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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.572 by root, Sun May 8 11:44:43 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		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	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542
543	#############################################################################
544
545	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
546		895
547	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
548	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")
549	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
550		899
551	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>
552	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
553	crossfire+).	902	Deliantra).
554		903
555	=over 4	904	=over 4
556		905
557	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
558		907
…		…
602	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
603		952
604	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
605	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
606		955
607	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
608	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.
609		958
610	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
611		960
612	=over 4	961	=over 4
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	1022	our @CB_MAP = ();
674		1023
675	my %attachment;	1024	my %attachment;
676		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
677	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
679		1034
680	use sort 'stable';	1035	use sort 'stable';
681		1036
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
716		1071
717	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		1076
722	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
724		1079
725	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
730		1085
731	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
732	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
733		1088
734	} elsif (ref $type) {	1089	} elsif (ref $type) {
735	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
736		1091
737	} else {	1092	} else {
738	shift @arg;	1093	shift @arg;
739	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
740	}	1095	}
741	}	1096	}
742	}	1097	}
743		1098
744	sub _object_attach {	1099	sub _object_attach {
…		…
754	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
755	}	1110	}
756		1111
757	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
758	} else {	1113	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
760	}	1115	}
761		1116
762	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
763	}	1118	}
764		1119
…		…
766	if (ref $_[0]) {	1121	if (ref $_[0]) {
767	_object_attach @_;	1122	_object_attach @_;
768	} else {	1123	} else {
769	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
770	}	1125	}
		1126	_recalc_want;
771	};	1127	};
772		1128
773	# all those should be optimised	1129	# all those should be optimised
774	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
779	reattach ($obj);	1135	reattach ($obj);
780	} else {	1136	} else {
781	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
782	}	1138	}
		1139	_recalc_want;
783	};	1140	};
784		1141
785	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
787		1144
…		…
802	";	1159	";
803	die if $@;	1160	die if $@;
804	}	1161	}
805		1162
806	our $override;	1163	our $override;
807	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?
808		1165
809	sub override {	1166	sub override {
810	$override = 1;	1167	$override = 1;
811	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
812	}	1169	}
813		1170
814	sub do_invoke {	1171	sub do_invoke {
815	my $event = shift;	1172	my $event = shift;
816	my $callbacks = shift;	1173	my $callbacks = shift;
817		1174
818	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
819		1176
820	local $override;	1177	local $override;
821		1178
822	for (@$callbacks) {	1179	for (@$callbacks) {
823	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
824		1181
825	if ($@) {	1182	if ($@) {
826	warn "$@";
827	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
828	override;	1184	override;
829	}	1185	}
830		1186
831	return 1 if $override;	1187	return 1 if $override;
832	}	1188	}
833		1189
834	0	1190	0
835	}	1191	}
836		1192
837	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
838		1194
839	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
840		1196
841	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
842		1198
843	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
844	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
845	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		1202
847	=back	1203	=back
848		1204
849	=cut	1205	=cut
850		1206
851	#############################################################################	1207	#############################################################################
852	# 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	}
853		1251
854	sub reattach {	1252	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
856	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
857		1258
858	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
859		1260
860	@$registry = ();	1261	@$registry = ();
861		1262
…		…
866	for (@$attach) {	1267	for (@$attach) {
867	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
868	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
869	}	1270	}
870	} else {	1271	} else {
871	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
872	}	1273	}
873	}	1274	}
874	}	1275	}
875		1276
876	cf::attachable->attach (	1277	cf::attachable->attach (
877	prio => -1000000,	1278	prio => -1000000,
878	on_instantiate => sub {	1279	on_instantiate => sub {
879	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
880		1281
881	$data = from_json $data;	1282	$data = decode_json $data;
882		1283
883	for (@$data) {	1284	for (@$data) {
884	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
885		1286
886	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
902	sub object_freezer_save {	1303	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
904		1305
905	sync_job {	1306	sync_job {
906	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
909		1312
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
912	aio_write $fh, 0, (length $$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;
913	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
914	close $fh;	1320	aio_close $fh;
915		1321
916	if (@$objs) {	1322	if (@$objs) {
917	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) {
918	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
920	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;
921	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
922	close $fh;	1331	aio_close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
924	}	1333	}
925	} else {	1334	} else {
926	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
927	}	1336	}
928		1337
929	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
930	} else {	1342	} else {
931	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
932	}	1344	}
933	} else {	1345	} else {
934	aio_unlink $filename;	1346	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
936	}	1348	}
937	}	1349	};
938	}	1350	}
939		1351
940	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
942		1354
…		…
954	or return;	1366	or return;
955		1367
956	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
958	or return;	1370	or return;
		1371
959	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
960	}	1374	}
961		1375
		1376	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
964	return ($data, $av);	1381	($data, $av)
965	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
966		1389
967	#############################################################################	1390	#############################################################################
968	# command handling &c	1391	# command handling &c
969		1392
970	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1407	}
985		1408
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1410
988	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.
989		1416
990	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
991	called.	1418	called.
992		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
993	=cut	1431	=cut
994		1432
995	sub register_extcmd {	1433	sub register_extcmd {
996	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
997		1435
998	$EXTCMD{$name} = $cb;	1436	$EXTCMD{$name} = $cb;
999	}	1437	}
1000		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
		1446
1001	cf::player->attach (	1447	cf::player->attach (
1002	on_command => sub {	1448	on_unknown_command => sub {
1003	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
1004		1450
1005	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
1006	or return;	1452	or return;
1007		1453
…		…
1012	cf::override;	1458	cf::override;
1013	},	1459	},
1014	on_extcmd => sub {	1460	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
1016		1462
1017	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1464
1019	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) =
		1467	"ARRAY" eq ref $msg
		1468	? @$msg
		1469	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1470
		1471	my @reply;
		1472
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1473	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1474	@reply = $cb->($pl, @payload);
1022	$pl->ext_reply ($msg->{msgid}, %reply);
1023	}
1024	}	1475	}
		1476
		1477	$pl->ext_reply ($reply, @reply)
		1478	if $reply;
		1479
1025	} else {	1480	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1481	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1482	}
1028		1483
1029	cf::override;	1484	cf::override;
1030	},	1485	},
1031	);	1486	);
1032		1487
		1488	# "readahead" all extensions
1033	sub load_extension {	1489	sub cache_extensions {
1034	my ($path) = @_;	1490	my $grp = IO::AIO::aio_group;
1035		1491
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1492	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1037	my $base = $1;	1493	for (grep /\.ext$/, @{$_[0]}) {
1038	my $pkg = $1;	1494	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1039	$pkg =~ s/[^[:word:]]/_/g;	1495	}
1040	$pkg = "ext::$pkg";	1496	};
1041		1497
1042	warn "... loading '$path' into '$pkg'\n";	1498	$grp
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}	1499	}
1059		1500
1060	sub load_extensions {	1501	sub load_extensions {
		1502	info "loading extensions...";
		1503
		1504	cf::sync_job {
		1505	my %todo;
		1506
1061	for my $ext (<$LIBDIR/*.ext>) {	1507	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1508	next unless -r $path;
1063	eval {	1509
1064	load_extension $ext;	1510	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1511	my $base = $1;
		1512	my $pkg = $1;
		1513	$pkg =~ s/[^[:word:]]/_/g;
		1514	$pkg = "ext::$pkg";
		1515
		1516	open my $fh, "<:utf8", $path
		1517	or die "$path: $!";
		1518
		1519	my $source = do { local $/; <$fh> };
		1520
		1521	my %ext = (
		1522	path => $path,
		1523	base => $base,
		1524	pkg => $pkg,
		1525	);
		1526
		1527	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1528	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1529
		1530	$ext{source} =
		1531	"package $pkg; use common::sense;\n"
		1532	. "#line 1 \"$path\"\n{\n"
		1533	. $source
		1534	. "\n};\n1";
		1535
		1536	$todo{$base} = \%ext;
		1537	}
		1538
		1539	my $pass = 0;
		1540	my %done;
		1541	while (%todo) {
		1542	my $progress;
		1543
		1544	++$pass;
		1545
		1546	ext:
		1547	while (my ($k, $v) = each %todo) {
		1548	for (split /,\s*/, $v->{meta}{depends}) {
		1549	next ext
		1550	unless exists $done{$_};
		1551	}
		1552
		1553	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1554
		1555	my $active = eval $v->{source};
		1556
		1557	if (length $@) {
		1558	error "$v->{path}: $@\n";
		1559
		1560	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1561	if exists $v->{meta}{mandatory};
		1562
		1563	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1564	delete $todo{$k};
		1565	} else {
		1566	$done{$k} = delete $todo{$k};
		1567	push @EXTS, $v->{pkg};
		1568	$progress = 1;
		1569
		1570	info "$v->{base}: extension inactive.\n"
		1571	unless $active;
		1572	}
1065	1	1573	}
1066	} or warn "$ext not loaded: $@";	1574
		1575	unless ($progress) {
		1576	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1577
		1578	while (my ($k, $v) = each %todo) {
		1579	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1580	if exists $v->{meta}{mandatory};
		1581	}
		1582
		1583	last;
		1584	}
		1585	}
1067	}	1586	};
1068	}	1587	}
1069		1588
1070	#############################################################################	1589	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1590
1073	*cf::mapsupport::on_clean = sub {	1591	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1592
1086	=head2 CORE EXTENSIONS	1593	=head2 CORE EXTENSIONS
1087		1594
1088	Functions and methods that extend core crossfire objects.	1595	Functions and methods that extend core deliantra objects.
1089		1596
1090	=cut	1597	=cut
1091		1598
1092	package cf::player;	1599	package cf::player;
1093		1600
…		…
1095		1602
1096	=head3 cf::player	1603	=head3 cf::player
1097		1604
1098	=over 4	1605	=over 4
1099		1606
		1607	=item cf::player::num_playing
		1608
		1609	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1610
		1611	=cut
		1612
		1613	sub num_playing {
		1614	scalar grep
		1615	$_->ob->map
		1616	&& !$_->hidden
		1617	&& !$_->ob->flag (cf::FLAG_WIZ),
		1618	cf::player::list
		1619	}
		1620
1100	=item cf::player::find $login	1621	=item cf::player::find $login
1101		1622
1102	Returns the given player object, loading it if necessary (might block).	1623	Returns the given player object, loading it if necessary (might block).
