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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.250 by root, Wed Apr 18 14:24:10 2007 UTC vs.
Revision 1.490 by root, Sat Oct 24 06:16:40 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 Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
14		37
		38	use Guard ();
15	use Coro 3.61 ();	39	use Coro ();
16	use Coro::State;	40	use Coro::State;
17	use Coro::Handle;	41	use Coro::Handle;
		42	use Coro::EV;
18	use Coro::Event;	43	use Coro::AnyEvent;
19	use Coro::Timer;	44	use Coro::Timer;
20	use Coro::Signal;	45	use Coro::Signal;
21	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
22	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
23	use Coro::Storable;	51	use Coro::Storable;
		52	use Coro::Util ();
24		53
		54	use JSON::XS 2.01 ();
25	use BDB ();	55	use BDB ();
26	use Data::Dumper;	56	use Data::Dumper;
27	use Digest::MD5;	57	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	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";
38	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
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
59	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;
60		112
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	115	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	120	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
71		124
72	our %CFG;	125	our %CFG;
73		126
74	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
76		130
77	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	133	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		134
83	# 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 ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		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 $REALLY_UNLOOP; # never set to true, please :)
		147
86	binmode STDOUT;	148	binmode STDOUT;
87	binmode STDERR;	149	binmode STDERR;
88		150
89	# read virtual server time, if available	151	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
94	}	156	}
95		157
96	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	159
98	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		162
103	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
104		164
105	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::"} };
106		177
107	#############################################################################	178	#############################################################################
108		179
109	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
110		181
…		…
117	=item $cf::RUNTIME	188	=item $cf::RUNTIME
118		189
119	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
120	every server tick.	191	every server tick.
121		192
122	=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
123		196
124	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
125	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.
126		201
127	=item $cf::NOW	202	=item $cf::NOW
128		203
129	The time of the last (current) server tick.	204	The time of the last (current) server tick.
130		205
131	=item $cf::TICK	206	=item $cf::TICK
132		207
133	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
134		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
135	=item %cf::CFG	220	=item %cf::CFG
136		221
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	223	from wherever your confdir points to.
139		224
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		226
142	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
143	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
144	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.
145		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
146	=back	243	=back
147		244
148	=cut	245	=cut
149		246
150	BEGIN {	247	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	248	my $msg = join "", @_;
153		249
154	$msg .= "\n"	250	$msg .= "\n"
155	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
156		252
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		254
159	utf8::encode $msg;
160	LOG llevError, $msg;	255	LOG llevError, $msg;
161	};	256	};
162	}	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	};
163		271
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		279
171	# 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
172	# within the Safe compartment.	281	# within the Safe compartment.
173	for my $pkg (qw(	282	for my $pkg (qw(
174	cf::global cf::attachable	283	cf::global cf::attachable
175	cf::object cf::object::player	284	cf::object cf::object::player
176	cf::client cf::player	285	cf::client cf::player
177	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
178	cf::map cf::party cf::region	288	cf::party cf::region
179	)) {	289	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	291	}
183		292
184	$Event::DIED = sub {	293	$EV::DIED = sub {
185	warn "error in event callback: @_";	294	warn "error in event callback: @_";
186	};	295	};
		296
		297	#############################################################################
187		298
188	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
189		300
190	=over 4	301	=over 4
191		302
…		…
210	$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;
211	$d	322	$d
212	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
213	}	324	}
214		325
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
218		327
219	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
220		329
221	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
222		331
223	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
224		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
225	=item cf::lock_wait $string	355	=item cf::lock_wait $string
226		356
227	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
228		358
229	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
230		360
231	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
232	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,
233	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
234	returned.	364	returned.
235		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
236	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
237	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
238		371
239	=cut	372	=item $locked = cf::lock_active $string
240		373
241	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
242		379
243	sub lock_wait($) {	380	sub lock_wait($) {
244	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	382	}
252		383
253	sub lock_acquire($) {	384	sub lock_acquire($) {
254	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
255		387
256	# wait, to be sure we are not locked	388	sub lock_active($) {
257	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	390	}
266		391
267	sub freeze_mainloop {	392	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
269		394
270	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
271	$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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
272	};	456	}
273	$TICK_WATCHER->stop;	457	};
274	$guard	458
		459	sub get_slot($;$$) {
		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	$sig->wait;
275	}	471	}
276		472
277	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
278		474
279	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		480
285	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
286		482
287	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
288		484
289	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
292		489
293	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
296	fast or be very important.	493	fast or be very important.
…		…
299		496
300	sub sync_job(&) {	497	sub sync_job(&) {
301	my ($job) = @_;	498	my ($job) = @_;
302		499
303	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
304	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
306		505
307	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	507
309	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
310		509
311	my $busy = 1;	510	my $busy = 1;
312	my @res;	511	my @res;
313		512
314	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	515	@res = eval { $job->() };
316	warn $@ if $@;	516	warn $@ if $@;
317	undef $busy;	517	undef $busy;
318	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
319		519
320	while ($busy) {	520	while ($busy) {
321	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
322	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
323		531
324	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
325	} else {	533	} else {
326	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
327		535
…		…
347	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
348		556
349	$coro	557	$coro
350	}	558	}
351		559
352	sub write_runtime {	560	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		561
355	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.
356		566
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	567	=cut
358	or return;
359		568
360	my $value = $cf::RUNTIME + 90 + 10;	569	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	570	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		571
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	572	# we seemingly have to make a local copy of the whole thing,
365	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
366		575
367	# always fsync - this file is important	576	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	577	reset_signals;
369	and return;	578	&$cb
		579	}, @args;
370		580
371	close $fh	581	wantarray ? @res : $res[-1]
372	or return;	582	}
373		583
374	aio_rename "$runtime~", $runtime	584	=item $coin = coin_from_name $name
375	and return;
376		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		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($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
377	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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"
378	}	736	}
379		737
380	=item cf::datalog type => key => value, ...	738	=item cf::datalog type => key => value, ...
381		739
382	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.
…		…
394		752
395	#############################################################################	753	#############################################################################
396		754
397	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
398		756
399	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
400	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")
401	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
402		760
403	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>
404	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
405	crossfire+).	763	Deliantra).
406		764
407	=over 4	765	=over 4
408		766
409	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
410		768
…		…
454	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
455		813
456	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
458		816
459	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
460	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.
461		819
462	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
463		821
464	=over 4	822	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
574		932
575	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		937
580	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	939	my $pkg = shift @arg;
582		940
583	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
613	}	971	}
614		972
615	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
616	} else {	974	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	976	}
619		977
620	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
621	}	979	}
622		980
…		…
624	if (ref $_[0]) {	982	if (ref $_[0]) {
625	_object_attach @_;	983	_object_attach @_;
626	} else {	984	} else {
627	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
628	}	986	}
		987	_recalc_want;
629	};	988	};
630		989
631	# all those should be optimised	990	# all those should be optimised
632	sub cf::attachable::detach {	991	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
637	reattach ($obj);	996	reattach ($obj);
638	} else {	997	} else {
639	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
640	}	999	}
		1000	_recalc_want;
641	};	1001	};
642		1002
643	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
645		1005
…		…
660	";	1020	";
661	die if $@;	1021	die if $@;
662	}	1022	}
663		1023
664	our $override;	1024	our $override;
665	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?
666		1026
667	sub override {	1027	sub override {
668	$override = 1;	1028	$override = 1;
669	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
670	}	1030	}
671		1031
672	sub do_invoke {	1032	sub do_invoke {
673	my $event = shift;	1033	my $event = shift;
674	my $callbacks = shift;	1034	my $callbacks = shift;
675		1035
676	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
677		1037
678	local $override;	1038	local $override;
679		1039
680	for (@$callbacks) {	1040	for (@$callbacks) {
681	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
690	}	1050	}
691		1051
692	0	1052	0
693	}	1053	}
694		1054
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1056
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1058
699	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
700		1060
701	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
702	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
703	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1064
705	=back	1065	=back
706		1066
707	=cut	1067	=cut
708		1068
709	#############################################################################	1069	#############################################################################
710	# 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, $ob2
		1112	}
711		1113
712	sub reattach {	1114	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1116	my ($obj) = @_;
715		1117
		1118	# no longer needed after getting rid of delete_package?
716	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
717		1120
718	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
719		1122
720	@$registry = ();	1123	@$registry = ();
721		1124
…		…
736	cf::attachable->attach (	1139	cf::attachable->attach (
737	prio => -1000000,	1140	prio => -1000000,
738	on_instantiate => sub {	1141	on_instantiate => sub {
739	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
740		1143
741	$data = from_json $data;	1144	$data = decode_json $data;
742		1145
743	for (@$data) {	1146	for (@$data) {
744	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
745		1148
746	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1165	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
764		1167
765	sync_job {	1168	sync_job {
766	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
769		1173
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	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	}
774	close $fh;	1181	aio_close $fh;
775		1182
776	if (@$objs) {	1183	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
781	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	}
782	close $fh;	1192	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
784	}	1194	}
785	} else {	1195	} else {
786	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
787	}	1197	}
788		1198
789	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1203	} else {
791	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
792	}	1205	}
793	} else {	1206	} else {
794	aio_unlink $filename;	1207	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
796	}	1209	}
797	}	1210	};
798	}	1211	}
799		1212
800	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
802		1215
…		…
814	or return;	1227	or return;
815		1228
816	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
818	or return;	1231	or return;
		1232
819	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
820	}	1235	}
821		1236
		1237	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
824	return ($data, $av);	1241	($data, $av)
825	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
826		1249
827	#############################################################################	1250	#############################################################################
828	# command handling &c	1251	# command handling &c
829		1252
830	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1267	}
845		1268
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1270
848	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.
849		1276
850	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
851	called.	1278	called.
