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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.593 by root, Fri Nov 9 01:59:33 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 AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
20	use Data::Dumper;	59	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	60	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	61	use YAML::XS ();
		62	use IO::AIO ();
25	use Time::HiRes;	63	use Time::HiRes;
		64	use Compress::LZF;
		65	use Digest::MD5 ();
26		66
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	67	AnyEvent::detect;
		68
		69	# configure various modules to our taste
		70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
		72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		73
		74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		79
		80	# strictly for debugging
		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		82
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		84
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	85	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		86
36	our %COMMAND = ();	87	our %COMMAND = ();
37	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
38		89
39	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	93	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	94	our %EXT_MAP = (); # pluggable maps
43		95
		96	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	97	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
46		100
47	our $TICK = MAX_TIME * 1e-6;	101	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	102
		103	our $DATADIR = datadir;
		104	our $LIBDIR = "$DATADIR/ext";
		105	our $PODDIR = "$DATADIR/pod";
		106	our $MAPDIR = "$DATADIR/" . mapdir;
		107
		108	our $LOCALDIR = localdir;
		109	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		110	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		111	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		112	our $RANDOMDIR = "$LOCALDIR/random";
		113	our $BDBDIR = "$LOCALDIR/db";
		114	our $PIDFILE = "$LOCALDIR/pid";
		115	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		116
		117	#our %RESOURCE; # unused
		118
		119	our $OUTPUT_RATE_MIN = 3000;
		120	our $OUTPUT_RATE_MAX = 1000000;
		121
		122	our $MAX_LINKS = 32; # how many chained exits to follow
		123	our $VERBOSE_IO = 1;
		124
		125	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	127	our $NEXT_TICK;
		128	our $USE_FSYNC = 1; # use fsync to write maps - default on
		129
		130	our $BDB_DEADLOCK_WATCHER;
		131	our $BDB_CHECKPOINT_WATCHER;
		132	our $BDB_TRICKLE_WATCHER;
		133	our $DB_ENV;
		134
		135	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		136
		137	our %CFG;
		138	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		139
		140	our $UPTIME; $UPTIME ||= time;
		141	our $RUNTIME = 0;
		142	our $SERVER_TICK = 0;
50	our $NOW;	143	our $NOW;
51		144
52	our %CFG;	145	our (%PLAYER, %PLAYER_LOADING); # all users
		146	our (%MAP, %MAP_LOADING ); # all maps
		147	our $LINK_MAP; # the special {link} map, which is always available
53		148
54	our $UPTIME; $UPTIME ||= time;	149	# used to convert map paths into valid unix filenames by replacing / by ∕
55	our $RUNTIME;	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		151
57	our %PLAYER; # all users	152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
58	our %MAP; # all maps	153	our $LOADAVG; # same thing, but with alpha-smoothing
59	our $LINK_MAP; # the special {link} map	154	our $JITTER; # average jitter
60	our $RANDOM_MAPS = cf::localdir . "/random";	155	our $TICK_START; # for load detecting purposes
61		156
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	157	our @POST_INIT;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	158
		159	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		160	our $REALLY_UNLOOP; # never set to true, please :)
		161
		162	our $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
64		164
65	binmode STDOUT;	165	binmode STDOUT;
66	binmode STDERR;	166	binmode STDERR;
67		167
68	# read virtual server time, if available	168	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
70	open my $fh, "<", cf::localdir . "/runtime"	170	open my $fh, "<", $RUNTIMEFILE
71	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
72	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
73	}	173	}
74		174
75	mkdir cf::localdir;	175	eval "sub TICK() { $TICK } 1" or die;
76	mkdir cf::localdir . "/" . cf::playerdir;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		176
81	# a special map that is always available	177	mkdir $_
82	our $LINK_MAP;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		179
83	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
84		181
		182	sub cf::map::normalise;
		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
85	#############################################################################	188	#############################################################################
86		189
		190	%REFLECT = ();
		191	for (@REFLECT) {
		192	my $reflect = JSON::XS::decode_json $_;
		193	$REFLECT{$reflect->{class}} = $reflect;
		194	}
		195
		196	# this is decidedly evil
		197	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		198
		199	#############################################################################
		200
87	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
88		202
89	=over 4	203	=over 4
90		204
91	=item $cf::UPTIME	205	=item $cf::UPTIME
92		206
93	The timestamp of the server start (so not actually an uptime).	207	The timestamp of the server start (so not actually an "uptime").
		208
		209	=item $cf::SERVER_TICK
		210
		211	An unsigned integer that starts at zero when the server is started and is
		212	incremented on every tick.
		213
		214	=item $cf::NOW
		215
		216	The (real) time of the last (current) server tick - updated before and
		217	after tick processing, so this is useful only as a rough "what time is it
		218	now" estimate.
		219
		220	=item $cf::TICK
		221
		222	The interval between each server tick, in seconds.
94		223
95	=item $cf::RUNTIME	224	=item $cf::RUNTIME
96		225
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	226	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	227	every server tick.
99		228
100	=item $cf::LIBDIR	229	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		230	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		231	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		232
102	The perl library directory, where extensions and cf-specific modules can	233	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	234	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		235	unique-items directory, player file directory, random maps directory and
		236	database environment.
104		237
		238	=item $cf::LOADAVG
		239
		240	The current CPU load on the server (alpha-smoothed), as a value between 0
		241	(none) and 1 (overloaded), indicating how much time is spent on processing
		242	objects per tick. Healthy values are < 0.5.
		243
105	=item $cf::NOW	244	=item $cf::LOAD
106		245
107	The time of the last (current) server tick.	246	The raw value load value from the last tick.
108
109	=item $cf::TICK
110
111	The interval between server ticks, in seconds.
112		247
113	=item %cf::CFG	248	=item %cf::CFG
114		249
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	251	from wherever your confdir points to.
117		252
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	253	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		254
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	256	returns directly I<after> the tick processing (and consequently, can only wake one thread
122	processing has been done. Call C<< ->wait >> on them to maximise the	257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
124		287
125	=back	288	=back
126		289
127	=cut	290	=cut
128		291
129	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
130	*CORE::GLOBAL::warn = sub {	293	sub warn (@) { LOG llevWarn , join "", @_ }
		294	sub info (@) { LOG llevInfo , join "", @_ }
		295	sub debug(@) { LOG llevDebug, join "", @_ }
		296	sub trace(@) { LOG llevTrace, join "", @_ }
		297
		298	$Coro::State::WARNHOOK = sub {
131	my $msg = join "", @_;	299	my $msg = join "", @_;
132	utf8::encode $msg;
133		300
134	$msg .= "\n"	301	$msg .= "\n"
135	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
136		303
		304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		305
137	LOG llevError, $msg;	306	LOG llevWarn, $msg;
138	};	307	};
139	}	308
		309	$Coro::State::DIEHOOK = sub {
		310	return unless $^S eq 0; # "eq", not "=="
		311
		312	error Carp::longmess $_[0];
		313
		314	if (in_main) {#d#
		315	error "DIEHOOK called in main context, Coro bug?\n";#d#
		316	return;#d#
		317	}#d#
		318
		319	# kill coroutine otherwise
		320	Coro::terminate
		321	};
140		322
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	327	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		328	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	329	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		330
148	# we bless all objects into (empty) derived classes to force a method lookup	331	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	332	# within the Safe compartment.
150	for my $pkg (qw(	333	for my $pkg (qw(
151	cf::global cf::attachable	334	cf::global cf::attachable
152	cf::object cf::object::player	335	cf::object cf::object::player
153	cf::client cf::player	336	cf::client cf::player
154	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
155	cf::map cf::party cf::region	339	cf::party cf::region
156	)) {	340	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	342	}
160		343
161	$Event::DIED = sub {	344	$EV::DIED = sub {
162	warn "error in event callback: @_";	345	warn "error in event callback: $@";
163	};	346	};
		347
		348	#############################################################################
		349
		350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
164		354
165	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
166		356
167	=over 4	357	=over 4
168		358
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	378	$d
189	} || "[unable to dump $_[0]: '$@']";	379	} || "[unable to dump $_[0]: '$@']";
190	}	380	}
191		381
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	382	=item $scalar = cf::load_file $path
193		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($path, $data, $sync) = @_;
		405
		406	my $lock = cf::lock_acquire ("replace_file:$path");
		407
		408	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		409	or return;
		410
		411	$data = $data->() if ref $data;
		412
		413	length $data == aio_write $fh, 0, (length $data), $data, 0
		414	or return;
		415
		416	!$sync
		417	or !aio_fsync $fh
		418	or return;
		419
		420	aio_close $fh
		421	and return;
		422
		423	aio_rename "$path~", $path
		424	and return;
		425
		426	if ($sync) {
		427	$path =~ s%/[^/]*$%%;
		428	aio_pathsync $path;
		429	}
		430
		431	1
		432	}
		433
194	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
195		435
196	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
197		437
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
206		439
207	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
208		441
209	=cut	442	=cut
210		443
211	sub to_json($) {	444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	445
213	JSON::Syck::Dump $_[0]	446	sub encode_json($) { $json_coder->encode ($_[0]) }
		447	sub decode_json($) { $json_coder->decode ($_[0]) }
		448
		449	=item $ref = cf::decode_storable $scalar
		450
		451	Same as Coro::Storable::thaw, so blocks.
		452
		453	=cut
		454
		455	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		456
		457	=item $ref = cf::decode_yaml $scalar
		458
		459	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		460
		461	=cut
		462
		463	sub decode_yaml($) {
		464	fork_call { YAML::XS::Load $_[0] } @_
		465	}
		466
		467	=item $scalar = cf::unlzf $scalar
		468
		469	Same as Compress::LZF::compress, but takes server ticks into account, so
		470	blocks.
		471
		472	=cut
		473
		474	sub unlzf($) {
		475	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		476	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		477	Compress::LZF::decompress $_[0]
		478	}
		479
		480	=item cf::post_init { BLOCK }
		481
		482	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		483	but I<before> the server starts ticking again.
		484
		485	The codeblock will have a single boolean argument to indicate whether this
		486	is a reload or not.
		487
		488	=cut
		489
		490	sub post_init(&) {
		491	push @POST_INIT, shift;
		492	}
		493
		494	sub _post_init {
		495	trace "running post_init jobs";
		496
		497	# run them in parallel...
		498
		499	my @join;
		500
		501	while () {
		502	push @join, map &Coro::async ($_, 0), @POST_INIT;
		503	@POST_INIT = ();
		504
		505	@join or last;
		506
		507	(pop @join)->join;
		508	}
214	}	509	}
215		510
216	=item cf::lock_wait $string	511	=item cf::lock_wait $string
217		512
218	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
219		514
220	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
221		516
222	Wait until the given lock is available and then acquires it and returns	517	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	518	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
225	returned.	520	returned.
226		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
227	Lock names should begin with a unique identifier (for example, cf::map::find	525	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
229		527
230	=cut	528	=item $locked = cf::lock_active $string
231		529
232	our %LOCK;	530	Return true if the lock is currently active, i.e. somebody has locked it.
		531
		532	=cut
		533
		534	our $LOCKS = new Coro::SemaphoreSet;
233		535
234	sub lock_wait($) {	536	sub lock_wait($) {
235	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
236
237	# wait for lock, if any
238	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;
241	}
242	}	538	}
243		539
244	sub lock_acquire($) {	540	sub lock_acquire($) {
245	my ($key) = @_;	541	$LOCKS->guard ($_[0])
		542	}
246		543
247	# wait, to be sure we are not locked	544	sub lock_active($) {
248	lock_wait $key;	545	$LOCKS->count ($_[0]) < 1
249
250	$LOCK{$key} = [];
251
252	Coro::guard {
253	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };
255	}
256	}	546	}
257		547
258	sub freeze_mainloop {	548	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
260		550
261	my $guard = Coro::guard { $TICK_WATCHER->start };	551	&Guard::guard (\&tick_inhibit_dec);
262	$TICK_WATCHER->stop;	552	}
263	$guard	553
		554	=item cf::periodic $interval, $cb
		555
		556	Like EV::periodic, but randomly selects a starting point so that the actions
		557	get spread over time.
		558
		559	=cut
		560
		561	sub periodic($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
		621	}
		622	};
		623
		624	sub get_slot($;$$) {
		625	return if tick_inhibit || $Coro::current == $Coro::main;
		626
		627	my ($time, $pri, $name) = @_;
		628
		629	$time = clamp $time, 0.01, $TICK * .6;
		630
		631	my $sig = new Coro::Signal;
		632
		633	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		634	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		635	$SLOT_QUEUE->ready;
		636	$sig->wait;
264	}	637	}
265		638
266	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
267		640
268	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		646
274	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
275		648
276	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
277		650
278	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
281		655
282	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
285	fast or be very important.	659	fast or be very important.
…		…
287	=cut	661	=cut
288		662
289	sub sync_job(&) {	663	sub sync_job(&) {
290	my ($job) = @_;	664	my ($job) = @_;
291		665
292	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
293	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
295		671
296	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	673
298	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
299		675
300	my $busy = 1;	676	my $busy = 1;
301	my @res;	677	my @res;
302		678
303	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	681	@res = eval { $job->() };
305	warn $@ if $@;	682	error $@ if $@;
306	undef $busy;	683	undef $busy;
307	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
308		685
309	while ($busy) {	686	while ($busy) {
310	Coro::cede or Event::one_event;	687	if (Coro::nready) {
		688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
311	}	691	}
		692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
312		697
313	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
314	} else {	699	} else {
315	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
316		701
…		…
336	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
337		722
338	$coro	723	$coro
339	}	724	}
340		725
341	sub write_runtime {	726	=item fork_call { }, @args
342	my $runtime = cf::localdir . "/runtime";
343		727
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	728	Executes the given code block with the given arguments in a seperate
345	or return;	729	process, returning the results. Everything must be serialisable with
		730	Coro::Storable. May, of course, block. Note that the executed sub may
		731	never block itself or use any form of event handling.
