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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.236 by root, Thu Apr 12 14:18:05 2007 UTC vs.
Revision 1.592 by root, Fri Nov 9 00:11:49 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;
9	use Event;	30	use EV;
10	use Opcode;	31	use Opcode;
11	use Safe;	32	use Safe;
12	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
13		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
14	use Coro 3.52 ();	41	use Coro ();
15	use Coro::State;	42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
16	use Coro::Event;	45	use Coro::AnyEvent;
17	use Coro::Timer;	46	use Coro::Timer;
18	use Coro::Signal;	47	use Coro::Signal;
19	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
20	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
21		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
22	use BDB ();	58	use BDB ();
23	use Data::Dumper;	59	use Data::Dumper;
24	use Digest::MD5;
25	use Fcntl;	60	use Fcntl;
26	use YAML::Syck ();	61	use YAML::XS ();
27	use IO::AIO 2.32 ();	62	use IO::AIO ();
28	use Time::HiRes;	63	use Time::HiRes;
29	use Compress::LZF;	64	use Compress::LZF;
		65	use Digest::MD5 ();
		66
		67	AnyEvent::detect;
30		68
31	# configure various modules to our taste	69	# configure various modules to our taste
32	#	70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		79
36	$Event::Eval = 1; # no idea why this is required, but it is	80	# strictly for debugging
37		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
39	$YAML::Syck::ImplicitUnicode = 1;
40
41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42		82
43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		84
		85	our @ORIG_INC;
44		86
45	our %COMMAND = ();	87	our %COMMAND = ();
46	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
47		89
48	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	93	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	94	our %EXT_MAP = (); # pluggable maps
52		95
53	our $RELOAD; # number of reloads so far	96	our $RELOAD; # number of reloads so far, non-zero while in reload
54	our @EVENT;	97	our @EVENT;
55	our $LIBDIR = datadir . "/ext";	98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
56		100
57	our $TICK = MAX_TIME * 1e-6;	101	our $CONFDIR = confdir;
58	our $TICK_WATCHER;	102
59	our $AIO_POLL_WATCHER;	103	our $DATADIR = datadir;
		104	our $LIBDIR = "$DATADIR/ext";
		105	our $PODDIR = "$DATADIR/pod";
		106	our $MAPDIR = "$DATADIR/" . mapdir;
		107
		108	our $LOCALDIR = localdir;
		109	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		110	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		111	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		112	our $RANDOMDIR = "$LOCALDIR/random";
		113	our $BDBDIR = "$LOCALDIR/db";
		114	our $PIDFILE = "$LOCALDIR/pid";
		115	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		116
		117	#our %RESOURCE; # unused
		118
		119	our $OUTPUT_RATE_MIN = 3000;
		120	our $OUTPUT_RATE_MAX = 1000000;
		121
		122	our $MAX_LINKS = 32; # how many chained exits to follow
		123	our $VERBOSE_IO = 1;
		124
		125	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	127	our $NEXT_TICK;
		128	our $USE_FSYNC = 1; # use fsync to write maps - default on
		129
		130	our $BDB_DEADLOCK_WATCHER;
		131	our $BDB_CHECKPOINT_WATCHER;
		132	our $BDB_TRICKLE_WATCHER;
		133	our $DB_ENV;
		134
		135	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		136
		137	our %CFG;
		138	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		139
		140	our $UPTIME; $UPTIME ||= time;
		141	our $RUNTIME = 0;
		142	our $SERVER_TICK = 0;
62	our $NOW;	143	our $NOW;
63	our $USE_FSYNC = 1; # use fsync to write maps - default off
64		144
65	our $BDB_POLL_WATCHER;	145	our (%PLAYER, %PLAYER_LOADING); # all users
66	our $DB_ENV;	146	our (%MAP, %MAP_LOADING ); # all maps
67
68	our %CFG;
69
70	our $UPTIME; $UPTIME ||= time;
71	our $RUNTIME;
72
73	our %PLAYER; # all users
74	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	147	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		148
82	# used to convert map paths into valid unix filenames by replacing / by ∕	149	# used to convert map paths into valid unix filenames by replacing / by ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		151
		152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		153	our $LOADAVG; # same thing, but with alpha-smoothing
		154	our $JITTER; # average jitter
		155	our $TICK_START; # for load detecting purposes
		156
		157	our @POST_INIT;
		158
		159	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		160	our $REALLY_UNLOOP; # never set to true, please :)
		161
		162	our $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
		164
85	binmode STDOUT;	165	binmode STDOUT;
86	binmode STDERR;	166	binmode STDERR;
87		167
88	# read virtual server time, if available	168	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
90	open my $fh, "<", cf::localdir . "/runtime"	170	open my $fh, "<", $RUNTIMEFILE
91	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
92	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
93	}	173	}
94		174
95	mkdir cf::localdir;	175	eval "sub TICK() { $TICK } 1" or die;
96	mkdir cf::localdir . "/" . cf::playerdir;	176
97	mkdir cf::localdir . "/" . cf::tmpdir;	177	mkdir $_
98	mkdir cf::localdir . "/" . cf::uniquedir;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		179
102	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
103		181
104	sub cf::map::normalise;	182	sub cf::map::normalise;
105		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
106	#############################################################################	188	#############################################################################
107		189
		190	%REFLECT = ();
		191	for (@REFLECT) {
		192	my $reflect = JSON::XS::decode_json $_;
		193	$REFLECT{$reflect->{class}} = $reflect;
		194	}
		195
		196	# this is decidedly evil
		197	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		198
		199	#############################################################################
		200
108	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
109		202
110	=over 4	203	=over 4
111		204
112	=item $cf::UPTIME	205	=item $cf::UPTIME
113		206
114	The timestamp of the server start (so not actually an uptime).	207	The timestamp of the server start (so not actually an "uptime").
		208
		209	=item $cf::SERVER_TICK
		210
		211	An unsigned integer that starts at zero when the server is started and is
		212	incremented on every tick.
		213
		214	=item $cf::NOW
		215
		216	The (real) time of the last (current) server tick - updated before and
		217	after tick processing, so this is useful only as a rough "what time is it
		218	now" estimate.
		219
		220	=item $cf::TICK
		221
		222	The interval between each server tick, in seconds.
115		223
116	=item $cf::RUNTIME	224	=item $cf::RUNTIME
117		225
118	The time this server has run, starts at 0 and is increased by $cf::TICK on	226	The time this server has run, starts at 0 and is increased by $cf::TICK on
119	every server tick.	227	every server tick.
120		228
121	=item $cf::LIBDIR	229	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		230	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		231	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
122		232
123	The perl library directory, where extensions and cf-specific modules can	233	Various directories - "/etc", read-only install directory, perl-library
124	be found. It will be added to C<@INC> automatically.	234	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		235	unique-items directory, player file directory, random maps directory and
		236	database environment.
125		237
		238	=item $cf::LOADAVG
		239
		240	The current CPU load on the server (alpha-smoothed), as a value between 0
		241	(none) and 1 (overloaded), indicating how much time is spent on processing
		242	objects per tick. Healthy values are < 0.5.
		243
126	=item $cf::NOW	244	=item $cf::LOAD
127		245
128	The time of the last (current) server tick.	246	The raw value load value from the last tick.
129
130	=item $cf::TICK
131
132	The interval between server ticks, in seconds.
133		247
134	=item %cf::CFG	248	=item %cf::CFG
135		249
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
137	from wherever your confdir points to.	251	from wherever your confdir points to.
138		252
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	253	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		254
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	256	returns directly I<after> the tick processing (and consequently, can only wake one thread
143	processing has been done. Call C<< ->wait >> on them to maximise the	257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
144	window of cpu time available, or simply to synchronise to the server tick.	258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
145		287
146	=back	288	=back
147		289
148	=cut	290	=cut
149		291
150	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
151	*CORE::GLOBAL::warn = sub {	293	sub warn (@) { LOG llevWarn , join "", @_ }
		294	sub info (@) { LOG llevInfo , join "", @_ }
		295	sub debug(@) { LOG llevDebug, join "", @_ }
		296	sub trace(@) { LOG llevTrace, join "", @_ }
		297
		298	$Coro::State::WARNHOOK = sub {
152	my $msg = join "", @_;	299	my $msg = join "", @_;
153	utf8::encode $msg;
154		300
155	$msg .= "\n"	301	$msg .= "\n"
156	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
157		303
		304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		305
158	LOG llevError, $msg;	306	LOG llevWarn, $msg;
159	};	307	};
160	}	308
		309	$Coro::State::DIEHOOK = sub {
		310	return unless $^S eq 0; # "eq", not "=="
		311
		312	error Carp::longmess $_[0];
		313
		314	if (in_main) {#d#
		315	error "DIEHOOK called in main context, Coro bug?\n";#d#
		316	return;#d#
		317	}#d#
		318
		319	# kill coroutine otherwise
		320	Coro::terminate
		321	};
161		322
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	327	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		328	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	329	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
168		330
169	# we bless all objects into (empty) derived classes to force a method lookup	331	# we bless all objects into (empty) derived classes to force a method lookup
170	# within the Safe compartment.	332	# within the Safe compartment.
171	for my $pkg (qw(	333	for my $pkg (qw(
172	cf::global cf::attachable	334	cf::global cf::attachable
173	cf::object cf::object::player	335	cf::object cf::object::player
174	cf::client cf::player	336	cf::client cf::player
175	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
176	cf::map cf::party cf::region	339	cf::party cf::region
177	)) {	340	)) {
178	no strict 'refs';
179	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
180	}	342	}
181		343
182	$Event::DIED = sub {	344	$EV::DIED = sub {
183	warn "error in event callback: @_";	345	warn "error in event callback: $@";
184	};	346	};
		347
		348	#############################################################################
		349
		350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
185		354
186	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
187		356
188	=over 4	357	=over 4
189		358
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	378	$d
210	} || "[unable to dump $_[0]: '$@']";	379	} || "[unable to dump $_[0]: '$@']";
211	}	380	}
212		381
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	382	=item $scalar = cf::load_file $path
214		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($path, $data, $sync) = @_;
		405
		406	my $lock = cf::lock_acquire ("replace_file:$path");
		407
		408	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		409	or return;
		410
		411	$data = $data->() if ref $data;
		412
		413	length $data == aio_write $fh, 0, (length $data), $data, 0
		414	or return;
		415
		416	!$sync
		417	or !aio_fsync $fh
		418	or return;
		419
		420	aio_close $fh
		421	and return;
		422
		423	aio_rename "$path~", $path
		424	and return;
		425
		426	if ($sync) {
		427	$path =~ s%/[^/]*$%%;
		428	aio_pathsync $path;
		429	}
		430
		431	1
		432	}
		433
215	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
216		435
217	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
218		437
219	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
220		439
221	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
222		441
		442	=cut
		443
		444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		445
		446	sub encode_json($) { $json_coder->encode ($_[0]) }
		447	sub decode_json($) { $json_coder->decode ($_[0]) }
		448
		449	=item $ref = cf::decode_storable $scalar
		450
		451	Same as Coro::Storable::thaw, so blocks.
		452
		453	=cut
		454
		455	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		456
		457	=item $ref = cf::decode_yaml $scalar
		458
		459	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		460
		461	=cut
		462
		463	sub decode_yaml($) {
		464	fork_call { YAML::XS::Load $_[0] } @_
		465	}
		466
		467	=item $scalar = cf::unlzf $scalar
		468
		469	Same as Compress::LZF::compress, but takes server ticks into account, so
		470	blocks.
		471
		472	=cut
		473
		474	sub unlzf($) {
		475	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		476	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		477	Compress::LZF::decompress $_[0]
		478	}
		479
		480	=item cf::post_init { BLOCK }
		481
		482	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		483	but I<before> the server starts ticking again.
		484
		485	The codeblock will have a single boolean argument to indicate whether this
		486	is a reload or not.
		487
		488	=cut
		489
		490	sub post_init(&) {
		491	push @POST_INIT, shift;
		492	}
		493
		494	sub _post_init {
		495	trace "running post_init jobs";
		496
		497	# run them in parallel...
		498
		499	my @join;
		500
		501	while () {
		502	push @join, map &Coro::async ($_, 0), @POST_INIT;
		503	@POST_INIT = ();
		504
		505	@join or last;
		506
		507	(pop @join)->join;
		508	}
		509	}
		510
223	=item cf::lock_wait $string	511	=item cf::lock_wait $string
224		512
225	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
226		514
227	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
228		516
229	Wait until the given lock is available and then acquires it and returns	517	Wait until the given lock is available and then acquires it and returns
230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	518	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
231	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
232	returned.	520	returned.
233		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
234	Lock names should begin with a unique identifier (for example, cf::map::find	525	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
236		527
237	=cut	528	=item $locked = cf::lock_active $string
238		529
239	our %LOCK;	530	Return true if the lock is currently active, i.e. somebody has locked it.
		531
		532	=cut
		533
		534	our $LOCKS = new Coro::SemaphoreSet;
240		535
241	sub lock_wait($) {	536	sub lock_wait($) {
242	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
243
244	# wait for lock, if any
245	while ($LOCK{$key}) {
246	push @{ $LOCK{$key} }, $Coro::current;
247	Coro::schedule;
248	}
249	}	538	}
250		539
251	sub lock_acquire($) {	540	sub lock_acquire($) {
252	my ($key) = @_;	541	$LOCKS->guard ($_[0])
		542	}
253		543
254	# wait, to be sure we are not locked	544	sub lock_active($) {
255	lock_wait $key;	545	$LOCKS->count ($_[0]) < 1
256
257	$LOCK{$key} = [];
258
259	Coro::guard {
260	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };
262	}
263	}	546	}
264		547
265	sub freeze_mainloop {	548	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
267		550
268	my $guard = Coro::guard {	551	&Guard::guard (\&tick_inhibit_dec);
269	$TICK_WATCHER->start;	552	}
		553
		554	=item cf::periodic $interval, $cb
		555
		556	Like EV::periodic, but randomly selects a starting point so that the actions
		557	get spread over time.
		558
		559	=cut
		560
		561	sub periodic($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
270	};	621	}
271	$TICK_WATCHER->stop;	622	};
272	$guard	623
		624	sub get_slot($;$$) {
		625	return if tick_inhibit || $Coro::current == $Coro::main;
		626
		627	my ($time, $pri, $name) = @_;
		628
		629	$time = clamp $time, 0.01, $TICK * .6;
		630
		631	my $sig = new Coro::Signal;
		632
		633	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		634	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		635	$SLOT_QUEUE->ready;
		636	$sig->wait;
273	}	637	}
274		638
275	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
276		640
277	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		646
283	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
284		648
285	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
286		650
287	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
290		655
291	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
294	fast or be very important.	659	fast or be very important.
…		…
296	=cut	661	=cut
297		662
298	sub sync_job(&) {	663	sub sync_job(&) {
299	my ($job) = @_;	664	my ($job) = @_;
300		665
301	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
302	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
304		671
305	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	673
307	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
308		675
309	my $busy = 1;	676	my $busy = 1;
310	my @res;	677	my @res;
311		678
312	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	681	@res = eval { $job->() };
314	warn $@ if $@;	682	error $@ if $@;
315	undef $busy;	683	undef $busy;
316	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
317		685
318	while ($busy) {	686	while ($busy) {
319	Coro::cede or Event::one_event;	687	if (Coro::nready) {
		688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
320	}	691	}
		692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
321		697
322	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
323	} else {	699	} else {
324	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
325		701
…		…
345	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
346		722
347	$coro	723	$coro
348	}	724	}
349		725
350	sub write_runtime {	726	=item fork_call { }, @args
351	my $guard = cf::lock_acquire "write_runtime";
352		727
353	my $runtime = cf::localdir . "/runtime";	728	Executes the given code block with the given arguments in a seperate
		729	process, returning the results. Everything must be serialisable with
		730	Coro::Storable. May, of course, block. Note that the executed sub may
		731	never block itself or use any form of event handling.