1103		1624
1104	=cut	1625	=cut
1105		1626
1106	sub playerdir($) {	1627	sub playerdir($) {
1107	cf::localdir	1628	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1629	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1630	}
1113		1631
1114	sub path($) {	1632	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1633	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1634
1117	(playerdir $login) . "/$login.pl"	1635	(playerdir $login) . "/playerdata"
1118	}	1636	}
1119		1637
1120	sub find_active($) {	1638	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1639	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1640	and $cf::PLAYER{$_[0]}->active
…		…
1125		1643
1126	sub exists($) {	1644	sub exists($) {
1127	my ($login) = @_;	1645	my ($login) = @_;
1128		1646
1129	$cf::PLAYER{$login}	1647	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1648	or !aio_stat path $login
1131	}	1649	}
1132		1650
1133	sub find($) {	1651	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1652	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1653	my $login = $_[0];
1136		1654
1137	my $guard = cf::lock_acquire "user_find:$login";	1655	my $guard = cf::lock_acquire "user_find:$login";
1138		1656
1139	$cf::PLAYER{$_[0]} || do {	1657	$cf::PLAYER{$_[0]} || do {
1140	my $pl = load_pl path $login	1658	# rename old playerfiles to new ones
		1659	#TODO: remove when no longer required
		1660	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1661	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1662	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1663	aio_unlink +(playerdir $login) . "/$login.pl";
		1664
		1665	my $f = new_from_file cf::object::thawer path $login
1141	or return;	1666	or return;
		1667
		1668	my $pl = cf::player::load_pl $f
		1669	or return;
		1670
		1671	local $cf::PLAYER_LOADING{$login} = $pl;
		1672	$f->resolve_delayed_derefs;
1142	$cf::PLAYER{$login} = $pl	1673	$cf::PLAYER{$login} = $pl
1143	}	1674	}
1144	}	1675	}
1145	}	1676	}
		1677
		1678	cf::player->attach (
		1679	on_load => sub {
		1680	my ($pl, $path) = @_;
		1681
		1682	# restore slots saved in save, below
		1683	my $slots = delete $pl->{_slots};
		1684
		1685	$pl->ob->current_weapon ($slots->[0]);
		1686	$pl->combat_ob ($slots->[1]);
		1687	$pl->ranged_ob ($slots->[2]);
		1688	},
		1689	);
1146		1690
1147	sub save($) {	1691	sub save($) {
1148	my ($pl) = @_;	1692	my ($pl) = @_;
1149		1693
1150	return if $pl->{deny_save};	1694	return if $pl->{deny_save};
…		…
1155	return if $pl->{deny_save};	1699	return if $pl->{deny_save};
1156		1700
1157	aio_mkdir playerdir $pl, 0770;	1701	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1702	$pl->{last_save} = $cf::RUNTIME;
1159		1703
		1704	cf::get_slot 0.01;
		1705
		1706	# save slots, to be restored later
		1707	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1708
1160	$pl->save_pl ($path);	1709	$pl->save_pl ($path);
1161	Coro::cede;	1710	cf::cede_to_tick;
1162	}	1711	}
1163		1712
1164	sub new($) {	1713	sub new($) {
1165	my ($login) = @_;	1714	my ($login) = @_;
1166		1715
…		…
1172	$cf::PLAYER{$login} = $self;	1721	$cf::PLAYER{$login} = $self;
1173		1722
1174	$self	1723	$self
1175	}	1724	}
1176		1725
		1726	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1727
		1728	=cut
		1729
		1730	sub send_msg {
		1731	my $ns = shift->ns
		1732	or return;
		1733	$ns->send_msg (@_);
		1734	}
		1735
1177	=item $pl->quit_character	1736	=item $pl->quit_character
1178		1737
1179	Nukes the player without looking back. If logged in, the connection will	1738	Nukes the player without looking back. If logged in, the connection will
1180	be destroyed. May block for a long time.	1739	be destroyed. May block for a long time.
1181		1740
1182	=cut	1741	=cut
1183		1742
1184	sub quit_character {	1743	sub quit_character {
1185	my ($pl) = @_;	1744	my ($pl) = @_;
1186		1745
		1746	my $name = $pl->ob->name;
		1747
1187	$pl->{deny_save} = 1;	1748	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1749	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1189		1750
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1751	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1191	$pl->deactivate;	1752	$pl->deactivate;
		1753
		1754	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1192	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1755	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1756	ext::highscore::check ($pl->ob);
		1757
1193	$pl->ns->destroy if $pl->ns;	1758	$pl->ns->destroy if $pl->ns;
1194		1759
1195	my $path = playerdir $pl;	1760	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1761	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1762	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1763	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1764	$pl->destroy;
		1765
		1766	my $prefix = qr<^~\Q$name\E/>;
		1767
		1768	# nuke player maps
		1769	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1770
1200	IO::AIO::aio_rmtree $temp;	1771	IO::AIO::aio_rmtree $temp;
		1772	}
		1773
		1774	=item $pl->kick
		1775
		1776	Kicks a player out of the game. This destroys the connection.
		1777
		1778	=cut
		1779
		1780	sub kick {
		1781	my ($pl, $kicker) = @_;
		1782
		1783	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1784	$pl->killer ("kicked");
		1785	$pl->ns->destroy;
1201	}	1786	}
1202		1787
1203	=item cf::player::list_logins	1788	=item cf::player::list_logins
1204		1789
1205	Returns am arrayref of all valid playernames in the system, can take a	1790	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1791	while and may block, so not sync_job-capable, ever.
1207		1792
1208	=cut	1793	=cut
1209		1794
1210	sub list_logins {	1795	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1796	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1797	or return [];
1213		1798
1214	my @logins;	1799	my @logins;
1215		1800
1216	for my $login (@$dirs) {	1801	for my $login (@$dirs) {
		1802	my $path = path $login;
		1803
		1804	# a .pst is a dead give-away for a valid player
		1805	# if no pst file found, open and chekc for blocked users
		1806	if (aio_stat "$path.pst") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1807	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1808	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1809	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1810	}
1220		1811
1221	utf8::decode $login;	1812	utf8::decode $login;
1222	push @logins, $login;	1813	push @logins, $login;
1223	}	1814	}
1224		1815
1225	\@logins	1816	\@logins
1226	}	1817	}
1227		1818
1228	=item $player->maps	1819	=item $player->maps
1229		1820
		1821	=item cf::player::maps $login
		1822
1230	Returns an arrayref of cf::path's of all maps that are private for this	1823	Returns an arrayref of map paths that are private for this
1231	player. May block.	1824	player. May block.
1232		1825
1233	=cut	1826	=cut
1234		1827
1235	sub maps($) {	1828	sub maps($) {
1236	my ($pl) = @_;	1829	my ($pl) = @_;
		1830
		1831	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1832
1238	my $files = aio_readdir playerdir $pl	1833	my $files = aio_readdir playerdir $pl
1239	or return;	1834	or return;
1240		1835
1241	my @paths;	1836	my @paths;
…		…
1243	for (@$files) {	1838	for (@$files) {
1244	utf8::decode $_;	1839	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1840	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1841	next unless /^$PATH_SEP/o;
1247		1842
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1843	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1844	}
1250		1845
1251	\@paths	1846	\@paths
1252	}	1847	}
1253		1848
		1849	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1850
		1851	Expand deliantra pod fragments into protocol xml.
		1852
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1853	=item $player->ext_reply ($msgid, @msg)
1255		1854
1256	Sends an ext reply to the player.	1855	Sends an ext reply to the player.
1257		1856
1258	=cut	1857	=cut
1259		1858
1260	sub ext_reply($$$%) {	1859	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1860	my ($self, $id, @msg) = @_;
1262		1861
1263	$msg{msgid} = $id;	1862	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1863	}
1267		1864
1268	package cf;	1865	=item $player->ext_msg ($type, @msg)
		1866
		1867	Sends an ext event to the client.
		1868
		1869	=cut
		1870
		1871	sub ext_msg($$@) {
		1872	my ($self, $type, @msg) = @_;
		1873
		1874	$self->ns->ext_msg ($type, @msg);
		1875	}
		1876
		1877	=head3 cf::region
		1878
		1879	=over 4
		1880
		1881	=cut
		1882
		1883	package cf::region;
		1884
		1885	=item cf::region::find_by_path $path
		1886
		1887	Tries to decuce the likely region for a map knowing only its path.
		1888
		1889	=cut
		1890
		1891	sub find_by_path($) {
		1892	my ($path) = @_;
		1893
		1894	$path =~ s/^~[^\/]*//; # skip ~login
		1895
		1896	my ($match, $specificity);
		1897
		1898	for my $region (list) {
		1899	if ($region->{match} && $path =~ $region->{match}) {
		1900	($match, $specificity) = ($region, $region->specificity)
		1901	if $region->specificity > $specificity;
		1902	}
		1903	}
		1904
		1905	$match
		1906	}
1269		1907
1270	=back	1908	=back
1271
1272		1909
1273	=head3 cf::map	1910	=head3 cf::map
1274		1911
1275	=over 4	1912	=over 4
1276		1913
…		…
1279	package cf::map;	1916	package cf::map;
1280		1917
1281	use Fcntl;	1918	use Fcntl;
1282	use Coro::AIO;	1919	use Coro::AIO;
1283		1920
		1921	use overload
		1922	'""' => \&as_string,
		1923	fallback => 1;
		1924
1284	our $MAX_RESET = 3600;	1925	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1926	our $DEFAULT_RESET = 3000;
1286		1927
1287	sub generate_random_map {	1928	sub generate_random_map {
		1929	my ($self, $rmp) = @_;
		1930
		1931	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1932
		1933	$self->_create_random_map ($rmp);
		1934	}
		1935
		1936	=item cf::map->register ($regex, $prio)
		1937
		1938	Register a handler for the map path matching the given regex at the
		1939	givne priority (higher is better, built-in handlers have priority 0, the
		1940	default).
		1941
		1942	=cut
		1943
		1944	sub register {
		1945	my (undef, $regex, $prio) = @_;
		1946	my $pkg = caller;
		1947
		1948	push @{"$pkg\::ISA"}, __PACKAGE__;
		1949
		1950	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1951	}
		1952
		1953	# also paths starting with '/'
		1954	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1955
		1956	sub thawer_merge {
		1957	my ($self, $merge) = @_;
		1958
		1959	# we have to keep some variables in memory intact
		1960	local $self->{path};
		1961	local $self->{load_path};
		1962
		1963	$self->SUPER::thawer_merge ($merge);
		1964	}
		1965
		1966	sub normalise {
1288	my ($path, $rmp) = @_;	1967	my ($path, $base) = @_;
1289		1968
1290	# mit "rum" bekleckern, nicht	1969	$path = "$path"; # make sure it's a string
1291	cf::map::_create_random_map (	1970
		1971	$path =~ s/\.map$//;
		1972
		1973	# map plan:
		1974	#
		1975	# /! non-realised random map exit (special hack!)
		1976	# {... are special paths that are not being touched
		1977	# ?xxx/... are special absolute paths
		1978	# ?random/... random maps
		1979	# /... normal maps
		1980	# ~user/... per-player map of a specific user
		1981
		1982	$path =~ s/$PATH_SEP/\//go;
		1983
		1984	# treat it as relative path if it starts with
		1985	# something that looks reasonable
		1986	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1987	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1988
		1989	$base =~ s{[^/]+/?$}{};
		1990	$path = "$base/$path";
		1991	}
		1992
		1993	for ($path) {
		1994	redo if s{/\.?/}{/};
		1995	redo if s{/[^/]+/\.\./}{/};
		1996	}
		1997
1292	$path,	1998	$path
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1999	}
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	2000
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	2001	sub new_from_path {
1296	$rmp->{exit_on_final_map},	2002	my (undef, $path, $base) = @_;
1297	$rmp->{xsize}, $rmp->{ysize},	2003
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	2004	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	2005
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	2006	$path = normalise $path, $base;
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	2007
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	2008	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	2009	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2010	my $self = bless cf::map::new, $pkg;
		2011	$self->{path} = $path; $self->path ($path);
		2012	$self->init; # pass $1 etc.
