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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.574 by root, Sun May 8 21:51:27 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		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
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
45	our $NOW;	138	our $NOW;
46		139
47	our %CFG;	140	our (%PLAYER, %PLAYER_LOADING); # all users
		141	our (%MAP, %MAP_LOADING ); # all maps
		142	our $LINK_MAP; # the special {link} map, which is always available
48		143
49	our $UPTIME; $UPTIME ||= time;	144	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		146
52	our %MAP; # all maps	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	148	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $RANDOM_MAPS = cf::localdir . "/random";	149	our $JITTER; # average jitter
55	our %EXT_CORO;	150	our $TICK_START; # for load detecting purposes
		151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
56		159
57	binmode STDOUT;	160	binmode STDOUT;
58	binmode STDERR;	161	binmode STDERR;
59		162
60	# read virtual server time, if available	163	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
65	}	168	}
66		169
67	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		171
73	# a special map that is always available	172	mkdir $_
74	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		174
75	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
76		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
77	#############################################################################	183	#############################################################################
78		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
79	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
80		197
81	=over 4	198	=over 4
82		199
83	=item $cf::UPTIME	200	=item $cf::UPTIME
84		201
85	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
86		218
87	=item $cf::RUNTIME	219	=item $cf::RUNTIME
88		220
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	222	every server tick.
91		223
92	=item $cf::LIBDIR	224	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		225	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		226	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		227
94	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		230	unique-items directory, player file directory, random maps directory and
		231	database environment.
96		232
		233	=item $cf::LOADAVG
		234
		235	The current CPU load on the server (alpha-smoothed), as a value between 0
		236	(none) and 1 (overloaded), indicating how much time is spent on processing
		237	objects per tick. Healthy values are < 0.5.
		238
97	=item $cf::NOW	239	=item $cf::LOAD
98		240
99	The time of the last (current) server tick.	241	The raw value load value from the last tick.
100
101	=item $cf::TICK
102
103	The interval between server ticks, in seconds.
104		242
105	=item %cf::CFG	243	=item %cf::CFG
106		244
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	246	from wherever your confdir points to.
109		247
		248	=item cf::wait_for_tick, cf::wait_for_tick_begin
		249
		250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		251	returns directly I<after> the tick processing (and consequently, can only wake one thread
		252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
		282
110	=back	283	=back
111		284
112	=cut	285	=cut
113		286
114	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	294	my $msg = join "", @_;
117	utf8::encode $msg;
118		295
119	$msg .= "\n"	296	$msg .= "\n"
120	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
121		298
122	LOG llevError, "cfperl: $msg";	299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	300
124	}	301	LOG llevWarn, $msg;
		302	};
		303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
125		317
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	322	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		323	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	324	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		325
133	# we bless all objects into (empty) derived classes to force a method lookup	326	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	327	# within the Safe compartment.
135	for my $pkg (qw(	328	for my $pkg (qw(
136	cf::global cf::attachable	329	cf::global cf::attachable
137	cf::object cf::object::player	330	cf::object cf::object::player
138	cf::client cf::player	331	cf::client cf::player
139	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
140	cf::map cf::party cf::region	334	cf::party cf::region
141	)) {	335	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	337	}
145		338
146	$Event::DIED = sub {	339	$EV::DIED = sub {
147	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
148	};	341	};
149		342
150	my %ext_pkg;	343	#############################################################################
151	my @exts;	344
152	my @hook;	345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
153		349
154	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
155		351
156	=over 4	352	=over 4
157		353
158	=cut	354	=item dumpval $ref
159		355
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	356	=cut
161		357
		358	sub dumpval {
		359	eval {
		360	local $SIG{__DIE__};
		361	my $d;
		362	if (1) {
		363	$d = new Data::Dumper([$_[0]], ["*var"]);
		364	$d->Terse(1);
		365	$d->Indent(2);
		366	$d->Quotekeys(0);
		367	$d->Useqq(1);
		368	#$d->Bless(...);
		369	$d->Seen($_[1]) if @_ > 1;
		370	$d = $d->Dump();
		371	}
		372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		373	$d
		374	} || "[unable to dump $_[0]: '$@']";
		375	}
		376
		377	=item $scalar = load_file $path
		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
162	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
163		392
164	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
165		394
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	395	=item $json = cf::encode_json $ref
174		396
175	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
176		398
177	=cut	399	=cut
178		400
179	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	402
181	JSON::Syck::Dump $_[0]	403	sub encode_json($) { $json_coder->encode ($_[0]) }
		404	sub decode_json($) { $json_coder->decode ($_[0]) }
		405
		406	=item $ref = cf::decode_storable $scalar
		407
		408	Same as Coro::Storable::thaw, so blocks.
		409
		410	=cut
		411
		412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		413
		414	=item $ref = cf::decode_yaml $scalar
		415
		416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		417
		418	=cut
		419
		420	sub decode_yaml($) {
		421	fork_call { YAML::XS::Load $_[0] } @_
		422	}
		423
		424	=item $scalar = cf::unlzf $scalar
		425
		426	Same as Compress::LZF::compress, but takes server ticks into account, so
		427	blocks.
		428
		429	=cut
		430
		431	sub unlzf($) {
		432	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		433	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		434	Compress::LZF::decompress $_[0]
		435	}
		436
		437	=item cf::post_init { BLOCK }
		438
		439	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		440	but I<before> the server starts ticking again.
		441
		442	The codeblock will have a single boolean argument to indicate whether this
		443	is a reload or not.
		444
		445	=cut
		446
		447	sub post_init(&) {
		448	push @POST_INIT, shift;
		449	}
		450
		451	sub _post_init {
		452	trace "running post_init jobs";
		453
		454	# run them in parallel...
		455
		456	my @join;
		457
		458	while () {
		459	push @join, map &Coro::async ($_, 0), @POST_INIT;
		460	@POST_INIT = ();
		461
		462	@join or last;
		463
		464	(pop @join)->join;
		465	}
182	}	466	}
183		467
184	=item cf::lock_wait $string	468	=item cf::lock_wait $string
185		469
186	Wait until the given lock is available. See cf::lock_acquire.	470	Wait until the given lock is available. See cf::lock_acquire.
187		471
188	=item my $lock = cf::lock_acquire $string	472	=item my $lock = cf::lock_acquire $string
189		473
190	Wait until the given lock is available and then acquires it and returns	474	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	475	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	476	for example when the coroutine gets canceled), the lock is automatically
193	returned.	477	returned.
194		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
195	Lock names should begin with a unique identifier (for example, cf::map::find	482	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	483	uses map_find and cf::map::load uses map_load).
197		484
198	=cut	485	=item $locked = cf::lock_active $string
199		486
200	our %LOCK;	487	Return true if the lock is currently active, i.e. somebody has locked it.
		488
		489	=cut
		490
		491	our $LOCKS = new Coro::SemaphoreSet;
201		492
202	sub lock_wait($) {	493	sub lock_wait($) {
203	my ($key) = @_;	494	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	495	}
211		496
212	sub lock_acquire($) {	497	sub lock_acquire($) {
213	my ($key) = @_;	498	$LOCKS->guard ($_[0])
		499	}
214		500
215	# wait, to be sure we are not locked	501	sub lock_active($) {
216	lock_wait $key;	502	$LOCKS->count ($_[0]) < 1
		503	}
217		504
218	$LOCK{$key} = [];	505	sub freeze_mainloop {
		506	tick_inhibit_inc;
219		507
220	Coro::guard {	508	&Guard::guard (\&tick_inhibit_dec);
221	# wake up all waiters, to be on the safe side	509	}
222	$_->ready for @{ delete $LOCK{$key} };	510
		511	=item cf::periodic $interval, $cb
		512
		513	Like EV::periodic, but randomly selects a starting point so that the actions
		514	get spread over time.
		515
		516	=cut
		517
		518	sub periodic($$) {
		519	my ($interval, $cb) = @_;
		520
		521	my $start = rand List::Util::min 180, $interval;
		522
		523	EV::periodic $start, $interval, 0, $cb
		524	}
		525
		526	=item cf::get_slot $time[, $priority[, $name]]
		527
		528	Allocate $time seconds of blocking CPU time at priority C<$priority>
		529	(default: 0): This call blocks and returns only when you have at least
		530	C<$time> seconds of cpu time till the next tick. The slot is only valid
		531	till the next cede.
		532
		533	Background jobs should use a priority les than zero, interactive jobs
		534	should use 100 or more.
		535
		536	The optional C<$name> can be used to identify the job to run. It might be
		537	used for statistical purposes and should identify the same time-class.
		538
		539	Useful for short background jobs.
		540
		541	=cut
		542
		543	our @SLOT_QUEUE;
		544	our $SLOT_QUEUE;
		545	our $SLOT_DECAY = 0.9;
		546
		547	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		548	$SLOT_QUEUE = Coro::async {
		549	$Coro::current->desc ("timeslot manager");
		550
		551	my $signal = new Coro::Signal;
		552	my $busy;
		553
		554	while () {
		555	next_job:
		556
		557	my $avail = cf::till_tick;
		558
		559	for (0 .. $#SLOT_QUEUE) {
		560	if ($SLOT_QUEUE[$_][0] <= $avail) {
		561	$busy = 0;
		562	my $job = splice @SLOT_QUEUE, $_, 1, ();
		563	$job->[2]->send;
		564	Coro::cede;
		565	goto next_job;
		566	} else {
		567	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		568	}
		569	}
		570
		571	if (@SLOT_QUEUE) {
		572	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		573	$WAIT_FOR_TICK->wait;
		574	} else {
		575	$busy = 0;
		576	Coro::schedule;
		577	}
223	}	578	}
		579	};
		580
		581	sub get_slot($;$$) {
		582	return if tick_inhibit || $Coro::current == $Coro::main;
		583
		584	my ($time, $pri, $name) = @_;
		585
		586	$time = clamp $time, 0.01, $TICK * .6;
		587
		588	my $sig = new Coro::Signal;
		589
		590	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		591	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		592	$SLOT_QUEUE->ready;
		593	$sig->wait;
224	}	594	}
225		595
226	=item cf::async { BLOCK }	596	=item cf::async { BLOCK }
227		597
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	598	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	599	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		600	thing you are allowed to do is call C<prio> on it.
230		601
231	=cut	602	=cut
232		603
233	sub async(&) {	604	BEGIN { *async = \&Coro::async_pool }
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;
244
245	my $guard = Coro::guard { $TICK_WATCHER->start };
246	$TICK_WATCHER->stop;
247	$guard
248	}
249		605
250	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
251		607
252	The design of crossfire+ requires that the main coro ($Coro::main) is	608	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	609	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	610	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		611	acceptable.
255		612
256	If it must be done, put the blocking parts into C<sync_job>. This will run	613	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	614	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	615	server will be frozen during this time, so the block should either finish
259	fast or be very important.	616	fast or be very important.
…		…
261	=cut	618	=cut
262		619
263	sub sync_job(&) {	620	sub sync_job(&) {
264	my ($job) = @_;	621	my ($job) = @_;
265		622
266	if ($Coro::current == $Coro::main) {	623	if (in_main) {
		624	my $time = AE::time;
		625
267	# this is the main coro, too bad, we have to block	626	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	627	# till the operation succeeds, freezing the server :/
269		628
270	# TODO: use suspend/resume instead	629	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	630
272	my $freeze_guard = freeze_mainloop;	631	my $freeze_guard = freeze_mainloop;
273		632
274	my $busy = 1;	633	my $busy = 1;
275	my @res;	634	my @res;
276		635
277	(Coro::async {	636	(async {
		637	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	638	@res = eval { $job->() };
279	warn $@ if $@;	639	error $@ if $@;
280	undef $busy;	640	undef $busy;
281	})->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
282		642
283	while ($busy) {	643	while ($busy) {
		644	if (Coro::nready) {
284	Coro::cede_notself;	645	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
286	}	648	}
		649	}
		650
		651	my $time = AE::time - $time;
		652
		653	$TICK_START += $time; # do not account sync jobs to server load
287		654
288	wantarray ? @res : $res[0]	655	wantarray ? @res : $res[0]
289	} else {	656	} else {
290	# we are in another coroutine, how wonderful, everything just works	657	# we are in another coroutine, how wonderful, everything just works
291		658
292	$job->()	659	$job->()
293	}	660	}
294	}	661	}
295		662
296	=item $coro = cf::coro { BLOCK }	663	=item $coro = cf::async_ext { BLOCK }
297		664
298	Creates and returns a new coro. This coro is automcatially being canceled	665	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	666	extension calling this is being unloaded.
300		667
301	=cut	668	=cut
302		669
303	sub coro(&) {	670	sub async_ext(&) {
304	my $cb = shift;	671	my $cb = shift;
305		672
306	my $coro = &cf::async ($cb);	673	my $coro = &Coro::async ($cb);
307		674
308	$coro->on_destroy (sub {	675	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	676	delete $EXT_CORO{$coro+0};
310	});	677	});
311	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
312		679
313	$coro	680	$coro
314	}	681	}
315		682
316	sub write_runtime {	683	=item fork_call { }, @args
317	my $runtime = cf::localdir . "/runtime";
318		684
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	685	Executes the given code block with the given arguments in a seperate
320	or return;	686	process, returning the results. Everything must be serialisable with
		687	Coro::Storable. May, of course, block. Note that the executed sub may
		688	never block itself or use any form of event handling.