354		732
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	733	=cut
356	or return;
357		734
358	my $value = $cf::RUNTIME + 90 + 10;	735	sub post_fork {
359	# 10 is the runtime save interval, for a monotonic clock	736	reset_signals;
360	# 60 allows for the watchdog to kill the server.	737	}
361		738
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	739	sub fork_call(&@) {
363	and return;	740	my ($cb, @args) = @_;
364		741
365	# always fsync - this file is important	742	# we seemingly have to make a local copy of the whole thing,
366	aio_fsync $fh	743	# otherwise perl prematurely frees the stuff :/
367	and return;	744	# TODO: investigate and fix (likely this will be rather laborious)
368		745
369	close $fh	746	my @res = Coro::Util::fork_eval {
370	or return;	747	cf::post_fork;
		748	&$cb
		749	} @args;
371		750
372	aio_rename "$runtime~", $runtime	751	wantarray ? @res : $res[-1]
373	and return;	752	}
374		753
		754	sub objinfo {
375	1	755	(
		756	"counter value" => cf::object::object_count,
		757	"objects created" => cf::object::create_count,
		758	"objects destroyed" => cf::object::destroy_count,
		759	"freelist size" => cf::object::free_count,
		760	"allocated objects" => cf::object::objects_size,
		761	"active objects" => cf::object::actives_size,
		762	)
		763	}
		764
		765	=item $coin = coin_from_name $name
		766
		767	=cut
		768
		769	our %coin_alias = (
		770	"silver" => "silvercoin",
		771	"silvercoin" => "silvercoin",
		772	"silvercoins" => "silvercoin",
		773	"gold" => "goldcoin",
		774	"goldcoin" => "goldcoin",
		775	"goldcoins" => "goldcoin",
		776	"platinum" => "platinacoin",
		777	"platinumcoin" => "platinacoin",
		778	"platinumcoins" => "platinacoin",
		779	"platina" => "platinacoin",
		780	"platinacoin" => "platinacoin",
		781	"platinacoins" => "platinacoin",
		782	"royalty" => "royalty",
		783	"royalties" => "royalty",
		784	);
		785
		786	sub coin_from_name($) {
		787	$coin_alias{$_[0]}
		788	? cf::arch::find $coin_alias{$_[0]}
		789	: undef
		790	}
		791
		792	=item $value = cf::db_get $family => $key
		793
		794	Returns a single value from the environment database.
		795
		796	=item cf::db_put $family => $key => $value
		797
		798	Stores the given C<$value> in the family. It can currently store binary
		799	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		800
		801	=item $db = cf::db_table "name"
		802
		803	Create and/or open a new database table. The string must not be "db" and must be unique
		804	within each server.
		805
		806	=cut
		807
		808	sub db_table($) {
		809	cf::error "db_get called from main context"
		810	if $Coro::current == $Coro::main;
		811
		812	my ($name) = @_;
		813	my $db = BDB::db_create $DB_ENV;
		814
		815	eval {
		816	$db->set_flags (BDB::CHKSUM);
		817
		818	utf8::encode $name;
		819	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		820	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		821	cf::cleanup "db_open(db): $!" if $!;
		822	};
		823	cf::cleanup "db_open(db): $@" if $@;
		824
		825	$db
		826	}
		827
		828	our $DB;
		829
		830	sub db_init {
		831	$DB ||= db_table "db";
		832	}
		833
		834	sub db_get($$) {
		835	my $key = "$_[0]/$_[1]";
		836
		837	cf::error "db_get called from main context"
		838	if $Coro::current == $Coro::main;
		839
		840	BDB::db_get $DB, undef, $key, my $data;
		841
		842	$! ? ()
		843	: $data
		844	}
		845
		846	sub db_put($$$) {
		847	BDB::dbreq_pri 4;
		848	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		849	}
		850
		851	=item cf::cache $id => [$paths...], $processversion => $process
		852
		853	Generic caching function that returns the value of the resource $id,
		854	caching and regenerating as required.
		855
		856	This function can block.
		857
		858	=cut
		859
		860	sub cache {
		861	my ($id, $src, $processversion, $process) = @_;
		862
		863	my $meta =
		864	join "\x00",
		865	$processversion,
		866	map {
		867	aio_stat $_
		868	and Carp::croak "$_: $!";
		869
		870	($_, (stat _)[7,9])
		871	} @$src;
		872
		873	my $dbmeta = db_get cache => "$id/meta";
		874	if ($dbmeta ne $meta) {
		875	# changed, we may need to process
		876
		877	my @data;
		878	my $md5;
		879
		880	for (0 .. $#$src) {
		881	$data[$_] = load_file $src->[$_];
		882	}
		883
		884	# if processing is expensive, check
		885	# checksum first
		886	if (1) {
		887	$md5 =
		888	join "\x00",
		889	$processversion,
		890	map {
		891	cf::cede_to_tick;
		892	($src->[$_], Digest::MD5::md5_hex $data[$_])
		893	} 0.. $#$src;
		894
		895
		896	my $dbmd5 = db_get cache => "$id/md5";
		897	if ($dbmd5 eq $md5) {
		898	db_put cache => "$id/meta", $meta;
		899
		900	return db_get cache => "$id/data";
		901	}
		902	}
		903
		904	my $t1 = Time::HiRes::time;
		905	my $data = $process->(\@data);
		906	my $t2 = Time::HiRes::time;
		907
		908	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		909
		910	db_put cache => "$id/data", $data;
		911	db_put cache => "$id/md5" , $md5;
		912	db_put cache => "$id/meta", $meta;
		913
		914	return $data;
		915	}
		916
		917	db_get cache => "$id/data"
376	}	918	}
377		919
378	=item cf::datalog type => key => value, ...	920	=item cf::datalog type => key => value, ...
379		921
380	Log a datalog packet of the given type with the given key-value pairs.	922	Log a datalog packet of the given type with the given key-value pairs.
381		923
382	=cut	924	=cut
383		925
384	sub datalog($@) {	926	sub datalog($@) {
385	my ($type, %kv) = @_;	927	my ($type, %kv) = @_;
386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
387	}	929	}
388		930
389	=back	931	=back
390		932
391	=cut	933	=cut
392		934
393	#############################################################################	935	#############################################################################
394		936
395	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
396		938
397	Many objects in crossfire are so-called attachable objects. That means you can	939	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	940	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
400		942
401	In the following description, CLASS can be any of C<global>, C<object>	943	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	944	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	945	Deliantra).
404		946
405	=over 4	947	=over 4
406		948
407	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
408		950
…		…
452	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
453		995
454	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
456		998
457	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	1000	that are attached at load/instantiate time, thus the need for a name.
459		1001
460	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
461		1003
462	=over 4	1004	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
572		1114
573	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		1119
578	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
580		1122
581	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
586		1128
587	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
588	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
589		1131
590	} elsif (ref $type) {	1132	} elsif (ref $type) {
591	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
592		1134
593	} else {	1135	} else {
594	shift @arg;	1136	shift @arg;
595	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
596	}	1138	}
597	}	1139	}
598	}	1140	}
599		1141
600	sub _object_attach {	1142	sub _object_attach {
…		…
610	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
611	}	1153	}
612		1154
613	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
614	} else {	1156	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
616	}	1158	}
617		1159
618	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
619	}	1161	}
620		1162
…		…
622	if (ref $_[0]) {	1164	if (ref $_[0]) {
623	_object_attach @_;	1165	_object_attach @_;
624	} else {	1166	} else {
625	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
626	}	1168	}
		1169	_recalc_want;
627	};	1170	};
628		1171
629	# all those should be optimised	1172	# all those should be optimised
630	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
635	reattach ($obj);	1178	reattach ($obj);
636	} else {	1179	} else {
637	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
638	}	1181	}
		1182	_recalc_want;
639	};	1183	};
640		1184
641	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
643		1187
…		…
658	";	1202	";
659	die if $@;	1203	die if $@;
660	}	1204	}
661		1205
662	our $override;	1206	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1207	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		1208
665	sub override {	1209	sub override {
666	$override = 1;	1210	$override = 1;
667	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
668	}	1212	}
669		1213
670	sub do_invoke {	1214	sub do_invoke {
671	my $event = shift;	1215	my $event = shift;
672	my $callbacks = shift;	1216	my $callbacks = shift;
673		1217
674	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
675		1219
676	local $override;	1220	local $override;
677		1221
678	for (@$callbacks) {	1222	for (@$callbacks) {
679	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
680		1224
681	if ($@) {	1225	if ($@) {
682	warn "$@";
683	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
684	override;	1227	override;
685	}	1228	}
686		1229
687	return 1 if $override;	1230	return 1 if $override;
688	}	1231	}
689		1232
690	0	1233	0
691	}	1234	}
692		1235
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1237
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1239
697	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
698		1241
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1242	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	1243	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1245
703	=back	1246	=back
704		1247
705	=cut	1248	=cut
706		1249
707	#############################################################################	1250	#############################################################################
708	# object support	1251	# object support
		1252
		1253	sub _object_equal($$);
		1254	sub _object_equal($$) {
		1255	my ($a, $b) = @_;
		1256
		1257	return 0 unless (ref $a) eq (ref $b);
		1258
		1259	if ("HASH" eq ref $a) {
		1260	my @ka = keys %$a;
		1261	my @kb = keys %$b;
		1262
		1263	return 0 if @ka != @kb;
		1264
		1265	for (0 .. $#ka) {
		1266	return 0 unless $ka[$_] eq $kb[$_];
		1267	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1268	}
		1269
		1270	} elsif ("ARRAY" eq ref $a) {
		1271
		1272	return 0 if @$a != @$b;
		1273
		1274	for (0 .. $#$a) {
		1275	return 0 unless _object_equal $a->[$_], $b->[$_];
		1276	}
		1277
		1278	} elsif ($a ne $b) {
		1279	return 0;
		1280	}
		1281
		1282	1
		1283	}
		1284
		1285	our $SLOW_MERGES;#d#
		1286	sub _can_merge {
		1287	my ($ob1, $ob2) = @_;
		1288
		1289	++$SLOW_MERGES;#d#
		1290
		1291	# we do the slow way here
		1292	return _object_equal $ob1, $ob2
		1293	}
709		1294
710	sub reattach {	1295	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1297	my ($obj) = @_;
713		1298
		1299	# no longer needed after getting rid of delete_package?
714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1300	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
715		1301
716	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
717		1303
718	@$registry = ();	1304	@$registry = ();
719		1305
…		…
724	for (@$attach) {	1310	for (@$attach) {
725	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
726	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
727	}	1313	}
728	} else {	1314	} else {
729	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
730	}	1316	}
731	}	1317	}
732	}	1318	}
733		1319
734	cf::attachable->attach (	1320	cf::attachable->attach (
735	prio => -1000000,	1321	prio => -1000000,
736	on_instantiate => sub {	1322	on_instantiate => sub {
737	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
738		1324
739	$data = from_json $data;	1325	$data = decode_json $data;
740		1326
741	for (@$data) {	1327	for (@$data) {
742	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
743		1329
744	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1346	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
762		1348
763	sync_job {	1349	sync_job {
764	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
767		1355
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	aio_fsync $fh if $cf::USE_FSYNC;	1359	if ($cf::USE_FSYNC) {
		1360	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1361	aio_fsync $fh;
		1362	}
772	close $fh;	1363	aio_close $fh;
773		1364
774	if (@$objs) {	1365	if (@$objs) {
775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1366	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
776	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
779	aio_fsync $fh if $cf::USE_FSYNC;	1370	if ($cf::USE_FSYNC) {
		1371	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1372	aio_fsync $fh;
		1373	}
780	close $fh;	1374	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
782	}	1376	}
783	} else {	1377	} else {
784	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
785	}	1379	}
786		1380
787	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1385	} else {
789	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
790	}	1387	}
791	} else {	1388	} else {
792	aio_unlink $filename;	1389	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
794	}	1391	}
795	}	1392	};
796	}	1393	}
797		1394
798	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
800		1397
…		…
812	or return;	1409	or return;
813		1410
814	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
816	or return;	1413	or return;
		1414
817	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
818	}	1417	}
819		1418
		1419	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
822	return ($data, $av);	1424	($data, $av)
823	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
824		1432
825	#############################################################################	1433	#############################################################################
826	# command handling &c	1434	# command handling &c
827		1435
828	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1450	}
843		1451
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1453
846	Register a callbackf ro execution when the client sends an extcmd packet.	1454	Register a callback for execution when the client sends an (synchronous)
		1455	extcmd packet. Ext commands will be processed in the order they are
		1456	received by the server, like other user commands. The first argument is
		1457	the logged-in player. Ext commands can only be processed after a player
		1458	has logged in successfully.
847		1459
848	If the callback returns something, it is sent back as if reply was being	1460	If the callback returns something, it is sent back as if reply was being
849	called.	1461	called.
850		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
851	=cut	1474	=cut
852		1475
853	sub register_extcmd {	1476	sub register_extcmd {
854	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
855		1478
856	$EXTCMD{$name} = $cb;	1479	$EXTCMD{$name} = $cb;
857	}	1480	}
858		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
		1489
859	cf::player->attach (	1490	cf::player->attach (
860	on_command => sub {	1491	on_unknown_command => sub {
861	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
862		1493
863	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
864	or return;	1495	or return;
865		1496
…		…
870	cf::override;	1501	cf::override;
871	},	1502	},
872	on_extcmd => sub {	1503	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
874		1505
875	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1507
877	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
883	} else {	1520	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1522	}
886		1523
887	cf::override;	1524	cf::override;
888	},	1525	},
889	);	1526	);
890		1527
		1528	# "readahead" all extensions
891	sub load_extension {	1529	sub cache_extensions {
892	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
893		1531
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1535	}
919	die $@;
920	}	1536	};
921		1537
922	push @EXTS, $pkg;	1538	$grp
		1539	}
		1540
		1541	sub _ext_cfg_reg($$$$) {
		1542	my ($rvar, $varname, $cfgname, $default) = @_;
		1543
		1544	$cfgname = lc $varname
		1545	unless length $cfgname;
		1546
		1547	$EXT_CFG{$cfgname} = [$rvar, $default];
		1548
		1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
923	}	1550	}
924		1551
925	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
926	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1561	next unless -r $path;
928	eval {	1562
929	load_extension $ext;	1563	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1564	my $base = $1;
		1565	my $pkg = $1;
		1566	$pkg =~ s/[^[:word:]]/_/g;
		1567	$pkg = "ext::$pkg";
		1568
		1569	open my $fh, "<:utf8", $path
		1570	or die "$path: $!";
		1571
		1572	my $source = do { local $/; <$fh> };
		1573
		1574	my %ext = (
		1575	path => $path,
		1576	base => $base,
		1577	pkg => $pkg,
		1578	);
		1579
		1580	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1581	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1582
		1583	$ext{source} =
		1584	"package $pkg; use common::sense;\n"
		1585	. "#line 1 \"$path\"\n{\n"
		1586	. $source
		1587	. "\n};\n1";
		1588
		1589	$todo{$base} = \%ext;
		1590	}
		1591
		1592	my $pass = 0;
		1593	my %done;
		1594	while (%todo) {
		1595	my $progress;
		1596
		1597	++$pass;
		1598
		1599	ext:
		1600	while (my ($k, $v) = each %todo) {
		1601	for (split /,\s*/, $v->{meta}{depends}) {
		1602	next ext
		1603	unless exists $done{$_};
		1604	}
		1605
		1606	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1607
		1608	my $source = $v->{source};
		1609
		1610	# support "CONF varname :confname = default" pseudo-statements
		1611	$source =~ s{
		1612	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1613	}{
		1614	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1615	}gmxe;
		1616
		1617	my $active = eval $source;
		1618
		1619	if (length $@) {
		1620	error "$v->{path}: $@\n";
		1621
		1622	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1623	if exists $v->{meta}{mandatory};
		1624
		1625	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1626	delete $todo{$k};
		1627	} else {
		1628	$done{$k} = delete $todo{$k};
		1629	push @EXTS, $v->{pkg};
		1630	$progress = 1;
		1631
		1632	info "$v->{base}: extension inactive.\n"
		1633	unless $active;
		1634	}
930	1	1635	}
931	} or warn "$ext not loaded: $@";	1636
		1637	unless ($progress) {
		1638	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1639
		1640	while (my ($k, $v) = each %todo) {
		1641	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1642	if exists $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
		1647	}
932	}	1648	};
933	}	1649	}
934		1650
935	#############################################################################	1651	#############################################################################
936		1652
		1653	=back
		1654
937	=head2 CORE EXTENSIONS	1655	=head2 CORE EXTENSIONS
938		1656
939	Functions and methods that extend core crossfire objects.	1657	Functions and methods that extend core deliantra objects.
