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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.220 by root, Sat Feb 17 23:54:35 2007 UTC vs.
Revision 1.489 by root, Fri Oct 23 03:08:35 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.5 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
20	use BDB ();	55	use BDB ();
21	use Data::Dumper;	56	use Data::Dumper;
22	use Digest::MD5;	57	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
27	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
28		64
		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";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		77
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		82
40	our %COMMAND = ();	83	our %COMMAND = ();
41	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
42		85
43	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
47		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	93	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
50		96
51	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	98	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	115	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
61		124
62	our %CFG;	125	our %CFG;
63		126
64	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
66		130
67	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		134
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $REALLY_UNLOOP; # never set to true, please :)
		147
79	binmode STDOUT;	148	binmode STDOUT;
80	binmode STDERR;	149	binmode STDERR;
81		150
82	# read virtual server time, if available	151	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
87	}	156	}
88		157
89	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	159
91	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		162
96	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
97		164
98	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::"} };
99		177
100	#############################################################################	178	#############################################################################
101		179
102	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
103		181
…		…
110	=item $cf::RUNTIME	188	=item $cf::RUNTIME
111		189
112	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
113	every server tick.	191	every server tick.
114		192
115	=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
116		196
117	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		201
120	=item $cf::NOW	202	=item $cf::NOW
121		203
122	The time of the last (current) server tick.	204	The time of the last (current) server tick.
123		205
124	=item $cf::TICK	206	=item $cf::TICK
125		207
126	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
127		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
128	=item %cf::CFG	220	=item %cf::CFG
129		221
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	223	from wherever your confdir points to.
132		224
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		226
135	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
136	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
137	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.
138	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.
139		242
140	=back	243	=back
141		244
142	=cut	245	=cut
143		246
144	BEGIN {	247	$Coro::State::WARNHOOK = sub {
145	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	248	my $msg = join "", @_;
147	utf8::encode $msg;
148		249
149	$msg .= "\n"	250	$msg .= "\n"
150	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
151		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
152	LOG llevError, $msg;	255	LOG llevError, $msg;
153	};	256	};
154	}	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	};
155		271
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		279
163	# 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
164	# within the Safe compartment.	281	# within the Safe compartment.
165	for my $pkg (qw(	282	for my $pkg (qw(
166	cf::global cf::attachable	283	cf::global cf::attachable
167	cf::object cf::object::player	284	cf::object cf::object::player
168	cf::client cf::player	285	cf::client cf::player
169	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
170	cf::map cf::party cf::region	288	cf::party cf::region
171	)) {	289	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	291	}
175		292
176	$Event::DIED = sub {	293	$EV::DIED = sub {
177	warn "error in event callback: @_";	294	warn "error in event callback: @_";
178	};	295	};
		296
		297	#############################################################################
179		298
180	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
181		300
182	=over 4	301	=over 4
183		302
…		…
202	$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;
203	$d	322	$d
204	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
205	}	324	}
206		325
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
210		327
211	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
212		329
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
221		331
222	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
223		333
224	=cut	334	=cut
225		335
226	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
228	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;
229	}	353	}
230		354
231	=item cf::lock_wait $string	355	=item cf::lock_wait $string
232		356
233	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
234		358
235	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
236		360
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
240	returned.	364	returned.
241		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
242	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
243	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
244		371
245	=cut	372	=item $locked = cf::lock_active $string
246		373
247	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
248		379
249	sub lock_wait($) {	380	sub lock_wait($) {
250	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	382	}
258		383
259	sub lock_acquire($) {	384	sub lock_acquire($) {
260	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
261		387
262	# wait, to be sure we are not locked	388	sub lock_active($) {
263	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	390	}
272		391
273	sub freeze_mainloop {	392	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
275		394
276	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
278	};	456	}
279	$TICK_WATCHER->stop;	457	};
280	$guard	458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
281	}	471	}
282		472
283	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
284		474
285	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		480
291	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
292		482
293	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
294		484
295	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
298		489
299	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
302	fast or be very important.	493	fast or be very important.
…		…
305		496
306	sub sync_job(&) {	497	sub sync_job(&) {
307	my ($job) = @_;	498	my ($job) = @_;
308		499
309	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
310	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
312		505
313	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	507
315	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
316		509
317	my $busy = 1;	510	my $busy = 1;
318	my @res;	511	my @res;
319		512
320	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	515	@res = eval { $job->() };
322	warn $@ if $@;	516	warn $@ if $@;
323	undef $busy;	517	undef $busy;
324	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
325		519
326	while ($busy) {	520	while ($busy) {
327	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
328	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
329		531
330	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
331	} else {	533	} else {
332	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
333		535
…		…
353	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
354		556
355	$coro	557	$coro
356	}	558	}
357		559
358	sub write_runtime {	560	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		561
361	my $runtime = cf::localdir . "/runtime";	562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
362		566
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
364	or return;
365		568
366	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		571
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
371	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
372		575
373	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	577	reset_signals;
375	and return;	578	&$cb
		579	}, @args;
376		580
377	close $fh	581	wantarray ? @res : $res[-1]
378	or return;	582	}
379		583
380	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
381	and return;
382		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		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($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
383	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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 });
384	}	747	}
385		748
386	=back	749	=back
387		750
388	=cut	751	=cut
389		752
390	#############################################################################	753	#############################################################################
391		754
392	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
393		756
394	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
395	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")
396	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
397		760
398	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>
399	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
400	crossfire+).	763	Deliantra).
401		764
402	=over 4	765	=over 4
403		766
404	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
405		768
…		…
449	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
450		813
451	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
453		816
454	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
455	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.
456		819
457	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
458		821
459	=over 4	822	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
569		932
570	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		937
575	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	939	my $pkg = shift @arg;
577		940
578	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
608	}	971	}
609		972
610	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
611	} else {	974	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	976	}
614		977
615	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
616	}	979	}
617		980
…		…
619	if (ref $_[0]) {	982	if (ref $_[0]) {
620	_object_attach @_;	983	_object_attach @_;
621	} else {	984	} else {
622	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
623	}	986	}
		987	_recalc_want;
624	};	988	};
625		989
626	# all those should be optimised	990	# all those should be optimised
627	sub cf::attachable::detach {	991	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
632	reattach ($obj);	996	reattach ($obj);
633	} else {	997	} else {
634	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
635	}	999	}
		1000	_recalc_want;
636	};	1001	};
637		1002
638	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
640		1005
…		…
655	";	1020	";
656	die if $@;	1021	die if $@;
657	}	1022	}
658		1023
659	our $override;	1024	our $override;
660	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?
661		1026
662	sub override {	1027	sub override {
663	$override = 1;	1028	$override = 1;
664	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
665	}	1030	}
666		1031
667	sub do_invoke {	1032	sub do_invoke {
668	my $event = shift;	1033	my $event = shift;
669	my $callbacks = shift;	1034	my $callbacks = shift;
670		1035
671	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
672		1037
673	local $override;	1038	local $override;
674		1039
675	for (@$callbacks) {	1040	for (@$callbacks) {
676	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
685	}	1050	}
686		1051
687	0	1052	0
688	}	1053	}
689		1054
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1056
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1058
694	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
695		1060
696	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
697	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
698	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1064
700	=back	1065	=back
701		1066
702	=cut	1067	=cut
703		1068
704	#############################################################################	1069	#############################################################################
705	# 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, $ob2
		1112	}
706		1113
707	sub reattach {	1114	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1116	my ($obj) = @_;
710		1117
		1118	# no longer needed after getting rid of delete_package?
711	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
712		1120
713	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
714		1122
715	@$registry = ();	1123	@$registry = ();
716		1124
…		…
731	cf::attachable->attach (	1139	cf::attachable->attach (
732	prio => -1000000,	1140	prio => -1000000,
733	on_instantiate => sub {	1141	on_instantiate => sub {
734	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
735		1143
736	$data = from_json $data;	1144	$data = decode_json $data;
737		1145
738	for (@$data) {	1146	for (@$data) {
739	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
740		1148
741	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1165	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
759		1167
760	sync_job {	1168	sync_job {
761	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
764		1173
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1177	if ($cf::USE_FSYNC) {
		1178	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1179	aio_fsync $fh;
		1180	}
769	close $fh;	1181	aio_close $fh;
770		1182
771	if (@$objs) {	1183	if (@$objs) {
772	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) {
773	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1188	if ($cf::USE_FSYNC) {
		1189	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1190	aio_fsync $fh;
		1191	}
777	close $fh;	1192	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
779	}	1194	}
780	} else {	1195	} else {
781	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
782	}	1197	}
783		1198
784	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1203	} else {
786	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
787	}	1205	}
788	} else {	1206	} else {
789	aio_unlink $filename;	1207	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
791	}	1209	}
792	}	1210	};
793	}	1211	}
794		1212
795	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
797		1215
…		…
809	or return;	1227	or return;
810		1228
811	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
813	or return;	1231	or return;
		1232
814	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
815	}	1235	}
816		1236
		1237	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
819	return ($data, $av);	1241	($data, $av)
820	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
821		1249
822	#############################################################################	1250	#############################################################################
823	# command handling &c	1251	# command handling &c
824		1252
825	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1267	}
840		1268
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1270
843	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.
844		1276
845	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
846	called.	1278	called.
