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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.245 by root, Tue Apr 17 10:06:33 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;
9	use Event;	32	use EV;
10	use Opcode;	33	use Opcode;
11	use Safe;	34	use Safe;
12	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
13		37
		38	use Guard ();
14	use Coro 3.61 ();	39	use Coro ();
15	use Coro::State;	40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
16	use Coro::Event;	43	use Coro::AnyEvent;
17	use Coro::Timer;	44	use Coro::Timer;
18	use Coro::Signal;	45	use Coro::Signal;
19	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
20	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
21	use Coro::Storable;	51	use Coro::Storable;
		52	use Coro::Util ();
22		53
		54	use JSON::XS 2.01 ();
23	use BDB ();	55	use BDB ();
24	use Data::Dumper;	56	use Data::Dumper;
25	use Digest::MD5;	57	use Digest::MD5;
26	use Fcntl;	58	use Fcntl;
27	use YAML::Syck ();	59	use YAML::XS ();
28	use IO::AIO 2.32 ();	60	use IO::AIO ();
29	use Time::HiRes;	61	use Time::HiRes;
30	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
31		66
32	# configure various modules to our taste	67	# configure various modules to our taste
33	#	68	#
34	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
36	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
37		77
38	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
39		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44		80
45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
46		82
47	our %COMMAND = ();	83	our %COMMAND = ();
48	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
49		85
50	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
54		91
55	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
56	our @EVENT;	93	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
		96
		97	our $CONFDIR = confdir;
		98	our $DATADIR = datadir;
		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;
58		112
59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	115	our $NEXT_TICK;
64	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
66		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
67	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
69		124
70	our %CFG;	125	our %CFG;
71		126
72	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
74		130
75	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		134
81	# 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 ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		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 $REALLY_UNLOOP; # never set to true, please :)
		147
84	binmode STDOUT;	148	binmode STDOUT;
85	binmode STDERR;	149	binmode STDERR;
86		150
87	# read virtual server time, if available	151	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
89	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
90	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
91	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
92	}	156	}
93		157
94	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
95	mkdir cf::localdir . "/" . cf::playerdir;	159
96	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
97	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		162
101	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
102		164
103	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::"} };
104		177
105	#############################################################################	178	#############################################################################
106		179
107	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
108		181
…		…
115	=item $cf::RUNTIME	188	=item $cf::RUNTIME
116		189
117	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
118	every server tick.	191	every server tick.
119		192
120	=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
121		196
122	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
123	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.
124		201
125	=item $cf::NOW	202	=item $cf::NOW
126		203
127	The time of the last (current) server tick.	204	The time of the last (current) server tick.
128		205
129	=item $cf::TICK	206	=item $cf::TICK
130		207
131	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
132		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
133	=item %cf::CFG	220	=item %cf::CFG
134		221
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
136	from wherever your confdir points to.	223	from wherever your confdir points to.
137		224
138	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
139		226
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	228	returns directly I<after> the tick processing (and consequently, can only wake one process
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		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.
		242
144	=back	243	=back
145		244
146	=cut	245	=cut
147		246
148	BEGIN {	247	$Coro::State::WARNHOOK = sub {
149	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	248	my $msg = join "", @_;
151	utf8::encode $msg;
152		249
153	$msg .= "\n"	250	$msg .= "\n"
154	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
155		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
156	LOG llevError, $msg;	255	LOG llevError, $msg;
157	};	256	};
158	}	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	};
159		271
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@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';
165	@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)
166		279
167	# 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
168	# within the Safe compartment.	281	# within the Safe compartment.
169	for my $pkg (qw(	282	for my $pkg (qw(
170	cf::global cf::attachable	283	cf::global cf::attachable
171	cf::object cf::object::player	284	cf::object cf::object::player
172	cf::client cf::player	285	cf::client cf::player
173	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
174	cf::map cf::party cf::region	288	cf::party cf::region
175	)) {	289	)) {
176	no strict 'refs';
177	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
178	}	291	}
179		292
180	$Event::DIED = sub {	293	$EV::DIED = sub {
181	warn "error in event callback: @_";	294	warn "error in event callback: @_";
182	};	295	};
		296
		297	#############################################################################
183		298
184	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
185		300
186	=over 4	301	=over 4
187		302
…		…
206	$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;
207	$d	322	$d
208	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
209	}	324	}
210		325
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
214		327
215	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
216		329
217	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
218		331
219	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
220		333
		334	=cut
		335
		336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		337
		338	sub encode_json($) { $json_coder->encode ($_[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;
		353	}
		354
221	=item cf::lock_wait $string	355	=item cf::lock_wait $string
222		356
223	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
224		358
225	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
226		360
227	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
229	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
230	returned.	364	returned.
231		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
232	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
234		371
235	=cut	372	=item $locked = cf::lock_active $string
236		373
237	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
238		379
239	sub lock_wait($) {	380	sub lock_wait($) {
240	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	382	}
248		383
249	sub lock_acquire($) {	384	sub lock_acquire($) {
250	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
251		387
252	# wait, to be sure we are not locked	388	sub lock_active($) {
253	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	390	}
262		391
263	sub freeze_mainloop {	392	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
265		394
266	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	396	}
		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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
268	};	456	}
269	$TICK_WATCHER->stop;	457	};
270	$guard	458
		459	sub get_slot($;$$) {
		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	$sig->wait;
271	}	471	}
272		472
273	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
274		474
275	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		480
281	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
282		482
283	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
284		484
285	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
288		489
289	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
292	fast or be very important.	493	fast or be very important.
…		…
295		496
296	sub sync_job(&) {	497	sub sync_job(&) {
297	my ($job) = @_;	498	my ($job) = @_;
298		499
299	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
300	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
302		505
303	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	507
305	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
306		509
307	my $busy = 1;	510	my $busy = 1;
308	my @res;	511	my @res;
309		512
310	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	515	@res = eval { $job->() };
312	warn $@ if $@;	516	warn $@ if $@;
313	undef $busy;	517	undef $busy;
314	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
315		519
316	while ($busy) {	520	while ($busy) {
317	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
318	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
319		531
320	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
321	} else {	533	} else {
322	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
323		535
…		…
343	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
344		556
345	$coro	557	$coro
346	}	558	}
347		559
348	sub write_runtime {	560	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		561
351	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.
352		566
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
354	or return;
355		568
356	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		571
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
361	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
362		575
363	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
364	aio_fsync $fh	577	reset_signals;
365	and return;	578	&$cb
		579	}, @args;
366		580
367	close $fh	581	wantarray ? @res : $res[-1]
368	or return;	582	}
369		583
370	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
371	and return;
372		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		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($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
373	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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"
374	}	736	}
375		737
376	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
377		739
378	Log a datalog packet of the given type with the given key-value pairs.	740	Log a datalog packet of the given type with the given key-value pairs.
…		…
390		752
391	#############################################################################	753	#############################################################################
392		754
393	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
394		756
395	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
396	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")
397	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
398		760
399	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>
400	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
401	crossfire+).	763	Deliantra).