940		1658
941	=cut	1659	=cut
942		1660
943	package cf::player;	1661	package cf::player;
944		1662
…		…
946		1664
947	=head3 cf::player	1665	=head3 cf::player
948		1666
949	=over 4	1667	=over 4
950		1668
		1669	=item cf::player::num_playing
		1670
		1671	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1672
		1673	=cut
		1674
		1675	sub num_playing {
		1676	scalar grep
		1677	$_->ob->map
		1678	&& !$_->hidden
		1679	&& !$_->ob->flag (cf::FLAG_WIZ),
		1680	cf::player::list
		1681	}
		1682
951	=item cf::player::find $login	1683	=item cf::player::find $login
952		1684
953	Returns the given player object, loading it if necessary (might block).	1685	Returns the given player object, loading it if necessary (might block).
954		1686
955	=cut	1687	=cut
956		1688
957	sub playerdir($) {	1689	sub playerdir($) {
958	cf::localdir	1690	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1691	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1692	}
964		1693
965	sub path($) {	1694	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1695	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
976		1705
977	sub exists($) {	1706	sub exists($) {
978	my ($login) = @_;	1707	my ($login) = @_;
979		1708
980	$cf::PLAYER{$login}	1709	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1710	or !aio_stat path $login
982	}	1711	}
983		1712
984	sub find($) {	1713	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1714	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1715	my $login = $_[0];
…		…
993	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
994	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
995	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
996	aio_unlink +(playerdir $login) . "/$login.pl";	1725	aio_unlink +(playerdir $login) . "/$login.pl";
997		1726
998	my $pl = load_pl path $login	1727	my $f = new_from_file cf::object::thawer path $login
999	or return;	1728	or return;
		1729
		1730	my $pl = cf::player::load_pl $f
		1731	or return;
		1732
		1733	local $cf::PLAYER_LOADING{$login} = $pl;
		1734	$f->resolve_delayed_derefs;
1000	$cf::PLAYER{$login} = $pl	1735	$cf::PLAYER{$login} = $pl
1001	}	1736	}
1002	}	1737	}
1003	}	1738	}
		1739
		1740	cf::player->attach (
		1741	on_load => sub {
		1742	my ($pl, $path) = @_;
		1743
		1744	# restore slots saved in save, below
		1745	my $slots = delete $pl->{_slots};
		1746
		1747	$pl->ob->current_weapon ($slots->[0]);
		1748	$pl->combat_ob ($slots->[1]);
		1749	$pl->ranged_ob ($slots->[2]);
		1750	},
		1751	);
1004		1752
1005	sub save($) {	1753	sub save($) {
1006	my ($pl) = @_;	1754	my ($pl) = @_;
1007		1755
1008	return if $pl->{deny_save};	1756	return if $pl->{deny_save};
…		…
1013	return if $pl->{deny_save};	1761	return if $pl->{deny_save};
1014		1762
1015	aio_mkdir playerdir $pl, 0770;	1763	aio_mkdir playerdir $pl, 0770;
1016	$pl->{last_save} = $cf::RUNTIME;	1764	$pl->{last_save} = $cf::RUNTIME;
1017		1765
		1766	cf::get_slot 0.01;
		1767
		1768	# save slots, to be restored later
		1769	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1770
1018	$pl->save_pl ($path);	1771	$pl->save_pl ($path);
1019	Coro::cede;	1772	cf::cede_to_tick;
1020	}	1773	}
1021		1774
1022	sub new($) {	1775	sub new($) {
1023	my ($login) = @_;	1776	my ($login) = @_;
1024		1777
…		…
1030	$cf::PLAYER{$login} = $self;	1783	$cf::PLAYER{$login} = $self;
1031		1784
1032	$self	1785	$self
1033	}	1786	}
1034		1787
		1788	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1789
		1790	=cut
		1791
		1792	sub send_msg {
		1793	my $ns = shift->ns
		1794	or return;
		1795	$ns->send_msg (@_);
		1796	}
		1797
1035	=item $pl->quit_character	1798	=item $pl->quit_character
1036		1799
1037	Nukes the player without looking back. If logged in, the connection will	1800	Nukes the player without looking back. If logged in, the connection will
1038	be destroyed. May block for a long time.	1801	be destroyed. May block for a long time.
1039		1802
…		…
1043	my ($pl) = @_;	1806	my ($pl) = @_;
1044		1807
1045	my $name = $pl->ob->name;	1808	my $name = $pl->ob->name;
1046		1809
1047	$pl->{deny_save} = 1;	1810	$pl->{deny_save} = 1;
1048	$pl->password ("*"); # this should lock out the player until we nuked the dir	1811	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1049		1812
1050	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1051	$pl->deactivate;	1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1052	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
1053	$pl->ns->destroy if $pl->ns;	1820	$pl->ns->destroy if $pl->ns;
1054		1821
1055	my $path = playerdir $pl;	1822	my $path = playerdir $pl;
1056	my $temp = "$path~$cf::RUNTIME~deleting~";	1823	my $temp = "$path~$cf::RUNTIME~deleting~";
1057	aio_rename $path, $temp;	1824	aio_rename $path, $temp;
…		…
1086	while and may block, so not sync_job-capable, ever.	1853	while and may block, so not sync_job-capable, ever.
1087		1854
1088	=cut	1855	=cut
1089		1856
1090	sub list_logins {	1857	sub list_logins {
1091	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1858	my $dirs = aio_readdir $PLAYERDIR
1092	or return [];	1859	or return [];
1093		1860
1094	my @logins;	1861	my @logins;
1095		1862
1096	for my $login (@$dirs) {	1863	for my $login (@$dirs) {
		1864	my $path = path $login;
		1865
		1866	# a .pst is a dead give-away for a valid player
		1867	# if no pst file found, open and chekc for blocked users
		1868	if (aio_stat "$path.pst") {
1097	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1098	aio_read $fh, 0, 512, my $buf, 0 or next;	1870	aio_read $fh, 0, 512, my $buf, 0 or next;
1099	$buf !~ /^password -------------$/m or next; # official not-valid tag	1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
1100		1873
1101	utf8::decode $login;	1874	utf8::decode $login;
1102	push @logins, $login;	1875	push @logins, $login;
1103	}	1876	}
1104		1877
1105	\@logins	1878	\@logins
1106	}	1879	}
1107		1880
1108	=item $player->maps	1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
1109		1884
1110	Returns an arrayref of map paths that are private for this	1885	Returns an arrayref of map paths that are private for this
1111	player. May block.	1886	player. May block.
1112		1887
1113	=cut	1888	=cut
…		…
1131	}	1906	}
1132		1907
1133	\@paths	1908	\@paths
1134	}	1909	}
1135		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
1136	=item $player->ext_reply ($msgid, %msg)	1915	=item $player->ext_reply ($msgid, @msg)
1137		1916
1138	Sends an ext reply to the player.	1917	Sends an ext reply to the player.
1139		1918
1140	=cut	1919	=cut
1141		1920
1142	sub ext_reply($$%) {	1921	sub ext_reply($$@) {
1143	my ($self, $id, %msg) = @_;	1922	my ($self, $id, @msg) = @_;
1144		1923
1145	$msg{msgid} = $id;	1924	$self->ns->ext_reply ($id, @msg)
1146
1147	$self->send ("ext " . cf::to_json \%msg);
1148	}	1925	}
1149		1926
1150	=item $player->ext_event ($type, %msg)	1927	=item $player->ext_msg ($type, @msg)
1151		1928
1152	Sends an ext event to the client.	1929	Sends an ext event to the client.
1153		1930
1154	=cut	1931	=cut
1155		1932
1156	sub ext_event($$%) {	1933	sub ext_msg($$@) {
1157	my ($self, $type, %msg) = @_;	1934	my ($self, $type, @msg) = @_;
1158		1935
1159	$self->ns->ext_event ($type, %msg);	1936	$self->ns->ext_msg ($type, @msg);
1160	}	1937	}
1161		1938
1162	package cf;	1939	=head3 cf::region
		1940
		1941	=over 4
		1942
		1943	=cut
		1944
		1945	package cf::region;
		1946
		1947	=item cf::region::find_by_path $path
		1948
		1949	Tries to decuce the likely region for a map knowing only its path.
		1950
		1951	=cut
		1952
		1953	sub find_by_path($) {
		1954	my ($path) = @_;
		1955
		1956	$path =~ s/^~[^\/]*//; # skip ~login
		1957
		1958	my ($match, $specificity);
		1959
		1960	for my $region (list) {
		1961	if ($region->{match} && $path =~ $region->{match}) {
		1962	($match, $specificity) = ($region, $region->specificity)
		1963	if $region->specificity > $specificity;
		1964	}
		1965	}
		1966
		1967	$match
		1968	}
1163		1969
1164	=back	1970	=back
1165
1166		1971
1167	=head3 cf::map	1972	=head3 cf::map
1168		1973
1169	=over 4	1974	=over 4
1170		1975
…		…
1182	our $MAX_RESET = 3600;	1987	our $MAX_RESET = 3600;
1183	our $DEFAULT_RESET = 3000;	1988	our $DEFAULT_RESET = 3000;
1184		1989
1185	sub generate_random_map {	1990	sub generate_random_map {
1186	my ($self, $rmp) = @_;	1991	my ($self, $rmp) = @_;
1187	# mit "rum" bekleckern, nicht	1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
1188	$self->_create_random_map (	1995	$self->_create_random_map ($rmp);
1189	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1190	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1191	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1192	$rmp->{exit_on_final_map},
1193	$rmp->{xsize}, $rmp->{ysize},
1194	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1195	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1196	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1197	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1198	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1199	(cf::region::find $rmp->{region}), $rmp->{custom}
1200	)
1201	}	1996	}
1202		1997
1203	=item cf::map->register ($regex, $prio)	1998	=item cf::map->register ($regex, $prio)
1204		1999
1205	Register a handler for the map path matching the given regex at the	2000	Register a handler for the map path matching the given regex at the
…		…
1210		2005
1211	sub register {	2006	sub register {
1212	my (undef, $regex, $prio) = @_;	2007	my (undef, $regex, $prio) = @_;
1213	my $pkg = caller;	2008	my $pkg = caller;
1214		2009
1215	no strict;
1216	push @{"$pkg\::ISA"}, __PACKAGE__;	2010	push @{"$pkg\::ISA"}, __PACKAGE__;
1217		2011
1218	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1219	}	2013	}
1220		2014
1221	# also paths starting with '/'	2015	# also paths starting with '/'
1222	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1223		2017
1224	sub thawer_merge {	2018	sub thawer_merge {
1225	my ($self, $merge) = @_;	2019	my ($self, $merge) = @_;
1226		2020
1227	# we have to keep some variables in memory intact	2021	# we have to keep some variables in memory intact
1228	local $self->{path};	2022	local $self->{path};
1229	local $self->{load_path};	2023	local $self->{load_path};
1230	local $self->{deny_save};
1231	local $self->{deny_reset};
1232		2024
1233	$self->SUPER::thawer_merge ($merge);	2025	$self->SUPER::thawer_merge ($merge);
1234	}	2026	}
1235		2027
1236	sub normalise {	2028	sub normalise {
1237	my ($path, $base) = @_;	2029	my ($path, $base) = @_;
1238		2030
1239	$path = "$path"; # make sure its a string	2031	$path = "$path"; # make sure it's a string
1240		2032
1241	$path =~ s/\.map$//;	2033	$path =~ s/\.map$//;
1242		2034
1243	# map plan:	2035	# map plan:
1244	#	2036	#
…		…
1259	$base =~ s{[^/]+/?$}{};	2051	$base =~ s{[^/]+/?$}{};
1260	$path = "$base/$path";	2052	$path = "$base/$path";
1261	}	2053	}
1262		2054
1263	for ($path) {	2055	for ($path) {
1264	redo if s{//}{/};
1265	redo if s{/\.?/}{/};	2056	redo if s{/\.?/}{/};
1266	redo if s{/[^/]+/\.\./}{/};	2057	redo if s{/[^/]+/\.\./}{/};
1267	}	2058	}
1268		2059
1269	$path	2060	$path
…		…
1283	$self->init; # pass $1 etc.	2074	$self->init; # pass $1 etc.
1284	return $self;	2075	return $self;
1285	}	2076	}
1286	}	2077	}
1287		2078
1288	Carp::carp "unable to resolve path '$path' (base '$base').";	2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
1289	()	2080	()
1290	}	2081	}
1291		2082
		2083	# may re-bless or do other evil things
1292	sub init {	2084	sub init {
1293	my ($self) = @_;	2085	my ($self) = @_;
1294		2086
1295	$self	2087	$self
1296	}	2088	}
…		…
1308		2100
1309	# the original (read-only) location	2101	# the original (read-only) location
1310	sub load_path {	2102	sub load_path {
1311	my ($self) = @_;	2103	my ($self) = @_;
1312		2104
1313	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2105	"$MAPDIR/$self->{path}.map"
1314	}	2106	}
1315		2107
1316	# the temporary/swap location	2108	# the temporary/swap location
1317	sub save_path {	2109	sub save_path {
1318	my ($self) = @_;	2110	my ($self) = @_;
1319		2111
1320	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1321	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2113	"$TMPDIR/$path.map"
1322	}	2114	}
1323		2115
1324	# the unique path, undef == no special unique path	2116	# the unique path, undef == no special unique path
1325	sub uniq_path {	2117	sub uniq_path {
1326	my ($self) = @_;	2118	my ($self) = @_;
1327		2119
1328	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1329	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2121	"$UNIQUEDIR/$path"
1330	}	2122	}
1331		2123
1332	# and all this just because we cannot iterate over	2124	sub decay_objects {
1333	# all maps in C++...
