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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.580 by root, Wed Jan 4 03:22:48 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 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
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		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" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	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
49	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;
50	our $NOW;	138	our $NOW;
51		139
52	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
53		143
54	our $UPTIME; $UPTIME ||= time;	144	# used to convert map paths into valid unix filenames by replacing / by ∕
55	our $RUNTIME;	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		146
57	our %PLAYER; # all users	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
58	our %MAP; # all maps	148	our $LOADAVG; # same thing, but with alpha-smoothing
59	our $LINK_MAP; # the special {link} map	149	our $JITTER; # average jitter
60	our $RANDOM_MAPS = cf::localdir . "/random";	150	our $TICK_START; # for load detecting purposes
61		151
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	152	our @POST_INIT;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	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 $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
64		159
65	binmode STDOUT;	160	binmode STDOUT;
66	binmode STDERR;	161	binmode STDERR;
67		162
68	# read virtual server time, if available	163	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
70	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
71	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
72	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
73	}	168	}
74		169
75	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
76	mkdir cf::localdir . "/" . cf::playerdir;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		171
81	# a special map that is always available	172	mkdir $_
82	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		174
83	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
84		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
85	#############################################################################	183	#############################################################################
86		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
87	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
88		197
89	=over 4	198	=over 4
90		199
91	=item $cf::UPTIME	200	=item $cf::UPTIME
92		201
93	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.
94		218
95	=item $cf::RUNTIME	219	=item $cf::RUNTIME
96		220
97	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
98	every server tick.	222	every server tick.
99		223
100	=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
101		227
102	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		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
105	=item $cf::NOW	239	=item $cf::LOAD
106		240
107	The time of the last (current) server tick.	241	The raw value load value from the last tick.
108
109	=item $cf::TICK
110
111	The interval between server ticks, in seconds.
112		242
113	=item %cf::CFG	243	=item %cf::CFG
114		244
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	246	from wherever your confdir points to.
117		247
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	248	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		249
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	251	returns directly I<after> the tick processing (and consequently, can only wake one thread
122	processing has been done. Call C<< ->wait >> on them to maximise the	252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$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.
124		282
125	=back	283	=back
126		284
127	=cut	285	=cut
128		286
129	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
130	*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 {
131	my $msg = join "", @_;	294	my $msg = join "", @_;
132	utf8::encode $msg;
133		295
134	$msg .= "\n"	296	$msg .= "\n"
135	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
136		298
		299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		300
137	LOG llevError, $msg;	301	LOG llevWarn, $msg;
138	};	302	};
139	}	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	};
140		317
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		325
148	# 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
149	# within the Safe compartment.	327	# within the Safe compartment.
150	for my $pkg (qw(	328	for my $pkg (qw(
151	cf::global cf::attachable	329	cf::global cf::attachable
152	cf::object cf::object::player	330	cf::object cf::object::player
153	cf::client cf::player	331	cf::client cf::player
154	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
155	cf::map cf::party cf::region	334	cf::party cf::region
156	)) {	335	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	337	}
160		338
161	$Event::DIED = sub {	339	$EV::DIED = sub {
162	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
163	};	341	};
		342
		343	#############################################################################
		344
		345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
164		349
165	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
166		351
167	=over 4	352	=over 4
168		353
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	373	$d
189	} || "[unable to dump $_[0]: '$@']";	374	} || "[unable to dump $_[0]: '$@']";
190	}	375	}
191		376
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	377	=item $scalar = load_file $path
193		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
194	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
195		392
196	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
197		394
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	395	=item $json = cf::encode_json $ref
206		396
207	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
208		398
209	=cut	399	=cut
210		400
211	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	402
213	JSON::Syck::Dump $_[0]	403	sub encode_json($) { $json_coder->encode ($_[0]) }
		404	sub decode_json($) { $json_coder->decode ($_[0]) }
		405
		406	=item $ref = cf::decode_storable $scalar
		407
		408	Same as Coro::Storable::thaw, so blocks.
		409
		410	=cut
		411
		412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		413
		414	=item $ref = cf::decode_yaml $scalar
		415
		416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		417
		418	=cut
		419
		420	sub decode_yaml($) {
		421	fork_call { YAML::XS::Load $_[0] } @_
		422	}
		423
		424	=item $scalar = cf::unlzf $scalar
		425
		426	Same as Compress::LZF::compress, but takes server ticks into account, so
		427	blocks.
		428
		429	=cut
		430
		431	sub unlzf($) {
		432	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		433	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		434	Compress::LZF::decompress $_[0]
		435	}
		436
		437	=item cf::post_init { BLOCK }
		438
		439	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		440	but I<before> the server starts ticking again.
		441
		442	The codeblock will have a single boolean argument to indicate whether this
		443	is a reload or not.
		444
		445	=cut
		446
		447	sub post_init(&) {
		448	push @POST_INIT, shift;
		449	}
		450
		451	sub _post_init {
		452	trace "running post_init jobs";
		453
		454	# run them in parallel...
		455
		456	my @join;
		457
		458	while () {
		459	push @join, map &Coro::async ($_, 0), @POST_INIT;
		460	@POST_INIT = ();
		461
		462	@join or last;
		463
		464	(pop @join)->join;
		465	}
214	}	466	}
215		467
216	=item cf::lock_wait $string	468	=item cf::lock_wait $string
217		469
218	Wait until the given lock is available. See cf::lock_acquire.	470	Wait until the given lock is available. See cf::lock_acquire.
219		471
220	=item my $lock = cf::lock_acquire $string	472	=item my $lock = cf::lock_acquire $string
221		473
222	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
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	475	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	476	for example when the coroutine gets canceled), the lock is automatically
225	returned.	477	returned.
226		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
227	Lock names should begin with a unique identifier (for example, cf::map::find	482	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	483	uses map_find and cf::map::load uses map_load).
229		484
230	=cut	485	=item $locked = cf::lock_active $string
231		486
232	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;
233		492
234	sub lock_wait($) {	493	sub lock_wait($) {
235	my ($key) = @_;	494	$LOCKS->wait ($_[0]);
236
237	# wait for lock, if any
238	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;
241	}
242	}	495	}
243		496
244	sub lock_acquire($) {	497	sub lock_acquire($) {
245	my ($key) = @_;	498	$LOCKS->guard ($_[0])
		499	}
246		500
247	# wait, to be sure we are not locked	501	sub lock_active($) {
248	lock_wait $key;	502	$LOCKS->count ($_[0]) < 1
249
250	$LOCK{$key} = [];
251
252	Coro::guard {
253	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };
255	}
256	}	503	}
257		504
258	sub freeze_mainloop {	505	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	506	tick_inhibit_inc;
260		507
261	my $guard = Coro::guard { $TICK_WATCHER->start };	508	&Guard::guard (\&tick_inhibit_dec);
262	$TICK_WATCHER->stop;	509	}
263	$guard	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;
264	}	594	}
265		595
266	=item cf::async { BLOCK }	596	=item cf::async { BLOCK }
267		597
268	Currently the same as Coro::async_pool, meaning you cannot use	598	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		603
274	BEGIN { *async = \&Coro::async_pool }	604	BEGIN { *async = \&Coro::async_pool }
275		605
276	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
277		607
278	The design of crossfire+ requires that the main coro ($Coro::main) is	608	The design of Deliantra requires that the main coroutine ($Coro::main)
279	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
280	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.
281		612
282	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
283	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
284	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
285	fast or be very important.	616	fast or be very important.
…		…
287	=cut	618	=cut
288		619
289	sub sync_job(&) {	620	sub sync_job(&) {
290	my ($job) = @_;	621	my ($job) = @_;
291		622
292	if ($Coro::current == $Coro::main) {	623	if (in_main) {
		624	my $time = AE::time;
		625
293	# this is the main coro, too bad, we have to block	626	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	627	# till the operation succeeds, freezing the server :/
295		628
296	# TODO: use suspend/resume instead	629	#LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	630
298	my $freeze_guard = freeze_mainloop;	631	my $freeze_guard = freeze_mainloop;
299		632
300	my $busy = 1;	633	my $busy = 1;
301	my @res;	634	my @res;
302		635
303	(async {	636	(async {
		637	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	638	@res = eval { $job->() };
305	warn $@ if $@;	639	error $@ if $@;
306	undef $busy;	640	undef $busy;
307	})->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
308		642
309	while ($busy) {	643	while ($busy) {
310	Coro::cede or Event::one_event;	644	if (Coro::nready) {
		645	Coro::cede_notself;
		646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
311	}	648	}
		649	}
		650
		651	my $time = AE::time - $time;
		652
		653	$TICK_START += $time; # do not account sync jobs to server load
312		654
313	wantarray ? @res : $res[0]	655	wantarray ? @res : $res[0]
314	} else {	656	} else {
315	# we are in another coroutine, how wonderful, everything just works	657	# we are in another coroutine, how wonderful, everything just works
316		658
…		…
336	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
337		679
338	$coro	680	$coro
339	}	681	}
340		682
341	sub write_runtime {	683	=item fork_call { }, @args
342	my $runtime = cf::localdir . "/runtime";
343		684
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	685	Executes the given code block with the given arguments in a seperate
345	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.
346		689
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	690	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		691
351	aio_fsync $fh	692	sub post_fork {
352	and return;	693	reset_signals;
		694	}
353		695
354	close $fh	696	sub fork_call(&@) {
355	or return;	697	my ($cb, @args) = @_;
356		698
357	aio_rename "$runtime~", $runtime	699	# we seemingly have to make a local copy of the whole thing,
358	and return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
359		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 {
360	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 });
361	}	886	}
362		887
363	=back	888	=back
364		889
365	=cut	890	=cut
366		891
367	#############################################################################	892	#############################################################################
368		893
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522
523	#############################################################################
524
525	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
526		895
527	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
528	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")
529	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
530		899
531	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>
532	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
533	crossfire+).	902	Deliantra).
534		903
535	=over 4	904	=over 4
536		905
537	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
538		907
…		…
582	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
583		952
584	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
585	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
586		955
587	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
588	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.
589		958
590	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
591		960
592	=over 4	961	=over 4
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	1022	our @CB_MAP = ();
654		1023
655	my %attachment;	1024	my %attachment;
656		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
657	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
659		1034
660	use sort 'stable';	1035	use sort 'stable';
661		1036
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
696		1071
697	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		1076
702	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
704		1079
705	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
710		1085
711	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
712	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
713		1088
714	} elsif (ref $type) {	1089	} elsif (ref $type) {
715	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
716		1091
717	} else {	1092	} else {
718	shift @arg;	1093	shift @arg;
719	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
720	}	1095	}
721	}	1096	}
722	}	1097	}
723		1098
724	sub _object_attach {	1099	sub _object_attach {
…		…
734	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
735	}	1110	}
736		1111
737	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
738	} else {	1113	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
740	}	1115	}
741		1116
742	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
743	}	1118	}
744		1119
…		…
746	if (ref $_[0]) {	1121	if (ref $_[0]) {
747	_object_attach @_;	1122	_object_attach @_;
748	} else {	1123	} else {
749	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
750	}	1125	}
		1126	_recalc_want;
751	};	1127	};
752		1128
753	# all those should be optimised	1129	# all those should be optimised
754	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
759	reattach ($obj);	1135	reattach ($obj);
760	} else {	1136	} else {
761	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
762	}	1138	}
		1139	_recalc_want;
763	};	1140	};
764		1141
765	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
767		1144
…		…
782	";	1159	";
783	die if $@;	1160	die if $@;
784	}	1161	}
785		1162
786	our $override;	1163	our $override;
787	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?
