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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.203 by root, Thu Feb 1 19:40:42 2007 UTC vs.
Revision 1.489 by root, Fri Oct 23 03:08:35 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.5 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
		55	use BDB ();
20	use Data::Dumper;	56	use Data::Dumper;
21	use Digest::MD5;	57	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		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";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	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(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	115	our $NEXT_TICK;
52	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
53		124
54	our %CFG;	125	our %CFG;
55		126
56	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
58		130
59	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		134
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $REALLY_UNLOOP; # never set to true, please :)
		147
70	binmode STDOUT;	148	binmode STDOUT;
71	binmode STDERR;	149	binmode STDERR;
72		150
73	# read virtual server time, if available	151	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
78	}	156	}
79		157
80	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	159
82	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		162
86	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
87		164
88	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::"} };
89		177
90	#############################################################################	178	#############################################################################
91		179
92	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
93		181
…		…
100	=item $cf::RUNTIME	188	=item $cf::RUNTIME
101		189
102	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
103	every server tick.	191	every server tick.
104		192
105	=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
106		196
107	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
108	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.
109		201
110	=item $cf::NOW	202	=item $cf::NOW
111		203
112	The time of the last (current) server tick.	204	The time of the last (current) server tick.
113		205
114	=item $cf::TICK	206	=item $cf::TICK
115		207
116	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
117		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
118	=item %cf::CFG	220	=item %cf::CFG
119		221
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
121	from wherever your confdir points to.	223	from wherever your confdir points to.
122		224
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		226
125	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
126	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
127	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.
128	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.
129		242
130	=back	243	=back
131		244
132	=cut	245	=cut
133		246
134	BEGIN {	247	$Coro::State::WARNHOOK = sub {
135	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	248	my $msg = join "", @_;
137	utf8::encode $msg;
138		249
139	$msg .= "\n"	250	$msg .= "\n"
140	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
141		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
142	LOG llevError, $msg;	255	LOG llevError, $msg;
143	};	256	};
144	}	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	};
145		271
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@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';
151	@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)
152		279
153	# 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
154	# within the Safe compartment.	281	# within the Safe compartment.
155	for my $pkg (qw(	282	for my $pkg (qw(
156	cf::global cf::attachable	283	cf::global cf::attachable
157	cf::object cf::object::player	284	cf::object cf::object::player
158	cf::client cf::player	285	cf::client cf::player
159	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
160	cf::map cf::party cf::region	288	cf::party cf::region
161	)) {	289	)) {
162	no strict 'refs';
163	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
164	}	291	}
165		292
166	$Event::DIED = sub {	293	$EV::DIED = sub {
167	warn "error in event callback: @_";	294	warn "error in event callback: @_";
168	};	295	};
		296
		297	#############################################################################
169		298
170	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
171		300
172	=over 4	301	=over 4
173		302
…		…
192	$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;
193	$d	322	$d
194	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
195	}	324	}
196		325
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
200		327
201	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
202		329
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
211		331
212	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
213		333
214	=cut	334	=cut
215		335
216	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
218	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;
219	}	353	}
220		354
221	=item cf::lock_wait $string	355	=item cf::lock_wait $string
222		356
223	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
224		358
225	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
226		360
227	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
228	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,
229	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
230	returned.	364	returned.
231		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
232	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
233	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
234		371
235	=cut	372	=item $locked = cf::lock_active $string
236		373
237	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
238		379
239	sub lock_wait($) {	380	sub lock_wait($) {
240	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	382	}
248		383
249	sub lock_acquire($) {	384	sub lock_acquire($) {
250	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
251		387
252	# wait, to be sure we are not locked	388	sub lock_active($) {
253	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	390	}
262		391
263	sub freeze_mainloop {	392	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
265		394
266	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	396	}
268	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
269	};	456	}
270	$WRITE_RUNTIME_WATCHER->stop;	457	};
271	$TICK_WATCHER->stop;	458
272	$guard	459	sub get_slot($;$$) {
		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	$sig->wait;
273	}	471	}
274		472
275	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
276		474
277	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		480
283	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
284		482
285	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
286		484
287	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
290		489
291	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
294	fast or be very important.	493	fast or be very important.
…		…
297		496
298	sub sync_job(&) {	497	sub sync_job(&) {
299	my ($job) = @_;	498	my ($job) = @_;
300		499
301	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
302	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
304		505
305	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	507
307	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
308		509
309	my $busy = 1;	510	my $busy = 1;
310	my @res;	511	my @res;
311		512
312	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	515	@res = eval { $job->() };
314	warn $@ if $@;	516	warn $@ if $@;
315	undef $busy;	517	undef $busy;
316	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
317		519
318	while ($busy) {	520	while ($busy) {
319	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
320	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
321		531
322	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
323	} else {	533	} else {
324	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
325		535
…		…
345	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
346		556
347	$coro	557	$coro
348	}	558	}
349		559
350	sub write_runtime {	560	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		561
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
354	or return;	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.
355		566
356	my $value = $cf::RUNTIME + 90 + 10;	567	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		568
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	569	sub fork_call(&@) {
361	and return;	570	my ($cb, @args) = @_;
362		571
363	aio_fsync $fh	572	# we seemingly have to make a local copy of the whole thing,
364	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
365		575
366	close $fh	576	my @res = Coro::Util::fork_eval {
367	or return;	577	reset_signals;
		578	&$cb
		579	}, @args;
368		580
369	aio_rename "$runtime~", $runtime	581	wantarray ? @res : $res[-1]
370	and return;	582	}
371		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		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($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
372	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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 });
373	}	747	}
374		748
375	=back	749	=back
376		750
377	=cut	751	=cut
378		752
379	#############################################################################	753	#############################################################################
380		754
381	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
382		756
383	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
384	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")
385	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
386		760
387	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>
388	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
389	crossfire+).	763	Deliantra).
390		764
391	=over 4	765	=over 4
392		766
393	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
394		768
…		…
438	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
439		813
440	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
441	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
442		816
443	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
444	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.
445		819
446	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
447		821
448	=over 4	822	=over 4
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
558		932
559	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		937
564	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	939	my $pkg = shift @arg;
566		940
567	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
597	}	971	}
598		972
599	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
600	} else {	974	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	976	}
603		977
604	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
605	}	979	}
606		980
…		…
608	if (ref $_[0]) {	982	if (ref $_[0]) {
609	_object_attach @_;	983	_object_attach @_;
610	} else {	984	} else {
611	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
612	}	986	}
		987	_recalc_want;
613	};	988	};
614		989
615	# all those should be optimised	990	# all those should be optimised
616	sub cf::attachable::detach {	991	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
621	reattach ($obj);	996	reattach ($obj);
622	} else {	997	} else {
623	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
624	}	999	}
		1000	_recalc_want;
625	};	1001	};
626		1002
627	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
629		1005
…		…
644	";	1020	";
645	die if $@;	1021	die if $@;
646	}	1022	}
647		1023
648	our $override;	1024	our $override;
649	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?
650		1026
651	sub override {	1027	sub override {
652	$override = 1;	1028	$override = 1;
653	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
654	}	1030	}
655		1031
656	sub do_invoke {	1032	sub do_invoke {
657	my $event = shift;	1033	my $event = shift;
658	my $callbacks = shift;	1034	my $callbacks = shift;
659		1035
660	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
661		1037
662	local $override;	1038	local $override;
663		1039
664	for (@$callbacks) {	1040	for (@$callbacks) {
665	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
674	}	1050	}
675		1051
676	0	1052	0
677	}	1053	}
678		1054
679	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
680		1056
681	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
682		1058
683	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
684		1060
685	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
686	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
687	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		1064
689	=back	1065	=back
690		1066
691	=cut	1067	=cut
692		1068
693	#############################################################################	1069	#############################################################################
694	# 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, $ob2
		1112	}
695		1113
696	sub reattach {	1114	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	1116	my ($obj) = @_;
699		1117
		1118	# no longer needed after getting rid of delete_package?
700	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
701		1120
702	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
703		1122
704	@$registry = ();	1123	@$registry = ();
705		1124
…		…
720	cf::attachable->attach (	1139	cf::attachable->attach (
721	prio => -1000000,	1140	prio => -1000000,
722	on_instantiate => sub {	1141	on_instantiate => sub {
723	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
724		1143
725	$data = from_json $data;	1144	$data = decode_json $data;
726		1145
727	for (@$data) {	1146	for (@$data) {
728	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
729		1148
730	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1165	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
748		1167
749	sync_job {	1168	sync_job {
750	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
753		1173
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		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;
757	aio_fsync $fh;	1179	aio_fsync $fh;
		1180	}
758	close $fh;	1181	aio_close $fh;
759		1182
760	if (@$objs) {	1183	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
		1188	if ($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;
765	aio_fsync $fh;	1190	aio_fsync $fh;
		1191	}
766	close $fh;	1192	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
768	}	1194	}
769	} else {	1195	} else {
770	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
771	}	1197	}
772		1198
773	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1203	} else {
775	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
776	}	1205	}
777	} else {	1206	} else {
778	aio_unlink $filename;	1207	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
780	}	1209	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	1210	};
788	}	1211	}
789		1212
790	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
792		1215
…		…
797		1220
798	sub object_thawer_load {	1221	sub object_thawer_load {
799	my ($filename) = @_;	1222	my ($filename) = @_;
800		1223
801	my ($data, $av);	1224	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		1225
806	(aio_load $filename, $data) >= 0	1226	(aio_load $filename, $data) >= 0
807	or return;	1227	or return;
808		1228
809	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
810	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
811	or return;	1231	or return;
		1232
812	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
813	}	1235	}
814		1236
		1237	utf8::decode (my $decname = $filename);
815	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
817	return ($data, $av);	1241	($data, $av)
818	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
819		1249
820	#############################################################################	1250	#############################################################################
821	# command handling &c	1251	# command handling &c
822		1252
823	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1267	}
838		1268
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1270
841	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.
842		1276
843	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
844	called.	1278	called.