1334	sub change_all_map_light {
1335	my ($change) = @_;	2125	my ($self) = @_;
1336		2126
1337	$_->change_map_light ($change)	2127	return if $self->{deny_reset};
1338	for grep $_->outdoor, values %cf::MAP;	2128
		2129	$self->do_decay_objects;
1339	}	2130	}
1340		2131
1341	sub unlink_save {	2132	sub unlink_save {
1342	my ($self) = @_;	2133	my ($self) = @_;
1343		2134
…		…
1348		2139
1349	sub load_header_from($) {	2140	sub load_header_from($) {
1350	my ($self, $path) = @_;	2141	my ($self, $path) = @_;
1351		2142
1352	utf8::encode $path;	2143	utf8::encode $path;
1353	#aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1354	# or return;
1355
1356	$self->_load_header ($path)
1357	or return;	2145	or return;
1358		2146
		2147	$self->_load_header ($f)
		2148	or return;
		2149
		2150	local $MAP_LOADING{$self->{path}} = $self;
		2151	$f->resolve_delayed_derefs;
		2152
1359	$self->{load_path} = $path;	2153	$self->{load_path} = $path;
1360		2154
1361	1	2155	1
1362	}	2156	}
1363		2157
		2158	# used to laod the header of an original map
1364	sub load_header_orig {	2159	sub load_header_orig {
1365	my ($self) = @_;	2160	my ($self) = @_;
1366		2161
1367	$self->load_header_from ($self->load_path)	2162	$self->load_header_from ($self->load_path)
1368	}	2163	}
1369		2164
		2165	# used to laod the header of an instantiated map
1370	sub load_header_temp {	2166	sub load_header_temp {
1371	my ($self) = @_;	2167	my ($self) = @_;
1372		2168
1373	$self->load_header_from ($self->save_path)	2169	$self->load_header_from ($self->save_path)
1374	}	2170	}
1375		2171
		2172	# called after loading the header from an instantiated map
1376	sub prepare_temp {	2173	sub prepare_temp {
1377	my ($self) = @_;	2174	my ($self) = @_;
1378		2175
1379	$self->last_access ((delete $self->{last_access})	2176	$self->last_access ((delete $self->{last_access})
1380	|| $cf::RUNTIME); #d#	2177	|| $cf::RUNTIME); #d#
1381	# safety	2178	# safety
1382	$self->{instantiate_time} = $cf::RUNTIME	2179	$self->{instantiate_time} = $cf::RUNTIME
1383	if $self->{instantiate_time} > $cf::RUNTIME;	2180	if $self->{instantiate_time} > $cf::RUNTIME;
1384	}	2181	}
1385		2182
		2183	# called after loading the header from an original map
1386	sub prepare_orig {	2184	sub prepare_orig {
1387	my ($self) = @_;	2185	my ($self) = @_;
1388		2186
1389	$self->{load_original} = 1;	2187	$self->{load_original} = 1;
1390	$self->{instantiate_time} = $cf::RUNTIME;	2188	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1401	$self->load_header_orig	2199	$self->load_header_orig
1402	or return;	2200	or return;
1403	$self->prepare_orig;	2201	$self->prepare_orig;
1404	}	2202	}
1405		2203
		2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
		2206
		2207	$self->default_region (cf::region::find_by_path $self->{path})
		2208	unless $self->default_region;
		2209
1406	1	2210	1
1407	}	2211	}
1408		2212
1409	sub find;	2213	sub find;
1410	sub find {	2214	sub find {
1411	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1412		2216
		2217	cf::cede_to_tick;
		2218
1413	$path = normalise $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1414		2220
		2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1415	cf::lock_wait "map_find:$path";	2222	my $guard2 = cf::lock_acquire "map_find:$path";
1416		2223
1417	$cf::MAP{$path} || do {	2224	$cf::MAP{$path} || do {
1418	my $guard = cf::lock_acquire "map_find:$path";
1419	my $map = new_from_path cf::map $path	2225	my $map = new_from_path cf::map $path
1420	or return;	2226	or return;
1421		2227
1422	$map->{last_save} = $cf::RUNTIME;	2228	$map->{last_save} = $cf::RUNTIME;
1423		2229
1424	$map->load_header	2230	$map->load_header
1425	or return;	2231	or return;
1426		2232
1427	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1428	# doing this can freeze the server in a sync job, obviously	2234	# doing this can freeze the server in a sync job, obviously
1429	#$cf::WAIT_FOR_TICK->wait;	2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1430	$map->reset;	2238	$map->reset;
1431	undef $guard;
1432	return find $path;	2239	return find $path;
1433	}	2240	}
1434		2241
1435	$cf::MAP{$path} = $map	2242	$cf::MAP{$path} = $map
1436	}	2243	}
1437	}	2244	}
1438		2245
1439	sub pre_load { }	2246	sub pre_load { }
1440	sub post_load { }	2247	#sub post_load { } # XS
1441		2248
1442	sub load {	2249	sub load {
1443	my ($self) = @_;	2250	my ($self) = @_;
1444		2251
1445	local $self->{deny_reset} = 1; # loading can take a long time	2252	local $self->{deny_reset} = 1; # loading can take a long time
1446		2253
1447	my $path = $self->{path};	2254	my $path = $self->{path};
		2255
		2256	{
1448	my $guard = cf::lock_acquire "map_load:$path";	2257	my $guard = cf::lock_acquire "map_data:$path";
1449		2258
1450	return if $self->in_memory != cf::MAP_SWAPPED;	2259	return unless $self->valid;
		2260	return unless $self->state == cf::MAP_SWAPPED;
1451		2261
1452	$self->in_memory (cf::MAP_LOADING);
1453
1454	$self->alloc;	2262	$self->alloc;
1455		2263
1456	$self->pre_load;	2264	$self->pre_load;
		2265	cf::cede_to_tick;
1457		2266
1458	$self->_load_objects ($self->{load_path}, 1)	2267	if (exists $self->{load_path}) {
		2268	my $f = new_from_file cf::object::thawer $self->{load_path};
		2269	$f->skip_block;
		2270	$self->_load_objects ($f)
1459	or return;	2271	or return;
1460		2272
1461	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1462	if delete $self->{load_original};	2274	if delete $self->{load_original};
1463		2275
1464	if (my $uniq = $self->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1465	utf8::encode $uniq;	2277	utf8::encode $uniq;
1466	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1467	$self->clear_unique_items;	2280	$self->clear_unique_items;
1468	$self->_load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1469	}	2285	}
1470	}
1471		2286
1472	Coro::cede;	2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
1473		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1474	# now do the right thing for maps	2296	# now do the right thing for maps
1475	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1476
1477	unless ($self->{deny_activate}) {
1478	$self->decay_objects;
1479	$self->fix_auto_apply;
1480	$self->update_buttons;
1481	Coro::cede;
1482	$self->set_darkness_map;
1483	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1484	unless $self->difficulty;	2299	unless $self->difficulty;
1485	Coro::cede;	2300	cf::cede_to_tick;
1486	$self->activate;	2301
		2302	unless ($self->{deny_activate}) {
		2303	$self->decay_objects;
		2304	$self->fix_auto_apply;
		2305	$self->update_buttons;
		2306	cf::cede_to_tick;
		2307	#$self->activate; # no longer activate maps automatically
		2308	}
		2309
		2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
1487	}	2312	}
1488		2313
1489	$self->post_load;	2314	$self->post_load;
1490		2315
1491	$self->in_memory (cf::MAP_IN_MEMORY);	2316	1
1492	}	2317	}
1493		2318
		2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
1494	sub customise_for {	2322	sub customise_for {
1495	my ($self, $ob) = @_;	2323	my ($self, $ob) = @_;
1496		2324
1497	return find "~" . $ob->name . "/" . $self->{path}	2325	return find "~" . $ob->name . "/" . $self->{path}
1498	if $self->per_player;	2326	if $self->per_player;
1499		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
1500	$self	2331	$self
1501	}
1502
1503	# find and load all maps in the 3x3 area around a map
1504	sub load_diag {
1505	my ($map) = @_;
1506
1507	my @diag; # diagonal neighbours
1508
1509	for (0 .. 3) {
1510	my $neigh = $map->tile_path ($_)
1511	or next;
1512	$neigh = find $neigh, $map
1513	or next;
1514	$neigh->load;
1515
1516	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1517	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1518	}
1519
1520	for (@diag) {
1521	my $neigh = find @$_
1522	or next;
1523	$neigh->load;
1524	}
1525	}	2332	}
1526		2333
1527	sub find_sync {	2334	sub find_sync {
1528	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1529		2336
1530	cf::sync_job { find $path, $origin }	2337	# it's a bug to call this from the main context
		2338	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2339	if $Coro::current == $Coro::main;
		2340
		2341	find $path, $origin
1531	}	2342	}
1532		2343
1533	sub do_load_sync {	2344	sub do_load_sync {
1534	my ($map) = @_;	2345	my ($map) = @_;
1535		2346
1536	cf::sync_job { $map->load };	2347	# it's a bug to call this from the main context
		2348	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2349	if $Coro::current == $Coro::main;
		2350
		2351	$map->load;
1537	}	2352	}
1538		2353
1539	our %MAP_PREFETCH;	2354	our %MAP_PREFETCH;
1540	our $MAP_PREFETCHER = undef;	2355	our $MAP_PREFETCHER = undef;
1541		2356
1542	sub find_async {	2357	sub find_async {
1543	my ($path, $origin) = @_;	2358	my ($path, $origin, $load) = @_;
1544		2359
1545	$path = normalise $path, $origin && $origin->{path};	2360	$path = normalise $path, $origin;
1546		2361
1547	if (my $map = $cf::MAP{$path}) {	2362	if (my $map = $cf::MAP{$path}) {
1548	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2363	return $map if !$load || $map->linkable;
1549	}	2364	}
1550		2365
1551	undef $MAP_PREFETCH{$path};	2366	$MAP_PREFETCH{$path} |= $load;
		2367
1552	$MAP_PREFETCHER ||= cf::async {	2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
1553	while (%MAP_PREFETCH) {	2371	while (%MAP_PREFETCH) {
1554	for my $path (keys %MAP_PREFETCH) {	2372	while (my ($k, $v) = each %MAP_PREFETCH) {
1555	my $map = find $path	2373	if (my $map = find $k) {
1556	or next;
1557	$map->load;	2374	$map->load if $v;
		2375	}
1558		2376
1559	delete $MAP_PREFETCH{$path};	2377	delete $MAP_PREFETCH{$k};
1560	}	2378	}
1561	}	2379	}
1562	undef $MAP_PREFETCHER;	2380	undef $MAP_PREFETCHER;
1563	};	2381	};
1564	$MAP_PREFETCHER->prio (6);	2382	$MAP_PREFETCHER->prio (6);
1565		2383
1566	()	2384	()
1567	}	2385	}
1568		2386
		2387	# common code, used by both ->save and ->swapout
1569	sub save {	2388	sub _save {
1570	my ($self) = @_;	2389	my ($self) = @_;
1571
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;
1573		2390
1574	$self->{last_save} = $cf::RUNTIME;	2391	$self->{last_save} = $cf::RUNTIME;
1575		2392
1576	return unless $self->dirty;	2393	return unless $self->dirty;
1577		2394
…		…
1583	return if $self->{deny_save};	2400	return if $self->{deny_save};
1584		2401
1585	local $self->{last_access} = $self->last_access;#d#	2402	local $self->{last_access} = $self->last_access;#d#
1586		2403
1587	cf::async {	2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
1588	$_->contr->save for $self->players;	2406	$_->contr->save for $self->players;
1589	};	2407	};
		2408
		2409	cf::get_slot 0.02;
1590		2410
1591	if ($uniq) {	2411	if ($uniq) {
1592	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1593	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1594	} else {	2414	} else {
1595	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1596	}	2416	}
1597	}	2417	}
1598		2418
		2419	sub save {
		2420	my ($self) = @_;
		2421
		2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2423
		2424	$self->_save;
		2425	}
		2426
1599	sub swap_out {	2427	sub swap_out {
1600	my ($self) = @_;	2428	my ($self) = @_;
1601		2429
1602	# save first because save cedes
1603	$self->save;
1604
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1607	return if $self->players;	2434	return if $self->players;
1608	return if $self->in_memory != cf::MAP_IN_MEMORY;
1609	return if $self->{deny_save};
1610		2435
		2436	# first deactivate the map and "unlink" it from the core
		2437	$self->deactivate;
		2438	$_->clear_links_to ($self) for values %cf::MAP;
		2439	$self->state (cf::MAP_SWAPPED);
		2440
		2441	# then atomically save
		2442	$self->_save;
		2443
		2444	# then free the map
1611	$self->clear;	2445	$self->clear;
1612	$self->in_memory (cf::MAP_SWAPPED);
1613	}	2446	}
1614		2447
1615	sub reset_at {	2448	sub reset_at {
1616	my ($self) = @_;	2449	my ($self) = @_;
1617		2450
1618	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1619	return 1e99 if $self->isa ("ext::map_per_player");#d#
1620	return 1e99 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1621		2453
1622	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1623	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2455	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1624		2456
…		…
1635	my ($self) = @_;	2467	my ($self) = @_;
1636		2468
1637	my $lock = cf::lock_acquire "map_data:$self->{path}";	2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2470
1639	return if $self->players;	2471	return if $self->players;
1640	return if $self->isa ("ext::map_per_player");#d#
1641		2472
1642	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
1643		2474
1644	$self->in_memory (cf::MAP_SWAPPED);	2475	$self->state (cf::MAP_SWAPPED);
1645		2476
1646	# need to save uniques path	2477	# need to save uniques path
1647	unless ($self->{deny_save}) {	2478	unless ($self->{deny_save}) {
1648	my $uniq = $self->uniq_path; utf8::encode $uniq;	2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
1649		2480
…		…
1651	if $uniq;	2482	if $uniq;
1652	}	2483	}
1653		2484
1654	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1655		2486
		2487	$self->deactivate;
		2488	$_->clear_links_to ($self) for values %cf::MAP;
1656	$self->clear;	2489	$self->clear;
1657
1658	$_->clear_links_to ($self) for values %cf::MAP;
1659		2490
1660	$self->unlink_save;	2491	$self->unlink_save;
1661	$self->destroy;	2492	$self->destroy;
1662	}	2493	}
1663		2494
1664	my $nuke_counter = "aaaa";	2495	my $nuke_counter = "aaaa";
1665		2496
1666	sub nuke {	2497	sub nuke {
1667	my ($self) = @_;	2498	my ($self) = @_;
1668		2499
		2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2502
1669	delete $cf::MAP{$self->path};	2503	delete $cf::MAP{$self->path};
1670		2504
1671	$self->unlink_save;	2505	$self->unlink_save;
1672		2506
1673	bless $self, "cf::map";	2507	bless $self, "cf::map::wrap";
1674	delete $self->{deny_reset};	2508	delete $self->{deny_reset};
1675	$self->{deny_save} = 1;	2509	$self->{deny_save} = 1;
1676	$self->reset_timeout (1);	2510	$self->reset_timeout (1);
1677	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1678		2512
1679	$cf::MAP{$self->path} = $self;	2513	$cf::MAP{$self->path} = $self;
		2514	}
1680		2515
1681	$self->reset; # polite request, might not happen	2516	$self->reset; # polite request, might not happen
		2517	}
		2518
		2519	=item $maps = cf::map::tmp_maps
		2520
		2521	Returns an arrayref with all map paths of currently instantiated and saved
		2522	maps. May block.
		2523
		2524	=cut
		2525
		2526	sub tmp_maps() {
		2527	[
		2528	map {
		2529	utf8::decode $_;
		2530	/\.map$/
		2531	? normalise $_
		2532	: ()
		2533	} @{ aio_readdir $TMPDIR or [] }
		2534	]
		2535	}
		2536
		2537	=item $maps = cf::map::random_maps
		2538
		2539	Returns an arrayref with all map paths of currently instantiated and saved
		2540	random maps. May block.
		2541
		2542	=cut
		2543
		2544	sub random_maps() {
		2545	[
		2546	map {
		2547	utf8::decode $_;
		2548	/\.map$/
		2549	? normalise "?random/$_"
		2550	: ()
		2551	} @{ aio_readdir $RANDOMDIR or [] }
		2552	]
1682	}	2553	}
1683		2554
1684	=item cf::map::unique_maps	2555	=item cf::map::unique_maps
1685		2556
1686	Returns an arrayref of paths of all shared maps that have	2557	Returns an arrayref of paths of all shared maps that have
1687	instantiated unique items. May block.	2558	instantiated unique items. May block.
1688		2559
1689	=cut	2560	=cut
1690		2561
1691	sub unique_maps() {	2562	sub unique_maps() {
1692	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2563	[
1693	or return;	2564	map {
1694
1695	my @paths;
1696
1697	for (@$files) {
1698	utf8::decode $_;	2565	utf8::decode $_;
1699	next if /\.pst$/;	2566	s/\.map$//; # TODO future compatibility hack
1700	next unless /^$PATH_SEP/o;	2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1701		2568	? ()
1702	push @paths, cf::map::normalise $_;	2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
1703	}	2571	]
1704
1705	\@paths
1706	}	2572	}
1707		2573
1708	package cf;	2574	=item cf::map::static_maps
		2575
		2576	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2577	file in the shared directory excluding F</styles> and F</editor>). May
		2578	block.
		2579
		2580	=cut
		2581
		2582	sub static_maps() {
		2583	my @dirs = "";
		2584	my @maps;
		2585
		2586	while (@dirs) {
		2587	my $dir = shift @dirs;
		2588
		2589	next if $dir eq "/styles" || $dir eq "/editor";
		2590
		2591	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2592	or return;
		2593
		2594	for (@$files) {
		2595	s/\.map$// or next;
		2596	utf8::decode $_;
		2597	push @maps, "$dir/$_";
		2598	}
		2599
		2600	push @dirs, map "$dir/$_", @$dirs;
		2601	}
		2602
		2603	\@maps
		2604	}
1709		2605
1710	=back	2606	=back
1711		2607
1712	=head3 cf::object	2608	=head3 cf::object
1713		2609
…		…
1717		2613
1718	=over 4	2614	=over 4
1719		2615
1720	=item $ob->inv_recursive	2616	=item $ob->inv_recursive
1721		2617
1722	Returns the inventory of the object _and_ their inventories, recursively.	2618	Returns the inventory of the object I<and> their inventories, recursively,
		2619	but I<not> the object itself.
