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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.580 by root, Wed Jan 4 03:22:48 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (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 %MAP; # all maps	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	148	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $RANDOM_MAPS = cf::localdir . "/random";	149	our $JITTER; # average jitter
55	our %EXT_CORO;	150	our $TICK_START; # for load detecting purposes
		151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
56		159
57	binmode STDOUT;	160	binmode STDOUT;
58	binmode STDERR;	161	binmode STDERR;
59		162
60	# read virtual server time, if available	163	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
65	}	168	}
66		169
67	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		171
73	# a special map that is always available	172	mkdir $_
74	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		174
75	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
76		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
77	#############################################################################	183	#############################################################################
78		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
79	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
80		197
81	=over 4	198	=over 4
82		199
83	=item $cf::UPTIME	200	=item $cf::UPTIME
84		201
85	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
86		218
87	=item $cf::RUNTIME	219	=item $cf::RUNTIME
88		220
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	222	every server tick.
91		223
92	=item $cf::LIBDIR	224	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		225	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		226	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		227
94	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		230	unique-items directory, player file directory, random maps directory and
		231	database environment.
96		232
		233	=item $cf::LOADAVG
		234
		235	The current CPU load on the server (alpha-smoothed), as a value between 0
		236	(none) and 1 (overloaded), indicating how much time is spent on processing
		237	objects per tick. Healthy values are < 0.5.
		238
97	=item $cf::NOW	239	=item $cf::LOAD
98		240
99	The time of the last (current) server tick.	241	The raw value load value from the last tick.
100
101	=item $cf::TICK
102
103	The interval between server ticks, in seconds.
104		242
105	=item %cf::CFG	243	=item %cf::CFG
106		244
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	246	from wherever your confdir points to.
109		247
		248	=item cf::wait_for_tick, cf::wait_for_tick_begin
		249
		250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		251	returns directly I<after> the tick processing (and consequently, can only wake one thread
		252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
		282
110	=back	283	=back
111		284
112	=cut	285	=cut
113		286
114	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	294	my $msg = join "", @_;
117	utf8::encode $msg;
118		295
119	$msg .= "\n"	296	$msg .= "\n"
120	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
121		298
122	LOG llevError, "cfperl: $msg";	299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	300
124	}	301	LOG llevWarn, $msg;
		302	};
		303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
125		317
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	322	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		323	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	324	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		325
133	# we bless all objects into (empty) derived classes to force a method lookup	326	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	327	# within the Safe compartment.
135	for my $pkg (qw(	328	for my $pkg (qw(
136	cf::global cf::attachable	329	cf::global cf::attachable
137	cf::object cf::object::player	330	cf::object cf::object::player
138	cf::client cf::player	331	cf::client cf::player
139	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
140	cf::map cf::party cf::region	334	cf::party cf::region
141	)) {	335	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	337	}
145		338
146	$Event::DIED = sub {	339	$EV::DIED = sub {
147	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
148	};	341	};
149		342
150	my %ext_pkg;	343	#############################################################################
151	my @exts;	344
152	my @hook;	345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
153		349
154	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
155		351
156	=over 4	352	=over 4
157		353
158	=cut	354	=item dumpval $ref
159		355
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	356	=cut
161		357
		358	sub dumpval {
		359	eval {
		360	local $SIG{__DIE__};
		361	my $d;
		362	if (1) {
		363	$d = new Data::Dumper([$_[0]], ["*var"]);
		364	$d->Terse(1);
		365	$d->Indent(2);
		366	$d->Quotekeys(0);
		367	$d->Useqq(1);
		368	#$d->Bless(...);
		369	$d->Seen($_[1]) if @_ > 1;
		370	$d = $d->Dump();
		371	}
		372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		373	$d
		374	} || "[unable to dump $_[0]: '$@']";
		375	}
		376
		377	=item $scalar = load_file $path
		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
162	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
163		392
164	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
165		394
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	395	=item $json = cf::encode_json $ref
174		396
175	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
176		398
177	=cut	399	=cut
178		400
179	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	402
181	JSON::Syck::Dump $_[0]	403	sub encode_json($) { $json_coder->encode ($_[0]) }
		404	sub decode_json($) { $json_coder->decode ($_[0]) }
		405
		406	=item $ref = cf::decode_storable $scalar
		407
		408	Same as Coro::Storable::thaw, so blocks.
		409
		410	=cut
		411
		412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		413
		414	=item $ref = cf::decode_yaml $scalar
		415
		416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		417
		418	=cut
		419
		420	sub decode_yaml($) {
		421	fork_call { YAML::XS::Load $_[0] } @_
		422	}
		423
		424	=item $scalar = cf::unlzf $scalar
		425
		426	Same as Compress::LZF::compress, but takes server ticks into account, so
		427	blocks.
		428
		429	=cut
		430
		431	sub unlzf($) {
		432	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		433	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		434	Compress::LZF::decompress $_[0]
		435	}
		436
		437	=item cf::post_init { BLOCK }
		438
		439	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		440	but I<before> the server starts ticking again.
		441
		442	The codeblock will have a single boolean argument to indicate whether this
		443	is a reload or not.
		444
		445	=cut
		446
		447	sub post_init(&) {
		448	push @POST_INIT, shift;
		449	}
		450
		451	sub _post_init {
		452	trace "running post_init jobs";
		453
		454	# run them in parallel...
		455
		456	my @join;
		457
		458	while () {
		459	push @join, map &Coro::async ($_, 0), @POST_INIT;
		460	@POST_INIT = ();
		461
		462	@join or last;
		463
		464	(pop @join)->join;
		465	}
182	}	466	}
183		467
184	=item cf::lock_wait $string	468	=item cf::lock_wait $string
185		469
186	Wait until the given lock is available. See cf::lock_acquire.	470	Wait until the given lock is available. See cf::lock_acquire.
187		471
188	=item my $lock = cf::lock_acquire $string	472	=item my $lock = cf::lock_acquire $string
189		473
190	Wait until the given lock is available and then acquires it and returns	474	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	475	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	476	for example when the coroutine gets canceled), the lock is automatically
193	returned.	477	returned.
194		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
195	Lock names should begin with a unique identifier (for example, cf::map::find	482	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	483	uses map_find and cf::map::load uses map_load).
197		484
198	=cut	485	=item $locked = cf::lock_active $string
199		486
200	our %LOCK;	487	Return true if the lock is currently active, i.e. somebody has locked it.
		488
		489	=cut
		490
		491	our $LOCKS = new Coro::SemaphoreSet;
201		492
202	sub lock_wait($) {	493	sub lock_wait($) {
203	my ($key) = @_;	494	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	495	}
211		496
212	sub lock_acquire($) {	497	sub lock_acquire($) {
213	my ($key) = @_;	498	$LOCKS->guard ($_[0])
		499	}
214		500
215	# wait, to be sure we are not locked	501	sub lock_active($) {
216	lock_wait $key;	502	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	503	}
225		504
226	sub freeze_mainloop {	505	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	506	tick_inhibit_inc;
228		507
229	my $guard = Coro::guard { $TICK_WATCHER->start };	508	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;
231	$guard
232	}	509	}
		510
		511	=item cf::periodic $interval, $cb
		512
		513	Like EV::periodic, but randomly selects a starting point so that the actions
		514	get spread over time.
		515
		516	=cut
		517
		518	sub periodic($$) {
		519	my ($interval, $cb) = @_;
		520
		521	my $start = rand List::Util::min 180, $interval;
		522
		523	EV::periodic $start, $interval, 0, $cb
		524	}
		525
		526	=item cf::get_slot $time[, $priority[, $name]]
		527
		528	Allocate $time seconds of blocking CPU time at priority C<$priority>
		529	(default: 0): This call blocks and returns only when you have at least
		530	C<$time> seconds of cpu time till the next tick. The slot is only valid
		531	till the next cede.
		532
		533	Background jobs should use a priority les than zero, interactive jobs
		534	should use 100 or more.
		535
		536	The optional C<$name> can be used to identify the job to run. It might be
		537	used for statistical purposes and should identify the same time-class.
