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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.146 by root, Sun Jan 7 23:10:43 2007 UTC vs.
Revision 1.584 by root, Tue Oct 30 17:07:50 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.32 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	#our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		135
		136	our $UPTIME; $UPTIME ||= time;
		137	our $RUNTIME = 0;
		138	our $SERVER_TICK = 0;
45	our $NOW;	139	our $NOW;
46		140
47	our %CFG;	141	our (%PLAYER, %PLAYER_LOADING); # all users
		142	our (%MAP, %MAP_LOADING ); # all maps
		143	our $LINK_MAP; # the special {link} map, which is always available
48		144
49	our $UPTIME; $UPTIME ||= time;	145	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	146	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		147
52	our %PLAYER; # all users	148	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our %MAP; # all maps	149	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $LINK_MAP; # the special {link} map	150	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	151	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO; # coroutines bound to extensions	152
		153	our @POST_INIT;
		154
		155	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		156	our $REALLY_UNLOOP; # never set to true, please :)
		157
		158	our $WAIT_FOR_TICK = new Coro::Signal;
		159	our @WAIT_FOR_TICK_BEGIN;
57		160
58	binmode STDOUT;	161	binmode STDOUT;
59	binmode STDERR;	162	binmode STDERR;
60		163
61	# read virtual server time, if available	164	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	165	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	166	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	167	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	168	$RUNTIME = <$fh> + 0.;
66	}	169	}
67		170
68	mkdir cf::localdir;	171	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		172
74	# a special map that is always available	173	mkdir $_
75	our $LINK_MAP;	174	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		175
76	our $EMERGENCY_POSITION;	176	our $EMERGENCY_POSITION;
77		177
		178	sub cf::map::normalise;
		179
		180	sub in_main() {
		181	$Coro::current == $Coro::main
		182	}
		183
78	#############################################################################	184	#############################################################################
79		185
		186	%REFLECT = ();
		187	for (@REFLECT) {
		188	my $reflect = JSON::XS::decode_json $_;
		189	$REFLECT{$reflect->{class}} = $reflect;
		190	}
		191
		192	# this is decidedly evil
		193	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		194
		195	#############################################################################
		196
80	=head2 GLOBAL VARIABLES	197	=head2 GLOBAL VARIABLES
81		198
82	=over 4	199	=over 4
83		200
84	=item $cf::UPTIME	201	=item $cf::UPTIME
85		202
86	The timestamp of the server start (so not actually an uptime).	203	The timestamp of the server start (so not actually an "uptime").
		204
		205	=item $cf::SERVER_TICK
		206
		207	An unsigned integer that starts at zero when the server is started and is
		208	incremented on every tick.
		209
		210	=item $cf::NOW
		211
		212	The (real) time of the last (current) server tick - updated before and
		213	after tick processing, so this is useful only as a rough "what time is it
		214	now" estimate.
		215
		216	=item $cf::TICK
		217
		218	The interval between each server tick, in seconds.
87		219
88	=item $cf::RUNTIME	220	=item $cf::RUNTIME
89		221
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	222	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	223	every server tick.
92		224
93	=item $cf::LIBDIR	225	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		226	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		227	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		228
95	The perl library directory, where extensions and cf-specific modules can	229	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	230	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		231	unique-items directory, player file directory, random maps directory and
		232	database environment.
97		233
		234	=item $cf::LOADAVG
		235
		236	The current CPU load on the server (alpha-smoothed), as a value between 0
		237	(none) and 1 (overloaded), indicating how much time is spent on processing
		238	objects per tick. Healthy values are < 0.5.
		239
98	=item $cf::NOW	240	=item $cf::LOAD
99		241
100	The time of the last (current) server tick.	242	The raw value load value from the last tick.
101
102	=item $cf::TICK
103
104	The interval between server ticks, in seconds.
105		243
106	=item %cf::CFG	244	=item %cf::CFG
107		245
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	246	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	247	from wherever your confdir points to.
110		248
		249	=item cf::wait_for_tick, cf::wait_for_tick_begin
		250
		251	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		252	returns directly I<after> the tick processing (and consequently, can only wake one thread
		253	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		254
		255	Note that cf::Wait_for_tick will immediately return when the server is not
		256	ticking, making it suitable for small pauses in threads that need to run
		257	when the server is paused. If that is not applicable (i.e. you I<really>
		258	want to wait, use C<$cf::WAIT_FOR_TICK>).
		259
		260	=item $cf::WAIT_FOR_TICK
		261
		262	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		263	variable contains a L<Coro::Signal> that is broadcats after every server
		264	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		265	next server tick.
		266
		267	=cut
		268
		269	sub wait_for_tick();
		270	sub wait_for_tick_begin();
		271
		272	=item @cf::INVOKE_RESULTS
		273
		274	This array contains the results of the last C<invoke ()> call. When
		275	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		276	that call.
		277
		278	=item %cf::REFLECT
		279
		280	Contains, for each (C++) class name, a hash reference with information
		281	about object members (methods, scalars, arrays and flags) and other
		282	metadata, which is useful for introspection.
		283
111	=back	284	=back
112		285
113	=cut	286	=cut
114		287
115	BEGIN {	288	sub error(@) { LOG llevError, join "", @_ }
116	*CORE::GLOBAL::warn = sub {	289	sub warn (@) { LOG llevWarn , join "", @_ }
		290	sub info (@) { LOG llevInfo , join "", @_ }
		291	sub debug(@) { LOG llevDebug, join "", @_ }
		292	sub trace(@) { LOG llevTrace, join "", @_ }
		293
		294	$Coro::State::WARNHOOK = sub {
117	my $msg = join "", @_;	295	my $msg = join "", @_;
118	utf8::encode $msg;
119		296
120	$msg .= "\n"	297	$msg .= "\n"
121	unless $msg =~ /\n$/;	298	unless $msg =~ /\n$/;
122		299
		300	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		301
123	LOG llevError, $msg;	302	LOG llevWarn, $msg;
124	};	303	};
125	}	304
		305	$Coro::State::DIEHOOK = sub {
		306	return unless $^S eq 0; # "eq", not "=="
		307
		308	error Carp::longmess $_[0];
		309
		310	if (in_main) {#d#
		311	error "DIEHOOK called in main context, Coro bug?\n";#d#
		312	return;#d#
		313	}#d#
		314
		315	# kill coroutine otherwise
		316	Coro::terminate
		317	};
126		318
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	319	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	320	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	321	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	322	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	323	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		324	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	325	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		326
134	# we bless all objects into (empty) derived classes to force a method lookup	327	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	328	# within the Safe compartment.
136	for my $pkg (qw(	329	for my $pkg (qw(
137	cf::global cf::attachable	330	cf::global cf::attachable
138	cf::object cf::object::player	331	cf::object cf::object::player
139	cf::client cf::player	332	cf::client cf::player
140	cf::arch cf::living	333	cf::arch cf::living
		334	cf::map cf::mapspace
141	cf::map cf::party cf::region	335	cf::party cf::region
142	)) {	336	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	337	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	338	}
146		339
147	$Event::DIED = sub {	340	$EV::DIED = sub {
148	warn "error in event callback: @_";	341	Carp::cluck "error in event callback: @_";
149	};	342	};
150		343
151	my %ext_pkg;	344	#############################################################################
152	my @exts;	345
153	my @hook;	346	sub fork_call(&@);
		347	sub get_slot($;$$);
		348
		349	#############################################################################
154		350
155	=head2 UTILITY FUNCTIONS	351	=head2 UTILITY FUNCTIONS
156		352
157	=over 4	353	=over 4
158		354
159	=cut	355	=item dumpval $ref
160		356
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	357	=cut
162		358
		359	sub dumpval {
		360	eval {
		361	local $SIG{__DIE__};
		362	my $d;
		363	if (1) {
		364	$d = new Data::Dumper([$_[0]], ["*var"]);
		365	$d->Terse(1);
		366	$d->Indent(2);
		367	$d->Quotekeys(0);
		368	$d->Useqq(1);
		369	#$d->Bless(...);
		370	$d->Seen($_[1]) if @_ > 1;
		371	$d = $d->Dump();
		372	}
		373	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		374	$d
		375	} || "[unable to dump $_[0]: '$@']";
		376	}
		377
		378	=item $scalar = cf::load_file $path
		379
		380	Loads the given file from path and returns its contents. Croaks on error
		381	and can block.
		382
		383	=cut
		384
		385	sub load_file($) {
		386	0 <= aio_load $_[0], my $data
		387	or Carp::croak "$_[0]: $!";
		388
		389	$data
		390	}
		391
		392	=item $success = cf::replace_file $path, $data, $sync
		393
		394	Atomically replaces the file at the given $path with new $data, and
		395	optionally $sync the data to disk before replacing the file.
		396
		397	=cut
		398
		399	sub replace_file($$;$) {
		400	my ($path, $data, $sync) = @_;
		401
		402	my $lock = cf::lock_acquire ("replace_file:$path");
		403
		404	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		405	or return;
		406
		407	$data = $data->() if ref $data;
		408
		409	length $data == aio_write $fh, 0, (length $data), $data, 0
		410	or return;
		411
		412	!$sync
		413	or !aio_fsync $fh
		414	or return;
		415
		416	aio_close $fh
		417	and return;
		418
		419	aio_rename "$path~", $path
		420	and return;
		421
		422	if ($sync) {
		423	$path =~ s%/[^/]*$%%;
		424	aio_pathsync $path;
		425	}
		426
		427	1
		428	}
		429
163	=item $ref = cf::from_json $json	430	=item $ref = cf::decode_json $json
164		431
165	Converts a JSON string into the corresponding perl data structure.	432	Converts a JSON string into the corresponding perl data structure.
166		433
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	434	=item $json = cf::encode_json $ref
175		435
176	Converts a perl data structure into its JSON representation.	436	Converts a perl data structure into its JSON representation.
177		437
178	=cut	438	=cut
179		439
180	sub to_json($) {	440	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	441
182	JSON::Syck::Dump $_[0]	442	sub encode_json($) { $json_coder->encode ($_[0]) }
		443	sub decode_json($) { $json_coder->decode ($_[0]) }
		444
		445	=item $ref = cf::decode_storable $scalar
		446
		447	Same as Coro::Storable::thaw, so blocks.
		448
		449	=cut
		450
		451	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		452
		453	=item $ref = cf::decode_yaml $scalar
		454
		455	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		456
		457	=cut
		458
		459	sub decode_yaml($) {
		460	fork_call { YAML::XS::Load $_[0] } @_
		461	}
		462
		463	=item $scalar = cf::unlzf $scalar
		464
		465	Same as Compress::LZF::compress, but takes server ticks into account, so
		466	blocks.
		467
		468	=cut
		469
		470	sub unlzf($) {
		471	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		472	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		473	Compress::LZF::decompress $_[0]
		474	}
		475
		476	=item cf::post_init { BLOCK }
		477
		478	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		479	but I<before> the server starts ticking again.
		480
		481	The codeblock will have a single boolean argument to indicate whether this
		482	is a reload or not.
		483
		484	=cut
		485
		486	sub post_init(&) {
		487	push @POST_INIT, shift;
		488	}
		489
		490	sub _post_init {
		491	trace "running post_init jobs";
		492
		493	# run them in parallel...
		494
		495	my @join;
		496
		497	while () {
		498	push @join, map &Coro::async ($_, 0), @POST_INIT;
		499	@POST_INIT = ();
		500
		501	@join or last;
		502
		503	(pop @join)->join;
		504	}
183	}	505	}
184		506
185	=item cf::lock_wait $string	507	=item cf::lock_wait $string
186		508
187	Wait until the given lock is available. See cf::lock_acquire.	509	Wait until the given lock is available. See cf::lock_acquire.
188		510
189	=item my $lock = cf::lock_acquire $string	511	=item my $lock = cf::lock_acquire $string
190		512
191	Wait until the given lock is available and then acquires it and returns	513	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	514	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	515	for example when the coroutine gets canceled), the lock is automatically
194	returned.	516	returned.
195		517
		518	Locks are *not* recursive, locking from the same coro twice results in a
		519	deadlocked coro.
		520
196	Lock names should begin with a unique identifier (for example, cf::map::find	521	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	522	uses map_find and cf::map::load uses map_load).
198		523
199	=cut	524	=item $locked = cf::lock_active $string
200		525
201	our %LOCK;	526	Return true if the lock is currently active, i.e. somebody has locked it.
		527
		528	=cut
		529
		530	our $LOCKS = new Coro::SemaphoreSet;
202		531
203	sub lock_wait($) {	532	sub lock_wait($) {
204	my ($key) = @_;	533	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	534	}
212		535
213	sub lock_acquire($) {	536	sub lock_acquire($) {
214	my ($key) = @_;	537	$LOCKS->guard ($_[0])
		538	}
215		539
216	# wait, to be sure we are not locked	540	sub lock_active($) {
217	lock_wait $key;	541	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	542	}
226		543
227	sub freeze_mainloop {	544	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	545	tick_inhibit_inc;
229		546
230	my $guard = Coro::guard { $TICK_WATCHER->start };	547	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	548	}
232	$guard	549
		550	=item cf::periodic $interval, $cb
		551
		552	Like EV::periodic, but randomly selects a starting point so that the actions
		553	get spread over time.
		554
		555	=cut
		556
		557	sub periodic($$) {
		558	my ($interval, $cb) = @_;
		559
		560	my $start = rand List::Util::min 180, $interval;
		561
		562	EV::periodic $start, $interval, 0, $cb
		563	}
		564
		565	=item cf::get_slot $time[, $priority[, $name]]
		566
		567	Allocate $time seconds of blocking CPU time at priority C<$priority>
		568	(default: 0): This call blocks and returns only when you have at least
		569	C<$time> seconds of cpu time till the next tick. The slot is only valid
		570	till the next cede.
		571
		572	Background jobs should use a priority les than zero, interactive jobs
		573	should use 100 or more.
		574
		575	The optional C<$name> can be used to identify the job to run. It might be
		576	used for statistical purposes and should identify the same time-class.
		577
		578	Useful for short background jobs.
		579
		580	=cut
		581
		582	our @SLOT_QUEUE;
		583	our $SLOT_QUEUE;
		584	our $SLOT_DECAY = 0.9;
		585
		586	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		587	$SLOT_QUEUE = Coro::async {
		588	$Coro::current->desc ("timeslot manager");
		589
		590	my $signal = new Coro::Signal;
		591	my $busy;
		592
		593	while () {
		594	next_job:
		595
		596	my $avail = cf::till_tick;
		597
		598	for (0 .. $#SLOT_QUEUE) {
		599	if ($SLOT_QUEUE[$_][0] <= $avail) {
		600	$busy = 0;
		601	my $job = splice @SLOT_QUEUE, $_, 1, ();
		602	$job->[2]->send;
		603	Coro::cede;
		604	goto next_job;
		605	} else {
		606	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		607	}
		608	}
		609
		610	if (@SLOT_QUEUE) {
		611	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		612	$WAIT_FOR_TICK->wait;
		613	} else {
		614	$busy = 0;
		615	Coro::schedule;
		616	}
		617	}
		618	};
		619
		620	sub get_slot($;$$) {
		621	return if tick_inhibit || $Coro::current == $Coro::main;
		622
		623	my ($time, $pri, $name) = @_;
		624
		625	$time = clamp $time, 0.01, $TICK * .6;
		626
		627	my $sig = new Coro::Signal;
		628
		629	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		630	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		631	$SLOT_QUEUE->ready;
		632	$sig->wait;
233	}	633	}
234		634
235	=item cf::async { BLOCK }	635	=item cf::async { BLOCK }
236		636
237	Currently the same as Coro::async_pool, meaning you cannot use	637	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		642
243	BEGIN { *async = \&Coro::async_pool }	643	BEGIN { *async = \&Coro::async_pool }
244		644
245	=item cf::sync_job { BLOCK }	645	=item cf::sync_job { BLOCK }
246		646
247	The design of crossfire+ requires that the main coro ($Coro::main) is	647	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	648	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	649	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		650	acceptable.
250		651
251	If it must be done, put the blocking parts into C<sync_job>. This will run	652	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	653	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	654	server will be frozen during this time, so the block should either finish
254	fast or be very important.	655	fast or be very important.
…		…
256	=cut	657	=cut
257		658
258	sub sync_job(&) {	659	sub sync_job(&) {
259	my ($job) = @_;	660	my ($job) = @_;
260		661
261	if ($Coro::current == $Coro::main) {	662	if (in_main) {
		663	my $time = AE::time;
		664
262	# this is the main coro, too bad, we have to block	665	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	666	# till the operation succeeds, freezing the server :/
264		667
265	# TODO: use suspend/resume instead	668	#LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	669
267	my $freeze_guard = freeze_mainloop;	670	my $freeze_guard = freeze_mainloop;
268		671
269	my $busy = 1;	672	my $busy = 1;
270	my @res;	673	my @res;
271		674
272	(async {	675	(async {
		676	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	677	@res = eval { $job->() };
274	warn $@ if $@;	678	error $@ if $@;
275	undef $busy;	679	undef $busy;
276	})->prio (Coro::PRIO_MAX);	680	})->prio (Coro::PRIO_MAX);
277		681
278	while ($busy) {	682	while ($busy) {
279	Coro::cede or Event::one_event;	683	if (Coro::nready) {
		684	Coro::cede_notself;
		685	} else {
		686	EV::loop EV::LOOP_ONESHOT;
280	}	687	}
		688	}
		689
		690	my $time = AE::time - $time;
		691
		692	$TICK_START += $time; # do not account sync jobs to server load
281		693
282	wantarray ? @res : $res[0]	694	wantarray ? @res : $res[0]
283	} else {	695	} else {
284	# we are in another coroutine, how wonderful, everything just works	696	# we are in another coroutine, how wonderful, everything just works
285		697
…		…
287	}	699	}
288	}	700	}
289		701
290	=item $coro = cf::async_ext { BLOCK }	702	=item $coro = cf::async_ext { BLOCK }
291		703
292	Like async, but this coro is automcatially being canceled when the	704	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	705	extension calling this is being unloaded.
