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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.256 by root, Sat Apr 21 16:56:32 2007 UTC vs.
Revision 1.480 by root, Thu Oct 8 05:09:43 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
		93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
59		95
60	our $CONFDIR = confdir;	96	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	97	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	98	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	99	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	100	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	101	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	105	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
71		111
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	114	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	119	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
82		123
83	our %CFG;	124	our %CFG;
84		125
85	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
87		129
88	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
91		133
92	# used to convert map paths into valid unix filenames by replacing / by ∕	134	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
		146
95	binmode STDOUT;	147	binmode STDOUT;
96	binmode STDERR;	148	binmode STDERR;
97		149
98	# read virtual server time, if available	150	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	152	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
103	}	155	}
		156
		157	eval "sub TICK() { $TICK } 1" or die;
104		158
105	mkdir $_	159	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		161
108	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
109		163
110	sub cf::map::normalise;	164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
		173
		174	# this is decidedly evil
		175	$REFLECT{object}{flags} = [grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"}];
111		176
112	#############################################################################	177	#############################################################################
113		178
114	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
115		180
…		…
139		204
140	=item $cf::TICK	205	=item $cf::TICK
141		206
142	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
143		208
		209	=item $cf::LOADAVG
		210
		211	The current CPU load on the server (alpha-smoothed), as a value between 0
		212	(none) and 1 (overloaded), indicating how much time is spent on processing
		213	objects per tick. Healthy values are < 0.5.
		214
		215	=item $cf::LOAD
		216
		217	The raw value load value from the last tick.
		218
144	=item %cf::CFG	219	=item %cf::CFG
145		220
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	222	from wherever your confdir points to.
148		223
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	224	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		225
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	226	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	227	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	228	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		229
		230	=item @cf::INVOKE_RESULTS
		231
		232	This array contains the results of the last C<invoke ()> call. When
		233	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		234	that call.
		235
		236	=item %cf::REFLECT
		237
		238	Contains, for each (C++) class name, a hash reference with information
		239	about object members (methods, scalars, arrays and flags) and other
		240	metadata, which is useful for introspection.
		241
155	=back	242	=back
156		243
157	=cut	244	=cut
158		245
159	BEGIN {	246	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	247	my $msg = join "", @_;
162		248
163	$msg .= "\n"	249	$msg .= "\n"
164	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
165		251
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		253
168	utf8::encode $msg;
169	LOG llevError, $msg;	254	LOG llevError, $msg;
170	};	255	};
171	}	256
		257	$Coro::State::DIEHOOK = sub {
		258	return unless $^S eq 0; # "eq", not "=="
		259
		260	warn Carp::longmess $_[0];
		261
		262	if ($Coro::current == $Coro::main) {#d#
		263	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		264	return;#d#
		265	}#d#
		266
		267	# kill coroutine otherwise
		268	Coro::terminate
		269	};
172		270
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	275	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		276	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	277	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		278
180	# we bless all objects into (empty) derived classes to force a method lookup	279	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	280	# within the Safe compartment.
182	for my $pkg (qw(	281	for my $pkg (qw(
183	cf::global cf::attachable	282	cf::global cf::attachable
184	cf::object cf::object::player	283	cf::object cf::object::player
185	cf::client cf::player	284	cf::client cf::player
186	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
187	cf::map cf::party cf::region	287	cf::party cf::region
188	)) {	288	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	290	}
192		291
193	$Event::DIED = sub {	292	$EV::DIED = sub {
194	warn "error in event callback: @_";	293	warn "error in event callback: @_";
195	};	294	};
		295
		296	#############################################################################
196		297
197	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
198		299
199	=over 4	300	=over 4
200		301
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	320	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	321	$d
221	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
222	}	323	}
223		324
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
227		326
228	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
229		328
230	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
231		330
232	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
233		332
		333	=cut
		334
		335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		336
		337	sub encode_json($) { $json_coder->encode ($_[0]) }
		338	sub decode_json($) { $json_coder->decode ($_[0]) }
		339
		340	=item cf::post_init { BLOCK }
		341
		342	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		343	but I<before> the server starts ticking again.
		344
		345	The cdoeblock will have a single boolean argument to indicate whether this
		346	is a reload or not.
		347
		348	=cut
		349
		350	sub post_init(&) {
		351	push @POST_INIT, shift;
		352	}
		353
234	=item cf::lock_wait $string	354	=item cf::lock_wait $string
235		355
236	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
237		357
238	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
239		359
240	Wait until the given lock is available and then acquires it and returns	360	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	361	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
243	returned.	363	returned.
244		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
245	Lock names should begin with a unique identifier (for example, cf::map::find	368	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
247		370
248	=item $locked = cf::lock_active $string	371	=item $locked = cf::lock_active $string
249		372
250	Return true if the lock is currently active, i.e. somebody has locked it.	373	Return true if the lock is currently active, i.e. somebody has locked it.
251		374
252	=cut	375	=cut
253		376
254	our %LOCK;	377	our $LOCKS = new Coro::SemaphoreSet;
255		378
256	sub lock_wait($) {	379	sub lock_wait($) {
257	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	381	}
265		382
266	sub lock_acquire($) {	383	sub lock_acquire($) {
267	my ($key) = @_;	384	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	385	}
279		386
280	sub lock_active($) {	387	sub lock_active($) {
281	my ($key) = @_;	388	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	389	}
285		390
286	sub freeze_mainloop {	391	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
288		393
289	my $guard = Coro::guard {	394	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	395	}
		396
		397	=item cf::periodic $interval, $cb
		398
		399	Like EV::periodic, but randomly selects a starting point so that the actions
		400	get spread over timer.
		401
		402	=cut
		403
		404	sub periodic($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
291	};	455	}
292	$TICK_WATCHER->stop;	456	};
293	$guard	457
		458	sub get_slot($;$$) {
		459	return if tick_inhibit || $Coro::current == $Coro::main;
		460
		461	my ($time, $pri, $name) = @_;
		462
		463	$time = $TICK * .6 if $time > $TICK * .6;
		464	my $sig = new Coro::Signal;
		465
		466	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		467	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		468	$SLOT_QUEUE->ready;
		469	$sig->wait;
294	}	470	}
295		471
296	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
297		473
298	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		479
304	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
305		481
306	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
307		483
308	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
311		488
312	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
315	fast or be very important.	492	fast or be very important.
…		…
318		495
319	sub sync_job(&) {	496	sub sync_job(&) {
320	my ($job) = @_;	497	my ($job) = @_;
321		498
322	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
323	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
325		504
326	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	506
328	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
329		508
330	my $busy = 1;	509	my $busy = 1;
331	my @res;	510	my @res;
332		511
333	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	514	@res = eval { $job->() };
335	warn $@ if $@;	515	warn $@ if $@;
336	undef $busy;	516	undef $busy;
337	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
338		518
339	while ($busy) {	519	while ($busy) {
340	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
341	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
342		530
343	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
344	} else {	532	} else {
345	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
346		534
…		…
366	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
367		555
368	$coro	556	$coro
369	}	557	}
370		558
371	sub write_runtime {	559	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		560
374	my $runtime = "$LOCALDIR/runtime";	561	Executes the given code block with the given arguments in a seperate
		562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
375		565
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	566	=cut
377	or return;
378		567
379	my $value = $cf::RUNTIME + 90 + 10;	568	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	569	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		570
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	571	# we seemingly have to make a local copy of the whole thing,
384	and return;	572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
385		574
386	# always fsync - this file is important	575	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	576	reset_signals;
388	and return;	577	&$cb
		578	}, @args;
389		579
390	close $fh	580	wantarray ? @res : $res[-1]
391	or return;	581	}
392		582
393	aio_rename "$runtime~", $runtime	583	=item $coin = coin_from_name $name
394	and return;
395		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
396	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		663	BDB::dbreq_pri 4;
		664	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		665	}
		666
		667	=item cf::cache $id => [$paths...], $processversion => $process
		668
		669	Generic caching function that returns the value of the resource $id,
		670	caching and regenerating as required.
		671
		672	This function can block.
		673
		674	=cut
		675
		676	sub cache {
		677	my ($id, $src, $processversion, $process) = @_;
		678
		679	my $meta =
		680	join "\x00",
		681	$processversion,
		682	map {
		683	aio_stat $_
		684	and Carp::croak "$_: $!";
		685
		686	($_, (stat _)[7,9])
		687	} @$src;
		688
		689	my $dbmeta = db_get cache => "$id/meta";
		690	if ($dbmeta ne $meta) {
		691	# changed, we may need to process
		692
		693	my @data;
		694	my $md5;
		695
		696	for (0 .. $#$src) {
		697	0 <= aio_load $src->[$_], $data[$_]
		698	or Carp::croak "$src->[$_]: $!";
		699	}
		700
		701	# if processing is expensive, check
		702	# checksum first
		703	if (1) {
		704	$md5 =
		705	join "\x00",
		706	$processversion,
		707	map {
		708	cf::cede_to_tick;
		709	($src->[$_], Digest::MD5::md5_hex $data[$_])
		710	} 0.. $#$src;
		711
		712
		713	my $dbmd5 = db_get cache => "$id/md5";
		714	if ($dbmd5 eq $md5) {
		715	db_put cache => "$id/meta", $meta;
		716
		717	return db_get cache => "$id/data";
		718	}
		719	}
		720
		721	my $t1 = Time::HiRes::time;
		722	my $data = $process->(\@data);
		723	my $t2 = Time::HiRes::time;
		724
		725	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		726
		727	db_put cache => "$id/data", $data;
		728	db_put cache => "$id/md5" , $md5;
		729	db_put cache => "$id/meta", $meta;
		730
		731	return $data;
		732	}
		733
		734	db_get cache => "$id/data"
397	}	735	}
398		736
399	=item cf::datalog type => key => value, ...	737	=item cf::datalog type => key => value, ...
400		738
401	Log a datalog packet of the given type with the given key-value pairs.	739	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		751
414	#############################################################################	752	#############################################################################
415		753
416	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
417		755
418	Many objects in crossfire are so-called attachable objects. That means you can	756	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	757	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
421		759
422	In the following description, CLASS can be any of C<global>, C<object>	760	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	761	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	762	Deliantra).
425		763
426	=over 4	764	=over 4
427		765
428	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
429		767
…		…
473	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
474		812
475	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
477		815
478	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	817	that are attached at load/instantiate time, thus the need for a name.
