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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.468 by root, Thu Jan 8 19:23:44 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		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 qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
28		76
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		78
36	our %COMMAND = ();	79	our %COMMAND = ();
37	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
38		81
39	our @EXTS = (); # list of extension package names	82	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	85	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	86	our %EXT_MAP = (); # pluggable maps
43		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	89	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		90
47	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
		106
		107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	109	our $NEXT_TICK;
50	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default off
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
51		118
52	our %CFG;	119	our %CFG;
53		120
54	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
56		124
57	our %PLAYER; # all users	125	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	126	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	127	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		128
65	# used to convert map paths into valid unix filenames by replacing / by ∕	129	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		131
		132	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		133	our $LOADAVG; # same thing, but with alpha-smoothing
		134	our $JITTER; # average jitter
		135	our $TICK_START; # for load detecting purposes
		136
		137	our @POST_INIT;
		138
		139	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
		140
68	binmode STDOUT;	141	binmode STDOUT;
69	binmode STDERR;	142	binmode STDERR;
70		143
71	# read virtual server time, if available	144	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
76	}	149	}
77		150
78	mkdir cf::localdir;	151	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	152
80	mkdir cf::localdir . "/" . cf::tmpdir;	153	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	154	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		155
84	our $EMERGENCY_POSITION;	156	our $EMERGENCY_POSITION;
		157
		158	sub cf::map::normalise;
85		159
86	#############################################################################	160	#############################################################################
87		161
88	=head2 GLOBAL VARIABLES	162	=head2 GLOBAL VARIABLES
89		163
…		…
96	=item $cf::RUNTIME	170	=item $cf::RUNTIME
97		171
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	172	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	173	every server tick.
100		174
101	=item $cf::LIBDIR	175	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		176	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		177	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		178
103	The perl library directory, where extensions and cf-specific modules can	179	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	180	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		181	unique-items directory, player file directory, random maps directory and
		182	database environment.
105		183
106	=item $cf::NOW	184	=item $cf::NOW
107		185
108	The time of the last (current) server tick.	186	The time of the last (current) server tick.
109		187
110	=item $cf::TICK	188	=item $cf::TICK
111		189
112	The interval between server ticks, in seconds.	190	The interval between server ticks, in seconds.
113		191
		192	=item $cf::LOADAVG
		193
		194	The current CPU load on the server (alpha-smoothed), as a value between 0
		195	(none) and 1 (overloaded), indicating how much time is spent on processing
		196	objects per tick. Healthy values are < 0.5.
		197
		198	=item $cf::LOAD
		199
		200	The raw value load value from the last tick.
		201
114	=item %cf::CFG	202	=item %cf::CFG
115		203
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	204	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	205	from wherever your confdir points to.
118		206
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	207	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		208
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	209	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	210	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	211	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	212
		213	=item @cf::INVOKE_RESULTS
		214
		215	This array contains the results of the last C<invoke ()> call. When
		216	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		217	that call.
125		218
126	=back	219	=back
127		220
128	=cut	221	=cut
129		222
130	BEGIN {	223	BEGIN {
131	*CORE::GLOBAL::warn = sub {	224	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	225	my $msg = join "", @_;
133	utf8::encode $msg;
134		226
135	$msg .= "\n"	227	$msg .= "\n"
136	unless $msg =~ /\n$/;	228	unless $msg =~ /\n$/;
137		229
		230	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		231
138	LOG llevError, $msg;	232	LOG llevError, $msg;
139	};	233	};
140	}	234	}
		235
		236	$Coro::State::DIEHOOK = sub {
		237	return unless $^S eq 0; # "eq", not "=="
		238
		239	if ($Coro::current == $Coro::main) {#d#
		240	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		241	return;#d#
		242	}#d#
		243
		244	# kill coroutine otherwise
		245	warn Carp::longmess $_[0];
		246	Coro::terminate
		247	};
		248
		249	$SIG{__DIE__} = sub { }; #d#?
141		250
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	251	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	252	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	253	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	254	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	255	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		256	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	257	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		258
149	# we bless all objects into (empty) derived classes to force a method lookup	259	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	260	# within the Safe compartment.
151	for my $pkg (qw(	261	for my $pkg (qw(
152	cf::global cf::attachable	262	cf::global cf::attachable
153	cf::object cf::object::player	263	cf::object cf::object::player
154	cf::client cf::player	264	cf::client cf::player
155	cf::arch cf::living	265	cf::arch cf::living
		266	cf::map cf::mapspace
156	cf::map cf::party cf::region	267	cf::party cf::region
157	)) {	268	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	269	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	270	}
161		271
162	$Event::DIED = sub {	272	$EV::DIED = sub {
163	warn "error in event callback: @_";	273	warn "error in event callback: @_";
164	};	274	};
		275
		276	#############################################################################
165		277
166	=head2 UTILITY FUNCTIONS	278	=head2 UTILITY FUNCTIONS
167		279
168	=over 4	280	=over 4
169		281
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	300	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	301	$d
190	} || "[unable to dump $_[0]: '$@']";	302	} || "[unable to dump $_[0]: '$@']";
191	}	303	}
192		304
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	305	=item $ref = cf::decode_json $json
196		306
197	Converts a JSON string into the corresponding perl data structure.	307	Converts a JSON string into the corresponding perl data structure.
198		308
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	309	=item $json = cf::encode_json $ref
207		310
208	Converts a perl data structure into its JSON representation.	311	Converts a perl data structure into its JSON representation.
209		312
210	=cut	313	=cut
211		314
212	sub to_json($) {	315	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	316
214	JSON::Syck::Dump $_[0]	317	sub encode_json($) { $json_coder->encode ($_[0]) }
		318	sub decode_json($) { $json_coder->decode ($_[0]) }
		319
		320	=item cf::post_init { BLOCK }
		321
		322	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		323	but I<before> the server starts ticking again.
		324
		325	The cdoeblock will have a single boolean argument to indicate whether this
		326	is a reload or not.
		327
		328	=cut
		329
		330	sub post_init(&) {
		331	push @POST_INIT, shift;
215	}	332	}
216		333
217	=item cf::lock_wait $string	334	=item cf::lock_wait $string
218		335
219	Wait until the given lock is available. See cf::lock_acquire.	336	Wait until the given lock is available. See cf::lock_acquire.
220		337
221	=item my $lock = cf::lock_acquire $string	338	=item my $lock = cf::lock_acquire $string
222		339
223	Wait until the given lock is available and then acquires it and returns	340	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	341	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	342	for example when the coroutine gets canceled), the lock is automatically
226	returned.	343	returned.
227		344
		345	Locks are *not* recursive, locking from the same coro twice results in a
		346	deadlocked coro.
		347
228	Lock names should begin with a unique identifier (for example, cf::map::find	348	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	349	uses map_find and cf::map::load uses map_load).
230		350
231	=cut	351	=item $locked = cf::lock_active $string
232		352
233	our %LOCK;	353	Return true if the lock is currently active, i.e. somebody has locked it.
		354
		355	=cut
		356
		357	our $LOCKS = new Coro::SemaphoreSet;
234		358
235	sub lock_wait($) {	359	sub lock_wait($) {
236	my ($key) = @_;	360	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	361	}
244		362
245	sub lock_acquire($) {	363	sub lock_acquire($) {
246	my ($key) = @_;	364	$LOCKS->guard ($_[0])
		365	}
247		366
248	# wait, to be sure we are not locked	367	sub lock_active($) {
249	lock_wait $key;	368	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	369	}
258		370
259	sub freeze_mainloop {	371	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	372	tick_inhibit_inc;
261		373
262	my $guard = Coro::guard { $TICK_WATCHER->start };	374	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	375	}
264	$guard	376
		377	=item cf::periodic $interval, $cb
		378
		379	Like EV::periodic, but randomly selects a starting point so that the actions
		380	get spread over timer.
		381
		382	=cut
		383
		384	sub periodic($$) {
		385	my ($interval, $cb) = @_;
		386
		387	my $start = rand List::Util::min 180, $interval;
		388
		389	EV::periodic $start, $interval, 0, $cb
		390	}
		391
		392	=item cf::get_slot $time[, $priority[, $name]]
		393
		394	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		395	This call blocks and returns only when you have at least C<$time> seconds
		396	of cpu time till the next tick. The slot is only valid till the next cede.
		397
		398	The optional C<$name> can be used to identify the job to run. It might be
		399	used for statistical purposes and should identify the same time-class.
		400
		401	Useful for short background jobs.
		402
		403	=cut
		404
		405	our @SLOT_QUEUE;
		406	our $SLOT_QUEUE;
		407
		408	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		409	$SLOT_QUEUE = Coro::async {
		410	$Coro::current->desc ("timeslot manager");
		411
		412	my $signal = new Coro::Signal;
		413
		414	while () {
		415	next_job:
		416	my $avail = cf::till_tick;
		417	if ($avail > 0.01) {
		418	for (0 .. $#SLOT_QUEUE) {
		419	if ($SLOT_QUEUE[$_][0] < $avail) {
		420	my $job = splice @SLOT_QUEUE, $_, 1, ();
		421	$job->[2]->send;
		422	Coro::cede;
		423	goto next_job;
		424	}
		425	}
		426	}
		427
		428	if (@SLOT_QUEUE) {
		429	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		430	push @cf::WAIT_FOR_TICK, $signal;
		431	$signal->wait;
		432	} else {
		433	Coro::schedule;
		434	}
		435	}
		436	};
		437
		438	sub get_slot($;$$) {
		439	return if tick_inhibit || $Coro::current == $Coro::main;
		440
		441	my ($time, $pri, $name) = @_;
		442
		443	$time = $TICK * .6 if $time > $TICK * .6;
		444	my $sig = new Coro::Signal;
		445
		446	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		447	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		448	$SLOT_QUEUE->ready;
		449	$sig->wait;
265	}	450	}
266		451
267	=item cf::async { BLOCK }	452	=item cf::async { BLOCK }
268		453
269	Currently the same as Coro::async_pool, meaning you cannot use	454	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		459
275	BEGIN { *async = \&Coro::async_pool }	460	BEGIN { *async = \&Coro::async_pool }
276		461
277	=item cf::sync_job { BLOCK }	462	=item cf::sync_job { BLOCK }
278		463
279	The design of crossfire+ requires that the main coro ($Coro::main) is	464	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	465	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	466	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		467	acceptable.
282		468
283	If it must be done, put the blocking parts into C<sync_job>. This will run	469	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	470	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	471	server will be frozen during this time, so the block should either finish
286	fast or be very important.	472	fast or be very important.
…		…
289		475
290	sub sync_job(&) {	476	sub sync_job(&) {
291	my ($job) = @_;	477	my ($job) = @_;
292		478
293	if ($Coro::current == $Coro::main) {	479	if ($Coro::current == $Coro::main) {
		480	my $time = EV::time;
		481
294	# this is the main coro, too bad, we have to block	482	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	483	# till the operation succeeds, freezing the server :/
296		484
297	# TODO: use suspend/resume instead	485	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	486
299	my $freeze_guard = freeze_mainloop;	487	my $freeze_guard = freeze_mainloop;
300		488
301	my $busy = 1;	489	my $busy = 1;
302	my @res;	490	my @res;
303		491
304	(async {	492	(async {
		493	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	494	@res = eval { $job->() };
306	warn $@ if $@;	495	warn $@ if $@;
307	undef $busy;	496	undef $busy;
308	})->prio (Coro::PRIO_MAX);	497	})->prio (Coro::PRIO_MAX);
309		498
310	while ($busy) {	499	while ($busy) {
311	Coro::cede or Event::one_event;	500	if (Coro::nready) {
		501	Coro::cede_notself;
		502	} else {
		503	EV::loop EV::LOOP_ONESHOT;
312	}	504	}
		505	}
		506
		507	my $time = EV::time - $time;
		508
		509	$TICK_START += $time; # do not account sync jobs to server load
313		510
314	wantarray ? @res : $res[0]	511	wantarray ? @res : $res[0]
315	} else {	512	} else {
316	# we are in another coroutine, how wonderful, everything just works	513	# we are in another coroutine, how wonderful, everything just works
317		514
…		…
337	$EXT_CORO{$coro+0} = $coro;	534	$EXT_CORO{$coro+0} = $coro;
338		535
339	$coro	536	$coro
340	}	537	}
341		538
342	sub write_runtime {	539	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		540
345	my $runtime = cf::localdir . "/runtime";	541	Executes the given code block with the given arguments in a seperate
		542	process, returning the results. Everything must be serialisable with
		543	Coro::Storable. May, of course, block. Note that the executed sub may
		544	never block itself or use any form of event handling.
