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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.151 by root, Mon Jan 8 20:59:15 2007 UTC vs.
Revision 1.547 by root, Sun May 9 22:51:13 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 2.32 ();
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 (Coro::PRIO_MAX); # 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
32		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" };
		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript incloader);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO; # coroutines bound to extensions	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	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		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
76	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
77		187
78	#############################################################################	188	#############################################################################
79		189
80	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
81		191
…		…
88	=item $cf::RUNTIME	198	=item $cf::RUNTIME
89		199
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	201	every server tick.
92		202
93	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		206
95	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
97		211
98	=item $cf::NOW	212	=item $cf::NOW
99		213
100	The time of the last (current) server tick.	214	The time of the last (current) server tick.
101		215
102	=item $cf::TICK	216	=item $cf::TICK
103		217
104	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
105		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
106	=item %cf::CFG	230	=item %cf::CFG
107		231
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	233	from wherever your confdir points to.
110		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one thread
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=cut
		242
		243	sub wait_for_tick();
		244	sub wait_for_tick_begin();
		245
		246	=item @cf::INVOKE_RESULTS
		247
		248	This array contains the results of the last C<invoke ()> call. When
		249	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		250	that call.
		251
		252	=item %cf::REFLECT
		253
		254	Contains, for each (C++) class name, a hash reference with information
		255	about object members (methods, scalars, arrays and flags) and other
		256	metadata, which is useful for introspection.
		257
111	=back	258	=back
112		259
113	=cut	260	=cut
114		261
115	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
116	*CORE::GLOBAL::warn = sub {	263	sub warn (@) { LOG llevWarn , join "", @_ }
		264	sub info (@) { LOG llevInfo , join "", @_ }
		265	sub debug(@) { LOG llevDebug, join "", @_ }
		266	sub trace(@) { LOG llevTrace, join "", @_ }
		267
		268	$Coro::State::WARNHOOK = sub {
117	my $msg = join "", @_;	269	my $msg = join "", @_;
118	utf8::encode $msg;
119		270
120	$msg .= "\n"	271	$msg .= "\n"
121	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
122		273
		274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		275
123	LOG llevError, $msg;	276	LOG llevWarn, $msg;
124	};	277	};
125	}	278
		279	$Coro::State::DIEHOOK = sub {
		280	return unless $^S eq 0; # "eq", not "=="
		281
		282	error Carp::longmess $_[0];
		283
		284	if (in_main) {#d#
		285	error "DIEHOOK called in main context, Coro bug?\n";#d#
		286	return;#d#
		287	}#d#
		288
		289	# kill coroutine otherwise
		290	Coro::terminate
		291	};
126		292
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	297	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		298	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	299	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		300
134	# we bless all objects into (empty) derived classes to force a method lookup	301	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	302	# within the Safe compartment.
136	for my $pkg (qw(	303	for my $pkg (qw(
137	cf::global cf::attachable	304	cf::global cf::attachable
138	cf::object cf::object::player	305	cf::object cf::object::player
139	cf::client cf::player	306	cf::client cf::player
140	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
141	cf::map cf::party cf::region	309	cf::party cf::region
142	)) {	310	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	312	}
146		313
147	$Event::DIED = sub {	314	$EV::DIED = sub {
148	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
149	};	316	};
150		317
151	my %ext_pkg;	318	#############################################################################
152	my @exts;
153	my @hook;
154		319
155	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
156		321
157	=over 4	322	=over 4
158		323
159	=cut	324	=item dumpval $ref
160		325
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	326	=cut
162		327
		328	sub dumpval {
		329	eval {
		330	local $SIG{__DIE__};
		331	my $d;
		332	if (1) {
		333	$d = new Data::Dumper([$_[0]], ["*var"]);
		334	$d->Terse(1);
		335	$d->Indent(2);
		336	$d->Quotekeys(0);
		337	$d->Useqq(1);
		338	#$d->Bless(...);
		339	$d->Seen($_[1]) if @_ > 1;
		340	$d = $d->Dump();
		341	}
		342	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		343	$d
		344	} || "[unable to dump $_[0]: '$@']";
		345	}
		346
163	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
164		348
165	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
166		350
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
175		352
176	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
177		354
178	=cut	355	=cut
179		356
180	sub to_json($) {	357	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	358
182	JSON::Syck::Dump $_[0]	359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
		361
		362	=item cf::post_init { BLOCK }
		363
		364	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		365	but I<before> the server starts ticking again.
		366
		367	The cdoeblock will have a single boolean argument to indicate whether this
		368	is a reload or not.
		369
		370	=cut
		371
		372	sub post_init(&) {
		373	push @POST_INIT, shift;
183	}	374	}
184		375
185	=item cf::lock_wait $string	376	=item cf::lock_wait $string
186		377
187	Wait until the given lock is available. See cf::lock_acquire.	378	Wait until the given lock is available. See cf::lock_acquire.
188		379
189	=item my $lock = cf::lock_acquire $string	380	=item my $lock = cf::lock_acquire $string
190		381
191	Wait until the given lock is available and then acquires it and returns	382	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	383	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	384	for example when the coroutine gets canceled), the lock is automatically
194	returned.	385	returned.
195		386
		387	Locks are *not* recursive, locking from the same coro twice results in a
		388	deadlocked coro.
		389
196	Lock names should begin with a unique identifier (for example, cf::map::find	390	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	391	uses map_find and cf::map::load uses map_load).
198		392
199	=cut	393	=item $locked = cf::lock_active $string
200		394
201	our %LOCK;	395	Return true if the lock is currently active, i.e. somebody has locked it.
		396
		397	=cut
		398
		399	our $LOCKS = new Coro::SemaphoreSet;
202		400
203	sub lock_wait($) {	401	sub lock_wait($) {
204	my ($key) = @_;	402	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	403	}
212		404
213	sub lock_acquire($) {	405	sub lock_acquire($) {
214	my ($key) = @_;	406	$LOCKS->guard ($_[0])
		407	}
215		408
216	# wait, to be sure we are not locked	409	sub lock_active($) {
217	lock_wait $key;	410	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	411	}
226		412
227	sub freeze_mainloop {	413	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	414	tick_inhibit_inc;
229		415
230	my $guard = Coro::guard { $TICK_WATCHER->start };	416	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	417	}
232	$guard	418
		419	=item cf::periodic $interval, $cb
		420
		421	Like EV::periodic, but randomly selects a starting point so that the actions
		422	get spread over time.
		423
		424	=cut
		425
		426	sub periodic($$) {
		427	my ($interval, $cb) = @_;
		428
		429	my $start = rand List::Util::min 180, $interval;
		430
		431	EV::periodic $start, $interval, 0, $cb
		432	}
		433
		434	=item cf::get_slot $time[, $priority[, $name]]
		435
		436	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		437	This call blocks and returns only when you have at least C<$time> seconds
		438	of cpu time till the next tick. The slot is only valid till the next cede.
		439
		440	The optional C<$name> can be used to identify the job to run. It might be
		441	used for statistical purposes and should identify the same time-class.
		442
		443	Useful for short background jobs.
		444
		445	=cut
		446
		447	our @SLOT_QUEUE;
		448	our $SLOT_QUEUE;
		449	our $SLOT_DECAY = 0.9;
		450
		451	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		452	$SLOT_QUEUE = Coro::async {
		453	$Coro::current->desc ("timeslot manager");
		454
		455	my $signal = new Coro::Signal;
		456	my $busy;
		457
		458	while () {
		459	next_job:
		460
		461	my $avail = cf::till_tick;
		462
		463	for (0 .. $#SLOT_QUEUE) {
		464	if ($SLOT_QUEUE[$_][0] <= $avail) {
		465	$busy = 0;
		466	my $job = splice @SLOT_QUEUE, $_, 1, ();
		467	$job->[2]->send;
		468	Coro::cede;
		469	goto next_job;
		470	} else {
		471	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		472	}
		473	}
		474
		475	if (@SLOT_QUEUE) {
		476	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		477	push @cf::WAIT_FOR_TICK, $signal;
		478	$signal->wait;
		479	} else {
		480	$busy = 0;
		481	Coro::schedule;
		482	}
		483	}
		484	};
		485
		486	sub get_slot($;$$) {
		487	return if tick_inhibit || $Coro::current == $Coro::main;
		488
		489	my ($time, $pri, $name) = @_;
		490
		491	$time = clamp $time, 0.01, $TICK * .6;
		492
		493	my $sig = new Coro::Signal;
		494
		495	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		496	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		497	$SLOT_QUEUE->ready;
		498	$sig->wait;
233	}	499	}
234		500
235	=item cf::async { BLOCK }	501	=item cf::async { BLOCK }
236		502
237	Currently the same as Coro::async_pool, meaning you cannot use	503	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		508
243	BEGIN { *async = \&Coro::async_pool }	509	BEGIN { *async = \&Coro::async_pool }
244		510
245	=item cf::sync_job { BLOCK }	511	=item cf::sync_job { BLOCK }
246		512
247	The design of crossfire+ requires that the main coro ($Coro::main) is	513	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	514	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	515	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		516	acceptable.
250		517
251	If it must be done, put the blocking parts into C<sync_job>. This will run	518	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	519	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	520	server will be frozen during this time, so the block should either finish
254	fast or be very important.	521	fast or be very important.
…		…
256	=cut	523	=cut
257		524
258	sub sync_job(&) {	525	sub sync_job(&) {
259	my ($job) = @_;	526	my ($job) = @_;
260		527
261	if ($Coro::current == $Coro::main) {	528	if (in_main) {
		529	my $time = AE::time;
		530
262	# this is the main coro, too bad, we have to block	531	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	532	# till the operation succeeds, freezing the server :/
264		533
265	# TODO: use suspend/resume instead	534	#LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	535
267	my $freeze_guard = freeze_mainloop;	536	my $freeze_guard = freeze_mainloop;
268		537
269	my $busy = 1;	538	my $busy = 1;
270	my @res;	539	my @res;
271		540
272	(async {	541	(async {
		542	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	543	@res = eval { $job->() };
274	warn $@ if $@;	544	error $@ if $@;
275	undef $busy;	545	undef $busy;
276	})->prio (Coro::PRIO_MAX);	546	})->prio (Coro::PRIO_MAX);
277		547
278	while ($busy) {	548	while ($busy) {
279	Coro::cede or Event::one_event;	549	if (Coro::nready) {
		550	Coro::cede_notself;
		551	} else {
		552	EV::loop EV::LOOP_ONESHOT;
280	}	553	}
		554	}
		555
		556	my $time = AE::time - $time;
		557
		558	$TICK_START += $time; # do not account sync jobs to server load
281		559
282	wantarray ? @res : $res[0]	560	wantarray ? @res : $res[0]
283	} else {	561	} else {
284	# we are in another coroutine, how wonderful, everything just works	562	# we are in another coroutine, how wonderful, everything just works
285		563
…		…
287	}	565	}
288	}	566	}
289		567
290	=item $coro = cf::async_ext { BLOCK }	568	=item $coro = cf::async_ext { BLOCK }
291		569
292	Like async, but this coro is automcatially being canceled when the	570	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	571	extension calling this is being unloaded.
294		572
295	=cut	573	=cut
296		574
297	sub async_ext(&) {	575	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	583	$EXT_CORO{$coro+0} = $coro;
306		584
307	$coro	585	$coro
308	}	586	}
309		587
310	sub write_runtime {	588	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		589
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	590	Executes the given code block with the given arguments in a seperate
314	or return;	591	process, returning the results. Everything must be serialisable with
		592	Coro::Storable. May, of course, block. Note that the executed sub may
		593	never block itself or use any form of event handling.
315		594
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	595	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		596
320	aio_fsync $fh	597	sub post_fork {
321	and return;	598	reset_signals;
		599	}
322		600
323	close $fh	601	sub fork_call(&@) {
324	or return;	602	my ($cb, @args) = @_;
325		603
326	aio_rename "$runtime~", $runtime	604	# we seemingly have to make a local copy of the whole thing,
327	and return;	605	# otherwise perl prematurely frees the stuff :/
		606	# TODO: investigate and fix (likely this will be rather laborious)
328		607
		608	my @res = Coro::Util::fork_eval {
		609	cf::post_fork;
		610	&$cb
		611	}, @args;
		612
		613	wantarray ? @res : $res[-1]
		614	}
		615
		616	sub objinfo {
329	1	617	(
		618	"counter value" => cf::object::object_count,
		619	"objects created" => cf::object::create_count,
		620	"objects destroyed" => cf::object::destroy_count,
		621	"freelist size" => cf::object::free_count,
		622	"allocated objects" => cf::object::objects_size,
		623	"active objects" => cf::object::actives_size,
		624	)
		625	}
		626
		627	=item $coin = coin_from_name $name
		628
		629	=cut
		630
		631	our %coin_alias = (
		632	"silver" => "silvercoin",
		633	"silvercoin" => "silvercoin",
		634	"silvercoins" => "silvercoin",
		635	"gold" => "goldcoin",
		636	"goldcoin" => "goldcoin",
		637	"goldcoins" => "goldcoin",
		638	"platinum" => "platinacoin",
		639	"platinumcoin" => "platinacoin",
		640	"platinumcoins" => "platinacoin",
		641	"platina" => "platinacoin",
		642	"platinacoin" => "platinacoin",
		643	"platinacoins" => "platinacoin",
		644	"royalty" => "royalty",
		645	"royalties" => "royalty",
		646	);
		647
		648	sub coin_from_name($) {
		649	$coin_alias{$_[0]}
		650	? cf::arch::find $coin_alias{$_[0]}
		651	: undef
		652	}
		653
		654	=item $value = cf::db_get $family => $key
		655
		656	Returns a single value from the environment database.
		657
		658	=item cf::db_put $family => $key => $value
		659
		660	Stores the given C<$value> in the family. It can currently store binary
		661	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		662
		663	=item $db = cf::db_table "name"
		664
		665	Create and/or open a new database table. The string must not be "db" and must be unique
		666	within each server.
		667
		668	=cut
		669
		670	sub db_table($) {
		671	cf::error "db_get called from main context"
		672	if $Coro::current == $Coro::main;
		673
		674	my ($name) = @_;
		675	my $db = BDB::db_create $DB_ENV;
		676
		677	eval {
		678	$db->set_flags (BDB::CHKSUM);
		679
		680	utf8::encode $name;
		681	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		682	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		683	cf::cleanup "db_open(db): $!" if $!;
		684	};
		685	cf::cleanup "db_open(db): $@" if $@;
		686
		687	$db
		688	}
		689
		690	our $DB;
		691
		692	sub db_init {
		693	$DB ||= db_table "db";
		694	}
		695
		696	sub db_get($$) {
		697	my $key = "$_[0]/$_[1]";
		698
		699	cf::error "db_get called from main context"
		700	if $Coro::current == $Coro::main;
		701
		702	BDB::db_get $DB, undef, $key, my $data;
		703
		704	$! ? ()
		705	: $data
		706	}
		707
		708	sub db_put($$$) {
		709	BDB::dbreq_pri 4;
		710	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		711	}
		712
		713	=item cf::cache $id => [$paths...], $processversion => $process
		714
		715	Generic caching function that returns the value of the resource $id,
		716	caching and regenerating as required.
