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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.252 by root, Wed Apr 18 15:28:18 2007 UTC vs.
Revision 1.474 by root, Thu Jul 16 21:42:56 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		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	93
		94	our $CONFDIR = confdir;
		95	our $DATADIR = datadir;
		96	our $LIBDIR = "$DATADIR/ext";
		97	our $PODDIR = "$DATADIR/pod";
		98	our $MAPDIR = "$DATADIR/" . mapdir;
		99	our $LOCALDIR = localdir;
		100	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		101	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		102	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		103	our $RANDOMDIR = "$LOCALDIR/random";
		104	our $BDBDIR = "$LOCALDIR/db";
		105	our $PIDFILE = "$LOCALDIR/pid";
		106	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		107
		108	our %RESOURCE;
60		109
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	110	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	111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	112	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	117	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
71		121
72	our %CFG;	122	our %CFG;
73		123
74	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
76		127
77	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	130	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		131
83	# used to convert map paths into valid unix filenames by replacing / by ∕	132	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		134
		135	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		136	our $LOADAVG; # same thing, but with alpha-smoothing
		137	our $JITTER; # average jitter
		138	our $TICK_START; # for load detecting purposes
		139
		140	our @POST_INIT;
		141
		142	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		143	our $REALLY_UNLOOP; # never set to true, please :)
		144
86	binmode STDOUT;	145	binmode STDOUT;
87	binmode STDERR;	146	binmode STDERR;
88		147
89	# read virtual server time, if available	148	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	150	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
94	}	153	}
95		154
96	mkdir cf::localdir;	155	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	156
98	mkdir cf::localdir . "/" . cf::tmpdir;	157	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		159
103	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
104		161
105	sub cf::map::normalise;	162	sub cf::map::normalise;
106		163
…		…
117	=item $cf::RUNTIME	174	=item $cf::RUNTIME
118		175
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	176	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	177	every server tick.
121		178
122	=item $cf::LIBDIR	179	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		180	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		181	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		182
124	The perl library directory, where extensions and cf-specific modules can	183	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	184	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		185	unique-items directory, player file directory, random maps directory and
		186	database environment.
126		187
127	=item $cf::NOW	188	=item $cf::NOW
128		189
129	The time of the last (current) server tick.	190	The time of the last (current) server tick.
130		191
131	=item $cf::TICK	192	=item $cf::TICK
132		193
133	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
134		195
		196	=item $cf::LOADAVG
		197
		198	The current CPU load on the server (alpha-smoothed), as a value between 0
		199	(none) and 1 (overloaded), indicating how much time is spent on processing
		200	objects per tick. Healthy values are < 0.5.
		201
		202	=item $cf::LOAD
		203
		204	The raw value load value from the last tick.
		205
135	=item %cf::CFG	206	=item %cf::CFG
136		207
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	209	from wherever your confdir points to.
139		210
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		212
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	213	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	214	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.	215	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		216
		217	=item @cf::INVOKE_RESULTS
		218
		219	This array contains the results of the last C<invoke ()> call. When
		220	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		221	that call.
		222
146	=back	223	=back
147		224
148	=cut	225	=cut
149		226
150	BEGIN {	227	BEGIN {
…		…
152	my $msg = join "", @_;	229	my $msg = join "", @_;
153		230
154	$msg .= "\n"	231	$msg .= "\n"
155	unless $msg =~ /\n$/;	232	unless $msg =~ /\n$/;
156		233
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	234	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		235
159	utf8::encode $msg;
160	LOG llevError, $msg;	236	LOG llevError, $msg;
161	};	237	};
162	}	238	}
		239
		240	$Coro::State::DIEHOOK = sub {
		241	return unless $^S eq 0; # "eq", not "=="
		242
		243	if ($Coro::current == $Coro::main) {#d#
		244	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		245	return;#d#
		246	}#d#
		247
		248	# kill coroutine otherwise
		249	warn Carp::longmess $_[0];
		250	Coro::terminate
		251	};
		252
		253	$SIG{__DIE__} = sub { }; #d#?
163		254
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	255	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	256	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	257	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	258	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	259	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		260	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	261	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		262
171	# we bless all objects into (empty) derived classes to force a method lookup	263	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	264	# within the Safe compartment.
173	for my $pkg (qw(	265	for my $pkg (qw(
174	cf::global cf::attachable	266	cf::global cf::attachable
175	cf::object cf::object::player	267	cf::object cf::object::player
176	cf::client cf::player	268	cf::client cf::player
177	cf::arch cf::living	269	cf::arch cf::living
		270	cf::map cf::mapspace
178	cf::map cf::party cf::region	271	cf::party cf::region
179	)) {	272	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	273	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	274	}
183		275
184	$Event::DIED = sub {	276	$EV::DIED = sub {
185	warn "error in event callback: @_";	277	warn "error in event callback: @_";
186	};	278	};
		279
		280	#############################################################################
187		281
188	=head2 UTILITY FUNCTIONS	282	=head2 UTILITY FUNCTIONS
189		283
190	=over 4	284	=over 4
191		285
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	304	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	305	$d
212	} || "[unable to dump $_[0]: '$@']";	306	} || "[unable to dump $_[0]: '$@']";
213	}	307	}
214		308
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	309	=item $ref = cf::decode_json $json
218		310
219	Converts a JSON string into the corresponding perl data structure.	311	Converts a JSON string into the corresponding perl data structure.
220		312
221	=item $json = cf::to_json $ref	313	=item $json = cf::encode_json $ref
222		314
223	Converts a perl data structure into its JSON representation.	315	Converts a perl data structure into its JSON representation.
224		316
		317	=cut
		318
		319	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		320
		321	sub encode_json($) { $json_coder->encode ($_[0]) }
		322	sub decode_json($) { $json_coder->decode ($_[0]) }
		323
		324	=item cf::post_init { BLOCK }
		325
		326	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		327	but I<before> the server starts ticking again.
		328
		329	The cdoeblock will have a single boolean argument to indicate whether this
		330	is a reload or not.
		331
		332	=cut
		333
		334	sub post_init(&) {
		335	push @POST_INIT, shift;
		336	}
		337
225	=item cf::lock_wait $string	338	=item cf::lock_wait $string
226		339
227	Wait until the given lock is available. See cf::lock_acquire.	340	Wait until the given lock is available. See cf::lock_acquire.
228		341
229	=item my $lock = cf::lock_acquire $string	342	=item my $lock = cf::lock_acquire $string
230		343
231	Wait until the given lock is available and then acquires it and returns	344	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,	345	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	346	for example when the coroutine gets canceled), the lock is automatically
234	returned.	347	returned.
235		348
		349	Locks are *not* recursive, locking from the same coro twice results in a
		350	deadlocked coro.
		351
236	Lock names should begin with a unique identifier (for example, cf::map::find	352	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	353	uses map_find and cf::map::load uses map_load).
238		354
239	=cut	355	=item $locked = cf::lock_active $string
240		356
241	our %LOCK;	357	Return true if the lock is currently active, i.e. somebody has locked it.
		358
		359	=cut
		360
		361	our $LOCKS = new Coro::SemaphoreSet;
242		362
243	sub lock_wait($) {	363	sub lock_wait($) {
244	my ($key) = @_;	364	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	365	}
252		366
253	sub lock_acquire($) {	367	sub lock_acquire($) {
254	my ($key) = @_;	368	$LOCKS->guard ($_[0])
		369	}
255		370
256	# wait, to be sure we are not locked	371	sub lock_active($) {
257	lock_wait $key;	372	$LOCKS->count ($_[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	}	373	}
266		374
267	sub freeze_mainloop {	375	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	376	tick_inhibit_inc;
269		377
270	my $guard = Coro::guard {	378	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	379	}
		380
		381	=item cf::periodic $interval, $cb
		382
		383	Like EV::periodic, but randomly selects a starting point so that the actions
		384	get spread over timer.
		385
		386	=cut
		387
		388	sub periodic($$) {
		389	my ($interval, $cb) = @_;
		390
		391	my $start = rand List::Util::min 180, $interval;
		392
		393	EV::periodic $start, $interval, 0, $cb
		394	}
		395
		396	=item cf::get_slot $time[, $priority[, $name]]
		397
		398	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		399	This call blocks and returns only when you have at least C<$time> seconds
		400	of cpu time till the next tick. The slot is only valid till the next cede.
		401
		402	The optional C<$name> can be used to identify the job to run. It might be
		403	used for statistical purposes and should identify the same time-class.
		404
		405	Useful for short background jobs.
		406
		407	=cut
		408
		409	our @SLOT_QUEUE;
		410	our $SLOT_QUEUE;
		411
		412	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		413	$SLOT_QUEUE = Coro::async {
		414	$Coro::current->desc ("timeslot manager");
		415
		416	my $signal = new Coro::Signal;
		417
		418	while () {
		419	next_job:
		420	my $avail = cf::till_tick;
		421	if ($avail > 0.01) {
		422	for (0 .. $#SLOT_QUEUE) {
		423	if ($SLOT_QUEUE[$_][0] < $avail) {
		424	my $job = splice @SLOT_QUEUE, $_, 1, ();
		425	$job->[2]->send;
		426	Coro::cede;
		427	goto next_job;
		428	}
		429	}
		430	}
		431
		432	if (@SLOT_QUEUE) {
		433	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		434	push @cf::WAIT_FOR_TICK, $signal;
		435	$signal->wait;
		436	} else {
		437	Coro::schedule;
		438	}
272	};	439	}
273	$TICK_WATCHER->stop;	440	};
274	$guard	441
		442	sub get_slot($;$$) {
		443	return if tick_inhibit || $Coro::current == $Coro::main;
		444
		445	my ($time, $pri, $name) = @_;
		446
		447	$time = $TICK * .6 if $time > $TICK * .6;
		448	my $sig = new Coro::Signal;
		449
		450	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		451	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		452	$SLOT_QUEUE->ready;
		453	$sig->wait;
275	}	454	}
276		455
277	=item cf::async { BLOCK }	456	=item cf::async { BLOCK }
278		457
279	Currently the same as Coro::async_pool, meaning you cannot use	458	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		463
285	BEGIN { *async = \&Coro::async_pool }	464	BEGIN { *async = \&Coro::async_pool }
286		465
287	=item cf::sync_job { BLOCK }	466	=item cf::sync_job { BLOCK }
288		467
289	The design of crossfire+ requires that the main coro ($Coro::main) is	468	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	469	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	470	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		471	acceptable.
292		472
293	If it must be done, put the blocking parts into C<sync_job>. This will run	473	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	474	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	475	server will be frozen during this time, so the block should either finish
296	fast or be very important.	476	fast or be very important.
…		…
299		479
300	sub sync_job(&) {	480	sub sync_job(&) {
301	my ($job) = @_;	481	my ($job) = @_;
302		482
303	if ($Coro::current == $Coro::main) {	483	if ($Coro::current == $Coro::main) {
		484	my $time = EV::time;
		485
304	# this is the main coro, too bad, we have to block	486	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	487	# till the operation succeeds, freezing the server :/
306		488
307	# TODO: use suspend/resume instead	489	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	490
309	my $freeze_guard = freeze_mainloop;	491	my $freeze_guard = freeze_mainloop;
310		492
311	my $busy = 1;	493	my $busy = 1;
312	my @res;	494	my @res;
313		495
314	(async {	496	(async {
		497	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	498	@res = eval { $job->() };
316	warn $@ if $@;	499	warn $@ if $@;
317	undef $busy;	500	undef $busy;
318	})->prio (Coro::PRIO_MAX);	501	})->prio (Coro::PRIO_MAX);
319		502
320	while ($busy) {	503	while ($busy) {
321	Coro::cede or Event::one_event;	504	if (Coro::nready) {
		505	Coro::cede_notself;
		506	} else {
		507	EV::loop EV::LOOP_ONESHOT;
322	}	508	}
		509	}
		510
		511	my $time = EV::time - $time;
		512
		513	$TICK_START += $time; # do not account sync jobs to server load
323		514
324	wantarray ? @res : $res[0]	515	wantarray ? @res : $res[0]
325	} else {	516	} else {
326	# we are in another coroutine, how wonderful, everything just works	517	# we are in another coroutine, how wonderful, everything just works
327		518
…		…
347	$EXT_CORO{$coro+0} = $coro;	538	$EXT_CORO{$coro+0} = $coro;
348		539
349	$coro	540	$coro
350	}	541	}
351		542
352	sub write_runtime {	543	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		544
355	my $runtime = cf::localdir . "/runtime";	545	Executes the given code block with the given arguments in a seperate
		546	process, returning the results. Everything must be serialisable with
		547	Coro::Storable. May, of course, block. Note that the executed sub may
		548	never block itself or use any form of event handling.