		538
		539	Useful for short background jobs.
		540
		541	=cut
		542
		543	our @SLOT_QUEUE;
		544	our $SLOT_QUEUE;
		545	our $SLOT_DECAY = 0.9;
		546
		547	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		548	$SLOT_QUEUE = Coro::async {
		549	$Coro::current->desc ("timeslot manager");
		550
		551	my $signal = new Coro::Signal;
		552	my $busy;
		553
		554	while () {
		555	next_job:
		556
		557	my $avail = cf::till_tick;
		558
		559	for (0 .. $#SLOT_QUEUE) {
		560	if ($SLOT_QUEUE[$_][0] <= $avail) {
		561	$busy = 0;
		562	my $job = splice @SLOT_QUEUE, $_, 1, ();
		563	$job->[2]->send;
		564	Coro::cede;
		565	goto next_job;
		566	} else {
		567	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		568	}
		569	}
		570
		571	if (@SLOT_QUEUE) {
		572	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		573	$WAIT_FOR_TICK->wait;
		574	} else {
		575	$busy = 0;
		576	Coro::schedule;
		577	}
		578	}
		579	};
		580
		581	sub get_slot($;$$) {
		582	return if tick_inhibit || $Coro::current == $Coro::main;
		583
		584	my ($time, $pri, $name) = @_;
		585
		586	$time = clamp $time, 0.01, $TICK * .6;
		587
		588	my $sig = new Coro::Signal;
		589
		590	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		591	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		592	$SLOT_QUEUE->ready;
		593	$sig->wait;
		594	}
		595
		596	=item cf::async { BLOCK }
		597
		598	Currently the same as Coro::async_pool, meaning you cannot use
		599	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		600	thing you are allowed to do is call C<prio> on it.
		601
		602	=cut
		603
		604	BEGIN { *async = \&Coro::async_pool }
233		605
234	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
235		607
236	The design of crossfire+ requires that the main coro ($Coro::main) is	608	The design of Deliantra requires that the main coroutine ($Coro::main)
237	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
238	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.
239		612
240	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
241	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
242	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
243	fast or be very important.	616	fast or be very important.
…		…
245	=cut	618	=cut
246		619
247	sub sync_job(&) {	620	sub sync_job(&) {
248	my ($job) = @_;	621	my ($job) = @_;
249		622
250	if ($Coro::current == $Coro::main) {	623	if (in_main) {
		624	my $time = AE::time;
		625
251	# this is the main coro, too bad, we have to block	626	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	627	# till the operation succeeds, freezing the server :/
253		628
254	# TODO: use suspend/resume instead	629	#LOG llevError, Carp::longmess "sync job";#d#
255	# (but this is cancel-safe)	630
256	my $freeze_guard = freeze_mainloop;	631	my $freeze_guard = freeze_mainloop;
257		632
258	my $busy = 1;	633	my $busy = 1;
259	my @res;	634	my @res;
260		635
261	(Coro::async_pool {	636	(async {
		637	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	638	@res = eval { $job->() };
263	warn $@ if $@;	639	error $@ if $@;
264	undef $busy;	640	undef $busy;
265	})->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
266		642
267	while ($busy) {	643	while ($busy) {
268	unless (Coro::cede) {	644	if (Coro::nready) {
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;	645	Coro::cede_notself;
		646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
271	}	648	}
272	}	649	}
		650
		651	my $time = AE::time - $time;
		652
		653	$TICK_START += $time; # do not account sync jobs to server load
273		654
274	wantarray ? @res : $res[0]	655	wantarray ? @res : $res[0]
275	} else {	656	} else {
276	# we are in another coroutine, how wonderful, everything just works	657	# we are in another coroutine, how wonderful, everything just works
277		658
278	$job->()	659	$job->()
279	}	660	}
280	}	661	}
281		662
282	=item $coro = cf::coro { BLOCK }	663	=item $coro = cf::async_ext { BLOCK }
283		664
284	Creates (and readies) and returns a new coro. This coro is automcatially	665	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	666	extension calling this is being unloaded.
286		667
287	=cut	668	=cut
288		669
289	sub coro(&) {	670	sub async_ext(&) {
290	my $cb = shift;	671	my $cb = shift;
291		672
292	my $coro = &Coro::async_pool ($cb);	673	my $coro = &Coro::async ($cb);
293		674
294	$coro->on_destroy (sub {	675	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	676	delete $EXT_CORO{$coro+0};
296	});	677	});
297	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
298		679
299	$coro	680	$coro
300	}	681	}
301		682
302	sub write_runtime {	683	=item fork_call { }, @args
303	my $runtime = cf::localdir . "/runtime";
304		684
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	685	Executes the given code block with the given arguments in a seperate
306	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.
307		689
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	690	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		691
312	aio_fsync $fh	692	sub post_fork {
313	and return;	693	reset_signals;
		694	}
314		695
315	close $fh	696	sub fork_call(&@) {
316	or return;	697	my ($cb, @args) = @_;
317		698
318	aio_rename "$runtime~", $runtime	699	# we seemingly have to make a local copy of the whole thing,
319	and return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
320		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 {
321	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 });
322	}	886	}
323		887
324	=back	888	=back
325		889
326	=cut	890	=cut
327		891
328	#############################################################################	892	#############################################################################
329		893
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447
448	#############################################################################
449
450	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
451		895
452	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
453	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")
454	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
455		899
456	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>
457	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
458	crossfire+).	902	Deliantra).
459		903
460	=over 4	904	=over 4
461		905
462	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
463		907
…		…
507	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
508		952
509	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
510	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
511		955
512	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
513	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.
514		958
515	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
516		960
517	=over 4	961	=over 4
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	1022	our @CB_MAP = ();
579		1023
580	my %attachment;	1024	my %attachment;
581		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
582	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
584		1034
585	use sort 'stable';	1035	use sort 'stable';
586		1036
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
621		1071
622	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		1076
627	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
629		1079
630	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
635		1085
636	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
637	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
638		1088
639	} elsif (ref $type) {	1089	} elsif (ref $type) {
640	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
641		1091
642	} else {	1092	} else {
643	shift @arg;	1093	shift @arg;
644	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
645	}	1095	}
646	}	1096	}
647	}	1097	}
648		1098
649	sub _object_attach {	1099	sub _object_attach {
…		…
659	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
660	}	1110	}
661		1111
662	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
663	} else {	1113	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
665	}	1115	}
666		1116
667	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
668	}	1118	}
669		1119
…		…
671	if (ref $_[0]) {	1121	if (ref $_[0]) {
672	_object_attach @_;	1122	_object_attach @_;
673	} else {	1123	} else {
674	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
675	}	1125	}
		1126	_recalc_want;
676	};	1127	};
677		1128
678	# all those should be optimised	1129	# all those should be optimised
679	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
684	reattach ($obj);	1135	reattach ($obj);
685	} else {	1136	} else {
686	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
687	}	1138	}
		1139	_recalc_want;
688	};	1140	};
689		1141
690	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
692		1144
…		…
707	";	1159	";
708	die if $@;	1160	die if $@;
709	}	1161	}
710		1162
711	our $override;	1163	our $override;
712	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?