		717
		718	This function can block.
		719
		720	=cut
		721
		722	sub cache {
		723	my ($id, $src, $processversion, $process) = @_;
		724
		725	my $meta =
		726	join "\x00",
		727	$processversion,
		728	map {
		729	aio_stat $_
		730	and Carp::croak "$_: $!";
		731
		732	($_, (stat _)[7,9])
		733	} @$src;
		734
		735	my $dbmeta = db_get cache => "$id/meta";
		736	if ($dbmeta ne $meta) {
		737	# changed, we may need to process
		738
		739	my @data;
		740	my $md5;
		741
		742	for (0 .. $#$src) {
		743	0 <= aio_load $src->[$_], $data[$_]
		744	or Carp::croak "$src->[$_]: $!";
		745	}
		746
		747	# if processing is expensive, check
		748	# checksum first
		749	if (1) {
		750	$md5 =
		751	join "\x00",
		752	$processversion,
		753	map {
		754	cf::cede_to_tick;
		755	($src->[$_], Digest::MD5::md5_hex $data[$_])
		756	} 0.. $#$src;
		757
		758
		759	my $dbmd5 = db_get cache => "$id/md5";
		760	if ($dbmd5 eq $md5) {
		761	db_put cache => "$id/meta", $meta;
		762
		763	return db_get cache => "$id/data";
		764	}
		765	}
		766
		767	my $t1 = Time::HiRes::time;
		768	my $data = $process->(\@data);
		769	my $t2 = Time::HiRes::time;
		770
		771	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		772
		773	db_put cache => "$id/data", $data;
		774	db_put cache => "$id/md5" , $md5;
		775	db_put cache => "$id/meta", $meta;
		776
		777	return $data;
		778	}
		779
		780	db_get cache => "$id/data"
		781	}
		782
		783	=item cf::datalog type => key => value, ...
		784
		785	Log a datalog packet of the given type with the given key-value pairs.
		786
		787	=cut
		788
		789	sub datalog($@) {
		790	my ($type, %kv) = @_;
		791	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	792	}
331		793
332	=back	794	=back
333		795
334	=cut	796	=cut
335		797
336	#############################################################################	798	#############################################################################
337		799
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	800	=head2 ATTACHABLE OBJECTS
459		801
460	Many objects in crossfire are so-called attachable objects. That means you can	802	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	803	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	804	to it. All such attachable objects support the following methods.
463		805
464	In the following description, CLASS can be any of C<global>, C<object>	806	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	807	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	808	Deliantra).
467		809
468	=over 4	810	=over 4
469		811
470	=item $attachable->attach ($attachment, key => $value...)	812	=item $attachable->attach ($attachment, key => $value...)
471		813
…		…
515	=item cf::CLASS::attachment $name, ...	857	=item cf::CLASS::attachment $name, ...
516		858
517	Register an attachment by C<$name> through which attachable objects of the	859	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	860	given CLASS can refer to this attachment.
519		861
520	Some classes such as crossfire maps and objects can specify attachments	862	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	863	that are attached at load/instantiate time, thus the need for a name.
522		864
523	These calls expect any number of the following handler/hook descriptions:	865	These calls expect any number of the following handler/hook descriptions:
524		866
525	=over 4	867	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	927	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	928	our @CB_MAP = ();
587		929
588	my %attachment;	930	my %attachment;
589		931
		932	sub cf::attachable::thawer_merge {
		933	# simply override everything except _meta
		934	local $_[0]{_meta};
		935	%{$_[0]} = %{$_[1]};
		936	}
		937
590	sub _attach_cb($$$$) {	938	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	939	my ($registry, $event, $prio, $cb) = @_;
592		940
593	use sort 'stable';	941	use sort 'stable';
594		942
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	976	$registry = $CB_TYPE[$object_type] ||= [];
629		977
630	} elsif ($type eq "subtype") {	978	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	979	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	980	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	981	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		982
635	} elsif ($type eq "package") {	983	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	984	my $pkg = shift @arg;
637		985
638	while (my ($name, $id) = each %cb_id) {	986	while (my ($name, $id) = each %cb_id) {
…		…
643		991
644	} elsif (exists $cb_id{$type}) {	992	} elsif (exists $cb_id{$type}) {
645	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	993	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
646		994
647	} elsif (ref $type) {	995	} elsif (ref $type) {
648	warn "attaching objects not supported, ignoring.\n";	996	error "attaching objects not supported, ignoring.\n";
649		997
650	} else {	998	} else {
651	shift @arg;	999	shift @arg;
652	warn "attach argument '$type' not supported, ignoring.\n";	1000	error "attach argument '$type' not supported, ignoring.\n";
653	}	1001	}
654	}	1002	}
655	}	1003	}
656		1004
657	sub _object_attach {	1005	sub _object_attach {
…		…
667	_attach $registry, $klass, @attach;	1015	_attach $registry, $klass, @attach;
668	}	1016	}
669		1017
670	$obj->{$name} = \%arg;	1018	$obj->{$name} = \%arg;
671	} else {	1019	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	1020	info "object uses attachment '$name' which is not available, postponing.\n";
673	}	1021	}
674		1022
675	$obj->{_attachment}{$name} = undef;	1023	$obj->{_attachment}{$name} = undef;
676	}	1024	}
677		1025
…		…
679	if (ref $_[0]) {	1027	if (ref $_[0]) {
680	_object_attach @_;	1028	_object_attach @_;
681	} else {	1029	} else {
682	_attach shift->_attach_registry, @_;	1030	_attach shift->_attach_registry, @_;
683	}	1031	}
		1032	_recalc_want;
684	};	1033	};
685		1034
686	# all those should be optimised	1035	# all those should be optimised
687	sub cf::attachable::detach {	1036	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	1037	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1040	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1041	reattach ($obj);
693	} else {	1042	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1043	Carp::croak "cannot, currently, detach class attachments";
695	}	1044	}
		1045	_recalc_want;
696	};	1046	};
697		1047
698	sub cf::attachable::attached {	1048	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1049	my ($obj, $name) = @_;
700		1050
…		…
715	";	1065	";
716	die if $@;	1066	die if $@;
717	}	1067	}
718		1068
719	our $override;	1069	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1070	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1071
722	sub override {	1072	sub override {
723	$override = 1;	1073	$override = 1;
724	@invoke_results = ();	1074	@INVOKE_RESULTS = (@_);
725	}	1075	}
726		1076
727	sub do_invoke {	1077	sub do_invoke {
728	my $event = shift;	1078	my $event = shift;
729	my $callbacks = shift;	1079	my $callbacks = shift;
730		1080
731	@invoke_results = ();	1081	@INVOKE_RESULTS = ();
732		1082
733	local $override;	1083	local $override;
734		1084
735	for (@$callbacks) {	1085	for (@$callbacks) {
736	eval { &{$_->[1]} };	1086	eval { &{$_->[1]} };
737		1087
738	if ($@) {	1088	if ($@) {
739	warn "$@";
740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1089	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
741	override;	1090	override;
742	}	1091	}
743		1092
744	return 1 if $override;	1093	return 1 if $override;
745	}	1094	}
746		1095
747	0	1096	0
748	}	1097	}
749		1098
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1099	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1100
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1101	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1102
754	Generate an object-specific event with the given arguments.	1103	Generate an object-specific event with the given arguments.
755		1104
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1105	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1106	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1107	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1108
760	=back	1109	=back
761		1110
762	=cut	1111	=cut
763		1112
764	#############################################################################	1113	#############################################################################
765	# object support	1114	# object support
		1115
		1116	sub _object_equal($$);
		1117	sub _object_equal($$) {
		1118	my ($a, $b) = @_;
		1119
		1120	return 0 unless (ref $a) eq (ref $b);
		1121
		1122	if ("HASH" eq ref $a) {
		1123	my @ka = keys %$a;
		1124	my @kb = keys %$b;
		1125
		1126	return 0 if @ka != @kb;
		1127
		1128	for (0 .. $#ka) {
		1129	return 0 unless $ka[$_] eq $kb[$_];
		1130	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1131	}
		1132
		1133	} elsif ("ARRAY" eq ref $a) {
		1134
		1135	return 0 if @$a != @$b;
		1136
		1137	for (0 .. $#$a) {
		1138	return 0 unless _object_equal $a->[$_], $b->[$_];
		1139	}
		1140
		1141	} elsif ($a ne $b) {
		1142	return 0;
		1143	}
		1144
		1145	1
		1146	}
		1147
		1148	our $SLOW_MERGES;#d#
		1149	sub _can_merge {
		1150	my ($ob1, $ob2) = @_;
		1151
		1152	++$SLOW_MERGES;#d#
		1153
		1154	# we do the slow way here
		1155	return _object_equal $ob1, $ob2
		1156	}
766		1157
767	sub reattach {	1158	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1159	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1160	my ($obj) = @_;
		1161
		1162	# no longer needed after getting rid of delete_package?
		1163	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1164
771	my $registry = $obj->registry;	1165	my $registry = $obj->registry;
772		1166
773	@$registry = ();	1167	@$registry = ();
774		1168
…		…
779	for (@$attach) {	1173	for (@$attach) {
780	my ($klass, @attach) = @$_;	1174	my ($klass, @attach) = @$_;
781	_attach $registry, $klass, @attach;	1175	_attach $registry, $klass, @attach;
782	}	1176	}
783	} else {	1177	} else {
784	warn "object uses attachment '$name' that is not available, postponing.\n";	1178	info "object uses attachment '$name' that is not available, postponing.\n";
785	}	1179	}
786	}	1180	}
787	}	1181	}
788		1182
789	cf::attachable->attach (	1183	cf::attachable->attach (
790	prio => -1000000,	1184	prio => -1000000,
791	on_instantiate => sub {	1185	on_instantiate => sub {
792	my ($obj, $data) = @_;	1186	my ($obj, $data) = @_;
793		1187
794	$data = from_json $data;	1188	$data = decode_json $data;
795		1189
796	for (@$data) {	1190	for (@$data) {
797	my ($name, $args) = @$_;	1191	my ($name, $args) = @$_;
798		1192
799	$obj->attach ($name, %{$args || {} });	1193	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1209	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1210	my ($filename, $rdata, $objs) = @_;
817		1211
818	sync_job {	1212	sync_job {
819	if (length $$rdata) {	1213	if (length $$rdata) {
		1214	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1215	trace sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1216	$decname, length $$rdata, scalar @$objs
		1217	if $VERBOSE_IO;
822		1218
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1219	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1220	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1221	aio_write $fh, 0, (length $$rdata), $$rdata, 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;
826	aio_fsync $fh;	1224	aio_fsync $fh;
		1225	}
827	close $fh;	1226	aio_close $fh;
828		1227
829	if (@$objs) {	1228	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1229	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1230	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1231	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1232	aio_write $fh, 0, (length $data), $data, 0;
		1233	if ($cf::USE_FSYNC) {
		1234	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;
834	aio_fsync $fh;	1235	aio_fsync $fh;
		1236	}
835	close $fh;	1237	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1238	aio_rename "$filename.pst~", "$filename.pst";
837	}	1239	}
838	} else {	1240	} else {
839	aio_unlink "$filename.pst";	1241	aio_unlink "$filename.pst";
840	}	1242	}
841		1243
842	aio_rename "$filename~", $filename;	1244	aio_rename "$filename~", $filename;
		1245
		1246	$filename =~ s%/[^/]+$%%;
		1247	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1248	} else {
844	warn "FATAL: $filename~: $!\n";	1249	error "unable to save objects: $filename~: $!\n";
845	}	1250	}
846	} else {	1251	} else {
847	aio_unlink $filename;	1252	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1253	aio_unlink "$filename.pst";
849	}	1254	}
850	}	1255	};
851	}	1256	}
852		1257
853	sub object_freezer_as_string {	1258	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1259	my ($rdata, $objs) = @_;
855		1260
…		…
867	or return;	1272	or return;
868		1273
869	unless (aio_stat "$filename.pst") {	1274	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1275	(aio_load "$filename.pst", $av) >= 0
871	or return;	1276	or return;
		1277
872	$av = eval { (Storable::thaw $av)->{objs} };	1278	my $st = eval { Coro::Storable::thaw $av };
		1279	$av = $st->{objs};
873	}	1280	}
874		1281
		1282	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1283	trace sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1284	$decname, length $data, scalar @{$av || []}
		1285	if $VERBOSE_IO;
		1286
877	return ($data, $av);	1287	($data, $av)
878	}	1288	}
		1289
		1290	=head2 COMMAND CALLBACKS
		1291
		1292	=over 4
		1293
		1294	=cut
879		1295
880	#############################################################################	1296	#############################################################################
881	# command handling &c	1297	# command handling &c
882		1298
883	=item cf::register_command $name => \&callback($ob,$args);	1299	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1312	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1313	}
898		1314
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1315	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1316
901	Register a callbackf ro execution when the client sends an extcmd packet.	1317	Register a callback for execution when the client sends an (synchronous)
		1318	extcmd packet. Ext commands will be processed in the order they are
		1319	received by the server, like other user commands. The first argument is
		1320	the logged-in player. Ext commands can only be processed after a player
		1321	has logged in successfully.
902		1322
903	If the callback returns something, it is sent back as if reply was being	1323	If the callback returns something, it is sent back as if reply was being
904	called.	1324	called.
905		1325
		1326	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1327
		1328	Register a callback for execution when the client sends an (asynchronous)
		1329	exticmd packet. Exti commands are processed by the server as soon as they
		1330	are received, i.e. out of order w.r.t. other commands. The first argument
		1331	is a client socket. Exti commands can be received anytime, even before
		1332	log-in.
		1333
		1334	If the callback returns something, it is sent back as if reply was being
		1335	called.
