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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.201 by root, Mon Jan 29 18:15:23 2007 UTC vs.
Revision 1.487 by root, Fri Oct 16 01:56:41 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
1658	package cf;
1659		2345
1660	=back	2346	=back
1661		2347
1662	=head3 cf::object	2348	=head3 cf::object
1663		2349
…		…
1667		2353
1668	=over 4	2354	=over 4
1669		2355
1670	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1671		2357
1672	Returns the inventory of the object _and_ their inventories, recursively.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
1673		2360
1674	=cut	2361	=cut
1675		2362
1676	sub inv_recursive_;	2363	sub inv_recursive_;
1677	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1680		2367
1681	sub inv_recursive {	2368	sub inv_recursive {
1682	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1683	}	2370	}
1684		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
1685	package cf;	2400	package cf;
1686		2401
1687	=back	2402	=back
1688		2403
1689	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1695	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1696	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
1697	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1698		2413
1699	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
1700		2429
1701	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1702	# with dialog boxes.	2431	# with dialog boxes.
1703	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
1704	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1706		2435
1707	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1708		2437
1709	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1710	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1711	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
1712	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1713	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1714	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
1715	}	2463	}
1716		2464
1717	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1718		2466
1719	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1732		2480
1733	=item $player_object->enter_link	2481	=item $player_object->enter_link
1734		2482
1735	Freezes the player and moves him/her to a special map (C<{link}>).	2483	Freezes the player and moves him/her to a special map (C<{link}>).
1736		2484
1737	The player should be reasonably safe there for short amounts of time. You	2485	The player should be reasonably safe there for short amounts of time (e.g.
1738	I<MUST> call C<leave_link> as soon as possible, though.	2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
1739		2489
1740	Will never block.	2490	Will never block.
1741		2491
1742	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1743		2493
…		…
1766	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1767		2517
1768	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1769		2519
1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1771	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1772		2522
1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1774	}	2524	}
1775		2525
1776	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1777	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1778		2530
1779	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1780		2532
1781	unless ($map) {	2533	unless ($map) {
1782	# restore original map position	2534	# restore original map position
…		…
1796	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1797	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1798	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1799		2551
1800	$map->load;	2552	$map->load;
1801	$map->load_diag;	2553	$map->load_neighbours;
1802		2554
1803	return unless $self->contr->active;	2555	return unless $self->contr->active;
		2556
		2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2558	$self->enter_map ($map, $x, $y);
		2559
		2560	# only activate afterwards, to support waiting in hooks
1804	$self->activate_recursive;	2561	$self->activate_recursive;
1805	$self->enter_map ($map, $x, $y);
1806	}	2562	}
1807		2563
1808	cf::player->attach (	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1809	on_logout => sub {
1810	my ($pl) = @_;
1811		2565
1812	# abort map switching before logout	2566	Moves the player to the given map-path and coordinates by first freezing
1813	if ($pl->ob->{_link_pos}) {	2567	her, loading and preparing them map, calling the provided $check callback
1814	cf::sync_job {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1815	$pl->ob->leave_link	2569	the new (success) or old (failed) map position. In either case, $done will
1816	};	2570	be called at the end of this process.
1817	}
1818	},
1819	on_login => sub {
1820	my ($pl) = @_;
1821		2571
1822	# try to abort aborted map switching on player login :)	2572	Note that $check will be called with a potentially non-loaded map, so if
1823	# should happen only on crashes	2573	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		2574
1840	=item $player_object->goto ($path, $x, $y)
1841
1842	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1843		2578
1844	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1845	my ($self, $path, $x, $y) = @_;	2580	my ($self, $path, $x, $y, $check, $done) = @_;
		2581
		2582	# do generation counting so two concurrent goto's will be executed in-order
		2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1846		2584
1847	$self->enter_link;	2585	$self->enter_link;
1848		2586
1849	(async {	2587	(async {
		2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
1850	my $map = eval {	2609	my $map = eval {
1851	my $map = cf::map::find $path;	2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1852	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
		2614	$map = $check->($map) if $check && $map;
		2615	} else {
		2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618
1853	$map	2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
1854	} or	2625	}
1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1856		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1857	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1858	})->prio (1);	2633	})->prio (1);
1859	}	2634	}
1860		2635
1861	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1862		2637
…		…
1882	}	2657	}
1883		2658
1884	sub prepare_random_map {	2659	sub prepare_random_map {
1885	my ($exit) = @_;	2660	my ($exit) = @_;
1886		2661
1887	my $guard = cf::lock_acquire "exit_prepare:$exit";
1888
1889	# all this does is basically replace the /! path by	2662	# all this does is basically replace the /! path by
1890	# a new random map path (?random/...) with a seed	2663	# a new random map path (?random/...) with a seed
1891	# that depends on the exit object	2664	# that depends on the exit object
1892		2665
1893	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
…		…
1895	if ($exit->map) {	2668	if ($exit->map) {
1896	$rmp->{region} = $exit->region->name;	2669	$rmp->{region} = $exit->region->name;
1897	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
1898	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
1899	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
1900	}	2675	}
1901		2676
1902	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
1903		2678
1904	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1905	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2681	my $meta = "$RANDOMDIR/$md5.meta";
1907		2682
1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1909	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
1910	undef $fh;	2685	undef $fh;
1911	aio_rename "$meta~", $meta;	2686	aio_rename "$meta~", $meta;
1912		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
1913	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
1914	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
