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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.149 by root, Mon Jan 8 14:11:05 2007 UTC vs.
Revision 1.578 by root, Wed Jan 4 02:48:57 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.32 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	#our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
45	our $NOW;	138	our $NOW;
46		139
47	our %CFG;	140	our (%PLAYER, %PLAYER_LOADING); # all users
		141	our (%MAP, %MAP_LOADING ); # all maps
		142	our $LINK_MAP; # the special {link} map, which is always available
48		143
49	our $UPTIME; $UPTIME ||= time;	144	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		146
52	our %PLAYER; # all users	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our %MAP; # all maps	148	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $LINK_MAP; # the special {link} map	149	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	150	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO; # coroutines bound to extensions	151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
57		159
58	binmode STDOUT;	160	binmode STDOUT;
59	binmode STDERR;	161	binmode STDERR;
60		162
61	# read virtual server time, if available	163	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
66	}	168	}
67		169
68	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		171
74	# a special map that is always available	172	mkdir $_
75	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		174
76	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
77		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
78	#############################################################################	183	#############################################################################
79		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
80	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
81		197
82	=over 4	198	=over 4
83		199
84	=item $cf::UPTIME	200	=item $cf::UPTIME
85		201
86	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.
87		218
88	=item $cf::RUNTIME	219	=item $cf::RUNTIME
89		220
90	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
91	every server tick.	222	every server tick.
92		223
93	=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
94		227
95	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		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
98	=item $cf::NOW	239	=item $cf::LOAD
99		240
100	The time of the last (current) server tick.	241	The raw value load value from the last tick.
101
102	=item $cf::TICK
103
104	The interval between server ticks, in seconds.
105		242
106	=item %cf::CFG	243	=item %cf::CFG
107		244
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	246	from wherever your confdir points to.
110		247
		248	=item cf::wait_for_tick, cf::wait_for_tick_begin
		249
		250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		251	returns directly I<after> the tick processing (and consequently, can only wake one thread
		252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
		282
111	=back	283	=back
112		284
113	=cut	285	=cut
114		286
115	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
116	*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 {
117	my $msg = join "", @_;	294	my $msg = join "", @_;
118	utf8::encode $msg;
119		295
120	$msg .= "\n"	296	$msg .= "\n"
121	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
122		298
		299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		300
123	LOG llevError, $msg;	301	LOG llevWarn, $msg;
124	};	302	};
125	}	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	};
126		317
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		325
134	# 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
135	# within the Safe compartment.	327	# within the Safe compartment.
136	for my $pkg (qw(	328	for my $pkg (qw(
137	cf::global cf::attachable	329	cf::global cf::attachable
138	cf::object cf::object::player	330	cf::object cf::object::player
139	cf::client cf::player	331	cf::client cf::player
140	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
141	cf::map cf::party cf::region	334	cf::party cf::region
142	)) {	335	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	337	}
146		338
147	$Event::DIED = sub {	339	$EV::DIED = sub {
148	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
149	};	341	};
150		342
151	my %ext_pkg;	343	#############################################################################
152	my @exts;	344
153	my @hook;	345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
154		349
155	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
156		351
157	=over 4	352	=over 4
158		353
159	=cut	354	=item dumpval $ref
160		355
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	356	=cut
162		357
		358	sub dumpval {
		359	eval {
		360	local $SIG{__DIE__};
		361	my $d;
		362	if (1) {
		363	$d = new Data::Dumper([$_[0]], ["*var"]);
		364	$d->Terse(1);
		365	$d->Indent(2);
		366	$d->Quotekeys(0);
		367	$d->Useqq(1);
		368	#$d->Bless(...);
		369	$d->Seen($_[1]) if @_ > 1;
		370	$d = $d->Dump();
		371	}
		372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		373	$d
		374	} || "[unable to dump $_[0]: '$@']";
		375	}
		376
		377	=item $scalar = load_file $path
		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
163	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
164		392
165	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
166		394
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	395	=item $json = cf::encode_json $ref
175		396
176	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
177		398
178	=cut	399	=cut
179		400
180	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	402
182	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	}
183	}	466	}
184		467
185	=item cf::lock_wait $string	468	=item cf::lock_wait $string
186		469
187	Wait until the given lock is available. See cf::lock_acquire.	470	Wait until the given lock is available. See cf::lock_acquire.
188		471
189	=item my $lock = cf::lock_acquire $string	472	=item my $lock = cf::lock_acquire $string
190		473
191	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
192	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,
193	for example when the coroutine gets canceled), the lock is automatically	476	for example when the coroutine gets canceled), the lock is automatically
194	returned.	477	returned.
195		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
196	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
197	uses map_find and cf::map::load uses map_load).	483	uses map_find and cf::map::load uses map_load).
198		484
199	=cut	485	=item $locked = cf::lock_active $string
200		486
201	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;
202		492
203	sub lock_wait($) {	493	sub lock_wait($) {
204	my ($key) = @_;	494	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	495	}
212		496
213	sub lock_acquire($) {	497	sub lock_acquire($) {
214	my ($key) = @_;	498	$LOCKS->guard ($_[0])
		499	}
215		500
216	# wait, to be sure we are not locked	501	sub lock_active($) {
217	lock_wait $key;	502	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	503	}
226		504
227	sub freeze_mainloop {	505	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	506	tick_inhibit_inc;
229		507
230	my $guard = Coro::guard { $TICK_WATCHER->start };	508	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	509	}
232	$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;
233	}	594	}
234		595
235	=item cf::async { BLOCK }	596	=item cf::async { BLOCK }
236		597
237	Currently the same as Coro::async_pool, meaning you cannot use	598	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		603
243	BEGIN { *async = \&Coro::async_pool }	604	BEGIN { *async = \&Coro::async_pool }
244		605
245	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
246		607
247	The design of crossfire+ requires that the main coro ($Coro::main) is	608	The design of Deliantra requires that the main coroutine ($Coro::main)
248	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
249	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.
250		612
251	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
252	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
253	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
254	fast or be very important.	616	fast or be very important.
…		…
256	=cut	618	=cut
257		619
258	sub sync_job(&) {	620	sub sync_job(&) {
259	my ($job) = @_;	621	my ($job) = @_;
260		622
261	if ($Coro::current == $Coro::main) {	623	if (in_main) {
		624	my $time = AE::time;
		625
262	# this is the main coro, too bad, we have to block	626	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	627	# till the operation succeeds, freezing the server :/
264		628
265	# TODO: use suspend/resume instead	629	#LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	630
267	my $freeze_guard = freeze_mainloop;	631	my $freeze_guard = freeze_mainloop;
268		632
269	my $busy = 1;	633	my $busy = 1;
270	my @res;	634	my @res;
271		635
272	(async {	636	(async {
		637	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	638	@res = eval { $job->() };
274	warn $@ if $@;	639	error $@ if $@;
275	undef $busy;	640	undef $busy;
276	})->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
277		642
278	while ($busy) {	643	while ($busy) {
279	Coro::cede or Event::one_event;	644	if (Coro::nready) {
		645	Coro::cede_notself;
		646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
280	}	648	}
		649	}
		650
		651	my $time = AE::time - $time;
		652
		653	$TICK_START += $time; # do not account sync jobs to server load
281		654
282	wantarray ? @res : $res[0]	655	wantarray ? @res : $res[0]
283	} else {	656	} else {
284	# we are in another coroutine, how wonderful, everything just works	657	# we are in another coroutine, how wonderful, everything just works
285		658
…		…
287	}	660	}
288	}	661	}
289		662
290	=item $coro = cf::async_ext { BLOCK }	663	=item $coro = cf::async_ext { BLOCK }
291		664
292	Like async, but this coro is automcatially being canceled when the	665	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	666	extension calling this is being unloaded.
294		667
295	=cut	668	=cut
296		669
297	sub async_ext(&) {	670	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
306		679
307	$coro	680	$coro
308	}	681	}
309		682
310	sub write_runtime {	683	=item fork_call { }, @args
311	my $runtime = cf::localdir . "/runtime";
312		684
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	685	Executes the given code block with the given arguments in a seperate
314	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.
315		689
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	690	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		691
320	aio_fsync $fh	692	sub post_fork {
321	and return;	693	reset_signals;
		694	}
322		695
323	close $fh	696	sub fork_call(&@) {
324	or return;	697	my ($cb, @args) = @_;
325		698
326	aio_rename "$runtime~", $runtime	699	# we seemingly have to make a local copy of the whole thing,
327	and return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
328		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 {
329	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 });
330	}	886	}
331		887
332	=back	888	=back
333		889
334	=cut	890	=cut
335		891
336	#############################################################################	892	#############################################################################
337		893
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
459		895
460	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
461	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")
462	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
463		899
464	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>
465	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
466	crossfire+).	902	Deliantra).
467		903
468	=over 4	904	=over 4
469		905
470	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
471		907
…		…
515	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
516		952
517	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
518	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
519		955
520	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	957	that are attached at load/instantiate time, thus the need for a name.
522		958
523	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
524		960
525	=over 4	961	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	1022	our @CB_MAP = ();
587		1023
588	my %attachment;	1024	my %attachment;
589		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
590	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
592		1034
593	use sort 'stable';	1035	use sort 'stable';
594		1036
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
629		1071
630	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		1076
635	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
637		1079
638	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
643		1085
644	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
645	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
646		1088
647	} elsif (ref $type) {	1089	} elsif (ref $type) {
648	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
649		1091
650	} else {	1092	} else {
651	shift @arg;	1093	shift @arg;
652	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
653	}	1095	}
654	}	1096	}
655	}	1097	}
656		1098
657	sub _object_attach {	1099	sub _object_attach {
…		…
667	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
668	}	1110	}
669		1111
670	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
671	} else {	1113	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
673	}	1115	}
674		1116
675	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
676	}	1118	}
677		1119
…		…
679	if (ref $_[0]) {	1121	if (ref $_[0]) {
680	_object_attach @_;	1122	_object_attach @_;
681	} else {	1123	} else {
682	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
683	}	1125	}
		1126	_recalc_want;
684	};	1127	};
685		1128
686	# all those should be optimised	1129	# all those should be optimised
687	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1135	reattach ($obj);
693	} else {	1136	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
695	}	1138	}
		1139	_recalc_want;
696	};	1140	};
697		1141
698	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
700		1144
…		…
715	";	1159	";
716	die if $@;	1160	die if $@;
717	}	1161	}
718		1162
719	our $override;	1163	our $override;
720	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?
721		1165
722	sub override {	1166	sub override {
723	$override = 1;	1167	$override = 1;
724	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
725	}	1169	}
726		1170
727	sub do_invoke {	1171	sub do_invoke {
728	my $event = shift;	1172	my $event = shift;
729	my $callbacks = shift;	1173	my $callbacks = shift;
730		1174
731	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
732		1176
733	local $override;	1177	local $override;
734		1178
735	for (@$callbacks) {	1179	for (@$callbacks) {
736	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
737		1181
738	if ($@) {	1182	if ($@) {
739	warn "$@";
740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
741	override;	1184	override;
742	}	1185	}
743		1186
744	return 1 if $override;	1187	return 1 if $override;
745	}	1188	}
746		1189
747	0	1190	0
748	}	1191	}
749		1192
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1194
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1196
754	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
755		1198
756	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
757	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
758	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1202
760	=back	1203	=back
761		1204
762	=cut	1205	=cut
763		1206
764	#############################################################################	1207	#############################################################################
765	# 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	}
766		1251
767	sub reattach {	1252	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
769	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
770		1258
771	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
772		1260
773	@$registry = ();	1261	@$registry = ();
774		1262
…		…
779	for (@$attach) {	1267	for (@$attach) {
780	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
781	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
782	}	1270	}
783	} else {	1271	} else {
784	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
785	}	1273	}
786	}	1274	}
787	}	1275	}
788		1276
789	cf::attachable->attach (	1277	cf::attachable->attach (
790	prio => -1000000,	1278	prio => -1000000,
791	on_instantiate => sub {	1279	on_instantiate => sub {
792	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
793		1281
794	$data = from_json $data;	1282	$data = decode_json $data;
795		1283
796	for (@$data) {	1284	for (@$data) {
797	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
798		1286
799	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1303	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
817		1305
818	sync_job {	1306	sync_job {
819	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
822		1312
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$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;
826	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
827	close $fh;	1320	aio_close $fh;
828		1321
829	if (@$objs) {	1322	if (@$objs) {
830	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) {
831	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	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;
834	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
835	close $fh;	1331	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
837	}	1333	}
838	} else {	1334	} else {
839	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
840	}	1336	}
841		1337
842	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1342	} else {
844	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
845	}	1344	}
846	} else {	1345	} else {
847	aio_unlink $filename;	1346	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
849	}	1348	}
850	}	1349	};
851	}	1350	}
852		1351
853	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
855		1354
…		…
867	or return;	1366	or return;
868		1367
869	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
871	or return;	1370	or return;
		1371
872	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
873	}	1374	}
874		1375
		1376	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
877	return ($data, $av);	1381	($data, $av)
878	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
879		1389
880	#############################################################################	1390	#############################################################################
881	# command handling &c	1391	# command handling &c
882		1392
883	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1407	}
898		1408
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1410
901	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.
902		1416
903	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
904	called.	1418	called.