852		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
853	=cut	1291	=cut
854		1292
855	sub register_extcmd {	1293	sub register_extcmd {
856	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
857		1295
858	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
859	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
860		1306
861	cf::player->attach (	1307	cf::player->attach (
862	on_command => sub {	1308	on_command => sub {
863	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
864		1310
…		…
872	cf::override;	1318	cf::override;
873	},	1319	},
874	on_extcmd => sub {	1320	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
876		1322
877	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1324
879	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
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
885	} else {	1340	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1342	}
888		1343
889	cf::override;	1344	cf::override;
890	},	1345	},
891	);	1346	);
892		1347
		1348	# "readahead" all extensions
893	sub load_extension {	1349	sub cache_extensions {
894	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
895		1351
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1355	}
921	die $@;
922	}	1356	};
923		1357
924	push @EXTS, $pkg;	1358	$grp
925	}	1359	}
926		1360
927	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
928	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1366	next unless -r $path;
930	eval {	1367
931	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	$progress = 1;
932	1	1424	}
933	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
934	}	1430	};
935	}	1431	}
936		1432
937	#############################################################################	1433	#############################################################################
938		1434
		1435	=back
		1436
939	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
940		1438
941	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
942		1440
943	=cut	1441	=cut
944		1442
945	package cf::player;	1443	package cf::player;
946		1444
…		…
948		1446
949	=head3 cf::player	1447	=head3 cf::player
950		1448
951	=over 4	1449	=over 4
952		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
953	=item cf::player::find $login	1465	=item cf::player::find $login
954		1466
955	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
956		1468
957	=cut	1469	=cut
958		1470
959	sub playerdir($) {	1471	sub playerdir($) {
960	cf::localdir	1472	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1474	}
966		1475
967	sub path($) {	1476	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1487
979	sub exists($) {	1488	sub exists($) {
980	my ($login) = @_;	1489	my ($login) = @_;
981		1490
982	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
984	}	1493	}
985		1494
986	sub find($) {	1495	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1497	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1507	aio_unlink +(playerdir $login) . "/$login.pl";
999		1508
1000	my $pl = load_pl path $login	1509	my $f = new_from_file cf::object::thawer path $login
1001	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;
1002	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
1003	}	1518	}
1004	}	1519	}
1005	}	1520	}
1006		1521
…		…
1015	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
1016		1531
1017	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
1019		1534
		1535	cf::get_slot 0.01;
		1536
1020	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
1021	Coro::cede;	1538	cf::cede_to_tick;
1022	}	1539	}
1023		1540
1024	sub new($) {	1541	sub new($) {
1025	my ($login) = @_;	1542	my ($login) = @_;
1026		1543
…		…
1032	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1033		1550
1034	$self	1551	$self
1035	}	1552	}
1036		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
1037	=item $pl->quit_character	1564	=item $pl->quit_character
1038		1565
1039	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1041		1568
…		…
1045	my ($pl) = @_;	1572	my ($pl) = @_;
1046		1573
1047	my $name = $pl->ob->name;	1574	my $name = $pl->ob->name;
1048		1575
1049	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1050	$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
1051		1578
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1056		1585
1057	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1089		1618
1090	=cut	1619	=cut
1091		1620
1092	sub list_logins {	1621	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1623	or return [];
1095		1624
1096	my @logins;	1625	my @logins;
1097		1626
1098	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") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1102		1637
1103	utf8::decode $login;	1638	utf8::decode $login;
1104	push @logins, $login;	1639	push @logins, $login;
1105	}	1640	}
1106		1641
…		…
1133	}	1668	}
1134		1669
1135	\@paths	1670	\@paths
1136	}	1671	}
1137		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1138	=item $player->ext_reply ($msgid, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1139		1678
1140	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1141		1680
1142	=cut	1681	=cut
1143		1682
1144	sub ext_reply($$%) {	1683	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1146		1685
1147	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1687	}
1151		1688
1152	=item $player->ext_event ($type, %msg)	1689	=item $player->ext_msg ($type, @msg)
1153		1690
1154	Sends an ext event to the client.	1691	Sends an ext event to the client.
1155		1692
1156	=cut	1693	=cut
1157		1694
1158	sub ext_event($$%) {	1695	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1696	my ($self, $type, @msg) = @_;
1160		1697
1161	$self->ns->ext_event ($type, %msg);	1698	$self->ns->ext_msg ($type, @msg);
1162	}	1699	}
1163		1700
1164	=head3 cf::region	1701	=head3 cf::region
1165		1702
1166	=over 4	1703	=over 4
…		…
1169		1706
1170	package cf::region;	1707	package cf::region;
1171		1708
1172	=item cf::region::find_by_path $path	1709	=item cf::region::find_by_path $path
1173		1710
1174	Tries to decuce the probable region for a map knowing only its path.	1711	Tries to decuce the likely region for a map knowing only its path.
1175		1712
1176	=cut	1713	=cut
1177		1714
1178	sub find_by_path($) {	1715	sub find_by_path($) {
1179	my ($path) = @_;	1716	my ($path) = @_;
1180		1717
1181	my ($match, $specificity);	1718	my ($match, $specificity);
1182		1719
1183	for my $region (list) {	1720	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1721	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1722	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1723	if $region->specificity > $specificity;
1187	}	1724	}
1188	}	1725	}
1189		1726
…		…
1210	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1212		1749
1213	sub generate_random_map {	1750	sub generate_random_map {
1214	my ($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
1215	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1756	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1254		1794
1255	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1256	local $self->{path};	1796	local $self->{path};
1257	local $self->{load_path};	1797	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1798
1261	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1262	}	1800	}
1263		1801
1264	sub normalise {	1802	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1312	return $self;	1850	return $self;
1313	}	1851	}
1314	}	1852	}
1315		1853
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1855	()
1318	}	1856	}
1319		1857
1320	sub init {	1858	sub init {
1321	my ($self) = @_;	1859	my ($self) = @_;
…		…
1336		1874
1337	# the original (read-only) location	1875	# the original (read-only) location
1338	sub load_path {	1876	sub load_path {
1339	my ($self) = @_;	1877	my ($self) = @_;
1340		1878
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1342	}	1880	}
1343		1881
1344	# the temporary/swap location	1882	# the temporary/swap location
1345	sub save_path {	1883	sub save_path {
1346	my ($self) = @_;	1884	my ($self) = @_;
1347		1885
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1350	}	1888	}
1351		1889
1352	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1353	sub uniq_path {	1891	sub uniq_path {
1354	my ($self) = @_;	1892	my ($self) = @_;
1355		1893
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1358	}	1896	}
1359		1897
1360	# and all this just because we cannot iterate over	1898	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1899	my ($self) = @_;
1364		1900
1365	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1367	}	1904	}
1368		1905
1369	sub unlink_save {	1906	sub unlink_save {
1370	my ($self) = @_;	1907	my ($self) = @_;
1371		1908
…		…
1376		1913
1377	sub load_header_from($) {	1914	sub load_header_from($) {
1378	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1379		1916
1380	utf8::encode $path;	1917	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	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;
1386		1926
1387	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1388		1928
1389	1	1929	1
1390	}	1930	}
…		…
1429	$self->load_header_orig	1969	$self->load_header_orig
1430	or return;	1970	or return;
1431	$self->prepare_orig;	1971	$self->prepare_orig;
1432	}	1972	}
1433		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
1434	$self->default_region (cf::region::find_by_path $self->{path})	1977	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1978	unless $self->default_region;
1436		1979
1437	1	1980	1
1438	}	1981	}
…		…
1441	sub find {	1984	sub find {
1442	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1443		1986
1444	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1445		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1447		1991
1448	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1451	or return;	1994	or return;
1452		1995
1453	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1454		1997
1455	$map->load_header	1998	$map->load_header
1456	or return;	1999	or return;
1457		2000
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1461	$map->reset;	2006	$map->reset;
1462	undef $guard;
1463	return find $path;	2007	return find $path;
1464	}	2008	}
1465		2009
1466	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1467	}	2011	}
…		…
1474	my ($self) = @_;	2018	my ($self) = @_;
1475		2019
1476	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1477		2021
1478	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1480		2026
		2027	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2029
1483	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1484		2031
1485	$self->alloc;	2032	$self->alloc;
1486		2033
1487	$self->pre_load;	2034	$self->pre_load;
1488	Coro::cede;	2035	cf::cede_to_tick;
1489		2036
1490	$self->_load_objects ($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)
1491	or return;	2040	or return;
1492		2041
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1494	if delete $self->{load_original};	2043	if delete $self->{load_original};
1495		2044
1496	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2046	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2049	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1501	}	2053	}
1502	}	2054	}
1503		2055
1504	Coro::cede;	2056	$f->resolve_delayed_derefs;
		2057
		2058	cf::cede_to_tick;
1505	# now do the right thing for maps	2059	# now do the right thing for maps
1506	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2062	unless $self->difficulty;
1517	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1518	$self->activate;	2070	$self->activate;
1519	Coro::cede;	2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2077	}
1521		2078
1522	$self->post_load;	2079	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2080	}
1527		2081
1528	sub customise_for {	2082	sub customise_for {
1529	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1530		2084
1531	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2086	if $self->per_player;
1533		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1534	$self	2091	$self
1535	}	2092	}
1536		2093
1537	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2095	sub load_neighbours {
1539	my ($map) = @_;	2096	my ($map) = @_;
1540		2097
1541	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1542		2099
1543	for (0 .. 3) {	2100	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1545	or next;	2102	or next;
1546	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1547	or next;	2104	or next;
1548	$neigh->load;	2105	$neigh->load;
1549		2106
		2107	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2110	}
1553		2111
1554	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1556	or next;	2115	or next;
1557	$neigh->load;	2116	$neigh->load;
1558	}	2117	}
1559	}	2118	}
1560		2119
…		…
1565	}	2124	}
1566		2125
1567	sub do_load_sync {	2126	sub do_load_sync {
1568	my ($map) = @_;	2127	my ($map) = @_;
1569		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1570	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1571	}	2133	}
1572		2134
1573	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1575		2137
1576	sub find_async {	2138	sub find_async {
1577	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1578		2140
1579	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1580		2142
1581	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2145	}
1584		2146
1585	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1586	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1587	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2154	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2155	$map->load if $v;
		2156	}
1592		2157
1593	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1594	}	2159	}
1595	}	2160	}
1596	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1597	};	2162	};
1598	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2166	}
1602		2167
1603	sub save {	2168	sub save {
1604	my ($self) = @_;	2169	my ($self) = @_;
1605		2170
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2172
1608	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1609		2174
1610	return unless $self->dirty;	2175	return unless $self->dirty;
1611		2176
…		…
1617	return if $self->{deny_save};	2182	return if $self->{deny_save};
1618		2183
1619	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1620		2185
1621	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1623	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1624		2192
1625	if ($uniq) {	2193	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2196	} else {
…		…
1634	my ($self) = @_;	2202	my ($self) = @_;
1635		2203
1636	# save first because save cedes	2204	# save first because save cedes
1637	$self->save;	2205	$self->save;
1638		2206
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2208
1641	return if $self->players;	2209	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2211	return if $self->{deny_save};
1644		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2217	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2218	}
1648		2219
1649	sub reset_at {	2220	sub reset_at {
1650	my ($self) = @_;	2221	my ($self) = @_;
1651		2222
1652	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1655		2225
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2228
…		…
1669	my ($self) = @_;	2239	my ($self) = @_;
1670		2240
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2242
1673	return if $self->players;	2243	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2244
1676	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
1677		2246
1678	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->in_memory (cf::MAP_SWAPPED);
1679		2248
1680	# need to save uniques path	2249	# need to save uniques path
1681	unless ($self->{deny_save}) {	2250	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2254	if $uniq;
1686	}	2255	}
1687		2256
1688	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1689		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2261	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2262
1694	$self->unlink_save;	2263	$self->unlink_save;
1695	$self->destroy;	2264	$self->destroy;
1696	}	2265	}
1697		2266
1698	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1699		2268
1700	sub nuke {	2269	sub nuke {
1701	my ($self) = @_;	2270	my ($self) = @_;
1702		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1703	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1704		2276
1705	$self->unlink_save;	2277	$self->unlink_save;
1706		2278
1707	bless $self, "cf::map";	2279	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2284
1713	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1714		2287
1715	$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	]
1716	}	2325	}
1717		2326
1718	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1719		2328
1720	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2330	instantiated unique items. May block.