788		1165
789	sub override {	1166	sub override {
790	$override = 1;	1167	$override = 1;
791	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
792	}	1169	}
793		1170
794	sub do_invoke {	1171	sub do_invoke {
795	my $event = shift;	1172	my $event = shift;
796	my $callbacks = shift;	1173	my $callbacks = shift;
797		1174
798	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
799		1176
800	local $override;	1177	local $override;
801		1178
802	for (@$callbacks) {	1179	for (@$callbacks) {
803	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
804		1181
805	if ($@) {	1182	if ($@) {
806	warn "$@";
807	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
808	override;	1184	override;
809	}	1185	}
810		1186
811	return 1 if $override;	1187	return 1 if $override;
812	}	1188	}
813		1189
814	0	1190	0
815	}	1191	}
816		1192
817	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
818		1194
819	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
820		1196
821	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
822		1198
823	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
824	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
825	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		1202
827	=back	1203	=back
828		1204
829	=cut	1205	=cut
830		1206
831	#############################################################################	1207	#############################################################################
832	# 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	}
833		1251
834	sub reattach {	1252	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
836	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
837		1258
838	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
839		1260
840	@$registry = ();	1261	@$registry = ();
841		1262
…		…
846	for (@$attach) {	1267	for (@$attach) {
847	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
848	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
849	}	1270	}
850	} else {	1271	} else {
851	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
852	}	1273	}
853	}	1274	}
854	}	1275	}
855		1276
856	cf::attachable->attach (	1277	cf::attachable->attach (
857	prio => -1000000,	1278	prio => -1000000,
858	on_instantiate => sub {	1279	on_instantiate => sub {
859	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
860		1281
861	$data = from_json $data;	1282	$data = decode_json $data;
862		1283
863	for (@$data) {	1284	for (@$data) {
864	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
865		1286
866	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
882	sub object_freezer_save {	1303	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
884		1305
885	sync_job {	1306	sync_job {
886	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
889		1312
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
892	aio_write $fh, 0, (length $$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;
893	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
894	close $fh;	1320	aio_close $fh;
895		1321
896	if (@$objs) {	1322	if (@$objs) {
897	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) {
898	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
900	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;
901	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
902	close $fh;	1331	aio_close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
904	}	1333	}
905	} else {	1334	} else {
906	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
907	}	1336	}
908		1337
909	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
910	} else {	1342	} else {
911	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
912	}	1344	}
913	} else {	1345	} else {
914	aio_unlink $filename;	1346	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
916	}	1348	}
917	}	1349	};
918	}	1350	}
919		1351
920	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
922		1354
…		…
934	or return;	1366	or return;
935		1367
936	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
938	or return;	1370	or return;
		1371
939	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
940	}	1374	}
941		1375
		1376	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
944	return ($data, $av);	1381	($data, $av)
945	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
946		1389
947	#############################################################################	1390	#############################################################################
948	# command handling &c	1391	# command handling &c
949		1392
950	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1407	}
965		1408
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1410
968	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.
969		1416
970	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
971	called.	1418	called.
972		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
973	=cut	1431	=cut
974		1432
975	sub register_extcmd {	1433	sub register_extcmd {
976	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
977		1435
978	$EXTCMD{$name} = $cb;	1436	$EXTCMD{$name} = $cb;
979	}	1437	}
980		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
		1446
981	cf::player->attach (	1447	cf::player->attach (
982	on_command => sub {	1448	on_unknown_command => sub {
983	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
984		1450
985	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
986	or return;	1452	or return;
987		1453
…		…
992	cf::override;	1458	cf::override;
993	},	1459	},
994	on_extcmd => sub {	1460	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
996		1462
997	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1464
999	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1467
		1468	my @reply;
		1469
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1470	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1471	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1472	}
		1473
		1474	$pl->ext_reply ($reply, @reply)
		1475	if $reply;
		1476
1005	} else {	1477	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1478	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1479	}
1008		1480
1009	cf::override;	1481	cf::override;
1010	},	1482	},
1011	);	1483	);
1012		1484
		1485	# "readahead" all extensions
1013	sub load_extension {	1486	sub cache_extensions {
1014	my ($path) = @_;	1487	my $grp = IO::AIO::aio_group;
1015		1488
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1489	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1017	my $base = $1;	1490	for (grep /\.ext$/, @{$_[0]}) {
1018	my $pkg = $1;	1491	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1019	$pkg =~ s/[^[:word:]]/_/g;	1492	}
1020	$pkg = "ext::$pkg";	1493	};
1021		1494
1022	warn "... loading '$path' into '$pkg'\n";	1495	$grp
1023
1024	open my $fh, "<:utf8", $path
1025	or die "$path: $!";
1026
1027	my $source =
1028	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032
1033	eval $source
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036
1037	push @EXTS, $pkg;
1038	}	1496	}
1039		1497
1040	sub load_extensions {	1498	sub load_extensions {
		1499	info "loading extensions...";
		1500
		1501	cf::sync_job {
		1502	my %todo;
		1503
1041	for my $ext (<$LIBDIR/*.ext>) {	1504	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1505	next unless -r $path;
1043	eval {	1506
1044	load_extension $ext;	1507	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1508	my $base = $1;
		1509	my $pkg = $1;
		1510	$pkg =~ s/[^[:word:]]/_/g;
		1511	$pkg = "ext::$pkg";
		1512
		1513	open my $fh, "<:utf8", $path
		1514	or die "$path: $!";
		1515
		1516	my $source = do { local $/; <$fh> };
		1517
		1518	my %ext = (
		1519	path => $path,
		1520	base => $base,
		1521	pkg => $pkg,
		1522	);
		1523
		1524	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1525	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1526
		1527	$ext{source} =
		1528	"package $pkg; use common::sense;\n"
		1529	. "#line 1 \"$path\"\n{\n"
		1530	. $source
		1531	. "\n};\n1";
		1532
		1533	$todo{$base} = \%ext;
		1534	}
		1535
		1536	my $pass = 0;
		1537	my %done;
		1538	while (%todo) {
		1539	my $progress;
		1540
		1541	++$pass;
		1542
		1543	ext:
		1544	while (my ($k, $v) = each %todo) {
		1545	for (split /,\s*/, $v->{meta}{depends}) {
		1546	next ext
		1547	unless exists $done{$_};
		1548	}
		1549
		1550	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1551
		1552	my $active = eval $v->{source};
		1553
		1554	if (length $@) {
		1555	error "$v->{path}: $@\n";
		1556
		1557	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559
		1560	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1561	delete $todo{$k};
		1562	} else {
		1563	$done{$k} = delete $todo{$k};
		1564	push @EXTS, $v->{pkg};
		1565	$progress = 1;
		1566
		1567	info "$v->{base}: extension inactive.\n"
		1568	unless $active;
		1569	}
1045	1	1570	}
1046	} or warn "$ext not loaded: $@";	1571
		1572	unless ($progress) {
		1573	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1574
		1575	while (my ($k, $v) = each %todo) {
		1576	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1577	if exists $v->{meta}{mandatory};
		1578	}
		1579
		1580	last;
		1581	}
		1582	}
1047	}	1583	};
1048	}	1584	}
1049		1585
1050	#############################################################################	1586	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1587
1053	*cf::mapsupport::on_clean = sub {	1588	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1589
1066	=head2 CORE EXTENSIONS	1590	=head2 CORE EXTENSIONS
1067		1591
1068	Functions and methods that extend core crossfire objects.	1592	Functions and methods that extend core deliantra objects.
1069		1593
1070	=cut	1594	=cut
1071		1595
1072	package cf::player;	1596	package cf::player;
1073		1597
…		…
1075		1599
1076	=head3 cf::player	1600	=head3 cf::player
1077		1601
1078	=over 4	1602	=over 4
1079		1603
		1604	=item cf::player::num_playing
		1605
		1606	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1607
		1608	=cut
		1609
		1610	sub num_playing {
		1611	scalar grep
		1612	$_->ob->map
		1613	&& !$_->hidden
		1614	&& !$_->ob->flag (cf::FLAG_WIZ),
		1615	cf::player::list
		1616	}
		1617
1080	=item cf::player::find $login	1618	=item cf::player::find $login
1081		1619
1082	Returns the given player object, loading it if necessary (might block).	1620	Returns the given player object, loading it if necessary (might block).
1083		1621
1084	=cut	1622	=cut
1085		1623
1086	sub playerdir($) {	1624	sub playerdir($) {
1087	cf::localdir	1625	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1626	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1627	}
1093		1628
1094	sub path($) {	1629	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1630	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1631
1097	(playerdir $login) . "/$login.pl"	1632	(playerdir $login) . "/playerdata"
1098	}	1633	}
1099		1634
1100	sub find_active($) {	1635	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1636	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1637	and $cf::PLAYER{$_[0]}->active
…		…
1105		1640
1106	sub exists($) {	1641	sub exists($) {
1107	my ($login) = @_;	1642	my ($login) = @_;
1108		1643
1109	$cf::PLAYER{$login}	1644	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1645	or !aio_stat path $login
1111	}	1646	}
1112		1647
1113	sub find($) {	1648	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1649	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1650	my $login = $_[0];
1116		1651
1117	my $guard = cf::lock_acquire "user_find:$login";	1652	my $guard = cf::lock_acquire "user_find:$login";
1118		1653
1119	$cf::PLAYER{$_[0]} || do {	1654	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1655	# rename old playerfiles to new ones
		1656	#TODO: remove when no longer required
		1657	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1658	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1659	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1660	aio_unlink +(playerdir $login) . "/$login.pl";
		1661
		1662	my $f = new_from_file cf::object::thawer path $login
1121	or return;	1663	or return;
		1664
		1665	my $pl = cf::player::load_pl $f
		1666	or return;
		1667
		1668	local $cf::PLAYER_LOADING{$login} = $pl;
		1669	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1670	$cf::PLAYER{$login} = $pl
1123	}	1671	}
1124	}	1672	}
1125	}	1673	}
		1674
		1675	cf::player->attach (
		1676	on_load => sub {
		1677	my ($pl, $path) = @_;
		1678
		1679	# restore slots saved in save, below
		1680	my $slots = delete $pl->{_slots};
		1681
		1682	$pl->ob->current_weapon ($slots->[0]);
		1683	$pl->combat_ob ($slots->[1]);
		1684	$pl->ranged_ob ($slots->[2]);
		1685	},
		1686	);
1126		1687
1127	sub save($) {	1688	sub save($) {
1128	my ($pl) = @_;	1689	my ($pl) = @_;
1129		1690
1130	return if $pl->{deny_save};	1691	return if $pl->{deny_save};
…		…
1135	return if $pl->{deny_save};	1696	return if $pl->{deny_save};
1136		1697
1137	aio_mkdir playerdir $pl, 0770;	1698	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1699	$pl->{last_save} = $cf::RUNTIME;
1139		1700
		1701	cf::get_slot 0.01;
		1702
		1703	# save slots, to be restored later
		1704	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1705
1140	$pl->save_pl ($path);	1706	$pl->save_pl ($path);
1141	Coro::cede;	1707	cf::cede_to_tick;
1142	}	1708	}
1143		1709
1144	sub new($) {	1710	sub new($) {
1145	my ($login) = @_;	1711	my ($login) = @_;
1146		1712
…		…
1152	$cf::PLAYER{$login} = $self;	1718	$cf::PLAYER{$login} = $self;
1153		1719
1154	$self	1720	$self
1155	}	1721	}
1156		1722
		1723	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1724
		1725	=cut
		1726
		1727	sub send_msg {
		1728	my $ns = shift->ns
		1729	or return;
		1730	$ns->send_msg (@_);
		1731	}
		1732
1157	=item $pl->quit_character	1733	=item $pl->quit_character
1158		1734
1159	Nukes the player without looking back. If logged in, the connection will	1735	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1736	be destroyed. May block for a long time.
1161		1737
1162	=cut	1738	=cut
1163		1739
1164	sub quit_character {	1740	sub quit_character {
1165	my ($pl) = @_;	1741	my ($pl) = @_;
1166		1742
		1743	my $name = $pl->ob->name;
		1744
1167	$pl->{deny_save} = 1;	1745	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1746	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1169		1747
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1748	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1171	$pl->deactivate;	1749	$pl->deactivate;
		1750
		1751	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1172	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1752	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1753	ext::highscore::check ($pl->ob);
		1754
1173	$pl->ns->destroy if $pl->ns;	1755	$pl->ns->destroy if $pl->ns;
1174		1756
1175	my $path = playerdir $pl;	1757	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1758	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1759	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1760	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1761	$pl->destroy;
		1762
		1763	my $prefix = qr<^~\Q$name\E/>;
		1764
		1765	# nuke player maps
		1766	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1767
1180	IO::AIO::aio_rmtree $temp;	1768	IO::AIO::aio_rmtree $temp;
		1769	}
		1770
		1771	=item $pl->kick
		1772
		1773	Kicks a player out of the game. This destroys the connection.
		1774
		1775	=cut
		1776
		1777	sub kick {
		1778	my ($pl, $kicker) = @_;
		1779
		1780	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1781	$pl->killer ("kicked");
		1782	$pl->ns->destroy;
1181	}	1783	}
1182		1784
1183	=item cf::player::list_logins	1785	=item cf::player::list_logins
1184		1786
1185	Returns am arrayref of all valid playernames in the system, can take a	1787	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1788	while and may block, so not sync_job-capable, ever.
