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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.125 by root, Tue Jan 2 23:06:39 2007 UTC vs.
Revision 1.575 by root, Sat Aug 13 20:20:30 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 $FREEZE;	149	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	150	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO;	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 $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
57		159
58	binmode STDOUT;	160	binmode STDOUT;
59	binmode STDERR;	161	binmode STDERR;
60		162
61	# read virtual server time, if available	163	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
66	}	168	}
67		169
68	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		171
74	# a special map that is always available	172	mkdir $_
75	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		174
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	175	our $EMERGENCY_POSITION;
		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
78		182
79	#############################################################################	183	#############################################################################
80		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
81	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
82		197
83	=over 4	198	=over 4
84		199
85	=item $cf::UPTIME	200	=item $cf::UPTIME
86		201
87	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.
88		218
89	=item $cf::RUNTIME	219	=item $cf::RUNTIME
90		220
91	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
92	every server tick.	222	every server tick.
93		223
94	=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
95		227
96	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		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
99	=item $cf::NOW	239	=item $cf::LOAD
100		240
101	The time of the last (current) server tick.	241	The raw value load value from the last tick.
102
103	=item $cf::TICK
104
105	The interval between server ticks, in seconds.
106		242
107	=item %cf::CFG	243	=item %cf::CFG
108		244
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	246	from wherever your confdir points to.
111		247
		248	=item cf::wait_for_tick, cf::wait_for_tick_begin
		249
		250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		251	returns directly I<after> the tick processing (and consequently, can only wake one thread
		252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$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
112	=back	283	=back
113		284
114	=cut	285	=cut
115		286
116	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
117	*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 {
118	my $msg = join "", @_;	294	my $msg = join "", @_;
119	utf8::encode $msg;
120		295
121	$msg .= "\n"	296	$msg .= "\n"
122	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
123		298
124	LOG llevError, "cfperl: $msg";	299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	300
126	}	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	};
127		317
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		325
135	# 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
136	# within the Safe compartment.	327	# within the Safe compartment.
137	for my $pkg (qw(	328	for my $pkg (qw(
138	cf::global cf::attachable	329	cf::global cf::attachable
139	cf::object cf::object::player	330	cf::object cf::object::player
140	cf::client cf::player	331	cf::client cf::player
141	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
142	cf::map cf::party cf::region	334	cf::party cf::region
143	)) {	335	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	337	}
147		338
148	$Event::DIED = sub {	339	$EV::DIED = sub {
149	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
150	};	341	};
151		342
152	my %ext_pkg;	343	#############################################################################
153	my @exts;	344
154	my @hook;	345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
155		349
156	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
157		351
158	=over 4	352	=over 4
159		353
160	=cut	354	=item dumpval $ref
161		355
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	356	=cut
163		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
164	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
165		392
166	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
167		394
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	395	=item $json = cf::encode_json $ref
176		396
177	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
178		398
179	=cut	399	=cut
180		400
181	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		402
186	=item my $guard = cf::guard { BLOCK }	403	sub encode_json($) { $json_coder->encode ($_[0]) }
		404	sub decode_json($) { $json_coder->decode ($_[0]) }
187		405
188	Run the given callback when the guard object gets destroyed (useful for	406	=item $ref = cf::decode_storable $scalar
189	coroutine cancellations).
190		407
191	You can call C<< ->cancel >> on the guard object to stop the block from	408	Same as Coro::Storable::thaw, so blocks.
192	being executed.
193		409
194	=cut	410	=cut
195		411
196	sub guard(&) {	412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		413
200	sub cf::guard::cancel {	414	=item $ref = cf::decode_yaml $scalar
201	${$_[0]} = sub { };
202	}
203		415
204	sub cf::guard::DESTROY {	416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
205	${$_[0]}->();	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	}
206	}	466	}
207		467
208	=item cf::lock_wait $string	468	=item cf::lock_wait $string
209		469
210	Wait until the given lock is available. See cf::lock_acquire.	470	Wait until the given lock is available. See cf::lock_acquire.
211		471
212	=item my $lock = cf::lock_acquire $string	472	=item my $lock = cf::lock_acquire $string
213		473
214	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
215	a 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,
216	for example when the coroutine gets canceled), the lock is automatically	476	for example when the coroutine gets canceled), the lock is automatically
217	returned.	477	returned.
218		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
219	Lock names should begin with a unique identifier (for example, find_map	482	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	483	uses map_find and cf::map::load uses map_load).
221		484
222	=cut	485	=item $locked = cf::lock_active $string
223		486
224	our %LOCK;	487	Return true if the lock is currently active, i.e. somebody has locked it.
		488
		489	=cut
		490
		491	our $LOCKS = new Coro::SemaphoreSet;
225		492
226	sub lock_wait($) {	493	sub lock_wait($) {
227	my ($key) = @_;	494	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	495	}
235		496
236	sub lock_acquire($) {	497	sub lock_acquire($) {
237	my ($key) = @_;	498	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	499	}
		500
		501	sub lock_active($) {
		502	$LOCKS->count ($_[0]) < 1
		503	}
		504
		505	sub freeze_mainloop {
		506	tick_inhibit_inc;
		507
		508	&Guard::guard (\&tick_inhibit_dec);
		509	}
		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($$) {
		519	my ($interval, $cb) = @_;
		520
		521	my $start = rand List::Util::min 180, $interval;
		522
		523	EV::periodic $start, $interval, 0, $cb
		524	}
		525
		526	=item cf::get_slot $time[, $priority[, $name]]
		527
		528	Allocate $time seconds of blocking CPU time at priority C<$priority>
		529	(default: 0): This call blocks and returns only when you have at least
		530	C<$time> seconds of cpu time till the next tick. The slot is only valid
		531	till the next cede.
		532
		533	Background jobs should use a priority les than zero, interactive jobs
		534	should use 100 or more.
		535
		536	The optional C<$name> can be used to identify the job to run. It might be
		537	used for statistical purposes and should identify the same time-class.
		538
		539	Useful for short background jobs.
		540
		541	=cut
		542
		543	our @SLOT_QUEUE;
		544	our $SLOT_QUEUE;
		545	our $SLOT_DECAY = 0.9;
		546
		547	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		548	$SLOT_QUEUE = Coro::async {
		549	$Coro::current->desc ("timeslot manager");
		550
		551	my $signal = new Coro::Signal;
		552	my $busy;
		553
		554	while () {
		555	next_job:
		556
		557	my $avail = cf::till_tick;
		558
		559	for (0 .. $#SLOT_QUEUE) {
		560	if ($SLOT_QUEUE[$_][0] <= $avail) {
		561	$busy = 0;
		562	my $job = splice @SLOT_QUEUE, $_, 1, ();
		563	$job->[2]->send;
		564	Coro::cede;
		565	goto next_job;
		566	} else {
		567	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		568	}
		569	}
		570
		571	if (@SLOT_QUEUE) {
		572	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		573	$WAIT_FOR_TICK->wait;
		574	} else {
		575	$busy = 0;
		576	Coro::schedule;
		577	}
		578	}
		579	};
		580
		581	sub get_slot($;$$) {
		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	$sig->wait;
		594	}
		595
		596	=item cf::async { BLOCK }
		597
		598	Currently the same as Coro::async_pool, meaning you cannot use
		599	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		600	thing you are allowed to do is call C<prio> on it.
		601
		602	=cut
		603
		604	BEGIN { *async = \&Coro::async_pool }
249		605
250	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
251		607
252	The design of crossfire+ requires that the main coro ($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	local $FREEZE = 1;	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; $coro = async {	673	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		674
313	$coro->on_destroy (sub {	675	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	676	delete $EXT_CORO{$coro+0};
315	});	677	});
316	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
317		679
318	$coro	680	$coro
319	}	681	}
320		682
321	sub write_runtime {	683	=item fork_call { }, @args
322	my $runtime = cf::localdir . "/runtime";
323		684
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	685	Executes the given code block with the given arguments in a seperate
325	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.
326		689
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	690	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		691
331	aio_fsync $fh	692	sub post_fork {
332	and return;	693	reset_signals;
		694	}
333		695
334	close $fh	696	sub fork_call(&@) {
335	or return;	697	my ($cb, @args) = @_;
336		698
337	aio_rename "$runtime~", $runtime	699	# we seemingly have to make a local copy of the whole thing,
338	and return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
339		702
		703	my @res = Coro::Util::fork_eval {
		704	cf::post_fork;
		705	&$cb
		706	} @args;
		707
		708	wantarray ? @res : $res[-1]
		709	}
		710
		711	sub objinfo {
340	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 => $type });
341	}	886	}
342		887
343	=back	888	=back
344		889
345	=cut	890	=cut
346		891
347	#############################################################################	892	#############################################################################
348		893
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
470		895
471	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
472	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")
473	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
474		899
475	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>
476	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
477	crossfire+).	902	Deliantra).
478		903
479	=over 4	904	=over 4
480		905
481	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
482		907
…		…
526	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
527		952
528	Register an attachment by C<$name> through which attachable objects of the	953	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
530		955
531	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
532	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.
