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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.205 by root, Mon Feb 5 18:29:20 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 3.5 ();	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
49	our $AIO_POLL_WATCHER;	105	our $DATADIR = datadir;
50	our $WRITE_RUNTIME_WATCHER;	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
51	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;
52	our $NOW;	145	our $NOW;
53	our $USE_FSYNC = 1; # use fsync to write maps - default off
54		146
55	our %CFG;	147	our (%PLAYER, %PLAYER_LOADING); # all users
56		148	our (%MAP, %MAP_LOADING ); # all maps
57	our $UPTIME; $UPTIME ||= time;
58	our $RUNTIME;
59
60	our %PLAYER; # all users
61	our %MAP; # all maps
62	our $LINK_MAP; # the special {link} map, which is always available	149	our $LINK_MAP; # the special {link} map, which is always available
63	our $RANDOM_MAPS = cf::localdir . "/random";
64
65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
67		150
68	# used to convert map paths into valid unix filenames by replacing / by ∕	151	# used to convert map paths into valid unix filenames by replacing / by ∕
69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	152	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
70		153
		154	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		155	our $LOADAVG; # same thing, but with alpha-smoothing
		156	our $JITTER; # average jitter
		157	our $TICK_START; # for load detecting purposes
		158
		159	our @POST_INIT;
		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 $WAIT_FOR_TICK = new Coro::Signal;
		165	our @WAIT_FOR_TICK_BEGIN;
		166
71	binmode STDOUT;	167	binmode STDOUT;
72	binmode STDERR;	168	binmode STDERR;
73		169
74	# read virtual server time, if available	170	# read virtual server time, if available
75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	171	unless ($RUNTIME || !-e $RUNTIMEFILE) {
76	open my $fh, "<", cf::localdir . "/runtime"	172	open my $fh, "<", $RUNTIMEFILE
77	or die "unable to read runtime file: $!";	173	or die "unable to read $RUNTIMEFILE file: $!";
78	$RUNTIME = <$fh> + 0.;	174	$RUNTIME = <$fh> + 0.;
79	}	175	}
80		176
81	mkdir cf::localdir;	177	eval "sub TICK() { $TICK } 1" or die;
82	mkdir cf::localdir . "/" . cf::playerdir;	178
83	mkdir cf::localdir . "/" . cf::tmpdir;	179	mkdir $_
84	mkdir cf::localdir . "/" . cf::uniquedir;	180	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
85	mkdir $RANDOM_MAPS;
86		181
87	our $EMERGENCY_POSITION;	182	our $EMERGENCY_POSITION;
88		183
89	sub cf::map::normalise;	184	sub cf::map::normalise;
90		185
		186	sub in_main() {
		187	$Coro::current == $Coro::main
		188	}
		189
91	#############################################################################	190	#############################################################################
92		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
93	=head2 GLOBAL VARIABLES	203	=head2 GLOBAL VARIABLES
94		204
95	=over 4	205	=over 4
96		206
97	=item $cf::UPTIME	207	=item $cf::UPTIME
98		208
99	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.
100		225
101	=item $cf::RUNTIME	226	=item $cf::RUNTIME
102		227
103	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
104	every server tick.	229	every server tick.
105		230
106	=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
107		234
108	The perl library directory, where extensions and cf-specific modules can	235	Various directories - "/etc", read-only install directory, perl-library
109	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.
110		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
111	=item $cf::NOW	246	=item $cf::LOAD
112		247
113	The time of the last (current) server tick.	248	The raw value load value from the last tick.
114
115	=item $cf::TICK
116
117	The interval between server ticks, in seconds.
118		249
119	=item %cf::CFG	250	=item %cf::CFG
120		251
121	Configuration for the server, loaded from C</etc/crossfire/config>, or	252	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
122	from wherever your confdir points to.	253	from wherever your confdir points to.
123		254
124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	255	=item cf::wait_for_tick, cf::wait_for_tick_begin
125		256
126	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	257	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
127	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	258	returns directly I<after> the tick processing (and consequently, can only wake one thread
128	processing has been done. Call C<< ->wait >> on them to maximise the	259	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
129	window of cpu time available, or simply to synchronise to the server tick.	260
		261	Note that cf::Wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
130		289
131	=back	290	=back
132		291
133	=cut	292	=cut
134		293
135	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
136	*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 {
137	my $msg = join "", @_;	301	my $msg = join "", @_;
138	utf8::encode $msg;
139		302
140	$msg .= "\n"	303	$msg .= "\n"
141	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
142		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
143	LOG llevError, $msg;	308	LOG llevWarn, $msg;
144	};	309	};
145	}	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	};
146		324
147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
151	@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';
152	@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)
153		332
154	# 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
155	# within the Safe compartment.	334	# within the Safe compartment.
156	for my $pkg (qw(	335	for my $pkg (qw(
157	cf::global cf::attachable	336	cf::global cf::attachable
158	cf::object cf::object::player	337	cf::object cf::object::player
159	cf::client cf::player	338	cf::client cf::player
160	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
161	cf::map cf::party cf::region	341	cf::party cf::region
162	)) {	342	)) {
163	no strict 'refs';
164	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
165	}	344	}
166		345
167	$Event::DIED = sub {	346	$EV::DIED = sub {
168	warn "error in event callback: @_";	347	warn "error in event callback: $@";
169	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
170		356
171	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
172		358
173	=over 4	359	=over 4
174		360
…		…
193	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
194	$d	380	$d
195	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
196	}	382	}
197		383
198	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
199		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
200	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
201		437
202	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
203		439
204	=cut
205
206	sub from_json($) {
207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
208	JSON::Syck::Load $_[0]
209	}
210
211	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
212		441
213	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
214		443
215	=cut	444	=cut
216		445
217	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
219	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	}
220	}	511	}
221		512
222	=item cf::lock_wait $string	513	=item cf::lock_wait $string
223		514
224	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
225		516
226	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
227		518
228	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
229	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,
230	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
231	returned.	522	returned.
232		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
233	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
234	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
235		529
236	=cut	530	=item $locked = cf::lock_active $string
237		531
238	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
239		537
240	sub lock_wait($) {	538	sub lock_wait($) {
241	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
242
243	# wait for lock, if any
244	while ($LOCK{$key}) {
245	push @{ $LOCK{$key} }, $Coro::current;
246	Coro::schedule;
247	}
248	}	540	}
249		541
250	sub lock_acquire($) {	542	sub lock_acquire($) {
251	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
252		545
253	# wait, to be sure we are not locked	546	sub lock_active($) {
254	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
255
256	$LOCK{$key} = [];
257
258	Coro::guard {
259	# wake up all waiters, to be on the safe side
260	$_->ready for @{ delete $LOCK{$key} };
261	}
262	}	548	}
263		549
264	sub freeze_mainloop {	550	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
266		552
267	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
268	$TICK_WATCHER->start;	554	}
269	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
270	};	623	}
271	$WRITE_RUNTIME_WATCHER->stop;	624	};
272	$TICK_WATCHER->stop;	625
273	$guard	626	sub get_slot($;$$) {
		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	$sig->wait;
274	}	639	}
275		640
276	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
277		642
278	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
283		648
284	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
285		650
286	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
287		652
288	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
289	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
290	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
291		657
292	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
293	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
294	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
295	fast or be very important.	661	fast or be very important.
…		…
297	=cut	663	=cut
298		664
299	sub sync_job(&) {	665	sub sync_job(&) {
300	my ($job) = @_;	666	my ($job) = @_;
301		667
302	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
303	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
304	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
305		673
306	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
307	# (but this is cancel-safe)	675
308	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
309		677
310	my $busy = 1;	678	my $busy = 1;
311	my @res;	679	my @res;
312		680
313	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
314	@res = eval { $job->() };	683	@res = eval { $job->() };
315	warn $@ if $@;	684	error $@ if $@;
316	undef $busy;	685	undef $busy;
317	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
318		687
319	while ($busy) {	688	while ($busy) {
320	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
321	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
322		699
323	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
324	} else {	701	} else {
325	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
326		703
…		…
346	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
347		724
348	$coro	725	$coro
349	}	726	}
350		727
351	sub write_runtime {	728	=item fork_call { }, @args
352	my $runtime = cf::localdir . "/runtime";
353		729
354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
355	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.
356		734
357	my $value = $cf::RUNTIME + 90 + 10;	735	=cut
358	# 10 is the runtime save interval, for a monotonic clock
359	# 60 allows for the watchdog to kill the server.
360		736
361	(aio_write $fh, 0, (length $value), $value, 0) <= 0	737	sub post_fork {
362	and return;	738	reset_signals;
		739	}
363		740
364	# always fsync - this file is important	741	sub fork_call(&@) {
365	aio_fsync $fh	742	my ($cb, @args) = @_;
366	and return;
367		743
368	close $fh	744	# we seemingly have to make a local copy of the whole thing,
369	or return;	745	# otherwise perl prematurely frees the stuff :/
		746	# TODO: investigate and fix (likely this will be rather laborious)
370		747
371	aio_rename "$runtime~", $runtime	748	my @res = Coro::Util::fork_eval {
372	and return;	749	cf::post_fork;
		750	&$cb
		751	} @args;
373		752
		753	wantarray ? @res : $res[-1]
		754	}
		755
		756	sub objinfo {
374	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 });
375	}	931	}
376		932
377	=back	933	=back
378		934
379	=cut	935	=cut
380		936
381	#############################################################################	937	#############################################################################
382		938
383	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
384		940
385	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
386	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")
387	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
388		944
389	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>
390	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
391	crossfire+).	947	Deliantra).
