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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.275 by root, Thu Jun 7 19:12:22 2007 UTC vs.
Revision 1.512 by root, Sun Apr 11 04:52:07 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
71		112
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	115	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
82		124
83	our %CFG;	125	our %CFG;
84		126
85	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
87		130
88	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
91		134
92	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		137
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
98		147
99	binmode STDOUT;	148	binmode STDOUT;
100	binmode STDERR;	149	binmode STDERR;
101		150
102	# read virtual server time, if available	151	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	153	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
107	}	156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
108		159
109	mkdir $_	160	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		162
112	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
113		164
114	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		177
116	#############################################################################	178	#############################################################################
117		179
118	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
119		181
…		…
155		217
156	The raw value load value from the last tick.	218	The raw value load value from the last tick.
157		219
158	=item %cf::CFG	220	=item %cf::CFG
159		221
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	223	from wherever your confdir points to.
162		224
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		226
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
169	=back	243	=back
170		244
171	=cut	245	=cut
172		246
173	BEGIN {	247	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	248	my $msg = join "", @_;
176		249
177	$msg .= "\n"	250	$msg .= "\n"
178	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
179		252
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		254
182	utf8::encode $msg;
183	LOG llevError, $msg;	255	LOG llevError, $msg;
184	};	256	};
185	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
186		271
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
…		…
197	for my $pkg (qw(	282	for my $pkg (qw(
198	cf::global cf::attachable	283	cf::global cf::attachable
199	cf::object cf::object::player	284	cf::object cf::object::player
200	cf::client cf::player	285	cf::client cf::player
201	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
202	cf::map cf::party cf::region	288	cf::party cf::region
203	)) {	289	)) {
204	no strict 'refs';
205	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
206	}	291	}
207		292
208	$Event::DIED = sub {	293	$EV::DIED = sub {
209	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
210	};	295	};
		296
		297	#############################################################################
211		298
212	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
213		300
214	=over 4	301	=over 4
215		302
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	322	$d
236	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
237	}	324	}
238		325
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
242		327
243	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
244		329
245	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
246		331
247	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
248		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
249	=item cf::lock_wait $string	355	=item cf::lock_wait $string
250		356
251	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
252		358
253	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
254		360
255	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
258	returned.	364	returned.
259		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
260	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
262		371
263	=item $locked = cf::lock_active $string	372	=item $locked = cf::lock_active $string
264		373
265	Return true if the lock is currently active, i.e. somebody has locked it.	374	Return true if the lock is currently active, i.e. somebody has locked it.
266		375
267	=cut	376	=cut
268		377
269	our %LOCK;	378	our $LOCKS = new Coro::SemaphoreSet;
270		379
271	sub lock_wait($) {	380	sub lock_wait($) {
272	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
273
274	# wait for lock, if any
275	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;
278	}
279	}	382	}
280		383
281	sub lock_acquire($) {	384	sub lock_acquire($) {
282	my ($key) = @_;	385	$LOCKS->guard ($_[0])
283
284	# wait, to be sure we are not locked
285	lock_wait $key;
286
287	$LOCK{$key} = [];
288
289	Coro::guard {
290	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };
292	}
293	}	386	}
294		387
295	sub lock_active($) {	388	sub lock_active($) {
296	my ($key) = @_;	389	$LOCKS->count ($_[0]) < 1
297
298	! ! $LOCK{$key}
299	}	390	}
300		391
301	sub freeze_mainloop {	392	sub freeze_mainloop {
302	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
303		394
304	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
305	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
306	};	462	}
307	$TICK_WATCHER->stop;	463	};
308	$guard	464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
309	}	478	}
310		479
311	=item cf::async { BLOCK }	480	=item cf::async { BLOCK }
312		481
313	Currently the same as Coro::async_pool, meaning you cannot use	482	Currently the same as Coro::async_pool, meaning you cannot use
…		…
318		487
319	BEGIN { *async = \&Coro::async_pool }	488	BEGIN { *async = \&Coro::async_pool }
320		489
321	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
322		491
323	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
326		496
327	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
330	fast or be very important.	500	fast or be very important.
…		…
333		503
334	sub sync_job(&) {	504	sub sync_job(&) {
335	my ($job) = @_;	505	my ($job) = @_;
336		506
337	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
338	my $time = Event::time;	508	my $time = AE::time;
339		509
340	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
341	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
342		512
343	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
344	# (but this is cancel-safe)	514
345	my $freeze_guard = freeze_mainloop;	515	my $freeze_guard = freeze_mainloop;
346		516
347	my $busy = 1;	517	my $busy = 1;
348	my @res;	518	my @res;
349		519
350	(async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
351	@res = eval { $job->() };	522	@res = eval { $job->() };
352	warn $@ if $@;	523	warn $@ if $@;
353	undef $busy;	524	undef $busy;
354	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
355		526
356	while ($busy) {	527	while ($busy) {
357	Coro::cede or Event::one_event;	528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
358	}	532	}
		533	}
359		534
360	$time = Event::time - $time;	535	my $time = AE::time - $time;
361		536
362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
364
365	$tick_start += $time; # do not account sync jobs to server load	537	$TICK_START += $time; # do not account sync jobs to server load
366		538
367	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
368	} else {	540	} else {
369	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
370		542
…		…
390	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
391		563
392	$coro	564	$coro
393	}	565	}
394		566
395	sub write_runtime {	567	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		568
398	# first touch the runtime file to show we are still running:	569	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
400		573
401	IO::AIO::aio_utime $runtime, undef, undef;	574	=cut
402		575
403	my $guard = cf::lock_acquire "write_runtime";	576	sub fork_call(&@) {
		577	my ($cb, @args) = @_;
404		578
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	# we seemingly have to make a local copy of the whole thing,
406	or return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
407		582
408	my $value = $cf::RUNTIME + 90 + 10;	583	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	584	reset_signals;
410	# 60 allows for the watchdog to kill the server.	585	&$cb
		586	}, @args;
411		587
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	588	wantarray ? @res : $res[-1]
413	and return;	589	}
414		590
415	# always fsync - this file is important	591	=item $coin = coin_from_name $name
416	aio_fsync $fh
417	and return;
418		592
419	# touch it again to show we are up-to-date	593	=cut
420	aio_utime $fh, undef, undef;
421		594
422	close $fh	595	our %coin_alias = (
423	or return;	596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
424		611
425	aio_rename "$runtime~", $runtime	612	sub coin_from_name($) {
426	and return;	613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
427		617
428	warn "runtime file written.\n";	618	=item $value = cf::db_get $family => $key
429		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
430	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
431	}	743	}
432		744
433	=item cf::datalog type => key => value, ...	745	=item cf::datalog type => key => value, ...
434		746
435	Log a datalog packet of the given type with the given key-value pairs.	747	Log a datalog packet of the given type with the given key-value pairs.
…		…
447		759
448	#############################################################################	760	#############################################################################
449		761
450	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
451		763
452	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
453	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
455		767
456	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	770	Deliantra).
459		771
460	=over 4	772	=over 4
461		773
462	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
463		775
…		…
507	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
508		820
509	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
511		823
512	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
513	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
514		826
515	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
516		828
517	=over 4	829	=over 4
…		…
665	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
666	}	978	}
667		979
668	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
669	} else {	981	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	983	}
672		984
673	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
674	}	986	}
675		987
…		…
715	";	1027	";
716	die if $@;	1028	die if $@;
717	}	1029	}
718		1030
719	our $override;	1031	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1033
722	sub override {	1034	sub override {
723	$override = 1;	1035	$override = 1;
724	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
725	}	1037	}
726		1038
727	sub do_invoke {	1039	sub do_invoke {
728	my $event = shift;	1040	my $event = shift;
729	my $callbacks = shift;	1041	my $callbacks = shift;
730		1042
731	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
732		1044
733	local $override;	1045	local $override;
734		1046
735	for (@$callbacks) {	1047	for (@$callbacks) {
736	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
745	}	1057	}
746		1058
747	0	1059	0
748	}	1060	}
749		1061
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1063
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1065
754	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
755		1067
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1071
760	=back	1072	=back
761		1073
762	=cut	1074	=cut
763		1075
764	#############################################################################	1076	#############################################################################
765	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
766		1120
767	sub reattach {	1121	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1123	my ($obj) = @_;
770		1124
		1125	# no longer needed after getting rid of delete_package?
771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1127
773	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
774		1129
775	@$registry = ();	1130	@$registry = ();
776		1131
…		…
791	cf::attachable->attach (	1146	cf::attachable->attach (
792	prio => -1000000,	1147	prio => -1000000,
793	on_instantiate => sub {	1148	on_instantiate => sub {
794	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
795		1150
796	$data = from_json $data;	1151	$data = decode_json $data;
797		1152
798	for (@$data) {	1153	for (@$data) {
799	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
800		1155
801	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1172	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
819		1174
820	sync_job {	1175	sync_job {
821	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
824		1180
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1186	aio_fsync $fh;
		1187	}
829	close $fh;	1188	aio_close $fh;
830		1189
831	if (@$objs) {	1190	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh if $cf::USE_FSYNC;	1195	if ($cf::USE_FSYNC) {
		1196	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1197	aio_fsync $fh;
		1198	}
837	close $fh;	1199	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
839	}	1201	}
840	} else {	1202	} else {
841	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
842	}	1204	}
843		1205
844	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1210	} else {
846	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
847	}	1212	}
848	} else {	1213	} else {
849	aio_unlink $filename;	1214	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
851	}	1216	}
852	}	1217	};
853	}	1218	}
854		1219
855	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
857		1222
…		…
869	or return;	1234	or return;
870		1235
871	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
873	or return;	1238	or return;
		1239
874	$av = eval { (Storable::thaw $av)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
875	}	1242	}
876		1243
		1244	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1245	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};	1246	$decname, length $data, scalar @{$av || []};
		1247
879	return ($data, $av);	1248	($data, $av)
880	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
881		1256
882	#############################################################################	1257	#############################################################################
883	# command handling &c	1258	# command handling &c
884		1259
885	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1274	}
900		1275
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1277
903	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
904		1283
905	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
906	called.	1285	called.
907		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
908	=cut	1298	=cut
909		1299
910	sub register_extcmd {	1300	sub register_extcmd {
911	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
912		1302
913	$EXTCMD{$name} = $cb;	1303	$EXTCMD{$name} = $cb;
914	}	1304	}
915		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
		1313
916	cf::player->attach (	1314	cf::player->attach (
917	on_command => sub {	1315	on_unknown_command => sub {
918	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
919		1317
920	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
921	or return;	1319	or return;
922		1320
…		…
927	cf::override;	1325	cf::override;
928	},	1326	},
929	on_extcmd => sub {	1327	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
931		1329
932	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1331
934	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
940	} else {	1347	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1349	}
943		1350
944	cf::override;	1351	cf::override;
945	},	1352	},
946	);	1353	);
947		1354
		1355	# "readahead" all extensions
948	sub load_extension {	1356	sub cache_extensions {
949	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
950		1358
951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
952	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
953	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
954	$pkg =~ s/[^[:word:]]/_/g;
955	$pkg = "ext::$pkg";
956
957	warn "... loading '$path' into '$pkg'\n";
958
959	open my $fh, "<:utf8", $path
960	or die "$path: $!";
961
962	my $source =
963	"package $pkg; use strict; use utf8;\n"
964	. "#line 1 \"$path\"\n{\n"
965	. (do { local $/; <$fh> })
966	. "\n};\n1";
967
968	unless (eval $source) {
969	my $msg = $@ ? "$path: $@\n"
970	: "extension disabled.\n";
971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
972	warn $@;
973	warn "mandatory extension failed to load, exiting.\n";
974	exit 1;
975	}	1362	}
976	die $@;
977	}	1363	};
978		1364
979	push @EXTS, $pkg;	1365	$grp
980	}	1366	}
981		1367
982	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
983	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1373	next unless -r $path;
985	eval {	1374
986	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
987	1	1435	}
988	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
989	}	1446	};
990	}	1447	}
991		1448
992	#############################################################################	1449	#############################################################################
993		1450
		1451	=back
		1452
994	=head2 CORE EXTENSIONS	1453	=head2 CORE EXTENSIONS
995		1454
996	Functions and methods that extend core crossfire objects.	1455	Functions and methods that extend core deliantra objects.