346		545
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	546	=cut
348	or return;
349		547
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	548	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	549	my ($cb, @args) = @_;
352	and return;
353		550
354	aio_fsync $fh	551	# we seemingly have to make a local copy of the whole thing,
355	and return;	552	# otherwise perl prematurely frees the stuff :/
		553	# TODO: investigate and fix (likely this will be rather laborious)
356		554
357	close $fh	555	my @res = Coro::Util::fork_eval {
358	or return;	556	reset_signals;
		557	&$cb
		558	}, @args;
359		559
360	aio_rename "$runtime~", $runtime	560	wantarray ? @res : $res[-1]
361	and return;	561	}
362		562
		563	=item $coin = coin_from_name $name
		564
		565	=cut
		566
		567	our %coin_alias = (
		568	"silver" => "silvercoin",
		569	"silvercoin" => "silvercoin",
		570	"silvercoins" => "silvercoin",
		571	"gold" => "goldcoin",
		572	"goldcoin" => "goldcoin",
		573	"goldcoins" => "goldcoin",
		574	"platinum" => "platinacoin",
		575	"platinumcoin" => "platinacoin",
		576	"platinumcoins" => "platinacoin",
		577	"platina" => "platinacoin",
		578	"platinacoin" => "platinacoin",
		579	"platinacoins" => "platinacoin",
		580	"royalty" => "royalty",
		581	"royalties" => "royalty",
		582	);
		583
		584	sub coin_from_name($) {
		585	$coin_alias{$_[0]}
		586	? cf::arch::find $coin_alias{$_[0]}
		587	: undef
		588	}
		589
		590	=item $value = cf::db_get $family => $key
		591
		592	Returns a single value from the environment database.
		593
		594	=item cf::db_put $family => $key => $value
		595
		596	Stores the given C<$value> in the family. It can currently store binary
		597	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		598
		599	=item $db = cf::db_table "name"
		600
		601	Create and/or open a new database table. The string must not be "db" and must be unique
		602	within each server.
		603
		604	=cut
		605
		606	sub db_table($) {
		607	my ($name) = @_;
		608	my $db = BDB::db_create $DB_ENV;
		609
		610	eval {
		611	$db->set_flags (BDB::CHKSUM);
		612
		613	utf8::encode $name;
		614	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		615	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		616	cf::cleanup "db_open(db): $!" if $!;
		617	};
		618	cf::cleanup "db_open(db): $@" if $@;
		619
		620	$db
		621	}
		622
		623	our $DB;
		624
		625	sub db_init {
		626	cf::sync_job {
		627	$DB ||= db_table "db";
		628	};
		629	}
		630
		631	sub db_get($$) {
		632	my $key = "$_[0]/$_[1]";
		633
		634	cf::sync_job {
		635	BDB::db_get $DB, undef, $key, my $data;
		636
		637	$! ? ()
		638	: $data
363	1	639	}
		640	}
		641
		642	sub db_put($$$) {
		643	BDB::dbreq_pri 4;
		644	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		645	}
		646
		647	=item cf::cache $id => [$paths...], $processversion => $process
		648
		649	Generic caching function that returns the value of the resource $id,
		650	caching and regenerating as required.
		651
		652	This function can block.
		653
		654	=cut
		655
		656	sub cache {
		657	my ($id, $src, $processversion, $process) = @_;
		658
		659	my $meta =
		660	join "\x00",
		661	$processversion,
		662	map {
		663	aio_stat $_
		664	and Carp::croak "$_: $!";
		665
		666	($_, (stat _)[7,9])
		667	} @$src;
		668
		669	my $dbmeta = db_get cache => "$id/meta";
		670	if ($dbmeta ne $meta) {
		671	# changed, we may need to process
		672
		673	my @data;
		674	my $md5;
		675
		676	for (0 .. $#$src) {
		677	0 <= aio_load $src->[$_], $data[$_]
		678	or Carp::croak "$src->[$_]: $!";
		679	}
		680
		681	# if processing is expensive, check
		682	# checksum first
		683	if (1) {
		684	$md5 =
		685	join "\x00",
		686	$processversion,
		687	map {
		688	cf::cede_to_tick;
		689	($src->[$_], Digest::MD5::md5_hex $data[$_])
		690	} 0.. $#$src;
		691
		692
		693	my $dbmd5 = db_get cache => "$id/md5";
		694	if ($dbmd5 eq $md5) {
		695	db_put cache => "$id/meta", $meta;
		696
		697	return db_get cache => "$id/data";
		698	}
		699	}
		700
		701	my $t1 = Time::HiRes::time;
		702	my $data = $process->(\@data);
		703	my $t2 = Time::HiRes::time;
		704
		705	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		706
		707	db_put cache => "$id/data", $data;
		708	db_put cache => "$id/md5" , $md5;
		709	db_put cache => "$id/meta", $meta;
		710
		711	return $data;
		712	}
		713
		714	db_get cache => "$id/data"
		715	}
		716
		717	=item cf::datalog type => key => value, ...
		718
		719	Log a datalog packet of the given type with the given key-value pairs.
		720
		721	=cut
		722
		723	sub datalog($@) {
		724	my ($type, %kv) = @_;
		725	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	726	}
365		727
366	=back	728	=back
367		729
368	=cut	730	=cut
369		731
370	#############################################################################	732	#############################################################################
371		733
372	=head2 ATTACHABLE OBJECTS	734	=head2 ATTACHABLE OBJECTS
373		735
374	Many objects in crossfire are so-called attachable objects. That means you can	736	Many objects in deliantra are so-called attachable objects. That means you can
375	attach callbacks/event handlers (a collection of which is called an "attachment")	737	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	738	to it. All such attachable objects support the following methods.
377		739
378	In the following description, CLASS can be any of C<global>, C<object>	740	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	741	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	742	Deliantra).
381		743
382	=over 4	744	=over 4
383		745
384	=item $attachable->attach ($attachment, key => $value...)	746	=item $attachable->attach ($attachment, key => $value...)
385		747
…		…
429	=item cf::CLASS::attachment $name, ...	791	=item cf::CLASS::attachment $name, ...
430		792
431	Register an attachment by C<$name> through which attachable objects of the	793	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	794	given CLASS can refer to this attachment.
433		795
434	Some classes such as crossfire maps and objects can specify attachments	796	Some classes such as deliantra maps and objects can specify attachments
435	that are attached at load/instantiate time, thus the need for a name.	797	that are attached at load/instantiate time, thus the need for a name.
436		798
437	These calls expect any number of the following handler/hook descriptions:	799	These calls expect any number of the following handler/hook descriptions:
438		800
439	=over 4	801	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	861	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	862	our @CB_MAP = ();
501		863
502	my %attachment;	864	my %attachment;
503		865
		866	sub cf::attachable::thawer_merge {
		867	# simply override everything except _meta
		868	local $_[0]{_meta};
		869	%{$_[0]} = %{$_[1]};
		870	}
		871
504	sub _attach_cb($$$$) {	872	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	873	my ($registry, $event, $prio, $cb) = @_;
506		874
507	use sort 'stable';	875	use sort 'stable';
508		876
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	910	$registry = $CB_TYPE[$object_type] ||= [];
543		911
544	} elsif ($type eq "subtype") {	912	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	913	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	914	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	915	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		916
549	} elsif ($type eq "package") {	917	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	918	my $pkg = shift @arg;
551		919
552	while (my ($name, $id) = each %cb_id) {	920	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	949	_attach $registry, $klass, @attach;
582	}	950	}
583		951
584	$obj->{$name} = \%arg;	952	$obj->{$name} = \%arg;
585	} else {	953	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	954	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	955	}
588		956
589	$obj->{_attachment}{$name} = undef;	957	$obj->{_attachment}{$name} = undef;
590	}	958	}
591		959
…		…
593	if (ref $_[0]) {	961	if (ref $_[0]) {
594	_object_attach @_;	962	_object_attach @_;
595	} else {	963	} else {
596	_attach shift->_attach_registry, @_;	964	_attach shift->_attach_registry, @_;
597	}	965	}
		966	_recalc_want;
598	};	967	};
599		968
600	# all those should be optimised	969	# all those should be optimised
601	sub cf::attachable::detach {	970	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	971	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	974	delete $obj->{_attachment}{$name};
606	reattach ($obj);	975	reattach ($obj);
607	} else {	976	} else {
608	Carp::croak "cannot, currently, detach class attachments";	977	Carp::croak "cannot, currently, detach class attachments";
609	}	978	}
		979	_recalc_want;
610	};	980	};
611		981
612	sub cf::attachable::attached {	982	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	983	my ($obj, $name) = @_;
614		984
…		…
629	";	999	";
630	die if $@;	1000	die if $@;
631	}	1001	}
632		1002
633	our $override;	1003	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1004	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		1005
636	sub override {	1006	sub override {
637	$override = 1;	1007	$override = 1;
638	@invoke_results = ();	1008	@INVOKE_RESULTS = (@_);
639	}	1009	}
640		1010
641	sub do_invoke {	1011	sub do_invoke {
642	my $event = shift;	1012	my $event = shift;
643	my $callbacks = shift;	1013	my $callbacks = shift;
644		1014
645	@invoke_results = ();	1015	@INVOKE_RESULTS = ();
646		1016
647	local $override;	1017	local $override;
648		1018
649	for (@$callbacks) {	1019	for (@$callbacks) {
650	eval { &{$_->[1]} };	1020	eval { &{$_->[1]} };
…		…
659	}	1029	}
660		1030
661	0	1031	0
662	}	1032	}
663		1033
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1035
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1037
668	Generate an object-specific event with the given arguments.	1038	Generate an object-specific event with the given arguments.
669		1039
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1040	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	1041	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	1042	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1043
674	=back	1044	=back
675		1045
676	=cut	1046	=cut
677		1047
678	#############################################################################	1048	#############################################################################
679	# object support	1049	# object support
		1050
		1051	sub _object_equal($$);
		1052	sub _object_equal($$) {
		1053	my ($a, $b) = @_;
		1054
		1055	return 0 unless (ref $a) eq (ref $b);
		1056
		1057	if ("HASH" eq ref $a) {
		1058	my @ka = keys %$a;
		1059	my @kb = keys %$b;
		1060
		1061	return 0 if @ka != @kb;
		1062
		1063	for (0 .. $#ka) {
		1064	return 0 unless $ka[$_] eq $kb[$_];
		1065	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1066	}
		1067
		1068	} elsif ("ARRAY" eq ref $a) {
		1069
		1070	return 0 if @$a != @$b;
		1071
		1072	for (0 .. $#$a) {
		1073	return 0 unless _object_equal $a->[$_], $b->[$_];
		1074	}
		1075
		1076	} elsif ($a ne $b) {
		1077	return 0;
		1078	}
		1079
		1080	1
		1081	}
		1082
		1083	our $SLOW_MERGES;#d#
		1084	sub _can_merge {
		1085	my ($ob1, $ob2) = @_;
		1086
		1087	++$SLOW_MERGES;#d#
		1088
		1089	# we do the slow way here
		1090	return _object_equal $ob1, $ob2
		1091	}
680		1092
681	sub reattach {	1093	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1094	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1095	my ($obj) = @_;
		1096
		1097	# no longer needed after getting rid of delete_package?
		1098	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1099
685	my $registry = $obj->registry;	1100	my $registry = $obj->registry;
686		1101
687	@$registry = ();	1102	@$registry = ();
688		1103
…		…
703	cf::attachable->attach (	1118	cf::attachable->attach (
704	prio => -1000000,	1119	prio => -1000000,
705	on_instantiate => sub {	1120	on_instantiate => sub {
706	my ($obj, $data) = @_;	1121	my ($obj, $data) = @_;
707		1122
708	$data = from_json $data;	1123	$data = decode_json $data;
709		1124
710	for (@$data) {	1125	for (@$data) {
711	my ($name, $args) = @$_;	1126	my ($name, $args) = @$_;
712		1127
713	$obj->attach ($name, %{$args || {} });	1128	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1144	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1145	my ($filename, $rdata, $objs) = @_;
731		1146
732	sync_job {	1147	sync_job {
733	if (length $$rdata) {	1148	if (length $$rdata) {
		1149	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1150	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1151	$decname, length $$rdata, scalar @$objs;
736		1152
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1153	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1154	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1155	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
741	close $fh;	1157	aio_close $fh;
742		1158
743	if (@$objs) {	1159	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1160	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1161	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1162	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1163	aio_write $fh, 0, (length $data), $data, 0;
748	aio_fsync $fh;	1164	aio_fsync $fh if $cf::USE_FSYNC;
749	close $fh;	1165	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1166	aio_rename "$filename.pst~", "$filename.pst";
751	}	1167	}
752	} else {	1168	} else {
753	aio_unlink "$filename.pst";	1169	aio_unlink "$filename.pst";
754	}	1170	}
755		1171
756	aio_rename "$filename~", $filename;	1172	aio_rename "$filename~", $filename;
		1173
		1174	$filename =~ s%/[^/]+$%%;
		1175	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1176	} else {
758	warn "FATAL: $filename~: $!\n";	1177	warn "unable to save objects: $filename~: $!\n";
759	}	1178	}
760	} else {	1179	} else {
761	aio_unlink $filename;	1180	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
763	}	1182	}
764	}	1183	};
765	}	1184	}
766		1185
767	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
769		1188
…		…
781	or return;	1200	or return;
782		1201
783	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
785	or return;	1204	or return;
		1205
786	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
787	}	1208	}
788		1209
		1210	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
791	return ($data, $av);	1214	($data, $av)
792	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
793		1222
794	#############################################################################	1223	#############################################################################
795	# command handling &c	1224	# command handling &c
796		1225
797	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1240	}
812		1241
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1243
815	Register a callbackf ro execution when the client sends an extcmd packet.	1244	Register a callback for execution when the client sends an (synchronous)
		1245	extcmd packet. Ext commands will be processed in the order they are
		1246	received by the server, like other user commands. The first argument is
		1247	the logged-in player. Ext commands can only be processed after a player
		1248	has logged in successfully.
816		1249
817	If the callback returns something, it is sent back as if reply was being	1250	If the callback returns something, it is sent back as if reply was being
818	called.	1251	called.