321		689
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	690	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		691
326	aio_fsync $fh	692	sub post_fork {
327	and return;	693	reset_signals;
		694	}
328		695
329	close $fh	696	sub fork_call(&@) {
330	or return;	697	my ($cb, @args) = @_;
331		698
332	aio_rename "$runtime~", $runtime	699	# we seemingly have to make a local copy of the whole thing,
333	and return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
334		702
		703	my @res = Coro::Util::fork_eval {
		704	cf::post_fork;
		705	&$cb
		706	} @args;
		707
		708	wantarray ? @res : $res[-1]
		709	}
		710
		711	sub objinfo {
335	1	712	(
		713	"counter value" => cf::object::object_count,
		714	"objects created" => cf::object::create_count,
		715	"objects destroyed" => cf::object::destroy_count,
		716	"freelist size" => cf::object::free_count,
		717	"allocated objects" => cf::object::objects_size,
		718	"active objects" => cf::object::actives_size,
		719	)
		720	}
		721
		722	=item $coin = coin_from_name $name
		723
		724	=cut
		725
		726	our %coin_alias = (
		727	"silver" => "silvercoin",
		728	"silvercoin" => "silvercoin",
		729	"silvercoins" => "silvercoin",
		730	"gold" => "goldcoin",
		731	"goldcoin" => "goldcoin",
		732	"goldcoins" => "goldcoin",
		733	"platinum" => "platinacoin",
		734	"platinumcoin" => "platinacoin",
		735	"platinumcoins" => "platinacoin",
		736	"platina" => "platinacoin",
		737	"platinacoin" => "platinacoin",
		738	"platinacoins" => "platinacoin",
		739	"royalty" => "royalty",
		740	"royalties" => "royalty",
		741	);
		742
		743	sub coin_from_name($) {
		744	$coin_alias{$_[0]}
		745	? cf::arch::find $coin_alias{$_[0]}
		746	: undef
		747	}
		748
		749	=item $value = cf::db_get $family => $key
		750
		751	Returns a single value from the environment database.
		752
		753	=item cf::db_put $family => $key => $value
		754
		755	Stores the given C<$value> in the family. It can currently store binary
		756	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		757
		758	=item $db = cf::db_table "name"
		759
		760	Create and/or open a new database table. The string must not be "db" and must be unique
		761	within each server.
		762
		763	=cut
		764
		765	sub db_table($) {
		766	cf::error "db_get called from main context"
		767	if $Coro::current == $Coro::main;
		768
		769	my ($name) = @_;
		770	my $db = BDB::db_create $DB_ENV;
		771
		772	eval {
		773	$db->set_flags (BDB::CHKSUM);
		774
		775	utf8::encode $name;
		776	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		777	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		778	cf::cleanup "db_open(db): $!" if $!;
		779	};
		780	cf::cleanup "db_open(db): $@" if $@;
		781
		782	$db
		783	}
		784
		785	our $DB;
		786
		787	sub db_init {
		788	$DB ||= db_table "db";
		789	}
		790
		791	sub db_get($$) {
		792	my $key = "$_[0]/$_[1]";
		793
		794	cf::error "db_get called from main context"
		795	if $Coro::current == $Coro::main;
		796
		797	BDB::db_get $DB, undef, $key, my $data;
		798
		799	$! ? ()
		800	: $data
		801	}
		802
		803	sub db_put($$$) {
		804	BDB::dbreq_pri 4;
		805	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		806	}
		807
		808	=item cf::cache $id => [$paths...], $processversion => $process
		809
		810	Generic caching function that returns the value of the resource $id,
		811	caching and regenerating as required.
		812
		813	This function can block.
		814
		815	=cut
		816
		817	sub cache {
		818	my ($id, $src, $processversion, $process) = @_;
		819
		820	my $meta =
		821	join "\x00",
		822	$processversion,
		823	map {
		824	aio_stat $_
		825	and Carp::croak "$_: $!";
		826
		827	($_, (stat _)[7,9])
		828	} @$src;
		829
		830	my $dbmeta = db_get cache => "$id/meta";
		831	if ($dbmeta ne $meta) {
		832	# changed, we may need to process
		833
		834	my @data;
		835	my $md5;
		836
		837	for (0 .. $#$src) {
		838	$data[$_] = load_file $src->[$_];
		839	}
		840
		841	# if processing is expensive, check
		842	# checksum first
		843	if (1) {
		844	$md5 =
		845	join "\x00",
		846	$processversion,
		847	map {
		848	cf::cede_to_tick;
		849	($src->[$_], Digest::MD5::md5_hex $data[$_])
		850	} 0.. $#$src;
		851
		852
		853	my $dbmd5 = db_get cache => "$id/md5";
		854	if ($dbmd5 eq $md5) {
		855	db_put cache => "$id/meta", $meta;
		856
		857	return db_get cache => "$id/data";
		858	}
		859	}
		860
		861	my $t1 = Time::HiRes::time;
		862	my $data = $process->(\@data);
		863	my $t2 = Time::HiRes::time;
		864
		865	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		866
		867	db_put cache => "$id/data", $data;
		868	db_put cache => "$id/md5" , $md5;
		869	db_put cache => "$id/meta", $meta;
		870
		871	return $data;
		872	}
		873
		874	db_get cache => "$id/data"
		875	}
		876
		877	=item cf::datalog type => key => value, ...
		878
		879	Log a datalog packet of the given type with the given key-value pairs.
		880
		881	=cut
		882
		883	sub datalog($@) {
		884	my ($type, %kv) = @_;
		885	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	886	}
337		887
338	=back	888	=back
339		889
340	=cut	890	=cut
341		891
342	#############################################################################	892	#############################################################################
343		893
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461
462	#############################################################################
463
464	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
465		895
466	Many objects in crossfire are so-called attachable objects. That means you can	896	Many objects in deliantra are so-called attachable objects. That means you can
467	attach callbacks/event handlers (a collection of which is called an "attachment")	897	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
469		899
470	In the following description, CLASS can be any of C<global>, C<object>	900	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	901	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	902	Deliantra).
473		903
474	=over 4	904	=over 4
475		905
476	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
477		907
…		…
521	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
522		952
523	Register an attachment by C<$name> through which attachable objects of the	953	Register an attachment by C<$name> through which attachable objects of the
524	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
525		955
526	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
527	that are attached at load/instantiate time, thus the need for a name.	957	that are attached at load/instantiate time, thus the need for a name.
528		958
529	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
530		960
531	=over 4	961	=over 4
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	1022	our @CB_MAP = ();
593		1023
594	my %attachment;	1024	my %attachment;
595		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
596	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
598		1034
599	use sort 'stable';	1035	use sort 'stable';
600		1036
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
635		1071
636	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		1076
641	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
643		1079
644	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
649		1085
650	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
651	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
652		1088
653	} elsif (ref $type) {	1089	} elsif (ref $type) {
654	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
655		1091
656	} else {	1092	} else {
657	shift @arg;	1093	shift @arg;
658	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
659	}	1095	}
660	}	1096	}
661	}	1097	}
662		1098
663	sub _object_attach {	1099	sub _object_attach {
…		…
673	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
674	}	1110	}
675		1111
676	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
677	} else {	1113	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
679	}	1115	}
680		1116
681	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
682	}	1118	}
683		1119
…		…
685	if (ref $_[0]) {	1121	if (ref $_[0]) {
686	_object_attach @_;	1122	_object_attach @_;
687	} else {	1123	} else {
688	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
689	}	1125	}
		1126	_recalc_want;
690	};	1127	};
691		1128
692	# all those should be optimised	1129	# all those should be optimised
693	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
698	reattach ($obj);	1135	reattach ($obj);
699	} else {	1136	} else {
700	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
701	}	1138	}
		1139	_recalc_want;
702	};	1140	};
703		1141
704	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
706		1144
…		…
721	";	1159	";
722	die if $@;	1160	die if $@;
723	}	1161	}
724		1162
725	our $override;	1163	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1164	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		1165
728	sub override {	1166	sub override {
729	$override = 1;	1167	$override = 1;
730	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
731	}	1169	}
732		1170
733	sub do_invoke {	1171	sub do_invoke {
734	my $event = shift;	1172	my $event = shift;
735	my $callbacks = shift;	1173	my $callbacks = shift;
736		1174
737	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
738		1176
739	local $override;	1177	local $override;
740		1178
741	for (@$callbacks) {	1179	for (@$callbacks) {
742	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
743		1181
744	if ($@) {	1182	if ($@) {
745	warn "$@";
746	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
747	override;	1184	override;
748	}	1185	}
749		1186
750	return 1 if $override;	1187	return 1 if $override;
751	}	1188	}
752		1189
753	0	1190	0
754	}	1191	}
755		1192
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1194
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1196
760	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
761		1198
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1199	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	1200	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1202
766	=back	1203	=back
767		1204
768	=cut	1205	=cut
769		1206
770	#############################################################################	1207	#############################################################################
771	# object support	1208	# object support
		1209
		1210	sub _object_equal($$);
		1211	sub _object_equal($$) {
		1212	my ($a, $b) = @_;
		1213
		1214	return 0 unless (ref $a) eq (ref $b);
		1215
		1216	if ("HASH" eq ref $a) {
		1217	my @ka = keys %$a;
		1218	my @kb = keys %$b;
		1219
		1220	return 0 if @ka != @kb;
		1221
		1222	for (0 .. $#ka) {
		1223	return 0 unless $ka[$_] eq $kb[$_];
		1224	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1225	}
		1226
		1227	} elsif ("ARRAY" eq ref $a) {
		1228
		1229	return 0 if @$a != @$b;
		1230
		1231	for (0 .. $#$a) {
		1232	return 0 unless _object_equal $a->[$_], $b->[$_];
		1233	}
		1234
		1235	} elsif ($a ne $b) {
		1236	return 0;
		1237	}
		1238
		1239	1
		1240	}
		1241
		1242	our $SLOW_MERGES;#d#
		1243	sub _can_merge {
		1244	my ($ob1, $ob2) = @_;
		1245
		1246	++$SLOW_MERGES;#d#
		1247
		1248	# we do the slow way here
		1249	return _object_equal $ob1, $ob2
		1250	}
772		1251
773	sub reattach {	1252	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1254	my ($obj) = @_;
		1255
		1256	# no longer needed after getting rid of delete_package?
		1257	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1258
777	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
778		1260
779	@$registry = ();	1261	@$registry = ();
780		1262
…		…
785	for (@$attach) {	1267	for (@$attach) {
786	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
787	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
788	}	1270	}
789	} else {	1271	} else {
790	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
791	}	1273	}
792	}	1274	}
793	}	1275	}
794		1276
795	cf::attachable->attach (	1277	cf::attachable->attach (
796	prio => -1000000,	1278	prio => -1000000,
797	on_instantiate => sub {	1279	on_instantiate => sub {
798	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
799		1281
800	$data = from_json $data;	1282	$data = decode_json $data;
801		1283
802	for (@$data) {	1284	for (@$data) {
803	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
804		1286
805	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1303	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
823		1305
824	sync_job {	1306	sync_job {
825	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
828		1312
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1315	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1316	if ($cf::USE_FSYNC) {
		1317	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;
832	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
833	close $fh;	1320	aio_close $fh;
834		1321
835	if (@$objs) {	1322	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1323	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1326	aio_write $fh, 0, (length $data), $data, 0;
		1327	if ($cf::USE_FSYNC) {
		1328	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;
840	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
841	close $fh;	1331	aio_close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
843	}	1333	}
844	} else {	1334	} else {
845	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
846	}	1336	}
847		1337
848	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
849	} else {	1342	} else {
850	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
851	}	1344	}
852	} else {	1345	} else {
853	aio_unlink $filename;	1346	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
855	}	1348	}
856	}	1349	};
857	}	1350	}
858		1351
859	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
861		1354
…		…
873	or return;	1366	or return;
874		1367
875	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
877	or return;	1370	or return;
		1371
878	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
879	}	1374	}
880		1375
		1376	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
883	return ($data, $av);	1381	($data, $av)
884	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
885		1389
886	#############################################################################	1390	#############################################################################
887	# command handling &c	1391	# command handling &c
888		1392
889	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1407	}
904		1408
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1410
907	Register a callbackf ro execution when the client sends an extcmd packet.	1411	Register a callback for execution when the client sends an (synchronous)
		1412	extcmd packet. Ext commands will be processed in the order they are
		1413	received by the server, like other user commands. The first argument is
		1414	the logged-in player. Ext commands can only be processed after a player
		1415	has logged in successfully.
908		1416
909	If the callback returns something, it is sent back as if reply was being	1417	If the callback returns something, it is sent back as if reply was being
910	called.	1418	called.
911		1419
		1420	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1421
		1422	Register a callback for execution when the client sends an (asynchronous)
		1423	exticmd packet. Exti commands are processed by the server as soon as they
		1424	are received, i.e. out of order w.r.t. other commands. The first argument
		1425	is a client socket. Exti commands can be received anytime, even before
		1426	log-in.
		1427
		1428	If the callback returns something, it is sent back as if reply was being
		1429	called.
		1430
912	=cut	1431	=cut
913		1432
914	sub register_extcmd {	1433	sub register_extcmd {
915	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
916		1435
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1436	$EXTCMD{$name} = $cb;
921	}	1437	}
		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
922		1446
923	cf::player->attach (	1447	cf::player->attach (
924	on_command => sub {	1448	on_unknown_command => sub {
925	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
926		1450
927	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
928	or return;	1452	or return;
929		1453
…		…
934	cf::override;	1458	cf::override;
935	},	1459	},
936	on_extcmd => sub {	1460	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
938		1462
939	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1464
941	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) =
		1467	"ARRAY" eq ref $msg
		1468	? @$msg
		1469	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1470
		1471	my @reply;
		1472
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1473	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1474	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1475	}
		1476
		1477	$pl->ext_reply ($reply, @reply)
		1478	if $reply;
		1479
947	} else {	1480	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1481	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1482	}
950		1483
951	cf::override;	1484	cf::override;
952	},	1485	},
953	);	1486	);
954		1487
955	sub register {	1488	# "readahead" all extensions
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1489	sub cache_extensions {
962	my ($path) = @_;	1490	my $grp = IO::AIO::aio_group;
963		1491
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1492	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
965	my $base = $1;	1493	for (grep /\.ext$/, @{$_[0]}) {
966	my $pkg = $1;	1494	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969
970	warn "loading '$path' into '$pkg'\n";
971
972	open my $fh, "<:utf8", $path
973	or die "$path: $!";
974
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }
1004
1005	# remove commands
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}	1495	}
1014	}	1496	};
1015		1497
1016	# remove extcmds	1498	$grp
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	1499	}
1030		1500
1031	sub load_extensions {	1501	sub load_extensions {
		1502	info "loading extensions...";
		1503
		1504	cf::sync_job {
		1505	my %todo;
		1506
1032	for my $ext (<$LIBDIR/*.ext>) {	1507	for my $path (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	1508	next unless -r $path;
1034	eval {	1509
1035	load_extension $ext;	1510	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1511	my $base = $1;
		1512	my $pkg = $1;
		1513	$pkg =~ s/[^[:word:]]/_/g;
		1514	$pkg = "ext::$pkg";
		1515
		1516	open my $fh, "<:utf8", $path
		1517	or die "$path: $!";
		1518
		1519	my $source = do { local $/; <$fh> };
		1520
		1521	my %ext = (
		1522	path => $path,
		1523	base => $base,
		1524	pkg => $pkg,
		1525	);
		1526
		1527	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1528	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1529
		1530	$ext{source} =
		1531	"package $pkg; use common::sense;\n"
		1532	. "#line 1 \"$path\"\n{\n"
		1533	. $source
		1534	. "\n};\n1";
		1535
		1536	$todo{$base} = \%ext;
		1537	}
		1538
		1539	my $pass = 0;
		1540	my %done;
		1541	while (%todo) {
		1542	my $progress;
		1543
		1544	++$pass;
		1545
		1546	ext:
		1547	while (my ($k, $v) = each %todo) {
		1548	for (split /,\s*/, $v->{meta}{depends}) {
		1549	next ext
		1550	unless exists $done{$_};
		1551	}
		1552
		1553	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1554
		1555	my $active = eval $v->{source};
		1556
		1557	if (length $@) {
		1558	error "$v->{path}: $@\n";
		1559
		1560	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1561	if exists $v->{meta}{mandatory};
		1562
		1563	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1564	delete $todo{$k};
		1565	} else {
		1566	$done{$k} = delete $todo{$k};
		1567	push @EXTS, $v->{pkg};
		1568	$progress = 1;
		1569
		1570	info "$v->{base}: extension inactive.\n"
		1571	unless $active;
		1572	}
1036	1	1573	}
1037	} or warn "$ext not loaded: $@";	1574
		1575	unless ($progress) {
		1576	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1577
		1578	while (my ($k, $v) = each %todo) {
		1579	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1580	if exists $v->{meta}{mandatory};
		1581	}
		1582
		1583	last;
		1584	}
		1585	}
1038	}	1586	};
1039	}	1587	}
1040		1588
1041	#############################################################################	1589	#############################################################################