		2013	return $self;
		2014	}
		2015	}
		2016
		2017	Carp::cluck "unable to resolve path '$path' (base '$base')";
1304	)	2018	()
1305	}	2019	}
1306		2020
1307	# and all this just because we cannot iterate over	2021	# may re-bless or do other evil things
1308	# all maps in C++...	2022	sub init {
1309	sub change_all_map_light {
1310	my ($change) = @_;	2023	my ($self) = @_;
1311		2024
1312	$_->change_map_light ($change)	2025	$self
1313	for grep $_->outdoor, values %cf::MAP;
1314	}	2026	}
1315		2027
		2028	sub as_string {
		2029	my ($self) = @_;
		2030
		2031	"$self->{path}"
		2032	}
		2033
		2034	# the displayed name, this is a one way mapping
		2035	sub visible_name {
		2036	&as_string
		2037	}
		2038
		2039	# the original (read-only) location
		2040	sub load_path {
		2041	my ($self) = @_;
		2042
		2043	"$MAPDIR/$self->{path}.map"
		2044	}
		2045
		2046	# the temporary/swap location
		2047	sub save_path {
		2048	my ($self) = @_;
		2049
		2050	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2051	"$TMPDIR/$path.map"
		2052	}
		2053
		2054	# the unique path, undef == no special unique path
		2055	sub uniq_path {
		2056	my ($self) = @_;
		2057
		2058	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2059	"$UNIQUEDIR/$path"
		2060	}
		2061
		2062	sub decay_objects {
		2063	my ($self) = @_;
		2064
		2065	return if $self->{deny_reset};
		2066
		2067	$self->do_decay_objects;
		2068	}
		2069
		2070	sub unlink_save {
		2071	my ($self) = @_;
		2072
		2073	utf8::encode (my $save = $self->save_path);
		2074	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2075	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2076	}
		2077
1316	sub load_map_header($) {	2078	sub load_header_from($) {
1317	my ($path) = @_;	2079	my ($self, $path) = @_;
1318		2080
1319	utf8::encode $path;	2081	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	2082	my $f = new_from_file cf::object::thawer $path
1321	or return;	2083	or return;
1322		2084
1323	my $map = cf::map::new	2085	$self->_load_header ($f)
1324	or return;	2086	or return;
1325		2087
1326	# for better error messages only, will be overwritten later	2088	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	2089	$f->resolve_delayed_derefs;
1328		2090
1329	$map->load_header ($path)	2091	$self->{load_path} = $path;
		2092
		2093	1
		2094	}
		2095
		2096	# used to laod the header of an original map
		2097	sub load_header_orig {
		2098	my ($self) = @_;
		2099
		2100	$self->load_header_from ($self->load_path)
		2101	}
		2102
		2103	# used to laod the header of an instantiated map
		2104	sub load_header_temp {
		2105	my ($self) = @_;
		2106
		2107	$self->load_header_from ($self->save_path)
		2108	}
		2109
		2110	# called after loading the header from an instantiated map
		2111	sub prepare_temp {
		2112	my ($self) = @_;
		2113
		2114	$self->last_access ((delete $self->{last_access})
		2115	|| $cf::RUNTIME); #d#
		2116	# safety
		2117	$self->{instantiate_time} = $cf::RUNTIME
		2118	if $self->{instantiate_time} > $cf::RUNTIME;
		2119	}
		2120
		2121	# called after loading the header from an original map
		2122	sub prepare_orig {
		2123	my ($self) = @_;
		2124
		2125	$self->{load_original} = 1;
		2126	$self->{instantiate_time} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
		2128	$self->instantiate;
		2129	}
		2130
		2131	sub load_header {
		2132	my ($self) = @_;
		2133
		2134	if ($self->load_header_temp) {
		2135	$self->prepare_temp;
		2136	} else {
		2137	$self->load_header_orig
1330	or return;	2138	or return;
		2139	$self->prepare_orig;
		2140	}
1331		2141
1332	$map->{load_path} = $path;	2142	$self->{deny_reset} = 1
		2143	if $self->no_reset;
1333		2144
1334	$map	2145	$self->default_region (cf::region::find_by_path $self->{path})
		2146	unless $self->default_region;
		2147
		2148	1
1335	}	2149	}
1336		2150
1337	sub find;	2151	sub find;
1338	sub find {	2152	sub find {
1339	my ($path, $origin) = @_;	2153	my ($path, $origin) = @_;
1340		2154
1341	#warn "find<$path,$origin>\n";#d#	2155	cf::cede_to_tick;
1342		2156
1343	$path = new cf::path $path, $origin && $origin->path;	2157	$path = normalise $path, $origin;
1344	my $key = $path->as_string;
1345		2158
1346	cf::lock_wait "map_find:$key";	2159	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1347
1348	$cf::MAP{$key} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	2160	my $guard2 = cf::lock_acquire "map_find:$path";
1350		2161
1351	# do it the slow way	2162	$cf::MAP{$path} || do {
1352	my $map = $path->load_temp;	2163	my $map = new_from_path cf::map $path
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	2164	or return;
1365		2165
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	2166	$map->{last_save} = $cf::RUNTIME;
1378		2167
1379	Coro::cede;	2168	$map->load_header
		2169	or return;
1380		2170
1381	if ($map->should_reset) {	2171	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2172	# doing this can freeze the server in a sync job, obviously
		2173	#$cf::WAIT_FOR_TICK->wait;
		2174	undef $guard2;
		2175	undef $guard1;
1382	$map->reset;	2176	$map->reset;
1383	undef $guard;
1384	$map = find $path	2177	return find $path;
1385	or return;
1386	}	2178	}
1387		2179
1388	$cf::MAP{$key} = $map	2180	$cf::MAP{$path} = $map
1389	}	2181	}
1390	}	2182	}
		2183
		2184	sub pre_load { }
		2185	#sub post_load { } # XS
1391		2186
1392	sub load {	2187	sub load {
1393	my ($self) = @_;	2188	my ($self) = @_;
1394		2189
		2190	local $self->{deny_reset} = 1; # loading can take a long time
		2191
1395	my $path = $self->{path};	2192	my $path = $self->{path};
		2193
		2194	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2195	my $guard = cf::lock_acquire "map_data:$path";
1397		2196
1398	return if $self->in_memory != cf::MAP_SWAPPED;	2197	return unless $self->valid;
		2198	return unless $self->state == cf::MAP_SWAPPED;
1399		2199
1400	$self->in_memory (cf::MAP_LOADING);
1401
1402	$self->alloc;	2200	$self->alloc;
1403	$self->load_objects ($self->{load_path}, 1)	2201
		2202	$self->pre_load;
		2203	cf::cede_to_tick;
		2204
		2205	if (exists $self->{load_path}) {
		2206	my $f = new_from_file cf::object::thawer $self->{load_path};
		2207	$f->skip_block;
		2208	$self->_load_objects ($f)
1404	or return;	2209	or return;
1405		2210
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2211	$self->post_load_original
1407	if delete $self->{load_original};	2212	if delete $self->{load_original};
1408		2213
1409	if (my $uniq = $path->uniq_path) {	2214	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	2215	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	2216	unless (aio_stat $uniq) {
		2217	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	2218	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	2219	$self->_load_objects ($f);
		2220	$f->resolve_delayed_derefs;
		2221	}
		2222	}
1414	}	2223	}
1415	}
1416		2224
1417	Coro::cede;	2225	$f->resolve_delayed_derefs;
		2226	} else {
		2227	$self->post_load_original
		2228	if delete $self->{load_original};
		2229	}
1418		2230
		2231	$self->state (cf::MAP_INACTIVE);
		2232
		2233	cf::cede_to_tick;
1419	# now do the right thing for maps	2234	# now do the right thing for maps
1420	$self->link_multipart_objects;	2235	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	2236	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	2237	unless $self->difficulty;
1432	$self->activate;	2238	cf::cede_to_tick;
		2239
		2240	unless ($self->{deny_activate}) {
		2241	$self->decay_objects;
		2242	$self->fix_auto_apply;
		2243	$self->update_buttons;
		2244	$self->post_load_physics;
		2245	cf::cede_to_tick;
		2246	#$self->activate; # no longer activate maps automatically
		2247	}
		2248
		2249	$self->{last_save} = $cf::RUNTIME;
		2250	$self->last_access ($cf::RUNTIME);
		2251	}
		2252
		2253	$self->post_load;
		2254
1433	}	2255	1
		2256	}
1434		2257
1435	Coro::cede;	2258	# customize the map for a given player, i.e.
		2259	# return the _real_ map. used by e.g. per-player
		2260	# maps to change the path to ~playername/mappath
		2261	sub customise_for {
		2262	my ($self, $ob) = @_;
1436		2263
1437	$self->in_memory (cf::MAP_IN_MEMORY);	2264	return find "~" . $ob->name . "/" . $self->{path}
		2265	if $self->per_player;
		2266
		2267	# return find "?party/" . $ob->name . "/" . $self->{path}
		2268	# if $self->per_party;
		2269
		2270	$self
1438	}	2271	}
1439		2272
1440	# find and load all maps in the 3x3 area around a map	2273	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2274	sub load_neighbours {
1442	my ($map) = @_;	2275	my ($map) = @_;
1443		2276
1444	my @diag; # diagonal neighbours	2277	my @neigh; # diagonal neighbours
1445		2278
1446	for (0 .. 3) {	2279	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2280	my $neigh = $map->tile_path ($_)
1448	or next;	2281	or next;
1449	$neigh = find $neigh, $map	2282	$neigh = find $neigh, $map
1450	or next;	2283	or next;
1451	$neigh->load;	2284	$neigh->load;
1452		2285
		2286	# now find the diagonal neighbours
		2287	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2288	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2289	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2290	}
1456		2291
1457	for (@diag) {	2292	for (grep defined $_->[0], @neigh) {
		2293	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2294	my $neigh = find $path, $origin
1459	or next;	2295	or next;
1460	$neigh->load;	2296	$neigh->load;
1461	}	2297	}
1462	}	2298	}
1463		2299
1464	sub find_sync {	2300	sub find_sync {
1465	my ($path, $origin) = @_;	2301	my ($path, $origin) = @_;
1466		2302
1467	cf::sync_job { find $path, $origin }	2303	# it's a bug to call this from the main context
		2304	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2305	if $Coro::current == $Coro::main;
		2306
		2307	find $path, $origin
1468	}	2308	}
1469		2309
1470	sub do_load_sync {	2310	sub do_load_sync {
1471	my ($map) = @_;	2311	my ($map) = @_;
1472		2312
1473	cf::sync_job { $map->load };	2313	# it's a bug to call this from the main context
		2314	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2315	if $Coro::current == $Coro::main;
		2316
		2317	$map->load;
1474	}	2318	}
1475		2319
1476	our %MAP_PREFETCH;	2320	our %MAP_PREFETCH;
		2321	our $MAP_PREFETCHER = undef;
		2322
		2323	sub find_async {
		2324	my ($path, $origin, $load) = @_;
		2325
		2326	$path = normalise $path, $origin;
		2327
		2328	print "find async $path (from $origin)\n";#d#
		2329
		2330	if (my $map = $cf::MAP{$path}) {
		2331	return $map if !$load || $map->linkable;
		2332	}
		2333
		2334	$MAP_PREFETCH{$path} |= $load;
		2335
1477	our $MAP_PREFETCHER = Coro::async {	2336	$MAP_PREFETCHER ||= cf::async {
1478	while () {	2337	$Coro::current->{desc} = "map prefetcher";
		2338
1479	while (%MAP_PREFETCH) {	2339	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2340	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2341	if (my $map = find $k) {
		2342	$map->load if $v;
		2343	}
		2344
1482	my $path = delete $MAP_PREFETCH{$key};	2345	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2346	}
1488	Coro::schedule;	2347	}
		2348	undef $MAP_PREFETCHER;
1489	}	2349	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2350	$MAP_PREFETCHER->prio (6);
1504		2351
1505	()	2352	()
		2353	}
		2354
		2355	# common code, used by both ->save and ->swapout
		2356	sub _save {
		2357	my ($self) = @_;
		2358
		2359	$self->{last_save} = $cf::RUNTIME;
		2360
		2361	return unless $self->dirty;
		2362
		2363	my $save = $self->save_path; utf8::encode $save;
		2364	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2365
		2366	$self->{load_path} = $save;
		2367
		2368	return if $self->{deny_save};
		2369
		2370	local $self->{last_access} = $self->last_access;#d#
		2371
		2372	cf::async {
		2373	$Coro::current->{desc} = "map player save";
		2374	$_->contr->save for $self->players;
		2375	};
		2376
		2377	cf::get_slot 0.02;
		2378
		2379	if ($uniq) {
		2380	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2381	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2382	} else {
		2383	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2384	}
1506	}	2385	}
1507		2386
1508	sub save {	2387	sub save {
1509	my ($self) = @_;	2388	my ($self) = @_;
1510		2389
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2390	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2391
1513	$self->{last_save} = $cf::RUNTIME;	2392	$self->_save;
1514
1515	return unless $self->dirty;
1516
1517	my $save = $self->{path}->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1519
1520	$self->{load_path} = $save;
1521
1522	return if $self->{deny_save};
1523
1524	local $self->{last_access} = $self->last_access;#d#
1525
1526	cf::async {
1527	$_->contr->save for $self->players;
1528	};
1529
1530	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}
1536	}	2393	}
1537		2394
1538	sub swap_out {	2395	sub swap_out {
1539	my ($self) = @_;	2396	my ($self) = @_;
1540		2397
1541	# save first because save cedes
1542	$self->save;
1543
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2398	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2399
		2400	return if !$self->linkable;
		2401	return if $self->{deny_save};
1546	return if $self->players;	2402	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;
1548	return if $self->{deny_save};
1549		2403
		2404	# first deactivate the map and "unlink" it from the core
		2405	$self->deactivate;
		2406	$_->clear_links_to ($self) for values %cf::MAP;
		2407	$self->state (cf::MAP_SWAPPED);
		2408
		2409	# then atomically save
		2410	$self->_save;
		2411
		2412	# then free the map
1550	$self->clear;	2413	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2414	}
1553		2415
1554	sub reset_at {	2416	sub reset_at {
1555	my ($self) = @_;	2417	my ($self) = @_;
1556		2418
1557	# TODO: safety, remove and allow resettable per-player maps	2419	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2420	return 1e99 if $self->{deny_reset};
1560		2421
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2422	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2423	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2424
…		…
1568	my ($self) = @_;	2429	my ($self) = @_;
1569		2430
1570	$self->reset_at <= $cf::RUNTIME	2431	$self->reset_at <= $cf::RUNTIME
1571	}	2432	}
1572		2433
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2434	sub reset {
1587	my ($self) = @_;	2435	my ($self) = @_;
1588		2436
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2437	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2438
1591	return if $self->players;	2439	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2440
1594	warn "resetting map ", $self->path;#d#	2441	cf::trace "resetting map ", $self->path, "\n";
		2442
		2443	$self->state (cf::MAP_SWAPPED);
		2444
		2445	# need to save uniques path
		2446	unless ($self->{deny_save}) {
		2447	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2448
		2449	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2450	if $uniq;
		2451	}
1595		2452
1596	delete $cf::MAP{$self->path};	2453	delete $cf::MAP{$self->path};
1597		2454
		2455	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2456	$_->clear_links_to ($self) for values %cf::MAP;
		2457	$self->clear;
1599		2458
1600	$self->{path}->unlink_save;	2459	$self->unlink_save;
1601	$self->destroy;	2460	$self->destroy;
1602	}	2461	}
1603		2462
1604	my $nuke_counter = "aaaa";	2463	my $nuke_counter = "aaaa";
1605		2464
1606	sub nuke {	2465	sub nuke {
1607	my ($self) = @_;	2466	my ($self) = @_;
1608		2467
		2468	{
		2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2470
		2471	delete $cf::MAP{$self->path};
		2472
		2473	$self->unlink_save;
		2474
		2475	bless $self, "cf::map::wrap";
		2476	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2477	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2478	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2479	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2480
		2481	$cf::MAP{$self->path} = $self;
		2482	}
		2483
1612	$self->reset; # polite request, might not happen	2484	$self->reset; # polite request, might not happen
1613	}	2485	}
1614		2486
		2487	=item $maps = cf::map::tmp_maps
		2488
		2489	Returns an arrayref with all map paths of currently instantiated and saved
		2490	maps. May block.
