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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.252 by root, Wed Apr 18 15:28:18 2007 UTC vs.
Revision 1.457 by root, Wed Oct 1 05:50:19 2008 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
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
15	use Coro 3.61 ();	37	use Coro ();
16	use Coro::State;	38	use Coro::State;
17	use Coro::Handle;	39	use Coro::Handle;
		40	use Coro::EV;
18	use Coro::Event;	41	use Coro::AnyEvent;
19	use Coro::Timer;	42	use Coro::Timer;
20	use Coro::Signal;	43	use Coro::Signal;
21	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
22	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
23	use Coro::Storable;	48	use Coro::Storable;
		49	use Coro::Util ();
24		50
		51	use JSON::XS 2.01 ();
25	use BDB ();	52	use BDB ();
26	use Data::Dumper;	53	use Data::Dumper;
27	use Digest::MD5;	54	use Digest::MD5;
28	use Fcntl;	55	use Fcntl;
29	use YAML::Syck ();	56	use YAML ();
30	use IO::AIO 2.32 ();	57	use IO::AIO ();
31	use Time::HiRes;	58	use Time::HiRes;
32	use Compress::LZF;	59	use Compress::LZF;
		60	use Digest::MD5 ();
		61
		62	AnyEvent::detect;
33		63
34	# configure various modules to our taste	64	# configure various modules to our taste
35	#	65	#
36	$Storable::canonical = 1; # reduce rsync transfers	66	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		68
		69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	# make sure c-lzf reinitialises itself
		72	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	73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39
40	$Event::Eval = 1; # no idea why this is required, but it is
41
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		74
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		76
49	our %COMMAND = ();	77	our %COMMAND = ();
50	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
51		79
52	our @EXTS = (); # list of extension package names	80	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	83	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	84	our %EXT_MAP = (); # pluggable maps
56		85
57	our $RELOAD; # number of reloads so far	86	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	87	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	88
		89	our $CONFDIR = confdir;
		90	our $DATADIR = datadir;
		91	our $LIBDIR = "$DATADIR/ext";
		92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
60		104
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	105	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	106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	107	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
68		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	112	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	113	our $DB_ENV;
71		114
72	our %CFG;	115	our %CFG;
73		116
74	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
76		120
77	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	123	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		124
83	# used to convert map paths into valid unix filenames by replacing / by ∕	125	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		127
		128	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		129	our $LOADAVG; # same thing, but with alpha-smoothing
		130	our $JITTER; # average jitter
		131	our $TICK_START; # for load detecting purposes
		132
		133	our @POST_INIT;
		134
		135	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
		136
86	binmode STDOUT;	137	binmode STDOUT;
87	binmode STDERR;	138	binmode STDERR;
88		139
89	# read virtual server time, if available	140	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	141	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	142	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	143	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	144	$RUNTIME = <$fh> + 0.;
94	}	145	}
95		146
96	mkdir cf::localdir;	147	mkdir $_
97	mkdir cf::localdir . "/" . cf::playerdir;	148	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir cf::localdir . "/" . cf::tmpdir;
99	mkdir cf::localdir . "/" . cf::uniquedir;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		149
103	our $EMERGENCY_POSITION;	150	our $EMERGENCY_POSITION;
104		151
105	sub cf::map::normalise;	152	sub cf::map::normalise;
106		153
…		…
117	=item $cf::RUNTIME	164	=item $cf::RUNTIME
118		165
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	166	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	167	every server tick.
121		168
122	=item $cf::LIBDIR	169	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		170	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		171	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		172
124	The perl library directory, where extensions and cf-specific modules can	173	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	174	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		175	unique-items directory, player file directory, random maps directory and
		176	database environment.
126		177
127	=item $cf::NOW	178	=item $cf::NOW
128		179
129	The time of the last (current) server tick.	180	The time of the last (current) server tick.
130		181
131	=item $cf::TICK	182	=item $cf::TICK
132		183
133	The interval between server ticks, in seconds.	184	The interval between server ticks, in seconds.
134		185
		186	=item $cf::LOADAVG
		187
		188	The current CPU load on the server (alpha-smoothed), as a value between 0
		189	(none) and 1 (overloaded), indicating how much time is spent on processing
		190	objects per tick. Healthy values are < 0.5.
		191
		192	=item $cf::LOAD
		193
		194	The raw value load value from the last tick.
		195
135	=item %cf::CFG	196	=item %cf::CFG
136		197
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	198	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	199	from wherever your confdir points to.
139		200
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	201	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		202
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	203	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	204	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.	205	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		206
		207	=item @cf::INVOKE_RESULTS
		208
		209	This array contains the results of the last C<invoke ()> call. When
		210	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		211	that call.
		212
146	=back	213	=back
147		214
148	=cut	215	=cut
149		216
150	BEGIN {	217	BEGIN {
…		…
152	my $msg = join "", @_;	219	my $msg = join "", @_;
153		220
154	$msg .= "\n"	221	$msg .= "\n"
155	unless $msg =~ /\n$/;	222	unless $msg =~ /\n$/;
156		223
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	224	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		225
159	utf8::encode $msg;
160	LOG llevError, $msg;	226	LOG llevError, $msg;
161	};	227	};
162	}	228	}
		229
		230	$Coro::State::DIEHOOK = sub {
		231	return unless $^S eq 0; # "eq", not "=="
		232
		233	if ($Coro::current == $Coro::main) {#d#
		234	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		235	return;#d#
		236	}#d#
		237
		238	# kill coroutine otherwise
		239	warn Carp::longmess $_[0];
		240	Coro::terminate
		241	};
		242
		243	$SIG{__DIE__} = sub { }; #d#?
163		244
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	245	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	246	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	247	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	248	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	249	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		250	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	251	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		252
171	# we bless all objects into (empty) derived classes to force a method lookup	253	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	254	# within the Safe compartment.
173	for my $pkg (qw(	255	for my $pkg (qw(
174	cf::global cf::attachable	256	cf::global cf::attachable
175	cf::object cf::object::player	257	cf::object cf::object::player
176	cf::client cf::player	258	cf::client cf::player
177	cf::arch cf::living	259	cf::arch cf::living
		260	cf::map cf::mapspace
178	cf::map cf::party cf::region	261	cf::party cf::region
179	)) {	262	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	263	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	264	}
183		265
184	$Event::DIED = sub {	266	$EV::DIED = sub {
185	warn "error in event callback: @_";	267	warn "error in event callback: @_";
186	};	268	};
		269
		270	#############################################################################
187		271
188	=head2 UTILITY FUNCTIONS	272	=head2 UTILITY FUNCTIONS
189		273
190	=over 4	274	=over 4
191		275
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	294	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	295	$d
212	} || "[unable to dump $_[0]: '$@']";	296	} || "[unable to dump $_[0]: '$@']";
213	}	297	}
214		298
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	299	=item $ref = cf::decode_json $json
218		300
219	Converts a JSON string into the corresponding perl data structure.	301	Converts a JSON string into the corresponding perl data structure.
220		302
221	=item $json = cf::to_json $ref	303	=item $json = cf::encode_json $ref
222		304
223	Converts a perl data structure into its JSON representation.	305	Converts a perl data structure into its JSON representation.
		306
		307	=cut
		308
		309	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		310
		311	sub encode_json($) { $json_coder->encode ($_[0]) }
		312	sub decode_json($) { $json_coder->decode ($_[0]) }
		313
		314	=item cf::post_init { BLOCK }
		315
		316	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		317	but I<before> the server starts ticking again.
		318
		319	The cdoeblock will have a single boolean argument to indicate whether this
		320	is a reload or not.
		321
		322	=cut
		323
		324	sub post_init(&) {
		325	push @POST_INIT, shift;
		326	}
224		327
225	=item cf::lock_wait $string	328	=item cf::lock_wait $string
226		329
227	Wait until the given lock is available. See cf::lock_acquire.	330	Wait until the given lock is available. See cf::lock_acquire.
228		331
…		…
231	Wait until the given lock is available and then acquires it and returns	334	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,	335	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	336	for example when the coroutine gets canceled), the lock is automatically
234	returned.	337	returned.
235		338
		339	Locks are *not* recursive, locking from the same coro twice results in a
		340	deadlocked coro.
		341
236	Lock names should begin with a unique identifier (for example, cf::map::find	342	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	343	uses map_find and cf::map::load uses map_load).
238		344
		345	=item $locked = cf::lock_active $string
		346
		347	Return true if the lock is currently active, i.e. somebody has locked it.
		348
239	=cut	349	=cut
240		350
241	our %LOCK;	351	our %LOCK;
		352	our %LOCKER;#d#
242		353
243	sub lock_wait($) {	354	sub lock_wait($) {
244	my ($key) = @_;	355	my ($key) = @_;
245		356
		357	if ($LOCKER{$key} == $Coro::current) {#d#
		358	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		359	return;#d#
		360	}#d#
		361
246	# wait for lock, if any	362	# wait for lock, if any
247	while ($LOCK{$key}) {	363	while ($LOCK{$key}) {
		364	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
248	push @{ $LOCK{$key} }, $Coro::current;	365	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;	366	Coro::schedule;
250	}	367	}
251	}	368	}
252		369
…		…
255		372
256	# wait, to be sure we are not locked	373	# wait, to be sure we are not locked
257	lock_wait $key;	374	lock_wait $key;
258		375
259	$LOCK{$key} = [];	376	$LOCK{$key} = [];
		377	$LOCKER{$key} = $Coro::current;#d#
260		378
261	Coro::guard {	379	Coro::guard {
		380	delete $LOCKER{$key};#d#
262	# wake up all waiters, to be on the safe side	381	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	382	$_->ready for @{ delete $LOCK{$key} };
264	}	383	}
265	}	384	}
266		385
		386	sub lock_active($) {
		387	my ($key) = @_;
		388
		389	! ! $LOCK{$key}
		390	}
		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	Coro::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	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1178	aio_close $fh;
775		1179
776	if (@$objs) {	1180	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1183	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1184	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1185	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	1186	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1187	aio_rename "$filename.pst~", "$filename.pst";
784	}	1188	}
785	} else {	1189	} else {
786	aio_unlink "$filename.pst";	1190	aio_unlink "$filename.pst";
787	}	1191	}
788		1192
789	aio_rename "$filename~", $filename;	1193	aio_rename "$filename~", $filename;
		1194
		1195	$filename =~ s%/[^/]+$%%;
		1196	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1197	} else {
791	warn "FATAL: $filename~: $!\n";	1198	warn "FATAL: $filename~: $!\n";
792	}	1199	}
793	} else {	1200	} else {
794	aio_unlink $filename;	1201	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1202	aio_unlink "$filename.pst";
796	}	1203	}
797	}	1204	};
798	}	1205	}
799		1206
800	sub object_freezer_as_string {	1207	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1208	my ($rdata, $objs) = @_;
802		1209
…		…
814	or return;	1221	or return;
815		1222
816	unless (aio_stat "$filename.pst") {	1223	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1224	(aio_load "$filename.pst", $av) >= 0
818	or return;	1225	or return;
		1226
819	$av = eval { (Storable::thaw $av)->{objs} };	1227	my $st = eval { Coro::Storable::thaw $av };
		1228	$av = $st->{objs};
820	}	1229	}
821		1230
		1231	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1232	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1233	$decname, length $data, scalar @{$av || []};
		1234
824	return ($data, $av);	1235	($data, $av)
825	}	1236	}
		1237
		1238	=head2 COMMAND CALLBACKS
		1239
		1240	=over 4
		1241
		1242	=cut
826		1243
827	#############################################################################	1244	#############################################################################
828	# command handling &c	1245	# command handling &c
829		1246
830	=item cf::register_command $name => \&callback($ob,$args);	1247	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1260	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1261	}
845		1262
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1263	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1264
848	Register a callbackf ro execution when the client sends an extcmd packet.	1265	Register a callback for execution when the client sends an (synchronous)
		1266	extcmd packet. Ext commands will be processed in the order they are
		1267	received by the server, like other user commands. The first argument is
		1268	the logged-in player. Ext commands can only be processed after a player
		1269	has logged in successfully.