845		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
846	=cut	1291	=cut
847		1292
848	sub register_extcmd {	1293	sub register_extcmd {
849	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
850		1295
851	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
852	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
853		1306
854	cf::player->attach (	1307	cf::player->attach (
855	on_command => sub {	1308	on_command => sub {
856	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
857		1310
…		…
865	cf::override;	1318	cf::override;
866	},	1319	},
867	on_extcmd => sub {	1320	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
869		1322
870	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1324
872	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
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
874	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
875	$pl->ext_reply ($msg->{msgid}, %reply);
876	}
877	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
878	} else {	1340	} else {
879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
880	}	1342	}
881		1343
882	cf::override;	1344	cf::override;
883	},	1345	},
884	);	1346	);
885		1347
		1348	# "readahead" all extensions
886	sub load_extension {	1349	sub cache_extensions {
887	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
888		1351
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
890	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
891	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}	1355	}
914	die $@;
915	}	1356	};
916		1357
917	push @EXTS, $pkg;	1358	$grp
918	}	1359	}
919		1360
920	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
921	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1366	next unless -r $path;
923	eval {	1367
924	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	$progress = 1;
925	1	1424	}
926	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
927	}	1430	};
928	}	1431	}
929		1432
930	#############################################################################	1433	#############################################################################
931		1434
		1435	=back
		1436
932	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
933		1438
934	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
935		1440
936	=cut	1441	=cut
937		1442
938	package cf::player;	1443	package cf::player;
939		1444
…		…
941		1446
942	=head3 cf::player	1447	=head3 cf::player
943		1448
944	=over 4	1449	=over 4
945		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
946	=item cf::player::find $login	1465	=item cf::player::find $login
947		1466
948	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
949		1468
950	=cut	1469	=cut
951		1470
952	sub playerdir($) {	1471	sub playerdir($) {
953	cf::localdir	1472	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1474	}
959		1475
960	sub path($) {	1476	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1478
963	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
964	}	1480	}
965		1481
966	sub find_active($) {	1482	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
971		1487
972	sub exists($) {	1488	sub exists($) {
973	my ($login) = @_;	1489	my ($login) = @_;
974		1490
975	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
976	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
977	}	1493	}
978		1494
979	sub find($) {	1495	sub find($) {
980	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
981	my $login = $_[0];	1497	my $login = $_[0];
982		1498
983	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
984		1500
985	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
986	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
987	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;
988	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
989	}	1518	}
990	}	1519	}
991	}	1520	}
992		1521
…		…
1001	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1002		1531
1003	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1004	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1005		1534
		1535	cf::get_slot 0.01;
		1536
1006	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1007	Coro::cede;	1538	cf::cede_to_tick;
1008	}	1539	}
1009		1540
1010	sub new($) {	1541	sub new($) {
1011	my ($login) = @_;	1542	my ($login) = @_;
1012		1543
…		…
1018	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1019		1550
1020	$self	1551	$self
1021	}	1552	}
1022		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
1023	=item $pl->quit_character	1564	=item $pl->quit_character
1024		1565
1025	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1026	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1027		1568
1028	=cut	1569	=cut
1029		1570
1030	sub quit_character {	1571	sub quit_character {
1031	my ($pl) = @_;	1572	my ($pl) = @_;
1032		1573
		1574	my $name = $pl->ob->name;
		1575
1033	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1034	$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
1035		1578
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1037	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1039	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1040		1585
1041	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1588	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1589	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
1046	IO::AIO::aio_rmtree $temp;	1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
1047	}	1612	}
1048		1613
1049	=item cf::player::list_logins	1614	=item cf::player::list_logins
1050		1615
1051	Returns am arrayref of all valid playernames in the system, can take a	1616	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1053		1618
1054	=cut	1619	=cut
1055		1620
1056	sub list_logins {	1621	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1623	or return [];
1059		1624
1060	my @logins;	1625	my @logins;
1061		1626
1062	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") {
1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1064	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1065	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1066		1637
1067	utf8::decode $login;	1638	utf8::decode $login;
1068	push @logins, $login;	1639	push @logins, $login;
1069	}	1640	}
1070		1641
…		…
1097	}	1668	}
1098		1669
1099	\@paths	1670	\@paths
1100	}	1671	}
1101		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1103		1678
1104	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1105		1680
1106	=cut	1681	=cut
1107		1682
1108	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1109	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1110		1685
1111	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1112
1113	$self->send ("ext " . cf::to_json \%msg);
1114	}	1687	}
1115		1688
1116	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	}
1117		1729
1118	=back	1730	=back
1119
1120		1731
1121	=head3 cf::map	1732	=head3 cf::map
1122		1733
1123	=over 4	1734	=over 4
1124		1735
…		…
1136	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1137	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1138		1749
1139	sub generate_random_map {	1750	sub generate_random_map {
1140	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
1141	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1142	$self->_create_random_map (	1756	$self->_create_random_map (
1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1179	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1180		1794
1181	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1182	local $self->{path};	1796	local $self->{path};
1183	local $self->{load_path};	1797	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		1798
1187	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1188	}	1800	}
1189		1801
1190	sub normalise {	1802	sub normalise {
…		…
1237	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1238	return $self;	1850	return $self;
1239	}	1851	}
1240	}	1852	}
1241		1853
1242	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1243	()	1855	()
1244	}	1856	}
1245		1857
1246	sub init {	1858	sub init {
1247	my ($self) = @_;	1859	my ($self) = @_;
…		…
1262		1874
1263	# the original (read-only) location	1875	# the original (read-only) location
1264	sub load_path {	1876	sub load_path {
1265	my ($self) = @_;	1877	my ($self) = @_;
1266		1878
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1268	}	1880	}
1269		1881
1270	# the temporary/swap location	1882	# the temporary/swap location
1271	sub save_path {	1883	sub save_path {
1272	my ($self) = @_;	1884	my ($self) = @_;
1273		1885
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1276	}	1888	}
1277		1889
1278	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1279	sub uniq_path {	1891	sub uniq_path {
1280	my ($self) = @_;	1892	my ($self) = @_;
1281		1893
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1284	}	1896	}
1285		1897
1286	# and all this just because we cannot iterate over	1898	sub decay_objects {
1287	# all maps in C++...
1288	sub change_all_map_light {
1289	my ($change) = @_;	1899	my ($self) = @_;
1290		1900
1291	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1292	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1293	}	1904	}
1294		1905
1295	sub unlink_save {	1906	sub unlink_save {
1296	my ($self) = @_;	1907	my ($self) = @_;
1297		1908
1298	utf8::encode (my $save = $self->save_path);	1909	utf8::encode (my $save = $self->save_path);
1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1301
1302	#d#TODO remove .map and also nuke
1303	$save =~ s/\.map// or return;#d#
1304	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1305	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1306	}	1912	}
1307		1913
1308	sub load_header_from($) {	1914	sub load_header_from($) {
1309	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1310		1916
1311	utf8::encode $path;	1917	utf8::encode $path;
1312	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1313	# or return;
1314
1315	$self->_load_header ($path)
1316	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;
1317		1926
1318	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1319		1928
1320	1	1929	1
1321	}	1930	}
…		…
1360	$self->load_header_orig	1969	$self->load_header_orig
1361	or return;	1970	or return;
1362	$self->prepare_orig;	1971	$self->prepare_orig;
1363	}	1972	}
1364		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
1365	1	1980	1
1366	}	1981	}
1367		1982
1368	sub find;	1983	sub find;
1369	sub find {	1984	sub find {
1370	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1371		1986
1372	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1373		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1374	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1375		1991
1376	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1377	my $guard = cf::lock_acquire "map_find:$path";
1378	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1379	or return;	1994	or return;
1380		1995
1381	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1382		1997
1383	$map->load_header	1998	$map->load_header
1384	or return;	1999	or return;
1385		2000
1386	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1387	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1388	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1389	$map->reset;	2006	$map->reset;
1390	undef $guard;
1391	return find $path;	2007	return find $path;
1392	}	2008	}
1393		2009
1394	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1395	}	2011	}
…		…
1402	my ($self) = @_;	2018	my ($self) = @_;
1403		2019
1404	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1405		2021
1406	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1407	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1408		2026
		2027	return unless $self->valid;
1409	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1410		2029
1411	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1412		2031
1413	$self->alloc;	2032	$self->alloc;
1414		2033
1415	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1416		2036
1417	$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)
1418	or return;	2040	or return;
1419		2041
1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1421	if delete $self->{load_original};	2043	if delete $self->{load_original};
1422		2044
1423	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1424	utf8::encode $uniq;	2046	utf8::encode $uniq;
1425	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1426	$self->clear_unique_items;	2049	$self->clear_unique_items;
1427	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1428	}	2053	}
1429	}	2054	}
1430		2055
1431	Coro::cede;	2056	$f->resolve_delayed_derefs;
1432		2057
		2058	cf::cede_to_tick;
1433	# now do the right thing for maps	2059	# now do the right thing for maps
1434	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1435
1436	unless ($self->{deny_activate}) {
1437	$self->decay_objects;
1438	$self->fix_auto_apply;
1439	$self->update_buttons;
1440	Coro::cede;
1441	$self->set_darkness_map;
1442	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1443	unless $self->difficulty;	2062	unless $self->difficulty;
1444	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;
1445	$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);
1446	}	2077	}
1447		2078
1448	$self->post_load;	2079	$self->post_load;
1449
1450	$self->in_memory (cf::MAP_IN_MEMORY);
1451	}	2080	}
1452		2081
1453	sub customise_for {	2082	sub customise_for {
1454	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1455		2084
1456	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1457	if $self->per_player;	2086	if $self->per_player;
1458		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1459	$self	2091	$self
1460	}	2092	}
1461		2093
1462	# 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
1463	sub load_diag {	2095	sub load_neighbours {
1464	my ($map) = @_;	2096	my ($map) = @_;
1465		2097
1466	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1467		2099
1468	for (0 .. 3) {	2100	for (0 .. 3) {
1469	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1470	or next;	2102	or next;
1471	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1472	or next;	2104	or next;
1473	$neigh->load;	2105	$neigh->load;
1474		2106
		2107	push @neigh,
1475	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1476	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1477	}	2110	}
1478		2111
1479	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1480	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1481	or next;	2115	or next;
1482	$neigh->load;	2116	$neigh->load;
1483	}	2117	}
1484	}	2118	}
1485		2119
…		…
1490	}	2124	}
1491		2125
1492	sub do_load_sync {	2126	sub do_load_sync {
1493	my ($map) = @_;	2127	my ($map) = @_;
1494		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1495	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1496	}	2133	}
1497		2134
1498	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1499	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1500		2137
1501	sub find_async {	2138	sub find_async {
1502	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1503		2140
1504	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1505		2142
1506	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1508	}	2145	}
1509		2146
1510	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1511	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1512	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1513	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1514	my $map = find $path	2154	if (my $map = find $k) {
1515	or next;
1516	$map->load;	2155	$map->load if $v;
		2156	}
1517		2157
1518	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1519	}	2159	}
1520	}	2160	}
1521	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1522	};	2162	};
1523	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1526	}	2166	}
1527		2167
1528	sub save {	2168	sub save {
1529	my ($self) = @_;	2169	my ($self) = @_;
1530		2170
1531	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2172
1533	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1534		2174
1535	return unless $self->dirty;	2175	return unless $self->dirty;
1536		2176
…		…
1542	return if $self->{deny_save};	2182	return if $self->{deny_save};
1543		2183
1544	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1545		2185
1546	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1547	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1548	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1549		2192
1550	if ($uniq) {	2193	if ($uniq) {
1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1552	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1553	} else {	2196	} else {
…		…
1559	my ($self) = @_;	2202	my ($self) = @_;
1560		2203
1561	# save first because save cedes	2204	# save first because save cedes
1562	$self->save;	2205	$self->save;
1563		2206
1564	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1565		2208
1566	return if $self->players;	2209	return if $self->players;
1567	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1568	return if $self->{deny_save};	2211	return if $self->{deny_save};
1569		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1570	$self->clear;	2217	$self->clear;
1571	$self->in_memory (cf::MAP_SWAPPED);
1572	}	2218	}
1573		2219
1574	sub reset_at {	2220	sub reset_at {
1575	my ($self) = @_;	2221	my ($self) = @_;
1576		2222
1577	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
1579	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1580		2225
1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1582	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;
1583		2228
…		…
1594	my ($self) = @_;	2239	my ($self) = @_;
1595		2240
1596	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1597		2242
1598	return if $self->players;	2243	return if $self->players;
1599	return if $self->isa ("ext::map_per_player");#d#
1600		2244
1601	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
		2246
		2247	$self->in_memory (cf::MAP_SWAPPED);
		2248
		2249	# need to save uniques path
		2250	unless ($self->{deny_save}) {
		2251	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2252
		2253	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2254	if $uniq;
		2255	}
1602		2256
1603	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1604		2258
1605	$self->in_memory (cf::MAP_SWAPPED);	2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1606	$self->clear;	2261	$self->clear;
1607
1608	$_->clear_links_to ($self) for values %cf::MAP;
1609		2262
1610	$self->unlink_save;	2263	$self->unlink_save;
1611	$self->destroy;	2264	$self->destroy;
1612	}	2265	}
1613		2266
1614	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1615		2268
1616	sub nuke {	2269	sub nuke {
1617	my ($self) = @_;	2270	my ($self) = @_;
1618		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1619	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1620		2276
1621	$self->unlink_save;	2277	$self->unlink_save;
1622		2278
1623	bless $self, "cf::map";	2279	bless $self, "cf::map";
1624	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1627	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1628		2284
1629	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1630		2287
1631	$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	]
1632	}	2325	}
1633		2326
1634	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1635		2328
1636	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1637	instantiated unique items. May block.	2330	instantiated unique items. May block.
