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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.588 by root, Thu Nov 1 13:02:52 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;
28		68
29	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	69	# configure various modules to our taste
30	$YAML::Syck::ImplicitUnicode = 1;	70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
		72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
31		73
32	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
33		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" };
		82
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		84
		85	our @ORIG_INC;
35		86
36	our %COMMAND = ();	87	our %COMMAND = ();
37	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
		89
		90	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
		93	our %EXT_CORO = (); # coroutines bound to extensions
		94	our %EXT_MAP = (); # pluggable maps
39		95
		96	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	97	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
42		100
43	our $TICK = MAX_TIME * 1e-6;	101	our $CONFDIR = confdir;
44	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
45	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;
46	our $NOW;	143	our $NOW;
47		144
48	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
49		148
50	our $UPTIME; $UPTIME ||= time;	149	# used to convert map paths into valid unix filenames by replacing / by ∕
51	our $RUNTIME;	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
52		151
53	our %PLAYER; # all users	152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
54	our %MAP; # all maps	153	our $LOADAVG; # same thing, but with alpha-smoothing
55	our $LINK_MAP; # the special {link} map	154	our $JITTER; # average jitter
56	our $RANDOM_MAPS = cf::localdir . "/random";	155	our $TICK_START; # for load detecting purposes
57	our %EXT_CORO; # coroutines bound to extensions	156
		157	our @POST_INIT;
		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 $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
58		164
59	binmode STDOUT;	165	binmode STDOUT;
60	binmode STDERR;	166	binmode STDERR;
61		167
62	# read virtual server time, if available	168	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
64	open my $fh, "<", cf::localdir . "/runtime"	170	open my $fh, "<", $RUNTIMEFILE
65	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
66	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
67	}	173	}
68		174
69	mkdir cf::localdir;	175	eval "sub TICK() { $TICK } 1" or die;
70	mkdir cf::localdir . "/" . cf::playerdir;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		176
75	# a special map that is always available	177	mkdir $_
76	our $LINK_MAP;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		179
77	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
78		181
		182	sub cf::map::normalise;
		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
79	#############################################################################	188	#############################################################################
80		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
81	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
82		202
83	=over 4	203	=over 4
84		204
85	=item $cf::UPTIME	205	=item $cf::UPTIME
86		206
87	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.
88		223
89	=item $cf::RUNTIME	224	=item $cf::RUNTIME
90		225
91	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
92	every server tick.	227	every server tick.
93		228
94	=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
95		232
96	The perl library directory, where extensions and cf-specific modules can	233	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		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
99	=item $cf::NOW	244	=item $cf::LOAD
100		245
101	The time of the last (current) server tick.	246	The raw value load value from the last tick.
102
103	=item $cf::TICK
104
105	The interval between server ticks, in seconds.
106		247
107	=item %cf::CFG	248	=item %cf::CFG
108		249
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	251	from wherever your confdir points to.
111		252
		253	=item cf::wait_for_tick, cf::wait_for_tick_begin
		254
		255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		256	returns directly I<after> the tick processing (and consequently, can only wake one thread
		257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$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.
		287
112	=back	288	=back
113		289
114	=cut	290	=cut
115		291
116	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
117	*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 {
118	my $msg = join "", @_;	299	my $msg = join "", @_;
119	utf8::encode $msg;
120		300
121	$msg .= "\n"	301	$msg .= "\n"
122	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
123		303
		304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		305
124	LOG llevError, $msg;	306	LOG llevWarn, $msg;
125	};	307	};
126	}	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	};
127		322
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		330
135	# 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
136	# within the Safe compartment.	332	# within the Safe compartment.
137	for my $pkg (qw(	333	for my $pkg (qw(
138	cf::global cf::attachable	334	cf::global cf::attachable
139	cf::object cf::object::player	335	cf::object cf::object::player
140	cf::client cf::player	336	cf::client cf::player
141	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
142	cf::map cf::party cf::region	339	cf::party cf::region
143	)) {	340	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	342	}
147		343
148	$Event::DIED = sub {	344	$EV::DIED = sub {
149	warn "error in event callback: @_";	345	warn "error in event callback: $@";
150	};	346	};
151		347
152	my %ext_pkg;	348	#############################################################################
153	my @exts;	349
154	my @hook;	350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
155		354
156	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
157		356
158	=over 4	357	=over 4
159		358
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	378	$d
180	} || "[unable to dump $_[0]: '$@']";	379	} || "[unable to dump $_[0]: '$@']";
181	}	380	}
182		381
183	use JSON::Syck (); # TODO# replace by JSON::PC once working	382	=item $scalar = cf::load_file $path
184		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($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
185	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
186		435
187	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
188		437
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
197		439
198	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
199		441
200	=cut	442	=cut
201		443
202	sub to_json($) {	444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	445
204	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	}
205	}	509	}
206		510
207	=item cf::lock_wait $string	511	=item cf::lock_wait $string
208		512
209	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
210		514
211	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
212		516
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
216	returned.	520	returned.
217		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
218	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
219	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
220		527
221	=cut	528	=item $locked = cf::lock_active $string
222		529
223	our %LOCK;	530	Return true if the lock is currently active, i.e. somebody has locked it.
		531
		532	=cut
		533
		534	our $LOCKS = new Coro::SemaphoreSet;
224		535
225	sub lock_wait($) {	536	sub lock_wait($) {
226	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	538	}
234		539
235	sub lock_acquire($) {	540	sub lock_acquire($) {
236	my ($key) = @_;	541	$LOCKS->guard ($_[0])
		542	}
237		543
238	# wait, to be sure we are not locked	544	sub lock_active($) {
239	lock_wait $key;	545	$LOCKS->count ($_[0]) < 1
240
241	$LOCK{$key} = [];
242
243	Coro::guard {
244	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };
246	}
247	}	546	}
248		547
249	sub freeze_mainloop {	548	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
251		550
252	my $guard = Coro::guard { $TICK_WATCHER->start };	551	&Guard::guard (\&tick_inhibit_dec);
253	$TICK_WATCHER->stop;	552	}
254	$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	$sig->wait;
255	}	637	}
256		638
257	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
258		640
259	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		646
265	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
266		648
267	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
268		650
269	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
270	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
271	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
272		655
273	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
274	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
275	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
276	fast or be very important.	659	fast or be very important.
…		…
278	=cut	661	=cut
279		662
280	sub sync_job(&) {	663	sub sync_job(&) {
281	my ($job) = @_;	664	my ($job) = @_;
282		665
283	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
284	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
286		671
287	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
288	# (but this is cancel-safe)	673
289	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
290		675
291	my $busy = 1;	676	my $busy = 1;
292	my @res;	677	my @res;
293		678
294	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
295	@res = eval { $job->() };	681	@res = eval { $job->() };
296	warn $@ if $@;	682	error $@ if $@;
297	undef $busy;	683	undef $busy;
298	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
299		685
300	while ($busy) {	686	while ($busy) {
301	Coro::cede or Event::one_event;	687	if (Coro::nready) {
		688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
302	}	691	}
		692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
303		697
304	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
305	} else {	699	} else {
306	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
307		701
…		…
309	}	703	}
310	}	704	}
311		705
312	=item $coro = cf::async_ext { BLOCK }	706	=item $coro = cf::async_ext { BLOCK }
313		707
314	Like async, but this coro is automcatially being canceled when the	708	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	709	extension calling this is being unloaded.
316		710
317	=cut	711	=cut
318		712
319	sub async_ext(&) {	713	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
328		722
329	$coro	723	$coro
330	}	724	}
331		725
332	sub write_runtime {	726	=item fork_call { }, @args
333	my $runtime = cf::localdir . "/runtime";
334		727
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	728	Executes the given code block with the given arguments in a seperate
336	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.
337		732
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	733	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		734
342	aio_fsync $fh	735	sub post_fork {
343	and return;	736	reset_signals;
		737	}
344		738
345	close $fh	739	sub fork_call(&@) {
346	or return;	740	my ($cb, @args) = @_;
347		741
348	aio_rename "$runtime~", $runtime	742	# we seemingly have to make a local copy of the whole thing,
349	and return;	743	# otherwise perl prematurely frees the stuff :/
		744	# TODO: investigate and fix (likely this will be rather laborious)
350		745
		746	my @res = Coro::Util::fork_eval {
		747	cf::post_fork;
		748	&$cb
		749	} @args;
		750
		751	wantarray ? @res : $res[-1]
		752	}
		753
		754	sub objinfo {
351	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 });
352	}	929	}
353		930
354	=back	931	=back
355		932
356	=cut	933	=cut
357		934
358	#############################################################################	935	#############################################################################
359		936
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479
480	#############################################################################
481
482	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
483		938
484	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
485	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")
486	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
487		942
488	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>
489	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
490	crossfire+).	945	Deliantra).
491		946
492	=over 4	947	=over 4
493		948
494	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
495		950
…		…
539	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
540		995
541	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
542	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
543		998
544	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
545	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.
546		1001
547	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
548		1003
549	=over 4	1004	=over 4
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	1064	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	1065	our @CB_MAP = ();
611		1066
612	my %attachment;	1067	my %attachment;
613		1068
		1069	sub cf::attachable::thawer_merge {
		1070	# simply override everything except _meta
		1071	local $_[0]{_meta};
		1072	%{$_[0]} = %{$_[1]};
		1073	}
		1074
614	sub _attach_cb($$$$) {	1075	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	1076	my ($registry, $event, $prio, $cb) = @_;
616		1077
617	use sort 'stable';	1078	use sort 'stable';
618		1079
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
653		1114
654	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		1119
659	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
661		1122
662	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
667		1128
668	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
669	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
670		1131
671	} elsif (ref $type) {	1132	} elsif (ref $type) {
672	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
673		1134
674	} else {	1135	} else {
675	shift @arg;	1136	shift @arg;
676	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
677	}	1138	}
678	}	1139	}
679	}	1140	}
680		1141
681	sub _object_attach {	1142	sub _object_attach {
…		…
691	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
692	}	1153	}
693		1154
694	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
695	} else {	1156	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
697	}	1158	}
698		1159
699	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
700	}	1161	}
701		1162
…		…
703	if (ref $_[0]) {	1164	if (ref $_[0]) {
704	_object_attach @_;	1165	_object_attach @_;
705	} else {	1166	} else {
706	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
707	}	1168	}
		1169	_recalc_want;
708	};	1170	};
709		1171
710	# all those should be optimised	1172	# all those should be optimised
711	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
716	reattach ($obj);	1178	reattach ($obj);
717	} else {	1179	} else {
718	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
719	}	1181	}
		1182	_recalc_want;
720	};	1183	};
721		1184
722	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
724		1187
…		…
739	";	1202	";
740	die if $@;	1203	die if $@;
741	}	1204	}
742		1205
743	our $override;	1206	our $override;
744	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?
