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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.203 by root, Thu Feb 1 19:40:42 2007 UTC vs.
Revision 1.477 by root, Wed Sep 2 22:52:36 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.5 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		79
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		81
36	our %COMMAND = ();	82	our %COMMAND = ();
37	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
38		84
39	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
43		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	92	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		93
47	our $TICK = MAX_TIME * 1e-6;	94	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	95	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	96	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	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;
		109
		110	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	112	our $NEXT_TICK;
52	our $NOW;	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
		117	our $BDB_TRICKLE_WATCHER;
		118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
53		121
54	our %CFG;	122	our %CFG;
55		123
56	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
58		127
59	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	130	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		131
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $REALLY_UNLOOP; # never set to true, please :)
		144
70	binmode STDOUT;	145	binmode STDOUT;
71	binmode STDERR;	146	binmode STDERR;
72		147
73	# read virtual server time, if available	148	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	150	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
78	}	153	}
79		154
80	mkdir cf::localdir;	155	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	156
82	mkdir cf::localdir . "/" . cf::tmpdir;	157	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		159
86	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
87		161
88	sub cf::map::normalise;	162	sub cf::map::normalise;
89		163
…		…
100	=item $cf::RUNTIME	174	=item $cf::RUNTIME
101		175
102	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
103	every server tick.	177	every server tick.
104		178
105	=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
106		182
107	The perl library directory, where extensions and cf-specific modules can	183	Various directories - "/etc", read-only install directory, perl-library
108	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.
109		187
110	=item $cf::NOW	188	=item $cf::NOW
111		189
112	The time of the last (current) server tick.	190	The time of the last (current) server tick.
113		191
114	=item $cf::TICK	192	=item $cf::TICK
115		193
116	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
117		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
118	=item %cf::CFG	206	=item %cf::CFG
119		207
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
121	from wherever your confdir points to.	209	from wherever your confdir points to.
122		210
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		212
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	213	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	214	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	215	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.	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.
129		222
130	=back	223	=back
131		224
132	=cut	225	=cut
133		226
134	BEGIN {	227	$Coro::State::WARNHOOK = sub {
135	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	228	my $msg = join "", @_;
137	utf8::encode $msg;
138		229
139	$msg .= "\n"	230	$msg .= "\n"
140	unless $msg =~ /\n$/;	231	unless $msg =~ /\n$/;
141		232
		233	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		234
142	LOG llevError, $msg;	235	LOG llevError, $msg;
143	};	236	};
144	}	237
		238	$Coro::State::DIEHOOK = sub {
		239	return unless $^S eq 0; # "eq", not "=="
		240
		241	warn Carp::longmess $_[0];
		242
		243	if ($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	Coro::terminate
		250	};
145		251
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	252	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	253	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	254	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	255	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	256	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		257	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	258	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		259
153	# we bless all objects into (empty) derived classes to force a method lookup	260	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	261	# within the Safe compartment.
155	for my $pkg (qw(	262	for my $pkg (qw(
156	cf::global cf::attachable	263	cf::global cf::attachable
157	cf::object cf::object::player	264	cf::object cf::object::player
158	cf::client cf::player	265	cf::client cf::player
159	cf::arch cf::living	266	cf::arch cf::living
		267	cf::map cf::mapspace
160	cf::map cf::party cf::region	268	cf::party cf::region
161	)) {	269	)) {
162	no strict 'refs';
163	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	270	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
164	}	271	}
165		272
166	$Event::DIED = sub {	273	$EV::DIED = sub {
167	warn "error in event callback: @_";	274	warn "error in event callback: @_";
168	};	275	};
		276
		277	#############################################################################
169		278
170	=head2 UTILITY FUNCTIONS	279	=head2 UTILITY FUNCTIONS
171		280
172	=over 4	281	=over 4
173		282
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	301	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	302	$d
194	} || "[unable to dump $_[0]: '$@']";	303	} || "[unable to dump $_[0]: '$@']";
195	}	304	}
196		305
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	306	=item $ref = cf::decode_json $json
200		307
201	Converts a JSON string into the corresponding perl data structure.	308	Converts a JSON string into the corresponding perl data structure.
202		309
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	310	=item $json = cf::encode_json $ref
211		311
212	Converts a perl data structure into its JSON representation.	312	Converts a perl data structure into its JSON representation.
213		313
214	=cut	314	=cut
215		315
216	sub to_json($) {	316	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	317
218	JSON::Syck::Dump $_[0]	318	sub encode_json($) { $json_coder->encode ($_[0]) }
		319	sub decode_json($) { $json_coder->decode ($_[0]) }
		320
		321	=item cf::post_init { BLOCK }
		322
		323	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		324	but I<before> the server starts ticking again.
		325
		326	The cdoeblock will have a single boolean argument to indicate whether this
		327	is a reload or not.
		328
		329	=cut
		330
		331	sub post_init(&) {
		332	push @POST_INIT, shift;
219	}	333	}
220		334
221	=item cf::lock_wait $string	335	=item cf::lock_wait $string
222		336
223	Wait until the given lock is available. See cf::lock_acquire.	337	Wait until the given lock is available. See cf::lock_acquire.
224		338
225	=item my $lock = cf::lock_acquire $string	339	=item my $lock = cf::lock_acquire $string
226		340
227	Wait until the given lock is available and then acquires it and returns	341	Wait until the given lock is available and then acquires it and returns
228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	342	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
229	for example when the coroutine gets canceled), the lock is automatically	343	for example when the coroutine gets canceled), the lock is automatically
230	returned.	344	returned.
231		345
		346	Locks are *not* recursive, locking from the same coro twice results in a
		347	deadlocked coro.
		348
232	Lock names should begin with a unique identifier (for example, cf::map::find	349	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	350	uses map_find and cf::map::load uses map_load).
234		351
235	=cut	352	=item $locked = cf::lock_active $string
236		353
237	our %LOCK;	354	Return true if the lock is currently active, i.e. somebody has locked it.
		355
		356	=cut
		357
		358	our $LOCKS = new Coro::SemaphoreSet;
238		359
239	sub lock_wait($) {	360	sub lock_wait($) {
240	my ($key) = @_;	361	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	362	}
248		363
249	sub lock_acquire($) {	364	sub lock_acquire($) {
250	my ($key) = @_;	365	$LOCKS->guard ($_[0])
		366	}
251		367
252	# wait, to be sure we are not locked	368	sub lock_active($) {
253	lock_wait $key;	369	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	370	}
262		371
263	sub freeze_mainloop {	372	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	373	tick_inhibit_inc;
265		374
266	my $guard = Coro::guard {	375	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	376	}
268	$WRITE_RUNTIME_WATCHER->start;	377
		378	=item cf::periodic $interval, $cb
		379
		380	Like EV::periodic, but randomly selects a starting point so that the actions
		381	get spread over timer.
		382
		383	=cut
		384
		385	sub periodic($$) {
		386	my ($interval, $cb) = @_;
		387
		388	my $start = rand List::Util::min 180, $interval;
		389
		390	EV::periodic $start, $interval, 0, $cb
		391	}
		392
		393	=item cf::get_slot $time[, $priority[, $name]]
		394
		395	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		396	This call blocks and returns only when you have at least C<$time> seconds
		397	of cpu time till the next tick. The slot is only valid till the next cede.
		398
		399	The optional C<$name> can be used to identify the job to run. It might be
		400	used for statistical purposes and should identify the same time-class.
		401
		402	Useful for short background jobs.
		403
		404	=cut
		405
		406	our @SLOT_QUEUE;
		407	our $SLOT_QUEUE;
		408
		409	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		410	$SLOT_QUEUE = Coro::async {
		411	$Coro::current->desc ("timeslot manager");
		412
		413	my $signal = new Coro::Signal;
		414
		415	while () {
		416	next_job:
		417	my $avail = cf::till_tick;
		418	if ($avail > 0.01) {
		419	for (0 .. $#SLOT_QUEUE) {
		420	if ($SLOT_QUEUE[$_][0] < $avail) {
		421	my $job = splice @SLOT_QUEUE, $_, 1, ();
		422	$job->[2]->send;
		423	Coro::cede;
		424	goto next_job;
		425	}
		426	}
		427	}
		428
		429	if (@SLOT_QUEUE) {
		430	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		431	push @cf::WAIT_FOR_TICK, $signal;
		432	$signal->wait;
		433	} else {
		434	Coro::schedule;
		435	}
269	};	436	}
270	$WRITE_RUNTIME_WATCHER->stop;	437	};
271	$TICK_WATCHER->stop;	438
272	$guard	439	sub get_slot($;$$) {
		440	return if tick_inhibit || $Coro::current == $Coro::main;
		441
		442	my ($time, $pri, $name) = @_;
		443
		444	$time = $TICK * .6 if $time > $TICK * .6;
		445	my $sig = new Coro::Signal;
		446
		447	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		448	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		449	$SLOT_QUEUE->ready;
		450	$sig->wait;
273	}	451	}
274		452
275	=item cf::async { BLOCK }	453	=item cf::async { BLOCK }
276		454
277	Currently the same as Coro::async_pool, meaning you cannot use	455	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		460
283	BEGIN { *async = \&Coro::async_pool }	461	BEGIN { *async = \&Coro::async_pool }
284		462
285	=item cf::sync_job { BLOCK }	463	=item cf::sync_job { BLOCK }
286		464
287	The design of crossfire+ requires that the main coro ($Coro::main) is	465	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	466	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	467	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		468	acceptable.
290		469
291	If it must be done, put the blocking parts into C<sync_job>. This will run	470	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	471	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	472	server will be frozen during this time, so the block should either finish
294	fast or be very important.	473	fast or be very important.
…		…
297		476
298	sub sync_job(&) {	477	sub sync_job(&) {
299	my ($job) = @_;	478	my ($job) = @_;
300		479
301	if ($Coro::current == $Coro::main) {	480	if ($Coro::current == $Coro::main) {
		481	my $time = EV::time;
		482
302	# this is the main coro, too bad, we have to block	483	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	484	# till the operation succeeds, freezing the server :/
304		485
305	# TODO: use suspend/resume instead	486	LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	487
307	my $freeze_guard = freeze_mainloop;	488	my $freeze_guard = freeze_mainloop;
308		489
309	my $busy = 1;	490	my $busy = 1;
310	my @res;	491	my @res;
311		492
312	(async {	493	(async {
		494	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	495	@res = eval { $job->() };
314	warn $@ if $@;	496	warn $@ if $@;
315	undef $busy;	497	undef $busy;
316	})->prio (Coro::PRIO_MAX);	498	})->prio (Coro::PRIO_MAX);
317		499
318	while ($busy) {	500	while ($busy) {
319	Coro::cede or Event::one_event;	501	if (Coro::nready) {
		502	Coro::cede_notself;
		503	} else {
		504	EV::loop EV::LOOP_ONESHOT;
320	}	505	}
		506	}
		507
		508	my $time = EV::time - $time;
		509
		510	$TICK_START += $time; # do not account sync jobs to server load
321		511
322	wantarray ? @res : $res[0]	512	wantarray ? @res : $res[0]
323	} else {	513	} else {
324	# we are in another coroutine, how wonderful, everything just works	514	# we are in another coroutine, how wonderful, everything just works
325		515
…		…
345	$EXT_CORO{$coro+0} = $coro;	535	$EXT_CORO{$coro+0} = $coro;
346		536
347	$coro	537	$coro
348	}	538	}
349		539
350	sub write_runtime {	540	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		541
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	542	Executes the given code block with the given arguments in a seperate
354	or return;	543	process, returning the results. Everything must be serialisable with
		544	Coro::Storable. May, of course, block. Note that the executed sub may
		545	never block itself or use any form of event handling.
355		546
356	my $value = $cf::RUNTIME + 90 + 10;	547	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		548
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	549	sub fork_call(&@) {
361	and return;	550	my ($cb, @args) = @_;
362		551
363	aio_fsync $fh	552	# we seemingly have to make a local copy of the whole thing,
364	and return;	553	# otherwise perl prematurely frees the stuff :/
		554	# TODO: investigate and fix (likely this will be rather laborious)
365		555
366	close $fh	556	my @res = Coro::Util::fork_eval {
367	or return;	557	reset_signals;
		558	&$cb
		559	}, @args;
368		560
369	aio_rename "$runtime~", $runtime	561	wantarray ? @res : $res[-1]
370	and return;	562	}
371		563
		564	=item $coin = coin_from_name $name
		565
		566	=cut
		567
		568	our %coin_alias = (
		569	"silver" => "silvercoin",
		570	"silvercoin" => "silvercoin",
		571	"silvercoins" => "silvercoin",
		572	"gold" => "goldcoin",
		573	"goldcoin" => "goldcoin",
		574	"goldcoins" => "goldcoin",
		575	"platinum" => "platinacoin",
		576	"platinumcoin" => "platinacoin",
		577	"platinumcoins" => "platinacoin",
		578	"platina" => "platinacoin",
		579	"platinacoin" => "platinacoin",
		580	"platinacoins" => "platinacoin",
		581	"royalty" => "royalty",
		582	"royalties" => "royalty",
		583	);
		584
		585	sub coin_from_name($) {
		586	$coin_alias{$_[0]}
		587	? cf::arch::find $coin_alias{$_[0]}
		588	: undef
		589	}
		590
		591	=item $value = cf::db_get $family => $key
		592
		593	Returns a single value from the environment database.
		594
		595	=item cf::db_put $family => $key => $value
		596
		597	Stores the given C<$value> in the family. It can currently store binary
		598	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		599
		600	=item $db = cf::db_table "name"
		601
		602	Create and/or open a new database table. The string must not be "db" and must be unique
		603	within each server.
		604
		605	=cut
		606
		607	sub db_table($) {
		608	my ($name) = @_;
		609	my $db = BDB::db_create $DB_ENV;
		610
		611	eval {
		612	$db->set_flags (BDB::CHKSUM);
		613
		614	utf8::encode $name;
		615	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		616	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		617	cf::cleanup "db_open(db): $!" if $!;
		618	};
		619	cf::cleanup "db_open(db): $@" if $@;
		620
		621	$db
		622	}
		623
		624	our $DB;
		625
		626	sub db_init {
		627	cf::sync_job {
		628	$DB ||= db_table "db";
		629	};
		630	}
		631
		632	sub db_get($$) {
		633	my $key = "$_[0]/$_[1]";
		634
		635	cf::sync_job {
		636	BDB::db_get $DB, undef, $key, my $data;
		637
		638	$! ? ()
		639	: $data
372	1	640	}
		641	}
		642
		643	sub db_put($$$) {
		644	BDB::dbreq_pri 4;
		645	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		646	}
		647
		648	=item cf::cache $id => [$paths...], $processversion => $process
		649
		650	Generic caching function that returns the value of the resource $id,
		651	caching and regenerating as required.