1638		2331
1639	=cut	2332	=cut
1640		2333
1641	sub unique_maps() {	2334	sub unique_maps() {
1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1643	or return;	2336	map {
1644
1645	my @paths;
1646
1647	for (@$files) {
1648	utf8::decode $_;	2337	utf8::decode $_;
1649	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1650	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1651		2340	? ()
1652	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1653	}	2343	]
1654
1655	\@paths
1656	}	2344	}
1657		2345
1658	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory). May block.
		2350
		2351	=cut
		2352
		2353	sub static_maps() {
		2354	my @dirs = "";
		2355	my @maps;
		2356
		2357	while (@dirs) {
		2358	my $dir = shift @dirs;
		2359
		2360	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2361	or return;
		2362
		2363	for (@$files) {
		2364	s/\.map$// or next;
		2365	utf8::decode $_;
		2366	push @maps, "$dir/$_";
		2367	}
		2368
		2369	push @dirs, map "$dir/$_", @$dirs;
		2370	}
		2371
		2372	\@maps
		2373	}
1659		2374
1660	=back	2375	=back
1661		2376
1662	=head3 cf::object	2377	=head3 cf::object
1663		2378
…		…
1667		2382
1668	=over 4	2383	=over 4
1669		2384
1670	=item $ob->inv_recursive	2385	=item $ob->inv_recursive
1671		2386
1672	Returns the inventory of the object _and_ their inventories, recursively.	2387	Returns the inventory of the object I<and> their inventories, recursively,
		2388	but I<not> the object itself.
1673		2389
1674	=cut	2390	=cut
1675		2391
1676	sub inv_recursive_;	2392	sub inv_recursive_;
1677	sub inv_recursive_ {	2393	sub inv_recursive_ {
…		…
1680		2396
1681	sub inv_recursive {	2397	sub inv_recursive {
1682	inv_recursive_ inv $_[0]	2398	inv_recursive_ inv $_[0]
1683	}	2399	}
1684		2400
		2401	=item $ref = $ob->ref
		2402
		2403	Creates and returns a persistent reference to an object that can be stored as a string.
		2404
		2405	=item $ob = cf::object::deref ($refstring)
		2406
		2407	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2408	even if the object actually exists. May block.
		2409
		2410	=cut
		2411
		2412	sub deref {
		2413	my ($ref) = @_;
		2414
		2415	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2416	my ($uuid, $name) = ($1, $2);
		2417	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2418	or return;
		2419	$pl->ob->uuid eq $uuid
		2420	or return;
		2421
		2422	$pl->ob
		2423	} else {
		2424	warn "$ref: cannot resolve object reference\n";
		2425	undef
		2426	}
		2427	}
		2428
1685	package cf;	2429	package cf;
1686		2430
1687	=back	2431	=back
1688		2432
1689	=head3 cf::object::player	2433	=head3 cf::object::player
…		…
1695	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1696	can be C<undef>. Does the right thing when the player is currently in a	2440	can be C<undef>. Does the right thing when the player is currently in a
1697	dialogue with the given NPC character.	2441	dialogue with the given NPC character.
1698		2442
1699	=cut	2443	=cut
		2444
		2445	our $SAY_CHANNEL = {
		2446	id => "say",
		2447	title => "Map",
		2448	reply => "say ",
		2449	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2450	};
		2451
		2452	our $CHAT_CHANNEL = {
		2453	id => "chat",
		2454	title => "Chat",
		2455	reply => "chat ",
		2456	tooltip => "Player chat and shouts, global to the server.",
		2457	};
1700		2458
1701	# rough implementation of a future "reply" method that works	2459	# rough implementation of a future "reply" method that works
1702	# with dialog boxes.	2460	# with dialog boxes.
1703	#TODO: the first argument must go, split into a $npc->reply_to ( method	2461	#TODO: the first argument must go, split into a $npc->reply_to ( method
1704	sub cf::object::player::reply($$$;$) {	2462	sub cf::object::player::reply($$$;$) {
…		…
1706		2464
1707	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2465	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1708		2466
1709	if ($self->{record_replies}) {	2467	if ($self->{record_replies}) {
1710	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2468	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2469
1711	} else {	2470	} else {
		2471	my $pl = $self->contr;
		2472
		2473	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2474	my $dialog = $pl->{npc_dialog};
		2475	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2476
		2477	} else {
1712	$msg = $npc->name . " says: $msg" if $npc;	2478	$msg = $npc->name . " says: $msg" if $npc;
1713	$self->message ($msg, $flags);	2479	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2480	}
1714	}	2481	}
		2482	}
		2483
		2484	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2485
		2486	=cut
		2487
		2488	sub cf::object::send_msg {
		2489	my $pl = shift->contr
		2490	or return;
		2491	$pl->send_msg (@_);
1715	}	2492	}
1716		2493
1717	=item $player_object->may ("access")	2494	=item $player_object->may ("access")
1718		2495
1719	Returns wether the given player is authorized to access resource "access"	2496	Returns wether the given player is authorized to access resource "access"
…		…
1732		2509
1733	=item $player_object->enter_link	2510	=item $player_object->enter_link
1734		2511
1735	Freezes the player and moves him/her to a special map (C<{link}>).	2512	Freezes the player and moves him/her to a special map (C<{link}>).
1736		2513
1737	The player should be reasonably safe there for short amounts of time. You	2514	The player should be reasonably safe there for short amounts of time (e.g.
1738	I<MUST> call C<leave_link> as soon as possible, though.	2515	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2516	though, as the palyer cannot control the character while it is on the link
		2517	map.
1739		2518
1740	Will never block.	2519	Will never block.
1741		2520
1742	=item $player_object->leave_link ($map, $x, $y)	2521	=item $player_object->leave_link ($map, $x, $y)
1743		2522
…		…
1766	$self->deactivate_recursive;	2545	$self->deactivate_recursive;
1767		2546
1768	return if UNIVERSAL::isa $self->map, "ext::map_link";	2547	return if UNIVERSAL::isa $self->map, "ext::map_link";
1769		2548
1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2549	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1771	if $self->map;	2550	if $self->map && $self->map->{path} ne "{link}";
1772		2551
1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2552	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1774	}	2553	}
1775		2554
1776	sub cf::object::player::leave_link {	2555	sub cf::object::player::leave_link {
1777	my ($self, $map, $x, $y) = @_;	2556	my ($self, $map, $x, $y) = @_;
		2557
		2558	return unless $self->contr->active;
1778		2559
1779	my $link_pos = delete $self->{_link_pos};	2560	my $link_pos = delete $self->{_link_pos};
1780		2561
1781	unless ($map) {	2562	unless ($map) {
1782	# restore original map position	2563	# restore original map position
…		…
1796	# use -1 or undef as default coordinates, not 0, 0	2577	# use -1 or undef as default coordinates, not 0, 0
1797	($x, $y) = ($map->enter_x, $map->enter_y)	2578	($x, $y) = ($map->enter_x, $map->enter_y)
1798	if $x <=0 && $y <= 0;	2579	if $x <=0 && $y <= 0;
1799		2580
1800	$map->load;	2581	$map->load;
1801	$map->load_diag;	2582	$map->load_neighbours;
1802		2583
1803	return unless $self->contr->active;	2584	return unless $self->contr->active;
		2585
		2586	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2587	$self->enter_map ($map, $x, $y);
		2588
		2589	# only activate afterwards, to support waiting in hooks
1804	$self->activate_recursive;	2590	$self->activate_recursive;
1805	$self->enter_map ($map, $x, $y);
1806	}	2591	}
1807		2592
1808	cf::player->attach (	2593	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1809	on_logout => sub {
1810	my ($pl) = @_;
1811		2594
1812	# abort map switching before logout	2595	Moves the player to the given map-path and coordinates by first freezing
1813	if ($pl->ob->{_link_pos}) {	2596	her, loading and preparing them map, calling the provided $check callback
1814	cf::sync_job {	2597	that has to return the map if sucecssful, and then unfreezes the player on
1815	$pl->ob->leave_link	2598	the new (success) or old (failed) map position. In either case, $done will
1816	};	2599	be called at the end of this process.
1817	}
1818	},
1819	on_login => sub {
1820	my ($pl) = @_;
1821		2600
1822	# try to abort aborted map switching on player login :)	2601	Note that $check will be called with a potentially non-loaded map, so if
1823	# should happen only on crashes	2602	it needs a loaded map it has to call C<< ->load >>.