480		818
481	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
482		820
483	=over 4	821	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
593		931
594	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		936
599	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	938	my $pkg = shift @arg;
601		939
602	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
632	}	970	}
633		971
634	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
635	} else {	973	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	975	}
638		976
639	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
640	}	978	}
641		979
…		…
643	if (ref $_[0]) {	981	if (ref $_[0]) {
644	_object_attach @_;	982	_object_attach @_;
645	} else {	983	} else {
646	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
647	}	985	}
		986	_recalc_want;
648	};	987	};
649		988
650	# all those should be optimised	989	# all those should be optimised
651	sub cf::attachable::detach {	990	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
656	reattach ($obj);	995	reattach ($obj);
657	} else {	996	} else {
658	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
659	}	998	}
		999	_recalc_want;
660	};	1000	};
661		1001
662	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
664		1004
…		…
679	";	1019	";
680	die if $@;	1020	die if $@;
681	}	1021	}
682		1022
683	our $override;	1023	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1024	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1025
686	sub override {	1026	sub override {
687	$override = 1;	1027	$override = 1;
688	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
689	}	1029	}
690		1030
691	sub do_invoke {	1031	sub do_invoke {
692	my $event = shift;	1032	my $event = shift;
693	my $callbacks = shift;	1033	my $callbacks = shift;
694		1034
695	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
696		1036
697	local $override;	1037	local $override;
698		1038
699	for (@$callbacks) {	1039	for (@$callbacks) {
700	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
709	}	1049	}
710		1050
711	0	1051	0
712	}	1052	}
713		1053
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1055
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1057
718	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
719		1059
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1060	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1061	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1063
724	=back	1064	=back
725		1065
726	=cut	1066	=cut
727		1067
728	#############################################################################	1068	#############################################################################
729	# object support	1069	# object support
		1070
		1071	sub _object_equal($$);
		1072	sub _object_equal($$) {
		1073	my ($a, $b) = @_;
		1074
		1075	return 0 unless (ref $a) eq (ref $b);
		1076
		1077	if ("HASH" eq ref $a) {
		1078	my @ka = keys %$a;
		1079	my @kb = keys %$b;
		1080
		1081	return 0 if @ka != @kb;
		1082
		1083	for (0 .. $#ka) {
		1084	return 0 unless $ka[$_] eq $kb[$_];
		1085	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1086	}
		1087
		1088	} elsif ("ARRAY" eq ref $a) {
		1089
		1090	return 0 if @$a != @$b;
		1091
		1092	for (0 .. $#$a) {
		1093	return 0 unless _object_equal $a->[$_], $b->[$_];
		1094	}
		1095
		1096	} elsif ($a ne $b) {
		1097	return 0;
		1098	}
		1099
		1100	1
		1101	}
		1102
		1103	our $SLOW_MERGES;#d#
		1104	sub _can_merge {
		1105	my ($ob1, $ob2) = @_;
		1106
		1107	++$SLOW_MERGES;#d#
		1108
		1109	# we do the slow way here
		1110	return _object_equal $ob1, $ob2
		1111	}
730		1112
731	sub reattach {	1113	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1115	my ($obj) = @_;
734		1116
		1117	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1119
737	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
738		1121
739	@$registry = ();	1122	@$registry = ();
740		1123
…		…
755	cf::attachable->attach (	1138	cf::attachable->attach (
756	prio => -1000000,	1139	prio => -1000000,
757	on_instantiate => sub {	1140	on_instantiate => sub {
758	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
759		1142
760	$data = from_json $data;	1143	$data = decode_json $data;
761		1144
762	for (@$data) {	1145	for (@$data) {
763	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
764		1147
765	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1164	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
783		1166
784	sync_job {	1167	sync_job {
785	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
788		1172
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1176	if ($cf::USE_FSYNC) {
		1177	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1178	aio_fsync $fh;
		1179	}
793	close $fh;	1180	aio_close $fh;
794		1181
795	if (@$objs) {	1182	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1183	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1189	aio_fsync $fh;
		1190	}
801	close $fh;	1191	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
803	}	1193	}
804	} else {	1194	} else {
805	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
806	}	1196	}
807		1197
808	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1202	} else {
810	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
811	}	1204	}
812	} else {	1205	} else {
813	aio_unlink $filename;	1206	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
815	}	1208	}
816	}	1209	};
817	}	1210	}
818		1211
819	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
821		1214
…		…
833	or return;	1226	or return;
834		1227
835	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
837	or return;	1230	or return;
		1231
838	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
839	}	1234	}
840		1235
		1236	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
843	return ($data, $av);	1240	($data, $av)
844	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
845		1248
846	#############################################################################	1249	#############################################################################
847	# command handling &c	1250	# command handling &c
848		1251
849	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1266	}
864		1267
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1269
867	Register a callbackf ro execution when the client sends an extcmd packet.	1270	Register a callback for execution when the client sends an (synchronous)
		1271	extcmd packet. Ext commands will be processed in the order they are
		1272	received by the server, like other user commands. The first argument is
		1273	the logged-in player. Ext commands can only be processed after a player
		1274	has logged in successfully.
868		1275
869	If the callback returns something, it is sent back as if reply was being	1276	If the callback returns something, it is sent back as if reply was being
870	called.	1277	called.
871		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
872	=cut	1290	=cut
873		1291
874	sub register_extcmd {	1292	sub register_extcmd {
875	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
876		1294
877	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
878	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
879		1305
880	cf::player->attach (	1306	cf::player->attach (
881	on_command => sub {	1307	on_command => sub {
882	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
883		1309
…		…
891	cf::override;	1317	cf::override;
892	},	1318	},
893	on_extcmd => sub {	1319	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
895		1321
896	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1323
898	if (ref $msg) {	1324	if (ref $msg) {
		1325	my ($type, $reply, @payload) =
		1326	"ARRAY" eq ref $msg
		1327	? @$msg
		1328	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1329
		1330	my @reply;
		1331
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
904	} else {	1339	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1341	}
907		1342
908	cf::override;	1343	cf::override;
909	},	1344	},
910	);	1345	);
911		1346
		1347	# "readahead" all extensions
912	sub load_extension {	1348	sub cache_extensions {
913	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
914		1350
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1354	}
940	die $@;
941	}	1355	};
942		1356
943	push @EXTS, $pkg;	1357	$grp
944	}	1358	}
945		1359
946	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
947	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1365	next unless -r $path;
949	eval {	1366
950	load_extension $ext;	1367	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1368	my $base = $1;
		1369	my $pkg = $1;
		1370	$pkg =~ s/[^[:word:]]/_/g;
		1371	$pkg = "ext::$pkg";
		1372
		1373	open my $fh, "<:utf8", $path
		1374	or die "$path: $!";
		1375
		1376	my $source = do { local $/; <$fh> };
		1377
		1378	my %ext = (
		1379	path => $path,
		1380	base => $base,
		1381	pkg => $pkg,
		1382	);
		1383
		1384	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1385	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1386
		1387	$ext{source} =
		1388	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1389	. "#line 1 \"$path\"\n{\n"
		1390	. $source
		1391	. "\n};\n1";
		1392
		1393	$todo{$base} = \%ext;
		1394	}
		1395
		1396	my %done;
		1397	while (%todo) {
		1398	my $progress;
		1399
		1400	while (my ($k, $v) = each %todo) {
		1401	for (split /,\s*/, $v->{meta}{depends}) {
		1402	goto skip
		1403	unless exists $done{$_};
		1404	}
		1405
		1406	warn "... loading '$k' into '$v->{pkg}'\n";
		1407
		1408	unless (eval $v->{source}) {
		1409	my $msg = $@ ? "$v->{path}: $@\n"
		1410	: "$v->{base}: extension inactive.\n";
		1411
		1412	if (exists $v->{meta}{mandatory}) {
		1413	warn $msg;
		1414	cf::cleanup "mandatory extension failed to load, exiting.";
		1415	}
		1416
		1417	warn $msg;
		1418	}
		1419
		1420	$done{$k} = delete $todo{$k};
		1421	push @EXTS, $v->{pkg};
		1422	$progress = 1;
951	1	1423	}
952	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
953	}	1429	};
954	}	1430	}
955		1431
956	#############################################################################	1432	#############################################################################
957		1433
		1434	=back
		1435
958	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
959		1437
960	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
961		1439
962	=cut	1440	=cut
963		1441
964	package cf::player;	1442	package cf::player;
965		1443
966	use Coro::AIO;	1444	use Coro::AIO;
967		1445
968	=head3 cf::player	1446	=head3 cf::player
969		1447
970	=over 4	1448	=over 4
		1449
		1450	=item cf::player::num_playing
		1451
		1452	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1453
		1454	=cut
		1455
		1456	sub num_playing {
		1457	scalar grep
		1458	$_->ob->map
		1459	&& !$_->hidden
		1460	&& !$_->ob->flag (cf::FLAG_WIZ),
		1461	cf::player::list
		1462	}
971		1463
972	=item cf::player::find $login	1464	=item cf::player::find $login
973		1465
974	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
975		1467
…		…
994		1486
995	sub exists($) {	1487	sub exists($) {
996	my ($login) = @_;	1488	my ($login) = @_;
997		1489
998	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1491	or !aio_stat path $login
1000	}	1492	}
1001		1493
1002	sub find($) {	1494	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1496	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1503	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1504	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1505	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1506	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1507
1016	my $pl = load_pl path $login	1508	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1509	or return;
		1510
		1511	my $pl = cf::player::load_pl $f
		1512	or return;
		1513
		1514	local $cf::PLAYER_LOADING{$login} = $pl;
		1515	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
1019	}	1517	}
1020	}	1518	}
1021	}	1519	}
1022		1520
…		…
1031	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
1032		1530
1033	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
1035		1533
		1534	cf::get_slot 0.01;
		1535
1036	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
1037	Coro::cede;	1537	cf::cede_to_tick;
1038	}	1538	}
1039		1539
1040	sub new($) {	1540	sub new($) {
1041	my ($login) = @_;	1541	my ($login) = @_;
1042		1542
…		…
1048	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1049		1549
1050	$self	1550	$self
1051	}	1551	}
1052		1552
		1553	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1554
		1555	=cut
		1556
		1557	sub send_msg {
		1558	my $ns = shift->ns
		1559	or return;
		1560	$ns->send_msg (@_);
		1561	}
		1562
1053	=item $pl->quit_character	1563	=item $pl->quit_character
1054		1564
1055	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1057		1567
…		…
1061	my ($pl) = @_;	1571	my ($pl) = @_;
1062		1572
1063	my $name = $pl->ob->name;	1573	my $name = $pl->ob->name;
1064		1574
1065	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1576	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1577
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1072		1584
1073	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1622	or return [];
1111		1623
1112	my @logins;	1624	my @logins;
1113		1625
1114	for my $login (@$dirs) {	1626	for my $login (@$dirs) {
		1627	my $path = path $login;
		1628
		1629	# a .pst is a dead give-away for a valid player
		1630	# if no pst file found, open and chekc for blocked users
		1631	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1118		1636
1119	utf8::decode $login;	1637	utf8::decode $login;
1120	push @logins, $login;	1638	push @logins, $login;
1121	}	1639	}
1122		1640
…		…
1149	}	1667	}
1150		1668
1151	\@paths	1669	\@paths
1152	}	1670	}
1153		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1154	=item $player->ext_reply ($msgid, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1155		1677
1156	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1157		1679
1158	=cut	1680	=cut
1159		1681
1160	sub ext_reply($$%) {	1682	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1162		1684
1163	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1686	}
1167		1687
1168	=item $player->ext_event ($type, %msg)	1688	=item $player->ext_msg ($type, @msg)
