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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.597 by root, Sun Nov 11 02:14:37 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
20	use Data::Dumper;	59	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	60	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	61	use YAML::XS ();
		62	use IO::AIO ();
25	use Time::HiRes;	63	use Time::HiRes;
		64	use Compress::LZF;
		65	use Digest::MD5 ();
26		66
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	67	AnyEvent::detect;
		68
		69	# configure various modules to our taste
		70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
		72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		73
		74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		79
		80	# strictly for debugging
		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		82
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		84
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	85	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		86
36	our %COMMAND = ();	87	our %COMMAND = ();
37	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
38		89
39	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTACMD = ();
		93	our %EXTICMD = ();
		94	our %EXTIACMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	95	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	96	our %EXT_MAP = (); # pluggable maps
43		97
		98	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	99	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	100	our @REFLECT; # set by XS
		101	our %REFLECT; # set by us
46		102
47	our $TICK = MAX_TIME * 1e-6;	103	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	104
		105	our $DATADIR = datadir;
		106	our $LIBDIR = "$DATADIR/ext";
		107	our $PODDIR = "$DATADIR/pod";
		108	our $MAPDIR = "$DATADIR/" . mapdir;
		109
		110	our $LOCALDIR = localdir;
		111	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		112	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		113	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		114	our $RANDOMDIR = "$LOCALDIR/random";
		115	our $BDBDIR = "$LOCALDIR/db";
		116	our $PIDFILE = "$LOCALDIR/pid";
		117	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		118
		119	#our %RESOURCE; # unused
		120
		121	our $OUTPUT_RATE_MIN = 3000;
		122	our $OUTPUT_RATE_MAX = 1000000;
		123
		124	our $MAX_LINKS = 32; # how many chained exits to follow
		125	our $VERBOSE_IO = 1;
		126
		127	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		128	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	129	our $NEXT_TICK;
		130	our $USE_FSYNC = 1; # use fsync to write maps - default on
		131
		132	our $BDB_DEADLOCK_WATCHER;
		133	our $BDB_CHECKPOINT_WATCHER;
		134	our $BDB_TRICKLE_WATCHER;
		135	our $DB_ENV;
		136
		137	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		138
		139	our %CFG;
		140	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		141
		142	our $UPTIME; $UPTIME ||= time;
		143	our $RUNTIME = 0;
		144	our $SERVER_TICK = 0;
50	our $NOW;	145	our $NOW;
51		146
52	our %CFG;	147	our (%PLAYER, %PLAYER_LOADING); # all users
		148	our (%MAP, %MAP_LOADING ); # all maps
		149	our $LINK_MAP; # the special {link} map, which is always available
53		150
54	our $UPTIME; $UPTIME ||= time;	151	# used to convert map paths into valid unix filenames by replacing / by ∕
55	our $RUNTIME;	152	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		153
57	our %PLAYER; # all users	154	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
58	our %MAP; # all maps	155	our $LOADAVG; # same thing, but with alpha-smoothing
59	our $LINK_MAP; # the special {link} map	156	our $JITTER; # average jitter
60	our $RANDOM_MAPS = cf::localdir . "/random";	157	our $TICK_START; # for load detecting purposes
61		158
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	159	our @POST_INIT;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	160
		161	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		162	our $REALLY_UNLOOP; # never set to true, please :)
		163
		164	our $WAIT_FOR_TICK = new Coro::Signal;
		165	our @WAIT_FOR_TICK_BEGIN;
64		166
65	binmode STDOUT;	167	binmode STDOUT;
66	binmode STDERR;	168	binmode STDERR;
67		169
68	# read virtual server time, if available	170	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	171	unless ($RUNTIME || !-e $RUNTIMEFILE) {
70	open my $fh, "<", cf::localdir . "/runtime"	172	open my $fh, "<", $RUNTIMEFILE
71	or die "unable to read runtime file: $!";	173	or die "unable to read $RUNTIMEFILE file: $!";
72	$RUNTIME = <$fh> + 0.;	174	$RUNTIME = <$fh> + 0.;
73	}	175	}
74		176
75	mkdir cf::localdir;	177	eval "sub TICK() { $TICK } 1" or die;
76	mkdir cf::localdir . "/" . cf::playerdir;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		178
81	# a special map that is always available	179	mkdir $_
82	our $LINK_MAP;	180	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		181
83	our $EMERGENCY_POSITION;	182	our $EMERGENCY_POSITION;
84		183
		184	sub cf::map::normalise;
		185
		186	sub in_main() {
		187	$Coro::current == $Coro::main
		188	}
		189
85	#############################################################################	190	#############################################################################
86		191
		192	%REFLECT = ();
		193	for (@REFLECT) {
		194	my $reflect = JSON::XS::decode_json $_;
		195	$REFLECT{$reflect->{class}} = $reflect;
		196	}
		197
		198	# this is decidedly evil
		199	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		200
		201	#############################################################################
		202
87	=head2 GLOBAL VARIABLES	203	=head2 GLOBAL VARIABLES
88		204
89	=over 4	205	=over 4
90		206
91	=item $cf::UPTIME	207	=item $cf::UPTIME
92		208
93	The timestamp of the server start (so not actually an uptime).	209	The timestamp of the server start (so not actually an "uptime").
		210
		211	=item $cf::SERVER_TICK
		212
		213	An unsigned integer that starts at zero when the server is started and is
		214	incremented on every tick.
		215
		216	=item $cf::NOW
		217
		218	The (real) time of the last (current) server tick - updated before and
		219	after tick processing, so this is useful only as a rough "what time is it
		220	now" estimate.
		221
		222	=item $cf::TICK
		223
		224	The interval between each server tick, in seconds.
94		225
95	=item $cf::RUNTIME	226	=item $cf::RUNTIME
96		227
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	228	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	229	every server tick.
99		230
100	=item $cf::LIBDIR	231	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		232	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		233	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		234
102	The perl library directory, where extensions and cf-specific modules can	235	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	236	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		237	unique-items directory, player file directory, random maps directory and
		238	database environment.
104		239
		240	=item $cf::LOADAVG
		241
		242	The current CPU load on the server (alpha-smoothed), as a value between 0
		243	(none) and 1 (overloaded), indicating how much time is spent on processing
		244	objects per tick. Healthy values are < 0.5.
		245
105	=item $cf::NOW	246	=item $cf::LOAD
106		247
107	The time of the last (current) server tick.	248	The raw value load value from the last tick.
108
109	=item $cf::TICK
110
111	The interval between server ticks, in seconds.
112		249
113	=item %cf::CFG	250	=item %cf::CFG
114		251
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	252	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	253	from wherever your confdir points to.
117		254
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	255	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		256
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	257	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	258	returns directly I<after> the tick processing (and consequently, can only wake one thread
122	processing has been done. Call C<< ->wait >> on them to maximise the	259	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	260
		261	Note that cf::Wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
124		289
125	=back	290	=back
126		291
127	=cut	292	=cut
128		293
129	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
130	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
131	my $msg = join "", @_;	301	my $msg = join "", @_;
132	utf8::encode $msg;
133		302
134	$msg .= "\n"	303	$msg .= "\n"
135	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
136		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
137	LOG llevError, $msg;	308	LOG llevWarn, $msg;
138	};	309	};
139	}	310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
140		324
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		332
148	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	334	# within the Safe compartment.
150	for my $pkg (qw(	335	for my $pkg (qw(
151	cf::global cf::attachable	336	cf::global cf::attachable
152	cf::object cf::object::player	337	cf::object cf::object::player
153	cf::client cf::player	338	cf::client cf::player
154	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
155	cf::map cf::party cf::region	341	cf::party cf::region
156	)) {	342	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	344	}
160		345
161	$Event::DIED = sub {	346	$EV::DIED = sub {
162	warn "error in event callback: @_";	347	warn "error in event callback: $@";
163	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
164		356
165	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
166		358
167	=over 4	359	=over 4
168		360
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	380	$d
189	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
190	}	382	}
191		383
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
193		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
194	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
195		437
196	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
197		439
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
206		441
207	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
208		443
209	=cut	444	=cut
210		445
211	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
213	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
214	}	511	}
215		512
216	=item cf::lock_wait $string	513	=item cf::lock_wait $string
217		514
218	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
219		516
220	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
221		518
222	Wait until the given lock is available and then acquires it and returns	519	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
225	returned.	522	returned.
226		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
227	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
229		529
230	=cut	530	=item $locked = cf::lock_active $string
231		531
232	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
233		537
234	sub lock_wait($) {	538	sub lock_wait($) {
235	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
236
237	# wait for lock, if any
238	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;
241	}
242	}	540	}
243		541
244	sub lock_acquire($) {	542	sub lock_acquire($) {
245	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
246		545
247	# wait, to be sure we are not locked	546	sub lock_active($) {
248	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
249
250	$LOCK{$key} = [];
251
252	Coro::guard {
253	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };
255	}
256	}	548	}
257		549
258	sub freeze_mainloop {	550	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
260		552
261	my $guard = Coro::guard { $TICK_WATCHER->start };	553	&Guard::guard (\&tick_inhibit_dec);
262	$TICK_WATCHER->stop;	554	}
263	$guard	555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
264	}	639	}
265		640
266	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
267		642
268	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		648
274	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
275		650
276	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
277		652
278	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
281		657
282	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
285	fast or be very important.	661	fast or be very important.
…		…
287	=cut	663	=cut
288		664
289	sub sync_job(&) {	665	sub sync_job(&) {
290	my ($job) = @_;	666	my ($job) = @_;
291		667
292	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
293	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
295		673
296	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	675
298	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
299		677
300	my $busy = 1;	678	my $busy = 1;
301	my @res;	679	my @res;
302		680
303	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	683	@res = eval { $job->() };
305	warn $@ if $@;	684	error $@ if $@;
306	undef $busy;	685	undef $busy;
307	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
308		687
309	while ($busy) {	688	while ($busy) {
310	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
311	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
312		699
313	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
314	} else {	701	} else {
315	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
316		703
…		…
336	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
337		724
338	$coro	725	$coro
339	}	726	}
340		727
341	sub write_runtime {	728	=item fork_call { }, @args
342	my $runtime = cf::localdir . "/runtime";
343		729
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
345	or return;	731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
346		734
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		736
351	aio_fsync $fh	737	sub post_fork {
352	and return;	738	reset_signals;
		739	}
353		740
354	close $fh	741	sub fork_call(&@) {
355	or return;	742	my ($cb, @args) = @_;
356		743
357	aio_rename "$runtime~", $runtime	744	# we seemingly have to make a local copy of the whole thing,
358	and return;	745	# otherwise perl prematurely frees the stuff :/
		746	# TODO: investigate and fix (likely this will be rather laborious)
359		747
		748	my @res = Coro::Util::fork_eval {
		749	cf::post_fork;
		750	&$cb
		751	} @args;
		752
		753	wantarray ? @res : $res[-1]
		754	}
		755
		756	sub objinfo {
360	1	757	(
		758	"counter value" => cf::object::object_count,
		759	"objects created" => cf::object::create_count,
		760	"objects destroyed" => cf::object::destroy_count,
		761	"freelist size" => cf::object::free_count,
		762	"allocated objects" => cf::object::objects_size,
		763	"active objects" => cf::object::actives_size,
		764	)
		765	}
		766
		767	=item $coin = coin_from_name $name
		768
		769	=cut
		770
		771	our %coin_alias = (
		772	"silver" => "silvercoin",
		773	"silvercoin" => "silvercoin",
		774	"silvercoins" => "silvercoin",
		775	"gold" => "goldcoin",
		776	"goldcoin" => "goldcoin",
		777	"goldcoins" => "goldcoin",
		778	"platinum" => "platinacoin",
		779	"platinumcoin" => "platinacoin",
		780	"platinumcoins" => "platinacoin",
		781	"platina" => "platinacoin",
		782	"platinacoin" => "platinacoin",
		783	"platinacoins" => "platinacoin",
		784	"royalty" => "royalty",
		785	"royalties" => "royalty",
		786	);
		787
		788	sub coin_from_name($) {
		789	$coin_alias{$_[0]}
		790	? cf::arch::find $coin_alias{$_[0]}
		791	: undef
		792	}
		793
		794	=item $value = cf::db_get $family => $key
		795
		796	Returns a single value from the environment database.
		797
		798	=item cf::db_put $family => $key => $value
		799
		800	Stores the given C<$value> in the family. It can currently store binary
		801	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		802
		803	=item $db = cf::db_table "name"
		804
		805	Create and/or open a new database table. The string must not be "db" and must be unique
		806	within each server.
		807
		808	=cut
		809
		810	sub db_table($) {
		811	cf::error "db_get called from main context"
		812	if $Coro::current == $Coro::main;
		813
		814	my ($name) = @_;
		815	my $db = BDB::db_create $DB_ENV;
		816
		817	eval {
		818	$db->set_flags (BDB::CHKSUM);
		819
		820	utf8::encode $name;
		821	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		822	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		823	cf::cleanup "db_open(db): $!" if $!;
		824	};
		825	cf::cleanup "db_open(db): $@" if $@;
		826
		827	$db
		828	}
		829
		830	our $DB;
		831
		832	sub db_init {
		833	$DB ||= db_table "db";
		834	}
		835
		836	sub db_get($$) {
		837	my $key = "$_[0]/$_[1]";
		838
		839	cf::error "db_get called from main context"
		840	if $Coro::current == $Coro::main;
		841
		842	BDB::db_get $DB, undef, $key, my $data;
		843
		844	$! ? ()
		845	: $data
		846	}
		847
		848	sub db_put($$$) {
		849	BDB::dbreq_pri 4;
		850	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		851	}
		852
		853	=item cf::cache $id => [$paths...], $processversion => $process
		854
		855	Generic caching function that returns the value of the resource $id,
		856	caching and regenerating as required.