713		1165
714	sub override {	1166	sub override {
715	$override = 1;	1167	$override = 1;
716	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
717	}	1169	}
718		1170
719	sub do_invoke {	1171	sub do_invoke {
720	my $event = shift;	1172	my $event = shift;
721	my $callbacks = shift;	1173	my $callbacks = shift;
722		1174
723	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
724		1176
725	local $override;	1177	local $override;
726		1178
727	for (@$callbacks) {	1179	for (@$callbacks) {
728	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
729		1181
730	if ($@) {	1182	if ($@) {
731	warn "$@";
732	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
733	override;	1184	override;
734	}	1185	}
735		1186
736	return 1 if $override;	1187	return 1 if $override;
737	}	1188	}
738		1189
739	0	1190	0
740	}	1191	}
741		1192
742	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
743		1194
744	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
745		1196
746	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
747		1198
748	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
749	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
750	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
751		1202
752	=back	1203	=back
753		1204
754	=cut	1205	=cut
755		1206
756	#############################################################################	1207	#############################################################################
757	# 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	}
758		1251
759	sub reattach {	1252	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
761	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
762		1258
763	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
764		1260
765	@$registry = ();	1261	@$registry = ();
766		1262
…		…
771	for (@$attach) {	1267	for (@$attach) {
772	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
773	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
774	}	1270	}
775	} else {	1271	} else {
776	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
777	}	1273	}
778	}	1274	}
779	}	1275	}
780		1276
781	cf::attachable->attach (	1277	cf::attachable->attach (
782	prio => -1000000,	1278	prio => -1000000,
783	on_instantiate => sub {	1279	on_instantiate => sub {
784	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
785		1281
786	$data = from_json $data;	1282	$data = decode_json $data;
787		1283
788	for (@$data) {	1284	for (@$data) {
789	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
790		1286
791	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
807	sub object_freezer_save {	1303	sub object_freezer_save {
808	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
809		1305
810	sync_job {	1306	sync_job {
811	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
812	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
813	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
814		1312
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
817	aio_write $fh, 0, (length $$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;
818	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
819	close $fh;	1320	aio_close $fh;
820		1321
821	if (@$objs) {	1322	if (@$objs) {
822	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) {
823	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
825	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;
826	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
827	close $fh;	1331	aio_close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
829	}	1333	}
830	} else {	1334	} else {
831	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
832	}	1336	}
833		1337
834	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
835	} else {	1342	} else {
836	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
837	}	1344	}
838	} else {	1345	} else {
839	aio_unlink $filename;	1346	aio_unlink $filename;
840	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
841	}	1348	}
842	}	1349	};
843	}	1350	}
844		1351
845	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
847		1354
…		…
859	or return;	1366	or return;
860		1367
861	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
862	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
863	or return;	1370	or return;
		1371
864	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
865	}	1374	}
866		1375
		1376	utf8::decode (my $decname = $filename);
867	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
869	return ($data, $av);	1381	($data, $av)
870	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
871		1389
872	#############################################################################	1390	#############################################################################
873	# command handling &c	1391	# command handling &c
874		1392
875	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1407	}
890		1408
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1410
893	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.
894		1416
895	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
896	called.	1418	called.
897		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
898	=cut	1431	=cut
899		1432
900	sub register_extcmd {	1433	sub register_extcmd {
901	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
902		1435
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1436	$EXTCMD{$name} = $cb;
907	}	1437	}
		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
908		1446
909	cf::player->attach (	1447	cf::player->attach (
910	on_command => sub {	1448	on_unknown_command => sub {
911	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
912		1450
913	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
914	or return;	1452	or return;
915		1453
…		…
920	cf::override;	1458	cf::override;
921	},	1459	},
922	on_extcmd => sub {	1460	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
924		1462
925	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1464
927	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1467
		1468	my @reply;
		1469
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1470	if (my $cb = $EXTCMD{$type}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1471	@reply = $cb->($pl, @payload);
930	$pl->ext_reply ($msg->{msgid}, %reply);
931	}
932	}	1472	}
		1473
		1474	$pl->ext_reply ($reply, @reply)
		1475	if $reply;
		1476
933	} else {	1477	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1478	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
935	}	1479	}
936		1480
937	cf::override;	1481	cf::override;
938	},	1482	},
939	);	1483	);
940		1484
941	sub register {	1485	# "readahead" all extensions
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	1486	sub cache_extensions {
948	my ($path) = @_;	1487	my $grp = IO::AIO::aio_group;
949		1488
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1489	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1490	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1491	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }
990
991	# remove commands
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}	1492	}
1000	}	1493	};
1001		1494
1002	# remove extcmds	1495	$grp
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}	1496	}
1016		1497
1017	sub load_extensions {	1498	sub load_extensions {
		1499	info "loading extensions...";
		1500
		1501	cf::sync_job {
		1502	my %todo;
		1503
1018	for my $ext (<$LIBDIR/*.ext>) {	1504	for my $path (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;	1505	next unless -r $path;
1020	eval {	1506
1021	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	}
1022	1	1570	}
1023	} 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	}
1024	}	1583	};
1025	}	1584	}
1026		1585
1027	#############################################################################	1586	#############################################################################
1028	# load/save/clean perl data associated with a map
1029		1587
1030	*cf::mapsupport::on_clean = sub {	1588	=back
		1589
		1590	=head2 CORE EXTENSIONS
		1591
		1592	Functions and methods that extend core deliantra objects.
		1593
		1594	=cut
		1595
		1596	package cf::player;
		1597
		1598	use Coro::AIO;
		1599
		1600	=head3 cf::player
		1601
		1602	=over 4
		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
		1618	=item cf::player::find $login
		1619
		1620	Returns the given player object, loading it if necessary (might block).
		1621
		1622	=cut
		1623
		1624	sub playerdir($) {
		1625	"$PLAYERDIR/"
		1626	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1627	}
		1628
		1629	sub path($) {
		1630	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1631
		1632	(playerdir $login) . "/playerdata"
		1633	}
		1634
		1635	sub find_active($) {
		1636	$cf::PLAYER{$_[0]}
		1637	and $cf::PLAYER{$_[0]}->active
		1638	and $cf::PLAYER{$_[0]}
		1639	}
		1640
		1641	sub exists($) {
1031	my ($map) = @_;	1642	my ($login) = @_;
1032		1643
1033	my $path = $map->tmpname;	1644	$cf::PLAYER{$login}
1034	defined $path or return;	1645	or !aio_stat path $login
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}	1646	}
1047		1647
1048	# TODO: compatibility cruft, remove when no longer needed	1648	sub find($) {
		1649	return $cf::PLAYER{$_[0]} || do {
		1650	my $login = $_[0];
		1651
		1652	my $guard = cf::lock_acquire "user_find:$login";
		1653
		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	}
		1672	}
		1673	}
		1674
1049	cf::player->attach (	1675	cf::player->attach (
1050	on_load => sub {	1676	on_load => sub {
1051	my ($pl, $path) = @_;	1677	my ($pl, $path) = @_;
1052		1678
1053	for my $o (all_objects $pl->ob) {	1679	# restore slots saved in save, below
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1680	my $slots = delete $pl->{_slots};
1055	$o->set_ob_key_value ("_perl_data");
1056		1681
1057	%$o = %{ Storable::thaw pack "H*", $value };	1682	$pl->ob->current_weapon ($slots->[0]);
1058	}	1683	$pl->combat_ob ($slots->[1]);
1059	}	1684	$pl->ranged_ob ($slots->[2]);
1060	},	1685	},
1061	);	1686	);
1062		1687
1063	#############################################################################	1688	sub save($) {
		1689	my ($pl) = @_;
1064		1690
1065	=head2 CORE EXTENSIONS	1691	return if $pl->{deny_save};
1066		1692
1067	Functions and methods that extend core crossfire objects.	1693	my $path = path $pl;
		1694	my $guard = cf::lock_acquire "user_save:$path";
1068		1695
1069	=head3 cf::player	1696	return if $pl->{deny_save};
		1697
		1698	aio_mkdir playerdir $pl, 0770;
		1699	$pl->{last_save} = $cf::RUNTIME;
		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
		1706	$pl->save_pl ($path);
		1707	cf::cede_to_tick;
		1708	}
		1709
		1710	sub new($) {
		1711	my ($login) = @_;
		1712
		1713	my $self = create;
		1714
		1715	$self->ob->name ($login);
		1716	$self->{deny_save} = 1;
		1717
		1718	$cf::PLAYER{$login} = $self;
		1719
		1720	$self
		1721	}
		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
		1740	sub quit_character {
		1741	my ($pl) = @_;
		1742
		1743	my $name = $pl->ob->name;
		1744
		1745	$pl->{deny_save} = 1;
		1746	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1747
		1748	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1749	$pl->deactivate;
		1750
		1751	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1752	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1753	ext::highscore::check ($pl->ob);
		1754
		1755	$pl->ns->destroy if $pl->ns;
		1756
		1757	my $path = playerdir $pl;
		1758	my $temp = "$path~$cf::RUNTIME~deleting~";
		1759	aio_rename $path, $temp;
		1760	delete $cf::PLAYER{$pl->ob->name};
		1761	$pl->destroy;
		1762
		1763	my $prefix = qr<^~\Q$name\E/>;
		1764
		1765	# nuke player maps
		1766	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1767
		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;
		1811	}
		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
		1850	=item $player->ext_reply ($msgid, @msg)