847		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
848	=cut	1291	=cut
849		1292
850	sub register_extcmd {	1293	sub register_extcmd {
851	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
852		1295
853	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
854	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
855		1306
856	cf::player->attach (	1307	cf::player->attach (
857	on_command => sub {	1308	on_command => sub {
858	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
859		1310
…		…
867	cf::override;	1318	cf::override;
868	},	1319	},
869	on_extcmd => sub {	1320	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
871		1322
872	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1324
874	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
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
880	} else {	1340	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1342	}
883		1343
884	cf::override;	1344	cf::override;
885	},	1345	},
886	);	1346	);
887		1347
		1348	# "readahead" all extensions
888	sub load_extension {	1349	sub cache_extensions {
889	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
890		1351
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1355	}
916	die $@;
917	}	1356	};
918		1357
919	push @EXTS, $pkg;	1358	$grp
920	}	1359	}
921		1360
922	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
923	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1366	next unless -r $path;
925	eval {	1367
926	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	$progress = 1;
927	1	1424	}
928	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
929	}	1430	};
930	}	1431	}
931		1432
932	#############################################################################	1433	#############################################################################
933		1434
		1435	=back
		1436
934	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
935		1438
936	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
937		1440
938	=cut	1441	=cut
939		1442
940	package cf::player;	1443	package cf::player;
941		1444
…		…
943		1446
944	=head3 cf::player	1447	=head3 cf::player
945		1448
946	=over 4	1449	=over 4
947		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
948	=item cf::player::find $login	1465	=item cf::player::find $login
949		1466
950	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
951		1468
952	=cut	1469	=cut
953		1470
954	sub playerdir($) {	1471	sub playerdir($) {
955	cf::localdir	1472	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1474	}
961		1475
962	sub path($) {	1476	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1478
965	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
966	}	1480	}
967		1481
968	sub find_active($) {	1482	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
973		1487
974	sub exists($) {	1488	sub exists($) {
975	my ($login) = @_;	1489	my ($login) = @_;
976		1490
977	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
979	}	1493	}
980		1494
981	sub find($) {	1495	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1497	my $login = $_[0];
984		1498
985	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
986		1500
987	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
988	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
989	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;
990	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
991	}	1518	}
992	}	1519	}
993	}	1520	}
994		1521
…		…
1003	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1004		1531
1005	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1007		1534
		1535	cf::get_slot 0.01;
		1536
1008	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1009	Coro::cede;	1538	cf::cede_to_tick;
1010	}	1539	}
1011		1540
1012	sub new($) {	1541	sub new($) {
1013	my ($login) = @_;	1542	my ($login) = @_;
1014		1543
…		…
1020	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1021		1550
1022	$self	1551	$self
1023	}	1552	}
1024		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
1025	=item $pl->quit_character	1564	=item $pl->quit_character
1026		1565
1027	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1029		1568
…		…
1033	my ($pl) = @_;	1572	my ($pl) = @_;
1034		1573
1035	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1036		1575
1037	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1038	$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
1039		1578
1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1041	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1043	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1044		1585
1045	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1046	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;	1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055		1596
1056	IO::AIO::aio_rmtree $temp;	1597	IO::AIO::aio_rmtree $temp;
1057	}	1598	}
1058		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;
		1612	}
		1613
1059	=item cf::player::list_logins	1614	=item cf::player::list_logins
1060		1615
1061	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
1062	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1063		1618
1064	=cut	1619	=cut
1065		1620
1066	sub list_logins {	1621	sub list_logins {
1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1068	or return [];	1623	or return [];
1069		1624
1070	my @logins;	1625	my @logins;
1071		1626
1072	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") {
1073	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1074	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1075	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1076		1637
1077	utf8::decode $login;	1638	utf8::decode $login;
1078	push @logins, $login;	1639	push @logins, $login;
1079	}	1640	}
1080		1641
…		…
1107	}	1668	}
1108		1669
1109	\@paths	1670	\@paths
1110	}	1671	}
1111		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1112	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1113		1678
1114	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1115		1680
1116	=cut	1681	=cut
1117		1682
1118	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1119	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1120		1685
1121	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1122
1123	$self->send ("ext " . cf::to_json \%msg);
1124	}	1687	}
1125		1688
1126	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	}
1127		1729
1128	=back	1730	=back
1129
1130		1731
1131	=head3 cf::map	1732	=head3 cf::map
1132		1733
1133	=over 4	1734	=over 4
1134		1735
…		…
1146	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1147	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1148		1749
1149	sub generate_random_map {	1750	sub generate_random_map {
1150	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
1151	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1152	$self->_create_random_map (	1756	$self->_create_random_map (
1153	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1154	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1155	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1189	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1190		1794
1191	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1192	local $self->{path};	1796	local $self->{path};
1193	local $self->{load_path};	1797	local $self->{load_path};
1194	local $self->{deny_save};
1195	local $self->{deny_reset};
1196		1798
1197	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1198	}	1800	}
1199		1801
1200	sub normalise {	1802	sub normalise {
…		…
1247	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1248	return $self;	1850	return $self;
1249	}	1851	}
1250	}	1852	}
1251		1853
1252	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1253	()	1855	()
1254	}	1856	}
1255		1857
1256	sub init {	1858	sub init {
1257	my ($self) = @_;	1859	my ($self) = @_;
…		…
1272		1874
1273	# the original (read-only) location	1875	# the original (read-only) location
1274	sub load_path {	1876	sub load_path {
1275	my ($self) = @_;	1877	my ($self) = @_;
1276		1878
1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1278	}	1880	}
1279		1881
1280	# the temporary/swap location	1882	# the temporary/swap location
1281	sub save_path {	1883	sub save_path {
1282	my ($self) = @_;	1884	my ($self) = @_;
1283		1885
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1286	}	1888	}
1287		1889
1288	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1289	sub uniq_path {	1891	sub uniq_path {
1290	my ($self) = @_;	1892	my ($self) = @_;
1291		1893
1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1294	}	1896	}
1295		1897
1296	# and all this just because we cannot iterate over	1898	sub decay_objects {
1297	# all maps in C++...
1298	sub change_all_map_light {
1299	my ($change) = @_;	1899	my ($self) = @_;
1300		1900
1301	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1302	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1303	}	1904	}
1304		1905
1305	sub unlink_save {	1906	sub unlink_save {
1306	my ($self) = @_;	1907	my ($self) = @_;
1307		1908
…		…
1312		1913
1313	sub load_header_from($) {	1914	sub load_header_from($) {
1314	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1315		1916
1316	utf8::encode $path;	1917	utf8::encode $path;
1317	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1318	# or return;
1319
1320	$self->_load_header ($path)
1321	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;
1322		1926
1323	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1324		1928
1325	1	1929	1
1326	}	1930	}
…		…
1365	$self->load_header_orig	1969	$self->load_header_orig
1366	or return;	1970	or return;
1367	$self->prepare_orig;	1971	$self->prepare_orig;
1368	}	1972	}
1369		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
1370	1	1980	1
1371	}	1981	}
1372		1982
1373	sub find;	1983	sub find;
1374	sub find {	1984	sub find {
1375	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1376		1986
1377	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1378		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1379	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1380		1991
1381	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1382	my $guard = cf::lock_acquire "map_find:$path";
1383	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1384	or return;	1994	or return;
1385		1995
1386	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1387		1997
1388	$map->load_header	1998	$map->load_header
1389	or return;	1999	or return;
1390		2000
1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1392	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1393	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1394	$map->reset;	2006	$map->reset;
1395	undef $guard;
1396	return find $path;	2007	return find $path;
1397	}	2008	}
1398		2009
1399	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1400	}	2011	}
…		…
1407	my ($self) = @_;	2018	my ($self) = @_;
1408		2019
1409	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1410		2021
1411	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1412	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1413		2026
		2027	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2029
1416	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1417		2031
1418	$self->alloc;	2032	$self->alloc;
1419		2033
1420	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1421		2036
1422	$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)
1423	or return;	2040	or return;
1424		2041
1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1426	if delete $self->{load_original};	2043	if delete $self->{load_original};
1427		2044
1428	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1429	utf8::encode $uniq;	2046	utf8::encode $uniq;
1430	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1431	$self->clear_unique_items;	2049	$self->clear_unique_items;
1432	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1433	}	2053	}
1434	}	2054	}
1435		2055
1436	Coro::cede;	2056	$f->resolve_delayed_derefs;
1437		2057
		2058	cf::cede_to_tick;
1438	# now do the right thing for maps	2059	# now do the right thing for maps
1439	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1440
1441	unless ($self->{deny_activate}) {
1442	$self->decay_objects;
1443	$self->fix_auto_apply;
1444	$self->update_buttons;
1445	Coro::cede;
1446	$self->set_darkness_map;
1447	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1448	unless $self->difficulty;	2062	unless $self->difficulty;
1449	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;
1450	$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);
1451	}	2077	}
1452		2078
1453	$self->post_load;	2079	$self->post_load;
1454
1455	$self->in_memory (cf::MAP_IN_MEMORY);
1456	}	2080	}
1457		2081
1458	sub customise_for {	2082	sub customise_for {
1459	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1460		2084
1461	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1462	if $self->per_player;	2086	if $self->per_player;
1463		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1464	$self	2091	$self
1465	}	2092	}
1466		2093
1467	# 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
1468	sub load_diag {	2095	sub load_neighbours {
1469	my ($map) = @_;	2096	my ($map) = @_;
1470		2097
1471	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1472		2099
1473	for (0 .. 3) {	2100	for (0 .. 3) {
1474	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1475	or next;	2102	or next;
1476	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1477	or next;	2104	or next;
1478	$neigh->load;	2105	$neigh->load;
1479		2106
		2107	push @neigh,
1480	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1481	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1482	}	2110	}
1483		2111
1484	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1485	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1486	or next;	2115	or next;
1487	$neigh->load;	2116	$neigh->load;
1488	}	2117	}
1489	}	2118	}
1490		2119
…		…
1495	}	2124	}
1496		2125
1497	sub do_load_sync {	2126	sub do_load_sync {
1498	my ($map) = @_;	2127	my ($map) = @_;
1499		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1500	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1501	}	2133	}
1502		2134
1503	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1504	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1505		2137
1506	sub find_async {	2138	sub find_async {
1507	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1508		2140
1509	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1510		2142
1511	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1512	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1513	}	2145	}
1514		2146
1515	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1516	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1517	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1518	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1519	my $map = find $path	2154	if (my $map = find $k) {
1520	or next;
1521	$map->load;	2155	$map->load if $v;
		2156	}
1522		2157
1523	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1524	}	2159	}
1525	}	2160	}
1526	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1527	};	2162	};
1528	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1531	}	2166	}
1532		2167
1533	sub save {	2168	sub save {
1534	my ($self) = @_;	2169	my ($self) = @_;
1535		2170
1536	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1537		2172
1538	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1539		2174
1540	return unless $self->dirty;	2175	return unless $self->dirty;
1541		2176
…		…
1547	return if $self->{deny_save};	2182	return if $self->{deny_save};
1548		2183
1549	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1550		2185
1551	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1552	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1553	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1554		2192
1555	if ($uniq) {	2193	if ($uniq) {
1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1557	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1558	} else {	2196	} else {
…		…
1564	my ($self) = @_;	2202	my ($self) = @_;
1565		2203
1566	# save first because save cedes	2204	# save first because save cedes
1567	$self->save;	2205	$self->save;
1568		2206
1569	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1570		2208
1571	return if $self->players;	2209	return if $self->players;
1572	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1573	return if $self->{deny_save};	2211	return if $self->{deny_save};
1574		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1575	$self->clear;	2217	$self->clear;
1576	$self->in_memory (cf::MAP_SWAPPED);
1577	}	2218	}
1578		2219
1579	sub reset_at {	2220	sub reset_at {
1580	my ($self) = @_;	2221	my ($self) = @_;
1581		2222
1582	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
1584	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1585		2225
1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1587	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;
1588		2228
…		…
1599	my ($self) = @_;	2239	my ($self) = @_;
1600		2240
1601	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2242
1603	return if $self->players;	2243	return if $self->players;
1604	return if $self->isa ("ext::map_per_player");#d#
1605		2244
1606	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1607		2246
1608	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1609		2248
1610	# need to save uniques path	2249	# need to save uniques path
1611	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1615	if $uniq;	2254	if $uniq;
1616	}	2255	}
1617		2256
1618	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1619		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1620	$self->clear;	2261	$self->clear;
1621
1622	$_->clear_links_to ($self) for values %cf::MAP;
1623		2262
1624	$self->unlink_save;	2263	$self->unlink_save;
1625	$self->destroy;	2264	$self->destroy;
1626	}	2265	}
1627		2266
1628	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1629		2268
1630	sub nuke {	2269	sub nuke {
1631	my ($self) = @_;	2270	my ($self) = @_;
1632		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1633	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1634		2276
1635	$self->unlink_save;	2277	$self->unlink_save;
1636		2278
1637	bless $self, "cf::map";	2279	bless $self, "cf::map";
1638	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1639	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1640	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1641	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1642		2284
1643	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1644		2287
1645	$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	]
1646	}	2325	}
1647		2326
1648	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1649		2328
1650	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1651	instantiated unique items. May block.	2330	instantiated unique items. May block.