402		764
403	=over 4	765	=over 4
404		766
405	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
406		768
…		…
450	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
451		813
452	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
454		816
455	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
456	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.
457		819
458	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
459		821
460	=over 4	822	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
570		932
571	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		937
576	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	939	my $pkg = shift @arg;
578		940
579	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
609	}	971	}
610		972
611	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
612	} else {	974	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	976	}
615		977
616	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
617	}	979	}
618		980
…		…
620	if (ref $_[0]) {	982	if (ref $_[0]) {
621	_object_attach @_;	983	_object_attach @_;
622	} else {	984	} else {
623	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
624	}	986	}
		987	_recalc_want;
625	};	988	};
626		989
627	# all those should be optimised	990	# all those should be optimised
628	sub cf::attachable::detach {	991	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
633	reattach ($obj);	996	reattach ($obj);
634	} else {	997	} else {
635	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
636	}	999	}
		1000	_recalc_want;
637	};	1001	};
638		1002
639	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
641		1005
…		…
656	";	1020	";
657	die if $@;	1021	die if $@;
658	}	1022	}
659		1023
660	our $override;	1024	our $override;
661	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?
662		1026
663	sub override {	1027	sub override {
664	$override = 1;	1028	$override = 1;
665	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
666	}	1030	}
667		1031
668	sub do_invoke {	1032	sub do_invoke {
669	my $event = shift;	1033	my $event = shift;
670	my $callbacks = shift;	1034	my $callbacks = shift;
671		1035
672	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
673		1037
674	local $override;	1038	local $override;
675		1039
676	for (@$callbacks) {	1040	for (@$callbacks) {
677	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
686	}	1050	}
687		1051
688	0	1052	0
689	}	1053	}
690		1054
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1056
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1058
695	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
696		1060
697	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
698	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
699	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1064
701	=back	1065	=back
702		1066
703	=cut	1067	=cut
704		1068
705	#############################################################################	1069	#############################################################################
706	# 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, $ob2
		1112	}
707		1113
708	sub reattach {	1114	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1116	my ($obj) = @_;
711		1117
		1118	# no longer needed after getting rid of delete_package?
712	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
713		1120
714	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
715		1122
716	@$registry = ();	1123	@$registry = ();
717		1124
…		…
732	cf::attachable->attach (	1139	cf::attachable->attach (
733	prio => -1000000,	1140	prio => -1000000,
734	on_instantiate => sub {	1141	on_instantiate => sub {
735	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
736		1143
737	$data = from_json $data;	1144	$data = decode_json $data;
738		1145
739	for (@$data) {	1146	for (@$data) {
740	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
741		1148
742	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1165	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
760		1167
761	sync_job {	1168	sync_job {
762	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
765		1173
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	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	}
770	close $fh;	1181	aio_close $fh;
771		1182
772	if (@$objs) {	1183	if (@$objs) {
773	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) {
774	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
777	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	}
778	close $fh;	1192	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
780	}	1194	}
781	} else {	1195	} else {
782	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
783	}	1197	}
784		1198
785	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1203	} else {
787	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
788	}	1205	}
789	} else {	1206	} else {
790	aio_unlink $filename;	1207	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
792	}	1209	}
793	}	1210	};
794	}	1211	}
795		1212
796	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
798		1215
…		…
810	or return;	1227	or return;
811		1228
812	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
814	or return;	1231	or return;
		1232
815	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
816	}	1235	}
817		1236
		1237	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
820	return ($data, $av);	1241	($data, $av)
821	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
822		1249
823	#############################################################################	1250	#############################################################################
824	# command handling &c	1251	# command handling &c
825		1252
826	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1267	}
841		1268
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1270
844	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.
845		1276
846	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
847	called.	1278	called.
848		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
849	=cut	1291	=cut
850		1292
851	sub register_extcmd {	1293	sub register_extcmd {
852	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
853		1295
854	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
855	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
856		1306
857	cf::player->attach (	1307	cf::player->attach (
858	on_command => sub {	1308	on_command => sub {
859	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
860		1310
…		…
868	cf::override;	1318	cf::override;
869	},	1319	},
870	on_extcmd => sub {	1320	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
872		1322
873	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1324
875	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
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
881	} else {	1340	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1342	}
884		1343
885	cf::override;	1344	cf::override;
886	},	1345	},
887	);	1346	);
888		1347
		1348	# "readahead" all extensions
889	sub load_extension {	1349	sub cache_extensions {
890	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
891		1351
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}	1355	}
917	die $@;
918	}	1356	};
919		1357
920	push @EXTS, $pkg;	1358	$grp
921	}	1359	}
922		1360
923	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
924	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1366	next unless -r $path;
926	eval {	1367
927	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	$progress = 1;
928	1	1424	}
929	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
930	}	1430	};
931	}	1431	}
932		1432
933	#############################################################################	1433	#############################################################################
934		1434
		1435	=back
		1436
935	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
936		1438
937	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
938		1440
939	=cut	1441	=cut
940		1442
941	package cf::player;	1443	package cf::player;
942		1444
…		…
944		1446
945	=head3 cf::player	1447	=head3 cf::player
946		1448
947	=over 4	1449	=over 4
948		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
949	=item cf::player::find $login	1465	=item cf::player::find $login
950		1466
951	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
952		1468
953	=cut	1469	=cut
954		1470
955	sub playerdir($) {	1471	sub playerdir($) {
956	cf::localdir	1472	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1474	}
962		1475
963	sub path($) {	1476	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
974		1487
975	sub exists($) {	1488	sub exists($) {
976	my ($login) = @_;	1489	my ($login) = @_;
977		1490
978	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
980	}	1493	}
981		1494
982	sub find($) {	1495	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1497	my $login = $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
995		1508
996	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
997	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;
998	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
999	}	1518	}
1000	}	1519	}
1001	}	1520	}
1002		1521
…		…
1011	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1012		1531
1013	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1015		1534
		1535	cf::get_slot 0.01;
		1536
1016	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1017	Coro::cede;	1538	cf::cede_to_tick;
1018	}	1539	}
1019		1540
1020	sub new($) {	1541	sub new($) {
1021	my ($login) = @_;	1542	my ($login) = @_;
1022		1543
…		…
1028	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1029		1550
1030	$self	1551	$self
1031	}	1552	}
1032		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
1033	=item $pl->quit_character	1564	=item $pl->quit_character
1034		1565
1035	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1036	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1037		1568
…		…
1041	my ($pl) = @_;	1572	my ($pl) = @_;
1042		1573
1043	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1044		1575
1045	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1046	$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
1047		1578
1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1049	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1051	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1052		1585
1053	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1054	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1084	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1085		1618
1086	=cut	1619	=cut
1087		1620
1088	sub list_logins {	1621	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1623	or return [];
1091		1624
1092	my @logins;	1625	my @logins;
1093		1626
1094	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") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1098		1637
1099	utf8::decode $login;	1638	utf8::decode $login;
1100	push @logins, $login;	1639	push @logins, $login;
1101	}	1640	}
1102		1641
…		…
1129	}	1668	}
1130		1669
1131	\@paths	1670	\@paths
1132	}	1671	}
1133		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1134	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1135		1678