533		958
534	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
535		960
536	=over 4	961	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	1022	our @CB_MAP = ();
598		1023
599	my %attachment;	1024	my %attachment;
600		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
601	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
603		1034
604	use sort 'stable';	1035	use sort 'stable';
605		1036
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
640		1071
641	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		1076
646	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
648		1079
649	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
654		1085
655	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
656	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
657		1088
658	} elsif (ref $type) {	1089	} elsif (ref $type) {
659	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
660		1091
661	} else {	1092	} else {
662	shift @arg;	1093	shift @arg;
663	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
664	}	1095	}
665	}	1096	}
666	}	1097	}
667		1098
668	sub _object_attach {	1099	sub _object_attach {
…		…
678	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
679	}	1110	}
680		1111
681	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
682	} else {	1113	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
684	}	1115	}
685		1116
686	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
687	}	1118	}
688		1119
…		…
690	if (ref $_[0]) {	1121	if (ref $_[0]) {
691	_object_attach @_;	1122	_object_attach @_;
692	} else {	1123	} else {
693	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
694	}	1125	}
		1126	_recalc_want;
695	};	1127	};
696		1128
697	# all those should be optimised	1129	# all those should be optimised
698	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1135	reattach ($obj);
704	} else {	1136	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
706	}	1138	}
		1139	_recalc_want;
707	};	1140	};
708		1141
709	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
711		1144
…		…
726	";	1159	";
727	die if $@;	1160	die if $@;
728	}	1161	}
729		1162
730	our $override;	1163	our $override;
731	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?
732		1165
733	sub override {	1166	sub override {
734	$override = 1;	1167	$override = 1;
735	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
736	}	1169	}
737		1170
738	sub do_invoke {	1171	sub do_invoke {
739	my $event = shift;	1172	my $event = shift;
740	my $callbacks = shift;	1173	my $callbacks = shift;
741		1174
742	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
743		1176
744	local $override;	1177	local $override;
745		1178
746	for (@$callbacks) {	1179	for (@$callbacks) {
747	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
748		1181
749	if ($@) {	1182	if ($@) {
750	warn "$@";
751	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
752	override;	1184	override;
753	}	1185	}
754		1186
755	return 1 if $override;	1187	return 1 if $override;
756	}	1188	}
757		1189
758	0	1190	0
759	}	1191	}
760		1192
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1194
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1196
765	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
766		1198
767	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
768	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
769	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1202
771	=back	1203	=back
772		1204
773	=cut	1205	=cut
774		1206
775	#############################################################################	1207	#############################################################################
776	# 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	}
777		1251
778	sub reattach {	1252	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
780	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
781		1258
782	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
783		1260
784	@$registry = ();	1261	@$registry = ();
785		1262
…		…
790	for (@$attach) {	1267	for (@$attach) {
791	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
792	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
793	}	1270	}
794	} else {	1271	} else {
795	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
796	}	1273	}
797	}	1274	}
798	}	1275	}
799		1276
800	cf::attachable->attach (	1277	cf::attachable->attach (
801	prio => -1000000,	1278	prio => -1000000,
802	on_instantiate => sub {	1279	on_instantiate => sub {
803	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
804		1281
805	$data = from_json $data;	1282	$data = decode_json $data;
806		1283
807	for (@$data) {	1284	for (@$data) {
808	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
809		1286
810	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1303	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
828		1305
829	sync_job {	1306	sync_job {
830	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
833		1312
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$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;
837	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
838	close $fh;	1320	aio_close $fh;
839		1321
840	if (@$objs) {	1322	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	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;
845	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
846	close $fh;	1331	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
848	}	1333	}
849	} else {	1334	} else {
850	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
851	}	1336	}
852		1337
853	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1342	} else {
855	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
856	}	1344	}
857	} else {	1345	} else {
858	aio_unlink $filename;	1346	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
860	}	1348	}
861	}	1349	};
862	}	1350	}
863		1351
864	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
866		1354
…		…
878	or return;	1366	or return;
879		1367
880	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
882	or return;	1370	or return;
		1371
883	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
884	}	1374	}
885		1375
		1376	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
888	return ($data, $av);	1381	($data, $av)
889	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
890		1389
891	#############################################################################	1390	#############################################################################
892	# command handling &c	1391	# command handling &c
893		1392
894	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1407	}
909		1408
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1410
912	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.
913		1416
914	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
915	called.	1418	called.
916		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
917	=cut	1431	=cut
918		1432
919	sub register_extcmd {	1433	sub register_extcmd {
920	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
921		1435
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1436	$EXTCMD{$name} = $cb;
926	}	1437	}
		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
927		1446
928	cf::player->attach (	1447	cf::player->attach (
929	on_command => sub {	1448	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
931		1450
932	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
933	or return;	1452	or return;
934		1453
…		…
939	cf::override;	1458	cf::override;
940	},	1459	},
941	on_extcmd => sub {	1460	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
943		1462
944	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1464
946	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
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1473	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1474	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1475	}
		1476
		1477	$pl->ext_reply ($reply, @reply)
		1478	if $reply;
		1479
952	} else {	1480	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1481	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1482	}
955		1483
956	cf::override;	1484	cf::override;
957	},	1485	},
958	);	1486	);
959		1487
960	sub register {	1488	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1489	sub cache_extensions {
967	my ($path) = @_;	1490	my $grp = IO::AIO::aio_group;
968		1491
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1492	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1493	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1494	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974
975	warn "loading '$path' into '$pkg'\n";
976
977	open my $fh, "<:utf8", $path
978	or die "$path: $!";
979
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }
1009
1010	# remove commands
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}	1495	}
1019	}	1496	};
1020		1497
1021	# remove extcmds	1498	$grp
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	1499	}
1035		1500
1036	sub load_extensions {	1501	sub load_extensions {
		1502	info "loading extensions...";
		1503
		1504	cf::sync_job {
		1505	my %todo;
		1506
1037	for my $ext (<$LIBDIR/*.ext>) {	1507	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1508	next unless -r $path;
1039	eval {	1509
1040	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	}
1041	1	1573	}
1042	} 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	}
1043	}	1586	};
1044	}	1587	}
1045		1588
1046	#############################################################################	1589	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1590
1049	*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($) {
1050	my ($map) = @_;	1645	my ($login) = @_;
1051		1646
1052	my $path = $map->tmpname;	1647	$cf::PLAYER{$login}
1053	defined $path or return;	1648	or !aio_stat path $login
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}	1649	}
1066		1650
1067	# 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
1068	cf::player->attach (	1678	cf::player->attach (
1069	on_load => sub {	1679	on_load => sub {
1070	my ($pl, $path) = @_;	1680	my ($pl, $path) = @_;
1071		1681
1072	for my $o (all_objects $pl->ob) {	1682	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1683	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1684
1076	%$o = %{ Storable::thaw pack "H*", $value };	1685	$pl->ob->current_weapon ($slots->[0]);
1077	}	1686	$pl->combat_ob ($slots->[1]);
1078	}	1687	$pl->ranged_ob ($slots->[2]);
1079	},	1688	},
1080	);	1689	);
1081		1690
1082	#############################################################################	1691	sub save($) {
		1692	my ($pl) = @_;
1083		1693
1084	=head2 CORE EXTENSIONS	1694	return if $pl->{deny_save};
1085		1695
1086	Functions and methods that extend core crossfire objects.	1696	my $path = path $pl;
		1697	my $guard = cf::lock_acquire "user_save:$path";
1087		1698
1088	=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($$@) {
		1872	my ($self, $type, @msg) = @_;
		1873
		1874	$self->ns->ext_msg ($type, @msg);
		1875	}
		1876
		1877	=head3 cf::region
1089		1878
1090	=over 4	1879	=over 4
1091		1880
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1881	=cut
1097		1882
1098	sub cf::player::exists($) {	1883	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1884
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1885	=item cf::region::find_by_path $path