		652
		653	This function can block.
		654
		655	=cut
		656
		657	sub cache {
		658	my ($id, $src, $processversion, $process) = @_;
		659
		660	my $meta =
		661	join "\x00",
		662	$processversion,
		663	map {
		664	aio_stat $_
		665	and Carp::croak "$_: $!";
		666
		667	($_, (stat _)[7,9])
		668	} @$src;
		669
		670	my $dbmeta = db_get cache => "$id/meta";
		671	if ($dbmeta ne $meta) {
		672	# changed, we may need to process
		673
		674	my @data;
		675	my $md5;
		676
		677	for (0 .. $#$src) {
		678	0 <= aio_load $src->[$_], $data[$_]
		679	or Carp::croak "$src->[$_]: $!";
		680	}
		681
		682	# if processing is expensive, check
		683	# checksum first
		684	if (1) {
		685	$md5 =
		686	join "\x00",
		687	$processversion,
		688	map {
		689	cf::cede_to_tick;
		690	($src->[$_], Digest::MD5::md5_hex $data[$_])
		691	} 0.. $#$src;
		692
		693
		694	my $dbmd5 = db_get cache => "$id/md5";
		695	if ($dbmd5 eq $md5) {
		696	db_put cache => "$id/meta", $meta;
		697
		698	return db_get cache => "$id/data";
		699	}
		700	}
		701
		702	my $t1 = Time::HiRes::time;
		703	my $data = $process->(\@data);
		704	my $t2 = Time::HiRes::time;
		705
		706	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		707
		708	db_put cache => "$id/data", $data;
		709	db_put cache => "$id/md5" , $md5;
		710	db_put cache => "$id/meta", $meta;
		711
		712	return $data;
		713	}
		714
		715	db_get cache => "$id/data"
		716	}
		717
		718	=item cf::datalog type => key => value, ...
		719
		720	Log a datalog packet of the given type with the given key-value pairs.
		721
		722	=cut
		723
		724	sub datalog($@) {
		725	my ($type, %kv) = @_;
		726	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	727	}
374		728
375	=back	729	=back
376		730
377	=cut	731	=cut
378		732
379	#############################################################################	733	#############################################################################
380		734
381	=head2 ATTACHABLE OBJECTS	735	=head2 ATTACHABLE OBJECTS
382		736
383	Many objects in crossfire are so-called attachable objects. That means you can	737	Many objects in deliantra are so-called attachable objects. That means you can
384	attach callbacks/event handlers (a collection of which is called an "attachment")	738	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	739	to it. All such attachable objects support the following methods.
386		740
387	In the following description, CLASS can be any of C<global>, C<object>	741	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	742	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	743	Deliantra).
390		744
391	=over 4	745	=over 4
392		746
393	=item $attachable->attach ($attachment, key => $value...)	747	=item $attachable->attach ($attachment, key => $value...)
394		748
…		…
438	=item cf::CLASS::attachment $name, ...	792	=item cf::CLASS::attachment $name, ...
439		793
440	Register an attachment by C<$name> through which attachable objects of the	794	Register an attachment by C<$name> through which attachable objects of the
441	given CLASS can refer to this attachment.	795	given CLASS can refer to this attachment.
442		796
443	Some classes such as crossfire maps and objects can specify attachments	797	Some classes such as deliantra maps and objects can specify attachments
444	that are attached at load/instantiate time, thus the need for a name.	798	that are attached at load/instantiate time, thus the need for a name.
445		799
446	These calls expect any number of the following handler/hook descriptions:	800	These calls expect any number of the following handler/hook descriptions:
447		801
448	=over 4	802	=over 4
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	911	$registry = $CB_TYPE[$object_type] ||= [];
558		912
559	} elsif ($type eq "subtype") {	913	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	914	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	915	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	916	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		917
564	} elsif ($type eq "package") {	918	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	919	my $pkg = shift @arg;
566		920
567	while (my ($name, $id) = each %cb_id) {	921	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	950	_attach $registry, $klass, @attach;
597	}	951	}
598		952
599	$obj->{$name} = \%arg;	953	$obj->{$name} = \%arg;
600	} else {	954	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	955	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	956	}
603		957
604	$obj->{_attachment}{$name} = undef;	958	$obj->{_attachment}{$name} = undef;
605	}	959	}
606		960
…		…
608	if (ref $_[0]) {	962	if (ref $_[0]) {
609	_object_attach @_;	963	_object_attach @_;
610	} else {	964	} else {
611	_attach shift->_attach_registry, @_;	965	_attach shift->_attach_registry, @_;
612	}	966	}
		967	_recalc_want;
613	};	968	};
614		969
615	# all those should be optimised	970	# all those should be optimised
616	sub cf::attachable::detach {	971	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	972	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	975	delete $obj->{_attachment}{$name};
621	reattach ($obj);	976	reattach ($obj);
622	} else {	977	} else {
623	Carp::croak "cannot, currently, detach class attachments";	978	Carp::croak "cannot, currently, detach class attachments";
624	}	979	}
		980	_recalc_want;
625	};	981	};
626		982
627	sub cf::attachable::attached {	983	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	984	my ($obj, $name) = @_;
629		985
…		…
644	";	1000	";
645	die if $@;	1001	die if $@;
646	}	1002	}
647		1003
648	our $override;	1004	our $override;
649	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1005	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
650		1006
651	sub override {	1007	sub override {
652	$override = 1;	1008	$override = 1;
653	@invoke_results = ();	1009	@INVOKE_RESULTS = (@_);
654	}	1010	}
655		1011
656	sub do_invoke {	1012	sub do_invoke {
657	my $event = shift;	1013	my $event = shift;
658	my $callbacks = shift;	1014	my $callbacks = shift;
659		1015
660	@invoke_results = ();	1016	@INVOKE_RESULTS = ();
661		1017
662	local $override;	1018	local $override;
663		1019
664	for (@$callbacks) {	1020	for (@$callbacks) {
665	eval { &{$_->[1]} };	1021	eval { &{$_->[1]} };
…		…
674	}	1030	}
675		1031
676	0	1032	0
677	}	1033	}
678		1034
679	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1035	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
680		1036
681	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1037	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
682		1038
683	Generate an object-specific event with the given arguments.	1039	Generate an object-specific event with the given arguments.
684		1040
685	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1041	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
686	removed in future versions), and there is no public API to access override	1042	removed in future versions), and there is no public API to access override
687	results (if you must, access C<@cf::invoke_results> directly).	1043	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		1044
689	=back	1045	=back
690		1046
691	=cut	1047	=cut
692		1048
693	#############################################################################	1049	#############################################################################
694	# object support	1050	# object support
		1051
		1052	sub _object_equal($$);
		1053	sub _object_equal($$) {
		1054	my ($a, $b) = @_;
		1055
		1056	return 0 unless (ref $a) eq (ref $b);
		1057
		1058	if ("HASH" eq ref $a) {
		1059	my @ka = keys %$a;
		1060	my @kb = keys %$b;
		1061
		1062	return 0 if @ka != @kb;
		1063
		1064	for (0 .. $#ka) {
		1065	return 0 unless $ka[$_] eq $kb[$_];
		1066	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1067	}
		1068
		1069	} elsif ("ARRAY" eq ref $a) {
		1070
		1071	return 0 if @$a != @$b;
		1072
		1073	for (0 .. $#$a) {
		1074	return 0 unless _object_equal $a->[$_], $b->[$_];
		1075	}
		1076
		1077	} elsif ($a ne $b) {
		1078	return 0;
		1079	}
		1080
		1081	1
		1082	}
		1083
		1084	our $SLOW_MERGES;#d#
		1085	sub _can_merge {
		1086	my ($ob1, $ob2) = @_;
		1087
		1088	++$SLOW_MERGES;#d#
		1089
		1090	# we do the slow way here
		1091	return _object_equal $ob1, $ob2
		1092	}
695		1093
696	sub reattach {	1094	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	1095	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	1096	my ($obj) = @_;
699		1097
		1098	# no longer needed after getting rid of delete_package?
700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1099	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		1100
702	my $registry = $obj->registry;	1101	my $registry = $obj->registry;
703		1102
704	@$registry = ();	1103	@$registry = ();
705		1104
…		…
720	cf::attachable->attach (	1119	cf::attachable->attach (
721	prio => -1000000,	1120	prio => -1000000,
722	on_instantiate => sub {	1121	on_instantiate => sub {
723	my ($obj, $data) = @_;	1122	my ($obj, $data) = @_;
724		1123
725	$data = from_json $data;	1124	$data = decode_json $data;
726		1125
727	for (@$data) {	1126	for (@$data) {
728	my ($name, $args) = @$_;	1127	my ($name, $args) = @$_;
729		1128
730	$obj->attach ($name, %{$args || {} });	1129	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1145	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1146	my ($filename, $rdata, $objs) = @_;
748		1147
749	sync_job {	1148	sync_job {
750	if (length $$rdata) {	1149	if (length $$rdata) {
		1150	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1151	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1152	$decname, length $$rdata, scalar @$objs;
753		1153
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1154	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1155	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1156	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1157	if ($cf::USE_FSYNC) {
		1158	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;
757	aio_fsync $fh;	1159	aio_fsync $fh;
		1160	}
758	close $fh;	1161	aio_close $fh;
759		1162
760	if (@$objs) {	1163	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1164	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1165	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1166	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1167	aio_write $fh, 0, (length $data), $data, 0;
		1168	if ($cf::USE_FSYNC) {
		1169	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;
765	aio_fsync $fh;	1170	aio_fsync $fh;
		1171	}
766	close $fh;	1172	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1173	aio_rename "$filename.pst~", "$filename.pst";
768	}	1174	}
769	} else {	1175	} else {
770	aio_unlink "$filename.pst";	1176	aio_unlink "$filename.pst";
771	}	1177	}
772		1178
773	aio_rename "$filename~", $filename;	1179	aio_rename "$filename~", $filename;
		1180
		1181	$filename =~ s%/[^/]+$%%;
		1182	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1183	} else {
775	warn "FATAL: $filename~: $!\n";	1184	warn "unable to save objects: $filename~: $!\n";
776	}	1185	}
777	} else {	1186	} else {
778	aio_unlink $filename;	1187	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
780	}	1189	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	1190	};
788	}	1191	}
789		1192
790	sub object_freezer_as_string {	1193	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1194	my ($rdata, $objs) = @_;
792		1195
…		…
797		1200
798	sub object_thawer_load {	1201	sub object_thawer_load {
799	my ($filename) = @_;	1202	my ($filename) = @_;
800		1203
801	my ($data, $av);	1204	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		1205
806	(aio_load $filename, $data) >= 0	1206	(aio_load $filename, $data) >= 0
807	or return;	1207	or return;
808		1208
809	unless (aio_stat "$filename.pst") {	1209	unless (aio_stat "$filename.pst") {
810	(aio_load "$filename.pst", $av) >= 0	1210	(aio_load "$filename.pst", $av) >= 0
811	or return;	1211	or return;
		1212
812	$av = eval { (Storable::thaw $av)->{objs} };	1213	my $st = eval { Coro::Storable::thaw $av };
		1214	$av = $st->{objs};
813	}	1215	}
814		1216
		1217	utf8::decode (my $decname = $filename);
815	warn sprintf "loading %s (%d)\n",	1218	warn sprintf "loading %s (%d,%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1219	$decname, length $data, scalar @{$av || []};
		1220
817	return ($data, $av);	1221	($data, $av)
818	}	1222	}
		1223
		1224	=head2 COMMAND CALLBACKS
		1225
		1226	=over 4
		1227
		1228	=cut
819		1229
820	#############################################################################	1230	#############################################################################
821	# command handling &c	1231	# command handling &c
822		1232
823	=item cf::register_command $name => \&callback($ob,$args);	1233	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1246	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1247	}
838		1248
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1249	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1250
841	Register a callbackf ro execution when the client sends an extcmd packet.	1251	Register a callback for execution when the client sends an (synchronous)
		1252	extcmd packet. Ext commands will be processed in the order they are
		1253	received by the server, like other user commands. The first argument is
		1254	the logged-in player. Ext commands can only be processed after a player
		1255	has logged in successfully.
842		1256
843	If the callback returns something, it is sent back as if reply was being	1257	If the callback returns something, it is sent back as if reply was being
844	called.	1258	called.
845		1259
		1260	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1261
		1262	Register a callback for execution when the client sends an (asynchronous)
		1263	exticmd packet. Exti commands are processed by the server as soon as they
		1264	are received, i.e. out of order w.r.t. other commands. The first argument
		1265	is a client socket. Exti commands can be received anytime, even before
		1266	log-in.
		1267
		1268	If the callback returns something, it is sent back as if reply was being
		1269	called.
		1270
846	=cut	1271	=cut
847		1272
848	sub register_extcmd {	1273	sub register_extcmd {
849	my ($name, $cb) = @_;	1274	my ($name, $cb) = @_;
850		1275
851	$EXTCMD{$name} = $cb;	1276	$EXTCMD{$name} = $cb;
852	}	1277	}
		1278
		1279	sub register_exticmd {
		1280	my ($name, $cb) = @_;
		1281
		1282	$EXTICMD{$name} = $cb;
		1283	}
		1284
		1285	use File::Glob ();
853		1286
854	cf::player->attach (	1287	cf::player->attach (
855	on_command => sub {	1288	on_command => sub {
856	my ($pl, $name, $params) = @_;	1289	my ($pl, $name, $params) = @_;
857		1290
…		…
865	cf::override;	1298	cf::override;
866	},	1299	},
867	on_extcmd => sub {	1300	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1301	my ($pl, $buf) = @_;
869		1302
870	my $msg = eval { from_json $buf };	1303	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1304
872	if (ref $msg) {	1305	if (ref $msg) {
		1306	my ($type, $reply, @payload) =
		1307	"ARRAY" eq ref $msg
		1308	? @$msg
		1309	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1310
		1311	my @reply;
		1312
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1313	if (my $cb = $EXTCMD{$type}) {
874	if (my %reply = $cb->($pl, $msg)) {	1314	@reply = $cb->($pl, @payload);
875	$pl->ext_reply ($msg->{msgid}, %reply);
876	}
877	}	1315	}
		1316
		1317	$pl->ext_reply ($reply, @reply)
		1318	if $reply;
		1319
878	} else {	1320	} else {
879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1321	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
880	}	1322	}
881		1323
882	cf::override;	1324	cf::override;
883	},	1325	},
884	);	1326	);
885		1327
		1328	# "readahead" all extensions
886	sub load_extension {	1329	sub cache_extensions {
887	my ($path) = @_;	1330	my $grp = IO::AIO::aio_group;
888		1331
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1332	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
890	my $base = $1;	1333	for (grep /\.ext$/, @{$_[0]}) {
891	my $pkg = $1;	1334	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}	1335	}
914	die $@;
915	}	1336	};
916		1337
917	push @EXTS, $pkg;	1338	$grp
918	}	1339	}
919		1340
920	sub load_extensions {	1341	sub load_extensions {
		1342	cf::sync_job {
		1343	my %todo;
		1344
921	for my $ext (<$LIBDIR/*.ext>) {	1345	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1346	next unless -r $path;
923	eval {	1347
924	load_extension $ext;	1348	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1349	my $base = $1;
		1350	my $pkg = $1;
		1351	$pkg =~ s/[^[:word:]]/_/g;
		1352	$pkg = "ext::$pkg";
		1353
		1354	open my $fh, "<:utf8", $path
		1355	or die "$path: $!";
		1356
		1357	my $source = do { local $/; <$fh> };
		1358
		1359	my %ext = (
		1360	path => $path,
		1361	base => $base,
		1362	pkg => $pkg,
		1363	);
		1364
		1365	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1366	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1367
		1368	$ext{source} =
		1369	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1370	. "#line 1 \"$path\"\n{\n"
		1371	. $source
		1372	. "\n};\n1";
		1373
		1374	$todo{$base} = \%ext;
		1375	}
		1376
		1377	my %done;
		1378	while (%todo) {
		1379	my $progress;
		1380
		1381	while (my ($k, $v) = each %todo) {
		1382	for (split /,\s*/, $v->{meta}{depends}) {
		1383	goto skip
		1384	unless exists $done{$_};
		1385	}
		1386
		1387	warn "... loading '$k' into '$v->{pkg}'\n";
		1388
		1389	unless (eval $v->{source}) {
		1390	my $msg = $@ ? "$v->{path}: $@\n"
		1391	: "$v->{base}: extension inactive.\n";
		1392
		1393	if (exists $v->{meta}{mandatory}) {
		1394	warn $msg;
		1395	cf::cleanup "mandatory extension failed to load, exiting.";
		1396	}
		1397
		1398	warn $msg;
		1399	}
		1400
		1401	$done{$k} = delete $todo{$k};
		1402	push @EXTS, $v->{pkg};
		1403	$progress = 1;
925	1	1404	}
926	} or warn "$ext not loaded: $@";	1405
		1406	skip:
		1407	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1408	unless $progress;
		1409	}
927	}	1410	};
928	}	1411	}
929		1412
930	#############################################################################	1413	#############################################################################
931		1414
		1415	=back
		1416
932	=head2 CORE EXTENSIONS	1417	=head2 CORE EXTENSIONS
933		1418
934	Functions and methods that extend core crossfire objects.	1419	Functions and methods that extend core deliantra objects.
