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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.251 by root, Wed Apr 18 14:45:13 2007 UTC vs.
Revision 1.472 by root, Sat Jun 6 21:43:13 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 Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
38	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
39
40	$Event::Eval = 1; # no idea why this is required, but it is
41
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		76
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		78
49	our %COMMAND = ();	79	our %COMMAND = ();
50	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
51		81
52	our @EXTS = (); # list of extension package names	82	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	85	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	86	our %EXT_MAP = (); # pluggable maps
56		87
57	our $RELOAD; # number of reloads so far	88	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	89	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	90
		91	our $CONFDIR = confdir;
		92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
60		106
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	109	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	110	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	114	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
71		118
72	our %CFG;	119	our %CFG;
73		120
74	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
76		124
77	our %PLAYER; # all users	125	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	126	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	127	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		128
83	# 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 ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		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 $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
		140
86	binmode STDOUT;	141	binmode STDOUT;
87	binmode STDERR;	142	binmode STDERR;
88		143
89	# read virtual server time, if available	144	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
94	}	149	}
95		150
96	mkdir cf::localdir;	151	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	152
98	mkdir cf::localdir . "/" . cf::tmpdir;	153	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	154	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		155
103	our $EMERGENCY_POSITION;	156	our $EMERGENCY_POSITION;
104		157
105	sub cf::map::normalise;	158	sub cf::map::normalise;
106		159
…		…
117	=item $cf::RUNTIME	170	=item $cf::RUNTIME
118		171
119	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
120	every server tick.	173	every server tick.
121		174
122	=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
123		178
124	The perl library directory, where extensions and cf-specific modules can	179	Various directories - "/etc", read-only install directory, perl-library
125	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.
126		183
127	=item $cf::NOW	184	=item $cf::NOW
128		185
129	The time of the last (current) server tick.	186	The time of the last (current) server tick.
130		187
131	=item $cf::TICK	188	=item $cf::TICK
132		189
133	The interval between server ticks, in seconds.	190	The interval between server ticks, in seconds.
134		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
135	=item %cf::CFG	202	=item %cf::CFG
136		203
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	204	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	205	from wherever your confdir points to.
139		206
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	207	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		208
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	209	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	210	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	211	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		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.
		218
146	=back	219	=back
147		220
148	=cut	221	=cut
149		222
150	BEGIN {	223	BEGIN {
…		…
152	my $msg = join "", @_;	225	my $msg = join "", @_;
153		226
154	$msg .= "\n"	227	$msg .= "\n"
155	unless $msg =~ /\n$/;	228	unless $msg =~ /\n$/;
156		229
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	230	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		231
159	utf8::encode $msg;
160	LOG llevError, $msg;	232	LOG llevError, $msg;
161	};	233	};
162	}	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#?
163		250
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	251	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	252	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	253	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	254	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		258
171	# 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
172	# within the Safe compartment.	260	# within the Safe compartment.
173	for my $pkg (qw(	261	for my $pkg (qw(
174	cf::global cf::attachable	262	cf::global cf::attachable
175	cf::object cf::object::player	263	cf::object cf::object::player
176	cf::client cf::player	264	cf::client cf::player
177	cf::arch cf::living	265	cf::arch cf::living
		266	cf::map cf::mapspace
178	cf::map cf::party cf::region	267	cf::party cf::region
179	)) {	268	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	269	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	270	}
183		271
184	$Event::DIED = sub {	272	$EV::DIED = sub {
185	warn "error in event callback: @_";	273	warn "error in event callback: @_";
186	};	274	};
		275
		276	#############################################################################
187		277
188	=head2 UTILITY FUNCTIONS	278	=head2 UTILITY FUNCTIONS
189		279
190	=over 4	280	=over 4
191		281
…		…
210	$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;
211	$d	301	$d
212	} || "[unable to dump $_[0]: '$@']";	302	} || "[unable to dump $_[0]: '$@']";
213	}	303	}
214		304
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	305	=item $ref = cf::decode_json $json
218		306
219	Converts a JSON string into the corresponding perl data structure.	307	Converts a JSON string into the corresponding perl data structure.
220		308
221	=item $json = cf::to_json $ref	309	=item $json = cf::encode_json $ref
222		310
223	Converts a perl data structure into its JSON representation.	311	Converts a perl data structure into its JSON representation.
224		312
		313	=cut
		314
		315	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		316
		317	sub encode_json($) { $json_coder->encode ($_[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;
		332	}
		333
225	=item cf::lock_wait $string	334	=item cf::lock_wait $string
226		335
227	Wait until the given lock is available. See cf::lock_acquire.	336	Wait until the given lock is available. See cf::lock_acquire.
228		337
229	=item my $lock = cf::lock_acquire $string	338	=item my $lock = cf::lock_acquire $string
230		339
231	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
232	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,
233	for example when the coroutine gets canceled), the lock is automatically	342	for example when the coroutine gets canceled), the lock is automatically
234	returned.	343	returned.
235		344
		345	Locks are *not* recursive, locking from the same coro twice results in a
		346	deadlocked coro.
		347
236	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
237	uses map_find and cf::map::load uses map_load).	349	uses map_find and cf::map::load uses map_load).
238		350
239	=cut	351	=item $locked = cf::lock_active $string
240		352
241	our %LOCK;	353	Return true if the lock is currently active, i.e. somebody has locked it.
		354
		355	=cut
		356
		357	our $LOCKS = new Coro::SemaphoreSet;
242		358
243	sub lock_wait($) {	359	sub lock_wait($) {
244	my ($key) = @_;	360	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	361	}
252		362
253	sub lock_acquire($) {	363	sub lock_acquire($) {
254	my ($key) = @_;	364	$LOCKS->guard ($_[0])
		365	}
255		366
256	# wait, to be sure we are not locked	367	sub lock_active($) {
257	lock_wait $key;	368	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	369	}
266		370
267	sub freeze_mainloop {	371	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	372	tick_inhibit_inc;
269		373
270	my $guard = Coro::guard {	374	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	375	}
		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($$) {
		385	my ($interval, $cb) = @_;
		386
		387	my $start = rand List::Util::min 180, $interval;
		388
		389	EV::periodic $start, $interval, 0, $cb
		390	}
		391
		392	=item cf::get_slot $time[, $priority[, $name]]
		393
		394	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		395	This call blocks and returns only when you have at least C<$time> seconds
		396	of cpu time till the next tick. The slot is only valid till the next cede.
		397
		398	The optional C<$name> can be used to identify the job to run. It might be
		399	used for statistical purposes and should identify the same time-class.
		400
		401	Useful for short background jobs.
		402
		403	=cut
		404
		405	our @SLOT_QUEUE;
		406	our $SLOT_QUEUE;
		407
		408	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		409	$SLOT_QUEUE = Coro::async {
		410	$Coro::current->desc ("timeslot manager");
		411
		412	my $signal = new Coro::Signal;
		413
		414	while () {
		415	next_job:
		416	my $avail = cf::till_tick;
		417	if ($avail > 0.01) {
		418	for (0 .. $#SLOT_QUEUE) {
		419	if ($SLOT_QUEUE[$_][0] < $avail) {
		420	my $job = splice @SLOT_QUEUE, $_, 1, ();
		421	$job->[2]->send;
		422	Coro::cede;
		423	goto next_job;
		424	}
		425	}
		426	}
		427
		428	if (@SLOT_QUEUE) {
		429	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		430	push @cf::WAIT_FOR_TICK, $signal;
		431	$signal->wait;
		432	} else {
		433	Coro::schedule;
		434	}
272	};	435	}
273	$TICK_WATCHER->stop;	436	};
274	$guard	437
		438	sub get_slot($;$$) {
		439	return if tick_inhibit || $Coro::current == $Coro::main;
		440
		441	my ($time, $pri, $name) = @_;
		442
		443	$time = $TICK * .6 if $time > $TICK * .6;
		444	my $sig = new Coro::Signal;
		445
		446	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		447	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		448	$SLOT_QUEUE->ready;
		449	$sig->wait;
275	}	450	}
276		451
277	=item cf::async { BLOCK }	452	=item cf::async { BLOCK }
278		453
279	Currently the same as Coro::async_pool, meaning you cannot use	454	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		459
285	BEGIN { *async = \&Coro::async_pool }	460	BEGIN { *async = \&Coro::async_pool }
286		461
287	=item cf::sync_job { BLOCK }	462	=item cf::sync_job { BLOCK }
288		463
289	The design of crossfire+ requires that the main coro ($Coro::main) is	464	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	465	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	466	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		467	acceptable.
292		468
293	If it must be done, put the blocking parts into C<sync_job>. This will run	469	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	470	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	471	server will be frozen during this time, so the block should either finish
296	fast or be very important.	472	fast or be very important.
…		…
299		475
300	sub sync_job(&) {	476	sub sync_job(&) {
301	my ($job) = @_;	477	my ($job) = @_;
302		478
303	if ($Coro::current == $Coro::main) {	479	if ($Coro::current == $Coro::main) {
		480	my $time = EV::time;
		481
304	# this is the main coro, too bad, we have to block	482	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	483	# till the operation succeeds, freezing the server :/
306		484
307	# TODO: use suspend/resume instead	485	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	486
309	my $freeze_guard = freeze_mainloop;	487	my $freeze_guard = freeze_mainloop;
310		488
311	my $busy = 1;	489	my $busy = 1;
312	my @res;	490	my @res;
313		491
314	(async {	492	(async {
		493	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	494	@res = eval { $job->() };
316	warn $@ if $@;	495	warn $@ if $@;
317	undef $busy;	496	undef $busy;
318	})->prio (Coro::PRIO_MAX);	497	})->prio (Coro::PRIO_MAX);
319		498
320	while ($busy) {	499	while ($busy) {
321	Coro::cede or Event::one_event;	500	if (Coro::nready) {
		501	Coro::cede_notself;
		502	} else {
		503	EV::loop EV::LOOP_ONESHOT;
322	}	504	}
		505	}
		506
		507	my $time = EV::time - $time;
		508
		509	$TICK_START += $time; # do not account sync jobs to server load
323		510
324	wantarray ? @res : $res[0]	511	wantarray ? @res : $res[0]
325	} else {	512	} else {
326	# we are in another coroutine, how wonderful, everything just works	513	# we are in another coroutine, how wonderful, everything just works
327		514
…		…
347	$EXT_CORO{$coro+0} = $coro;	534	$EXT_CORO{$coro+0} = $coro;
348		535
349	$coro	536	$coro
350	}	537	}
351		538
352	sub write_runtime {	539	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		540
355	my $runtime = cf::localdir . "/runtime";	541	Executes the given code block with the given arguments in a seperate
		542	process, returning the results. Everything must be serialisable with
		543	Coro::Storable. May, of course, block. Note that the executed sub may
		544	never block itself or use any form of event handling.