1104		1886
1105	Sends an ext reply to the player.	1887	Tries to decuce the likely region for a map knowing only its path.
1106		1888
1107	=cut	1889	=cut
1108		1890
1109	sub cf::player::ext_reply($$$%) {	1891	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1892	my ($path) = @_;
1111		1893
1112	$msg{msgid} = $id;	1894	$path =~ s/^~[^\/]*//; # skip ~login
1113		1895
1114	$self->send ("ext " . to_json \%msg);	1896	my ($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
1115	}	1906	}
1116		1907
1117	=back	1908	=back
1118
1119		1909
1120	=head3 cf::map	1910	=head3 cf::map
1121		1911
1122	=over 4	1912	=over 4
1123		1913
…		…
1126	package cf::map;	1916	package cf::map;
1127		1917
1128	use Fcntl;	1918	use Fcntl;
1129	use Coro::AIO;	1919	use Coro::AIO;
1130		1920
		1921	use overload
		1922	'""' => \&as_string,
		1923	fallback => 1;
		1924
1131	our $MAX_RESET = 7200;	1925	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1926	our $DEFAULT_RESET = 3000;
1133		1927
1134	sub generate_random_map {	1928	sub generate_random_map {
		1929	my ($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 {
1135	my ($path, $rmp) = @_;	1967	my ($path, $base) = @_;
1136		1968
1137	# mit "rum" bekleckern, nicht	1969	$path = "$path"; # make sure it's a string
1138	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
1139	$path,	1998	$path
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})
1151	}	1999	}
1152		2000
1153	# and all this just because we cannot iterate over	2001	sub new_from_path {
1154	# all maps in C++...	2002	my (undef, $path, $base) = @_;
1155	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 '$base')";
		2018	()
		2019	}
		2020
		2021	# may re-bless or do other evil things
		2022	sub init {
1156	my ($change) = @_;	2023	my ($self) = @_;
1157		2024
1158	$_->change_map_light ($change)	2025	$self
1159	for grep $_->outdoor, values %cf::MAP;
1160	}	2026	}
1161		2027
		2028	sub as_string {
		2029	my ($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
1162	sub try_load_header($) {	2078	sub load_header_from($) {
1163	my ($path) = @_;	2079	my ($self, $path) = @_;
1164		2080
1165	utf8::encode $path;	2081	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	2082	my $f = new_from_file cf::object::thawer $path
1167	or return;	2083	or return;
1168		2084
1169	my $map = cf::map::new	2085	$self->_load_header ($f)
1170	or return;	2086	or return;
1171		2087
1172	$map->load_header ($path)	2088	local $MAP_LOADING{$self->{path}} = $self;
		2089	$f->resolve_delayed_derefs;
		2090
		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
1173	or return;	2138	or return;
		2139	$self->prepare_orig;
		2140	}
1174		2141
1175	$map->{load_path} = $path;	2142	$self->{deny_reset} = 1
		2143	if $self->no_reset;
1176		2144
1177	$map	2145	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	2146	unless $self->default_region;
1179		2147
		2148	1
		2149	}
		2150
		2151	sub find;
1180	sub find_map {	2152	sub find {
1181	my ($path, $origin) = @_;	2153	my ($path, $origin) = @_;
1182		2154
1183	#warn "find_map<$path,$origin>\n";#d#	2155	cf::cede_to_tick;
1184		2156
1185	$path = new cf::path $path, $origin && $origin->path;	2157	$path = normalise $path, $origin;
1186	my $key = $path->as_string;
1187		2158
1188	cf::lock_wait "map_find:$key";	2159	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1189
1190	$cf::MAP{$key} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	2160	my $guard2 = cf::lock_acquire "map_find:$path";
1192		2161
1193	# do it the slow way	2162	$cf::MAP{$path} || do {
1194	my $map = try_load_header $path->save_path;	2163	my $map = new_from_path cf::map $path
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	2164	or return;
1208		2165
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2166	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		2167
1222	if ($map->should_reset) {	2168	$map->load_header
		2169	or return;
		2170
		2171	if ($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;
1223	$map->reset;	2176	$map->reset;
1224	undef $guard;	2177	return find $path;
1225	$map = cf::map::find_map ($path)
1226	or return;
1227	}	2178	}
1228		2179
1229	$cf::MAP{$key} = $map	2180	$cf::MAP{$path} = $map
1230	}	2181	}
1231	}	2182	}
		2183
		2184	sub pre_load { }
		2185	#sub post_load { } # XS
1232		2186
1233	sub load {	2187	sub load {
1234	my ($self) = @_;	2188	my ($self) = @_;
1235		2189
		2190	local $self->{deny_reset} = 1; # loading can take a long time
		2191
1236	my $path = $self->{path};	2192	my $path = $self->{path};
		2193
		2194	{
1237	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2195	my $guard = cf::lock_acquire "map_data:$path";
1238		2196
1239	return if $self->in_memory != cf::MAP_SWAPPED;	2197	return unless $self->valid;
		2198	return unless $self->state == cf::MAP_SWAPPED;
1240		2199
1241	$self->in_memory (cf::MAP_LOADING);
1242
1243	$self->alloc;	2200	$self->alloc;
1244	$self->load_objects ($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)
1245	or return;	2209	or return;
1246		2210
1247	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2211	$self->post_load_original
1248	if delete $self->{load_original};	2212	if delete $self->{load_original};
1249		2213
1250	if (my $uniq = $path->uniq_path) {	2214	if (my $uniq = $self->uniq_path) {
1251	utf8::encode $uniq;	2215	utf8::encode $uniq;
1252	if (aio_open $uniq, O_RDONLY, 0) {	2216	unless (aio_stat $uniq) {
		2217	if (my $f = new_from_file cf::object::thawer $uniq) {
1253	$self->clear_unique_items;	2218	$self->clear_unique_items;
1254	$self->load_objects ($uniq, 0);	2219	$self->_load_objects ($f);
		2220	$f->resolve_delayed_derefs;
		2221	}
		2222	}
1255	}	2223	}
1256	}
1257		2224
		2225	$f->resolve_delayed_derefs;
		2226	} else {
		2227	$self->post_load_original
		2228	if delete $self->{load_original};
		2229	}
		2230
		2231	$self->state (cf::MAP_INACTIVE);
		2232
		2233	cf::cede_to_tick;
1258	# now do the right thing for maps	2234	# now do the right thing for maps
1259	$self->link_multipart_objects;	2235	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	2236	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	2237	unless $self->difficulty;
1271	$self->activate;	2238	cf::cede_to_tick;
		2239
		2240	unless ($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
1272	}	2254	1
1273
1274	$self->in_memory (cf::MAP_IN_MEMORY);
1275	}	2255	}
1276		2256
1277	sub load_map_sync {	2257	# customize the map for a given player, i.e.
		2258	# return the _real_ map. used by e.g. per-player
		2259	# maps to change the path to ~playername/mappath
		2260	sub customise_for {
		2261	my ($self, $ob) = @_;
		2262
		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	$self
		2270	}
		2271
		2272	sub find_sync {
1278	my ($path, $origin) = @_;	2273	my ($path, $origin) = @_;
1279		2274
1280	#warn "load_map_sync<$path, $origin>\n";#d#	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;
1281		2278
1282	cf::sync_job {	2279	find $path, $origin
1283	my $map = cf::map::find_map $path, $origin	2280	}
1284	or return;	2281
		2282	sub do_load_sync {
		2283	my ($map) = @_;
		2284
		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
1285	$map->load;	2289	$map->load;
1286	$map	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);
1287	}	2354	}
1288	}	2355	}
1289		2356
1290	sub save {	2357	sub save {
1291	my ($self) = @_;	2358	my ($self) = @_;
1292		2359
1293	$self->{last_save} = $cf::RUNTIME;	2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
1294		2361
1295	return unless $self->dirty;	2362	$self->_save;
1296
1297	my $save = $self->{path}->save_path; utf8::encode $save;
1298	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1299
1300	$self->{load_path} = $save;
1301
1302	return if $self->{deny_save};
1303
1304	if ($uniq) {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306	$self->save_objects ($uniq, cf::IO_UNIQUES);
1307	} else {
1308	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309	}
1310	}	2363	}
1311		2364
1312	sub swap_out {	2365	sub swap_out {
1313	my ($self) = @_;	2366	my ($self) = @_;
1314		2367
		2368	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2369
		2370	return if !$self->linkable;
		2371	return if $self->{deny_save};
1315	return if $self->players;	2372	return if $self->players;
1316	return if $self->in_memory != cf::MAP_IN_MEMORY;
1317	return if $self->{deny_save};
1318		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
1319	$self->save;	2380	$self->_save;
		2381
		2382	# then free the map
1320	$self->clear;	2383	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2384	}
1323		2385
1324	sub reset_at {	2386	sub reset_at {
1325	my ($self) = @_;	2387	my ($self) = @_;
1326		2388
1327	# TODO: safety, remove and allow resettable per-player maps	2389	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2390	return 1e99 if $self->{deny_reset};
1330		2391
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2392	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2393	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2394
…		…
1338	my ($self) = @_;	2399	my ($self) = @_;
1339		2400
1340	$self->reset_at <= $cf::RUNTIME	2401	$self->reset_at <= $cf::RUNTIME
1341	}	2402	}
1342		2403
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2404	sub reset {
1365	my ($self) = @_;	2405	my ($self) = @_;
1366		2406
		2407	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2408
1367	return if $self->players;	2409	return if $self->players;
1368	return if $self->{path}{user_rel};#d#
1369		2410
1370	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	}
1371		2422
1372	delete $cf::MAP{$self->path};	2423	delete $cf::MAP{$self->path};
1373		2424
		2425	$self->deactivate;
1374	$_->clear_links_to ($self) for values %cf::MAP;	2426	$_->clear_links_to ($self) for values %cf::MAP;
		2427	$self->clear;
1375		2428
1376	$self->unlink_save;	2429	$self->unlink_save;
1377	$self->destroy;	2430	$self->destroy;
1378	}	2431	}
1379		2432
1380	my $nuke_counter = "aaaa";	2433	my $nuke_counter = "aaaa";
1381		2434
1382	sub nuke {	2435	sub nuke {
1383	my ($self) = @_;	2436	my ($self) = @_;
1384		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};
1385	$self->{deny_save} = 1;	2447	$self->{deny_save} = 1;
1386	$self->reset_timeout (1);	2448	$self->reset_timeout (1);
1387	$self->rename ("{nuke}/" . ($nuke_counter++));	2449	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2450
		2451	$cf::MAP{$self->path} = $self;
		2452	}
		2453
1388	$self->reset; # polite request, might not happen	2454	$self->reset; # polite request, might not happen
1389	}	2455	}
1390		2456
1391	sub customise_for {	2457	=item $maps = cf::map::tmp_maps
1392	my ($map, $ob) = @_;
1393		2458
1394	if ($map->per_player) {	2459	Returns an arrayref with all map paths of currently instantiated and saved
1395	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2460	maps. May block.