1652		2331
1653	=cut	2332	=cut
1654		2333
1655	sub unique_maps() {	2334	sub unique_maps() {
1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1657	or return;	2336	map {
1658
1659	my @paths;
1660
1661	for (@$files) {
1662	utf8::decode $_;	2337	utf8::decode $_;
1663	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1664	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1665		2340	? ()
1666	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1667	}	2343	]
1668
1669	\@paths
1670	}	2344	}
1671		2345
1672	package cf;	2346	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory). May block.
		2350
		2351	=cut
		2352
		2353	sub static_maps() {
		2354	my @dirs = "";
		2355	my @maps;
		2356
		2357	while (@dirs) {
		2358	my $dir = shift @dirs;
		2359
		2360	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2361	or return;
		2362
		2363	for (@$files) {
		2364	s/\.map$// or next;
		2365	utf8::decode $_;
		2366	push @maps, "$dir/$_";
		2367	}
		2368
		2369	push @dirs, map "$dir/$_", @$dirs;
		2370	}
		2371
		2372	\@maps
		2373	}
1673		2374
1674	=back	2375	=back
1675		2376
1676	=head3 cf::object	2377	=head3 cf::object
1677		2378
…		…
1681		2382
1682	=over 4	2383	=over 4
1683		2384
1684	=item $ob->inv_recursive	2385	=item $ob->inv_recursive
1685		2386
1686	Returns the inventory of the object _and_ their inventories, recursively.	2387	Returns the inventory of the object I<and> their inventories, recursively,
		2388	but I<not> the object itself.
1687		2389
1688	=cut	2390	=cut
1689		2391
1690	sub inv_recursive_;	2392	sub inv_recursive_;
1691	sub inv_recursive_ {	2393	sub inv_recursive_ {
…		…
1694		2396
1695	sub inv_recursive {	2397	sub inv_recursive {
1696	inv_recursive_ inv $_[0]	2398	inv_recursive_ inv $_[0]
1697	}	2399	}
1698		2400
		2401	=item $ref = $ob->ref
		2402
		2403	Creates and returns a persistent reference to an object that can be stored as a string.
		2404
		2405	=item $ob = cf::object::deref ($refstring)
		2406
		2407	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2408	even if the object actually exists. May block.
		2409
		2410	=cut
		2411
		2412	sub deref {
		2413	my ($ref) = @_;
		2414
		2415	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2416	my ($uuid, $name) = ($1, $2);
		2417	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2418	or return;
		2419	$pl->ob->uuid eq $uuid
		2420	or return;
		2421
		2422	$pl->ob
		2423	} else {
		2424	warn "$ref: cannot resolve object reference\n";
		2425	undef
		2426	}
		2427	}
		2428
1699	package cf;	2429	package cf;
1700		2430
1701	=back	2431	=back
1702		2432
1703	=head3 cf::object::player	2433	=head3 cf::object::player
…		…
1709	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1710	can be C<undef>. Does the right thing when the player is currently in a	2440	can be C<undef>. Does the right thing when the player is currently in a
1711	dialogue with the given NPC character.	2441	dialogue with the given NPC character.
1712		2442
1713	=cut	2443	=cut
		2444
		2445	our $SAY_CHANNEL = {
		2446	id => "say",
		2447	title => "Map",
		2448	reply => "say ",
		2449	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2450	};
		2451
		2452	our $CHAT_CHANNEL = {
		2453	id => "chat",
		2454	title => "Chat",
		2455	reply => "chat ",
		2456	tooltip => "Player chat and shouts, global to the server.",
		2457	};
1714		2458
1715	# rough implementation of a future "reply" method that works	2459	# rough implementation of a future "reply" method that works
1716	# with dialog boxes.	2460	# with dialog boxes.
1717	#TODO: the first argument must go, split into a $npc->reply_to ( method	2461	#TODO: the first argument must go, split into a $npc->reply_to ( method
1718	sub cf::object::player::reply($$$;$) {	2462	sub cf::object::player::reply($$$;$) {
…		…
1720		2464
1721	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2465	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1722		2466
1723	if ($self->{record_replies}) {	2467	if ($self->{record_replies}) {
1724	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2468	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2469
1725	} else {	2470	} else {
		2471	my $pl = $self->contr;
		2472
		2473	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2474	my $dialog = $pl->{npc_dialog};
		2475	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2476
		2477	} else {
1726	$msg = $npc->name . " says: $msg" if $npc;	2478	$msg = $npc->name . " says: $msg" if $npc;
1727	$self->message ($msg, $flags);	2479	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2480	}
1728	}	2481	}
		2482	}
		2483
		2484	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2485
		2486	=cut
		2487
		2488	sub cf::object::send_msg {
		2489	my $pl = shift->contr
		2490	or return;
		2491	$pl->send_msg (@_);
1729	}	2492	}
1730		2493
1731	=item $player_object->may ("access")	2494	=item $player_object->may ("access")
1732		2495
1733	Returns wether the given player is authorized to access resource "access"	2496	Returns wether the given player is authorized to access resource "access"
…		…
1746		2509
1747	=item $player_object->enter_link	2510	=item $player_object->enter_link
1748		2511
1749	Freezes the player and moves him/her to a special map (C<{link}>).	2512	Freezes the player and moves him/her to a special map (C<{link}>).
1750		2513
1751	The player should be reasonably safe there for short amounts of time. You	2514	The player should be reasonably safe there for short amounts of time (e.g.
1752	I<MUST> call C<leave_link> as soon as possible, though.	2515	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2516	though, as the palyer cannot control the character while it is on the link
		2517	map.
1753		2518
1754	Will never block.	2519	Will never block.
1755		2520
1756	=item $player_object->leave_link ($map, $x, $y)	2521	=item $player_object->leave_link ($map, $x, $y)
1757		2522
…		…
1780	$self->deactivate_recursive;	2545	$self->deactivate_recursive;
1781		2546
1782	return if UNIVERSAL::isa $self->map, "ext::map_link";	2547	return if UNIVERSAL::isa $self->map, "ext::map_link";
1783		2548
1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2549	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1785	if $self->map;	2550	if $self->map && $self->map->{path} ne "{link}";
1786		2551
1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2552	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1788	}	2553	}
1789		2554
1790	sub cf::object::player::leave_link {	2555	sub cf::object::player::leave_link {
1791	my ($self, $map, $x, $y) = @_;	2556	my ($self, $map, $x, $y) = @_;
		2557
		2558	return unless $self->contr->active;
1792		2559
1793	my $link_pos = delete $self->{_link_pos};	2560	my $link_pos = delete $self->{_link_pos};
1794		2561
1795	unless ($map) {	2562	unless ($map) {
1796	# restore original map position	2563	# restore original map position
…		…
1810	# use -1 or undef as default coordinates, not 0, 0	2577	# use -1 or undef as default coordinates, not 0, 0
1811	($x, $y) = ($map->enter_x, $map->enter_y)	2578	($x, $y) = ($map->enter_x, $map->enter_y)
1812	if $x <=0 && $y <= 0;	2579	if $x <=0 && $y <= 0;
1813		2580
1814	$map->load;	2581	$map->load;
1815	$map->load_diag;	2582	$map->load_neighbours;
1816		2583
1817	return unless $self->contr->active;	2584	return unless $self->contr->active;
1818	$self->activate_recursive;
1819		2585
1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2586	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1821	$self->enter_map ($map, $x, $y);	2587	$self->enter_map ($map, $x, $y);
1822	}
1823		2588
1824	cf::player->attach (	2589	# only activate afterwards, to support waiting in hooks
1825	on_logout => sub {	2590	$self->activate_recursive;
1826	my ($pl) = @_;	2591	}
1827		2592
1828	# abort map switching before logout	2593	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1829	if ($pl->ob->{_link_pos}) {
1830	cf::sync_job {
1831	$pl->ob->leave_link
1832	};
1833	}
1834	},
1835	on_login => sub {
1836	my ($pl) = @_;
1837		2594
1838	# try to abort aborted map switching on player login :)	2595	Moves the player to the given map-path and coordinates by first freezing
1839	# should happen only on crashes	2596	her, loading and preparing them map, calling the provided $check callback
1840	if ($pl->ob->{_link_pos}) {	2597	that has to return the map if sucecssful, and then unfreezes the player on
1841	$pl->ob->enter_link;	2598	the new (success) or old (failed) map position. In either case, $done will
1842	(async {	2599	be called at the end of this process.
1843	$pl->ob->reply (undef,
1844	"There was an internal problem at your last logout, "
1845	. "the server will try to bring you to your intended destination in a second.",
1846	cf::NDI_RED);
1847	# we need this sleep as the login has a concurrent enter_exit running
1848	# and this sleep increases chances of the player not ending up in scorn
1849	Coro::Timer::sleep 1;
1850	$pl->ob->leave_link;
1851	})->prio (2);
1852	}
1853	},
1854	);
1855		2600
1856	=item $player_object->goto ($path, $x, $y)	2601	Note that $check will be called with a potentially non-loaded map, so if
		2602	it needs a loaded map it has to call C<< ->load >>.