905		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
906	=cut	1431	=cut
907		1432
908	sub register_extcmd {	1433	sub register_extcmd {
909	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
910		1435
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1436	$EXTCMD{$name} = $cb;
915	}	1437	}
		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
916		1446
917	cf::player->attach (	1447	cf::player->attach (
918	on_command => sub {	1448	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
920		1450
921	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
922	or return;	1452	or return;
923		1453
…		…
928	cf::override;	1458	cf::override;
929	},	1459	},
930	on_extcmd => sub {	1460	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
932		1462
933	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1464
935	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1467
		1468	my @reply;
		1469
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1470	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1471	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1472	}
		1473
		1474	$pl->ext_reply ($reply, @reply)
		1475	if $reply;
		1476
941	} else {	1477	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1478	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1479	}
944		1480
945	cf::override;	1481	cf::override;
946	},	1482	},
947	);	1483	);
948		1484
949	sub register {	1485	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1486	sub cache_extensions {
956	my ($path) = @_;	1487	my $grp = IO::AIO::aio_group;
957		1488
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1489	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1490	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1491	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1492	}
1008	}	1493	};
1009		1494
1010	# remove extcmds	1495	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1496	}
1024		1497
1025	sub load_extensions {	1498	sub load_extensions {
		1499	info "loading extensions...";
		1500
		1501	cf::sync_job {
		1502	my %todo;
		1503
1026	for my $ext (<$LIBDIR/*.ext>) {	1504	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1505	next unless -r $path;
1028	eval {	1506
1029	load_extension $ext;	1507	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1508	my $base = $1;
		1509	my $pkg = $1;
		1510	$pkg =~ s/[^[:word:]]/_/g;
		1511	$pkg = "ext::$pkg";
		1512
		1513	open my $fh, "<:utf8", $path
		1514	or die "$path: $!";
		1515
		1516	my $source = do { local $/; <$fh> };
		1517
		1518	my %ext = (
		1519	path => $path,
		1520	base => $base,
		1521	pkg => $pkg,
		1522	);
		1523
		1524	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1525	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1526
		1527	$ext{source} =
		1528	"package $pkg; use common::sense;\n"
		1529	. "#line 1 \"$path\"\n{\n"
		1530	. $source
		1531	. "\n};\n1";
		1532
		1533	$todo{$base} = \%ext;
		1534	}
		1535
		1536	my $pass = 0;
		1537	my %done;
		1538	while (%todo) {
		1539	my $progress;
		1540
		1541	++$pass;
		1542
		1543	ext:
		1544	while (my ($k, $v) = each %todo) {
		1545	for (split /,\s*/, $v->{meta}{depends}) {
		1546	next ext
		1547	unless exists $done{$_};
		1548	}
		1549
		1550	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1551
		1552	my $active = eval $v->{source};
		1553
		1554	if (length $@) {
		1555	error "$v->{path}: $@\n";
		1556
		1557	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559
		1560	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1561	delete $todo{$k};
		1562	} else {
		1563	$done{$k} = delete $todo{$k};
		1564	push @EXTS, $v->{pkg};
		1565	$progress = 1;
		1566
		1567	info "$v->{base}: extension inactive.\n"
		1568	unless $active;
		1569	}
1030	1	1570	}
1031	} or warn "$ext not loaded: $@";	1571
		1572	unless ($progress) {
		1573	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1574
		1575	while (my ($k, $v) = each %todo) {
		1576	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1577	if exists $v->{meta}{mandatory};
		1578	}
		1579
		1580	last;
		1581	}
		1582	}
1032	}	1583	};
1033	}	1584	}
1034		1585
1035	#############################################################################	1586	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1587
1038	*cf::mapsupport::on_clean = sub {	1588	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1589
1073	=head2 CORE EXTENSIONS	1590	=head2 CORE EXTENSIONS
1074		1591
1075	Functions and methods that extend core crossfire objects.	1592	Functions and methods that extend core deliantra objects.
1076		1593
1077	=cut	1594	=cut
1078		1595
1079	package cf::player;	1596	package cf::player;
1080		1597
		1598	use Coro::AIO;
		1599
1081	=head3 cf::player	1600	=head3 cf::player
1082		1601
1083	=over 4	1602	=over 4
1084		1603
		1604	=item cf::player::num_playing
		1605
		1606	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1607
		1608	=cut
		1609
		1610	sub num_playing {
		1611	scalar grep
		1612	$_->ob->map
		1613	&& !$_->hidden
		1614	&& !$_->ob->flag (cf::FLAG_WIZ),
		1615	cf::player::list
		1616	}
		1617
1085	=item cf::player::find $login	1618	=item cf::player::find $login
1086		1619
1087	Returns the given player object, loading it if necessary (might block).	1620	Returns the given player object, loading it if necessary (might block).
1088		1621
1089	=cut	1622	=cut
1090		1623
1091	sub playerdir($) {	1624	sub playerdir($) {
1092	cf::localdir	1625	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1626	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1627	}
1098		1628
1099	sub path($) {	1629	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1630	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1631
1102	(playerdir $login) . "/$login.pl"	1632	(playerdir $login) . "/playerdata"
1103	}	1633	}
1104		1634
1105	sub find_active($) {	1635	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1636	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1637	and $cf::PLAYER{$_[0]}->active
…		…
1110		1640
1111	sub exists($) {	1641	sub exists($) {
1112	my ($login) = @_;	1642	my ($login) = @_;
1113		1643
1114	$cf::PLAYER{$login}	1644	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1645	or !aio_stat path $login
1116	}	1646	}
1117		1647
1118	sub find($) {	1648	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1649	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1650	my $login = $_[0];
1121		1651
1122	my $guard = cf::lock_acquire "user_find:$login";	1652	my $guard = cf::lock_acquire "user_find:$login";
1123		1653
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1654	$cf::PLAYER{$_[0]} || do {
		1655	# rename old playerfiles to new ones
		1656	#TODO: remove when no longer required
		1657	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1658	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1659	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1660	aio_unlink +(playerdir $login) . "/$login.pl";
		1661
		1662	my $f = new_from_file cf::object::thawer path $login
		1663	or return;
		1664
		1665	my $pl = cf::player::load_pl $f
		1666	or return;
		1667
		1668	local $cf::PLAYER_LOADING{$login} = $pl;
		1669	$f->resolve_delayed_derefs;
		1670	$cf::PLAYER{$login} = $pl
		1671	}
1125	};	1672	}
1126	}	1673	}
		1674
		1675	cf::player->attach (
		1676	on_load => sub {
		1677	my ($pl, $path) = @_;
		1678
		1679	# restore slots saved in save, below
		1680	my $slots = delete $pl->{_slots};
		1681
		1682	$pl->ob->current_weapon ($slots->[0]);
		1683	$pl->combat_ob ($slots->[1]);
		1684	$pl->ranged_ob ($slots->[2]);
		1685	},
		1686	);
1127		1687
1128	sub save($) {	1688	sub save($) {
1129	my ($pl) = @_;	1689	my ($pl) = @_;
1130		1690
1131	return if $pl->{deny_save};	1691	return if $pl->{deny_save};
…		…
1133	my $path = path $pl;	1693	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1694	my $guard = cf::lock_acquire "user_save:$path";
1135		1695
1136	return if $pl->{deny_save};	1696	return if $pl->{deny_save};
1137		1697
1138	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1698	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1699	$pl->{last_save} = $cf::RUNTIME;
1140		1700
		1701	cf::get_slot 0.01;
		1702
		1703	# save slots, to be restored later
		1704	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1705
1141	$pl->save_pl ($path);	1706	$pl->save_pl ($path);
1142	Coro::cede;	1707	cf::cede_to_tick;
1143	}	1708	}
1144		1709
1145	sub new($) {	1710	sub new($) {
1146	my ($login) = @_;	1711	my ($login) = @_;
1147		1712
…		…
1153	$cf::PLAYER{$login} = $self;	1718	$cf::PLAYER{$login} = $self;
1154		1719
1155	$self	1720	$self
1156	}	1721	}
1157		1722
		1723	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1724
		1725	=cut
		1726
		1727	sub send_msg {
		1728	my $ns = shift->ns
		1729	or return;
		1730	$ns->send_msg (@_);
		1731	}
		1732
		1733	=item $pl->quit_character
		1734
		1735	Nukes the player without looking back. If logged in, the connection will
		1736	be destroyed. May block for a long time.
		1737
		1738	=cut
		1739
1158	sub quit_character {	1740	sub quit_character {
1159	my ($pl) = @_;	1741	my ($pl) = @_;
1160		1742
		1743	my $name = $pl->ob->name;
		1744
1161	$pl->{deny_save} = 1;	1745	$pl->{deny_save} = 1;
1162	$pl->password ("*"); # this should lock out the player until we nuked the dir	1746	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1163		1747
1164	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1748	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1165	$pl->deactivate;	1749	$pl->deactivate;
		1750
		1751	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1166	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1752	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1753	ext::highscore::check ($pl->ob);
		1754
1167	$pl->ns->destroy if $pl->ns;	1755	$pl->ns->destroy if $pl->ns;
1168		1756
1169	my $path = playerdir $pl;	1757	my $path = playerdir $pl;
1170	my $temp = "$path~$cf::RUNTIME~deleting~";	1758	my $temp = "$path~$cf::RUNTIME~deleting~";
1171	IO::AIO::aio_rename $path, $temp, sub {	1759	aio_rename $path, $temp;
1172	delete $cf::PLAYER{$pl->ob->name};	1760	delete $cf::PLAYER{$pl->ob->name};
1173	$pl->destroy;	1761	$pl->destroy;
1174		1762
		1763	my $prefix = qr<^~\Q$name\E/>;
		1764
		1765	# nuke player maps
		1766	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1767
1175	IO::AIO::aio_rmtree $temp;	1768	IO::AIO::aio_rmtree $temp;
		1769	}
		1770
		1771	=item $pl->kick
		1772
		1773	Kicks a player out of the game. This destroys the connection.
		1774
		1775	=cut
		1776
		1777	sub kick {
		1778	my ($pl, $kicker) = @_;
		1779
		1780	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1781	$pl->killer ("kicked");
		1782	$pl->ns->destroy;
		1783	}
		1784
		1785	=item cf::player::list_logins
		1786
		1787	Returns am arrayref of all valid playernames in the system, can take a
		1788	while and may block, so not sync_job-capable, ever.
		1789
		1790	=cut
		1791
		1792	sub list_logins {
		1793	my $dirs = aio_readdir $PLAYERDIR
		1794	or return [];
		1795
		1796	my @logins;
		1797
		1798	for my $login (@$dirs) {
		1799	my $path = path $login;
		1800
		1801	# a .pst is a dead give-away for a valid player
		1802	# if no pst file found, open and chekc for blocked users
		1803	if (aio_stat "$path.pst") {
		1804	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1805	aio_read $fh, 0, 512, my $buf, 0 or next;
		1806	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1807	}
		1808
		1809	utf8::decode $login;
		1810	push @logins, $login;
1176	};	1811	}
1177	}
1178		1812
		1813	\@logins
		1814	}
		1815
		1816	=item $player->maps
		1817
		1818	=item cf::player::maps $login
		1819
		1820	Returns an arrayref of map paths that are private for this
		1821	player. May block.
		1822
		1823	=cut
		1824
		1825	sub maps($) {
		1826	my ($pl) = @_;
		1827
		1828	$pl = ref $pl ? $pl->ob->name : $pl;
		1829
		1830	my $files = aio_readdir playerdir $pl
		1831	or return;
		1832
		1833	my @paths;
		1834
		1835	for (@$files) {
		1836	utf8::decode $_;
		1837	next if /\.(?:pl|pst)$/;
		1838	next unless /^$PATH_SEP/o;
		1839
		1840	push @paths, cf::map::normalise "~$pl/$_";
		1841	}
		1842
		1843	\@paths
		1844	}
		1845
		1846	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1847
		1848	Expand deliantra pod fragments into protocol xml.
		1849
1179	=item $player->ext_reply ($msgid, $msgtype, %msg)	1850	=item $player->ext_reply ($msgid, @msg)
1180		1851
1181	Sends an ext reply to the player.	1852	Sends an ext reply to the player.
1182		1853
1183	=cut	1854	=cut
1184		1855
1185	sub ext_reply($$$%) {	1856	sub ext_reply($$@) {
1186	my ($self, $id, %msg) = @_;	1857	my ($self, $id, @msg) = @_;
1187		1858
1188	$msg{msgid} = $id;	1859	$self->ns->ext_reply ($id, @msg)
1189
1190	$self->send ("ext " . cf::to_json \%msg);
1191	}	1860	}
1192		1861
1193	package cf;	1862	=item $player->ext_msg ($type, @msg)
		1863
		1864	Sends an ext event to the client.
		1865
		1866	=cut
		1867
		1868	sub ext_msg($$@) {
		1869	my ($self, $type, @msg) = @_;
		1870
		1871	$self->ns->ext_msg ($type, @msg);
		1872	}
		1873
		1874	=head3 cf::region
		1875
		1876	=over 4
		1877
		1878	=cut
		1879
		1880	package cf::region;
		1881
		1882	=item cf::region::find_by_path $path
		1883
		1884	Tries to decuce the likely region for a map knowing only its path.
		1885
		1886	=cut
		1887
		1888	sub find_by_path($) {
		1889	my ($path) = @_;
		1890
		1891	$path =~ s/^~[^\/]*//; # skip ~login
		1892
		1893	my ($match, $specificity);
		1894
		1895	for my $region (list) {
		1896	if ($region->{match} && $path =~ $region->{match}) {
		1897	($match, $specificity) = ($region, $region->specificity)
		1898	if $region->specificity > $specificity;
		1899	}
		1900	}
		1901
		1902	$match
		1903	}
1194		1904
1195	=back	1905	=back
1196
1197		1906
1198	=head3 cf::map	1907	=head3 cf::map
1199		1908
1200	=over 4	1909	=over 4
1201		1910
…		…
1204	package cf::map;	1913	package cf::map;
1205		1914
1206	use Fcntl;	1915	use Fcntl;
1207	use Coro::AIO;	1916	use Coro::AIO;
1208		1917
		1918	use overload
		1919	'""' => \&as_string,
		1920	fallback => 1;
		1921
1209	our $MAX_RESET = 3600;	1922	our $MAX_RESET = 3600;
1210	our $DEFAULT_RESET = 3000;	1923	our $DEFAULT_RESET = 3000;
1211		1924
1212	sub generate_random_map {	1925	sub generate_random_map {
		1926	my ($self, $rmp) = @_;
		1927
		1928	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1929
		1930	$self->_create_random_map ($rmp);
		1931	}
		1932
		1933	=item cf::map->register ($regex, $prio)
		1934
		1935	Register a handler for the map path matching the given regex at the
		1936	givne priority (higher is better, built-in handlers have priority 0, the
		1937	default).