		2461
		2462	=cut
		2463
		2464	sub tmp_maps() {
1396	}	2465	[
1397		2466	map {
1398	$map	2467	utf8::decode $_;
		2468	/\.map$/
		2469	? normalise $_
		2470	: ()
		2471	} @{ aio_readdir $TMPDIR or [] }
		2472	]
1399	}	2473	}
1400		2474
1401	sub emergency_save {	2475	=item $maps = cf::map::random_maps
1402	local $cf::FREEZE = 1;
1403		2476
1404	warn "enter emergency map save\n";	2477	Returns an arrayref with all map paths of currently instantiated and saved
		2478	random maps. May block.
1405		2479
1406	cf::sync_job {	2480	=cut
1407	warn "begin emergency map save\n";	2481
1408	$_->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;
1409	};	2539	}
1410		2540
1411	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	}
1412	}	2596	}
1413		2597
1414	package cf;	2598	package cf;
1415		2599
1416	=back	2600	=back
1417
1418		2601
1419	=head3 cf::object::player	2602	=head3 cf::object::player
1420		2603
1421	=over 4	2604	=over 4
1422		2605
…		…
1425	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>
1426	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
1427	dialogue with the given NPC character.	2610	dialogue with the given NPC character.
1428		2611
1429	=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	};
1430		2627
1431	# rough implementation of a future "reply" method that works	2628	# rough implementation of a future "reply" method that works
1432	# with dialog boxes.	2629	# with dialog boxes.
1433	#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
1434	sub cf::object::player::reply($$$;$) {	2631	sub cf::object::player::reply($$$;$) {
…		…
1436		2633
1437	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1438		2635
1439	if ($self->{record_replies}) {	2636	if ($self->{record_replies}) {
1440	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2638
1441	} 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 {
1442	$msg = $npc->name . " says: $msg" if $npc;	2647	$msg = $npc->name . " says: $msg" if $npc;
1443	$self->message ($msg, $flags);	2648	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2649	}
1444	}	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 (@_);
1445	}	2661	}
1446		2662
1447	=item $player_object->may ("access")	2663	=item $player_object->may ("access")
1448		2664
1449	Returns wether the given player is authorized to access resource "access"	2665	Returns wether the given player is authorized to access resource "access"
…		…
1462		2678
1463	=item $player_object->enter_link	2679	=item $player_object->enter_link
1464		2680
1465	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}>).
1466		2682
1467	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.
1468	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.
1469		2689
1470	=item $player_object->leave_link ($map, $x, $y)	2690	=item $player_object->leave_link ($map, $x, $y)
1471		2691
1472	Moves the player out of the specila link map onto the given map. If the	2692	Moves the player out of the special C<{link}> map onto the specified
1473	map is not valid (or omitted), the player will be moved back to the	2693	map. If the map is not valid (or omitted), the player will be moved back
1474	location he/she was before the call to C<enter_link>, or, if that fails,	2694	to the location he/she was before the call to C<enter_link>, or, if that
1475	to the emergency map position.	2695	fails, to the emergency map position.
1476		2696
1477	Might block.	2697	Might block.
1478		2698
1479	=cut	2699	=cut
		2700
		2701	sub link_map {
		2702	unless ($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	$LINK_MAP
		2709	}
1480		2710
1481	sub cf::object::player::enter_link {	2711	sub cf::object::player::enter_link {
1482	my ($self) = @_;	2712	my ($self) = @_;
1483		2713
1484	$self->deactivate_recursive;	2714	$self->deactivate_recursive;
1485		2715
1486	return if $self->map == $LINK_MAP;	2716	++$self->{_link_recursion};
		2717
		2718	return if UNIVERSAL::isa $self->map, "ext::map_link";
1487		2719
1488	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2720	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489	if $self->map;	2721	if $self->map && $self->map->{path} ne "{link}";
1490		2722
1491	$self->enter_map ($LINK_MAP, 20, 20);	2723	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1492	}	2724	}
1493		2725
1494	sub cf::object::player::leave_link {	2726	sub cf::object::player::leave_link {
1495	my ($self, $map, $x, $y) = @_;	2727	my ($self, $map, $x, $y) = @_;
		2728
		2729	return unless $self->contr->active;
1496		2730
1497	my $link_pos = delete $self->{_link_pos};	2731	my $link_pos = delete $self->{_link_pos};
1498		2732
1499	unless ($map) {	2733	unless ($map) {
1500	# restore original map position	2734	# restore original map position
1501	($map, $x, $y) = @{ $link_pos || [] };	2735	($map, $x, $y) = @{ $link_pos || [] };
1502	$map = cf::map::find_map $map;	2736	$map = cf::map::find $map;
1503		2737
1504	unless ($map) {	2738	unless ($map) {
1505	($map, $x, $y) = @$EMERGENCY_POSITION;	2739	($map, $x, $y) = @$EMERGENCY_POSITION;
1506	$map = cf::map::find_map $map	2740	$map = cf::map::find $map
1507	or die "FATAL: cannot load emergency map\n";	2741	or die "FATAL: cannot load emergency map\n";
1508	}	2742	}
1509	}	2743	}
1510		2744
1511	($x, $y) = (-1, -1)	2745	($x, $y) = (-1, -1)
1512	unless (defined $x) && (defined $y);	2746	unless (defined $x) && (defined $y);
1513		2747
1514	# use -1 or undef as default coordinates, not 0, 0	2748	# use -1 or undef as default coordinates, not 0, 0
1515	($x, $y) = ($map->enter_x, $map->enter_y)	2749	($x, $y) = ($map->enter_x, $map->enter_y)
1516	if $x <=0 && $y <= 0;	2750	if $x <= 0 && $y <= 0;
1517		2751
1518	$map->load;	2752	$map->load;
1519		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
1520	$self->activate_recursive;	2761	$self->activate_recursive;
1521	$self->enter_map ($map, $x, $y);
1522	}
1523
1524	cf::player->attach (
1525	on_logout => sub {
1526	my ($pl) = @_;
1527
1528	# abort map switching before logout
1529	if ($pl->ob->{_link_pos}) {
1530	cf::sync_job {
1531	$pl->ob->leave_link
1532	};
1533	}
1534	},	2762	}
1535	on_login => sub {
1536	my ($pl) = @_;
1537		2763
1538	# try to abort aborted map switching on player login :)	2764	}
1539	# should happen only on crashes
1540	if ($pl->ob->{_link_pos}) {
1541	$pl->ob->enter_link;
1542	Coro::async {
1543	# we need this sleep as the login has a concurrent enter_exit running
1544	# and this sleep increases chances of the player not ending up in scorn
1545	Coro::Timer::sleep 1;
1546	$pl->ob->leave_link;
1547	};
1548	}
1549	},
1550	);
1551		2765
1552	=item $player_object->goto_map ($path, $x, $y)	2766	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1553		2767
1554	=cut	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.
