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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.539 by root, Tue May 4 22:49:21 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# 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 Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		80
35	our %COMMAND = ();	81	our %COMMAND = ();
36	our %COMMAND_TIME = ();	82	our %COMMAND_TIME = ();
		83
		84	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	85	our %EXTCMD = ();
		86	our %EXTICMD = ();
		87	our %EXT_CORO = (); # coroutines bound to extensions
		88	our %EXT_MAP = (); # pluggable maps
38		89
		90	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	91	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	92	our @REFLECT; # set by XS
		93	our %REFLECT; # set by us
41		94
42	our $TICK = MAX_TIME * 1e-6;	95	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	96	our $DATADIR = datadir;
		97	our $LIBDIR = "$DATADIR/ext";
		98	our $PODDIR = "$DATADIR/pod";
		99	our $MAPDIR = "$DATADIR/" . mapdir;
		100	our $LOCALDIR = localdir;
		101	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		102	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		103	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		104	our $RANDOMDIR = "$LOCALDIR/random";
		105	our $BDBDIR = "$LOCALDIR/db";
		106	our $PIDFILE = "$LOCALDIR/pid";
		107	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		108
		109	our %RESOURCE; # unused
		110
		111	our $OUTPUT_RATE_MIN = 3000;
		112	our $OUTPUT_RATE_MAX = 1000000;
		113
		114	our $MAX_LINKS = 32; # how many chained exits to follow
		115	our $VERBOSE_IO = 1;
		116
		117	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		118	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	119	our $NEXT_TICK;
45	our $NOW;	120	our $USE_FSYNC = 1; # use fsync to write maps - default on
		121
		122	our $BDB_DEADLOCK_WATCHER;
		123	our $BDB_CHECKPOINT_WATCHER;
		124	our $BDB_TRICKLE_WATCHER;
		125	our $DB_ENV;
		126
		127	our @EXTRA_MODULES = qw(pod match mapscript);
46		128
47	our %CFG;	129	our %CFG;
48		130
49	our $UPTIME; $UPTIME ||= time;	131	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	132	our $RUNTIME;
		133	our $NOW;
51		134
52	our %MAP; # all maps	135	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	136	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	137	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	138
56	our %EXT_CORO;	139	# used to convert map paths into valid unix filenames by replacing / by ∕
		140	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		141
		142	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		143	our $LOADAVG; # same thing, but with alpha-smoothing
		144	our $JITTER; # average jitter
		145	our $TICK_START; # for load detecting purposes
		146
		147	our @POST_INIT;
		148
		149	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		150	our $REALLY_UNLOOP; # never set to true, please :)
57		151
58	binmode STDOUT;	152	binmode STDOUT;
59	binmode STDERR;	153	binmode STDERR;
60		154
61	# read virtual server time, if available	155	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	156	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	157	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	158	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	159	$RUNTIME = <$fh> + 0.;
66	}	160	}
67		161
68	mkdir cf::localdir;	162	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		163
74	# a special map that is always available	164	mkdir $_
75	our $LINK_MAP;	165	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		166
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	167	our $EMERGENCY_POSITION;
		168
		169	sub cf::map::normalise;
		170
		171	sub in_main() {
		172	$Coro::current == $Coro::main
		173	}
		174
		175	#############################################################################
		176
		177	%REFLECT = ();
		178	for (@REFLECT) {
		179	my $reflect = JSON::XS::decode_json $_;
		180	$REFLECT{$reflect->{class}} = $reflect;
		181	}
		182
		183	# this is decidedly evil
		184	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		185
79	#############################################################################	186	#############################################################################
80		187
81	=head2 GLOBAL VARIABLES	188	=head2 GLOBAL VARIABLES
82		189
…		…
89	=item $cf::RUNTIME	196	=item $cf::RUNTIME
90		197
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	198	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	199	every server tick.
93		200
94	=item $cf::LIBDIR	201	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		202	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		203	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		204
96	The perl library directory, where extensions and cf-specific modules can	205	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	206	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		207	unique-items directory, player file directory, random maps directory and
		208	database environment.
98		209
99	=item $cf::NOW	210	=item $cf::NOW
100		211
101	The time of the last (current) server tick.	212	The time of the last (current) server tick.
102		213
103	=item $cf::TICK	214	=item $cf::TICK
104		215
105	The interval between server ticks, in seconds.	216	The interval between server ticks, in seconds.
106		217
		218	=item $cf::LOADAVG
		219
		220	The current CPU load on the server (alpha-smoothed), as a value between 0
		221	(none) and 1 (overloaded), indicating how much time is spent on processing
		222	objects per tick. Healthy values are < 0.5.
		223
		224	=item $cf::LOAD
		225
		226	The raw value load value from the last tick.
		227
107	=item %cf::CFG	228	=item %cf::CFG
108		229
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	230	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	231	from wherever your confdir points to.
111		232
		233	=item cf::wait_for_tick, cf::wait_for_tick_begin
		234
		235	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		236	returns directly I<after> the tick processing (and consequently, can only wake one process
		237	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		238
		239	=item @cf::INVOKE_RESULTS
		240
		241	This array contains the results of the last C<invoke ()> call. When
		242	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		243	that call.
		244
		245	=item %cf::REFLECT
		246
		247	Contains, for each (C++) class name, a hash reference with information
		248	about object members (methods, scalars, arrays and flags) and other
		249	metadata, which is useful for introspection.
		250
112	=back	251	=back
113		252
114	=cut	253	=cut
115		254
116	BEGIN {	255	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	256	sub warn (@) { LOG llevWarn , join "", @_ }
		257	sub info (@) { LOG llevInfo , join "", @_ }
		258	sub debug(@) { LOG llevDebug, join "", @_ }
		259	sub trace(@) { LOG llevTrace, join "", @_ }
		260
		261	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	262	my $msg = join "", @_;
119	utf8::encode $msg;
120		263
121	$msg .= "\n"	264	$msg .= "\n"
122	unless $msg =~ /\n$/;	265	unless $msg =~ /\n$/;
123		266
124	LOG llevError, "cfperl: $msg";	267	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	268
126	}	269	LOG llevWarn, $msg;
		270	};
		271
		272	$Coro::State::DIEHOOK = sub {
		273	return unless $^S eq 0; # "eq", not "=="
		274
		275	error Carp::longmess $_[0];
		276
		277	if (in_main) {#d#
		278	error "DIEHOOK called in main context, Coro bug?\n";#d#
		279	return;#d#
		280	}#d#
		281
		282	# kill coroutine otherwise
		283	Coro::terminate
		284	};
127		285
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	286	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	287	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	288	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	289	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	290	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		291	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	292	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		293
135	# we bless all objects into (empty) derived classes to force a method lookup	294	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	295	# within the Safe compartment.
137	for my $pkg (qw(	296	for my $pkg (qw(
138	cf::global cf::attachable	297	cf::global cf::attachable
139	cf::object cf::object::player	298	cf::object cf::object::player
140	cf::client cf::player	299	cf::client cf::player
141	cf::arch cf::living	300	cf::arch cf::living
		301	cf::map cf::mapspace
142	cf::map cf::party cf::region	302	cf::party cf::region
143	)) {	303	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	304	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	305	}
147		306
148	$Event::DIED = sub {	307	$EV::DIED = sub {
149	warn "error in event callback: @_";	308	Carp::cluck "error in event callback: @_";
150	};	309	};
151		310
152	my %ext_pkg;	311	#############################################################################
153	my @exts;
154	my @hook;
155		312
156	=head2 UTILITY FUNCTIONS	313	=head2 UTILITY FUNCTIONS
157		314
158	=over 4	315	=over 4
159		316
160	=cut	317	=item dumpval $ref
161		318
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	319	=cut
163		320
		321	sub dumpval {
		322	eval {
		323	local $SIG{__DIE__};
		324	my $d;
		325	if (1) {
		326	$d = new Data::Dumper([$_[0]], ["*var"]);
		327	$d->Terse(1);
		328	$d->Indent(2);
		329	$d->Quotekeys(0);
		330	$d->Useqq(1);
		331	#$d->Bless(...);
		332	$d->Seen($_[1]) if @_ > 1;
		333	$d = $d->Dump();
		334	}
		335	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		336	$d
		337	} || "[unable to dump $_[0]: '$@']";
		338	}
		339
164	=item $ref = cf::from_json $json	340	=item $ref = cf::decode_json $json
165		341
166	Converts a JSON string into the corresponding perl data structure.	342	Converts a JSON string into the corresponding perl data structure.
167		343
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	344	=item $json = cf::encode_json $ref
176		345
177	Converts a perl data structure into its JSON representation.	346	Converts a perl data structure into its JSON representation.
178		347
179	=cut	348	=cut
180		349
181	sub to_json($) {	350	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		351
186	=item my $guard = cf::guard { BLOCK }	352	sub encode_json($) { $json_coder->encode ($_[0]) }
		353	sub decode_json($) { $json_coder->decode ($_[0]) }
187		354
188	Run the given callback when the guard object gets destroyed (useful for	355	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		356
191	You can call C<< ->cancel >> on the guard object to stop the block from	357	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	358	but I<before> the server starts ticking again.
193		359
194	=cut	360	The cdoeblock will have a single boolean argument to indicate whether this
		361	is a reload or not.
195		362
196	sub guard(&) {	363	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		364
200	sub cf::guard::cancel {	365	sub post_init(&) {
201	${$_[0]} = sub { };	366	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	367	}
207		368
208	=item cf::lock_wait $string	369	=item cf::lock_wait $string
209		370
210	Wait until the given lock is available. See cf::lock_acquire.	371	Wait until the given lock is available. See cf::lock_acquire.
211		372
212	=item my $lock = cf::lock_acquire $string	373	=item my $lock = cf::lock_acquire $string
213		374
214	Wait until the given lock is available and then acquires it and returns	375	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	376	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	377	for example when the coroutine gets canceled), the lock is automatically
217	returned.	378	returned.
218		379
		380	Locks are *not* recursive, locking from the same coro twice results in a
		381	deadlocked coro.
		382
219	Lock names should begin with a unique identifier (for example, find_map	383	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	384	uses map_find and cf::map::load uses map_load).
221		385
222	=cut	386	=item $locked = cf::lock_active $string
223		387
224	our %LOCK;	388	Return true if the lock is currently active, i.e. somebody has locked it.
		389
		390	=cut
		391
		392	our $LOCKS = new Coro::SemaphoreSet;
225		393
226	sub lock_wait($) {	394	sub lock_wait($) {
227	my ($key) = @_;	395	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	396	}
235		397
236	sub lock_acquire($) {	398	sub lock_acquire($) {
237	my ($key) = @_;	399	$LOCKS->guard ($_[0])
		400	}
238		401
239	# wait, to be sure we are not locked	402	sub lock_active($) {
240	lock_wait $key;	403	$LOCKS->count ($_[0]) < 1
		404	}
241		405
242	$LOCK{$key} = [];	406	sub freeze_mainloop {
		407	tick_inhibit_inc;
243		408
244	cf::guard {	409	&Guard::guard (\&tick_inhibit_dec);
245	# wake up all waiters, to be on the safe side	410	}
246	$_->ready for @{ delete $LOCK{$key} };	411
		412	=item cf::periodic $interval, $cb
		413
		414	Like EV::periodic, but randomly selects a starting point so that the actions
		415	get spread over time.
		416
		417	=cut
		418
		419	sub periodic($$) {
		420	my ($interval, $cb) = @_;
		421
		422	my $start = rand List::Util::min 180, $interval;
		423
		424	EV::periodic $start, $interval, 0, $cb
		425	}
		426
		427	=item cf::get_slot $time[, $priority[, $name]]
		428
		429	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		430	This call blocks and returns only when you have at least C<$time> seconds
		431	of cpu time till the next tick. The slot is only valid till the next cede.
		432
		433	The optional C<$name> can be used to identify the job to run. It might be
		434	used for statistical purposes and should identify the same time-class.
		435
		436	Useful for short background jobs.
		437
		438	=cut
		439
		440	our @SLOT_QUEUE;
		441	our $SLOT_QUEUE;
		442	our $SLOT_DECAY = 0.9;
		443
		444	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		445	$SLOT_QUEUE = Coro::async {
		446	$Coro::current->desc ("timeslot manager");
		447
		448	my $signal = new Coro::Signal;
		449	my $busy;
		450
		451	while () {
		452	next_job:
		453
		454	my $avail = cf::till_tick;
		455
		456	for (0 .. $#SLOT_QUEUE) {
		457	if ($SLOT_QUEUE[$_][0] <= $avail) {
		458	$busy = 0;
		459	my $job = splice @SLOT_QUEUE, $_, 1, ();
		460	$job->[2]->send;
		461	Coro::cede;
		462	goto next_job;
		463	} else {
		464	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		465	}
		466	}
		467
		468	if (@SLOT_QUEUE) {
		469	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		470	push @cf::WAIT_FOR_TICK, $signal;
		471	$signal->wait;
		472	} else {
		473	$busy = 0;
		474	Coro::schedule;
		475	}
247	}	476	}
		477	};
		478
		479	sub get_slot($;$$) {
		480	return if tick_inhibit || $Coro::current == $Coro::main;
		481
		482	my ($time, $pri, $name) = @_;
		483
		484	$time = clamp $time, 0.01, $TICK * .6;
		485
		486	my $sig = new Coro::Signal;
		487
		488	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		489	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		490	$SLOT_QUEUE->ready;
		491	$sig->wait;
248	}	492	}
249		493
250	=item cf::async { BLOCK }	494	=item cf::async { BLOCK }
251		495
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	496	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	497	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		498	thing you are allowed to do is call C<prio> on it.
254		499
255	=cut	500	=cut
256		501
257	sub async(&) {	502	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		503
266	=item cf::sync_job { BLOCK }	504	=item cf::sync_job { BLOCK }
267		505
268	The design of crossfire+ requires that the main coro ($Coro::main) is	506	The design of Deliantra requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	507	is always able to handle events or runnable, as Deliantra is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	508	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		509	acceptable.
271		510
272	If it must be done, put the blocking parts into C<sync_job>. This will run	511	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	512	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	513	server will be frozen during this time, so the block should either finish
275	fast or be very important.	514	fast or be very important.
…		…
277	=cut	516	=cut
278		517
279	sub sync_job(&) {	518	sub sync_job(&) {
280	my ($job) = @_;	519	my ($job) = @_;
281		520
282	if ($Coro::current == $Coro::main) {	521	if (in_main) {
		522	my $time = AE::time;
		523
283	# this is the main coro, too bad, we have to block	524	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	525	# till the operation succeeds, freezing the server :/
285		526
286	# TODO: use suspend/resume instead	527	#LOG llevError, Carp::longmess "sync job";#d#
287	# (but this is cancel-safe)	528
288	local $FREEZE = 1;	529	my $freeze_guard = freeze_mainloop;
289		530
290	my $busy = 1;	531	my $busy = 1;
291	my @res;	532	my @res;
292		533
293	(Coro::async {	534	(async {
		535	$Coro::current->desc ("sync job coro");
294	@res = eval { $job->() };	536	@res = eval { $job->() };
295	warn $@ if $@;	537	error $@ if $@;
296	undef $busy;	538	undef $busy;
297	})->prio (Coro::PRIO_MAX);	539	})->prio (Coro::PRIO_MAX);
298		540
299	while ($busy) {	541	while ($busy) {
		542	if (Coro::nready) {
300	Coro::cede_notself;	543	Coro::cede_notself;
301	Event::one_event unless Coro::nready;	544	} else {
		545	EV::loop EV::LOOP_ONESHOT;
302	}	546	}
		547	}
		548
		549	my $time = AE::time - $time;
		550
		551	$TICK_START += $time; # do not account sync jobs to server load
303		552
304	wantarray ? @res : $res[0]	553	wantarray ? @res : $res[0]
305	} else {	554	} else {
306	# we are in another coroutine, how wonderful, everything just works	555	# we are in another coroutine, how wonderful, everything just works
307		556
308	$job->()	557	$job->()
309	}	558	}
310	}	559	}
311		560
312	=item $coro = cf::coro { BLOCK }	561	=item $coro = cf::async_ext { BLOCK }
313		562
314	Creates and returns a new coro. This coro is automcatially being canceled	563	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	564	extension calling this is being unloaded.
