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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.240 by root, Mon Apr 16 10:14:25 2007 UTC vs.
Revision 1.589 by root, Sun Nov 4 01:01:13 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;
21	use Coro::Storable;	53	use Coro::Storable;
		54	use Coro::Util ();
22		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
23	use BDB ();	58	use BDB ();
24	use Data::Dumper;	59	use Data::Dumper;
25	use Digest::MD5;
26	use Fcntl;	60	use Fcntl;
27	use YAML::Syck ();	61	use YAML::XS ();
28	use IO::AIO 2.32 ();	62	use IO::AIO ();
29	use Time::HiRes;	63	use Time::HiRes;
30	use Compress::LZF;	64	use Compress::LZF;
		65	use Digest::MD5 ();
		66
		67	AnyEvent::detect;
31		68
32	# configure various modules to our taste	69	# configure various modules to our taste
33	#	70	#
34	$Storable::canonical = 1; # reduce rsync transfers	71	$Storable::canonical = 1; # reduce rsync transfers
35	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";
36	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
37		79
38	$Event::Eval = 1; # no idea why this is required, but it is	80	# strictly for debugging
39		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44		82
45	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;
46		86
47	our %COMMAND = ();	87	our %COMMAND = ();
48	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
49		89
50	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	93	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	94	our %EXT_MAP = (); # pluggable maps
54		95
55	our $RELOAD; # number of reloads so far	96	our $RELOAD; # number of reloads so far, non-zero while in reload
56	our @EVENT;	97	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
58		100
59	our $TICK = MAX_TIME * 1e-6;	101	our $CONFDIR = confdir;
60	our $TICK_WATCHER;	102
61	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(!)
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	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;
64	our $NOW;	143	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off
66		144
67	our $BDB_POLL_WATCHER;	145	our (%PLAYER, %PLAYER_LOADING); # all users
68	our $DB_ENV;	146	our (%MAP, %MAP_LOADING ); # all maps
69
70	our %CFG;
71
72	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;
74
75	our %PLAYER; # all users
76	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	147	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		148
81	# 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 ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		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 $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
		164
84	binmode STDOUT;	165	binmode STDOUT;
85	binmode STDERR;	166	binmode STDERR;
86		167
87	# read virtual server time, if available	168	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
89	open my $fh, "<", cf::localdir . "/runtime"	170	open my $fh, "<", $RUNTIMEFILE
90	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
91	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
92	}	173	}
93		174
94	mkdir cf::localdir;	175	eval "sub TICK() { $TICK } 1" or die;
95	mkdir cf::localdir . "/" . cf::playerdir;	176
96	mkdir cf::localdir . "/" . cf::tmpdir;	177	mkdir $_
97	mkdir cf::localdir . "/" . cf::uniquedir;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		179
101	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
102		181
103	sub cf::map::normalise;	182	sub cf::map::normalise;
104		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
105	#############################################################################	188	#############################################################################
106		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
107	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
108		202
109	=over 4	203	=over 4
110		204
111	=item $cf::UPTIME	205	=item $cf::UPTIME
112		206
113	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.
114		223
115	=item $cf::RUNTIME	224	=item $cf::RUNTIME
116		225
117	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
118	every server tick.	227	every server tick.
119		228
120	=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
121		232
122	The perl library directory, where extensions and cf-specific modules can	233	Various directories - "/etc", read-only install directory, perl-library
123	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.
124		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
125	=item $cf::NOW	244	=item $cf::LOAD
126		245
127	The time of the last (current) server tick.	246	The raw value load value from the last tick.
128
129	=item $cf::TICK
130
131	The interval between server ticks, in seconds.
132		247
133	=item %cf::CFG	248	=item %cf::CFG
134		249
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
136	from wherever your confdir points to.	251	from wherever your confdir points to.