		857
		858	This function can block.
		859
		860	=cut
		861
		862	sub cache {
		863	my ($id, $src, $processversion, $process) = @_;
		864
		865	my $meta =
		866	join "\x00",
		867	$processversion,
		868	map {
		869	aio_stat $_
		870	and Carp::croak "$_: $!";
		871
		872	($_, (stat _)[7,9])
		873	} @$src;
		874
		875	my $dbmeta = db_get cache => "$id/meta";
		876	if ($dbmeta ne $meta) {
		877	# changed, we may need to process
		878
		879	my @data;
		880	my $md5;
		881
		882	for (0 .. $#$src) {
		883	$data[$_] = load_file $src->[$_];
		884	}
		885
		886	# if processing is expensive, check
		887	# checksum first
		888	if (1) {
		889	$md5 =
		890	join "\x00",
		891	$processversion,
		892	map {
		893	cf::cede_to_tick;
		894	($src->[$_], Digest::MD5::md5_hex $data[$_])
		895	} 0.. $#$src;
		896
		897
		898	my $dbmd5 = db_get cache => "$id/md5";
		899	if ($dbmd5 eq $md5) {
		900	db_put cache => "$id/meta", $meta;
		901
		902	return db_get cache => "$id/data";
		903	}
		904	}
		905
		906	my $t1 = Time::HiRes::time;
		907	my $data = $process->(\@data);
		908	my $t2 = Time::HiRes::time;
		909
		910	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		911
		912	db_put cache => "$id/data", $data;
		913	db_put cache => "$id/md5" , $md5;
		914	db_put cache => "$id/meta", $meta;
		915
		916	return $data;
		917	}
		918
		919	db_get cache => "$id/data"
		920	}
		921
		922	=item cf::datalog type => key => value, ...
		923
		924	Log a datalog packet of the given type with the given key-value pairs.
		925
		926	=cut
		927
		928	sub datalog($@) {
		929	my ($type, %kv) = @_;
		930	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	931	}
362		932
363	=back	933	=back
364		934
365	=cut	935	=cut
366		936
367	#############################################################################	937	#############################################################################
368		938
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542
543	#############################################################################
544
545	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
546		940
547	Many objects in crossfire are so-called attachable objects. That means you can	941	Many objects in deliantra are so-called attachable objects. That means you can
548	attach callbacks/event handlers (a collection of which is called an "attachment")	942	attach callbacks/event handlers (a collection of which is called an "attachment")
549	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
550		944
551	In the following description, CLASS can be any of C<global>, C<object>	945	In the following description, CLASS can be any of C<global>, C<object>
552	C<player>, C<client> or C<map> (i.e. the attachable objects in	946	C<player>, C<client> or C<map> (i.e. the attachable objects in
553	crossfire+).	947	Deliantra).
554		948
555	=over 4	949	=over 4
556		950
557	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
558		952
…		…
602	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
603		997
604	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
605	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
606		1000
607	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
608	that are attached at load/instantiate time, thus the need for a name.	1002	that are attached at load/instantiate time, thus the need for a name.
609		1003
610	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
611		1005
612	=over 4	1006	=over 4
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	1066	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	1067	our @CB_MAP = ();
674		1068
675	my %attachment;	1069	my %attachment;
676		1070
		1071	sub cf::attachable::thawer_merge {
		1072	# simply override everything except _meta
		1073	local $_[0]{_meta};
		1074	%{$_[0]} = %{$_[1]};
		1075	}
		1076
677	sub _attach_cb($$$$) {	1077	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	1078	my ($registry, $event, $prio, $cb) = @_;
679		1079
680	use sort 'stable';	1080	use sort 'stable';
681		1081
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	1115	$registry = $CB_TYPE[$object_type] ||= [];
716		1116
717	} elsif ($type eq "subtype") {	1117	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	1118	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	1119	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1120	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		1121
722	} elsif ($type eq "package") {	1122	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	1123	my $pkg = shift @arg;
724		1124
725	while (my ($name, $id) = each %cb_id) {	1125	while (my ($name, $id) = each %cb_id) {
…		…
730		1130
731	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
732	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
733		1133
734	} elsif (ref $type) {	1134	} elsif (ref $type) {
735	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
736		1136
737	} else {	1137	} else {
738	shift @arg;	1138	shift @arg;
739	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
740	}	1140	}
741	}	1141	}
742	}	1142	}
743		1143
744	sub _object_attach {	1144	sub _object_attach {
…		…
754	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
755	}	1155	}
756		1156
757	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
758	} else {	1158	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
760	}	1160	}
761		1161
762	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
763	}	1163	}
764		1164
…		…
766	if (ref $_[0]) {	1166	if (ref $_[0]) {
767	_object_attach @_;	1167	_object_attach @_;
768	} else {	1168	} else {
769	_attach shift->_attach_registry, @_;	1169	_attach shift->_attach_registry, @_;
770	}	1170	}
		1171	_recalc_want;
771	};	1172	};
772		1173
773	# all those should be optimised	1174	# all those should be optimised
774	sub cf::attachable::detach {	1175	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	1176	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	1179	delete $obj->{_attachment}{$name};
779	reattach ($obj);	1180	reattach ($obj);
780	} else {	1181	} else {
781	Carp::croak "cannot, currently, detach class attachments";	1182	Carp::croak "cannot, currently, detach class attachments";
782	}	1183	}
		1184	_recalc_want;
783	};	1185	};
784		1186
785	sub cf::attachable::attached {	1187	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
787		1189
…		…
802	";	1204	";
803	die if $@;	1205	die if $@;
804	}	1206	}
805		1207
806	our $override;	1208	our $override;
807	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1209	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
808		1210
809	sub override {	1211	sub override {
810	$override = 1;	1212	$override = 1;
811	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
812	}	1214	}
813		1215
814	sub do_invoke {	1216	sub do_invoke {
815	my $event = shift;	1217	my $event = shift;
816	my $callbacks = shift;	1218	my $callbacks = shift;
817		1219
818	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
819		1221
820	local $override;	1222	local $override;
821		1223
822	for (@$callbacks) {	1224	for (@$callbacks) {
823	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
824		1226
825	if ($@) {	1227	if ($@) {
826	warn "$@";
827	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
828	override;	1229	override;
829	}	1230	}
830		1231
831	return 1 if $override;	1232	return 1 if $override;
832	}	1233	}
833		1234
834	0	1235	0
835	}	1236	}
836		1237
837	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
838		1239
839	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
840		1241
841	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
842		1243
843	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1244	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
844	removed in future versions), and there is no public API to access override	1245	removed in future versions), and there is no public API to access override
845	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		1247
847	=back	1248	=back
848		1249
849	=cut	1250	=cut
850		1251
851	#############################################################################	1252	#############################################################################
852	# object support	1253	# object support
		1254
		1255	sub _object_equal($$);
		1256	sub _object_equal($$) {
		1257	my ($a, $b) = @_;
		1258
		1259	return 0 unless (ref $a) eq (ref $b);
		1260
		1261	if ("HASH" eq ref $a) {
		1262	my @ka = keys %$a;
		1263	my @kb = keys %$b;
		1264
		1265	return 0 if @ka != @kb;
		1266
		1267	for (0 .. $#ka) {
		1268	return 0 unless $ka[$_] eq $kb[$_];
		1269	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1270	}
		1271
		1272	} elsif ("ARRAY" eq ref $a) {
		1273
		1274	return 0 if @$a != @$b;
		1275
		1276	for (0 .. $#$a) {
		1277	return 0 unless _object_equal $a->[$_], $b->[$_];
		1278	}
		1279
		1280	} elsif ($a ne $b) {
		1281	return 0;
		1282	}
		1283
		1284	1
		1285	}
		1286
		1287	our $SLOW_MERGES;#d#
		1288	sub _can_merge {
		1289	my ($ob1, $ob2) = @_;
		1290
		1291	++$SLOW_MERGES;#d#
		1292
		1293	# we do the slow way here
		1294	return _object_equal $ob1, $ob2
		1295	}
853		1296
854	sub reattach {	1297	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	1299	my ($obj) = @_;
		1300
		1301	# no longer needed after getting rid of delete_package?
		1302	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		1303
858	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
859		1305
860	@$registry = ();	1306	@$registry = ();
861		1307
…		…
866	for (@$attach) {	1312	for (@$attach) {
867	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
868	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
869	}	1315	}
870	} else {	1316	} else {
871	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
872	}	1318	}
873	}	1319	}
874	}	1320	}
875		1321
876	cf::attachable->attach (	1322	cf::attachable->attach (
877	prio => -1000000,	1323	prio => -1000000,
878	on_instantiate => sub {	1324	on_instantiate => sub {
879	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
880		1326
881	$data = from_json $data;	1327	$data = decode_json $data;
882		1328
883	for (@$data) {	1329	for (@$data) {
884	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
885		1331
886	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
902	sub object_freezer_save {	1348	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
904		1350
905	sync_job {	1351	sync_job {
906	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
909		1357
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1361	if ($cf::USE_FSYNC) {
		1362	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;
913	aio_fsync $fh;	1363	aio_fsync $fh;
		1364	}
914	close $fh;	1365	aio_close $fh;
915		1366
916	if (@$objs) {	1367	if (@$objs) {
917	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1368	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
918	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
		1372	if ($cf::USE_FSYNC) {
		1373	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;
921	aio_fsync $fh;	1374	aio_fsync $fh;
		1375	}
922	close $fh;	1376	aio_close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
924	}	1378	}
925	} else {	1379	} else {
926	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
927	}	1381	}
928		1382
929	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
930	} else {	1387	} else {
931	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
932	}	1389	}
933	} else {	1390	} else {
934	aio_unlink $filename;	1391	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
936	}	1393	}
937	}	1394	};
938	}	1395	}
939		1396
940	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
942		1399
…		…
954	or return;	1411	or return;
955		1412
956	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
958	or return;	1415	or return;
		1416
959	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
960	}	1419	}
961		1420
		1421	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
964	return ($data, $av);	1426	($data, $av)
965	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
966		1434
967	#############################################################################	1435	#############################################################################
968	# command handling &c	1436	# command handling &c
969		1437
970	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
971		1439
972	Register a callback for execution when the client sends the user command	1440	Register a callback for execution when the client sends the user command
973	$name.	1441	$name.
974		1442
975	=cut	1443	=cut
…		…
981	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
982		1450
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1452	}
985		1453
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
987		1455
988	Register a callbackf ro execution when the client sends an extcmd packet.	1456	Register a callback for execution when the client sends an (synchronous)
		1457	extcmd packet. Ext commands will be processed in the order they are
		1458	received by the server, like other user commands. The first argument is
		1459	the logged-in player. Ext commands can only be processed after a player
		1460	has logged in successfully.
989		1461
990	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
991	called.
992		1463
993	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
994		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$reply> function.
		1468
		1469	=item cf::register_exticmd $name => \&callback($ns,@args)
		1470
		1471	Register a callback for execution when the client sends an (asynchronous)
		1472	exticmd packet. Exti commands are processed by the server as soon as they
		1473	are received, i.e. out of order w.r.t. other commands. The first argument
		1474	is a client socket. Exti commands can be received anytime, even before
		1475	log-in.
		1476
		1477	The values will be sent back to the client.
		1478
		1479	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1480
		1481	Same as C<cf::register_extcmd>, but instead of returning values, the
		1482	callback needs to clal the C<$reply> function.