294		706
295	=cut	707	=cut
296		708
297	sub async_ext(&) {	709	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	717	$EXT_CORO{$coro+0} = $coro;
306		718
307	$coro	719	$coro
308	}	720	}
309		721
310	sub write_runtime {	722	=item fork_call { }, @args
311	my $runtime = cf::localdir . "/runtime";
312		723
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	724	Executes the given code block with the given arguments in a seperate
314	or return;	725	process, returning the results. Everything must be serialisable with
		726	Coro::Storable. May, of course, block. Note that the executed sub may
		727	never block itself or use any form of event handling.
315		728
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	729	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		730
320	aio_fsync $fh	731	sub post_fork {
321	and return;	732	reset_signals;
		733	}
322		734
323	close $fh	735	sub fork_call(&@) {
324	or return;	736	my ($cb, @args) = @_;
325		737
326	aio_rename "$runtime~", $runtime	738	# we seemingly have to make a local copy of the whole thing,
327	and return;	739	# otherwise perl prematurely frees the stuff :/
		740	# TODO: investigate and fix (likely this will be rather laborious)
328		741
		742	my @res = Coro::Util::fork_eval {
		743	cf::post_fork;
		744	&$cb
		745	} @args;
		746
		747	wantarray ? @res : $res[-1]
		748	}
		749
		750	sub objinfo {
329	1	751	(
		752	"counter value" => cf::object::object_count,
		753	"objects created" => cf::object::create_count,
		754	"objects destroyed" => cf::object::destroy_count,
		755	"freelist size" => cf::object::free_count,
		756	"allocated objects" => cf::object::objects_size,
		757	"active objects" => cf::object::actives_size,
		758	)
		759	}
		760
		761	=item $coin = coin_from_name $name
		762
		763	=cut
		764
		765	our %coin_alias = (
		766	"silver" => "silvercoin",
		767	"silvercoin" => "silvercoin",
		768	"silvercoins" => "silvercoin",
		769	"gold" => "goldcoin",
		770	"goldcoin" => "goldcoin",
		771	"goldcoins" => "goldcoin",
		772	"platinum" => "platinacoin",
		773	"platinumcoin" => "platinacoin",
		774	"platinumcoins" => "platinacoin",
		775	"platina" => "platinacoin",
		776	"platinacoin" => "platinacoin",
		777	"platinacoins" => "platinacoin",
		778	"royalty" => "royalty",
		779	"royalties" => "royalty",
		780	);
		781
		782	sub coin_from_name($) {
		783	$coin_alias{$_[0]}
		784	? cf::arch::find $coin_alias{$_[0]}
		785	: undef
		786	}
		787
		788	=item $value = cf::db_get $family => $key
		789
		790	Returns a single value from the environment database.
		791
		792	=item cf::db_put $family => $key => $value
		793
		794	Stores the given C<$value> in the family. It can currently store binary
		795	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		796
		797	=item $db = cf::db_table "name"
		798
		799	Create and/or open a new database table. The string must not be "db" and must be unique
		800	within each server.
		801
		802	=cut
		803
		804	sub db_table($) {
		805	cf::error "db_get called from main context"
		806	if $Coro::current == $Coro::main;
		807
		808	my ($name) = @_;
		809	my $db = BDB::db_create $DB_ENV;
		810
		811	eval {
		812	$db->set_flags (BDB::CHKSUM);
		813
		814	utf8::encode $name;
		815	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		816	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		817	cf::cleanup "db_open(db): $!" if $!;
		818	};
		819	cf::cleanup "db_open(db): $@" if $@;
		820
		821	$db
		822	}
		823
		824	our $DB;
		825
		826	sub db_init {
		827	$DB ||= db_table "db";
		828	}
		829
		830	sub db_get($$) {
		831	my $key = "$_[0]/$_[1]";
		832
		833	cf::error "db_get called from main context"
		834	if $Coro::current == $Coro::main;
		835
		836	BDB::db_get $DB, undef, $key, my $data;
		837
		838	$! ? ()
		839	: $data
		840	}
		841
		842	sub db_put($$$) {
		843	BDB::dbreq_pri 4;
		844	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		845	}
		846
		847	=item cf::cache $id => [$paths...], $processversion => $process
		848
		849	Generic caching function that returns the value of the resource $id,
		850	caching and regenerating as required.
		851
		852	This function can block.
		853
		854	=cut
		855
		856	sub cache {
		857	my ($id, $src, $processversion, $process) = @_;
		858
		859	my $meta =
		860	join "\x00",
		861	$processversion,
		862	map {
		863	aio_stat $_
		864	and Carp::croak "$_: $!";
		865
		866	($_, (stat _)[7,9])
		867	} @$src;
		868
		869	my $dbmeta = db_get cache => "$id/meta";
		870	if ($dbmeta ne $meta) {
		871	# changed, we may need to process
		872
		873	my @data;
		874	my $md5;
		875
		876	for (0 .. $#$src) {
		877	$data[$_] = load_file $src->[$_];
		878	}
		879
		880	# if processing is expensive, check
		881	# checksum first
		882	if (1) {
		883	$md5 =
		884	join "\x00",
		885	$processversion,
		886	map {
		887	cf::cede_to_tick;
		888	($src->[$_], Digest::MD5::md5_hex $data[$_])
		889	} 0.. $#$src;
		890
		891
		892	my $dbmd5 = db_get cache => "$id/md5";
		893	if ($dbmd5 eq $md5) {
		894	db_put cache => "$id/meta", $meta;
		895
		896	return db_get cache => "$id/data";
		897	}
		898	}
		899
		900	my $t1 = Time::HiRes::time;
		901	my $data = $process->(\@data);
		902	my $t2 = Time::HiRes::time;
		903
		904	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		905
		906	db_put cache => "$id/data", $data;
		907	db_put cache => "$id/md5" , $md5;
		908	db_put cache => "$id/meta", $meta;
		909
		910	return $data;
		911	}
		912
		913	db_get cache => "$id/data"
		914	}
		915
		916	=item cf::datalog type => key => value, ...
		917
		918	Log a datalog packet of the given type with the given key-value pairs.
		919
		920	=cut
		921
		922	sub datalog($@) {
		923	my ($type, %kv) = @_;
		924	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	925	}
331		926
332	=back	927	=back
333		928
334	=cut	929	=cut
335		930
336	#############################################################################	931	#############################################################################
337		932
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	933	=head2 ATTACHABLE OBJECTS
459		934
460	Many objects in crossfire are so-called attachable objects. That means you can	935	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	936	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	937	to it. All such attachable objects support the following methods.
463		938
464	In the following description, CLASS can be any of C<global>, C<object>	939	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	940	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	941	Deliantra).
467		942
468	=over 4	943	=over 4
469		944
470	=item $attachable->attach ($attachment, key => $value...)	945	=item $attachable->attach ($attachment, key => $value...)
471		946
…		…
515	=item cf::CLASS::attachment $name, ...	990	=item cf::CLASS::attachment $name, ...
516		991
517	Register an attachment by C<$name> through which attachable objects of the	992	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	993	given CLASS can refer to this attachment.
519		994
520	Some classes such as crossfire maps and objects can specify attachments	995	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	996	that are attached at load/instantiate time, thus the need for a name.
522		997
523	These calls expect any number of the following handler/hook descriptions:	998	These calls expect any number of the following handler/hook descriptions:
524		999
525	=over 4	1000	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	1060	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	1061	our @CB_MAP = ();
587		1062
588	my %attachment;	1063	my %attachment;
589		1064
		1065	sub cf::attachable::thawer_merge {
		1066	# simply override everything except _meta
		1067	local $_[0]{_meta};
		1068	%{$_[0]} = %{$_[1]};
		1069	}
		1070
590	sub _attach_cb($$$$) {	1071	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	1072	my ($registry, $event, $prio, $cb) = @_;
592		1073
593	use sort 'stable';	1074	use sort 'stable';
594		1075
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	1109	$registry = $CB_TYPE[$object_type] ||= [];
629		1110
630	} elsif ($type eq "subtype") {	1111	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	1112	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	1113	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1114	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		1115
635	} elsif ($type eq "package") {	1116	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	1117	my $pkg = shift @arg;
637		1118
638	while (my ($name, $id) = each %cb_id) {	1119	while (my ($name, $id) = each %cb_id) {
…		…
643		1124
644	} elsif (exists $cb_id{$type}) {	1125	} elsif (exists $cb_id{$type}) {
645	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1126	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
646		1127
647	} elsif (ref $type) {	1128	} elsif (ref $type) {
648	warn "attaching objects not supported, ignoring.\n";	1129	error "attaching objects not supported, ignoring.\n";
649		1130
650	} else {	1131	} else {
651	shift @arg;	1132	shift @arg;
652	warn "attach argument '$type' not supported, ignoring.\n";	1133	error "attach argument '$type' not supported, ignoring.\n";
653	}	1134	}
654	}	1135	}
655	}	1136	}
656		1137
657	sub _object_attach {	1138	sub _object_attach {
…		…
667	_attach $registry, $klass, @attach;	1148	_attach $registry, $klass, @attach;
668	}	1149	}
669		1150
670	$obj->{$name} = \%arg;	1151	$obj->{$name} = \%arg;
671	} else {	1152	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	1153	info "object uses attachment '$name' which is not available, postponing.\n";
673	}	1154	}
674		1155
675	$obj->{_attachment}{$name} = undef;	1156	$obj->{_attachment}{$name} = undef;
676	}	1157	}
677		1158
…		…
679	if (ref $_[0]) {	1160	if (ref $_[0]) {
680	_object_attach @_;	1161	_object_attach @_;
681	} else {	1162	} else {
682	_attach shift->_attach_registry, @_;	1163	_attach shift->_attach_registry, @_;
683	}	1164	}
		1165	_recalc_want;
684	};	1166	};
685		1167
686	# all those should be optimised	1168	# all those should be optimised
687	sub cf::attachable::detach {	1169	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	1170	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1173	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1174	reattach ($obj);
693	} else {	1175	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1176	Carp::croak "cannot, currently, detach class attachments";
695	}	1177	}
		1178	_recalc_want;
696	};	1179	};
697		1180
698	sub cf::attachable::attached {	1181	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1182	my ($obj, $name) = @_;
700		1183
…		…
715	";	1198	";
716	die if $@;	1199	die if $@;
717	}	1200	}
718		1201
719	our $override;	1202	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1203	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1204
722	sub override {	1205	sub override {
723	$override = 1;	1206	$override = 1;
724	@invoke_results = ();	1207	@INVOKE_RESULTS = (@_);
725	}	1208	}
726		1209
727	sub do_invoke {	1210	sub do_invoke {
728	my $event = shift;	1211	my $event = shift;
729	my $callbacks = shift;	1212	my $callbacks = shift;
730		1213
731	@invoke_results = ();	1214	@INVOKE_RESULTS = ();
732		1215
733	local $override;	1216	local $override;
734		1217
735	for (@$callbacks) {	1218	for (@$callbacks) {
736	eval { &{$_->[1]} };	1219	eval { &{$_->[1]} };
737		1220
738	if ($@) {	1221	if ($@) {
739	warn "$@";
740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1222	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
741	override;	1223	override;
742	}	1224	}
743		1225
744	return 1 if $override;	1226	return 1 if $override;
745	}	1227	}
746		1228
747	0	1229	0
748	}	1230	}
749		1231
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1232	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1233
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1235
754	Generate an object-specific event with the given arguments.	1236	Generate an object-specific event with the given arguments.
755		1237
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1238	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1239	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1240	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1241
760	=back	1242	=back
761		1243
762	=cut	1244	=cut
763		1245
764	#############################################################################	1246	#############################################################################
765	# object support	1247	# object support
		1248
		1249	sub _object_equal($$);
		1250	sub _object_equal($$) {
		1251	my ($a, $b) = @_;
		1252
		1253	return 0 unless (ref $a) eq (ref $b);
		1254
		1255	if ("HASH" eq ref $a) {
		1256	my @ka = keys %$a;
		1257	my @kb = keys %$b;
		1258
		1259	return 0 if @ka != @kb;
		1260
		1261	for (0 .. $#ka) {
		1262	return 0 unless $ka[$_] eq $kb[$_];
		1263	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1264	}
		1265
		1266	} elsif ("ARRAY" eq ref $a) {
		1267
		1268	return 0 if @$a != @$b;
		1269
		1270	for (0 .. $#$a) {
		1271	return 0 unless _object_equal $a->[$_], $b->[$_];
		1272	}
		1273
		1274	} elsif ($a ne $b) {
		1275	return 0;
		1276	}
		1277
		1278	1
		1279	}
		1280
		1281	our $SLOW_MERGES;#d#
		1282	sub _can_merge {
		1283	my ($ob1, $ob2) = @_;
		1284
		1285	++$SLOW_MERGES;#d#
		1286
		1287	# we do the slow way here
		1288	return _object_equal $ob1, $ob2
		1289	}
766		1290
767	sub reattach {	1291	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1292	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1293	my ($obj) = @_;
		1294
		1295	# no longer needed after getting rid of delete_package?
		1296	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1297
771	my $registry = $obj->registry;	1298	my $registry = $obj->registry;
772		1299
773	@$registry = ();	1300	@$registry = ();
774		1301
…		…
779	for (@$attach) {	1306	for (@$attach) {
780	my ($klass, @attach) = @$_;	1307	my ($klass, @attach) = @$_;
781	_attach $registry, $klass, @attach;	1308	_attach $registry, $klass, @attach;
782	}	1309	}
783	} else {	1310	} else {
784	warn "object uses attachment '$name' that is not available, postponing.\n";	1311	info "object uses attachment '$name' that is not available, postponing.\n";
785	}	1312	}
786	}	1313	}
787	}	1314	}
788		1315
789	cf::attachable->attach (	1316	cf::attachable->attach (
790	prio => -1000000,	1317	prio => -1000000,
791	on_instantiate => sub {	1318	on_instantiate => sub {
792	my ($obj, $data) = @_;	1319	my ($obj, $data) = @_;
793		1320
794	$data = from_json $data;	1321	$data = decode_json $data;
795		1322
796	for (@$data) {	1323	for (@$data) {
797	my ($name, $args) = @$_;	1324	my ($name, $args) = @$_;
798		1325
799	$obj->attach ($name, %{$args || {} });	1326	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1342	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1343	my ($filename, $rdata, $objs) = @_;
817		1344
818	sync_job {	1345	sync_job {
819	if (length $$rdata) {	1346	if (length $$rdata) {
		1347	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1348	trace sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1349	$decname, length $$rdata, scalar @$objs
		1350	if $VERBOSE_IO;
822		1351
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1352	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1353	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1354	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1355	if ($cf::USE_FSYNC) {
		1356	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
826	aio_fsync $fh;	1357	aio_fsync $fh;
		1358	}
827	close $fh;	1359	aio_close $fh;
828		1360
829	if (@$objs) {	1361	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1362	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1363	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1364	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1365	aio_write $fh, 0, (length $data), $data, 0;
		1366	if ($cf::USE_FSYNC) {
		1367	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
834	aio_fsync $fh;	1368	aio_fsync $fh;
		1369	}
835	close $fh;	1370	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1371	aio_rename "$filename.pst~", "$filename.pst";
837	}	1372	}
838	} else {	1373	} else {
839	aio_unlink "$filename.pst";	1374	aio_unlink "$filename.pst";
840	}	1375	}
841		1376
842	aio_rename "$filename~", $filename;	1377	aio_rename "$filename~", $filename;
		1378
		1379	$filename =~ s%/[^/]+$%%;
		1380	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1381	} else {
844	warn "FATAL: $filename~: $!\n";	1382	error "unable to save objects: $filename~: $!\n";
845	}	1383	}
846	} else {	1384	} else {
847	aio_unlink $filename;	1385	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1386	aio_unlink "$filename.pst";
849	}	1387	}
850	}	1388	};
851	}	1389	}
852		1390
853	sub object_freezer_as_string {	1391	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1392	my ($rdata, $objs) = @_;
855		1393
…		…
867	or return;	1405	or return;
868		1406
869	unless (aio_stat "$filename.pst") {	1407	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1408	(aio_load "$filename.pst", $av) >= 0
871	or return;	1409	or return;
		1410
872	$av = eval { (Storable::thaw $av)->{objs} };	1411	my $st = eval { Coro::Storable::thaw $av };
		1412	$av = $st->{objs};
873	}	1413	}
874		1414
		1415	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1416	trace sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1417	$decname, length $data, scalar @{$av || []}
		1418	if $VERBOSE_IO;
		1419
877	return ($data, $av);	1420	($data, $av)
878	}	1421	}
		1422
		1423	=head2 COMMAND CALLBACKS
		1424
		1425	=over 4
		1426
		1427	=cut
879		1428
880	#############################################################################	1429	#############################################################################
881	# command handling &c	1430	# command handling &c
882		1431
883	=item cf::register_command $name => \&callback($ob,$args);	1432	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1445	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1446	}
898		1447
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1448	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1449
901	Register a callbackf ro execution when the client sends an extcmd packet.	1450	Register a callback for execution when the client sends an (synchronous)
		1451	extcmd packet. Ext commands will be processed in the order they are
		1452	received by the server, like other user commands. The first argument is
		1453	the logged-in player. Ext commands can only be processed after a player
		1454	has logged in successfully.