1187		1789
1188	=cut	1790	=cut
1189		1791
1190	sub list_logins {	1792	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1793	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1794	or return [];
1193		1795
1194	my @logins;	1796	my @logins;
1195		1797
1196	for my $login (@$dirs) {	1798	for my $login (@$dirs) {
		1799	my $path = path $login;
		1800
		1801	# a .pst is a dead give-away for a valid player
		1802	# if no pst file found, open and chekc for blocked users
		1803	if (aio_stat "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1804	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1805	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1806	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1807	}
1200		1808
1201	utf8::decode $login;	1809	utf8::decode $login;
1202	push @logins, $login;	1810	push @logins, $login;
1203	}	1811	}
1204		1812
1205	\@logins	1813	\@logins
1206	}	1814	}
1207		1815
1208	=item $player->maps	1816	=item $player->maps
1209		1817
		1818	=item cf::player::maps $login
		1819
1210	Returns an arrayref of cf::path's of all maps that are private for this	1820	Returns an arrayref of map paths that are private for this
1211	player. May block.	1821	player. May block.
1212		1822
1213	=cut	1823	=cut
1214		1824
1215	sub maps($) {	1825	sub maps($) {
1216	my ($pl) = @_;	1826	my ($pl) = @_;
		1827
		1828	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1829
1218	my $files = aio_readdir playerdir $pl	1830	my $files = aio_readdir playerdir $pl
1219	or return;	1831	or return;
1220		1832
1221	my @paths;	1833	my @paths;
…		…
1223	for (@$files) {	1835	for (@$files) {
1224	utf8::decode $_;	1836	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1837	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1838	next unless /^$PATH_SEP/o;
1227		1839
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1840	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1841	}
1230		1842
1231	\@paths	1843	\@paths
1232	}	1844	}
1233		1845
		1846	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1847
		1848	Expand deliantra pod fragments into protocol xml.
		1849
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1850	=item $player->ext_reply ($msgid, @msg)
1235		1851
1236	Sends an ext reply to the player.	1852	Sends an ext reply to the player.
1237		1853
1238	=cut	1854	=cut
1239		1855
1240	sub ext_reply($$$%) {	1856	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1857	my ($self, $id, @msg) = @_;
1242		1858
1243	$msg{msgid} = $id;	1859	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1860	}
1247		1861
1248	package cf;	1862	=item $player->ext_msg ($type, @msg)
		1863
		1864	Sends an ext event to the client.
		1865
		1866	=cut
		1867
		1868	sub ext_msg($$@) {
		1869	my ($self, $type, @msg) = @_;
		1870
		1871	$self->ns->ext_msg ($type, @msg);
		1872	}
		1873
		1874	=head3 cf::region
		1875
		1876	=over 4
		1877
		1878	=cut
		1879
		1880	package cf::region;
		1881
		1882	=item cf::region::find_by_path $path
		1883
		1884	Tries to decuce the likely region for a map knowing only its path.
		1885
		1886	=cut
		1887
		1888	sub find_by_path($) {
		1889	my ($path) = @_;
		1890
		1891	$path =~ s/^~[^\/]*//; # skip ~login
		1892
		1893	my ($match, $specificity);
		1894
		1895	for my $region (list) {
		1896	if ($region->{match} && $path =~ $region->{match}) {
		1897	($match, $specificity) = ($region, $region->specificity)
		1898	if $region->specificity > $specificity;
		1899	}
		1900	}
		1901
		1902	$match
		1903	}
1249		1904
1250	=back	1905	=back
1251
1252		1906
1253	=head3 cf::map	1907	=head3 cf::map
1254		1908
1255	=over 4	1909	=over 4
1256		1910
…		…
1259	package cf::map;	1913	package cf::map;
1260		1914
1261	use Fcntl;	1915	use Fcntl;
1262	use Coro::AIO;	1916	use Coro::AIO;
1263		1917
		1918	use overload
		1919	'""' => \&as_string,
		1920	fallback => 1;
		1921
1264	our $MAX_RESET = 3600;	1922	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1923	our $DEFAULT_RESET = 3000;
1266		1924
1267	sub generate_random_map {	1925	sub generate_random_map {
		1926	my ($self, $rmp) = @_;
		1927
		1928	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1929
		1930	$self->_create_random_map ($rmp);
		1931	}
		1932
		1933	=item cf::map->register ($regex, $prio)
		1934
		1935	Register a handler for the map path matching the given regex at the
		1936	givne priority (higher is better, built-in handlers have priority 0, the
		1937	default).
		1938
		1939	=cut
		1940
		1941	sub register {
		1942	my (undef, $regex, $prio) = @_;
		1943	my $pkg = caller;
		1944
		1945	push @{"$pkg\::ISA"}, __PACKAGE__;
		1946
		1947	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1948	}
		1949
		1950	# also paths starting with '/'
		1951	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1952
		1953	sub thawer_merge {
		1954	my ($self, $merge) = @_;
		1955
		1956	# we have to keep some variables in memory intact
		1957	local $self->{path};
		1958	local $self->{load_path};
		1959
		1960	$self->SUPER::thawer_merge ($merge);
		1961	}
		1962
		1963	sub normalise {
1268	my ($path, $rmp) = @_;	1964	my ($path, $base) = @_;
1269		1965
1270	# mit "rum" bekleckern, nicht	1966	$path = "$path"; # make sure it's a string
1271	cf::map::_create_random_map (	1967
		1968	$path =~ s/\.map$//;
		1969
		1970	# map plan:
		1971	#
		1972	# /! non-realised random map exit (special hack!)
		1973	# {... are special paths that are not being touched
		1974	# ?xxx/... are special absolute paths
		1975	# ?random/... random maps
		1976	# /... normal maps
		1977	# ~user/... per-player map of a specific user
		1978
		1979	$path =~ s/$PATH_SEP/\//go;
		1980
		1981	# treat it as relative path if it starts with
		1982	# something that looks reasonable
		1983	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1984	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1985
		1986	$base =~ s{[^/]+/?$}{};
		1987	$path = "$base/$path";
		1988	}
		1989
		1990	for ($path) {
		1991	redo if s{/\.?/}{/};
		1992	redo if s{/[^/]+/\.\./}{/};
		1993	}
		1994
1272	$path,	1995	$path
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1996	}
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1997
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1998	sub new_from_path {
1276	$rmp->{exit_on_final_map},	1999	my (undef, $path, $base) = @_;
1277	$rmp->{xsize}, $rmp->{ysize},	2000
1278	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	2001	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1279	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	2002
1280	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	2003	$path = normalise $path, $base;
1281	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	2004
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	2005	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	2006	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2007	my $self = bless cf::map::new, $pkg;
		2008	$self->{path} = $path; $self->path ($path);
		2009	$self->init; # pass $1 etc.
		2010	return $self;
		2011	}
		2012	}
		2013
		2014	Carp::cluck "unable to resolve path '$path' (base '$base')";
1284	)	2015	()
1285	}	2016	}
1286		2017
1287	# and all this just because we cannot iterate over	2018	# may re-bless or do other evil things
1288	# all maps in C++...	2019	sub init {
1289	sub change_all_map_light {
1290	my ($change) = @_;	2020	my ($self) = @_;
1291		2021
1292	$_->change_map_light ($change)	2022	$self
1293	for grep $_->outdoor, values %cf::MAP;
1294	}	2023	}
1295		2024
		2025	sub as_string {
		2026	my ($self) = @_;
		2027
		2028	"$self->{path}"
		2029	}
		2030
		2031	# the displayed name, this is a one way mapping
		2032	sub visible_name {
		2033	&as_string
		2034	}
		2035
		2036	# the original (read-only) location
		2037	sub load_path {
		2038	my ($self) = @_;
		2039
		2040	"$MAPDIR/$self->{path}.map"
		2041	}
		2042
		2043	# the temporary/swap location
		2044	sub save_path {
		2045	my ($self) = @_;
		2046
		2047	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2048	"$TMPDIR/$path.map"
		2049	}
		2050
		2051	# the unique path, undef == no special unique path
		2052	sub uniq_path {
		2053	my ($self) = @_;
		2054
		2055	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2056	"$UNIQUEDIR/$path"
		2057	}
		2058
		2059	sub decay_objects {
		2060	my ($self) = @_;
		2061
		2062	return if $self->{deny_reset};
		2063
		2064	$self->do_decay_objects;
		2065	}
		2066
		2067	sub unlink_save {
		2068	my ($self) = @_;
		2069
		2070	utf8::encode (my $save = $self->save_path);
		2071	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2072	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2073	}
		2074
1296	sub load_map_header($) {	2075	sub load_header_from($) {
1297	my ($path) = @_;	2076	my ($self, $path) = @_;
1298		2077
1299	utf8::encode $path;	2078	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	2079	my $f = new_from_file cf::object::thawer $path
1301	or return;	2080	or return;
1302		2081
1303	my $map = cf::map::new	2082	$self->_load_header ($f)
1304	or return;	2083	or return;
1305		2084
1306	# for better error messages only, will be overwritten later	2085	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	2086	$f->resolve_delayed_derefs;
1308		2087
1309	$map->load_header ($path)	2088	$self->{load_path} = $path;
		2089
		2090	1
		2091	}
		2092
		2093	# used to laod the header of an original map
		2094	sub load_header_orig {
		2095	my ($self) = @_;
		2096
		2097	$self->load_header_from ($self->load_path)
		2098	}
		2099
		2100	# used to laod the header of an instantiated map
		2101	sub load_header_temp {
		2102	my ($self) = @_;
		2103
		2104	$self->load_header_from ($self->save_path)
		2105	}
		2106
		2107	# called after loading the header from an instantiated map
		2108	sub prepare_temp {
		2109	my ($self) = @_;
		2110
		2111	$self->last_access ((delete $self->{last_access})
		2112	|| $cf::RUNTIME); #d#
		2113	# safety
		2114	$self->{instantiate_time} = $cf::RUNTIME
		2115	if $self->{instantiate_time} > $cf::RUNTIME;
		2116	}
		2117
		2118	# called after loading the header from an original map
		2119	sub prepare_orig {
		2120	my ($self) = @_;
		2121
		2122	$self->{load_original} = 1;
		2123	$self->{instantiate_time} = $cf::RUNTIME;
		2124	$self->last_access ($cf::RUNTIME);
		2125	$self->instantiate;
		2126	}
		2127
		2128	sub load_header {
		2129	my ($self) = @_;
		2130
		2131	if ($self->load_header_temp) {
		2132	$self->prepare_temp;
		2133	} else {
		2134	$self->load_header_orig
1310	or return;	2135	or return;
		2136	$self->prepare_orig;
		2137	}
1311		2138
1312	$map->{load_path} = $path;	2139	$self->{deny_reset} = 1
		2140	if $self->no_reset;
1313		2141
1314	$map	2142	$self->default_region (cf::region::find_by_path $self->{path})
		2143	unless $self->default_region;
		2144
		2145	1
1315	}	2146	}
1316		2147
1317	sub find;	2148	sub find;
1318	sub find {	2149	sub find {
1319	my ($path, $origin) = @_;	2150	my ($path, $origin) = @_;
1320		2151
1321	#warn "find<$path,$origin>\n";#d#	2152	cf::cede_to_tick;
1322		2153
1323	$path = new cf::path $path, $origin && $origin->path;	2154	$path = normalise $path, $origin;
1324	my $key = $path->as_string;
1325		2155
1326	cf::lock_wait "map_find:$key";	2156	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1327
1328	$cf::MAP{$key} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	2157	my $guard2 = cf::lock_acquire "map_find:$path";
1330		2158
1331	# do it the slow way	2159	$cf::MAP{$path} || do {
1332	my $map = $path->load_temp;	2160	my $map = new_from_path cf::map $path
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	2161	or return;
1345		2162
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	2163	$map->{last_save} = $cf::RUNTIME;
1358		2164
1359	Coro::cede;	2165	$map->load_header
		2166	or return;
1360		2167
1361	if ($map->should_reset) {	2168	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2169	# doing this can freeze the server in a sync job, obviously
		2170	#$cf::WAIT_FOR_TICK->wait;
		2171	undef $guard2;
		2172	undef $guard1;
1362	$map->reset;	2173	$map->reset;
1363	undef $guard;
1364	$map = find $path	2174	return find $path;
1365	or return;
1366	}	2175	}
1367		2176
1368	$cf::MAP{$key} = $map	2177	$cf::MAP{$path} = $map
1369	}	2178	}
1370	}	2179	}
		2180
		2181	sub pre_load { }
		2182	#sub post_load { } # XS
1371		2183
1372	sub load {	2184	sub load {
1373	my ($self) = @_;	2185	my ($self) = @_;
1374		2186
		2187	local $self->{deny_reset} = 1; # loading can take a long time
		2188
1375	my $path = $self->{path};	2189	my $path = $self->{path};
		2190
		2191	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2192	my $guard = cf::lock_acquire "map_data:$path";
1377		2193
1378	return if $self->in_memory != cf::MAP_SWAPPED;	2194	return unless $self->valid;
		2195	return unless $self->state == cf::MAP_SWAPPED;
1379		2196
1380	$self->in_memory (cf::MAP_LOADING);
1381
1382	$self->alloc;	2197	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	2198
		2199	$self->pre_load;
		2200	cf::cede_to_tick;
		2201
		2202	if (exists $self->{load_path}) {
		2203	my $f = new_from_file cf::object::thawer $self->{load_path};
		2204	$f->skip_block;
		2205	$self->_load_objects ($f)
1384	or return;	2206	or return;
1385		2207
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2208	$self->post_load_original
1387	if delete $self->{load_original};	2209	if delete $self->{load_original};
1388		2210
1389	if (my $uniq = $path->uniq_path) {	2211	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	2212	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	2213	unless (aio_stat $uniq) {
		2214	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	2215	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	2216	$self->_load_objects ($f);
		2217	$f->resolve_delayed_derefs;
		2218	}
		2219	}
1394	}	2220	}
1395	}
1396		2221
1397	Coro::cede;	2222	$f->resolve_delayed_derefs;
		2223	} else {
		2224	$self->post_load_original
		2225	if delete $self->{load_original};
		2226	}
1398		2227
		2228	$self->state (cf::MAP_INACTIVE);
		2229
		2230	cf::cede_to_tick;
1399	# now do the right thing for maps	2231	# now do the right thing for maps
1400	$self->link_multipart_objects;	2232	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	2233	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	2234	unless $self->difficulty;
1412	$self->activate;	2235	cf::cede_to_tick;
		2236
		2237	unless ($self->{deny_activate}) {
		2238	$self->decay_objects;
		2239	$self->fix_auto_apply;
		2240	$self->update_buttons;
		2241	cf::cede_to_tick;
		2242	#$self->activate; # no longer activate maps automatically
		2243	}
		2244
		2245	$self->{last_save} = $cf::RUNTIME;
		2246	$self->last_access ($cf::RUNTIME);
		2247	}
		2248
		2249	$self->post_load;
		2250
1413	}	2251	1
1414
1415	Coro::cede;
1416
1417	$self->in_memory (cf::MAP_IN_MEMORY);
1418	}	2252	}
1419		2253
1420	# find and load all maps in the 3x3 area around a map	2254	# customize the map for a given player, i.e.