1136	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1137		1680
1138	=cut	1681	=cut
1139		1682
1140	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1142		1685
1143	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1687	}
1147		1688
1148	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1149		1690
1150	Sends an ext event to the client.	1691	Sends an ext event to the client.
1151		1692
1152	=cut	1693	=cut
1153		1694
1154	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1156		1697
1157	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1158	}	1699	}
1159		1700
1160	=head3 cf::region	1701	=head3 cf::region
1161		1702
1162	=over 4	1703	=over 4
…		…
1165		1706
1166	package cf::region;	1707	package cf::region;
1167		1708
1168	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1169		1710
1170	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1171		1712
1172	=cut	1713	=cut
1173		1714
1174	sub find_by_path($) {	1715	sub find_by_path($) {
1175	my ($path) = @_;	1716	my ($path) = @_;
1176		1717
1177	my ($match, $specificity);	1718	my ($match, $specificity);
1178		1719
1179	for my $region (list) {	1720	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1183	}	1724	}
1184	}	1725	}
1185		1726
…		…
1206	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1208		1749
1209	sub generate_random_map {	1750	sub generate_random_map {
1210	my ($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
1211	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1212	$self->_create_random_map (	1756	$self->_create_random_map (
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1249	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1250		1794
1251	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1252	local $self->{path};	1796	local $self->{path};
1253	local $self->{load_path};	1797	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1798
1257	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1258	}	1800	}
1259		1801
1260	sub normalise {	1802	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1308	return $self;	1850	return $self;
1309	}	1851	}
1310	}	1852	}
1311		1853
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1855	()
1314	}	1856	}
1315		1857
1316	sub init {	1858	sub init {
1317	my ($self) = @_;	1859	my ($self) = @_;
…		…
1332		1874
1333	# the original (read-only) location	1875	# the original (read-only) location
1334	sub load_path {	1876	sub load_path {
1335	my ($self) = @_;	1877	my ($self) = @_;
1336		1878
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1338	}	1880	}
1339		1881
1340	# the temporary/swap location	1882	# the temporary/swap location
1341	sub save_path {	1883	sub save_path {
1342	my ($self) = @_;	1884	my ($self) = @_;
1343		1885
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1346	}	1888	}
1347		1889
1348	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1349	sub uniq_path {	1891	sub uniq_path {
1350	my ($self) = @_;	1892	my ($self) = @_;
1351		1893
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1354	}	1896	}
1355		1897
1356	# and all this just because we cannot iterate over	1898	sub decay_objects {
1357	# all maps in C++...
1358	sub change_all_map_light {
1359	my ($change) = @_;	1899	my ($self) = @_;
1360		1900
1361	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1362	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1363	}	1904	}
1364		1905
1365	sub unlink_save {	1906	sub unlink_save {
1366	my ($self) = @_;	1907	my ($self) = @_;
1367		1908
…		…
1372		1913
1373	sub load_header_from($) {	1914	sub load_header_from($) {
1374	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1375		1916
1376	utf8::encode $path;	1917	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	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;
1382		1926
1383	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1384		1928
1385	1	1929	1
1386	}	1930	}
…		…
1425	$self->load_header_orig	1969	$self->load_header_orig
1426	or return;	1970	or return;
1427	$self->prepare_orig;	1971	$self->prepare_orig;
1428	}	1972	}
1429		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1430	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1978	unless $self->default_region;
1432		1979
1433	1	1980	1
1434	}	1981	}
…		…
1437	sub find {	1984	sub find {
1438	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1439		1986
1440	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1441		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1443		1991
1444	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";
1446	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1447	or return;	1994	or return;
1448		1995
1449	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1450		1997
1451	$map->load_header	1998	$map->load_header
1452	or return;	1999	or return;
1453		2000
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1457	$map->reset;	2006	$map->reset;
1458	undef $guard;
1459	return find $path;	2007	return find $path;
1460	}	2008	}
1461		2009
1462	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1463	}	2011	}
…		…
1470	my ($self) = @_;	2018	my ($self) = @_;
1471		2019
1472	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1473		2021
1474	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1476		2026
		2027	return unless $self->valid;
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1478		2029
1479	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1480		2031
1481	$self->alloc;	2032	$self->alloc;
1482		2033
1483	$self->pre_load;	2034	$self->pre_load;
1484	Coro::cede;	2035	cf::cede_to_tick;
1485		2036
1486	$self->_load_objects ($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)
1487	or return;	2040	or return;
1488		2041
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1490	if delete $self->{load_original};	2043	if delete $self->{load_original};
1491		2044
1492	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2046	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2049	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1497	}	2053	}
1498	}	2054	}
1499		2055
1500	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1501	# now do the right thing for maps	2059	# now do the right thing for maps
1502	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;
1510	$self->set_darkness_map;
1511	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2062	unless $self->difficulty;
1513	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1514	$self->activate;	2070	$self->activate;
1515	Coro::cede;	2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1516	}	2077	}
1517		2078
1518	$self->post_load;	2079	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	2080	}
1523		2081
1524	sub customise_for {	2082	sub customise_for {
1525	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1526		2084
1527	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2086	if $self->per_player;
1529		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1530	$self	2091	$self
1531	}	2092	}
1532		2093
1533	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {	2095	sub load_neighbours {
1535	my ($map) = @_;	2096	my ($map) = @_;
1536		2097
1537	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1538		2099
1539	for (0 .. 3) {	2100	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1541	or next;	2102	or next;
1542	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1543	or next;	2104	or next;
1544	$neigh->load;	2105	$neigh->load;
1545		2106
		2107	push @neigh,
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}	2110	}
1549		2111
1550	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1551	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1552	or next;	2115	or next;
1553	$neigh->load;	2116	$neigh->load;
1554	}	2117	}
1555	}	2118	}
1556		2119
…		…
1561	}	2124	}
1562		2125
1563	sub do_load_sync {	2126	sub do_load_sync {
1564	my ($map) = @_;	2127	my ($map) = @_;
1565		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1566	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1567	}	2133	}
1568		2134
1569	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1571		2137
1572	sub find_async {	2138	sub find_async {
1573	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1574		2140
1575	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1576		2142
1577	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1579	}	2145	}
1580		2146
1581	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1582	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1583	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2154	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2155	$map->load if $v;
		2156	}
1588		2157
1589	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1590	}	2159	}
1591	}	2160	}
1592	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1593	};	2162	};
1594	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1597	}	2166	}
1598		2167
1599	sub save {	2168	sub save {
1600	my ($self) = @_;	2169	my ($self) = @_;
1601		2170
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1603		2172
1604	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1605		2174
1606	return unless $self->dirty;	2175	return unless $self->dirty;
1607		2176
…		…
1613	return if $self->{deny_save};	2182	return if $self->{deny_save};
1614		2183
1615	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1616		2185
1617	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1619	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1620		2192
1621	if ($uniq) {	2193	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1624	} else {	2196	} else {
…		…
1630	my ($self) = @_;	2202	my ($self) = @_;
1631		2203
1632	# save first because save cedes	2204	# save first because save cedes
1633	$self->save;	2205	$self->save;
1634		2206
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2208
1637	return if $self->players;	2209	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1639	return if $self->{deny_save};	2211	return if $self->{deny_save};
1640		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1641	$self->clear;	2217	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2218	}
1644		2219
1645	sub reset_at {	2220	sub reset_at {
1646	my ($self) = @_;	2221	my ($self) = @_;
1647		2222
1648	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1651		2225
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2228
…		…
1665	my ($self) = @_;	2239	my ($self) = @_;
1666		2240
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2242
1669	return if $self->players;	2243	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2244
1672	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1673		2246
1674	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1675		2248
1676	# need to save uniques path	2249	# need to save uniques path
1677	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1681	if $uniq;	2254	if $uniq;
1682	}	2255	}
1683		2256
1684	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1685		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2261	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2262
1690	$self->unlink_save;	2263	$self->unlink_save;
1691	$self->destroy;	2264	$self->destroy;
1692	}	2265	}
1693		2266
1694	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1695		2268
1696	sub nuke {	2269	sub nuke {
1697	my ($self) = @_;	2270	my ($self) = @_;
1698		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1699	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1700		2276
1701	$self->unlink_save;	2277	$self->unlink_save;
1702		2278
1703	bless $self, "cf::map";	2279	bless $self, "cf::map";
1704	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2284
1709	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1710		2287
1711	$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	]
1712	}	2325	}
1713		2326
1714	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1715		2328
1716	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2330	instantiated unique items. May block.
