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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.208 by root, Mon Feb 12 00:27:20 2007 UTC vs.
Revision 1.470 by root, Sun Apr 26 19:42:45 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 3.5 ();	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 ();
20	use BDB ();	54	use BDB ();
21	use Data::Dumper;	55	use Data::Dumper;
22	use Digest::MD5;	56	use Digest::MD5;
23	use Fcntl;	57	use Fcntl;
		58	use YAML ();
24	use IO::AIO 2.32 ();	59	use IO::AIO ();
25	use YAML::Syck ();
26	use Time::HiRes;	60	use Time::HiRes;
27	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
28		63
		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";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		76
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		78
40	our %COMMAND = ();	79	our %COMMAND = ();
41	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
42		81
43	our @EXTS = (); # list of extension package names	82	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	85	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	86	our %EXT_MAP = (); # pluggable maps
47		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	89	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		90
51	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	92	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	93	our $LIBDIR = "$DATADIR/ext";
54	our $WRITE_RUNTIME_WATCHER;	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
55	our $NEXT_TICK;	109	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	110	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	114	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
61		118
62	our %CFG;	119	our %CFG;
63		120
64	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
66		124
67	our %PLAYER; # all users	125	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	126	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	127	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		128
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
		140
79	binmode STDOUT;	141	binmode STDOUT;
80	binmode STDERR;	142	binmode STDERR;
81		143
82	# read virtual server time, if available	144	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
87	}	149	}
88		150
89	mkdir cf::localdir;	151	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	152
91	mkdir cf::localdir . "/" . cf::tmpdir;	153	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	154	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		155
96	our $EMERGENCY_POSITION;	156	our $EMERGENCY_POSITION;
97		157
98	sub cf::map::normalise;	158	sub cf::map::normalise;
99		159
…		…
110	=item $cf::RUNTIME	170	=item $cf::RUNTIME
111		171
112	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
113	every server tick.	173	every server tick.
114		174
115	=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
116		178
117	The perl library directory, where extensions and cf-specific modules can	179	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		183
120	=item $cf::NOW	184	=item $cf::NOW
121		185
122	The time of the last (current) server tick.	186	The time of the last (current) server tick.
123		187
124	=item $cf::TICK	188	=item $cf::TICK
125		189
126	The interval between server ticks, in seconds.	190	The interval between server ticks, in seconds.
127		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
128	=item %cf::CFG	202	=item %cf::CFG
129		203
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	204	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	205	from wherever your confdir points to.
132		206
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	207	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		208
135	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
136	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
137	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.
138	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.
139		218
140	=back	219	=back
141		220
142	=cut	221	=cut
143		222
144	BEGIN {	223	BEGIN {
145	*CORE::GLOBAL::warn = sub {	224	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	225	my $msg = join "", @_;
147	utf8::encode $msg;
148		226
149	$msg .= "\n"	227	$msg .= "\n"
150	unless $msg =~ /\n$/;	228	unless $msg =~ /\n$/;
151		229
		230	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		231
152	LOG llevError, $msg;	232	LOG llevError, $msg;
153	};	233	};
154	}	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#?
155		250
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	251	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	252	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	253	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	254	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		258
163	# 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
164	# within the Safe compartment.	260	# within the Safe compartment.
165	for my $pkg (qw(	261	for my $pkg (qw(
166	cf::global cf::attachable	262	cf::global cf::attachable
167	cf::object cf::object::player	263	cf::object cf::object::player
168	cf::client cf::player	264	cf::client cf::player
169	cf::arch cf::living	265	cf::arch cf::living
		266	cf::map cf::mapspace
170	cf::map cf::party cf::region	267	cf::party cf::region
171	)) {	268	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	269	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	270	}
175		271
176	$Event::DIED = sub {	272	$EV::DIED = sub {
177	warn "error in event callback: @_";	273	warn "error in event callback: @_";
178	};	274	};
		275
		276	#############################################################################
179		277
180	=head2 UTILITY FUNCTIONS	278	=head2 UTILITY FUNCTIONS
181		279
182	=over 4	280	=over 4
183		281
…		…
202	$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;
203	$d	301	$d
204	} || "[unable to dump $_[0]: '$@']";	302	} || "[unable to dump $_[0]: '$@']";
205	}	303	}
206		304
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	305	=item $ref = cf::decode_json $json
210		306
211	Converts a JSON string into the corresponding perl data structure.	307	Converts a JSON string into the corresponding perl data structure.
212		308
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	309	=item $json = cf::encode_json $ref
221		310
222	Converts a perl data structure into its JSON representation.	311	Converts a perl data structure into its JSON representation.
223		312
224	=cut	313	=cut
225		314
226	sub to_json($) {	315	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	316
228	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;
229	}	332	}
230		333
231	=item cf::lock_wait $string	334	=item cf::lock_wait $string
232		335
233	Wait until the given lock is available. See cf::lock_acquire.	336	Wait until the given lock is available. See cf::lock_acquire.
234		337
235	=item my $lock = cf::lock_acquire $string	338	=item my $lock = cf::lock_acquire $string
236		339
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	342	for example when the coroutine gets canceled), the lock is automatically
240	returned.	343	returned.
241		344
		345	Locks are *not* recursive, locking from the same coro twice results in a
		346	deadlocked coro.
		347
242	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
243	uses map_find and cf::map::load uses map_load).	349	uses map_find and cf::map::load uses map_load).
244		350
245	=cut	351	=item $locked = cf::lock_active $string
246		352
247	our %LOCK;	353	Return true if the lock is currently active, i.e. somebody has locked it.
		354
		355	=cut
		356
		357	our $LOCKS = new Coro::SemaphoreSet;
248		358
249	sub lock_wait($) {	359	sub lock_wait($) {
250	my ($key) = @_;	360	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	361	}
258		362
259	sub lock_acquire($) {	363	sub lock_acquire($) {
260	my ($key) = @_;	364	$LOCKS->guard ($_[0])
		365	}
261		366
262	# wait, to be sure we are not locked	367	sub lock_active($) {
263	lock_wait $key;	368	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	369	}
272		370
273	sub freeze_mainloop {	371	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	372	tick_inhibit_inc;
275		373
276	my $guard = Coro::guard {	374	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	375	}
278	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		385	my ($interval, $cb) = @_;
		386
		387	my $start = rand List::Util::min 180, $interval;
		388
		389	EV::periodic $start, $interval, 0, $cb
		390	}
		391
		392	=item cf::get_slot $time[, $priority[, $name]]
		393
		394	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		395	This call blocks and returns only when you have at least C<$time> seconds
		396	of cpu time till the next tick. The slot is only valid till the next cede.
		397
		398	The optional C<$name> can be used to identify the job to run. It might be
		399	used for statistical purposes and should identify the same time-class.
		400
		401	Useful for short background jobs.
		402
		403	=cut
		404
		405	our @SLOT_QUEUE;
		406	our $SLOT_QUEUE;
		407
		408	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		409	$SLOT_QUEUE = Coro::async {
		410	$Coro::current->desc ("timeslot manager");
		411
		412	my $signal = new Coro::Signal;
		413
		414	while () {
		415	next_job:
		416	my $avail = cf::till_tick;
		417	if ($avail > 0.01) {
		418	for (0 .. $#SLOT_QUEUE) {
		419	if ($SLOT_QUEUE[$_][0] < $avail) {
		420	my $job = splice @SLOT_QUEUE, $_, 1, ();
		421	$job->[2]->send;
		422	Coro::cede;
		423	goto next_job;
		424	}
		425	}
		426	}
		427
		428	if (@SLOT_QUEUE) {
		429	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		430	push @cf::WAIT_FOR_TICK, $signal;
		431	$signal->wait;
		432	} else {
		433	Coro::schedule;
		434	}
279	};	435	}
280	$WRITE_RUNTIME_WATCHER->stop;	436	};
281	$TICK_WATCHER->stop;	437
282	$guard	438	sub get_slot($;$$) {
		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	$sig->wait;
283	}	450	}
284		451
285	=item cf::async { BLOCK }	452	=item cf::async { BLOCK }
286		453
287	Currently the same as Coro::async_pool, meaning you cannot use	454	Currently the same as Coro::async_pool, meaning you cannot use
…		…
292		459
293	BEGIN { *async = \&Coro::async_pool }	460	BEGIN { *async = \&Coro::async_pool }
294		461
295	=item cf::sync_job { BLOCK }	462	=item cf::sync_job { BLOCK }
296		463
297	The design of crossfire+ requires that the main coro ($Coro::main) is	464	The design of Deliantra requires that the main coroutine ($Coro::main)
298	always able to handle events or runnable, as crossfire+ is only partly	465	is always able to handle events or runnable, as Deliantra is only
299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	466	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		467	acceptable.
300		468
301	If it must be done, put the blocking parts into C<sync_job>. This will run	469	If it must be done, put the blocking parts into C<sync_job>. This will run
302	the given BLOCK in another coroutine while waiting for the result. The	470	the given BLOCK in another coroutine while waiting for the result. The
303	server will be frozen during this time, so the block should either finish	471	server will be frozen during this time, so the block should either finish
304	fast or be very important.	472	fast or be very important.
…		…
307		475
308	sub sync_job(&) {	476	sub sync_job(&) {
309	my ($job) = @_;	477	my ($job) = @_;
310		478
311	if ($Coro::current == $Coro::main) {	479	if ($Coro::current == $Coro::main) {
		480	my $time = EV::time;
		481
312	# this is the main coro, too bad, we have to block	482	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	483	# till the operation succeeds, freezing the server :/
314		484
315	# TODO: use suspend/resume instead	485	LOG llevError, Carp::longmess "sync job";#d#
316	# (but this is cancel-safe)	486
317	my $freeze_guard = freeze_mainloop;	487	my $freeze_guard = freeze_mainloop;
318		488
319	my $busy = 1;	489	my $busy = 1;
320	my @res;	490	my @res;
321		491
322	(async {	492	(async {
		493	$Coro::current->desc ("sync job coro");
323	@res = eval { $job->() };	494	@res = eval { $job->() };
324	warn $@ if $@;	495	warn $@ if $@;
325	undef $busy;	496	undef $busy;
326	})->prio (Coro::PRIO_MAX);	497	})->prio (Coro::PRIO_MAX);
327		498
328	while ($busy) {	499	while ($busy) {
329	Coro::cede or Event::one_event;	500	if (Coro::nready) {
		501	Coro::cede_notself;
		502	} else {
		503	EV::loop EV::LOOP_ONESHOT;
330	}	504	}
		505	}
		506
		507	my $time = EV::time - $time;
		508
		509	$TICK_START += $time; # do not account sync jobs to server load
331		510
332	wantarray ? @res : $res[0]	511	wantarray ? @res : $res[0]
333	} else {	512	} else {
334	# we are in another coroutine, how wonderful, everything just works	513	# we are in another coroutine, how wonderful, everything just works
335		514
…		…
355	$EXT_CORO{$coro+0} = $coro;	534	$EXT_CORO{$coro+0} = $coro;
356		535
357	$coro	536	$coro
358	}	537	}
359		538
360	sub write_runtime {	539	=item fork_call { }, $args
361	my $runtime = cf::localdir . "/runtime";
362		540
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	541	Executes the given code block with the given arguments in a seperate
364	or return;	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.
365		545
366	my $value = $cf::RUNTIME + 90 + 10;	546	=cut
367	# 10 is the runtime save interval, for a monotonic clock
368	# 60 allows for the watchdog to kill the server.
369		547
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	548	sub fork_call(&@) {
371	and return;	549	my ($cb, @args) = @_;
372		550
373	# always fsync - this file is important	551	# we seemingly have to make a local copy of the whole thing,
374	aio_fsync $fh	552	# otherwise perl prematurely frees the stuff :/
375	and return;	553	# TODO: investigate and fix (likely this will be rather laborious)
376		554
377	close $fh	555	my @res = Coro::Util::fork_eval {
378	or return;	556	reset_signals;
		557	&$cb
		558	}, @args;
379		559
380	aio_rename "$runtime~", $runtime	560	wantarray ? @res : $res[-1]
381	and return;	561	}
382		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($$) {
		632	my $key = "$_[0]/$_[1]";
		633
		634	cf::sync_job {
		635	BDB::db_get $DB, undef, $key, my $data;
		636
		637	$! ? ()
		638	: $data
383	1	639	}
		640	}
		641
		642	sub db_put($$$) {
		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 });
384	}	726	}
385		727
386	=back	728	=back
387		729
388	=cut	730	=cut
389		731
390	#############################################################################	732	#############################################################################
391		733
392	=head2 ATTACHABLE OBJECTS	734	=head2 ATTACHABLE OBJECTS
393		735
394	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
395	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")
396	to it. All such attachable objects support the following methods.	738	to it. All such attachable objects support the following methods.