356		545
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	546	=cut
358	or return;
359		547
360	my $value = $cf::RUNTIME + 90 + 10;	548	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	549	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		550
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	551	# we seemingly have to make a local copy of the whole thing,
365	and return;	552	# otherwise perl prematurely frees the stuff :/
		553	# TODO: investigate and fix (likely this will be rather laborious)
366		554
367	# always fsync - this file is important	555	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	556	reset_signals;
369	and return;	557	&$cb
		558	}, @args;
370		559
371	close $fh	560	wantarray ? @res : $res[-1]
372	or return;	561	}
373		562
374	aio_rename "$runtime~", $runtime	563	=item $coin = coin_from_name $name
375	and return;
376		564
		565	=cut
		566
		567	our %coin_alias = (
		568	"silver" => "silvercoin",
		569	"silvercoin" => "silvercoin",
		570	"silvercoins" => "silvercoin",
		571	"gold" => "goldcoin",
		572	"goldcoin" => "goldcoin",
		573	"goldcoins" => "goldcoin",
		574	"platinum" => "platinacoin",
		575	"platinumcoin" => "platinacoin",
		576	"platinumcoins" => "platinacoin",
		577	"platina" => "platinacoin",
		578	"platinacoin" => "platinacoin",
		579	"platinacoins" => "platinacoin",
		580	"royalty" => "royalty",
		581	"royalties" => "royalty",
		582	);
		583
		584	sub coin_from_name($) {
		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($$) {
		632	my $key = "$_[0]/$_[1]";
		633
		634	cf::sync_job {
		635	BDB::db_get $DB, undef, $key, my $data;
		636
		637	$! ? ()
		638	: $data
377	1	639	}
		640	}
		641
		642	sub db_put($$$) {
		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"
378	}	715	}
379		716
380	=item cf::datalog type => key => value, ...	717	=item cf::datalog type => key => value, ...
381		718
382	Log a datalog packet of the given type with the given key-value pairs.	719	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		731
395	#############################################################################	732	#############################################################################
396		733
397	=head2 ATTACHABLE OBJECTS	734	=head2 ATTACHABLE OBJECTS
398		735
399	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
400	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")
401	to it. All such attachable objects support the following methods.	738	to it. All such attachable objects support the following methods.
402		739
403	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>
404	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
405	crossfire+).	742	Deliantra).
406		743
407	=over 4	744	=over 4
408		745
409	=item $attachable->attach ($attachment, key => $value...)	746	=item $attachable->attach ($attachment, key => $value...)
410		747
…		…
454	=item cf::CLASS::attachment $name, ...	791	=item cf::CLASS::attachment $name, ...
455		792
456	Register an attachment by C<$name> through which attachable objects of the	793	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	794	given CLASS can refer to this attachment.
458		795
459	Some classes such as crossfire maps and objects can specify attachments	796	Some classes such as deliantra maps and objects can specify attachments
460	that are attached at load/instantiate time, thus the need for a name.	797	that are attached at load/instantiate time, thus the need for a name.
461		798
462	These calls expect any number of the following handler/hook descriptions:	799	These calls expect any number of the following handler/hook descriptions:
463		800
464	=over 4	801	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	910	$registry = $CB_TYPE[$object_type] ||= [];
574		911
575	} elsif ($type eq "subtype") {	912	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	913	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	914	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	915	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		916
580	} elsif ($type eq "package") {	917	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	918	my $pkg = shift @arg;
582		919
583	while (my ($name, $id) = each %cb_id) {	920	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	949	_attach $registry, $klass, @attach;
613	}	950	}
614		951
615	$obj->{$name} = \%arg;	952	$obj->{$name} = \%arg;
616	} else {	953	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	954	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	955	}
619		956
620	$obj->{_attachment}{$name} = undef;	957	$obj->{_attachment}{$name} = undef;
621	}	958	}
622		959
…		…
624	if (ref $_[0]) {	961	if (ref $_[0]) {
625	_object_attach @_;	962	_object_attach @_;
626	} else {	963	} else {
627	_attach shift->_attach_registry, @_;	964	_attach shift->_attach_registry, @_;
628	}	965	}
		966	_recalc_want;
629	};	967	};
630		968
631	# all those should be optimised	969	# all those should be optimised
632	sub cf::attachable::detach {	970	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	971	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	974	delete $obj->{_attachment}{$name};
637	reattach ($obj);	975	reattach ($obj);
638	} else {	976	} else {
639	Carp::croak "cannot, currently, detach class attachments";	977	Carp::croak "cannot, currently, detach class attachments";
640	}	978	}
		979	_recalc_want;
641	};	980	};
642		981
643	sub cf::attachable::attached {	982	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	983	my ($obj, $name) = @_;
645		984
…		…
660	";	999	";
661	die if $@;	1000	die if $@;
662	}	1001	}
663		1002
664	our $override;	1003	our $override;
665	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?
666		1005
667	sub override {	1006	sub override {
668	$override = 1;	1007	$override = 1;
669	@invoke_results = ();	1008	@INVOKE_RESULTS = (@_);
670	}	1009	}
671		1010
672	sub do_invoke {	1011	sub do_invoke {
673	my $event = shift;	1012	my $event = shift;
674	my $callbacks = shift;	1013	my $callbacks = shift;
675		1014
676	@invoke_results = ();	1015	@INVOKE_RESULTS = ();
677		1016
678	local $override;	1017	local $override;
679		1018
680	for (@$callbacks) {	1019	for (@$callbacks) {
681	eval { &{$_->[1]} };	1020	eval { &{$_->[1]} };
…		…
690	}	1029	}
691		1030
692	0	1031	0
693	}	1032	}
694		1033
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1035
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1037
699	Generate an object-specific event with the given arguments.	1038	Generate an object-specific event with the given arguments.
700		1039
701	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
702	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
703	results (if you must, access C<@cf::invoke_results> directly).	1042	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1043
705	=back	1044	=back
706		1045
707	=cut	1046	=cut
708		1047
709	#############################################################################	1048	#############################################################################
710	# 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, $ob2
		1091	}
711		1092
712	sub reattach {	1093	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1094	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1095	my ($obj) = @_;
715		1096
		1097	# no longer needed after getting rid of delete_package?
716	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
717		1099
718	my $registry = $obj->registry;	1100	my $registry = $obj->registry;
719		1101
720	@$registry = ();	1102	@$registry = ();
721		1103
…		…
736	cf::attachable->attach (	1118	cf::attachable->attach (
737	prio => -1000000,	1119	prio => -1000000,
738	on_instantiate => sub {	1120	on_instantiate => sub {
739	my ($obj, $data) = @_;	1121	my ($obj, $data) = @_;
740		1122
741	$data = from_json $data;	1123	$data = decode_json $data;
742		1124
743	for (@$data) {	1125	for (@$data) {
744	my ($name, $args) = @$_;	1126	my ($name, $args) = @$_;
745		1127
746	$obj->attach ($name, %{$args || {} });	1128	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1144	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1145	my ($filename, $rdata, $objs) = @_;
764		1146
765	sync_job {	1147	sync_job {
766	if (length $$rdata) {	1148	if (length $$rdata) {
		1149	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1150	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1151	$decname, length $$rdata, scalar @$objs;
769		1152
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1153	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1154	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1155	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1156	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1157	aio_close $fh;
775		1158
776	if (@$objs) {	1159	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	1161	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1162	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1163	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1164	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	1165	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1166	aio_rename "$filename.pst~", "$filename.pst";
784	}	1167	}
785	} else {	1168	} else {
786	aio_unlink "$filename.pst";	1169	aio_unlink "$filename.pst";
787	}	1170	}
788		1171
789	aio_rename "$filename~", $filename;	1172	aio_rename "$filename~", $filename;
		1173
		1174	$filename =~ s%/[^/]+$%%;
		1175	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1176	} else {
791	warn "FATAL: $filename~: $!\n";	1177	warn "unable to save objects: $filename~: $!\n";
792	}	1178	}
793	} else {	1179	} else {
794	aio_unlink $filename;	1180	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
796	}	1182	}
797	}	1183	};
798	}	1184	}
799		1185
800	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
802		1188
…		…
814	or return;	1200	or return;
815		1201
816	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
818	or return;	1204	or return;
		1205
819	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
820	}	1208	}
821		1209
		1210	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
824	return ($data, $av);	1214	($data, $av)
825	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
826		1222
827	#############################################################################	1223	#############################################################################
828	# command handling &c	1224	# command handling &c
829		1225
830	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1240	}
845		1241
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1243
848	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.
849		1249
850	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
851	called.	1251	called.
852		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
853	=cut	1264	=cut
854		1265
855	sub register_extcmd {	1266	sub register_extcmd {
856	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
857		1268
858	$EXTCMD{$name} = $cb;	1269	$EXTCMD{$name} = $cb;
859	}	1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
		1276	}
		1277
		1278	use File::Glob ();
860		1279
861	cf::player->attach (	1280	cf::player->attach (
862	on_command => sub {	1281	on_command => sub {
863	my ($pl, $name, $params) = @_;	1282	my ($pl, $name, $params) = @_;
864		1283
…		…
872	cf::override;	1291	cf::override;
873	},	1292	},
874	on_extcmd => sub {	1293	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1294	my ($pl, $buf) = @_;
876		1295
877	my $msg = eval { from_json $buf };	1296	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1297
879	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
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1306	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1307	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1308	}
		1309
		1310	$pl->ext_reply ($reply, @reply)
		1311	if $reply;
		1312
885	} else {	1313	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1314	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1315	}
888		1316
889	cf::override;	1317	cf::override;
890	},	1318	},
891	);	1319	);
892		1320
		1321	# "readahead" all extensions
893	sub load_extension {	1322	sub cache_extensions {
894	my ($path) = @_;	1323	my $grp = IO::AIO::aio_group;
895		1324
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1325	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1326	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1327	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1328	}
921	die $@;
922	}	1329	};
923		1330
924	push @EXTS, $pkg;	1331	$grp
925	}	1332	}
926		1333
927	sub load_extensions {	1334	sub load_extensions {
		1335	cf::sync_job {
		1336	my %todo;
		1337
928	for my $ext (<$LIBDIR/*.ext>) {	1338	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1339	next unless -r $path;
930	eval {	1340
931	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	$progress = 1;
932	1	1397	}
933	} or warn "$ext not loaded: $@";	1398
		1399	skip:
		1400	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1401	unless $progress;
		1402	}
934	}	1403	};
935	}	1404	}
936		1405
937	#############################################################################	1406	#############################################################################
938		1407
		1408	=back
		1409
939	=head2 CORE EXTENSIONS	1410	=head2 CORE EXTENSIONS
940		1411
941	Functions and methods that extend core crossfire objects.	1412	Functions and methods that extend core deliantra objects.