356		549
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	550	=cut
358	or return;
359		551
360	my $value = $cf::RUNTIME + 90 + 10;	552	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	553	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		554
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	555	# we seemingly have to make a local copy of the whole thing,
365	and return;	556	# otherwise perl prematurely frees the stuff :/
		557	# TODO: investigate and fix (likely this will be rather laborious)
366		558
367	# always fsync - this file is important	559	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	560	reset_signals;
369	and return;	561	&$cb
		562	}, @args;
370		563
371	close $fh	564	wantarray ? @res : $res[-1]
372	or return;	565	}
373		566
374	aio_rename "$runtime~", $runtime	567	=item $coin = coin_from_name $name
375	and return;
376		568
		569	=cut
		570
		571	our %coin_alias = (
		572	"silver" => "silvercoin",
		573	"silvercoin" => "silvercoin",
		574	"silvercoins" => "silvercoin",
		575	"gold" => "goldcoin",
		576	"goldcoin" => "goldcoin",
		577	"goldcoins" => "goldcoin",
		578	"platinum" => "platinacoin",
		579	"platinumcoin" => "platinacoin",
		580	"platinumcoins" => "platinacoin",
		581	"platina" => "platinacoin",
		582	"platinacoin" => "platinacoin",
		583	"platinacoins" => "platinacoin",
		584	"royalty" => "royalty",
		585	"royalties" => "royalty",
		586	);
		587
		588	sub coin_from_name($) {
		589	$coin_alias{$_[0]}
		590	? cf::arch::find $coin_alias{$_[0]}
		591	: undef
		592	}
		593
		594	=item $value = cf::db_get $family => $key
		595
		596	Returns a single value from the environment database.
		597
		598	=item cf::db_put $family => $key => $value
		599
		600	Stores the given C<$value> in the family. It can currently store binary
		601	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		602
		603	=item $db = cf::db_table "name"
		604
		605	Create and/or open a new database table. The string must not be "db" and must be unique
		606	within each server.
		607
		608	=cut
		609
		610	sub db_table($) {
		611	my ($name) = @_;
		612	my $db = BDB::db_create $DB_ENV;
		613
		614	eval {
		615	$db->set_flags (BDB::CHKSUM);
		616
		617	utf8::encode $name;
		618	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		619	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		620	cf::cleanup "db_open(db): $!" if $!;
		621	};
		622	cf::cleanup "db_open(db): $@" if $@;
		623
		624	$db
		625	}
		626
		627	our $DB;
		628
		629	sub db_init {
		630	cf::sync_job {
		631	$DB ||= db_table "db";
		632	};
		633	}
		634
		635	sub db_get($$) {
		636	my $key = "$_[0]/$_[1]";
		637
		638	cf::sync_job {
		639	BDB::db_get $DB, undef, $key, my $data;
		640
		641	$! ? ()
		642	: $data
377	1	643	}
		644	}
		645
		646	sub db_put($$$) {
		647	BDB::dbreq_pri 4;
		648	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		649	}
		650
		651	=item cf::cache $id => [$paths...], $processversion => $process
		652
		653	Generic caching function that returns the value of the resource $id,
		654	caching and regenerating as required.
		655
		656	This function can block.
		657
		658	=cut
		659
		660	sub cache {
		661	my ($id, $src, $processversion, $process) = @_;
		662
		663	my $meta =
		664	join "\x00",
		665	$processversion,
		666	map {
		667	aio_stat $_
		668	and Carp::croak "$_: $!";
		669
		670	($_, (stat _)[7,9])
		671	} @$src;
		672
		673	my $dbmeta = db_get cache => "$id/meta";
		674	if ($dbmeta ne $meta) {
		675	# changed, we may need to process
		676
		677	my @data;
		678	my $md5;
		679
		680	for (0 .. $#$src) {
		681	0 <= aio_load $src->[$_], $data[$_]
		682	or Carp::croak "$src->[$_]: $!";
		683	}
		684
		685	# if processing is expensive, check
		686	# checksum first
		687	if (1) {
		688	$md5 =
		689	join "\x00",
		690	$processversion,
		691	map {
		692	cf::cede_to_tick;
		693	($src->[$_], Digest::MD5::md5_hex $data[$_])
		694	} 0.. $#$src;
		695
		696
		697	my $dbmd5 = db_get cache => "$id/md5";
		698	if ($dbmd5 eq $md5) {
		699	db_put cache => "$id/meta", $meta;
		700
		701	return db_get cache => "$id/data";
		702	}
		703	}
		704
		705	my $t1 = Time::HiRes::time;
		706	my $data = $process->(\@data);
		707	my $t2 = Time::HiRes::time;
		708
		709	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		710
		711	db_put cache => "$id/data", $data;
		712	db_put cache => "$id/md5" , $md5;
		713	db_put cache => "$id/meta", $meta;
		714
		715	return $data;
		716	}
		717
		718	db_get cache => "$id/data"
378	}	719	}
379		720
380	=item cf::datalog type => key => value, ...	721	=item cf::datalog type => key => value, ...
381		722
382	Log a datalog packet of the given type with the given key-value pairs.	723	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		735
395	#############################################################################	736	#############################################################################
396		737
397	=head2 ATTACHABLE OBJECTS	738	=head2 ATTACHABLE OBJECTS
398		739
399	Many objects in crossfire are so-called attachable objects. That means you can	740	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")	741	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	742	to it. All such attachable objects support the following methods.
402		743
403	In the following description, CLASS can be any of C<global>, C<object>	744	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	745	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	746	Deliantra).
406		747
407	=over 4	748	=over 4
408		749
409	=item $attachable->attach ($attachment, key => $value...)	750	=item $attachable->attach ($attachment, key => $value...)
410		751
…		…
454	=item cf::CLASS::attachment $name, ...	795	=item cf::CLASS::attachment $name, ...
455		796
456	Register an attachment by C<$name> through which attachable objects of the	797	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	798	given CLASS can refer to this attachment.
458		799
459	Some classes such as crossfire maps and objects can specify attachments	800	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.	801	that are attached at load/instantiate time, thus the need for a name.
461		802
462	These calls expect any number of the following handler/hook descriptions:	803	These calls expect any number of the following handler/hook descriptions:
463		804
464	=over 4	805	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	914	$registry = $CB_TYPE[$object_type] ||= [];
574		915
575	} elsif ($type eq "subtype") {	916	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	917	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	918	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	919	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		920
580	} elsif ($type eq "package") {	921	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	922	my $pkg = shift @arg;
582		923
583	while (my ($name, $id) = each %cb_id) {	924	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	953	_attach $registry, $klass, @attach;
613	}	954	}
614		955
615	$obj->{$name} = \%arg;	956	$obj->{$name} = \%arg;
616	} else {	957	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	958	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	959	}
619		960
620	$obj->{_attachment}{$name} = undef;	961	$obj->{_attachment}{$name} = undef;
621	}	962	}
622		963
…		…
624	if (ref $_[0]) {	965	if (ref $_[0]) {
625	_object_attach @_;	966	_object_attach @_;
626	} else {	967	} else {
627	_attach shift->_attach_registry, @_;	968	_attach shift->_attach_registry, @_;
628	}	969	}
		970	_recalc_want;
629	};	971	};
630		972
631	# all those should be optimised	973	# all those should be optimised
632	sub cf::attachable::detach {	974	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	975	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	978	delete $obj->{_attachment}{$name};
637	reattach ($obj);	979	reattach ($obj);
638	} else {	980	} else {
639	Carp::croak "cannot, currently, detach class attachments";	981	Carp::croak "cannot, currently, detach class attachments";
640	}	982	}
		983	_recalc_want;
641	};	984	};
642		985
643	sub cf::attachable::attached {	986	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	987	my ($obj, $name) = @_;
645		988
…		…
660	";	1003	";
661	die if $@;	1004	die if $@;
662	}	1005	}
663		1006
664	our $override;	1007	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1008	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1009
667	sub override {	1010	sub override {
668	$override = 1;	1011	$override = 1;
669	@invoke_results = ();	1012	@INVOKE_RESULTS = (@_);
670	}	1013	}
671		1014
672	sub do_invoke {	1015	sub do_invoke {
673	my $event = shift;	1016	my $event = shift;
674	my $callbacks = shift;	1017	my $callbacks = shift;
675		1018
676	@invoke_results = ();	1019	@INVOKE_RESULTS = ();
677		1020
678	local $override;	1021	local $override;
679		1022
680	for (@$callbacks) {	1023	for (@$callbacks) {
681	eval { &{$_->[1]} };	1024	eval { &{$_->[1]} };
…		…
690	}	1033	}
691		1034
692	0	1035	0
693	}	1036	}
694		1037
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1038	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1039
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1040	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1041
699	Generate an object-specific event with the given arguments.	1042	Generate an object-specific event with the given arguments.
700		1043
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1044	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	1045	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1046	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1047
705	=back	1048	=back
706		1049
707	=cut	1050	=cut
708		1051
709	#############################################################################	1052	#############################################################################
710	# object support	1053	# object support
		1054
		1055	sub _object_equal($$);
		1056	sub _object_equal($$) {
		1057	my ($a, $b) = @_;
		1058
		1059	return 0 unless (ref $a) eq (ref $b);
		1060
		1061	if ("HASH" eq ref $a) {
		1062	my @ka = keys %$a;
		1063	my @kb = keys %$b;
		1064
		1065	return 0 if @ka != @kb;
		1066
		1067	for (0 .. $#ka) {
		1068	return 0 unless $ka[$_] eq $kb[$_];
		1069	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1070	}
		1071
		1072	} elsif ("ARRAY" eq ref $a) {
		1073
		1074	return 0 if @$a != @$b;
		1075
		1076	for (0 .. $#$a) {
		1077	return 0 unless _object_equal $a->[$_], $b->[$_];
		1078	}
		1079
		1080	} elsif ($a ne $b) {
		1081	return 0;
		1082	}
		1083
		1084	1
		1085	}
		1086
		1087	our $SLOW_MERGES;#d#
		1088	sub _can_merge {
		1089	my ($ob1, $ob2) = @_;
		1090
		1091	++$SLOW_MERGES;#d#
		1092
		1093	# we do the slow way here
		1094	return _object_equal $ob1, $ob2
		1095	}
711		1096
712	sub reattach {	1097	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1098	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1099	my ($obj) = @_;
715		1100
		1101	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1102	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1103
718	my $registry = $obj->registry;	1104	my $registry = $obj->registry;
719		1105
720	@$registry = ();	1106	@$registry = ();
721		1107
…		…
736	cf::attachable->attach (	1122	cf::attachable->attach (
737	prio => -1000000,	1123	prio => -1000000,
738	on_instantiate => sub {	1124	on_instantiate => sub {
739	my ($obj, $data) = @_;	1125	my ($obj, $data) = @_;
740		1126
741	$data = from_json $data;	1127	$data = decode_json $data;
742		1128
743	for (@$data) {	1129	for (@$data) {
744	my ($name, $args) = @$_;	1130	my ($name, $args) = @$_;
745		1131
746	$obj->attach ($name, %{$args || {} });	1132	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1148	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1149	my ($filename, $rdata, $objs) = @_;
764		1150
765	sync_job {	1151	sync_job {
766	if (length $$rdata) {	1152	if (length $$rdata) {
		1153	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1154	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1155	$decname, length $$rdata, scalar @$objs;
769		1156
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1157	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1158	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1159	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1160	if ($cf::USE_FSYNC) {
		1161	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1162	aio_fsync $fh;
		1163	}
774	close $fh;	1164	aio_close $fh;
775		1165
776	if (@$objs) {	1166	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1167	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1168	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1169	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1170	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1171	if ($cf::USE_FSYNC) {
		1172	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1173	aio_fsync $fh;
		1174	}
782	close $fh;	1175	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1176	aio_rename "$filename.pst~", "$filename.pst";
784	}	1177	}
785	} else {	1178	} else {
786	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
787	}	1180	}
788		1181
789	aio_rename "$filename~", $filename;	1182	aio_rename "$filename~", $filename;
		1183
		1184	$filename =~ s%/[^/]+$%%;
		1185	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1186	} else {
791	warn "FATAL: $filename~: $!\n";	1187	warn "unable to save objects: $filename~: $!\n";
792	}	1188	}
793	} else {	1189	} else {
794	aio_unlink $filename;	1190	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1191	aio_unlink "$filename.pst";
796	}	1192	}
797	}	1193	};
798	}	1194	}
799		1195
800	sub object_freezer_as_string {	1196	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1197	my ($rdata, $objs) = @_;
802		1198
…		…
814	or return;	1210	or return;
815		1211
816	unless (aio_stat "$filename.pst") {	1212	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1213	(aio_load "$filename.pst", $av) >= 0
818	or return;	1214	or return;
		1215
819	$av = eval { (Storable::thaw $av)->{objs} };	1216	my $st = eval { Coro::Storable::thaw $av };
		1217	$av = $st->{objs};
820	}	1218	}
821		1219
		1220	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1221	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1222	$decname, length $data, scalar @{$av || []};
		1223
824	return ($data, $av);	1224	($data, $av)
825	}	1225	}
		1226
		1227	=head2 COMMAND CALLBACKS
		1228
		1229	=over 4
		1230
		1231	=cut
826		1232
827	#############################################################################	1233	#############################################################################
828	# command handling &c	1234	# command handling &c
829		1235
830	=item cf::register_command $name => \&callback($ob,$args);	1236	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1249	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1250	}
845		1251
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1252	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1253
848	Register a callbackf ro execution when the client sends an extcmd packet.	1254	Register a callback for execution when the client sends an (synchronous)
		1255	extcmd packet. Ext commands will be processed in the order they are
		1256	received by the server, like other user commands. The first argument is
		1257	the logged-in player. Ext commands can only be processed after a player
		1258	has logged in successfully.