397		739
398	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>
399	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
400	crossfire+).	742	Deliantra).
401		743
402	=over 4	744	=over 4
403		745
404	=item $attachable->attach ($attachment, key => $value...)	746	=item $attachable->attach ($attachment, key => $value...)
405		747
…		…
449	=item cf::CLASS::attachment $name, ...	791	=item cf::CLASS::attachment $name, ...
450		792
451	Register an attachment by C<$name> through which attachable objects of the	793	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	794	given CLASS can refer to this attachment.
453		795
454	Some classes such as crossfire maps and objects can specify attachments	796	Some classes such as deliantra maps and objects can specify attachments
455	that are attached at load/instantiate time, thus the need for a name.	797	that are attached at load/instantiate time, thus the need for a name.
456		798
457	These calls expect any number of the following handler/hook descriptions:	799	These calls expect any number of the following handler/hook descriptions:
458		800
459	=over 4	801	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	910	$registry = $CB_TYPE[$object_type] ||= [];
569		911
570	} elsif ($type eq "subtype") {	912	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	913	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	914	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	915	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		916
575	} elsif ($type eq "package") {	917	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	918	my $pkg = shift @arg;
577		919
578	while (my ($name, $id) = each %cb_id) {	920	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	949	_attach $registry, $klass, @attach;
608	}	950	}
609		951
610	$obj->{$name} = \%arg;	952	$obj->{$name} = \%arg;
611	} else {	953	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	954	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	955	}
614		956
615	$obj->{_attachment}{$name} = undef;	957	$obj->{_attachment}{$name} = undef;
616	}	958	}
617		959
…		…
619	if (ref $_[0]) {	961	if (ref $_[0]) {
620	_object_attach @_;	962	_object_attach @_;
621	} else {	963	} else {
622	_attach shift->_attach_registry, @_;	964	_attach shift->_attach_registry, @_;
623	}	965	}
		966	_recalc_want;
624	};	967	};
625		968
626	# all those should be optimised	969	# all those should be optimised
627	sub cf::attachable::detach {	970	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	971	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	974	delete $obj->{_attachment}{$name};
632	reattach ($obj);	975	reattach ($obj);
633	} else {	976	} else {
634	Carp::croak "cannot, currently, detach class attachments";	977	Carp::croak "cannot, currently, detach class attachments";
635	}	978	}
		979	_recalc_want;
636	};	980	};
637		981
638	sub cf::attachable::attached {	982	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	983	my ($obj, $name) = @_;
640		984
…		…
655	";	999	";
656	die if $@;	1000	die if $@;
657	}	1001	}
658		1002
659	our $override;	1003	our $override;
660	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?
661		1005
662	sub override {	1006	sub override {
663	$override = 1;	1007	$override = 1;
664	@invoke_results = ();	1008	@INVOKE_RESULTS = (@_);
665	}	1009	}
666		1010
667	sub do_invoke {	1011	sub do_invoke {
668	my $event = shift;	1012	my $event = shift;
669	my $callbacks = shift;	1013	my $callbacks = shift;
670		1014
671	@invoke_results = ();	1015	@INVOKE_RESULTS = ();
672		1016
673	local $override;	1017	local $override;
674		1018
675	for (@$callbacks) {	1019	for (@$callbacks) {
676	eval { &{$_->[1]} };	1020	eval { &{$_->[1]} };
…		…
685	}	1029	}
686		1030
687	0	1031	0
688	}	1032	}
689		1033
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1035
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1037
694	Generate an object-specific event with the given arguments.	1038	Generate an object-specific event with the given arguments.
695		1039
696	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
697	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
698	results (if you must, access C<@cf::invoke_results> directly).	1042	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1043
700	=back	1044	=back
701		1045
702	=cut	1046	=cut
703		1047
704	#############################################################################	1048	#############################################################################
705	# 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, $ob2
		1091	}
706		1092
707	sub reattach {	1093	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1094	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1095	my ($obj) = @_;
710		1096
		1097	# no longer needed after getting rid of delete_package?
711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1098	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
712		1099
713	my $registry = $obj->registry;	1100	my $registry = $obj->registry;
714		1101
715	@$registry = ();	1102	@$registry = ();
716		1103
…		…
731	cf::attachable->attach (	1118	cf::attachable->attach (
732	prio => -1000000,	1119	prio => -1000000,
733	on_instantiate => sub {	1120	on_instantiate => sub {
734	my ($obj, $data) = @_;	1121	my ($obj, $data) = @_;
735		1122
736	$data = from_json $data;	1123	$data = decode_json $data;
737		1124
738	for (@$data) {	1125	for (@$data) {
739	my ($name, $args) = @$_;	1126	my ($name, $args) = @$_;
740		1127
741	$obj->attach ($name, %{$args || {} });	1128	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1144	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1145	my ($filename, $rdata, $objs) = @_;
759		1146
760	sync_job {	1147	sync_job {
761	if (length $$rdata) {	1148	if (length $$rdata) {
		1149	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1150	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1151	$decname, length $$rdata, scalar @$objs;
764		1152
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1153	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1154	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1155	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1156	aio_fsync $fh if $cf::USE_FSYNC;
769	close $fh;	1157	aio_close $fh;
770		1158
771	if (@$objs) {	1159	if (@$objs) {
772	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) {
773	chmod SAVE_MODE, $fh;	1161	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1162	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1163	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1164	aio_fsync $fh if $cf::USE_FSYNC;
777	close $fh;	1165	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1166	aio_rename "$filename.pst~", "$filename.pst";
779	}	1167	}
780	} else {	1168	} else {
781	aio_unlink "$filename.pst";	1169	aio_unlink "$filename.pst";
782	}	1170	}
783		1171
784	aio_rename "$filename~", $filename;	1172	aio_rename "$filename~", $filename;
		1173
		1174	$filename =~ s%/[^/]+$%%;
		1175	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1176	} else {
786	warn "FATAL: $filename~: $!\n";	1177	warn "unable to save objects: $filename~: $!\n";
787	}	1178	}
788	} else {	1179	} else {
789	aio_unlink $filename;	1180	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
791	}	1182	}
792
793	#d##TODO# nuke non .map-files if exist
794	if ($filename =~ s/\.map$//) {
795	aio_unlink $filename;
796	aio_unlink "$filename.pst";
797	}
798	}	1183	};
799	}	1184	}
800		1185
801	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
802	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
803		1188
…		…
808		1193
809	sub object_thawer_load {	1194	sub object_thawer_load {
810	my ($filename) = @_;	1195	my ($filename) = @_;
811		1196
812	my ($data, $av);	1197	my ($data, $av);
813
814	#d#TODO remove .map if file does not exist
815	aio_stat $filename and $filename =~ s/\.map$//;
816		1198
817	(aio_load $filename, $data) >= 0	1199	(aio_load $filename, $data) >= 0
818	or return;	1200	or return;
819		1201
820	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
821	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
822	or return;	1204	or return;
		1205
823	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
824	}	1208	}
825		1209
		1210	utf8::decode (my $decname = $filename);
826	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
827	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
828	return ($data, $av);	1214	($data, $av)
829	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
830		1222
831	#############################################################################	1223	#############################################################################
832	# command handling &c	1224	# command handling &c
833		1225
834	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
847	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
848	}	1240	}
849		1241
850	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
851		1243
852	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.
853		1249
854	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
855	called.	1251	called.
856		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
857	=cut	1264	=cut
858		1265
859	sub register_extcmd {	1266	sub register_extcmd {
860	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
861		1268
862	$EXTCMD{$name} = $cb;	1269	$EXTCMD{$name} = $cb;
863	}	1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
		1276	}
		1277
		1278	use File::Glob ();
864		1279
865	cf::player->attach (	1280	cf::player->attach (
866	on_command => sub {	1281	on_command => sub {
867	my ($pl, $name, $params) = @_;	1282	my ($pl, $name, $params) = @_;
868		1283
…		…
876	cf::override;	1291	cf::override;
877	},	1292	},
878	on_extcmd => sub {	1293	on_extcmd => sub {
879	my ($pl, $buf) = @_;	1294	my ($pl, $buf) = @_;
880		1295
881	my $msg = eval { from_json $buf };	1296	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
882		1297
883	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
884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1306	if (my $cb = $EXTCMD{$type}) {
885	if (my %reply = $cb->($pl, $msg)) {	1307	@reply = $cb->($pl, @payload);
886	$pl->ext_reply ($msg->{msgid}, %reply);
887	}
888	}	1308	}
		1309
		1310	$pl->ext_reply ($reply, @reply)
		1311	if $reply;
		1312
889	} else {	1313	} else {
890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1314	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
891	}	1315	}
892		1316
893	cf::override;	1317	cf::override;
894	},	1318	},
895	);	1319	);
896		1320
		1321	# "readahead" all extensions
897	sub load_extension {	1322	sub cache_extensions {
898	my ($path) = @_;	1323	my $grp = IO::AIO::aio_group;
899		1324
900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1325	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
901	my $base = $1;	1326	for (grep /\.ext$/, @{$_[0]}) {
902	my $pkg = $1;	1327	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
903	$pkg =~ s/[^[:word:]]/_/g;
904	$pkg = "ext::$pkg";
905
906	warn "... loading '$path' into '$pkg'\n";
907
908	open my $fh, "<:utf8", $path
909	or die "$path: $!";
910
911	my $source =
912	"package $pkg; use strict; use utf8;\n"
913	. "#line 1 \"$path\"\n{\n"
914	. (do { local $/; <$fh> })
915	. "\n};\n1";
916
917	unless (eval $source) {
918	my $msg = $@ ? "$path: $@\n"
919	: "extension disabled.\n";
920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
921	warn $@;
922	warn "mandatory extension failed to load, exiting.\n";
923	exit 1;
924	}	1328	}
925	die $@;
926	}	1329	};
927		1330
928	push @EXTS, $pkg;	1331	$grp
929	}	1332	}
930		1333
931	sub load_extensions {	1334	sub load_extensions {
		1335	cf::sync_job {
		1336	my %todo;
		1337
932	for my $ext (<$LIBDIR/*.ext>) {	1338	for my $path (<$LIBDIR/*.ext>) {
933	next unless -r $ext;	1339	next unless -r $path;
934	eval {	1340
935	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	$progress = 1;
936	1	1397	}
937	} or warn "$ext not loaded: $@";	1398
		1399	skip:
		1400	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1401	unless $progress;
		1402	}
938	}	1403	};
939	}	1404	}
940		1405
941	#############################################################################	1406	#############################################################################
942		1407
		1408	=back
		1409
943	=head2 CORE EXTENSIONS	1410	=head2 CORE EXTENSIONS
944		1411
945	Functions and methods that extend core crossfire objects.	1412	Functions and methods that extend core deliantra objects.
946		1413
947	=cut	1414	=cut
948		1415
949	package cf::player;	1416	package cf::player;
950		1417
…		…
952		1419
953	=head3 cf::player	1420	=head3 cf::player
954		1421
955	=over 4	1422	=over 4
956		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
957	=item cf::player::find $login	1438	=item cf::player::find $login
958		1439
959	Returns the given player object, loading it if necessary (might block).	1440	Returns the given player object, loading it if necessary (might block).