942		1413
943	=cut	1414	=cut
944		1415
945	package cf::player;	1416	package cf::player;
946		1417
…		…
948		1419
949	=head3 cf::player	1420	=head3 cf::player
950		1421
951	=over 4	1422	=over 4
952		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
953	=item cf::player::find $login	1438	=item cf::player::find $login
954		1439
955	Returns the given player object, loading it if necessary (might block).	1440	Returns the given player object, loading it if necessary (might block).
956		1441
957	=cut	1442	=cut
958		1443
959	sub playerdir($) {	1444	sub playerdir($) {
960	cf::localdir	1445	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1446	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1447	}
966		1448
967	sub path($) {	1449	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1450	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1460
979	sub exists($) {	1461	sub exists($) {
980	my ($login) = @_;	1462	my ($login) = @_;
981		1463
982	$cf::PLAYER{$login}	1464	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1465	or !aio_stat path $login
984	}	1466	}
985		1467
986	sub find($) {	1468	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1469	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1470	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1477	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1478	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1479	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1480	aio_unlink +(playerdir $login) . "/$login.pl";
999		1481
1000	my $pl = load_pl path $login	1482	my $f = new_from_file cf::object::thawer path $login
1001	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;
1002	$cf::PLAYER{$login} = $pl	1490	$cf::PLAYER{$login} = $pl
1003	}	1491	}
1004	}	1492	}
1005	}	1493	}
1006		1494
…		…
1015	return if $pl->{deny_save};	1503	return if $pl->{deny_save};
1016		1504
1017	aio_mkdir playerdir $pl, 0770;	1505	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1506	$pl->{last_save} = $cf::RUNTIME;
1019		1507
		1508	cf::get_slot 0.01;
		1509
1020	$pl->save_pl ($path);	1510	$pl->save_pl ($path);
1021	Coro::cede;	1511	cf::cede_to_tick;
1022	}	1512	}
1023		1513
1024	sub new($) {	1514	sub new($) {
1025	my ($login) = @_;	1515	my ($login) = @_;
1026		1516
…		…
1032	$cf::PLAYER{$login} = $self;	1522	$cf::PLAYER{$login} = $self;
1033		1523
1034	$self	1524	$self
1035	}	1525	}
1036		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
1037	=item $pl->quit_character	1537	=item $pl->quit_character
1038		1538
1039	Nukes the player without looking back. If logged in, the connection will	1539	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1540	be destroyed. May block for a long time.
1041		1541
…		…
1045	my ($pl) = @_;	1545	my ($pl) = @_;
1046		1546
1047	my $name = $pl->ob->name;	1547	my $name = $pl->ob->name;
1048		1548
1049	$pl->{deny_save} = 1;	1549	$pl->{deny_save} = 1;
1050	$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
1051		1551
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1552	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1553	$pl->deactivate;
		1554	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1555	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1556	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1557	$pl->ns->destroy if $pl->ns;
1056		1558
1057	my $path = playerdir $pl;	1559	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1560	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1590	while and may block, so not sync_job-capable, ever.
1089		1591
1090	=cut	1592	=cut
1091		1593
1092	sub list_logins {	1594	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1595	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1596	or return [];
1095		1597
1096	my @logins;	1598	my @logins;
1097		1599
1098	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") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1606	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1607	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1608	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1609	}
1102		1610
1103	utf8::decode $login;	1611	utf8::decode $login;
1104	push @logins, $login;	1612	push @logins, $login;
1105	}	1613	}
1106		1614
…		…
1133	}	1641	}
1134		1642
1135	\@paths	1643	\@paths
1136	}	1644	}
1137		1645
		1646	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1647
		1648	Expand deliantra pod fragments into protocol xml.
		1649
1138	=item $player->ext_reply ($msgid, %msg)	1650	=item $player->ext_reply ($msgid, @msg)
1139		1651
1140	Sends an ext reply to the player.	1652	Sends an ext reply to the player.
1141		1653
1142	=cut	1654	=cut
1143		1655
1144	sub ext_reply($$%) {	1656	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1657	my ($self, $id, @msg) = @_;
1146		1658
1147	$msg{msgid} = $id;	1659	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1660	}
1151		1661
1152	=item $player->ext_event ($type, %msg)	1662	=item $player->ext_msg ($type, @msg)
1153		1663
1154	Sends an ext event to the client.	1664	Sends an ext event to the client.
1155		1665
1156	=cut	1666	=cut
1157		1667
1158	sub ext_event($$%) {	1668	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1669	my ($self, $type, @msg) = @_;
1160		1670
1161	$self->ns->ext_event ($type, %msg);	1671	$self->ns->ext_msg ($type, @msg);
1162	}	1672	}
1163		1673
1164	=head3 cf::region	1674	=head3 cf::region
1165		1675
1166	=over 4	1676	=over 4
…		…
1169		1679
1170	package cf::region;	1680	package cf::region;
1171		1681
1172	=item cf::region::find_by_path $path	1682	=item cf::region::find_by_path $path
1173		1683
1174	Tries to decuce the probable region for a map knowing only its path.	1684	Tries to decuce the likely region for a map knowing only its path.
1175		1685
1176	=cut	1686	=cut
1177		1687
1178	sub find_by_path($) {	1688	sub find_by_path($) {
1179	my ($path) = @_;	1689	my ($path) = @_;
1180		1690
1181	my ($match, $specificity);	1691	my ($match, $specificity);
1182		1692
1183	for my $region (list) {	1693	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1694	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1695	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1696	if $region->specificity > $specificity;
1187	}	1697	}
1188	}	1698	}
1189		1699
…		…
1210	our $MAX_RESET = 3600;	1720	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1721	our $DEFAULT_RESET = 3000;
1212		1722
1213	sub generate_random_map {	1723	sub generate_random_map {
1214	my ($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
1215	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1729	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1766	my ($self, $merge) = @_;
1254		1767
1255	# we have to keep some variables in memory intact	1768	# we have to keep some variables in memory intact
1256	local $self->{path};	1769	local $self->{path};
1257	local $self->{load_path};	1770	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1771
1261	$self->SUPER::thawer_merge ($merge);	1772	$self->SUPER::thawer_merge ($merge);
1262	}	1773	}
1263		1774
1264	sub normalise {	1775	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1822	$self->init; # pass $1 etc.
1312	return $self;	1823	return $self;
1313	}	1824	}
1314	}	1825	}
1315		1826
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1828	()
1318	}	1829	}
1319		1830
1320	sub init {	1831	sub init {
1321	my ($self) = @_;	1832	my ($self) = @_;
…		…
1336		1847
1337	# the original (read-only) location	1848	# the original (read-only) location
1338	sub load_path {	1849	sub load_path {
1339	my ($self) = @_;	1850	my ($self) = @_;
1340		1851
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1852	"$MAPDIR/$self->{path}.map"
1342	}	1853	}
1343		1854
1344	# the temporary/swap location	1855	# the temporary/swap location
1345	sub save_path {	1856	sub save_path {
1346	my ($self) = @_;	1857	my ($self) = @_;
1347		1858
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1860	"$TMPDIR/$path.map"
1350	}	1861	}
1351		1862
1352	# the unique path, undef == no special unique path	1863	# the unique path, undef == no special unique path
1353	sub uniq_path {	1864	sub uniq_path {
1354	my ($self) = @_;	1865	my ($self) = @_;
1355		1866
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1868	"$UNIQUEDIR/$path"
1358	}	1869	}
1359		1870
1360	# and all this just because we cannot iterate over	1871	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1872	my ($self) = @_;
1364		1873
1365	$_->change_map_light ($change)	1874	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1875
		1876	$self->do_decay_objects;
1367	}	1877	}
1368		1878
1369	sub unlink_save {	1879	sub unlink_save {
1370	my ($self) = @_;	1880	my ($self) = @_;
1371		1881
…		…
1376		1886
1377	sub load_header_from($) {	1887	sub load_header_from($) {
1378	my ($self, $path) = @_;	1888	my ($self, $path) = @_;
1379		1889
1380	utf8::encode $path;	1890	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1891	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	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;
1386		1899
1387	$self->{load_path} = $path;	1900	$self->{load_path} = $path;
1388		1901
1389	1	1902	1
1390	}	1903	}
…		…
1429	$self->load_header_orig	1942	$self->load_header_orig
1430	or return;	1943	or return;
1431	$self->prepare_orig;	1944	$self->prepare_orig;
1432	}	1945	}
1433		1946
		1947	$self->{deny_reset} = 1
		1948	if $self->no_reset;
		1949
1434	$self->default_region (cf::region::find_by_path $self->{path})	1950	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1951	unless $self->default_region;
1436		1952
1437	1	1953	1
1438	}	1954	}
…		…
1441	sub find {	1957	sub find {
1442	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1443		1959
1444	$path = normalise $path, $origin && $origin->path;	1960	$path = normalise $path, $origin && $origin->path;
1445		1961
		1962	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1963	my $guard2 = cf::lock_acquire "map_find:$path";
1447		1964
1448	$cf::MAP{$path} || do {	1965	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	1966	my $map = new_from_path cf::map $path
1451	or return;	1967	or return;
1452		1968
1453	$map->{last_save} = $cf::RUNTIME;	1969	$map->{last_save} = $cf::RUNTIME;
1454		1970
1455	$map->load_header	1971	$map->load_header
1456	or return;	1972	or return;
1457		1973
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1974	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1975	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1976	#$cf::WAIT_FOR_TICK->wait;
		1977	undef $guard2;
		1978	undef $guard1;
1461	$map->reset;	1979	$map->reset;
1462	undef $guard;
1463	return find $path;	1980	return find $path;
1464	}	1981	}
1465		1982
1466	$cf::MAP{$path} = $map	1983	$cf::MAP{$path} = $map
1467	}	1984	}
…		…
1474	my ($self) = @_;	1991	my ($self) = @_;
1475		1992
1476	local $self->{deny_reset} = 1; # loading can take a long time	1993	local $self->{deny_reset} = 1; # loading can take a long time
1477		1994
1478	my $path = $self->{path};	1995	my $path = $self->{path};
		1996
		1997	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1998	my $guard = cf::lock_acquire "map_data:$path";
1480		1999
		2000	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2001	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2002
1483	$self->in_memory (cf::MAP_LOADING);	2003	$self->in_memory (cf::MAP_LOADING);
1484		2004
1485	$self->alloc;	2005	$self->alloc;
1486		2006
1487	$self->pre_load;	2007	$self->pre_load;
1488	Coro::cede;	2008	cf::cede_to_tick;
1489		2009
1490	$self->_load_objects ($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)
