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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.225 by root, Wed Mar 14 00:04:58 2007 UTC vs.
Revision 1.486 by root, Thu Oct 15 21:56:50 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
13		37
		38	use Guard ();
14	use Coro 3.52 ();	39	use Coro ();
15	use Coro::State;	40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
16	use Coro::Event;	43	use Coro::AnyEvent;
17	use Coro::Timer;	44	use Coro::Timer;
18	use Coro::Signal;	45	use Coro::Signal;
19	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
20	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
21		53
		54	use JSON::XS 2.01 ();
22	use BDB ();	55	use BDB ();
23	use Data::Dumper;	56	use Data::Dumper;
24	use Digest::MD5;	57	use Digest::MD5;
25	use Fcntl;	58	use Fcntl;
26	use IO::AIO 2.32 ();
27	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
28	use Time::HiRes;	61	use Time::HiRes;
29	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
30		64
		65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
31	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
32	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
33	$Event::Eval = 1; # no idea why this is required, but it is	77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
34		80
35	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
36
37	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
38	$YAML::Syck::ImplicitUnicode = 1;
39
40	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
41		82
42	our %COMMAND = ();	83	our %COMMAND = ();
43	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
44		85
45	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
46	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
47	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
48	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
49		91
50	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
51	our @EVENT;	93	our @EVENT;
52	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
53		96
54	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
55	our $TICK_WATCHER;	98	our $DATADIR = datadir;
56	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
57	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
58	our $NEXT_TICK;	115	our $NEXT_TICK;
59	our $NOW;
60	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
61		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
62	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
63	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
64		124
65	our %CFG;	125	our %CFG;
66		126
67	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
68	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
69		130
70	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
71	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
72	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
73	our $RANDOM_MAPS = cf::localdir . "/random";
74	our $BDB_ENV_DIR = cf::localdir . "/db";
75
76	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
77	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
78		134
79	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
80	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
81		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
82	binmode STDOUT;	148	binmode STDOUT;
83	binmode STDERR;	149	binmode STDERR;
84		150
85	# read virtual server time, if available	151	# read virtual server time, if available
86	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
87	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
88	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
89	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
90	}	156	}
91		157
92	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
93	mkdir cf::localdir . "/" . cf::playerdir;	159
94	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
95	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
96	mkdir $RANDOM_MAPS;
97	mkdir $BDB_ENV_DIR;
98		162
99	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
100		164
101	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
102		177
103	#############################################################################	178	#############################################################################
104		179
105	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
106		181
…		…
113	=item $cf::RUNTIME	188	=item $cf::RUNTIME
114		189
115	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
116	every server tick.	191	every server tick.
117		192
118	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
119		196
120	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
121	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
122		201
123	=item $cf::NOW	202	=item $cf::NOW
124		203
125	The time of the last (current) server tick.	204	The time of the last (current) server tick.
126		205
127	=item $cf::TICK	206	=item $cf::TICK
128		207
129	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
130		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
131	=item %cf::CFG	220	=item %cf::CFG
132		221
133	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
134	from wherever your confdir points to.	223	from wherever your confdir points to.
135		224
136	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
137		226
138	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
139	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
140	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
141	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
142		242
143	=back	243	=back
144		244
145	=cut	245	=cut
146		246
147	BEGIN {	247	$Coro::State::WARNHOOK = sub {
148	*CORE::GLOBAL::warn = sub {
149	my $msg = join "", @_;	248	my $msg = join "", @_;
150	utf8::encode $msg;
151		249
152	$msg .= "\n"	250	$msg .= "\n"
153	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
154		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
155	LOG llevError, $msg;	255	LOG llevError, $msg;
156	};	256	};
157	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
158		271
159	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
160	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
161	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
162	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
163	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
164	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
165		279
166	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
167	# within the Safe compartment.	281	# within the Safe compartment.
168	for my $pkg (qw(	282	for my $pkg (qw(
169	cf::global cf::attachable	283	cf::global cf::attachable
170	cf::object cf::object::player	284	cf::object cf::object::player
171	cf::client cf::player	285	cf::client cf::player
172	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
173	cf::map cf::party cf::region	288	cf::party cf::region
174	)) {	289	)) {
175	no strict 'refs';
176	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
177	}	291	}
178		292
179	$Event::DIED = sub {	293	$EV::DIED = sub {
180	warn "error in event callback: @_";	294	warn "error in event callback: @_";
181	};	295	};
		296
		297	#############################################################################
182		298
183	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
184		300
185	=over 4	301	=over 4
186		302
…		…
205	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
206	$d	322	$d
207	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
208	}	324	}
209		325
210	use JSON::Syck (); # TODO# replace by JSON::PC once working
211
212	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
213		327
214	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
215		329
216	=cut
217
218	sub from_json($) {
219	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
220	JSON::Syck::Load $_[0]
221	}
222
223	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
224		331
225	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
226		333
227	=cut	334	=cut
228		335
229	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
230	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
231	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
232	}	353	}
233		354
234	=item cf::lock_wait $string	355	=item cf::lock_wait $string
235		356
236	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
237		358
238	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
239		360
240	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
243	returned.	364	returned.
244		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
245	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
247		371
248	=cut	372	=item $locked = cf::lock_active $string
249		373
250	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
251		379
252	sub lock_wait($) {	380	sub lock_wait($) {
253	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
254
255	# wait for lock, if any
256	while ($LOCK{$key}) {
257	push @{ $LOCK{$key} }, $Coro::current;
258	Coro::schedule;
259	}
260	}	382	}
261		383
262	sub lock_acquire($) {	384	sub lock_acquire($) {
263	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
264		387
265	# wait, to be sure we are not locked	388	sub lock_active($) {
266	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
267
268	$LOCK{$key} = [];
269
270	Coro::guard {
271	# wake up all waiters, to be on the safe side
272	$_->ready for @{ delete $LOCK{$key} };
273	}
274	}	390	}
275		391
276	sub freeze_mainloop {	392	sub freeze_mainloop {
277	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
278		394
279	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
280	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
281	};	456	}
282	$TICK_WATCHER->stop;	457	};
283	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
284	}	471	}
285		472
286	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
287		474
288	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
293		480
294	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
295		482
296	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
297		484
298	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
299	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
300	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
301		489
302	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
303	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
304	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
305	fast or be very important.	493	fast or be very important.
…		…
308		496
309	sub sync_job(&) {	497	sub sync_job(&) {
310	my ($job) = @_;	498	my ($job) = @_;
311		499
312	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
313	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
314	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
315		505
316	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
317	# (but this is cancel-safe)	507
318	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
319		509
320	my $busy = 1;	510	my $busy = 1;
321	my @res;	511	my @res;
322		512
323	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
324	@res = eval { $job->() };	515	@res = eval { $job->() };
325	warn $@ if $@;	516	warn $@ if $@;
326	undef $busy;	517	undef $busy;
327	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
328		519
329	while ($busy) {	520	while ($busy) {
330	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
331	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
332		531
333	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
334	} else {	533	} else {
335	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
336		535
…		…
356	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
357		556
358	$coro	557	$coro
359	}	558	}
360		559
361	sub write_runtime {	560	=item fork_call { }, $args
362	my $guard = cf::lock_acquire "write_runtime";
363		561
364	my $runtime = cf::localdir . "/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
365		566
366	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
367	or return;
368		568
369	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
370	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
371	# 60 allows for the watchdog to kill the server.
372		571
373	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
374	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
375		575
376	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
377	aio_fsync $fh	577	reset_signals;
378	and return;	578	&$cb
		579	}, @args;
379		580
380	close $fh	581	wantarray ? @res : $res[-1]
381	or return;	582	}
382		583
383	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
384	and return;
385		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
386	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
387	}	747	}
388		748
389	=back	749	=back
390		750
391	=cut	751	=cut
392		752
393	#############################################################################	753	#############################################################################
394		754
395	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
396		756
397	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
400		760
401	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	763	Deliantra).
404		764
405	=over 4	765	=over 4
406		766
407	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
408		768
…		…
452	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
453		813
454	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
456		816
457	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
459		819
460	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
461		821
462	=over 4	822	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
572		932
573	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		937
578	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	939	my $pkg = shift @arg;
580		940
581	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
611	}	971	}
612		972
613	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
614	} else {	974	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	976	}
617		977
618	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
619	}	979	}
620		980
…		…
622	if (ref $_[0]) {	982	if (ref $_[0]) {
623	_object_attach @_;	983	_object_attach @_;
624	} else {	984	} else {
625	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
626	}	986	}
		987	_recalc_want;
627	};	988	};
628		989
629	# all those should be optimised	990	# all those should be optimised
630	sub cf::attachable::detach {	991	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
635	reattach ($obj);	996	reattach ($obj);
636	} else {	997	} else {
637	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
638	}	999	}
		1000	_recalc_want;
639	};	1001	};
640		1002
641	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
643		1005
…		…
658	";	1020	";
659	die if $@;	1021	die if $@;
660	}	1022	}
661		1023
662	our $override;	1024	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		1026
665	sub override {	1027	sub override {
666	$override = 1;	1028	$override = 1;
667	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
668	}	1030	}
669		1031
670	sub do_invoke {	1032	sub do_invoke {
671	my $event = shift;	1033	my $event = shift;
672	my $callbacks = shift;	1034	my $callbacks = shift;
673		1035
674	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
675		1037
676	local $override;	1038	local $override;
677		1039
678	for (@$callbacks) {	1040	for (@$callbacks) {
679	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
688	}	1050	}
689		1051
690	0	1052	0
691	}	1053	}
692		1054
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1056
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1058
697	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
698		1060
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1064
703	=back	1065	=back
704		1066
705	=cut	1067	=cut
706		1068
707	#############################################################################	1069	#############################################################################
708	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
709		1113
710	sub reattach {	1114	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1116	my ($obj) = @_;
713		1117
		1118	# no longer needed after getting rid of delete_package?