346		732
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	733	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		734
351	aio_fsync $fh	735	sub post_fork {
352	and return;	736	reset_signals;
		737	}
353		738
354	close $fh	739	sub fork_call(&@) {
355	or return;	740	my ($cb, @args) = @_;
356		741
357	aio_rename "$runtime~", $runtime	742	# we seemingly have to make a local copy of the whole thing,
358	and return;	743	# otherwise perl prematurely frees the stuff :/
		744	# TODO: investigate and fix (likely this will be rather laborious)
359		745
		746	my @res = Coro::Util::fork_eval {
		747	cf::post_fork;
		748	&$cb
		749	} @args;
		750
		751	wantarray ? @res : $res[-1]
		752	}
		753
		754	sub objinfo {
360	1	755	(
		756	"counter value" => cf::object::object_count,
		757	"objects created" => cf::object::create_count,
		758	"objects destroyed" => cf::object::destroy_count,
		759	"freelist size" => cf::object::free_count,
		760	"allocated objects" => cf::object::objects_size,
		761	"active objects" => cf::object::actives_size,
		762	)
		763	}
		764
		765	=item $coin = coin_from_name $name
		766
		767	=cut
		768
		769	our %coin_alias = (
		770	"silver" => "silvercoin",
		771	"silvercoin" => "silvercoin",
		772	"silvercoins" => "silvercoin",
		773	"gold" => "goldcoin",
		774	"goldcoin" => "goldcoin",
		775	"goldcoins" => "goldcoin",
		776	"platinum" => "platinacoin",
		777	"platinumcoin" => "platinacoin",
		778	"platinumcoins" => "platinacoin",
		779	"platina" => "platinacoin",
		780	"platinacoin" => "platinacoin",
		781	"platinacoins" => "platinacoin",
		782	"royalty" => "royalty",
		783	"royalties" => "royalty",
		784	);
		785
		786	sub coin_from_name($) {
		787	$coin_alias{$_[0]}
		788	? cf::arch::find $coin_alias{$_[0]}
		789	: undef
		790	}
		791
		792	=item $value = cf::db_get $family => $key
		793
		794	Returns a single value from the environment database.
		795
		796	=item cf::db_put $family => $key => $value
		797
		798	Stores the given C<$value> in the family. It can currently store binary
		799	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		800
		801	=item $db = cf::db_table "name"
		802
		803	Create and/or open a new database table. The string must not be "db" and must be unique
		804	within each server.
		805
		806	=cut
		807
		808	sub db_table($) {
		809	cf::error "db_get called from main context"
		810	if $Coro::current == $Coro::main;
		811
		812	my ($name) = @_;
		813	my $db = BDB::db_create $DB_ENV;
		814
		815	eval {
		816	$db->set_flags (BDB::CHKSUM);
		817
		818	utf8::encode $name;
		819	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		820	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		821	cf::cleanup "db_open(db): $!" if $!;
		822	};
		823	cf::cleanup "db_open(db): $@" if $@;
		824
		825	$db
		826	}
		827
		828	our $DB;
		829
		830	sub db_init {
		831	$DB ||= db_table "db";
		832	}
		833
		834	sub db_get($$) {
		835	my $key = "$_[0]/$_[1]";
		836
		837	cf::error "db_get called from main context"
		838	if $Coro::current == $Coro::main;
		839
		840	BDB::db_get $DB, undef, $key, my $data;
		841
		842	$! ? ()
		843	: $data
		844	}
		845
		846	sub db_put($$$) {
		847	BDB::dbreq_pri 4;
		848	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		849	}
		850
		851	=item cf::cache $id => [$paths...], $processversion => $process
		852
		853	Generic caching function that returns the value of the resource $id,
		854	caching and regenerating as required.
		855
		856	This function can block.
		857
		858	=cut
		859
		860	sub cache {
		861	my ($id, $src, $processversion, $process) = @_;
		862
		863	my $meta =
		864	join "\x00",
		865	$processversion,
		866	map {
		867	aio_stat $_
		868	and Carp::croak "$_: $!";
		869
		870	($_, (stat _)[7,9])
		871	} @$src;
		872
		873	my $dbmeta = db_get cache => "$id/meta";
		874	if ($dbmeta ne $meta) {
		875	# changed, we may need to process
		876
		877	my @data;
		878	my $md5;
		879
		880	for (0 .. $#$src) {
		881	$data[$_] = load_file $src->[$_];
		882	}
		883
		884	# if processing is expensive, check
		885	# checksum first
		886	if (1) {
		887	$md5 =
		888	join "\x00",
		889	$processversion,
		890	map {
		891	cf::cede_to_tick;
		892	($src->[$_], Digest::MD5::md5_hex $data[$_])
		893	} 0.. $#$src;
		894
		895
		896	my $dbmd5 = db_get cache => "$id/md5";
		897	if ($dbmd5 eq $md5) {
		898	db_put cache => "$id/meta", $meta;
		899
		900	return db_get cache => "$id/data";
		901	}
		902	}
		903
		904	my $t1 = Time::HiRes::time;
		905	my $data = $process->(\@data);
		906	my $t2 = Time::HiRes::time;
		907
		908	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		909
		910	db_put cache => "$id/data", $data;
		911	db_put cache => "$id/md5" , $md5;
		912	db_put cache => "$id/meta", $meta;
		913
		914	return $data;
		915	}
		916
		917	db_get cache => "$id/data"
		918	}
		919
		920	=item cf::datalog type => key => value, ...
		921
		922	Log a datalog packet of the given type with the given key-value pairs.
		923
		924	=cut
		925
		926	sub datalog($@) {
		927	my ($type, %kv) = @_;
		928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	929	}
362		930
363	=back	931	=back
364		932
365	=cut	933	=cut
366		934
367	#############################################################################	935	#############################################################################
368		936
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522
523	#############################################################################
524
525	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
526		938
527	Many objects in crossfire are so-called attachable objects. That means you can	939	Many objects in deliantra are so-called attachable objects. That means you can
528	attach callbacks/event handlers (a collection of which is called an "attachment")	940	attach callbacks/event handlers (a collection of which is called an "attachment")
529	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
530		942
531	In the following description, CLASS can be any of C<global>, C<object>	943	In the following description, CLASS can be any of C<global>, C<object>
532	C<player>, C<client> or C<map> (i.e. the attachable objects in	944	C<player>, C<client> or C<map> (i.e. the attachable objects in
533	crossfire+).	945	Deliantra).
534		946
535	=over 4	947	=over 4
536		948
537	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
538		950
…		…
582	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
583		995
584	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
585	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
586		998
587	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
588	that are attached at load/instantiate time, thus the need for a name.	1000	that are attached at load/instantiate time, thus the need for a name.
589		1001
590	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
591		1003
592	=over 4	1004	=over 4
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	1064	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	1065	our @CB_MAP = ();
654		1066
655	my %attachment;	1067	my %attachment;
656		1068
		1069	sub cf::attachable::thawer_merge {
		1070	# simply override everything except _meta
		1071	local $_[0]{_meta};
		1072	%{$_[0]} = %{$_[1]};
		1073	}
		1074
657	sub _attach_cb($$$$) {	1075	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	1076	my ($registry, $event, $prio, $cb) = @_;
659		1077
660	use sort 'stable';	1078	use sort 'stable';
661		1079
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
696		1114
697	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		1119
702	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
704		1122
705	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
710		1128
711	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
712	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
713		1131
714	} elsif (ref $type) {	1132	} elsif (ref $type) {
715	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
716		1134
717	} else {	1135	} else {
718	shift @arg;	1136	shift @arg;
719	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
720	}	1138	}
721	}	1139	}
722	}	1140	}
723		1141
724	sub _object_attach {	1142	sub _object_attach {
…		…
734	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
735	}	1153	}
736		1154
737	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
738	} else {	1156	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
740	}	1158	}
741		1159
742	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
743	}	1161	}
744		1162
…		…
746	if (ref $_[0]) {	1164	if (ref $_[0]) {
747	_object_attach @_;	1165	_object_attach @_;
748	} else {	1166	} else {
749	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
750	}	1168	}
		1169	_recalc_want;
751	};	1170	};
752		1171
753	# all those should be optimised	1172	# all those should be optimised
754	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
759	reattach ($obj);	1178	reattach ($obj);
760	} else {	1179	} else {
761	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
762	}	1181	}
		1182	_recalc_want;
763	};	1183	};
764		1184
765	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
767		1187
…		…
782	";	1202	";
783	die if $@;	1203	die if $@;
784	}	1204	}
785		1205
786	our $override;	1206	our $override;
787	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1207	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
788		1208
789	sub override {	1209	sub override {
790	$override = 1;	1210	$override = 1;
791	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
792	}	1212	}
793		1213
794	sub do_invoke {	1214	sub do_invoke {
795	my $event = shift;	1215	my $event = shift;
796	my $callbacks = shift;	1216	my $callbacks = shift;
797		1217
798	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
799		1219
800	local $override;	1220	local $override;
801		1221
802	for (@$callbacks) {	1222	for (@$callbacks) {
803	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
804		1224
805	if ($@) {	1225	if ($@) {
806	warn "$@";
807	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
808	override;	1227	override;
809	}	1228	}
810		1229
811	return 1 if $override;	1230	return 1 if $override;
812	}	1231	}
813		1232
814	0	1233	0
815	}	1234	}
816		1235
817	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
818		1237
819	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
820		1239
821	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
822		1241
823	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1242	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
824	removed in future versions), and there is no public API to access override	1243	removed in future versions), and there is no public API to access override
825	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		1245
827	=back	1246	=back
828		1247
829	=cut	1248	=cut
830		1249
831	#############################################################################	1250	#############################################################################
832	# object support	1251	# object support
		1252
		1253	sub _object_equal($$);
		1254	sub _object_equal($$) {
		1255	my ($a, $b) = @_;
		1256
		1257	return 0 unless (ref $a) eq (ref $b);
		1258
		1259	if ("HASH" eq ref $a) {
		1260	my @ka = keys %$a;
		1261	my @kb = keys %$b;
		1262
		1263	return 0 if @ka != @kb;
		1264
		1265	for (0 .. $#ka) {
		1266	return 0 unless $ka[$_] eq $kb[$_];
		1267	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1268	}
		1269
		1270	} elsif ("ARRAY" eq ref $a) {
		1271
		1272	return 0 if @$a != @$b;
		1273
		1274	for (0 .. $#$a) {
		1275	return 0 unless _object_equal $a->[$_], $b->[$_];
		1276	}
		1277
		1278	} elsif ($a ne $b) {
		1279	return 0;
		1280	}
		1281
		1282	1
		1283	}
		1284
		1285	our $SLOW_MERGES;#d#
		1286	sub _can_merge {
		1287	my ($ob1, $ob2) = @_;
		1288
		1289	++$SLOW_MERGES;#d#
		1290
		1291	# we do the slow way here
		1292	return _object_equal $ob1, $ob2
		1293	}
833		1294
834	sub reattach {	1295	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	1297	my ($obj) = @_;
		1298
		1299	# no longer needed after getting rid of delete_package?
		1300	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		1301
838	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
839		1303
840	@$registry = ();	1304	@$registry = ();
841		1305
…		…
846	for (@$attach) {	1310	for (@$attach) {
847	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
848	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
849	}	1313	}
850	} else {	1314	} else {
851	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
852	}	1316	}
853	}	1317	}
854	}	1318	}
855		1319
856	cf::attachable->attach (	1320	cf::attachable->attach (
857	prio => -1000000,	1321	prio => -1000000,
858	on_instantiate => sub {	1322	on_instantiate => sub {
859	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
860		1324
861	$data = from_json $data;	1325	$data = decode_json $data;
862		1326
863	for (@$data) {	1327	for (@$data) {
864	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
865		1329
866	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
882	sub object_freezer_save {	1346	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
884		1348
885	sync_job {	1349	sync_job {
886	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
889		1355
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1359	if ($cf::USE_FSYNC) {
		1360	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
893	aio_fsync $fh;	1361	aio_fsync $fh;
		1362	}
894	close $fh;	1363	aio_close $fh;
895		1364
896	if (@$objs) {	1365	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1366	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
		1370	if ($cf::USE_FSYNC) {
		1371	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
901	aio_fsync $fh;	1372	aio_fsync $fh;
		1373	}
902	close $fh;	1374	aio_close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
904	}	1376	}
905	} else {	1377	} else {
906	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
907	}	1379	}
908		1380
909	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
910	} else {	1385	} else {
911	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
912	}	1387	}
913	} else {	1388	} else {
914	aio_unlink $filename;	1389	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
916	}	1391	}
917	}	1392	};
918	}	1393	}
919		1394
920	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
922		1397
…		…
934	or return;	1409	or return;
935		1410
936	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
938	or return;	1413	or return;
		1414
939	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
940	}	1417	}
941		1418
		1419	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
944	return ($data, $av);	1424	($data, $av)
945	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
946		1432
947	#############################################################################	1433	#############################################################################
948	# command handling &c	1434	# command handling &c
949		1435
950	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args)
951		1437
952	Register a callback for execution when the client sends the user command	1438	Register a callback for execution when the client sends the user command
953	$name.	1439	$name.
954		1440
955	=cut	1441	=cut
…		…
961	#warn "registering command '$name/$time' to '$caller'";	1447	#warn "registering command '$name/$time' to '$caller'";
962		1448
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1450	}
965		1451
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet)
967		1453
968	Register a callbackf ro execution when the client sends an extcmd packet.	1454	Register a callback for execution when the client sends an (synchronous)
		1455	extcmd packet. Ext commands will be processed in the order they are
		1456	received by the server, like other user commands. The first argument is
		1457	the logged-in player. Ext commands can only be processed after a player
		1458	has logged in successfully.
969		1459
970	If the callback returns something, it is sent back as if reply was being	1460	If the callback returns something, it is sent back as if reply was being
971	called.	1461	called.