137		252
138	=item cf::wait_for_tick, cf::wait_for_tick_begin	253	=item cf::wait_for_tick, cf::wait_for_tick_begin
139		254
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	256	returns directly I<after> the tick processing (and consequently, can only wake one thread
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
		287
144	=back	288	=back
145		289
146	=cut	290	=cut
147		291
148	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
149	*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 {
150	my $msg = join "", @_;	299	my $msg = join "", @_;
151	utf8::encode $msg;
152		300
153	$msg .= "\n"	301	$msg .= "\n"
154	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
155		303
		304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		305
156	LOG llevError, $msg;	306	LOG llevWarn, $msg;
157	};	307	};
158	}	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	};
159		322
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@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';
165	@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)
166		330
167	# 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
168	# within the Safe compartment.	332	# within the Safe compartment.
169	for my $pkg (qw(	333	for my $pkg (qw(
170	cf::global cf::attachable	334	cf::global cf::attachable
171	cf::object cf::object::player	335	cf::object cf::object::player
172	cf::client cf::player	336	cf::client cf::player
173	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
174	cf::map cf::party cf::region	339	cf::party cf::region
175	)) {	340	)) {
176	no strict 'refs';
177	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
178	}	342	}
179		343
180	$Event::DIED = sub {	344	$EV::DIED = sub {
181	warn "error in event callback: @_";	345	warn "error in event callback: $@";
182	};	346	};
		347
		348	#############################################################################
		349
		350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
183		354
184	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
185		356
186	=over 4	357	=over 4
187		358
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	378	$d
208	} || "[unable to dump $_[0]: '$@']";	379	} || "[unable to dump $_[0]: '$@']";
209	}	380	}
210		381
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	382	=item $scalar = cf::load_file $path
212		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($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
213	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
214		435
215	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
216		437
217	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
218		439
219	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
220		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
221	=item cf::lock_wait $string	511	=item cf::lock_wait $string
222		512
223	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
224		514
225	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
226		516
227	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
228	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,
229	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
230	returned.	520	returned.
231		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
232	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
233	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
234		527
235	=cut	528	=item $locked = cf::lock_active $string
236		529
237	our %LOCK;	530	Return true if the lock is currently active, i.e. somebody has locked it.
		531
		532	=cut
		533
		534	our $LOCKS = new Coro::SemaphoreSet;
238		535
239	sub lock_wait($) {	536	sub lock_wait($) {
240	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	538	}
248		539
249	sub lock_acquire($) {	540	sub lock_acquire($) {
250	my ($key) = @_;	541	$LOCKS->guard ($_[0])
		542	}
251		543
252	# wait, to be sure we are not locked	544	sub lock_active($) {
253	lock_wait $key;	545	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	546	}
262		547
263	sub freeze_mainloop {	548	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
265		550
266	my $guard = Coro::guard {	551	&Guard::guard (\&tick_inhibit_dec);
267	$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($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
268	};	621	}
269	$TICK_WATCHER->stop;	622	};
270	$guard	623
		624	sub get_slot($;$$) {
		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	$sig->wait;
271	}	637	}
272		638
273	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
274		640
275	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		646
281	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
282		648
283	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
284		650
285	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
288		655
289	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
292	fast or be very important.	659	fast or be very important.
…		…
294	=cut	661	=cut
295		662
296	sub sync_job(&) {	663	sub sync_job(&) {
297	my ($job) = @_;	664	my ($job) = @_;
298		665
299	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
300	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
302		671
303	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	673
305	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
306		675
307	my $busy = 1;	676	my $busy = 1;
308	my @res;	677	my @res;
309		678
310	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	681	@res = eval { $job->() };
312	warn $@ if $@;	682	error $@ if $@;
313	undef $busy;	683	undef $busy;
314	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
315		685
316	while ($busy) {	686	while ($busy) {
317	Coro::cede or Event::one_event;	687	if (Coro::nready) {
		688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
318	}	691	}
		692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
319		697
320	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
321	} else {	699	} else {
322	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
323		701
…		…
343	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
344		722
345	$coro	723	$coro
346	}	724	}
347		725
348	sub write_runtime {	726	=item fork_call { }, @args
349	my $guard = cf::lock_acquire "write_runtime";
350		727
351	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.