935		1420
936	=cut	1421	=cut
937		1422
938	package cf::player;	1423	package cf::player;
939		1424
…		…
941		1426
942	=head3 cf::player	1427	=head3 cf::player
943		1428
944	=over 4	1429	=over 4
945		1430
		1431	=item cf::player::num_playing
		1432
		1433	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1434
		1435	=cut
		1436
		1437	sub num_playing {
		1438	scalar grep
		1439	$_->ob->map
		1440	&& !$_->hidden
		1441	&& !$_->ob->flag (cf::FLAG_WIZ),
		1442	cf::player::list
		1443	}
		1444
946	=item cf::player::find $login	1445	=item cf::player::find $login
947		1446
948	Returns the given player object, loading it if necessary (might block).	1447	Returns the given player object, loading it if necessary (might block).
949		1448
950	=cut	1449	=cut
951		1450
952	sub playerdir($) {	1451	sub playerdir($) {
953	cf::localdir	1452	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1453	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1454	}
959		1455
960	sub path($) {	1456	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1457	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1458
963	(playerdir $login) . "/$login.pl"	1459	(playerdir $login) . "/playerdata"
964	}	1460	}
965		1461
966	sub find_active($) {	1462	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1463	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1464	and $cf::PLAYER{$_[0]}->active
…		…
971		1467
972	sub exists($) {	1468	sub exists($) {
973	my ($login) = @_;	1469	my ($login) = @_;
974		1470
975	$cf::PLAYER{$login}	1471	$cf::PLAYER{$login}
976	or cf::sync_job { !aio_stat path $login }	1472	or !aio_stat path $login
977	}	1473	}
978		1474
979	sub find($) {	1475	sub find($) {
980	return $cf::PLAYER{$_[0]} || do {	1476	return $cf::PLAYER{$_[0]} || do {
981	my $login = $_[0];	1477	my $login = $_[0];
982		1478
983	my $guard = cf::lock_acquire "user_find:$login";	1479	my $guard = cf::lock_acquire "user_find:$login";
984		1480
985	$cf::PLAYER{$_[0]} || do {	1481	$cf::PLAYER{$_[0]} || do {
986	my $pl = load_pl path $login	1482	# rename old playerfiles to new ones
		1483	#TODO: remove when no longer required
		1484	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1485	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1486	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1487	aio_unlink +(playerdir $login) . "/$login.pl";
		1488
		1489	my $f = new_from_file cf::object::thawer path $login
987	or return;	1490	or return;
		1491
		1492	my $pl = cf::player::load_pl $f
		1493	or return;
		1494
		1495	local $cf::PLAYER_LOADING{$login} = $pl;
		1496	$f->resolve_delayed_derefs;
988	$cf::PLAYER{$login} = $pl	1497	$cf::PLAYER{$login} = $pl
989	}	1498	}
990	}	1499	}
991	}	1500	}
992		1501
…		…
1001	return if $pl->{deny_save};	1510	return if $pl->{deny_save};
1002		1511
1003	aio_mkdir playerdir $pl, 0770;	1512	aio_mkdir playerdir $pl, 0770;
1004	$pl->{last_save} = $cf::RUNTIME;	1513	$pl->{last_save} = $cf::RUNTIME;
1005		1514
		1515	cf::get_slot 0.01;
		1516
1006	$pl->save_pl ($path);	1517	$pl->save_pl ($path);
1007	Coro::cede;	1518	cf::cede_to_tick;
1008	}	1519	}
1009		1520
1010	sub new($) {	1521	sub new($) {
1011	my ($login) = @_;	1522	my ($login) = @_;
1012		1523
…		…
1018	$cf::PLAYER{$login} = $self;	1529	$cf::PLAYER{$login} = $self;
1019		1530
1020	$self	1531	$self
1021	}	1532	}
1022		1533
		1534	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1535
		1536	=cut
		1537
		1538	sub send_msg {
		1539	my $ns = shift->ns
		1540	or return;
		1541	$ns->send_msg (@_);
		1542	}
		1543
1023	=item $pl->quit_character	1544	=item $pl->quit_character
1024		1545
1025	Nukes the player without looking back. If logged in, the connection will	1546	Nukes the player without looking back. If logged in, the connection will
1026	be destroyed. May block for a long time.	1547	be destroyed. May block for a long time.
1027		1548
1028	=cut	1549	=cut
1029		1550
1030	sub quit_character {	1551	sub quit_character {
1031	my ($pl) = @_;	1552	my ($pl) = @_;
1032		1553
		1554	my $name = $pl->ob->name;
		1555
1033	$pl->{deny_save} = 1;	1556	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1557	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1035		1558
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1559	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1037	$pl->deactivate;	1560	$pl->deactivate;
		1561	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1562	$pl->ob->check_score;
1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1563	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1039	$pl->ns->destroy if $pl->ns;	1564	$pl->ns->destroy if $pl->ns;
1040		1565
1041	my $path = playerdir $pl;	1566	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1567	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1568	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1569	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1570	$pl->destroy;
		1571
		1572	my $prefix = qr<^~\Q$name\E/>;
		1573
		1574	# nuke player maps
		1575	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1576
1046	IO::AIO::aio_rmtree $temp;	1577	IO::AIO::aio_rmtree $temp;
		1578	}
		1579
		1580	=item $pl->kick
		1581
		1582	Kicks a player out of the game. This destroys the connection.
		1583
		1584	=cut
		1585
		1586	sub kick {
		1587	my ($pl, $kicker) = @_;
		1588
		1589	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1590	$pl->killer ("kicked");
		1591	$pl->ns->destroy;
1047	}	1592	}
1048		1593
1049	=item cf::player::list_logins	1594	=item cf::player::list_logins
1050		1595
1051	Returns am arrayref of all valid playernames in the system, can take a	1596	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1597	while and may block, so not sync_job-capable, ever.
1053		1598
1054	=cut	1599	=cut
1055		1600
1056	sub list_logins {	1601	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1602	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1603	or return [];
1059		1604
1060	my @logins;	1605	my @logins;
1061		1606
1062	for my $login (@$dirs) {	1607	for my $login (@$dirs) {
		1608	my $path = path $login;
		1609
		1610	# a .pst is a dead give-away for a valid player
		1611	# if no pst file found, open and chekc for blocked users
		1612	if (aio_stat "$path.pst") {
1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1613	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1064	aio_read $fh, 0, 512, my $buf, 0 or next;	1614	aio_read $fh, 0, 512, my $buf, 0 or next;
1065	$buf !~ /^password -------------$/m or next; # official not-valid tag	1615	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1616	}
1066		1617
1067	utf8::decode $login;	1618	utf8::decode $login;
1068	push @logins, $login;	1619	push @logins, $login;
1069	}	1620	}
1070		1621
…		…
1097	}	1648	}
1098		1649
1099	\@paths	1650	\@paths
1100	}	1651	}
1101		1652
		1653	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1654
		1655	Expand deliantra pod fragments into protocol xml.
		1656
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1657	=item $player->ext_reply ($msgid, @msg)
1103		1658
1104	Sends an ext reply to the player.	1659	Sends an ext reply to the player.
1105		1660
1106	=cut	1661	=cut
1107		1662
1108	sub ext_reply($$$%) {	1663	sub ext_reply($$@) {
1109	my ($self, $id, %msg) = @_;	1664	my ($self, $id, @msg) = @_;
1110		1665
1111	$msg{msgid} = $id;	1666	$self->ns->ext_reply ($id, @msg)
1112
1113	$self->send ("ext " . cf::to_json \%msg);
1114	}	1667	}
1115		1668
1116	package cf;	1669	=item $player->ext_msg ($type, @msg)
		1670
		1671	Sends an ext event to the client.
		1672
		1673	=cut
		1674
		1675	sub ext_msg($$@) {
		1676	my ($self, $type, @msg) = @_;
		1677
		1678	$self->ns->ext_msg ($type, @msg);
		1679	}
		1680
		1681	=head3 cf::region
		1682
		1683	=over 4
		1684
		1685	=cut
		1686
		1687	package cf::region;
		1688
		1689	=item cf::region::find_by_path $path
		1690
		1691	Tries to decuce the likely region for a map knowing only its path.
		1692
		1693	=cut
		1694
		1695	sub find_by_path($) {
		1696	my ($path) = @_;
		1697
		1698	my ($match, $specificity);
		1699
		1700	for my $region (list) {
		1701	if ($region->{match} && $path =~ $region->{match}) {
		1702	($match, $specificity) = ($region, $region->specificity)
		1703	if $region->specificity > $specificity;
		1704	}
		1705	}
		1706
		1707	$match
		1708	}
1117		1709
1118	=back	1710	=back
1119
1120		1711
1121	=head3 cf::map	1712	=head3 cf::map
1122		1713
1123	=over 4	1714	=over 4
1124		1715
…		…
1136	our $MAX_RESET = 3600;	1727	our $MAX_RESET = 3600;
1137	our $DEFAULT_RESET = 3000;	1728	our $DEFAULT_RESET = 3000;
1138		1729
1139	sub generate_random_map {	1730	sub generate_random_map {
1140	my ($self, $rmp) = @_;	1731	my ($self, $rmp) = @_;
		1732
		1733	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1734
1141	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1142	$self->_create_random_map (	1736	$self->_create_random_map (
1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1179	my ($self, $merge) = @_;	1773	my ($self, $merge) = @_;
1180		1774
1181	# we have to keep some variables in memory intact	1775	# we have to keep some variables in memory intact
1182	local $self->{path};	1776	local $self->{path};
1183	local $self->{load_path};	1777	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		1778
1187	$self->SUPER::thawer_merge ($merge);	1779	$self->SUPER::thawer_merge ($merge);
1188	}	1780	}
1189		1781
1190	sub normalise {	1782	sub normalise {
…		…
1237	$self->init; # pass $1 etc.	1829	$self->init; # pass $1 etc.
1238	return $self;	1830	return $self;
1239	}	1831	}
1240	}	1832	}
1241		1833
1242	Carp::carp "unable to resolve path '$path' (base '$base').";	1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
1243	()	1835	()
1244	}	1836	}
1245		1837
1246	sub init {	1838	sub init {
1247	my ($self) = @_;	1839	my ($self) = @_;
…		…
1262		1854
1263	# the original (read-only) location	1855	# the original (read-only) location
1264	sub load_path {	1856	sub load_path {
1265	my ($self) = @_;	1857	my ($self) = @_;
1266		1858
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1859	"$MAPDIR/$self->{path}.map"
1268	}	1860	}
1269		1861
1270	# the temporary/swap location	1862	# the temporary/swap location
1271	sub save_path {	1863	sub save_path {
1272	my ($self) = @_;	1864	my ($self) = @_;
1273		1865
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1867	"$TMPDIR/$path.map"
1276	}	1868	}
1277		1869
1278	# the unique path, undef == no special unique path	1870	# the unique path, undef == no special unique path
1279	sub uniq_path {	1871	sub uniq_path {
1280	my ($self) = @_;	1872	my ($self) = @_;
1281		1873
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1875	"$UNIQUEDIR/$path"
1284	}	1876	}
1285		1877
1286	# and all this just because we cannot iterate over	1878	sub decay_objects {
1287	# all maps in C++...
