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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.269 by root, Tue May 22 21:35:26 2007 UTC vs.
Revision 1.489 by root, Fri Oct 23 03:08:35 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify 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 ();
14		37
		38	use Guard ();
15	use Coro 3.61 ();	39	use Coro ();
16	use Coro::State;	40	use Coro::State;
17	use Coro::Handle;	41	use Coro::Handle;
		42	use Coro::EV;
18	use Coro::Event;	43	use Coro::AnyEvent;
19	use Coro::Timer;	44	use Coro::Timer;
20	use Coro::Signal;	45	use Coro::Signal;
21	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
22	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
23	use Coro::Storable;	51	use Coro::Storable;
		52	use Coro::Util ();
24		53
		54	use JSON::XS 2.01 ();
25	use BDB ();	55	use BDB ();
26	use Data::Dumper;	56	use Data::Dumper;
27	use Digest::MD5;	57	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	warn "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	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	567	=cut
401	utime undef, undef, $fh;	568
		569	sub fork_call(&@) {
		570	my ($cb, @args) = @_;
		571
		572	# we seemingly have to make a local copy of the whole thing,
		573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
		575
		576	my @res = Coro::Util::fork_eval {
		577	reset_signals;
		578	&$cb
		579	}, @args;
		580
		581	wantarray ? @res : $res[-1]
		582	}
		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		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 $!;
402	}	638	};
		639	cf::cleanup "db_open(db): $@" if $@;
403		640
404	my $guard = cf::lock_acquire "write_runtime";	641	$db
		642	}
405		643
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	644	our $DB;
407	or return;
408		645
409	my $value = $cf::RUNTIME + 90 + 10;	646	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	647	cf::sync_job {
411	# 60 allows for the watchdog to kill the server.	648	$DB ||= db_table "db";
		649	};
		650	}
412		651
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	652	sub db_get($$) {
414	and return;	653	my $key = "$_[0]/$_[1]";
415		654
416	# always fsync - this file is important	655	cf::sync_job {
417	aio_fsync $fh	656	BDB::db_get $DB, undef, $key, my $data;
418	and return;
419		657
420	# touch it again to show we are up-to-date	658	$! ? ()
421	utime undef, undef, $fh;	659	: $data
422
423	close $fh
424	or return;
425
426	aio_rename "$runtime~", $runtime
427	and return;
428
429	warn "runtime file written.\n";#d#
430
431	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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"
432	}	736	}
433		737
434	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
435		739
436	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.
…		…
448		752
449	#############################################################################	753	#############################################################################
450		754
451	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
452		756
453	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
454	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")
455	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
456		760
457	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>
458	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
459	crossfire+).	763	Deliantra).
460		764
461	=over 4	765	=over 4
462		766
463	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
464		768
…		…
508	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
509		813
510	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
512		816
513	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
514	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.
515		819
516	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
517		821
518	=over 4	822	=over 4
…		…
666	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
667	}	971	}
668		972
669	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
670	} else {	974	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	976	}
673		977
674	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
675	}	979	}
676		980
…		…
716	";	1020	";
717	die if $@;	1021	die if $@;
718	}	1022	}
719		1023
720	our $override;	1024	our $override;
721	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?
722		1026
723	sub override {	1027	sub override {
724	$override = 1;	1028	$override = 1;
725	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
726	}	1030	}
727		1031
728	sub do_invoke {	1032	sub do_invoke {
729	my $event = shift;	1033	my $event = shift;
730	my $callbacks = shift;	1034	my $callbacks = shift;
731		1035
732	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
733		1037
734	local $override;	1038	local $override;
735		1039
736	for (@$callbacks) {	1040	for (@$callbacks) {
737	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
746	}	1050	}
747		1051
748	0	1052	0
749	}	1053	}
750		1054
751	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
752		1056
753	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
754		1058
755	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
756		1060
757	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
758	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
759	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
760		1064
761	=back	1065	=back
762		1066
763	=cut	1067	=cut
764		1068
765	#############################################################################	1069	#############################################################################
766	# 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, $ob2
		1112	}
767		1113
768	sub reattach {	1114	sub reattach {
769	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
770	my ($obj) = @_;	1116	my ($obj) = @_;
771		1117
		1118	# no longer needed after getting rid of delete_package?
772	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
773		1120
774	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
775		1122
776	@$registry = ();	1123	@$registry = ();
777		1124
…		…
792	cf::attachable->attach (	1139	cf::attachable->attach (
793	prio => -1000000,	1140	prio => -1000000,
794	on_instantiate => sub {	1141	on_instantiate => sub {
795	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
796		1143
797	$data = from_json $data;	1144	$data = decode_json $data;
798		1145
799	for (@$data) {	1146	for (@$data) {
800	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
801		1148
802	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
818	sub object_freezer_save {	1165	sub object_freezer_save {
819	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
820		1167
821	sync_job {	1168	sync_job {
822	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
823	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
824	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
825		1173
826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
827	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
829	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	}
830	close $fh;	1181	aio_close $fh;
831		1182
832	if (@$objs) {	1183	if (@$objs) {
833	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) {
834	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
835	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
836	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
837	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	}
838	close $fh;	1192	aio_close $fh;
839	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
840	}	1194	}
841	} else {	1195	} else {
842	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
843	}	1197	}
844		1198
845	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
846	} else {	1203	} else {
847	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
848	}	1205	}
849	} else {	1206	} else {
850	aio_unlink $filename;	1207	aio_unlink $filename;
851	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
852	}	1209	}
853	}	1210	};
854	}	1211	}
855		1212
856	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
857	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
858		1215
…		…
870	or return;	1227	or return;
871		1228
872	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
873	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
874	or return;	1231	or return;
		1232
875	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
876	}	1235	}
877		1236
		1237	utf8::decode (my $decname = $filename);
878	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
879	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
880	return ($data, $av);	1241	($data, $av)
881	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
882		1249
883	#############################################################################	1250	#############################################################################
884	# command handling &c	1251	# command handling &c
885		1252
886	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1267	}
901		1268
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1270
904	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.
905		1276
906	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
907	called.	1278	called.
908		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
909	=cut	1291	=cut
910		1292
911	sub register_extcmd {	1293	sub register_extcmd {
912	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
913		1295
914	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
915	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
916		1306
917	cf::player->attach (	1307	cf::player->attach (
918	on_command => sub {	1308	on_command => sub {
919	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
920		1310
…		…
928	cf::override;	1318	cf::override;
929	},	1319	},
930	on_extcmd => sub {	1320	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
932		1322
933	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1324
935	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
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
941	} else {	1340	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1342	}
944		1343
945	cf::override;	1344	cf::override;
946	},	1345	},
947	);	1346	);
948		1347
		1348	# "readahead" all extensions
949	sub load_extension {	1349	sub cache_extensions {
950	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
951		1351
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
953	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
954	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}	1355	}
977	die $@;
978	}	1356	};
979		1357
980	push @EXTS, $pkg;	1358	$grp
981	}	1359	}
982		1360
983	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
984	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1366	next unless -r $path;
986	eval {	1367
987	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	$progress = 1;
988	1	1424	}
989	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
990	}	1430	};
991	}	1431	}
992		1432
993	#############################################################################	1433	#############################################################################
994		1434
		1435	=back
		1436
995	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
996		1438
997	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
998		1440
999	=cut	1441	=cut
1000		1442
1001	package cf::player;	1443	package cf::player;
1002		1444
1003	use Coro::AIO;	1445	use Coro::AIO;
1004		1446
1005	=head3 cf::player	1447	=head3 cf::player
1006		1448
1007	=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	}
1008		1464
1009	=item cf::player::find $login	1465	=item cf::player::find $login
1010		1466
1011	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
1012		1468
…		…
1031		1487
1032	sub exists($) {	1488	sub exists($) {
1033	my ($login) = @_;	1489	my ($login) = @_;
1034		1490
1035	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
1036	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
1037	}	1493	}
1038		1494
1039	sub find($) {	1495	sub find($) {
1040	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
1041	my $login = $_[0];	1497	my $login = $_[0];
…		…
1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1051	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
1052		1508
1053	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1054	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;
1055	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1056	}	1518	}
1057	}	1519	}
1058	}	1520	}
1059		1521
…		…
1068	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1069		1531
1070	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1071	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1072		1534
		1535	cf::get_slot 0.01;
		1536
1073	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1074	Coro::cede;	1538	cf::cede_to_tick;
1075	}	1539	}
1076		1540
1077	sub new($) {	1541	sub new($) {
1078	my ($login) = @_;	1542	my ($login) = @_;
1079		1543
…		…
1085	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1086		1550
1087	$self	1551	$self
1088	}	1552	}
1089		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
1090	=item $pl->quit_character	1564	=item $pl->quit_character
1091		1565
1092	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1093	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1094		1568
…		…
1098	my ($pl) = @_;	1572	my ($pl) = @_;
1099		1573
1100	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1101		1575
1102	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1103	$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
1104		1578
1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1106	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1108	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1109		1585
1110	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1111	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1147	or return [];	1623	or return [];
1148		1624
1149	my @logins;	1625	my @logins;
1150		1626
1151	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") {
1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1153	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1154	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1155		1637
1156	utf8::decode $login;	1638	utf8::decode $login;
1157	push @logins, $login;	1639	push @logins, $login;
1158	}	1640	}
1159		1641
…		…
1186	}	1668	}
1187		1669
1188	\@paths	1670	\@paths
1189	}	1671	}
1190		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1191	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1192		1678
1193	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1194		1680
1195	=cut	1681	=cut
1196		1682
1197	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1198	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1199		1685
1200	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1201
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1687	}
1204		1688
1205	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1206		1690
1207	Sends an ext event to the client.	1691	Sends an ext event to the client.
1208		1692
1209	=cut	1693	=cut
1210		1694
1211	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1212	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1213		1697
1214	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1215	}	1699	}
1216		1700
1217	=head3 cf::region	1701	=head3 cf::region
1218		1702
1219	=over 4	1703	=over 4
…		…
1222		1706
1223	package cf::region;	1707	package cf::region;
1224		1708
1225	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1226		1710
1227	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1228		1712
1229	=cut	1713	=cut
1230		1714
1231	sub find_by_path($) {	1715	sub find_by_path($) {
1232	my ($path) = @_;	1716	my ($path) = @_;
1233		1717
1234	my ($match, $specificity);	1718	my ($match, $specificity);
1235		1719
1236	for my $region (list) {	1720	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1240	}	1724	}
1241	}	1725	}
1242		1726
…		…
1263	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1265		1749
1266	sub generate_random_map {	1750	sub generate_random_map {
1267	my ($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
1268	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1269	$self->_create_random_map (	1756	$self->_create_random_map (
1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1306	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1307		1794
1308	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1309	local $self->{path};	1796	local $self->{path};
1310	local $self->{load_path};	1797	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1798
1314	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1315	}	1800	}
1316		1801
1317	sub normalise {	1802	sub normalise {
…		…
1364	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1365	return $self;	1850	return $self;
1366	}	1851	}
1367	}	1852	}
1368		1853
1369	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1370	()	1855	()
1371	}	1856	}
1372		1857
1373	sub init {	1858	sub init {
1374	my ($self) = @_;	1859	my ($self) = @_;
…		…
1396		1881
1397	# the temporary/swap location	1882	# the temporary/swap location
1398	sub save_path {	1883	sub save_path {
1399	my ($self) = @_;	1884	my ($self) = @_;
1400		1885
1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1402	"$TMPDIR/$path.map"	1887	"$TMPDIR/$path.map"
1403	}	1888	}
1404		1889
1405	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1406	sub uniq_path {	1891	sub uniq_path {
1407	my ($self) = @_;	1892	my ($self) = @_;
1408		1893
1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1410	"$UNIQUEDIR/$path"	1895	"$UNIQUEDIR/$path"
1411	}	1896	}
1412		1897
1413	# and all this just because we cannot iterate over	1898	sub decay_objects {
1414	# all maps in C++...