352		732
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	733	=cut
354	or return;
355		734
356	my $value = $cf::RUNTIME + 90 + 10;	735	sub post_fork {
357	# 10 is the runtime save interval, for a monotonic clock	736	reset_signals;
358	# 60 allows for the watchdog to kill the server.	737	}
359		738
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	739	sub fork_call(&@) {
361	and return;	740	my ($cb, @args) = @_;
362		741
363	# always fsync - this file is important	742	# we seemingly have to make a local copy of the whole thing,
364	aio_fsync $fh	743	# otherwise perl prematurely frees the stuff :/
365	and return;	744	# TODO: investigate and fix (likely this will be rather laborious)
366		745
367	close $fh	746	my @res = Coro::Util::fork_eval {
368	or return;	747	cf::post_fork;
		748	&$cb
		749	} @args;
369		750
370	aio_rename "$runtime~", $runtime	751	wantarray ? @res : $res[-1]
371	and return;	752	}
372		753
		754	sub objinfo {
373	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"
374	}	918	}
375		919
376	=item cf::datalog type => key => value, ...	920	=item cf::datalog type => key => value, ...
377		921
378	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.
379		923
380	=cut	924	=cut
381		925
382	sub datalog($@) {	926	sub datalog($@) {
383	my ($type, %kv) = @_;	927	my ($type, %kv) = @_;
384	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
385	}	929	}
386		930
387	=back	931	=back
388		932
389	=cut	933	=cut
390		934
391	#############################################################################	935	#############################################################################
392		936
393	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
394		938
395	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
396	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")
397	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
398		942
399	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>
400	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
401	crossfire+).	945	Deliantra).
402		946
403	=over 4	947	=over 4
404		948
405	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
406		950
…		…
450	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
451		995
452	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
454		998
455	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
456	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.
457		1001
458	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
459		1003
460	=over 4	1004	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
570		1114
571	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		1119
576	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
578		1122
579	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
584		1128
585	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
586	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
587		1131
588	} elsif (ref $type) {	1132	} elsif (ref $type) {
589	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
590		1134
591	} else {	1135	} else {
592	shift @arg;	1136	shift @arg;
593	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
594	}	1138	}
595	}	1139	}
596	}	1140	}
597		1141
598	sub _object_attach {	1142	sub _object_attach {
…		…
608	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
609	}	1153	}
610		1154
611	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
612	} else {	1156	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
614	}	1158	}
615		1159
616	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
617	}	1161	}
618		1162
…		…
620	if (ref $_[0]) {	1164	if (ref $_[0]) {
621	_object_attach @_;	1165	_object_attach @_;
622	} else {	1166	} else {
623	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
624	}	1168	}
		1169	_recalc_want;
625	};	1170	};
626		1171
627	# all those should be optimised	1172	# all those should be optimised
628	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
633	reattach ($obj);	1178	reattach ($obj);
634	} else {	1179	} else {
635	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
636	}	1181	}
		1182	_recalc_want;
637	};	1183	};
638		1184
639	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
641		1187
…		…
656	";	1202	";
657	die if $@;	1203	die if $@;
658	}	1204	}
659		1205
660	our $override;	1206	our $override;
661	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?
662		1208
663	sub override {	1209	sub override {
664	$override = 1;	1210	$override = 1;
665	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
666	}	1212	}
667		1213
668	sub do_invoke {	1214	sub do_invoke {
669	my $event = shift;	1215	my $event = shift;
670	my $callbacks = shift;	1216	my $callbacks = shift;
671		1217
672	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
673		1219
674	local $override;	1220	local $override;
675		1221
676	for (@$callbacks) {	1222	for (@$callbacks) {
677	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
678		1224
679	if ($@) {	1225	if ($@) {
680	warn "$@";
681	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
682	override;	1227	override;
683	}	1228	}
684		1229
685	return 1 if $override;	1230	return 1 if $override;
686	}	1231	}
687		1232
688	0	1233	0
689	}	1234	}
690		1235
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1237
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1239
695	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
696		1241
697	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
698	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
699	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1245
701	=back	1246	=back
702		1247
703	=cut	1248	=cut
704		1249
705	#############################################################################	1250	#############################################################################
706	# 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, $ob2
		1293	}
707		1294
708	sub reattach {	1295	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1297	my ($obj) = @_;
711		1298
		1299	# no longer needed after getting rid of delete_package?