1824	if ($pl->ob->{_link_pos}) {
1825	$pl->ob->enter_link;
1826	(async {
1827	# we need this sleep as the login has a concurrent enter_exit running
1828	# and this sleep increases chances of the player not ending up in scorn
1829	$pl->ob->reply (undef,
1830	"There was an internal problem at your last logout, "
1831	. "the server will try to bring you to your intended destination in a second.",
1832	cf::NDI_RED);
1833	Coro::Timer::sleep 1;
1834	$pl->ob->leave_link;
1835	})->prio (2);
1836	}
1837	},
1838	);
1839		2603
1840	=item $player_object->goto ($path, $x, $y)
1841
1842	=cut	2604	=cut
		2605
		2606	our $GOTOGEN;
1843		2607
1844	sub cf::object::player::goto {	2608	sub cf::object::player::goto {
1845	my ($self, $path, $x, $y) = @_;	2609	my ($self, $path, $x, $y, $check, $done) = @_;
		2610
		2611	# do generation counting so two concurrent goto's will be executed in-order
		2612	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1846		2613
1847	$self->enter_link;	2614	$self->enter_link;
1848		2615
1849	(async {	2616	(async {
		2617	$Coro::current->{desc} = "player::goto $path $x $y";
		2618
		2619	# *tag paths override both path and x|y
		2620	if ($path =~ /^\*(.*)$/) {
		2621	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2622	my $ob = $obs[rand @obs];
		2623
		2624	# see if we actually can go there
		2625	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2626	$ob = $obs[rand @obs];
		2627	} else {
		2628	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2629	}
		2630	# else put us there anyways for now #d#
		2631
		2632	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2633	} else {
		2634	($path, $x, $y) = (undef, undef, undef);
		2635	}
		2636	}
		2637
1850	my $map = eval {	2638	my $map = eval {
1851	my $map = cf::map::find $path;	2639	my $map = defined $path ? cf::map::find $path : undef;
		2640
		2641	if ($map) {
1852	$map = $map->customise_for ($self) if $map;	2642	$map = $map->customise_for ($self);
		2643	$map = $check->($map) if $check && $map;
		2644	} else {
		2645	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2646	}
		2647
1853	$map	2648	$map
		2649	};
		2650
		2651	if ($@) {
		2652	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2653	LOG llevError | logBacktrace, Carp::longmess $@;
1854	} or	2654	}
1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1856		2655
		2656	if ($gen == $self->{_goto_generation}) {
		2657	delete $self->{_goto_generation};
1857	$self->leave_link ($map, $x, $y);	2658	$self->leave_link ($map, $x, $y);
		2659	}
		2660
		2661	$done->() if $done;
1858	})->prio (1);	2662	})->prio (1);
1859	}	2663	}
1860		2664
1861	=item $player_object->enter_exit ($exit_object)	2665	=item $player_object->enter_exit ($exit_object)
1862		2666
…		…
1882	}	2686	}
1883		2687
1884	sub prepare_random_map {	2688	sub prepare_random_map {
1885	my ($exit) = @_;	2689	my ($exit) = @_;
1886		2690
1887	my $guard = cf::lock_acquire "exit_prepare:$exit";
1888
1889	# all this does is basically replace the /! path by	2691	# all this does is basically replace the /! path by
1890	# a new random map path (?random/...) with a seed	2692	# a new random map path (?random/...) with a seed
1891	# that depends on the exit object	2693	# that depends on the exit object
1892		2694
1893	my $rmp = parse_random_map_params $exit->msg;	2695	my $rmp = parse_random_map_params $exit->msg;
…		…
1895	if ($exit->map) {	2697	if ($exit->map) {
1896	$rmp->{region} = $exit->region->name;	2698	$rmp->{region} = $exit->region->name;
1897	$rmp->{origin_map} = $exit->map->path;	2699	$rmp->{origin_map} = $exit->map->path;
1898	$rmp->{origin_x} = $exit->x;	2700	$rmp->{origin_x} = $exit->x;
1899	$rmp->{origin_y} = $exit->y;	2701	$rmp->{origin_y} = $exit->y;
		2702
		2703	$exit->map->touch;
1900	}	2704	}
1901		2705
1902	$rmp->{random_seed} ||= $exit->random_seed;	2706	$rmp->{random_seed} ||= $exit->random_seed;
1903		2707
1904	my $data = cf::to_json $rmp;	2708	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1905	my $md5 = Digest::MD5::md5_hex $data;	2709	my $md5 = Digest::MD5::md5_hex $data;
1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2710	my $meta = "$RANDOMDIR/$md5.meta";
1907		2711
1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2712	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1909	aio_write $fh, 0, (length $data), $data, 0;	2713	aio_write $fh, 0, (length $data), $data, 0;
1910	undef $fh;	2714	undef $fh;
1911	aio_rename "$meta~", $meta;	2715	aio_rename "$meta~", $meta;
1912		2716
		2717	my $slaying = "?random/$md5";
		2718
		2719	if ($exit->valid) {
1913	$exit->slaying ("?random/$md5");	2720	$exit->slaying ("?random/$md5");
1914	$exit->msg (undef);	2721	$exit->msg (undef);
		2722	}
1915	}	2723	}
1916	}	2724	}
1917		2725
1918	sub cf::object::player::enter_exit {	2726	sub cf::object::player::enter_exit {
1919	my ($self, $exit) = @_;	2727	my ($self, $exit) = @_;
1920		2728
1921	return unless $self->type == cf::PLAYER;	2729	return unless $self->type == cf::PLAYER;
1922		2730
1923	if ($exit->slaying eq "/!") {
1924	#TODO: this should de-fi-ni-te-ly not be a sync-job
1925	cf::sync_job { prepare_random_map $exit };
1926	}
1927
1928	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1929	my $hp = $exit->stats->hp;
1930	my $sp = $exit->stats->sp;
1931
1932	$self->enter_link;	2731	$self->enter_link;
1933		2732
1934	(async {	2733	(async {
1935	$self->deactivate_recursive; # just to be sure	2734	$Coro::current->{desc} = "enter_exit";
		2735
1936	unless (eval {	2736	unless (eval {
		2737	$self->deactivate_recursive; # just to be sure
		2738
		2739	# random map handling
		2740	{
		2741	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2742
		2743	prepare_random_map $exit
		2744	if $exit->slaying eq "/!";
		2745	}
		2746
		2747	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2748	my $x = $exit->stats->hp;
		2749	my $y = $exit->stats->sp;
		2750
1937	$self->goto ($slaying, $hp, $sp);	2751	$self->goto ($map, $x, $y);
1938		2752
		2753	# if exit is damned, update players death & WoR home-position
		2754	$self->contr->savebed ($map, $x, $y)
		2755	if $exit->flag (cf::FLAG_DAMNED);
		2756
1939	1;	2757	1
1940	}) {	2758	}) {
1941	$self->message ("Something went wrong deep within the crossfire server. "	2759	$self->message ("Something went wrong deep within the deliantra server. "
1942	. "I'll try to bring you back to the map you were before. "	2760	. "I'll try to bring you back to the map you were before. "
1943	. "Please report this to the dungeon master!",	2761	. "Please report this to the dungeon master!",
1944	cf::NDI_UNIQUE | cf::NDI_RED);	2762	cf::NDI_UNIQUE | cf::NDI_RED);
1945		2763
1946	warn "ERROR in enter_exit: $@";	2764	warn "ERROR in enter_exit: $@";
1947	$self->leave_link;	2765	$self->leave_link;
1948	}	2766	}
1949	})->prio (1);	2767	})->prio (1);
…		…
1962		2780
1963	sub cf::client::send_drawinfo {	2781	sub cf::client::send_drawinfo {
1964	my ($self, $text, $flags) = @_;	2782	my ($self, $text, $flags) = @_;
1965		2783
1966	utf8::encode $text;	2784	utf8::encode $text;
1967	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2785	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1968	}	2786	}
1969		2787
		2788	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2789
		2790	Send a drawinfo or msg packet to the client, formatting the msg for the
		2791	client if neccessary. C<$type> should be a string identifying the type of
		2792	the message, with C<log> being the default. If C<$color> is negative, suppress
		2793	the message unless the client supports the msg packet.