745		1208
746	sub override {	1209	sub override {
747	$override = 1;	1210	$override = 1;
748	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
749	}	1212	}
750		1213
751	sub do_invoke {	1214	sub do_invoke {
752	my $event = shift;	1215	my $event = shift;
753	my $callbacks = shift;	1216	my $callbacks = shift;
754		1217
755	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
756		1219
757	local $override;	1220	local $override;
758		1221
759	for (@$callbacks) {	1222	for (@$callbacks) {
760	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
761		1224
762	if ($@) {	1225	if ($@) {
763	warn "$@";
764	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
765	override;	1227	override;
766	}	1228	}
767		1229
768	return 1 if $override;	1230	return 1 if $override;
769	}	1231	}
770		1232
771	0	1233	0
772	}	1234	}
773		1235
774	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
775		1237
776	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
777		1239
778	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
779		1241
780	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
781	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
782	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		1245
784	=back	1246	=back
785		1247
786	=cut	1248	=cut
787		1249
788	#############################################################################	1250	#############################################################################
789	# 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	}
790		1294
791	sub reattach {	1295	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
793	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
794		1301
795	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
796		1303
797	@$registry = ();	1304	@$registry = ();
798		1305
…		…
803	for (@$attach) {	1310	for (@$attach) {
804	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
805	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
806	}	1313	}
807	} else {	1314	} else {
808	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
809	}	1316	}
810	}	1317	}
811	}	1318	}
812		1319
813	cf::attachable->attach (	1320	cf::attachable->attach (
814	prio => -1000000,	1321	prio => -1000000,
815	on_instantiate => sub {	1322	on_instantiate => sub {
816	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
817		1324
818	$data = from_json $data;	1325	$data = decode_json $data;
819		1326
820	for (@$data) {	1327	for (@$data) {
821	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
822		1329
823	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
839	sub object_freezer_save {	1346	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
841		1348
842	sync_job {	1349	sync_job {
843	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
846		1355
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
849	aio_write $fh, 0, (length $$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;
850	aio_fsync $fh;	1361	aio_fsync $fh;
		1362	}
851	close $fh;	1363	aio_close $fh;
852		1364
853	if (@$objs) {	1365	if (@$objs) {
854	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) {
855	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
857	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;
858	aio_fsync $fh;	1372	aio_fsync $fh;
		1373	}
859	close $fh;	1374	aio_close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
861	}	1376	}
862	} else {	1377	} else {
863	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
864	}	1379	}
865		1380
866	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
867	} else {	1385	} else {
868	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
869	}	1387	}
870	} else {	1388	} else {
871	aio_unlink $filename;	1389	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
873	}	1391	}
874	}	1392	};
875	}	1393	}
876		1394
877	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
879		1397
…		…
891	or return;	1409	or return;
892		1410
893	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
895	or return;	1413	or return;
		1414
896	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
897	}	1417	}
898		1418
		1419	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
901	return ($data, $av);	1424	($data, $av)
902	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
903		1432
904	#############################################################################	1433	#############################################################################
905	# command handling &c	1434	# command handling &c
906		1435
907	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1450	}
922		1451
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1453
925	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.
926		1459
927	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
928	called.	1461	called.
929		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
930	=cut	1474	=cut
931		1475
932	sub register_extcmd {	1476	sub register_extcmd {
933	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
934		1478
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1479	$EXTCMD{$name} = $cb;
939	}	1480	}
		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
940		1489
941	cf::player->attach (	1490	cf::player->attach (
942	on_command => sub {	1491	on_unknown_command => sub {
943	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
944		1493
945	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
946	or return;	1495	or return;
947		1496
…		…
952	cf::override;	1501	cf::override;
953	},	1502	},
954	on_extcmd => sub {	1503	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
956		1505
957	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1507
959	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
965	} else {	1520	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1522	}
968		1523
969	cf::override;	1524	cf::override;
970	},	1525	},
971	);	1526	);
972		1527
973	sub register {	1528	# "readahead" all extensions
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {	1529	sub cache_extensions {
980	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
981		1531
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
983	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
984	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }
1022
1023	# remove commands
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}	1535	}
1032	}	1536	};
1033		1537
1034	# remove extcmds	1538	$grp
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1539	}
1036	delete $EXTCMD{$name};
1037	}
1038		1540
1039	if (my $cb = $pkg->can ("unload")) {	1541	sub _ext_cfg_reg($$$$) {
1040	eval {	1542	my ($rvar, $varname, $cfgname, $default) = @_;
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045		1543
1046	Symbol::delete_package $pkg;	1544	$cfgname = lc $varname
		1545	unless length $cfgname;
		1546
		1547	$EXT_CFG{$cfgname} = [$rvar, $default];
		1548
		1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1047	}	1550	}
1048		1551
1049	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
1050	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1561	next unless -r $path;
1052	eval {	1562
1053	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 $active;
		1634	}
1054	1	1635	}
1055	} or warn "$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 $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
		1647	}
1056	}	1648	};
1057	}	1649	}
1058		1650
1059	#############################################################################	1651	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1652
1062	*cf::mapsupport::on_clean = sub {	1653	=back
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		1654
1097	=head2 CORE EXTENSIONS	1655	=head2 CORE EXTENSIONS
1098		1656
1099	Functions and methods that extend core crossfire objects.	1657	Functions and methods that extend core deliantra objects.
1100		1658
1101	=cut	1659	=cut
1102		1660
1103	package cf::player;	1661	package cf::player;
1104		1662
…		…
1106		1664
1107	=head3 cf::player	1665	=head3 cf::player
1108		1666
1109	=over 4	1667	=over 4
1110		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
1111	=item cf::player::find $login	1683	=item cf::player::find $login
1112		1684
1113	Returns the given player object, loading it if necessary (might block).	1685	Returns the given player object, loading it if necessary (might block).
1114		1686
1115	=cut	1687	=cut
1116		1688
1117	sub playerdir($) {	1689	sub playerdir($) {
1118	cf::localdir	1690	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1691	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1692	}
1124		1693
1125	sub path($) {	1694	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1695	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1696
1128	(playerdir $login) . "/$login.pl"	1697	(playerdir $login) . "/playerdata"
1129	}	1698	}
1130		1699
1131	sub find_active($) {	1700	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1701	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1702	and $cf::PLAYER{$_[0]}->active
…		…
1136		1705
1137	sub exists($) {	1706	sub exists($) {
1138	my ($login) = @_;	1707	my ($login) = @_;
1139		1708
1140	$cf::PLAYER{$login}	1709	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1710	or !aio_stat path $login
1142	}	1711	}
1143		1712
1144	sub find($) {	1713	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1714	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1715	my $login = $_[0];
1147		1716
1148	my $guard = cf::lock_acquire "user_find:$login";	1717	my $guard = cf::lock_acquire "user_find:$login";
1149		1718
1150	$cf::PLAYER{$_[0]} || do {	1719	$cf::PLAYER{$_[0]} || do {
1151	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
1152	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;
1153	$cf::PLAYER{$login} = $pl	1735	$cf::PLAYER{$login} = $pl
1154	}	1736	}
1155	}	1737	}
1156	}	1738	}
		1739
		1740	cf::player->attach (
		1741	on_load => sub {
		1742	my ($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	);
1157		1752
1158	sub save($) {	1753	sub save($) {
1159	my ($pl) = @_;	1754	my ($pl) = @_;
1160		1755
1161	return if $pl->{deny_save};	1756	return if $pl->{deny_save};
…		…
1166	return if $pl->{deny_save};	1761	return if $pl->{deny_save};
1167		1762
1168	aio_mkdir playerdir $pl, 0770;	1763	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1764	$pl->{last_save} = $cf::RUNTIME;
1170		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
1171	$pl->save_pl ($path);	1771	$pl->save_pl ($path);
1172	Coro::cede;	1772	cf::cede_to_tick;
1173	}	1773	}
1174		1774
1175	sub new($) {	1775	sub new($) {
1176	my ($login) = @_;	1776	my ($login) = @_;
1177		1777
…		…
1183	$cf::PLAYER{$login} = $self;	1783	$cf::PLAYER{$login} = $self;
1184		1784
1185	$self	1785	$self
1186	}	1786	}
1187		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
1188	=item $pl->quit_character	1798	=item $pl->quit_character
1189		1799
1190	Nukes the player without looking back. If logged in, the connection will	1800	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1801	be destroyed. May block for a long time.
1192		1802
1193	=cut	1803	=cut
1194		1804
1195	sub quit_character {	1805	sub quit_character {
1196	my ($pl) = @_;	1806	my ($pl) = @_;
1197		1807
		1808	my $name = $pl->ob->name;
		1809
1198	$pl->{deny_save} = 1;	1810	$pl->{deny_save} = 1;
1199	$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
1200		1812
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1202	$pl->deactivate;	1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1203	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
1204	$pl->ns->destroy if $pl->ns;	1820	$pl->ns->destroy if $pl->ns;
1205		1821
1206	my $path = playerdir $pl;	1822	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1823	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1824	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1825	delete $cf::PLAYER{$pl->ob->name};
1210	$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
1211	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;
1212	}	1848	}
1213		1849
1214	=item cf::player::list_logins	1850	=item cf::player::list_logins
1215		1851
1216	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
1217	while and may block, so not sync_job-capable, ever.	1853	while and may block, so not sync_job-capable, ever.
1218		1854
1219	=cut	1855	=cut
1220		1856
1221	sub list_logins {	1857	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1858	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1859	or return [];
1224		1860
1225	my @logins;	1861	my @logins;
1226		1862
1227	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") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1870	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
1231		1873
1232	utf8::decode $login;	1874	utf8::decode $login;
1233	push @logins, $login;	1875	push @logins, $login;
1234	}	1876	}
1235		1877
1236	\@logins	1878	\@logins
1237	}	1879	}
1238		1880
1239	=item $player->maps	1881	=item $player->maps
1240		1882
		1883	=item cf::player::maps $login
		1884
1241	Returns an arrayref of cf::path's of all maps that are private for this	1885	Returns an arrayref of map paths that are private for this
1242	player. May block.	1886	player. May block.
1243		1887
1244	=cut	1888	=cut
1245		1889
1246	sub maps($) {	1890	sub maps($) {
1247	my ($pl) = @_;	1891	my ($pl) = @_;
		1892
		1893	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1894
1249	my $files = aio_readdir playerdir $pl	1895	my $files = aio_readdir playerdir $pl
1250	or return;	1896	or return;
1251		1897
1252	my @paths;	1898	my @paths;
1253		1899
1254	for (@$files) {	1900	for (@$files) {
1255	utf8::decode $_;	1901	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1902	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1903	next unless /^$PATH_SEP/o;
1258		1904
1259	s/$PATH_SEP/\//g;	1905	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1906	}
1262		1907
1263	\@paths	1908	\@paths
1264	}	1909	}
1265		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1915	=item $player->ext_reply ($msgid, @msg)
1267		1916
1268	Sends an ext reply to the player.	1917	Sends an ext reply to the player.
1269		1918
1270	=cut	1919	=cut
1271		1920
1272	sub ext_reply($$$%) {	1921	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1922	my ($self, $id, @msg) = @_;
1274		1923
1275	$msg{msgid} = $id;	1924	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1925	}
1279		1926
1280	package cf;	1927	=item $player->ext_msg ($type, @msg)
		1928
		1929	Sends an ext event to the client.
		1930
		1931	=cut
		1932
		1933	sub ext_msg($$@) {
		1934	my ($self, $type, @msg) = @_;
		1935
		1936	$self->ns->ext_msg ($type, @msg);
		1937	}
		1938
		1939	=head3 cf::region
		1940
		1941	=over 4
		1942
		1943	=cut
		1944
		1945	package cf::region;
		1946
		1947	=item cf::region::find_by_path $path
		1948
		1949	Tries to decuce the likely region for a map knowing only its path.
		1950
		1951	=cut
		1952
		1953	sub find_by_path($) {
		1954	my ($path) = @_;
		1955
		1956	$path =~ s/^~[^\/]*//; # skip ~login
		1957
		1958	my ($match, $specificity);
		1959
		1960	for my $region (list) {
		1961	if ($region->{match} && $path =~ $region->{match}) {
		1962	($match, $specificity) = ($region, $region->specificity)
		1963	if $region->specificity > $specificity;
		1964	}
		1965	}
		1966
		1967	$match
		1968	}
1281		1969
1282	=back	1970	=back
1283
1284		1971
1285	=head3 cf::map	1972	=head3 cf::map
1286		1973
1287	=over 4	1974	=over 4
1288		1975
…		…
1291	package cf::map;	1978	package cf::map;
1292		1979
1293	use Fcntl;	1980	use Fcntl;
1294	use Coro::AIO;	1981	use Coro::AIO;
1295		1982
		1983	use overload
		1984	'""' => \&as_string,
		1985	fallback => 1;
		1986
1296	our $MAX_RESET = 3600;	1987	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1988	our $DEFAULT_RESET = 3000;
1298		1989
1299	sub generate_random_map {	1990	sub generate_random_map {
		1991	my ($self, $rmp) = @_;
		1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
		1995	$self->_create_random_map ($rmp);
		1996	}
		1997
		1998	=item cf::map->register ($regex, $prio)
		1999
		2000	Register a handler for the map path matching the given regex at the
		2001	givne priority (higher is better, built-in handlers have priority 0, the
		2002	default).