316		565
317	=cut	566	=cut
318		567
319	sub coro(&) {	568	sub async_ext(&) {
320	my $cb = shift;	569	my $cb = shift;
321		570
322	my $coro = &cf::async ($cb);	571	my $coro = &Coro::async ($cb);
323		572
324	$coro->on_destroy (sub {	573	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	574	delete $EXT_CORO{$coro+0};
326	});	575	});
327	$EXT_CORO{$coro+0} = $coro;	576	$EXT_CORO{$coro+0} = $coro;
328		577
329	$coro	578	$coro
330	}	579	}
331		580
332	sub write_runtime {	581	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		582
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	583	Executes the given code block with the given arguments in a seperate
336	or return;	584	process, returning the results. Everything must be serialisable with
		585	Coro::Storable. May, of course, block. Note that the executed sub may
		586	never block itself or use any form of event handling.
337		587
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	588	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		589
342	aio_fsync $fh	590	sub fork_call(&@) {
343	and return;	591	my ($cb, @args) = @_;
344		592
345	close $fh	593	# we seemingly have to make a local copy of the whole thing,
346	or return;	594	# otherwise perl prematurely frees the stuff :/
		595	# TODO: investigate and fix (likely this will be rather laborious)
347		596
348	aio_rename "$runtime~", $runtime	597	my @res = Coro::Util::fork_eval {
349	and return;	598	reset_signals;
		599	&$cb
		600	}, @args;
350		601
		602	wantarray ? @res : $res[-1]
		603	}
		604
		605	sub objinfo {
351	1	606	(
		607	"counter value" => cf::object::object_count,
		608	"objects created" => cf::object::create_count,
		609	"objects destroyed" => cf::object::destroy_count,
		610	"freelist size" => cf::object::free_count,
		611	"allocated objects" => cf::object::objects_size,
		612	"active objects" => cf::object::actives_size,
		613	)
		614	}
		615
		616	=item $coin = coin_from_name $name
		617
		618	=cut
		619
		620	our %coin_alias = (
		621	"silver" => "silvercoin",
		622	"silvercoin" => "silvercoin",
		623	"silvercoins" => "silvercoin",
		624	"gold" => "goldcoin",
		625	"goldcoin" => "goldcoin",
		626	"goldcoins" => "goldcoin",
		627	"platinum" => "platinacoin",
		628	"platinumcoin" => "platinacoin",
		629	"platinumcoins" => "platinacoin",
		630	"platina" => "platinacoin",
		631	"platinacoin" => "platinacoin",
		632	"platinacoins" => "platinacoin",
		633	"royalty" => "royalty",
		634	"royalties" => "royalty",
		635	);
		636
		637	sub coin_from_name($) {
		638	$coin_alias{$_[0]}
		639	? cf::arch::find $coin_alias{$_[0]}
		640	: undef
		641	}
		642
		643	=item $value = cf::db_get $family => $key
		644
		645	Returns a single value from the environment database.
		646
		647	=item cf::db_put $family => $key => $value
		648
		649	Stores the given C<$value> in the family. It can currently store binary
		650	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		651
		652	=item $db = cf::db_table "name"
		653
		654	Create and/or open a new database table. The string must not be "db" and must be unique
		655	within each server.
		656
		657	=cut
		658
		659	sub db_table($) {
		660	cf::error "db_get called from main context"
		661	if $Coro::current == $Coro::main;
		662
		663	my ($name) = @_;
		664	my $db = BDB::db_create $DB_ENV;
		665
		666	eval {
		667	$db->set_flags (BDB::CHKSUM);
		668
		669	utf8::encode $name;
		670	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		671	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		672	cf::cleanup "db_open(db): $!" if $!;
		673	};
		674	cf::cleanup "db_open(db): $@" if $@;
		675
		676	$db
		677	}
		678
		679	our $DB;
		680
		681	sub db_init {
		682	$DB ||= db_table "db";
		683	}
		684
		685	sub db_get($$) {
		686	my $key = "$_[0]/$_[1]";
		687
		688	cf::error "db_get called from main context"
		689	if $Coro::current == $Coro::main;
		690
		691	BDB::db_get $DB, undef, $key, my $data;
		692
		693	$! ? ()
		694	: $data
		695	}
		696
		697	sub db_put($$$) {
		698	BDB::dbreq_pri 4;
		699	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		700	}
		701
		702	=item cf::cache $id => [$paths...], $processversion => $process
		703
		704	Generic caching function that returns the value of the resource $id,
		705	caching and regenerating as required.
		706
		707	This function can block.
		708
		709	=cut
		710
		711	sub cache {
		712	my ($id, $src, $processversion, $process) = @_;
		713
		714	my $meta =
		715	join "\x00",
		716	$processversion,
		717	map {
		718	aio_stat $_
		719	and Carp::croak "$_: $!";
		720
		721	($_, (stat _)[7,9])
		722	} @$src;
		723
		724	my $dbmeta = db_get cache => "$id/meta";
		725	if ($dbmeta ne $meta) {
		726	# changed, we may need to process
		727
		728	my @data;
		729	my $md5;
		730
		731	for (0 .. $#$src) {
		732	0 <= aio_load $src->[$_], $data[$_]
		733	or Carp::croak "$src->[$_]: $!";
		734	}
		735
		736	# if processing is expensive, check
		737	# checksum first
		738	if (1) {
		739	$md5 =
		740	join "\x00",
		741	$processversion,
		742	map {
		743	cf::cede_to_tick;
		744	($src->[$_], Digest::MD5::md5_hex $data[$_])
		745	} 0.. $#$src;
		746
		747
		748	my $dbmd5 = db_get cache => "$id/md5";
		749	if ($dbmd5 eq $md5) {
		750	db_put cache => "$id/meta", $meta;
		751
		752	return db_get cache => "$id/data";
		753	}
		754	}
		755
		756	my $t1 = Time::HiRes::time;
		757	my $data = $process->(\@data);
		758	my $t2 = Time::HiRes::time;
		759
		760	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		761
		762	db_put cache => "$id/data", $data;
		763	db_put cache => "$id/md5" , $md5;
		764	db_put cache => "$id/meta", $meta;
		765
		766	return $data;
		767	}
		768
		769	db_get cache => "$id/data"
		770	}
		771
		772	=item cf::datalog type => key => value, ...
		773
		774	Log a datalog packet of the given type with the given key-value pairs.
		775
		776	=cut
		777
		778	sub datalog($@) {
		779	my ($type, %kv) = @_;
		780	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	781	}
353		782
354	=back	783	=back
355		784
356	=cut	785	=cut
357		786
358	#############################################################################	787	#############################################################################
359		788
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477
478	#############################################################################
479
480	=head2 ATTACHABLE OBJECTS	789	=head2 ATTACHABLE OBJECTS
481		790
482	Many objects in crossfire are so-called attachable objects. That means you can	791	Many objects in deliantra are so-called attachable objects. That means you can
483	attach callbacks/event handlers (a collection of which is called an "attachment")	792	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	793	to it. All such attachable objects support the following methods.
485		794
486	In the following description, CLASS can be any of C<global>, C<object>	795	In the following description, CLASS can be any of C<global>, C<object>
487	C<player>, C<client> or C<map> (i.e. the attachable objects in	796	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	797	Deliantra).
489		798
490	=over 4	799	=over 4
491		800
492	=item $attachable->attach ($attachment, key => $value...)	801	=item $attachable->attach ($attachment, key => $value...)
493		802
…		…
537	=item cf::CLASS::attachment $name, ...	846	=item cf::CLASS::attachment $name, ...
538		847
539	Register an attachment by C<$name> through which attachable objects of the	848	Register an attachment by C<$name> through which attachable objects of the
540	given CLASS can refer to this attachment.	849	given CLASS can refer to this attachment.
541		850
542	Some classes such as crossfire maps and objects can specify attachments	851	Some classes such as deliantra maps and objects can specify attachments
543	that are attached at load/instantiate time, thus the need for a name.	852	that are attached at load/instantiate time, thus the need for a name.
544		853
545	These calls expect any number of the following handler/hook descriptions:	854	These calls expect any number of the following handler/hook descriptions:
546		855
547	=over 4	856	=over 4
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	916	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	917	our @CB_MAP = ();
609		918
610	my %attachment;	919	my %attachment;
611		920
		921	sub cf::attachable::thawer_merge {
		922	# simply override everything except _meta
		923	local $_[0]{_meta};
		924	%{$_[0]} = %{$_[1]};
		925	}
		926
612	sub _attach_cb($$$$) {	927	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	928	my ($registry, $event, $prio, $cb) = @_;
614		929
615	use sort 'stable';	930	use sort 'stable';
616		931
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	965	$registry = $CB_TYPE[$object_type] ||= [];
651		966
652	} elsif ($type eq "subtype") {	967	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	968	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	969	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	970	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		971
657	} elsif ($type eq "package") {	972	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	973	my $pkg = shift @arg;
659		974
660	while (my ($name, $id) = each %cb_id) {	975	while (my ($name, $id) = each %cb_id) {
…		…
665		980
666	} elsif (exists $cb_id{$type}) {	981	} elsif (exists $cb_id{$type}) {
667	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	982	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
668		983
669	} elsif (ref $type) {	984	} elsif (ref $type) {
670	warn "attaching objects not supported, ignoring.\n";	985	error "attaching objects not supported, ignoring.\n";
671		986
672	} else {	987	} else {
673	shift @arg;	988	shift @arg;
674	warn "attach argument '$type' not supported, ignoring.\n";	989	error "attach argument '$type' not supported, ignoring.\n";
675	}	990	}
676	}	991	}
677	}	992	}
678		993
679	sub _object_attach {	994	sub _object_attach {
…		…
689	_attach $registry, $klass, @attach;	1004	_attach $registry, $klass, @attach;
690	}	1005	}
691		1006
692	$obj->{$name} = \%arg;	1007	$obj->{$name} = \%arg;
693	} else {	1008	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	1009	info "object uses attachment '$name' which is not available, postponing.\n";
695	}	1010	}
696		1011
697	$obj->{_attachment}{$name} = undef;	1012	$obj->{_attachment}{$name} = undef;
698	}	1013	}
699		1014
…		…
701	if (ref $_[0]) {	1016	if (ref $_[0]) {
702	_object_attach @_;	1017	_object_attach @_;
703	} else {	1018	} else {
704	_attach shift->_attach_registry, @_;	1019	_attach shift->_attach_registry, @_;
705	}	1020	}
		1021	_recalc_want;
706	};	1022	};
707		1023
708	# all those should be optimised	1024	# all those should be optimised
709	sub cf::attachable::detach {	1025	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	1026	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	1029	delete $obj->{_attachment}{$name};
714	reattach ($obj);	1030	reattach ($obj);
715	} else {	1031	} else {
716	Carp::croak "cannot, currently, detach class attachments";	1032	Carp::croak "cannot, currently, detach class attachments";
717	}	1033	}
		1034	_recalc_want;
718	};	1035	};
719		1036
720	sub cf::attachable::attached {	1037	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	1038	my ($obj, $name) = @_;
722		1039
…		…
737	";	1054	";
738	die if $@;	1055	die if $@;
739	}	1056	}
740		1057
741	our $override;	1058	our $override;
742	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1059	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
743		1060
744	sub override {	1061	sub override {
745	$override = 1;	1062	$override = 1;
746	@invoke_results = ();	1063	@INVOKE_RESULTS = (@_);
747	}	1064	}
748		1065
749	sub do_invoke {	1066	sub do_invoke {
750	my $event = shift;	1067	my $event = shift;
751	my $callbacks = shift;	1068	my $callbacks = shift;
752		1069
753	@invoke_results = ();	1070	@INVOKE_RESULTS = ();
754		1071
755	local $override;	1072	local $override;
756		1073
757	for (@$callbacks) {	1074	for (@$callbacks) {
758	eval { &{$_->[1]} };	1075	eval { &{$_->[1]} };
759		1076
760	if ($@) {	1077	if ($@) {
761	warn "$@";
762	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1078	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
763	override;	1079	override;
764	}	1080	}
765		1081
766	return 1 if $override;	1082	return 1 if $override;
767	}	1083	}
768		1084
769	0	1085	0
770	}	1086	}
771		1087
772	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1088	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
773		1089
774	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
775		1091
776	Generate an object-specific event with the given arguments.	1092	Generate an object-specific event with the given arguments.
777		1093
778	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1094	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
779	removed in future versions), and there is no public API to access override	1095	removed in future versions), and there is no public API to access override
780	results (if you must, access C<@cf::invoke_results> directly).	1096	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		1097
782	=back	1098	=back
783		1099
784	=cut	1100	=cut
785		1101
786	#############################################################################	1102	#############################################################################
787	# object support	1103	# object support
		1104
		1105	sub _object_equal($$);
		1106	sub _object_equal($$) {
		1107	my ($a, $b) = @_;
		1108
		1109	return 0 unless (ref $a) eq (ref $b);
		1110
		1111	if ("HASH" eq ref $a) {
		1112	my @ka = keys %$a;
		1113	my @kb = keys %$b;
		1114
		1115	return 0 if @ka != @kb;
		1116
		1117	for (0 .. $#ka) {
		1118	return 0 unless $ka[$_] eq $kb[$_];
		1119	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1120	}
		1121
		1122	} elsif ("ARRAY" eq ref $a) {
		1123
		1124	return 0 if @$a != @$b;
		1125
		1126	for (0 .. $#$a) {
		1127	return 0 unless _object_equal $a->[$_], $b->[$_];
		1128	}
		1129
		1130	} elsif ($a ne $b) {
		1131	return 0;
		1132	}
		1133
		1134	1
		1135	}
		1136
		1137	our $SLOW_MERGES;#d#
		1138	sub _can_merge {
		1139	my ($ob1, $ob2) = @_;
		1140
		1141	++$SLOW_MERGES;#d#
		1142
		1143	# we do the slow way here
		1144	return _object_equal $ob1, $ob2
		1145	}
788		1146
789	sub reattach {	1147	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	1148	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	1149	my ($obj) = @_;
		1150
		1151	# no longer needed after getting rid of delete_package?