1169		1689
1170	Sends an ext event to the client.	1690	Sends an ext event to the client.
1171		1691
1172	=cut	1692	=cut
1173		1693
1174	sub ext_event($$%) {	1694	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1695	my ($self, $type, @msg) = @_;
1176		1696
1177	$self->ns->ext_event ($type, %msg);	1697	$self->ns->ext_msg ($type, @msg);
1178	}	1698	}
1179		1699
1180	=head3 cf::region	1700	=head3 cf::region
1181		1701
1182	=over 4	1702	=over 4
…		…
1185		1705
1186	package cf::region;	1706	package cf::region;
1187		1707
1188	=item cf::region::find_by_path $path	1708	=item cf::region::find_by_path $path
1189		1709
1190	Tries to decuce the probable region for a map knowing only its path.	1710	Tries to decuce the likely region for a map knowing only its path.
1191		1711
1192	=cut	1712	=cut
1193		1713
1194	sub find_by_path($) {	1714	sub find_by_path($) {
1195	my ($path) = @_;	1715	my ($path) = @_;
1196		1716
1197	my ($match, $specificity);	1717	my ($match, $specificity);
1198		1718
1199	for my $region (list) {	1719	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1720	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1721	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1722	if $region->specificity > $specificity;
1203	}	1723	}
1204	}	1724	}
1205		1725
…		…
1226	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1228		1748
1229	sub generate_random_map {	1749	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1753
1231	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1755	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1792	my ($self, $merge) = @_;
1270		1793
1271	# we have to keep some variables in memory intact	1794	# we have to keep some variables in memory intact
1272	local $self->{path};	1795	local $self->{path};
1273	local $self->{load_path};	1796	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1797
1277	$self->SUPER::thawer_merge ($merge);	1798	$self->SUPER::thawer_merge ($merge);
1278	}	1799	}
1279		1800
1280	sub normalise {	1801	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1328	return $self;	1849	return $self;
1329	}	1850	}
1330	}	1851	}
1331		1852
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1854	()
1334	}	1855	}
1335		1856
1336	sub init {	1857	sub init {
1337	my ($self) = @_;	1858	my ($self) = @_;
…		…
1359		1880
1360	# the temporary/swap location	1881	# the temporary/swap location
1361	sub save_path {	1882	sub save_path {
1362	my ($self) = @_;	1883	my ($self) = @_;
1363		1884
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1886	"$TMPDIR/$path.map"
1366	}	1887	}
1367		1888
1368	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1369	sub uniq_path {	1890	sub uniq_path {
1370	my ($self) = @_;	1891	my ($self) = @_;
1371		1892
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1894	"$UNIQUEDIR/$path"
1374	}	1895	}
1375		1896
1376	# and all this just because we cannot iterate over	1897	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1898	my ($self) = @_;
1380		1899
1381	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1383	}	1903	}
1384		1904
1385	sub unlink_save {	1905	sub unlink_save {
1386	my ($self) = @_;	1906	my ($self) = @_;
1387		1907
…		…
1392		1912
1393	sub load_header_from($) {	1913	sub load_header_from($) {
1394	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1395		1915
1396	utf8::encode $path;	1916	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1918	or return;
		1919
		1920	$self->_load_header ($f)
		1921	or return;
		1922
		1923	local $MAP_LOADING{$self->{path}} = $self;
		1924	$f->resolve_delayed_derefs;
1402		1925
1403	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1404		1927
1405	1	1928	1
1406	}	1929	}
…		…
1445	$self->load_header_orig	1968	$self->load_header_orig
1446	or return;	1969	or return;
1447	$self->prepare_orig;	1970	$self->prepare_orig;
1448	}	1971	}
1449		1972
		1973	$self->{deny_reset} = 1
		1974	if $self->no_reset;
		1975
1450	$self->default_region (cf::region::find_by_path $self->{path})	1976	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1977	unless $self->default_region;
1452		1978
1453	1	1979	1
1454	}	1980	}
…		…
1457	sub find {	1983	sub find {
1458	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1459		1985
1460	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1461		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1990
1464	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1467	or return;	1993	or return;
1468		1994
1469	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1470		1996
1471	$map->load_header	1997	$map->load_header
1472	or return;	1998	or return;
1473		1999
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1477	$map->reset;	2005	$map->reset;
1478	undef $guard;
1479	return find $path;	2006	return find $path;
1480	}	2007	}
1481		2008
1482	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1483	}	2010	}
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	2019	local $self->{deny_reset} = 1; # loading can take a long time
1493		2020
1494	my $path = $self->{path};	2021	my $path = $self->{path};
1495		2022
1496	{	2023	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1498		2025
		2026	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2028
1501	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1502		2030
1503	$self->alloc;	2031	$self->alloc;
1504		2032
1505	$self->pre_load;	2033	$self->pre_load;
1506	Coro::cede;	2034	cf::cede_to_tick;
1507		2035
		2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2038	$self->_load_objects ($f)
1509	or return;	2039	or return;
1510		2040
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1512	if delete $self->{load_original};	2042	if delete $self->{load_original};
1513		2043
1514	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2045	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2048	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1519	}	2052	}
1520	}	2053	}
1521		2054
1522	Coro::cede;	2055	$f->resolve_delayed_derefs;
		2056
		2057	cf::cede_to_tick;
1523	# now do the right thing for maps	2058	# now do the right thing for maps
1524	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2061	unless $self->difficulty;
1527	Coro::cede;	2062	cf::cede_to_tick;
1528		2063
1529	unless ($self->{deny_activate}) {	2064	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2065	$self->decay_objects;
1531	$self->fix_auto_apply;	2066	$self->fix_auto_apply;
1532	$self->update_buttons;	2067	$self->update_buttons;
1533	Coro::cede;	2068	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2069	$self->activate;
1537	}	2070	}
1538		2071
		2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
		2074
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2075	$self->in_memory (cf::MAP_ACTIVE);
1540
1541	undef $guard;
1542	}	2076	}
1543		2077
1544	$self->post_load;	2078	$self->post_load;
1545	}	2079	}
1546		2080
…		…
1548	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1549		2083
1550	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1551	if $self->per_player;	2085	if $self->per_player;
1552		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1553	$self	2090	$self
1554	}	2091	}
1555		2092
1556	# find and load all maps in the 3x3 area around a map	2093	# find and load all maps in the 3x3 area around a map
1557	sub load_diag {	2094	sub load_neighbours {
1558	my ($map) = @_;	2095	my ($map) = @_;
1559		2096
1560	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1561		2098
1562	for (0 .. 3) {	2099	for (0 .. 3) {
1563	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1564	or next;	2101	or next;
1565	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1566	or next;	2103	or next;
1567	$neigh->load;	2104	$neigh->load;
1568		2105
		2106	push @neigh,
1569	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1570	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1571	}	2109	}
1572		2110
1573	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1574	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1575	or next;	2114	or next;
1576	$neigh->load;	2115	$neigh->load;
1577	}	2116	}
1578	}	2117	}
1579		2118
…		…
1584	}	2123	}
1585		2124
1586	sub do_load_sync {	2125	sub do_load_sync {
1587	my ($map) = @_;	2126	my ($map) = @_;
1588		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1589	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1590	}	2132	}
1591		2133
1592	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1593	our $MAP_PREFETCHER = undef;	2135	our $MAP_PREFETCHER = undef;
1594		2136
1595	sub find_async {	2137	sub find_async {
1596	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1597		2139
1598	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1599		2141
1600	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1601	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1602	}	2144	}
1603		2145
1604	undef $MAP_PREFETCH{$path};	2146	$MAP_PREFETCH{$path} |= $load;
		2147
1605	$MAP_PREFETCHER ||= cf::async {	2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
1606	while (%MAP_PREFETCH) {	2151	while (%MAP_PREFETCH) {
1607	for my $path (keys %MAP_PREFETCH) {	2152	while (my ($k, $v) = each %MAP_PREFETCH) {
1608	my $map = find $path	2153	if (my $map = find $k) {
1609	or next;
1610	$map->load;	2154	$map->load if $v;
		2155	}
1611		2156
1612	delete $MAP_PREFETCH{$path};	2157	delete $MAP_PREFETCH{$k};
1613	}	2158	}
1614	}	2159	}
1615	undef $MAP_PREFETCHER;	2160	undef $MAP_PREFETCHER;
1616	};	2161	};
1617	$MAP_PREFETCHER->prio (6);	2162	$MAP_PREFETCHER->prio (6);
…		…
1620	}	2165	}
1621		2166
1622	sub save {	2167	sub save {
1623	my ($self) = @_;	2168	my ($self) = @_;
1624		2169
1625	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1626		2171
1627	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1628		2173
1629	return unless $self->dirty;	2174	return unless $self->dirty;
1630		2175
…		…
1636	return if $self->{deny_save};	2181	return if $self->{deny_save};
1637		2182
1638	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1639		2184
1640	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1641	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1642	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1643		2191
1644	if ($uniq) {	2192	if ($uniq) {
1645	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1646	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1647	} else {	2195	} else {
…		…
1653	my ($self) = @_;	2201	my ($self) = @_;
1654		2202
1655	# save first because save cedes	2203	# save first because save cedes
1656	$self->save;	2204	$self->save;
1657		2205
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2207
1660	return if $self->players;	2208	return if $self->players;
1661	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1662	return if $self->{deny_save};	2210	return if $self->{deny_save};
1663		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1664	$self->clear;	2216	$self->clear;
1665	$self->in_memory (cf::MAP_SWAPPED);
1666	}	2217	}
1667		2218
1668	sub reset_at {	2219	sub reset_at {
1669	my ($self) = @_;	2220	my ($self) = @_;
1670		2221
1671	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1672	return 1e99 if $self->isa ("ext::map_per_player");#d#
1673	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1674		2224
1675	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1676	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1677		2227
…		…
1688	my ($self) = @_;	2238	my ($self) = @_;
1689		2239
1690	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1691		2241
1692	return if $self->players;	2242	return if $self->players;
1693	return if $self->isa ("ext::map_per_player");#d#
1694		2243
1695	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
1696		2245
1697	$self->in_memory (cf::MAP_SWAPPED);	2246	$self->in_memory (cf::MAP_SWAPPED);
1698		2247
1699	# need to save uniques path	2248	# need to save uniques path
1700	unless ($self->{deny_save}) {	2249	unless ($self->{deny_save}) {
…		…
1704	if $uniq;	2253	if $uniq;
1705	}	2254	}
1706		2255
1707	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1708		2257
		2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1709	$self->clear;	2260	$self->clear;
1710
1711	$_->clear_links_to ($self) for values %cf::MAP;
1712		2261
1713	$self->unlink_save;	2262	$self->unlink_save;
1714	$self->destroy;	2263	$self->destroy;
1715	}	2264	}
1716		2265
1717	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1718		2267
1719	sub nuke {	2268	sub nuke {
1720	my ($self) = @_;	2269	my ($self) = @_;
1721		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1722	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1723		2275
1724	$self->unlink_save;	2276	$self->unlink_save;
1725		2277
1726	bless $self, "cf::map";	2278	bless $self, "cf::map";
1727	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1728	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1729	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1730	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1731		2283
1732	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1733		2286
1734	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
		2288	}
		2289
		2290	=item $maps = cf::map::tmp_maps
		2291
		2292	Returns an arrayref with all map paths of currently instantiated and saved
		2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
		2298	[
		2299	map {
		2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
		2306	}
		2307
		2308	=item $maps = cf::map::random_maps
		2309
		2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
		2312
		2313	=cut
		2314
		2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
1735	}	2324	}
1736		2325
1737	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1738		2327
1739	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1740	instantiated unique items. May block.	2329	instantiated unique items. May block.