		1938
		1939	=cut
		1940
		1941	sub register {
		1942	my (undef, $regex, $prio) = @_;
		1943	my $pkg = caller;
		1944
		1945	push @{"$pkg\::ISA"}, __PACKAGE__;
		1946
		1947	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1948	}
		1949
		1950	# also paths starting with '/'
		1951	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1952
		1953	sub thawer_merge {
		1954	my ($self, $merge) = @_;
		1955
		1956	# we have to keep some variables in memory intact
		1957	local $self->{path};
		1958	local $self->{load_path};
		1959
		1960	$self->SUPER::thawer_merge ($merge);
		1961	}
		1962
		1963	sub normalise {
1213	my ($path, $rmp) = @_;	1964	my ($path, $base) = @_;
1214		1965
1215	# mit "rum" bekleckern, nicht	1966	$path = "$path"; # make sure it's a string
1216	cf::map::_create_random_map	1967
		1968	$path =~ s/\.map$//;
		1969
		1970	# map plan:
		1971	#
		1972	# /! non-realised random map exit (special hack!)
		1973	# {... are special paths that are not being touched
		1974	# ?xxx/... are special absolute paths
		1975	# ?random/... random maps
		1976	# /... normal maps
		1977	# ~user/... per-player map of a specific user
		1978
		1979	$path =~ s/$PATH_SEP/\//go;
		1980
		1981	# treat it as relative path if it starts with
		1982	# something that looks reasonable
		1983	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1984	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1985
		1986	$base =~ s{[^/]+/?$}{};
		1987	$path = "$base/$path";
		1988	}
		1989
		1990	for ($path) {
		1991	redo if s{/\.?/}{/};
		1992	redo if s{/[^/]+/\.\./}{/};
		1993	}
		1994
1217	$path,	1995	$path
1218	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1219	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1220	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1221	$rmp->{exit_on_final_map},
1222	$rmp->{xsize}, $rmp->{ysize},
1223	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1224	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1225	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1226	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1227	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1228	(cf::region::find $rmp->{region})
1229	}	1996	}
1230		1997
1231	# and all this just because we cannot iterate over	1998	sub new_from_path {
1232	# all maps in C++...	1999	my (undef, $path, $base) = @_;
1233	sub change_all_map_light {	2000
		2001	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2002
		2003	$path = normalise $path, $base;
		2004
		2005	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2006	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2007	my $self = bless cf::map::new, $pkg;
		2008	$self->{path} = $path; $self->path ($path);
		2009	$self->init; # pass $1 etc.
		2010	return $self;
		2011	}
		2012	}
		2013
		2014	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2015	()
		2016	}
		2017
		2018	# may re-bless or do other evil things
		2019	sub init {
1234	my ($change) = @_;	2020	my ($self) = @_;
1235		2021
1236	$_->change_map_light ($change)	2022	$self
1237	for grep $_->outdoor, values %cf::MAP;
1238	}	2023	}
1239		2024
		2025	sub as_string {
		2026	my ($self) = @_;
		2027
		2028	"$self->{path}"
		2029	}
		2030
		2031	# the displayed name, this is a one way mapping
		2032	sub visible_name {
		2033	&as_string
		2034	}
		2035
		2036	# the original (read-only) location
		2037	sub load_path {
		2038	my ($self) = @_;
		2039
		2040	"$MAPDIR/$self->{path}.map"
		2041	}
		2042
		2043	# the temporary/swap location
		2044	sub save_path {
		2045	my ($self) = @_;
		2046
		2047	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2048	"$TMPDIR/$path.map"
		2049	}
		2050
		2051	# the unique path, undef == no special unique path
		2052	sub uniq_path {
		2053	my ($self) = @_;
		2054
		2055	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2056	"$UNIQUEDIR/$path"
		2057	}
		2058
		2059	sub decay_objects {
		2060	my ($self) = @_;
		2061
		2062	return if $self->{deny_reset};
		2063
		2064	$self->do_decay_objects;
		2065	}
		2066
		2067	sub unlink_save {
		2068	my ($self) = @_;
		2069
		2070	utf8::encode (my $save = $self->save_path);
		2071	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2072	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2073	}
		2074
1240	sub try_load_header($) {	2075	sub load_header_from($) {
1241	my ($path) = @_;	2076	my ($self, $path) = @_;
1242		2077
1243	utf8::encode $path;	2078	utf8::encode $path;
1244	aio_open $path, O_RDONLY, 0	2079	my $f = new_from_file cf::object::thawer $path
1245	or return;	2080	or return;
1246		2081
1247	my $map = cf::map::new	2082	$self->_load_header ($f)
1248	or return;	2083	or return;
1249		2084
1250	# for better error messages only, will be overwritten	2085	local $MAP_LOADING{$self->{path}} = $self;
1251	$map->path ($path);	2086	$f->resolve_delayed_derefs;
1252		2087
1253	$map->load_header ($path)	2088	$self->{load_path} = $path;
		2089
		2090	1
		2091	}
		2092
		2093	# used to laod the header of an original map
		2094	sub load_header_orig {
		2095	my ($self) = @_;
		2096
		2097	$self->load_header_from ($self->load_path)
		2098	}
		2099
		2100	# used to laod the header of an instantiated map
		2101	sub load_header_temp {
		2102	my ($self) = @_;
		2103
		2104	$self->load_header_from ($self->save_path)
		2105	}
		2106
		2107	# called after loading the header from an instantiated map
		2108	sub prepare_temp {
		2109	my ($self) = @_;
		2110
		2111	$self->last_access ((delete $self->{last_access})
		2112	|| $cf::RUNTIME); #d#
		2113	# safety
		2114	$self->{instantiate_time} = $cf::RUNTIME
		2115	if $self->{instantiate_time} > $cf::RUNTIME;
		2116	}
		2117
		2118	# called after loading the header from an original map
		2119	sub prepare_orig {
		2120	my ($self) = @_;
		2121
		2122	$self->{load_original} = 1;
		2123	$self->{instantiate_time} = $cf::RUNTIME;
		2124	$self->last_access ($cf::RUNTIME);
		2125	$self->instantiate;
		2126	}
		2127
		2128	sub load_header {
		2129	my ($self) = @_;
		2130
		2131	if ($self->load_header_temp) {
		2132	$self->prepare_temp;
		2133	} else {
		2134	$self->load_header_orig
1254	or return;	2135	or return;
		2136	$self->prepare_orig;
		2137	}
1255		2138
1256	$map->{load_path} = $path;	2139	$self->{deny_reset} = 1
		2140	if $self->no_reset;
1257		2141
1258	$map	2142	$self->default_region (cf::region::find_by_path $self->{path})
		2143	unless $self->default_region;
		2144
		2145	1
1259	}	2146	}
1260		2147
1261	sub find;	2148	sub find;
1262	sub find {	2149	sub find {
1263	my ($path, $origin) = @_;	2150	my ($path, $origin) = @_;
1264		2151
1265	#warn "find<$path,$origin>\n";#d#	2152	cf::cede_to_tick;
1266		2153
1267	$path = new cf::path $path, $origin && $origin->path;	2154	$path = normalise $path, $origin;
1268	my $key = $path->as_string;
1269		2155
1270	cf::lock_wait "map_find:$key";	2156	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1271
1272	$cf::MAP{$key} || do {
1273	my $guard = cf::lock_acquire "map_find:$key";	2157	my $guard2 = cf::lock_acquire "map_find:$path";
1274		2158
1275	# do it the slow way	2159	$cf::MAP{$path} || do {
1276	my $map = try_load_header $path->save_path;	2160	my $map = new_from_path cf::map $path
1277
1278	Coro::cede;
1279
1280	if ($map) {
1281	$map->last_access ((delete $map->{last_access})
1282	|| $cf::RUNTIME); #d#
1283	# safety
1284	$map->{instantiate_time} = $cf::RUNTIME
1285	if $map->{instantiate_time} > $cf::RUNTIME;
1286	} else {
1287	if (my $rmp = $path->random_map_params) {
1288	$map = generate_random_map $key, $rmp;
1289	} else {
1290	$map = try_load_header $path->load_path;
1291	}
1292
1293	$map or return;	2161	or return;
1294		2162
1295	$map->{load_original} = 1;
1296	$map->{instantiate_time} = $cf::RUNTIME;
1297	$map->last_access ($cf::RUNTIME);
1298	$map->instantiate;
1299
1300	# per-player maps become, after loading, normal maps
1301	$map->per_player (0) if $path->{user_rel};
1302	}
1303
1304	$map->path ($key);
1305	$map->{path} = $path;
1306	$map->{last_save} = $cf::RUNTIME;	2163	$map->{last_save} = $cf::RUNTIME;
1307		2164
1308	Coro::cede;	2165	$map->load_header
		2166	or return;
1309		2167
1310	if ($map->should_reset) {	2168	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2169	# doing this can freeze the server in a sync job, obviously
		2170	#$cf::WAIT_FOR_TICK->wait;
		2171	undef $guard2;
		2172	undef $guard1;
1311	$map->reset;	2173	$map->reset;
1312	undef $guard;
1313	$map = find $path	2174	return find $path;
1314	or return;
1315	}	2175	}
1316		2176
1317	$cf::MAP{$key} = $map	2177	$cf::MAP{$path} = $map
1318	}	2178	}
1319	}	2179	}
		2180
		2181	sub pre_load { }
		2182	#sub post_load { } # XS
1320		2183
1321	sub load {	2184	sub load {
1322	my ($self) = @_;	2185	my ($self) = @_;
1323		2186
		2187	local $self->{deny_reset} = 1; # loading can take a long time
		2188
1324	my $path = $self->{path};	2189	my $path = $self->{path};
		2190
		2191	{
1325	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2192	my $guard = cf::lock_acquire "map_data:$path";
1326		2193
1327	return if $self->in_memory != cf::MAP_SWAPPED;	2194	return unless $self->valid;
		2195	return unless $self->state == cf::MAP_SWAPPED;
1328		2196
1329	$self->in_memory (cf::MAP_LOADING);
1330
1331	$self->alloc;	2197	$self->alloc;
1332	$self->load_objects ($self->{load_path}, 1)	2198
		2199	$self->pre_load;
		2200	cf::cede_to_tick;
		2201
		2202	if (exists $self->{load_path}) {
		2203	my $f = new_from_file cf::object::thawer $self->{load_path};
		2204	$f->skip_block;
		2205	$self->_load_objects ($f)
1333	or return;	2206	or return;
1334		2207
1335	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2208	$self->post_load_original
1336	if delete $self->{load_original};	2209	if delete $self->{load_original};
1337		2210
1338	if (my $uniq = $path->uniq_path) {	2211	if (my $uniq = $self->uniq_path) {
1339	utf8::encode $uniq;	2212	utf8::encode $uniq;
1340	if (aio_open $uniq, O_RDONLY, 0) {	2213	unless (aio_stat $uniq) {
		2214	if (my $f = new_from_file cf::object::thawer $uniq) {
1341	$self->clear_unique_items;	2215	$self->clear_unique_items;
1342	$self->load_objects ($uniq, 0);	2216	$self->_load_objects ($f);
		2217	$f->resolve_delayed_derefs;
		2218	}
		2219	}
1343	}	2220	}
1344	}
1345		2221
1346	Coro::cede;	2222	$f->resolve_delayed_derefs;
		2223	} else {
		2224	$self->post_load_original
		2225	if delete $self->{load_original};
		2226	}
1347		2227
		2228	$self->state (cf::MAP_INACTIVE);
		2229
		2230	cf::cede_to_tick;
1348	# now do the right thing for maps	2231	# now do the right thing for maps
1349	$self->link_multipart_objects;	2232	$self->link_multipart_objects;
1350
1351	if ($self->{path}->is_style_map) {
1352	$self->{deny_save} = 1;
1353	$self->{deny_reset} = 1;
1354	} else {
1355	$self->fix_auto_apply;
1356	$self->decay_objects;
1357	$self->update_buttons;
1358	$self->set_darkness_map;
1359	$self->difficulty ($self->estimate_difficulty)	2233	$self->difficulty ($self->estimate_difficulty)
1360	unless $self->difficulty;	2234	unless $self->difficulty;
1361	$self->activate;	2235	cf::cede_to_tick;
		2236
		2237	unless ($self->{deny_activate}) {
		2238	$self->decay_objects;
		2239	$self->fix_auto_apply;
		2240	$self->update_buttons;
		2241	cf::cede_to_tick;
		2242	#$self->activate; # no longer activate maps automatically
		2243	}
		2244
		2245	$self->{last_save} = $cf::RUNTIME;
		2246	$self->last_access ($cf::RUNTIME);
		2247	}
		2248
		2249	$self->post_load;