714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
715		1120
716	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
717		1122
718	@$registry = ();	1123	@$registry = ();
719		1124
…		…
734	cf::attachable->attach (	1139	cf::attachable->attach (
735	prio => -1000000,	1140	prio => -1000000,
736	on_instantiate => sub {	1141	on_instantiate => sub {
737	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
738		1143
739	$data = from_json $data;	1144	$data = decode_json $data;
740		1145
741	for (@$data) {	1146	for (@$data) {
742	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
743		1148
744	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1165	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
762		1167
763	sync_job {	1168	sync_job {
764	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
767		1173
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1179	aio_fsync $fh;
		1180	}
772	close $fh;	1181	aio_close $fh;
773		1182
774	if (@$objs) {	1183	if (@$objs) {
775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
776	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
779	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1190	aio_fsync $fh;
		1191	}
780	close $fh;	1192	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
782	}	1194	}
783	} else {	1195	} else {
784	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
785	}	1197	}
786		1198
787	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1203	} else {
789	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
790	}	1205	}
791	} else {	1206	} else {
792	aio_unlink $filename;	1207	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
794	}	1209	}
795	}	1210	};
796	}	1211	}
797		1212
798	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
800		1215
…		…
812	or return;	1227	or return;
813		1228
814	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
816	or return;	1231	or return;
		1232
817	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
818	}	1235	}
819		1236
		1237	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
822	return ($data, $av);	1241	($data, $av)
823	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
824		1249
825	#############################################################################	1250	#############################################################################
826	# command handling &c	1251	# command handling &c
827		1252
828	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1267	}
843		1268
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1270
846	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
847		1276
848	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
849	called.	1278	called.
850		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
851	=cut	1291	=cut
852		1292
853	sub register_extcmd {	1293	sub register_extcmd {
854	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
855		1295
856	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
857	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
858		1306
859	cf::player->attach (	1307	cf::player->attach (
860	on_command => sub {	1308	on_command => sub {
861	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
862		1310
…		…
870	cf::override;	1318	cf::override;
871	},	1319	},
872	on_extcmd => sub {	1320	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
874		1322
875	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1324
877	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
883	} else {	1340	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1342	}
886		1343
887	cf::override;	1344	cf::override;
888	},	1345	},
889	);	1346	);
890		1347
		1348	# "readahead" all extensions
891	sub load_extension {	1349	sub cache_extensions {
892	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
893		1351
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1355	}
919	die $@;
920	}	1356	};
921		1357
922	push @EXTS, $pkg;	1358	$grp
923	}	1359	}
924		1360
925	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
926	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1366	next unless -r $path;
928	eval {	1367
929	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
930	1	1424	}
931	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
932	}	1430	};
933	}	1431	}
934		1432
935	#############################################################################	1433	#############################################################################
936		1434
		1435	=back
		1436
937	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
938		1438
939	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
940		1440
941	=cut	1441	=cut
942		1442
943	package cf::player;	1443	package cf::player;
944		1444
…		…
946		1446
947	=head3 cf::player	1447	=head3 cf::player
948		1448
949	=over 4	1449	=over 4
950		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
951	=item cf::player::find $login	1465	=item cf::player::find $login
952		1466
953	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
954		1468
955	=cut	1469	=cut
956		1470
957	sub playerdir($) {	1471	sub playerdir($) {
958	cf::localdir	1472	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1474	}
964		1475
965	sub path($) {	1476	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1478
968	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
969	}	1480	}
970		1481
971	sub find_active($) {	1482	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
976		1487
977	sub exists($) {	1488	sub exists($) {
978	my ($login) = @_;	1489	my ($login) = @_;
979		1490
980	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
982	}	1493	}
983		1494
984	sub find($) {	1495	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1497	my $login = $_[0];
987		1498
988	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
989		1500
990	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
991	my $pl = load_pl path $login	1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
992	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
993	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
994	}	1518	}
995	}	1519	}
996	}	1520	}
997		1521
…		…
1006	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1007		1531
1008	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1009	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1010		1534
		1535	cf::get_slot 0.01;
		1536
1011	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1012	Coro::cede;	1538	cf::cede_to_tick;
1013	}	1539	}
1014		1540
1015	sub new($) {	1541	sub new($) {
1016	my ($login) = @_;	1542	my ($login) = @_;
1017		1543
…		…
1023	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1024		1550
1025	$self	1551	$self
1026	}	1552	}
1027		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1028	=item $pl->quit_character	1564	=item $pl->quit_character
1029		1565
1030	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1031	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1032		1568
…		…
1036	my ($pl) = @_;	1572	my ($pl) = @_;
1037		1573
1038	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1039		1575
1040	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1041	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1042		1578
1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1044	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1046	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1047		1585
1048	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1049	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1079	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1080		1618
1081	=cut	1619	=cut
1082		1620
1083	sub list_logins {	1621	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1623	or return [];
1086		1624
1087	my @logins;	1625	my @logins;
1088		1626
1089	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1091	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1092	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1093		1637
1094	utf8::decode $login;	1638	utf8::decode $login;
1095	push @logins, $login;	1639	push @logins, $login;
1096	}	1640	}
1097		1641
…		…
1124	}	1668	}
1125		1669
1126	\@paths	1670	\@paths
1127	}	1671	}
1128		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1129	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1130		1678
1131	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1132		1680
1133	=cut	1681	=cut
1134		1682
1135	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1136	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1137		1685
1138	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1139
1140	$self->send ("ext " . cf::to_json \%msg);
1141	}	1687	}
1142		1688
1143	package cf;	1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
		1716	my ($path) = @_;
		1717
		1718	my ($match, $specificity);
		1719
		1720	for my $region (list) {
		1721	if ($region->{match} && $path =~ $region->{match}) {
		1722	($match, $specificity) = ($region, $region->specificity)
		1723	if $region->specificity > $specificity;
		1724	}
		1725	}
		1726
		1727	$match
		1728	}
1144		1729
1145	=back	1730	=back
1146
1147		1731
1148	=head3 cf::map	1732	=head3 cf::map
1149		1733
1150	=over 4	1734	=over 4
1151		1735
…		…
1163	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1164	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1165		1749
1166	sub generate_random_map {	1750	sub generate_random_map {
1167	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1168	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1169	$self->_create_random_map (	1756	$self->_create_random_map (
1170	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1171	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1172	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1206	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1207		1794
1208	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1209	local $self->{path};	1796	local $self->{path};
1210	local $self->{load_path};	1797	local $self->{load_path};
1211	local $self->{deny_save};
1212	local $self->{deny_reset};
1213		1798
1214	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1215	}	1800	}
1216		1801
1217	sub normalise {	1802	sub normalise {
…		…
1264	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1265	return $self;	1850	return $self;
1266	}	1851	}
1267	}	1852	}
1268		1853
1269	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1270	()	1855	()
1271	}	1856	}
1272		1857
1273	sub init {	1858	sub init {
1274	my ($self) = @_;	1859	my ($self) = @_;
…		…
1289		1874
1290	# the original (read-only) location	1875	# the original (read-only) location
1291	sub load_path {	1876	sub load_path {
1292	my ($self) = @_;	1877	my ($self) = @_;
1293		1878
1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1295	}	1880	}
1296		1881
1297	# the temporary/swap location	1882	# the temporary/swap location
1298	sub save_path {	1883	sub save_path {
1299	my ($self) = @_;	1884	my ($self) = @_;
1300		1885
1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1303	}	1888	}
1304		1889
1305	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1306	sub uniq_path {	1891	sub uniq_path {
1307	my ($self) = @_;	1892	my ($self) = @_;
1308		1893
1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1311	}	1896	}
1312		1897
1313	# and all this just because we cannot iterate over	1898	sub decay_objects {
1314	# all maps in C++...