1555		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
		2777	=cut
		2778
		2779	our $GOTOGEN;
		2780
1556	sub cf::object::player::goto_map {	2781	sub cf::object::player::goto {
1557	my ($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;
1558		2792
1559	$self->enter_link;	2793	$self->enter_link;
1560		2794
1561	(Coro::async {	2795	(async {
1562	$path = new cf::path $path;	2796	$Coro::current->{desc} = "player::goto $path $x $y";
1563		2797
1564	my $map = cf::map::find_map $path->as_string;	2798	# *tag paths override both path and x|y
		2799	if ($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) {
1565	$map = $map->customise_for ($self) if $map;	2821	$map = $map->customise_for ($self);
1566		2822	$map = $check->($map, $x, $y, $self) if $check && $map;
1567	# warn "entering ", $map->path, " at ($x, $y)\n"	2823	} else {
1568	# if $map;
1569
1570	$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	}
1571		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};
1572	$self->leave_link ($map, $x, $y);	2837	$self->leave_link ($map, $x, $y);
		2838	}
		2839
		2840	$done->($self) if $done;
1573	})->prio (1);	2841	})->prio (1);
1574	}	2842	}
1575		2843
1576	=item $player_object->enter_exit ($exit_object)	2844	=item $player_object->enter_exit ($exit_object)
1577		2845
…		…
1579		2847
1580	sub parse_random_map_params {	2848	sub parse_random_map_params {
1581	my ($spec) = @_;	2849	my ($spec) = @_;
1582		2850
1583	my $rmp = { # defaults	2851	my $rmp = { # defaults
1584	xsize => 10,	2852	xsize => (cf::rndm 15, 40),
1585	ysize => 10,	2853	ysize => (cf::rndm 15, 40),
		2854	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2855	#layout => string,
1586	};	2856	};
1587		2857
1588	for (split /\n/, $spec) {	2858	for (split /\n/, $spec) {
1589	my ($k, $v) = split /\s+/, $_, 2;	2859	my ($k, $v) = split /\s+/, $_, 2;
1590		2860
…		…
1602	# that depends on the exit object	2872	# that depends on the exit object
1603		2873
1604	my $rmp = parse_random_map_params $exit->msg;	2874	my $rmp = parse_random_map_params $exit->msg;
1605		2875
1606	if ($exit->map) {	2876	if ($exit->map) {
1607	$rmp->{region} = $exit->map->region_name;	2877	$rmp->{region} = $exit->region->name;
1608	$rmp->{origin_map} = $exit->map->path;	2878	$rmp->{origin_map} = $exit->map->path;
1609	$rmp->{origin_x} = $exit->x;	2879	$rmp->{origin_x} = $exit->x;
1610	$rmp->{origin_y} = $exit->y;	2880	$rmp->{origin_y} = $exit->y;
		2881
		2882	$exit->map->touch;
1611	}	2883	}
1612		2884
1613	$rmp->{random_seed} ||= $exit->random_seed;	2885	$rmp->{random_seed} ||= $exit->random_seed;
1614		2886
1615	my $data = cf::to_json $rmp;	2887	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1616	my $md5 = Digest::MD5::md5_hex $data;	2888	my $md5 = Digest::MD5::md5_hex $data;
		2889	my $meta = "$RANDOMDIR/$md5.meta";
1617		2890
1618	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) {
1619	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;
1620		2895
		2896	my $slaying = "?random/$md5";
		2897
		2898	if ($exit->valid) {
1621	$exit->slaying ("?random/$md5");	2899	$exit->slaying ("?random/$md5");
1622	$exit->msg (undef);	2900	$exit->msg (undef);
		2901	}
1623	}	2902	}
1624	}	2903	}
1625		2904
1626	sub cf::object::player::enter_exit {	2905	sub cf::object::player::enter_exit {
1627	my ($self, $exit) = @_;	2906	my ($self, $exit) = @_;
1628		2907
1629	return unless $self->type == cf::PLAYER;	2908	return unless $self->type == cf::PLAYER;
1630		2909
1631	$self->enter_link;	2910	$self->enter_link;
1632		2911
1633	(Coro::async {	2912	(async {
		2913	$Coro::current->{desc} = "enter_exit";
		2914
1634	unless (eval {	2915	unless (eval {
		2916	$self->deactivate_recursive; # just to be sure
1635		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
1636	prepare_random_map $exit	2929	prepare_random_map $exit
		2930	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2931
1637	if $exit->slaying eq "/!";	2932	$map = $exit->slaying;
1638		2933
1639	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2934	} elsif ($slaying eq '!up') {
1640	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2935	$map = $exit->map->tile_path (cf::TILE_UP);
		2936	$x = $exit->x;
		2937	$y = $exit->y;
1641		2938
		2939	} elsif ($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
1642	1;	2951	1
1643	}) {	2952	}) {
1644	$self->message ("Something went wrong deep within the crossfire server. "	2953	$self->message ("Something went wrong deep within the deliantra server. "
1645	. "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. "
1646	. "Please report this to the dungeon master",	2955	. "Please report this to the dungeon master!",
1647	cf::NDI_UNIQUE | cf::NDI_RED);	2956	cf::NDI_UNIQUE | cf::NDI_RED);
1648		2957
1649	warn "ERROR in enter_exit: $@";	2958	error "ERROR in enter_exit: $@";
1650	$self->leave_link;	2959	$self->leave_link;
1651	}	2960	}
1652	})->prio (1);	2961	})->prio (1);
1653	}	2962	}
1654		2963
…		…
1665		2974
1666	sub cf::client::send_drawinfo {	2975	sub cf::client::send_drawinfo {
1667	my ($self, $text, $flags) = @_;	2976	my ($self, $text, $flags) = @_;
1668		2977
1669	utf8::encode $text;	2978	utf8::encode $text;
1670	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2979	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1671	}	2980	}
1672		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	}
1673		3203
1674	=item $success = $client->query ($flags, "text", \&cb)	3204	=item $success = $client->query ($flags, "text", \&cb)
1675		3205
1676	Queues a query to the client, calling the given callback with	3206	Queues a query to the client, calling the given callback with
1677	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>,
1678	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>.
1679		3209
1680	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
1681	reliable at some point in the future.	3211	become reliable at some point in the future.
1682		3212
1683	=cut	3213	=cut
1684		3214
1685	sub cf::client::query {	3215	sub cf::client::query {
1686	my ($self, $flags, $text, $cb) = @_;	3216	my ($self, $flags, $text, $cb) = @_;
…		…
1694	utf8::encode $text;	3224	utf8::encode $text;
1695	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3225	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1696		3226
1697	$self->send_packet ($self->{query_queue}[0][0])	3227	$self->send_packet ($self->{query_queue}[0][0])
1698	if @{ $self->{query_queue} } == 1;	3228	if @{ $self->{query_queue} } == 1;
		3229
		3230	1
1699	}	3231	}
1700		3232
1701	cf::client->attach (	3233	cf::client->attach (
		3234	on_connect => sub {
		3235	my ($ns) = @_;
		3236
		3237	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3238	},
1702	on_reply => sub {	3239	on_reply => sub {
1703	my ($ns, $msg) = @_;	3240	my ($ns, $msg) = @_;
1704		3241
1705	# this weird shuffling is so that direct followup queries	3242	# this weird shuffling is so that direct followup queries
1706	# get handled first	3243	# get handled first
1707	my $queue = delete $ns->{query_queue};	3244	my $queue = delete $ns->{query_queue}
		3245	or return; # be conservative, not sure how that can happen, but we saw a crash here
1708		3246
1709	(shift @$queue)->[1]->($msg);	3247	(shift @$queue)->[1]->($msg);
		3248	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710		3249
1711	push @{ $ns->{query_queue} }, @$queue;	3250	push @{ $ns->{query_queue} }, @$queue;
1712		3251
1713	if (@{ $ns->{query_queue} } == @$queue) {	3252	if (@{ $ns->{query_queue} } == @$queue) {
1714	if (@$queue) {	3253	if (@$queue) {
…		…
1716	} else {	3255	} else {
1717	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3256	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1718	}	3257	}
1719	}	3258	}
1720	},	3259	},
		3260	on_exticmd => sub {
		3261	my ($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	},
1721	);	3286	);
1722		3287
1723	=item $client->coro (\&cb)	3288	=item $client->async (\&cb)
1724		3289
1725	Create a new coroutine, running the specified callback. The coroutine will	3290	Create a new coroutine, running the specified callback. The coroutine will
1726	be automatically cancelled when the client gets destroyed (e.g. on logout,	3291	be automatically cancelled when the client gets destroyed (e.g. on logout,
1727	or loss of connection).	3292	or loss of connection).