1491	or return;	2013	or return;
1492		2014
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2015	$self->post_load_original
1494	if delete $self->{load_original};	2016	if delete $self->{load_original};
1495		2017
1496	if (my $uniq = $self->uniq_path) {	2018	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2019	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2020	unless (aio_stat $uniq) {
		2021	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2022	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2023	$self->_load_objects ($f);
		2024	$f->resolve_delayed_derefs;
		2025	}
1501	}	2026	}
1502	}	2027	}
1503		2028
1504	Coro::cede;	2029	$f->resolve_delayed_derefs;
		2030
		2031	cf::cede_to_tick;
1505	# now do the right thing for maps	2032	# now do the right thing for maps
1506	$self->link_multipart_objects;	2033	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2034	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2035	unless $self->difficulty;
1517	Coro::cede;	2036	cf::cede_to_tick;
		2037
		2038	unless ($self->{deny_activate}) {
		2039	$self->decay_objects;
		2040	$self->fix_auto_apply;
		2041	$self->update_buttons;
		2042	cf::cede_to_tick;
1518	$self->activate;	2043	$self->activate;
1519	Coro::cede;	2044	}
		2045
		2046	$self->{last_save} = $cf::RUNTIME;
		2047	$self->last_access ($cf::RUNTIME);
		2048
		2049	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2050	}
1521		2051
1522	$self->post_load;	2052	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2053	}
1527		2054
1528	sub customise_for {	2055	sub customise_for {
1529	my ($self, $ob) = @_;	2056	my ($self, $ob) = @_;
1530		2057
1531	return find "~" . $ob->name . "/" . $self->{path}	2058	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2059	if $self->per_player;
1533		2060
		2061	# return find "?party/" . $ob->name . "/" . $self->{path}
		2062	# if $self->per_party;
		2063
1534	$self	2064	$self
1535	}	2065	}
1536		2066
1537	# find and load all maps in the 3x3 area around a map	2067	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2068	sub load_neighbours {
1539	my ($map) = @_;	2069	my ($map) = @_;
1540		2070
1541	my @diag; # diagonal neighbours	2071	my @neigh; # diagonal neighbours
1542		2072
1543	for (0 .. 3) {	2073	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2074	my $neigh = $map->tile_path ($_)
1545	or next;	2075	or next;
1546	$neigh = find $neigh, $map	2076	$neigh = find $neigh, $map
1547	or next;	2077	or next;
1548	$neigh->load;	2078	$neigh->load;
1549		2079
		2080	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2081	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2082	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2083	}
1553		2084
1554	for (@diag) {	2085	for (grep defined $_->[0], @neigh) {
		2086	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2087	my $neigh = find $path, $origin
1556	or next;	2088	or next;
1557	$neigh->load;	2089	$neigh->load;
1558	}	2090	}
1559	}	2091	}
1560		2092
…		…
1565	}	2097	}
1566		2098
1567	sub do_load_sync {	2099	sub do_load_sync {
1568	my ($map) = @_;	2100	my ($map) = @_;
1569		2101
		2102	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2103	if $Coro::current == $Coro::main;
		2104
1570	cf::sync_job { $map->load };	2105	cf::sync_job { $map->load };
1571	}	2106	}
1572		2107
1573	our %MAP_PREFETCH;	2108	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2109	our $MAP_PREFETCHER = undef;
1575		2110
1576	sub find_async {	2111	sub find_async {
1577	my ($path, $origin) = @_;	2112	my ($path, $origin, $load) = @_;
1578		2113
1579	$path = normalise $path, $origin && $origin->{path};	2114	$path = normalise $path, $origin && $origin->{path};
1580		2115
1581	if (my $map = $cf::MAP{$path}) {	2116	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2117	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2118	}
1584		2119
1585	undef $MAP_PREFETCH{$path};	2120	$MAP_PREFETCH{$path} |= $load;
		2121
1586	$MAP_PREFETCHER ||= cf::async {	2122	$MAP_PREFETCHER ||= cf::async {
		2123	$Coro::current->{desc} = "map prefetcher";
		2124
1587	while (%MAP_PREFETCH) {	2125	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2126	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2127	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2128	$map->load if $v;
		2129	}
1592		2130
1593	delete $MAP_PREFETCH{$path};	2131	delete $MAP_PREFETCH{$k};
1594	}	2132	}
1595	}	2133	}
1596	undef $MAP_PREFETCHER;	2134	undef $MAP_PREFETCHER;
1597	};	2135	};
1598	$MAP_PREFETCHER->prio (6);	2136	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2139	}
1602		2140
1603	sub save {	2141	sub save {
1604	my ($self) = @_;	2142	my ($self) = @_;
1605		2143
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2144	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2145
1608	$self->{last_save} = $cf::RUNTIME;	2146	$self->{last_save} = $cf::RUNTIME;
1609		2147
1610	return unless $self->dirty;	2148	return unless $self->dirty;
1611		2149
…		…
1617	return if $self->{deny_save};	2155	return if $self->{deny_save};
1618		2156
1619	local $self->{last_access} = $self->last_access;#d#	2157	local $self->{last_access} = $self->last_access;#d#
1620		2158
1621	cf::async {	2159	cf::async {
		2160	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2161	$_->contr->save for $self->players;
1623	};	2162	};
		2163
		2164	cf::get_slot 0.02;
1624		2165
1625	if ($uniq) {	2166	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2167	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2168	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2169	} else {
…		…
1634	my ($self) = @_;	2175	my ($self) = @_;
1635		2176
1636	# save first because save cedes	2177	# save first because save cedes
1637	$self->save;	2178	$self->save;
1638		2179
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2181
1641	return if $self->players;	2182	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2183	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2184	return if $self->{deny_save};
1644		2185
		2186	$self->in_memory (cf::MAP_SWAPPED);
		2187
		2188	$self->deactivate;
		2189	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2190	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2191	}
1648		2192
1649	sub reset_at {	2193	sub reset_at {
1650	my ($self) = @_;	2194	my ($self) = @_;
1651		2195
1652	# TODO: safety, remove and allow resettable per-player maps	2196	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2197	return 1e99 if $self->{deny_reset};
1655		2198
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2199	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2200	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2201
…		…
1669	my ($self) = @_;	2212	my ($self) = @_;
1670		2213
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2215
1673	return if $self->players;	2216	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2217
1676	warn "resetting map ", $self->path;#d#	2218	warn "resetting map ", $self->path;
1677		2219
1678	$self->in_memory (cf::MAP_SWAPPED);	2220	$self->in_memory (cf::MAP_SWAPPED);
1679		2221
1680	# need to save uniques path	2222	# need to save uniques path
1681	unless ($self->{deny_save}) {	2223	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2227	if $uniq;
1686	}	2228	}
1687		2229
1688	delete $cf::MAP{$self->path};	2230	delete $cf::MAP{$self->path};
1689		2231
		2232	$self->deactivate;
		2233	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2234	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2235
1694	$self->unlink_save;	2236	$self->unlink_save;
1695	$self->destroy;	2237	$self->destroy;
1696	}	2238	}
1697		2239
1698	my $nuke_counter = "aaaa";	2240	my $nuke_counter = "aaaa";
1699		2241
1700	sub nuke {	2242	sub nuke {
1701	my ($self) = @_;	2243	my ($self) = @_;
1702		2244
		2245	{
		2246	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2247
1703	delete $cf::MAP{$self->path};	2248	delete $cf::MAP{$self->path};
1704		2249
1705	$self->unlink_save;	2250	$self->unlink_save;
1706		2251
1707	bless $self, "cf::map";	2252	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2253	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2254	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2255	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2256	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2257
1713	$cf::MAP{$self->path} = $self;	2258	$cf::MAP{$self->path} = $self;
		2259	}
1714		2260
1715	$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	]
1716	}	2298	}
1717		2299
1718	=item cf::map::unique_maps	2300	=item cf::map::unique_maps
1719		2301
1720	Returns an arrayref of paths of all shared maps that have	2302	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2303	instantiated unique items. May block.
1722		2304
1723	=cut	2305	=cut
1724		2306
1725	sub unique_maps() {	2307	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2308	[
1727	or return;	2309	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2310	utf8::decode $_;
1733	next if /\.pst$/;	2311	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2312	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2313	? ()
1736	push @paths, cf::map::normalise $_;	2314	: normalise $_
		2315	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2316	]
1738
1739	\@paths
1740	}	2317	}
1741
1742	package cf;
1743		2318
1744	=back	2319	=back
1745		2320
1746	=head3 cf::object	2321	=head3 cf::object
1747		2322
…		…
1751		2326
1752	=over 4	2327	=over 4
1753		2328
1754	=item $ob->inv_recursive	2329	=item $ob->inv_recursive
1755		2330
1756	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.
1757		2333
1758	=cut	2334	=cut
1759		2335
1760	sub inv_recursive_;	2336	sub inv_recursive_;
1761	sub inv_recursive_ {	2337	sub inv_recursive_ {
…		…
1764		2340
1765	sub inv_recursive {	2341	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2342	inv_recursive_ inv $_[0]
1767	}	2343	}
1768		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
1769	package cf;	2373	package cf;
1770		2374
1771	=back	2375	=back
1772		2376
1773	=head3 cf::object::player	2377	=head3 cf::object::player
…		…
1779	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>
1780	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
1781	dialogue with the given NPC character.	2385	dialogue with the given NPC character.
1782		2386
1783	=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	};
1784		2402
1785	# rough implementation of a future "reply" method that works	2403	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2404	# with dialog boxes.
1787	#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
1788	sub cf::object::player::reply($$$;$) {	2406	sub cf::object::player::reply($$$;$) {
…		…
1790		2408
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2410
1793	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1795	} 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 {
1796	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2423	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2424	}
1798	}	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 (@_);
1799	}	2436	}
1800		2437
1801	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1802		2439
1803	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1816		2453
1817	=item $player_object->enter_link	2454	=item $player_object->enter_link
1818		2455
1819	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}>).
1820		2457
1821	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.
1822	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.