1315	sub change_all_map_light {
1316	my ($change) = @_;	1899	my ($self) = @_;
1317		1900
1318	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1319	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1320	}	1904	}
1321		1905
1322	sub unlink_save {	1906	sub unlink_save {
1323	my ($self) = @_;	1907	my ($self) = @_;
1324		1908
…		…
1329		1913
1330	sub load_header_from($) {	1914	sub load_header_from($) {
1331	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1332		1916
1333	utf8::encode $path;	1917	utf8::encode $path;
1334	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1335	# or return;
1336
1337	$self->_load_header ($path)
1338	or return;	1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1339		1926
1340	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1341		1928
1342	1	1929	1
1343	}	1930	}
…		…
1382	$self->load_header_orig	1969	$self->load_header_orig
1383	or return;	1970	or return;
1384	$self->prepare_orig;	1971	$self->prepare_orig;
1385	}	1972	}
1386		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
		1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
1387	1	1980	1
1388	}	1981	}
1389		1982
1390	sub find;	1983	sub find;
1391	sub find {	1984	sub find {
1392	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1393		1986
1394	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1395		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1396	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1397		1991
1398	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1399	my $guard = cf::lock_acquire "map_find:$path";
1400	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1401	or return;	1994	or return;
1402		1995
1403	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1404		1997
1405	$map->load_header	1998	$map->load_header
1406	or return;	1999	or return;
1407		2000
1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1409	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1410	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1411	$map->reset;	2006	$map->reset;
1412	undef $guard;
1413	return find $path;	2007	return find $path;
1414	}	2008	}
1415		2009
1416	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1417	}	2011	}
…		…
1424	my ($self) = @_;	2018	my ($self) = @_;
1425		2019
1426	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1427		2021
1428	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1429	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1430		2026
		2027	return unless $self->valid;
1431	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1432		2029
1433	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1434		2031
1435	$self->alloc;	2032	$self->alloc;
1436		2033
1437	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1438		2036
1439	$self->_load_objects ($self->{load_path}, 1)	2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1440	or return;	2040	or return;
1441		2041
1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1443	if delete $self->{load_original};	2043	if delete $self->{load_original};
1444		2044
1445	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1446	utf8::encode $uniq;	2046	utf8::encode $uniq;
1447	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1448	$self->clear_unique_items;	2049	$self->clear_unique_items;
1449	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1450	}	2053	}
1451	}	2054	}
1452		2055
1453	Coro::cede;	2056	$f->resolve_delayed_derefs;
1454		2057
		2058	cf::cede_to_tick;
1455	# now do the right thing for maps	2059	# now do the right thing for maps
1456	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1457
1458	unless ($self->{deny_activate}) {
1459	$self->decay_objects;
1460	$self->fix_auto_apply;
1461	$self->update_buttons;
1462	Coro::cede;
1463	$self->set_darkness_map;
1464	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1465	unless $self->difficulty;	2062	unless $self->difficulty;
1466	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1467	$self->activate;	2070	$self->activate;
		2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1468	}	2077	}
1469		2078
1470	$self->post_load;	2079	$self->post_load;
1471
1472	$self->in_memory (cf::MAP_IN_MEMORY);
1473	}	2080	}
1474		2081
1475	sub customise_for {	2082	sub customise_for {
1476	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1477		2084
1478	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1479	if $self->per_player;	2086	if $self->per_player;
1480		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1481	$self	2091	$self
1482	}	2092	}
1483		2093
1484	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1485	sub load_diag {	2095	sub load_neighbours {
1486	my ($map) = @_;	2096	my ($map) = @_;
1487		2097
1488	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1489		2099
1490	for (0 .. 3) {	2100	for (0 .. 3) {
1491	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1492	or next;	2102	or next;
1493	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1494	or next;	2104	or next;
1495	$neigh->load;	2105	$neigh->load;
1496		2106
		2107	push @neigh,
1497	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1498	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1499	}	2110	}
1500		2111
1501	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1502	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1503	or next;	2115	or next;
1504	$neigh->load;	2116	$neigh->load;
1505	}	2117	}
1506	}	2118	}
1507		2119
…		…
1512	}	2124	}
1513		2125
1514	sub do_load_sync {	2126	sub do_load_sync {
1515	my ($map) = @_;	2127	my ($map) = @_;
1516		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1517	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1518	}	2133	}
1519		2134
1520	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1521	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1522		2137
1523	sub find_async {	2138	sub find_async {
1524	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1525		2140
1526	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1527		2142
1528	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1529	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1530	}	2145	}
1531		2146
1532	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1533	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1534	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1535	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1536	my $map = find $path	2154	if (my $map = find $k) {
1537	or next;
1538	$map->load;	2155	$map->load if $v;
		2156	}
1539		2157
1540	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1541	}	2159	}
1542	}	2160	}
1543	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1544	};	2162	};
1545	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1548	}	2166	}
1549		2167
1550	sub save {	2168	sub save {
1551	my ($self) = @_;	2169	my ($self) = @_;
1552		2170
1553	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1554		2172
1555	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1556		2174
1557	return unless $self->dirty;	2175	return unless $self->dirty;
1558		2176
…		…
1564	return if $self->{deny_save};	2182	return if $self->{deny_save};
1565		2183
1566	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1567		2185
1568	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1569	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1570	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1571		2192
1572	if ($uniq) {	2193	if ($uniq) {
1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1574	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1575	} else {	2196	} else {
…		…
1581	my ($self) = @_;	2202	my ($self) = @_;
1582		2203
1583	# save first because save cedes	2204	# save first because save cedes
1584	$self->save;	2205	$self->save;
1585		2206
1586	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1587		2208
1588	return if $self->players;	2209	return if $self->players;
1589	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1590	return if $self->{deny_save};	2211	return if $self->{deny_save};
1591		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1592	$self->clear;	2217	$self->clear;
1593	$self->in_memory (cf::MAP_SWAPPED);
1594	}	2218	}
1595		2219
1596	sub reset_at {	2220	sub reset_at {
1597	my ($self) = @_;	2221	my ($self) = @_;
1598		2222
1599	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
1601	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1602		2225
1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1605		2228
…		…
1616	my ($self) = @_;	2239	my ($self) = @_;
1617		2240
1618	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1619		2242
1620	return if $self->players;	2243	return if $self->players;
1621	return if $self->isa ("ext::map_per_player");#d#
1622		2244
1623	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1624		2246
1625	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1626		2248
1627	# need to save uniques path	2249	# need to save uniques path
1628	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1632	if $uniq;	2254	if $uniq;
1633	}	2255	}
1634		2256
1635	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1636		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1637	$self->clear;	2261	$self->clear;
1638
1639	$_->clear_links_to ($self) for values %cf::MAP;
1640		2262
1641	$self->unlink_save;	2263	$self->unlink_save;
1642	$self->destroy;	2264	$self->destroy;
1643	}	2265	}
1644		2266
1645	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1646		2268
1647	sub nuke {	2269	sub nuke {
1648	my ($self) = @_;	2270	my ($self) = @_;
1649		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1650	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1651		2276
1652	$self->unlink_save;	2277	$self->unlink_save;
1653		2278
1654	bless $self, "cf::map";	2279	bless $self, "cf::map";
1655	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1656	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1657	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1658	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1659		2284
1660	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1661		2287
1662	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1663	}	2325	}
1664		2326
1665	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1666		2328
1667	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1668	instantiated unique items. May block.	2330	instantiated unique items. May block.
1669		2331
1670	=cut	2332	=cut
1671		2333
1672	sub unique_maps() {	2334	sub unique_maps() {
1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1674	or return;	2336	map {
1675
1676	my @paths;
1677
1678	for (@$files) {
1679	utf8::decode $_;	2337	utf8::decode $_;
1680	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1681	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1682		2340	? ()
1683	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1684	}	2343	]
1685
1686	\@paths
1687	}	2344	}
1688
1689	package cf;
1690		2345
1691	=back	2346	=back
1692		2347
1693	=head3 cf::object	2348	=head3 cf::object
1694		2349
…		…
1698		2353
1699	=over 4	2354	=over 4
1700		2355
1701	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1702		2357
1703	Returns the inventory of the object _and_ their inventories, recursively.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
1704		2360
1705	=cut	2361	=cut
1706		2362
1707	sub inv_recursive_;	2363	sub inv_recursive_;
1708	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1711		2367
1712	sub inv_recursive {	2368	sub inv_recursive {
1713	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1714	}	2370	}
1715		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
1716	package cf;	2400	package cf;
1717		2401
1718	=back	2402	=back
1719		2403
1720	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1726	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1727	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
1728	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1729		2413
1730	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
1731		2429
1732	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1733	# with dialog boxes.	2431	# with dialog boxes.
1734	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
1735	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1737		2435
1738	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1739		2437
1740	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1741	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1742	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
1743	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1744	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1745	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
1746	}	2463	}
1747		2464
1748	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1749		2466
1750	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1763		2480
1764	=item $player_object->enter_link	2481	=item $player_object->enter_link
1765		2482
1766	Freezes the player and moves him/her to a special map (C<{link}>).	2483	Freezes the player and moves him/her to a special map (C<{link}>).
1767		2484
1768	The player should be reasonably safe there for short amounts of time. You	2485	The player should be reasonably safe there for short amounts of time (e.g.
1769	I<MUST> call C<leave_link> as soon as possible, though.	2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
1770		2489
1771	Will never block.	2490	Will never block.
1772		2491
1773	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1774		2493
…		…
1797	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1798		2517
1799	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1800		2519
1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1802	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1803		2522
1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1805	}	2524	}
1806		2525
1807	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1808	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1809		2530
1810	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1811		2532
1812	unless ($map) {	2533	unless ($map) {
1813	# restore original map position	2534	# restore original map position
…		…
1827	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1828	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1829	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1830		2551
1831	$map->load;	2552	$map->load;
1832	$map->load_diag;	2553	$map->load_neighbours;
1833		2554
1834	return unless $self->contr->active;	2555	return unless $self->contr->active;
1835	$self->activate_recursive;
1836		2556
1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1838	$self->enter_map ($map, $x, $y);	2558	$self->enter_map ($map, $x, $y);
1839	}
1840		2559
1841	cf::player->attach (	2560	# only activate afterwards, to support waiting in hooks
1842	on_logout => sub {	2561	$self->activate_recursive;
1843	my ($pl) = @_;	2562	}
1844		2563
1845	# abort map switching before logout	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1846	if ($pl->ob->{_link_pos}) {
1847	cf::sync_job {
1848	$pl->ob->leave_link
1849	};
1850	}
1851	},
1852	on_login => sub {
1853	my ($pl) = @_;
1854		2565
1855	# try to abort aborted map switching on player login :)	2566	Moves the player to the given map-path and coordinates by first freezing
1856	# should happen only on crashes	2567	her, loading and preparing them map, calling the provided $check callback
1857	if ($pl->ob->{_link_pos}) {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1858	$pl->ob->enter_link;	2569	the new (success) or old (failed) map position. In either case, $done will
1859	(async {	2570	be called at the end of this process.
1860	$pl->ob->reply (undef,
1861	"There was an internal problem at your last logout, "
1862	. "the server will try to bring you to your intended destination in a second.",
1863	cf::NDI_RED);
1864	# we need this sleep as the login has a concurrent enter_exit running
1865	# and this sleep increases chances of the player not ending up in scorn
1866	Coro::Timer::sleep 1;
1867	$pl->ob->leave_link;
1868	})->prio (2);
1869	}
1870	},
1871	);
1872		2571
1873	=item $player_object->goto ($path, $x, $y)	2572	Note that $check will be called with a potentially non-loaded map, so if
		2573	it needs a loaded map it has to call C<< ->load >>.