		1483
		1484	=cut
		1485
995	sub register_extcmd {	1486	sub register_extcmd($$) {
996	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
997		1488
998	$EXTCMD{$name} = $cb;	1489	$EXTCMD{$name} = $cb;
999	}	1490	}
1000		1491
		1492	sub register_async_extcmd($$) {
		1493	my ($name, $cb) = @_;
		1494
		1495	$EXTACMD{$name} = $cb;
		1496	}
		1497
		1498	sub register_exticmd($$) {
		1499	my ($name, $cb) = @_;
		1500
		1501	$EXTICMD{$name} = $cb;
		1502	}
		1503
		1504	sub register_async_exticmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTIACMD{$name} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
		1511
1001	cf::player->attach (	1512	cf::player->attach (
1002	on_command => sub {	1513	on_unknown_command => sub {
1003	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
1004		1515
1005	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
1006	or return;	1517	or return;
1007		1518
…		…
1012	cf::override;	1523	cf::override;
1013	},	1524	},
1014	on_extcmd => sub {	1525	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
1016		1527
1017	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1529
1019	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1534	$cb->(
1022	$pl->ext_reply ($msg->{msgid}, %reply);	1535	$pl,
		1536	sub {
		1537	$pl->ext_msg ("reply-$reply", @_)
		1538	if $reply;
		1539	},
		1540	@payload
		1541	);
		1542	} else {
		1543	my @reply;
		1544
		1545	if (my $cb = $EXTCMD{$type}) {
		1546	@reply = $cb->($pl, @payload);
1023	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
1024	}	1551	}
		1552
1025	} else {	1553	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1555	}
1028		1556
1029	cf::override;	1557	cf::override;
1030	},	1558	},
1031	);	1559	);
1032		1560
		1561	# "readahead" all extensions
1033	sub load_extension {	1562	sub cache_extensions {
1034	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
1035		1564
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1037	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
1038	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1039	$pkg =~ s/[^[:word:]]/_/g;	1568	}
1040	$pkg = "ext::$pkg";	1569	};
1041		1570
1042	warn "... loading '$path' into '$pkg'\n";	1571	$grp
		1572	}
1043		1573
1044	open my $fh, "<:utf8", $path	1574	sub _ext_cfg_reg($$$$) {
1045	or die "$path: $!";	1575	my ($rvar, $varname, $cfgname, $default) = @_;
1046		1576
1047	my $source =	1577	$cfgname = lc $varname
1048	"package $pkg; use strict; use utf8;\n"	1578	unless length $cfgname;
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052		1579
1053	eval $source	1580	$EXT_CFG{$cfgname} = [$rvar, $default];
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056		1581
1057	push @EXTS, $pkg;	1582	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1058	}	1583	}
1059		1584
1060	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
1061	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1594	next unless -r $path;
1063	eval {	1595
1064	load_extension $ext;	1596	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1597	my $base = $1;
		1598	my $pkg = $1;
		1599	$pkg =~ s/[^[:word:]]/_/g;
		1600	$pkg = "ext::$pkg";
		1601
		1602	open my $fh, "<:utf8", $path
		1603	or die "$path: $!";
		1604
		1605	my $source = do { local $/; <$fh> };
		1606
		1607	my %ext = (
		1608	path => $path,
		1609	base => $base,
		1610	pkg => $pkg,
		1611	);
		1612
		1613	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1614	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1615
		1616	$ext{source} =
		1617	"package $pkg; use common::sense;\n"
		1618	. "#line 1 \"$path\"\n{\n"
		1619	. $source
		1620	. "\n};\n1";
		1621
		1622	$todo{$base} = \%ext;
		1623	}
		1624
		1625	my $pass = 0;
		1626	my %done;
		1627	while (%todo) {
		1628	my $progress;
		1629
		1630	++$pass;
		1631
		1632	ext:
		1633	while (my ($k, $v) = each %todo) {
		1634	for (split /,\s*/, $v->{meta}{depends}) {
		1635	next ext
		1636	unless exists $done{$_};
		1637	}
		1638
		1639	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1640
		1641	my $source = $v->{source};
		1642
		1643	# support "CONF varname :confname = default" pseudo-statements
		1644	$source =~ s{
		1645	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1646	}{
		1647	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1648	}gmxe;
		1649
		1650	my $active = eval $source;
		1651
		1652	if (length $@) {
		1653	error "$v->{path}: $@\n";
		1654
		1655	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1656	if exists $v->{meta}{mandatory};
		1657
		1658	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1659	delete $todo{$k};
		1660	} else {
		1661	$done{$k} = delete $todo{$k};
		1662	push @EXTS, $v->{pkg};
		1663	$progress = 1;
		1664
		1665	info "$v->{base}: extension inactive.\n"
		1666	unless $active;
		1667	}
1065	1	1668	}
1066	} or warn "$ext not loaded: $@";	1669
		1670	unless ($progress) {
		1671	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1672
		1673	while (my ($k, $v) = each %todo) {
		1674	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1675	if exists $v->{meta}{mandatory};
		1676	}
		1677
		1678	last;
		1679	}
		1680	}
1067	}	1681	};
1068	}	1682	}
1069		1683
1070	#############################################################################	1684	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1685
1073	*cf::mapsupport::on_clean = sub {	1686	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1687
1086	=head2 CORE EXTENSIONS	1688	=head2 CORE EXTENSIONS
1087		1689
1088	Functions and methods that extend core crossfire objects.	1690	Functions and methods that extend core deliantra objects.
1089		1691
1090	=cut	1692	=cut
1091		1693
1092	package cf::player;	1694	package cf::player;
1093		1695
…		…
1095		1697
1096	=head3 cf::player	1698	=head3 cf::player
1097		1699
1098	=over 4	1700	=over 4
1099		1701
		1702	=item cf::player::num_playing
		1703
		1704	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1705
		1706	=cut
		1707
		1708	sub num_playing {
		1709	scalar grep
		1710	$_->ob->map
		1711	&& !$_->hidden
		1712	&& !$_->ob->flag (cf::FLAG_WIZ),
		1713	cf::player::list
		1714	}
		1715
1100	=item cf::player::find $login	1716	=item cf::player::find $login
1101		1717
1102	Returns the given player object, loading it if necessary (might block).	1718	Returns the given player object, loading it if necessary (might block).
1103		1719
1104	=cut	1720	=cut
1105		1721
1106	sub playerdir($) {	1722	sub playerdir($) {
1107	cf::localdir	1723	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1724	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1725	}
1113		1726
1114	sub path($) {	1727	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1728	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1729
1117	(playerdir $login) . "/$login.pl"	1730	(playerdir $login) . "/playerdata"
1118	}	1731	}
1119		1732
1120	sub find_active($) {	1733	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1734	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1735	and $cf::PLAYER{$_[0]}->active
…		…
1125		1738
1126	sub exists($) {	1739	sub exists($) {
1127	my ($login) = @_;	1740	my ($login) = @_;
1128		1741
1129	$cf::PLAYER{$login}	1742	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1743	or !aio_stat path $login
1131	}	1744	}
1132		1745
1133	sub find($) {	1746	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1747	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1748	my $login = $_[0];
1136		1749
1137	my $guard = cf::lock_acquire "user_find:$login";	1750	my $guard = cf::lock_acquire "user_find:$login";
1138		1751
1139	$cf::PLAYER{$_[0]} || do {	1752	$cf::PLAYER{$_[0]} || do {
1140	my $pl = load_pl path $login	1753	# rename old playerfiles to new ones
		1754	#TODO: remove when no longer required
		1755	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1756	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1757	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1758	aio_unlink +(playerdir $login) . "/$login.pl";
		1759
		1760	my $f = new_from_file cf::object::thawer path $login
1141	or return;	1761	or return;
		1762
		1763	my $pl = cf::player::load_pl $f
		1764	or return;
		1765
		1766	local $cf::PLAYER_LOADING{$login} = $pl;
		1767	$f->resolve_delayed_derefs;
1142	$cf::PLAYER{$login} = $pl	1768	$cf::PLAYER{$login} = $pl
1143	}	1769	}
1144	}	1770	}
1145	}	1771	}
		1772
		1773	cf::player->attach (
		1774	on_load => sub {
		1775	my ($pl, $path) = @_;
		1776
		1777	# restore slots saved in save, below
		1778	my $slots = delete $pl->{_slots};
		1779
		1780	$pl->ob->current_weapon ($slots->[0]);
		1781	$pl->combat_ob ($slots->[1]);
		1782	$pl->ranged_ob ($slots->[2]);
		1783	},
		1784	);
1146		1785
1147	sub save($) {	1786	sub save($) {
1148	my ($pl) = @_;	1787	my ($pl) = @_;
1149		1788
1150	return if $pl->{deny_save};	1789	return if $pl->{deny_save};
…		…
1155	return if $pl->{deny_save};	1794	return if $pl->{deny_save};
1156		1795
1157	aio_mkdir playerdir $pl, 0770;	1796	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1797	$pl->{last_save} = $cf::RUNTIME;
1159		1798
		1799	cf::get_slot 0.01;
		1800
		1801	# save slots, to be restored later
		1802	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1803
1160	$pl->save_pl ($path);	1804	$pl->save_pl ($path);
1161	Coro::cede;	1805	cf::cede_to_tick;
1162	}	1806	}
1163		1807
1164	sub new($) {	1808	sub new($) {
1165	my ($login) = @_;	1809	my ($login) = @_;
1166		1810
…		…
1172	$cf::PLAYER{$login} = $self;	1816	$cf::PLAYER{$login} = $self;
1173		1817
1174	$self	1818	$self
1175	}	1819	}
1176		1820
		1821	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1822
		1823	=cut
		1824
		1825	sub send_msg {
		1826	my $ns = shift->ns
		1827	or return;
		1828	$ns->send_msg (@_);
		1829	}
		1830
1177	=item $pl->quit_character	1831	=item $pl->quit_character
1178		1832
1179	Nukes the player without looking back. If logged in, the connection will	1833	Nukes the player without looking back. If logged in, the connection will
1180	be destroyed. May block for a long time.	1834	be destroyed. May block for a long time.
1181		1835
1182	=cut	1836	=cut
1183		1837
1184	sub quit_character {	1838	sub quit_character {
1185	my ($pl) = @_;	1839	my ($pl) = @_;
1186		1840
		1841	my $name = $pl->ob->name;
		1842
1187	$pl->{deny_save} = 1;	1843	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1844	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1189		1845
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1191	$pl->deactivate;	1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1192	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
1193	$pl->ns->destroy if $pl->ns;	1853	$pl->ns->destroy if $pl->ns;
1194		1854
1195	my $path = playerdir $pl;	1855	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1856	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1857	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1858	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1859	$pl->destroy;
		1860
		1861	my $prefix = qr<^~\Q$name\E/>;
		1862
		1863	# nuke player maps
		1864	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1865
1200	IO::AIO::aio_rmtree $temp;	1866	IO::AIO::aio_rmtree $temp;
		1867	}
		1868
		1869	=item $pl->kick
		1870
		1871	Kicks a player out of the game. This destroys the connection.
		1872
		1873	=cut
		1874
		1875	sub kick {
		1876	my ($pl, $kicker) = @_;
		1877
		1878	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1879	$pl->killer ("kicked");
		1880	$pl->ns->destroy;
1201	}	1881	}
1202		1882
1203	=item cf::player::list_logins	1883	=item cf::player::list_logins
1204		1884
1205	Returns am arrayref of all valid playernames in the system, can take a	1885	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1886	while and may block, so not sync_job-capable, ever.
1207		1887
1208	=cut	1888	=cut
1209		1889
1210	sub list_logins {	1890	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1891	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1892	or return [];
1213		1893
1214	my @logins;	1894	my @logins;
1215		1895
1216	for my $login (@$dirs) {	1896	for my $login (@$dirs) {
		1897	my $path = path $login;
		1898
		1899	# a .pst is a dead give-away for a valid player
		1900	# if no pst file found, open and chekc for blocked users
		1901	if (aio_stat "$path.pst") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1903	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
1220		1906
1221	utf8::decode $login;	1907	utf8::decode $login;
1222	push @logins, $login;	1908	push @logins, $login;
1223	}	1909	}
1224		1910
1225	\@logins	1911	\@logins
1226	}	1912	}
1227		1913
1228	=item $player->maps	1914	=item $player->maps
1229		1915
		1916	=item cf::player::maps $login
		1917
1230	Returns an arrayref of cf::path's of all maps that are private for this	1918	Returns an arrayref of map paths that are private for this
1231	player. May block.	1919	player. May block.
1232		1920
1233	=cut	1921	=cut
1234		1922
1235	sub maps($) {	1923	sub maps($) {
1236	my ($pl) = @_;	1924	my ($pl) = @_;
		1925
		1926	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1927
1238	my $files = aio_readdir playerdir $pl	1928	my $files = aio_readdir playerdir $pl
1239	or return;	1929	or return;
1240		1930
1241	my @paths;	1931	my @paths;
…		…
1243	for (@$files) {	1933	for (@$files) {
1244	utf8::decode $_;	1934	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1935	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1936	next unless /^$PATH_SEP/o;
1247		1937
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1938	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1939	}
1250		1940
1251	\@paths	1941	\@paths
1252	}	1942	}
1253		1943
		1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1945
		1946	Expand deliantra pod fragments into protocol xml.
		1947
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1948	=item $player->ext_msg ($type, @msg)
1255		1949
1256	Sends an ext reply to the player.	1950	Sends an ext event to the client.
1257		1951
1258	=cut	1952	=cut
1259		1953
1260	sub ext_reply($$$%) {	1954	sub ext_msg($$@) {
1261	my ($self, $id, %msg) = @_;	1955	my ($self, $type, @msg) = @_;
1262		1956
1263	$msg{msgid} = $id;	1957	$self->ns->ext_msg ($type, @msg);
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1958	}
1267		1959
1268	package cf;	1960	=head3 cf::region
		1961
		1962	=over 4
		1963
		1964	=cut
		1965
		1966	package cf::region;
		1967
		1968	=item cf::region::find_by_path $path
		1969
		1970	Tries to decuce the likely region for a map knowing only its path.
		1971
		1972	=cut
		1973
		1974	sub find_by_path($) {
		1975	my ($path) = @_;
		1976
		1977	$path =~ s/^~[^\/]*//; # skip ~login
		1978
		1979	my ($match, $specificity);
		1980
		1981	for my $region (list) {
		1982	if ($region->{match} && $path =~ $region->{match}) {
		1983	($match, $specificity) = ($region, $region->specificity)
		1984	if $region->specificity > $specificity;
		1985	}
		1986	}
		1987
		1988	$match
		1989	}
1269		1990
1270	=back	1991	=back
1271
1272		1992
1273	=head3 cf::map	1993	=head3 cf::map
1274		1994
1275	=over 4	1995	=over 4
1276		1996
…		…
1279	package cf::map;	1999	package cf::map;
1280		2000
1281	use Fcntl;	2001	use Fcntl;
1282	use Coro::AIO;	2002	use Coro::AIO;
1283		2003
		2004	use overload
		2005	'""' => \&as_string,
		2006	fallback => 1;
		2007
1284	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1286		2010
1287	sub generate_random_map {	2011	sub generate_random_map {
		2012	my ($self, $rmp) = @_;
		2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
		2016	$self->_create_random_map ($rmp);
		2017	}
		2018
		2019	=item cf::map->register ($regex, $prio)
		2020
		2021	Register a handler for the map path matching the given regex at the
		2022	givne priority (higher is better, built-in handlers have priority 0, the
		2023	default).
		2024
		2025	=cut
		2026
		2027	sub register {
		2028	my (undef, $regex, $prio) = @_;
		2029	my $pkg = caller;
		2030
		2031	push @{"$pkg\::ISA"}, __PACKAGE__;
		2032
		2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2034	}
		2035
		2036	# also paths starting with '/'
		2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2038
		2039	sub thawer_merge {
		2040	my ($self, $merge) = @_;
		2041
		2042	# we have to keep some variables in memory intact
		2043	local $self->{path};
		2044	local $self->{load_path};
		2045
		2046	$self->SUPER::thawer_merge ($merge);
		2047	}
		2048
		2049	sub normalise {
1288	my ($path, $rmp) = @_;	2050	my ($path, $base) = @_;
1289		2051
1290	# mit "rum" bekleckern, nicht	2052	$path = "$path"; # make sure it's a string
1291	cf::map::_create_random_map (	2053
		2054	$path =~ s/\.map$//;
		2055
		2056	# map plan:
		2057	#
		2058	# /! non-realised random map exit (special hack!)