		2003
		2004	=cut
		2005
		2006	sub register {
		2007	my (undef, $regex, $prio) = @_;
		2008	my $pkg = caller;
		2009
		2010	push @{"$pkg\::ISA"}, __PACKAGE__;
		2011
		2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2013	}
		2014
		2015	# also paths starting with '/'
		2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2017
		2018	sub thawer_merge {
		2019	my ($self, $merge) = @_;
		2020
		2021	# we have to keep some variables in memory intact
		2022	local $self->{path};
		2023	local $self->{load_path};
		2024
		2025	$self->SUPER::thawer_merge ($merge);
		2026	}
		2027
		2028	sub normalise {
1300	my ($path, $rmp) = @_;	2029	my ($path, $base) = @_;
1301		2030
1302	# mit "rum" bekleckern, nicht	2031	$path = "$path"; # make sure it's a string
1303	cf::map::_create_random_map	2032
		2033	$path =~ s/\.map$//;
		2034
		2035	# map plan:
		2036	#
		2037	# /! non-realised random map exit (special hack!)
		2038	# {... are special paths that are not being touched
		2039	# ?xxx/... are special absolute paths
		2040	# ?random/... random maps
		2041	# /... normal maps
		2042	# ~user/... per-player map of a specific user
		2043
		2044	$path =~ s/$PATH_SEP/\//go;
		2045
		2046	# treat it as relative path if it starts with
		2047	# something that looks reasonable
		2048	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2049	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2050
		2051	$base =~ s{[^/]+/?$}{};
		2052	$path = "$base/$path";
		2053	}
		2054
		2055	for ($path) {
		2056	redo if s{/\.?/}{/};
		2057	redo if s{/[^/]+/\.\./}{/};
		2058	}
		2059
1304	$path,	2060	$path
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})
1316	}	2061	}
1317		2062
1318	# and all this just because we cannot iterate over	2063	sub new_from_path {
1319	# all maps in C++...	2064	my (undef, $path, $base) = @_;
1320	sub change_all_map_light {	2065
		2066	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2067
		2068	$path = normalise $path, $base;
		2069
		2070	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2071	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2072	my $self = bless cf::map::new, $pkg;
		2073	$self->{path} = $path; $self->path ($path);
		2074	$self->init; # pass $1 etc.
		2075	return $self;
		2076	}
		2077	}
		2078
		2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2080	()
		2081	}
		2082
		2083	# may re-bless or do other evil things
		2084	sub init {
1321	my ($change) = @_;	2085	my ($self) = @_;
1322		2086
1323	$_->change_map_light ($change)	2087	$self
1324	for grep $_->outdoor, values %cf::MAP;
1325	}	2088	}
1326		2089
		2090	sub as_string {
		2091	my ($self) = @_;
		2092
		2093	"$self->{path}"
		2094	}
		2095
		2096	# the displayed name, this is a one way mapping
		2097	sub visible_name {
		2098	&as_string
		2099	}
		2100
		2101	# the original (read-only) location
		2102	sub load_path {
		2103	my ($self) = @_;
		2104
		2105	"$MAPDIR/$self->{path}.map"
		2106	}
		2107
		2108	# the temporary/swap location
		2109	sub save_path {
		2110	my ($self) = @_;
		2111
		2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2113	"$TMPDIR/$path.map"
		2114	}
		2115
		2116	# the unique path, undef == no special unique path
		2117	sub uniq_path {
		2118	my ($self) = @_;
		2119
		2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2121	"$UNIQUEDIR/$path"
		2122	}
		2123
		2124	sub decay_objects {
		2125	my ($self) = @_;
		2126
		2127	return if $self->{deny_reset};
		2128
		2129	$self->do_decay_objects;
		2130	}
		2131
		2132	sub unlink_save {
		2133	my ($self) = @_;
		2134
		2135	utf8::encode (my $save = $self->save_path);
		2136	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2137	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2138	}
		2139
1327	sub try_load_header($) {	2140	sub load_header_from($) {
1328	my ($path) = @_;	2141	my ($self, $path) = @_;
1329		2142
1330	utf8::encode $path;	2143	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1332	or return;	2145	or return;
1333		2146
1334	my $map = cf::map::new	2147	$self->_load_header ($f)
1335	or return;	2148	or return;
1336		2149
1337	# for better error messages only, will be overwritten	2150	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	2151	$f->resolve_delayed_derefs;
1339		2152
1340	$map->load_header ($path)	2153	$self->{load_path} = $path;
		2154
		2155	1
		2156	}
		2157
		2158	# used to laod the header of an original map
		2159	sub load_header_orig {
		2160	my ($self) = @_;
		2161
		2162	$self->load_header_from ($self->load_path)
		2163	}
		2164
		2165	# used to laod the header of an instantiated map
		2166	sub load_header_temp {
		2167	my ($self) = @_;
		2168
		2169	$self->load_header_from ($self->save_path)
		2170	}
		2171
		2172	# called after loading the header from an instantiated map
		2173	sub prepare_temp {
		2174	my ($self) = @_;
		2175
		2176	$self->last_access ((delete $self->{last_access})
		2177	|| $cf::RUNTIME); #d#
		2178	# safety
		2179	$self->{instantiate_time} = $cf::RUNTIME
		2180	if $self->{instantiate_time} > $cf::RUNTIME;
		2181	}
		2182
		2183	# called after loading the header from an original map
		2184	sub prepare_orig {
		2185	my ($self) = @_;
		2186
		2187	$self->{load_original} = 1;
		2188	$self->{instantiate_time} = $cf::RUNTIME;
		2189	$self->last_access ($cf::RUNTIME);
		2190	$self->instantiate;
		2191	}
		2192
		2193	sub load_header {
		2194	my ($self) = @_;
		2195
		2196	if ($self->load_header_temp) {
		2197	$self->prepare_temp;
		2198	} else {
		2199	$self->load_header_orig
1341	or return;	2200	or return;
		2201	$self->prepare_orig;
		2202	}
1342		2203
1343	$map->{load_path} = $path;	2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
1344		2206
1345	$map	2207	$self->default_region (cf::region::find_by_path $self->{path})
		2208	unless $self->default_region;
		2209
		2210	1
1346	}	2211	}
1347		2212
1348	sub find;	2213	sub find;
1349	sub find {	2214	sub find {
1350	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1351		2216
1352	#warn "find<$path,$origin>\n";#d#	2217	cf::cede_to_tick;
1353		2218
1354	$path = new cf::path $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1355	my $key = $path->as_string;
1356		2220
1357	cf::lock_wait "map_find:$key";	2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1358
1359	$cf::MAP{$key} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	2222	my $guard2 = cf::lock_acquire "map_find:$path";
1361		2223
1362	# do it the slow way	2224	$cf::MAP{$path} || do {
1363	my $map = try_load_header $path->save_path;	2225	my $map = new_from_path cf::map $path
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	2226	or return;
1381		2227
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	2228	$map->{last_save} = $cf::RUNTIME;
1394		2229
1395	Coro::cede;	2230	$map->load_header
		2231	or return;
1396		2232
1397	if ($map->should_reset) {	2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2234	# doing this can freeze the server in a sync job, obviously
		2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1398	$map->reset;	2238	$map->reset;
1399	undef $guard;
1400	$map = find $path	2239	return find $path;
1401	or return;
1402	}	2240	}
1403		2241
1404	$cf::MAP{$key} = $map	2242	$cf::MAP{$path} = $map
1405	}	2243	}
1406	}	2244	}
		2245
		2246	sub pre_load { }
		2247	#sub post_load { } # XS
1407		2248
1408	sub load {	2249	sub load {
1409	my ($self) = @_;	2250	my ($self) = @_;
1410		2251
		2252	local $self->{deny_reset} = 1; # loading can take a long time
		2253
1411	my $path = $self->{path};	2254	my $path = $self->{path};
		2255
		2256	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2257	my $guard = cf::lock_acquire "map_data:$path";
1413		2258
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2259	return unless $self->valid;
		2260	return unless $self->state == cf::MAP_SWAPPED;
1415		2261
1416	$self->in_memory (cf::MAP_LOADING);
1417
1418	$self->alloc;	2262	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	2263
		2264	$self->pre_load;
		2265	cf::cede_to_tick;
		2266
		2267	if (exists $self->{load_path}) {
		2268	my $f = new_from_file cf::object::thawer $self->{load_path};
		2269	$f->skip_block;
		2270	$self->_load_objects ($f)
1420	or return;	2271	or return;
1421		2272
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1423	if delete $self->{load_original};	2274	if delete $self->{load_original};
1424		2275
1425	if (my $uniq = $path->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2277	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2280	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1430	}	2285	}
1431	}
1432		2286
1433	Coro::cede;	2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
1434		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1435	# now do the right thing for maps	2296	# now do the right thing for maps
1436	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	2299	unless $self->difficulty;
1448	$self->activate;	2300	cf::cede_to_tick;
		2301
		2302	unless ($self->{deny_activate}) {
		2303	$self->decay_objects;
		2304	$self->fix_auto_apply;
		2305	$self->update_buttons;
		2306	cf::cede_to_tick;
		2307	#$self->activate; # no longer activate maps automatically
		2308	}
		2309
		2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
		2312	}
		2313
		2314	$self->post_load;
		2315
1449	}	2316	1
		2317	}
1450		2318
1451	Coro::cede;	2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
		2322	sub customise_for {
		2323	my ($self, $ob) = @_;
1452		2324
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2325	return find "~" . $ob->name . "/" . $self->{path}
		2326	if $self->per_player;
		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
		2331	$self
1454	}	2332	}
1455		2333
1456	sub find_sync {	2334	sub find_sync {
1457	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1458		2336
1459	cf::sync_job { cf::map::find $path, $origin }	2337	# it's a bug to call this from the main context
		2338	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2339	if $Coro::current == $Coro::main;
		2340
		2341	find $path, $origin
1460	}	2342	}
1461		2343
1462	sub do_load_sync {	2344	sub do_load_sync {
1463	my ($map) = @_;	2345	my ($map) = @_;
1464		2346
1465	cf::sync_job { $map->load };	2347	# it's a bug to call this from the main context
		2348	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2349	if $Coro::current == $Coro::main;
		2350
		2351	$map->load;
		2352	}
		2353
		2354	our %MAP_PREFETCH;
		2355	our $MAP_PREFETCHER = undef;
		2356
		2357	sub find_async {
		2358	my ($path, $origin, $load) = @_;
		2359
		2360	$path = normalise $path, $origin;
		2361
		2362	if (my $map = $cf::MAP{$path}) {
		2363	return $map if !$load || $map->linkable;
		2364	}
		2365
		2366	$MAP_PREFETCH{$path} |= $load;
		2367
		2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
		2371	while (%MAP_PREFETCH) {
		2372	while (my ($k, $v) = each %MAP_PREFETCH) {
		2373	if (my $map = find $k) {
		2374	$map->load if $v;
		2375	}
		2376
		2377	delete $MAP_PREFETCH{$k};
		2378	}
		2379	}
		2380	undef $MAP_PREFETCHER;
		2381	};
		2382	$MAP_PREFETCHER->prio (6);
		2383
		2384	()
		2385	}
		2386
		2387	# common code, used by both ->save and ->swapout
		2388	sub _save {
		2389	my ($self) = @_;
		2390
		2391	$self->{last_save} = $cf::RUNTIME;
		2392
		2393	return unless $self->dirty;
		2394
		2395	my $save = $self->save_path; utf8::encode $save;
		2396	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2397
		2398	$self->{load_path} = $save;
		2399
		2400	return if $self->{deny_save};
		2401
		2402	local $self->{last_access} = $self->last_access;#d#
		2403
		2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
		2406	$_->contr->save for $self->players;
		2407	};
		2408
		2409	cf::get_slot 0.02;
		2410
		2411	if ($uniq) {
		2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2414	} else {
		2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2416	}
1466	}	2417	}
1467		2418
1468	sub save {	2419	sub save {
1469	my ($self) = @_;	2420	my ($self) = @_;
1470		2421
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2423
1473	$self->{last_save} = $cf::RUNTIME;	2424	$self->_save;
1474
1475	return unless $self->dirty;