1042	# load/save/clean perl data associated with a map
1043		1590
1044	*cf::mapsupport::on_clean = sub {	1591	=back
		1592
		1593	=head2 CORE EXTENSIONS
		1594
		1595	Functions and methods that extend core deliantra objects.
		1596
		1597	=cut
		1598
		1599	package cf::player;
		1600
		1601	use Coro::AIO;
		1602
		1603	=head3 cf::player
		1604
		1605	=over 4
		1606
		1607	=item cf::player::num_playing
		1608
		1609	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1610
		1611	=cut
		1612
		1613	sub num_playing {
		1614	scalar grep
		1615	$_->ob->map
		1616	&& !$_->hidden
		1617	&& !$_->ob->flag (cf::FLAG_WIZ),
		1618	cf::player::list
		1619	}
		1620
		1621	=item cf::player::find $login
		1622
		1623	Returns the given player object, loading it if necessary (might block).
		1624
		1625	=cut
		1626
		1627	sub playerdir($) {
		1628	"$PLAYERDIR/"
		1629	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1630	}
		1631
		1632	sub path($) {
		1633	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1634
		1635	(playerdir $login) . "/playerdata"
		1636	}
		1637
		1638	sub find_active($) {
		1639	$cf::PLAYER{$_[0]}
		1640	and $cf::PLAYER{$_[0]}->active
		1641	and $cf::PLAYER{$_[0]}
		1642	}
		1643
		1644	sub exists($) {
1045	my ($map) = @_;	1645	my ($login) = @_;
1046		1646
1047	my $path = $map->tmpname;	1647	$cf::PLAYER{$login}
1048	defined $path or return;	1648	or !aio_stat path $login
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}	1649	}
1061		1650
1062	# TODO: compatibility cruft, remove when no longer needed	1651	sub find($) {
		1652	return $cf::PLAYER{$_[0]} || do {
		1653	my $login = $_[0];
		1654
		1655	my $guard = cf::lock_acquire "user_find:$login";
		1656
		1657	$cf::PLAYER{$_[0]} || do {
		1658	# rename old playerfiles to new ones
		1659	#TODO: remove when no longer required
		1660	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1661	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1662	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1663	aio_unlink +(playerdir $login) . "/$login.pl";
		1664
		1665	my $f = new_from_file cf::object::thawer path $login
		1666	or return;
		1667
		1668	my $pl = cf::player::load_pl $f
		1669	or return;
		1670
		1671	local $cf::PLAYER_LOADING{$login} = $pl;
		1672	$f->resolve_delayed_derefs;
		1673	$cf::PLAYER{$login} = $pl
		1674	}
		1675	}
		1676	}
		1677
1063	cf::player->attach (	1678	cf::player->attach (
1064	on_load => sub {	1679	on_load => sub {
1065	my ($pl, $path) = @_;	1680	my ($pl, $path) = @_;
1066		1681
1067	for my $o (all_objects $pl->ob) {	1682	# restore slots saved in save, below
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1683	my $slots = delete $pl->{_slots};
1069	$o->set_ob_key_value ("_perl_data");
1070		1684
1071	%$o = %{ Storable::thaw pack "H*", $value };	1685	$pl->ob->current_weapon ($slots->[0]);
1072	}	1686	$pl->combat_ob ($slots->[1]);
1073	}	1687	$pl->ranged_ob ($slots->[2]);
1074	},	1688	},
1075	);	1689	);
1076		1690
1077	#############################################################################	1691	sub save($) {
		1692	my ($pl) = @_;
1078		1693
1079	=head2 CORE EXTENSIONS	1694	return if $pl->{deny_save};
1080		1695
1081	Functions and methods that extend core crossfire objects.	1696	my $path = path $pl;
		1697	my $guard = cf::lock_acquire "user_save:$path";
1082		1698
1083	=head3 cf::player	1699	return if $pl->{deny_save};
		1700
		1701	aio_mkdir playerdir $pl, 0770;
		1702	$pl->{last_save} = $cf::RUNTIME;
		1703
		1704	cf::get_slot 0.01;
		1705
		1706	# save slots, to be restored later
		1707	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1708
		1709	$pl->save_pl ($path);
		1710	cf::cede_to_tick;
		1711	}
		1712
		1713	sub new($) {
		1714	my ($login) = @_;
		1715
		1716	my $self = create;
		1717
		1718	$self->ob->name ($login);
		1719	$self->{deny_save} = 1;
		1720
		1721	$cf::PLAYER{$login} = $self;
		1722
		1723	$self
		1724	}
		1725
		1726	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1727
		1728	=cut
		1729
		1730	sub send_msg {
		1731	my $ns = shift->ns
		1732	or return;
		1733	$ns->send_msg (@_);
		1734	}
		1735
		1736	=item $pl->quit_character
		1737
		1738	Nukes the player without looking back. If logged in, the connection will
		1739	be destroyed. May block for a long time.
		1740
		1741	=cut
		1742
		1743	sub quit_character {
		1744	my ($pl) = @_;
		1745
		1746	my $name = $pl->ob->name;
		1747
		1748	$pl->{deny_save} = 1;
		1749	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1750
		1751	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1752	$pl->deactivate;
		1753
		1754	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1755	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1756	ext::highscore::check ($pl->ob);
		1757
		1758	$pl->ns->destroy if $pl->ns;
		1759
		1760	my $path = playerdir $pl;
		1761	my $temp = "$path~$cf::RUNTIME~deleting~";
		1762	aio_rename $path, $temp;
		1763	delete $cf::PLAYER{$pl->ob->name};
		1764	$pl->destroy;
		1765
		1766	my $prefix = qr<^~\Q$name\E/>;
		1767
		1768	# nuke player maps
		1769	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1770
		1771	IO::AIO::aio_rmtree $temp;
		1772	}
		1773
		1774	=item $pl->kick
		1775
		1776	Kicks a player out of the game. This destroys the connection.
		1777
		1778	=cut
		1779
		1780	sub kick {
		1781	my ($pl, $kicker) = @_;
		1782
		1783	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1784	$pl->killer ("kicked");
		1785	$pl->ns->destroy;
		1786	}
		1787
		1788	=item cf::player::list_logins
		1789
		1790	Returns am arrayref of all valid playernames in the system, can take a
		1791	while and may block, so not sync_job-capable, ever.
		1792
		1793	=cut
		1794
		1795	sub list_logins {
		1796	my $dirs = aio_readdir $PLAYERDIR
		1797	or return [];
		1798
		1799	my @logins;
		1800
		1801	for my $login (@$dirs) {
		1802	my $path = path $login;
		1803
		1804	# a .pst is a dead give-away for a valid player
		1805	# if no pst file found, open and chekc for blocked users
		1806	if (aio_stat "$path.pst") {
		1807	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1808	aio_read $fh, 0, 512, my $buf, 0 or next;
		1809	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1810	}
		1811
		1812	utf8::decode $login;
		1813	push @logins, $login;
		1814	}
		1815
		1816	\@logins
		1817	}
		1818
		1819	=item $player->maps
		1820
		1821	=item cf::player::maps $login
		1822
		1823	Returns an arrayref of map paths that are private for this
		1824	player. May block.
		1825
		1826	=cut
		1827
		1828	sub maps($) {
		1829	my ($pl) = @_;
		1830
		1831	$pl = ref $pl ? $pl->ob->name : $pl;
		1832
		1833	my $files = aio_readdir playerdir $pl
		1834	or return;
		1835
		1836	my @paths;
		1837
		1838	for (@$files) {
		1839	utf8::decode $_;
		1840	next if /\.(?:pl|pst)$/;
		1841	next unless /^$PATH_SEP/o;
		1842
		1843	push @paths, cf::map::normalise "~$pl/$_";
		1844	}
		1845
		1846	\@paths
		1847	}
		1848
		1849	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1850
		1851	Expand deliantra pod fragments into protocol xml.
		1852
		1853	=item $player->ext_reply ($msgid, @msg)
		1854
		1855	Sends an ext reply to the player.
		1856
		1857	=cut
		1858
		1859	sub ext_reply($$@) {
		1860	my ($self, $id, @msg) = @_;
		1861
		1862	$self->ns->ext_reply ($id, @msg)
		1863	}
		1864
		1865	=item $player->ext_msg ($type, @msg)
		1866
		1867	Sends an ext event to the client.
		1868
		1869	=cut
		1870
		1871	sub ext_msg($$@) {
		1872	my ($self, $type, @msg) = @_;
		1873
		1874	$self->ns->ext_msg ($type, @msg);
		1875	}
		1876
		1877	=head3 cf::region
1084		1878
1085	=over 4	1879	=over 4
1086		1880
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut	1881	=cut
1092		1882
1093	sub cf::player::exists($) {	1883	package cf::region;
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097		1884
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1885	=item cf::region::find_by_path $path
1099		1886
1100	Sends an ext reply to the player.	1887	Tries to decuce the likely region for a map knowing only its path.
1101		1888
1102	=cut	1889	=cut
1103		1890
1104	sub cf::player::ext_reply($$$%) {	1891	sub find_by_path($) {
1105	my ($self, $id, %msg) = @_;	1892	my ($path) = @_;
1106		1893
1107	$msg{msgid} = $id;	1894	$path =~ s/^~[^\/]*//; # skip ~login
1108		1895
1109	$self->send ("ext " . to_json \%msg);	1896	my ($match, $specificity);
		1897
		1898	for my $region (list) {
		1899	if ($region->{match} && $path =~ $region->{match}) {
		1900	($match, $specificity) = ($region, $region->specificity)
		1901	if $region->specificity > $specificity;
		1902	}
		1903	}
		1904
		1905	$match
1110	}	1906	}
1111		1907
1112	=back	1908	=back
1113
1114		1909
1115	=head3 cf::map	1910	=head3 cf::map
1116		1911
1117	=over 4	1912	=over 4
1118		1913
…		…
1121	package cf::map;	1916	package cf::map;
1122		1917
1123	use Fcntl;	1918	use Fcntl;
1124	use Coro::AIO;	1919	use Coro::AIO;
1125		1920
		1921	use overload
		1922	'""' => \&as_string,
		1923	fallback => 1;
		1924
1126	our $MAX_RESET = 3600;	1925	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1926	our $DEFAULT_RESET = 3000;
1128		1927
1129	sub generate_random_map {	1928	sub generate_random_map {
		1929	my ($self, $rmp) = @_;
		1930
		1931	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1932
		1933	$self->_create_random_map ($rmp);
		1934	}
		1935
		1936	=item cf::map->register ($regex, $prio)
		1937
		1938	Register a handler for the map path matching the given regex at the
		1939	givne priority (higher is better, built-in handlers have priority 0, the
		1940	default).
		1941
		1942	=cut
		1943
		1944	sub register {
		1945	my (undef, $regex, $prio) = @_;
		1946	my $pkg = caller;
		1947
		1948	push @{"$pkg\::ISA"}, __PACKAGE__;
		1949
		1950	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1951	}
		1952
		1953	# also paths starting with '/'
		1954	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1955
		1956	sub thawer_merge {
		1957	my ($self, $merge) = @_;
		1958
		1959	# we have to keep some variables in memory intact
		1960	local $self->{path};
		1961	local $self->{load_path};
		1962
		1963	$self->SUPER::thawer_merge ($merge);
		1964	}
		1965
		1966	sub normalise {
1130	my ($path, $rmp) = @_;	1967	my ($path, $base) = @_;
1131		1968
1132	# mit "rum" bekleckern, nicht	1969	$path = "$path"; # make sure it's a string
1133	cf::map::_create_random_map	1970
		1971	$path =~ s/\.map$//;
		1972
		1973	# map plan:
		1974	#
		1975	# /! non-realised random map exit (special hack!)
		1976	# {... are special paths that are not being touched
		1977	# ?xxx/... are special absolute paths
		1978	# ?random/... random maps
		1979	# /... normal maps
		1980	# ~user/... per-player map of a specific user
		1981
		1982	$path =~ s/$PATH_SEP/\//go;
		1983
		1984	# treat it as relative path if it starts with
		1985	# something that looks reasonable
		1986	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1987	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1988
		1989	$base =~ s{[^/]+/?$}{};
		1990	$path = "$base/$path";
		1991	}
		1992
		1993	for ($path) {
		1994	redo if s{/\.?/}{/};
		1995	redo if s{/[^/]+/\.\./}{/};
		1996	}
		1997
1134	$path,	1998	$path
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})
1146	}	1999	}
1147		2000
1148	# and all this just because we cannot iterate over	2001	sub new_from_path {
1149	# all maps in C++...	2002	my (undef, $path, $base) = @_;
1150	sub change_all_map_light {	2003
		2004	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2005
		2006	$path = normalise $path, $base;
		2007
		2008	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2009	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2010	my $self = bless cf::map::new, $pkg;
		2011	$self->{path} = $path; $self->path ($path);
		2012	$self->init; # pass $1 etc.