819		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
820	=cut	1264	=cut
821		1265
822	sub register_extcmd {	1266	sub register_extcmd {
823	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
824		1268
825	$EXTCMD{$name} = $cb;	1269	$EXTCMD{$name} = $cb;
826	}	1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
		1276	}
		1277
		1278	use File::Glob ();
827		1279
828	cf::player->attach (	1280	cf::player->attach (
829	on_command => sub {	1281	on_command => sub {
830	my ($pl, $name, $params) = @_;	1282	my ($pl, $name, $params) = @_;
831		1283
…		…
839	cf::override;	1291	cf::override;
840	},	1292	},
841	on_extcmd => sub {	1293	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1294	my ($pl, $buf) = @_;
843		1295
844	my $msg = eval { from_json $buf };	1296	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1297
846	if (ref $msg) {	1298	if (ref $msg) {
		1299	my ($type, $reply, @payload) =
		1300	"ARRAY" eq ref $msg
		1301	? @$msg
		1302	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1303
		1304	my @reply;
		1305
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1306	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1307	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1308	}
		1309
		1310	$pl->ext_reply ($reply, @reply)
		1311	if $reply;
		1312
852	} else {	1313	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1314	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1315	}
855		1316
856	cf::override;	1317	cf::override;
857	},	1318	},
858	);	1319	);
859		1320
		1321	# "readahead" all extensions
860	sub load_extension {	1322	sub cache_extensions {
861	my ($path) = @_;	1323	my $grp = IO::AIO::aio_group;
862		1324
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1325	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
864	my $base = $1;	1326	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1327	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1328	}
888	die $@;
889	}	1329	};
890		1330
891	push @EXTS, $pkg;	1331	$grp
892	}	1332	}
893		1333
894	sub load_extensions {	1334	sub load_extensions {
		1335	cf::sync_job {
		1336	my %todo;
		1337
895	for my $ext (<$LIBDIR/*.ext>) {	1338	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1339	next unless -r $path;
897	eval {	1340
898	load_extension $ext;	1341	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1342	my $base = $1;
		1343	my $pkg = $1;
		1344	$pkg =~ s/[^[:word:]]/_/g;
		1345	$pkg = "ext::$pkg";
		1346
		1347	open my $fh, "<:utf8", $path
		1348	or die "$path: $!";
		1349
		1350	my $source = do { local $/; <$fh> };
		1351
		1352	my %ext = (
		1353	path => $path,
		1354	base => $base,
		1355	pkg => $pkg,
		1356	);
		1357
		1358	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1359	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1360
		1361	$ext{source} =
		1362	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1363	. "#line 1 \"$path\"\n{\n"
		1364	. $source
		1365	. "\n};\n1";
		1366
		1367	$todo{$base} = \%ext;
		1368	}
		1369
		1370	my %done;
		1371	while (%todo) {
		1372	my $progress;
		1373
		1374	while (my ($k, $v) = each %todo) {
		1375	for (split /,\s*/, $v->{meta}{depends}) {
		1376	goto skip
		1377	unless exists $done{$_};
		1378	}
		1379
		1380	warn "... loading '$k' into '$v->{pkg}'\n";
		1381
		1382	unless (eval $v->{source}) {
		1383	my $msg = $@ ? "$v->{path}: $@\n"
		1384	: "$v->{base}: extension inactive.\n";
		1385
		1386	if (exists $v->{meta}{mandatory}) {
		1387	warn $msg;
		1388	cf::cleanup "mandatory extension failed to load, exiting.";
		1389	}
		1390
		1391	warn $msg;
		1392	}
		1393
		1394	$done{$k} = delete $todo{$k};
		1395	push @EXTS, $v->{pkg};
		1396	$progress = 1;
899	1	1397	}
900	} or warn "$ext not loaded: $@";	1398
		1399	skip:
		1400	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1401	unless $progress;
		1402	}
901	}	1403	};
902	}	1404	}
903		1405
904	#############################################################################	1406	#############################################################################
905		1407
		1408	=back
		1409
906	=head2 CORE EXTENSIONS	1410	=head2 CORE EXTENSIONS
907		1411
908	Functions and methods that extend core crossfire objects.	1412	Functions and methods that extend core deliantra objects.
909		1413
910	=cut	1414	=cut
911		1415
912	package cf::player;	1416	package cf::player;
913		1417
…		…
915		1419
916	=head3 cf::player	1420	=head3 cf::player
917		1421
918	=over 4	1422	=over 4
919		1423
		1424	=item cf::player::num_playing
		1425
		1426	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1427
		1428	=cut
		1429
		1430	sub num_playing {
		1431	scalar grep
		1432	$_->ob->map
		1433	&& !$_->hidden
		1434	&& !$_->ob->flag (cf::FLAG_WIZ),
		1435	cf::player::list
		1436	}
		1437
920	=item cf::player::find $login	1438	=item cf::player::find $login
921		1439
922	Returns the given player object, loading it if necessary (might block).	1440	Returns the given player object, loading it if necessary (might block).
923		1441
924	=cut	1442	=cut
925		1443
926	sub playerdir($) {	1444	sub playerdir($) {
927	cf::localdir	1445	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1446	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1447	}
933		1448
934	sub path($) {	1449	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1450	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1451
937	(playerdir $login) . "/$login.pl"	1452	(playerdir $login) . "/playerdata"
938	}	1453	}
939		1454
940	sub find_active($) {	1455	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1456	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1457	and $cf::PLAYER{$_[0]}->active
…		…
945		1460
946	sub exists($) {	1461	sub exists($) {
947	my ($login) = @_;	1462	my ($login) = @_;
948		1463
949	$cf::PLAYER{$login}	1464	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1465	or !aio_stat path $login
951	}	1466	}
952		1467
953	sub find($) {	1468	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1469	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1470	my $login = $_[0];
956		1471
957	my $guard = cf::lock_acquire "user_find:$login";	1472	my $guard = cf::lock_acquire "user_find:$login";
958		1473
959	$cf::PLAYER{$_[0]} || do {	1474	$cf::PLAYER{$_[0]} || do {
960	my $pl = load_pl path $login	1475	# rename old playerfiles to new ones
		1476	#TODO: remove when no longer required
		1477	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1478	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1479	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1480	aio_unlink +(playerdir $login) . "/$login.pl";
		1481
		1482	my $f = new_from_file cf::object::thawer path $login
961	or return;	1483	or return;
		1484
		1485	my $pl = cf::player::load_pl $f
		1486	or return;
		1487
		1488	local $cf::PLAYER_LOADING{$login} = $pl;
		1489	$f->resolve_delayed_derefs;
962	$cf::PLAYER{$login} = $pl	1490	$cf::PLAYER{$login} = $pl
963	}	1491	}
964	}	1492	}
965	}	1493	}
966		1494
…		…
975	return if $pl->{deny_save};	1503	return if $pl->{deny_save};
976		1504
977	aio_mkdir playerdir $pl, 0770;	1505	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1506	$pl->{last_save} = $cf::RUNTIME;
979		1507
		1508	cf::get_slot 0.01;
		1509
980	$pl->save_pl ($path);	1510	$pl->save_pl ($path);
981	Coro::cede;	1511	cf::cede_to_tick;
982	}	1512	}
983		1513
984	sub new($) {	1514	sub new($) {
985	my ($login) = @_;	1515	my ($login) = @_;
986		1516
…		…
992	$cf::PLAYER{$login} = $self;	1522	$cf::PLAYER{$login} = $self;
993		1523
994	$self	1524	$self
995	}	1525	}
996		1526
		1527	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1528
		1529	=cut
		1530
		1531	sub send_msg {
		1532	my $ns = shift->ns
		1533	or return;
		1534	$ns->send_msg (@_);
		1535	}
		1536
997	=item $pl->quit_character	1537	=item $pl->quit_character
998		1538
999	Nukes the player without looking back. If logged in, the connection will	1539	Nukes the player without looking back. If logged in, the connection will
1000	be destroyed. May block for a long time.	1540	be destroyed. May block for a long time.
1001		1541
1002	=cut	1542	=cut
1003		1543
1004	sub quit_character {	1544	sub quit_character {
1005	my ($pl) = @_;	1545	my ($pl) = @_;
1006		1546
		1547	my $name = $pl->ob->name;
		1548
1007	$pl->{deny_save} = 1;	1549	$pl->{deny_save} = 1;
1008	$pl->password ("*"); # this should lock out the player until we nuked the dir	1550	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1009		1551
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1552	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1011	$pl->deactivate;	1553	$pl->deactivate;
		1554	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1555	$pl->ob->check_score;
1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1556	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1013	$pl->ns->destroy if $pl->ns;	1557	$pl->ns->destroy if $pl->ns;
1014		1558
1015	my $path = playerdir $pl;	1559	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1560	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1561	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1562	delete $cf::PLAYER{$pl->ob->name};
1019	$pl->destroy;	1563	$pl->destroy;
		1564
		1565	my $prefix = qr<^~\Q$name\E/>;
		1566
		1567	# nuke player maps
		1568	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1569
1020	IO::AIO::aio_rmtree $temp;	1570	IO::AIO::aio_rmtree $temp;
		1571	}
		1572
		1573	=item $pl->kick
		1574
		1575	Kicks a player out of the game. This destroys the connection.
		1576
		1577	=cut
		1578
		1579	sub kick {
		1580	my ($pl, $kicker) = @_;
		1581
		1582	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1583	$pl->killer ("kicked");
		1584	$pl->ns->destroy;
1021	}	1585	}
1022		1586
1023	=item cf::player::list_logins	1587	=item cf::player::list_logins
1024		1588
1025	Returns am arrayref of all valid playernames in the system, can take a	1589	Returns am arrayref of all valid playernames in the system, can take a
1026	while and may block, so not sync_job-capable, ever.	1590	while and may block, so not sync_job-capable, ever.
1027		1591
1028	=cut	1592	=cut
1029		1593
1030	sub list_logins {	1594	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1595	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1596	or return [];
1033		1597
1034	my @logins;	1598	my @logins;
1035		1599
1036	for my $login (@$dirs) {	1600	for my $login (@$dirs) {
		1601	my $path = path $login;
		1602
		1603	# a .pst is a dead give-away for a valid player
		1604	# if no pst file found, open and chekc for blocked users
		1605	if (aio_stat "$path.pst") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1606	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1607	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1608	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1609	}
1040		1610
1041	utf8::decode $login;	1611	utf8::decode $login;
1042	push @logins, $login;	1612	push @logins, $login;
1043	}	1613	}
1044		1614
…		…
1052		1622
1053	=cut	1623	=cut
1054		1624
1055	sub maps($) {	1625	sub maps($) {
1056	my ($pl) = @_;	1626	my ($pl) = @_;
		1627
		1628	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1629
1058	my $files = aio_readdir playerdir $pl	1630	my $files = aio_readdir playerdir $pl
1059	or return;	1631	or return;
1060		1632
1061	my @paths;	1633	my @paths;
…		…
1063	for (@$files) {	1635	for (@$files) {
1064	utf8::decode $_;	1636	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1637	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1638	next unless /^$PATH_SEP/o;
1067		1639
1068	s/\.map$//;	1640	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1641	}
1071		1642
1072	\@paths	1643	\@paths
1073	}	1644	}
1074		1645
		1646	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1647
		1648	Expand deliantra pod fragments into protocol xml.
		1649
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1650	=item $player->ext_reply ($msgid, @msg)
1076		1651
1077	Sends an ext reply to the player.	1652	Sends an ext reply to the player.
1078		1653
1079	=cut	1654	=cut
1080		1655
1081	sub ext_reply($$$%) {	1656	sub ext_reply($$@) {
1082	my ($self, $id, %msg) = @_;	1657	my ($self, $id, @msg) = @_;
1083		1658
1084	$msg{msgid} = $id;	1659	$self->ns->ext_reply ($id, @msg)
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1660	}
1088		1661
1089	package cf;	1662	=item $player->ext_msg ($type, @msg)
		1663
		1664	Sends an ext event to the client.
		1665
		1666	=cut
		1667
		1668	sub ext_msg($$@) {
		1669	my ($self, $type, @msg) = @_;
		1670
		1671	$self->ns->ext_msg ($type, @msg);
		1672	}
		1673
		1674	=head3 cf::region
		1675
		1676	=over 4
		1677
		1678	=cut
		1679
		1680	package cf::region;
		1681
		1682	=item cf::region::find_by_path $path
		1683
		1684	Tries to decuce the likely region for a map knowing only its path.
		1685
		1686	=cut
		1687
		1688	sub find_by_path($) {
		1689	my ($path) = @_;
		1690
		1691	my ($match, $specificity);
		1692
		1693	for my $region (list) {
		1694	if ($region->{match} && $path =~ $region->{match}) {
		1695	($match, $specificity) = ($region, $region->specificity)
		1696	if $region->specificity > $specificity;
		1697	}
		1698	}
		1699
		1700	$match
		1701	}
1090		1702
1091	=back	1703	=back
1092
1093		1704
1094	=head3 cf::map	1705	=head3 cf::map
1095		1706
1096	=over 4	1707	=over 4
1097		1708
…		…
1101		1712
1102	use Fcntl;	1713	use Fcntl;
1103	use Coro::AIO;	1714	use Coro::AIO;
1104		1715
1105	use overload	1716	use overload
1106	'""' => \&as_string;	1717	'""' => \&as_string,
		1718	fallback => 1;
1107		1719
1108	our $MAX_RESET = 3600;	1720	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1721	our $DEFAULT_RESET = 3000;
1110		1722
1111	sub generate_random_map {	1723	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1724	my ($self, $rmp) = @_;
		1725
		1726	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1113		1727
1114	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1115	$self->_create_random_map (	1729	$self->_create_random_map (
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
…		…
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)	1741	)
1128	}	1742	}
1129		1743
		1744	=item cf::map->register ($regex, $prio)
		1745
		1746	Register a handler for the map path matching the given regex at the
		1747	givne priority (higher is better, built-in handlers have priority 0, the
		1748	default).