392		948
393	=over 4	949	=over 4
394		950
395	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
396		952
…		…
440	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
441		997
442	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
443	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
444		1000
445	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
446	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.
447		1003
448	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
449		1005
450	=over 4	1006	=over 4
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	1115	$registry = $CB_TYPE[$object_type] ||= [];
560		1116
561	} elsif ($type eq "subtype") {	1117	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	1118	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	1119	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1120	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		1121
566	} elsif ($type eq "package") {	1122	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	1123	my $pkg = shift @arg;
568		1124
569	while (my ($name, $id) = each %cb_id) {	1125	while (my ($name, $id) = each %cb_id) {
…		…
574		1130
575	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
577		1133
578	} elsif (ref $type) {	1134	} elsif (ref $type) {
579	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
580		1136
581	} else {	1137	} else {
582	shift @arg;	1138	shift @arg;
583	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
584	}	1140	}
585	}	1141	}
586	}	1142	}
587		1143
588	sub _object_attach {	1144	sub _object_attach {
…		…
598	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
599	}	1155	}
600		1156
601	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
602	} else {	1158	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
604	}	1160	}
605		1161
606	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
607	}	1163	}
608		1164
…		…
610	if (ref $_[0]) {	1166	if (ref $_[0]) {
611	_object_attach @_;	1167	_object_attach @_;
612	} else {	1168	} else {
613	_attach shift->_attach_registry, @_;	1169	_attach shift->_attach_registry, @_;
614	}	1170	}
		1171	_recalc_want;
615	};	1172	};
616		1173
617	# all those should be optimised	1174	# all those should be optimised
618	sub cf::attachable::detach {	1175	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	1176	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	1179	delete $obj->{_attachment}{$name};
623	reattach ($obj);	1180	reattach ($obj);
624	} else {	1181	} else {
625	Carp::croak "cannot, currently, detach class attachments";	1182	Carp::croak "cannot, currently, detach class attachments";
626	}	1183	}
		1184	_recalc_want;
627	};	1185	};
628		1186
629	sub cf::attachable::attached {	1187	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
631		1189
…		…
646	";	1204	";
647	die if $@;	1205	die if $@;
648	}	1206	}
649		1207
650	our $override;	1208	our $override;
651	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?
652		1210
653	sub override {	1211	sub override {
654	$override = 1;	1212	$override = 1;
655	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
656	}	1214	}
657		1215
658	sub do_invoke {	1216	sub do_invoke {
659	my $event = shift;	1217	my $event = shift;
660	my $callbacks = shift;	1218	my $callbacks = shift;
661		1219
662	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
663		1221
664	local $override;	1222	local $override;
665		1223
666	for (@$callbacks) {	1224	for (@$callbacks) {
667	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
668		1226
669	if ($@) {	1227	if ($@) {
670	warn "$@";
671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
672	override;	1229	override;
673	}	1230	}
674		1231
675	return 1 if $override;	1232	return 1 if $override;
676	}	1233	}
677		1234
678	0	1235	0
679	}	1236	}
680		1237
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		1239
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		1241
685	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
686		1243
687	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
688	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
689	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		1247
691	=back	1248	=back
692		1249
693	=cut	1250	=cut
694		1251
695	#############################################################################	1252	#############################################################################
696	# 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, $ob2
		1295	}
697		1296
698	sub reattach {	1297	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1299	my ($obj) = @_;
701		1300
		1301	# no longer needed after getting rid of delete_package?
702	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1302	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
703		1303
704	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
705		1305
706	@$registry = ();	1306	@$registry = ();
707		1307
…		…
712	for (@$attach) {	1312	for (@$attach) {
713	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
714	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
715	}	1315	}
716	} else {	1316	} else {
717	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
718	}	1318	}
719	}	1319	}
720	}	1320	}
721		1321
722	cf::attachable->attach (	1322	cf::attachable->attach (
723	prio => -1000000,	1323	prio => -1000000,
724	on_instantiate => sub {	1324	on_instantiate => sub {
725	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
726		1326
727	$data = from_json $data;	1327	$data = decode_json $data;
728		1328
729	for (@$data) {	1329	for (@$data) {
730	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
731		1331
732	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
748	sub object_freezer_save {	1348	sub object_freezer_save {
749	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
750		1350
751	sync_job {	1351	sync_job {
752	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
753	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
754	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
755		1357
756	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
758	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
759	aio_fsync $fh if $cf::USE_FSYNC;	1361	if ($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;
		1363	aio_fsync $fh;
		1364	}
760	close $fh;	1365	aio_close $fh;
761		1366
762	if (@$objs) {	1367	if (@$objs) {
763	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) {
764	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
765	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
766	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
767	aio_fsync $fh if $cf::USE_FSYNC;	1372	if ($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;
		1374	aio_fsync $fh;
		1375	}
768	close $fh;	1376	aio_close $fh;
769	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
770	}	1378	}
771	} else {	1379	} else {
772	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
773	}	1381	}
774		1382
775	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
776	} else {	1387	} else {
777	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
778	}	1389	}
779	} else {	1390	} else {
780	aio_unlink $filename;	1391	aio_unlink $filename;
781	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
782	}	1393	}
783
784	#d##TODO# nuke non .map-files if exist
785	if ($filename =~ s/\.map$//) {
786	aio_unlink $filename;
787	aio_unlink "$filename.pst";
788	}
789	}	1394	};
790	}	1395	}
791		1396
792	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
793	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
794		1399
…		…
799		1404
800	sub object_thawer_load {	1405	sub object_thawer_load {
801	my ($filename) = @_;	1406	my ($filename) = @_;
802		1407
803	my ($data, $av);	1408	my ($data, $av);
804
805	#d#TODO remove .map if file does not exist
806	aio_stat $filename and $filename =~ s/\.map$//;
807		1409
808	(aio_load $filename, $data) >= 0	1410	(aio_load $filename, $data) >= 0
809	or return;	1411	or return;
810		1412
811	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
813	or return;	1415	or return;
		1416
814	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
815	}	1419	}
816		1420
		1421	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
819	return ($data, $av);	1426	($data, $av)
820	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
821		1434
822	#############################################################################	1435	#############################################################################
823	# command handling &c	1436	# command handling &c
824		1437
825	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
826		1439
827	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
828	$name.	1441	$name.
829		1442
830	=cut	1443	=cut
…		…
836	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
837		1450
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1452	}
840		1453
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
842		1455
843	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.
844		1461
845	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
846	called.
847		1463
848	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
849		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$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
850	sub register_extcmd {	1486	sub register_extcmd($$) {
851	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
852		1488
853	$EXTCMD{$name} = $cb;	1489	$EXTCMD{$name} = $cb;
854	}	1490	}
855		1491
		1492	sub register_async_extcmd($$) {
		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} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
		1511
856	cf::player->attach (	1512	cf::player->attach (
857	on_command => sub {	1513	on_unknown_command => sub {
858	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
859		1515
860	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
861	or return;	1517	or return;
862		1518
…		…
867	cf::override;	1523	cf::override;
868	},	1524	},
869	on_extcmd => sub {	1525	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
871		1527
872	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1529
874	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1534	$cb->(
877	$pl->ext_reply ($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);
878	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
879	}	1551	}
		1552
880	} else {	1553	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1555	}
883		1556
884	cf::override;	1557	cf::override;
885	},	1558	},
886	);	1559	);
887		1560
		1561	# "readahead" all extensions
888	sub load_extension {	1562	sub cache_extensions {
889	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
890		1564
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1568	}
916	die $@;
917	}	1569	};
918		1570
919	push @EXTS, $pkg;	1571	$grp
		1572	}
		1573
		1574	sub _ext_cfg_reg($$$$) {
		1575	my ($rvar, $varname, $cfgname, $default) = @_;
		1576
		1577	$cfgname = lc $varname
		1578	unless length $cfgname;
		1579
		1580	$EXT_CFG{$cfgname} = [$rvar, $default];
		1581
		1582	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
920	}	1583	}
921		1584
922	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
923	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1594	next unless -r $path;
925	eval {	1595
926	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 $active;
		1667	}
927	1	1668	}
928	} or warn "$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	}
929	}	1681	};
930	}	1682	}
931		1683
932	#############################################################################	1684	#############################################################################
933		1685
		1686	=back
		1687
934	=head2 CORE EXTENSIONS	1688	=head2 CORE EXTENSIONS
935		1689
936	Functions and methods that extend core crossfire objects.	1690	Functions and methods that extend core deliantra objects.