1741		2330
1742	=cut	2331	=cut
1743		2332
1744	sub unique_maps() {	2333	sub unique_maps() {
1745	my $files = aio_readdir $UNIQUEDIR	2334	[
1746	or return;	2335	map {
1747
1748	my @paths;
1749
1750	for (@$files) {
1751	utf8::decode $_;	2336	utf8::decode $_;
1752	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1753	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1754		2339	? ()
1755	push @paths, cf::map::normalise $_;	2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
1756	}	2342	]
1757
1758	\@paths
1759	}	2343	}
1760
1761	package cf;
1762		2344
1763	=back	2345	=back
1764		2346
1765	=head3 cf::object	2347	=head3 cf::object
1766		2348
…		…
1770		2352
1771	=over 4	2353	=over 4
1772		2354
1773	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1774		2356
1775	Returns the inventory of the object _and_ their inventories, recursively.	2357	Returns the inventory of the object I<and> their inventories, recursively,
		2358	but I<not> the object itself.
1776		2359
1777	=cut	2360	=cut
1778		2361
1779	sub inv_recursive_;	2362	sub inv_recursive_;
1780	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1783		2366
1784	sub inv_recursive {	2367	sub inv_recursive {
1785	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1786	}	2369	}
1787		2370
		2371	=item $ref = $ob->ref
		2372
		2373	Creates and returns a persistent reference to an object that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
		2396	}
		2397	}
		2398
1788	package cf;	2399	package cf;
1789		2400
1790	=back	2401	=back
1791		2402
1792	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1798	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2409	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1799	can be C<undef>. Does the right thing when the player is currently in a	2410	can be C<undef>. Does the right thing when the player is currently in a
1800	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1801		2412
1802	=cut	2413	=cut
		2414
		2415	our $SAY_CHANNEL = {
		2416	id => "say",
		2417	title => "Map",
		2418	reply => "say ",
		2419	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2420	};
		2421
		2422	our $CHAT_CHANNEL = {
		2423	id => "chat",
		2424	title => "Chat",
		2425	reply => "chat ",
		2426	tooltip => "Player chat and shouts, global to the server.",
		2427	};
1803		2428
1804	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1805	# with dialog boxes.	2430	# with dialog boxes.
1806	#TODO: the first argument must go, split into a $npc->reply_to ( method	2431	#TODO: the first argument must go, split into a $npc->reply_to ( method
1807	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1809		2434
1810	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1811		2436
1812	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1813	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1814	} else {	2440	} else {
		2441	my $pl = $self->contr;
		2442
		2443	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2444	my $dialog = $pl->{npc_dialog};
		2445	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2446
		2447	} else {
1815	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1816	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1817	}	2451	}
		2452	}
		2453
		2454	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2455
		2456	=cut
		2457
		2458	sub cf::object::send_msg {
		2459	my $pl = shift->contr
		2460	or return;
		2461	$pl->send_msg (@_);
1818	}	2462	}
1819		2463
1820	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1821		2465
1822	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1835		2479
1836	=item $player_object->enter_link	2480	=item $player_object->enter_link
1837		2481
1838	Freezes the player and moves him/her to a special map (C<{link}>).	2482	Freezes the player and moves him/her to a special map (C<{link}>).
1839		2483
1840	The player should be reasonably safe there for short amounts of time. You	2484	The player should be reasonably safe there for short amounts of time (e.g.
1841	I<MUST> call C<leave_link> as soon as possible, though.	2485	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2486	though, as the palyer cannot control the character while it is on the link
		2487	map.
1842		2488
1843	Will never block.	2489	Will never block.
1844		2490
1845	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1846		2492
…		…
1869	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1870		2516
1871	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1872		2518
1873	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1874	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1875		2521
1876	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1877	}	2523	}
1878		2524
1879	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1880	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1881		2529
1882	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1883		2531
1884	unless ($map) {	2532	unless ($map) {
1885	# restore original map position	2533	# restore original map position
…		…
1899	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1900	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1901	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1902		2550
1903	$map->load;	2551	$map->load;
1904	$map->load_diag;	2552	$map->load_neighbours;
1905		2553
1906	return unless $self->contr->active;	2554	return unless $self->contr->active;
1907	$self->activate_recursive;
1908		2555
1909	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2556	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1910	$self->enter_map ($map, $x, $y);	2557	$self->enter_map ($map, $x, $y);
1911	}
1912		2558
1913	cf::player->attach (	2559	# only activate afterwards, to support waiting in hooks
1914	on_logout => sub {	2560	$self->activate_recursive;
1915	my ($pl) = @_;	2561	}
1916		2562
1917	# abort map switching before logout	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1918	if ($pl->ob->{_link_pos}) {
1919	cf::sync_job {
1920	$pl->ob->leave_link
1921	};
1922	}
1923	},
1924	on_login => sub {
1925	my ($pl) = @_;
1926		2564
1927	# try to abort aborted map switching on player login :)	2565	Moves the player to the given map-path and coordinates by first freezing
1928	# should happen only on crashes	2566	her, loading and preparing them map, calling the provided $check callback
1929	if ($pl->ob->{_link_pos}) {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1930	$pl->ob->enter_link;	2568	the new (success) or old (failed) map position. In either case, $done will
1931	(async {	2569	be called at the end of this process.
1932	$pl->ob->reply (undef,
1933	"There was an internal problem at your last logout, "
1934	. "the server will try to bring you to your intended destination in a second.",
1935	cf::NDI_RED);
1936	# we need this sleep as the login has a concurrent enter_exit running
1937	# and this sleep increases chances of the player not ending up in scorn
1938	Coro::Timer::sleep 1;
1939	$pl->ob->leave_link;
1940	})->prio (2);
1941	}
1942	},
1943	);
1944		2570
1945	=item $player_object->goto ($path, $x, $y)	2571	Note that $check will be called with a potentially non-loaded map, so if
		2572	it needs a loaded map it has to call C<< ->load >>.
1946		2573
1947	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1948		2577
1949	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1950	my ($self, $path, $x, $y) = @_;	2579	my ($self, $path, $x, $y, $check, $done) = @_;
		2580
		2581	# do generation counting so two concurrent goto's will be executed in-order
		2582	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1951		2583
1952	$self->enter_link;	2584	$self->enter_link;
1953		2585
1954	(async {	2586	(async {
		2587	$Coro::current->{desc} = "player::goto $path $x $y";
		2588
		2589	# *tag paths override both path and x|y
		2590	if ($path =~ /^\*(.*)$/) {
		2591	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2592	my $ob = $obs[rand @obs];
		2593
		2594	# see if we actually can go there
		2595	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2596	$ob = $obs[rand @obs];
		2597	} else {
		2598	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600	# else put us there anyways for now #d#
		2601
		2602	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2603	} else {
		2604	($path, $x, $y) = (undef, undef, undef);
		2605	}
		2606	}
		2607
1955	my $map = eval {	2608	my $map = eval {
1956	my $map = cf::map::find $path;	2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1957	$map = $map->customise_for ($self) if $map;	2612	$map = $map->customise_for ($self);
		2613	$map = $check->($map) if $check && $map;
		2614	} else {
		2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
		2617
1958	$map	2618	$map
		2619	};
		2620
		2621	if ($@) {
		2622	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2623	LOG llevError | logBacktrace, Carp::longmess $@;
1959	} or	2624	}
1960	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1961		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1962	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1963	})->prio (1);	2632	})->prio (1);
1964	}	2633	}
1965		2634
1966	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1967		2636
…		…
1987	}	2656	}
1988		2657
1989	sub prepare_random_map {	2658	sub prepare_random_map {
1990	my ($exit) = @_;	2659	my ($exit) = @_;
1991		2660
1992	my $guard = cf::lock_acquire "exit_prepare:$exit";
1993
1994	# all this does is basically replace the /! path by	2661	# all this does is basically replace the /! path by
1995	# a new random map path (?random/...) with a seed	2662	# a new random map path (?random/...) with a seed
1996	# that depends on the exit object	2663	# that depends on the exit object
1997		2664
1998	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
…		…
2000	if ($exit->map) {	2667	if ($exit->map) {
2001	$rmp->{region} = $exit->region->name;	2668	$rmp->{region} = $exit->region->name;
2002	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
2003	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
2004	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
2005	}	2674	}
2006		2675
2007	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
2008		2677
2009	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2010	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
2011	my $meta = "$RANDOMDIR/$md5.meta";	2680	my $meta = "$RANDOMDIR/$md5.meta";
2012		2681
2013	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2014	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
2015	undef $fh;	2684	undef $fh;
2016	aio_rename "$meta~", $meta;	2685	aio_rename "$meta~", $meta;
2017		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
2018	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
2019	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
2020	}	2693	}
2021	}	2694	}
2022		2695
2023	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
2024	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
2025		2698
2026	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
2027		2700
2028	if ($exit->slaying eq "/!") {
2029	#TODO: this should de-fi-ni-te-ly not be a sync-job
2030	# the problem is that $exit might not survive long enough
2031	# so it needs to be done right now, right here
2032	cf::sync_job { prepare_random_map $exit };
2033	}
2034
2035	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2036	my $hp = $exit->stats->hp;
2037	my $sp = $exit->stats->sp;
2038
2039	$self->enter_link;	2701	$self->enter_link;
2040		2702
2041	(async {	2703	(async {
2042	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
2043	unless (eval {	2706	unless (eval {
		2707	$self->deactivate_recursive; # just to be sure
		2708
		2709	# random map handling
		2710	{
		2711	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2712
		2713	prepare_random_map $exit
		2714	if $exit->slaying eq "/!";
		2715	}
		2716
		2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
		2720
2044	$self->goto ($slaying, $hp, $sp);	2721	$self->goto ($map, $x, $y);
2045		2722
		2723	# if exit is damned, update players death & WoR home-position
		2724	$self->contr->savebed ($map, $x, $y)
		2725	if $exit->flag (cf::FLAG_DAMNED);
		2726
2046	1;	2727	1
2047	}) {	2728	}) {
2048	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
2049	. "I'll try to bring you back to the map you were before. "	2730	. "I'll try to bring you back to the map you were before. "
2050	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
2051	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
2052		2733
2053	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
…		…
2072		2753
2073	utf8::encode $text;	2754	utf8::encode $text;
2074	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2075	}	2756	}
2076		2757
		2758	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2759
		2760	Send a drawinfo or msg packet to the client, formatting the msg for the
		2761	client if neccessary. C<$type> should be a string identifying the type of
		2762	the message, with C<log> being the default. If C<$color> is negative, suppress
		2763	the message unless the client supports the msg packet.