1718		2331
1719	=cut	2332	=cut
1720		2333
1721	sub unique_maps() {	2334	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1723	or return;	2336	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2337	utf8::decode $_;
1729	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2340	? ()
1732	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2343	]
1734
1735	\@paths
1736	}	2344	}
1737		2345
1738	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	}
1739		2374
1740	=back	2375	=back
1741		2376
1742	=head3 cf::object	2377	=head3 cf::object
1743		2378
…		…
1747		2382
1748	=over 4	2383	=over 4
1749		2384
1750	=item $ob->inv_recursive	2385	=item $ob->inv_recursive
1751		2386
1752	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.
1753		2389
1754	=cut	2390	=cut
1755		2391
1756	sub inv_recursive_;	2392	sub inv_recursive_;
1757	sub inv_recursive_ {	2393	sub inv_recursive_ {
…		…
1760		2396
1761	sub inv_recursive {	2397	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2398	inv_recursive_ inv $_[0]
1763	}	2399	}
1764		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
1765	package cf;	2429	package cf;
1766		2430
1767	=back	2431	=back
1768		2432
1769	=head3 cf::object::player	2433	=head3 cf::object::player
…		…
1775	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>
1776	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
1777	dialogue with the given NPC character.	2441	dialogue with the given NPC character.
1778		2442
1779	=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	};
1780		2458
1781	# rough implementation of a future "reply" method that works	2459	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2460	# with dialog boxes.
1783	#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
1784	sub cf::object::player::reply($$$;$) {	2462	sub cf::object::player::reply($$$;$) {
…		…
1786		2464
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2465	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2466
1789	if ($self->{record_replies}) {	2467	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2468	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2469
1791	} 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 {
1792	$msg = $npc->name . " says: $msg" if $npc;	2478	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2479	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2480	}
1794	}	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 (@_);
1795	}	2492	}
1796		2493
1797	=item $player_object->may ("access")	2494	=item $player_object->may ("access")
1798		2495
1799	Returns wether the given player is authorized to access resource "access"	2496	Returns wether the given player is authorized to access resource "access"
…		…
1812		2509
1813	=item $player_object->enter_link	2510	=item $player_object->enter_link
1814		2511
1815	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}>).
1816		2513
1817	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.
1818	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.
1819		2518
1820	Will never block.	2519	Will never block.
1821		2520
1822	=item $player_object->leave_link ($map, $x, $y)	2521	=item $player_object->leave_link ($map, $x, $y)
1823		2522
…		…
1846	$self->deactivate_recursive;	2545	$self->deactivate_recursive;
1847		2546
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2547	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2548
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2549	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2550	if $self->map && $self->map->{path} ne "{link}";
1852		2551
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2552	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2553	}
1855		2554
1856	sub cf::object::player::leave_link {	2555	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2556	my ($self, $map, $x, $y) = @_;
		2557
		2558	return unless $self->contr->active;
1858		2559
1859	my $link_pos = delete $self->{_link_pos};	2560	my $link_pos = delete $self->{_link_pos};
1860		2561
1861	unless ($map) {	2562	unless ($map) {
1862	# restore original map position	2563	# restore original map position
…		…
1876	# use -1 or undef as default coordinates, not 0, 0	2577	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2578	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2579	if $x <=0 && $y <= 0;
1879		2580
1880	$map->load;	2581	$map->load;
1881	$map->load_diag;	2582	$map->load_neighbours;
1882		2583
1883	return unless $self->contr->active;	2584	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2585
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2586	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2587	$self->enter_map ($map, $x, $y);
1888	}
1889		2588
1890	cf::player->attach (	2589	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2590	$self->activate_recursive;
1892	my ($pl) = @_;	2591	}
1893		2592
1894	# abort map switching before logout	2593	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2594
1904	# try to abort aborted map switching on player login :)	2595	Moves the player to the given map-path and coordinates by first freezing
1905	# should happen only on crashes	2596	her, loading and preparing them map, calling the provided $check callback
1906	if ($pl->ob->{_link_pos}) {	2597	that has to return the map if sucecssful, and then unfreezes the player on
1907	$pl->ob->enter_link;	2598	the new (success) or old (failed) map position. In either case, $done will
1908	(async {	2599	be called at the end of this process.
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921		2600
1922	=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 >>.