1857		2603
1858	=cut	2604	=cut
		2605
		2606	our $GOTOGEN;
1859		2607
1860	sub cf::object::player::goto {	2608	sub cf::object::player::goto {
1861	my ($self, $path, $x, $y) = @_;	2609	my ($self, $path, $x, $y, $check, $done) = @_;
		2610
		2611	# do generation counting so two concurrent goto's will be executed in-order
		2612	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1862		2613
1863	$self->enter_link;	2614	$self->enter_link;
1864		2615
1865	(async {	2616	(async {
		2617	$Coro::current->{desc} = "player::goto $path $x $y";
		2618
		2619	# *tag paths override both path and x|y
		2620	if ($path =~ /^\*(.*)$/) {
		2621	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2622	my $ob = $obs[rand @obs];
		2623
		2624	# see if we actually can go there
		2625	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2626	$ob = $obs[rand @obs];
		2627	} else {
		2628	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2629	}
		2630	# else put us there anyways for now #d#
		2631
		2632	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2633	} else {
		2634	($path, $x, $y) = (undef, undef, undef);
		2635	}
		2636	}
		2637
1866	my $map = eval {	2638	my $map = eval {
1867	my $map = cf::map::find $path;	2639	my $map = defined $path ? cf::map::find $path : undef;
		2640
		2641	if ($map) {
1868	$map = $map->customise_for ($self) if $map;	2642	$map = $map->customise_for ($self);
		2643	$map = $check->($map) if $check && $map;
		2644	} else {
		2645	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2646	}
		2647
1869	$map	2648	$map
		2649	};
		2650
		2651	if ($@) {
		2652	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2653	LOG llevError | logBacktrace, Carp::longmess $@;
1870	} or	2654	}
1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1872		2655
		2656	if ($gen == $self->{_goto_generation}) {
		2657	delete $self->{_goto_generation};
1873	$self->leave_link ($map, $x, $y);	2658	$self->leave_link ($map, $x, $y);
		2659	}
		2660
		2661	$done->() if $done;
1874	})->prio (1);	2662	})->prio (1);
1875	}	2663	}
1876		2664
1877	=item $player_object->enter_exit ($exit_object)	2665	=item $player_object->enter_exit ($exit_object)
1878		2666
…		…
1898	}	2686	}
1899		2687
1900	sub prepare_random_map {	2688	sub prepare_random_map {
1901	my ($exit) = @_;	2689	my ($exit) = @_;
1902		2690
1903	my $guard = cf::lock_acquire "exit_prepare:$exit";
1904
1905	# all this does is basically replace the /! path by	2691	# all this does is basically replace the /! path by
1906	# a new random map path (?random/...) with a seed	2692	# a new random map path (?random/...) with a seed
1907	# that depends on the exit object	2693	# that depends on the exit object
1908		2694
1909	my $rmp = parse_random_map_params $exit->msg;	2695	my $rmp = parse_random_map_params $exit->msg;
…		…
1911	if ($exit->map) {	2697	if ($exit->map) {
1912	$rmp->{region} = $exit->region->name;	2698	$rmp->{region} = $exit->region->name;
1913	$rmp->{origin_map} = $exit->map->path;	2699	$rmp->{origin_map} = $exit->map->path;
1914	$rmp->{origin_x} = $exit->x;	2700	$rmp->{origin_x} = $exit->x;
1915	$rmp->{origin_y} = $exit->y;	2701	$rmp->{origin_y} = $exit->y;
		2702
		2703	$exit->map->touch;
1916	}	2704	}
1917		2705
1918	$rmp->{random_seed} ||= $exit->random_seed;	2706	$rmp->{random_seed} ||= $exit->random_seed;
1919		2707
1920	my $data = cf::to_json $rmp;	2708	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1921	my $md5 = Digest::MD5::md5_hex $data;	2709	my $md5 = Digest::MD5::md5_hex $data;
1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2710	my $meta = "$RANDOMDIR/$md5.meta";
1923		2711
1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2712	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1925	aio_write $fh, 0, (length $data), $data, 0;	2713	aio_write $fh, 0, (length $data), $data, 0;
1926	undef $fh;	2714	undef $fh;
1927	aio_rename "$meta~", $meta;	2715	aio_rename "$meta~", $meta;
1928		2716
		2717	my $slaying = "?random/$md5";
		2718
		2719	if ($exit->valid) {
1929	$exit->slaying ("?random/$md5");	2720	$exit->slaying ("?random/$md5");
1930	$exit->msg (undef);	2721	$exit->msg (undef);
		2722	}
1931	}	2723	}
1932	}	2724	}
1933		2725
1934	sub cf::object::player::enter_exit {	2726	sub cf::object::player::enter_exit {
1935	my ($self, $exit) = @_;	2727	my ($self, $exit) = @_;
1936		2728
1937	return unless $self->type == cf::PLAYER;	2729	return unless $self->type == cf::PLAYER;
1938		2730
1939	if ($exit->slaying eq "/!") {
1940	#TODO: this should de-fi-ni-te-ly not be a sync-job
1941	cf::sync_job { prepare_random_map $exit };
1942	}
1943
1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1945	my $hp = $exit->stats->hp;
1946	my $sp = $exit->stats->sp;
1947
1948	$self->enter_link;	2731	$self->enter_link;
1949		2732
1950	(async {	2733	(async {
1951	$self->deactivate_recursive; # just to be sure	2734	$Coro::current->{desc} = "enter_exit";
		2735
1952	unless (eval {	2736	unless (eval {
		2737	$self->deactivate_recursive; # just to be sure
		2738
		2739	# random map handling
		2740	{
		2741	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2742
		2743	prepare_random_map $exit
		2744	if $exit->slaying eq "/!";
		2745	}
		2746
		2747	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2748	my $x = $exit->stats->hp;
		2749	my $y = $exit->stats->sp;
		2750
1953	$self->goto ($slaying, $hp, $sp);	2751	$self->goto ($map, $x, $y);
1954		2752
		2753	# if exit is damned, update players death & WoR home-position
		2754	$self->contr->savebed ($map, $x, $y)
		2755	if $exit->flag (cf::FLAG_DAMNED);
		2756
1955	1;	2757	1
1956	}) {	2758	}) {
1957	$self->message ("Something went wrong deep within the crossfire server. "	2759	$self->message ("Something went wrong deep within the deliantra server. "
1958	. "I'll try to bring you back to the map you were before. "	2760	. "I'll try to bring you back to the map you were before. "
1959	. "Please report this to the dungeon master!",	2761	. "Please report this to the dungeon master!",
1960	cf::NDI_UNIQUE | cf::NDI_RED);	2762	cf::NDI_UNIQUE | cf::NDI_RED);
1961		2763
1962	warn "ERROR in enter_exit: $@";	2764	warn "ERROR in enter_exit: $@";
1963	$self->leave_link;	2765	$self->leave_link;
1964	}	2766	}
1965	})->prio (1);	2767	})->prio (1);
…		…
1978		2780
1979	sub cf::client::send_drawinfo {	2781	sub cf::client::send_drawinfo {
1980	my ($self, $text, $flags) = @_;	2782	my ($self, $text, $flags) = @_;
1981		2783
1982	utf8::encode $text;	2784	utf8::encode $text;
1983	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2785	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1984	}	2786	}
1985		2787
		2788	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2789
		2790	Send a drawinfo or msg packet to the client, formatting the msg for the
		2791	client if neccessary. C<$type> should be a string identifying the type of
		2792	the message, with C<log> being the default. If C<$color> is negative, suppress
		2793	the message unless the client supports the msg packet.
		2794
		2795	=cut
		2796
		2797	# non-persistent channels (usually the info channel)
		2798	our %CHANNEL = (
		2799	"c/motd" => {
		2800	id => "infobox",
		2801	title => "MOTD",
		2802	reply => undef,
		2803	tooltip => "The message of the day",
		2804	},
		2805	"c/identify" => {
		2806	id => "infobox",
		2807	title => "Identify",
		2808	reply => undef,
		2809	tooltip => "Items recently identified",
		2810	},
		2811	"c/examine" => {
		2812	id => "infobox",
		2813	title => "Examine",
		2814	reply => undef,
		2815	tooltip => "Signs and other items you examined",
		2816	},
		2817	"c/shopinfo" => {
		2818	id => "infobox",
		2819	title => "Shop Info",
		2820	reply => undef,
		2821	tooltip => "What your bargaining skill tells you about the shop",
		2822	},
		2823	"c/book" => {
		2824	id => "infobox",
		2825	title => "Book",
		2826	reply => undef,
		2827	tooltip => "The contents of a note or book",
		2828	},
		2829	"c/lookat" => {
		2830	id => "infobox",
		2831	title => "Look",
		2832	reply => undef,
		2833	tooltip => "What you saw there",
		2834	},
		2835	"c/who" => {
		2836	id => "infobox",
		2837	title => "Players",
		2838	reply => undef,
		2839	tooltip => "Shows players who are currently online",
		2840	},
		2841	"c/body" => {
		2842	id => "infobox",
		2843	title => "Body Parts",
		2844	reply => undef,
		2845	tooltip => "Shows which body parts you posess and are available",
		2846	},
		2847	"c/statistics" => {
		2848	id => "infobox",
		2849	title => "Statistics",
		2850	reply => undef,
		2851	tooltip => "Shows your primary statistics",
		2852	},
		2853	"c/skills" => {
		2854	id => "infobox",
		2855	title => "Skills",
		2856	reply => undef,
		2857	tooltip => "Shows your experience per skill and item power",
		2858	},
		2859	"c/shopitems" => {
		2860	id => "infobox",
		2861	title => "Shop Items",
		2862	reply => undef,
		2863	tooltip => "Shows the items currently for sale in this shop",
		2864	},
		2865	"c/resistances" => {
		2866	id => "infobox",
		2867	title => "Resistances",
		2868	reply => undef,
		2869	tooltip => "Shows your resistances",
		2870	},
		2871	"c/pets" => {
		2872	id => "infobox",
		2873	title => "Pets",
		2874	reply => undef,
		2875	tooltip => "Shows information abotu your pets/a specific pet",
		2876	},
		2877	"c/perceiveself" => {
		2878	id => "infobox",
		2879	title => "Perceive Self",
		2880	reply => undef,
		2881	tooltip => "You gained detailed knowledge about yourself",
		2882	},
		2883	"c/uptime" => {
		2884	id => "infobox",
		2885	title => "Uptime",
		2886	reply => undef,
		2887	tooltip => "How long the server has been running since last restart",
		2888	},
		2889	"c/mapinfo" => {
		2890	id => "infobox",
		2891	title => "Map Info",
		2892	reply => undef,
		2893	tooltip => "Information related to the maps",
		2894	},
		2895	"c/party" => {
		2896	id => "party",
		2897	title => "Party",
		2898	reply => "gsay ",
		2899	tooltip => "Messages and chat related to your party",
		2900	},
		2901	"c/death" => {
		2902	id => "death",
		2903	title => "Death",
		2904	reply => undef,
		2905	tooltip => "Reason for and more info about your most recent death",
		2906	},
		2907	"c/say" => $SAY_CHANNEL,
		2908	"c/chat" => $CHAT_CHANNEL,
		2909	);
		2910
		2911	sub cf::client::send_msg {
		2912	my ($self, $channel, $msg, $color, @extra) = @_;
		2913
		2914	$msg = $self->pl->expand_cfpod ($msg)
		2915	unless $color & cf::NDI_VERBATIM;
		2916
		2917	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2918
		2919	# check predefined channels, for the benefit of C
		2920	if ($CHANNEL{$channel}) {
		2921	$channel = $CHANNEL{$channel};
		2922
		2923	$self->ext_msg (channel_info => $channel);
		2924	$channel = $channel->{id};
		2925
		2926	} elsif (ref $channel) {
		2927	# send meta info to client, if not yet sent
		2928	unless (exists $self->{channel}{$channel->{id}}) {
		2929	$self->{channel}{$channel->{id}} = $channel;
		2930	$self->ext_msg (channel_info => $channel);
		2931	}
		2932
		2933	$channel = $channel->{id};
		2934	}
		2935
		2936	return unless @extra || length $msg;
		2937
		2938	# default colour, mask it out
		2939	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2940	if $color & cf::NDI_DEF;
		2941
		2942	my $pkt = "msg "
		2943	. $self->{json_coder}->encode (
		2944	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2945	);
		2946
		2947	# try lzf for large packets
		2948	$pkt = "lzf " . Compress::LZF::compress $pkt
		2949	if 1024 <= length $pkt and $self->{can_lzf};
		2950
		2951	# split very large packets
		2952	if (8192 < length $pkt and $self->{can_lzf}) {
		2953	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2954	$pkt = "frag";
		2955	}
		2956
		2957	$self->send_packet ($pkt);
		2958	}
		2959
		2960	=item $client->ext_msg ($type, @msg)