		2013	return $self;
		2014	}
		2015	}
		2016
		2017	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2018	()
		2019	}
		2020
		2021	# may re-bless or do other evil things
		2022	sub init {
1151	my ($change) = @_;	2023	my ($self) = @_;
1152		2024
1153	$_->change_map_light ($change)	2025	$self
1154	for grep $_->outdoor, values %cf::MAP;
1155	}	2026	}
1156		2027
		2028	sub as_string {
		2029	my ($self) = @_;
		2030
		2031	"$self->{path}"
		2032	}
		2033
		2034	# the displayed name, this is a one way mapping
		2035	sub visible_name {
		2036	&as_string
		2037	}
		2038
		2039	# the original (read-only) location
		2040	sub load_path {
		2041	my ($self) = @_;
		2042
		2043	"$MAPDIR/$self->{path}.map"
		2044	}
		2045
		2046	# the temporary/swap location
		2047	sub save_path {
		2048	my ($self) = @_;
		2049
		2050	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2051	"$TMPDIR/$path.map"
		2052	}
		2053
		2054	# the unique path, undef == no special unique path
		2055	sub uniq_path {
		2056	my ($self) = @_;
		2057
		2058	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2059	"$UNIQUEDIR/$path"
		2060	}
		2061
		2062	sub decay_objects {
		2063	my ($self) = @_;
		2064
		2065	return if $self->{deny_reset};
		2066
		2067	$self->do_decay_objects;
		2068	}
		2069
		2070	sub unlink_save {
		2071	my ($self) = @_;
		2072
		2073	utf8::encode (my $save = $self->save_path);
		2074	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2075	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2076	}
		2077
1157	sub try_load_header($) {	2078	sub load_header_from($) {
1158	my ($path) = @_;	2079	my ($self, $path) = @_;
1159		2080
1160	utf8::encode $path;	2081	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	2082	my $f = new_from_file cf::object::thawer $path
1162	or return;	2083	or return;
1163		2084
1164	my $map = cf::map::new	2085	$self->_load_header ($f)
1165	or return;	2086	or return;
1166		2087
1167	# for better error messages only, will be overwritten	2088	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	2089	$f->resolve_delayed_derefs;
1169		2090
1170	$map->load_header ($path)	2091	$self->{load_path} = $path;
		2092
		2093	1
		2094	}
		2095
		2096	# used to laod the header of an original map
		2097	sub load_header_orig {
		2098	my ($self) = @_;
		2099
		2100	$self->load_header_from ($self->load_path)
		2101	}
		2102
		2103	# used to laod the header of an instantiated map
		2104	sub load_header_temp {
		2105	my ($self) = @_;
		2106
		2107	$self->load_header_from ($self->save_path)
		2108	}
		2109
		2110	# called after loading the header from an instantiated map
		2111	sub prepare_temp {
		2112	my ($self) = @_;
		2113
		2114	$self->last_access ((delete $self->{last_access})
		2115	|| $cf::RUNTIME); #d#
		2116	# safety
		2117	$self->{instantiate_time} = $cf::RUNTIME
		2118	if $self->{instantiate_time} > $cf::RUNTIME;
		2119	}
		2120
		2121	# called after loading the header from an original map
		2122	sub prepare_orig {
		2123	my ($self) = @_;
		2124
		2125	$self->{load_original} = 1;
		2126	$self->{instantiate_time} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
		2128	$self->instantiate;
		2129	}
		2130
		2131	sub load_header {
		2132	my ($self) = @_;
		2133
		2134	if ($self->load_header_temp) {
		2135	$self->prepare_temp;
		2136	} else {
		2137	$self->load_header_orig
1171	or return;	2138	or return;
		2139	$self->prepare_orig;
		2140	}
1172		2141
1173	$map->{load_path} = $path;	2142	$self->{deny_reset} = 1
		2143	if $self->no_reset;
1174		2144
1175	$map	2145	$self->default_region (cf::region::find_by_path $self->{path})
		2146	unless $self->default_region;
		2147
		2148	1
1176	}	2149	}
1177		2150
1178	sub find;	2151	sub find;
1179	sub find {	2152	sub find {
1180	my ($path, $origin) = @_;	2153	my ($path, $origin) = @_;
1181		2154
1182	#warn "find<$path,$origin>\n";#d#	2155	cf::cede_to_tick;
1183		2156
1184	$path = new cf::path $path, $origin && $origin->path;	2157	$path = normalise $path, $origin;
1185	my $key = $path->as_string;
1186		2158
1187	cf::lock_wait "map_find:$key";	2159	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2160	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2161
1192	# do it the slow way	2162	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2163	my $map = new_from_path cf::map $path
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	2164	or return;
1211		2165
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	2166	$map->{last_save} = $cf::RUNTIME;
1224		2167
1225	Coro::cede;	2168	$map->load_header
		2169	or return;
1226		2170
1227	if ($map->should_reset) {	2171	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2172	# doing this can freeze the server in a sync job, obviously
		2173	#$cf::WAIT_FOR_TICK->wait;
		2174	undef $guard2;
		2175	undef $guard1;
1228	$map->reset;	2176	$map->reset;
1229	undef $guard;
1230	$map = find $path	2177	return find $path;
1231	or return;
1232	}	2178	}
1233		2179
1234	$cf::MAP{$key} = $map	2180	$cf::MAP{$path} = $map
1235	}	2181	}
1236	}	2182	}
		2183
		2184	sub pre_load { }
		2185	#sub post_load { } # XS
1237		2186
1238	sub load {	2187	sub load {
1239	my ($self) = @_;	2188	my ($self) = @_;
1240		2189
		2190	local $self->{deny_reset} = 1; # loading can take a long time
		2191
1241	my $path = $self->{path};	2192	my $path = $self->{path};
		2193
		2194	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2195	my $guard = cf::lock_acquire "map_data:$path";
1243		2196
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2197	return unless $self->valid;
		2198	return unless $self->state == cf::MAP_SWAPPED;
1245		2199
1246	$self->in_memory (cf::MAP_LOADING);
1247
1248	$self->alloc;	2200	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2201
		2202	$self->pre_load;
		2203	cf::cede_to_tick;
		2204
		2205	if (exists $self->{load_path}) {
		2206	my $f = new_from_file cf::object::thawer $self->{load_path};
		2207	$f->skip_block;
		2208	$self->_load_objects ($f)
1250	or return;	2209	or return;
1251		2210
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2211	$self->post_load_original
1253	if delete $self->{load_original};	2212	if delete $self->{load_original};
1254		2213
1255	if (my $uniq = $path->uniq_path) {	2214	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2215	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2216	unless (aio_stat $uniq) {
		2217	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2218	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2219	$self->_load_objects ($f);
		2220	$f->resolve_delayed_derefs;
		2221	}
		2222	}
1260	}	2223	}
1261	}
1262		2224
1263	Coro::cede;	2225	$f->resolve_delayed_derefs;
		2226	} else {
		2227	$self->post_load_original
		2228	if delete $self->{load_original};
		2229	}
1264		2230
		2231	$self->state (cf::MAP_INACTIVE);
		2232
		2233	cf::cede_to_tick;
1265	# now do the right thing for maps	2234	# now do the right thing for maps
1266	$self->link_multipart_objects;	2235	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2236	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2237	unless $self->difficulty;
1278	$self->activate;	2238	cf::cede_to_tick;
		2239
		2240	unless ($self->{deny_activate}) {
		2241	$self->decay_objects;
		2242	$self->fix_auto_apply;
		2243	$self->update_buttons;
		2244	cf::cede_to_tick;
		2245	#$self->activate; # no longer activate maps automatically
		2246	}
		2247
		2248	$self->{last_save} = $cf::RUNTIME;
		2249	$self->last_access ($cf::RUNTIME);
		2250	}
		2251
		2252	$self->post_load;
		2253
1279	}	2254	1
		2255	}
1280		2256
1281	Coro::cede;	2257	# customize the map for a given player, i.e.
		2258	# return the _real_ map. used by e.g. per-player
		2259	# maps to change the path to ~playername/mappath
		2260	sub customise_for {
		2261	my ($self, $ob) = @_;
1282		2262
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2263	return find "~" . $ob->name . "/" . $self->{path}
		2264	if $self->per_player;
		2265
		2266	# return find "?party/" . $ob->name . "/" . $self->{path}
		2267	# if $self->per_party;
		2268
		2269	$self
1284	}	2270	}
1285		2271
1286	sub find_sync {	2272	sub find_sync {
1287	my ($path, $origin) = @_;	2273	my ($path, $origin) = @_;
1288		2274
1289	cf::sync_job { cf::map::find $path, $origin }	2275	# it's a bug to call this from the main context
		2276	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2277	if $Coro::current == $Coro::main;
		2278
		2279	find $path, $origin
1290	}	2280	}
1291		2281
1292	sub do_load_sync {	2282	sub do_load_sync {
1293	my ($map) = @_;	2283	my ($map) = @_;
1294		2284
1295	cf::sync_job { $map->load };	2285	# it's a bug to call this from the main context
		2286	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2287	if $Coro::current == $Coro::main;
		2288
		2289	$map->load;
		2290	}
		2291
		2292	our %MAP_PREFETCH;
		2293	our $MAP_PREFETCHER = undef;
		2294
		2295	sub find_async {
		2296	my ($path, $origin, $load) = @_;
		2297
		2298	$path = normalise $path, $origin;
		2299
		2300	if (my $map = $cf::MAP{$path}) {
		2301	return $map if !$load || $map->linkable;
		2302	}
		2303
		2304	$MAP_PREFETCH{$path} |= $load;
		2305
		2306	$MAP_PREFETCHER ||= cf::async {
		2307	$Coro::current->{desc} = "map prefetcher";
		2308
		2309	while (%MAP_PREFETCH) {
		2310	while (my ($k, $v) = each %MAP_PREFETCH) {
		2311	if (my $map = find $k) {
		2312	$map->load if $v;
		2313	}
		2314
		2315	delete $MAP_PREFETCH{$k};
		2316	}
		2317	}
		2318	undef $MAP_PREFETCHER;
		2319	};
		2320	$MAP_PREFETCHER->prio (6);
		2321
		2322	()
		2323	}
		2324
		2325	# common code, used by both ->save and ->swapout
		2326	sub _save {
		2327	my ($self) = @_;
		2328
		2329	$self->{last_save} = $cf::RUNTIME;
		2330
		2331	return unless $self->dirty;
		2332
		2333	my $save = $self->save_path; utf8::encode $save;
		2334	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2335
		2336	$self->{load_path} = $save;
		2337
		2338	return if $self->{deny_save};
		2339
		2340	local $self->{last_access} = $self->last_access;#d#
		2341
		2342	cf::async {
		2343	$Coro::current->{desc} = "map player save";
		2344	$_->contr->save for $self->players;
		2345	};
		2346
		2347	cf::get_slot 0.02;
		2348
		2349	if ($uniq) {
		2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2351	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2352	} else {
		2353	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2354	}
1296	}	2355	}
1297		2356
1298	sub save {	2357	sub save {
1299	my ($self) = @_;	2358	my ($self) = @_;
1300		2359
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2361
1303	$self->{last_save} = $cf::RUNTIME;	2362	$self->_save;
1304
1305	return unless $self->dirty;
1306
1307	my $save = $self->{path}->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1309
1310	$self->{load_path} = $save;
1311
1312	return if $self->{deny_save};
1313
1314	local $self->{last_access} = $self->last_access;#d#
1315
1316	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}
1322	}	2363	}
1323		2364
1324	sub swap_out {	2365	sub swap_out {
1325	my ($self) = @_;	2366	my ($self) = @_;
1326		2367
1327	# save first because save cedes
1328	$self->save;
1329
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2368	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2369
		2370	return if !$self->linkable;
		2371	return if $self->{deny_save};
1332	return if $self->players;	2372	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};
1335		2373
		2374	# first deactivate the map and "unlink" it from the core
		2375	$self->deactivate;
		2376	$_->clear_links_to ($self) for values %cf::MAP;
		2377	$self->state (cf::MAP_SWAPPED);
		2378
		2379	# then atomically save
		2380	$self->_save;
		2381
		2382	# then free the map
1336	$self->clear;	2383	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2384	}
1339		2385
1340	sub reset_at {	2386	sub reset_at {
1341	my ($self) = @_;	2387	my ($self) = @_;
1342		2388
1343	# TODO: safety, remove and allow resettable per-player maps	2389	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2390	return 1e99 if $self->{deny_reset};
1346		2391
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2392	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2393	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2394
…		…
1354	my ($self) = @_;	2399	my ($self) = @_;
1355		2400
1356	$self->reset_at <= $cf::RUNTIME	2401	$self->reset_at <= $cf::RUNTIME
1357	}	2402	}
1358		2403
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2404	sub reset {
1381	my ($self) = @_;	2405	my ($self) = @_;
1382		2406
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2407	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2408
1385	return if $self->players;	2409	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2410
1388	warn "resetting map ", $self->path;#d#	2411	cf::trace "resetting map ", $self->path, "\n";
		2412
		2413	$self->state (cf::MAP_SWAPPED);
		2414
		2415	# need to save uniques path
		2416	unless ($self->{deny_save}) {
		2417	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2418
		2419	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2420	if $uniq;
		2421	}
1389		2422
1390	delete $cf::MAP{$self->path};	2423	delete $cf::MAP{$self->path};
1391		2424
		2425	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2426	$_->clear_links_to ($self) for values %cf::MAP;
		2427	$self->clear;
1393		2428
1394	$self->unlink_save;	2429	$self->unlink_save;
1395	$self->destroy;	2430	$self->destroy;
1396	}	2431	}
1397		2432
1398	my $nuke_counter = "aaaa";	2433	my $nuke_counter = "aaaa";
1399		2434
1400	sub nuke {	2435	sub nuke {
1401	my ($self) = @_;	2436	my ($self) = @_;
1402		2437
		2438	{
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	delete $cf::MAP{$self->path};
		2442
		2443	$self->unlink_save;
		2444
		2445	bless $self, "cf::map::wrap";
		2446	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2447	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2448	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2449	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2450
		2451	$cf::MAP{$self->path} = $self;
		2452	}
		2453
1406	$self->reset; # polite request, might not happen	2454	$self->reset; # polite request, might not happen
1407	}	2455	}
1408		2456
1409	sub customise_for {	2457	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2458
1412	if ($map->per_player) {	2459	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2460	maps. May block.