		1851
		1852	Sends an ext reply to the player.
		1853
		1854	=cut
		1855
		1856	sub ext_reply($$@) {
		1857	my ($self, $id, @msg) = @_;
		1858
		1859	$self->ns->ext_reply ($id, @msg)
		1860	}
		1861
		1862	=item $player->ext_msg ($type, @msg)
		1863
		1864	Sends an ext event to the client.
		1865
		1866	=cut
		1867
		1868	sub ext_msg($$@) {
		1869	my ($self, $type, @msg) = @_;
		1870
		1871	$self->ns->ext_msg ($type, @msg);
		1872	}
		1873
		1874	=head3 cf::region
1070		1875
1071	=over 4	1876	=over 4
1072		1877
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut	1878	=cut
1078		1879
1079	sub cf::player::exists($) {	1880	package cf::region;
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083		1881
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)	1882	=item cf::region::find_by_path $path
1085		1883
1086	Sends an ext reply to the player.	1884	Tries to decuce the likely region for a map knowing only its path.
1087		1885
1088	=cut	1886	=cut
1089		1887
1090	sub cf::player::ext_reply($$$%) {	1888	sub find_by_path($) {
1091	my ($self, $id, %msg) = @_;	1889	my ($path) = @_;
1092		1890
1093	$msg{msgid} = $id;	1891	$path =~ s/^~[^\/]*//; # skip ~login
1094		1892
1095	$self->send ("ext " . to_json \%msg);	1893	my ($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
1096	}	1903	}
1097		1904
1098	=back	1905	=back
1099
1100		1906
1101	=head3 cf::map	1907	=head3 cf::map
1102		1908
1103	=over 4	1909	=over 4
1104		1910
…		…
1107	package cf::map;	1913	package cf::map;
1108		1914
1109	use Fcntl;	1915	use Fcntl;
1110	use Coro::AIO;	1916	use Coro::AIO;
1111		1917
		1918	use overload
		1919	'""' => \&as_string,
		1920	fallback => 1;
		1921
1112	our $MAX_RESET = 3600;	1922	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1923	our $DEFAULT_RESET = 3000;
1114		1924
1115	sub generate_random_map {	1925	sub generate_random_map {
		1926	my ($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 {
1116	my ($path, $rmp) = @_;	1964	my ($path, $base) = @_;
1117		1965
1118	# mit "rum" bekleckern, nicht	1966	$path = "$path"; # make sure it's a string
1119	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
1120	$path,	1995	$path
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})
1132	}	1996	}
1133		1997
1134	# and all this just because we cannot iterate over	1998	sub new_from_path {
1135	# all maps in C++...	1999	my (undef, $path, $base) = @_;
1136	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 '$base')";
		2015	()
		2016	}
		2017
		2018	# may re-bless or do other evil things
		2019	sub init {
1137	my ($change) = @_;	2020	my ($self) = @_;
1138		2021
1139	$_->change_map_light ($change)	2022	$self
1140	for grep $_->outdoor, values %cf::MAP;
1141	}	2023	}
1142		2024
		2025	sub as_string {
		2026	my ($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
1143	sub try_load_header($) {	2075	sub load_header_from($) {
1144	my ($path) = @_;	2076	my ($self, $path) = @_;
1145		2077
1146	utf8::encode $path;	2078	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	2079	my $f = new_from_file cf::object::thawer $path
1148	or return;	2080	or return;
1149		2081
1150	my $map = cf::map::new	2082	$self->_load_header ($f)
1151	or return;	2083	or return;
1152		2084
1153	# for better error messages only, will be overwritten	2085	local $MAP_LOADING{$self->{path}} = $self;
1154	$map->path ($path);	2086	$f->resolve_delayed_derefs;
1155		2087
1156	$map->load_header ($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
1157	or return;	2135	or return;
		2136	$self->prepare_orig;
		2137	}
1158		2138
1159	$map->{load_path} = $path;	2139	$self->{deny_reset} = 1
		2140	if $self->no_reset;
1160		2141
1161	$map	2142	$self->default_region (cf::region::find_by_path $self->{path})
		2143	unless $self->default_region;
		2144
		2145	1
1162	}	2146	}
1163		2147
1164	sub find;	2148	sub find;
1165	sub find {	2149	sub find {
1166	my ($path, $origin) = @_;	2150	my ($path, $origin) = @_;
1167		2151
1168	#warn "find<$path,$origin>\n";#d#	2152	cf::cede_to_tick;
1169		2153
1170	$path = new cf::path $path, $origin && $origin->path;	2154	$path = normalise $path, $origin;
1171	my $key = $path->as_string;
1172		2155
1173	cf::lock_wait "map_find:$key";	2156	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1174
1175	$cf::MAP{$key} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	2157	my $guard2 = cf::lock_acquire "map_find:$path";
1177		2158
1178	# do it the slow way	2159	$cf::MAP{$path} || do {
1179	my $map = try_load_header $path->save_path;	2160	my $map = new_from_path cf::map $path
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	2161	or return;
1197		2162
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	2163	$map->{last_save} = $cf::RUNTIME;
1210		2164
1211	Coro::cede;	2165	$map->load_header
		2166	or return;
1212		2167
1213	if ($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;
1214	$map->reset;	2173	$map->reset;
1215	undef $guard;
1216	$map = find $path	2174	return find $path;
1217	or return;
1218	}	2175	}
1219		2176
1220	$cf::MAP{$key} = $map	2177	$cf::MAP{$path} = $map
1221	}	2178	}
1222	}	2179	}
		2180
		2181	sub pre_load { }
		2182	#sub post_load { } # XS
1223		2183
1224	sub load {	2184	sub load {
1225	my ($self) = @_;	2185	my ($self) = @_;
1226		2186
		2187	local $self->{deny_reset} = 1; # loading can take a long time
		2188
1227	my $path = $self->{path};	2189	my $path = $self->{path};
		2190
		2191	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2192	my $guard = cf::lock_acquire "map_data:$path";
1229		2193
1230	return if $self->in_memory != cf::MAP_SWAPPED;	2194	return unless $self->valid;
		2195	return unless $self->state == cf::MAP_SWAPPED;
1231		2196
1232	$self->in_memory (cf::MAP_LOADING);
1233
1234	$self->alloc;	2197	$self->alloc;
1235	$self->load_objects ($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)
1236	or return;	2206	or return;
1237		2207
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2208	$self->post_load_original
1239	if delete $self->{load_original};	2209	if delete $self->{load_original};
1240		2210
1241	if (my $uniq = $path->uniq_path) {	2211	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	2212	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	2213	unless (aio_stat $uniq) {
		2214	if (my $f = new_from_file cf::object::thawer $uniq) {
1244	$self->clear_unique_items;	2215	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	2216	$self->_load_objects ($f);
		2217	$f->resolve_delayed_derefs;
		2218	}
		2219	}
1246	}	2220	}
1247	}
1248		2221
1249	Coro::cede;	2222	$f->resolve_delayed_derefs;
		2223	} else {
		2224	$self->post_load_original
		2225	if delete $self->{load_original};
		2226	}
1250		2227
		2228	$self->state (cf::MAP_INACTIVE);
		2229
		2230	cf::cede_to_tick;
1251	# now do the right thing for maps	2231	# now do the right thing for maps
1252	$self->link_multipart_objects;	2232	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	2233	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	2234	unless $self->difficulty;
1264	$self->activate;	2235	cf::cede_to_tick;
		2236
		2237	unless ($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	$self->post_load;