1288	sub change_all_map_light {
1289	my ($change) = @_;	1879	my ($self) = @_;
1290		1880
1291	$_->change_map_light ($change)	1881	return if $self->{deny_reset};
1292	for grep $_->outdoor, values %cf::MAP;	1882
		1883	$self->do_decay_objects;
1293	}	1884	}
1294		1885
1295	sub unlink_save {	1886	sub unlink_save {
1296	my ($self) = @_;	1887	my ($self) = @_;
1297		1888
1298	utf8::encode (my $save = $self->save_path);	1889	utf8::encode (my $save = $self->save_path);
1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1890	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1891	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1301
1302	#d#TODO remove .map and also nuke
1303	$save =~ s/\.map// or return;#d#
1304	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1305	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1306	}	1892	}
1307		1893
1308	sub load_header_from($) {	1894	sub load_header_from($) {
1309	my ($self, $path) = @_;	1895	my ($self, $path) = @_;
1310		1896
1311	utf8::encode $path;	1897	utf8::encode $path;
1312	#aio_open $path, O_RDONLY, 0	1898	my $f = new_from_file cf::object::thawer $path
1313	# or return;
1314
1315	$self->_load_header ($path)
1316	or return;	1899	or return;
		1900
		1901	$self->_load_header ($f)
		1902	or return;
		1903
		1904	local $MAP_LOADING{$self->{path}} = $self;
		1905	$f->resolve_delayed_derefs;
1317		1906
1318	$self->{load_path} = $path;	1907	$self->{load_path} = $path;
1319		1908
1320	1	1909	1
1321	}	1910	}
…		…
1360	$self->load_header_orig	1949	$self->load_header_orig
1361	or return;	1950	or return;
1362	$self->prepare_orig;	1951	$self->prepare_orig;
1363	}	1952	}
1364		1953
		1954	$self->{deny_reset} = 1
		1955	if $self->no_reset;
		1956
		1957	$self->default_region (cf::region::find_by_path $self->{path})
		1958	unless $self->default_region;
		1959
1365	1	1960	1
1366	}	1961	}
1367		1962
1368	sub find;	1963	sub find;
1369	sub find {	1964	sub find {
1370	my ($path, $origin) = @_;	1965	my ($path, $origin) = @_;
1371		1966
1372	$path = normalise $path, $origin && $origin->path;	1967	$path = normalise $path, $origin && $origin->path;
1373		1968
		1969	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1374	cf::lock_wait "map_find:$path";	1970	my $guard2 = cf::lock_acquire "map_find:$path";
1375		1971
1376	$cf::MAP{$path} || do {	1972	$cf::MAP{$path} || do {
1377	my $guard = cf::lock_acquire "map_find:$path";
1378	my $map = new_from_path cf::map $path	1973	my $map = new_from_path cf::map $path
1379	or return;	1974	or return;
1380		1975
1381	$map->{last_save} = $cf::RUNTIME;	1976	$map->{last_save} = $cf::RUNTIME;
1382		1977
1383	$map->load_header	1978	$map->load_header
1384	or return;	1979	or return;
1385		1980
1386	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1981	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1387	# doing this can freeze the server in a sync job, obviously	1982	# doing this can freeze the server in a sync job, obviously
1388	#$cf::WAIT_FOR_TICK->wait;	1983	#$cf::WAIT_FOR_TICK->wait;
		1984	undef $guard2;
		1985	undef $guard1;
1389	$map->reset;	1986	$map->reset;
1390	undef $guard;
1391	return find $path;	1987	return find $path;
1392	}	1988	}
1393		1989
1394	$cf::MAP{$path} = $map	1990	$cf::MAP{$path} = $map
1395	}	1991	}
…		…
1402	my ($self) = @_;	1998	my ($self) = @_;
1403		1999
1404	local $self->{deny_reset} = 1; # loading can take a long time	2000	local $self->{deny_reset} = 1; # loading can take a long time
1405		2001
1406	my $path = $self->{path};	2002	my $path = $self->{path};
		2003
		2004	{
1407	my $guard = cf::lock_acquire "map_load:$path";	2005	my $guard = cf::lock_acquire "map_data:$path";
1408		2006
		2007	return unless $self->valid;
1409	return if $self->in_memory != cf::MAP_SWAPPED;	2008	return unless $self->in_memory == cf::MAP_SWAPPED;
1410		2009
1411	$self->in_memory (cf::MAP_LOADING);	2010	$self->in_memory (cf::MAP_LOADING);
1412		2011
1413	$self->alloc;	2012	$self->alloc;
1414		2013
1415	$self->pre_load;	2014	$self->pre_load;
		2015	cf::cede_to_tick;
1416		2016
1417	$self->_load_objects ($self->{load_path}, 1)	2017	my $f = new_from_file cf::object::thawer $self->{load_path};
		2018	$f->skip_block;
		2019	$self->_load_objects ($f)
1418	or return;	2020	or return;
1419		2021
1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2022	$self->post_load_original
1421	if delete $self->{load_original};	2023	if delete $self->{load_original};
1422		2024
1423	if (my $uniq = $self->uniq_path) {	2025	if (my $uniq = $self->uniq_path) {
1424	utf8::encode $uniq;	2026	utf8::encode $uniq;
1425	if (aio_open $uniq, O_RDONLY, 0) {	2027	unless (aio_stat $uniq) {
		2028	if (my $f = new_from_file cf::object::thawer $uniq) {
1426	$self->clear_unique_items;	2029	$self->clear_unique_items;
1427	$self->_load_objects ($uniq, 0);	2030	$self->_load_objects ($f);
		2031	$f->resolve_delayed_derefs;
		2032	}
1428	}	2033	}
1429	}	2034	}
1430		2035
1431	Coro::cede;	2036	$f->resolve_delayed_derefs;
1432		2037
		2038	cf::cede_to_tick;
1433	# now do the right thing for maps	2039	# now do the right thing for maps
1434	$self->link_multipart_objects;	2040	$self->link_multipart_objects;
1435
1436	unless ($self->{deny_activate}) {
1437	$self->decay_objects;
1438	$self->fix_auto_apply;
1439	$self->update_buttons;
1440	Coro::cede;
1441	$self->set_darkness_map;
1442	$self->difficulty ($self->estimate_difficulty)	2041	$self->difficulty ($self->estimate_difficulty)
1443	unless $self->difficulty;	2042	unless $self->difficulty;
1444	Coro::cede;	2043	cf::cede_to_tick;
		2044
		2045	unless ($self->{deny_activate}) {
		2046	$self->decay_objects;
		2047	$self->fix_auto_apply;
		2048	$self->update_buttons;
		2049	cf::cede_to_tick;
1445	$self->activate;	2050	$self->activate;
		2051	}
		2052
		2053	$self->{last_save} = $cf::RUNTIME;
		2054	$self->last_access ($cf::RUNTIME);
		2055
		2056	$self->in_memory (cf::MAP_ACTIVE);
1446	}	2057	}
1447		2058
1448	$self->post_load;	2059	$self->post_load;
1449
1450	$self->in_memory (cf::MAP_IN_MEMORY);
1451	}	2060	}
1452		2061
1453	sub customise_for {	2062	sub customise_for {
1454	my ($self, $ob) = @_;	2063	my ($self, $ob) = @_;
1455		2064
1456	return find "~" . $ob->name . "/" . $self->{path}	2065	return find "~" . $ob->name . "/" . $self->{path}
1457	if $self->per_player;	2066	if $self->per_player;
1458		2067
		2068	# return find "?party/" . $ob->name . "/" . $self->{path}
		2069	# if $self->per_party;
		2070
1459	$self	2071	$self
1460	}	2072	}
1461		2073
1462	# find and load all maps in the 3x3 area around a map	2074	# find and load all maps in the 3x3 area around a map
1463	sub load_diag {	2075	sub load_neighbours {
1464	my ($map) = @_;	2076	my ($map) = @_;
1465		2077
1466	my @diag; # diagonal neighbours	2078	my @neigh; # diagonal neighbours
1467		2079
1468	for (0 .. 3) {	2080	for (0 .. 3) {
1469	my $neigh = $map->tile_path ($_)	2081	my $neigh = $map->tile_path ($_)
1470	or next;	2082	or next;
1471	$neigh = find $neigh, $map	2083	$neigh = find $neigh, $map
1472	or next;	2084	or next;
1473	$neigh->load;	2085	$neigh->load;
1474		2086
		2087	push @neigh,
1475	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2088	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1476	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2089	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1477	}	2090	}
1478		2091
1479	for (@diag) {	2092	for (grep defined $_->[0], @neigh) {
		2093	my ($path, $origin) = @$_;
1480	my $neigh = find @$_	2094	my $neigh = find $path, $origin
1481	or next;	2095	or next;
1482	$neigh->load;	2096	$neigh->load;
1483	}	2097	}
1484	}	2098	}
1485		2099
…		…
1490	}	2104	}
1491		2105
1492	sub do_load_sync {	2106	sub do_load_sync {
1493	my ($map) = @_;	2107	my ($map) = @_;
1494		2108
		2109	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2110	if $Coro::current == $Coro::main;
		2111
1495	cf::sync_job { $map->load };	2112	cf::sync_job { $map->load };
1496	}	2113	}
1497		2114
1498	our %MAP_PREFETCH;	2115	our %MAP_PREFETCH;
1499	our $MAP_PREFETCHER = undef;	2116	our $MAP_PREFETCHER = undef;
1500		2117
1501	sub find_async {	2118	sub find_async {
1502	my ($path, $origin) = @_;	2119	my ($path, $origin, $load) = @_;
1503		2120
1504	$path = normalise $path, $origin && $origin->{path};	2121	$path = normalise $path, $origin && $origin->{path};
1505		2122
1506	if (my $map = $cf::MAP{$path}) {	2123	if (my $map = $cf::MAP{$path}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2124	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1508	}	2125	}
1509		2126
1510	undef $MAP_PREFETCH{$path};	2127	$MAP_PREFETCH{$path} |= $load;
		2128
1511	$MAP_PREFETCHER ||= cf::async {	2129	$MAP_PREFETCHER ||= cf::async {
		2130	$Coro::current->{desc} = "map prefetcher";
		2131
1512	while (%MAP_PREFETCH) {	2132	while (%MAP_PREFETCH) {
1513	for my $path (keys %MAP_PREFETCH) {	2133	while (my ($k, $v) = each %MAP_PREFETCH) {
1514	my $map = find $path	2134	if (my $map = find $k) {
1515	or next;
1516	$map->load;	2135	$map->load if $v;
		2136	}
1517		2137
1518	delete $MAP_PREFETCH{$path};	2138	delete $MAP_PREFETCH{$k};
1519	}	2139	}
1520	}	2140	}
1521	undef $MAP_PREFETCHER;	2141	undef $MAP_PREFETCHER;
1522	};	2142	};
1523	$MAP_PREFETCHER->prio (6);	2143	$MAP_PREFETCHER->prio (6);
…		…
1526	}	2146	}
1527		2147
1528	sub save {	2148	sub save {
1529	my ($self) = @_;	2149	my ($self) = @_;
1530		2150
1531	my $lock = cf::lock_acquire "map_data:" . $self->path;	2151	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2152
1533	$self->{last_save} = $cf::RUNTIME;	2153	$self->{last_save} = $cf::RUNTIME;
1534		2154
1535	return unless $self->dirty;	2155	return unless $self->dirty;
1536		2156
…		…
1542	return if $self->{deny_save};	2162	return if $self->{deny_save};
1543		2163
1544	local $self->{last_access} = $self->last_access;#d#	2164	local $self->{last_access} = $self->last_access;#d#
1545		2165
1546	cf::async {	2166	cf::async {
		2167	$Coro::current->{desc} = "map player save";
1547	$_->contr->save for $self->players;	2168	$_->contr->save for $self->players;
1548	};	2169	};
		2170
		2171	cf::get_slot 0.02;
1549		2172
1550	if ($uniq) {	2173	if ($uniq) {
1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2174	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1552	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2175	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1553	} else {	2176	} else {
…		…
1559	my ($self) = @_;	2182	my ($self) = @_;
1560		2183
1561	# save first because save cedes	2184	# save first because save cedes
1562	$self->save;	2185	$self->save;
1563		2186
1564	my $lock = cf::lock_acquire "map_data:" . $self->path;	2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
1565		2188
1566	return if $self->players;	2189	return if $self->players;
1567	return if $self->in_memory != cf::MAP_IN_MEMORY;	2190	return if $self->in_memory != cf::MAP_ACTIVE;
1568	return if $self->{deny_save};	2191	return if $self->{deny_save};
1569		2192
		2193	$self->in_memory (cf::MAP_SWAPPED);
		2194
		2195	$self->deactivate;
		2196	$_->clear_links_to ($self) for values %cf::MAP;
1570	$self->clear;	2197	$self->clear;
1571	$self->in_memory (cf::MAP_SWAPPED);
1572	}	2198	}
1573		2199
1574	sub reset_at {	2200	sub reset_at {
1575	my ($self) = @_;	2201	my ($self) = @_;
1576		2202
1577	# TODO: safety, remove and allow resettable per-player maps	2203	# TODO: safety, remove and allow resettable per-player maps
1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
1579	return 1e99 if $self->{deny_reset};	2204	return 1e99 if $self->{deny_reset};
1580		2205
1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2206	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1582	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2207	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1583		2208
…		…
1594	my ($self) = @_;	2219	my ($self) = @_;
1595		2220
1596	my $lock = cf::lock_acquire "map_data:$self->{path}";	2221	my $lock = cf::lock_acquire "map_data:$self->{path}";
1597		2222
1598	return if $self->players;	2223	return if $self->players;
1599	return if $self->isa ("ext::map_per_player");#d#
1600		2224
1601	warn "resetting map ", $self->path;#d#	2225	warn "resetting map ", $self->path;
		2226
		2227	$self->in_memory (cf::MAP_SWAPPED);
		2228
		2229	# need to save uniques path
		2230	unless ($self->{deny_save}) {
		2231	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2232
		2233	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2234	if $uniq;
		2235	}
1602		2236
1603	delete $cf::MAP{$self->path};	2237	delete $cf::MAP{$self->path};
1604		2238
1605	$self->in_memory (cf::MAP_SWAPPED);	2239	$self->deactivate;
		2240	$_->clear_links_to ($self) for values %cf::MAP;
1606	$self->clear;	2241	$self->clear;
1607
1608	$_->clear_links_to ($self) for values %cf::MAP;
1609		2242
1610	$self->unlink_save;	2243	$self->unlink_save;
1611	$self->destroy;	2244	$self->destroy;
1612	}	2245	}
1613		2246
1614	my $nuke_counter = "aaaa";	2247	my $nuke_counter = "aaaa";
1615		2248
1616	sub nuke {	2249	sub nuke {
1617	my ($self) = @_;	2250	my ($self) = @_;
1618		2251
		2252	{
		2253	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2254
1619	delete $cf::MAP{$self->path};	2255	delete $cf::MAP{$self->path};
1620		2256
1621	$self->unlink_save;	2257	$self->unlink_save;
1622		2258
1623	bless $self, "cf::map";	2259	bless $self, "cf::map";
1624	delete $self->{deny_reset};	2260	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2261	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2262	$self->reset_timeout (1);
1627	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2263	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1628		2264
1629	$cf::MAP{$self->path} = $self;	2265	$cf::MAP{$self->path} = $self;
		2266	}
1630		2267
1631	$self->reset; # polite request, might not happen	2268	$self->reset; # polite request, might not happen
		2269	}
		2270
		2271	=item $maps = cf::map::tmp_maps
		2272
		2273	Returns an arrayref with all map paths of currently instantiated and saved
		2274	maps. May block.
		2275
		2276	=cut
		2277
		2278	sub tmp_maps() {
		2279	[
		2280	map {
		2281	utf8::decode $_;
		2282	/\.map$/
		2283	? normalise $_
		2284	: ()
		2285	} @{ aio_readdir $TMPDIR or [] }
		2286	]
		2287	}
		2288
		2289	=item $maps = cf::map::random_maps
		2290
		2291	Returns an arrayref with all map paths of currently instantiated and saved
		2292	random maps. May block.
		2293
		2294	=cut
		2295
		2296	sub random_maps() {
		2297	[
		2298	map {
		2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise "?random/$_"
		2302	: ()
		2303	} @{ aio_readdir $RANDOMDIR or [] }
		2304	]
1632	}	2305	}
1633		2306
1634	=item cf::map::unique_maps	2307	=item cf::map::unique_maps
1635		2308
1636	Returns an arrayref of paths of all shared maps that have	2309	Returns an arrayref of paths of all shared maps that have
1637	instantiated unique items. May block.	2310	instantiated unique items. May block.