972		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet)
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
973	=cut	1474	=cut
974		1475
975	sub register_extcmd {	1476	sub register_extcmd {
976	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
977		1478
978	$EXTCMD{$name} = $cb;	1479	$EXTCMD{$name} = $cb;
979	}	1480	}
980		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
		1489
981	cf::player->attach (	1490	cf::player->attach (
982	on_command => sub {	1491	on_unknown_command => sub {
983	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
984		1493
985	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
986	or return;	1495	or return;
987		1496
…		…
992	cf::override;	1501	cf::override;
993	},	1502	},
994	on_extcmd => sub {	1503	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
996		1505
997	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1507
999	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1515	}
		1516
		1517	$pl->ext_msg ("reply-$reply", @reply)
		1518	if $reply;
		1519
1005	} else {	1520	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1522	}
1008		1523
1009	cf::override;	1524	cf::override;
1010	},	1525	},
1011	);	1526	);
1012		1527
		1528	# "readahead" all extensions
1013	sub load_extension {	1529	sub cache_extensions {
1014	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
1015		1531
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1017	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
1018	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1019	$pkg =~ s/[^[:word:]]/_/g;	1535	}
1020	$pkg = "ext::$pkg";	1536	};
1021		1537
1022	warn "... loading '$path' into '$pkg'\n";	1538	$grp
		1539	}
1023		1540
1024	open my $fh, "<:utf8", $path	1541	sub _ext_cfg_reg($$$$) {
1025	or die "$path: $!";	1542	my ($rvar, $varname, $cfgname, $default) = @_;
1026		1543
1027	my $source =	1544	$cfgname = lc $varname
1028	"package $pkg; use strict; use utf8;\n"	1545	unless length $cfgname;
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032		1546
1033	eval $source	1547	$EXT_CFG{$cfgname} = [$rvar, $default];
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036		1548
1037	push @EXTS, $pkg;	1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1038	}	1550	}
1039		1551
1040	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
1041	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1561	next unless -r $path;
1043	eval {	1562
1044	load_extension $ext;	1563	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1564	my $base = $1;
		1565	my $pkg = $1;
		1566	$pkg =~ s/[^[:word:]]/_/g;
		1567	$pkg = "ext::$pkg";
		1568
		1569	open my $fh, "<:utf8", $path
		1570	or die "$path: $!";
		1571
		1572	my $source = do { local $/; <$fh> };
		1573
		1574	my %ext = (
		1575	path => $path,
		1576	base => $base,
		1577	pkg => $pkg,
		1578	);
		1579
		1580	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1581	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1582
		1583	$ext{source} =
		1584	"package $pkg; use common::sense;\n"
		1585	. "#line 1 \"$path\"\n{\n"
		1586	. $source
		1587	. "\n};\n1";
		1588
		1589	$todo{$base} = \%ext;
		1590	}
		1591
		1592	my $pass = 0;
		1593	my %done;
		1594	while (%todo) {
		1595	my $progress;
		1596
		1597	++$pass;
		1598
		1599	ext:
		1600	while (my ($k, $v) = each %todo) {
		1601	for (split /,\s*/, $v->{meta}{depends}) {
		1602	next ext
		1603	unless exists $done{$_};
		1604	}
		1605
		1606	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1607
		1608	my $source = $v->{source};
		1609
		1610	# support "CONF varname :confname = default" pseudo-statements
		1611	$source =~ s{
		1612	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1613	}{
		1614	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1615	}gmxe;
		1616
		1617	my $active = eval $source;
		1618
		1619	if (length $@) {
		1620	error "$v->{path}: $@\n";
		1621
		1622	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1623	if exists $v->{meta}{mandatory};
		1624
		1625	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1626	delete $todo{$k};
		1627	} else {
		1628	$done{$k} = delete $todo{$k};
		1629	push @EXTS, $v->{pkg};
		1630	$progress = 1;
		1631
		1632	info "$v->{base}: extension inactive.\n"
		1633	unless $active;
		1634	}
1045	1	1635	}
1046	} or warn "$ext not loaded: $@";	1636
		1637	unless ($progress) {
		1638	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1639
		1640	while (my ($k, $v) = each %todo) {
		1641	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1642	if exists $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
		1647	}
1047	}	1648	};
1048	}	1649	}
1049		1650
1050	#############################################################################	1651	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1652
1053	*cf::mapsupport::on_clean = sub {	1653	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1654
1066	=head2 CORE EXTENSIONS	1655	=head2 CORE EXTENSIONS
1067		1656
1068	Functions and methods that extend core crossfire objects.	1657	Functions and methods that extend core deliantra objects.
1069		1658
1070	=cut	1659	=cut
1071		1660
1072	package cf::player;	1661	package cf::player;
1073		1662
…		…
1075		1664
1076	=head3 cf::player	1665	=head3 cf::player
1077		1666
1078	=over 4	1667	=over 4
1079		1668
		1669	=item cf::player::num_playing
		1670
		1671	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1672
		1673	=cut
		1674
		1675	sub num_playing {
		1676	scalar grep
		1677	$_->ob->map
		1678	&& !$_->hidden
		1679	&& !$_->ob->flag (cf::FLAG_WIZ),
		1680	cf::player::list
		1681	}
		1682
1080	=item cf::player::find $login	1683	=item cf::player::find $login
1081		1684
1082	Returns the given player object, loading it if necessary (might block).	1685	Returns the given player object, loading it if necessary (might block).
1083		1686
1084	=cut	1687	=cut
1085		1688
1086	sub playerdir($) {	1689	sub playerdir($) {
1087	cf::localdir	1690	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1691	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1692	}
1093		1693
1094	sub path($) {	1694	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1695	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1696
1097	(playerdir $login) . "/$login.pl"	1697	(playerdir $login) . "/playerdata"
1098	}	1698	}
1099		1699
1100	sub find_active($) {	1700	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1701	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1702	and $cf::PLAYER{$_[0]}->active
…		…
1105		1705
1106	sub exists($) {	1706	sub exists($) {
1107	my ($login) = @_;	1707	my ($login) = @_;
1108		1708
1109	$cf::PLAYER{$login}	1709	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1710	or !aio_stat path $login
1111	}	1711	}
1112		1712
1113	sub find($) {	1713	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1714	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1715	my $login = $_[0];
1116		1716
1117	my $guard = cf::lock_acquire "user_find:$login";	1717	my $guard = cf::lock_acquire "user_find:$login";
1118		1718
1119	$cf::PLAYER{$_[0]} || do {	1719	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1720	# rename old playerfiles to new ones
		1721	#TODO: remove when no longer required
		1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1725	aio_unlink +(playerdir $login) . "/$login.pl";
		1726
		1727	my $f = new_from_file cf::object::thawer path $login
1121	or return;	1728	or return;
		1729
		1730	my $pl = cf::player::load_pl $f
		1731	or return;
		1732
		1733	local $cf::PLAYER_LOADING{$login} = $pl;
		1734	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1735	$cf::PLAYER{$login} = $pl
1123	}	1736	}
1124	}	1737	}
1125	}	1738	}
		1739
		1740	cf::player->attach (
		1741	on_load => sub {
		1742	my ($pl, $path) = @_;
		1743
		1744	# restore slots saved in save, below
		1745	my $slots = delete $pl->{_slots};
		1746
		1747	$pl->ob->current_weapon ($slots->[0]);
		1748	$pl->combat_ob ($slots->[1]);
		1749	$pl->ranged_ob ($slots->[2]);
		1750	},
		1751	);
1126		1752
1127	sub save($) {	1753	sub save($) {
1128	my ($pl) = @_;	1754	my ($pl) = @_;
1129		1755
1130	return if $pl->{deny_save};	1756	return if $pl->{deny_save};
…		…
1135	return if $pl->{deny_save};	1761	return if $pl->{deny_save};
1136		1762
1137	aio_mkdir playerdir $pl, 0770;	1763	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1764	$pl->{last_save} = $cf::RUNTIME;
1139		1765
		1766	cf::get_slot 0.01;
		1767
		1768	# save slots, to be restored later
		1769	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1770
1140	$pl->save_pl ($path);	1771	$pl->save_pl ($path);
1141	Coro::cede;	1772	cf::cede_to_tick;
1142	}	1773	}
1143		1774
1144	sub new($) {	1775	sub new($) {
1145	my ($login) = @_;	1776	my ($login) = @_;
1146		1777
…		…
1152	$cf::PLAYER{$login} = $self;	1783	$cf::PLAYER{$login} = $self;
1153		1784
1154	$self	1785	$self
1155	}	1786	}
1156		1787
		1788	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1789
		1790	=cut
		1791
		1792	sub send_msg {
		1793	my $ns = shift->ns
		1794	or return;
		1795	$ns->send_msg (@_);
		1796	}
		1797
1157	=item $pl->quit_character	1798	=item $pl->quit_character
1158		1799
1159	Nukes the player without looking back. If logged in, the connection will	1800	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1801	be destroyed. May block for a long time.
1161		1802
1162	=cut	1803	=cut
1163		1804
1164	sub quit_character {	1805	sub quit_character {
1165	my ($pl) = @_;	1806	my ($pl) = @_;
1166		1807
		1808	my $name = $pl->ob->name;
		1809
1167	$pl->{deny_save} = 1;	1810	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1811	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1169		1812
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1171	$pl->deactivate;	1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1172	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
1173	$pl->ns->destroy if $pl->ns;	1820	$pl->ns->destroy if $pl->ns;
1174		1821
1175	my $path = playerdir $pl;	1822	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1823	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1824	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1825	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1826	$pl->destroy;
		1827
		1828	my $prefix = qr<^~\Q$name\E/>;
		1829
		1830	# nuke player maps
		1831	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1832
1180	IO::AIO::aio_rmtree $temp;	1833	IO::AIO::aio_rmtree $temp;
		1834	}
		1835
		1836	=item $pl->kick
		1837
		1838	Kicks a player out of the game. This destroys the connection.
		1839
		1840	=cut
		1841
		1842	sub kick {
		1843	my ($pl, $kicker) = @_;
		1844
		1845	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1846	$pl->killer ("kicked");
		1847	$pl->ns->destroy;
1181	}	1848	}
1182		1849
1183	=item cf::player::list_logins	1850	=item cf::player::list_logins
1184		1851
1185	Returns am arrayref of all valid playernames in the system, can take a	1852	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1853	while and may block, so not sync_job-capable, ever.
1187		1854
1188	=cut	1855	=cut
1189		1856
1190	sub list_logins {	1857	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1858	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1859	or return [];
1193		1860
1194	my @logins;	1861	my @logins;
1195		1862
1196	for my $login (@$dirs) {	1863	for my $login (@$dirs) {
		1864	my $path = path $login;
		1865
		1866	# a .pst is a dead give-away for a valid player
		1867	# if no pst file found, open and chekc for blocked users
		1868	if (aio_stat "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1870	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
1200		1873
1201	utf8::decode $login;	1874	utf8::decode $login;
1202	push @logins, $login;	1875	push @logins, $login;
1203	}	1876	}
1204		1877
1205	\@logins	1878	\@logins
1206	}	1879	}
1207		1880
1208	=item $player->maps	1881	=item $player->maps
1209		1882
		1883	=item cf::player::maps $login
		1884
1210	Returns an arrayref of cf::path's of all maps that are private for this	1885	Returns an arrayref of map paths that are private for this
1211	player. May block.	1886	player. May block.
1212		1887
1213	=cut	1888	=cut
1214		1889
1215	sub maps($) {	1890	sub maps($) {
1216	my ($pl) = @_;	1891	my ($pl) = @_;
		1892
		1893	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1894
1218	my $files = aio_readdir playerdir $pl	1895	my $files = aio_readdir playerdir $pl
1219	or return;	1896	or return;
1220		1897
1221	my @paths;	1898	my @paths;
…		…
1223	for (@$files) {	1900	for (@$files) {
1224	utf8::decode $_;	1901	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1902	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1903	next unless /^$PATH_SEP/o;
1227		1904
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1905	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1906	}
1230		1907
1231	\@paths	1908	\@paths
1232	}	1909	}
1233		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1915	=item $player->ext_msg ($type, @msg)
1235		1916
1236	Sends an ext reply to the player.	1917	Sends an ext event to the client.
1237		1918
1238	=cut	1919	=cut
1239		1920
1240	sub ext_reply($$$%) {	1921	sub ext_msg($$@) {
1241	my ($self, $id, %msg) = @_;	1922	my ($self, $type, @msg) = @_;
1242		1923
1243	$msg{msgid} = $id;	1924	$self->ns->ext_msg ($type, @msg);
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1925	}
1247		1926
1248	package cf;	1927	=head3 cf::region
		1928
		1929	=over 4
		1930
		1931	=cut
		1932
		1933	package cf::region;
		1934
		1935	=item cf::region::find_by_path $path
		1936
		1937	Tries to decuce the likely region for a map knowing only its path.
		1938
		1939	=cut
		1940
		1941	sub find_by_path($) {
		1942	my ($path) = @_;
		1943
		1944	$path =~ s/^~[^\/]*//; # skip ~login
		1945
		1946	my ($match, $specificity);
		1947
		1948	for my $region (list) {
		1949	if ($region->{match} && $path =~ $region->{match}) {
		1950	($match, $specificity) = ($region, $region->specificity)
		1951	if $region->specificity > $specificity;
		1952	}
		1953	}
		1954
		1955	$match
		1956	}
1249		1957
1250	=back	1958	=back
1251
1252		1959
1253	=head3 cf::map	1960	=head3 cf::map
1254		1961
1255	=over 4	1962	=over 4
1256		1963
…		…
1259	package cf::map;	1966	package cf::map;
1260		1967
1261	use Fcntl;	1968	use Fcntl;
1262	use Coro::AIO;	1969	use Coro::AIO;
1263		1970
		1971	use overload
		1972	'""' => \&as_string,
		1973	fallback => 1;
		1974
1264	our $MAX_RESET = 3600;	1975	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1976	our $DEFAULT_RESET = 3000;
1266		1977
1267	sub generate_random_map {	1978	sub generate_random_map {
		1979	my ($self, $rmp) = @_;
		1980
		1981	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1982
		1983	$self->_create_random_map ($rmp);
		1984	}
		1985
		1986	=item cf::map->register ($regex, $prio)
		1987
		1988	Register a handler for the map path matching the given regex at the
		1989	givne priority (higher is better, built-in handlers have priority 0, the
		1990	default).
		1991
		1992	=cut
		1993
		1994	sub register {
		1995	my (undef, $regex, $prio) = @_;
		1996	my $pkg = caller;
		1997
		1998	push @{"$pkg\::ISA"}, __PACKAGE__;
		1999
		2000	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2001	}
		2002
		2003	# also paths starting with '/'
		2004	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2005
		2006	sub thawer_merge {
		2007	my ($self, $merge) = @_;
		2008
		2009	# we have to keep some variables in memory intact
		2010	local $self->{path};
		2011	local $self->{load_path};
		2012
		2013	$self->SUPER::thawer_merge ($merge);
		2014	}
		2015
		2016	sub normalise {
1268	my ($path, $rmp) = @_;	2017	my ($path, $base) = @_;
1269		2018
1270	# mit "rum" bekleckern, nicht	2019	$path = "$path"; # make sure it's a string
1271	cf::map::_create_random_map (	2020
		2021	$path =~ s/\.map$//;
		2022
		2023	# map plan:
		2024	#
		2025	# /! non-realised random map exit (special hack!)
		2026	# {... are special paths that are not being touched
		2027	# ?xxx/... are special absolute paths
		2028	# ?random/... random maps
		2029	# /... normal maps
		2030	# ~user/... per-player map of a specific user
		2031
		2032	$path =~ s/$PATH_SEP/\//go;
		2033
		2034	# treat it as relative path if it starts with
		2035	# something that looks reasonable
		2036	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2037	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2038
		2039	$base =~ s{[^/]+/?$}{};
		2040	$path = "$base/$path";
		2041	}
		2042
		2043	for ($path) {
		2044	redo if s{/\.?/}{/};
		2045	redo if s{/[^/]+/\.\./}{/};
		2046	}
		2047
1272	$path,	2048	$path
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	2049	}
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	2050
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	2051	sub new_from_path {
1276	$rmp->{exit_on_final_map},	2052	my (undef, $path, $base) = @_;
1277	$rmp->{xsize}, $rmp->{ysize},	2053
1278	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	2054	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1279	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	2055
1280	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	2056	$path = normalise $path, $base;
1281	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	2057
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	2058	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	2059	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2060	my $self = bless cf::map::new, $pkg;
		2061	$self->{path} = $path; $self->path ($path);
		2062	$self->init; # pass $1 etc.