1915	}	2694	}
1916	}	2695	}
1917		2696
1918	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
1919	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
1920		2699
1921	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
1922		2701
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;	2702	$self->enter_link;
1933		2703
1934	(async {	2704	(async {
1935	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
1936	unless (eval {	2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
		2714	prepare_random_map $exit
		2715	if $exit->slaying eq "/!";
		2716	}
		2717
		2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
		2721
1937	$self->goto ($slaying, $hp, $sp);	2722	$self->goto ($map, $x, $y);
1938		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
1939	1;	2728	1
1940	}) {	2729	}) {
1941	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
1942	. "I'll try to bring you back to the map you were before. "	2731	. "I'll try to bring you back to the map you were before. "
1943	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
1944	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
1945		2734
1946	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
1947	$self->leave_link;	2736	$self->leave_link;
1948	}	2737	}
1949	})->prio (1);	2738	})->prio (1);
…		…
1962		2751
1963	sub cf::client::send_drawinfo {	2752	sub cf::client::send_drawinfo {
1964	my ($self, $text, $flags) = @_;	2753	my ($self, $text, $flags) = @_;
1965		2754
1966	utf8::encode $text;	2755	utf8::encode $text;
1967	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1968	}	2757	}
1969		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/motd" => {
		2771	id => "infobox",
		2772	title => "MOTD",
		2773	reply => undef,
		2774	tooltip => "The message of the day",
		2775	},
		2776	"c/identify" => {
		2777	id => "infobox",
		2778	title => "Identify",
		2779	reply => undef,
		2780	tooltip => "Items recently identified",
		2781	},
		2782	"c/examine" => {
		2783	id => "infobox",
		2784	title => "Examine",
		2785	reply => undef,
		2786	tooltip => "Signs and other items you examined",
		2787	},
		2788	"c/shopinfo" => {
		2789	id => "infobox",
		2790	title => "Shop Info",
		2791	reply => undef,
		2792	tooltip => "What your bargaining skill tells you about the shop",
		2793	},
		2794	"c/book" => {
		2795	id => "infobox",
		2796	title => "Book",
		2797	reply => undef,
		2798	tooltip => "The contents of a note or book",
		2799	},
		2800	"c/lookat" => {
		2801	id => "infobox",
		2802	title => "Look",
		2803	reply => undef,
		2804	tooltip => "What you saw there",
		2805	},
		2806	"c/who" => {
		2807	id => "infobox",
		2808	title => "Players",
		2809	reply => undef,
		2810	tooltip => "Shows players who are currently online",
		2811	},
		2812	"c/body" => {
		2813	id => "infobox",
		2814	title => "Body Parts",
		2815	reply => undef,
		2816	tooltip => "Shows which body parts you posess and are available",
		2817	},
		2818	"c/statistics" => {
		2819	id => "infobox",
		2820	title => "Statistics",
		2821	reply => undef,
		2822	tooltip => "Shows your primary statistics",
		2823	},
		2824	"c/skills" => {
		2825	id => "infobox",
		2826	title => "Skills",
		2827	reply => undef,
		2828	tooltip => "Shows your experience per skill and item power",
		2829	},
		2830	"c/shopitems" => {
		2831	id => "infobox",
		2832	title => "Shop Items",
		2833	reply => undef,
		2834	tooltip => "Shows the items currently for sale in this shop",
		2835	},
		2836	"c/resistances" => {
		2837	id => "infobox",
		2838	title => "Resistances",
		2839	reply => undef,
		2840	tooltip => "Shows your resistances",
		2841	},
		2842	"c/pets" => {
		2843	id => "infobox",
		2844	title => "Pets",
		2845	reply => undef,
		2846	tooltip => "Shows information abotu your pets/a specific pet",
		2847	},
		2848	"c/perceiveself" => {
		2849	id => "infobox",
		2850	title => "Perceive Self",
		2851	reply => undef,
		2852	tooltip => "You gained detailed knowledge about yourself",
		2853	},
		2854	"c/uptime" => {
		2855	id => "infobox",
		2856	title => "Uptime",
		2857	reply => undef,
		2858	tooltip => "How long the server has been running since last restart",
		2859	},
		2860	"c/mapinfo" => {
		2861	id => "infobox",
		2862	title => "Map Info",
		2863	reply => undef,
		2864	tooltip => "Information related to the maps",
		2865	},
		2866	"c/party" => {
		2867	id => "party",
		2868	title => "Party",
		2869	reply => "gsay ",
		2870	tooltip => "Messages and chat related to your party",
		2871	},
		2872	"c/death" => {
		2873	id => "death",
		2874	title => "Death",
		2875	reply => undef,
		2876	tooltip => "Reason for and more info about your most recent death",
		2877	},
		2878	"c/say" => $SAY_CHANNEL,
		2879	"c/chat" => $CHAT_CHANNEL,
		2880	);
		2881
		2882	sub cf::client::send_msg {
		2883	my ($self, $channel, $msg, $color, @extra) = @_;
		2884
		2885	$msg = $self->pl->expand_cfpod ($msg)
		2886	unless $color & cf::NDI_VERBATIM;
		2887
		2888	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2889
		2890	# check predefined channels, for the benefit of C
		2891	if ($CHANNEL{$channel}) {
		2892	$channel = $CHANNEL{$channel};
		2893
		2894	$self->ext_msg (channel_info => $channel);
		2895	$channel = $channel->{id};
		2896
		2897	} elsif (ref $channel) {
		2898	# send meta info to client, if not yet sent
		2899	unless (exists $self->{channel}{$channel->{id}}) {
		2900	$self->{channel}{$channel->{id}} = $channel;
		2901	$self->ext_msg (channel_info => $channel);
		2902	}
		2903
		2904	$channel = $channel->{id};
		2905	}
		2906
		2907	return unless @extra || length $msg;
		2908
		2909	# default colour, mask it out
		2910	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2911	if $color & cf::NDI_DEF;
		2912
		2913	my $pkt = "msg "
		2914	. $self->{json_coder}->encode (
		2915	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2916	);
		2917
		2918	# try lzf for large packets
		2919	$pkt = "lzf " . Compress::LZF::compress $pkt
		2920	if 1024 <= length $pkt and $self->{can_lzf};
		2921
		2922	# split very large packets
		2923	if (8192 < length $pkt and $self->{can_lzf}) {
		2924	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2925	$pkt = "frag";
		2926	}
		2927
		2928	$self->send_packet ($pkt);
		2929	}
		2930
		2931	=item $client->ext_msg ($type, @msg)
		2932
		2933	Sends an ext event to the client.
		2934
		2935	=cut
		2936
		2937	sub cf::client::ext_msg($$@) {
		2938	my ($self, $type, @msg) = @_;
		2939
		2940	if ($self->extcmd == 2) {
		2941	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2942	} elsif ($self->extcmd == 1) { # TODO: remove
		2943	push @msg, msgtype => "event_$type";
		2944	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2945	}
		2946	}
		2947
		2948	=item $client->ext_reply ($msgid, @msg)
		2949
		2950	Sends an ext reply to the client.
		2951
		2952	=cut
		2953
		2954	sub cf::client::ext_reply($$@) {
		2955	my ($self, $id, @msg) = @_;
		2956
		2957	if ($self->extcmd == 2) {
		2958	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2959	} elsif ($self->extcmd == 1) {
		2960	#TODO: version 1, remove
		2961	unshift @msg, msgtype => "reply", msgid => $id;
		2962	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2963	}
		2964	}
1970		2965
1971	=item $success = $client->query ($flags, "text", \&cb)	2966	=item $success = $client->query ($flags, "text", \&cb)
1972		2967
1973	Queues a query to the client, calling the given callback with	2968	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>,	2969	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>.	2970	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1976		2971
1977	Queries can fail, so check the return code. Or don't, as queries will become	2972	Queries can fail, so check the return code. Or don't, as queries will
1978	reliable at some point in the future.	2973	become reliable at some point in the future.