		2250
1265	}	2251	1
		2252	}
1266		2253
1267	Coro::cede;	2254	# customize the map for a given player, i.e.
		2255	# return the _real_ map. used by e.g. per-player
		2256	# maps to change the path to ~playername/mappath
		2257	sub customise_for {
		2258	my ($self, $ob) = @_;
1268		2259
1269	$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	$self
1270	}	2267	}
1271		2268
1272	sub find_sync {	2269	sub find_sync {
1273	my ($path, $origin) = @_;	2270	my ($path, $origin) = @_;
1274		2271
1275	cf::sync_job {	2272	# it's a bug to call this from the main context
1276	my $map = cf::map::find $path, $origin;	2273	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
1277	$map	2274	if $Coro::current == $Coro::main;
1278	}	2275
		2276	find $path, $origin
1279	}	2277	}
1280		2278
1281	sub do_load_sync {	2279	sub do_load_sync {
1282	my ($map) = @_;	2280	my ($map) = @_;
1283		2281
1284	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	}
1285	}	2352	}
1286		2353
1287	sub save {	2354	sub save {
1288	my ($self) = @_;	2355	my ($self) = @_;
1289		2356
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
1291		2358
1292	$self->{last_save} = $cf::RUNTIME;	2359	$self->_save;
1293
1294	return unless $self->dirty;
1295
1296	my $save = $self->{path}->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1298
1299	$self->{load_path} = $save;
1300
1301	return if $self->{deny_save};
1302
1303	local $self->{last_access} = $self->last_access;#d#
1304
1305	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}
1311	}	2360	}
1312		2361
1313	sub swap_out {	2362	sub swap_out {
1314	my ($self) = @_;	2363	my ($self) = @_;
1315		2364
1316	# save first because save cedes
1317	$self->save;
1318
1319	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1320		2366
		2367	return if !$self->linkable;
		2368	return if $self->{deny_save};
1321	return if $self->players;	2369	return if $self->players;
1322	return if $self->in_memory != cf::MAP_IN_MEMORY;
1323	return if $self->{deny_save};
1324		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
1325	$self->clear;	2380	$self->clear;
1326	$self->in_memory (cf::MAP_SWAPPED);
1327	}	2381	}
1328		2382
1329	sub reset_at {	2383	sub reset_at {
1330	my ($self) = @_;	2384	my ($self) = @_;
1331		2385
1332	# TODO: safety, remove and allow resettable per-player maps	2386	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	2387	return 1e99 if $self->{deny_reset};
1335		2388
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2389	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2390	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		2391
…		…
1343	my ($self) = @_;	2396	my ($self) = @_;
1344		2397
1345	$self->reset_at <= $cf::RUNTIME	2398	$self->reset_at <= $cf::RUNTIME
1346	}	2399	}
1347		2400
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	2401	sub reset {
1370	my ($self) = @_;	2402	my ($self) = @_;
1371		2403
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	2404	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		2405
1374	return if $self->players;	2406	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		2407
1377	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	}
1378		2419
1379	delete $cf::MAP{$self->path};	2420	delete $cf::MAP{$self->path};
1380		2421
		2422	$self->deactivate;
1381	$_->clear_links_to ($self) for values %cf::MAP;	2423	$_->clear_links_to ($self) for values %cf::MAP;
		2424	$self->clear;
1382		2425
1383	$self->unlink_save;	2426	$self->unlink_save;
1384	$self->destroy;	2427	$self->destroy;
1385	}	2428	}
1386		2429
1387	my $nuke_counter = "aaaa";	2430	my $nuke_counter = "aaaa";
1388		2431
1389	sub nuke {	2432	sub nuke {
1390	my ($self) = @_;	2433	my ($self) = @_;
1391		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};
1392	$self->{deny_save} = 1;	2444	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2445	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2446	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2447
		2448	$cf::MAP{$self->path} = $self;
		2449	}
		2450
1395	$self->reset; # polite request, might not happen	2451	$self->reset; # polite request, might not happen
1396	}	2452	}
1397		2453
1398	sub customise_for {	2454	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2455
1401	if ($map->per_player) {	2456	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2457	maps. May block.
		2458
		2459	=cut
		2460
		2461	sub tmp_maps() {
1403	}	2462	[
1404		2463	map {
1405	$map	2464	utf8::decode $_;
		2465	/\.map$/
		2466	? normalise $_
		2467	: ()
		2468	} @{ aio_readdir $TMPDIR or [] }
		2469	]
1406	}	2470	}
1407		2471
1408	sub emergency_save {	2472	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2473
1411	warn "enter emergency map save\n";	2474	Returns an arrayref with all map paths of currently instantiated and saved
		2475	random maps. May block.
1412		2476
1413	cf::sync_job {	2477	=cut
1414	warn "begin emergency map save\n";	2478
1415	$_->save for values %cf::MAP;	2479	sub random_maps() {
		2480	[
		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;
1416	};	2536	}
1417		2537
1418	warn "end emergency map 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	}
1419	}	2593	}
1420		2594
1421	package cf;	2595	package cf;
1422		2596
1423	=back	2597	=back
1424
1425		2598
1426	=head3 cf::object::player	2599	=head3 cf::object::player
1427		2600
1428	=over 4	2601	=over 4
1429		2602
…		…
1432	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>
1433	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
1434	dialogue with the given NPC character.	2607	dialogue with the given NPC character.
1435		2608
1436	=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	};
1437		2624
1438	# rough implementation of a future "reply" method that works	2625	# rough implementation of a future "reply" method that works
1439	# with dialog boxes.	2626	# with dialog boxes.
1440	#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
1441	sub cf::object::player::reply($$$;$) {	2628	sub cf::object::player::reply($$$;$) {
…		…
1443		2630
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2631	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2632
1446	if ($self->{record_replies}) {	2633	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2634	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2635
1448	} 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 {
1449	$msg = $npc->name . " says: $msg" if $npc;	2644	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2645	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2646	}
1451	}	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 (@_);
1452	}	2658	}
1453		2659
1454	=item $player_object->may ("access")	2660	=item $player_object->may ("access")
1455		2661
1456	Returns wether the given player is authorized to access resource "access"	2662	Returns wether the given player is authorized to access resource "access"
…		…
1469		2675
1470	=item $player_object->enter_link	2676	=item $player_object->enter_link
1471		2677
1472	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}>).
1473		2679
1474	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.
1475	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.
1476		2686
1477	=item $player_object->leave_link ($map, $x, $y)	2687	=item $player_object->leave_link ($map, $x, $y)
1478		2688
1479	Moves the player out of the specila link map onto the given map. If the	2689	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2690	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2691	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2692	fails, to the emergency map position.
1483		2693
1484	Might block.	2694	Might block.
1485		2695
1486	=cut	2696	=cut
		2697
		2698	sub link_map {
		2699	unless ($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	$LINK_MAP
		2706	}
1487		2707
1488	sub cf::object::player::enter_link {	2708	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2709	my ($self) = @_;
1490		2710
1491	$self->deactivate_recursive;	2711	$self->deactivate_recursive;
1492		2712
1493	return if $self->map == $LINK_MAP;	2713	++$self->{_link_recursion};
		2714
		2715	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2716
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2718	if $self->map && $self->map->{path} ne "{link}";
1497		2719
1498	$self->enter_map ($LINK_MAP, 20, 20);	2720	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1499	}	2721	}
1500		2722
1501	sub cf::object::player::leave_link {	2723	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2724	my ($self, $map, $x, $y) = @_;
		2725
		2726	return unless $self->contr->active;
1503		2727
1504	my $link_pos = delete $self->{_link_pos};	2728	my $link_pos = delete $self->{_link_pos};
1505		2729
1506	unless ($map) {	2730	unless ($map) {
1507	# restore original map position	2731	# restore original map position
…		…
1518	($x, $y) = (-1, -1)	2742	($x, $y) = (-1, -1)
1519	unless (defined $x) && (defined $y);	2743	unless (defined $x) && (defined $y);
1520		2744
1521	# use -1 or undef as default coordinates, not 0, 0	2745	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2746	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2747	if $x <= 0 && $y <= 0;
1524		2748
1525	$map->load;	2749	$map->load;
1526		2750
		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
1527	$self->activate_recursive;	2758	$self->activate_recursive;
1528	$self->enter_map ($map, $x, $y);
1529	}
1530
1531	cf::player->attach (
1532	on_logout => sub {
1533	my ($pl) = @_;
1534
1535	# abort map switching before logout
1536	if ($pl->ob->{_link_pos}) {
1537	cf::sync_job {
1538	$pl->ob->leave_link
1539	};
1540	}
1541	},	2759	}
1542	on_login => sub {
1543	my ($pl) = @_;
1544		2760
1545	# try to abort aborted map switching on player login :)	2761	}
1546	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {
1548		2762
1549	$pl->ob->enter_link;	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559		2764
1560	=item $player_object->goto ($path, $x, $y)	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.