849		1259
850	If the callback returns something, it is sent back as if reply was being	1260	If the callback returns something, it is sent back as if reply was being
851	called.	1261	called.
852		1262
		1263	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1264
		1265	Register a callback for execution when the client sends an (asynchronous)
		1266	exticmd packet. Exti commands are processed by the server as soon as they
		1267	are received, i.e. out of order w.r.t. other commands. The first argument
		1268	is a client socket. Exti commands can be received anytime, even before
		1269	log-in.
		1270
		1271	If the callback returns something, it is sent back as if reply was being
		1272	called.
		1273
853	=cut	1274	=cut
854		1275
855	sub register_extcmd {	1276	sub register_extcmd {
856	my ($name, $cb) = @_;	1277	my ($name, $cb) = @_;
857		1278
858	$EXTCMD{$name} = $cb;	1279	$EXTCMD{$name} = $cb;
859	}	1280	}
		1281
		1282	sub register_exticmd {
		1283	my ($name, $cb) = @_;
		1284
		1285	$EXTICMD{$name} = $cb;
		1286	}
		1287
		1288	use File::Glob ();
860		1289
861	cf::player->attach (	1290	cf::player->attach (
862	on_command => sub {	1291	on_command => sub {
863	my ($pl, $name, $params) = @_;	1292	my ($pl, $name, $params) = @_;
864		1293
…		…
872	cf::override;	1301	cf::override;
873	},	1302	},
874	on_extcmd => sub {	1303	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1304	my ($pl, $buf) = @_;
876		1305
877	my $msg = eval { from_json $buf };	1306	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1307
879	if (ref $msg) {	1308	if (ref $msg) {
		1309	my ($type, $reply, @payload) =
		1310	"ARRAY" eq ref $msg
		1311	? @$msg
		1312	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1313
		1314	my @reply;
		1315
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1316	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1317	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1318	}
		1319
		1320	$pl->ext_reply ($reply, @reply)
		1321	if $reply;
		1322
885	} else {	1323	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1324	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1325	}
888		1326
889	cf::override;	1327	cf::override;
890	},	1328	},
891	);	1329	);
892		1330
		1331	# "readahead" all extensions
893	sub load_extension {	1332	sub cache_extensions {
894	my ($path) = @_;	1333	my $grp = IO::AIO::aio_group;
895		1334
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1335	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1336	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1337	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	}	1338	}
921	die $@;
922	}	1339	};
923		1340
924	push @EXTS, $pkg;	1341	$grp
925	}	1342	}
926		1343
927	sub load_extensions {	1344	sub load_extensions {
		1345	cf::sync_job {
		1346	my %todo;
		1347
928	for my $ext (<$LIBDIR/*.ext>) {	1348	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1349	next unless -r $path;
930	eval {	1350
931	load_extension $ext;	1351	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1352	my $base = $1;
		1353	my $pkg = $1;
		1354	$pkg =~ s/[^[:word:]]/_/g;
		1355	$pkg = "ext::$pkg";
		1356
		1357	open my $fh, "<:utf8", $path
		1358	or die "$path: $!";
		1359
		1360	my $source = do { local $/; <$fh> };
		1361
		1362	my %ext = (
		1363	path => $path,
		1364	base => $base,
		1365	pkg => $pkg,
		1366	);
		1367
		1368	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1369	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1370
		1371	$ext{source} =
		1372	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1373	. "#line 1 \"$path\"\n{\n"
		1374	. $source
		1375	. "\n};\n1";
		1376
		1377	$todo{$base} = \%ext;
		1378	}
		1379
		1380	my %done;
		1381	while (%todo) {
		1382	my $progress;
		1383
		1384	while (my ($k, $v) = each %todo) {
		1385	for (split /,\s*/, $v->{meta}{depends}) {
		1386	goto skip
		1387	unless exists $done{$_};
		1388	}
		1389
		1390	warn "... loading '$k' into '$v->{pkg}'\n";
		1391
		1392	unless (eval $v->{source}) {
		1393	my $msg = $@ ? "$v->{path}: $@\n"
		1394	: "$v->{base}: extension inactive.\n";
		1395
		1396	if (exists $v->{meta}{mandatory}) {
		1397	warn $msg;
		1398	cf::cleanup "mandatory extension failed to load, exiting.";
		1399	}
		1400
		1401	warn $msg;
		1402	}
		1403
		1404	$done{$k} = delete $todo{$k};
		1405	push @EXTS, $v->{pkg};
		1406	$progress = 1;
932	1	1407	}
933	} or warn "$ext not loaded: $@";	1408
		1409	skip:
		1410	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1411	unless $progress;
		1412	}
934	}	1413	};
935	}	1414	}
936		1415
937	#############################################################################	1416	#############################################################################
938		1417
		1418	=back
		1419
939	=head2 CORE EXTENSIONS	1420	=head2 CORE EXTENSIONS
940		1421
941	Functions and methods that extend core crossfire objects.	1422	Functions and methods that extend core deliantra objects.
942		1423
943	=cut	1424	=cut
944		1425
945	package cf::player;	1426	package cf::player;
946		1427
…		…
948		1429
949	=head3 cf::player	1430	=head3 cf::player
950		1431
951	=over 4	1432	=over 4
952		1433
		1434	=item cf::player::num_playing
		1435
		1436	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1437
		1438	=cut
		1439
		1440	sub num_playing {
		1441	scalar grep
		1442	$_->ob->map
		1443	&& !$_->hidden
		1444	&& !$_->ob->flag (cf::FLAG_WIZ),
		1445	cf::player::list
		1446	}
		1447
953	=item cf::player::find $login	1448	=item cf::player::find $login
954		1449
955	Returns the given player object, loading it if necessary (might block).	1450	Returns the given player object, loading it if necessary (might block).
956		1451
957	=cut	1452	=cut
958		1453
959	sub playerdir($) {	1454	sub playerdir($) {
960	cf::localdir	1455	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1456	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1457	}
966		1458
967	sub path($) {	1459	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1460	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1470
979	sub exists($) {	1471	sub exists($) {
980	my ($login) = @_;	1472	my ($login) = @_;
981		1473
982	$cf::PLAYER{$login}	1474	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1475	or !aio_stat path $login
984	}	1476	}
985		1477
986	sub find($) {	1478	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1479	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1480	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1487	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1488	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1489	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1490	aio_unlink +(playerdir $login) . "/$login.pl";
999		1491
1000	my $pl = load_pl path $login	1492	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1493	or return;
		1494
		1495	my $pl = cf::player::load_pl $f
		1496	or return;
		1497
		1498	local $cf::PLAYER_LOADING{$login} = $pl;
		1499	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1500	$cf::PLAYER{$login} = $pl
1003	}	1501	}
1004	}	1502	}
1005	}	1503	}
1006		1504
…		…
1015	return if $pl->{deny_save};	1513	return if $pl->{deny_save};
1016		1514
1017	aio_mkdir playerdir $pl, 0770;	1515	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1516	$pl->{last_save} = $cf::RUNTIME;
1019		1517
		1518	cf::get_slot 0.01;
		1519
1020	$pl->save_pl ($path);	1520	$pl->save_pl ($path);
1021	Coro::cede;	1521	cf::cede_to_tick;
1022	}	1522	}
1023		1523
1024	sub new($) {	1524	sub new($) {
1025	my ($login) = @_;	1525	my ($login) = @_;
1026		1526
…		…
1032	$cf::PLAYER{$login} = $self;	1532	$cf::PLAYER{$login} = $self;
1033		1533
1034	$self	1534	$self
1035	}	1535	}
1036		1536
		1537	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1538
		1539	=cut
		1540
		1541	sub send_msg {
		1542	my $ns = shift->ns
		1543	or return;
		1544	$ns->send_msg (@_);
		1545	}
		1546
1037	=item $pl->quit_character	1547	=item $pl->quit_character
1038		1548
1039	Nukes the player without looking back. If logged in, the connection will	1549	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1550	be destroyed. May block for a long time.
1041		1551
…		…
1045	my ($pl) = @_;	1555	my ($pl) = @_;
1046		1556
1047	my $name = $pl->ob->name;	1557	my $name = $pl->ob->name;
1048		1558
1049	$pl->{deny_save} = 1;	1559	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1560	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1561
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1562	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1563	$pl->deactivate;
		1564	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1565	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1566	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1567	$pl->ns->destroy if $pl->ns;
1056		1568
1057	my $path = playerdir $pl;	1569	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1570	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1600	while and may block, so not sync_job-capable, ever.
1089		1601
1090	=cut	1602	=cut
1091		1603
1092	sub list_logins {	1604	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1605	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1606	or return [];
1095		1607
1096	my @logins;	1608	my @logins;
1097		1609
1098	for my $login (@$dirs) {	1610	for my $login (@$dirs) {
		1611	my $path = path $login;
		1612
		1613	# a .pst is a dead give-away for a valid player
		1614	# if no pst file found, open and chekc for blocked users
		1615	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1616	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1617	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1618	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1619	}
1102		1620
1103	utf8::decode $login;	1621	utf8::decode $login;
1104	push @logins, $login;	1622	push @logins, $login;
1105	}	1623	}
1106		1624
…		…
1133	}	1651	}
1134		1652
1135	\@paths	1653	\@paths
1136	}	1654	}
1137		1655
		1656	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1657
		1658	Expand deliantra pod fragments into protocol xml.
		1659
1138	=item $player->ext_reply ($msgid, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1139		1661
1140	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1141		1663
1142	=cut	1664	=cut
1143		1665
1144	sub ext_reply($$%) {	1666	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1146		1668
1147	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1670	}
1151		1671
1152	=item $player->ext_event ($type, %msg)	1672	=item $player->ext_msg ($type, @msg)
1153		1673
1154	Sends an ext event to the client.	1674	Sends an ext event to the client.
1155		1675
1156	=cut	1676	=cut
1157		1677
1158	sub ext_event($$%) {	1678	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1679	my ($self, $type, @msg) = @_;
1160		1680
1161	$self->ns->ext_event ($type, %msg);	1681	$self->ns->ext_msg ($type, @msg);
1162	}	1682	}
1163		1683
1164	=head3 cf::region	1684	=head3 cf::region
1165		1685
1166	=over 4	1686	=over 4
…		…
1169		1689
1170	package cf::region;	1690	package cf::region;
1171		1691
1172	=item cf::region::find_by_path $path	1692	=item cf::region::find_by_path $path
1173		1693
1174	Tries to decuce the probable region for a map knowing only its path.	1694	Tries to decuce the likely region for a map knowing only its path.
1175		1695
1176	=cut	1696	=cut
1177		1697
1178	sub find_by_path($) {	1698	sub find_by_path($) {
1179	my ($path) = @_;	1699	my ($path) = @_;
1180		1700
1181	my ($match, $specificity);	1701	my ($match, $specificity);
1182		1702
1183	for my $region (list) {	1703	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1704	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1705	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1706	if $region->specificity > $specificity;
1187	}	1707	}
1188	}	1708	}
1189		1709
…		…
1210	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1212		1732
1213	sub generate_random_map {	1733	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1734	my ($self, $rmp) = @_;
		1735
		1736	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1737
1215	# mit "rum" bekleckern, nicht	1738	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1739	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1740	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1741	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1742	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1776	my ($self, $merge) = @_;
1254		1777
1255	# we have to keep some variables in memory intact	1778	# we have to keep some variables in memory intact
1256	local $self->{path};	1779	local $self->{path};
1257	local $self->{load_path};	1780	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1781
1261	$self->SUPER::thawer_merge ($merge);	1782	$self->SUPER::thawer_merge ($merge);
1262	}	1783	}
1263		1784
1264	sub normalise {	1785	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1832	$self->init; # pass $1 etc.