849		1270
850	If the callback returns something, it is sent back as if reply was being	1271	If the callback returns something, it is sent back as if reply was being
851	called.	1272	called.
852		1273
		1274	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1275
		1276	Register a callback for execution when the client sends an (asynchronous)
		1277	exticmd packet. Exti commands are processed by the server as soon as they
		1278	are received, i.e. out of order w.r.t. other commands. The first argument
		1279	is a client socket. Exti commands can be received anytime, even before
		1280	log-in.
		1281
		1282	If the callback returns something, it is sent back as if reply was being
		1283	called.
		1284
853	=cut	1285	=cut
854		1286
855	sub register_extcmd {	1287	sub register_extcmd {
856	my ($name, $cb) = @_;	1288	my ($name, $cb) = @_;
857		1289
858	$EXTCMD{$name} = $cb;	1290	$EXTCMD{$name} = $cb;
859	}	1291	}
		1292
		1293	sub register_exticmd {
		1294	my ($name, $cb) = @_;
		1295
		1296	$EXTICMD{$name} = $cb;
		1297	}
		1298
		1299	use File::Glob ();
860		1300
861	cf::player->attach (	1301	cf::player->attach (
862	on_command => sub {	1302	on_command => sub {
863	my ($pl, $name, $params) = @_;	1303	my ($pl, $name, $params) = @_;
864		1304
…		…
872	cf::override;	1312	cf::override;
873	},	1313	},
874	on_extcmd => sub {	1314	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1315	my ($pl, $buf) = @_;
876		1316
877	my $msg = eval { from_json $buf };	1317	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1318
879	if (ref $msg) {	1319	if (ref $msg) {
		1320	my ($type, $reply, @payload) =
		1321	"ARRAY" eq ref $msg
		1322	? @$msg
		1323	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1324
		1325	my @reply;
		1326
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1327	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1328	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1329	}
		1330
		1331	$pl->ext_reply ($reply, @reply)
		1332	if $reply;
		1333
885	} else {	1334	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1335	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1336	}
888		1337
889	cf::override;	1338	cf::override;
890	},	1339	},
891	);	1340	);
892		1341
		1342	# "readahead" all extensions
893	sub load_extension {	1343	sub cache_extensions {
894	my ($path) = @_;	1344	my $grp = IO::AIO::aio_group;
895		1345
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1346	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
897	my $base = $1;	1347	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1348	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	}	1349	}
921	die $@;
922	}	1350	};
923		1351
924	push @EXTS, $pkg;	1352	$grp
925	}	1353	}
926		1354
927	sub load_extensions {	1355	sub load_extensions {
		1356	cf::sync_job {
		1357	my %todo;
		1358
928	for my $ext (<$LIBDIR/*.ext>) {	1359	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1360	next unless -r $path;
930	eval {	1361
931	load_extension $ext;	1362	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1363	my $base = $1;
		1364	my $pkg = $1;
		1365	$pkg =~ s/[^[:word:]]/_/g;
		1366	$pkg = "ext::$pkg";
		1367
		1368	open my $fh, "<:utf8", $path
		1369	or die "$path: $!";
		1370
		1371	my $source = do { local $/; <$fh> };
		1372
		1373	my %ext = (
		1374	path => $path,
		1375	base => $base,
		1376	pkg => $pkg,
		1377	);
		1378
		1379	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1380	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1381
		1382	$ext{source} =
		1383	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1384	. "#line 1 \"$path\"\n{\n"
		1385	. $source
		1386	. "\n};\n1";
		1387
		1388	$todo{$base} = \%ext;
		1389	}
		1390
		1391	my %done;
		1392	while (%todo) {
		1393	my $progress;
		1394
		1395	while (my ($k, $v) = each %todo) {
		1396	for (split /,\s*/, $v->{meta}{depends}) {
		1397	goto skip
		1398	unless exists $done{$_};
		1399	}
		1400
		1401	warn "... loading '$k' into '$v->{pkg}'\n";
		1402
		1403	unless (eval $v->{source}) {
		1404	my $msg = $@ ? "$v->{path}: $@\n"
		1405	: "$v->{base}: extension inactive.\n";
		1406
		1407	if (exists $v->{meta}{mandatory}) {
		1408	warn $msg;
		1409	cf::cleanup "mandatory extension failed to load, exiting.";
		1410	}
		1411
		1412	warn $msg;
		1413	}
		1414
		1415	$done{$k} = delete $todo{$k};
		1416	push @EXTS, $v->{pkg};
		1417	$progress = 1;
932	1	1418	}
933	} or warn "$ext not loaded: $@";	1419
		1420	skip:
		1421	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1422	unless $progress;
		1423	}
934	}	1424	};
935	}	1425	}
936		1426
937	#############################################################################	1427	#############################################################################
938		1428
		1429	=back
		1430
939	=head2 CORE EXTENSIONS	1431	=head2 CORE EXTENSIONS
940		1432
941	Functions and methods that extend core crossfire objects.	1433	Functions and methods that extend core deliantra objects.
942		1434
943	=cut	1435	=cut
944		1436
945	package cf::player;	1437	package cf::player;
946		1438
…		…
948		1440
949	=head3 cf::player	1441	=head3 cf::player
950		1442
951	=over 4	1443	=over 4
952		1444
		1445	=item cf::player::num_playing
		1446
		1447	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1448
		1449	=cut
		1450
		1451	sub num_playing {
		1452	scalar grep
		1453	$_->ob->map
		1454	&& !$_->hidden
		1455	&& !$_->ob->flag (cf::FLAG_WIZ),
		1456	cf::player::list
		1457	}
		1458
953	=item cf::player::find $login	1459	=item cf::player::find $login
954		1460
955	Returns the given player object, loading it if necessary (might block).	1461	Returns the given player object, loading it if necessary (might block).
956		1462
957	=cut	1463	=cut
958		1464
959	sub playerdir($) {	1465	sub playerdir($) {
960	cf::localdir	1466	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1467	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1468	}
966		1469
967	sub path($) {	1470	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1471	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1481
979	sub exists($) {	1482	sub exists($) {
980	my ($login) = @_;	1483	my ($login) = @_;
981		1484
982	$cf::PLAYER{$login}	1485	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1486	or !aio_stat path $login
984	}	1487	}
985		1488
986	sub find($) {	1489	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1490	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1491	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1498	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1499	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1500	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1501	aio_unlink +(playerdir $login) . "/$login.pl";
999		1502
1000	my $pl = load_pl path $login	1503	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1504	or return;
		1505
		1506	my $pl = cf::player::load_pl $f
		1507	or return;
		1508
		1509	local $cf::PLAYER_LOADING{$login} = $pl;
		1510	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1511	$cf::PLAYER{$login} = $pl
1003	}	1512	}
1004	}	1513	}
1005	}	1514	}
1006		1515
…		…
1015	return if $pl->{deny_save};	1524	return if $pl->{deny_save};
1016		1525
1017	aio_mkdir playerdir $pl, 0770;	1526	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1527	$pl->{last_save} = $cf::RUNTIME;
1019		1528
		1529	cf::get_slot 0.01;
		1530
1020	$pl->save_pl ($path);	1531	$pl->save_pl ($path);
1021	Coro::cede;	1532	cf::cede_to_tick;
1022	}	1533	}
1023		1534
1024	sub new($) {	1535	sub new($) {
1025	my ($login) = @_;	1536	my ($login) = @_;
1026		1537
…		…
1032	$cf::PLAYER{$login} = $self;	1543	$cf::PLAYER{$login} = $self;
1033		1544
1034	$self	1545	$self
1035	}	1546	}
1036		1547
		1548	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1549
		1550	=cut
		1551
		1552	sub send_msg {
		1553	my $ns = shift->ns
		1554	or return;
		1555	$ns->send_msg (@_);
		1556	}
		1557
1037	=item $pl->quit_character	1558	=item $pl->quit_character
1038		1559
1039	Nukes the player without looking back. If logged in, the connection will	1560	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1561	be destroyed. May block for a long time.
1041		1562
…		…
1045	my ($pl) = @_;	1566	my ($pl) = @_;
1046		1567
1047	my $name = $pl->ob->name;	1568	my $name = $pl->ob->name;
1048		1569
1049	$pl->{deny_save} = 1;	1570	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1571	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1572
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1573	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1574	$pl->deactivate;
		1575	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1576	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1577	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1578	$pl->ns->destroy if $pl->ns;
1056		1579
1057	my $path = playerdir $pl;	1580	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1581	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1611	while and may block, so not sync_job-capable, ever.
1089		1612
1090	=cut	1613	=cut
1091		1614
1092	sub list_logins {	1615	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1616	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1617	or return [];
1095		1618
1096	my @logins;	1619	my @logins;
1097		1620
1098	for my $login (@$dirs) {	1621	for my $login (@$dirs) {
		1622	my $path = path $login;
		1623
		1624	# a .pst is a dead give-away for a valid player
		1625	# if no pst file found, open and chekc for blocked users
		1626	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1627	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1628	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1629	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1630	}
1102		1631
1103	utf8::decode $login;	1632	utf8::decode $login;
1104	push @logins, $login;	1633	push @logins, $login;
1105	}	1634	}
1106		1635
…		…
1133	}	1662	}
1134		1663
1135	\@paths	1664	\@paths
1136	}	1665	}
1137		1666
		1667	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1668
		1669	Expand deliantra pod fragments into protocol xml.
		1670
1138	=item $player->ext_reply ($msgid, %msg)	1671	=item $player->ext_reply ($msgid, @msg)
1139		1672
1140	Sends an ext reply to the player.	1673	Sends an ext reply to the player.
1141		1674
1142	=cut	1675	=cut
1143		1676
1144	sub ext_reply($$%) {	1677	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1678	my ($self, $id, @msg) = @_;
1146		1679
1147	$msg{msgid} = $id;	1680	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1681	}
1151		1682
1152	=item $player->ext_event ($type, %msg)	1683	=item $player->ext_msg ($type, @msg)
1153		1684
1154	Sends an ext event to the client.	1685	Sends an ext event to the client.
1155		1686
1156	=cut	1687	=cut
1157		1688
1158	sub ext_event($$%) {	1689	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1690	my ($self, $type, @msg) = @_;
1160		1691
1161	$self->ns->ext_event ($type, %msg);	1692	$self->ns->ext_msg ($type, @msg);
1162	}	1693	}
1163		1694
1164	=head3 cf::region	1695	=head3 cf::region
1165		1696
1166	=over 4	1697	=over 4
…		…
1169		1700
1170	package cf::region;	1701	package cf::region;
1171		1702
1172	=item cf::region::find_by_path $path	1703	=item cf::region::find_by_path $path
1173		1704
1174	Tries to decuce the probable region for a map knowing only its path.	1705	Tries to decuce the likely region for a map knowing only its path.