1415	sub change_all_map_light {
1416	my ($change) = @_;	1899	my ($self) = @_;
1417		1900
1418	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1419	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1420	}	1904	}
1421		1905
1422	sub unlink_save {	1906	sub unlink_save {
1423	my ($self) = @_;	1907	my ($self) = @_;
1424		1908
…		…
1429		1913
1430	sub load_header_from($) {	1914	sub load_header_from($) {
1431	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1432		1916
1433	utf8::encode $path;	1917	utf8::encode $path;
1434	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1435	# or return;
1436
1437	$self->_load_header ($path)
1438	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;
1439		1926
1440	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1441		1928
1442	1	1929	1
1443	}	1930	}
…		…
1482	$self->load_header_orig	1969	$self->load_header_orig
1483	or return;	1970	or return;
1484	$self->prepare_orig;	1971	$self->prepare_orig;
1485	}	1972	}
1486		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1487	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	1978	unless $self->default_region;
1489		1979
1490	1	1980	1
1491	}	1981	}
…		…
1494	sub find {	1984	sub find {
1495	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1496		1986
1497	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1498		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1499	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1500		1991
1501	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1502	my $guard = cf::lock_acquire "map_find:$path";
1503	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1504	or return;	1994	or return;
1505		1995
1506	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1507		1997
1508	$map->load_header	1998	$map->load_header
1509	or return;	1999	or return;
1510		2000
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1514	$map->reset;	2006	$map->reset;
1515	undef $guard;
1516	return find $path;	2007	return find $path;
1517	}	2008	}
1518		2009
1519	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1520	}	2011	}
…		…
1529	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1530		2021
1531	my $path = $self->{path};	2022	my $path = $self->{path};
1532		2023
1533	{	2024	{
1534	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1535		2026
		2027	return unless $self->valid;
1536	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1537		2029
1538	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1539		2031
1540	$self->alloc;	2032	$self->alloc;
1541		2033
1542	$self->pre_load;	2034	$self->pre_load;
1543	Coro::cede;	2035	cf::cede_to_tick;
1544		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
1545	$self->_load_objects ($self->{load_path}, 1)	2039	$self->_load_objects ($f)
1546	or return;	2040	or return;
1547		2041
1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1549	if delete $self->{load_original};	2043	if delete $self->{load_original};
1550		2044
1551	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1552	utf8::encode $uniq;	2046	utf8::encode $uniq;
1553	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1554	$self->clear_unique_items;	2049	$self->clear_unique_items;
1555	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1556	}	2053	}
1557	}	2054	}
1558		2055
1559	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1560	# now do the right thing for maps	2059	# now do the right thing for maps
1561	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1562	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1563	unless $self->difficulty;	2062	unless $self->difficulty;
1564	Coro::cede;	2063	cf::cede_to_tick;
1565		2064
1566	unless ($self->{deny_activate}) {	2065	unless ($self->{deny_activate}) {
1567	$self->decay_objects;	2066	$self->decay_objects;
1568	$self->fix_auto_apply;	2067	$self->fix_auto_apply;
1569	$self->update_buttons;	2068	$self->update_buttons;
1570	Coro::cede;	2069	cf::cede_to_tick;
1571	$self->set_darkness_map;
1572	Coro::cede;
1573	$self->activate;	2070	$self->activate;
1574	}	2071	}
1575		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
1576	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_ACTIVE);
1577	}	2077	}
1578		2078
1579	$self->post_load;	2079	$self->post_load;
1580	}	2080	}
1581		2081
…		…
1583	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1584		2084
1585	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	2086	if $self->per_player;
1587		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1588	$self	2091	$self
1589	}	2092	}
1590		2093
1591	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	2095	sub load_neighbours {
1593	my ($map) = @_;	2096	my ($map) = @_;
1594		2097
1595	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1596		2099
1597	for (0 .. 3) {	2100	for (0 .. 3) {
1598	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1599	or next;	2102	or next;
1600	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1601	or next;	2104	or next;
1602	$neigh->load;	2105	$neigh->load;
1603		2106
		2107	push @neigh,
1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1606	}	2110	}
1607		2111
1608	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1609	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1610	or next;	2115	or next;
1611	$neigh->load;	2116	$neigh->load;
1612	}	2117	}
1613	}	2118	}
1614		2119
…		…
1619	}	2124	}
1620		2125
1621	sub do_load_sync {	2126	sub do_load_sync {
1622	my ($map) = @_;	2127	my ($map) = @_;
1623		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1624	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1625	}	2133	}
1626		2134
1627	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1628	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1629		2137
1630	sub find_async {	2138	sub find_async {
1631	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1632		2140
1633	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1634		2142
1635	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1637	}	2145	}
1638		2146
1639	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1640	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1641	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1642	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1643	my $map = find $path	2154	if (my $map = find $k) {
1644	or next;
1645	$map->load;	2155	$map->load if $v;
		2156	}
1646		2157
1647	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1648	}	2159	}
1649	}	2160	}
1650	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1651	};	2162	};
1652	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1655	}	2166	}
1656		2167
1657	sub save {	2168	sub save {
1658	my ($self) = @_;	2169	my ($self) = @_;
1659		2170
1660	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1661		2172
1662	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1663		2174
1664	return unless $self->dirty;	2175	return unless $self->dirty;
1665		2176
…		…
1671	return if $self->{deny_save};	2182	return if $self->{deny_save};
1672		2183
1673	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1674		2185
1675	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1676	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1677	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1678		2192
1679	if ($uniq) {	2193	if ($uniq) {
1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1682	} else {	2196	} else {
…		…
1688	my ($self) = @_;	2202	my ($self) = @_;
1689		2203
1690	# save first because save cedes	2204	# save first because save cedes
1691	$self->save;	2205	$self->save;
1692		2206
1693	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1694		2208
1695	return if $self->players;	2209	return if $self->players;
1696	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1697	return if $self->{deny_save};	2211	return if $self->{deny_save};
1698		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1699	$self->clear;	2217	$self->clear;
1700	$self->in_memory (cf::MAP_SWAPPED);
1701	}	2218	}
1702		2219
1703	sub reset_at {	2220	sub reset_at {
1704	my ($self) = @_;	2221	my ($self) = @_;
1705		2222
1706	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1709		2225
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1712		2228
…		…
1723	my ($self) = @_;	2239	my ($self) = @_;
1724		2240
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		2242
1727	return if $self->players;	2243	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		2244
1730	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1731		2246
1732	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1733		2248
1734	# need to save uniques path	2249	# need to save uniques path
1735	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1739	if $uniq;	2254	if $uniq;
1740	}	2255	}
1741		2256
1742	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1743		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1744	$self->clear;	2261	$self->clear;
1745
1746	$_->clear_links_to ($self) for values %cf::MAP;
1747		2262
1748	$self->unlink_save;	2263	$self->unlink_save;
1749	$self->destroy;	2264	$self->destroy;
1750	}	2265	}
1751		2266
1752	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1753		2268
1754	sub nuke {	2269	sub nuke {
1755	my ($self) = @_;	2270	my ($self) = @_;
1756		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1757	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1758		2276
1759	$self->unlink_save;	2277	$self->unlink_save;
1760		2278
1761	bless $self, "cf::map";	2279	bless $self, "cf::map";
1762	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1763	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1764	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1766		2284
1767	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1768		2287
1769	$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	]
1770	}	2325	}
1771		2326
1772	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1773		2328
1774	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2330	instantiated unique items. May block.
1776		2331
1777	=cut	2332	=cut
1778		2333
1779	sub unique_maps() {	2334	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2335	[
1781	or return;	2336	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2337	utf8::decode $_;
1787	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1788	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1789		2340	? ()
1790	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2343	]
1792
1793	\@paths
1794	}	2344	}
1795		2345
1796	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). May block.
		2350
		2351	=cut
		2352
		2353	sub static_maps() {
		2354	my @dirs = "";
		2355	my @maps;
		2356
		2357	while (@dirs) {
		2358	my $dir = shift @dirs;
		2359
		2360	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2361	or return;
		2362
		2363	for (@$files) {
		2364	s/\.map$// or next;
		2365	utf8::decode $_;
		2366	push @maps, "$dir/$_";
		2367	}
		2368
		2369	push @dirs, map "$dir/$_", @$dirs;
		2370	}
		2371
		2372	\@maps
		2373	}
1797		2374
1798	=back	2375	=back
1799		2376
1800	=head3 cf::object	2377	=head3 cf::object
1801		2378
…		…
1805		2382
1806	=over 4	2383	=over 4
1807		2384
1808	=item $ob->inv_recursive	2385	=item $ob->inv_recursive
1809		2386
1810	Returns the inventory of the object _and_ their inventories, recursively.	2387	Returns the inventory of the object I<and> their inventories, recursively,
		2388	but I<not> the object itself.
1811		2389
1812	=cut	2390	=cut
1813		2391
1814	sub inv_recursive_;	2392	sub inv_recursive_;
1815	sub inv_recursive_ {	2393	sub inv_recursive_ {
…		…
1818		2396
1819	sub inv_recursive {	2397	sub inv_recursive {
1820	inv_recursive_ inv $_[0]	2398	inv_recursive_ inv $_[0]
1821	}	2399	}
1822		2400
		2401	=item $ref = $ob->ref
		2402
		2403	Creates and returns a persistent reference to an object that can be stored as a string.
		2404
		2405	=item $ob = cf::object::deref ($refstring)
		2406
		2407	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2408	even if the object actually exists. May block.
		2409
		2410	=cut
		2411
		2412	sub deref {
		2413	my ($ref) = @_;
		2414
		2415	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2416	my ($uuid, $name) = ($1, $2);
		2417	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2418	or return;
		2419	$pl->ob->uuid eq $uuid
		2420	or return;
		2421
		2422	$pl->ob
		2423	} else {
		2424	warn "$ref: cannot resolve object reference\n";
		2425	undef
		2426	}
		2427	}
		2428
1823	package cf;	2429	package cf;
1824		2430
1825	=back	2431	=back
1826		2432
1827	=head3 cf::object::player	2433	=head3 cf::object::player
…		…
1833	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1834	can be C<undef>. Does the right thing when the player is currently in a	2440	can be C<undef>. Does the right thing when the player is currently in a
1835	dialogue with the given NPC character.	2441	dialogue with the given NPC character.