1312	return $self;	1833	return $self;
1313	}	1834	}
1314	}	1835	}
1315		1836
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1837	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1838	()
1318	}	1839	}
1319		1840
1320	sub init {	1841	sub init {
1321	my ($self) = @_;	1842	my ($self) = @_;
…		…
1336		1857
1337	# the original (read-only) location	1858	# the original (read-only) location
1338	sub load_path {	1859	sub load_path {
1339	my ($self) = @_;	1860	my ($self) = @_;
1340		1861
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1862	"$MAPDIR/$self->{path}.map"
1342	}	1863	}
1343		1864
1344	# the temporary/swap location	1865	# the temporary/swap location
1345	sub save_path {	1866	sub save_path {
1346	my ($self) = @_;	1867	my ($self) = @_;
1347		1868
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1869	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1870	"$TMPDIR/$path.map"
1350	}	1871	}
1351		1872
1352	# the unique path, undef == no special unique path	1873	# the unique path, undef == no special unique path
1353	sub uniq_path {	1874	sub uniq_path {
1354	my ($self) = @_;	1875	my ($self) = @_;
1355		1876
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1877	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1878	"$UNIQUEDIR/$path"
1358	}	1879	}
1359		1880
1360	# and all this just because we cannot iterate over	1881	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1882	my ($self) = @_;
1364		1883
1365	$_->change_map_light ($change)	1884	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1885
		1886	$self->do_decay_objects;
1367	}	1887	}
1368		1888
1369	sub unlink_save {	1889	sub unlink_save {
1370	my ($self) = @_;	1890	my ($self) = @_;
1371		1891
…		…
1376		1896
1377	sub load_header_from($) {	1897	sub load_header_from($) {
1378	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1379		1899
1380	utf8::encode $path;	1900	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1902	or return;
		1903
		1904	$self->_load_header ($f)
		1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1386		1909
1387	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1388		1911
1389	1	1912	1
1390	}	1913	}
…		…
1429	$self->load_header_orig	1952	$self->load_header_orig
1430	or return;	1953	or return;
1431	$self->prepare_orig;	1954	$self->prepare_orig;
1432	}	1955	}
1433		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
1434	$self->default_region (cf::region::find_by_path $self->{path})	1960	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1961	unless $self->default_region;
1436		1962
1437	1	1963	1
1438	}	1964	}
…		…
1441	sub find {	1967	sub find {
1442	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1443		1969
1444	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1445		1971
		1972	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1973	my $guard2 = cf::lock_acquire "map_find:$path";
1447		1974
1448	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	1976	my $map = new_from_path cf::map $path
1451	or return;	1977	or return;
1452		1978
1453	$map->{last_save} = $cf::RUNTIME;	1979	$map->{last_save} = $cf::RUNTIME;
1454		1980
1455	$map->load_header	1981	$map->load_header
1456	or return;	1982	or return;
1457		1983
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1984	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1985	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1986	#$cf::WAIT_FOR_TICK->wait;
		1987	undef $guard2;
		1988	undef $guard1;
1461	$map->reset;	1989	$map->reset;
1462	undef $guard;
1463	return find $path;	1990	return find $path;
1464	}	1991	}
1465		1992
1466	$cf::MAP{$path} = $map	1993	$cf::MAP{$path} = $map
1467	}	1994	}
…		…
1474	my ($self) = @_;	2001	my ($self) = @_;
1475		2002
1476	local $self->{deny_reset} = 1; # loading can take a long time	2003	local $self->{deny_reset} = 1; # loading can take a long time
1477		2004
1478	my $path = $self->{path};	2005	my $path = $self->{path};
		2006
		2007	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2008	my $guard = cf::lock_acquire "map_data:$path";
1480		2009
		2010	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2011	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2012
1483	$self->in_memory (cf::MAP_LOADING);	2013	$self->in_memory (cf::MAP_LOADING);
1484		2014
1485	$self->alloc;	2015	$self->alloc;
1486		2016
1487	$self->pre_load;	2017	$self->pre_load;
1488	Coro::cede;	2018	cf::cede_to_tick;
1489		2019
1490	$self->_load_objects ($self->{load_path}, 1)	2020	my $f = new_from_file cf::object::thawer $self->{load_path};
		2021	$f->skip_block;
		2022	$self->_load_objects ($f)
1491	or return;	2023	or return;
1492		2024
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2025	$self->post_load_original
1494	if delete $self->{load_original};	2026	if delete $self->{load_original};
1495		2027
1496	if (my $uniq = $self->uniq_path) {	2028	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2029	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2030	unless (aio_stat $uniq) {
		2031	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2032	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2033	$self->_load_objects ($f);
		2034	$f->resolve_delayed_derefs;
		2035	}
1501	}	2036	}
1502	}	2037	}
1503		2038
1504	Coro::cede;	2039	$f->resolve_delayed_derefs;
		2040
		2041	cf::cede_to_tick;
1505	# now do the right thing for maps	2042	# now do the right thing for maps
1506	$self->link_multipart_objects;	2043	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($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)	2044	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2045	unless $self->difficulty;
1517	Coro::cede;	2046	cf::cede_to_tick;
		2047
		2048	unless ($self->{deny_activate}) {
		2049	$self->decay_objects;
		2050	$self->fix_auto_apply;
		2051	$self->update_buttons;
		2052	cf::cede_to_tick;
1518	$self->activate;	2053	$self->activate;
1519	Coro::cede;	2054	}
		2055
		2056	$self->{last_save} = $cf::RUNTIME;
		2057	$self->last_access ($cf::RUNTIME);
		2058
		2059	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2060	}
1521		2061
1522	$self->post_load;	2062	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2063	}
1527		2064
1528	sub customise_for {	2065	sub customise_for {
1529	my ($self, $ob) = @_;	2066	my ($self, $ob) = @_;
1530		2067
1531	return find "~" . $ob->name . "/" . $self->{path}	2068	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2069	if $self->per_player;
1533		2070
		2071	# return find "?party/" . $ob->name . "/" . $self->{path}
		2072	# if $self->per_party;
		2073
1534	$self	2074	$self
1535	}	2075	}
1536		2076
1537	# find and load all maps in the 3x3 area around a map	2077	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2078	sub load_neighbours {
1539	my ($map) = @_;	2079	my ($map) = @_;
1540		2080
1541	my @diag; # diagonal neighbours	2081	my @neigh; # diagonal neighbours
1542		2082
1543	for (0 .. 3) {	2083	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2084	my $neigh = $map->tile_path ($_)
1545	or next;	2085	or next;
1546	$neigh = find $neigh, $map	2086	$neigh = find $neigh, $map
1547	or next;	2087	or next;
1548	$neigh->load;	2088	$neigh->load;
1549		2089
		2090	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2091	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2092	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2093	}
1553		2094
1554	for (@diag) {	2095	for (grep defined $_->[0], @neigh) {
		2096	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2097	my $neigh = find $path, $origin
1556	or next;	2098	or next;
1557	$neigh->load;	2099	$neigh->load;
1558	}	2100	}
1559	}	2101	}
1560		2102
…		…
1565	}	2107	}
1566		2108
1567	sub do_load_sync {	2109	sub do_load_sync {
1568	my ($map) = @_;	2110	my ($map) = @_;
1569		2111
		2112	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2113	if $Coro::current == $Coro::main;
		2114
1570	cf::sync_job { $map->load };	2115	cf::sync_job { $map->load };
1571	}	2116	}
1572		2117
1573	our %MAP_PREFETCH;	2118	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2119	our $MAP_PREFETCHER = undef;
1575		2120
1576	sub find_async {	2121	sub find_async {
1577	my ($path, $origin) = @_;	2122	my ($path, $origin, $load) = @_;
1578		2123
1579	$path = normalise $path, $origin && $origin->{path};	2124	$path = normalise $path, $origin && $origin->{path};
1580		2125
1581	if (my $map = $cf::MAP{$path}) {	2126	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2127	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2128	}
1584		2129
1585	undef $MAP_PREFETCH{$path};	2130	$MAP_PREFETCH{$path} |= $load;
		2131
1586	$MAP_PREFETCHER ||= cf::async {	2132	$MAP_PREFETCHER ||= cf::async {
		2133	$Coro::current->{desc} = "map prefetcher";
		2134
1587	while (%MAP_PREFETCH) {	2135	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2136	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2137	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2138	$map->load if $v;
		2139	}
1592		2140
1593	delete $MAP_PREFETCH{$path};	2141	delete $MAP_PREFETCH{$k};
1594	}	2142	}
1595	}	2143	}
1596	undef $MAP_PREFETCHER;	2144	undef $MAP_PREFETCHER;
1597	};	2145	};
1598	$MAP_PREFETCHER->prio (6);	2146	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2149	}
1602		2150
1603	sub save {	2151	sub save {
1604	my ($self) = @_;	2152	my ($self) = @_;
1605		2153
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2154	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2155
1608	$self->{last_save} = $cf::RUNTIME;	2156	$self->{last_save} = $cf::RUNTIME;
1609		2157
1610	return unless $self->dirty;	2158	return unless $self->dirty;
1611		2159
…		…
1617	return if $self->{deny_save};	2165	return if $self->{deny_save};
1618		2166
1619	local $self->{last_access} = $self->last_access;#d#	2167	local $self->{last_access} = $self->last_access;#d#
1620		2168
1621	cf::async {	2169	cf::async {
		2170	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2171	$_->contr->save for $self->players;
1623	};	2172	};
		2173
		2174	cf::get_slot 0.02;
1624		2175
1625	if ($uniq) {	2176	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2177	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2178	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2179	} else {
…		…
1634	my ($self) = @_;	2185	my ($self) = @_;
1635		2186
1636	# save first because save cedes	2187	# save first because save cedes
1637	$self->save;	2188	$self->save;
1638		2189
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2191
1641	return if $self->players;	2192	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2193	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2194	return if $self->{deny_save};
1644		2195
		2196	$self->in_memory (cf::MAP_SWAPPED);
		2197
		2198	$self->deactivate;
		2199	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2200	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2201	}
1648		2202
1649	sub reset_at {	2203	sub reset_at {
1650	my ($self) = @_;	2204	my ($self) = @_;
1651		2205
1652	# TODO: safety, remove and allow resettable per-player maps	2206	# 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};	2207	return 1e99 if $self->{deny_reset};
1655		2208
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2209	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2210	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2211
…		…
1669	my ($self) = @_;	2222	my ($self) = @_;
1670		2223
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2224	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2225
1673	return if $self->players;	2226	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2227
1676	warn "resetting map ", $self->path;#d#	2228	warn "resetting map ", $self->path;
1677		2229
1678	$self->in_memory (cf::MAP_SWAPPED);	2230	$self->in_memory (cf::MAP_SWAPPED);
1679		2231
1680	# need to save uniques path	2232	# need to save uniques path
1681	unless ($self->{deny_save}) {	2233	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2237	if $uniq;
1686	}	2238	}
1687		2239
1688	delete $cf::MAP{$self->path};	2240	delete $cf::MAP{$self->path};
1689		2241
		2242	$self->deactivate;
		2243	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2244	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2245
1694	$self->unlink_save;	2246	$self->unlink_save;
1695	$self->destroy;	2247	$self->destroy;
1696	}	2248	}
1697		2249
1698	my $nuke_counter = "aaaa";	2250	my $nuke_counter = "aaaa";
1699		2251
1700	sub nuke {	2252	sub nuke {
1701	my ($self) = @_;	2253	my ($self) = @_;
1702		2254
		2255	{
		2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2257
1703	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1704		2259
1705	$self->unlink_save;	2260	$self->unlink_save;
1706		2261
1707	bless $self, "cf::map";	2262	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2263	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2264	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2265	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2266	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2267
1713	$cf::MAP{$self->path} = $self;	2268	$cf::MAP{$self->path} = $self;
		2269	}
1714		2270
1715	$self->reset; # polite request, might not happen	2271	$self->reset; # polite request, might not happen
		2272	}
		2273
		2274	=item $maps = cf::map::tmp_maps
		2275
		2276	Returns an arrayref with all map paths of currently instantiated and saved
		2277	maps. May block.