		1749
		1750	=cut
		1751
1130	sub register {	1752	sub register {
1131	my (undef, $regex) = @_;	1753	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1754	my $pkg = caller;
1133		1755
1134	no strict;	1756	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1757	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1758
1137	$EXT_MAP{$pkg} = qr<$regex>;	1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1760	}
1139		1761
1140	# also paths starting with '/'	1762	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
1142		1774
1143	sub normalise {	1775	sub normalise {
1144	my ($path, $base) = @_;	1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
1145		1781
1146	# map plan:	1782	# map plan:
1147	#	1783	#
1148	# /! non-realised random map exit (special hack!)	1784	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1785	# {... are special paths that are not being touched
…		…
1177		1813
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		1815
1180	$path = normalise $path, $base;	1816	$path = normalise $path, $base;
1181		1817
1182	for my $pkg (keys %EXT_MAP) {	1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1820	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1821	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1822	$self->init; # pass $1 etc.
1187	return $self;	1823	return $self;
1188	}	1824	}
1189	}	1825	}
1190		1826
1191	Carp::carp "unable to resolve path '$path'.";	1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
1192	()	1828	()
1193	}	1829	}
1194		1830
1195	sub init {	1831	sub init {
1196	my ($self) = @_;	1832	my ($self) = @_;
…		…
1211		1847
1212	# the original (read-only) location	1848	# the original (read-only) location
1213	sub load_path {	1849	sub load_path {
1214	my ($self) = @_;	1850	my ($self) = @_;
1215		1851
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1852	"$MAPDIR/$self->{path}.map"
1217	}	1853	}
1218		1854
1219	# the temporary/swap location	1855	# the temporary/swap location
1220	sub save_path {	1856	sub save_path {
1221	my ($self) = @_;	1857	my ($self) = @_;
1222		1858
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1860	"$TMPDIR/$path.map"
1225	}	1861	}
1226		1862
1227	# the unique path, undef == no special unique path	1863	# the unique path, undef == no special unique path
1228	sub uniq_path {	1864	sub uniq_path {
1229	my ($self) = @_;	1865	my ($self) = @_;
1230		1866
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1868	"$UNIQUEDIR/$path"
1233	}	1869	}
1234		1870
1235	# and all this just because we cannot iterate over	1871	sub decay_objects {
1236	# all maps in C++...
1237	sub change_all_map_light {
1238	my ($change) = @_;	1872	my ($self) = @_;
1239		1873
1240	$_->change_map_light ($change)	1874	return if $self->{deny_reset};
1241	for grep $_->outdoor, values %cf::MAP;	1875
		1876	$self->do_decay_objects;
1242	}	1877	}
1243		1878
1244	sub unlink_save {	1879	sub unlink_save {
1245	my ($self) = @_;	1880	my ($self) = @_;
1246		1881
1247	utf8::encode (my $save = $self->save_path);	1882	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1883	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1884	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	1885	}
1251		1886
1252	sub load_header_from($) {	1887	sub load_header_from($) {
1253	my ($self, $path) = @_;	1888	my ($self, $path) = @_;
1254		1889
1255	utf8::encode $path;	1890	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	1891	my $f = new_from_file cf::object::thawer $path
1257	or return;	1892	or return;
1258		1893
1259	$self->_load_header ($path)	1894	$self->_load_header ($f)
1260	or return;	1895	or return;
1261		1896
		1897	local $MAP_LOADING{$self->{path}} = $self;
		1898	$f->resolve_delayed_derefs;
		1899
1262	$self->{load_path} = $path;	1900	$self->{load_path} = $path;
1263		1901
1264	1	1902	1
1265	}	1903	}
1266		1904
1267	sub load_orig {	1905	sub load_header_orig {
1268	my ($self) = @_;	1906	my ($self) = @_;
1269		1907
1270	$self->load_header_from ($self->load_path)	1908	$self->load_header_from ($self->load_path)
1271	}	1909	}
1272		1910
1273	sub load_temp {	1911	sub load_header_temp {
1274	my ($self) = @_;	1912	my ($self) = @_;
1275		1913
1276	$self->load_header_from ($self->save_path)	1914	$self->load_header_from ($self->save_path)
		1915	}
		1916
		1917	sub prepare_temp {
		1918	my ($self) = @_;
		1919
		1920	$self->last_access ((delete $self->{last_access})
		1921	|| $cf::RUNTIME); #d#
		1922	# safety
		1923	$self->{instantiate_time} = $cf::RUNTIME
		1924	if $self->{instantiate_time} > $cf::RUNTIME;
		1925	}
		1926
		1927	sub prepare_orig {
		1928	my ($self) = @_;
		1929
		1930	$self->{load_original} = 1;
		1931	$self->{instantiate_time} = $cf::RUNTIME;
		1932	$self->last_access ($cf::RUNTIME);
		1933	$self->instantiate;
1277	}	1934	}
1278		1935
1279	sub load_header {	1936	sub load_header {
1280	my ($self) = @_;	1937	my ($self) = @_;
1281		1938
1282	if ($self->load_temp) {	1939	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	1940	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	1941	} else {
1289	$self->load_orig	1942	$self->load_header_orig
1290	or return;	1943	or return;
1291		1944	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	1945	}
		1946
		1947	$self->{deny_reset} = 1
		1948	if $self->no_reset;
		1949
		1950	$self->default_region (cf::region::find_by_path $self->{path})
		1951	unless $self->default_region;
1297		1952
1298	1	1953	1
1299	}	1954	}
1300		1955
1301	sub find;	1956	sub find;
1302	sub find {	1957	sub find {
1303	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1304		1959
1305	$path = normalise $path, $origin && $origin->path;	1960	$path = normalise $path, $origin && $origin->path;
1306		1961
		1962	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	1963	my $guard2 = cf::lock_acquire "map_find:$path";
1308		1964
1309	$cf::MAP{$path} || do {	1965	$cf::MAP{$path} || do {
1310	my $guard = cf::lock_acquire "map_find:$path";
1311	my $map = new_from_path cf::map $path	1966	my $map = new_from_path cf::map $path
1312	or return;	1967	or return;
1313		1968
1314	$map->{last_save} = $cf::RUNTIME;	1969	$map->{last_save} = $cf::RUNTIME;
1315		1970
1316	$map->load_header	1971	$map->load_header
1317	or return;	1972	or return;
1318		1973
1319	if ($map->should_reset) {	1974	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1975	# doing this can freeze the server in a sync job, obviously
		1976	#$cf::WAIT_FOR_TICK->wait;
		1977	undef $guard2;
		1978	undef $guard1;
1320	$map->reset;	1979	$map->reset;
1321	undef $guard;
1322	$map = find $path	1980	return find $path;
1323	or return;
1324	}	1981	}
1325		1982
1326	$cf::MAP{$path} = $map	1983	$cf::MAP{$path} = $map
1327	}	1984	}
1328	}	1985	}
		1986
		1987	sub pre_load { }
		1988	sub post_load { }
1329		1989
1330	sub load {	1990	sub load {
1331	my ($self) = @_;	1991	my ($self) = @_;
1332		1992
		1993	local $self->{deny_reset} = 1; # loading can take a long time
		1994
1333	my $path = $self->{path};	1995	my $path = $self->{path};
		1996
		1997	{
1334	my $guard = cf::lock_acquire "map_load:$path";	1998	my $guard = cf::lock_acquire "map_data:$path";
1335		1999
		2000	return unless $self->valid;
1336	return if $self->in_memory != cf::MAP_SWAPPED;	2001	return unless $self->in_memory == cf::MAP_SWAPPED;
1337		2002
1338	$self->in_memory (cf::MAP_LOADING);	2003	$self->in_memory (cf::MAP_LOADING);
1339		2004
1340	$self->alloc;	2005	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)	2006
		2007	$self->pre_load;
		2008	cf::cede_to_tick;
		2009
		2010	my $f = new_from_file cf::object::thawer $self->{load_path};
		2011	$f->skip_block;
		2012	$self->_load_objects ($f)
1342	or return;	2013	or return;
1343		2014
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2015	$self->post_load_original
1345	if delete $self->{load_original};	2016	if delete $self->{load_original};
1346		2017
1347	if (my $uniq = $self->uniq_path) {	2018	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2019	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2020	unless (aio_stat $uniq) {
		2021	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2022	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2023	$self->_load_objects ($f);
		2024	$f->resolve_delayed_derefs;
		2025	}
1352	}	2026	}
1353	}	2027	}
1354		2028
1355	Coro::cede;	2029	$f->resolve_delayed_derefs;
1356		2030
		2031	cf::cede_to_tick;
1357	# now do the right thing for maps	2032	# now do the right thing for maps
1358	$self->link_multipart_objects;	2033	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2034	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2035	unless $self->difficulty;
1368	Coro::cede;	2036	cf::cede_to_tick;
		2037
		2038	unless ($self->{deny_activate}) {
		2039	$self->decay_objects;
		2040	$self->fix_auto_apply;
		2041	$self->update_buttons;
		2042	cf::cede_to_tick;
1369	$self->activate;	2043	$self->activate;
1370	}	2044	}
1371		2045
		2046	$self->{last_save} = $cf::RUNTIME;
		2047	$self->last_access ($cf::RUNTIME);
		2048
1372	$self->in_memory (cf::MAP_IN_MEMORY);	2049	$self->in_memory (cf::MAP_ACTIVE);
		2050	}
		2051
		2052	$self->post_load;
1373	}	2053	}
1374		2054
1375	sub customise_for {	2055	sub customise_for {
1376	my ($self, $ob) = @_;	2056	my ($self, $ob) = @_;
1377		2057
1378	return find "~" . $ob->name . "/" . $self->{path}	2058	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2059	if $self->per_player;
1380		2060
		2061	# return find "?party/" . $ob->name . "/" . $self->{path}
		2062	# if $self->per_party;
		2063
1381	$self	2064	$self
1382	}	2065	}
1383		2066
1384	# find and load all maps in the 3x3 area around a map	2067	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {	2068	sub load_neighbours {
1386	my ($map) = @_;	2069	my ($map) = @_;
1387		2070
1388	my @diag; # diagonal neighbours	2071	my @neigh; # diagonal neighbours
1389		2072
1390	for (0 .. 3) {	2073	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)	2074	my $neigh = $map->tile_path ($_)
1392	or next;	2075	or next;
1393	$neigh = find $neigh, $map	2076	$neigh = find $neigh, $map
1394	or next;	2077	or next;
1395	$neigh->load;	2078	$neigh->load;
1396		2079
		2080	push @neigh,
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2081	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2082	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}	2083	}
1400		2084
1401	for (@diag) {	2085	for (grep defined $_->[0], @neigh) {
		2086	my ($path, $origin) = @$_;
1402	my $neigh = find @$_	2087	my $neigh = find $path, $origin
1403	or next;	2088	or next;
1404	$neigh->load;	2089	$neigh->load;
1405	}	2090	}
1406	}	2091	}
1407		2092
…		…
1412	}	2097	}
1413		2098
1414	sub do_load_sync {	2099	sub do_load_sync {
1415	my ($map) = @_;	2100	my ($map) = @_;
1416		2101
		2102	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2103	if $Coro::current == $Coro::main;
		2104
1417	cf::sync_job { $map->load };	2105	cf::sync_job { $map->load };
1418	}	2106	}
1419		2107
1420	our %MAP_PREFETCH;	2108	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2109	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2110
1434	sub find_async {	2111	sub find_async {
1435	my ($path, $origin) = @_;	2112	my ($path, $origin, $load) = @_;
1436		2113
1437	$path = normalise $path, $origin && $origin->{path};	2114	$path = normalise $path, $origin && $origin->{path};
1438		2115
1439	if (my $map = $cf::MAP{$path}) {	2116	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2117	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2118	}
		2119
		2120	$MAP_PREFETCH{$path} |= $load;
		2121
		2122	$MAP_PREFETCHER ||= cf::async {
		2123	$Coro::current->{desc} = "map prefetcher";
		2124
		2125	while (%MAP_PREFETCH) {
		2126	while (my ($k, $v) = each %MAP_PREFETCH) {
		2127	if (my $map = find $k) {
		2128	$map->load if $v;
		2129	}
		2130
		2131	delete $MAP_PREFETCH{$k};
		2132	}
		2133	}
		2134	undef $MAP_PREFETCHER;
1441	}	2135	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2136	$MAP_PREFETCHER->prio (6);
1445		2137
1446	()	2138	()
1447	}	2139	}
1448		2140
1449	sub save {	2141	sub save {
1450	my ($self) = @_;	2142	my ($self) = @_;
1451		2143
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;	2144	my $lock = cf::lock_acquire "map_data:$self->{path}";
1453		2145
1454	$self->{last_save} = $cf::RUNTIME;	2146	$self->{last_save} = $cf::RUNTIME;
1455		2147
1456	return unless $self->dirty;	2148	return unless $self->dirty;
1457		2149
…		…
1463	return if $self->{deny_save};	2155	return if $self->{deny_save};
1464		2156
1465	local $self->{last_access} = $self->last_access;#d#	2157	local $self->{last_access} = $self->last_access;#d#
1466		2158
1467	cf::async {	2159	cf::async {
		2160	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2161	$_->contr->save for $self->players;
1469	};	2162	};
		2163
		2164	cf::get_slot 0.02;
1470		2165
1471	if ($uniq) {	2166	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2167	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2168	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1474	} else {	2169	} else {
…		…
1480	my ($self) = @_;	2175	my ($self) = @_;
1481		2176
1482	# save first because save cedes	2177	# save first because save cedes
1483	$self->save;	2178	$self->save;
1484		2179
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2181
1487	return if $self->players;	2182	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;	2183	return if $self->in_memory != cf::MAP_ACTIVE;
1489	return if $self->{deny_save};	2184	return if $self->{deny_save};
1490		2185
		2186	$self->in_memory (cf::MAP_SWAPPED);
		2187
		2188	$self->deactivate;
		2189	$_->clear_links_to ($self) for values %cf::MAP;
1491	$self->clear;	2190	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2191	}
1494		2192
1495	sub reset_at {	2193	sub reset_at {
1496	my ($self) = @_;	2194	my ($self) = @_;
1497		2195
1498	# TODO: safety, remove and allow resettable per-player maps	2196	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2197	return 1e99 if $self->{deny_reset};
1501		2198
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2199	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2200	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2201
…		…
1509	my ($self) = @_;	2206	my ($self) = @_;
1510		2207
1511	$self->reset_at <= $cf::RUNTIME	2208	$self->reset_at <= $cf::RUNTIME
1512	}	2209	}
1513		2210
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2211	sub reset {
1529	my ($self) = @_;	2212	my ($self) = @_;
1530		2213
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2215
1533	return if $self->players;	2216	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2217
1536	warn "resetting map ", $self->path;#d#	2218	warn "resetting map ", $self->path;
		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	# need to save uniques path
		2223	unless ($self->{deny_save}) {
		2224	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2225
		2226	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2227	if $uniq;
		2228	}
1537		2229
1538	delete $cf::MAP{$self->path};	2230	delete $cf::MAP{$self->path};
1539		2231
1540	$self->in_memory (cf::MAP_SWAPPED);	2232	$self->deactivate;
		2233	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2234	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2235
1545	$self->unlink_save;	2236	$self->unlink_save;
1546	$self->destroy;	2237	$self->destroy;
1547	}	2238	}
1548		2239
1549	my $nuke_counter = "aaaa";	2240	my $nuke_counter = "aaaa";
1550		2241
1551	sub nuke {	2242	sub nuke {
1552	my ($self) = @_;	2243	my ($self) = @_;
1553		2244
		2245	{
		2246	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2247
		2248	delete $cf::MAP{$self->path};
		2249
		2250	$self->unlink_save;
		2251
		2252	bless $self, "cf::map";
		2253	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2254	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2255	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2256	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2257
		2258	$cf::MAP{$self->path} = $self;
		2259	}
		2260
1557	$self->reset; # polite request, might not happen	2261	$self->reset; # polite request, might not happen
		2262	}
		2263
		2264	=item $maps = cf::map::tmp_maps
		2265
		2266	Returns an arrayref with all map paths of currently instantiated and saved
		2267	maps. May block.