		2461
		2462	=cut
		2463
		2464	sub tmp_maps() {
1414	}	2465	[
1415		2466	map {
1416	$map	2467	utf8::decode $_;
		2468	/\.map$/
		2469	? normalise $_
		2470	: ()
		2471	} @{ aio_readdir $TMPDIR or [] }
		2472	]
1417	}	2473	}
1418		2474
1419	sub emergency_save {	2475	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2476
1422	warn "enter emergency map save\n";	2477	Returns an arrayref with all map paths of currently instantiated and saved
		2478	random maps. May block.
1423		2479
1424	cf::sync_job {	2480	=cut
1425	warn "begin emergency map save\n";	2481
1426	$_->save for values %cf::MAP;	2482	sub random_maps() {
		2483	[
		2484	map {
		2485	utf8::decode $_;
		2486	/\.map$/
		2487	? normalise "?random/$_"
		2488	: ()
		2489	} @{ aio_readdir $RANDOMDIR or [] }
		2490	]
		2491	}
		2492
		2493	=item cf::map::unique_maps
		2494
		2495	Returns an arrayref of paths of all shared maps that have
		2496	instantiated unique items. May block.
		2497
		2498	=cut
		2499
		2500	sub unique_maps() {
		2501	[
		2502	map {
		2503	utf8::decode $_;
		2504	s/\.map$//; # TODO future compatibility hack
		2505	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2506	? ()
		2507	: normalise $_
		2508	} @{ aio_readdir $UNIQUEDIR or [] }
		2509	]
		2510	}
		2511
		2512	=item cf::map::static_maps
		2513
		2514	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2515	file in the shared directory excluding F</styles> and F</editor>). May
		2516	block.
		2517
		2518	=cut
		2519
		2520	sub static_maps() {
		2521	my @dirs = "";
		2522	my @maps;
		2523
		2524	while (@dirs) {
		2525	my $dir = shift @dirs;
		2526
		2527	next if $dir eq "/styles" || $dir eq "/editor";
		2528
		2529	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2530	or return;
		2531
		2532	for (@$files) {
		2533	s/\.map$// or next;
		2534	utf8::decode $_;
		2535	push @maps, "$dir/$_";
		2536	}
		2537
		2538	push @dirs, map "$dir/$_", @$dirs;
1427	};	2539	}
1428		2540
1429	warn "end emergency map save\n";	2541	\@maps
		2542	}
		2543
		2544	=back
		2545
		2546	=head3 cf::object
		2547
		2548	=cut
		2549
		2550	package cf::object;
		2551
		2552	=over 4
		2553
		2554	=item $ob->inv_recursive
		2555
		2556	Returns the inventory of the object I<and> their inventories, recursively,
		2557	but I<not> the object itself.
		2558
		2559	=cut
		2560
		2561	sub inv_recursive_;
		2562	sub inv_recursive_ {
		2563	map { $_, inv_recursive_ $_->inv } @_
		2564	}
		2565
		2566	sub inv_recursive {
		2567	inv_recursive_ inv $_[0]
		2568	}
		2569
		2570	=item $ref = $ob->ref
		2571
		2572	Creates and returns a persistent reference to an object that can be stored as a string.
		2573
		2574	=item $ob = cf::object::deref ($refstring)
		2575
		2576	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2577	even if the object actually exists. May block.
		2578
		2579	=cut
		2580
		2581	sub deref {
		2582	my ($ref) = @_;
		2583
		2584	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2585	my ($uuid, $name) = ($1, $2);
		2586	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2587	or return;
		2588	$pl->ob->uuid eq $uuid
		2589	or return;
		2590
		2591	$pl->ob
		2592	} else {
		2593	warn "$ref: cannot resolve object reference\n";
		2594	undef
		2595	}
1430	}	2596	}
1431		2597
1432	package cf;	2598	package cf;
1433		2599
1434	=back	2600	=back
1435
1436		2601
1437	=head3 cf::object::player	2602	=head3 cf::object::player
1438		2603
1439	=over 4	2604	=over 4
1440		2605
…		…
1443	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2608	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1444	can be C<undef>. Does the right thing when the player is currently in a	2609	can be C<undef>. Does the right thing when the player is currently in a
1445	dialogue with the given NPC character.	2610	dialogue with the given NPC character.
1446		2611
1447	=cut	2612	=cut
		2613
		2614	our $SAY_CHANNEL = {
		2615	id => "say",
		2616	title => "Map",
		2617	reply => "say ",
		2618	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2619	};
		2620
		2621	our $CHAT_CHANNEL = {
		2622	id => "chat",
		2623	title => "Chat",
		2624	reply => "chat ",
		2625	tooltip => "Player chat and shouts, global to the server.",
		2626	};
1448		2627
1449	# rough implementation of a future "reply" method that works	2628	# rough implementation of a future "reply" method that works
1450	# with dialog boxes.	2629	# with dialog boxes.
1451	#TODO: the first argument must go, split into a $npc->reply_to ( method	2630	#TODO: the first argument must go, split into a $npc->reply_to ( method
1452	sub cf::object::player::reply($$$;$) {	2631	sub cf::object::player::reply($$$;$) {
…		…
1454		2633
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2635
1457	if ($self->{record_replies}) {	2636	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2638
1459	} else {	2639	} else {
		2640	my $pl = $self->contr;
		2641
		2642	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2643	my $dialog = $pl->{npc_dialog};
		2644	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2645
		2646	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2647	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2648	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2649	}
1462	}	2650	}
		2651	}
		2652
		2653	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2654
		2655	=cut
		2656
		2657	sub cf::object::send_msg {
		2658	my $pl = shift->contr
		2659	or return;
		2660	$pl->send_msg (@_);
1463	}	2661	}
1464		2662
1465	=item $player_object->may ("access")	2663	=item $player_object->may ("access")
1466		2664
1467	Returns wether the given player is authorized to access resource "access"	2665	Returns wether the given player is authorized to access resource "access"
…		…
1480		2678
1481	=item $player_object->enter_link	2679	=item $player_object->enter_link
1482		2680
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2681	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2682
1485	The player should be reaosnably safe there for short amounts of time. You	2683	The player should be reasonably safe there for short amounts of time (e.g.
1486	I<MUST> call C<leave_link> as soon as possible, though.	2684	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2685	though, as the player cannot control the character while it is on the link
		2686	map.
		2687
		2688	Will never block.
1487		2689
1488	=item $player_object->leave_link ($map, $x, $y)	2690	=item $player_object->leave_link ($map, $x, $y)
1489		2691
1490	Moves the player out of the specila link map onto the given map. If the	2692	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2693	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2694	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2695	fails, to the emergency map position.
1494		2696
1495	Might block.	2697	Might block.
1496		2698
1497	=cut	2699	=cut
		2700
		2701	sub link_map {
		2702	unless ($LINK_MAP) {
		2703	$LINK_MAP = cf::map::find "{link}"
		2704	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2705	$LINK_MAP->load;
		2706	}
		2707
		2708	$LINK_MAP
		2709	}
1498		2710
1499	sub cf::object::player::enter_link {	2711	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2712	my ($self) = @_;
1501		2713
1502	$self->deactivate_recursive;	2714	$self->deactivate_recursive;
1503		2715
1504	return if $self->map == $LINK_MAP;	2716	++$self->{_link_recursion};
		2717
		2718	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2719
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2720	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2721	if $self->map && $self->map->{path} ne "{link}";
1508		2722
1509	$self->enter_map ($LINK_MAP, 20, 20);	2723	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1510	}	2724	}
1511		2725
1512	sub cf::object::player::leave_link {	2726	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2727	my ($self, $map, $x, $y) = @_;
		2728
		2729	return unless $self->contr->active;
1514		2730
1515	my $link_pos = delete $self->{_link_pos};	2731	my $link_pos = delete $self->{_link_pos};
1516		2732
1517	unless ($map) {	2733	unless ($map) {
1518	# restore original map position	2734	# restore original map position
…		…
1529	($x, $y) = (-1, -1)	2745	($x, $y) = (-1, -1)
1530	unless (defined $x) && (defined $y);	2746	unless (defined $x) && (defined $y);
1531		2747
1532	# use -1 or undef as default coordinates, not 0, 0	2748	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2749	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2750	if $x <= 0 && $y <= 0;
1535		2751
1536	$map->load;	2752	$map->load;
1537		2753
		2754	return unless $self->contr->active;
		2755
		2756	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2757	if ($self->enter_map ($map, $x, $y)) {
		2758	# entering was successful
		2759	delete $self->{_link_recursion};
		2760	# only activate afterwards, to support waiting in hooks
1538	$self->activate_recursive;	2761	$self->activate_recursive;
1539	$self->enter_map ($map, $x, $y);
1540	}
1541
1542	cf::player->attach (
1543	on_logout => sub {
1544	my ($pl) = @_;
1545
1546	# abort map switching before logout
1547	if ($pl->ob->{_link_pos}) {
1548	cf::sync_job {
1549	$pl->ob->leave_link
1550	};
1551	}
1552	},	2762	}
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2763
1556	# try to abort aborted map switching on player login :)	2764	}
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569		2765
1570	=item $player_object->goto ($path, $x, $y)	2766	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1571		2767
		2768	Moves the player to the given map-path and coordinates by first freezing
		2769	her, loading and preparing them map, calling the provided $check callback
		2770	that has to return the map if sucecssful, and then unfreezes the player on
		2771	the new (success) or old (failed) map position. In either case, $done will
		2772	be called at the end of this process.
		2773
		2774	Note that $check will be called with a potentially non-loaded map, so if
		2775	it needs a loaded map it has to call C<< ->load >>.
		2776
1572	=cut	2777	=cut
		2778
		2779	our $GOTOGEN;
1573		2780
1574	sub cf::object::player::goto {	2781	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2782	my ($self, $path, $x, $y, $check, $done) = @_;
		2783
		2784	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2785	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2786	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2787	($path, $x, $y) = @$EMERGENCY_POSITION;
		2788	}
		2789
		2790	# do generation counting so two concurrent goto's will be executed in-order
		2791	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2792
1577	$self->enter_link;	2793	$self->enter_link;
1578		2794
1579	(cf::async {	2795	(async {
1580	$path = new cf::path $path;	2796	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2797
1582	my $map = cf::map::find $path->as_string;	2798	# *tag paths override both path and x|y
		2799	if ($path =~ /^\*(.*)$/) {
		2800	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2801	my $ob = $obs[rand @obs];
		2802
		2803	# see if we actually can go there
		2804	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2805	$ob = $obs[rand @obs];
		2806	} else {
		2807	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2808	}
		2809	# else put us there anyways for now #d#
		2810
		2811	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2812	} else {
		2813	($path, $x, $y) = (undef, undef, undef);
		2814	}
		2815	}
		2816
		2817	my $map = eval {
		2818	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2819
		2820	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2821	$map = $map->customise_for ($self);
1584		2822	$map = $check->($map, $x, $y, $self) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2823	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2824	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2825	}
1589		2826
		2827	$map
		2828	};
		2829
		2830	if ($@) {
		2831	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2832	LOG llevError | logBacktrace, Carp::longmess $@;
		2833	}
		2834
		2835	if ($gen == $self->{_goto_generation}) {
		2836	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2837	$self->leave_link ($map, $x, $y);
		2838	}
		2839
		2840	$done->($self) if $done;
1591	})->prio (1);	2841	})->prio (1);
1592	}	2842	}
1593		2843
1594	=item $player_object->enter_exit ($exit_object)	2844	=item $player_object->enter_exit ($exit_object)
1595		2845
…		…
1597		2847
1598	sub parse_random_map_params {	2848	sub parse_random_map_params {
1599	my ($spec) = @_;	2849	my ($spec) = @_;
1600		2850
1601	my $rmp = { # defaults	2851	my $rmp = { # defaults
1602	xsize => 10,	2852	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2853	ysize => (cf::rndm 15, 40),
		2854	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2855	#layout => string,
1604	};	2856	};
1605		2857
1606	for (split /\n/, $spec) {	2858	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2859	my ($k, $v) = split /\s+/, $_, 2;
1608		2860
…		…
1620	# that depends on the exit object	2872	# that depends on the exit object
1621		2873
1622	my $rmp = parse_random_map_params $exit->msg;	2874	my $rmp = parse_random_map_params $exit->msg;
1623		2875
1624	if ($exit->map) {	2876	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2877	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2878	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2879	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2880	$rmp->{origin_y} = $exit->y;
		2881
		2882	$exit->map->touch;
1629	}	2883	}
1630		2884
1631	$rmp->{random_seed} ||= $exit->random_seed;	2885	$rmp->{random_seed} ||= $exit->random_seed;
1632		2886
1633	my $data = cf::to_json $rmp;	2887	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1634	my $md5 = Digest::MD5::md5_hex $data;	2888	my $md5 = Digest::MD5::md5_hex $data;
		2889	my $meta = "$RANDOMDIR/$md5.meta";
1635		2890
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2891	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2892	aio_write $fh, 0, (length $data), $data, 0;
		2893	undef $fh;
		2894	aio_rename "$meta~", $meta;
1638		2895
		2896	my $slaying = "?random/$md5";
		2897
		2898	if ($exit->valid) {
1639	$exit->slaying ("?random/$md5");	2899	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2900	$exit->msg (undef);
		2901	}
1641	}	2902	}
1642	}	2903	}
1643		2904
1644	sub cf::object::player::enter_exit {	2905	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2906	my ($self, $exit) = @_;
1646		2907
1647	return unless $self->type == cf::PLAYER;	2908	return unless $self->type == cf::PLAYER;
1648		2909
1649	$self->enter_link;	2910	$self->enter_link;
1650		2911
1651	(cf::async {	2912	(async {
1652	$self->deactivate_recursive; # just to be sure	2913	$Coro::current->{desc} = "enter_exit";
		2914
1653	unless (eval {	2915	unless (eval {
		2916	$self->deactivate_recursive; # just to be sure
		2917
		2918	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2919	my $x = $exit->stats->hp;
		2920	my $y = $exit->stats->sp;
		2921
		2922	# special map handling
		2923	my $slaying = $exit->slaying;
		2924
		2925	# special map handling
		2926	if ($slaying eq "/!") {
		2927	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2928
1654	prepare_random_map $exit	2929	prepare_random_map $exit
		2930	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2931
1655	if $exit->slaying eq "/!";	2932	$map = $exit->slaying;
1656		2933
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2934	} elsif ($slaying eq '!up') {
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2935	$map = $exit->map->tile_path (cf::TILE_UP);
		2936	$x = $exit->x;
		2937	$y = $exit->y;
1659		2938
		2939	} elsif ($slaying eq '!down') {
		2940	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2941	$x = $exit->x;
		2942	$y = $exit->y;
		2943	}
		2944
		2945	$self->goto ($map, $x, $y);
		2946
		2947	# if exit is damned, update players death & WoR home-position
		2948	$self->contr->savebed ($map, $x, $y)
		2949	if $exit->flag (cf::FLAG_DAMNED);
		2950
1660	1;	2951	1
1661	}) {	2952	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2953	$self->message ("Something went wrong deep within the deliantra server. "
1663	. "I'll try to bring you back to the map you were before. "	2954	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2955	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2956	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2957
1667	warn "ERROR in enter_exit: $@";	2958	error "ERROR in enter_exit: $@";
1668	$self->leave_link;	2959	$self->leave_link;
1669	}	2960	}
1670	})->prio (1);	2961	})->prio (1);
1671	}	2962	}
1672		2963
…		…
1683		2974
1684	sub cf::client::send_drawinfo {	2975	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2976	my ($self, $text, $flags) = @_;
1686		2977
1687	utf8::encode $text;	2978	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2979	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2980	}
1690		2981
		2982	=item $client->send_big_packet ($pkt)
		2983
		2984	Like C<send_packet>, but tries to compress large packets, and fragments
		2985	them as required.