1923		2603
1924	=cut	2604	=cut
		2605
		2606	our $GOTOGEN;
1925		2607
1926	sub cf::object::player::goto {	2608	sub cf::object::player::goto {
1927	my ($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;
1928		2613
1929	$self->enter_link;	2614	$self->enter_link;
1930		2615
1931	(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
1932	my $map = eval {	2638	my $map = eval {
1933	my $map = cf::map::find $path;	2639	my $map = defined $path ? cf::map::find $path : undef;
		2640
		2641	if ($map) {
1934	$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
1935	$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 $@;
1936	} or	2654	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2655
		2656	if ($gen == $self->{_goto_generation}) {
		2657	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2658	$self->leave_link ($map, $x, $y);
		2659	}
		2660
		2661	$done->() if $done;
1940	})->prio (1);	2662	})->prio (1);
1941	}	2663	}
1942		2664
1943	=item $player_object->enter_exit ($exit_object)	2665	=item $player_object->enter_exit ($exit_object)
1944		2666
…		…
1964	}	2686	}
1965		2687
1966	sub prepare_random_map {	2688	sub prepare_random_map {
1967	my ($exit) = @_;	2689	my ($exit) = @_;
1968		2690
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2691	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2692	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2693	# that depends on the exit object
1974		2694
1975	my $rmp = parse_random_map_params $exit->msg;	2695	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2697	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2698	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2699	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2700	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2701	$rmp->{origin_y} = $exit->y;
		2702
		2703	$exit->map->touch;
1982	}	2704	}
1983		2705
1984	$rmp->{random_seed} ||= $exit->random_seed;	2706	$rmp->{random_seed} ||= $exit->random_seed;
1985		2707
1986	my $data = cf::to_json $rmp;	2708	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2709	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2710	my $meta = "$RANDOMDIR/$md5.meta";
1989		2711
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2712	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2713	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2714	undef $fh;
1993	aio_rename "$meta~", $meta;	2715	aio_rename "$meta~", $meta;
1994		2716
		2717	my $slaying = "?random/$md5";
		2718
		2719	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2720	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2721	$exit->msg (undef);
		2722	}
1997	}	2723	}
1998	}	2724	}
1999		2725
2000	sub cf::object::player::enter_exit {	2726	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2727	my ($self, $exit) = @_;
2002		2728
2003	return unless $self->type == cf::PLAYER;	2729	return unless $self->type == cf::PLAYER;
2004		2730
2005	if ($exit->slaying eq "/!") {
2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
2007	# the problem is that $exit might not survive long enough
2008	# so it needs to be done right now, right here
2009	cf::sync_job { prepare_random_map $exit };
2010	}
2011
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;
2015
2016	$self->enter_link;	2731	$self->enter_link;
2017		2732
2018	(async {	2733	(async {
2019	$self->deactivate_recursive; # just to be sure	2734	$Coro::current->{desc} = "enter_exit";
		2735
2020	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
2021	$self->goto ($slaying, $hp, $sp);	2751	$self->goto ($map, $x, $y);
2022		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
2023	1;	2757	1
2024	}) {	2758	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	2759	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "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. "
2027	. "Please report this to the dungeon master!",	2761	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	2762	cf::NDI_UNIQUE | cf::NDI_RED);
2029		2763
2030	warn "ERROR in enter_exit: $@";	2764	warn "ERROR in enter_exit: $@";
…		…
2049		2783
2050	utf8::encode $text;	2784	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2785	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2786	}
2053		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
2054	=item $client->ext_event ($type, %msg)	2960	=item $client->ext_msg ($type, @msg)
2055		2961
2056	Sends an exti event to the client.	2962	Sends an ext event to the client.
2057		2963
2058	=cut	2964	=cut
2059		2965
2060	sub cf::client::ext_event($$%) {	2966	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	2967	my ($self, $type, @msg) = @_;
2062		2968
		2969	if ($self->extcmd == 2) {
		2970	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2971	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	2972	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	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	}
2065	}	2993	}
2066		2994
2067	=item $success = $client->query ($flags, "text", \&cb)	2995	=item $success = $client->query ($flags, "text", \&cb)
2068		2996
2069	Queues a query to the client, calling the given callback with	2997	Queues a query to the client, calling the given callback with
2070	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>,
2071	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>.
2072		3000
2073	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
2074	reliable at some point in the future.	3002	become reliable at some point in the future.
2075		3003
2076	=cut	3004	=cut
2077		3005
2078	sub cf::client::query {	3006	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	3007	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	3015	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3016	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		3017
2090	$self->send_packet ($self->{query_queue}[0][0])	3018	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	3019	if @{ $self->{query_queue} } == 1;
		3020
		3021	1
2092	}	3022	}
2093		3023
2094	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	},
2095	on_reply => sub {	3030	on_reply => sub {
2096	my ($ns, $msg) = @_;	3031	my ($ns, $msg) = @_;
2097		3032
2098	# this weird shuffling is so that direct followup queries	3033	# this weird shuffling is so that direct followup queries
2099	# get handled first	3034	# get handled first
…		…
2111	} else {	3046	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3048	}
2114	}	3049	}
2115	},	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	},
2116	);	3077	);
2117		3078
2118	=item $client->async (\&cb)	3079	=item $client->async (\&cb)
2119		3080
2120	Create a new coroutine, running the specified callback. The coroutine will	3081	Create a new coroutine, running the specified callback. The coroutine will
…		…
2161	our $safe = new Safe "safe";	3122	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3123	our $safe_hole = new Safe::Hole;
2163		3124
2164	$SIG{FPE} = 'IGNORE';	3125	$SIG{FPE} = 'IGNORE';
2165		3126
2166	$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	));
2167		3132
2168	# here we export the classes and methods available to script code	3133	# here we export the classes and methods available to script code
2169		3134
2170	=pod	3135	=pod
2171		3136
2172	The following functions and methods are available within a safe environment:	3137	The following functions and methods are available within a safe environment:
2173		3138
2174	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
2175	cf::object::player player	3144	cf::object::player
2176	cf::player peaceful	3145	player
2177	cf::map trigger	3146
		3147	cf::player
		3148	peaceful
		3149
		3150	cf::map
		3151	trigger
2178		3152
2179	=cut	3153	=cut
2180		3154
2181	for (	3155	for (
2182	["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)],
2183	["cf::object::player" => qw(player)],	3159	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3160	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3161	["cf::map" => qw(trigger)],
2186	) {	3162	) {
2187	no strict 'refs';	3163	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3164	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3165	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2206	my ($code, %vars) = @_;	3182	my ($code, %vars) = @_;
