2593	}	3458	}
		3459
		3460	warn "finished reloading resource files\n";
		3461	}
		3462
		3463	sub pidfile() {
		3464	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3465	or die "$PIDFILE: $!";
		3466	flock $fh, &Fcntl::LOCK_EX
		3467	or die "$PIDFILE: flock: $!";
		3468	$fh
		3469	}
		3470
		3471	# make sure only one server instance is running at any one time
		3472	sub atomic {
		3473	my $fh = pidfile;
		3474
		3475	my $pid = <$fh>;
		3476	kill 9, $pid if $pid > 0;
		3477
		3478	seek $fh, 0, 0;
		3479	print $fh $$;
		3480	}
		3481
		3482	sub main_loop {
		3483	warn "EV::loop starting\n";
		3484	if (1) {
		3485	EV::loop;
		3486	}
		3487	warn "EV::loop returned\n";
		3488	goto &main_loop unless $REALLY_UNLOOP;
2594	}	3489	}
2595		3490
2596	sub main {	3491	sub main {
		3492	cf::init_globals; # initialise logging
		3493
		3494	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3495	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3496	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3497	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3498
		3499	cf::init_experience;
		3500	cf::init_anim;
		3501	cf::init_attackmess;
		3502	cf::init_dynamic;
		3503
		3504	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3505
2597	# we must not ever block the main coroutine	3506	# we must not ever block the main coroutine
2598	local $Coro::idle = sub {	3507	local $Coro::idle = sub {
2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3508	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2600	(async {	3509	(async {
2601	Event::one_event;	3510	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3511	EV::loop EV::LOOP_ONESHOT;
2602	})->prio (Coro::PRIO_MAX);	3512	})->prio (Coro::PRIO_MAX);
2603	};	3513	};
2604		3514
2605	cfg_load;	3515	evthread_start IO::AIO::poll_fileno;
		3516
		3517	cf::sync_job {
		3518	cf::load_settings;
		3519	cf::load_materials;
		3520
		3521	reload_resources;
		3522	reload_config;
2606	db_init;	3523	db_init;
		3524
		3525	cf::init_uuid;
		3526	cf::init_signals;
		3527	cf::init_commands;
		3528	cf::init_skills;
		3529
		3530	cf::init_beforeplay;
		3531
		3532	atomic;
		3533
2607	load_extensions;	3534	load_extensions;
2608		3535
2609	$TICK_WATCHER->start;	3536	utime time, time, $RUNTIMEFILE;
2610	Event::loop;	3537
		3538	# no (long-running) fork's whatsoever before this point(!)
		3539	use POSIX ();
		3540	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3541
		3542	(pop @POST_INIT)->(0) while @POST_INIT;
		3543	};
		3544
		3545	main_loop;
2611	}	3546	}
2612		3547
2613	#############################################################################	3548	#############################################################################
2614	# initialisation and cleanup	3549	# initialisation and cleanup
2615		3550
2616	# install some emergency cleanup handlers	3551	# install some emergency cleanup handlers
2617	BEGIN {	3552	BEGIN {
		3553	our %SIGWATCHER = ();
2618	for my $signal (qw(INT HUP TERM)) {	3554	for my $signal (qw(INT HUP TERM)) {
2619	Event->signal (	3555	$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";	3556	cf::cleanup "SIG$signal";
2626	},
2627	);	3557	};
		3558	}
		3559	}
		3560
		3561	sub write_runtime_sync {
		3562	# first touch the runtime file to show we are still running:
		3563	# the fsync below can take a very very long time.
		3564
		3565	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3566
		3567	my $guard = cf::lock_acquire "write_runtime";
		3568
		3569	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3570	or return;
		3571
		3572	my $value = $cf::RUNTIME + 90 + 10;
		3573	# 10 is the runtime save interval, for a monotonic clock
		3574	# 60 allows for the watchdog to kill the server.