1476
1477	my $save = $self->{path}->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1479
1480	$self->{load_path} = $save;
1481
1482	return if $self->{deny_save};
1483
1484	local $self->{last_access} = $self->last_access;#d#
1485
1486	cf::async {
1487	$_->contr->save for $self->players;
1488	};
1489
1490	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}
1496	}	2425	}
1497		2426
1498	sub swap_out {	2427	sub swap_out {
1499	my ($self) = @_;	2428	my ($self) = @_;
1500		2429
1501	# save first because save cedes
1502	$self->save;
1503
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1506	return if $self->players;	2434	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};
1509		2435
		2436	# first deactivate the map and "unlink" it from the core
		2437	$self->deactivate;
		2438	$_->clear_links_to ($self) for values %cf::MAP;
		2439	$self->state (cf::MAP_SWAPPED);
		2440
		2441	# then atomically save
		2442	$self->_save;
		2443
		2444	# then free the map
1510	$self->clear;	2445	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2446	}
1513		2447
1514	sub reset_at {	2448	sub reset_at {
1515	my ($self) = @_;	2449	my ($self) = @_;
1516		2450
1517	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1520		2453
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2455	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2456
…		…
1528	my ($self) = @_;	2461	my ($self) = @_;
1529		2462
1530	$self->reset_at <= $cf::RUNTIME	2463	$self->reset_at <= $cf::RUNTIME
1531	}	2464	}
1532		2465
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	2466	sub reset {
1555	my ($self) = @_;	2467	my ($self) = @_;
1556		2468
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2470
1559	return if $self->players;	2471	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2472
1562	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
		2474
		2475	$self->state (cf::MAP_SWAPPED);
		2476
		2477	# need to save uniques path
		2478	unless ($self->{deny_save}) {
		2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2480
		2481	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2482	if $uniq;
		2483	}
1563		2484
1564	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1565		2486
		2487	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2488	$_->clear_links_to ($self) for values %cf::MAP;
		2489	$self->clear;
1567		2490
1568	$self->unlink_save;	2491	$self->unlink_save;
1569	$self->destroy;	2492	$self->destroy;
1570	}	2493	}
1571		2494
1572	my $nuke_counter = "aaaa";	2495	my $nuke_counter = "aaaa";
1573		2496
1574	sub nuke {	2497	sub nuke {
1575	my ($self) = @_;	2498	my ($self) = @_;
1576		2499
		2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2502
		2503	delete $cf::MAP{$self->path};
		2504
		2505	$self->unlink_save;
		2506
		2507	bless $self, "cf::map::wrap";
		2508	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2509	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2510	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2512
		2513	$cf::MAP{$self->path} = $self;
		2514	}
		2515
1580	$self->reset; # polite request, might not happen	2516	$self->reset; # polite request, might not happen
1581	}	2517	}
1582		2518
1583	sub customise_for {	2519	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2520
1586	if ($map->per_player) {	2521	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2522	maps. May block.
		2523
		2524	=cut
		2525
		2526	sub tmp_maps() {
1588	}	2527	[
1589		2528	map {
1590	$map	2529	utf8::decode $_;
		2530	/\.map$/
		2531	? normalise $_
		2532	: ()
		2533	} @{ aio_readdir $TMPDIR or [] }
		2534	]
1591	}	2535	}
1592		2536
1593	sub emergency_save {	2537	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2538
1596	warn "enter emergency perl save\n";	2539	Returns an arrayref with all map paths of currently instantiated and saved
		2540	random maps. May block.
1597		2541
1598	cf::sync_job {	2542	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2543
1603	warn "begin emergency map save\n";	2544	sub random_maps() {
1604	$_->save for values %cf::MAP;	2545	[
1605	warn "end emergency map save\n";	2546	map {
		2547	utf8::decode $_;
		2548	/\.map$/
		2549	? normalise "?random/$_"
		2550	: ()
		2551	} @{ aio_readdir $RANDOMDIR or [] }
		2552	]
		2553	}
		2554
		2555	=item cf::map::unique_maps
		2556
		2557	Returns an arrayref of paths of all shared maps that have
		2558	instantiated unique items. May block.
		2559
		2560	=cut
		2561
		2562	sub unique_maps() {
		2563	[
		2564	map {
		2565	utf8::decode $_;
		2566	s/\.map$//; # TODO future compatibility hack
		2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2568	? ()
		2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
		2571	]
		2572	}
		2573
		2574	=item cf::map::static_maps
		2575
		2576	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2577	file in the shared directory excluding F</styles> and F</editor>). May
		2578	block.
		2579
		2580	=cut
		2581
		2582	sub static_maps() {
		2583	my @dirs = "";
		2584	my @maps;
		2585
		2586	while (@dirs) {
		2587	my $dir = shift @dirs;
		2588
		2589	next if $dir eq "/styles" || $dir eq "/editor";
		2590
		2591	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2592	or return;
		2593
		2594	for (@$files) {
		2595	s/\.map$// or next;
		2596	utf8::decode $_;
		2597	push @maps, "$dir/$_";
		2598	}
		2599
		2600	push @dirs, map "$dir/$_", @$dirs;
1606	};	2601	}
1607		2602
1608	warn "leave emergency perl save\n";	2603	\@maps
		2604	}
		2605
		2606	=back
		2607
		2608	=head3 cf::object
		2609
		2610	=cut
		2611
		2612	package cf::object;
		2613
		2614	=over 4
		2615
		2616	=item $ob->inv_recursive
		2617
		2618	Returns the inventory of the object I<and> their inventories, recursively,
		2619	but I<not> the object itself.
		2620
		2621	=cut
		2622
		2623	sub inv_recursive_;
		2624	sub inv_recursive_ {
		2625	map { $_, inv_recursive_ $_->inv } @_
		2626	}
		2627
		2628	sub inv_recursive {
		2629	inv_recursive_ inv $_[0]
		2630	}
		2631
		2632	=item $ref = $ob->ref
		2633
		2634	Creates and returns a persistent reference to an object that can be stored as a string.
		2635
		2636	=item $ob = cf::object::deref ($refstring)
		2637
		2638	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2639	even if the object actually exists. May block.
		2640
		2641	=cut
		2642
		2643	sub deref {
		2644	my ($ref) = @_;
		2645
		2646	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2647	my ($uuid, $name) = ($1, $2);
		2648	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2649	or return;
		2650	$pl->ob->uuid eq $uuid
		2651	or return;
		2652
		2653	$pl->ob
		2654	} else {
		2655	warn "$ref: cannot resolve object reference\n";
		2656	undef
		2657	}
1609	}	2658	}
1610		2659
1611	package cf;	2660	package cf;
1612		2661
1613	=back	2662	=back
1614
1615		2663
1616	=head3 cf::object::player	2664	=head3 cf::object::player
1617		2665
1618	=over 4	2666	=over 4
1619		2667
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2670	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2671	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1625		2673
1626	=cut	2674	=cut
		2675
		2676	our $SAY_CHANNEL = {
		2677	id => "say",
		2678	title => "Map",
		2679	reply => "say ",
		2680	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2681	};
		2682
		2683	our $CHAT_CHANNEL = {
		2684	id => "chat",
		2685	title => "Chat",
		2686	reply => "chat ",
		2687	tooltip => "Player chat and shouts, global to the server.",
		2688	};
1627		2689
1628	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2691	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2692	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1633		2695
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2697
1636	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1638	} else {	2701	} else {
		2702	my $pl = $self->contr;
		2703
		2704	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2705	my $dialog = $pl->{npc_dialog};
		2706	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2707
		2708	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1641	}	2712	}
		2713	}
		2714
		2715	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2716
		2717	=cut
		2718
		2719	sub cf::object::send_msg {
		2720	my $pl = shift->contr
		2721	or return;
		2722	$pl->send_msg (@_);
1642	}	2723	}
1643		2724
1644	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1645		2726
1646	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1659		2740
1660	=item $player_object->enter_link	2741	=item $player_object->enter_link
1661		2742
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2743	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2744
1664	The player should be reaosnably safe there for short amounts of time. You	2745	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2746	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2747	though, as the player cannot control the character while it is on the link
		2748	map.
		2749
		2750	Will never block.
1666		2751
1667	=item $player_object->leave_link ($map, $x, $y)	2752	=item $player_object->leave_link ($map, $x, $y)
1668		2753
1669	Moves the player out of the specila link map onto the given map. If the	2754	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2755	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2756	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2757	fails, to the emergency map position.
1673		2758
1674	Might block.	2759	Might block.
1675		2760
1676	=cut	2761	=cut
		2762
		2763	sub link_map {
		2764	unless ($LINK_MAP) {
		2765	$LINK_MAP = cf::map::find "{link}"
		2766	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2767	$LINK_MAP->load;
		2768	}
		2769
		2770	$LINK_MAP
		2771	}
1677		2772
1678	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2774	my ($self) = @_;
1680		2775
1681	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
1682		2777
1683	return if $self->map == $LINK_MAP;	2778	++$self->{_link_recursion};
		2779
		2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2781
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2783	if $self->map && $self->map->{path} ne "{link}";
1687		2784
1688	$self->enter_map ($LINK_MAP, 20, 20);	2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1689	}	2786	}
1690		2787
1691	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
		2790
		2791	return unless $self->contr->active;
1693		2792
1694	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1695		2794
1696	unless ($map) {	2795	unless ($map) {
1697	# restore original map position	2796	# restore original map position
…		…
1708	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1709	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1710		2809
1711	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1714		2813
1715	$map->load;	2814	$map->load;
1716		2815
1717	return unless $self->contr->active;	2816	return unless $self->contr->active;
		2817
		2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2819	if ($self->enter_map ($map, $x, $y)) {
		2820	# entering was successful
		2821	delete $self->{_link_recursion};
		2822	# only activate afterwards, to support waiting in hooks
1718	$self->activate_recursive;	2823	$self->activate_recursive;
1719	$self->enter_map ($map, $x, $y);
1720	}
1721
1722	cf::player->attach (
1723	on_logout => sub {
1724	my ($pl) = @_;
1725
1726	# abort map switching before logout
1727	if ($pl->ob->{_link_pos}) {
1728	cf::sync_job {
1729	$pl->ob->leave_link
1730	};
1731	}
1732	},	2824	}
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2825
1736	# try to abort aborted map switching on player login :)	2826	}
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753		2827
1754	=item $player_object->goto ($path, $x, $y)	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1755		2829
		2830	Moves the player to the given map-path and coordinates by first freezing
		2831	her, loading and preparing them map, calling the provided $check callback
		2832	that has to return the map if sucecssful, and then unfreezes the player on
		2833	the new (success) or old (failed) map position. In either case, $done will
		2834	be called at the end of this process.