1722		2331
1723	=cut	2332	=cut
1724		2333
1725	sub unique_maps() {	2334	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1727	or return;	2336	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2337	utf8::decode $_;
1733	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2340	? ()
1736	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2343	]
1738
1739	\@paths
1740	}	2344	}
1741		2345
1742	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 excluding F</styles>). 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	next if $dir eq "/styles";
		2361
		2362	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2363	or return;
		2364
		2365	for (@$files) {
		2366	s/\.map$// or next;
		2367	utf8::decode $_;
		2368	push @maps, "$dir/$_";
		2369	}
		2370
		2371	push @dirs, map "$dir/$_", @$dirs;
		2372	}
		2373
		2374	\@maps
		2375	}
1743		2376
1744	=back	2377	=back
1745		2378
1746	=head3 cf::object	2379	=head3 cf::object
1747		2380
…		…
1751		2384
1752	=over 4	2385	=over 4
1753		2386
1754	=item $ob->inv_recursive	2387	=item $ob->inv_recursive
1755		2388
1756	Returns the inventory of the object _and_ their inventories, recursively.	2389	Returns the inventory of the object I<and> their inventories, recursively,
		2390	but I<not> the object itself.
1757		2391
1758	=cut	2392	=cut
1759		2393
1760	sub inv_recursive_;	2394	sub inv_recursive_;
1761	sub inv_recursive_ {	2395	sub inv_recursive_ {
…		…
1764		2398
1765	sub inv_recursive {	2399	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2400	inv_recursive_ inv $_[0]
1767	}	2401	}
1768		2402
		2403	=item $ref = $ob->ref
		2404
		2405	Creates and returns a persistent reference to an object that can be stored as a string.
		2406
		2407	=item $ob = cf::object::deref ($refstring)
		2408
		2409	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2410	even if the object actually exists. May block.
		2411
		2412	=cut
		2413
		2414	sub deref {
		2415	my ($ref) = @_;
		2416
		2417	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2418	my ($uuid, $name) = ($1, $2);
		2419	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2420	or return;
		2421	$pl->ob->uuid eq $uuid
		2422	or return;
		2423
		2424	$pl->ob
		2425	} else {
		2426	warn "$ref: cannot resolve object reference\n";
		2427	undef
		2428	}
		2429	}
		2430
1769	package cf;	2431	package cf;
1770		2432
1771	=back	2433	=back
1772		2434
1773	=head3 cf::object::player	2435	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2441	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2442	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2443	dialogue with the given NPC character.
1782		2444
1783	=cut	2445	=cut
		2446
		2447	our $SAY_CHANNEL = {
		2448	id => "say",
		2449	title => "Map",
		2450	reply => "say ",
		2451	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2452	};
		2453
		2454	our $CHAT_CHANNEL = {
		2455	id => "chat",
		2456	title => "Chat",
		2457	reply => "chat ",
		2458	tooltip => "Player chat and shouts, global to the server.",
		2459	};
1784		2460
1785	# rough implementation of a future "reply" method that works	2461	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2462	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2463	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2464	sub cf::object::player::reply($$$;$) {
…		…
1790		2466
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2467	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2468
1793	if ($self->{record_replies}) {	2469	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2470	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2471
1795	} else {	2472	} else {
		2473	my $pl = $self->contr;
		2474
		2475	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2476	my $dialog = $pl->{npc_dialog};
		2477	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2478
		2479	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2480	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2481	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2482	}
1798	}	2483	}
		2484	}
		2485
		2486	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2487
		2488	=cut
		2489
		2490	sub cf::object::send_msg {
		2491	my $pl = shift->contr
		2492	or return;
		2493	$pl->send_msg (@_);
1799	}	2494	}
1800		2495
1801	=item $player_object->may ("access")	2496	=item $player_object->may ("access")
1802		2497
1803	Returns wether the given player is authorized to access resource "access"	2498	Returns wether the given player is authorized to access resource "access"
…		…
1816		2511
1817	=item $player_object->enter_link	2512	=item $player_object->enter_link
1818		2513
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2514	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2515
1821	The player should be reasonably safe there for short amounts of time. You	2516	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2517	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2518	though, as the palyer cannot control the character while it is on the link
		2519	map.
1823		2520
1824	Will never block.	2521	Will never block.
1825		2522
1826	=item $player_object->leave_link ($map, $x, $y)	2523	=item $player_object->leave_link ($map, $x, $y)
1827		2524
…		…
1850	$self->deactivate_recursive;	2547	$self->deactivate_recursive;
1851		2548
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2549	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2550
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2551	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2552	if $self->map && $self->map->{path} ne "{link}";
1856		2553
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2554	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2555	}
1859		2556
1860	sub cf::object::player::leave_link {	2557	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2558	my ($self, $map, $x, $y) = @_;
		2559
		2560	return unless $self->contr->active;
1862		2561
1863	my $link_pos = delete $self->{_link_pos};	2562	my $link_pos = delete $self->{_link_pos};
1864		2563
1865	unless ($map) {	2564	unless ($map) {
1866	# restore original map position	2565	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2579	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2580	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2581	if $x <=0 && $y <= 0;
1883		2582
1884	$map->load;	2583	$map->load;
1885	$map->load_diag;	2584	$map->load_neighbours;
1886		2585
1887	return unless $self->contr->active;	2586	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2587
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2588	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2589	$self->enter_map ($map, $x, $y);
1892	}
1893		2590
1894	cf::player->attach (	2591	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2592	$self->activate_recursive;
1896	my ($pl) = @_;	2593	}
1897		2594
1898	# abort map switching before logout	2595	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2596
1908	# try to abort aborted map switching on player login :)	2597	Moves the player to the given map-path and coordinates by first freezing
1909	# should happen only on crashes	2598	her, loading and preparing them map, calling the provided $check callback
1910	if ($pl->ob->{_link_pos}) {	2599	that has to return the map if sucecssful, and then unfreezes the player on
1911	$pl->ob->enter_link;	2600	the new (success) or old (failed) map position. In either case, $done will
1912	(async {	2601	be called at the end of this process.
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2602
1926	=item $player_object->goto ($path, $x, $y)	2603	Note that $check will be called with a potentially non-loaded map, so if
		2604	it needs a loaded map it has to call C<< ->load >>.