1638		2311
1639	=cut	2312	=cut
1640		2313
1641	sub unique_maps() {	2314	sub unique_maps() {
1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2315	[
1643	or return;	2316	map {
1644
1645	my @paths;
1646
1647	for (@$files) {
1648	utf8::decode $_;	2317	utf8::decode $_;
1649	next if /\.pst$/;	2318	s/\.map$//; # TODO future compatibility hack
1650	next unless /^$PATH_SEP/o;	2319	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1651		2320	? ()
1652	push @paths, cf::map::normalise $_;	2321	: normalise $_
		2322	} @{ aio_readdir $UNIQUEDIR or [] }
1653	}	2323	]
1654
1655	\@paths
1656	}	2324	}
1657
1658	package cf;
1659		2325
1660	=back	2326	=back
1661		2327
1662	=head3 cf::object	2328	=head3 cf::object
1663		2329
…		…
1667		2333
1668	=over 4	2334	=over 4
1669		2335
1670	=item $ob->inv_recursive	2336	=item $ob->inv_recursive
1671		2337
1672	Returns the inventory of the object _and_ their inventories, recursively.	2338	Returns the inventory of the object I<and> their inventories, recursively,
		2339	but I<not> the object itself.
1673		2340
1674	=cut	2341	=cut
1675		2342
1676	sub inv_recursive_;	2343	sub inv_recursive_;
1677	sub inv_recursive_ {	2344	sub inv_recursive_ {
…		…
1680		2347
1681	sub inv_recursive {	2348	sub inv_recursive {
1682	inv_recursive_ inv $_[0]	2349	inv_recursive_ inv $_[0]
1683	}	2350	}
1684		2351
		2352	=item $ref = $ob->ref
		2353
		2354	Creates and returns a persistent reference to an object that can be stored as a string.
		2355
		2356	=item $ob = cf::object::deref ($refstring)
		2357
		2358	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2359	even if the object actually exists. May block.
		2360
		2361	=cut
		2362
		2363	sub deref {
		2364	my ($ref) = @_;
		2365
		2366	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2367	my ($uuid, $name) = ($1, $2);
		2368	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2369	or return;
		2370	$pl->ob->uuid eq $uuid
		2371	or return;
		2372
		2373	$pl->ob
		2374	} else {
		2375	warn "$ref: cannot resolve object reference\n";
		2376	undef
		2377	}
		2378	}
		2379
1685	package cf;	2380	package cf;
1686		2381
1687	=back	2382	=back
1688		2383
1689	=head3 cf::object::player	2384	=head3 cf::object::player
…		…
1695	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2390	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1696	can be C<undef>. Does the right thing when the player is currently in a	2391	can be C<undef>. Does the right thing when the player is currently in a
1697	dialogue with the given NPC character.	2392	dialogue with the given NPC character.
1698		2393
1699	=cut	2394	=cut
		2395
		2396	our $SAY_CHANNEL = {
		2397	id => "say",
		2398	title => "Map",
		2399	reply => "say ",
		2400	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2401	};
		2402
		2403	our $CHAT_CHANNEL = {
		2404	id => "chat",
		2405	title => "Chat",
		2406	reply => "chat ",
		2407	tooltip => "Player chat and shouts, global to the server.",
		2408	};
1700		2409
1701	# rough implementation of a future "reply" method that works	2410	# rough implementation of a future "reply" method that works
1702	# with dialog boxes.	2411	# with dialog boxes.
1703	#TODO: the first argument must go, split into a $npc->reply_to ( method	2412	#TODO: the first argument must go, split into a $npc->reply_to ( method
1704	sub cf::object::player::reply($$$;$) {	2413	sub cf::object::player::reply($$$;$) {
…		…
1706		2415
1707	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2416	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1708		2417
1709	if ($self->{record_replies}) {	2418	if ($self->{record_replies}) {
1710	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2419	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2420
1711	} else {	2421	} else {
		2422	my $pl = $self->contr;
		2423
		2424	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2425	my $dialog = $pl->{npc_dialog};
		2426	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2427
		2428	} else {
1712	$msg = $npc->name . " says: $msg" if $npc;	2429	$msg = $npc->name . " says: $msg" if $npc;
1713	$self->message ($msg, $flags);	2430	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2431	}
1714	}	2432	}
		2433	}
		2434
		2435	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2436
		2437	=cut
		2438
		2439	sub cf::object::send_msg {
		2440	my $pl = shift->contr
		2441	or return;
		2442	$pl->send_msg (@_);
1715	}	2443	}
1716		2444
1717	=item $player_object->may ("access")	2445	=item $player_object->may ("access")
1718		2446
1719	Returns wether the given player is authorized to access resource "access"	2447	Returns wether the given player is authorized to access resource "access"
…		…
1732		2460
1733	=item $player_object->enter_link	2461	=item $player_object->enter_link
1734		2462
1735	Freezes the player and moves him/her to a special map (C<{link}>).	2463	Freezes the player and moves him/her to a special map (C<{link}>).
1736		2464
1737	The player should be reasonably safe there for short amounts of time. You	2465	The player should be reasonably safe there for short amounts of time (e.g.
1738	I<MUST> call C<leave_link> as soon as possible, though.	2466	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2467	though, as the palyer cannot control the character while it is on the link
		2468	map.
1739		2469
1740	Will never block.	2470	Will never block.
1741		2471
1742	=item $player_object->leave_link ($map, $x, $y)	2472	=item $player_object->leave_link ($map, $x, $y)
1743		2473
…		…
1766	$self->deactivate_recursive;	2496	$self->deactivate_recursive;
1767		2497
1768	return if UNIVERSAL::isa $self->map, "ext::map_link";	2498	return if UNIVERSAL::isa $self->map, "ext::map_link";
1769		2499
1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1771	if $self->map;	2501	if $self->map && $self->map->{path} ne "{link}";
1772		2502
1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2503	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1774	}	2504	}
1775		2505
1776	sub cf::object::player::leave_link {	2506	sub cf::object::player::leave_link {
1777	my ($self, $map, $x, $y) = @_;	2507	my ($self, $map, $x, $y) = @_;
		2508
		2509	return unless $self->contr->active;
1778		2510
1779	my $link_pos = delete $self->{_link_pos};	2511	my $link_pos = delete $self->{_link_pos};
1780		2512
1781	unless ($map) {	2513	unless ($map) {
1782	# restore original map position	2514	# restore original map position
…		…
1796	# use -1 or undef as default coordinates, not 0, 0	2528	# use -1 or undef as default coordinates, not 0, 0
1797	($x, $y) = ($map->enter_x, $map->enter_y)	2529	($x, $y) = ($map->enter_x, $map->enter_y)
1798	if $x <=0 && $y <= 0;	2530	if $x <=0 && $y <= 0;
1799		2531
1800	$map->load;	2532	$map->load;
1801	$map->load_diag;	2533	$map->load_neighbours;
1802		2534
1803	return unless $self->contr->active;	2535	return unless $self->contr->active;
		2536
		2537	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2538	$self->enter_map ($map, $x, $y);
		2539
		2540	# only activate afterwards, to support waiting in hooks
1804	$self->activate_recursive;	2541	$self->activate_recursive;
1805	$self->enter_map ($map, $x, $y);
1806	}	2542	}
1807		2543
1808	cf::player->attach (	2544	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1809	on_logout => sub {
1810	my ($pl) = @_;
1811		2545
1812	# abort map switching before logout	2546	Moves the player to the given map-path and coordinates by first freezing
1813	if ($pl->ob->{_link_pos}) {	2547	her, loading and preparing them map, calling the provided $check callback
1814	cf::sync_job {	2548	that has to return the map if sucecssful, and then unfreezes the player on
1815	$pl->ob->leave_link	2549	the new (success) or old (failed) map position. In either case, $done will
1816	};	2550	be called at the end of this process.
1817	}
1818	},
1819	on_login => sub {
1820	my ($pl) = @_;
1821		2551
1822	# try to abort aborted map switching on player login :)	2552	Note that $check will be called with a potentially non-loaded map, so if
1823	# should happen only on crashes	2553	it needs a loaded map it has to call C<< ->load >>.
1824	if ($pl->ob->{_link_pos}) {
1825	$pl->ob->enter_link;
1826	(async {
1827	# we need this sleep as the login has a concurrent enter_exit running
1828	# and this sleep increases chances of the player not ending up in scorn
1829	$pl->ob->reply (undef,
1830	"There was an internal problem at your last logout, "
1831	. "the server will try to bring you to your intended destination in a second.",
1832	cf::NDI_RED);
1833	Coro::Timer::sleep 1;
1834	$pl->ob->leave_link;
1835	})->prio (2);
1836	}
1837	},
1838	);
1839		2554
1840	=item $player_object->goto ($path, $x, $y)
1841
1842	=cut	2555	=cut
		2556
		2557	our $GOTOGEN;
1843		2558
1844	sub cf::object::player::goto {	2559	sub cf::object::player::goto {
1845	my ($self, $path, $x, $y) = @_;	2560	my ($self, $path, $x, $y, $check, $done) = @_;
		2561
		2562	# do generation counting so two concurrent goto's will be executed in-order
		2563	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1846		2564
1847	$self->enter_link;	2565	$self->enter_link;
1848		2566
1849	(async {	2567	(async {
		2568	$Coro::current->{desc} = "player::goto $path $x $y";
		2569
		2570	# *tag paths override both path and x|y
		2571	if ($path =~ /^\*(.*)$/) {
		2572	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2573	my $ob = $obs[rand @obs];
		2574
		2575	# see if we actually can go there
		2576	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2577	$ob = $obs[rand @obs];
		2578	} else {
		2579	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2580	}
		2581	# else put us there anyways for now #d#
		2582
		2583	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2584	} else {
		2585	($path, $x, $y) = (undef, undef, undef);
		2586	}
		2587	}
		2588
1850	my $map = eval {	2589	my $map = eval {
1851	my $map = cf::map::find $path;	2590	my $map = defined $path ? cf::map::find $path : undef;
		2591
		2592	if ($map) {
1852	$map = $map->customise_for ($self) if $map;	2593	$map = $map->customise_for ($self);
		2594	$map = $check->($map) if $check && $map;
		2595	} else {
		2596	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2597	}
		2598
1853	$map	2599	$map
		2600	};
		2601
		2602	if ($@) {
		2603	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2604	LOG llevError | logBacktrace, Carp::longmess $@;
1854	} or	2605	}
1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1856		2606
		2607	if ($gen == $self->{_goto_generation}) {
		2608	delete $self->{_goto_generation};
1857	$self->leave_link ($map, $x, $y);	2609	$self->leave_link ($map, $x, $y);
		2610	}
		2611
		2612	$done->() if $done;
1858	})->prio (1);	2613	})->prio (1);
1859	}	2614	}
1860		2615
1861	=item $player_object->enter_exit ($exit_object)	2616	=item $player_object->enter_exit ($exit_object)
1862		2617
…		…
1882	}	2637	}
1883		2638
1884	sub prepare_random_map {	2639	sub prepare_random_map {
1885	my ($exit) = @_;	2640	my ($exit) = @_;
1886		2641
1887	my $guard = cf::lock_acquire "exit_prepare:$exit";
1888
1889	# all this does is basically replace the /! path by	2642	# all this does is basically replace the /! path by
1890	# a new random map path (?random/...) with a seed	2643	# a new random map path (?random/...) with a seed
1891	# that depends on the exit object	2644	# that depends on the exit object
1892		2645
1893	my $rmp = parse_random_map_params $exit->msg;	2646	my $rmp = parse_random_map_params $exit->msg;
…		…
1895	if ($exit->map) {	2648	if ($exit->map) {
1896	$rmp->{region} = $exit->region->name;	2649	$rmp->{region} = $exit->region->name;
1897	$rmp->{origin_map} = $exit->map->path;	2650	$rmp->{origin_map} = $exit->map->path;
1898	$rmp->{origin_x} = $exit->x;	2651	$rmp->{origin_x} = $exit->x;
1899	$rmp->{origin_y} = $exit->y;	2652	$rmp->{origin_y} = $exit->y;
		2653
		2654	$exit->map->touch;
1900	}	2655	}
1901		2656
1902	$rmp->{random_seed} ||= $exit->random_seed;	2657	$rmp->{random_seed} ||= $exit->random_seed;
1903		2658
1904	my $data = cf::to_json $rmp;	2659	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1905	my $md5 = Digest::MD5::md5_hex $data;	2660	my $md5 = Digest::MD5::md5_hex $data;
1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2661	my $meta = "$RANDOMDIR/$md5.meta";
1907		2662
1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2663	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1909	aio_write $fh, 0, (length $data), $data, 0;	2664	aio_write $fh, 0, (length $data), $data, 0;
1910	undef $fh;	2665	undef $fh;
1911	aio_rename "$meta~", $meta;	2666	aio_rename "$meta~", $meta;
1912		2667
		2668	my $slaying = "?random/$md5";
		2669
		2670	if ($exit->valid) {
1913	$exit->slaying ("?random/$md5");	2671	$exit->slaying ("?random/$md5");
1914	$exit->msg (undef);	2672	$exit->msg (undef);
		2673	}
1915	}	2674	}
1916	}	2675	}
1917		2676
1918	sub cf::object::player::enter_exit {	2677	sub cf::object::player::enter_exit {
1919	my ($self, $exit) = @_;	2678	my ($self, $exit) = @_;
1920		2679
1921	return unless $self->type == cf::PLAYER;	2680	return unless $self->type == cf::PLAYER;
1922		2681
1923	if ($exit->slaying eq "/!") {
1924	#TODO: this should de-fi-ni-te-ly not be a sync-job
1925	cf::sync_job { prepare_random_map $exit };
1926	}
1927
1928	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1929	my $hp = $exit->stats->hp;
1930	my $sp = $exit->stats->sp;
1931
1932	$self->enter_link;	2682	$self->enter_link;
1933		2683
1934	(async {	2684	(async {
1935	$self->deactivate_recursive; # just to be sure	2685	$Coro::current->{desc} = "enter_exit";
		2686
1936	unless (eval {	2687	unless (eval {
		2688	$self->deactivate_recursive; # just to be sure
		2689
		2690	# random map handling
		2691	{
		2692	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2693
		2694	prepare_random_map $exit
		2695	if $exit->slaying eq "/!";
		2696	}
		2697
		2698	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2699	my $x = $exit->stats->hp;
		2700	my $y = $exit->stats->sp;
		2701
1937	$self->goto ($slaying, $hp, $sp);	2702	$self->goto ($map, $x, $y);
1938		2703
		2704	# if exit is damned, update players death & WoR home-position
		2705	$self->contr->savebed ($map, $x, $y)
		2706	if $exit->flag (cf::FLAG_DAMNED);
		2707
1939	1;	2708	1
1940	}) {	2709	}) {
1941	$self->message ("Something went wrong deep within the crossfire server. "	2710	$self->message ("Something went wrong deep within the deliantra server. "
1942	. "I'll try to bring you back to the map you were before. "	2711	. "I'll try to bring you back to the map you were before. "
1943	. "Please report this to the dungeon master!",	2712	. "Please report this to the dungeon master!",
1944	cf::NDI_UNIQUE | cf::NDI_RED);	2713	cf::NDI_UNIQUE | cf::NDI_RED);
1945		2714
1946	warn "ERROR in enter_exit: $@";	2715	warn "ERROR in enter_exit: $@";
1947	$self->leave_link;	2716	$self->leave_link;
1948	}	2717	}
1949	})->prio (1);	2718	})->prio (1);
…		…
1962		2731
1963	sub cf::client::send_drawinfo {	2732	sub cf::client::send_drawinfo {
1964	my ($self, $text, $flags) = @_;	2733	my ($self, $text, $flags) = @_;
1965		2734
1966	utf8::encode $text;	2735	utf8::encode $text;
1967	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2736	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1968	}	2737	}
1969		2738
		2739	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2740
		2741	Send a drawinfo or msg packet to the client, formatting the msg for the
		2742	client if neccessary. C<$type> should be a string identifying the type of
		2743	the message, with C<log> being the default. If C<$color> is negative, suppress
		2744	the message unless the client supports the msg packet.