		2835
		2836	Note that $check will be called with a potentially non-loaded map, so if
		2837	it needs a loaded map it has to call C<< ->load >>.
		2838
1756	=cut	2839	=cut
		2840
		2841	our $GOTOGEN;
1757		2842
1758	sub cf::object::player::goto {	2843	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2844	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2845
1761	$path = new cf::path $path;	2846	if ($self->{_link_recursion} >= $MAX_LINKS) {
1762	$path ne "/" or Carp::cluck ("oy");#d#	2847	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2848	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2849	($path, $x, $y) = @$EMERGENCY_POSITION;
		2850	}
		2851
		2852	# do generation counting so two concurrent goto's will be executed in-order
		2853	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2854
1764	$self->enter_link;	2855	$self->enter_link;
1765		2856
1766	(async {	2857	(async {
1767	my $map = cf::map::find $path->as_string;	2858	$Coro::current->{desc} = "player::goto $path $x $y";
		2859
		2860	# *tag paths override both path and x|y
		2861	if ($path =~ /^\*(.*)$/) {
		2862	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2863	my $ob = $obs[rand @obs];
		2864
		2865	# see if we actually can go there
		2866	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2867	$ob = $obs[rand @obs];
		2868	} else {
		2869	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2870	}
		2871	# else put us there anyways for now #d#
		2872
		2873	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2874	} else {
		2875	($path, $x, $y) = (undef, undef, undef);
		2876	}
		2877	}
		2878
		2879	my $map = eval {
		2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2883	$map = $map->customise_for ($self);
1769		2884	$map = $check->($map, $x, $y, $self) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2885	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2886	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
1774		2888
		2889	$map
		2890	};
		2891
		2892	if ($@) {
		2893	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2894	LOG llevError | logBacktrace, Carp::longmess $@;
		2895	}
		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1776	})->prio (1);	2903	})->prio (1);
1777	}	2904	}
1778		2905
1779	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
1780		2907
…		…
1782		2909
1783	sub parse_random_map_params {	2910	sub parse_random_map_params {
1784	my ($spec) = @_;	2911	my ($spec) = @_;
1785		2912
1786	my $rmp = { # defaults	2913	my $rmp = { # defaults
1787	xsize => 10,	2914	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2915	ysize => (cf::rndm 15, 40),
		2916	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2917	#layout => string,
1789	};	2918	};
1790		2919
1791	for (split /\n/, $spec) {	2920	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2921	my ($k, $v) = split /\s+/, $_, 2;
1793		2922
…		…
1805	# that depends on the exit object	2934	# that depends on the exit object
1806		2935
1807	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
1808		2937
1809	if ($exit->map) {	2938	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2939	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
1814	}	2945	}
1815		2946
1816	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
1817		2948
1818	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1819	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
		2951	my $meta = "$RANDOMDIR/$md5.meta";
1820		2952
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
		2955	undef $fh;
		2956	aio_rename "$meta~", $meta;
1823		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
1824	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
1826	}	2964	}
1827	}	2965	}
1828		2966
1829	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
…		…
1832	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
1833		2971
1834	$self->enter_link;	2972	$self->enter_link;
1835		2973
1836	(async {	2974	(async {
1837	$self->deactivate_recursive; # just to be sure	2975	$Coro::current->{desc} = "enter_exit";
		2976
1838	unless (eval {	2977	unless (eval {
		2978	$self->deactivate_recursive; # just to be sure
		2979
		2980	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2981	my $x = $exit->stats->hp;
		2982	my $y = $exit->stats->sp;
		2983
		2984	# special map handling
		2985	my $slaying = $exit->slaying;
		2986
		2987	# special map handling
		2988	if ($slaying eq "/!") {
		2989	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2990
1839	prepare_random_map $exit	2991	prepare_random_map $exit
		2992	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2993
1840	if $exit->slaying eq "/!";	2994	$map = $exit->slaying;
1841		2995
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2996	} elsif ($slaying eq '!up') {
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2997	$map = $exit->map->tile_path (cf::TILE_UP);
		2998	$x = $exit->x;
		2999	$y = $exit->y;
1844		3000
		3001	} elsif ($slaying eq '!down') {
		3002	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3003	$x = $exit->x;
		3004	$y = $exit->y;
		3005	}
		3006
		3007	$self->goto ($map, $x, $y);
		3008
		3009	# if exit is damned, update players death & WoR home-position
		3010	$self->contr->savebed ($map, $x, $y)
		3011	if $exit->flag (cf::FLAG_DAMNED);
		3012
1845	1;	3013	1
1846	}) {	3014	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
1848	. "I'll try to bring you back to the map you were before. "	3016	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	3017	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
1851		3019
1852	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
1853	$self->leave_link;	3021	$self->leave_link;
1854	}	3022	}
1855	})->prio (1);	3023	})->prio (1);
1856	}	3024	}
1857		3025
…		…
1868		3036
1869	sub cf::client::send_drawinfo {	3037	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	3038	my ($self, $text, $flags) = @_;
1871		3039
1872	utf8::encode $text;	3040	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	3042	}
1875		3043
		3044	=item $client->send_big_packet ($pkt)
		3045
		3046	Like C<send_packet>, but tries to compress large packets, and fragments
		3047	them as required.
		3048
		3049	=cut
		3050
		3051	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3052
		3053	sub cf::client::send_big_packet {
		3054	my ($self, $pkt) = @_;
		3055
		3056	# try lzf for large packets
		3057	$pkt = "lzf " . Compress::LZF::compress $pkt
		3058	if 1024 <= length $pkt and $self->{can_lzf};
		3059
		3060	# split very large packets
		3061	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3062	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3063	$pkt = "frag";
		3064	}
		3065
		3066	$self->send_packet ($pkt);
		3067	}
		3068
		3069	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3070
		3071	Send a drawinfo or msg packet to the client, formatting the msg for the
		3072	client if neccessary. C<$type> should be a string identifying the type of
		3073	the message, with C<log> being the default. If C<$color> is negative, suppress
		3074	the message unless the client supports the msg packet.
		3075
		3076	=cut
		3077
		3078	# non-persistent channels (usually the info channel)
		3079	our %CHANNEL = (
		3080	"c/motd" => {
		3081	id => "infobox",
		3082	title => "MOTD",
		3083	reply => undef,
		3084	tooltip => "The message of the day",
		3085	},
		3086	"c/identify" => {
		3087	id => "infobox",
		3088	title => "Identify",
		3089	reply => undef,
		3090	tooltip => "Items recently identified",
		3091	},
		3092	"c/examine" => {
		3093	id => "infobox",
		3094	title => "Examine",
		3095	reply => undef,
		3096	tooltip => "Signs and other items you examined",
		3097	},
		3098	"c/shopinfo" => {
		3099	id => "infobox",
		3100	title => "Shop Info",
		3101	reply => undef,
		3102	tooltip => "What your bargaining skill tells you about the shop",
		3103	},
		3104	"c/book" => {
		3105	id => "infobox",
		3106	title => "Book",
		3107	reply => undef,
		3108	tooltip => "The contents of a note or book",
		3109	},
		3110	"c/lookat" => {
		3111	id => "infobox",
		3112	title => "Look",
		3113	reply => undef,
		3114	tooltip => "What you saw there",
		3115	},
		3116	"c/who" => {
		3117	id => "infobox",
		3118	title => "Players",
		3119	reply => undef,
		3120	tooltip => "Shows players who are currently online",
		3121	},
		3122	"c/body" => {
		3123	id => "infobox",
		3124	title => "Body Parts",
		3125	reply => undef,
		3126	tooltip => "Shows which body parts you posess and are available",
		3127	},
		3128	"c/statistics" => {
		3129	id => "infobox",
		3130	title => "Statistics",
		3131	reply => undef,
		3132	tooltip => "Shows your primary statistics",
		3133	},
		3134	"c/skills" => {
		3135	id => "infobox",
		3136	title => "Skills",
		3137	reply => undef,
		3138	tooltip => "Shows your experience per skill and item power",
		3139	},
		3140	"c/shopitems" => {
		3141	id => "infobox",
		3142	title => "Shop Items",
		3143	reply => undef,
		3144	tooltip => "Shows the items currently for sale in this shop",
		3145	},
		3146	"c/resistances" => {
		3147	id => "infobox",
		3148	title => "Resistances",
		3149	reply => undef,
		3150	tooltip => "Shows your resistances",
		3151	},
		3152	"c/pets" => {
		3153	id => "infobox",
		3154	title => "Pets",
		3155	reply => undef,
		3156	tooltip => "Shows information abotu your pets/a specific pet",
		3157	},
		3158	"c/perceiveself" => {
		3159	id => "infobox",
		3160	title => "Perceive Self",
		3161	reply => undef,
		3162	tooltip => "You gained detailed knowledge about yourself",
		3163	},
		3164	"c/uptime" => {
		3165	id => "infobox",
		3166	title => "Uptime",
		3167	reply => undef,
		3168	tooltip => "How long the server has been running since last restart",
		3169	},
		3170	"c/mapinfo" => {
		3171	id => "infobox",
		3172	title => "Map Info",
		3173	reply => undef,
		3174	tooltip => "Information related to the maps",
		3175	},
		3176	"c/party" => {
		3177	id => "party",
		3178	title => "Party",
		3179	reply => "gsay ",
		3180	tooltip => "Messages and chat related to your party",
		3181	},
		3182	"c/death" => {
		3183	id => "death",
		3184	title => "Death",
		3185	reply => undef,
		3186	tooltip => "Reason for and more info about your most recent death",
		3187	},
		3188	"c/say" => $SAY_CHANNEL,
		3189	"c/chat" => $CHAT_CHANNEL,
		3190	);
		3191
		3192	sub cf::client::send_msg {
		3193	my ($self, $channel, $msg, $color, @extra) = @_;
		3194
		3195	$msg = $self->pl->expand_cfpod ($msg)
		3196	unless $color & cf::NDI_VERBATIM;
		3197
		3198	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3199
		3200	# check predefined channels, for the benefit of C
		3201	if ($CHANNEL{$channel}) {
		3202	$channel = $CHANNEL{$channel};
		3203
		3204	$self->ext_msg (channel_info => $channel);
		3205	$channel = $channel->{id};
		3206
		3207	} elsif (ref $channel) {
		3208	# send meta info to client, if not yet sent
		3209	unless (exists $self->{channel}{$channel->{id}}) {
		3210	$self->{channel}{$channel->{id}} = $channel;
		3211	$self->ext_msg (channel_info => $channel);
		3212	}
		3213
		3214	$channel = $channel->{id};
		3215	}
		3216
		3217	return unless @extra || length $msg;
		3218
		3219	# default colour, mask it out
		3220	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3221	if $color & cf::NDI_DEF;
		3222
		3223	my $pkt = "msg "
		3224	. $self->{json_coder}->encode (
		3225	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3226	);
		3227
		3228	$self->send_big_packet ($pkt);
		3229	}
		3230
		3231	=item $client->ext_msg ($type, @msg)
		3232
		3233	Sends an ext event to the client.
		3234
		3235	=cut
		3236
		3237	sub cf::client::ext_msg($$@) {
		3238	my ($self, $type, @msg) = @_;
		3239
		3240	if ($self->extcmd == 2) {
		3241	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3242	} elsif ($self->extcmd == 1) { # TODO: remove
		3243	push @msg, msgtype => "event_$type";
		3244	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3245	}
		3246	}
		3247
		3248	=item $client->ext_reply ($msgid, @msg)
		3249
		3250	Sends an ext reply to the client.
		3251
		3252	=cut
		3253
		3254	sub cf::client::ext_reply($$@) {
		3255	my ($self, $id, @msg) = @_;
		3256
		3257	return unless $self->extcmd == 2;
		3258
		3259	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3260	}
1876		3261
1877	=item $success = $client->query ($flags, "text", \&cb)	3262	=item $success = $client->query ($flags, "text", \&cb)
1878		3263
1879	Queues a query to the client, calling the given callback with	3264	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3265	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3266	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		3267
1883	Queries can fail, so check the return code. Or don't, as queries will become	3268	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	3269	become reliable at some point in the future.