902		1455
903	If the callback returns something, it is sent back as if reply was being	1456	If the callback returns something, it is sent back as if reply was being
904	called.	1457	called.
905		1458
		1459	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1460
		1461	Register a callback for execution when the client sends an (asynchronous)
		1462	exticmd packet. Exti commands are processed by the server as soon as they
		1463	are received, i.e. out of order w.r.t. other commands. The first argument
		1464	is a client socket. Exti commands can be received anytime, even before
		1465	log-in.
		1466
		1467	If the callback returns something, it is sent back as if reply was being
		1468	called.
		1469
906	=cut	1470	=cut
907		1471
908	sub register_extcmd {	1472	sub register_extcmd {
909	my ($name, $cb) = @_;	1473	my ($name, $cb) = @_;
910		1474
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1475	$EXTCMD{$name} = $cb;
915	}	1476	}
		1477
		1478	sub register_exticmd {
		1479	my ($name, $cb) = @_;
		1480
		1481	$EXTICMD{$name} = $cb;
		1482	}
		1483
		1484	use File::Glob ();
916		1485
917	cf::player->attach (	1486	cf::player->attach (
918	on_command => sub {	1487	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1488	my ($pl, $name, $params) = @_;
920		1489
921	my $cb = $COMMAND{$name}	1490	my $cb = $COMMAND{$name}
922	or return;	1491	or return;
923		1492
…		…
928	cf::override;	1497	cf::override;
929	},	1498	},
930	on_extcmd => sub {	1499	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1500	my ($pl, $buf) = @_;
932		1501
933	my $msg = eval { from_json $buf };	1502	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1503
935	if (ref $msg) {	1504	if (ref $msg) {
		1505	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1506
		1507	my @reply;
		1508
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1509	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1510	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1511	}
		1512
		1513	$pl->ext_reply ($reply, @reply)
		1514	if $reply;
		1515
941	} else {	1516	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1517	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1518	}
944		1519
945	cf::override;	1520	cf::override;
946	},	1521	},
947	);	1522	);
948		1523
949	sub register {	1524	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1525	sub cache_extensions {
956	my ($path) = @_;	1526	my $grp = IO::AIO::aio_group;
957		1527
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1528	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1529	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1530	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1531	}
1008	}	1532	};
1009		1533
1010	# remove extcmds	1534	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1535	}
1012	delete $EXTCMD{$name};
1013	}
1014		1536
1015	if (my $cb = $pkg->can ("unload")) {	1537	sub _ext_cfg_reg($$$$) {
1016	eval {	1538	my ($rvar, $varname, $cfgname, $default) = @_;
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021		1539
1022	Symbol::delete_package $pkg;	1540	$cfgname = lc $varname
		1541	unless length $cfgname;
		1542
		1543	$EXT_CFG{$cfgname} = [$rvar, $default];
		1544
		1545	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1023	}	1546	}
1024		1547
1025	sub load_extensions {	1548	sub load_extensions {
		1549	info "loading extensions...";
		1550
		1551	%EXT_CFG = ();
		1552
		1553	cf::sync_job {
		1554	my %todo;
		1555
1026	for my $ext (<$LIBDIR/*.ext>) {	1556	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1557	next unless -r $path;
1028	eval {	1558
1029	load_extension $ext;	1559	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1560	my $base = $1;
		1561	my $pkg = $1;
		1562	$pkg =~ s/[^[:word:]]/_/g;
		1563	$pkg = "ext::$pkg";
		1564
		1565	open my $fh, "<:utf8", $path
		1566	or die "$path: $!";
		1567
		1568	my $source = do { local $/; <$fh> };
		1569
		1570	my %ext = (
		1571	path => $path,
		1572	base => $base,
		1573	pkg => $pkg,
		1574	);
		1575
		1576	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1577	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1578
		1579	$ext{source} =
		1580	"package $pkg; use common::sense;\n"
		1581	. "#line 1 \"$path\"\n{\n"
		1582	. $source
		1583	. "\n};\n1";
		1584
		1585	$todo{$base} = \%ext;
		1586	}
		1587
		1588	my $pass = 0;
		1589	my %done;
		1590	while (%todo) {
		1591	my $progress;
		1592
		1593	++$pass;
		1594
		1595	ext:
		1596	while (my ($k, $v) = each %todo) {
		1597	for (split /,\s*/, $v->{meta}{depends}) {
		1598	next ext
		1599	unless exists $done{$_};
		1600	}
		1601
		1602	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1603
		1604	my $source = $v->{source};
		1605
		1606	# support "CONF varname :confname = default" pseudo-statements
		1607	$source =~ s{
		1608	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1609	}{
		1610	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1611	}gmxe;
		1612
		1613	my $active = eval $source;
		1614
		1615	if (length $@) {
		1616	error "$v->{path}: $@\n";
		1617
		1618	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1619	if exists $v->{meta}{mandatory};
		1620
		1621	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1622	delete $todo{$k};
		1623	} else {
		1624	$done{$k} = delete $todo{$k};
		1625	push @EXTS, $v->{pkg};
		1626	$progress = 1;
		1627
		1628	info "$v->{base}: extension inactive.\n"
		1629	unless $active;
		1630	}
1030	1	1631	}
1031	} or warn "$ext not loaded: $@";	1632
		1633	unless ($progress) {
		1634	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1635
		1636	while (my ($k, $v) = each %todo) {
		1637	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1638	if exists $v->{meta}{mandatory};
		1639	}
		1640
		1641	last;
		1642	}
		1643	}
1032	}	1644	};
1033	}	1645	}
1034		1646
1035	#############################################################################	1647	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1648
1038	*cf::mapsupport::on_clean = sub {	1649	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1650
1073	=head2 CORE EXTENSIONS	1651	=head2 CORE EXTENSIONS
1074		1652
1075	Functions and methods that extend core crossfire objects.	1653	Functions and methods that extend core deliantra objects.
1076		1654
1077	=cut	1655	=cut
1078		1656
1079	package cf::player;	1657	package cf::player;
1080		1658
		1659	use Coro::AIO;
		1660
1081	=head3 cf::player	1661	=head3 cf::player
1082		1662
1083	=over 4	1663	=over 4
1084		1664
		1665	=item cf::player::num_playing
		1666
		1667	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1668
		1669	=cut
		1670
		1671	sub num_playing {
		1672	scalar grep
		1673	$_->ob->map
		1674	&& !$_->hidden
		1675	&& !$_->ob->flag (cf::FLAG_WIZ),
		1676	cf::player::list
		1677	}
		1678
1085	=item cf::player::find $login	1679	=item cf::player::find $login
1086		1680
1087	Returns the given player object, loading it if necessary (might block).	1681	Returns the given player object, loading it if necessary (might block).
1088		1682
1089	=cut	1683	=cut
1090		1684
1091	sub playerdir($) {	1685	sub playerdir($) {
1092	cf::localdir	1686	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1687	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1688	}
1098		1689
1099	sub path($) {	1690	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1691	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1692
1102	(playerdir $login) . "/$login.pl"	1693	(playerdir $login) . "/playerdata"
1103	}	1694	}
1104		1695
1105	sub find_active($) {	1696	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1697	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1698	and $cf::PLAYER{$_[0]}->active
…		…
1110		1701
1111	sub exists($) {	1702	sub exists($) {
1112	my ($login) = @_;	1703	my ($login) = @_;
1113		1704
1114	$cf::PLAYER{$login}	1705	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1706	or !aio_stat path $login
1116	}	1707	}
1117		1708
1118	sub find($) {	1709	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1710	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1711	my $login = $_[0];
1121		1712
1122	my $guard = cf::lock_acquire "user_find:$login";	1713	my $guard = cf::lock_acquire "user_find:$login";
1123		1714
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1715	$cf::PLAYER{$_[0]} || do {
		1716	# rename old playerfiles to new ones
		1717	#TODO: remove when no longer required
		1718	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1719	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1720	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1721	aio_unlink +(playerdir $login) . "/$login.pl";
		1722
		1723	my $f = new_from_file cf::object::thawer path $login
		1724	or return;
		1725
		1726	my $pl = cf::player::load_pl $f
		1727	or return;
		1728
		1729	local $cf::PLAYER_LOADING{$login} = $pl;
		1730	$f->resolve_delayed_derefs;
		1731	$cf::PLAYER{$login} = $pl
		1732	}
1125	};	1733	}
1126	}	1734	}
		1735
		1736	cf::player->attach (
		1737	on_load => sub {
		1738	my ($pl, $path) = @_;
		1739
		1740	# restore slots saved in save, below
		1741	my $slots = delete $pl->{_slots};
		1742
		1743	$pl->ob->current_weapon ($slots->[0]);
		1744	$pl->combat_ob ($slots->[1]);
		1745	$pl->ranged_ob ($slots->[2]);
		1746	},
		1747	);
1127		1748
1128	sub save($) {	1749	sub save($) {
1129	my ($pl) = @_;	1750	my ($pl) = @_;
1130		1751
1131	return if $pl->{deny_save};	1752	return if $pl->{deny_save};
…		…
1133	my $path = path $pl;	1754	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1755	my $guard = cf::lock_acquire "user_save:$path";
1135		1756
1136	return if $pl->{deny_save};	1757	return if $pl->{deny_save};
1137		1758
1138	IO::AIO::aio_mkdir playerdir $pl, 0770;	1759	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1760	$pl->{last_save} = $cf::RUNTIME;
1140		1761
1141	Coro::cede;	1762	cf::get_slot 0.01;
		1763
		1764	# save slots, to be restored later
		1765	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1766
1142	$pl->save_pl ($path);	1767	$pl->save_pl ($path);
1143	Coro::cede;	1768	cf::cede_to_tick;
1144	}	1769	}
1145		1770
1146	sub new($) {	1771	sub new($) {
1147	my ($login) = @_;	1772	my ($login) = @_;
1148		1773
…		…
1154	$cf::PLAYER{$login} = $self;	1779	$cf::PLAYER{$login} = $self;
1155		1780
1156	$self	1781	$self
1157	}	1782	}
1158		1783
		1784	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1785
		1786	=cut
		1787
		1788	sub send_msg {
		1789	my $ns = shift->ns
		1790	or return;
		1791	$ns->send_msg (@_);
		1792	}
		1793
		1794	=item $pl->quit_character
		1795
		1796	Nukes the player without looking back. If logged in, the connection will
		1797	be destroyed. May block for a long time.
		1798
		1799	=cut
		1800
1159	sub quit_character {	1801	sub quit_character {
1160	my ($pl) = @_;	1802	my ($pl) = @_;
1161		1803
		1804	my $name = $pl->ob->name;
		1805
1162	$pl->{deny_save} = 1;	1806	$pl->{deny_save} = 1;
1163	$pl->password ("*"); # this should lock out the player until we nuked the dir	1807	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1164		1808
1165	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1809	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1166	$pl->deactivate;	1810	$pl->deactivate;
		1811
		1812	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1167	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1813	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1814	ext::highscore::check ($pl->ob);
		1815
1168	$pl->ns->destroy if $pl->ns;	1816	$pl->ns->destroy if $pl->ns;
1169		1817
1170	my $path = playerdir $pl;	1818	my $path = playerdir $pl;
1171	my $temp = "$path~$cf::RUNTIME~deleting~";	1819	my $temp = "$path~$cf::RUNTIME~deleting~";
1172	IO::AIO::aio_rename $path, $temp, sub {	1820	aio_rename $path, $temp;
1173	delete $cf::PLAYER{$pl->ob->name};	1821	delete $cf::PLAYER{$pl->ob->name};
1174	$pl->destroy;	1822	$pl->destroy;
1175		1823
		1824	my $prefix = qr<^~\Q$name\E/>;
		1825
		1826	# nuke player maps
		1827	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1828
1176	IO::AIO::aio_rmtree $temp;	1829	IO::AIO::aio_rmtree $temp;
		1830	}
		1831
		1832	=item $pl->kick
		1833
		1834	Kicks a player out of the game. This destroys the connection.
		1835
		1836	=cut
		1837
		1838	sub kick {
		1839	my ($pl, $kicker) = @_;
		1840
		1841	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1842	$pl->killer ("kicked");
		1843	$pl->ns->destroy;
		1844	}
		1845
		1846	=item cf::player::list_logins
		1847
		1848	Returns am arrayref of all valid playernames in the system, can take a
		1849	while and may block, so not sync_job-capable, ever.
		1850
		1851	=cut
		1852
		1853	sub list_logins {
		1854	my $dirs = aio_readdir $PLAYERDIR
		1855	or return [];
		1856
		1857	my @logins;
		1858
		1859	for my $login (@$dirs) {
		1860	my $path = path $login;
		1861
		1862	# a .pst is a dead give-away for a valid player
		1863	# if no pst file found, open and chekc for blocked users
		1864	if (aio_stat "$path.pst") {
		1865	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1866	aio_read $fh, 0, 512, my $buf, 0 or next;
		1867	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1868	}
		1869
		1870	utf8::decode $login;
		1871	push @logins, $login;
1177	};	1872	}
1178	}
1179		1873
		1874	\@logins
		1875	}
		1876
		1877	=item $player->maps
		1878
		1879	=item cf::player::maps $login
		1880
		1881	Returns an arrayref of map paths that are private for this
		1882	player. May block.
		1883
		1884	=cut
		1885
		1886	sub maps($) {
		1887	my ($pl) = @_;
		1888
		1889	$pl = ref $pl ? $pl->ob->name : $pl;
		1890
		1891	my $files = aio_readdir playerdir $pl
		1892	or return;
		1893
		1894	my @paths;
		1895
		1896	for (@$files) {
		1897	utf8::decode $_;
		1898	next if /\.(?:pl|pst)$/;
		1899	next unless /^$PATH_SEP/o;
		1900
		1901	push @paths, cf::map::normalise "~$pl/$_";
		1902	}
		1903
		1904	\@paths
		1905	}
		1906
		1907	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1908
		1909	Expand deliantra pod fragments into protocol xml.
		1910
1180	=item $player->ext_reply ($msgid, $msgtype, %msg)	1911	=item $player->ext_reply ($msgid, @msg)
1181		1912
1182	Sends an ext reply to the player.	1913	Sends an ext reply to the player.
1183		1914
1184	=cut	1915	=cut
1185		1916
1186	sub ext_reply($$$%) {	1917	sub ext_reply($$@) {
1187	my ($self, $id, %msg) = @_;	1918	my ($self, $id, @msg) = @_;
1188		1919
1189	$msg{msgid} = $id;	1920	$self->ns->ext_reply ($id, @msg)
1190
1191	$self->send ("ext " . cf::to_json \%msg);
1192	}	1921	}
1193		1922
1194	package cf;	1923	=item $player->ext_msg ($type, @msg)
		1924
		1925	Sends an ext event to the client.
		1926
		1927	=cut
		1928
		1929	sub ext_msg($$@) {
		1930	my ($self, $type, @msg) = @_;
		1931
		1932	$self->ns->ext_msg ($type, @msg);
		1933	}
		1934
		1935	=head3 cf::region
		1936
		1937	=over 4
		1938
		1939	=cut
		1940
		1941	package cf::region;
		1942
		1943	=item cf::region::find_by_path $path
		1944
		1945	Tries to decuce the likely region for a map knowing only its path.
		1946
		1947	=cut
		1948
		1949	sub find_by_path($) {
		1950	my ($path) = @_;
		1951
		1952	$path =~ s/^~[^\/]*//; # skip ~login
		1953
		1954	my ($match, $specificity);
		1955
		1956	for my $region (list) {
		1957	if ($region->{match} && $path =~ $region->{match}) {
		1958	($match, $specificity) = ($region, $region->specificity)
		1959	if $region->specificity > $specificity;
		1960	}
		1961	}
		1962
		1963	$match
		1964	}
1195		1965
1196	=back	1966	=back
1197
1198		1967
1199	=head3 cf::map	1968	=head3 cf::map
1200		1969
1201	=over 4	1970	=over 4
1202		1971
…		…
1205	package cf::map;	1974	package cf::map;
1206		1975
1207	use Fcntl;	1976	use Fcntl;
1208	use Coro::AIO;	1977	use Coro::AIO;
1209		1978
		1979	use overload
		1980	'""' => \&as_string,
		1981	fallback => 1;
		1982
1210	our $MAX_RESET = 3600;	1983	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1984	our $DEFAULT_RESET = 3000;
1212		1985
1213	sub generate_random_map {	1986	sub generate_random_map {
		1987	my ($self, $rmp) = @_;
		1988
		1989	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1990
		1991	$self->_create_random_map ($rmp);
		1992	}
		1993
		1994	=item cf::map->register ($regex, $prio)
		1995
		1996	Register a handler for the map path matching the given regex at the
		1997	givne priority (higher is better, built-in handlers have priority 0, the
		1998	default).