		1336
906	=cut	1337	=cut
907		1338
908	sub register_extcmd {	1339	sub register_extcmd {
909	my ($name, $cb) = @_;	1340	my ($name, $cb) = @_;
910		1341
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1342	$EXTCMD{$name} = $cb;
915	}	1343	}
		1344
		1345	sub register_exticmd {
		1346	my ($name, $cb) = @_;
		1347
		1348	$EXTICMD{$name} = $cb;
		1349	}
		1350
		1351	use File::Glob ();
916		1352
917	cf::player->attach (	1353	cf::player->attach (
918	on_command => sub {	1354	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1355	my ($pl, $name, $params) = @_;
920		1356
921	my $cb = $COMMAND{$name}	1357	my $cb = $COMMAND{$name}
922	or return;	1358	or return;
923		1359
…		…
928	cf::override;	1364	cf::override;
929	},	1365	},
930	on_extcmd => sub {	1366	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1367	my ($pl, $buf) = @_;
932		1368
933	my $msg = eval { from_json $buf };	1369	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1370
935	if (ref $msg) {	1371	if (ref $msg) {
		1372	my ($type, $reply, @payload) =
		1373	"ARRAY" eq ref $msg
		1374	? @$msg
		1375	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1376
		1377	my @reply;
		1378
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1379	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1380	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1381	}
		1382
		1383	$pl->ext_reply ($reply, @reply)
		1384	if $reply;
		1385
941	} else {	1386	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1387	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1388	}
944		1389
945	cf::override;	1390	cf::override;
946	},	1391	},
947	);	1392	);
948		1393
949	sub register {	1394	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1395	sub cache_extensions {
956	my ($path) = @_;	1396	my $grp = IO::AIO::aio_group;
957		1397
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1398	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1399	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1400	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1401	}
1008	}	1402	};
1009		1403
1010	# remove extcmds	1404	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1405	}
1024		1406
1025	sub load_extensions {	1407	sub load_extensions {
		1408	info "loading extensions...";
		1409
		1410	cf::sync_job {
		1411	my %todo;
		1412
1026	for my $ext (<$LIBDIR/*.ext>) {	1413	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1414	next unless -r $path;
1028	eval {	1415
1029	load_extension $ext;	1416	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1417	my $base = $1;
		1418	my $pkg = $1;
		1419	$pkg =~ s/[^[:word:]]/_/g;
		1420	$pkg = "ext::$pkg";
		1421
		1422	open my $fh, "<:utf8", $path
		1423	or die "$path: $!";
		1424
		1425	my $source = do { local $/; <$fh> };
		1426
		1427	my %ext = (
		1428	path => $path,
		1429	base => $base,
		1430	pkg => $pkg,
		1431	);
		1432
		1433	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1434	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1435
		1436	$ext{source} =
		1437	"package $pkg; use common::sense;\n"
		1438	. "#line 1 \"$path\"\n{\n"
		1439	. $source
		1440	. "\n};\n1";
		1441
		1442	$todo{$base} = \%ext;
		1443	}
		1444
		1445	my $pass = 0;
		1446	my %done;
		1447	while (%todo) {
		1448	my $progress;
		1449
		1450	++$pass;
		1451
		1452	ext:
		1453	while (my ($k, $v) = each %todo) {
		1454	for (split /,\s*/, $v->{meta}{depends}) {
		1455	next ext
		1456	unless exists $done{$_};
		1457	}
		1458
		1459	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1460
		1461	my $active = eval $v->{source};
		1462
		1463	if (length $@) {
		1464	error "$v->{path}: $@\n";
		1465
		1466	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1467	if exists $v->{meta}{mandatory};
		1468
		1469	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1470	delete $todo{$k};
		1471	} else {
		1472	$done{$k} = delete $todo{$k};
		1473	push @EXTS, $v->{pkg};
		1474	$progress = 1;
		1475
		1476	info "$v->{base}: extension inactive.\n"
		1477	unless $active;
		1478	}
1030	1	1479	}
1031	} or warn "$ext not loaded: $@";	1480
		1481	unless ($progress) {
		1482	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1483
		1484	while (my ($k, $v) = each %todo) {
		1485	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1486	if exists $v->{meta}{mandatory};
		1487	}
		1488	}
		1489	}
1032	}	1490	};
1033	}	1491	}
1034		1492
1035	#############################################################################	1493	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1494
1038	*cf::mapsupport::on_clean = sub {	1495	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1496
1073	=head2 CORE EXTENSIONS	1497	=head2 CORE EXTENSIONS
1074		1498
1075	Functions and methods that extend core crossfire objects.	1499	Functions and methods that extend core deliantra objects.
1076		1500
1077	=cut	1501	=cut
1078		1502
1079	package cf::player;	1503	package cf::player;
1080		1504
		1505	use Coro::AIO;
		1506
1081	=head3 cf::player	1507	=head3 cf::player
1082		1508
1083	=over 4	1509	=over 4
1084		1510
		1511	=item cf::player::num_playing
		1512
		1513	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1514
		1515	=cut
		1516
		1517	sub num_playing {
		1518	scalar grep
		1519	$_->ob->map
		1520	&& !$_->hidden
		1521	&& !$_->ob->flag (cf::FLAG_WIZ),
		1522	cf::player::list
		1523	}
		1524
1085	=item cf::player::find $login	1525	=item cf::player::find $login
1086		1526
1087	Returns the given player object, loading it if necessary (might block).	1527	Returns the given player object, loading it if necessary (might block).
1088		1528
1089	=cut	1529	=cut
1090		1530
1091	sub playerdir($) {	1531	sub playerdir($) {
1092	cf::localdir	1532	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1533	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1534	}
1098		1535
1099	sub path($) {	1536	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1537	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1538
1102	(playerdir $login) . "/$login.pl"	1539	(playerdir $login) . "/playerdata"
1103	}	1540	}
1104		1541
1105	sub find_active($) {	1542	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1543	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1544	and $cf::PLAYER{$_[0]}->active
…		…
1110		1547
1111	sub exists($) {	1548	sub exists($) {
1112	my ($login) = @_;	1549	my ($login) = @_;
1113		1550
1114	$cf::PLAYER{$login}	1551	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1552	or !aio_stat path $login
1116	}	1553	}
1117		1554
1118	sub find($) {	1555	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1556	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1557	my $login = $_[0];
1121		1558
1122	my $guard = cf::lock_acquire "user_find:$login";	1559	my $guard = cf::lock_acquire "user_find:$login";
1123		1560
1124	$cf::PLAYER{$_[0]} || do {	1561	$cf::PLAYER{$_[0]} || do {
1125	my $pl = load_pl path $login	1562	# rename old playerfiles to new ones
		1563	#TODO: remove when no longer required
		1564	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1565	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1566	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1567	aio_unlink +(playerdir $login) . "/$login.pl";
		1568
		1569	my $f = new_from_file cf::object::thawer path $login
1126	or return;	1570	or return;
		1571
		1572	my $pl = cf::player::load_pl $f
		1573	or return;
		1574
		1575	local $cf::PLAYER_LOADING{$login} = $pl;
		1576	$f->resolve_delayed_derefs;
1127	$cf::PLAYER{$login} = $pl	1577	$cf::PLAYER{$login} = $pl
1128	}	1578	}
1129	}	1579	}
1130	}	1580	}
		1581
		1582	cf::player->attach (
		1583	on_load => sub {
		1584	my ($pl, $path) = @_;
		1585
		1586	# restore slots saved in save, below
		1587	my $slots = delete $pl->{_slots};
		1588
		1589	$pl->ob->current_weapon ($slots->[0]);
		1590	$pl->combat_ob ($slots->[1]);
		1591	$pl->ranged_ob ($slots->[2]);
		1592	},
		1593	);
1131		1594
1132	sub save($) {	1595	sub save($) {
1133	my ($pl) = @_;	1596	my ($pl) = @_;
1134		1597
1135	return if $pl->{deny_save};	1598	return if $pl->{deny_save};
…		…
1137	my $path = path $pl;	1600	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1601	my $guard = cf::lock_acquire "user_save:$path";
1139		1602
1140	return if $pl->{deny_save};	1603	return if $pl->{deny_save};
1141		1604
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1605	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1606	$pl->{last_save} = $cf::RUNTIME;
1144		1607
		1608	cf::get_slot 0.01;
		1609
		1610	# save slots, to be restored later
		1611	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1612
1145	$pl->save_pl ($path);	1613	$pl->save_pl ($path);
1146	Coro::cede;	1614	cf::cede_to_tick;
1147	}	1615	}
1148		1616
1149	sub new($) {	1617	sub new($) {
1150	my ($login) = @_;	1618	my ($login) = @_;
1151		1619
…		…
1157	$cf::PLAYER{$login} = $self;	1625	$cf::PLAYER{$login} = $self;
1158		1626
1159	$self	1627	$self
1160	}	1628	}
1161		1629
		1630	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1631
		1632	=cut
		1633
		1634	sub send_msg {
		1635	my $ns = shift->ns
		1636	or return;
		1637	$ns->send_msg (@_);
		1638	}
		1639
		1640	=item $pl->quit_character
		1641
		1642	Nukes the player without looking back. If logged in, the connection will
		1643	be destroyed. May block for a long time.
		1644
		1645	=cut
		1646
1162	sub quit_character {	1647	sub quit_character {
1163	my ($pl) = @_;	1648	my ($pl) = @_;
1164		1649
		1650	my $name = $pl->ob->name;
		1651
1165	$pl->{deny_save} = 1;	1652	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1653	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1167		1654
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1655	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1169	$pl->deactivate;	1656	$pl->deactivate;
		1657
		1658	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1659	ext::highscore::check ($pl->ob);
		1660
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1661	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1171	$pl->ns->destroy if $pl->ns;	1662	$pl->ns->destroy if $pl->ns;
1172		1663
1173	my $path = playerdir $pl;	1664	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1665	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1666	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1667	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	1668	$pl->destroy;
		1669
		1670	my $prefix = qr<^~\Q$name\E/>;
		1671
		1672	# nuke player maps
		1673	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1674
1178	IO::AIO::aio_rmtree $temp;	1675	IO::AIO::aio_rmtree $temp;
1179	}	1676	}
1180		1677
		1678	=item $pl->kick
		1679
		1680	Kicks a player out of the game. This destroys the connection.
		1681
		1682	=cut
		1683
		1684	sub kick {
		1685	my ($pl, $kicker) = @_;
		1686
		1687	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1688	$pl->killer ("kicked");
		1689	$pl->ns->destroy;
		1690	}
		1691
		1692	=item cf::player::list_logins
		1693
		1694	Returns am arrayref of all valid playernames in the system, can take a
		1695	while and may block, so not sync_job-capable, ever.
		1696
		1697	=cut
		1698
		1699	sub list_logins {
		1700	my $dirs = aio_readdir $PLAYERDIR
		1701	or return [];
		1702
		1703	my @logins;
		1704
		1705	for my $login (@$dirs) {
		1706	my $path = path $login;
		1707
		1708	# a .pst is a dead give-away for a valid player
		1709	# if no pst file found, open and chekc for blocked users
		1710	if (aio_stat "$path.pst") {
		1711	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1712	aio_read $fh, 0, 512, my $buf, 0 or next;
		1713	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1714	}
		1715
		1716	utf8::decode $login;
		1717	push @logins, $login;
		1718	}
		1719
		1720	\@logins
		1721	}
		1722
		1723	=item $player->maps
		1724
		1725	=item cf::player::maps $login
		1726
		1727	Returns an arrayref of map paths that are private for this
		1728	player. May block.
		1729
		1730	=cut
		1731
		1732	sub maps($) {
		1733	my ($pl) = @_;
		1734
		1735	$pl = ref $pl ? $pl->ob->name : $pl;
		1736
		1737	my $files = aio_readdir playerdir $pl
		1738	or return;
		1739
		1740	my @paths;
		1741
		1742	for (@$files) {
		1743	utf8::decode $_;
		1744	next if /\.(?:pl|pst)$/;
		1745	next unless /^$PATH_SEP/o;
		1746
		1747	push @paths, cf::map::normalise "~$pl/$_";
		1748	}
		1749
		1750	\@paths
		1751	}
		1752
		1753	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1754
		1755	Expand deliantra pod fragments into protocol xml.
		1756
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1757	=item $player->ext_reply ($msgid, @msg)
1182		1758
1183	Sends an ext reply to the player.	1759	Sends an ext reply to the player.
1184		1760
1185	=cut	1761	=cut
1186		1762
1187	sub ext_reply($$$%) {	1763	sub ext_reply($$@) {
1188	my ($self, $id, %msg) = @_;	1764	my ($self, $id, @msg) = @_;
1189		1765
1190	$msg{msgid} = $id;	1766	$self->ns->ext_reply ($id, @msg)
1191
1192	$self->send ("ext " . cf::to_json \%msg);
1193	}	1767	}
1194		1768
1195	package cf;	1769	=item $player->ext_msg ($type, @msg)
		1770
		1771	Sends an ext event to the client.
		1772
		1773	=cut
		1774
		1775	sub ext_msg($$@) {
		1776	my ($self, $type, @msg) = @_;
		1777
		1778	$self->ns->ext_msg ($type, @msg);
		1779	}
		1780
		1781	=head3 cf::region
		1782
		1783	=over 4
		1784
		1785	=cut
		1786
		1787	package cf::region;
		1788
		1789	=item cf::region::find_by_path $path
		1790
		1791	Tries to decuce the likely region for a map knowing only its path.
		1792
		1793	=cut
		1794
		1795	sub find_by_path($) {
		1796	my ($path) = @_;
		1797
		1798	$path =~ s/^~[^\/]*//; # skip ~login
		1799
		1800	my ($match, $specificity);
		1801
		1802	for my $region (list) {
		1803	if ($region->{match} && $path =~ $region->{match}) {
		1804	($match, $specificity) = ($region, $region->specificity)
		1805	if $region->specificity > $specificity;
		1806	}
		1807	}
		1808
		1809	$match
		1810	}
1196		1811
1197	=back	1812	=back
1198
1199		1813
1200	=head3 cf::map	1814	=head3 cf::map
1201		1815
1202	=over 4	1816	=over 4
1203		1817
…		…
1206	package cf::map;	1820	package cf::map;
1207		1821
1208	use Fcntl;	1822	use Fcntl;
1209	use Coro::AIO;	1823	use Coro::AIO;
1210		1824
		1825	use overload
		1826	'""' => \&as_string,
		1827	fallback => 1;
		1828
1211	our $MAX_RESET = 3600;	1829	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	1830	our $DEFAULT_RESET = 3000;
1213		1831
1214	sub generate_random_map {	1832	sub generate_random_map {
1215	my ($path, $rmp) = @_;	1833	my ($self, $rmp) = @_;
		1834
		1835	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1216		1836
1217	# mit "rum" bekleckern, nicht	1837	# mit "rum" bekleckern, nicht
1218	cf::map::_create_random_map	1838	$self->_create_random_map (
1219	$path,
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1839	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1840	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1841	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},	1842	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},	1843	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1844	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1845	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1846	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1847	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1848	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})	1849	(cf::region::find $rmp->{region}), $rmp->{custom}
		1850	)
1231	}	1851	}
1232		1852
1233	# and all this just because we cannot iterate over	1853	=item cf::map->register ($regex, $prio)
1234	# all maps in C++...
1235	sub change_all_map_light {
1236	my ($change) = @_;
1237		1854
1238	$_->change_map_light ($change)	1855	Register a handler for the map path matching the given regex at the
1239	for grep $_->outdoor, values %cf::MAP;	1856	givne priority (higher is better, built-in handlers have priority 0, the
1240	}	1857	default).
1241		1858
1242	sub try_load_header($) {	1859	=cut
		1860
		1861	sub register {
		1862	my (undef, $regex, $prio) = @_;
		1863	my $pkg = caller;
		1864
		1865	push @{"$pkg\::ISA"}, __PACKAGE__;
		1866
		1867	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1868	}
		1869
		1870	# also paths starting with '/'
		1871	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1872
		1873	sub thawer_merge {
		1874	my ($self, $merge) = @_;
		1875
		1876	# we have to keep some variables in memory intact
		1877	local $self->{path};
		1878	local $self->{load_path};
		1879
		1880	$self->SUPER::thawer_merge ($merge);
		1881	}
		1882
		1883	sub normalise {
1243	my ($path) = @_;	1884	my ($path, $base) = @_;
		1885
		1886	$path = "$path"; # make sure it's a string
		1887
		1888	$path =~ s/\.map$//;
		1889
		1890	# map plan:
		1891	#
		1892	# /! non-realised random map exit (special hack!)
		1893	# {... are special paths that are not being touched
		1894	# ?xxx/... are special absolute paths
		1895	# ?random/... random maps
		1896	# /... normal maps
		1897	# ~user/... per-player map of a specific user
		1898
		1899	$path =~ s/$PATH_SEP/\//go;
		1900
		1901	# treat it as relative path if it starts with
		1902	# something that looks reasonable
		1903	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1904	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1905
		1906	$base =~ s{[^/]+/?$}{};
		1907	$path = "$base/$path";
		1908	}
		1909
		1910	for ($path) {
		1911	redo if s{//}{/};
		1912	redo if s{/\.?/}{/};
		1913	redo if s{/[^/]+/\.\./}{/};
		1914	}
		1915
		1916	$path
		1917	}
		1918
		1919	sub new_from_path {
		1920	my (undef, $path, $base) = @_;
		1921
		1922	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1923
		1924	$path = normalise $path, $base;
		1925
		1926	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1927	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1928	my $self = bless cf::map::new, $pkg;
		1929	$self->{path} = $path; $self->path ($path);
		1930	$self->init; # pass $1 etc.