		2764
		2765	=cut
		2766
		2767	# non-persistent channels (usually the info channel)
		2768	our %CHANNEL = (
		2769	"c/identify" => {
		2770	id => "infobox",
		2771	title => "Identify",
		2772	reply => undef,
		2773	tooltip => "Items recently identified",
		2774	},
		2775	"c/examine" => {
		2776	id => "infobox",
		2777	title => "Examine",
		2778	reply => undef,
		2779	tooltip => "Signs and other items you examined",
		2780	},
		2781	"c/book" => {
		2782	id => "infobox",
		2783	title => "Book",
		2784	reply => undef,
		2785	tooltip => "The contents of a note or book",
		2786	},
		2787	"c/lookat" => {
		2788	id => "infobox",
		2789	title => "Look",
		2790	reply => undef,
		2791	tooltip => "What you saw there",
		2792	},
		2793	"c/who" => {
		2794	id => "infobox",
		2795	title => "Players",
		2796	reply => undef,
		2797	tooltip => "Shows players who are currently online",
		2798	},
		2799	"c/body" => {
		2800	id => "infobox",
		2801	title => "Body Parts",
		2802	reply => undef,
		2803	tooltip => "Shows which body parts you posess and are available",
		2804	},
		2805	"c/statistics" => {
		2806	id => "infobox",
		2807	title => "Statistics",
		2808	reply => undef,
		2809	tooltip => "Shows your primary statistics",
		2810	},
		2811	"c/skills" => {
		2812	id => "infobox",
		2813	title => "Skills",
		2814	reply => undef,
		2815	tooltip => "Shows your experience per skill and item power",
		2816	},
		2817	"c/shopitems" => {
		2818	id => "infobox",
		2819	title => "Shop Items",
		2820	reply => undef,
		2821	tooltip => "Shows the items currently for sale in this shop",
		2822	},
		2823	"c/resistances" => {
		2824	id => "infobox",
		2825	title => "Resistances",
		2826	reply => undef,
		2827	tooltip => "Shows your resistances",
		2828	},
		2829	"c/pets" => {
		2830	id => "infobox",
		2831	title => "Pets",
		2832	reply => undef,
		2833	tooltip => "Shows information abotu your pets/a specific pet",
		2834	},
		2835	"c/perceiveself" => {
		2836	id => "infobox",
		2837	title => "Perceive Self",
		2838	reply => undef,
		2839	tooltip => "You gained detailed knowledge about yourself",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	"c/death" => {
		2860	id => "death",
		2861	title => "Death",
		2862	reply => undef,
		2863	tooltip => "Reason for and more info about your most recent death",
		2864	},
		2865	"c/say" => $SAY_CHANNEL,
		2866	"c/chat" => $CHAT_CHANNEL,
		2867	);
		2868
		2869	sub cf::client::send_msg {
		2870	my ($self, $channel, $msg, $color, @extra) = @_;
		2871
		2872	$msg = $self->pl->expand_cfpod ($msg)
		2873	unless $color & cf::NDI_VERBATIM;
		2874
		2875	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2876
		2877	# check predefined channels, for the benefit of C
		2878	if ($CHANNEL{$channel}) {
		2879	$channel = $CHANNEL{$channel};
		2880
		2881	$self->ext_msg (channel_info => $channel);
		2882	$channel = $channel->{id};
		2883
		2884	} elsif (ref $channel) {
		2885	# send meta info to client, if not yet sent
		2886	unless (exists $self->{channel}{$channel->{id}}) {
		2887	$self->{channel}{$channel->{id}} = $channel;
		2888	$self->ext_msg (channel_info => $channel);
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	# default colour, mask it out
		2897	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2898	if $color & cf::NDI_DEF;
		2899
		2900	my $pkt = "msg "
		2901	. $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2903	);
		2904
		2905	# try lzf for large packets
		2906	$pkt = "lzf " . Compress::LZF::compress $pkt
		2907	if 1024 <= length $pkt and $self->{can_lzf};
		2908
		2909	# split very large packets
		2910	if (8192 < length $pkt and $self->{can_lzf}) {
		2911	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2912	$pkt = "frag";
		2913	}
		2914
		2915	$self->send_packet ($pkt);
		2916	}
		2917
2077	=item $client->ext_event ($type, %msg)	2918	=item $client->ext_msg ($type, @msg)
2078		2919
2079	Sends an exti event to the client.	2920	Sends an ext event to the client.
2080		2921
2081	=cut	2922	=cut
2082		2923
2083	sub cf::client::ext_event($$%) {	2924	sub cf::client::ext_msg($$@) {
2084	my ($self, $type, %msg) = @_;	2925	my ($self, $type, @msg) = @_;
2085		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
2086	$msg{msgtype} = "event_$type";	2930	push @msg, msgtype => "event_$type";
2087	$self->send_packet ("ext " . cf::to_json \%msg);	2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
		2934
		2935	=item $client->ext_reply ($msgid, @msg)
		2936
		2937	Sends an ext reply to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_reply($$@) {
		2942	my ($self, $id, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2946	} elsif ($self->extcmd == 1) {
		2947	#TODO: version 1, remove
		2948	unshift @msg, msgtype => "reply", msgid => $id;
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2950	}
2088	}	2951	}
2089		2952
2090	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
2091		2954
2092	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
2093	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2094	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2095		2958
2096	Queries can fail, so check the return code. Or don't, as queries will become	2959	Queries can fail, so check the return code. Or don't, as queries will
2097	reliable at some point in the future.	2960	become reliable at some point in the future.
2098		2961
2099	=cut	2962	=cut
2100		2963
2101	sub cf::client::query {	2964	sub cf::client::query {
2102	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
2110	utf8::encode $text;	2973	utf8::encode $text;
2111	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2112		2975
2113	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
2114	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
2115	}	2980	}
2116		2981
2117	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
2118	on_reply => sub {	2988	on_reply => sub {
2119	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
2120		2990
2121	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
2122	# get handled first	2992	# get handled first
…		…
2134	} else {	3004	} else {
2135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2136	}	3006	}
2137	}	3007	}
2138	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($ns, $buf) = @_;
		3011
		3012	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3013
		3014	if (ref $msg) {
		3015	my ($type, $reply, @payload) =
		3016	"ARRAY" eq ref $msg
		3017	? @$msg
		3018	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3019
		3020	my @reply;
		3021
		3022	if (my $cb = $EXTICMD{$type}) {
		3023	@reply = $cb->($ns, @payload);
		3024	}
		3025
		3026	$ns->ext_reply ($reply, @reply)
		3027	if $reply;
		3028
		3029	} else {
		3030	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3031	}
		3032
		3033	cf::override;
		3034	},
2139	);	3035	);
2140		3036
2141	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2142		3038
2143	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2184	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2185	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2186		3082
2187	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2188		3084
2189	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
2190		3090
2191	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2192		3092
2193	=pod	3093	=pod
2194		3094
2195	The following functions and methods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2196		3096
2197	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100	value
		3101
2198	cf::object::player player	3102	cf::object::player
2199	cf::player peaceful	3103	player
2200	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
2201		3110
2202	=cut	3111	=cut
2203		3112
2204	for (	3113	for (
2205	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
2206	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2207	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2208	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2209	) {	3120	) {
2210	no strict 'refs';	3121	no strict 'refs';
2211	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2212	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2229	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2230		3141
2231	my $qcode = $code;	3142	my $qcode = $code;
2232	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2233	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2234		3147
2235	local $_;	3148	local $_;
2236	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2237		3150
2238	my $eval =	3151	my $eval =
…		…
2281	=back	3194	=back
2282		3195
2283	=cut	3196	=cut
2284		3197
2285	#############################################################################	3198	#############################################################################
2286
2287	=head2 EXTENSION DATABASE SUPPORT
2288
2289	Crossfire maintains a very simple database for extension use. It can
2290	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2291	convert to/from binary).
2292
2293	The parameter C<$family> should best start with the name of the extension
2294	using it, it should be unique.
2295
2296	=over 4
2297
2298	=item $value = cf::db_get $family => $key
2299
2300	Returns a single value from the database.
2301
2302	=item cf::db_put $family => $key => $value
2303
2304	Stores the given C<$value> in the family.
2305
2306	=cut
2307
2308	our $DB;
2309
2310	sub db_init {
2311	unless ($DB) {
2312	$DB = BDB::db_create $DB_ENV;
2313
2314	cf::sync_job {
2315	eval {
2316	$DB->set_flags (BDB::CHKSUM);
2317
2318	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2319	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2320	cf::cleanup "db_open(db): $!" if $!;
2321	};
2322	cf::cleanup "db_open(db): $@" if $@;
2323	};
2324	}
2325	}
2326
2327	sub db_get($$) {
2328	my $key = "$_[0]/$_[1]";
2329
2330	cf::sync_job {
2331	BDB::db_get $DB, undef, $key, my $data;
2332
2333	$! ? ()
2334	: $data
2335	}
2336	}
2337
2338	sub db_put($$$) {
2339	BDB::dbreq_pri 4;
2340	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2341	}
2342
2343	=item cf::cache $id => [$paths...], $processversion => $process
2344
2345	Generic caching function that returns the value of the resource $id,
2346	caching and regenerating as required.