		1999
		2000	=cut
		2001
		2002	sub register {
		2003	my (undef, $regex, $prio) = @_;
		2004	my $pkg = caller;
		2005
		2006	push @{"$pkg\::ISA"}, __PACKAGE__;
		2007
		2008	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2009	}
		2010
		2011	# also paths starting with '/'
		2012	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2013
		2014	sub thawer_merge {
		2015	my ($self, $merge) = @_;
		2016
		2017	# we have to keep some variables in memory intact
		2018	local $self->{path};
		2019	local $self->{load_path};
		2020
		2021	$self->SUPER::thawer_merge ($merge);
		2022	}
		2023
		2024	sub normalise {
1214	my ($path, $rmp) = @_;	2025	my ($path, $base) = @_;
1215		2026
1216	# mit "rum" bekleckern, nicht	2027	$path = "$path"; # make sure it's a string
1217	cf::map::_create_random_map	2028
		2029	$path =~ s/\.map$//;
		2030
		2031	# map plan:
		2032	#
		2033	# /! non-realised random map exit (special hack!)
		2034	# {... are special paths that are not being touched
		2035	# ?xxx/... are special absolute paths
		2036	# ?random/... random maps
		2037	# /... normal maps
		2038	# ~user/... per-player map of a specific user
		2039
		2040	$path =~ s/$PATH_SEP/\//go;
		2041
		2042	# treat it as relative path if it starts with
		2043	# something that looks reasonable
		2044	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2045	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2046
		2047	$base =~ s{[^/]+/?$}{};
		2048	$path = "$base/$path";
		2049	}
		2050
		2051	for ($path) {
		2052	redo if s{/\.?/}{/};
		2053	redo if s{/[^/]+/\.\./}{/};
		2054	}
		2055
1218	$path,	2056	$path
1219	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1220	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1221	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1222	$rmp->{exit_on_final_map},
1223	$rmp->{xsize}, $rmp->{ysize},
1224	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1225	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1226	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1227	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1228	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1229	(cf::region::find $rmp->{region})
1230	}	2057	}
1231		2058
1232	# and all this just because we cannot iterate over	2059	sub new_from_path {
1233	# all maps in C++...	2060	my (undef, $path, $base) = @_;
1234	sub change_all_map_light {	2061
		2062	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2063
		2064	$path = normalise $path, $base;
		2065
		2066	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2067	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2068	my $self = bless cf::map::new, $pkg;
		2069	$self->{path} = $path; $self->path ($path);
		2070	$self->init; # pass $1 etc.
		2071	return $self;
		2072	}
		2073	}
		2074
		2075	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2076	()
		2077	}
		2078
		2079	# may re-bless or do other evil things
		2080	sub init {
1235	my ($change) = @_;	2081	my ($self) = @_;
1236		2082
1237	$_->change_map_light ($change)	2083	$self
1238	for grep $_->outdoor, values %cf::MAP;
1239	}	2084	}
1240		2085
		2086	sub as_string {
		2087	my ($self) = @_;
		2088
		2089	"$self->{path}"
		2090	}
		2091
		2092	# the displayed name, this is a one way mapping
		2093	sub visible_name {
		2094	&as_string
		2095	}
		2096
		2097	# the original (read-only) location
		2098	sub load_path {
		2099	my ($self) = @_;
		2100
		2101	"$MAPDIR/$self->{path}.map"
		2102	}
		2103
		2104	# the temporary/swap location
		2105	sub save_path {
		2106	my ($self) = @_;
		2107
		2108	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2109	"$TMPDIR/$path.map"
		2110	}
		2111
		2112	# the unique path, undef == no special unique path
		2113	sub uniq_path {
		2114	my ($self) = @_;
		2115
		2116	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2117	"$UNIQUEDIR/$path"
		2118	}
		2119
		2120	sub decay_objects {
		2121	my ($self) = @_;
		2122
		2123	return if $self->{deny_reset};
		2124
		2125	$self->do_decay_objects;
		2126	}
		2127
		2128	sub unlink_save {
		2129	my ($self) = @_;
		2130
		2131	utf8::encode (my $save = $self->save_path);
		2132	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2133	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2134	}
		2135
1241	sub try_load_header($) {	2136	sub load_header_from($) {
1242	my ($path) = @_;	2137	my ($self, $path) = @_;
1243		2138
1244	utf8::encode $path;	2139	utf8::encode $path;
1245	aio_open $path, O_RDONLY, 0	2140	my $f = new_from_file cf::object::thawer $path
1246	or return;	2141	or return;
1247		2142
1248	my $map = cf::map::new	2143	$self->_load_header ($f)
1249	or return;	2144	or return;
1250		2145
1251	# for better error messages only, will be overwritten	2146	local $MAP_LOADING{$self->{path}} = $self;
1252	$map->path ($path);	2147	$f->resolve_delayed_derefs;
1253		2148
1254	$map->load_header ($path)	2149	$self->{load_path} = $path;
		2150
		2151	1
		2152	}
		2153
		2154	# used to laod the header of an original map
		2155	sub load_header_orig {
		2156	my ($self) = @_;
		2157
		2158	$self->load_header_from ($self->load_path)
		2159	}
		2160
		2161	# used to laod the header of an instantiated map
		2162	sub load_header_temp {
		2163	my ($self) = @_;
		2164
		2165	$self->load_header_from ($self->save_path)
		2166	}
		2167
		2168	# called after loading the header from an instantiated map
		2169	sub prepare_temp {
		2170	my ($self) = @_;
		2171
		2172	$self->last_access ((delete $self->{last_access})
		2173	|| $cf::RUNTIME); #d#
		2174	# safety
		2175	$self->{instantiate_time} = $cf::RUNTIME
		2176	if $self->{instantiate_time} > $cf::RUNTIME;
		2177	}
		2178
		2179	# called after loading the header from an original map
		2180	sub prepare_orig {
		2181	my ($self) = @_;
		2182
		2183	$self->{load_original} = 1;
		2184	$self->{instantiate_time} = $cf::RUNTIME;
		2185	$self->last_access ($cf::RUNTIME);
		2186	$self->instantiate;
		2187	}
		2188
		2189	sub load_header {
		2190	my ($self) = @_;
		2191
		2192	if ($self->load_header_temp) {
		2193	$self->prepare_temp;
		2194	} else {
		2195	$self->load_header_orig
1255	or return;	2196	or return;
		2197	$self->prepare_orig;
		2198	}
1256		2199
1257	$map->{load_path} = $path;	2200	$self->{deny_reset} = 1
		2201	if $self->no_reset;
1258		2202
1259	$map	2203	$self->default_region (cf::region::find_by_path $self->{path})
		2204	unless $self->default_region;
		2205
		2206	1
1260	}	2207	}
1261		2208
1262	sub find;	2209	sub find;
1263	sub find {	2210	sub find {
1264	my ($path, $origin) = @_;	2211	my ($path, $origin) = @_;
1265		2212
1266	#warn "find<$path,$origin>\n";#d#	2213	cf::cede_to_tick;
1267		2214
1268	$path = new cf::path $path, $origin && $origin->path;	2215	$path = normalise $path, $origin;
1269	my $key = $path->as_string;
1270		2216
1271	cf::lock_wait "map_find:$key";	2217	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1272
1273	$cf::MAP{$key} || do {
1274	my $guard = cf::lock_acquire "map_find:$key";	2218	my $guard2 = cf::lock_acquire "map_find:$path";
1275		2219
1276	# do it the slow way	2220	$cf::MAP{$path} || do {
1277	my $map = try_load_header $path->save_path;	2221	my $map = new_from_path cf::map $path
1278
1279	Coro::cede;
1280
1281	if ($map) {
1282	$map->last_access ((delete $map->{last_access})
1283	|| $cf::RUNTIME); #d#
1284	# safety
1285	$map->{instantiate_time} = $cf::RUNTIME
1286	if $map->{instantiate_time} > $cf::RUNTIME;
1287	} else {
1288	if (my $rmp = $path->random_map_params) {
1289	$map = generate_random_map $key, $rmp;
1290	} else {
1291	$map = try_load_header $path->load_path;
1292	}
1293
1294	$map or return;	2222	or return;
1295		2223
1296	$map->{load_original} = 1;
1297	$map->{instantiate_time} = $cf::RUNTIME;
1298	$map->last_access ($cf::RUNTIME);
1299	$map->instantiate;
1300
1301	# per-player maps become, after loading, normal maps
1302	$map->per_player (0) if $path->{user_rel};
1303	}
1304
1305	$map->path ($key);
1306	$map->{path} = $path;
1307	$map->{last_save} = $cf::RUNTIME;	2224	$map->{last_save} = $cf::RUNTIME;
1308		2225
1309	Coro::cede;	2226	$map->load_header
		2227	or return;
1310		2228
1311	if ($map->should_reset) {	2229	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2230	# doing this can freeze the server in a sync job, obviously
		2231	#$cf::WAIT_FOR_TICK->wait;
		2232	undef $guard2;
		2233	undef $guard1;
1312	$map->reset;	2234	$map->reset;
1313	undef $guard;
1314	$map = find $path	2235	return find $path;
1315	or return;
1316	}	2236	}
1317		2237
1318	$cf::MAP{$key} = $map	2238	$cf::MAP{$path} = $map
1319	}	2239	}
1320	}	2240	}
		2241
		2242	sub pre_load { }
		2243	#sub post_load { } # XS
1321		2244
1322	sub load {	2245	sub load {
1323	my ($self) = @_;	2246	my ($self) = @_;
1324		2247
		2248	local $self->{deny_reset} = 1; # loading can take a long time
		2249
1325	my $path = $self->{path};	2250	my $path = $self->{path};
		2251
		2252	{
1326	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2253	my $guard = cf::lock_acquire "map_data:$path";
1327		2254
1328	return if $self->in_memory != cf::MAP_SWAPPED;	2255	return unless $self->valid;
		2256	return unless $self->state == cf::MAP_SWAPPED;
1329		2257
1330	$self->in_memory (cf::MAP_LOADING);
1331
1332	$self->alloc;	2258	$self->alloc;
1333	$self->load_objects ($self->{load_path}, 1)	2259
		2260	$self->pre_load;
		2261	cf::cede_to_tick;
		2262
		2263	if (exists $self->{load_path}) {
		2264	my $f = new_from_file cf::object::thawer $self->{load_path};
		2265	$f->skip_block;
		2266	$self->_load_objects ($f)
1334	or return;	2267	or return;
1335		2268
1336	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2269	$self->post_load_original
1337	if delete $self->{load_original};	2270	if delete $self->{load_original};
1338		2271
1339	if (my $uniq = $path->uniq_path) {	2272	if (my $uniq = $self->uniq_path) {
1340	utf8::encode $uniq;	2273	utf8::encode $uniq;
1341	if (aio_open $uniq, O_RDONLY, 0) {	2274	unless (aio_stat $uniq) {
		2275	if (my $f = new_from_file cf::object::thawer $uniq) {
1342	$self->clear_unique_items;	2276	$self->clear_unique_items;
1343	$self->load_objects ($uniq, 0);	2277	$self->_load_objects ($f);
		2278	$f->resolve_delayed_derefs;
		2279	}
		2280	}
1344	}	2281	}
1345	}
1346		2282
1347	Coro::cede;	2283	$f->resolve_delayed_derefs;
		2284	} else {
		2285	$self->post_load_original
		2286	if delete $self->{load_original};
		2287	}
1348		2288
		2289	$self->state (cf::MAP_INACTIVE);
		2290
		2291	cf::cede_to_tick;
1349	# now do the right thing for maps	2292	# now do the right thing for maps
1350	$self->link_multipart_objects;	2293	$self->link_multipart_objects;
1351
1352	if ($self->{path}->is_style_map) {
1353	$self->{deny_save} = 1;
1354	$self->{deny_reset} = 1;
1355	} else {
1356	$self->fix_auto_apply;
1357	$self->decay_objects;
1358	$self->update_buttons;
1359	$self->set_darkness_map;
1360	$self->difficulty ($self->estimate_difficulty)	2294	$self->difficulty ($self->estimate_difficulty)
1361	unless $self->difficulty;	2295	unless $self->difficulty;
1362	$self->activate;	2296	cf::cede_to_tick;
		2297
		2298	unless ($self->{deny_activate}) {
		2299	$self->decay_objects;
		2300	$self->fix_auto_apply;
		2301	$self->update_buttons;
		2302	cf::cede_to_tick;
		2303	#$self->activate; # no longer activate maps automatically
		2304	}
		2305
		2306	$self->{last_save} = $cf::RUNTIME;
		2307	$self->last_access ($cf::RUNTIME);
		2308	}
		2309
		2310	$self->post_load;
		2311
1363	}	2312	1
		2313	}
1364		2314
1365	Coro::cede;	2315	# customize the map for a given player, i.e.
		2316	# return the _real_ map. used by e.g. per-player
		2317	# maps to change the path to ~playername/mappath
		2318	sub customise_for {
		2319	my ($self, $ob) = @_;
1366		2320
1367	$self->in_memory (cf::MAP_IN_MEMORY);	2321	return find "~" . $ob->name . "/" . $self->{path}
		2322	if $self->per_player;
		2323
		2324	# return find "?party/" . $ob->name . "/" . $self->{path}
		2325	# if $self->per_party;
		2326
		2327	$self
1368	}	2328	}
1369		2329
1370	sub find_sync {	2330	sub find_sync {
1371	my ($path, $origin) = @_;	2331	my ($path, $origin) = @_;
1372		2332
1373	cf::sync_job { cf::map::find $path, $origin }	2333	# it's a bug to call this from the main context
		2334	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2335	if $Coro::current == $Coro::main;
		2336
		2337	find $path, $origin
1374	}	2338	}
1375		2339
1376	sub do_load_sync {	2340	sub do_load_sync {
1377	my ($map) = @_;	2341	my ($map) = @_;
1378		2342
1379	cf::sync_job { $map->load };	2343	# it's a bug to call this from the main context
		2344	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2345	if $Coro::current == $Coro::main;
		2346
		2347	$map->load;
		2348	}
		2349
		2350	our %MAP_PREFETCH;
		2351	our $MAP_PREFETCHER = undef;
		2352
		2353	sub find_async {
		2354	my ($path, $origin, $load) = @_;
		2355
		2356	$path = normalise $path, $origin;
		2357
		2358	if (my $map = $cf::MAP{$path}) {
		2359	return $map if !$load || $map->linkable;
		2360	}
		2361
		2362	$MAP_PREFETCH{$path} |= $load;
		2363
		2364	$MAP_PREFETCHER ||= cf::async {
		2365	$Coro::current->{desc} = "map prefetcher";
		2366
		2367	while (%MAP_PREFETCH) {
		2368	while (my ($k, $v) = each %MAP_PREFETCH) {
		2369	if (my $map = find $k) {
		2370	$map->load if $v;
		2371	}
		2372
		2373	delete $MAP_PREFETCH{$k};
		2374	}
		2375	}
		2376	undef $MAP_PREFETCHER;
		2377	};
		2378	$MAP_PREFETCHER->prio (6);
		2379
		2380	()
		2381	}
		2382
		2383	# common code, used by both ->save and ->swapout
		2384	sub _save {
		2385	my ($self) = @_;
		2386
		2387	$self->{last_save} = $cf::RUNTIME;
		2388
		2389	return unless $self->dirty;
		2390
		2391	my $save = $self->save_path; utf8::encode $save;
		2392	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2393
		2394	$self->{load_path} = $save;
		2395
		2396	return if $self->{deny_save};
		2397
		2398	local $self->{last_access} = $self->last_access;#d#
		2399
		2400	cf::async {
		2401	$Coro::current->{desc} = "map player save";
		2402	$_->contr->save for $self->players;
		2403	};
		2404
		2405	cf::get_slot 0.02;
		2406
		2407	if ($uniq) {
		2408	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2409	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2410	} else {
		2411	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2412	}
1380	}	2413	}
1381		2414
1382	sub save {	2415	sub save {
1383	my ($self) = @_;	2416	my ($self) = @_;
1384		2417
1385	my $lock = cf::lock_acquire "map_data:" . $self->path;	2418	my $lock = cf::lock_acquire "map_data:$self->{path}";
1386		2419
1387	$self->{last_save} = $cf::RUNTIME;	2420	$self->_save;
1388
1389	return unless $self->dirty;
1390
1391	my $save = $self->{path}->save_path; utf8::encode $save;
1392	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1393
1394	$self->{load_path} = $save;
1395
1396	return if $self->{deny_save};
1397
1398	local $self->{last_access} = $self->last_access;#d#
1399
1400	cf::async {
1401	$_->contr->save for $self->players;
1402	};
1403
1404	if ($uniq) {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1406	$self->save_objects ($uniq, cf::IO_UNIQUES);
1407	} else {
1408	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1409	}
1410	}	2421	}
1411		2422
1412	sub swap_out {	2423	sub swap_out {
1413	my ($self) = @_;	2424	my ($self) = @_;
1414		2425
1415	# save first because save cedes
1416	$self->save;
1417
1418	my $lock = cf::lock_acquire "map_data:" . $self->path;	2426	my $lock = cf::lock_acquire "map_data:$self->{path}";
1419		2427
		2428	return if !$self->linkable;
		2429	return if $self->{deny_save};
1420	return if $self->players;	2430	return if $self->players;
1421	return if $self->in_memory != cf::MAP_IN_MEMORY;
1422	return if $self->{deny_save};
1423		2431
		2432	# first deactivate the map and "unlink" it from the core
		2433	$self->deactivate;
		2434	$_->clear_links_to ($self) for values %cf::MAP;
		2435	$self->state (cf::MAP_SWAPPED);
		2436
		2437	# then atomically save
		2438	$self->_save;
		2439
		2440	# then free the map
1424	$self->clear;	2441	$self->clear;
1425	$self->in_memory (cf::MAP_SWAPPED);
1426	}	2442	}
1427		2443
1428	sub reset_at {	2444	sub reset_at {
1429	my ($self) = @_;	2445	my ($self) = @_;
1430		2446
1431	# TODO: safety, remove and allow resettable per-player maps	2447	# TODO: safety, remove and allow resettable per-player maps
1432	return 1e99 if $self->{path}{user_rel};
1433	return 1e99 if $self->{deny_reset};	2448	return 1e99 if $self->{deny_reset};
1434		2449
1435	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2450	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1436	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2451	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1437		2452
…		…
1442	my ($self) = @_;	2457	my ($self) = @_;
1443		2458
1444	$self->reset_at <= $cf::RUNTIME	2459	$self->reset_at <= $cf::RUNTIME
1445	}	2460	}
1446		2461
1447	sub unlink_save {
1448	my ($self) = @_;
1449
1450	utf8::encode (my $save = $self->{path}->save_path);
1451	aioreq_pri 3; IO::AIO::aio_unlink $save;
1452	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1453	}
1454
1455	sub rename {
1456	my ($self, $new_path) = @_;
1457
1458	$self->unlink_save;
1459
1460	delete $cf::MAP{$self->path};
1461	$self->{path} = new cf::path $new_path;
1462	$self->path ($self->{path}->as_string);
1463	$cf::MAP{$self->path} = $self;
1464
1465	$self->save;
1466	}
1467
1468	sub reset {	2462	sub reset {
1469	my ($self) = @_;	2463	my ($self) = @_;
1470		2464
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2465	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2466
1473	return if $self->players;	2467	return if $self->players;
1474	return if $self->{path}{user_rel};#d#
1475		2468
1476	warn "resetting map ", $self->path;#d#	2469	cf::trace "resetting map ", $self->path, "\n";
		2470
		2471	$self->state (cf::MAP_SWAPPED);
		2472
		2473	# need to save uniques path
		2474	unless ($self->{deny_save}) {
		2475	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2476
		2477	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2478	if $uniq;
		2479	}
1477		2480
1478	delete $cf::MAP{$self->path};	2481	delete $cf::MAP{$self->path};
1479		2482
		2483	$self->deactivate;
1480	$_->clear_links_to ($self) for values %cf::MAP;	2484	$_->clear_links_to ($self) for values %cf::MAP;
		2485	$self->clear;
1481		2486
1482	$self->unlink_save;	2487	$self->unlink_save;
1483	$self->destroy;	2488	$self->destroy;
1484	}	2489	}
1485		2490
1486	my $nuke_counter = "aaaa";	2491	my $nuke_counter = "aaaa";
1487		2492
1488	sub nuke {	2493	sub nuke {
1489	my ($self) = @_;	2494	my ($self) = @_;
1490		2495
		2496	{
		2497	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2498
		2499	delete $cf::MAP{$self->path};
		2500
		2501	$self->unlink_save;
		2502
		2503	bless $self, "cf::map::wrap";
		2504	delete $self->{deny_reset};
1491	$self->{deny_save} = 1;	2505	$self->{deny_save} = 1;
1492	$self->reset_timeout (1);	2506	$self->reset_timeout (1);
1493	$self->rename ("{nuke}/" . ($nuke_counter++));	2507	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2508
		2509	$cf::MAP{$self->path} = $self;
		2510	}
		2511
1494	$self->reset; # polite request, might not happen	2512	$self->reset; # polite request, might not happen
1495	}	2513	}
1496		2514
1497	sub customise_for {	2515	=item $maps = cf::map::tmp_maps
1498	my ($map, $ob) = @_;
1499		2516
1500	if ($map->per_player) {	2517	Returns an arrayref with all map paths of currently instantiated and saved
1501	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2518	maps. May block.