712	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
713		1301
714	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
715		1303
716	@$registry = ();	1304	@$registry = ();
717		1305
…		…
722	for (@$attach) {	1310	for (@$attach) {
723	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
724	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
725	}	1313	}
726	} else {	1314	} else {
727	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
728	}	1316	}
729	}	1317	}
730	}	1318	}
731		1319
732	cf::attachable->attach (	1320	cf::attachable->attach (
733	prio => -1000000,	1321	prio => -1000000,
734	on_instantiate => sub {	1322	on_instantiate => sub {
735	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
736		1324
737	$data = from_json $data;	1325	$data = decode_json $data;
738		1326
739	for (@$data) {	1327	for (@$data) {
740	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
741		1329
742	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1346	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
760		1348
761	sync_job {	1349	sync_job {
762	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
765		1355
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	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	}
770	close $fh;	1363	aio_close $fh;
771		1364
772	if (@$objs) {	1365	if (@$objs) {
773	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) {
774	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
777	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	}
778	close $fh;	1374	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
780	}	1376	}
781	} else {	1377	} else {
782	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
783	}	1379	}
784		1380
785	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1385	} else {
787	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
788	}	1387	}
789	} else {	1388	} else {
790	aio_unlink $filename;	1389	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
792	}	1391	}
793	}	1392	};
794	}	1393	}
795		1394
796	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
798		1397
…		…
810	or return;	1409	or return;
811		1410
812	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
814	or return;	1413	or return;
		1414
815	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
816	}	1417	}
817		1418
		1419	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
820	return ($data, $av);	1424	($data, $av)
821	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
822		1432
823	#############################################################################	1433	#############################################################################
824	# command handling &c	1434	# command handling &c
825		1435
826	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1450	}
841		1451
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1453
844	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.
845		1459
846	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
847	called.	1461	called.
848		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
849	=cut	1474	=cut
850		1475
851	sub register_extcmd {	1476	sub register_extcmd {
852	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
853		1478
854	$EXTCMD{$name} = $cb;	1479	$EXTCMD{$name} = $cb;
855	}	1480	}
856		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
		1489
857	cf::player->attach (	1490	cf::player->attach (
858	on_command => sub {	1491	on_unknown_command => sub {
859	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
860		1493
861	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
862	or return;	1495	or return;
863		1496
…		…
868	cf::override;	1501	cf::override;
869	},	1502	},
870	on_extcmd => sub {	1503	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
872		1505
873	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1507
875	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
881	} else {	1520	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1522	}
884		1523
885	cf::override;	1524	cf::override;
886	},	1525	},
887	);	1526	);
888		1527
		1528	# "readahead" all extensions
889	sub load_extension {	1529	sub cache_extensions {
890	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
891		1531
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}	1535	}
917	die $@;
918	}	1536	};
919		1537
920	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;
921	}	1550	}
922		1551
923	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
924	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1561	next unless -r $path;
926	eval {	1562
927	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 $active;
		1634	}
928	1	1635	}
929	} or warn "$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	}
930	}	1648	};
931	}	1649	}
932		1650
933	#############################################################################	1651	#############################################################################
934		1652
		1653	=back
		1654
935	=head2 CORE EXTENSIONS	1655	=head2 CORE EXTENSIONS
936		1656
937	Functions and methods that extend core crossfire objects.	1657	Functions and methods that extend core deliantra objects.
938		1658
939	=cut	1659	=cut
940		1660
941	package cf::player;	1661	package cf::player;
942		1662
…		…
944		1664
945	=head3 cf::player	1665	=head3 cf::player
946		1666
947	=over 4	1667	=over 4
948		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
949	=item cf::player::find $login	1683	=item cf::player::find $login
950		1684
951	Returns the given player object, loading it if necessary (might block).	1685	Returns the given player object, loading it if necessary (might block).