937		1691
938	=cut	1692	=cut
939		1693
940	package cf::player;	1694	package cf::player;
941		1695
…		…
943		1697
944	=head3 cf::player	1698	=head3 cf::player
945		1699
946	=over 4	1700	=over 4
947		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
948	=item cf::player::find $login	1716	=item cf::player::find $login
949		1717
950	Returns the given player object, loading it if necessary (might block).	1718	Returns the given player object, loading it if necessary (might block).
951		1719
952	=cut	1720	=cut
953		1721
954	sub playerdir($) {	1722	sub playerdir($) {
955	cf::localdir	1723	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1724	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1725	}
961		1726
962	sub path($) {	1727	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1728	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1729
965	(playerdir $login) . "/$login.pl"	1730	(playerdir $login) . "/playerdata"
966	}	1731	}
967		1732
968	sub find_active($) {	1733	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1734	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1735	and $cf::PLAYER{$_[0]}->active
…		…
973		1738
974	sub exists($) {	1739	sub exists($) {
975	my ($login) = @_;	1740	my ($login) = @_;
976		1741
977	$cf::PLAYER{$login}	1742	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1743	or !aio_stat path $login
979	}	1744	}
980		1745
981	sub find($) {	1746	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1747	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1748	my $login = $_[0];
984		1749
985	my $guard = cf::lock_acquire "user_find:$login";	1750	my $guard = cf::lock_acquire "user_find:$login";
986		1751
987	$cf::PLAYER{$_[0]} || do {	1752	$cf::PLAYER{$_[0]} || do {
988	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
989	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;
990	$cf::PLAYER{$login} = $pl	1768	$cf::PLAYER{$login} = $pl
991	}	1769	}
992	}	1770	}
993	}	1771	}
		1772
		1773	cf::player->attach (
		1774	on_load => sub {
		1775	my ($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	);
994		1785
995	sub save($) {	1786	sub save($) {
996	my ($pl) = @_;	1787	my ($pl) = @_;
997		1788
998	return if $pl->{deny_save};	1789	return if $pl->{deny_save};
…		…
1003	return if $pl->{deny_save};	1794	return if $pl->{deny_save};
1004		1795
1005	aio_mkdir playerdir $pl, 0770;	1796	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1797	$pl->{last_save} = $cf::RUNTIME;
1007		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
1008	$pl->save_pl ($path);	1804	$pl->save_pl ($path);
1009	Coro::cede;	1805	cf::cede_to_tick;
1010	}	1806	}
1011		1807
1012	sub new($) {	1808	sub new($) {
1013	my ($login) = @_;	1809	my ($login) = @_;
1014		1810
…		…
1020	$cf::PLAYER{$login} = $self;	1816	$cf::PLAYER{$login} = $self;
1021		1817
1022	$self	1818	$self
1023	}	1819	}
1024		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
1025	=item $pl->quit_character	1831	=item $pl->quit_character
1026		1832
1027	Nukes the player without looking back. If logged in, the connection will	1833	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1834	be destroyed. May block for a long time.
1029		1835
1030	=cut	1836	=cut
1031		1837
1032	sub quit_character {	1838	sub quit_character {
1033	my ($pl) = @_;	1839	my ($pl) = @_;
1034		1840
		1841	my $name = $pl->ob->name;
		1842
1035	$pl->{deny_save} = 1;	1843	$pl->{deny_save} = 1;
1036	$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
1037		1845
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1039	$pl->deactivate;	1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
1041	$pl->ns->destroy if $pl->ns;	1853	$pl->ns->destroy if $pl->ns;
1042		1854
1043	my $path = playerdir $pl;	1855	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1856	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1857	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1858	delete $cf::PLAYER{$pl->ob->name};
1047	$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
1048	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;
1049	}	1881	}
1050		1882
1051	=item cf::player::list_logins	1883	=item cf::player::list_logins
1052		1884
1053	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
1054	while and may block, so not sync_job-capable, ever.	1886	while and may block, so not sync_job-capable, ever.
1055		1887
1056	=cut	1888	=cut
1057		1889
1058	sub list_logins {	1890	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1891	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1892	or return [];
1061		1893
1062	my @logins;	1894	my @logins;
1063		1895
1064	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") {
1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1066	aio_read $fh, 0, 512, my $buf, 0 or next;	1903	aio_read $fh, 0, 512, my $buf, 0 or next;
1067	$buf !~ /^password -------------$/m or next; # official not-valid tag	1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
1068		1906
1069	utf8::decode $login;	1907	utf8::decode $login;
1070	push @logins, $login;	1908	push @logins, $login;
1071	}	1909	}
1072		1910
1073	\@logins	1911	\@logins
1074	}	1912	}
1075		1913
1076	=item $player->maps	1914	=item $player->maps
		1915
		1916	=item cf::player::maps $login
1077		1917
1078	Returns an arrayref of map paths that are private for this	1918	Returns an arrayref of map paths that are private for this
1079	player. May block.	1919	player. May block.
1080		1920
1081	=cut	1921	=cut
…		…
1099	}	1939	}
1100		1940
1101	\@paths	1941	\@paths
1102	}	1942	}
1103		1943
		1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1945
		1946	Expand deliantra pod fragments into protocol xml.
		1947
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1948	=item $player->ext_msg ($type, @msg)
1105		1949
1106	Sends an ext reply to the player.	1950	Sends an ext event to the client.
1107		1951
1108	=cut	1952	=cut
1109		1953
1110	sub ext_reply($$$%) {	1954	sub ext_msg($$@) {
1111	my ($self, $id, %msg) = @_;	1955	my ($self, $type, @msg) = @_;
1112		1956
1113	$msg{msgid} = $id;	1957	$self->ns->ext_msg ($type, @msg);
1114
1115	$self->send ("ext " . cf::to_json \%msg);
1116	}	1958	}
1117		1959
1118	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	}
1119		1990
1120	=back	1991	=back
1121
1122		1992
1123	=head3 cf::map	1993	=head3 cf::map
1124		1994
1125	=over 4	1995	=over 4
1126		1996
…		…
1138	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1139	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1140		2010
1141	sub generate_random_map {	2011	sub generate_random_map {
1142	my ($self, $rmp) = @_;	2012	my ($self, $rmp) = @_;
1143	# mit "rum" bekleckern, nicht	2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
1144	$self->_create_random_map (	2016	$self->_create_random_map ($rmp);
1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1148	$rmp->{exit_on_final_map},
1149	$rmp->{xsize}, $rmp->{ysize},
1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1155	(cf::region::find $rmp->{region}), $rmp->{custom}
1156	)
1157	}	2017	}
1158		2018
1159	=item cf::map->register ($regex, $prio)	2019	=item cf::map->register ($regex, $prio)
1160		2020
1161	Register a handler for the map path matching the given regex at the	2021	Register a handler for the map path matching the given regex at the
…		…
1166		2026
1167	sub register {	2027	sub register {
1168	my (undef, $regex, $prio) = @_;	2028	my (undef, $regex, $prio) = @_;
1169	my $pkg = caller;	2029	my $pkg = caller;
1170		2030
1171	no strict;
1172	push @{"$pkg\::ISA"}, __PACKAGE__;	2031	push @{"$pkg\::ISA"}, __PACKAGE__;
1173		2032
1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1175	}	2034	}
1176		2035
1177	# also paths starting with '/'	2036	# also paths starting with '/'
1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1179		2038
1180	sub thawer_merge {	2039	sub thawer_merge {
1181	my ($self, $merge) = @_;	2040	my ($self, $merge) = @_;
1182		2041
1183	# we have to keep some variables in memory intact	2042	# we have to keep some variables in memory intact
1184	local $self->{path};	2043	local $self->{path};
1185	local $self->{load_path};	2044	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		2045
1189	$self->SUPER::thawer_merge ($merge);	2046	$self->SUPER::thawer_merge ($merge);
1190	}	2047	}
1191		2048
1192	sub normalise {	2049	sub normalise {
1193	my ($path, $base) = @_;	2050	my ($path, $base) = @_;
1194		2051
1195	$path = "$path"; # make sure its a string	2052	$path = "$path"; # make sure it's a string
1196		2053
1197	$path =~ s/\.map$//;	2054	$path =~ s/\.map$//;
1198		2055
1199	# map plan:	2056	# map plan:
1200	#	2057	#
…		…
1215	$base =~ s{[^/]+/?$}{};	2072	$base =~ s{[^/]+/?$}{};
1216	$path = "$base/$path";	2073	$path = "$base/$path";
1217	}	2074	}
1218		2075
1219	for ($path) {	2076	for ($path) {
1220	redo if s{//}{/};
1221	redo if s{/\.?/}{/};	2077	redo if s{/\.?/}{/};
1222	redo if s{/[^/]+/\.\./}{/};	2078	redo if s{/[^/]+/\.\./}{/};
1223	}	2079	}
1224		2080
1225	$path	2081	$path
…		…
1239	$self->init; # pass $1 etc.	2095	$self->init; # pass $1 etc.