		2519
		2520	=cut
		2521
		2522	sub tmp_maps() {
1502	}	2523	[
1503		2524	map {
1504	$map	2525	utf8::decode $_;
		2526	/\.map$/
		2527	? normalise $_
		2528	: ()
		2529	} @{ aio_readdir $TMPDIR or [] }
		2530	]
1505	}	2531	}
1506		2532
1507	sub emergency_save {	2533	=item $maps = cf::map::random_maps
1508	my $freeze_guard = cf::freeze_mainloop;
1509		2534
1510	warn "enter emergency perl save\n";	2535	Returns an arrayref with all map paths of currently instantiated and saved
		2536	random maps. May block.
1511		2537
1512	cf::sync_job {	2538	=cut
1513	warn "begin emergency player save\n";
1514	$_->save for values %cf::PLAYER;
1515	warn "end emergency player save\n";
1516		2539
1517	warn "begin emergency map save\n";	2540	sub random_maps() {
1518	$_->save for values %cf::MAP;	2541	[
1519	warn "end emergency map save\n";	2542	map {
		2543	utf8::decode $_;
		2544	/\.map$/
		2545	? normalise "?random/$_"
		2546	: ()
		2547	} @{ aio_readdir $RANDOMDIR or [] }
		2548	]
		2549	}
		2550
		2551	=item cf::map::unique_maps
		2552
		2553	Returns an arrayref of paths of all shared maps that have
		2554	instantiated unique items. May block.
		2555
		2556	=cut
		2557
		2558	sub unique_maps() {
		2559	[
		2560	map {
		2561	utf8::decode $_;
		2562	s/\.map$//; # TODO future compatibility hack
		2563	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2564	? ()
		2565	: normalise $_
		2566	} @{ aio_readdir $UNIQUEDIR or [] }
		2567	]
		2568	}
		2569
		2570	=item cf::map::static_maps
		2571
		2572	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2573	file in the shared directory excluding F</styles> and F</editor>). May
		2574	block.
		2575
		2576	=cut
		2577
		2578	sub static_maps() {
		2579	my @dirs = "";
		2580	my @maps;
		2581
		2582	while (@dirs) {
		2583	my $dir = shift @dirs;
		2584
		2585	next if $dir eq "/styles" || $dir eq "/editor";
		2586
		2587	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2588	or return;
		2589
		2590	for (@$files) {
		2591	s/\.map$// or next;
		2592	utf8::decode $_;
		2593	push @maps, "$dir/$_";
		2594	}
		2595
		2596	push @dirs, map "$dir/$_", @$dirs;
1520	};	2597	}
1521		2598
1522	warn "leave emergency perl save\n";	2599	\@maps
		2600	}
		2601
		2602	=back
		2603
		2604	=head3 cf::object
		2605
		2606	=cut
		2607
		2608	package cf::object;
		2609
		2610	=over 4
		2611
		2612	=item $ob->inv_recursive
		2613
		2614	Returns the inventory of the object I<and> their inventories, recursively,
		2615	but I<not> the object itself.
		2616
		2617	=cut
		2618
		2619	sub inv_recursive_;
		2620	sub inv_recursive_ {
		2621	map { $_, inv_recursive_ $_->inv } @_
		2622	}
		2623
		2624	sub inv_recursive {
		2625	inv_recursive_ inv $_[0]
		2626	}
		2627
		2628	=item $ref = $ob->ref
		2629
		2630	Creates and returns a persistent reference to an object that can be stored as a string.
		2631
		2632	=item $ob = cf::object::deref ($refstring)
		2633
		2634	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2635	even if the object actually exists. May block.
		2636
		2637	=cut
		2638
		2639	sub deref {
		2640	my ($ref) = @_;
		2641
		2642	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2643	my ($uuid, $name) = ($1, $2);
		2644	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2645	or return;
		2646	$pl->ob->uuid eq $uuid
		2647	or return;
		2648
		2649	$pl->ob
		2650	} else {
		2651	warn "$ref: cannot resolve object reference\n";
		2652	undef
		2653	}
1523	}	2654	}
1524		2655
1525	package cf;	2656	package cf;
1526		2657
1527	=back	2658	=back
1528
1529		2659
1530	=head3 cf::object::player	2660	=head3 cf::object::player
1531		2661
1532	=over 4	2662	=over 4
1533		2663
…		…
1536	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2666	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1537	can be C<undef>. Does the right thing when the player is currently in a	2667	can be C<undef>. Does the right thing when the player is currently in a
1538	dialogue with the given NPC character.	2668	dialogue with the given NPC character.
1539		2669
1540	=cut	2670	=cut
		2671
		2672	our $SAY_CHANNEL = {
		2673	id => "say",
		2674	title => "Map",
		2675	reply => "say ",
		2676	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2677	};
		2678
		2679	our $CHAT_CHANNEL = {
		2680	id => "chat",
		2681	title => "Chat",
		2682	reply => "chat ",
		2683	tooltip => "Player chat and shouts, global to the server.",
		2684	};
1541		2685
1542	# rough implementation of a future "reply" method that works	2686	# rough implementation of a future "reply" method that works
1543	# with dialog boxes.	2687	# with dialog boxes.
1544	#TODO: the first argument must go, split into a $npc->reply_to ( method	2688	#TODO: the first argument must go, split into a $npc->reply_to ( method
1545	sub cf::object::player::reply($$$;$) {	2689	sub cf::object::player::reply($$$;$) {
…		…
1547		2691
1548	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2692	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1549		2693
1550	if ($self->{record_replies}) {	2694	if ($self->{record_replies}) {
1551	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2695	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2696
1552	} else {	2697	} else {
		2698	my $pl = $self->contr;
		2699
		2700	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2701	my $dialog = $pl->{npc_dialog};
		2702	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2703
		2704	} else {
1553	$msg = $npc->name . " says: $msg" if $npc;	2705	$msg = $npc->name . " says: $msg" if $npc;
1554	$self->message ($msg, $flags);	2706	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2707	}
1555	}	2708	}
		2709	}
		2710
		2711	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2712
		2713	=cut
		2714
		2715	sub cf::object::send_msg {
		2716	my $pl = shift->contr
		2717	or return;
		2718	$pl->send_msg (@_);
1556	}	2719	}
1557		2720
1558	=item $player_object->may ("access")	2721	=item $player_object->may ("access")
1559		2722
1560	Returns wether the given player is authorized to access resource "access"	2723	Returns wether the given player is authorized to access resource "access"
…		…
1573		2736
1574	=item $player_object->enter_link	2737	=item $player_object->enter_link
1575		2738
1576	Freezes the player and moves him/her to a special map (C<{link}>).	2739	Freezes the player and moves him/her to a special map (C<{link}>).
1577		2740
1578	The player should be reaosnably safe there for short amounts of time. You	2741	The player should be reasonably safe there for short amounts of time (e.g.
1579	I<MUST> call C<leave_link> as soon as possible, though.	2742	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2743	though, as the player cannot control the character while it is on the link
		2744	map.
		2745
		2746	Will never block.
1580		2747
1581	=item $player_object->leave_link ($map, $x, $y)	2748	=item $player_object->leave_link ($map, $x, $y)
1582		2749
1583	Moves the player out of the specila link map onto the given map. If the	2750	Moves the player out of the special C<{link}> map onto the specified
1584	map is not valid (or omitted), the player will be moved back to the	2751	map. If the map is not valid (or omitted), the player will be moved back
1585	location he/she was before the call to C<enter_link>, or, if that fails,	2752	to the location he/she was before the call to C<enter_link>, or, if that
1586	to the emergency map position.	2753	fails, to the emergency map position.
1587		2754
1588	Might block.	2755	Might block.
1589		2756
1590	=cut	2757	=cut
		2758
		2759	sub link_map {
		2760	unless ($LINK_MAP) {
		2761	$LINK_MAP = cf::map::find "{link}"
		2762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2763	$LINK_MAP->load;
		2764	}
		2765
		2766	$LINK_MAP
		2767	}
1591		2768
1592	sub cf::object::player::enter_link {	2769	sub cf::object::player::enter_link {
1593	my ($self) = @_;	2770	my ($self) = @_;
1594		2771
1595	$self->deactivate_recursive;	2772	$self->deactivate_recursive;
1596		2773
1597	return if $self->map == $LINK_MAP;	2774	++$self->{_link_recursion};
		2775
		2776	return if UNIVERSAL::isa $self->map, "ext::map_link";
1598		2777
1599	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1600	if $self->map;	2779	if $self->map && $self->map->{path} ne "{link}";
1601		2780
1602	$self->enter_map ($LINK_MAP, 20, 20);	2781	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1603	}	2782	}
1604		2783
1605	sub cf::object::player::leave_link {	2784	sub cf::object::player::leave_link {
1606	my ($self, $map, $x, $y) = @_;	2785	my ($self, $map, $x, $y) = @_;
		2786
		2787	return unless $self->contr->active;
1607		2788
1608	my $link_pos = delete $self->{_link_pos};	2789	my $link_pos = delete $self->{_link_pos};
1609		2790
1610	unless ($map) {	2791	unless ($map) {
1611	# restore original map position	2792	# restore original map position
…		…
1622	($x, $y) = (-1, -1)	2803	($x, $y) = (-1, -1)
1623	unless (defined $x) && (defined $y);	2804	unless (defined $x) && (defined $y);
1624		2805
1625	# use -1 or undef as default coordinates, not 0, 0	2806	# use -1 or undef as default coordinates, not 0, 0
1626	($x, $y) = ($map->enter_x, $map->enter_y)	2807	($x, $y) = ($map->enter_x, $map->enter_y)
1627	if $x <=0 && $y <= 0;	2808	if $x <= 0 && $y <= 0;
1628		2809
1629	$map->load;	2810	$map->load;
1630		2811
1631	return unless $self->contr->active;	2812	return unless $self->contr->active;
		2813
		2814	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2815	if ($self->enter_map ($map, $x, $y)) {
		2816	# entering was successful
		2817	delete $self->{_link_recursion};
		2818	# only activate afterwards, to support waiting in hooks
1632	$self->activate_recursive;	2819	$self->activate_recursive;
1633	$self->enter_map ($map, $x, $y);
1634	}
1635
1636	cf::player->attach (
1637	on_logout => sub {
1638	my ($pl) = @_;
1639
1640	# abort map switching before logout
1641	if ($pl->ob->{_link_pos}) {
1642	cf::sync_job {
1643	$pl->ob->leave_link
1644	};
1645	}
1646	},	2820	}
1647	on_login => sub {
1648	my ($pl) = @_;
1649		2821
1650	# try to abort aborted map switching on player login :)	2822	}
1651	# should happen only on crashes
1652	if ($pl->ob->{_link_pos}) {
1653	$pl->ob->enter_link;
1654	(async {
1655	# we need this sleep as the login has a concurrent enter_exit running
1656	# and this sleep increases chances of the player not ending up in scorn
1657	$pl->ob->reply (undef,
1658	"There was an internal problem at your last logout, "
1659	. "the server will try to bring you to your intended destination in a second.",
1660	cf::NDI_RED);
1661	Coro::Timer::sleep 1;
1662	$pl->ob->leave_link;
1663	})->prio (2);
1664	}
1665	},
1666	);
1667		2823
1668	=item $player_object->goto ($path, $x, $y)	2824	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1669		2825
		2826	Moves the player to the given map-path and coordinates by first freezing
		2827	her, loading and preparing them map, calling the provided $check callback
		2828	that has to return the map if sucecssful, and then unfreezes the player on
		2829	the new (success) or old (failed) map position. In either case, $done will
		2830	be called at the end of this process.
		2831
		2832	Note that $check will be called with a potentially non-loaded map, so if
		2833	it needs a loaded map it has to call C<< ->load >>.