1874		2574
1875	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1876		2578
1877	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1878	my ($self, $path, $x, $y) = @_;	2580	my ($self, $path, $x, $y, $check, $done) = @_;
		2581
		2582	# do generation counting so two concurrent goto's will be executed in-order
		2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1879		2584
1880	$self->enter_link;	2585	$self->enter_link;
1881		2586
1882	(async {	2587	(async {
		2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
1883	my $map = eval {	2609	my $map = eval {
1884	my $map = cf::map::find $path;	2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1885	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
		2614	$map = $check->($map) if $check && $map;
		2615	} else {
		2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618
1886	$map	2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
1887	} or	2625	}
1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1889		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1890	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1891	})->prio (1);	2633	})->prio (1);
1892	}	2634	}
1893		2635
1894	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1895		2637
…		…
1915	}	2657	}
1916		2658
1917	sub prepare_random_map {	2659	sub prepare_random_map {
1918	my ($exit) = @_;	2660	my ($exit) = @_;
1919		2661
1920	my $guard = cf::lock_acquire "exit_prepare:$exit";
1921
1922	# all this does is basically replace the /! path by	2662	# all this does is basically replace the /! path by
1923	# a new random map path (?random/...) with a seed	2663	# a new random map path (?random/...) with a seed
1924	# that depends on the exit object	2664	# that depends on the exit object
1925		2665
1926	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
…		…
1928	if ($exit->map) {	2668	if ($exit->map) {
1929	$rmp->{region} = $exit->region->name;	2669	$rmp->{region} = $exit->region->name;
1930	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
1931	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
1932	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
1933	}	2675	}
1934		2676
1935	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
1936		2678
1937	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1938	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2681	my $meta = "$RANDOMDIR/$md5.meta";
1940		2682
1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1942	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
1943	undef $fh;	2685	undef $fh;
1944	aio_rename "$meta~", $meta;	2686	aio_rename "$meta~", $meta;
1945		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
1946	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
1947	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
1948	}	2694	}
1949	}	2695	}
1950		2696
1951	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
1952	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
1953		2699
1954	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
1955		2701
1956	if ($exit->slaying eq "/!") {
1957	#TODO: this should de-fi-ni-te-ly not be a sync-job
1958	cf::sync_job { prepare_random_map $exit };
1959	}
1960
1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962	my $hp = $exit->stats->hp;
1963	my $sp = $exit->stats->sp;
1964
1965	$self->enter_link;	2702	$self->enter_link;
1966		2703
1967	(async {	2704	(async {
1968	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
1969	unless (eval {	2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
		2714	prepare_random_map $exit
		2715	if $exit->slaying eq "/!";
		2716	}
		2717
		2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
		2721
1970	$self->goto ($slaying, $hp, $sp);	2722	$self->goto ($map, $x, $y);
1971		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
1972	1;	2728	1
1973	}) {	2729	}) {
1974	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
1975	. "I'll try to bring you back to the map you were before. "	2731	. "I'll try to bring you back to the map you were before. "
1976	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
1977	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
1978		2734
1979	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
1980	$self->leave_link;	2736	$self->leave_link;
1981	}	2737	}
1982	})->prio (1);	2738	})->prio (1);
…		…
1998		2754
1999	utf8::encode $text;	2755	utf8::encode $text;
2000	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2001	}	2757	}
2002		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/motd" => {
		2771	id => "infobox",
		2772	title => "MOTD",
		2773	reply => undef,
		2774	tooltip => "The message of the day",
		2775	},
		2776	"c/identify" => {
		2777	id => "infobox",
		2778	title => "Identify",
		2779	reply => undef,
		2780	tooltip => "Items recently identified",
		2781	},
		2782	"c/examine" => {
		2783	id => "infobox",
		2784	title => "Examine",
		2785	reply => undef,
		2786	tooltip => "Signs and other items you examined",
		2787	},
		2788	"c/book" => {
		2789	id => "infobox",
		2790	title => "Book",
		2791	reply => undef,
		2792	tooltip => "The contents of a note or book",
		2793	},
		2794	"c/lookat" => {
		2795	id => "infobox",
		2796	title => "Look",
		2797	reply => undef,
		2798	tooltip => "What you saw there",
		2799	},
		2800	"c/who" => {
		2801	id => "infobox",
		2802	title => "Players",
		2803	reply => undef,
		2804	tooltip => "Shows players who are currently online",
		2805	},
		2806	"c/body" => {
		2807	id => "infobox",
		2808	title => "Body Parts",
		2809	reply => undef,
		2810	tooltip => "Shows which body parts you posess and are available",
		2811	},
		2812	"c/statistics" => {
		2813	id => "infobox",
		2814	title => "Statistics",
		2815	reply => undef,
		2816	tooltip => "Shows your primary statistics",
		2817	},
		2818	"c/skills" => {
		2819	id => "infobox",
		2820	title => "Skills",
		2821	reply => undef,
		2822	tooltip => "Shows your experience per skill and item power",
		2823	},
		2824	"c/shopitems" => {
		2825	id => "infobox",
		2826	title => "Shop Items",
		2827	reply => undef,
		2828	tooltip => "Shows the items currently for sale in this shop",
		2829	},
		2830	"c/resistances" => {
		2831	id => "infobox",
		2832	title => "Resistances",
		2833	reply => undef,
		2834	tooltip => "Shows your resistances",
		2835	},
		2836	"c/pets" => {
		2837	id => "infobox",
		2838	title => "Pets",
		2839	reply => undef,
		2840	tooltip => "Shows information abotu your pets/a specific pet",
		2841	},
		2842	"c/perceiveself" => {
		2843	id => "infobox",
		2844	title => "Perceive Self",
		2845	reply => undef,
		2846	tooltip => "You gained detailed knowledge about yourself",
		2847	},
		2848	"c/uptime" => {
		2849	id => "infobox",
		2850	title => "Uptime",
		2851	reply => undef,
		2852	tooltip => "How long the server has been running since last restart",
		2853	},
		2854	"c/mapinfo" => {
		2855	id => "infobox",
		2856	title => "Map Info",
		2857	reply => undef,
		2858	tooltip => "Information related to the maps",
		2859	},
		2860	"c/party" => {
		2861	id => "party",
		2862	title => "Party",
		2863	reply => "gsay ",
		2864	tooltip => "Messages and chat related to your party",
		2865	},
		2866	"c/death" => {
		2867	id => "death",
		2868	title => "Death",
		2869	reply => undef,
		2870	tooltip => "Reason for and more info about your most recent death",
		2871	},
		2872	"c/say" => $SAY_CHANNEL,
		2873	"c/chat" => $CHAT_CHANNEL,
		2874	);
		2875
		2876	sub cf::client::send_msg {
		2877	my ($self, $channel, $msg, $color, @extra) = @_;
		2878
		2879	$msg = $self->pl->expand_cfpod ($msg)
		2880	unless $color & cf::NDI_VERBATIM;
		2881
		2882	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2883
		2884	# check predefined channels, for the benefit of C
		2885	if ($CHANNEL{$channel}) {
		2886	$channel = $CHANNEL{$channel};
		2887
		2888	$self->ext_msg (channel_info => $channel);
		2889	$channel = $channel->{id};
		2890
		2891	} elsif (ref $channel) {
		2892	# send meta info to client, if not yet sent
		2893	unless (exists $self->{channel}{$channel->{id}}) {
		2894	$self->{channel}{$channel->{id}} = $channel;
		2895	$self->ext_msg (channel_info => $channel);
		2896	}
		2897
		2898	$channel = $channel->{id};
		2899	}
		2900
		2901	return unless @extra || length $msg;
		2902
		2903	# default colour, mask it out
		2904	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2905	if $color & cf::NDI_DEF;
		2906
		2907	my $pkt = "msg "
		2908	. $self->{json_coder}->encode (
		2909	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2910	);
		2911
		2912	# try lzf for large packets
		2913	$pkt = "lzf " . Compress::LZF::compress $pkt
		2914	if 1024 <= length $pkt and $self->{can_lzf};
		2915
		2916	# split very large packets
		2917	if (8192 < length $pkt and $self->{can_lzf}) {
		2918	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2919	$pkt = "frag";
		2920	}
		2921
		2922	$self->send_packet ($pkt);
		2923	}
		2924
		2925	=item $client->ext_msg ($type, @msg)
		2926
		2927	Sends an ext event to the client.
		2928
		2929	=cut
		2930
		2931	sub cf::client::ext_msg($$@) {
		2932	my ($self, $type, @msg) = @_;
		2933
		2934	if ($self->extcmd == 2) {
		2935	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2936	} elsif ($self->extcmd == 1) { # TODO: remove
		2937	push @msg, msgtype => "event_$type";
		2938	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2939	}
		2940	}
		2941
		2942	=item $client->ext_reply ($msgid, @msg)
		2943
		2944	Sends an ext reply to the client.
		2945
		2946	=cut
		2947
		2948	sub cf::client::ext_reply($$@) {
		2949	my ($self, $id, @msg) = @_;
		2950
		2951	if ($self->extcmd == 2) {
		2952	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2953	} elsif ($self->extcmd == 1) {
		2954	#TODO: version 1, remove
		2955	unshift @msg, msgtype => "reply", msgid => $id;
		2956	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2957	}
		2958	}
2003		2959
2004	=item $success = $client->query ($flags, "text", \&cb)	2960	=item $success = $client->query ($flags, "text", \&cb)
2005		2961
2006	Queues a query to the client, calling the given callback with	2962	Queues a query to the client, calling the given callback with
2007	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2963	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2008	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2964	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2009		2965
2010	Queries can fail, so check the return code. Or don't, as queries will become	2966	Queries can fail, so check the return code. Or don't, as queries will
2011	reliable at some point in the future.	2967	become reliable at some point in the future.