		2250
1362	}	2251	1
		2252	}
1363		2253
1364	Coro::cede;	2254	# customize the map for a given player, i.e.
		2255	# return the _real_ map. used by e.g. per-player
		2256	# maps to change the path to ~playername/mappath
		2257	sub customise_for {
		2258	my ($self, $ob) = @_;
1365		2259
1366	$self->in_memory (cf::MAP_IN_MEMORY);	2260	return find "~" . $ob->name . "/" . $self->{path}
		2261	if $self->per_player;
		2262
		2263	# return find "?party/" . $ob->name . "/" . $self->{path}
		2264	# if $self->per_party;
		2265
		2266	$self
1367	}	2267	}
1368		2268
1369	sub find_sync {	2269	sub find_sync {
1370	my ($path, $origin) = @_;	2270	my ($path, $origin) = @_;
1371		2271
1372	cf::sync_job { cf::map::find $path, $origin }	2272	# it's a bug to call this from the main context
		2273	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2274	if $Coro::current == $Coro::main;
		2275
		2276	find $path, $origin
1373	}	2277	}
1374		2278
1375	sub do_load_sync {	2279	sub do_load_sync {
1376	my ($map) = @_;	2280	my ($map) = @_;
1377		2281
1378	cf::sync_job { $map->load };	2282	# it's a bug to call this from the main context
		2283	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2284	if $Coro::current == $Coro::main;
		2285
		2286	$map->load;
		2287	}
		2288
		2289	our %MAP_PREFETCH;
		2290	our $MAP_PREFETCHER = undef;
		2291
		2292	sub find_async {
		2293	my ($path, $origin, $load) = @_;
		2294
		2295	$path = normalise $path, $origin;
		2296
		2297	if (my $map = $cf::MAP{$path}) {
		2298	return $map if !$load || $map->linkable;
		2299	}
		2300
		2301	$MAP_PREFETCH{$path} |= $load;
		2302
		2303	$MAP_PREFETCHER ||= cf::async {
		2304	$Coro::current->{desc} = "map prefetcher";
		2305
		2306	while (%MAP_PREFETCH) {
		2307	while (my ($k, $v) = each %MAP_PREFETCH) {
		2308	if (my $map = find $k) {
		2309	$map->load if $v;
		2310	}
		2311
		2312	delete $MAP_PREFETCH{$k};
		2313	}
		2314	}
		2315	undef $MAP_PREFETCHER;
		2316	};
		2317	$MAP_PREFETCHER->prio (6);
		2318
		2319	()
		2320	}
		2321
		2322	# common code, used by both ->save and ->swapout
		2323	sub _save {
		2324	my ($self) = @_;
		2325
		2326	$self->{last_save} = $cf::RUNTIME;
		2327
		2328	return unless $self->dirty;
		2329
		2330	my $save = $self->save_path; utf8::encode $save;
		2331	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2332
		2333	$self->{load_path} = $save;
		2334
		2335	return if $self->{deny_save};
		2336
		2337	local $self->{last_access} = $self->last_access;#d#
		2338
		2339	cf::async {
		2340	$Coro::current->{desc} = "map player save";
		2341	$_->contr->save for $self->players;
		2342	};
		2343
		2344	cf::get_slot 0.02;
		2345
		2346	if ($uniq) {
		2347	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2348	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2349	} else {
		2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2351	}
1379	}	2352	}
1380		2353
1381	sub save {	2354	sub save {
1382	my ($self) = @_;	2355	my ($self) = @_;
1383		2356
1384	my $lock = cf::lock_acquire "map_data:" . $self->path;	2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
1385		2358
1386	$self->{last_save} = $cf::RUNTIME;	2359	$self->_save;
1387
1388	return unless $self->dirty;
1389
1390	my $save = $self->{path}->save_path; utf8::encode $save;
1391	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1392
1393	$self->{load_path} = $save;
1394
1395	return if $self->{deny_save};
1396
1397	local $self->{last_access} = $self->last_access;#d#
1398
1399	cf::async {
1400	$_->contr->save for $self->players;
1401	};
1402
1403	if ($uniq) {
1404	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1405	$self->save_objects ($uniq, cf::IO_UNIQUES);
1406	} else {
1407	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1408	}
1409	}	2360	}
1410		2361
1411	sub swap_out {	2362	sub swap_out {
1412	my ($self) = @_;	2363	my ($self) = @_;
1413		2364
1414	# save first because save cedes
1415	$self->save;
1416
1417	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1418		2366
		2367	return if !$self->linkable;
		2368	return if $self->{deny_save};
1419	return if $self->players;	2369	return if $self->players;
1420	return if $self->in_memory != cf::MAP_IN_MEMORY;
1421	return if $self->{deny_save};
1422		2370
		2371	# first deactivate the map and "unlink" it from the core
		2372	$self->deactivate;
		2373	$_->clear_links_to ($self) for values %cf::MAP;
		2374	$self->state (cf::MAP_SWAPPED);
		2375
		2376	# then atomically save
		2377	$self->_save;
		2378
		2379	# then free the map
1423	$self->clear;	2380	$self->clear;
1424	$self->in_memory (cf::MAP_SWAPPED);
1425	}	2381	}
1426		2382
1427	sub reset_at {	2383	sub reset_at {
1428	my ($self) = @_;	2384	my ($self) = @_;
1429		2385
1430	# TODO: safety, remove and allow resettable per-player maps	2386	# TODO: safety, remove and allow resettable per-player maps
1431	return 1e99 if $self->{path}{user_rel};
1432	return 1e99 if $self->{deny_reset};	2387	return 1e99 if $self->{deny_reset};
1433		2388
1434	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2389	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1435	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2390	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1436		2391
…		…
1441	my ($self) = @_;	2396	my ($self) = @_;
1442		2397
1443	$self->reset_at <= $cf::RUNTIME	2398	$self->reset_at <= $cf::RUNTIME
1444	}	2399	}
1445		2400
1446	sub unlink_save {
1447	my ($self) = @_;
1448
1449	utf8::encode (my $save = $self->{path}->save_path);
1450	aioreq_pri 3; IO::AIO::aio_unlink $save;
1451	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1452	}
1453
1454	sub rename {
1455	my ($self, $new_path) = @_;
1456
1457	$self->unlink_save;
1458
1459	delete $cf::MAP{$self->path};
1460	$self->{path} = new cf::path $new_path;
1461	$self->path ($self->{path}->as_string);
1462	$cf::MAP{$self->path} = $self;
1463
1464	$self->save;
1465	}
1466
1467	sub reset {	2401	sub reset {
1468	my ($self) = @_;	2402	my ($self) = @_;
1469		2403
1470	my $lock = cf::lock_acquire "map_data:" . $self->path;	2404	my $lock = cf::lock_acquire "map_data:$self->{path}";
1471		2405
1472	return if $self->players;	2406	return if $self->players;
1473	return if $self->{path}{user_rel};#d#
1474		2407
1475	warn "resetting map ", $self->path;#d#	2408	cf::trace "resetting map ", $self->path, "\n";
		2409
		2410	$self->state (cf::MAP_SWAPPED);
		2411
		2412	# need to save uniques path
		2413	unless ($self->{deny_save}) {
		2414	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2415
		2416	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2417	if $uniq;
		2418	}
1476		2419
1477	delete $cf::MAP{$self->path};	2420	delete $cf::MAP{$self->path};
1478		2421
		2422	$self->deactivate;
1479	$_->clear_links_to ($self) for values %cf::MAP;	2423	$_->clear_links_to ($self) for values %cf::MAP;
		2424	$self->clear;
1480		2425
1481	$self->unlink_save;	2426	$self->unlink_save;
1482	$self->destroy;	2427	$self->destroy;
1483	}	2428	}
1484		2429
1485	my $nuke_counter = "aaaa";	2430	my $nuke_counter = "aaaa";
1486		2431
1487	sub nuke {	2432	sub nuke {
1488	my ($self) = @_;	2433	my ($self) = @_;
1489		2434
		2435	{
		2436	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2437
		2438	delete $cf::MAP{$self->path};
		2439
		2440	$self->unlink_save;
		2441
		2442	bless $self, "cf::map::wrap";
		2443	delete $self->{deny_reset};
1490	$self->{deny_save} = 1;	2444	$self->{deny_save} = 1;
1491	$self->reset_timeout (1);	2445	$self->reset_timeout (1);
1492	$self->rename ("{nuke}/" . ($nuke_counter++));	2446	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2447
		2448	$cf::MAP{$self->path} = $self;
		2449	}
		2450
1493	$self->reset; # polite request, might not happen	2451	$self->reset; # polite request, might not happen
1494	}	2452	}
1495		2453
1496	sub customise_for {	2454	=item $maps = cf::map::tmp_maps
1497	my ($map, $ob) = @_;
1498		2455
1499	if ($map->per_player) {	2456	Returns an arrayref with all map paths of currently instantiated and saved
1500	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2457	maps. May block.
		2458
		2459	=cut
		2460
		2461	sub tmp_maps() {
1501	}	2462	[
1502		2463	map {
1503	$map	2464	utf8::decode $_;
		2465	/\.map$/
		2466	? normalise $_
		2467	: ()
		2468	} @{ aio_readdir $TMPDIR or [] }
		2469	]
1504	}	2470	}
1505		2471
1506	sub emergency_save {	2472	=item $maps = cf::map::random_maps
1507	my $freeze_guard = cf::freeze_mainloop;
1508		2473
1509	warn "enter emergency perl save\n";	2474	Returns an arrayref with all map paths of currently instantiated and saved
		2475	random maps. May block.
1510		2476
1511	cf::sync_job {	2477	=cut
1512	warn "begin emergency player save\n";
1513	$_->save for values %cf::PLAYER;
1514	warn "end emergency player save\n";
1515		2478
1516	warn "begin emergency map save\n";	2479	sub random_maps() {
1517	$_->save for values %cf::MAP;	2480	[
1518	warn "end emergency map save\n";	2481	map {
		2482	utf8::decode $_;
		2483	/\.map$/
		2484	? normalise "?random/$_"
		2485	: ()
		2486	} @{ aio_readdir $RANDOMDIR or [] }
		2487	]
		2488	}
		2489
		2490	=item cf::map::unique_maps
		2491
		2492	Returns an arrayref of paths of all shared maps that have
		2493	instantiated unique items. May block.
		2494
		2495	=cut
		2496
		2497	sub unique_maps() {
		2498	[
		2499	map {
		2500	utf8::decode $_;
		2501	s/\.map$//; # TODO future compatibility hack
		2502	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2503	? ()
		2504	: normalise $_
		2505	} @{ aio_readdir $UNIQUEDIR or [] }
		2506	]
		2507	}
		2508
		2509	=item cf::map::static_maps
		2510
		2511	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2512	file in the shared directory excluding F</styles> and F</editor>). May
		2513	block.
		2514
		2515	=cut
		2516
		2517	sub static_maps() {
		2518	my @dirs = "";
		2519	my @maps;
		2520
		2521	while (@dirs) {
		2522	my $dir = shift @dirs;
		2523
		2524	next if $dir eq "/styles" || $dir eq "/editor";
		2525
		2526	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2527	or return;
		2528
		2529	for (@$files) {
		2530	s/\.map$// or next;
		2531	utf8::decode $_;
		2532	push @maps, "$dir/$_";
		2533	}
		2534
		2535	push @dirs, map "$dir/$_", @$dirs;
1519	};	2536	}
1520		2537
1521	warn "leave emergency perl save\n";	2538	\@maps
		2539	}
		2540
		2541	=back
		2542
		2543	=head3 cf::object
		2544
		2545	=cut
		2546
		2547	package cf::object;
		2548
		2549	=over 4
		2550
		2551	=item $ob->inv_recursive
		2552
		2553	Returns the inventory of the object I<and> their inventories, recursively,
		2554	but I<not> the object itself.
		2555
		2556	=cut
		2557
		2558	sub inv_recursive_;
		2559	sub inv_recursive_ {
		2560	map { $_, inv_recursive_ $_->inv } @_
		2561	}
		2562
		2563	sub inv_recursive {
		2564	inv_recursive_ inv $_[0]
		2565	}
		2566
		2567	=item $ref = $ob->ref
		2568
		2569	Creates and returns a persistent reference to an object that can be stored as a string.
		2570
		2571	=item $ob = cf::object::deref ($refstring)
		2572
		2573	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2574	even if the object actually exists. May block.
		2575
		2576	=cut
		2577
		2578	sub deref {
		2579	my ($ref) = @_;
		2580
		2581	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2582	my ($uuid, $name) = ($1, $2);
		2583	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2584	or return;
		2585	$pl->ob->uuid eq $uuid
		2586	or return;
		2587
		2588	$pl->ob
		2589	} else {
		2590	warn "$ref: cannot resolve object reference\n";
		2591	undef
		2592	}
1522	}	2593	}
1523		2594
1524	package cf;	2595	package cf;
1525		2596
1526	=back	2597	=back
1527
1528		2598
1529	=head3 cf::object::player	2599	=head3 cf::object::player
1530		2600
1531	=over 4	2601	=over 4
1532		2602
…		…
1535	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2605	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1536	can be C<undef>. Does the right thing when the player is currently in a	2606	can be C<undef>. Does the right thing when the player is currently in a
1537	dialogue with the given NPC character.	2607	dialogue with the given NPC character.
1538		2608
1539	=cut	2609	=cut
		2610
		2611	our $SAY_CHANNEL = {
		2612	id => "say",
		2613	title => "Map",
		2614	reply => "say ",
		2615	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2616	};
		2617
		2618	our $CHAT_CHANNEL = {
		2619	id => "chat",
		2620	title => "Chat",
		2621	reply => "chat ",
		2622	tooltip => "Player chat and shouts, global to the server.",
		2623	};
1540		2624
1541	# rough implementation of a future "reply" method that works	2625	# rough implementation of a future "reply" method that works
1542	# with dialog boxes.	2626	# with dialog boxes.
1543	#TODO: the first argument must go, split into a $npc->reply_to ( method	2627	#TODO: the first argument must go, split into a $npc->reply_to ( method
1544	sub cf::object::player::reply($$$;$) {	2628	sub cf::object::player::reply($$$;$) {
…		…
1546		2630
1547	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2631	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1548		2632
1549	if ($self->{record_replies}) {	2633	if ($self->{record_replies}) {
1550	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2634	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2635
1551	} else {	2636	} else {
		2637	my $pl = $self->contr;
		2638
		2639	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2640	my $dialog = $pl->{npc_dialog};
		2641	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2642
		2643	} else {
1552	$msg = $npc->name . " says: $msg" if $npc;	2644	$msg = $npc->name . " says: $msg" if $npc;
1553	$self->message ($msg, $flags);	2645	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2646	}
1554	}	2647	}
		2648	}
		2649
		2650	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2651
		2652	=cut
		2653
		2654	sub cf::object::send_msg {
		2655	my $pl = shift->contr
		2656	or return;
		2657	$pl->send_msg (@_);
1555	}	2658	}
1556		2659
1557	=item $player_object->may ("access")	2660	=item $player_object->may ("access")
1558		2661
1559	Returns wether the given player is authorized to access resource "access"	2662	Returns wether the given player is authorized to access resource "access"
…		…
1572		2675
1573	=item $player_object->enter_link	2676	=item $player_object->enter_link
1574		2677
1575	Freezes the player and moves him/her to a special map (C<{link}>).	2678	Freezes the player and moves him/her to a special map (C<{link}>).
1576		2679
1577	The player should be reaosnably safe there for short amounts of time. You	2680	The player should be reasonably safe there for short amounts of time (e.g.
1578	I<MUST> call C<leave_link> as soon as possible, though.	2681	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2682	though, as the player cannot control the character while it is on the link
		2683	map.
		2684
		2685	Will never block.
1579		2686
1580	=item $player_object->leave_link ($map, $x, $y)	2687	=item $player_object->leave_link ($map, $x, $y)
1581		2688
1582	Moves the player out of the specila link map onto the given map. If the	2689	Moves the player out of the special C<{link}> map onto the specified
1583	map is not valid (or omitted), the player will be moved back to the	2690	map. If the map is not valid (or omitted), the player will be moved back
1584	location he/she was before the call to C<enter_link>, or, if that fails,	2691	to the location he/she was before the call to C<enter_link>, or, if that
1585	to the emergency map position.	2692	fails, to the emergency map position.