		2834
1670	=cut	2835	=cut
		2836
		2837	our $GOTOGEN;
1671		2838
1672	sub cf::object::player::goto {	2839	sub cf::object::player::goto {
1673	my ($self, $path, $x, $y) = @_;	2840	my ($self, $path, $x, $y, $check, $done) = @_;
		2841
		2842	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2843	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2844	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2845	($path, $x, $y) = @$EMERGENCY_POSITION;
		2846	}
		2847
		2848	# do generation counting so two concurrent goto's will be executed in-order
		2849	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1674		2850
1675	$self->enter_link;	2851	$self->enter_link;
1676		2852
1677	(async {	2853	(async {
1678	$path = new cf::path $path;	2854	$Coro::current->{desc} = "player::goto $path $x $y";
1679		2855
1680	my $map = cf::map::find $path->as_string;	2856	# *tag paths override both path and x|y
		2857	if ($path =~ /^\*(.*)$/) {
		2858	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2859	my $ob = $obs[rand @obs];
		2860
		2861	# see if we actually can go there
		2862	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2863	$ob = $obs[rand @obs];
		2864	} else {
		2865	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2866	}
		2867	# else put us there anyways for now #d#
		2868
		2869	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2870	} else {
		2871	($path, $x, $y) = (undef, undef, undef);
		2872	}
		2873	}
		2874
		2875	my $map = eval {
		2876	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2877
		2878	if ($map) {
1681	$map = $map->customise_for ($self) if $map;	2879	$map = $map->customise_for ($self);
1682		2880	$map = $check->($map, $x, $y, $self) if $check && $map;
1683	# warn "entering ", $map->path, " at ($x, $y)\n"	2881	} else {
1684	# if $map;
1685
1686	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2882	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2883	}
1687		2884
		2885	$map
		2886	};
		2887
		2888	if ($@) {
		2889	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2890	LOG llevError | logBacktrace, Carp::longmess $@;
		2891	}
		2892
		2893	if ($gen == $self->{_goto_generation}) {
		2894	delete $self->{_goto_generation};
1688	$self->leave_link ($map, $x, $y);	2895	$self->leave_link ($map, $x, $y);
		2896	}
		2897
		2898	$done->($self) if $done;
1689	})->prio (1);	2899	})->prio (1);
1690	}	2900	}
1691		2901
1692	=item $player_object->enter_exit ($exit_object)	2902	=item $player_object->enter_exit ($exit_object)
1693		2903
…		…
1695		2905
1696	sub parse_random_map_params {	2906	sub parse_random_map_params {
1697	my ($spec) = @_;	2907	my ($spec) = @_;
1698		2908
1699	my $rmp = { # defaults	2909	my $rmp = { # defaults
1700	xsize => 10,	2910	xsize => (cf::rndm 15, 40),
1701	ysize => 10,	2911	ysize => (cf::rndm 15, 40),
		2912	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2913	#layout => string,
1702	};	2914	};
1703		2915
1704	for (split /\n/, $spec) {	2916	for (split /\n/, $spec) {
1705	my ($k, $v) = split /\s+/, $_, 2;	2917	my ($k, $v) = split /\s+/, $_, 2;
1706		2918
…		…
1718	# that depends on the exit object	2930	# that depends on the exit object
1719		2931
1720	my $rmp = parse_random_map_params $exit->msg;	2932	my $rmp = parse_random_map_params $exit->msg;
1721		2933
1722	if ($exit->map) {	2934	if ($exit->map) {
1723	$rmp->{region} = $exit->map->region_name;	2935	$rmp->{region} = $exit->region->name;
1724	$rmp->{origin_map} = $exit->map->path;	2936	$rmp->{origin_map} = $exit->map->path;
1725	$rmp->{origin_x} = $exit->x;	2937	$rmp->{origin_x} = $exit->x;
1726	$rmp->{origin_y} = $exit->y;	2938	$rmp->{origin_y} = $exit->y;
		2939
		2940	$exit->map->touch;
1727	}	2941	}
1728		2942
1729	$rmp->{random_seed} ||= $exit->random_seed;	2943	$rmp->{random_seed} ||= $exit->random_seed;
1730		2944
1731	my $data = cf::to_json $rmp;	2945	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1732	my $md5 = Digest::MD5::md5_hex $data;	2946	my $md5 = Digest::MD5::md5_hex $data;
		2947	my $meta = "$RANDOMDIR/$md5.meta";
1733		2948
1734	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2949	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1735	aio_write $fh, 0, (length $data), $data, 0;	2950	aio_write $fh, 0, (length $data), $data, 0;
		2951	undef $fh;
		2952	aio_rename "$meta~", $meta;
1736		2953
		2954	my $slaying = "?random/$md5";
		2955
		2956	if ($exit->valid) {
1737	$exit->slaying ("?random/$md5");	2957	$exit->slaying ("?random/$md5");
1738	$exit->msg (undef);	2958	$exit->msg (undef);
		2959	}
1739	}	2960	}
1740	}	2961	}
1741		2962
1742	sub cf::object::player::enter_exit {	2963	sub cf::object::player::enter_exit {
1743	my ($self, $exit) = @_;	2964	my ($self, $exit) = @_;
…		…
1745	return unless $self->type == cf::PLAYER;	2966	return unless $self->type == cf::PLAYER;
1746		2967
1747	$self->enter_link;	2968	$self->enter_link;
1748		2969
1749	(async {	2970	(async {
1750	$self->deactivate_recursive; # just to be sure	2971	$Coro::current->{desc} = "enter_exit";
		2972
1751	unless (eval {	2973	unless (eval {
		2974	$self->deactivate_recursive; # just to be sure
		2975
		2976	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2977	my $x = $exit->stats->hp;
		2978	my $y = $exit->stats->sp;
		2979
		2980	# special map handling
		2981	my $slaying = $exit->slaying;
		2982
		2983	# special map handling
		2984	if ($slaying eq "/!") {
		2985	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2986
1752	prepare_random_map $exit	2987	prepare_random_map $exit
		2988	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2989
1753	if $exit->slaying eq "/!";	2990	$map = $exit->slaying;
1754		2991
1755	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2992	} elsif ($slaying eq '!up') {
1756	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2993	$map = $exit->map->tile_path (cf::TILE_UP);
		2994	$x = $exit->x;
		2995	$y = $exit->y;
1757		2996
		2997	} elsif ($slaying eq '!down') {
		2998	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2999	$x = $exit->x;
		3000	$y = $exit->y;
		3001	}
		3002
		3003	$self->goto ($map, $x, $y);
		3004
		3005	# if exit is damned, update players death & WoR home-position
		3006	$self->contr->savebed ($map, $x, $y)
		3007	if $exit->flag (cf::FLAG_DAMNED);
		3008
1758	1;	3009	1
1759	}) {	3010	}) {
1760	$self->message ("Something went wrong deep within the crossfire server. "	3011	$self->message ("Something went wrong deep within the deliantra server. "
1761	. "I'll try to bring you back to the map you were before. "	3012	. "I'll try to bring you back to the map you were before. "
1762	. "Please report this to the dungeon master",	3013	. "Please report this to the dungeon master!",
1763	cf::NDI_UNIQUE | cf::NDI_RED);	3014	cf::NDI_UNIQUE | cf::NDI_RED);
1764		3015
1765	warn "ERROR in enter_exit: $@";	3016	error "ERROR in enter_exit: $@";
1766	$self->leave_link;	3017	$self->leave_link;
1767	}	3018	}
1768	})->prio (1);	3019	})->prio (1);
1769	}	3020	}
1770		3021
…		…
1781		3032
1782	sub cf::client::send_drawinfo {	3033	sub cf::client::send_drawinfo {
1783	my ($self, $text, $flags) = @_;	3034	my ($self, $text, $flags) = @_;
1784		3035
1785	utf8::encode $text;	3036	utf8::encode $text;
1786	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3037	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1787	}	3038	}
1788		3039
		3040	=item $client->send_big_packet ($pkt)
		3041
		3042	Like C<send_packet>, but tries to compress large packets, and fragments
		3043	them as required.
		3044
		3045	=cut
		3046
		3047	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3048
		3049	sub cf::client::send_big_packet {
		3050	my ($self, $pkt) = @_;
		3051
		3052	# try lzf for large packets
		3053	$pkt = "lzf " . Compress::LZF::compress $pkt
		3054	if 1024 <= length $pkt and $self->{can_lzf};
		3055
		3056	# split very large packets
		3057	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3058	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3059	$pkt = "frag";
		3060	}
		3061
		3062	$self->send_packet ($pkt);
		3063	}
		3064
		3065	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3066
		3067	Send a drawinfo or msg packet to the client, formatting the msg for the
		3068	client if neccessary. C<$type> should be a string identifying the type of
		3069	the message, with C<log> being the default. If C<$color> is negative, suppress
		3070	the message unless the client supports the msg packet.
		3071
		3072	=cut
		3073
		3074	# non-persistent channels (usually the info channel)
		3075	our %CHANNEL = (
		3076	"c/motd" => {
		3077	id => "infobox",
		3078	title => "MOTD",
		3079	reply => undef,
		3080	tooltip => "The message of the day",
		3081	},
		3082	"c/identify" => {
		3083	id => "infobox",
		3084	title => "Identify",
		3085	reply => undef,
		3086	tooltip => "Items recently identified",
		3087	},
		3088	"c/examine" => {
		3089	id => "infobox",
		3090	title => "Examine",
		3091	reply => undef,
		3092	tooltip => "Signs and other items you examined",
		3093	},
		3094	"c/shopinfo" => {
		3095	id => "infobox",
		3096	title => "Shop Info",
		3097	reply => undef,
		3098	tooltip => "What your bargaining skill tells you about the shop",
		3099	},
		3100	"c/book" => {
		3101	id => "infobox",
		3102	title => "Book",
		3103	reply => undef,
		3104	tooltip => "The contents of a note or book",
		3105	},
		3106	"c/lookat" => {
		3107	id => "infobox",
		3108	title => "Look",
		3109	reply => undef,
		3110	tooltip => "What you saw there",
		3111	},
		3112	"c/who" => {
		3113	id => "infobox",
		3114	title => "Players",
		3115	reply => undef,
		3116	tooltip => "Shows players who are currently online",
		3117	},
		3118	"c/body" => {
		3119	id => "infobox",
		3120	title => "Body Parts",
		3121	reply => undef,
		3122	tooltip => "Shows which body parts you posess and are available",
		3123	},
		3124	"c/statistics" => {
		3125	id => "infobox",
		3126	title => "Statistics",
		3127	reply => undef,
		3128	tooltip => "Shows your primary statistics",
		3129	},
		3130	"c/skills" => {
		3131	id => "infobox",
		3132	title => "Skills",
		3133	reply => undef,
		3134	tooltip => "Shows your experience per skill and item power",
		3135	},
		3136	"c/shopitems" => {
		3137	id => "infobox",
		3138	title => "Shop Items",
		3139	reply => undef,
		3140	tooltip => "Shows the items currently for sale in this shop",
		3141	},
		3142	"c/resistances" => {
		3143	id => "infobox",
		3144	title => "Resistances",
		3145	reply => undef,
		3146	tooltip => "Shows your resistances",
		3147	},
		3148	"c/pets" => {
		3149	id => "infobox",
		3150	title => "Pets",
		3151	reply => undef,
		3152	tooltip => "Shows information abotu your pets/a specific pet",
		3153	},
		3154	"c/perceiveself" => {
		3155	id => "infobox",
		3156	title => "Perceive Self",
		3157	reply => undef,
		3158	tooltip => "You gained detailed knowledge about yourself",
		3159	},
		3160	"c/uptime" => {
		3161	id => "infobox",
		3162	title => "Uptime",
		3163	reply => undef,
		3164	tooltip => "How long the server has been running since last restart",
		3165	},
		3166	"c/mapinfo" => {
		3167	id => "infobox",
		3168	title => "Map Info",
		3169	reply => undef,
		3170	tooltip => "Information related to the maps",
		3171	},
		3172	"c/party" => {
		3173	id => "party",
		3174	title => "Party",
		3175	reply => "gsay ",
		3176	tooltip => "Messages and chat related to your party",
		3177	},
		3178	"c/death" => {
		3179	id => "death",
		3180	title => "Death",
		3181	reply => undef,
		3182	tooltip => "Reason for and more info about your most recent death",
		3183	},
		3184	"c/say" => $SAY_CHANNEL,
		3185	"c/chat" => $CHAT_CHANNEL,
		3186	);
		3187
		3188	sub cf::client::send_msg {
		3189	my ($self, $channel, $msg, $color, @extra) = @_;
		3190
		3191	$msg = $self->pl->expand_cfpod ($msg)
		3192	unless $color & cf::NDI_VERBATIM;
		3193
		3194	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3195
		3196	# check predefined channels, for the benefit of C
		3197	if ($CHANNEL{$channel}) {
		3198	$channel = $CHANNEL{$channel};
		3199
		3200	$self->ext_msg (channel_info => $channel);
		3201	$channel = $channel->{id};
		3202
		3203	} elsif (ref $channel) {
		3204	# send meta info to client, if not yet sent
		3205	unless (exists $self->{channel}{$channel->{id}}) {
		3206	$self->{channel}{$channel->{id}} = $channel;
		3207	$self->ext_msg (channel_info => $channel);
		3208	}
		3209
		3210	$channel = $channel->{id};
		3211	}
		3212
		3213	return unless @extra || length $msg;
		3214
		3215	# default colour, mask it out
		3216	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3217	if $color & cf::NDI_DEF;
		3218
		3219	my $pkt = "msg "
		3220	. $self->{json_coder}->encode (
		3221	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3222	);
		3223
		3224	$self->send_big_packet ($pkt);
		3225	}
		3226
		3227	=item $client->ext_msg ($type, @msg)
		3228
		3229	Sends an ext event to the client.
		3230
		3231	=cut
		3232
		3233	sub cf::client::ext_msg($$@) {
		3234	my ($self, $type, @msg) = @_;
		3235
		3236	if ($self->extcmd == 2) {
		3237	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3238	} elsif ($self->extcmd == 1) { # TODO: remove
		3239	push @msg, msgtype => "event_$type";
		3240	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3241	}
		3242	}
		3243
		3244	=item $client->ext_reply ($msgid, @msg)
		3245
		3246	Sends an ext reply to the client.
		3247
		3248	=cut
		3249
		3250	sub cf::client::ext_reply($$@) {
		3251	my ($self, $id, @msg) = @_;
		3252
		3253	return unless $self->extcmd == 2;
		3254
		3255	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3256	}
1789		3257
1790	=item $success = $client->query ($flags, "text", \&cb)	3258	=item $success = $client->query ($flags, "text", \&cb)
1791		3259
1792	Queues a query to the client, calling the given callback with	3260	Queues a query to the client, calling the given callback with
1793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3261	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1794	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3262	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1795		3263
1796	Queries can fail, so check the return code. Or don't, as queries will become	3264	Queries can fail, so check the return code. Or don't, as queries will
1797	reliable at some point in the future.	3265	become reliable at some point in the future.
1798		3266
1799	=cut	3267	=cut
1800		3268
1801	sub cf::client::query {	3269	sub cf::client::query {
1802	my ($self, $flags, $text, $cb) = @_;	3270	my ($self, $flags, $text, $cb) = @_;
…		…
1810	utf8::encode $text;	3278	utf8::encode $text;
1811	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3279	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1812		3280
1813	$self->send_packet ($self->{query_queue}[0][0])	3281	$self->send_packet ($self->{query_queue}[0][0])
1814	if @{ $self->{query_queue} } == 1;	3282	if @{ $self->{query_queue} } == 1;
		3283
		3284	1
1815	}	3285	}
1816		3286
1817	cf::client->attach (	3287	cf::client->attach (
		3288	on_connect => sub {
		3289	my ($ns) = @_;
		3290
		3291	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3292	},
1818	on_reply => sub {	3293	on_reply => sub {
1819	my ($ns, $msg) = @_;	3294	my ($ns, $msg) = @_;
1820		3295
1821	# this weird shuffling is so that direct followup queries	3296	# this weird shuffling is so that direct followup queries
1822	# get handled first	3297	# get handled first
1823	my $queue = delete $ns->{query_queue}	3298	my $queue = delete $ns->{query_queue}
1824	or return; # be conservative, not sure how that can happen, but we saw a crash here	3299	or return; # be conservative, not sure how that can happen, but we saw a crash here
1825		3300
1826	(shift @$queue)->[1]->($msg);	3301	(shift @$queue)->[1]->($msg);
		3302	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1827		3303
1828	push @{ $ns->{query_queue} }, @$queue;	3304	push @{ $ns->{query_queue} }, @$queue;
1829		3305
1830	if (@{ $ns->{query_queue} } == @$queue) {	3306	if (@{ $ns->{query_queue} } == @$queue) {
1831	if (@$queue) {	3307	if (@$queue) {
…		…
1833	} else {	3309	} else {
1834	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3310	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1835	}	3311	}
1836	}	3312	}
1837	},	3313	},
		3314	on_exticmd => sub {
		3315	my ($ns, $buf) = @_;
		3316
		3317	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3318
		3319	if (ref $msg) {
		3320	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3321
		3322	my @reply;
		3323
		3324	if (my $cb = $EXTICMD{$type}) {
		3325	@reply = $cb->($ns, @payload);
		3326	}
		3327
		3328	$ns->ext_reply ($reply, @reply)
		3329	if $reply;
		3330
		3331	} else {
		3332	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3333	}
		3334
		3335	cf::override;
		3336	},
1838	);	3337	);
1839		3338
1840	=item $client->async (\&cb)	3339	=item $client->async (\&cb)
1841		3340
1842	Create a new coroutine, running the specified callback. The coroutine will	3341	Create a new coroutine, running the specified callback. The coroutine will
…		…
1858		3357
1859	$coro	3358	$coro
1860	}	3359	}
1861		3360
1862	cf::client->attach (	3361	cf::client->attach (
1863	on_destroy => sub {	3362	on_client_destroy => sub {
1864	my ($ns) = @_;	3363	my ($ns) = @_;
1865		3364
1866	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3365	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1867	},	3366	},
1868	);	3367	);
…		…
1883	our $safe = new Safe "safe";	3382	our $safe = new Safe "safe";
1884	our $safe_hole = new Safe::Hole;	3383	our $safe_hole = new Safe::Hole;
1885		3384
1886	$SIG{FPE} = 'IGNORE';	3385	$SIG{FPE} = 'IGNORE';
1887		3386
1888	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3387	$safe->permit_only (Opcode::opset qw(
		3388	:base_core :base_mem :base_orig :base_math :base_loop
		3389	grepstart grepwhile mapstart mapwhile
		3390	sort time
		3391	));
1889		3392
1890	# here we export the classes and methods available to script code	3393	# here we export the classes and methods available to script code
1891		3394
1892	=pod	3395	=pod
1893		3396
1894	The following fucntions and emthods are available within a safe environment:	3397	The following functions and methods are available within a safe environment:
1895		3398
1896	cf::object contr pay_amount pay_player map	3399	cf::object
		3400	contr pay_amount pay_player map x y force_find force_add destroy
		3401	insert remove name archname title slaying race decrease split
		3402	value
		3403
1897	cf::object::player player	3404	cf::object::player
1898	cf::player peaceful	3405	player
1899	cf::map trigger	3406
		3407	cf::player
		3408	peaceful
		3409
		3410	cf::map
		3411	trigger
1900		3412
1901	=cut	3413	=cut
1902		3414
1903	for (	3415	for (
1904	["cf::object" => qw(contr pay_amount pay_player map)],	3416	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3417	insert remove inv nrof name archname title slaying race
		3418	decrease split destroy change_exp value msg lore send_msg)],
1905	["cf::object::player" => qw(player)],	3419	["cf::object::player" => qw(player)],
1906	["cf::player" => qw(peaceful)],	3420	["cf::player" => qw(peaceful send_msg)],
1907	["cf::map" => qw(trigger)],	3421	["cf::map" => qw(trigger)],
1908	) {	3422	) {
1909	no strict 'refs';
1910	my ($pkg, @funs) = @$_;	3423	my ($pkg, @funs) = @$_;
1911	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3424	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1912	for @funs;	3425	for @funs;
1913	}	3426	}
1914		3427
…		…
1929		3442
1930	my $qcode = $code;	3443	my $qcode = $code;
1931	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3444	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1932	$qcode =~ s/\n/\\n/g;	3445	$qcode =~ s/\n/\\n/g;
1933		3446
		3447	%vars = (_dummy => 0) unless %vars;
		3448
		3449	my @res;
1934	local $_;	3450	local $_;
1935	local @safe::cf::_safe_eval_args = values %vars;
1936		3451
1937	my $eval =	3452	my $eval =
1938	"do {\n"	3453	"do {\n"
1939	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3454	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1940	. "#line 0 \"{$qcode}\"\n"	3455	. "#line 0 \"{$qcode}\"\n"
1941	. $code	3456	. $code
1942	. "\n}"	3457	. "\n}"
1943	;	3458	;
1944		3459
		3460	if ($CFG{safe_eval}) {
1945	sub_generation_inc;	3461	sub_generation_inc;
		3462	local @safe::cf::_safe_eval_args = values %vars;
1946	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3463	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1947	sub_generation_inc;	3464	sub_generation_inc;
		3465	} else {
		3466	local @cf::_safe_eval_args = values %vars;
		3467	@res = wantarray ? eval eval : scalar eval $eval;
		3468	}
1948		3469
1949	if ($@) {	3470	if ($@) {
1950	warn "$@";	3471	warn "$@",
1951	warn "while executing safe code '$code'\n";	3472	"while executing safe code '$code'\n",
1952	warn "with arguments " . (join " ", %vars) . "\n";	3473	"with arguments " . (join " ", %vars) . "\n";
1953	}	3474	}
1954		3475
1955	wantarray ? @res : $res[0]	3476	wantarray ? @res : $res[0]
1956	}	3477	}
1957		3478
…		…
1971	=cut	3492	=cut
1972		3493
1973	sub register_script_function {	3494	sub register_script_function {
1974	my ($fun, $cb) = @_;	3495	my ($fun, $cb) = @_;
1975		3496
1976	no strict 'refs';	3497	$fun = "safe::$fun" if $CFG{safe_eval};
1977	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3498	*$fun = $safe_hole->wrap ($cb);
1978	}	3499	}
1979		3500
1980	=back	3501	=back
1981		3502
1982	=cut	3503	=cut
1983		3504
1984	#############################################################################	3505	#############################################################################
		3506	# the server's init and main functions
1985		3507
1986	=head2 EXTENSION DATABASE SUPPORT	3508	our %FACEHASH; # hash => idx, #d# HACK for http server
1987		3509
1988	Crossfire maintains a very simple database for extension use. It can	3510	sub load_facedata($) {
1989	currently store anything that can be serialised using Storable, which	3511	my ($path) = @_;
1990	excludes objects.