1979		2974
1980	=cut	2975	=cut
1981		2976
1982	sub cf::client::query {	2977	sub cf::client::query {
1983	my ($self, $flags, $text, $cb) = @_;	2978	my ($self, $flags, $text, $cb) = @_;
…		…
1991	utf8::encode $text;	2986	utf8::encode $text;
1992	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2987	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1993		2988
1994	$self->send_packet ($self->{query_queue}[0][0])	2989	$self->send_packet ($self->{query_queue}[0][0])
1995	if @{ $self->{query_queue} } == 1;	2990	if @{ $self->{query_queue} } == 1;
		2991
		2992	1
1996	}	2993	}
1997		2994
1998	cf::client->attach (	2995	cf::client->attach (
		2996	on_connect => sub {
		2997	my ($ns) = @_;
		2998
		2999	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3000	},
1999	on_reply => sub {	3001	on_reply => sub {
2000	my ($ns, $msg) = @_;	3002	my ($ns, $msg) = @_;
2001		3003
2002	# this weird shuffling is so that direct followup queries	3004	# this weird shuffling is so that direct followup queries
2003	# get handled first	3005	# get handled first
2004	my $queue = delete $ns->{query_queue}	3006	my $queue = delete $ns->{query_queue}
2005	or return; # be conservative, not sure how that can happen, but we saw a crash here	3007	or return; # be conservative, not sure how that can happen, but we saw a crash here
2006		3008
2007	(shift @$queue)->[1]->($msg);	3009	(shift @$queue)->[1]->($msg);
		3010	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2008		3011
2009	push @{ $ns->{query_queue} }, @$queue;	3012	push @{ $ns->{query_queue} }, @$queue;
2010		3013
2011	if (@{ $ns->{query_queue} } == @$queue) {	3014	if (@{ $ns->{query_queue} } == @$queue) {
2012	if (@$queue) {	3015	if (@$queue) {
…		…
2014	} else {	3017	} else {
2015	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2016	}	3019	}
2017	}	3020	}
2018	},	3021	},
		3022	on_exticmd => sub {
		3023	my ($ns, $buf) = @_;
		3024
		3025	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3026
		3027	if (ref $msg) {
		3028	my ($type, $reply, @payload) =
		3029	"ARRAY" eq ref $msg
		3030	? @$msg
		3031	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3032
		3033	my @reply;
		3034
		3035	if (my $cb = $EXTICMD{$type}) {
		3036	@reply = $cb->($ns, @payload);
		3037	}
		3038
		3039	$ns->ext_reply ($reply, @reply)
		3040	if $reply;
		3041
		3042	} else {
		3043	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3044	}
		3045
		3046	cf::override;
		3047	},
2019	);	3048	);
2020		3049
2021	=item $client->async (\&cb)	3050	=item $client->async (\&cb)
2022		3051
2023	Create a new coroutine, running the specified callback. The coroutine will	3052	Create a new coroutine, running the specified callback. The coroutine will
…		…
2064	our $safe = new Safe "safe";	3093	our $safe = new Safe "safe";
2065	our $safe_hole = new Safe::Hole;	3094	our $safe_hole = new Safe::Hole;
2066		3095
2067	$SIG{FPE} = 'IGNORE';	3096	$SIG{FPE} = 'IGNORE';
2068		3097
2069	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3098	$safe->permit_only (Opcode::opset qw(
		3099	:base_core :base_mem :base_orig :base_math
		3100	grepstart grepwhile mapstart mapwhile
		3101	sort time
		3102	));
2070		3103
2071	# here we export the classes and methods available to script code	3104	# here we export the classes and methods available to script code
2072		3105
2073	=pod	3106	=pod
2074		3107
2075	The following fucntions and emthods are available within a safe environment:	3108	The following functions and methods are available within a safe environment:
2076		3109
2077	cf::object contr pay_amount pay_player map	3110	cf::object
		3111	contr pay_amount pay_player map x y force_find force_add destroy
		3112	insert remove name archname title slaying race decrease split
		3113	value
		3114
2078	cf::object::player player	3115	cf::object::player
2079	cf::player peaceful	3116	player
2080	cf::map trigger	3117
		3118	cf::player
		3119	peaceful
		3120
		3121	cf::map
		3122	trigger
2081		3123
2082	=cut	3124	=cut
2083		3125
2084	for (	3126	for (
2085	["cf::object" => qw(contr pay_amount pay_player map)],	3127	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3128	insert remove inv nrof name archname title slaying race
		3129	decrease split destroy change_exp value msg lore send_msg)],
2086	["cf::object::player" => qw(player)],	3130	["cf::object::player" => qw(player)],
2087	["cf::player" => qw(peaceful)],	3131	["cf::player" => qw(peaceful send_msg)],
2088	["cf::map" => qw(trigger)],	3132	["cf::map" => qw(trigger)],
2089	) {	3133	) {
2090	no strict 'refs';	3134	no strict 'refs';
2091	my ($pkg, @funs) = @$_;	3135	my ($pkg, @funs) = @$_;
2092	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3136	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2109	my ($code, %vars) = @_;	3153	my ($code, %vars) = @_;
2110		3154
2111	my $qcode = $code;	3155	my $qcode = $code;
2112	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3156	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2113	$qcode =~ s/\n/\\n/g;	3157	$qcode =~ s/\n/\\n/g;
		3158
		3159	%vars = (_dummy => 0) unless %vars;
2114		3160
2115	local $_;	3161	local $_;
2116	local @safe::cf::_safe_eval_args = values %vars;	3162	local @safe::cf::_safe_eval_args = values %vars;
2117		3163
2118	my $eval =	3164	my $eval =
…		…
2161	=back	3207	=back
2162		3208
2163	=cut	3209	=cut
2164		3210
2165	#############################################################################	3211	#############################################################################
		3212	# the server's init and main functions
2166		3213
2167	=head2 EXTENSION DATABASE SUPPORT	3214	sub load_facedata($) {
		3215	my ($path) = @_;
2168		3216
2169	Crossfire maintains a very simple database for extension use. It can	3217	# HACK to clear player env face cache, we need some signal framework
2170	currently store anything that can be serialised using Storable, which	3218	# for this (global event?)
2171	excludes objects.	3219	%ext::player_env::MUSIC_FACE_CACHE = ();
2172		3220
2173	The parameter C<$family> should best start with the name of the extension	3221	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2174	using it, it should be unique.