997		1456
998	=cut	1457	=cut
999		1458
1000	package cf::player;	1459	package cf::player;
1001		1460
1002	use Coro::AIO;	1461	use Coro::AIO;
1003		1462
1004	=head3 cf::player	1463	=head3 cf::player
1005		1464
1006	=over 4	1465	=over 4
		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
1007		1480
1008	=item cf::player::find $login	1481	=item cf::player::find $login
1009		1482
1010	Returns the given player object, loading it if necessary (might block).	1483	Returns the given player object, loading it if necessary (might block).
1011		1484
…		…
1030		1503
1031	sub exists($) {	1504	sub exists($) {
1032	my ($login) = @_;	1505	my ($login) = @_;
1033		1506
1034	$cf::PLAYER{$login}	1507	$cf::PLAYER{$login}
1035	or cf::sync_job { !aio_stat path $login }	1508	or !aio_stat path $login
1036	}	1509	}
1037		1510
1038	sub find($) {	1511	sub find($) {
1039	return $cf::PLAYER{$_[0]} || do {	1512	return $cf::PLAYER{$_[0]} || do {
1040	my $login = $_[0];	1513	my $login = $_[0];
…		…
1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1050	aio_unlink +(playerdir $login) . "/$login.pl";	1523	aio_unlink +(playerdir $login) . "/$login.pl";
1051		1524
1052	my $pl = load_pl path $login	1525	my $f = new_from_file cf::object::thawer path $login
1053	or return;	1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
1054	$cf::PLAYER{$login} = $pl	1533	$cf::PLAYER{$login} = $pl
1055	}	1534	}
1056	}	1535	}
1057	}	1536	}
		1537
		1538	cf::player->attach (
		1539	on_load => sub {
		1540	my ($pl, $path) = @_;
		1541
		1542	# restore slots saved in save, below
		1543	my $slots = delete $pl->{_slots};
		1544
		1545	$pl->ob->current_weapon ($slots->[0]);
		1546	$pl->combat_ob ($slots->[1]);
		1547	$pl->ranged_ob ($slots->[2]);
		1548	},
		1549	);
1058		1550
1059	sub save($) {	1551	sub save($) {
1060	my ($pl) = @_;	1552	my ($pl) = @_;
1061		1553
1062	return if $pl->{deny_save};	1554	return if $pl->{deny_save};
…		…
1067	return if $pl->{deny_save};	1559	return if $pl->{deny_save};
1068		1560
1069	aio_mkdir playerdir $pl, 0770;	1561	aio_mkdir playerdir $pl, 0770;
1070	$pl->{last_save} = $cf::RUNTIME;	1562	$pl->{last_save} = $cf::RUNTIME;
1071		1563
		1564	cf::get_slot 0.01;
		1565
		1566	# save slots, to be restored later
		1567	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1568
1072	$pl->save_pl ($path);	1569	$pl->save_pl ($path);
1073	Coro::cede;	1570	cf::cede_to_tick;
1074	}	1571	}
1075		1572
1076	sub new($) {	1573	sub new($) {
1077	my ($login) = @_;	1574	my ($login) = @_;
1078		1575
…		…
1084	$cf::PLAYER{$login} = $self;	1581	$cf::PLAYER{$login} = $self;
1085		1582
1086	$self	1583	$self
1087	}	1584	}
1088		1585
		1586	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1587
		1588	=cut
		1589
		1590	sub send_msg {
		1591	my $ns = shift->ns
		1592	or return;
		1593	$ns->send_msg (@_);
		1594	}
		1595
1089	=item $pl->quit_character	1596	=item $pl->quit_character
1090		1597
1091	Nukes the player without looking back. If logged in, the connection will	1598	Nukes the player without looking back. If logged in, the connection will
1092	be destroyed. May block for a long time.	1599	be destroyed. May block for a long time.
1093		1600
…		…
1097	my ($pl) = @_;	1604	my ($pl) = @_;
1098		1605
1099	my $name = $pl->ob->name;	1606	my $name = $pl->ob->name;
1100		1607
1101	$pl->{deny_save} = 1;	1608	$pl->{deny_save} = 1;
1102	$pl->password ("*"); # this should lock out the player until we nuked the dir	1609	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1103		1610
1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1105	$pl->deactivate;	1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1107	$pl->ns->destroy if $pl->ns;	1616	$pl->ns->destroy if $pl->ns;
1108		1617
1109	my $path = playerdir $pl;	1618	my $path = playerdir $pl;
1110	my $temp = "$path~$cf::RUNTIME~deleting~";	1619	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1146	or return [];	1655	or return [];
1147		1656
1148	my @logins;	1657	my @logins;
1149		1658
1150	for my $login (@$dirs) {	1659	for my $login (@$dirs) {
		1660	my $path = path $login;
		1661
		1662	# a .pst is a dead give-away for a valid player
		1663	# if no pst file found, open and chekc for blocked users
		1664	if (aio_stat "$path.pst") {
1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1152	aio_read $fh, 0, 512, my $buf, 0 or next;	1666	aio_read $fh, 0, 512, my $buf, 0 or next;
1153	$buf !~ /^password -------------$/m or next; # official not-valid tag	1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
1154		1669
1155	utf8::decode $login;	1670	utf8::decode $login;
1156	push @logins, $login;	1671	push @logins, $login;
1157	}	1672	}
1158		1673
…		…
1185	}	1700	}
1186		1701
1187	\@paths	1702	\@paths
1188	}	1703	}
1189		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
1190	=item $player->ext_reply ($msgid, %msg)	1709	=item $player->ext_reply ($msgid, @msg)
1191		1710
1192	Sends an ext reply to the player.	1711	Sends an ext reply to the player.
1193		1712
1194	=cut	1713	=cut
1195		1714
1196	sub ext_reply($$%) {	1715	sub ext_reply($$@) {
1197	my ($self, $id, %msg) = @_;	1716	my ($self, $id, @msg) = @_;
1198		1717
1199	$msg{msgid} = $id;	1718	$self->ns->ext_reply ($id, @msg)
1200
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1719	}
1203		1720
1204	=item $player->ext_event ($type, %msg)	1721	=item $player->ext_msg ($type, @msg)
1205		1722
1206	Sends an ext event to the client.	1723	Sends an ext event to the client.
1207		1724
1208	=cut	1725	=cut
1209		1726
1210	sub ext_event($$%) {	1727	sub ext_msg($$@) {
1211	my ($self, $type, %msg) = @_;	1728	my ($self, $type, @msg) = @_;
1212		1729
1213	$self->ns->ext_event ($type, %msg);	1730	$self->ns->ext_msg ($type, @msg);
1214	}	1731	}
1215		1732
1216	=head3 cf::region	1733	=head3 cf::region
1217		1734
1218	=over 4	1735	=over 4
…		…
1221		1738
1222	package cf::region;	1739	package cf::region;
1223		1740
1224	=item cf::region::find_by_path $path	1741	=item cf::region::find_by_path $path
1225		1742
1226	Tries to decuce the probable region for a map knowing only its path.	1743	Tries to decuce the likely region for a map knowing only its path.
1227		1744
1228	=cut	1745	=cut
1229		1746
1230	sub find_by_path($) {	1747	sub find_by_path($) {
1231	my ($path) = @_;	1748	my ($path) = @_;
1232		1749
1233	my ($match, $specificity);	1750	my ($match, $specificity);
1234		1751
1235	for my $region (list) {	1752	for my $region (list) {
1236	if ($region->match && $path =~ $region->match) {	1753	if ($region->{match} && $path =~ $region->{match}) {
1237	($match, $specificity) = ($region, $region->specificity)	1754	($match, $specificity) = ($region, $region->specificity)
1238	if $region->specificity > $specificity;	1755	if $region->specificity > $specificity;
1239	}	1756	}
1240	}	1757	}
1241		1758
…		…
1262	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1263	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1264		1781
1265	sub generate_random_map {	1782	sub generate_random_map {
1266	my ($self, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1786
1267	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1268	$self->_create_random_map (	1788	$self->_create_random_map (
1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1272	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1273	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1361	$self->init; # pass $1 etc.	1881	$self->init; # pass $1 etc.
1362	return $self;	1882	return $self;
1363	}	1883	}
1364	}	1884	}
1365		1885
1366	Carp::carp "unable to resolve path '$path' (base '$base').";	1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
1367	()	1887	()
1368	}	1888	}
1369		1889
1370	sub init {	1890	sub init {
1371	my ($self) = @_;	1891	my ($self) = @_;
…		…
1393		1913
1394	# the temporary/swap location	1914	# the temporary/swap location
1395	sub save_path {	1915	sub save_path {
1396	my ($self) = @_;	1916	my ($self) = @_;
1397		1917
1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1399	"$TMPDIR/$path.map"	1919	"$TMPDIR/$path.map"
1400	}	1920	}
1401		1921
1402	# the unique path, undef == no special unique path	1922	# the unique path, undef == no special unique path
1403	sub uniq_path {	1923	sub uniq_path {
1404	my ($self) = @_;	1924	my ($self) = @_;
1405		1925
1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1407	"$UNIQUEDIR/$path"	1927	"$UNIQUEDIR/$path"
1408	}
1409
1410	# and all this just because we cannot iterate over
1411	# all maps in C++...