2207		3183
2208	my $qcode = $code;	3184	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3185	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3186	$qcode =~ s/\n/\\n/g;
		3187
		3188	%vars = (_dummy => 0) unless %vars;
2211		3189
2212	local $_;	3190	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;	3191	local @safe::cf::_safe_eval_args = values %vars;
2214		3192
2215	my $eval =	3193	my $eval =
…		…
2258	=back	3236	=back
2259		3237
2260	=cut	3238	=cut
2261		3239
2262	#############################################################################	3240	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333
2334	#############################################################################
2335	# the server's init and main functions	3241	# the server's init and main functions
2336		3242
2337	sub load_facedata {	3243	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	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;
2339		3251
2340	warn "loading facedata from $path\n";	3252	warn "loading facedata from $path\n";
2341		3253
2342	my $facedata;	3254	my $facedata;
2343	0 < aio_load $path, $facedata	3255	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3258	$facedata = Coro::Storable::thaw $facedata;
2347		3259
2348	$facedata->{version} == 2	3260	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3261	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		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
2351	{	3270	{
2352	my $faces = $facedata->{faceinfo};	3271	my $faces = $facedata->{faceinfo};
2353		3272
2354	while (my ($face, $info) = each %$faces) {	3273	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3274	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3275
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3276	cf::face::set_visibility $idx, $info->{visibility};
		3277	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3278	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3279	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2359	Coro::cede;	3280
		3281	cf::cede_to_tick;
2360	}	3282	}
2361		3283
2362	while (my ($face, $info) = each %$faces) {	3284	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3285	next unless $info->{smooth};
		3286
2364	my $idx = cf::face::find $face	3287	my $idx = cf::face::find $face
2365	or next;	3288	or next;
		3289
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3290	if (my $smooth = cf::face::find $info->{smooth}) {
		3291	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3292	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3293	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3294	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3295	}
2371	Coro::cede;	3296
		3297	cf::cede_to_tick;
2372	}	3298	}
2373	}	3299	}
2374		3300
2375	{	3301	{
2376	my $anims = $facedata->{animinfo};	3302	my $anims = $facedata->{animinfo};
2377		3303
2378	while (my ($anim, $info) = each %$anims) {	3304	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3305	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3306	cf::cede_to_tick;
2381	}	3307	}
2382		3308
2383	cf::anim::invalidate_all; # d'oh	3309	cf::anim::invalidate_all; # d'oh
2384	}	3310	}
2385		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
2386	1	3347	1
2387	}	3348	}
2388		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"
		3394	or die "unable to load regions file\n";
		3395
		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
2389	sub load_archetypes {	3407	sub reload_archetypes {
2390	load_archetype_file sprintf "%s/archetypes", cf::datadir; # remove when stable	3408	load_resource_file "$DATADIR/archetypes"
2391	load_archetype_file sprintf "%s/archetypes", cf::datadir	3409	or die "unable to load archetypes\n";
2392	}	3410	}
2393		3411
2394	sub load_treasures {	3412	sub reload_treasures {
2395	load_treasure_file sprintf "%s/treasures", cf::datadir	3413	load_resource_file "$DATADIR/treasures"
		3414	or die "unable to load treasurelists\n";
2396	}	3415	}
2397		3416
2398	sub reload_resources {	3417	sub reload_resources {
2399	warn "reloading resource files...\n";	3418	warn "reloading resource files...\n";
2400		3419
2401	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2402	or die "unable to load regions file\n";
2403	load_facedata	3420	reload_facedata;
2404	or die "unable to load facedata\n";
2405	load_archetypes	3421	reload_archetypes;
2406	or die "unable to load archetypes\n";	3422	reload_regions;
2407	load_treasures	3423	reload_treasures;
2408	or die "unable to load treasurelists\n";
2409		3424
2410	warn "finished reloading resource files\n";	3425	warn "finished reloading resource files\n";
2411	}	3426	}
2412		3427
2413	sub init {	3428	sub reload_config {
2414	reload_resources;	3429	warn "reloading config file...\n";
2415	}
2416		3430
2417	sub cfg_load {
2418	open my $fh, "<:utf8", cf::confdir . "/config"	3431	open my $fh, "<:utf8", "$CONFDIR/config"
2419	or return;	3432	or return;
2420		3433
2421	local $/;	3434	local $/;
2422	*CFG = YAML::Syck::Load <$fh>;	3435	*CFG = YAML::XS::Load scalar <$fh>;
2423		3436
2424	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3437	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2425		3438
2426	$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};
2427	$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};
…		…
2431	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3444	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2432	and die "WARNING: m(un)lockall failed: $!\n";	3445	and die "WARNING: m(un)lockall failed: $!\n";
2433	};	3446	};
2434	warn $@ if $@;	3447	warn $@ if $@;
2435	}	3448	}
		3449
		3450	warn "finished reloading resource files\n";
		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;
2436	}	3479	}
2437		3480
2438	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
2439	# we must not ever block the main coroutine	3496	# we must not ever block the main coroutine
2440	local $Coro::idle = sub {	3497	local $Coro::idle = sub {
2441	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#
2442	(async {	3499	(async {
2443	Event::one_event;	3500	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3501	EV::loop EV::LOOP_ONESHOT;
2444	})->prio (Coro::PRIO_MAX);	3502	})->prio (Coro::PRIO_MAX);
2445	};	3503	};
2446		3504
2447	cfg_load;	3505	evthread_start IO::AIO::poll_fileno;
		3506
		3507	cf::sync_job {
		3508	reload_resources;
		3509	reload_config;
2448	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
2449	load_extensions;	3523	load_extensions;
2450		3524
2451	$TICK_WATCHER->start;	3525	utime time, time, $RUNTIMEFILE;
2452	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;
2453	}	3535	}
2454		3536
2455	#############################################################################	3537	#############################################################################
2456	# initialisation and cleanup	3538	# initialisation and cleanup
2457		3539
2458	# install some emergency cleanup handlers	3540	# install some emergency cleanup handlers
2459	BEGIN {	3541	BEGIN {
		3542	our %SIGWATCHER = ();
2460	for my $signal (qw(INT HUP TERM)) {	3543	for my $signal (qw(INT HUP TERM)) {
2461	Event->signal (	3544	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2462	reentrant => 0,
2463	data => WF_AUTOCANCEL,
2464	signal => $signal,
2465	prio => 0,
2466	cb => sub {
2467	cf::cleanup "SIG$signal";	3545	cf::cleanup "SIG$signal";
2468	},
2469	);	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
2470	}	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 };
2471	}	3634	}
2472		3635
2473	sub emergency_save() {	3636	sub emergency_save() {
2474	my $freeze_guard = cf::freeze_mainloop;	3637	my $freeze_guard = cf::freeze_mainloop;
2475		3638
2476	warn "enter emergency perl save\n";	3639	warn "emergency_perl_save: enter\n";
2477		3640
2478	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
2479	# use a peculiar iteration method to avoid tripping on perl	3647	# use a peculiar iteration method to avoid tripping on perl
2480	# refcount bugs in for. also avoids problems with players	3648	# refcount bugs in for. also avoids problems with players
2481	# and maps saved/destroyed asynchronously.	3649	# and maps saved/destroyed asynchronously.