2347
2348	This function can block.
2349
2350	=cut
2351
2352	sub cache {
2353	my ($id, $src, $processversion, $process) = @_;
2354
2355	my $meta =
2356	join "\x00",
2357	$processversion,
2358	map {
2359	aio_stat $_
2360	and Carp::croak "$_: $!";
2361
2362	($_, (stat _)[7,9])
2363	} @$src;
2364
2365	my $dbmeta = db_get cache => "$id/meta";
2366	if ($dbmeta ne $meta) {
2367	# changed, we may need to process
2368
2369	my @data;
2370	my $md5;
2371
2372	for (0 .. $#$src) {
2373	0 <= aio_load $src->[$_], $data[$_]
2374	or Carp::croak "$src->[$_]: $!";
2375	}
2376
2377	# if processing is expensive, check
2378	# checksum first
2379	if (1) {
2380	$md5 =
2381	join "\x00",
2382	$processversion,
2383	map {
2384	Coro::cede;
2385	($src->[$_], Digest::MD5::md5_hex $data[$_])
2386	} 0.. $#$src;
2387
2388
2389	my $dbmd5 = db_get cache => "$id/md5";
2390	if ($dbmd5 eq $md5) {
2391	db_put cache => "$id/meta", $meta;
2392
2393	return db_get cache => "$id/data";
2394	}
2395	}
2396
2397	my $t1 = Time::HiRes::time;
2398	my $data = $process->(\@data);
2399	my $t2 = Time::HiRes::time;
2400
2401	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2402
2403	db_put cache => "$id/data", $data;
2404	db_put cache => "$id/md5" , $md5;
2405	db_put cache => "$id/meta", $meta;
2406
2407	return $data;
2408	}
2409
2410	db_get cache => "$id/data"
2411	}
2412
2413	=item fork_call { }, $args
2414
2415	Executes the given code block with the given arguments in a seperate
2416	process, returning the results. Everything must be serialisable with
2417	Coro::Storable. May, of course, block. Note that the executed sub may
2418	never block itself or use any form of Event handling.
2419
2420	=cut
2421
2422	sub fork_call(&@) {
2423	my ($cb, @args) = @_;
2424
2425	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2426	# or die "socketpair: $!";
2427	pipe my $fh1, my $fh2
2428	or die "pipe: $!";
2429
2430	if (my $pid = fork) {
2431	close $fh2;
2432
2433	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2434	$res = Coro::Storable::thaw $res;
2435
2436	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2437
2438	die $$res unless "ARRAY" eq ref $res;
2439
2440	return wantarray ? @$res : $res->[-1];
2441	} else {
2442	local $SIG{__WARN__};
2443	eval {
2444	local $SIG{__DIE__};
2445	close $fh1;
2446
2447	my @res = eval { $cb->(@args) };
2448	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2449	};
2450
2451	warn $@ if $@;
2452	_exit 0;
2453	}
2454	}
2455
2456
2457
2458	#############################################################################
2459	# the server's init and main functions	3199	# the server's init and main functions
2460		3200
2461	sub load_facedata($) {	3201	sub load_facedata($) {
2462	my ($path) = @_;	3202	my ($path) = @_;
		3203
		3204	# HACK to clear player env face cache, we need some signal framework
		3205	# for this (global event?)
		3206	%ext::player_env::MUSIC_FACE_CACHE = ();
		3207
		3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2463		3209
2464	warn "loading facedata from $path\n";	3210	warn "loading facedata from $path\n";
2465		3211
2466	my $facedata;	3212	my $facedata;
2467	0 < aio_load $path, $facedata	3213	0 < aio_load $path, $facedata
…		…
2470	$facedata = Coro::Storable::thaw $facedata;	3216	$facedata = Coro::Storable::thaw $facedata;
2471		3217
2472	$facedata->{version} == 2	3218	$facedata->{version} == 2
2473	or cf::cleanup "$path: version mismatch, cannot proceed.";	3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
2474		3220
		3221	# patch in the exptable
		3222	$facedata->{resource}{"res/exp_table"} = {
		3223	type => FT_RSRC,
		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3225	};
		3226	cf::cede_to_tick;
		3227
2475	{	3228	{
2476	my $faces = $facedata->{faceinfo};	3229	my $faces = $facedata->{faceinfo};
2477		3230
2478	while (my ($face, $info) = each %$faces) {	3231	while (my ($face, $info) = each %$faces) {
2479	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3233
2480	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3234	cf::face::set_visibility $idx, $info->{visibility};
		3235	cf::face::set_magicmap $idx, $info->{magicmap};
2481	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2482	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2483	Coro::cede;	3238
		3239	cf::cede_to_tick;
2484	}	3240	}
2485		3241
2486	while (my ($face, $info) = each %$faces) {	3242	while (my ($face, $info) = each %$faces) {
2487	next unless $info->{smooth};	3243	next unless $info->{smooth};
		3244
2488	my $idx = cf::face::find $face	3245	my $idx = cf::face::find $face
2489	or next;	3246	or next;
		3247
2490	if (my $smooth = cf::face::find $info->{smooth}) {	3248	if (my $smooth = cf::face::find $info->{smooth}) {
		3249	cf::face::set_smooth $idx, $smooth;
2491	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3250	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2492	} else {	3251	} else {
2493	warn "smooth face '$info->{smooth}' not found for face '$face'";	3252	warn "smooth face '$info->{smooth}' not found for face '$face'";
2494	}	3253	}
2495	Coro::cede;	3254
		3255	cf::cede_to_tick;
2496	}	3256	}
2497	}	3257	}
2498		3258
2499	{	3259	{
2500	my $anims = $facedata->{animinfo};	3260	my $anims = $facedata->{animinfo};
2501		3261
2502	while (my ($anim, $info) = each %$anims) {	3262	while (my ($anim, $info) = each %$anims) {
2503	cf::anim::set $anim, $info->{frames}, $info->{facings};	3263	cf::anim::set $anim, $info->{frames}, $info->{facings};
2504	Coro::cede;	3264	cf::cede_to_tick;
2505	}	3265	}
2506		3266
2507	cf::anim::invalidate_all; # d'oh	3267	cf::anim::invalidate_all; # d'oh
2508	}	3268	}
2509		3269
		3270	{
		3271	# TODO: for gcfclient pleasure, we should give resources
		3272	# that gcfclient doesn't grok a >10000 face index.
		3273	my $res = $facedata->{resource};
		3274
		3275	while (my ($name, $info) = each %$res) {
		3276	if (defined $info->{type}) {
		3277	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3278	my $data;
		3279
		3280	if ($info->{type} & 1) {
		3281	# prepend meta info
		3282
		3283	my $meta = $enc->encode ({
		3284	name => $name,
		3285	%{ $info->{meta} || {} },
		3286	});
		3287
		3288	$data = pack "(w/a*)*", $meta, $info->{data};
		3289	} else {
		3290	$data = $info->{data};
		3291	}
		3292
		3293	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3294	cf::face::set_type $idx, $info->{type};
		3295	} else {
		3296	$RESOURCE{$name} = $info;
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3304
2510	1	3305	1
2511	}	3306	}
2512		3307
		3308	cf::global->attach (on_resource_update => sub {
		3309	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3310	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3311
		3312	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3313	my $sound = $soundconf->{compat}[$_]
		3314	or next;
		3315
		3316	my $face = cf::face::find "sound/$sound->[1]";
		3317	cf::sound::set $sound->[0] => $face;
		3318	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3319	}
		3320
		3321	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3322	my $face = cf::face::find "sound/$v";
		3323	cf::sound::set $k => $face;
		3324	}
		3325	}
		3326	});
		3327
		3328	register_exticmd fx_want => sub {
		3329	my ($ns, $want) = @_;
		3330
		3331	while (my ($k, $v) = each %$want) {
		3332	$ns->fx_want ($k, $v);
		3333	}
		3334	};
		3335
		3336	sub load_resource_file($) {
		3337	my $guard = lock_acquire "load_resource_file";
		3338
		3339	my $status = load_resource_file_ $_[0];
		3340	get_slot 0.1, 100;
		3341	cf::arch::commit_load;
		3342
		3343	$status
		3344	}
		3345
2513	sub reload_regions {	3346	sub reload_regions {
		3347	# HACK to clear player env face cache, we need some signal framework
		3348	# for this (global event?)