1175		1706
1176	=cut	1707	=cut
1177		1708
1178	sub find_by_path($) {	1709	sub find_by_path($) {
1179	my ($path) = @_;	1710	my ($path) = @_;
1180		1711
1181	my ($match, $specificity);	1712	my ($match, $specificity);
1182		1713
1183	for my $region (list) {	1714	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1715	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1716	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1717	if $region->specificity > $specificity;
1187	}	1718	}
1188	}	1719	}
1189		1720
…		…
1210	our $MAX_RESET = 3600;	1741	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1742	our $DEFAULT_RESET = 3000;
1212		1743
1213	sub generate_random_map {	1744	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1745	my ($self, $rmp) = @_;
		1746
		1747	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1748
1215	# mit "rum" bekleckern, nicht	1749	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1750	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1751	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1752	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1753	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1787	my ($self, $merge) = @_;
1254		1788
1255	# we have to keep some variables in memory intact	1789	# we have to keep some variables in memory intact
1256	local $self->{path};	1790	local $self->{path};
1257	local $self->{load_path};	1791	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1792
1261	$self->SUPER::thawer_merge ($merge);	1793	$self->SUPER::thawer_merge ($merge);
1262	}	1794	}
1263		1795
1264	sub normalise {	1796	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1843	$self->init; # pass $1 etc.
1312	return $self;	1844	return $self;
1313	}	1845	}
1314	}	1846	}
1315		1847
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1848	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1849	()
1318	}	1850	}
1319		1851
1320	sub init {	1852	sub init {
1321	my ($self) = @_;	1853	my ($self) = @_;
…		…
1336		1868
1337	# the original (read-only) location	1869	# the original (read-only) location
1338	sub load_path {	1870	sub load_path {
1339	my ($self) = @_;	1871	my ($self) = @_;
1340		1872
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1873	"$MAPDIR/$self->{path}.map"
1342	}	1874	}
1343		1875
1344	# the temporary/swap location	1876	# the temporary/swap location
1345	sub save_path {	1877	sub save_path {
1346	my ($self) = @_;	1878	my ($self) = @_;
1347		1879
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1880	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1881	"$TMPDIR/$path.map"
1350	}	1882	}
1351		1883
1352	# the unique path, undef == no special unique path	1884	# the unique path, undef == no special unique path
1353	sub uniq_path {	1885	sub uniq_path {
1354	my ($self) = @_;	1886	my ($self) = @_;
1355		1887
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1888	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1889	"$UNIQUEDIR/$path"
1358	}	1890	}
1359		1891
1360	# and all this just because we cannot iterate over	1892	# and all this just because we cannot iterate over
1361	# all maps in C++...	1893	# all maps in C++...
1362	sub change_all_map_light {	1894	sub change_all_map_light {
…		…
1364		1896
1365	$_->change_map_light ($change)	1897	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1898	for grep $_->outdoor, values %cf::MAP;
1367	}	1899	}
1368		1900
		1901	sub decay_objects {
		1902	my ($self) = @_;
		1903
		1904	return if $self->{deny_reset};
		1905
		1906	$self->do_decay_objects;
		1907	}
		1908
1369	sub unlink_save {	1909	sub unlink_save {
1370	my ($self) = @_;	1910	my ($self) = @_;
1371		1911
1372	utf8::encode (my $save = $self->save_path);	1912	utf8::encode (my $save = $self->save_path);
1373	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1913	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1376		1916
1377	sub load_header_from($) {	1917	sub load_header_from($) {
1378	my ($self, $path) = @_;	1918	my ($self, $path) = @_;
1379		1919
1380	utf8::encode $path;	1920	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1921	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1922	or return;
		1923
		1924	$self->_load_header ($f)
		1925	or return;
		1926
		1927	local $MAP_LOADING{$self->{path}} = $self;
		1928	$f->resolve_delayed_derefs;
1386		1929
1387	$self->{load_path} = $path;	1930	$self->{load_path} = $path;
1388		1931
1389	1	1932	1
1390	}	1933	}
…		…
1429	$self->load_header_orig	1972	$self->load_header_orig
1430	or return;	1973	or return;
1431	$self->prepare_orig;	1974	$self->prepare_orig;
1432	}	1975	}
1433		1976
		1977	$self->{deny_reset} = 1
		1978	if $self->no_reset;
		1979
1434	$self->default_region (cf::region::find_by_path $self->{path})	1980	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1981	unless $self->default_region;
1436		1982
1437	1	1983	1
1438	}	1984	}
…		…
1441	sub find {	1987	sub find {
1442	my ($path, $origin) = @_;	1988	my ($path, $origin) = @_;
1443		1989
1444	$path = normalise $path, $origin && $origin->path;	1990	$path = normalise $path, $origin && $origin->path;
1445		1991
		1992	cf::lock_wait "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1993	cf::lock_wait "map_find:$path";
1447		1994
1448	$cf::MAP{$path} || do {	1995	$cf::MAP{$path} || do {
		1996	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1449	my $guard = cf::lock_acquire "map_find:$path";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
		1998
1450	my $map = new_from_path cf::map $path	1999	my $map = new_from_path cf::map $path
1451	or return;	2000	or return;
1452		2001
1453	$map->{last_save} = $cf::RUNTIME;	2002	$map->{last_save} = $cf::RUNTIME;
1454		2003
1455	$map->load_header	2004	$map->load_header
1456	or return;	2005	or return;
1457		2006
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2007	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2008	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2009	#$cf::WAIT_FOR_TICK->wait;
		2010	undef $guard2;
		2011	undef $guard1;
1461	$map->reset;	2012	$map->reset;
1462	undef $guard;
1463	return find $path;	2013	return find $path;
1464	}	2014	}
1465		2015
1466	$cf::MAP{$path} = $map	2016	$cf::MAP{$path} = $map
1467	}	2017	}
…		…
1474	my ($self) = @_;	2024	my ($self) = @_;
1475		2025
1476	local $self->{deny_reset} = 1; # loading can take a long time	2026	local $self->{deny_reset} = 1; # loading can take a long time
1477		2027
1478	my $path = $self->{path};	2028	my $path = $self->{path};
		2029
		2030	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2031	my $guard = cf::lock_acquire "map_data:$path";
1480		2032
		2033	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2034	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2035
1483	$self->in_memory (cf::MAP_LOADING);	2036	$self->in_memory (cf::MAP_LOADING);
1484		2037
1485	$self->alloc;	2038	$self->alloc;
1486		2039
1487	$self->pre_load;	2040	$self->pre_load;
1488	Coro::cede;	2041	cf::cede_to_tick;
1489		2042
1490	$self->_load_objects ($self->{load_path}, 1)	2043	my $f = new_from_file cf::object::thawer $self->{load_path};
		2044	$f->skip_block;
		2045	$self->_load_objects ($f)
1491	or return;	2046	or return;
1492		2047
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2048	$self->post_load_original
1494	if delete $self->{load_original};	2049	if delete $self->{load_original};
1495		2050
1496	if (my $uniq = $self->uniq_path) {	2051	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2052	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2053	unless (aio_stat $uniq) {
		2054	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2055	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2056	$self->_load_objects ($f);
		2057	$f->resolve_delayed_derefs;
		2058	}
1501	}	2059	}
1502	}	2060	}
1503		2061
1504	Coro::cede;	2062	$f->resolve_delayed_derefs;
		2063
		2064	cf::cede_to_tick;
1505	# now do the right thing for maps	2065	# now do the right thing for maps
1506	$self->link_multipart_objects;	2066	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($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)	2067	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2068	unless $self->difficulty;
1517	Coro::cede;	2069	cf::cede_to_tick;
		2070
		2071	unless ($self->{deny_activate}) {
		2072	$self->decay_objects;
		2073	$self->fix_auto_apply;
		2074	$self->update_buttons;
		2075	cf::cede_to_tick;
		2076	$self->set_darkness_map;
		2077	cf::cede_to_tick;
1518	$self->activate;	2078	$self->activate;
1519	Coro::cede;	2079	}
		2080
		2081	$self->{last_save} = $cf::RUNTIME;
		2082	$self->last_access ($cf::RUNTIME);
		2083
		2084	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2085	}
1521		2086
1522	$self->post_load;	2087	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2088	}
1527		2089
1528	sub customise_for {	2090	sub customise_for {
1529	my ($self, $ob) = @_;	2091	my ($self, $ob) = @_;
1530		2092
1531	return find "~" . $ob->name . "/" . $self->{path}	2093	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2094	if $self->per_player;
1533		2095
		2096	# return find "?party/" . $ob->name . "/" . $self->{path}
		2097	# if $self->per_party;
		2098
1534	$self	2099	$self
1535	}	2100	}
1536		2101
1537	# find and load all maps in the 3x3 area around a map	2102	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2103	sub load_neighbours {
1539	my ($map) = @_;	2104	my ($map) = @_;
1540		2105
1541	my @diag; # diagonal neighbours	2106	my @neigh; # diagonal neighbours
1542		2107
1543	for (0 .. 3) {	2108	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2109	my $neigh = $map->tile_path ($_)
1545	or next;	2110	or next;
1546	$neigh = find $neigh, $map	2111	$neigh = find $neigh, $map
1547	or next;	2112	or next;
1548	$neigh->load;	2113	$neigh->load;
1549		2114
		2115	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2116	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2117	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2118	}
1553		2119
1554	for (@diag) {	2120	for (grep defined $_->[0], @neigh) {
		2121	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2122	my $neigh = find $path, $origin
1556	or next;	2123	or next;
1557	$neigh->load;	2124	$neigh->load;
1558	}	2125	}
1559	}	2126	}
1560		2127
…		…
1565	}	2132	}
1566		2133
1567	sub do_load_sync {	2134	sub do_load_sync {
1568	my ($map) = @_;	2135	my ($map) = @_;
1569		2136
		2137	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2138	if $Coro::current == $Coro::main;
		2139
1570	cf::sync_job { $map->load };	2140	cf::sync_job { $map->load };
1571	}	2141	}
1572		2142
1573	our %MAP_PREFETCH;	2143	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2144	our $MAP_PREFETCHER = undef;
1575		2145
1576	sub find_async {	2146	sub find_async {
1577	my ($path, $origin) = @_;	2147	my ($path, $origin, $load) = @_;
1578		2148
1579	$path = normalise $path, $origin && $origin->{path};	2149	$path = normalise $path, $origin && $origin->{path};
1580		2150
1581	if (my $map = $cf::MAP{$path}) {	2151	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2152	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2153	}
1584		2154
1585	undef $MAP_PREFETCH{$path};	2155	$MAP_PREFETCH{$path} |= $load;
		2156
1586	$MAP_PREFETCHER ||= cf::async {	2157	$MAP_PREFETCHER ||= cf::async {
		2158	$Coro::current->{desc} = "map prefetcher";
		2159
1587	while (%MAP_PREFETCH) {	2160	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2161	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2162	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2163	$map->load if $v;
		2164	}
1592		2165
1593	delete $MAP_PREFETCH{$path};	2166	delete $MAP_PREFETCH{$k};
1594	}	2167	}
1595	}	2168	}
1596	undef $MAP_PREFETCHER;	2169	undef $MAP_PREFETCHER;
1597	};	2170	};
1598	$MAP_PREFETCHER->prio (6);	2171	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2174	}
1602		2175
1603	sub save {	2176	sub save {
1604	my ($self) = @_;	2177	my ($self) = @_;
1605		2178
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2180