		2063	return $self;
		2064	}
		2065	}
		2066
		2067	Carp::cluck "unable to resolve path '$path' (base '$base')";
1284	)	2068	()
1285	}	2069	}
1286		2070
1287	# and all this just because we cannot iterate over	2071	# may re-bless or do other evil things
1288	# all maps in C++...	2072	sub init {
1289	sub change_all_map_light {
1290	my ($change) = @_;	2073	my ($self) = @_;
1291		2074
1292	$_->change_map_light ($change)	2075	$self
1293	for grep $_->outdoor, values %cf::MAP;
1294	}	2076	}
1295		2077
		2078	sub as_string {
		2079	my ($self) = @_;
		2080
		2081	"$self->{path}"
		2082	}
		2083
		2084	# the displayed name, this is a one way mapping
		2085	sub visible_name {
		2086	&as_string
		2087	}
		2088
		2089	# the original (read-only) location
		2090	sub load_path {
		2091	my ($self) = @_;
		2092
		2093	"$MAPDIR/$self->{path}.map"
		2094	}
		2095
		2096	# the temporary/swap location
		2097	sub save_path {
		2098	my ($self) = @_;
		2099
		2100	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2101	"$TMPDIR/$path.map"
		2102	}
		2103
		2104	# the unique path, undef == no special unique path
		2105	sub uniq_path {
		2106	my ($self) = @_;
		2107
		2108	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2109	"$UNIQUEDIR/$path"
		2110	}
		2111
		2112	sub decay_objects {
		2113	my ($self) = @_;
		2114
		2115	return if $self->{deny_reset};
		2116
		2117	$self->do_decay_objects;
		2118	}
		2119
		2120	sub unlink_save {
		2121	my ($self) = @_;
		2122
		2123	utf8::encode (my $save = $self->save_path);
		2124	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2125	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2126	}
		2127
1296	sub load_map_header($) {	2128	sub load_header_from($) {
1297	my ($path) = @_;	2129	my ($self, $path) = @_;
1298		2130
1299	utf8::encode $path;	2131	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	2132	my $f = new_from_file cf::object::thawer $path
1301	or return;	2133	or return;
1302		2134
1303	my $map = cf::map::new	2135	$self->_load_header ($f)
1304	or return;	2136	or return;
1305		2137
1306	# for better error messages only, will be overwritten later	2138	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	2139	$f->resolve_delayed_derefs;
1308		2140
1309	$map->load_header ($path)	2141	$self->{load_path} = $path;
		2142
		2143	1
		2144	}
		2145
		2146	# used to laod the header of an original map
		2147	sub load_header_orig {
		2148	my ($self) = @_;
		2149
		2150	$self->load_header_from ($self->load_path)
		2151	}
		2152
		2153	# used to laod the header of an instantiated map
		2154	sub load_header_temp {
		2155	my ($self) = @_;
		2156
		2157	$self->load_header_from ($self->save_path)
		2158	}
		2159
		2160	# called after loading the header from an instantiated map
		2161	sub prepare_temp {
		2162	my ($self) = @_;
		2163
		2164	$self->last_access ((delete $self->{last_access})
		2165	|| $cf::RUNTIME); #d#
		2166	# safety
		2167	$self->{instantiate_time} = $cf::RUNTIME
		2168	if $self->{instantiate_time} > $cf::RUNTIME;
		2169	}
		2170
		2171	# called after loading the header from an original map
		2172	sub prepare_orig {
		2173	my ($self) = @_;
		2174
		2175	$self->{load_original} = 1;
		2176	$self->{instantiate_time} = $cf::RUNTIME;
		2177	$self->last_access ($cf::RUNTIME);
		2178	$self->instantiate;
		2179	}
		2180
		2181	sub load_header {
		2182	my ($self) = @_;
		2183
		2184	if ($self->load_header_temp) {
		2185	$self->prepare_temp;
		2186	} else {
		2187	$self->load_header_orig
1310	or return;	2188	or return;
		2189	$self->prepare_orig;
		2190	}
1311		2191
1312	$map->{load_path} = $path;	2192	$self->{deny_reset} = 1
		2193	if $self->no_reset;
1313		2194
1314	$map	2195	$self->default_region (cf::region::find_by_path $self->{path})
		2196	unless $self->default_region;
		2197
		2198	1
1315	}	2199	}
1316		2200
1317	sub find;	2201	sub find;
1318	sub find {	2202	sub find {
1319	my ($path, $origin) = @_;	2203	my ($path, $origin) = @_;
1320		2204
1321	#warn "find<$path,$origin>\n";#d#	2205	cf::cede_to_tick;
1322		2206
1323	$path = new cf::path $path, $origin && $origin->path;	2207	$path = normalise $path, $origin;
1324	my $key = $path->as_string;
1325		2208
1326	cf::lock_wait "map_find:$key";	2209	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1327
1328	$cf::MAP{$key} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	2210	my $guard2 = cf::lock_acquire "map_find:$path";
1330		2211
1331	# do it the slow way	2212	$cf::MAP{$path} || do {
1332	my $map = $path->load_temp;	2213	my $map = new_from_path cf::map $path
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	2214	or return;
1345		2215
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	2216	$map->{last_save} = $cf::RUNTIME;
1358		2217
1359	Coro::cede;	2218	$map->load_header
		2219	or return;
1360		2220
1361	if ($map->should_reset) {	2221	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2222	# doing this can freeze the server in a sync job, obviously
		2223	#$cf::WAIT_FOR_TICK->wait;
		2224	undef $guard2;
		2225	undef $guard1;
1362	$map->reset;	2226	$map->reset;
1363	undef $guard;
1364	$map = find $path	2227	return find $path;
1365	or return;
1366	}	2228	}
1367		2229
1368	$cf::MAP{$key} = $map	2230	$cf::MAP{$path} = $map
1369	}	2231	}
1370	}	2232	}
		2233
		2234	sub pre_load { }
		2235	#sub post_load { } # XS
1371		2236
1372	sub load {	2237	sub load {
1373	my ($self) = @_;	2238	my ($self) = @_;
1374		2239
		2240	local $self->{deny_reset} = 1; # loading can take a long time
		2241
1375	my $path = $self->{path};	2242	my $path = $self->{path};
		2243
		2244	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2245	my $guard = cf::lock_acquire "map_data:$path";
1377		2246
1378	return if $self->in_memory != cf::MAP_SWAPPED;	2247	return unless $self->valid;
		2248	return unless $self->state == cf::MAP_SWAPPED;
1379		2249
1380	$self->in_memory (cf::MAP_LOADING);
1381
1382	$self->alloc;	2250	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	2251
		2252	$self->pre_load;
		2253	cf::cede_to_tick;
		2254
		2255	if (exists $self->{load_path}) {
		2256	my $f = new_from_file cf::object::thawer $self->{load_path};
		2257	$f->skip_block;
		2258	$self->_load_objects ($f)
1384	or return;	2259	or return;
1385		2260
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2261	$self->post_load_original
1387	if delete $self->{load_original};	2262	if delete $self->{load_original};
1388		2263
1389	if (my $uniq = $path->uniq_path) {	2264	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	2265	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	2266	unless (aio_stat $uniq) {
		2267	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	2268	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	2269	$self->_load_objects ($f);
		2270	$f->resolve_delayed_derefs;
		2271	}
		2272	}
1394	}	2273	}
1395	}
1396		2274
1397	Coro::cede;	2275	$f->resolve_delayed_derefs;
		2276	} else {
		2277	$self->post_load_original
		2278	if delete $self->{load_original};
		2279	}
1398		2280
		2281	$self->state (cf::MAP_INACTIVE);
		2282
		2283	cf::cede_to_tick;
1399	# now do the right thing for maps	2284	# now do the right thing for maps
1400	$self->link_multipart_objects;	2285	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	2286	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	2287	unless $self->difficulty;
1412	$self->activate;	2288	cf::cede_to_tick;
		2289
		2290	unless ($self->{deny_activate}) {
		2291	$self->decay_objects;
		2292	$self->fix_auto_apply;
		2293	$self->update_buttons;
		2294	cf::cede_to_tick;
		2295	#$self->activate; # no longer activate maps automatically
		2296	}
		2297
		2298	$self->{last_save} = $cf::RUNTIME;
		2299	$self->last_access ($cf::RUNTIME);
		2300	}
		2301
		2302	$self->post_load;
		2303
1413	}	2304	1
1414
1415	Coro::cede;
1416
1417	$self->in_memory (cf::MAP_IN_MEMORY);
1418	}	2305	}
1419		2306
1420	# find and load all maps in the 3x3 area around a map	2307	# customize the map for a given player, i.e.
1421	sub load_diag {	2308	# return the _real_ map. used by e.g. per-player
1422	my ($map) = @_;	2309	# maps to change the path to ~playername/mappath
		2310	sub customise_for {
		2311	my ($self, $ob) = @_;
1423		2312
1424	my @diag; # diagonal neighbours	2313	return find "~" . $ob->name . "/" . $self->{path}
		2314	if $self->per_player;
1425		2315
1426	for (0 .. 3) {	2316	# return find "?party/" . $ob->name . "/" . $self->{path}
1427	my $neigh = $map->tile_path ($_)	2317	# if $self->per_party;
1428	or next;
1429	$neigh = find $neigh, $map
1430	or next;
1431	$neigh->load;
1432		2318
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2319	$self
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}
1436
1437	for (@diag) {
1438	my $neigh = find @$_
1439	or next;
1440	$neigh->load;
1441	}
1442	}	2320	}
1443		2321
1444	sub find_sync {	2322	sub find_sync {
1445	my ($path, $origin) = @_;	2323	my ($path, $origin) = @_;
1446		2324
1447	cf::sync_job { find $path, $origin }	2325	# it's a bug to call this from the main context
		2326	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2327	if $Coro::current == $Coro::main;
		2328
		2329	find $path, $origin
1448	}	2330	}
1449		2331
1450	sub do_load_sync {	2332	sub do_load_sync {
1451	my ($map) = @_;	2333	my ($map) = @_;
1452		2334
1453	cf::sync_job { $map->load };	2335	# it's a bug to call this from the main context
		2336	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2337	if $Coro::current == $Coro::main;
		2338
		2339	$map->load;
1454	}	2340	}
1455		2341
1456	our %MAP_PREFETCH;	2342	our %MAP_PREFETCH;
		2343	our $MAP_PREFETCHER = undef;
		2344
		2345	sub find_async {
		2346	my ($path, $origin, $load) = @_;
		2347
		2348	$path = normalise $path, $origin;
		2349
		2350	if (my $map = $cf::MAP{$path}) {
		2351	return $map if !$load || $map->linkable;
		2352	}
		2353
		2354	$MAP_PREFETCH{$path} |= $load;
		2355
1457	our $MAP_PREFETCHER = Coro::async {	2356	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2357	$Coro::current->{desc} = "map prefetcher";
		2358
1459	while (%MAP_PREFETCH) {	2359	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2360	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2361	if (my $map = find $k) {
		2362	$map->load if $v;
		2363	}
		2364
1462	my $path = delete $MAP_PREFETCH{$key};	2365	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2366	}
1468	Coro::schedule;	2367	}
		2368	undef $MAP_PREFETCHER;
1469	}	2369	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2370	$MAP_PREFETCHER->prio (6);
1484		2371
1485	()	2372	()
		2373	}
		2374
		2375	# common code, used by both ->save and ->swapout
		2376	sub _save {
		2377	my ($self) = @_;
		2378
		2379	$self->{last_save} = $cf::RUNTIME;
		2380
		2381	return unless $self->dirty;
		2382
		2383	my $save = $self->save_path; utf8::encode $save;
		2384	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2385
		2386	$self->{load_path} = $save;
		2387
		2388	return if $self->{deny_save};
		2389
		2390	local $self->{last_access} = $self->last_access;#d#
		2391
		2392	cf::async {
		2393	$Coro::current->{desc} = "map player save";
		2394	$_->contr->save for $self->players;
		2395	};
		2396
		2397	cf::get_slot 0.02;
		2398
		2399	if ($uniq) {
		2400	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2401	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2402	} else {
		2403	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2404	}
1486	}	2405	}
1487		2406
1488	sub save {	2407	sub save {
1489	my ($self) = @_;	2408	my ($self) = @_;
1490		2409
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2410	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2411
1493	$self->{last_save} = $cf::RUNTIME;	2412	$self->_save;
1494
1495	return unless $self->dirty;
1496
1497	my $save = $self->{path}->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1499
1500	$self->{load_path} = $save;
1501
1502	return if $self->{deny_save};
1503
1504	local $self->{last_access} = $self->last_access;#d#
1505
1506	cf::async {
1507	$_->contr->save for $self->players;
1508	};
1509
1510	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}
1516	}	2413	}
1517		2414
1518	sub swap_out {	2415	sub swap_out {
1519	my ($self) = @_;	2416	my ($self) = @_;
1520		2417
1521	# save first because save cedes
1522	$self->save;
1523
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2418	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2419
		2420	return if !$self->linkable;
		2421	return if $self->{deny_save};
1526	return if $self->players;	2422	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};
1529		2423
		2424	# first deactivate the map and "unlink" it from the core
		2425	$self->deactivate;
		2426	$_->clear_links_to ($self) for values %cf::MAP;
		2427	$self->state (cf::MAP_SWAPPED);
		2428
		2429	# then atomically save
		2430	$self->_save;
		2431
		2432	# then free the map
1530	$self->clear;	2433	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2434	}
1533		2435
1534	sub reset_at {	2436	sub reset_at {
1535	my ($self) = @_;	2437	my ($self) = @_;
1536		2438
1537	# TODO: safety, remove and allow resettable per-player maps	2439	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2440	return 1e99 if $self->{deny_reset};
1540		2441
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2442	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2443	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2444
…		…
1548	my ($self) = @_;	2449	my ($self) = @_;
1549		2450
1550	$self->reset_at <= $cf::RUNTIME	2451	$self->reset_at <= $cf::RUNTIME
1551	}	2452	}
1552		2453
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2454	sub reset {
1575	my ($self) = @_;	2455	my ($self) = @_;
1576		2456
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2457	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2458
1579	return if $self->players;	2459	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2460
1582	warn "resetting map ", $self->path;#d#	2461	cf::trace "resetting map ", $self->path, "\n";
		2462
		2463	$self->state (cf::MAP_SWAPPED);
		2464
		2465	# need to save uniques path
		2466	unless ($self->{deny_save}) {
		2467	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2468
		2469	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2470	if $uniq;
		2471	}
1583		2472
1584	delete $cf::MAP{$self->path};	2473	delete $cf::MAP{$self->path};
1585		2474
		2475	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2476	$_->clear_links_to ($self) for values %cf::MAP;
		2477	$self->clear;
1587		2478
1588	$self->unlink_save;	2479	$self->unlink_save;
1589	$self->destroy;	2480	$self->destroy;
1590	}	2481	}
1591		2482
1592	my $nuke_counter = "aaaa";	2483	my $nuke_counter = "aaaa";
1593		2484
1594	sub nuke {	2485	sub nuke {
1595	my ($self) = @_;	2486	my ($self) = @_;
1596		2487
		2488	{
		2489	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2490
		2491	delete $cf::MAP{$self->path};
		2492
		2493	$self->unlink_save;
		2494
		2495	bless $self, "cf::map::wrap";
		2496	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2497	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2498	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2499	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2500
		2501	$cf::MAP{$self->path} = $self;
		2502	}
		2503
1600	$self->reset; # polite request, might not happen	2504	$self->reset; # polite request, might not happen
1601	}	2505	}
1602		2506
1603	sub customise_for {	2507	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2508
1606	if ($map->per_player) {	2509	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2510	maps. May block.