		1931	return $self;
		1932	}
		1933	}
		1934
		1935	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1936	()
		1937	}
		1938
		1939	sub init {
		1940	my ($self) = @_;
		1941
		1942	$self
		1943	}
		1944
		1945	sub as_string {
		1946	my ($self) = @_;
		1947
		1948	"$self->{path}"
		1949	}
		1950
		1951	# the displayed name, this is a one way mapping
		1952	sub visible_name {
		1953	&as_string
		1954	}
		1955
		1956	# the original (read-only) location
		1957	sub load_path {
		1958	my ($self) = @_;
		1959
		1960	"$MAPDIR/$self->{path}.map"
		1961	}
		1962
		1963	# the temporary/swap location
		1964	sub save_path {
		1965	my ($self) = @_;
		1966
		1967	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1968	"$TMPDIR/$path.map"
		1969	}
		1970
		1971	# the unique path, undef == no special unique path
		1972	sub uniq_path {
		1973	my ($self) = @_;
		1974
		1975	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1976	"$UNIQUEDIR/$path"
		1977	}
		1978
		1979	sub decay_objects {
		1980	my ($self) = @_;
		1981
		1982	return if $self->{deny_reset};
		1983
		1984	$self->do_decay_objects;
		1985	}
		1986
		1987	sub unlink_save {
		1988	my ($self) = @_;
		1989
		1990	utf8::encode (my $save = $self->save_path);
		1991	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1992	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1993	}
		1994
		1995	sub load_header_from($) {
		1996	my ($self, $path) = @_;
1244		1997
1245	utf8::encode $path;	1998	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	1999	my $f = new_from_file cf::object::thawer $path
1247	or return;	2000	or return;
1248		2001
1249	my $map = cf::map::new	2002	$self->_load_header ($f)
1250	or return;	2003	or return;
1251		2004
1252	# for better error messages only, will be overwritten	2005	local $MAP_LOADING{$self->{path}} = $self;
1253	$map->path ($path);	2006	$f->resolve_delayed_derefs;
1254		2007
1255	$map->load_header ($path)	2008	$self->{load_path} = $path;
		2009
		2010	1
		2011	}
		2012
		2013	sub load_header_orig {
		2014	my ($self) = @_;
		2015
		2016	$self->load_header_from ($self->load_path)
		2017	}
		2018
		2019	sub load_header_temp {
		2020	my ($self) = @_;
		2021
		2022	$self->load_header_from ($self->save_path)
		2023	}
		2024
		2025	sub prepare_temp {
		2026	my ($self) = @_;
		2027
		2028	$self->last_access ((delete $self->{last_access})
		2029	|| $cf::RUNTIME); #d#
		2030	# safety
		2031	$self->{instantiate_time} = $cf::RUNTIME
		2032	if $self->{instantiate_time} > $cf::RUNTIME;
		2033	}
		2034
		2035	sub prepare_orig {
		2036	my ($self) = @_;
		2037
		2038	$self->{load_original} = 1;
		2039	$self->{instantiate_time} = $cf::RUNTIME;
		2040	$self->last_access ($cf::RUNTIME);
		2041	$self->instantiate;
		2042	}
		2043
		2044	sub load_header {
		2045	my ($self) = @_;
		2046
		2047	if ($self->load_header_temp) {
		2048	$self->prepare_temp;
		2049	} else {
		2050	$self->load_header_orig
1256	or return;	2051	or return;
		2052	$self->prepare_orig;
		2053	}
1257		2054
1258	$map->{load_path} = $path;	2055	$self->{deny_reset} = 1
		2056	if $self->no_reset;
1259		2057
1260	$map	2058	$self->default_region (cf::region::find_by_path $self->{path})
		2059	unless $self->default_region;
		2060
		2061	1
1261	}	2062	}
1262		2063
1263	sub find;	2064	sub find;
1264	sub find {	2065	sub find {
1265	my ($path, $origin) = @_;	2066	my ($path, $origin) = @_;
1266		2067
1267	#warn "find<$path,$origin>\n";#d#	2068	cf::cede_to_tick;
1268		2069
1269	$path = new cf::path $path, $origin && $origin->path;	2070	$path = normalise $path, $origin && $origin->path;
1270	my $key = $path->as_string;
1271		2071
1272	cf::lock_wait "map_find:$key";	2072	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1273
1274	$cf::MAP{$key} || do {
1275	my $guard = cf::lock_acquire "map_find:$key";	2073	my $guard2 = cf::lock_acquire "map_find:$path";
1276		2074
1277	# do it the slow way	2075	$cf::MAP{$path} || do {
1278	my $map = try_load_header $path->save_path;	2076	my $map = new_from_path cf::map $path
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	2077	or return;
1296		2078
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	2079	$map->{last_save} = $cf::RUNTIME;
1309		2080
1310	Coro::cede;	2081	$map->load_header
		2082	or return;
1311		2083
1312	if ($map->should_reset) {	2084	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2085	# doing this can freeze the server in a sync job, obviously
		2086	#$cf::WAIT_FOR_TICK->wait;
		2087	undef $guard2;
		2088	undef $guard1;
1313	$map->reset;	2089	$map->reset;
1314	undef $guard;
1315	$map = find $path	2090	return find $path;
1316	or return;
1317	}	2091	}
1318		2092
1319	$cf::MAP{$key} = $map	2093	$cf::MAP{$path} = $map
1320	}	2094	}
1321	}	2095	}
		2096
		2097	sub pre_load { }
		2098	#sub post_load { } # XS
1322		2099
1323	sub load {	2100	sub load {
1324	my ($self) = @_;	2101	my ($self) = @_;
1325		2102
		2103	local $self->{deny_reset} = 1; # loading can take a long time
		2104
1326	my $path = $self->{path};	2105	my $path = $self->{path};
		2106
		2107	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2108	my $guard = cf::lock_acquire "map_data:$path";
1328		2109
		2110	return unless $self->valid;
1329	return if $self->in_memory != cf::MAP_SWAPPED;	2111	return unless $self->in_memory == cf::MAP_SWAPPED;
1330		2112
1331	$self->in_memory (cf::MAP_LOADING);	2113	$self->in_memory (cf::MAP_LOADING);
1332		2114
1333	$self->alloc;	2115	$self->alloc;
1334	$self->load_objects ($self->{load_path}, 1)	2116
		2117	$self->pre_load;
		2118	cf::cede_to_tick;
		2119
		2120	my $f = new_from_file cf::object::thawer $self->{load_path};
		2121	$f->skip_block;
		2122	$self->_load_objects ($f)
1335	or return;	2123	or return;
1336		2124
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2125	$self->post_load_original
1338	if delete $self->{load_original};	2126	if delete $self->{load_original};
1339		2127
1340	if (my $uniq = $path->uniq_path) {	2128	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	2129	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	2130	unless (aio_stat $uniq) {
		2131	if (my $f = new_from_file cf::object::thawer $uniq) {
1343	$self->clear_unique_items;	2132	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	2133	$self->_load_objects ($f);
		2134	$f->resolve_delayed_derefs;
		2135	}
1345	}	2136	}
1346	}	2137	}
1347		2138
1348	Coro::cede;	2139	$f->resolve_delayed_derefs;
1349		2140
		2141	cf::cede_to_tick;
1350	# now do the right thing for maps	2142	# now do the right thing for maps
1351	$self->link_multipart_objects;	2143	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	2144	$self->difficulty ($self->estimate_difficulty)
1362	unless $self->difficulty;	2145	unless $self->difficulty;
		2146	cf::cede_to_tick;
		2147
		2148	unless ($self->{deny_activate}) {
		2149	$self->decay_objects;
		2150	$self->fix_auto_apply;
		2151	$self->update_buttons;
		2152	cf::cede_to_tick;
1363	$self->activate;	2153	$self->activate;
1364	}	2154	}
1365		2155
1366	Coro::cede;	2156	$self->{last_save} = $cf::RUNTIME;
		2157	$self->last_access ($cf::RUNTIME);
1367		2158
1368	$self->in_memory (cf::MAP_IN_MEMORY);	2159	$self->in_memory (cf::MAP_ACTIVE);
		2160	}
		2161
		2162	$self->post_load;
		2163	}
		2164
		2165	# customize the map for a given player, i.e.
		2166	# return the _real_ map. used by e.g. per-player
		2167	# maps to change the path to ~playername/mappath
		2168	sub customise_for {
		2169	my ($self, $ob) = @_;
		2170
		2171	return find "~" . $ob->name . "/" . $self->{path}
		2172	if $self->per_player;
		2173
		2174	# return find "?party/" . $ob->name . "/" . $self->{path}
		2175	# if $self->per_party;
		2176
		2177	$self
		2178	}
		2179
		2180	# find and load all maps in the 3x3 area around a map
		2181	sub load_neighbours {
		2182	my ($map) = @_;
		2183
		2184	my @neigh; # diagonal neighbours
		2185
		2186	for (0 .. 3) {
		2187	my $neigh = $map->tile_path ($_)
		2188	or next;
		2189	$neigh = find $neigh, $map
		2190	or next;
		2191	$neigh->load;
		2192
		2193	# now find the diagonal neighbours
		2194	push @neigh,
		2195	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2196	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2197	}
		2198
		2199	for (grep defined $_->[0], @neigh) {
		2200	my ($path, $origin) = @$_;
		2201	my $neigh = find $path, $origin
		2202	or next;
		2203	$neigh->load;
		2204	}
1369	}	2205	}
1370		2206
1371	sub find_sync {	2207	sub find_sync {
1372	my ($path, $origin) = @_;	2208	my ($path, $origin) = @_;
1373		2209
1374	cf::sync_job { cf::map::find $path, $origin }	2210	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2211	if $Coro::current == $Coro::main;
		2212
		2213	find $path, $origin
1375	}	2214	}
1376		2215
1377	sub do_load_sync {	2216	sub do_load_sync {
1378	my ($map) = @_;	2217	my ($map) = @_;
1379		2218
1380	cf::sync_job { $map->load };	2219	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2220	if $Coro::current == $Coro::main;
		2221
		2222	$map->load;
		2223	}
		2224
		2225	our %MAP_PREFETCH;
		2226	our $MAP_PREFETCHER = undef;
		2227
		2228	sub find_async {
		2229	my ($path, $origin, $load) = @_;
		2230
		2231	$path = normalise $path, $origin && $origin->{path};
		2232
		2233	if (my $map = $cf::MAP{$path}) {
		2234	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2235	}
		2236
		2237	$MAP_PREFETCH{$path} |= $load;
		2238
		2239	$MAP_PREFETCHER ||= cf::async {
		2240	$Coro::current->{desc} = "map prefetcher";
		2241
		2242	while (%MAP_PREFETCH) {
		2243	while (my ($k, $v) = each %MAP_PREFETCH) {
		2244	if (my $map = find $k) {
		2245	$map->load if $v;
		2246	}
		2247
		2248	delete $MAP_PREFETCH{$k};
		2249	}
		2250	}
		2251	undef $MAP_PREFETCHER;
		2252	};
		2253	$MAP_PREFETCHER->prio (6);
		2254
		2255	()
		2256	}
		2257
		2258	# common code, used by both ->save and ->swapout
		2259	sub _save {
		2260	my ($self) = @_;
		2261
		2262	$self->{last_save} = $cf::RUNTIME;
		2263
		2264	return unless $self->dirty;
		2265
		2266	my $save = $self->save_path; utf8::encode $save;
		2267	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2268
		2269	$self->{load_path} = $save;
		2270
		2271	return if $self->{deny_save};
		2272
		2273	local $self->{last_access} = $self->last_access;#d#
		2274
		2275	cf::async {
		2276	$Coro::current->{desc} = "map player save";
		2277	$_->contr->save for $self->players;
		2278	};
		2279
		2280	cf::get_slot 0.02;
		2281
		2282	if ($uniq) {
		2283	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2284	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2285	} else {
		2286	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2287	}
1381	}	2288	}
1382		2289
1383	sub save {	2290	sub save {
1384	my ($self) = @_;	2291	my ($self) = @_;
1385		2292
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	2293	my $lock = cf::lock_acquire "map_data:$self->{path}";
1387		2294
1388	$self->{last_save} = $cf::RUNTIME;	2295	$self->_save;
1389
1390	return unless $self->dirty;
1391
1392	my $save = $self->{path}->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1394
1395	$self->{load_path} = $save;
1396
1397	return if $self->{deny_save};
1398
1399	local $self->{last_access} = $self->last_access;#d#
1400
1401	cf::async {
1402	$_->contr->save for $self->players;
1403	};
1404
1405	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}
1411	}	2296	}
1412		2297
1413	sub swap_out {	2298	sub swap_out {
1414	my ($self) = @_;	2299	my ($self) = @_;
1415		2300
1416	# save first because save cedes
1417	$self->save;
1418
1419	my $lock = cf::lock_acquire "map_data:" . $self->path;	2301	my $lock = cf::lock_acquire "map_data:$self->{path}";
1420		2302
		2303	return if $self->in_memory != cf::MAP_ACTIVE;
		2304	return if $self->{deny_save};
1421	return if $self->players;	2305	return if $self->players;
1422	return if $self->in_memory != cf::MAP_IN_MEMORY;
1423	return if $self->{deny_save};
1424		2306
		2307	# first deactivate the map and "unlink" it from the core
		2308	$self->deactivate;
		2309	$_->clear_links_to ($self) for values %cf::MAP;
		2310	$self->in_memory (cf::MAP_SWAPPED);
		2311
		2312	# then atomically save
		2313	$self->_save;
		2314
		2315	# then free the map
1425	$self->clear;	2316	$self->clear;
1426	$self->in_memory (cf::MAP_SWAPPED);
1427	}	2317	}
1428		2318
1429	sub reset_at {	2319	sub reset_at {
1430	my ($self) = @_;	2320	my ($self) = @_;
1431		2321
1432	# TODO: safety, remove and allow resettable per-player maps	2322	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	2323	return 1e99 if $self->{deny_reset};
1435		2324
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2325	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2326	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		2327
…		…
1443	my ($self) = @_;	2332	my ($self) = @_;
1444		2333
1445	$self->reset_at <= $cf::RUNTIME	2334	$self->reset_at <= $cf::RUNTIME
1446	}	2335	}
1447		2336
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	2337	sub reset {
1470	my ($self) = @_;	2338	my ($self) = @_;
1471		2339
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	2340	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		2341
1474	return if $self->players;	2342	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		2343
1477	warn "resetting map ", $self->path;#d#	2344	cf::trace "resetting map ", $self->path, "\n";
		2345
		2346	$self->in_memory (cf::MAP_SWAPPED);
		2347
		2348	# need to save uniques path
		2349	unless ($self->{deny_save}) {
		2350	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2351
		2352	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2353	if $uniq;
		2354	}
1478		2355
1479	delete $cf::MAP{$self->path};	2356	delete $cf::MAP{$self->path};
1480		2357
		2358	$self->deactivate;
1481	$_->clear_links_to ($self) for values %cf::MAP;	2359	$_->clear_links_to ($self) for values %cf::MAP;
		2360	$self->clear;
1482		2361
1483	$self->unlink_save;	2362	$self->unlink_save;
1484	$self->destroy;	2363	$self->destroy;
1485	}	2364	}
1486		2365
1487	my $nuke_counter = "aaaa";	2366	my $nuke_counter = "aaaa";
1488		2367
1489	sub nuke {	2368	sub nuke {
1490	my ($self) = @_;	2369	my ($self) = @_;
1491		2370
		2371	{
		2372	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2373
		2374	delete $cf::MAP{$self->path};
		2375
		2376	$self->unlink_save;
		2377
		2378	bless $self, "cf::map::wrap";
		2379	delete $self->{deny_reset};
1492	$self->{deny_save} = 1;	2380	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	2381	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	2382	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2383
		2384	$cf::MAP{$self->path} = $self;
		2385	}
		2386
1495	$self->reset; # polite request, might not happen	2387	$self->reset; # polite request, might not happen
1496	}	2388	}
1497		2389
1498	sub customise_for {	2390	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		2391
1501	if ($map->per_player) {	2392	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2393	maps. May block.