1608	$self->{last_save} = $cf::RUNTIME;	2181	$self->{last_save} = $cf::RUNTIME;
1609		2182
1610	return unless $self->dirty;	2183	return unless $self->dirty;
1611		2184
…		…
1617	return if $self->{deny_save};	2190	return if $self->{deny_save};
1618		2191
1619	local $self->{last_access} = $self->last_access;#d#	2192	local $self->{last_access} = $self->last_access;#d#
1620		2193
1621	cf::async {	2194	cf::async {
		2195	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2196	$_->contr->save for $self->players;
1623	};	2197	};
		2198
		2199	cf::get_slot 0.02;
1624		2200
1625	if ($uniq) {	2201	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2202	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2203	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2204	} else {
…		…
1634	my ($self) = @_;	2210	my ($self) = @_;
1635		2211
1636	# save first because save cedes	2212	# save first because save cedes
1637	$self->save;	2213	$self->save;
1638		2214
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2215	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2216
1641	return if $self->players;	2217	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2218	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2219	return if $self->{deny_save};
1644		2220
		2221	$self->in_memory (cf::MAP_SWAPPED);
		2222
		2223	$self->deactivate;
		2224	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2225	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2226	}
1648		2227
1649	sub reset_at {	2228	sub reset_at {
1650	my ($self) = @_;	2229	my ($self) = @_;
1651		2230
1652	# TODO: safety, remove and allow resettable per-player maps	2231	# 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};	2232	return 1e99 if $self->{deny_reset};
1655		2233
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2234	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2235	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2236
…		…
1669	my ($self) = @_;	2247	my ($self) = @_;
1670		2248
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2249	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2250
1673	return if $self->players;	2251	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2252
1676	warn "resetting map ", $self->path;#d#	2253	warn "resetting map ", $self->path;
1677		2254
1678	$self->in_memory (cf::MAP_SWAPPED);	2255	$self->in_memory (cf::MAP_SWAPPED);
1679		2256
1680	# need to save uniques path	2257	# need to save uniques path
1681	unless ($self->{deny_save}) {	2258	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2262	if $uniq;
1686	}	2263	}
1687		2264
1688	delete $cf::MAP{$self->path};	2265	delete $cf::MAP{$self->path};
1689		2266
		2267	$self->deactivate;
		2268	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2269	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2270
1694	$self->unlink_save;	2271	$self->unlink_save;
1695	$self->destroy;	2272	$self->destroy;
1696	}	2273	}
1697		2274
1698	my $nuke_counter = "aaaa";	2275	my $nuke_counter = "aaaa";
1699		2276
1700	sub nuke {	2277	sub nuke {
1701	my ($self) = @_;	2278	my ($self) = @_;
1702		2279
		2280	{
		2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2282
1703	delete $cf::MAP{$self->path};	2283	delete $cf::MAP{$self->path};
1704		2284
1705	$self->unlink_save;	2285	$self->unlink_save;
1706		2286
1707	bless $self, "cf::map";	2287	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2288	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2289	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2290	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2291	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2292
1713	$cf::MAP{$self->path} = $self;	2293	$cf::MAP{$self->path} = $self;
		2294	}
1714		2295
1715	$self->reset; # polite request, might not happen	2296	$self->reset; # polite request, might not happen
		2297	}
		2298
		2299	=item $maps = cf::map::tmp_maps
		2300
		2301	Returns an arrayref with all map paths of currently instantiated and saved
		2302	maps. May block.
		2303
		2304	=cut
		2305
		2306	sub tmp_maps() {
		2307	[
		2308	map {
		2309	utf8::decode $_;
		2310	/\.map$/
		2311	? normalise $_
		2312	: ()
		2313	} @{ aio_readdir $TMPDIR or [] }
		2314	]
		2315	}
		2316
		2317	=item $maps = cf::map::random_maps
		2318
		2319	Returns an arrayref with all map paths of currently instantiated and saved
		2320	random maps. May block.
		2321
		2322	=cut
		2323
		2324	sub random_maps() {
		2325	[
		2326	map {
		2327	utf8::decode $_;
		2328	/\.map$/
		2329	? normalise "?random/$_"
		2330	: ()
		2331	} @{ aio_readdir $RANDOMDIR or [] }
		2332	]
1716	}	2333	}
1717		2334
1718	=item cf::map::unique_maps	2335	=item cf::map::unique_maps
1719		2336
1720	Returns an arrayref of paths of all shared maps that have	2337	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2338	instantiated unique items. May block.
1722		2339
1723	=cut	2340	=cut
1724		2341
1725	sub unique_maps() {	2342	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2343	[
1727	or return;	2344	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2345	utf8::decode $_;
1733	next if /\.pst$/;	2346	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2347	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2348	? ()
1736	push @paths, cf::map::normalise $_;	2349	: normalise $_
		2350	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2351	]
1738
1739	\@paths
1740	}	2352	}
1741
1742	package cf;
1743		2353
1744	=back	2354	=back
1745		2355
1746	=head3 cf::object	2356	=head3 cf::object
1747		2357
…		…
1751		2361
1752	=over 4	2362	=over 4
1753		2363
1754	=item $ob->inv_recursive	2364	=item $ob->inv_recursive
1755		2365
1756	Returns the inventory of the object _and_ their inventories, recursively.	2366	Returns the inventory of the object I<and> their inventories, recursively,
		2367	but I<not> the object itself.
1757		2368
1758	=cut	2369	=cut
1759		2370
1760	sub inv_recursive_;	2371	sub inv_recursive_;
1761	sub inv_recursive_ {	2372	sub inv_recursive_ {
…		…
1764		2375
1765	sub inv_recursive {	2376	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2377	inv_recursive_ inv $_[0]
1767	}	2378	}
1768		2379
		2380	=item $ref = $ob->ref
		2381
		2382	Creates and returns a persistent reference to an object that can be stored as a string.
		2383
		2384	=item $ob = cf::object::deref ($refstring)
		2385
		2386	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2387	even if the object actually exists. May block.
		2388
		2389	=cut
		2390
		2391	sub deref {
		2392	my ($ref) = @_;
		2393
		2394	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2395	my ($uuid, $name) = ($1, $2);
		2396	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2397	or return;
		2398	$pl->ob->uuid eq $uuid
		2399	or return;
		2400
		2401	$pl->ob
		2402	} else {
		2403	warn "$ref: cannot resolve object reference\n";
		2404	undef
		2405	}
		2406	}
		2407
1769	package cf;	2408	package cf;
1770		2409
1771	=back	2410	=back
1772		2411
1773	=head3 cf::object::player	2412	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2418	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	2419	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2420	dialogue with the given NPC character.
1782		2421
1783	=cut	2422	=cut
		2423
		2424	our $SAY_CHANNEL = {
		2425	id => "say",
		2426	title => "Map",
		2427	reply => "say ",
		2428	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2429	};
		2430
		2431	our $CHAT_CHANNEL = {
		2432	id => "chat",
		2433	title => "Chat",
		2434	reply => "chat ",
		2435	tooltip => "Player chat and shouts, global to the server.",
		2436	};
1784		2437
1785	# rough implementation of a future "reply" method that works	2438	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2439	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2440	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2441	sub cf::object::player::reply($$$;$) {
…		…
1790		2443
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2445
1793	if ($self->{record_replies}) {	2446	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2448
1795	} else {	2449	} else {
		2450	my $pl = $self->contr;
		2451
		2452	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2453	my $dialog = $pl->{npc_dialog};
		2454	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2455
		2456	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2457	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2458	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2459	}
1798	}	2460	}
		2461	}
		2462
		2463	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2464
		2465	=cut
		2466
		2467	sub cf::object::send_msg {
		2468	my $pl = shift->contr
		2469	or return;
		2470	$pl->send_msg (@_);
1799	}	2471	}
1800		2472
1801	=item $player_object->may ("access")	2473	=item $player_object->may ("access")
1802		2474
1803	Returns wether the given player is authorized to access resource "access"	2475	Returns wether the given player is authorized to access resource "access"
…		…
1816		2488
1817	=item $player_object->enter_link	2489	=item $player_object->enter_link
1818		2490
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2491	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2492
1821	The player should be reasonably safe there for short amounts of time. You	2493	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.	2494	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2495	though, as the palyer cannot control the character while it is on the link
		2496	map.
1823		2497
1824	Will never block.	2498	Will never block.
1825		2499
1826	=item $player_object->leave_link ($map, $x, $y)	2500	=item $player_object->leave_link ($map, $x, $y)
1827		2501
…		…
1850	$self->deactivate_recursive;	2524	$self->deactivate_recursive;
1851		2525
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2526	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2527
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2528	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2529	if $self->map && $self->map->{path} ne "{link}";
1856		2530
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2531	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2532	}
1859		2533
1860	sub cf::object::player::leave_link {	2534	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2535	my ($self, $map, $x, $y) = @_;
		2536
		2537	return unless $self->contr->active;
1862		2538
1863	my $link_pos = delete $self->{_link_pos};	2539	my $link_pos = delete $self->{_link_pos};
1864		2540
1865	unless ($map) {	2541	unless ($map) {
1866	# restore original map position	2542	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2556	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2557	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2558	if $x <=0 && $y <= 0;
1883		2559
1884	$map->load;	2560	$map->load;
1885	$map->load_diag;	2561	$map->load_neighbours;
1886		2562
1887	return unless $self->contr->active;	2563	return unless $self->contr->active;
		2564	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1888	$self->activate_recursive;	2565	$self->activate_recursive;
1889		2566
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2567	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2568	$self->enter_map ($map, $x, $y);
1892	}	2569	}
1893		2570
1894	cf::player->attach (	2571	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2572
1898	# abort map switching before logout	2573	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2574	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2575	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2576	the new (success) or old (failed) map position. In either case, $done will
1902	};	2577	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2578
1908	# try to abort aborted map switching on player login :)	2579	Note that $check will be called with a potentially non-loaded map, so if
1909	# should happen only on crashes	2580	it needs a loaded map it has to call C<< ->load >>.