		2986
		2987	=cut
		2988
		2989	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2990
		2991	sub cf::client::send_big_packet {
		2992	my ($self, $pkt) = @_;
		2993
		2994	# try lzf for large packets
		2995	$pkt = "lzf " . Compress::LZF::compress $pkt
		2996	if 1024 <= length $pkt and $self->{can_lzf};
		2997
		2998	# split very large packets
		2999	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3000	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3001	$pkt = "frag";
		3002	}
		3003
		3004	$self->send_packet ($pkt);
		3005	}
		3006
		3007	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3008
		3009	Send a drawinfo or msg packet to the client, formatting the msg for the
		3010	client if neccessary. C<$type> should be a string identifying the type of
		3011	the message, with C<log> being the default. If C<$color> is negative, suppress
		3012	the message unless the client supports the msg packet.
		3013
		3014	=cut
		3015
		3016	# non-persistent channels (usually the info channel)
		3017	our %CHANNEL = (
		3018	"c/motd" => {
		3019	id => "infobox",
		3020	title => "MOTD",
		3021	reply => undef,
		3022	tooltip => "The message of the day",
		3023	},
		3024	"c/identify" => {
		3025	id => "infobox",
		3026	title => "Identify",
		3027	reply => undef,
		3028	tooltip => "Items recently identified",
		3029	},
		3030	"c/examine" => {
		3031	id => "infobox",
		3032	title => "Examine",
		3033	reply => undef,
		3034	tooltip => "Signs and other items you examined",
		3035	},
		3036	"c/shopinfo" => {
		3037	id => "infobox",
		3038	title => "Shop Info",
		3039	reply => undef,
		3040	tooltip => "What your bargaining skill tells you about the shop",
		3041	},
		3042	"c/book" => {
		3043	id => "infobox",
		3044	title => "Book",
		3045	reply => undef,
		3046	tooltip => "The contents of a note or book",
		3047	},
		3048	"c/lookat" => {
		3049	id => "infobox",
		3050	title => "Look",
		3051	reply => undef,
		3052	tooltip => "What you saw there",
		3053	},
		3054	"c/who" => {
		3055	id => "infobox",
		3056	title => "Players",
		3057	reply => undef,
		3058	tooltip => "Shows players who are currently online",
		3059	},
		3060	"c/body" => {
		3061	id => "infobox",
		3062	title => "Body Parts",
		3063	reply => undef,
		3064	tooltip => "Shows which body parts you posess and are available",
		3065	},
		3066	"c/statistics" => {
		3067	id => "infobox",
		3068	title => "Statistics",
		3069	reply => undef,
		3070	tooltip => "Shows your primary statistics",
		3071	},
		3072	"c/skills" => {
		3073	id => "infobox",
		3074	title => "Skills",
		3075	reply => undef,
		3076	tooltip => "Shows your experience per skill and item power",
		3077	},
		3078	"c/shopitems" => {
		3079	id => "infobox",
		3080	title => "Shop Items",
		3081	reply => undef,
		3082	tooltip => "Shows the items currently for sale in this shop",
		3083	},
		3084	"c/resistances" => {
		3085	id => "infobox",
		3086	title => "Resistances",
		3087	reply => undef,
		3088	tooltip => "Shows your resistances",
		3089	},
		3090	"c/pets" => {
		3091	id => "infobox",
		3092	title => "Pets",
		3093	reply => undef,
		3094	tooltip => "Shows information abotu your pets/a specific pet",
		3095	},
		3096	"c/perceiveself" => {
		3097	id => "infobox",
		3098	title => "Perceive Self",
		3099	reply => undef,
		3100	tooltip => "You gained detailed knowledge about yourself",
		3101	},
		3102	"c/uptime" => {
		3103	id => "infobox",
		3104	title => "Uptime",
		3105	reply => undef,
		3106	tooltip => "How long the server has been running since last restart",
		3107	},
		3108	"c/mapinfo" => {
		3109	id => "infobox",
		3110	title => "Map Info",
		3111	reply => undef,
		3112	tooltip => "Information related to the maps",
		3113	},
		3114	"c/party" => {
		3115	id => "party",
		3116	title => "Party",
		3117	reply => "gsay ",
		3118	tooltip => "Messages and chat related to your party",
		3119	},
		3120	"c/death" => {
		3121	id => "death",
		3122	title => "Death",
		3123	reply => undef,
		3124	tooltip => "Reason for and more info about your most recent death",
		3125	},
		3126	"c/say" => $SAY_CHANNEL,
		3127	"c/chat" => $CHAT_CHANNEL,
		3128	);
		3129
		3130	sub cf::client::send_msg {
		3131	my ($self, $channel, $msg, $color, @extra) = @_;
		3132
		3133	$msg = $self->pl->expand_cfpod ($msg)
		3134	unless $color & cf::NDI_VERBATIM;
		3135
		3136	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3137
		3138	# check predefined channels, for the benefit of C
		3139	if ($CHANNEL{$channel}) {
		3140	$channel = $CHANNEL{$channel};
		3141
		3142	$self->ext_msg (channel_info => $channel);
		3143	$channel = $channel->{id};
		3144
		3145	} elsif (ref $channel) {
		3146	# send meta info to client, if not yet sent
		3147	unless (exists $self->{channel}{$channel->{id}}) {
		3148	$self->{channel}{$channel->{id}} = $channel;
		3149	$self->ext_msg (channel_info => $channel);
		3150	}
		3151
		3152	$channel = $channel->{id};
		3153	}
		3154
		3155	return unless @extra || length $msg;
		3156
		3157	# default colour, mask it out
		3158	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3159	if $color & cf::NDI_DEF;
		3160
		3161	my $pkt = "msg "
		3162	. $self->{json_coder}->encode (
		3163	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3164	);
		3165
		3166	$self->send_big_packet ($pkt);
		3167	}
		3168
		3169	=item $client->ext_msg ($type, @msg)
		3170
		3171	Sends an ext event to the client.
		3172
		3173	=cut
		3174
		3175	sub cf::client::ext_msg($$@) {
		3176	my ($self, $type, @msg) = @_;
		3177
		3178	if ($self->extcmd == 2) {
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3180	} elsif ($self->extcmd == 1) { # TODO: remove
		3181	push @msg, msgtype => "event_$type";
		3182	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3183	}
		3184	}
		3185
		3186	=item $client->ext_reply ($msgid, @msg)
		3187
		3188	Sends an ext reply to the client.
		3189
		3190	=cut
		3191
		3192	sub cf::client::ext_reply($$@) {
		3193	my ($self, $id, @msg) = @_;
		3194
		3195	if ($self->extcmd == 2) {
		3196	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3197	} elsif ($self->extcmd == 1) {
		3198	#TODO: version 1, remove
		3199	unshift @msg, msgtype => "reply", msgid => $id;
		3200	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3201	}
		3202	}
1691		3203
1692	=item $success = $client->query ($flags, "text", \&cb)	3204	=item $success = $client->query ($flags, "text", \&cb)
1693		3205
1694	Queues a query to the client, calling the given callback with	3206	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3207	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3208	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		3209
1698	Queries can fail, so check the return code. Or don't, as queries will become	3210	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	3211	become reliable at some point in the future.
1700		3212
1701	=cut	3213	=cut
1702		3214
1703	sub cf::client::query {	3215	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	3216	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	3224	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3225	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		3226
1715	$self->send_packet ($self->{query_queue}[0][0])	3227	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	3228	if @{ $self->{query_queue} } == 1;
		3229
		3230	1
1717	}	3231	}
1718		3232
1719	cf::client->attach (	3233	cf::client->attach (
		3234	on_connect => sub {
		3235	my ($ns) = @_;
		3236
		3237	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3238	},
1720	on_reply => sub {	3239	on_reply => sub {
1721	my ($ns, $msg) = @_;	3240	my ($ns, $msg) = @_;
1722		3241
1723	# this weird shuffling is so that direct followup queries	3242	# this weird shuffling is so that direct followup queries
1724	# get handled first	3243	# get handled first
1725	my $queue = delete $ns->{query_queue}	3244	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	3245	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		3246
1728	(shift @$queue)->[1]->($msg);	3247	(shift @$queue)->[1]->($msg);
		3248	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		3249
1730	push @{ $ns->{query_queue} }, @$queue;	3250	push @{ $ns->{query_queue} }, @$queue;
1731		3251
1732	if (@{ $ns->{query_queue} } == @$queue) {	3252	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	3253	if (@$queue) {
…		…
1735	} else {	3255	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3256	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	3257	}
1738	}	3258	}
1739	},	3259	},
		3260	on_exticmd => sub {
		3261	my ($ns, $buf) = @_;
		3262
		3263	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3264
		3265	if (ref $msg) {
		3266	my ($type, $reply, @payload) =
		3267	"ARRAY" eq ref $msg
		3268	? @$msg
		3269	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3270
		3271	my @reply;
		3272
		3273	if (my $cb = $EXTICMD{$type}) {
		3274	@reply = $cb->($ns, @payload);
		3275	}
		3276
		3277	$ns->ext_reply ($reply, @reply)
		3278	if $reply;
		3279
		3280	} else {
		3281	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3282	}
		3283
		3284	cf::override;
		3285	},
1740	);	3286	);
1741		3287
1742	=item $client->coro (\&cb)	3288	=item $client->async (\&cb)
1743		3289
1744	Create a new coroutine, running the specified callback. The coroutine will	3290	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	3291	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	3292	or loss of connection).
1747		3293
1748	=cut	3294	=cut
1749		3295
1750	sub cf::client::coro {	3296	sub cf::client::async {
1751	my ($self, $cb) = @_;	3297	my ($self, $cb) = @_;
1752		3298
1753	my $coro = &cf::async ($cb);	3299	my $coro = &Coro::async ($cb);
1754		3300
1755	$coro->on_destroy (sub {	3301	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	3302	delete $self->{_coro}{$coro+0};
1757	});	3303	});
1758		3304
…		…
1760		3306
1761	$coro	3307	$coro
1762	}	3308	}
1763		3309
1764	cf::client->attach (	3310	cf::client->attach (
1765	on_destroy => sub {	3311	on_client_destroy => sub {
1766	my ($ns) = @_;	3312	my ($ns) = @_;
1767		3313
1768	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3314	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1769	},	3315	},
1770	);	3316	);
…		…
1785	our $safe = new Safe "safe";	3331	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3332	our $safe_hole = new Safe::Hole;
1787		3333
1788	$SIG{FPE} = 'IGNORE';	3334	$SIG{FPE} = 'IGNORE';
1789		3335
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3336	$safe->permit_only (Opcode::opset qw(
		3337	:base_core :base_mem :base_orig :base_math :base_loop
		3338	grepstart grepwhile mapstart mapwhile
		3339	sort time
		3340	));
1791		3341
1792	# here we export the classes and methods available to script code	3342	# here we export the classes and methods available to script code
1793		3343
1794	=pod	3344	=pod
1795		3345
1796	The following fucntions and emthods are available within a safe environment:	3346	The following functions and methods are available within a safe environment:
1797		3347
1798	cf::object contr pay_amount pay_player map	3348	cf::object
		3349	contr pay_amount pay_player map x y force_find force_add destroy
		3350	insert remove name archname title slaying race decrease split
		3351	value
		3352
1799	cf::object::player player	3353	cf::object::player
1800	cf::player peaceful	3354	player
1801	cf::map trigger	3355
		3356	cf::player
		3357	peaceful
		3358
		3359	cf::map
		3360	trigger
1802		3361
1803	=cut	3362	=cut
1804		3363
1805	for (	3364	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3365	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3366	insert remove inv nrof name archname title slaying race
		3367	decrease split destroy change_exp value msg lore send_msg)],
1807	["cf::object::player" => qw(player)],	3368	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3369	["cf::player" => qw(peaceful send_msg)],
1809	["cf::map" => qw(trigger)],	3370	["cf::map" => qw(trigger)],
1810	) {	3371	) {
1811	no strict 'refs';
1812	my ($pkg, @funs) = @$_;	3372	my ($pkg, @funs) = @$_;
1813	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3373	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1814	for @funs;	3374	for @funs;
1815	}	3375	}
1816		3376
…		…
1831		3391
1832	my $qcode = $code;	3392	my $qcode = $code;
1833	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3393	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1834	$qcode =~ s/\n/\\n/g;	3394	$qcode =~ s/\n/\\n/g;
1835		3395
		3396	%vars = (_dummy => 0) unless %vars;
		3397
		3398	my @res;
1836	local $_;	3399	local $_;
1837	local @safe::cf::_safe_eval_args = values %vars;
1838		3400
1839	my $eval =	3401	my $eval =
1840	"do {\n"	3402	"do {\n"
1841	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3403	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1842	. "#line 0 \"{$qcode}\"\n"	3404	. "#line 0 \"{$qcode}\"\n"
1843	. $code	3405	. $code
1844	. "\n}"	3406	. "\n}"
1845	;	3407	;
1846		3408
		3409	if ($CFG{safe_eval}) {
1847	sub_generation_inc;	3410	sub_generation_inc;
		3411	local @safe::cf::_safe_eval_args = values %vars;
1848	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3412	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1849	sub_generation_inc;	3413	sub_generation_inc;
		3414	} else {
		3415	local @cf::_safe_eval_args = values %vars;
		3416	@res = wantarray ? eval eval : scalar eval $eval;
		3417	}
1850		3418
1851	if ($@) {	3419	if ($@) {
1852	warn "$@";	3420	warn "$@",
1853	warn "while executing safe code '$code'\n";	3421	"while executing safe code '$code'\n",
1854	warn "with arguments " . (join " ", %vars) . "\n";	3422	"with arguments " . (join " ", %vars) . "\n";
1855	}	3423	}
1856		3424
1857	wantarray ? @res : $res[0]	3425	wantarray ? @res : $res[0]
1858	}	3426	}
1859		3427
…		…
1873	=cut	3441	=cut
1874		3442
1875	sub register_script_function {	3443	sub register_script_function {
1876	my ($fun, $cb) = @_;	3444	my ($fun, $cb) = @_;
1877		3445
1878	no strict 'refs';	3446	$fun = "safe::$fun" if $CFG{safe_eval};
1879	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3447	*$fun = $safe_hole->wrap ($cb);
1880	}	3448	}
1881		3449
1882	=back	3450	=back
1883		3451
1884	=cut	3452	=cut
1885		3453
1886	#############################################################################	3454	#############################################################################
		3455	# the server's init and main functions
1887		3456
1888	=head2 EXTENSION DATABASE SUPPORT	3457	sub load_facedata($) {
		3458	my ($path) = @_;
1889		3459
1890	Crossfire maintains a very simple database for extension use. It can	3460	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3461	# for this (global event?)