		2268
		2269	=cut
		2270
		2271	sub tmp_maps() {
		2272	[
		2273	map {
		2274	utf8::decode $_;
		2275	/\.map$/
		2276	? normalise $_
		2277	: ()
		2278	} @{ aio_readdir $TMPDIR or [] }
		2279	]
		2280	}
		2281
		2282	=item $maps = cf::map::random_maps
		2283
		2284	Returns an arrayref with all map paths of currently instantiated and saved
		2285	random maps. May block.
		2286
		2287	=cut
		2288
		2289	sub random_maps() {
		2290	[
		2291	map {
		2292	utf8::decode $_;
		2293	/\.map$/
		2294	? normalise "?random/$_"
		2295	: ()
		2296	} @{ aio_readdir $RANDOMDIR or [] }
		2297	]
1558	}	2298	}
1559		2299
1560	=item cf::map::unique_maps	2300	=item cf::map::unique_maps
1561		2301
1562	Returns an arrayref of paths of all shared maps that have	2302	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2303	instantiated unique items. May block.
1564		2304
1565	=cut	2305	=cut
1566		2306
1567	sub unique_maps() {	2307	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2308	[
1569	or return;	2309	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2310	utf8::decode $_;
1575	next if /\.pst$/;	2311	s/\.map$//; # TODO future compatibility hack
1576	next unless /^$PATH_SEP/o;	2312	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1577		2313	? ()
1578	s/\.map$//;	2314	: normalise $_
1579	push @paths, $_;	2315	} @{ aio_readdir $UNIQUEDIR or [] }
1580	}	2316	]
1581
1582	\@paths
1583	}	2317	}
1584
1585	package cf;
1586		2318
1587	=back	2319	=back
1588		2320
1589	=head3 cf::object	2321	=head3 cf::object
1590		2322
…		…
1594		2326
1595	=over 4	2327	=over 4
1596		2328
1597	=item $ob->inv_recursive	2329	=item $ob->inv_recursive
1598		2330
1599	Returns the inventory of the object _and_ their inventories, recursively.	2331	Returns the inventory of the object I<and> their inventories, recursively,
		2332	but I<not> the object itself.
1600		2333
1601	=cut	2334	=cut
1602		2335
1603	sub inv_recursive_;	2336	sub inv_recursive_;
1604	sub inv_recursive_ {	2337	sub inv_recursive_ {
…		…
1607		2340
1608	sub inv_recursive {	2341	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2342	inv_recursive_ inv $_[0]
1610	}	2343	}
1611		2344
		2345	=item $ref = $ob->ref
		2346
		2347	Creates and returns a persistent reference to an object that can be stored as a string.
		2348
		2349	=item $ob = cf::object::deref ($refstring)
		2350
		2351	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2352	even if the object actually exists. May block.
		2353
		2354	=cut
		2355
		2356	sub deref {
		2357	my ($ref) = @_;
		2358
		2359	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2360	my ($uuid, $name) = ($1, $2);
		2361	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2362	or return;
		2363	$pl->ob->uuid eq $uuid
		2364	or return;
		2365
		2366	$pl->ob
		2367	} else {
		2368	warn "$ref: cannot resolve object reference\n";
		2369	undef
		2370	}
		2371	}
		2372
1612	package cf;	2373	package cf;
1613		2374
1614	=back	2375	=back
1615		2376
1616	=head3 cf::object::player	2377	=head3 cf::object::player
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2383	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2384	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2385	dialogue with the given NPC character.
1625		2386
1626	=cut	2387	=cut
		2388
		2389	our $SAY_CHANNEL = {
		2390	id => "say",
		2391	title => "Map",
		2392	reply => "say ",
		2393	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2394	};
		2395
		2396	our $CHAT_CHANNEL = {
		2397	id => "chat",
		2398	title => "Chat",
		2399	reply => "chat ",
		2400	tooltip => "Player chat and shouts, global to the server.",
		2401	};
1627		2402
1628	# rough implementation of a future "reply" method that works	2403	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2404	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2405	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2406	sub cf::object::player::reply($$$;$) {
…		…
1633		2408
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2410
1636	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1638	} else {	2414	} else {
		2415	my $pl = $self->contr;
		2416
		2417	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2418	my $dialog = $pl->{npc_dialog};
		2419	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2420
		2421	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2423	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2424	}
1641	}	2425	}
		2426	}
		2427
		2428	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2429
		2430	=cut
		2431
		2432	sub cf::object::send_msg {
		2433	my $pl = shift->contr
		2434	or return;
		2435	$pl->send_msg (@_);
1642	}	2436	}
1643		2437
1644	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1645		2439
1646	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1659		2453
1660	=item $player_object->enter_link	2454	=item $player_object->enter_link
1661		2455
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2456	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2457
1664	The player should be reasonably safe there for short amounts of time. You	2458	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2459	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2460	though, as the palyer cannot control the character while it is on the link
		2461	map.
1666		2462
1667	Will never block.	2463	Will never block.
1668		2464
1669	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1670		2466
…		…
1678	=cut	2474	=cut
1679		2475
1680	sub link_map {	2476	sub link_map {
1681	unless ($LINK_MAP) {	2477	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2478	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2479	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2480	$LINK_MAP->load;
1685	}	2481	}
1686		2482
1687	$LINK_MAP	2483	$LINK_MAP
1688	}	2484	}
…		…
1693	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1694		2490
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2492
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1699		2495
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1701	}	2497	}
1702		2498
1703	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1705		2503
1706	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1707		2505
1708	unless ($map) {	2506	unless ($map) {
1709	# restore original map position	2507	# restore original map position
…		…
1723	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1726		2524
1727	$map->load;	2525	$map->load;
1728	$map->load_diag;	2526	$map->load_neighbours;
1729		2527
1730	return unless $self->contr->active;	2528	return unless $self->contr->active;
		2529	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1731	$self->activate_recursive;	2530	$self->activate_recursive;
		2531
		2532	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1732	$self->enter_map ($map, $x, $y);	2533	$self->enter_map ($map, $x, $y);
1733	}	2534	}
1734		2535
1735	cf::player->attach (	2536	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1736	on_logout => sub {
1737	my ($pl) = @_;
1738		2537
1739	# abort map switching before logout	2538	Moves the player to the given map-path and coordinates by first freezing
1740	if ($pl->ob->{_link_pos}) {	2539	her, loading and preparing them map, calling the provided $check callback
1741	cf::sync_job {	2540	that has to return the map if sucecssful, and then unfreezes the player on
1742	$pl->ob->leave_link	2541	the new (success) or old (failed) map position. In either case, $done will
1743	};	2542	be called at the end of this process.
1744	}
1745	},
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2543
1749	# try to abort aborted map switching on player login :)	2544	Note that $check will be called with a potentially non-loaded map, so if
1750	# should happen only on crashes	2545	it needs a loaded map it has to call C<< ->load >>.
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766		2546
1767	=item $player_object->goto ($path, $x, $y)
1768
1769	=cut	2547	=cut
		2548
		2549	our $GOTOGEN;
1770		2550
1771	sub cf::object::player::goto {	2551	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	2552	my ($self, $path, $x, $y, $check, $done) = @_;
		2553
		2554	# do generation counting so two concurrent goto's will be executed in-order
		2555	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		2556
1774	$self->enter_link;	2557	$self->enter_link;
1775		2558
1776	(async {	2559	(async {
1777	my $map = cf::map::find $path;	2560	$Coro::current->{desc} = "player::goto $path $x $y";
		2561
		2562	# *tag paths override both path and x|y
		2563	if ($path =~ /^\*(.*)$/) {
		2564	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2565	my $ob = $obs[rand @obs];
		2566
		2567	# see if we actually can go there
		2568	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2569	$ob = $obs[rand @obs];
		2570	} else {
		2571	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	}
		2573	# else put us there anyways for now #d#
		2574
		2575	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2576	} else {
		2577	($path, $x, $y) = (undef, undef, undef);
		2578	}
		2579	}
		2580
		2581	my $map = eval {
		2582	my $map = defined $path ? cf::map::find $path : undef;
		2583
		2584	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2585	$map = $map->customise_for ($self);
1779		2586	$map = $check->($map) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2587	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2588	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
1784		2590
		2591	$map
		2592	};
		2593
		2594	if ($@) {
		2595	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	LOG llevError | logBacktrace, Carp::longmess $@;
		2597	}
		2598
		2599	if ($gen == $self->{_goto_generation}) {
		2600	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2601	$self->leave_link ($map, $x, $y);
		2602	}
		2603
		2604	$done->() if $done;
1786	})->prio (1);	2605	})->prio (1);
1787	}	2606	}
1788		2607
1789	=item $player_object->enter_exit ($exit_object)	2608	=item $player_object->enter_exit ($exit_object)
1790		2609
…		…
1792		2611
1793	sub parse_random_map_params {	2612	sub parse_random_map_params {
1794	my ($spec) = @_;	2613	my ($spec) = @_;
1795		2614
1796	my $rmp = { # defaults	2615	my $rmp = { # defaults
1797	xsize => 10,	2616	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2617	ysize => (cf::rndm 15, 40),
		2618	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2619	#layout => string,
1799	};	2620	};
1800		2621
1801	for (split /\n/, $spec) {	2622	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2623	my ($k, $v) = split /\s+/, $_, 2;
1803		2624
…		…
1815	# that depends on the exit object	2636	# that depends on the exit object
1816		2637
1817	my $rmp = parse_random_map_params $exit->msg;	2638	my $rmp = parse_random_map_params $exit->msg;
1818		2639
1819	if ($exit->map) {	2640	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2641	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2642	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2643	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2644	$rmp->{origin_y} = $exit->y;
		2645
		2646	$exit->map->touch;
1824	}	2647	}
1825		2648
1826	$rmp->{random_seed} ||= $exit->random_seed;	2649	$rmp->{random_seed} ||= $exit->random_seed;
1827		2650
1828	my $data = cf::to_json $rmp;	2651	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1829	my $md5 = Digest::MD5::md5_hex $data;	2652	my $md5 = Digest::MD5::md5_hex $data;
		2653	my $meta = "$RANDOMDIR/$md5.meta";
1830		2654
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2655	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2656	aio_write $fh, 0, (length $data), $data, 0;
		2657	undef $fh;
		2658	aio_rename "$meta~", $meta;
1833		2659
		2660	my $slaying = "?random/$md5";
		2661
		2662	if ($exit->valid) {
1834	$exit->slaying ("?random/$md5");	2663	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2664	$exit->msg (undef);
		2665	}
1836	}	2666	}
1837	}	2667	}
1838		2668
1839	sub cf::object::player::enter_exit {	2669	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2670	my ($self, $exit) = @_;
…		…
1842	return unless $self->type == cf::PLAYER;	2672	return unless $self->type == cf::PLAYER;
1843		2673
1844	$self->enter_link;	2674	$self->enter_link;
1845		2675
1846	(async {	2676	(async {
1847	$self->deactivate_recursive; # just to be sure	2677	$Coro::current->{desc} = "enter_exit";
		2678
1848	unless (eval {	2679	unless (eval {
		2680	$self->deactivate_recursive; # just to be sure
		2681
		2682	# random map handling
		2683	{
		2684	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2685
1849	prepare_random_map $exit	2686	prepare_random_map $exit
1850	if $exit->slaying eq "/!";	2687	if $exit->slaying eq "/!";
		2688	}
1851		2689
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2690	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2691	my $x = $exit->stats->hp;
		2692	my $y = $exit->stats->sp;
1854		2693
		2694	$self->goto ($map, $x, $y);
		2695
		2696	# if exit is damned, update players death & WoR home-position
		2697	$self->contr->savebed ($map, $x, $y)
		2698	if $exit->flag (cf::FLAG_DAMNED);
		2699
1855	1;	2700	1
1856	}) {	2701	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the deliantra server. "
1858	. "I'll try to bring you back to the map you were before. "	2703	. "I'll try to bring you back to the map you were before. "
1859	. "Please report this to the dungeon master!",	2704	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2706
1862	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1863	$self->leave_link;	2708	$self->leave_link;
1864	}	2709	}
1865	})->prio (1);	2710	})->prio (1);
…		…
1878		2723
1879	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1881		2726
1882	utf8::encode $text;	2727	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2729	}
1885		2730
		2731	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2732
		2733	Send a drawinfo or msg packet to the client, formatting the msg for the
		2734	client if neccessary. C<$type> should be a string identifying the type of
		2735	the message, with C<log> being the default. If C<$color> is negative, suppress
		2736	the message unless the client supports the msg packet.