1412	sub change_all_map_light {
1413	my ($change) = @_;
1414
1415	$_->change_map_light ($change)
1416	for grep $_->outdoor, values %cf::MAP;
1417	}	1928	}
1418		1929
1419	sub decay_objects {	1930	sub decay_objects {
1420	my ($self) = @_;	1931	my ($self) = @_;
1421		1932
…		…
1434		1945
1435	sub load_header_from($) {	1946	sub load_header_from($) {
1436	my ($self, $path) = @_;	1947	my ($self, $path) = @_;
1437		1948
1438	utf8::encode $path;	1949	utf8::encode $path;
1439	#aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1440	# or return;
1441
1442	$self->_load_header ($path)
1443	or return;	1951	or return;
		1952
		1953	$self->_load_header ($f)
		1954	or return;
		1955
		1956	local $MAP_LOADING{$self->{path}} = $self;
		1957	$f->resolve_delayed_derefs;
1444		1958
1445	$self->{load_path} = $path;	1959	$self->{load_path} = $path;
1446		1960
1447	1	1961	1
1448	}	1962	}
…		…
1502	sub find {	2016	sub find {
1503	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1504		2018
1505	$path = normalise $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1506		2020
		2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1507	cf::lock_wait "map_find:$path";	2022	my $guard2 = cf::lock_acquire "map_find:$path";
1508		2023
1509	$cf::MAP{$path} || do {	2024	$cf::MAP{$path} || do {
1510	my $guard = cf::lock_acquire "map_find:$path";
1511	my $map = new_from_path cf::map $path	2025	my $map = new_from_path cf::map $path
1512	or return;	2026	or return;
1513		2027
1514	$map->{last_save} = $cf::RUNTIME;	2028	$map->{last_save} = $cf::RUNTIME;
1515		2029
…		…
1517	or return;	2031	or return;
1518		2032
1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)	2033	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1520	# doing this can freeze the server in a sync job, obviously	2034	# doing this can freeze the server in a sync job, obviously
1521	#$cf::WAIT_FOR_TICK->wait;	2035	#$cf::WAIT_FOR_TICK->wait;
		2036	undef $guard2;
		2037	undef $guard1;
1522	$map->reset;	2038	$map->reset;
1523	undef $guard;
1524	return find $path;	2039	return find $path;
1525	}	2040	}
1526		2041
1527	$cf::MAP{$path} = $map	2042	$cf::MAP{$path} = $map
1528	}	2043	}
1529	}	2044	}
1530		2045
1531	sub pre_load { }	2046	sub pre_load { }
1532	sub post_load { }	2047	#sub post_load { } # XS
1533		2048
1534	sub load {	2049	sub load {
1535	my ($self) = @_;	2050	my ($self) = @_;
1536		2051
1537	local $self->{deny_reset} = 1; # loading can take a long time	2052	local $self->{deny_reset} = 1; # loading can take a long time
1538		2053
1539	my $path = $self->{path};	2054	my $path = $self->{path};
1540		2055
1541	{	2056	{
1542	my $guard = cf::lock_acquire "map_load:$path";	2057	my $guard = cf::lock_acquire "map_data:$path";
1543		2058
		2059	return unless $self->valid;
1544	return if $self->in_memory != cf::MAP_SWAPPED;	2060	return unless $self->in_memory == cf::MAP_SWAPPED;
1545		2061
1546	$self->in_memory (cf::MAP_LOADING);	2062	$self->in_memory (cf::MAP_LOADING);
1547		2063
1548	$self->alloc;	2064	$self->alloc;
1549		2065
1550	$self->pre_load;	2066	$self->pre_load;
1551	Coro::cede;	2067	cf::cede_to_tick;
1552		2068
		2069	my $f = new_from_file cf::object::thawer $self->{load_path};
		2070	$f->skip_block;
1553	$self->_load_objects ($self->{load_path}, 1)	2071	$self->_load_objects ($f)
1554	or return;	2072	or return;
1555		2073
1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1557	if delete $self->{load_original};	2075	if delete $self->{load_original};
1558		2076
1559	if (my $uniq = $self->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1560	utf8::encode $uniq;	2078	utf8::encode $uniq;
1561	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1562	$self->clear_unique_items;	2081	$self->clear_unique_items;
1563	$self->_load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1564	}	2085	}
1565	}	2086	}
1566		2087
1567	Coro::cede;	2088	$f->resolve_delayed_derefs;
		2089
		2090	cf::cede_to_tick;
1568	# now do the right thing for maps	2091	# now do the right thing for maps
1569	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1570	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1571	unless $self->difficulty;	2094	unless $self->difficulty;
1572	Coro::cede;	2095	cf::cede_to_tick;
1573		2096
1574	unless ($self->{deny_activate}) {	2097	unless ($self->{deny_activate}) {
1575	$self->decay_objects;	2098	$self->decay_objects;
1576	$self->fix_auto_apply;	2099	$self->fix_auto_apply;
1577	$self->update_buttons;	2100	$self->update_buttons;
1578	Coro::cede;	2101	cf::cede_to_tick;
1579	$self->set_darkness_map;
1580	Coro::cede;
1581	$self->activate;	2102	$self->activate;
1582	}	2103	}
1583		2104
		2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
		2107
1584	$self->in_memory (cf::MAP_IN_MEMORY);	2108	$self->in_memory (cf::MAP_ACTIVE);
1585	}	2109	}
1586		2110
1587	$self->post_load;	2111	$self->post_load;
1588	}	2112	}
1589		2113
		2114	# customize the map for a given player, i.e.
		2115	# return the _real_ map. used by e.g. per-player
		2116	# maps to change the path to ~playername/mappath
1590	sub customise_for {	2117	sub customise_for {
1591	my ($self, $ob) = @_;	2118	my ($self, $ob) = @_;
1592		2119
1593	return find "~" . $ob->name . "/" . $self->{path}	2120	return find "~" . $ob->name . "/" . $self->{path}
1594	if $self->per_player;	2121	if $self->per_player;
…		…
1598		2125
1599	$self	2126	$self
1600	}	2127	}
1601		2128
1602	# find and load all maps in the 3x3 area around a map	2129	# find and load all maps in the 3x3 area around a map
1603	sub load_diag {	2130	sub load_neighbours {
1604	my ($map) = @_;	2131	my ($map) = @_;
1605		2132
1606	my @diag; # diagonal neighbours	2133	my @neigh; # diagonal neighbours
1607		2134
1608	for (0 .. 3) {	2135	for (0 .. 3) {
1609	my $neigh = $map->tile_path ($_)	2136	my $neigh = $map->tile_path ($_)
1610	or next;	2137	or next;
1611	$neigh = find $neigh, $map	2138	$neigh = find $neigh, $map
1612	or next;	2139	or next;
1613	$neigh->load;	2140	$neigh->load;
1614		2141
		2142	push @neigh,
1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1617	}	2145	}
1618		2146
1619	for (@diag) {	2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
1620	my $neigh = find @$_	2149	my $neigh = find $path, $origin
1621	or next;	2150	or next;
1622	$neigh->load;	2151	$neigh->load;
1623	}	2152	}
1624	}	2153	}
1625		2154
…		…
1630	}	2159	}
1631		2160
1632	sub do_load_sync {	2161	sub do_load_sync {
1633	my ($map) = @_;	2162	my ($map) = @_;
1634		2163
		2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2165	if $Coro::current == $Coro::main;
		2166
1635	cf::sync_job { $map->load };	2167	cf::sync_job { $map->load };
1636	}	2168	}
1637		2169
1638	our %MAP_PREFETCH;	2170	our %MAP_PREFETCH;
1639	our $MAP_PREFETCHER = undef;	2171	our $MAP_PREFETCHER = undef;
1640		2172
1641	sub find_async {	2173	sub find_async {
1642	my ($path, $origin) = @_;	2174	my ($path, $origin, $load) = @_;
1643		2175
1644	$path = normalise $path, $origin && $origin->{path};	2176	$path = normalise $path, $origin && $origin->{path};
1645		2177
1646	if (my $map = $cf::MAP{$path}) {	2178	if (my $map = $cf::MAP{$path}) {
1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2179	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1648	}	2180	}
1649		2181
1650	undef $MAP_PREFETCH{$path};	2182	$MAP_PREFETCH{$path} |= $load;
		2183
1651	$MAP_PREFETCHER ||= cf::async {	2184	$MAP_PREFETCHER ||= cf::async {
		2185	$Coro::current->{desc} = "map prefetcher";
		2186
1652	while (%MAP_PREFETCH) {	2187	while (%MAP_PREFETCH) {
1653	for my $path (keys %MAP_PREFETCH) {	2188	while (my ($k, $v) = each %MAP_PREFETCH) {
1654	my $map = find $path	2189	if (my $map = find $k) {
1655	or next;
1656	$map->load;	2190	$map->load if $v;
		2191	}
1657		2192
1658	delete $MAP_PREFETCH{$path};	2193	delete $MAP_PREFETCH{$k};
1659	}	2194	}
1660	}	2195	}
1661	undef $MAP_PREFETCHER;	2196	undef $MAP_PREFETCHER;
1662	};	2197	};
1663	$MAP_PREFETCHER->prio (6);	2198	$MAP_PREFETCHER->prio (6);
…		…
1666	}	2201	}
1667		2202
1668	sub save {	2203	sub save {
1669	my ($self) = @_;	2204	my ($self) = @_;
1670		2205
1671	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2207
1673	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1674		2209
1675	return unless $self->dirty;	2210	return unless $self->dirty;
1676		2211
…		…
1682	return if $self->{deny_save};	2217	return if $self->{deny_save};
1683		2218
1684	local $self->{last_access} = $self->last_access;#d#	2219	local $self->{last_access} = $self->last_access;#d#
1685		2220
1686	cf::async {	2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
1687	$_->contr->save for $self->players;	2223	$_->contr->save for $self->players;
1688	};	2224	};
		2225
		2226	cf::get_slot 0.02;
1689		2227
1690	if ($uniq) {	2228	if ($uniq) {
1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1693	} else {	2231	} else {
…		…
1699	my ($self) = @_;	2237	my ($self) = @_;
1700		2238
1701	# save first because save cedes	2239	# save first because save cedes
1702	$self->save;	2240	$self->save;
1703		2241
1704	my $lock = cf::lock_acquire "map_data:" . $self->path;	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1705		2243
1706	return if $self->players;	2244	return if $self->players;
1707	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1708	return if $self->{deny_save};	2246	return if $self->{deny_save};
1709		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1710	$self->clear;	2252	$self->clear;
1711	$self->in_memory (cf::MAP_SWAPPED);
1712	}	2253	}
1713		2254
1714	sub reset_at {	2255	sub reset_at {
1715	my ($self) = @_;	2256	my ($self) = @_;
1716		2257
…		…
1734		2275
1735	my $lock = cf::lock_acquire "map_data:$self->{path}";	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1736		2277
1737	return if $self->players;	2278	return if $self->players;
1738		2279
1739	warn "resetting map ", $self->path;	2280	warn "resetting map ", $self->path, "\n";
1740		2281
1741	$self->in_memory (cf::MAP_SWAPPED);	2282	$self->in_memory (cf::MAP_SWAPPED);
1742		2283
1743	# need to save uniques path	2284	# need to save uniques path
1744	unless ($self->{deny_save}) {	2285	unless ($self->{deny_save}) {
…		…
1748	if $uniq;	2289	if $uniq;
1749	}	2290	}
1750		2291
1751	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1752		2293
		2294	$self->deactivate;
		2295	$_->clear_links_to ($self) for values %cf::MAP;
1753	$self->clear;	2296	$self->clear;
1754
1755	$_->clear_links_to ($self) for values %cf::MAP;
1756		2297
1757	$self->unlink_save;	2298	$self->unlink_save;
1758	$self->destroy;	2299	$self->destroy;
1759	}	2300	}
1760		2301
1761	my $nuke_counter = "aaaa";	2302	my $nuke_counter = "aaaa";
1762		2303
1763	sub nuke {	2304	sub nuke {
1764	my ($self) = @_;	2305	my ($self) = @_;
1765		2306
		2307	{
		2308	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2309
1766	delete $cf::MAP{$self->path};	2310	delete $cf::MAP{$self->path};
1767		2311
1768	$self->unlink_save;	2312	$self->unlink_save;
1769		2313
1770	bless $self, "cf::map";	2314	bless $self, "cf::map";
1771	delete $self->{deny_reset};	2315	delete $self->{deny_reset};
1772	$self->{deny_save} = 1;	2316	$self->{deny_save} = 1;
1773	$self->reset_timeout (1);	2317	$self->reset_timeout (1);
1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1775		2319
1776	$cf::MAP{$self->path} = $self;	2320	$cf::MAP{$self->path} = $self;
		2321	}
1777		2322
1778	$self->reset; # polite request, might not happen	2323	$self->reset; # polite request, might not happen
		2324	}
		2325
		2326	=item $maps = cf::map::tmp_maps
		2327
		2328	Returns an arrayref with all map paths of currently instantiated and saved
		2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
		2342	}
		2343
		2344	=item $maps = cf::map::random_maps
		2345
		2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
		2348
		2349	=cut
		2350
		2351	sub random_maps() {
		2352	[
		2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
1779	}	2360	}
1780		2361
1781	=item cf::map::unique_maps	2362	=item cf::map::unique_maps
1782		2363
1783	Returns an arrayref of paths of all shared maps that have	2364	Returns an arrayref of paths of all shared maps that have
1784	instantiated unique items. May block.	2365	instantiated unique items. May block.
1785		2366
1786	=cut	2367	=cut
1787		2368
1788	sub unique_maps() {	2369	sub unique_maps() {
1789	my $files = aio_readdir $UNIQUEDIR	2370	[
1790	or return;	2371	map {
1791
1792	my @paths;
1793
1794	for (@$files) {
1795	utf8::decode $_;	2372	utf8::decode $_;
1796	next if /\.pst$/;	2373	s/\.map$//; # TODO future compatibility hack
1797	next unless /^$PATH_SEP/o;	2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1798		2375	? ()
1799	push @paths, cf::map::normalise $_;	2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
1800	}	2378	]
1801
1802	\@paths
1803	}	2379	}
1804		2380
1805	package cf;	2381	=item cf::map::static_maps
		2382
		2383	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2384	file in the shared directory excluding F</styles> and F</editor>). May
		2385	block.