		2961
		2962	Sends an ext event to the client.
		2963
		2964	=cut
		2965
		2966	sub cf::client::ext_msg($$@) {
		2967	my ($self, $type, @msg) = @_;
		2968
		2969	if ($self->extcmd == 2) {
		2970	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2971	} elsif ($self->extcmd == 1) { # TODO: remove
		2972	push @msg, msgtype => "event_$type";
		2973	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2974	}
		2975	}
		2976
		2977	=item $client->ext_reply ($msgid, @msg)
		2978
		2979	Sends an ext reply to the client.
		2980
		2981	=cut
		2982
		2983	sub cf::client::ext_reply($$@) {
		2984	my ($self, $id, @msg) = @_;
		2985
		2986	if ($self->extcmd == 2) {
		2987	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2988	} elsif ($self->extcmd == 1) {
		2989	#TODO: version 1, remove
		2990	unshift @msg, msgtype => "reply", msgid => $id;
		2991	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2992	}
		2993	}
1986		2994
1987	=item $success = $client->query ($flags, "text", \&cb)	2995	=item $success = $client->query ($flags, "text", \&cb)
1988		2996
1989	Queues a query to the client, calling the given callback with	2997	Queues a query to the client, calling the given callback with
1990	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2998	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1991	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2999	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1992		3000
1993	Queries can fail, so check the return code. Or don't, as queries will become	3001	Queries can fail, so check the return code. Or don't, as queries will
1994	reliable at some point in the future.	3002	become reliable at some point in the future.
1995		3003
1996	=cut	3004	=cut
1997		3005
1998	sub cf::client::query {	3006	sub cf::client::query {
1999	my ($self, $flags, $text, $cb) = @_;	3007	my ($self, $flags, $text, $cb) = @_;
…		…
2007	utf8::encode $text;	3015	utf8::encode $text;
2008	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3016	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2009		3017
2010	$self->send_packet ($self->{query_queue}[0][0])	3018	$self->send_packet ($self->{query_queue}[0][0])
2011	if @{ $self->{query_queue} } == 1;	3019	if @{ $self->{query_queue} } == 1;
		3020
		3021	1
2012	}	3022	}
2013		3023
2014	cf::client->attach (	3024	cf::client->attach (
		3025	on_connect => sub {
		3026	my ($ns) = @_;
		3027
		3028	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3029	},
2015	on_reply => sub {	3030	on_reply => sub {
2016	my ($ns, $msg) = @_;	3031	my ($ns, $msg) = @_;
2017		3032
2018	# this weird shuffling is so that direct followup queries	3033	# this weird shuffling is so that direct followup queries
2019	# get handled first	3034	# get handled first
…		…
2031	} else {	3046	} else {
2032	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2033	}	3048	}
2034	}	3049	}
2035	},	3050	},
		3051	on_exticmd => sub {
		3052	my ($ns, $buf) = @_;
		3053
		3054	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3055
		3056	if (ref $msg) {
		3057	my ($type, $reply, @payload) =
		3058	"ARRAY" eq ref $msg
		3059	? @$msg
		3060	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3061
		3062	my @reply;
		3063
		3064	if (my $cb = $EXTICMD{$type}) {
		3065	@reply = $cb->($ns, @payload);
		3066	}
		3067
		3068	$ns->ext_reply ($reply, @reply)
		3069	if $reply;
		3070
		3071	} else {
		3072	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3073	}
		3074
		3075	cf::override;
		3076	},
2036	);	3077	);
2037		3078
2038	=item $client->async (\&cb)	3079	=item $client->async (\&cb)
2039		3080
2040	Create a new coroutine, running the specified callback. The coroutine will	3081	Create a new coroutine, running the specified callback. The coroutine will
…		…
2081	our $safe = new Safe "safe";	3122	our $safe = new Safe "safe";
2082	our $safe_hole = new Safe::Hole;	3123	our $safe_hole = new Safe::Hole;
2083		3124
2084	$SIG{FPE} = 'IGNORE';	3125	$SIG{FPE} = 'IGNORE';
2085		3126
2086	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3127	$safe->permit_only (Opcode::opset qw(
		3128	:base_core :base_mem :base_orig :base_math
		3129	grepstart grepwhile mapstart mapwhile
		3130	sort time
		3131	));
2087		3132
2088	# here we export the classes and methods available to script code	3133	# here we export the classes and methods available to script code
2089		3134
2090	=pod	3135	=pod
2091		3136
2092	The following fucntions and emthods are available within a safe environment:	3137	The following functions and methods are available within a safe environment:
2093		3138
2094	cf::object contr pay_amount pay_player map	3139	cf::object
		3140	contr pay_amount pay_player map x y force_find force_add destroy
		3141	insert remove name archname title slaying race decrease split
		3142	value
		3143
2095	cf::object::player player	3144	cf::object::player
2096	cf::player peaceful	3145	player
2097	cf::map trigger	3146
		3147	cf::player
		3148	peaceful
		3149
		3150	cf::map
		3151	trigger
2098		3152
2099	=cut	3153	=cut
2100		3154
2101	for (	3155	for (
2102	["cf::object" => qw(contr pay_amount pay_player map)],	3156	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3157	insert remove inv nrof name archname title slaying race
		3158	decrease split destroy change_exp value msg lore send_msg)],
2103	["cf::object::player" => qw(player)],	3159	["cf::object::player" => qw(player)],
2104	["cf::player" => qw(peaceful)],	3160	["cf::player" => qw(peaceful send_msg)],
2105	["cf::map" => qw(trigger)],	3161	["cf::map" => qw(trigger)],
2106	) {	3162	) {
2107	no strict 'refs';	3163	no strict 'refs';
2108	my ($pkg, @funs) = @$_;	3164	my ($pkg, @funs) = @$_;
2109	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3165	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2126	my ($code, %vars) = @_;	3182	my ($code, %vars) = @_;
2127		3183
2128	my $qcode = $code;	3184	my $qcode = $code;
2129	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3185	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2130	$qcode =~ s/\n/\\n/g;	3186	$qcode =~ s/\n/\\n/g;
		3187
		3188	%vars = (_dummy => 0) unless %vars;
2131		3189
2132	local $_;	3190	local $_;
2133	local @safe::cf::_safe_eval_args = values %vars;	3191	local @safe::cf::_safe_eval_args = values %vars;
2134		3192
2135	my $eval =	3193	my $eval =
…		…
2178	=back	3236	=back
2179		3237
2180	=cut	3238	=cut
2181		3239
2182	#############################################################################	3240	#############################################################################
2183
2184	=head2 EXTENSION DATABASE SUPPORT
2185
2186	Crossfire maintains a very simple database for extension use. It can
2187	currently store anything that can be serialised using Storable, which
2188	excludes objects.
2189
2190	The parameter C<$family> should best start with the name of the extension
2191	using it, it should be unique.
2192
2193	=over 4
2194
2195	=item $value = cf::db_get $family => $key
2196
2197	Returns a single value from the database.
2198
2199	=item cf::db_put $family => $key => $value
2200
2201	Stores the given C<$value> in the family.
2202
2203	=cut
2204
2205	our $DB;
2206
2207	sub db_init {
2208	unless ($DB) {
2209	$DB = BDB::db_create $DB_ENV;
2210
2211	cf::sync_job {
2212	eval {
2213	$DB->set_flags (BDB::CHKSUM);
2214
2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217	cf::cleanup "db_open(db): $!" if $!;
2218	};
2219	cf::cleanup "db_open(db): $@" if $@;
2220	};
2221
2222	my $path = cf::localdir . "/database.pst";
2223	if (stat $path) {
2224	cf::sync_job {
2225	my $pst = Storable::retrieve $path;
2226
2227	cf::db_put (board => data => $pst->{board});
2228	cf::db_put (guildrules => data => $pst->{guildrules});
2229	cf::db_put (rent => balance => $pst->{rent}{balance});
2230	BDB::db_env_txn_checkpoint $DB_ENV;
2231
2232	unlink $path;
2233	};
2234	}
2235	}
2236	}
2237
2238	sub db_get($$) {
2239	my $key = "$_[0]/$_[1]";
2240
2241	cf::sync_job {
2242	BDB::db_get $DB, undef, $key, my $data;
2243
2244	$! ? ()
2245	: Compress::LZF::sthaw $data
2246	}
2247	}
2248
2249	sub db_put($$$) {
2250	BDB::dbreq_pri 4;
2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2252	}
2253
2254	#############################################################################
2255	# the server's init and main functions	3241	# the server's init and main functions
2256		3242
2257	sub init_resources {	3243	sub load_facedata($) {
2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3244	my ($path) = @_;
		3245
		3246	# HACK to clear player env face cache, we need some signal framework
		3247	# for this (global event?)