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
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		2581
1926	=item $player_object->goto ($path, $x, $y)
1927
1928	=cut	2582	=cut
		2583
		2584	our $GOTOGEN;
1929		2585
1930	sub cf::object::player::goto {	2586	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2587	my ($self, $path, $x, $y, $check, $done) = @_;
		2588
		2589	# do generation counting so two concurrent goto's will be executed in-order
		2590	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2591
1933	$self->enter_link;	2592	$self->enter_link;
1934		2593
1935	(async {	2594	(async {
		2595	$Coro::current->{desc} = "player::goto $path $x $y";
		2596
		2597	# *tag paths override both path and x|y
		2598	if ($path =~ /^\*(.*)$/) {
		2599	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2600	my $ob = $obs[rand @obs];
		2601
		2602	# see if we actually can go there
		2603	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2604	$ob = $obs[rand @obs];
		2605	} else {
		2606	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	}
		2608	# else put us there anyways for now #d#
		2609
		2610	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2611	} else {
		2612	($path, $x, $y) = (undef, undef, undef);
		2613	}
		2614	}
		2615
1936	my $map = eval {	2616	my $map = eval {
1937	my $map = cf::map::find $path;	2617	my $map = defined $path ? cf::map::find $path : undef;
		2618
		2619	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2620	$map = $map->customise_for ($self);
		2621	$map = $check->($map) if $check && $map;
		2622	} else {
		2623	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	}
		2625
1939	$map	2626	$map
		2627	};
		2628
		2629	if ($@) {
		2630	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2632	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2633
		2634	if ($gen == $self->{_goto_generation}) {
		2635	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2636	$self->leave_link ($map, $x, $y);
		2637	}
		2638
		2639	$done->() if $done;
1944	})->prio (1);	2640	})->prio (1);
1945	}	2641	}
1946		2642
1947	=item $player_object->enter_exit ($exit_object)	2643	=item $player_object->enter_exit ($exit_object)
1948		2644
…		…
1968	}	2664	}
1969		2665
1970	sub prepare_random_map {	2666	sub prepare_random_map {
1971	my ($exit) = @_;	2667	my ($exit) = @_;
1972		2668
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2669	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2670	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2671	# that depends on the exit object
1978		2672
1979	my $rmp = parse_random_map_params $exit->msg;	2673	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2675	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2676	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2677	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2678	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2679	$rmp->{origin_y} = $exit->y;
		2680
		2681	$exit->map->touch;
1986	}	2682	}
1987		2683
1988	$rmp->{random_seed} ||= $exit->random_seed;	2684	$rmp->{random_seed} ||= $exit->random_seed;
1989		2685
1990	my $data = cf::to_json $rmp;	2686	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2687	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2688	my $meta = "$RANDOMDIR/$md5.meta";
1993		2689
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2690	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2691	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2692	undef $fh;
1997	aio_rename "$meta~", $meta;	2693	aio_rename "$meta~", $meta;
1998		2694
		2695	my $slaying = "?random/$md5";
		2696
		2697	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2698	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2699	$exit->msg (undef);
		2700	}
2001	}	2701	}
2002	}	2702	}
2003		2703
2004	sub cf::object::player::enter_exit {	2704	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2705	my ($self, $exit) = @_;
2006		2706
2007	return unless $self->type == cf::PLAYER;	2707	return unless $self->type == cf::PLAYER;
2008		2708
2009	if ($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;	2709	$self->enter_link;
2021		2710
2022	(async {	2711	(async {
2023	$self->deactivate_recursive; # just to be sure	2712	$Coro::current->{desc} = "enter_exit";
		2713
2024	unless (eval {	2714	unless (eval {
		2715	$self->deactivate_recursive; # just to be sure
		2716
		2717	# random map handling
		2718	{
		2719	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2720
		2721	prepare_random_map $exit
		2722	if $exit->slaying eq "/!";
		2723	}
		2724
		2725	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2726	my $x = $exit->stats->hp;
		2727	my $y = $exit->stats->sp;
		2728
2025	$self->goto ($slaying, $hp, $sp);	2729	$self->goto ($map, $x, $y);
2026		2730
		2731	# if exit is damned, update players death & WoR home-position
		2732	$self->contr->savebed ($map, $x, $y)
		2733	if $exit->flag (cf::FLAG_DAMNED);
		2734
2027	1;	2735	1
2028	}) {	2736	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2737	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2738	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2739	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2740	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2741
2034	warn "ERROR in enter_exit: $@";	2742	warn "ERROR in enter_exit: $@";
…		…
2053		2761
2054	utf8::encode $text;	2762	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2763	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2764	}
2057		2765
		2766	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2767
		2768	Send a drawinfo or msg packet to the client, formatting the msg for the
		2769	client if neccessary. C<$type> should be a string identifying the type of
		2770	the message, with C<log> being the default. If C<$color> is negative, suppress
		2771	the message unless the client supports the msg packet.
		2772
		2773	=cut
		2774
		2775	# non-persistent channels (usually the info channel)
		2776	our %CHANNEL = (
		2777	"c/identify" => {
		2778	id => "infobox",
		2779	title => "Identify",
		2780	reply => undef,
		2781	tooltip => "Items recently identified",
		2782	},
		2783	"c/examine" => {
		2784	id => "infobox",
		2785	title => "Examine",
		2786	reply => undef,
		2787	tooltip => "Signs and other items you examined",
		2788	},
		2789	"c/book" => {
		2790	id => "infobox",
		2791	title => "Book",
		2792	reply => undef,
		2793	tooltip => "The contents of a note or book",
		2794	},
		2795	"c/lookat" => {
		2796	id => "infobox",
		2797	title => "Look",
		2798	reply => undef,
		2799	tooltip => "What you saw there",
		2800	},
		2801	"c/who" => {
		2802	id => "infobox",
		2803	title => "Players",
		2804	reply => undef,
		2805	tooltip => "Shows players who are currently online",
		2806	},
		2807	"c/body" => {
		2808	id => "infobox",
		2809	title => "Body Parts",
		2810	reply => undef,
		2811	tooltip => "Shows which body parts you posess and are available",
		2812	},
		2813	"c/skills" => {
		2814	id => "infobox",
		2815	title => "Skills",
		2816	reply => undef,
		2817	tooltip => "Shows your experience per skill and item power",
		2818	},
		2819	"c/uptime" => {
		2820	id => "infobox",
		2821	title => "Uptime",
		2822	reply => undef,
		2823	tooltip => "How long the server has been running since last restart",
		2824	},
		2825	"c/mapinfo" => {
		2826	id => "infobox",
		2827	title => "Map Info",
		2828	reply => undef,
		2829	tooltip => "Information related to the maps",
		2830	},
		2831	"c/party" => {
		2832	id => "party",
		2833	title => "Party",
		2834	reply => "gsay ",
		2835	tooltip => "Messages and chat related to your party",
		2836	},
		2837	);
		2838
		2839	sub cf::client::send_msg {
		2840	my ($self, $channel, $msg, $color, @extra) = @_;
		2841
		2842	$msg = $self->pl->expand_cfpod ($msg)
		2843	unless $color & cf::NDI_VERBATIM;
		2844
		2845	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2846
		2847	# check predefined channels, for the benefit of C
		2848	if ($CHANNEL{$channel}) {
		2849	$channel = $CHANNEL{$channel};
		2850
		2851	$self->ext_msg (channel_info => $channel)
		2852	if $self->can_msg;
		2853
		2854	$channel = $channel->{id};
		2855
		2856	} elsif (ref $channel) {
		2857	# send meta info to client, if not yet sent
		2858	unless (exists $self->{channel}{$channel->{id}}) {
		2859	$self->{channel}{$channel->{id}} = $channel;
		2860	$self->ext_msg (channel_info => $channel)
		2861	if $self->can_msg;
		2862	}
		2863
		2864	$channel = $channel->{id};
		2865	}
		2866
		2867	return unless @extra || length $msg;
		2868
		2869	if ($self->can_msg) {
		2870	# default colour, mask it out
		2871	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2872	if $color & cf::NDI_DEF;
		2873
		2874	my $pkt = "msg "
		2875	. $self->{json_coder}->encode (
		2876	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2877	);
		2878
		2879	# try lzf for large packets
		2880	$pkt = "lzf " . Compress::LZF::compress $pkt
		2881	if 1024 <= length $pkt and $self->{can_lzf};
		2882
		2883	# split very large packets
		2884	if (8192 < length $pkt and $self->{can_lzf}) {
		2885	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2886	$pkt = "frag";
		2887	}
		2888
		2889	$self->send_packet ($pkt);
		2890	} else {
		2891	if ($color >= 0) {
		2892	# replace some tags by gcfclient-compatible ones
		2893	for ($msg) {
		2894	1 while
		2895	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2896	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2897	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2898	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2899	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2900	}
		2901
		2902	$color &= cf::NDI_COLOR_MASK;
		2903
		2904	utf8::encode $msg;
		2905
		2906	if (0 && $msg =~ /\[/) {
		2907	# COMMAND/INFO
		2908	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2909	} else {
		2910	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2911	$self->send_packet ("drawinfo $color $msg")
		2912	}
		2913	}
		2914	}
		2915	}
		2916
2058	=item $client->ext_event ($type, %msg)	2917	=item $client->ext_msg ($type, @msg)
2059		2918
2060	Sends an exti event to the client.	2919	Sends an ext event to the client.
2061		2920
2062	=cut	2921	=cut
2063		2922
2064	sub cf::client::ext_event($$%) {	2923	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2924	my ($self, $type, @msg) = @_;
2066		2925
		2926	if ($self->extcmd == 2) {
		2927	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2928	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2929	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
		2932	}
		2933
		2934	=item $client->ext_reply ($msgid, @msg)
		2935
		2936	Sends an ext reply to the client.
		2937
		2938	=cut
		2939
		2940	sub cf::client::ext_reply($$@) {
		2941	my ($self, $id, @msg) = @_;
		2942
		2943	if ($self->extcmd == 2) {
		2944	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2945	} elsif ($self->extcmd == 1) {
		2946	#TODO: version 1, remove
		2947	unshift @msg, msgtype => "reply", msgid => $id;
		2948	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2949	}
2069	}	2950	}
2070		2951
2071	=item $success = $client->query ($flags, "text", \&cb)	2952	=item $success = $client->query ($flags, "text", \&cb)
2072		2953
2073	Queues a query to the client, calling the given callback with	2954	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>,	2955	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>.	2956	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2957
2077	Queries can fail, so check the return code. Or don't, as queries will become	2958	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2959	become reliable at some point in the future.