2012		2968
2013	=cut	2969	=cut
2014		2970
2015	sub cf::client::query {	2971	sub cf::client::query {
2016	my ($self, $flags, $text, $cb) = @_;	2972	my ($self, $flags, $text, $cb) = @_;
…		…
2024	utf8::encode $text;	2980	utf8::encode $text;
2025	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2981	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2026		2982
2027	$self->send_packet ($self->{query_queue}[0][0])	2983	$self->send_packet ($self->{query_queue}[0][0])
2028	if @{ $self->{query_queue} } == 1;	2984	if @{ $self->{query_queue} } == 1;
		2985
		2986	1
2029	}	2987	}
2030		2988
2031	cf::client->attach (	2989	cf::client->attach (
		2990	on_connect => sub {
		2991	my ($ns) = @_;
		2992
		2993	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2994	},
2032	on_reply => sub {	2995	on_reply => sub {
2033	my ($ns, $msg) = @_;	2996	my ($ns, $msg) = @_;
2034		2997
2035	# this weird shuffling is so that direct followup queries	2998	# this weird shuffling is so that direct followup queries
2036	# get handled first	2999	# get handled first
…		…
2048	} else {	3011	} else {
2049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3012	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2050	}	3013	}
2051	}	3014	}
2052	},	3015	},
		3016	on_exticmd => sub {
		3017	my ($ns, $buf) = @_;
		3018
		3019	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3020
		3021	if (ref $msg) {
		3022	my ($type, $reply, @payload) =
		3023	"ARRAY" eq ref $msg
		3024	? @$msg
		3025	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3026
		3027	my @reply;
		3028
		3029	if (my $cb = $EXTICMD{$type}) {
		3030	@reply = $cb->($ns, @payload);
		3031	}
		3032
		3033	$ns->ext_reply ($reply, @reply)
		3034	if $reply;
		3035
		3036	} else {
		3037	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3038	}
		3039
		3040	cf::override;
		3041	},
2053	);	3042	);
2054		3043
2055	=item $client->async (\&cb)	3044	=item $client->async (\&cb)
2056		3045
2057	Create a new coroutine, running the specified callback. The coroutine will	3046	Create a new coroutine, running the specified callback. The coroutine will
…		…
2098	our $safe = new Safe "safe";	3087	our $safe = new Safe "safe";
2099	our $safe_hole = new Safe::Hole;	3088	our $safe_hole = new Safe::Hole;
2100		3089
2101	$SIG{FPE} = 'IGNORE';	3090	$SIG{FPE} = 'IGNORE';
2102		3091
2103	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3092	$safe->permit_only (Opcode::opset qw(
		3093	:base_core :base_mem :base_orig :base_math
		3094	grepstart grepwhile mapstart mapwhile
		3095	sort time
		3096	));
2104		3097
2105	# here we export the classes and methods available to script code	3098	# here we export the classes and methods available to script code
2106		3099
2107	=pod	3100	=pod
2108		3101
2109	The following fucntions and emthods are available within a safe environment:	3102	The following functions and methods are available within a safe environment:
2110		3103
2111	cf::object contr pay_amount pay_player map	3104	cf::object
		3105	contr pay_amount pay_player map x y force_find force_add destroy
		3106	insert remove name archname title slaying race decrease split
		3107	value
		3108
2112	cf::object::player player	3109	cf::object::player
2113	cf::player peaceful	3110	player
2114	cf::map trigger	3111
		3112	cf::player
		3113	peaceful
		3114
		3115	cf::map
		3116	trigger
2115		3117
2116	=cut	3118	=cut
2117		3119
2118	for (	3120	for (
2119	["cf::object" => qw(contr pay_amount pay_player map)],	3121	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3122	insert remove inv nrof name archname title slaying race
		3123	decrease split destroy change_exp value msg lore send_msg)],
2120	["cf::object::player" => qw(player)],	3124	["cf::object::player" => qw(player)],
2121	["cf::player" => qw(peaceful)],	3125	["cf::player" => qw(peaceful send_msg)],
2122	["cf::map" => qw(trigger)],	3126	["cf::map" => qw(trigger)],
2123	) {	3127	) {
2124	no strict 'refs';	3128	no strict 'refs';
2125	my ($pkg, @funs) = @$_;	3129	my ($pkg, @funs) = @$_;
2126	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3130	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2143	my ($code, %vars) = @_;	3147	my ($code, %vars) = @_;
2144		3148
2145	my $qcode = $code;	3149	my $qcode = $code;
2146	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3150	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2147	$qcode =~ s/\n/\\n/g;	3151	$qcode =~ s/\n/\\n/g;
		3152
		3153	%vars = (_dummy => 0) unless %vars;
2148		3154
2149	local $_;	3155	local $_;
2150	local @safe::cf::_safe_eval_args = values %vars;	3156	local @safe::cf::_safe_eval_args = values %vars;
2151		3157
2152	my $eval =	3158	my $eval =
…		…
2195	=back	3201	=back
2196		3202
2197	=cut	3203	=cut
2198		3204
2199	#############################################################################	3205	#############################################################################
2200
2201	=head2 EXTENSION DATABASE SUPPORT
2202
2203	Crossfire maintains a very simple database for extension use. It can
2204	currently store anything that can be serialised using Storable, which
2205	excludes objects.
2206
2207	The parameter C<$family> should best start with the name of the extension
2208	using it, it should be unique.
2209
2210	=over 4
2211
2212	=item $value = cf::db_get $family => $key
2213
2214	Returns a single value from the database.
2215
2216	=item cf::db_put $family => $key => $value
2217
2218	Stores the given C<$value> in the family.
2219
2220	=cut
2221
2222	our $DB;
2223
2224	sub db_init {
2225	unless ($DB) {
2226	$DB = BDB::db_create $DB_ENV;
2227
2228	cf::sync_job {
2229	eval {
2230	$DB->set_flags (BDB::CHKSUM);
2231
2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234	cf::cleanup "db_open(db): $!" if $!;
2235	};
2236	cf::cleanup "db_open(db): $@" if $@;
2237	};
2238
2239	my $path = cf::localdir . "/database.pst";
2240	if (stat $path) {
2241	cf::sync_job {
2242	my $pst = Storable::retrieve $path;
2243
2244	cf::db_put (board => data => $pst->{board});
2245	cf::db_put (guildrules => data => $pst->{guildrules});
2246	cf::db_put (rent => balance => $pst->{rent}{balance});
2247	BDB::db_env_txn_checkpoint $DB_ENV;
2248
2249	unlink $path;
2250	};
2251	}
2252	}
2253	}
2254
2255	sub db_get($$) {
2256	my $key = "$_[0]/$_[1]";
2257
2258	cf::sync_job {
2259	BDB::db_get $DB, undef, $key, my $data;
2260
2261	$! ? ()
2262	: Compress::LZF::sthaw $data
2263	}
2264	}
2265
2266	sub db_put($$$) {
2267	BDB::dbreq_pri 4;
2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269	}
2270
2271	#############################################################################
2272	# the server's init and main functions	3206	# the server's init and main functions
2273		3207
2274	sub load_faces {	3208	sub load_facedata($) {
2275	my $path = sprintf "%s/faces", cf::datadir;	3209	my ($path) = @_;
2276		3210
		3211	# HACK to clear player env face cache, we need some signal framework
		3212	# for this (global event?)
		3213	%ext::player_env::MUSIC_FACE_CACHE = ();
		3214
		3215	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3216
2277	warn "loading faces from $path\n";	3217	warn "loading facedata from $path\n";
2278		3218
2279	my $faces;	3219	my $facedata;
2280	0 < aio_load $path, $faces	3220	0 < aio_load $path, $facedata
2281	or die "$path: $!";	3221	or die "$path: $!";
2282		3222
2283	Coro::cede;
2284	$faces = Storable::thaw $faces;	3223	$facedata = Coro::Storable::thaw $facedata;
2285	Coro::cede;
2286		3224
		3225	$facedata->{version} == 2
		3226	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3227
		3228	# patch in the exptable
		3229	$facedata->{resource}{"res/exp_table"} = {
		3230	type => FT_RSRC,
		3231	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3232	};
		3233	cf::cede_to_tick;
		3234
		3235	{
		3236	my $faces = $facedata->{faceinfo};
		3237
2287	while (my ($face, $info) = each %$faces) {	3238	while (my ($face, $info) = each %$faces) {
2288	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3239	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2289	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3240
		3241	cf::face::set_visibility $idx, $info->{visibility};
		3242	cf::face::set_magicmap $idx, $info->{magicmap};
2290	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3243	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2291	Coro::cede;	3244	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2292	}
2293		3245
		3246	cf::cede_to_tick;
		3247	}
		3248
2294	while (my ($face, $info) = each %$faces) {	3249	while (my ($face, $info) = each %$faces) {
2295	next unless $info->{smooth};	3250	next unless $info->{smooth};
		3251
2296	my $idx = cf::face::find $face	3252	my $idx = cf::face::find $face
2297	or next;	3253	or next;
		3254
2298	if (my $smooth = cf::face::find $info->{smooth}) {	3255	if (my $smooth = cf::face::find $info->{smooth}) {
2299	cf::face::set_smooth $idx, $smooth;	3256	cf::face::set_smooth $idx, $smooth;
2300	warn "smooth $idx,$smooth ($face,$info->{smooth})\n";#d#	3257	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2301	} else {	3258	} else {
2302	warn "smooth face '$info->{smooth}' not found for face '$face'";	3259	warn "smooth face '$info->{smooth}' not found for face '$face'";
2303	}	3260	}
2304	Coro::cede;	3261
		3262	cf::cede_to_tick;
		3263	}
		3264	}
		3265
2305	}	3266	{
		3267	my $anims = $facedata->{animinfo};
		3268
		3269	while (my ($anim, $info) = each %$anims) {
		3270	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3271	cf::cede_to_tick;
		3272	}
		3273
		3274	cf::anim::invalidate_all; # d'oh
		3275	}
		3276
		3277	{
		3278	# TODO: for gcfclient pleasure, we should give resources
		3279	# that gcfclient doesn't grok a >10000 face index.