		2737
		2738	=cut
		2739
		2740	# non-persistent channels (usually the info channel)
		2741	our %CHANNEL = (
		2742	"c/identify" => {
		2743	id => "infobox",
		2744	title => "Identify",
		2745	reply => undef,
		2746	tooltip => "Items recently identified",
		2747	},
		2748	"c/examine" => {
		2749	id => "infobox",
		2750	title => "Examine",
		2751	reply => undef,
		2752	tooltip => "Signs and other items you examined",
		2753	},
		2754	"c/book" => {
		2755	id => "infobox",
		2756	title => "Book",
		2757	reply => undef,
		2758	tooltip => "The contents of a note or book",
		2759	},
		2760	"c/lookat" => {
		2761	id => "infobox",
		2762	title => "Look",
		2763	reply => undef,
		2764	tooltip => "What you saw there",
		2765	},
		2766	"c/who" => {
		2767	id => "infobox",
		2768	title => "Players",
		2769	reply => undef,
		2770	tooltip => "Shows players who are currently online",
		2771	},
		2772	"c/body" => {
		2773	id => "infobox",
		2774	title => "Body Parts",
		2775	reply => undef,
		2776	tooltip => "Shows which body parts you posess and are available",
		2777	},
		2778	"c/statistics" => {
		2779	id => "infobox",
		2780	title => "Statistics",
		2781	reply => undef,
		2782	tooltip => "Shows your primary statistics",
		2783	},
		2784	"c/skills" => {
		2785	id => "infobox",
		2786	title => "Skills",
		2787	reply => undef,
		2788	tooltip => "Shows your experience per skill and item power",
		2789	},
		2790	"c/resistances" => {
		2791	id => "infobox",
		2792	title => "Resistances",
		2793	reply => undef,
		2794	tooltip => "Shows your resistances",
		2795	},
		2796	"c/pets" => {
		2797	id => "infobox",
		2798	title => "Pets",
		2799	reply => undef,
		2800	tooltip => "Shows information abotu your pets/a specific pet",
		2801	},
		2802	"c/uptime" => {
		2803	id => "infobox",
		2804	title => "Uptime",
		2805	reply => undef,
		2806	tooltip => "How long the server has been running since last restart",
		2807	},
		2808	"c/mapinfo" => {
		2809	id => "infobox",
		2810	title => "Map Info",
		2811	reply => undef,
		2812	tooltip => "Information related to the maps",
		2813	},
		2814	"c/party" => {
		2815	id => "party",
		2816	title => "Party",
		2817	reply => "gsay ",
		2818	tooltip => "Messages and chat related to your party",
		2819	},
		2820	"c/death" => {
		2821	id => "death",
		2822	title => "Death",
		2823	reply => undef,
		2824	tooltip => "Reason for and more info about your most recent death",
		2825	},
		2826	"c/say" => $SAY_CHANNEL,
		2827	"c/chat" => $CHAT_CHANNEL,
		2828	);
		2829
		2830	sub cf::client::send_msg {
		2831	my ($self, $channel, $msg, $color, @extra) = @_;
		2832
		2833	$msg = $self->pl->expand_cfpod ($msg)
		2834	unless $color & cf::NDI_VERBATIM;
		2835
		2836	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2837
		2838	# check predefined channels, for the benefit of C
		2839	if ($CHANNEL{$channel}) {
		2840	$channel = $CHANNEL{$channel};
		2841
		2842	$self->ext_msg (channel_info => $channel);
		2843	$channel = $channel->{id};
		2844
		2845	} elsif (ref $channel) {
		2846	# send meta info to client, if not yet sent
		2847	unless (exists $self->{channel}{$channel->{id}}) {
		2848	$self->{channel}{$channel->{id}} = $channel;
		2849	$self->ext_msg (channel_info => $channel);
		2850	}
		2851
		2852	$channel = $channel->{id};
		2853	}
		2854
		2855	return unless @extra || length $msg;
		2856
		2857	# default colour, mask it out
		2858	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2859	if $color & cf::NDI_DEF;
		2860
		2861	my $pkt = "msg "
		2862	. $self->{json_coder}->encode (
		2863	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2864	);
		2865
		2866	# try lzf for large packets
		2867	$pkt = "lzf " . Compress::LZF::compress $pkt
		2868	if 1024 <= length $pkt and $self->{can_lzf};
		2869
		2870	# split very large packets
		2871	if (8192 < length $pkt and $self->{can_lzf}) {
		2872	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2873	$pkt = "frag";
		2874	}
		2875
		2876	$self->send_packet ($pkt);
		2877	}
		2878
		2879	=item $client->ext_msg ($type, @msg)
		2880
		2881	Sends an ext event to the client.
		2882
		2883	=cut
		2884
		2885	sub cf::client::ext_msg($$@) {
		2886	my ($self, $type, @msg) = @_;
		2887
		2888	if ($self->extcmd == 2) {
		2889	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2890	} elsif ($self->extcmd == 1) { # TODO: remove
		2891	push @msg, msgtype => "event_$type";
		2892	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2893	}
		2894	}
		2895
		2896	=item $client->ext_reply ($msgid, @msg)
		2897
		2898	Sends an ext reply to the client.
		2899
		2900	=cut
		2901
		2902	sub cf::client::ext_reply($$@) {
		2903	my ($self, $id, @msg) = @_;
		2904
		2905	if ($self->extcmd == 2) {
		2906	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2907	} elsif ($self->extcmd == 1) {
		2908	#TODO: version 1, remove
		2909	unshift @msg, msgtype => "reply", msgid => $id;
		2910	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2911	}
		2912	}
1886		2913
1887	=item $success = $client->query ($flags, "text", \&cb)	2914	=item $success = $client->query ($flags, "text", \&cb)
1888		2915
1889	Queues a query to the client, calling the given callback with	2916	Queues a query to the client, calling the given callback with
1890	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2917	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1891	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2918	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1892		2919
1893	Queries can fail, so check the return code. Or don't, as queries will become	2920	Queries can fail, so check the return code. Or don't, as queries will
1894	reliable at some point in the future.	2921	become reliable at some point in the future.
1895		2922
1896	=cut	2923	=cut
1897		2924
1898	sub cf::client::query {	2925	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	2926	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	2934	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2935	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		2936
1910	$self->send_packet ($self->{query_queue}[0][0])	2937	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	2938	if @{ $self->{query_queue} } == 1;
		2939
		2940	1
1912	}	2941	}
1913		2942
1914	cf::client->attach (	2943	cf::client->attach (
		2944	on_connect => sub {
		2945	my ($ns) = @_;
		2946
		2947	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2948	},
1915	on_reply => sub {	2949	on_reply => sub {
1916	my ($ns, $msg) = @_;	2950	my ($ns, $msg) = @_;
1917		2951
1918	# this weird shuffling is so that direct followup queries	2952	# this weird shuffling is so that direct followup queries
1919	# get handled first	2953	# get handled first
1920	my $queue = delete $ns->{query_queue}	2954	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	2955	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		2956
1923	(shift @$queue)->[1]->($msg);	2957	(shift @$queue)->[1]->($msg);
		2958	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		2959
1925	push @{ $ns->{query_queue} }, @$queue;	2960	push @{ $ns->{query_queue} }, @$queue;
1926		2961
1927	if (@{ $ns->{query_queue} } == @$queue) {	2962	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	2963	if (@$queue) {
…		…
1930	} else {	2965	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2966	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	2967	}
1933	}	2968	}
1934	},	2969	},
		2970	on_exticmd => sub {
		2971	my ($ns, $buf) = @_;
		2972
		2973	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2974
		2975	if (ref $msg) {
		2976	my ($type, $reply, @payload) =
		2977	"ARRAY" eq ref $msg
		2978	? @$msg
		2979	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2980
		2981	my @reply;
		2982
		2983	if (my $cb = $EXTICMD{$type}) {
		2984	@reply = $cb->($ns, @payload);
		2985	}
		2986
		2987	$ns->ext_reply ($reply, @reply)
		2988	if $reply;
		2989
		2990	} else {
		2991	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2992	}
		2993
		2994	cf::override;
		2995	},
1935	);	2996	);
1936		2997
1937	=item $client->async (\&cb)	2998	=item $client->async (\&cb)
1938		2999
1939	Create a new coroutine, running the specified callback. The coroutine will	3000	Create a new coroutine, running the specified callback. The coroutine will
…		…
1980	our $safe = new Safe "safe";	3041	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3042	our $safe_hole = new Safe::Hole;
1982		3043
1983	$SIG{FPE} = 'IGNORE';	3044	$SIG{FPE} = 'IGNORE';
1984		3045
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3046	$safe->permit_only (Opcode::opset qw(
		3047	:base_core :base_mem :base_orig :base_math
		3048	grepstart grepwhile mapstart mapwhile
		3049	sort time
		3050	));
1986		3051
1987	# here we export the classes and methods available to script code	3052	# here we export the classes and methods available to script code
1988		3053
1989	=pod	3054	=pod
1990		3055
1991	The following fucntions and emthods are available within a safe environment:	3056	The following functions and methods are available within a safe environment:
1992		3057
1993	cf::object contr pay_amount pay_player map	3058	cf::object
		3059	contr pay_amount pay_player map x y force_find force_add destroy
		3060	insert remove name archname title slaying race decrease split
		3061	value
		3062
1994	cf::object::player player	3063	cf::object::player
1995	cf::player peaceful	3064	player
1996	cf::map trigger	3065
		3066	cf::player
		3067	peaceful
		3068
		3069	cf::map
		3070	trigger
1997		3071
1998	=cut	3072	=cut
1999		3073
2000	for (	3074	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3075	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3076	insert remove inv nrof name archname title slaying race
		3077	decrease split destroy change_exp value msg lore send_msg)],
2002	["cf::object::player" => qw(player)],	3078	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3079	["cf::player" => qw(peaceful send_msg)],
2004	["cf::map" => qw(trigger)],	3080	["cf::map" => qw(trigger)],
2005	) {	3081	) {
2006	no strict 'refs';	3082	no strict 'refs';
2007	my ($pkg, @funs) = @$_;	3083	my ($pkg, @funs) = @$_;
2008	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3084	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2025	my ($code, %vars) = @_;	3101	my ($code, %vars) = @_;
2026		3102
2027	my $qcode = $code;	3103	my $qcode = $code;
2028	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3104	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2029	$qcode =~ s/\n/\\n/g;	3105	$qcode =~ s/\n/\\n/g;
		3106
		3107	%vars = (_dummy => 0) unless %vars;
2030		3108
2031	local $_;	3109	local $_;
2032	local @safe::cf::_safe_eval_args = values %vars;	3110	local @safe::cf::_safe_eval_args = values %vars;
2033		3111
2034	my $eval =	3112	my $eval =
…		…
2077	=back	3155	=back
2078		3156
2079	=cut	3157	=cut
2080		3158
2081	#############################################################################	3159	#############################################################################
		3160	# the server's init and main functions
2082		3161
2083	=head2 EXTENSION DATABASE SUPPORT	3162	sub load_facedata($) {
		3163	my ($path) = @_;
2084		3164
2085	Crossfire maintains a very simple database for extension use. It can	3165	# HACK to clear player env face cache, we need some signal framework
2086	currently store anything that can be serialised using Storable, which	3166	# for this (global event?)