960		1441
961	=cut	1442	=cut
962		1443
963	sub playerdir($) {	1444	sub playerdir($) {
964	cf::localdir	1445	"$PLAYERDIR/"
965	. "/"
966	. cf::playerdir
967	. "/"
968	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1446	. (ref $_[0] ? $_[0]->ob->name : $_[0])
969	}	1447	}
970		1448
971	sub path($) {	1449	sub path($) {
972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1450	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973		1451
974	(playerdir $login) . "/$login.pl"	1452	(playerdir $login) . "/playerdata"
975	}	1453	}
976		1454
977	sub find_active($) {	1455	sub find_active($) {
978	$cf::PLAYER{$_[0]}	1456	$cf::PLAYER{$_[0]}
979	and $cf::PLAYER{$_[0]}->active	1457	and $cf::PLAYER{$_[0]}->active
…		…
982		1460
983	sub exists($) {	1461	sub exists($) {
984	my ($login) = @_;	1462	my ($login) = @_;
985		1463
986	$cf::PLAYER{$login}	1464	$cf::PLAYER{$login}
987	or cf::sync_job { !aio_stat path $login }	1465	or !aio_stat path $login
988	}	1466	}
989		1467
990	sub find($) {	1468	sub find($) {
991	return $cf::PLAYER{$_[0]} || do {	1469	return $cf::PLAYER{$_[0]} || do {
992	my $login = $_[0];	1470	my $login = $_[0];
993		1471
994	my $guard = cf::lock_acquire "user_find:$login";	1472	my $guard = cf::lock_acquire "user_find:$login";
995		1473
996	$cf::PLAYER{$_[0]} || do {	1474	$cf::PLAYER{$_[0]} || do {
997	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
998	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;
999	$cf::PLAYER{$login} = $pl	1490	$cf::PLAYER{$login} = $pl
1000	}	1491	}
1001	}	1492	}
1002	}	1493	}
1003		1494
…		…
1012	return if $pl->{deny_save};	1503	return if $pl->{deny_save};
1013		1504
1014	aio_mkdir playerdir $pl, 0770;	1505	aio_mkdir playerdir $pl, 0770;
1015	$pl->{last_save} = $cf::RUNTIME;	1506	$pl->{last_save} = $cf::RUNTIME;
1016		1507
		1508	cf::get_slot 0.01;
		1509
1017	$pl->save_pl ($path);	1510	$pl->save_pl ($path);
1018	Coro::cede;	1511	cf::cede_to_tick;
1019	}	1512	}
1020		1513
1021	sub new($) {	1514	sub new($) {
1022	my ($login) = @_;	1515	my ($login) = @_;
1023		1516
…		…
1029	$cf::PLAYER{$login} = $self;	1522	$cf::PLAYER{$login} = $self;
1030		1523
1031	$self	1524	$self
1032	}	1525	}
1033		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
1034	=item $pl->quit_character	1537	=item $pl->quit_character
1035		1538
1036	Nukes the player without looking back. If logged in, the connection will	1539	Nukes the player without looking back. If logged in, the connection will
1037	be destroyed. May block for a long time.	1540	be destroyed. May block for a long time.
1038		1541
1039	=cut	1542	=cut
1040		1543
1041	sub quit_character {	1544	sub quit_character {
1042	my ($pl) = @_;	1545	my ($pl) = @_;
1043		1546
		1547	my $name = $pl->ob->name;
		1548
1044	$pl->{deny_save} = 1;	1549	$pl->{deny_save} = 1;
1045	$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
1046		1551
1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1552	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1048	$pl->deactivate;	1553	$pl->deactivate;
		1554	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1555	$pl->ob->check_score;
1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1556	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1050	$pl->ns->destroy if $pl->ns;	1557	$pl->ns->destroy if $pl->ns;
1051		1558
1052	my $path = playerdir $pl;	1559	my $path = playerdir $pl;
1053	my $temp = "$path~$cf::RUNTIME~deleting~";	1560	my $temp = "$path~$cf::RUNTIME~deleting~";
1054	aio_rename $path, $temp;	1561	aio_rename $path, $temp;
1055	delete $cf::PLAYER{$pl->ob->name};	1562	delete $cf::PLAYER{$pl->ob->name};
1056	$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
1057	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;
1058	}	1585	}
1059		1586
1060	=item cf::player::list_logins	1587	=item cf::player::list_logins
1061		1588
1062	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
1063	while and may block, so not sync_job-capable, ever.	1590	while and may block, so not sync_job-capable, ever.
1064		1591
1065	=cut	1592	=cut
1066		1593
1067	sub list_logins {	1594	sub list_logins {
1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1595	my $dirs = aio_readdir $PLAYERDIR
1069	or return [];	1596	or return [];
1070		1597
1071	my @logins;	1598	my @logins;
1072		1599
1073	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") {
1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1606	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1075	aio_read $fh, 0, 512, my $buf, 0 or next;	1607	aio_read $fh, 0, 512, my $buf, 0 or next;
1076	$buf !~ /^password -------------$/m or next; # official not-valid tag	1608	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1609	}
1077		1610
1078	utf8::decode $login;	1611	utf8::decode $login;
1079	push @logins, $login;	1612	push @logins, $login;
1080	}	1613	}
1081		1614
…		…
1108	}	1641	}
1109		1642
1110	\@paths	1643	\@paths
1111	}	1644	}
1112		1645
		1646	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1647
		1648	Expand deliantra pod fragments into protocol xml.
		1649
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1650	=item $player->ext_reply ($msgid, @msg)
1114		1651
1115	Sends an ext reply to the player.	1652	Sends an ext reply to the player.
1116		1653
1117	=cut	1654	=cut
1118		1655
1119	sub ext_reply($$$%) {	1656	sub ext_reply($$@) {
1120	my ($self, $id, %msg) = @_;	1657	my ($self, $id, @msg) = @_;
1121		1658
1122	$msg{msgid} = $id;	1659	$self->ns->ext_reply ($id, @msg)
1123
1124	$self->send ("ext " . cf::to_json \%msg);
1125	}	1660	}
1126		1661
1127	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	}
1128		1702
1129	=back	1703	=back
1130
1131		1704
1132	=head3 cf::map	1705	=head3 cf::map
1133		1706
1134	=over 4	1707	=over 4
1135		1708
…		…
1147	our $MAX_RESET = 3600;	1720	our $MAX_RESET = 3600;
1148	our $DEFAULT_RESET = 3000;	1721	our $DEFAULT_RESET = 3000;
1149		1722
1150	sub generate_random_map {	1723	sub generate_random_map {
1151	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
		1727
1152	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1153	$self->_create_random_map (	1729	$self->_create_random_map (
1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1190	my ($self, $merge) = @_;	1766	my ($self, $merge) = @_;
1191		1767
1192	# we have to keep some variables in memory intact	1768	# we have to keep some variables in memory intact
1193	local $self->{path};	1769	local $self->{path};
1194	local $self->{load_path};	1770	local $self->{load_path};
1195	local $self->{deny_save};
1196	local $self->{deny_reset};
1197		1771
1198	$self->SUPER::thawer_merge ($merge);	1772	$self->SUPER::thawer_merge ($merge);
1199	}	1773	}
1200		1774
1201	sub normalise {	1775	sub normalise {
…		…
1248	$self->init; # pass $1 etc.	1822	$self->init; # pass $1 etc.
1249	return $self;	1823	return $self;
1250	}	1824	}
1251	}	1825	}
1252		1826
1253	Carp::carp "unable to resolve path '$path' (base '$base').";	1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
1254	()	1828	()
1255	}	1829	}
1256		1830
1257	sub init {	1831	sub init {
1258	my ($self) = @_;	1832	my ($self) = @_;
…		…
1273		1847
1274	# the original (read-only) location	1848	# the original (read-only) location
1275	sub load_path {	1849	sub load_path {
1276	my ($self) = @_;	1850	my ($self) = @_;
1277		1851
1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1852	"$MAPDIR/$self->{path}.map"
1279	}	1853	}
1280		1854
1281	# the temporary/swap location	1855	# the temporary/swap location
1282	sub save_path {	1856	sub save_path {
1283	my ($self) = @_;	1857	my ($self) = @_;
1284		1858
1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1860	"$TMPDIR/$path.map"
1287	}	1861	}
1288		1862
1289	# the unique path, undef == no special unique path	1863	# the unique path, undef == no special unique path
1290	sub uniq_path {	1864	sub uniq_path {
1291	my ($self) = @_;	1865	my ($self) = @_;
1292		1866
1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1868	"$UNIQUEDIR/$path"
1295	}	1869	}
1296		1870
1297	# and all this just because we cannot iterate over	1871	sub decay_objects {
1298	# all maps in C++...
1299	sub change_all_map_light {
1300	my ($change) = @_;	1872	my ($self) = @_;
1301		1873
1302	$_->change_map_light ($change)	1874	return if $self->{deny_reset};
1303	for grep $_->outdoor, values %cf::MAP;	1875
		1876	$self->do_decay_objects;
1304	}	1877	}
1305		1878
1306	sub unlink_save {	1879	sub unlink_save {
1307	my ($self) = @_;	1880	my ($self) = @_;
1308		1881
1309	utf8::encode (my $save = $self->save_path);	1882	utf8::encode (my $save = $self->save_path);
1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1883	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1884	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313	#d#TODO remove .map and also nuke
1314	$save =~ s/\.map// or return;#d#
1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317	}	1885	}
1318		1886
1319	sub load_header_from($) {	1887	sub load_header_from($) {
1320	my ($self, $path) = @_;	1888	my ($self, $path) = @_;
1321		1889
1322	utf8::encode $path;	1890	utf8::encode $path;
1323	#aio_open $path, O_RDONLY, 0	1891	my $f = new_from_file cf::object::thawer $path
1324	# or return;
1325
1326	$self->_load_header ($path)
1327	or return;	1892	or return;
		1893
		1894	$self->_load_header ($f)
		1895	or return;
		1896
		1897	local $MAP_LOADING{$self->{path}} = $self;
		1898	$f->resolve_delayed_derefs;
1328		1899
1329	$self->{load_path} = $path;	1900	$self->{load_path} = $path;
1330		1901
1331	1	1902	1
1332	}	1903	}
…		…
1371	$self->load_header_orig	1942	$self->load_header_orig
1372	or return;	1943	or return;
1373	$self->prepare_orig;	1944	$self->prepare_orig;
1374	}	1945	}
1375		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;
		1952
1376	1	1953	1
1377	}	1954	}
1378		1955
1379	sub find;	1956	sub find;
1380	sub find {	1957	sub find {
1381	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1382		1959
1383	$path = normalise $path, $origin && $origin->path;	1960	$path = normalise $path, $origin && $origin->path;
1384		1961
		1962	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1385	cf::lock_wait "map_find:$path";	1963	my $guard2 = cf::lock_acquire "map_find:$path";
1386		1964
1387	$cf::MAP{$path} || do {	1965	$cf::MAP{$path} || do {
1388	my $guard = cf::lock_acquire "map_find:$path";
1389	my $map = new_from_path cf::map $path	1966	my $map = new_from_path cf::map $path
1390	or return;	1967	or return;
1391		1968
1392	$map->{last_save} = $cf::RUNTIME;	1969	$map->{last_save} = $cf::RUNTIME;
1393		1970
1394	$map->load_header	1971	$map->load_header
1395	or return;	1972	or return;
1396		1973
1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1974	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1398	# doing this can freeze the server in a sync job, obviously	1975	# doing this can freeze the server in a sync job, obviously
1399	#$cf::WAIT_FOR_TICK->wait;	1976	#$cf::WAIT_FOR_TICK->wait;
		1977	undef $guard2;
		1978	undef $guard1;
1400	$map->reset;	1979	$map->reset;
1401	undef $guard;
1402	return find $path;	1980	return find $path;
1403	}	1981	}
1404		1982
1405	$cf::MAP{$path} = $map	1983	$cf::MAP{$path} = $map
1406	}	1984	}
…		…
1413	my ($self) = @_;	1991	my ($self) = @_;
1414		1992
1415	local $self->{deny_reset} = 1; # loading can take a long time	1993	local $self->{deny_reset} = 1; # loading can take a long time
1416		1994
1417	my $path = $self->{path};	1995	my $path = $self->{path};
		1996
		1997	{
1418	my $guard = cf::lock_acquire "map_load:$path";	1998	my $guard = cf::lock_acquire "map_data:$path";
1419		1999
		2000	return unless $self->valid;
1420	return if $self->in_memory != cf::MAP_SWAPPED;	2001	return unless $self->in_memory == cf::MAP_SWAPPED;
1421		2002
1422	$self->in_memory (cf::MAP_LOADING);	2003	$self->in_memory (cf::MAP_LOADING);
1423		2004
1424	$self->alloc;	2005	$self->alloc;
1425		2006
1426	$self->pre_load;	2007	$self->pre_load;
		2008	cf::cede_to_tick;
1427		2009
1428	$self->_load_objects ($self->{load_path}, 1)	2010	my $f = new_from_file cf::object::thawer $self->{load_path};
		2011	$f->skip_block;
		2012	$self->_load_objects ($f)