1421	sub load_diag {	2255	# return the _real_ map. used by e.g. per-player
1422	my ($map) = @_;	2256	# maps to change the path to ~playername/mappath
		2257	sub customise_for {
		2258	my ($self, $ob) = @_;
1423		2259
1424	my @diag; # diagonal neighbours	2260	return find "~" . $ob->name . "/" . $self->{path}
		2261	if $self->per_player;
1425		2262
1426	for (0 .. 3) {	2263	# return find "?party/" . $ob->name . "/" . $self->{path}
1427	my $neigh = $map->tile_path ($_)	2264	# if $self->per_party;
1428	or next;
1429	$neigh = find $neigh, $map
1430	or next;
1431	$neigh->load;
1432		2265
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2266	$self
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}
1436
1437	for (@diag) {
1438	my $neigh = find @$_
1439	or next;
1440	$neigh->load;
1441	}
1442	}	2267	}
1443		2268
1444	sub find_sync {	2269	sub find_sync {
1445	my ($path, $origin) = @_;	2270	my ($path, $origin) = @_;
1446		2271
1447	cf::sync_job { find $path, $origin }	2272	# it's a bug to call this from the main context
		2273	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2274	if $Coro::current == $Coro::main;
		2275
		2276	find $path, $origin
1448	}	2277	}
1449		2278
1450	sub do_load_sync {	2279	sub do_load_sync {
1451	my ($map) = @_;	2280	my ($map) = @_;
1452		2281
1453	cf::sync_job { $map->load };	2282	# it's a bug to call this from the main context
		2283	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2284	if $Coro::current == $Coro::main;
		2285
		2286	$map->load;
1454	}	2287	}
1455		2288
1456	our %MAP_PREFETCH;	2289	our %MAP_PREFETCH;
		2290	our $MAP_PREFETCHER = undef;
		2291
		2292	sub find_async {
		2293	my ($path, $origin, $load) = @_;
		2294
		2295	$path = normalise $path, $origin;
		2296
		2297	if (my $map = $cf::MAP{$path}) {
		2298	return $map if !$load || $map->linkable;
		2299	}
		2300
		2301	$MAP_PREFETCH{$path} |= $load;
		2302
1457	our $MAP_PREFETCHER = Coro::async {	2303	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2304	$Coro::current->{desc} = "map prefetcher";
		2305
1459	while (%MAP_PREFETCH) {	2306	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2307	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2308	if (my $map = find $k) {
		2309	$map->load if $v;
		2310	}
		2311
1462	my $path = delete $MAP_PREFETCH{$key};	2312	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2313	}
1468	Coro::schedule;	2314	}
		2315	undef $MAP_PREFETCHER;
1469	}	2316	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2317	$MAP_PREFETCHER->prio (6);
1484		2318
1485	()	2319	()
		2320	}
		2321
		2322	# common code, used by both ->save and ->swapout
		2323	sub _save {
		2324	my ($self) = @_;
		2325
		2326	$self->{last_save} = $cf::RUNTIME;
		2327
		2328	return unless $self->dirty;
		2329
		2330	my $save = $self->save_path; utf8::encode $save;
		2331	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2332
		2333	$self->{load_path} = $save;
		2334
		2335	return if $self->{deny_save};
		2336
		2337	local $self->{last_access} = $self->last_access;#d#
		2338
		2339	cf::async {
		2340	$Coro::current->{desc} = "map player save";
		2341	$_->contr->save for $self->players;
		2342	};
		2343
		2344	cf::get_slot 0.02;
		2345
		2346	if ($uniq) {
		2347	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2348	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2349	} else {
		2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2351	}
1486	}	2352	}
1487		2353
1488	sub save {	2354	sub save {
1489	my ($self) = @_;	2355	my ($self) = @_;
1490		2356
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2358
1493	$self->{last_save} = $cf::RUNTIME;	2359	$self->_save;
1494
1495	return unless $self->dirty;
1496
1497	my $save = $self->{path}->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1499
1500	$self->{load_path} = $save;
1501
1502	return if $self->{deny_save};
1503
1504	local $self->{last_access} = $self->last_access;#d#
1505
1506	cf::async {
1507	$_->contr->save for $self->players;
1508	};
1509
1510	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}
1516	}	2360	}
1517		2361
1518	sub swap_out {	2362	sub swap_out {
1519	my ($self) = @_;	2363	my ($self) = @_;
1520		2364
1521	# save first because save cedes
1522	$self->save;
1523
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2366
		2367	return if !$self->linkable;
		2368	return if $self->{deny_save};
1526	return if $self->players;	2369	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};
1529		2370
		2371	# first deactivate the map and "unlink" it from the core
		2372	$self->deactivate;
		2373	$_->clear_links_to ($self) for values %cf::MAP;
		2374	$self->state (cf::MAP_SWAPPED);
		2375
		2376	# then atomically save
		2377	$self->_save;
		2378
		2379	# then free the map
1530	$self->clear;	2380	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2381	}
1533		2382
1534	sub reset_at {	2383	sub reset_at {
1535	my ($self) = @_;	2384	my ($self) = @_;
1536		2385
1537	# TODO: safety, remove and allow resettable per-player maps	2386	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2387	return 1e99 if $self->{deny_reset};
1540		2388
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2389	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2390	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2391
…		…
1548	my ($self) = @_;	2396	my ($self) = @_;
1549		2397
1550	$self->reset_at <= $cf::RUNTIME	2398	$self->reset_at <= $cf::RUNTIME
1551	}	2399	}
1552		2400
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2401	sub reset {
1575	my ($self) = @_;	2402	my ($self) = @_;
1576		2403
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2404	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2405
1579	return if $self->players;	2406	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2407
1582	warn "resetting map ", $self->path;#d#	2408	cf::trace "resetting map ", $self->path, "\n";
		2409
		2410	$self->state (cf::MAP_SWAPPED);
		2411
		2412	# need to save uniques path
		2413	unless ($self->{deny_save}) {
		2414	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2415
		2416	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2417	if $uniq;
		2418	}
1583		2419
1584	delete $cf::MAP{$self->path};	2420	delete $cf::MAP{$self->path};
1585		2421
		2422	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2423	$_->clear_links_to ($self) for values %cf::MAP;
		2424	$self->clear;
1587		2425
1588	$self->unlink_save;	2426	$self->unlink_save;
1589	$self->destroy;	2427	$self->destroy;
1590	}	2428	}
1591		2429
1592	my $nuke_counter = "aaaa";	2430	my $nuke_counter = "aaaa";
1593		2431
1594	sub nuke {	2432	sub nuke {
1595	my ($self) = @_;	2433	my ($self) = @_;
1596		2434
		2435	{
		2436	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2437
		2438	delete $cf::MAP{$self->path};
		2439
		2440	$self->unlink_save;
		2441
		2442	bless $self, "cf::map::wrap";
		2443	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2444	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2445	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2446	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2447
		2448	$cf::MAP{$self->path} = $self;
		2449	}
		2450
1600	$self->reset; # polite request, might not happen	2451	$self->reset; # polite request, might not happen
1601	}	2452	}
1602		2453
1603	sub customise_for {	2454	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2455
1606	if ($map->per_player) {	2456	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2457	maps. May block.
		2458
		2459	=cut
		2460
		2461	sub tmp_maps() {
1608	}	2462	[
		2463	map {
		2464	utf8::decode $_;
		2465	/\.map$/
		2466	? normalise $_
		2467	: ()
		2468	} @{ aio_readdir $TMPDIR or [] }
		2469	]
		2470	}
1609		2471
1610	$map	2472	=item $maps = cf::map::random_maps
		2473
		2474	Returns an arrayref with all map paths of currently instantiated and saved
		2475	random maps. May block.
		2476
		2477	=cut
		2478
		2479	sub random_maps() {
		2480	[
		2481	map {
		2482	utf8::decode $_;
		2483	/\.map$/
		2484	? normalise "?random/$_"
		2485	: ()
		2486	} @{ aio_readdir $RANDOMDIR or [] }
		2487	]
1611	}	2488	}
1612		2489
1613	=item cf::map::unique_maps	2490	=item cf::map::unique_maps
1614		2491
1615	Returns an arrayref of cf::path's of all shared maps that have	2492	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2493	instantiated unique items. May block.
1617		2494
1618	=cut	2495	=cut
1619		2496
1620	sub unique_maps() {	2497	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2498	[
1622	or return;	2499	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2500	utf8::decode $_;
1628	next if /\.pst$/;	2501	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2502	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2503	? ()
1631	push @paths, new cf::path $_;	2504	: normalise $_
		2505	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2506	]
1633
1634	\@paths
1635	}	2507	}
1636		2508
1637	package cf;	2509	=item cf::map::static_maps
		2510
		2511	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2512	file in the shared directory excluding F</styles> and F</editor>). May
		2513	block.
		2514
		2515	=cut
		2516
		2517	sub static_maps() {
		2518	my @dirs = "";
		2519	my @maps;
		2520
		2521	while (@dirs) {
		2522	my $dir = shift @dirs;
		2523
		2524	next if $dir eq "/styles" || $dir eq "/editor";
		2525
		2526	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2527	or return;
		2528
		2529	for (@$files) {
		2530	s/\.map$// or next;
		2531	utf8::decode $_;
		2532	push @maps, "$dir/$_";
		2533	}
		2534
		2535	push @dirs, map "$dir/$_", @$dirs;
		2536	}
		2537
		2538	\@maps
		2539	}
1638		2540
1639	=back	2541	=back
1640		2542
1641	=head3 cf::object	2543	=head3 cf::object
1642		2544
…		…
1646		2548
1647	=over 4	2549	=over 4
1648		2550
1649	=item $ob->inv_recursive	2551	=item $ob->inv_recursive
1650		2552
1651	Returns the inventory of the object _and_ their inventories, recursively.	2553	Returns the inventory of the object I<and> their inventories, recursively,
		2554	but I<not> the object itself.
1652		2555
1653	=cut	2556	=cut
1654		2557
1655	sub inv_recursive_;	2558	sub inv_recursive_;
1656	sub inv_recursive_ {	2559	sub inv_recursive_ {
…		…
1659		2562
1660	sub inv_recursive {	2563	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2564	inv_recursive_ inv $_[0]
1662	}	2565	}
1663		2566
		2567	=item $ref = $ob->ref
		2568
		2569	Creates and returns a persistent reference to an object that can be stored as a string.
		2570
		2571	=item $ob = cf::object::deref ($refstring)
		2572
		2573	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2574	even if the object actually exists. May block.