		2491
		2492	=cut
		2493
		2494	sub tmp_maps() {
		2495	[
		2496	map {
		2497	utf8::decode $_;
		2498	/\.map$/
		2499	? normalise $_
		2500	: ()
		2501	} @{ aio_readdir $TMPDIR or [] }
		2502	]
		2503	}
		2504
		2505	=item $maps = cf::map::random_maps
		2506
		2507	Returns an arrayref with all map paths of currently instantiated and saved
		2508	random maps. May block.
		2509
		2510	=cut
		2511
		2512	sub random_maps() {
		2513	[
		2514	map {
		2515	utf8::decode $_;
		2516	/\.map$/
		2517	? normalise "?random/$_"
		2518	: ()
		2519	} @{ aio_readdir $RANDOMDIR or [] }
		2520	]
		2521	}
		2522
1615	=item cf::map::unique_maps	2523	=item cf::map::unique_maps
1616		2524
1617	Returns an arrayref of cf::path's of all shared maps that have	2525	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2526	instantiated unique items. May block.
1619		2527
1620	=cut	2528	=cut
1621		2529
1622	sub unique_maps() {	2530	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2531	[
1624	or return;	2532	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2533	utf8::decode $_;
1630	next if /\.pst$/;	2534	s/\.map$//; # TODO future compatibility hack
1631	next unless /^$PATH_SEP/o;	2535	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1632		2536	? ()
1633	push @paths, new cf::path $_;	2537	: normalise $_
		2538	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2539	]
1635
1636	\@paths
1637	}	2540	}
1638		2541
1639	package cf;	2542	=item cf::map::static_maps
		2543
		2544	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2545	file in the shared directory excluding F</styles> and F</editor>). May
		2546	block.
		2547
		2548	=cut
		2549
		2550	sub static_maps() {
		2551	my @dirs = "";
		2552	my @maps;
		2553
		2554	while (@dirs) {
		2555	my $dir = shift @dirs;
		2556
		2557	next if $dir eq "/styles" || $dir eq "/editor";
		2558
		2559	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2560	or return;
		2561
		2562	for (@$files) {
		2563	s/\.map$// or next;
		2564	utf8::decode $_;
		2565	push @maps, "$dir/$_";
		2566	}
		2567
		2568	push @dirs, map "$dir/$_", @$dirs;
		2569	}
		2570
		2571	\@maps
		2572	}
1640		2573
1641	=back	2574	=back
1642		2575
1643	=head3 cf::object	2576	=head3 cf::object
1644		2577
…		…
1648		2581
1649	=over 4	2582	=over 4
1650		2583
1651	=item $ob->inv_recursive	2584	=item $ob->inv_recursive
1652		2585
1653	Returns the inventory of the object _and_ their inventories, recursively.	2586	Returns the inventory of the object I<and> their inventories, recursively,
		2587	but I<not> the object itself.
1654		2588
1655	=cut	2589	=cut
1656		2590
1657	sub inv_recursive_;	2591	sub inv_recursive_;
1658	sub inv_recursive_ {	2592	sub inv_recursive_ {
…		…
1661		2595
1662	sub inv_recursive {	2596	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	2597	inv_recursive_ inv $_[0]
1664	}	2598	}
1665		2599
		2600	=item $ref = $ob->ref
		2601
		2602	Creates and returns a persistent reference to an object that can be stored as a string.
		2603
		2604	=item $ob = cf::object::deref ($refstring)
		2605
		2606	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2607	even if the object actually exists. May block.
		2608
		2609	=cut
		2610
		2611	sub deref {
		2612	my ($ref) = @_;
		2613
		2614	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2615	my ($uuid, $name) = ($1, $2);
		2616	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2617	or return;
		2618	$pl->ob->uuid eq $uuid
		2619	or return;
		2620
		2621	$pl->ob
		2622	} else {
		2623	warn "$ref: cannot resolve object reference\n";
		2624	undef
		2625	}
		2626	}
		2627
1666	package cf;	2628	package cf;
1667		2629
1668	=back	2630	=back
1669		2631
1670	=head3 cf::object::player	2632	=head3 cf::object::player
…		…
1676	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2638	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1677	can be C<undef>. Does the right thing when the player is currently in a	2639	can be C<undef>. Does the right thing when the player is currently in a
1678	dialogue with the given NPC character.	2640	dialogue with the given NPC character.
1679		2641
1680	=cut	2642	=cut
		2643
		2644	our $SAY_CHANNEL = {
		2645	id => "say",
		2646	title => "Map",
		2647	reply => "say ",
		2648	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2649	};
		2650
		2651	our $CHAT_CHANNEL = {
		2652	id => "chat",
		2653	title => "Chat",
		2654	reply => "chat ",
		2655	tooltip => "Player chat and shouts, global to the server.",
		2656	};
1681		2657
1682	# rough implementation of a future "reply" method that works	2658	# rough implementation of a future "reply" method that works
1683	# with dialog boxes.	2659	# with dialog boxes.
1684	#TODO: the first argument must go, split into a $npc->reply_to ( method	2660	#TODO: the first argument must go, split into a $npc->reply_to ( method
1685	sub cf::object::player::reply($$$;$) {	2661	sub cf::object::player::reply($$$;$) {
…		…
1687		2663
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2664	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2665
1690	if ($self->{record_replies}) {	2666	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2667	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2668
1692	} else {	2669	} else {
		2670	my $pl = $self->contr;
		2671
		2672	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2673	my $dialog = $pl->{npc_dialog};
		2674	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2675
		2676	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2677	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2678	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2679	}
1695	}	2680	}
		2681	}
		2682
		2683	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2684
		2685	=cut
		2686
		2687	sub cf::object::send_msg {
		2688	my $pl = shift->contr
		2689	or return;
		2690	$pl->send_msg (@_);
1696	}	2691	}
1697		2692
1698	=item $player_object->may ("access")	2693	=item $player_object->may ("access")
1699		2694
1700	Returns wether the given player is authorized to access resource "access"	2695	Returns wether the given player is authorized to access resource "access"
…		…
1713		2708
1714	=item $player_object->enter_link	2709	=item $player_object->enter_link
1715		2710
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2711	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2712
1718	The player should be reaosnably safe there for short amounts of time. You	2713	The player should be reasonably safe there for short amounts of time (e.g.
1719	I<MUST> call C<leave_link> as soon as possible, though.	2714	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2715	though, as the player cannot control the character while it is on the link
		2716	map.
		2717
		2718	Will never block.
1720		2719
1721	=item $player_object->leave_link ($map, $x, $y)	2720	=item $player_object->leave_link ($map, $x, $y)
1722		2721
1723	Moves the player out of the specila link map onto the given map. If the	2722	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2723	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2724	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2725	fails, to the emergency map position.
1727		2726
1728	Might block.	2727	Might block.
1729		2728
1730	=cut	2729	=cut
		2730
		2731	sub link_map {
		2732	unless ($LINK_MAP) {
		2733	$LINK_MAP = cf::map::find "{link}"
		2734	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2735	$LINK_MAP->load;
		2736	}
		2737
		2738	$LINK_MAP
		2739	}
1731		2740
1732	sub cf::object::player::enter_link {	2741	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2742	my ($self) = @_;
1734		2743
1735	$self->deactivate_recursive;	2744	$self->deactivate_recursive;
1736		2745
1737	return if $self->map == $LINK_MAP;	2746	++$self->{_link_recursion};
		2747
		2748	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2749
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2751	if $self->map && $self->map->{path} ne "{link}";
1741		2752
1742	$self->enter_map ($LINK_MAP, 20, 20);	2753	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1743	}	2754	}
1744		2755
1745	sub cf::object::player::leave_link {	2756	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2757	my ($self, $map, $x, $y) = @_;
		2758
		2759	return unless $self->contr->active;
1747		2760
1748	my $link_pos = delete $self->{_link_pos};	2761	my $link_pos = delete $self->{_link_pos};
1749		2762
1750	unless ($map) {	2763	unless ($map) {
1751	# restore original map position	2764	# restore original map position
…		…
1762	($x, $y) = (-1, -1)	2775	($x, $y) = (-1, -1)
1763	unless (defined $x) && (defined $y);	2776	unless (defined $x) && (defined $y);
1764		2777
1765	# use -1 or undef as default coordinates, not 0, 0	2778	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2779	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2780	if $x <= 0 && $y <= 0;
1768		2781
1769	$map->load;	2782	$map->load;
1770	$map->load_diag;	2783	$map->load_neighbours;
1771		2784
1772	return unless $self->contr->active;	2785	return unless $self->contr->active;
		2786
		2787	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2788	if ($self->enter_map ($map, $x, $y)) {
		2789	# entering was successful
		2790	delete $self->{_link_recursion};
		2791	# only activate afterwards, to support waiting in hooks
1773	$self->activate_recursive;	2792	$self->activate_recursive;
1774	$self->enter_map ($map, $x, $y);
1775	}
1776
1777	cf::player->attach (
1778	on_logout => sub {
1779	my ($pl) = @_;
1780
1781	# abort map switching before logout
1782	if ($pl->ob->{_link_pos}) {
1783	cf::sync_job {
1784	$pl->ob->leave_link
1785	};
1786	}
1787	},	2793	}
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2794
1791	# try to abort aborted map switching on player login :)	2795	}
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808		2796
1809	=item $player_object->goto ($path, $x, $y)	2797	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1810		2798
		2799	Moves the player to the given map-path and coordinates by first freezing
		2800	her, loading and preparing them map, calling the provided $check callback
		2801	that has to return the map if sucecssful, and then unfreezes the player on
		2802	the new (success) or old (failed) map position. In either case, $done will
		2803	be called at the end of this process.
		2804
		2805	Note that $check will be called with a potentially non-loaded map, so if
		2806	it needs a loaded map it has to call C<< ->load >>.