		3248	%ext::player_env::MUSIC_FACE_CACHE = ();
		3249
		3250	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3251
		3252	warn "loading facedata from $path\n";
		3253
		3254	my $facedata;
		3255	0 < aio_load $path, $facedata
		3256	or die "$path: $!";
		3257
		3258	$facedata = Coro::Storable::thaw $facedata;
		3259
		3260	$facedata->{version} == 2
		3261	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3262
		3263	# patch in the exptable
		3264	$facedata->{resource}{"res/exp_table"} = {
		3265	type => FT_RSRC,
		3266	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3267	};
		3268	cf::cede_to_tick;
		3269
		3270	{
		3271	my $faces = $facedata->{faceinfo};
		3272
		3273	while (my ($face, $info) = each %$faces) {
		3274	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3275
		3276	cf::face::set_visibility $idx, $info->{visibility};
		3277	cf::face::set_magicmap $idx, $info->{magicmap};
		3278	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3279	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3280
		3281	cf::cede_to_tick;
		3282	}
		3283
		3284	while (my ($face, $info) = each %$faces) {
		3285	next unless $info->{smooth};
		3286
		3287	my $idx = cf::face::find $face
		3288	or next;
		3289
		3290	if (my $smooth = cf::face::find $info->{smooth}) {
		3291	cf::face::set_smooth $idx, $smooth;
		3292	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3293	} else {
		3294	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3295	}
		3296
		3297	cf::cede_to_tick;
		3298	}
		3299	}
		3300
		3301	{
		3302	my $anims = $facedata->{animinfo};
		3303
		3304	while (my ($anim, $info) = each %$anims) {
		3305	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3306	cf::cede_to_tick;
		3307	}
		3308
		3309	cf::anim::invalidate_all; # d'oh
		3310	}
		3311
		3312	{
		3313	# TODO: for gcfclient pleasure, we should give resources
		3314	# that gcfclient doesn't grok a >10000 face index.
		3315	my $res = $facedata->{resource};
		3316
		3317	while (my ($name, $info) = each %$res) {
		3318	if (defined $info->{type}) {
		3319	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3320	my $data;
		3321
		3322	if ($info->{type} & 1) {
		3323	# prepend meta info
		3324
		3325	my $meta = $enc->encode ({
		3326	name => $name,
		3327	%{ $info->{meta} || {} },
		3328	});
		3329
		3330	$data = pack "(w/a*)*", $meta, $info->{data};
		3331	} else {
		3332	$data = $info->{data};
		3333	}
		3334
		3335	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3336	cf::face::set_type $idx, $info->{type};
		3337	} else {
		3338	$RESOURCE{$name} = $info;
		3339	}
		3340
		3341	cf::cede_to_tick;
		3342	}
		3343	}
		3344
		3345	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3346
		3347	1
		3348	}
		3349
		3350	cf::global->attach (on_resource_update => sub {
		3351	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3352	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3353
		3354	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3355	my $sound = $soundconf->{compat}[$_]
		3356	or next;
		3357
		3358	my $face = cf::face::find "sound/$sound->[1]";
		3359	cf::sound::set $sound->[0] => $face;
		3360	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3361	}
		3362
		3363	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3364	my $face = cf::face::find "sound/$v";
		3365	cf::sound::set $k => $face;
		3366	}
		3367	}
		3368	});
		3369
		3370	register_exticmd fx_want => sub {
		3371	my ($ns, $want) = @_;
		3372
		3373	while (my ($k, $v) = each %$want) {
		3374	$ns->fx_want ($k, $v);
		3375	}
		3376	};
		3377
		3378	sub load_resource_file($) {
		3379	my $guard = lock_acquire "load_resource_file";
		3380
		3381	my $status = load_resource_file_ $_[0];
		3382	get_slot 0.1, 100;
		3383	cf::arch::commit_load;
		3384
		3385	$status
		3386	}
		3387
		3388	sub reload_regions {
		3389	# HACK to clear player env face cache, we need some signal framework
		3390	# for this (global event?)
		3391	%ext::player_env::MUSIC_FACE_CACHE = ();
		3392
		3393	load_resource_file "$MAPDIR/regions"
2259	or die "unable to load regions file\n";#d#	3394	or die "unable to load regions file\n";
2260	}
2261		3395
2262	sub cfg_load {	3396	for (cf::region::list) {
		3397	$_->{match} = qr/$_->{match}/
		3398	if exists $_->{match};
		3399	}
		3400	}
		3401
		3402	sub reload_facedata {
		3403	load_facedata "$DATADIR/facedata"
		3404	or die "unable to load facedata\n";
		3405	}
		3406
		3407	sub reload_archetypes {
		3408	load_resource_file "$DATADIR/archetypes"
		3409	or die "unable to load archetypes\n";
		3410	}
		3411
		3412	sub reload_treasures {
		3413	load_resource_file "$DATADIR/treasures"
		3414	or die "unable to load treasurelists\n";
		3415	}
		3416
		3417	sub reload_resources {
		3418	warn "reloading resource files...\n";
		3419
		3420	reload_facedata;
		3421	reload_archetypes;
		3422	reload_regions;
		3423	reload_treasures;
		3424
		3425	warn "finished reloading resource files\n";
		3426	}
		3427
		3428	sub reload_config {
		3429	warn "reloading config file...\n";
		3430
2263	open my $fh, "<:utf8", cf::confdir . "/config"	3431	open my $fh, "<:utf8", "$CONFDIR/config"
2264	or return;	3432	or return;
2265		3433
2266	local $/;	3434	local $/;
2267	*CFG = YAML::Syck::Load <$fh>;	3435	*CFG = YAML::XS::Load scalar <$fh>;
2268		3436
2269	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3437	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2270		3438
2271	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3439	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2272	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3440	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3444	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2277	and die "WARNING: m(un)lockall failed: $!\n";	3445	and die "WARNING: m(un)lockall failed: $!\n";
2278	};	3446	};
2279	warn $@ if $@;	3447	warn $@ if $@;
2280	}	3448	}
2281	}
2282		3449
2283	sub init {	3450	warn "finished reloading resource files\n";
2284	init_resources;	3451	}
		3452
		3453	sub pidfile() {
		3454	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3455	or die "$PIDFILE: $!";
		3456	flock $fh, &Fcntl::LOCK_EX
		3457	or die "$PIDFILE: flock: $!";
		3458	$fh
		3459	}
		3460
		3461	# make sure only one server instance is running at any one time
		3462	sub atomic {
		3463	my $fh = pidfile;
		3464
		3465	my $pid = <$fh>;
		3466	kill 9, $pid if $pid > 0;
		3467
		3468	seek $fh, 0, 0;
		3469	print $fh $$;
		3470	}
		3471
		3472	sub main_loop {
		3473	warn "EV::loop starting\n";
		3474	if (1) {
		3475	EV::loop;
		3476	}
		3477	warn "EV::loop returned\n";
		3478	goto &main_loop unless $REALLY_UNLOOP;
2285	}	3479	}
2286		3480
2287	sub main {	3481	sub main {
		3482	cf::init_globals; # initialise logging
		3483
		3484	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3485	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3486	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3487	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3488
		3489	cf::init_experience;
		3490	cf::init_anim;
		3491	cf::init_attackmess;
		3492	cf::init_dynamic;
		3493
		3494	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3495
2288	# we must not ever block the main coroutine	3496	# we must not ever block the main coroutine
2289	local $Coro::idle = sub {	3497	local $Coro::idle = sub {
2290	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3498	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2291	(async {	3499	(async {
2292	Event::one_event;	3500	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3501	EV::loop EV::LOOP_ONESHOT;
2293	})->prio (Coro::PRIO_MAX);	3502	})->prio (Coro::PRIO_MAX);
2294	};	3503	};
2295		3504
2296	cfg_load;	3505	evthread_start IO::AIO::poll_fileno;
		3506
		3507	cf::sync_job {
		3508	reload_resources;
		3509	reload_config;
2297	db_init;	3510	db_init;
		3511
		3512	cf::load_settings;
		3513	cf::load_materials;
		3514	cf::init_uuid;
		3515	cf::init_signals;
		3516	cf::init_commands;
		3517	cf::init_skills;
		3518
		3519	cf::init_beforeplay;
		3520
		3521	atomic;
		3522
2298	load_extensions;	3523	load_extensions;
2299		3524
2300	$TICK_WATCHER->start;	3525	utime time, time, $RUNTIMEFILE;
2301	Event::loop;	3526
		3527	# no (long-running) fork's whatsoever before this point(!)
		3528	use POSIX ();
		3529	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3530
		3531	(pop @POST_INIT)->(0) while @POST_INIT;
		3532	};
		3533
		3534	main_loop;
2302	}	3535	}
2303		3536
2304	#############################################################################	3537	#############################################################################
2305	# initialisation and cleanup	3538	# initialisation and cleanup
2306		3539
2307	# install some emergency cleanup handlers	3540	# install some emergency cleanup handlers
2308	BEGIN {	3541	BEGIN {
		3542	our %SIGWATCHER = ();
2309	for my $signal (qw(INT HUP TERM)) {	3543	for my $signal (qw(INT HUP TERM)) {
2310	Event->signal (	3544	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2311	reentrant => 0,
2312	data => WF_AUTOCANCEL,
2313	signal => $signal,
2314	prio => 0,
2315	cb => sub {
2316	cf::cleanup "SIG$signal";	3545	cf::cleanup "SIG$signal";
2317	},
2318	);	3546	};
		3547	}
		3548	}
		3549
		3550	sub write_runtime_sync {
		3551	# first touch the runtime file to show we are still running:
		3552	# the fsync below can take a very very long time.
		3553
		3554	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3555
		3556	my $guard = cf::lock_acquire "write_runtime";
		3557
		3558	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3559	or return;
		3560
		3561	my $value = $cf::RUNTIME + 90 + 10;
		3562	# 10 is the runtime save interval, for a monotonic clock
		3563	# 60 allows for the watchdog to kill the server.