1586		2693
1587	Might block.	2694	Might block.
1588		2695
1589	=cut	2696	=cut
		2697
		2698	sub link_map {
		2699	unless ($LINK_MAP) {
		2700	$LINK_MAP = cf::map::find "{link}"
		2701	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2702	$LINK_MAP->load;
		2703	}
		2704
		2705	$LINK_MAP
		2706	}
1590		2707
1591	sub cf::object::player::enter_link {	2708	sub cf::object::player::enter_link {
1592	my ($self) = @_;	2709	my ($self) = @_;
1593		2710
1594	$self->deactivate_recursive;	2711	$self->deactivate_recursive;
1595		2712
1596	return if $self->map == $LINK_MAP;	2713	++$self->{_link_recursion};
		2714
		2715	return if UNIVERSAL::isa $self->map, "ext::map_link";
1597		2716
1598	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1599	if $self->map;	2718	if $self->map && $self->map->{path} ne "{link}";
1600		2719
1601	$self->enter_map ($LINK_MAP, 20, 20);	2720	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1602	}	2721	}
1603		2722
1604	sub cf::object::player::leave_link {	2723	sub cf::object::player::leave_link {
1605	my ($self, $map, $x, $y) = @_;	2724	my ($self, $map, $x, $y) = @_;
		2725
		2726	return unless $self->contr->active;
1606		2727
1607	my $link_pos = delete $self->{_link_pos};	2728	my $link_pos = delete $self->{_link_pos};
1608		2729
1609	unless ($map) {	2730	unless ($map) {
1610	# restore original map position	2731	# restore original map position
…		…
1621	($x, $y) = (-1, -1)	2742	($x, $y) = (-1, -1)
1622	unless (defined $x) && (defined $y);	2743	unless (defined $x) && (defined $y);
1623		2744
1624	# use -1 or undef as default coordinates, not 0, 0	2745	# use -1 or undef as default coordinates, not 0, 0
1625	($x, $y) = ($map->enter_x, $map->enter_y)	2746	($x, $y) = ($map->enter_x, $map->enter_y)
1626	if $x <=0 && $y <= 0;	2747	if $x <= 0 && $y <= 0;
1627		2748
1628	$map->load;	2749	$map->load;
1629		2750
1630	return unless $self->contr->active;	2751	return unless $self->contr->active;
		2752
		2753	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2754	if ($self->enter_map ($map, $x, $y)) {
		2755	# entering was successful
		2756	delete $self->{_link_recursion};
		2757	# only activate afterwards, to support waiting in hooks
1631	$self->activate_recursive;	2758	$self->activate_recursive;
1632	$self->enter_map ($map, $x, $y);
1633	}
1634
1635	cf::player->attach (
1636	on_logout => sub {
1637	my ($pl) = @_;
1638
1639	# abort map switching before logout
1640	if ($pl->ob->{_link_pos}) {
1641	cf::sync_job {
1642	$pl->ob->leave_link
1643	};
1644	}
1645	},	2759	}
1646	on_login => sub {
1647	my ($pl) = @_;
1648		2760
1649	# try to abort aborted map switching on player login :)	2761	}
1650	# should happen only on crashes
1651	if ($pl->ob->{_link_pos}) {
1652	$pl->ob->enter_link;
1653	(async {
1654	# we need this sleep as the login has a concurrent enter_exit running
1655	# and this sleep increases chances of the player not ending up in scorn
1656	$pl->ob->reply (undef,
1657	"There was an internal problem at your last logout, "
1658	. "the server will try to bring you to your intended destination in a second.",
1659	cf::NDI_RED);
1660	Coro::Timer::sleep 1;
1661	$pl->ob->leave_link;
1662	})->prio (2);
1663	}
1664	},
1665	);
1666		2762
1667	=item $player_object->goto ($path, $x, $y)	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1668		2764
		2765	Moves the player to the given map-path and coordinates by first freezing
		2766	her, loading and preparing them map, calling the provided $check callback
		2767	that has to return the map if sucecssful, and then unfreezes the player on
		2768	the new (success) or old (failed) map position. In either case, $done will
		2769	be called at the end of this process.
		2770
		2771	Note that $check will be called with a potentially non-loaded map, so if
		2772	it needs a loaded map it has to call C<< ->load >>.
		2773
1669	=cut	2774	=cut
		2775
		2776	our $GOTOGEN;
1670		2777
1671	sub cf::object::player::goto {	2778	sub cf::object::player::goto {
1672	my ($self, $path, $x, $y) = @_;	2779	my ($self, $path, $x, $y, $check, $done) = @_;
		2780
		2781	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2782	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2783	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2784	($path, $x, $y) = @$EMERGENCY_POSITION;
		2785	}
		2786
		2787	# do generation counting so two concurrent goto's will be executed in-order
		2788	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1673		2789
1674	$self->enter_link;	2790	$self->enter_link;
1675		2791
1676	(async {	2792	(async {
1677	$path = new cf::path $path;	2793	$Coro::current->{desc} = "player::goto $path $x $y";
1678		2794
1679	my $map = cf::map::find $path->as_string;	2795	# *tag paths override both path and x|y
		2796	if ($path =~ /^\*(.*)$/) {
		2797	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2798	my $ob = $obs[rand @obs];
		2799
		2800	# see if we actually can go there
		2801	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2802	$ob = $obs[rand @obs];
		2803	} else {
		2804	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2805	}
		2806	# else put us there anyways for now #d#
		2807
		2808	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2809	} else {
		2810	($path, $x, $y) = (undef, undef, undef);
		2811	}
		2812	}
		2813
		2814	my $map = eval {
		2815	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2816
		2817	if ($map) {
1680	$map = $map->customise_for ($self) if $map;	2818	$map = $map->customise_for ($self);
1681		2819	$map = $check->($map, $x, $y, $self) if $check && $map;
1682	# warn "entering ", $map->path, " at ($x, $y)\n"	2820	} else {
1683	# if $map;
1684
1685	$map or $map->cluck ("oy");#d#
1686	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2821	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2822	}
1687		2823
		2824	$map
		2825	};
		2826
		2827	if ($@) {
		2828	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2829	LOG llevError | logBacktrace, Carp::longmess $@;
		2830	}
		2831
		2832	if ($gen == $self->{_goto_generation}) {
		2833	delete $self->{_goto_generation};
1688	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
		2835	}
		2836
		2837	$done->($self) if $done;
1689	})->prio (1);	2838	})->prio (1);
1690	}	2839	}
1691		2840
1692	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
1693		2842
…		…
1695		2844
1696	sub parse_random_map_params {	2845	sub parse_random_map_params {
1697	my ($spec) = @_;	2846	my ($spec) = @_;
1698		2847
1699	my $rmp = { # defaults	2848	my $rmp = { # defaults
1700	xsize => 10,	2849	xsize => (cf::rndm 15, 40),
1701	ysize => 10,	2850	ysize => (cf::rndm 15, 40),
		2851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2852	#layout => string,
1702	};	2853	};
1703		2854
1704	for (split /\n/, $spec) {	2855	for (split /\n/, $spec) {
1705	my ($k, $v) = split /\s+/, $_, 2;	2856	my ($k, $v) = split /\s+/, $_, 2;
1706		2857
…		…
1718	# that depends on the exit object	2869	# that depends on the exit object
1719		2870
1720	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
1721		2872
1722	if ($exit->map) {	2873	if ($exit->map) {
1723	$rmp->{region} = $exit->map->region_name;	2874	$rmp->{region} = $exit->region->name;
1724	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
1725	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
1726	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
1727	}	2880	}
1728		2881
1729	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
1730		2883
1731	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1732	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
		2886	my $meta = "$RANDOMDIR/$md5.meta";
1733		2887
1734	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1735	aio_write $fh, 0, (length $data), $data, 0;	2889	aio_write $fh, 0, (length $data), $data, 0;
		2890	undef $fh;
		2891	aio_rename "$meta~", $meta;
1736		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
1737	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
1738	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
1739	}	2899	}
1740	}	2900	}
1741		2901
1742	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
1743	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
…		…
1745	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
1746		2906
1747	$self->enter_link;	2907	$self->enter_link;
1748		2908
1749	(async {	2909	(async {
1750	$self->deactivate_recursive; # just to be sure	2910	$Coro::current->{desc} = "enter_exit";
		2911
1751	unless (eval {	2912	unless (eval {
		2913	$self->deactivate_recursive; # just to be sure
		2914
		2915	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2916	my $x = $exit->stats->hp;
		2917	my $y = $exit->stats->sp;
		2918
		2919	# special map handling
		2920	my $slaying = $exit->slaying;
		2921
		2922	# special map handling
		2923	if ($slaying eq "/!") {
		2924	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2925
1752	prepare_random_map $exit	2926	prepare_random_map $exit
		2927	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2928
1753	if $exit->slaying eq "/!";	2929	$map = $exit->slaying;
1754		2930
1755	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2931	} elsif ($slaying eq '!up') {
1756	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2932	$map = $exit->map->tile_path (cf::TILE_UP);
		2933	$x = $exit->x;
		2934	$y = $exit->y;
1757		2935
		2936	} elsif ($slaying eq '!down') {
		2937	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2938	$x = $exit->x;
		2939	$y = $exit->y;
		2940	}
		2941
		2942	$self->goto ($map, $x, $y);
		2943
		2944	# if exit is damned, update players death & WoR home-position
		2945	$self->contr->savebed ($map, $x, $y)
		2946	if $exit->flag (cf::FLAG_DAMNED);
		2947
1758	1;	2948	1
1759	}) {	2949	}) {
1760	$self->message ("Something went wrong deep within the crossfire server. "	2950	$self->message ("Something went wrong deep within the deliantra server. "
1761	. "I'll try to bring you back to the map you were before. "	2951	. "I'll try to bring you back to the map you were before. "
1762	. "Please report this to the dungeon master",	2952	. "Please report this to the dungeon master!",
1763	cf::NDI_UNIQUE | cf::NDI_RED);	2953	cf::NDI_UNIQUE | cf::NDI_RED);
1764		2954
1765	warn "ERROR in enter_exit: $@";	2955	error "ERROR in enter_exit: $@";
1766	$self->leave_link;	2956	$self->leave_link;
1767	}	2957	}
1768	})->prio (1);	2958	})->prio (1);
1769	}	2959	}
1770		2960
…		…
1781		2971
1782	sub cf::client::send_drawinfo {	2972	sub cf::client::send_drawinfo {
1783	my ($self, $text, $flags) = @_;	2973	my ($self, $text, $flags) = @_;
1784		2974
1785	utf8::encode $text;	2975	utf8::encode $text;
1786	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2976	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1787	}	2977	}
1788		2978
		2979	=item $client->send_big_packet ($pkt)
		2980
		2981	Like C<send_packet>, but tries to compress large packets, and fragments
		2982	them as required.
		2983
		2984	=cut
		2985
		2986	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2987
		2988	sub cf::client::send_big_packet {
		2989	my ($self, $pkt) = @_;
		2990
		2991	# try lzf for large packets
		2992	$pkt = "lzf " . Compress::LZF::compress $pkt
		2993	if 1024 <= length $pkt and $self->{can_lzf};
		2994
		2995	# split very large packets
		2996	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2997	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2998	$pkt = "frag";
		2999	}
		3000
		3001	$self->send_packet ($pkt);
		3002	}
		3003
		3004	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3005
		3006	Send a drawinfo or msg packet to the client, formatting the msg for the
		3007	client if neccessary. C<$type> should be a string identifying the type of
		3008	the message, with C<log> being the default. If C<$color> is negative, suppress
		3009	the message unless the client supports the msg packet.
		3010
		3011	=cut
		3012
		3013	# non-persistent channels (usually the info channel)
		3014	our %CHANNEL = (
		3015	"c/motd" => {
		3016	id => "infobox",
		3017	title => "MOTD",
		3018	reply => undef,
		3019	tooltip => "The message of the day",
		3020	},
		3021	"c/identify" => {
		3022	id => "infobox",
		3023	title => "Identify",
		3024	reply => undef,
		3025	tooltip => "Items recently identified",
		3026	},
		3027	"c/examine" => {
		3028	id => "infobox",
		3029	title => "Examine",
		3030	reply => undef,
		3031	tooltip => "Signs and other items you examined",
		3032	},
		3033	"c/shopinfo" => {
		3034	id => "infobox",
		3035	title => "Shop Info",
		3036	reply => undef,
		3037	tooltip => "What your bargaining skill tells you about the shop",
		3038	},
		3039	"c/book" => {
		3040	id => "infobox",
		3041	title => "Book",
		3042	reply => undef,
		3043	tooltip => "The contents of a note or book",
		3044	},
		3045	"c/lookat" => {
		3046	id => "infobox",
		3047	title => "Look",
		3048	reply => undef,
		3049	tooltip => "What you saw there",
		3050	},
		3051	"c/who" => {
		3052	id => "infobox",
		3053	title => "Players",
		3054	reply => undef,
		3055	tooltip => "Shows players who are currently online",
		3056	},
		3057	"c/body" => {
		3058	id => "infobox",
		3059	title => "Body Parts",
		3060	reply => undef,
		3061	tooltip => "Shows which body parts you posess and are available",
		3062	},
		3063	"c/statistics" => {
		3064	id => "infobox",
		3065	title => "Statistics",
		3066	reply => undef,
		3067	tooltip => "Shows your primary statistics",
		3068	},
		3069	"c/skills" => {
		3070	id => "infobox",
		3071	title => "Skills",
		3072	reply => undef,
		3073	tooltip => "Shows your experience per skill and item power",
		3074	},
		3075	"c/shopitems" => {
		3076	id => "infobox",
		3077	title => "Shop Items",
		3078	reply => undef,
		3079	tooltip => "Shows the items currently for sale in this shop",
		3080	},
		3081	"c/resistances" => {
		3082	id => "infobox",
		3083	title => "Resistances",
		3084	reply => undef,
		3085	tooltip => "Shows your resistances",
		3086	},
		3087	"c/pets" => {
		3088	id => "infobox",
		3089	title => "Pets",
		3090	reply => undef,
		3091	tooltip => "Shows information abotu your pets/a specific pet",
		3092	},
		3093	"c/perceiveself" => {
		3094	id => "infobox",
		3095	title => "Perceive Self",
		3096	reply => undef,
		3097	tooltip => "You gained detailed knowledge about yourself",
		3098	},
		3099	"c/uptime" => {
		3100	id => "infobox",
		3101	title => "Uptime",
		3102	reply => undef,
		3103	tooltip => "How long the server has been running since last restart",
		3104	},
		3105	"c/mapinfo" => {
		3106	id => "infobox",
		3107	title => "Map Info",
		3108	reply => undef,
		3109	tooltip => "Information related to the maps",
		3110	},
		3111	"c/party" => {
		3112	id => "party",
		3113	title => "Party",
		3114	reply => "gsay ",
		3115	tooltip => "Messages and chat related to your party",
		3116	},
		3117	"c/death" => {
		3118	id => "death",
		3119	title => "Death",
		3120	reply => undef,
		3121	tooltip => "Reason for and more info about your most recent death",
		3122	},
		3123	"c/say" => $SAY_CHANNEL,
		3124	"c/chat" => $CHAT_CHANNEL,
		3125	);
		3126
		3127	sub cf::client::send_msg {
		3128	my ($self, $channel, $msg, $color, @extra) = @_;
		3129
		3130	$msg = $self->pl->expand_cfpod ($msg)
		3131	unless $color & cf::NDI_VERBATIM;
		3132
		3133	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3134
		3135	# check predefined channels, for the benefit of C
		3136	if ($CHANNEL{$channel}) {
		3137	$channel = $CHANNEL{$channel};
		3138
		3139	$self->ext_msg (channel_info => $channel);
		3140	$channel = $channel->{id};
		3141
		3142	} elsif (ref $channel) {
		3143	# send meta info to client, if not yet sent
		3144	unless (exists $self->{channel}{$channel->{id}}) {
		3145	$self->{channel}{$channel->{id}} = $channel;
		3146	$self->ext_msg (channel_info => $channel);
		3147	}
		3148
		3149	$channel = $channel->{id};
		3150	}
		3151
		3152	return unless @extra || length $msg;
		3153
		3154	# default colour, mask it out
		3155	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3156	if $color & cf::NDI_DEF;
		3157
		3158	my $pkt = "msg "
		3159	. $self->{json_coder}->encode (
		3160	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3161	);
		3162
		3163	$self->send_big_packet ($pkt);
		3164	}
		3165
		3166	=item $client->ext_msg ($type, @msg)