		3575
		3576	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3577	and return;
		3578
		3579	# always fsync - this file is important
		3580	aio_fsync $fh
		3581	and return;
		3582
		3583	# touch it again to show we are up-to-date
		3584	aio_utime $fh, undef, undef;
		3585
		3586	close $fh
		3587	or return;
		3588
		3589	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3590	and return;
		3591
		3592	warn "runtime file written.\n";
		3593
2628	}	3594	1
		3595	}
		3596
		3597	our $uuid_lock;
		3598	our $uuid_skip;
		3599
		3600	sub write_uuid_sync($) {
		3601	$uuid_skip ||= $_[0];
		3602
		3603	return if $uuid_lock;
		3604	local $uuid_lock = 1;
		3605
		3606	my $uuid = "$LOCALDIR/uuid";
		3607
		3608	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3609	or return;
		3610
		3611	my $value = uuid_seq uuid_cur;
		3612
		3613	unless ($value) {
		3614	warn "cowardly refusing to write zero uuid value!\n";
		3615	return;
		3616	}
		3617
		3618	my $value = uuid_str $value + $uuid_skip;
		3619	$uuid_skip = 0;
		3620
		3621	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3622	and return;
		3623
		3624	# always fsync - this file is important
		3625	aio_fsync $fh
		3626	and return;
		3627
		3628	close $fh
		3629	or return;
		3630
		3631	aio_rename "$uuid~", $uuid
		3632	and return;
		3633
		3634	warn "uuid file written ($value).\n";
		3635
		3636	1
		3637
		3638	}
		3639
		3640	sub write_uuid($$) {
		3641	my ($skip, $sync) = @_;
		3642
		3643	$sync ? write_uuid_sync $skip
		3644	: async { write_uuid_sync $skip };
2629	}	3645	}
2630		3646
2631	sub emergency_save() {	3647	sub emergency_save() {
2632	my $freeze_guard = cf::freeze_mainloop;	3648	my $freeze_guard = cf::freeze_mainloop;
2633		3649
2634	warn "enter emergency perl save\n";	3650	warn "emergency_perl_save: enter\n";
2635		3651
2636	cf::sync_job {	3652	cf::sync_job {
		3653	# this is a trade-off: we want to be very quick here, so
		3654	# save all maps without fsync, and later call a global sync
		3655	# (which in turn might be very very slow)
		3656	local $USE_FSYNC = 0;
		3657
2637	# use a peculiar iteration method to avoid tripping on perl	3658	# use a peculiar iteration method to avoid tripping on perl
2638	# refcount bugs in for. also avoids problems with players	3659	# refcount bugs in for. also avoids problems with players
2639	# and maps saved/destroyed asynchronously.	3660	# and maps saved/destroyed asynchronously.
2640	warn "begin emergency player save\n";	3661	warn "emergency_perl_save: begin player save\n";
2641	for my $login (keys %cf::PLAYER) {	3662	for my $login (keys %cf::PLAYER) {
2642	my $pl = $cf::PLAYER{$login} or next;	3663	my $pl = $cf::PLAYER{$login} or next;
2643	$pl->valid or next;	3664	$pl->valid or next;
		3665	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2644	$pl->save;	3666	$pl->save;
2645	}	3667	}
2646	warn "end emergency player save\n";	3668	warn "emergency_perl_save: end player save\n";
2647		3669
2648	warn "begin emergency map save\n";	3670	warn "emergency_perl_save: begin map save\n";
2649	for my $path (keys %cf::MAP) {	3671	for my $path (keys %cf::MAP) {
2650	my $map = $cf::MAP{$path} or next;	3672	my $map = $cf::MAP{$path} or next;
2651	$map->valid or next;	3673	$map->valid or next;
2652	$map->save;	3674	$map->save;
2653	}	3675	}
2654	warn "end emergency map save\n";	3676	warn "emergency_perl_save: end map save\n";
2655		3677
2656	warn "begin emergency database checkpoint\n";	3678	warn "emergency_perl_save: begin database checkpoint\n";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3679	BDB::db_env_txn_checkpoint $DB_ENV;
2658	warn "end emergency database checkpoint\n";	3680	warn "emergency_perl_save: end database checkpoint\n";
		3681
		3682	warn "emergency_perl_save: begin write uuid\n";