		2794
		2795	=cut
		2796
		2797	# non-persistent channels (usually the info channel)
		2798	our %CHANNEL = (
		2799	"c/motd" => {
		2800	id => "infobox",
		2801	title => "MOTD",
		2802	reply => undef,
		2803	tooltip => "The message of the day",
		2804	},
		2805	"c/identify" => {
		2806	id => "infobox",
		2807	title => "Identify",
		2808	reply => undef,
		2809	tooltip => "Items recently identified",
		2810	},
		2811	"c/examine" => {
		2812	id => "infobox",
		2813	title => "Examine",
		2814	reply => undef,
		2815	tooltip => "Signs and other items you examined",
		2816	},
		2817	"c/shopinfo" => {
		2818	id => "infobox",
		2819	title => "Shop Info",
		2820	reply => undef,
		2821	tooltip => "What your bargaining skill tells you about the shop",
		2822	},
		2823	"c/book" => {
		2824	id => "infobox",
		2825	title => "Book",
		2826	reply => undef,
		2827	tooltip => "The contents of a note or book",
		2828	},
		2829	"c/lookat" => {
		2830	id => "infobox",
		2831	title => "Look",
		2832	reply => undef,
		2833	tooltip => "What you saw there",
		2834	},
		2835	"c/who" => {
		2836	id => "infobox",
		2837	title => "Players",
		2838	reply => undef,
		2839	tooltip => "Shows players who are currently online",
		2840	},
		2841	"c/body" => {
		2842	id => "infobox",
		2843	title => "Body Parts",
		2844	reply => undef,
		2845	tooltip => "Shows which body parts you posess and are available",
		2846	},
		2847	"c/statistics" => {
		2848	id => "infobox",
		2849	title => "Statistics",
		2850	reply => undef,
		2851	tooltip => "Shows your primary statistics",
		2852	},
		2853	"c/skills" => {
		2854	id => "infobox",
		2855	title => "Skills",
		2856	reply => undef,
		2857	tooltip => "Shows your experience per skill and item power",
		2858	},
		2859	"c/shopitems" => {
		2860	id => "infobox",
		2861	title => "Shop Items",
		2862	reply => undef,
		2863	tooltip => "Shows the items currently for sale in this shop",
		2864	},
		2865	"c/resistances" => {
		2866	id => "infobox",
		2867	title => "Resistances",
		2868	reply => undef,
		2869	tooltip => "Shows your resistances",
		2870	},
		2871	"c/pets" => {
		2872	id => "infobox",
		2873	title => "Pets",
		2874	reply => undef,
		2875	tooltip => "Shows information abotu your pets/a specific pet",
		2876	},
		2877	"c/perceiveself" => {
		2878	id => "infobox",
		2879	title => "Perceive Self",
		2880	reply => undef,
		2881	tooltip => "You gained detailed knowledge about yourself",
		2882	},
		2883	"c/uptime" => {
		2884	id => "infobox",
		2885	title => "Uptime",
		2886	reply => undef,
		2887	tooltip => "How long the server has been running since last restart",
		2888	},
		2889	"c/mapinfo" => {
		2890	id => "infobox",
		2891	title => "Map Info",
		2892	reply => undef,
		2893	tooltip => "Information related to the maps",
		2894	},
		2895	"c/party" => {
		2896	id => "party",
		2897	title => "Party",
		2898	reply => "gsay ",
		2899	tooltip => "Messages and chat related to your party",
		2900	},
		2901	"c/death" => {
		2902	id => "death",
		2903	title => "Death",
		2904	reply => undef,
		2905	tooltip => "Reason for and more info about your most recent death",
		2906	},
		2907	"c/say" => $SAY_CHANNEL,
		2908	"c/chat" => $CHAT_CHANNEL,
		2909	);
		2910
		2911	sub cf::client::send_msg {
		2912	my ($self, $channel, $msg, $color, @extra) = @_;
		2913
		2914	$msg = $self->pl->expand_cfpod ($msg)
		2915	unless $color & cf::NDI_VERBATIM;
		2916
		2917	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2918
		2919	# check predefined channels, for the benefit of C
		2920	if ($CHANNEL{$channel}) {
		2921	$channel = $CHANNEL{$channel};
		2922
		2923	$self->ext_msg (channel_info => $channel);
		2924	$channel = $channel->{id};
		2925
		2926	} elsif (ref $channel) {
		2927	# send meta info to client, if not yet sent
		2928	unless (exists $self->{channel}{$channel->{id}}) {
		2929	$self->{channel}{$channel->{id}} = $channel;
		2930	$self->ext_msg (channel_info => $channel);
		2931	}
		2932
		2933	$channel = $channel->{id};
		2934	}
		2935
		2936	return unless @extra || length $msg;
		2937
		2938	# default colour, mask it out
		2939	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2940	if $color & cf::NDI_DEF;
		2941
		2942	my $pkt = "msg "
		2943	. $self->{json_coder}->encode (
		2944	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2945	);
		2946
		2947	# try lzf for large packets
		2948	$pkt = "lzf " . Compress::LZF::compress $pkt
		2949	if 1024 <= length $pkt and $self->{can_lzf};
		2950
		2951	# split very large packets
		2952	if (8192 < length $pkt and $self->{can_lzf}) {
		2953	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2954	$pkt = "frag";
		2955	}
		2956
		2957	$self->send_packet ($pkt);
		2958	}
		2959
		2960	=item $client->ext_msg ($type, @msg)
		2961
		2962	Sends an ext event to the client.
		2963
		2964	=cut
		2965
		2966	sub cf::client::ext_msg($$@) {
		2967	my ($self, $type, @msg) = @_;
		2968
		2969	if ($self->extcmd == 2) {
		2970	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2971	} elsif ($self->extcmd == 1) { # TODO: remove
		2972	push @msg, msgtype => "event_$type";
		2973	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2974	}
		2975	}
		2976
		2977	=item $client->ext_reply ($msgid, @msg)
		2978
		2979	Sends an ext reply to the client.
		2980
		2981	=cut
		2982
		2983	sub cf::client::ext_reply($$@) {
		2984	my ($self, $id, @msg) = @_;
		2985
		2986	if ($self->extcmd == 2) {
		2987	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2988	} elsif ($self->extcmd == 1) {
		2989	#TODO: version 1, remove
		2990	unshift @msg, msgtype => "reply", msgid => $id;
		2991	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
1970		2994
1971	=item $success = $client->query ($flags, "text", \&cb)	2995	=item $success = $client->query ($flags, "text", \&cb)
1972		2996
1973	Queues a query to the client, calling the given callback with	2997	Queues a query to the client, calling the given callback with
1974	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2998	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1975	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2999	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1976		3000
1977	Queries can fail, so check the return code. Or don't, as queries will become	3001	Queries can fail, so check the return code. Or don't, as queries will
1978	reliable at some point in the future.	3002	become reliable at some point in the future.
1979		3003
1980	=cut	3004	=cut
1981		3005
1982	sub cf::client::query {	3006	sub cf::client::query {
1983	my ($self, $flags, $text, $cb) = @_;	3007	my ($self, $flags, $text, $cb) = @_;
…		…
1991	utf8::encode $text;	3015	utf8::encode $text;
1992	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3016	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1993		3017
1994	$self->send_packet ($self->{query_queue}[0][0])	3018	$self->send_packet ($self->{query_queue}[0][0])
1995	if @{ $self->{query_queue} } == 1;	3019	if @{ $self->{query_queue} } == 1;
		3020
		3021	1
1996	}	3022	}
1997		3023
1998	cf::client->attach (	3024	cf::client->attach (
		3025	on_connect => sub {
		3026	my ($ns) = @_;
		3027
		3028	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3029	},
1999	on_reply => sub {	3030	on_reply => sub {
2000	my ($ns, $msg) = @_;	3031	my ($ns, $msg) = @_;
2001		3032
2002	# this weird shuffling is so that direct followup queries	3033	# this weird shuffling is so that direct followup queries
2003	# get handled first	3034	# get handled first
…		…
2015	} else {	3046	} else {
2016	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2017	}	3048	}
2018	}	3049	}
2019	},	3050	},
		3051	on_exticmd => sub {
		3052	my ($ns, $buf) = @_;
		3053
		3054	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3055
		3056	if (ref $msg) {
		3057	my ($type, $reply, @payload) =
		3058	"ARRAY" eq ref $msg
		3059	? @$msg
		3060	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3061
		3062	my @reply;
		3063
		3064	if (my $cb = $EXTICMD{$type}) {
		3065	@reply = $cb->($ns, @payload);
		3066	}
		3067
		3068	$ns->ext_reply ($reply, @reply)
		3069	if $reply;
		3070
		3071	} else {
		3072	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3073	}
		3074
		3075	cf::override;
		3076	},
2020	);	3077	);
2021		3078
2022	=item $client->async (\&cb)	3079	=item $client->async (\&cb)
2023		3080
2024	Create a new coroutine, running the specified callback. The coroutine will	3081	Create a new coroutine, running the specified callback. The coroutine will
…		…
2065	our $safe = new Safe "safe";	3122	our $safe = new Safe "safe";
2066	our $safe_hole = new Safe::Hole;	3123	our $safe_hole = new Safe::Hole;
2067		3124
2068	$SIG{FPE} = 'IGNORE';	3125	$SIG{FPE} = 'IGNORE';
2069		3126
2070	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3127	$safe->permit_only (Opcode::opset qw(
		3128	:base_core :base_mem :base_orig :base_math
		3129	grepstart grepwhile mapstart mapwhile
		3130	sort time
		3131	));
2071		3132
2072	# here we export the classes and methods available to script code	3133	# here we export the classes and methods available to script code
2073		3134
2074	=pod	3135	=pod
2075		3136
2076	The following fucntions and emthods are available within a safe environment:	3137	The following functions and methods are available within a safe environment:
2077		3138
2078	cf::object contr pay_amount pay_player map	3139	cf::object
		3140	contr pay_amount pay_player map x y force_find force_add destroy
		3141	insert remove name archname title slaying race decrease split
		3142	value
		3143
2079	cf::object::player player	3144	cf::object::player
2080	cf::player peaceful	3145	player
2081	cf::map trigger	3146
		3147	cf::player
		3148	peaceful
		3149
		3150	cf::map
		3151	trigger
2082		3152
2083	=cut	3153	=cut
2084		3154
2085	for (	3155	for (
2086	["cf::object" => qw(contr pay_amount pay_player map)],	3156	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3157	insert remove inv nrof name archname title slaying race
		3158	decrease split destroy change_exp value msg lore send_msg)],
2087	["cf::object::player" => qw(player)],	3159	["cf::object::player" => qw(player)],
2088	["cf::player" => qw(peaceful)],	3160	["cf::player" => qw(peaceful send_msg)],
2089	["cf::map" => qw(trigger)],	3161	["cf::map" => qw(trigger)],
2090	) {	3162	) {
2091	no strict 'refs';	3163	no strict 'refs';
2092	my ($pkg, @funs) = @$_;	3164	my ($pkg, @funs) = @$_;
2093	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3165	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2110	my ($code, %vars) = @_;	3182	my ($code, %vars) = @_;
2111		3183
2112	my $qcode = $code;	3184	my $qcode = $code;
2113	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3185	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2114	$qcode =~ s/\n/\\n/g;	3186	$qcode =~ s/\n/\\n/g;
		3187
		3188	%vars = (_dummy => 0) unless %vars;
2115		3189
2116	local $_;	3190	local $_;
2117	local @safe::cf::_safe_eval_args = values %vars;	3191	local @safe::cf::_safe_eval_args = values %vars;
2118		3192
2119	my $eval =	3193	my $eval =
…		…
2162	=back	3236	=back
2163		3237
2164	=cut	3238	=cut
2165		3239
2166	#############################################################################	3240	#############################################################################
2167
2168	=head2 EXTENSION DATABASE SUPPORT
2169
2170	Crossfire maintains a very simple database for extension use. It can
2171	currently store anything that can be serialised using Storable, which
2172	excludes objects.
2173
2174	The parameter C<$family> should best start with the name of the extension
2175	using it, it should be unique.
2176
2177	=over 4
2178
2179	=item $hashref = cf::db_get $family
2180
2181	Return a hashref for use by the extension C<$family>, which can be
2182	modified. After modifications, you have to call C<cf::db_dirty> or
2183	C<cf::db_sync>.
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database
2188
2189	=item cf::db_put $family => $hashref
2190
2191	Stores the given family hashref into the database. Updates are delayed, if
2192	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2193
2194	=item cf::db_put $family => $key => $value
2195
2196	Stores the given C<$value> in the family hash. Updates are delayed, if you
2197	want the data to be synced to disk immediately, use C<cf::db_sync>.