1728		3293
1729	=cut	3294	=cut
1730		3295
1731	sub cf::client::coro {	3296	sub cf::client::async {
1732	my ($self, $cb) = @_;	3297	my ($self, $cb) = @_;
1733		3298
1734	my $coro; $coro = async {	3299	my $coro = &Coro::async ($cb);
1735	eval {
1736	$cb->();
1737	};
1738	warn $@ if $@;
1739	};
1740		3300
1741	$coro->on_destroy (sub {	3301	$coro->on_destroy (sub {
1742	delete $self->{_coro}{$coro+0};	3302	delete $self->{_coro}{$coro+0};
1743	});	3303	});
1744		3304
…		…
1746		3306
1747	$coro	3307	$coro
1748	}	3308	}
1749		3309
1750	cf::client->attach (	3310	cf::client->attach (
1751	on_destroy => sub {	3311	on_client_destroy => sub {
1752	my ($ns) = @_;	3312	my ($ns) = @_;
1753		3313
1754	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3314	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1755	},	3315	},
1756	);	3316	);
…		…
1771	our $safe = new Safe "safe";	3331	our $safe = new Safe "safe";
1772	our $safe_hole = new Safe::Hole;	3332	our $safe_hole = new Safe::Hole;
1773		3333
1774	$SIG{FPE} = 'IGNORE';	3334	$SIG{FPE} = 'IGNORE';
1775		3335
1776	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3336	$safe->permit_only (Opcode::opset qw(
		3337	:base_core :base_mem :base_orig :base_math :base_loop
		3338	grepstart grepwhile mapstart mapwhile
		3339	sort time
		3340	));
1777		3341
1778	# here we export the classes and methods available to script code	3342	# here we export the classes and methods available to script code
1779		3343
1780	=pod	3344	=pod
1781		3345
1782	The following fucntions and emthods are available within a safe environment:	3346	The following functions and methods are available within a safe environment:
1783		3347
1784	cf::object contr pay_amount pay_player map	3348	cf::object
		3349	contr pay_amount pay_player map x y force_find force_add destroy
		3350	insert remove name archname title slaying race decrease split
		3351	value
		3352
1785	cf::object::player player	3353	cf::object::player
1786	cf::player peaceful	3354	player
1787	cf::map trigger	3355
		3356	cf::player
		3357	peaceful
		3358
		3359	cf::map
		3360	trigger
1788		3361
1789	=cut	3362	=cut
1790		3363
1791	for (	3364	for (
1792	["cf::object" => qw(contr pay_amount pay_player map)],	3365	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3366	insert remove inv nrof name archname title slaying race
		3367	decrease split destroy change_exp value msg lore send_msg)],
1793	["cf::object::player" => qw(player)],	3368	["cf::object::player" => qw(player)],
1794	["cf::player" => qw(peaceful)],	3369	["cf::player" => qw(peaceful send_msg)],
1795	["cf::map" => qw(trigger)],	3370	["cf::map" => qw(trigger)],
1796	) {	3371	) {
1797	no strict 'refs';
1798	my ($pkg, @funs) = @$_;	3372	my ($pkg, @funs) = @$_;
1799	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3373	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1800	for @funs;	3374	for @funs;
1801	}	3375	}
1802		3376
…		…
1817		3391
1818	my $qcode = $code;	3392	my $qcode = $code;
1819	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3393	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1820	$qcode =~ s/\n/\\n/g;	3394	$qcode =~ s/\n/\\n/g;
1821		3395
		3396	%vars = (_dummy => 0) unless %vars;
		3397
		3398	my @res;
1822	local $_;	3399	local $_;
1823	local @safe::cf::_safe_eval_args = values %vars;
1824		3400
1825	my $eval =	3401	my $eval =
1826	"do {\n"	3402	"do {\n"
1827	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3403	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1828	. "#line 0 \"{$qcode}\"\n"	3404	. "#line 0 \"{$qcode}\"\n"
1829	. $code	3405	. $code
1830	. "\n}"	3406	. "\n}"
1831	;	3407	;
1832		3408
		3409	if ($CFG{safe_eval}) {
1833	sub_generation_inc;	3410	sub_generation_inc;
		3411	local @safe::cf::_safe_eval_args = values %vars;
1834	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3412	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1835	sub_generation_inc;	3413	sub_generation_inc;
		3414	} else {
		3415	local @cf::_safe_eval_args = values %vars;
		3416	@res = wantarray ? eval eval : scalar eval $eval;
		3417	}
1836		3418
1837	if ($@) {	3419	if ($@) {
1838	warn "$@";	3420	warn "$@",
1839	warn "while executing safe code '$code'\n";	3421	"while executing safe code '$code'\n",
1840	warn "with arguments " . (join " ", %vars) . "\n";	3422	"with arguments " . (join " ", %vars) . "\n";
1841	}	3423	}
1842		3424
1843	wantarray ? @res : $res[0]	3425	wantarray ? @res : $res[0]
1844	}	3426	}
1845		3427
…		…
1859	=cut	3441	=cut
1860		3442
1861	sub register_script_function {	3443	sub register_script_function {
1862	my ($fun, $cb) = @_;	3444	my ($fun, $cb) = @_;
1863		3445
1864	no strict 'refs';	3446	$fun = "safe::$fun" if $CFG{safe_eval};
1865	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3447	*$fun = $safe_hole->wrap ($cb);
1866	}	3448	}
1867		3449
1868	=back	3450	=back
1869		3451
1870	=cut	3452	=cut
1871		3453
1872	#############################################################################	3454	#############################################################################
		3455	# the server's init and main functions
1873		3456
1874	=head2 EXTENSION DATABASE SUPPORT	3457	sub load_facedata($) {
		3458	my ($path) = @_;
1875		3459
1876	Crossfire maintains a very simple database for extension use. It can	3460	# HACK to clear player env face cache, we need some signal framework
1877	currently store anything that can be serialised using Storable, which	3461	# for this (global event?)
1878	excludes objects.	3462	%ext::player_env::MUSIC_FACE_CACHE = ();
1879		3463
1880	The parameter C<$family> should best start with the name of the extension	3464	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1881	using it, it should be unique.
1882		3465
1883	=over 4	3466	trace "loading facedata from $path\n";
1884		3467
1885	=item $hashref = cf::db_get $family	3468	my $facedata = decode_storable load_file $path;
1886		3469
1887	Return a hashref for use by the extension C<$family>, which can be	3470	$facedata->{version} == 2
1888	modified. After modifications, you have to call C<cf::db_dirty> or	3471	or cf::cleanup "$path: version mismatch, cannot proceed.";
1889	C<cf::db_sync>.
1890		3472
1891	=item $value = cf::db_get $family => $key	3473	# patch in the exptable
1892		3474	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1893	Returns a single value from the database	3475	$facedata->{resource}{"res/exp_table"} = {
1894		3476	type => FT_RSRC,
1895	=item cf::db_put $family => $hashref	3477	data => $exp_table,
1896		3478	hash => (Digest::MD5::md5 $exp_table),
1897	Stores the given family hashref into the database. Updates are delayed, if
1898	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899
1900	=item cf::db_put $family => $key => $value
1901
1902	Stores the given C<$value> in the family hash. Updates are delayed, if you
1903	want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905	=item cf::db_dirty
1906
1907	Marks the database as dirty, to be updated at a later time.
1908
1909	=item cf::db_sync
1910
1911	Immediately write the database to disk I<if it is dirty>.
1912
1913	=cut
1914
1915	our $DB;
1916
1917	{
1918	my $path = cf::localdir . "/database.pst";
1919
1920	sub db_load() {
1921	$DB = stat $path ? Storable::retrieve $path : { };
1922	}
1923
1924	my $pid;
1925
1926	sub db_save() {
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	3479	};
		3480	cf::cede_to_tick;
1946		3481
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	3482	{
		3483	my $faces = $facedata->{faceinfo};
1951		3484
1952	sub db_get($;$) {	3485	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	3486	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}
1955	: ($DB->{$_[0]} ||= { })
1956	}
1957		3487
1958	sub db_put($$;$) {	3488	cf::face::set_visibility $idx, $info->{visibility};
1959	if (@_ >= 3) {	3489	cf::face::set_magicmap $idx, $info->{magicmap};
1960	$DB->{$_[0]}{$_[1]} = $_[2];	3490	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1961	} else {	3491	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1962	$DB->{$_[0]} = $_[1];	3492	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1963	}
1964	db_dirty;
1965	}
1966		3493
1967	cf::global->attach (	3494	cf::cede_to_tick;
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	3495	}
1972	);
1973	}
1974		3496
1975	#############################################################################	3497	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	3498	next unless $info->{smooth};
1977		3499
1978	sub cfg_load {	3500	my $idx = cf::face::find $face
1979	open my $fh, "<:utf8", cf::confdir . "/config"	3501	or next;
1980	or return;
1981		3502
1982	local $/;	3503	if (my $smooth = cf::face::find $info->{smooth}) {
1983	*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	}
		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
		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};
		3639
		3640	if (exists $CFG{mlockall}) {
		3641	eval {
		3642	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3643	and die "WARNING: m(un)lockall failed: $!\n";
		3644	};
		3645	warn $@ if $@;
		3646	}
		3647	}
		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;
1984	}	3675	}
1985		3676
1986	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
1987	# we must not ever block the main coroutine	3687	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3688	local $Coro::idle = sub {
1989	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#
1990	(Coro::unblock_sub {	3690	(async {
1991	Event::one_event;	3691	$Coro::current->{desc} = "IDLE BUG HANDLER";
1992	})->();	3692	EV::loop EV::LOOP_ONESHOT;
		3693	})->prio (Coro::PRIO_MAX);
1993	};	3694	};
1994		3695
1995	cfg_load;	3696	evthread_start IO::AIO::poll_fileno;
1996	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
1997	load_extensions;	3719	load_extensions;
1998	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	AE::postpone {
		3734	undef &main; # free gobs of memory :)
		3735	};
		3736
		3737	goto &main_loop;
1999	}	3738	}
2000		3739
2001	#############################################################################	3740	#############################################################################
2002	# initialisation	3741	# initialisation and cleanup
2003		3742
		3743	# install some emergency cleanup handlers
		3744	BEGIN {
		3745	our %SIGWATCHER = ();
		3746	for my $signal (qw(INT HUP TERM)) {
		3747	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3748	cf::cleanup "SIG$signal";
		3749	};
		3750	}
		3751	}
		3752
		3753	sub write_runtime_sync {
		3754	my $t0 = AE::time;
		3755
		3756	# first touch the runtime file to show we are still running:
		3757	# the fsync below can take a very very long time.