2175		3222
2176	=over 4	3223	warn "loading facedata from $path\n";
2177		3224
2178	=item $hashref = cf::db_get $family	3225	my $facedata;
		3226	0 < aio_load $path, $facedata
		3227	or die "$path: $!";
2179		3228
2180	Return a hashref for use by the extension C<$family>, which can be	3229	$facedata = Coro::Storable::thaw $facedata;
2181	modified. After modifications, you have to call C<cf::db_dirty> or
2182	C<cf::db_sync>.
2183		3230
2184	=item $value = cf::db_get $family => $key	3231	$facedata->{version} == 2
		3232	or cf::cleanup "$path: version mismatch, cannot proceed.";
2185		3233
2186	Returns a single value from the database	3234	# patch in the exptable
2187		3235	$facedata->{resource}{"res/exp_table"} = {
2188	=item cf::db_put $family => $hashref	3236	type => FT_RSRC,
2189		3237	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2190	Stores the given family hashref into the database. Updates are delayed, if
2191	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2192
2193	=item cf::db_put $family => $key => $value
2194
2195	Stores the given C<$value> in the family hash. Updates are delayed, if you
2196	want the data to be synced to disk immediately, use C<cf::db_sync>.
2197
2198	=item cf::db_dirty
2199
2200	Marks the database as dirty, to be updated at a later time.
2201
2202	=item cf::db_sync
2203
2204	Immediately write the database to disk I<if it is dirty>.
2205
2206	=cut
2207
2208	our $DB;
2209
2210	{
2211	my $path = cf::localdir . "/database.pst";
2212
2213	sub db_load() {
2214	$DB = stat $path ? Storable::retrieve $path : { };
2215	}	3238	};
		3239	cf::cede_to_tick;
2216		3240
2217	my $pid;
2218
2219	sub db_save() {
2220	waitpid $pid, 0 if $pid;
2221	if (0 == ($pid = fork)) {
2222	$DB->{_meta}{version} = 1;
2223	Storable::nstore $DB, "$path~";
2224	rename "$path~", $path;
2225	cf::_exit 0 if defined $pid;
2226	}
2227	}	3241	{
		3242	my $faces = $facedata->{faceinfo};
2228		3243
2229	my $dirty;	3244	while (my ($face, $info) = each %$faces) {
		3245	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2230		3246
2231	sub db_sync() {	3247	cf::face::set_visibility $idx, $info->{visibility};
2232	db_save if $dirty;	3248	cf::face::set_magicmap $idx, $info->{magicmap};
2233	undef $dirty;	3249	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2234	}	3250	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2235		3251
2236	my $idle = Event->idle (	3252	cf::cede_to_tick;
2237	reentrant => 0,
2238	min => 10,
2239	max => 20,
2240	repeat => 0,
2241	data => WF_AUTOCANCEL,
2242	cb => \&db_sync,
2243	);
2244
2245	sub db_dirty() {
2246	$dirty = 1;
2247	$idle->start;
2248	}
2249
2250	sub db_get($;$) {
2251	@_ >= 2
2252	? $DB->{$_[0]}{$_[1]}
2253	: ($DB->{$_[0]} ||= { })
2254	}
2255
2256	sub db_put($$;$) {
2257	if (@_ >= 3) {
2258	$DB->{$_[0]}{$_[1]} = $_[2];
2259	} else {
2260	$DB->{$_[0]} = $_[1];
2261	}
2262	db_dirty;
2263	}
2264
2265	cf::global->attach (
2266	prio => 10000,
2267	on_cleanup => sub {
2268	db_sync;
2269	},	3253	}
2270	);
2271	}
2272		3254
2273	#############################################################################	3255	while (my ($face, $info) = each %$faces) {
2274	# the server's main()	3256	next unless $info->{smooth};
2275		3257
2276	sub cfg_load {	3258	my $idx = cf::face::find $face
		3259	or next;
		3260
		3261	if (my $smooth = cf::face::find $info->{smooth}) {
		3262	cf::face::set_smooth $idx, $smooth;
		3263	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3264	} else {
		3265	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3266	}
		3267
		3268	cf::cede_to_tick;
		3269	}
		3270	}
		3271
		3272	{
		3273	my $anims = $facedata->{animinfo};
		3274
		3275	while (my ($anim, $info) = each %$anims) {
		3276	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3277	cf::cede_to_tick;
		3278	}
		3279
		3280	cf::anim::invalidate_all; # d'oh
		3281	}
		3282
		3283	{
		3284	# TODO: for gcfclient pleasure, we should give resources
		3285	# that gcfclient doesn't grok a >10000 face index.
		3286	my $res = $facedata->{resource};
		3287
		3288	while (my ($name, $info) = each %$res) {
		3289	if (defined $info->{type}) {
		3290	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3291	my $data;
		3292
		3293	if ($info->{type} & 1) {
		3294	# prepend meta info
		3295
		3296	my $meta = $enc->encode ({
		3297	name => $name,
		3298	%{ $info->{meta} || {} },
		3299	});
		3300
		3301	$data = pack "(w/a*)*", $meta, $info->{data};
		3302	} else {
		3303	$data = $info->{data};
		3304	}
		3305
		3306	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3307	cf::face::set_type $idx, $info->{type};
		3308	} else {
		3309	$RESOURCE{$name} = $info;
		3310	}
		3311
		3312	cf::cede_to_tick;
		3313	}
		3314	}
		3315
		3316	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3317
		3318	1
		3319	}
		3320
		3321	cf::global->attach (on_resource_update => sub {
		3322	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3323	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3324
		3325	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3326	my $sound = $soundconf->{compat}[$_]
		3327	or next;
		3328
		3329	my $face = cf::face::find "sound/$sound->[1]";
		3330	cf::sound::set $sound->[0] => $face;
		3331	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3332	}
		3333
		3334	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3335	my $face = cf::face::find "sound/$v";
		3336	cf::sound::set $k => $face;
		3337	}
		3338	}
		3339	});
		3340
		3341	register_exticmd fx_want => sub {
		3342	my ($ns, $want) = @_;
		3343
		3344	while (my ($k, $v) = each %$want) {
		3345	$ns->fx_want ($k, $v);
		3346	}
		3347	};
		3348
		3349	sub load_resource_file($) {
		3350	my $guard = lock_acquire "load_resource_file";
		3351
		3352	my $status = load_resource_file_ $_[0];
		3353	get_slot 0.1, 100;
		3354	cf::arch::commit_load;
		3355
		3356	$status
		3357	}
		3358
		3359	sub reload_regions {
		3360	# HACK to clear player env face cache, we need some signal framework
		3361	# for this (global event?)