1927		2605
1928	=cut	2606	=cut
		2607
		2608	our $GOTOGEN;
1929		2609
1930	sub cf::object::player::goto {	2610	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2611	my ($self, $path, $x, $y, $check, $done) = @_;
		2612
		2613	# do generation counting so two concurrent goto's will be executed in-order
		2614	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2615
1933	$self->enter_link;	2616	$self->enter_link;
1934		2617
1935	(async {	2618	(async {
		2619	$Coro::current->{desc} = "player::goto $path $x $y";
		2620
		2621	# *tag paths override both path and x|y
		2622	if ($path =~ /^\*(.*)$/) {
		2623	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2624	my $ob = $obs[rand @obs];
		2625
		2626	# see if we actually can go there
		2627	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2628	$ob = $obs[rand @obs];
		2629	} else {
		2630	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
		2632	# else put us there anyways for now #d#
		2633
		2634	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2635	} else {
		2636	($path, $x, $y) = (undef, undef, undef);
		2637	}
		2638	}
		2639
1936	my $map = eval {	2640	my $map = eval {
1937	my $map = cf::map::find $path;	2641	my $map = defined $path ? cf::map::find $path : undef;
		2642
		2643	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2644	$map = $map->customise_for ($self);
		2645	$map = $check->($map) if $check && $map;
		2646	} else {
		2647	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2648	}
		2649
1939	$map	2650	$map
		2651	};
		2652
		2653	if ($@) {
		2654	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2655	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2656	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2657
		2658	if ($gen == $self->{_goto_generation}) {
		2659	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2660	$self->leave_link ($map, $x, $y);
		2661	}
		2662
		2663	$done->() if $done;
1944	})->prio (1);	2664	})->prio (1);
1945	}	2665	}
1946		2666
1947	=item $player_object->enter_exit ($exit_object)	2667	=item $player_object->enter_exit ($exit_object)
1948		2668
…		…
1968	}	2688	}
1969		2689
1970	sub prepare_random_map {	2690	sub prepare_random_map {
1971	my ($exit) = @_;	2691	my ($exit) = @_;
1972		2692
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2693	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2694	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2695	# that depends on the exit object
1978		2696
1979	my $rmp = parse_random_map_params $exit->msg;	2697	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2699	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2700	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2701	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2702	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2703	$rmp->{origin_y} = $exit->y;
		2704
		2705	$exit->map->touch;
1986	}	2706	}
1987		2707
1988	$rmp->{random_seed} ||= $exit->random_seed;	2708	$rmp->{random_seed} ||= $exit->random_seed;
1989		2709
1990	my $data = cf::to_json $rmp;	2710	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2711	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2712	my $meta = "$RANDOMDIR/$md5.meta";
1993		2713
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2714	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2715	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2716	undef $fh;
1997	aio_rename "$meta~", $meta;	2717	aio_rename "$meta~", $meta;
1998		2718
		2719	my $slaying = "?random/$md5";
		2720
		2721	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2722	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2723	$exit->msg (undef);
		2724	}
2001	}	2725	}
2002	}	2726	}
2003		2727
2004	sub cf::object::player::enter_exit {	2728	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2729	my ($self, $exit) = @_;
2006		2730
2007	return unless $self->type == cf::PLAYER;	2731	return unless $self->type == cf::PLAYER;
2008		2732
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2733	$self->enter_link;
2021		2734
2022	(async {	2735	(async {
2023	$self->deactivate_recursive; # just to be sure	2736	$Coro::current->{desc} = "enter_exit";
		2737
2024	unless (eval {	2738	unless (eval {
		2739	$self->deactivate_recursive; # just to be sure
		2740
		2741	# random map handling
		2742	{
		2743	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2744
		2745	prepare_random_map $exit
		2746	if $exit->slaying eq "/!";
		2747	}
		2748
		2749	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2750	my $x = $exit->stats->hp;
		2751	my $y = $exit->stats->sp;
		2752
2025	$self->goto ($slaying, $hp, $sp);	2753	$self->goto ($map, $x, $y);
2026		2754
		2755	# if exit is damned, update players death & WoR home-position
		2756	$self->contr->savebed ($map, $x, $y)
		2757	if $exit->flag (cf::FLAG_DAMNED);
		2758
2027	1;	2759	1
2028	}) {	2760	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2761	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2762	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2763	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2764	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2765
2034	warn "ERROR in enter_exit: $@";	2766	warn "ERROR in enter_exit: $@";
…		…
2053		2785
2054	utf8::encode $text;	2786	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2787	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2788	}
2057		2789
		2790	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2791
		2792	Send a drawinfo or msg packet to the client, formatting the msg for the
		2793	client if neccessary. C<$type> should be a string identifying the type of
		2794	the message, with C<log> being the default. If C<$color> is negative, suppress
		2795	the message unless the client supports the msg packet.
		2796
		2797	=cut
		2798
		2799	# non-persistent channels (usually the info channel)
		2800	our %CHANNEL = (
		2801	"c/motd" => {
		2802	id => "infobox",
		2803	title => "MOTD",
		2804	reply => undef,
		2805	tooltip => "The message of the day",
		2806	},
		2807	"c/identify" => {
		2808	id => "infobox",
		2809	title => "Identify",
		2810	reply => undef,
		2811	tooltip => "Items recently identified",
		2812	},
		2813	"c/examine" => {
		2814	id => "infobox",
		2815	title => "Examine",
		2816	reply => undef,
		2817	tooltip => "Signs and other items you examined",
		2818	},
		2819	"c/shopinfo" => {
		2820	id => "infobox",
		2821	title => "Shop Info",
		2822	reply => undef,
		2823	tooltip => "What your bargaining skill tells you about the shop",
		2824	},
		2825	"c/book" => {
		2826	id => "infobox",
		2827	title => "Book",
		2828	reply => undef,
		2829	tooltip => "The contents of a note or book",
		2830	},
		2831	"c/lookat" => {
		2832	id => "infobox",
		2833	title => "Look",
		2834	reply => undef,
		2835	tooltip => "What you saw there",
		2836	},
		2837	"c/who" => {
		2838	id => "infobox",
		2839	title => "Players",
		2840	reply => undef,
		2841	tooltip => "Shows players who are currently online",
		2842	},
		2843	"c/body" => {
		2844	id => "infobox",
		2845	title => "Body Parts",
		2846	reply => undef,
		2847	tooltip => "Shows which body parts you posess and are available",
		2848	},
		2849	"c/statistics" => {
		2850	id => "infobox",
		2851	title => "Statistics",
		2852	reply => undef,
		2853	tooltip => "Shows your primary statistics",
		2854	},
		2855	"c/skills" => {
		2856	id => "infobox",
		2857	title => "Skills",
		2858	reply => undef,
		2859	tooltip => "Shows your experience per skill and item power",
		2860	},
		2861	"c/shopitems" => {
		2862	id => "infobox",
		2863	title => "Shop Items",
		2864	reply => undef,
		2865	tooltip => "Shows the items currently for sale in this shop",
		2866	},
		2867	"c/resistances" => {
		2868	id => "infobox",
		2869	title => "Resistances",
		2870	reply => undef,
		2871	tooltip => "Shows your resistances",
		2872	},
		2873	"c/pets" => {
		2874	id => "infobox",
		2875	title => "Pets",
		2876	reply => undef,
		2877	tooltip => "Shows information abotu your pets/a specific pet",
		2878	},
		2879	"c/perceiveself" => {
		2880	id => "infobox",
		2881	title => "Perceive Self",
		2882	reply => undef,
		2883	tooltip => "You gained detailed knowledge about yourself",
		2884	},
		2885	"c/uptime" => {
		2886	id => "infobox",
		2887	title => "Uptime",
		2888	reply => undef,
		2889	tooltip => "How long the server has been running since last restart",
		2890	},
		2891	"c/mapinfo" => {
		2892	id => "infobox",
		2893	title => "Map Info",
		2894	reply => undef,
		2895	tooltip => "Information related to the maps",
		2896	},
		2897	"c/party" => {
		2898	id => "party",
		2899	title => "Party",
		2900	reply => "gsay ",
		2901	tooltip => "Messages and chat related to your party",
		2902	},
		2903	"c/death" => {
		2904	id => "death",
		2905	title => "Death",
		2906	reply => undef,
		2907	tooltip => "Reason for and more info about your most recent death",
		2908	},
		2909	"c/say" => $SAY_CHANNEL,
		2910	"c/chat" => $CHAT_CHANNEL,
		2911	);
		2912
		2913	sub cf::client::send_msg {
		2914	my ($self, $channel, $msg, $color, @extra) = @_;
		2915
		2916	$msg = $self->pl->expand_cfpod ($msg)
		2917	unless $color & cf::NDI_VERBATIM;
		2918
		2919	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2920
		2921	# check predefined channels, for the benefit of C
		2922	if ($CHANNEL{$channel}) {
		2923	$channel = $CHANNEL{$channel};
		2924
		2925	$self->ext_msg (channel_info => $channel);
		2926	$channel = $channel->{id};
		2927
		2928	} elsif (ref $channel) {
		2929	# send meta info to client, if not yet sent
		2930	unless (exists $self->{channel}{$channel->{id}}) {
		2931	$self->{channel}{$channel->{id}} = $channel;
		2932	$self->ext_msg (channel_info => $channel);
		2933	}
		2934
		2935	$channel = $channel->{id};
		2936	}
		2937
		2938	return unless @extra || length $msg;
		2939
		2940	# default colour, mask it out
		2941	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2942	if $color & cf::NDI_DEF;
		2943
		2944	my $pkt = "msg "
		2945	. $self->{json_coder}->encode (
		2946	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2947	);
		2948
		2949	# try lzf for large packets
		2950	$pkt = "lzf " . Compress::LZF::compress $pkt
		2951	if 1024 <= length $pkt and $self->{can_lzf};
		2952
		2953	# split very large packets
		2954	if (8192 < length $pkt and $self->{can_lzf}) {
		2955	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2956	$pkt = "frag";
		2957	}
		2958
		2959	$self->send_packet ($pkt);
		2960	}
		2961
2058	=item $client->ext_event ($type, %msg)	2962	=item $client->ext_msg ($type, @msg)
2059		2963
2060	Sends an exti event to the client.	2964	Sends an ext event to the client.
2061		2965
2062	=cut	2966	=cut
2063		2967
2064	sub cf::client::ext_event($$%) {	2968	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2969	my ($self, $type, @msg) = @_;
2066		2970
		2971	if ($self->extcmd == 2) {
		2972	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2973	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2974	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2975	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2976	}
		2977	}
		2978
		2979	=item $client->ext_reply ($msgid, @msg)
		2980
		2981	Sends an ext reply to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_reply($$@) {
		2986	my ($self, $id, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2990	} elsif ($self->extcmd == 1) {
		2991	#TODO: version 1, remove
		2992	unshift @msg, msgtype => "reply", msgid => $id;
		2993	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2994	}
2069	}	2995	}
2070		2996
2071	=item $success = $client->query ($flags, "text", \&cb)	2997	=item $success = $client->query ($flags, "text", \&cb)
2072		2998
2073	Queues a query to the client, calling the given callback with	2999	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3000	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3001	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		3002
2077	Queries can fail, so check the return code. Or don't, as queries will become	3003	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	3004	become reliable at some point in the future.