		3564
		3565	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3566	and return;
		3567
		3568	# always fsync - this file is important
		3569	aio_fsync $fh
		3570	and return;
		3571
		3572	# touch it again to show we are up-to-date
		3573	aio_utime $fh, undef, undef;
		3574
		3575	close $fh
		3576	or return;
		3577
		3578	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3579	and return;
		3580
		3581	warn "runtime file written.\n";
		3582
2319	}	3583	1
		3584	}
		3585
		3586	our $uuid_lock;
		3587	our $uuid_skip;
		3588
		3589	sub write_uuid_sync($) {
		3590	$uuid_skip ||= $_[0];
		3591
		3592	return if $uuid_lock;
		3593	local $uuid_lock = 1;
		3594
		3595	my $uuid = "$LOCALDIR/uuid";
		3596
		3597	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3598	or return;
		3599
		3600	my $value = uuid_seq uuid_cur;
		3601
		3602	unless ($value) {
		3603	warn "cowardly refusing to write zero uuid value!\n";
		3604	return;
		3605	}
		3606
		3607	my $value = uuid_str $value + $uuid_skip;
		3608	$uuid_skip = 0;
		3609
		3610	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3611	and return;
		3612
		3613	# always fsync - this file is important
		3614	aio_fsync $fh
		3615	and return;
		3616
		3617	close $fh
		3618	or return;
		3619
		3620	aio_rename "$uuid~", $uuid
		3621	and return;
		3622
		3623	warn "uuid file written ($value).\n";
		3624
		3625	1
		3626
		3627	}
		3628
		3629	sub write_uuid($$) {
		3630	my ($skip, $sync) = @_;
		3631
		3632	$sync ? write_uuid_sync $skip
		3633	: async { write_uuid_sync $skip };
2320	}	3634	}
2321		3635
2322	sub emergency_save() {	3636	sub emergency_save() {
2323	my $freeze_guard = cf::freeze_mainloop;	3637	my $freeze_guard = cf::freeze_mainloop;
2324		3638
2325	warn "enter emergency perl save\n";	3639	warn "emergency_perl_save: enter\n";
2326		3640
2327	cf::sync_job {	3641	cf::sync_job {
		3642	# this is a trade-off: we want to be very quick here, so
		3643	# save all maps without fsync, and later call a global sync
		3644	# (which in turn might be very very slow)
		3645	local $USE_FSYNC = 0;
		3646
2328	# use a peculiar iteration method to avoid tripping on perl	3647	# use a peculiar iteration method to avoid tripping on perl
2329	# refcount bugs in for. also avoids problems with players	3648	# refcount bugs in for. also avoids problems with players
2330	# and maps saved/destroyed asynchronously.	3649	# and maps saved/destroyed asynchronously.
2331	warn "begin emergency player save\n";	3650	warn "emergency_perl_save: begin player save\n";
2332	for my $login (keys %cf::PLAYER) {	3651	for my $login (keys %cf::PLAYER) {
2333	my $pl = $cf::PLAYER{$login} or next;	3652	my $pl = $cf::PLAYER{$login} or next;
2334	$pl->valid or next;	3653	$pl->valid or next;
		3654	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2335	$pl->save;	3655	$pl->save;
2336	}	3656	}
2337	warn "end emergency player save\n";	3657	warn "emergency_perl_save: end player save\n";
2338		3658
2339	warn "begin emergency map save\n";	3659	warn "emergency_perl_save: begin map save\n";
2340	for my $path (keys %cf::MAP) {	3660	for my $path (keys %cf::MAP) {
2341	my $map = $cf::MAP{$path} or next;	3661	my $map = $cf::MAP{$path} or next;
2342	$map->valid or next;	3662	$map->valid or next;
2343	$map->save;	3663	$map->save;
2344	}	3664	}
2345	warn "end emergency map save\n";	3665	warn "emergency_perl_save: end map save\n";
2346		3666
2347	warn "begin emergency database checkpoint\n";	3667	warn "emergency_perl_save: begin database checkpoint\n";
2348	BDB::db_env_txn_checkpoint $DB_ENV;	3668	BDB::db_env_txn_checkpoint $DB_ENV;
2349	warn "end emergency database checkpoint\n";	3669	warn "emergency_perl_save: end database checkpoint\n";
		3670
		3671	warn "emergency_perl_save: begin write uuid\n";
		3672	write_uuid_sync 1;
		3673	warn "emergency_perl_save: end write uuid\n";
2350	};	3674	};
2351		3675
		3676	warn "emergency_perl_save: starting sync()\n";
		3677	IO::AIO::aio_sync sub {
		3678	warn "emergency_perl_save: finished sync()\n";
		3679	};
		3680
2352	warn "leave emergency perl save\n";	3681	warn "emergency_perl_save: leave\n";
2353	}	3682	}
2354		3683
2355	sub post_cleanup {	3684	sub post_cleanup {
2356	my ($make_core) = @_;	3685	my ($make_core) = @_;
2357		3686
2358	warn Carp::longmess "post_cleanup backtrace"	3687	warn Carp::longmess "post_cleanup backtrace"
2359	if $make_core;	3688	if $make_core;
2360	}
2361		3689
		3690	my $fh = pidfile;
		3691	unlink $PIDFILE if <$fh> == $$;
		3692	}
		3693
		3694	# a safer delete_package, copied from Symbol
		3695	sub clear_package($) {
		3696	my $pkg = shift;
		3697
		3698	# expand to full symbol table name if needed
		3699	unless ($pkg =~ /^main::.*::$/) {
		3700	$pkg = "main$pkg" if $pkg =~ /^::/;
		3701	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3702	$pkg .= '::' unless $pkg =~ /::$/;
		3703	}
		3704
		3705	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3706	my $stem_symtab = *{$stem}{HASH};
		3707
		3708	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3709	or return;
		3710
		3711	# clear all symbols
		3712	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3713	for my $name (keys %$leaf_symtab) {
		3714	_gv_clear *{"$pkg$name"};
		3715	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3716	}
		3717	warn "cleared package $pkg\n";#d#
		3718	}
		3719
2362	sub reload() {	3720	sub do_reload_perl() {
2363	# can/must only be called in main	3721	# can/must only be called in main
2364	if ($Coro::current != $Coro::main) {	3722	if ($Coro::current != $Coro::main) {
2365	warn "can only reload from main coroutine";	3723	warn "can only reload from main coroutine";
2366	return;	3724	return;
2367	}	3725	}
2368		3726
		3727	return if $RELOAD++;
		3728
		3729	my $t1 = EV::time;
		3730
		3731	while ($RELOAD) {
2369	warn "reloading...";	3732	warn "reloading...";
2370		3733
2371	warn "entering sync_job";	3734	warn "entering sync_job";
2372		3735
2373	cf::sync_job {	3736	cf::sync_job {
2374	cf::write_runtime; # external watchdog should not bark	3737	cf::write_runtime_sync; # external watchdog should not bark
2375	cf::emergency_save;	3738	cf::emergency_save;
2376	cf::write_runtime; # external watchdog should not bark	3739	cf::write_runtime_sync; # external watchdog should not bark
2377		3740
2378	warn "syncing database to disk";	3741	warn "syncing database to disk";
2379	BDB::db_env_txn_checkpoint $DB_ENV;	3742	BDB::db_env_txn_checkpoint $DB_ENV;
2380		3743
2381	# if anything goes wrong in here, we should simply crash as we already saved	3744	# if anything goes wrong in here, we should simply crash as we already saved
2382		3745
2383	warn "cancelling all WF_AUTOCANCEL watchers";
2384	for (Event::all_watchers) {
2385	$_->cancel if $_->data & WF_AUTOCANCEL;
2386	}
2387
2388	warn "flushing outstanding aio requests";	3746	warn "flushing outstanding aio requests";
2389	for (;;) {
2390	BDB::flush;
2391	IO::AIO::flush;
2392	Coro::cede;
2393	last unless IO::AIO::nreqs || BDB::nreqs;	3747	while (IO::AIO::nreqs || BDB::nreqs) {
2394	warn "iterate...";	3748	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2395	}
2396
2397	warn "cancelling all extension coros";
2398	$_->cancel for values %EXT_CORO;
2399	%EXT_CORO = ();
2400
2401	warn "removing commands";
2402	%COMMAND = ();
2403
2404	warn "removing ext commands";
2405	%EXTCMD = ();
2406
2407	warn "unloading/nuking all extensions";
2408	for my $pkg (@EXTS) {
2409	warn "... unloading $pkg";
2410
2411	if (my $cb = $pkg->can ("unload")) {
2412	eval {
2413	$cb->($pkg);
2414	1
2415	} or warn "$pkg unloaded, but with errors: $@";
2416	}	3749	}
2417		3750
2418	warn "... nuking $pkg";	3751	warn "cancelling all extension coros";
2419	Symbol::delete_package $pkg;	3752	$_->cancel for values %EXT_CORO;
2420	}	3753	%EXT_CORO = ();
2421		3754
2422	warn "unloading all perl modules loaded from $LIBDIR";	3755	warn "removing commands";
2423	while (my ($k, $v) = each %INC) {	3756	%COMMAND = ();
2424	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2425		3757
		3758	warn "removing ext/exti commands";
		3759	%EXTCMD = ();
		3760	%EXTICMD = ();
		3761
		3762	warn "unloading/nuking all extensions";
		3763	for my $pkg (@EXTS) {
2426	warn "... unloading $k";	3764	warn "... unloading $pkg";
2427	delete $INC{$k};
2428		3765
2429	$k =~ s/\.pm$//;
2430	$k =~ s/\//::/g;
2431
2432	if (my $cb = $k->can ("unload_module")) {	3766	if (my $cb = $pkg->can ("unload")) {
		3767	eval {
2433	$cb->();	3768	$cb->($pkg);
		3769	1
		3770	} or warn "$pkg unloaded, but with errors: $@";
		3771	}
		3772
		3773	warn "... clearing $pkg";
		3774	clear_package $pkg;
2434	}	3775	}
2435		3776
2436	Symbol::delete_package $k;	3777	warn "unloading all perl modules loaded from $LIBDIR";
		3778	while (my ($k, $v) = each %INC) {
		3779	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3780
		3781	warn "... unloading $k";
		3782	delete $INC{$k};
		3783
		3784	$k =~ s/\.pm$//;
		3785	$k =~ s/\//::/g;
		3786
		3787	if (my $cb = $k->can ("unload_module")) {
		3788	$cb->();
		3789	}
		3790
		3791	clear_package $k;
2437	}	3792	}
2438		3793
2439	warn "getting rid of safe::, as good as possible";	3794	warn "getting rid of safe::, as good as possible";
2440	Symbol::delete_package "safe::$_"	3795	clear_package "safe::$_"
2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3796	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2442		3797
2443	warn "unloading cf.pm \"a bit\"";	3798	warn "unloading cf.pm \"a bit\"";
2444	delete $INC{"cf.pm"};	3799	delete $INC{"cf.pm"};
		3800	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2445		3801
2446	# don't, removes xs symbols, too,	3802	# don't, removes xs symbols, too,
2447	# and global variables created in xs	3803	# and global variables created in xs
2448	#Symbol::delete_package __PACKAGE__;	3804	#clear_package __PACKAGE__;
2449		3805
2450	warn "unload completed, starting to reload now";	3806	warn "unload completed, starting to reload now";
2451		3807
2452	warn "reloading cf.pm";	3808	warn "reloading cf.pm";
2453	require cf;	3809	require cf;
2454	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3810	cf::_connect_to_perl_1;
2455		3811
2456	warn "loading config and database again";	3812	warn "loading config and database again";
2457	cf::cfg_load;	3813	cf::reload_config;
2458		3814
2459	warn "loading extensions";	3815	warn "loading extensions";
2460	cf::load_extensions;	3816	cf::load_extensions;
2461		3817
		3818	if ($REATTACH_ON_RELOAD) {
2462	warn "reattaching attachments to objects/players";	3819	warn "reattaching attachments to objects/players";
2463	_global_reattach;	3820	_global_reattach; # objects, sockets
2464	warn "reattaching attachments to maps";	3821	warn "reattaching attachments to maps";
2465	reattach $_ for values %MAP;	3822	reattach $_ for values %MAP;
		3823	warn "reattaching attachments to players";
		3824	reattach $_ for values %PLAYER;
		3825	}
2466		3826
2467	warn "loading reloadable resources";	3827	warn "running post_init jobs";
2468	init_resources;	3828	(pop @POST_INIT)->(1) while @POST_INIT;
2469		3829
2470	warn "leaving sync_job";	3830	warn "leaving sync_job";
2471		3831
2472	1	3832	1
2473	} or do {	3833	} or do {
2474	warn $@;	3834	warn $@;
2475	warn "error while reloading, exiting.";	3835	cf::cleanup "error while reloading, exiting.";
2476	exit 1;	3836	};
		3837
		3838	warn "reloaded";
		3839	--$RELOAD;
		3840	}
		3841
		3842	$t1 = EV::time - $t1;
		3843	warn "reload completed in ${t1}s\n";
		3844	};
		3845
		3846	our $RELOAD_WATCHER; # used only during reload
		3847
		3848	sub reload_perl() {
		3849	# doing reload synchronously and two reloads happen back-to-back,
		3850	# coro crashes during coro_state_free->destroy here.