		3683	write_uuid_sync 1;
		3684	warn "emergency_perl_save: end write uuid\n";
2659	};	3685	};
2660		3686
		3687	warn "emergency_perl_save: starting sync()\n";
		3688	IO::AIO::aio_sync sub {
		3689	warn "emergency_perl_save: finished sync()\n";
		3690	};
		3691
2661	warn "leave emergency perl save\n";	3692	warn "emergency_perl_save: leave\n";
2662	}	3693	}
2663		3694
2664	sub post_cleanup {	3695	sub post_cleanup {
2665	my ($make_core) = @_;	3696	my ($make_core) = @_;
2666		3697
2667	warn Carp::longmess "post_cleanup backtrace"	3698	warn Carp::longmess "post_cleanup backtrace"
2668	if $make_core;	3699	if $make_core;
		3700
		3701	my $fh = pidfile;
		3702	unlink $PIDFILE if <$fh> == $$;
		3703	}
		3704
		3705	# a safer delete_package, copied from Symbol
		3706	sub clear_package($) {
		3707	my $pkg = shift;
		3708
		3709	# expand to full symbol table name if needed
		3710	unless ($pkg =~ /^main::.*::$/) {
		3711	$pkg = "main$pkg" if $pkg =~ /^::/;
		3712	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3713	$pkg .= '::' unless $pkg =~ /::$/;
		3714	}
		3715
		3716	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3717	my $stem_symtab = *{$stem}{HASH};
		3718
		3719	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3720	or return;
		3721
		3722	# clear all symbols
		3723	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3724	for my $name (keys %$leaf_symtab) {
		3725	_gv_clear *{"$pkg$name"};
		3726	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3727	}
		3728	warn "cleared package $pkg\n";#d#
2669	}	3729	}
2670		3730
2671	sub do_reload_perl() {	3731	sub do_reload_perl() {
2672	# can/must only be called in main	3732	# can/must only be called in main
2673	if ($Coro::current != $Coro::main) {	3733	if ($Coro::current != $Coro::main) {
2674	warn "can only reload from main coroutine";	3734	warn "can only reload from main coroutine";
2675	return;	3735	return;
2676	}	3736	}
2677		3737
		3738	return if $RELOAD++;
		3739
		3740	my $t1 = EV::time;
		3741
		3742	while ($RELOAD) {
2678	warn "reloading...";	3743	warn "reloading...";
2679		3744
2680	warn "entering sync_job";	3745	warn "entering sync_job";
2681		3746
2682	cf::sync_job {	3747	cf::sync_job {
2683	cf::write_runtime; # external watchdog should not bark	3748	cf::write_runtime_sync; # external watchdog should not bark
2684	cf::emergency_save;	3749	cf::emergency_save;
2685	cf::write_runtime; # external watchdog should not bark	3750	cf::write_runtime_sync; # external watchdog should not bark
2686		3751
2687	warn "syncing database to disk";	3752	warn "syncing database to disk";
2688	BDB::db_env_txn_checkpoint $DB_ENV;	3753	BDB::db_env_txn_checkpoint $DB_ENV;
2689		3754
2690	# if anything goes wrong in here, we should simply crash as we already saved	3755	# if anything goes wrong in here, we should simply crash as we already saved
2691		3756
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";	3757	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;	3758	while (IO::AIO::nreqs || BDB::nreqs) {
2703	warn "iterate...";	3759	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	}	3760	}
2728		3761
2729	warn "... nuking $pkg";	3762	warn "cancelling all extension coros";
2730	Symbol::delete_package $pkg;	3763	$_->cancel for values %EXT_CORO;
2731	}	3764	%EXT_CORO = ();
2732		3765
2733	warn "unloading all perl modules loaded from $LIBDIR";	3766	warn "removing commands";
2734	while (my ($k, $v) = each %INC) {	3767	%COMMAND = ();
2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2736		3768
		3769	warn "removing ext/exti commands";
		3770	%EXTCMD = ();
		3771	%EXTICMD = ();
		3772
		3773	warn "unloading/nuking all extensions";
		3774	for my $pkg (@EXTS) {
2737	warn "... unloading $k";	3775	warn "... unloading $pkg";