1885		3270
1886	=cut	3271	=cut
1887		3272
1888	sub cf::client::query {	3273	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	3274	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	3282	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3283	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		3284
1900	$self->send_packet ($self->{query_queue}[0][0])	3285	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	3286	if @{ $self->{query_queue} } == 1;
		3287
		3288	1
1902	}	3289	}
1903		3290
1904	cf::client->attach (	3291	cf::client->attach (
		3292	on_connect => sub {
		3293	my ($ns) = @_;
		3294
		3295	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3296	},
1905	on_reply => sub {	3297	on_reply => sub {
1906	my ($ns, $msg) = @_;	3298	my ($ns, $msg) = @_;
1907		3299
1908	# this weird shuffling is so that direct followup queries	3300	# this weird shuffling is so that direct followup queries
1909	# get handled first	3301	# get handled first
1910	my $queue = delete $ns->{query_queue}	3302	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	3303	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		3304
1913	(shift @$queue)->[1]->($msg);	3305	(shift @$queue)->[1]->($msg);
		3306	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		3307
1915	push @{ $ns->{query_queue} }, @$queue;	3308	push @{ $ns->{query_queue} }, @$queue;
1916		3309
1917	if (@{ $ns->{query_queue} } == @$queue) {	3310	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	3311	if (@$queue) {
…		…
1920	} else {	3313	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3314	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	3315	}
1923	}	3316	}
1924	},	3317	},
		3318	on_exticmd => sub {
		3319	my ($ns, $buf) = @_;
		3320
		3321	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3322
		3323	if (ref $msg) {
		3324	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3325
		3326	my @reply;
		3327
		3328	if (my $cb = $EXTICMD{$type}) {
		3329	@reply = $cb->($ns, @payload);
		3330	}
		3331
		3332	$ns->ext_reply ($reply, @reply)
		3333	if $reply;
		3334
		3335	} else {
		3336	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3337	}
		3338
		3339	cf::override;
		3340	},
1925	);	3341	);
1926		3342
1927	=item $client->async (\&cb)	3343	=item $client->async (\&cb)
1928		3344
1929	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
…		…
1945		3361
1946	$coro	3362	$coro
1947	}	3363	}
1948		3364
1949	cf::client->attach (	3365	cf::client->attach (
1950	on_destroy => sub {	3366	on_client_destroy => sub {
1951	my ($ns) = @_;	3367	my ($ns) = @_;
1952		3368
1953	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1954	},	3370	},
1955	);	3371	);
…		…
1970	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
1972		3388
1973	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
1974		3390
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3391	$safe->permit_only (Opcode::opset qw(
		3392	:base_core :base_mem :base_orig :base_math :base_loop
		3393	grepstart grepwhile mapstart mapwhile
		3394	sort time
		3395	));
1976		3396
1977	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
1978		3398
1979	=pod	3399	=pod
1980		3400
1981	The following fucntions and emthods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
1982		3402
1983	cf::object contr pay_amount pay_player map	3403	cf::object
		3404	contr pay_amount pay_player map x y force_find force_add destroy
		3405	insert remove name archname title slaying race decrease split
		3406	value
		3407
1984	cf::object::player player	3408	cf::object::player
1985	cf::player peaceful	3409	player
1986	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
1987		3416
1988	=cut	3417	=cut
1989		3418
1990	for (	3419	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	3420	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3421	insert remove inv nrof name archname title slaying race
		3422	decrease split destroy change_exp value msg lore send_msg)],
1992	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
1994	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
1995	) {	3426	) {
1996	no strict 'refs';
1997	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
1998	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1999	for @funs;	3429	for @funs;
2000	}	3430	}
2001		3431
…		…
2016		3446
2017	my $qcode = $code;	3447	my $qcode = $code;
2018	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2019	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
2020		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
2021	local $_;	3454	local $_;
2022	local @safe::cf::_safe_eval_args = values %vars;
2023		3455
2024	my $eval =	3456	my $eval =
2025	"do {\n"	3457	"do {\n"
2026	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2027	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
2028	. $code	3460	. $code
2029	. "\n}"	3461	. "\n}"
2030	;	3462	;
2031		3463
		3464	if ($CFG{safe_eval}) {
2032	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
2033	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2034	sub_generation_inc;	3468	sub_generation_inc;
		3469	} else {
		3470	local @cf::_safe_eval_args = values %vars;
		3471	@res = wantarray ? eval eval : scalar eval $eval;
		3472	}
2035		3473
2036	if ($@) {	3474	if ($@) {
2037	warn "$@";	3475	warn "$@",
2038	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
2039	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
2040	}	3478	}
2041		3479
2042	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
2043	}	3481	}
2044		3482
…		…
2058	=cut	3496	=cut
2059		3497
2060	sub register_script_function {	3498	sub register_script_function {
2061	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
2062		3500
2063	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
2064	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
2065	}	3503	}
2066		3504
2067	=back	3505	=back
2068		3506
2069	=cut	3507	=cut
2070		3508
2071	#############################################################################	3509	#############################################################################
		3510	# the server's init and main functions
2072		3511
2073	=head2 EXTENSION DATABASE SUPPORT	3512	our %FACEHASH; # hash => idx, #d# HACK for http server
2074		3513
2075	Crossfire maintains a very simple database for extension use. It can	3514	sub load_facedata($) {
2076	currently store anything that can be serialised using Storable, which	3515	my ($path) = @_;
2077	excludes objects.
2078		3516
2079	The parameter C<$family> should best start with the name of the extension	3517	# HACK to clear player env face cache, we need some signal framework
2080	using it, it should be unique.	3518	# for this (global event?)
		3519	%ext::player_env::MUSIC_FACE_CACHE = ();
2081		3520
2082	=over 4	3521	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2083		3522
2084	=item $hashref = cf::db_get $family	3523	trace "loading facedata from $path\n";
2085		3524
2086	Return a hashref for use by the extension C<$family>, which can be	3525	my $facedata = decode_storable load_file $path;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		3526
2090	=item $value = cf::db_get $family => $key	3527	$facedata->{version} == 2
		3528	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		3529
2092	Returns a single value from the database	3530	# patch in the exptable
2093		3531	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2094	=item cf::db_put $family => $hashref	3532	$facedata->{resource}{"res/exp_table"} = {
2095		3533	type => FT_RSRC,
2096	Stores the given family hashref into the database. Updates are delayed, if	3534	data => $exp_table,
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3535	hash => (cf::face::mangle_chksum Digest::MD5::md5 $exp_table),
2098
2099	=item cf::db_put $family => $key => $value
2100
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111
2112	=cut
2113
2114	our $DB;
2115
2116	{
2117	my $path = cf::localdir . "/database.pst";
2118
2119	sub db_load() {
2120	$DB = stat $path ? Storable::retrieve $path : { };
2121	}
2122
2123	my $pid;
2124
2125	sub db_save() {
2126	waitpid $pid, 0 if $pid;
2127	if (0 == ($pid = fork)) {
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	3536	};
		3537	cf::cede_to_tick;
2145		3538
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3539	{
		3540	my $faces = $facedata->{faceinfo};
2150		3541
2151	sub db_get($;$) {	3542	for my $face (sort keys %$faces) {
2152	@_ >= 2	3543	my $info = $faces->{$face};
2153	? $DB->{$_[0]}{$_[1]}	3544	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		3545
2157	sub db_put($$;$) {	3546	cf::face::set_visibility $idx, $info->{visibility};
2158	if (@_ >= 3) {	3547	cf::face::set_magicmap $idx, $info->{magicmap};
2159	$DB->{$_[0]}{$_[1]} = $_[2];	3548	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2160	} else {	3549	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2161	$DB->{$_[0]} = $_[1];	3550	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2162	}	3551	$FACEHASH{$info->{hash64}} = $idx;#d#
2163	db_dirty;
2164	}
2165		3552
2166	cf::global->attach (	3553	cf::cede_to_tick;
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	3554	}
2171	);
2172	}
2173		3555
2174	#############################################################################	3556	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3557	next unless $info->{smooth};
2176		3558
2177	sub cfg_load {	3559	my $idx = cf::face::find $face
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3560	or next;
2179	or return;
2180		3561
2181	local $/;	3562	if (my $smooth = cf::face::find $info->{smooth}) {
2182	*CFG = YAML::Syck::Load <$fh>;	3563	cf::face::set_smooth $idx, $smooth;
		3564	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3565	} else {
		3566	error "smooth face '$info->{smooth}' not found for face '$face'";
		3567	}
2183		3568
		3569	cf::cede_to_tick;
		3570	}
		3571	}
		3572
		3573	{
		3574	my $anims = $facedata->{animinfo};
		3575
		3576	while (my ($anim, $info) = each %$anims) {
		3577	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3578	cf::cede_to_tick;
		3579	}
		3580
		3581	cf::anim::invalidate_all; # d'oh
		3582	}
		3583
		3584	{
		3585	my $res = $facedata->{resource};
		3586
		3587	while (my ($name, $info) = each %$res) {
		3588	if (defined (my $type = $info->{type})) {
		3589	# TODO: different hash - must free and use new index, or cache ixface data queue
		3590	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3591
		3592	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3593	cf::face::set_type $idx, $type;
		3594	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3595	$FACEHASH{$info->{hash}} = $idx;#d#
		3596	} else {
		3597	# $RESOURCE{$name} = $info; # unused
		3598	}
		3599
		3600	cf::cede_to_tick;
		3601	}
		3602	}
		3603
		3604	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3605
		3606	1
		3607	}
		3608
		3609	register_exticmd fx_want => sub {
		3610	my ($ns, $want) = @_;
		3611
		3612	while (my ($k, $v) = each %$want) {
		3613	$ns->fx_want ($k, $v);
		3614	}
		3615	};
		3616
		3617	sub load_resource_file($) {
		3618	my $guard = lock_acquire "load_resource_file";
		3619
		3620	my $status = load_resource_file_ $_[0];
		3621	get_slot 0.1, 100;
		3622	cf::arch::commit_load;
		3623
		3624	$status
		3625	}
		3626
		3627	sub reload_regions {
		3628	# HACK to clear player env face cache, we need some signal framework
		3629	# for this (global event?)