1823		2462
1824	Will never block.	2463	Will never block.
1825		2464
1826	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1827		2466
…		…
1850	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1851		2490
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2492
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1856		2495
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2497	}
1859		2498
1860	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1862		2503
1863	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1864		2505
1865	unless ($map) {	2506	unless ($map) {
1866	# restore original map position	2507	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1883		2524
1884	$map->load;	2525	$map->load;
1885	$map->load_diag;	2526	$map->load_neighbours;
1886		2527
1887	return unless $self->contr->active;	2528	return unless $self->contr->active;
		2529	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1888	$self->activate_recursive;	2530	$self->activate_recursive;
1889		2531
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2532	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2533	$self->enter_map ($map, $x, $y);
1892	}	2534	}
1893		2535
1894	cf::player->attach (	2536	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2537
1898	# abort map switching before logout	2538	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2539	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2540	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2541	the new (success) or old (failed) map position. In either case, $done will
1902	};	2542	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2543
1908	# try to abort aborted map switching on player login :)	2544	Note that $check will be called with a potentially non-loaded map, so if
1909	# should happen only on crashes	2545	it needs a loaded map it has to call C<< ->load >>.
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2546
1926	=item $player_object->goto ($path, $x, $y)
1927
1928	=cut	2547	=cut
		2548
		2549	our $GOTOGEN;
1929		2550
1930	sub cf::object::player::goto {	2551	sub cf::object::player::goto {
1931	my ($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;
1932		2556
1933	$self->enter_link;	2557	$self->enter_link;
1934		2558
1935	(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
1936	my $map = eval {	2581	my $map = eval {
1937	my $map = cf::map::find $path;	2582	my $map = defined $path ? cf::map::find $path : undef;
		2583
		2584	if ($map) {
1938	$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
1939	$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 $@;
1940	} or	2597	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2598
		2599	if ($gen == $self->{_goto_generation}) {
		2600	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2601	$self->leave_link ($map, $x, $y);
		2602	}
		2603
		2604	$done->() if $done;
1944	})->prio (1);	2605	})->prio (1);
1945	}	2606	}
1946		2607
1947	=item $player_object->enter_exit ($exit_object)	2608	=item $player_object->enter_exit ($exit_object)
1948		2609
…		…
1968	}	2629	}
1969		2630
1970	sub prepare_random_map {	2631	sub prepare_random_map {
1971	my ($exit) = @_;	2632	my ($exit) = @_;
1972		2633
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2634	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2635	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2636	# that depends on the exit object
1978		2637
1979	my $rmp = parse_random_map_params $exit->msg;	2638	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2640	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2641	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2642	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2643	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2644	$rmp->{origin_y} = $exit->y;
		2645
		2646	$exit->map->touch;
1986	}	2647	}
1987		2648
1988	$rmp->{random_seed} ||= $exit->random_seed;	2649	$rmp->{random_seed} ||= $exit->random_seed;
1989		2650
1990	my $data = cf::to_json $rmp;	2651	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2652	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2653	my $meta = "$RANDOMDIR/$md5.meta";
1993		2654
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2655	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2656	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2657	undef $fh;
1997	aio_rename "$meta~", $meta;	2658	aio_rename "$meta~", $meta;
1998		2659
		2660	my $slaying = "?random/$md5";
		2661
		2662	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2663	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2664	$exit->msg (undef);
		2665	}
2001	}	2666	}
2002	}	2667	}
2003		2668
2004	sub cf::object::player::enter_exit {	2669	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2670	my ($self, $exit) = @_;
2006		2671
2007	return unless $self->type == cf::PLAYER;	2672	return unless $self->type == cf::PLAYER;
2008		2673
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2674	$self->enter_link;
2021		2675
2022	(async {	2676	(async {
2023	$self->deactivate_recursive; # just to be sure	2677	$Coro::current->{desc} = "enter_exit";
		2678
2024	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
2025	$self->goto ($slaying, $hp, $sp);	2694	$self->goto ($map, $x, $y);
2026		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
2027	1;	2700	1
2028	}) {	2701	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "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. "
2031	. "Please report this to the dungeon master!",	2704	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2706
2034	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
…		…
2053		2726
2054	utf8::encode $text;	2727	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2729	}
2057		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/perceiveself" => {
		2809	id => "infobox",
		2810	title => "Perceive Self",
		2811	reply => undef,
		2812	tooltip => "You gained detailed knowledge about yourself",
		2813	},
		2814	"c/uptime" => {
		2815	id => "infobox",
		2816	title => "Uptime",
		2817	reply => undef,
		2818	tooltip => "How long the server has been running since last restart",
		2819	},
		2820	"c/mapinfo" => {
		2821	id => "infobox",
		2822	title => "Map Info",
		2823	reply => undef,
		2824	tooltip => "Information related to the maps",
		2825	},
		2826	"c/party" => {
		2827	id => "party",
		2828	title => "Party",
		2829	reply => "gsay ",
		2830	tooltip => "Messages and chat related to your party",
		2831	},
		2832	"c/death" => {
		2833	id => "death",
		2834	title => "Death",
		2835	reply => undef,
		2836	tooltip => "Reason for and more info about your most recent death",
		2837	},
		2838	"c/say" => $SAY_CHANNEL,
		2839	"c/chat" => $CHAT_CHANNEL,
		2840	);
		2841
		2842	sub cf::client::send_msg {
		2843	my ($self, $channel, $msg, $color, @extra) = @_;
		2844
		2845	$msg = $self->pl->expand_cfpod ($msg)
		2846	unless $color & cf::NDI_VERBATIM;
		2847
		2848	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2849
		2850	# check predefined channels, for the benefit of C
		2851	if ($CHANNEL{$channel}) {
		2852	$channel = $CHANNEL{$channel};
		2853
		2854	$self->ext_msg (channel_info => $channel);
		2855	$channel = $channel->{id};
		2856
		2857	} elsif (ref $channel) {
		2858	# send meta info to client, if not yet sent
		2859	unless (exists $self->{channel}{$channel->{id}}) {
		2860	$self->{channel}{$channel->{id}} = $channel;
		2861	$self->ext_msg (channel_info => $channel);
		2862	}
		2863
		2864	$channel = $channel->{id};
		2865	}
		2866
		2867	return unless @extra || length $msg;
		2868
		2869	# default colour, mask it out
		2870	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2871	if $color & cf::NDI_DEF;
		2872
		2873	my $pkt = "msg "
		2874	. $self->{json_coder}->encode (
		2875	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2876	);
		2877
		2878	# try lzf for large packets
		2879	$pkt = "lzf " . Compress::LZF::compress $pkt
		2880	if 1024 <= length $pkt and $self->{can_lzf};
		2881
		2882	# split very large packets
		2883	if (8192 < length $pkt and $self->{can_lzf}) {
		2884	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2885	$pkt = "frag";
		2886	}
		2887
		2888	$self->send_packet ($pkt);
		2889	}
		2890
2058	=item $client->ext_event ($type, %msg)	2891	=item $client->ext_msg ($type, @msg)
2059		2892
2060	Sends an exti event to the client.	2893	Sends an ext event to the client.
2061		2894
2062	=cut	2895	=cut
2063		2896
2064	sub cf::client::ext_event($$%) {	2897	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2898	my ($self, $type, @msg) = @_;
2066		2899
		2900	if ($self->extcmd == 2) {
		2901	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2902	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2903	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2904	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2905	}
		2906	}
		2907
		2908	=item $client->ext_reply ($msgid, @msg)
		2909
		2910	Sends an ext reply to the client.
		2911
		2912	=cut
		2913
		2914	sub cf::client::ext_reply($$@) {
		2915	my ($self, $id, @msg) = @_;
		2916
		2917	if ($self->extcmd == 2) {
		2918	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2919	} elsif ($self->extcmd == 1) {
		2920	#TODO: version 1, remove
		2921	unshift @msg, msgtype => "reply", msgid => $id;
		2922	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2923	}
2069	}	2924	}
2070		2925
2071	=item $success = $client->query ($flags, "text", \&cb)	2926	=item $success = $client->query ($flags, "text", \&cb)
2072		2927
2073	Queues a query to the client, calling the given callback with	2928	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2929	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2930	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2931
2077	Queries can fail, so check the return code. Or don't, as queries will become	2932	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2933	become reliable at some point in the future.
2079		2934
2080	=cut	2935	=cut
2081		2936
2082	sub cf::client::query {	2937	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2938	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2946	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2947	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2948
2094	$self->send_packet ($self->{query_queue}[0][0])	2949	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2950	if @{ $self->{query_queue} } == 1;
		2951
		2952	1
2096	}	2953	}
2097		2954
2098	cf::client->attach (	2955	cf::client->attach (
		2956	on_connect => sub {
		2957	my ($ns) = @_;
		2958
		2959	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2960	},
2099	on_reply => sub {	2961	on_reply => sub {
2100	my ($ns, $msg) = @_;	2962	my ($ns, $msg) = @_;
2101		2963
2102	# this weird shuffling is so that direct followup queries	2964	# this weird shuffling is so that direct followup queries
2103	# get handled first	2965	# get handled first
…		…
2115	} else {	2977	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2978	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2979	}
2118	}	2980	}
2119	},	2981	},
		2982	on_exticmd => sub {
		2983	my ($ns, $buf) = @_;
		2984
		2985	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2986
		2987	if (ref $msg) {
		2988	my ($type, $reply, @payload) =
		2989	"ARRAY" eq ref $msg
		2990	? @$msg
		2991	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2992
		2993	my @reply;
		2994
		2995	if (my $cb = $EXTICMD{$type}) {
		2996	@reply = $cb->($ns, @payload);
		2997	}
		2998
		2999	$ns->ext_reply ($reply, @reply)
		3000	if $reply;
		3001
		3002	} else {
		3003	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3004	}
		3005
		3006	cf::override;
		3007	},
2120	);	3008	);
2121		3009
2122	=item $client->async (\&cb)	3010	=item $client->async (\&cb)
2123		3011
2124	Create a new coroutine, running the specified callback. The coroutine will	3012	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3053	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3054	our $safe_hole = new Safe::Hole;
2167		3055
2168	$SIG{FPE} = 'IGNORE';	3056	$SIG{FPE} = 'IGNORE';
2169		3057
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3058	$safe->permit_only (Opcode::opset qw(
		3059	:base_core :base_mem :base_orig :base_math
		3060	grepstart grepwhile mapstart mapwhile
		3061	sort time
		3062	));
2171		3063
2172	# here we export the classes and methods available to script code	3064	# here we export the classes and methods available to script code
2173		3065
2174	=pod	3066	=pod
2175		3067
2176	The following functions and methods are available within a safe environment:	3068	The following functions and methods are available within a safe environment:
2177		3069
2178	cf::object contr pay_amount pay_player map	3070	cf::object
		3071	contr pay_amount pay_player map x y force_find force_add destroy
		3072	insert remove name archname title slaying race decrease split
		3073	value
		3074
2179	cf::object::player player	3075	cf::object::player
2180	cf::player peaceful	3076	player
2181	cf::map trigger	3077
		3078	cf::player
		3079	peaceful
		3080
		3081	cf::map
		3082	trigger
2182		3083
2183	=cut	3084	=cut
2184		3085
2185	for (	3086	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3087	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3088	insert remove inv nrof name archname title slaying race
		3089	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3090	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3091	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3092	["cf::map" => qw(trigger)],
2190	) {	3093	) {
2191	no strict 'refs';	3094	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3095	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3096	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2210	my ($code, %vars) = @_;	3113	my ($code, %vars) = @_;
2211		3114
2212	my $qcode = $code;	3115	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3116	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3117	$qcode =~ s/\n/\\n/g;
		3118
		3119	%vars = (_dummy => 0) unless %vars;
2215		3120
2216	local $_;	3121	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;	3122	local @safe::cf::_safe_eval_args = values %vars;
2218		3123
2219	my $eval =	3124	my $eval =
…		…
2262	=back	3167	=back
2263		3168
2264	=cut	3169	=cut
2265		3170
2266	#############################################################################	3171	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434
2435	#############################################################################
2436	# the server's init and main functions	3172	# the server's init and main functions
2437		3173
2438	sub load_facedata($) {	3174	sub load_facedata($) {
2439	my ($path) = @_;	3175	my ($path) = @_;
		3176
		3177	# HACK to clear player env face cache, we need some signal framework
		3178	# for this (global event?)