		2575
		2576	=cut
		2577
		2578	sub deref {
		2579	my ($ref) = @_;
		2580
		2581	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2582	my ($uuid, $name) = ($1, $2);
		2583	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2584	or return;
		2585	$pl->ob->uuid eq $uuid
		2586	or return;
		2587
		2588	$pl->ob
		2589	} else {
		2590	warn "$ref: cannot resolve object reference\n";
		2591	undef
		2592	}
		2593	}
		2594
1664	package cf;	2595	package cf;
1665		2596
1666	=back	2597	=back
1667		2598
1668	=head3 cf::object::player	2599	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2605	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2606	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2607	dialogue with the given NPC character.
1677		2608
1678	=cut	2609	=cut
		2610
		2611	our $SAY_CHANNEL = {
		2612	id => "say",
		2613	title => "Map",
		2614	reply => "say ",
		2615	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2616	};
		2617
		2618	our $CHAT_CHANNEL = {
		2619	id => "chat",
		2620	title => "Chat",
		2621	reply => "chat ",
		2622	tooltip => "Player chat and shouts, global to the server.",
		2623	};
1679		2624
1680	# rough implementation of a future "reply" method that works	2625	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2626	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2627	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2628	sub cf::object::player::reply($$$;$) {
…		…
1685		2630
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2631	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2632
1688	if ($self->{record_replies}) {	2633	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2634	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2635
1690	} else {	2636	} else {
		2637	my $pl = $self->contr;
		2638
		2639	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2640	my $dialog = $pl->{npc_dialog};
		2641	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2642
		2643	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2644	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2645	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2646	}
1693	}	2647	}
		2648	}
		2649
		2650	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2651
		2652	=cut
		2653
		2654	sub cf::object::send_msg {
		2655	my $pl = shift->contr
		2656	or return;
		2657	$pl->send_msg (@_);
1694	}	2658	}
1695		2659
1696	=item $player_object->may ("access")	2660	=item $player_object->may ("access")
1697		2661
1698	Returns wether the given player is authorized to access resource "access"	2662	Returns wether the given player is authorized to access resource "access"
…		…
1711		2675
1712	=item $player_object->enter_link	2676	=item $player_object->enter_link
1713		2677
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2678	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2679
1716	The player should be reaosnably safe there for short amounts of time. You	2680	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2681	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2682	though, as the player cannot control the character while it is on the link
		2683	map.
		2684
		2685	Will never block.
1718		2686
1719	=item $player_object->leave_link ($map, $x, $y)	2687	=item $player_object->leave_link ($map, $x, $y)
1720		2688
1721	Moves the player out of the specila link map onto the given map. If the	2689	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2690	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2691	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2692	fails, to the emergency map position.
1725		2693
1726	Might block.	2694	Might block.
1727		2695
1728	=cut	2696	=cut
		2697
		2698	sub link_map {
		2699	unless ($LINK_MAP) {
		2700	$LINK_MAP = cf::map::find "{link}"
		2701	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2702	$LINK_MAP->load;
		2703	}
		2704
		2705	$LINK_MAP
		2706	}
1729		2707
1730	sub cf::object::player::enter_link {	2708	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2709	my ($self) = @_;
1732		2710
1733	$self->deactivate_recursive;	2711	$self->deactivate_recursive;
1734		2712
1735	return if $self->map == $LINK_MAP;	2713	++$self->{_link_recursion};
		2714
		2715	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2716
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2718	if $self->map && $self->map->{path} ne "{link}";
1739		2719
1740	$self->enter_map ($LINK_MAP, 20, 20);	2720	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1741	}	2721	}
1742		2722
1743	sub cf::object::player::leave_link {	2723	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2724	my ($self, $map, $x, $y) = @_;
		2725
		2726	return unless $self->contr->active;
1745		2727
1746	my $link_pos = delete $self->{_link_pos};	2728	my $link_pos = delete $self->{_link_pos};
1747		2729
1748	unless ($map) {	2730	unless ($map) {
1749	# restore original map position	2731	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2742	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2743	unless (defined $x) && (defined $y);
1762		2744
1763	# use -1 or undef as default coordinates, not 0, 0	2745	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2746	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2747	if $x <= 0 && $y <= 0;
1766		2748
1767	$map->load;	2749	$map->load;
1768	$map->load_diag;
1769		2750
1770	return unless $self->contr->active;	2751	return unless $self->contr->active;
		2752
		2753	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2754	if ($self->enter_map ($map, $x, $y)) {
		2755	# entering was successful
		2756	delete $self->{_link_recursion};
		2757	# only activate afterwards, to support waiting in hooks
1771	$self->activate_recursive;	2758	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}
1774
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},	2759	}
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2760
1789	# try to abort aborted map switching on player login :)	2761	}
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2762
1807	=item $player_object->goto ($path, $x, $y)	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1808		2764
		2765	Moves the player to the given map-path and coordinates by first freezing
		2766	her, loading and preparing them map, calling the provided $check callback
		2767	that has to return the map if sucecssful, and then unfreezes the player on
		2768	the new (success) or old (failed) map position. In either case, $done will
		2769	be called at the end of this process.
		2770
		2771	Note that $check will be called with a potentially non-loaded map, so if
		2772	it needs a loaded map it has to call C<< ->load >>.
		2773
1809	=cut	2774	=cut
		2775
		2776	our $GOTOGEN;
1810		2777
1811	sub cf::object::player::goto {	2778	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2779	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2780
1814	$path = new cf::path $path;	2781	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2782	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2783	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2784	($path, $x, $y) = @$EMERGENCY_POSITION;
		2785	}
		2786
		2787	# do generation counting so two concurrent goto's will be executed in-order
		2788	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2789
1816	$self->enter_link;	2790	$self->enter_link;
1817		2791
1818	(async {	2792	(async {
1819	my $map = cf::map::find $path->as_string;	2793	$Coro::current->{desc} = "player::goto $path $x $y";
		2794
		2795	# *tag paths override both path and x|y
		2796	if ($path =~ /^\*(.*)$/) {
		2797	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2798	my $ob = $obs[rand @obs];
		2799
		2800	# see if we actually can go there
		2801	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2802	$ob = $obs[rand @obs];
		2803	} else {
		2804	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2805	}
		2806	# else put us there anyways for now #d#
		2807
		2808	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2809	} else {
		2810	($path, $x, $y) = (undef, undef, undef);
		2811	}
		2812	}
		2813
		2814	my $map = eval {
		2815	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2816
		2817	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2818	$map = $map->customise_for ($self);
1821		2819	$map = $check->($map, $x, $y, $self) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2820	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2821	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2822	}
1826		2823
		2824	$map
		2825	};
		2826
		2827	if ($@) {
		2828	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2829	LOG llevError | logBacktrace, Carp::longmess $@;
		2830	}
		2831
		2832	if ($gen == $self->{_goto_generation}) {
		2833	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
		2835	}
		2836
		2837	$done->($self) if $done;
1828	})->prio (1);	2838	})->prio (1);
1829	}	2839	}
1830		2840
1831	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
1832		2842
…		…
1834		2844
1835	sub parse_random_map_params {	2845	sub parse_random_map_params {
1836	my ($spec) = @_;	2846	my ($spec) = @_;
1837		2847
1838	my $rmp = { # defaults	2848	my $rmp = { # defaults
1839	xsize => 10,	2849	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2850	ysize => (cf::rndm 15, 40),
		2851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2852	#layout => string,
1841	};	2853	};
1842		2854
1843	for (split /\n/, $spec) {	2855	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2856	my ($k, $v) = split /\s+/, $_, 2;
1845		2857
…		…
1857	# that depends on the exit object	2869	# that depends on the exit object
1858		2870
1859	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
1860		2872
1861	if ($exit->map) {	2873	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2874	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
1866	}	2880	}
1867		2881
1868	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
1869		2883
1870	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1871	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
		2886	my $meta = "$RANDOMDIR/$md5.meta";
1872		2887
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2889	aio_write $fh, 0, (length $data), $data, 0;
		2890	undef $fh;
		2891	aio_rename "$meta~", $meta;
1875		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
1876	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
1878	}	2899	}
1879	}	2900	}
1880		2901
1881	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
…		…
1884	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
1885		2906
1886	$self->enter_link;	2907	$self->enter_link;
1887		2908
1888	(async {	2909	(async {
1889	$self->deactivate_recursive; # just to be sure	2910	$Coro::current->{desc} = "enter_exit";
		2911
1890	unless (eval {	2912	unless (eval {
		2913	$self->deactivate_recursive; # just to be sure
		2914
		2915	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2916	my $x = $exit->stats->hp;
		2917	my $y = $exit->stats->sp;
		2918
		2919	# special map handling
		2920	my $slaying = $exit->slaying;
		2921
		2922	# special map handling
		2923	if ($slaying eq "/!") {
		2924	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2925
1891	prepare_random_map $exit	2926	prepare_random_map $exit
		2927	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2928
1892	if $exit->slaying eq "/!";	2929	$map = $exit->slaying;
1893		2930
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2931	} elsif ($slaying eq '!up') {
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2932	$map = $exit->map->tile_path (cf::TILE_UP);
		2933	$x = $exit->x;
		2934	$y = $exit->y;
1896		2935
		2936	} elsif ($slaying eq '!down') {
		2937	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2938	$x = $exit->x;
		2939	$y = $exit->y;
		2940	}
		2941
		2942	$self->goto ($map, $x, $y);
		2943
		2944	# if exit is damned, update players death & WoR home-position
		2945	$self->contr->savebed ($map, $x, $y)
		2946	if $exit->flag (cf::FLAG_DAMNED);
		2947
1897	1;	2948	1
1898	}) {	2949	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2950	$self->message ("Something went wrong deep within the deliantra server. "
1900	. "I'll try to bring you back to the map you were before. "	2951	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2952	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2953	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2954
1904	warn "ERROR in enter_exit: $@";	2955	error "ERROR in enter_exit: $@";
1905	$self->leave_link;	2956	$self->leave_link;
1906	}	2957	}
1907	})->prio (1);	2958	})->prio (1);
1908	}	2959	}
1909		2960
…		…
1920		2971
1921	sub cf::client::send_drawinfo {	2972	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2973	my ($self, $text, $flags) = @_;
1923		2974
1924	utf8::encode $text;	2975	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2976	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2977	}
1927		2978
		2979	=item $client->send_big_packet ($pkt)
		2980
		2981	Like C<send_packet>, but tries to compress large packets, and fragments
		2982	them as required.
		2983
		2984	=cut
		2985
		2986	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2987
		2988	sub cf::client::send_big_packet {
		2989	my ($self, $pkt) = @_;
		2990
		2991	# try lzf for large packets
		2992	$pkt = "lzf " . Compress::LZF::compress $pkt
		2993	if 1024 <= length $pkt and $self->{can_lzf};
		2994
		2995	# split very large packets
		2996	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2997	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2998	$pkt = "frag";
		2999	}
		3000
		3001	$self->send_packet ($pkt);
		3002	}
		3003
		3004	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3005
		3006	Send a drawinfo or msg packet to the client, formatting the msg for the
		3007	client if neccessary. C<$type> should be a string identifying the type of
		3008	the message, with C<log> being the default. If C<$color> is negative, suppress
		3009	the message unless the client supports the msg packet.