		2278
		2279	=cut
		2280
		2281	sub tmp_maps() {
		2282	[
		2283	map {
		2284	utf8::decode $_;
		2285	/\.map$/
		2286	? normalise $_
		2287	: ()
		2288	} @{ aio_readdir $TMPDIR or [] }
		2289	]
		2290	}
		2291
		2292	=item $maps = cf::map::random_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	random maps. May block.
		2296
		2297	=cut
		2298
		2299	sub random_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise "?random/$_"
		2305	: ()
		2306	} @{ aio_readdir $RANDOMDIR or [] }
		2307	]
1716	}	2308	}
1717		2309
1718	=item cf::map::unique_maps	2310	=item cf::map::unique_maps
1719		2311
1720	Returns an arrayref of paths of all shared maps that have	2312	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2313	instantiated unique items. May block.
1722		2314
1723	=cut	2315	=cut
1724		2316
1725	sub unique_maps() {	2317	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2318	[
1727	or return;	2319	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2320	utf8::decode $_;
1733	next if /\.pst$/;	2321	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2322	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2323	? ()
1736	push @paths, cf::map::normalise $_;	2324	: normalise $_
		2325	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2326	]
1738
1739	\@paths
1740	}	2327	}
1741
1742	package cf;
1743		2328
1744	=back	2329	=back
1745		2330
1746	=head3 cf::object	2331	=head3 cf::object
1747		2332
…		…
1751		2336
1752	=over 4	2337	=over 4
1753		2338
1754	=item $ob->inv_recursive	2339	=item $ob->inv_recursive
1755		2340
1756	Returns the inventory of the object _and_ their inventories, recursively.	2341	Returns the inventory of the object I<and> their inventories, recursively,
		2342	but I<not> the object itself.
1757		2343
1758	=cut	2344	=cut
1759		2345
1760	sub inv_recursive_;	2346	sub inv_recursive_;
1761	sub inv_recursive_ {	2347	sub inv_recursive_ {
…		…
1764		2350
1765	sub inv_recursive {	2351	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2352	inv_recursive_ inv $_[0]
1767	}	2353	}
1768		2354
		2355	=item $ref = $ob->ref
		2356
		2357	Creates and returns a persistent reference to an object that can be stored as a string.
		2358
		2359	=item $ob = cf::object::deref ($refstring)
		2360
		2361	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2362	even if the object actually exists. May block.
		2363
		2364	=cut
		2365
		2366	sub deref {
		2367	my ($ref) = @_;
		2368
		2369	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2370	my ($uuid, $name) = ($1, $2);
		2371	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2372	or return;
		2373	$pl->ob->uuid eq $uuid
		2374	or return;
		2375
		2376	$pl->ob
		2377	} else {
		2378	warn "$ref: cannot resolve object reference\n";
		2379	undef
		2380	}
		2381	}
		2382
1769	package cf;	2383	package cf;
1770		2384
1771	=back	2385	=back
1772		2386
1773	=head3 cf::object::player	2387	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2393	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	2394	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2395	dialogue with the given NPC character.
1782		2396
1783	=cut	2397	=cut
		2398
		2399	our $SAY_CHANNEL = {
		2400	id => "say",
		2401	title => "Map",
		2402	reply => "say ",
		2403	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2404	};
		2405
		2406	our $CHAT_CHANNEL = {
		2407	id => "chat",
		2408	title => "Chat",
		2409	reply => "chat ",
		2410	tooltip => "Player chat and shouts, global to the server.",
		2411	};
1784		2412
1785	# rough implementation of a future "reply" method that works	2413	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2414	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2415	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2416	sub cf::object::player::reply($$$;$) {
…		…
1790		2418
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2419	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2420
1793	if ($self->{record_replies}) {	2421	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2422	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2423
1795	} else {	2424	} else {
		2425	my $pl = $self->contr;
		2426
		2427	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2428	my $dialog = $pl->{npc_dialog};
		2429	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2430
		2431	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2432	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2433	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2434	}
1798	}	2435	}
		2436	}
		2437
		2438	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2439
		2440	=cut
		2441
		2442	sub cf::object::send_msg {
		2443	my $pl = shift->contr
		2444	or return;
		2445	$pl->send_msg (@_);
1799	}	2446	}
1800		2447
1801	=item $player_object->may ("access")	2448	=item $player_object->may ("access")
1802		2449
1803	Returns wether the given player is authorized to access resource "access"	2450	Returns wether the given player is authorized to access resource "access"
…		…
1816		2463
1817	=item $player_object->enter_link	2464	=item $player_object->enter_link
1818		2465
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2466	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2467
1821	The player should be reasonably safe there for short amounts of time. You	2468	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.	2469	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2470	though, as the palyer cannot control the character while it is on the link
		2471	map.
1823		2472
1824	Will never block.	2473	Will never block.
1825		2474
1826	=item $player_object->leave_link ($map, $x, $y)	2475	=item $player_object->leave_link ($map, $x, $y)
1827		2476
…		…
1850	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
1851		2500
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2502
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2504	if $self->map && $self->map->{path} ne "{link}";
1856		2505
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2507	}
1859		2508
1860	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1862		2513
1863	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1864		2515
1865	unless ($map) {	2516	unless ($map) {
1866	# restore original map position	2517	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1883		2534
1884	$map->load;	2535	$map->load;
1885	$map->load_diag;	2536	$map->load_neighbours;
1886		2537
1887	return unless $self->contr->active;	2538	return unless $self->contr->active;
		2539	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1888	$self->activate_recursive;	2540	$self->activate_recursive;
1889		2541
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2542	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2543	$self->enter_map ($map, $x, $y);
1892	}	2544	}
1893		2545
1894	cf::player->attach (	2546	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2547
1898	# abort map switching before logout	2548	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2549	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2550	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2551	the new (success) or old (failed) map position. In either case, $done will
1902	};	2552	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2553
1908	# try to abort aborted map switching on player login :)	2554	Note that $check will be called with a potentially non-loaded map, so if
1909	# should happen only on crashes	2555	it needs a loaded map it has to call C<< ->load >>.
1910	if ($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		2556
1926	=item $player_object->goto ($path, $x, $y)
1927
1928	=cut	2557	=cut
		2558
		2559	our $GOTOGEN;
1929		2560
1930	sub cf::object::player::goto {	2561	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2562	my ($self, $path, $x, $y, $check, $done) = @_;
		2563
		2564	# do generation counting so two concurrent goto's will be executed in-order
		2565	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2566
1933	$self->enter_link;	2567	$self->enter_link;
1934		2568
1935	(async {	2569	(async {
		2570	$Coro::current->{desc} = "player::goto $path $x $y";
		2571
		2572	# *tag paths override both path and x|y
		2573	if ($path =~ /^\*(.*)$/) {
		2574	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2575	my $ob = $obs[rand @obs];
		2576
		2577	# see if we actually can go there
		2578	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2579	$ob = $obs[rand @obs];
		2580	} else {
		2581	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
		2583	# else put us there anyways for now #d#
		2584
		2585	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2586	} else {
		2587	($path, $x, $y) = (undef, undef, undef);
		2588	}
		2589	}
		2590
1936	my $map = eval {	2591	my $map = eval {
1937	my $map = cf::map::find $path;	2592	my $map = defined $path ? cf::map::find $path : undef;
		2593
		2594	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2595	$map = $map->customise_for ($self);
		2596	$map = $check->($map) if $check && $map;
		2597	} else {
		2598	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600
1939	$map	2601	$map
		2602	};
		2603
		2604	if ($@) {
		2605	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2606	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2607	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2608
		2609	if ($gen == $self->{_goto_generation}) {
		2610	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2611	$self->leave_link ($map, $x, $y);
		2612	}
		2613
		2614	$done->() if $done;
1944	})->prio (1);	2615	})->prio (1);
1945	}	2616	}
1946		2617
1947	=item $player_object->enter_exit ($exit_object)	2618	=item $player_object->enter_exit ($exit_object)
1948		2619
…		…
1968	}	2639	}
1969		2640
1970	sub prepare_random_map {	2641	sub prepare_random_map {
1971	my ($exit) = @_;	2642	my ($exit) = @_;
1972		2643
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2644	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2645	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2646	# that depends on the exit object
1978		2647
1979	my $rmp = parse_random_map_params $exit->msg;	2648	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2650	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2651	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2652	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2653	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2654	$rmp->{origin_y} = $exit->y;
		2655
		2656	$exit->map->touch;
1986	}	2657	}
1987		2658
1988	$rmp->{random_seed} ||= $exit->random_seed;	2659	$rmp->{random_seed} ||= $exit->random_seed;
1989		2660
1990	my $data = cf::to_json $rmp;	2661	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2662	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2663	my $meta = "$RANDOMDIR/$md5.meta";
1993		2664
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2665	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2666	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2667	undef $fh;
1997	aio_rename "$meta~", $meta;	2668	aio_rename "$meta~", $meta;
1998		2669
		2670	my $slaying = "?random/$md5";
		2671
		2672	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2673	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2674	$exit->msg (undef);
		2675	}
2001	}	2676	}
2002	}	2677	}
2003		2678
2004	sub cf::object::player::enter_exit {	2679	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2680	my ($self, $exit) = @_;
2006		2681
2007	return unless $self->type == cf::PLAYER;	2682	return unless $self->type == cf::PLAYER;
2008		2683
2009	if ($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;	2684	$self->enter_link;
2021		2685
2022	(async {	2686	(async {
2023	$self->deactivate_recursive; # just to be sure	2687	$Coro::current->{desc} = "enter_exit";
		2688
2024	unless (eval {	2689	unless (eval {
		2690	$self->deactivate_recursive; # just to be sure
		2691
		2692	# random map handling
		2693	{
		2694	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2695
		2696	prepare_random_map $exit
		2697	if $exit->slaying eq "/!";
		2698	}
		2699
		2700	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2701	my $x = $exit->stats->hp;
		2702	my $y = $exit->stats->sp;
		2703
2025	$self->goto ($slaying, $hp, $sp);	2704	$self->goto ($map, $x, $y);
2026		2705
		2706	# if exit is damned, update players death & WoR home-position
		2707	$self->contr->savebed ($map, $x, $y)
		2708	if $exit->flag (cf::FLAG_DAMNED);
		2709
2027	1;	2710	1
2028	}) {	2711	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2712	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2713	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2714	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2715	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2716
2034	warn "ERROR in enter_exit: $@";	2717	warn "ERROR in enter_exit: $@";
…		…
2053		2736
2054	utf8::encode $text;	2737	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2738	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2739	}
2057		2740
		2741	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2742
		2743	Send a drawinfo or msg packet to the client, formatting the msg for the
		2744	client if neccessary. C<$type> should be a string identifying the type of
		2745	the message, with C<log> being the default. If C<$color> is negative, suppress
		2746	the message unless the client supports the msg packet.