		2511
		2512	=cut
		2513
		2514	sub tmp_maps() {
1608	}	2515	[
		2516	map {
		2517	utf8::decode $_;
		2518	/\.map$/
		2519	? normalise $_
		2520	: ()
		2521	} @{ aio_readdir $TMPDIR or [] }
		2522	]
		2523	}
1609		2524
1610	$map	2525	=item $maps = cf::map::random_maps
		2526
		2527	Returns an arrayref with all map paths of currently instantiated and saved
		2528	random maps. May block.
		2529
		2530	=cut
		2531
		2532	sub random_maps() {
		2533	[
		2534	map {
		2535	utf8::decode $_;
		2536	/\.map$/
		2537	? normalise "?random/$_"
		2538	: ()
		2539	} @{ aio_readdir $RANDOMDIR or [] }
		2540	]
1611	}	2541	}
1612		2542
1613	=item cf::map::unique_maps	2543	=item cf::map::unique_maps
1614		2544
1615	Returns an arrayref of cf::path's of all shared maps that have	2545	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2546	instantiated unique items. May block.
1617		2547
1618	=cut	2548	=cut
1619		2549
1620	sub unique_maps() {	2550	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2551	[
1622	or return;	2552	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2553	utf8::decode $_;
1628	next if /\.pst$/;	2554	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2555	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2556	? ()
1631	push @paths, new cf::path $_;	2557	: normalise $_
		2558	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2559	]
1633
1634	\@paths
1635	}	2560	}
1636		2561
1637	package cf;	2562	=item cf::map::static_maps
		2563
		2564	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2565	file in the shared directory excluding F</styles> and F</editor>). May
		2566	block.
		2567
		2568	=cut
		2569
		2570	sub static_maps() {
		2571	my @dirs = "";
		2572	my @maps;
		2573
		2574	while (@dirs) {
		2575	my $dir = shift @dirs;
		2576
		2577	next if $dir eq "/styles" || $dir eq "/editor";
		2578
		2579	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2580	or return;
		2581
		2582	for (@$files) {
		2583	s/\.map$// or next;
		2584	utf8::decode $_;
		2585	push @maps, "$dir/$_";
		2586	}
		2587
		2588	push @dirs, map "$dir/$_", @$dirs;
		2589	}
		2590
		2591	\@maps
		2592	}
1638		2593
1639	=back	2594	=back
1640		2595
1641	=head3 cf::object	2596	=head3 cf::object
1642		2597
…		…
1646		2601
1647	=over 4	2602	=over 4
1648		2603
1649	=item $ob->inv_recursive	2604	=item $ob->inv_recursive
1650		2605
1651	Returns the inventory of the object _and_ their inventories, recursively.	2606	Returns the inventory of the object I<and> their inventories, recursively,
		2607	but I<not> the object itself.
1652		2608
1653	=cut	2609	=cut
1654		2610
1655	sub inv_recursive_;	2611	sub inv_recursive_;
1656	sub inv_recursive_ {	2612	sub inv_recursive_ {
…		…
1659		2615
1660	sub inv_recursive {	2616	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2617	inv_recursive_ inv $_[0]
1662	}	2618	}
1663		2619
		2620	=item $ref = $ob->ref
		2621
		2622	Creates and returns a persistent reference to an object that can be stored as a string.
		2623
		2624	=item $ob = cf::object::deref ($refstring)
		2625
		2626	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2627	even if the object actually exists. May block.
		2628
		2629	=cut
		2630
		2631	sub deref {
		2632	my ($ref) = @_;
		2633
		2634	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2635	my ($uuid, $name) = ($1, $2);
		2636	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2637	or return;
		2638	$pl->ob->uuid eq $uuid
		2639	or return;
		2640
		2641	$pl->ob
		2642	} else {
		2643	warn "$ref: cannot resolve object reference\n";
		2644	undef
		2645	}
		2646	}
		2647
1664	package cf;	2648	package cf;
1665		2649
1666	=back	2650	=back
1667		2651
1668	=head3 cf::object::player	2652	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2658	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2659	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2660	dialogue with the given NPC character.
1677		2661
1678	=cut	2662	=cut
		2663
		2664	our $SAY_CHANNEL = {
		2665	id => "say",
		2666	title => "Map",
		2667	reply => "say ",
		2668	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2669	};
		2670
		2671	our $CHAT_CHANNEL = {
		2672	id => "chat",
		2673	title => "Chat",
		2674	reply => "chat ",
		2675	tooltip => "Player chat and shouts, global to the server.",
		2676	};
1679		2677
1680	# rough implementation of a future "reply" method that works	2678	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2679	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2680	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2681	sub cf::object::player::reply($$$;$) {
…		…
1685		2683
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2684	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2685
1688	if ($self->{record_replies}) {	2686	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2687	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2688
1690	} else {	2689	} else {
		2690	my $pl = $self->contr;
		2691
		2692	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2693	my $dialog = $pl->{npc_dialog};
		2694	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2695
		2696	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2697	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2698	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2699	}
1693	}	2700	}
		2701	}
		2702
		2703	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2704
		2705	=cut
		2706
		2707	sub cf::object::send_msg {
		2708	my $pl = shift->contr
		2709	or return;
		2710	$pl->send_msg (@_);
1694	}	2711	}
1695		2712
1696	=item $player_object->may ("access")	2713	=item $player_object->may ("access")
1697		2714
1698	Returns wether the given player is authorized to access resource "access"	2715	Returns wether the given player is authorized to access resource "access"
…		…
1711		2728
1712	=item $player_object->enter_link	2729	=item $player_object->enter_link
1713		2730
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2731	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2732
1716	The player should be reaosnably safe there for short amounts of time. You	2733	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2734	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2735	though, as the player cannot control the character while it is on the link
		2736	map.
		2737
		2738	Will never block.
1718		2739
1719	=item $player_object->leave_link ($map, $x, $y)	2740	=item $player_object->leave_link ($map, $x, $y)
1720		2741
1721	Moves the player out of the specila link map onto the given map. If the	2742	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2743	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2744	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2745	fails, to the emergency map position.
1725		2746
1726	Might block.	2747	Might block.
1727		2748
1728	=cut	2749	=cut
		2750
		2751	sub link_map {
		2752	unless ($LINK_MAP) {
		2753	$LINK_MAP = cf::map::find "{link}"
		2754	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2755	$LINK_MAP->load;
		2756	}
		2757
		2758	$LINK_MAP
		2759	}
1729		2760
1730	sub cf::object::player::enter_link {	2761	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2762	my ($self) = @_;
1732		2763
1733	$self->deactivate_recursive;	2764	$self->deactivate_recursive;
1734		2765
1735	return if $self->map == $LINK_MAP;	2766	++$self->{_link_recursion};
		2767
		2768	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2769
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2771	if $self->map && $self->map->{path} ne "{link}";
1739		2772
1740	$self->enter_map ($LINK_MAP, 20, 20);	2773	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1741	}	2774	}
1742		2775
1743	sub cf::object::player::leave_link {	2776	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2777	my ($self, $map, $x, $y) = @_;
		2778
		2779	return unless $self->contr->active;
1745		2780
1746	my $link_pos = delete $self->{_link_pos};	2781	my $link_pos = delete $self->{_link_pos};
1747		2782
1748	unless ($map) {	2783	unless ($map) {
1749	# restore original map position	2784	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2795	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2796	unless (defined $x) && (defined $y);
1762		2797
1763	# use -1 or undef as default coordinates, not 0, 0	2798	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2799	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2800	if $x <= 0 && $y <= 0;
1766		2801
1767	$map->load;	2802	$map->load;
1768	$map->load_diag;
1769		2803
1770	return unless $self->contr->active;	2804	return unless $self->contr->active;
		2805
		2806	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2807	if ($self->enter_map ($map, $x, $y)) {
		2808	# entering was successful
		2809	delete $self->{_link_recursion};
		2810	# only activate afterwards, to support waiting in hooks
1771	$self->activate_recursive;	2811	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}
1774
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},	2812	}
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2813
1789	# try to abort aborted map switching on player login :)	2814	}
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2815
1807	=item $player_object->goto ($path, $x, $y)	2816	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1808		2817
		2818	Moves the player to the given map-path and coordinates by first freezing
		2819	her, loading and preparing them map, calling the provided $check callback
		2820	that has to return the map if sucecssful, and then unfreezes the player on
		2821	the new (success) or old (failed) map position. In either case, $done will
		2822	be called at the end of this process.
		2823
		2824	Note that $check will be called with a potentially non-loaded map, so if
		2825	it needs a loaded map it has to call C<< ->load >>.
		2826
1809	=cut	2827	=cut
		2828
		2829	our $GOTOGEN;
1810		2830
1811	sub cf::object::player::goto {	2831	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2832	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2833
1814	$path = new cf::path $path;	2834	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2835	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2836	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2837	($path, $x, $y) = @$EMERGENCY_POSITION;
		2838	}
		2839
		2840	# do generation counting so two concurrent goto's will be executed in-order
		2841	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2842
1816	$self->enter_link;	2843	$self->enter_link;
1817		2844
1818	(async {	2845	(async {
1819	my $map = cf::map::find $path->as_string;	2846	$Coro::current->{desc} = "player::goto $path $x $y";
		2847
		2848	# *tag paths override both path and x|y
		2849	if ($path =~ /^\*(.*)$/) {
		2850	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2851	my $ob = $obs[rand @obs];
		2852
		2853	# see if we actually can go there
		2854	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2855	$ob = $obs[rand @obs];
		2856	} else {
		2857	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2858	}
		2859	# else put us there anyways for now #d#
		2860
		2861	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2862	} else {
		2863	($path, $x, $y) = (undef, undef, undef);
		2864	}
		2865	}
		2866
		2867	my $map = eval {
		2868	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2869
		2870	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2871	$map = $map->customise_for ($self);
1821		2872	$map = $check->($map, $x, $y, $self) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2873	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2874	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2875	}
1826		2876
		2877	$map
		2878	};
		2879
		2880	if ($@) {
		2881	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2882	LOG llevError | logBacktrace, Carp::longmess $@;
		2883	}
		2884
		2885	if ($gen == $self->{_goto_generation}) {
		2886	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2887	$self->leave_link ($map, $x, $y);
		2888	}
		2889
		2890	$done->($self) if $done;
1828	})->prio (1);	2891	})->prio (1);
1829	}	2892	}
1830		2893
1831	=item $player_object->enter_exit ($exit_object)	2894	=item $player_object->enter_exit ($exit_object)
1832		2895
…		…
1834		2897
1835	sub parse_random_map_params {	2898	sub parse_random_map_params {
1836	my ($spec) = @_;	2899	my ($spec) = @_;
1837		2900
1838	my $rmp = { # defaults	2901	my $rmp = { # defaults
1839	xsize => 10,	2902	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2903	ysize => (cf::rndm 15, 40),
		2904	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2905	#layout => string,
1841	};	2906	};
1842		2907
1843	for (split /\n/, $spec) {	2908	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2909	my ($k, $v) = split /\s+/, $_, 2;
1845		2910
…		…
1857	# that depends on the exit object	2922	# that depends on the exit object
1858		2923
1859	my $rmp = parse_random_map_params $exit->msg;	2924	my $rmp = parse_random_map_params $exit->msg;
1860		2925
1861	if ($exit->map) {	2926	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2927	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2928	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2929	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2930	$rmp->{origin_y} = $exit->y;
		2931
		2932	$exit->map->touch;
1866	}	2933	}
1867		2934
1868	$rmp->{random_seed} ||= $exit->random_seed;	2935	$rmp->{random_seed} ||= $exit->random_seed;
1869		2936
1870	my $data = cf::to_json $rmp;	2937	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1871	my $md5 = Digest::MD5::md5_hex $data;	2938	my $md5 = Digest::MD5::md5_hex $data;
		2939	my $meta = "$RANDOMDIR/$md5.meta";
1872		2940
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2942	aio_write $fh, 0, (length $data), $data, 0;
		2943	undef $fh;
		2944	aio_rename "$meta~", $meta;
1875		2945
		2946	my $slaying = "?random/$md5";
		2947
		2948	if ($exit->valid) {
1876	$exit->slaying ("?random/$md5");	2949	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2950	$exit->msg (undef);
		2951	}
1878	}	2952	}
1879	}	2953	}
1880		2954
1881	sub cf::object::player::enter_exit {	2955	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2956	my ($self, $exit) = @_;
…		…
1884	return unless $self->type == cf::PLAYER;	2958	return unless $self->type == cf::PLAYER;
1885		2959
1886	$self->enter_link;	2960	$self->enter_link;
1887		2961
1888	(async {	2962	(async {
1889	$self->deactivate_recursive; # just to be sure	2963	$Coro::current->{desc} = "enter_exit";
		2964
1890	unless (eval {	2965	unless (eval {
		2966	$self->deactivate_recursive; # just to be sure
		2967
		2968	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2969	my $x = $exit->stats->hp;
		2970	my $y = $exit->stats->sp;
		2971
		2972	# special map handling
		2973	my $slaying = $exit->slaying;
		2974
		2975	# special map handling
		2976	if ($slaying eq "/!") {
		2977	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2978
1891	prepare_random_map $exit	2979	prepare_random_map $exit
		2980	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2981
1892	if $exit->slaying eq "/!";	2982	$map = $exit->slaying;
1893		2983
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2984	} elsif ($slaying eq '!up') {
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2985	$map = $exit->map->tile_path (cf::TILE_UP);
		2986	$x = $exit->x;
		2987	$y = $exit->y;
1896		2988
		2989	} elsif ($slaying eq '!down') {
		2990	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2991	$x = $exit->x;
		2992	$y = $exit->y;
		2993	}
		2994
		2995	$self->goto ($map, $x, $y);
		2996
		2997	# if exit is damned, update players death & WoR home-position
		2998	$self->contr->savebed ($map, $x, $y)
		2999	if $exit->flag (cf::FLAG_DAMNED);
		3000
1897	1;	3001	1
1898	}) {	3002	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	3003	$self->message ("Something went wrong deep within the deliantra server. "
1900	. "I'll try to bring you back to the map you were before. "	3004	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	3005	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	3006	cf::NDI_UNIQUE | cf::NDI_RED);
1903		3007
1904	warn "ERROR in enter_exit: $@";	3008	error "ERROR in enter_exit: $@";
1905	$self->leave_link;	3009	$self->leave_link;
1906	}	3010	}
1907	})->prio (1);	3011	})->prio (1);
1908	}	3012	}
1909		3013
…		…
1920		3024
1921	sub cf::client::send_drawinfo {	3025	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	3026	my ($self, $text, $flags) = @_;
1923		3027
1924	utf8::encode $text;	3028	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3029	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	3030	}
1927		3031
		3032	=item $client->send_big_packet ($pkt)
		3033
		3034	Like C<send_packet>, but tries to compress large packets, and fragments
		3035	them as required.