		3167
		3168	Sends an ext event to the client.
		3169
		3170	=cut
		3171
		3172	sub cf::client::ext_msg($$@) {
		3173	my ($self, $type, @msg) = @_;
		3174
		3175	if ($self->extcmd == 2) {
		3176	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3177	} elsif ($self->extcmd == 1) { # TODO: remove
		3178	push @msg, msgtype => "event_$type";
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3180	}
		3181	}
		3182
		3183	=item $client->ext_reply ($msgid, @msg)
		3184
		3185	Sends an ext reply to the client.
		3186
		3187	=cut
		3188
		3189	sub cf::client::ext_reply($$@) {
		3190	my ($self, $id, @msg) = @_;
		3191
		3192	return unless $self->extcmd == 2;
		3193
		3194	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3195	}
1789		3196
1790	=item $success = $client->query ($flags, "text", \&cb)	3197	=item $success = $client->query ($flags, "text", \&cb)
1791		3198
1792	Queues a query to the client, calling the given callback with	3199	Queues a query to the client, calling the given callback with
1793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3200	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1794	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3201	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1795		3202
1796	Queries can fail, so check the return code. Or don't, as queries will become	3203	Queries can fail, so check the return code. Or don't, as queries will
1797	reliable at some point in the future.	3204	become reliable at some point in the future.
1798		3205
1799	=cut	3206	=cut
1800		3207
1801	sub cf::client::query {	3208	sub cf::client::query {
1802	my ($self, $flags, $text, $cb) = @_;	3209	my ($self, $flags, $text, $cb) = @_;
…		…
1810	utf8::encode $text;	3217	utf8::encode $text;
1811	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3218	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1812		3219
1813	$self->send_packet ($self->{query_queue}[0][0])	3220	$self->send_packet ($self->{query_queue}[0][0])
1814	if @{ $self->{query_queue} } == 1;	3221	if @{ $self->{query_queue} } == 1;
		3222
		3223	1
1815	}	3224	}
1816		3225
1817	cf::client->attach (	3226	cf::client->attach (
		3227	on_connect => sub {
		3228	my ($ns) = @_;
		3229
		3230	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3231	},
1818	on_reply => sub {	3232	on_reply => sub {
1819	my ($ns, $msg) = @_;	3233	my ($ns, $msg) = @_;
1820		3234
1821	# this weird shuffling is so that direct followup queries	3235	# this weird shuffling is so that direct followup queries
1822	# get handled first	3236	# get handled first
1823	my $queue = delete $ns->{query_queue}	3237	my $queue = delete $ns->{query_queue}
1824	or return; # be conservative, not sure how that can happen, but we saw a crash here	3238	or return; # be conservative, not sure how that can happen, but we saw a crash here
1825		3239
1826	(shift @$queue)->[1]->($msg);	3240	(shift @$queue)->[1]->($msg);
		3241	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1827		3242
1828	push @{ $ns->{query_queue} }, @$queue;	3243	push @{ $ns->{query_queue} }, @$queue;
1829		3244
1830	if (@{ $ns->{query_queue} } == @$queue) {	3245	if (@{ $ns->{query_queue} } == @$queue) {
1831	if (@$queue) {	3246	if (@$queue) {
…		…
1833	} else {	3248	} else {
1834	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3249	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1835	}	3250	}
1836	}	3251	}
1837	},	3252	},
		3253	on_exticmd => sub {
		3254	my ($ns, $buf) = @_;
		3255
		3256	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3257
		3258	if (ref $msg) {
		3259	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3260
		3261	my @reply;
		3262
		3263	if (my $cb = $EXTICMD{$type}) {
		3264	@reply = $cb->($ns, @payload);
		3265	}
		3266
		3267	$ns->ext_reply ($reply, @reply)
		3268	if $reply;
		3269
		3270	} else {
		3271	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3272	}
		3273
		3274	cf::override;
		3275	},
1838	);	3276	);
1839		3277
1840	=item $client->async (\&cb)	3278	=item $client->async (\&cb)
1841		3279
1842	Create a new coroutine, running the specified callback. The coroutine will	3280	Create a new coroutine, running the specified callback. The coroutine will
…		…
1858		3296
1859	$coro	3297	$coro
1860	}	3298	}
1861		3299
1862	cf::client->attach (	3300	cf::client->attach (
1863	on_destroy => sub {	3301	on_client_destroy => sub {
1864	my ($ns) = @_;	3302	my ($ns) = @_;
1865		3303
1866	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3304	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1867	},	3305	},
1868	);	3306	);
…		…
1883	our $safe = new Safe "safe";	3321	our $safe = new Safe "safe";
1884	our $safe_hole = new Safe::Hole;	3322	our $safe_hole = new Safe::Hole;
1885		3323
1886	$SIG{FPE} = 'IGNORE';	3324	$SIG{FPE} = 'IGNORE';
1887		3325
1888	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3326	$safe->permit_only (Opcode::opset qw(
		3327	:base_core :base_mem :base_orig :base_math :base_loop
		3328	grepstart grepwhile mapstart mapwhile
		3329	sort time
		3330	));
1889		3331
1890	# here we export the classes and methods available to script code	3332	# here we export the classes and methods available to script code
1891		3333
1892	=pod	3334	=pod
1893		3335
1894	The following fucntions and emthods are available within a safe environment:	3336	The following functions and methods are available within a safe environment:
1895		3337
1896	cf::object contr pay_amount pay_player map	3338	cf::object
		3339	contr pay_amount pay_player map x y force_find force_add destroy
		3340	insert remove name archname title slaying race decrease split
		3341	value
		3342
1897	cf::object::player player	3343	cf::object::player
1898	cf::player peaceful	3344	player
1899	cf::map trigger	3345
		3346	cf::player
		3347	peaceful
		3348
		3349	cf::map
		3350	trigger
1900		3351
1901	=cut	3352	=cut
1902		3353
1903	for (	3354	for (
1904	["cf::object" => qw(contr pay_amount pay_player map)],	3355	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3356	insert remove inv nrof name archname title slaying race
		3357	decrease split destroy change_exp value msg lore send_msg)],
1905	["cf::object::player" => qw(player)],	3358	["cf::object::player" => qw(player)],
1906	["cf::player" => qw(peaceful)],	3359	["cf::player" => qw(peaceful send_msg)],
1907	["cf::map" => qw(trigger)],	3360	["cf::map" => qw(trigger)],
1908	) {	3361	) {
1909	no strict 'refs';
1910	my ($pkg, @funs) = @$_;	3362	my ($pkg, @funs) = @$_;
1911	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3363	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1912	for @funs;	3364	for @funs;
1913	}	3365	}
1914		3366
…		…
1929		3381
1930	my $qcode = $code;	3382	my $qcode = $code;
1931	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3383	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1932	$qcode =~ s/\n/\\n/g;	3384	$qcode =~ s/\n/\\n/g;
1933		3385
		3386	%vars = (_dummy => 0) unless %vars;
		3387
		3388	my @res;
1934	local $_;	3389	local $_;
1935	local @safe::cf::_safe_eval_args = values %vars;
1936		3390
1937	my $eval =	3391	my $eval =
1938	"do {\n"	3392	"do {\n"
1939	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3393	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1940	. "#line 0 \"{$qcode}\"\n"	3394	. "#line 0 \"{$qcode}\"\n"
1941	. $code	3395	. $code
1942	. "\n}"	3396	. "\n}"
1943	;	3397	;
1944		3398
		3399	if ($CFG{safe_eval}) {
1945	sub_generation_inc;	3400	sub_generation_inc;
		3401	local @safe::cf::_safe_eval_args = values %vars;
1946	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3402	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1947	sub_generation_inc;	3403	sub_generation_inc;
		3404	} else {
		3405	local @cf::_safe_eval_args = values %vars;
		3406	@res = wantarray ? eval eval : scalar eval $eval;
		3407	}
1948		3408
1949	if ($@) {	3409	if ($@) {
1950	warn "$@";	3410	warn "$@",
1951	warn "while executing safe code '$code'\n";	3411	"while executing safe code '$code'\n",
1952	warn "with arguments " . (join " ", %vars) . "\n";	3412	"with arguments " . (join " ", %vars) . "\n";
1953	}	3413	}
1954		3414
1955	wantarray ? @res : $res[0]	3415	wantarray ? @res : $res[0]
1956	}	3416	}
1957		3417
…		…
1971	=cut	3431	=cut
1972		3432
1973	sub register_script_function {	3433	sub register_script_function {
1974	my ($fun, $cb) = @_;	3434	my ($fun, $cb) = @_;
1975		3435
1976	no strict 'refs';	3436	$fun = "safe::$fun" if $CFG{safe_eval};
1977	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3437	*$fun = $safe_hole->wrap ($cb);
1978	}	3438	}
1979		3439
1980	=back	3440	=back
1981		3441
1982	=cut	3442	=cut
1983		3443
1984	#############################################################################	3444	#############################################################################
		3445	# the server's init and main functions
1985		3446
1986	=head2 EXTENSION DATABASE SUPPORT	3447	sub load_facedata($) {
		3448	my ($path) = @_;
1987		3449
1988	Crossfire maintains a very simple database for extension use. It can	3450	# HACK to clear player env face cache, we need some signal framework
1989	currently store anything that can be serialised using Storable, which	3451	# for this (global event?)
1990	excludes objects.	3452	%ext::player_env::MUSIC_FACE_CACHE = ();
1991		3453
1992	The parameter C<$family> should best start with the name of the extension	3454	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1993	using it, it should be unique.
1994		3455
1995	=over 4	3456	trace "loading facedata from $path\n";
1996		3457
1997	=item $hashref = cf::db_get $family	3458	my $facedata = decode_storable load_file $path;
1998		3459
1999	Return a hashref for use by the extension C<$family>, which can be	3460	$facedata->{version} == 2
2000	modified. After modifications, you have to call C<cf::db_dirty> or	3461	or cf::cleanup "$path: version mismatch, cannot proceed.";
2001	C<cf::db_sync>.
2002		3462
2003	=item $value = cf::db_get $family => $key	3463	# patch in the exptable
2004		3464	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2005	Returns a single value from the database	3465	$facedata->{resource}{"res/exp_table"} = {
2006		3466	type => FT_RSRC,
2007	=item cf::db_put $family => $hashref	3467	data => $exp_table,
2008		3468	hash => (Digest::MD5::md5 $exp_table),
2009	Stores the given family hashref into the database. Updates are delayed, if
2010	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2011
2012	=item cf::db_put $family => $key => $value
2013
2014	Stores the given C<$value> in the family hash. Updates are delayed, if you
2015	want the data to be synced to disk immediately, use C<cf::db_sync>.