2079		2960
2080	=cut	2961	=cut
2081		2962
2082	sub cf::client::query {	2963	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2964	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2972	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2973	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2974
2094	$self->send_packet ($self->{query_queue}[0][0])	2975	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2976	if @{ $self->{query_queue} } == 1;
		2977
		2978	1
2096	}	2979	}
2097		2980
2098	cf::client->attach (	2981	cf::client->attach (
		2982	on_connect => sub {
		2983	my ($ns) = @_;
		2984
		2985	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2986	},
2099	on_reply => sub {	2987	on_reply => sub {
2100	my ($ns, $msg) = @_;	2988	my ($ns, $msg) = @_;
2101		2989
2102	# this weird shuffling is so that direct followup queries	2990	# this weird shuffling is so that direct followup queries
2103	# get handled first	2991	# get handled first
…		…
2115	} else {	3003	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3004	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3005	}
2118	}	3006	}
2119	},	3007	},
		3008	on_exticmd => sub {
		3009	my ($ns, $buf) = @_;
		3010
		3011	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3012
		3013	if (ref $msg) {
		3014	my ($type, $reply, @payload) =
		3015	"ARRAY" eq ref $msg
		3016	? @$msg
		3017	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3018
		3019	my @reply;
		3020
		3021	if (my $cb = $EXTICMD{$type}) {
		3022	@reply = $cb->($ns, @payload);
		3023	}
		3024
		3025	$ns->ext_reply ($reply, @reply)
		3026	if $reply;
		3027
		3028	} else {
		3029	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3030	}
		3031
		3032	cf::override;
		3033	},
2120	);	3034	);
2121		3035
2122	=item $client->async (\&cb)	3036	=item $client->async (\&cb)
2123		3037
2124	Create a new coroutine, running the specified callback. The coroutine will	3038	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3079	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3080	our $safe_hole = new Safe::Hole;
2167		3081
2168	$SIG{FPE} = 'IGNORE';	3082	$SIG{FPE} = 'IGNORE';
2169		3083
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3084	$safe->permit_only (Opcode::opset qw(
		3085	:base_core :base_mem :base_orig :base_math
		3086	grepstart grepwhile mapstart mapwhile
		3087	sort time
		3088	));
2171		3089
2172	# here we export the classes and methods available to script code	3090	# here we export the classes and methods available to script code
2173		3091
2174	=pod	3092	=pod
2175		3093
2176	The following functions and methods are available within a safe environment:	3094	The following functions and methods are available within a safe environment:
2177		3095
2178	cf::object contr pay_amount pay_player map	3096	cf::object
		3097	contr pay_amount pay_player map x y force_find force_add destroy
		3098	insert remove name archname title slaying race decrease split
		3099
2179	cf::object::player player	3100	cf::object::player
2180	cf::player peaceful	3101	player
2181	cf::map trigger	3102
		3103	cf::player
		3104	peaceful
		3105
		3106	cf::map
		3107	trigger
2182		3108
2183	=cut	3109	=cut
2184		3110
2185	for (	3111	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3112	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3113	insert remove inv nrof name archname title slaying race
		3114	decrease split destroy change_exp)],
2187	["cf::object::player" => qw(player)],	3115	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3116	["cf::player" => qw(peaceful)],
2189	["cf::map" => qw(trigger)],	3117	["cf::map" => qw(trigger)],
2190	) {	3118	) {
2191	no strict 'refs';	3119	no strict 'refs';
…		…
2262	=back	3190	=back
2263		3191
2264	=cut	3192	=cut
2265		3193
2266	#############################################################################	3194	#############################################################################
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	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434
2435	#############################################################################
2436	# the server's init and main functions	3195	# the server's init and main functions
2437		3196
2438	sub load_facedata($) {	3197	sub load_facedata($) {
2439	my ($path) = @_;	3198	my ($path) = @_;
		3199
		3200	# HACK to clear player env face cache, we need some signal framework
		3201	# for this (global event?)
		3202	%ext::player_env::MUSIC_FACE_CACHE = ();
		3203
		3204	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2440		3205
2441	warn "loading facedata from $path\n";	3206	warn "loading facedata from $path\n";
2442		3207
2443	my $facedata;	3208	my $facedata;
2444	0 < aio_load $path, $facedata	3209	0 < aio_load $path, $facedata
…		…
2447	$facedata = Coro::Storable::thaw $facedata;	3212	$facedata = Coro::Storable::thaw $facedata;
2448		3213
2449	$facedata->{version} == 2	3214	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3215	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3216
		3217	# patch in the exptable
		3218	$facedata->{resource}{"res/exp_table"} = {
		3219	type => FT_RSRC,
		3220	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3221	};
		3222	cf::cede_to_tick;
		3223
2452	{	3224	{
2453	my $faces = $facedata->{faceinfo};	3225	my $faces = $facedata->{faceinfo};
2454		3226
2455	while (my ($face, $info) = each %$faces) {	3227	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3228	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3229
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3230	cf::face::set_visibility $idx, $info->{visibility};
		3231	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3232	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3233	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2460	Coro::cede;	3234
		3235	cf::cede_to_tick;
2461	}	3236	}
2462		3237
2463	while (my ($face, $info) = each %$faces) {	3238	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3239	next unless $info->{smooth};
		3240
2465	my $idx = cf::face::find $face	3241	my $idx = cf::face::find $face
2466	or next;	3242	or next;
		3243
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3244	if (my $smooth = cf::face::find $info->{smooth}) {
		3245	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3246	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3247	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3248	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3249	}
2472	Coro::cede;	3250
		3251	cf::cede_to_tick;
2473	}	3252	}
2474	}	3253	}
2475		3254
2476	{	3255	{
2477	my $anims = $facedata->{animinfo};	3256	my $anims = $facedata->{animinfo};
2478		3257
2479	while (my ($anim, $info) = each %$anims) {	3258	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3259	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3260	cf::cede_to_tick;
2482	}	3261	}
2483		3262
2484	cf::anim::invalidate_all; # d'oh	3263	cf::anim::invalidate_all; # d'oh
2485	}	3264	}
2486		3265
		3266	{
		3267	# TODO: for gcfclient pleasure, we should give resources
		3268	# that gcfclient doesn't grok a >10000 face index.
		3269	my $res = $facedata->{resource};
		3270
		3271	while (my ($name, $info) = each %$res) {
		3272	if (defined $info->{type}) {
		3273	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3274	my $data;
		3275
		3276	if ($info->{type} & 1) {
		3277	# prepend meta info
		3278
		3279	my $meta = $enc->encode ({
		3280	name => $name,
		3281	%{ $info->{meta} || {} },
		3282	});
		3283
		3284	$data = pack "(w/a*)*", $meta, $info->{data};
		3285	} else {
		3286	$data = $info->{data};
		3287	}
		3288
		3289	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3290	cf::face::set_type $idx, $info->{type};
		3291	} else {
		3292	$RESOURCE{$name} = $info;
		3293	}
		3294
		3295	cf::cede_to_tick;
		3296	}
		3297	}
		3298
		3299	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3300
2487	1	3301	1
2488	}	3302	}
2489		3303
		3304	cf::global->attach (on_resource_update => sub {
		3305	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3306	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3307
		3308	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3309	my $sound = $soundconf->{compat}[$_]
		3310	or next;
		3311
		3312	my $face = cf::face::find "sound/$sound->[1]";
		3313	cf::sound::set $sound->[0] => $face;
		3314	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3315	}
		3316
		3317	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3318	my $face = cf::face::find "sound/$v";
		3319	cf::sound::set $k => $face;
		3320	}
		3321	}
		3322	});
		3323
		3324	register_exticmd fx_want => sub {
		3325	my ($ns, $want) = @_;
		3326
		3327	while (my ($k, $v) = each %$want) {
		3328	$ns->fx_want ($k, $v);
		3329	}
		3330	};
		3331
		3332	sub load_resource_file($) {
		3333	my $guard = lock_acquire "load_resource_file";
		3334
		3335	my $status = load_resource_file_ $_[0];
		3336	get_slot 0.1, 100;
		3337	cf::arch::commit_load;
		3338
		3339	$status
		3340	}
		3341
		3342	sub reload_regions {
		3343	# HACK to clear player env face cache, we need some signal framework
		3344	# for this (global event?)
		3345	%ext::player_env::MUSIC_FACE_CACHE = ();
		3346
		3347	load_resource_file "$MAPDIR/regions"
		3348	or die "unable to load regions file\n";
		3349
		3350	for (cf::region::list) {
		3351	$_->{match} = qr/$_->{match}/
		3352	if exists $_->{match};
		3353	}
		3354	}
		3355
2490	sub reload_facedata {	3356	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3357	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3358	or die "unable to load facedata\n";
2493	}	3359	}
2494		3360
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3361	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3362	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3363	or die "unable to load archetypes\n";
2503	}	3364	}
2504		3365
2505	sub reload_treasures {	3366	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3367	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3368	or die "unable to load treasurelists\n";
2508	}	3369	}
2509		3370
2510	sub reload_resources {	3371	sub reload_resources {
2511	warn "reloading resource files...\n";	3372	warn "reloading resource files...\n";
2512		3373
2513	reload_regions;
2514	reload_facedata;	3374	reload_facedata;
2515	reload_archetypes;	3375	reload_archetypes;
		3376	reload_regions;
2516	reload_treasures;	3377	reload_treasures;
2517		3378
2518	warn "finished reloading resource files\n";	3379	warn "finished reloading resource files\n";
2519	}	3380	}
2520		3381
2521	sub init {	3382	sub reload_config {
2522	reload_resources;
2523	}
2524
2525	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3383	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	3384	or return;
2528		3385
2529	local $/;	3386	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	3387	*CFG = YAML::Load <$fh>;
2531		3388
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3389	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2533		3390
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3391	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3392	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2541	};	3398	};
2542	warn $@ if $@;	3399	warn $@ if $@;
2543	}	3400	}
2544	}	3401	}
2545		3402
		3403	sub pidfile() {
		3404	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3405	or die "$PIDFILE: $!";
		3406	flock $fh, &Fcntl::LOCK_EX
		3407	or die "$PIDFILE: flock: $!";
		3408	$fh
		3409	}
		3410
		3411	# make sure only one server instance is running at any one time
		3412	sub atomic {
		3413	my $fh = pidfile;
		3414
		3415	my $pid = <$fh>;
		3416	kill 9, $pid if $pid > 0;
		3417
		3418	seek $fh, 0, 0;
		3419	print $fh $$;
		3420	}
		3421
2546	sub main {	3422	sub main {
		3423	cf::init_globals; # initialise logging
		3424
		3425	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3426	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3427	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3428	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3429
		3430	cf::init_experience;
		3431	cf::init_anim;
		3432	cf::init_attackmess;
		3433	cf::init_dynamic;
		3434	cf::init_block;
		3435
		3436	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3437
2547	# we must not ever block the main coroutine	3438	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3439	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3440	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3441	(async {
2551	Event::one_event;	3442	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3443	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3444	})->prio (Coro::PRIO_MAX);
2553	};	3445	};
2554		3446
2555	cfg_load;	3447	evthread_start IO::AIO::poll_fileno;
		3448
		3449	cf::sync_job {
		3450	reload_resources;
		3451	reload_config;
2556	db_init;	3452	db_init;
		3453
		3454	cf::load_settings;
		3455	cf::load_materials;
		3456	cf::init_uuid;
		3457	cf::init_signals;
		3458	cf::init_commands;
		3459	cf::init_skills;
		3460
		3461	cf::init_beforeplay;
		3462
		3463	atomic;
		3464
2557	load_extensions;	3465	load_extensions;
2558		3466
2559	$TICK_WATCHER->start;	3467	utime time, time, $RUNTIMEFILE;
		3468
		3469	# no (long-running) fork's whatsoever before this point(!)