1429	or return;	2013	or return;
1430		2014
1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2015	$self->post_load_original
1432	if delete $self->{load_original};	2016	if delete $self->{load_original};
1433		2017
1434	if (my $uniq = $self->uniq_path) {	2018	if (my $uniq = $self->uniq_path) {
1435	utf8::encode $uniq;	2019	utf8::encode $uniq;
1436	if (aio_open $uniq, O_RDONLY, 0) {	2020	unless (aio_stat $uniq) {
		2021	if (my $f = new_from_file cf::object::thawer $uniq) {
1437	$self->clear_unique_items;	2022	$self->clear_unique_items;
1438	$self->_load_objects ($uniq, 0);	2023	$self->_load_objects ($f);
		2024	$f->resolve_delayed_derefs;
		2025	}
1439	}	2026	}
1440	}	2027	}
1441		2028
1442	Coro::cede;	2029	$f->resolve_delayed_derefs;
1443		2030
		2031	cf::cede_to_tick;
1444	# now do the right thing for maps	2032	# now do the right thing for maps
1445	$self->link_multipart_objects;	2033	$self->link_multipart_objects;
1446
1447	unless ($self->{deny_activate}) {
1448	$self->decay_objects;
1449	$self->fix_auto_apply;
1450	$self->update_buttons;
1451	Coro::cede;
1452	$self->set_darkness_map;
1453	$self->difficulty ($self->estimate_difficulty)	2034	$self->difficulty ($self->estimate_difficulty)
1454	unless $self->difficulty;	2035	unless $self->difficulty;
1455	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;
1456	$self->activate;	2043	$self->activate;
		2044	}
		2045
		2046	$self->{last_save} = $cf::RUNTIME;
		2047	$self->last_access ($cf::RUNTIME);
		2048
		2049	$self->in_memory (cf::MAP_ACTIVE);
1457	}	2050	}
1458		2051
1459	$self->post_load;	2052	$self->post_load;
1460
1461	$self->in_memory (cf::MAP_IN_MEMORY);
1462	}	2053	}
1463		2054
1464	sub customise_for {	2055	sub customise_for {
1465	my ($self, $ob) = @_;	2056	my ($self, $ob) = @_;
1466		2057
1467	return find "~" . $ob->name . "/" . $self->{path}	2058	return find "~" . $ob->name . "/" . $self->{path}
1468	if $self->per_player;	2059	if $self->per_player;
1469		2060
		2061	# return find "?party/" . $ob->name . "/" . $self->{path}
		2062	# if $self->per_party;
		2063
1470	$self	2064	$self
1471	}	2065	}
1472		2066
1473	# 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
1474	sub load_diag {	2068	sub load_neighbours {
1475	my ($map) = @_;	2069	my ($map) = @_;
1476		2070
1477	my @diag; # diagonal neighbours	2071	my @neigh; # diagonal neighbours
1478		2072
1479	for (0 .. 3) {	2073	for (0 .. 3) {
1480	my $neigh = $map->tile_path ($_)	2074	my $neigh = $map->tile_path ($_)
1481	or next;	2075	or next;
1482	$neigh = find $neigh, $map	2076	$neigh = find $neigh, $map
1483	or next;	2077	or next;
1484	$neigh->load;	2078	$neigh->load;
1485		2079
		2080	push @neigh,
1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2081	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2082	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1488	}	2083	}
1489		2084
1490	for (@diag) {	2085	for (grep defined $_->[0], @neigh) {
		2086	my ($path, $origin) = @$_;
1491	my $neigh = find @$_	2087	my $neigh = find $path, $origin
1492	or next;	2088	or next;
1493	$neigh->load;	2089	$neigh->load;
1494	}	2090	}
1495	}	2091	}
1496		2092
…		…
1501	}	2097	}
1502		2098
1503	sub do_load_sync {	2099	sub do_load_sync {
1504	my ($map) = @_;	2100	my ($map) = @_;
1505		2101
		2102	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2103	if $Coro::current == $Coro::main;
		2104
1506	cf::sync_job { $map->load };	2105	cf::sync_job { $map->load };
1507	}	2106	}
1508		2107
1509	our %MAP_PREFETCH;	2108	our %MAP_PREFETCH;
1510	our $MAP_PREFETCHER = undef;	2109	our $MAP_PREFETCHER = undef;
1511		2110
1512	sub find_async {	2111	sub find_async {
1513	my ($path, $origin) = @_;	2112	my ($path, $origin, $load) = @_;
1514		2113
1515	$path = normalise $path, $origin && $origin->{path};	2114	$path = normalise $path, $origin && $origin->{path};
1516		2115
1517	if (my $map = $cf::MAP{$path}) {	2116	if (my $map = $cf::MAP{$path}) {
1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2117	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1519	}	2118	}
1520		2119
1521	undef $MAP_PREFETCH{$path};	2120	$MAP_PREFETCH{$path} |= $load;
		2121
1522	$MAP_PREFETCHER ||= cf::async {	2122	$MAP_PREFETCHER ||= cf::async {
		2123	$Coro::current->{desc} = "map prefetcher";
		2124
1523	while (%MAP_PREFETCH) {	2125	while (%MAP_PREFETCH) {
1524	for my $path (keys %MAP_PREFETCH) {	2126	while (my ($k, $v) = each %MAP_PREFETCH) {
1525	my $map = find $path	2127	if (my $map = find $k) {
1526	or next;
1527	$map->load;	2128	$map->load if $v;
		2129	}
1528		2130
1529	delete $MAP_PREFETCH{$path};	2131	delete $MAP_PREFETCH{$k};
1530	}	2132	}
1531	}	2133	}
1532	undef $MAP_PREFETCHER;	2134	undef $MAP_PREFETCHER;
1533	};	2135	};
1534	$MAP_PREFETCHER->prio (6);	2136	$MAP_PREFETCHER->prio (6);
…		…
1537	}	2139	}
1538		2140
1539	sub save {	2141	sub save {
1540	my ($self) = @_;	2142	my ($self) = @_;
1541		2143
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2144	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2145
1544	$self->{last_save} = $cf::RUNTIME;	2146	$self->{last_save} = $cf::RUNTIME;
1545		2147
1546	return unless $self->dirty;	2148	return unless $self->dirty;
1547		2149
…		…
1553	return if $self->{deny_save};	2155	return if $self->{deny_save};
1554		2156
1555	local $self->{last_access} = $self->last_access;#d#	2157	local $self->{last_access} = $self->last_access;#d#
1556		2158
1557	cf::async {	2159	cf::async {
		2160	$Coro::current->{desc} = "map player save";
1558	$_->contr->save for $self->players;	2161	$_->contr->save for $self->players;
1559	};	2162	};
		2163
		2164	cf::get_slot 0.02;
1560		2165
1561	if ($uniq) {	2166	if ($uniq) {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2167	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2168	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1564	} else {	2169	} else {
…		…
1570	my ($self) = @_;	2175	my ($self) = @_;
1571		2176
1572	# save first because save cedes	2177	# save first because save cedes
1573	$self->save;	2178	$self->save;
1574		2179
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2181
1577	return if $self->players;	2182	return if $self->players;
1578	return if $self->in_memory != cf::MAP_IN_MEMORY;	2183	return if $self->in_memory != cf::MAP_ACTIVE;
1579	return if $self->{deny_save};	2184	return if $self->{deny_save};
1580		2185
		2186	$self->in_memory (cf::MAP_SWAPPED);
		2187
		2188	$self->deactivate;
		2189	$_->clear_links_to ($self) for values %cf::MAP;
1581	$self->clear;	2190	$self->clear;
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	}	2191	}
1584		2192
1585	sub reset_at {	2193	sub reset_at {
1586	my ($self) = @_;	2194	my ($self) = @_;
1587		2195
1588	# TODO: safety, remove and allow resettable per-player maps	2196	# TODO: safety, remove and allow resettable per-player maps
1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1590	return 1e99 if $self->{deny_reset};	2197	return 1e99 if $self->{deny_reset};
1591		2198
1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2199	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593	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;
1594		2201
…		…
1605	my ($self) = @_;	2212	my ($self) = @_;
1606		2213
1607	my $lock = cf::lock_acquire "map_data:$self->{path}";	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2215
1609	return if $self->players;	2216	return if $self->players;
1610	return if $self->isa ("ext::map_per_player");#d#
1611		2217
1612	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	}
1613		2229
1614	delete $cf::MAP{$self->path};	2230	delete $cf::MAP{$self->path};
1615		2231
1616	$self->in_memory (cf::MAP_SWAPPED);	2232	$self->deactivate;
		2233	$_->clear_links_to ($self) for values %cf::MAP;
1617	$self->clear;	2234	$self->clear;
1618
1619	$_->clear_links_to ($self) for values %cf::MAP;
1620		2235
1621	$self->unlink_save;	2236	$self->unlink_save;
1622	$self->destroy;	2237	$self->destroy;
1623	}	2238	}
1624		2239
1625	my $nuke_counter = "aaaa";	2240	my $nuke_counter = "aaaa";
1626		2241
1627	sub nuke {	2242	sub nuke {
1628	my ($self) = @_;	2243	my ($self) = @_;
1629		2244
		2245	{
		2246	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2247
1630	delete $cf::MAP{$self->path};	2248	delete $cf::MAP{$self->path};
1631		2249
1632	$self->unlink_save;	2250	$self->unlink_save;
1633		2251
1634	bless $self, "cf::map";	2252	bless $self, "cf::map";
1635	delete $self->{deny_reset};	2253	delete $self->{deny_reset};
1636	$self->{deny_save} = 1;	2254	$self->{deny_save} = 1;
1637	$self->reset_timeout (1);	2255	$self->reset_timeout (1);
1638	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2256	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1639		2257
1640	$cf::MAP{$self->path} = $self;	2258	$cf::MAP{$self->path} = $self;
		2259	}
1641		2260
1642	$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	]
1643	}	2298	}
1644		2299
1645	=item cf::map::unique_maps	2300	=item cf::map::unique_maps
1646		2301
1647	Returns an arrayref of paths of all shared maps that have	2302	Returns an arrayref of paths of all shared maps that have
1648	instantiated unique items. May block.	2303	instantiated unique items. May block.
1649		2304
1650	=cut	2305	=cut
1651		2306
1652	sub unique_maps() {	2307	sub unique_maps() {
1653	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2308	[
1654	or return;	2309	map {
1655
1656	my @paths;
1657
1658	for (@$files) {
1659	utf8::decode $_;	2310	utf8::decode $_;
1660	next if /\.pst$/;	2311	s/\.map$//; # TODO future compatibility hack
1661	next unless /^$PATH_SEP/o;	2312	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1662		2313	? ()
1663	push @paths, cf::map::normalise $_;	2314	: normalise $_
		2315	} @{ aio_readdir $UNIQUEDIR or [] }
1664	}	2316	]
1665
1666	\@paths
1667	}	2317	}
1668
1669	package cf;
1670		2318
1671	=back	2319	=back
1672		2320
1673	=head3 cf::object	2321	=head3 cf::object
1674		2322
…		…
1678		2326
1679	=over 4	2327	=over 4
1680		2328
1681	=item $ob->inv_recursive	2329	=item $ob->inv_recursive
1682		2330
1683	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.
1684		2333
1685	=cut	2334	=cut
1686		2335
1687	sub inv_recursive_;	2336	sub inv_recursive_;
1688	sub inv_recursive_ {	2337	sub inv_recursive_ {
…		…
1691		2340
1692	sub inv_recursive {	2341	sub inv_recursive {
1693	inv_recursive_ inv $_[0]	2342	inv_recursive_ inv $_[0]
1694	}	2343	}
1695		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
1696	package cf;	2373	package cf;
1697		2374
1698	=back	2375	=back
1699		2376
1700	=head3 cf::object::player	2377	=head3 cf::object::player
…		…
1706	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>
1707	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
1708	dialogue with the given NPC character.	2385	dialogue with the given NPC character.
1709		2386
1710	=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	};
1711		2402
1712	# rough implementation of a future "reply" method that works	2403	# rough implementation of a future "reply" method that works
1713	# with dialog boxes.	2404	# with dialog boxes.
1714	#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
1715	sub cf::object::player::reply($$$;$) {	2406	sub cf::object::player::reply($$$;$) {
…		…
1717		2408
1718	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1719		2410
1720	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1721	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1722	} 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 {
1723	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1724	$self->message ($msg, $flags);	2423	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2424	}
1725	}	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 (@_);
1726	}	2436	}
1727		2437
1728	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1729		2439
1730	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1743		2453
1744	=item $player_object->enter_link	2454	=item $player_object->enter_link
1745		2455
1746	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}>).
1747		2457
1748	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.
1749	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.