		1152	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		1153
793	my $registry = $obj->registry;	1154	my $registry = $obj->registry;
794		1155
795	@$registry = ();	1156	@$registry = ();
796		1157
…		…
801	for (@$attach) {	1162	for (@$attach) {
802	my ($klass, @attach) = @$_;	1163	my ($klass, @attach) = @$_;
803	_attach $registry, $klass, @attach;	1164	_attach $registry, $klass, @attach;
804	}	1165	}
805	} else {	1166	} else {
806	warn "object uses attachment '$name' that is not available, postponing.\n";	1167	info "object uses attachment '$name' that is not available, postponing.\n";
807	}	1168	}
808	}	1169	}
809	}	1170	}
810		1171
811	cf::attachable->attach (	1172	cf::attachable->attach (
812	prio => -1000000,	1173	prio => -1000000,
813	on_instantiate => sub {	1174	on_instantiate => sub {
814	my ($obj, $data) = @_;	1175	my ($obj, $data) = @_;
815		1176
816	$data = from_json $data;	1177	$data = decode_json $data;
817		1178
818	for (@$data) {	1179	for (@$data) {
819	my ($name, $args) = @$_;	1180	my ($name, $args) = @$_;
820		1181
821	$obj->attach ($name, %{$args || {} });	1182	$obj->attach ($name, %{$args || {} });
…		…
837	sub object_freezer_save {	1198	sub object_freezer_save {
838	my ($filename, $rdata, $objs) = @_;	1199	my ($filename, $rdata, $objs) = @_;
839		1200
840	sync_job {	1201	sync_job {
841	if (length $$rdata) {	1202	if (length $$rdata) {
		1203	utf8::decode (my $decname = $filename);
842	warn sprintf "saving %s (%d,%d)\n",	1204	trace sprintf "saving %s (%d,%d)\n",
843	$filename, length $$rdata, scalar @$objs;	1205	$decname, length $$rdata, scalar @$objs
		1206	if $VERBOSE_IO;
844		1207
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1208	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1209	aio_chmod $fh, SAVE_MODE;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1210	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1211	if ($cf::USE_FSYNC) {
		1212	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;
848	aio_fsync $fh;	1213	aio_fsync $fh;
		1214	}
849	close $fh;	1215	aio_close $fh;
850		1216
851	if (@$objs) {	1217	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1218	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	1219	aio_chmod $fh, SAVE_MODE;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1220	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1221	aio_write $fh, 0, (length $data), $data, 0;
		1222	if ($cf::USE_FSYNC) {
		1223	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;
856	aio_fsync $fh;	1224	aio_fsync $fh;
		1225	}
857	close $fh;	1226	aio_close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1227	aio_rename "$filename.pst~", "$filename.pst";
859	}	1228	}
860	} else {	1229	} else {
861	aio_unlink "$filename.pst";	1230	aio_unlink "$filename.pst";
862	}	1231	}
863		1232
864	aio_rename "$filename~", $filename;	1233	aio_rename "$filename~", $filename;
		1234
		1235	$filename =~ s%/[^/]+$%%;
		1236	aio_pathsync $filename if $cf::USE_FSYNC;
865	} else {	1237	} else {
866	warn "FATAL: $filename~: $!\n";	1238	error "unable to save objects: $filename~: $!\n";
867	}	1239	}
868	} else {	1240	} else {
869	aio_unlink $filename;	1241	aio_unlink $filename;
870	aio_unlink "$filename.pst";	1242	aio_unlink "$filename.pst";
871	}	1243	}
872	}	1244	};
873	}	1245	}
874		1246
875	sub object_freezer_as_string {	1247	sub object_freezer_as_string {
876	my ($rdata, $objs) = @_;	1248	my ($rdata, $objs) = @_;
877		1249
…		…
889	or return;	1261	or return;
890		1262
891	unless (aio_stat "$filename.pst") {	1263	unless (aio_stat "$filename.pst") {
892	(aio_load "$filename.pst", $av) >= 0	1264	(aio_load "$filename.pst", $av) >= 0
893	or return;	1265	or return;
		1266
894	$av = eval { (Storable::thaw $av)->{objs} };	1267	my $st = eval { Coro::Storable::thaw $av };
		1268	$av = $st->{objs};
895	}	1269	}
896		1270
		1271	utf8::decode (my $decname = $filename);
897	warn sprintf "loading %s (%d)\n",	1272	trace sprintf "loading %s (%d,%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1273	$decname, length $data, scalar @{$av || []}
		1274	if $VERBOSE_IO;
		1275
899	return ($data, $av);	1276	($data, $av)
900	}	1277	}
		1278
		1279	=head2 COMMAND CALLBACKS
		1280
		1281	=over 4
		1282
		1283	=cut
901		1284
902	#############################################################################	1285	#############################################################################
903	# command handling &c	1286	# command handling &c
904		1287
905	=item cf::register_command $name => \&callback($ob,$args);	1288	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1301	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1302	}
920		1303
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1304	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1305
923	Register a callbackf ro execution when the client sends an extcmd packet.	1306	Register a callback for execution when the client sends an (synchronous)
		1307	extcmd packet. Ext commands will be processed in the order they are
		1308	received by the server, like other user commands. The first argument is
		1309	the logged-in player. Ext commands can only be processed after a player
		1310	has logged in successfully.
924		1311
925	If the callback returns something, it is sent back as if reply was being	1312	If the callback returns something, it is sent back as if reply was being
926	called.	1313	called.
927		1314
		1315	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1316
		1317	Register a callback for execution when the client sends an (asynchronous)
		1318	exticmd packet. Exti commands are processed by the server as soon as they
		1319	are received, i.e. out of order w.r.t. other commands. The first argument
		1320	is a client socket. Exti commands can be received anytime, even before
		1321	log-in.
		1322
		1323	If the callback returns something, it is sent back as if reply was being
		1324	called.
		1325
928	=cut	1326	=cut
929		1327
930	sub register_extcmd {	1328	sub register_extcmd {
931	my ($name, $cb) = @_;	1329	my ($name, $cb) = @_;
932		1330
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1331	$EXTCMD{$name} = $cb;
937	}	1332	}
		1333
		1334	sub register_exticmd {
		1335	my ($name, $cb) = @_;
		1336
		1337	$EXTICMD{$name} = $cb;
		1338	}
		1339
		1340	use File::Glob ();
938		1341
939	cf::player->attach (	1342	cf::player->attach (
940	on_command => sub {	1343	on_unknown_command => sub {
941	my ($pl, $name, $params) = @_;	1344	my ($pl, $name, $params) = @_;
942		1345
943	my $cb = $COMMAND{$name}	1346	my $cb = $COMMAND{$name}
944	or return;	1347	or return;
945		1348
…		…
950	cf::override;	1353	cf::override;
951	},	1354	},
952	on_extcmd => sub {	1355	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1356	my ($pl, $buf) = @_;
954		1357
955	my $msg = eval { from_json $buf };	1358	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1359
957	if (ref $msg) {	1360	if (ref $msg) {
		1361	my ($type, $reply, @payload) =
		1362	"ARRAY" eq ref $msg
		1363	? @$msg
		1364	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1365
		1366	my @reply;
		1367
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1368	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1369	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1370	}
		1371
		1372	$pl->ext_reply ($reply, @reply)
		1373	if $reply;
		1374
963	} else {	1375	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1376	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1377	}
966		1378
967	cf::override;	1379	cf::override;
968	},	1380	},
969	);	1381	);
970		1382
971	sub register {	1383	# "readahead" all extensions
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	1384	sub cache_extensions {
978	my ($path) = @_;	1385	my $grp = IO::AIO::aio_group;
979		1386
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1387	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
981	my $base = $1;	1388	for (grep /\.ext$/, @{$_[0]}) {
982	my $pkg = $1;	1389	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985
986	warn "loading '$path' into '$pkg'\n";
987
988	open my $fh, "<:utf8", $path
989	or die "$path: $!";
990
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }
1020
1021	# remove commands
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}	1390	}
1030	}	1391	};
1031		1392
1032	# remove extcmds	1393	$grp
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	1394	}
1046		1395
1047	sub load_extensions {	1396	sub load_extensions {
		1397	info "loading extensions...";
		1398
		1399	cf::sync_job {
		1400	my %todo;
		1401
1048	for my $ext (<$LIBDIR/*.ext>) {	1402	for my $path (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	1403	next unless -r $path;
1050	eval {	1404
1051	load_extension $ext;	1405	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1406	my $base = $1;
		1407	my $pkg = $1;
		1408	$pkg =~ s/[^[:word:]]/_/g;
		1409	$pkg = "ext::$pkg";
		1410
		1411	open my $fh, "<:utf8", $path
		1412	or die "$path: $!";
		1413
		1414	my $source = do { local $/; <$fh> };
		1415
		1416	my %ext = (
		1417	path => $path,
		1418	base => $base,
		1419	pkg => $pkg,
		1420	);
		1421
		1422	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1423	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1424
		1425	$ext{source} =
		1426	"package $pkg; use common::sense;\n"
		1427	. "#line 1 \"$path\"\n{\n"
		1428	. $source
		1429	. "\n};\n1";
		1430
		1431	$todo{$base} = \%ext;
		1432	}
		1433
		1434	my $pass = 0;
		1435	my %done;
		1436	while (%todo) {
		1437	my $progress;
		1438
		1439	++$pass;
		1440
		1441	ext:
		1442	while (my ($k, $v) = each %todo) {
		1443	for (split /,\s*/, $v->{meta}{depends}) {
		1444	next ext
		1445	unless exists $done{$_};
		1446	}
		1447
		1448	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1449
		1450	my $active = eval $v->{source};
		1451
		1452	if (length $@) {
		1453	error "$v->{path}: $@\n";
		1454	undef $@; # work around perl 5.10.0 utf-8 caching bug
		1455
		1456	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1457	if exists $v->{meta}{mandatory};
		1458
		1459	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1460	delete $todo{$k};
		1461	} else {
		1462	$done{$k} = delete $todo{$k};
		1463	push @EXTS, $v->{pkg};
		1464	$progress = 1;
		1465
		1466	info "$v->{base}: extension inactive.\n"
		1467	unless $active;
		1468	}
1052	1	1469	}
1053	} or warn "$ext not loaded: $@";	1470
		1471	unless ($progress) {
		1472	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1473
		1474	while (my ($k, $v) = each %todo) {
		1475	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1476	if exists $v->{meta}{mandatory};
		1477	}
		1478	}
		1479	}
1054	}	1480	};
1055	}	1481	}
1056		1482
1057	#############################################################################	1483	#############################################################################
1058	# load/save/clean perl data associated with a map
1059		1484
1060	*cf::mapsupport::on_clean = sub {	1485	=back
		1486
		1487	=head2 CORE EXTENSIONS
		1488
		1489	Functions and methods that extend core deliantra objects.
		1490
		1491	=cut
		1492
		1493	package cf::player;
		1494
		1495	use Coro::AIO;
		1496
		1497	=head3 cf::player
		1498
		1499	=over 4
		1500
		1501	=item cf::player::num_playing
		1502
		1503	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1504
		1505	=cut
		1506
		1507	sub num_playing {
		1508	scalar grep
		1509	$_->ob->map
		1510	&& !$_->hidden
		1511	&& !$_->ob->flag (cf::FLAG_WIZ),
		1512	cf::player::list
		1513	}
		1514
		1515	=item cf::player::find $login
		1516
		1517	Returns the given player object, loading it if necessary (might block).
		1518
		1519	=cut
		1520
		1521	sub playerdir($) {
		1522	"$PLAYERDIR/"
		1523	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1524	}
		1525
		1526	sub path($) {
		1527	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1528
		1529	(playerdir $login) . "/playerdata"
		1530	}
		1531
		1532	sub find_active($) {
		1533	$cf::PLAYER{$_[0]}
		1534	and $cf::PLAYER{$_[0]}->active
		1535	and $cf::PLAYER{$_[0]}
		1536	}
		1537
		1538	sub exists($) {
1061	my ($map) = @_;	1539	my ($login) = @_;
1062		1540
1063	my $path = $map->tmpname;	1541	$cf::PLAYER{$login}
1064	defined $path or return;	1542	or !aio_stat path $login
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}	1543	}
1077		1544
1078	# TODO: compatibility cruft, remove when no longer needed	1545	sub find($) {
		1546	return $cf::PLAYER{$_[0]} || do {
		1547	my $login = $_[0];
		1548
		1549	my $guard = cf::lock_acquire "user_find:$login";
		1550
		1551	$cf::PLAYER{$_[0]} || do {
		1552	# rename old playerfiles to new ones
		1553	#TODO: remove when no longer required
		1554	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1555	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1556	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1557	aio_unlink +(playerdir $login) . "/$login.pl";
		1558
		1559	my $f = new_from_file cf::object::thawer path $login
		1560	or return;
		1561
		1562	my $pl = cf::player::load_pl $f
		1563	or return;
		1564
		1565	local $cf::PLAYER_LOADING{$login} = $pl;
		1566	$f->resolve_delayed_derefs;
		1567	$cf::PLAYER{$login} = $pl
		1568	}
		1569	}
		1570	}
		1571
1079	cf::player->attach (	1572	cf::player->attach (
1080	on_load => sub {	1573	on_load => sub {
1081	my ($pl, $path) = @_;	1574	my ($pl, $path) = @_;
1082		1575
1083	for my $o (all_objects $pl->ob) {	1576	# restore slots saved in save, below
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1577	my $slots = delete $pl->{_slots};
1085	$o->set_ob_key_value ("_perl_data");
1086		1578
1087	%$o = %{ Storable::thaw pack "H*", $value };	1579	$pl->ob->current_weapon ($slots->[0]);
1088	}	1580	$pl->combat_ob ($slots->[1]);
1089	}	1581	$pl->ranged_ob ($slots->[2]);
1090	},	1582	},
1091	);	1583	);
1092		1584
1093	#############################################################################	1585	sub save($) {
		1586	my ($pl) = @_;
1094		1587
1095	=head2 CORE EXTENSIONS	1588	return if $pl->{deny_save};
1096		1589
1097	Functions and methods that extend core crossfire objects.	1590	my $path = path $pl;
		1591	my $guard = cf::lock_acquire "user_save:$path";
1098		1592
1099	=head3 cf::player	1593	return if $pl->{deny_save};
		1594
		1595	aio_mkdir playerdir $pl, 0770;
		1596	$pl->{last_save} = $cf::RUNTIME;
		1597
		1598	cf::get_slot 0.01;
		1599
		1600	# save slots, to be restored later
		1601	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1602
		1603	$pl->save_pl ($path);
		1604	cf::cede_to_tick;
		1605	}
		1606
		1607	sub new($) {
		1608	my ($login) = @_;
		1609
		1610	my $self = create;
		1611
		1612	$self->ob->name ($login);
		1613	$self->{deny_save} = 1;
		1614
		1615	$cf::PLAYER{$login} = $self;
		1616
		1617	$self
		1618	}
		1619
		1620	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1621
		1622	=cut
		1623
		1624	sub send_msg {
		1625	my $ns = shift->ns
		1626	or return;
		1627	$ns->send_msg (@_);
		1628	}
		1629
		1630	=item $pl->quit_character
		1631
		1632	Nukes the player without looking back. If logged in, the connection will
		1633	be destroyed. May block for a long time.
		1634
		1635	=cut
		1636
		1637	sub quit_character {
		1638	my ($pl) = @_;
		1639
		1640	my $name = $pl->ob->name;
		1641
		1642	$pl->{deny_save} = 1;
		1643	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1644
		1645	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1646	$pl->deactivate;
		1647	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1648	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1649	$pl->ns->destroy if $pl->ns;
		1650
		1651	my $path = playerdir $pl;
		1652	my $temp = "$path~$cf::RUNTIME~deleting~";
		1653	aio_rename $path, $temp;
		1654	delete $cf::PLAYER{$pl->ob->name};
		1655	$pl->destroy;
		1656
		1657	my $prefix = qr<^~\Q$name\E/>;
		1658
		1659	# nuke player maps
		1660	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1661
		1662	IO::AIO::aio_rmtree $temp;
		1663	}
		1664
		1665	=item $pl->kick
		1666
		1667	Kicks a player out of the game. This destroys the connection.
		1668
		1669	=cut
		1670
		1671	sub kick {
		1672	my ($pl, $kicker) = @_;
		1673
		1674	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1675	$pl->killer ("kicked");
		1676	$pl->ns->destroy;
		1677	}
		1678
		1679	=item cf::player::list_logins
		1680
		1681	Returns am arrayref of all valid playernames in the system, can take a
		1682	while and may block, so not sync_job-capable, ever.
		1683
		1684	=cut
		1685
		1686	sub list_logins {
		1687	my $dirs = aio_readdir $PLAYERDIR
		1688	or return [];
		1689
		1690	my @logins;
		1691
		1692	for my $login (@$dirs) {
		1693	my $path = path $login;
		1694
		1695	# a .pst is a dead give-away for a valid player
		1696	# if no pst file found, open and chekc for blocked users
		1697	if (aio_stat "$path.pst") {
		1698	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1699	aio_read $fh, 0, 512, my $buf, 0 or next;
		1700	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1701	}
		1702
		1703	utf8::decode $login;
		1704	push @logins, $login;
		1705	}
		1706
		1707	\@logins
		1708	}
		1709
		1710	=item $player->maps
		1711
		1712	=item cf::player::maps $login
		1713
		1714	Returns an arrayref of map paths that are private for this
		1715	player. May block.