1892	excludes objects.	3462	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3463
1894	The parameter C<$family> should best start with the name of the extension	3464	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3465
1897	=over 4	3466	trace "loading facedata from $path\n";
1898		3467
1899	=item $hashref = cf::db_get $family	3468	my $facedata = decode_storable load_file $path;
1900		3469
1901	Return a hashref for use by the extension C<$family>, which can be	3470	$facedata->{version} == 2
1902	modified. After modifications, you have to call C<cf::db_dirty> or	3471	or cf::cleanup "$path: version mismatch, cannot proceed.";
1903	C<cf::db_sync>.
1904		3472
1905	=item $value = cf::db_get $family => $key	3473	# patch in the exptable
1906		3474	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1907	Returns a single value from the database	3475	$facedata->{resource}{"res/exp_table"} = {
1908		3476	type => FT_RSRC,
1909	=item cf::db_put $family => $hashref	3477	data => $exp_table,
1910		3478	hash => (Digest::MD5::md5 $exp_table),
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3479	};
		3480	cf::cede_to_tick;
1960		3481
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3482	{
		3483	my $faces = $facedata->{faceinfo};
1965		3484
1966	sub db_get($;$) {	3485	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3486	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		3487
1972	sub db_put($$;$) {	3488	cf::face::set_visibility $idx, $info->{visibility};
1973	if (@_ >= 3) {	3489	cf::face::set_magicmap $idx, $info->{magicmap};
1974	$DB->{$_[0]}{$_[1]} = $_[2];	3490	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1975	} else {	3491	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1976	$DB->{$_[0]} = $_[1];	3492	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1977	}
1978	db_dirty;
1979	}
1980		3493
1981	cf::global->attach (	3494	cf::cede_to_tick;
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3495	}
1986	);
1987	}
1988		3496
1989	#############################################################################	3497	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3498	next unless $info->{smooth};
1991		3499
1992	sub cfg_load {	3500	my $idx = cf::face::find $face
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3501	or next;
1994	or return;
1995		3502
1996	local $/;	3503	if (my $smooth = cf::face::find $info->{smooth}) {
1997	*CFG = YAML::Syck::Load <$fh>;	3504	cf::face::set_smooth $idx, $smooth;
		3505	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3506	} else {
		3507	error "smooth face '$info->{smooth}' not found for face '$face'";
		3508	}
1998		3509
		3510	cf::cede_to_tick;
		3511	}
		3512	}
		3513
		3514	{
		3515	my $anims = $facedata->{animinfo};
		3516
		3517	while (my ($anim, $info) = each %$anims) {
		3518	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3519	cf::cede_to_tick;
		3520	}
		3521
		3522	cf::anim::invalidate_all; # d'oh
		3523	}
		3524
		3525	{
		3526	my $res = $facedata->{resource};
		3527
		3528	while (my ($name, $info) = each %$res) {
		3529	if (defined $info->{type}) {
		3530	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3531
		3532	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3533	cf::face::set_type $idx, $info->{type};
		3534	} else {
		3535	$RESOURCE{$name} = $info; # unused
		3536	}
		3537
		3538	cf::cede_to_tick;
		3539	}
		3540	}
		3541
		3542	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3543
		3544	1
		3545	}
		3546
		3547	register_exticmd fx_want => sub {
		3548	my ($ns, $want) = @_;
		3549
		3550	while (my ($k, $v) = each %$want) {
		3551	$ns->fx_want ($k, $v);
		3552	}
		3553	};
		3554
		3555	sub load_resource_file($) {
		3556	my $guard = lock_acquire "load_resource_file";
		3557
		3558	my $status = load_resource_file_ $_[0];
		3559	get_slot 0.1, 100;
		3560	cf::arch::commit_load;
		3561
		3562	$status
		3563	}
		3564
		3565	sub reload_regions {
		3566	# HACK to clear player env face cache, we need some signal framework
		3567	# for this (global event?)
		3568	%ext::player_env::MUSIC_FACE_CACHE = ();
		3569
		3570	load_resource_file "$MAPDIR/regions"
		3571	or die "unable to load regions file\n";
		3572
		3573	for (cf::region::list) {
		3574	$_->{match} = qr/$_->{match}/
		3575	if exists $_->{match};
		3576	}
		3577	}
		3578
		3579	sub reload_facedata {
		3580	load_facedata "$DATADIR/facedata"
		3581	or die "unable to load facedata\n";
		3582	}
		3583
		3584	sub reload_archetypes {
		3585	load_resource_file "$DATADIR/archetypes"
		3586	or die "unable to load archetypes\n";
		3587	}
		3588
		3589	sub reload_treasures {
		3590	load_resource_file "$DATADIR/treasures"
		3591	or die "unable to load treasurelists\n";
		3592	}
		3593
		3594	sub reload_sound {
		3595	trace "loading sound config from $DATADIR/sound\n";
		3596
		3597	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3598
		3599	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3600	my $sound = $soundconf->{compat}[$_]
		3601	or next;
		3602
		3603	my $face = cf::face::find "sound/$sound->[1]";
		3604	cf::sound::set $sound->[0] => $face;
		3605	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3606	}
		3607
		3608	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3609	my $face = cf::face::find "sound/$v";
		3610	cf::sound::set $k => $face;
		3611	}
		3612	}
		3613
		3614	sub reload_resources {
		3615	trace "reloading resource files...\n";
		3616
		3617	reload_exp_table;
		3618	reload_materials;
		3619	reload_facedata;
		3620	reload_sound;
		3621	reload_archetypes;
		3622	reload_regions;
		3623	reload_treasures;
		3624
		3625	trace "finished reloading resource files\n";
		3626	}
		3627
		3628	sub reload_config {
		3629	trace "reloading config file...\n";
		3630
		3631	my $config = load_file "$CONFDIR/config";
		3632	utf8::decode $config;
		3633	*CFG = decode_yaml $config;
		3634
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3635	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3636
		3637	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3638	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2000		3639
2001	if (exists $CFG{mlockall}) {	3640	if (exists $CFG{mlockall}) {
2002	eval {	3641	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3642	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3643	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3644	};
2006	warn $@ if $@;	3645	warn $@ if $@;
2007	}	3646	}
2008	}	3647	}
2009		3648
		3649	sub pidfile() {
		3650	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3651	or die "$PIDFILE: $!";
		3652	flock $fh, &Fcntl::LOCK_EX
		3653	or die "$PIDFILE: flock: $!";
		3654	$fh
		3655	}
		3656
		3657	# make sure only one server instance is running at any one time
		3658	sub atomic {
		3659	my $fh = pidfile;
		3660
		3661	my $pid = <$fh>;
		3662	kill 9, $pid if $pid > 0;
		3663
		3664	seek $fh, 0, 0;
		3665	print $fh $$;
		3666	}
		3667
		3668	sub main_loop {
		3669	trace "EV::loop starting\n";
		3670	if (1) {
		3671	EV::loop;
		3672	}
		3673	trace "EV::loop returned\n";
		3674	goto &main_loop unless $REALLY_UNLOOP;
		3675	}
		3676
2010	sub main {	3677	sub main {
		3678	cf::init_globals; # initialise logging
		3679
		3680	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3681	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3682	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3683	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3684
		3685	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3686
2011	# we must not ever block the main coroutine	3687	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3688	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3689	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3690	(async {
2015	Event::one_event;	3691	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3692	EV::loop EV::LOOP_ONESHOT;
		3693	})->prio (Coro::PRIO_MAX);
2017	};	3694	};
2018		3695
2019	cfg_load;	3696	evthread_start IO::AIO::poll_fileno;
2020	db_load;	3697
		3698	cf::sync_job {
		3699	cf::incloader::init ();
		3700
		3701	cf::init_anim;
		3702	cf::init_attackmess;
		3703	cf::init_dynamic;
		3704
		3705	cf::load_settings;
		3706
		3707	reload_resources;
		3708	reload_config;
		3709	db_init;
		3710
		3711	cf::init_uuid;
		3712	cf::init_signals;
		3713	cf::init_skills;
		3714
		3715	cf::init_beforeplay;
		3716
		3717	atomic;
		3718
2021	load_extensions;	3719	load_extensions;
2022	Event::loop;	3720
		3721	utime time, time, $RUNTIMEFILE;
		3722
		3723	# no (long-running) fork's whatsoever before this point(!)
		3724	use POSIX ();
		3725	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3726
		3727	cf::_post_init 0;
		3728	};
		3729
		3730	cf::object::thawer::errors_are_fatal 0;
		3731	info "parse errors in files are no longer fatal from this point on.\n";
		3732
		3733	my $free_main; $free_main = EV::idle sub {
		3734	undef $free_main;
		3735	undef &main; # free gobs of memory :)
		3736	};
		3737
		3738	goto &main_loop;
2023	}	3739	}
2024		3740
2025	#############################################################################	3741	#############################################################################
2026	# initialisation	3742	# initialisation and cleanup
2027		3743
		3744	# install some emergency cleanup handlers
		3745	BEGIN {
		3746	our %SIGWATCHER = ();
		3747	for my $signal (qw(INT HUP TERM)) {
		3748	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3749	cf::cleanup "SIG$signal";
		3750	};
		3751	}
		3752	}
		3753
		3754	sub write_runtime_sync {
		3755	my $t0 = AE::time;
		3756
		3757	# first touch the runtime file to show we are still running:
		3758	# the fsync below can take a very very long time.
		3759
		3760	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3761
		3762	my $guard = cf::lock_acquire "write_runtime";
		3763
		3764	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3765	or return;
		3766
		3767	my $value = $cf::RUNTIME + 90 + 10;
		3768	# 10 is the runtime save interval, for a monotonic clock
		3769	# 60 allows for the watchdog to kill the server.
		3770
		3771	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3772	and return;
		3773
		3774	# always fsync - this file is important
		3775	aio_fsync $fh
		3776	and return;
		3777
		3778	# touch it again to show we are up-to-date
		3779	aio_utime $fh, undef, undef;
		3780
		3781	close $fh
		3782	or return;
		3783
		3784	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3785	and return;
		3786
		3787	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3788
		3789	1
		3790	}
		3791
		3792	our $uuid_lock;
		3793	our $uuid_skip;
		3794
		3795	sub write_uuid_sync($) {
		3796	$uuid_skip ||= $_[0];
		3797
		3798	return if $uuid_lock;
		3799	local $uuid_lock = 1;
		3800
		3801	my $uuid = "$LOCALDIR/uuid";
		3802
		3803	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3804	or return;
		3805
		3806	my $value = uuid_seq uuid_cur;
		3807
		3808	unless ($value) {
		3809	info "cowardly refusing to write zero uuid value!\n";
		3810	return;
		3811	}
		3812
		3813	my $value = uuid_str $value + $uuid_skip;
		3814	$uuid_skip = 0;
		3815
		3816	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3817	and return;
		3818
		3819	# always fsync - this file is important
		3820	aio_fsync $fh
		3821	and return;
		3822
		3823	close $fh
		3824	or return;
		3825
		3826	aio_rename "$uuid~", $uuid
		3827	and return;
		3828
		3829	trace "uuid file written ($value).\n";
		3830
		3831	1
		3832
		3833	}
		3834
		3835	sub write_uuid($$) {
		3836	my ($skip, $sync) = @_;
		3837
		3838	$sync ? write_uuid_sync $skip
		3839	: async { write_uuid_sync $skip };
		3840	}
		3841
		3842	sub emergency_save() {
		3843	my $freeze_guard = cf::freeze_mainloop;
		3844
		3845	info "emergency_perl_save: enter\n";
		3846
		3847	# this is a trade-off: we want to be very quick here, so
		3848	# save all maps without fsync, and later call a global sync
		3849	# (which in turn might be very very slow)
		3850	local $USE_FSYNC = 0;
		3851
		3852	cf::sync_job {
		3853	cf::write_runtime_sync; # external watchdog should not bark
		3854
		3855	# use a peculiar iteration method to avoid tripping on perl
		3856	# refcount bugs in for. also avoids problems with players
		3857	# and maps saved/destroyed asynchronously.