2198
2199	=item cf::db_dirty
2200
2201	Marks the database as dirty, to be updated at a later time.
2202
2203	=item cf::db_sync
2204
2205	Immediately write the database to disk I<if it is dirty>.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	{
2212	my $path = cf::localdir . "/database.pst";
2213
2214	sub db_load() {
2215	$DB = stat $path ? Storable::retrieve $path : { };
2216	}
2217
2218	my $pid;
2219
2220	sub db_save() {
2221	waitpid $pid, 0 if $pid;
2222	if (0 == ($pid = fork)) {
2223	$DB->{_meta}{version} = 1;
2224	Storable::nstore $DB, "$path~";
2225	rename "$path~", $path;
2226	cf::_exit 0 if defined $pid;
2227	}
2228	}
2229
2230	my $dirty;
2231
2232	sub db_sync() {
2233	db_save if $dirty;
2234	undef $dirty;
2235	}
2236
2237	my $idle = Event->idle (
2238	reentrant => 0,
2239	min => 10,
2240	max => 20,
2241	repeat => 0,
2242	data => WF_AUTOCANCEL,
2243	cb => \&db_sync,
2244	);
2245
2246	sub db_dirty() {
2247	$dirty = 1;
2248	$idle->start;
2249	}
2250
2251	sub db_get($;$) {
2252	@_ >= 2
2253	? $DB->{$_[0]}{$_[1]}
2254	: ($DB->{$_[0]} ||= { })
2255	}
2256
2257	sub db_put($$;$) {
2258	if (@_ >= 3) {
2259	$DB->{$_[0]}{$_[1]} = $_[2];
2260	} else {
2261	$DB->{$_[0]} = $_[1];
2262	}
2263	db_dirty;
2264	}
2265
2266	cf::global->attach (
2267	prio => 10000,
2268	on_cleanup => sub {
2269	db_sync;
2270	},
2271	);
2272	}
2273
2274	#############################################################################
2275	# the server's init and main functions	3241	# the server's init and main functions
2276		3242
		3243	sub load_facedata($) {
		3244	my ($path) = @_;
		3245
		3246	# HACK to clear player env face cache, we need some signal framework
		3247	# for this (global event?)
		3248	%ext::player_env::MUSIC_FACE_CACHE = ();
		3249
		3250	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3251
		3252	warn "loading facedata from $path\n";
		3253
		3254	my $facedata;
		3255	0 < aio_load $path, $facedata
		3256	or die "$path: $!";
		3257
		3258	$facedata = Coro::Storable::thaw $facedata;
		3259
		3260	$facedata->{version} == 2
		3261	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3262
		3263	# patch in the exptable
		3264	$facedata->{resource}{"res/exp_table"} = {
		3265	type => FT_RSRC,
		3266	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3267	};
		3268	cf::cede_to_tick;
		3269
		3270	{
		3271	my $faces = $facedata->{faceinfo};
		3272
		3273	while (my ($face, $info) = each %$faces) {
		3274	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3275
		3276	cf::face::set_visibility $idx, $info->{visibility};
		3277	cf::face::set_magicmap $idx, $info->{magicmap};
		3278	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3279	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3280
		3281	cf::cede_to_tick;
		3282	}
		3283
		3284	while (my ($face, $info) = each %$faces) {
		3285	next unless $info->{smooth};
		3286
		3287	my $idx = cf::face::find $face
		3288	or next;
		3289
		3290	if (my $smooth = cf::face::find $info->{smooth}) {
		3291	cf::face::set_smooth $idx, $smooth;
		3292	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3293	} else {
		3294	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3295	}
		3296
		3297	cf::cede_to_tick;
		3298	}
		3299	}
		3300
		3301	{
		3302	my $anims = $facedata->{animinfo};
		3303
		3304	while (my ($anim, $info) = each %$anims) {
		3305	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3306	cf::cede_to_tick;
		3307	}
		3308
		3309	cf::anim::invalidate_all; # d'oh
		3310	}
		3311
		3312	{
		3313	# TODO: for gcfclient pleasure, we should give resources
		3314	# that gcfclient doesn't grok a >10000 face index.
		3315	my $res = $facedata->{resource};
		3316
		3317	while (my ($name, $info) = each %$res) {
		3318	if (defined $info->{type}) {
		3319	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3320	my $data;
		3321
		3322	if ($info->{type} & 1) {
		3323	# prepend meta info
		3324
		3325	my $meta = $enc->encode ({
		3326	name => $name,
		3327	%{ $info->{meta} || {} },
		3328	});
		3329
		3330	$data = pack "(w/a*)*", $meta, $info->{data};
		3331	} else {
		3332	$data = $info->{data};
		3333	}
		3334
		3335	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3336	cf::face::set_type $idx, $info->{type};
		3337	} else {
		3338	$RESOURCE{$name} = $info;
		3339	}
		3340
		3341	cf::cede_to_tick;
		3342	}
		3343	}
		3344
		3345	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3346
		3347	1
		3348	}
		3349
		3350	cf::global->attach (on_resource_update => sub {
		3351	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3352	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3353
		3354	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3355	my $sound = $soundconf->{compat}[$_]
		3356	or next;
		3357
		3358	my $face = cf::face::find "sound/$sound->[1]";
		3359	cf::sound::set $sound->[0] => $face;
		3360	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3361	}
		3362
		3363	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3364	my $face = cf::face::find "sound/$v";
		3365	cf::sound::set $k => $face;
		3366	}
		3367	}
		3368	});
		3369
		3370	register_exticmd fx_want => sub {
		3371	my ($ns, $want) = @_;
		3372
		3373	while (my ($k, $v) = each %$want) {
		3374	$ns->fx_want ($k, $v);
		3375	}
		3376	};
		3377
2277	sub load_resources {	3378	sub load_resource_file($) {
2278	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3379	my $guard = lock_acquire "load_resource_file";
		3380
		3381	my $status = load_resource_file_ $_[0];
		3382	get_slot 0.1, 100;
		3383	cf::arch::commit_load;
		3384
		3385	$status
		3386	}
		3387
		3388	sub reload_regions {
		3389	# HACK to clear player env face cache, we need some signal framework
		3390	# for this (global event?)
		3391	%ext::player_env::MUSIC_FACE_CACHE = ();
		3392
		3393	load_resource_file "$MAPDIR/regions"
2279	or die "unable to load regions file\n";#d#	3394	or die "unable to load regions file\n";
2280	}
2281		3395
2282	sub cfg_load {	3396	for (cf::region::list) {
		3397	$_->{match} = qr/$_->{match}/
		3398	if exists $_->{match};
		3399	}
		3400	}
		3401
		3402	sub reload_facedata {
		3403	load_facedata "$DATADIR/facedata"
		3404	or die "unable to load facedata\n";
		3405	}
		3406
		3407	sub reload_archetypes {
		3408	load_resource_file "$DATADIR/archetypes"
		3409	or die "unable to load archetypes\n";
		3410	}
		3411
		3412	sub reload_treasures {
		3413	load_resource_file "$DATADIR/treasures"
		3414	or die "unable to load treasurelists\n";
		3415	}
		3416
		3417	sub reload_resources {
		3418	warn "reloading resource files...\n";
		3419
		3420	reload_facedata;
		3421	reload_archetypes;
		3422	reload_regions;
		3423	reload_treasures;
		3424
		3425	warn "finished reloading resource files\n";
		3426	}
		3427
		3428	sub reload_config {
		3429	warn "reloading config file...\n";
		3430
2283	open my $fh, "<:utf8", cf::confdir . "/config"	3431	open my $fh, "<:utf8", "$CONFDIR/config"
2284	or return;	3432	or return;
2285		3433
2286	local $/;	3434	local $/;
2287	*CFG = YAML::Syck::Load <$fh>;	3435	*CFG = YAML::XS::Load scalar <$fh>;
2288		3436
2289	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3437	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2290		3438
2291	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3439	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2292	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3440	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2296	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3444	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2297	and die "WARNING: m(un)lockall failed: $!\n";	3445	and die "WARNING: m(un)lockall failed: $!\n";
2298	};	3446	};
2299	warn $@ if $@;	3447	warn $@ if $@;
2300	}	3448	}
2301	}
2302		3449
2303	sub init {	3450	warn "finished reloading resource files\n";
2304	load_resources;	3451	}
		3452
		3453	sub pidfile() {
		3454	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3455	or die "$PIDFILE: $!";
		3456	flock $fh, &Fcntl::LOCK_EX
		3457	or die "$PIDFILE: flock: $!";
		3458	$fh
		3459	}
		3460
		3461	# make sure only one server instance is running at any one time
		3462	sub atomic {
		3463	my $fh = pidfile;
		3464
		3465	my $pid = <$fh>;
		3466	kill 9, $pid if $pid > 0;
		3467
		3468	seek $fh, 0, 0;
		3469	print $fh $$;
		3470	}
		3471
		3472	sub main_loop {
		3473	warn "EV::loop starting\n";
		3474	if (1) {
		3475	EV::loop;
		3476	}
		3477	warn "EV::loop returned\n";
		3478	goto &main_loop unless $REALLY_UNLOOP;
2305	}	3479	}
2306		3480
2307	sub main {	3481	sub main {
		3482	cf::init_globals; # initialise logging
		3483
		3484	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3485	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3486	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3487	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3488
		3489	cf::init_experience;
		3490	cf::init_anim;
		3491	cf::init_attackmess;
		3492	cf::init_dynamic;
		3493
		3494	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3495
2308	# we must not ever block the main coroutine	3496	# we must not ever block the main coroutine
2309	local $Coro::idle = sub {	3497	local $Coro::idle = sub {
2310	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3498	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2311	(async {	3499	(async {
2312	Event::one_event;	3500	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3501	EV::loop EV::LOOP_ONESHOT;
2313	})->prio (Coro::PRIO_MAX);	3502	})->prio (Coro::PRIO_MAX);
2314	};	3503	};
2315		3504
2316	cfg_load;	3505	evthread_start IO::AIO::poll_fileno;
2317	db_load;	3506
		3507	cf::sync_job {
		3508	reload_resources;
		3509	reload_config;
		3510	db_init;
		3511
		3512	cf::load_settings;
		3513	cf::load_materials;
		3514	cf::init_uuid;
		3515	cf::init_signals;
		3516	cf::init_commands;
		3517	cf::init_skills;
		3518
		3519	cf::init_beforeplay;
		3520
		3521	atomic;
		3522
2318	load_extensions;	3523	load_extensions;
2319		3524
2320	$TICK_WATCHER->start;	3525	utime time, time, $RUNTIMEFILE;
2321	Event::loop;	3526
		3527	# no (long-running) fork's whatsoever before this point(!)
		3528	use POSIX ();
		3529	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3530
		3531	(pop @POST_INIT)->(0) while @POST_INIT;
		3532	};
		3533
		3534	main_loop;
2322	}	3535	}
2323		3536
2324	#############################################################################	3537	#############################################################################
2325	# initialisation and cleanup	3538	# initialisation and cleanup
2326		3539
2327	# install some emergency cleanup handlers	3540	# install some emergency cleanup handlers
2328	BEGIN {	3541	BEGIN {
		3542	our %SIGWATCHER = ();
2329	for my $signal (qw(INT HUP TERM)) {	3543	for my $signal (qw(INT HUP TERM)) {
2330	Event->signal (	3544	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2331	reentrant => 0,
2332	data => WF_AUTOCANCEL,
2333	signal => $signal,
2334	prio => 0,
2335	cb => sub {
2336	cf::cleanup "SIG$signal";	3545	cf::cleanup "SIG$signal";
2337	},
2338	);	3546	};
		3547	}
		3548	}
		3549
		3550	sub write_runtime_sync {
		3551	# first touch the runtime file to show we are still running:
		3552	# the fsync below can take a very very long time.