		3349	%ext::player_env::MUSIC_FACE_CACHE = ();
		3350
2514	load_resource_file "$MAPDIR/regions"	3351	load_resource_file "$MAPDIR/regions"
2515	or die "unable to load regions file\n";	3352	or die "unable to load regions file\n";
		3353
		3354	for (cf::region::list) {
		3355	$_->{match} = qr/$_->{match}/
		3356	if exists $_->{match};
		3357	}
2516	}	3358	}
2517		3359
2518	sub reload_facedata {	3360	sub reload_facedata {
2519	load_facedata "$DATADIR/facedata"	3361	load_facedata "$DATADIR/facedata"
2520	or die "unable to load facedata\n";	3362	or die "unable to load facedata\n";
…		…
2531	}	3373	}
2532		3374
2533	sub reload_resources {	3375	sub reload_resources {
2534	warn "reloading resource files...\n";	3376	warn "reloading resource files...\n";
2535		3377
2536	reload_regions;
2537	reload_facedata;	3378	reload_facedata;
2538	reload_archetypes;	3379	reload_archetypes;
		3380	reload_regions;
2539	reload_treasures;	3381	reload_treasures;
2540		3382
2541	warn "finished reloading resource files\n";	3383	warn "finished reloading resource files\n";
2542	}	3384	}
2543		3385
2544	sub init {	3386	sub reload_config {
2545	reload_resources;
2546	}
2547
2548	sub cfg_load {
2549	open my $fh, "<:utf8", "$CONFDIR/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2550	or return;	3388	or return;
2551		3389
2552	local $/;	3390	local $/;
2553	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2554		3392
2555	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2556		3394
2557	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3395	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2558	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3396	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2564	};	3402	};
2565	warn $@ if $@;	3403	warn $@ if $@;
2566	}	3404	}
2567	}	3405	}
2568		3406
		3407	sub pidfile() {
		3408	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3409	or die "$PIDFILE: $!";
		3410	flock $fh, &Fcntl::LOCK_EX
		3411	or die "$PIDFILE: flock: $!";
		3412	$fh
		3413	}
		3414
		3415	# make sure only one server instance is running at any one time
		3416	sub atomic {
		3417	my $fh = pidfile;
		3418
		3419	my $pid = <$fh>;
		3420	kill 9, $pid if $pid > 0;
		3421
		3422	seek $fh, 0, 0;
		3423	print $fh $$;
		3424	}
		3425
		3426	sub main_loop {
		3427	warn "EV::loop starting\n";
		3428	if (1) {
		3429	EV::loop;
		3430	}
		3431	warn "EV::loop returned\n";
		3432	goto &main_loop unless $REALLY_UNLOOP;
		3433	}
		3434
2569	sub main {	3435	sub main {
		3436	cf::init_globals; # initialise logging
		3437
		3438	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3439	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3440	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3441	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3442
		3443	cf::init_experience;
		3444	cf::init_anim;
		3445	cf::init_attackmess;
		3446	cf::init_dynamic;
		3447
		3448	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3449
2570	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2571	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2572	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2573	(async {	3453	(async {
2574	Event::one_event;	3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
2575	})->prio (Coro::PRIO_MAX);	3456	})->prio (Coro::PRIO_MAX);
2576	};	3457	};
2577		3458
2578	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
		3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
2579	db_init;	3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
2580	load_extensions;	3477	load_extensions;
2581		3478
2582	$TICK_WATCHER->start;	3479	utime time, time, $RUNTIMEFILE;
2583	Event::loop;	3480
		3481	# no (long-running) fork's whatsoever before this point(!)
		3482	use POSIX ();
		3483	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3484
		3485	(pop @POST_INIT)->(0) while @POST_INIT;
		3486	};
		3487
		3488	main_loop;
2584	}	3489	}
2585		3490
2586	#############################################################################	3491	#############################################################################
2587	# initialisation and cleanup	3492	# initialisation and cleanup
2588		3493
2589	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2590	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2591	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2592	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2593	reentrant => 0,
2594	data => WF_AUTOCANCEL,
2595	signal => $signal,
2596	prio => 0,
2597	cb => sub {
2598	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2599	},
2600	);	3500	};
		3501	}
		3502	}
		3503
		3504	sub write_runtime_sync {
		3505	# first touch the runtime file to show we are still running:
		3506	# the fsync below can take a very very long time.
		3507
		3508	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3509
		3510	my $guard = cf::lock_acquire "write_runtime";
		3511
		3512	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3513	or return;
		3514
		3515	my $value = $cf::RUNTIME + 90 + 10;
		3516	# 10 is the runtime save interval, for a monotonic clock
		3517	# 60 allows for the watchdog to kill the server.
		3518
		3519	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3520	and return;
		3521
		3522	# always fsync - this file is important
		3523	aio_fsync $fh
		3524	and return;
		3525
		3526	# touch it again to show we are up-to-date
		3527	aio_utime $fh, undef, undef;
		3528
		3529	close $fh
		3530	or return;
		3531
		3532	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3533	and return;
		3534
		3535	warn "runtime file written.\n";
		3536
2601	}	3537	1
		3538	}
		3539
		3540	our $uuid_lock;
		3541	our $uuid_skip;
		3542
		3543	sub write_uuid_sync($) {
		3544	$uuid_skip ||= $_[0];
		3545
		3546	return if $uuid_lock;
		3547	local $uuid_lock = 1;
		3548
		3549	my $uuid = "$LOCALDIR/uuid";
		3550
		3551	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3552	or return;
		3553
		3554	my $value = uuid_seq uuid_cur;
		3555
		3556	unless ($value) {
		3557	warn "cowardly refusing to write zero uuid value!\n";
		3558	return;
		3559	}
		3560
		3561	my $value = uuid_str $value + $uuid_skip;
		3562	$uuid_skip = 0;
		3563
		3564	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3565	and return;
		3566
		3567	# always fsync - this file is important
		3568	aio_fsync $fh
		3569	and return;
		3570
		3571	close $fh
		3572	or return;
		3573
		3574	aio_rename "$uuid~", $uuid
		3575	and return;
		3576
		3577	warn "uuid file written ($value).\n";
		3578
		3579	1
		3580
		3581	}
		3582
		3583	sub write_uuid($$) {
		3584	my ($skip, $sync) = @_;
		3585
		3586	$sync ? write_uuid_sync $skip
		3587	: async { write_uuid_sync $skip };
2602	}	3588	}
2603		3589
2604	sub emergency_save() {	3590	sub emergency_save() {
2605	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2606		3592
2607	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2608		3594
2609	cf::sync_job {	3595	cf::sync_job {
		3596	# this is a trade-off: we want to be very quick here, so
		3597	# save all maps without fsync, and later call a global sync
		3598	# (which in turn might be very very slow)
		3599	local $USE_FSYNC = 0;
		3600
2610	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2611	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2612	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2613	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2614	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2615	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2616	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2617	$pl->save;	3609	$pl->save;
2618	}	3610	}
2619	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2620		3612
2621	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2622	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2623	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2624	$map->valid or next;	3616	$map->valid or next;
2625	$map->save;	3617	$map->save;
2626	}	3618	}
2627	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
2628		3620
2629	warn "begin emergency database checkpoint\n";	3621	warn "emergency_perl_save: begin database checkpoint\n";
2630	BDB::db_env_txn_checkpoint $DB_ENV;	3622	BDB::db_env_txn_checkpoint $DB_ENV;
2631	warn "end emergency database checkpoint\n";	3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
2632	};	3628	};
2633		3629
		3630	warn "emergency_perl_save: starting sync()\n";
		3631	IO::AIO::aio_sync sub {
		3632	warn "emergency_perl_save: finished sync()\n";
		3633	};
		3634
2634	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2635	}	3636	}
2636		3637
2637	sub post_cleanup {	3638	sub post_cleanup {
2638	my ($make_core) = @_;	3639	my ($make_core) = @_;
2639		3640
2640	warn Carp::longmess "post_cleanup backtrace"	3641	warn Carp::longmess "post_cleanup backtrace"
2641	if $make_core;	3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
2642	}	3672	}
2643		3673
2644	sub do_reload_perl() {	3674	sub do_reload_perl() {
2645	# can/must only be called in main	3675	# can/must only be called in main
2646	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2647	warn "can only reload from main coroutine";	3677	warn "can only reload from main coroutine";
2648	return;	3678	return;
2649	}	3679	}
2650		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2651	warn "reloading...";	3686	warn "reloading...";
2652		3687
2653	warn "entering sync_job";	3688	warn "entering sync_job";
2654		3689
2655	cf::sync_job {	3690	cf::sync_job {
2656	cf::write_runtime; # external watchdog should not bark	3691	cf::write_runtime_sync; # external watchdog should not bark
2657	cf::emergency_save;	3692	cf::emergency_save;
2658	cf::write_runtime; # external watchdog should not bark	3693	cf::write_runtime_sync; # external watchdog should not bark
2659		3694
2660	warn "syncing database to disk";	3695	warn "syncing database to disk";
2661	BDB::db_env_txn_checkpoint $DB_ENV;	3696	BDB::db_env_txn_checkpoint $DB_ENV;
2662		3697
2663	# if anything goes wrong in here, we should simply crash as we already saved	3698	# if anything goes wrong in here, we should simply crash as we already saved
2664		3699
2665	warn "cancelling all WF_AUTOCANCEL watchers";
2666	for (Event::all_watchers) {
2667	$_->cancel if $_->data & WF_AUTOCANCEL;
2668	}
2669
2670	warn "flushing outstanding aio requests";	3700	warn "flushing outstanding aio requests";
2671	for (;;) {
2672	BDB::flush;
2673	IO::AIO::flush;
2674	Coro::cede;
2675	last unless IO::AIO::nreqs || BDB::nreqs;	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2676	warn "iterate...";	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2677	}
2678
2679	++$RELOAD;
2680
2681	warn "cancelling all extension coros";
2682	$_->cancel for values %EXT_CORO;
2683	%EXT_CORO = ();
2684
2685	warn "removing commands";
2686	%COMMAND = ();
2687
2688	warn "removing ext commands";
2689	%EXTCMD = ();
2690
2691	warn "unloading/nuking all extensions";
2692	for my $pkg (@EXTS) {
2693	warn "... unloading $pkg";
2694
2695	if (my $cb = $pkg->can ("unload")) {
2696	eval {
2697	$cb->($pkg);
2698	1
2699	} or warn "$pkg unloaded, but with errors: $@";
2700	}	3703	}
2701		3704
2702	warn "... nuking $pkg";	3705	warn "cancelling all extension coros";
2703	Symbol::delete_package $pkg;	3706	$_->cancel for values %EXT_CORO;
2704	}	3707	%EXT_CORO = ();
2705		3708
2706	warn "unloading all perl modules loaded from $LIBDIR";	3709	warn "removing commands";
2707	while (my ($k, $v) = each %INC) {	3710	%COMMAND = ();
2708	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2709		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2710	warn "... unloading $k";	3718	warn "... unloading $pkg";
2711	delete $INC{$k};
2712		3719
2713	$k =~ s/\.pm$//;
2714	$k =~ s/\//::/g;
2715
2716	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2717	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2718	}	3729	}
2719		3730
2720	Symbol::delete_package $k;	3731	warn "unloading all perl modules loaded from $LIBDIR";
		3732	while (my ($k, $v) = each %INC) {
		3733	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3734
		3735	warn "... unloading $k";
		3736	delete $INC{$k};
		3737
		3738	$k =~ s/\.pm$//;
		3739	$k =~ s/\//::/g;
		3740
		3741	if (my $cb = $k->can ("unload_module")) {
		3742	$cb->();
		3743	}
		3744
		3745	clear_package $k;
2721	}	3746	}
2722		3747
2723	warn "getting rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2724	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2725	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3750	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2726		3751
2727	warn "unloading cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2728	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
2729	delete $INC{"cf/pod.pm"};	3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2730		3755
2731	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2732	# and global variables created in xs	3757	# and global variables created in xs
2733	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2734		3759
2735	warn "unload completed, starting to reload now";	3760	warn "unload completed, starting to reload now";
2736		3761
2737	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2738	require cf;	3763	require cf;
2739	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2740		3765
2741	warn "loading config and database again";	3766	warn "loading config and database again";
2742	cf::cfg_load;	3767	cf::reload_config;
2743		3768
2744	warn "loading extensions";	3769	warn "loading extensions";
2745	cf::load_extensions;	3770	cf::load_extensions;
2746		3771
		3772	if ($REATTACH_ON_RELOAD) {
2747	warn "reattaching attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2748	_global_reattach; # objects, sockets	3774	_global_reattach; # objects, sockets
2749	warn "reattaching attachments to maps";	3775	warn "reattaching attachments to maps";
2750	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
2751	warn "reattaching attachments to players";	3777	warn "reattaching attachments to players";
2752	reattach $_ for values %PLAYER;	3778	reattach $_ for values %PLAYER;
		3779	}
2753		3780
		3781	warn "running post_init jobs";
		3782	(pop @POST_INIT)->(1) while @POST_INIT;
		3783
2754	warn "leaving sync_job";	3784	warn "leaving sync_job";
2755		3785
2756	1	3786	1
2757	} or do {	3787	} or do {
2758	warn $@;	3788	warn $@;
2759	warn "error while reloading, exiting.";	3789	cf::cleanup "error while reloading, exiting.";
2760	exit 1;
2761	};	3790	};
2762		3791
2763	warn "reloaded";	3792	warn "reloaded";
		3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
2764	};	3798	};
2765		3799
2766	our $RELOAD_WATCHER; # used only during reload	3800	our $RELOAD_WATCHER; # used only during reload
2767		3801
2768	sub reload_perl() {	3802	sub reload_perl() {
2769	# doing reload synchronously and two reloads happen back-to-back,	3803	# doing reload synchronously and two reloads happen back-to-back,
2770	# coro crashes during coro_state_free->destroy here.	3804	# coro crashes during coro_state_free->destroy here.