1240	return $self;	2096	return $self;
1241	}	2097	}
1242	}	2098	}
1243		2099
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
1245	()	2101	()
1246	}	2102	}
1247		2103
		2104	# may re-bless or do other evil things
1248	sub init {	2105	sub init {
1249	my ($self) = @_;	2106	my ($self) = @_;
1250		2107
1251	$self	2108	$self
1252	}	2109	}
…		…
1264		2121
1265	# the original (read-only) location	2122	# the original (read-only) location
1266	sub load_path {	2123	sub load_path {
1267	my ($self) = @_;	2124	my ($self) = @_;
1268		2125
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2126	"$MAPDIR/$self->{path}.map"
1270	}	2127	}
1271		2128
1272	# the temporary/swap location	2129	# the temporary/swap location
1273	sub save_path {	2130	sub save_path {
1274	my ($self) = @_;	2131	my ($self) = @_;
1275		2132
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2134	"$TMPDIR/$path.map"
1278	}	2135	}
1279		2136
1280	# the unique path, undef == no special unique path	2137	# the unique path, undef == no special unique path
1281	sub uniq_path {	2138	sub uniq_path {
1282	my ($self) = @_;	2139	my ($self) = @_;
1283		2140
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2142	"$UNIQUEDIR/$path"
1286	}	2143	}
1287		2144
1288	# and all this just because we cannot iterate over	2145	sub decay_objects {
1289	# all maps in C++...
1290	sub change_all_map_light {
1291	my ($change) = @_;	2146	my ($self) = @_;
1292		2147
1293	$_->change_map_light ($change)	2148	return if $self->{deny_reset};
1294	for grep $_->outdoor, values %cf::MAP;	2149
		2150	$self->do_decay_objects;
1295	}	2151	}
1296		2152
1297	sub unlink_save {	2153	sub unlink_save {
1298	my ($self) = @_;	2154	my ($self) = @_;
1299		2155
1300	utf8::encode (my $save = $self->save_path);	2156	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	2157	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	2158	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1303
1304	#d#TODO remove .map and also nuke
1305	$save =~ s/\.map// or return;#d#
1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1308	}	2159	}
1309		2160
1310	sub load_header_from($) {	2161	sub load_header_from($) {
1311	my ($self, $path) = @_;	2162	my ($self, $path) = @_;
1312		2163
1313	utf8::encode $path;	2164	utf8::encode $path;
1314	#aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1315	# or return;
1316
1317	$self->_load_header ($path)
1318	or return;	2166	or return;
1319		2167
		2168	$self->_load_header ($f)
		2169	or return;
		2170
		2171	local $MAP_LOADING{$self->{path}} = $self;
		2172	$f->resolve_delayed_derefs;
		2173
1320	$self->{load_path} = $path;	2174	$self->{load_path} = $path;
1321		2175
1322	1	2176	1
1323	}	2177	}
1324		2178
		2179	# used to laod the header of an original map
1325	sub load_header_orig {	2180	sub load_header_orig {
1326	my ($self) = @_;	2181	my ($self) = @_;
1327		2182
1328	$self->load_header_from ($self->load_path)	2183	$self->load_header_from ($self->load_path)
1329	}	2184	}
1330		2185
		2186	# used to laod the header of an instantiated map
1331	sub load_header_temp {	2187	sub load_header_temp {
1332	my ($self) = @_;	2188	my ($self) = @_;
1333		2189
1334	$self->load_header_from ($self->save_path)	2190	$self->load_header_from ($self->save_path)
1335	}	2191	}
1336		2192
		2193	# called after loading the header from an instantiated map
1337	sub prepare_temp {	2194	sub prepare_temp {
1338	my ($self) = @_;	2195	my ($self) = @_;
1339		2196
1340	$self->last_access ((delete $self->{last_access})	2197	$self->last_access ((delete $self->{last_access})
1341	|| $cf::RUNTIME); #d#	2198	|| $cf::RUNTIME); #d#
1342	# safety	2199	# safety
1343	$self->{instantiate_time} = $cf::RUNTIME	2200	$self->{instantiate_time} = $cf::RUNTIME
1344	if $self->{instantiate_time} > $cf::RUNTIME;	2201	if $self->{instantiate_time} > $cf::RUNTIME;
1345	}	2202	}
1346		2203
		2204	# called after loading the header from an original map
1347	sub prepare_orig {	2205	sub prepare_orig {
1348	my ($self) = @_;	2206	my ($self) = @_;
1349		2207
1350	$self->{load_original} = 1;	2208	$self->{load_original} = 1;
1351	$self->{instantiate_time} = $cf::RUNTIME;	2209	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1362	$self->load_header_orig	2220	$self->load_header_orig
1363	or return;	2221	or return;
1364	$self->prepare_orig;	2222	$self->prepare_orig;
1365	}	2223	}
1366		2224
		2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
		2227
		2228	$self->default_region (cf::region::find_by_path $self->{path})
		2229	unless $self->default_region;
		2230
1367	1	2231	1
1368	}	2232	}
1369		2233
1370	sub find;	2234	sub find;
1371	sub find {	2235	sub find {
1372	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1373		2237
		2238	cf::cede_to_tick;
		2239
1374	$path = normalise $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1375		2241
		2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1376	cf::lock_wait "map_find:$path";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1377		2244
1378	$cf::MAP{$path} || do {	2245	$cf::MAP{$path} || do {
1379	my $guard = cf::lock_acquire "map_find:$path";
1380	my $map = new_from_path cf::map $path	2246	my $map = new_from_path cf::map $path
1381	or return;	2247	or return;
1382		2248
1383	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1384		2250
1385	$map->load_header	2251	$map->load_header
1386	or return;	2252	or return;
1387		2253
1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1389	# doing this can freeze the server in a sync job, obviously	2255	# doing this can freeze the server in a sync job, obviously
1390	#$cf::WAIT_FOR_TICK->wait;	2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1391	$map->reset;	2259	$map->reset;
1392	undef $guard;
1393	return find $path;	2260	return find $path;
1394	}	2261	}
1395		2262
1396	$cf::MAP{$path} = $map	2263	$cf::MAP{$path} = $map
1397	}	2264	}
1398	}	2265	}
1399		2266
1400	sub pre_load { }	2267	sub pre_load { }
1401	sub post_load { }	2268	#sub post_load { } # XS
1402		2269
1403	sub load {	2270	sub load {
1404	my ($self) = @_;	2271	my ($self) = @_;
1405		2272
1406	local $self->{deny_reset} = 1; # loading can take a long time	2273	local $self->{deny_reset} = 1; # loading can take a long time
1407		2274
1408	my $path = $self->{path};	2275	my $path = $self->{path};
		2276
		2277	{
1409	my $guard = cf::lock_acquire "map_load:$path";	2278	my $guard = cf::lock_acquire "map_data:$path";
1410		2279
1411	return if $self->in_memory != cf::MAP_SWAPPED;	2280	return unless $self->valid;
		2281	return unless $self->state == cf::MAP_SWAPPED;
1412		2282
1413	$self->in_memory (cf::MAP_LOADING);
1414
1415	$self->alloc;	2283	$self->alloc;
1416		2284
1417	$self->pre_load;	2285	$self->pre_load;
		2286	cf::cede_to_tick;
1418		2287
1419	$self->_load_objects ($self->{load_path}, 1)	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)
1420	or return;	2292	or return;
1421		2293
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1423	if delete $self->{load_original};	2295	if delete $self->{load_original};
1424		2296
1425	if (my $uniq = $self->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2298	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2301	$self->clear_unique_items;
1429	$self->_load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1430	}	2306	}
1431	}
1432		2307
1433	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
1434		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1435	# now do the right thing for maps	2317	# now do the right thing for maps
1436	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1437
1438	unless ($self->{deny_activate}) {
1439	$self->decay_objects;
1440	$self->fix_auto_apply;
1441	$self->update_buttons;
1442	Coro::cede;
1443	$self->set_darkness_map;
1444	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	2320	unless $self->difficulty;
1446	Coro::cede;	2321	cf::cede_to_tick;
1447	$self->activate;	2322
		2323	unless ($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);
1448	}	2333	}
1449		2334
1450	$self->post_load;	2335	$self->post_load;
1451		2336
1452	$self->in_memory (cf::MAP_IN_MEMORY);	2337	1
1453	}	2338	}
1454		2339
		2340	# customize the map for a given player, i.e.