1561		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
1562	=cut	2774	=cut
		2775
		2776	our $GOTOGEN;
1563		2777
1564	sub cf::object::player::goto {	2778	sub cf::object::player::goto {
1565	my ($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;
1566		2789
1567	$self->enter_link;	2790	$self->enter_link;
1568		2791
1569	(Coro::async_pool {	2792	(async {
1570	$path = new cf::path $path;	2793	$Coro::current->{desc} = "player::goto $path $x $y";
1571		2794
1572	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) {
1573	$map = $map->customise_for ($self) if $map;	2818	$map = $map->customise_for ($self);
1574		2819	$map = $check->($map, $x, $y, $self) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2820	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2821	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2822	}
1579		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};
1580	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
		2835	}
		2836
		2837	$done->($self) if $done;
1581	})->prio (1);	2838	})->prio (1);
1582	}	2839	}
1583		2840
1584	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
1585		2842
…		…
1587		2844
1588	sub parse_random_map_params {	2845	sub parse_random_map_params {
1589	my ($spec) = @_;	2846	my ($spec) = @_;
1590		2847
1591	my $rmp = { # defaults	2848	my $rmp = { # defaults
1592	xsize => 10,	2849	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2850	ysize => (cf::rndm 15, 40),
		2851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2852	#layout => string,
1594	};	2853	};
1595		2854
1596	for (split /\n/, $spec) {	2855	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2856	my ($k, $v) = split /\s+/, $_, 2;
1598		2857
…		…
1610	# that depends on the exit object	2869	# that depends on the exit object
1611		2870
1612	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
1613		2872
1614	if ($exit->map) {	2873	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2874	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
1619	}	2880	}
1620		2881
1621	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
1622		2883
1623	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1624	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
		2886	my $meta = "$RANDOMDIR/$md5.meta";
1625		2887
1626	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) {
1627	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;
1628		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
1629	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
1631	}	2899	}
1632	}	2900	}
1633		2901
1634	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
1636		2904
1637	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
1638		2906
1639	$self->enter_link;	2907	$self->enter_link;
1640		2908
1641	(Coro::async_pool {	2909	(async {
1642	$self->deactivate_recursive; # just to be sure	2910	$Coro::current->{desc} = "enter_exit";
		2911
1643	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
1644	prepare_random_map $exit	2926	prepare_random_map $exit
		2927	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2928
1645	if $exit->slaying eq "/!";	2929	$map = $exit->slaying;
1646		2930
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2931	} elsif ($slaying eq '!up') {
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2932	$map = $exit->map->tile_path (cf::TILE_UP);
		2933	$x = $exit->x;
		2934	$y = $exit->y;
1649		2935
		2936	} elsif ($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
1650	1;	2948	1
1651	}) {	2949	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2950	$self->message ("Something went wrong deep within the deliantra server. "
1653	. "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. "
1654	. "Please report this to the dungeon master",	2952	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2953	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2954
1657	warn "ERROR in enter_exit: $@";	2955	error "ERROR in enter_exit: $@";
1658	$self->leave_link;	2956	$self->leave_link;
1659	}	2957	}
1660	})->prio (1);	2958	})->prio (1);
1661	}	2959	}
1662		2960
…		…
1673		2971
1674	sub cf::client::send_drawinfo {	2972	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2973	my ($self, $text, $flags) = @_;
1676		2974
1677	utf8::encode $text;	2975	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2976	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2977	}
1680		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	}
1681		3196
1682	=item $success = $client->query ($flags, "text", \&cb)	3197	=item $success = $client->query ($flags, "text", \&cb)
1683		3198
1684	Queues a query to the client, calling the given callback with	3199	Queues a query to the client, calling the given callback with
1685	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>,
1686	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>.
1687		3202
1688	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
1689	reliable at some point in the future.	3204	become reliable at some point in the future.
1690		3205
1691	=cut	3206	=cut
1692		3207
1693	sub cf::client::query {	3208	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	3209	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	3217	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3218	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		3219
1705	$self->send_packet ($self->{query_queue}[0][0])	3220	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	3221	if @{ $self->{query_queue} } == 1;
		3222
		3223	1
1707	}	3224	}
1708		3225
1709	cf::client->attach (	3226	cf::client->attach (
		3227	on_connect => sub {
		3228	my ($ns) = @_;
		3229
		3230	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3231	},
1710	on_reply => sub {	3232	on_reply => sub {
1711	my ($ns, $msg) = @_;	3233	my ($ns, $msg) = @_;
1712		3234
1713	# this weird shuffling is so that direct followup queries	3235	# this weird shuffling is so that direct followup queries
1714	# get handled first	3236	# get handled first
1715	my $queue = delete $ns->{query_queue}	3237	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	3238	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		3239
1718	(shift @$queue)->[1]->($msg);	3240	(shift @$queue)->[1]->($msg);
		3241	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		3242
1720	push @{ $ns->{query_queue} }, @$queue;	3243	push @{ $ns->{query_queue} }, @$queue;
1721		3244
1722	if (@{ $ns->{query_queue} } == @$queue) {	3245	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	3246	if (@$queue) {
…		…
1725	} else {	3248	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3249	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	3250	}
1728	}	3251	}
1729	},	3252	},
		3253	on_exticmd => sub {
		3254	my ($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	},
1730	);	3276	);
1731		3277
1732	=item $client->coro (\&cb)	3278	=item $client->async (\&cb)
1733		3279
1734	Create a new coroutine, running the specified callback. The coroutine will	3280	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	3281	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	3282	or loss of connection).
1737		3283
1738	=cut	3284	=cut
1739		3285
1740	sub cf::client::coro {	3286	sub cf::client::async {
1741	my ($self, $cb) = @_;	3287	my ($self, $cb) = @_;
1742		3288
1743	my $coro = &Coro::async_pool ($cb);	3289	my $coro = &Coro::async ($cb);
1744		3290
1745	$coro->on_destroy (sub {	3291	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	3292	delete $self->{_coro}{$coro+0};
1747	});	3293	});
1748		3294
…		…
1750		3296
1751	$coro	3297	$coro
1752	}	3298	}
1753		3299
1754	cf::client->attach (	3300	cf::client->attach (
1755	on_destroy => sub {	3301	on_client_destroy => sub {
1756	my ($ns) = @_;	3302	my ($ns) = @_;
1757		3303
1758	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3304	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1759	},	3305	},
1760	);	3306	);
…		…
1775	our $safe = new Safe "safe";	3321	our $safe = new Safe "safe";
1776	our $safe_hole = new Safe::Hole;	3322	our $safe_hole = new Safe::Hole;
1777		3323
1778	$SIG{FPE} = 'IGNORE';	3324	$SIG{FPE} = 'IGNORE';
1779		3325
1780	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3326	$safe->permit_only (Opcode::opset qw(
		3327	:base_core :base_mem :base_orig :base_math :base_loop
		3328	grepstart grepwhile mapstart mapwhile