		2747
		2748	=cut
		2749
		2750	# non-persistent channels (usually the info channel)
		2751	our %CHANNEL = (
		2752	"c/identify" => {
		2753	id => "infobox",
		2754	title => "Identify",
		2755	reply => undef,
		2756	tooltip => "Items recently identified",
		2757	},
		2758	"c/examine" => {
		2759	id => "infobox",
		2760	title => "Examine",
		2761	reply => undef,
		2762	tooltip => "Signs and other items you examined",
		2763	},
		2764	"c/book" => {
		2765	id => "infobox",
		2766	title => "Book",
		2767	reply => undef,
		2768	tooltip => "The contents of a note or book",
		2769	},
		2770	"c/lookat" => {
		2771	id => "infobox",
		2772	title => "Look",
		2773	reply => undef,
		2774	tooltip => "What you saw there",
		2775	},
		2776	"c/who" => {
		2777	id => "infobox",
		2778	title => "Players",
		2779	reply => undef,
		2780	tooltip => "Shows players who are currently online",
		2781	},
		2782	"c/body" => {
		2783	id => "infobox",
		2784	title => "Body Parts",
		2785	reply => undef,
		2786	tooltip => "Shows which body parts you posess and are available",
		2787	},
		2788	"c/statistics" => {
		2789	id => "infobox",
		2790	title => "Statistics",
		2791	reply => undef,
		2792	tooltip => "Shows your primary statistics",
		2793	},
		2794	"c/skills" => {
		2795	id => "infobox",
		2796	title => "Skills",
		2797	reply => undef,
		2798	tooltip => "Shows your experience per skill and item power",
		2799	},
		2800	"c/shopitems" => {
		2801	id => "infobox",
		2802	title => "Shop Items",
		2803	reply => undef,
		2804	tooltip => "Shows the items currently for sale in this shop",
		2805	},
		2806	"c/resistances" => {
		2807	id => "infobox",
		2808	title => "Resistances",
		2809	reply => undef,
		2810	tooltip => "Shows your resistances",
		2811	},
		2812	"c/pets" => {
		2813	id => "infobox",
		2814	title => "Pets",
		2815	reply => undef,
		2816	tooltip => "Shows information abotu your pets/a specific pet",
		2817	},
		2818	"c/perceiveself" => {
		2819	id => "infobox",
		2820	title => "Perceive Self",
		2821	reply => undef,
		2822	tooltip => "You gained detailed knowledge about yourself",
		2823	},
		2824	"c/uptime" => {
		2825	id => "infobox",
		2826	title => "Uptime",
		2827	reply => undef,
		2828	tooltip => "How long the server has been running since last restart",
		2829	},
		2830	"c/mapinfo" => {
		2831	id => "infobox",
		2832	title => "Map Info",
		2833	reply => undef,
		2834	tooltip => "Information related to the maps",
		2835	},
		2836	"c/party" => {
		2837	id => "party",
		2838	title => "Party",
		2839	reply => "gsay ",
		2840	tooltip => "Messages and chat related to your party",
		2841	},
		2842	"c/death" => {
		2843	id => "death",
		2844	title => "Death",
		2845	reply => undef,
		2846	tooltip => "Reason for and more info about your most recent death",
		2847	},
		2848	"c/say" => $SAY_CHANNEL,
		2849	"c/chat" => $CHAT_CHANNEL,
		2850	);
		2851
		2852	sub cf::client::send_msg {
		2853	my ($self, $channel, $msg, $color, @extra) = @_;
		2854
		2855	$msg = $self->pl->expand_cfpod ($msg)
		2856	unless $color & cf::NDI_VERBATIM;
		2857
		2858	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2859
		2860	# check predefined channels, for the benefit of C
		2861	if ($CHANNEL{$channel}) {
		2862	$channel = $CHANNEL{$channel};
		2863
		2864	$self->ext_msg (channel_info => $channel);
		2865	$channel = $channel->{id};
		2866
		2867	} elsif (ref $channel) {
		2868	# send meta info to client, if not yet sent
		2869	unless (exists $self->{channel}{$channel->{id}}) {
		2870	$self->{channel}{$channel->{id}} = $channel;
		2871	$self->ext_msg (channel_info => $channel);
		2872	}
		2873
		2874	$channel = $channel->{id};
		2875	}
		2876
		2877	return unless @extra || length $msg;
		2878
		2879	# default colour, mask it out
		2880	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2881	if $color & cf::NDI_DEF;
		2882
		2883	my $pkt = "msg "
		2884	. $self->{json_coder}->encode (
		2885	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2886	);
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if (8192 < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
2058	=item $client->ext_event ($type, %msg)	2901	=item $client->ext_msg ($type, @msg)
2059		2902
2060	Sends an exti event to the client.	2903	Sends an ext event to the client.
2061		2904
2062	=cut	2905	=cut
2063		2906
2064	sub cf::client::ext_event($$%) {	2907	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2908	my ($self, $type, @msg) = @_;
2066		2909
		2910	if ($self->extcmd == 2) {
		2911	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2912	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2913	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2914	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2915	}
		2916	}
		2917
		2918	=item $client->ext_reply ($msgid, @msg)
		2919
		2920	Sends an ext reply to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_reply($$@) {
		2925	my ($self, $id, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2929	} elsif ($self->extcmd == 1) {
		2930	#TODO: version 1, remove
		2931	unshift @msg, msgtype => "reply", msgid => $id;
		2932	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2933	}
2069	}	2934	}
2070		2935
2071	=item $success = $client->query ($flags, "text", \&cb)	2936	=item $success = $client->query ($flags, "text", \&cb)
2072		2937
2073	Queues a query to the client, calling the given callback with	2938	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>,	2939	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>.	2940	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2941
2077	Queries can fail, so check the return code. Or don't, as queries will become	2942	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2943	become reliable at some point in the future.
2079		2944
2080	=cut	2945	=cut
2081		2946
2082	sub cf::client::query {	2947	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2948	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2956	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2957	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2958
2094	$self->send_packet ($self->{query_queue}[0][0])	2959	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2960	if @{ $self->{query_queue} } == 1;
		2961
		2962	1
2096	}	2963	}
2097		2964
2098	cf::client->attach (	2965	cf::client->attach (
		2966	on_connect => sub {
		2967	my ($ns) = @_;
		2968
		2969	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2970	},
2099	on_reply => sub {	2971	on_reply => sub {
2100	my ($ns, $msg) = @_;	2972	my ($ns, $msg) = @_;
2101		2973
2102	# this weird shuffling is so that direct followup queries	2974	# this weird shuffling is so that direct followup queries
2103	# get handled first	2975	# get handled first
…		…
2115	} else {	2987	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2988	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2989	}
2118	}	2990	}
2119	},	2991	},
		2992	on_exticmd => sub {
		2993	my ($ns, $buf) = @_;
		2994
		2995	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2996
		2997	if (ref $msg) {
		2998	my ($type, $reply, @payload) =
		2999	"ARRAY" eq ref $msg
		3000	? @$msg
		3001	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3002
		3003	my @reply;
		3004
		3005	if (my $cb = $EXTICMD{$type}) {
		3006	@reply = $cb->($ns, @payload);
		3007	}
		3008
		3009	$ns->ext_reply ($reply, @reply)
		3010	if $reply;
		3011
		3012	} else {
		3013	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3014	}
		3015
		3016	cf::override;
		3017	},
2120	);	3018	);
2121		3019
2122	=item $client->async (\&cb)	3020	=item $client->async (\&cb)
2123		3021
2124	Create a new coroutine, running the specified callback. The coroutine will	3022	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3063	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3064	our $safe_hole = new Safe::Hole;
2167		3065
2168	$SIG{FPE} = 'IGNORE';	3066	$SIG{FPE} = 'IGNORE';
2169		3067
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3068	$safe->permit_only (Opcode::opset qw(
		3069	:base_core :base_mem :base_orig :base_math
		3070	grepstart grepwhile mapstart mapwhile
		3071	sort time
		3072	));
2171		3073
2172	# here we export the classes and methods available to script code	3074	# here we export the classes and methods available to script code
2173		3075
2174	=pod	3076	=pod
2175		3077
2176	The following functions and methods are available within a safe environment:	3078	The following functions and methods are available within a safe environment:
2177		3079
2178	cf::object contr pay_amount pay_player map	3080	cf::object
		3081	contr pay_amount pay_player map x y force_find force_add destroy
		3082	insert remove name archname title slaying race decrease split
		3083	value
		3084
2179	cf::object::player player	3085	cf::object::player
2180	cf::player peaceful	3086	player
2181	cf::map trigger	3087
		3088	cf::player
		3089	peaceful
		3090
		3091	cf::map
		3092	trigger
2182		3093
2183	=cut	3094	=cut
2184		3095
2185	for (	3096	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3097	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3098	insert remove inv nrof name archname title slaying race
		3099	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3100	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3101	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3102	["cf::map" => qw(trigger)],
2190	) {	3103	) {
2191	no strict 'refs';	3104	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3105	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3106	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2210	my ($code, %vars) = @_;	3123	my ($code, %vars) = @_;
2211		3124
2212	my $qcode = $code;	3125	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3126	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3127	$qcode =~ s/\n/\\n/g;
		3128
		3129	%vars = (_dummy => 0) unless %vars;
2215		3130
2216	local $_;	3131	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;	3132	local @safe::cf::_safe_eval_args = values %vars;
2218		3133
2219	my $eval =	3134	my $eval =
…		…
2262	=back	3177	=back
2263		3178
2264	=cut	3179	=cut
2265		3180
2266	#############################################################################	3181	#############################################################################
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 $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434
2435	#############################################################################
2436	# the server's init and main functions	3182	# the server's init and main functions
2437		3183
2438	sub load_facedata($) {	3184	sub load_facedata($) {
2439	my ($path) = @_;	3185	my ($path) = @_;
		3186
		3187	# HACK to clear player env face cache, we need some signal framework
		3188	# for this (global event?)
		3189	%ext::player_env::MUSIC_FACE_CACHE = ();
		3190
		3191	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2440		3192
2441	warn "loading facedata from $path\n";	3193	warn "loading facedata from $path\n";
2442		3194
2443	my $facedata;	3195	my $facedata;
2444	0 < aio_load $path, $facedata	3196	0 < aio_load $path, $facedata
…		…
2447	$facedata = Coro::Storable::thaw $facedata;	3199	$facedata = Coro::Storable::thaw $facedata;
2448		3200
2449	$facedata->{version} == 2	3201	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3202	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3203
		3204	# patch in the exptable
		3205	$facedata->{resource}{"res/exp_table"} = {
		3206	type => FT_RSRC,
		3207	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3208	};
		3209	cf::cede_to_tick;
		3210
2452	{	3211	{
2453	my $faces = $facedata->{faceinfo};	3212	my $faces = $facedata->{faceinfo};
2454		3213
2455	while (my ($face, $info) = each %$faces) {	3214	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3215	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3216
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3217	cf::face::set_visibility $idx, $info->{visibility};
		3218	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3219	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3220	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2460	Coro::cede;	3221
		3222	cf::cede_to_tick;
2461	}	3223	}
2462		3224
2463	while (my ($face, $info) = each %$faces) {	3225	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3226	next unless $info->{smooth};
		3227
2465	my $idx = cf::face::find $face	3228	my $idx = cf::face::find $face
2466	or next;	3229	or next;
		3230
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3231	if (my $smooth = cf::face::find $info->{smooth}) {
		3232	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3233	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3234	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3235	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3236	}
2472	Coro::cede;	3237
		3238	cf::cede_to_tick;
2473	}	3239	}
2474	}	3240	}
2475		3241
2476	{	3242	{
2477	my $anims = $facedata->{animinfo};	3243	my $anims = $facedata->{animinfo};
2478		3244
2479	while (my ($anim, $info) = each %$anims) {	3245	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3246	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3247	cf::cede_to_tick;
2482	}	3248	}
2483		3249
2484	cf::anim::invalidate_all; # d'oh	3250	cf::anim::invalidate_all; # d'oh
2485	}	3251	}
2486		3252
		3253	{
		3254	# TODO: for gcfclient pleasure, we should give resources
		3255	# that gcfclient doesn't grok a >10000 face index.
		3256	my $res = $facedata->{resource};
		3257
		3258	while (my ($name, $info) = each %$res) {
		3259	if (defined $info->{type}) {
		3260	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3261	my $data;
		3262
		3263	if ($info->{type} & 1) {
		3264	# prepend meta info
		3265
		3266	my $meta = $enc->encode ({
		3267	name => $name,
		3268	%{ $info->{meta} || {} },
		3269	});
		3270
		3271	$data = pack "(w/a*)*", $meta, $info->{data};
		3272	} else {
		3273	$data = $info->{data};
		3274	}
		3275
		3276	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3277	cf::face::set_type $idx, $info->{type};
		3278	} else {
		3279	$RESOURCE{$name} = $info;
		3280	}
		3281
		3282	cf::cede_to_tick;
		3283	}
		3284	}
		3285
		3286	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3287
2487	1	3288	1
2488	}	3289	}
2489		3290
		3291	cf::global->attach (on_resource_update => sub {
		3292	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3293	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3294
		3295	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3296	my $sound = $soundconf->{compat}[$_]
		3297	or next;
		3298
		3299	my $face = cf::face::find "sound/$sound->[1]";
		3300	cf::sound::set $sound->[0] => $face;
		3301	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3302	}
		3303
		3304	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3305	my $face = cf::face::find "sound/$v";
		3306	cf::sound::set $k => $face;
		3307	}
		3308	}
		3309	});
		3310
		3311	register_exticmd fx_want => sub {
		3312	my ($ns, $want) = @_;
		3313
		3314	while (my ($k, $v) = each %$want) {
		3315	$ns->fx_want ($k, $v);
		3316	}
		3317	};
		3318
		3319	sub load_resource_file($) {
		3320	my $guard = lock_acquire "load_resource_file";
		3321
		3322	my $status = load_resource_file_ $_[0];
		3323	get_slot 0.1, 100;
		3324	cf::arch::commit_load;
		3325
		3326	$status
		3327	}
		3328
		3329	sub reload_regions {
		3330	# HACK to clear player env face cache, we need some signal framework
		3331	# for this (global event?)