		2745
		2746	=cut
		2747
		2748	# non-persistent channels (usually the info channel)
		2749	our %CHANNEL = (
		2750	"c/identify" => {
		2751	id => "infobox",
		2752	title => "Identify",
		2753	reply => undef,
		2754	tooltip => "Items recently identified",
		2755	},
		2756	"c/examine" => {
		2757	id => "infobox",
		2758	title => "Examine",
		2759	reply => undef,
		2760	tooltip => "Signs and other items you examined",
		2761	},
		2762	"c/book" => {
		2763	id => "infobox",
		2764	title => "Book",
		2765	reply => undef,
		2766	tooltip => "The contents of a note or book",
		2767	},
		2768	"c/lookat" => {
		2769	id => "infobox",
		2770	title => "Look",
		2771	reply => undef,
		2772	tooltip => "What you saw there",
		2773	},
		2774	"c/who" => {
		2775	id => "infobox",
		2776	title => "Players",
		2777	reply => undef,
		2778	tooltip => "Shows players who are currently online",
		2779	},
		2780	"c/body" => {
		2781	id => "infobox",
		2782	title => "Body Parts",
		2783	reply => undef,
		2784	tooltip => "Shows which body parts you posess and are available",
		2785	},
		2786	"c/statistics" => {
		2787	id => "infobox",
		2788	title => "Statistics",
		2789	reply => undef,
		2790	tooltip => "Shows your primary statistics",
		2791	},
		2792	"c/skills" => {
		2793	id => "infobox",
		2794	title => "Skills",
		2795	reply => undef,
		2796	tooltip => "Shows your experience per skill and item power",
		2797	},
		2798	"c/shopitems" => {
		2799	id => "infobox",
		2800	title => "Shop Items",
		2801	reply => undef,
		2802	tooltip => "Shows the items currently for sale in this shop",
		2803	},
		2804	"c/resistances" => {
		2805	id => "infobox",
		2806	title => "Resistances",
		2807	reply => undef,
		2808	tooltip => "Shows your resistances",
		2809	},
		2810	"c/pets" => {
		2811	id => "infobox",
		2812	title => "Pets",
		2813	reply => undef,
		2814	tooltip => "Shows information abotu your pets/a specific pet",
		2815	},
		2816	"c/perceiveself" => {
		2817	id => "infobox",
		2818	title => "Perceive Self",
		2819	reply => undef,
		2820	tooltip => "You gained detailed knowledge about yourself",
		2821	},
		2822	"c/uptime" => {
		2823	id => "infobox",
		2824	title => "Uptime",
		2825	reply => undef,
		2826	tooltip => "How long the server has been running since last restart",
		2827	},
		2828	"c/mapinfo" => {
		2829	id => "infobox",
		2830	title => "Map Info",
		2831	reply => undef,
		2832	tooltip => "Information related to the maps",
		2833	},
		2834	"c/party" => {
		2835	id => "party",
		2836	title => "Party",
		2837	reply => "gsay ",
		2838	tooltip => "Messages and chat related to your party",
		2839	},
		2840	"c/death" => {
		2841	id => "death",
		2842	title => "Death",
		2843	reply => undef,
		2844	tooltip => "Reason for and more info about your most recent death",
		2845	},
		2846	"c/say" => $SAY_CHANNEL,
		2847	"c/chat" => $CHAT_CHANNEL,
		2848	);
		2849
		2850	sub cf::client::send_msg {
		2851	my ($self, $channel, $msg, $color, @extra) = @_;
		2852
		2853	$msg = $self->pl->expand_cfpod ($msg)
		2854	unless $color & cf::NDI_VERBATIM;
		2855
		2856	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2857
		2858	# check predefined channels, for the benefit of C
		2859	if ($CHANNEL{$channel}) {
		2860	$channel = $CHANNEL{$channel};
		2861
		2862	$self->ext_msg (channel_info => $channel);
		2863	$channel = $channel->{id};
		2864
		2865	} elsif (ref $channel) {
		2866	# send meta info to client, if not yet sent
		2867	unless (exists $self->{channel}{$channel->{id}}) {
		2868	$self->{channel}{$channel->{id}} = $channel;
		2869	$self->ext_msg (channel_info => $channel);
		2870	}
		2871
		2872	$channel = $channel->{id};
		2873	}
		2874
		2875	return unless @extra || length $msg;
		2876
		2877	# default colour, mask it out
		2878	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2879	if $color & cf::NDI_DEF;
		2880
		2881	my $pkt = "msg "
		2882	. $self->{json_coder}->encode (
		2883	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2884	);
		2885
		2886	# try lzf for large packets
		2887	$pkt = "lzf " . Compress::LZF::compress $pkt
		2888	if 1024 <= length $pkt and $self->{can_lzf};
		2889
		2890	# split very large packets
		2891	if (8192 < length $pkt and $self->{can_lzf}) {
		2892	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2893	$pkt = "frag";
		2894	}
		2895
		2896	$self->send_packet ($pkt);
		2897	}
		2898
		2899	=item $client->ext_msg ($type, @msg)
		2900
		2901	Sends an ext event to the client.
		2902
		2903	=cut
		2904
		2905	sub cf::client::ext_msg($$@) {
		2906	my ($self, $type, @msg) = @_;
		2907
		2908	if ($self->extcmd == 2) {
		2909	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2910	} elsif ($self->extcmd == 1) { # TODO: remove
		2911	push @msg, msgtype => "event_$type";
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2913	}
		2914	}
		2915
		2916	=item $client->ext_reply ($msgid, @msg)
		2917
		2918	Sends an ext reply to the client.
		2919
		2920	=cut
		2921
		2922	sub cf::client::ext_reply($$@) {
		2923	my ($self, $id, @msg) = @_;
		2924
		2925	if ($self->extcmd == 2) {
		2926	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2927	} elsif ($self->extcmd == 1) {
		2928	#TODO: version 1, remove
		2929	unshift @msg, msgtype => "reply", msgid => $id;
		2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
		2932	}
1970		2933
1971	=item $success = $client->query ($flags, "text", \&cb)	2934	=item $success = $client->query ($flags, "text", \&cb)
1972		2935
1973	Queues a query to the client, calling the given callback with	2936	Queues a query to the client, calling the given callback with
1974	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2937	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1975	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2938	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1976		2939
1977	Queries can fail, so check the return code. Or don't, as queries will become	2940	Queries can fail, so check the return code. Or don't, as queries will
1978	reliable at some point in the future.	2941	become reliable at some point in the future.
1979		2942
1980	=cut	2943	=cut
1981		2944
1982	sub cf::client::query {	2945	sub cf::client::query {
1983	my ($self, $flags, $text, $cb) = @_;	2946	my ($self, $flags, $text, $cb) = @_;
…		…
1991	utf8::encode $text;	2954	utf8::encode $text;
1992	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2955	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1993		2956
1994	$self->send_packet ($self->{query_queue}[0][0])	2957	$self->send_packet ($self->{query_queue}[0][0])
1995	if @{ $self->{query_queue} } == 1;	2958	if @{ $self->{query_queue} } == 1;
		2959
		2960	1
1996	}	2961	}
1997		2962
1998	cf::client->attach (	2963	cf::client->attach (
		2964	on_connect => sub {
		2965	my ($ns) = @_;
		2966
		2967	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2968	},
1999	on_reply => sub {	2969	on_reply => sub {
2000	my ($ns, $msg) = @_;	2970	my ($ns, $msg) = @_;
2001		2971
2002	# this weird shuffling is so that direct followup queries	2972	# this weird shuffling is so that direct followup queries
2003	# get handled first	2973	# get handled first
…		…
2015	} else {	2985	} else {
2016	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2986	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2017	}	2987	}
2018	}	2988	}
2019	},	2989	},
		2990	on_exticmd => sub {
		2991	my ($ns, $buf) = @_;
		2992
		2993	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2994
		2995	if (ref $msg) {
		2996	my ($type, $reply, @payload) =
		2997	"ARRAY" eq ref $msg
		2998	? @$msg
		2999	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3000
		3001	my @reply;
		3002
		3003	if (my $cb = $EXTICMD{$type}) {
		3004	@reply = $cb->($ns, @payload);
		3005	}
		3006
		3007	$ns->ext_reply ($reply, @reply)
		3008	if $reply;
		3009
		3010	} else {
		3011	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3012	}
		3013
		3014	cf::override;
		3015	},
2020	);	3016	);
2021		3017
2022	=item $client->async (\&cb)	3018	=item $client->async (\&cb)
2023		3019
2024	Create a new coroutine, running the specified callback. The coroutine will	3020	Create a new coroutine, running the specified callback. The coroutine will
…		…
2065	our $safe = new Safe "safe";	3061	our $safe = new Safe "safe";
2066	our $safe_hole = new Safe::Hole;	3062	our $safe_hole = new Safe::Hole;
2067		3063
2068	$SIG{FPE} = 'IGNORE';	3064	$SIG{FPE} = 'IGNORE';
2069		3065
2070	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3066	$safe->permit_only (Opcode::opset qw(
		3067	:base_core :base_mem :base_orig :base_math
		3068	grepstart grepwhile mapstart mapwhile
		3069	sort time
		3070	));
2071		3071
2072	# here we export the classes and methods available to script code	3072	# here we export the classes and methods available to script code
2073		3073
2074	=pod	3074	=pod
2075		3075
2076	The following fucntions and emthods are available within a safe environment:	3076	The following functions and methods are available within a safe environment:
2077		3077
2078	cf::object contr pay_amount pay_player map	3078	cf::object
		3079	contr pay_amount pay_player map x y force_find force_add destroy
		3080	insert remove name archname title slaying race decrease split
		3081	value
		3082
2079	cf::object::player player	3083	cf::object::player
2080	cf::player peaceful	3084	player
2081	cf::map trigger	3085
		3086	cf::player
		3087	peaceful
		3088
		3089	cf::map
		3090	trigger
2082		3091
2083	=cut	3092	=cut
2084		3093
2085	for (	3094	for (
2086	["cf::object" => qw(contr pay_amount pay_player map)],	3095	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3096	insert remove inv nrof name archname title slaying race
		3097	decrease split destroy change_exp value msg lore send_msg)],
2087	["cf::object::player" => qw(player)],	3098	["cf::object::player" => qw(player)],
2088	["cf::player" => qw(peaceful)],	3099	["cf::player" => qw(peaceful send_msg)],
2089	["cf::map" => qw(trigger)],	3100	["cf::map" => qw(trigger)],
2090	) {	3101	) {
2091	no strict 'refs';	3102	no strict 'refs';
2092	my ($pkg, @funs) = @$_;	3103	my ($pkg, @funs) = @$_;
2093	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3104	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2110	my ($code, %vars) = @_;	3121	my ($code, %vars) = @_;
2111		3122
2112	my $qcode = $code;	3123	my $qcode = $code;
2113	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3124	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2114	$qcode =~ s/\n/\\n/g;	3125	$qcode =~ s/\n/\\n/g;
		3126
		3127	%vars = (_dummy => 0) unless %vars;
2115		3128
2116	local $_;	3129	local $_;
2117	local @safe::cf::_safe_eval_args = values %vars;	3130	local @safe::cf::_safe_eval_args = values %vars;
2118		3131
2119	my $eval =	3132	my $eval =
…		…
2162	=back	3175	=back
2163		3176
2164	=cut	3177	=cut
2165		3178
2166	#############################################################################	3179	#############################################################################
2167
2168	=head2 EXTENSION DATABASE SUPPORT
2169
2170	Crossfire maintains a very simple database for extension use. It can
2171	currently store anything that can be serialised using Storable, which
2172	excludes objects.
2173
2174	The parameter C<$family> should best start with the name of the extension
2175	using it, it should be unique.
2176
2177	=over 4
2178
2179	=item $hashref = cf::db_get $family
2180
2181	Return a hashref for use by the extension C<$family>, which can be
2182	modified. After modifications, you have to call C<cf::db_dirty> or
2183	C<cf::db_sync>.
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database
2188
2189	=item cf::db_put $family => $hashref
2190
2191	Stores the given family hashref into the database. Updates are delayed, if
2192	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2193
2194	=item cf::db_put $family => $key => $value
2195
2196	Stores the given C<$value> in the family hash. Updates are delayed, if you
2197	want the data to be synced to disk immediately, use C<cf::db_sync>.
2198
2199	=item cf::db_dirty
2200
2201	Marks the database as dirty, to be updated at a later time.
2202
2203	=item cf::db_sync
2204
2205	Immediately write the database to disk I<if it is dirty>.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	{
2212	my $path = cf::localdir . "/database.pst";
2213
2214	sub db_load() {
2215	$DB = stat $path ? Storable::retrieve $path : { };
2216	}
2217
2218	my $pid;
2219
2220	sub db_save() {
2221	waitpid $pid, 0 if $pid;
2222	if (0 == ($pid = fork)) {
2223	$DB->{_meta}{version} = 1;
2224	Storable::nstore $DB, "$path~";
2225	rename "$path~", $path;
2226	cf::_exit 0 if defined $pid;
2227	}
2228	}
2229
2230	my $dirty;
2231
2232	sub db_sync() {
2233	db_save if $dirty;
2234	undef $dirty;
2235	}
2236
2237	my $idle = Event->idle (
2238	reentrant => 0,
2239	min => 10,
2240	max => 20,
2241	repeat => 0,
2242	data => WF_AUTOCANCEL,
2243	cb => \&db_sync,
2244	);
2245
2246	sub db_dirty() {
2247	$dirty = 1;
2248	$idle->start;
2249	}
2250
2251	sub db_get($;$) {
2252	@_ >= 2
2253	? $DB->{$_[0]}{$_[1]}
2254	: ($DB->{$_[0]} ||= { })
2255	}
2256
2257	sub db_put($$;$) {
2258	if (@_ >= 3) {
2259	$DB->{$_[0]}{$_[1]} = $_[2];
2260	} else {
2261	$DB->{$_[0]} = $_[1];
2262	}
2263	db_dirty;
2264	}
2265
2266	cf::global->attach (
2267	prio => 10000,
2268	on_cleanup => sub {
2269	db_sync;
2270	},
2271	);
2272	}
2273
2274	#############################################################################
2275	# the server's init and main functions	3180	# the server's init and main functions
2276		3181
		3182	sub load_facedata($) {
		3183	my ($path) = @_;
		3184
		3185	# HACK to clear player env face cache, we need some signal framework
		3186	# for this (global event?)