		3470	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3471
		3472	(pop @POST_INIT)->(0) while @POST_INIT;
		3473	};
		3474
2560	Event::loop;	3475	EV::loop;
2561	}	3476	}
2562		3477
2563	#############################################################################	3478	#############################################################################
2564	# initialisation and cleanup	3479	# initialisation and cleanup
2565		3480
2566	# install some emergency cleanup handlers	3481	# install some emergency cleanup handlers
2567	BEGIN {	3482	BEGIN {
		3483	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3484	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3485	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	signal => $signal,
2573	prio => 0,
2574	cb => sub {
2575	cf::cleanup "SIG$signal";	3486	cf::cleanup "SIG$signal";
2576	},
2577	);	3487	};
		3488	}
		3489	}
		3490
		3491	sub write_runtime_sync {
		3492	# first touch the runtime file to show we are still running:
		3493	# the fsync below can take a very very long time.
		3494
		3495	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3496
		3497	my $guard = cf::lock_acquire "write_runtime";
		3498
		3499	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3500	or return;
		3501
		3502	my $value = $cf::RUNTIME + 90 + 10;
		3503	# 10 is the runtime save interval, for a monotonic clock
		3504	# 60 allows for the watchdog to kill the server.
		3505
		3506	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3507	and return;
		3508
		3509	# always fsync - this file is important
		3510	aio_fsync $fh
		3511	and return;
		3512
		3513	# touch it again to show we are up-to-date
		3514	aio_utime $fh, undef, undef;
		3515
		3516	close $fh
		3517	or return;
		3518
		3519	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3520	and return;
		3521
		3522	warn "runtime file written.\n";
		3523
2578	}	3524	1
		3525	}
		3526
		3527	our $uuid_lock;
		3528	our $uuid_skip;
		3529
		3530	sub write_uuid_sync($) {
		3531	$uuid_skip ||= $_[0];
		3532
		3533	return if $uuid_lock;
		3534	local $uuid_lock = 1;
		3535
		3536	my $uuid = "$LOCALDIR/uuid";
		3537
		3538	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3539	or return;
		3540
		3541	my $value = uuid_seq uuid_cur;
		3542
		3543	unless ($value) {
		3544	warn "cowardly refusing to write zero uuid value!\n";
		3545	return;
		3546	}
		3547
		3548	my $value = uuid_str $value + $uuid_skip;
		3549	$uuid_skip = 0;
		3550
		3551	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3552	and return;
		3553
		3554	# always fsync - this file is important
		3555	aio_fsync $fh
		3556	and return;
		3557
		3558	close $fh
		3559	or return;
		3560
		3561	aio_rename "$uuid~", $uuid
		3562	and return;
		3563
		3564	warn "uuid file written ($value).\n";
		3565
		3566	1
		3567
		3568	}
		3569
		3570	sub write_uuid($$) {
		3571	my ($skip, $sync) = @_;
		3572
		3573	$sync ? write_uuid_sync $skip
		3574	: async { write_uuid_sync $skip };
2579	}	3575	}
2580		3576
2581	sub emergency_save() {	3577	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3578	my $freeze_guard = cf::freeze_mainloop;
2583		3579
2584	warn "enter emergency perl save\n";	3580	warn "emergency_perl_save: enter\n";
2585		3581
2586	cf::sync_job {	3582	cf::sync_job {
		3583	# this is a trade-off: we want to be very quick here, so
		3584	# save all maps without fsync, and later call a global sync
		3585	# (which in turn might be very very slow)
		3586	local $USE_FSYNC = 0;
		3587
2587	# use a peculiar iteration method to avoid tripping on perl	3588	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	3589	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	3590	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	3591	warn "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	3592	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	3593	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	3594	$pl->valid or next;
		3595	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	3596	$pl->save;
2595	}	3597	}
2596	warn "end emergency player save\n";	3598	warn "emergency_perl_save: end player save\n";
2597		3599
2598	warn "begin emergency map save\n";	3600	warn "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	3601	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	3602	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	3603	$map->valid or next;
2602	$map->save;	3604	$map->save;
2603	}	3605	}
2604	warn "end emergency map save\n";	3606	warn "emergency_perl_save: end map save\n";
2605		3607
2606	warn "begin emergency database checkpoint\n";	3608	warn "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	3609	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	3610	warn "emergency_perl_save: end database checkpoint\n";
		3611
		3612	warn "emergency_perl_save: begin write uuid\n";
		3613	write_uuid_sync 1;
		3614	warn "emergency_perl_save: end write uuid\n";
2609	};	3615	};
2610		3616
		3617	warn "emergency_perl_save: starting sync()\n";
		3618	IO::AIO::aio_sync sub {
		3619	warn "emergency_perl_save: finished sync()\n";
		3620	};
		3621
2611	warn "leave emergency perl save\n";	3622	warn "emergency_perl_save: leave\n";
2612	}	3623	}
2613		3624
2614	sub post_cleanup {	3625	sub post_cleanup {
2615	my ($make_core) = @_;	3626	my ($make_core) = @_;
2616		3627
2617	warn Carp::longmess "post_cleanup backtrace"	3628	warn Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	3629	if $make_core;
		3630
		3631	my $fh = pidfile;
		3632	unlink $PIDFILE if <$fh> == $$;
		3633	}
		3634
		3635	# a safer delete_package, copied from Symbol
		3636	sub clear_package($) {
		3637	my $pkg = shift;
		3638
		3639	# expand to full symbol table name if needed
		3640	unless ($pkg =~ /^main::.*::$/) {
		3641	$pkg = "main$pkg" if $pkg =~ /^::/;
		3642	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3643	$pkg .= '::' unless $pkg =~ /::$/;
		3644	}
		3645
		3646	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3647	my $stem_symtab = *{$stem}{HASH};
		3648
		3649	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3650	or return;
		3651
		3652	# clear all symbols
		3653	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3654	for my $name (keys %$leaf_symtab) {
		3655	_gv_clear *{"$pkg$name"};
		3656	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3657	}
		3658	warn "cleared package $pkg\n";#d#
2619	}	3659	}
2620		3660
2621	sub do_reload_perl() {	3661	sub do_reload_perl() {
2622	# can/must only be called in main	3662	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	3663	if ($Coro::current != $Coro::main) {
2624	warn "can only reload from main coroutine";	3664	warn "can only reload from main coroutine";
2625	return;	3665	return;
2626	}	3666	}
2627		3667
		3668	return if $RELOAD++;
		3669
		3670	my $t1 = EV::time;
		3671
		3672	while ($RELOAD) {
2628	warn "reloading...";	3673	warn "reloading...";
2629		3674
2630	warn "entering sync_job";	3675	warn "entering sync_job";
2631		3676
2632	cf::sync_job {	3677	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark	3678	cf::write_runtime_sync; # external watchdog should not bark
2634	cf::emergency_save;	3679	cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark	3680	cf::write_runtime_sync; # external watchdog should not bark
2636		3681
2637	warn "syncing database to disk";	3682	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;	3683	BDB::db_env_txn_checkpoint $DB_ENV;
2639		3684
2640	# if anything goes wrong in here, we should simply crash as we already saved	3685	# if anything goes wrong in here, we should simply crash as we already saved
2641		3686
2642	warn "cancelling all WF_AUTOCANCEL watchers";
2643	for (Event::all_watchers) {
2644	$_->cancel if $_->data & WF_AUTOCANCEL;
2645	}
2646
2647	warn "flushing outstanding aio requests";	3687	warn "flushing outstanding aio requests";
2648	for (;;) {
2649	BDB::flush;
2650	IO::AIO::flush;
2651	Coro::cede;
2652	last unless IO::AIO::nreqs || BDB::nreqs;	3688	while (IO::AIO::nreqs || BDB::nreqs) {
2653	warn "iterate...";	3689	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2654	}
2655
2656	++$RELOAD;
2657
2658	warn "cancelling all extension coros";
2659	$_->cancel for values %EXT_CORO;
2660	%EXT_CORO = ();
2661
2662	warn "removing commands";
2663	%COMMAND = ();
2664
2665	warn "removing ext commands";
2666	%EXTCMD = ();
2667
2668	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";
2671
2672	if (my $cb = $pkg->can ("unload")) {
2673	eval {
2674	$cb->($pkg);
2675	1
2676	} or warn "$pkg unloaded, but with errors: $@";
2677	}	3690	}
2678		3691
2679	warn "... nuking $pkg";	3692	warn "cancelling all extension coros";
2680	Symbol::delete_package $pkg;	3693	$_->cancel for values %EXT_CORO;
2681	}	3694	%EXT_CORO = ();
2682		3695
2683	warn "unloading all perl modules loaded from $LIBDIR";	3696	warn "removing commands";
2684	while (my ($k, $v) = each %INC) {	3697	%COMMAND = ();
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		3698
		3699	warn "removing ext/exti commands";
		3700	%EXTCMD = ();
		3701	%EXTICMD = ();
		3702
		3703	warn "unloading/nuking all extensions";
		3704	for my $pkg (@EXTS) {
2687	warn "... unloading $k";	3705	warn "... unloading $pkg";
2688	delete $INC{$k};
2689		3706
2690	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;
2692
2693	if (my $cb = $k->can ("unload_module")) {	3707	if (my $cb = $pkg->can ("unload")) {
		3708	eval {
2694	$cb->();	3709	$cb->($pkg);
		3710	1
		3711	} or warn "$pkg unloaded, but with errors: $@";
		3712	}
		3713
		3714	warn "... clearing $pkg";
		3715	clear_package $pkg;
2695	}	3716	}
2696		3717
2697	Symbol::delete_package $k;	3718	warn "unloading all perl modules loaded from $LIBDIR";
		3719	while (my ($k, $v) = each %INC) {
		3720	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3721
		3722	warn "... unloading $k";
		3723	delete $INC{$k};
		3724
		3725	$k =~ s/\.pm$//;
		3726	$k =~ s/\//::/g;
		3727
		3728	if (my $cb = $k->can ("unload_module")) {
		3729	$cb->();
		3730	}
		3731
		3732	clear_package $k;
2698	}	3733	}
2699		3734
2700	warn "getting rid of safe::, as good as possible";	3735	warn "getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	3736	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3737	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		3738
2704	warn "unloading cf.pm \"a bit\"";	3739	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	3740	delete $INC{"cf.pm"};
2706	delete $INC{"cf/pod.pm"};	3741	delete $INC{"cf/pod.pm"};
2707		3742
2708	# don't, removes xs symbols, too,	3743	# don't, removes xs symbols, too,
2709	# and global variables created in xs	3744	# and global variables created in xs
2710	#Symbol::delete_package __PACKAGE__;	3745	#clear_package __PACKAGE__;
2711		3746
2712	warn "unload completed, starting to reload now";	3747	warn "unload completed, starting to reload now";
2713		3748
2714	warn "reloading cf.pm";	3749	warn "reloading cf.pm";
2715	require cf;	3750	require cf;
2716	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3751	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2717		3752
2718	warn "loading config and database again";	3753	warn "loading config and database again";
2719	cf::cfg_load;	3754	cf::reload_config;
2720		3755
2721	warn "loading extensions";	3756	warn "loading extensions";
2722	cf::load_extensions;	3757	cf::load_extensions;
2723		3758
		3759	if ($REATTACH_ON_RELOAD) {
2724	warn "reattaching attachments to objects/players";	3760	warn "reattaching attachments to objects/players";
2725	_global_reattach; # objects, sockets	3761	_global_reattach; # objects, sockets
2726	warn "reattaching attachments to maps";	3762	warn "reattaching attachments to maps";
2727	reattach $_ for values %MAP;	3763	reattach $_ for values %MAP;
2728	warn "reattaching attachments to players";	3764	warn "reattaching attachments to players";
2729	reattach $_ for values %PLAYER;	3765	reattach $_ for values %PLAYER;
		3766	}
2730		3767
		3768	warn "running post_init jobs";
		3769	(pop @POST_INIT)->(1) while @POST_INIT;
		3770
2731	warn "leaving sync_job";	3771	warn "leaving sync_job";
2732		3772
2733	1	3773	1
2734	} or do {	3774	} or do {
2735	warn $@;	3775	warn $@;
2736	warn "error while reloading, exiting.";	3776	cf::cleanup "error while reloading, exiting.";
2737	exit 1;
2738	};	3777	};
2739		3778
2740	warn "reloaded";	3779	warn "reloaded";
		3780	--$RELOAD;
		3781	}
		3782
		3783	$t1 = EV::time - $t1;
		3784	warn "reload completed in ${t1}s\n";
2741	};	3785	};
2742		3786
2743	our $RELOAD_WATCHER; # used only during reload	3787	our $RELOAD_WATCHER; # used only during reload
2744		3788
2745	sub reload_perl() {	3789	sub reload_perl() {
2746	# doing reload synchronously and two reloads happen back-to-back,	3790	# doing reload synchronously and two reloads happen back-to-back,
2747	# coro crashes during coro_state_free->destroy here.	3791	# coro crashes during coro_state_free->destroy here.