2079		3005
2080	=cut	3006	=cut
2081		3007
2082	sub cf::client::query {	3008	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	3009	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	3017	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3018	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		3019
2094	$self->send_packet ($self->{query_queue}[0][0])	3020	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	3021	if @{ $self->{query_queue} } == 1;
		3022
		3023	1
2096	}	3024	}
2097		3025
2098	cf::client->attach (	3026	cf::client->attach (
		3027	on_connect => sub {
		3028	my ($ns) = @_;
		3029
		3030	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3031	},
2099	on_reply => sub {	3032	on_reply => sub {
2100	my ($ns, $msg) = @_;	3033	my ($ns, $msg) = @_;
2101		3034
2102	# this weird shuffling is so that direct followup queries	3035	# this weird shuffling is so that direct followup queries
2103	# get handled first	3036	# get handled first
…		…
2115	} else {	3048	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3050	}
2118	}	3051	}
2119	},	3052	},
		3053	on_exticmd => sub {
		3054	my ($ns, $buf) = @_;
		3055
		3056	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3057
		3058	if (ref $msg) {
		3059	my ($type, $reply, @payload) =
		3060	"ARRAY" eq ref $msg
		3061	? @$msg
		3062	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3063
		3064	my @reply;
		3065
		3066	if (my $cb = $EXTICMD{$type}) {
		3067	@reply = $cb->($ns, @payload);
		3068	}
		3069
		3070	$ns->ext_reply ($reply, @reply)
		3071	if $reply;
		3072
		3073	} else {
		3074	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3075	}
		3076
		3077	cf::override;
		3078	},
2120	);	3079	);
2121		3080
2122	=item $client->async (\&cb)	3081	=item $client->async (\&cb)
2123		3082
2124	Create a new coroutine, running the specified callback. The coroutine will	3083	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3124	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3125	our $safe_hole = new Safe::Hole;
2167		3126
2168	$SIG{FPE} = 'IGNORE';	3127	$SIG{FPE} = 'IGNORE';
2169		3128
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3129	$safe->permit_only (Opcode::opset qw(
		3130	:base_core :base_mem :base_orig :base_math
		3131	grepstart grepwhile mapstart mapwhile
		3132	sort time
		3133	));
2171		3134
2172	# here we export the classes and methods available to script code	3135	# here we export the classes and methods available to script code
2173		3136
2174	=pod	3137	=pod
2175		3138
2176	The following functions and methods are available within a safe environment:	3139	The following functions and methods are available within a safe environment:
2177		3140
2178	cf::object contr pay_amount pay_player map	3141	cf::object
		3142	contr pay_amount pay_player map x y force_find force_add destroy
		3143	insert remove name archname title slaying race decrease split
		3144	value
		3145
2179	cf::object::player player	3146	cf::object::player
2180	cf::player peaceful	3147	player
2181	cf::map trigger	3148
		3149	cf::player
		3150	peaceful
		3151
		3152	cf::map
		3153	trigger
2182		3154
2183	=cut	3155	=cut
2184		3156
2185	for (	3157	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3158	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3159	insert remove inv nrof name archname title slaying race
		3160	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3161	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3162	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3163	["cf::map" => qw(trigger)],
2190	) {	3164	) {
2191	no strict 'refs';	3165	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3166	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3167	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2210	my ($code, %vars) = @_;	3184	my ($code, %vars) = @_;
2211		3185
2212	my $qcode = $code;	3186	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3187	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3188	$qcode =~ s/\n/\\n/g;
		3189
		3190	%vars = (_dummy => 0) unless %vars;
2215		3191
2216	local $_;	3192	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;	3193	local @safe::cf::_safe_eval_args = values %vars;
2218		3194
2219	my $eval =	3195	my $eval =
…		…
2262	=back	3238	=back
2263		3239
2264	=cut	3240	=cut
2265		3241
2266	#############################################################################	3242	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	eval {
2420	local $SIG{__DIE__};
2421	local $SIG{__WARN__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	_exit 0;
2429	}
2430	}
2431
2432
2433
2434	#############################################################################
2435	# the server's init and main functions	3243	# the server's init and main functions
2436		3244
2437	sub load_facedata($) {	3245	sub load_facedata($) {
2438	my ($path) = @_;	3246	my ($path) = @_;
		3247
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2439		3253
2440	warn "loading facedata from $path\n";	3254	warn "loading facedata from $path\n";
2441		3255
2442	my $facedata;	3256	my $facedata;
2443	0 < aio_load $path, $facedata	3257	0 < aio_load $path, $facedata
…		…
2446	$facedata = Coro::Storable::thaw $facedata;	3260	$facedata = Coro::Storable::thaw $facedata;
2447		3261
2448	$facedata->{version} == 2	3262	$facedata->{version} == 2
2449	or cf::cleanup "$path: version mismatch, cannot proceed.";	3263	or cf::cleanup "$path: version mismatch, cannot proceed.";
2450		3264
		3265	# patch in the exptable
		3266	$facedata->{resource}{"res/exp_table"} = {
		3267	type => FT_RSRC,
		3268	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3269	};
		3270	cf::cede_to_tick;
		3271
2451	{	3272	{
2452	my $faces = $facedata->{faceinfo};	3273	my $faces = $facedata->{faceinfo};
2453		3274
2454	while (my ($face, $info) = each %$faces) {	3275	while (my ($face, $info) = each %$faces) {
2455	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3276	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3277
2456	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3278	cf::face::set_visibility $idx, $info->{visibility};
		3279	cf::face::set_magicmap $idx, $info->{magicmap};
2457	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3280	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2458	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3281	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2459	Coro::cede;	3282
		3283	cf::cede_to_tick;
2460	}	3284	}
2461		3285
2462	while (my ($face, $info) = each %$faces) {	3286	while (my ($face, $info) = each %$faces) {
2463	next unless $info->{smooth};	3287	next unless $info->{smooth};
		3288
2464	my $idx = cf::face::find $face	3289	my $idx = cf::face::find $face
2465	or next;	3290	or next;
		3291
2466	if (my $smooth = cf::face::find $info->{smooth}) {	3292	if (my $smooth = cf::face::find $info->{smooth}) {
		3293	cf::face::set_smooth $idx, $smooth;
2467	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3294	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2468	} else {	3295	} else {
2469	warn "smooth face '$info->{smooth}' not found for face '$face'";	3296	warn "smooth face '$info->{smooth}' not found for face '$face'";
2470	}	3297	}
2471	Coro::cede;	3298
		3299	cf::cede_to_tick;
2472	}	3300	}
2473	}	3301	}
2474		3302
2475	{	3303	{
2476	my $anims = $facedata->{animinfo};	3304	my $anims = $facedata->{animinfo};
2477		3305
2478	while (my ($anim, $info) = each %$anims) {	3306	while (my ($anim, $info) = each %$anims) {
2479	cf::anim::set $anim, $info->{frames}, $info->{facings};	3307	cf::anim::set $anim, $info->{frames}, $info->{facings};
2480	Coro::cede;	3308	cf::cede_to_tick;
2481	}	3309	}
2482		3310
2483	cf::anim::invalidate_all; # d'oh	3311	cf::anim::invalidate_all; # d'oh
2484	}	3312	}
2485		3313
		3314	{
		3315	# TODO: for gcfclient pleasure, we should give resources
		3316	# that gcfclient doesn't grok a >10000 face index.
		3317	my $res = $facedata->{resource};
		3318
		3319	while (my ($name, $info) = each %$res) {
		3320	if (defined $info->{type}) {
		3321	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3322	my $data;
		3323
		3324	if ($info->{type} & 1) {
		3325	# prepend meta info
		3326
		3327	my $meta = $enc->encode ({
		3328	name => $name,
		3329	%{ $info->{meta} || {} },
		3330	});
		3331
		3332	$data = pack "(w/a*)*", $meta, $info->{data};
		3333	} else {
		3334	$data = $info->{data};
		3335	}
		3336
		3337	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3338	cf::face::set_type $idx, $info->{type};
		3339	} else {
		3340	$RESOURCE{$name} = $info;
		3341	}
		3342
		3343	cf::cede_to_tick;
		3344	}
		3345	}
		3346
		3347	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3348
2486	1	3349	1
2487	}	3350	}
2488		3351
		3352	cf::global->attach (on_resource_update => sub {
		3353	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3354	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3355
		3356	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3357	my $sound = $soundconf->{compat}[$_]
		3358	or next;
		3359
		3360	my $face = cf::face::find "sound/$sound->[1]";
		3361	cf::sound::set $sound->[0] => $face;
		3362	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3363	}
		3364
		3365	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3366	my $face = cf::face::find "sound/$v";
		3367	cf::sound::set $k => $face;
		3368	}
		3369	}
		3370	});
		3371
		3372	register_exticmd fx_want => sub {
		3373	my ($ns, $want) = @_;
		3374
		3375	while (my ($k, $v) = each %$want) {
		3376	$ns->fx_want ($k, $v);
		3377	}
		3378	};
		3379
		3380	sub load_resource_file($) {
		3381	my $guard = lock_acquire "load_resource_file";
		3382
		3383	my $status = load_resource_file_ $_[0];
		3384	get_slot 0.1, 100;
		3385	cf::arch::commit_load;
		3386
		3387	$status
		3388	}
		3389
		3390	sub reload_regions {
		3391	# HACK to clear player env face cache, we need some signal framework
		3392	# for this (global event?)