952		1686
953	=cut	1687	=cut
954		1688
955	sub playerdir($) {	1689	sub playerdir($) {
956	cf::localdir	1690	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1691	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1692	}
962		1693
963	sub path($) {	1694	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1695	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
974		1705
975	sub exists($) {	1706	sub exists($) {
976	my ($login) = @_;	1707	my ($login) = @_;
977		1708
978	$cf::PLAYER{$login}	1709	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1710	or !aio_stat path $login
980	}	1711	}
981		1712
982	sub find($) {	1713	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1714	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1715	my $login = $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1725	aio_unlink +(playerdir $login) . "/$login.pl";
995		1726
996	my $pl = load_pl path $login	1727	my $f = new_from_file cf::object::thawer path $login
997	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;
998	$cf::PLAYER{$login} = $pl	1735	$cf::PLAYER{$login} = $pl
999	}	1736	}
1000	}	1737	}
1001	}	1738	}
		1739
		1740	cf::player->attach (
		1741	on_load => sub {
		1742	my ($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	);
1002		1752
1003	sub save($) {	1753	sub save($) {
1004	my ($pl) = @_;	1754	my ($pl) = @_;
1005		1755
1006	return if $pl->{deny_save};	1756	return if $pl->{deny_save};
…		…
1011	return if $pl->{deny_save};	1761	return if $pl->{deny_save};
1012		1762
1013	aio_mkdir playerdir $pl, 0770;	1763	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1764	$pl->{last_save} = $cf::RUNTIME;
1015		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
1016	$pl->save_pl ($path);	1771	$pl->save_pl ($path);
1017	Coro::cede;	1772	cf::cede_to_tick;
1018	}	1773	}
1019		1774
1020	sub new($) {	1775	sub new($) {
1021	my ($login) = @_;	1776	my ($login) = @_;
1022		1777
…		…
1028	$cf::PLAYER{$login} = $self;	1783	$cf::PLAYER{$login} = $self;
1029		1784
1030	$self	1785	$self
1031	}	1786	}
1032		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
1033	=item $pl->quit_character	1798	=item $pl->quit_character
1034		1799
1035	Nukes the player without looking back. If logged in, the connection will	1800	Nukes the player without looking back. If logged in, the connection will
1036	be destroyed. May block for a long time.	1801	be destroyed. May block for a long time.
1037		1802
…		…
1041	my ($pl) = @_;	1806	my ($pl) = @_;
1042		1807
1043	my $name = $pl->ob->name;	1808	my $name = $pl->ob->name;
1044		1809
1045	$pl->{deny_save} = 1;	1810	$pl->{deny_save} = 1;
1046	$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
1047		1812
1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1049	$pl->deactivate;	1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
1051	$pl->ns->destroy if $pl->ns;	1820	$pl->ns->destroy if $pl->ns;
1052		1821
1053	my $path = playerdir $pl;	1822	my $path = playerdir $pl;
1054	my $temp = "$path~$cf::RUNTIME~deleting~";	1823	my $temp = "$path~$cf::RUNTIME~deleting~";
1055	aio_rename $path, $temp;	1824	aio_rename $path, $temp;
…		…
1084	while and may block, so not sync_job-capable, ever.	1853	while and may block, so not sync_job-capable, ever.
1085		1854
1086	=cut	1855	=cut
1087		1856
1088	sub list_logins {	1857	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1858	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1859	or return [];
1091		1860
1092	my @logins;	1861	my @logins;
1093		1862
1094	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") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1870	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
1098		1873
1099	utf8::decode $login;	1874	utf8::decode $login;
1100	push @logins, $login;	1875	push @logins, $login;
1101	}	1876	}
1102		1877
1103	\@logins	1878	\@logins
1104	}	1879	}
1105		1880
1106	=item $player->maps	1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
1107		1884
1108	Returns an arrayref of map paths that are private for this	1885	Returns an arrayref of map paths that are private for this
1109	player. May block.	1886	player. May block.