		3329	sort time
		3330	));
1781		3331
1782	# here we export the classes and methods available to script code	3332	# here we export the classes and methods available to script code
1783		3333
1784	=pod	3334	=pod
1785		3335
1786	The following fucntions and emthods are available within a safe environment:	3336	The following functions and methods are available within a safe environment:
1787		3337
1788	cf::object contr pay_amount pay_player map	3338	cf::object
		3339	contr pay_amount pay_player map x y force_find force_add destroy
		3340	insert remove name archname title slaying race decrease split
		3341	value
		3342
1789	cf::object::player player	3343	cf::object::player
1790	cf::player peaceful	3344	player
1791	cf::map trigger	3345
		3346	cf::player
		3347	peaceful
		3348
		3349	cf::map
		3350	trigger
1792		3351
1793	=cut	3352	=cut
1794		3353
1795	for (	3354	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	3355	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3356	insert remove inv nrof name archname title slaying race
		3357	decrease split destroy change_exp value msg lore send_msg)],
1797	["cf::object::player" => qw(player)],	3358	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	3359	["cf::player" => qw(peaceful send_msg)],
1799	["cf::map" => qw(trigger)],	3360	["cf::map" => qw(trigger)],
1800	) {	3361	) {
1801	no strict 'refs';
1802	my ($pkg, @funs) = @$_;	3362	my ($pkg, @funs) = @$_;
1803	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3363	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1804	for @funs;	3364	for @funs;
1805	}	3365	}
1806		3366
…		…
1821		3381
1822	my $qcode = $code;	3382	my $qcode = $code;
1823	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3383	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1824	$qcode =~ s/\n/\\n/g;	3384	$qcode =~ s/\n/\\n/g;
1825		3385
		3386	%vars = (_dummy => 0) unless %vars;
		3387
		3388	my @res;
1826	local $_;	3389	local $_;
1827	local @safe::cf::_safe_eval_args = values %vars;
1828		3390
1829	my $eval =	3391	my $eval =
1830	"do {\n"	3392	"do {\n"
1831	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3393	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1832	. "#line 0 \"{$qcode}\"\n"	3394	. "#line 0 \"{$qcode}\"\n"
1833	. $code	3395	. $code
1834	. "\n}"	3396	. "\n}"
1835	;	3397	;
1836		3398
		3399	if ($CFG{safe_eval}) {
1837	sub_generation_inc;	3400	sub_generation_inc;
		3401	local @safe::cf::_safe_eval_args = values %vars;
1838	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3402	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1839	sub_generation_inc;	3403	sub_generation_inc;
		3404	} else {
		3405	local @cf::_safe_eval_args = values %vars;
		3406	@res = wantarray ? eval eval : scalar eval $eval;
		3407	}
1840		3408
1841	if ($@) {	3409	if ($@) {
1842	warn "$@";	3410	warn "$@",
1843	warn "while executing safe code '$code'\n";	3411	"while executing safe code '$code'\n",
1844	warn "with arguments " . (join " ", %vars) . "\n";	3412	"with arguments " . (join " ", %vars) . "\n";
1845	}	3413	}
1846		3414
1847	wantarray ? @res : $res[0]	3415	wantarray ? @res : $res[0]
1848	}	3416	}
1849		3417
…		…
1863	=cut	3431	=cut
1864		3432
1865	sub register_script_function {	3433	sub register_script_function {
1866	my ($fun, $cb) = @_;	3434	my ($fun, $cb) = @_;
1867		3435
1868	no strict 'refs';	3436	$fun = "safe::$fun" if $CFG{safe_eval};
1869	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3437	*$fun = $safe_hole->wrap ($cb);
1870	}	3438	}
1871		3439
1872	=back	3440	=back
1873		3441
1874	=cut	3442	=cut
1875		3443
1876	#############################################################################	3444	#############################################################################
		3445	# the server's init and main functions
1877		3446
1878	=head2 EXTENSION DATABASE SUPPORT	3447	sub load_facedata($) {
		3448	my ($path) = @_;
1879		3449
1880	Crossfire maintains a very simple database for extension use. It can	3450	# HACK to clear player env face cache, we need some signal framework
1881	currently store anything that can be serialised using Storable, which	3451	# for this (global event?)
1882	excludes objects.	3452	%ext::player_env::MUSIC_FACE_CACHE = ();
1883		3453
1884	The parameter C<$family> should best start with the name of the extension	3454	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1885	using it, it should be unique.
1886		3455
1887	=over 4	3456	trace "loading facedata from $path\n";
1888		3457
1889	=item $hashref = cf::db_get $family	3458	my $facedata = decode_storable load_file $path;
1890		3459
1891	Return a hashref for use by the extension C<$family>, which can be	3460	$facedata->{version} == 2
1892	modified. After modifications, you have to call C<cf::db_dirty> or	3461	or cf::cleanup "$path: version mismatch, cannot proceed.";
1893	C<cf::db_sync>.
1894		3462
1895	=item $value = cf::db_get $family => $key	3463	# patch in the exptable
1896		3464	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1897	Returns a single value from the database	3465	$facedata->{resource}{"res/exp_table"} = {
1898		3466	type => FT_RSRC,
1899	=item cf::db_put $family => $hashref	3467	data => $exp_table,
1900		3468	hash => (Digest::MD5::md5 $exp_table),
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}
1927
1928	my $pid;
1929
1930	sub db_save() {
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});	3469	};
		3470	cf::cede_to_tick;
1950		3471
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}	3472	{
		3473	my $faces = $facedata->{faceinfo};
1955		3474
1956	sub db_get($;$) {	3475	while (my ($face, $info) = each %$faces) {
1957	@_ >= 2	3476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961		3477
1962	sub db_put($$;$) {	3478	cf::face::set_visibility $idx, $info->{visibility};
1963	if (@_ >= 3) {	3479	cf::face::set_magicmap $idx, $info->{magicmap};
1964	$DB->{$_[0]}{$_[1]} = $_[2];	3480	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1965	} else {	3481	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1966	$DB->{$_[0]} = $_[1];	3482	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1967	}
1968	db_dirty;
1969	}
1970		3483
1971	cf::global->attach (	3484	cf::cede_to_tick;
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	3485	}
1976	);
1977	}
1978		3486
1979	#############################################################################	3487	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	3488	next unless $info->{smooth};
1981		3489
1982	sub cfg_load {	3490	my $idx = cf::face::find $face
1983	open my $fh, "<:utf8", cf::confdir . "/config"	3491	or next;
1984	or return;
1985		3492
1986	local $/;	3493	if (my $smooth = cf::face::find $info->{smooth}) {
1987	*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	}
1988		3499
		3500	cf::cede_to_tick;
		3501	}
		3502	}
		3503
		3504	{
		3505	my $anims = $facedata->{animinfo};
		3506
		3507	while (my ($anim, $info) = each %$anims) {
		3508	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3509	cf::cede_to_tick;
		3510	}
		3511
		3512	cf::anim::invalidate_all; # d'oh
		3513	}
		3514
		3515	{
		3516	my $res = $facedata->{resource};
		3517
		3518	while (my ($name, $info) = each %$res) {
		3519	if (defined (my $type = $info->{type})) {
		3520	# TODO: different hash - must free and use new index, or cache ixface data queue
		3521	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3522
		3523	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3524	cf::face::set_type $idx, $type;
		3525	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3526	} else {
		3527	# $RESOURCE{$name} = $info; # unused
		3528	}
		3529
		3530	cf::cede_to_tick;
		3531	}
		3532	}
		3533
		3534	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3535
		3536	1
		3537	}
		3538
		3539	register_exticmd fx_want => sub {
		3540	my ($ns, $want) = @_;
		3541
		3542	while (my ($k, $v) = each %$want) {
		3543	$ns->fx_want ($k, $v);
		3544	}
		3545	};
		3546
		3547	sub load_resource_file($) {
		3548	my $guard = lock_acquire "load_resource_file";
		3549
		3550	my $status = load_resource_file_ $_[0];
		3551	get_slot 0.1, 100;
		3552	cf::arch::commit_load;
		3553
		3554	$status
		3555	}
		3556
		3557	sub reload_regions {
		3558	# HACK to clear player env face cache, we need some signal framework
		3559	# for this (global event?)