2482	warn "begin emergency player save\n";	3650	warn "emergency_perl_save: begin player save\n";
2483	for my $login (keys %cf::PLAYER) {	3651	for my $login (keys %cf::PLAYER) {
2484	my $pl = $cf::PLAYER{$login} or next;	3652	my $pl = $cf::PLAYER{$login} or next;
2485	$pl->valid or next;	3653	$pl->valid or next;
		3654	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2486	$pl->save;	3655	$pl->save;
2487	}	3656	}
2488	warn "end emergency player save\n";	3657	warn "emergency_perl_save: end player save\n";
2489		3658
2490	warn "begin emergency map save\n";	3659	warn "emergency_perl_save: begin map save\n";
2491	for my $path (keys %cf::MAP) {	3660	for my $path (keys %cf::MAP) {
2492	my $map = $cf::MAP{$path} or next;	3661	my $map = $cf::MAP{$path} or next;
2493	$map->valid or next;	3662	$map->valid or next;
2494	$map->save;	3663	$map->save;
2495	}	3664	}
2496	warn "end emergency map save\n";	3665	warn "emergency_perl_save: end map save\n";
2497		3666
2498	warn "begin emergency database checkpoint\n";	3667	warn "emergency_perl_save: begin database checkpoint\n";
2499	BDB::db_env_txn_checkpoint $DB_ENV;	3668	BDB::db_env_txn_checkpoint $DB_ENV;
2500	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";
2501	};	3674	};
2502		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
2503	warn "leave emergency perl save\n";	3681	warn "emergency_perl_save: leave\n";
2504	}	3682	}
2505		3683
2506	sub post_cleanup {	3684	sub post_cleanup {
2507	my ($make_core) = @_;	3685	my ($make_core) = @_;
2508		3686
2509	warn Carp::longmess "post_cleanup backtrace"	3687	warn Carp::longmess "post_cleanup backtrace"
2510	if $make_core;	3688	if $make_core;
2511	}
2512		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 $pkg\n";#d#
		3718	}
		3719
2513	sub reload() {	3720	sub do_reload_perl() {
2514	# can/must only be called in main	3721	# can/must only be called in main
2515	if ($Coro::current != $Coro::main) {	3722	if ($Coro::current != $Coro::main) {
2516	warn "can only reload from main coroutine";	3723	warn "can only reload from main coroutine";
2517	return;	3724	return;
2518	}	3725	}
2519		3726
		3727	return if $RELOAD++;
		3728
		3729	my $t1 = EV::time;
		3730
		3731	while ($RELOAD) {
2520	warn "reloading...";	3732	warn "reloading...";
2521		3733
2522	warn "entering sync_job";	3734	warn "entering sync_job";
2523		3735
2524	cf::sync_job {	3736	cf::sync_job {
2525	cf::write_runtime; # external watchdog should not bark	3737	cf::write_runtime_sync; # external watchdog should not bark
2526	cf::emergency_save;	3738	cf::emergency_save;
2527	cf::write_runtime; # external watchdog should not bark	3739	cf::write_runtime_sync; # external watchdog should not bark
2528		3740
2529	warn "syncing database to disk";	3741	warn "syncing database to disk";
2530	BDB::db_env_txn_checkpoint $DB_ENV;	3742	BDB::db_env_txn_checkpoint $DB_ENV;
2531		3743
2532	# 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
2533		3745
2534	warn "cancelling all WF_AUTOCANCEL watchers";
2535	for (Event::all_watchers) {
2536	$_->cancel if $_->data & WF_AUTOCANCEL;
2537	}
2538
2539	warn "flushing outstanding aio requests";	3746	warn "flushing outstanding aio requests";
2540	for (;;) {
2541	BDB::flush;
2542	IO::AIO::flush;
2543	Coro::cede;
2544	last unless IO::AIO::nreqs || BDB::nreqs;	3747	while (IO::AIO::nreqs || BDB::nreqs) {
2545	warn "iterate...";	3748	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2546	}
2547
2548	++$RELOAD;
2549
2550	warn "cancelling all extension coros";
2551	$_->cancel for values %EXT_CORO;
2552	%EXT_CORO = ();
2553
2554	warn "removing commands";
2555	%COMMAND = ();
2556
2557	warn "removing ext commands";
2558	%EXTCMD = ();
2559
2560	warn "unloading/nuking all extensions";
2561	for my $pkg (@EXTS) {
2562	warn "... unloading $pkg";
2563
2564	if (my $cb = $pkg->can ("unload")) {
2565	eval {
2566	$cb->($pkg);
2567	1
2568	} or warn "$pkg unloaded, but with errors: $@";
2569	}	3749	}
2570		3750
2571	warn "... nuking $pkg";	3751	warn "cancelling all extension coros";
2572	Symbol::delete_package $pkg;	3752	$_->cancel for values %EXT_CORO;
2573	}	3753	%EXT_CORO = ();
2574		3754
2575	warn "unloading all perl modules loaded from $LIBDIR";	3755	warn "removing commands";
2576	while (my ($k, $v) = each %INC) {	3756	%COMMAND = ();
2577	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2578		3757
		3758	warn "removing ext/exti commands";
		3759	%EXTCMD = ();
		3760	%EXTICMD = ();
		3761
		3762	warn "unloading/nuking all extensions";
		3763	for my $pkg (@EXTS) {
2579	warn "... unloading $k";	3764	warn "... unloading $pkg";
2580	delete $INC{$k};
2581		3765
2582	$k =~ s/\.pm$//;
2583	$k =~ s/\//::/g;
2584
2585	if (my $cb = $k->can ("unload_module")) {	3766	if (my $cb = $pkg->can ("unload")) {
		3767	eval {
2586	$cb->();	3768	$cb->($pkg);
		3769	1
		3770	} or warn "$pkg unloaded, but with errors: $@";
		3771	}
		3772
		3773	warn "... clearing $pkg";
		3774	clear_package $pkg;
2587	}	3775	}
2588		3776
2589	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 $k;
2590	}	3792	}
2591		3793
2592	warn "getting rid of safe::, as good as possible";	3794	warn "getting rid of safe::, as good as possible";
2593	Symbol::delete_package "safe::$_"	3795	clear_package "safe::$_"
2594	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);
2595		3797
2596	warn "unloading cf.pm \"a bit\"";	3798	warn "unloading cf.pm \"a bit\"";
2597	delete $INC{"cf.pm"};	3799	delete $INC{"cf.pm"};
		3800	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2598		3801
2599	# don't, removes xs symbols, too,	3802	# don't, removes xs symbols, too,
2600	# and global variables created in xs	3803	# and global variables created in xs
2601	#Symbol::delete_package __PACKAGE__;	3804	#clear_package __PACKAGE__;
2602		3805
2603	warn "unload completed, starting to reload now";	3806	warn "unload completed, starting to reload now";
2604		3807
2605	warn "reloading cf.pm";	3808	warn "reloading cf.pm";
2606	require cf;	3809	require cf;
2607	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3810	cf::_connect_to_perl_1;
2608		3811
2609	warn "loading config and database again";	3812	warn "loading config and database again";
2610	cf::cfg_load;	3813	cf::reload_config;
2611		3814
2612	warn "loading extensions";	3815	warn "loading extensions";
2613	cf::load_extensions;	3816	cf::load_extensions;
2614		3817
		3818	if ($REATTACH_ON_RELOAD) {
2615	warn "reattaching attachments to objects/players";	3819	warn "reattaching attachments to objects/players";
2616	_global_reattach; # objects, sockets	3820	_global_reattach; # objects, sockets
2617	warn "reattaching attachments to maps";	3821	warn "reattaching attachments to maps";
2618	reattach $_ for values %MAP;	3822	reattach $_ for values %MAP;
2619	warn "reattaching attachments to players";	3823	warn "reattaching attachments to players";
2620	reattach $_ for values %PLAYER;	3824	reattach $_ for values %PLAYER;
		3825	}
2621		3826
2622	warn "loading reloadable resources";	3827	warn "running post_init jobs";
2623	reload_resources;	3828	(pop @POST_INIT)->(1) while @POST_INIT;
2624		3829
2625	warn "leaving sync_job";	3830	warn "leaving sync_job";
2626		3831
2627	1	3832	1
2628	} or do {	3833	} or do {
2629	warn $@;	3834	warn $@;
2630	warn "error while reloading, exiting.";	3835	cf::cleanup "error while reloading, exiting.";
2631	exit 1;	3836	};
		3837
		3838	warn "reloaded";
		3839	--$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	};
2632	};	3859	};
2633		3860	}
2634	warn "reloaded";
2635	};
2636
2637	our $RELOAD_WATCHER; # used only during reload
2638		3861
2639	register_command "reload" => sub {	3862	register_command "reload" => sub {
2640	my ($who, $arg) = @_;	3863	my ($who, $arg) = @_;
2641		3864
2642	if ($who->flag (FLAG_WIZ)) {	3865	if ($who->flag (FLAG_WIZ)) {
2643	$who->message ("reloading server.");	3866	$who->message ("reloading server.");
2644		3867	async {
2645	# doing reload synchronously and two reloads happen back-to-back,	3868	$Coro::current->{desc} = "perl_reload";
2646	# coro crashes during coro_state_free->destroy here.