		3010
		3011	=cut
		3012
		3013	# non-persistent channels (usually the info channel)
		3014	our %CHANNEL = (
		3015	"c/motd" => {
		3016	id => "infobox",
		3017	title => "MOTD",
		3018	reply => undef,
		3019	tooltip => "The message of the day",
		3020	},
		3021	"c/identify" => {
		3022	id => "infobox",
		3023	title => "Identify",
		3024	reply => undef,
		3025	tooltip => "Items recently identified",
		3026	},
		3027	"c/examine" => {
		3028	id => "infobox",
		3029	title => "Examine",
		3030	reply => undef,
		3031	tooltip => "Signs and other items you examined",
		3032	},
		3033	"c/shopinfo" => {
		3034	id => "infobox",
		3035	title => "Shop Info",
		3036	reply => undef,
		3037	tooltip => "What your bargaining skill tells you about the shop",
		3038	},
		3039	"c/book" => {
		3040	id => "infobox",
		3041	title => "Book",
		3042	reply => undef,
		3043	tooltip => "The contents of a note or book",
		3044	},
		3045	"c/lookat" => {
		3046	id => "infobox",
		3047	title => "Look",
		3048	reply => undef,
		3049	tooltip => "What you saw there",
		3050	},
		3051	"c/who" => {
		3052	id => "infobox",
		3053	title => "Players",
		3054	reply => undef,
		3055	tooltip => "Shows players who are currently online",
		3056	},
		3057	"c/body" => {
		3058	id => "infobox",
		3059	title => "Body Parts",
		3060	reply => undef,
		3061	tooltip => "Shows which body parts you posess and are available",
		3062	},
		3063	"c/statistics" => {
		3064	id => "infobox",
		3065	title => "Statistics",
		3066	reply => undef,
		3067	tooltip => "Shows your primary statistics",
		3068	},
		3069	"c/skills" => {
		3070	id => "infobox",
		3071	title => "Skills",
		3072	reply => undef,
		3073	tooltip => "Shows your experience per skill and item power",
		3074	},
		3075	"c/shopitems" => {
		3076	id => "infobox",
		3077	title => "Shop Items",
		3078	reply => undef,
		3079	tooltip => "Shows the items currently for sale in this shop",
		3080	},
		3081	"c/resistances" => {
		3082	id => "infobox",
		3083	title => "Resistances",
		3084	reply => undef,
		3085	tooltip => "Shows your resistances",
		3086	},
		3087	"c/pets" => {
		3088	id => "infobox",
		3089	title => "Pets",
		3090	reply => undef,
		3091	tooltip => "Shows information abotu your pets/a specific pet",
		3092	},
		3093	"c/perceiveself" => {
		3094	id => "infobox",
		3095	title => "Perceive Self",
		3096	reply => undef,
		3097	tooltip => "You gained detailed knowledge about yourself",
		3098	},
		3099	"c/uptime" => {
		3100	id => "infobox",
		3101	title => "Uptime",
		3102	reply => undef,
		3103	tooltip => "How long the server has been running since last restart",
		3104	},
		3105	"c/mapinfo" => {
		3106	id => "infobox",
		3107	title => "Map Info",
		3108	reply => undef,
		3109	tooltip => "Information related to the maps",
		3110	},
		3111	"c/party" => {
		3112	id => "party",
		3113	title => "Party",
		3114	reply => "gsay ",
		3115	tooltip => "Messages and chat related to your party",
		3116	},
		3117	"c/death" => {
		3118	id => "death",
		3119	title => "Death",
		3120	reply => undef,
		3121	tooltip => "Reason for and more info about your most recent death",
		3122	},
		3123	"c/say" => $SAY_CHANNEL,
		3124	"c/chat" => $CHAT_CHANNEL,
		3125	);
		3126
		3127	sub cf::client::send_msg {
		3128	my ($self, $channel, $msg, $color, @extra) = @_;
		3129
		3130	$msg = $self->pl->expand_cfpod ($msg)
		3131	unless $color & cf::NDI_VERBATIM;
		3132
		3133	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3134
		3135	# check predefined channels, for the benefit of C
		3136	if ($CHANNEL{$channel}) {
		3137	$channel = $CHANNEL{$channel};
		3138
		3139	$self->ext_msg (channel_info => $channel);
		3140	$channel = $channel->{id};
		3141
		3142	} elsif (ref $channel) {
		3143	# send meta info to client, if not yet sent
		3144	unless (exists $self->{channel}{$channel->{id}}) {
		3145	$self->{channel}{$channel->{id}} = $channel;
		3146	$self->ext_msg (channel_info => $channel);
		3147	}
		3148
		3149	$channel = $channel->{id};
		3150	}
		3151
		3152	return unless @extra || length $msg;
		3153
		3154	# default colour, mask it out
		3155	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3156	if $color & cf::NDI_DEF;
		3157
		3158	my $pkt = "msg "
		3159	. $self->{json_coder}->encode (
		3160	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3161	);
		3162
		3163	$self->send_big_packet ($pkt);
		3164	}
		3165
		3166	=item $client->ext_msg ($type, @msg)
		3167
		3168	Sends an ext event to the client.
		3169
		3170	=cut
		3171
		3172	sub cf::client::ext_msg($$@) {
		3173	my ($self, $type, @msg) = @_;
		3174
		3175	if ($self->extcmd == 2) {
		3176	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3177	} elsif ($self->extcmd == 1) { # TODO: remove
		3178	push @msg, msgtype => "event_$type";
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3180	}
		3181	}
		3182
		3183	=item $client->ext_reply ($msgid, @msg)
		3184
		3185	Sends an ext reply to the client.
		3186
		3187	=cut
		3188
		3189	sub cf::client::ext_reply($$@) {
		3190	my ($self, $id, @msg) = @_;
		3191
		3192	return unless $self->extcmd == 2;
		3193
		3194	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3195	}
1928		3196
1929	=item $success = $client->query ($flags, "text", \&cb)	3197	=item $success = $client->query ($flags, "text", \&cb)
1930		3198
1931	Queues a query to the client, calling the given callback with	3199	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3200	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3201	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		3202
1935	Queries can fail, so check the return code. Or don't, as queries will become	3203	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	3204	become reliable at some point in the future.
1937		3205
1938	=cut	3206	=cut
1939		3207
1940	sub cf::client::query {	3208	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	3209	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	3217	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3218	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		3219
1952	$self->send_packet ($self->{query_queue}[0][0])	3220	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	3221	if @{ $self->{query_queue} } == 1;
		3222
		3223	1
1954	}	3224	}
1955		3225
1956	cf::client->attach (	3226	cf::client->attach (
		3227	on_connect => sub {
		3228	my ($ns) = @_;
		3229
		3230	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3231	},
1957	on_reply => sub {	3232	on_reply => sub {
1958	my ($ns, $msg) = @_;	3233	my ($ns, $msg) = @_;
1959		3234
1960	# this weird shuffling is so that direct followup queries	3235	# this weird shuffling is so that direct followup queries
1961	# get handled first	3236	# get handled first
1962	my $queue = delete $ns->{query_queue}	3237	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	3238	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		3239
1965	(shift @$queue)->[1]->($msg);	3240	(shift @$queue)->[1]->($msg);
		3241	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		3242
1967	push @{ $ns->{query_queue} }, @$queue;	3243	push @{ $ns->{query_queue} }, @$queue;
1968		3244
1969	if (@{ $ns->{query_queue} } == @$queue) {	3245	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	3246	if (@$queue) {
…		…
1972	} else {	3248	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3249	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	3250	}
1975	}	3251	}
1976	},	3252	},
		3253	on_exticmd => sub {
		3254	my ($ns, $buf) = @_;
		3255
		3256	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3257
		3258	if (ref $msg) {
		3259	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3260
		3261	my @reply;
		3262
		3263	if (my $cb = $EXTICMD{$type}) {
		3264	@reply = $cb->($ns, @payload);
		3265	}
		3266
		3267	$ns->ext_reply ($reply, @reply)
		3268	if $reply;
		3269
		3270	} else {
		3271	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3272	}
		3273
		3274	cf::override;
		3275	},
1977	);	3276	);
1978		3277
1979	=item $client->async (\&cb)	3278	=item $client->async (\&cb)
1980		3279
1981	Create a new coroutine, running the specified callback. The coroutine will	3280	Create a new coroutine, running the specified callback. The coroutine will
…		…
1997		3296
1998	$coro	3297	$coro
1999	}	3298	}
2000		3299
2001	cf::client->attach (	3300	cf::client->attach (
2002	on_destroy => sub {	3301	on_client_destroy => sub {
2003	my ($ns) = @_;	3302	my ($ns) = @_;
2004		3303
2005	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3304	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2006	},	3305	},
2007	);	3306	);
…		…
2022	our $safe = new Safe "safe";	3321	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3322	our $safe_hole = new Safe::Hole;
2024		3323
2025	$SIG{FPE} = 'IGNORE';	3324	$SIG{FPE} = 'IGNORE';
2026		3325
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3326	$safe->permit_only (Opcode::opset qw(
		3327	:base_core :base_mem :base_orig :base_math :base_loop
		3328	grepstart grepwhile mapstart mapwhile
		3329	sort time
		3330	));
2028		3331
2029	# here we export the classes and methods available to script code	3332	# here we export the classes and methods available to script code
2030		3333
2031	=pod	3334	=pod
2032		3335
2033	The following fucntions and emthods are available within a safe environment:	3336	The following functions and methods are available within a safe environment:
2034		3337
2035	cf::object contr pay_amount pay_player map	3338	cf::object
		3339	contr pay_amount pay_player map x y force_find force_add destroy
		3340	insert remove name archname title slaying race decrease split
		3341	value
		3342
2036	cf::object::player player	3343	cf::object::player
2037	cf::player peaceful	3344	player
2038	cf::map trigger	3345
		3346	cf::player
		3347	peaceful
		3348
		3349	cf::map
		3350	trigger
2039		3351
2040	=cut	3352	=cut
2041		3353
2042	for (	3354	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3355	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3356	insert remove inv nrof name archname title slaying race
		3357	decrease split destroy change_exp value msg lore send_msg)],
2044	["cf::object::player" => qw(player)],	3358	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3359	["cf::player" => qw(peaceful send_msg)],
2046	["cf::map" => qw(trigger)],	3360	["cf::map" => qw(trigger)],
2047	) {	3361	) {
2048	no strict 'refs';
2049	my ($pkg, @funs) = @$_;	3362	my ($pkg, @funs) = @$_;
2050	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3363	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2051	for @funs;	3364	for @funs;
2052	}	3365	}
2053		3366
…		…
2068		3381
2069	my $qcode = $code;	3382	my $qcode = $code;
2070	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3383	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2071	$qcode =~ s/\n/\\n/g;	3384	$qcode =~ s/\n/\\n/g;
2072		3385
		3386	%vars = (_dummy => 0) unless %vars;
		3387
		3388	my @res;
2073	local $_;	3389	local $_;
2074	local @safe::cf::_safe_eval_args = values %vars;
2075		3390
2076	my $eval =	3391	my $eval =
2077	"do {\n"	3392	"do {\n"
2078	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3393	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2079	. "#line 0 \"{$qcode}\"\n"	3394	. "#line 0 \"{$qcode}\"\n"
2080	. $code	3395	. $code
2081	. "\n}"	3396	. "\n}"
2082	;	3397	;
2083		3398
		3399	if ($CFG{safe_eval}) {
2084	sub_generation_inc;	3400	sub_generation_inc;
		3401	local @safe::cf::_safe_eval_args = values %vars;
2085	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3402	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2086	sub_generation_inc;	3403	sub_generation_inc;
		3404	} else {
		3405	local @cf::_safe_eval_args = values %vars;
		3406	@res = wantarray ? eval eval : scalar eval $eval;
		3407	}
2087		3408
2088	if ($@) {	3409	if ($@) {
2089	warn "$@";	3410	warn "$@",
2090	warn "while executing safe code '$code'\n";	3411	"while executing safe code '$code'\n",
2091	warn "with arguments " . (join " ", %vars) . "\n";	3412	"with arguments " . (join " ", %vars) . "\n";
2092	}	3413	}
2093		3414
2094	wantarray ? @res : $res[0]	3415	wantarray ? @res : $res[0]
2095	}	3416	}
2096		3417
…		…
2110	=cut	3431	=cut
2111		3432
2112	sub register_script_function {	3433	sub register_script_function {
2113	my ($fun, $cb) = @_;	3434	my ($fun, $cb) = @_;
2114		3435
2115	no strict 'refs';	3436	$fun = "safe::$fun" if $CFG{safe_eval};
2116	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3437	*$fun = $safe_hole->wrap ($cb);
2117	}	3438	}
2118		3439
2119	=back	3440	=back
2120		3441
2121	=cut	3442	=cut
2122		3443
2123	#############################################################################	3444	#############################################################################
		3445	# the server's init and main functions
2124		3446
2125	=head2 EXTENSION DATABASE SUPPORT	3447	sub load_facedata($) {
		3448	my ($path) = @_;
2126		3449
2127	Crossfire maintains a very simple database for extension use. It can	3450	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3451	# for this (global event?)