		2341	# return the _real_ map. used by e.g. per-player
		2342	# maps to change the path to ~playername/mappath
1455	sub customise_for {	2343	sub customise_for {
1456	my ($self, $ob) = @_;	2344	my ($self, $ob) = @_;
1457		2345
1458	return find "~" . $ob->name . "/" . $self->{path}	2346	return find "~" . $ob->name . "/" . $self->{path}
1459	if $self->per_player;	2347	if $self->per_player;
1460		2348
		2349	# return find "?party/" . $ob->name . "/" . $self->{path}
		2350	# if $self->per_party;
		2351
1461	$self	2352	$self
1462	}
1463
1464	# find and load all maps in the 3x3 area around a map
1465	sub load_diag {
1466	my ($map) = @_;
1467
1468	my @diag; # diagonal neighbours
1469
1470	for (0 .. 3) {
1471	my $neigh = $map->tile_path ($_)
1472	or next;
1473	$neigh = find $neigh, $map
1474	or next;
1475	$neigh->load;
1476
1477	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1478	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1479	}
1480
1481	for (@diag) {
1482	my $neigh = find @$_
1483	or next;
1484	$neigh->load;
1485	}
1486	}	2353	}
1487		2354
1488	sub find_sync {	2355	sub find_sync {
1489	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1490		2357
1491	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, $origin
1492	}	2363	}
1493		2364
1494	sub do_load_sync {	2365	sub do_load_sync {
1495	my ($map) = @_;	2366	my ($map) = @_;
1496		2367
1497	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;
1498	}	2373	}
1499		2374
1500	our %MAP_PREFETCH;	2375	our %MAP_PREFETCH;
1501	our $MAP_PREFETCHER = undef;	2376	our $MAP_PREFETCHER = undef;
1502		2377
1503	sub find_async {	2378	sub find_async {
1504	my ($path, $origin) = @_;	2379	my ($path, $origin, $load) = @_;
1505		2380
1506	$path = normalise $path, $origin && $origin->{path};	2381	$path = normalise $path, $origin;
1507		2382
1508	if (my $map = $cf::MAP{$path}) {	2383	if (my $map = $cf::MAP{$path}) {
1509	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2384	return $map if !$load || $map->linkable;
1510	}	2385	}
1511		2386
1512	undef $MAP_PREFETCH{$path};	2387	$MAP_PREFETCH{$path} |= $load;
		2388
1513	$MAP_PREFETCHER ||= cf::async {	2389	$MAP_PREFETCHER ||= cf::async {
		2390	$Coro::current->{desc} = "map prefetcher";
		2391
1514	while (%MAP_PREFETCH) {	2392	while (%MAP_PREFETCH) {
1515	for my $path (keys %MAP_PREFETCH) {	2393	while (my ($k, $v) = each %MAP_PREFETCH) {
1516	my $map = find $path	2394	if (my $map = find $k) {
1517	or next;
1518	$map->load;	2395	$map->load if $v;
		2396	}
1519		2397
1520	delete $MAP_PREFETCH{$path};	2398	delete $MAP_PREFETCH{$k};
1521	}	2399	}
1522	}	2400	}
1523	undef $MAP_PREFETCHER;	2401	undef $MAP_PREFETCHER;
1524	};	2402	};
1525	$MAP_PREFETCHER->prio (6);	2403	$MAP_PREFETCHER->prio (6);
1526		2404
1527	()	2405	()
1528	}	2406	}
1529		2407
		2408	# common code, used by both ->save and ->swapout
1530	sub save {	2409	sub _save {
1531	my ($self) = @_;	2410	my ($self) = @_;
1532
1533	my $lock = cf::lock_acquire "map_data:" . $self->path;
1534		2411
1535	$self->{last_save} = $cf::RUNTIME;	2412	$self->{last_save} = $cf::RUNTIME;
1536		2413
1537	return unless $self->dirty;	2414	return unless $self->dirty;
1538		2415
…		…
1544	return if $self->{deny_save};	2421	return if $self->{deny_save};
1545		2422
1546	local $self->{last_access} = $self->last_access;#d#	2423	local $self->{last_access} = $self->last_access;#d#
1547		2424
1548	cf::async {	2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
1549	$_->contr->save for $self->players;	2427	$_->contr->save for $self->players;
1550	};	2428	};
		2429
		2430	cf::get_slot 0.02;
1551		2431
1552	if ($uniq) {	2432	if ($uniq) {
1553	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1554	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1555	} else {	2435	} else {
1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2436	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1557	}	2437	}
1558	}	2438	}
1559		2439
		2440	sub save {
		2441	my ($self) = @_;
		2442
		2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2444
		2445	$self->_save;
		2446	}
		2447
1560	sub swap_out {	2448	sub swap_out {
1561	my ($self) = @_;	2449	my ($self) = @_;
1562		2450
1563	# save first because save cedes
1564	$self->save;
1565
1566	my $lock = cf::lock_acquire "map_data:" . $self->path;	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1567		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1568	return if $self->players;	2455	return if $self->players;
1569	return if $self->in_memory != cf::MAP_IN_MEMORY;
1570	return if $self->{deny_save};
1571		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
1572	$self->clear;	2466	$self->clear;
1573	$self->in_memory (cf::MAP_SWAPPED);
1574	}	2467	}
1575		2468
1576	sub reset_at {	2469	sub reset_at {
1577	my ($self) = @_;	2470	my ($self) = @_;
1578		2471
1579	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
1581	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1582		2474
1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2476	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1585		2477
…		…
1596	my ($self) = @_;	2488	my ($self) = @_;
1597		2489
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		2491
1600	return if $self->players;	2492	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#
1602		2493
1603	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	}
1604		2505
1605	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1606		2507
1607	$self->in_memory (cf::MAP_SWAPPED);	2508	$self->deactivate;
		2509	$_->clear_links_to ($self) for values %cf::MAP;
1608	$self->clear;	2510	$self->clear;
1609
1610	$_->clear_links_to ($self) for values %cf::MAP;
1611		2511
1612	$self->unlink_save;	2512	$self->unlink_save;
1613	$self->destroy;	2513	$self->destroy;
1614	}	2514	}
1615		2515
1616	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1617		2517
1618	sub nuke {	2518	sub nuke {
1619	my ($self) = @_;	2519	my ($self) = @_;
1620		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
1621	delete $cf::MAP{$self->path};	2524	delete $cf::MAP{$self->path};
1622		2525
1623	$self->unlink_save;	2526	$self->unlink_save;
1624		2527
1625	bless $self, "cf::map";	2528	bless $self, "cf::map::wrap";
1626	delete $self->{deny_reset};	2529	delete $self->{deny_reset};
1627	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1628	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1629	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1630		2533
1631	$cf::MAP{$self->path} = $self;	2534	$cf::MAP{$self->path} = $self;
		2535	}
1632		2536
1633	$self->reset; # polite request, might not happen	2537	$self->reset; # polite request, might not happen
		2538	}
		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	]
1634	}	2574	}
1635		2575
1636	=item cf::map::unique_maps	2576	=item cf::map::unique_maps
1637		2577
1638	Returns an arrayref of paths of all shared maps that have	2578	Returns an arrayref of paths of all shared maps that have
1639	instantiated unique items. May block.	2579	instantiated unique items. May block.
1640		2580
1641	=cut	2581	=cut
1642		2582
1643	sub unique_maps() {	2583	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2584	[
1645	or return;	2585	map {
1646
1647	my @paths;
1648
1649	for (@$files) {
1650	utf8::decode $_;	2586	utf8::decode $_;
1651	next if /\.pst$/;	2587	s/\.map$//; # TODO future compatibility hack
1652	next unless /^$PATH_SEP/o;	2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1653		2589	? ()
1654	push @paths, cf::map::normalise $_;	2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
1655	}	2592	]
1656
1657	\@paths
1658	}	2593	}
1659		2594
1660	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	}
1661		2626
1662	=back	2627	=back
1663		2628
1664	=head3 cf::object	2629	=head3 cf::object
1665		2630
…		…
1669		2634
1670	=over 4	2635	=over 4
1671		2636
1672	=item $ob->inv_recursive	2637	=item $ob->inv_recursive
1673		2638
1674	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.
1675		2641
1676	=cut	2642	=cut
1677		2643
1678	sub inv_recursive_;	2644	sub inv_recursive_;
1679	sub inv_recursive_ {	2645	sub inv_recursive_ {
…		…
1682		2648
1683	sub inv_recursive {	2649	sub inv_recursive {
1684	inv_recursive_ inv $_[0]	2650	inv_recursive_ inv $_[0]
1685	}	2651	}
1686		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
1687	package cf;	2681	package cf;
1688		2682
1689	=back	2683	=back
1690		2684
1691	=head3 cf::object::player	2685	=head3 cf::object::player
…		…
1697	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>
1698	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
1699	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1700		2694
1701	=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	};
1702		2710
1703	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1704	# with dialog boxes.	2712	# with dialog boxes.
1705	#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
1706	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1708		2716
1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1710		2718
1711	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1712	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1713	} 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 {
1714	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1715	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1716	}	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 (@_);
1717	}	2744	}
1718		2745
1719	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1720		2747
1721	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1734		2761
1735	=item $player_object->enter_link	2762	=item $player_object->enter_link
1736		2763
1737	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}>).
1738		2765
1739	The player should be reasonably safe there for short amounts of time. You	2766	The player should be reasonably safe there for short amounts of time (e.g.
1740	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.