		2059	# {... are special paths that are not being touched
		2060	# ?xxx/... are special absolute paths
		2061	# ?random/... random maps
		2062	# /... normal maps
		2063	# ~user/... per-player map of a specific user
		2064
		2065	$path =~ s/$PATH_SEP/\//go;
		2066
		2067	# treat it as relative path if it starts with
		2068	# something that looks reasonable
		2069	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2070	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2071
		2072	$base =~ s{[^/]+/?$}{};
		2073	$path = "$base/$path";
		2074	}
		2075
		2076	for ($path) {
		2077	redo if s{/\.?/}{/};
		2078	redo if s{/[^/]+/\.\./}{/};
		2079	}
		2080
1292	$path,	2081	$path
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	2082	}
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	2083
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	2084	sub new_from_path {
1296	$rmp->{exit_on_final_map},	2085	my (undef, $path, $base) = @_;
1297	$rmp->{xsize}, $rmp->{ysize},	2086
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	2087	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	2088
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	2089	$path = normalise $path, $base;
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	2090
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	2091	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	2092	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2093	my $self = bless cf::map::new, $pkg;
		2094	$self->{path} = $path; $self->path ($path);
		2095	$self->init; # pass $1 etc.
		2096	return $self;
		2097	}
		2098	}
		2099
		2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
1304	)	2101	()
1305	}	2102	}
1306		2103
1307	# and all this just because we cannot iterate over	2104	# may re-bless or do other evil things
1308	# all maps in C++...	2105	sub init {
1309	sub change_all_map_light {
1310	my ($change) = @_;	2106	my ($self) = @_;
1311		2107
1312	$_->change_map_light ($change)	2108	$self
1313	for grep $_->outdoor, values %cf::MAP;
1314	}	2109	}
1315		2110
		2111	sub as_string {
		2112	my ($self) = @_;
		2113
		2114	"$self->{path}"
		2115	}
		2116
		2117	# the displayed name, this is a one way mapping
		2118	sub visible_name {
		2119	&as_string
		2120	}
		2121
		2122	# the original (read-only) location
		2123	sub load_path {
		2124	my ($self) = @_;
		2125
		2126	"$MAPDIR/$self->{path}.map"
		2127	}
		2128
		2129	# the temporary/swap location
		2130	sub save_path {
		2131	my ($self) = @_;
		2132
		2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2134	"$TMPDIR/$path.map"
		2135	}
		2136
		2137	# the unique path, undef == no special unique path
		2138	sub uniq_path {
		2139	my ($self) = @_;
		2140
		2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2142	"$UNIQUEDIR/$path"
		2143	}
		2144
		2145	sub decay_objects {
		2146	my ($self) = @_;
		2147
		2148	return if $self->{deny_reset};
		2149
		2150	$self->do_decay_objects;
		2151	}
		2152
		2153	sub unlink_save {
		2154	my ($self) = @_;
		2155
		2156	utf8::encode (my $save = $self->save_path);
		2157	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2158	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2159	}
		2160
1316	sub load_map_header($) {	2161	sub load_header_from($) {
1317	my ($path) = @_;	2162	my ($self, $path) = @_;
1318		2163
1319	utf8::encode $path;	2164	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1321	or return;	2166	or return;
1322		2167
1323	my $map = cf::map::new	2168	$self->_load_header ($f)
1324	or return;	2169	or return;
1325		2170
1326	# for better error messages only, will be overwritten later	2171	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	2172	$f->resolve_delayed_derefs;
1328		2173
1329	$map->load_header ($path)	2174	$self->{load_path} = $path;
		2175
		2176	1
		2177	}
		2178
		2179	# used to laod the header of an original map
		2180	sub load_header_orig {
		2181	my ($self) = @_;
		2182
		2183	$self->load_header_from ($self->load_path)
		2184	}
		2185
		2186	# used to laod the header of an instantiated map
		2187	sub load_header_temp {
		2188	my ($self) = @_;
		2189
		2190	$self->load_header_from ($self->save_path)
		2191	}
		2192
		2193	# called after loading the header from an instantiated map
		2194	sub prepare_temp {
		2195	my ($self) = @_;
		2196
		2197	$self->last_access ((delete $self->{last_access})
		2198	|| $cf::RUNTIME); #d#
		2199	# safety
		2200	$self->{instantiate_time} = $cf::RUNTIME
		2201	if $self->{instantiate_time} > $cf::RUNTIME;
		2202	}
		2203
		2204	# called after loading the header from an original map
		2205	sub prepare_orig {
		2206	my ($self) = @_;
		2207
		2208	$self->{load_original} = 1;
		2209	$self->{instantiate_time} = $cf::RUNTIME;
		2210	$self->last_access ($cf::RUNTIME);
		2211	$self->instantiate;
		2212	}
		2213
		2214	sub load_header {
		2215	my ($self) = @_;
		2216
		2217	if ($self->load_header_temp) {
		2218	$self->prepare_temp;
		2219	} else {
		2220	$self->load_header_orig
1330	or return;	2221	or return;
		2222	$self->prepare_orig;
		2223	}
1331		2224
1332	$map->{load_path} = $path;	2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
1333		2227
1334	$map	2228	$self->default_region (cf::region::find_by_path $self->{path})
		2229	unless $self->default_region;
		2230
		2231	1
1335	}	2232	}
1336		2233
1337	sub find;	2234	sub find;
1338	sub find {	2235	sub find {
1339	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1340		2237
1341	#warn "find<$path,$origin>\n";#d#	2238	cf::cede_to_tick;
1342		2239
1343	$path = new cf::path $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1344	my $key = $path->as_string;
1345		2241
1346	cf::lock_wait "map_find:$key";	2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1347
1348	$cf::MAP{$key} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1350		2244
1351	# do it the slow way	2245	$cf::MAP{$path} || do {
1352	my $map = $path->load_temp;	2246	my $map = new_from_path cf::map $path
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	2247	or return;
1365		2248
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1378		2250
1379	Coro::cede;	2251	$map->load_header
		2252	or return;
1380		2253
1381	if ($map->should_reset) {	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2255	# doing this can freeze the server in a sync job, obviously
		2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1382	$map->reset;	2259	$map->reset;
1383	undef $guard;
1384	$map = find $path	2260	return find $path;
1385	or return;
1386	}	2261	}
1387		2262
1388	$cf::MAP{$key} = $map	2263	$cf::MAP{$path} = $map
1389	}	2264	}
1390	}	2265	}
		2266
		2267	sub pre_load { }
		2268	#sub post_load { } # XS
1391		2269
1392	sub load {	2270	sub load {
1393	my ($self) = @_;	2271	my ($self) = @_;
1394		2272
		2273	local $self->{deny_reset} = 1; # loading can take a long time
		2274
1395	my $path = $self->{path};	2275	my $path = $self->{path};
		2276
		2277	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2278	my $guard = cf::lock_acquire "map_data:$path";
1397		2279
1398	return if $self->in_memory != cf::MAP_SWAPPED;	2280	return unless $self->valid;
		2281	return unless $self->state == cf::MAP_SWAPPED;
1399		2282
1400	$self->in_memory (cf::MAP_LOADING);
1401
1402	$self->alloc;	2283	$self->alloc;
1403	$self->load_objects ($self->{load_path}, 1)	2284
		2285	$self->pre_load;
		2286	cf::cede_to_tick;
		2287
		2288	if (exists $self->{load_path}) {
		2289	my $f = new_from_file cf::object::thawer $self->{load_path};
		2290	$f->skip_block;
		2291	$self->_load_objects ($f)
1404	or return;	2292	or return;
1405		2293
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1407	if delete $self->{load_original};	2295	if delete $self->{load_original};
1408		2296
1409	if (my $uniq = $path->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	2298	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	2301	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1414	}	2306	}
1415	}
1416		2307
1417	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
1418		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1419	# now do the right thing for maps	2317	# now do the right thing for maps
1420	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	2320	unless $self->difficulty;
1432	$self->activate;	2321	cf::cede_to_tick;
		2322
		2323	unless ($self->{deny_activate}) {
		2324	$self->decay_objects;
		2325	$self->fix_auto_apply;
		2326	$self->update_buttons;
		2327	cf::cede_to_tick;
		2328	#$self->activate; # no longer activate maps automatically
		2329	}
		2330
		2331	$self->{last_save} = $cf::RUNTIME;
		2332	$self->last_access ($cf::RUNTIME);
		2333	}
		2334
		2335	$self->post_load;
		2336
1433	}	2337	1
1434
1435	Coro::cede;
1436
1437	$self->in_memory (cf::MAP_IN_MEMORY);
1438	}	2338	}
1439		2339
1440	# find and load all maps in the 3x3 area around a map	2340	# customize the map for a given player, i.e.
1441	sub load_diag {	2341	# return the _real_ map. used by e.g. per-player
1442	my ($map) = @_;	2342	# maps to change the path to ~playername/mappath
		2343	sub customise_for {
		2344	my ($self, $ob) = @_;
1443		2345
1444	my @diag; # diagonal neighbours	2346	return find "~" . $ob->name . "/" . $self->{path}
		2347	if $self->per_player;
1445		2348
1446	for (0 .. 3) {	2349	# return find "?party/" . $ob->name . "/" . $self->{path}
1447	my $neigh = $map->tile_path ($_)	2350	# if $self->per_party;
1448	or next;
1449	$neigh = find $neigh, $map
1450	or next;
1451	$neigh->load;
1452		2351
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2352	$self
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}
1456
1457	for (@diag) {
1458	my $neigh = find @$_
1459	or next;
1460	$neigh->load;
1461	}
1462	}	2353	}
1463		2354
1464	sub find_sync {	2355	sub find_sync {
1465	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1466		2357
1467	cf::sync_job { find $path, $origin }	2358	# it's a bug to call this from the main context
		2359	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2360	if $Coro::current == $Coro::main;
		2361
		2362	find $path, $origin
1468	}	2363	}
1469		2364
1470	sub do_load_sync {	2365	sub do_load_sync {
1471	my ($map) = @_;	2366	my ($map) = @_;
1472		2367
1473	cf::sync_job { $map->load };	2368	# it's a bug to call this from the main context
		2369	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2370	if $Coro::current == $Coro::main;
		2371
		2372	$map->load;
1474	}	2373	}
1475		2374
1476	our %MAP_PREFETCH;	2375	our %MAP_PREFETCH;
		2376	our $MAP_PREFETCHER = undef;
		2377
		2378	sub find_async {
		2379	my ($path, $origin, $load) = @_;
		2380
		2381	$path = normalise $path, $origin;
		2382
		2383	if (my $map = $cf::MAP{$path}) {
		2384	return $map if !$load || $map->linkable;
		2385	}
		2386
		2387	$MAP_PREFETCH{$path} |= $load;
		2388
1477	our $MAP_PREFETCHER = Coro::async {	2389	$MAP_PREFETCHER ||= cf::async {
1478	while () {	2390	$Coro::current->{desc} = "map prefetcher";
		2391
1479	while (%MAP_PREFETCH) {	2392	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2393	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2394	if (my $map = find $k) {
		2395	$map->load if $v;
		2396	}
		2397
1482	my $path = delete $MAP_PREFETCH{$key};	2398	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2399	}
1488	Coro::schedule;	2400	}
		2401	undef $MAP_PREFETCHER;
1489	}	2402	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2403	$MAP_PREFETCHER->prio (6);
1504		2404
1505	()	2405	()
		2406	}
		2407
		2408	# common code, used by both ->save and ->swapout
		2409	sub _save {
		2410	my ($self) = @_;
		2411
		2412	$self->{last_save} = $cf::RUNTIME;
		2413
		2414	return unless $self->dirty;
		2415
		2416	my $save = $self->save_path; utf8::encode $save;
		2417	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2418
		2419	$self->{load_path} = $save;
		2420
		2421	return if $self->{deny_save};
		2422
		2423	local $self->{last_access} = $self->last_access;#d#
		2424
		2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
		2427	$_->contr->save for $self->players;
		2428	};
		2429
		2430	cf::get_slot 0.02;
		2431
		2432	if ($uniq) {
		2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2435	} else {
		2436	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2437	}
1506	}	2438	}
1507		2439
1508	sub save {	2440	sub save {
1509	my ($self) = @_;	2441	my ($self) = @_;
1510		2442
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2444
1513	$self->{last_save} = $cf::RUNTIME;	2445	$self->_save;
1514
1515	return unless $self->dirty;
1516
1517	my $save = $self->{path}->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1519
1520	$self->{load_path} = $save;
1521
1522	return if $self->{deny_save};
1523
1524	local $self->{last_access} = $self->last_access;#d#
1525
1526	cf::async {
1527	$_->contr->save for $self->players;
1528	};
1529
1530	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}
1536	}	2446	}
1537		2447
1538	sub swap_out {	2448	sub swap_out {
1539	my ($self) = @_;	2449	my ($self) = @_;
1540		2450
1541	# save first because save cedes
1542	$self->save;
1543
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1546	return if $self->players;	2455	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;
1548	return if $self->{deny_save};
1549		2456
		2457	# first deactivate the map and "unlink" it from the core
		2458	$self->deactivate;
		2459	$_->clear_links_to ($self) for values %cf::MAP;
		2460	$self->state (cf::MAP_SWAPPED);
		2461
		2462	# then atomically save
		2463	$self->_save;
		2464
		2465	# then free the map
1550	$self->clear;	2466	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2467	}
1553		2468
1554	sub reset_at {	2469	sub reset_at {
1555	my ($self) = @_;	2470	my ($self) = @_;
1556		2471
1557	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1560		2474
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2476	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2477
…		…
1568	my ($self) = @_;	2482	my ($self) = @_;
1569		2483
1570	$self->reset_at <= $cf::RUNTIME	2484	$self->reset_at <= $cf::RUNTIME
1571	}	2485	}
1572		2486
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2487	sub reset {
1587	my ($self) = @_;	2488	my ($self) = @_;
1588		2489
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2491
1591	return if $self->players;	2492	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2493
1594	warn "resetting map ", $self->path;#d#	2494	cf::trace "resetting map ", $self->path, "\n";
		2495
		2496	$self->state (cf::MAP_SWAPPED);
		2497
		2498	# need to save uniques path
		2499	unless ($self->{deny_save}) {
		2500	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2501
		2502	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2503	if $uniq;
		2504	}
1595		2505
1596	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1597		2507
		2508	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2509	$_->clear_links_to ($self) for values %cf::MAP;
		2510	$self->clear;
1599		2511
1600	$self->{path}->unlink_save;	2512	$self->unlink_save;
1601	$self->destroy;	2513	$self->destroy;
1602	}	2514	}
1603		2515
1604	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1605		2517
1606	sub nuke {	2518	sub nuke {
1607	my ($self) = @_;	2519	my ($self) = @_;
1608		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
		2524	delete $cf::MAP{$self->path};
		2525
		2526	$self->unlink_save;
		2527
		2528	bless $self, "cf::map::wrap";
		2529	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2533
		2534	$cf::MAP{$self->path} = $self;
		2535	}
		2536
1612	$self->reset; # polite request, might not happen	2537	$self->reset; # polite request, might not happen
1613	}	2538	}
1614		2539
		2540	=item $maps = cf::map::tmp_maps
		2541
		2542	Returns an arrayref with all map paths of currently instantiated and saved
		2543	maps. May block.