		3758
		3759	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3760
		3761	my $guard = cf::lock_acquire "write_runtime";
		3762
		3763	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3764	or return;
		3765
		3766	my $value = $cf::RUNTIME + 90 + 10;
		3767	# 10 is the runtime save interval, for a monotonic clock
		3768	# 60 allows for the watchdog to kill the server.
		3769
		3770	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3771	and return;
		3772
		3773	# always fsync - this file is important
		3774	aio_fsync $fh
		3775	and return;
		3776
		3777	# touch it again to show we are up-to-date
		3778	aio_utime $fh, undef, undef;
		3779
		3780	close $fh
		3781	or return;
		3782
		3783	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3784	and return;
		3785
		3786	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3787
		3788	1
		3789	}
		3790
		3791	our $uuid_lock;
		3792	our $uuid_skip;
		3793
		3794	sub write_uuid_sync($) {
		3795	$uuid_skip ||= $_[0];
		3796
		3797	return if $uuid_lock;
		3798	local $uuid_lock = 1;
		3799
		3800	my $uuid = "$LOCALDIR/uuid";
		3801
		3802	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3803	or return;
		3804
		3805	my $value = uuid_seq uuid_cur;
		3806
		3807	unless ($value) {
		3808	info "cowardly refusing to write zero uuid value!\n";
		3809	return;
		3810	}
		3811
		3812	my $value = uuid_str $value + $uuid_skip;
		3813	$uuid_skip = 0;
		3814
		3815	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3816	and return;
		3817
		3818	# always fsync - this file is important
		3819	aio_fsync $fh
		3820	and return;
		3821
		3822	close $fh
		3823	or return;
		3824
		3825	aio_rename "$uuid~", $uuid
		3826	and return;
		3827
		3828	trace "uuid file written ($value).\n";
		3829
		3830	1
		3831
		3832	}
		3833
		3834	sub write_uuid($$) {
		3835	my ($skip, $sync) = @_;
		3836
		3837	$sync ? write_uuid_sync $skip
		3838	: async { write_uuid_sync $skip };
		3839	}
		3840
		3841	sub emergency_save() {
		3842	my $freeze_guard = cf::freeze_mainloop;
		3843
		3844	info "emergency_perl_save: enter\n";
		3845
		3846	# this is a trade-off: we want to be very quick here, so
		3847	# save all maps without fsync, and later call a global sync
		3848	# (which in turn might be very very slow)
		3849	local $USE_FSYNC = 0;
		3850
		3851	cf::sync_job {
		3852	cf::write_runtime_sync; # external watchdog should not bark
		3853
		3854	# use a peculiar iteration method to avoid tripping on perl
		3855	# refcount bugs in for. also avoids problems with players
		3856	# and maps saved/destroyed asynchronously.
		3857	info "emergency_perl_save: begin player save\n";
		3858	for my $login (keys %cf::PLAYER) {
		3859	my $pl = $cf::PLAYER{$login} or next;
		3860	$pl->valid or next;
		3861	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3862	$pl->save;
		3863	}
		3864	info "emergency_perl_save: end player save\n";
		3865
		3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	info "emergency_perl_save: begin map save\n";
		3869	for my $path (keys %cf::MAP) {
		3870	my $map = $cf::MAP{$path} or next;
		3871	$map->valid or next;
		3872	$map->save;
		3873	}
		3874	info "emergency_perl_save: end map save\n";
		3875
		3876	cf::write_runtime_sync; # external watchdog should not bark
		3877
		3878	info "emergency_perl_save: begin database checkpoint\n";
		3879	BDB::db_env_txn_checkpoint $DB_ENV;
		3880	info "emergency_perl_save: end database checkpoint\n";
		3881
		3882	info "emergency_perl_save: begin write uuid\n";
		3883	write_uuid_sync 1;
		3884	info "emergency_perl_save: end write uuid\n";
		3885
		3886	cf::write_runtime_sync; # external watchdog should not bark
		3887
		3888	trace "emergency_perl_save: syncing database to disk";
		3889	BDB::db_env_txn_checkpoint $DB_ENV;
		3890
		3891	info "emergency_perl_save: starting sync\n";
		3892	IO::AIO::aio_sync sub {
		3893	info "emergency_perl_save: finished sync\n";
		3894	};
		3895
		3896	cf::write_runtime_sync; # external watchdog should not bark
		3897
		3898	trace "emergency_perl_save: flushing outstanding aio requests";
		3899	while (IO::AIO::nreqs || BDB::nreqs) {
		3900	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3901	}
		3902
		3903	cf::write_runtime_sync; # external watchdog should not bark
		3904	};
		3905
		3906	info "emergency_perl_save: leave\n";
		3907	}
		3908
		3909	sub post_cleanup {
		3910	my ($make_core) = @_;
		3911
		3912	IO::AIO::flush;
		3913
		3914	error Carp::longmess "post_cleanup backtrace"
		3915	if $make_core;
		3916
		3917	my $fh = pidfile;
		3918	unlink $PIDFILE if <$fh> == $$;
		3919	}
		3920
		3921	# a safer delete_package, copied from Symbol
		3922	sub clear_package($) {
		3923	my $pkg = shift;
		3924
		3925	# expand to full symbol table name if needed
		3926	unless ($pkg =~ /^main::.*::$/) {
		3927	$pkg = "main$pkg" if $pkg =~ /^::/;
		3928	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3929	$pkg .= '::' unless $pkg =~ /::$/;
		3930	}
		3931
		3932	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3933	my $stem_symtab = *{$stem}{HASH};
		3934
		3935	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3936	or return;
		3937
		3938	# clear all symbols
		3939	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3940	for my $name (keys %$leaf_symtab) {
		3941	_gv_clear *{"$pkg$name"};
		3942	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3943	}
		3944	}
		3945
2004	sub reload() {	3946	sub do_reload_perl() {
2005	# can/must only be called in main	3947	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3948	unless (in_main) {
2007	warn "can only reload from main coroutine\n";	3949	error "can only reload from main coroutine";
2008	return;	3950	return;
2009	}	3951	}
2010		3952
2011	warn "reloading...";	3953	return if $RELOAD++;
2012		3954
2013	local $FREEZE = 1;	3955	my $t1 = AE::time;
		3956
		3957	while ($RELOAD) {
		3958	cf::get_slot 0.1, -1, "reload_perl";
		3959	info "perl_reload: reloading...";
		3960
		3961	trace "perl_reload: entering sync_job";
		3962
		3963	cf::sync_job {
2014	cf::emergency_save;	3964	#cf::emergency_save;
2015		3965
2016	eval {	3966	trace "perl_reload: cancelling all extension coros";
2017	# if anything goes wrong in here, we should simply crash as we already saved
2018
2019	# cancel all watchers
2020	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}
2023
2024	# cancel all extension coros
2025	$_->cancel for values %EXT_CORO;	3967	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	3968	%EXT_CORO = ();
2027		3969
2028	# unload all extensions	3970	trace "perl_reload: removing commands";
2029	for (@exts) {	3971	%COMMAND = ();
2030	warn "unloading <$_>";
2031	unload_extension $_;
2032	}
2033		3972
2034	# unload all modules loaded from $LIBDIR	3973	trace "perl_reload: removing ext/exti commands";
2035	while (my ($k, $v) = each %INC) {	3974	%EXTCMD = ();
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3975	%EXTICMD = ();
2037		3976
2038	warn "removing <$k>";	3977	trace "perl_reload: unloading/nuking all extensions";
2039	delete $INC{$k};	3978	for my $pkg (@EXTS) {
		3979	trace "... unloading $pkg";
2040		3980
2041	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;
2043
2044	if (my $cb = $k->can ("unload_module")) {	3981	if (my $cb = $pkg->can ("unload")) {
		3982	eval {
2045	$cb->();	3983	$cb->($pkg);
		3984	1
		3985	} or error "$pkg unloaded, but with errors: $@";
		3986	}
		3987
		3988	trace "... clearing $pkg";
		3989	clear_package $pkg;
2046	}	3990	}
2047		3991
2048	Symbol::delete_package $k;	3992	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3993	while (my ($k, $v) = each %INC) {
		3994	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3995
		3996	trace "... unloading $k";
		3997	delete $INC{$k};
		3998
		3999	$k =~ s/\.pm$//;
		4000	$k =~ s/\//::/g;
		4001
		4002	if (my $cb = $k->can ("unload_module")) {
		4003	$cb->();
		4004	}
		4005
		4006	clear_package $k;
2049	}	4007	}
2050		4008
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	4009	trace "perl_reload: getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	4010	clear_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4011	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		4012
2059	# remove register_script_function callbacks	4013	trace "perl_reload: unloading cf.pm \"a bit\"";
2060	# TODO
2061
2062	# unload cf.pm "a bit"
2063	delete $INC{"cf.pm"};	4014	delete $INC{"cf.pm"};
		4015	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2064		4016
2065	# don't, removes xs symbols, too,	4017	# don't, removes xs symbols, too,
2066	# and global variables created in xs	4018	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	4019	#clear_package __PACKAGE__;
2068		4020
2069	# reload cf.pm	4021	info "perl_reload: unload completed, starting to reload now";
2070	warn "reloading cf.pm";	4022
		4023	trace "perl_reload: reloading cf.pm";
2071	require cf;	4024	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4025	cf::_connect_to_perl_1;
2073		4026
2074	# load config and database again	4027	trace "perl_reload: loading config and database again";
2075	cf::cfg_load;	4028	cf::reload_config;
2076	cf::db_load;
2077		4029
2078	# load extensions	4030	trace "perl_reload: loading extensions";
2079	warn "load extensions";
2080	cf::load_extensions;	4031	cf::load_extensions;
2081		4032
2082	# reattach attachments to objects	4033	if ($REATTACH_ON_RELOAD) {
2083	warn "reattach";	4034	trace "perl_reload: reattaching attachments to objects/players";
2084	_global_reattach;	4035	_global_reattach; # objects, sockets
		4036	trace "perl_reload: reattaching attachments to maps";
		4037	reattach $_ for values %MAP;
		4038	trace "perl_reload: reattaching attachments to players";
		4039	reattach $_ for values %PLAYER;
		4040	}
		4041
		4042	cf::_post_init 1;
		4043
		4044	trace "perl_reload: leaving sync_job";
		4045
		4046	1
		4047	} or do {
		4048	error $@;
		4049	cf::cleanup "perl_reload: error, exiting.";
		4050	};
		4051
		4052	--$RELOAD;
		4053	}
		4054
		4055	$t1 = AE::time - $t1;
		4056	info "perl_reload: completed in ${t1}s\n";
		4057	};
		4058
		4059	our $RELOAD_WATCHER; # used only during reload
		4060
		4061	sub reload_perl() {
		4062	# doing reload synchronously and two reloads happen back-to-back,
		4063	# coro crashes during coro_state_free->destroy here.