		2807
1811	=cut	2808	=cut
		2809
		2810	our $GOTOGEN;
1812		2811
1813	sub cf::object::player::goto {	2812	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2813	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2814
1816	$path = new cf::path $path;	2815	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2816	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2817	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2818	($path, $x, $y) = @$EMERGENCY_POSITION;
		2819	}
		2820
		2821	# do generation counting so two concurrent goto's will be executed in-order
		2822	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2823
1818	$self->enter_link;	2824	$self->enter_link;
1819		2825
1820	(async {	2826	(async {
1821	my $map = cf::map::find $path->as_string;	2827	$Coro::current->{desc} = "player::goto $path $x $y";
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2828
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2829	# *tag paths override both path and x|y
		2830	if ($path =~ /^\*(.*)$/) {
		2831	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2832	my $ob = $obs[rand @obs];
		2833
		2834	# see if we actually can go there
		2835	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2836	$ob = $obs[rand @obs];
		2837	} else {
		2838	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2839	}
		2840	# else put us there anyways for now #d#
		2841
		2842	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2843	} else {
		2844	($path, $x, $y) = (undef, undef, undef);
		2845	}
		2846	}
		2847
		2848	my $map = eval {
		2849	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2850
1825	# if $map;	2851	if ($map) {
1826		2852	$map = $map->customise_for ($self);
		2853	$map = $check->($map, $x, $y, $self) if $check && $map;
		2854	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2855	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2856	}
1828		2857
		2858	$map
		2859	};
		2860
		2861	if ($@) {
		2862	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2863	LOG llevError | logBacktrace, Carp::longmess $@;
		2864	}
		2865
		2866	if ($gen == $self->{_goto_generation}) {
		2867	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2868	$self->leave_link ($map, $x, $y);
		2869	}
		2870
		2871	$done->($self) if $done;
1830	})->prio (1);	2872	})->prio (1);
1831	}	2873	}
1832		2874
1833	=item $player_object->enter_exit ($exit_object)	2875	=item $player_object->enter_exit ($exit_object)
1834		2876
…		…
1836		2878
1837	sub parse_random_map_params {	2879	sub parse_random_map_params {
1838	my ($spec) = @_;	2880	my ($spec) = @_;
1839		2881
1840	my $rmp = { # defaults	2882	my $rmp = { # defaults
1841	xsize => 10,	2883	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2884	ysize => (cf::rndm 15, 40),
		2885	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2886	#layout => string,
1843	};	2887	};
1844		2888
1845	for (split /\n/, $spec) {	2889	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2890	my ($k, $v) = split /\s+/, $_, 2;
1847		2891
…		…
1859	# that depends on the exit object	2903	# that depends on the exit object
1860		2904
1861	my $rmp = parse_random_map_params $exit->msg;	2905	my $rmp = parse_random_map_params $exit->msg;
1862		2906
1863	if ($exit->map) {	2907	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2908	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2909	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2910	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2911	$rmp->{origin_y} = $exit->y;
		2912
		2913	$exit->map->touch;
1868	}	2914	}
1869		2915
1870	$rmp->{random_seed} ||= $exit->random_seed;	2916	$rmp->{random_seed} ||= $exit->random_seed;
1871		2917
1872	my $data = cf::to_json $rmp;	2918	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1873	my $md5 = Digest::MD5::md5_hex $data;	2919	my $md5 = Digest::MD5::md5_hex $data;
		2920	my $meta = "$RANDOMDIR/$md5.meta";
1874		2921
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2922	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2923	aio_write $fh, 0, (length $data), $data, 0;
		2924	undef $fh;
		2925	aio_rename "$meta~", $meta;
1877		2926
		2927	my $slaying = "?random/$md5";
		2928
		2929	if ($exit->valid) {
1878	$exit->slaying ("?random/$md5");	2930	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2931	$exit->msg (undef);
		2932	}
1880	}	2933	}
1881	}	2934	}
1882		2935
1883	sub cf::object::player::enter_exit {	2936	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2937	my ($self, $exit) = @_;
…		…
1886	return unless $self->type == cf::PLAYER;	2939	return unless $self->type == cf::PLAYER;
1887		2940
1888	$self->enter_link;	2941	$self->enter_link;
1889		2942
1890	(async {	2943	(async {
1891	$self->deactivate_recursive; # just to be sure	2944	$Coro::current->{desc} = "enter_exit";
		2945
1892	unless (eval {	2946	unless (eval {
		2947	$self->deactivate_recursive; # just to be sure
		2948
		2949	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2950	my $x = $exit->stats->hp;
		2951	my $y = $exit->stats->sp;
		2952
		2953	# special map handling
		2954	my $slaying = $exit->slaying;
		2955
		2956	# special map handling
		2957	if ($slaying eq "/!") {
		2958	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2959
1893	prepare_random_map $exit	2960	prepare_random_map $exit
		2961	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2962
1894	if $exit->slaying eq "/!";	2963	$map = $exit->slaying;
1895		2964
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2965	} elsif ($slaying eq '!up') {
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2966	$map = $exit->map->tile_path (cf::TILE_UP);
		2967	$x = $exit->x;
		2968	$y = $exit->y;
1898		2969
		2970	} elsif ($slaying eq '!down') {
		2971	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2972	$x = $exit->x;
		2973	$y = $exit->y;
		2974	}
		2975
		2976	$self->goto ($map, $x, $y);
		2977
		2978	# if exit is damned, update players death & WoR home-position
		2979	$self->contr->savebed ($map, $x, $y)
		2980	if $exit->flag (cf::FLAG_DAMNED);
		2981
1899	1;	2982	1
1900	}) {	2983	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2984	$self->message ("Something went wrong deep within the deliantra server. "
1902	. "I'll try to bring you back to the map you were before. "	2985	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2986	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2987	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2988
1906	warn "ERROR in enter_exit: $@";	2989	error "ERROR in enter_exit: $@";
1907	$self->leave_link;	2990	$self->leave_link;
1908	}	2991	}
1909	})->prio (1);	2992	})->prio (1);
1910	}	2993	}
1911		2994
…		…
1922		3005
1923	sub cf::client::send_drawinfo {	3006	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	3007	my ($self, $text, $flags) = @_;
1925		3008
1926	utf8::encode $text;	3009	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3010	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	3011	}
1929		3012
		3013	=item $client->send_big_packet ($pkt)
		3014
		3015	Like C<send_packet>, but tries to compress large packets, and fragments
		3016	them as required.
		3017
		3018	=cut
		3019
		3020	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3021
		3022	sub cf::client::send_big_packet {
		3023	my ($self, $pkt) = @_;
		3024
		3025	# try lzf for large packets
		3026	$pkt = "lzf " . Compress::LZF::compress $pkt
		3027	if 1024 <= length $pkt and $self->{can_lzf};
		3028
		3029	# split very large packets
		3030	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3031	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3032	$pkt = "frag";
		3033	}
		3034
		3035	$self->send_packet ($pkt);
		3036	}
		3037
		3038	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3039
		3040	Send a drawinfo or msg packet to the client, formatting the msg for the
		3041	client if neccessary. C<$type> should be a string identifying the type of
		3042	the message, with C<log> being the default. If C<$color> is negative, suppress
		3043	the message unless the client supports the msg packet.
		3044
		3045	=cut
		3046
		3047	# non-persistent channels (usually the info channel)
		3048	our %CHANNEL = (
		3049	"c/motd" => {
		3050	id => "infobox",
		3051	title => "MOTD",
		3052	reply => undef,
		3053	tooltip => "The message of the day",
		3054	},
		3055	"c/identify" => {
		3056	id => "infobox",
		3057	title => "Identify",
		3058	reply => undef,
		3059	tooltip => "Items recently identified",
		3060	},
		3061	"c/examine" => {
		3062	id => "infobox",
		3063	title => "Examine",
		3064	reply => undef,
		3065	tooltip => "Signs and other items you examined",
		3066	},
		3067	"c/shopinfo" => {
		3068	id => "infobox",
		3069	title => "Shop Info",
		3070	reply => undef,
		3071	tooltip => "What your bargaining skill tells you about the shop",
		3072	},
		3073	"c/book" => {
		3074	id => "infobox",
		3075	title => "Book",
		3076	reply => undef,
		3077	tooltip => "The contents of a note or book",
		3078	},
		3079	"c/lookat" => {
		3080	id => "infobox",
		3081	title => "Look",
		3082	reply => undef,
		3083	tooltip => "What you saw there",
		3084	},
		3085	"c/who" => {
		3086	id => "infobox",
		3087	title => "Players",
		3088	reply => undef,
		3089	tooltip => "Shows players who are currently online",
		3090	},
		3091	"c/body" => {
		3092	id => "infobox",
		3093	title => "Body Parts",
		3094	reply => undef,
		3095	tooltip => "Shows which body parts you posess and are available",
		3096	},
		3097	"c/statistics" => {
		3098	id => "infobox",
		3099	title => "Statistics",
		3100	reply => undef,
		3101	tooltip => "Shows your primary statistics",
		3102	},
		3103	"c/skills" => {
		3104	id => "infobox",
		3105	title => "Skills",
		3106	reply => undef,
		3107	tooltip => "Shows your experience per skill and item power",
		3108	},
		3109	"c/shopitems" => {
		3110	id => "infobox",
		3111	title => "Shop Items",
		3112	reply => undef,
		3113	tooltip => "Shows the items currently for sale in this shop",
		3114	},
		3115	"c/resistances" => {
		3116	id => "infobox",
		3117	title => "Resistances",
		3118	reply => undef,
		3119	tooltip => "Shows your resistances",
		3120	},
		3121	"c/pets" => {
		3122	id => "infobox",
		3123	title => "Pets",
		3124	reply => undef,
		3125	tooltip => "Shows information abotu your pets/a specific pet",
		3126	},
		3127	"c/perceiveself" => {
		3128	id => "infobox",
		3129	title => "Perceive Self",
		3130	reply => undef,
		3131	tooltip => "You gained detailed knowledge about yourself",
		3132	},
		3133	"c/uptime" => {
		3134	id => "infobox",
		3135	title => "Uptime",
		3136	reply => undef,
		3137	tooltip => "How long the server has been running since last restart",
		3138	},
		3139	"c/mapinfo" => {
		3140	id => "infobox",
		3141	title => "Map Info",
		3142	reply => undef,
		3143	tooltip => "Information related to the maps",
		3144	},
		3145	"c/party" => {
		3146	id => "party",
		3147	title => "Party",
		3148	reply => "gsay ",
		3149	tooltip => "Messages and chat related to your party",
		3150	},
		3151	"c/death" => {
		3152	id => "death",
		3153	title => "Death",
		3154	reply => undef,
		3155	tooltip => "Reason for and more info about your most recent death",
		3156	},
		3157	"c/say" => $SAY_CHANNEL,
		3158	"c/chat" => $CHAT_CHANNEL,
		3159	);
		3160
		3161	sub cf::client::send_msg {
		3162	my ($self, $channel, $msg, $color, @extra) = @_;
		3163
		3164	$msg = $self->pl->expand_cfpod ($msg)
		3165	unless $color & cf::NDI_VERBATIM;
		3166
		3167	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3168
		3169	# check predefined channels, for the benefit of C
		3170	if ($CHANNEL{$channel}) {
		3171	$channel = $CHANNEL{$channel};
		3172
		3173	$self->ext_msg (channel_info => $channel);
		3174	$channel = $channel->{id};
		3175
		3176	} elsif (ref $channel) {
		3177	# send meta info to client, if not yet sent
		3178	unless (exists $self->{channel}{$channel->{id}}) {
		3179	$self->{channel}{$channel->{id}} = $channel;
		3180	$self->ext_msg (channel_info => $channel);
		3181	}
		3182
		3183	$channel = $channel->{id};
		3184	}
		3185
		3186	return unless @extra || length $msg;
		3187
		3188	# default colour, mask it out
		3189	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3190	if $color & cf::NDI_DEF;
		3191
		3192	my $pkt = "msg "
		3193	. $self->{json_coder}->encode (
		3194	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3195	);
		3196
		3197	$self->send_big_packet ($pkt);
		3198	}
		3199
		3200	=item $client->ext_msg ($type, @msg)
		3201
		3202	Sends an ext event to the client.
		3203
		3204	=cut
		3205
		3206	sub cf::client::ext_msg($$@) {
		3207	my ($self, $type, @msg) = @_;
		3208
		3209	if ($self->extcmd == 2) {
		3210	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3211	} elsif ($self->extcmd == 1) { # TODO: remove
		3212	push @msg, msgtype => "event_$type";
		3213	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3214	}
		3215	}
		3216
		3217	=item $client->ext_reply ($msgid, @msg)
		3218
		3219	Sends an ext reply to the client.
		3220
		3221	=cut
		3222
		3223	sub cf::client::ext_reply($$@) {
		3224	my ($self, $id, @msg) = @_;
		3225
		3226	if ($self->extcmd == 2) {
		3227	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3228	} elsif ($self->extcmd == 1) {
		3229	#TODO: version 1, remove
		3230	unshift @msg, msgtype => "reply", msgid => $id;
		3231	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3232	}
		3233	}
1930		3234
1931	=item $success = $client->query ($flags, "text", \&cb)	3235	=item $success = $client->query ($flags, "text", \&cb)
1932		3236
1933	Queues a query to the client, calling the given callback with	3237	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3238	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3239	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		3240
1937	Queries can fail, so check the return code. Or don't, as queries will become	3241	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	3242	become reliable at some point in the future.