1750		2462
1751	Will never block.	2463	Will never block.
1752		2464
1753	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1754		2466
…		…
1777	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1778		2490
1779	return if UNIVERSAL::isa $self->map, "ext::map_link";	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1780		2492
1781	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1782	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1783		2495
1784	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1785	}	2497	}
1786		2498
1787	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1788	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1789		2503
1790	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1791		2505
1792	unless ($map) {	2506	unless ($map) {
1793	# restore original map position	2507	# restore original map position
…		…
1807	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1808	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1809	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1810		2524
1811	$map->load;	2525	$map->load;
1812	$map->load_diag;	2526	$map->load_neighbours;
1813		2527
1814	return unless $self->contr->active;	2528	return unless $self->contr->active;
		2529	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1815	$self->activate_recursive;	2530	$self->activate_recursive;
		2531
		2532	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1816	$self->enter_map ($map, $x, $y);	2533	$self->enter_map ($map, $x, $y);
1817	}	2534	}
1818		2535
1819	cf::player->attach (	2536	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1820	on_logout => sub {
1821	my ($pl) = @_;
1822		2537
1823	# abort map switching before logout	2538	Moves the player to the given map-path and coordinates by first freezing
1824	if ($pl->ob->{_link_pos}) {	2539	her, loading and preparing them map, calling the provided $check callback
1825	cf::sync_job {	2540	that has to return the map if sucecssful, and then unfreezes the player on
1826	$pl->ob->leave_link	2541	the new (success) or old (failed) map position. In either case, $done will
1827	};	2542	be called at the end of this process.
1828	}
1829	},
1830	on_login => sub {
1831	my ($pl) = @_;
1832		2543
1833	# try to abort aborted map switching on player login :)	2544	Note that $check will be called with a potentially non-loaded map, so if
1834	# should happen only on crashes	2545	it needs a loaded map it has to call C<< ->load >>.
1835	if ($pl->ob->{_link_pos}) {
1836	$pl->ob->enter_link;
1837	(async {
1838	# we need this sleep as the login has a concurrent enter_exit running
1839	# and this sleep increases chances of the player not ending up in scorn
1840	$pl->ob->reply (undef,
1841	"There was an internal problem at your last logout, "
1842	. "the server will try to bring you to your intended destination in a second.",
1843	cf::NDI_RED);
1844	Coro::Timer::sleep 1;
1845	$pl->ob->leave_link;
1846	})->prio (2);
1847	}
1848	},
1849	);
1850		2546
1851	=item $player_object->goto ($path, $x, $y)
1852
1853	=cut	2547	=cut
		2548
		2549	our $GOTOGEN;
1854		2550
1855	sub cf::object::player::goto {	2551	sub cf::object::player::goto {
1856	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;
1857		2556
1858	$self->enter_link;	2557	$self->enter_link;
1859		2558
1860	(async {	2559	(async {
		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
1861	my $map = eval {	2581	my $map = eval {
1862	my $map = cf::map::find $path;	2582	my $map = defined $path ? cf::map::find $path : undef;
		2583
		2584	if ($map) {
1863	$map = $map->customise_for ($self) if $map;	2585	$map = $map->customise_for ($self);
		2586	$map = $check->($map) if $check && $map;
		2587	} else {
		2588	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
		2590
1864	$map	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 $@;
1865	} or	2597	}
1866	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1867		2598
		2599	if ($gen == $self->{_goto_generation}) {
		2600	delete $self->{_goto_generation};
1868	$self->leave_link ($map, $x, $y);	2601	$self->leave_link ($map, $x, $y);
		2602	}
		2603
		2604	$done->() if $done;
1869	})->prio (1);	2605	})->prio (1);
1870	}	2606	}
1871		2607
1872	=item $player_object->enter_exit ($exit_object)	2608	=item $player_object->enter_exit ($exit_object)
1873		2609
…		…
1893	}	2629	}
1894		2630
1895	sub prepare_random_map {	2631	sub prepare_random_map {
1896	my ($exit) = @_;	2632	my ($exit) = @_;
1897		2633
1898	my $guard = cf::lock_acquire "exit_prepare:$exit";
1899
1900	# all this does is basically replace the /! path by	2634	# all this does is basically replace the /! path by
1901	# a new random map path (?random/...) with a seed	2635	# a new random map path (?random/...) with a seed
1902	# that depends on the exit object	2636	# that depends on the exit object
1903		2637
1904	my $rmp = parse_random_map_params $exit->msg;	2638	my $rmp = parse_random_map_params $exit->msg;
…		…
1906	if ($exit->map) {	2640	if ($exit->map) {
1907	$rmp->{region} = $exit->region->name;	2641	$rmp->{region} = $exit->region->name;
1908	$rmp->{origin_map} = $exit->map->path;	2642	$rmp->{origin_map} = $exit->map->path;
1909	$rmp->{origin_x} = $exit->x;	2643	$rmp->{origin_x} = $exit->x;
1910	$rmp->{origin_y} = $exit->y;	2644	$rmp->{origin_y} = $exit->y;
		2645
		2646	$exit->map->touch;
1911	}	2647	}
1912		2648
1913	$rmp->{random_seed} ||= $exit->random_seed;	2649	$rmp->{random_seed} ||= $exit->random_seed;
1914		2650
1915	my $data = cf::to_json $rmp;	2651	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1916	my $md5 = Digest::MD5::md5_hex $data;	2652	my $md5 = Digest::MD5::md5_hex $data;
1917	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2653	my $meta = "$RANDOMDIR/$md5.meta";
1918		2654
1919	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2655	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1920	aio_write $fh, 0, (length $data), $data, 0;	2656	aio_write $fh, 0, (length $data), $data, 0;
1921	undef $fh;	2657	undef $fh;
1922	aio_rename "$meta~", $meta;	2658	aio_rename "$meta~", $meta;
1923		2659
		2660	my $slaying = "?random/$md5";
		2661
		2662	if ($exit->valid) {
1924	$exit->slaying ("?random/$md5");	2663	$exit->slaying ("?random/$md5");
1925	$exit->msg (undef);	2664	$exit->msg (undef);
		2665	}
1926	}	2666	}
1927	}	2667	}
1928		2668
1929	sub cf::object::player::enter_exit {	2669	sub cf::object::player::enter_exit {
1930	my ($self, $exit) = @_;	2670	my ($self, $exit) = @_;
1931		2671
1932	return unless $self->type == cf::PLAYER;	2672	return unless $self->type == cf::PLAYER;
1933		2673
1934	if ($exit->slaying eq "/!") {
1935	#TODO: this should de-fi-ni-te-ly not be a sync-job
1936	cf::sync_job { prepare_random_map $exit };
1937	}
1938
1939	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1940	my $hp = $exit->stats->hp;
1941	my $sp = $exit->stats->sp;
1942
1943	$self->enter_link;	2674	$self->enter_link;
1944		2675
1945	(async {	2676	(async {
1946	$self->deactivate_recursive; # just to be sure	2677	$Coro::current->{desc} = "enter_exit";
		2678
1947	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
		2686	prepare_random_map $exit
		2687	if $exit->slaying eq "/!";
		2688	}
		2689
		2690	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2691	my $x = $exit->stats->hp;
		2692	my $y = $exit->stats->sp;
		2693
1948	$self->goto ($slaying, $hp, $sp);	2694	$self->goto ($map, $x, $y);
1949		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
1950	1;	2700	1
1951	}) {	2701	}) {
1952	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the deliantra server. "
1953	. "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. "
1954	. "Please report this to the dungeon master!",	2704	. "Please report this to the dungeon master!",
1955	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1956		2706
1957	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1958	$self->leave_link;	2708	$self->leave_link;
1959	}	2709	}
1960	})->prio (1);	2710	})->prio (1);
…		…
1973		2723
1974	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1975	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1976		2726
1977	utf8::encode $text;	2727	utf8::encode $text;
1978	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1979	}	2729	}
1980		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/shopitems" => {
		2791	id => "infobox",
		2792	title => "Shop Items",
		2793	reply => undef,
		2794	tooltip => "Shows the items currently for sale in this shop",
		2795	},
		2796	"c/resistances" => {
		2797	id => "infobox",
		2798	title => "Resistances",
		2799	reply => undef,
		2800	tooltip => "Shows your resistances",
		2801	},
		2802	"c/pets" => {
		2803	id => "infobox",
		2804	title => "Pets",
		2805	reply => undef,
		2806	tooltip => "Shows information abotu your pets/a specific pet",
		2807	},
		2808	"c/uptime" => {
		2809	id => "infobox",
		2810	title => "Uptime",
		2811	reply => undef,
		2812	tooltip => "How long the server has been running since last restart",
		2813	},
		2814	"c/mapinfo" => {
		2815	id => "infobox",
		2816	title => "Map Info",
		2817	reply => undef,
		2818	tooltip => "Information related to the maps",
		2819	},
		2820	"c/party" => {
		2821	id => "party",
		2822	title => "Party",
		2823	reply => "gsay ",
		2824	tooltip => "Messages and chat related to your party",
		2825	},
		2826	"c/death" => {
		2827	id => "death",
		2828	title => "Death",
		2829	reply => undef,
		2830	tooltip => "Reason for and more info about your most recent death",
		2831	},
		2832	"c/say" => $SAY_CHANNEL,
		2833	"c/chat" => $CHAT_CHANNEL,
		2834	);
		2835
		2836	sub cf::client::send_msg {
		2837	my ($self, $channel, $msg, $color, @extra) = @_;
		2838
		2839	$msg = $self->pl->expand_cfpod ($msg)
		2840	unless $color & cf::NDI_VERBATIM;
		2841
		2842	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2843
		2844	# check predefined channels, for the benefit of C
		2845	if ($CHANNEL{$channel}) {
		2846	$channel = $CHANNEL{$channel};
		2847
		2848	$self->ext_msg (channel_info => $channel);
		2849	$channel = $channel->{id};
		2850
		2851	} elsif (ref $channel) {
		2852	# send meta info to client, if not yet sent
		2853	unless (exists $self->{channel}{$channel->{id}}) {
		2854	$self->{channel}{$channel->{id}} = $channel;
		2855	$self->ext_msg (channel_info => $channel);
		2856	}
		2857
		2858	$channel = $channel->{id};
		2859	}
		2860
		2861	return unless @extra || length $msg;
		2862
		2863	# default colour, mask it out
		2864	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2865	if $color & cf::NDI_DEF;
		2866
		2867	my $pkt = "msg "
		2868	. $self->{json_coder}->encode (
		2869	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2870	);
		2871
		2872	# try lzf for large packets
		2873	$pkt = "lzf " . Compress::LZF::compress $pkt
		2874	if 1024 <= length $pkt and $self->{can_lzf};
		2875
		2876	# split very large packets
		2877	if (8192 < length $pkt and $self->{can_lzf}) {
		2878	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2879	$pkt = "frag";
		2880	}
		2881
		2882	$self->send_packet ($pkt);
		2883	}
		2884
		2885	=item $client->ext_msg ($type, @msg)
		2886
		2887	Sends an ext event to the client.
		2888
		2889	=cut
		2890
		2891	sub cf::client::ext_msg($$@) {
		2892	my ($self, $type, @msg) = @_;
		2893
		2894	if ($self->extcmd == 2) {
		2895	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2896	} elsif ($self->extcmd == 1) { # TODO: remove
		2897	push @msg, msgtype => "event_$type";
		2898	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2899	}
		2900	}
		2901
		2902	=item $client->ext_reply ($msgid, @msg)
		2903
		2904	Sends an ext reply to the client.
		2905
		2906	=cut
		2907
		2908	sub cf::client::ext_reply($$@) {
		2909	my ($self, $id, @msg) = @_;
		2910
		2911	if ($self->extcmd == 2) {
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2913	} elsif ($self->extcmd == 1) {
		2914	#TODO: version 1, remove
		2915	unshift @msg, msgtype => "reply", msgid => $id;
		2916	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2917	}
		2918	}
1981		2919
1982	=item $success = $client->query ($flags, "text", \&cb)	2920	=item $success = $client->query ($flags, "text", \&cb)
1983		2921
1984	Queues a query to the client, calling the given callback with	2922	Queues a query to the client, calling the given callback with
1985	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2923	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1986	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2924	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1987		2925
1988	Queries can fail, so check the return code. Or don't, as queries will become	2926	Queries can fail, so check the return code. Or don't, as queries will
1989	reliable at some point in the future.	2927	become reliable at some point in the future.