		3036
		3037	=cut
		3038
		3039	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3040
		3041	sub cf::client::send_big_packet {
		3042	my ($self, $pkt) = @_;
		3043
		3044	# try lzf for large packets
		3045	$pkt = "lzf " . Compress::LZF::compress $pkt
		3046	if 1024 <= length $pkt and $self->{can_lzf};
		3047
		3048	# split very large packets
		3049	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3050	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3051	$pkt = "frag";
		3052	}
		3053
		3054	$self->send_packet ($pkt);
		3055	}
		3056
		3057	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3058
		3059	Send a drawinfo or msg packet to the client, formatting the msg for the
		3060	client if neccessary. C<$type> should be a string identifying the type of
		3061	the message, with C<log> being the default. If C<$color> is negative, suppress
		3062	the message unless the client supports the msg packet.
		3063
		3064	=cut
		3065
		3066	# non-persistent channels (usually the info channel)
		3067	our %CHANNEL = (
		3068	"c/motd" => {
		3069	id => "infobox",
		3070	title => "MOTD",
		3071	reply => undef,
		3072	tooltip => "The message of the day",
		3073	},
		3074	"c/identify" => {
		3075	id => "infobox",
		3076	title => "Identify",
		3077	reply => undef,
		3078	tooltip => "Items recently identified",
		3079	},
		3080	"c/examine" => {
		3081	id => "infobox",
		3082	title => "Examine",
		3083	reply => undef,
		3084	tooltip => "Signs and other items you examined",
		3085	},
		3086	"c/shopinfo" => {
		3087	id => "infobox",
		3088	title => "Shop Info",
		3089	reply => undef,
		3090	tooltip => "What your bargaining skill tells you about the shop",
		3091	},
		3092	"c/book" => {
		3093	id => "infobox",
		3094	title => "Book",
		3095	reply => undef,
		3096	tooltip => "The contents of a note or book",
		3097	},
		3098	"c/lookat" => {
		3099	id => "infobox",
		3100	title => "Look",
		3101	reply => undef,
		3102	tooltip => "What you saw there",
		3103	},
		3104	"c/who" => {
		3105	id => "infobox",
		3106	title => "Players",
		3107	reply => undef,
		3108	tooltip => "Shows players who are currently online",
		3109	},
		3110	"c/body" => {
		3111	id => "infobox",
		3112	title => "Body Parts",
		3113	reply => undef,
		3114	tooltip => "Shows which body parts you posess and are available",
		3115	},
		3116	"c/statistics" => {
		3117	id => "infobox",
		3118	title => "Statistics",
		3119	reply => undef,
		3120	tooltip => "Shows your primary statistics",
		3121	},
		3122	"c/skills" => {
		3123	id => "infobox",
		3124	title => "Skills",
		3125	reply => undef,
		3126	tooltip => "Shows your experience per skill and item power",
		3127	},
		3128	"c/shopitems" => {
		3129	id => "infobox",
		3130	title => "Shop Items",
		3131	reply => undef,
		3132	tooltip => "Shows the items currently for sale in this shop",
		3133	},
		3134	"c/resistances" => {
		3135	id => "infobox",
		3136	title => "Resistances",
		3137	reply => undef,
		3138	tooltip => "Shows your resistances",
		3139	},
		3140	"c/pets" => {
		3141	id => "infobox",
		3142	title => "Pets",
		3143	reply => undef,
		3144	tooltip => "Shows information abotu your pets/a specific pet",
		3145	},
		3146	"c/perceiveself" => {
		3147	id => "infobox",
		3148	title => "Perceive Self",
		3149	reply => undef,
		3150	tooltip => "You gained detailed knowledge about yourself",
		3151	},
		3152	"c/uptime" => {
		3153	id => "infobox",
		3154	title => "Uptime",
		3155	reply => undef,
		3156	tooltip => "How long the server has been running since last restart",
		3157	},
		3158	"c/mapinfo" => {
		3159	id => "infobox",
		3160	title => "Map Info",
		3161	reply => undef,
		3162	tooltip => "Information related to the maps",
		3163	},
		3164	"c/party" => {
		3165	id => "party",
		3166	title => "Party",
		3167	reply => "gsay ",
		3168	tooltip => "Messages and chat related to your party",
		3169	},
		3170	"c/death" => {
		3171	id => "death",
		3172	title => "Death",
		3173	reply => undef,
		3174	tooltip => "Reason for and more info about your most recent death",
		3175	},
		3176	"c/say" => $SAY_CHANNEL,
		3177	"c/chat" => $CHAT_CHANNEL,
		3178	);
		3179
		3180	sub cf::client::send_msg {
		3181	my ($self, $channel, $msg, $color, @extra) = @_;
		3182
		3183	$msg = $self->pl->expand_cfpod ($msg)
		3184	unless $color & cf::NDI_VERBATIM;
		3185
		3186	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3187
		3188	# check predefined channels, for the benefit of C
		3189	if ($CHANNEL{$channel}) {
		3190	$channel = $CHANNEL{$channel};
		3191
		3192	$self->ext_msg (channel_info => $channel);
		3193	$channel = $channel->{id};
		3194
		3195	} elsif (ref $channel) {
		3196	# send meta info to client, if not yet sent
		3197	unless (exists $self->{channel}{$channel->{id}}) {
		3198	$self->{channel}{$channel->{id}} = $channel;
		3199	$self->ext_msg (channel_info => $channel);
		3200	}
		3201
		3202	$channel = $channel->{id};
		3203	}
		3204
		3205	return unless @extra || length $msg;
		3206
		3207	# default colour, mask it out
		3208	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3209	if $color & cf::NDI_DEF;
		3210
		3211	my $pkt = "msg "
		3212	. $self->{json_coder}->encode (
		3213	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3214	);
		3215
		3216	$self->send_big_packet ($pkt);
		3217	}
		3218
		3219	=item $client->ext_msg ($type, @msg)
		3220
		3221	Sends an ext event to the client.
		3222
		3223	=cut
		3224
		3225	sub cf::client::ext_msg($$@) {
		3226	my ($self, $type, @msg) = @_;
		3227
		3228	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3229	}
1928		3230
1929	=item $success = $client->query ($flags, "text", \&cb)	3231	=item $success = $client->query ($flags, "text", \&cb)
1930		3232
1931	Queues a query to the client, calling the given callback with	3233	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3234	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3235	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		3236
1935	Queries can fail, so check the return code. Or don't, as queries will become	3237	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	3238	become reliable at some point in the future.
1937		3239
1938	=cut	3240	=cut
1939		3241
1940	sub cf::client::query {	3242	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	3243	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	3251	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3252	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		3253
1952	$self->send_packet ($self->{query_queue}[0][0])	3254	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	3255	if @{ $self->{query_queue} } == 1;
		3256
		3257	1
1954	}	3258	}
1955		3259
1956	cf::client->attach (	3260	cf::client->attach (
		3261	on_connect => sub {
		3262	my ($ns) = @_;
		3263
		3264	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3265	},
1957	on_reply => sub {	3266	on_reply => sub {
1958	my ($ns, $msg) = @_;	3267	my ($ns, $msg) = @_;
1959		3268
1960	# this weird shuffling is so that direct followup queries	3269	# this weird shuffling is so that direct followup queries
1961	# get handled first	3270	# get handled first
1962	my $queue = delete $ns->{query_queue}	3271	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	3272	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		3273
1965	(shift @$queue)->[1]->($msg);	3274	(shift @$queue)->[1]->($msg);
		3275	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		3276
1967	push @{ $ns->{query_queue} }, @$queue;	3277	push @{ $ns->{query_queue} }, @$queue;
1968		3278
1969	if (@{ $ns->{query_queue} } == @$queue) {	3279	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	3280	if (@$queue) {
…		…
1972	} else {	3282	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3283	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	3284	}
1975	}	3285	}
1976	},	3286	},
		3287	on_exticmd => sub {
		3288	my ($ns, $buf) = @_;
		3289
		3290	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3291
		3292	if (ref $msg) {
		3293	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3294
		3295	my @reply;
		3296
		3297	if (my $cb = $EXTICMD{$type}) {
		3298	@reply = $cb->($ns, @payload);
		3299	}
		3300
		3301	$ns->ext_msg ("reply-$reply", @reply)
		3302	if $reply;
		3303
		3304	} else {
		3305	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3306	}
		3307
		3308	cf::override;
		3309	},
1977	);	3310	);
1978		3311
1979	=item $client->async (\&cb)	3312	=item $client->async (\&cb)
1980		3313
1981	Create a new coroutine, running the specified callback. The coroutine will	3314	Create a new coroutine, running the specified callback. The coroutine will
…		…
1997		3330
1998	$coro	3331	$coro
1999	}	3332	}
2000		3333
2001	cf::client->attach (	3334	cf::client->attach (
2002	on_destroy => sub {	3335	on_client_destroy => sub {
2003	my ($ns) = @_;	3336	my ($ns) = @_;
2004		3337
2005	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3338	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2006	},	3339	},
2007	);	3340	);
…		…
2022	our $safe = new Safe "safe";	3355	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3356	our $safe_hole = new Safe::Hole;
2024		3357
2025	$SIG{FPE} = 'IGNORE';	3358	$SIG{FPE} = 'IGNORE';
2026		3359
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3360	$safe->permit_only (Opcode::opset qw(
		3361	:base_core :base_mem :base_orig :base_math :base_loop
		3362	grepstart grepwhile mapstart mapwhile
		3363	sort time
		3364	));
2028		3365
2029	# here we export the classes and methods available to script code	3366	# here we export the classes and methods available to script code
2030		3367
2031	=pod	3368	=pod
2032		3369
2033	The following fucntions and emthods are available within a safe environment:	3370	The following functions and methods are available within a safe environment:
2034		3371
2035	cf::object contr pay_amount pay_player map	3372	cf::object
		3373	contr pay_amount pay_player map x y force_find force_add destroy
		3374	insert remove name archname title slaying race decrease split
		3375	value
		3376
2036	cf::object::player player	3377	cf::object::player
2037	cf::player peaceful	3378	player
2038	cf::map trigger	3379
		3380	cf::player
		3381	peaceful
		3382
		3383	cf::map
		3384	trigger
2039		3385
2040	=cut	3386	=cut
2041		3387
2042	for (	3388	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3389	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3390	insert remove inv nrof name archname title slaying race
		3391	decrease split destroy change_exp value msg lore send_msg)],
2044	["cf::object::player" => qw(player)],	3392	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3393	["cf::player" => qw(peaceful send_msg)],
2046	["cf::map" => qw(trigger)],	3394	["cf::map" => qw(trigger)],
2047	) {	3395	) {
2048	no strict 'refs';
2049	my ($pkg, @funs) = @$_;	3396	my ($pkg, @funs) = @$_;
2050	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3397	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2051	for @funs;	3398	for @funs;
2052	}	3399	}
2053		3400
…		…
2068		3415
2069	my $qcode = $code;	3416	my $qcode = $code;
2070	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3417	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2071	$qcode =~ s/\n/\\n/g;	3418	$qcode =~ s/\n/\\n/g;
2072		3419
		3420	%vars = (_dummy => 0) unless %vars;
		3421
		3422	my @res;
2073	local $_;	3423	local $_;
2074	local @safe::cf::_safe_eval_args = values %vars;
2075		3424
2076	my $eval =	3425	my $eval =
2077	"do {\n"	3426	"do {\n"
2078	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3427	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2079	. "#line 0 \"{$qcode}\"\n"	3428	. "#line 0 \"{$qcode}\"\n"
2080	. $code	3429	. $code
2081	. "\n}"	3430	. "\n}"
2082	;	3431	;
2083		3432
		3433	if ($CFG{safe_eval}) {
2084	sub_generation_inc;	3434	sub_generation_inc;
		3435	local @safe::cf::_safe_eval_args = values %vars;
2085	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3436	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2086	sub_generation_inc;	3437	sub_generation_inc;
		3438	} else {
		3439	local @cf::_safe_eval_args = values %vars;
		3440	@res = wantarray ? eval eval : scalar eval $eval;
		3441	}
2087		3442
2088	if ($@) {	3443	if ($@) {
2089	warn "$@";	3444	warn "$@",
2090	warn "while executing safe code '$code'\n";	3445	"while executing safe code '$code'\n",
2091	warn "with arguments " . (join " ", %vars) . "\n";	3446	"with arguments " . (join " ", %vars) . "\n";
2092	}	3447	}
2093		3448
2094	wantarray ? @res : $res[0]	3449	wantarray ? @res : $res[0]
2095	}	3450	}
2096		3451
…		…
2110	=cut	3465	=cut
2111		3466
2112	sub register_script_function {	3467	sub register_script_function {
2113	my ($fun, $cb) = @_;	3468	my ($fun, $cb) = @_;
2114		3469
2115	no strict 'refs';	3470	$fun = "safe::$fun" if $CFG{safe_eval};
2116	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3471	*$fun = $safe_hole->wrap ($cb);
2117	}	3472	}
2118		3473
2119	=back	3474	=back
2120		3475
2121	=cut	3476	=cut
2122		3477
2123	#############################################################################	3478	#############################################################################
		3479	# the server's init and main functions
2124		3480
2125	=head2 EXTENSION DATABASE SUPPORT	3481	our %FACEHASH; # hash => idx, #d# HACK for http server
2126		3482
2127	Crossfire maintains a very simple database for extension use. It can	3483	# internal api, not fianlised
2128	currently store anything that can be serialised using Storable, which	3484	sub add_face {
2129	excludes objects.	3485	my ($name, $type, $data) = @_;
2130		3486
2131	The parameter C<$family> should best start with the name of the extension	3487	my $idx = cf::face::find $name;
2132	using it, it should be unique.