		1716
		1717	=cut
		1718
		1719	sub maps($) {
		1720	my ($pl) = @_;
		1721
		1722	$pl = ref $pl ? $pl->ob->name : $pl;
		1723
		1724	my $files = aio_readdir playerdir $pl
		1725	or return;
		1726
		1727	my @paths;
		1728
		1729	for (@$files) {
		1730	utf8::decode $_;
		1731	next if /\.(?:pl|pst)$/;
		1732	next unless /^$PATH_SEP/o;
		1733
		1734	push @paths, cf::map::normalise "~$pl/$_";
		1735	}
		1736
		1737	\@paths
		1738	}
		1739
		1740	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1741
		1742	Expand deliantra pod fragments into protocol xml.
		1743
		1744	=item $player->ext_reply ($msgid, @msg)
		1745
		1746	Sends an ext reply to the player.
		1747
		1748	=cut
		1749
		1750	sub ext_reply($$@) {
		1751	my ($self, $id, @msg) = @_;
		1752
		1753	$self->ns->ext_reply ($id, @msg)
		1754	}
		1755
		1756	=item $player->ext_msg ($type, @msg)
		1757
		1758	Sends an ext event to the client.
		1759
		1760	=cut
		1761
		1762	sub ext_msg($$@) {
		1763	my ($self, $type, @msg) = @_;
		1764
		1765	$self->ns->ext_msg ($type, @msg);
		1766	}
		1767
		1768	=head3 cf::region
1100		1769
1101	=over 4	1770	=over 4
1102		1771
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut	1772	=cut
1108		1773
1109	sub cf::player::exists($) {	1774	package cf::region;
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113		1775
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1776	=item cf::region::find_by_path $path
1115		1777
1116	Sends an ext reply to the player.	1778	Tries to decuce the likely region for a map knowing only its path.
1117		1779
1118	=cut	1780	=cut
1119		1781
1120	sub cf::player::ext_reply($$$%) {	1782	sub find_by_path($) {
1121	my ($self, $id, %msg) = @_;	1783	my ($path) = @_;
1122		1784
1123	$msg{msgid} = $id;	1785	$path =~ s/^~[^\/]*//; # skip ~login
1124		1786
1125	$self->send ("ext " . to_json \%msg);	1787	my ($match, $specificity);
		1788
		1789	for my $region (list) {
		1790	if ($region->{match} && $path =~ $region->{match}) {
		1791	($match, $specificity) = ($region, $region->specificity)
		1792	if $region->specificity > $specificity;
		1793	}
		1794	}
		1795
		1796	$match
1126	}	1797	}
1127		1798
1128	=back	1799	=back
1129
1130		1800
1131	=head3 cf::map	1801	=head3 cf::map
1132		1802
1133	=over 4	1803	=over 4
1134		1804
…		…
1137	package cf::map;	1807	package cf::map;
1138		1808
1139	use Fcntl;	1809	use Fcntl;
1140	use Coro::AIO;	1810	use Coro::AIO;
1141		1811
		1812	use overload
		1813	'""' => \&as_string,
		1814	fallback => 1;
		1815
1142	our $MAX_RESET = 7200;	1816	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1817	our $DEFAULT_RESET = 3000;
1144		1818
1145	sub generate_random_map {	1819	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1820	my ($self, $rmp) = @_;
		1821
		1822	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1147		1823
1148	# mit "rum" bekleckern, nicht	1824	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1825	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1826	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1827	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1828	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1829	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1830	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1831	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1832	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1833	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1834	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1835	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1836	(cf::region::find $rmp->{region}), $rmp->{custom}
		1837	)
1162	}	1838	}
1163		1839
1164	# and all this just because we cannot iterate over	1840	=item cf::map->register ($regex, $prio)
1165	# all maps in C++...
1166	sub change_all_map_light {
1167	my ($change) = @_;
1168		1841
1169	$_->change_map_light ($change)	1842	Register a handler for the map path matching the given regex at the
1170	for grep $_->outdoor, values %cf::MAP;	1843	givne priority (higher is better, built-in handlers have priority 0, the
1171	}	1844	default).
1172		1845
1173	sub try_load_header($) {	1846	=cut
		1847
		1848	sub register {
		1849	my (undef, $regex, $prio) = @_;
		1850	my $pkg = caller;
		1851
		1852	push @{"$pkg\::ISA"}, __PACKAGE__;
		1853
		1854	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1855	}
		1856
		1857	# also paths starting with '/'
		1858	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1859
		1860	sub thawer_merge {
		1861	my ($self, $merge) = @_;
		1862
		1863	# we have to keep some variables in memory intact
		1864	local $self->{path};
		1865	local $self->{load_path};
		1866
		1867	$self->SUPER::thawer_merge ($merge);
		1868	}
		1869
		1870	sub normalise {
1174	my ($path) = @_;	1871	my ($path, $base) = @_;
		1872
		1873	$path = "$path"; # make sure its a string
		1874
		1875	$path =~ s/\.map$//;
		1876
		1877	# map plan:
		1878	#
		1879	# /! non-realised random map exit (special hack!)
		1880	# {... are special paths that are not being touched
		1881	# ?xxx/... are special absolute paths
		1882	# ?random/... random maps
		1883	# /... normal maps
		1884	# ~user/... per-player map of a specific user
		1885
		1886	$path =~ s/$PATH_SEP/\//go;
		1887
		1888	# treat it as relative path if it starts with
		1889	# something that looks reasonable
		1890	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1891	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1892
		1893	$base =~ s{[^/]+/?$}{};
		1894	$path = "$base/$path";
		1895	}
		1896
		1897	for ($path) {
		1898	redo if s{//}{/};
		1899	redo if s{/\.?/}{/};
		1900	redo if s{/[^/]+/\.\./}{/};
		1901	}
		1902
		1903	$path
		1904	}
		1905
		1906	sub new_from_path {
		1907	my (undef, $path, $base) = @_;
		1908
		1909	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1910
		1911	$path = normalise $path, $base;
		1912
		1913	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1914	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1915	my $self = bless cf::map::new, $pkg;
		1916	$self->{path} = $path; $self->path ($path);
		1917	$self->init; # pass $1 etc.
		1918	return $self;
		1919	}
		1920	}
		1921
		1922	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1923	()
		1924	}
		1925
		1926	sub init {
		1927	my ($self) = @_;
		1928
		1929	$self
		1930	}
		1931
		1932	sub as_string {
		1933	my ($self) = @_;
		1934
		1935	"$self->{path}"
		1936	}
		1937
		1938	# the displayed name, this is a one way mapping
		1939	sub visible_name {
		1940	&as_string
		1941	}
		1942
		1943	# the original (read-only) location
		1944	sub load_path {
		1945	my ($self) = @_;
		1946
		1947	"$MAPDIR/$self->{path}.map"
		1948	}
		1949
		1950	# the temporary/swap location
		1951	sub save_path {
		1952	my ($self) = @_;
		1953
		1954	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1955	"$TMPDIR/$path.map"
		1956	}
		1957
		1958	# the unique path, undef == no special unique path
		1959	sub uniq_path {
		1960	my ($self) = @_;
		1961
		1962	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1963	"$UNIQUEDIR/$path"
		1964	}
		1965
		1966	sub decay_objects {
		1967	my ($self) = @_;
		1968
		1969	return if $self->{deny_reset};
		1970
		1971	$self->do_decay_objects;
		1972	}
		1973
		1974	sub unlink_save {
		1975	my ($self) = @_;
		1976
		1977	utf8::encode (my $save = $self->save_path);
		1978	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1979	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1980	}
		1981
		1982	sub load_header_from($) {
		1983	my ($self, $path) = @_;
1175		1984
1176	utf8::encode $path;	1985	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1986	my $f = new_from_file cf::object::thawer $path
1178	or return;	1987	or return;
1179		1988
1180	my $map = cf::map::new	1989	$self->_load_header ($f)
1181	or return;	1990	or return;
1182		1991
1183	$map->load_header ($path)	1992	local $MAP_LOADING{$self->{path}} = $self;
		1993	$f->resolve_delayed_derefs;
		1994
		1995	$self->{load_path} = $path;
		1996
		1997	1
		1998	}
		1999
		2000	sub load_header_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->load_header_from ($self->load_path)
		2004	}
		2005
		2006	sub load_header_temp {
		2007	my ($self) = @_;
		2008
		2009	$self->load_header_from ($self->save_path)
		2010	}
		2011
		2012	sub prepare_temp {
		2013	my ($self) = @_;
		2014
		2015	$self->last_access ((delete $self->{last_access})
		2016	|| $cf::RUNTIME); #d#
		2017	# safety
		2018	$self->{instantiate_time} = $cf::RUNTIME
		2019	if $self->{instantiate_time} > $cf::RUNTIME;
		2020	}
		2021
		2022	sub prepare_orig {
		2023	my ($self) = @_;
		2024
		2025	$self->{load_original} = 1;
		2026	$self->{instantiate_time} = $cf::RUNTIME;
		2027	$self->last_access ($cf::RUNTIME);
		2028	$self->instantiate;
		2029	}
		2030
		2031	sub load_header {
		2032	my ($self) = @_;
		2033
		2034	if ($self->load_header_temp) {
		2035	$self->prepare_temp;
		2036	} else {
		2037	$self->load_header_orig
1184	or return;	2038	or return;
		2039	$self->prepare_orig;
		2040	}
1185		2041
1186	$map->{load_path} = $path;	2042	$self->{deny_reset} = 1
		2043	if $self->no_reset;
1187		2044
1188	$map	2045	$self->default_region (cf::region::find_by_path $self->{path})
1189	}	2046	unless $self->default_region;
1190		2047
		2048	1
		2049	}
		2050
1191	sub find_map;	2051	sub find;
1192	sub find_map {	2052	sub find {
1193	my ($path, $origin) = @_;	2053	my ($path, $origin) = @_;
1194		2054
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	2055	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		2056
1200	cf::lock_wait "map_find:$key";	2057	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1201
1202	$cf::MAP{$key} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	2058	my $guard2 = cf::lock_acquire "map_find:$path";
1204		2059
1205	# do it the slow way	2060	$cf::MAP{$path} || do {
1206	my $map = try_load_header $path->save_path;	2061	my $map = new_from_path cf::map $path
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	2062	or return;
1220		2063
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	2064	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		2065
1234	if ($map->should_reset) {	2066	$map->load_header
		2067	or return;
		2068
		2069	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2070	# doing this can freeze the server in a sync job, obviously
		2071	#$cf::WAIT_FOR_TICK->wait;
		2072	undef $guard2;
		2073	undef $guard1;
1235	$map->reset;	2074	$map->reset;
1236	undef $guard;	2075	return find $path;
1237	$map = find_map $path
1238	or return;
1239	}	2076	}
1240		2077
1241	$cf::MAP{$key} = $map	2078	$cf::MAP{$path} = $map
1242	}	2079	}
1243	}	2080	}
		2081
		2082	sub pre_load { }
		2083	#sub post_load { } # XS
1244		2084
1245	sub load {	2085	sub load {
1246	my ($self) = @_;	2086	my ($self) = @_;
1247		2087
		2088	local $self->{deny_reset} = 1; # loading can take a long time
		2089
1248	my $path = $self->{path};	2090	my $path = $self->{path};
		2091
		2092	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2093	my $guard = cf::lock_acquire "map_data:$path";
1250		2094
		2095	return unless $self->valid;
1251	return if $self->in_memory != cf::MAP_SWAPPED;	2096	return unless $self->in_memory == cf::MAP_SWAPPED;
1252		2097
1253	$self->in_memory (cf::MAP_LOADING);	2098	$self->in_memory (cf::MAP_LOADING);
1254		2099
1255	$self->alloc;	2100	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	2101
		2102	$self->pre_load;
		2103	cf::cede_to_tick;
		2104
		2105	my $f = new_from_file cf::object::thawer $self->{load_path};
		2106	$f->skip_block;
		2107	$self->_load_objects ($f)
1257	or return;	2108	or return;
1258		2109
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2110	$self->post_load_original
1260	if delete $self->{load_original};	2111	if delete $self->{load_original};
1261		2112
1262	if (my $uniq = $path->uniq_path) {	2113	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	2114	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	2115	unless (aio_stat $uniq) {
		2116	if (my $f = new_from_file cf::object::thawer $uniq) {
1265	$self->clear_unique_items;	2117	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	2118	$self->_load_objects ($f);
		2119	$f->resolve_delayed_derefs;
		2120	}
1267	}	2121	}
1268	}	2122	}
1269		2123
		2124	$f->resolve_delayed_derefs;
		2125
		2126	cf::cede_to_tick;
1270	# now do the right thing for maps	2127	# now do the right thing for maps
1271	$self->link_multipart_objects;	2128	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	2129	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	2130	unless $self->difficulty;
		2131	cf::cede_to_tick;
		2132
		2133	unless ($self->{deny_activate}) {
		2134	$self->decay_objects;
		2135	$self->fix_auto_apply;
		2136	$self->update_buttons;
		2137	cf::cede_to_tick;
1283	$self->activate;	2138	$self->activate;
1284	}	2139	}
1285		2140
		2141	$self->{last_save} = $cf::RUNTIME;
		2142	$self->last_access ($cf::RUNTIME);
		2143
1286	$self->in_memory (cf::MAP_IN_MEMORY);	2144	$self->in_memory (cf::MAP_ACTIVE);
1287	}	2145	}
1288		2146
1289	sub load_map_sync {	2147	$self->post_load;
		2148	}
		2149
		2150	# customize the map for a given player, i.e.