		3362	%ext::player_env::MUSIC_FACE_CACHE = ();
		3363
		3364	load_resource_file "$MAPDIR/regions"
		3365	or die "unable to load regions file\n";
		3366
		3367	for (cf::region::list) {
		3368	$_->{match} = qr/$_->{match}/
		3369	if exists $_->{match};
		3370	}
		3371	}
		3372
		3373	sub reload_facedata {
		3374	load_facedata "$DATADIR/facedata"
		3375	or die "unable to load facedata\n";
		3376	}
		3377
		3378	sub reload_archetypes {
		3379	load_resource_file "$DATADIR/archetypes"
		3380	or die "unable to load archetypes\n";
		3381	}
		3382
		3383	sub reload_treasures {
		3384	load_resource_file "$DATADIR/treasures"
		3385	or die "unable to load treasurelists\n";
		3386	}
		3387
		3388	sub reload_resources {
		3389	warn "reloading resource files...\n";
		3390
		3391	reload_facedata;
		3392	reload_archetypes;
		3393	reload_regions;
		3394	reload_treasures;
		3395
		3396	warn "finished reloading resource files\n";
		3397	}
		3398
		3399	sub reload_config {
		3400	warn "reloading config file...\n";
		3401
2277	open my $fh, "<:utf8", cf::confdir . "/config"	3402	open my $fh, "<:utf8", "$CONFDIR/config"
2278	or return;	3403	or return;
2279		3404
2280	local $/;	3405	local $/;
2281	*CFG = YAML::Syck::Load <$fh>;	3406	*CFG = YAML::XS::Load scalar <$fh>;
2282		3407
2283	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3408	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2284		3409
2285	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3410	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2286	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3411	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3415	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2291	and die "WARNING: m(un)lockall failed: $!\n";	3416	and die "WARNING: m(un)lockall failed: $!\n";
2292	};	3417	};
2293	warn $@ if $@;	3418	warn $@ if $@;
2294	}	3419	}
		3420
		3421	warn "finished reloading resource files\n";
		3422	}
		3423
		3424	sub pidfile() {
		3425	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3426	or die "$PIDFILE: $!";
		3427	flock $fh, &Fcntl::LOCK_EX
		3428	or die "$PIDFILE: flock: $!";
		3429	$fh
		3430	}
		3431
		3432	# make sure only one server instance is running at any one time
		3433	sub atomic {
		3434	my $fh = pidfile;
		3435
		3436	my $pid = <$fh>;
		3437	kill 9, $pid if $pid > 0;
		3438
		3439	seek $fh, 0, 0;
		3440	print $fh $$;
		3441	}
		3442
		3443	sub main_loop {
		3444	warn "EV::loop starting\n";
		3445	if (1) {
		3446	EV::loop;
		3447	}
		3448	warn "EV::loop returned\n";
		3449	goto &main_loop unless $REALLY_UNLOOP;
2295	}	3450	}
2296		3451
2297	sub main {	3452	sub main {
		3453	cf::init_globals; # initialise logging
		3454
		3455	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3456	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3457	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3458	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3459
		3460	cf::init_experience;
		3461	cf::init_anim;
		3462	cf::init_attackmess;
		3463	cf::init_dynamic;
		3464
		3465	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3466
2298	# we must not ever block the main coroutine	3467	# we must not ever block the main coroutine
2299	local $Coro::idle = sub {	3468	local $Coro::idle = sub {
2300	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3469	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2301	(async {	3470	(async {
2302	Event::one_event;	3471	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3472	EV::loop EV::LOOP_ONESHOT;
2303	})->prio (Coro::PRIO_MAX);	3473	})->prio (Coro::PRIO_MAX);
2304	};	3474	};
2305		3475
2306	cfg_load;	3476	evthread_start IO::AIO::poll_fileno;
2307	db_load;	3477
		3478	cf::sync_job {
		3479	reload_resources;
		3480	reload_config;
		3481	db_init;
		3482
		3483	cf::load_settings;
		3484	cf::load_materials;
		3485	cf::init_uuid;
		3486	cf::init_signals;
		3487	cf::init_commands;
		3488	cf::init_skills;
		3489
		3490	cf::init_beforeplay;
		3491
		3492	atomic;
		3493
2308	load_extensions;	3494	load_extensions;
2309		3495
2310	$TICK_WATCHER->start;	3496	utime time, time, $RUNTIMEFILE;
2311	Event::loop;	3497
		3498	# no (long-running) fork's whatsoever before this point(!)
		3499	use POSIX ();
		3500	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3501
		3502	(pop @POST_INIT)->(0) while @POST_INIT;
		3503	};
		3504
		3505	main_loop;
2312	}	3506	}
2313		3507
2314	#############################################################################	3508	#############################################################################
2315	# initialisation and cleanup	3509	# initialisation and cleanup
2316		3510
2317	# install some emergency cleanup handlers	3511	# install some emergency cleanup handlers
2318	BEGIN {	3512	BEGIN {
		3513	our %SIGWATCHER = ();
2319	for my $signal (qw(INT HUP TERM)) {	3514	for my $signal (qw(INT HUP TERM)) {
2320	Event->signal (	3515	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2321	reentrant => 0,
2322	data => WF_AUTOCANCEL,
2323	signal => $signal,
2324	prio => 0,
2325	cb => sub {
2326	cf::cleanup "SIG$signal";	3516	cf::cleanup "SIG$signal";
2327	},
2328	);	3517	};
		3518	}
		3519	}
		3520
		3521	sub write_runtime_sync {
		3522	# first touch the runtime file to show we are still running:
		3523	# the fsync below can take a very very long time.
		3524
		3525	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3526
		3527	my $guard = cf::lock_acquire "write_runtime";
		3528
		3529	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3530	or return;
		3531
		3532	my $value = $cf::RUNTIME + 90 + 10;
		3533	# 10 is the runtime save interval, for a monotonic clock
		3534	# 60 allows for the watchdog to kill the server.