2087	excludes objects.	3167	%ext::player_env::MUSIC_FACE_CACHE = ();
2088		3168
2089	The parameter C<$family> should best start with the name of the extension	3169	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090	using it, it should be unique.
2091		3170
2092	=over 4	3171	warn "loading facedata from $path\n";
2093		3172
2094	=item $hashref = cf::db_get $family	3173	my $facedata;
		3174	0 < aio_load $path, $facedata
		3175	or die "$path: $!";
2095		3176
2096	Return a hashref for use by the extension C<$family>, which can be	3177	$facedata = Coro::Storable::thaw $facedata;
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099		3178
2100	=item $value = cf::db_get $family => $key	3179	$facedata->{version} == 2
		3180	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		3181
2102	Returns a single value from the database	3182	# patch in the exptable
2103		3183	$facedata->{resource}{"res/exp_table"} = {
2104	=item cf::db_put $family => $hashref	3184	type => FT_RSRC,
2105		3185	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125
2126	{
2127	my $path = cf::localdir . "/database.pst";
2128
2129	sub db_load() {
2130	$DB = stat $path ? Storable::retrieve $path : { };
2131	}
2132
2133	my $pid;
2134
2135	sub db_save() {
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	3186	};
		3187	cf::cede_to_tick;
2155		3188
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}	3189	{
		3190	my $faces = $facedata->{faceinfo};
2160		3191
2161	sub db_get($;$) {	3192	while (my ($face, $info) = each %$faces) {
2162	@_ >= 2	3193	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166		3194
2167	sub db_put($$;$) {	3195	cf::face::set_visibility $idx, $info->{visibility};
2168	if (@_ >= 3) {	3196	cf::face::set_magicmap $idx, $info->{magicmap};
2169	$DB->{$_[0]}{$_[1]} = $_[2];	3197	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2170	} else {	3198	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2171	$DB->{$_[0]} = $_[1];
2172	}
2173	db_dirty;
2174	}
2175		3199
2176	cf::global->attach (	3200	cf::cede_to_tick;
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3201	}
2181	);
2182	}
2183		3202
2184	#############################################################################	3203	while (my ($face, $info) = each %$faces) {
2185	# the server's main()	3204	next unless $info->{smooth};
2186		3205
2187	sub cfg_load {	3206	my $idx = cf::face::find $face
		3207	or next;
		3208
		3209	if (my $smooth = cf::face::find $info->{smooth}) {
		3210	cf::face::set_smooth $idx, $smooth;
		3211	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3212	} else {
		3213	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3214	}
		3215
		3216	cf::cede_to_tick;
		3217	}
		3218	}
		3219
		3220	{
		3221	my $anims = $facedata->{animinfo};
		3222
		3223	while (my ($anim, $info) = each %$anims) {
		3224	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3225	cf::cede_to_tick;
		3226	}
		3227
		3228	cf::anim::invalidate_all; # d'oh
		3229	}
		3230
		3231	{
		3232	# TODO: for gcfclient pleasure, we should give resources
		3233	# that gcfclient doesn't grok a >10000 face index.
		3234	my $res = $facedata->{resource};
		3235
		3236	while (my ($name, $info) = each %$res) {
		3237	if (defined $info->{type}) {
		3238	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3239	my $data;
		3240
		3241	if ($info->{type} & 1) {
		3242	# prepend meta info
		3243
		3244	my $meta = $enc->encode ({
		3245	name => $name,
		3246	%{ $info->{meta} || {} },
		3247	});
		3248
		3249	$data = pack "(w/a*)*", $meta, $info->{data};
		3250	} else {
		3251	$data = $info->{data};
		3252	}
		3253
		3254	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3255	cf::face::set_type $idx, $info->{type};
		3256	} else {
		3257	$RESOURCE{$name} = $info;
		3258	}
		3259
		3260	cf::cede_to_tick;
		3261	}
		3262	}
		3263
		3264	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3265
		3266	1
		3267	}
		3268
		3269	cf::global->attach (on_resource_update => sub {
		3270	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3271	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3272
		3273	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3274	my $sound = $soundconf->{compat}[$_]
		3275	or next;
		3276
		3277	my $face = cf::face::find "sound/$sound->[1]";
		3278	cf::sound::set $sound->[0] => $face;
		3279	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3280	}
		3281
		3282	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3283	my $face = cf::face::find "sound/$v";
		3284	cf::sound::set $k => $face;
		3285	}
		3286	}
		3287	});
		3288
		3289	register_exticmd fx_want => sub {
		3290	my ($ns, $want) = @_;
		3291
		3292	while (my ($k, $v) = each %$want) {
		3293	$ns->fx_want ($k, $v);
		3294	}
		3295	};
		3296
		3297	sub load_resource_file($) {
		3298	my $guard = lock_acquire "load_resource_file";
		3299
		3300	my $status = load_resource_file_ $_[0];
		3301	get_slot 0.1, 100;
		3302	cf::arch::commit_load;
		3303
		3304	$status
		3305	}
		3306
		3307	sub reload_regions {
		3308	# HACK to clear player env face cache, we need some signal framework
		3309	# for this (global event?)
		3310	%ext::player_env::MUSIC_FACE_CACHE = ();
		3311
		3312	load_resource_file "$MAPDIR/regions"
		3313	or die "unable to load regions file\n";
		3314
		3315	for (cf::region::list) {
		3316	$_->{match} = qr/$_->{match}/
		3317	if exists $_->{match};
		3318	}
		3319	}
		3320
		3321	sub reload_facedata {
		3322	load_facedata "$DATADIR/facedata"
		3323	or die "unable to load facedata\n";
		3324	}
		3325
		3326	sub reload_archetypes {
		3327	load_resource_file "$DATADIR/archetypes"
		3328	or die "unable to load archetypes\n";
		3329	}
		3330
		3331	sub reload_treasures {
		3332	load_resource_file "$DATADIR/treasures"
		3333	or die "unable to load treasurelists\n";
		3334	}
		3335
		3336	sub reload_resources {
		3337	warn "reloading resource files...\n";
		3338
		3339	reload_facedata;
		3340	reload_archetypes;
		3341	reload_regions;
		3342	reload_treasures;
		3343
		3344	warn "finished reloading resource files\n";
		3345	}
		3346
		3347	sub reload_config {
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3348	open my $fh, "<:utf8", "$CONFDIR/config"
2189	or return;	3349	or return;
2190		3350
2191	local $/;	3351	local $/;
2192	*CFG = YAML::Syck::Load <$fh>;	3352	*CFG = YAML::Load <$fh>;
2193		3353
2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3354	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2195		3355
2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3356	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3357	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2203	};	3363	};
2204	warn $@ if $@;	3364	warn $@ if $@;
2205	}	3365	}
2206	}	3366	}
2207		3367
		3368	sub pidfile() {
		3369	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3370	or die "$PIDFILE: $!";
		3371	flock $fh, &Fcntl::LOCK_EX
		3372	or die "$PIDFILE: flock: $!";
		3373	$fh
		3374	}
		3375
		3376	# make sure only one server instance is running at any one time
		3377	sub atomic {
		3378	my $fh = pidfile;
		3379
		3380	my $pid = <$fh>;
		3381	kill 9, $pid if $pid > 0;
		3382
		3383	seek $fh, 0, 0;
		3384	print $fh $$;
		3385	}
		3386
2208	sub main {	3387	sub main {
		3388	cf::init_globals; # initialise logging
		3389
		3390	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3391	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3392	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3393	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3394
		3395	cf::init_experience;
		3396	cf::init_anim;
		3397	cf::init_attackmess;
		3398	cf::init_dynamic;
		3399
		3400	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3401
2209	# we must not ever block the main coroutine	3402	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3403	local $Coro::idle = sub {
2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3404	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2212	async { Event::one_event };	3405	(async {
		3406	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3407	EV::loop EV::LOOP_ONESHOT;
		3408	})->prio (Coro::PRIO_MAX);
2213	};	3409	};
2214		3410
2215	cfg_load;	3411	evthread_start IO::AIO::poll_fileno;
2216	db_load;	3412
		3413	cf::sync_job {
		3414	reload_resources;
		3415	reload_config;
		3416	db_init;
		3417
		3418	cf::load_settings;
		3419	cf::load_materials;
		3420	cf::init_uuid;
		3421	cf::init_signals;
		3422	cf::init_commands;
		3423	cf::init_skills;
		3424
		3425	cf::init_beforeplay;
		3426
		3427	atomic;
		3428
2217	load_extensions;	3429	load_extensions;
		3430
		3431	utime time, time, $RUNTIMEFILE;
		3432
		3433	# no (long-running) fork's whatsoever before this point(!)
		3434	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3435
		3436	(pop @POST_INIT)->(0) while @POST_INIT;
		3437	};
		3438
2218	Event::loop;	3439	EV::loop;
2219	}	3440	}
2220		3441
2221	#############################################################################	3442	#############################################################################
2222	# initialisation and cleanup	3443	# initialisation and cleanup
2223		3444
2224	# install some emergency cleanup handlers	3445	# install some emergency cleanup handlers
2225	BEGIN {	3446	BEGIN {
		3447	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3448	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3449	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3450	cf::cleanup "SIG$signal";
2232	},
2233	);	3451	};
		3452	}
		3453	}
		3454
		3455	sub write_runtime_sync {
		3456	# first touch the runtime file to show we are still running:
		3457	# the fsync below can take a very very long time.
		3458
		3459	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3460
		3461	my $guard = cf::lock_acquire "write_runtime";
		3462
		3463	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3464	or return;
		3465
		3466	my $value = $cf::RUNTIME + 90 + 10;
		3467	# 10 is the runtime save interval, for a monotonic clock
		3468	# 60 allows for the watchdog to kill the server.