		2544
		2545	=cut
		2546
		2547	sub tmp_maps() {
		2548	[
		2549	map {
		2550	utf8::decode $_;
		2551	/\.map$/
		2552	? normalise $_
		2553	: ()
		2554	} @{ aio_readdir $TMPDIR or [] }
		2555	]
		2556	}
		2557
		2558	=item $maps = cf::map::random_maps
		2559
		2560	Returns an arrayref with all map paths of currently instantiated and saved
		2561	random maps. May block.
		2562
		2563	=cut
		2564
		2565	sub random_maps() {
		2566	[
		2567	map {
		2568	utf8::decode $_;
		2569	/\.map$/
		2570	? normalise "?random/$_"
		2571	: ()
		2572	} @{ aio_readdir $RANDOMDIR or [] }
		2573	]
		2574	}
		2575
1615	=item cf::map::unique_maps	2576	=item cf::map::unique_maps
1616		2577
1617	Returns an arrayref of cf::path's of all shared maps that have	2578	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2579	instantiated unique items. May block.
1619		2580
1620	=cut	2581	=cut
1621		2582
1622	sub unique_maps() {	2583	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2584	[
1624	or return;	2585	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2586	utf8::decode $_;
1630	next if /\.pst$/;	2587	s/\.map$//; # TODO future compatibility hack
1631	next unless /^$PATH_SEP/o;	2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1632		2589	? ()
1633	push @paths, new cf::path $_;	2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2592	]
1635
1636	\@paths
1637	}	2593	}
1638		2594
1639	package cf;	2595	=item cf::map::static_maps
		2596
		2597	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2598	file in the shared directory excluding F</styles> and F</editor>). May
		2599	block.
		2600
		2601	=cut
		2602
		2603	sub static_maps() {
		2604	my @dirs = "";
		2605	my @maps;
		2606
		2607	while (@dirs) {
		2608	my $dir = shift @dirs;
		2609
		2610	next if $dir eq "/styles" || $dir eq "/editor";
		2611
		2612	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2613	or return;
		2614
		2615	for (@$files) {
		2616	s/\.map$// or next;
		2617	utf8::decode $_;
		2618	push @maps, "$dir/$_";
		2619	}
		2620
		2621	push @dirs, map "$dir/$_", @$dirs;
		2622	}
		2623
		2624	\@maps
		2625	}
1640		2626
1641	=back	2627	=back
1642		2628
1643	=head3 cf::object	2629	=head3 cf::object
1644		2630
…		…
1648		2634
1649	=over 4	2635	=over 4
1650		2636
1651	=item $ob->inv_recursive	2637	=item $ob->inv_recursive
1652		2638
1653	Returns the inventory of the object _and_ their inventories, recursively.	2639	Returns the inventory of the object I<and> their inventories, recursively,
		2640	but I<not> the object itself.
1654		2641
1655	=cut	2642	=cut
1656		2643
1657	sub inv_recursive_;	2644	sub inv_recursive_;
1658	sub inv_recursive_ {	2645	sub inv_recursive_ {
…		…
1661		2648
1662	sub inv_recursive {	2649	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	2650	inv_recursive_ inv $_[0]
1664	}	2651	}
1665		2652
		2653	=item $ref = $ob->ref
		2654
		2655	Creates and returns a persistent reference to an object that can be stored as a string.
		2656
		2657	=item $ob = cf::object::deref ($refstring)
		2658
		2659	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2660	even if the object actually exists. May block.
		2661
		2662	=cut
		2663
		2664	sub deref {
		2665	my ($ref) = @_;
		2666
		2667	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2668	my ($uuid, $name) = ($1, $2);
		2669	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2670	or return;
		2671	$pl->ob->uuid eq $uuid
		2672	or return;
		2673
		2674	$pl->ob
		2675	} else {
		2676	warn "$ref: cannot resolve object reference\n";
		2677	undef
		2678	}
		2679	}
		2680
1666	package cf;	2681	package cf;
1667		2682
1668	=back	2683	=back
1669		2684
1670	=head3 cf::object::player	2685	=head3 cf::object::player
…		…
1676	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2691	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1677	can be C<undef>. Does the right thing when the player is currently in a	2692	can be C<undef>. Does the right thing when the player is currently in a
1678	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1679		2694
1680	=cut	2695	=cut
		2696
		2697	our $SAY_CHANNEL = {
		2698	id => "say",
		2699	title => "Map",
		2700	reply => "say ",
		2701	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2702	};
		2703
		2704	our $CHAT_CHANNEL = {
		2705	id => "chat",
		2706	title => "Chat",
		2707	reply => "chat ",
		2708	tooltip => "Player chat and shouts, global to the server.",
		2709	};
1681		2710
1682	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1683	# with dialog boxes.	2712	# with dialog boxes.
1684	#TODO: the first argument must go, split into a $npc->reply_to ( method	2713	#TODO: the first argument must go, split into a $npc->reply_to ( method
1685	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1687		2716
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2718
1690	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1692	} else {	2722	} else {
		2723	my $pl = $self->contr;
		2724
		2725	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2726	my $dialog = $pl->{npc_dialog};
		2727	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2728
		2729	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1695	}	2733	}
		2734	}
		2735
		2736	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2737
		2738	=cut
		2739
		2740	sub cf::object::send_msg {
		2741	my $pl = shift->contr
		2742	or return;
		2743	$pl->send_msg (@_);
1696	}	2744	}
1697		2745
1698	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1699		2747
1700	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1713		2761
1714	=item $player_object->enter_link	2762	=item $player_object->enter_link
1715		2763
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2764	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2765
1718	The player should be reaosnably safe there for short amounts of time. You	2766	The player should be reasonably safe there for short amounts of time (e.g.
1719	I<MUST> call C<leave_link> as soon as possible, though.	2767	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2768	though, as the player cannot control the character while it is on the link
		2769	map.
		2770
		2771	Will never block.
1720		2772
1721	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1722		2774
1723	Moves the player out of the specila link map onto the given map. If the	2775	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2776	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2777	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2778	fails, to the emergency map position.
1727		2779
1728	Might block.	2780	Might block.
1729		2781
1730	=cut	2782	=cut
		2783
		2784	sub link_map {
		2785	unless ($LINK_MAP) {
		2786	$LINK_MAP = cf::map::find "{link}"
		2787	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2788	$LINK_MAP->load;
		2789	}
		2790
		2791	$LINK_MAP
		2792	}
1731		2793
1732	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2795	my ($self) = @_;
1734		2796
1735	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1736		2798
1737	return if $self->map == $LINK_MAP;	2799	++$self->{_link_recursion};
		2800
		2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2802
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1741		2805
1742	$self->enter_map ($LINK_MAP, 20, 20);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1743	}	2807	}
1744		2808
1745	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1747		2813
1748	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1749		2815
1750	unless ($map) {	2816	unless ($map) {
1751	# restore original map position	2817	# restore original map position
…		…
1762	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1763	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1764		2830
1765	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1768		2834
1769	$map->load;	2835	$map->load;
1770	$map->load_diag;
1771		2836
1772	return unless $self->contr->active;	2837	return unless $self->contr->active;
		2838
		2839	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2840	if ($self->enter_map ($map, $x, $y)) {
		2841	# entering was successful
		2842	delete $self->{_link_recursion};
		2843	# only activate afterwards, to support waiting in hooks
1773	$self->activate_recursive;	2844	$self->activate_recursive;
1774	$self->enter_map ($map, $x, $y);
1775	}
1776
1777	cf::player->attach (
1778	on_logout => sub {
1779	my ($pl) = @_;
1780
1781	# abort map switching before logout
1782	if ($pl->ob->{_link_pos}) {
1783	cf::sync_job {
1784	$pl->ob->leave_link
1785	};
1786	}
1787	},	2845	}
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2846
1791	# try to abort aborted map switching on player login :)	2847	}
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808		2848
1809	=item $player_object->goto ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1810		2850
		2851	Moves the player to the given map-path and coordinates by first freezing
		2852	her, loading and preparing them map, calling the provided $check callback
		2853	that has to return the map if sucecssful, and then unfreezes the player on
		2854	the new (success) or old (failed) map position. In either case, $done will
		2855	be called at the end of this process.
		2856
		2857	Note that $check will be called with a potentially non-loaded map, so if
		2858	it needs a loaded map it has to call C<< ->load >>.
		2859
1811	=cut	2860	=cut
		2861
		2862	our $GOTOGEN;
1812		2863
1813	sub cf::object::player::goto {	2864	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2865	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2866
1816	$path = new cf::path $path;	2867	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2868	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2869	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2870	($path, $x, $y) = @$EMERGENCY_POSITION;
		2871	}
		2872
		2873	# do generation counting so two concurrent goto's will be executed in-order
		2874	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2875
1818	$self->enter_link;	2876	$self->enter_link;
1819		2877
1820	(async {	2878	(async {
1821	my $map = cf::map::find $path->as_string;	2879	$Coro::current->{desc} = "player::goto $path $x $y";
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2880
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2881	# *tag paths override both path and x|y
		2882	if ($path =~ /^\*(.*)$/) {
		2883	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2884	my $ob = $obs[rand @obs];
		2885
		2886	# see if we actually can go there
		2887	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2888	$ob = $obs[rand @obs];
		2889	} else {
		2890	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2891	}
		2892	# else put us there anyways for now #d#
		2893
		2894	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2895	} else {
		2896	($path, $x, $y) = (undef, undef, undef);
		2897	}
		2898	}
		2899
		2900	my $map = eval {
		2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
1825	# if $map;	2903	if ($map) {
1826		2904	$map = $map->customise_for ($self);
		2905	$map = $check->($map, $x, $y, $self) if $check && $map;
		2906	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2907	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2908	}
1828		2909
		2910	$map
		2911	};
		2912
		2913	if ($@) {
		2914	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2915	LOG llevError | logBacktrace, Carp::longmess $@;
		2916	}
		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1830	})->prio (1);	2924	})->prio (1);
1831	}	2925	}
1832		2926
1833	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
1834		2928
…		…
1836		2930
1837	sub parse_random_map_params {	2931	sub parse_random_map_params {
1838	my ($spec) = @_;	2932	my ($spec) = @_;
1839		2933
1840	my $rmp = { # defaults	2934	my $rmp = { # defaults
1841	xsize => 10,	2935	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2936	ysize => (cf::rndm 15, 40),
		2937	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2938	#layout => string,
1843	};	2939	};
1844		2940
1845	for (split /\n/, $spec) {	2941	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2942	my ($k, $v) = split /\s+/, $_, 2;
1847		2943
…		…
1859	# that depends on the exit object	2955	# that depends on the exit object
1860		2956
1861	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
1862		2958
1863	if ($exit->map) {	2959	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2960	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
1868	}	2966	}
1869		2967
1870	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
1871		2969
1872	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1873	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
		2972	my $meta = "$RANDOMDIR/$md5.meta";
1874		2973
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
		2976	undef $fh;
		2977	aio_rename "$meta~", $meta;
1877		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
1878	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
1880	}	2985	}
1881	}	2986	}
1882		2987
1883	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
…		…
1886	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
1887		2992
1888	$self->enter_link;	2993	$self->enter_link;
1889		2994
1890	(async {	2995	(async {
1891	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
1892	unless (eval {	2998	unless (eval {
		2999	$self->deactivate_recursive; # just to be sure
		3000
		3001	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3002	my $x = $exit->stats->hp;
		3003	my $y = $exit->stats->sp;
		3004
		3005	# special map handling
		3006	my $slaying = $exit->slaying;
		3007
		3008	# special map handling
		3009	if ($slaying eq "/!") {
		3010	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3011
1893	prepare_random_map $exit	3012	prepare_random_map $exit
		3013	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3014
1894	if $exit->slaying eq "/!";	3015	$map = $exit->slaying;
1895		3016
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3017	} elsif ($slaying eq '!up') {
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3018	$map = $exit->map->tile_path (cf::TILE_UP);
		3019	$x = $exit->x;
		3020	$y = $exit->y;
1898		3021
		3022	} elsif ($slaying eq '!down') {
		3023	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3024	$x = $exit->x;
		3025	$y = $exit->y;
		3026	}
		3027
		3028	$self->goto ($map, $x, $y);
		3029
		3030	# if exit is damned, update players death & WoR home-position
		3031	$self->contr->savebed ($map, $x, $y)
		3032	if $exit->flag (cf::FLAG_DAMNED);
		3033
1899	1;	3034	1
1900	}) {	3035	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
1902	. "I'll try to bring you back to the map you were before. "	3037	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	3038	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
1905		3040
1906	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
1907	$self->leave_link;	3042	$self->leave_link;
1908	}	3043	}
1909	})->prio (1);	3044	})->prio (1);
1910	}	3045	}
1911		3046
…		…
1922		3057
1923	sub cf::client::send_drawinfo {	3058	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	3059	my ($self, $text, $flags) = @_;
1925		3060
1926	utf8::encode $text;	3061	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3062	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	3063	}
1929		3064
		3065	=item $client->send_big_packet ($pkt)
		3066
		3067	Like C<send_packet>, but tries to compress large packets, and fragments
		3068	them as required.