		3553
		3554	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3555
		3556	my $guard = cf::lock_acquire "write_runtime";
		3557
		3558	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3559	or return;
		3560
		3561	my $value = $cf::RUNTIME + 90 + 10;
		3562	# 10 is the runtime save interval, for a monotonic clock
		3563	# 60 allows for the watchdog to kill the server.
		3564
		3565	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3566	and return;
		3567
		3568	# always fsync - this file is important
		3569	aio_fsync $fh
		3570	and return;
		3571
		3572	# touch it again to show we are up-to-date
		3573	aio_utime $fh, undef, undef;
		3574
		3575	close $fh
		3576	or return;
		3577
		3578	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3579	and return;
		3580
		3581	warn "runtime file written.\n";
		3582
2339	}	3583	1
		3584	}
		3585
		3586	our $uuid_lock;
		3587	our $uuid_skip;
		3588
		3589	sub write_uuid_sync($) {
		3590	$uuid_skip ||= $_[0];
		3591
		3592	return if $uuid_lock;
		3593	local $uuid_lock = 1;
		3594
		3595	my $uuid = "$LOCALDIR/uuid";
		3596
		3597	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3598	or return;
		3599
		3600	my $value = uuid_seq uuid_cur;
		3601
		3602	unless ($value) {
		3603	warn "cowardly refusing to write zero uuid value!\n";
		3604	return;
		3605	}
		3606
		3607	my $value = uuid_str $value + $uuid_skip;
		3608	$uuid_skip = 0;
		3609
		3610	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3611	and return;
		3612
		3613	# always fsync - this file is important
		3614	aio_fsync $fh
		3615	and return;
		3616
		3617	close $fh
		3618	or return;
		3619
		3620	aio_rename "$uuid~", $uuid
		3621	and return;
		3622
		3623	warn "uuid file written ($value).\n";
		3624
		3625	1
		3626
		3627	}
		3628
		3629	sub write_uuid($$) {
		3630	my ($skip, $sync) = @_;
		3631
		3632	$sync ? write_uuid_sync $skip
		3633	: async { write_uuid_sync $skip };
2340	}	3634	}
2341		3635
2342	sub emergency_save() {	3636	sub emergency_save() {
2343	my $freeze_guard = cf::freeze_mainloop;	3637	my $freeze_guard = cf::freeze_mainloop;
2344		3638
2345	warn "enter emergency perl save\n";	3639	warn "emergency_perl_save: enter\n";
2346		3640
2347	cf::sync_job {	3641	cf::sync_job {
		3642	# this is a trade-off: we want to be very quick here, so
		3643	# save all maps without fsync, and later call a global sync
		3644	# (which in turn might be very very slow)
		3645	local $USE_FSYNC = 0;
		3646
2348	# use a peculiar iteration method to avoid tripping on perl	3647	# use a peculiar iteration method to avoid tripping on perl
2349	# refcount bugs in for. also avoids problems with players	3648	# refcount bugs in for. also avoids problems with players
2350	# and maps saved/destroyed asynchronously.	3649	# and maps saved/destroyed asynchronously.
2351	warn "begin emergency player save\n";	3650	warn "emergency_perl_save: begin player save\n";
2352	for my $login (keys %cf::PLAYER) {	3651	for my $login (keys %cf::PLAYER) {
2353	my $pl = $cf::PLAYER{$login} or next;	3652	my $pl = $cf::PLAYER{$login} or next;
2354	$pl->valid or next;	3653	$pl->valid or next;
		3654	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2355	$pl->save;	3655	$pl->save;
2356	}	3656	}
2357	warn "end emergency player save\n";	3657	warn "emergency_perl_save: end player save\n";
2358		3658
2359	warn "begin emergency map save\n";	3659	warn "emergency_perl_save: begin map save\n";
2360	for my $path (keys %cf::MAP) {	3660	for my $path (keys %cf::MAP) {
2361	my $map = $cf::MAP{$path} or next;	3661	my $map = $cf::MAP{$path} or next;
2362	$map->valid or next;	3662	$map->valid or next;
2363	$map->save;	3663	$map->save;
2364	}	3664	}
2365	warn "end emergency map save\n";	3665	warn "emergency_perl_save: end map save\n";
		3666
		3667	warn "emergency_perl_save: begin database checkpoint\n";
		3668	BDB::db_env_txn_checkpoint $DB_ENV;
		3669	warn "emergency_perl_save: end database checkpoint\n";
		3670
		3671	warn "emergency_perl_save: begin write uuid\n";
		3672	write_uuid_sync 1;
		3673	warn "emergency_perl_save: end write uuid\n";
2366	};	3674	};
2367		3675
		3676	warn "emergency_perl_save: starting sync()\n";
		3677	IO::AIO::aio_sync sub {
		3678	warn "emergency_perl_save: finished sync()\n";
		3679	};
		3680
2368	warn "leave emergency perl save\n";	3681	warn "emergency_perl_save: leave\n";
2369	}	3682	}
2370		3683
		3684	sub post_cleanup {
		3685	my ($make_core) = @_;
		3686
		3687	warn Carp::longmess "post_cleanup backtrace"
		3688	if $make_core;
		3689
		3690	my $fh = pidfile;
		3691	unlink $PIDFILE if <$fh> == $$;
		3692	}
		3693
		3694	# a safer delete_package, copied from Symbol
		3695	sub clear_package($) {
		3696	my $pkg = shift;
		3697
		3698	# expand to full symbol table name if needed
		3699	unless ($pkg =~ /^main::.*::$/) {
		3700	$pkg = "main$pkg" if $pkg =~ /^::/;
		3701	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3702	$pkg .= '::' unless $pkg =~ /::$/;
		3703	}
		3704
		3705	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3706	my $stem_symtab = *{$stem}{HASH};
		3707
		3708	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3709	or return;
		3710
		3711	# clear all symbols
		3712	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3713	for my $name (keys %$leaf_symtab) {
		3714	_gv_clear *{"$pkg$name"};
		3715	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3716	}
		3717	warn "cleared package $pkg\n";#d#
		3718	}
		3719
2371	sub reload() {	3720	sub do_reload_perl() {
2372	# can/must only be called in main	3721	# can/must only be called in main
2373	if ($Coro::current != $Coro::main) {	3722	if ($Coro::current != $Coro::main) {
2374	warn "can only reload from main coroutine";	3723	warn "can only reload from main coroutine";
2375	return;	3724	return;
2376	}	3725	}
2377		3726
		3727	return if $RELOAD++;
		3728
		3729	my $t1 = EV::time;
		3730
		3731	while ($RELOAD) {
2378	warn "reloading...";	3732	warn "reloading...";
2379		3733
2380	warn "cancelling server ticker";	3734	warn "entering sync_job";
2381	$TICK_WATCHER->cancel;
2382		3735
		3736	cf::sync_job {
		3737	cf::write_runtime_sync; # external watchdog should not bark
2383	cf::emergency_save;	3738	cf::emergency_save;
		3739	cf::write_runtime_sync; # external watchdog should not bark
2384		3740
2385	eval {	3741	warn "syncing database to disk";
		3742	BDB::db_env_txn_checkpoint $DB_ENV;
		3743
2386	# if anything goes wrong in here, we should simply crash as we already saved	3744	# if anything goes wrong in here, we should simply crash as we already saved
2387		3745
2388	warn "syncing database to disk";
2389	cf::db_sync;
2390
2391	warn "cancelling all WF_AUTOCANCEL watchers";
2392	for (Event::all_watchers) {
2393	$_->cancel if $_->data & WF_AUTOCANCEL;
2394	}
2395
2396	warn "flushing outstanding aio requests";	3746	warn "flushing outstanding aio requests";
2397	for (;;) {	3747	while (IO::AIO::nreqs || BDB::nreqs) {
2398	IO::AIO::flush;	3748	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2399	Coro::cede;
2400	last unless IO::AIO::nreqs;
2401	warn "iterate...";
2402	}
2403
2404	warn "cancelling all extension coros";
2405	$_->cancel for values %EXT_CORO;
2406	%EXT_CORO = ();
2407
2408	warn "removing commands";
2409	%COMMAND = ();
2410
2411	warn "removing ext commands";
2412	%EXTCMD = ();
2413
2414	warn "unloading/nuking all extensions";
2415	for my $pkg (@EXTS) {
2416	warn "... unloading $pkg";
2417
2418	if (my $cb = $pkg->can ("unload")) {
2419	eval {
2420	$cb->($pkg);
2421	1
2422	} or warn "$pkg unloaded, but with errors: $@";
2423	}	3749	}
2424		3750
2425	warn "... nuking $pkg";	3751	warn "cancelling all extension coros";
2426	Symbol::delete_package $pkg;	3752	$_->cancel for values %EXT_CORO;
2427	}	3753	%EXT_CORO = ();
2428		3754
2429	warn "unloading all perl modules loaded from $LIBDIR";	3755	warn "removing commands";
2430	while (my ($k, $v) = each %INC) {	3756	%COMMAND = ();
2431	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2432		3757
		3758	warn "removing ext/exti commands";
		3759	%EXTCMD = ();
		3760	%EXTICMD = ();
		3761
		3762	warn "unloading/nuking all extensions";
		3763	for my $pkg (@EXTS) {
2433	warn "... unloading $k";	3764	warn "... unloading $pkg";
2434	delete $INC{$k};
2435		3765
2436	$k =~ s/\.pm$//;
2437	$k =~ s/\//::/g;
2438
2439	if (my $cb = $k->can ("unload_module")) {	3766	if (my $cb = $pkg->can ("unload")) {
		3767	eval {
2440	$cb->();	3768	$cb->($pkg);
		3769	1
		3770	} or warn "$pkg unloaded, but with errors: $@";
		3771	}
		3772
		3773	warn "... clearing $pkg";
		3774	clear_package $pkg;
2441	}	3775	}
2442		3776
2443	Symbol::delete_package $k;	3777	warn "unloading all perl modules loaded from $LIBDIR";
		3778	while (my ($k, $v) = each %INC) {
		3779	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3780
		3781	warn "... unloading $k";
		3782	delete $INC{$k};
		3783
		3784	$k =~ s/\.pm$//;
		3785	$k =~ s/\//::/g;
		3786
		3787	if (my $cb = $k->can ("unload_module")) {
		3788	$cb->();
		3789	}
		3790
		3791	clear_package $k;
2444	}	3792	}
2445		3793
2446	warn "getting rid of safe::, as good as possible";	3794	warn "getting rid of safe::, as good as possible";
2447	Symbol::delete_package "safe::$_"	3795	clear_package "safe::$_"
2448	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3796	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2449		3797
2450	warn "unloading cf.pm \"a bit\"";	3798	warn "unloading cf.pm \"a bit\"";
2451	delete $INC{"cf.pm"};	3799	delete $INC{"cf.pm"};
		3800	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2452		3801
2453	# don't, removes xs symbols, too,	3802	# don't, removes xs symbols, too,
2454	# and global variables created in xs	3803	# and global variables created in xs
2455	#Symbol::delete_package __PACKAGE__;	3804	#clear_package __PACKAGE__;
2456		3805
2457	warn "unload completed, starting to reload now";	3806	warn "unload completed, starting to reload now";
2458		3807
2459	warn "reloading cf.pm";	3808	warn "reloading cf.pm";
2460	require cf;	3809	require cf;
2461	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3810	cf::_connect_to_perl_1;
2462		3811
2463	warn "loading config and database again";	3812	warn "loading config and database again";
2464	cf::cfg_load;	3813	cf::reload_config;
2465	cf::db_load;
2466		3814
2467	warn "loading extensions";	3815	warn "loading extensions";
2468	cf::load_extensions;	3816	cf::load_extensions;
2469		3817
		3818	if ($REATTACH_ON_RELOAD) {
2470	warn "reattaching attachments to objects/players";	3819	warn "reattaching attachments to objects/players";
2471	_global_reattach;	3820	_global_reattach; # objects, sockets
2472	warn "reattaching attachments to maps";	3821	warn "reattaching attachments to maps";
2473	reattach $_ for values %MAP;	3822	reattach $_ for values %MAP;
		3823	warn "reattaching attachments to players";
		3824	reattach $_ for values %PLAYER;
		3825	}
2474		3826
2475	warn "loading reloadable resources";	3827	warn "running post_init jobs";
2476	load_resources;	3828	(pop @POST_INIT)->(1) while @POST_INIT;
2477		3829
2478	warn "restarting server ticker";	3830	warn "leaving sync_job";
2479		3831
2480	$TICK_WATCHER->start;	3832	1
		3833	} or do {
		3834	warn $@;
		3835	cf::cleanup "error while reloading, exiting.";
		3836	};
		3837
		3838	warn "reloaded";
		3839	--$RELOAD;
		3840	}
		3841
		3842	$t1 = EV::time - $t1;
		3843	warn "reload completed in ${t1}s\n";
		3844	};
		3845
		3846	our $RELOAD_WATCHER; # used only during reload
		3847
		3848	sub reload_perl() {
		3849	# doing reload synchronously and two reloads happen back-to-back,
		3850	# coro crashes during coro_state_free->destroy here.