1110		1887
1111	=cut	1888	=cut
…		…
1129	}	1906	}
1130		1907
1131	\@paths	1908	\@paths
1132	}	1909	}
1133		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
1134	=item $player->ext_reply ($msgid, %msg)	1915	=item $player->ext_reply ($msgid, @msg)
1135		1916
1136	Sends an ext reply to the player.	1917	Sends an ext reply to the player.
1137		1918
1138	=cut	1919	=cut
1139		1920
1140	sub ext_reply($$%) {	1921	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1922	my ($self, $id, @msg) = @_;
1142		1923
1143	$msg{msgid} = $id;	1924	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1925	}
1147		1926
1148	=item $player->ext_event ($type, %msg)	1927	=item $player->ext_msg ($type, @msg)
1149		1928
1150	Sends an ext event to the client.	1929	Sends an ext event to the client.
1151		1930
1152	=cut	1931	=cut
1153		1932
1154	sub ext_event($$%) {	1933	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1934	my ($self, $type, @msg) = @_;
1156		1935
1157	$self->ns->ext_event ($type, %msg);	1936	$self->ns->ext_msg ($type, @msg);
1158	}	1937	}
1159		1938
1160	=head3 cf::region	1939	=head3 cf::region
1161		1940
1162	=over 4	1941	=over 4
…		…
1165		1944
1166	package cf::region;	1945	package cf::region;
1167		1946
1168	=item cf::region::find_by_path $path	1947	=item cf::region::find_by_path $path
1169		1948
1170	Tries to decuce the probable region for a map knowing only its path.	1949	Tries to decuce the likely region for a map knowing only its path.
1171		1950
1172	=cut	1951	=cut
1173		1952
1174	sub find_by_path($) {	1953	sub find_by_path($) {
1175	my ($path) = @_;	1954	my ($path) = @_;
1176		1955
		1956	$path =~ s/^~[^\/]*//; # skip ~login
		1957
1177	my ($match, $specificity);	1958	my ($match, $specificity);
1178		1959
1179	for my $region (list) {	1960	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1961	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1962	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1963	if $region->specificity > $specificity;
1183	}	1964	}
1184	}	1965	}
1185		1966
…		…
1206	our $MAX_RESET = 3600;	1987	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1988	our $DEFAULT_RESET = 3000;
1208		1989
1209	sub generate_random_map {	1990	sub generate_random_map {
1210	my ($self, $rmp) = @_;	1991	my ($self, $rmp) = @_;
1211	# mit "rum" bekleckern, nicht	1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
1212	$self->_create_random_map (	1995	$self->_create_random_map ($rmp);
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1216	$rmp->{exit_on_final_map},
1217	$rmp->{xsize}, $rmp->{ysize},
1218	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1219	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1220	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1221	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1222	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1223	(cf::region::find $rmp->{region}), $rmp->{custom}
1224	)
1225	}	1996	}
1226		1997
1227	=item cf::map->register ($regex, $prio)	1998	=item cf::map->register ($regex, $prio)
1228		1999
1229	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
…		…
1234		2005
1235	sub register {	2006	sub register {
1236	my (undef, $regex, $prio) = @_;	2007	my (undef, $regex, $prio) = @_;
1237	my $pkg = caller;	2008	my $pkg = caller;
1238		2009
1239	no strict;
1240	push @{"$pkg\::ISA"}, __PACKAGE__;	2010	push @{"$pkg\::ISA"}, __PACKAGE__;
1241		2011
1242	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1243	}	2013	}
1244		2014
1245	# also paths starting with '/'	2015	# also paths starting with '/'
1246	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1247		2017
1248	sub thawer_merge {	2018	sub thawer_merge {
1249	my ($self, $merge) = @_;	2019	my ($self, $merge) = @_;
1250		2020
1251	# we have to keep some variables in memory intact	2021	# we have to keep some variables in memory intact
1252	local $self->{path};	2022	local $self->{path};
1253	local $self->{load_path};	2023	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		2024
1257	$self->SUPER::thawer_merge ($merge);	2025	$self->SUPER::thawer_merge ($merge);
1258	}	2026	}
1259		2027
1260	sub normalise {	2028	sub normalise {
1261	my ($path, $base) = @_;	2029	my ($path, $base) = @_;
1262		2030
1263	$path = "$path"; # make sure its a string	2031	$path = "$path"; # make sure it's a string
1264		2032
1265	$path =~ s/\.map$//;	2033	$path =~ s/\.map$//;
1266		2034
1267	# map plan:	2035	# map plan:
1268	#	2036	#
…		…
1283	$base =~ s{[^/]+/?$}{};	2051	$base =~ s{[^/]+/?$}{};
1284	$path = "$base/$path";	2052	$path = "$base/$path";
1285	}	2053	}
1286		2054
1287	for ($path) {	2055	for ($path) {
1288	redo if s{//}{/};
1289	redo if s{/\.?/}{/};	2056	redo if s{/\.?/}{/};
1290	redo if s{/[^/]+/\.\./}{/};	2057	redo if s{/[^/]+/\.\./}{/};
1291	}	2058	}
1292		2059
1293	$path	2060	$path
…		…
1307	$self->init; # pass $1 etc.	2074	$self->init; # pass $1 etc.