1836		2442
1837	=cut	2443	=cut
		2444
		2445	our $SAY_CHANNEL = {
		2446	id => "say",
		2447	title => "Map",
		2448	reply => "say ",
		2449	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2450	};
		2451
		2452	our $CHAT_CHANNEL = {
		2453	id => "chat",
		2454	title => "Chat",
		2455	reply => "chat ",
		2456	tooltip => "Player chat and shouts, global to the server.",
		2457	};
1838		2458
1839	# rough implementation of a future "reply" method that works	2459	# rough implementation of a future "reply" method that works
1840	# with dialog boxes.	2460	# with dialog boxes.
1841	#TODO: the first argument must go, split into a $npc->reply_to ( method	2461	#TODO: the first argument must go, split into a $npc->reply_to ( method
1842	sub cf::object::player::reply($$$;$) {	2462	sub cf::object::player::reply($$$;$) {
…		…
1844		2464
1845	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2465	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1846		2466
1847	if ($self->{record_replies}) {	2467	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2468	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2469
1849	} else {	2470	} else {
		2471	my $pl = $self->contr;
		2472
		2473	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2474	my $dialog = $pl->{npc_dialog};
		2475	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2476
		2477	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2478	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2479	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2480	}
1852	}	2481	}
		2482	}
		2483
		2484	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2485
		2486	=cut
		2487
		2488	sub cf::object::send_msg {
		2489	my $pl = shift->contr
		2490	or return;
		2491	$pl->send_msg (@_);
1853	}	2492	}
1854		2493
1855	=item $player_object->may ("access")	2494	=item $player_object->may ("access")
1856		2495
1857	Returns wether the given player is authorized to access resource "access"	2496	Returns wether the given player is authorized to access resource "access"
…		…
1870		2509
1871	=item $player_object->enter_link	2510	=item $player_object->enter_link
1872		2511
1873	Freezes the player and moves him/her to a special map (C<{link}>).	2512	Freezes the player and moves him/her to a special map (C<{link}>).
1874		2513
1875	The player should be reasonably safe there for short amounts of time. You	2514	The player should be reasonably safe there for short amounts of time (e.g.
1876	I<MUST> call C<leave_link> as soon as possible, though.	2515	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2516	though, as the palyer cannot control the character while it is on the link
		2517	map.
1877		2518
1878	Will never block.	2519	Will never block.
1879		2520
1880	=item $player_object->leave_link ($map, $x, $y)	2521	=item $player_object->leave_link ($map, $x, $y)
1881		2522
…		…
1904	$self->deactivate_recursive;	2545	$self->deactivate_recursive;
1905		2546
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2547	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2548
1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2549	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2550	if $self->map && $self->map->{path} ne "{link}";
1910		2551
1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2552	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1912	}	2553	}
1913		2554
1914	sub cf::object::player::leave_link {	2555	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2556	my ($self, $map, $x, $y) = @_;
		2557
		2558	return unless $self->contr->active;
1916		2559
1917	my $link_pos = delete $self->{_link_pos};	2560	my $link_pos = delete $self->{_link_pos};
1918		2561
1919	unless ($map) {	2562	unless ($map) {
1920	# restore original map position	2563	# restore original map position
…		…
1934	# use -1 or undef as default coordinates, not 0, 0	2577	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2578	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2579	if $x <=0 && $y <= 0;
1937		2580
1938	$map->load;	2581	$map->load;
1939	$map->load_diag;	2582	$map->load_neighbours;
1940		2583
1941	return unless $self->contr->active;	2584	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2585
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2586	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2587	$self->enter_map ($map, $x, $y);
1946	}
1947		2588
1948	cf::player->attach (	2589	# only activate afterwards, to support waiting in hooks
1949	on_logout => sub {	2590	$self->activate_recursive;
1950	my ($pl) = @_;	2591	}
1951		2592
1952	# abort map switching before logout
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},
1959	on_login => sub {
1960	my ($pl) = @_;
1961
1962	# try to abort aborted map switching on player login :)
1963	# should happen only on crashes
1964	if ($pl->ob->{_link_pos}) {
1965	$pl->ob->enter_link;
1966	(async {
1967	$pl->ob->reply (undef,
1968	"There was an internal problem at your last logout, "
1969	. "the server will try to bring you to your intended destination in a second.",
1970	cf::NDI_RED);
1971	# we need this sleep as the login has a concurrent enter_exit running
1972	# and this sleep increases chances of the player not ending up in scorn
1973	Coro::Timer::sleep 1;
1974	$pl->ob->leave_link;
1975	})->prio (2);
1976	}
1977	},
1978	);
1979
1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2593	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1981		2594
1982	Moves the player to the given map-path and coordinates by first freezing	2595	Moves the player to the given map-path and coordinates by first freezing
1983	her, loading and preparing them map, calling the provided $check callback	2596	her, loading and preparing them map, calling the provided $check callback
1984	that has to return the map if sucecssful, and then unfreezes the player on	2597	that has to return the map if sucecssful, and then unfreezes the player on
1985	the new (success) or old (failed) map position.	2598	the new (success) or old (failed) map position. In either case, $done will
		2599	be called at the end of this process.
1986		2600
		2601	Note that $check will be called with a potentially non-loaded map, so if
		2602	it needs a loaded map it has to call C<< ->load >>.
		2603
1987	=cut	2604	=cut
		2605
		2606	our $GOTOGEN;
1988		2607
1989	sub cf::object::player::goto {	2608	sub cf::object::player::goto {
1990	my ($self, $path, $x, $y, $check) = @_;	2609	my ($self, $path, $x, $y, $check, $done) = @_;
		2610
		2611	# do generation counting so two concurrent goto's will be executed in-order
		2612	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1991		2613
1992	$self->enter_link;	2614	$self->enter_link;
1993		2615
1994	(async {	2616	(async {
		2617	$Coro::current->{desc} = "player::goto $path $x $y";
		2618
		2619	# *tag paths override both path and x|y
		2620	if ($path =~ /^\*(.*)$/) {
		2621	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2622	my $ob = $obs[rand @obs];
		2623
		2624	# see if we actually can go there
		2625	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2626	$ob = $obs[rand @obs];
		2627	} else {
		2628	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2629	}
		2630	# else put us there anyways for now #d#
		2631
		2632	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2633	} else {
		2634	($path, $x, $y) = (undef, undef, undef);
		2635	}
		2636	}
		2637
1995	my $map = eval {	2638	my $map = eval {
1996	my $map = cf::map::find $path;	2639	my $map = defined $path ? cf::map::find $path : undef;
1997		2640
1998	if ($map) {	2641	if ($map) {
1999	$map = $map->customise_for ($self);	2642	$map = $map->customise_for ($self);
2000	$map = $check->($map) if $check && $map;	2643	$map = $check->($map) if $check && $map;
2001	} else {	2644	} else {
2002	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2645	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2003	}	2646	}
2004		2647
2005	$map	2648	$map
2006	};	2649	};
2007		2650
2008	if ($@) {	2651	if ($@) {
2009	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);	2652	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2010	LOG llevError | logBacktrace, Carp::longmess $@;	2653	LOG llevError | logBacktrace, Carp::longmess $@;
2011	}	2654	}
2012		2655
		2656	if ($gen == $self->{_goto_generation}) {
		2657	delete $self->{_goto_generation};
2013	$self->leave_link ($map, $x, $y);	2658	$self->leave_link ($map, $x, $y);
		2659	}
		2660
		2661	$done->() if $done;
2014	})->prio (1);	2662	})->prio (1);
2015	}	2663	}
2016		2664
2017	=item $player_object->enter_exit ($exit_object)	2665	=item $player_object->enter_exit ($exit_object)
2018		2666
…		…
2038	}	2686	}
2039		2687
2040	sub prepare_random_map {	2688	sub prepare_random_map {
2041	my ($exit) = @_;	2689	my ($exit) = @_;
2042		2690
2043	my $guard = cf::lock_acquire "exit_prepare:$exit";
2044
2045	# all this does is basically replace the /! path by	2691	# all this does is basically replace the /! path by
2046	# a new random map path (?random/...) with a seed	2692	# a new random map path (?random/...) with a seed
2047	# that depends on the exit object	2693	# that depends on the exit object
2048		2694
2049	my $rmp = parse_random_map_params $exit->msg;	2695	my $rmp = parse_random_map_params $exit->msg;
…		…
2051	if ($exit->map) {	2697	if ($exit->map) {
2052	$rmp->{region} = $exit->region->name;	2698	$rmp->{region} = $exit->region->name;
2053	$rmp->{origin_map} = $exit->map->path;	2699	$rmp->{origin_map} = $exit->map->path;
2054	$rmp->{origin_x} = $exit->x;	2700	$rmp->{origin_x} = $exit->x;
2055	$rmp->{origin_y} = $exit->y;	2701	$rmp->{origin_y} = $exit->y;
		2702
		2703	$exit->map->touch;
2056	}	2704	}
2057		2705
2058	$rmp->{random_seed} ||= $exit->random_seed;	2706	$rmp->{random_seed} ||= $exit->random_seed;
2059		2707
2060	my $data = cf::to_json $rmp;	2708	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2061	my $md5 = Digest::MD5::md5_hex $data;	2709	my $md5 = Digest::MD5::md5_hex $data;
2062	my $meta = "$RANDOMDIR/$md5.meta";	2710	my $meta = "$RANDOMDIR/$md5.meta";
2063		2711
2064	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2712	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2065	aio_write $fh, 0, (length $data), $data, 0;	2713	aio_write $fh, 0, (length $data), $data, 0;
2066	undef $fh;	2714	undef $fh;
2067	aio_rename "$meta~", $meta;	2715	aio_rename "$meta~", $meta;
2068		2716
		2717	my $slaying = "?random/$md5";
		2718
		2719	if ($exit->valid) {
2069	$exit->slaying ("?random/$md5");	2720	$exit->slaying ("?random/$md5");
2070	$exit->msg (undef);	2721	$exit->msg (undef);
		2722	}
2071	}	2723	}
2072	}	2724	}
2073		2725
2074	sub cf::object::player::enter_exit {	2726	sub cf::object::player::enter_exit {
2075	my ($self, $exit) = @_;	2727	my ($self, $exit) = @_;
2076		2728
2077	return unless $self->type == cf::PLAYER;	2729	return unless $self->type == cf::PLAYER;
2078		2730
2079	if ($exit->slaying eq "/!") {
2080	#TODO: this should de-fi-ni-te-ly not be a sync-job
2081	# the problem is that $exit might not survive long enough
2082	# so it needs to be done right now, right here
2083	cf::sync_job { prepare_random_map $exit };
2084	}
2085
2086	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2087	my $hp = $exit->stats->hp;
2088	my $sp = $exit->stats->sp;
2089
2090	$self->enter_link;	2731	$self->enter_link;
2091		2732
2092	(async {	2733	(async {
2093	$self->deactivate_recursive; # just to be sure	2734	$Coro::current->{desc} = "enter_exit";
		2735
2094	unless (eval {	2736	unless (eval {
		2737	$self->deactivate_recursive; # just to be sure
		2738
		2739	# random map handling
		2740	{
		2741	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2742
		2743	prepare_random_map $exit
		2744	if $exit->slaying eq "/!";
		2745	}
		2746
		2747	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2748	my $x = $exit->stats->hp;
		2749	my $y = $exit->stats->sp;
		2750
2095	$self->goto ($slaying, $hp, $sp);	2751	$self->goto ($map, $x, $y);
2096		2752
		2753	# if exit is damned, update players death & WoR home-position
		2754	$self->contr->savebed ($map, $x, $y)
		2755	if $exit->flag (cf::FLAG_DAMNED);
		2756
2097	1;	2757	1
2098	}) {	2758	}) {
2099	$self->message ("Something went wrong deep within the crossfire server. "	2759	$self->message ("Something went wrong deep within the deliantra server. "
2100	. "I'll try to bring you back to the map you were before. "	2760	. "I'll try to bring you back to the map you were before. "
2101	. "Please report this to the dungeon master!",	2761	. "Please report this to the dungeon master!",
2102	cf::NDI_UNIQUE | cf::NDI_RED);	2762	cf::NDI_UNIQUE | cf::NDI_RED);
2103		2763
2104	warn "ERROR in enter_exit: $@";	2764	warn "ERROR in enter_exit: $@";
…		…
2123		2783
2124	utf8::encode $text;	2784	utf8::encode $text;
2125	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2785	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2126	}	2786	}
2127		2787
		2788	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2789
		2790	Send a drawinfo or msg packet to the client, formatting the msg for the
		2791	client if neccessary. C<$type> should be a string identifying the type of
		2792	the message, with C<log> being the default. If C<$color> is negative, suppress
		2793	the message unless the client supports the msg packet.