		3332	%ext::player_env::MUSIC_FACE_CACHE = ();
		3333
		3334	load_resource_file "$MAPDIR/regions"
		3335	or die "unable to load regions file\n";
		3336
		3337	for (cf::region::list) {
		3338	$_->{match} = qr/$_->{match}/
		3339	if exists $_->{match};
		3340	}
		3341	}
		3342
2490	sub reload_facedata {	3343	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3344	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3345	or die "unable to load facedata\n";
2493	}	3346	}
2494		3347
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 {	3348	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3349	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3350	or die "unable to load archetypes\n";
2503	}	3351	}
2504		3352
2505	sub reload_treasures {	3353	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3354	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3355	or die "unable to load treasurelists\n";
2508	}	3356	}
2509		3357
2510	sub reload_resources {	3358	sub reload_resources {
2511	warn "reloading resource files...\n";	3359	warn "reloading resource files...\n";
2512		3360
2513	reload_regions;
2514	reload_facedata;	3361	reload_facedata;
2515	reload_archetypes;	3362	reload_archetypes;
		3363	reload_regions;
2516	reload_treasures;	3364	reload_treasures;
2517		3365
2518	warn "finished reloading resource files\n";	3366	warn "finished reloading resource files\n";
2519	}	3367	}
2520		3368
2521	sub init {	3369	sub reload_config {
2522	reload_resources;
2523	}
2524
2525	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3370	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	3371	or return;
2528		3372
2529	local $/;	3373	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	3374	*CFG = YAML::Load <$fh>;
2531		3375
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3376	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2533		3377
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3378	$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};	3379	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2541	};	3385	};
2542	warn $@ if $@;	3386	warn $@ if $@;
2543	}	3387	}
2544	}	3388	}
2545		3389
		3390	sub pidfile() {
		3391	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3392	or die "$PIDFILE: $!";
		3393	flock $fh, &Fcntl::LOCK_EX
		3394	or die "$PIDFILE: flock: $!";
		3395	$fh
		3396	}
		3397
		3398	# make sure only one server instance is running at any one time
		3399	sub atomic {
		3400	my $fh = pidfile;
		3401
		3402	my $pid = <$fh>;
		3403	kill 9, $pid if $pid > 0;
		3404
		3405	seek $fh, 0, 0;
		3406	print $fh $$;
		3407	}
		3408
		3409	sub main_loop {
		3410	warn "EV::loop starting\n";
		3411	if (1) {
		3412	EV::loop;
		3413	}
		3414	warn "EV::loop returned\n";
		3415	goto &main_loop unless $REALLY_UNLOOP;
		3416	}
		3417
2546	sub main {	3418	sub main {
		3419	cf::init_globals; # initialise logging
		3420
		3421	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3422	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3423	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3424	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3425
		3426	cf::init_experience;
		3427	cf::init_anim;
		3428	cf::init_attackmess;
		3429	cf::init_dynamic;
		3430
		3431	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3432
2547	# we must not ever block the main coroutine	3433	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3434	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3435	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3436	(async {
2551	Event::one_event;	3437	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3438	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3439	})->prio (Coro::PRIO_MAX);
2553	};	3440	};
2554		3441
2555	cfg_load;	3442	evthread_start IO::AIO::poll_fileno;
		3443
		3444	cf::sync_job {
		3445	reload_resources;
		3446	reload_config;
2556	db_init;	3447	db_init;
		3448
		3449	cf::load_settings;
		3450	cf::load_materials;
		3451	cf::init_uuid;
		3452	cf::init_signals;
		3453	cf::init_commands;
		3454	cf::init_skills;
		3455
		3456	cf::init_beforeplay;
		3457
		3458	atomic;
		3459
2557	load_extensions;	3460	load_extensions;
2558		3461
2559	$TICK_WATCHER->start;	3462	utime time, time, $RUNTIMEFILE;
2560	Event::loop;	3463
		3464	# no (long-running) fork's whatsoever before this point(!)
		3465	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3466
		3467	(pop @POST_INIT)->(0) while @POST_INIT;
		3468	};
		3469
		3470	main_loop;
2561	}	3471	}
2562		3472
2563	#############################################################################	3473	#############################################################################
2564	# initialisation and cleanup	3474	# initialisation and cleanup
2565		3475
2566	# install some emergency cleanup handlers	3476	# install some emergency cleanup handlers
2567	BEGIN {	3477	BEGIN {
		3478	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3479	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3480	$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";	3481	cf::cleanup "SIG$signal";
2576	},
2577	);	3482	};
		3483	}
		3484	}
		3485
		3486	sub write_runtime_sync {
		3487	# first touch the runtime file to show we are still running:
		3488	# the fsync below can take a very very long time.
		3489
		3490	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3491
		3492	my $guard = cf::lock_acquire "write_runtime";
		3493
		3494	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3495	or return;
		3496
		3497	my $value = $cf::RUNTIME + 90 + 10;
		3498	# 10 is the runtime save interval, for a monotonic clock
		3499	# 60 allows for the watchdog to kill the server.
		3500
		3501	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3502	and return;
		3503
		3504	# always fsync - this file is important
		3505	aio_fsync $fh
		3506	and return;
		3507
		3508	# touch it again to show we are up-to-date
		3509	aio_utime $fh, undef, undef;
		3510
		3511	close $fh
		3512	or return;
		3513
		3514	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3515	and return;
		3516
		3517	warn "runtime file written.\n";
		3518
2578	}	3519	1
		3520	}
		3521
		3522	our $uuid_lock;
		3523	our $uuid_skip;
		3524
		3525	sub write_uuid_sync($) {
		3526	$uuid_skip ||= $_[0];
		3527
		3528	return if $uuid_lock;
		3529	local $uuid_lock = 1;
		3530
		3531	my $uuid = "$LOCALDIR/uuid";
		3532
		3533	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3534	or return;
		3535
		3536	my $value = uuid_seq uuid_cur;
		3537
		3538	unless ($value) {
		3539	warn "cowardly refusing to write zero uuid value!\n";
		3540	return;
		3541	}
		3542
		3543	my $value = uuid_str $value + $uuid_skip;
		3544	$uuid_skip = 0;
		3545
		3546	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3547	and return;
		3548
		3549	# always fsync - this file is important
		3550	aio_fsync $fh
		3551	and return;
		3552
		3553	close $fh
		3554	or return;
		3555
		3556	aio_rename "$uuid~", $uuid
		3557	and return;
		3558
		3559	warn "uuid file written ($value).\n";
		3560
		3561	1
		3562
		3563	}
		3564
		3565	sub write_uuid($$) {
		3566	my ($skip, $sync) = @_;
		3567
		3568	$sync ? write_uuid_sync $skip
		3569	: async { write_uuid_sync $skip };
2579	}	3570	}
2580		3571
2581	sub emergency_save() {	3572	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3573	my $freeze_guard = cf::freeze_mainloop;
2583		3574
2584	warn "enter emergency perl save\n";	3575	warn "emergency_perl_save: enter\n";
2585		3576
2586	cf::sync_job {	3577	cf::sync_job {
		3578	# this is a trade-off: we want to be very quick here, so
		3579	# save all maps without fsync, and later call a global sync
		3580	# (which in turn might be very very slow)
		3581	local $USE_FSYNC = 0;
		3582
2587	# use a peculiar iteration method to avoid tripping on perl	3583	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	3584	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	3585	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	3586	warn "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	3587	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	3588	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	3589	$pl->valid or next;
		3590	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	3591	$pl->save;
2595	}	3592	}
2596	warn "end emergency player save\n";	3593	warn "emergency_perl_save: end player save\n";
2597		3594
2598	warn "begin emergency map save\n";	3595	warn "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	3596	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	3597	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	3598	$map->valid or next;
2602	$map->save;	3599	$map->save;
2603	}	3600	}
2604	warn "end emergency map save\n";	3601	warn "emergency_perl_save: end map save\n";
2605		3602
2606	warn "begin emergency database checkpoint\n";	3603	warn "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	3604	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	3605	warn "emergency_perl_save: end database checkpoint\n";
		3606
		3607	warn "emergency_perl_save: begin write uuid\n";
		3608	write_uuid_sync 1;
		3609	warn "emergency_perl_save: end write uuid\n";
2609	};	3610	};
2610		3611
		3612	warn "emergency_perl_save: starting sync()\n";
		3613	IO::AIO::aio_sync sub {
		3614	warn "emergency_perl_save: finished sync()\n";
		3615	};
		3616
2611	warn "leave emergency perl save\n";	3617	warn "emergency_perl_save: leave\n";
2612	}	3618	}
2613		3619
2614	sub post_cleanup {	3620	sub post_cleanup {
2615	my ($make_core) = @_;	3621	my ($make_core) = @_;
2616		3622
2617	warn Carp::longmess "post_cleanup backtrace"	3623	warn Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	3624	if $make_core;
		3625
		3626	my $fh = pidfile;
		3627	unlink $PIDFILE if <$fh> == $$;
		3628	}
		3629
		3630	# a safer delete_package, copied from Symbol
		3631	sub clear_package($) {
		3632	my $pkg = shift;
		3633
		3634	# expand to full symbol table name if needed
		3635	unless ($pkg =~ /^main::.*::$/) {
		3636	$pkg = "main$pkg" if $pkg =~ /^::/;
		3637	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3638	$pkg .= '::' unless $pkg =~ /::$/;
		3639	}
		3640
		3641	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3642	my $stem_symtab = *{$stem}{HASH};
		3643
		3644	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3645	or return;
		3646
		3647	# clear all symbols
		3648	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3649	for my $name (keys %$leaf_symtab) {
		3650	_gv_clear *{"$pkg$name"};
		3651	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3652	}
		3653	warn "cleared package $pkg\n";#d#
2619	}	3654	}
2620		3655
2621	sub do_reload_perl() {	3656	sub do_reload_perl() {
2622	# can/must only be called in main	3657	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	3658	if ($Coro::current != $Coro::main) {
2624	warn "can only reload from main coroutine";	3659	warn "can only reload from main coroutine";
2625	return;	3660	return;
2626	}	3661	}
2627		3662
		3663	return if $RELOAD++;
		3664
		3665	my $t1 = EV::time;
		3666
		3667	while ($RELOAD) {
2628	warn "reloading...";	3668	warn "reloading...";
2629		3669
2630	warn "entering sync_job";	3670	warn "entering sync_job";
2631		3671
2632	cf::sync_job {	3672	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark	3673	cf::write_runtime_sync; # external watchdog should not bark
2634	cf::emergency_save;	3674	cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark	3675	cf::write_runtime_sync; # external watchdog should not bark
2636		3676
2637	warn "syncing database to disk";	3677	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;	3678	BDB::db_env_txn_checkpoint $DB_ENV;
2639		3679
2640	# if anything goes wrong in here, we should simply crash as we already saved	3680	# if anything goes wrong in here, we should simply crash as we already saved
2641		3681
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";	3682	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;	3683	while (IO::AIO::nreqs || BDB::nreqs) {
2653	warn "iterate...";	3684	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	}	3685	}
2678		3686
2679	warn "... nuking $pkg";	3687	warn "cancelling all extension coros";
2680	Symbol::delete_package $pkg;	3688	$_->cancel for values %EXT_CORO;
2681	}	3689	%EXT_CORO = ();
2682		3690
2683	warn "unloading all perl modules loaded from $LIBDIR";	3691	warn "removing commands";
2684	while (my ($k, $v) = each %INC) {	3692	%COMMAND = ();
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		3693
		3694	warn "removing ext/exti commands";
		3695	%EXTCMD = ();
		3696	%EXTICMD = ();
		3697
		3698	warn "unloading/nuking all extensions";
		3699	for my $pkg (@EXTS) {
2687	warn "... unloading $k";	3700	warn "... unloading $pkg";
2688	delete $INC{$k};
2689		3701
2690	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;
2692
2693	if (my $cb = $k->can ("unload_module")) {	3702	if (my $cb = $pkg->can ("unload")) {
		3703	eval {
2694	$cb->();	3704	$cb->($pkg);
		3705	1
		3706	} or warn "$pkg unloaded, but with errors: $@";
		3707	}
		3708
		3709	warn "... clearing $pkg";
		3710	clear_package $pkg;
2695	}	3711	}
2696		3712
2697	Symbol::delete_package $k;	3713	warn "unloading all perl modules loaded from $LIBDIR";
		3714	while (my ($k, $v) = each %INC) {
		3715	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3716
		3717	warn "... unloading $k";
		3718	delete $INC{$k};
		3719
		3720	$k =~ s/\.pm$//;
		3721	$k =~ s/\//::/g;
		3722
		3723	if (my $cb = $k->can ("unload_module")) {
		3724	$cb->();
		3725	}
		3726
		3727	clear_package $k;
2698	}	3728	}
2699		3729
2700	warn "getting rid of safe::, as good as possible";	3730	warn "getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	3731	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3732	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		3733
2704	warn "unloading cf.pm \"a bit\"";	3734	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	3735	delete $INC{"cf.pm"};
2706	delete $INC{"cf/pod.pm"};	3736	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2707		3737
2708	# don't, removes xs symbols, too,	3738	# don't, removes xs symbols, too,
2709	# and global variables created in xs	3739	# and global variables created in xs
2710	#Symbol::delete_package __PACKAGE__;	3740	#clear_package __PACKAGE__;
2711		3741
2712	warn "unload completed, starting to reload now";	3742	warn "unload completed, starting to reload now";
2713		3743
2714	warn "reloading cf.pm";	3744	warn "reloading cf.pm";
2715	require cf;	3745	require cf;
2716	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3746	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2717		3747
2718	warn "loading config and database again";	3748	warn "loading config and database again";
2719	cf::cfg_load;	3749	cf::reload_config;
2720		3750
2721	warn "loading extensions";	3751	warn "loading extensions";
2722	cf::load_extensions;	3752	cf::load_extensions;
2723		3753
		3754	if ($REATTACH_ON_RELOAD) {
2724	warn "reattaching attachments to objects/players";	3755	warn "reattaching attachments to objects/players";
2725	_global_reattach; # objects, sockets	3756	_global_reattach; # objects, sockets
2726	warn "reattaching attachments to maps";	3757	warn "reattaching attachments to maps";
2727	reattach $_ for values %MAP;	3758	reattach $_ for values %MAP;
2728	warn "reattaching attachments to players";	3759	warn "reattaching attachments to players";
2729	reattach $_ for values %PLAYER;	3760	reattach $_ for values %PLAYER;
		3761	}
2730		3762
		3763	warn "running post_init jobs";
		3764	(pop @POST_INIT)->(1) while @POST_INIT;
		3765
2731	warn "leaving sync_job";	3766	warn "leaving sync_job";
2732		3767
2733	1	3768	1
2734	} or do {	3769	} or do {
2735	warn $@;	3770	warn $@;
2736	warn "error while reloading, exiting.";	3771	cf::cleanup "error while reloading, exiting.";
2737	exit 1;
2738	};	3772	};
2739		3773
2740	warn "reloaded";	3774	warn "reloaded";
		3775	--$RELOAD;
		3776	}
		3777
		3778	$t1 = EV::time - $t1;
		3779	warn "reload completed in ${t1}s\n";
2741	};	3780	};
2742		3781
2743	our $RELOAD_WATCHER; # used only during reload	3782	our $RELOAD_WATCHER; # used only during reload
2744		3783
2745	sub reload_perl() {	3784	sub reload_perl() {
2746	# doing reload synchronously and two reloads happen back-to-back,	3785	# doing reload synchronously and two reloads happen back-to-back,
2747	# coro crashes during coro_state_free->destroy here.	3786	# coro crashes during coro_state_free->destroy here.