		3858	info "emergency_perl_save: begin player save\n";
		3859	for my $login (keys %cf::PLAYER) {
		3860	my $pl = $cf::PLAYER{$login} or next;
		3861	$pl->valid or next;
		3862	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3863	$pl->save;
		3864	}
		3865	info "emergency_perl_save: end player save\n";
		3866
		3867	cf::write_runtime_sync; # external watchdog should not bark
		3868
		3869	info "emergency_perl_save: begin map save\n";
		3870	for my $path (keys %cf::MAP) {
		3871	my $map = $cf::MAP{$path} or next;
		3872	$map->valid or next;
		3873	$map->save;
		3874	}
		3875	info "emergency_perl_save: end map save\n";
		3876
		3877	cf::write_runtime_sync; # external watchdog should not bark
		3878
		3879	info "emergency_perl_save: begin database checkpoint\n";
		3880	BDB::db_env_txn_checkpoint $DB_ENV;
		3881	info "emergency_perl_save: end database checkpoint\n";
		3882
		3883	info "emergency_perl_save: begin write uuid\n";
		3884	write_uuid_sync 1;
		3885	info "emergency_perl_save: end write uuid\n";
		3886
		3887	cf::write_runtime_sync; # external watchdog should not bark
		3888
		3889	trace "emergency_perl_save: syncing database to disk";
		3890	BDB::db_env_txn_checkpoint $DB_ENV;
		3891
		3892	info "emergency_perl_save: starting sync\n";
		3893	IO::AIO::aio_sync sub {
		3894	info "emergency_perl_save: finished sync\n";
		3895	};
		3896
		3897	cf::write_runtime_sync; # external watchdog should not bark
		3898
		3899	trace "emergency_perl_save: flushing outstanding aio requests";
		3900	while (IO::AIO::nreqs || BDB::nreqs) {
		3901	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3902	}
		3903
		3904	cf::write_runtime_sync; # external watchdog should not bark
		3905	};
		3906
		3907	info "emergency_perl_save: leave\n";
		3908	}
		3909
		3910	sub post_cleanup {
		3911	my ($make_core) = @_;
		3912
		3913	IO::AIO::flush;
		3914
		3915	error Carp::longmess "post_cleanup backtrace"
		3916	if $make_core;
		3917
		3918	my $fh = pidfile;
		3919	unlink $PIDFILE if <$fh> == $$;
		3920	}
		3921
		3922	# a safer delete_package, copied from Symbol
		3923	sub clear_package($) {
		3924	my $pkg = shift;
		3925
		3926	# expand to full symbol table name if needed
		3927	unless ($pkg =~ /^main::.*::$/) {
		3928	$pkg = "main$pkg" if $pkg =~ /^::/;
		3929	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3930	$pkg .= '::' unless $pkg =~ /::$/;
		3931	}
		3932
		3933	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3934	my $stem_symtab = *{$stem}{HASH};
		3935
		3936	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3937	or return;
		3938
		3939	# clear all symbols
		3940	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3941	for my $name (keys %$leaf_symtab) {
		3942	_gv_clear *{"$pkg$name"};
		3943	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3944	}
		3945	}
		3946
2028	sub reload() {	3947	sub do_reload_perl() {
2029	# can/must only be called in main	3948	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3949	unless (in_main) {
2031	warn "can only reload from main coroutine\n";	3950	error "can only reload from main coroutine";
2032	return;	3951	return;
2033	}	3952	}
2034		3953
2035	warn "reloading...";	3954	return if $RELOAD++;
2036		3955
2037	my $guard = freeze_mainloop;	3956	my $t1 = AE::time;
		3957
		3958	while ($RELOAD) {
		3959	cf::get_slot 0.1, -1, "reload_perl";
		3960	info "perl_reload: reloading...";
		3961
		3962	trace "perl_reload: entering sync_job";
		3963
		3964	cf::sync_job {
2038	cf::emergency_save;	3965	#cf::emergency_save;
2039		3966
2040	eval {	3967	trace "perl_reload: cancelling all extension coros";
2041	# if anything goes wrong in here, we should simply crash as we already saved
2042
2043	# cancel all watchers
2044	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}
2047
2048	# cancel all extension coros
2049	$_->cancel for values %EXT_CORO;	3968	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3969	%EXT_CORO = ();
2051		3970
2052	# unload all extensions	3971	trace "perl_reload: removing commands";
2053	for (@exts) {	3972	%COMMAND = ();
2054	warn "unloading <$_>";
2055	unload_extension $_;
2056	}
2057		3973
2058	# unload all modules loaded from $LIBDIR	3974	trace "perl_reload: removing ext/exti commands";
2059	while (my ($k, $v) = each %INC) {	3975	%EXTCMD = ();
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3976	%EXTICMD = ();
2061		3977
2062	warn "removing <$k>";	3978	trace "perl_reload: unloading/nuking all extensions";
2063	delete $INC{$k};	3979	for my $pkg (@EXTS) {
		3980	trace "... unloading $pkg";
2064		3981
2065	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;
2067
2068	if (my $cb = $k->can ("unload_module")) {	3982	if (my $cb = $pkg->can ("unload")) {
		3983	eval {
2069	$cb->();	3984	$cb->($pkg);
		3985	1
		3986	} or error "$pkg unloaded, but with errors: $@";
		3987	}
		3988
		3989	trace "... clearing $pkg";
		3990	clear_package $pkg;
2070	}	3991	}
2071		3992
2072	Symbol::delete_package $k;	3993	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3994	while (my ($k, $v) = each %INC) {
		3995	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3996
		3997	trace "... unloading $k";
		3998	delete $INC{$k};
		3999
		4000	$k =~ s/\.pm$//;
		4001	$k =~ s/\//::/g;
		4002
		4003	if (my $cb = $k->can ("unload_module")) {
		4004	$cb->();
		4005	}
		4006
		4007	clear_package $k;
2073	}	4008	}
2074		4009
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	4010	trace "perl_reload: getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	4011	clear_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4012	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		4013
2083	# remove register_script_function callbacks	4014	trace "perl_reload: unloading cf.pm \"a bit\"";
2084	# TODO
2085
2086	# unload cf.pm "a bit"
2087	delete $INC{"cf.pm"};	4015	delete $INC{"cf.pm"};
		4016	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2088		4017
2089	# don't, removes xs symbols, too,	4018	# don't, removes xs symbols, too,
2090	# and global variables created in xs	4019	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	4020	#clear_package __PACKAGE__;
2092		4021
2093	# reload cf.pm	4022	info "perl_reload: unload completed, starting to reload now";
2094	warn "reloading cf.pm";	4023
		4024	trace "perl_reload: reloading cf.pm";
2095	require cf;	4025	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4026	cf::_connect_to_perl_1;
2097		4027
2098	# load config and database again	4028	trace "perl_reload: loading config and database again";
2099	cf::cfg_load;	4029	cf::reload_config;
2100	cf::db_load;
2101		4030
2102	# load extensions	4031	trace "perl_reload: loading extensions";
2103	warn "load extensions";
2104	cf::load_extensions;	4032	cf::load_extensions;
2105		4033
2106	# reattach attachments to objects	4034	if ($REATTACH_ON_RELOAD) {
2107	warn "reattach";	4035	trace "perl_reload: reattaching attachments to objects/players";
2108	_global_reattach;	4036	_global_reattach; # objects, sockets
		4037	trace "perl_reload: reattaching attachments to maps";
		4038	reattach $_ for values %MAP;
		4039	trace "perl_reload: reattaching attachments to players";
		4040	reattach $_ for values %PLAYER;
		4041	}
		4042
		4043	cf::_post_init 1;
		4044
		4045	trace "perl_reload: leaving sync_job";
		4046
		4047	1
		4048	} or do {
		4049	error $@;
		4050	cf::cleanup "perl_reload: error, exiting.";
		4051	};
		4052
		4053	--$RELOAD;
		4054	}
		4055
		4056	$t1 = AE::time - $t1;
		4057	info "perl_reload: completed in ${t1}s\n";
		4058	};
		4059
		4060	our $RELOAD_WATCHER; # used only during reload
		4061
		4062	sub reload_perl() {
		4063	# doing reload synchronously and two reloads happen back-to-back,
		4064	# coro crashes during coro_state_free->destroy here.
		4065
		4066	$RELOAD_WATCHER ||= cf::async {
		4067	Coro::AIO::aio_wait cache_extensions;
		4068
		4069	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4070	do_reload_perl;
		4071	undef $RELOAD_WATCHER;
		4072	};
2109	};	4073	};
2110
2111	if ($@) {
2112	warn $@;
2113	warn "error while reloading, exiting.";
2114	exit 1;
2115	}
2116
2117	warn "reloaded successfully";
2118	};
2119
2120	#############################################################################
2121
2122	unless ($LINK_MAP) {
2123	$LINK_MAP = cf::map::new;
2124
2125	$LINK_MAP->width (41);
2126	$LINK_MAP->height (41);
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	4074	}
2162
2163	register "<global>", __PACKAGE__;
2164		4075
2165	register_command "reload" => sub {	4076	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	4077	my ($who, $arg) = @_;
2167		4078
2168	if ($who->flag (FLAG_WIZ)) {	4079	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	4080	$who->message ("reloading server.");
		4081	async {
		4082	$Coro::current->{desc} = "perl_reload";
		4083	reload_perl;
		4084	};
2172	}	4085	}
2173	};	4086	};
2174		4087
2175	unshift @INC, $LIBDIR;	4088	#############################################################################
2176		4089
2177	$TICK_WATCHER = Event->timer (	4090	my $bug_warning = 0;
2178	reentrant => 0,
2179	prio => 0,
2180	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,
2182	cb => sub {
2183	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;
2186		4091
2187	# if we are delayed by four ticks or more, skip them all	4092	sub wait_for_tick() {
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4093	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2189		4094
2190	$TICK_WATCHER->at ($NEXT_TICK);	4095	$WAIT_FOR_TICK->wait;
2191	$TICK_WATCHER->start;	4096	}
		4097
		4098	sub wait_for_tick_begin() {
		4099	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4100
		4101	my $signal = new Coro::Signal;
		4102	push @WAIT_FOR_TICK_BEGIN, $signal;
		4103	$signal->wait;
		4104	}
		4105
		4106	sub tick {
		4107	if ($Coro::current != $Coro::main) {
		4108	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4109	unless ++$bug_warning > 10;
		4110	return;
2192	},	4111	}
2193	);
2194		4112
2195	IO::AIO::max_poll_time $TICK * 0.2;	4113	cf::one_tick; # one server iteration
2196		4114
2197	Event->io (	4115	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2198	fd => IO::AIO::poll_fileno,
2199	poll => 'r',
2200	prio => 5,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204		4116
2205	Event->timer (	4117	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2206	data => WF_AUTOCANCEL,	4118	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2207	after => 0,	4119	Coro::async_pool {
2208	interval => 10,	4120	$Coro::current->{desc} = "runtime saver";
2209	cb => sub {
2210	(Coro::unblock_sub {
2211	write_runtime	4121	write_runtime_sync
2212	or warn "ERROR: unable to write runtime file: $!";	4122	or error "ERROR: unable to write runtime file: $!";
2213	})->();	4123	};
2214	},	4124	}
2215	);	4125
		4126	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4127	$sig->send;
		4128	}
		4129	$WAIT_FOR_TICK->broadcast;
		4130
		4131	$LOAD = ($NOW - $TICK_START) / $TICK;
		4132	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4133
		4134	if (0) {
		4135	if ($NEXT_TICK) {
		4136	my $jitter = $TICK_START - $NEXT_TICK;
		4137	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4138	debug "jitter $JITTER\n";#d#
		4139	}
		4140	}
		4141	}
		4142
		4143	{
		4144	# configure BDB
		4145
		4146	BDB::min_parallel 16;
		4147	BDB::max_poll_reqs $TICK * 0.1;
		4148	$AnyEvent::BDB::WATCHER->priority (1);
		4149
		4150	unless ($DB_ENV) {
		4151	$DB_ENV = BDB::db_env_create;
		4152	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4153	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4154	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4155	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4156	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4157
		4158	cf::sync_job {
		4159	eval {
		4160	BDB::db_env_open
		4161	$DB_ENV,
		4162	$BDBDIR,
		4163	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4164	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4165	0666;
		4166
		4167	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4168	};
		4169
		4170	cf::cleanup "db_env_open(db): $@" if $@;
		4171	};
		4172	}
		4173
		4174	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4175	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4176	};
		4177	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4178	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4179	};
		4180	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4181	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4182	};
		4183	}
		4184
		4185	{
		4186	# configure IO::AIO
		4187
		4188	IO::AIO::min_parallel 8;
		4189	IO::AIO::max_poll_time $TICK * 0.1;
		4190	undef $AnyEvent::AIO::WATCHER;
		4191	}
		4192
		4193	our $_log_backtrace;
		4194	our $_log_backtrace_last;
		4195
		4196	sub _log_backtrace {
		4197	my ($msg, @addr) = @_;
		4198
		4199	$msg =~ s/\n$//;
		4200
		4201	if ($_log_backtrace_last eq $msg) {
		4202	LOG llevInfo, "[ABT] $msg\n";
		4203	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4204	# limit the # of concurrent backtraces
		4205	} elsif ($_log_backtrace < 2) {
		4206	$_log_backtrace_last = $msg;
		4207	++$_log_backtrace;
		4208	my $perl_bt = Carp::longmess $msg;
		4209	async {
		4210	$Coro::current->{desc} = "abt $msg";
		4211
		4212	my @bt = fork_call {
		4213	@addr = map { sprintf "%x", $_ } @addr;
		4214	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4215	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4216	or die "addr2line: $!";
		4217
		4218	my @funcs;
		4219	my @res = <$fh>;
		4220	chomp for @res;
		4221	while (@res) {
		4222	my ($func, $line) = splice @res, 0, 2, ();
		4223	push @funcs, "[$func] $line";
		4224	}
		4225
		4226	@funcs
		4227	};
		4228
		4229	LOG llevInfo, "[ABT] $perl_bt\n";
		4230	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4231	LOG llevInfo, "[ABT] $_\n" for @bt;
		4232	--$_log_backtrace;
		4233	};
		4234	} else {
		4235	LOG llevInfo, "[ABT] $msg\n";
		4236	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4237	}
		4238	}
		4239
		4240	# load additional modules
		4241	require "cf/$_.pm" for @EXTRA_MODULES;
		4242	cf::_connect_to_perl_2;
2216		4243
2217	END { cf::emergency_save }	4244	END { cf::emergency_save }
2218		4245
2219	1	4246	1
2220		4247

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