		2151	# return the _real_ map. used by e.g. per-player
		2152	# maps to change the path to ~playername/mappath
		2153	sub customise_for {
		2154	my ($self, $ob) = @_;
		2155
		2156	return find "~" . $ob->name . "/" . $self->{path}
		2157	if $self->per_player;
		2158
		2159	# return find "?party/" . $ob->name . "/" . $self->{path}
		2160	# if $self->per_party;
		2161
		2162	$self
		2163	}
		2164
		2165	# find and load all maps in the 3x3 area around a map
		2166	sub load_neighbours {
		2167	my ($map) = @_;
		2168
		2169	my @neigh; # diagonal neighbours
		2170
		2171	for (0 .. 3) {
		2172	my $neigh = $map->tile_path ($_)
		2173	or next;
		2174	$neigh = find $neigh, $map
		2175	or next;
		2176	$neigh->load;
		2177
		2178	# now find the diagonal neighbours
		2179	push @neigh,
		2180	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2181	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2182	}
		2183
		2184	for (grep defined $_->[0], @neigh) {
		2185	my ($path, $origin) = @$_;
		2186	my $neigh = find $path, $origin
		2187	or next;
		2188	$neigh->load;
		2189	}
		2190	}
		2191
		2192	sub find_sync {
1290	my ($path, $origin) = @_;	2193	my ($path, $origin) = @_;
1291		2194
1292	#warn "load_map_sync<$path, $origin>\n";#d#	2195	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2196	if $Coro::current == $Coro::main;
1293		2197
1294	cf::sync_job {	2198	find $path, $origin
1295	my $map = cf::map::find_map $path, $origin	2199	}
1296	or return;	2200
		2201	sub do_load_sync {
		2202	my ($map) = @_;
		2203
		2204	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2205	if $Coro::current == $Coro::main;
		2206
1297	$map->load;	2207	$map->load;
1298	$map	2208	}
		2209
		2210	our %MAP_PREFETCH;
		2211	our $MAP_PREFETCHER = undef;
		2212
		2213	sub find_async {
		2214	my ($path, $origin, $load) = @_;
		2215
		2216	$path = normalise $path, $origin && $origin->{path};
		2217
		2218	if (my $map = $cf::MAP{$path}) {
		2219	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2220	}
		2221
		2222	$MAP_PREFETCH{$path} |= $load;
		2223
		2224	$MAP_PREFETCHER ||= cf::async {
		2225	$Coro::current->{desc} = "map prefetcher";
		2226
		2227	while (%MAP_PREFETCH) {
		2228	while (my ($k, $v) = each %MAP_PREFETCH) {
		2229	if (my $map = find $k) {
		2230	$map->load if $v;
		2231	}
		2232
		2233	delete $MAP_PREFETCH{$k};
		2234	}
		2235	}
		2236	undef $MAP_PREFETCHER;
		2237	};
		2238	$MAP_PREFETCHER->prio (6);
		2239
		2240	()
		2241	}
		2242
		2243	# common code, used by both ->save and ->swapout
		2244	sub _save {
		2245	my ($self) = @_;
		2246
		2247	$self->{last_save} = $cf::RUNTIME;
		2248
		2249	return unless $self->dirty;
		2250
		2251	my $save = $self->save_path; utf8::encode $save;
		2252	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2253
		2254	$self->{load_path} = $save;
		2255
		2256	return if $self->{deny_save};
		2257
		2258	local $self->{last_access} = $self->last_access;#d#
		2259
		2260	cf::async {
		2261	$Coro::current->{desc} = "map player save";
		2262	$_->contr->save for $self->players;
		2263	};
		2264
		2265	cf::get_slot 0.02;
		2266
		2267	if ($uniq) {
		2268	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2269	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2270	} else {
		2271	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1299	}	2272	}
1300	}	2273	}
1301		2274
1302	sub save {	2275	sub save {
1303	my ($self) = @_;	2276	my ($self) = @_;
1304		2277
1305	$self->{last_save} = $cf::RUNTIME;	2278	my $lock = cf::lock_acquire "map_data:$self->{path}";
1306		2279
1307	return unless $self->dirty;	2280	$self->_save;
1308
1309	my $save = $self->{path}->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1311
1312	$self->{load_path} = $save;
1313
1314	return if $self->{deny_save};
1315
1316	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}
1322	}	2281	}
1323		2282
1324	sub swap_out {	2283	sub swap_out {
1325	my ($self) = @_;	2284	my ($self) = @_;
1326		2285
1327	# save first because save cedes	2286	my $lock = cf::lock_acquire "map_data:$self->{path}";
1328	$self->save;
1329		2287
		2288	return if $self->in_memory != cf::MAP_ACTIVE;
		2289	return if $self->{deny_save};
1330	return if $self->players;	2290	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};
1333		2291
		2292	# first deactivate the map and "unlink" it from the core
		2293	$self->deactivate;
		2294	$_->clear_links_to ($self) for values %cf::MAP;
		2295	$self->in_memory (cf::MAP_SWAPPED);
		2296
		2297	# then atomically save
		2298	$self->_save;
		2299
		2300	# then free the map
1334	$self->clear;	2301	$self->clear;
1335	$self->in_memory (cf::MAP_SWAPPED);
1336	}	2302	}
1337		2303
1338	sub reset_at {	2304	sub reset_at {
1339	my ($self) = @_;	2305	my ($self) = @_;
1340		2306
1341	# TODO: safety, remove and allow resettable per-player maps	2307	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};
1343	return 1e99 if $self->{deny_reset};	2308	return 1e99 if $self->{deny_reset};
1344		2309
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2310	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2311	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		2312
…		…
1352	my ($self) = @_;	2317	my ($self) = @_;
1353		2318
1354	$self->reset_at <= $cf::RUNTIME	2319	$self->reset_at <= $cf::RUNTIME
1355	}	2320	}
1356		2321
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	2322	sub reset {
1379	my ($self) = @_;	2323	my ($self) = @_;
1380		2324
		2325	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2326
1381	return if $self->players;	2327	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2328
1384	warn "resetting map ", $self->path;#d#	2329	cf::trace "resetting map ", $self->path, "\n";
		2330
		2331	$self->in_memory (cf::MAP_SWAPPED);
		2332
		2333	# need to save uniques path
		2334	unless ($self->{deny_save}) {
		2335	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2336
		2337	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2338	if $uniq;
		2339	}
1385		2340
1386	delete $cf::MAP{$self->path};	2341	delete $cf::MAP{$self->path};
1387		2342
		2343	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2344	$_->clear_links_to ($self) for values %cf::MAP;
		2345	$self->clear;
1389		2346
1390	$self->unlink_save;	2347	$self->unlink_save;
1391	$self->destroy;	2348	$self->destroy;
1392	}	2349	}
1393		2350
1394	my $nuke_counter = "aaaa";	2351	my $nuke_counter = "aaaa";
1395		2352
1396	sub nuke {	2353	sub nuke {
1397	my ($self) = @_;	2354	my ($self) = @_;
1398		2355
		2356	{
		2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2358
		2359	delete $cf::MAP{$self->path};
		2360
		2361	$self->unlink_save;
		2362
		2363	bless $self, "cf::map::wrap";
		2364	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2365	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2366	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2367	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2368
		2369	$cf::MAP{$self->path} = $self;
		2370	}
		2371
1402	$self->reset; # polite request, might not happen	2372	$self->reset; # polite request, might not happen
1403	}	2373	}
1404		2374
1405	sub customise_for {	2375	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2376
1408	if ($map->per_player) {	2377	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2378	maps. May block.
		2379
		2380	=cut
		2381
		2382	sub tmp_maps() {
1410	}	2383	[
1411		2384	map {
1412	$map	2385	utf8::decode $_;
		2386	/\.map$/
		2387	? normalise $_
		2388	: ()
		2389	} @{ aio_readdir $TMPDIR or [] }
		2390	]
1413	}	2391	}
1414		2392
1415	sub emergency_save {	2393	=item $maps = cf::map::random_maps
1416	local $cf::FREEZE = 1;
1417		2394
1418	warn "enter emergency map save\n";	2395	Returns an arrayref with all map paths of currently instantiated and saved
		2396	random maps. May block.
1419		2397
1420	cf::sync_job {	2398	=cut
1421	warn "begin emergency map save\n";	2399
1422	$_->save for values %cf::MAP;	2400	sub random_maps() {
		2401	[
		2402	map {
		2403	utf8::decode $_;
		2404	/\.map$/
		2405	? normalise "?random/$_"
		2406	: ()
		2407	} @{ aio_readdir $RANDOMDIR or [] }
		2408	]
		2409	}
		2410
		2411	=item cf::map::unique_maps
		2412
		2413	Returns an arrayref of paths of all shared maps that have
		2414	instantiated unique items. May block.
		2415
		2416	=cut
		2417
		2418	sub unique_maps() {
		2419	[
		2420	map {
		2421	utf8::decode $_;
		2422	s/\.map$//; # TODO future compatibility hack
		2423	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2424	? ()
		2425	: normalise $_
		2426	} @{ aio_readdir $UNIQUEDIR or [] }
		2427	]
		2428	}
		2429
		2430	=item cf::map::static_maps
		2431
		2432	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2433	file in the shared directory excluding F</styles> and F</editor>). May
		2434	block.
		2435
		2436	=cut
		2437
		2438	sub static_maps() {
		2439	my @dirs = "";
		2440	my @maps;
		2441
		2442	while (@dirs) {
		2443	my $dir = shift @dirs;
		2444
		2445	next if $dir eq "/styles" || $dir eq "/editor";
		2446
		2447	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2448	or return;
		2449
		2450	for (@$files) {
		2451	s/\.map$// or next;
		2452	utf8::decode $_;
		2453	push @maps, "$dir/$_";
		2454	}
		2455
		2456	push @dirs, map "$dir/$_", @$dirs;
1423	};	2457	}
1424		2458
1425	warn "end emergency map save\n";	2459	\@maps
		2460	}
		2461
		2462	=back
		2463
		2464	=head3 cf::object
		2465
		2466	=cut
		2467
		2468	package cf::object;
		2469
		2470	=over 4
		2471
		2472	=item $ob->inv_recursive
		2473
		2474	Returns the inventory of the object I<and> their inventories, recursively,
		2475	but I<not> the object itself.
		2476
		2477	=cut
		2478
		2479	sub inv_recursive_;
		2480	sub inv_recursive_ {
		2481	map { $_, inv_recursive_ $_->inv } @_
		2482	}
		2483
		2484	sub inv_recursive {
		2485	inv_recursive_ inv $_[0]
		2486	}
		2487
		2488	=item $ref = $ob->ref
		2489
		2490	Creates and returns a persistent reference to an object that can be stored as a string.
		2491
		2492	=item $ob = cf::object::deref ($refstring)
		2493
		2494	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2495	even if the object actually exists. May block.
		2496
		2497	=cut
		2498
		2499	sub deref {
		2500	my ($ref) = @_;
		2501
		2502	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2503	my ($uuid, $name) = ($1, $2);
		2504	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2505	or return;
		2506	$pl->ob->uuid eq $uuid
		2507	or return;
		2508
		2509	$pl->ob
		2510	} else {
		2511	warn "$ref: cannot resolve object reference\n";
		2512	undef
		2513	}
1426	}	2514	}
1427		2515
1428	package cf;	2516	package cf;
1429		2517
1430	=back	2518	=back
1431
1432		2519
1433	=head3 cf::object::player	2520	=head3 cf::object::player
1434		2521
1435	=over 4	2522	=over 4
1436		2523
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2526	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1440	can be C<undef>. Does the right thing when the player is currently in a	2527	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2528	dialogue with the given NPC character.
1442		2529
1443	=cut	2530	=cut
		2531
		2532	our $SAY_CHANNEL = {
		2533	id => "say",
		2534	title => "Map",
		2535	reply => "say ",
		2536	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2537	};
		2538
		2539	our $CHAT_CHANNEL = {
		2540	id => "chat",
		2541	title => "Chat",
		2542	reply => "chat ",
		2543	tooltip => "Player chat and shouts, global to the server.",
		2544	};
1444		2545
1445	# rough implementation of a future "reply" method that works	2546	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2547	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2548	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2549	sub cf::object::player::reply($$$;$) {
…		…
1450		2551
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2552	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2553
1453	if ($self->{record_replies}) {	2554	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2555	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2556
1455	} else {	2557	} else {
		2558	my $pl = $self->contr;
		2559
		2560	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2561	my $dialog = $pl->{npc_dialog};
		2562	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2563
		2564	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2565	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2566	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2567	}
1458	}	2568	}
		2569	}
		2570
		2571	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2572
		2573	=cut
		2574
		2575	sub cf::object::send_msg {
		2576	my $pl = shift->contr
		2577	or return;
		2578	$pl->send_msg (@_);
1459	}	2579	}
1460		2580
1461	=item $player_object->may ("access")	2581	=item $player_object->may ("access")
1462		2582
1463	Returns wether the given player is authorized to access resource "access"	2583	Returns wether the given player is authorized to access resource "access"
…		…
1476		2596
1477	=item $player_object->enter_link	2597	=item $player_object->enter_link
1478		2598
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2599	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2600
1481	The player should be reaosnably safe there for short amounts of time. You	2601	The player should be reasonably safe there for short amounts of time (e.g.
1482	I<MUST> call C<leave_link> as soon as possible, though.	2602	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2603	though, as the player cannot control the character while it is on the link
		2604	map.
		2605
		2606	Will never block.
1483		2607
1484	=item $player_object->leave_link ($map, $x, $y)	2608	=item $player_object->leave_link ($map, $x, $y)
1485		2609
1486	Moves the player out of the specila link map onto the given map. If the	2610	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2611	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2612	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2613	fails, to the emergency map position.
1490		2614
1491	Might block.	2615	Might block.
1492		2616
1493	=cut	2617	=cut
		2618
		2619	sub link_map {
		2620	unless ($LINK_MAP) {
		2621	$LINK_MAP = cf::map::find "{link}"
		2622	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2623	$LINK_MAP->load;
		2624	}
		2625
		2626	$LINK_MAP
		2627	}
1494		2628
1495	sub cf::object::player::enter_link {	2629	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2630	my ($self) = @_;
1497		2631
1498	$self->deactivate_recursive;	2632	$self->deactivate_recursive;
1499		2633
1500	return if $self->map == $LINK_MAP;	2634	++$self->{_link_recursion};
		2635
		2636	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2637
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2638	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2639	if $self->map && $self->map->{path} ne "{link}";
1504		2640
1505	$self->enter_map ($LINK_MAP, 20, 20);	2641	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1506	}	2642	}
1507		2643
1508	sub cf::object::player::leave_link {	2644	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2645	my ($self, $map, $x, $y) = @_;
		2646
		2647	return unless $self->contr->active;
1510		2648
1511	my $link_pos = delete $self->{_link_pos};	2649	my $link_pos = delete $self->{_link_pos};
1512		2650
1513	unless ($map) {	2651	unless ($map) {
1514	# restore original map position	2652	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	2653	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	2654	$map = cf::map::find $map;
1517		2655
1518	unless ($map) {	2656	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	2657	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	2658	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	2659	or die "FATAL: cannot load emergency map\n";
1522	}	2660	}
1523	}	2661	}
1524		2662
1525	($x, $y) = (-1, -1)	2663	($x, $y) = (-1, -1)
1526	unless (defined $x) && (defined $y);	2664	unless (defined $x) && (defined $y);
1527		2665
1528	# use -1 or undef as default coordinates, not 0, 0	2666	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2667	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2668	if $x <= 0 && $y <= 0;
1531		2669
1532	$map->load;	2670	$map->load;
		2671	$map->load_neighbours;
1533		2672
		2673	return unless $self->contr->active;
		2674
		2675	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2676	if ($self->enter_map ($map, $x, $y)) {
		2677	# entering was successful
		2678	delete $self->{_link_recursion};
		2679	# only activate afterwards, to support waiting in hooks
1534	$self->activate_recursive;	2680	$self->activate_recursive;
1535	$self->enter_map ($map, $x, $y);
1536	}
1537
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($pl) = @_;
1541
1542	# abort map switching before logout
1543	if ($pl->ob->{_link_pos}) {
1544	cf::sync_job {
1545	$pl->ob->leave_link
1546	};
1547	}
1548	},	2681	}
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2682
1552	# try to abort aborted map switching on player login :)	2683	}
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;
1556	cf::async {
1557	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;
1561	};
1562	}
1563	},
1564	);
1565		2684
1566	=item $player_object->goto_map ($path, $x, $y)	2685	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1567		2686
1568	=cut	2687	Moves the player to the given map-path and coordinates by first freezing
		2688	her, loading and preparing them map, calling the provided $check callback
		2689	that has to return the map if sucecssful, and then unfreezes the player on
		2690	the new (success) or old (failed) map position. In either case, $done will
		2691	be called at the end of this process.
1569		2692
		2693	Note that $check will be called with a potentially non-loaded map, so if
		2694	it needs a loaded map it has to call C<< ->load >>.