		3851
		3852	$RELOAD_WATCHER ||= cf::async {
		3853	Coro::AIO::aio_wait cache_extensions;
		3854
		3855	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3856	do_reload_perl;
		3857	undef $RELOAD_WATCHER;
		3858	};
2481	};	3859	};
2482		3860	}
2483	if ($@) {
2484	warn $@;
2485	warn "error while reloading, exiting.";
2486	exit 1;
2487	}
2488
2489	warn "reloaded";
2490	};
2491
2492	our $RELOAD_WATCHER; # used only during reload
2493		3861
2494	register_command "reload" => sub {	3862	register_command "reload" => sub {
2495	my ($who, $arg) = @_;	3863	my ($who, $arg) = @_;
2496		3864
2497	if ($who->flag (FLAG_WIZ)) {	3865	if ($who->flag (FLAG_WIZ)) {
2498	$who->message ("reloading server.");	3866	$who->message ("reloading server.");
2499		3867	async {
2500	# doing reload synchronously and two reloads happen back-to-back,	3868	$Coro::current->{desc} = "perl_reload";
2501	# coro crashes during coro_state_free->destroy here.
2502
2503	$RELOAD_WATCHER ||= Event->timer (
2504	reentrant => 0,
2505	after => 0,
2506	data => WF_AUTOCANCEL,
2507	cb => sub {
2508	reload;	3869	reload_perl;
2509	undef $RELOAD_WATCHER;
2510	},
2511	);	3870	};
2512	}	3871	}
2513	};	3872	};
2514		3873
2515	unshift @INC, $LIBDIR;	3874	unshift @INC, $LIBDIR;
2516		3875
2517	my $bug_warning = 0;	3876	my $bug_warning = 0;
2518		3877
2519	$TICK_WATCHER = Event->timer (	3878	our @WAIT_FOR_TICK;
2520	reentrant => 0,	3879	our @WAIT_FOR_TICK_BEGIN;
2521	parked => 1,	3880
2522	prio => 0,	3881	sub wait_for_tick {
2523	at => $NEXT_TICK || $TICK,	3882	return if tick_inhibit || $Coro::current == $Coro::main;
2524	data => WF_AUTOCANCEL,	3883
2525	cb => sub {	3884	my $signal = new Coro::Signal;
		3885	push @WAIT_FOR_TICK, $signal;
		3886	$signal->wait;
		3887	}
		3888
		3889	sub wait_for_tick_begin {
		3890	return if tick_inhibit || $Coro::current == $Coro::main;
		3891
		3892	my $signal = new Coro::Signal;
		3893	push @WAIT_FOR_TICK_BEGIN, $signal;
		3894	$signal->wait;
		3895	}
		3896
		3897	sub tick {
2526	if ($Coro::current != $Coro::main) {	3898	if ($Coro::current != $Coro::main) {
2527	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3899	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2528	unless ++$bug_warning > 10;	3900	unless ++$bug_warning > 10;
2529	return;	3901	return;
2530	}	3902	}
2531		3903
2532	$NOW = Event::time;
2533
2534	cf::server_tick; # one server iteration	3904	cf::server_tick; # one server iteration
2535	$RUNTIME += $TICK;
2536	$NEXT_TICK += $TICK;
2537		3905
2538	$WAIT_FOR_TICK->broadcast;	3906	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2539	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3907	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2540		3908	Coro::async_pool {
2541	Event::sweep;	3909	$Coro::current->{desc} = "runtime saver";
2542	Coro::cede_notself;
2543
2544	# my $AFTER = Event::time;
2545	# warn $AFTER - $NOW;#d#
2546
2547	# if we are delayed by four ticks or more, skip them all
2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2549
2550	$TICK_WATCHER->at ($NEXT_TICK);
2551	$TICK_WATCHER->start;
2552	},
2553	);
2554
2555	IO::AIO::max_poll_time $TICK * 0.1;
2556
2557	undef $Coro::AIO::WATCHER;
2558	$AIO_POLL_WATCHER = Event->io (
2559	reentrant => 0,
2560	fd => IO::AIO::poll_fileno,
2561	poll => 'r',
2562	prio => 6,
2563	data => WF_AUTOCANCEL,
2564	cb => \&IO::AIO::poll_cb,
2565	);
2566
2567	$WRITE_RUNTIME_WATCHER = Event->timer (
2568	reentrant => 0,
2569	data => WF_AUTOCANCEL,
2570	after => 1,
2571	interval => 10,
2572	prio => 6, # keep it lowest so it acts like a watchdog
2573	cb => Coro::unblock_sub {
2574	write_runtime	3910	write_runtime_sync
2575	or warn "ERROR: unable to write runtime file: $!";	3911	or warn "ERROR: unable to write runtime file: $!";
		3912	};
2576	},	3913	}
2577	);	3914
		3915	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3916	$sig->send;
		3917	}
		3918	while (my $sig = shift @WAIT_FOR_TICK) {
		3919	$sig->send;
		3920	}
		3921
		3922	$LOAD = ($NOW - $TICK_START) / $TICK;
		3923	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3924
		3925	if (0) {
		3926	if ($NEXT_TICK) {
		3927	my $jitter = $TICK_START - $NEXT_TICK;
		3928	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3929	warn "jitter $JITTER\n";#d#
		3930	}
		3931	}
		3932	}
		3933
		3934	{
		3935	# configure BDB
		3936
		3937	BDB::min_parallel 8;
		3938	BDB::max_poll_reqs $TICK * 0.1;
		3939	$AnyEvent::BDB::WATCHER->priority (1);
		3940
		3941	unless ($DB_ENV) {
		3942	$DB_ENV = BDB::db_env_create;
		3943	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3944	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3945	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3946	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3947	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3948
		3949	cf::sync_job {
		3950	eval {
		3951	BDB::db_env_open
		3952	$DB_ENV,
		3953	$BDBDIR,
		3954	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3955	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3956	0666;
		3957
		3958	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3959	};
		3960
		3961	cf::cleanup "db_env_open(db): $@" if $@;
		3962	};
		3963	}
		3964
		3965	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3966	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3967	};
		3968	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3969	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3970	};
		3971	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3972	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3973	};
		3974	}
		3975
		3976	{
		3977	# configure IO::AIO
		3978
		3979	IO::AIO::min_parallel 8;
		3980	IO::AIO::max_poll_time $TICK * 0.1;
		3981	undef $AnyEvent::AIO::WATCHER;
		3982	}
		3983
		3984	my $_log_backtrace;
		3985
		3986	sub _log_backtrace {
		3987	my ($msg, @addr) = @_;
		3988
		3989	$msg =~ s/\n//;
		3990
		3991	# limit the # of concurrent backtraces
		3992	if ($_log_backtrace < 2) {
		3993	++$_log_backtrace;
		3994	my $perl_bt = Carp::longmess $msg;
		3995	async {
		3996	$Coro::current->{desc} = "abt $msg";
		3997
		3998	my @bt = fork_call {
		3999	@addr = map { sprintf "%x", $_ } @addr;
		4000	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4001	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4002	or die "addr2line: $!";
		4003
		4004	my @funcs;
		4005	my @res = <$fh>;
		4006	chomp for @res;
		4007	while (@res) {
		4008	my ($func, $line) = splice @res, 0, 2, ();
		4009	push @funcs, "[$func] $line";
		4010	}
		4011
		4012	@funcs
		4013	};
		4014
		4015	LOG llevInfo, "[ABT] $perl_bt\n";
		4016	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4017	LOG llevInfo, "[ABT] $_\n" for @bt;
		4018	--$_log_backtrace;
		4019	};
		4020	} else {
		4021	LOG llevInfo, "[ABT] $msg\n";
		4022	LOG llevInfo, "[ABT] [suppressed]\n";
		4023	}
		4024	}
		4025
		4026	# load additional modules
		4027	require "cf/$_.pm" for @EXTRA_MODULES;
		4028	cf::_connect_to_perl_2;
2578		4029
2579	END { cf::emergency_save }	4030	END { cf::emergency_save }
2580		4031
2581	1	4032	1
2582		4033

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