1723		2620
1724	=cut	2621	=cut
1725		2622
1726	sub inv_recursive_;	2623	sub inv_recursive_;
1727	sub inv_recursive_ {	2624	sub inv_recursive_ {
…		…
1730		2627
1731	sub inv_recursive {	2628	sub inv_recursive {
1732	inv_recursive_ inv $_[0]	2629	inv_recursive_ inv $_[0]
1733	}	2630	}
1734		2631
		2632	=item $ref = $ob->ref
		2633
		2634	Creates and returns a persistent reference to an object that can be stored as a string.
		2635
		2636	=item $ob = cf::object::deref ($refstring)
		2637
		2638	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2639	even if the object actually exists. May block.
		2640
		2641	=cut
		2642
		2643	sub deref {
		2644	my ($ref) = @_;
		2645
		2646	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2647	my ($uuid, $name) = ($1, $2);
		2648	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2649	or return;
		2650	$pl->ob->uuid eq $uuid
		2651	or return;
		2652
		2653	$pl->ob
		2654	} else {
		2655	warn "$ref: cannot resolve object reference\n";
		2656	undef
		2657	}
		2658	}
		2659
1735	package cf;	2660	package cf;
1736		2661
1737	=back	2662	=back
1738		2663
1739	=head3 cf::object::player	2664	=head3 cf::object::player
…		…
1745	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2670	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1746	can be C<undef>. Does the right thing when the player is currently in a	2671	can be C<undef>. Does the right thing when the player is currently in a
1747	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1748		2673
1749	=cut	2674	=cut
		2675
		2676	our $SAY_CHANNEL = {
		2677	id => "say",
		2678	title => "Map",
		2679	reply => "say ",
		2680	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2681	};
		2682
		2683	our $CHAT_CHANNEL = {
		2684	id => "chat",
		2685	title => "Chat",
		2686	reply => "chat ",
		2687	tooltip => "Player chat and shouts, global to the server.",
		2688	};
1750		2689
1751	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1752	# with dialog boxes.	2691	# with dialog boxes.
1753	#TODO: the first argument must go, split into a $npc->reply_to ( method	2692	#TODO: the first argument must go, split into a $npc->reply_to ( method
1754	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1756		2695
1757	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1758		2697
1759	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1760	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1761	} else {	2701	} else {
		2702	my $pl = $self->contr;
		2703
		2704	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2705	my $dialog = $pl->{npc_dialog};
		2706	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2707
		2708	} else {
1762	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1763	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1764	}	2712	}
		2713	}
		2714
		2715	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2716
		2717	=cut
		2718
		2719	sub cf::object::send_msg {
		2720	my $pl = shift->contr
		2721	or return;
		2722	$pl->send_msg (@_);
1765	}	2723	}
1766		2724
1767	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1768		2726
1769	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1782		2740
1783	=item $player_object->enter_link	2741	=item $player_object->enter_link
1784		2742
1785	Freezes the player and moves him/her to a special map (C<{link}>).	2743	Freezes the player and moves him/her to a special map (C<{link}>).
1786		2744
1787	The player should be reasonably safe there for short amounts of time. You	2745	The player should be reasonably safe there for short amounts of time (e.g.
1788	I<MUST> call C<leave_link> as soon as possible, though.	2746	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2747	though, as the player cannot control the character while it is on the link
		2748	map.
1789		2749
1790	Will never block.	2750	Will never block.
1791		2751
1792	=item $player_object->leave_link ($map, $x, $y)	2752	=item $player_object->leave_link ($map, $x, $y)
1793		2753
…		…
1813	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1814	my ($self) = @_;	2774	my ($self) = @_;
1815		2775
1816	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
1817		2777
		2778	++$self->{_link_recursion};
		2779
1818	return if UNIVERSAL::isa $self->map, "ext::map_link";	2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
1819		2781
1820	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1821	if $self->map;	2783	if $self->map && $self->map->{path} ne "{link}";
1822		2784
1823	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1824	}	2786	}
1825		2787
1826	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1827	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
		2790
		2791	return unless $self->contr->active;
1828		2792
1829	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1830		2794
1831	unless ($map) {	2795	unless ($map) {
1832	# restore original map position	2796	# restore original map position
…		…
1843	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1844	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1845		2809
1846	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1847	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1848	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1849		2813
1850	$map->load;	2814	$map->load;
1851	$map->load_diag;
1852		2815
1853	return unless $self->contr->active;	2816	return unless $self->contr->active;
1854	$self->activate_recursive;
1855		2817
1856	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1857	$self->enter_map ($map, $x, $y);	2819	if ($self->enter_map ($map, $x, $y)) {
1858	}	2820	# entering was successful
1859		2821	delete $self->{_link_recursion};
1860	cf::player->attach (	2822	# only activate afterwards, to support waiting in hooks
1861	on_logout => sub {	2823	$self->activate_recursive;
1862	my ($pl) = @_;
1863
1864	# abort map switching before logout
1865	if ($pl->ob->{_link_pos}) {
1866	cf::sync_job {
1867	$pl->ob->leave_link
1868	};
1869	}
1870	},	2824	}
1871	on_login => sub {
1872	my ($pl) = @_;
1873		2825
1874	# try to abort aborted map switching on player login :)	2826	}
1875	# should happen only on crashes
1876	if ($pl->ob->{_link_pos}) {
1877	$pl->ob->enter_link;
1878	(async {
1879	$pl->ob->reply (undef,
1880	"There was an internal problem at your last logout, "
1881	. "the server will try to bring you to your intended destination in a second.",
1882	cf::NDI_RED);
1883	# we need this sleep as the login has a concurrent enter_exit running
1884	# and this sleep increases chances of the player not ending up in scorn
1885	Coro::Timer::sleep 1;
1886	$pl->ob->leave_link;
1887	})->prio (2);
1888	}
1889	},
1890	);
1891		2827
1892	=item $player_object->goto ($path, $x, $y)	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1893		2829
		2830	Moves the player to the given map-path and coordinates by first freezing
		2831	her, loading and preparing them map, calling the provided $check callback
		2832	that has to return the map if sucecssful, and then unfreezes the player on
		2833	the new (success) or old (failed) map position. In either case, $done will
		2834	be called at the end of this process.
		2835
		2836	Note that $check will be called with a potentially non-loaded map, so if
		2837	it needs a loaded map it has to call C<< ->load >>.
		2838
1894	=cut	2839	=cut
		2840
		2841	our $GOTOGEN;
1895		2842
1896	sub cf::object::player::goto {	2843	sub cf::object::player::goto {
1897	my ($self, $path, $x, $y) = @_;	2844	my ($self, $path, $x, $y, $check, $done) = @_;
		2845
		2846	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2847	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2848	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2849	($path, $x, $y) = @$EMERGENCY_POSITION;
		2850	}
		2851
		2852	# do generation counting so two concurrent goto's will be executed in-order
		2853	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1898		2854
1899	$self->enter_link;	2855	$self->enter_link;
1900		2856
1901	(async {	2857	(async {
		2858	$Coro::current->{desc} = "player::goto $path $x $y";
		2859
		2860	# *tag paths override both path and x|y
		2861	if ($path =~ /^\*(.*)$/) {
		2862	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2863	my $ob = $obs[rand @obs];
		2864
		2865	# see if we actually can go there
		2866	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2867	$ob = $obs[rand @obs];
		2868	} else {
		2869	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2870	}
		2871	# else put us there anyways for now #d#
		2872
		2873	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2874	} else {
		2875	($path, $x, $y) = (undef, undef, undef);
		2876	}
		2877	}
		2878
1902	my $map = eval {	2879	my $map = eval {
1903	my $map = cf::map::find $path;	2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1904	$map = $map->customise_for ($self) if $map;	2883	$map = $map->customise_for ($self);
		2884	$map = $check->($map, $x, $y, $self) if $check && $map;
		2885	} else {
		2886	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
		2888
1905	$map	2889	$map
		2890	};
		2891
		2892	if ($@) {
		2893	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2894	LOG llevError | logBacktrace, Carp::longmess $@;
1906	} or	2895	}
1907	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1908		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1909	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1910	})->prio (1);	2903	})->prio (1);
1911	}	2904	}
1912		2905
1913	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
1914		2907
…		…
1934	}	2927	}
1935		2928
1936	sub prepare_random_map {	2929	sub prepare_random_map {
1937	my ($exit) = @_;	2930	my ($exit) = @_;
1938		2931
1939	my $guard = cf::lock_acquire "exit_prepare:$exit";
1940
1941	# all this does is basically replace the /! path by	2932	# all this does is basically replace the /! path by
1942	# a new random map path (?random/...) with a seed	2933	# a new random map path (?random/...) with a seed
1943	# that depends on the exit object	2934	# that depends on the exit object
1944		2935
1945	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
…		…
1947	if ($exit->map) {	2938	if ($exit->map) {
1948	$rmp->{region} = $exit->region->name;	2939	$rmp->{region} = $exit->region->name;
1949	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
1950	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
1951	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
1952	}	2945	}
1953		2946
1954	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
1955		2948
1956	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1957	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
1958	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2951	my $meta = "$RANDOMDIR/$md5.meta";
1959		2952
1960	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1961	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
1962	undef $fh;	2955	undef $fh;
1963	aio_rename "$meta~", $meta;	2956	aio_rename "$meta~", $meta;
1964		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
1965	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
1966	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
1967	}	2964	}
1968	}	2965	}
1969		2966
1970	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
1971	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
1972		2969
1973	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
1974		2971
1975	if ($exit->slaying eq "/!") {
1976	#TODO: this should de-fi-ni-te-ly not be a sync-job
1977	# the problem is that $exit might not survive long enough
1978	# so it needs to be done right now, right here
1979	cf::sync_job { prepare_random_map $exit };
1980	}
1981
1982	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1983	my $hp = $exit->stats->hp;
1984	my $sp = $exit->stats->sp;
1985
1986	$self->enter_link;	2972	$self->enter_link;
1987		2973
1988	(async {	2974	(async {
1989	$self->deactivate_recursive; # just to be sure	2975	$Coro::current->{desc} = "enter_exit";
		2976
1990	unless (eval {	2977	unless (eval {
		2978	$self->deactivate_recursive; # just to be sure
		2979
		2980	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2981	my $x = $exit->stats->hp;
		2982	my $y = $exit->stats->sp;
		2983
		2984	# special map handling
		2985	my $slaying = $exit->slaying;
		2986
		2987	# special map handling
		2988	if ($slaying eq "/!") {
		2989	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2990
		2991	prepare_random_map $exit
		2992	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2993
		2994	$map = $exit->slaying;
		2995
		2996	} elsif ($slaying eq '!up') {
		2997	$map = $exit->map->tile_path (cf::TILE_UP);
		2998	$x = $exit->x;
		2999	$y = $exit->y;
		3000
		3001	} elsif ($slaying eq '!down') {
		3002	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3003	$x = $exit->x;
		3004	$y = $exit->y;
		3005	}
		3006
1991	$self->goto ($slaying, $hp, $sp);	3007	$self->goto ($map, $x, $y);
1992		3008
		3009	# if exit is damned, update players death & WoR home-position
		3010	$self->contr->savebed ($map, $x, $y)
		3011	if $exit->flag (cf::FLAG_DAMNED);
		3012
1993	1;	3013	1
1994	}) {	3014	}) {
1995	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
1996	. "I'll try to bring you back to the map you were before. "	3016	. "I'll try to bring you back to the map you were before. "
1997	. "Please report this to the dungeon master!",	3017	. "Please report this to the dungeon master!",
1998	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
1999		3019
2000	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
2001	$self->leave_link;	3021	$self->leave_link;
2002	}	3022	}
2003	})->prio (1);	3023	})->prio (1);
2004	}	3024	}
2005		3025
…		…
2019		3039
2020	utf8::encode $text;	3040	utf8::encode $text;
2021	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2022	}	3042	}
2023		3043
		3044	=item $client->send_big_packet ($pkt)
		3045
		3046	Like C<send_packet>, but tries to compress large packets, and fragments
		3047	them as required.
		3048
		3049	=cut
		3050
		3051	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3052
		3053	sub cf::client::send_big_packet {
		3054	my ($self, $pkt) = @_;
		3055
		3056	# try lzf for large packets
		3057	$pkt = "lzf " . Compress::LZF::compress $pkt
		3058	if 1024 <= length $pkt and $self->{can_lzf};
		3059
		3060	# split very large packets
		3061	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3062	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3063	$pkt = "frag";
		3064	}
		3065
		3066	$self->send_packet ($pkt);
		3067	}
		3068
		3069	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3070
		3071	Send a drawinfo or msg packet to the client, formatting the msg for the
		3072	client if neccessary. C<$type> should be a string identifying the type of
		3073	the message, with C<log> being the default. If C<$color> is negative, suppress
		3074	the message unless the client supports the msg packet.
		3075
		3076	=cut
		3077
		3078	# non-persistent channels (usually the info channel)
		3079	our %CHANNEL = (
		3080	"c/motd" => {
		3081	id => "infobox",
		3082	title => "MOTD",
		3083	reply => undef,
		3084	tooltip => "The message of the day",
		3085	},
		3086	"c/identify" => {
		3087	id => "infobox",
		3088	title => "Identify",
		3089	reply => undef,
		3090	tooltip => "Items recently identified",
		3091	},
		3092	"c/examine" => {
		3093	id => "infobox",
		3094	title => "Examine",
		3095	reply => undef,
		3096	tooltip => "Signs and other items you examined",
		3097	},
		3098	"c/shopinfo" => {
		3099	id => "infobox",
		3100	title => "Shop Info",
		3101	reply => undef,
		3102	tooltip => "What your bargaining skill tells you about the shop",
		3103	},
		3104	"c/book" => {
		3105	id => "infobox",
		3106	title => "Book",
		3107	reply => undef,
		3108	tooltip => "The contents of a note or book",
		3109	},
		3110	"c/lookat" => {
		3111	id => "infobox",
		3112	title => "Look",
		3113	reply => undef,
		3114	tooltip => "What you saw there",
		3115	},
		3116	"c/who" => {
		3117	id => "infobox",
		3118	title => "Players",
		3119	reply => undef,
		3120	tooltip => "Shows players who are currently online",
		3121	},
		3122	"c/body" => {
		3123	id => "infobox",
		3124	title => "Body Parts",
		3125	reply => undef,
		3126	tooltip => "Shows which body parts you posess and are available",
		3127	},
		3128	"c/statistics" => {
		3129	id => "infobox",
		3130	title => "Statistics",
		3131	reply => undef,
		3132	tooltip => "Shows your primary statistics",
		3133	},
		3134	"c/skills" => {
		3135	id => "infobox",
		3136	title => "Skills",
		3137	reply => undef,
		3138	tooltip => "Shows your experience per skill and item power",
		3139	},
		3140	"c/shopitems" => {
		3141	id => "infobox",
		3142	title => "Shop Items",
		3143	reply => undef,
		3144	tooltip => "Shows the items currently for sale in this shop",
		3145	},
		3146	"c/resistances" => {
		3147	id => "infobox",
		3148	title => "Resistances",
		3149	reply => undef,
		3150	tooltip => "Shows your resistances",
		3151	},
		3152	"c/pets" => {
		3153	id => "infobox",
		3154	title => "Pets",
		3155	reply => undef,
		3156	tooltip => "Shows information abotu your pets/a specific pet",
		3157	},
		3158	"c/perceiveself" => {
		3159	id => "infobox",
		3160	title => "Perceive Self",
		3161	reply => undef,
		3162	tooltip => "You gained detailed knowledge about yourself",
		3163	},
		3164	"c/uptime" => {
		3165	id => "infobox",
		3166	title => "Uptime",
		3167	reply => undef,
		3168	tooltip => "How long the server has been running since last restart",
		3169	},
		3170	"c/mapinfo" => {
		3171	id => "infobox",
		3172	title => "Map Info",
		3173	reply => undef,
		3174	tooltip => "Information related to the maps",
		3175	},
		3176	"c/party" => {
		3177	id => "party",
		3178	title => "Party",
		3179	reply => "gsay ",
		3180	tooltip => "Messages and chat related to your party",
		3181	},
		3182	"c/death" => {
		3183	id => "death",
		3184	title => "Death",
		3185	reply => undef,
		3186	tooltip => "Reason for and more info about your most recent death",
		3187	},
		3188	"c/say" => $SAY_CHANNEL,
		3189	"c/chat" => $CHAT_CHANNEL,
		3190	);
		3191
		3192	sub cf::client::send_msg {
		3193	my ($self, $channel, $msg, $color, @extra) = @_;
		3194
		3195	$msg = $self->pl->expand_cfpod ($msg)
		3196	unless $color & cf::NDI_VERBATIM;
		3197
		3198	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3199
		3200	# check predefined channels, for the benefit of C
		3201	if ($CHANNEL{$channel}) {
		3202	$channel = $CHANNEL{$channel};
		3203
		3204	$self->ext_msg (channel_info => $channel);
		3205	$channel = $channel->{id};
		3206
		3207	} elsif (ref $channel) {
		3208	# send meta info to client, if not yet sent
		3209	unless (exists $self->{channel}{$channel->{id}}) {
		3210	$self->{channel}{$channel->{id}} = $channel;
		3211	$self->ext_msg (channel_info => $channel);
		3212	}
		3213
		3214	$channel = $channel->{id};
		3215	}
		3216
		3217	return unless @extra || length $msg;
		3218
		3219	# default colour, mask it out
		3220	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3221	if $color & cf::NDI_DEF;
		3222
		3223	my $pkt = "msg "
		3224	. $self->{json_coder}->encode (
		3225	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3226	);
		3227
		3228	$self->send_big_packet ($pkt);
		3229	}
		3230
2024	=item $client->ext_event ($type, %msg)	3231	=item $client->ext_msg ($type, @msg)