2129	excludes objects.	3452	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3453
2131	The parameter C<$family> should best start with the name of the extension	3454	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3455
2134	=over 4	3456	trace "loading facedata from $path\n";
2135		3457
2136	=item $hashref = cf::db_get $family	3458	my $facedata = decode_storable load_file $path;
2137		3459
2138	Return a hashref for use by the extension C<$family>, which can be	3460	$facedata->{version} == 2
2139	modified. After modifications, you have to call C<cf::db_dirty> or	3461	or cf::cleanup "$path: version mismatch, cannot proceed.";
2140	C<cf::db_sync>.
2141		3462
2142	=item $value = cf::db_get $family => $key	3463	# patch in the exptable
2143		3464	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2144	Returns a single value from the database	3465	$facedata->{resource}{"res/exp_table"} = {
2145		3466	type => FT_RSRC,
2146	=item cf::db_put $family => $hashref	3467	data => $exp_table,
2147		3468	hash => (Digest::MD5::md5 $exp_table),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3469	};
		3470	cf::cede_to_tick;
2197		3471
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3472	{
		3473	my $faces = $facedata->{faceinfo};
2202		3474
2203	sub db_get($;$) {	3475	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		3477
2209	sub db_put($$;$) {	3478	cf::face::set_visibility $idx, $info->{visibility};
2210	if (@_ >= 3) {	3479	cf::face::set_magicmap $idx, $info->{magicmap};
2211	$DB->{$_[0]}{$_[1]} = $_[2];	3480	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2212	} else {	3481	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2213	$DB->{$_[0]} = $_[1];	3482	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2214	}
2215	db_dirty;
2216	}
2217		3483
2218	cf::global->attach (	3484	cf::cede_to_tick;
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3485	}
2223	);
2224	}
2225		3486
2226	#############################################################################	3487	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3488	next unless $info->{smooth};
2228		3489
2229	sub cfg_load {	3490	my $idx = cf::face::find $face
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3491	or next;
2231	or return;
2232		3492
2233	local $/;	3493	if (my $smooth = cf::face::find $info->{smooth}) {
2234	*CFG = YAML::Syck::Load <$fh>;	3494	cf::face::set_smooth $idx, $smooth;
		3495	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3496	} else {
		3497	error "smooth face '$info->{smooth}' not found for face '$face'";
		3498	}
2235		3499
		3500	cf::cede_to_tick;
		3501	}
		3502	}
		3503
		3504	{
		3505	my $anims = $facedata->{animinfo};
		3506
		3507	while (my ($anim, $info) = each %$anims) {
		3508	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3509	cf::cede_to_tick;
		3510	}
		3511
		3512	cf::anim::invalidate_all; # d'oh
		3513	}
		3514
		3515	{
		3516	my $res = $facedata->{resource};
		3517
		3518	while (my ($name, $info) = each %$res) {
		3519	if (defined (my $type = $info->{type})) {
		3520	# TODO: different hash - must free and use new index, or cache ixface data queue
		3521	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3522
		3523	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3524	cf::face::set_type $idx, $type;
		3525	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3526	} else {
		3527	# $RESOURCE{$name} = $info; # unused
		3528	}
		3529
		3530	cf::cede_to_tick;
		3531	}
		3532	}
		3533
		3534	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3535
		3536	1
		3537	}
		3538
		3539	register_exticmd fx_want => sub {
		3540	my ($ns, $want) = @_;
		3541
		3542	while (my ($k, $v) = each %$want) {
		3543	$ns->fx_want ($k, $v);
		3544	}
		3545	};
		3546
		3547	sub load_resource_file($) {
		3548	my $guard = lock_acquire "load_resource_file";
		3549
		3550	my $status = load_resource_file_ $_[0];
		3551	get_slot 0.1, 100;
		3552	cf::arch::commit_load;
		3553
		3554	$status
		3555	}
		3556
		3557	sub reload_regions {
		3558	# HACK to clear player env face cache, we need some signal framework
		3559	# for this (global event?)
		3560	%ext::player_env::MUSIC_FACE_CACHE = ();
		3561
		3562	load_resource_file "$MAPDIR/regions"
		3563	or die "unable to load regions file\n";
		3564
		3565	for (cf::region::list) {
		3566	$_->{match} = qr/$_->{match}/
		3567	if exists $_->{match};
		3568	}
		3569	}
		3570
		3571	sub reload_facedata {
		3572	load_facedata "$DATADIR/facedata"
		3573	or die "unable to load facedata\n";
		3574	}
		3575
		3576	sub reload_archetypes {
		3577	load_resource_file "$DATADIR/archetypes"
		3578	or die "unable to load archetypes\n";
		3579	}
		3580
		3581	sub reload_treasures {
		3582	load_resource_file "$DATADIR/treasures"
		3583	or die "unable to load treasurelists\n";
		3584	}
		3585
		3586	sub reload_sound {
		3587	trace "loading sound config from $DATADIR/sound\n";
		3588
		3589	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3590
		3591	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3592	my $sound = $soundconf->{compat}[$_]
		3593	or next;
		3594
		3595	my $face = cf::face::find "sound/$sound->[1]";
		3596	cf::sound::set $sound->[0] => $face;
		3597	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3598	}
		3599
		3600	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3601	my $face = cf::face::find "sound/$v";
		3602	cf::sound::set $k => $face;
		3603	}
		3604	}
		3605
		3606	sub reload_resources {
		3607	trace "reloading resource files...\n";
		3608
		3609	reload_exp_table;
		3610	reload_materials;
		3611	reload_facedata;
		3612	reload_sound;
		3613	reload_archetypes;
		3614	reload_regions;
		3615	reload_treasures;
		3616
		3617	trace "finished reloading resource files\n";
		3618	}
		3619
		3620	sub reload_config {
		3621	trace "reloading config file...\n";
		3622
		3623	my $config = load_file "$CONFDIR/config";
		3624	utf8::decode $config;
		3625	*CFG = decode_yaml $config;
		3626
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3627	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2237		3628
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3629	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3630	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2240		3631
2241	if (exists $CFG{mlockall}) {	3632	if (exists $CFG{mlockall}) {
…		…
2245	};	3636	};
2246	warn $@ if $@;	3637	warn $@ if $@;
2247	}	3638	}
2248	}	3639	}
2249		3640
		3641	sub pidfile() {
		3642	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3643	or die "$PIDFILE: $!";
		3644	flock $fh, &Fcntl::LOCK_EX
		3645	or die "$PIDFILE: flock: $!";
		3646	$fh
		3647	}
		3648
		3649	# make sure only one server instance is running at any one time
		3650	sub atomic {
		3651	my $fh = pidfile;
		3652
		3653	my $pid = <$fh>;
		3654	kill 9, $pid if $pid > 0;
		3655
		3656	seek $fh, 0, 0;
		3657	print $fh $$;
		3658	}
		3659
		3660	sub main_loop {
		3661	trace "EV::loop starting\n";
		3662	if (1) {
		3663	EV::loop;
		3664	}
		3665	trace "EV::loop returned\n";
		3666	goto &main_loop unless $REALLY_UNLOOP;
		3667	}
		3668
2250	sub main {	3669	sub main {
		3670	cf::init_globals; # initialise logging
		3671
		3672	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3673	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3674	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3675	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3676
		3677	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3678
2251	# we must not ever block the main coroutine	3679	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3680	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3681	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3682	(async {
		3683	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3684	EV::loop EV::LOOP_ONESHOT;
		3685	})->prio (Coro::PRIO_MAX);
2255	};	3686	};
2256		3687
2257	cfg_load;	3688	evthread_start IO::AIO::poll_fileno;
2258	db_load;	3689
		3690	cf::sync_job {
		3691	cf::incloader::init ();
		3692
		3693	cf::init_anim;
		3694	cf::init_attackmess;
		3695	cf::init_dynamic;
		3696
		3697	cf::load_settings;
		3698
		3699	reload_resources;
		3700	reload_config;
		3701	db_init;
		3702
		3703	cf::init_uuid;
		3704	cf::init_signals;
		3705	cf::init_skills;
		3706
		3707	cf::init_beforeplay;
		3708
		3709	atomic;
		3710
2259	load_extensions;	3711	load_extensions;
2260	Event::loop;	3712
		3713	utime time, time, $RUNTIMEFILE;
		3714
		3715	# no (long-running) fork's whatsoever before this point(!)
		3716	use POSIX ();
		3717	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3718
		3719	cf::_post_init 0;
		3720	};
		3721
		3722	cf::object::thawer::errors_are_fatal 0;
		3723	info "parse errors in files are no longer fatal from this point on.\n";
		3724
		3725	AE::postpone {
		3726	undef &main; # free gobs of memory :)
		3727	};
		3728
		3729	goto &main_loop;
2261	}	3730	}
2262		3731
2263	#############################################################################	3732	#############################################################################
2264	# initialisation and cleanup	3733	# initialisation and cleanup
2265		3734
2266	# install some emergency cleanup handlers	3735	# install some emergency cleanup handlers
2267	BEGIN {	3736	BEGIN {
		3737	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3738	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3739	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3740	cf::cleanup "SIG$signal";
2274	},
2275	);	3741	};
		3742	}
		3743	}
		3744
		3745	sub write_runtime_sync {
		3746	my $t0 = AE::time;
		3747
		3748	# first touch the runtime file to show we are still running:
		3749	# the fsync below can take a very very long time.
		3750
		3751	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3752
		3753	my $guard = cf::lock_acquire "write_runtime";
		3754
		3755	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3756	or return;
		3757
		3758	my $value = $cf::RUNTIME + 90 + 10;
		3759	# 10 is the runtime save interval, for a monotonic clock
		3760	# 60 allows for the watchdog to kill the server.
		3761
		3762	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3763	and return;
		3764
		3765	# always fsync - this file is important
		3766	aio_fsync $fh
		3767	and return;
		3768
		3769	# touch it again to show we are up-to-date
		3770	aio_utime $fh, undef, undef;
		3771
		3772	close $fh
		3773	or return;
		3774
		3775	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3776	and return;
		3777
		3778	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3779
2276	}	3780	1
		3781	}
		3782
		3783	our $uuid_lock;
		3784	our $uuid_skip;
		3785
		3786	sub write_uuid_sync($) {
		3787	$uuid_skip ||= $_[0];
		3788
		3789	return if $uuid_lock;
		3790	local $uuid_lock = 1;
		3791
		3792	my $uuid = "$LOCALDIR/uuid";
		3793
		3794	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3795	or return;
		3796
		3797	my $value = uuid_seq uuid_cur;
		3798
		3799	unless ($value) {
		3800	info "cowardly refusing to write zero uuid value!\n";
		3801	return;
		3802	}
		3803
		3804	my $value = uuid_str $value + $uuid_skip;
		3805	$uuid_skip = 0;
		3806
		3807	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3808	and return;
		3809
		3810	# always fsync - this file is important
		3811	aio_fsync $fh
		3812	and return;
		3813
		3814	close $fh
		3815	or return;
		3816
		3817	aio_rename "$uuid~", $uuid
		3818	and return;
		3819
		3820	trace "uuid file written ($value).\n";
		3821
		3822	1
		3823
		3824	}
		3825
		3826	sub write_uuid($$) {
		3827	my ($skip, $sync) = @_;
		3828
		3829	$sync ? write_uuid_sync $skip
		3830	: async { write_uuid_sync $skip };
2277	}	3831	}
2278		3832
2279	sub emergency_save() {	3833	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3834	my $freeze_guard = cf::freeze_mainloop;
2281		3835
2282	warn "enter emergency perl save\n";	3836	info "emergency_perl_save: enter\n";
		3837
		3838	# this is a trade-off: we want to be very quick here, so
		3839	# save all maps without fsync, and later call a global sync
		3840	# (which in turn might be very very slow)
		3841	local $USE_FSYNC = 0;
2283		3842
2284	cf::sync_job {	3843	cf::sync_job {
		3844	cf::write_runtime_sync; # external watchdog should not bark
		3845
2285	# use a peculiar iteration method to avoid tripping on perl	3846	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3847	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3848	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3849	info "emergency_perl_save: begin player save\n";
2289	for my $login (keys %cf::PLAYER) {	3850	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3851	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3852	$pl->valid or next;
		3853	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3854	$pl->save;
2293	}	3855	}
2294	warn "end emergency player save\n";	3856	info "emergency_perl_save: end player save\n";
2295		3857
2296	warn "begin emergency map save\n";	3858	cf::write_runtime_sync; # external watchdog should not bark
		3859
		3860	info "emergency_perl_save: begin map save\n";
2297	for my $path (keys %cf::MAP) {	3861	for my $path (keys %cf::MAP) {
2298	my $map = $cf::MAP{$path} or next;	3862	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3863	$map->valid or next;
2300	$map->save;	3864	$map->save;
2301	}	3865	}
2302	warn "end emergency map save\n";	3866	info "emergency_perl_save: end map save\n";
		3867
		3868	cf::write_runtime_sync; # external watchdog should not bark
		3869
		3870	info "emergency_perl_save: begin database checkpoint\n";
		3871	BDB::db_env_txn_checkpoint $DB_ENV;