		2794
		2795	=cut
		2796
		2797	# non-persistent channels (usually the info channel)
		2798	our %CHANNEL = (
		2799	"c/motd" => {
		2800	id => "infobox",
		2801	title => "MOTD",
		2802	reply => undef,
		2803	tooltip => "The message of the day",
		2804	},
		2805	"c/identify" => {
		2806	id => "infobox",
		2807	title => "Identify",
		2808	reply => undef,
		2809	tooltip => "Items recently identified",
		2810	},
		2811	"c/examine" => {
		2812	id => "infobox",
		2813	title => "Examine",
		2814	reply => undef,
		2815	tooltip => "Signs and other items you examined",
		2816	},
		2817	"c/shopinfo" => {
		2818	id => "infobox",
		2819	title => "Shop Info",
		2820	reply => undef,
		2821	tooltip => "What your bargaining skill tells you about the shop",
		2822	},
		2823	"c/book" => {
		2824	id => "infobox",
		2825	title => "Book",
		2826	reply => undef,
		2827	tooltip => "The contents of a note or book",
		2828	},
		2829	"c/lookat" => {
		2830	id => "infobox",
		2831	title => "Look",
		2832	reply => undef,
		2833	tooltip => "What you saw there",
		2834	},
		2835	"c/who" => {
		2836	id => "infobox",
		2837	title => "Players",
		2838	reply => undef,
		2839	tooltip => "Shows players who are currently online",
		2840	},
		2841	"c/body" => {
		2842	id => "infobox",
		2843	title => "Body Parts",
		2844	reply => undef,
		2845	tooltip => "Shows which body parts you posess and are available",
		2846	},
		2847	"c/statistics" => {
		2848	id => "infobox",
		2849	title => "Statistics",
		2850	reply => undef,
		2851	tooltip => "Shows your primary statistics",
		2852	},
		2853	"c/skills" => {
		2854	id => "infobox",
		2855	title => "Skills",
		2856	reply => undef,
		2857	tooltip => "Shows your experience per skill and item power",
		2858	},
		2859	"c/shopitems" => {
		2860	id => "infobox",
		2861	title => "Shop Items",
		2862	reply => undef,
		2863	tooltip => "Shows the items currently for sale in this shop",
		2864	},
		2865	"c/resistances" => {
		2866	id => "infobox",
		2867	title => "Resistances",
		2868	reply => undef,
		2869	tooltip => "Shows your resistances",
		2870	},
		2871	"c/pets" => {
		2872	id => "infobox",
		2873	title => "Pets",
		2874	reply => undef,
		2875	tooltip => "Shows information abotu your pets/a specific pet",
		2876	},
		2877	"c/perceiveself" => {
		2878	id => "infobox",
		2879	title => "Perceive Self",
		2880	reply => undef,
		2881	tooltip => "You gained detailed knowledge about yourself",
		2882	},
		2883	"c/uptime" => {
		2884	id => "infobox",
		2885	title => "Uptime",
		2886	reply => undef,
		2887	tooltip => "How long the server has been running since last restart",
		2888	},
		2889	"c/mapinfo" => {
		2890	id => "infobox",
		2891	title => "Map Info",
		2892	reply => undef,
		2893	tooltip => "Information related to the maps",
		2894	},
		2895	"c/party" => {
		2896	id => "party",
		2897	title => "Party",
		2898	reply => "gsay ",
		2899	tooltip => "Messages and chat related to your party",
		2900	},
		2901	"c/death" => {
		2902	id => "death",
		2903	title => "Death",
		2904	reply => undef,
		2905	tooltip => "Reason for and more info about your most recent death",
		2906	},
		2907	"c/say" => $SAY_CHANNEL,
		2908	"c/chat" => $CHAT_CHANNEL,
		2909	);
		2910
		2911	sub cf::client::send_msg {
		2912	my ($self, $channel, $msg, $color, @extra) = @_;
		2913
		2914	$msg = $self->pl->expand_cfpod ($msg)
		2915	unless $color & cf::NDI_VERBATIM;
		2916
		2917	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2918
		2919	# check predefined channels, for the benefit of C
		2920	if ($CHANNEL{$channel}) {
		2921	$channel = $CHANNEL{$channel};
		2922
		2923	$self->ext_msg (channel_info => $channel);
		2924	$channel = $channel->{id};
		2925
		2926	} elsif (ref $channel) {
		2927	# send meta info to client, if not yet sent
		2928	unless (exists $self->{channel}{$channel->{id}}) {
		2929	$self->{channel}{$channel->{id}} = $channel;
		2930	$self->ext_msg (channel_info => $channel);
		2931	}
		2932
		2933	$channel = $channel->{id};
		2934	}
		2935
		2936	return unless @extra || length $msg;
		2937
		2938	# default colour, mask it out
		2939	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2940	if $color & cf::NDI_DEF;
		2941
		2942	my $pkt = "msg "
		2943	. $self->{json_coder}->encode (
		2944	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2945	);
		2946
		2947	# try lzf for large packets
		2948	$pkt = "lzf " . Compress::LZF::compress $pkt
		2949	if 1024 <= length $pkt and $self->{can_lzf};
		2950
		2951	# split very large packets
		2952	if (8192 < length $pkt and $self->{can_lzf}) {
		2953	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2954	$pkt = "frag";
		2955	}
		2956
		2957	$self->send_packet ($pkt);
		2958	}
		2959
2128	=item $client->ext_event ($type, %msg)	2960	=item $client->ext_msg ($type, @msg)
2129		2961
2130	Sends an exti event to the client.	2962	Sends an ext event to the client.
2131		2963
2132	=cut	2964	=cut
2133		2965
2134	sub cf::client::ext_event($$%) {	2966	sub cf::client::ext_msg($$@) {
2135	my ($self, $type, %msg) = @_;	2967	my ($self, $type, @msg) = @_;
2136		2968
		2969	if ($self->extcmd == 2) {
		2970	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2971	} elsif ($self->extcmd == 1) { # TODO: remove
2137	$msg{msgtype} = "event_$type";	2972	push @msg, msgtype => "event_$type";
2138	$self->send_packet ("ext " . cf::to_json \%msg);	2973	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2974	}
		2975	}
		2976
		2977	=item $client->ext_reply ($msgid, @msg)
		2978
		2979	Sends an ext reply to the client.
		2980
		2981	=cut
		2982
		2983	sub cf::client::ext_reply($$@) {
		2984	my ($self, $id, @msg) = @_;
		2985
		2986	if ($self->extcmd == 2) {
		2987	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2988	} elsif ($self->extcmd == 1) {
		2989	#TODO: version 1, remove
		2990	unshift @msg, msgtype => "reply", msgid => $id;
		2991	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
2139	}	2993	}
2140		2994
2141	=item $success = $client->query ($flags, "text", \&cb)	2995	=item $success = $client->query ($flags, "text", \&cb)
2142		2996
2143	Queues a query to the client, calling the given callback with	2997	Queues a query to the client, calling the given callback with
2144	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2998	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2145	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2999	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2146		3000
2147	Queries can fail, so check the return code. Or don't, as queries will become	3001	Queries can fail, so check the return code. Or don't, as queries will
2148	reliable at some point in the future.	3002	become reliable at some point in the future.