1990		2928
1991	=cut	2929	=cut
1992		2930
1993	sub cf::client::query {	2931	sub cf::client::query {
1994	my ($self, $flags, $text, $cb) = @_;	2932	my ($self, $flags, $text, $cb) = @_;
…		…
2002	utf8::encode $text;	2940	utf8::encode $text;
2003	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2941	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2004		2942
2005	$self->send_packet ($self->{query_queue}[0][0])	2943	$self->send_packet ($self->{query_queue}[0][0])
2006	if @{ $self->{query_queue} } == 1;	2944	if @{ $self->{query_queue} } == 1;
		2945
		2946	1
2007	}	2947	}
2008		2948
2009	cf::client->attach (	2949	cf::client->attach (
		2950	on_connect => sub {
		2951	my ($ns) = @_;
		2952
		2953	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2954	},
2010	on_reply => sub {	2955	on_reply => sub {
2011	my ($ns, $msg) = @_;	2956	my ($ns, $msg) = @_;
2012		2957
2013	# this weird shuffling is so that direct followup queries	2958	# this weird shuffling is so that direct followup queries
2014	# get handled first	2959	# get handled first
…		…
2026	} else {	2971	} else {
2027	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2972	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2028	}	2973	}
2029	}	2974	}
2030	},	2975	},
		2976	on_exticmd => sub {
		2977	my ($ns, $buf) = @_;
		2978
		2979	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2980
		2981	if (ref $msg) {
		2982	my ($type, $reply, @payload) =
		2983	"ARRAY" eq ref $msg
		2984	? @$msg
		2985	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2986
		2987	my @reply;
		2988
		2989	if (my $cb = $EXTICMD{$type}) {
		2990	@reply = $cb->($ns, @payload);
		2991	}
		2992
		2993	$ns->ext_reply ($reply, @reply)
		2994	if $reply;
		2995
		2996	} else {
		2997	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2998	}
		2999
		3000	cf::override;
		3001	},
2031	);	3002	);
2032		3003
2033	=item $client->async (\&cb)	3004	=item $client->async (\&cb)
2034		3005
2035	Create a new coroutine, running the specified callback. The coroutine will	3006	Create a new coroutine, running the specified callback. The coroutine will
…		…
2076	our $safe = new Safe "safe";	3047	our $safe = new Safe "safe";
2077	our $safe_hole = new Safe::Hole;	3048	our $safe_hole = new Safe::Hole;
2078		3049
2079	$SIG{FPE} = 'IGNORE';	3050	$SIG{FPE} = 'IGNORE';
2080		3051
2081	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3052	$safe->permit_only (Opcode::opset qw(
		3053	:base_core :base_mem :base_orig :base_math
		3054	grepstart grepwhile mapstart mapwhile
		3055	sort time
		3056	));
2082		3057
2083	# here we export the classes and methods available to script code	3058	# here we export the classes and methods available to script code
2084		3059
2085	=pod	3060	=pod
2086		3061
2087	The following fucntions and emthods are available within a safe environment:	3062	The following functions and methods are available within a safe environment:
2088		3063
2089	cf::object contr pay_amount pay_player map	3064	cf::object
		3065	contr pay_amount pay_player map x y force_find force_add destroy
		3066	insert remove name archname title slaying race decrease split
		3067	value
		3068
2090	cf::object::player player	3069	cf::object::player
2091	cf::player peaceful	3070	player
2092	cf::map trigger	3071
		3072	cf::player
		3073	peaceful
		3074
		3075	cf::map
		3076	trigger
2093		3077
2094	=cut	3078	=cut
2095		3079
2096	for (	3080	for (
2097	["cf::object" => qw(contr pay_amount pay_player map)],	3081	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3082	insert remove inv nrof name archname title slaying race
		3083	decrease split destroy change_exp value msg lore send_msg)],
2098	["cf::object::player" => qw(player)],	3084	["cf::object::player" => qw(player)],
2099	["cf::player" => qw(peaceful)],	3085	["cf::player" => qw(peaceful send_msg)],
2100	["cf::map" => qw(trigger)],	3086	["cf::map" => qw(trigger)],
2101	) {	3087	) {
2102	no strict 'refs';	3088	no strict 'refs';
2103	my ($pkg, @funs) = @$_;	3089	my ($pkg, @funs) = @$_;
2104	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3090	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2121	my ($code, %vars) = @_;	3107	my ($code, %vars) = @_;
2122		3108
2123	my $qcode = $code;	3109	my $qcode = $code;
2124	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3110	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2125	$qcode =~ s/\n/\\n/g;	3111	$qcode =~ s/\n/\\n/g;
		3112
		3113	%vars = (_dummy => 0) unless %vars;
2126		3114
2127	local $_;	3115	local $_;
2128	local @safe::cf::_safe_eval_args = values %vars;	3116	local @safe::cf::_safe_eval_args = values %vars;
2129		3117
2130	my $eval =	3118	my $eval =
…		…
2173	=back	3161	=back
2174		3162
2175	=cut	3163	=cut
2176		3164
2177	#############################################################################	3165	#############################################################################
2178
2179	=head2 EXTENSION DATABASE SUPPORT
2180
2181	Crossfire maintains a very simple database for extension use. It can
2182	currently store anything that can be serialised using Storable, which
2183	excludes objects.
2184
2185	The parameter C<$family> should best start with the name of the extension
2186	using it, it should be unique.
2187
2188	=over 4
2189
2190	=item $value = cf::db_get $family => $key
2191
2192	Returns a single value from the database.
2193
2194	=item cf::db_put $family => $key => $value
2195
2196	Stores the given C<$value> in the family.
2197
2198	=cut
2199
2200	our $DB;
2201
2202	sub db_load() {
2203	unless ($DB) {
2204	$DB = BDB::db_create $DB_ENV;
2205
2206	cf::sync_job {
2207	eval {
2208	$DB->set_flags (BDB::CHKSUM);
2209
2210	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2211	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2212	cf::cleanup "db_open(db): $!" if $!;
2213	};
2214	cf::cleanup "db_open(db): $@" if $@;
2215	};
2216
2217	my $path = cf::localdir . "/database.pst";
2218	if (stat $path) {
2219	cf::sync_job {
2220	my $pst = Storable::retrieve $path;
2221
2222	cf::db_put (board => data => $pst->{board});
2223	cf::db_put (guildrules => data => $pst->{guildrules});
2224	cf::db_put (rent => balance => $pst->{rent}{balance});
2225	BDB::db_env_txn_checkpoint $DB_ENV;
2226
2227	unlink $path;
2228	};
2229	}
2230	}
2231	}
2232
2233	sub db_get($$) {
2234	my $key = "$_[0]/$_[1]";
2235
2236	cf::sync_job {
2237	BDB::db_get $DB, undef, $key, my $data;
2238
2239	$! ? ()
2240	: Compress::LZF::sthaw $data
2241	}
2242	}
2243
2244	sub db_put($$$) {
2245	BDB::dbreq_pri 4;
2246	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2247	}
2248
2249	#############################################################################
2250	# the server's init and main functions	3166	# the server's init and main functions
2251		3167
		3168	sub load_facedata($) {
		3169	my ($path) = @_;
		3170
		3171	# HACK to clear player env face cache, we need some signal framework
		3172	# for this (global event?)
		3173	%ext::player_env::MUSIC_FACE_CACHE = ();
		3174
		3175	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3176
		3177	warn "loading facedata from $path\n";
		3178
		3179	my $facedata;
		3180	0 < aio_load $path, $facedata
		3181	or die "$path: $!";
		3182
		3183	$facedata = Coro::Storable::thaw $facedata;
		3184
		3185	$facedata->{version} == 2
		3186	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3187
		3188	# patch in the exptable
		3189	$facedata->{resource}{"res/exp_table"} = {
		3190	type => FT_RSRC,
		3191	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3192	};
		3193	cf::cede_to_tick;
		3194
		3195	{
		3196	my $faces = $facedata->{faceinfo};
		3197
		3198	while (my ($face, $info) = each %$faces) {
		3199	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3200
		3201	cf::face::set_visibility $idx, $info->{visibility};
		3202	cf::face::set_magicmap $idx, $info->{magicmap};
		3203	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3204	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3205
		3206	cf::cede_to_tick;
		3207	}
		3208
		3209	while (my ($face, $info) = each %$faces) {
		3210	next unless $info->{smooth};
		3211
		3212	my $idx = cf::face::find $face
		3213	or next;
		3214
		3215	if (my $smooth = cf::face::find $info->{smooth}) {
		3216	cf::face::set_smooth $idx, $smooth;
		3217	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3218	} else {
		3219	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3220	}
		3221
		3222	cf::cede_to_tick;
		3223	}
		3224	}
		3225
		3226	{
		3227	my $anims = $facedata->{animinfo};
		3228
		3229	while (my ($anim, $info) = each %$anims) {
		3230	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3231	cf::cede_to_tick;
		3232	}
		3233
		3234	cf::anim::invalidate_all; # d'oh
		3235	}
		3236
		3237	{
		3238	# TODO: for gcfclient pleasure, we should give resources
		3239	# that gcfclient doesn't grok a >10000 face index.
		3240	my $res = $facedata->{resource};
		3241
		3242	while (my ($name, $info) = each %$res) {
		3243	if (defined $info->{type}) {
		3244	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3245	my $data;
		3246
		3247	if ($info->{type} & 1) {
		3248	# prepend meta info
		3249
		3250	my $meta = $enc->encode ({
		3251	name => $name,
		3252	%{ $info->{meta} || {} },
		3253	});
		3254
		3255	$data = pack "(w/a*)*", $meta, $info->{data};
		3256	} else {
		3257	$data = $info->{data};
		3258	}
		3259
		3260	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3261	cf::face::set_type $idx, $info->{type};
		3262	} else {
		3263	$RESOURCE{$name} = $info;
		3264	}
		3265
		3266	cf::cede_to_tick;
		3267	}
		3268	}
		3269
		3270	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3271
		3272	1
		3273	}
		3274
		3275	cf::global->attach (on_resource_update => sub {
		3276	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3277	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3278
		3279	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3280	my $sound = $soundconf->{compat}[$_]
		3281	or next;
		3282
		3283	my $face = cf::face::find "sound/$sound->[1]";
		3284	cf::sound::set $sound->[0] => $face;
		3285	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3286	}
		3287
		3288	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3289	my $face = cf::face::find "sound/$v";
		3290	cf::sound::set $k => $face;
		3291	}
		3292	}
		3293	});
		3294
		3295	register_exticmd fx_want => sub {
		3296	my ($ns, $want) = @_;
		3297
		3298	while (my ($k, $v) = each %$want) {
		3299	$ns->fx_want ($k, $v);
		3300	}
		3301	};
		3302
2252	sub load_resources {	3303	sub load_resource_file($) {
2253	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3304	my $guard = lock_acquire "load_resource_file";
		3305
		3306	my $status = load_resource_file_ $_[0];
		3307	get_slot 0.1, 100;
		3308	cf::arch::commit_load;
		3309
		3310	$status
		3311	}
		3312
		3313	sub reload_regions {
		3314	# HACK to clear player env face cache, we need some signal framework
		3315	# for this (global event?)
		3316	%ext::player_env::MUSIC_FACE_CACHE = ();
		3317
		3318	load_resource_file "$MAPDIR/regions"
2254	or die "unable to load regions file\n";#d#	3319	or die "unable to load regions file\n";
2255	}
2256		3320
2257	sub cfg_load {	3321	for (cf::region::list) {
		3322	$_->{match} = qr/$_->{match}/
		3323	if exists $_->{match};
		3324	}
		3325	}
		3326
		3327	sub reload_facedata {
		3328	load_facedata "$DATADIR/facedata"
		3329	or die "unable to load facedata\n";
		3330	}
		3331
		3332	sub reload_archetypes {
		3333	load_resource_file "$DATADIR/archetypes"
		3334	or die "unable to load archetypes\n";
		3335	}
		3336
		3337	sub reload_treasures {
		3338	load_resource_file "$DATADIR/treasures"
		3339	or die "unable to load treasurelists\n";
		3340	}
		3341
		3342	sub reload_resources {
		3343	warn "reloading resource files...\n";
		3344
		3345	reload_facedata;
		3346	reload_archetypes;
		3347	reload_regions;
		3348	reload_treasures;
		3349
		3350	warn "finished reloading resource files\n";
		3351	}
		3352
		3353	sub reload_config {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3354	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	3355	or return;
2260		3356
2261	local $/;	3357	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	3358	*CFG = YAML::Load <$fh>;
2263		3359
2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3360	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2265		3361
2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3362	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3363	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2273	};	3369	};
2274	warn $@ if $@;	3370	warn $@ if $@;
2275	}	3371	}
2276	}	3372	}
2277		3373
2278	sub init {	3374	sub pidfile() {
2279	load_resources;	3375	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3376	or die "$PIDFILE: $!";
		3377	flock $fh, &Fcntl::LOCK_EX
		3378	or die "$PIDFILE: flock: $!";
		3379	$fh
		3380	}
		3381
		3382	# make sure only one server instance is running at any one time
		3383	sub atomic {
		3384	my $fh = pidfile;
		3385
		3386	my $pid = <$fh>;
		3387	kill 9, $pid if $pid > 0;
		3388
		3389	seek $fh, 0, 0;
		3390	print $fh $$;
2280	}	3391	}
2281		3392
2282	sub main {	3393	sub main {
		3394	cf::init_globals; # initialise logging
		3395
		3396	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3397	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3398	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3399	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3400
		3401	cf::init_experience;
		3402	cf::init_anim;
		3403	cf::init_attackmess;
		3404	cf::init_dynamic;
		3405
		3406	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3407
2283	# we must not ever block the main coroutine	3408	# we must not ever block the main coroutine
2284	local $Coro::idle = sub {	3409	local $Coro::idle = sub {
2285	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3410	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2286	(async {	3411	(async {
2287	Event::one_event;	3412	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3413	EV::loop EV::LOOP_ONESHOT;
2288	})->prio (Coro::PRIO_MAX);	3414	})->prio (Coro::PRIO_MAX);
2289	};	3415	};
2290		3416
2291	cfg_load;	3417	evthread_start IO::AIO::poll_fileno;
2292	db_load;	3418
		3419	cf::sync_job {
		3420	reload_resources;
		3421	reload_config;
		3422	db_init;
		3423
		3424	cf::load_settings;
		3425	cf::load_materials;
		3426	cf::init_uuid;
		3427	cf::init_signals;
		3428	cf::init_commands;
		3429	cf::init_skills;
		3430
		3431	cf::init_beforeplay;
		3432
		3433	atomic;
		3434
2293	load_extensions;	3435	load_extensions;
2294		3436
2295	$TICK_WATCHER->start;	3437	utime time, time, $RUNTIMEFILE;
		3438
		3439	# no (long-running) fork's whatsoever before this point(!)