2738	delete $INC{$k};
2739		3776
2740	$k =~ s/\.pm$//;
2741	$k =~ s/\//::/g;
2742
2743	if (my $cb = $k->can ("unload_module")) {	3777	if (my $cb = $pkg->can ("unload")) {
		3778	eval {
2744	$cb->();	3779	$cb->($pkg);
		3780	1
		3781	} or warn "$pkg unloaded, but with errors: $@";
		3782	}
		3783
		3784	warn "... clearing $pkg";
		3785	clear_package $pkg;
2745	}	3786	}
2746		3787
2747	Symbol::delete_package $k;	3788	warn "unloading all perl modules loaded from $LIBDIR";
		3789	while (my ($k, $v) = each %INC) {
		3790	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3791
		3792	warn "... unloading $k";
		3793	delete $INC{$k};
		3794
		3795	$k =~ s/\.pm$//;
		3796	$k =~ s/\//::/g;
		3797
		3798	if (my $cb = $k->can ("unload_module")) {
		3799	$cb->();
		3800	}
		3801
		3802	clear_package $k;
2748	}	3803	}
2749		3804
2750	warn "getting rid of safe::, as good as possible";	3805	warn "getting rid of safe::, as good as possible";
2751	Symbol::delete_package "safe::$_"	3806	clear_package "safe::$_"
2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3807	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2753		3808
2754	warn "unloading cf.pm \"a bit\"";	3809	warn "unloading cf.pm \"a bit\"";
2755	delete $INC{"cf.pm"};	3810	delete $INC{"cf.pm"};
2756	delete $INC{"cf/pod.pm"};	3811	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2757		3812
2758	# don't, removes xs symbols, too,	3813	# don't, removes xs symbols, too,
2759	# and global variables created in xs	3814	# and global variables created in xs
2760	#Symbol::delete_package __PACKAGE__;	3815	#clear_package __PACKAGE__;
2761		3816
2762	warn "unload completed, starting to reload now";	3817	warn "unload completed, starting to reload now";
2763		3818
2764	warn "reloading cf.pm";	3819	warn "reloading cf.pm";
2765	require cf;	3820	require cf;
2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3821	cf::_connect_to_perl_1;
2767		3822
2768	warn "loading config and database again";	3823	warn "loading config and database again";
2769	cf::cfg_load;	3824	cf::reload_config;
2770		3825
2771	warn "loading extensions";	3826	warn "loading extensions";
2772	cf::load_extensions;	3827	cf::load_extensions;
2773		3828
		3829	if ($REATTACH_ON_RELOAD) {
2774	warn "reattaching attachments to objects/players";	3830	warn "reattaching attachments to objects/players";
2775	_global_reattach; # objects, sockets	3831	_global_reattach; # objects, sockets
2776	warn "reattaching attachments to maps";	3832	warn "reattaching attachments to maps";
2777	reattach $_ for values %MAP;	3833	reattach $_ for values %MAP;
2778	warn "reattaching attachments to players";	3834	warn "reattaching attachments to players";
2779	reattach $_ for values %PLAYER;	3835	reattach $_ for values %PLAYER;
		3836	}
2780		3837
		3838	warn "running post_init jobs";
		3839	(pop @POST_INIT)->(1) while @POST_INIT;
		3840
2781	warn "leaving sync_job";	3841	warn "leaving sync_job";
2782		3842
2783	1	3843	1
2784	} or do {	3844	} or do {
2785	warn $@;	3845	warn $@;
2786	warn "error while reloading, exiting.";	3846	cf::cleanup "error while reloading, exiting.";
2787	exit 1;
2788	};	3847	};
2789		3848
2790	warn "reloaded";	3849	warn "reloaded";
		3850	--$RELOAD;
		3851	}
		3852
		3853	$t1 = EV::time - $t1;
		3854	warn "reload completed in ${t1}s\n";
2791	};	3855	};
2792		3856
2793	our $RELOAD_WATCHER; # used only during reload	3857	our $RELOAD_WATCHER; # used only during reload
2794		3858
2795	sub reload_perl() {	3859	sub reload_perl() {
2796	# doing reload synchronously and two reloads happen back-to-back,	3860	# doing reload synchronously and two reloads happen back-to-back,
2797	# coro crashes during coro_state_free->destroy here.	3861	# coro crashes during coro_state_free->destroy here.