2025		3232
2026	Sends an exti event to the client.	3233	Sends an ext event to the client.
2027		3234
2028	=cut	3235	=cut
2029		3236
2030	sub cf::client::ext_event($$%) {	3237	sub cf::client::ext_msg($$@) {
2031	my ($self, $type, %msg) = @_;	3238	my ($self, $type, @msg) = @_;
2032		3239
2033	$msg{msgtype} = "event_$type";	3240	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2034	$self->send_packet ("ext " . cf::to_json \%msg);	3241	}
		3242
		3243	=item $client->ext_reply ($msgid, @msg)
		3244
		3245	Sends an ext reply to the client.
		3246
		3247	=cut
		3248
		3249	sub cf::client::ext_reply($$@) {
		3250	my ($self, $id, @msg) = @_;
		3251
		3252	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2035	}	3253	}
2036		3254
2037	=item $success = $client->query ($flags, "text", \&cb)	3255	=item $success = $client->query ($flags, "text", \&cb)
2038		3256
2039	Queues a query to the client, calling the given callback with	3257	Queues a query to the client, calling the given callback with
2040	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3258	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2041	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3259	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2042		3260
2043	Queries can fail, so check the return code. Or don't, as queries will become	3261	Queries can fail, so check the return code. Or don't, as queries will
2044	reliable at some point in the future.	3262	become reliable at some point in the future.
2045		3263
2046	=cut	3264	=cut
2047		3265
2048	sub cf::client::query {	3266	sub cf::client::query {
2049	my ($self, $flags, $text, $cb) = @_;	3267	my ($self, $flags, $text, $cb) = @_;
…		…
2057	utf8::encode $text;	3275	utf8::encode $text;
2058	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3276	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2059		3277
2060	$self->send_packet ($self->{query_queue}[0][0])	3278	$self->send_packet ($self->{query_queue}[0][0])
2061	if @{ $self->{query_queue} } == 1;	3279	if @{ $self->{query_queue} } == 1;
		3280
		3281	1
2062	}	3282	}
2063		3283
2064	cf::client->attach (	3284	cf::client->attach (
		3285	on_connect => sub {
		3286	my ($ns) = @_;
		3287
		3288	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3289	},
2065	on_reply => sub {	3290	on_reply => sub {
2066	my ($ns, $msg) = @_;	3291	my ($ns, $msg) = @_;
2067		3292
2068	# this weird shuffling is so that direct followup queries	3293	# this weird shuffling is so that direct followup queries
2069	# get handled first	3294	# get handled first
…		…
2081	} else {	3306	} else {
2082	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3307	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2083	}	3308	}
2084	}	3309	}
2085	},	3310	},
		3311	on_exticmd => sub {
		3312	my ($ns, $buf) = @_;
		3313
		3314	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3315
		3316	if (ref $msg) {
		3317	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3318
		3319	my @reply;
		3320
		3321	if (my $cb = $EXTICMD{$type}) {
		3322	@reply = $cb->($ns, @payload);
		3323	}
		3324
		3325	$ns->ext_reply ($reply, @reply)
		3326	if $reply;
		3327
		3328	} else {
		3329	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3330	}
		3331
		3332	cf::override;
		3333	},
2086	);	3334	);
2087		3335
2088	=item $client->async (\&cb)	3336	=item $client->async (\&cb)
2089		3337
2090	Create a new coroutine, running the specified callback. The coroutine will	3338	Create a new coroutine, running the specified callback. The coroutine will
…		…
2106		3354
2107	$coro	3355	$coro
2108	}	3356	}
2109		3357
2110	cf::client->attach (	3358	cf::client->attach (
2111	on_destroy => sub {	3359	on_client_destroy => sub {
2112	my ($ns) = @_;	3360	my ($ns) = @_;
2113		3361
2114	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3362	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2115	},	3363	},
2116	);	3364	);
…		…
2131	our $safe = new Safe "safe";	3379	our $safe = new Safe "safe";
2132	our $safe_hole = new Safe::Hole;	3380	our $safe_hole = new Safe::Hole;
2133		3381
2134	$SIG{FPE} = 'IGNORE';	3382	$SIG{FPE} = 'IGNORE';
2135		3383
2136	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3384	$safe->permit_only (Opcode::opset qw(
		3385	:base_core :base_mem :base_orig :base_math :base_loop
		3386	grepstart grepwhile mapstart mapwhile
		3387	sort time
		3388	));
2137		3389
2138	# here we export the classes and methods available to script code	3390	# here we export the classes and methods available to script code
2139		3391
2140	=pod	3392	=pod
2141		3393
2142	The following functions and methods are available within a safe environment:	3394	The following functions and methods are available within a safe environment:
2143		3395
2144	cf::object contr pay_amount pay_player map	3396	cf::object
		3397	contr pay_amount pay_player map x y force_find force_add destroy
		3398	insert remove name archname title slaying race decrease split
		3399	value
		3400
2145	cf::object::player player	3401	cf::object::player
2146	cf::player peaceful	3402	player
2147	cf::map trigger	3403
		3404	cf::player
		3405	peaceful
		3406
		3407	cf::map
		3408	trigger
2148		3409
2149	=cut	3410	=cut
2150		3411
2151	for (	3412	for (
2152	["cf::object" => qw(contr pay_amount pay_player map)],	3413	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3414	insert remove inv nrof name archname title slaying race
		3415	decrease split destroy change_exp value msg lore send_msg)],
2153	["cf::object::player" => qw(player)],	3416	["cf::object::player" => qw(player)],
2154	["cf::player" => qw(peaceful)],	3417	["cf::player" => qw(peaceful send_msg)],
2155	["cf::map" => qw(trigger)],	3418	["cf::map" => qw(trigger)],
2156	) {	3419	) {
2157	no strict 'refs';
2158	my ($pkg, @funs) = @$_;	3420	my ($pkg, @funs) = @$_;
2159	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3421	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2160	for @funs;	3422	for @funs;
2161	}	3423	}
2162		3424
…		…
2177		3439
2178	my $qcode = $code;	3440	my $qcode = $code;
2179	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3441	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2180	$qcode =~ s/\n/\\n/g;	3442	$qcode =~ s/\n/\\n/g;
2181		3443
		3444	%vars = (_dummy => 0) unless %vars;
		3445
		3446	my @res;
2182	local $_;	3447	local $_;
2183	local @safe::cf::_safe_eval_args = values %vars;
2184		3448
2185	my $eval =	3449	my $eval =
2186	"do {\n"	3450	"do {\n"
2187	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3451	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2188	. "#line 0 \"{$qcode}\"\n"	3452	. "#line 0 \"{$qcode}\"\n"
2189	. $code	3453	. $code
2190	. "\n}"	3454	. "\n}"
2191	;	3455	;
2192		3456
		3457	if ($CFG{safe_eval}) {
2193	sub_generation_inc;	3458	sub_generation_inc;
		3459	local @safe::cf::_safe_eval_args = values %vars;
2194	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3460	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2195	sub_generation_inc;	3461	sub_generation_inc;
		3462	} else {
		3463	local @cf::_safe_eval_args = values %vars;
		3464	@res = wantarray ? eval eval : scalar eval $eval;
		3465	}
2196		3466
2197	if ($@) {	3467	if ($@) {
2198	warn "$@";	3468	warn "$@",
2199	warn "while executing safe code '$code'\n";	3469	"while executing safe code '$code'\n",
2200	warn "with arguments " . (join " ", %vars) . "\n";	3470	"with arguments " . (join " ", %vars) . "\n";
2201	}	3471	}
2202		3472
2203	wantarray ? @res : $res[0]	3473	wantarray ? @res : $res[0]
2204	}	3474	}
2205		3475
…		…
2219	=cut	3489	=cut
2220		3490
2221	sub register_script_function {	3491	sub register_script_function {
2222	my ($fun, $cb) = @_;	3492	my ($fun, $cb) = @_;
2223		3493
2224	no strict 'refs';	3494	$fun = "safe::$fun" if $CFG{safe_eval};
2225	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3495	*$fun = $safe_hole->wrap ($cb);
2226	}	3496	}
2227		3497
2228	=back	3498	=back
2229		3499
2230	=cut	3500	=cut
2231
2232	#############################################################################
2233
2234	=head2 EXTENSION DATABASE SUPPORT
2235
2236	Crossfire maintains a very simple database for extension use. It can
2237	currently store anything that can be serialised using Storable, which
2238	excludes objects.
2239
2240	The parameter C<$family> should best start with the name of the extension
2241	using it, it should be unique.
2242
2243	=over 4
2244
2245	=item $value = cf::db_get $family => $key
2246
2247	Returns a single value from the database.
2248
2249	=item cf::db_put $family => $key => $value
2250
2251	Stores the given C<$value> in the family.
2252
2253	=cut
2254
2255	our $DB;
2256
2257	sub db_init {
2258	unless ($DB) {
2259	$DB = BDB::db_create $DB_ENV;
2260
2261	cf::sync_job {
2262	eval {
2263	$DB->set_flags (BDB::CHKSUM);
2264
2265	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2266	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2267	cf::cleanup "db_open(db): $!" if $!;
2268	};
2269	cf::cleanup "db_open(db): $@" if $@;
2270	};
2271
2272	my $path = cf::localdir . "/database.pst";
2273	if (stat $path) {
2274	cf::sync_job {
2275	my $pst = Storable::retrieve $path;
2276
2277	cf::db_put (board => data => $pst->{board});
2278	cf::db_put (guildrules => data => $pst->{guildrules});
2279	cf::db_put (rent => balance => $pst->{rent}{balance});
2280	BDB::db_env_txn_checkpoint $DB_ENV;
2281
2282	unlink $path;
2283	};
2284	}
2285	}
2286	}
2287
2288	sub db_get($$) {
2289	my $key = "$_[0]/$_[1]";
2290
2291	cf::sync_job {
2292	BDB::db_get $DB, undef, $key, my $data;
2293
2294	$! ? ()
2295	: Compress::LZF::sthaw $data
2296	}
2297	}
2298
2299	sub db_put($$$) {
2300	BDB::dbreq_pri 4;
2301	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2302	}
2303		3501
2304	#############################################################################	3502	#############################################################################
2305	# the server's init and main functions	3503	# the server's init and main functions
2306		3504
		3505	our %FACEHASH; # hash => idx, #d# HACK for http server
		3506
		3507	# internal api, not fianlised
		3508	sub add_face {
		3509	my ($name, $type, $data) = @_;
		3510
		3511	my $idx = cf::face::find $name;
		3512
		3513	if ($idx) {
		3514	delete $FACEHASH{cf::face::get_chksum $idx};
		3515	} else {
		3516	$idx = cf::face::alloc $name;
		3517	}
		3518
		3519	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3520
		3521	cf::face::set_type $idx, $type;
		3522	cf::face::set_data $idx, 0, $data, $hash;
		3523	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3524	$FACEHASH{$hash} = $idx;#d#
		3525
		3526	$idx
		3527	}
		3528
2307	sub load_facedata {	3529	sub load_facedata($) {
2308	my $path = sprintf "%s/facedata", cf::datadir;	3530	my ($path) = @_;
2309		3531
		3532	# HACK to clear player env face cache, we need some signal framework
		3533	# for this (global event?)
		3534	%ext::player_env::MUSIC_FACE_CACHE = ();
		3535
		3536	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3537
2310	warn "loading facedata from $path\n";	3538	trace "loading facedata from $path\n";
2311		3539
2312	my $facedata;	3540	my $facedata = decode_storable load_file $path;
2313	0 < aio_load $path, $facedata
2314	or die "$path: $!";
2315
2316	Coro::cede;
2317	$facedata = Storable::thaw $facedata;
2318	Coro::cede;
2319		3541
2320	$facedata->{version} == 2	3542	$facedata->{version} == 2
2321	or cf::cleanup "$path: version mismatch, cannot proceed.";	3543	or cf::cleanup "$path: version mismatch, cannot proceed.";
2322		3544
		3545	cf::cede_to_tick;
		3546
2323	{	3547	{
2324	my $faces = $facedata->{faceinfo};	3548	my $faces = $facedata->{faceinfo};
2325		3549
2326	while (my ($face, $info) = each %$faces) {	3550	for my $face (sort keys %$faces) {
		3551	my $info = $faces->{$face};
2327	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3552	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3553
2328	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3554	cf::face::set_visibility $idx, $info->{visibility};
		3555	cf::face::set_magicmap $idx, $info->{magicmap};
2329	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3556	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2330	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3557	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2331	Coro::cede;	3558	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3559	$FACEHASH{$info->{hash64}} = $idx;#d#
		3560
		3561	cf::cede_to_tick;
2332	}	3562	}
2333		3563
2334	while (my ($face, $info) = each %$faces) {	3564	while (my ($face, $info) = each %$faces) {
2335	next unless $info->{smooth};	3565	next unless $info->{smooth};
		3566
2336	my $idx = cf::face::find $face	3567	my $idx = cf::face::find $face
2337	or next;	3568	or next;
		3569
2338	if (my $smooth = cf::face::find $info->{smooth}) {	3570	if (my $smooth = cf::face::find $info->{smooth}) {
		3571	cf::face::set_smooth $idx, $smooth;
2339	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3572	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2340	} else {	3573	} else {
2341	warn "smooth face '$info->{smooth}' not found for face '$face'";	3574	error "smooth face '$info->{smooth}' not found for face '$face'";
2342	}	3575	}
2343	Coro::cede;	3576
		3577	cf::cede_to_tick;
2344	}	3578	}
2345	}	3579	}
2346		3580
2347	{	3581	{
2348	my $anims = $facedata->{animinfo};	3582	my $anims = $facedata->{animinfo};
2349		3583
2350	while (my ($anim, $info) = each %$anims) {	3584	while (my ($anim, $info) = each %$anims) {
2351	cf::anim::set $anim, $info->{frames}, $info->{facings};	3585	cf::anim::set $anim, $info->{frames}, $info->{facings};
2352	Coro::cede;	3586	cf::cede_to_tick;
2353	}	3587	}
2354		3588
2355	cf::anim::invalidate_all; # d'oh	3589	cf::anim::invalidate_all; # d'oh
2356	}	3590	}
2357		3591
		3592	{
		3593	my $res = $facedata->{resource};
		3594
		3595	while (my ($name, $info) = each %$res) {
		3596	if (defined (my $type = $info->{type})) {
		3597	# TODO: different hash - must free and use new index, or cache ixface data queue
		3598	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3599
		3600	cf::face::set_type $idx, $type;
		3601	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3602	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3603	$FACEHASH{$info->{hash}} = $idx;#d#
		3604	} else {
		3605	# $RESOURCE{$name} = $info; # unused
		3606	}
		3607
		3608	cf::cede_to_tick;
		3609	}
		3610	}
		3611
		3612	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3613
2358	1	3614	1
2359	}	3615	}
2360		3616
		3617	register_exticmd fx_want => sub {
		3618	my ($ns, $want) = @_;
		3619
		3620	while (my ($k, $v) = each %$want) {
		3621	$ns->fx_want ($k, $v);
		3622	}
		3623	};
		3624
		3625	sub load_resource_file($) {
		3626	my $guard = lock_acquire "load_resource_file";
		3627
		3628	my $status = load_resource_file_ $_[0];
		3629	get_slot 0.1, 100;
		3630	cf::arch::commit_load;
		3631
		3632	$status
		3633	}
		3634
		3635	sub reload_exp_table {
		3636	_reload_exp_table;
		3637
		3638	add_face "res/exp_table" => FT_RSRC,
		3639	JSON::XS->new->utf8->canonical->encode (
		3640	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3641	);
		3642	}
		3643
		3644	sub reload_materials {
		3645	_reload_materials;
		3646	}
		3647
		3648	sub reload_regions {
		3649	# HACK to clear player env face cache, we need some signal framework
		3650	# for this (global event?)