2149		3003
2150	=cut	3004	=cut
2151		3005
2152	sub cf::client::query {	3006	sub cf::client::query {
2153	my ($self, $flags, $text, $cb) = @_;	3007	my ($self, $flags, $text, $cb) = @_;
…		…
2161	utf8::encode $text;	3015	utf8::encode $text;
2162	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3016	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2163		3017
2164	$self->send_packet ($self->{query_queue}[0][0])	3018	$self->send_packet ($self->{query_queue}[0][0])
2165	if @{ $self->{query_queue} } == 1;	3019	if @{ $self->{query_queue} } == 1;
		3020
		3021	1
2166	}	3022	}
2167		3023
2168	cf::client->attach (	3024	cf::client->attach (
		3025	on_connect => sub {
		3026	my ($ns) = @_;
		3027
		3028	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3029	},
2169	on_reply => sub {	3030	on_reply => sub {
2170	my ($ns, $msg) = @_;	3031	my ($ns, $msg) = @_;
2171		3032
2172	# this weird shuffling is so that direct followup queries	3033	# this weird shuffling is so that direct followup queries
2173	# get handled first	3034	# get handled first
…		…
2185	} else {	3046	} else {
2186	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2187	}	3048	}
2188	}	3049	}
2189	},	3050	},
		3051	on_exticmd => sub {
		3052	my ($ns, $buf) = @_;
		3053
		3054	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3055
		3056	if (ref $msg) {
		3057	my ($type, $reply, @payload) =
		3058	"ARRAY" eq ref $msg
		3059	? @$msg
		3060	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3061
		3062	my @reply;
		3063
		3064	if (my $cb = $EXTICMD{$type}) {
		3065	@reply = $cb->($ns, @payload);
		3066	}
		3067
		3068	$ns->ext_reply ($reply, @reply)
		3069	if $reply;
		3070
		3071	} else {
		3072	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3073	}
		3074
		3075	cf::override;
		3076	},
2190	);	3077	);
2191		3078
2192	=item $client->async (\&cb)	3079	=item $client->async (\&cb)
2193		3080
2194	Create a new coroutine, running the specified callback. The coroutine will	3081	Create a new coroutine, running the specified callback. The coroutine will
…		…
2235	our $safe = new Safe "safe";	3122	our $safe = new Safe "safe";
2236	our $safe_hole = new Safe::Hole;	3123	our $safe_hole = new Safe::Hole;
2237		3124
2238	$SIG{FPE} = 'IGNORE';	3125	$SIG{FPE} = 'IGNORE';
2239		3126
2240	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3127	$safe->permit_only (Opcode::opset qw(
		3128	:base_core :base_mem :base_orig :base_math
		3129	grepstart grepwhile mapstart mapwhile
		3130	sort time
		3131	));
2241		3132
2242	# here we export the classes and methods available to script code	3133	# here we export the classes and methods available to script code
2243		3134
2244	=pod	3135	=pod
2245		3136
2246	The following functions and methods are available within a safe environment:	3137	The following functions and methods are available within a safe environment:
2247		3138
2248	cf::object contr pay_amount pay_player map	3139	cf::object
		3140	contr pay_amount pay_player map x y force_find force_add destroy
		3141	insert remove name archname title slaying race decrease split
		3142	value
		3143
2249	cf::object::player player	3144	cf::object::player
2250	cf::player peaceful	3145	player
2251	cf::map trigger	3146
		3147	cf::player
		3148	peaceful
		3149
		3150	cf::map
		3151	trigger
2252		3152
2253	=cut	3153	=cut
2254		3154
2255	for (	3155	for (
2256	["cf::object" => qw(contr pay_amount pay_player map)],	3156	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3157	insert remove inv nrof name archname title slaying race
		3158	decrease split destroy change_exp value msg lore send_msg)],
2257	["cf::object::player" => qw(player)],	3159	["cf::object::player" => qw(player)],
2258	["cf::player" => qw(peaceful)],	3160	["cf::player" => qw(peaceful send_msg)],
2259	["cf::map" => qw(trigger)],	3161	["cf::map" => qw(trigger)],
2260	) {	3162	) {
2261	no strict 'refs';	3163	no strict 'refs';
2262	my ($pkg, @funs) = @$_;	3164	my ($pkg, @funs) = @$_;
2263	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3165	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2280	my ($code, %vars) = @_;	3182	my ($code, %vars) = @_;
2281		3183
2282	my $qcode = $code;	3184	my $qcode = $code;
2283	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3185	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2284	$qcode =~ s/\n/\\n/g;	3186	$qcode =~ s/\n/\\n/g;
		3187
		3188	%vars = (_dummy => 0) unless %vars;
2285		3189
2286	local $_;	3190	local $_;
2287	local @safe::cf::_safe_eval_args = values %vars;	3191	local @safe::cf::_safe_eval_args = values %vars;
2288		3192
2289	my $eval =	3193	my $eval =
…		…
2332	=back	3236	=back
2333		3237
2334	=cut	3238	=cut
2335		3239
2336	#############################################################################	3240	#############################################################################
2337
2338	=head2 EXTENSION DATABASE SUPPORT
2339
2340	Crossfire maintains a very simple database for extension use. It can
2341	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2342	convert to/from binary).
2343
2344	The parameter C<$family> should best start with the name of the extension
2345	using it, it should be unique.
2346
2347	=over 4
2348
2349	=item $value = cf::db_get $family => $key
2350
2351	Returns a single value from the database.
2352
2353	=item cf::db_put $family => $key => $value
2354
2355	Stores the given C<$value> in the family.
2356
2357	=cut
2358
2359	our $DB;
2360
2361	sub db_init {
2362	unless ($DB) {
2363	$DB = BDB::db_create $DB_ENV;
2364
2365	cf::sync_job {
2366	eval {
2367	$DB->set_flags (BDB::CHKSUM);
2368
2369	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2370	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2371	cf::cleanup "db_open(db): $!" if $!;
2372	};
2373	cf::cleanup "db_open(db): $@" if $@;
2374	};
2375	}
2376	}
2377
2378	sub db_get($$) {
2379	my $key = "$_[0]/$_[1]";
2380
2381	cf::sync_job {
2382	BDB::db_get $DB, undef, $key, my $data;
2383
2384	$! ? ()
2385	: $data
2386	}
2387	}
2388
2389	sub db_put($$$) {
2390	BDB::dbreq_pri 4;
2391	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2392	}
2393
2394	=item cf::cache $id => [$paths...], $processversion => $process
2395
2396	Generic caching function that returns the value of the resource $id,
2397	caching and regenerating as required.
2398
2399	This function can block.
2400
2401	=cut
2402
2403	sub cache {
2404	my ($id, $src, $processversion, $process) = @_;
2405
2406	my $meta =
2407	join "\x00",
2408	$processversion,
2409	map {
2410	aio_stat $_
2411	and Carp::croak "$_: $!";
2412
2413	($_, (stat _)[7,9])
2414	} @$src;
2415
2416	my $dbmeta = db_get cache => "$id/meta";
2417	if ($dbmeta ne $meta) {
2418	# changed, we may need to process
2419
2420	my @data;
2421	my $md5;
2422
2423	for (0 .. $#$src) {
2424	0 <= aio_load $src->[$_], $data[$_]
2425	or Carp::croak "$src->[$_]: $!";
2426	}
2427
2428	# if processing is expensive, check
2429	# checksum first
2430	if (1) {
2431	$md5 =
2432	join "\x00",
2433	$processversion,
2434	map {
2435	Coro::cede;
2436	($src->[$_], Digest::MD5::md5_hex $data[$_])
2437	} 0.. $#$src;
2438
2439
2440	my $dbmd5 = db_get cache => "$id/md5";
2441	if ($dbmd5 eq $md5) {
2442	db_put cache => "$id/meta", $meta;
2443
2444	return db_get cache => "$id/data";
2445	}
2446	}
2447
2448	my $t1 = Time::HiRes::time;
2449	my $data = $process->(\@data);
2450	my $t2 = Time::HiRes::time;
2451
2452	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2453
2454	db_put cache => "$id/data", $data;
2455	db_put cache => "$id/md5" , $md5;
2456	db_put cache => "$id/meta", $meta;
2457
2458	return $data;
2459	}
2460
2461	db_get cache => "$id/data"
2462	}
2463
2464	=item fork_call { }, $args
2465
2466	Executes the given code block with the given arguments in a seperate
2467	process, returning the results. Everything must be serialisable with
2468	Coro::Storable. May, of course, block. Note that the executed sub may
2469	never block itself or use any form of Event handling.
2470
2471	=cut
2472
2473	sub fork_call(&@) {
2474	my ($cb, @args) = @_;
2475
2476	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2477	# or die "socketpair: $!";
2478	pipe my $fh1, my $fh2
2479	or die "pipe: $!";
2480
2481	if (my $pid = fork) {
2482	close $fh2;
2483
2484	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2485	$res = Coro::Storable::thaw $res;
2486
2487	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2488
2489	die $$res unless "ARRAY" eq ref $res;
2490
2491	return wantarray ? @$res : $res->[-1];
2492	} else {
2493	reset_signals;
2494	local $SIG{__WARN__};
2495	local $SIG{__DIE__};
2496	eval {
2497	close $fh1;
2498
2499	my @res = eval { $cb->(@args) };
2500	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2501	};
2502
2503	warn $@ if $@;
2504	_exit 0;
2505	}
2506	}
2507
2508
2509
2510	#############################################################################
2511	# the server's init and main functions	3241	# the server's init and main functions
2512		3242
2513	sub load_facedata($) {	3243	sub load_facedata($) {
2514	my ($path) = @_;	3244	my ($path) = @_;
		3245
		3246	# HACK to clear player env face cache, we need some signal framework
		3247	# for this (global event?)
		3248	%ext::player_env::MUSIC_FACE_CACHE = ();
		3249
		3250	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2515		3251
2516	warn "loading facedata from $path\n";	3252	warn "loading facedata from $path\n";
2517		3253
2518	my $facedata;	3254	my $facedata;
2519	0 < aio_load $path, $facedata	3255	0 < aio_load $path, $facedata
…		…
2522	$facedata = Coro::Storable::thaw $facedata;	3258	$facedata = Coro::Storable::thaw $facedata;
2523		3259
2524	$facedata->{version} == 2	3260	$facedata->{version} == 2
2525	or cf::cleanup "$path: version mismatch, cannot proceed.";	3261	or cf::cleanup "$path: version mismatch, cannot proceed.";
2526		3262
		3263	# patch in the exptable
		3264	$facedata->{resource}{"res/exp_table"} = {
		3265	type => FT_RSRC,
		3266	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3267	};
		3268	cf::cede_to_tick;
		3269
2527	{	3270	{
2528	my $faces = $facedata->{faceinfo};	3271	my $faces = $facedata->{faceinfo};
2529		3272
2530	while (my ($face, $info) = each %$faces) {	3273	while (my ($face, $info) = each %$faces) {
2531	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3274	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3275
2532	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3276	cf::face::set_visibility $idx, $info->{visibility};
		3277	cf::face::set_magicmap $idx, $info->{magicmap};
2533	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3278	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2534	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3279	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2535	Coro::cede;	3280
		3281	cf::cede_to_tick;
2536	}	3282	}
2537		3283
2538	while (my ($face, $info) = each %$faces) {	3284	while (my ($face, $info) = each %$faces) {
2539	next unless $info->{smooth};	3285	next unless $info->{smooth};
		3286
2540	my $idx = cf::face::find $face	3287	my $idx = cf::face::find $face
2541	or next;	3288	or next;
		3289
2542	if (my $smooth = cf::face::find $info->{smooth}) {	3290	if (my $smooth = cf::face::find $info->{smooth}) {
		3291	cf::face::set_smooth $idx, $smooth;
2543	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3292	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2544	} else {	3293	} else {
2545	warn "smooth face '$info->{smooth}' not found for face '$face'";	3294	warn "smooth face '$info->{smooth}' not found for face '$face'";
2546	}	3295	}
2547	Coro::cede;	3296
		3297	cf::cede_to_tick;
2548	}	3298	}
2549	}	3299	}
2550		3300
2551	{	3301	{
2552	my $anims = $facedata->{animinfo};	3302	my $anims = $facedata->{animinfo};
2553		3303
2554	while (my ($anim, $info) = each %$anims) {	3304	while (my ($anim, $info) = each %$anims) {
2555	cf::anim::set $anim, $info->{frames}, $info->{facings};	3305	cf::anim::set $anim, $info->{frames}, $info->{facings};
2556	Coro::cede;	3306	cf::cede_to_tick;
2557	}	3307	}
2558		3308
2559	cf::anim::invalidate_all; # d'oh	3309	cf::anim::invalidate_all; # d'oh
2560	}	3310	}
2561		3311
		3312	{
		3313	# TODO: for gcfclient pleasure, we should give resources
		3314	# that gcfclient doesn't grok a >10000 face index.