		3535
		3536	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3537	and return;
		3538
		3539	# always fsync - this file is important
		3540	aio_fsync $fh
		3541	and return;
		3542
		3543	# touch it again to show we are up-to-date
		3544	aio_utime $fh, undef, undef;
		3545
		3546	close $fh
		3547	or return;
		3548
		3549	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3550	and return;
		3551
		3552	warn "runtime file written.\n";
		3553
2329	}	3554	1
		3555	}
		3556
		3557	our $uuid_lock;
		3558	our $uuid_skip;
		3559
		3560	sub write_uuid_sync($) {
		3561	$uuid_skip ||= $_[0];
		3562
		3563	return if $uuid_lock;
		3564	local $uuid_lock = 1;
		3565
		3566	my $uuid = "$LOCALDIR/uuid";
		3567
		3568	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3569	or return;
		3570
		3571	my $value = uuid_seq uuid_cur;
		3572
		3573	unless ($value) {
		3574	warn "cowardly refusing to write zero uuid value!\n";
		3575	return;
		3576	}
		3577
		3578	my $value = uuid_str $value + $uuid_skip;
		3579	$uuid_skip = 0;
		3580
		3581	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3582	and return;
		3583
		3584	# always fsync - this file is important
		3585	aio_fsync $fh
		3586	and return;
		3587
		3588	close $fh
		3589	or return;
		3590
		3591	aio_rename "$uuid~", $uuid
		3592	and return;
		3593
		3594	warn "uuid file written ($value).\n";
		3595
		3596	1
		3597
		3598	}
		3599
		3600	sub write_uuid($$) {
		3601	my ($skip, $sync) = @_;
		3602
		3603	$sync ? write_uuid_sync $skip
		3604	: async { write_uuid_sync $skip };
2330	}	3605	}
2331		3606
2332	sub emergency_save() {	3607	sub emergency_save() {
2333	my $freeze_guard = cf::freeze_mainloop;	3608	my $freeze_guard = cf::freeze_mainloop;
2334		3609
2335	warn "enter emergency perl save\n";	3610	warn "emergency_perl_save: enter\n";
2336		3611
2337	cf::sync_job {	3612	cf::sync_job {
		3613	# this is a trade-off: we want to be very quick here, so
		3614	# save all maps without fsync, and later call a global sync
		3615	# (which in turn might be very very slow)
		3616	local $USE_FSYNC = 0;
		3617
2338	# use a peculiar iteration method to avoid tripping on perl	3618	# use a peculiar iteration method to avoid tripping on perl
2339	# refcount bugs in for. also avoids problems with players	3619	# refcount bugs in for. also avoids problems with players
2340	# and maps saved/destroyed asynchronously.	3620	# and maps saved/destroyed asynchronously.
2341	warn "begin emergency player save\n";	3621	warn "emergency_perl_save: begin player save\n";
2342	for my $login (keys %cf::PLAYER) {	3622	for my $login (keys %cf::PLAYER) {
2343	my $pl = $cf::PLAYER{$login} or next;	3623	my $pl = $cf::PLAYER{$login} or next;
2344	$pl->valid or next;	3624	$pl->valid or next;
		3625	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2345	$pl->save;	3626	$pl->save;
2346	}	3627	}
2347	warn "end emergency player save\n";	3628	warn "emergency_perl_save: end player save\n";
2348		3629
2349	warn "begin emergency map save\n";	3630	warn "emergency_perl_save: begin map save\n";
2350	for my $path (keys %cf::MAP) {	3631	for my $path (keys %cf::MAP) {
2351	my $map = $cf::MAP{$path} or next;	3632	my $map = $cf::MAP{$path} or next;
2352	$map->valid or next;	3633	$map->valid or next;
2353	$map->save;	3634	$map->save;
2354	}	3635	}
2355	warn "end emergency map save\n";	3636	warn "emergency_perl_save: end map save\n";
		3637
		3638	warn "emergency_perl_save: begin database checkpoint\n";
		3639	BDB::db_env_txn_checkpoint $DB_ENV;
		3640	warn "emergency_perl_save: end database checkpoint\n";
		3641
		3642	warn "emergency_perl_save: begin write uuid\n";
		3643	write_uuid_sync 1;
		3644	warn "emergency_perl_save: end write uuid\n";
2356	};	3645	};
2357		3646
		3647	warn "emergency_perl_save: starting sync()\n";
		3648	IO::AIO::aio_sync sub {
		3649	warn "emergency_perl_save: finished sync()\n";
		3650	};
		3651
2358	warn "leave emergency perl save\n";	3652	warn "emergency_perl_save: leave\n";
2359	}	3653	}
2360		3654
		3655	sub post_cleanup {
		3656	my ($make_core) = @_;
		3657
		3658	warn Carp::longmess "post_cleanup backtrace"
		3659	if $make_core;
		3660
		3661	my $fh = pidfile;
		3662	unlink $PIDFILE if <$fh> == $$;
		3663	}
		3664
		3665	# a safer delete_package, copied from Symbol
		3666	sub clear_package($) {
		3667	my $pkg = shift;
		3668
		3669	# expand to full symbol table name if needed
		3670	unless ($pkg =~ /^main::.*::$/) {
		3671	$pkg = "main$pkg" if $pkg =~ /^::/;
		3672	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3673	$pkg .= '::' unless $pkg =~ /::$/;
		3674	}
		3675
		3676	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3677	my $stem_symtab = *{$stem}{HASH};
		3678
		3679	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3680	or return;
		3681
		3682	# clear all symbols
		3683	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3684	for my $name (keys %$leaf_symtab) {
		3685	_gv_clear *{"$pkg$name"};
		3686	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3687	}
		3688	warn "cleared package $pkg\n";#d#
		3689	}
		3690
2361	sub reload() {	3691	sub do_reload_perl() {
2362	# can/must only be called in main	3692	# can/must only be called in main
2363	if ($Coro::current != $Coro::main) {	3693	if ($Coro::current != $Coro::main) {
2364	warn "can only reload from main coroutine";	3694	warn "can only reload from main coroutine";
2365	return;	3695	return;
2366	}	3696	}
2367		3697
		3698	return if $RELOAD++;
		3699
		3700	my $t1 = EV::time;
		3701
		3702	while ($RELOAD) {
2368	warn "reloading...";	3703	warn "reloading...";
2369		3704
2370	warn "cancelling server ticker";	3705	warn "entering sync_job";
2371	$TICK_WATCHER->cancel;
2372		3706
		3707	cf::sync_job {
		3708	cf::write_runtime_sync; # external watchdog should not bark
2373	cf::emergency_save;	3709	cf::emergency_save;
		3710	cf::write_runtime_sync; # external watchdog should not bark
2374		3711
2375	eval {	3712	warn "syncing database to disk";
		3713	BDB::db_env_txn_checkpoint $DB_ENV;
		3714