2798		3862
2799	$RELOAD_WATCHER ||= Event->timer (	3863	$RELOAD_WATCHER ||= cf::async {
2800	reentrant => 0,	3864	Coro::AIO::aio_wait cache_extensions;
2801	after => 0,	3865
2802	data => WF_AUTOCANCEL,	3866	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2803	cb => sub {
2804	do_reload_perl;	3867	do_reload_perl;
2805	undef $RELOAD_WATCHER;	3868	undef $RELOAD_WATCHER;
2806	},	3869	};
2807	);	3870	};
2808	}	3871	}
2809		3872
2810	register_command "reload" => sub {	3873	register_command "reload" => sub {
2811	my ($who, $arg) = @_;	3874	my ($who, $arg) = @_;
2812		3875
2813	if ($who->flag (FLAG_WIZ)) {	3876	if ($who->flag (FLAG_WIZ)) {
2814	$who->message ("reloading server.");	3877	$who->message ("reloading server.");
		3878	async {
		3879	$Coro::current->{desc} = "perl_reload";
2815	async { reload_perl };	3880	reload_perl;
		3881	};
2816	}	3882	}
2817	};	3883	};
2818		3884
2819	unshift @INC, $LIBDIR;	3885	unshift @INC, $LIBDIR;
2820		3886
…		…
2822		3888
2823	our @WAIT_FOR_TICK;	3889	our @WAIT_FOR_TICK;
2824	our @WAIT_FOR_TICK_BEGIN;	3890	our @WAIT_FOR_TICK_BEGIN;
2825		3891
2826	sub wait_for_tick {	3892	sub wait_for_tick {
2827	return unless $TICK_WATCHER->is_active;
2828	return if $Coro::current == $Coro::main;	3893	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2829		3894
2830	my $signal = new Coro::Signal;	3895	my $signal = new Coro::Signal;
2831	push @WAIT_FOR_TICK, $signal;	3896	push @WAIT_FOR_TICK, $signal;
2832	$signal->wait;	3897	$signal->wait;
2833	}	3898	}
2834		3899
2835	sub wait_for_tick_begin {	3900	sub wait_for_tick_begin {
2836	return unless $TICK_WATCHER->is_active;
2837	return if $Coro::current == $Coro::main;	3901	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2838		3902
2839	my $signal = new Coro::Signal;	3903	my $signal = new Coro::Signal;
2840	push @WAIT_FOR_TICK_BEGIN, $signal;	3904	push @WAIT_FOR_TICK_BEGIN, $signal;
2841	$signal->wait;	3905	$signal->wait;
2842	}	3906	}
2843		3907
2844	my $min = 1e6;#d#	3908	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) {	3909	if ($Coro::current != $Coro::main) {
2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3910	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2855	unless ++$bug_warning > 10;	3911	unless ++$bug_warning > 10;
2856	return;	3912	return;
2857	}	3913	}
2858		3914
2859	$NOW = $tick_start = Event::time;
2860
2861	cf::server_tick; # one server iteration	3915	cf::server_tick; # one server iteration
2862		3916
2863	0 && sync_job {#d#	3917	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2864	for(1..10) {	3918	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2865	my $t = Event::time;	3919	Coro::async_pool {
2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"	3920	$Coro::current->{desc} = "runtime saver";
2867	or die;	3921	write_runtime_sync
2868		3922	or warn "ERROR: unable to write runtime file: $!";
2869	$map->width (50);
2870	$map->height (50);
2871	$map->alloc;
2872	$map->_load_objects ("/tmp/x.map", 1);
2873	my $t = Event::time - $t;
2874
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	};	3923	};
		3924	}
2885		3925
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) {	3926	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2901	$sig->send;	3927	$sig->send;
2902	}	3928	}
2903	while (my $sig = shift @WAIT_FOR_TICK) {	3929	while (my $sig = shift @WAIT_FOR_TICK) {
2904	$sig->send;	3930	$sig->send;
2905	}	3931	}
2906		3932
2907	$NOW = Event::time;	3933	$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;	3934	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2917		3935
2918	_post_tick;	3936	if (0) {
2919		3937	if ($NEXT_TICK) {
2920		3938	my $jitter = $TICK_START - $NEXT_TICK;
		3939	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3940	warn "jitter $JITTER\n";#d#
		3941	}
2921	},	3942	}
2922	);	3943	}
2923		3944
2924	{	3945	{