		3872	info "emergency_perl_save: end database checkpoint\n";
		3873
		3874	info "emergency_perl_save: begin write uuid\n";
		3875	write_uuid_sync 1;
		3876	info "emergency_perl_save: end write uuid\n";
		3877
		3878	cf::write_runtime_sync; # external watchdog should not bark
		3879
		3880	trace "emergency_perl_save: syncing database to disk";
		3881	BDB::db_env_txn_checkpoint $DB_ENV;
		3882
		3883	info "emergency_perl_save: starting sync\n";
		3884	IO::AIO::aio_sync sub {
		3885	info "emergency_perl_save: finished sync\n";
		3886	};
		3887
		3888	cf::write_runtime_sync; # external watchdog should not bark
		3889
		3890	trace "emergency_perl_save: flushing outstanding aio requests";
		3891	while (IO::AIO::nreqs || BDB::nreqs) {
		3892	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3893	}
		3894
		3895	cf::write_runtime_sync; # external watchdog should not bark
2303	};	3896	};
2304		3897
2305	warn "leave emergency perl save\n";	3898	info "emergency_perl_save: leave\n";
2306	}	3899	}
2307		3900
		3901	sub post_cleanup {
		3902	my ($make_core) = @_;
		3903
		3904	IO::AIO::flush;
		3905
		3906	error Carp::longmess "post_cleanup backtrace"
		3907	if $make_core;
		3908
		3909	my $fh = pidfile;
		3910	unlink $PIDFILE if <$fh> == $$;
		3911	}
		3912
		3913	# a safer delete_package, copied from Symbol
		3914	sub clear_package($) {
		3915	my $pkg = shift;
		3916
		3917	# expand to full symbol table name if needed
		3918	unless ($pkg =~ /^main::.*::$/) {
		3919	$pkg = "main$pkg" if $pkg =~ /^::/;
		3920	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3921	$pkg .= '::' unless $pkg =~ /::$/;
		3922	}
		3923
		3924	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3925	my $stem_symtab = *{$stem}{HASH};
		3926
		3927	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3928	or return;
		3929
		3930	# clear all symbols
		3931	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3932	for my $name (keys %$leaf_symtab) {
		3933	_gv_clear *{"$pkg$name"};
		3934	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3935	}
		3936	}
		3937
2308	sub reload() {	3938	sub do_reload_perl() {
2309	# can/must only be called in main	3939	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3940	unless (in_main) {
2311	warn "can only reload from main coroutine\n";	3941	error "can only reload from main coroutine";
2312	return;	3942	return;
2313	}	3943	}
2314		3944
2315	warn "reloading...";	3945	return if $RELOAD++;
2316		3946
2317	warn "freezing server";	3947	my $t1 = AE::time;
2318	my $guard = freeze_mainloop;	3948
		3949	while ($RELOAD) {
		3950	cf::get_slot 0.1, -1, "reload_perl";
		3951	info "perl_reload: reloading...";
		3952
		3953	trace "perl_reload: entering sync_job";
		3954
		3955	cf::sync_job {
2319	cf::emergency_save;	3956	#cf::emergency_save;
2320		3957
2321	warn "sync database to disk";	3958	trace "perl_reload: cancelling all extension coros";
2322	cf::db_sync;
2323	IO::AIO::flush;
2324
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved
2327
2328	warn "cancel all watchers";
2329	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}
2332
2333	warn "cancel all extension coros";
2334	$_->cancel for values %EXT_CORO;	3959	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3960	%EXT_CORO = ();
2336		3961
2337	warn "remove commands";	3962	trace "perl_reload: removing commands";
2338	%COMMAND = ();	3963	%COMMAND = ();
2339		3964
2340	warn "remove ext commands";	3965	trace "perl_reload: removing ext/exti commands";
2341	%EXTCMD = ();	3966	%EXTCMD = ();
		3967	%EXTICMD = ();
2342		3968
2343	warn "unload/nuke all extensions";	3969	trace "perl_reload: unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	3970	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	3971	trace "... unloading $pkg";
2346		3972
2347	if (my $cb = $pkg->can ("unload")) {	3973	if (my $cb = $pkg->can ("unload")) {
2348	eval {	3974	eval {
2349	$cb->($pkg);	3975	$cb->($pkg);
2350	1	3976	1
2351	} or warn "$pkg unloaded, but with errors: $@";	3977	} or error "$pkg unloaded, but with errors: $@";
		3978	}
		3979
		3980	trace "... clearing $pkg";
		3981	clear_package $pkg;
2352	}	3982	}
2353		3983
2354	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;
2356	}
2357
2358	warn "unload all perl modules loaded from $LIBDIR";	3984	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	3985	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3986	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		3987
2362	warn "removing <$k>";	3988	trace "... unloading $k";
2363	delete $INC{$k};	3989	delete $INC{$k};
2364		3990
2365	$k =~ s/\.pm$//;	3991	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	3992	$k =~ s/\//::/g;
2367		3993
2368	if (my $cb = $k->can ("unload_module")) {	3994	if (my $cb = $k->can ("unload_module")) {
2369	$cb->();	3995	$cb->();
		3996	}
		3997
		3998	clear_package $k;
2370	}	3999	}
2371		4000
2372	Symbol::delete_package $k;
2373	}
2374
2375	warn "get rid of safe::, as good as possible";	4001	trace "perl_reload: getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	4002	clear_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4003	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		4004
2379	warn "unload cf.pm \"a bit\"";	4005	trace "perl_reload: unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	4006	delete $INC{"cf.pm"};
		4007	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2381		4008
2382	# don't, removes xs symbols, too,	4009	# don't, removes xs symbols, too,
2383	# and global variables created in xs	4010	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	4011	#clear_package __PACKAGE__;
2385		4012
2386	warn "reloading cf.pm";	4013	info "perl_reload: unload completed, starting to reload now";
		4014
		4015	trace "perl_reload: reloading cf.pm";
2387	require cf;	4016	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4017	cf::_connect_to_perl_1;
2389		4018
2390	warn "load config and database again";	4019	trace "perl_reload: loading config and database again";
2391	cf::cfg_load;	4020	cf::reload_config;
2392	cf::db_load;
2393		4021
2394	warn "load extensions";	4022	trace "perl_reload: loading extensions";
2395	cf::load_extensions;	4023	cf::load_extensions;
2396		4024
		4025	if ($REATTACH_ON_RELOAD) {
2397	warn "reattach attachments to objects/players";	4026	trace "perl_reload: reattaching attachments to objects/players";
2398	_global_reattach;	4027	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	4028	trace "perl_reload: reattaching attachments to maps";
2400	reattach $_ for values %MAP;	4029	reattach $_ for values %MAP;
		4030	trace "perl_reload: reattaching attachments to players";
		4031	reattach $_ for values %PLAYER;
		4032	}
		4033
		4034	cf::_post_init 1;
		4035
		4036	trace "perl_reload: leaving sync_job";
		4037
		4038	1
		4039	} or do {
		4040	error $@;
		4041	cf::cleanup "perl_reload: error, exiting.";
		4042	};
		4043
		4044	--$RELOAD;
		4045	}
		4046
		4047	$t1 = AE::time - $t1;
		4048	info "perl_reload: completed in ${t1}s\n";
		4049	};
		4050
		4051	our $RELOAD_WATCHER; # used only during reload
		4052
		4053	sub reload_perl() {
		4054	# doing reload synchronously and two reloads happen back-to-back,
		4055	# coro crashes during coro_state_free->destroy here.
		4056
		4057	$RELOAD_WATCHER ||= cf::async {
		4058	Coro::AIO::aio_wait cache_extensions;
		4059
		4060	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4061	do_reload_perl;
		4062	undef $RELOAD_WATCHER;
		4063	};
2401	};	4064	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408
2409	warn "reloaded";
2410	};
2411
2412	#############################################################################
2413
2414	unless ($LINK_MAP) {
2415	$LINK_MAP = cf::map::new;
2416
2417	$LINK_MAP->width (41);
2418	$LINK_MAP->height (41);
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	4065	}
2454		4066
2455	register_command "reload" => sub {	4067	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	4068	my ($who, $arg) = @_;
2457		4069
2458	if ($who->flag (FLAG_WIZ)) {	4070	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	4071	$who->message ("reloading server.");
		4072	async {
		4073	$Coro::current->{desc} = "perl_reload";
		4074	reload_perl;
		4075	};
2462	}	4076	}
2463	};	4077	};
2464		4078
2465	unshift @INC, $LIBDIR;	4079	#############################################################################
2466		4080
2467	$TICK_WATCHER = Event->timer (	4081	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		4082
2475	cf::server_tick; # one server iteration	4083	sub wait_for_tick() {
2476	$RUNTIME += $TICK;	4084	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2477	$NEXT_TICK += $TICK;
2478		4085
		4086	$WAIT_FOR_TICK->wait;
		4087	}
		4088
		4089	sub wait_for_tick_begin() {
		4090	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4091
		4092	my $signal = new Coro::Signal;
		4093	push @WAIT_FOR_TICK_BEGIN, $signal;
		4094	$signal->wait;
		4095	}
		4096
		4097	sub tick {
		4098	if ($Coro::current != $Coro::main) {
		4099	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4100	unless ++$bug_warning > 10;
		4101	return;
		4102	}
		4103
		4104	cf::one_tick; # one server iteration
		4105
		4106	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4107
		4108	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4109	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4110	Coro::async_pool {
		4111	$Coro::current->{desc} = "runtime saver";
		4112	write_runtime_sync
		4113	or error "ERROR: unable to write runtime file: $!";
		4114	};
		4115	}
		4116
		4117	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4118	$sig->send;
		4119	}
2479	$WAIT_FOR_TICK->broadcast;	4120	$WAIT_FOR_TICK->broadcast;
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2481		4121
2482	# if we are delayed by four ticks or more, skip them all	4122	$LOAD = ($NOW - $TICK_START) / $TICK;
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2484		4124
2485	$TICK_WATCHER->at ($NEXT_TICK);	4125	if (0) {
2486	$TICK_WATCHER->start;	4126	if ($NEXT_TICK) {
		4127	my $jitter = $TICK_START - $NEXT_TICK;
		4128	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4129	debug "jitter $JITTER\n";#d#
		4130	}
2487	},	4131	}
2488	);	4132	}
2489		4133
		4134	{
		4135	# configure BDB
		4136
		4137	BDB::min_parallel 16;
		4138	BDB::max_poll_reqs $TICK * 0.1;
		4139	#$AnyEvent::BDB::WATCHER->priority (1);
		4140
		4141	unless ($DB_ENV) {
		4142	$DB_ENV = BDB::db_env_create;
		4143	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4144	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4145	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4146	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4147	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4148
		4149	cf::sync_job {
		4150	eval {
		4151	BDB::db_env_open
		4152	$DB_ENV,
		4153	$BDBDIR,
		4154	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4155	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4156	0666;
		4157
		4158	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4159	};
		4160
		4161	cf::cleanup "db_env_open(db): $@" if $@;
		4162	};
		4163	}
		4164
		4165	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4166	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4167	};
		4168	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4169	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4170	};
		4171	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4172	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4173	};
		4174	}
		4175
		4176	{
		4177	# configure IO::AIO
		4178
		4179	IO::AIO::min_parallel 8;
2490	IO::AIO::max_poll_time $TICK * 0.2;	4180	IO::AIO::max_poll_time $TICK * 0.1;
		4181	undef $AnyEvent::AIO::WATCHER;
		4182	}
2491		4183
2492	Event->io (	4184	our $_log_backtrace;
2493	fd => IO::AIO::poll_fileno,	4185	our $_log_backtrace_last;
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499		4186
2500	Event->timer (	4187	sub _log_backtrace {
2501	data => WF_AUTOCANCEL,	4188	my ($msg, @addr) = @_;
2502	after => 0,	4189
2503	interval => 10,	4190	$msg =~ s/\n$//;
2504	cb => sub {	4191
2505	(Coro::unblock_sub {	4192	if ($_log_backtrace_last eq $msg) {
2506	write_runtime	4193	LOG llevInfo, "[ABT] $msg\n";
2507	or warn "ERROR: unable to write runtime file: $!";	4194	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4195	# limit the # of concurrent backtraces
		4196	} elsif ($_log_backtrace < 2) {
		4197	$_log_backtrace_last = $msg;
		4198	++$_log_backtrace;
		4199	my $perl_bt = Carp::longmess $msg;
		4200	async {
		4201	$Coro::current->{desc} = "abt $msg";
		4202
		4203	my @bt = fork_call {
		4204	@addr = map { sprintf "%x", $_ } @addr;
		4205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4207	or die "addr2line: $!";
		4208
		4209	my @funcs;
		4210	my @res = <$fh>;
		4211	chomp for @res;
		4212	while (@res) {
		4213	my ($func, $line) = splice @res, 0, 2, ();
		4214	push @funcs, "[$func] $line";
		4215	}
		4216
		4217	@funcs
		4218	};
		4219
		4220	LOG llevInfo, "[ABT] $perl_bt\n";
		4221	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4222	LOG llevInfo, "[ABT] $_\n" for @bt;
		4223	--$_log_backtrace;
2508	})->();	4224	};
		4225	} else {
		4226	LOG llevInfo, "[ABT] $msg\n";
		4227	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2509	},	4228	}
2510	);	4229	}
		4230
		4231	# load additional modules
		4232	require "cf/$_.pm" for @EXTRA_MODULES;
		4233	cf::_connect_to_perl_2;
2511		4234
2512	END { cf::emergency_save }	4235	END { cf::emergency_save }
2513		4236
2514	1	4237	1
2515		4238

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