		3440	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3441
		3442	(pop @POST_INIT)->(0) while @POST_INIT;
		3443	};
		3444
2296	Event::loop;	3445	EV::loop;
2297	}	3446	}
2298		3447
2299	#############################################################################	3448	#############################################################################
2300	# initialisation and cleanup	3449	# initialisation and cleanup
2301		3450
2302	# install some emergency cleanup handlers	3451	# install some emergency cleanup handlers
2303	BEGIN {	3452	BEGIN {
		3453	our %SIGWATCHER = ();
2304	for my $signal (qw(INT HUP TERM)) {	3454	for my $signal (qw(INT HUP TERM)) {
2305	Event->signal (	3455	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2306	reentrant => 0,
2307	data => WF_AUTOCANCEL,
2308	signal => $signal,
2309	prio => 0,
2310	cb => sub {
2311	cf::cleanup "SIG$signal";	3456	cf::cleanup "SIG$signal";
2312	},
2313	);	3457	};
		3458	}
		3459	}
		3460
		3461	sub write_runtime_sync {
		3462	# first touch the runtime file to show we are still running:
		3463	# the fsync below can take a very very long time.
		3464
		3465	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3466
		3467	my $guard = cf::lock_acquire "write_runtime";
		3468
		3469	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3470	or return;
		3471
		3472	my $value = $cf::RUNTIME + 90 + 10;
		3473	# 10 is the runtime save interval, for a monotonic clock
		3474	# 60 allows for the watchdog to kill the server.
		3475
		3476	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3477	and return;
		3478
		3479	# always fsync - this file is important
		3480	aio_fsync $fh
		3481	and return;
		3482
		3483	# touch it again to show we are up-to-date
		3484	aio_utime $fh, undef, undef;
		3485
		3486	close $fh
		3487	or return;
		3488
		3489	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3490	and return;
		3491
		3492	warn "runtime file written.\n";
		3493
2314	}	3494	1
		3495	}
		3496
		3497	our $uuid_lock;
		3498	our $uuid_skip;
		3499
		3500	sub write_uuid_sync($) {
		3501	$uuid_skip ||= $_[0];
		3502
		3503	return if $uuid_lock;
		3504	local $uuid_lock = 1;
		3505
		3506	my $uuid = "$LOCALDIR/uuid";
		3507
		3508	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3509	or return;
		3510
		3511	my $value = uuid_seq uuid_cur;
		3512
		3513	unless ($value) {
		3514	warn "cowardly refusing to write zero uuid value!\n";
		3515	return;
		3516	}
		3517
		3518	my $value = uuid_str $value + $uuid_skip;
		3519	$uuid_skip = 0;
		3520
		3521	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3522	and return;
		3523
		3524	# always fsync - this file is important
		3525	aio_fsync $fh
		3526	and return;
		3527
		3528	close $fh
		3529	or return;
		3530
		3531	aio_rename "$uuid~", $uuid
		3532	and return;
		3533
		3534	warn "uuid file written ($value).\n";
		3535
		3536	1
		3537
		3538	}
		3539
		3540	sub write_uuid($$) {
		3541	my ($skip, $sync) = @_;
		3542
		3543	$sync ? write_uuid_sync $skip
		3544	: async { write_uuid_sync $skip };
2315	}	3545	}
2316		3546
2317	sub emergency_save() {	3547	sub emergency_save() {
2318	my $freeze_guard = cf::freeze_mainloop;	3548	my $freeze_guard = cf::freeze_mainloop;
2319		3549
2320	warn "enter emergency perl save\n";	3550	warn "emergency_perl_save: enter\n";
2321		3551
2322	cf::sync_job {	3552	cf::sync_job {
		3553	# this is a trade-off: we want to be very quick here, so
		3554	# save all maps without fsync, and later call a global sync
		3555	# (which in turn might be very very slow)
		3556	local $USE_FSYNC = 0;
		3557
2323	# use a peculiar iteration method to avoid tripping on perl	3558	# use a peculiar iteration method to avoid tripping on perl
2324	# refcount bugs in for. also avoids problems with players	3559	# refcount bugs in for. also avoids problems with players
2325	# and maps saved/destroyed asynchronously.	3560	# and maps saved/destroyed asynchronously.
2326	warn "begin emergency player save\n";	3561	warn "emergency_perl_save: begin player save\n";
2327	for my $login (keys %cf::PLAYER) {	3562	for my $login (keys %cf::PLAYER) {
2328	my $pl = $cf::PLAYER{$login} or next;	3563	my $pl = $cf::PLAYER{$login} or next;
2329	$pl->valid or next;	3564	$pl->valid or next;
		3565	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2330	$pl->save;	3566	$pl->save;
2331	}	3567	}
2332	warn "end emergency player save\n";	3568	warn "emergency_perl_save: end player save\n";
2333		3569
2334	warn "begin emergency map save\n";	3570	warn "emergency_perl_save: begin map save\n";
2335	for my $path (keys %cf::MAP) {	3571	for my $path (keys %cf::MAP) {
2336	my $map = $cf::MAP{$path} or next;	3572	my $map = $cf::MAP{$path} or next;
2337	$map->valid or next;	3573	$map->valid or next;
2338	$map->save;	3574	$map->save;
2339	}	3575	}
2340	warn "end emergency map save\n";	3576	warn "emergency_perl_save: end map save\n";
2341		3577
2342	warn "begin emergency database checkpoint\n";	3578	warn "emergency_perl_save: begin database checkpoint\n";
2343	BDB::db_env_txn_checkpoint $DB_ENV;	3579	BDB::db_env_txn_checkpoint $DB_ENV;
2344	warn "end emergency database checkpoint\n";	3580	warn "emergency_perl_save: end database checkpoint\n";
		3581
		3582	warn "emergency_perl_save: begin write uuid\n";
		3583	write_uuid_sync 1;
		3584	warn "emergency_perl_save: end write uuid\n";
2345	};	3585	};
2346		3586
		3587	warn "emergency_perl_save: starting sync()\n";
		3588	IO::AIO::aio_sync sub {
		3589	warn "emergency_perl_save: finished sync()\n";
		3590	};
		3591
2347	warn "leave emergency perl save\n";	3592	warn "emergency_perl_save: leave\n";
2348	}	3593	}
2349		3594
		3595	sub post_cleanup {
		3596	my ($make_core) = @_;
		3597
		3598	warn Carp::longmess "post_cleanup backtrace"
		3599	if $make_core;
		3600
		3601	my $fh = pidfile;
		3602	unlink $PIDFILE if <$fh> == $$;
		3603	}
		3604
		3605	# a safer delete_package, copied from Symbol
		3606	sub clear_package($) {
		3607	my $pkg = shift;
		3608
		3609	# expand to full symbol table name if needed
		3610	unless ($pkg =~ /^main::.*::$/) {
		3611	$pkg = "main$pkg" if $pkg =~ /^::/;
		3612	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3613	$pkg .= '::' unless $pkg =~ /::$/;
		3614	}
		3615
		3616	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3617	my $stem_symtab = *{$stem}{HASH};
		3618
		3619	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3620	or return;
		3621
		3622	# clear all symbols
		3623	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3624	for my $name (keys %$leaf_symtab) {
		3625	_gv_clear *{"$pkg$name"};
		3626	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3627	}
		3628	warn "cleared package $pkg\n";#d#
		3629	}
		3630
2350	sub reload() {	3631	sub do_reload_perl() {
2351	# can/must only be called in main	3632	# can/must only be called in main
2352	if ($Coro::current != $Coro::main) {	3633	if ($Coro::current != $Coro::main) {
2353	warn "can only reload from main coroutine";	3634	warn "can only reload from main coroutine";
2354	return;	3635	return;
2355	}	3636	}
2356		3637
		3638	return if $RELOAD++;
		3639
		3640	my $t1 = EV::time;
		3641
		3642	while ($RELOAD) {
2357	warn "reloading...";	3643	warn "reloading...";
2358		3644
2359	warn "cancelling server ticker";	3645	warn "entering sync_job";
2360	$TICK_WATCHER->cancel;
2361		3646
		3647	cf::sync_job {
		3648	cf::write_runtime_sync; # external watchdog should not bark
2362	cf::emergency_save;	3649	cf::emergency_save;
		3650	cf::write_runtime_sync; # external watchdog should not bark
2363		3651
2364	eval {	3652	warn "syncing database to disk";
		3653	BDB::db_env_txn_checkpoint $DB_ENV;
		3654
2365	# if anything goes wrong in here, we should simply crash as we already saved	3655	# if anything goes wrong in here, we should simply crash as we already saved
2366		3656
2367	warn "cancelling all WF_AUTOCANCEL watchers";
2368	for (Event::all_watchers) {
2369	$_->cancel if $_->data & WF_AUTOCANCEL;
2370	}
2371
2372	warn "syncing database to disk";
2373	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2374
2375	warn "flushing outstanding aio requests";	3657	warn "flushing outstanding aio requests";
2376	for (;;) {
2377	BDB::flush;
2378	IO::AIO::flush;
2379	Coro::cede;
2380	last unless IO::AIO::nreqs || BDB::nreqs;	3658	while (IO::AIO::nreqs || BDB::nreqs) {
2381	warn "iterate...";	3659	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2382	}
2383
2384	warn "cancelling all extension coros";
2385	$_->cancel for values %EXT_CORO;
2386	%EXT_CORO = ();
2387
2388	warn "removing commands";
2389	%COMMAND = ();
2390
2391	warn "removing ext commands";
2392	%EXTCMD = ();
2393
2394	warn "unloading/nuking all extensions";
2395	for my $pkg (@EXTS) {
2396	warn "... unloading $pkg";
2397
2398	if (my $cb = $pkg->can ("unload")) {
2399	eval {
2400	$cb->($pkg);
2401	1
2402	} or warn "$pkg unloaded, but with errors: $@";
2403	}	3660	}
2404		3661
2405	warn "... nuking $pkg";	3662	warn "cancelling all extension coros";
2406	Symbol::delete_package $pkg;	3663	$_->cancel for values %EXT_CORO;
2407	}	3664	%EXT_CORO = ();
2408		3665
2409	warn "unloading all perl modules loaded from $LIBDIR";	3666	warn "removing commands";
2410	while (my ($k, $v) = each %INC) {	3667	%COMMAND = ();
2411	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2412		3668
		3669	warn "removing ext/exti commands";
		3670	%EXTCMD = ();
		3671	%EXTICMD = ();
		3672
		3673	warn "unloading/nuking all extensions";
		3674	for my $pkg (@EXTS) {
2413	warn "... unloading $k";	3675	warn "... unloading $pkg";
2414	delete $INC{$k};
2415		3676
2416	$k =~ s/\.pm$//;
2417	$k =~ s/\//::/g;
2418
2419	if (my $cb = $k->can ("unload_module")) {	3677	if (my $cb = $pkg->can ("unload")) {
		3678	eval {
2420	$cb->();	3679	$cb->($pkg);
		3680	1
		3681	} or warn "$pkg unloaded, but with errors: $@";
		3682	}
		3683
		3684	warn "... clearing $pkg";
		3685	clear_package $pkg;
2421	}	3686	}
2422		3687
2423	Symbol::delete_package $k;	3688	warn "unloading all perl modules loaded from $LIBDIR";
		3689	while (my ($k, $v) = each %INC) {
		3690	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3691
		3692	warn "... unloading $k";
		3693	delete $INC{$k};
		3694
		3695	$k =~ s/\.pm$//;
		3696	$k =~ s/\//::/g;
		3697
		3698	if (my $cb = $k->can ("unload_module")) {
		3699	$cb->();
		3700	}
		3701
		3702	clear_package $k;
2424	}	3703	}
2425		3704
2426	warn "getting rid of safe::, as good as possible";	3705	warn "getting rid of safe::, as good as possible";
2427	Symbol::delete_package "safe::$_"	3706	clear_package "safe::$_"
2428	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3707	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2429		3708
2430	warn "unloading cf.pm \"a bit\"";	3709	warn "unloading cf.pm \"a bit\"";
2431	delete $INC{"cf.pm"};	3710	delete $INC{"cf.pm"};
		3711	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2432		3712
2433	# don't, removes xs symbols, too,	3713	# don't, removes xs symbols, too,
2434	# and global variables created in xs	3714	# and global variables created in xs
2435	#Symbol::delete_package __PACKAGE__;	3715	#clear_package __PACKAGE__;
2436		3716
2437	warn "unload completed, starting to reload now";	3717	warn "unload completed, starting to reload now";
2438		3718
2439	warn "reloading cf.pm";	3719	warn "reloading cf.pm";
2440	require cf;	3720	require cf;
2441	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3721	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2442		3722
2443	warn "loading config and database again";	3723	warn "loading config and database again";
2444	cf::cfg_load;	3724	cf::reload_config;
2445	cf::db_load;
2446		3725
2447	warn "loading extensions";	3726	warn "loading extensions";
2448	cf::load_extensions;	3727	cf::load_extensions;
2449		3728
		3729	if ($REATTACH_ON_RELOAD) {
2450	warn "reattaching attachments to objects/players";	3730	warn "reattaching attachments to objects/players";
2451	_global_reattach;	3731	_global_reattach; # objects, sockets
2452	warn "reattaching attachments to maps";	3732	warn "reattaching attachments to maps";
2453	reattach $_ for values %MAP;	3733	reattach $_ for values %MAP;
		3734	warn "reattaching attachments to players";
		3735	reattach $_ for values %PLAYER;
		3736	}
2454		3737
2455	warn "loading reloadable resources";	3738	warn "running post_init jobs";
2456	load_resources;	3739	(pop @POST_INIT)->(1) while @POST_INIT;
2457		3740
2458	warn "restarting server ticker";	3741	warn "leaving sync_job";
2459		3742
2460	$TICK_WATCHER->start;	3743	1
		3744	} or do {
		3745	warn $@;
		3746	cf::cleanup "error while reloading, exiting.";
		3747	};
		3748
		3749	warn "reloaded";
		3750	--$RELOAD;
		3751	}
		3752
		3753	$t1 = EV::time - $t1;
		3754	warn "reload completed in ${t1}s\n";
		3755	};
		3756
		3757	our $RELOAD_WATCHER; # used only during reload
		3758
		3759	sub reload_perl() {
		3760	# doing reload synchronously and two reloads happen back-to-back,
		3761	# coro crashes during coro_state_free->destroy here.