2925	BDB::max_poll_time $TICK * 0.1;	3946	# configure BDB
2926	$BDB_POLL_WATCHER = Event->io (	3947
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;	3948	BDB::min_parallel 8;
2935		3949	BDB::max_poll_reqs $TICK * 0.1;
2936	BDB::set_sync_prepare {	3950	$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		3951
2951	unless ($DB_ENV) {	3952	unless ($DB_ENV) {
2952	$DB_ENV = BDB::db_env_create;	3953	$DB_ENV = BDB::db_env_create;
		3954	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3955	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3956	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3957	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3958	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2953		3959
2954	cf::sync_job {	3960	cf::sync_job {
2955	eval {	3961	eval {
2956	BDB::db_env_open	3962	BDB::db_env_open
2957	$DB_ENV,	3963	$DB_ENV,
…		…
2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3965	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3966	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2961	0666;	3967	0666;
2962		3968
2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3969	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	};	3970	};
2968		3971
2969	cf::cleanup "db_env_open(db): $@" if $@;	3972	cf::cleanup "db_env_open(db): $@" if $@;
2970	};	3973	};
2971	}	3974	}
		3975
		3976	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3977	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3978	};
		3979	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3980	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3981	};
		3982	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3983	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3984	};
2972	}	3985	}
2973		3986
2974	{	3987	{
		3988	# configure IO::AIO
		3989
2975	IO::AIO::min_parallel 8;	3990	IO::AIO::min_parallel 8;
2976
2977	undef $Coro::AIO::WATCHER;
2978	IO::AIO::max_poll_time $TICK * 0.1;	3991	IO::AIO::max_poll_time $TICK * 0.1;
2979	$AIO_POLL_WATCHER = Event->io (	3992	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	}	3993	}
2988		3994
2989	my $_log_backtrace;	3995	my $_log_backtrace;
2990		3996
2991	sub _log_backtrace {	3997	sub _log_backtrace {
…		…
2994	$msg =~ s/\n//;	4000	$msg =~ s/\n//;
2995		4001
2996	# limit the # of concurrent backtraces	4002	# limit the # of concurrent backtraces
2997	if ($_log_backtrace < 2) {	4003	if ($_log_backtrace < 2) {
2998	++$_log_backtrace;	4004	++$_log_backtrace;
		4005	my $perl_bt = Carp::longmess $msg;
2999	async {	4006	async {
		4007	$Coro::current->{desc} = "abt $msg";
		4008
3000	my @bt = fork_call {	4009	my @bt = fork_call {
3001	@addr = map { sprintf "%x", $_ } @addr;	4010	@addr = map { sprintf "%x", $_ } @addr;
3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4011	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4012	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3004	or die "addr2line: $!";	4013	or die "addr2line: $!";
…		…
3012	}	4021	}
3013		4022
3014	@funcs	4023	@funcs
3015	};	4024	};
3016		4025
3017	LOG llevInfo, "[ABT] $msg\n";	4026	LOG llevInfo, "[ABT] $perl_bt\n";
		4027	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3018	LOG llevInfo, "[ABT] $_\n" for @bt;	4028	LOG llevInfo, "[ABT] $_\n" for @bt;
3019	--$_log_backtrace;	4029	--$_log_backtrace;
3020	};	4030	};
3021	} else {	4031	} else {
3022	LOG llevInfo, "[ABT] $msg\n";	4032	LOG llevInfo, "[ABT] $msg\n";
3023	LOG llevInfo, "[ABT] [suppressed]\n";	4033	LOG llevInfo, "[ABT] [suppressed]\n";
3024	}	4034	}
3025	}	4035	}
3026		4036
3027	# load additional modules	4037	# load additional modules
3028	use cf::pod;	4038	require "cf/$_.pm" for @EXTRA_MODULES;
		4039	cf::_connect_to_perl_2;
3029		4040
3030	END { cf::emergency_save }	4041	END { cf::emergency_save }
3031		4042
3032	1	4043	1
3033		4044

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