2647
2648	$RELOAD_WATCHER ||= Event->timer (
2649	reentrant => 0,
2650	after => 0,
2651	data => WF_AUTOCANCEL,
2652	cb => sub {
2653	reload;	3869	reload_perl;
2654	undef $RELOAD_WATCHER;
2655	},
2656	);	3870	};
2657	}	3871	}
2658	};	3872	};
2659		3873
2660	unshift @INC, $LIBDIR;	3874	unshift @INC, $LIBDIR;
2661		3875
…		…
2663		3877
2664	our @WAIT_FOR_TICK;	3878	our @WAIT_FOR_TICK;
2665	our @WAIT_FOR_TICK_BEGIN;	3879	our @WAIT_FOR_TICK_BEGIN;
2666		3880
2667	sub wait_for_tick {	3881	sub wait_for_tick {
2668	return unless $TICK_WATCHER->is_active;
2669	return if $Coro::current == $Coro::main;	3882	return if tick_inhibit || $Coro::current == $Coro::main;
2670		3883
2671	my $signal = new Coro::Signal;	3884	my $signal = new Coro::Signal;
2672	push @WAIT_FOR_TICK, $signal;	3885	push @WAIT_FOR_TICK, $signal;
2673	$signal->wait;	3886	$signal->wait;
2674	}	3887	}
2675		3888
2676	sub wait_for_tick_begin {	3889	sub wait_for_tick_begin {
2677	return unless $TICK_WATCHER->is_active;
2678	return if $Coro::current == $Coro::main;	3890	return if tick_inhibit || $Coro::current == $Coro::main;
2679		3891
2680	my $signal = new Coro::Signal;	3892	my $signal = new Coro::Signal;
2681	push @WAIT_FOR_TICK_BEGIN, $signal;	3893	push @WAIT_FOR_TICK_BEGIN, $signal;
2682	$signal->wait;	3894	$signal->wait;
2683	}	3895	}
2684		3896
2685	$TICK_WATCHER = Event->timer (	3897	sub tick {
2686	reentrant => 0,
2687	parked => 1,
2688	prio => 0,
2689	at => $NEXT_TICK || $TICK,
2690	data => WF_AUTOCANCEL,
2691	cb => sub {
2692	if ($Coro::current != $Coro::main) {	3898	if ($Coro::current != $Coro::main) {
2693	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3899	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2694	unless ++$bug_warning > 10;	3900	unless ++$bug_warning > 10;
2695	return;	3901	return;
2696	}	3902	}
2697		3903
2698	$NOW = Event::time;
2699
2700	cf::server_tick; # one server iteration	3904	cf::server_tick; # one server iteration
2701		3905
2702	$RUNTIME += $TICK;
2703	$NEXT_TICK += $TICK;
2704
2705	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3906	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2706	$NEXT_RUNTIME_WRITE = $NOW + 10;	3907	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2707	Coro::async_pool {	3908	Coro::async_pool {
		3909	$Coro::current->{desc} = "runtime saver";
2708	write_runtime	3910	write_runtime_sync
2709	or warn "ERROR: unable to write runtime file: $!";	3911	or warn "ERROR: unable to write runtime file: $!";
2710	};
2711	}	3912	};
		3913	}
2712		3914
2713	# my $AFTER = Event::time;
2714	# warn $AFTER - $NOW;#d#
2715
2716	# if we are delayed by four ticks or more, skip them all
2717	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2718
2719	$TICK_WATCHER->at ($NEXT_TICK);
2720	$TICK_WATCHER->start;
2721
2722	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3915	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2723	$sig->send;	3916	$sig->send;
2724	}	3917	}
2725	while (my $sig = shift @WAIT_FOR_TICK) {	3918	while (my $sig = shift @WAIT_FOR_TICK) {
2726	$sig->send;	3919	$sig->send;
2727	}
2728
2729	_post_tick;
2730	},	3920	}
2731	);	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	}
2732		3933
2733	{	3934	{
2734	BDB::max_poll_time $TICK * 0.1;	3935	# configure BDB
2735	$BDB_POLL_WATCHER = Event->io (	3936
2736	reentrant => 0,
2737	fd => BDB::poll_fileno,
2738	poll => 'r',
2739	prio => 0,
2740	data => WF_AUTOCANCEL,
2741	cb => \&BDB::poll_cb,
2742	);
2743	BDB::min_parallel 8;	3937	BDB::min_parallel 8;
2744		3938	BDB::max_poll_reqs $TICK * 0.1;
2745	BDB::set_sync_prepare {	3939	$AnyEvent::BDB::WATCHER->priority (1);
2746	my $status;
2747	my $current = $Coro::current;
2748	(
2749	sub {
2750	$status = $!;
2751	$current->ready; undef $current;
2752	},
2753	sub {
2754	Coro::schedule while defined $current;
2755	$! = $status;
2756	},
2757	)
2758	};
2759		3940
2760	unless ($DB_ENV) {	3941	unless ($DB_ENV) {
2761	$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);
2762		3948
2763	cf::sync_job {	3949	cf::sync_job {
2764	eval {	3950	eval {
2765	BDB::db_env_open	3951	BDB::db_env_open
2766	$DB_ENV,	3952	$DB_ENV,
2767	$BDB_ENV_DIR,	3953	$BDBDIR,
2768	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3954	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2769	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3955	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2770	0666;	3956	0666;
2771		3957
2772	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3958	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2773
2774	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2775	$DB_ENV->set_lk_detect;
2776	};	3959	};
2777		3960
2778	cf::cleanup "db_env_open(db): $@" if $@;	3961	cf::cleanup "db_env_open(db): $@" if $@;
2779	};	3962	};
2780	}	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	};
2781	}	3974	}
2782		3975
2783	{	3976	{
		3977	# configure IO::AIO
		3978
2784	IO::AIO::min_parallel 8;	3979	IO::AIO::min_parallel 8;
2785
2786	undef $Coro::AIO::WATCHER;
2787	IO::AIO::max_poll_time $TICK * 0.1;	3980	IO::AIO::max_poll_time $TICK * 0.1;
2788	$AIO_POLL_WATCHER = Event->io (	3981	undef $AnyEvent::AIO::WATCHER;
2789	reentrant => 0,
2790	data => WF_AUTOCANCEL,
2791	fd => IO::AIO::poll_fileno,
2792	poll => 'r',
2793	prio => 6,
2794	cb => \&IO::AIO::poll_cb,
2795	);
2796	}	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;
2797		4029
2798	END { cf::emergency_save }	4030	END { cf::emergency_save }
2799		4031
2800	1	4032	1
2801		4033

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