		2695
		2696	=cut
		2697
		2698	our $GOTOGEN;
		2699
1570	sub cf::object::player::goto_map {	2700	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	2701	my ($self, $path, $x, $y, $check, $done) = @_;
		2702
		2703	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2704	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2705	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2706	($path, $x, $y) = @$EMERGENCY_POSITION;
		2707	}
		2708
		2709	# do generation counting so two concurrent goto's will be executed in-order
		2710	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1572		2711
1573	$self->enter_link;	2712	$self->enter_link;
1574		2713
1575	(cf::async {	2714	(async {
1576	$path = new cf::path $path;	2715	$Coro::current->{desc} = "player::goto $path $x $y";
1577		2716
1578	my $map = cf::map::find_map $path->as_string;	2717	# *tag paths override both path and x|y
		2718	if ($path =~ /^\*(.*)$/) {
		2719	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2720	my $ob = $obs[rand @obs];
		2721
		2722	# see if we actually can go there
		2723	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2724	$ob = $obs[rand @obs];
		2725	} else {
		2726	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2727	}
		2728	# else put us there anyways for now #d#
		2729
		2730	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2731	} else {
		2732	($path, $x, $y) = (undef, undef, undef);
		2733	}
		2734	}
		2735
		2736	my $map = eval {
		2737	my $map = defined $path ? cf::map::find $path : undef;
		2738
		2739	if ($map) {
1579	$map = $map->customise_for ($self) if $map;	2740	$map = $map->customise_for ($self);
1580		2741	$map = $check->($map, $x, $y, $self) if $check && $map;
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	2742	} else {
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2743	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2744	}
1585		2745
		2746	$map
		2747	};
		2748
		2749	if ($@) {
		2750	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2751	LOG llevError | logBacktrace, Carp::longmess $@;
		2752	}
		2753
		2754	if ($gen == $self->{_goto_generation}) {
		2755	delete $self->{_goto_generation};
1586	$self->leave_link ($map, $x, $y);	2756	$self->leave_link ($map, $x, $y);
		2757	}
		2758
		2759	$done->($self) if $done;
1587	})->prio (1);	2760	})->prio (1);
1588	}	2761	}
1589		2762
1590	=item $player_object->enter_exit ($exit_object)	2763	=item $player_object->enter_exit ($exit_object)
1591		2764
…		…
1593		2766
1594	sub parse_random_map_params {	2767	sub parse_random_map_params {
1595	my ($spec) = @_;	2768	my ($spec) = @_;
1596		2769
1597	my $rmp = { # defaults	2770	my $rmp = { # defaults
1598	xsize => 10,	2771	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	2772	ysize => (cf::rndm 15, 40),
		2773	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2774	#layout => string,
1600	};	2775	};
1601		2776
1602	for (split /\n/, $spec) {	2777	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	2778	my ($k, $v) = split /\s+/, $_, 2;
1604		2779
…		…
1616	# that depends on the exit object	2791	# that depends on the exit object
1617		2792
1618	my $rmp = parse_random_map_params $exit->msg;	2793	my $rmp = parse_random_map_params $exit->msg;
1619		2794
1620	if ($exit->map) {	2795	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2796	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2797	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2798	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2799	$rmp->{origin_y} = $exit->y;
		2800
		2801	$exit->map->touch;
1625	}	2802	}
1626		2803
1627	$rmp->{random_seed} ||= $exit->random_seed;	2804	$rmp->{random_seed} ||= $exit->random_seed;
1628		2805
1629	my $data = cf::to_json $rmp;	2806	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1630	my $md5 = Digest::MD5::md5_hex $data;	2807	my $md5 = Digest::MD5::md5_hex $data;
		2808	my $meta = "$RANDOMDIR/$md5.meta";
1631		2809
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2810	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2811	aio_write $fh, 0, (length $data), $data, 0;
		2812	undef $fh;
		2813	aio_rename "$meta~", $meta;
1634		2814
		2815	my $slaying = "?random/$md5";
		2816
		2817	if ($exit->valid) {
1635	$exit->slaying ("?random/$md5");	2818	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2819	$exit->msg (undef);
		2820	}
1637	}	2821	}
1638	}	2822	}
1639		2823
1640	sub cf::object::player::enter_exit {	2824	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2825	my ($self, $exit) = @_;
1642		2826
1643	return unless $self->type == cf::PLAYER;	2827	return unless $self->type == cf::PLAYER;
1644		2828
1645	$self->enter_link;	2829	$self->enter_link;
1646		2830
1647	(cf::async {	2831	(async {
		2832	$Coro::current->{desc} = "enter_exit";
		2833
1648	unless (eval {	2834	unless (eval {
		2835	$self->deactivate_recursive; # just to be sure
		2836
		2837	# random map handling
		2838	{
		2839	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2840
1649	prepare_random_map $exit	2841	prepare_random_map $exit
1650	if $exit->slaying eq "/!";	2842	if $exit->slaying eq "/!";
		2843	}
1651		2844
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2845	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2846	my $x = $exit->stats->hp;
		2847	my $y = $exit->stats->sp;
1654		2848
		2849	$self->goto ($map, $x, $y);
		2850
		2851	# if exit is damned, update players death & WoR home-position
		2852	$self->contr->savebed ($map, $x, $y)
		2853	if $exit->flag (cf::FLAG_DAMNED);
		2854
1655	1;	2855	1
1656	}) {	2856	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2857	$self->message ("Something went wrong deep within the deliantra server. "
1658	. "I'll try to bring you back to the map you were before. "	2858	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2859	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2860	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2861
1662	warn "ERROR in enter_exit: $@";	2862	error "ERROR in enter_exit: $@";
1663	$self->leave_link;	2863	$self->leave_link;
1664	}	2864	}
1665	})->prio (1);	2865	})->prio (1);
1666	}	2866	}
1667		2867
…		…
1678		2878
1679	sub cf::client::send_drawinfo {	2879	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2880	my ($self, $text, $flags) = @_;
1681		2881
1682	utf8::encode $text;	2882	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2883	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2884	}
1685		2885
		2886	=item $client->send_big_packet ($pkt)
		2887
		2888	Like C<send_packet>, but tries to compress large packets, and fragments
		2889	them as required.
		2890
		2891	=cut
		2892
		2893	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2894
		2895	sub cf::client::send_big_packet {
		2896	my ($self, $pkt) = @_;
		2897
		2898	# try lzf for large packets
		2899	$pkt = "lzf " . Compress::LZF::compress $pkt
		2900	if 1024 <= length $pkt and $self->{can_lzf};
		2901
		2902	# split very large packets
		2903	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2904	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2905	$pkt = "frag";
		2906	}
		2907
		2908	$self->send_packet ($pkt);
		2909	}
		2910
		2911	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2912
		2913	Send a drawinfo or msg packet to the client, formatting the msg for the
		2914	client if neccessary. C<$type> should be a string identifying the type of
		2915	the message, with C<log> being the default. If C<$color> is negative, suppress
		2916	the message unless the client supports the msg packet.
		2917
		2918	=cut
		2919
		2920	# non-persistent channels (usually the info channel)
		2921	our %CHANNEL = (
		2922	"c/motd" => {
		2923	id => "infobox",
		2924	title => "MOTD",
		2925	reply => undef,
		2926	tooltip => "The message of the day",
		2927	},
		2928	"c/identify" => {
		2929	id => "infobox",
		2930	title => "Identify",
		2931	reply => undef,
		2932	tooltip => "Items recently identified",
		2933	},
		2934	"c/examine" => {
		2935	id => "infobox",
		2936	title => "Examine",
		2937	reply => undef,
		2938	tooltip => "Signs and other items you examined",
		2939	},
		2940	"c/shopinfo" => {
		2941	id => "infobox",
		2942	title => "Shop Info",
		2943	reply => undef,
		2944	tooltip => "What your bargaining skill tells you about the shop",
		2945	},
		2946	"c/book" => {
		2947	id => "infobox",
		2948	title => "Book",
		2949	reply => undef,
		2950	tooltip => "The contents of a note or book",
		2951	},
		2952	"c/lookat" => {
		2953	id => "infobox",
		2954	title => "Look",
		2955	reply => undef,
		2956	tooltip => "What you saw there",
		2957	},
		2958	"c/who" => {
		2959	id => "infobox",
		2960	title => "Players",
		2961	reply => undef,
		2962	tooltip => "Shows players who are currently online",
		2963	},
		2964	"c/body" => {
		2965	id => "infobox",
		2966	title => "Body Parts",
		2967	reply => undef,
		2968	tooltip => "Shows which body parts you posess and are available",
		2969	},
		2970	"c/statistics" => {
		2971	id => "infobox",
		2972	title => "Statistics",
		2973	reply => undef,
		2974	tooltip => "Shows your primary statistics",
		2975	},
		2976	"c/skills" => {
		2977	id => "infobox",
		2978	title => "Skills",
		2979	reply => undef,
		2980	tooltip => "Shows your experience per skill and item power",
		2981	},
		2982	"c/shopitems" => {
		2983	id => "infobox",
		2984	title => "Shop Items",
		2985	reply => undef,
		2986	tooltip => "Shows the items currently for sale in this shop",
		2987	},
		2988	"c/resistances" => {
		2989	id => "infobox",
		2990	title => "Resistances",
		2991	reply => undef,
		2992	tooltip => "Shows your resistances",
		2993	},
		2994	"c/pets" => {
		2995	id => "infobox",
		2996	title => "Pets",
		2997	reply => undef,
		2998	tooltip => "Shows information abotu your pets/a specific pet",
		2999	},
		3000	"c/perceiveself" => {
		3001	id => "infobox",
		3002	title => "Perceive Self",
		3003	reply => undef,
		3004	tooltip => "You gained detailed knowledge about yourself",
		3005	},
		3006	"c/uptime" => {
		3007	id => "infobox",
		3008	title => "Uptime",
		3009	reply => undef,
		3010	tooltip => "How long the server has been running since last restart",
		3011	},
		3012	"c/mapinfo" => {
		3013	id => "infobox",
		3014	title => "Map Info",
		3015	reply => undef,
		3016	tooltip => "Information related to the maps",
		3017	},
		3018	"c/party" => {
		3019	id => "party",
		3020	title => "Party",
		3021	reply => "gsay ",
		3022	tooltip => "Messages and chat related to your party",
		3023	},
		3024	"c/death" => {
		3025	id => "death",
		3026	title => "Death",
		3027	reply => undef,
		3028	tooltip => "Reason for and more info about your most recent death",
		3029	},
		3030	"c/say" => $SAY_CHANNEL,
		3031	"c/chat" => $CHAT_CHANNEL,
		3032	);
		3033
		3034	sub cf::client::send_msg {
		3035	my ($self, $channel, $msg, $color, @extra) = @_;
		3036
		3037	$msg = $self->pl->expand_cfpod ($msg)
		3038	unless $color & cf::NDI_VERBATIM;
		3039
		3040	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3041
		3042	# check predefined channels, for the benefit of C
		3043	if ($CHANNEL{$channel}) {
		3044	$channel = $CHANNEL{$channel};
		3045
		3046	$self->ext_msg (channel_info => $channel);
		3047	$channel = $channel->{id};
		3048
		3049	} elsif (ref $channel) {
		3050	# send meta info to client, if not yet sent
		3051	unless (exists $self->{channel}{$channel->{id}}) {
		3052	$self->{channel}{$channel->{id}} = $channel;
		3053	$self->ext_msg (channel_info => $channel);
		3054	}
		3055
		3056	$channel = $channel->{id};
		3057	}
		3058
		3059	return unless @extra || length $msg;
		3060
		3061	# default colour, mask it out
		3062	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3063	if $color & cf::NDI_DEF;
		3064
		3065	my $pkt = "msg "
		3066	. $self->{json_coder}->encode (
		3067	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3068	);
		3069
		3070	$self->send_big_packet ($pkt);
		3071	}
		3072
		3073	=item $client->ext_msg ($type, @msg)
		3074
		3075	Sends an ext event to the client.
		3076
		3077	=cut
		3078
		3079	sub cf::client::ext_msg($$@) {
		3080	my ($self, $type, @msg) = @_;
		3081
		3082	if ($self->extcmd == 2) {
		3083	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3084	} elsif ($self->extcmd == 1) { # TODO: remove
		3085	push @msg, msgtype => "event_$type";
		3086	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3087	}
		3088	}
		3089
		3090	=item $client->ext_reply ($msgid, @msg)
		3091
		3092	Sends an ext reply to the client.
		3093
		3094	=cut
		3095
		3096	sub cf::client::ext_reply($$@) {
		3097	my ($self, $id, @msg) = @_;
		3098
		3099	if ($self->extcmd == 2) {
		3100	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3101	} elsif ($self->extcmd == 1) {
		3102	#TODO: version 1, remove
		3103	unshift @msg, msgtype => "reply", msgid => $id;
		3104	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3105	}
		3106	}
1686		3107
1687	=item $success = $client->query ($flags, "text", \&cb)	3108	=item $success = $client->query ($flags, "text", \&cb)
1688		3109
1689	Queues a query to the client, calling the given callback with	3110	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3111	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1691	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3112	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1692		3113
1693	Queries can fail, so check the return code. Or don't, as queries will become	3114	Queries can fail, so check the return code. Or don't, as queries will
1694	reliable at some point in the future.	3115	become reliable at some point in the future.
1695		3116
1696	=cut	3117	=cut
1697		3118
1698	sub cf::client::query {	3119	sub cf::client::query {
1699	my ($self, $flags, $text, $cb) = @_;	3120	my ($self, $flags, $text, $cb) = @_;
…		…
1707	utf8::encode $text;	3128	utf8::encode $text;
1708	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3129	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1709		3130
1710	$self->send_packet ($self->{query_queue}[0][0])	3131	$self->send_packet ($self->{query_queue}[0][0])
1711	if @{ $self->{query_queue} } == 1;	3132	if @{ $self->{query_queue} } == 1;
		3133
		3134	1
1712	}	3135	}
1713		3136
1714	cf::client->attach (	3137	cf::client->attach (
		3138	on_connect => sub {
		3139	my ($ns) = @_;
		3140
		3141	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3142	},
1715	on_reply => sub {	3143	on_reply => sub {
1716	my ($ns, $msg) = @_;	3144	my ($ns, $msg) = @_;
1717		3145
1718	# this weird shuffling is so that direct followup queries	3146	# this weird shuffling is so that direct followup queries
1719	# get handled first	3147	# get handled first
1720	my $queue = delete $ns->{query_queue}	3148	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	3149	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		3150
1723	(shift @$queue)->[1]->($msg);	3151	(shift @$queue)->[1]->($msg);
		3152	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		3153
1725	push @{ $ns->{query_queue} }, @$queue;	3154	push @{ $ns->{query_queue} }, @$queue;
1726		3155
1727	if (@{ $ns->{query_queue} } == @$queue) {	3156	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	3157	if (@$queue) {
…		…
1730	} else {	3159	} else {
1731	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3160	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1732	}	3161	}
1733	}	3162	}
1734	},	3163	},
		3164	on_exticmd => sub {
		3165	my ($ns, $buf) = @_;
		3166
		3167	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3168
		3169	if (ref $msg) {
		3170	my ($type, $reply, @payload) =
		3171	"ARRAY" eq ref $msg
		3172	? @$msg
		3173	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3174
		3175	my @reply;
		3176
		3177	if (my $cb = $EXTICMD{$type}) {
		3178	@reply = $cb->($ns, @payload);
		3179	}
		3180
		3181	$ns->ext_reply ($reply, @reply)
		3182	if $reply;
		3183
		3184	} else {
		3185	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3186	}
		3187
		3188	cf::override;
		3189	},
1735	);	3190	);
1736		3191
1737	=item $client->coro (\&cb)	3192	=item $client->async (\&cb)
1738		3193
1739	Create a new coroutine, running the specified callback. The coroutine will	3194	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	3195	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	3196	or loss of connection).