2376	# if anything goes wrong in here, we should simply crash as we already saved	3715	# if anything goes wrong in here, we should simply crash as we already saved
2377		3716
2378	warn "syncing database to disk";
2379	cf::db_sync;
2380
2381	warn "cancelling all WF_AUTOCANCEL watchers";
2382	for (Event::all_watchers) {
2383	$_->cancel if $_->data & WF_AUTOCANCEL;
2384	}
2385
2386	warn "flushing outstanding aio requests";	3717	warn "flushing outstanding aio requests";
2387	for (;;) {	3718	while (IO::AIO::nreqs || BDB::nreqs) {
2388	IO::AIO::flush;	3719	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2389	Coro::cede;
2390	last unless IO::AIO::nreqs;
2391	warn "iterate...";
2392	}
2393
2394	warn "cancelling all extension coros";
2395	$_->cancel for values %EXT_CORO;
2396	%EXT_CORO = ();
2397
2398	warn "removing commands";
2399	%COMMAND = ();
2400
2401	warn "removing ext commands";
2402	%EXTCMD = ();
2403
2404	warn "unloading/nuking all extensions";
2405	for my $pkg (@EXTS) {
2406	warn "... unloading $pkg";
2407
2408	if (my $cb = $pkg->can ("unload")) {
2409	eval {
2410	$cb->($pkg);
2411	1
2412	} or warn "$pkg unloaded, but with errors: $@";
2413	}	3720	}
2414		3721
2415	warn "... nuking $pkg";	3722	warn "cancelling all extension coros";
2416	Symbol::delete_package $pkg;	3723	$_->cancel for values %EXT_CORO;
2417	}	3724	%EXT_CORO = ();
2418		3725
2419	warn "unloading all perl modules loaded from $LIBDIR";	3726	warn "removing commands";
2420	while (my ($k, $v) = each %INC) {	3727	%COMMAND = ();
2421	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2422		3728
		3729	warn "removing ext/exti commands";
		3730	%EXTCMD = ();
		3731	%EXTICMD = ();
		3732
		3733	warn "unloading/nuking all extensions";
		3734	for my $pkg (@EXTS) {
2423	warn "... unloading $k";	3735	warn "... unloading $pkg";
2424	delete $INC{$k};
2425		3736
2426	$k =~ s/\.pm$//;
2427	$k =~ s/\//::/g;
2428
2429	if (my $cb = $k->can ("unload_module")) {	3737	if (my $cb = $pkg->can ("unload")) {
		3738	eval {
2430	$cb->();	3739	$cb->($pkg);
		3740	1
		3741	} or warn "$pkg unloaded, but with errors: $@";
		3742	}
		3743
		3744	warn "... clearing $pkg";
		3745	clear_package $pkg;
2431	}	3746	}
2432		3747
2433	Symbol::delete_package $k;	3748	warn "unloading all perl modules loaded from $LIBDIR";
		3749	while (my ($k, $v) = each %INC) {
		3750	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3751
		3752	warn "... unloading $k";
		3753	delete $INC{$k};
		3754
		3755	$k =~ s/\.pm$//;
		3756	$k =~ s/\//::/g;
		3757
		3758	if (my $cb = $k->can ("unload_module")) {
		3759	$cb->();
		3760	}
		3761
		3762	clear_package $k;
2434	}	3763	}
2435		3764
2436	warn "getting rid of safe::, as good as possible";	3765	warn "getting rid of safe::, as good as possible";
2437	Symbol::delete_package "safe::$_"	3766	clear_package "safe::$_"
2438	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3767	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2439		3768
2440	warn "unloading cf.pm \"a bit\"";	3769	warn "unloading cf.pm \"a bit\"";
2441	delete $INC{"cf.pm"};	3770	delete $INC{"cf.pm"};
		3771	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2442		3772
2443	# don't, removes xs symbols, too,	3773	# don't, removes xs symbols, too,
2444	# and global variables created in xs	3774	# and global variables created in xs
2445	#Symbol::delete_package __PACKAGE__;	3775	#clear_package __PACKAGE__;
2446		3776
2447	warn "unload completed, starting to reload now";	3777	warn "unload completed, starting to reload now";
2448		3778
2449	warn "reloading cf.pm";	3779	warn "reloading cf.pm";
2450	require cf;	3780	require cf;
2451	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3781	cf::_connect_to_perl_1;
2452		3782
2453	warn "loading config and database again";	3783	warn "loading config and database again";
2454	cf::cfg_load;	3784	cf::reload_config;
2455	cf::db_load;
2456		3785
2457	warn "loading extensions";	3786	warn "loading extensions";
2458	cf::load_extensions;	3787	cf::load_extensions;
2459		3788
		3789	if ($REATTACH_ON_RELOAD) {
2460	warn "reattaching attachments to objects/players";	3790	warn "reattaching attachments to objects/players";
2461	_global_reattach;	3791	_global_reattach; # objects, sockets
2462	warn "reattaching attachments to maps";	3792	warn "reattaching attachments to maps";
2463	reattach $_ for values %MAP;	3793	reattach $_ for values %MAP;
		3794	warn "reattaching attachments to players";
		3795	reattach $_ for values %PLAYER;
		3796	}
2464		3797
2465	warn "restarting server ticker";	3798	warn "running post_init jobs";
		3799	(pop @POST_INIT)->(1) while @POST_INIT;
2466		3800
2467	$TICK_WATCHER->start;	3801	warn "leaving sync_job";
		3802
		3803	1
		3804	} or do {
		3805	warn $@;
		3806	cf::cleanup "error while reloading, exiting.";
		3807	};
		3808
		3809	warn "reloaded";
		3810	--$RELOAD;
		3811	}
		3812
		3813	$t1 = EV::time - $t1;
		3814	warn "reload completed in ${t1}s\n";
		3815	};
		3816
		3817	our $RELOAD_WATCHER; # used only during reload
		3818
		3819	sub reload_perl() {
		3820	# doing reload synchronously and two reloads happen back-to-back,
		3821	# coro crashes during coro_state_free->destroy here.
		3822
		3823	$RELOAD_WATCHER ||= cf::async {
		3824	Coro::AIO::aio_wait cache_extensions;
		3825
		3826	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3827	do_reload_perl;
		3828	undef $RELOAD_WATCHER;
		3829	};
2468	};	3830	};
2469		3831	}
2470	if ($@) {
2471	warn $@;
2472	warn "error while reloading, exiting.";
2473	exit 1;
2474	}
2475
2476	warn "reloaded";
2477	};
2478
2479	our $RELOAD_WATCHER; # used only during reload
2480		3832
2481	register_command "reload" => sub {	3833	register_command "reload" => sub {
2482	my ($who, $arg) = @_;	3834	my ($who, $arg) = @_;
2483		3835
2484	if ($who->flag (FLAG_WIZ)) {	3836	if ($who->flag (FLAG_WIZ)) {
2485	$who->message ("reloading server.");	3837	$who->message ("reloading server.");
2486		3838	async {
2487	# doing reload synchronously and two reloads happen back-to-back,	3839	$Coro::current->{desc} = "perl_reload";
2488	# coro crashes during coro_state_free->destroy here.