		3630	%ext::player_env::MUSIC_FACE_CACHE = ();
		3631
		3632	load_resource_file "$MAPDIR/regions"
		3633	or die "unable to load regions file\n";
		3634
		3635	for (cf::region::list) {
		3636	$_->{match} = qr/$_->{match}/
		3637	if exists $_->{match};
		3638	}
		3639	}
		3640
		3641	sub reload_facedata {
		3642	load_facedata "$DATADIR/facedata"
		3643	or die "unable to load facedata\n";
		3644	}
		3645
		3646	sub reload_archetypes {
		3647	load_resource_file "$DATADIR/archetypes"
		3648	or die "unable to load archetypes\n";
		3649	}
		3650
		3651	sub reload_treasures {
		3652	load_resource_file "$DATADIR/treasures"
		3653	or die "unable to load treasurelists\n";
		3654	}
		3655
		3656	sub reload_sound {
		3657	trace "loading sound config from $DATADIR/sound\n";
		3658
		3659	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3660
		3661	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3662	my $sound = $soundconf->{compat}[$_]
		3663	or next;
		3664
		3665	my $face = cf::face::find "sound/$sound->[1]";
		3666	cf::sound::set $sound->[0] => $face;
		3667	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3668	}
		3669
		3670	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3671	my $face = cf::face::find "sound/$v";
		3672	cf::sound::set $k => $face;
		3673	}
		3674	}
		3675
		3676	sub reload_resources {
		3677	trace "reloading resource files...\n";
		3678
		3679	reload_exp_table;
		3680	reload_materials;
		3681	reload_facedata;
		3682	reload_sound;
		3683	reload_archetypes;
		3684	reload_regions;
		3685	reload_treasures;
		3686
		3687	trace "finished reloading resource files\n";
		3688	}
		3689
		3690	sub reload_config {
		3691	trace "reloading config file...\n";
		3692
		3693	my $config = load_file "$CONFDIR/config";
		3694	utf8::decode $config;
		3695	*CFG = decode_yaml $config;
		3696
2184	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3697	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2185		3698
2186	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3699	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2187	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3700	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2188		3701
2189	if (exists $CFG{mlockall}) {	3702	if (exists $CFG{mlockall}) {
…		…
2193	};	3706	};
2194	warn $@ if $@;	3707	warn $@ if $@;
2195	}	3708	}
2196	}	3709	}
2197		3710
		3711	sub pidfile() {
		3712	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3713	or die "$PIDFILE: $!";
		3714	flock $fh, &Fcntl::LOCK_EX
		3715	or die "$PIDFILE: flock: $!";
		3716	$fh
		3717	}
		3718
		3719	# make sure only one server instance is running at any one time
		3720	sub atomic {
		3721	my $fh = pidfile;
		3722
		3723	my $pid = <$fh>;
		3724	kill 9, $pid if $pid > 0;
		3725
		3726	seek $fh, 0, 0;
		3727	print $fh $$;
		3728	}
		3729
		3730	sub main_loop {
		3731	trace "EV::loop starting\n";
		3732	if (1) {
		3733	EV::loop;
		3734	}
		3735	trace "EV::loop returned\n";
		3736	goto &main_loop unless $REALLY_UNLOOP;
		3737	}
		3738
2198	sub main {	3739	sub main {
		3740	cf::init_globals; # initialise logging
		3741
		3742	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3743	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3744	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3745	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3746
		3747	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3748
2199	# we must not ever block the main coroutine	3749	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3750	$Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3751	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2202	async { Event::one_event };	3752	(async {
		3753	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3754	EV::loop EV::LOOP_ONESHOT;
		3755	})->prio (Coro::PRIO_MAX);
2203	};	3756	};
2204		3757
2205	cfg_load;	3758	evthread_start IO::AIO::poll_fileno;
2206	db_load;	3759
		3760	cf::sync_job {
		3761	cf::incloader::init ();
		3762
		3763	cf::init_anim;
		3764	cf::init_attackmess;
		3765	cf::init_dynamic;
		3766
		3767	cf::load_settings;
		3768
		3769	reload_resources;
		3770	reload_config;
		3771	db_init;
		3772
		3773	cf::init_uuid;
		3774	cf::init_signals;
		3775	cf::init_skills;
		3776
		3777	cf::init_beforeplay;
		3778
		3779	atomic;
		3780
2207	load_extensions;	3781	load_extensions;
2208	Event::loop;	3782
		3783	utime time, time, $RUNTIMEFILE;
		3784
		3785	# no (long-running) fork's whatsoever before this point(!)
		3786	use POSIX ();
		3787	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3788
		3789	cf::_post_init 0;
		3790	};
		3791
		3792	cf::object::thawer::errors_are_fatal 0;
		3793	info "parse errors in files are no longer fatal from this point on.\n";
		3794
		3795	AE::postpone {
		3796	undef &main; # free gobs of memory :)
		3797	};
		3798
		3799	goto &main_loop;
2209	}	3800	}
2210		3801
2211	#############################################################################	3802	#############################################################################
2212	# initialisation	3803	# initialisation and cleanup
2213		3804
		3805	# install some emergency cleanup handlers
		3806	BEGIN {
		3807	our %SIGWATCHER = ();
		3808	for my $signal (qw(INT HUP TERM)) {
		3809	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3810	cf::cleanup "SIG$signal";
		3811	};
		3812	}
		3813	}
		3814
		3815	sub write_runtime_sync {
		3816	my $t0 = AE::time;
		3817
		3818	# first touch the runtime file to show we are still running:
		3819	# the fsync below can take a very very long time.
		3820
		3821	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3822
		3823	my $guard = cf::lock_acquire "write_runtime";
		3824
		3825	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3826	or return;
		3827
		3828	my $value = $cf::RUNTIME + 90 + 10;
		3829	# 10 is the runtime save interval, for a monotonic clock
		3830	# 60 allows for the watchdog to kill the server.
		3831
		3832	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3833	and return;
		3834
		3835	# always fsync - this file is important
		3836	aio_fsync $fh
		3837	and return;
		3838
		3839	# touch it again to show we are up-to-date
		3840	aio_utime $fh, undef, undef;
		3841
		3842	close $fh
		3843	or return;
		3844
		3845	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3846	and return;
		3847
		3848	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3849
		3850	1
		3851	}
		3852
		3853	our $uuid_lock;
		3854	our $uuid_skip;
		3855
		3856	sub write_uuid_sync($) {
		3857	$uuid_skip ||= $_[0];
		3858
		3859	return if $uuid_lock;
		3860	local $uuid_lock = 1;
		3861
		3862	my $uuid = "$LOCALDIR/uuid";
		3863
		3864	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3865	or return;
		3866
		3867	my $value = uuid_seq uuid_cur;
		3868
		3869	unless ($value) {
		3870	info "cowardly refusing to write zero uuid value!\n";
		3871	return;
		3872	}
		3873
		3874	my $value = uuid_str $value + $uuid_skip;
		3875	$uuid_skip = 0;
		3876
		3877	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3878	and return;
		3879
		3880	# always fsync - this file is important
		3881	aio_fsync $fh
		3882	and return;
		3883
		3884	close $fh
		3885	or return;
		3886
		3887	aio_rename "$uuid~", $uuid
		3888	and return;
		3889
		3890	trace "uuid file written ($value).\n";
		3891
		3892	1
		3893
		3894	}
		3895
		3896	sub write_uuid($$) {
		3897	my ($skip, $sync) = @_;
		3898
		3899	$sync ? write_uuid_sync $skip
		3900	: async { write_uuid_sync $skip };
		3901	}
		3902
		3903	sub emergency_save() {
		3904	my $freeze_guard = cf::freeze_mainloop;
		3905
		3906	info "emergency_perl_save: enter\n";
		3907
		3908	# this is a trade-off: we want to be very quick here, so
		3909	# save all maps without fsync, and later call a global sync
		3910	# (which in turn might be very very slow)
		3911	local $USE_FSYNC = 0;
		3912
		3913	cf::sync_job {
		3914	cf::write_runtime_sync; # external watchdog should not bark
		3915
		3916	# use a peculiar iteration method to avoid tripping on perl
		3917	# refcount bugs in for. also avoids problems with players
		3918	# and maps saved/destroyed asynchronously.