1308	return $self;	2075	return $self;
1309	}	2076	}
1310	}	2077	}
1311		2078
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
1313	()	2080	()
1314	}	2081	}
1315		2082
		2083	# may re-bless or do other evil things
1316	sub init {	2084	sub init {
1317	my ($self) = @_;	2085	my ($self) = @_;
1318		2086
1319	$self	2087	$self
1320	}	2088	}
…		…
1332		2100
1333	# the original (read-only) location	2101	# the original (read-only) location
1334	sub load_path {	2102	sub load_path {
1335	my ($self) = @_;	2103	my ($self) = @_;
1336		2104
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2105	"$MAPDIR/$self->{path}.map"
1338	}	2106	}
1339		2107
1340	# the temporary/swap location	2108	# the temporary/swap location
1341	sub save_path {	2109	sub save_path {
1342	my ($self) = @_;	2110	my ($self) = @_;
1343		2111
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2113	"$TMPDIR/$path.map"
1346	}	2114	}
1347		2115
1348	# the unique path, undef == no special unique path	2116	# the unique path, undef == no special unique path
1349	sub uniq_path {	2117	sub uniq_path {
1350	my ($self) = @_;	2118	my ($self) = @_;
1351		2119
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2121	"$UNIQUEDIR/$path"
1354	}	2122	}
1355		2123
1356	# and all this just because we cannot iterate over	2124	sub decay_objects {
1357	# all maps in C++...
1358	sub change_all_map_light {
1359	my ($change) = @_;	2125	my ($self) = @_;
1360		2126
1361	$_->change_map_light ($change)	2127	return if $self->{deny_reset};
1362	for grep $_->outdoor, values %cf::MAP;	2128
		2129	$self->do_decay_objects;
1363	}	2130	}
1364		2131
1365	sub unlink_save {	2132	sub unlink_save {
1366	my ($self) = @_;	2133	my ($self) = @_;
1367		2134
…		…
1372		2139
1373	sub load_header_from($) {	2140	sub load_header_from($) {
1374	my ($self, $path) = @_;	2141	my ($self, $path) = @_;
1375		2142
1376	utf8::encode $path;	2143	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	or return;	2145	or return;
1382		2146
		2147	$self->_load_header ($f)
		2148	or return;
		2149
		2150	local $MAP_LOADING{$self->{path}} = $self;
		2151	$f->resolve_delayed_derefs;
		2152
1383	$self->{load_path} = $path;	2153	$self->{load_path} = $path;
1384		2154
1385	1	2155	1
1386	}	2156	}
1387		2157
		2158	# used to laod the header of an original map
1388	sub load_header_orig {	2159	sub load_header_orig {
1389	my ($self) = @_;	2160	my ($self) = @_;
1390		2161
1391	$self->load_header_from ($self->load_path)	2162	$self->load_header_from ($self->load_path)
1392	}	2163	}
1393		2164
		2165	# used to laod the header of an instantiated map
1394	sub load_header_temp {	2166	sub load_header_temp {
1395	my ($self) = @_;	2167	my ($self) = @_;
1396		2168
1397	$self->load_header_from ($self->save_path)	2169	$self->load_header_from ($self->save_path)
1398	}	2170	}
1399		2171
		2172	# called after loading the header from an instantiated map
1400	sub prepare_temp {	2173	sub prepare_temp {
1401	my ($self) = @_;	2174	my ($self) = @_;
1402		2175
1403	$self->last_access ((delete $self->{last_access})	2176	$self->last_access ((delete $self->{last_access})
1404	|| $cf::RUNTIME); #d#	2177	|| $cf::RUNTIME); #d#
1405	# safety	2178	# safety
1406	$self->{instantiate_time} = $cf::RUNTIME	2179	$self->{instantiate_time} = $cf::RUNTIME
1407	if $self->{instantiate_time} > $cf::RUNTIME;	2180	if $self->{instantiate_time} > $cf::RUNTIME;
1408	}	2181	}
1409		2182
		2183	# called after loading the header from an original map
1410	sub prepare_orig {	2184	sub prepare_orig {
1411	my ($self) = @_;	2185	my ($self) = @_;
1412		2186