		3469
		3470	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3471	and return;
		3472
		3473	# always fsync - this file is important
		3474	aio_fsync $fh
		3475	and return;
		3476
		3477	# touch it again to show we are up-to-date
		3478	aio_utime $fh, undef, undef;
		3479
		3480	close $fh
		3481	or return;
		3482
		3483	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3484	and return;
		3485
		3486	warn "runtime file written.\n";
		3487
2234	}	3488	1
		3489	}
		3490
		3491	our $uuid_lock;
		3492	our $uuid_skip;
		3493
		3494	sub write_uuid_sync($) {
		3495	$uuid_skip ||= $_[0];
		3496
		3497	return if $uuid_lock;
		3498	local $uuid_lock = 1;
		3499
		3500	my $uuid = "$LOCALDIR/uuid";
		3501
		3502	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3503	or return;
		3504
		3505	my $value = uuid_seq uuid_cur;
		3506
		3507	unless ($value) {
		3508	warn "cowardly refusing to write zero uuid value!\n";
		3509	return;
		3510	}
		3511
		3512	my $value = uuid_str $value + $uuid_skip;
		3513	$uuid_skip = 0;
		3514
		3515	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3516	and return;
		3517
		3518	# always fsync - this file is important
		3519	aio_fsync $fh
		3520	and return;
		3521
		3522	close $fh
		3523	or return;
		3524
		3525	aio_rename "$uuid~", $uuid
		3526	and return;
		3527
		3528	warn "uuid file written ($value).\n";
		3529
		3530	1
		3531
		3532	}
		3533
		3534	sub write_uuid($$) {
		3535	my ($skip, $sync) = @_;
		3536
		3537	$sync ? write_uuid_sync $skip
		3538	: async { write_uuid_sync $skip };
2235	}	3539	}
2236		3540
2237	sub emergency_save() {	3541	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	3542	my $freeze_guard = cf::freeze_mainloop;
2239		3543
2240	warn "enter emergency perl save\n";	3544	warn "emergency_perl_save: enter\n";
2241		3545
2242	cf::sync_job {	3546	cf::sync_job {
		3547	# this is a trade-off: we want to be very quick here, so
		3548	# save all maps without fsync, and later call a global sync
		3549	# (which in turn might be very very slow)
		3550	local $USE_FSYNC = 0;
		3551
2243	# use a peculiar iteration method to avoid tripping on perl	3552	# use a peculiar iteration method to avoid tripping on perl
2244	# refcount bugs in for. also avoids problems with players	3553	# refcount bugs in for. also avoids problems with players
2245	# and maps saved/destroyed asynchronously.	3554	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	3555	warn "emergency_perl_save: begin player save\n";
2247	for my $login (keys %cf::PLAYER) {	3556	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	3557	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	3558	$pl->valid or next;
		3559	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	3560	$pl->save;
2251	}	3561	}
2252	warn "end emergency player save\n";	3562	warn "emergency_perl_save: end player save\n";
2253		3563
2254	warn "begin emergency map save\n";	3564	warn "emergency_perl_save: begin map save\n";
2255	for my $path (keys %cf::MAP) {	3565	for my $path (keys %cf::MAP) {
2256	my $map = $cf::MAP{$path} or next;	3566	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	3567	$map->valid or next;
2258	$map->save;	3568	$map->save;
2259	}	3569	}
2260	warn "end emergency map save\n";	3570	warn "emergency_perl_save: end map save\n";
		3571
		3572	warn "emergency_perl_save: begin database checkpoint\n";
		3573	BDB::db_env_txn_checkpoint $DB_ENV;
		3574	warn "emergency_perl_save: end database checkpoint\n";
		3575
		3576	warn "emergency_perl_save: begin write uuid\n";
		3577	write_uuid_sync 1;
		3578	warn "emergency_perl_save: end write uuid\n";
2261	};	3579	};
2262		3580
		3581	warn "emergency_perl_save: starting sync()\n";
		3582	IO::AIO::aio_sync sub {
		3583	warn "emergency_perl_save: finished sync()\n";
		3584	};
		3585
2263	warn "leave emergency perl save\n";	3586	warn "emergency_perl_save: leave\n";
2264	}	3587	}
2265		3588
		3589	sub post_cleanup {
		3590	my ($make_core) = @_;
		3591
		3592	warn Carp::longmess "post_cleanup backtrace"
		3593	if $make_core;
		3594
		3595	my $fh = pidfile;
		3596	unlink $PIDFILE if <$fh> == $$;
		3597	}
		3598
		3599	# a safer delete_package, copied from Symbol
		3600	sub clear_package($) {
		3601	my $pkg = shift;
		3602
		3603	# expand to full symbol table name if needed
		3604	unless ($pkg =~ /^main::.*::$/) {
		3605	$pkg = "main$pkg" if $pkg =~ /^::/;
		3606	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3607	$pkg .= '::' unless $pkg =~ /::$/;
		3608	}
		3609
		3610	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3611	my $stem_symtab = *{$stem}{HASH};
		3612
		3613	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3614	or return;
		3615
		3616	# clear all symbols
		3617	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3618	for my $name (keys %$leaf_symtab) {
		3619	_gv_clear *{"$pkg$name"};
		3620	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3621	}
		3622	warn "cleared package $pkg\n";#d#
		3623	}
		3624
2266	sub reload() {	3625	sub do_reload_perl() {
2267	# can/must only be called in main	3626	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	3627	if ($Coro::current != $Coro::main) {
2269	warn "can only reload from main coroutine\n";	3628	warn "can only reload from main coroutine";
2270	return;	3629	return;
2271	}	3630	}
2272		3631
		3632	return if $RELOAD++;
		3633
		3634	my $t1 = EV::time;
		3635
		3636	while ($RELOAD) {
2273	warn "reloading...";	3637	warn "reloading...";
2274		3638
2275	warn "freezing server";	3639	warn "entering sync_job";
2276	my $guard = freeze_mainloop;	3640
		3641	cf::sync_job {
		3642	cf::write_runtime_sync; # external watchdog should not bark
2277	cf::emergency_save;	3643	cf::emergency_save;
		3644	cf::write_runtime_sync; # external watchdog should not bark
2278		3645
2279	warn "sync database to disk";	3646	warn "syncing database to disk";
2280	cf::db_sync;	3647	BDB::db_env_txn_checkpoint $DB_ENV;
2281	IO::AIO::flush;
2282		3648
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved	3649	# if anything goes wrong in here, we should simply crash as we already saved
2285		3650
2286	warn "cancel all watchers";	3651	warn "flushing outstanding aio requests";
2287	for (Event::all_watchers) {	3652	while (IO::AIO::nreqs || BDB::nreqs) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;	3653	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2289	}
2290
2291	warn "cancel all extension coros";
2292	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();
2294
2295	warn "remove commands";
2296	%COMMAND = ();
2297
2298	warn "remove ext commands";
2299	%EXTCMD = ();
2300
2301	warn "unload/nuke all extensions";
2302	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";
2304
2305	if (my $cb = $pkg->can ("unload")) {
2306	eval {
2307	$cb->($pkg);
2308	1
2309	} or warn "$pkg unloaded, but with errors: $@";
2310	}	3654	}
2311		3655
		3656	warn "cancelling all extension coros";
		3657	$_->cancel for values %EXT_CORO;
		3658	%EXT_CORO = ();
		3659
		3660	warn "removing commands";
		3661	%COMMAND = ();
		3662
		3663	warn "removing ext/exti commands";
		3664	%EXTCMD = ();
		3665	%EXTICMD = ();
		3666
		3667	warn "unloading/nuking all extensions";
		3668	for my $pkg (@EXTS) {
2312	warn "... nuking $pkg";	3669	warn "... unloading $pkg";
2313	Symbol::delete_package $pkg;
2314	}
2315		3670
2316	warn "unload all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319
2320	warn "removing <$k>";
2321	delete $INC{$k};
2322
2323	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;
2325
2326	if (my $cb = $k->can ("unload_module")) {	3671	if (my $cb = $pkg->can ("unload")) {
		3672	eval {
2327	$cb->();	3673	$cb->($pkg);
		3674	1
		3675	} or warn "$pkg unloaded, but with errors: $@";
		3676	}
		3677
		3678	warn "... clearing $pkg";
		3679	clear_package $pkg;
2328	}	3680	}
2329		3681
2330	Symbol::delete_package $k;	3682	warn "unloading all perl modules loaded from $LIBDIR";
		3683	while (my ($k, $v) = each %INC) {
		3684	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3685
		3686	warn "... unloading $k";
		3687	delete $INC{$k};
		3688
		3689	$k =~ s/\.pm$//;
		3690	$k =~ s/\//::/g;
		3691
		3692	if (my $cb = $k->can ("unload_module")) {
		3693	$cb->();
		3694	}
		3695
		3696	clear_package $k;
2331	}	3697	}
2332		3698
2333	warn "get rid of safe::, as good as possible";	3699	warn "getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	3700	clear_package "safe::$_"
2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336		3702
2337	warn "unload cf.pm \"a bit\"";	3703	warn "unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	3704	delete $INC{"cf.pm"};
		3705	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2339		3706
2340	# don't, removes xs symbols, too,	3707	# don't, removes xs symbols, too,
2341	# and global variables created in xs	3708	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	3709	#clear_package __PACKAGE__;
2343		3710
		3711	warn "unload completed, starting to reload now";
		3712
2344	warn "reloading cf.pm";	3713	warn "reloading cf.pm";
2345	require cf;	3714	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347		3716
2348	warn "load config and database again";	3717	warn "loading config and database again";
2349	cf::cfg_load;	3718	cf::reload_config;
2350	cf::db_load;
2351		3719
2352	warn "load extensions";	3720	warn "loading extensions";
2353	cf::load_extensions;	3721	cf::load_extensions;
2354		3722
		3723	if ($REATTACH_ON_RELOAD) {
2355	warn "reattach attachments to objects/players";	3724	warn "reattaching attachments to objects/players";
2356	_global_reattach;	3725	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	3726	warn "reattaching attachments to maps";
2358	reattach $_ for values %MAP;	3727	reattach $_ for values %MAP;
		3728	warn "reattaching attachments to players";
		3729	reattach $_ for values %PLAYER;
		3730	}
		3731
		3732	warn "running post_init jobs";
		3733	(pop @POST_INIT)->(1) while @POST_INIT;
		3734
		3735	warn "leaving sync_job";
		3736
		3737	1
		3738	} or do {
		3739	warn $@;
		3740	cf::cleanup "error while reloading, exiting.";
		3741	};
		3742
		3743	warn "reloaded";
		3744	--$RELOAD;
		3745	}
		3746
		3747	$t1 = EV::time - $t1;
		3748	warn "reload completed in ${t1}s\n";
		3749	};
		3750
		3751	our $RELOAD_WATCHER; # used only during reload
		3752
		3753	sub reload_perl() {
		3754	# doing reload synchronously and two reloads happen back-to-back,
		3755	# coro crashes during coro_state_free->destroy here.
		3756
		3757	$RELOAD_WATCHER ||= cf::async {
		3758	Coro::AIO::aio_wait cache_extensions;
		3759
		3760	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3761	do_reload_perl;
		3762	undef $RELOAD_WATCHER;
		3763	};
2359	};	3764	};
2360		3765	}
2361	if ($@) {
2362	warn $@;
2363	warn "error while reloading, exiting.";
2364	exit 1;
2365	}
2366
2367	warn "reloaded";
2368	};
2369		3766
2370	register_command "reload" => sub {	3767	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	3768	my ($who, $arg) = @_;
2372		3769
2373	if ($who->flag (FLAG_WIZ)) {	3770	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	3771	$who->message ("reloading server.");
		3772	async {
		3773	$Coro::current->{desc} = "perl_reload";
		3774	reload_perl;
		3775	};
2377	}	3776	}
2378	};	3777	};
2379		3778
2380	unshift @INC, $LIBDIR;	3779	unshift @INC, $LIBDIR;
2381		3780
2382	$TICK_WATCHER = Event->timer (	3781	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		3782
		3783	our @WAIT_FOR_TICK;
		3784	our @WAIT_FOR_TICK_BEGIN;
		3785
		3786	sub wait_for_tick {
		3787	return if tick_inhibit || $Coro::current == $Coro::main;
		3788
		3789	my $signal = new Coro::Signal;
		3790	push @WAIT_FOR_TICK, $signal;
		3791	$signal->wait;
		3792	}
		3793
		3794	sub wait_for_tick_begin {
		3795	return if tick_inhibit || $Coro::current == $Coro::main;
		3796
		3797	my $signal = new Coro::Signal;
		3798	push @WAIT_FOR_TICK_BEGIN, $signal;
		3799	$signal->wait;
		3800	}
		3801
		3802	sub tick {
		3803	if ($Coro::current != $Coro::main) {
		3804	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3805	unless ++$bug_warning > 10;
		3806	return;
		3807	}
		3808
2390	cf::server_tick; # one server iteration	3809	cf::server_tick; # one server iteration
2391	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;
2393		3810
2394	$WAIT_FOR_TICK->broadcast;	3811	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3812	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2396		3813	Coro::async_pool {
2397	# if we are delayed by four ticks or more, skip them all	3814	$Coro::current->{desc} = "runtime saver";
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2399
2400	$TICK_WATCHER->at ($NEXT_TICK);
2401	$TICK_WATCHER->start;
2402	},
2403	);
2404
2405	IO::AIO::max_poll_time $TICK * 0.2;
2406
2407	Event->io (
2408	fd => IO::AIO::poll_fileno,
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,
2417	after => 0,
2418	interval => 10,
2419	cb => sub {
2420	(Coro::unblock_sub {
2421	write_runtime	3815	write_runtime_sync
2422	or warn "ERROR: unable to write runtime file: $!";	3816	or warn "ERROR: unable to write runtime file: $!";
2423	})->();	3817	};
2424	},	3818	}
2425	);	3819
		3820	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3821	$sig->send;
		3822	}
		3823	while (my $sig = shift @WAIT_FOR_TICK) {
		3824	$sig->send;
		3825	}
		3826
		3827	$LOAD = ($NOW - $TICK_START) / $TICK;
		3828	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3829
		3830	if (0) {
		3831	if ($NEXT_TICK) {
		3832	my $jitter = $TICK_START - $NEXT_TICK;
		3833	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3834	warn "jitter $JITTER\n";#d#
		3835	}
		3836	}
		3837	}
		3838
		3839	{
		3840	# configure BDB
		3841
		3842	BDB::min_parallel 8;
		3843	BDB::max_poll_reqs $TICK * 0.1;
		3844	$AnyEvent::BDB::WATCHER->priority (1);
		3845
		3846	unless ($DB_ENV) {
		3847	$DB_ENV = BDB::db_env_create;
		3848	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3849	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3850	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3851	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3852	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3853
		3854	cf::sync_job {
		3855	eval {
		3856	BDB::db_env_open
		3857	$DB_ENV,
		3858	$BDBDIR,
		3859	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3860	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3861	0666;
		3862
		3863	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3864	};
		3865
		3866	cf::cleanup "db_env_open(db): $@" if $@;
		3867	};
		3868	}
		3869
		3870	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3871	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3872	};
		3873	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3874	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3875	};
		3876	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3877	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3878	};
		3879	}
		3880
		3881	{
		3882	# configure IO::AIO
		3883
		3884	IO::AIO::min_parallel 8;
		3885	IO::AIO::max_poll_time $TICK * 0.1;
		3886	undef $AnyEvent::AIO::WATCHER;
		3887	}
		3888
		3889	my $_log_backtrace;
		3890
		3891	sub _log_backtrace {
		3892	my ($msg, @addr) = @_;
		3893
		3894	$msg =~ s/\n//;
		3895
		3896	# limit the # of concurrent backtraces
		3897	if ($_log_backtrace < 2) {
		3898	++$_log_backtrace;
		3899	my $perl_bt = Carp::longmess $msg;
		3900	async {
		3901	$Coro::current->{desc} = "abt $msg";
		3902
		3903	my @bt = fork_call {
		3904	@addr = map { sprintf "%x", $_ } @addr;
		3905	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3906	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3907	or die "addr2line: $!";
		3908
		3909	my @funcs;
		3910	my @res = <$fh>;
		3911	chomp for @res;
		3912	while (@res) {
		3913	my ($func, $line) = splice @res, 0, 2, ();
		3914	push @funcs, "[$func] $line";
		3915	}
		3916
		3917	@funcs
		3918	};
		3919
		3920	LOG llevInfo, "[ABT] $perl_bt\n";
		3921	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3922	LOG llevInfo, "[ABT] $_\n" for @bt;
		3923	--$_log_backtrace;
		3924	};
		3925	} else {
		3926	LOG llevInfo, "[ABT] $msg\n";
		3927	LOG llevInfo, "[ABT] [suppressed]\n";
		3928	}
		3929	}
		3930
		3931	# load additional modules
		3932	require "cf/$_.pm" for @EXTRA_MODULES;
2426		3933
2427	END { cf::emergency_save }	3934	END { cf::emergency_save }
2428		3935
2429	1	3936	1
2430		3937

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