		3851
		3852	$RELOAD_WATCHER ||= cf::async {
		3853	Coro::AIO::aio_wait cache_extensions;
		3854
		3855	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3856	do_reload_perl;
		3857	undef $RELOAD_WATCHER;
		3858	};
2477	};	3859	};
2478		3860	}
2479	warn "reloaded";
2480	};
2481
2482	our $RELOAD_WATCHER; # used only during reload
2483		3861
2484	register_command "reload" => sub {	3862	register_command "reload" => sub {
2485	my ($who, $arg) = @_;	3863	my ($who, $arg) = @_;
2486		3864
2487	if ($who->flag (FLAG_WIZ)) {	3865	if ($who->flag (FLAG_WIZ)) {
2488	$who->message ("reloading server.");	3866	$who->message ("reloading server.");
2489		3867	async {
2490	# doing reload synchronously and two reloads happen back-to-back,	3868	$Coro::current->{desc} = "perl_reload";
2491	# coro crashes during coro_state_free->destroy here.
2492
2493	$RELOAD_WATCHER ||= Event->timer (
2494	reentrant => 0,
2495	after => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => sub {
2498	reload;	3869	reload_perl;
2499	undef $RELOAD_WATCHER;
2500	},
2501	);	3870	};
2502	}	3871	}
2503	};	3872	};
2504		3873
2505	unshift @INC, $LIBDIR;	3874	unshift @INC, $LIBDIR;
2506		3875
2507	my $bug_warning = 0;	3876	my $bug_warning = 0;
2508		3877
2509	$TICK_WATCHER = Event->timer (	3878	our @WAIT_FOR_TICK;
2510	reentrant => 0,	3879	our @WAIT_FOR_TICK_BEGIN;
2511	parked => 1,	3880
2512	prio => 0,	3881	sub wait_for_tick {
2513	at => $NEXT_TICK || $TICK,	3882	return if tick_inhibit || $Coro::current == $Coro::main;
2514	data => WF_AUTOCANCEL,	3883
2515	cb => sub {	3884	my $signal = new Coro::Signal;
		3885	push @WAIT_FOR_TICK, $signal;
		3886	$signal->wait;
		3887	}
		3888
		3889	sub wait_for_tick_begin {
		3890	return if tick_inhibit || $Coro::current == $Coro::main;
		3891
		3892	my $signal = new Coro::Signal;
		3893	push @WAIT_FOR_TICK_BEGIN, $signal;
		3894	$signal->wait;
		3895	}
		3896
		3897	sub tick {
2516	if ($Coro::current != $Coro::main) {	3898	if ($Coro::current != $Coro::main) {
2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3899	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2518	unless ++$bug_warning > 10;	3900	unless ++$bug_warning > 10;
2519	return;	3901	return;
2520	}	3902	}
2521		3903
2522	$NOW = Event::time;
2523
2524	cf::server_tick; # one server iteration	3904	cf::server_tick; # one server iteration
2525	$RUNTIME += $TICK;
2526	$NEXT_TICK += $TICK;
2527		3905
2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3906	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2529	$NEXT_RUNTIME_WRITE = $NOW + 10;	3907	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2530	Coro::async_pool {	3908	Coro::async_pool {
		3909	$Coro::current->{desc} = "runtime saver";
2531	write_runtime	3910	write_runtime_sync
2532	or warn "ERROR: unable to write runtime file: $!";	3911	or warn "ERROR: unable to write runtime file: $!";
2533	};
2534	}	3912	};
2535
2536	$WAIT_FOR_TICK->broadcast;
2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2538
2539	# my $AFTER = Event::time;
2540	# warn $AFTER - $NOW;#d#
2541
2542	# if we are delayed by four ticks or more, skip them all
2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2544
2545	$TICK_WATCHER->at ($NEXT_TICK);
2546	$TICK_WATCHER->start;
2547	},	3913	}
2548	);	3914
		3915	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3916	$sig->send;
		3917	}
		3918	while (my $sig = shift @WAIT_FOR_TICK) {
		3919	$sig->send;
		3920	}
		3921
		3922	$LOAD = ($NOW - $TICK_START) / $TICK;
		3923	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3924
		3925	if (0) {
		3926	if ($NEXT_TICK) {
		3927	my $jitter = $TICK_START - $NEXT_TICK;
		3928	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3929	warn "jitter $JITTER\n";#d#
		3930	}
		3931	}
		3932	}
2549		3933
2550	{	3934	{
2551	BDB::max_poll_time $TICK * 0.1;	3935	# configure BDB
2552	$BDB_POLL_WATCHER = Event->io (	3936
2553	reentrant => 0,
2554	fd => BDB::poll_fileno,
2555	poll => 'r',
2556	prio => 0,
2557	data => WF_AUTOCANCEL,
2558	cb => \&BDB::poll_cb,
2559	);
2560	BDB::min_parallel 8;	3937	BDB::min_parallel 8;
2561		3938	BDB::max_poll_reqs $TICK * 0.1;
2562	BDB::set_sync_prepare {	3939	$AnyEvent::BDB::WATCHER->priority (1);
2563	my $status;
2564	my $current = $Coro::current;
2565	(
2566	sub {
2567	$status = $!;
2568	$current->ready; undef $current;
2569	},
2570	sub {
2571	Coro::schedule while defined $current;
2572	$! = $status;
2573	},
2574	)
2575	};
2576		3940
2577	unless ($DB_ENV) {	3941	unless ($DB_ENV) {
2578	$DB_ENV = BDB::db_env_create;	3942	$DB_ENV = BDB::db_env_create;
		3943	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3944	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3945	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3946	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3947	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2579		3948
2580	cf::sync_job {	3949	cf::sync_job {
2581	eval {	3950	eval {
2582	BDB::db_env_open	3951	BDB::db_env_open
2583	$DB_ENV,	3952	$DB_ENV,
2584	$BDB_ENV_DIR,	3953	$BDBDIR,
2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3954	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3955	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2587	0666;	3956	0666;
2588		3957
2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3958	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2590
2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2592	$DB_ENV->set_lk_detect;
2593	};	3959	};
2594		3960
2595	cf::cleanup "db_env_open(db): $@" if $@;	3961	cf::cleanup "db_env_open(db): $@" if $@;
2596	};	3962	};
2597	}	3963	}
		3964
		3965	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3966	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3967	};
		3968	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3969	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3970	};
		3971	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3972	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3973	};
2598	}	3974	}
2599		3975
2600	{	3976	{
		3977	# configure IO::AIO
		3978
2601	IO::AIO::min_parallel 8;	3979	IO::AIO::min_parallel 8;
2602
2603	undef $Coro::AIO::WATCHER;
2604	IO::AIO::max_poll_time $TICK * 0.1;	3980	IO::AIO::max_poll_time $TICK * 0.1;
2605	$AIO_POLL_WATCHER = Event->io (	3981	undef $AnyEvent::AIO::WATCHER;
2606	reentrant => 0,
2607	data => WF_AUTOCANCEL,
2608	fd => IO::AIO::poll_fileno,
2609	poll => 'r',
2610	prio => 6,
2611	cb => \&IO::AIO::poll_cb,
2612	);
2613	}	3982	}
		3983
		3984	my $_log_backtrace;
		3985
		3986	sub _log_backtrace {
		3987	my ($msg, @addr) = @_;
		3988
		3989	$msg =~ s/\n//;
		3990
		3991	# limit the # of concurrent backtraces
		3992	if ($_log_backtrace < 2) {
		3993	++$_log_backtrace;
		3994	my $perl_bt = Carp::longmess $msg;
		3995	async {
		3996	$Coro::current->{desc} = "abt $msg";
		3997
		3998	my @bt = fork_call {
		3999	@addr = map { sprintf "%x", $_ } @addr;
		4000	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4001	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4002	or die "addr2line: $!";
		4003
		4004	my @funcs;
		4005	my @res = <$fh>;
		4006	chomp for @res;
		4007	while (@res) {
		4008	my ($func, $line) = splice @res, 0, 2, ();
		4009	push @funcs, "[$func] $line";
		4010	}
		4011
		4012	@funcs
		4013	};
		4014
		4015	LOG llevInfo, "[ABT] $perl_bt\n";
		4016	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4017	LOG llevInfo, "[ABT] $_\n" for @bt;
		4018	--$_log_backtrace;
		4019	};
		4020	} else {
		4021	LOG llevInfo, "[ABT] $msg\n";
		4022	LOG llevInfo, "[ABT] [suppressed]\n";
		4023	}
		4024	}
		4025
		4026	# load additional modules
		4027	require "cf/$_.pm" for @EXTRA_MODULES;
		4028	cf::_connect_to_perl_2;
2614		4029
2615	END { cf::emergency_save }	4030	END { cf::emergency_save }
2616		4031
2617	1	4032	1
2618		4033

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