		3187	%ext::player_env::MUSIC_FACE_CACHE = ();
		3188
		3189	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3190
		3191	warn "loading facedata from $path\n";
		3192
		3193	my $facedata;
		3194	0 < aio_load $path, $facedata
		3195	or die "$path: $!";
		3196
		3197	$facedata = Coro::Storable::thaw $facedata;
		3198
		3199	$facedata->{version} == 2
		3200	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3201
		3202	# patch in the exptable
		3203	$facedata->{resource}{"res/exp_table"} = {
		3204	type => FT_RSRC,
		3205	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3206	};
		3207	cf::cede_to_tick;
		3208
		3209	{
		3210	my $faces = $facedata->{faceinfo};
		3211
		3212	while (my ($face, $info) = each %$faces) {
		3213	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3214
		3215	cf::face::set_visibility $idx, $info->{visibility};
		3216	cf::face::set_magicmap $idx, $info->{magicmap};
		3217	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3218	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3219
		3220	cf::cede_to_tick;
		3221	}
		3222
		3223	while (my ($face, $info) = each %$faces) {
		3224	next unless $info->{smooth};
		3225
		3226	my $idx = cf::face::find $face
		3227	or next;
		3228
		3229	if (my $smooth = cf::face::find $info->{smooth}) {
		3230	cf::face::set_smooth $idx, $smooth;
		3231	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3232	} else {
		3233	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3234	}
		3235
		3236	cf::cede_to_tick;
		3237	}
		3238	}
		3239
		3240	{
		3241	my $anims = $facedata->{animinfo};
		3242
		3243	while (my ($anim, $info) = each %$anims) {
		3244	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3245	cf::cede_to_tick;
		3246	}
		3247
		3248	cf::anim::invalidate_all; # d'oh
		3249	}
		3250
		3251	{
		3252	# TODO: for gcfclient pleasure, we should give resources
		3253	# that gcfclient doesn't grok a >10000 face index.
		3254	my $res = $facedata->{resource};
		3255
		3256	while (my ($name, $info) = each %$res) {
		3257	if (defined $info->{type}) {
		3258	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3259	my $data;
		3260
		3261	if ($info->{type} & 1) {
		3262	# prepend meta info
		3263
		3264	my $meta = $enc->encode ({
		3265	name => $name,
		3266	%{ $info->{meta} || {} },
		3267	});
		3268
		3269	$data = pack "(w/a*)*", $meta, $info->{data};
		3270	} else {
		3271	$data = $info->{data};
		3272	}
		3273
		3274	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3275	cf::face::set_type $idx, $info->{type};
		3276	} else {
		3277	$RESOURCE{$name} = $info;
		3278	}
		3279
		3280	cf::cede_to_tick;
		3281	}
		3282	}
		3283
		3284	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3285
		3286	1
		3287	}
		3288
		3289	cf::global->attach (on_resource_update => sub {
		3290	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3291	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3292
		3293	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3294	my $sound = $soundconf->{compat}[$_]
		3295	or next;
		3296
		3297	my $face = cf::face::find "sound/$sound->[1]";
		3298	cf::sound::set $sound->[0] => $face;
		3299	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3300	}
		3301
		3302	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3303	my $face = cf::face::find "sound/$v";
		3304	cf::sound::set $k => $face;
		3305	}
		3306	}
		3307	});
		3308
		3309	register_exticmd fx_want => sub {
		3310	my ($ns, $want) = @_;
		3311
		3312	while (my ($k, $v) = each %$want) {
		3313	$ns->fx_want ($k, $v);
		3314	}
		3315	};
		3316
2277	sub load_resources {	3317	sub load_resource_file($) {
2278	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3318	my $guard = lock_acquire "load_resource_file";
		3319
		3320	my $status = load_resource_file_ $_[0];
		3321	get_slot 0.1, 100;
		3322	cf::arch::commit_load;
		3323
		3324	$status
		3325	}
		3326
		3327	sub reload_regions {
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
		3332	load_resource_file "$MAPDIR/regions"
2279	or die "unable to load regions file\n";#d#	3333	or die "unable to load regions file\n";
2280	}
2281		3334
2282	sub cfg_load {	3335	for (cf::region::list) {
		3336	$_->{match} = qr/$_->{match}/
		3337	if exists $_->{match};
		3338	}
		3339	}
		3340
		3341	sub reload_facedata {
		3342	load_facedata "$DATADIR/facedata"
		3343	or die "unable to load facedata\n";
		3344	}
		3345
		3346	sub reload_archetypes {
		3347	load_resource_file "$DATADIR/archetypes"
		3348	or die "unable to load archetypes\n";
		3349	}
		3350
		3351	sub reload_treasures {
		3352	load_resource_file "$DATADIR/treasures"
		3353	or die "unable to load treasurelists\n";
		3354	}
		3355
		3356	sub reload_resources {
		3357	warn "reloading resource files...\n";
		3358
		3359	reload_facedata;
		3360	reload_archetypes;
		3361	reload_regions;
		3362	reload_treasures;
		3363
		3364	warn "finished reloading resource files\n";
		3365	}
		3366
		3367	sub reload_config {
2283	open my $fh, "<:utf8", cf::confdir . "/config"	3368	open my $fh, "<:utf8", "$CONFDIR/config"
2284	or return;	3369	or return;
2285		3370
2286	local $/;	3371	local $/;
2287	*CFG = YAML::Syck::Load <$fh>;	3372	*CFG = YAML::Load <$fh>;
2288		3373
2289	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3374	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2290		3375
2291	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3376	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2292	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3377	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2298	};	3383	};
2299	warn $@ if $@;	3384	warn $@ if $@;
2300	}	3385	}
2301	}	3386	}
2302		3387
2303	sub init {	3388	sub pidfile() {
2304	load_resources;	3389	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3390	or die "$PIDFILE: $!";
		3391	flock $fh, &Fcntl::LOCK_EX
		3392	or die "$PIDFILE: flock: $!";
		3393	$fh
		3394	}
		3395
		3396	# make sure only one server instance is running at any one time
		3397	sub atomic {
		3398	my $fh = pidfile;
		3399
		3400	my $pid = <$fh>;
		3401	kill 9, $pid if $pid > 0;
		3402
		3403	seek $fh, 0, 0;
		3404	print $fh $$;
		3405	}
		3406
		3407	sub main_loop {
		3408	warn "EV::loop starting\n";
		3409	if (1) {
		3410	EV::loop;
		3411	}
		3412	warn "EV::loop returned\n";
		3413	goto &main_loop unless $REALLY_UNLOOP;
2305	}	3414	}
2306		3415
2307	sub main {	3416	sub main {
		3417	cf::init_globals; # initialise logging
		3418
		3419	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3420	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3421	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3422	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3423
		3424	cf::init_experience;
		3425	cf::init_anim;
		3426	cf::init_attackmess;
		3427	cf::init_dynamic;
		3428
		3429	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3430
2308	# we must not ever block the main coroutine	3431	# we must not ever block the main coroutine
2309	local $Coro::idle = sub {	3432	local $Coro::idle = sub {
2310	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3433	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2311	(async {	3434	(async {
2312	Event::one_event;	3435	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3436	EV::loop EV::LOOP_ONESHOT;
2313	})->prio (Coro::PRIO_MAX);	3437	})->prio (Coro::PRIO_MAX);
2314	};	3438	};
2315		3439
2316	cfg_load;	3440	evthread_start IO::AIO::poll_fileno;
2317	db_load;	3441
		3442	cf::sync_job {
		3443	reload_resources;
		3444	reload_config;
		3445	db_init;
		3446
		3447	cf::load_settings;
		3448	cf::load_materials;
		3449	cf::init_uuid;
		3450	cf::init_signals;
		3451	cf::init_commands;
		3452	cf::init_skills;
		3453
		3454	cf::init_beforeplay;
		3455
		3456	atomic;
		3457
2318	load_extensions;	3458	load_extensions;
2319		3459
2320	$TICK_WATCHER->start;	3460	utime time, time, $RUNTIMEFILE;
2321	Event::loop;	3461
		3462	# no (long-running) fork's whatsoever before this point(!)
		3463	use POSIX ();
		3464	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3465
		3466	(pop @POST_INIT)->(0) while @POST_INIT;
		3467	};
		3468
		3469	main_loop;
2322	}	3470	}
2323		3471
2324	#############################################################################	3472	#############################################################################
2325	# initialisation and cleanup	3473	# initialisation and cleanup
2326		3474
2327	# install some emergency cleanup handlers	3475	# install some emergency cleanup handlers
2328	BEGIN {	3476	BEGIN {
		3477	our %SIGWATCHER = ();
2329	for my $signal (qw(INT HUP TERM)) {	3478	for my $signal (qw(INT HUP TERM)) {
2330	Event->signal (	3479	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2331	reentrant => 0,
2332	data => WF_AUTOCANCEL,
2333	signal => $signal,
2334	prio => 0,
2335	cb => sub {
2336	cf::cleanup "SIG$signal";	3480	cf::cleanup "SIG$signal";
2337	},
2338	);	3481	};
		3482	}
		3483	}
		3484
		3485	sub write_runtime_sync {
		3486	# first touch the runtime file to show we are still running:
		3487	# the fsync below can take a very very long time.
		3488
		3489	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3490
		3491	my $guard = cf::lock_acquire "write_runtime";
		3492
		3493	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3494	or return;
		3495
		3496	my $value = $cf::RUNTIME + 90 + 10;
		3497	# 10 is the runtime save interval, for a monotonic clock
		3498	# 60 allows for the watchdog to kill the server.
		3499
		3500	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3501	and return;
		3502
		3503	# always fsync - this file is important
		3504	aio_fsync $fh
		3505	and return;
		3506
		3507	# touch it again to show we are up-to-date
		3508	aio_utime $fh, undef, undef;
		3509
		3510	close $fh
		3511	or return;
		3512
		3513	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3514	and return;
		3515
		3516	warn "runtime file written.\n";
		3517
2339	}	3518	1
		3519	}
		3520
		3521	our $uuid_lock;
		3522	our $uuid_skip;
		3523
		3524	sub write_uuid_sync($) {
		3525	$uuid_skip ||= $_[0];
		3526
		3527	return if $uuid_lock;
		3528	local $uuid_lock = 1;
		3529
		3530	my $uuid = "$LOCALDIR/uuid";
		3531
		3532	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3533	or return;
		3534
		3535	my $value = uuid_seq uuid_cur;
		3536
		3537	unless ($value) {
		3538	warn "cowardly refusing to write zero uuid value!\n";
		3539	return;
		3540	}
		3541
		3542	my $value = uuid_str $value + $uuid_skip;
		3543	$uuid_skip = 0;
		3544
		3545	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3546	and return;
		3547
		3548	# always fsync - this file is important
		3549	aio_fsync $fh
		3550	and return;
		3551
		3552	close $fh
		3553	or return;
		3554
		3555	aio_rename "$uuid~", $uuid
		3556	and return;
		3557
		3558	warn "uuid file written ($value).\n";
		3559
		3560	1
		3561
		3562	}
		3563
		3564	sub write_uuid($$) {
		3565	my ($skip, $sync) = @_;
		3566
		3567	$sync ? write_uuid_sync $skip
		3568	: async { write_uuid_sync $skip };
2340	}	3569	}
2341		3570
2342	sub emergency_save() {	3571	sub emergency_save() {
2343	my $freeze_guard = cf::freeze_mainloop;	3572	my $freeze_guard = cf::freeze_mainloop;
2344		3573
2345	warn "enter emergency perl save\n";	3574	warn "emergency_perl_save: enter\n";
2346		3575
2347	cf::sync_job {	3576	cf::sync_job {
		3577	# this is a trade-off: we want to be very quick here, so
		3578	# save all maps without fsync, and later call a global sync
		3579	# (which in turn might be very very slow)
		3580	local $USE_FSYNC = 0;
		3581
2348	# use a peculiar iteration method to avoid tripping on perl	3582	# use a peculiar iteration method to avoid tripping on perl
2349	# refcount bugs in for. also avoids problems with players	3583	# refcount bugs in for. also avoids problems with players
2350	# and maps saved/destroyed asynchronously.	3584	# and maps saved/destroyed asynchronously.