1742		3197
1743	=cut	3198	=cut
1744		3199
1745	sub cf::client::coro {	3200	sub cf::client::async {
1746	my ($self, $cb) = @_;	3201	my ($self, $cb) = @_;
1747		3202
1748	my $coro = &cf::async ($cb);	3203	my $coro = &Coro::async ($cb);
1749		3204
1750	$coro->on_destroy (sub {	3205	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	3206	delete $self->{_coro}{$coro+0};
1752	});	3207	});
1753		3208
…		…
1755		3210
1756	$coro	3211	$coro
1757	}	3212	}
1758		3213
1759	cf::client->attach (	3214	cf::client->attach (
1760	on_destroy => sub {	3215	on_client_destroy => sub {
1761	my ($ns) = @_;	3216	my ($ns) = @_;
1762		3217
1763	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3218	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1764	},	3219	},
1765	);	3220	);
…		…
1780	our $safe = new Safe "safe";	3235	our $safe = new Safe "safe";
1781	our $safe_hole = new Safe::Hole;	3236	our $safe_hole = new Safe::Hole;
1782		3237
1783	$SIG{FPE} = 'IGNORE';	3238	$SIG{FPE} = 'IGNORE';
1784		3239
1785	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3240	$safe->permit_only (Opcode::opset qw(
		3241	:base_core :base_mem :base_orig :base_math :base_loop
		3242	grepstart grepwhile mapstart mapwhile
		3243	sort time
		3244	));
1786		3245
1787	# here we export the classes and methods available to script code	3246	# here we export the classes and methods available to script code
1788		3247
1789	=pod	3248	=pod
1790		3249
1791	The following fucntions and emthods are available within a safe environment:	3250	The following functions and methods are available within a safe environment:
1792		3251
1793	cf::object contr pay_amount pay_player map	3252	cf::object
		3253	contr pay_amount pay_player map x y force_find force_add destroy
		3254	insert remove name archname title slaying race decrease split
		3255	value
		3256
1794	cf::object::player player	3257	cf::object::player
1795	cf::player peaceful	3258	player
1796	cf::map trigger	3259
		3260	cf::player
		3261	peaceful
		3262
		3263	cf::map
		3264	trigger
1797		3265
1798	=cut	3266	=cut
1799		3267
1800	for (	3268	for (
1801	["cf::object" => qw(contr pay_amount pay_player map)],	3269	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3270	insert remove inv nrof name archname title slaying race
		3271	decrease split destroy change_exp value msg lore send_msg)],
1802	["cf::object::player" => qw(player)],	3272	["cf::object::player" => qw(player)],
1803	["cf::player" => qw(peaceful)],	3273	["cf::player" => qw(peaceful send_msg)],
1804	["cf::map" => qw(trigger)],	3274	["cf::map" => qw(trigger)],
1805	) {	3275	) {
1806	no strict 'refs';
1807	my ($pkg, @funs) = @$_;	3276	my ($pkg, @funs) = @$_;
1808	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3277	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1809	for @funs;	3278	for @funs;
1810	}	3279	}
1811		3280
…		…
1826		3295
1827	my $qcode = $code;	3296	my $qcode = $code;
1828	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3297	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1829	$qcode =~ s/\n/\\n/g;	3298	$qcode =~ s/\n/\\n/g;
1830		3299
		3300	%vars = (_dummy => 0) unless %vars;
		3301
		3302	my @res;
1831	local $_;	3303	local $_;
1832	local @safe::cf::_safe_eval_args = values %vars;
1833		3304
1834	my $eval =	3305	my $eval =
1835	"do {\n"	3306	"do {\n"
1836	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3307	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1837	. "#line 0 \"{$qcode}\"\n"	3308	. "#line 0 \"{$qcode}\"\n"
1838	. $code	3309	. $code
1839	. "\n}"	3310	. "\n}"
1840	;	3311	;
1841		3312
		3313	if ($CFG{safe_eval}) {
1842	sub_generation_inc;	3314	sub_generation_inc;
		3315	local @safe::cf::_safe_eval_args = values %vars;
1843	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3316	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1844	sub_generation_inc;	3317	sub_generation_inc;
		3318	} else {
		3319	local @cf::_safe_eval_args = values %vars;
		3320	@res = wantarray ? eval eval : scalar eval $eval;
		3321	}
1845		3322
1846	if ($@) {	3323	if ($@) {
1847	warn "$@";	3324	warn "$@",
1848	warn "while executing safe code '$code'\n";	3325	"while executing safe code '$code'\n",
1849	warn "with arguments " . (join " ", %vars) . "\n";	3326	"with arguments " . (join " ", %vars) . "\n";
1850	}	3327	}
1851		3328
1852	wantarray ? @res : $res[0]	3329	wantarray ? @res : $res[0]
1853	}	3330	}
1854		3331
…		…
1868	=cut	3345	=cut
1869		3346
1870	sub register_script_function {	3347	sub register_script_function {
1871	my ($fun, $cb) = @_;	3348	my ($fun, $cb) = @_;
1872		3349
1873	no strict 'refs';	3350	$fun = "safe::$fun" if $CFG{safe_eval};
1874	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3351	*$fun = $safe_hole->wrap ($cb);
1875	}	3352	}
1876		3353
1877	=back	3354	=back
1878		3355
1879	=cut	3356	=cut
1880		3357
1881	#############################################################################	3358	#############################################################################
		3359	# the server's init and main functions
1882		3360
1883	=head2 EXTENSION DATABASE SUPPORT	3361	sub load_facedata($) {
		3362	my ($path) = @_;
1884		3363
1885	Crossfire maintains a very simple database for extension use. It can	3364	# HACK to clear player env face cache, we need some signal framework
1886	currently store anything that can be serialised using Storable, which	3365	# for this (global event?)
1887	excludes objects.	3366	%ext::player_env::MUSIC_FACE_CACHE = ();
1888		3367
1889	The parameter C<$family> should best start with the name of the extension	3368	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1890	using it, it should be unique.
1891		3369
1892	=over 4	3370	trace "loading facedata from $path\n";
1893		3371
1894	=item $hashref = cf::db_get $family	3372	my $facedata;
		3373	0 < aio_load $path, $facedata
		3374	or die "$path: $!";
1895		3375
1896	Return a hashref for use by the extension C<$family>, which can be	3376	$facedata = Coro::Storable::thaw $facedata;
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899		3377
1900	=item $value = cf::db_get $family => $key	3378	$facedata->{version} == 2
		3379	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		3380
1902	Returns a single value from the database	3381	# patch in the exptable
1903		3382	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1904	=item cf::db_put $family => $hashref	3383	$facedata->{resource}{"res/exp_table"} = {
1905		3384	type => FT_RSRC,
1906	Stores the given family hashref into the database. Updates are delayed, if	3385	data => $exp_table,
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3386	hash => (Digest::MD5::md5 $exp_table),
1908
1909	=item cf::db_put $family => $key => $value
1910
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921
1922	=cut
1923
1924	our $DB;
1925
1926	{
1927	my $path = cf::localdir . "/database.pst";
1928
1929	sub db_load() {
1930	$DB = stat $path ? Storable::retrieve $path : { };
1931	}
1932
1933	my $pid;
1934
1935	sub db_save() {
1936	waitpid $pid, 0 if $pid;
1937	if (0 == ($pid = fork)) {
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	3387	};
		3388	cf::cede_to_tick;
1955		3389
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}	3390	{
		3391	my $faces = $facedata->{faceinfo};
1960		3392
1961	sub db_get($;$) {	3393	while (my ($face, $info) = each %$faces) {
1962	@_ >= 2	3394	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1963	? $DB->{$_[0]}{$_[1]}
1964	: ($DB->{$_[0]} ||= { })
1965	}
1966		3395
1967	sub db_put($$;$) {	3396	cf::face::set_visibility $idx, $info->{visibility};
1968	if (@_ >= 3) {	3397	cf::face::set_magicmap $idx, $info->{magicmap};
1969	$DB->{$_[0]}{$_[1]} = $_[2];	3398	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1970	} else {	3399	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975		3400
1976	cf::global->attach (	3401	cf::cede_to_tick;
1977	prio => 10000,
1978	on_cleanup => sub {
1979	db_sync;
1980	},	3402	}
1981	);
1982	}
1983		3403
1984	#############################################################################	3404	while (my ($face, $info) = each %$faces) {
1985	# the server's main()	3405	next unless $info->{smooth};
1986		3406
1987	sub cfg_load {	3407	my $idx = cf::face::find $face
		3408	or next;
		3409
		3410	if (my $smooth = cf::face::find $info->{smooth}) {
		3411	cf::face::set_smooth $idx, $smooth;
		3412	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3413	} else {
		3414	error "smooth face '$info->{smooth}' not found for face '$face'";
		3415	}
		3416
		3417	cf::cede_to_tick;
		3418	}
		3419	}
		3420
		3421	{
		3422	my $anims = $facedata->{animinfo};
		3423
		3424	while (my ($anim, $info) = each %$anims) {
		3425	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3426	cf::cede_to_tick;
		3427	}
		3428
		3429	cf::anim::invalidate_all; # d'oh
		3430	}
		3431
		3432	{
		3433	my $res = $facedata->{resource};
		3434
		3435	while (my ($name, $info) = each %$res) {
		3436	if (defined $info->{type}) {
		3437	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3438
		3439	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3440	cf::face::set_type $idx, $info->{type};
		3441	} else {
		3442	$RESOURCE{$name} = $info; # unused
		3443	}
		3444
		3445	cf::cede_to_tick;
		3446	}
		3447	}
		3448
		3449	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3450
		3451	1
		3452	}
		3453
		3454	register_exticmd fx_want => sub {
		3455	my ($ns, $want) = @_;
		3456
		3457	while (my ($k, $v) = each %$want) {
		3458	$ns->fx_want ($k, $v);
		3459	}
		3460	};
		3461
		3462	sub load_resource_file($) {
		3463	my $guard = lock_acquire "load_resource_file";
		3464
		3465	my $status = load_resource_file_ $_[0];
		3466	get_slot 0.1, 100;
		3467	cf::arch::commit_load;
		3468
		3469	$status
		3470	}
		3471
		3472	sub reload_regions {
		3473	# HACK to clear player env face cache, we need some signal framework
		3474	# for this (global event?)
		3475	%ext::player_env::MUSIC_FACE_CACHE = ();
		3476
		3477	load_resource_file "$MAPDIR/regions"
		3478	or die "unable to load regions file\n";
		3479
		3480	for (cf::region::list) {
		3481	$_->{match} = qr/$_->{match}/
		3482	if exists $_->{match};
		3483	}
		3484	}
		3485
		3486	sub reload_facedata {
		3487	load_facedata "$DATADIR/facedata"
		3488	or die "unable to load facedata\n";
		3489	}
		3490
		3491	sub reload_archetypes {
		3492	load_resource_file "$DATADIR/archetypes"
		3493	or die "unable to load archetypes\n";
		3494	}
		3495
		3496	sub reload_treasures {
		3497	load_resource_file "$DATADIR/treasures"
		3498	or die "unable to load treasurelists\n";
		3499	}
		3500
		3501	sub reload_sound {
		3502	trace "loading sound config from $DATADIR/sound\n";
		3503
		3504	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3505	or die "$DATADIR/sound $!";
		3506
		3507	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3508
		3509	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3510	my $sound = $soundconf->{compat}[$_]
		3511	or next;
		3512
		3513	my $face = cf::face::find "sound/$sound->[1]";
		3514	cf::sound::set $sound->[0] => $face;
		3515	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3516	}
		3517
		3518	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3519	my $face = cf::face::find "sound/$v";
		3520	cf::sound::set $k => $face;
		3521	}
		3522	}
		3523
		3524	sub reload_resources {
		3525	trace "reloading resource files...\n";
		3526
		3527	reload_facedata;
		3528	reload_sound;
		3529	reload_archetypes;
		3530	reload_regions;
		3531	reload_treasures;
		3532
		3533	trace "finished reloading resource files\n";
		3534	}
		3535
		3536	sub reload_config {
		3537	trace "reloading config file...\n";
		3538
1988	open my $fh, "<:utf8", cf::confdir . "/config"	3539	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	3540	or return;
1990		3541
1991	local $/;	3542	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	3543	*CFG = YAML::XS::Load scalar <$fh>;
		3544
		3545	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3546
		3547	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3548	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3549
		3550	if (exists $CFG{mlockall}) {
		3551	eval {
		3552	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3553	and die "WARNING: m(un)lockall failed: $!\n";
		3554	};
		3555	warn $@ if $@;
		3556	}
		3557
		3558	trace "finished reloading resource files\n";
		3559	}
		3560
		3561	sub pidfile() {
		3562	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3563	or die "$PIDFILE: $!";
		3564	flock $fh, &Fcntl::LOCK_EX
		3565	or die "$PIDFILE: flock: $!";
		3566	$fh
		3567	}
		3568
		3569	# make sure only one server instance is running at any one time
		3570	sub atomic {
		3571	my $fh = pidfile;
		3572
		3573	my $pid = <$fh>;
		3574	kill 9, $pid if $pid > 0;
		3575
		3576	seek $fh, 0, 0;
		3577	print $fh $$;
		3578	}
		3579
		3580	sub main_loop {
		3581	trace "EV::loop starting\n";
		3582	if (1) {
		3583	EV::loop;
		3584	}
		3585	trace "EV::loop returned\n";
		3586	goto &main_loop unless $REALLY_UNLOOP;
1993	}	3587	}
1994		3588
1995	sub main {	3589	sub main {
		3590	cf::init_globals; # initialise logging
		3591
		3592	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3593	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3594	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3595	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3596
		3597	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3598
1996	# we must not ever block the main coroutine	3599	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	3600	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3601	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	3602	(async {
2000	Event::one_event;	3603	$Coro::current->{desc} = "IDLE BUG HANDLER";
2001	})->();	3604	EV::loop EV::LOOP_ONESHOT;
		3605	})->prio (Coro::PRIO_MAX);
2002	};	3606	};
2003		3607
2004	cfg_load;	3608	evthread_start IO::AIO::poll_fileno;
2005	db_load;	3609
		3610	cf::sync_job {
		3611	cf::init_experience;
		3612	cf::init_anim;
		3613	cf::init_attackmess;
		3614	cf::init_dynamic;
		3615
		3616	cf::load_settings;
		3617	cf::load_materials;
		3618
		3619	reload_resources;
		3620	reload_config;
		3621	db_init;
		3622
		3623	cf::init_uuid;
		3624	cf::init_signals;
		3625	cf::init_skills;
		3626
		3627	cf::init_beforeplay;
		3628
		3629	atomic;
		3630
2006	load_extensions;	3631	load_extensions;
2007	Event::loop;	3632
		3633	utime time, time, $RUNTIMEFILE;
		3634
		3635	# no (long-running) fork's whatsoever before this point(!)
		3636	use POSIX ();
		3637	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3638
		3639	(pop @POST_INIT)->(0) while @POST_INIT;
		3640	};
		3641
		3642	cf::object::thawer::errors_are_fatal 0;
		3643	info "parse errors in files are no longer fatal from this point on.\n";
		3644
		3645	main_loop;
2008	}	3646	}
2009		3647
2010	#############################################################################	3648	#############################################################################
2011	# initialisation	3649	# initialisation and cleanup
2012		3650
		3651	# install some emergency cleanup handlers
		3652	BEGIN {
		3653	our %SIGWATCHER = ();
		3654	for my $signal (qw(INT HUP TERM)) {
		3655	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3656	cf::cleanup "SIG$signal";
		3657	};
		3658	}
		3659	}
		3660
		3661	sub write_runtime_sync {
		3662	my $t0 = AE::time;
		3663
		3664	# first touch the runtime file to show we are still running:
		3665	# the fsync below can take a very very long time.
		3666
		3667	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3668
		3669	my $guard = cf::lock_acquire "write_runtime";
		3670
		3671	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3672	or return;
		3673
		3674	my $value = $cf::RUNTIME + 90 + 10;
		3675	# 10 is the runtime save interval, for a monotonic clock
		3676	# 60 allows for the watchdog to kill the server.
		3677
		3678	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3679	and return;
		3680
		3681	# always fsync - this file is important
		3682	aio_fsync $fh
		3683	and return;
		3684
		3685	# touch it again to show we are up-to-date
		3686	aio_utime $fh, undef, undef;
		3687
		3688	close $fh
		3689	or return;
		3690
		3691	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3692	and return;
		3693
		3694	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3695
		3696	1
		3697	}
		3698
		3699	our $uuid_lock;
		3700	our $uuid_skip;
		3701
		3702	sub write_uuid_sync($) {
		3703	$uuid_skip ||= $_[0];
		3704
		3705	return if $uuid_lock;
		3706	local $uuid_lock = 1;
		3707
		3708	my $uuid = "$LOCALDIR/uuid";
		3709
		3710	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3711	or return;
		3712
		3713	my $value = uuid_seq uuid_cur;
		3714
		3715	unless ($value) {
		3716	info "cowardly refusing to write zero uuid value!\n";
		3717	return;
		3718	}
		3719
		3720	my $value = uuid_str $value + $uuid_skip;
		3721	$uuid_skip = 0;
		3722
		3723	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3724	and return;
		3725
		3726	# always fsync - this file is important
		3727	aio_fsync $fh
		3728	and return;
		3729
		3730	close $fh
		3731	or return;
		3732
		3733	aio_rename "$uuid~", $uuid
		3734	and return;
		3735
		3736	trace "uuid file written ($value).\n";
		3737
		3738	1
		3739
		3740	}
		3741
		3742	sub write_uuid($$) {
		3743	my ($skip, $sync) = @_;
		3744
		3745	$sync ? write_uuid_sync $skip
		3746	: async { write_uuid_sync $skip };
		3747	}
		3748
		3749	sub emergency_save() {
		3750	my $freeze_guard = cf::freeze_mainloop;
		3751
		3752	info "emergency_perl_save: enter\n";
		3753
		3754	# this is a trade-off: we want to be very quick here, so
		3755	# save all maps without fsync, and later call a global sync
		3756	# (which in turn might be very very slow)
		3757	local $USE_FSYNC = 0;
		3758
		3759	cf::sync_job {
		3760	cf::write_runtime_sync; # external watchdog should not bark
		3761
		3762	# use a peculiar iteration method to avoid tripping on perl
		3763	# refcount bugs in for. also avoids problems with players
		3764	# and maps saved/destroyed asynchronously.