		3393	%ext::player_env::MUSIC_FACE_CACHE = ();
		3394
		3395	load_resource_file "$MAPDIR/regions"
		3396	or die "unable to load regions file\n";
		3397
		3398	for (cf::region::list) {
		3399	$_->{match} = qr/$_->{match}/
		3400	if exists $_->{match};
		3401	}
		3402	}
		3403
2489	sub reload_facedata {	3404	sub reload_facedata {
2490	load_facedata sprintf "%s/facedata", cf::datadir	3405	load_facedata "$DATADIR/facedata"
2491	or die "unable to load facedata\n";	3406	or die "unable to load facedata\n";
2492	}	3407	}
2493		3408
2494	sub reload_regions {
2495	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2496	or die "unable to load regions file\n";
2497	}
2498
2499	sub reload_archetypes {	3409	sub reload_archetypes {
2500	load_resource_file sprintf "%s/archetypes", cf::datadir	3410	load_resource_file "$DATADIR/archetypes"
2501	or die "unable to load archetypes\n";	3411	or die "unable to load archetypes\n";
2502	}	3412	}
2503		3413
2504	sub reload_treasures {	3414	sub reload_treasures {
2505	load_resource_file sprintf "%s/treasures", cf::datadir	3415	load_resource_file "$DATADIR/treasures"
2506	or die "unable to load treasurelists\n";	3416	or die "unable to load treasurelists\n";
2507	}	3417	}
2508		3418
2509	sub reload_resources {	3419	sub reload_resources {
2510	warn "reloading resource files...\n";	3420	warn "reloading resource files...\n";
2511		3421
2512	reload_regions;
2513	reload_facedata;	3422	reload_facedata;
2514	reload_archetypes;	3423	reload_archetypes;
		3424	reload_regions;
2515	reload_treasures;	3425	reload_treasures;
2516		3426
2517	warn "finished reloading resource files\n";	3427	warn "finished reloading resource files\n";
2518	}	3428	}
2519		3429
2520	sub init {	3430	sub reload_config {
2521	reload_resources;	3431	warn "reloading config file...\n";
2522	}
2523		3432
2524	sub cfg_load {
2525	open my $fh, "<:utf8", cf::confdir . "/config"	3433	open my $fh, "<:utf8", "$CONFDIR/config"
2526	or return;	3434	or return;
2527		3435
2528	local $/;	3436	local $/;
2529	*CFG = YAML::Syck::Load <$fh>;	3437	*CFG = YAML::XS::Load scalar <$fh>;
2530		3438
2531	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3439	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2532		3440
2533	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3441	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2534	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3442	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2538	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3446	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2539	and die "WARNING: m(un)lockall failed: $!\n";	3447	and die "WARNING: m(un)lockall failed: $!\n";
2540	};	3448	};
2541	warn $@ if $@;	3449	warn $@ if $@;
2542	}	3450	}
		3451
		3452	warn "finished reloading resource files\n";
		3453	}
		3454
		3455	sub pidfile() {
		3456	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3457	or die "$PIDFILE: $!";
		3458	flock $fh, &Fcntl::LOCK_EX
		3459	or die "$PIDFILE: flock: $!";
		3460	$fh
		3461	}
		3462
		3463	# make sure only one server instance is running at any one time
		3464	sub atomic {
		3465	my $fh = pidfile;
		3466
		3467	my $pid = <$fh>;
		3468	kill 9, $pid if $pid > 0;
		3469
		3470	seek $fh, 0, 0;
		3471	print $fh $$;
		3472	}
		3473
		3474	sub main_loop {
		3475	warn "EV::loop starting\n";
		3476	if (1) {
		3477	EV::loop;
		3478	}
		3479	warn "EV::loop returned\n";
		3480	goto &main_loop unless $REALLY_UNLOOP;
2543	}	3481	}
2544		3482
2545	sub main {	3483	sub main {
		3484	cf::init_globals; # initialise logging
		3485
		3486	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3487	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3488	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3489	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3490
		3491	cf::init_experience;
		3492	cf::init_anim;
		3493	cf::init_attackmess;
		3494	cf::init_dynamic;
		3495
		3496	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3497
2546	# we must not ever block the main coroutine	3498	# we must not ever block the main coroutine
2547	local $Coro::idle = sub {	3499	local $Coro::idle = sub {
2548	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3500	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2549	(async {	3501	(async {
2550	Event::one_event;	3502	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3503	EV::loop EV::LOOP_ONESHOT;
2551	})->prio (Coro::PRIO_MAX);	3504	})->prio (Coro::PRIO_MAX);
2552	};	3505	};
2553		3506
2554	cfg_load;	3507	evthread_start IO::AIO::poll_fileno;
		3508
		3509	cf::sync_job {
		3510	reload_resources;
		3511	reload_config;
2555	db_init;	3512	db_init;
		3513
		3514	cf::load_settings;
		3515	cf::load_materials;
		3516	cf::init_uuid;
		3517	cf::init_signals;
		3518	cf::init_commands;
		3519	cf::init_skills;
		3520
		3521	cf::init_beforeplay;
		3522
		3523	atomic;
		3524
2556	load_extensions;	3525	load_extensions;
2557		3526
2558	$TICK_WATCHER->start;	3527	utime time, time, $RUNTIMEFILE;
2559	Event::loop;	3528
		3529	# no (long-running) fork's whatsoever before this point(!)
		3530	use POSIX ();
		3531	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3532
		3533	(pop @POST_INIT)->(0) while @POST_INIT;
		3534	};
		3535
		3536	main_loop;
2560	}	3537	}
2561		3538
2562	#############################################################################	3539	#############################################################################
2563	# initialisation and cleanup	3540	# initialisation and cleanup
2564		3541
2565	# install some emergency cleanup handlers	3542	# install some emergency cleanup handlers
2566	BEGIN {	3543	BEGIN {
		3544	our %SIGWATCHER = ();
2567	for my $signal (qw(INT HUP TERM)) {	3545	for my $signal (qw(INT HUP TERM)) {
2568	Event->signal (	3546	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2569	reentrant => 0,
2570	data => WF_AUTOCANCEL,
2571	signal => $signal,
2572	prio => 0,
2573	cb => sub {
2574	cf::cleanup "SIG$signal";	3547	cf::cleanup "SIG$signal";
2575	},
2576	);	3548	};
		3549	}
		3550	}
		3551
		3552	sub write_runtime_sync {
		3553	# first touch the runtime file to show we are still running:
		3554	# the fsync below can take a very very long time.
		3555
		3556	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3557
		3558	my $guard = cf::lock_acquire "write_runtime";
		3559
		3560	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3561	or return;
		3562
		3563	my $value = $cf::RUNTIME + 90 + 10;
		3564	# 10 is the runtime save interval, for a monotonic clock
		3565	# 60 allows for the watchdog to kill the server.
		3566
		3567	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3568	and return;
		3569
		3570	# always fsync - this file is important
		3571	aio_fsync $fh
		3572	and return;
		3573
		3574	# touch it again to show we are up-to-date
		3575	aio_utime $fh, undef, undef;
		3576
		3577	close $fh
		3578	or return;
		3579
		3580	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3581	and return;
		3582
		3583	warn "runtime file written.\n";
		3584
2577	}	3585	1
		3586	}
		3587
		3588	our $uuid_lock;
		3589	our $uuid_skip;
		3590
		3591	sub write_uuid_sync($) {
		3592	$uuid_skip ||= $_[0];
		3593
		3594	return if $uuid_lock;
		3595	local $uuid_lock = 1;
		3596
		3597	my $uuid = "$LOCALDIR/uuid";
		3598
		3599	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3600	or return;
		3601
		3602	my $value = uuid_seq uuid_cur;
		3603
		3604	unless ($value) {
		3605	warn "cowardly refusing to write zero uuid value!\n";
		3606	return;
		3607	}
		3608
		3609	my $value = uuid_str $value + $uuid_skip;
		3610	$uuid_skip = 0;
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	close $fh
		3620	or return;
		3621
		3622	aio_rename "$uuid~", $uuid
		3623	and return;
		3624
		3625	warn "uuid file written ($value).\n";
		3626
		3627	1
		3628
		3629	}
		3630
		3631	sub write_uuid($$) {
		3632	my ($skip, $sync) = @_;
		3633
		3634	$sync ? write_uuid_sync $skip
		3635	: async { write_uuid_sync $skip };
2578	}	3636	}
2579		3637
2580	sub emergency_save() {	3638	sub emergency_save() {
2581	my $freeze_guard = cf::freeze_mainloop;	3639	my $freeze_guard = cf::freeze_mainloop;
2582		3640
2583	warn "enter emergency perl save\n";	3641	warn "emergency_perl_save: enter\n";
2584		3642
2585	cf::sync_job {	3643	cf::sync_job {
		3644	# this is a trade-off: we want to be very quick here, so
		3645	# save all maps without fsync, and later call a global sync
		3646	# (which in turn might be very very slow)
		3647	local $USE_FSYNC = 0;
		3648
2586	# use a peculiar iteration method to avoid tripping on perl	3649	# use a peculiar iteration method to avoid tripping on perl
2587	# refcount bugs in for. also avoids problems with players	3650	# refcount bugs in for. also avoids problems with players
2588	# and maps saved/destroyed asynchronously.	3651	# and maps saved/destroyed asynchronously.