		2394
		2395	=cut
		2396
		2397	sub tmp_maps() {
1503	}	2398	[
1504		2399	map {
1505	$map	2400	utf8::decode $_;
		2401	/\.map$/
		2402	? normalise $_
		2403	: ()
		2404	} @{ aio_readdir $TMPDIR or [] }
		2405	]
1506	}	2406	}
1507		2407
1508	sub emergency_save {	2408	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		2409
1511	warn "enter emergency perl save\n";	2410	Returns an arrayref with all map paths of currently instantiated and saved
		2411	random maps. May block.
1512		2412
1513	cf::sync_job {	2413	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		2414
1518	warn "begin emergency map save\n";	2415	sub random_maps() {
1519	$_->save for values %cf::MAP;	2416	[
1520	warn "end emergency map save\n";	2417	map {
		2418	utf8::decode $_;
		2419	/\.map$/
		2420	? normalise "?random/$_"
		2421	: ()
		2422	} @{ aio_readdir $RANDOMDIR or [] }
		2423	]
		2424	}
		2425
		2426	=item cf::map::unique_maps
		2427
		2428	Returns an arrayref of paths of all shared maps that have
		2429	instantiated unique items. May block.
		2430
		2431	=cut
		2432
		2433	sub unique_maps() {
		2434	[
		2435	map {
		2436	utf8::decode $_;
		2437	s/\.map$//; # TODO future compatibility hack
		2438	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2439	? ()
		2440	: normalise $_
		2441	} @{ aio_readdir $UNIQUEDIR or [] }
		2442	]
		2443	}
		2444
		2445	=item cf::map::static_maps
		2446
		2447	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2448	file in the shared directory excluding F</styles> and F</editor>). May
		2449	block.
		2450
		2451	=cut
		2452
		2453	sub static_maps() {
		2454	my @dirs = "";
		2455	my @maps;
		2456
		2457	while (@dirs) {
		2458	my $dir = shift @dirs;
		2459
		2460	next if $dir eq "/styles" || $dir eq "/editor";
		2461
		2462	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2463	or return;
		2464
		2465	for (@$files) {
		2466	s/\.map$// or next;
		2467	utf8::decode $_;
		2468	push @maps, "$dir/$_";
		2469	}
		2470
		2471	push @dirs, map "$dir/$_", @$dirs;
1521	};	2472	}
1522		2473
1523	warn "leave emergency perl save\n";	2474	\@maps
		2475	}
		2476
		2477	=back
		2478
		2479	=head3 cf::object
		2480
		2481	=cut
		2482
		2483	package cf::object;
		2484
		2485	=over 4
		2486
		2487	=item $ob->inv_recursive
		2488
		2489	Returns the inventory of the object I<and> their inventories, recursively,
		2490	but I<not> the object itself.
		2491
		2492	=cut
		2493
		2494	sub inv_recursive_;
		2495	sub inv_recursive_ {
		2496	map { $_, inv_recursive_ $_->inv } @_
		2497	}
		2498
		2499	sub inv_recursive {
		2500	inv_recursive_ inv $_[0]
		2501	}
		2502
		2503	=item $ref = $ob->ref
		2504
		2505	Creates and returns a persistent reference to an object that can be stored as a string.
		2506
		2507	=item $ob = cf::object::deref ($refstring)
		2508
		2509	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2510	even if the object actually exists. May block.
		2511
		2512	=cut
		2513
		2514	sub deref {
		2515	my ($ref) = @_;
		2516
		2517	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2518	my ($uuid, $name) = ($1, $2);
		2519	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2520	or return;
		2521	$pl->ob->uuid eq $uuid
		2522	or return;
		2523
		2524	$pl->ob
		2525	} else {
		2526	warn "$ref: cannot resolve object reference\n";
		2527	undef
		2528	}
1524	}	2529	}
1525		2530
1526	package cf;	2531	package cf;
1527		2532
1528	=back	2533	=back
1529
1530		2534
1531	=head3 cf::object::player	2535	=head3 cf::object::player
1532		2536
1533	=over 4	2537	=over 4
1534		2538
…		…
1537	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2541	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1538	can be C<undef>. Does the right thing when the player is currently in a	2542	can be C<undef>. Does the right thing when the player is currently in a
1539	dialogue with the given NPC character.	2543	dialogue with the given NPC character.
1540		2544
1541	=cut	2545	=cut
		2546
		2547	our $SAY_CHANNEL = {
		2548	id => "say",
		2549	title => "Map",
		2550	reply => "say ",
		2551	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2552	};
		2553
		2554	our $CHAT_CHANNEL = {
		2555	id => "chat",
		2556	title => "Chat",
		2557	reply => "chat ",
		2558	tooltip => "Player chat and shouts, global to the server.",
		2559	};
1542		2560
1543	# rough implementation of a future "reply" method that works	2561	# rough implementation of a future "reply" method that works
1544	# with dialog boxes.	2562	# with dialog boxes.
1545	#TODO: the first argument must go, split into a $npc->reply_to ( method	2563	#TODO: the first argument must go, split into a $npc->reply_to ( method
1546	sub cf::object::player::reply($$$;$) {	2564	sub cf::object::player::reply($$$;$) {
…		…
1548		2566
1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2567	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1550		2568
1551	if ($self->{record_replies}) {	2569	if ($self->{record_replies}) {
1552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2570	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2571
1553	} else {	2572	} else {
		2573	my $pl = $self->contr;
		2574
		2575	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2576	my $dialog = $pl->{npc_dialog};
		2577	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2578
		2579	} else {
1554	$msg = $npc->name . " says: $msg" if $npc;	2580	$msg = $npc->name . " says: $msg" if $npc;
1555	$self->message ($msg, $flags);	2581	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2582	}
1556	}	2583	}
		2584	}
		2585
		2586	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2587
		2588	=cut
		2589
		2590	sub cf::object::send_msg {
		2591	my $pl = shift->contr
		2592	or return;
		2593	$pl->send_msg (@_);
1557	}	2594	}
1558		2595
1559	=item $player_object->may ("access")	2596	=item $player_object->may ("access")
1560		2597
1561	Returns wether the given player is authorized to access resource "access"	2598	Returns wether the given player is authorized to access resource "access"
…		…
1574		2611
1575	=item $player_object->enter_link	2612	=item $player_object->enter_link
1576		2613
1577	Freezes the player and moves him/her to a special map (C<{link}>).	2614	Freezes the player and moves him/her to a special map (C<{link}>).
1578		2615
1579	The player should be reaosnably safe there for short amounts of time. You	2616	The player should be reasonably safe there for short amounts of time (e.g.
1580	I<MUST> call C<leave_link> as soon as possible, though.	2617	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2618	though, as the player cannot control the character while it is on the link
		2619	map.
		2620
		2621	Will never block.
1581		2622
1582	=item $player_object->leave_link ($map, $x, $y)	2623	=item $player_object->leave_link ($map, $x, $y)
1583		2624
1584	Moves the player out of the specila link map onto the given map. If the	2625	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	2626	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	2627	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	2628	fails, to the emergency map position.
1588		2629
1589	Might block.	2630	Might block.
1590		2631
1591	=cut	2632	=cut
		2633
		2634	sub link_map {
		2635	unless ($LINK_MAP) {
		2636	$LINK_MAP = cf::map::find "{link}"
		2637	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2638	$LINK_MAP->load;
		2639	}
		2640
		2641	$LINK_MAP
		2642	}
1592		2643
1593	sub cf::object::player::enter_link {	2644	sub cf::object::player::enter_link {
1594	my ($self) = @_;	2645	my ($self) = @_;
1595		2646
1596	$self->deactivate_recursive;	2647	$self->deactivate_recursive;
1597		2648
1598	return if $self->map == $LINK_MAP;	2649	++$self->{_link_recursion};
		2650
		2651	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		2652
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2653	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	2654	if $self->map && $self->map->{path} ne "{link}";
1602		2655
1603	$self->enter_map ($LINK_MAP, 20, 20);	2656	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1604	}	2657	}
1605		2658
1606	sub cf::object::player::leave_link {	2659	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	2660	my ($self, $map, $x, $y) = @_;
		2661
		2662	return unless $self->contr->active;
1608		2663
1609	my $link_pos = delete $self->{_link_pos};	2664	my $link_pos = delete $self->{_link_pos};
1610		2665
1611	unless ($map) {	2666	unless ($map) {
1612	# restore original map position	2667	# restore original map position
…		…
1623	($x, $y) = (-1, -1)	2678	($x, $y) = (-1, -1)
1624	unless (defined $x) && (defined $y);	2679	unless (defined $x) && (defined $y);
1625		2680
1626	# use -1 or undef as default coordinates, not 0, 0	2681	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2682	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2683	if $x <= 0 && $y <= 0;
1629		2684
1630	$map->load;	2685	$map->load;
		2686	$map->load_neighbours;
1631		2687
1632	return unless $self->contr->active;	2688	return unless $self->contr->active;
		2689
		2690	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2691	if ($self->enter_map ($map, $x, $y)) {
		2692	# entering was successful
		2693	delete $self->{_link_recursion};
		2694	# only activate afterwards, to support waiting in hooks
1633	$self->activate_recursive;	2695	$self->activate_recursive;
1634	$self->enter_map ($map, $x, $y);
1635	}
1636
1637	cf::player->attach (
1638	on_logout => sub {
1639	my ($pl) = @_;
1640
1641	# abort map switching before logout
1642	if ($pl->ob->{_link_pos}) {
1643	cf::sync_job {
1644	$pl->ob->leave_link
1645	};
1646	}
1647	},	2696	}
1648	on_login => sub {
1649	my ($pl) = @_;
1650		2697
1651	# try to abort aborted map switching on player login :)	2698	}
1652	# should happen only on crashes
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668		2699
1669	=item $player_object->goto ($path, $x, $y)	2700	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1670		2701
		2702	Moves the player to the given map-path and coordinates by first freezing
		2703	her, loading and preparing them map, calling the provided $check callback
		2704	that has to return the map if sucecssful, and then unfreezes the player on
		2705	the new (success) or old (failed) map position. In either case, $done will
		2706	be called at the end of this process.
		2707
		2708	Note that $check will be called with a potentially non-loaded map, so if
		2709	it needs a loaded map it has to call C<< ->load >>.
		2710
1671	=cut	2711	=cut
		2712
		2713	our $GOTOGEN;
1672		2714
1673	sub cf::object::player::goto {	2715	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2716	my ($self, $path, $x, $y, $check, $done) = @_;
		2717
		2718	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2719	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2720	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2721	($path, $x, $y) = @$EMERGENCY_POSITION;
		2722	}
		2723
		2724	# do generation counting so two concurrent goto's will be executed in-order
		2725	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1675		2726
1676	$self->enter_link;	2727	$self->enter_link;
1677		2728
1678	(async {	2729	(async {
1679	$path = new cf::path $path;	2730	$Coro::current->{desc} = "player::goto $path $x $y";
1680		2731
1681	my $map = cf::map::find $path->as_string;	2732	# *tag paths override both path and x|y
		2733	if ($path =~ /^\*(.*)$/) {
		2734	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2735	my $ob = $obs[rand @obs];
		2736
		2737	# see if we actually can go there
		2738	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2739	$ob = $obs[rand @obs];
		2740	} else {
		2741	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	}
		2743	# else put us there anyways for now #d#
		2744
		2745	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2746	} else {
		2747	($path, $x, $y) = (undef, undef, undef);
		2748	}
		2749	}
		2750
		2751	my $map = eval {
		2752	my $map = defined $path ? cf::map::find $path : undef;
		2753
		2754	if ($map) {
1682	$map = $map->customise_for ($self) if $map;	2755	$map = $map->customise_for ($self);
1683		2756	$map = $check->($map, $x, $y, $self) if $check && $map;
1684	# warn "entering ", $map->path, " at ($x, $y)\n"	2757	} else {
1685	# if $map;
1686
1687	$map or $map->cluck ("oy");#d#
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2758	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2759	}
1689		2760
		2761	$map
		2762	};
		2763
		2764	if ($@) {
		2765	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2766	LOG llevError | logBacktrace, Carp::longmess $@;
		2767	}
		2768
		2769	if ($gen == $self->{_goto_generation}) {
		2770	delete $self->{_goto_generation};
1690	$self->leave_link ($map, $x, $y);	2771	$self->leave_link ($map, $x, $y);
		2772	}
		2773
		2774	$done->($self) if $done;
1691	})->prio (1);	2775	})->prio (1);
1692	}	2776	}
1693		2777
1694	=item $player_object->enter_exit ($exit_object)	2778	=item $player_object->enter_exit ($exit_object)
1695		2779
…		…
1697		2781
1698	sub parse_random_map_params {	2782	sub parse_random_map_params {
1699	my ($spec) = @_;	2783	my ($spec) = @_;
1700		2784
1701	my $rmp = { # defaults	2785	my $rmp = { # defaults
1702	xsize => 10,	2786	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2787	ysize => (cf::rndm 15, 40),
		2788	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2789	#layout => string,
1704	};	2790	};
1705		2791
1706	for (split /\n/, $spec) {	2792	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2793	my ($k, $v) = split /\s+/, $_, 2;
1708		2794
…		…
1720	# that depends on the exit object	2806	# that depends on the exit object
1721		2807
1722	my $rmp = parse_random_map_params $exit->msg;	2808	my $rmp = parse_random_map_params $exit->msg;
1723		2809
1724	if ($exit->map) {	2810	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	2811	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	2812	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	2813	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	2814	$rmp->{origin_y} = $exit->y;
		2815
		2816	$exit->map->touch;
1729	}	2817	}
1730		2818
1731	$rmp->{random_seed} ||= $exit->random_seed;	2819	$rmp->{random_seed} ||= $exit->random_seed;
1732		2820
1733	my $data = cf::to_json $rmp;	2821	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1734	my $md5 = Digest::MD5::md5_hex $data;	2822	my $md5 = Digest::MD5::md5_hex $data;
		2823	my $meta = "$RANDOMDIR/$md5.meta";
1735		2824
1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2825	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1737	aio_write $fh, 0, (length $data), $data, 0;	2826	aio_write $fh, 0, (length $data), $data, 0;
		2827	undef $fh;
		2828	aio_rename "$meta~", $meta;
1738		2829
		2830	my $slaying = "?random/$md5";
		2831
		2832	if ($exit->valid) {
1739	$exit->slaying ("?random/$md5");	2833	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	2834	$exit->msg (undef);
		2835	}
1741	}	2836	}
1742	}	2837	}
1743		2838
1744	sub cf::object::player::enter_exit {	2839	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	2840	my ($self, $exit) = @_;
…		…
1747	return unless $self->type == cf::PLAYER;	2842	return unless $self->type == cf::PLAYER;
1748		2843
1749	$self->enter_link;	2844	$self->enter_link;
1750		2845
1751	(async {	2846	(async {
1752	$self->deactivate_recursive; # just to be sure	2847	$Coro::current->{desc} = "enter_exit";
		2848
1753	unless (eval {	2849	unless (eval {
		2850	$self->deactivate_recursive; # just to be sure
		2851
		2852	# random map handling
		2853	{
		2854	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2855
1754	prepare_random_map $exit	2856	prepare_random_map $exit
1755	if $exit->slaying eq "/!";	2857	if $exit->slaying eq "/!";
		2858	}
1756		2859
1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2860	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2861	my $x = $exit->stats->hp;
		2862	my $y = $exit->stats->sp;
1759		2863
		2864	$self->goto ($map, $x, $y);
		2865
		2866	# if exit is damned, update players death & WoR home-position
		2867	$self->contr->savebed ($map, $x, $y)
		2868	if $exit->flag (cf::FLAG_DAMNED);
		2869
1760	1;	2870	1
1761	}) {	2871	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	2872	$self->message ("Something went wrong deep within the deliantra server. "
1763	. "I'll try to bring you back to the map you were before. "	2873	. "I'll try to bring you back to the map you were before. "
1764	. "Please report this to the dungeon master",	2874	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	2875	cf::NDI_UNIQUE | cf::NDI_RED);
1766		2876
1767	warn "ERROR in enter_exit: $@";	2877	error "ERROR in enter_exit: $@";
1768	$self->leave_link;	2878	$self->leave_link;
1769	}	2879	}
1770	})->prio (1);	2880	})->prio (1);
1771	}	2881	}
1772		2882
…		…
1783		2893
1784	sub cf::client::send_drawinfo {	2894	sub cf::client::send_drawinfo {
1785	my ($self, $text, $flags) = @_;	2895	my ($self, $text, $flags) = @_;
1786		2896
1787	utf8::encode $text;	2897	utf8::encode $text;
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2898	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1789	}	2899	}
1790		2900
		2901	=item $client->send_big_packet ($pkt)
		2902
		2903	Like C<send_packet>, but tries to compress large packets, and fragments
		2904	them as required.