		3560	%ext::player_env::MUSIC_FACE_CACHE = ();
		3561
		3562	load_resource_file "$MAPDIR/regions"
		3563	or die "unable to load regions file\n";
		3564
		3565	for (cf::region::list) {
		3566	$_->{match} = qr/$_->{match}/
		3567	if exists $_->{match};
		3568	}
		3569	}
		3570
		3571	sub reload_facedata {
		3572	load_facedata "$DATADIR/facedata"
		3573	or die "unable to load facedata\n";
		3574	}
		3575
		3576	sub reload_archetypes {
		3577	load_resource_file "$DATADIR/archetypes"
		3578	or die "unable to load archetypes\n";
		3579	}
		3580
		3581	sub reload_treasures {
		3582	load_resource_file "$DATADIR/treasures"
		3583	or die "unable to load treasurelists\n";
		3584	}
		3585
		3586	sub reload_sound {
		3587	trace "loading sound config from $DATADIR/sound\n";
		3588
		3589	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3590
		3591	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3592	my $sound = $soundconf->{compat}[$_]
		3593	or next;
		3594
		3595	my $face = cf::face::find "sound/$sound->[1]";
		3596	cf::sound::set $sound->[0] => $face;
		3597	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3598	}
		3599
		3600	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3601	my $face = cf::face::find "sound/$v";
		3602	cf::sound::set $k => $face;
		3603	}
		3604	}
		3605
		3606	sub reload_resources {
		3607	trace "reloading resource files...\n";
		3608
		3609	reload_exp_table;
		3610	reload_materials;
		3611	reload_facedata;
		3612	reload_sound;
		3613	reload_archetypes;
		3614	reload_regions;
		3615	reload_treasures;
		3616
		3617	trace "finished reloading resource files\n";
		3618	}
		3619
		3620	sub reload_config {
		3621	trace "reloading config file...\n";
		3622
		3623	my $config = load_file "$CONFDIR/config";
		3624	utf8::decode $config;
		3625	*CFG = decode_yaml $config;
		3626
1989	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3627	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
1990		3628
1991	$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};
1992	$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};
1993		3631
1994	if (exists $CFG{mlockall}) {	3632	if (exists $CFG{mlockall}) {
1995	eval {	3633	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	3634	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	3635	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	3636	};
1999	warn $@ if $@;	3637	warn $@ if $@;
2000	}	3638	}
2001	}	3639	}
2002		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
2003	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
2004	# we must not ever block the main coroutine	3679	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	3680	local $Coro::idle = sub {
2006	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#
2007	Coro::async_pool { Event::one_event };	3682	(async {
		3683	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3684	EV::loop EV::LOOP_ONESHOT;
		3685	})->prio (Coro::PRIO_MAX);
2008	};	3686	};
2009		3687
2010	cfg_load;	3688	evthread_start IO::AIO::poll_fileno;
2011	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
2012	load_extensions;	3711	load_extensions;
2013	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;
2014	}	3730	}
2015		3731
2016	#############################################################################	3732	#############################################################################
2017	# initialisation	3733	# initialisation and cleanup
2018		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
2019	sub reload() {	3938	sub do_reload_perl() {
2020	# can/must only be called in main	3939	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	3940	unless (in_main) {
2022	warn "can only reload from main coroutine\n";	3941	error "can only reload from main coroutine";
2023	return;	3942	return;
2024	}	3943	}
2025		3944
2026	warn "reloading...";	3945	return if $RELOAD++;
2027		3946
2028	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 {
2029	cf::emergency_save;	3956	#cf::emergency_save;
2030		3957
2031	eval {	3958	trace "perl_reload: cancelling all extension coros";
2032	# if anything goes wrong in here, we should simply crash as we already saved
2033
2034	# cancel all watchers
2035	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}
2038
2039	# cancel all extension coros
2040	$_->cancel for values %EXT_CORO;	3959	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	3960	%EXT_CORO = ();
2042		3961
2043	# unload all extensions	3962	trace "perl_reload: removing commands";
2044	for (@exts) {	3963	%COMMAND = ();
2045	warn "unloading <$_>";
2046	unload_extension $_;
2047	}
2048		3964
2049	# unload all modules loaded from $LIBDIR	3965	trace "perl_reload: removing ext/exti commands";
2050	while (my ($k, $v) = each %INC) {	3966	%EXTCMD = ();
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3967	%EXTICMD = ();
2052		3968
2053	warn "removing <$k>";	3969	trace "perl_reload: unloading/nuking all extensions";
2054	delete $INC{$k};	3970	for my $pkg (@EXTS) {
		3971	trace "... unloading $pkg";
2055		3972
2056	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;
2058
2059	if (my $cb = $k->can ("unload_module")) {	3973	if (my $cb = $pkg->can ("unload")) {
		3974	eval {
2060	$cb->();	3975	$cb->($pkg);
		3976	1
		3977	} or error "$pkg unloaded, but with errors: $@";
		3978	}
		3979
		3980	trace "... clearing $pkg";
		3981	clear_package $pkg;
2061	}	3982	}
2062		3983
2063	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 $k;
2064	}	3999	}
2065		4000
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	4001	trace "perl_reload: getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	4002	clear_package "safe::$_"
2072	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);
2073		4004
2074	# remove register_script_function callbacks	4005	trace "perl_reload: unloading cf.pm \"a bit\"";
2075	# TODO
2076
2077	# unload cf.pm "a bit"
2078	delete $INC{"cf.pm"};	4006	delete $INC{"cf.pm"};
		4007	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2079		4008
2080	# don't, removes xs symbols, too,	4009	# don't, removes xs symbols, too,
2081	# and global variables created in xs	4010	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	4011	#clear_package __PACKAGE__;
2083		4012
2084	# reload cf.pm	4013	info "perl_reload: unload completed, starting to reload now";
2085	warn "reloading cf.pm";	4014
		4015	trace "perl_reload: reloading cf.pm";
2086	require cf;	4016	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4017	cf::_connect_to_perl_1;
2088		4018
2089	# load config and database again	4019	trace "perl_reload: loading config and database again";
2090	cf::cfg_load;	4020	cf::reload_config;
2091	cf::db_load;
2092		4021
2093	# load extensions	4022	trace "perl_reload: loading extensions";
2094	warn "load extensions";
2095	cf::load_extensions;	4023	cf::load_extensions;
2096		4024
2097	# reattach attachments to objects	4025	if ($REATTACH_ON_RELOAD) {
2098	warn "reattach";	4026	trace "perl_reload: reattaching attachments to objects/players";
2099	_global_reattach;	4027	_global_reattach; # objects, sockets
		4028	trace "perl_reload: reattaching attachments to maps";
		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 $RELOAD_WATCHER;
		4063	};
2100	};	4064	};
2101
2102	if ($@) {
2103	warn $@;
2104	warn "error while reloading, exiting.";
2105	exit 1;
2106	}
2107
2108	warn "reloaded successfully";
2109	};
2110
2111	#############################################################################
2112
2113	unless ($LINK_MAP) {
2114	$LINK_MAP = cf::map::new;
2115
2116	$LINK_MAP->width (41);
2117	$LINK_MAP->height (41);
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,
2126	cb => sub {
2127	$_[0]->w->cancel;
2128
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});
2147
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	4065	}
2153
2154	register "<global>", __PACKAGE__;
2155		4066
2156	register_command "reload" => sub {	4067	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	4068	my ($who, $arg) = @_;
2158		4069
2159	if ($who->flag (FLAG_WIZ)) {	4070	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	4071	$who->message ("reloading server.");
		4072	async {
		4073	$Coro::current->{desc} = "perl_reload";
		4074	reload_perl;
		4075	};
2163	}	4076	}
2164	};	4077	};
2165		4078
2166	unshift @INC, $LIBDIR;	4079	#############################################################################
2167		4080
2168	$TICK_WATCHER = Event->timer (	4081	my $bug_warning = 0;
2169	reentrant => 0,
2170	prio => 0,
2171	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,
2173	cb => sub {
2174	cf::server_tick; # one server iteration
2175	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;
2177		4082
2178	# if we are delayed by four ticks or more, skip them all	4083	sub wait_for_tick() {
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4084	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2180		4085
2181	$TICK_WATCHER->at ($NEXT_TICK);	4086	$WAIT_FOR_TICK->wait;
2182	$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;
2183	},	4102	}
2184	);
2185		4103
2186	IO::AIO::max_poll_time $TICK * 0.2;	4104	cf::one_tick; # one server iteration
2187		4105
2188	Event->io (	4106	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2189	fd => IO::AIO::poll_fileno,
2190	poll => 'r',
2191	prio => 5,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195		4107
2196	Event->timer (	4108	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2197	data => WF_AUTOCANCEL,	4109	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2198	after => 0,	4110	Coro::async_pool {
2199	interval => 10,	4111	$Coro::current->{desc} = "runtime saver";
2200	cb => sub {
2201	(Coro::unblock_sub {
2202	write_runtime	4112	write_runtime_sync
2203	or warn "ERROR: unable to write runtime file: $!";	4113	or error "ERROR: unable to write runtime file: $!";
2204	})->();	4114	};
2205	},	4115	}
2206	);	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;
2207		4234
2208	END { cf::emergency_save }	4235	END { cf::emergency_save }
2209		4236
2210	1	4237	1
2211		4238

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