		3069
		3070	=cut
		3071
		3072	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3073
		3074	sub cf::client::send_big_packet {
		3075	my ($self, $pkt) = @_;
		3076
		3077	# try lzf for large packets
		3078	$pkt = "lzf " . Compress::LZF::compress $pkt
		3079	if 1024 <= length $pkt and $self->{can_lzf};
		3080
		3081	# split very large packets
		3082	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3083	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3084	$pkt = "frag";
		3085	}
		3086
		3087	$self->send_packet ($pkt);
		3088	}
		3089
		3090	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3091
		3092	Send a drawinfo or msg packet to the client, formatting the msg for the
		3093	client if neccessary. C<$type> should be a string identifying the type of
		3094	the message, with C<log> being the default. If C<$color> is negative, suppress
		3095	the message unless the client supports the msg packet.
		3096
		3097	=cut
		3098
		3099	# non-persistent channels (usually the info channel)
		3100	our %CHANNEL = (
		3101	"c/motd" => {
		3102	id => "infobox",
		3103	title => "MOTD",
		3104	reply => undef,
		3105	tooltip => "The message of the day",
		3106	},
		3107	"c/identify" => {
		3108	id => "infobox",
		3109	title => "Identify",
		3110	reply => undef,
		3111	tooltip => "Items recently identified",
		3112	},
		3113	"c/examine" => {
		3114	id => "infobox",
		3115	title => "Examine",
		3116	reply => undef,
		3117	tooltip => "Signs and other items you examined",
		3118	},
		3119	"c/shopinfo" => {
		3120	id => "infobox",
		3121	title => "Shop Info",
		3122	reply => undef,
		3123	tooltip => "What your bargaining skill tells you about the shop",
		3124	},
		3125	"c/book" => {
		3126	id => "infobox",
		3127	title => "Book",
		3128	reply => undef,
		3129	tooltip => "The contents of a note or book",
		3130	},
		3131	"c/lookat" => {
		3132	id => "infobox",
		3133	title => "Look",
		3134	reply => undef,
		3135	tooltip => "What you saw there",
		3136	},
		3137	"c/who" => {
		3138	id => "infobox",
		3139	title => "Players",
		3140	reply => undef,
		3141	tooltip => "Shows players who are currently online",
		3142	},
		3143	"c/body" => {
		3144	id => "infobox",
		3145	title => "Body Parts",
		3146	reply => undef,
		3147	tooltip => "Shows which body parts you posess and are available",
		3148	},
		3149	"c/statistics" => {
		3150	id => "infobox",
		3151	title => "Statistics",
		3152	reply => undef,
		3153	tooltip => "Shows your primary statistics",
		3154	},
		3155	"c/skills" => {
		3156	id => "infobox",
		3157	title => "Skills",
		3158	reply => undef,
		3159	tooltip => "Shows your experience per skill and item power",
		3160	},
		3161	"c/shopitems" => {
		3162	id => "infobox",
		3163	title => "Shop Items",
		3164	reply => undef,
		3165	tooltip => "Shows the items currently for sale in this shop",
		3166	},
		3167	"c/resistances" => {
		3168	id => "infobox",
		3169	title => "Resistances",
		3170	reply => undef,
		3171	tooltip => "Shows your resistances",
		3172	},
		3173	"c/pets" => {
		3174	id => "infobox",
		3175	title => "Pets",
		3176	reply => undef,
		3177	tooltip => "Shows information abotu your pets/a specific pet",
		3178	},
		3179	"c/perceiveself" => {
		3180	id => "infobox",
		3181	title => "Perceive Self",
		3182	reply => undef,
		3183	tooltip => "You gained detailed knowledge about yourself",
		3184	},
		3185	"c/uptime" => {
		3186	id => "infobox",
		3187	title => "Uptime",
		3188	reply => undef,
		3189	tooltip => "How long the server has been running since last restart",
		3190	},
		3191	"c/mapinfo" => {
		3192	id => "infobox",
		3193	title => "Map Info",
		3194	reply => undef,
		3195	tooltip => "Information related to the maps",
		3196	},
		3197	"c/party" => {
		3198	id => "party",
		3199	title => "Party",
		3200	reply => "gsay ",
		3201	tooltip => "Messages and chat related to your party",
		3202	},
		3203	"c/death" => {
		3204	id => "death",
		3205	title => "Death",
		3206	reply => undef,
		3207	tooltip => "Reason for and more info about your most recent death",
		3208	},
		3209	"c/say" => $SAY_CHANNEL,
		3210	"c/chat" => $CHAT_CHANNEL,
		3211	);
		3212
		3213	sub cf::client::send_msg {
		3214	my ($self, $channel, $msg, $color, @extra) = @_;
		3215
		3216	$msg = $self->pl->expand_cfpod ($msg)
		3217	unless $color & cf::NDI_VERBATIM;
		3218
		3219	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3220
		3221	# check predefined channels, for the benefit of C
		3222	if ($CHANNEL{$channel}) {
		3223	$channel = $CHANNEL{$channel};
		3224
		3225	$self->ext_msg (channel_info => $channel);
		3226	$channel = $channel->{id};
		3227
		3228	} elsif (ref $channel) {
		3229	# send meta info to client, if not yet sent
		3230	unless (exists $self->{channel}{$channel->{id}}) {
		3231	$self->{channel}{$channel->{id}} = $channel;
		3232	$self->ext_msg (channel_info => $channel);
		3233	}
		3234
		3235	$channel = $channel->{id};
		3236	}
		3237
		3238	return unless @extra || length $msg;
		3239
		3240	# default colour, mask it out
		3241	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3242	if $color & cf::NDI_DEF;
		3243
		3244	my $pkt = "msg "
		3245	. $self->{json_coder}->encode (
		3246	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3247	);
		3248
		3249	$self->send_big_packet ($pkt);
		3250	}
		3251
		3252	=item $client->ext_msg ($type, @msg)
		3253
		3254	Sends an ext event to the client.
		3255
		3256	=cut
		3257
		3258	sub cf::client::ext_msg($$@) {
		3259	my ($self, $type, @msg) = @_;
		3260
		3261	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3262	}
1930		3263
1931	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
1932		3265
1933	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3267	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3268	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		3269
1937	Queries can fail, so check the return code. Or don't, as queries will become	3270	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	3271	become reliable at some point in the future.
1939		3272
1940	=cut	3273	=cut
1941		3274
1942	sub cf::client::query {	3275	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	3284	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		3286
1954	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
1956	}	3291	}
1957		3292
1958	cf::client->attach (	3293	cf::client->attach (
		3294	on_connect => sub {
		3295	my ($ns) = @_;
		3296
		3297	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3298	},
1959	on_reply => sub {	3299	on_reply => sub {
1960	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
1961		3301
1962	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
1963	# get handled first	3303	# get handled first
1964	my $queue = delete $ns->{query_queue}	3304	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	3305	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		3306
1967	(shift @$queue)->[1]->($msg);	3307	(shift @$queue)->[1]->($msg);
		3308	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		3309
1969	push @{ $ns->{query_queue} }, @$queue;	3310	push @{ $ns->{query_queue} }, @$queue;
1970		3311
1971	if (@{ $ns->{query_queue} } == @$queue) {	3312	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	3313	if (@$queue) {
…		…
1974	} else {	3315	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	3317	}
1977	}	3318	}
1978	},	3319	},
		3320	on_exticmd => sub {
		3321	my ($ns, $buf) = @_;
		3322
		3323	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3324
		3325	if (ref $msg) {
		3326	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3327
		3328	if (my $cb = $EXTIACMD{$type}) {
		3329	$cb->(
		3330	$ns,
		3331	sub {
		3332	$ns->ext_msg ("reply-$reply", @_)
		3333	if $reply;
		3334	},
		3335	@payload
		3336	);
		3337	} else {
		3338	my @reply;
		3339
		3340	if (my $cb = $EXTICMD{$type}) {
		3341	@reply = $cb->($ns, @payload);
		3342	}
		3343
		3344	$ns->ext_msg ("reply-$reply", @reply)
		3345	if $reply;
		3346	}
		3347	} else {
		3348	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3349	}
		3350
		3351	cf::override;
		3352	},
1979	);	3353	);
1980		3354
1981	=item $client->async (\&cb)	3355	=item $client->async (\&cb)
1982		3356
1983	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
…		…
1999		3373
2000	$coro	3374	$coro
2001	}	3375	}
2002		3376
2003	cf::client->attach (	3377	cf::client->attach (
2004	on_destroy => sub {	3378	on_client_destroy => sub {
2005	my ($ns) = @_;	3379	my ($ns) = @_;
2006		3380
2007	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2008	},	3382	},
2009	);	3383	);
…		…
2024	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
2026		3400
2027	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
2028		3402
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3403	$safe->permit_only (Opcode::opset qw(
		3404	:base_core :base_mem :base_orig :base_math :base_loop
		3405	grepstart grepwhile mapstart mapwhile
		3406	sort time
		3407	));
2030		3408
2031	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
2032		3410
2033	=pod	3411	=pod
2034		3412
2035	The following fucntions and emthods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
2036		3414
2037	cf::object contr pay_amount pay_player map	3415	cf::object
		3416	contr pay_amount pay_player map x y force_find force_add destroy
		3417	insert remove name archname title slaying race decrease split
		3418	value
		3419
2038	cf::object::player player	3420	cf::object::player
2039	cf::player peaceful	3421	player
2040	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
2041		3428
2042	=cut	3429	=cut
2043		3430
2044	for (	3431	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	3432	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3433	insert remove inv nrof name archname title slaying race
		3434	decrease split destroy change_exp value msg lore send_msg)],
2046	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
2048	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
2049	) {	3438	) {
2050	no strict 'refs';
2051	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
2052	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2053	for @funs;	3441	for @funs;
2054	}	3442	}
2055		3443
…		…
2070		3458
2071	my $qcode = $code;	3459	my $qcode = $code;
2072	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2073	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
2074		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
2075	local $_;	3466	local $_;
2076	local @safe::cf::_safe_eval_args = values %vars;
2077		3467
2078	my $eval =	3468	my $eval =
2079	"do {\n"	3469	"do {\n"
2080	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2081	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
2082	. $code	3472	. $code
2083	. "\n}"	3473	. "\n}"
2084	;	3474	;
2085		3475
		3476	if ($CFG{safe_eval}) {
2086	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
2087	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2088	sub_generation_inc;	3480	sub_generation_inc;
		3481	} else {
		3482	local @cf::_safe_eval_args = values %vars;
		3483	@res = wantarray ? eval eval : scalar eval $eval;
		3484	}
2089		3485
2090	if ($@) {	3486	if ($@) {
2091	warn "$@";	3487	warn "$@",
2092	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
2093	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
2094	}	3490	}
2095		3491
2096	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
2097	}	3493	}
2098		3494
…		…
2112	=cut	3508	=cut
2113		3509
2114	sub register_script_function {	3510	sub register_script_function {
2115	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
2116		3512
2117	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
2118	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
2119	}	3515	}
2120		3516
2121	=back	3517	=back
2122		3518
2123	=cut	3519	=cut
2124		3520
2125	#############################################################################	3521	#############################################################################
		3522	# the server's init and main functions
2126		3523
2127	=head2 EXTENSION DATABASE SUPPORT	3524	our %FACEHASH; # hash => idx, #d# HACK for http server
2128		3525
2129	Crossfire maintains a very simple database for extension use. It can	3526	# internal api, not fianlised
2130	currently store anything that can be serialised using Storable, which	3527	sub set_face {
2131	excludes objects.	3528	my ($name, $type, $data) = @_;
2132		3529
2133	The parameter C<$family> should best start with the name of the extension	3530	my $idx = cf::face::find $name;
2134	using it, it should be unique.
2135		3531
2136	=over 4	3532	if ($idx) {
2137		3533	delete $FACEHASH{cf::face::get_chksum $idx};
2138	=item $hashref = cf::db_get $family
2139
2140	Return a hashref for use by the extension C<$family>, which can be
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143
2144	=item $value = cf::db_get $family => $key
2145
2146	Returns a single value from the database
2147
2148	=item cf::db_put $family => $hashref
2149
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});
2199
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}
2204
2205	sub db_get($;$) {
2206	@_ >= 2
2207	? $DB->{$_[0]}{$_[1]}
2208	: ($DB->{$_[0]} ||= { })
2209	}
2210
2211	sub db_put($$;$) {
2212	if (@_ >= 3) {
2213	$DB->{$_[0]}{$_[1]} = $_[2];
2214	} else {	3534	} else {
2215	$DB->{$_[0]} = $_[1];	3535	$idx = cf::face::alloc $name;
2216	}	3536	}
2217	db_dirty;	3537
		3538	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3539
		3540	cf::face::set_type $idx, $type;
		3541	cf::face::set_data $idx, 0, $data, $hash;
		3542	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3543	$FACEHASH{$hash} = $idx;#d#
		3544
		3545	$idx
		3546	}
		3547
		3548	sub load_facedata($) {
		3549	my ($path) = @_;
		3550
		3551	# HACK to clear player env face cache, we need some signal framework
		3552	# for this (global event?)