		2905
		2906	=cut
		2907
		2908	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2909
		2910	sub cf::client::send_big_packet {
		2911	my ($self, $pkt) = @_;
		2912
		2913	# try lzf for large packets
		2914	$pkt = "lzf " . Compress::LZF::compress $pkt
		2915	if 1024 <= length $pkt and $self->{can_lzf};
		2916
		2917	# split very large packets
		2918	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2919	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2920	$pkt = "frag";
		2921	}
		2922
		2923	$self->send_packet ($pkt);
		2924	}
		2925
		2926	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2927
		2928	Send a drawinfo or msg packet to the client, formatting the msg for the
		2929	client if neccessary. C<$type> should be a string identifying the type of
		2930	the message, with C<log> being the default. If C<$color> is negative, suppress
		2931	the message unless the client supports the msg packet.
		2932
		2933	=cut
		2934
		2935	# non-persistent channels (usually the info channel)
		2936	our %CHANNEL = (
		2937	"c/motd" => {
		2938	id => "infobox",
		2939	title => "MOTD",
		2940	reply => undef,
		2941	tooltip => "The message of the day",
		2942	},
		2943	"c/identify" => {
		2944	id => "infobox",
		2945	title => "Identify",
		2946	reply => undef,
		2947	tooltip => "Items recently identified",
		2948	},
		2949	"c/examine" => {
		2950	id => "infobox",
		2951	title => "Examine",
		2952	reply => undef,
		2953	tooltip => "Signs and other items you examined",
		2954	},
		2955	"c/shopinfo" => {
		2956	id => "infobox",
		2957	title => "Shop Info",
		2958	reply => undef,
		2959	tooltip => "What your bargaining skill tells you about the shop",
		2960	},
		2961	"c/book" => {
		2962	id => "infobox",
		2963	title => "Book",
		2964	reply => undef,
		2965	tooltip => "The contents of a note or book",
		2966	},
		2967	"c/lookat" => {
		2968	id => "infobox",
		2969	title => "Look",
		2970	reply => undef,
		2971	tooltip => "What you saw there",
		2972	},
		2973	"c/who" => {
		2974	id => "infobox",
		2975	title => "Players",
		2976	reply => undef,
		2977	tooltip => "Shows players who are currently online",
		2978	},
		2979	"c/body" => {
		2980	id => "infobox",
		2981	title => "Body Parts",
		2982	reply => undef,
		2983	tooltip => "Shows which body parts you posess and are available",
		2984	},
		2985	"c/statistics" => {
		2986	id => "infobox",
		2987	title => "Statistics",
		2988	reply => undef,
		2989	tooltip => "Shows your primary statistics",
		2990	},
		2991	"c/skills" => {
		2992	id => "infobox",
		2993	title => "Skills",
		2994	reply => undef,
		2995	tooltip => "Shows your experience per skill and item power",
		2996	},
		2997	"c/shopitems" => {
		2998	id => "infobox",
		2999	title => "Shop Items",
		3000	reply => undef,
		3001	tooltip => "Shows the items currently for sale in this shop",
		3002	},
		3003	"c/resistances" => {
		3004	id => "infobox",
		3005	title => "Resistances",
		3006	reply => undef,
		3007	tooltip => "Shows your resistances",
		3008	},
		3009	"c/pets" => {
		3010	id => "infobox",
		3011	title => "Pets",
		3012	reply => undef,
		3013	tooltip => "Shows information abotu your pets/a specific pet",
		3014	},
		3015	"c/perceiveself" => {
		3016	id => "infobox",
		3017	title => "Perceive Self",
		3018	reply => undef,
		3019	tooltip => "You gained detailed knowledge about yourself",
		3020	},
		3021	"c/uptime" => {
		3022	id => "infobox",
		3023	title => "Uptime",
		3024	reply => undef,
		3025	tooltip => "How long the server has been running since last restart",
		3026	},
		3027	"c/mapinfo" => {
		3028	id => "infobox",
		3029	title => "Map Info",
		3030	reply => undef,
		3031	tooltip => "Information related to the maps",
		3032	},
		3033	"c/party" => {
		3034	id => "party",
		3035	title => "Party",
		3036	reply => "gsay ",
		3037	tooltip => "Messages and chat related to your party",
		3038	},
		3039	"c/death" => {
		3040	id => "death",
		3041	title => "Death",
		3042	reply => undef,
		3043	tooltip => "Reason for and more info about your most recent death",
		3044	},
		3045	"c/say" => $SAY_CHANNEL,
		3046	"c/chat" => $CHAT_CHANNEL,
		3047	);
		3048
		3049	sub cf::client::send_msg {
		3050	my ($self, $channel, $msg, $color, @extra) = @_;
		3051
		3052	$msg = $self->pl->expand_cfpod ($msg)
		3053	unless $color & cf::NDI_VERBATIM;
		3054
		3055	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3056
		3057	# check predefined channels, for the benefit of C
		3058	if ($CHANNEL{$channel}) {
		3059	$channel = $CHANNEL{$channel};
		3060
		3061	$self->ext_msg (channel_info => $channel);
		3062	$channel = $channel->{id};
		3063
		3064	} elsif (ref $channel) {
		3065	# send meta info to client, if not yet sent
		3066	unless (exists $self->{channel}{$channel->{id}}) {
		3067	$self->{channel}{$channel->{id}} = $channel;
		3068	$self->ext_msg (channel_info => $channel);
		3069	}
		3070
		3071	$channel = $channel->{id};
		3072	}
		3073
		3074	return unless @extra || length $msg;
		3075
		3076	# default colour, mask it out
		3077	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3078	if $color & cf::NDI_DEF;
		3079
		3080	my $pkt = "msg "
		3081	. $self->{json_coder}->encode (
		3082	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3083	);
		3084
		3085	$self->send_big_packet ($pkt);
		3086	}
		3087
		3088	=item $client->ext_msg ($type, @msg)
		3089
		3090	Sends an ext event to the client.
		3091
		3092	=cut
		3093
		3094	sub cf::client::ext_msg($$@) {
		3095	my ($self, $type, @msg) = @_;
		3096
		3097	if ($self->extcmd == 2) {
		3098	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3099	} elsif ($self->extcmd == 1) { # TODO: remove
		3100	push @msg, msgtype => "event_$type";
		3101	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3102	}
		3103	}
		3104
		3105	=item $client->ext_reply ($msgid, @msg)
		3106
		3107	Sends an ext reply to the client.
		3108
		3109	=cut
		3110
		3111	sub cf::client::ext_reply($$@) {
		3112	my ($self, $id, @msg) = @_;
		3113
		3114	if ($self->extcmd == 2) {
		3115	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3116	} elsif ($self->extcmd == 1) {
		3117	#TODO: version 1, remove
		3118	unshift @msg, msgtype => "reply", msgid => $id;
		3119	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3120	}
		3121	}
1791		3122
1792	=item $success = $client->query ($flags, "text", \&cb)	3123	=item $success = $client->query ($flags, "text", \&cb)
1793		3124
1794	Queues a query to the client, calling the given callback with	3125	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3127	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1797		3128
1798	Queries can fail, so check the return code. Or don't, as queries will become	3129	Queries can fail, so check the return code. Or don't, as queries will
1799	reliable at some point in the future.	3130	become reliable at some point in the future.
1800		3131
1801	=cut	3132	=cut
1802		3133
1803	sub cf::client::query {	3134	sub cf::client::query {
1804	my ($self, $flags, $text, $cb) = @_;	3135	my ($self, $flags, $text, $cb) = @_;
…		…
1812	utf8::encode $text;	3143	utf8::encode $text;
1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1814		3145
1815	$self->send_packet ($self->{query_queue}[0][0])	3146	$self->send_packet ($self->{query_queue}[0][0])
1816	if @{ $self->{query_queue} } == 1;	3147	if @{ $self->{query_queue} } == 1;
		3148
		3149	1
1817	}	3150	}
1818		3151
1819	cf::client->attach (	3152	cf::client->attach (
		3153	on_connect => sub {
		3154	my ($ns) = @_;
		3155
		3156	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3157	},
1820	on_reply => sub {	3158	on_reply => sub {
1821	my ($ns, $msg) = @_;	3159	my ($ns, $msg) = @_;
1822		3160
1823	# this weird shuffling is so that direct followup queries	3161	# this weird shuffling is so that direct followup queries
1824	# get handled first	3162	# get handled first
1825	my $queue = delete $ns->{query_queue}	3163	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	3164	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		3165
1828	(shift @$queue)->[1]->($msg);	3166	(shift @$queue)->[1]->($msg);
		3167	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		3168
1830	push @{ $ns->{query_queue} }, @$queue;	3169	push @{ $ns->{query_queue} }, @$queue;
1831		3170
1832	if (@{ $ns->{query_queue} } == @$queue) {	3171	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	3172	if (@$queue) {
…		…
1835	} else {	3174	} else {
1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3175	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1837	}	3176	}
1838	}	3177	}
1839	},	3178	},
		3179	on_exticmd => sub {
		3180	my ($ns, $buf) = @_;
		3181
		3182	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3183
		3184	if (ref $msg) {
		3185	my ($type, $reply, @payload) =
		3186	"ARRAY" eq ref $msg
		3187	? @$msg
		3188	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3189
		3190	my @reply;
		3191
		3192	if (my $cb = $EXTICMD{$type}) {
		3193	@reply = $cb->($ns, @payload);
		3194	}
		3195
		3196	$ns->ext_reply ($reply, @reply)
		3197	if $reply;
		3198
		3199	} else {
		3200	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3201	}
		3202
		3203	cf::override;
		3204	},
1840	);	3205	);
1841		3206
1842	=item $client->async (\&cb)	3207	=item $client->async (\&cb)
1843		3208
1844	Create a new coroutine, running the specified callback. The coroutine will	3209	Create a new coroutine, running the specified callback. The coroutine will
…		…
1860		3225
1861	$coro	3226	$coro
1862	}	3227	}
1863		3228
1864	cf::client->attach (	3229	cf::client->attach (
1865	on_destroy => sub {	3230	on_client_destroy => sub {
1866	my ($ns) = @_;	3231	my ($ns) = @_;
1867		3232
1868	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3233	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1869	},	3234	},
1870	);	3235	);
…		…
1885	our $safe = new Safe "safe";	3250	our $safe = new Safe "safe";
1886	our $safe_hole = new Safe::Hole;	3251	our $safe_hole = new Safe::Hole;
1887		3252
1888	$SIG{FPE} = 'IGNORE';	3253	$SIG{FPE} = 'IGNORE';
1889		3254
1890	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3255	$safe->permit_only (Opcode::opset qw(
		3256	:base_core :base_mem :base_orig :base_math :base_loop
		3257	grepstart grepwhile mapstart mapwhile
		3258	sort time
		3259	));
1891		3260
1892	# here we export the classes and methods available to script code	3261	# here we export the classes and methods available to script code
1893		3262
1894	=pod	3263	=pod
1895		3264
1896	The following fucntions and emthods are available within a safe environment:	3265	The following functions and methods are available within a safe environment:
1897		3266
1898	cf::object contr pay_amount pay_player map	3267	cf::object
		3268	contr pay_amount pay_player map x y force_find force_add destroy
		3269	insert remove name archname title slaying race decrease split
		3270	value
		3271
1899	cf::object::player player	3272	cf::object::player
1900	cf::player peaceful	3273	player
1901	cf::map trigger	3274
		3275	cf::player
		3276	peaceful
		3277
		3278	cf::map
		3279	trigger
1902		3280
1903	=cut	3281	=cut
1904		3282
1905	for (	3283	for (
1906	["cf::object" => qw(contr pay_amount pay_player map)],	3284	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3285	insert remove inv nrof name archname title slaying race
		3286	decrease split destroy change_exp value msg lore send_msg)],
1907	["cf::object::player" => qw(player)],	3287	["cf::object::player" => qw(player)],
1908	["cf::player" => qw(peaceful)],	3288	["cf::player" => qw(peaceful send_msg)],
1909	["cf::map" => qw(trigger)],	3289	["cf::map" => qw(trigger)],
1910	) {	3290	) {
1911	no strict 'refs';
1912	my ($pkg, @funs) = @$_;	3291	my ($pkg, @funs) = @$_;
1913	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3292	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1914	for @funs;	3293	for @funs;
1915	}	3294	}
1916		3295
…		…
1931		3310
1932	my $qcode = $code;	3311	my $qcode = $code;
1933	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3312	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1934	$qcode =~ s/\n/\\n/g;	3313	$qcode =~ s/\n/\\n/g;
1935		3314
		3315	%vars = (_dummy => 0) unless %vars;
		3316
		3317	my @res;
1936	local $_;	3318	local $_;
1937	local @safe::cf::_safe_eval_args = values %vars;
1938		3319
1939	my $eval =	3320	my $eval =
1940	"do {\n"	3321	"do {\n"
1941	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3322	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1942	. "#line 0 \"{$qcode}\"\n"	3323	. "#line 0 \"{$qcode}\"\n"
1943	. $code	3324	. $code
1944	. "\n}"	3325	. "\n}"
1945	;	3326	;
1946		3327
		3328	if ($CFG{safe_eval}) {
1947	sub_generation_inc;	3329	sub_generation_inc;
		3330	local @safe::cf::_safe_eval_args = values %vars;
1948	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3331	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1949	sub_generation_inc;	3332	sub_generation_inc;
		3333	} else {
		3334	local @cf::_safe_eval_args = values %vars;
		3335	@res = wantarray ? eval eval : scalar eval $eval;
		3336	}
1950		3337
1951	if ($@) {	3338	if ($@) {
1952	warn "$@";	3339	warn "$@",
1953	warn "while executing safe code '$code'\n";	3340	"while executing safe code '$code'\n",
1954	warn "with arguments " . (join " ", %vars) . "\n";	3341	"with arguments " . (join " ", %vars) . "\n";
1955	}	3342	}
1956		3343
1957	wantarray ? @res : $res[0]	3344	wantarray ? @res : $res[0]
1958	}	3345	}
1959		3346
…		…
1973	=cut	3360	=cut
1974		3361
1975	sub register_script_function {	3362	sub register_script_function {
1976	my ($fun, $cb) = @_;	3363	my ($fun, $cb) = @_;
1977		3364
1978	no strict 'refs';	3365	$fun = "safe::$fun" if $CFG{safe_eval};
1979	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3366	*$fun = $safe_hole->wrap ($cb);
1980	}	3367	}
1981		3368
1982	=back	3369	=back
1983		3370
1984	=cut	3371	=cut
1985		3372
1986	#############################################################################	3373	#############################################################################
		3374	# the server's init and main functions
1987		3375
1988	=head2 EXTENSION DATABASE SUPPORT	3376	sub load_facedata($) {
		3377	my ($path) = @_;
1989		3378
1990	Crossfire maintains a very simple database for extension use. It can	3379	# HACK to clear player env face cache, we need some signal framework
1991	currently store anything that can be serialised using Storable, which	3380	# for this (global event?)