2589	warn "begin emergency player save\n";	3652	warn "emergency_perl_save: begin player save\n";
2590	for my $login (keys %cf::PLAYER) {	3653	for my $login (keys %cf::PLAYER) {
2591	my $pl = $cf::PLAYER{$login} or next;	3654	my $pl = $cf::PLAYER{$login} or next;
2592	$pl->valid or next;	3655	$pl->valid or next;
		3656	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2593	$pl->save;	3657	$pl->save;
2594	}	3658	}
2595	warn "end emergency player save\n";	3659	warn "emergency_perl_save: end player save\n";
2596		3660
2597	warn "begin emergency map save\n";	3661	warn "emergency_perl_save: begin map save\n";
2598	for my $path (keys %cf::MAP) {	3662	for my $path (keys %cf::MAP) {
2599	my $map = $cf::MAP{$path} or next;	3663	my $map = $cf::MAP{$path} or next;
2600	$map->valid or next;	3664	$map->valid or next;
2601	$map->save;	3665	$map->save;
2602	}	3666	}
2603	warn "end emergency map save\n";	3667	warn "emergency_perl_save: end map save\n";
2604		3668
2605	warn "begin emergency database checkpoint\n";	3669	warn "emergency_perl_save: begin database checkpoint\n";
2606	BDB::db_env_txn_checkpoint $DB_ENV;	3670	BDB::db_env_txn_checkpoint $DB_ENV;
2607	warn "end emergency database checkpoint\n";	3671	warn "emergency_perl_save: end database checkpoint\n";
		3672
		3673	warn "emergency_perl_save: begin write uuid\n";
		3674	write_uuid_sync 1;
		3675	warn "emergency_perl_save: end write uuid\n";
2608	};	3676	};
2609		3677
		3678	warn "emergency_perl_save: starting sync()\n";
		3679	IO::AIO::aio_sync sub {
		3680	warn "emergency_perl_save: finished sync()\n";
		3681	};
		3682
2610	warn "leave emergency perl save\n";	3683	warn "emergency_perl_save: leave\n";
2611	}	3684	}
2612		3685
2613	sub post_cleanup {	3686	sub post_cleanup {
2614	my ($make_core) = @_;	3687	my ($make_core) = @_;
2615		3688
2616	warn Carp::longmess "post_cleanup backtrace"	3689	warn Carp::longmess "post_cleanup backtrace"
2617	if $make_core;	3690	if $make_core;
		3691
		3692	my $fh = pidfile;
		3693	unlink $PIDFILE if <$fh> == $$;
		3694	}
		3695
		3696	# a safer delete_package, copied from Symbol
		3697	sub clear_package($) {
		3698	my $pkg = shift;
		3699
		3700	# expand to full symbol table name if needed
		3701	unless ($pkg =~ /^main::.*::$/) {
		3702	$pkg = "main$pkg" if $pkg =~ /^::/;
		3703	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3704	$pkg .= '::' unless $pkg =~ /::$/;
		3705	}
		3706
		3707	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3708	my $stem_symtab = *{$stem}{HASH};
		3709
		3710	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3711	or return;
		3712
		3713	# clear all symbols
		3714	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3715	for my $name (keys %$leaf_symtab) {
		3716	_gv_clear *{"$pkg$name"};
		3717	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3718	}
		3719	warn "cleared package $pkg\n";#d#
2618	}	3720	}
2619		3721
2620	sub do_reload_perl() {	3722	sub do_reload_perl() {
2621	# can/must only be called in main	3723	# can/must only be called in main
2622	if ($Coro::current != $Coro::main) {	3724	if ($Coro::current != $Coro::main) {
2623	warn "can only reload from main coroutine";	3725	warn "can only reload from main coroutine";
2624	return;	3726	return;
2625	}	3727	}
2626		3728
		3729	return if $RELOAD++;
		3730
		3731	my $t1 = EV::time;
		3732
		3733	while ($RELOAD) {
2627	warn "reloading...";	3734	warn "reloading...";
2628		3735
2629	warn "entering sync_job";	3736	warn "entering sync_job";
2630		3737
2631	cf::sync_job {	3738	cf::sync_job {
2632	cf::write_runtime; # external watchdog should not bark	3739	cf::write_runtime_sync; # external watchdog should not bark
2633	cf::emergency_save;	3740	cf::emergency_save;
2634	cf::write_runtime; # external watchdog should not bark	3741	cf::write_runtime_sync; # external watchdog should not bark
2635		3742
2636	warn "syncing database to disk";	3743	warn "syncing database to disk";
2637	BDB::db_env_txn_checkpoint $DB_ENV;	3744	BDB::db_env_txn_checkpoint $DB_ENV;
2638		3745
2639	# if anything goes wrong in here, we should simply crash as we already saved	3746	# if anything goes wrong in here, we should simply crash as we already saved
2640		3747
2641	warn "cancelling all WF_AUTOCANCEL watchers";
2642	for (Event::all_watchers) {
2643	$_->cancel if $_->data & WF_AUTOCANCEL;
2644	}
2645
2646	warn "flushing outstanding aio requests";	3748	warn "flushing outstanding aio requests";
2647	for (;;) {
2648	BDB::flush;
2649	IO::AIO::flush;
2650	Coro::cede;
2651	last unless IO::AIO::nreqs || BDB::nreqs;	3749	while (IO::AIO::nreqs || BDB::nreqs) {
2652	warn "iterate...";	3750	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2653	}
2654
2655	++$RELOAD;
2656
2657	warn "cancelling all extension coros";
2658	$_->cancel for values %EXT_CORO;
2659	%EXT_CORO = ();
2660
2661	warn "removing commands";
2662	%COMMAND = ();
2663
2664	warn "removing ext commands";
2665	%EXTCMD = ();
2666
2667	warn "unloading/nuking all extensions";
2668	for my $pkg (@EXTS) {
2669	warn "... unloading $pkg";
2670
2671	if (my $cb = $pkg->can ("unload")) {
2672	eval {
2673	$cb->($pkg);
2674	1
2675	} or warn "$pkg unloaded, but with errors: $@";
2676	}	3751	}
2677		3752
2678	warn "... nuking $pkg";	3753	warn "cancelling all extension coros";
2679	Symbol::delete_package $pkg;	3754	$_->cancel for values %EXT_CORO;
2680	}	3755	%EXT_CORO = ();
2681		3756
2682	warn "unloading all perl modules loaded from $LIBDIR";	3757	warn "removing commands";
2683	while (my ($k, $v) = each %INC) {	3758	%COMMAND = ();
2684	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2685		3759
		3760	warn "removing ext/exti commands";
		3761	%EXTCMD = ();
		3762	%EXTICMD = ();
		3763
		3764	warn "unloading/nuking all extensions";
		3765	for my $pkg (@EXTS) {
2686	warn "... unloading $k";	3766	warn "... unloading $pkg";
2687	delete $INC{$k};
2688		3767
2689	$k =~ s/\.pm$//;
2690	$k =~ s/\//::/g;
2691
2692	if (my $cb = $k->can ("unload_module")) {	3768	if (my $cb = $pkg->can ("unload")) {
		3769	eval {
2693	$cb->();	3770	$cb->($pkg);
		3771	1
		3772	} or warn "$pkg unloaded, but with errors: $@";
		3773	}
		3774
		3775	warn "... clearing $pkg";
		3776	clear_package $pkg;
2694	}	3777	}
2695		3778
2696	Symbol::delete_package $k;	3779	warn "unloading all perl modules loaded from $LIBDIR";
		3780	while (my ($k, $v) = each %INC) {
		3781	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3782
		3783	warn "... unloading $k";
		3784	delete $INC{$k};
		3785
		3786	$k =~ s/\.pm$//;
		3787	$k =~ s/\//::/g;
		3788
		3789	if (my $cb = $k->can ("unload_module")) {
		3790	$cb->();
		3791	}
		3792
		3793	clear_package $k;
2697	}	3794	}
2698		3795
2699	warn "getting rid of safe::, as good as possible";	3796	warn "getting rid of safe::, as good as possible";
2700	Symbol::delete_package "safe::$_"	3797	clear_package "safe::$_"
2701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3798	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2702		3799
2703	warn "unloading cf.pm \"a bit\"";	3800	warn "unloading cf.pm \"a bit\"";
2704	delete $INC{"cf.pm"};	3801	delete $INC{"cf.pm"};
		3802	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2705		3803
2706	# don't, removes xs symbols, too,	3804	# don't, removes xs symbols, too,
2707	# and global variables created in xs	3805	# and global variables created in xs
2708	#Symbol::delete_package __PACKAGE__;	3806	#clear_package __PACKAGE__;
2709		3807
2710	warn "unload completed, starting to reload now";	3808	warn "unload completed, starting to reload now";
2711		3809
2712	warn "reloading cf.pm";	3810	warn "reloading cf.pm";
2713	require cf;	3811	require cf;
2714	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3812	cf::_connect_to_perl_1;
2715		3813
2716	warn "loading config and database again";	3814	warn "loading config and database again";
2717	cf::cfg_load;	3815	cf::reload_config;
2718		3816
2719	warn "loading extensions";	3817	warn "loading extensions";
2720	cf::load_extensions;	3818	cf::load_extensions;
2721		3819
		3820	if ($REATTACH_ON_RELOAD) {
2722	warn "reattaching attachments to objects/players";	3821	warn "reattaching attachments to objects/players";
2723	_global_reattach; # objects, sockets	3822	_global_reattach; # objects, sockets
2724	warn "reattaching attachments to maps";	3823	warn "reattaching attachments to maps";
2725	reattach $_ for values %MAP;	3824	reattach $_ for values %MAP;
2726	warn "reattaching attachments to players";	3825	warn "reattaching attachments to players";
2727	reattach $_ for values %PLAYER;	3826	reattach $_ for values %PLAYER;
		3827	}
2728		3828
		3829	warn "running post_init jobs";
		3830	(pop @POST_INIT)->(1) while @POST_INIT;
		3831
2729	warn "leaving sync_job";	3832	warn "leaving sync_job";
2730		3833
2731	1	3834	1
2732	} or do {	3835	} or do {
2733	warn $@;	3836	warn $@;
2734	warn "error while reloading, exiting.";	3837	cf::cleanup "error while reloading, exiting.";
2735	exit 1;
2736	};	3838	};
2737		3839
2738	warn "reloaded";	3840	warn "reloaded";
		3841	--$RELOAD;
		3842	}
		3843
		3844	$t1 = EV::time - $t1;
		3845	warn "reload completed in ${t1}s\n";
2739	};	3846	};
2740		3847
2741	our $RELOAD_WATCHER; # used only during reload	3848	our $RELOAD_WATCHER; # used only during reload
2742		3849
2743	sub reload_perl() {	3850	sub reload_perl() {
2744	# doing reload synchronously and two reloads happen back-to-back,	3851	# doing reload synchronously and two reloads happen back-to-back,
2745	# coro crashes during coro_state_free->destroy here.	3852	# coro crashes during coro_state_free->destroy here.