		3315	my $res = $facedata->{resource};
		3316
		3317	while (my ($name, $info) = each %$res) {
		3318	if (defined $info->{type}) {
		3319	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3320	my $data;
		3321
		3322	if ($info->{type} & 1) {
		3323	# prepend meta info
		3324
		3325	my $meta = $enc->encode ({
		3326	name => $name,
		3327	%{ $info->{meta} || {} },
		3328	});
		3329
		3330	$data = pack "(w/a*)*", $meta, $info->{data};
		3331	} else {
		3332	$data = $info->{data};
		3333	}
		3334
		3335	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3336	cf::face::set_type $idx, $info->{type};
		3337	} else {
		3338	$RESOURCE{$name} = $info;
		3339	}
		3340
		3341	cf::cede_to_tick;
		3342	}
		3343	}
		3344
		3345	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3346
2562	1	3347	1
2563	}	3348	}
2564		3349
		3350	cf::global->attach (on_resource_update => sub {
		3351	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3352	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3353
		3354	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3355	my $sound = $soundconf->{compat}[$_]
		3356	or next;
		3357
		3358	my $face = cf::face::find "sound/$sound->[1]";
		3359	cf::sound::set $sound->[0] => $face;
		3360	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3361	}
		3362
		3363	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3364	my $face = cf::face::find "sound/$v";
		3365	cf::sound::set $k => $face;
		3366	}
		3367	}
		3368	});
		3369
		3370	register_exticmd fx_want => sub {
		3371	my ($ns, $want) = @_;
		3372
		3373	while (my ($k, $v) = each %$want) {
		3374	$ns->fx_want ($k, $v);
		3375	}
		3376	};
		3377
		3378	sub load_resource_file($) {
		3379	my $guard = lock_acquire "load_resource_file";
		3380
		3381	my $status = load_resource_file_ $_[0];
		3382	get_slot 0.1, 100;
		3383	cf::arch::commit_load;
		3384
		3385	$status
		3386	}
		3387
2565	sub reload_regions {	3388	sub reload_regions {
		3389	# HACK to clear player env face cache, we need some signal framework
		3390	# for this (global event?)
		3391	%ext::player_env::MUSIC_FACE_CACHE = ();
		3392
2566	load_resource_file "$MAPDIR/regions"	3393	load_resource_file "$MAPDIR/regions"
2567	or die "unable to load regions file\n";	3394	or die "unable to load regions file\n";
		3395
		3396	for (cf::region::list) {
		3397	$_->{match} = qr/$_->{match}/
		3398	if exists $_->{match};
		3399	}
2568	}	3400	}
2569		3401
2570	sub reload_facedata {	3402	sub reload_facedata {
2571	load_facedata "$DATADIR/facedata"	3403	load_facedata "$DATADIR/facedata"
2572	or die "unable to load facedata\n";	3404	or die "unable to load facedata\n";
…		…
2583	}	3415	}
2584		3416
2585	sub reload_resources {	3417	sub reload_resources {
2586	warn "reloading resource files...\n";	3418	warn "reloading resource files...\n";
2587		3419
2588	reload_regions;
2589	reload_facedata;	3420	reload_facedata;
2590	reload_archetypes;	3421	reload_archetypes;
		3422	reload_regions;
2591	reload_treasures;	3423	reload_treasures;
2592		3424
2593	warn "finished reloading resource files\n";	3425	warn "finished reloading resource files\n";
2594	}	3426	}
2595		3427
2596	sub init {	3428	sub reload_config {
2597	reload_resources;	3429	warn "reloading config file...\n";
2598	}
2599		3430
2600	sub cfg_load {
2601	open my $fh, "<:utf8", "$CONFDIR/config"	3431	open my $fh, "<:utf8", "$CONFDIR/config"
2602	or return;	3432	or return;
2603		3433
2604	local $/;	3434	local $/;
2605	*CFG = YAML::Syck::Load <$fh>;	3435	*CFG = YAML::XS::Load scalar <$fh>;
2606		3436
2607	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3437	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2608		3438
2609	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3439	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2610	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3440	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2614	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3444	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2615	and die "WARNING: m(un)lockall failed: $!\n";	3445	and die "WARNING: m(un)lockall failed: $!\n";
2616	};	3446	};
2617	warn $@ if $@;	3447	warn $@ if $@;
2618	}	3448	}
		3449
		3450	warn "finished reloading resource files\n";
		3451	}
		3452
		3453	sub pidfile() {
		3454	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3455	or die "$PIDFILE: $!";
		3456	flock $fh, &Fcntl::LOCK_EX
		3457	or die "$PIDFILE: flock: $!";
		3458	$fh
		3459	}
		3460
		3461	# make sure only one server instance is running at any one time
		3462	sub atomic {
		3463	my $fh = pidfile;
		3464
		3465	my $pid = <$fh>;
		3466	kill 9, $pid if $pid > 0;
		3467
		3468	seek $fh, 0, 0;
		3469	print $fh $$;
		3470	}
		3471
		3472	sub main_loop {
		3473	warn "EV::loop starting\n";
		3474	if (1) {
		3475	EV::loop;
		3476	}
		3477	warn "EV::loop returned\n";
		3478	goto &main_loop unless $REALLY_UNLOOP;
2619	}	3479	}
2620		3480
2621	sub main {	3481	sub main {
		3482	cf::init_globals; # initialise logging
		3483
		3484	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3485	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3486	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3487	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3488
		3489	cf::init_experience;
		3490	cf::init_anim;
		3491	cf::init_attackmess;
		3492	cf::init_dynamic;
		3493
		3494	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3495
2622	# we must not ever block the main coroutine	3496	# we must not ever block the main coroutine
2623	local $Coro::idle = sub {	3497	local $Coro::idle = sub {
2624	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3498	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2625	(async {	3499	(async {
2626	Event::one_event;	3500	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3501	EV::loop EV::LOOP_ONESHOT;
2627	})->prio (Coro::PRIO_MAX);	3502	})->prio (Coro::PRIO_MAX);
2628	};	3503	};
2629		3504
2630	cfg_load;	3505	evthread_start IO::AIO::poll_fileno;
		3506
		3507	cf::sync_job {
		3508	reload_resources;
		3509	reload_config;
2631	db_init;	3510	db_init;
		3511
		3512	cf::load_settings;
		3513	cf::load_materials;
		3514	cf::init_uuid;
		3515	cf::init_signals;
		3516	cf::init_commands;
		3517	cf::init_skills;
		3518
		3519	cf::init_beforeplay;
		3520
		3521	atomic;
		3522
2632	load_extensions;	3523	load_extensions;
2633		3524
2634	$TICK_WATCHER->start;	3525	utime time, time, $RUNTIMEFILE;
2635	Event::loop;	3526
		3527	# no (long-running) fork's whatsoever before this point(!)
		3528	use POSIX ();
		3529	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3530
		3531	(pop @POST_INIT)->(0) while @POST_INIT;
		3532	};
		3533
		3534	main_loop;
2636	}	3535	}
2637		3536
2638	#############################################################################	3537	#############################################################################
2639	# initialisation and cleanup	3538	# initialisation and cleanup
2640		3539
2641	# install some emergency cleanup handlers	3540	# install some emergency cleanup handlers
2642	BEGIN {	3541	BEGIN {
		3542	our %SIGWATCHER = ();
2643	for my $signal (qw(INT HUP TERM)) {	3543	for my $signal (qw(INT HUP TERM)) {
2644	Event->signal (	3544	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2645	reentrant => 0,
2646	data => WF_AUTOCANCEL,
2647	signal => $signal,
2648	prio => 0,
2649	cb => sub {
2650	cf::cleanup "SIG$signal";	3545	cf::cleanup "SIG$signal";
2651	},
2652	);	3546	};
		3547	}
		3548	}
		3549
		3550	sub write_runtime_sync {
		3551	# first touch the runtime file to show we are still running:
		3552	# the fsync below can take a very very long time.
		3553
		3554	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3555
		3556	my $guard = cf::lock_acquire "write_runtime";
		3557
		3558	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3559	or return;
		3560
		3561	my $value = $cf::RUNTIME + 90 + 10;
		3562	# 10 is the runtime save interval, for a monotonic clock
		3563	# 60 allows for the watchdog to kill the server.
		3564
		3565	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3566	and return;
		3567
		3568	# always fsync - this file is important
		3569	aio_fsync $fh
		3570	and return;
		3571
		3572	# touch it again to show we are up-to-date
		3573	aio_utime $fh, undef, undef;
		3574
		3575	close $fh
		3576	or return;
		3577
		3578	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3579	and return;
		3580
		3581	warn "runtime file written.\n";
		3582
2653	}	3583	1
		3584	}
		3585
		3586	our $uuid_lock;
		3587	our $uuid_skip;
		3588
		3589	sub write_uuid_sync($) {
		3590	$uuid_skip ||= $_[0];
		3591
		3592	return if $uuid_lock;
		3593	local $uuid_lock = 1;
		3594
		3595	my $uuid = "$LOCALDIR/uuid";
		3596
		3597	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3598	or return;
		3599
		3600	my $value = uuid_seq uuid_cur;
		3601
		3602	unless ($value) {
		3603	warn "cowardly refusing to write zero uuid value!\n";
		3604	return;
		3605	}
		3606
		3607	my $value = uuid_str $value + $uuid_skip;
		3608	$uuid_skip = 0;
		3609
		3610	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3611	and return;
		3612
		3613	# always fsync - this file is important
		3614	aio_fsync $fh
		3615	and return;
		3616
		3617	close $fh
		3618	or return;
		3619
		3620	aio_rename "$uuid~", $uuid
		3621	and return;
		3622
		3623	warn "uuid file written ($value).\n";
		3624
		3625	1
		3626
		3627	}
		3628
		3629	sub write_uuid($$) {
		3630	my ($skip, $sync) = @_;
		3631
		3632	$sync ? write_uuid_sync $skip
		3633	: async { write_uuid_sync $skip };
2654	}	3634	}
2655		3635
2656	sub emergency_save() {	3636	sub emergency_save() {
2657	my $freeze_guard = cf::freeze_mainloop;	3637	my $freeze_guard = cf::freeze_mainloop;
2658		3638
2659	warn "enter emergency perl save\n";	3639	warn "emergency_perl_save: enter\n";
2660		3640
2661	cf::sync_job {	3641	cf::sync_job {
		3642	# this is a trade-off: we want to be very quick here, so
		3643	# save all maps without fsync, and later call a global sync
		3644	# (which in turn might be very very slow)
		3645	local $USE_FSYNC = 0;
		3646
2662	# use a peculiar iteration method to avoid tripping on perl	3647	# use a peculiar iteration method to avoid tripping on perl
2663	# refcount bugs in for. also avoids problems with players	3648	# refcount bugs in for. also avoids problems with players
2664	# and maps saved/destroyed asynchronously.	3649	# and maps saved/destroyed asynchronously.