1992	excludes objects.	3381	%ext::player_env::MUSIC_FACE_CACHE = ();
1993		3382
1994	The parameter C<$family> should best start with the name of the extension	3383	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1995	using it, it should be unique.
1996		3384
1997	=over 4	3385	trace "loading facedata from $path\n";
1998		3386
1999	=item $hashref = cf::db_get $family	3387	0 < aio_load $path, my $facedata
		3388	or die "$path: $!";
2000		3389
2001	Return a hashref for use by the extension C<$family>, which can be	3390	$facedata = Coro::Storable::thaw $facedata;
2002	modified. After modifications, you have to call C<cf::db_dirty> or
2003	C<cf::db_sync>.
2004		3391
2005	=item $value = cf::db_get $family => $key	3392	$facedata->{version} == 2
		3393	or cf::cleanup "$path: version mismatch, cannot proceed.";
2006		3394
2007	Returns a single value from the database	3395	# patch in the exptable
2008		3396	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2009	=item cf::db_put $family => $hashref	3397	$facedata->{resource}{"res/exp_table"} = {
2010		3398	type => FT_RSRC,
2011	Stores the given family hashref into the database. Updates are delayed, if	3399	data => $exp_table,
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3400	hash => (Digest::MD5::md5 $exp_table),
2013
2014	=item cf::db_put $family => $key => $value
2015
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026
2027	=cut
2028
2029	our $DB;
2030
2031	{
2032	my $path = cf::localdir . "/database.pst";
2033
2034	sub db_load() {
2035	$DB = stat $path ? Storable::retrieve $path : { };
2036	}
2037
2038	my $pid;
2039
2040	sub db_save() {
2041	waitpid $pid, 0 if $pid;
2042	if (0 == ($pid = fork)) {
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}
2048	}
2049
2050	my $dirty;
2051
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});	3401	};
		3402	cf::cede_to_tick;
2060		3403
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}	3404	{
		3405	my $faces = $facedata->{faceinfo};
2065		3406
2066	sub db_get($;$) {	3407	while (my ($face, $info) = each %$faces) {
2067	@_ >= 2	3408	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2068	? $DB->{$_[0]}{$_[1]}
2069	: ($DB->{$_[0]} ||= { })
2070	}
2071		3409
2072	sub db_put($$;$) {	3410	cf::face::set_visibility $idx, $info->{visibility};
2073	if (@_ >= 3) {	3411	cf::face::set_magicmap $idx, $info->{magicmap};
2074	$DB->{$_[0]}{$_[1]} = $_[2];	3412	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2075	} else {	3413	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2076	$DB->{$_[0]} = $_[1];
2077	}
2078	db_dirty;
2079	}
2080		3414
2081	cf::global->attach (	3415	cf::cede_to_tick;
2082	prio => 10000,
2083	on_cleanup => sub {
2084	db_sync;
2085	},	3416	}
2086	);
2087	}
2088		3417
2089	#############################################################################	3418	while (my ($face, $info) = each %$faces) {
2090	# the server's main()	3419	next unless $info->{smooth};
2091		3420
2092	sub cfg_load {	3421	my $idx = cf::face::find $face
2093	open my $fh, "<:utf8", cf::confdir . "/config"	3422	or next;
2094	or return;
2095		3423
2096	local $/;	3424	if (my $smooth = cf::face::find $info->{smooth}) {
		3425	cf::face::set_smooth $idx, $smooth;
		3426	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3427	} else {
		3428	error "smooth face '$info->{smooth}' not found for face '$face'";
		3429	}
		3430
		3431	cf::cede_to_tick;
		3432	}
		3433	}
		3434
		3435	{
		3436	my $anims = $facedata->{animinfo};
		3437
		3438	while (my ($anim, $info) = each %$anims) {
		3439	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3440	cf::cede_to_tick;
		3441	}
		3442
		3443	cf::anim::invalidate_all; # d'oh
		3444	}
		3445
		3446	{
		3447	my $res = $facedata->{resource};
		3448
		3449	while (my ($name, $info) = each %$res) {
		3450	if (defined $info->{type}) {
		3451	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3452
		3453	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3454	cf::face::set_type $idx, $info->{type};
		3455	} else {
		3456	$RESOURCE{$name} = $info; # unused
		3457	}
		3458
		3459	cf::cede_to_tick;
		3460	}
		3461	}
		3462
		3463	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3464
		3465	1
		3466	}
		3467
		3468	register_exticmd fx_want => sub {
		3469	my ($ns, $want) = @_;
		3470
		3471	while (my ($k, $v) = each %$want) {
		3472	$ns->fx_want ($k, $v);
		3473	}
		3474	};
		3475
		3476	sub load_resource_file($) {
		3477	my $guard = lock_acquire "load_resource_file";
		3478
		3479	my $status = load_resource_file_ $_[0];
		3480	get_slot 0.1, 100;
		3481	cf::arch::commit_load;
		3482
		3483	$status
		3484	}
		3485
		3486	sub reload_regions {
		3487	# HACK to clear player env face cache, we need some signal framework
		3488	# for this (global event?)
		3489	%ext::player_env::MUSIC_FACE_CACHE = ();
		3490
		3491	load_resource_file "$MAPDIR/regions"
		3492	or die "unable to load regions file\n";
		3493
		3494	for (cf::region::list) {
		3495	$_->{match} = qr/$_->{match}/
		3496	if exists $_->{match};
		3497	}
		3498	}
		3499
		3500	sub reload_facedata {
		3501	load_facedata "$DATADIR/facedata"
		3502	or die "unable to load facedata\n";
		3503	}
		3504
		3505	sub reload_archetypes {
		3506	load_resource_file "$DATADIR/archetypes"
		3507	or die "unable to load archetypes\n";
		3508	}
		3509
		3510	sub reload_treasures {
		3511	load_resource_file "$DATADIR/treasures"
		3512	or die "unable to load treasurelists\n";
		3513	}
		3514
		3515	sub reload_sound {
		3516	trace "loading sound config from $DATADIR/sound\n";
		3517
		3518	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3519	or die "$DATADIR/sound $!";
		3520
		3521	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3522
		3523	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3524	my $sound = $soundconf->{compat}[$_]
		3525	or next;
		3526
		3527	my $face = cf::face::find "sound/$sound->[1]";
		3528	cf::sound::set $sound->[0] => $face;
		3529	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3530	}
		3531
		3532	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3533	my $face = cf::face::find "sound/$v";
		3534	cf::sound::set $k => $face;
		3535	}
		3536	}
		3537
		3538	sub reload_resources {
		3539	trace "reloading resource files...\n";
		3540
		3541	reload_exp_table;
		3542	reload_materials;
		3543	reload_facedata;
		3544	reload_sound;
		3545	reload_archetypes;
		3546	reload_regions;
		3547	reload_treasures;
		3548
		3549	trace "finished reloading resource files\n";
		3550	}
		3551
		3552	sub reload_config {
		3553	trace "reloading config file...\n";
		3554
		3555	0 < aio_load "$CONFDIR/config", my $config
		3556	or die "$CONFDIR/config: $!";
		3557
		3558	utf8::decode $config;
		3559
		3560	cf::get_slot 0.1, 10, "reload_config"; # yaml might be slow...
2097	*CFG = YAML::Syck::Load <$fh>;	3561	*CFG = YAML::XS::Load $config;
2098		3562
2099	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3563	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2100		3564
2101	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3565	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2102	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3566	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2103		3567
2104	if (exists $CFG{mlockall}) {	3568	if (exists $CFG{mlockall}) {
…		…
2108	};	3572	};
2109	warn $@ if $@;	3573	warn $@ if $@;
2110	}	3574	}
2111	}	3575	}
2112		3576
		3577	sub pidfile() {
		3578	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3579	or die "$PIDFILE: $!";
		3580	flock $fh, &Fcntl::LOCK_EX
		3581	or die "$PIDFILE: flock: $!";
		3582	$fh
		3583	}
		3584
		3585	# make sure only one server instance is running at any one time
		3586	sub atomic {
		3587	my $fh = pidfile;
		3588
		3589	my $pid = <$fh>;
		3590	kill 9, $pid if $pid > 0;
		3591
		3592	seek $fh, 0, 0;
		3593	print $fh $$;
		3594	}
		3595
		3596	sub main_loop {
		3597	trace "EV::loop starting\n";
		3598	if (1) {
		3599	EV::loop;
		3600	}
		3601	trace "EV::loop returned\n";
		3602	goto &main_loop unless $REALLY_UNLOOP;
		3603	}
		3604
2113	sub main {	3605	sub main {
		3606	cf::init_globals; # initialise logging
		3607
		3608	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3609	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3610	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3611	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3612
		3613	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3614
2114	# we must not ever block the main coroutine	3615	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	3616	local $Coro::idle = sub {
2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3617	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2117	async { Event::one_event };	3618	(async {
		3619	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3620	EV::loop EV::LOOP_ONESHOT;
		3621	})->prio (Coro::PRIO_MAX);
2118	};	3622	};
2119		3623
2120	cfg_load;	3624	evthread_start IO::AIO::poll_fileno;
2121	db_load;	3625
		3626	cf::sync_job {
		3627	cf::incloader::init ();
		3628
		3629	cf::init_anim;
		3630	cf::init_attackmess;
		3631	cf::init_dynamic;
		3632
		3633	cf::load_settings;
		3634
		3635	reload_resources;
		3636	reload_config;
		3637	db_init;
		3638
		3639	cf::init_uuid;
		3640	cf::init_signals;
		3641	cf::init_skills;
		3642
		3643	cf::init_beforeplay;
		3644
		3645	atomic;
		3646
2122	load_extensions;	3647	load_extensions;
2123	Event::loop;	3648
		3649	utime time, time, $RUNTIMEFILE;
		3650
		3651	# no (long-running) fork's whatsoever before this point(!)
		3652	use POSIX ();
		3653	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3654
		3655	(pop @POST_INIT)->(0) while @POST_INIT;
		3656	};
		3657
		3658	cf::object::thawer::errors_are_fatal 0;
		3659	info "parse errors in files are no longer fatal from this point on.\n";
		3660
		3661	my $free_main; $free_main = EV::idle sub {
		3662	undef $free_main;
		3663	undef &main; # free gobs of memory :)
		3664	};
		3665
		3666	goto &main_loop;
2124	}	3667	}
2125		3668
2126	#############################################################################	3669	#############################################################################
2127	# initialisation	3670	# initialisation and cleanup
2128		3671
		3672	# install some emergency cleanup handlers
		3673	BEGIN {
		3674	our %SIGWATCHER = ();
		3675	for my $signal (qw(INT HUP TERM)) {
		3676	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3677	cf::cleanup "SIG$signal";
		3678	};
		3679	}
		3680	}
		3681
		3682	sub write_runtime_sync {
		3683	my $t0 = AE::time;
		3684
		3685	# first touch the runtime file to show we are still running:
		3686	# the fsync below can take a very very long time.
		3687
		3688	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3689
		3690	my $guard = cf::lock_acquire "write_runtime";
		3691
		3692	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3693	or return;
		3694
		3695	my $value = $cf::RUNTIME + 90 + 10;
		3696	# 10 is the runtime save interval, for a monotonic clock
		3697	# 60 allows for the watchdog to kill the server.
		3698
		3699	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3700	and return;
		3701
		3702	# always fsync - this file is important
		3703	aio_fsync $fh
		3704	and return;
		3705
		3706	# touch it again to show we are up-to-date
		3707	aio_utime $fh, undef, undef;
		3708
		3709	close $fh
		3710	or return;
		3711
		3712	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3713	and return;
		3714
		3715	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3716
		3717	1
		3718	}
		3719
		3720	our $uuid_lock;
		3721	our $uuid_skip;
		3722
		3723	sub write_uuid_sync($) {
		3724	$uuid_skip ||= $_[0];
		3725
		3726	return if $uuid_lock;
		3727	local $uuid_lock = 1;
		3728
		3729	my $uuid = "$LOCALDIR/uuid";
		3730
		3731	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3732	or return;
		3733
		3734	my $value = uuid_seq uuid_cur;
		3735
		3736	unless ($value) {
		3737	info "cowardly refusing to write zero uuid value!\n";
		3738	return;
		3739	}
		3740
		3741	my $value = uuid_str $value + $uuid_skip;
		3742	$uuid_skip = 0;
		3743
		3744	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3745	and return;
		3746
		3747	# always fsync - this file is important
		3748	aio_fsync $fh
		3749	and return;
		3750
		3751	close $fh
		3752	or return;
		3753
		3754	aio_rename "$uuid~", $uuid
		3755	and return;
		3756
		3757	trace "uuid file written ($value).\n";
		3758
		3759	1
		3760
		3761	}
		3762
		3763	sub write_uuid($$) {
		3764	my ($skip, $sync) = @_;
		3765
		3766	$sync ? write_uuid_sync $skip
		3767	: async { write_uuid_sync $skip };
		3768	}
		3769
		3770	sub emergency_save() {
		3771	my $freeze_guard = cf::freeze_mainloop;
		3772
		3773	info "emergency_perl_save: enter\n";
		3774
		3775	# this is a trade-off: we want to be very quick here, so
		3776	# save all maps without fsync, and later call a global sync
		3777	# (which in turn might be very very slow)
		3778	local $USE_FSYNC = 0;
		3779
		3780	cf::sync_job {
		3781	cf::write_runtime_sync; # external watchdog should not bark
		3782
		3783	# use a peculiar iteration method to avoid tripping on perl
		3784	# refcount bugs in for. also avoids problems with players
		3785	# and maps saved/destroyed asynchronously.