		3651	%ext::player_env::MUSIC_FACE_CACHE = ();
		3652
		3653	load_resource_file "$MAPDIR/regions"
		3654	or die "unable to load regions file\n";
		3655
		3656	for (cf::region::list) {
		3657	$_->{match} = qr/$_->{match}/
		3658	if exists $_->{match};
		3659	}
		3660	}
		3661
		3662	sub reload_facedata {
		3663	load_facedata "$DATADIR/facedata"
		3664	or die "unable to load facedata\n";
		3665	}
		3666
		3667	sub reload_archetypes {
		3668	load_resource_file "$DATADIR/archetypes"
		3669	or die "unable to load archetypes\n";
		3670
		3671	add_face "res/skill_info" => FT_RSRC,
		3672	JSON::XS->new->utf8->canonical->encode (
		3673	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3674	);
		3675	add_face "res/spell_paths" => FT_RSRC,
		3676	JSON::XS->new->utf8->canonical->encode (
		3677	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3678	);
		3679	}
		3680
		3681	sub reload_treasures {
		3682	load_resource_file "$DATADIR/treasures"
		3683	or die "unable to load treasurelists\n";
		3684	}
		3685
		3686	sub reload_sound {
		3687	trace "loading sound config from $DATADIR/sound\n";
		3688
		3689	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3690
		3691	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3692	my $sound = $soundconf->{compat}[$_]
		3693	or next;
		3694
		3695	my $face = cf::face::find "sound/$sound->[1]";
		3696	cf::sound::set $sound->[0] => $face;
		3697	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3698	}
		3699
		3700	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3701	my $face = cf::face::find "sound/$v";
		3702	cf::sound::set $k => $face;
		3703	}
		3704	}
		3705
		3706	#d# move docstuff to help or so
		3707	our %DOCSTRING;
		3708
		3709	sub reload_pod {
		3710	trace "loading pods $PODDIR\n";
		3711
		3712	%DOCSTRING = ();
		3713	my @command_list;
		3714
		3715	for (
		3716	[0, "command_help"],
		3717	[1, "emote_help"],
		3718	[2, "dmcommand_help"],
		3719	) {
		3720	my ($type, $path) = @$_;
		3721
		3722	my $paragraphs = &cf::pod::load_pod ("$PODDIR/$path.pod")
		3723	or die "unable to load $path";
		3724
		3725	my $level = 1e9;
		3726	my $rpar;
		3727
		3728	for my $par (@$paragraphs) {
		3729	if ($par->{type} eq "head2") {
		3730	# this code taken almost verbatim from DC/Protocol.pm
		3731
		3732	if ($par->{markup} =~ /^(\S+) (?:\s+ \( ([^\)]*) \) )?/x) {
		3733	my $cmd = $1;
		3734	my @args = split /\|/, $2;
		3735	@args = (".*") unless @args;
		3736
		3737	$_ = $_ eq ".*" ? "" : " $_"
		3738	for @args;
		3739
		3740	my @variants = map "$cmd$_", sort { (length $a) <=> (length $b) } @args;
		3741
		3742	$rpar = \($DOCSTRING{"command/$cmd"} = &cf::pod::as_cfpod ([$par]));
		3743
		3744	push @command_list, [$type, \@variants];
		3745	$level = $par->{level};
		3746	} else {
		3747	error "$par->{markup}: unparsable command heading";
		3748	}
		3749	} elsif ($par->{level} > $level) {
		3750	$$rpar .= &cf::pod::as_cfpod ([$par]);
		3751	}
		3752
		3753	cf::cede_to_tick;
		3754	}
		3755	}
		3756
		3757	@command_list = sort {
		3758	$a->[0] <=> $b->[0]
		3759	or $a->[1] cmp $b->[1]
		3760	} @command_list;
		3761
		3762	cf::cede_to_tick;
		3763
		3764	add_face "res/command_list" => FT_RSRC,
		3765	JSON::XS->new->utf8->encode (\@command_list);
		3766	}
		3767
2361	sub reload_resources {	3768	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3769	trace "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	3770
		3771	reload_materials;
2364	load_facedata	3772	reload_facedata;
2365	or die "unable to load facedata\n";#d#	3773	reload_exp_table;
2366	}	3774	reload_sound;
2367		3775	reload_archetypes;
2368	sub init {
2369	reload_resources;	3776	reload_regions;
2370	}	3777	reload_treasures;
		3778	reload_pod;
2371		3779
2372	sub cfg_load {	3780	trace "finished reloading resource files\n";
2373	open my $fh, "<:utf8", cf::confdir . "/config"	3781	}
2374	or return;
2375		3782
2376	local $/;	3783	sub reload_config {
2377	*CFG = YAML::Syck::Load <$fh>;	3784	trace "reloading config file...\n";
2378		3785
		3786	my $config = load_file "$CONFDIR/config";
		3787	utf8::decode $config;
		3788	*CFG = decode_yaml $config;
		3789
2379	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3790	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2380		3791
2381	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3792	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2382	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3793	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2383		3794
2384	if (exists $CFG{mlockall}) {	3795	if (exists $CFG{mlockall}) {
…		…
2388	};	3799	};
2389	warn $@ if $@;	3800	warn $@ if $@;
2390	}	3801	}
2391	}	3802	}
2392		3803
		3804	sub pidfile() {
		3805	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3806	or die "$PIDFILE: $!";
		3807	flock $fh, &Fcntl::LOCK_EX
		3808	or die "$PIDFILE: flock: $!";
		3809	$fh
		3810	}
		3811
		3812	# make sure only one server instance is running at any one time
		3813	sub atomic {
		3814	my $fh = pidfile;
		3815
		3816	my $pid = <$fh>;
		3817	kill 9, $pid if $pid > 0;
		3818
		3819	seek $fh, 0, 0;
		3820	print $fh $$;
		3821	}
		3822
		3823	sub main_loop {
		3824	trace "EV::loop starting\n";
		3825	if (1) {
		3826	EV::loop;
		3827	}
		3828	trace "EV::loop returned\n";
		3829	goto &main_loop unless $REALLY_UNLOOP;
		3830	}
		3831
2393	sub main {	3832	sub main {
		3833	cf::init_globals; # initialise logging
		3834
		3835	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3836	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3837	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3838	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3839
		3840	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3841
2394	# we must not ever block the main coroutine	3842	# we must not ever block the main coroutine
2395	local $Coro::idle = sub {	3843	$Coro::idle = sub {
2396	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3844	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2397	(async {	3845	(async {
2398	Event::one_event;	3846	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3847	EV::loop EV::LOOP_ONESHOT;
2399	})->prio (Coro::PRIO_MAX);	3848	})->prio (Coro::PRIO_MAX);
2400	};	3849	};
2401		3850
2402	cfg_load;	3851	evthread_start IO::AIO::poll_fileno;
		3852
		3853	cf::sync_job {
		3854	cf::incloader::init ();
		3855
2403	db_init;	3856	db_init;
		3857
		3858	cf::init_anim;
		3859	cf::init_attackmess;
		3860	cf::init_dynamic;
		3861
		3862	cf::load_settings;
		3863
		3864	reload_resources;
		3865	reload_config;
		3866
		3867	cf::init_uuid;
		3868	cf::init_signals;
		3869	cf::init_skills;
		3870
		3871	cf::init_beforeplay;
		3872
		3873	atomic;
		3874
2404	load_extensions;	3875	load_extensions;
2405		3876
2406	$TICK_WATCHER->start;	3877	utime time, time, $RUNTIMEFILE;
2407	Event::loop;	3878
		3879	# no (long-running) fork's whatsoever before this point(!)
		3880	use POSIX ();
		3881	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3882
		3883	cf::_post_init 0;
		3884	};
		3885
		3886	cf::object::thawer::errors_are_fatal 0;
		3887	info "parse errors in files are no longer fatal from this point on.\n";
		3888
		3889	AE::postpone {
		3890	undef &main; # free gobs of memory :)
		3891	};
		3892
		3893	goto &main_loop;
2408	}	3894	}
2409		3895
2410	#############################################################################	3896	#############################################################################
2411	# initialisation and cleanup	3897	# initialisation and cleanup
2412		3898
2413	# install some emergency cleanup handlers	3899	# install some emergency cleanup handlers
2414	BEGIN {	3900	BEGIN {
		3901	our %SIGWATCHER = ();
2415	for my $signal (qw(INT HUP TERM)) {	3902	for my $signal (qw(INT HUP TERM)) {
2416	Event->signal (	3903	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2417	reentrant => 0,
2418	data => WF_AUTOCANCEL,
2419	signal => $signal,
2420	prio => 0,
2421	cb => sub {
2422	cf::cleanup "SIG$signal";	3904	cf::cleanup "SIG$signal";
2423	},
2424	);	3905	};
		3906	}
		3907	}
		3908
		3909	sub write_runtime_sync {
		3910	my $t0 = AE::time;
		3911
		3912	# first touch the runtime file to show we are still running:
		3913	# the fsync below can take a very very long time.
		3914
		3915	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3916
		3917	my $guard = cf::lock_acquire "write_runtime";
		3918
		3919	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3920	or return;
		3921
		3922	my $value = $cf::RUNTIME + 90 + 10;
		3923	# 10 is the runtime save interval, for a monotonic clock
		3924	# 60 allows for the watchdog to kill the server.
		3925
		3926	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3927	and return;
		3928
		3929	# always fsync - this file is important
		3930	aio_fsync $fh
		3931	and return;
		3932
		3933	# touch it again to show we are up-to-date
		3934	aio_utime $fh, undef, undef;
		3935
		3936	close $fh
		3937	or return;
		3938
		3939	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3940	and return;
		3941
		3942	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3943
2425	}	3944	1
		3945	}
		3946
		3947	our $uuid_lock;
		3948	our $uuid_skip;
		3949
		3950	sub write_uuid_sync($) {
		3951	$uuid_skip ||= $_[0];
		3952
		3953	return if $uuid_lock;
		3954	local $uuid_lock = 1;
		3955
		3956	my $uuid = "$LOCALDIR/uuid";
		3957
		3958	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3959	or return;
		3960
		3961	my $value = uuid_seq uuid_cur;
		3962
		3963	unless ($value) {
		3964	info "cowardly refusing to write zero uuid value!\n";
		3965	return;
		3966	}
		3967
		3968	my $value = uuid_str $value + $uuid_skip;
		3969	$uuid_skip = 0;
		3970
		3971	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3972	and return;
		3973
		3974	# always fsync - this file is important
		3975	aio_fsync $fh
		3976	and return;
		3977
		3978	close $fh
		3979	or return;
		3980
		3981	aio_rename "$uuid~", $uuid
		3982	and return;
		3983
		3984	trace "uuid file written ($value).\n";
		3985
		3986	1
		3987
		3988	}
		3989
		3990	sub write_uuid($$) {
		3991	my ($skip, $sync) = @_;
		3992
		3993	$sync ? write_uuid_sync $skip
		3994	: async { write_uuid_sync $skip };
2426	}	3995	}
2427		3996
2428	sub emergency_save() {	3997	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	3998	my $freeze_guard = cf::freeze_mainloop;
2430		3999
2431	warn "enter emergency perl save\n";	4000	info "emergency_perl_save: enter\n";
		4001
		4002	# this is a trade-off: we want to be very quick here, so
		4003	# save all maps without fsync, and later call a global sync
		4004	# (which in turn might be very very slow)
		4005	local $USE_FSYNC = 0;
2432		4006
2433	cf::sync_job {	4007	cf::sync_job {
		4008	cf::write_runtime_sync; # external watchdog should not bark
		4009
2434	# use a peculiar iteration method to avoid tripping on perl	4010	# use a peculiar iteration method to avoid tripping on perl
2435	# refcount bugs in for. also avoids problems with players	4011	# refcount bugs in for. also avoids problems with players
2436	# and maps saved/destroyed asynchronously.	4012	# and maps saved/destroyed asynchronously.