		3280	my $res = $facedata->{resource};
		3281
		3282	while (my ($name, $info) = each %$res) {
		3283	if (defined $info->{type}) {
		3284	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3285	my $data;
		3286
		3287	if ($info->{type} & 1) {
		3288	# prepend meta info
		3289
		3290	my $meta = $enc->encode ({
		3291	name => $name,
		3292	%{ $info->{meta} || {} },
		3293	});
		3294
		3295	$data = pack "(w/a*)*", $meta, $info->{data};
		3296	} else {
		3297	$data = $info->{data};
		3298	}
		3299
		3300	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3301	cf::face::set_type $idx, $info->{type};
		3302	} else {
		3303	$RESOURCE{$name} = $info;
		3304	}
		3305
		3306	cf::cede_to_tick;
		3307	}
		3308	}
		3309
		3310	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
2306		3311
2307	1	3312	1
2308	}	3313	}
2309		3314
		3315	cf::global->attach (on_resource_update => sub {
		3316	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3317	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3318
		3319	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3320	my $sound = $soundconf->{compat}[$_]
		3321	or next;
		3322
		3323	my $face = cf::face::find "sound/$sound->[1]";
		3324	cf::sound::set $sound->[0] => $face;
		3325	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3326	}
		3327
		3328	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3329	my $face = cf::face::find "sound/$v";
		3330	cf::sound::set $k => $face;
		3331	}
		3332	}
		3333	});
		3334
		3335	register_exticmd fx_want => sub {
		3336	my ($ns, $want) = @_;
		3337
		3338	while (my ($k, $v) = each %$want) {
		3339	$ns->fx_want ($k, $v);
		3340	}
		3341	};
		3342
		3343	sub load_resource_file($) {
		3344	my $guard = lock_acquire "load_resource_file";
		3345
		3346	my $status = load_resource_file_ $_[0];
		3347	get_slot 0.1, 100;
		3348	cf::arch::commit_load;
		3349
		3350	$status
		3351	}
		3352
		3353	sub reload_regions {
		3354	# HACK to clear player env face cache, we need some signal framework
		3355	# for this (global event?)
		3356	%ext::player_env::MUSIC_FACE_CACHE = ();
		3357
		3358	load_resource_file "$MAPDIR/regions"
		3359	or die "unable to load regions file\n";
		3360
		3361	for (cf::region::list) {
		3362	$_->{match} = qr/$_->{match}/
		3363	if exists $_->{match};
		3364	}
		3365	}
		3366
		3367	sub reload_facedata {
		3368	load_facedata "$DATADIR/facedata"
		3369	or die "unable to load facedata\n";
		3370	}
		3371
		3372	sub reload_archetypes {
		3373	load_resource_file "$DATADIR/archetypes"
		3374	or die "unable to load archetypes\n";
		3375	}
		3376
		3377	sub reload_treasures {
		3378	load_resource_file "$DATADIR/treasures"
		3379	or die "unable to load treasurelists\n";
		3380	}
		3381
2310	sub reload_resources {	3382	sub reload_resources {
2311	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3383	warn "reloading resource files...\n";
2312	or die "unable to load regions file\n";#d#	3384
2313	load_faces	3385	reload_facedata;
2314	or die "unable to load faces\n";#d#	3386	reload_archetypes;
2315	}
2316
2317	sub init {
2318	reload_resources;	3387	reload_regions;
2319	}	3388	reload_treasures;
2320		3389
2321	sub cfg_load {	3390	warn "finished reloading resource files\n";
		3391	}
		3392
		3393	sub reload_config {
		3394	warn "reloading config file...\n";
		3395
2322	open my $fh, "<:utf8", cf::confdir . "/config"	3396	open my $fh, "<:utf8", "$CONFDIR/config"
2323	or return;	3397	or return;
2324		3398
2325	local $/;	3399	local $/;
2326	*CFG = YAML::Syck::Load <$fh>;	3400	*CFG = YAML::XS::Load scalar <$fh>;
2327		3401
2328	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3402	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2329		3403
2330	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3404	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2331	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3405	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2335	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3409	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2336	and die "WARNING: m(un)lockall failed: $!\n";	3410	and die "WARNING: m(un)lockall failed: $!\n";
2337	};	3411	};
2338	warn $@ if $@;	3412	warn $@ if $@;
2339	}	3413	}
		3414
		3415	warn "finished reloading resource files\n";
		3416	}
		3417
		3418	sub pidfile() {
		3419	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3420	or die "$PIDFILE: $!";
		3421	flock $fh, &Fcntl::LOCK_EX
		3422	or die "$PIDFILE: flock: $!";
		3423	$fh
		3424	}
		3425
		3426	# make sure only one server instance is running at any one time
		3427	sub atomic {
		3428	my $fh = pidfile;
		3429
		3430	my $pid = <$fh>;
		3431	kill 9, $pid if $pid > 0;
		3432
		3433	seek $fh, 0, 0;
		3434	print $fh $$;
		3435	}
		3436
		3437	sub main_loop {
		3438	warn "EV::loop starting\n";
		3439	if (1) {
		3440	EV::loop;
		3441	}
		3442	warn "EV::loop returned\n";
		3443	goto &main_loop unless $REALLY_UNLOOP;
2340	}	3444	}
2341		3445
2342	sub main {	3446	sub main {
		3447	cf::init_globals; # initialise logging
		3448
		3449	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3450	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3451	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3452	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3453
		3454	cf::init_experience;
		3455	cf::init_anim;
		3456	cf::init_attackmess;
		3457	cf::init_dynamic;
		3458
		3459	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3460
2343	# we must not ever block the main coroutine	3461	# we must not ever block the main coroutine
2344	local $Coro::idle = sub {	3462	local $Coro::idle = sub {
2345	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3463	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2346	(async {	3464	(async {
2347	Event::one_event;	3465	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3466	EV::loop EV::LOOP_ONESHOT;
2348	})->prio (Coro::PRIO_MAX);	3467	})->prio (Coro::PRIO_MAX);
2349	};	3468	};
2350		3469
2351	cfg_load;	3470	evthread_start IO::AIO::poll_fileno;
		3471
		3472	cf::sync_job {
		3473	reload_resources;
		3474	reload_config;
2352	db_init;	3475	db_init;
		3476
		3477	cf::load_settings;
		3478	cf::load_materials;
		3479	cf::init_uuid;
		3480	cf::init_signals;
		3481	cf::init_commands;
		3482	cf::init_skills;
		3483
		3484	cf::init_beforeplay;
		3485
		3486	atomic;
		3487
2353	load_extensions;	3488	load_extensions;
2354		3489
2355	$TICK_WATCHER->start;	3490	utime time, time, $RUNTIMEFILE;
2356	Event::loop;	3491
		3492	# no (long-running) fork's whatsoever before this point(!)
		3493	use POSIX ();
		3494	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3495
		3496	(pop @POST_INIT)->(0) while @POST_INIT;
		3497	};
		3498
		3499	main_loop;
2357	}	3500	}
2358		3501
2359	#############################################################################	3502	#############################################################################
2360	# initialisation and cleanup	3503	# initialisation and cleanup
2361		3504
2362	# install some emergency cleanup handlers	3505	# install some emergency cleanup handlers
2363	BEGIN {	3506	BEGIN {
		3507	our %SIGWATCHER = ();
2364	for my $signal (qw(INT HUP TERM)) {	3508	for my $signal (qw(INT HUP TERM)) {
2365	Event->signal (	3509	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2366	reentrant => 0,
2367	data => WF_AUTOCANCEL,
2368	signal => $signal,
2369	prio => 0,
2370	cb => sub {
2371	cf::cleanup "SIG$signal";	3510	cf::cleanup "SIG$signal";
2372	},
2373	);	3511	};
		3512	}
		3513	}
		3514
		3515	sub write_runtime_sync {
		3516	# first touch the runtime file to show we are still running:
		3517	# the fsync below can take a very very long time.
		3518
		3519	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3520
		3521	my $guard = cf::lock_acquire "write_runtime";
		3522
		3523	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3524	or return;
		3525
		3526	my $value = $cf::RUNTIME + 90 + 10;
		3527	# 10 is the runtime save interval, for a monotonic clock
		3528	# 60 allows for the watchdog to kill the server.
		3529
		3530	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3531	and return;
		3532
		3533	# always fsync - this file is important
		3534	aio_fsync $fh
		3535	and return;
		3536
		3537	# touch it again to show we are up-to-date
		3538	aio_utime $fh, undef, undef;
		3539
		3540	close $fh
		3541	or return;
		3542
		3543	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3544	and return;
		3545
		3546	warn "runtime file written.\n";
		3547
2374	}	3548	1
		3549	}
		3550
		3551	our $uuid_lock;
		3552	our $uuid_skip;
		3553
		3554	sub write_uuid_sync($) {
		3555	$uuid_skip ||= $_[0];
		3556
		3557	return if $uuid_lock;
		3558	local $uuid_lock = 1;
		3559
		3560	my $uuid = "$LOCALDIR/uuid";
		3561
		3562	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3563	or return;
		3564
		3565	my $value = uuid_seq uuid_cur;
		3566
		3567	unless ($value) {
		3568	warn "cowardly refusing to write zero uuid value!\n";
		3569	return;
		3570	}
		3571
		3572	my $value = uuid_str $value + $uuid_skip;
		3573	$uuid_skip = 0;
		3574
		3575	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3576	and return;
		3577
		3578	# always fsync - this file is important
		3579	aio_fsync $fh
		3580	and return;
		3581
		3582	close $fh
		3583	or return;
		3584
		3585	aio_rename "$uuid~", $uuid
		3586	and return;
		3587
		3588	warn "uuid file written ($value).\n";
		3589
		3590	1
		3591
		3592	}
		3593
		3594	sub write_uuid($$) {
		3595	my ($skip, $sync) = @_;
		3596
		3597	$sync ? write_uuid_sync $skip
		3598	: async { write_uuid_sync $skip };
2375	}	3599	}
2376		3600
2377	sub emergency_save() {	3601	sub emergency_save() {
2378	my $freeze_guard = cf::freeze_mainloop;	3602	my $freeze_guard = cf::freeze_mainloop;
2379		3603
2380	warn "enter emergency perl save\n";	3604	warn "emergency_perl_save: enter\n";
2381		3605
2382	cf::sync_job {	3606	cf::sync_job {
		3607	# this is a trade-off: we want to be very quick here, so
		3608	# save all maps without fsync, and later call a global sync
		3609	# (which in turn might be very very slow)
		3610	local $USE_FSYNC = 0;
		3611
2383	# use a peculiar iteration method to avoid tripping on perl	3612	# use a peculiar iteration method to avoid tripping on perl
2384	# refcount bugs in for. also avoids problems with players	3613	# refcount bugs in for. also avoids problems with players
2385	# and maps saved/destroyed asynchronously.	3614	# and maps saved/destroyed asynchronously.