1939		3243
1940	=cut	3244	=cut
1941		3245
1942	sub cf::client::query {	3246	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	3247	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	3255	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3256	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		3257
1954	$self->send_packet ($self->{query_queue}[0][0])	3258	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	3259	if @{ $self->{query_queue} } == 1;
		3260
		3261	1
1956	}	3262	}
1957		3263
1958	cf::client->attach (	3264	cf::client->attach (
		3265	on_connect => sub {
		3266	my ($ns) = @_;
		3267
		3268	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3269	},
1959	on_reply => sub {	3270	on_reply => sub {
1960	my ($ns, $msg) = @_;	3271	my ($ns, $msg) = @_;
1961		3272
1962	# this weird shuffling is so that direct followup queries	3273	# this weird shuffling is so that direct followup queries
1963	# get handled first	3274	# get handled first
1964	my $queue = delete $ns->{query_queue}	3275	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	3276	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		3277
1967	(shift @$queue)->[1]->($msg);	3278	(shift @$queue)->[1]->($msg);
		3279	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		3280
1969	push @{ $ns->{query_queue} }, @$queue;	3281	push @{ $ns->{query_queue} }, @$queue;
1970		3282
1971	if (@{ $ns->{query_queue} } == @$queue) {	3283	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	3284	if (@$queue) {
…		…
1974	} else {	3286	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3287	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	3288	}
1977	}	3289	}
1978	},	3290	},
		3291	on_exticmd => sub {
		3292	my ($ns, $buf) = @_;
		3293
		3294	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3295
		3296	if (ref $msg) {
		3297	my ($type, $reply, @payload) =
		3298	"ARRAY" eq ref $msg
		3299	? @$msg
		3300	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3301
		3302	my @reply;
		3303
		3304	if (my $cb = $EXTICMD{$type}) {
		3305	@reply = $cb->($ns, @payload);
		3306	}
		3307
		3308	$ns->ext_reply ($reply, @reply)
		3309	if $reply;
		3310
		3311	} else {
		3312	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3313	}
		3314
		3315	cf::override;
		3316	},
1979	);	3317	);
1980		3318
1981	=item $client->async (\&cb)	3319	=item $client->async (\&cb)
1982		3320
1983	Create a new coroutine, running the specified callback. The coroutine will	3321	Create a new coroutine, running the specified callback. The coroutine will
…		…
1999		3337
2000	$coro	3338	$coro
2001	}	3339	}
2002		3340
2003	cf::client->attach (	3341	cf::client->attach (
2004	on_destroy => sub {	3342	on_client_destroy => sub {
2005	my ($ns) = @_;	3343	my ($ns) = @_;
2006		3344
2007	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3345	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2008	},	3346	},
2009	);	3347	);
…		…
2024	our $safe = new Safe "safe";	3362	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	3363	our $safe_hole = new Safe::Hole;
2026		3364
2027	$SIG{FPE} = 'IGNORE';	3365	$SIG{FPE} = 'IGNORE';
2028		3366
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3367	$safe->permit_only (Opcode::opset qw(
		3368	:base_core :base_mem :base_orig :base_math :base_loop
		3369	grepstart grepwhile mapstart mapwhile
		3370	sort time
		3371	));
2030		3372
2031	# here we export the classes and methods available to script code	3373	# here we export the classes and methods available to script code
2032		3374
2033	=pod	3375	=pod
2034		3376
2035	The following fucntions and emthods are available within a safe environment:	3377	The following functions and methods are available within a safe environment:
2036		3378
2037	cf::object contr pay_amount pay_player map	3379	cf::object
		3380	contr pay_amount pay_player map x y force_find force_add destroy
		3381	insert remove name archname title slaying race decrease split
		3382	value
		3383
2038	cf::object::player player	3384	cf::object::player
2039	cf::player peaceful	3385	player
2040	cf::map trigger	3386
		3387	cf::player
		3388	peaceful
		3389
		3390	cf::map
		3391	trigger
2041		3392
2042	=cut	3393	=cut
2043		3394
2044	for (	3395	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	3396	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3397	insert remove inv nrof name archname title slaying race
		3398	decrease split destroy change_exp value msg lore send_msg)],
2046	["cf::object::player" => qw(player)],	3399	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	3400	["cf::player" => qw(peaceful send_msg)],
2048	["cf::map" => qw(trigger)],	3401	["cf::map" => qw(trigger)],
2049	) {	3402	) {
2050	no strict 'refs';
2051	my ($pkg, @funs) = @$_;	3403	my ($pkg, @funs) = @$_;
2052	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3404	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2053	for @funs;	3405	for @funs;
2054	}	3406	}
2055		3407
…		…
2070		3422
2071	my $qcode = $code;	3423	my $qcode = $code;
2072	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3424	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2073	$qcode =~ s/\n/\\n/g;	3425	$qcode =~ s/\n/\\n/g;
2074		3426
		3427	%vars = (_dummy => 0) unless %vars;
		3428
		3429	my @res;
2075	local $_;	3430	local $_;
2076	local @safe::cf::_safe_eval_args = values %vars;
2077		3431
2078	my $eval =	3432	my $eval =
2079	"do {\n"	3433	"do {\n"
2080	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3434	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2081	. "#line 0 \"{$qcode}\"\n"	3435	. "#line 0 \"{$qcode}\"\n"
2082	. $code	3436	. $code
2083	. "\n}"	3437	. "\n}"
2084	;	3438	;
2085		3439
		3440	if ($CFG{safe_eval}) {
2086	sub_generation_inc;	3441	sub_generation_inc;
		3442	local @safe::cf::_safe_eval_args = values %vars;
2087	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3443	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2088	sub_generation_inc;	3444	sub_generation_inc;
		3445	} else {
		3446	local @cf::_safe_eval_args = values %vars;
		3447	@res = wantarray ? eval eval : scalar eval $eval;
		3448	}
2089		3449
2090	if ($@) {	3450	if ($@) {
2091	warn "$@";	3451	warn "$@",
2092	warn "while executing safe code '$code'\n";	3452	"while executing safe code '$code'\n",
2093	warn "with arguments " . (join " ", %vars) . "\n";	3453	"with arguments " . (join " ", %vars) . "\n";
2094	}	3454	}
2095		3455
2096	wantarray ? @res : $res[0]	3456	wantarray ? @res : $res[0]
2097	}	3457	}
2098		3458
…		…
2112	=cut	3472	=cut
2113		3473
2114	sub register_script_function {	3474	sub register_script_function {
2115	my ($fun, $cb) = @_;	3475	my ($fun, $cb) = @_;
2116		3476
2117	no strict 'refs';	3477	$fun = "safe::$fun" if $CFG{safe_eval};
2118	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3478	*$fun = $safe_hole->wrap ($cb);
2119	}	3479	}
2120		3480
2121	=back	3481	=back
2122		3482
2123	=cut	3483	=cut
2124		3484
2125	#############################################################################	3485	#############################################################################
		3486	# the server's init and main functions
2126		3487
2127	=head2 EXTENSION DATABASE SUPPORT	3488	sub load_facedata($) {
		3489	my ($path) = @_;
2128		3490
2129	Crossfire maintains a very simple database for extension use. It can	3491	# HACK to clear player env face cache, we need some signal framework
2130	currently store anything that can be serialised using Storable, which	3492	# for this (global event?)
2131	excludes objects.	3493	%ext::player_env::MUSIC_FACE_CACHE = ();
2132		3494
2133	The parameter C<$family> should best start with the name of the extension	3495	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2134	using it, it should be unique.
2135		3496
2136	=over 4	3497	trace "loading facedata from $path\n";
2137		3498
2138	=item $hashref = cf::db_get $family	3499	my $facedata = decode_storable load_file $path;
2139		3500
2140	Return a hashref for use by the extension C<$family>, which can be	3501	$facedata->{version} == 2
2141	modified. After modifications, you have to call C<cf::db_dirty> or	3502	or cf::cleanup "$path: version mismatch, cannot proceed.";
2142	C<cf::db_sync>.
2143		3503
2144	=item $value = cf::db_get $family => $key	3504	# patch in the exptable
2145		3505	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2146	Returns a single value from the database	3506	$facedata->{resource}{"res/exp_table"} = {
2147		3507	type => FT_RSRC,
2148	=item cf::db_put $family => $hashref	3508	data => $exp_table,
2149		3509	hash => (Digest::MD5::md5 $exp_table),
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	3510	};
		3511	cf::cede_to_tick;
2199		3512
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}	3513	{
		3514	my $faces = $facedata->{faceinfo};
2204		3515
2205	sub db_get($;$) {	3516	while (my ($face, $info) = each %$faces) {
2206	@_ >= 2	3517	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2207	? $DB->{$_[0]}{$_[1]}
2208	: ($DB->{$_[0]} ||= { })
2209	}
2210		3518
2211	sub db_put($$;$) {	3519	cf::face::set_visibility $idx, $info->{visibility};
2212	if (@_ >= 3) {	3520	cf::face::set_magicmap $idx, $info->{magicmap};
2213	$DB->{$_[0]}{$_[1]} = $_[2];	3521	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2214	} else {	3522	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2215	$DB->{$_[0]} = $_[1];	3523	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2216	}
2217	db_dirty;
2218	}
2219		3524
2220	cf::global->attach (	3525	cf::cede_to_tick;
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	3526	}
2225	);
2226	}
2227		3527
2228	#############################################################################	3528	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3529	next unless $info->{smooth};
2230		3530
2231	sub cfg_load {	3531	my $idx = cf::face::find $face
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3532	or next;
2233	or return;
2234		3533
2235	local $/;	3534	if (my $smooth = cf::face::find $info->{smooth}) {
2236	*CFG = YAML::Syck::Load <$fh>;	3535	cf::face::set_smooth $idx, $smooth;
		3536	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3537	} else {
		3538	error "smooth face '$info->{smooth}' not found for face '$face'";
		3539	}
2237		3540
		3541	cf::cede_to_tick;
		3542	}
		3543	}
		3544
		3545	{
		3546	my $anims = $facedata->{animinfo};
		3547
		3548	while (my ($anim, $info) = each %$anims) {
		3549	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3550	cf::cede_to_tick;
		3551	}
		3552
		3553	cf::anim::invalidate_all; # d'oh
		3554	}
		3555
		3556	{
		3557	my $res = $facedata->{resource};
		3558
		3559	while (my ($name, $info) = each %$res) {
		3560	if (defined $info->{type}) {
		3561	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3562
		3563	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3564	cf::face::set_type $idx, $info->{type};
		3565	} else {
		3566	$RESOURCE{$name} = $info; # unused
		3567	}
		3568
		3569	cf::cede_to_tick;
		3570	}
		3571	}
		3572
		3573	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3574
		3575	1
		3576	}
		3577
		3578	register_exticmd fx_want => sub {
		3579	my ($ns, $want) = @_;
		3580
		3581	while (my ($k, $v) = each %$want) {
		3582	$ns->fx_want ($k, $v);
		3583	}
		3584	};
		3585
		3586	sub load_resource_file($) {
		3587	my $guard = lock_acquire "load_resource_file";
		3588
		3589	my $status = load_resource_file_ $_[0];
		3590	get_slot 0.1, 100;
		3591	cf::arch::commit_load;
		3592
		3593	$status
		3594	}
		3595
		3596	sub reload_regions {
		3597	# HACK to clear player env face cache, we need some signal framework
		3598	# for this (global event?)