2437	warn "begin emergency player save\n";	4013	info "emergency_perl_save: begin player save\n";
2438	for my $login (keys %cf::PLAYER) {	4014	for my $login (keys %cf::PLAYER) {
2439	my $pl = $cf::PLAYER{$login} or next;	4015	my $pl = $cf::PLAYER{$login} or next;
2440	$pl->valid or next;	4016	$pl->valid or next;
		4017	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2441	$pl->save;	4018	$pl->save;
2442	}	4019	}
2443	warn "end emergency player save\n";	4020	info "emergency_perl_save: end player save\n";
2444		4021
2445	warn "begin emergency map save\n";	4022	cf::write_runtime_sync; # external watchdog should not bark
		4023
		4024	info "emergency_perl_save: begin map save\n";
2446	for my $path (keys %cf::MAP) {	4025	for my $path (keys %cf::MAP) {
2447	my $map = $cf::MAP{$path} or next;	4026	my $map = $cf::MAP{$path} or next;
2448	$map->valid or next;	4027	$map->valid or next;
2449	$map->save;	4028	$map->save;
2450	}	4029	}
2451	warn "end emergency map save\n";	4030	info "emergency_perl_save: end map save\n";
2452		4031
2453	warn "begin emergency database checkpoint\n";	4032	cf::write_runtime_sync; # external watchdog should not bark
		4033
		4034	info "emergency_perl_save: begin database checkpoint\n";
2454	BDB::db_env_txn_checkpoint $DB_ENV;	4035	BDB::db_env_txn_checkpoint $DB_ENV;
2455	warn "end emergency database checkpoint\n";	4036	info "emergency_perl_save: end database checkpoint\n";
		4037
		4038	info "emergency_perl_save: begin write uuid\n";
		4039	write_uuid_sync 1;
		4040	info "emergency_perl_save: end write uuid\n";
		4041
		4042	cf::write_runtime_sync; # external watchdog should not bark
		4043
		4044	trace "emergency_perl_save: syncing database to disk";
		4045	BDB::db_env_txn_checkpoint $DB_ENV;
		4046
		4047	info "emergency_perl_save: starting sync\n";
		4048	IO::AIO::aio_sync sub {
		4049	info "emergency_perl_save: finished sync\n";
		4050	};
		4051
		4052	cf::write_runtime_sync; # external watchdog should not bark
		4053
		4054	trace "emergency_perl_save: flushing outstanding aio requests";
		4055	while (IO::AIO::nreqs || BDB::nreqs) {
		4056	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4057	}
		4058
		4059	cf::write_runtime_sync; # external watchdog should not bark
2456	};	4060	};
2457		4061
2458	warn "leave emergency perl save\n";	4062	info "emergency_perl_save: leave\n";
2459	}	4063	}
2460		4064
2461	sub post_cleanup {	4065	sub post_cleanup {
2462	my ($make_core) = @_;	4066	my ($make_core) = @_;
2463		4067
		4068	IO::AIO::flush;
		4069
2464	warn Carp::longmess "post_cleanup backtrace"	4070	error Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	4071	if $make_core;
2466	}
2467		4072
		4073	my $fh = pidfile;
		4074	unlink $PIDFILE if <$fh> == $$;
		4075	}
		4076
		4077	# a safer delete_package, copied from Symbol
		4078	sub clear_package($) {
		4079	my $pkg = shift;
		4080
		4081	# expand to full symbol table name if needed
		4082	unless ($pkg =~ /^main::.*::$/) {
		4083	$pkg = "main$pkg" if $pkg =~ /^::/;
		4084	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4085	$pkg .= '::' unless $pkg =~ /::$/;
		4086	}
		4087
		4088	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4089	my $stem_symtab = *{$stem}{HASH};
		4090
		4091	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4092	or return;
		4093
		4094	# clear all symbols
		4095	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4096	for my $name (keys %$leaf_symtab) {
		4097	_gv_clear *{"$pkg$name"};
		4098	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4099	}
		4100	}
		4101
2468	sub reload() {	4102	sub do_reload_perl() {
2469	# can/must only be called in main	4103	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	4104	unless (in_main) {
2471	warn "can only reload from main coroutine";	4105	error "can only reload from main coroutine";
2472	return;	4106	return;
2473	}	4107	}
2474		4108
2475	warn "reloading...";	4109	return if $RELOAD++;
2476		4110
2477	warn "entering sync_job";	4111	my $t1 = AE::time;
2478		4112
		4113	while ($RELOAD) {
		4114	cf::get_slot 0.1, -1, "reload_perl";
		4115	info "perl_reload: reloading...";
		4116
		4117	trace "perl_reload: entering sync_job";
		4118
2479	cf::sync_job {	4119	cf::sync_job {
2480	cf::write_runtime; # external watchdog should not bark
2481	cf::emergency_save;	4120	#cf::emergency_save;
2482	cf::write_runtime; # external watchdog should not bark
2483		4121
2484	warn "syncing database to disk";
2485	BDB::db_env_txn_checkpoint $DB_ENV;
2486
2487	# if anything goes wrong in here, we should simply crash as we already saved
2488
2489	warn "cancelling all WF_AUTOCANCEL watchers";
2490	for (Event::all_watchers) {
2491	$_->cancel if $_->data & WF_AUTOCANCEL;
2492	}
2493
2494	warn "flushing outstanding aio requests";
2495	for (;;) {
2496	BDB::flush;
2497	IO::AIO::flush;
2498	Coro::cede;
2499	last unless IO::AIO::nreqs || BDB::nreqs;
2500	warn "iterate...";
2501	}
2502
2503	++$RELOAD;
2504
2505	warn "cancelling all extension coros";	4122	trace "perl_reload: cancelling all extension coros";
2506	$_->cancel for values %EXT_CORO;	4123	$_->cancel for values %EXT_CORO;
2507	%EXT_CORO = ();	4124	%EXT_CORO = ();
2508		4125
2509	warn "removing commands";	4126	trace "perl_reload: removing commands";
2510	%COMMAND = ();	4127	%COMMAND = ();
2511		4128
2512	warn "removing ext commands";	4129	trace "perl_reload: removing ext/exti commands";
2513	%EXTCMD = ();	4130	%EXTCMD = ();
		4131	%EXTICMD = ();
2514		4132
2515	warn "unloading/nuking all extensions";	4133	trace "perl_reload: unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {	4134	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";	4135	trace "... unloading $pkg";
2518		4136
2519	if (my $cb = $pkg->can ("unload")) {	4137	if (my $cb = $pkg->can ("unload")) {
2520	eval {	4138	eval {
2521	$cb->($pkg);	4139	$cb->($pkg);
2522	1	4140	1
2523	} or warn "$pkg unloaded, but with errors: $@";	4141	} or error "$pkg unloaded, but with errors: $@";
		4142	}
		4143
		4144	trace "... clearing $pkg";
		4145	clear_package $pkg;
2524	}	4146	}
2525		4147
2526	warn "... nuking $pkg";
2527	Symbol::delete_package $pkg;
2528	}
2529
2530	warn "unloading all perl modules loaded from $LIBDIR";	4148	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2531	while (my ($k, $v) = each %INC) {	4149	while (my ($k, $v) = each %INC) {
2532	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4150	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2533		4151
2534	warn "... unloading $k";	4152	trace "... unloading $k";
2535	delete $INC{$k};	4153	delete $INC{$k};
2536		4154
2537	$k =~ s/\.pm$//;	4155	$k =~ s/\.pm$//;
2538	$k =~ s/\//::/g;	4156	$k =~ s/\//::/g;
2539		4157
2540	if (my $cb = $k->can ("unload_module")) {	4158	if (my $cb = $k->can ("unload_module")) {
2541	$cb->();	4159	$cb->();
		4160	}
		4161
		4162	clear_package $k;
2542	}	4163	}
2543		4164
2544	Symbol::delete_package $k;
2545	}
2546
2547	warn "getting rid of safe::, as good as possible";	4165	trace "perl_reload: getting rid of safe::, as good as possible";
2548	Symbol::delete_package "safe::$_"	4166	clear_package "safe::$_"
2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4167	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2550		4168
2551	warn "unloading cf.pm \"a bit\"";	4169	trace "perl_reload: unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	4170	delete $INC{"cf.pm"};
		4171	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2553		4172
2554	# don't, removes xs symbols, too,	4173	# don't, removes xs symbols, too,
2555	# and global variables created in xs	4174	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	4175	#clear_package __PACKAGE__;
2557		4176
2558	warn "unload completed, starting to reload now";	4177	info "perl_reload: unload completed, starting to reload now";
2559		4178
2560	warn "reloading cf.pm";	4179	trace "perl_reload: reloading cf.pm";
2561	require cf;	4180	require cf;
2562	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4181	cf::_connect_to_perl_1;
2563		4182
2564	warn "loading config and database again";	4183	trace "perl_reload: loading config and database again";
2565	cf::cfg_load;	4184	cf::reload_config;
2566		4185
2567	warn "loading extensions";	4186	trace "perl_reload: loading extensions";
2568	cf::load_extensions;	4187	cf::load_extensions;
2569		4188
		4189	if ($REATTACH_ON_RELOAD) {
2570	warn "reattaching attachments to objects/players";	4190	trace "perl_reload: reattaching attachments to objects/players";
2571	_global_reattach; # objects, sockets	4191	_global_reattach; # objects, sockets
2572	warn "reattaching attachments to maps";	4192	trace "perl_reload: reattaching attachments to maps";
2573	reattach $_ for values %MAP;	4193	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	4194	trace "perl_reload: reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	4195	reattach $_ for values %PLAYER;
		4196	}
2576		4197
2577	warn "loading reloadable resources";	4198	cf::_post_init 1;
2578	reload_resources;
2579		4199
2580	warn "leaving sync_job";	4200	trace "perl_reload: leaving sync_job";
2581		4201
2582	1	4202	1
2583	} or do {	4203	} or do {
2584	warn $@;	4204	error $@;
2585	warn "error while reloading, exiting.";	4205	cf::cleanup "perl_reload: error, exiting.";
2586	exit 1;	4206	};
		4207
		4208	--$RELOAD;
		4209	}
		4210
		4211	$t1 = AE::time - $t1;
		4212	info "perl_reload: completed in ${t1}s\n";
		4213	};
		4214
		4215	our $RELOAD_WATCHER; # used only during reload
		4216
		4217	sub reload_perl() {
		4218	# doing reload synchronously and two reloads happen back-to-back,
		4219	# coro crashes during coro_state_free->destroy here.
		4220
		4221	$RELOAD_WATCHER ||= cf::async {
		4222	Coro::AIO::aio_wait cache_extensions;
		4223
		4224	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4225	do_reload_perl;
		4226	undef $RELOAD_WATCHER;
		4227	};
2587	};	4228	};
2588		4229	}
2589	warn "reloaded";
2590	};
2591
2592	our $RELOAD_WATCHER; # used only during reload
2593		4230
2594	register_command "reload" => sub {	4231	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	4232	my ($who, $arg) = @_;
2596		4233
2597	if ($who->flag (FLAG_WIZ)) {	4234	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	4235	$who->message ("reloading server.");
2599		4236	async {
2600	# doing reload synchronously and two reloads happen back-to-back,	4237	$Coro::current->{desc} = "perl_reload";
2601	# coro crashes during coro_state_free->destroy here.
2602
2603	$RELOAD_WATCHER ||= Event->timer (
2604	reentrant => 0,
2605	after => 0,
2606	data => WF_AUTOCANCEL,
2607	cb => sub {
2608	reload;	4238	reload_perl;
2609	undef $RELOAD_WATCHER;
2610	},
2611	);	4239	};
2612	}	4240	}
2613	};	4241	};
2614		4242
2615	unshift @INC, $LIBDIR;	4243	#############################################################################
2616		4244
2617	my $bug_warning = 0;	4245	my $bug_warning = 0;
2618		4246
2619	$TICK_WATCHER = Event->timer (	4247	sub wait_for_tick() {
2620	reentrant => 0,	4248	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2621	parked => 1,	4249
2622	prio => 0,	4250	$WAIT_FOR_TICK->wait;
2623	at => $NEXT_TICK || $TICK,	4251	}
2624	data => WF_AUTOCANCEL,	4252
2625	cb => sub {	4253	sub wait_for_tick_begin() {
		4254	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4255
		4256	my $signal = new Coro::Signal;
		4257	push @WAIT_FOR_TICK_BEGIN, $signal;
		4258	$signal->wait;
		4259	}
		4260
		4261	sub tick {
2626	if ($Coro::current != $Coro::main) {	4262	if ($Coro::current != $Coro::main) {
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4263	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	4264	unless ++$bug_warning > 10;
2629	return;	4265	return;
2630	}	4266	}
2631		4267
2632	$NOW = Event::time;	4268	cf::one_tick; # one server iteration
2633		4269
2634	cf::server_tick; # one server iteration	4270	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2635	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;
2637		4271
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4272	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	4273	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2640	Coro::async_pool {	4274	Coro::async_pool {
		4275	$Coro::current->{desc} = "runtime saver";
2641	write_runtime	4276	write_runtime_sync
2642	or warn "ERROR: unable to write runtime file: $!";	4277	or error "ERROR: unable to write runtime file: $!";
2643	};
2644	}	4278	};
		4279	}
2645		4280
		4281	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4282	$sig->send;
		4283	}
2646	$WAIT_FOR_TICK->broadcast;	4284	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648		4285
2649	# my $AFTER = Event::time;	4286	$LOAD = ($NOW - $TICK_START) / $TICK;
2650	# warn $AFTER - $NOW;#d#	4287	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2651		4288
2652	# if we are delayed by four ticks or more, skip them all	4289	if (0) {
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4290	if ($NEXT_TICK) {
2654		4291	my $jitter = $TICK_START - $NEXT_TICK;
2655	$TICK_WATCHER->at ($NEXT_TICK);	4292	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2656	$TICK_WATCHER->start;	4293	debug "jitter $JITTER\n";#d#
		4294	}
2657	},	4295	}
2658	);	4296	}
2659		4297
2660	{	4298	{
2661	BDB::max_poll_time $TICK * 0.1;	4299	# configure BDB
2662	$BDB_POLL_WATCHER = Event->io (	4300	info "initialising database";
2663	reentrant => 0,	4301
2664	fd => BDB::poll_fileno,
2665	poll => 'r',
2666	prio => 0,
2667	data => WF_AUTOCANCEL,
2668	cb => \&BDB::poll_cb,
2669	);
2670	BDB::min_parallel 8;	4302	BDB::min_parallel 16;
2671		4303	BDB::max_poll_reqs $TICK * 0.1;
2672	BDB::set_sync_prepare {	4304	#$AnyEvent::BDB::WATCHER->priority (1);
2673	my $status;
2674	my $current = $Coro::current;
2675	(
2676	sub {
2677	$status = $!;
2678	$current->ready; undef $current;
2679	},
2680	sub {
2681	Coro::schedule while defined $current;
2682	$! = $status;
2683	},
2684	)
2685	};
2686		4305
2687	unless ($DB_ENV) {	4306	unless ($DB_ENV) {
2688	$DB_ENV = BDB::db_env_create;	4307	$DB_ENV = BDB::db_env_create;
		4308	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4309	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4310	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4311	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4312	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2689		4313
2690	cf::sync_job {	4314	cf::sync_job {
2691	eval {	4315	eval {
2692	BDB::db_env_open	4316	BDB::db_env_open
2693	$DB_ENV,	4317	$DB_ENV,
2694	$BDB_ENV_DIR,	4318	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4319	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4320	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	4321	0666;
2698		4322
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4323	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702	$DB_ENV->set_lk_detect;
2703	};	4324	};
2704		4325
2705	cf::cleanup "db_env_open(db): $@" if $@;	4326	cf::cleanup "db_env_open(db): $@" if $@;
2706	};	4327	};
2707	}	4328	}
		4329
		4330	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4331	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4332	};
		4333	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4334	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4335	};
		4336	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4337	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4338	};
		4339
		4340	info "database initialised";
2708	}	4341	}
2709		4342
2710	{	4343	{
		4344	# configure IO::AIO
		4345
		4346	info "initialising aio";
2711	IO::AIO::min_parallel 8;	4347	IO::AIO::min_parallel 8;
2712
2713	undef $Coro::AIO::WATCHER;
2714	IO::AIO::max_poll_time $TICK * 0.1;	4348	IO::AIO::max_poll_time $TICK * 0.1;
2715	$AIO_POLL_WATCHER = Event->io (	4349	undef $AnyEvent::AIO::WATCHER;
2716	reentrant => 0,	4350	info "aio initialised";
2717	data => WF_AUTOCANCEL,
2718	fd => IO::AIO::poll_fileno,
2719	poll => 'r',
2720	prio => 6,
2721	cb => \&IO::AIO::poll_cb,
2722	);
2723	}	4351	}
		4352
		4353	our $_log_backtrace;
		4354	our $_log_backtrace_last;
		4355
		4356	sub _log_backtrace {
		4357	my ($msg, @addr) = @_;
		4358
		4359	$msg =~ s/\n$//;
		4360
		4361	if ($_log_backtrace_last eq $msg) {
		4362	LOG llevInfo, "[ABT] $msg\n";
		4363	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4364	# limit the # of concurrent backtraces
		4365	} elsif ($_log_backtrace < 2) {
		4366	$_log_backtrace_last = $msg;
		4367	++$_log_backtrace;
		4368	my $perl_bt = Carp::longmess $msg;
		4369	async {
		4370	$Coro::current->{desc} = "abt $msg";
		4371
		4372	my @bt = fork_call {
		4373	@addr = map { sprintf "%x", $_ } @addr;
		4374	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4375	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4376	or die "addr2line: $!";
		4377
		4378	my @funcs;
		4379	my @res = <$fh>;
		4380	chomp for @res;
		4381	while (@res) {
		4382	my ($func, $line) = splice @res, 0, 2, ();
		4383	push @funcs, "[$func] $line";
		4384	}
		4385
		4386	@funcs
		4387	};
		4388
		4389	LOG llevInfo, "[ABT] $perl_bt\n";
		4390	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4391	LOG llevInfo, "[ABT] $_\n" for @bt;
		4392	--$_log_backtrace;
		4393	};
		4394	} else {
		4395	LOG llevInfo, "[ABT] $msg\n";
		4396	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4397	}
		4398	}
		4399
		4400	# load additional modules
		4401	require "cf/$_.pm" for @EXTRA_MODULES;
		4402	cf::_connect_to_perl_2;
2724		4403
2725	END { cf::emergency_save }	4404	END { cf::emergency_save }
2726		4405
2727	1	4406	1
2728		4407

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