		3179	%ext::player_env::MUSIC_FACE_CACHE = ();
		3180
		3181	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2440		3182
2441	warn "loading facedata from $path\n";	3183	warn "loading facedata from $path\n";
2442		3184
2443	my $facedata;	3185	my $facedata;
2444	0 < aio_load $path, $facedata	3186	0 < aio_load $path, $facedata
…		…
2447	$facedata = Coro::Storable::thaw $facedata;	3189	$facedata = Coro::Storable::thaw $facedata;
2448		3190
2449	$facedata->{version} == 2	3191	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3192	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3193
		3194	# patch in the exptable
		3195	$facedata->{resource}{"res/exp_table"} = {
		3196	type => FT_RSRC,
		3197	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3198	};
		3199	cf::cede_to_tick;
		3200
2452	{	3201	{
2453	my $faces = $facedata->{faceinfo};	3202	my $faces = $facedata->{faceinfo};
2454		3203
2455	while (my ($face, $info) = each %$faces) {	3204	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3205	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3206
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3207	cf::face::set_visibility $idx, $info->{visibility};
		3208	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3209	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3210	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2460	Coro::cede;	3211
		3212	cf::cede_to_tick;
2461	}	3213	}
2462		3214
2463	while (my ($face, $info) = each %$faces) {	3215	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3216	next unless $info->{smooth};
		3217
2465	my $idx = cf::face::find $face	3218	my $idx = cf::face::find $face
2466	or next;	3219	or next;
		3220
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3221	if (my $smooth = cf::face::find $info->{smooth}) {
		3222	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3223	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3224	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3225	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3226	}
2472	Coro::cede;	3227
		3228	cf::cede_to_tick;
2473	}	3229	}
2474	}	3230	}
2475		3231
2476	{	3232	{
2477	my $anims = $facedata->{animinfo};	3233	my $anims = $facedata->{animinfo};
2478		3234
2479	while (my ($anim, $info) = each %$anims) {	3235	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3236	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3237	cf::cede_to_tick;
2482	}	3238	}
2483		3239
2484	cf::anim::invalidate_all; # d'oh	3240	cf::anim::invalidate_all; # d'oh
2485	}	3241	}
2486		3242
		3243	{
		3244	# TODO: for gcfclient pleasure, we should give resources
		3245	# that gcfclient doesn't grok a >10000 face index.
		3246	my $res = $facedata->{resource};
		3247
		3248	while (my ($name, $info) = each %$res) {
		3249	if (defined $info->{type}) {
		3250	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3251	my $data;
		3252
		3253	if ($info->{type} & 1) {
		3254	# prepend meta info
		3255
		3256	my $meta = $enc->encode ({
		3257	name => $name,
		3258	%{ $info->{meta} || {} },
		3259	});
		3260
		3261	$data = pack "(w/a*)*", $meta, $info->{data};
		3262	} else {
		3263	$data = $info->{data};
		3264	}
		3265
		3266	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3267	cf::face::set_type $idx, $info->{type};
		3268	} else {
		3269	$RESOURCE{$name} = $info;
		3270	}
		3271
		3272	cf::cede_to_tick;
		3273	}
		3274	}
		3275
		3276	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3277
2487	1	3278	1
2488	}	3279	}
2489		3280
		3281	cf::global->attach (on_resource_update => sub {
		3282	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3283	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3284
		3285	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3286	my $sound = $soundconf->{compat}[$_]
		3287	or next;
		3288
		3289	my $face = cf::face::find "sound/$sound->[1]";
		3290	cf::sound::set $sound->[0] => $face;
		3291	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3292	}
		3293
		3294	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3295	my $face = cf::face::find "sound/$v";
		3296	cf::sound::set $k => $face;
		3297	}
		3298	}
		3299	});
		3300
		3301	register_exticmd fx_want => sub {
		3302	my ($ns, $want) = @_;
		3303
		3304	while (my ($k, $v) = each %$want) {
		3305	$ns->fx_want ($k, $v);
		3306	}
		3307	};
		3308
		3309	sub load_resource_file($) {
		3310	my $guard = lock_acquire "load_resource_file";
		3311
		3312	my $status = load_resource_file_ $_[0];
		3313	get_slot 0.1, 100;
		3314	cf::arch::commit_load;
		3315
		3316	$status
		3317	}
		3318
		3319	sub reload_regions {
		3320	# HACK to clear player env face cache, we need some signal framework
		3321	# for this (global event?)
		3322	%ext::player_env::MUSIC_FACE_CACHE = ();
		3323
		3324	load_resource_file "$MAPDIR/regions"
		3325	or die "unable to load regions file\n";
		3326
		3327	for (cf::region::list) {
		3328	$_->{match} = qr/$_->{match}/
		3329	if exists $_->{match};
		3330	}
		3331	}
		3332
2490	sub reload_facedata {	3333	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3334	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3335	or die "unable to load facedata\n";
2493	}	3336	}
2494		3337
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3338	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3339	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3340	or die "unable to load archetypes\n";
2503	}	3341	}
2504		3342
2505	sub reload_treasures {	3343	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3344	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3345	or die "unable to load treasurelists\n";
2508	}	3346	}
2509		3347
2510	sub reload_resources {	3348	sub reload_resources {
2511	warn "reloading resource files...\n";	3349	warn "reloading resource files...\n";
2512		3350
2513	reload_regions;
2514	reload_facedata;	3351	reload_facedata;
2515	reload_archetypes;	3352	reload_archetypes;
		3353	reload_regions;
2516	reload_treasures;	3354	reload_treasures;
2517		3355
2518	warn "finished reloading resource files\n";	3356	warn "finished reloading resource files\n";
2519	}	3357	}
2520		3358
2521	sub init {	3359	sub reload_config {
2522	reload_resources;
2523	}
2524
2525	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3360	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	3361	or return;
2528		3362
2529	local $/;	3363	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	3364	*CFG = YAML::Load <$fh>;
2531		3365
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3366	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2533		3367
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3368	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3369	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2541	};	3375	};
2542	warn $@ if $@;	3376	warn $@ if $@;
2543	}	3377	}
2544	}	3378	}
2545		3379
		3380	sub pidfile() {
		3381	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3382	or die "$PIDFILE: $!";
		3383	flock $fh, &Fcntl::LOCK_EX
		3384	or die "$PIDFILE: flock: $!";
		3385	$fh
		3386	}
		3387
		3388	# make sure only one server instance is running at any one time
		3389	sub atomic {
		3390	my $fh = pidfile;
		3391
		3392	my $pid = <$fh>;
		3393	kill 9, $pid if $pid > 0;
		3394
		3395	seek $fh, 0, 0;
		3396	print $fh $$;
		3397	}
		3398
2546	sub main {	3399	sub main {
		3400	cf::init_globals; # initialise logging
		3401
		3402	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3403	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3404	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3405	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3406
		3407	cf::init_experience;
		3408	cf::init_anim;
		3409	cf::init_attackmess;
		3410	cf::init_dynamic;
		3411
		3412	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3413
2547	# we must not ever block the main coroutine	3414	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3415	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3416	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3417	(async {
2551	Event::one_event;	3418	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3419	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3420	})->prio (Coro::PRIO_MAX);
2553	};	3421	};
2554		3422
2555	cfg_load;	3423	evthread_start IO::AIO::poll_fileno;
		3424
		3425	cf::sync_job {
		3426	reload_resources;
		3427	reload_config;
2556	db_init;	3428	db_init;
		3429
		3430	cf::load_settings;
		3431	cf::load_materials;
		3432	cf::init_uuid;
		3433	cf::init_signals;
		3434	cf::init_commands;
		3435	cf::init_skills;
		3436
		3437	cf::init_beforeplay;
		3438
		3439	atomic;
		3440
2557	load_extensions;	3441	load_extensions;
2558		3442
2559	$TICK_WATCHER->start;	3443	utime time, time, $RUNTIMEFILE;
		3444
		3445	# no (long-running) fork's whatsoever before this point(!)
		3446	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3447
		3448	(pop @POST_INIT)->(0) while @POST_INIT;
		3449	};
		3450
2560	Event::loop;	3451	EV::loop;
2561	}	3452	}
2562		3453
2563	#############################################################################	3454	#############################################################################
2564	# initialisation and cleanup	3455	# initialisation and cleanup
2565		3456
2566	# install some emergency cleanup handlers	3457	# install some emergency cleanup handlers
2567	BEGIN {	3458	BEGIN {
		3459	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3460	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3461	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	signal => $signal,
2573	prio => 0,
2574	cb => sub {
2575	cf::cleanup "SIG$signal";	3462	cf::cleanup "SIG$signal";
2576	},
2577	);	3463	};
		3464	}
		3465	}
		3466
		3467	sub write_runtime_sync {
		3468	# first touch the runtime file to show we are still running:
		3469	# the fsync below can take a very very long time.
		3470
		3471	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3472
		3473	my $guard = cf::lock_acquire "write_runtime";
		3474
		3475	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3476	or return;
		3477
		3478	my $value = $cf::RUNTIME + 90 + 10;
		3479	# 10 is the runtime save interval, for a monotonic clock
		3480	# 60 allows for the watchdog to kill the server.