2016
2017	=item cf::db_dirty
2018
2019	Marks the database as dirty, to be updated at a later time.
2020
2021	=item cf::db_sync
2022
2023	Immediately write the database to disk I<if it is dirty>.
2024
2025	=cut
2026
2027	our $DB;
2028
2029	{
2030	my $path = cf::localdir . "/database.pst";
2031
2032	sub db_load() {
2033	$DB = stat $path ? Storable::retrieve $path : { };
2034	}
2035
2036	my $pid;
2037
2038	sub db_save() {
2039	waitpid $pid, 0 if $pid;
2040	if (0 == ($pid = fork)) {
2041	$DB->{_meta}{version} = 1;
2042	Storable::nstore $DB, "$path~";
2043	rename "$path~", $path;
2044	cf::_exit 0 if defined $pid;
2045	}
2046	}
2047
2048	my $dirty;
2049
2050	sub db_sync() {
2051	db_save if $dirty;
2052	undef $dirty;
2053	}
2054
2055	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2056	db_sync;
2057	});	3469	};
		3470	cf::cede_to_tick;
2058		3471
2059	sub db_dirty() {
2060	$dirty = 1;
2061	$idle->start;
2062	}	3472	{
		3473	my $faces = $facedata->{faceinfo};
2063		3474
2064	sub db_get($;$) {	3475	while (my ($face, $info) = each %$faces) {
2065	@_ >= 2	3476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2066	? $DB->{$_[0]}{$_[1]}
2067	: ($DB->{$_[0]} ||= { })
2068	}
2069		3477
2070	sub db_put($$;$) {	3478	cf::face::set_visibility $idx, $info->{visibility};
2071	if (@_ >= 3) {	3479	cf::face::set_magicmap $idx, $info->{magicmap};
2072	$DB->{$_[0]}{$_[1]} = $_[2];	3480	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2073	} else {	3481	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2074	$DB->{$_[0]} = $_[1];	3482	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2075	}
2076	db_dirty;
2077	}
2078		3483
2079	cf::global->attach (	3484	cf::cede_to_tick;
2080	prio => 10000,
2081	on_cleanup => sub {
2082	db_sync;
2083	},	3485	}
2084	);
2085	}
2086		3486
2087	#############################################################################	3487	while (my ($face, $info) = each %$faces) {
2088	# the server's main()	3488	next unless $info->{smooth};
2089		3489
2090	sub cfg_load {	3490	my $idx = cf::face::find $face
2091	open my $fh, "<:utf8", cf::confdir . "/config"	3491	or next;
2092	or return;
2093		3492
2094	local $/;	3493	if (my $smooth = cf::face::find $info->{smooth}) {
2095	*CFG = YAML::Syck::Load <$fh>;	3494	cf::face::set_smooth $idx, $smooth;
		3495	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3496	} else {
		3497	error "smooth face '$info->{smooth}' not found for face '$face'";
		3498	}
2096		3499
		3500	cf::cede_to_tick;
		3501	}
		3502	}
		3503
		3504	{
		3505	my $anims = $facedata->{animinfo};
		3506
		3507	while (my ($anim, $info) = each %$anims) {
		3508	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3509	cf::cede_to_tick;
		3510	}
		3511
		3512	cf::anim::invalidate_all; # d'oh
		3513	}
		3514
		3515	{
		3516	my $res = $facedata->{resource};
		3517
		3518	while (my ($name, $info) = each %$res) {
		3519	if (defined (my $type = delete $info->{type})) {
		3520	# TODO: different hash - must free and use new index, or cache ixface data queue
		3521	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3522
		3523	cf::face::set_data $idx, 0, delete $info->{data}, delete $info->{hash};
		3524	cf::face::set_type $idx, $type;
		3525	cf::face::set_meta $idx, (keys %$info && (~$type & 1)) ? $info : undef; # any keys left are stashed into meta unless prepended
		3526	} else {
		3527	# $RESOURCE{$name} = $info; # unused
		3528	}
		3529
		3530	cf::cede_to_tick;
		3531	}
		3532	}
		3533
		3534	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3535
		3536	1
		3537	}
		3538
		3539	register_exticmd fx_want => sub {
		3540	my ($ns, $want) = @_;
		3541
		3542	while (my ($k, $v) = each %$want) {
		3543	$ns->fx_want ($k, $v);
		3544	}
		3545	};
		3546
		3547	sub load_resource_file($) {
		3548	my $guard = lock_acquire "load_resource_file";
		3549
		3550	my $status = load_resource_file_ $_[0];
		3551	get_slot 0.1, 100;
		3552	cf::arch::commit_load;
		3553
		3554	$status
		3555	}
		3556
		3557	sub reload_regions {
		3558	# HACK to clear player env face cache, we need some signal framework
		3559	# for this (global event?)
		3560	%ext::player_env::MUSIC_FACE_CACHE = ();
		3561
		3562	load_resource_file "$MAPDIR/regions"
		3563	or die "unable to load regions file\n";
		3564
		3565	for (cf::region::list) {
		3566	$_->{match} = qr/$_->{match}/
		3567	if exists $_->{match};
		3568	}
		3569	}
		3570
		3571	sub reload_facedata {
		3572	load_facedata "$DATADIR/facedata"
		3573	or die "unable to load facedata\n";
		3574	}
		3575
		3576	sub reload_archetypes {
		3577	load_resource_file "$DATADIR/archetypes"
		3578	or die "unable to load archetypes\n";
		3579	}
		3580
		3581	sub reload_treasures {
		3582	load_resource_file "$DATADIR/treasures"
		3583	or die "unable to load treasurelists\n";
		3584	}
		3585
		3586	sub reload_sound {
		3587	trace "loading sound config from $DATADIR/sound\n";
		3588
		3589	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3590
		3591	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3592	my $sound = $soundconf->{compat}[$_]
		3593	or next;
		3594
		3595	my $face = cf::face::find "sound/$sound->[1]";
		3596	cf::sound::set $sound->[0] => $face;
		3597	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3598	}
		3599
		3600	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3601	my $face = cf::face::find "sound/$v";
		3602	cf::sound::set $k => $face;
		3603	}
		3604	}
		3605
		3606	sub reload_resources {
		3607	trace "reloading resource files...\n";
		3608
		3609	reload_exp_table;
		3610	reload_materials;
		3611	reload_facedata;
		3612	reload_sound;
		3613	reload_archetypes;
		3614	reload_regions;
		3615	reload_treasures;
		3616
		3617	trace "finished reloading resource files\n";
		3618	}
		3619
		3620	sub reload_config {
		3621	trace "reloading config file...\n";
		3622
		3623	my $config = load_file "$CONFDIR/config";
		3624	utf8::decode $config;
		3625	*CFG = decode_yaml $config;
		3626
2097	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3627	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2098		3628
2099	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3629	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2100	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3630	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2101		3631
2102	if (exists $CFG{mlockall}) {	3632	if (exists $CFG{mlockall}) {
…		…
2106	};	3636	};
2107	warn $@ if $@;	3637	warn $@ if $@;
2108	}	3638	}
2109	}	3639	}
2110		3640
		3641	sub pidfile() {
		3642	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3643	or die "$PIDFILE: $!";
		3644	flock $fh, &Fcntl::LOCK_EX
		3645	or die "$PIDFILE: flock: $!";
		3646	$fh
		3647	}
		3648
		3649	# make sure only one server instance is running at any one time
		3650	sub atomic {
		3651	my $fh = pidfile;
		3652
		3653	my $pid = <$fh>;
		3654	kill 9, $pid if $pid > 0;
		3655
		3656	seek $fh, 0, 0;
		3657	print $fh $$;
		3658	}
		3659
		3660	sub main_loop {
		3661	trace "EV::loop starting\n";
		3662	if (1) {
		3663	EV::loop;
		3664	}
		3665	trace "EV::loop returned\n";
		3666	goto &main_loop unless $REALLY_UNLOOP;
		3667	}
		3668
2111	sub main {	3669	sub main {
		3670	cf::init_globals; # initialise logging
		3671
		3672	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3673	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3674	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3675	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3676
		3677	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3678
2112	# we must not ever block the main coroutine	3679	# we must not ever block the main coroutine
2113	local $Coro::idle = sub {	3680	local $Coro::idle = sub {
2114	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3681	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2115	async { Event::one_event };	3682	(async {
		3683	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3684	EV::loop EV::LOOP_ONESHOT;
		3685	})->prio (Coro::PRIO_MAX);
2116	};	3686	};
2117		3687
2118	cfg_load;	3688	evthread_start IO::AIO::poll_fileno;
2119	db_load;	3689
		3690	cf::sync_job {
		3691	cf::incloader::init ();
		3692
		3693	cf::init_anim;
		3694	cf::init_attackmess;
		3695	cf::init_dynamic;
		3696
		3697	cf::load_settings;
		3698
		3699	reload_resources;
		3700	reload_config;
		3701	db_init;
		3702
		3703	cf::init_uuid;
		3704	cf::init_signals;
		3705	cf::init_skills;
		3706
		3707	cf::init_beforeplay;
		3708
		3709	atomic;
		3710
2120	load_extensions;	3711	load_extensions;
2121	Event::loop;	3712
		3713	utime time, time, $RUNTIMEFILE;
		3714
		3715	# no (long-running) fork's whatsoever before this point(!)
		3716	use POSIX ();
		3717	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3718
		3719	cf::_post_init 0;
		3720	};
		3721
		3722	cf::object::thawer::errors_are_fatal 0;
		3723	info "parse errors in files are no longer fatal from this point on.\n";
		3724
		3725	AE::postpone {
		3726	undef &main; # free gobs of memory :)
		3727	};
		3728
		3729	goto &main_loop;
2122	}	3730	}
2123		3731
2124	#############################################################################	3732	#############################################################################
2125	# initialisation	3733	# initialisation and cleanup
2126		3734
		3735	# install some emergency cleanup handlers
		3736	BEGIN {
		3737	our %SIGWATCHER = ();
		3738	for my $signal (qw(INT HUP TERM)) {
		3739	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3740	cf::cleanup "SIG$signal";
		3741	};
		3742	}
		3743	}
		3744
		3745	sub write_runtime_sync {
		3746	my $t0 = AE::time;
		3747
		3748	# first touch the runtime file to show we are still running:
		3749	# the fsync below can take a very very long time.
		3750
		3751	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3752
		3753	my $guard = cf::lock_acquire "write_runtime";
		3754
		3755	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3756	or return;
		3757
		3758	my $value = $cf::RUNTIME + 90 + 10;
		3759	# 10 is the runtime save interval, for a monotonic clock
		3760	# 60 allows for the watchdog to kill the server.
		3761
		3762	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3763	and return;
		3764
		3765	# always fsync - this file is important
		3766	aio_fsync $fh
		3767	and return;
		3768
		3769	# touch it again to show we are up-to-date
		3770	aio_utime $fh, undef, undef;
		3771
		3772	close $fh
		3773	or return;
		3774
		3775	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3776	and return;
		3777
		3778	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3779
		3780	1
		3781	}
		3782
		3783	our $uuid_lock;
		3784	our $uuid_skip;
		3785
		3786	sub write_uuid_sync($) {
		3787	$uuid_skip ||= $_[0];
		3788
		3789	return if $uuid_lock;
		3790	local $uuid_lock = 1;
		3791
		3792	my $uuid = "$LOCALDIR/uuid";
		3793
		3794	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3795	or return;
		3796
		3797	my $value = uuid_seq uuid_cur;
		3798
		3799	unless ($value) {
		3800	info "cowardly refusing to write zero uuid value!\n";
		3801	return;
		3802	}
		3803
		3804	my $value = uuid_str $value + $uuid_skip;
		3805	$uuid_skip = 0;
		3806
		3807	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3808	and return;
		3809
		3810	# always fsync - this file is important
		3811	aio_fsync $fh
		3812	and return;
		3813
		3814	close $fh
		3815	or return;
		3816
		3817	aio_rename "$uuid~", $uuid
		3818	and return;
		3819
		3820	trace "uuid file written ($value).\n";
		3821
		3822	1
		3823
		3824	}
		3825
		3826	sub write_uuid($$) {
		3827	my ($skip, $sync) = @_;
		3828
		3829	$sync ? write_uuid_sync $skip
		3830	: async { write_uuid_sync $skip };
		3831	}
		3832
		3833	sub emergency_save() {
		3834	my $freeze_guard = cf::freeze_mainloop;
		3835
		3836	info "emergency_perl_save: enter\n";
		3837
		3838	# this is a trade-off: we want to be very quick here, so
		3839	# save all maps without fsync, and later call a global sync
		3840	# (which in turn might be very very slow)
		3841	local $USE_FSYNC = 0;
		3842
		3843	cf::sync_job {
		3844	cf::write_runtime_sync; # external watchdog should not bark
		3845
		3846	# use a peculiar iteration method to avoid tripping on perl
		3847	# refcount bugs in for. also avoids problems with players
		3848	# and maps saved/destroyed asynchronously.