		3599	%ext::player_env::MUSIC_FACE_CACHE = ();
		3600
		3601	load_resource_file "$MAPDIR/regions"
		3602	or die "unable to load regions file\n";
		3603
		3604	for (cf::region::list) {
		3605	$_->{match} = qr/$_->{match}/
		3606	if exists $_->{match};
		3607	}
		3608	}
		3609
		3610	sub reload_facedata {
		3611	load_facedata "$DATADIR/facedata"
		3612	or die "unable to load facedata\n";
		3613	}
		3614
		3615	sub reload_archetypes {
		3616	load_resource_file "$DATADIR/archetypes"
		3617	or die "unable to load archetypes\n";
		3618	}
		3619
		3620	sub reload_treasures {
		3621	load_resource_file "$DATADIR/treasures"
		3622	or die "unable to load treasurelists\n";
		3623	}
		3624
		3625	sub reload_sound {
		3626	trace "loading sound config from $DATADIR/sound\n";
		3627
		3628	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3629
		3630	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3631	my $sound = $soundconf->{compat}[$_]
		3632	or next;
		3633
		3634	my $face = cf::face::find "sound/$sound->[1]";
		3635	cf::sound::set $sound->[0] => $face;
		3636	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3637	}
		3638
		3639	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3640	my $face = cf::face::find "sound/$v";
		3641	cf::sound::set $k => $face;
		3642	}
		3643	}
		3644
		3645	sub reload_resources {
		3646	trace "reloading resource files...\n";
		3647
		3648	reload_exp_table;
		3649	reload_materials;
		3650	reload_facedata;
		3651	reload_sound;
		3652	reload_archetypes;
		3653	reload_regions;
		3654	reload_treasures;
		3655
		3656	trace "finished reloading resource files\n";
		3657	}
		3658
		3659	sub reload_config {
		3660	trace "reloading config file...\n";
		3661
		3662	my $config = load_file "$CONFDIR/config";
		3663	utf8::decode $config;
		3664	*CFG = decode_yaml $config;
		3665
2238	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3666	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2239		3667
2240	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3668	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2241	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3669	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2242		3670
2243	if (exists $CFG{mlockall}) {	3671	if (exists $CFG{mlockall}) {
…		…
2247	};	3675	};
2248	warn $@ if $@;	3676	warn $@ if $@;
2249	}	3677	}
2250	}	3678	}
2251		3679
		3680	sub pidfile() {
		3681	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3682	or die "$PIDFILE: $!";
		3683	flock $fh, &Fcntl::LOCK_EX
		3684	or die "$PIDFILE: flock: $!";
		3685	$fh
		3686	}
		3687
		3688	# make sure only one server instance is running at any one time
		3689	sub atomic {
		3690	my $fh = pidfile;
		3691
		3692	my $pid = <$fh>;
		3693	kill 9, $pid if $pid > 0;
		3694
		3695	seek $fh, 0, 0;
		3696	print $fh $$;
		3697	}
		3698
		3699	sub main_loop {
		3700	trace "EV::loop starting\n";
		3701	if (1) {
		3702	EV::loop;
		3703	}
		3704	trace "EV::loop returned\n";
		3705	goto &main_loop unless $REALLY_UNLOOP;
		3706	}
		3707
2252	sub main {	3708	sub main {
		3709	cf::init_globals; # initialise logging
		3710
		3711	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3712	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3713	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3714	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3715
		3716	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3717
2253	# we must not ever block the main coroutine	3718	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3719	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3720	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2256	async { Event::one_event };	3721	(async {
		3722	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3723	EV::loop EV::LOOP_ONESHOT;
		3724	})->prio (Coro::PRIO_MAX);
2257	};	3725	};
2258		3726
2259	cfg_load;	3727	evthread_start IO::AIO::poll_fileno;
2260	db_load;	3728
		3729	cf::sync_job {
		3730	cf::incloader::init ();
		3731
		3732	cf::init_anim;
		3733	cf::init_attackmess;
		3734	cf::init_dynamic;
		3735
		3736	cf::load_settings;
		3737
		3738	reload_resources;
		3739	reload_config;
		3740	db_init;
		3741
		3742	cf::init_uuid;
		3743	cf::init_signals;
		3744	cf::init_skills;
		3745
		3746	cf::init_beforeplay;
		3747
		3748	atomic;
		3749
2261	load_extensions;	3750	load_extensions;
2262	Event::loop;	3751
		3752	utime time, time, $RUNTIMEFILE;
		3753
		3754	# no (long-running) fork's whatsoever before this point(!)
		3755	use POSIX ();
		3756	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3757
		3758	cf::_post_init 0;
		3759	};
		3760
		3761	cf::object::thawer::errors_are_fatal 0;
		3762	info "parse errors in files are no longer fatal from this point on.\n";
		3763
		3764	my $free_main; $free_main = EV::idle sub {
		3765	undef $free_main;
		3766	undef &main; # free gobs of memory :)
		3767	};
		3768
		3769	goto &main_loop;
2263	}	3770	}
2264		3771
2265	#############################################################################	3772	#############################################################################
2266	# initialisation and cleanup	3773	# initialisation and cleanup
2267		3774
2268	# install some emergency cleanup handlers	3775	# install some emergency cleanup handlers
2269	BEGIN {	3776	BEGIN {
		3777	our %SIGWATCHER = ();
2270	for my $signal (qw(INT HUP TERM)) {	3778	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3779	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2272	data => WF_AUTOCANCEL,
2273	signal => $signal,
2274	cb => sub {
2275	cf::cleanup "SIG$signal";	3780	cf::cleanup "SIG$signal";
2276	},
2277	);	3781	};
		3782	}
		3783	}
		3784
		3785	sub write_runtime_sync {
		3786	my $t0 = AE::time;
		3787
		3788	# first touch the runtime file to show we are still running:
		3789	# the fsync below can take a very very long time.
		3790
		3791	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3792
		3793	my $guard = cf::lock_acquire "write_runtime";
		3794
		3795	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3796	or return;
		3797
		3798	my $value = $cf::RUNTIME + 90 + 10;
		3799	# 10 is the runtime save interval, for a monotonic clock
		3800	# 60 allows for the watchdog to kill the server.
		3801
		3802	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3803	and return;
		3804
		3805	# always fsync - this file is important
		3806	aio_fsync $fh
		3807	and return;
		3808
		3809	# touch it again to show we are up-to-date
		3810	aio_utime $fh, undef, undef;
		3811
		3812	close $fh
		3813	or return;
		3814
		3815	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3816	and return;
		3817
		3818	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3819
2278	}	3820	1
		3821	}
		3822
		3823	our $uuid_lock;
		3824	our $uuid_skip;
		3825
		3826	sub write_uuid_sync($) {
		3827	$uuid_skip ||= $_[0];
		3828
		3829	return if $uuid_lock;
		3830	local $uuid_lock = 1;
		3831
		3832	my $uuid = "$LOCALDIR/uuid";
		3833
		3834	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3835	or return;
		3836
		3837	my $value = uuid_seq uuid_cur;
		3838
		3839	unless ($value) {
		3840	info "cowardly refusing to write zero uuid value!\n";
		3841	return;
		3842	}
		3843
		3844	my $value = uuid_str $value + $uuid_skip;
		3845	$uuid_skip = 0;
		3846
		3847	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3848	and return;
		3849
		3850	# always fsync - this file is important
		3851	aio_fsync $fh
		3852	and return;
		3853
		3854	close $fh
		3855	or return;
		3856
		3857	aio_rename "$uuid~", $uuid
		3858	and return;
		3859
		3860	trace "uuid file written ($value).\n";
		3861
		3862	1
		3863
		3864	}
		3865
		3866	sub write_uuid($$) {
		3867	my ($skip, $sync) = @_;
		3868
		3869	$sync ? write_uuid_sync $skip
		3870	: async { write_uuid_sync $skip };
2279	}	3871	}
2280		3872
2281	sub emergency_save() {	3873	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3874	my $freeze_guard = cf::freeze_mainloop;
2283		3875
2284	warn "enter emergency perl save\n";	3876	info "emergency_perl_save: enter\n";
		3877
		3878	# this is a trade-off: we want to be very quick here, so
		3879	# save all maps without fsync, and later call a global sync
		3880	# (which in turn might be very very slow)
		3881	local $USE_FSYNC = 0;
2285		3882
2286	cf::sync_job {	3883	cf::sync_job {
		3884	cf::write_runtime_sync; # external watchdog should not bark
		3885
2287	# use a peculiar iteration method to avoid tripping on perl	3886	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3887	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3888	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3889	info "emergency_perl_save: begin player save\n";
2291	for my $login (keys %cf::PLAYER) {	3890	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3891	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3892	$pl->valid or next;
		3893	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2294	$pl->save;	3894	$pl->save;
2295	}	3895	}
2296	warn "end emergency player save\n";	3896	info "emergency_perl_save: end player save\n";
2297		3897
2298	warn "begin emergency map save\n";	3898	cf::write_runtime_sync; # external watchdog should not bark
		3899
		3900	info "emergency_perl_save: begin map save\n";
2299	for my $path (keys %cf::MAP) {	3901	for my $path (keys %cf::MAP) {
2300	my $map = $cf::MAP{$path} or next;	3902	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3903	$map->valid or next;
2302	$map->save;	3904	$map->save;
2303	}	3905	}
2304	warn "end emergency map save\n";	3906	info "emergency_perl_save: end map save\n";
		3907
		3908	cf::write_runtime_sync; # external watchdog should not bark
		3909
		3910	info "emergency_perl_save: begin database checkpoint\n";
		3911	BDB::db_env_txn_checkpoint $DB_ENV;
		3912	info "emergency_perl_save: end database checkpoint\n";
		3913
		3914	info "emergency_perl_save: begin write uuid\n";
		3915	write_uuid_sync 1;
		3916	info "emergency_perl_save: end write uuid\n";
		3917
		3918	cf::write_runtime_sync; # external watchdog should not bark
		3919
		3920	trace "emergency_perl_save: syncing database to disk";
		3921	BDB::db_env_txn_checkpoint $DB_ENV;
		3922
		3923	info "emergency_perl_save: starting sync\n";
		3924	IO::AIO::aio_sync sub {
		3925	info "emergency_perl_save: finished sync\n";
		3926	};
		3927
		3928	cf::write_runtime_sync; # external watchdog should not bark
		3929
		3930	trace "emergency_perl_save: flushing outstanding aio requests";
		3931	while (IO::AIO::nreqs || BDB::nreqs) {
		3932	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3933	}
		3934
		3935	cf::write_runtime_sync; # external watchdog should not bark
2305	};	3936	};
2306		3937
2307	warn "leave emergency perl save\n";	3938	info "emergency_perl_save: leave\n";
2308	}	3939	}
2309		3940
		3941	sub post_cleanup {
		3942	my ($make_core) = @_;
		3943
		3944	IO::AIO::flush;
		3945
		3946	error Carp::longmess "post_cleanup backtrace"
		3947	if $make_core;
		3948
		3949	my $fh = pidfile;
		3950	unlink $PIDFILE if <$fh> == $$;
		3951	}
		3952
		3953	# a safer delete_package, copied from Symbol
		3954	sub clear_package($) {
		3955	my $pkg = shift;
		3956
		3957	# expand to full symbol table name if needed
		3958	unless ($pkg =~ /^main::.*::$/) {
		3959	$pkg = "main$pkg" if $pkg =~ /^::/;
		3960	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3961	$pkg .= '::' unless $pkg =~ /::$/;
		3962	}
		3963
		3964	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3965	my $stem_symtab = *{$stem}{HASH};
		3966
		3967	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3968	or return;
		3969
		3970	# clear all symbols
		3971	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3972	for my $name (keys %$leaf_symtab) {
		3973	_gv_clear *{"$pkg$name"};
		3974	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3975	}
		3976	}
		3977
2310	sub reload() {	3978	sub do_reload_perl() {
2311	# can/must only be called in main	3979	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3980	unless (in_main) {