		3786	info "emergency_perl_save: begin player save\n";
		3787	for my $login (keys %cf::PLAYER) {
		3788	my $pl = $cf::PLAYER{$login} or next;
		3789	$pl->valid or next;
		3790	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3791	$pl->save;
		3792	}
		3793	info "emergency_perl_save: end player save\n";
		3794
		3795	cf::write_runtime_sync; # external watchdog should not bark
		3796
		3797	info "emergency_perl_save: begin map save\n";
		3798	for my $path (keys %cf::MAP) {
		3799	my $map = $cf::MAP{$path} or next;
		3800	$map->valid or next;
		3801	$map->save;
		3802	}
		3803	info "emergency_perl_save: end map save\n";
		3804
		3805	cf::write_runtime_sync; # external watchdog should not bark
		3806
		3807	info "emergency_perl_save: begin database checkpoint\n";
		3808	BDB::db_env_txn_checkpoint $DB_ENV;
		3809	info "emergency_perl_save: end database checkpoint\n";
		3810
		3811	info "emergency_perl_save: begin write uuid\n";
		3812	write_uuid_sync 1;
		3813	info "emergency_perl_save: end write uuid\n";
		3814
		3815	cf::write_runtime_sync; # external watchdog should not bark
		3816
		3817	trace "emergency_perl_save: syncing database to disk";
		3818	BDB::db_env_txn_checkpoint $DB_ENV;
		3819
		3820	info "emergency_perl_save: starting sync\n";
		3821	IO::AIO::aio_sync sub {
		3822	info "emergency_perl_save: finished sync\n";
		3823	};
		3824
		3825	cf::write_runtime_sync; # external watchdog should not bark
		3826
		3827	trace "emergency_perl_save: flushing outstanding aio requests";
		3828	while (IO::AIO::nreqs || BDB::nreqs) {
		3829	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3830	}
		3831
		3832	cf::write_runtime_sync; # external watchdog should not bark
		3833	};
		3834
		3835	info "emergency_perl_save: leave\n";
		3836	}
		3837
		3838	sub post_cleanup {
		3839	my ($make_core) = @_;
		3840
		3841	IO::AIO::flush;
		3842
		3843	error Carp::longmess "post_cleanup backtrace"
		3844	if $make_core;
		3845
		3846	my $fh = pidfile;
		3847	unlink $PIDFILE if <$fh> == $$;
		3848	}
		3849
		3850	# a safer delete_package, copied from Symbol
		3851	sub clear_package($) {
		3852	my $pkg = shift;
		3853
		3854	# expand to full symbol table name if needed
		3855	unless ($pkg =~ /^main::.*::$/) {
		3856	$pkg = "main$pkg" if $pkg =~ /^::/;
		3857	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3858	$pkg .= '::' unless $pkg =~ /::$/;
		3859	}
		3860
		3861	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3862	my $stem_symtab = *{$stem}{HASH};
		3863
		3864	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3865	or return;
		3866
		3867	# clear all symbols
		3868	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3869	for my $name (keys %$leaf_symtab) {
		3870	_gv_clear *{"$pkg$name"};
		3871	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3872	}
		3873	}
		3874
2129	sub reload() {	3875	sub do_reload_perl() {
2130	# can/must only be called in main	3876	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	3877	unless (in_main) {
2132	warn "can only reload from main coroutine\n";	3878	error "can only reload from main coroutine";
2133	return;	3879	return;
2134	}	3880	}
2135		3881
		3882	return if $RELOAD++;
		3883
		3884	my $t1 = AE::time;
		3885
		3886	while ($RELOAD) {
		3887	cf::get_slot 0.1, -1, "reload_perl";
2136	warn "reloading...";	3888	info "reloading...";
2137		3889
2138	my $guard = freeze_mainloop;	3890	trace "entering sync_job";
		3891
		3892	cf::sync_job {
2139	cf::emergency_save;	3893	#cf::emergency_save;
2140		3894
2141	eval {
2142	# if anything goes wrong in here, we should simply crash as we already saved
2143
2144	# cancel all watchers
2145	for (Event::all_watchers) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;
2147	}
2148
2149	# cancel all extension coros	3895	trace "cancelling all extension coros";
2150	$_->cancel for values %EXT_CORO;	3896	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();	3897	%EXT_CORO = ();
2152		3898
2153	# unload all extensions	3899	trace "removing commands";
2154	for (@exts) {	3900	%COMMAND = ();
2155	warn "unloading <$_>";
2156	unload_extension $_;
2157	}
2158		3901
2159	# unload all modules loaded from $LIBDIR	3902	trace "removing ext/exti commands";
2160	while (my ($k, $v) = each %INC) {	3903	%EXTCMD = ();
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3904	%EXTICMD = ();
2162		3905
2163	warn "removing <$k>";	3906	trace "unloading/nuking all extensions";
2164	delete $INC{$k};	3907	for my $pkg (@EXTS) {
		3908	trace "... unloading $pkg";
2165		3909
2166	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;
2168
2169	if (my $cb = $k->can ("unload_module")) {	3910	if (my $cb = $pkg->can ("unload")) {
		3911	eval {
2170	$cb->();	3912	$cb->($pkg);
		3913	1
		3914	} or error "$pkg unloaded, but with errors: $@";
		3915	}
		3916
		3917	trace "... clearing $pkg";
		3918	clear_package $pkg;
2171	}	3919	}
2172		3920
2173	Symbol::delete_package $k;	3921	trace "unloading all perl modules loaded from $LIBDIR";
		3922	while (my ($k, $v) = each %INC) {
		3923	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3924
		3925	trace "... unloading $k";
		3926	delete $INC{$k};
		3927
		3928	$k =~ s/\.pm$//;
		3929	$k =~ s/\//::/g;
		3930
		3931	if (my $cb = $k->can ("unload_module")) {
		3932	$cb->();
		3933	}
		3934
		3935	clear_package $k;
2174	}	3936	}
2175		3937
2176	# sync database to disk
2177	cf::db_sync;
2178	IO::AIO::flush;
2179
2180	# get rid of safe::, as good as possible	3938	trace "getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	3939	clear_package "safe::$_"
2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3940	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2183		3941
2184	# remove register_script_function callbacks	3942	trace "unloading cf.pm \"a bit\"";
2185	# TODO
2186
2187	# unload cf.pm "a bit"
2188	delete $INC{"cf.pm"};	3943	delete $INC{"cf.pm"};
		3944	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2189		3945
2190	# don't, removes xs symbols, too,	3946	# don't, removes xs symbols, too,
2191	# and global variables created in xs	3947	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	3948	#clear_package __PACKAGE__;
2193		3949
2194	# reload cf.pm	3950	info "unload completed, starting to reload now";
		3951
2195	warn "reloading cf.pm";	3952	trace "reloading cf.pm";
2196	require cf;	3953	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3954	cf::_connect_to_perl_1;
2198		3955
2199	# load config and database again	3956	trace "loading config and database again";
2200	cf::cfg_load;	3957	cf::reload_config;
2201	cf::db_load;
2202		3958
2203	# load extensions
2204	warn "load extensions";	3959	trace "loading extensions";
2205	cf::load_extensions;	3960	cf::load_extensions;
2206		3961
2207	# reattach attachments to objects	3962	if ($REATTACH_ON_RELOAD) {
2208	warn "reattach";	3963	trace "reattaching attachments to objects/players";
2209	_global_reattach;	3964	_global_reattach; # objects, sockets
		3965	trace "reattaching attachments to maps";
2210	reattach $_ for values %MAP;	3966	reattach $_ for values %MAP;
		3967	trace "reattaching attachments to players";
		3968	reattach $_ for values %PLAYER;
		3969	}
		3970
		3971	trace "running post_init jobs";
		3972	(pop @POST_INIT)->(1) while @POST_INIT;
		3973
		3974	trace "leaving sync_job";
		3975
		3976	1
		3977	} or do {
		3978	error $@;
		3979	cf::cleanup "error while reloading, exiting.";
		3980	};
		3981
		3982	info "reloaded";
		3983	--$RELOAD;
		3984	}
		3985
		3986	$t1 = AE::time - $t1;
		3987	info "reload completed in ${t1}s\n";
		3988	};
		3989
		3990	our $RELOAD_WATCHER; # used only during reload
		3991
		3992	sub reload_perl() {
		3993	# doing reload synchronously and two reloads happen back-to-back,
		3994	# coro crashes during coro_state_free->destroy here.
		3995
		3996	$RELOAD_WATCHER ||= cf::async {
		3997	Coro::AIO::aio_wait cache_extensions;
		3998
		3999	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4000	do_reload_perl;
		4001	undef $RELOAD_WATCHER;
		4002	};
2211	};	4003	};
2212
2213	if ($@) {
2214	warn $@;
2215	warn "error while reloading, exiting.";
2216	exit 1;
2217	}
2218
2219	warn "reloaded successfully";
2220	};
2221
2222	#############################################################################
2223
2224	unless ($LINK_MAP) {
2225	$LINK_MAP = cf::map::new;
2226
2227	$LINK_MAP->width (41);
2228	$LINK_MAP->height (41);
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,
2237	cb => sub {
2238	$_[0]->w->cancel;
2239
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});
2258
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	4004	}
2264
2265	register "<global>", __PACKAGE__;
2266		4005
2267	register_command "reload" => sub {	4006	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	4007	my ($who, $arg) = @_;
2269		4008
2270	if ($who->flag (FLAG_WIZ)) {	4009	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	4010	$who->message ("reloading server.");
		4011	async {
		4012	$Coro::current->{desc} = "perl_reload";
		4013	reload_perl;
		4014	};
2274	}	4015	}
2275	};	4016	};
2276		4017
2277	unshift @INC, $LIBDIR;	4018	#############################################################################
2278		4019
2279	$TICK_WATCHER = Event->timer (	4020	my $bug_warning = 0;
2280	reentrant => 0,	4021
2281	prio => 0,	4022	our @WAIT_FOR_TICK;
2282	at => $NEXT_TICK || $TICK,	4023	our @WAIT_FOR_TICK_BEGIN;
2283	data => WF_AUTOCANCEL,	4024
2284	cb => sub {	4025	sub wait_for_tick() {
		4026	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4027
		4028	my $signal = new Coro::Signal;
		4029	push @WAIT_FOR_TICK, $signal;
		4030	$signal->wait;
		4031	}
		4032
		4033	sub wait_for_tick_begin() {
		4034	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4035
		4036	my $signal = new Coro::Signal;
		4037	push @WAIT_FOR_TICK_BEGIN, $signal;
		4038	$signal->wait;
		4039	}
		4040
		4041	sub tick {
		4042	if ($Coro::current != $Coro::main) {
		4043	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4044	unless ++$bug_warning > 10;
		4045	return;
		4046	}
		4047
2285	cf::server_tick; # one server iteration	4048	cf::server_tick; # one server iteration
2286	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;
2288		4049
2289	# if we are delayed by four ticks or more, skip them all	4050	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2291		4051
2292	$TICK_WATCHER->at ($NEXT_TICK);	4052	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2293	$TICK_WATCHER->start;	4053	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2294	},	4054	Coro::async_pool {
2295	);	4055	$Coro::current->{desc} = "runtime saver";
2296
2297	IO::AIO::max_poll_time $TICK * 0.2;
2298
2299	Event->io (
2300	fd => IO::AIO::poll_fileno,
2301	poll => 'r',
2302	prio => 5,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306
2307	Event->timer (
2308	data => WF_AUTOCANCEL,
2309	after => 0,
2310	interval => 10,
2311	cb => sub {
2312	(Coro::unblock_sub {
2313	write_runtime	4056	write_runtime_sync
2314	or warn "ERROR: unable to write runtime file: $!";	4057	or error "ERROR: unable to write runtime file: $!";
2315	})->();	4058	};
2316	},	4059	}
2317	);	4060
		4061	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4062	$sig->send;
		4063	}
		4064	while (my $sig = shift @WAIT_FOR_TICK) {
		4065	$sig->send;
		4066	}
		4067
		4068	$LOAD = ($NOW - $TICK_START) / $TICK;
		4069	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4070
		4071	if (0) {
		4072	if ($NEXT_TICK) {
		4073	my $jitter = $TICK_START - $NEXT_TICK;
		4074	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4075	debug "jitter $JITTER\n";#d#
		4076	}
		4077	}
		4078	}
		4079
		4080	{
		4081	# configure BDB
		4082
		4083	BDB::min_parallel 16;
		4084	BDB::max_poll_reqs $TICK * 0.1;
		4085	$AnyEvent::BDB::WATCHER->priority (1);
		4086
		4087	unless ($DB_ENV) {
		4088	$DB_ENV = BDB::db_env_create;
		4089	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4090	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4091	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4092	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4093	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4094
		4095	cf::sync_job {
		4096	eval {
		4097	BDB::db_env_open
		4098	$DB_ENV,
		4099	$BDBDIR,
		4100	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4101	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4102	0666;
		4103
		4104	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4105	};
		4106
		4107	cf::cleanup "db_env_open(db): $@" if $@;
		4108	};
		4109	}
		4110
		4111	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4112	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4113	};
		4114	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4115	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4116	};
		4117	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4118	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4119	};
		4120	}
		4121
		4122	{
		4123	# configure IO::AIO
		4124
		4125	IO::AIO::min_parallel 8;
		4126	IO::AIO::max_poll_time $TICK * 0.1;
		4127	undef $AnyEvent::AIO::WATCHER;
		4128	}
		4129
		4130	my $_log_backtrace;
		4131
		4132	sub _log_backtrace {
		4133	my ($msg, @addr) = @_;
		4134
		4135	$msg =~ s/\n//;
		4136
		4137	# limit the # of concurrent backtraces
		4138	if ($_log_backtrace < 2) {
		4139	++$_log_backtrace;
		4140	my $perl_bt = Carp::longmess $msg;
		4141	async {
		4142	$Coro::current->{desc} = "abt $msg";
		4143
		4144	my @bt = fork_call {
		4145	@addr = map { sprintf "%x", $_ } @addr;
		4146	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4147	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4148	or die "addr2line: $!";
		4149
		4150	my @funcs;
		4151	my @res = <$fh>;
		4152	chomp for @res;
		4153	while (@res) {
		4154	my ($func, $line) = splice @res, 0, 2, ();
		4155	push @funcs, "[$func] $line";
		4156	}
		4157
		4158	@funcs
		4159	};
		4160
		4161	LOG llevInfo, "[ABT] $perl_bt\n";
		4162	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4163	LOG llevInfo, "[ABT] $_\n" for @bt;
		4164	--$_log_backtrace;
		4165	};
		4166	} else {
		4167	LOG llevInfo, "[ABT] $msg\n";
		4168	LOG llevInfo, "[ABT] [suppressed]\n";
		4169	}
		4170	}
		4171
		4172	# load additional modules
		4173	require "cf/$_.pm" for @EXTRA_MODULES;
		4174	cf::_connect_to_perl_2;
2318		4175
2319	END { cf::emergency_save }	4176	END { cf::emergency_save }
2320		4177
2321	1	4178	1
2322		4179

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