1991		3512
1992	The parameter C<$family> should best start with the name of the extension	3513	# HACK to clear player env face cache, we need some signal framework
1993	using it, it should be unique.	3514	# for this (global event?)
		3515	%ext::player_env::MUSIC_FACE_CACHE = ();
1994		3516
1995	=over 4	3517	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1996		3518
1997	=item $hashref = cf::db_get $family	3519	trace "loading facedata from $path\n";
1998		3520
1999	Return a hashref for use by the extension C<$family>, which can be	3521	my $facedata = decode_storable load_file $path;
2000	modified. After modifications, you have to call C<cf::db_dirty> or
2001	C<cf::db_sync>.
2002		3522
2003	=item $value = cf::db_get $family => $key	3523	$facedata->{version} == 2
		3524	or cf::cleanup "$path: version mismatch, cannot proceed.";
2004		3525
2005	Returns a single value from the database	3526	# patch in the exptable
2006		3527	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2007	=item cf::db_put $family => $hashref	3528	$facedata->{resource}{"res/exp_table"} = {
2008		3529	type => FT_RSRC,
2009	Stores the given family hashref into the database. Updates are delayed, if	3530	data => $exp_table,
2010	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3531	hash => (Digest::MD5::md5 $exp_table),
2011
2012	=item cf::db_put $family => $key => $value
2013
2014	Stores the given C<$value> in the family hash. Updates are delayed, if you
2015	want the data to be synced to disk immediately, use C<cf::db_sync>.
2016
2017	=item cf::db_dirty
2018
2019	Marks the database as dirty, to be updated at a later time.
2020
2021	=item cf::db_sync
2022
2023	Immediately write the database to disk I<if it is dirty>.
2024
2025	=cut
2026
2027	our $DB;
2028
2029	{
2030	my $path = cf::localdir . "/database.pst";
2031
2032	sub db_load() {
2033	$DB = stat $path ? Storable::retrieve $path : { };
2034	}
2035
2036	my $pid;
2037
2038	sub db_save() {
2039	waitpid $pid, 0 if $pid;
2040	if (0 == ($pid = fork)) {
2041	$DB->{_meta}{version} = 1;
2042	Storable::nstore $DB, "$path~";
2043	rename "$path~", $path;
2044	cf::_exit 0 if defined $pid;
2045	}
2046	}
2047
2048	my $dirty;
2049
2050	sub db_sync() {
2051	db_save if $dirty;
2052	undef $dirty;
2053	}
2054
2055	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2056	db_sync;
2057	});	3532	};
		3533	cf::cede_to_tick;
2058		3534
2059	sub db_dirty() {
2060	$dirty = 1;
2061	$idle->start;
2062	}	3535	{
		3536	my $faces = $facedata->{faceinfo};
2063		3537
2064	sub db_get($;$) {	3538	while (my ($face, $info) = each %$faces) {
2065	@_ >= 2	3539	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2066	? $DB->{$_[0]}{$_[1]}
2067	: ($DB->{$_[0]} ||= { })
2068	}
2069		3540
2070	sub db_put($$;$) {	3541	cf::face::set_visibility $idx, $info->{visibility};
2071	if (@_ >= 3) {	3542	cf::face::set_magicmap $idx, $info->{magicmap};
2072	$DB->{$_[0]}{$_[1]} = $_[2];	3543	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2073	} else {	3544	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2074	$DB->{$_[0]} = $_[1];	3545	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2075	}	3546	$FACEHASH{$info->{hash64}} = $idx;#d#
2076	db_dirty;
2077	}
2078		3547
2079	cf::global->attach (	3548	cf::cede_to_tick;
2080	prio => 10000,
2081	on_cleanup => sub {
2082	db_sync;
2083	},	3549	}
2084	);
2085	}
2086		3550
2087	#############################################################################	3551	while (my ($face, $info) = each %$faces) {
2088	# the server's main()	3552	next unless $info->{smooth};
2089		3553
2090	sub cfg_load {	3554	my $idx = cf::face::find $face
2091	open my $fh, "<:utf8", cf::confdir . "/config"	3555	or next;
2092	or return;
2093		3556
2094	local $/;	3557	if (my $smooth = cf::face::find $info->{smooth}) {
2095	*CFG = YAML::Syck::Load <$fh>;	3558	cf::face::set_smooth $idx, $smooth;
		3559	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3560	} else {
		3561	error "smooth face '$info->{smooth}' not found for face '$face'";
		3562	}
2096		3563
		3564	cf::cede_to_tick;
		3565	}
		3566	}
		3567
		3568	{
		3569	my $anims = $facedata->{animinfo};
		3570
		3571	while (my ($anim, $info) = each %$anims) {
		3572	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3573	cf::cede_to_tick;
		3574	}
		3575
		3576	cf::anim::invalidate_all; # d'oh
		3577	}
		3578
		3579	{
		3580	my $res = $facedata->{resource};
		3581
		3582	while (my ($name, $info) = each %$res) {
		3583	if (defined (my $type = $info->{type})) {
		3584	# TODO: different hash - must free and use new index, or cache ixface data queue
		3585	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3586
		3587	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3588	cf::face::set_type $idx, $type;
		3589	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3590	$FACEHASH{$info->{hash}} = $idx;#d#
		3591	} else {
		3592	# $RESOURCE{$name} = $info; # unused
		3593	}
		3594
		3595	cf::cede_to_tick;
		3596	}
		3597	}
		3598
		3599	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3600
		3601	1
		3602	}
		3603
		3604	register_exticmd fx_want => sub {
		3605	my ($ns, $want) = @_;
		3606
		3607	while (my ($k, $v) = each %$want) {
		3608	$ns->fx_want ($k, $v);
		3609	}
		3610	};
		3611
		3612	sub load_resource_file($) {
		3613	my $guard = lock_acquire "load_resource_file";
		3614
		3615	my $status = load_resource_file_ $_[0];
		3616	get_slot 0.1, 100;
		3617	cf::arch::commit_load;
		3618
		3619	$status
		3620	}
		3621
		3622	sub reload_regions {
		3623	# HACK to clear player env face cache, we need some signal framework
		3624	# for this (global event?)
		3625	%ext::player_env::MUSIC_FACE_CACHE = ();
		3626
		3627	load_resource_file "$MAPDIR/regions"
		3628	or die "unable to load regions file\n";
		3629
		3630	for (cf::region::list) {
		3631	$_->{match} = qr/$_->{match}/
		3632	if exists $_->{match};
		3633	}
		3634	}
		3635
		3636	sub reload_facedata {
		3637	load_facedata "$DATADIR/facedata"
		3638	or die "unable to load facedata\n";
		3639	}
		3640
		3641	sub reload_archetypes {
		3642	load_resource_file "$DATADIR/archetypes"
		3643	or die "unable to load archetypes\n";
		3644	}
		3645
		3646	sub reload_treasures {
		3647	load_resource_file "$DATADIR/treasures"
		3648	or die "unable to load treasurelists\n";
		3649	}
		3650
		3651	sub reload_sound {
		3652	trace "loading sound config from $DATADIR/sound\n";
		3653
		3654	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3655
		3656	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3657	my $sound = $soundconf->{compat}[$_]
		3658	or next;
		3659
		3660	my $face = cf::face::find "sound/$sound->[1]";
		3661	cf::sound::set $sound->[0] => $face;
		3662	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3663	}
		3664
		3665	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3666	my $face = cf::face::find "sound/$v";
		3667	cf::sound::set $k => $face;
		3668	}
		3669	}
		3670
		3671	sub reload_resources {
		3672	trace "reloading resource files...\n";
		3673
		3674	reload_exp_table;
		3675	reload_materials;
		3676	reload_facedata;
		3677	reload_sound;
		3678	reload_archetypes;
		3679	reload_regions;
		3680	reload_treasures;
		3681
		3682	trace "finished reloading resource files\n";
		3683	}
		3684
		3685	sub reload_config {
		3686	trace "reloading config file...\n";
		3687
		3688	my $config = load_file "$CONFDIR/config";
		3689	utf8::decode $config;
		3690	*CFG = decode_yaml $config;
		3691
2097	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3692	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2098		3693
2099	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3694	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2100	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3695	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2101		3696
2102	if (exists $CFG{mlockall}) {	3697	if (exists $CFG{mlockall}) {
2103	eval {	3698	eval {
2104	$CFG{mlockall} ? &mlockall : &munlockall	3699	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2105	and die "WARNING: m(un)lockall failed: $!\n";	3700	and die "WARNING: m(un)lockall failed: $!\n";
2106	};	3701	};
2107	warn $@ if $@;	3702	warn $@ if $@;
2108	}	3703	}
2109	}	3704	}
2110		3705
		3706	sub pidfile() {
		3707	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3708	or die "$PIDFILE: $!";
		3709	flock $fh, &Fcntl::LOCK_EX
		3710	or die "$PIDFILE: flock: $!";
		3711	$fh
		3712	}
		3713
		3714	# make sure only one server instance is running at any one time
		3715	sub atomic {
		3716	my $fh = pidfile;
		3717
		3718	my $pid = <$fh>;
		3719	kill 9, $pid if $pid > 0;
		3720
		3721	seek $fh, 0, 0;
		3722	print $fh $$;
		3723	}
		3724
		3725	sub main_loop {
		3726	trace "EV::loop starting\n";
		3727	if (1) {
		3728	EV::loop;
		3729	}
		3730	trace "EV::loop returned\n";
		3731	goto &main_loop unless $REALLY_UNLOOP;
		3732	}
		3733
2111	sub main {	3734	sub main {
		3735	cf::init_globals; # initialise logging
		3736
		3737	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3738	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3739	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3740	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3741
		3742	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3743
2112	# we must not ever block the main coroutine	3744	# we must not ever block the main coroutine
2113	local $Coro::idle = sub {	3745	local $Coro::idle = sub {
2114	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3746	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2115	async { Event::one_event };	3747	(async {
		3748	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3749	EV::loop EV::LOOP_ONESHOT;
		3750	})->prio (Coro::PRIO_MAX);
2116	};	3751	};
2117		3752
2118	cfg_load;	3753	evthread_start IO::AIO::poll_fileno;
2119	db_load;	3754
		3755	cf::sync_job {
		3756	cf::incloader::init ();
		3757
		3758	cf::init_anim;
		3759	cf::init_attackmess;
		3760	cf::init_dynamic;
		3761
		3762	cf::load_settings;
		3763
		3764	reload_resources;
		3765	reload_config;
		3766	db_init;
		3767
		3768	cf::init_uuid;
		3769	cf::init_signals;
		3770	cf::init_skills;
		3771
		3772	cf::init_beforeplay;
		3773
		3774	atomic;
		3775
2120	load_extensions;	3776	load_extensions;
2121	Event::loop;	3777
		3778	utime time, time, $RUNTIMEFILE;
		3779
		3780	# no (long-running) fork's whatsoever before this point(!)
		3781	use POSIX ();
		3782	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3783
		3784	cf::_post_init 0;
		3785	};
		3786
		3787	cf::object::thawer::errors_are_fatal 0;
		3788	info "parse errors in files are no longer fatal from this point on.\n";
		3789
		3790	AE::postpone {
		3791	undef &main; # free gobs of memory :)
		3792	};
		3793
		3794	goto &main_loop;
2122	}	3795	}
2123		3796
2124	#############################################################################	3797	#############################################################################
2125	# initialisation	3798	# initialisation and cleanup
2126		3799
		3800	# install some emergency cleanup handlers
		3801	BEGIN {
		3802	our %SIGWATCHER = ();
		3803	for my $signal (qw(INT HUP TERM)) {
		3804	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3805	cf::cleanup "SIG$signal";
		3806	};
		3807	}
		3808	}
		3809
		3810	sub write_runtime_sync {
		3811	my $t0 = AE::time;
		3812
		3813	# first touch the runtime file to show we are still running:
		3814	# the fsync below can take a very very long time.
		3815
		3816	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3817
		3818	my $guard = cf::lock_acquire "write_runtime";
		3819
		3820	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3821	or return;
		3822
		3823	my $value = $cf::RUNTIME + 90 + 10;
		3824	# 10 is the runtime save interval, for a monotonic clock
		3825	# 60 allows for the watchdog to kill the server.
		3826
		3827	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3828	and return;
		3829
		3830	# always fsync - this file is important
		3831	aio_fsync $fh
		3832	and return;
		3833
		3834	# touch it again to show we are up-to-date
		3835	aio_utime $fh, undef, undef;
		3836
		3837	close $fh
		3838	or return;
		3839
		3840	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3841	and return;
		3842
		3843	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3844
		3845	1
		3846	}
		3847
		3848	our $uuid_lock;
		3849	our $uuid_skip;
		3850
		3851	sub write_uuid_sync($) {
		3852	$uuid_skip ||= $_[0];
		3853
		3854	return if $uuid_lock;
		3855	local $uuid_lock = 1;
		3856
		3857	my $uuid = "$LOCALDIR/uuid";
		3858
		3859	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3860	or return;
		3861
		3862	my $value = uuid_seq uuid_cur;
		3863
		3864	unless ($value) {
		3865	info "cowardly refusing to write zero uuid value!\n";
		3866	return;
		3867	}
		3868
		3869	my $value = uuid_str $value + $uuid_skip;
		3870	$uuid_skip = 0;
		3871
		3872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3873	and return;
		3874
		3875	# always fsync - this file is important
		3876	aio_fsync $fh
		3877	and return;
		3878
		3879	close $fh
		3880	or return;
		3881
		3882	aio_rename "$uuid~", $uuid
		3883	and return;
		3884
		3885	trace "uuid file written ($value).\n";
		3886
		3887	1
		3888
		3889	}
		3890
		3891	sub write_uuid($$) {
		3892	my ($skip, $sync) = @_;
		3893
		3894	$sync ? write_uuid_sync $skip
		3895	: async { write_uuid_sync $skip };
		3896	}
		3897
		3898	sub emergency_save() {
		3899	my $freeze_guard = cf::freeze_mainloop;
		3900
		3901	info "emergency_perl_save: enter\n";
		3902
		3903	# this is a trade-off: we want to be very quick here, so
		3904	# save all maps without fsync, and later call a global sync
		3905	# (which in turn might be very very slow)
		3906	local $USE_FSYNC = 0;
		3907
		3908	cf::sync_job {
		3909	cf::write_runtime_sync; # external watchdog should not bark
		3910
		3911	# use a peculiar iteration method to avoid tripping on perl
		3912	# refcount bugs in for. also avoids problems with players
		3913	# and maps saved/destroyed asynchronously.