		3849	info "emergency_perl_save: begin player save\n";
		3850	for my $login (keys %cf::PLAYER) {
		3851	my $pl = $cf::PLAYER{$login} or next;
		3852	$pl->valid or next;
		3853	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3854	$pl->save;
		3855	}
		3856	info "emergency_perl_save: end player save\n";
		3857
		3858	cf::write_runtime_sync; # external watchdog should not bark
		3859
		3860	info "emergency_perl_save: begin map save\n";
		3861	for my $path (keys %cf::MAP) {
		3862	my $map = $cf::MAP{$path} or next;
		3863	$map->valid or next;
		3864	$map->save;
		3865	}
		3866	info "emergency_perl_save: end map save\n";
		3867
		3868	cf::write_runtime_sync; # external watchdog should not bark
		3869
		3870	info "emergency_perl_save: begin database checkpoint\n";
		3871	BDB::db_env_txn_checkpoint $DB_ENV;
		3872	info "emergency_perl_save: end database checkpoint\n";
		3873
		3874	info "emergency_perl_save: begin write uuid\n";
		3875	write_uuid_sync 1;
		3876	info "emergency_perl_save: end write uuid\n";
		3877
		3878	cf::write_runtime_sync; # external watchdog should not bark
		3879
		3880	trace "emergency_perl_save: syncing database to disk";
		3881	BDB::db_env_txn_checkpoint $DB_ENV;
		3882
		3883	info "emergency_perl_save: starting sync\n";
		3884	IO::AIO::aio_sync sub {
		3885	info "emergency_perl_save: finished sync\n";
		3886	};
		3887
		3888	cf::write_runtime_sync; # external watchdog should not bark
		3889
		3890	trace "emergency_perl_save: flushing outstanding aio requests";
		3891	while (IO::AIO::nreqs || BDB::nreqs) {
		3892	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3893	}
		3894
		3895	cf::write_runtime_sync; # external watchdog should not bark
		3896	};
		3897
		3898	info "emergency_perl_save: leave\n";
		3899	}
		3900
		3901	sub post_cleanup {
		3902	my ($make_core) = @_;
		3903
		3904	IO::AIO::flush;
		3905
		3906	error Carp::longmess "post_cleanup backtrace"
		3907	if $make_core;
		3908
		3909	my $fh = pidfile;
		3910	unlink $PIDFILE if <$fh> == $$;
		3911	}
		3912
		3913	# a safer delete_package, copied from Symbol
		3914	sub clear_package($) {
		3915	my $pkg = shift;
		3916
		3917	# expand to full symbol table name if needed
		3918	unless ($pkg =~ /^main::.*::$/) {
		3919	$pkg = "main$pkg" if $pkg =~ /^::/;
		3920	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3921	$pkg .= '::' unless $pkg =~ /::$/;
		3922	}
		3923
		3924	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3925	my $stem_symtab = *{$stem}{HASH};
		3926
		3927	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3928	or return;
		3929
		3930	# clear all symbols
		3931	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3932	for my $name (keys %$leaf_symtab) {
		3933	_gv_clear *{"$pkg$name"};
		3934	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3935	}
		3936	}
		3937
2127	sub reload() {	3938	sub do_reload_perl() {
2128	# can/must only be called in main	3939	# can/must only be called in main
2129	if ($Coro::current != $Coro::main) {	3940	unless (in_main) {
2130	warn "can only reload from main coroutine\n";	3941	error "can only reload from main coroutine";
2131	return;	3942	return;
2132	}	3943	}
2133		3944
2134	warn "reloading...";	3945	return if $RELOAD++;
2135		3946
2136	my $guard = freeze_mainloop;	3947	my $t1 = AE::time;
		3948
		3949	while ($RELOAD) {
		3950	cf::get_slot 0.1, -1, "reload_perl";
		3951	info "perl_reload: reloading...";
		3952
		3953	trace "perl_reload: entering sync_job";
		3954
		3955	cf::sync_job {
2137	cf::emergency_save;	3956	#cf::emergency_save;
2138		3957
2139	eval {	3958	trace "perl_reload: cancelling all extension coros";
2140	# if anything goes wrong in here, we should simply crash as we already saved
2141
2142	# cancel all watchers
2143	for (Event::all_watchers) {
2144	$_->cancel if $_->data & WF_AUTOCANCEL;
2145	}
2146
2147	# cancel all extension coros
2148	$_->cancel for values %EXT_CORO;	3959	$_->cancel for values %EXT_CORO;
2149	%EXT_CORO = ();	3960	%EXT_CORO = ();
2150		3961
2151	# unload all extensions	3962	trace "perl_reload: removing commands";
2152	for (@exts) {	3963	%COMMAND = ();
2153	warn "unloading <$_>";
2154	unload_extension $_;
2155	}
2156		3964
2157	# unload all modules loaded from $LIBDIR	3965	trace "perl_reload: removing ext/exti commands";
2158	while (my ($k, $v) = each %INC) {	3966	%EXTCMD = ();
2159	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3967	%EXTICMD = ();
2160		3968
2161	warn "removing <$k>";	3969	trace "perl_reload: unloading/nuking all extensions";
2162	delete $INC{$k};	3970	for my $pkg (@EXTS) {
		3971	trace "... unloading $pkg";
2163		3972
2164	$k =~ s/\.pm$//;
2165	$k =~ s/\//::/g;
2166
2167	if (my $cb = $k->can ("unload_module")) {	3973	if (my $cb = $pkg->can ("unload")) {
		3974	eval {
2168	$cb->();	3975	$cb->($pkg);
		3976	1
		3977	} or error "$pkg unloaded, but with errors: $@";
		3978	}
		3979
		3980	trace "... clearing $pkg";
		3981	clear_package $pkg;
2169	}	3982	}
2170		3983
2171	Symbol::delete_package $k;	3984	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3985	while (my ($k, $v) = each %INC) {
		3986	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3987
		3988	trace "... unloading $k";
		3989	delete $INC{$k};
		3990
		3991	$k =~ s/\.pm$//;
		3992	$k =~ s/\//::/g;
		3993
		3994	if (my $cb = $k->can ("unload_module")) {
		3995	$cb->();
		3996	}
		3997
		3998	clear_package $k;
2172	}	3999	}
2173		4000
2174	# sync database to disk
2175	cf::db_sync;
2176	IO::AIO::flush;
2177
2178	# get rid of safe::, as good as possible	4001	trace "perl_reload: getting rid of safe::, as good as possible";
2179	Symbol::delete_package "safe::$_"	4002	clear_package "safe::$_"
2180	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4003	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2181		4004
2182	# remove register_script_function callbacks	4005	trace "perl_reload: unloading cf.pm \"a bit\"";
2183	# TODO
2184
2185	# unload cf.pm "a bit"
2186	delete $INC{"cf.pm"};	4006	delete $INC{"cf.pm"};
		4007	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2187		4008
2188	# don't, removes xs symbols, too,	4009	# don't, removes xs symbols, too,
2189	# and global variables created in xs	4010	# and global variables created in xs
2190	#Symbol::delete_package __PACKAGE__;	4011	#clear_package __PACKAGE__;
2191		4012
2192	# reload cf.pm	4013	info "perl_reload: unload completed, starting to reload now";
2193	warn "reloading cf.pm";	4014
		4015	trace "perl_reload: reloading cf.pm";
2194	require cf;	4016	require cf;
2195	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4017	cf::_connect_to_perl_1;
2196		4018
2197	# load config and database again	4019	trace "perl_reload: loading config and database again";
2198	cf::cfg_load;	4020	cf::reload_config;
2199	cf::db_load;
2200		4021
2201	# load extensions	4022	trace "perl_reload: loading extensions";
2202	warn "load extensions";
2203	cf::load_extensions;	4023	cf::load_extensions;
2204		4024
2205	# reattach attachments to objects	4025	if ($REATTACH_ON_RELOAD) {
2206	warn "reattach";	4026	trace "perl_reload: reattaching attachments to objects/players";
2207	_global_reattach;	4027	_global_reattach; # objects, sockets
		4028	trace "perl_reload: reattaching attachments to maps";
2208	reattach $_ for values %MAP;	4029	reattach $_ for values %MAP;
		4030	trace "perl_reload: reattaching attachments to players";
		4031	reattach $_ for values %PLAYER;
		4032	}
		4033
		4034	cf::_post_init 1;
		4035
		4036	trace "perl_reload: leaving sync_job";
		4037
		4038	1
		4039	} or do {
		4040	error $@;
		4041	cf::cleanup "perl_reload: error, exiting.";
		4042	};
		4043
		4044	--$RELOAD;
		4045	}
		4046
		4047	$t1 = AE::time - $t1;
		4048	info "perl_reload: completed in ${t1}s\n";
		4049	};
		4050
		4051	our $RELOAD_WATCHER; # used only during reload
		4052
		4053	sub reload_perl() {
		4054	# doing reload synchronously and two reloads happen back-to-back,
		4055	# coro crashes during coro_state_free->destroy here.
		4056
		4057	$RELOAD_WATCHER ||= cf::async {
		4058	Coro::AIO::aio_wait cache_extensions;
		4059
		4060	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4061	do_reload_perl;
		4062	undef $RELOAD_WATCHER;
		4063	};
2209	};	4064	};
2210
2211	if ($@) {
2212	warn $@;
2213	warn "error while reloading, exiting.";
2214	exit 1;
2215	}
2216
2217	warn "reloaded successfully";
2218	};
2219
2220	#############################################################################
2221
2222	unless ($LINK_MAP) {
2223	$LINK_MAP = cf::map::new;
2224
2225	$LINK_MAP->width (41);
2226	$LINK_MAP->height (41);
2227	$LINK_MAP->alloc;
2228	$LINK_MAP->path ("{link}");
2229	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2230	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2231
2232	# dirty hack because... archetypes are not yet loaded
2233	Event->timer (
2234	after => 10,
2235	cb => sub {
2236	$_[0]->w->cancel;
2237
2238	# provide some exits "home"
2239	my $exit = cf::object::new "exit";
2240
2241	$exit->slaying ($EMERGENCY_POSITION->[0]);
2242	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2243	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2244
2245	$LINK_MAP->insert ($exit->clone, 19, 19);
2246	$LINK_MAP->insert ($exit->clone, 19, 20);
2247	$LINK_MAP->insert ($exit->clone, 19, 21);
2248	$LINK_MAP->insert ($exit->clone, 20, 19);
2249	$LINK_MAP->insert ($exit->clone, 20, 21);
2250	$LINK_MAP->insert ($exit->clone, 21, 19);
2251	$LINK_MAP->insert ($exit->clone, 21, 20);
2252	$LINK_MAP->insert ($exit->clone, 21, 21);
2253
2254	$exit->destroy;
2255	});
2256
2257	$LINK_MAP->{deny_save} = 1;
2258	$LINK_MAP->{deny_reset} = 1;
2259
2260	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2261	}	4065	}
2262
2263	register "<global>", __PACKAGE__;
2264		4066
2265	register_command "reload" => sub {	4067	register_command "reload" => sub {
2266	my ($who, $arg) = @_;	4068	my ($who, $arg) = @_;
2267		4069
2268	if ($who->flag (FLAG_WIZ)) {	4070	if ($who->flag (FLAG_WIZ)) {
2269	$who->message ("start of reload.");
2270	reload;
2271	$who->message ("end of reload.");	4071	$who->message ("reloading server.");
		4072	async {
		4073	$Coro::current->{desc} = "perl_reload";
		4074	reload_perl;
		4075	};
2272	}	4076	}
2273	};	4077	};
2274		4078
2275	unshift @INC, $LIBDIR;	4079	#############################################################################
2276		4080
2277	$TICK_WATCHER = Event->timer (	4081	my $bug_warning = 0;
2278	reentrant => 0,
2279	prio => 0,
2280	at => $NEXT_TICK || $TICK,
2281	data => WF_AUTOCANCEL,
2282	cb => sub {
2283	cf::server_tick; # one server iteration
2284	$RUNTIME += $TICK;
2285	$NEXT_TICK += $TICK;
2286		4082
2287	# if we are delayed by four ticks or more, skip them all	4083	sub wait_for_tick() {
2288	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4084	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2289		4085
2290	$TICK_WATCHER->at ($NEXT_TICK);	4086	$WAIT_FOR_TICK->wait;
2291	$TICK_WATCHER->start;	4087	}
		4088
		4089	sub wait_for_tick_begin() {
		4090	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4091
		4092	my $signal = new Coro::Signal;
		4093	push @WAIT_FOR_TICK_BEGIN, $signal;
		4094	$signal->wait;
		4095	}
		4096
		4097	sub tick {
		4098	if ($Coro::current != $Coro::main) {
		4099	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4100	unless ++$bug_warning > 10;
		4101	return;
2292	},	4102	}
2293	);
2294		4103
2295	IO::AIO::max_poll_time $TICK * 0.2;	4104	cf::one_tick; # one server iteration
2296		4105
2297	Event->io (	4106	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2298	fd => IO::AIO::poll_fileno,
2299	poll => 'r',
2300	prio => 5,
2301	data => WF_AUTOCANCEL,
2302	cb => \&IO::AIO::poll_cb,
2303	);
2304		4107
2305	Event->timer (	4108	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2306	data => WF_AUTOCANCEL,	4109	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2307	after => 0,	4110	Coro::async_pool {
2308	interval => 10,	4111	$Coro::current->{desc} = "runtime saver";
2309	cb => sub {
2310	(Coro::unblock_sub {
2311	write_runtime	4112	write_runtime_sync
2312	or warn "ERROR: unable to write runtime file: $!";	4113	or error "ERROR: unable to write runtime file: $!";
2313	})->();	4114	};
2314	},	4115	}
2315	);	4116
		4117	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4118	$sig->send;
		4119	}
		4120	$WAIT_FOR_TICK->broadcast;
		4121
		4122	$LOAD = ($NOW - $TICK_START) / $TICK;
		4123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4124
		4125	if (0) {
		4126	if ($NEXT_TICK) {
		4127	my $jitter = $TICK_START - $NEXT_TICK;
		4128	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4129	debug "jitter $JITTER\n";#d#
		4130	}
		4131	}
		4132	}
		4133
		4134	{
		4135	# configure BDB
		4136
		4137	BDB::min_parallel 16;
		4138	BDB::max_poll_reqs $TICK * 0.1;
		4139	#$AnyEvent::BDB::WATCHER->priority (1);
		4140
		4141	unless ($DB_ENV) {
		4142	$DB_ENV = BDB::db_env_create;
		4143	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4144	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4145	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4146	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4147	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4148
		4149	cf::sync_job {
		4150	eval {
		4151	BDB::db_env_open
		4152	$DB_ENV,
		4153	$BDBDIR,
		4154	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4155	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4156	0666;
		4157
		4158	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4159	};
		4160
		4161	cf::cleanup "db_env_open(db): $@" if $@;
		4162	};
		4163	}
		4164
		4165	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4166	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4167	};
		4168	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4169	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4170	};
		4171	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4172	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4173	};
		4174	}
		4175
		4176	{
		4177	# configure IO::AIO
		4178
		4179	IO::AIO::min_parallel 8;
		4180	IO::AIO::max_poll_time $TICK * 0.1;
		4181	undef $AnyEvent::AIO::WATCHER;
		4182	}
		4183
		4184	our $_log_backtrace;
		4185	our $_log_backtrace_last;
		4186
		4187	sub _log_backtrace {
		4188	my ($msg, @addr) = @_;
		4189
		4190	$msg =~ s/\n$//;
		4191
		4192	if ($_log_backtrace_last eq $msg) {
		4193	LOG llevInfo, "[ABT] $msg\n";
		4194	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4195	# limit the # of concurrent backtraces
		4196	} elsif ($_log_backtrace < 2) {
		4197	$_log_backtrace_last = $msg;
		4198	++$_log_backtrace;
		4199	my $perl_bt = Carp::longmess $msg;
		4200	async {
		4201	$Coro::current->{desc} = "abt $msg";
		4202
		4203	my @bt = fork_call {
		4204	@addr = map { sprintf "%x", $_ } @addr;
		4205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4207	or die "addr2line: $!";
		4208
		4209	my @funcs;
		4210	my @res = <$fh>;
		4211	chomp for @res;
		4212	while (@res) {
		4213	my ($func, $line) = splice @res, 0, 2, ();
		4214	push @funcs, "[$func] $line";
		4215	}
		4216
		4217	@funcs
		4218	};
		4219
		4220	LOG llevInfo, "[ABT] $perl_bt\n";
		4221	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4222	LOG llevInfo, "[ABT] $_\n" for @bt;
		4223	--$_log_backtrace;
		4224	};
		4225	} else {
		4226	LOG llevInfo, "[ABT] $msg\n";
		4227	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4228	}
		4229	}
		4230
		4231	# load additional modules
		4232	require "cf/$_.pm" for @EXTRA_MODULES;
		4233	cf::_connect_to_perl_2;
2316		4234
2317	END { cf::emergency_save }	4235	END { cf::emergency_save }
2318		4236
2319	1	4237	1
2320		4238

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