2489
2490	$RELOAD_WATCHER ||= Event->timer (
2491	reentrant => 0,
2492	after => 0,
2493	data => WF_AUTOCANCEL,
2494	cb => sub {
2495	reload;	3840	reload_perl;
2496	undef $RELOAD_WATCHER;
2497	},
2498	);	3841	};
2499	}	3842	}
2500	};	3843	};
2501		3844
2502	unshift @INC, $LIBDIR;	3845	unshift @INC, $LIBDIR;
2503		3846
2504	my $bug_warning = 0;	3847	my $bug_warning = 0;
2505		3848
2506	$TICK_WATCHER = Event->timer (	3849	our @WAIT_FOR_TICK;
2507	reentrant => 0,	3850	our @WAIT_FOR_TICK_BEGIN;
2508	parked => 1,	3851
2509	prio => 0,	3852	sub wait_for_tick {
2510	at => $NEXT_TICK || $TICK,	3853	return if tick_inhibit || $Coro::current == $Coro::main;
2511	data => WF_AUTOCANCEL,	3854
2512	cb => sub {	3855	my $signal = new Coro::Signal;
		3856	push @WAIT_FOR_TICK, $signal;
		3857	$signal->wait;
		3858	}
		3859
		3860	sub wait_for_tick_begin {
		3861	return if tick_inhibit || $Coro::current == $Coro::main;
		3862
		3863	my $signal = new Coro::Signal;
		3864	push @WAIT_FOR_TICK_BEGIN, $signal;
		3865	$signal->wait;
		3866	}
		3867
		3868	sub tick {
2513	if ($Coro::current != $Coro::main) {	3869	if ($Coro::current != $Coro::main) {
2514	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3870	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2515	unless ++$bug_warning > 10;	3871	unless ++$bug_warning > 10;
2516	return;	3872	return;
2517	}	3873	}
2518		3874
2519	$NOW = Event::time;
2520
2521	cf::server_tick; # one server iteration	3875	cf::server_tick; # one server iteration
2522	$RUNTIME += $TICK;
2523	$NEXT_TICK += $TICK;
2524		3876
2525	$WAIT_FOR_TICK->broadcast;	3877	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2526	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3878	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2527		3879	Coro::async_pool {
2528	Event::sweep;	3880	$Coro::current->{desc} = "runtime saver";
2529	Coro::cede_notself;
2530
2531	# my $AFTER = Event::time;
2532	# warn $AFTER - $NOW;#d#
2533
2534	# if we are delayed by four ticks or more, skip them all
2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2536
2537	$TICK_WATCHER->at ($NEXT_TICK);
2538	$TICK_WATCHER->start;
2539	},
2540	);
2541
2542	IO::AIO::max_poll_time $TICK * 0.1;
2543
2544	undef $Coro::AIO::WATCHER;
2545	$AIO_POLL_WATCHER = Event->io (
2546	reentrant => 0,
2547	fd => IO::AIO::poll_fileno,
2548	poll => 'r',
2549	prio => 6,
2550	data => WF_AUTOCANCEL,
2551	cb => \&IO::AIO::poll_cb,
2552	);
2553
2554	$WRITE_RUNTIME_WATCHER = Event->timer (
2555	reentrant => 0,
2556	data => WF_AUTOCANCEL,
2557	after => 1,
2558	interval => 10,
2559	prio => 6, # keep it lowest so it acts like a watchdog
2560	cb => Coro::unblock_sub {
2561	write_runtime	3881	write_runtime_sync
2562	or warn "ERROR: unable to write runtime file: $!";	3882	or warn "ERROR: unable to write runtime file: $!";
		3883	};
2563	},	3884	}
2564	);	3885
		3886	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3887	$sig->send;
		3888	}
		3889	while (my $sig = shift @WAIT_FOR_TICK) {
		3890	$sig->send;
		3891	}
		3892
		3893	$LOAD = ($NOW - $TICK_START) / $TICK;
		3894	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3895
		3896	if (0) {
		3897	if ($NEXT_TICK) {
		3898	my $jitter = $TICK_START - $NEXT_TICK;
		3899	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3900	warn "jitter $JITTER\n";#d#
		3901	}
		3902	}
		3903	}
		3904
		3905	{
		3906	# configure BDB
		3907
		3908	BDB::min_parallel 8;
		3909	BDB::max_poll_reqs $TICK * 0.1;
		3910	$AnyEvent::BDB::WATCHER->priority (1);
		3911
		3912	unless ($DB_ENV) {
		3913	$DB_ENV = BDB::db_env_create;
		3914	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3915	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3916	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3917	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3918	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3919
		3920	cf::sync_job {
		3921	eval {
		3922	BDB::db_env_open
		3923	$DB_ENV,
		3924	$BDBDIR,
		3925	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3926	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3927	0666;
		3928
		3929	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3930	};
		3931
		3932	cf::cleanup "db_env_open(db): $@" if $@;
		3933	};
		3934	}
		3935
		3936	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3937	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3938	};
		3939	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3940	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3941	};
		3942	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3943	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3944	};
		3945	}
		3946
		3947	{
		3948	# configure IO::AIO
		3949
		3950	IO::AIO::min_parallel 8;
		3951	IO::AIO::max_poll_time $TICK * 0.1;
		3952	undef $AnyEvent::AIO::WATCHER;
		3953	}
		3954
		3955	my $_log_backtrace;
		3956
		3957	sub _log_backtrace {
		3958	my ($msg, @addr) = @_;
		3959
		3960	$msg =~ s/\n//;
		3961
		3962	# limit the # of concurrent backtraces
		3963	if ($_log_backtrace < 2) {
		3964	++$_log_backtrace;
		3965	my $perl_bt = Carp::longmess $msg;
		3966	async {
		3967	$Coro::current->{desc} = "abt $msg";
		3968
		3969	my @bt = fork_call {
		3970	@addr = map { sprintf "%x", $_ } @addr;
		3971	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3972	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3973	or die "addr2line: $!";
		3974
		3975	my @funcs;
		3976	my @res = <$fh>;
		3977	chomp for @res;
		3978	while (@res) {
		3979	my ($func, $line) = splice @res, 0, 2, ();
		3980	push @funcs, "[$func] $line";
		3981	}
		3982
		3983	@funcs
		3984	};
		3985
		3986	LOG llevInfo, "[ABT] $perl_bt\n";
		3987	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3988	LOG llevInfo, "[ABT] $_\n" for @bt;
		3989	--$_log_backtrace;
		3990	};
		3991	} else {
		3992	LOG llevInfo, "[ABT] $msg\n";
		3993	LOG llevInfo, "[ABT] [suppressed]\n";
		3994	}
		3995	}
		3996
		3997	# load additional modules
		3998	require "cf/$_.pm" for @EXTRA_MODULES;
		3999	cf::_connect_to_perl_2;
2565		4000
2566	END { cf::emergency_save }	4001	END { cf::emergency_save }
2567		4002
2568	1	4003	1
2569		4004

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