2748		3792
2749	$RELOAD_WATCHER ||= Event->timer (	3793	$RELOAD_WATCHER ||= cf::async {
2750	reentrant => 0,	3794	Coro::AIO::aio_wait cache_extensions;
2751	after => 0,	3795
2752	data => WF_AUTOCANCEL,	3796	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2753	cb => sub {
2754	do_reload_perl;	3797	do_reload_perl;
2755	undef $RELOAD_WATCHER;	3798	undef $RELOAD_WATCHER;
2756	},	3799	};
2757	);	3800	};
2758	}	3801	}
2759		3802
2760	register_command "reload" => sub {	3803	register_command "reload" => sub {
2761	my ($who, $arg) = @_;	3804	my ($who, $arg) = @_;
2762		3805
2763	if ($who->flag (FLAG_WIZ)) {	3806	if ($who->flag (FLAG_WIZ)) {
2764	$who->message ("reloading server.");	3807	$who->message ("reloading server.");
		3808	async {
		3809	$Coro::current->{desc} = "perl_reload";
2765	async { reload_perl };	3810	reload_perl;
		3811	};
2766	}	3812	}
2767	};	3813	};
2768		3814
2769	unshift @INC, $LIBDIR;	3815	unshift @INC, $LIBDIR;
2770		3816
…		…
2772		3818
2773	our @WAIT_FOR_TICK;	3819	our @WAIT_FOR_TICK;
2774	our @WAIT_FOR_TICK_BEGIN;	3820	our @WAIT_FOR_TICK_BEGIN;
2775		3821
2776	sub wait_for_tick {	3822	sub wait_for_tick {
2777	return unless $TICK_WATCHER->is_active;
2778	return if $Coro::current == $Coro::main;	3823	return if tick_inhibit || $Coro::current == $Coro::main;
2779		3824
2780	my $signal = new Coro::Signal;	3825	my $signal = new Coro::Signal;
2781	push @WAIT_FOR_TICK, $signal;	3826	push @WAIT_FOR_TICK, $signal;
2782	$signal->wait;	3827	$signal->wait;
2783	}	3828	}
2784		3829
2785	sub wait_for_tick_begin {	3830	sub wait_for_tick_begin {
2786	return unless $TICK_WATCHER->is_active;
2787	return if $Coro::current == $Coro::main;	3831	return if tick_inhibit || $Coro::current == $Coro::main;
2788		3832
2789	my $signal = new Coro::Signal;	3833	my $signal = new Coro::Signal;
2790	push @WAIT_FOR_TICK_BEGIN, $signal;	3834	push @WAIT_FOR_TICK_BEGIN, $signal;
2791	$signal->wait;	3835	$signal->wait;
2792	}	3836	}
2793		3837
2794	$TICK_WATCHER = Event->timer (	3838	sub tick {
2795	reentrant => 0,
2796	parked => 1,
2797	prio => 0,
2798	at => $NEXT_TICK || $TICK,
2799	data => WF_AUTOCANCEL,
2800	cb => sub {
2801	if ($Coro::current != $Coro::main) {	3839	if ($Coro::current != $Coro::main) {
2802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3840	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2803	unless ++$bug_warning > 10;	3841	unless ++$bug_warning > 10;
2804	return;	3842	return;
2805	}	3843	}
2806		3844
2807	$NOW = Event::time;
2808
2809	cf::server_tick; # one server iteration	3845	cf::server_tick; # one server iteration
2810		3846
2811	$RUNTIME += $TICK;
2812	$NEXT_TICK += $TICK;
2813
2814	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3847	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2815	$NEXT_RUNTIME_WRITE = $NOW + 10;	3848	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2816	Coro::async_pool {	3849	Coro::async_pool {
		3850	$Coro::current->{desc} = "runtime saver";
2817	write_runtime	3851	write_runtime_sync
2818	or warn "ERROR: unable to write runtime file: $!";	3852	or warn "ERROR: unable to write runtime file: $!";
2819	};
2820	}	3853	};
		3854	}
2821		3855
2822	# my $AFTER = Event::time;
2823	# warn $AFTER - $NOW;#d#
2824
2825	# if we are delayed by four ticks or more, skip them all
2826	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2827
2828	$TICK_WATCHER->at ($NEXT_TICK);
2829	$TICK_WATCHER->start;
2830
2831	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2832	$sig->send;	3857	$sig->send;
2833	}	3858	}
2834	while (my $sig = shift @WAIT_FOR_TICK) {	3859	while (my $sig = shift @WAIT_FOR_TICK) {
2835	$sig->send;	3860	$sig->send;
2836	}
2837
2838	_post_tick;
2839	},	3861	}
2840	);	3862
		3863	$LOAD = ($NOW - $TICK_START) / $TICK;
		3864	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3865
		3866	if (0) {
		3867	if ($NEXT_TICK) {
		3868	my $jitter = $TICK_START - $NEXT_TICK;
		3869	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3870	warn "jitter $JITTER\n";#d#
		3871	}
		3872	}
		3873	}
2841		3874
2842	{	3875	{
2843	BDB::max_poll_time $TICK * 0.1;	3876	# configure BDB
2844	$BDB_POLL_WATCHER = Event->io (	3877
2845	reentrant => 0,
2846	fd => BDB::poll_fileno,
2847	poll => 'r',
2848	prio => 0,
2849	data => WF_AUTOCANCEL,
2850	cb => \&BDB::poll_cb,
2851	);
2852	BDB::min_parallel 8;	3878	BDB::min_parallel 8;
2853		3879	BDB::max_poll_reqs $TICK * 0.1;
2854	BDB::set_sync_prepare {	3880	$AnyEvent::BDB::WATCHER->priority (1);
2855	my $status;
2856	my $current = $Coro::current;
2857	(
2858	sub {
2859	$status = $!;
2860	$current->ready; undef $current;
2861	},
2862	sub {
2863	Coro::schedule while defined $current;
2864	$! = $status;
2865	},
2866	)
2867	};
2868		3881
2869	unless ($DB_ENV) {	3882	unless ($DB_ENV) {
2870	$DB_ENV = BDB::db_env_create;	3883	$DB_ENV = BDB::db_env_create;
		3884	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3885	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3886	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3887	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3888	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2871		3889
2872	cf::sync_job {	3890	cf::sync_job {
2873	eval {	3891	eval {
2874	BDB::db_env_open	3892	BDB::db_env_open
2875	$DB_ENV,	3893	$DB_ENV,
2876	$BDB_ENV_DIR,	3894	$BDBDIR,
2877	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3895	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3896	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879	0666;	3897	0666;
2880		3898
2881	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3899	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2882
2883	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884	$DB_ENV->set_lk_detect;
2885	};	3900	};
2886		3901
2887	cf::cleanup "db_env_open(db): $@" if $@;	3902	cf::cleanup "db_env_open(db): $@" if $@;
2888	};	3903	};
2889	}	3904	}
		3905
		3906	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3907	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3908	};
		3909	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3910	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3911	};
		3912	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3913	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3914	};
2890	}	3915	}
2891		3916
2892	{	3917	{
		3918	# configure IO::AIO
		3919
2893	IO::AIO::min_parallel 8;	3920	IO::AIO::min_parallel 8;
2894
2895	undef $Coro::AIO::WATCHER;
2896	IO::AIO::max_poll_time $TICK * 0.1;	3921	IO::AIO::max_poll_time $TICK * 0.1;
2897	$AIO_POLL_WATCHER = Event->io (	3922	undef $AnyEvent::AIO::WATCHER;
2898	reentrant => 0,	3923	}
2899	data => WF_AUTOCANCEL,	3924
2900	fd => IO::AIO::poll_fileno,	3925	my $_log_backtrace;
2901	poll => 'r',	3926
2902	prio => 6,	3927	sub _log_backtrace {
2903	cb => \&IO::AIO::poll_cb,	3928	my ($msg, @addr) = @_;
2904	);	3929
		3930	$msg =~ s/\n//;
		3931
		3932	# limit the # of concurrent backtraces
		3933	if ($_log_backtrace < 2) {
		3934	++$_log_backtrace;
		3935	my $perl_bt = Carp::longmess $msg;
		3936	async {
		3937	$Coro::current->{desc} = "abt $msg";
		3938
		3939	my @bt = fork_call {
		3940	@addr = map { sprintf "%x", $_ } @addr;
		3941	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3942	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3943	or die "addr2line: $!";
		3944
		3945	my @funcs;
		3946	my @res = <$fh>;
		3947	chomp for @res;
		3948	while (@res) {
		3949	my ($func, $line) = splice @res, 0, 2, ();
		3950	push @funcs, "[$func] $line";
		3951	}
		3952
		3953	@funcs
		3954	};
		3955
		3956	LOG llevInfo, "[ABT] $perl_bt\n";
		3957	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3958	LOG llevInfo, "[ABT] $_\n" for @bt;
		3959	--$_log_backtrace;
		3960	};
		3961	} else {
		3962	LOG llevInfo, "[ABT] $msg\n";
		3963	LOG llevInfo, "[ABT] [suppressed]\n";
		3964	}
2905	}	3965	}
2906		3966
2907	# load additional modules	3967	# load additional modules
2908	use cf::pod;	3968	use cf::pod;
2909		3969

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