1741		2770
1742	Will never block.	2771	Will never block.
1743		2772
1744	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1745		2774
…		…
1765	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1766	my ($self) = @_;	2795	my ($self) = @_;
1767		2796
1768	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1769		2798
		2799	++$self->{_link_recursion};
		2800
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		2802
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1774		2805
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1776	}	2807	}
1777		2808
1778	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1780		2813
1781	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1782		2815
1783	unless ($map) {	2816	unless ($map) {
1784	# restore original map position	2817	# restore original map position
…		…
1795	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1796	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1797		2830
1798	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1799	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1800	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1801		2834
1802	$map->load;	2835	$map->load;
1803	$map->load_diag;
1804		2836
1805	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
1806	$self->activate_recursive;	2844	$self->activate_recursive;
1807	$self->enter_map ($map, $x, $y);
1808	}
1809
1810	cf::player->attach (
1811	on_logout => sub {
1812	my ($pl) = @_;
1813
1814	# abort map switching before logout
1815	if ($pl->ob->{_link_pos}) {
1816	cf::sync_job {
1817	$pl->ob->leave_link
1818	};
1819	}
1820	},	2845	}
1821	on_login => sub {
1822	my ($pl) = @_;
1823		2846
1824	# try to abort aborted map switching on player login :)	2847	}
1825	# should happen only on crashes
1826	if ($pl->ob->{_link_pos}) {
1827	$pl->ob->enter_link;
1828	(async {
1829	# we need this sleep as the login has a concurrent enter_exit running
1830	# and this sleep increases chances of the player not ending up in scorn
1831	$pl->ob->reply (undef,
1832	"There was an internal problem at your last logout, "
1833	. "the server will try to bring you to your intended destination in a second.",
1834	cf::NDI_RED);
1835	Coro::Timer::sleep 1;
1836	$pl->ob->leave_link;
1837	})->prio (2);
1838	}
1839	},
1840	);
1841		2848
1842	=item $player_object->goto ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1843		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
1844	=cut	2860	=cut
		2861
		2862	our $GOTOGEN;
1845		2863
1846	sub cf::object::player::goto {	2864	sub cf::object::player::goto {
1847	my ($self, $path, $x, $y) = @_;	2865	my ($self, $path, $x, $y, $check, $done) = @_;
		2866
		2867	if ($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;
1848		2875
1849	$self->enter_link;	2876	$self->enter_link;
1850		2877
1851	(async {	2878	(async {
		2879	$Coro::current->{desc} = "player::goto $path $x $y";
		2880
		2881	# *tag paths override both path and x|y
		2882	if ($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
1852	my $map = eval {	2900	my $map = eval {
1853	my $map = cf::map::find $path;	2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
		2903	if ($map) {
1854	$map = $map->customise_for ($self) if $map;	2904	$map = $map->customise_for ($self);
		2905	$map = $check->($map, $x, $y, $self) if $check && $map;
		2906	} else {
		2907	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2908	}
		2909
1855	$map	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 $@;
1856	} or	2916	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1860	})->prio (1);	2924	})->prio (1);
1861	}	2925	}
1862		2926
1863	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
1864		2928
…		…
1884	}	2948	}
1885		2949
1886	sub prepare_random_map {	2950	sub prepare_random_map {
1887	my ($exit) = @_;	2951	my ($exit) = @_;
1888		2952
1889	my $guard = cf::lock_acquire "exit_prepare:$exit";
1890
1891	# all this does is basically replace the /! path by	2953	# all this does is basically replace the /! path by
1892	# a new random map path (?random/...) with a seed	2954	# a new random map path (?random/...) with a seed
1893	# that depends on the exit object	2955	# that depends on the exit object
1894		2956
1895	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
…		…
1897	if ($exit->map) {	2959	if ($exit->map) {
1898	$rmp->{region} = $exit->region->name;	2960	$rmp->{region} = $exit->region->name;
1899	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
1900	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
1901	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
1902	}	2966	}
1903		2967
1904	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
1905		2969
1906	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1907	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2972	my $meta = "$RANDOMDIR/$md5.meta";
1909		2973
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2976	undef $fh;
1913	aio_rename "$meta~", $meta;	2977	aio_rename "$meta~", $meta;
1914		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
1915	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
1916	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
1917	}	2985	}
1918	}	2986	}
1919		2987
1920	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
1921	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
1922		2990
1923	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
1924		2992
1925	if ($exit->slaying eq "/!") {
1926	#TODO: this should de-fi-ni-te-ly not be a sync-job
1927	cf::sync_job { prepare_random_map $exit };
1928	}
1929
1930	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1931	my $hp = $exit->stats->hp;
1932	my $sp = $exit->stats->sp;
1933
1934	$self->enter_link;	2993	$self->enter_link;
1935		2994
1936	(async {	2995	(async {
1937	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
1938	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
		3012	prepare_random_map $exit
		3013	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3014
		3015	$map = $exit->slaying;
		3016
		3017	} elsif ($slaying eq '!up') {
		3018	$map = $exit->map->tile_path (cf::TILE_UP);
		3019	$x = $exit->x;
		3020	$y = $exit->y;
		3021
		3022	} elsif ($slaying eq '!down') {
		3023	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3024	$x = $exit->x;
		3025	$y = $exit->y;
		3026	}
		3027
1939	$self->goto ($slaying, $hp, $sp);	3028	$self->goto ($map, $x, $y);
1940		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
1941	1;	3034	1
1942	}) {	3035	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
1944	. "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. "
1945	. "Please report this to the dungeon master!",	3038	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
1947		3040
1948	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
1949	$self->leave_link;	3042	$self->leave_link;
1950	}	3043	}
1951	})->prio (1);	3044	})->prio (1);
1952	}	3045	}
1953		3046
…		…
1964		3057
1965	sub cf::client::send_drawinfo {	3058	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	3059	my ($self, $text, $flags) = @_;
1967		3060
1968	utf8::encode $text;	3061	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3062	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	3063	}
1971		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	}
1972		3263
1973	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
1974		3265
1975	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
1976	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>,
1977	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>.
1978		3269
1979	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
1980	reliable at some point in the future.	3271	become reliable at some point in the future.
1981		3272
1982	=cut	3273	=cut
1983		3274
1984	sub cf::client::query {	3275	sub cf::client::query {
1985	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
1993	utf8::encode $text;	3284	utf8::encode $text;
1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1995		3286
1996	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
1997	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
1998	}	3291	}
1999		3292
2000	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	},
2001	on_reply => sub {	3299	on_reply => sub {
2002	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
2003		3301
2004	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
2005	# get handled first	3303	# get handled first
…		…
2017	} else {	3315	} else {
2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2019	}	3317	}
2020	}	3318	}
2021	},	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	},
2022	);	3353	);
2023		3354
2024	=item $client->async (\&cb)	3355	=item $client->async (\&cb)
2025		3356
2026	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
…		…
2042		3373
2043	$coro	3374	$coro
2044	}	3375	}
2045		3376
2046	cf::client->attach (	3377	cf::client->attach (
2047	on_destroy => sub {	3378	on_client_destroy => sub {
2048	my ($ns) = @_;	3379	my ($ns) = @_;
2049		3380
2050	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2051	},	3382	},
2052	);	3383	);
…		…
2067	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
2068	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
2069		3400
2070	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
2071		3402
2072	$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	));
2073		3408
2074	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
2075		3410
2076	=pod	3411	=pod
2077		3412
2078	The following fucntions and emthods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
2079		3414
2080	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
2081	cf::object::player player	3420	cf::object::player
2082	cf::player peaceful	3421	player
2083	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
2084		3428
2085	=cut	3429	=cut
2086		3430
2087	for (	3431	for (
2088	["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)],
2089	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
2090	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
2091	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
2092	) {	3438	) {
2093	no strict 'refs';
2094	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
2095	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2096	for @funs;	3441	for @funs;
2097	}	3442	}
2098		3443
…		…
2113		3458
2114	my $qcode = $code;	3459	my $qcode = $code;
2115	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2116	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
2117		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
2118	local $_;	3466	local $_;
2119	local @safe::cf::_safe_eval_args = values %vars;
2120		3467
2121	my $eval =	3468	my $eval =
2122	"do {\n"	3469	"do {\n"
2123	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2124	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
2125	. $code	3472	. $code
2126	. "\n}"	3473	. "\n}"
2127	;	3474	;
2128		3475
		3476	if ($CFG{safe_eval}) {
2129	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
2130	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2131	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	}
2132		3485
2133	if ($@) {	3486	if ($@) {
2134	warn "$@";	3487	warn "$@",
2135	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
2136	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
2137	}	3490	}
2138		3491
2139	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
2140	}	3493	}
2141		3494
…		…
2155	=cut	3508	=cut
2156		3509
2157	sub register_script_function {	3510	sub register_script_function {
2158	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
2159		3512
2160	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
2161	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
2162	}	3515	}
2163		3516
2164	=back	3517	=back
2165		3518
2166	=cut	3519	=cut
2167
2168	#############################################################################
2169
2170	=head2 EXTENSION DATABASE SUPPORT
2171
2172	Crossfire maintains a very simple database for extension use. It can
2173	currently store anything that can be serialised using Storable, which
2174	excludes objects.
2175
2176	The parameter C<$family> should best start with the name of the extension
2177	using it, it should be unique.
2178
2179	=over 4
2180
2181	=item $hashref = cf::db_get $family
2182
2183	Return a hashref for use by the extension C<$family>, which can be
2184	modified. After modifications, you have to call C<cf::db_dirty> or
2185	C<cf::db_sync>.
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database
2190
2191	=item cf::db_put $family => $hashref
2192
2193	Stores the given family hashref into the database. Updates are delayed, if
2194	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_put $family => $key => $value
2197
2198	Stores the given C<$value> in the family hash. Updates are delayed, if you
2199	want the data to be synced to disk immediately, use C<cf::db_sync>.