2386	warn "begin emergency player save\n";	3615	warn "emergency_perl_save: begin player save\n";
2387	for my $login (keys %cf::PLAYER) {	3616	for my $login (keys %cf::PLAYER) {
2388	my $pl = $cf::PLAYER{$login} or next;	3617	my $pl = $cf::PLAYER{$login} or next;
2389	$pl->valid or next;	3618	$pl->valid or next;
		3619	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2390	$pl->save;	3620	$pl->save;
2391	}	3621	}
2392	warn "end emergency player save\n";	3622	warn "emergency_perl_save: end player save\n";
2393		3623
2394	warn "begin emergency map save\n";	3624	warn "emergency_perl_save: begin map save\n";
2395	for my $path (keys %cf::MAP) {	3625	for my $path (keys %cf::MAP) {
2396	my $map = $cf::MAP{$path} or next;	3626	my $map = $cf::MAP{$path} or next;
2397	$map->valid or next;	3627	$map->valid or next;
2398	$map->save;	3628	$map->save;
2399	}	3629	}
2400	warn "end emergency map save\n";	3630	warn "emergency_perl_save: end map save\n";
2401		3631
2402	warn "begin emergency database checkpoint\n";	3632	warn "emergency_perl_save: begin database checkpoint\n";
2403	BDB::db_env_txn_checkpoint $DB_ENV;	3633	BDB::db_env_txn_checkpoint $DB_ENV;
2404	warn "end emergency database checkpoint\n";	3634	warn "emergency_perl_save: end database checkpoint\n";
		3635
		3636	warn "emergency_perl_save: begin write uuid\n";
		3637	write_uuid_sync 1;
		3638	warn "emergency_perl_save: end write uuid\n";
2405	};	3639	};
2406		3640
		3641	warn "emergency_perl_save: starting sync()\n";
		3642	IO::AIO::aio_sync sub {
		3643	warn "emergency_perl_save: finished sync()\n";
		3644	};
		3645
2407	warn "leave emergency perl save\n";	3646	warn "emergency_perl_save: leave\n";
2408	}	3647	}
2409		3648
2410	sub post_cleanup {	3649	sub post_cleanup {
2411	my ($make_core) = @_;	3650	my ($make_core) = @_;
2412		3651
2413	warn Carp::longmess "post_cleanup backtrace"	3652	warn Carp::longmess "post_cleanup backtrace"
2414	if $make_core;	3653	if $make_core;
2415	}
2416		3654
		3655	my $fh = pidfile;
		3656	unlink $PIDFILE if <$fh> == $$;
		3657	}
		3658
		3659	# a safer delete_package, copied from Symbol
		3660	sub clear_package($) {
		3661	my $pkg = shift;
		3662
		3663	# expand to full symbol table name if needed
		3664	unless ($pkg =~ /^main::.*::$/) {
		3665	$pkg = "main$pkg" if $pkg =~ /^::/;
		3666	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3667	$pkg .= '::' unless $pkg =~ /::$/;
		3668	}
		3669
		3670	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3671	my $stem_symtab = *{$stem}{HASH};
		3672
		3673	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3674	or return;
		3675
		3676	# clear all symbols
		3677	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3678	for my $name (keys %$leaf_symtab) {
		3679	_gv_clear *{"$pkg$name"};
		3680	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3681	}
		3682	warn "cleared package $pkg\n";#d#
		3683	}
		3684
2417	sub reload() {	3685	sub do_reload_perl() {
2418	# can/must only be called in main	3686	# can/must only be called in main
2419	if ($Coro::current != $Coro::main) {	3687	if ($Coro::current != $Coro::main) {
2420	warn "can only reload from main coroutine";	3688	warn "can only reload from main coroutine";
2421	return;	3689	return;
2422	}	3690	}
2423		3691
		3692	return if $RELOAD++;
		3693
		3694	my $t1 = EV::time;
		3695
		3696	while ($RELOAD) {
2424	warn "reloading...";	3697	warn "reloading...";
2425		3698
2426	warn "entering sync_job";	3699	warn "entering sync_job";
2427		3700
2428	cf::sync_job {	3701	cf::sync_job {
2429	cf::write_runtime; # external watchdog should not bark	3702	cf::write_runtime_sync; # external watchdog should not bark
2430	cf::emergency_save;	3703	cf::emergency_save;
2431	cf::write_runtime; # external watchdog should not bark	3704	cf::write_runtime_sync; # external watchdog should not bark
2432		3705
2433	warn "syncing database to disk";	3706	warn "syncing database to disk";
2434	BDB::db_env_txn_checkpoint $DB_ENV;	3707	BDB::db_env_txn_checkpoint $DB_ENV;
2435		3708
2436	# if anything goes wrong in here, we should simply crash as we already saved	3709	# if anything goes wrong in here, we should simply crash as we already saved
2437		3710
2438	warn "cancelling all WF_AUTOCANCEL watchers";
2439	for (Event::all_watchers) {
2440	$_->cancel if $_->data & WF_AUTOCANCEL;
2441	}
2442
2443	warn "flushing outstanding aio requests";	3711	warn "flushing outstanding aio requests";
2444	for (;;) {
2445	BDB::flush;
2446	IO::AIO::flush;
2447	Coro::cede;
2448	last unless IO::AIO::nreqs || BDB::nreqs;	3712	while (IO::AIO::nreqs || BDB::nreqs) {
2449	warn "iterate...";	3713	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2450	}
2451
2452	++$RELOAD;
2453
2454	warn "cancelling all extension coros";
2455	$_->cancel for values %EXT_CORO;
2456	%EXT_CORO = ();
2457
2458	warn "removing commands";
2459	%COMMAND = ();
2460
2461	warn "removing ext commands";
2462	%EXTCMD = ();
2463
2464	warn "unloading/nuking all extensions";
2465	for my $pkg (@EXTS) {
2466	warn "... unloading $pkg";
2467
2468	if (my $cb = $pkg->can ("unload")) {
2469	eval {
2470	$cb->($pkg);
2471	1
2472	} or warn "$pkg unloaded, but with errors: $@";
2473	}	3714	}
2474		3715
2475	warn "... nuking $pkg";	3716	warn "cancelling all extension coros";
2476	Symbol::delete_package $pkg;	3717	$_->cancel for values %EXT_CORO;
2477	}	3718	%EXT_CORO = ();
2478		3719
2479	warn "unloading all perl modules loaded from $LIBDIR";	3720	warn "removing commands";
2480	while (my ($k, $v) = each %INC) {	3721	%COMMAND = ();
2481	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2482		3722
		3723	warn "removing ext/exti commands";
		3724	%EXTCMD = ();
		3725	%EXTICMD = ();
		3726
		3727	warn "unloading/nuking all extensions";
		3728	for my $pkg (@EXTS) {
2483	warn "... unloading $k";	3729	warn "... unloading $pkg";
2484	delete $INC{$k};
2485		3730
2486	$k =~ s/\.pm$//;
2487	$k =~ s/\//::/g;
2488
2489	if (my $cb = $k->can ("unload_module")) {	3731	if (my $cb = $pkg->can ("unload")) {
		3732	eval {
2490	$cb->();	3733	$cb->($pkg);
		3734	1
		3735	} or warn "$pkg unloaded, but with errors: $@";
		3736	}
		3737
		3738	warn "... clearing $pkg";
		3739	clear_package $pkg;
2491	}	3740	}
2492		3741
2493	Symbol::delete_package $k;	3742	warn "unloading all perl modules loaded from $LIBDIR";
		3743	while (my ($k, $v) = each %INC) {
		3744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3745
		3746	warn "... unloading $k";
		3747	delete $INC{$k};
		3748
		3749	$k =~ s/\.pm$//;
		3750	$k =~ s/\//::/g;
		3751
		3752	if (my $cb = $k->can ("unload_module")) {
		3753	$cb->();
		3754	}
		3755
		3756	clear_package $k;
2494	}	3757	}
2495		3758
2496	warn "getting rid of safe::, as good as possible";	3759	warn "getting rid of safe::, as good as possible";
2497	Symbol::delete_package "safe::$_"	3760	clear_package "safe::$_"
2498	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2499		3762
2500	warn "unloading cf.pm \"a bit\"";	3763	warn "unloading cf.pm \"a bit\"";
2501	delete $INC{"cf.pm"};	3764	delete $INC{"cf.pm"};
		3765	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2502		3766
2503	# don't, removes xs symbols, too,	3767	# don't, removes xs symbols, too,
2504	# and global variables created in xs	3768	# and global variables created in xs
2505	#Symbol::delete_package __PACKAGE__;	3769	#clear_package __PACKAGE__;
2506		3770
2507	warn "unload completed, starting to reload now";	3771	warn "unload completed, starting to reload now";
2508		3772
2509	warn "reloading cf.pm";	3773	warn "reloading cf.pm";
2510	require cf;	3774	require cf;
2511	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3775	cf::_connect_to_perl_1;
2512		3776
2513	warn "loading config and database again";	3777	warn "loading config and database again";
2514	cf::cfg_load;	3778	cf::reload_config;
2515		3779
2516	warn "loading extensions";	3780	warn "loading extensions";
2517	cf::load_extensions;	3781	cf::load_extensions;
2518		3782
		3783	if ($REATTACH_ON_RELOAD) {
2519	warn "reattaching attachments to objects/players";	3784	warn "reattaching attachments to objects/players";
2520	_global_reattach; # objects, sockets	3785	_global_reattach; # objects, sockets
2521	warn "reattaching attachments to maps";	3786	warn "reattaching attachments to maps";
2522	reattach $_ for values %MAP;	3787	reattach $_ for values %MAP;
2523	warn "reattaching attachments to players";	3788	warn "reattaching attachments to players";
2524	reattach $_ for values %PLAYER;	3789	reattach $_ for values %PLAYER;
		3790	}
2525		3791
2526	warn "loading reloadable resources";	3792	warn "running post_init jobs";
2527	reload_resources;	3793	(pop @POST_INIT)->(1) while @POST_INIT;
2528		3794
2529	warn "leaving sync_job";	3795	warn "leaving sync_job";
2530		3796
2531	1	3797	1
2532	} or do {	3798	} or do {
2533	warn $@;	3799	warn $@;
2534	warn "error while reloading, exiting.";	3800	cf::cleanup "error while reloading, exiting.";
2535	exit 1;	3801	};
		3802
		3803	warn "reloaded";
		3804	--$RELOAD;
		3805	}
		3806
		3807	$t1 = EV::time - $t1;
		3808	warn "reload completed in ${t1}s\n";
		3809	};
		3810
		3811	our $RELOAD_WATCHER; # used only during reload
		3812
		3813	sub reload_perl() {
		3814	# doing reload synchronously and two reloads happen back-to-back,
		3815	# coro crashes during coro_state_free->destroy here.