		2386
		2387	=cut
		2388
		2389	sub static_maps() {
		2390	my @dirs = "";
		2391	my @maps;
		2392
		2393	while (@dirs) {
		2394	my $dir = shift @dirs;
		2395
		2396	next if $dir eq "/styles" || $dir eq "/editor";
		2397
		2398	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2399	or return;
		2400
		2401	for (@$files) {
		2402	s/\.map$// or next;
		2403	utf8::decode $_;
		2404	push @maps, "$dir/$_";
		2405	}
		2406
		2407	push @dirs, map "$dir/$_", @$dirs;
		2408	}
		2409
		2410	\@maps
		2411	}
1806		2412
1807	=back	2413	=back
1808		2414
1809	=head3 cf::object	2415	=head3 cf::object
1810		2416
…		…
1814		2420
1815	=over 4	2421	=over 4
1816		2422
1817	=item $ob->inv_recursive	2423	=item $ob->inv_recursive
1818		2424
1819	Returns the inventory of the object _and_ their inventories, recursively.	2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
1820		2427
1821	=cut	2428	=cut
1822		2429
1823	sub inv_recursive_;	2430	sub inv_recursive_;
1824	sub inv_recursive_ {	2431	sub inv_recursive_ {
…		…
1827		2434
1828	sub inv_recursive {	2435	sub inv_recursive {
1829	inv_recursive_ inv $_[0]	2436	inv_recursive_ inv $_[0]
1830	}	2437	}
1831		2438
		2439	=item $ref = $ob->ref
		2440
		2441	Creates and returns a persistent reference to an object that can be stored as a string.
		2442
		2443	=item $ob = cf::object::deref ($refstring)
		2444
		2445	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2446	even if the object actually exists. May block.
		2447
		2448	=cut
		2449
		2450	sub deref {
		2451	my ($ref) = @_;
		2452
		2453	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2454	my ($uuid, $name) = ($1, $2);
		2455	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2456	or return;
		2457	$pl->ob->uuid eq $uuid
		2458	or return;
		2459
		2460	$pl->ob
		2461	} else {
		2462	warn "$ref: cannot resolve object reference\n";
		2463	undef
		2464	}
		2465	}
		2466
1832	package cf;	2467	package cf;
1833		2468
1834	=back	2469	=back
1835		2470
1836	=head3 cf::object::player	2471	=head3 cf::object::player
…		…
1842	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2477	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1843	can be C<undef>. Does the right thing when the player is currently in a	2478	can be C<undef>. Does the right thing when the player is currently in a
1844	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1845		2480
1846	=cut	2481	=cut
		2482
		2483	our $SAY_CHANNEL = {
		2484	id => "say",
		2485	title => "Map",
		2486	reply => "say ",
		2487	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2488	};
		2489
		2490	our $CHAT_CHANNEL = {
		2491	id => "chat",
		2492	title => "Chat",
		2493	reply => "chat ",
		2494	tooltip => "Player chat and shouts, global to the server.",
		2495	};
1847		2496
1848	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1849	# with dialog boxes.	2498	# with dialog boxes.
1850	#TODO: the first argument must go, split into a $npc->reply_to ( method	2499	#TODO: the first argument must go, split into a $npc->reply_to ( method
1851	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1853		2502
1854	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1855		2504
1856	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1857	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1858	} else {	2508	} else {
		2509	my $pl = $self->contr;
		2510
		2511	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2512	my $dialog = $pl->{npc_dialog};
		2513	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2514
		2515	} else {
1859	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1860	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1861	}	2519	}
		2520	}
		2521
		2522	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2523
		2524	=cut
		2525
		2526	sub cf::object::send_msg {
		2527	my $pl = shift->contr
		2528	or return;
		2529	$pl->send_msg (@_);
1862	}	2530	}
1863		2531
1864	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1865		2533
1866	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1879		2547
1880	=item $player_object->enter_link	2548	=item $player_object->enter_link
1881		2549
1882	Freezes the player and moves him/her to a special map (C<{link}>).	2550	Freezes the player and moves him/her to a special map (C<{link}>).
1883		2551
1884	The player should be reasonably safe there for short amounts of time. You	2552	The player should be reasonably safe there for short amounts of time (e.g.
1885	I<MUST> call C<leave_link> as soon as possible, though.	2553	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2554	though, as the palyer cannot control the character while it is on the link
		2555	map.
1886		2556
1887	Will never block.	2557	Will never block.
1888		2558
1889	=item $player_object->leave_link ($map, $x, $y)	2559	=item $player_object->leave_link ($map, $x, $y)
1890		2560
…		…
1942	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1943	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1944		2614
1945	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1946	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1947	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1948		2618
1949	$map->load;	2619	$map->load;
1950	$map->load_diag;	2620	$map->load_neighbours;
1951		2621
1952	return unless $self->contr->active;	2622	return unless $self->contr->active;
1953	$self->activate_recursive;
1954		2623
1955	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2624	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1956	$self->enter_map ($map, $x, $y);	2625	$self->enter_map ($map, $x, $y);
1957	}
1958		2626
		2627	# only activate afterwards, to support waiting in hooks
		2628	$self->activate_recursive;
		2629	}
		2630
1959	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1960		2632
1961	Moves the player to the given map-path and coordinates by first freezing	2633	Moves the player to the given map-path and coordinates by first freezing
1962	her, loading and preparing them map, calling the provided $check callback	2634	her, loading and preparing them map, calling the provided $check callback
1963	that has to return the map if sucecssful, and then unfreezes the player on	2635	that has to return the map if sucecssful, and then unfreezes the player on
1964	the new (success) or old (failed) map position.	2636	the new (success) or old (failed) map position. In either case, $done will
		2637	be called at the end of this process.
		2638
		2639	Note that $check will be called with a potentially non-loaded map, so if
		2640	it needs a loaded map it has to call C<< ->load >>.
1965		2641
1966	=cut	2642	=cut
1967		2643
1968	our $GOTOGEN;	2644	our $GOTOGEN;
1969		2645
1970	sub cf::object::player::goto {	2646	sub cf::object::player::goto {
1971	my ($self, $path, $x, $y, $check) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
1972		2648
1973	# do generation counting so two concurrent goto's will be executed in-order	2649	# do generation counting so two concurrent goto's will be executed in-order
1974	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1975		2651
1976	$self->enter_link;	2652	$self->enter_link;
1977		2653
1978	(async {	2654	(async {
		2655	$Coro::current->{desc} = "player::goto $path $x $y";
		2656
		2657	# *tag paths override both path and x|y
		2658	if ($path =~ /^\*(.*)$/) {
		2659	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2660	my $ob = $obs[rand @obs];
		2661
		2662	# see if we actually can go there
		2663	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2664	$ob = $obs[rand @obs];
		2665	} else {
		2666	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
		2668	# else put us there anyways for now #d#
		2669
		2670	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2671	} else {
		2672	($path, $x, $y) = (undef, undef, undef);
		2673	}
		2674	}
		2675
1979	my $map = eval {	2676	my $map = eval {
1980	my $map = cf::map::find $path;	2677	my $map = defined $path ? cf::map::find $path : undef;
1981		2678
1982	if ($map) {	2679	if ($map) {
1983	$map = $map->customise_for ($self);	2680	$map = $map->customise_for ($self);
1984	$map = $check->($map) if $check && $map;	2681	$map = $check->($map) if $check && $map;
1985	} else {	2682	} else {
1986	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
1987	}	2684	}
1988		2685
1989	$map	2686	$map
1990	};	2687	};
1991		2688
…		…
1996		2693
1997	if ($gen == $self->{_goto_generation}) {	2694	if ($gen == $self->{_goto_generation}) {
1998	delete $self->{_goto_generation};	2695	delete $self->{_goto_generation};
1999	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
2000	}	2697	}
		2698
		2699	$done->() if $done;
2001	})->prio (1);	2700	})->prio (1);
2002	}	2701	}
2003		2702
2004	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
2005		2704
…		…
2025	}	2724	}
2026		2725
2027	sub prepare_random_map {	2726	sub prepare_random_map {
2028	my ($exit) = @_;	2727	my ($exit) = @_;
2029		2728
2030	my $guard = cf::lock_acquire "exit_prepare:$exit";
2031
2032	# all this does is basically replace the /! path by	2729	# all this does is basically replace the /! path by
2033	# a new random map path (?random/...) with a seed	2730	# a new random map path (?random/...) with a seed
2034	# that depends on the exit object	2731	# that depends on the exit object
2035		2732
2036	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
…		…
2038	if ($exit->map) {	2735	if ($exit->map) {
2039	$rmp->{region} = $exit->region->name;	2736	$rmp->{region} = $exit->region->name;
2040	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
2041	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
2042	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
2043	}	2742	}
2044		2743
2045	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
2046		2745
2047	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2048	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
2049	my $meta = "$RANDOMDIR/$md5.meta";	2748	my $meta = "$RANDOMDIR/$md5.meta";
2050		2749
2051	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2750	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2052	aio_write $fh, 0, (length $data), $data, 0;	2751	aio_write $fh, 0, (length $data), $data, 0;
2053	undef $fh;	2752	undef $fh;
2054	aio_rename "$meta~", $meta;	2753	aio_rename "$meta~", $meta;
2055		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
2056	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
2057	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
2058	}	2761	}
2059	}	2762	}
2060		2763
2061	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
2062	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
2063		2766
2064	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
2065		2768
2066	if ($exit->slaying eq "/!") {
2067	#TODO: this should de-fi-ni-te-ly not be a sync-job
2068	# the problem is that $exit might not survive long enough
2069	# so it needs to be done right now, right here
2070	cf::sync_job { prepare_random_map $exit };
2071	}
2072
2073	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2074	my $hp = $exit->stats->hp;
2075	my $sp = $exit->stats->sp;
2076
2077	$self->enter_link;	2769	$self->enter_link;
2078		2770
2079	(async {	2771	(async {
2080	$self->deactivate_recursive; # just to be sure	2772	$Coro::current->{desc} = "enter_exit";
		2773
2081	unless (eval {	2774	unless (eval {
		2775	$self->deactivate_recursive; # just to be sure
		2776
		2777	# random map handling
		2778	{
		2779	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2780
		2781	prepare_random_map $exit
		2782	if $exit->slaying eq "/!";
		2783	}
		2784
		2785	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
		2788
2082	$self->goto ($slaying, $hp, $sp);	2789	$self->goto ($map, $x, $y);
2083		2790
		2791	# if exit is damned, update players death & WoR home-position
		2792	$self->contr->savebed ($map, $x, $y)
		2793	if $exit->flag (cf::FLAG_DAMNED);
		2794
2084	1;	2795	1
2085	}) {	2796	}) {
2086	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
2087	. "I'll try to bring you back to the map you were before. "	2798	. "I'll try to bring you back to the map you were before. "
2088	. "Please report this to the dungeon master!",	2799	. "Please report this to the dungeon master!",
2089	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
2090		2801
2091	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
…		…
2110		2821
2111	utf8::encode $text;	2822	utf8::encode $text;
2112	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2113	}	2824	}
2114		2825
		2826	=item $client->send_big_packet ($pkt)
		2827
		2828	Like C<send_packet>, but tries to compress large packets, and fragments
		2829	them as required.
		2830
		2831	=cut
		2832
		2833	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2834
		2835	sub cf::client::send_big_packet {
		2836	my ($self, $pkt) = @_;
		2837
		2838	# try lzf for large packets
		2839	$pkt = "lzf " . Compress::LZF::compress $pkt
		2840	if 1024 <= length $pkt and $self->{can_lzf};
		2841
		2842	# split very large packets
		2843	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2844	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2845	$pkt = "frag";
		2846	}
		2847
		2848	$self->send_packet ($pkt);
		2849	}
		2850
		2851	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2852
		2853	Send a drawinfo or msg packet to the client, formatting the msg for the
		2854	client if neccessary. C<$type> should be a string identifying the type of
		2855	the message, with C<log> being the default. If C<$color> is negative, suppress
		2856	the message unless the client supports the msg packet.