2200
2201	=item cf::db_dirty
2202
2203	Marks the database as dirty, to be updated at a later time.
2204
2205	=item cf::db_sync
2206
2207	Immediately write the database to disk I<if it is dirty>.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	{
2214	my $path = cf::localdir . "/database.pst";
2215
2216	sub db_load() {
2217	$DB = stat $path ? Storable::retrieve $path : { };
2218	}
2219
2220	my $pid;
2221
2222	sub db_save() {
2223	waitpid $pid, 0 if $pid;
2224	if (0 == ($pid = fork)) {
2225	$DB->{_meta}{version} = 1;
2226	Storable::nstore $DB, "$path~";
2227	rename "$path~", $path;
2228	cf::_exit 0 if defined $pid;
2229	}
2230	}
2231
2232	my $dirty;
2233
2234	sub db_sync() {
2235	db_save if $dirty;
2236	undef $dirty;
2237	}
2238
2239	my $idle = Event->idle (
2240	reentrant => 0,
2241	min => 10,
2242	max => 20,
2243	repeat => 0,
2244	data => WF_AUTOCANCEL,
2245	cb => \&db_sync,
2246	);
2247
2248	sub db_dirty() {
2249	$dirty = 1;
2250	$idle->start;
2251	}
2252
2253	sub db_get($;$) {
2254	@_ >= 2
2255	? $DB->{$_[0]}{$_[1]}
2256	: ($DB->{$_[0]} ||= { })
2257	}
2258
2259	sub db_put($$;$) {
2260	if (@_ >= 3) {
2261	$DB->{$_[0]}{$_[1]} = $_[2];
2262	} else {
2263	$DB->{$_[0]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267
2268	cf::global->attach (
2269	prio => 10000,
2270	on_cleanup => sub {
2271	db_sync;
2272	},
2273	);
2274	}
2275		3520
2276	#############################################################################	3521	#############################################################################
2277	# the server's init and main functions	3522	# the server's init and main functions
2278		3523
		3524	our %FACEHASH; # hash => idx, #d# HACK for http server
		3525
		3526	# internal api, not fianlised
		3527	sub set_face {
		3528	my ($name, $type, $data) = @_;
		3529
		3530	my $idx = cf::face::find $name;
		3531
		3532	if ($idx) {
		3533	delete $FACEHASH{cf::face::get_chksum $idx};
		3534	} else {
		3535	$idx = cf::face::alloc $name;
		3536	}
		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
		3566	{
		3567	my $faces = delete $facedata->{faceinfo};
		3568
		3569	for my $face (sort keys %$faces) {
		3570	my $info = $faces->{$face};
		3571	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		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}} = $idx;#d#
		3579
		3580	cf::cede_to_tick;
		3581	}
		3582
		3583	while (my ($face, $info) = each %$faces) {
		3584	next unless $info->{smooth};
		3585
		3586	my $idx = cf::face::find $face
		3587	or next;
		3588
		3589	if (my $smooth = cf::face::find $info->{smooth}) {
		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	}
		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, $v);
		3641	}
		3642	};
		3643
2279	sub load_resources {	3644	sub load_resource_file($) {
2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	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"
2281	or die "unable to load regions file\n";#d#	3673	or die "unable to load regions file\n";
2282	}
2283		3674
2284	sub cfg_load {	3675	for (cf::region::list) {
2285	open my $fh, "<:utf8", cf::confdir . "/config"	3676	$_->{match} = qr/$_->{match}/
2286	or return;	3677	if exists $_->{match};
		3678	}
		3679	}
2287		3680
2288	local $/;	3681	sub reload_facedata {
2289	*CFG = YAML::Syck::Load <$fh>;	3682	load_facedata "$DATADIR/facedata"
		3683	or die "unable to load facedata\n";
		3684	}
2290		3685
		3686	sub reload_archetypes {
		3687	load_resource_file "$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
2291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3746	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2292		3747
2293	$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};
2294	$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};
2295		3750
2296	if (exists $CFG{mlockall}) {	3751	if (exists $CFG{mlockall}) {
…		…
2300	};	3755	};
2301	warn $@ if $@;	3756	warn $@ if $@;
2302	}	3757	}
2303	}	3758	}
2304		3759
2305	sub init {	3760	sub pidfile() {
2306	load_resources;	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;
2307	}	3786	}
2308		3787
2309	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
2310	# we must not ever block the main coroutine	3798	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	3799	$Coro::idle = sub {
2312	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#
2313	(async {	3801	(async {
2314	Event::one_event;	3802	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3803	EV::loop EV::LOOP_ONESHOT;
2315	})->prio (Coro::PRIO_MAX);	3804	})->prio (Coro::PRIO_MAX);
2316	};	3805	};
2317		3806
2318	cfg_load;	3807	evthread_start IO::AIO::poll_fileno;
2319	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
2320	load_extensions;	3831	load_extensions;
2321		3832
2322	$TICK_WATCHER->start;	3833	utime time, time, $RUNTIMEFILE;
2323	Event::loop;	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;
2324	}	3850	}
2325		3851
2326	#############################################################################	3852	#############################################################################
2327	# initialisation and cleanup	3853	# initialisation and cleanup
2328		3854
2329	# install some emergency cleanup handlers	3855	# install some emergency cleanup handlers
2330	BEGIN {	3856	BEGIN {
		3857	our %SIGWATCHER = ();
2331	for my $signal (qw(INT HUP TERM)) {	3858	for my $signal (qw(INT HUP TERM)) {
2332	Event->signal (	3859	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2333	reentrant => 0,
2334	data => WF_AUTOCANCEL,
2335	signal => $signal,
2336	prio => 0,
2337	cb => sub {
2338	cf::cleanup "SIG$signal";	3860	cf::cleanup "SIG$signal";
2339	},
2340	);	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
2341	}	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 };
2342	}	3951	}
2343		3952
2344	sub emergency_save() {	3953	sub emergency_save() {
2345	my $freeze_guard = cf::freeze_mainloop;	3954	my $freeze_guard = cf::freeze_mainloop;
2346		3955
2347	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;
2348		3962
2349	cf::sync_job {	3963	cf::sync_job {
		3964	cf::write_runtime_sync; # external watchdog should not bark
		3965
2350	# use a peculiar iteration method to avoid tripping on perl	3966	# use a peculiar iteration method to avoid tripping on perl
2351	# refcount bugs in for. also avoids problems with players	3967	# refcount bugs in for. also avoids problems with players
2352	# and maps saved/destroyed asynchronously.	3968	# and maps saved/destroyed asynchronously.