2133		3488
2134	=over 4	3489	if ($idx) {
2135		3490	delete $FACEHASH{cf::face::get_chksum $idx};
2136	=item $hashref = cf::db_get $family
2137
2138	Return a hashref for use by the extension C<$family>, which can be
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141
2142	=item $value = cf::db_get $family => $key
2143
2144	Returns a single value from the database
2145
2146	=item cf::db_put $family => $hashref
2147
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});
2197
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}
2202
2203	sub db_get($;$) {
2204	@_ >= 2
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208
2209	sub db_put($$;$) {
2210	if (@_ >= 3) {
2211	$DB->{$_[0]}{$_[1]} = $_[2];
2212	} else {	3491	} else {
2213	$DB->{$_[0]} = $_[1];	3492	$idx = cf::face::alloc $name;
2214	}	3493	}
2215	db_dirty;	3494
		3495	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3496
		3497	cf::face::set_type $idx, $type;
		3498	cf::face::set_data $idx, 0, $data, $hash;
		3499	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3500	$FACEHASH{$hash} = $idx;#d#
		3501
		3502	$idx
		3503	}
		3504
		3505	sub load_facedata($) {
		3506	my ($path) = @_;
		3507
		3508	# HACK to clear player env face cache, we need some signal framework
		3509	# for this (global event?)
		3510	%ext::player_env::MUSIC_FACE_CACHE = ();
		3511
		3512	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3513
		3514	trace "loading facedata from $path\n";
		3515
		3516	my $facedata = decode_storable load_file $path;
		3517
		3518	$facedata->{version} == 2
		3519	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3520
		3521	cf::cede_to_tick;
		3522
2216	}	3523	{
		3524	my $faces = $facedata->{faceinfo};
2217		3525
2218	cf::global->attach (	3526	for my $face (sort keys %$faces) {
2219	prio => 10000,	3527	my $info = $faces->{$face};
2220	on_cleanup => sub {	3528	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2221	db_sync;	3529
		3530	cf::face::set_visibility $idx, $info->{visibility};
		3531	cf::face::set_magicmap $idx, $info->{magicmap};
		3532	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3533	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3534	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3535	$FACEHASH{$info->{hash64}} = $idx;#d#
		3536
		3537	cf::cede_to_tick;
2222	},	3538	}
2223	);
2224	}
2225		3539
2226	#############################################################################	3540	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3541	next unless $info->{smooth};
2228		3542
2229	sub cfg_load {	3543	my $idx = cf::face::find $face
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3544	or next;
2231	or return;
2232		3545
2233	local $/;	3546	if (my $smooth = cf::face::find $info->{smooth}) {
2234	*CFG = YAML::Syck::Load <$fh>;	3547	cf::face::set_smooth $idx, $smooth;
		3548	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3549	} else {
		3550	error "smooth face '$info->{smooth}' not found for face '$face'";
		3551	}
2235		3552
		3553	cf::cede_to_tick;
		3554	}
		3555	}
		3556
		3557	{
		3558	my $anims = $facedata->{animinfo};
		3559
		3560	while (my ($anim, $info) = each %$anims) {
		3561	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3562	cf::cede_to_tick;
		3563	}
		3564
		3565	cf::anim::invalidate_all; # d'oh
		3566	}
		3567
		3568	{
		3569	my $res = $facedata->{resource};
		3570
		3571	while (my ($name, $info) = each %$res) {
		3572	if (defined (my $type = $info->{type})) {
		3573	# TODO: different hash - must free and use new index, or cache ixface data queue
		3574	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3575
		3576	cf::face::set_type $idx, $type;
		3577	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3578	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3579	$FACEHASH{$info->{hash}} = $idx;#d#
		3580	} else {
		3581	# $RESOURCE{$name} = $info; # unused
		3582	}
		3583
		3584	cf::cede_to_tick;
		3585	}
		3586	}
		3587
		3588	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3589
		3590	1
		3591	}
		3592
		3593	register_exticmd fx_want => sub {
		3594	my ($ns, $want) = @_;
		3595
		3596	while (my ($k, $v) = each %$want) {
		3597	$ns->fx_want ($k, $v);
		3598	}
		3599	};
		3600
		3601	sub load_resource_file($) {
		3602	my $guard = lock_acquire "load_resource_file";
		3603
		3604	my $status = load_resource_file_ $_[0];
		3605	get_slot 0.1, 100;
		3606	cf::arch::commit_load;
		3607
		3608	$status
		3609	}
		3610
		3611	sub reload_exp_table {
		3612	_reload_exp_table;
		3613
		3614	add_face "res/exp_table" => FT_RSRC,
		3615	JSON::XS->new->utf8->canonical->encode (
		3616	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3617	);
		3618	}
		3619
		3620	sub reload_materials {
		3621	_reload_materials;
		3622	}
		3623
		3624	sub reload_regions {
		3625	# HACK to clear player env face cache, we need some signal framework
		3626	# for this (global event?)
		3627	%ext::player_env::MUSIC_FACE_CACHE = ();
		3628
		3629	load_resource_file "$MAPDIR/regions"
		3630	or die "unable to load regions file\n";
		3631
		3632	for (cf::region::list) {
		3633	$_->{match} = qr/$_->{match}/
		3634	if exists $_->{match};
		3635	}
		3636	}
		3637
		3638	sub reload_facedata {
		3639	load_facedata "$DATADIR/facedata"
		3640	or die "unable to load facedata\n";
		3641	}
		3642
		3643	sub reload_archetypes {
		3644	load_resource_file "$DATADIR/archetypes"
		3645	or die "unable to load archetypes\n";
		3646
		3647	add_face "res/skill_info" => FT_RSRC,
		3648	JSON::XS->new->utf8->canonical->encode (
		3649	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3650	);
		3651	add_face "res/spell_paths" => FT_RSRC,
		3652	JSON::XS->new->utf8->canonical->encode (
		3653	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3654	);
		3655	}
		3656
		3657	sub reload_treasures {
		3658	load_resource_file "$DATADIR/treasures"
		3659	or die "unable to load treasurelists\n";
		3660	}
		3661
		3662	sub reload_sound {
		3663	trace "loading sound config from $DATADIR/sound\n";
		3664
		3665	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3666
		3667	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3668	my $sound = $soundconf->{compat}[$_]
		3669	or next;
		3670
		3671	my $face = cf::face::find "sound/$sound->[1]";
		3672	cf::sound::set $sound->[0] => $face;
		3673	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3674	}
		3675
		3676	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3677	my $face = cf::face::find "sound/$v";
		3678	cf::sound::set $k => $face;
		3679	}
		3680	}
		3681
		3682	#d# move docstuff to help or so
		3683	our %DOCSTRING;
		3684
		3685	sub reload_pod {
		3686	trace "loading pods $PODDIR\n";
		3687
		3688	%DOCSTRING = ();
		3689	my @command_list;
		3690
		3691	for (
		3692	[0, "command_help"],
		3693	[1, "emote_help"],
		3694	[2, "dmcommand_help"],
		3695	) {
		3696	my ($type, $path) = @$_;
		3697
		3698	my $paragraphs = &cf::pod::load_pod ("$PODDIR/$path.pod")
		3699	or die "unable to load $path";
		3700
		3701	my $level = 1e9;
		3702	my $rpar;
		3703
		3704	for my $par (@$paragraphs) {
		3705	if ($par->{type} eq "head2") {
		3706	# this code taken almost verbatim from DC/Protocol.pm
		3707
		3708	if ($par->{markup} =~ /^(\S+) (?:\s+ \( ([^\)]*) \) )?/x) {
		3709	my $cmd = $1;
		3710	my @args = split /\|/, $2;
		3711	@args = (".*") unless @args;
		3712
		3713	$_ = $_ eq ".*" ? "" : " $_"
		3714	for @args;
		3715
		3716	my @variants = map "$cmd$_", sort { (length $a) <=> (length $b) } @args;
		3717
		3718	$rpar = \($DOCSTRING{"command/$cmd"} = &cf::pod::as_cfpod ([$par]));
		3719
		3720	push @command_list, [$type, \@variants];
		3721	$level = $par->{level};
		3722	} else {
		3723	error "$par->{markup}: unparsable command heading";
		3724	}
		3725	} elsif ($par->{level} > $level) {
		3726	$$rpar .= &cf::pod::as_cfpod ([$par]);
		3727	}
		3728
		3729	cf::cede_to_tick;
		3730	}
		3731	}
		3732
		3733	@command_list = sort {
		3734	$a->[0] <=> $b->[0]
		3735	or $a->[1] cmp $b->[1]
		3736	} @command_list;
		3737
		3738	cf::cede_to_tick;
		3739
		3740	add_face "res/command_list" => FT_RSRC,
		3741	JSON::XS->new->utf8->encode (\@command_list);
		3742	}
		3743
		3744	sub reload_resources {
		3745	trace "reloading resource files...\n";
		3746
		3747	reload_materials;
		3748	reload_facedata;
		3749	reload_exp_table;
		3750	reload_sound;
		3751	reload_archetypes;
		3752	reload_regions;
		3753	reload_treasures;
		3754	reload_pod;
		3755
		3756	trace "finished reloading resource files\n";
		3757	}
		3758
		3759	sub reload_config {
		3760	trace "reloading config file...\n";
		3761
		3762	my $config = load_file "$CONFDIR/config";
		3763	utf8::decode $config;
		3764	*CFG = decode_yaml $config;
		3765
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3766	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2237		3767
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3768	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3769	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2240		3770
2241	if (exists $CFG{mlockall}) {	3771	if (exists $CFG{mlockall}) {
…		…
2245	};	3775	};
2246	warn $@ if $@;	3776	warn $@ if $@;
2247	}	3777	}
2248	}	3778	}
2249		3779
		3780	sub pidfile() {
		3781	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3782	or die "$PIDFILE: $!";
		3783	flock $fh, &Fcntl::LOCK_EX
		3784	or die "$PIDFILE: flock: $!";
		3785	$fh
		3786	}
		3787
		3788	# make sure only one server instance is running at any one time
		3789	sub atomic {
		3790	my $fh = pidfile;
		3791
		3792	my $pid = <$fh>;
		3793	kill 9, $pid if $pid > 0;
		3794
		3795	seek $fh, 0, 0;
		3796	print $fh $$;
		3797	}
		3798
		3799	sub main_loop {
		3800	trace "EV::loop starting\n";
		3801	if (1) {
		3802	EV::loop;
		3803	}
		3804	trace "EV::loop returned\n";
		3805	goto &main_loop unless $REALLY_UNLOOP;
		3806	}
		3807
2250	sub main {	3808	sub main {
		3809	cf::init_globals; # initialise logging
		3810
		3811	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3812	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3813	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3814	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3815
		3816	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3817
2251	# we must not ever block the main coroutine	3818	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3819	$Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3820	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3821	(async {
		3822	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3823	EV::loop EV::LOOP_ONESHOT;
		3824	})->prio (Coro::PRIO_MAX);
2255	};	3825	};
2256		3826
2257	cfg_load;	3827	evthread_start IO::AIO::poll_fileno;
2258	db_load;	3828
		3829	cf::sync_job {
		3830	cf::incloader::init ();
		3831
		3832	db_init;
		3833
		3834	cf::init_anim;
		3835	cf::init_attackmess;
		3836	cf::init_dynamic;
		3837
		3838	cf::load_settings;
		3839
		3840	reload_resources;
		3841	reload_config;
		3842
		3843	cf::init_uuid;
		3844	cf::init_signals;
		3845	cf::init_skills;
		3846
		3847	cf::init_beforeplay;
		3848
		3849	atomic;
		3850
2259	load_extensions;	3851	load_extensions;
2260	Event::loop;	3852
		3853	utime time, time, $RUNTIMEFILE;
		3854
		3855	# no (long-running) fork's whatsoever before this point(!)
		3856	use POSIX ();
		3857	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3858
		3859	cf::_post_init 0;
		3860	};
		3861
		3862	cf::object::thawer::errors_are_fatal 0;
		3863	info "parse errors in files are no longer fatal from this point on.\n";
		3864
		3865	AE::postpone {
		3866	undef &main; # free gobs of memory :)
		3867	};
		3868
		3869	goto &main_loop;
2261	}	3870	}
2262		3871
2263	#############################################################################	3872	#############################################################################
2264	# initialisation and cleanup	3873	# initialisation and cleanup
2265		3874
2266	# install some emergency cleanup handlers	3875	# install some emergency cleanup handlers
2267	BEGIN {	3876	BEGIN {
		3877	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3878	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3879	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3880	cf::cleanup "SIG$signal";
2274	},
2275	);	3881	};
		3882	}
		3883	}
		3884
		3885	sub write_runtime_sync {
		3886	my $t0 = AE::time;
		3887
		3888	# first touch the runtime file to show we are still running:
		3889	# the fsync below can take a very very long time.
		3890
		3891	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3892
		3893	my $guard = cf::lock_acquire "write_runtime";
		3894
		3895	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3896	or return;
		3897
		3898	my $value = $cf::RUNTIME + 90 + 10;
		3899	# 10 is the runtime save interval, for a monotonic clock
		3900	# 60 allows for the watchdog to kill the server.