		2857
		2858	=cut
		2859
		2860	# non-persistent channels (usually the info channel)
		2861	our %CHANNEL = (
		2862	"c/motd" => {
		2863	id => "infobox",
		2864	title => "MOTD",
		2865	reply => undef,
		2866	tooltip => "The message of the day",
		2867	},
		2868	"c/identify" => {
		2869	id => "infobox",
		2870	title => "Identify",
		2871	reply => undef,
		2872	tooltip => "Items recently identified",
		2873	},
		2874	"c/examine" => {
		2875	id => "infobox",
		2876	title => "Examine",
		2877	reply => undef,
		2878	tooltip => "Signs and other items you examined",
		2879	},
		2880	"c/shopinfo" => {
		2881	id => "infobox",
		2882	title => "Shop Info",
		2883	reply => undef,
		2884	tooltip => "What your bargaining skill tells you about the shop",
		2885	},
		2886	"c/book" => {
		2887	id => "infobox",
		2888	title => "Book",
		2889	reply => undef,
		2890	tooltip => "The contents of a note or book",
		2891	},
		2892	"c/lookat" => {
		2893	id => "infobox",
		2894	title => "Look",
		2895	reply => undef,
		2896	tooltip => "What you saw there",
		2897	},
		2898	"c/who" => {
		2899	id => "infobox",
		2900	title => "Players",
		2901	reply => undef,
		2902	tooltip => "Shows players who are currently online",
		2903	},
		2904	"c/body" => {
		2905	id => "infobox",
		2906	title => "Body Parts",
		2907	reply => undef,
		2908	tooltip => "Shows which body parts you posess and are available",
		2909	},
		2910	"c/statistics" => {
		2911	id => "infobox",
		2912	title => "Statistics",
		2913	reply => undef,
		2914	tooltip => "Shows your primary statistics",
		2915	},
		2916	"c/skills" => {
		2917	id => "infobox",
		2918	title => "Skills",
		2919	reply => undef,
		2920	tooltip => "Shows your experience per skill and item power",
		2921	},
		2922	"c/shopitems" => {
		2923	id => "infobox",
		2924	title => "Shop Items",
		2925	reply => undef,
		2926	tooltip => "Shows the items currently for sale in this shop",
		2927	},
		2928	"c/resistances" => {
		2929	id => "infobox",
		2930	title => "Resistances",
		2931	reply => undef,
		2932	tooltip => "Shows your resistances",
		2933	},
		2934	"c/pets" => {
		2935	id => "infobox",
		2936	title => "Pets",
		2937	reply => undef,
		2938	tooltip => "Shows information abotu your pets/a specific pet",
		2939	},
		2940	"c/perceiveself" => {
		2941	id => "infobox",
		2942	title => "Perceive Self",
		2943	reply => undef,
		2944	tooltip => "You gained detailed knowledge about yourself",
		2945	},
		2946	"c/uptime" => {
		2947	id => "infobox",
		2948	title => "Uptime",
		2949	reply => undef,
		2950	tooltip => "How long the server has been running since last restart",
		2951	},
		2952	"c/mapinfo" => {
		2953	id => "infobox",
		2954	title => "Map Info",
		2955	reply => undef,
		2956	tooltip => "Information related to the maps",
		2957	},
		2958	"c/party" => {
		2959	id => "party",
		2960	title => "Party",
		2961	reply => "gsay ",
		2962	tooltip => "Messages and chat related to your party",
		2963	},
		2964	"c/death" => {
		2965	id => "death",
		2966	title => "Death",
		2967	reply => undef,
		2968	tooltip => "Reason for and more info about your most recent death",
		2969	},
		2970	"c/say" => $SAY_CHANNEL,
		2971	"c/chat" => $CHAT_CHANNEL,
		2972	);
		2973
		2974	sub cf::client::send_msg {
		2975	my ($self, $channel, $msg, $color, @extra) = @_;
		2976
		2977	$msg = $self->pl->expand_cfpod ($msg)
		2978	unless $color & cf::NDI_VERBATIM;
		2979
		2980	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2981
		2982	# check predefined channels, for the benefit of C
		2983	if ($CHANNEL{$channel}) {
		2984	$channel = $CHANNEL{$channel};
		2985
		2986	$self->ext_msg (channel_info => $channel);
		2987	$channel = $channel->{id};
		2988
		2989	} elsif (ref $channel) {
		2990	# send meta info to client, if not yet sent
		2991	unless (exists $self->{channel}{$channel->{id}}) {
		2992	$self->{channel}{$channel->{id}} = $channel;
		2993	$self->ext_msg (channel_info => $channel);
		2994	}
		2995
		2996	$channel = $channel->{id};
		2997	}
		2998
		2999	return unless @extra || length $msg;
		3000
		3001	# default colour, mask it out
		3002	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3003	if $color & cf::NDI_DEF;
		3004
		3005	my $pkt = "msg "
		3006	. $self->{json_coder}->encode (
		3007	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3008	);
		3009
		3010	$self->send_big_packet ($pkt);
		3011	}
		3012
2115	=item $client->ext_event ($type, %msg)	3013	=item $client->ext_msg ($type, @msg)
2116		3014
2117	Sends an exti event to the client.	3015	Sends an ext event to the client.
2118		3016
2119	=cut	3017	=cut
2120		3018
2121	sub cf::client::ext_event($$%) {	3019	sub cf::client::ext_msg($$@) {
2122	my ($self, $type, %msg) = @_;	3020	my ($self, $type, @msg) = @_;
2123		3021
		3022	if ($self->extcmd == 2) {
		3023	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3024	} elsif ($self->extcmd == 1) { # TODO: remove
2124	$msg{msgtype} = "event_$type";	3025	push @msg, msgtype => "event_$type";
2125	$self->send_packet ("ext " . cf::to_json \%msg);	3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3027	}
		3028	}
		3029
		3030	=item $client->ext_reply ($msgid, @msg)
		3031
		3032	Sends an ext reply to the client.
		3033
		3034	=cut
		3035
		3036	sub cf::client::ext_reply($$@) {
		3037	my ($self, $id, @msg) = @_;
		3038
		3039	if ($self->extcmd == 2) {
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3041	} elsif ($self->extcmd == 1) {
		3042	#TODO: version 1, remove
		3043	unshift @msg, msgtype => "reply", msgid => $id;
		3044	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3045	}
2126	}	3046	}
2127		3047
2128	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
2129		3049
2130	Queues a query to the client, calling the given callback with	3050	Queues a query to the client, calling the given callback with
2131	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3051	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2132	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3052	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2133		3053
2134	Queries can fail, so check the return code. Or don't, as queries will become	3054	Queries can fail, so check the return code. Or don't, as queries will
2135	reliable at some point in the future.	3055	become reliable at some point in the future.
2136		3056
2137	=cut	3057	=cut
2138		3058
2139	sub cf::client::query {	3059	sub cf::client::query {
2140	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
2148	utf8::encode $text;	3068	utf8::encode $text;
2149	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2150		3070
2151	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
2152	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
2153	}	3075	}
2154		3076
2155	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
2156	on_reply => sub {	3083	on_reply => sub {
2157	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
2158		3085
2159	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
2160	# get handled first	3087	# get handled first
…		…
2172	} else {	3099	} else {
2173	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2174	}	3101	}
2175	}	3102	}
2176	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($ns, $buf) = @_;
		3106
		3107	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3108
		3109	if (ref $msg) {
		3110	my ($type, $reply, @payload) =
		3111	"ARRAY" eq ref $msg
		3112	? @$msg
		3113	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3114
		3115	my @reply;
		3116
		3117	if (my $cb = $EXTICMD{$type}) {
		3118	@reply = $cb->($ns, @payload);
		3119	}
		3120
		3121	$ns->ext_reply ($reply, @reply)
		3122	if $reply;
		3123
		3124	} else {
		3125	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3126	}
		3127
		3128	cf::override;
		3129	},
2177	);	3130	);
2178		3131
2179	=item $client->async (\&cb)	3132	=item $client->async (\&cb)
2180		3133
2181	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
…		…
2197		3150
2198	$coro	3151	$coro
2199	}	3152	}
2200		3153
2201	cf::client->attach (	3154	cf::client->attach (
2202	on_destroy => sub {	3155	on_client_destroy => sub {
2203	my ($ns) = @_;	3156	my ($ns) = @_;
2204		3157
2205	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2206	},	3159	},
2207	);	3160	);
…		…
2222	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
2223	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
2224		3177
2225	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
2226		3179
2227	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
2228		3185
2229	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
2230		3187
2231	=pod	3188	=pod
2232		3189
2233	The following functions and methods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
2234		3191
2235	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
2236	cf::object::player player	3197	cf::object::player
2237	cf::player peaceful	3198	player
2238	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
2239		3205
2240	=cut	3206	=cut
2241		3207
2242	for (	3208	for (
2243	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
2244	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
2245	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
2246	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
2247	) {	3215	) {
2248	no strict 'refs';	3216	no strict 'refs';
2249	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
2250	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2268		3236
2269	my $qcode = $code;	3237	my $qcode = $code;
2270	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2271	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
2272		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
2273	local $_;	3244	local $_;
2274	local @safe::cf::_safe_eval_args = values %vars;
2275		3245
2276	my $eval =	3246	my $eval =
2277	"do {\n"	3247	"do {\n"
2278	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2279	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
2280	. $code	3250	. $code
2281	. "\n}"	3251	. "\n}"
2282	;	3252	;
2283		3253
		3254	if ($CFG{safe_eval}) {
2284	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
2285	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2286	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
2287		3263
2288	if ($@) {	3264	if ($@) {
2289	warn "$@";	3265	warn "$@";
2290	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
2291	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2310	=cut	3286	=cut
2311		3287
2312	sub register_script_function {	3288	sub register_script_function {
2313	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
2314		3290
2315	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
2316	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
2317	}	3293	}
2318		3294
2319	=back	3295	=back
2320		3296
2321	=cut	3297	=cut
2322
2323	#############################################################################
2324
2325	=head2 EXTENSION DATABASE SUPPORT
2326
2327	Crossfire maintains a very simple database for extension use. It can
2328	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2329	convert to/from binary).
2330
2331	The parameter C<$family> should best start with the name of the extension
2332	using it, it should be unique.
2333
2334	=over 4
2335
2336	=item $value = cf::db_get $family => $key
2337
2338	Returns a single value from the database.
2339
2340	=item cf::db_put $family => $key => $value
2341
2342	Stores the given C<$value> in the family.
2343
2344	=cut
2345
2346	our $DB;
2347
2348	sub db_init {
2349	unless ($DB) {
2350	$DB = BDB::db_create $DB_ENV;
2351
2352	cf::sync_job {
2353	eval {
2354	$DB->set_flags (BDB::CHKSUM);
2355
2356	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2357	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2358	cf::cleanup "db_open(db): $!" if $!;
2359	};
2360	cf::cleanup "db_open(db): $@" if $@;
2361	};
2362	}
2363	}
2364
2365	sub db_get($$) {
2366	my $key = "$_[0]/$_[1]";
2367
2368	cf::sync_job {
2369	BDB::db_get $DB, undef, $key, my $data;
2370
2371	$! ? ()
2372	: $data
2373	}
2374	}
2375
2376	sub db_put($$$) {
2377	BDB::dbreq_pri 4;
2378	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2379	}
2380
2381	=item cf::cache $id => [$paths...], $processversion => $process
2382
2383	Generic caching function that returns the value of the resource $id,
2384	caching and regenerating as required.