2353	warn "begin emergency player save\n";	3969	info "emergency_perl_save: begin player save\n";
2354	for my $login (keys %cf::PLAYER) {	3970	for my $login (keys %cf::PLAYER) {
2355	my $pl = $cf::PLAYER{$login} or next;	3971	my $pl = $cf::PLAYER{$login} or next;
2356	$pl->valid or next;	3972	$pl->valid or next;
		3973	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2357	$pl->save;	3974	$pl->save;
2358	}	3975	}
2359	warn "end emergency player save\n";	3976	info "emergency_perl_save: end player save\n";
2360		3977
2361	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";
2362	for my $path (keys %cf::MAP) {	3981	for my $path (keys %cf::MAP) {
2363	my $map = $cf::MAP{$path} or next;	3982	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	3983	$map->valid or next;
2365	$map->save;	3984	$map->save;
2366	}	3985	}
2367	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 $DB_ENV;
		4002
		4003	info "emergency_perl_save: starting sync\n";
		4004	IO::AIO::aio_sync sub {
		4005	info "emergency_perl_save: finished sync\n";
		4006	};
		4007
		4008	cf::write_runtime_sync; # external watchdog should not bark
		4009
		4010	trace "emergency_perl_save: flushing outstanding aio requests";
		4011	while (IO::AIO::nreqs || BDB::nreqs) {
		4012	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4013	}
		4014
		4015	cf::write_runtime_sync; # external watchdog should not bark
2368	};	4016	};
2369		4017
2370	warn "leave emergency perl save\n";	4018	info "emergency_perl_save: leave\n";
2371	}	4019	}
2372		4020
		4021	sub post_cleanup {
		4022	my ($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
2373	sub reload() {	4058	sub do_reload_perl() {
2374	# can/must only be called in main	4059	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	4060	unless (in_main) {
2376	warn "can only reload from main coroutine";	4061	error "can only reload from main coroutine";
2377	return;	4062	return;
2378	}	4063	}
2379		4064
2380	warn "reloading...";	4065	return if $RELOAD++;
2381		4066
2382	warn "cancelling server ticker";	4067	my $t1 = AE::time;
2383	$TICK_WATCHER->cancel;
2384		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 {
2385	cf::emergency_save;	4076	#cf::emergency_save;
2386		4077
2387	eval {
2388	# if anything goes wrong in here, we should simply crash as we already saved
2389
2390	warn "syncing database to disk";
2391	cf::db_sync;
2392
2393	warn "cancelling all WF_AUTOCANCEL watchers";
2394	for (Event::all_watchers) {
2395	$_->cancel if $_->data & WF_AUTOCANCEL;
2396	}
2397
2398	warn "flushing outstanding aio requests";
2399	for (;;) {
2400	IO::AIO::flush;
2401	Coro::cede;
2402	last unless IO::AIO::nreqs;
2403	warn "iterate...";
2404	}
2405
2406	warn "cancelling all extension coros";	4078	trace "perl_reload: cancelling all extension coros";
2407	$_->cancel for values %EXT_CORO;	4079	$_->cancel for values %EXT_CORO;
2408	%EXT_CORO = ();	4080	%EXT_CORO = ();
2409		4081
2410	warn "removing commands";	4082	trace "perl_reload: removing commands";
2411	%COMMAND = ();	4083	%COMMAND = ();
2412		4084
2413	warn "removing ext commands";	4085	trace "perl_reload: removing ext/exti commands";
2414	%EXTCMD = ();	4086	%EXTCMD = ();
		4087	%EXTICMD = ();
2415		4088
2416	warn "unloading/nuking all extensions";	4089	trace "perl_reload: unloading/nuking all extensions";
2417	for my $pkg (@EXTS) {	4090	for my $pkg (@EXTS) {
2418	warn "... unloading $pkg";	4091	trace "... unloading $pkg";
2419		4092
2420	if (my $cb = $pkg->can ("unload")) {	4093	if (my $cb = $pkg->can ("unload")) {
2421	eval {	4094	eval {
2422	$cb->($pkg);	4095	$cb->($pkg);
2423	1	4096	1
2424	} 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;
2425	}	4102	}
2426		4103
2427	warn "... nuking $pkg";
2428	Symbol::delete_package $pkg;
2429	}
2430
2431	warn "unloading all perl modules loaded from $LIBDIR";	4104	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2432	while (my ($k, $v) = each %INC) {	4105	while (my ($k, $v) = each %INC) {
2433	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4106	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2434		4107
2435	warn "... unloading $k";	4108	trace "... unloading $k";
2436	delete $INC{$k};	4109	delete $INC{$k};
2437		4110
2438	$k =~ s/\.pm$//;	4111	$k =~ s/\.pm$//;
2439	$k =~ s/\//::/g;	4112	$k =~ s/\//::/g;
2440		4113
2441	if (my $cb = $k->can ("unload_module")) {	4114	if (my $cb = $k->can ("unload_module")) {
2442	$cb->();	4115	$cb->();
		4116	}
		4117
		4118	clear_package $k;
2443	}	4119	}
2444		4120
2445	Symbol::delete_package $k;
2446	}
2447
2448	warn "getting rid of safe::, as good as possible";	4121	trace "perl_reload: getting rid of safe::, as good as possible";
2449	Symbol::delete_package "safe::$_"	4122	clear_package "safe::$_"
2450	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);
2451		4124
2452	warn "unloading cf.pm \"a bit\"";	4125	trace "perl_reload: unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	4126	delete $INC{"cf.pm"};
		4127	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2454		4128
2455	# don't, removes xs symbols, too,	4129	# don't, removes xs symbols, too,
2456	# and global variables created in xs	4130	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	4131	#clear_package __PACKAGE__;
2458		4132
2459	warn "unload completed, starting to reload now";	4133	info "perl_reload: unload completed, starting to reload now";
2460		4134
2461	warn "reloading cf.pm";	4135	trace "perl_reload: reloading cf.pm";
2462	require cf;	4136	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4137	cf::_connect_to_perl_1;
2464		4138
2465	warn "loading config and database again";	4139	trace "perl_reload: loading config and database again";
2466	cf::cfg_load;	4140	cf::reload_config;
2467	cf::db_load;
2468		4141
2469	warn "loading extensions";	4142	trace "perl_reload: loading extensions";
2470	cf::load_extensions;	4143	cf::load_extensions;
2471		4144
		4145	if ($REATTACH_ON_RELOAD) {
2472	warn "reattaching attachments to objects/players";	4146	trace "perl_reload: reattaching attachments to objects/players";
2473	_global_reattach;	4147	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	4148	trace "perl_reload: reattaching attachments to maps";
2475	reattach $_ for values %MAP;	4149	reattach $_ for values %MAP;
		4150	trace "perl_reload: reattaching attachments to players";
		4151	reattach $_ for values %PLAYER;
		4152	}
2476		4153
2477	warn "loading reloadable resources";	4154	cf::_post_init 1;
2478	load_resources;
2479		4155
2480	warn "restarting server ticker";	4156	trace "perl_reload: leaving sync_job";
2481		4157
2482	$TICK_WATCHER->start;	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	};
2483	};	4184	};
2484		4185	}
2485	if ($@) {
2486	warn $@;
2487	warn "error while reloading, exiting.";
2488	exit 1;
2489	}
2490
2491	warn "reloaded";
2492	};
2493
2494	our $RELOAD_WATCHER; # used only during reload
2495		4186
2496	register_command "reload" => sub {	4187	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	4188	my ($who, $arg) = @_;
2498		4189
2499	if ($who->flag (FLAG_WIZ)) {	4190	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	4191	$who->message ("reloading server.");
2501		4192	async {
2502	# doing reload synchronously and two reloads happen back-to-back,	4193	$Coro::current->{desc} = "perl_reload";
2503	# coro crashes during coro_state_free->destroy here.
2504
2505	$RELOAD_WATCHER ||= Event->timer (
2506	reentrant => 0,
2507	after => 0,
2508	data => WF_AUTOCANCEL,
2509	cb => sub {
2510	reload;	4194	reload_perl;
2511	undef $RELOAD_WATCHER;
2512	},
2513	);	4195	};
2514	}	4196	}
2515	};	4197	};
2516		4198
2517	unshift @INC, $LIBDIR;	4199	#############################################################################
2518		4200
2519	my $bug_warning = 0;	4201	my $bug_warning = 0;
2520		4202
2521	$TICK_WATCHER = Event->timer (	4203	sub wait_for_tick() {
2522	reentrant => 0,	4204	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2523	parked => 1,	4205
2524	prio => 0,	4206	$WAIT_FOR_TICK->wait;
2525	at => $NEXT_TICK || $TICK,	4207	}
2526	data => WF_AUTOCANCEL,	4208
2527	cb => sub {	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 {
2528	if ($Coro::current != $Coro::main) {	4218	if ($Coro::current != $Coro::main) {
2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4219	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2530	unless ++$bug_warning > 10;	4220	unless ++$bug_warning > 10;
2531	return;	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: $!";
2532	}	4234	};
		4235	}
2533		4236
2534	$NOW = Event::time;	4237	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2535		4238	$sig->send;
2536	cf::server_tick; # one server iteration	4239	}
2537	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;
2539
2540	$WAIT_FOR_TICK->broadcast;	4240	$WAIT_FOR_TICK->broadcast;
2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2542		4241
2543	Event::sweep;	4242	$LOAD = ($NOW - $TICK_START) / $TICK;
2544	Coro::cede_notself;	4243	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4244
		4245	if (0) {
		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#
2545		4250	}
2546	# my $AFTER = Event::time;
2547	# warn $AFTER - $NOW;#d#
2548
2549	# if we are delayed by four ticks or more, skip them all
2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2551
2552	$TICK_WATCHER->at ($NEXT_TICK);
2553	$TICK_WATCHER->start;
2554	},	4251	}
2555	);	4252	}
2556		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;
2557	IO::AIO::max_poll_time $TICK * 0.1;	4304	IO::AIO::max_poll_time $TICK * 0.1;
		4305	undef $AnyEvent::AIO::WATCHER;
		4306	info "aio initialised";
		4307	}
2558		4308
2559	undef $Coro::AIO::WATCHER;	4309	our $_log_backtrace;
2560	$AIO_POLL_WATCHER = Event->io (	4310	our $_log_backtrace_last;
2561	reentrant => 0,
2562	fd => IO::AIO::poll_fileno,
2563	poll => 'r',
2564	prio => 6,
2565	data => WF_AUTOCANCEL,
2566	cb => \&IO::AIO::poll_cb,
2567	);
2568		4311
2569	$WRITE_RUNTIME_WATCHER = Event->timer (	4312	sub _log_backtrace {
2570	reentrant => 0,	4313	my ($msg, @addr) = @_;
2571	data => WF_AUTOCANCEL,	4314
2572	after => 1,	4315	$msg =~ s/\n$//;
2573	interval => 10,	4316
2574	prio => 6, # keep it lowest so it acts like a watchdog	4317	if ($_log_backtrace_last eq $msg) {
2575	cb => Coro::unblock_sub {	4318	LOG llevInfo, "[ABT] $msg\n";
2576	write_runtime	4319	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
2577	or warn "ERROR: unable to write runtime file: $!";	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;
		4349	};
		4350	} else {
		4351	LOG llevInfo, "[ABT] $msg\n";
		4352	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2578	},	4353	}
2579	);	4354	}
		4355
		4356	# load additional modules
		4357	require "cf/$_.pm" for @EXTRA_MODULES;
		4358	cf::_connect_to_perl_2;
2580		4359
2581	END { cf::emergency_save }	4360	END { cf::emergency_save }
2582		4361
2583	1	4362	1
2584		4363

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