		3914	info "emergency_perl_save: begin player save\n";
		3915	for my $login (keys %cf::PLAYER) {
		3916	my $pl = $cf::PLAYER{$login} or next;
		3917	$pl->valid or next;
		3918	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3919	$pl->save;
		3920	}
		3921	info "emergency_perl_save: end player save\n";
		3922
		3923	cf::write_runtime_sync; # external watchdog should not bark
		3924
		3925	info "emergency_perl_save: begin map save\n";
		3926	for my $path (keys %cf::MAP) {
		3927	my $map = $cf::MAP{$path} or next;
		3928	$map->valid or next;
		3929	$map->save;
		3930	}
		3931	info "emergency_perl_save: end map save\n";
		3932
		3933	cf::write_runtime_sync; # external watchdog should not bark
		3934
		3935	info "emergency_perl_save: begin database checkpoint\n";
		3936	BDB::db_env_txn_checkpoint $DB_ENV;
		3937	info "emergency_perl_save: end database checkpoint\n";
		3938
		3939	info "emergency_perl_save: begin write uuid\n";
		3940	write_uuid_sync 1;
		3941	info "emergency_perl_save: end write uuid\n";
		3942
		3943	cf::write_runtime_sync; # external watchdog should not bark
		3944
		3945	trace "emergency_perl_save: syncing database to disk";
		3946	BDB::db_env_txn_checkpoint $DB_ENV;
		3947
		3948	info "emergency_perl_save: starting sync\n";
		3949	IO::AIO::aio_sync sub {
		3950	info "emergency_perl_save: finished sync\n";
		3951	};
		3952
		3953	cf::write_runtime_sync; # external watchdog should not bark
		3954
		3955	trace "emergency_perl_save: flushing outstanding aio requests";
		3956	while (IO::AIO::nreqs || BDB::nreqs) {
		3957	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3958	}
		3959
		3960	cf::write_runtime_sync; # external watchdog should not bark
		3961	};
		3962
		3963	info "emergency_perl_save: leave\n";
		3964	}
		3965
		3966	sub post_cleanup {
		3967	my ($make_core) = @_;
		3968
		3969	IO::AIO::flush;
		3970
		3971	error Carp::longmess "post_cleanup backtrace"
		3972	if $make_core;
		3973
		3974	my $fh = pidfile;
		3975	unlink $PIDFILE if <$fh> == $$;
		3976	}
		3977
		3978	# a safer delete_package, copied from Symbol
		3979	sub clear_package($) {
		3980	my $pkg = shift;
		3981
		3982	# expand to full symbol table name if needed
		3983	unless ($pkg =~ /^main::.*::$/) {
		3984	$pkg = "main$pkg" if $pkg =~ /^::/;
		3985	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3986	$pkg .= '::' unless $pkg =~ /::$/;
		3987	}
		3988
		3989	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3990	my $stem_symtab = *{$stem}{HASH};
		3991
		3992	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3993	or return;
		3994
		3995	# clear all symbols
		3996	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3997	for my $name (keys %$leaf_symtab) {
		3998	_gv_clear *{"$pkg$name"};
		3999	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4000	}
		4001	}
		4002
2127	sub reload() {	4003	sub do_reload_perl() {
2128	# can/must only be called in main	4004	# can/must only be called in main
2129	if ($Coro::current != $Coro::main) {	4005	unless (in_main) {
2130	warn "can only reload from main coroutine\n";	4006	error "can only reload from main coroutine";
2131	return;	4007	return;
2132	}	4008	}
2133		4009
2134	warn "reloading...";	4010	return if $RELOAD++;
2135		4011
2136	my $guard = freeze_mainloop;	4012	my $t1 = AE::time;
		4013
		4014	while ($RELOAD) {
		4015	cf::get_slot 0.1, -1, "reload_perl";
		4016	info "perl_reload: reloading...";
		4017
		4018	trace "perl_reload: entering sync_job";
		4019
		4020	cf::sync_job {
2137	cf::emergency_save;	4021	#cf::emergency_save;
2138		4022
2139	eval {	4023	trace "perl_reload: cancelling all extension coros";
2140	# if anything goes wrong in here, we should simply crash as we already saved
2141
2142	# cancel all watchers
2143	for (Event::all_watchers) {
2144	$_->cancel if $_->data & WF_AUTOCANCEL;
2145	}
2146
2147	# cancel all extension coros
2148	$_->cancel for values %EXT_CORO;	4024	$_->cancel for values %EXT_CORO;
2149	%EXT_CORO = ();	4025	%EXT_CORO = ();
2150		4026
2151	# unload all extensions	4027	trace "perl_reload: removing commands";
2152	for (@exts) {	4028	%COMMAND = ();
2153	warn "unloading <$_>";
2154	unload_extension $_;
2155	}
2156		4029
2157	# unload all modules loaded from $LIBDIR	4030	trace "perl_reload: removing ext/exti commands";
2158	while (my ($k, $v) = each %INC) {	4031	%EXTCMD = ();
2159	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4032	%EXTICMD = ();
2160		4033
2161	warn "removing <$k>";	4034	trace "perl_reload: unloading/nuking all extensions";
2162	delete $INC{$k};	4035	for my $pkg (@EXTS) {
		4036	trace "... unloading $pkg";
2163		4037
2164	$k =~ s/\.pm$//;
2165	$k =~ s/\//::/g;
2166
2167	if (my $cb = $k->can ("unload_module")) {	4038	if (my $cb = $pkg->can ("unload")) {
		4039	eval {
2168	$cb->();	4040	$cb->($pkg);
		4041	1
		4042	} or error "$pkg unloaded, but with errors: $@";
		4043	}
		4044
		4045	trace "... clearing $pkg";
		4046	clear_package $pkg;
2169	}	4047	}
2170		4048
2171	Symbol::delete_package $k;	4049	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4050	while (my ($k, $v) = each %INC) {
		4051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4052
		4053	trace "... unloading $k";
		4054	delete $INC{$k};
		4055
		4056	$k =~ s/\.pm$//;
		4057	$k =~ s/\//::/g;
		4058
		4059	if (my $cb = $k->can ("unload_module")) {
		4060	$cb->();
		4061	}
		4062
		4063	clear_package $k;
2172	}	4064	}
2173		4065
2174	# sync database to disk
2175	cf::db_sync;
2176	IO::AIO::flush;
2177
2178	# get rid of safe::, as good as possible	4066	trace "perl_reload: getting rid of safe::, as good as possible";
2179	Symbol::delete_package "safe::$_"	4067	clear_package "safe::$_"
2180	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4068	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2181		4069
2182	# remove register_script_function callbacks	4070	trace "perl_reload: unloading cf.pm \"a bit\"";
2183	# TODO
2184
2185	# unload cf.pm "a bit"
2186	delete $INC{"cf.pm"};	4071	delete $INC{"cf.pm"};
		4072	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2187		4073
2188	# don't, removes xs symbols, too,	4074	# don't, removes xs symbols, too,
2189	# and global variables created in xs	4075	# and global variables created in xs
2190	#Symbol::delete_package __PACKAGE__;	4076	#clear_package __PACKAGE__;
2191		4077
2192	# reload cf.pm	4078	info "perl_reload: unload completed, starting to reload now";
2193	warn "reloading cf.pm";	4079
		4080	trace "perl_reload: reloading cf.pm";
2194	require cf;	4081	require cf;
2195	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4082	cf::_connect_to_perl_1;
2196		4083
2197	# load config and database again	4084	trace "perl_reload: loading config and database again";
2198	cf::cfg_load;	4085	cf::reload_config;
2199	cf::db_load;
2200		4086
2201	# load extensions	4087	trace "perl_reload: loading extensions";
2202	warn "load extensions";
2203	cf::load_extensions;	4088	cf::load_extensions;
2204		4089
2205	# reattach attachments to objects	4090	if ($REATTACH_ON_RELOAD) {
2206	warn "reattach";	4091	trace "perl_reload: reattaching attachments to objects/players";
2207	_global_reattach;	4092	_global_reattach; # objects, sockets
		4093	trace "perl_reload: reattaching attachments to maps";
2208	reattach $_ for values %MAP;	4094	reattach $_ for values %MAP;
		4095	trace "perl_reload: reattaching attachments to players";
		4096	reattach $_ for values %PLAYER;
		4097	}
		4098
		4099	cf::_post_init 1;
		4100
		4101	trace "perl_reload: leaving sync_job";
		4102
		4103	1
		4104	} or do {
		4105	error $@;
		4106	cf::cleanup "perl_reload: error, exiting.";
		4107	};
		4108
		4109	--$RELOAD;
		4110	}
		4111
		4112	$t1 = AE::time - $t1;
		4113	info "perl_reload: completed in ${t1}s\n";
		4114	};
		4115
		4116	our $RELOAD_WATCHER; # used only during reload
		4117
		4118	sub reload_perl() {
		4119	# doing reload synchronously and two reloads happen back-to-back,
		4120	# coro crashes during coro_state_free->destroy here.
		4121
		4122	$RELOAD_WATCHER ||= cf::async {
		4123	Coro::AIO::aio_wait cache_extensions;
		4124
		4125	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4126	do_reload_perl;
		4127	undef $RELOAD_WATCHER;
		4128	};
2209	};	4129	};
2210
2211	if ($@) {
2212	warn $@;
2213	warn "error while reloading, exiting.";
2214	exit 1;
2215	}
2216
2217	warn "reloaded successfully";
2218	};
2219
2220	#############################################################################
2221
2222	unless ($LINK_MAP) {
2223	$LINK_MAP = cf::map::new;
2224
2225	$LINK_MAP->width (41);
2226	$LINK_MAP->height (41);
2227	$LINK_MAP->alloc;
2228	$LINK_MAP->path ("{link}");
2229	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2230	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2231
2232	# dirty hack because... archetypes are not yet loaded
2233	Event->timer (
2234	after => 10,
2235	cb => sub {
2236	$_[0]->w->cancel;
2237
2238	# provide some exits "home"
2239	my $exit = cf::object::new "exit";
2240
2241	$exit->slaying ($EMERGENCY_POSITION->[0]);
2242	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2243	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2244
2245	$LINK_MAP->insert ($exit->clone, 19, 19);
2246	$LINK_MAP->insert ($exit->clone, 19, 20);
2247	$LINK_MAP->insert ($exit->clone, 19, 21);
2248	$LINK_MAP->insert ($exit->clone, 20, 19);
2249	$LINK_MAP->insert ($exit->clone, 20, 21);
2250	$LINK_MAP->insert ($exit->clone, 21, 19);
2251	$LINK_MAP->insert ($exit->clone, 21, 20);
2252	$LINK_MAP->insert ($exit->clone, 21, 21);
2253
2254	$exit->destroy;
2255	});
2256
2257	$LINK_MAP->{deny_save} = 1;
2258	$LINK_MAP->{deny_reset} = 1;
2259
2260	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2261	}	4130	}
2262
2263	register "<global>", __PACKAGE__;
2264		4131
2265	register_command "reload" => sub {	4132	register_command "reload" => sub {
2266	my ($who, $arg) = @_;	4133	my ($who, $arg) = @_;
2267		4134
2268	if ($who->flag (FLAG_WIZ)) {	4135	if ($who->flag (FLAG_WIZ)) {
2269	$who->message ("start of reload.");
2270	reload;
2271	$who->message ("end of reload.");	4136	$who->message ("reloading server.");
		4137	async {
		4138	$Coro::current->{desc} = "perl_reload";
		4139	reload_perl;
		4140	};
2272	}	4141	}
2273	};	4142	};
2274		4143
2275	unshift @INC, $LIBDIR;	4144	#############################################################################
2276		4145
2277	$TICK_WATCHER = Event->timer (	4146	my $bug_warning = 0;
2278	reentrant => 0,
2279	prio => 0,
2280	at => $NEXT_TICK || $TICK,
2281	data => WF_AUTOCANCEL,
2282	cb => sub {
2283	cf::server_tick; # one server iteration
2284	$RUNTIME += $TICK;
2285	$NEXT_TICK += $TICK;
2286		4147
2287	# if we are delayed by four ticks or more, skip them all	4148	sub wait_for_tick() {
2288	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4149	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2289		4150
2290	$TICK_WATCHER->at ($NEXT_TICK);	4151	$WAIT_FOR_TICK->wait;
2291	$TICK_WATCHER->start;	4152	}
		4153
		4154	sub wait_for_tick_begin() {
		4155	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4156
		4157	my $signal = new Coro::Signal;
		4158	push @WAIT_FOR_TICK_BEGIN, $signal;
		4159	$signal->wait;
		4160	}
		4161
		4162	sub tick {
		4163	if ($Coro::current != $Coro::main) {
		4164	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4165	unless ++$bug_warning > 10;
		4166	return;
2292	},	4167	}
2293	);
2294		4168
2295	IO::AIO::max_poll_time $TICK * 0.2;	4169	cf::one_tick; # one server iteration
2296		4170
2297	Event->io (	4171	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2298	fd => IO::AIO::poll_fileno,
2299	poll => 'r',
2300	prio => 5,
2301	data => WF_AUTOCANCEL,
2302	cb => \&IO::AIO::poll_cb,
2303	);
2304		4172
2305	Event->timer (	4173	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2306	data => WF_AUTOCANCEL,	4174	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2307	after => 0,	4175	Coro::async_pool {
2308	interval => 10,	4176	$Coro::current->{desc} = "runtime saver";
2309	cb => sub {
2310	(Coro::unblock_sub {
2311	write_runtime	4177	write_runtime_sync
2312	or warn "ERROR: unable to write runtime file: $!";	4178	or error "ERROR: unable to write runtime file: $!";
2313	})->();	4179	};
2314	},	4180	}
2315	);	4181
		4182	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4183	$sig->send;
		4184	}
		4185	$WAIT_FOR_TICK->broadcast;
		4186
		4187	$LOAD = ($NOW - $TICK_START) / $TICK;
		4188	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4189
		4190	if (0) {
		4191	if ($NEXT_TICK) {
		4192	my $jitter = $TICK_START - $NEXT_TICK;
		4193	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4194	debug "jitter $JITTER\n";#d#
		4195	}
		4196	}
		4197	}
		4198
		4199	{
		4200	# configure BDB
		4201
		4202	BDB::min_parallel 16;
		4203	BDB::max_poll_reqs $TICK * 0.1;
		4204	#$AnyEvent::BDB::WATCHER->priority (1);
		4205
		4206	unless ($DB_ENV) {
		4207	$DB_ENV = BDB::db_env_create;
		4208	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4209	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4210	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4211	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4212	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4213
		4214	cf::sync_job {
		4215	eval {
		4216	BDB::db_env_open
		4217	$DB_ENV,
		4218	$BDBDIR,
		4219	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4220	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4221	0666;
		4222
		4223	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4224	};
		4225
		4226	cf::cleanup "db_env_open(db): $@" if $@;
		4227	};
		4228	}
		4229
		4230	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4231	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4232	};
		4233	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4234	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4235	};
		4236	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4237	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4238	};
		4239	}
		4240
		4241	{
		4242	# configure IO::AIO
		4243
		4244	IO::AIO::min_parallel 8;
		4245	IO::AIO::max_poll_time $TICK * 0.1;
		4246	undef $AnyEvent::AIO::WATCHER;
		4247	}
		4248
		4249	our $_log_backtrace;
		4250	our $_log_backtrace_last;
		4251
		4252	sub _log_backtrace {
		4253	my ($msg, @addr) = @_;
		4254
		4255	$msg =~ s/\n$//;
		4256
		4257	if ($_log_backtrace_last eq $msg) {
		4258	LOG llevInfo, "[ABT] $msg\n";
		4259	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4260	# limit the # of concurrent backtraces
		4261	} elsif ($_log_backtrace < 2) {
		4262	$_log_backtrace_last = $msg;
		4263	++$_log_backtrace;
		4264	my $perl_bt = Carp::longmess $msg;
		4265	async {
		4266	$Coro::current->{desc} = "abt $msg";
		4267
		4268	my @bt = fork_call {
		4269	@addr = map { sprintf "%x", $_ } @addr;
		4270	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4271	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4272	or die "addr2line: $!";
		4273
		4274	my @funcs;
		4275	my @res = <$fh>;
		4276	chomp for @res;
		4277	while (@res) {
		4278	my ($func, $line) = splice @res, 0, 2, ();
		4279	push @funcs, "[$func] $line";
		4280	}
		4281
		4282	@funcs
		4283	};
		4284
		4285	LOG llevInfo, "[ABT] $perl_bt\n";
		4286	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4287	LOG llevInfo, "[ABT] $_\n" for @bt;
		4288	--$_log_backtrace;
		4289	};
		4290	} else {
		4291	LOG llevInfo, "[ABT] $msg\n";
		4292	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4293	}
		4294	}
		4295
		4296	# load additional modules
		4297	require "cf/$_.pm" for @EXTRA_MODULES;
		4298	cf::_connect_to_perl_2;
2316		4299
2317	END { cf::emergency_save }	4300	END { cf::emergency_save }
2318		4301
2319	1	4302	1
2320		4303

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