		3919	info "emergency_perl_save: begin player save\n";
		3920	for my $login (keys %cf::PLAYER) {
		3921	my $pl = $cf::PLAYER{$login} or next;
		3922	$pl->valid or next;
		3923	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3924	$pl->save;
		3925	}
		3926	info "emergency_perl_save: end player save\n";
		3927
		3928	cf::write_runtime_sync; # external watchdog should not bark
		3929
		3930	info "emergency_perl_save: begin map save\n";
		3931	for my $path (keys %cf::MAP) {
		3932	my $map = $cf::MAP{$path} or next;
		3933	$map->valid or next;
		3934	$map->save;
		3935	}
		3936	info "emergency_perl_save: end map save\n";
		3937
		3938	cf::write_runtime_sync; # external watchdog should not bark
		3939
		3940	info "emergency_perl_save: begin database checkpoint\n";
		3941	BDB::db_env_txn_checkpoint $DB_ENV;
		3942	info "emergency_perl_save: end database checkpoint\n";
		3943
		3944	info "emergency_perl_save: begin write uuid\n";
		3945	write_uuid_sync 1;
		3946	info "emergency_perl_save: end write uuid\n";
		3947
		3948	cf::write_runtime_sync; # external watchdog should not bark
		3949
		3950	trace "emergency_perl_save: syncing database to disk";
		3951	BDB::db_env_txn_checkpoint $DB_ENV;
		3952
		3953	info "emergency_perl_save: starting sync\n";
		3954	IO::AIO::aio_sync sub {
		3955	info "emergency_perl_save: finished sync\n";
		3956	};
		3957
		3958	cf::write_runtime_sync; # external watchdog should not bark
		3959
		3960	trace "emergency_perl_save: flushing outstanding aio requests";
		3961	while (IO::AIO::nreqs || BDB::nreqs) {
		3962	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3963	}
		3964
		3965	cf::write_runtime_sync; # external watchdog should not bark
		3966	};
		3967
		3968	info "emergency_perl_save: leave\n";
		3969	}
		3970
		3971	sub post_cleanup {
		3972	my ($make_core) = @_;
		3973
		3974	IO::AIO::flush;
		3975
		3976	error Carp::longmess "post_cleanup backtrace"
		3977	if $make_core;
		3978
		3979	my $fh = pidfile;
		3980	unlink $PIDFILE if <$fh> == $$;
		3981	}
		3982
		3983	# a safer delete_package, copied from Symbol
		3984	sub clear_package($) {
		3985	my $pkg = shift;
		3986
		3987	# expand to full symbol table name if needed
		3988	unless ($pkg =~ /^main::.*::$/) {
		3989	$pkg = "main$pkg" if $pkg =~ /^::/;
		3990	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3991	$pkg .= '::' unless $pkg =~ /::$/;
		3992	}
		3993
		3994	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3995	my $stem_symtab = *{$stem}{HASH};
		3996
		3997	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3998	or return;
		3999
		4000	# clear all symbols
		4001	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4002	for my $name (keys %$leaf_symtab) {
		4003	_gv_clear *{"$pkg$name"};
		4004	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4005	}
		4006	}
		4007
2214	sub reload() {	4008	sub do_reload_perl() {
2215	# can/must only be called in main	4009	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	4010	unless (in_main) {
2217	warn "can only reload from main coroutine\n";	4011	error "can only reload from main coroutine";
2218	return;	4012	return;
2219	}	4013	}
2220		4014
2221	warn "reloading...";	4015	return if $RELOAD++;
2222		4016
2223	my $guard = freeze_mainloop;	4017	my $t1 = AE::time;
		4018
		4019	while ($RELOAD) {
		4020	cf::get_slot 0.1, -1, "reload_perl";
		4021	info "perl_reload: reloading...";
		4022
		4023	trace "perl_reload: entering sync_job";
		4024
		4025	cf::sync_job {
2224	cf::emergency_save;	4026	#cf::emergency_save;
2225		4027
2226	eval {	4028	trace "perl_reload: cancelling all extension coros";
2227	# if anything goes wrong in here, we should simply crash as we already saved
2228
2229	# cancel all watchers
2230	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}
2233
2234	# cancel all extension coros
2235	$_->cancel for values %EXT_CORO;	4029	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	4030	%EXT_CORO = ();
2237		4031
2238	# unload all extensions	4032	trace "perl_reload: removing commands";
2239	for (@exts) {	4033	%COMMAND = ();
2240	warn "unloading <$_>";
2241	unload_extension $_;
2242	}
2243		4034
2244	# unload all modules loaded from $LIBDIR	4035	trace "perl_reload: removing ext/exti commands";
2245	while (my ($k, $v) = each %INC) {	4036	%EXTCMD = ();
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4037	%EXTICMD = ();
2247		4038
2248	warn "removing <$k>";	4039	trace "perl_reload: unloading/nuking all extensions";
2249	delete $INC{$k};	4040	for my $pkg (@EXTS) {
		4041	trace "... unloading $pkg";
2250		4042
2251	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;
2253
2254	if (my $cb = $k->can ("unload_module")) {	4043	if (my $cb = $pkg->can ("unload")) {
		4044	eval {
2255	$cb->();	4045	$cb->($pkg);
		4046	1
		4047	} or error "$pkg unloaded, but with errors: $@";
		4048	}
		4049
		4050	trace "... clearing $pkg";
		4051	clear_package $pkg;
2256	}	4052	}
2257		4053
2258	Symbol::delete_package $k;	4054	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4055	while (my ($k, $v) = each %INC) {
		4056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4057
		4058	trace "... unloading $k";
		4059	delete $INC{$k};
		4060
		4061	$k =~ s/\.pm$//;
		4062	$k =~ s/\//::/g;
		4063
		4064	if (my $cb = $k->can ("unload_module")) {
		4065	$cb->();
		4066	}
		4067
		4068	clear_package $k;
2259	}	4069	}
2260		4070
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	4071	trace "perl_reload: getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	4072	clear_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4073	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		4074
2269	# remove register_script_function callbacks	4075	trace "perl_reload: unloading cf.pm \"a bit\"";
2270	# TODO
2271
2272	# unload cf.pm "a bit"
2273	delete $INC{"cf.pm"};	4076	delete $INC{"cf.pm"};
		4077	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2274		4078
2275	# don't, removes xs symbols, too,	4079	# don't, removes xs symbols, too,
2276	# and global variables created in xs	4080	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	4081	#clear_package __PACKAGE__;
2278		4082
2279	# reload cf.pm	4083	info "perl_reload: unload completed, starting to reload now";
2280	warn "reloading cf.pm";	4084
		4085	trace "perl_reload: reloading cf.pm";
2281	require cf;	4086	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4087	cf::_connect_to_perl_1;
2283		4088
2284	# load config and database again	4089	trace "perl_reload: loading config and database again";
2285	cf::cfg_load;	4090	cf::reload_config;
2286	cf::db_load;
2287		4091
2288	# load extensions	4092	trace "perl_reload: loading extensions";
2289	warn "load extensions";
2290	cf::load_extensions;	4093	cf::load_extensions;
2291		4094
2292	# reattach attachments to objects	4095	if ($REATTACH_ON_RELOAD) {
2293	warn "reattach";	4096	trace "perl_reload: reattaching attachments to objects/players";
2294	_global_reattach;	4097	_global_reattach; # objects, sockets
		4098	trace "perl_reload: reattaching attachments to maps";
2295	reattach $_ for values %MAP;	4099	reattach $_ for values %MAP;
		4100	trace "perl_reload: reattaching attachments to players";
		4101	reattach $_ for values %PLAYER;
		4102	}
		4103
		4104	cf::_post_init 1;
		4105
		4106	trace "perl_reload: leaving sync_job";
		4107
		4108	1
		4109	} or do {
		4110	error $@;
		4111	cf::cleanup "perl_reload: error, exiting.";
		4112	};
		4113
		4114	--$RELOAD;
		4115	}
		4116
		4117	$t1 = AE::time - $t1;
		4118	info "perl_reload: completed in ${t1}s\n";
		4119	};
		4120
		4121	our $RELOAD_WATCHER; # used only during reload
		4122
		4123	sub reload_perl() {
		4124	# doing reload synchronously and two reloads happen back-to-back,
		4125	# coro crashes during coro_state_free->destroy here.
		4126
		4127	$RELOAD_WATCHER ||= cf::async {
		4128	Coro::AIO::aio_wait cache_extensions;
		4129
		4130	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4131	do_reload_perl;
		4132	undef $RELOAD_WATCHER;
		4133	};
2296	};	4134	};
2297
2298	if ($@) {
2299	warn $@;
2300	warn "error while reloading, exiting.";
2301	exit 1;
2302	}
2303
2304	warn "reloaded successfully";
2305	};
2306
2307	#############################################################################
2308
2309	unless ($LINK_MAP) {
2310	$LINK_MAP = cf::map::new;
2311
2312	$LINK_MAP->width (41);
2313	$LINK_MAP->height (41);
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,
2322	cb => sub {
2323	$_[0]->w->cancel;
2324
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});
2343
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	4135	}
2349
2350	register "<global>", __PACKAGE__;
2351		4136
2352	register_command "reload" => sub {	4137	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	4138	my ($who, $arg) = @_;
2354		4139
2355	if ($who->flag (FLAG_WIZ)) {	4140	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	4141	$who->message ("reloading server.");
		4142	async {
		4143	$Coro::current->{desc} = "perl_reload";
		4144	reload_perl;
		4145	};
2359	}	4146	}
2360	};	4147	};
2361		4148
2362	unshift @INC, $LIBDIR;	4149	#############################################################################
2363		4150
2364	$TICK_WATCHER = Event->timer (	4151	my $bug_warning = 0;
2365	reentrant => 0,
2366	prio => 0,
2367	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,
2369	cb => sub {
2370	cf::server_tick; # one server iteration
2371	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;
2373		4152
2374	# if we are delayed by four ticks or more, skip them all	4153	sub wait_for_tick() {
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4154	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2376		4155
2377	$TICK_WATCHER->at ($NEXT_TICK);	4156	$WAIT_FOR_TICK->wait;
2378	$TICK_WATCHER->start;	4157	}
		4158
		4159	sub wait_for_tick_begin() {
		4160	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4161
		4162	my $signal = new Coro::Signal;
		4163	push @WAIT_FOR_TICK_BEGIN, $signal;
		4164	$signal->wait;
		4165	}
		4166
		4167	sub tick {
		4168	if ($Coro::current != $Coro::main) {
		4169	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4170	unless ++$bug_warning > 10;
		4171	return;
2379	},	4172	}
2380	);
2381		4173
2382	IO::AIO::max_poll_time $TICK * 0.2;	4174	cf::one_tick; # one server iteration
2383		4175
2384	Event->io (	4176	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2385	fd => IO::AIO::poll_fileno,
2386	poll => 'r',
2387	prio => 5,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391		4177
2392	Event->timer (	4178	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2393	data => WF_AUTOCANCEL,	4179	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2394	after => 0,	4180	Coro::async_pool {
2395	interval => 10,	4181	$Coro::current->{desc} = "runtime saver";
2396	cb => sub {
2397	(Coro::unblock_sub {
2398	write_runtime	4182	write_runtime_sync
2399	or warn "ERROR: unable to write runtime file: $!";	4183	or error "ERROR: unable to write runtime file: $!";
2400	})->();	4184	};
2401	},	4185	}
2402	);	4186
		4187	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4188	$sig->send;
		4189	}
		4190	$WAIT_FOR_TICK->broadcast;
		4191
		4192	$LOAD = ($NOW - $TICK_START) / $TICK;
		4193	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4194
		4195	if (0) {
		4196	if ($NEXT_TICK) {
		4197	my $jitter = $TICK_START - $NEXT_TICK;
		4198	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4199	debug "jitter $JITTER\n";#d#
		4200	}
		4201	}
		4202	}
		4203
		4204	{
		4205	# configure BDB
		4206
		4207	BDB::min_parallel 16;
		4208	BDB::max_poll_reqs $TICK * 0.1;
		4209	#$AnyEvent::BDB::WATCHER->priority (1);
		4210
		4211	unless ($DB_ENV) {
		4212	$DB_ENV = BDB::db_env_create;
		4213	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4214	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4215	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4216	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4217	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4218
		4219	cf::sync_job {
		4220	eval {
		4221	BDB::db_env_open
		4222	$DB_ENV,
		4223	$BDBDIR,
		4224	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4225	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4226	0666;
		4227
		4228	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4229	};
		4230
		4231	cf::cleanup "db_env_open(db): $@" if $@;
		4232	};
		4233	}
		4234
		4235	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4236	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4237	};
		4238	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4239	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4240	};
		4241	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4242	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4243	};
		4244	}
		4245
		4246	{
		4247	# configure IO::AIO
		4248
		4249	IO::AIO::min_parallel 8;
		4250	IO::AIO::max_poll_time $TICK * 0.1;
		4251	undef $AnyEvent::AIO::WATCHER;
		4252	}
		4253
		4254	our $_log_backtrace;
		4255	our $_log_backtrace_last;
		4256
		4257	sub _log_backtrace {
		4258	my ($msg, @addr) = @_;
		4259
		4260	$msg =~ s/\n$//;
		4261
		4262	if ($_log_backtrace_last eq $msg) {
		4263	LOG llevInfo, "[ABT] $msg\n";
		4264	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4265	# limit the # of concurrent backtraces
		4266	} elsif ($_log_backtrace < 2) {
		4267	$_log_backtrace_last = $msg;
		4268	++$_log_backtrace;
		4269	my $perl_bt = Carp::longmess $msg;
		4270	async {
		4271	$Coro::current->{desc} = "abt $msg";
		4272
		4273	my @bt = fork_call {
		4274	@addr = map { sprintf "%x", $_ } @addr;
		4275	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4276	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4277	or die "addr2line: $!";
		4278
		4279	my @funcs;
		4280	my @res = <$fh>;
		4281	chomp for @res;
		4282	while (@res) {
		4283	my ($func, $line) = splice @res, 0, 2, ();
		4284	push @funcs, "[$func] $line";
		4285	}
		4286
		4287	@funcs
		4288	};
		4289
		4290	LOG llevInfo, "[ABT] $perl_bt\n";
		4291	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4292	LOG llevInfo, "[ABT] $_\n" for @bt;
		4293	--$_log_backtrace;
		4294	};
		4295	} else {
		4296	LOG llevInfo, "[ABT] $msg\n";
		4297	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4298	}
		4299	}
		4300
		4301	# load additional modules
		4302	require "cf/$_.pm" for @EXTRA_MODULES;
		4303	cf::_connect_to_perl_2;
2403		4304
2404	END { cf::emergency_save }	4305	END { cf::emergency_save }
2405		4306
2406	1	4307	1
2407		4308

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