2665	warn "begin emergency player save\n";	3650	warn "emergency_perl_save: begin player save\n";
2666	for my $login (keys %cf::PLAYER) {	3651	for my $login (keys %cf::PLAYER) {
2667	my $pl = $cf::PLAYER{$login} or next;	3652	my $pl = $cf::PLAYER{$login} or next;
2668	$pl->valid or next;	3653	$pl->valid or next;
		3654	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2669	$pl->save;	3655	$pl->save;
2670	}	3656	}
2671	warn "end emergency player save\n";	3657	warn "emergency_perl_save: end player save\n";
2672		3658
2673	warn "begin emergency map save\n";	3659	warn "emergency_perl_save: begin map save\n";
2674	for my $path (keys %cf::MAP) {	3660	for my $path (keys %cf::MAP) {
2675	my $map = $cf::MAP{$path} or next;	3661	my $map = $cf::MAP{$path} or next;
2676	$map->valid or next;	3662	$map->valid or next;
2677	$map->save;	3663	$map->save;
2678	}	3664	}
2679	warn "end emergency map save\n";	3665	warn "emergency_perl_save: end map save\n";
2680		3666
2681	warn "begin emergency database checkpoint\n";	3667	warn "emergency_perl_save: begin database checkpoint\n";
2682	BDB::db_env_txn_checkpoint $DB_ENV;	3668	BDB::db_env_txn_checkpoint $DB_ENV;
2683	warn "end emergency database checkpoint\n";	3669	warn "emergency_perl_save: end database checkpoint\n";
		3670
		3671	warn "emergency_perl_save: begin write uuid\n";
		3672	write_uuid_sync 1;
		3673	warn "emergency_perl_save: end write uuid\n";
2684	};	3674	};
2685		3675
		3676	warn "emergency_perl_save: starting sync()\n";
		3677	IO::AIO::aio_sync sub {
		3678	warn "emergency_perl_save: finished sync()\n";
		3679	};
		3680
2686	warn "leave emergency perl save\n";	3681	warn "emergency_perl_save: leave\n";
2687	}	3682	}
2688		3683
2689	sub post_cleanup {	3684	sub post_cleanup {
2690	my ($make_core) = @_;	3685	my ($make_core) = @_;
2691		3686
2692	warn Carp::longmess "post_cleanup backtrace"	3687	warn Carp::longmess "post_cleanup backtrace"
2693	if $make_core;	3688	if $make_core;
		3689
		3690	my $fh = pidfile;
		3691	unlink $PIDFILE if <$fh> == $$;
		3692	}
		3693
		3694	# a safer delete_package, copied from Symbol
		3695	sub clear_package($) {
		3696	my $pkg = shift;
		3697
		3698	# expand to full symbol table name if needed
		3699	unless ($pkg =~ /^main::.*::$/) {
		3700	$pkg = "main$pkg" if $pkg =~ /^::/;
		3701	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3702	$pkg .= '::' unless $pkg =~ /::$/;
		3703	}
		3704
		3705	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3706	my $stem_symtab = *{$stem}{HASH};
		3707
		3708	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3709	or return;
		3710
		3711	# clear all symbols
		3712	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3713	for my $name (keys %$leaf_symtab) {
		3714	_gv_clear *{"$pkg$name"};
		3715	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3716	}
		3717	warn "cleared package $pkg\n";#d#
2694	}	3718	}
2695		3719
2696	sub do_reload_perl() {	3720	sub do_reload_perl() {
2697	# can/must only be called in main	3721	# can/must only be called in main
2698	if ($Coro::current != $Coro::main) {	3722	if ($Coro::current != $Coro::main) {
2699	warn "can only reload from main coroutine";	3723	warn "can only reload from main coroutine";
2700	return;	3724	return;
2701	}	3725	}
2702		3726
		3727	return if $RELOAD++;
		3728
		3729	my $t1 = EV::time;
		3730
		3731	while ($RELOAD) {
2703	warn "reloading...";	3732	warn "reloading...";
2704		3733
2705	warn "entering sync_job";	3734	warn "entering sync_job";
2706		3735
2707	cf::sync_job {	3736	cf::sync_job {
2708	cf::write_runtime; # external watchdog should not bark	3737	cf::write_runtime_sync; # external watchdog should not bark
2709	cf::emergency_save;	3738	cf::emergency_save;
2710	cf::write_runtime; # external watchdog should not bark	3739	cf::write_runtime_sync; # external watchdog should not bark
2711		3740
2712	warn "syncing database to disk";	3741	warn "syncing database to disk";
2713	BDB::db_env_txn_checkpoint $DB_ENV;	3742	BDB::db_env_txn_checkpoint $DB_ENV;
2714		3743
2715	# if anything goes wrong in here, we should simply crash as we already saved	3744	# if anything goes wrong in here, we should simply crash as we already saved
2716		3745
2717	warn "cancelling all WF_AUTOCANCEL watchers";
2718	for (Event::all_watchers) {
2719	$_->cancel if $_->data & WF_AUTOCANCEL;
2720	}
2721
2722	warn "flushing outstanding aio requests";	3746	warn "flushing outstanding aio requests";
2723	for (;;) {
2724	BDB::flush;
2725	IO::AIO::flush;
2726	Coro::cede;
2727	last unless IO::AIO::nreqs || BDB::nreqs;	3747	while (IO::AIO::nreqs || BDB::nreqs) {
2728	warn "iterate...";	3748	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2729	}
2730
2731	++$RELOAD;
2732
2733	warn "cancelling all extension coros";
2734	$_->cancel for values %EXT_CORO;
2735	%EXT_CORO = ();
2736
2737	warn "removing commands";
2738	%COMMAND = ();
2739
2740	warn "removing ext commands";
2741	%EXTCMD = ();
2742
2743	warn "unloading/nuking all extensions";
2744	for my $pkg (@EXTS) {
2745	warn "... unloading $pkg";
2746
2747	if (my $cb = $pkg->can ("unload")) {
2748	eval {
2749	$cb->($pkg);
2750	1
2751	} or warn "$pkg unloaded, but with errors: $@";
2752	}	3749	}
2753		3750
2754	warn "... nuking $pkg";	3751	warn "cancelling all extension coros";
2755	Symbol::delete_package $pkg;	3752	$_->cancel for values %EXT_CORO;
2756	}	3753	%EXT_CORO = ();
2757		3754
2758	warn "unloading all perl modules loaded from $LIBDIR";	3755	warn "removing commands";
2759	while (my ($k, $v) = each %INC) {	3756	%COMMAND = ();
2760	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2761		3757
		3758	warn "removing ext/exti commands";
		3759	%EXTCMD = ();
		3760	%EXTICMD = ();
		3761
		3762	warn "unloading/nuking all extensions";
		3763	for my $pkg (@EXTS) {
2762	warn "... unloading $k";	3764	warn "... unloading $pkg";
2763	delete $INC{$k};
2764		3765
2765	$k =~ s/\.pm$//;
2766	$k =~ s/\//::/g;
2767
2768	if (my $cb = $k->can ("unload_module")) {	3766	if (my $cb = $pkg->can ("unload")) {
		3767	eval {
2769	$cb->();	3768	$cb->($pkg);
		3769	1
		3770	} or warn "$pkg unloaded, but with errors: $@";
		3771	}
		3772
		3773	warn "... clearing $pkg";
		3774	clear_package $pkg;
2770	}	3775	}
2771		3776
2772	Symbol::delete_package $k;	3777	warn "unloading all perl modules loaded from $LIBDIR";
		3778	while (my ($k, $v) = each %INC) {
		3779	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3780
		3781	warn "... unloading $k";
		3782	delete $INC{$k};
		3783
		3784	$k =~ s/\.pm$//;
		3785	$k =~ s/\//::/g;
		3786
		3787	if (my $cb = $k->can ("unload_module")) {
		3788	$cb->();
		3789	}
		3790
		3791	clear_package $k;
2773	}	3792	}
2774		3793
2775	warn "getting rid of safe::, as good as possible";	3794	warn "getting rid of safe::, as good as possible";
2776	Symbol::delete_package "safe::$_"	3795	clear_package "safe::$_"
2777	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3796	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2778		3797
2779	warn "unloading cf.pm \"a bit\"";	3798	warn "unloading cf.pm \"a bit\"";
2780	delete $INC{"cf.pm"};	3799	delete $INC{"cf.pm"};
2781	delete $INC{"cf/pod.pm"};	3800	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2782		3801
2783	# don't, removes xs symbols, too,	3802	# don't, removes xs symbols, too,
2784	# and global variables created in xs	3803	# and global variables created in xs
2785	#Symbol::delete_package __PACKAGE__;	3804	#clear_package __PACKAGE__;
2786		3805
2787	warn "unload completed, starting to reload now";	3806	warn "unload completed, starting to reload now";
2788		3807
2789	warn "reloading cf.pm";	3808	warn "reloading cf.pm";
2790	require cf;	3809	require cf;
2791	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3810	cf::_connect_to_perl_1;
2792		3811
2793	warn "loading config and database again";	3812	warn "loading config and database again";
2794	cf::cfg_load;	3813	cf::reload_config;
2795		3814
2796	warn "loading extensions";	3815	warn "loading extensions";
2797	cf::load_extensions;	3816	cf::load_extensions;
2798		3817
		3818	if ($REATTACH_ON_RELOAD) {
2799	warn "reattaching attachments to objects/players";	3819	warn "reattaching attachments to objects/players";
2800	_global_reattach; # objects, sockets	3820	_global_reattach; # objects, sockets
2801	warn "reattaching attachments to maps";	3821	warn "reattaching attachments to maps";
2802	reattach $_ for values %MAP;	3822	reattach $_ for values %MAP;
2803	warn "reattaching attachments to players";	3823	warn "reattaching attachments to players";
2804	reattach $_ for values %PLAYER;	3824	reattach $_ for values %PLAYER;
		3825	}
2805		3826
		3827	warn "running post_init jobs";
		3828	(pop @POST_INIT)->(1) while @POST_INIT;
		3829
2806	warn "leaving sync_job";	3830	warn "leaving sync_job";
2807		3831
2808	1	3832	1
2809	} or do {	3833	} or do {
2810	warn $@;	3834	warn $@;
2811	warn "error while reloading, exiting.";	3835	cf::cleanup "error while reloading, exiting.";
2812	exit 1;
2813	};	3836	};
2814		3837
2815	warn "reloaded";	3838	warn "reloaded";
		3839	--$RELOAD;
		3840	}
		3841
		3842	$t1 = EV::time - $t1;
		3843	warn "reload completed in ${t1}s\n";
2816	};	3844	};
2817		3845
2818	our $RELOAD_WATCHER; # used only during reload	3846	our $RELOAD_WATCHER; # used only during reload
2819		3847
2820	sub reload_perl() {	3848	sub reload_perl() {
2821	# doing reload synchronously and two reloads happen back-to-back,	3849	# doing reload synchronously and two reloads happen back-to-back,
2822	# coro crashes during coro_state_free->destroy here.	3850	# coro crashes during coro_state_free->destroy here.