		3901
		3902	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3903	and return;
		3904
		3905	# always fsync - this file is important
		3906	aio_fsync $fh
		3907	and return;
		3908
		3909	# touch it again to show we are up-to-date
		3910	aio_utime $fh, undef, undef;
		3911
		3912	close $fh
		3913	or return;
		3914
		3915	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3916	and return;
		3917
		3918	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3919
2276	}	3920	1
		3921	}
		3922
		3923	our $uuid_lock;
		3924	our $uuid_skip;
		3925
		3926	sub write_uuid_sync($) {
		3927	$uuid_skip ||= $_[0];
		3928
		3929	return if $uuid_lock;
		3930	local $uuid_lock = 1;
		3931
		3932	my $uuid = "$LOCALDIR/uuid";
		3933
		3934	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3935	or return;
		3936
		3937	my $value = uuid_seq uuid_cur;
		3938
		3939	unless ($value) {
		3940	info "cowardly refusing to write zero uuid value!\n";
		3941	return;
		3942	}
		3943
		3944	my $value = uuid_str $value + $uuid_skip;
		3945	$uuid_skip = 0;
		3946
		3947	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3948	and return;
		3949
		3950	# always fsync - this file is important
		3951	aio_fsync $fh
		3952	and return;
		3953
		3954	close $fh
		3955	or return;
		3956
		3957	aio_rename "$uuid~", $uuid
		3958	and return;
		3959
		3960	trace "uuid file written ($value).\n";
		3961
		3962	1
		3963
		3964	}
		3965
		3966	sub write_uuid($$) {
		3967	my ($skip, $sync) = @_;
		3968
		3969	$sync ? write_uuid_sync $skip
		3970	: async { write_uuid_sync $skip };
2277	}	3971	}
2278		3972
2279	sub emergency_save() {	3973	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3974	my $freeze_guard = cf::freeze_mainloop;
2281		3975
2282	warn "enter emergency perl save\n";	3976	info "emergency_perl_save: enter\n";
		3977
		3978	# this is a trade-off: we want to be very quick here, so
		3979	# save all maps without fsync, and later call a global sync
		3980	# (which in turn might be very very slow)
		3981	local $USE_FSYNC = 0;
2283		3982
2284	cf::sync_job {	3983	cf::sync_job {
		3984	cf::write_runtime_sync; # external watchdog should not bark
		3985
2285	# use a peculiar iteration method to avoid tripping on perl	3986	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3987	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3988	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3989	info "emergency_perl_save: begin player save\n";
2289	for my $login (keys %cf::PLAYER) {	3990	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3991	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3992	$pl->valid or next;
		3993	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3994	$pl->save;
2293	}	3995	}
2294	warn "end emergency player save\n";	3996	info "emergency_perl_save: end player save\n";
2295		3997
2296	warn "begin emergency map save\n";	3998	cf::write_runtime_sync; # external watchdog should not bark
		3999
		4000	info "emergency_perl_save: begin map save\n";
2297	for my $path (keys %cf::MAP) {	4001	for my $path (keys %cf::MAP) {
2298	my $map = $cf::MAP{$path} or next;	4002	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	4003	$map->valid or next;
2300	$map->save;	4004	$map->save;
2301	}	4005	}
2302	warn "end emergency map save\n";	4006	info "emergency_perl_save: end map save\n";
		4007
		4008	cf::write_runtime_sync; # external watchdog should not bark
		4009
		4010	info "emergency_perl_save: begin database checkpoint\n";
		4011	BDB::db_env_txn_checkpoint $DB_ENV;
		4012	info "emergency_perl_save: end database checkpoint\n";
		4013
		4014	info "emergency_perl_save: begin write uuid\n";
		4015	write_uuid_sync 1;
		4016	info "emergency_perl_save: end write uuid\n";
		4017
		4018	cf::write_runtime_sync; # external watchdog should not bark
		4019
		4020	trace "emergency_perl_save: syncing database to disk";
		4021	BDB::db_env_txn_checkpoint $DB_ENV;
		4022
		4023	info "emergency_perl_save: starting sync\n";
		4024	IO::AIO::aio_sync sub {
		4025	info "emergency_perl_save: finished sync\n";
		4026	};
		4027
		4028	cf::write_runtime_sync; # external watchdog should not bark
		4029
		4030	trace "emergency_perl_save: flushing outstanding aio requests";
		4031	while (IO::AIO::nreqs || BDB::nreqs) {
		4032	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4033	}
		4034
		4035	cf::write_runtime_sync; # external watchdog should not bark
2303	};	4036	};
2304		4037
2305	warn "leave emergency perl save\n";	4038	info "emergency_perl_save: leave\n";
2306	}	4039	}
2307		4040
		4041	sub post_cleanup {
		4042	my ($make_core) = @_;
		4043
		4044	IO::AIO::flush;
		4045
		4046	error Carp::longmess "post_cleanup backtrace"
		4047	if $make_core;
		4048
		4049	my $fh = pidfile;
		4050	unlink $PIDFILE if <$fh> == $$;
		4051	}
		4052
		4053	# a safer delete_package, copied from Symbol
		4054	sub clear_package($) {
		4055	my $pkg = shift;
		4056
		4057	# expand to full symbol table name if needed
		4058	unless ($pkg =~ /^main::.*::$/) {
		4059	$pkg = "main$pkg" if $pkg =~ /^::/;
		4060	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4061	$pkg .= '::' unless $pkg =~ /::$/;
		4062	}
		4063
		4064	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4065	my $stem_symtab = *{$stem}{HASH};
		4066
		4067	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4068	or return;
		4069
		4070	# clear all symbols
		4071	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4072	for my $name (keys %$leaf_symtab) {
		4073	_gv_clear *{"$pkg$name"};
		4074	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4075	}
		4076	}
		4077
2308	sub reload() {	4078	sub do_reload_perl() {
2309	# can/must only be called in main	4079	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	4080	unless (in_main) {
2311	warn "can only reload from main coroutine\n";	4081	error "can only reload from main coroutine";
2312	return;	4082	return;
2313	}	4083	}
2314		4084
2315	warn "reloading...";	4085	return if $RELOAD++;
2316		4086
2317	warn "freezing server";	4087	my $t1 = AE::time;
2318	my $guard = freeze_mainloop;	4088
		4089	while ($RELOAD) {
		4090	cf::get_slot 0.1, -1, "reload_perl";
		4091	info "perl_reload: reloading...";
		4092
		4093	trace "perl_reload: entering sync_job";
		4094
		4095	cf::sync_job {
2319	cf::emergency_save;	4096	#cf::emergency_save;
2320		4097
2321	warn "sync database to disk";	4098	trace "perl_reload: cancelling all extension coros";
2322	cf::db_sync;
2323	IO::AIO::flush;
2324
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved
2327
2328	warn "cancel all watchers";
2329	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}
2332
2333	warn "cancel all extension coros";
2334	$_->cancel for values %EXT_CORO;	4099	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	4100	%EXT_CORO = ();
2336		4101
2337	warn "remove commands";	4102	trace "perl_reload: removing commands";
2338	%COMMAND = ();	4103	%COMMAND = ();
2339		4104
2340	warn "remove ext commands";	4105	trace "perl_reload: removing ext/exti commands";
2341	%EXTCMD = ();	4106	%EXTCMD = ();
		4107	%EXTICMD = ();
2342		4108
2343	warn "unload/nuke all extensions";	4109	trace "perl_reload: unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	4110	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	4111	trace "... unloading $pkg";
2346		4112
2347	if (my $cb = $pkg->can ("unload")) {	4113	if (my $cb = $pkg->can ("unload")) {
2348	eval {	4114	eval {
2349	$cb->($pkg);	4115	$cb->($pkg);
2350	1	4116	1
2351	} or warn "$pkg unloaded, but with errors: $@";	4117	} or error "$pkg unloaded, but with errors: $@";
		4118	}
		4119
		4120	trace "... clearing $pkg";
		4121	clear_package $pkg;
2352	}	4122	}
2353		4123
2354	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;
2356	}
2357
2358	warn "unload all perl modules loaded from $LIBDIR";	4124	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	4125	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4126	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		4127
2362	warn "removing <$k>";	4128	trace "... unloading $k";
2363	delete $INC{$k};	4129	delete $INC{$k};
2364		4130
2365	$k =~ s/\.pm$//;	4131	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	4132	$k =~ s/\//::/g;
2367		4133
2368	if (my $cb = $k->can ("unload_module")) {	4134	if (my $cb = $k->can ("unload_module")) {
2369	$cb->();	4135	$cb->();
		4136	}
		4137
		4138	clear_package $k;
2370	}	4139	}
2371		4140
2372	Symbol::delete_package $k;
2373	}
2374
2375	warn "get rid of safe::, as good as possible";	4141	trace "perl_reload: getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	4142	clear_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4143	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		4144
2379	warn "unload cf.pm \"a bit\"";	4145	trace "perl_reload: unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	4146	delete $INC{"cf.pm"};
		4147	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2381		4148
2382	# don't, removes xs symbols, too,	4149	# don't, removes xs symbols, too,
2383	# and global variables created in xs	4150	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	4151	#clear_package __PACKAGE__;
2385		4152
2386	warn "reloading cf.pm";	4153	info "perl_reload: unload completed, starting to reload now";
		4154
		4155	trace "perl_reload: reloading cf.pm";
2387	require cf;	4156	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4157	cf::_connect_to_perl_1;
2389		4158
2390	warn "load config and database again";	4159	trace "perl_reload: loading config and database again";
2391	cf::cfg_load;	4160	cf::reload_config;
2392	cf::db_load;
2393		4161
2394	warn "load extensions";	4162	trace "perl_reload: loading extensions";
2395	cf::load_extensions;	4163	cf::load_extensions;
2396		4164
		4165	if ($REATTACH_ON_RELOAD) {
2397	warn "reattach attachments to objects/players";	4166	trace "perl_reload: reattaching attachments to objects/players";
2398	_global_reattach;	4167	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	4168	trace "perl_reload: reattaching attachments to maps";
2400	reattach $_ for values %MAP;	4169	reattach $_ for values %MAP;
		4170	trace "perl_reload: reattaching attachments to players";
		4171	reattach $_ for values %PLAYER;
		4172	}
		4173
		4174	cf::_post_init 1;
		4175
		4176	trace "perl_reload: leaving sync_job";
		4177
		4178	1
		4179	} or do {
		4180	error $@;
		4181	cf::cleanup "perl_reload: error, exiting.";
		4182	};
		4183
		4184	--$RELOAD;
		4185	}
		4186
		4187	$t1 = AE::time - $t1;
		4188	info "perl_reload: completed in ${t1}s\n";
		4189	};
		4190
		4191	our $RELOAD_WATCHER; # used only during reload
		4192
		4193	sub reload_perl() {
		4194	# doing reload synchronously and two reloads happen back-to-back,
		4195	# coro crashes during coro_state_free->destroy here.
		4196
		4197	$RELOAD_WATCHER ||= cf::async {
		4198	Coro::AIO::aio_wait cache_extensions;
		4199
		4200	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4201	do_reload_perl;
		4202	undef $RELOAD_WATCHER;
		4203	};
2401	};	4204	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408
2409	warn "reloaded";
2410	};
2411
2412	#############################################################################
2413
2414	unless ($LINK_MAP) {
2415	$LINK_MAP = cf::map::new;
2416
2417	$LINK_MAP->width (41);
2418	$LINK_MAP->height (41);
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	4205	}
2454		4206
2455	register_command "reload" => sub {	4207	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	4208	my ($who, $arg) = @_;
2457		4209
2458	if ($who->flag (FLAG_WIZ)) {	4210	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	4211	$who->message ("reloading server.");
		4212	async {
		4213	$Coro::current->{desc} = "perl_reload";
		4214	reload_perl;
		4215	};
2462	}	4216	}
2463	};	4217	};
2464		4218
2465	unshift @INC, $LIBDIR;	4219	#############################################################################
2466		4220
2467	$TICK_WATCHER = Event->timer (	4221	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		4222
2475	cf::server_tick; # one server iteration	4223	sub wait_for_tick() {
2476	$RUNTIME += $TICK;	4224	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2477	$NEXT_TICK += $TICK;
2478		4225
		4226	$WAIT_FOR_TICK->wait;
		4227	}
		4228
		4229	sub wait_for_tick_begin() {
		4230	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4231
		4232	my $signal = new Coro::Signal;
		4233	push @WAIT_FOR_TICK_BEGIN, $signal;
		4234	$signal->wait;
		4235	}
		4236
		4237	sub tick {
		4238	if ($Coro::current != $Coro::main) {
		4239	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4240	unless ++$bug_warning > 10;
		4241	return;
		4242	}
		4243
		4244	cf::one_tick; # one server iteration
		4245
		4246	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4247
		4248	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4249	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4250	Coro::async_pool {
		4251	$Coro::current->{desc} = "runtime saver";
		4252	write_runtime_sync
		4253	or error "ERROR: unable to write runtime file: $!";
		4254	};
		4255	}
		4256
		4257	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4258	$sig->send;
		4259	}
2479	$WAIT_FOR_TICK->broadcast;	4260	$WAIT_FOR_TICK->broadcast;
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2481		4261
2482	# if we are delayed by four ticks or more, skip them all	4262	$LOAD = ($NOW - $TICK_START) / $TICK;
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4263	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2484		4264
2485	$TICK_WATCHER->at ($NEXT_TICK);	4265	if (0) {
2486	$TICK_WATCHER->start;	4266	if ($NEXT_TICK) {
		4267	my $jitter = $TICK_START - $NEXT_TICK;
		4268	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4269	debug "jitter $JITTER\n";#d#
		4270	}
2487	},	4271	}
2488	);	4272	}
2489		4273
		4274	{
		4275	# configure BDB
		4276	info "initialising database";
		4277
		4278	BDB::min_parallel 16;
		4279	BDB::max_poll_reqs $TICK * 0.1;
		4280	#$AnyEvent::BDB::WATCHER->priority (1);
		4281
		4282	unless ($DB_ENV) {
		4283	$DB_ENV = BDB::db_env_create;
		4284	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4285	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4286	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4287	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4288	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4289
		4290	cf::sync_job {
		4291	eval {
		4292	BDB::db_env_open
		4293	$DB_ENV,
		4294	$BDBDIR,
		4295	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4296	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4297	0666;
		4298
		4299	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4300	};
		4301
		4302	cf::cleanup "db_env_open(db): $@" if $@;
		4303	};
		4304	}
		4305
		4306	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4307	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4308	};
		4309	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4310	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4311	};
		4312	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4313	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4314	};
		4315
		4316	info "database initialised";
		4317	}
		4318
		4319	{
		4320	# configure IO::AIO
		4321
		4322	info "initialising aio";
		4323	IO::AIO::min_parallel 8;
2490	IO::AIO::max_poll_time $TICK * 0.2;	4324	IO::AIO::max_poll_time $TICK * 0.1;
		4325	undef $AnyEvent::AIO::WATCHER;
		4326	info "aio initialised";
		4327	}
2491		4328
2492	Event->io (	4329	our $_log_backtrace;
2493	fd => IO::AIO::poll_fileno,	4330	our $_log_backtrace_last;
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499		4331
2500	Event->timer (	4332	sub _log_backtrace {
2501	data => WF_AUTOCANCEL,	4333	my ($msg, @addr) = @_;
2502	after => 0,	4334
2503	interval => 10,	4335	$msg =~ s/\n$//;
2504	cb => sub {	4336
2505	(Coro::unblock_sub {	4337	if ($_log_backtrace_last eq $msg) {
2506	write_runtime	4338	LOG llevInfo, "[ABT] $msg\n";
2507	or warn "ERROR: unable to write runtime file: $!";	4339	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4340	# limit the # of concurrent backtraces
		4341	} elsif ($_log_backtrace < 2) {
		4342	$_log_backtrace_last = $msg;
		4343	++$_log_backtrace;
		4344	my $perl_bt = Carp::longmess $msg;
		4345	async {
		4346	$Coro::current->{desc} = "abt $msg";
		4347
		4348	my @bt = fork_call {
		4349	@addr = map { sprintf "%x", $_ } @addr;
		4350	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4351	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4352	or die "addr2line: $!";
		4353
		4354	my @funcs;
		4355	my @res = <$fh>;
		4356	chomp for @res;
		4357	while (@res) {
		4358	my ($func, $line) = splice @res, 0, 2, ();
		4359	push @funcs, "[$func] $line";
		4360	}
		4361
		4362	@funcs
		4363	};
		4364
		4365	LOG llevInfo, "[ABT] $perl_bt\n";
		4366	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4367	LOG llevInfo, "[ABT] $_\n" for @bt;
		4368	--$_log_backtrace;
2508	})->();	4369	};
		4370	} else {
		4371	LOG llevInfo, "[ABT] $msg\n";
		4372	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2509	},	4373	}
2510	);	4374	}
		4375
		4376	# load additional modules
		4377	require "cf/$_.pm" for @EXTRA_MODULES;
		4378	cf::_connect_to_perl_2;
2511		4379
2512	END { cf::emergency_save }	4380	END { cf::emergency_save }
2513		4381
2514	1	4382	1
2515		4383

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