		3553	%ext::player_env::MUSIC_FACE_CACHE = ();
		3554
		3555	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3556
		3557	trace "loading facedata from $path\n";
		3558
		3559	my $facedata = decode_storable load_file $path;
		3560
		3561	$facedata->{version} == 2
		3562	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3563
		3564	cf::cede_to_tick;
		3565
2218	}	3566	{
		3567	my $faces = delete $facedata->{faceinfo};
2219		3568
2220	cf::global->attach (	3569	for my $face (sort keys %$faces) {
2221	prio => 10000,	3570	my $info = $faces->{$face};
2222	on_cleanup => sub {	3571	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2223	db_sync;	3572
		3573	cf::face::set_visibility $idx, $info->{visibility};
		3574	cf::face::set_magicmap $idx, $info->{magicmap};
		3575	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3576	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3577	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3578	$FACEHASH{$info->{hash64}} = $idx;#d#
		3579
		3580	cf::cede_to_tick;
2224	},	3581	}
2225	);
2226	}
2227		3582
2228	#############################################################################	3583	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3584	next unless $info->{smooth};
2230		3585
2231	sub cfg_load {	3586	my $idx = cf::face::find $face
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3587	or next;
2233	or return;
2234		3588
2235	local $/;	3589	if (my $smooth = cf::face::find $info->{smooth}) {
2236	*CFG = YAML::Syck::Load <$fh>;	3590	cf::face::set_smooth $idx, $smooth;
		3591	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3592	} else {
		3593	error "smooth face '$info->{smooth}' not found for face '$face'";
		3594	}
2237		3595
		3596	cf::cede_to_tick;
		3597	}
		3598	}
		3599
		3600	{
		3601	my $anims = delete $facedata->{animinfo};
		3602
		3603	while (my ($anim, $info) = each %$anims) {
		3604	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3605	cf::cede_to_tick;
		3606	}
		3607
		3608	cf::anim::invalidate_all; # d'oh
		3609	}
		3610
		3611	{
		3612	my $res = delete $facedata->{resource};
		3613
		3614	while (my ($name, $info) = each %$res) {
		3615	if (defined (my $type = $info->{type})) {
		3616	# TODO: different hash - must free and use new index, or cache ixface data queue
		3617	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3618
		3619	cf::face::set_type $idx, $type;
		3620	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3621	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3622	$FACEHASH{$info->{hash}} = $idx;#d#
		3623	} else {
		3624	# $RESOURCE{$name} = $info; # unused
		3625	}
		3626
		3627	cf::cede_to_tick;
		3628	}
		3629	}
		3630
		3631	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3632
		3633	1
		3634	}
		3635
		3636	register_exticmd fx_want => sub {
		3637	my ($ns, $want) = @_;
		3638
		3639	while (my ($k, $v) = each %$want) {
		3640	$ns->fx_want ($k, $v);
		3641	}
		3642	};
		3643
		3644	sub load_resource_file($) {
		3645	my $guard = lock_acquire "load_resource_file";
		3646
		3647	my $status = load_resource_file_ $_[0];
		3648	get_slot 0.1, 100;
		3649	cf::arch::commit_load;
		3650
		3651	$status
		3652	}
		3653
		3654	sub reload_exp_table {
		3655	_reload_exp_table;
		3656
		3657	set_face "res/exp_table" => FT_RSRC,
		3658	JSON::XS->new->utf8->canonical->encode (
		3659	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3660	);
		3661	}
		3662
		3663	sub reload_materials {
		3664	_reload_materials;
		3665	}
		3666
		3667	sub reload_regions {
		3668	# HACK to clear player env face cache, we need some signal framework
		3669	# for this (global event?)
		3670	%ext::player_env::MUSIC_FACE_CACHE = ();
		3671
		3672	load_resource_file "$MAPDIR/regions"
		3673	or die "unable to load regions file\n";
		3674
		3675	for (cf::region::list) {
		3676	$_->{match} = qr/$_->{match}/
		3677	if exists $_->{match};
		3678	}
		3679	}
		3680
		3681	sub reload_facedata {
		3682	load_facedata "$DATADIR/facedata"
		3683	or die "unable to load facedata\n";
		3684	}
		3685
		3686	sub reload_archetypes {
		3687	load_resource_file "$DATADIR/archetypes"
		3688	or die "unable to load archetypes\n";
		3689
		3690	set_face "res/skill_info" => FT_RSRC,
		3691	JSON::XS->new->utf8->canonical->encode (
		3692	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3693	);
		3694	set_face "res/spell_paths" => FT_RSRC,
		3695	JSON::XS->new->utf8->canonical->encode (
		3696	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3697	);
		3698	}
		3699
		3700	sub reload_treasures {
		3701	load_resource_file "$DATADIR/treasures"
		3702	or die "unable to load treasurelists\n";
		3703	}
		3704
		3705	sub reload_sound {
		3706	trace "loading sound config from $DATADIR/sound\n";
		3707
		3708	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3709
		3710	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3711	my $sound = $soundconf->{compat}[$_]
		3712	or next;
		3713
		3714	my $face = cf::face::find "sound/$sound->[1]";
		3715	cf::sound::set $sound->[0] => $face;
		3716	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3717	}
		3718
		3719	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3720	my $face = cf::face::find "sound/$v";
		3721	cf::sound::set $k => $face;
		3722	}
		3723	}
		3724
		3725	sub reload_resources {
		3726	trace "reloading resource files...\n";
		3727
		3728	reload_materials;
		3729	reload_facedata;
		3730	reload_exp_table;
		3731	reload_sound;
		3732	reload_archetypes;
		3733	reload_regions;
		3734	reload_treasures;
		3735
		3736	trace "finished reloading resource files\n";
		3737	}
		3738
		3739	sub reload_config {
		3740	trace "reloading config file...\n";
		3741
		3742	my $config = load_file "$CONFDIR/config";
		3743	utf8::decode $config;
		3744	*CFG = decode_yaml $config;
		3745
2238	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3746	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2239		3747
2240	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3748	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2241	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3749	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2242		3750
2243	if (exists $CFG{mlockall}) {	3751	if (exists $CFG{mlockall}) {
…		…
2247	};	3755	};
2248	warn $@ if $@;	3756	warn $@ if $@;
2249	}	3757	}
2250	}	3758	}
2251		3759
		3760	sub pidfile() {
		3761	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3762	or die "$PIDFILE: $!";
		3763	flock $fh, &Fcntl::LOCK_EX
		3764	or die "$PIDFILE: flock: $!";
		3765	$fh
		3766	}
		3767
		3768	# make sure only one server instance is running at any one time
		3769	sub atomic {
		3770	my $fh = pidfile;
		3771
		3772	my $pid = <$fh>;
		3773	kill 9, $pid if $pid > 0;
		3774
		3775	seek $fh, 0, 0;
		3776	print $fh $$;
		3777	}
		3778
		3779	sub main_loop {
		3780	trace "EV::loop starting\n";
		3781	if (1) {
		3782	EV::loop;
		3783	}
		3784	trace "EV::loop returned\n";
		3785	goto &main_loop unless $REALLY_UNLOOP;
		3786	}
		3787
2252	sub main {	3788	sub main {
		3789	cf::init_globals; # initialise logging
		3790
		3791	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3792	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3793	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3794	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3795
		3796	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3797
2253	# we must not ever block the main coroutine	3798	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3799	$Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3800	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2256	async { Event::one_event };	3801	(async {
		3802	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3803	EV::loop EV::LOOP_ONESHOT;
		3804	})->prio (Coro::PRIO_MAX);
2257	};	3805	};
2258		3806
2259	cfg_load;	3807	evthread_start IO::AIO::poll_fileno;
2260	db_load;	3808
		3809	cf::sync_job {
		3810	cf::incloader::init ();
		3811
		3812	db_init;
		3813
		3814	cf::init_anim;
		3815	cf::init_attackmess;
		3816	cf::init_dynamic;
		3817
		3818	cf::load_settings;
		3819
		3820	reload_resources;
		3821	reload_config;
		3822
		3823	cf::init_uuid;
		3824	cf::init_signals;
		3825	cf::init_skills;
		3826
		3827	cf::init_beforeplay;
		3828
		3829	atomic;
		3830
2261	load_extensions;	3831	load_extensions;
2262	Event::loop;	3832
		3833	utime time, time, $RUNTIMEFILE;
		3834
		3835	# no (long-running) fork's whatsoever before this point(!)
		3836	use POSIX ();
		3837	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3838
		3839	cf::_post_init 0;
		3840	};
		3841
		3842	cf::object::thawer::errors_are_fatal 0;
		3843	info "parse errors in files are no longer fatal from this point on.\n";
		3844
		3845	AE::postpone {
		3846	undef &main; # free gobs of memory :)
		3847	};
		3848
		3849	goto &main_loop;
2263	}	3850	}
2264		3851
2265	#############################################################################	3852	#############################################################################
2266	# initialisation and cleanup	3853	# initialisation and cleanup
2267		3854
2268	# install some emergency cleanup handlers	3855	# install some emergency cleanup handlers
2269	BEGIN {	3856	BEGIN {
		3857	our %SIGWATCHER = ();
2270	for my $signal (qw(INT HUP TERM)) {	3858	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3859	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2272	data => WF_AUTOCANCEL,
2273	signal => $signal,
2274	cb => sub {
2275	cf::cleanup "SIG$signal";	3860	cf::cleanup "SIG$signal";
2276	},
2277	);	3861	};
		3862	}
		3863	}
		3864
		3865	sub write_runtime_sync {
		3866	my $t0 = AE::time;
		3867
		3868	# first touch the runtime file to show we are still running:
		3869	# the fsync below can take a very very long time.
		3870
		3871	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3872
		3873	my $guard = cf::lock_acquire "write_runtime";
		3874
		3875	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3876	or return;
		3877
		3878	my $value = $cf::RUNTIME + 90 + 10;
		3879	# 10 is the runtime save interval, for a monotonic clock
		3880	# 60 allows for the watchdog to kill the server.