		3765	info "emergency_perl_save: begin player save\n";
		3766	for my $login (keys %cf::PLAYER) {
		3767	my $pl = $cf::PLAYER{$login} or next;
		3768	$pl->valid or next;
		3769	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3770	$pl->save;
		3771	}
		3772	info "emergency_perl_save: end player save\n";
		3773
		3774	cf::write_runtime_sync; # external watchdog should not bark
		3775
		3776	info "emergency_perl_save: begin map save\n";
		3777	for my $path (keys %cf::MAP) {
		3778	my $map = $cf::MAP{$path} or next;
		3779	$map->valid or next;
		3780	$map->save;
		3781	}
		3782	info "emergency_perl_save: end map save\n";
		3783
		3784	cf::write_runtime_sync; # external watchdog should not bark
		3785
		3786	info "emergency_perl_save: begin database checkpoint\n";
		3787	BDB::db_env_txn_checkpoint $DB_ENV;
		3788	info "emergency_perl_save: end database checkpoint\n";
		3789
		3790	info "emergency_perl_save: begin write uuid\n";
		3791	write_uuid_sync 1;
		3792	info "emergency_perl_save: end write uuid\n";
		3793
		3794	cf::write_runtime_sync; # external watchdog should not bark
		3795
		3796	trace "emergency_perl_save: syncing database to disk";
		3797	BDB::db_env_txn_checkpoint $DB_ENV;
		3798
		3799	info "emergency_perl_save: starting sync\n";
		3800	IO::AIO::aio_sync sub {
		3801	info "emergency_perl_save: finished sync\n";
		3802	};
		3803
		3804	cf::write_runtime_sync; # external watchdog should not bark
		3805
		3806	trace "emergency_perl_save: flushing outstanding aio requests";
		3807	while (IO::AIO::nreqs || BDB::nreqs) {
		3808	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3809	}
		3810
		3811	cf::write_runtime_sync; # external watchdog should not bark
		3812	};
		3813
		3814	info "emergency_perl_save: leave\n";
		3815	}
		3816
		3817	sub post_cleanup {
		3818	my ($make_core) = @_;
		3819
		3820	IO::AIO::flush;
		3821
		3822	error Carp::longmess "post_cleanup backtrace"
		3823	if $make_core;
		3824
		3825	my $fh = pidfile;
		3826	unlink $PIDFILE if <$fh> == $$;
		3827	}
		3828
		3829	# a safer delete_package, copied from Symbol
		3830	sub clear_package($) {
		3831	my $pkg = shift;
		3832
		3833	# expand to full symbol table name if needed
		3834	unless ($pkg =~ /^main::.*::$/) {
		3835	$pkg = "main$pkg" if $pkg =~ /^::/;
		3836	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3837	$pkg .= '::' unless $pkg =~ /::$/;
		3838	}
		3839
		3840	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3841	my $stem_symtab = *{$stem}{HASH};
		3842
		3843	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3844	or return;
		3845
		3846	# clear all symbols
		3847	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3848	for my $name (keys %$leaf_symtab) {
		3849	_gv_clear *{"$pkg$name"};
		3850	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3851	}
		3852	}
		3853
2013	sub reload() {	3854	sub do_reload_perl() {
2014	# can/must only be called in main	3855	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	3856	if (in_main) {
2016	warn "can only reload from main coroutine\n";	3857	error "can only reload from main coroutine";
2017	return;	3858	return;
2018	}	3859	}
2019		3860
		3861	return if $RELOAD++;
		3862
		3863	my $t1 = AE::time;
		3864
		3865	while ($RELOAD) {
2020	warn "reloading...";	3866	info "reloading...";
2021		3867
2022	local $FREEZE = 1;	3868	trace "entering sync_job";
		3869
		3870	cf::sync_job {
2023	cf::emergency_save;	3871	cf::emergency_save;
2024		3872
2025	eval {
2026	# if anything goes wrong in here, we should simply crash as we already saved
2027
2028	# cancel all watchers
2029	for (Event::all_watchers) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;
2031	}
2032
2033	# cancel all extension coros	3873	trace "cancelling all extension coros";
2034	$_->cancel for values %EXT_CORO;	3874	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();	3875	%EXT_CORO = ();
2036		3876
2037	# unload all extensions	3877	trace "removing commands";
2038	for (@exts) {	3878	%COMMAND = ();
2039	warn "unloading <$_>";
2040	unload_extension $_;
2041	}
2042		3879
2043	# unload all modules loaded from $LIBDIR	3880	trace "removing ext/exti commands";
2044	while (my ($k, $v) = each %INC) {	3881	%EXTCMD = ();
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3882	%EXTICMD = ();
2046		3883
2047	warn "removing <$k>";	3884	trace "unloading/nuking all extensions";
2048	delete $INC{$k};	3885	for my $pkg (@EXTS) {
		3886	trace "... unloading $pkg";
2049		3887
2050	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;
2052
2053	if (my $cb = $k->can ("unload_module")) {	3888	if (my $cb = $pkg->can ("unload")) {
		3889	eval {
2054	$cb->();	3890	$cb->($pkg);
		3891	1
		3892	} or error "$pkg unloaded, but with errors: $@";
		3893	}
		3894
		3895	trace "... clearing $pkg";
		3896	clear_package $pkg;
2055	}	3897	}
2056		3898
2057	Symbol::delete_package $k;	3899	trace "unloading all perl modules loaded from $LIBDIR";
		3900	while (my ($k, $v) = each %INC) {
		3901	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3902
		3903	trace "... unloading $k";
		3904	delete $INC{$k};
		3905
		3906	$k =~ s/\.pm$//;
		3907	$k =~ s/\//::/g;
		3908
		3909	if (my $cb = $k->can ("unload_module")) {
		3910	$cb->();
		3911	}
		3912
		3913	clear_package $k;
2058	}	3914	}
2059		3915
2060	# sync database to disk
2061	cf::db_sync;
2062	IO::AIO::flush;
2063
2064	# get rid of safe::, as good as possible	3916	trace "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	3917	clear_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3918	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		3919
2068	# remove register_script_function callbacks	3920	trace "unloading cf.pm \"a bit\"";
2069	# TODO
2070
2071	# unload cf.pm "a bit"
2072	delete $INC{"cf.pm"};	3921	delete $INC{"cf.pm"};
		3922	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2073		3923
2074	# don't, removes xs symbols, too,	3924	# don't, removes xs symbols, too,
2075	# and global variables created in xs	3925	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	3926	#clear_package __PACKAGE__;
2077		3927
2078	# reload cf.pm	3928	info "unload completed, starting to reload now";
		3929
2079	warn "reloading cf.pm";	3930	trace "reloading cf.pm";
2080	require cf;	3931	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3932	cf::_connect_to_perl_1;
2082		3933
2083	# load config and database again	3934	trace "loading config and database again";
2084	cf::cfg_load;	3935	cf::reload_config;
2085	cf::db_load;
2086		3936
2087	# load extensions
2088	warn "load extensions";	3937	trace "loading extensions";
2089	cf::load_extensions;	3938	cf::load_extensions;
2090		3939
2091	# reattach attachments to objects	3940	if ($REATTACH_ON_RELOAD) {
2092	warn "reattach";	3941	trace "reattaching attachments to objects/players";
2093	_global_reattach;	3942	_global_reattach; # objects, sockets
		3943	trace "reattaching attachments to maps";
		3944	reattach $_ for values %MAP;
		3945	trace "reattaching attachments to players";
		3946	reattach $_ for values %PLAYER;
		3947	}
		3948
		3949	trace "running post_init jobs";
		3950	(pop @POST_INIT)->(1) while @POST_INIT;
		3951
		3952	trace "leaving sync_job";
		3953
		3954	1
		3955	} or do {
		3956	error $@;
		3957	cf::cleanup "error while reloading, exiting.";
		3958	};
		3959
		3960	info "reloaded";
		3961	--$RELOAD;
		3962	}
		3963
		3964	$t1 = AE::time - $t1;
		3965	info "reload completed in ${t1}s\n";
		3966	};
		3967
		3968	our $RELOAD_WATCHER; # used only during reload
		3969
		3970	sub reload_perl() {
		3971	# doing reload synchronously and two reloads happen back-to-back,
		3972	# coro crashes during coro_state_free->destroy here.
		3973
		3974	$RELOAD_WATCHER ||= cf::async {
		3975	Coro::AIO::aio_wait cache_extensions;
		3976
		3977	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3978	do_reload_perl;
		3979	undef $RELOAD_WATCHER;
		3980	};
2094	};	3981	};
2095
2096	if ($@) {
2097	warn $@;
2098	warn "error while reloading, exiting.";
2099	exit 1;
2100	}
2101
2102	warn "reloaded successfully";
2103	};
2104
2105	#############################################################################
2106
2107	unless ($LINK_MAP) {
2108	$LINK_MAP = cf::map::new;
2109
2110	$LINK_MAP->width (41);
2111	$LINK_MAP->height (41);
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,
2120	cb => sub {
2121	$_[0]->w->cancel;
2122
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});
2141
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	3982	}
2147
2148	register "<global>", __PACKAGE__;
2149		3983
2150	register_command "reload" => sub {	3984	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	3985	my ($who, $arg) = @_;
2152		3986
2153	if ($who->flag (FLAG_WIZ)) {	3987	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	3988	$who->message ("reloading server.");
		3989	async {
		3990	$Coro::current->{desc} = "perl_reload";
		3991	reload_perl;
		3992	};
2157	}	3993	}
2158	};	3994	};
2159		3995
2160	unshift @INC, $LIBDIR;	3996	unshift @INC, $LIBDIR;
2161		3997
2162	$TICK_WATCHER = Event->timer (	3998	my $bug_warning = 0;
2163	reentrant => 0,	3999
2164	prio => 0,	4000	our @WAIT_FOR_TICK;
2165	at => $NEXT_TICK || $TICK,	4001	our @WAIT_FOR_TICK_BEGIN;
2166	data => WF_AUTOCANCEL,	4002
2167	cb => sub {	4003	sub wait_for_tick {
2168	unless ($FREEZE) {	4004	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4005
		4006	my $signal = new Coro::Signal;
		4007	push @WAIT_FOR_TICK, $signal;
		4008	$signal->wait;
		4009	}
		4010
		4011	sub wait_for_tick_begin {
		4012	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4013
		4014	my $signal = new Coro::Signal;
		4015	push @WAIT_FOR_TICK_BEGIN, $signal;
		4016	$signal->wait;
		4017	}
		4018
		4019	sub tick {
		4020	if ($Coro::current != $Coro::main) {
		4021	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4022	unless ++$bug_warning > 10;
		4023	return;
		4024	}
		4025
2169	cf::server_tick; # one server iteration	4026	cf::server_tick; # one server iteration
2170	$RUNTIME += $TICK;
2171	}
2172		4027
2173	$NEXT_TICK += $TICK;	4028	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2174		4029
2175	# if we are delayed by four ticks or more, skip them all	4030	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4031	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2177		4032	Coro::async_pool {
2178	$TICK_WATCHER->at ($NEXT_TICK);	4033	$Coro::current->{desc} = "runtime saver";
2179	$TICK_WATCHER->start;
2180	},
2181	);
2182
2183	IO::AIO::max_poll_time $TICK * 0.2;
2184
2185	Event->io (
2186	fd => IO::AIO::poll_fileno,
2187	poll => 'r',
2188	prio => 5,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,
2195	after => 0,
2196	interval => 10,
2197	cb => sub {
2198	(Coro::unblock_sub {
2199	write_runtime	4034	write_runtime_sync
2200	or warn "ERROR: unable to write runtime file: $!";	4035	or error "ERROR: unable to write runtime file: $!";
2201	})->();	4036	};
2202	},	4037	}
2203	);	4038
		4039	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4040	$sig->send;
		4041	}
		4042	while (my $sig = shift @WAIT_FOR_TICK) {
		4043	$sig->send;
		4044	}
		4045
		4046	$LOAD = ($NOW - $TICK_START) / $TICK;
		4047	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4048
		4049	if (0) {
		4050	if ($NEXT_TICK) {
		4051	my $jitter = $TICK_START - $NEXT_TICK;
		4052	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4053	debug "jitter $JITTER\n";#d#
		4054	}
		4055	}
		4056	}
		4057
		4058	{
		4059	# configure BDB
		4060
		4061	BDB::min_parallel 16;
		4062	BDB::max_poll_reqs $TICK * 0.1;
		4063	$AnyEvent::BDB::WATCHER->priority (1);
		4064
		4065	unless ($DB_ENV) {
		4066	$DB_ENV = BDB::db_env_create;
		4067	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4068	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4069	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4070	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4071	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4072
		4073	cf::sync_job {
		4074	eval {
		4075	BDB::db_env_open
		4076	$DB_ENV,
		4077	$BDBDIR,
		4078	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4079	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4080	0666;
		4081
		4082	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4083	};
		4084
		4085	cf::cleanup "db_env_open(db): $@" if $@;
		4086	};
		4087	}
		4088
		4089	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4090	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4091	};
		4092	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4093	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4094	};
		4095	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4096	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4097	};
		4098	}
		4099
		4100	{
		4101	# configure IO::AIO
		4102
		4103	IO::AIO::min_parallel 8;
		4104	IO::AIO::max_poll_time $TICK * 0.1;
		4105	undef $AnyEvent::AIO::WATCHER;
		4106	}
		4107
		4108	my $_log_backtrace;
		4109
		4110	sub _log_backtrace {
		4111	my ($msg, @addr) = @_;
		4112
		4113	$msg =~ s/\n//;
		4114
		4115	# limit the # of concurrent backtraces
		4116	if ($_log_backtrace < 2) {
		4117	++$_log_backtrace;
		4118	my $perl_bt = Carp::longmess $msg;
		4119	async {
		4120	$Coro::current->{desc} = "abt $msg";
		4121
		4122	my @bt = fork_call {
		4123	@addr = map { sprintf "%x", $_ } @addr;
		4124	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4125	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4126	or die "addr2line: $!";
		4127
		4128	my @funcs;
		4129	my @res = <$fh>;
		4130	chomp for @res;
		4131	while (@res) {
		4132	my ($func, $line) = splice @res, 0, 2, ();
		4133	push @funcs, "[$func] $line";
		4134	}
		4135
		4136	@funcs
		4137	};
		4138
		4139	LOG llevInfo, "[ABT] $perl_bt\n";
		4140	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4141	LOG llevInfo, "[ABT] $_\n" for @bt;
		4142	--$_log_backtrace;
		4143	};
		4144	} else {
		4145	LOG llevInfo, "[ABT] $msg\n";
		4146	LOG llevInfo, "[ABT] [suppressed]\n";
		4147	}
		4148	}
		4149
		4150	# load additional modules
		4151	require "cf/$_.pm" for @EXTRA_MODULES;
		4152	cf::_connect_to_perl_2;
2204		4153
2205	END { cf::emergency_save }	4154	END { cf::emergency_save }
2206		4155
2207	1	4156	1
2208		4157

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