2823		3851
2824	$RELOAD_WATCHER ||= Event->timer (	3852	$RELOAD_WATCHER ||= cf::async {
2825	reentrant => 0,	3853	Coro::AIO::aio_wait cache_extensions;
2826	after => 0,	3854
2827	data => WF_AUTOCANCEL,	3855	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2828	cb => sub {
2829	do_reload_perl;	3856	do_reload_perl;
2830	undef $RELOAD_WATCHER;	3857	undef $RELOAD_WATCHER;
2831	},	3858	};
2832	);	3859	};
2833	}	3860	}
2834		3861
2835	register_command "reload" => sub {	3862	register_command "reload" => sub {
2836	my ($who, $arg) = @_;	3863	my ($who, $arg) = @_;
2837		3864
2838	if ($who->flag (FLAG_WIZ)) {	3865	if ($who->flag (FLAG_WIZ)) {
2839	$who->message ("reloading server.");	3866	$who->message ("reloading server.");
		3867	async {
		3868	$Coro::current->{desc} = "perl_reload";
2840	async { reload_perl };	3869	reload_perl;
		3870	};
2841	}	3871	}
2842	};	3872	};
2843		3873
2844	unshift @INC, $LIBDIR;	3874	unshift @INC, $LIBDIR;
2845		3875
…		…
2847		3877
2848	our @WAIT_FOR_TICK;	3878	our @WAIT_FOR_TICK;
2849	our @WAIT_FOR_TICK_BEGIN;	3879	our @WAIT_FOR_TICK_BEGIN;
2850		3880
2851	sub wait_for_tick {	3881	sub wait_for_tick {
2852	return unless $TICK_WATCHER->is_active;
2853	return if $Coro::current == $Coro::main;	3882	return if tick_inhibit || $Coro::current == $Coro::main;
2854		3883
2855	my $signal = new Coro::Signal;	3884	my $signal = new Coro::Signal;
2856	push @WAIT_FOR_TICK, $signal;	3885	push @WAIT_FOR_TICK, $signal;
2857	$signal->wait;	3886	$signal->wait;
2858	}	3887	}
2859		3888
2860	sub wait_for_tick_begin {	3889	sub wait_for_tick_begin {
2861	return unless $TICK_WATCHER->is_active;
2862	return if $Coro::current == $Coro::main;	3890	return if tick_inhibit || $Coro::current == $Coro::main;
2863		3891
2864	my $signal = new Coro::Signal;	3892	my $signal = new Coro::Signal;
2865	push @WAIT_FOR_TICK_BEGIN, $signal;	3893	push @WAIT_FOR_TICK_BEGIN, $signal;
2866	$signal->wait;	3894	$signal->wait;
2867	}	3895	}
2868		3896
2869	my $min = 1e6;#d#	3897	sub tick {
2870	my $avg = 10;
2871	$TICK_WATCHER = Event->timer (
2872	reentrant => 0,
2873	parked => 1,
2874	prio => 0,
2875	at => $NEXT_TICK || $TICK,
2876	data => WF_AUTOCANCEL,
2877	cb => sub {
2878	if ($Coro::current != $Coro::main) {	3898	if ($Coro::current != $Coro::main) {
2879	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3899	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2880	unless ++$bug_warning > 10;	3900	unless ++$bug_warning > 10;
2881	return;	3901	return;
2882	}	3902	}
2883		3903
2884	$NOW = $tick_start = Event::time;
2885
2886	cf::server_tick; # one server iteration	3904	cf::server_tick; # one server iteration
2887		3905
2888	0 && sync_job {#d#	3906	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2889	for(1..10) {	3907	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2890	my $t = Event::time;	3908	Coro::async_pool {
2891	my $map = my $map = new_from_path cf::map "/tmp/x.map"	3909	$Coro::current->{desc} = "runtime saver";
2892	or die;	3910	write_runtime_sync
2893		3911	or warn "ERROR: unable to write runtime file: $!";
2894	$map->width (50);
2895	$map->height (50);
2896	$map->alloc;
2897	$map->_load_objects ("/tmp/x.map", 1);
2898	my $t = Event::time - $t;
2899
2900	#next unless $t < 0.0013;#d#
2901	if ($t < $min) {
2902	$min = $t;
2903	}
2904	$avg = $avg * 0.99 + $t * 0.01;
2905	}
2906	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2907	exit 0;
2908	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2909	};	3912	};
		3913	}
2910		3914
2911	$RUNTIME += $TICK;
2912	$NEXT_TICK += $TICK;
2913
2914	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2915	$NEXT_RUNTIME_WRITE = $NOW + 10;
2916	Coro::async_pool {
2917	write_runtime
2918	or warn "ERROR: unable to write runtime file: $!";
2919	};
2920	}
2921
2922	# my $AFTER = Event::time;
2923	# warn $AFTER - $NOW;#d#
2924
2925	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3915	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2926	$sig->send;	3916	$sig->send;
2927	}	3917	}
2928	while (my $sig = shift @WAIT_FOR_TICK) {	3918	while (my $sig = shift @WAIT_FOR_TICK) {
2929	$sig->send;	3919	$sig->send;
2930	}	3920	}
2931		3921
2932	$NOW = Event::time;	3922	$LOAD = ($NOW - $TICK_START) / $TICK;
2933
2934	# if we are delayed by four ticks or more, skip them all
2935	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2936
2937	$TICK_WATCHER->at ($NEXT_TICK);
2938	$TICK_WATCHER->start;
2939
2940	$LOAD = ($NOW - $tick_start) / $TICK;
2941	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3923	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2942		3924
2943	_post_tick;	3925	if (0) {
2944		3926	if ($NEXT_TICK) {
2945		3927	my $jitter = $TICK_START - $NEXT_TICK;
		3928	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3929	warn "jitter $JITTER\n";#d#
		3930	}
2946	},	3931	}
2947	);	3932	}
2948		3933
2949	{	3934	{
2950	BDB::max_poll_time $TICK * 0.1;	3935	# configure BDB
2951	$BDB_POLL_WATCHER = Event->io (	3936
2952	reentrant => 0,
2953	fd => BDB::poll_fileno,
2954	poll => 'r',
2955	prio => 0,
2956	data => WF_AUTOCANCEL,
2957	cb => \&BDB::poll_cb,
2958	);
2959	BDB::min_parallel 8;	3937	BDB::min_parallel 8;
2960		3938	BDB::max_poll_reqs $TICK * 0.1;
2961	BDB::set_sync_prepare {	3939	$AnyEvent::BDB::WATCHER->priority (1);
2962	my $status;
2963	my $current = $Coro::current;
2964	(
2965	sub {
2966	$status = $!;
2967	$current->ready; undef $current;
2968	},
2969	sub {
2970	Coro::schedule while defined $current;
2971	$! = $status;
2972	},
2973	)
2974	};
2975		3940
2976	unless ($DB_ENV) {	3941	unless ($DB_ENV) {
2977	$DB_ENV = BDB::db_env_create;	3942	$DB_ENV = BDB::db_env_create;
		3943	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3944	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3945	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3946	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3947	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2978		3948
2979	cf::sync_job {	3949	cf::sync_job {
2980	eval {	3950	eval {
2981	BDB::db_env_open	3951	BDB::db_env_open
2982	$DB_ENV,	3952	$DB_ENV,
…		…
2984	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3954	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2985	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3955	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2986	0666;	3956	0666;
2987		3957
2988	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3958	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2989
2990	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2991	$DB_ENV->set_lk_detect;
2992	};	3959	};
2993		3960
2994	cf::cleanup "db_env_open(db): $@" if $@;	3961	cf::cleanup "db_env_open(db): $@" if $@;
2995	};	3962	};
2996	}	3963	}
		3964
		3965	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3966	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3967	};
		3968	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3969	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3970	};
		3971	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3972	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3973	};
2997	}	3974	}
2998		3975
2999	{	3976	{
		3977	# configure IO::AIO
		3978
3000	IO::AIO::min_parallel 8;	3979	IO::AIO::min_parallel 8;
3001
3002	undef $Coro::AIO::WATCHER;
3003	IO::AIO::max_poll_time $TICK * 0.1;	3980	IO::AIO::max_poll_time $TICK * 0.1;
3004	$AIO_POLL_WATCHER = Event->io (	3981	undef $AnyEvent::AIO::WATCHER;
3005	reentrant => 0,
3006	data => WF_AUTOCANCEL,
3007	fd => IO::AIO::poll_fileno,
3008	poll => 'r',
3009	prio => 6,
3010	cb => \&IO::AIO::poll_cb,
3011	);
3012	}	3982	}
3013		3983
3014	my $_log_backtrace;	3984	my $_log_backtrace;
3015		3985
3016	sub _log_backtrace {	3986	sub _log_backtrace {
…		…
3019	$msg =~ s/\n//;	3989	$msg =~ s/\n//;
3020		3990
3021	# limit the # of concurrent backtraces	3991	# limit the # of concurrent backtraces
3022	if ($_log_backtrace < 2) {	3992	if ($_log_backtrace < 2) {
3023	++$_log_backtrace;	3993	++$_log_backtrace;
		3994	my $perl_bt = Carp::longmess $msg;
3024	async {	3995	async {
		3996	$Coro::current->{desc} = "abt $msg";
		3997
3025	my @bt = fork_call {	3998	my @bt = fork_call {
3026	@addr = map { sprintf "%x", $_ } @addr;	3999	@addr = map { sprintf "%x", $_ } @addr;
3027	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4000	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3028	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4001	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3029	or die "addr2line: $!";	4002	or die "addr2line: $!";
…		…
3037	}	4010	}
3038		4011
3039	@funcs	4012	@funcs
3040	};	4013	};
3041		4014
3042	LOG llevInfo, "[ABT] $msg\n";	4015	LOG llevInfo, "[ABT] $perl_bt\n";
		4016	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3043	LOG llevInfo, "[ABT] $_\n" for @bt;	4017	LOG llevInfo, "[ABT] $_\n" for @bt;
3044	--$_log_backtrace;	4018	--$_log_backtrace;
3045	};	4019	};
3046	} else {	4020	} else {
3047	LOG llevInfo, "[ABT] $msg\n";	4021	LOG llevInfo, "[ABT] $msg\n";
3048	LOG llevInfo, "[ABT] [suppressed]\n";	4022	LOG llevInfo, "[ABT] [suppressed]\n";
3049	}	4023	}
3050	}	4024	}
3051		4025
3052	# load additional modules	4026	# load additional modules
3053	use cf::pod;	4027	require "cf/$_.pm" for @EXTRA_MODULES;
		4028	cf::_connect_to_perl_2;
3054		4029
3055	END { cf::emergency_save }	4030	END { cf::emergency_save }
3056		4031
3057	1	4032	1
3058		4033

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