		3762
		3763	$RELOAD_WATCHER ||= cf::async {
		3764	Coro::AIO::aio_wait cache_extensions;
		3765
		3766	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3767	do_reload_perl;
		3768	undef $RELOAD_WATCHER;
		3769	};
2461	};	3770	};
2462		3771	}
2463	if ($@) {
2464	warn $@;
2465	warn "error while reloading, exiting.";
2466	exit 1;
2467	}
2468
2469	warn "reloaded";
2470	};
2471
2472	our $RELOAD_WATCHER; # used only during reload
2473		3772
2474	register_command "reload" => sub {	3773	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	3774	my ($who, $arg) = @_;
2476		3775
2477	if ($who->flag (FLAG_WIZ)) {	3776	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("reloading server.");	3777	$who->message ("reloading server.");
2479		3778	async {
2480	# doing reload synchronously and two reloads happen back-to-back,	3779	$Coro::current->{desc} = "perl_reload";
2481	# coro crashes during coro_state_free->destroy here.
2482
2483	$RELOAD_WATCHER ||= Event->timer (
2484	reentrant => 0,
2485	after => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => sub {
2488	reload;	3780	reload_perl;
2489	undef $RELOAD_WATCHER;
2490	},
2491	);	3781	};
2492	}	3782	}
2493	};	3783	};
2494		3784
2495	unshift @INC, $LIBDIR;	3785	unshift @INC, $LIBDIR;
2496		3786
2497	my $bug_warning = 0;	3787	my $bug_warning = 0;
2498		3788
2499	$TICK_WATCHER = Event->timer (	3789	our @WAIT_FOR_TICK;
2500	reentrant => 0,	3790	our @WAIT_FOR_TICK_BEGIN;
2501	parked => 1,	3791
2502	prio => 0,	3792	sub wait_for_tick {
2503	at => $NEXT_TICK || $TICK,	3793	return if tick_inhibit || $Coro::current == $Coro::main;
2504	data => WF_AUTOCANCEL,	3794
2505	cb => sub {	3795	my $signal = new Coro::Signal;
		3796	push @WAIT_FOR_TICK, $signal;
		3797	$signal->wait;
		3798	}
		3799
		3800	sub wait_for_tick_begin {
		3801	return if tick_inhibit || $Coro::current == $Coro::main;
		3802
		3803	my $signal = new Coro::Signal;
		3804	push @WAIT_FOR_TICK_BEGIN, $signal;
		3805	$signal->wait;
		3806	}
		3807
		3808	sub tick {
2506	if ($Coro::current != $Coro::main) {	3809	if ($Coro::current != $Coro::main) {
2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3810	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2508	unless ++$bug_warning > 10;	3811	unless ++$bug_warning > 10;
2509	return;	3812	return;
2510	}	3813	}
2511		3814
2512	$NOW = Event::time;
2513
2514	cf::server_tick; # one server iteration	3815	cf::server_tick; # one server iteration
2515	$RUNTIME += $TICK;
2516	$NEXT_TICK += $TICK;
2517		3816
2518	$WAIT_FOR_TICK->broadcast;	3817	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2519	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3818	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3819	Coro::async_pool {
		3820	$Coro::current->{desc} = "runtime saver";
		3821	write_runtime_sync
		3822	or warn "ERROR: unable to write runtime file: $!";
		3823	};
		3824	}
2520		3825
2521	Event::sweep;	3826	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2522	Coro::cede_notself;	3827	$sig->send;
		3828	}
		3829	while (my $sig = shift @WAIT_FOR_TICK) {
		3830	$sig->send;
		3831	}
		3832
		3833	$LOAD = ($NOW - $TICK_START) / $TICK;
		3834	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3835
		3836	if (0) {
		3837	if ($NEXT_TICK) {
		3838	my $jitter = $TICK_START - $NEXT_TICK;
		3839	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3840	warn "jitter $JITTER\n";#d#
2523		3841	}
2524	# my $AFTER = Event::time;
2525	# warn $AFTER - $NOW;#d#
2526
2527	# if we are delayed by four ticks or more, skip them all
2528	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2529
2530	$TICK_WATCHER->at ($NEXT_TICK);
2531	$TICK_WATCHER->start;
2532	},	3842	}
2533	);	3843	}
2534		3844
2535	{	3845	{
2536	BDB::max_poll_time $TICK * 0.1;	3846	# configure BDB
2537	$BDB_POLL_WATCHER = Event->io (	3847
2538	reentrant => 0,
2539	fd => BDB::poll_fileno,
2540	poll => 'r',
2541	prio => 0,
2542	data => WF_AUTOCANCEL,
2543	cb => \&BDB::poll_cb,
2544	);
2545	BDB::min_parallel 8;	3848	BDB::min_parallel 8;
2546		3849	BDB::max_poll_reqs $TICK * 0.1;
2547	BDB::set_sync_prepare {	3850	$AnyEvent::BDB::WATCHER->priority (1);
2548	my $status;
2549	my $current = $Coro::current;
2550	(
2551	sub {
2552	$status = $!;
2553	$current->ready; undef $current;
2554	},
2555	sub {
2556	Coro::schedule while defined $current;
2557	$! = $status;
2558	},
2559	)
2560	};
2561		3851
2562	unless ($DB_ENV) {	3852	unless ($DB_ENV) {
2563	$DB_ENV = BDB::db_env_create;	3853	$DB_ENV = BDB::db_env_create;
		3854	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3855	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3856	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3857	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3858	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2564		3859
2565	cf::sync_job {	3860	cf::sync_job {
2566	eval {	3861	eval {
2567	BDB::db_env_open	3862	BDB::db_env_open
2568	$DB_ENV,	3863	$DB_ENV,
2569	$BDB_ENV_DIR,	3864	$BDBDIR,
2570	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3865	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2571	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3866	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2572	0666;	3867	0666;
2573		3868
2574	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3869	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2575
2576	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2577	$DB_ENV->set_lk_detect;
2578	};	3870	};
2579		3871
2580	cf::cleanup "db_env_open(db): $@" if $@;	3872	cf::cleanup "db_env_open(db): $@" if $@;
2581	};	3873	};
2582	}	3874	}
		3875
		3876	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3877	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3878	};
		3879	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3880	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3881	};
		3882	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3883	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3884	};
2583	}	3885	}
2584		3886
2585	{	3887	{
		3888	# configure IO::AIO
		3889
2586	IO::AIO::min_parallel 8;	3890	IO::AIO::min_parallel 8;
2587
2588	undef $Coro::AIO::WATCHER;
2589	IO::AIO::max_poll_time $TICK * 0.1;	3891	IO::AIO::max_poll_time $TICK * 0.1;
2590	$AIO_POLL_WATCHER = Event->io (	3892	undef $AnyEvent::AIO::WATCHER;
2591	reentrant => 0,
2592	fd => IO::AIO::poll_fileno,
2593	poll => 'r',
2594	prio => 6,
2595	data => WF_AUTOCANCEL,
2596	cb => \&IO::AIO::poll_cb,
2597	);
2598	}	3893	}
2599		3894
2600	$WRITE_RUNTIME_WATCHER = Event->timer (	3895	my $_log_backtrace;
2601	reentrant => 0,	3896
2602	data => WF_AUTOCANCEL,	3897	sub _log_backtrace {
2603	after => 1,	3898	my ($msg, @addr) = @_;
2604	interval => 10,	3899
2605	prio => 6, # keep it lowest so it acts like a watchdog	3900	$msg =~ s/\n//;
2606	cb => Coro::unblock_sub {	3901
2607	write_runtime	3902	# limit the # of concurrent backtraces
2608	or warn "ERROR: unable to write runtime file: $!";	3903	if ($_log_backtrace < 2) {
		3904	++$_log_backtrace;
		3905	my $perl_bt = Carp::longmess $msg;
		3906	async {
		3907	$Coro::current->{desc} = "abt $msg";
		3908
		3909	my @bt = fork_call {
		3910	@addr = map { sprintf "%x", $_ } @addr;
		3911	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3912	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3913	or die "addr2line: $!";
		3914
		3915	my @funcs;
		3916	my @res = <$fh>;
		3917	chomp for @res;
		3918	while (@res) {
		3919	my ($func, $line) = splice @res, 0, 2, ();
		3920	push @funcs, "[$func] $line";
		3921	}
		3922
		3923	@funcs
		3924	};
		3925
		3926	LOG llevInfo, "[ABT] $perl_bt\n";
		3927	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3928	LOG llevInfo, "[ABT] $_\n" for @bt;
		3929	--$_log_backtrace;
		3930	};
		3931	} else {
		3932	LOG llevInfo, "[ABT] $msg\n";
		3933	LOG llevInfo, "[ABT] [suppressed]\n";
2609	},	3934	}
2610	);	3935	}
		3936
		3937	# load additional modules
		3938	require "cf/$_.pm" for @EXTRA_MODULES;
2611		3939
2612	END { cf::emergency_save }	3940	END { cf::emergency_save }
2613		3941
2614	1	3942	1
2615		3943

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