		3881
		3882	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3883	and return;
		3884
		3885	# always fsync - this file is important
		3886	aio_fsync $fh
		3887	and return;
		3888
		3889	# touch it again to show we are up-to-date
		3890	aio_utime $fh, undef, undef;
		3891
		3892	close $fh
		3893	or return;
		3894
		3895	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3896	and return;
		3897
		3898	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3899
2278	}	3900	1
		3901	}
		3902
		3903	our $uuid_lock;
		3904	our $uuid_skip;
		3905
		3906	sub write_uuid_sync($) {
		3907	$uuid_skip ||= $_[0];
		3908
		3909	return if $uuid_lock;
		3910	local $uuid_lock = 1;
		3911
		3912	my $uuid = "$LOCALDIR/uuid";
		3913
		3914	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3915	or return;
		3916
		3917	my $value = uuid_seq uuid_cur;
		3918
		3919	unless ($value) {
		3920	info "cowardly refusing to write zero uuid value!\n";
		3921	return;
		3922	}
		3923
		3924	my $value = uuid_str $value + $uuid_skip;
		3925	$uuid_skip = 0;
		3926
		3927	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3928	and return;
		3929
		3930	# always fsync - this file is important
		3931	aio_fsync $fh
		3932	and return;
		3933
		3934	close $fh
		3935	or return;
		3936
		3937	aio_rename "$uuid~", $uuid
		3938	and return;
		3939
		3940	trace "uuid file written ($value).\n";
		3941
		3942	1
		3943
		3944	}
		3945
		3946	sub write_uuid($$) {
		3947	my ($skip, $sync) = @_;
		3948
		3949	$sync ? write_uuid_sync $skip
		3950	: async { write_uuid_sync $skip };
2279	}	3951	}
2280		3952
2281	sub emergency_save() {	3953	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3954	my $freeze_guard = cf::freeze_mainloop;
2283		3955
2284	warn "enter emergency perl save\n";	3956	info "emergency_perl_save: enter\n";
		3957
		3958	# this is a trade-off: we want to be very quick here, so
		3959	# save all maps without fsync, and later call a global sync
		3960	# (which in turn might be very very slow)
		3961	local $USE_FSYNC = 0;
2285		3962
2286	cf::sync_job {	3963	cf::sync_job {
		3964	cf::write_runtime_sync; # external watchdog should not bark
		3965
2287	# use a peculiar iteration method to avoid tripping on perl	3966	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3967	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3968	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3969	info "emergency_perl_save: begin player save\n";
2291	for my $login (keys %cf::PLAYER) {	3970	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3971	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3972	$pl->valid or next;
		3973	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2294	$pl->save;	3974	$pl->save;
2295	}	3975	}
2296	warn "end emergency player save\n";	3976	info "emergency_perl_save: end player save\n";
2297		3977
2298	warn "begin emergency map save\n";	3978	cf::write_runtime_sync; # external watchdog should not bark
		3979
		3980	info "emergency_perl_save: begin map save\n";
2299	for my $path (keys %cf::MAP) {	3981	for my $path (keys %cf::MAP) {
2300	my $map = $cf::MAP{$path} or next;	3982	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3983	$map->valid or next;
2302	$map->save;	3984	$map->save;
2303	}	3985	}
2304	warn "end emergency map save\n";	3986	info "emergency_perl_save: end map save\n";
		3987
		3988	cf::write_runtime_sync; # external watchdog should not bark
		3989
		3990	info "emergency_perl_save: begin database checkpoint\n";
		3991	BDB::db_env_txn_checkpoint $DB_ENV;
		3992	info "emergency_perl_save: end database checkpoint\n";
		3993
		3994	info "emergency_perl_save: begin write uuid\n";
		3995	write_uuid_sync 1;
		3996	info "emergency_perl_save: end write uuid\n";
		3997
		3998	cf::write_runtime_sync; # external watchdog should not bark
		3999
		4000	trace "emergency_perl_save: syncing database to disk";
		4001	BDB::db_env_txn_checkpoint $DB_ENV;
		4002
		4003	info "emergency_perl_save: starting sync\n";
		4004	IO::AIO::aio_sync sub {
		4005	info "emergency_perl_save: finished sync\n";
		4006	};
		4007
		4008	cf::write_runtime_sync; # external watchdog should not bark
		4009
		4010	trace "emergency_perl_save: flushing outstanding aio requests";
		4011	while (IO::AIO::nreqs || BDB::nreqs) {
		4012	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4013	}
		4014
		4015	cf::write_runtime_sync; # external watchdog should not bark
2305	};	4016	};
2306		4017
2307	warn "leave emergency perl save\n";	4018	info "emergency_perl_save: leave\n";
2308	}	4019	}
2309		4020
		4021	sub post_cleanup {
		4022	my ($make_core) = @_;
		4023
		4024	IO::AIO::flush;
		4025
		4026	error Carp::longmess "post_cleanup backtrace"
		4027	if $make_core;
		4028
		4029	my $fh = pidfile;
		4030	unlink $PIDFILE if <$fh> == $$;
		4031	}
		4032
		4033	# a safer delete_package, copied from Symbol
		4034	sub clear_package($) {
		4035	my $pkg = shift;
		4036
		4037	# expand to full symbol table name if needed
		4038	unless ($pkg =~ /^main::.*::$/) {
		4039	$pkg = "main$pkg" if $pkg =~ /^::/;
		4040	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4041	$pkg .= '::' unless $pkg =~ /::$/;
		4042	}
		4043
		4044	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4045	my $stem_symtab = *{$stem}{HASH};
		4046
		4047	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4048	or return;
		4049
		4050	# clear all symbols
		4051	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4052	for my $name (keys %$leaf_symtab) {
		4053	_gv_clear *{"$pkg$name"};
		4054	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4055	}
		4056	}
		4057
2310	sub reload() {	4058	sub do_reload_perl() {
2311	# can/must only be called in main	4059	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	4060	unless (in_main) {
2313	warn "can only reload from main coroutine\n";	4061	error "can only reload from main coroutine";
2314	return;	4062	return;
2315	}	4063	}
2316		4064
2317	warn "reloading...";	4065	return if $RELOAD++;
2318		4066
2319	warn "freezing server";	4067	my $t1 = AE::time;
2320	my $guard = freeze_mainloop;	4068
		4069	while ($RELOAD) {
		4070	cf::get_slot 0.1, -1, "reload_perl";
		4071	info "perl_reload: reloading...";
		4072
		4073	trace "perl_reload: entering sync_job";
		4074
		4075	cf::sync_job {
2321	cf::emergency_save;	4076	#cf::emergency_save;
2322		4077
2323	warn "sync database to disk";	4078	trace "perl_reload: cancelling all extension coros";
2324	cf::db_sync;
2325	IO::AIO::flush;
2326
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved
2329
2330	warn "cancel all watchers";
2331	for (Event::all_watchers) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;
2333	}
2334
2335	warn "cancel all extension coros";
2336	$_->cancel for values %EXT_CORO;	4079	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	4080	%EXT_CORO = ();
2338		4081
2339	warn "remove commands";	4082	trace "perl_reload: removing commands";
2340	%COMMAND = ();	4083	%COMMAND = ();
2341		4084
2342	warn "remove ext commands";	4085	trace "perl_reload: removing ext/exti commands";
2343	%EXTCMD = ();	4086	%EXTCMD = ();
		4087	%EXTICMD = ();
2344		4088
2345	warn "unload/nuke all extensions";	4089	trace "perl_reload: unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	4090	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	4091	trace "... unloading $pkg";
2348		4092
2349	if (my $cb = $pkg->can ("unload")) {	4093	if (my $cb = $pkg->can ("unload")) {
2350	eval {	4094	eval {
2351	$cb->($pkg);	4095	$cb->($pkg);
2352	1	4096	1
2353	} or warn "$pkg unloaded, but with errors: $@";	4097	} or error "$pkg unloaded, but with errors: $@";
		4098	}
		4099
		4100	trace "... clearing $pkg";
		4101	clear_package $pkg;
2354	}	4102	}
2355		4103
2356	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;
2358	}
2359
2360	warn "unload all perl modules loaded from $LIBDIR";	4104	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	4105	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4106	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		4107
2364	warn "removing <$k>";	4108	trace "... unloading $k";
2365	delete $INC{$k};	4109	delete $INC{$k};
2366		4110
2367	$k =~ s/\.pm$//;	4111	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	4112	$k =~ s/\//::/g;
2369		4113
2370	if (my $cb = $k->can ("unload_module")) {	4114	if (my $cb = $k->can ("unload_module")) {
2371	$cb->();	4115	$cb->();
		4116	}
		4117
		4118	clear_package $k;
2372	}	4119	}
2373		4120
2374	Symbol::delete_package $k;
2375	}
2376
2377	warn "get rid of safe::, as good as possible";	4121	trace "perl_reload: getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	4122	clear_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4123	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		4124
2381	warn "unload cf.pm \"a bit\"";	4125	trace "perl_reload: unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	4126	delete $INC{"cf.pm"};
		4127	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2383		4128
2384	# don't, removes xs symbols, too,	4129	# don't, removes xs symbols, too,
2385	# and global variables created in xs	4130	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	4131	#clear_package __PACKAGE__;
2387		4132
2388	warn "reloading cf.pm";	4133	info "perl_reload: unload completed, starting to reload now";
		4134
		4135	trace "perl_reload: reloading cf.pm";
2389	require cf;	4136	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4137	cf::_connect_to_perl_1;
2391		4138
2392	warn "load config and database again";	4139	trace "perl_reload: loading config and database again";
2393	cf::cfg_load;	4140	cf::reload_config;
2394	cf::db_load;
2395		4141
2396	warn "load extensions";	4142	trace "perl_reload: loading extensions";
2397	cf::load_extensions;	4143	cf::load_extensions;
2398		4144
		4145	if ($REATTACH_ON_RELOAD) {
2399	warn "reattach attachments to objects/players";	4146	trace "perl_reload: reattaching attachments to objects/players";
2400	_global_reattach;	4147	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	4148	trace "perl_reload: reattaching attachments to maps";
2402	reattach $_ for values %MAP;	4149	reattach $_ for values %MAP;
		4150	trace "perl_reload: reattaching attachments to players";
		4151	reattach $_ for values %PLAYER;
		4152	}
		4153
		4154	cf::_post_init 1;
		4155
		4156	trace "perl_reload: leaving sync_job";
		4157
		4158	1
		4159	} or do {
		4160	error $@;
		4161	cf::cleanup "perl_reload: error, exiting.";
		4162	};
		4163
		4164	--$RELOAD;
		4165	}
		4166
		4167	$t1 = AE::time - $t1;
		4168	info "perl_reload: completed in ${t1}s\n";
		4169	};
		4170
		4171	our $RELOAD_WATCHER; # used only during reload
		4172
		4173	sub reload_perl() {
		4174	# doing reload synchronously and two reloads happen back-to-back,
		4175	# coro crashes during coro_state_free->destroy here.
		4176
		4177	$RELOAD_WATCHER ||= cf::async {
		4178	Coro::AIO::aio_wait cache_extensions;
		4179
		4180	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4181	do_reload_perl;
		4182	undef $RELOAD_WATCHER;
		4183	};
2403	};	4184	};
2404
2405	if ($@) {
2406	warn $@;
2407	warn "error while reloading, exiting.";
2408	exit 1;
2409	}
2410
2411	warn "reloaded";
2412	};
2413
2414	#############################################################################
2415
2416	unless ($LINK_MAP) {
2417	$LINK_MAP = cf::map::new;
2418
2419	$LINK_MAP->width (41);
2420	$LINK_MAP->height (41);
2421	$LINK_MAP->alloc;
2422	$LINK_MAP->path ("{link}");
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,
2429	cb => sub {
2430	$_[0]->w->cancel;
2431
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});
2450
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	4185	}
2456		4186
2457	register_command "reload" => sub {	4187	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	4188	my ($who, $arg) = @_;
2459		4189
2460	if ($who->flag (FLAG_WIZ)) {	4190	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	4191	$who->message ("reloading server.");
		4192	async {
		4193	$Coro::current->{desc} = "perl_reload";
		4194	reload_perl;
		4195	};
2464	}	4196	}
2465	};	4197	};
2466		4198
2467	unshift @INC, $LIBDIR;	4199	#############################################################################
2468		4200
2469	$TICK_WATCHER = Event->timer (	4201	my $bug_warning = 0;
2470	reentrant => 0,
2471	prio => 0,
2472	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,
2474	cb => sub {
2475	$NOW = Event::time;
2476		4202
2477	cf::server_tick; # one server iteration	4203	sub wait_for_tick() {
2478	$RUNTIME += $TICK;	4204	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2479	$NEXT_TICK += $TICK;
2480		4205
		4206	$WAIT_FOR_TICK->wait;
		4207	}
		4208
		4209	sub wait_for_tick_begin() {
		4210	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4211
		4212	my $signal = new Coro::Signal;
		4213	push @WAIT_FOR_TICK_BEGIN, $signal;
		4214	$signal->wait;
		4215	}
		4216
		4217	sub tick {
		4218	if ($Coro::current != $Coro::main) {
		4219	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4220	unless ++$bug_warning > 10;
		4221	return;
		4222	}
		4223
		4224	cf::one_tick; # one server iteration
		4225
		4226	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4227
		4228	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4229	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4230	Coro::async_pool {
		4231	$Coro::current->{desc} = "runtime saver";
		4232	write_runtime_sync
		4233	or error "ERROR: unable to write runtime file: $!";
		4234	};
		4235	}
		4236
		4237	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4238	$sig->send;
		4239	}
2481	$WAIT_FOR_TICK->broadcast;	4240	$WAIT_FOR_TICK->broadcast;
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2483		4241
2484	# if we are delayed by four ticks or more, skip them all	4242	$LOAD = ($NOW - $TICK_START) / $TICK;
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4243	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2486		4244
2487	$TICK_WATCHER->at ($NEXT_TICK);	4245	if (0) {
2488	$TICK_WATCHER->start;	4246	if ($NEXT_TICK) {
		4247	my $jitter = $TICK_START - $NEXT_TICK;
		4248	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4249	debug "jitter $JITTER\n";#d#
		4250	}
2489	},	4251	}
2490	);	4252	}
2491		4253
		4254	{
		4255	# configure BDB
		4256	info "initialising database";
		4257
		4258	BDB::min_parallel 16;
		4259	BDB::max_poll_reqs $TICK * 0.1;
		4260	#$AnyEvent::BDB::WATCHER->priority (1);
		4261
		4262	unless ($DB_ENV) {
		4263	$DB_ENV = BDB::db_env_create;
		4264	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4265	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4266	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4267	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4268	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4269
		4270	cf::sync_job {
		4271	eval {
		4272	BDB::db_env_open
		4273	$DB_ENV,
		4274	$BDBDIR,
		4275	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4276	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4277	0666;
		4278
		4279	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4280	};
		4281
		4282	cf::cleanup "db_env_open(db): $@" if $@;
		4283	};
		4284	}
		4285
		4286	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4287	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4288	};
		4289	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4290	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4291	};
		4292	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4293	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4294	};
		4295
		4296	info "database initialised";
		4297	}
		4298
		4299	{
		4300	# configure IO::AIO
		4301
		4302	info "initialising aio";
		4303	IO::AIO::min_parallel 8;
2492	IO::AIO::max_poll_time $TICK * 0.2;	4304	IO::AIO::max_poll_time $TICK * 0.1;
		4305	undef $AnyEvent::AIO::WATCHER;
		4306	info "aio initialised";
		4307	}
2493		4308
2494	Event->io (	4309	our $_log_backtrace;
2495	fd => IO::AIO::poll_fileno,	4310	our $_log_backtrace_last;
2496	poll => 'r',
2497	prio => 5,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501		4311
2502	Event->timer (	4312	sub _log_backtrace {
2503	data => WF_AUTOCANCEL,	4313	my ($msg, @addr) = @_;
2504	after => 0,	4314
2505	interval => 10,	4315	$msg =~ s/\n$//;
2506	cb => sub {	4316
2507	(Coro::unblock_sub {	4317	if ($_log_backtrace_last eq $msg) {
2508	write_runtime	4318	LOG llevInfo, "[ABT] $msg\n";
2509	or warn "ERROR: unable to write runtime file: $!";	4319	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4320	# limit the # of concurrent backtraces
		4321	} elsif ($_log_backtrace < 2) {
		4322	$_log_backtrace_last = $msg;
		4323	++$_log_backtrace;
		4324	my $perl_bt = Carp::longmess $msg;
		4325	async {
		4326	$Coro::current->{desc} = "abt $msg";
		4327
		4328	my @bt = fork_call {
		4329	@addr = map { sprintf "%x", $_ } @addr;
		4330	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4331	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4332	or die "addr2line: $!";
		4333
		4334	my @funcs;
		4335	my @res = <$fh>;
		4336	chomp for @res;
		4337	while (@res) {
		4338	my ($func, $line) = splice @res, 0, 2, ();
		4339	push @funcs, "[$func] $line";
		4340	}
		4341
		4342	@funcs
		4343	};
		4344
		4345	LOG llevInfo, "[ABT] $perl_bt\n";
		4346	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4347	LOG llevInfo, "[ABT] $_\n" for @bt;
		4348	--$_log_backtrace;
2510	})->();	4349	};
		4350	} else {
		4351	LOG llevInfo, "[ABT] $msg\n";
		4352	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2511	},	4353	}
2512	);	4354	}
		4355
		4356	# load additional modules
		4357	require "cf/$_.pm" for @EXTRA_MODULES;
		4358	cf::_connect_to_perl_2;
2513		4359
2514	END { cf::emergency_save }	4360	END { cf::emergency_save }
2515		4361
2516	1	4362	1
2517		4363

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