2385
2386	This function can block.
2387
2388	=cut
2389
2390	sub cache {
2391	my ($id, $src, $processversion, $process) = @_;
2392
2393	my $meta =
2394	join "\x00",
2395	$processversion,
2396	map {
2397	aio_stat $_
2398	and Carp::croak "$_: $!";
2399
2400	($_, (stat _)[7,9])
2401	} @$src;
2402
2403	my $dbmeta = db_get cache => "$id/meta";
2404	if ($dbmeta ne $meta) {
2405	# changed, we may need to process
2406
2407	my @data;
2408	my $md5;
2409
2410	for (0 .. $#$src) {
2411	0 <= aio_load $src->[$_], $data[$_]
2412	or Carp::croak "$src->[$_]: $!";
2413	}
2414
2415	# if processing is expensive, check
2416	# checksum first
2417	if (1) {
2418	$md5 =
2419	join "\x00",
2420	$processversion,
2421	map {
2422	Coro::cede;
2423	($src->[$_], Digest::MD5::md5_hex $data[$_])
2424	} 0.. $#$src;
2425
2426
2427	my $dbmd5 = db_get cache => "$id/md5";
2428	if ($dbmd5 eq $md5) {
2429	db_put cache => "$id/meta", $meta;
2430
2431	return db_get cache => "$id/data";
2432	}
2433	}
2434
2435	my $t1 = Time::HiRes::time;
2436	my $data = $process->(\@data);
2437	my $t2 = Time::HiRes::time;
2438
2439	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2440
2441	db_put cache => "$id/data", $data;
2442	db_put cache => "$id/md5" , $md5;
2443	db_put cache => "$id/meta", $meta;
2444
2445	return $data;
2446	}
2447
2448	db_get cache => "$id/data"
2449	}
2450
2451	=item fork_call { }, $args
2452
2453	Executes the given code block with the given arguments in a seperate
2454	process, returning the results. Everything must be serialisable with
2455	Coro::Storable. May, of course, block. Note that the executed sub may
2456	never block itself or use any form of Event handling.
2457
2458	=cut
2459
2460	sub fork_call(&@) {
2461	my ($cb, @args) = @_;
2462
2463	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2464	# or die "socketpair: $!";
2465	pipe my $fh1, my $fh2
2466	or die "pipe: $!";
2467
2468	if (my $pid = fork) {
2469	close $fh2;
2470
2471	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2472	$res = Coro::Storable::thaw $res;
2473
2474	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2475
2476	die $$res unless "ARRAY" eq ref $res;
2477
2478	return wantarray ? @$res : $res->[-1];
2479	} else {
2480	reset_signals;
2481	local $SIG{__WARN__};
2482	local $SIG{__DIE__};
2483	eval {
2484	close $fh1;
2485
2486	my @res = eval { $cb->(@args) };
2487	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2488	};
2489
2490	warn $@ if $@;
2491	_exit 0;
2492	}
2493	}
2494		3298
2495	#############################################################################	3299	#############################################################################
2496	# the server's init and main functions	3300	# the server's init and main functions
2497		3301
2498	sub load_facedata($) {	3302	sub load_facedata($) {
2499	my ($path) = @_;	3303	my ($path) = @_;
		3304
		3305	# HACK to clear player env face cache, we need some signal framework
		3306	# for this (global event?)
		3307	%ext::player_env::MUSIC_FACE_CACHE = ();
		3308
		3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2500		3310
2501	warn "loading facedata from $path\n";	3311	warn "loading facedata from $path\n";
2502		3312
2503	my $facedata;	3313	my $facedata;
2504	0 < aio_load $path, $facedata	3314	0 < aio_load $path, $facedata
…		…
2507	$facedata = Coro::Storable::thaw $facedata;	3317	$facedata = Coro::Storable::thaw $facedata;
2508		3318
2509	$facedata->{version} == 2	3319	$facedata->{version} == 2
2510	or cf::cleanup "$path: version mismatch, cannot proceed.";	3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
2511		3321
		3322	# patch in the exptable
		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3324	$facedata->{resource}{"res/exp_table"} = {
		3325	type => FT_RSRC,
		3326	data => $exp_table,
		3327	hash => (Digest::MD5::md5 $exp_table),
		3328	};
		3329	cf::cede_to_tick;
		3330
2512	{	3331	{
2513	my $faces = $facedata->{faceinfo};	3332	my $faces = $facedata->{faceinfo};
2514		3333
2515	while (my ($face, $info) = each %$faces) {	3334	while (my ($face, $info) = each %$faces) {
2516	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3336
2517	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3337	cf::face::set_visibility $idx, $info->{visibility};
		3338	cf::face::set_magicmap $idx, $info->{magicmap};
2518	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2519	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2520	Coro::cede;	3341
		3342	cf::cede_to_tick;
2521	}	3343	}
2522		3344
2523	while (my ($face, $info) = each %$faces) {	3345	while (my ($face, $info) = each %$faces) {
2524	next unless $info->{smooth};	3346	next unless $info->{smooth};
		3347
2525	my $idx = cf::face::find $face	3348	my $idx = cf::face::find $face
2526	or next;	3349	or next;
		3350
2527	if (my $smooth = cf::face::find $info->{smooth}) {	3351	if (my $smooth = cf::face::find $info->{smooth}) {
		3352	cf::face::set_smooth $idx, $smooth;
2528	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3353	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2529	} else {	3354	} else {
2530	warn "smooth face '$info->{smooth}' not found for face '$face'";	3355	warn "smooth face '$info->{smooth}' not found for face '$face'";
2531	}	3356	}
2532	Coro::cede;	3357
		3358	cf::cede_to_tick;
2533	}	3359	}
2534	}	3360	}
2535		3361
2536	{	3362	{
2537	my $anims = $facedata->{animinfo};	3363	my $anims = $facedata->{animinfo};
2538		3364
2539	while (my ($anim, $info) = each %$anims) {	3365	while (my ($anim, $info) = each %$anims) {
2540	cf::anim::set $anim, $info->{frames}, $info->{facings};	3366	cf::anim::set $anim, $info->{frames}, $info->{facings};
2541	Coro::cede;	3367	cf::cede_to_tick;
2542	}	3368	}
2543		3369
2544	cf::anim::invalidate_all; # d'oh	3370	cf::anim::invalidate_all; # d'oh
2545	}	3371	}
2546		3372
		3373	{
		3374	my $res = $facedata->{resource};
		3375
		3376	while (my ($name, $info) = each %$res) {
		3377	if (defined $info->{type}) {
		3378	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3379
		3380	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3381	cf::face::set_type $idx, $info->{type};
		3382	} else {
		3383	$RESOURCE{$name} = $info;
		3384	}
		3385
		3386	cf::cede_to_tick;
		3387	}
		3388	}
		3389
		3390	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3391
2547	1	3392	1
2548	}	3393	}
2549		3394
		3395	cf::global->attach (on_resource_update => sub {
		3396	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3397	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3398
		3399	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3400	my $sound = $soundconf->{compat}[$_]
		3401	or next;
		3402
		3403	my $face = cf::face::find "sound/$sound->[1]";
		3404	cf::sound::set $sound->[0] => $face;
		3405	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3406	}
		3407
		3408	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3409	my $face = cf::face::find "sound/$v";
		3410	cf::sound::set $k => $face;
		3411	}
		3412	}
		3413	});
		3414
		3415	register_exticmd fx_want => sub {
		3416	my ($ns, $want) = @_;
		3417
		3418	while (my ($k, $v) = each %$want) {
		3419	$ns->fx_want ($k, $v);
		3420	}
		3421	};
		3422
		3423	sub load_resource_file($) {
		3424	my $guard = lock_acquire "load_resource_file";
		3425
		3426	my $status = load_resource_file_ $_[0];
		3427	get_slot 0.1, 100;
		3428	cf::arch::commit_load;
		3429
		3430	$status
		3431	}
		3432
2550	sub reload_regions {	3433	sub reload_regions {
		3434	# HACK to clear player env face cache, we need some signal framework
		3435	# for this (global event?)
		3436	%ext::player_env::MUSIC_FACE_CACHE = ();
		3437
2551	load_resource_file "$MAPDIR/regions"	3438	load_resource_file "$MAPDIR/regions"
2552	or die "unable to load regions file\n";	3439	or die "unable to load regions file\n";
		3440
		3441	for (cf::region::list) {
		3442	$_->{match} = qr/$_->{match}/
		3443	if exists $_->{match};
		3444	}
2553	}	3445	}
2554		3446
2555	sub reload_facedata {	3447	sub reload_facedata {
2556	load_facedata "$DATADIR/facedata"	3448	load_facedata "$DATADIR/facedata"
2557	or die "unable to load facedata\n";	3449	or die "unable to load facedata\n";
…		…
2568	}	3460	}
2569		3461
2570	sub reload_resources {	3462	sub reload_resources {
2571	warn "reloading resource files...\n";	3463	warn "reloading resource files...\n";
2572		3464
		3465	reload_facedata;
		3466	reload_archetypes;
2573	reload_regions;	3467	reload_regions;
2574	reload_facedata;
2575	#reload_archetypes;#d#
2576	reload_archetypes;
2577	reload_treasures;	3468	reload_treasures;
2578		3469
2579	warn "finished reloading resource files\n";	3470	warn "finished reloading resource files\n";
2580	}	3471	}
2581		3472
2582	sub init {	3473	sub reload_config {
2583	reload_resources;	3474	warn "reloading config file...\n";
2584	}
2585		3475
2586	sub cfg_load {
2587	open my $fh, "<:utf8", "$CONFDIR/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
2588	or return;	3477	or return;
2589		3478
2590	local $/;	3479	local $/;
2591	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
2592		3481
2593	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2594		3483
2595	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3484	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2596	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3485	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2600	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2601	and die "WARNING: m(un)lockall failed: $!\n";	3490	and die "WARNING: m(un)lockall failed: $!\n";
2602	};	3491	};
2603	warn $@ if $@;	3492	warn $@ if $@;
2604	}	3493	}
		3494
		3495	warn "finished reloading resource files\n";
		3496	}
		3497
		3498	sub pidfile() {
		3499	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3500	or die "$PIDFILE: $!";
		3501	flock $fh, &Fcntl::LOCK_EX
		3502	or die "$PIDFILE: flock: $!";
		3503	$fh
		3504	}
		3505
		3506	# make sure only one server instance is running at any one time
		3507	sub atomic {
		3508	my $fh = pidfile;
		3509
		3510	my $pid = <$fh>;
		3511	kill 9, $pid if $pid > 0;
		3512
		3513	seek $fh, 0, 0;
		3514	print $fh $$;
		3515	}
		3516
		3517	sub main_loop {
		3518	warn "EV::loop starting\n";
		3519	if (1) {
		3520	EV::loop;
		3521	}
		3522	warn "EV::loop returned\n";
		3523	goto &main_loop unless $REALLY_UNLOOP;
2605	}	3524	}
2606		3525
2607	sub main {	3526	sub main {
		3527	cf::init_globals; # initialise logging
		3528
		3529	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3530	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3531	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3532	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3533
		3534	cf::init_experience;
		3535	cf::init_anim;
		3536	cf::init_attackmess;
		3537	cf::init_dynamic;
		3538
		3539	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3540
2608	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
2609	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
2610	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3543	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2611	(async {	3544	(async {
2612	Event::one_event;	3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3546	EV::loop EV::LOOP_ONESHOT;
2613	})->prio (Coro::PRIO_MAX);	3547	})->prio (Coro::PRIO_MAX);
2614	};	3548	};
2615		3549
2616	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
		3551
		3552	cf::sync_job {
		3553	cf::load_settings;
		3554	cf::load_materials;
		3555
		3556	reload_resources;
		3557	reload_config;
2617	db_init;	3558	db_init;
		3559
		3560	cf::init_uuid;
		3561	cf::init_signals;
		3562	cf::init_skills;
		3563
		3564	cf::init_beforeplay;
		3565
		3566	atomic;
		3567
2618	load_extensions;	3568	load_extensions;
2619		3569
2620	$TICK_WATCHER->start;	3570	utime time, time, $RUNTIMEFILE;
2621	Event::loop;	3571
		3572	# no (long-running) fork's whatsoever before this point(!)