2771		3805
2772	$RELOAD_WATCHER ||= Event->timer (	3806	$RELOAD_WATCHER ||= cf::async {
2773	reentrant => 0,	3807	Coro::AIO::aio_wait cache_extensions;
2774	after => 0,	3808
2775	data => WF_AUTOCANCEL,	3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2776	cb => sub {
2777	do_reload_perl;	3810	do_reload_perl;
2778	undef $RELOAD_WATCHER;	3811	undef $RELOAD_WATCHER;
2779	},	3812	};
2780	);	3813	};
2781	}	3814	}
2782		3815
2783	register_command "reload" => sub {	3816	register_command "reload" => sub {
2784	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2785		3818
2786	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2787	$who->message ("reloading server.");	3820	$who->message ("reloading server.");
		3821	async {
		3822	$Coro::current->{desc} = "perl_reload";
2788	async { reload_perl };	3823	reload_perl;
		3824	};
2789	}	3825	}
2790	};	3826	};
2791		3827
2792	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2793		3829
…		…
2795		3831
2796	our @WAIT_FOR_TICK;	3832	our @WAIT_FOR_TICK;
2797	our @WAIT_FOR_TICK_BEGIN;	3833	our @WAIT_FOR_TICK_BEGIN;
2798		3834
2799	sub wait_for_tick {	3835	sub wait_for_tick {
2800	return unless $TICK_WATCHER->is_active;
2801	return if $Coro::current == $Coro::main;	3836	return if tick_inhibit || $Coro::current == $Coro::main;
2802		3837
2803	my $signal = new Coro::Signal;	3838	my $signal = new Coro::Signal;
2804	push @WAIT_FOR_TICK, $signal;	3839	push @WAIT_FOR_TICK, $signal;
2805	$signal->wait;	3840	$signal->wait;
2806	}	3841	}
2807		3842
2808	sub wait_for_tick_begin {	3843	sub wait_for_tick_begin {
2809	return unless $TICK_WATCHER->is_active;
2810	return if $Coro::current == $Coro::main;	3844	return if tick_inhibit || $Coro::current == $Coro::main;
2811		3845
2812	my $signal = new Coro::Signal;	3846	my $signal = new Coro::Signal;
2813	push @WAIT_FOR_TICK_BEGIN, $signal;	3847	push @WAIT_FOR_TICK_BEGIN, $signal;
2814	$signal->wait;	3848	$signal->wait;
2815	}	3849	}
2816		3850
2817	$TICK_WATCHER = Event->timer (	3851	sub tick {
2818	reentrant => 0,
2819	parked => 1,
2820	prio => 0,
2821	at => $NEXT_TICK || $TICK,
2822	data => WF_AUTOCANCEL,
2823	cb => sub {
2824	if ($Coro::current != $Coro::main) {	3852	if ($Coro::current != $Coro::main) {
2825	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2826	unless ++$bug_warning > 10;	3854	unless ++$bug_warning > 10;
2827	return;	3855	return;
2828	}	3856	}
2829		3857
2830	$NOW = Event::time;
2831
2832	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2833		3859
2834	$RUNTIME += $TICK;
2835	$NEXT_TICK += $TICK;
2836
2837	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2838	$NEXT_RUNTIME_WRITE = $NOW + 10;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2839	Coro::async_pool {	3862	Coro::async_pool {
		3863	$Coro::current->{desc} = "runtime saver";
2840	write_runtime	3864	write_runtime_sync
2841	or warn "ERROR: unable to write runtime file: $!";	3865	or warn "ERROR: unable to write runtime file: $!";
2842	};
2843	}	3866	};
		3867	}
2844		3868
2845	# my $AFTER = Event::time;
2846	# warn $AFTER - $NOW;#d#
2847
2848	# if we are delayed by four ticks or more, skip them all
2849	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2850
2851	$TICK_WATCHER->at ($NEXT_TICK);
2852	$TICK_WATCHER->start;
2853
2854	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2855	$sig->send;	3870	$sig->send;
2856	}	3871	}
2857	while (my $sig = shift @WAIT_FOR_TICK) {	3872	while (my $sig = shift @WAIT_FOR_TICK) {
2858	$sig->send;	3873	$sig->send;
2859	}
2860
2861	_post_tick;
2862	},	3874	}
2863	);	3875
		3876	$LOAD = ($NOW - $TICK_START) / $TICK;
		3877	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3878
		3879	if (0) {
		3880	if ($NEXT_TICK) {
		3881	my $jitter = $TICK_START - $NEXT_TICK;
		3882	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3883	warn "jitter $JITTER\n";#d#
		3884	}
		3885	}
		3886	}
2864		3887
2865	{	3888	{
2866	BDB::max_poll_time $TICK * 0.1;	3889	# configure BDB
2867	$BDB_POLL_WATCHER = Event->io (	3890
2868	reentrant => 0,
2869	fd => BDB::poll_fileno,
2870	poll => 'r',
2871	prio => 0,
2872	data => WF_AUTOCANCEL,
2873	cb => \&BDB::poll_cb,
2874	);
2875	BDB::min_parallel 8;	3891	BDB::min_parallel 8;
2876		3892	BDB::max_poll_reqs $TICK * 0.1;
2877	BDB::set_sync_prepare {	3893	$AnyEvent::BDB::WATCHER->priority (1);
2878	my $status;
2879	my $current = $Coro::current;
2880	(
2881	sub {
2882	$status = $!;
2883	$current->ready; undef $current;
2884	},
2885	sub {
2886	Coro::schedule while defined $current;
2887	$! = $status;
2888	},
2889	)
2890	};
2891		3894
2892	unless ($DB_ENV) {	3895	unless ($DB_ENV) {
2893	$DB_ENV = BDB::db_env_create;	3896	$DB_ENV = BDB::db_env_create;
		3897	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3898	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3899	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3900	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3901	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2894		3902
2895	cf::sync_job {	3903	cf::sync_job {
2896	eval {	3904	eval {
2897	BDB::db_env_open	3905	BDB::db_env_open
2898	$DB_ENV,	3906	$DB_ENV,
…		…
2900	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2901	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2902	0666;	3910	0666;
2903		3911
2904	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2905
2906	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2907	$DB_ENV->set_lk_detect;
2908	};	3913	};
2909		3914
2910	cf::cleanup "db_env_open(db): $@" if $@;	3915	cf::cleanup "db_env_open(db): $@" if $@;
2911	};	3916	};
2912	}	3917	}
		3918
		3919	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3920	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3921	};
		3922	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3923	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3924	};
		3925	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3926	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3927	};
2913	}	3928	}
2914		3929
2915	{	3930	{
		3931	# configure IO::AIO
		3932
2916	IO::AIO::min_parallel 8;	3933	IO::AIO::min_parallel 8;
2917
2918	undef $Coro::AIO::WATCHER;
2919	IO::AIO::max_poll_time $TICK * 0.1;	3934	IO::AIO::max_poll_time $TICK * 0.1;
2920	$AIO_POLL_WATCHER = Event->io (	3935	undef $AnyEvent::AIO::WATCHER;
2921	reentrant => 0,	3936	}
2922	data => WF_AUTOCANCEL,	3937
2923	fd => IO::AIO::poll_fileno,	3938	my $_log_backtrace;
2924	poll => 'r',	3939
2925	prio => 6,	3940	sub _log_backtrace {
2926	cb => \&IO::AIO::poll_cb,	3941	my ($msg, @addr) = @_;
2927	);	3942
		3943	$msg =~ s/\n//;
		3944
		3945	# limit the # of concurrent backtraces
		3946	if ($_log_backtrace < 2) {
		3947	++$_log_backtrace;
		3948	my $perl_bt = Carp::longmess $msg;
		3949	async {
		3950	$Coro::current->{desc} = "abt $msg";
		3951
		3952	my @bt = fork_call {
		3953	@addr = map { sprintf "%x", $_ } @addr;
		3954	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3955	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3956	or die "addr2line: $!";
		3957
		3958	my @funcs;
		3959	my @res = <$fh>;
		3960	chomp for @res;
		3961	while (@res) {
		3962	my ($func, $line) = splice @res, 0, 2, ();
		3963	push @funcs, "[$func] $line";
		3964	}
		3965
		3966	@funcs
		3967	};
		3968
		3969	LOG llevInfo, "[ABT] $perl_bt\n";
		3970	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3971	LOG llevInfo, "[ABT] $_\n" for @bt;
		3972	--$_log_backtrace;
		3973	};
		3974	} else {
		3975	LOG llevInfo, "[ABT] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
		3977	}
2928	}	3978	}
2929		3979
2930	# load additional modules	3980	# load additional modules
2931	use cf::pod;	3981	require "cf/$_.pm" for @EXTRA_MODULES;
2932		3982
2933	END { cf::emergency_save }	3983	END { cf::emergency_save }
2934		3984
2935	1	3985	1
2936		3986

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