2748		3787
2749	$RELOAD_WATCHER ||= Event->timer (	3788	$RELOAD_WATCHER ||= cf::async {
2750	reentrant => 0,	3789	Coro::AIO::aio_wait cache_extensions;
2751	after => 0,	3790
2752	data => WF_AUTOCANCEL,	3791	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2753	cb => sub {
2754	do_reload_perl;	3792	do_reload_perl;
2755	undef $RELOAD_WATCHER;	3793	undef $RELOAD_WATCHER;
2756	},	3794	};
2757	);	3795	};
2758	}	3796	}
2759		3797
2760	register_command "reload" => sub {	3798	register_command "reload" => sub {
2761	my ($who, $arg) = @_;	3799	my ($who, $arg) = @_;
2762		3800
2763	if ($who->flag (FLAG_WIZ)) {	3801	if ($who->flag (FLAG_WIZ)) {
2764	$who->message ("reloading server.");	3802	$who->message ("reloading server.");
		3803	async {
		3804	$Coro::current->{desc} = "perl_reload";
2765	async { reload_perl };	3805	reload_perl;
		3806	};
2766	}	3807	}
2767	};	3808	};
2768		3809
2769	unshift @INC, $LIBDIR;	3810	unshift @INC, $LIBDIR;
2770		3811
…		…
2772		3813
2773	our @WAIT_FOR_TICK;	3814	our @WAIT_FOR_TICK;
2774	our @WAIT_FOR_TICK_BEGIN;	3815	our @WAIT_FOR_TICK_BEGIN;
2775		3816
2776	sub wait_for_tick {	3817	sub wait_for_tick {
2777	return unless $TICK_WATCHER->is_active;
2778	return if $Coro::current == $Coro::main;	3818	return if tick_inhibit || $Coro::current == $Coro::main;
2779		3819
2780	my $signal = new Coro::Signal;	3820	my $signal = new Coro::Signal;
2781	push @WAIT_FOR_TICK, $signal;	3821	push @WAIT_FOR_TICK, $signal;
2782	$signal->wait;	3822	$signal->wait;
2783	}	3823	}
2784		3824
2785	sub wait_for_tick_begin {	3825	sub wait_for_tick_begin {
2786	return unless $TICK_WATCHER->is_active;
2787	return if $Coro::current == $Coro::main;	3826	return if tick_inhibit || $Coro::current == $Coro::main;
2788		3827
2789	my $signal = new Coro::Signal;	3828	my $signal = new Coro::Signal;
2790	push @WAIT_FOR_TICK_BEGIN, $signal;	3829	push @WAIT_FOR_TICK_BEGIN, $signal;
2791	$signal->wait;	3830	$signal->wait;
2792	}	3831	}
2793		3832
2794	$TICK_WATCHER = Event->timer (	3833	sub tick {
2795	reentrant => 0,
2796	parked => 1,
2797	prio => 0,
2798	at => $NEXT_TICK || $TICK,
2799	data => WF_AUTOCANCEL,
2800	cb => sub {
2801	if ($Coro::current != $Coro::main) {	3834	if ($Coro::current != $Coro::main) {
2802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3835	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2803	unless ++$bug_warning > 10;	3836	unless ++$bug_warning > 10;
2804	return;	3837	return;
2805	}	3838	}
2806		3839
2807	$NOW = Event::time;
2808
2809	cf::server_tick; # one server iteration	3840	cf::server_tick; # one server iteration
2810		3841
2811	$RUNTIME += $TICK;
2812	$NEXT_TICK += $TICK;
2813
2814	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3842	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2815	$NEXT_RUNTIME_WRITE = $NOW + 10;	3843	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2816	Coro::async_pool {	3844	Coro::async_pool {
		3845	$Coro::current->{desc} = "runtime saver";
2817	write_runtime	3846	write_runtime_sync
2818	or warn "ERROR: unable to write runtime file: $!";	3847	or warn "ERROR: unable to write runtime file: $!";
2819	};
2820	}	3848	};
		3849	}
2821		3850
2822	# my $AFTER = Event::time;
2823	# warn $AFTER - $NOW;#d#
2824
2825	# if we are delayed by four ticks or more, skip them all
2826	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2827
2828	$TICK_WATCHER->at ($NEXT_TICK);
2829	$TICK_WATCHER->start;
2830
2831	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2832	$sig->send;	3852	$sig->send;
2833	}	3853	}
2834	while (my $sig = shift @WAIT_FOR_TICK) {	3854	while (my $sig = shift @WAIT_FOR_TICK) {
2835	$sig->send;	3855	$sig->send;
2836	}
2837
2838	_post_tick;
2839	},	3856	}
2840	);	3857
		3858	$LOAD = ($NOW - $TICK_START) / $TICK;
		3859	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3860
		3861	if (0) {
		3862	if ($NEXT_TICK) {
		3863	my $jitter = $TICK_START - $NEXT_TICK;
		3864	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3865	warn "jitter $JITTER\n";#d#
		3866	}
		3867	}
		3868	}
2841		3869
2842	{	3870	{
2843	BDB::max_poll_time $TICK * 0.1;	3871	# configure BDB
2844	$BDB_POLL_WATCHER = Event->io (	3872
2845	reentrant => 0,
2846	fd => BDB::poll_fileno,
2847	poll => 'r',
2848	prio => 0,
2849	data => WF_AUTOCANCEL,
2850	cb => \&BDB::poll_cb,
2851	);
2852	BDB::min_parallel 8;	3873	BDB::min_parallel 8;
2853		3874	BDB::max_poll_reqs $TICK * 0.1;
2854	BDB::set_sync_prepare {	3875	$AnyEvent::BDB::WATCHER->priority (1);
2855	my $status;
2856	my $current = $Coro::current;
2857	(
2858	sub {
2859	$status = $!;
2860	$current->ready; undef $current;
2861	},
2862	sub {
2863	Coro::schedule while defined $current;
2864	$! = $status;
2865	},
2866	)
2867	};
2868		3876
2869	unless ($DB_ENV) {	3877	unless ($DB_ENV) {
2870	$DB_ENV = BDB::db_env_create;	3878	$DB_ENV = BDB::db_env_create;
		3879	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3880	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3881	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3882	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3883	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2871		3884
2872	cf::sync_job {	3885	cf::sync_job {
2873	eval {	3886	eval {
2874	BDB::db_env_open	3887	BDB::db_env_open
2875	$DB_ENV,	3888	$DB_ENV,
2876	$BDB_ENV_DIR,	3889	$BDBDIR,
2877	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3890	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3891	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879	0666;	3892	0666;
2880		3893
2881	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3894	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2882
2883	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884	$DB_ENV->set_lk_detect;
2885	};	3895	};
2886		3896
2887	cf::cleanup "db_env_open(db): $@" if $@;	3897	cf::cleanup "db_env_open(db): $@" if $@;
2888	};	3898	};
2889	}	3899	}
		3900
		3901	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3902	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3903	};
		3904	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3905	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3906	};
		3907	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3908	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3909	};
2890	}	3910	}
2891		3911
2892	{	3912	{
		3913	# configure IO::AIO
		3914
2893	IO::AIO::min_parallel 8;	3915	IO::AIO::min_parallel 8;
2894
2895	undef $Coro::AIO::WATCHER;
2896	IO::AIO::max_poll_time $TICK * 0.1;	3916	IO::AIO::max_poll_time $TICK * 0.1;
2897	$AIO_POLL_WATCHER = Event->io (	3917	undef $AnyEvent::AIO::WATCHER;
2898	reentrant => 0,	3918	}
2899	data => WF_AUTOCANCEL,	3919
2900	fd => IO::AIO::poll_fileno,	3920	my $_log_backtrace;
2901	poll => 'r',	3921
2902	prio => 6,	3922	sub _log_backtrace {
2903	cb => \&IO::AIO::poll_cb,	3923	my ($msg, @addr) = @_;
2904	);	3924
		3925	$msg =~ s/\n//;
		3926
		3927	# limit the # of concurrent backtraces
		3928	if ($_log_backtrace < 2) {
		3929	++$_log_backtrace;
		3930	my $perl_bt = Carp::longmess $msg;
		3931	async {
		3932	$Coro::current->{desc} = "abt $msg";
		3933
		3934	my @bt = fork_call {
		3935	@addr = map { sprintf "%x", $_ } @addr;
		3936	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3937	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3938	or die "addr2line: $!";
		3939
		3940	my @funcs;
		3941	my @res = <$fh>;
		3942	chomp for @res;
		3943	while (@res) {
		3944	my ($func, $line) = splice @res, 0, 2, ();
		3945	push @funcs, "[$func] $line";
		3946	}
		3947
		3948	@funcs
		3949	};
		3950
		3951	LOG llevInfo, "[ABT] $perl_bt\n";
		3952	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3953	LOG llevInfo, "[ABT] $_\n" for @bt;
		3954	--$_log_backtrace;
		3955	};
		3956	} else {
		3957	LOG llevInfo, "[ABT] $msg\n";
		3958	LOG llevInfo, "[ABT] [suppressed]\n";
		3959	}
2905	}	3960	}
2906		3961
2907	# load additional modules	3962	# load additional modules
2908	use cf::pod;	3963	require "cf/$_.pm" for @EXTRA_MODULES;
2909		3964
2910	END { cf::emergency_save }	3965	END { cf::emergency_save }
2911		3966
2912	1	3967	1
2913		3968

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