2351	warn "begin emergency player save\n";	3585	warn "emergency_perl_save: begin player save\n";
2352	for my $login (keys %cf::PLAYER) {	3586	for my $login (keys %cf::PLAYER) {
2353	my $pl = $cf::PLAYER{$login} or next;	3587	my $pl = $cf::PLAYER{$login} or next;
2354	$pl->valid or next;	3588	$pl->valid or next;
		3589	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2355	$pl->save;	3590	$pl->save;
2356	}	3591	}
2357	warn "end emergency player save\n";	3592	warn "emergency_perl_save: end player save\n";
2358		3593
2359	warn "begin emergency map save\n";	3594	warn "emergency_perl_save: begin map save\n";
2360	for my $path (keys %cf::MAP) {	3595	for my $path (keys %cf::MAP) {
2361	my $map = $cf::MAP{$path} or next;	3596	my $map = $cf::MAP{$path} or next;
2362	$map->valid or next;	3597	$map->valid or next;
2363	$map->save;	3598	$map->save;
2364	}	3599	}
2365	warn "end emergency map save\n";	3600	warn "emergency_perl_save: end map save\n";
		3601
		3602	warn "emergency_perl_save: begin database checkpoint\n";
		3603	BDB::db_env_txn_checkpoint $DB_ENV;
		3604	warn "emergency_perl_save: end database checkpoint\n";
		3605
		3606	warn "emergency_perl_save: begin write uuid\n";
		3607	write_uuid_sync 1;
		3608	warn "emergency_perl_save: end write uuid\n";
2366	};	3609	};
2367		3610
		3611	warn "emergency_perl_save: starting sync()\n";
		3612	IO::AIO::aio_sync sub {
		3613	warn "emergency_perl_save: finished sync()\n";
		3614	};
		3615
2368	warn "leave emergency perl save\n";	3616	warn "emergency_perl_save: leave\n";
2369	}	3617	}
2370		3618
		3619	sub post_cleanup {
		3620	my ($make_core) = @_;
		3621
		3622	warn Carp::longmess "post_cleanup backtrace"
		3623	if $make_core;
		3624
		3625	my $fh = pidfile;
		3626	unlink $PIDFILE if <$fh> == $$;
		3627	}
		3628
		3629	# a safer delete_package, copied from Symbol
		3630	sub clear_package($) {
		3631	my $pkg = shift;
		3632
		3633	# expand to full symbol table name if needed
		3634	unless ($pkg =~ /^main::.*::$/) {
		3635	$pkg = "main$pkg" if $pkg =~ /^::/;
		3636	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3637	$pkg .= '::' unless $pkg =~ /::$/;
		3638	}
		3639
		3640	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3641	my $stem_symtab = *{$stem}{HASH};
		3642
		3643	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3644	or return;
		3645
		3646	# clear all symbols
		3647	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3648	for my $name (keys %$leaf_symtab) {
		3649	_gv_clear *{"$pkg$name"};
		3650	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3651	}
		3652	warn "cleared package $pkg\n";#d#
		3653	}
		3654
2371	sub reload() {	3655	sub do_reload_perl() {
2372	# can/must only be called in main	3656	# can/must only be called in main
2373	if ($Coro::current != $Coro::main) {	3657	if ($Coro::current != $Coro::main) {
2374	warn "can only reload from main coroutine";	3658	warn "can only reload from main coroutine";
2375	return;	3659	return;
2376	}	3660	}
2377		3661
		3662	return if $RELOAD++;
		3663
		3664	my $t1 = EV::time;
		3665
		3666	while ($RELOAD) {
2378	warn "reloading...";	3667	warn "reloading...";
2379		3668
2380	warn "cancelling server ticker";	3669	warn "entering sync_job";
2381	$TICK_WATCHER->cancel;
2382		3670
		3671	cf::sync_job {
		3672	cf::write_runtime_sync; # external watchdog should not bark
2383	cf::emergency_save;	3673	cf::emergency_save;
		3674	cf::write_runtime_sync; # external watchdog should not bark
2384		3675
2385	eval {	3676	warn "syncing database to disk";
		3677	BDB::db_env_txn_checkpoint $DB_ENV;
		3678
2386	# if anything goes wrong in here, we should simply crash as we already saved	3679	# if anything goes wrong in here, we should simply crash as we already saved
2387		3680
2388	warn "syncing database to disk";
2389	cf::db_sync;
2390
2391	warn "cancelling all WF_AUTOCANCEL watchers";
2392	for (Event::all_watchers) {
2393	$_->cancel if $_->data & WF_AUTOCANCEL;
2394	}
2395
2396	warn "flushing outstanding aio requests";	3681	warn "flushing outstanding aio requests";
2397	for (;;) {	3682	while (IO::AIO::nreqs || BDB::nreqs) {
2398	IO::AIO::flush;	3683	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2399	Coro::cede;
2400	last unless IO::AIO::nreqs;
2401	warn "iterate...";
2402	}
2403
2404	warn "cancelling all extension coros";
2405	$_->cancel for values %EXT_CORO;
2406	%EXT_CORO = ();
2407
2408	warn "removing commands";
2409	%COMMAND = ();
2410
2411	warn "removing ext commands";
2412	%EXTCMD = ();
2413
2414	warn "unloading/nuking all extensions";
2415	for my $pkg (@EXTS) {
2416	warn "... unloading $pkg";
2417
2418	if (my $cb = $pkg->can ("unload")) {
2419	eval {
2420	$cb->($pkg);
2421	1
2422	} or warn "$pkg unloaded, but with errors: $@";
2423	}	3684	}
2424		3685
2425	warn "... nuking $pkg";	3686	warn "cancelling all extension coros";
2426	Symbol::delete_package $pkg;	3687	$_->cancel for values %EXT_CORO;
2427	}	3688	%EXT_CORO = ();
2428		3689
2429	warn "unloading all perl modules loaded from $LIBDIR";	3690	warn "removing commands";
2430	while (my ($k, $v) = each %INC) {	3691	%COMMAND = ();
2431	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2432		3692
		3693	warn "removing ext/exti commands";
		3694	%EXTCMD = ();
		3695	%EXTICMD = ();
		3696
		3697	warn "unloading/nuking all extensions";
		3698	for my $pkg (@EXTS) {
2433	warn "... unloading $k";	3699	warn "... unloading $pkg";
2434	delete $INC{$k};
2435		3700
2436	$k =~ s/\.pm$//;
2437	$k =~ s/\//::/g;
2438
2439	if (my $cb = $k->can ("unload_module")) {	3701	if (my $cb = $pkg->can ("unload")) {
		3702	eval {
2440	$cb->();	3703	$cb->($pkg);
		3704	1
		3705	} or warn "$pkg unloaded, but with errors: $@";
		3706	}
		3707
		3708	warn "... clearing $pkg";
		3709	clear_package $pkg;
2441	}	3710	}
2442		3711
2443	Symbol::delete_package $k;	3712	warn "unloading all perl modules loaded from $LIBDIR";
		3713	while (my ($k, $v) = each %INC) {
		3714	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3715
		3716	warn "... unloading $k";
		3717	delete $INC{$k};
		3718
		3719	$k =~ s/\.pm$//;
		3720	$k =~ s/\//::/g;
		3721
		3722	if (my $cb = $k->can ("unload_module")) {
		3723	$cb->();
		3724	}
		3725
		3726	clear_package $k;
2444	}	3727	}
2445		3728
2446	warn "getting rid of safe::, as good as possible";	3729	warn "getting rid of safe::, as good as possible";
2447	Symbol::delete_package "safe::$_"	3730	clear_package "safe::$_"
2448	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3731	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2449		3732
2450	warn "unloading cf.pm \"a bit\"";	3733	warn "unloading cf.pm \"a bit\"";
2451	delete $INC{"cf.pm"};	3734	delete $INC{"cf.pm"};
		3735	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2452		3736
2453	# don't, removes xs symbols, too,	3737	# don't, removes xs symbols, too,
2454	# and global variables created in xs	3738	# and global variables created in xs
2455	#Symbol::delete_package __PACKAGE__;	3739	#clear_package __PACKAGE__;
2456		3740
2457	warn "unload completed, starting to reload now";	3741	warn "unload completed, starting to reload now";
2458		3742
2459	warn "reloading cf.pm";	3743	warn "reloading cf.pm";
2460	require cf;	3744	require cf;
2461	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3745	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2462		3746
2463	warn "loading config and database again";	3747	warn "loading config and database again";
2464	cf::cfg_load;	3748	cf::reload_config;
2465	cf::db_load;
2466		3749
2467	warn "loading extensions";	3750	warn "loading extensions";
2468	cf::load_extensions;	3751	cf::load_extensions;
2469		3752
		3753	if ($REATTACH_ON_RELOAD) {
2470	warn "reattaching attachments to objects/players";	3754	warn "reattaching attachments to objects/players";
2471	_global_reattach;	3755	_global_reattach; # objects, sockets
2472	warn "reattaching attachments to maps";	3756	warn "reattaching attachments to maps";
2473	reattach $_ for values %MAP;	3757	reattach $_ for values %MAP;
		3758	warn "reattaching attachments to players";
		3759	reattach $_ for values %PLAYER;
		3760	}
2474		3761
2475	warn "loading reloadable resources";	3762	warn "running post_init jobs";
2476	load_resources;	3763	(pop @POST_INIT)->(1) while @POST_INIT;
2477		3764
2478	warn "restarting server ticker";	3765	warn "leaving sync_job";
2479		3766
2480	$TICK_WATCHER->start;	3767	1
		3768	} or do {
		3769	warn $@;
		3770	cf::cleanup "error while reloading, exiting.";
		3771	};
		3772
		3773	warn "reloaded";
		3774	--$RELOAD;
		3775	}
		3776
		3777	$t1 = EV::time - $t1;
		3778	warn "reload completed in ${t1}s\n";
		3779	};
		3780
		3781	our $RELOAD_WATCHER; # used only during reload
		3782
		3783	sub reload_perl() {
		3784	# doing reload synchronously and two reloads happen back-to-back,
		3785	# coro crashes during coro_state_free->destroy here.
		3786
		3787	$RELOAD_WATCHER ||= cf::async {
		3788	Coro::AIO::aio_wait cache_extensions;
		3789
		3790	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3791	do_reload_perl;
		3792	undef $RELOAD_WATCHER;
		3793	};
2481	};	3794	};
2482		3795	}
2483	if ($@) {
2484	warn $@;
2485	warn "error while reloading, exiting.";
2486	exit 1;
2487	}
2488
2489	warn "reloaded";
2490	};
2491
2492	our $RELOAD_WATCHER; # used only during reload
2493		3796
2494	register_command "reload" => sub {	3797	register_command "reload" => sub {
2495	my ($who, $arg) = @_;	3798	my ($who, $arg) = @_;
2496		3799
2497	if ($who->flag (FLAG_WIZ)) {	3800	if ($who->flag (FLAG_WIZ)) {
2498	$who->message ("reloading server.");	3801	$who->message ("reloading server.");
2499		3802	async {
2500	# doing reload synchronously and two reloads happen back-to-back,	3803	$Coro::current->{desc} = "perl_reload";
2501	# coro crashes during coro_state_free->destroy here.
2502
2503	$RELOAD_WATCHER ||= Event->timer (
2504	reentrant => 0,
2505	after => 0,
2506	data => WF_AUTOCANCEL,
2507	cb => sub {
2508	reload;	3804	reload_perl;
2509	undef $RELOAD_WATCHER;
2510	},
2511	);	3805	};
2512	}	3806	}
2513	};	3807	};
2514		3808
2515	unshift @INC, $LIBDIR;	3809	unshift @INC, $LIBDIR;
2516		3810
2517	my $bug_warning = 0;	3811	my $bug_warning = 0;
2518		3812
2519	$TICK_WATCHER = Event->timer (	3813	our @WAIT_FOR_TICK;
2520	reentrant => 0,	3814	our @WAIT_FOR_TICK_BEGIN;
2521	parked => 1,	3815
2522	prio => 0,	3816	sub wait_for_tick {
2523	at => $NEXT_TICK || $TICK,	3817	return if tick_inhibit || $Coro::current == $Coro::main;
2524	data => WF_AUTOCANCEL,	3818
2525	cb => sub {	3819	my $signal = new Coro::Signal;
		3820	push @WAIT_FOR_TICK, $signal;
		3821	$signal->wait;
		3822	}
		3823
		3824	sub wait_for_tick_begin {
		3825	return if tick_inhibit || $Coro::current == $Coro::main;
		3826
		3827	my $signal = new Coro::Signal;
		3828	push @WAIT_FOR_TICK_BEGIN, $signal;
		3829	$signal->wait;
		3830	}
		3831
		3832	sub tick {
2526	if ($Coro::current != $Coro::main) {	3833	if ($Coro::current != $Coro::main) {
2527	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3834	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2528	unless ++$bug_warning > 10;	3835	unless ++$bug_warning > 10;
2529	return;	3836	return;
2530	}	3837	}
2531		3838
2532	$NOW = Event::time;
2533
2534	cf::server_tick; # one server iteration	3839	cf::server_tick; # one server iteration
2535	$RUNTIME += $TICK;
2536	$NEXT_TICK += $TICK;
2537		3840
2538	$WAIT_FOR_TICK->broadcast;	3841	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2539	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3842	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2540		3843	Coro::async_pool {
2541	Event::sweep;	3844	$Coro::current->{desc} = "runtime saver";
2542	Coro::cede_notself;
2543
2544	# my $AFTER = Event::time;
2545	# warn $AFTER - $NOW;#d#
2546
2547	# if we are delayed by four ticks or more, skip them all
2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2549
2550	$TICK_WATCHER->at ($NEXT_TICK);
2551	$TICK_WATCHER->start;
2552	},
2553	);
2554
2555	IO::AIO::max_poll_time $TICK * 0.1;
2556
2557	undef $Coro::AIO::WATCHER;
2558	$AIO_POLL_WATCHER = Event->io (
2559	reentrant => 0,
2560	fd => IO::AIO::poll_fileno,
2561	poll => 'r',
2562	prio => 6,
2563	data => WF_AUTOCANCEL,
2564	cb => \&IO::AIO::poll_cb,
2565	);
2566
2567	$WRITE_RUNTIME_WATCHER = Event->timer (
2568	reentrant => 0,
2569	data => WF_AUTOCANCEL,
2570	after => 1,
2571	interval => 10,
2572	prio => 6, # keep it lowest so it acts like a watchdog
2573	cb => Coro::unblock_sub {
2574	write_runtime	3845	write_runtime_sync
2575	or warn "ERROR: unable to write runtime file: $!";	3846	or warn "ERROR: unable to write runtime file: $!";
		3847	};
2576	},	3848	}
2577	);	3849
		3850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3851	$sig->send;
		3852	}
		3853	while (my $sig = shift @WAIT_FOR_TICK) {
		3854	$sig->send;
		3855	}
		3856
		3857	$LOAD = ($NOW - $TICK_START) / $TICK;
		3858	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3859
		3860	if (0) {
		3861	if ($NEXT_TICK) {
		3862	my $jitter = $TICK_START - $NEXT_TICK;
		3863	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3864	warn "jitter $JITTER\n";#d#
		3865	}
		3866	}
		3867	}
		3868
		3869	{
		3870	# configure BDB
		3871
		3872	BDB::min_parallel 8;
		3873	BDB::max_poll_reqs $TICK * 0.1;
		3874	$AnyEvent::BDB::WATCHER->priority (1);
		3875
		3876	unless ($DB_ENV) {
		3877	$DB_ENV = BDB::db_env_create;
		3878	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3879	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3880	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3881	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3882	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3883
		3884	cf::sync_job {
		3885	eval {
		3886	BDB::db_env_open
		3887	$DB_ENV,
		3888	$BDBDIR,
		3889	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3890	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3891	0666;
		3892
		3893	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3894	};
		3895
		3896	cf::cleanup "db_env_open(db): $@" if $@;
		3897	};
		3898	}
		3899
		3900	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3901	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3902	};
		3903	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3904	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3905	};
		3906	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3907	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3908	};
		3909	}
		3910
		3911	{
		3912	# configure IO::AIO
		3913
		3914	IO::AIO::min_parallel 8;
		3915	IO::AIO::max_poll_time $TICK * 0.1;
		3916	undef $AnyEvent::AIO::WATCHER;
		3917	}
		3918
		3919	my $_log_backtrace;
		3920
		3921	sub _log_backtrace {
		3922	my ($msg, @addr) = @_;
		3923
		3924	$msg =~ s/\n//;
		3925
		3926	# limit the # of concurrent backtraces
		3927	if ($_log_backtrace < 2) {
		3928	++$_log_backtrace;
		3929	my $perl_bt = Carp::longmess $msg;
		3930	async {
		3931	$Coro::current->{desc} = "abt $msg";
		3932
		3933	my @bt = fork_call {
		3934	@addr = map { sprintf "%x", $_ } @addr;
		3935	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3936	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3937	or die "addr2line: $!";
		3938
		3939	my @funcs;
		3940	my @res = <$fh>;
		3941	chomp for @res;
		3942	while (@res) {
		3943	my ($func, $line) = splice @res, 0, 2, ();
		3944	push @funcs, "[$func] $line";
		3945	}
		3946
		3947	@funcs
		3948	};
		3949
		3950	LOG llevInfo, "[ABT] $perl_bt\n";
		3951	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3952	LOG llevInfo, "[ABT] $_\n" for @bt;
		3953	--$_log_backtrace;
		3954	};
		3955	} else {
		3956	LOG llevInfo, "[ABT] $msg\n";
		3957	LOG llevInfo, "[ABT] [suppressed]\n";
		3958	}
		3959	}
		3960
		3961	# load additional modules
		3962	require "cf/$_.pm" for @EXTRA_MODULES;
2578		3963
2579	END { cf::emergency_save }	3964	END { cf::emergency_save }
2580		3965
2581	1	3966	1
2582		3967

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