		3481
		3482	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3483	and return;
		3484
		3485	# always fsync - this file is important
		3486	aio_fsync $fh
		3487	and return;
		3488
		3489	# touch it again to show we are up-to-date
		3490	aio_utime $fh, undef, undef;
		3491
		3492	close $fh
		3493	or return;
		3494
		3495	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3496	and return;
		3497
		3498	warn "runtime file written.\n";
		3499
2578	}	3500	1
		3501	}
		3502
		3503	our $uuid_lock;
		3504	our $uuid_skip;
		3505
		3506	sub write_uuid_sync($) {
		3507	$uuid_skip ||= $_[0];
		3508
		3509	return if $uuid_lock;
		3510	local $uuid_lock = 1;
		3511
		3512	my $uuid = "$LOCALDIR/uuid";
		3513
		3514	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3515	or return;
		3516
		3517	my $value = uuid_seq uuid_cur;
		3518
		3519	unless ($value) {
		3520	warn "cowardly refusing to write zero uuid value!\n";
		3521	return;
		3522	}
		3523
		3524	my $value = uuid_str $value + $uuid_skip;
		3525	$uuid_skip = 0;
		3526
		3527	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3528	and return;
		3529
		3530	# always fsync - this file is important
		3531	aio_fsync $fh
		3532	and return;
		3533
		3534	close $fh
		3535	or return;
		3536
		3537	aio_rename "$uuid~", $uuid
		3538	and return;
		3539
		3540	warn "uuid file written ($value).\n";
		3541
		3542	1
		3543
		3544	}
		3545
		3546	sub write_uuid($$) {
		3547	my ($skip, $sync) = @_;
		3548
		3549	$sync ? write_uuid_sync $skip
		3550	: async { write_uuid_sync $skip };
2579	}	3551	}
2580		3552
2581	sub emergency_save() {	3553	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3554	my $freeze_guard = cf::freeze_mainloop;
2583		3555
2584	warn "enter emergency perl save\n";	3556	warn "emergency_perl_save: enter\n";
2585		3557
2586	cf::sync_job {	3558	cf::sync_job {
		3559	# this is a trade-off: we want to be very quick here, so
		3560	# save all maps without fsync, and later call a global sync
		3561	# (which in turn might be very very slow)
		3562	local $USE_FSYNC = 0;
		3563
2587	# use a peculiar iteration method to avoid tripping on perl	3564	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	3565	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	3566	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	3567	warn "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	3568	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	3569	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	3570	$pl->valid or next;
		3571	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	3572	$pl->save;
2595	}	3573	}
2596	warn "end emergency player save\n";	3574	warn "emergency_perl_save: end player save\n";
2597		3575
2598	warn "begin emergency map save\n";	3576	warn "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	3577	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	3578	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	3579	$map->valid or next;
2602	$map->save;	3580	$map->save;
2603	}	3581	}
2604	warn "end emergency map save\n";	3582	warn "emergency_perl_save: end map save\n";
2605		3583
2606	warn "begin emergency database checkpoint\n";	3584	warn "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	3585	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	3586	warn "emergency_perl_save: end database checkpoint\n";
		3587
		3588	warn "emergency_perl_save: begin write uuid\n";
		3589	write_uuid_sync 1;
		3590	warn "emergency_perl_save: end write uuid\n";
2609	};	3591	};
2610		3592
		3593	warn "emergency_perl_save: starting sync()\n";
		3594	IO::AIO::aio_sync sub {
		3595	warn "emergency_perl_save: finished sync()\n";
		3596	};
		3597
2611	warn "leave emergency perl save\n";	3598	warn "emergency_perl_save: leave\n";
2612	}	3599	}
2613		3600
2614	sub post_cleanup {	3601	sub post_cleanup {
2615	my ($make_core) = @_;	3602	my ($make_core) = @_;
2616		3603
2617	warn Carp::longmess "post_cleanup backtrace"	3604	warn Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	3605	if $make_core;
		3606
		3607	my $fh = pidfile;
		3608	unlink $PIDFILE if <$fh> == $$;
		3609	}
		3610
		3611	# a safer delete_package, copied from Symbol
		3612	sub clear_package($) {
		3613	my $pkg = shift;
		3614
		3615	# expand to full symbol table name if needed
		3616	unless ($pkg =~ /^main::.*::$/) {
		3617	$pkg = "main$pkg" if $pkg =~ /^::/;
		3618	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3619	$pkg .= '::' unless $pkg =~ /::$/;
		3620	}
		3621
		3622	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3623	my $stem_symtab = *{$stem}{HASH};
		3624
		3625	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3626	or return;
		3627
		3628	# clear all symbols
		3629	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3630	for my $name (keys %$leaf_symtab) {
		3631	_gv_clear *{"$pkg$name"};
		3632	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3633	}
		3634	warn "cleared package $pkg\n";#d#
2619	}	3635	}
2620		3636
2621	sub do_reload_perl() {	3637	sub do_reload_perl() {
2622	# can/must only be called in main	3638	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	3639	if ($Coro::current != $Coro::main) {
2624	warn "can only reload from main coroutine";	3640	warn "can only reload from main coroutine";
2625	return;	3641	return;
2626	}	3642	}
2627		3643
		3644	return if $RELOAD++;
		3645
		3646	my $t1 = EV::time;
		3647
		3648	while ($RELOAD) {
2628	warn "reloading...";	3649	warn "reloading...";
2629		3650
2630	warn "entering sync_job";	3651	warn "entering sync_job";
2631		3652
2632	cf::sync_job {	3653	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark	3654	cf::write_runtime_sync; # external watchdog should not bark
2634	cf::emergency_save;	3655	cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark	3656	cf::write_runtime_sync; # external watchdog should not bark
2636		3657
2637	warn "syncing database to disk";	3658	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;	3659	BDB::db_env_txn_checkpoint $DB_ENV;
2639		3660
2640	# if anything goes wrong in here, we should simply crash as we already saved	3661	# if anything goes wrong in here, we should simply crash as we already saved
2641		3662
2642	warn "cancelling all WF_AUTOCANCEL watchers";
2643	for (Event::all_watchers) {
2644	$_->cancel if $_->data & WF_AUTOCANCEL;
2645	}
2646
2647	warn "flushing outstanding aio requests";	3663	warn "flushing outstanding aio requests";
2648	for (;;) {
2649	BDB::flush;
2650	IO::AIO::flush;
2651	Coro::cede;
2652	last unless IO::AIO::nreqs || BDB::nreqs;	3664	while (IO::AIO::nreqs || BDB::nreqs) {
2653	warn "iterate...";	3665	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2654	}
2655
2656	++$RELOAD;
2657
2658	warn "cancelling all extension coros";
2659	$_->cancel for values %EXT_CORO;
2660	%EXT_CORO = ();
2661
2662	warn "removing commands";
2663	%COMMAND = ();
2664
2665	warn "removing ext commands";
2666	%EXTCMD = ();
2667
2668	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";
2671
2672	if (my $cb = $pkg->can ("unload")) {
2673	eval {
2674	$cb->($pkg);
2675	1
2676	} or warn "$pkg unloaded, but with errors: $@";
2677	}	3666	}
2678		3667
2679	warn "... nuking $pkg";	3668	warn "cancelling all extension coros";
2680	Symbol::delete_package $pkg;	3669	$_->cancel for values %EXT_CORO;
2681	}	3670	%EXT_CORO = ();
2682		3671
2683	warn "unloading all perl modules loaded from $LIBDIR";	3672	warn "removing commands";
2684	while (my ($k, $v) = each %INC) {	3673	%COMMAND = ();
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		3674
		3675	warn "removing ext/exti commands";
		3676	%EXTCMD = ();
		3677	%EXTICMD = ();
		3678
		3679	warn "unloading/nuking all extensions";
		3680	for my $pkg (@EXTS) {
2687	warn "... unloading $k";	3681	warn "... unloading $pkg";
2688	delete $INC{$k};
2689		3682
2690	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;
2692
2693	if (my $cb = $k->can ("unload_module")) {	3683	if (my $cb = $pkg->can ("unload")) {
		3684	eval {
2694	$cb->();	3685	$cb->($pkg);
		3686	1
		3687	} or warn "$pkg unloaded, but with errors: $@";
		3688	}
		3689
		3690	warn "... clearing $pkg";
		3691	clear_package $pkg;
2695	}	3692	}
2696		3693
2697	Symbol::delete_package $k;	3694	warn "unloading all perl modules loaded from $LIBDIR";
		3695	while (my ($k, $v) = each %INC) {
		3696	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3697
		3698	warn "... unloading $k";
		3699	delete $INC{$k};
		3700
		3701	$k =~ s/\.pm$//;
		3702	$k =~ s/\//::/g;
		3703
		3704	if (my $cb = $k->can ("unload_module")) {
		3705	$cb->();
		3706	}
		3707
		3708	clear_package $k;
2698	}	3709	}
2699		3710
2700	warn "getting rid of safe::, as good as possible";	3711	warn "getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	3712	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3713	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		3714
2704	warn "unloading cf.pm \"a bit\"";	3715	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	3716	delete $INC{"cf.pm"};
		3717	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2706		3718
2707	# don't, removes xs symbols, too,	3719	# don't, removes xs symbols, too,
2708	# and global variables created in xs	3720	# and global variables created in xs
2709	#Symbol::delete_package __PACKAGE__;	3721	#clear_package __PACKAGE__;
2710		3722
2711	warn "unload completed, starting to reload now";	3723	warn "unload completed, starting to reload now";
2712		3724
2713	warn "reloading cf.pm";	3725	warn "reloading cf.pm";
2714	require cf;	3726	require cf;
2715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3727	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2716		3728
2717	warn "loading config and database again";	3729	warn "loading config and database again";
2718	cf::cfg_load;	3730	cf::reload_config;
2719		3731
2720	warn "loading extensions";	3732	warn "loading extensions";
2721	cf::load_extensions;	3733	cf::load_extensions;
2722		3734
		3735	if ($REATTACH_ON_RELOAD) {
2723	warn "reattaching attachments to objects/players";	3736	warn "reattaching attachments to objects/players";
2724	_global_reattach; # objects, sockets	3737	_global_reattach; # objects, sockets
2725	warn "reattaching attachments to maps";	3738	warn "reattaching attachments to maps";
2726	reattach $_ for values %MAP;	3739	reattach $_ for values %MAP;
2727	warn "reattaching attachments to players";	3740	warn "reattaching attachments to players";
2728	reattach $_ for values %PLAYER;	3741	reattach $_ for values %PLAYER;
		3742	}
2729		3743
		3744	warn "running post_init jobs";
		3745	(pop @POST_INIT)->(1) while @POST_INIT;
		3746
2730	warn "leaving sync_job";	3747	warn "leaving sync_job";
2731		3748
2732	1	3749	1
2733	} or do {	3750	} or do {
2734	warn $@;	3751	warn $@;
2735	warn "error while reloading, exiting.";	3752	cf::cleanup "error while reloading, exiting.";
2736	exit 1;
2737	};	3753	};
2738		3754
2739	warn "reloaded";	3755	warn "reloaded";
		3756	--$RELOAD;
		3757	}
		3758
		3759	$t1 = EV::time - $t1;
		3760	warn "reload completed in ${t1}s\n";
2740	};	3761	};
2741		3762
2742	our $RELOAD_WATCHER; # used only during reload	3763	our $RELOAD_WATCHER; # used only during reload
2743		3764
2744	sub reload_perl() {	3765	sub reload_perl() {
2745	# doing reload synchronously and two reloads happen back-to-back,	3766	# doing reload synchronously and two reloads happen back-to-back,
2746	# coro crashes during coro_state_free->destroy here.	3767	# coro crashes during coro_state_free->destroy here.