		4064
		4065	$RELOAD_WATCHER ||= cf::async {
		4066	Coro::AIO::aio_wait cache_extensions;
		4067
		4068	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4069	do_reload_perl;
		4070	undef $RELOAD_WATCHER;
		4071	};
2085	};	4072	};
2086
2087	if ($@) {
2088	warn $@;
2089	warn "error while reloading, exiting.";
2090	exit 1;
2091	}
2092
2093	warn "reloaded successfully";
2094	};
2095
2096	#############################################################################
2097
2098	unless ($LINK_MAP) {
2099	$LINK_MAP = cf::map::new;
2100
2101	$LINK_MAP->width (41);
2102	$LINK_MAP->height (41);
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,
2111	cb => sub {
2112	$_[0]->w->cancel;
2113
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});
2132
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	4073	}
2138
2139	register "<global>", __PACKAGE__;
2140		4074
2141	register_command "reload" => sub {	4075	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	4076	my ($who, $arg) = @_;
2143		4077
2144	if ($who->flag (FLAG_WIZ)) {	4078	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	4079	$who->message ("reloading server.");
		4080	async {
		4081	$Coro::current->{desc} = "perl_reload";
		4082	reload_perl;
		4083	};
2148	}	4084	}
2149	};	4085	};
2150		4086
2151	unshift @INC, $LIBDIR;	4087	#############################################################################
2152		4088
2153	$TICK_WATCHER = Event->timer (	4089	my $bug_warning = 0;
2154	reentrant => 0,
2155	prio => 0,
2156	at => $NEXT_TICK || $TICK,
2157	data => WF_AUTOCANCEL,
2158	cb => sub {
2159	unless ($FREEZE) {
2160	cf::server_tick; # one server iteration
2161	$RUNTIME += $TICK;
2162	}
2163		4090
2164	$NEXT_TICK += $TICK;	4091	sub wait_for_tick() {
		4092	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2165		4093
2166	# if we are delayed by four ticks or more, skip them all	4094	$WAIT_FOR_TICK->wait;
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4095	}
2168		4096
2169	$TICK_WATCHER->at ($NEXT_TICK);	4097	sub wait_for_tick_begin() {
2170	$TICK_WATCHER->start;	4098	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4099
		4100	my $signal = new Coro::Signal;
		4101	push @WAIT_FOR_TICK_BEGIN, $signal;
		4102	$signal->wait;
		4103	}
		4104
		4105	sub tick {
		4106	if ($Coro::current != $Coro::main) {
		4107	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4108	unless ++$bug_warning > 10;
		4109	return;
2171	},	4110	}
2172	);
2173		4111
2174	IO::AIO::max_poll_time $TICK * 0.2;	4112	cf::one_tick; # one server iteration
2175		4113
2176	Event->io (	4114	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2177	fd => IO::AIO::poll_fileno,
2178	poll => 'r',
2179	prio => 5,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183		4115
2184	Event->timer (	4116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2185	data => WF_AUTOCANCEL,	4117	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2186	after => 0,	4118	Coro::async_pool {
2187	interval => 10,	4119	$Coro::current->{desc} = "runtime saver";
2188	cb => sub {
2189	(Coro::unblock_sub {
2190	write_runtime	4120	write_runtime_sync
2191	or warn "ERROR: unable to write runtime file: $!";	4121	or error "ERROR: unable to write runtime file: $!";
2192	})->();	4122	};
2193	},	4123	}
2194	);	4124
		4125	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4126	$sig->send;
		4127	}
		4128	$WAIT_FOR_TICK->broadcast;
		4129
		4130	$LOAD = ($NOW - $TICK_START) / $TICK;
		4131	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4132
		4133	if (0) {
		4134	if ($NEXT_TICK) {
		4135	my $jitter = $TICK_START - $NEXT_TICK;
		4136	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4137	debug "jitter $JITTER\n";#d#
		4138	}
		4139	}
		4140	}
		4141
		4142	{
		4143	# configure BDB
		4144
		4145	BDB::min_parallel 16;
		4146	BDB::max_poll_reqs $TICK * 0.1;
		4147	#$AnyEvent::BDB::WATCHER->priority (1);
		4148
		4149	unless ($DB_ENV) {
		4150	$DB_ENV = BDB::db_env_create;
		4151	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4152	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4153	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4154	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4155	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4156
		4157	cf::sync_job {
		4158	eval {
		4159	BDB::db_env_open
		4160	$DB_ENV,
		4161	$BDBDIR,
		4162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4164	0666;
		4165
		4166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4167	};
		4168
		4169	cf::cleanup "db_env_open(db): $@" if $@;
		4170	};
		4171	}
		4172
		4173	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4174	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4175	};
		4176	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4177	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4178	};
		4179	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4180	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4181	};
		4182	}
		4183
		4184	{
		4185	# configure IO::AIO
		4186
		4187	IO::AIO::min_parallel 8;
		4188	IO::AIO::max_poll_time $TICK * 0.1;
		4189	undef $AnyEvent::AIO::WATCHER;
		4190	}
		4191
		4192	our $_log_backtrace;
		4193	our $_log_backtrace_last;
		4194
		4195	sub _log_backtrace {
		4196	my ($msg, @addr) = @_;
		4197
		4198	$msg =~ s/\n$//;
		4199
		4200	if ($_log_backtrace_last eq $msg) {
		4201	LOG llevInfo, "[ABT] $msg\n";
		4202	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4203	# limit the # of concurrent backtraces
		4204	} elsif ($_log_backtrace < 2) {
		4205	$_log_backtrace_last = $msg;
		4206	++$_log_backtrace;
		4207	my $perl_bt = Carp::longmess $msg;
		4208	async {
		4209	$Coro::current->{desc} = "abt $msg";
		4210
		4211	my @bt = fork_call {
		4212	@addr = map { sprintf "%x", $_ } @addr;
		4213	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4214	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4215	or die "addr2line: $!";
		4216
		4217	my @funcs;
		4218	my @res = <$fh>;
		4219	chomp for @res;
		4220	while (@res) {
		4221	my ($func, $line) = splice @res, 0, 2, ();
		4222	push @funcs, "[$func] $line";
		4223	}
		4224
		4225	@funcs
		4226	};
		4227
		4228	LOG llevInfo, "[ABT] $perl_bt\n";
		4229	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4230	LOG llevInfo, "[ABT] $_\n" for @bt;
		4231	--$_log_backtrace;
		4232	};
		4233	} else {
		4234	LOG llevInfo, "[ABT] $msg\n";
		4235	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4236	}
		4237	}
		4238
		4239	# load additional modules
		4240	require "cf/$_.pm" for @EXTRA_MODULES;
		4241	cf::_connect_to_perl_2;
2195		4242
2196	END { cf::emergency_save }	4243	END { cf::emergency_save }
2197		4244
2198	1	4245	1
2199		4246

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