		3573	use POSIX ();
		3574	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3575
		3576	(pop @POST_INIT)->(0) while @POST_INIT;
		3577	};
		3578
		3579	main_loop;
2622	}	3580	}
2623		3581
2624	#############################################################################	3582	#############################################################################
2625	# initialisation and cleanup	3583	# initialisation and cleanup
2626		3584
2627	# install some emergency cleanup handlers	3585	# install some emergency cleanup handlers
2628	BEGIN {	3586	BEGIN {
		3587	our %SIGWATCHER = ();
2629	for my $signal (qw(INT HUP TERM)) {	3588	for my $signal (qw(INT HUP TERM)) {
2630	Event->signal (	3589	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2631	reentrant => 0,
2632	data => WF_AUTOCANCEL,
2633	signal => $signal,
2634	prio => 0,
2635	cb => sub {
2636	cf::cleanup "SIG$signal";	3590	cf::cleanup "SIG$signal";
2637	},
2638	);	3591	};
		3592	}
		3593	}
		3594
		3595	sub write_runtime_sync {
		3596	my $t0 = AE::time;
		3597
		3598	# first touch the runtime file to show we are still running:
		3599	# the fsync below can take a very very long time.
		3600
		3601	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3602
		3603	my $guard = cf::lock_acquire "write_runtime";
		3604
		3605	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3606	or return;
		3607
		3608	my $value = $cf::RUNTIME + 90 + 10;
		3609	# 10 is the runtime save interval, for a monotonic clock
		3610	# 60 allows for the watchdog to kill the server.
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	# touch it again to show we are up-to-date
		3620	aio_utime $fh, undef, undef;
		3621
		3622	close $fh
		3623	or return;
		3624
		3625	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3626	and return;
		3627
		3628	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3629
2639	}	3630	1
		3631	}
		3632
		3633	our $uuid_lock;
		3634	our $uuid_skip;
		3635
		3636	sub write_uuid_sync($) {
		3637	$uuid_skip ||= $_[0];
		3638
		3639	return if $uuid_lock;
		3640	local $uuid_lock = 1;
		3641
		3642	my $uuid = "$LOCALDIR/uuid";
		3643
		3644	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3645	or return;
		3646
		3647	my $value = uuid_seq uuid_cur;
		3648
		3649	unless ($value) {
		3650	warn "cowardly refusing to write zero uuid value!\n";
		3651	return;
		3652	}
		3653
		3654	my $value = uuid_str $value + $uuid_skip;
		3655	$uuid_skip = 0;
		3656
		3657	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3658	and return;
		3659
		3660	# always fsync - this file is important
		3661	aio_fsync $fh
		3662	and return;
		3663
		3664	close $fh
		3665	or return;
		3666
		3667	aio_rename "$uuid~", $uuid
		3668	and return;
		3669
		3670	warn "uuid file written ($value).\n";
		3671
		3672	1
		3673
		3674	}
		3675
		3676	sub write_uuid($$) {
		3677	my ($skip, $sync) = @_;
		3678
		3679	$sync ? write_uuid_sync $skip
		3680	: async { write_uuid_sync $skip };
2640	}	3681	}
2641		3682
2642	sub emergency_save() {	3683	sub emergency_save() {
2643	my $freeze_guard = cf::freeze_mainloop;	3684	my $freeze_guard = cf::freeze_mainloop;
2644		3685
2645	warn "enter emergency perl save\n";	3686	warn "emergency_perl_save: enter\n";
2646		3687
2647	cf::sync_job {	3688	cf::sync_job {
		3689	# this is a trade-off: we want to be very quick here, so
		3690	# save all maps without fsync, and later call a global sync
		3691	# (which in turn might be very very slow)
		3692	local $USE_FSYNC = 0;
		3693
2648	# use a peculiar iteration method to avoid tripping on perl	3694	# use a peculiar iteration method to avoid tripping on perl
2649	# refcount bugs in for. also avoids problems with players	3695	# refcount bugs in for. also avoids problems with players
2650	# and maps saved/destroyed asynchronously.	3696	# and maps saved/destroyed asynchronously.
2651	warn "begin emergency player save\n";	3697	warn "emergency_perl_save: begin player save\n";
2652	for my $login (keys %cf::PLAYER) {	3698	for my $login (keys %cf::PLAYER) {
2653	my $pl = $cf::PLAYER{$login} or next;	3699	my $pl = $cf::PLAYER{$login} or next;
2654	$pl->valid or next;	3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2655	$pl->save;	3702	$pl->save;
2656	}	3703	}
2657	warn "end emergency player save\n";	3704	warn "emergency_perl_save: end player save\n";
2658		3705
2659	warn "begin emergency map save\n";	3706	warn "emergency_perl_save: begin map save\n";
2660	for my $path (keys %cf::MAP) {	3707	for my $path (keys %cf::MAP) {
2661	my $map = $cf::MAP{$path} or next;	3708	my $map = $cf::MAP{$path} or next;
2662	$map->valid or next;	3709	$map->valid or next;
2663	$map->save;	3710	$map->save;
2664	}	3711	}
2665	warn "end emergency map save\n";	3712	warn "emergency_perl_save: end map save\n";
2666		3713
2667	warn "begin emergency database checkpoint\n";	3714	warn "emergency_perl_save: begin database checkpoint\n";
2668	BDB::db_env_txn_checkpoint $DB_ENV;	3715	BDB::db_env_txn_checkpoint $DB_ENV;
2669	warn "end emergency database checkpoint\n";	3716	warn "emergency_perl_save: end database checkpoint\n";
		3717
		3718	warn "emergency_perl_save: begin write uuid\n";
		3719	write_uuid_sync 1;
		3720	warn "emergency_perl_save: end write uuid\n";
2670	};	3721	};
2671		3722
		3723	warn "emergency_perl_save: starting sync()\n";
		3724	IO::AIO::aio_sync sub {
		3725	warn "emergency_perl_save: finished sync()\n";
		3726	};
		3727
2672	warn "leave emergency perl save\n";	3728	warn "emergency_perl_save: leave\n";
2673	}	3729	}
2674		3730
2675	sub post_cleanup {	3731	sub post_cleanup {
2676	my ($make_core) = @_;	3732	my ($make_core) = @_;
2677		3733
2678	warn Carp::longmess "post_cleanup backtrace"	3734	warn Carp::longmess "post_cleanup backtrace"
2679	if $make_core;	3735	if $make_core;
		3736
		3737	my $fh = pidfile;
		3738	unlink $PIDFILE if <$fh> == $$;
		3739	}
		3740
		3741	# a safer delete_package, copied from Symbol
		3742	sub clear_package($) {
		3743	my $pkg = shift;
		3744
		3745	# expand to full symbol table name if needed
		3746	unless ($pkg =~ /^main::.*::$/) {
		3747	$pkg = "main$pkg" if $pkg =~ /^::/;
		3748	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3749	$pkg .= '::' unless $pkg =~ /::$/;
		3750	}
		3751
		3752	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3753	my $stem_symtab = *{$stem}{HASH};
		3754
		3755	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3756	or return;
		3757
		3758	# clear all symbols
		3759	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3760	for my $name (keys %$leaf_symtab) {
		3761	_gv_clear *{"$pkg$name"};
		3762	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3763	}
		3764	warn "cleared package $pkg\n";#d#
2680	}	3765	}
2681		3766
2682	sub do_reload_perl() {	3767	sub do_reload_perl() {
2683	# can/must only be called in main	3768	# can/must only be called in main
2684	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
2685	warn "can only reload from main coroutine";	3770	warn "can only reload from main coroutine";
2686	return;	3771	return;
2687	}	3772	}
2688		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = AE::time;
		3777
		3778	while ($RELOAD) {
2689	warn "reloading...";	3779	warn "reloading...";
2690		3780
2691	warn "entering sync_job";	3781	warn "entering sync_job";
2692		3782
2693	cf::sync_job {	3783	cf::sync_job {
2694	cf::write_runtime; # external watchdog should not bark	3784	cf::write_runtime_sync; # external watchdog should not bark
2695	cf::emergency_save;	3785	cf::emergency_save;
2696	cf::write_runtime; # external watchdog should not bark	3786	cf::write_runtime_sync; # external watchdog should not bark
2697		3787
2698	warn "syncing database to disk";	3788	warn "syncing database to disk";
2699	BDB::db_env_txn_checkpoint $DB_ENV;	3789	BDB::db_env_txn_checkpoint $DB_ENV;
2700		3790
2701	# if anything goes wrong in here, we should simply crash as we already saved	3791	# if anything goes wrong in here, we should simply crash as we already saved
2702		3792
2703	warn "cancelling all WF_AUTOCANCEL watchers";
2704	for (Event::all_watchers) {
2705	$_->cancel if $_->data & WF_AUTOCANCEL;
2706	}
2707
2708	warn "flushing outstanding aio requests";	3793	warn "flushing outstanding aio requests";
2709	for (;;) {
2710	BDB::flush;
2711	IO::AIO::flush;
2712	Coro::cede;
2713	last unless IO::AIO::nreqs || BDB::nreqs;	3794	while (IO::AIO::nreqs || BDB::nreqs) {
2714	warn "iterate...";	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2715	}
2716
2717	++$RELOAD;
2718
2719	warn "cancelling all extension coros";
2720	$_->cancel for values %EXT_CORO;
2721	%EXT_CORO = ();
2722
2723	warn "removing commands";
2724	%COMMAND = ();
2725
2726	warn "removing ext commands";
2727	%EXTCMD = ();
2728
2729	warn "unloading/nuking all extensions";
2730	for my $pkg (@EXTS) {
2731	warn "... unloading $pkg";
2732
2733	if (my $cb = $pkg->can ("unload")) {
2734	eval {
2735	$cb->($pkg);
2736	1
2737	} or warn "$pkg unloaded, but with errors: $@";
2738	}	3796	}
2739		3797
2740	warn "... nuking $pkg";	3798	warn "cancelling all extension coros";
2741	Symbol::delete_package $pkg;	3799	$_->cancel for values %EXT_CORO;
2742	}	3800	%EXT_CORO = ();
2743		3801
2744	warn "unloading all perl modules loaded from $LIBDIR";	3802	warn "removing commands";
2745	while (my ($k, $v) = each %INC) {	3803	%COMMAND = ();
2746	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2747		3804
		3805	warn "removing ext/exti commands";
		3806	%EXTCMD = ();
		3807	%EXTICMD = ();
		3808
		3809	warn "unloading/nuking all extensions";
		3810	for my $pkg (@EXTS) {
2748	warn "... unloading $k";	3811	warn "... unloading $pkg";
2749	delete $INC{$k};
2750		3812
2751	$k =~ s/\.pm$//;
2752	$k =~ s/\//::/g;
2753
2754	if (my $cb = $k->can ("unload_module")) {	3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
2755	$cb->();	3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
2756	}	3822	}
2757		3823
2758	Symbol::delete_package $k;	3824	warn "unloading all perl modules loaded from $LIBDIR";
		3825	while (my ($k, $v) = each %INC) {
		3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3827
		3828	warn "... unloading $k";
		3829	delete $INC{$k};
		3830
		3831	$k =~ s/\.pm$//;
		3832	$k =~ s/\//::/g;
		3833
		3834	if (my $cb = $k->can ("unload_module")) {
		3835	$cb->();
		3836	}
		3837
		3838	clear_package $k;
2759	}	3839	}
2760		3840
2761	warn "getting rid of safe::, as good as possible";	3841	warn "getting rid of safe::, as good as possible";
2762	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
2763	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3843	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2764		3844
2765	warn "unloading cf.pm \"a bit\"";	3845	warn "unloading cf.pm \"a bit\"";
2766	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
2767	delete $INC{"cf/pod.pm"};	3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2768		3848
2769	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
2770	# and global variables created in xs	3850	# and global variables created in xs
2771	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
2772		3852
2773	warn "unload completed, starting to reload now";	3853	warn "unload completed, starting to reload now";
2774		3854
2775	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
2776	require cf;	3856	require cf;
2777	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
2778		3858
2779	warn "loading config and database again";	3859	warn "loading config and database again";
2780	cf::cfg_load;	3860	cf::reload_config;
2781		3861
2782	warn "loading extensions";	3862	warn "loading extensions";
2783	cf::load_extensions;	3863	cf::load_extensions;
2784		3864
		3865	if ($REATTACH_ON_RELOAD) {
2785	warn "reattaching attachments to objects/players";	3866	warn "reattaching attachments to objects/players";
2786	_global_reattach; # objects, sockets	3867	_global_reattach; # objects, sockets
2787	warn "reattaching attachments to maps";	3868	warn "reattaching attachments to maps";
2788	reattach $_ for values %MAP;	3869	reattach $_ for values %MAP;
2789	warn "reattaching attachments to players";	3870	warn "reattaching attachments to players";
2790	reattach $_ for values %PLAYER;	3871	reattach $_ for values %PLAYER;
		3872	}
2791		3873
		3874	warn "running post_init jobs";
		3875	(pop @POST_INIT)->(1) while @POST_INIT;
		3876
2792	warn "leaving sync_job";	3877	warn "leaving sync_job";
2793		3878
2794	1	3879	1
2795	} or do {	3880	} or do {
2796	warn $@;	3881	warn $@;
2797	warn "error while reloading, exiting.";	3882	cf::cleanup "error while reloading, exiting.";
2798	exit 1;
2799	};	3883	};
2800		3884
2801	warn "reloaded";	3885	warn "reloaded";
		3886	--$RELOAD;
		3887	}
		3888
		3889	$t1 = AE::time - $t1;
		3890	warn "reload completed in ${t1}s\n";
2802	};	3891	};
2803		3892
2804	our $RELOAD_WATCHER; # used only during reload	3893	our $RELOAD_WATCHER; # used only during reload
2805		3894
2806	sub reload_perl() {	3895	sub reload_perl() {
2807	# doing reload synchronously and two reloads happen back-to-back,	3896	# doing reload synchronously and two reloads happen back-to-back,
2808	# coro crashes during coro_state_free->destroy here.	3897	# coro crashes during coro_state_free->destroy here.