2747		3768
2748	$RELOAD_WATCHER ||= Event->timer (	3769	$RELOAD_WATCHER ||= cf::async {
2749	reentrant => 0,	3770	Coro::AIO::aio_wait cache_extensions;
2750	after => 0,	3771
2751	data => WF_AUTOCANCEL,	3772	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2752	cb => sub {
2753	do_reload_perl;	3773	do_reload_perl;
2754	undef $RELOAD_WATCHER;	3774	undef $RELOAD_WATCHER;
2755	},	3775	};
2756	);	3776	};
2757	}	3777	}
2758		3778
2759	register_command "reload" => sub {	3779	register_command "reload" => sub {
2760	my ($who, $arg) = @_;	3780	my ($who, $arg) = @_;
2761		3781
2762	if ($who->flag (FLAG_WIZ)) {	3782	if ($who->flag (FLAG_WIZ)) {
2763	$who->message ("reloading server.");	3783	$who->message ("reloading server.");
		3784	async {
		3785	$Coro::current->{desc} = "perl_reload";
2764	async { reload_perl };	3786	reload_perl;
		3787	};
2765	}	3788	}
2766	};	3789	};
2767		3790
2768	unshift @INC, $LIBDIR;	3791	unshift @INC, $LIBDIR;
2769		3792
…		…
2771		3794
2772	our @WAIT_FOR_TICK;	3795	our @WAIT_FOR_TICK;
2773	our @WAIT_FOR_TICK_BEGIN;	3796	our @WAIT_FOR_TICK_BEGIN;
2774		3797
2775	sub wait_for_tick {	3798	sub wait_for_tick {
2776	return unless $TICK_WATCHER->is_active;
2777	return if $Coro::current == $Coro::main;	3799	return if tick_inhibit || $Coro::current == $Coro::main;
2778		3800
2779	my $signal = new Coro::Signal;	3801	my $signal = new Coro::Signal;
2780	push @WAIT_FOR_TICK, $signal;	3802	push @WAIT_FOR_TICK, $signal;
2781	$signal->wait;	3803	$signal->wait;
2782	}	3804	}
2783		3805
2784	sub wait_for_tick_begin {	3806	sub wait_for_tick_begin {
2785	return unless $TICK_WATCHER->is_active;
2786	return if $Coro::current == $Coro::main;	3807	return if tick_inhibit || $Coro::current == $Coro::main;
2787		3808
2788	my $signal = new Coro::Signal;	3809	my $signal = new Coro::Signal;
2789	push @WAIT_FOR_TICK_BEGIN, $signal;	3810	push @WAIT_FOR_TICK_BEGIN, $signal;
2790	$signal->wait;	3811	$signal->wait;
2791	}	3812	}
2792		3813
2793	$TICK_WATCHER = Event->timer (	3814	sub tick {
2794	reentrant => 0,
2795	parked => 1,
2796	prio => 0,
2797	at => $NEXT_TICK || $TICK,
2798	data => WF_AUTOCANCEL,
2799	cb => sub {
2800	if ($Coro::current != $Coro::main) {	3815	if ($Coro::current != $Coro::main) {
2801	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3816	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2802	unless ++$bug_warning > 10;	3817	unless ++$bug_warning > 10;
2803	return;	3818	return;
2804	}	3819	}
2805		3820
2806	$NOW = Event::time;
2807
2808	cf::server_tick; # one server iteration	3821	cf::server_tick; # one server iteration
2809		3822
2810	$RUNTIME += $TICK;
2811	$NEXT_TICK += $TICK;
2812
2813	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3823	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2814	$NEXT_RUNTIME_WRITE = $NOW + 10;	3824	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2815	Coro::async_pool {	3825	Coro::async_pool {
		3826	$Coro::current->{desc} = "runtime saver";
2816	write_runtime	3827	write_runtime_sync
2817	or warn "ERROR: unable to write runtime file: $!";	3828	or warn "ERROR: unable to write runtime file: $!";
2818	};
2819	}	3829	};
		3830	}
2820		3831
2821	# my $AFTER = Event::time;
2822	# warn $AFTER - $NOW;#d#
2823
2824	# if we are delayed by four ticks or more, skip them all
2825	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2826
2827	$TICK_WATCHER->at ($NEXT_TICK);
2828	$TICK_WATCHER->start;
2829
2830	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3832	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2831	$sig->send;	3833	$sig->send;
2832	}	3834	}
2833	while (my $sig = shift @WAIT_FOR_TICK) {	3835	while (my $sig = shift @WAIT_FOR_TICK) {
2834	$sig->send;	3836	$sig->send;
2835	}
2836
2837	_post_tick;
2838	},	3837	}
2839	);	3838
		3839	$LOAD = ($NOW - $TICK_START) / $TICK;
		3840	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3841
		3842	if (0) {
		3843	if ($NEXT_TICK) {
		3844	my $jitter = $TICK_START - $NEXT_TICK;
		3845	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3846	warn "jitter $JITTER\n";#d#
		3847	}
		3848	}
		3849	}
2840		3850
2841	{	3851	{
2842	BDB::max_poll_time $TICK * 0.1;	3852	# configure BDB
2843	$BDB_POLL_WATCHER = Event->io (	3853
2844	reentrant => 0,
2845	fd => BDB::poll_fileno,
2846	poll => 'r',
2847	prio => 0,
2848	data => WF_AUTOCANCEL,
2849	cb => \&BDB::poll_cb,
2850	);
2851	BDB::min_parallel 8;	3854	BDB::min_parallel 8;
2852		3855	BDB::max_poll_reqs $TICK * 0.1;
2853	BDB::set_sync_prepare {	3856	$AnyEvent::BDB::WATCHER->priority (1);
2854	my $status;
2855	my $current = $Coro::current;
2856	(
2857	sub {
2858	$status = $!;
2859	$current->ready; undef $current;
2860	},
2861	sub {
2862	Coro::schedule while defined $current;
2863	$! = $status;
2864	},
2865	)
2866	};
2867		3857
2868	unless ($DB_ENV) {	3858	unless ($DB_ENV) {
2869	$DB_ENV = BDB::db_env_create;	3859	$DB_ENV = BDB::db_env_create;
		3860	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3861	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3862	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3863	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3864	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2870		3865
2871	cf::sync_job {	3866	cf::sync_job {
2872	eval {	3867	eval {
2873	BDB::db_env_open	3868	BDB::db_env_open
2874	$DB_ENV,	3869	$DB_ENV,
2875	$BDB_ENV_DIR,	3870	$BDBDIR,
2876	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3871	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2877	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3872	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2878	0666;	3873	0666;
2879		3874
2880	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3875	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2881
2882	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2883	$DB_ENV->set_lk_detect;
2884	};	3876	};
2885		3877
2886	cf::cleanup "db_env_open(db): $@" if $@;	3878	cf::cleanup "db_env_open(db): $@" if $@;
2887	};	3879	};
2888	}	3880	}
		3881
		3882	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3883	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3884	};
		3885	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3886	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3887	};
		3888	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3889	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3890	};
2889	}	3891	}
2890		3892
2891	{	3893	{
		3894	# configure IO::AIO
		3895
2892	IO::AIO::min_parallel 8;	3896	IO::AIO::min_parallel 8;
2893
2894	undef $Coro::AIO::WATCHER;
2895	IO::AIO::max_poll_time $TICK * 0.1;	3897	IO::AIO::max_poll_time $TICK * 0.1;
2896	$AIO_POLL_WATCHER = Event->io (	3898	undef $AnyEvent::AIO::WATCHER;
2897	reentrant => 0,	3899	}
2898	data => WF_AUTOCANCEL,	3900
2899	fd => IO::AIO::poll_fileno,	3901	my $_log_backtrace;
2900	poll => 'r',	3902
2901	prio => 6,	3903	sub _log_backtrace {
2902	cb => \&IO::AIO::poll_cb,	3904	my ($msg, @addr) = @_;
2903	);	3905
		3906	$msg =~ s/\n//;
		3907
		3908	# limit the # of concurrent backtraces
		3909	if ($_log_backtrace < 2) {
		3910	++$_log_backtrace;
		3911	my $perl_bt = Carp::longmess $msg;
		3912	async {
		3913	$Coro::current->{desc} = "abt $msg";
		3914
		3915	my @bt = fork_call {
		3916	@addr = map { sprintf "%x", $_ } @addr;
		3917	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3918	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3919	or die "addr2line: $!";
		3920
		3921	my @funcs;
		3922	my @res = <$fh>;
		3923	chomp for @res;
		3924	while (@res) {
		3925	my ($func, $line) = splice @res, 0, 2, ();
		3926	push @funcs, "[$func] $line";
		3927	}
		3928
		3929	@funcs
		3930	};
		3931
		3932	LOG llevInfo, "[ABT] $perl_bt\n";
		3933	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3934	LOG llevInfo, "[ABT] $_\n" for @bt;
		3935	--$_log_backtrace;
		3936	};
		3937	} else {
		3938	LOG llevInfo, "[ABT] $msg\n";
		3939	LOG llevInfo, "[ABT] [suppressed]\n";
		3940	}
2904	}	3941	}
2905		3942
2906	# load additional modules	3943	# load additional modules
2907	use cf::pod;	3944	require "cf/$_.pm" for @EXTRA_MODULES;
2908		3945
2909	END { cf::emergency_save }	3946	END { cf::emergency_save }
2910		3947
2911	1	3948	1
2912		3949

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