2746		3853
2747	$RELOAD_WATCHER ||= Event->timer (	3854	$RELOAD_WATCHER ||= cf::async {
2748	reentrant => 0,	3855	Coro::AIO::aio_wait cache_extensions;
2749	after => 0,	3856
2750	data => WF_AUTOCANCEL,	3857	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2751	cb => sub {
2752	do_reload_perl;	3858	do_reload_perl;
2753	undef $RELOAD_WATCHER;	3859	undef $RELOAD_WATCHER;
2754	},	3860	};
2755	);	3861	};
2756	}	3862	}
2757		3863
2758	register_command "reload" => sub {	3864	register_command "reload" => sub {
2759	my ($who, $arg) = @_;	3865	my ($who, $arg) = @_;
2760		3866
2761	if ($who->flag (FLAG_WIZ)) {	3867	if ($who->flag (FLAG_WIZ)) {
2762	$who->message ("reloading server.");	3868	$who->message ("reloading server.");
		3869	async {
		3870	$Coro::current->{desc} = "perl_reload";
2763	async { reload_perl };	3871	reload_perl;
		3872	};
2764	}	3873	}
2765	};	3874	};
2766		3875
2767	unshift @INC, $LIBDIR;	3876	unshift @INC, $LIBDIR;
2768		3877
…		…
2770		3879
2771	our @WAIT_FOR_TICK;	3880	our @WAIT_FOR_TICK;
2772	our @WAIT_FOR_TICK_BEGIN;	3881	our @WAIT_FOR_TICK_BEGIN;
2773		3882
2774	sub wait_for_tick {	3883	sub wait_for_tick {
2775	return unless $TICK_WATCHER->is_active;
2776	return if $Coro::current == $Coro::main;	3884	return if tick_inhibit || $Coro::current == $Coro::main;
2777		3885
2778	my $signal = new Coro::Signal;	3886	my $signal = new Coro::Signal;
2779	push @WAIT_FOR_TICK, $signal;	3887	push @WAIT_FOR_TICK, $signal;
2780	$signal->wait;	3888	$signal->wait;
2781	}	3889	}
2782		3890
2783	sub wait_for_tick_begin {	3891	sub wait_for_tick_begin {
2784	return unless $TICK_WATCHER->is_active;
2785	return if $Coro::current == $Coro::main;	3892	return if tick_inhibit || $Coro::current == $Coro::main;
2786		3893
2787	my $signal = new Coro::Signal;	3894	my $signal = new Coro::Signal;
2788	push @WAIT_FOR_TICK_BEGIN, $signal;	3895	push @WAIT_FOR_TICK_BEGIN, $signal;
2789	$signal->wait;	3896	$signal->wait;
2790	}	3897	}
2791		3898
2792	$TICK_WATCHER = Event->timer (	3899	sub tick {
2793	reentrant => 0,
2794	parked => 1,
2795	prio => 0,
2796	at => $NEXT_TICK || $TICK,
2797	data => WF_AUTOCANCEL,
2798	cb => sub {
2799	if ($Coro::current != $Coro::main) {	3900	if ($Coro::current != $Coro::main) {
2800	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3901	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2801	unless ++$bug_warning > 10;	3902	unless ++$bug_warning > 10;
2802	return;	3903	return;
2803	}	3904	}
2804		3905
2805	$NOW = Event::time;
2806
2807	cf::server_tick; # one server iteration	3906	cf::server_tick; # one server iteration
2808		3907
2809	$RUNTIME += $TICK;
2810	$NEXT_TICK += $TICK;
2811
2812	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3908	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2813	$NEXT_RUNTIME_WRITE = $NOW + 10;	3909	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2814	Coro::async_pool {	3910	Coro::async_pool {
		3911	$Coro::current->{desc} = "runtime saver";
2815	write_runtime	3912	write_runtime_sync
2816	or warn "ERROR: unable to write runtime file: $!";	3913	or warn "ERROR: unable to write runtime file: $!";
2817	};
2818	}	3914	};
		3915	}
2819		3916
2820	# my $AFTER = Event::time;
2821	# warn $AFTER - $NOW;#d#
2822
2823	# if we are delayed by four ticks or more, skip them all
2824	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2825
2826	$TICK_WATCHER->at ($NEXT_TICK);
2827	$TICK_WATCHER->start;
2828
2829	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3917	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2830	$sig->send;	3918	$sig->send;
2831	}	3919	}
2832	while (my $sig = shift @WAIT_FOR_TICK) {	3920	while (my $sig = shift @WAIT_FOR_TICK) {
2833	$sig->send;	3921	$sig->send;
2834	}
2835
2836	_post_tick;
2837	},	3922	}
2838	);	3923
		3924	$LOAD = ($NOW - $TICK_START) / $TICK;
		3925	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3926
		3927	if (0) {
		3928	if ($NEXT_TICK) {
		3929	my $jitter = $TICK_START - $NEXT_TICK;
		3930	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3931	warn "jitter $JITTER\n";#d#
		3932	}
		3933	}
		3934	}
2839		3935
2840	{	3936	{
2841	BDB::max_poll_time $TICK * 0.1;	3937	# configure BDB
2842	$BDB_POLL_WATCHER = Event->io (	3938
2843	reentrant => 0,
2844	fd => BDB::poll_fileno,
2845	poll => 'r',
2846	prio => 0,
2847	data => WF_AUTOCANCEL,
2848	cb => \&BDB::poll_cb,
2849	);
2850	BDB::min_parallel 8;	3939	BDB::min_parallel 8;
2851		3940	BDB::max_poll_reqs $TICK * 0.1;
2852	BDB::set_sync_prepare {	3941	$AnyEvent::BDB::WATCHER->priority (1);
2853	my $status;
2854	my $current = $Coro::current;
2855	(
2856	sub {
2857	$status = $!;
2858	$current->ready; undef $current;
2859	},
2860	sub {
2861	Coro::schedule while defined $current;
2862	$! = $status;
2863	},
2864	)
2865	};
2866		3942
2867	unless ($DB_ENV) {	3943	unless ($DB_ENV) {
2868	$DB_ENV = BDB::db_env_create;	3944	$DB_ENV = BDB::db_env_create;
		3945	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3946	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3947	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3948	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3949	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2869		3950
2870	cf::sync_job {	3951	cf::sync_job {
2871	eval {	3952	eval {
2872	BDB::db_env_open	3953	BDB::db_env_open
2873	$DB_ENV,	3954	$DB_ENV,
2874	$BDB_ENV_DIR,	3955	$BDBDIR,
2875	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3956	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2876	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3957	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2877	0666;	3958	0666;
2878		3959
2879	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3960	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2880
2881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2882	$DB_ENV->set_lk_detect;
2883	};	3961	};
2884		3962
2885	cf::cleanup "db_env_open(db): $@" if $@;	3963	cf::cleanup "db_env_open(db): $@" if $@;
2886	};	3964	};
2887	}	3965	}
		3966
		3967	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3968	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3969	};
		3970	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3971	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3972	};
		3973	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3974	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3975	};
2888	}	3976	}
2889		3977
2890	{	3978	{
		3979	# configure IO::AIO
		3980
2891	IO::AIO::min_parallel 8;	3981	IO::AIO::min_parallel 8;
2892
2893	undef $Coro::AIO::WATCHER;
2894	IO::AIO::max_poll_time $TICK * 0.1;	3982	IO::AIO::max_poll_time $TICK * 0.1;
2895	$AIO_POLL_WATCHER = Event->io (	3983	undef $AnyEvent::AIO::WATCHER;
2896	reentrant => 0,	3984	}
2897	data => WF_AUTOCANCEL,	3985
2898	fd => IO::AIO::poll_fileno,	3986	my $_log_backtrace;
2899	poll => 'r',	3987
2900	prio => 6,	3988	sub _log_backtrace {
2901	cb => \&IO::AIO::poll_cb,	3989	my ($msg, @addr) = @_;
2902	);	3990
		3991	$msg =~ s/\n//;
		3992
		3993	# limit the # of concurrent backtraces
		3994	if ($_log_backtrace < 2) {
		3995	++$_log_backtrace;
		3996	my $perl_bt = Carp::longmess $msg;
		3997	async {
		3998	$Coro::current->{desc} = "abt $msg";
		3999
		4000	my @bt = fork_call {
		4001	@addr = map { sprintf "%x", $_ } @addr;
		4002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4004	or die "addr2line: $!";
		4005
		4006	my @funcs;
		4007	my @res = <$fh>;
		4008	chomp for @res;
		4009	while (@res) {
		4010	my ($func, $line) = splice @res, 0, 2, ();
		4011	push @funcs, "[$func] $line";
		4012	}
		4013
		4014	@funcs
		4015	};
		4016
		4017	LOG llevInfo, "[ABT] $perl_bt\n";
		4018	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4019	LOG llevInfo, "[ABT] $_\n" for @bt;
		4020	--$_log_backtrace;
		4021	};
		4022	} else {
		4023	LOG llevInfo, "[ABT] $msg\n";
		4024	LOG llevInfo, "[ABT] [suppressed]\n";
		4025	}
2903	}	4026	}
2904		4027
2905	# load additional modules	4028	# load additional modules
2906	use cf::pod;	4029	require "cf/$_.pm" for @EXTRA_MODULES;
		4030	cf::_connect_to_perl_2;
2907		4031
2908	END { cf::emergency_save }	4032	END { cf::emergency_save }
2909		4033
2910	1	4034	1
2911		4035

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