2809		3898
2810	$RELOAD_WATCHER ||= Event->timer (	3899	$RELOAD_WATCHER ||= cf::async {
2811	reentrant => 0,	3900	Coro::AIO::aio_wait cache_extensions;
2812	after => 0,	3901
2813	data => WF_AUTOCANCEL,	3902	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2814	cb => sub {
2815	do_reload_perl;	3903	do_reload_perl;
2816	undef $RELOAD_WATCHER;	3904	undef $RELOAD_WATCHER;
2817	},	3905	};
2818	);	3906	};
2819	}	3907	}
2820		3908
2821	register_command "reload" => sub {	3909	register_command "reload" => sub {
2822	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
2823		3911
2824	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
2825	$who->message ("reloading server.");	3913	$who->message ("reloading server.");
		3914	async {
		3915	$Coro::current->{desc} = "perl_reload";
2826	async { reload_perl };	3916	reload_perl;
		3917	};
2827	}	3918	}
2828	};	3919	};
2829		3920
2830	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
2831		3922
…		…
2833		3924
2834	our @WAIT_FOR_TICK;	3925	our @WAIT_FOR_TICK;
2835	our @WAIT_FOR_TICK_BEGIN;	3926	our @WAIT_FOR_TICK_BEGIN;
2836		3927
2837	sub wait_for_tick {	3928	sub wait_for_tick {
2838	return unless $TICK_WATCHER->is_active;
2839	return if $Coro::current == $Coro::main;	3929	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2840		3930
2841	my $signal = new Coro::Signal;	3931	my $signal = new Coro::Signal;
2842	push @WAIT_FOR_TICK, $signal;	3932	push @WAIT_FOR_TICK, $signal;
2843	$signal->wait;	3933	$signal->wait;
2844	}	3934	}
2845		3935
2846	sub wait_for_tick_begin {	3936	sub wait_for_tick_begin {
2847	return unless $TICK_WATCHER->is_active;
2848	return if $Coro::current == $Coro::main;	3937	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2849		3938
2850	my $signal = new Coro::Signal;	3939	my $signal = new Coro::Signal;
2851	push @WAIT_FOR_TICK_BEGIN, $signal;	3940	push @WAIT_FOR_TICK_BEGIN, $signal;
2852	$signal->wait;	3941	$signal->wait;
2853	}	3942	}
2854		3943
2855	my $min = 1e6;#d#	3944	sub tick {
2856	my $avg = 10;
2857	$TICK_WATCHER = Event->timer (
2858	reentrant => 0,
2859	parked => 1,
2860	prio => 0,
2861	at => $NEXT_TICK || $TICK,
2862	data => WF_AUTOCANCEL,
2863	cb => sub {
2864	if ($Coro::current != $Coro::main) {	3945	if ($Coro::current != $Coro::main) {
2865	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3946	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2866	unless ++$bug_warning > 10;	3947	unless ++$bug_warning > 10;
2867	return;	3948	return;
2868	}	3949	}
2869		3950
2870	$NOW = $tick_start = Event::time;
2871
2872	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2873		3952
2874	0 && sync_job {#d#	3953	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2875	for(1..10) {
2876	my $t = Event::time;
2877	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2878	or die;
2879		3954
2880	$map->width (50);	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2881	$map->height (50);	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2882	$map->alloc;	3957	Coro::async_pool {
2883	$map->_load_objects ("/tmp/x.map", 1);	3958	$Coro::current->{desc} = "runtime saver";
2884	my $t = Event::time - $t;	3959	write_runtime_sync
2885		3960	or warn "ERROR: unable to write runtime file: $!";
2886	#next unless $t < 0.0013;#d#
2887	if ($t < $min) {
2888	$min = $t;
2889	}
2890	$avg = $avg * 0.99 + $t * 0.01;
2891	}
2892	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2893	exit 0;
2894	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2895	};	3961	};
		3962	}
2896		3963
2897	$RUNTIME += $TICK;
2898	$NEXT_TICK += $TICK;
2899
2900	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2901	$NEXT_RUNTIME_WRITE = $NOW + 10;
2902	Coro::async_pool {
2903	write_runtime
2904	or warn "ERROR: unable to write runtime file: $!";
2905	};
2906	}
2907
2908	# my $AFTER = Event::time;
2909	# warn $AFTER - $NOW;#d#
2910
2911	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3964	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2912	$sig->send;	3965	$sig->send;
2913	}	3966	}
2914	while (my $sig = shift @WAIT_FOR_TICK) {	3967	while (my $sig = shift @WAIT_FOR_TICK) {
2915	$sig->send;	3968	$sig->send;
2916	}	3969	}
2917		3970
2918	$NOW = Event::time;	3971	$LOAD = ($NOW - $TICK_START) / $TICK;
2919
2920	# if we are delayed by four ticks or more, skip them all
2921	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2922
2923	$TICK_WATCHER->at ($NEXT_TICK);
2924	$TICK_WATCHER->start;
2925
2926	$LOAD = ($NOW - $tick_start) / $TICK;
2927	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3972	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2928		3973
2929	_post_tick;	3974	if (0) {
2930		3975	if ($NEXT_TICK) {
2931		3976	my $jitter = $TICK_START - $NEXT_TICK;
		3977	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3978	warn "jitter $JITTER\n";#d#
		3979	}
2932	},	3980	}
2933	);	3981	}
2934		3982
2935	{	3983	{
2936	BDB::max_poll_time $TICK * 0.1;	3984	# configure BDB
2937	$BDB_POLL_WATCHER = Event->io (	3985
2938	reentrant => 0,
2939	fd => BDB::poll_fileno,
2940	poll => 'r',
2941	prio => 0,
2942	data => WF_AUTOCANCEL,
2943	cb => \&BDB::poll_cb,
2944	);
2945	BDB::min_parallel 8;	3986	BDB::min_parallel 16;
2946		3987	BDB::max_poll_reqs $TICK * 0.1;
2947	BDB::set_sync_prepare {	3988	$AnyEvent::BDB::WATCHER->priority (1);
2948	my $status;
2949	my $current = $Coro::current;
2950	(
2951	sub {
2952	$status = $!;
2953	$current->ready; undef $current;
2954	},
2955	sub {
2956	Coro::schedule while defined $current;
2957	$! = $status;
2958	},
2959	)
2960	};
2961		3989
2962	unless ($DB_ENV) {	3990	unless ($DB_ENV) {
2963	$DB_ENV = BDB::db_env_create;	3991	$DB_ENV = BDB::db_env_create;
		3992	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3993	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3994	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3995	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3996	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2964		3997
2965	cf::sync_job {	3998	cf::sync_job {
2966	eval {	3999	eval {
2967	BDB::db_env_open	4000	BDB::db_env_open
2968	$DB_ENV,	4001	$DB_ENV,
…		…
2970	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4003	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2971	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4004	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2972	0666;	4005	0666;
2973		4006
2974	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4007	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2975
2976	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2977	$DB_ENV->set_lk_detect;
2978	};	4008	};
2979		4009
2980	cf::cleanup "db_env_open(db): $@" if $@;	4010	cf::cleanup "db_env_open(db): $@" if $@;
2981	};	4011	};
2982	}	4012	}
		4013
		4014	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4015	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4016	};
		4017	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4018	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4019	};
		4020	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4021	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4022	};
2983	}	4023	}
2984		4024
2985	{	4025	{
		4026	# configure IO::AIO
		4027
2986	IO::AIO::min_parallel 8;	4028	IO::AIO::min_parallel 8;
2987
2988	undef $Coro::AIO::WATCHER;
2989	IO::AIO::max_poll_time $TICK * 0.1;	4029	IO::AIO::max_poll_time $TICK * 0.1;
2990	$AIO_POLL_WATCHER = Event->io (	4030	undef $AnyEvent::AIO::WATCHER;
2991	reentrant => 0,
2992	data => WF_AUTOCANCEL,
2993	fd => IO::AIO::poll_fileno,
2994	poll => 'r',
2995	prio => 6,
2996	cb => \&IO::AIO::poll_cb,
2997	);
2998	}	4031	}
2999		4032
3000	my $_log_backtrace;	4033	my $_log_backtrace;
3001		4034
3002	sub _log_backtrace {	4035	sub _log_backtrace {
…		…
3005	$msg =~ s/\n//;	4038	$msg =~ s/\n//;
3006		4039
3007	# limit the # of concurrent backtraces	4040	# limit the # of concurrent backtraces
3008	if ($_log_backtrace < 2) {	4041	if ($_log_backtrace < 2) {
3009	++$_log_backtrace;	4042	++$_log_backtrace;
		4043	my $perl_bt = Carp::longmess $msg;
3010	async {	4044	async {
		4045	$Coro::current->{desc} = "abt $msg";
		4046
3011	my @bt = fork_call {	4047	my @bt = fork_call {
3012	@addr = map { sprintf "%x", $_ } @addr;	4048	@addr = map { sprintf "%x", $_ } @addr;
3013	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4049	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3014	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4050	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3015	or die "addr2line: $!";	4051	or die "addr2line: $!";
…		…
3023	}	4059	}
3024		4060
3025	@funcs	4061	@funcs
3026	};	4062	};
3027		4063
3028	LOG llevInfo, "[ABT] $msg\n";	4064	LOG llevInfo, "[ABT] $perl_bt\n";
		4065	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3029	LOG llevInfo, "[ABT] $_\n" for @bt;	4066	LOG llevInfo, "[ABT] $_\n" for @bt;
3030	--$_log_backtrace;	4067	--$_log_backtrace;
3031	};	4068	};
3032	} else {	4069	} else {
3033	LOG llevInfo, "[ABT] $msg\n";	4070	LOG llevInfo, "[ABT] $msg\n";
3034	LOG llevInfo, "[ABT] [suppressed]\n";	4071	LOG llevInfo, "[ABT] [suppressed]\n";
3035	}	4072	}
3036	}	4073	}
3037		4074
3038	# load additional modules	4075	# load additional modules
3039	use cf::pod;	4076	require "cf/$_.pm" for @EXTRA_MODULES;
		4077	cf::_connect_to_perl_2;
3040		4078
3041	END { cf::emergency_save }	4079	END { cf::emergency_save }
3042		4080
3043	1	4081	1
3044		4082

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