		3816
		3817	$RELOAD_WATCHER ||= cf::async {
		3818	Coro::AIO::aio_wait cache_extensions;
		3819
		3820	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3821	do_reload_perl;
		3822	undef $RELOAD_WATCHER;
		3823	};
2536	};	3824	};
2537		3825	}
2538	warn "reloaded";
2539	};
2540
2541	our $RELOAD_WATCHER; # used only during reload
2542		3826
2543	register_command "reload" => sub {	3827	register_command "reload" => sub {
2544	my ($who, $arg) = @_;	3828	my ($who, $arg) = @_;
2545		3829
2546	if ($who->flag (FLAG_WIZ)) {	3830	if ($who->flag (FLAG_WIZ)) {
2547	$who->message ("reloading server.");	3831	$who->message ("reloading server.");
2548		3832	async {
2549	# doing reload synchronously and two reloads happen back-to-back,	3833	$Coro::current->{desc} = "perl_reload";
2550	# coro crashes during coro_state_free->destroy here.
2551
2552	$RELOAD_WATCHER ||= Event->timer (
2553	reentrant => 0,
2554	after => 0,
2555	data => WF_AUTOCANCEL,
2556	cb => sub {
2557	reload;	3834	reload_perl;
2558	undef $RELOAD_WATCHER;
2559	},
2560	);	3835	};
2561	}	3836	}
2562	};	3837	};
2563		3838
2564	unshift @INC, $LIBDIR;	3839	unshift @INC, $LIBDIR;
2565		3840
2566	my $bug_warning = 0;	3841	my $bug_warning = 0;
2567		3842
2568	$TICK_WATCHER = Event->timer (	3843	our @WAIT_FOR_TICK;
2569	reentrant => 0,	3844	our @WAIT_FOR_TICK_BEGIN;
2570	parked => 1,	3845
2571	prio => 0,	3846	sub wait_for_tick {
2572	at => $NEXT_TICK || $TICK,	3847	return if tick_inhibit || $Coro::current == $Coro::main;
2573	data => WF_AUTOCANCEL,	3848
2574	cb => sub {	3849	my $signal = new Coro::Signal;
		3850	push @WAIT_FOR_TICK, $signal;
		3851	$signal->wait;
		3852	}
		3853
		3854	sub wait_for_tick_begin {
		3855	return if tick_inhibit || $Coro::current == $Coro::main;
		3856
		3857	my $signal = new Coro::Signal;
		3858	push @WAIT_FOR_TICK_BEGIN, $signal;
		3859	$signal->wait;
		3860	}
		3861
		3862	sub tick {
2575	if ($Coro::current != $Coro::main) {	3863	if ($Coro::current != $Coro::main) {
2576	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3864	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2577	unless ++$bug_warning > 10;	3865	unless ++$bug_warning > 10;
2578	return;	3866	return;
2579	}	3867	}
2580		3868
2581	$NOW = Event::time;
2582
2583	cf::server_tick; # one server iteration	3869	cf::server_tick; # one server iteration
2584	$RUNTIME += $TICK;
2585	$NEXT_TICK += $TICK;
2586		3870
2587	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2588	$NEXT_RUNTIME_WRITE = $NOW + 10;	3872	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2589	Coro::async_pool {	3873	Coro::async_pool {
		3874	$Coro::current->{desc} = "runtime saver";
2590	write_runtime	3875	write_runtime_sync
2591	or warn "ERROR: unable to write runtime file: $!";	3876	or warn "ERROR: unable to write runtime file: $!";
2592	};
2593	}	3877	};
2594
2595	$WAIT_FOR_TICK->broadcast;
2596	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2597
2598	# my $AFTER = Event::time;
2599	# warn $AFTER - $NOW;#d#
2600
2601	# if we are delayed by four ticks or more, skip them all
2602	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2603
2604	$TICK_WATCHER->at ($NEXT_TICK);
2605	$TICK_WATCHER->start;
2606	},	3878	}
2607	);	3879
		3880	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3881	$sig->send;
		3882	}
		3883	while (my $sig = shift @WAIT_FOR_TICK) {
		3884	$sig->send;
		3885	}
		3886
		3887	$LOAD = ($NOW - $TICK_START) / $TICK;
		3888	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3889
		3890	if (0) {
		3891	if ($NEXT_TICK) {
		3892	my $jitter = $TICK_START - $NEXT_TICK;
		3893	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3894	warn "jitter $JITTER\n";#d#
		3895	}
		3896	}
		3897	}
2608		3898
2609	{	3899	{
2610	BDB::max_poll_time $TICK * 0.1;	3900	# configure BDB
2611	$BDB_POLL_WATCHER = Event->io (	3901
2612	reentrant => 0,
2613	fd => BDB::poll_fileno,
2614	poll => 'r',
2615	prio => 0,
2616	data => WF_AUTOCANCEL,
2617	cb => \&BDB::poll_cb,
2618	);
2619	BDB::min_parallel 8;	3902	BDB::min_parallel 8;
2620		3903	BDB::max_poll_reqs $TICK * 0.1;
2621	BDB::set_sync_prepare {	3904	$AnyEvent::BDB::WATCHER->priority (1);
2622	my $status;
2623	my $current = $Coro::current;
2624	(
2625	sub {
2626	$status = $!;
2627	$current->ready; undef $current;
2628	},
2629	sub {
2630	Coro::schedule while defined $current;
2631	$! = $status;
2632	},
2633	)
2634	};
2635		3905
2636	unless ($DB_ENV) {	3906	unless ($DB_ENV) {
2637	$DB_ENV = BDB::db_env_create;	3907	$DB_ENV = BDB::db_env_create;
		3908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3909	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3910	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3911	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3912	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2638		3913
2639	cf::sync_job {	3914	cf::sync_job {
2640	eval {	3915	eval {
2641	BDB::db_env_open	3916	BDB::db_env_open
2642	$DB_ENV,	3917	$DB_ENV,
2643	$BDB_ENV_DIR,	3918	$BDBDIR,
2644	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3919	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2645	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3920	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2646	0666;	3921	0666;
2647		3922
2648	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3923	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2649
2650	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2651	$DB_ENV->set_lk_detect;
2652	};	3924	};
2653		3925
2654	cf::cleanup "db_env_open(db): $@" if $@;	3926	cf::cleanup "db_env_open(db): $@" if $@;
2655	};	3927	};
2656	}	3928	}
		3929
		3930	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3931	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3932	};
		3933	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3934	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3935	};
		3936	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3937	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3938	};
2657	}	3939	}
2658		3940
2659	{	3941	{
		3942	# configure IO::AIO
		3943
2660	IO::AIO::min_parallel 8;	3944	IO::AIO::min_parallel 8;
2661
2662	undef $Coro::AIO::WATCHER;
2663	IO::AIO::max_poll_time $TICK * 0.1;	3945	IO::AIO::max_poll_time $TICK * 0.1;
2664	$AIO_POLL_WATCHER = Event->io (	3946	undef $AnyEvent::AIO::WATCHER;
2665	reentrant => 0,
2666	data => WF_AUTOCANCEL,
2667	fd => IO::AIO::poll_fileno,
2668	poll => 'r',
2669	prio => 6,
2670	cb => \&IO::AIO::poll_cb,
2671	);
2672	}	3947	}
		3948
		3949	my $_log_backtrace;
		3950
		3951	sub _log_backtrace {
		3952	my ($msg, @addr) = @_;
		3953
		3954	$msg =~ s/\n//;
		3955
		3956	# limit the # of concurrent backtraces
		3957	if ($_log_backtrace < 2) {
		3958	++$_log_backtrace;
		3959	my $perl_bt = Carp::longmess $msg;
		3960	async {
		3961	$Coro::current->{desc} = "abt $msg";
		3962
		3963	my @bt = fork_call {
		3964	@addr = map { sprintf "%x", $_ } @addr;
		3965	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3966	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3967	or die "addr2line: $!";
		3968
		3969	my @funcs;
		3970	my @res = <$fh>;
		3971	chomp for @res;
		3972	while (@res) {
		3973	my ($func, $line) = splice @res, 0, 2, ();
		3974	push @funcs, "[$func] $line";
		3975	}
		3976
		3977	@funcs
		3978	};
		3979
		3980	LOG llevInfo, "[ABT] $perl_bt\n";
		3981	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3982	LOG llevInfo, "[ABT] $_\n" for @bt;
		3983	--$_log_backtrace;
		3984	};
		3985	} else {
		3986	LOG llevInfo, "[ABT] $msg\n";
		3987	LOG llevInfo, "[ABT] [suppressed]\n";
		3988	}
		3989	}
		3990
		3991	# load additional modules
		3992	require "cf/$_.pm" for @EXTRA_MODULES;
		3993	cf::_connect_to_perl_2;
2673		3994
2674	END { cf::emergency_save }	3995	END { cf::emergency_save }
2675		3996
2676	1	3997	1
2677		3998

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