2313	warn "can only reload from main coroutine\n";	3981	error "can only reload from main coroutine";
2314	return;	3982	return;
2315	}	3983	}
2316		3984
2317	warn "reloading...";	3985	return if $RELOAD++;
2318		3986
2319	warn "freezing server";	3987	my $t1 = AE::time;
2320	my $guard = freeze_mainloop;	3988
		3989	while ($RELOAD) {
		3990	cf::get_slot 0.1, -1, "reload_perl";
		3991	info "perl_reload: reloading...";
		3992
		3993	trace "perl_reload: entering sync_job";
		3994
		3995	cf::sync_job {
2321	cf::emergency_save;	3996	#cf::emergency_save;
2322		3997
2323	warn "sync database to disk";	3998	trace "perl_reload: cancelling all extension coros";
2324	cf::db_sync;
2325	IO::AIO::flush;
2326
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved
2329
2330	warn "cancel all watchers";
2331	for (Event::all_watchers) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;
2333	}
2334
2335	warn "cancel all extension coros";
2336	$_->cancel for values %EXT_CORO;	3999	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	4000	%EXT_CORO = ();
2338		4001
2339	warn "remove commands";	4002	trace "perl_reload: removing commands";
2340	%COMMAND = ();	4003	%COMMAND = ();
2341		4004
2342	warn "remove ext commands";	4005	trace "perl_reload: removing ext/exti commands";
2343	%EXTCMD = ();	4006	%EXTCMD = ();
		4007	%EXTICMD = ();
2344		4008
2345	warn "unload/nuke all extensions";	4009	trace "perl_reload: unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	4010	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	4011	trace "... unloading $pkg";
2348		4012
2349	if (my $cb = $pkg->can ("unload")) {	4013	if (my $cb = $pkg->can ("unload")) {
2350	eval {	4014	eval {
2351	$cb->($pkg);	4015	$cb->($pkg);
2352	1	4016	1
2353	} or warn "$pkg unloaded, but with errors: $@";	4017	} or error "$pkg unloaded, but with errors: $@";
		4018	}
		4019
		4020	trace "... clearing $pkg";
		4021	clear_package $pkg;
2354	}	4022	}
2355		4023
2356	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;
2358	}
2359
2360	warn "unload all perl modules loaded from $LIBDIR";	4024	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	4025	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4026	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		4027
2364	warn "removing <$k>";	4028	trace "... unloading $k";
2365	delete $INC{$k};	4029	delete $INC{$k};
2366		4030
2367	$k =~ s/\.pm$//;	4031	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	4032	$k =~ s/\//::/g;
2369		4033
2370	if (my $cb = $k->can ("unload_module")) {	4034	if (my $cb = $k->can ("unload_module")) {
2371	$cb->();	4035	$cb->();
		4036	}
		4037
		4038	clear_package $k;
2372	}	4039	}
2373		4040
2374	Symbol::delete_package $k;
2375	}
2376
2377	warn "get rid of safe::, as good as possible";	4041	trace "perl_reload: getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	4042	clear_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4043	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		4044
2381	warn "unload cf.pm \"a bit\"";	4045	trace "perl_reload: unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	4046	delete $INC{"cf.pm"};
		4047	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2383		4048
2384	# don't, removes xs symbols, too,	4049	# don't, removes xs symbols, too,
2385	# and global variables created in xs	4050	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	4051	#clear_package __PACKAGE__;
2387		4052
2388	warn "reloading cf.pm";	4053	info "perl_reload: unload completed, starting to reload now";
		4054
		4055	trace "perl_reload: reloading cf.pm";
2389	require cf;	4056	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4057	cf::_connect_to_perl_1;
2391		4058
2392	warn "load config and database again";	4059	trace "perl_reload: loading config and database again";
2393	cf::cfg_load;	4060	cf::reload_config;
2394	cf::db_load;
2395		4061
2396	warn "load extensions";	4062	trace "perl_reload: loading extensions";
2397	cf::load_extensions;	4063	cf::load_extensions;
2398		4064
		4065	if ($REATTACH_ON_RELOAD) {
2399	warn "reattach attachments to objects/players";	4066	trace "perl_reload: reattaching attachments to objects/players";
2400	_global_reattach;	4067	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	4068	trace "perl_reload: reattaching attachments to maps";
2402	reattach $_ for values %MAP;	4069	reattach $_ for values %MAP;
		4070	trace "perl_reload: reattaching attachments to players";
		4071	reattach $_ for values %PLAYER;
		4072	}
		4073
		4074	cf::_post_init 1;
		4075
		4076	trace "perl_reload: leaving sync_job";
		4077
		4078	1
		4079	} or do {
		4080	error $@;
		4081	cf::cleanup "perl_reload: error, exiting.";
		4082	};
		4083
		4084	--$RELOAD;
		4085	}
		4086
		4087	$t1 = AE::time - $t1;
		4088	info "perl_reload: completed in ${t1}s\n";
		4089	};
		4090
		4091	our $RELOAD_WATCHER; # used only during reload
		4092
		4093	sub reload_perl() {
		4094	# doing reload synchronously and two reloads happen back-to-back,
		4095	# coro crashes during coro_state_free->destroy here.
		4096
		4097	$RELOAD_WATCHER ||= cf::async {
		4098	Coro::AIO::aio_wait cache_extensions;
		4099
		4100	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4101	do_reload_perl;
		4102	undef $RELOAD_WATCHER;
		4103	};
2403	};	4104	};
2404
2405	if ($@) {
2406	warn $@;
2407	warn "error while reloading, exiting.";
2408	exit 1;
2409	}
2410
2411	warn "reloaded";
2412	};
2413
2414	#############################################################################
2415
2416	unless ($LINK_MAP) {
2417	$LINK_MAP = cf::map::new;
2418
2419	$LINK_MAP->width (41);
2420	$LINK_MAP->height (41);
2421	$LINK_MAP->alloc;
2422	$LINK_MAP->path ("{link}");
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,
2429	cb => sub {
2430	$_[0]->w->cancel;
2431
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});
2450
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	4105	}
2456		4106
2457	register_command "reload" => sub {	4107	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	4108	my ($who, $arg) = @_;
2459		4109
2460	if ($who->flag (FLAG_WIZ)) {	4110	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	4111	$who->message ("reloading server.");
		4112	async {
		4113	$Coro::current->{desc} = "perl_reload";
		4114	reload_perl;
		4115	};
2464	}	4116	}
2465	};	4117	};
2466		4118
2467	unshift @INC, $LIBDIR;	4119	#############################################################################
2468		4120
2469	$TICK_WATCHER = Event->timer (	4121	my $bug_warning = 0;
2470	reentrant => 0,
2471	prio => 0,
2472	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,
2474	cb => sub {
2475	$NOW = Event::time;
2476		4122
2477	cf::server_tick; # one server iteration	4123	sub wait_for_tick() {
2478	$RUNTIME += $TICK;	4124	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2479	$NEXT_TICK += $TICK;
2480		4125
		4126	$WAIT_FOR_TICK->wait;
		4127	}
		4128
		4129	sub wait_for_tick_begin() {
		4130	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4131
		4132	my $signal = new Coro::Signal;
		4133	push @WAIT_FOR_TICK_BEGIN, $signal;
		4134	$signal->wait;
		4135	}
		4136
		4137	sub tick {
		4138	if ($Coro::current != $Coro::main) {
		4139	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4140	unless ++$bug_warning > 10;
		4141	return;
		4142	}
		4143
		4144	cf::one_tick; # one server iteration
		4145
		4146	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4147
		4148	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4149	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4150	Coro::async_pool {
		4151	$Coro::current->{desc} = "runtime saver";
		4152	write_runtime_sync
		4153	or error "ERROR: unable to write runtime file: $!";
		4154	};
		4155	}
		4156
		4157	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4158	$sig->send;
		4159	}
2481	$WAIT_FOR_TICK->broadcast;	4160	$WAIT_FOR_TICK->broadcast;
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2483		4161
2484	# if we are delayed by four ticks or more, skip them all	4162	$LOAD = ($NOW - $TICK_START) / $TICK;
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4163	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2486		4164
2487	$TICK_WATCHER->at ($NEXT_TICK);	4165	if (0) {
2488	$TICK_WATCHER->start;	4166	if ($NEXT_TICK) {
		4167	my $jitter = $TICK_START - $NEXT_TICK;
		4168	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4169	debug "jitter $JITTER\n";#d#
		4170	}
2489	},	4171	}
2490	);	4172	}
2491		4173
		4174	{
		4175	# configure BDB
		4176
		4177	BDB::min_parallel 16;
		4178	BDB::max_poll_reqs $TICK * 0.1;
		4179	$AnyEvent::BDB::WATCHER->priority (1);
		4180
		4181	unless ($DB_ENV) {
		4182	$DB_ENV = BDB::db_env_create;
		4183	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4184	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4185	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4186	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4187	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4188
		4189	cf::sync_job {
		4190	eval {
		4191	BDB::db_env_open
		4192	$DB_ENV,
		4193	$BDBDIR,
		4194	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4195	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4196	0666;
		4197
		4198	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4199	};
		4200
		4201	cf::cleanup "db_env_open(db): $@" if $@;
		4202	};
		4203	}
		4204
		4205	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4206	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4207	};
		4208	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4209	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4210	};
		4211	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4212	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4213	};
		4214	}
		4215
		4216	{
		4217	# configure IO::AIO
		4218
		4219	IO::AIO::min_parallel 8;
2492	IO::AIO::max_poll_time $TICK * 0.2;	4220	IO::AIO::max_poll_time $TICK * 0.1;
		4221	undef $AnyEvent::AIO::WATCHER;
		4222	}
2493		4223
2494	Event->io (	4224	our $_log_backtrace;
2495	fd => IO::AIO::poll_fileno,	4225	our $_log_backtrace_last;
2496	poll => 'r',
2497	prio => 5,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501		4226
2502	Event->timer (	4227	sub _log_backtrace {
2503	data => WF_AUTOCANCEL,	4228	my ($msg, @addr) = @_;
2504	after => 0,	4229
2505	interval => 10,	4230	$msg =~ s/\n$//;
2506	cb => sub {	4231
2507	(Coro::unblock_sub {	4232	if ($_log_backtrace_last eq $msg) {
2508	write_runtime	4233	LOG llevInfo, "[ABT] $msg\n";
2509	or warn "ERROR: unable to write runtime file: $!";	4234	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4235	# limit the # of concurrent backtraces
		4236	} elsif ($_log_backtrace < 2) {
		4237	$_log_backtrace_last = $msg;
		4238	++$_log_backtrace;
		4239	my $perl_bt = Carp::longmess $msg;
		4240	async {
		4241	$Coro::current->{desc} = "abt $msg";
		4242
		4243	my @bt = fork_call {
		4244	@addr = map { sprintf "%x", $_ } @addr;
		4245	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4246	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4247	or die "addr2line: $!";
		4248
		4249	my @funcs;
		4250	my @res = <$fh>;
		4251	chomp for @res;
		4252	while (@res) {
		4253	my ($func, $line) = splice @res, 0, 2, ();
		4254	push @funcs, "[$func] $line";
		4255	}
		4256
		4257	@funcs
		4258	};
		4259
		4260	LOG llevInfo, "[ABT] $perl_bt\n";
		4261	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4262	LOG llevInfo, "[ABT] $_\n" for @bt;
		4263	--$_log_backtrace;
2510	})->();	4264	};
		4265	} else {
		4266	LOG llevInfo, "[ABT] $msg\n";
		4267	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2511	},	4268	}
2512	);	4269	}
		4270
		4271	# load additional modules
		4272	require "cf/$_.pm" for @EXTRA_MODULES;
		4273	cf::_connect_to_perl_2;
2513		4274
2514	END { cf::emergency_save }	4275	END { cf::emergency_save }
2515		4276
2516	1	4277	1
2517		4278

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