1413	$self->{load_original} = 1;	2187	$self->{load_original} = 1;
1414	$self->{instantiate_time} = $cf::RUNTIME;	2188	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1425	$self->load_header_orig	2199	$self->load_header_orig
1426	or return;	2200	or return;
1427	$self->prepare_orig;	2201	$self->prepare_orig;
1428	}	2202	}
1429		2203
		2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
		2206
1430	$self->default_region (cf::region::find_by_path $self->{path})	2207	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	2208	unless $self->default_region;
1432		2209
1433	1	2210	1
1434	}	2211	}
1435		2212
1436	sub find;	2213	sub find;
1437	sub find {	2214	sub find {
1438	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1439		2216
		2217	cf::cede_to_tick;
		2218
1440	$path = normalise $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1441		2220
		2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	2222	my $guard2 = cf::lock_acquire "map_find:$path";
1443		2223
1444	$cf::MAP{$path} || do {	2224	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";
1446	my $map = new_from_path cf::map $path	2225	my $map = new_from_path cf::map $path
1447	or return;	2226	or return;
1448		2227
1449	$map->{last_save} = $cf::RUNTIME;	2228	$map->{last_save} = $cf::RUNTIME;
1450		2229
1451	$map->load_header	2230	$map->load_header
1452	or return;	2231	or return;
1453		2232
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2234	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1457	$map->reset;	2238	$map->reset;
1458	undef $guard;
1459	return find $path;	2239	return find $path;
1460	}	2240	}
1461		2241
1462	$cf::MAP{$path} = $map	2242	$cf::MAP{$path} = $map
1463	}	2243	}
1464	}	2244	}
1465		2245
1466	sub pre_load { }	2246	sub pre_load { }
1467	sub post_load { }	2247	#sub post_load { } # XS
1468		2248
1469	sub load {	2249	sub load {
1470	my ($self) = @_;	2250	my ($self) = @_;
1471		2251
1472	local $self->{deny_reset} = 1; # loading can take a long time	2252	local $self->{deny_reset} = 1; # loading can take a long time
1473		2253
1474	my $path = $self->{path};	2254	my $path = $self->{path};
		2255
		2256	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2257	my $guard = cf::lock_acquire "map_data:$path";
1476		2258
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2259	return unless $self->valid;
		2260	return unless $self->state == cf::MAP_SWAPPED;
1478		2261
1479	$self->in_memory (cf::MAP_LOADING);
1480
1481	$self->alloc;	2262	$self->alloc;
1482		2263
1483	$self->pre_load;	2264	$self->pre_load;
1484	Coro::cede;	2265	cf::cede_to_tick;
1485		2266
1486	$self->_load_objects ($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)
1487	or return;	2271	or return;
1488		2272
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1490	if delete $self->{load_original};	2274	if delete $self->{load_original};
1491		2275
1492	if (my $uniq = $self->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2277	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2280	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1497	}	2285	}
1498	}
1499		2286
1500	Coro::cede;	2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1501	# now do the right thing for maps	2296	# now do the right thing for maps
1502	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;
1510	$self->set_darkness_map;
1511	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2299	unless $self->difficulty;
1513	Coro::cede;	2300	cf::cede_to_tick;
1514	$self->activate;	2301
1515	Coro::cede;	2302	unless ($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);
1516	}	2312	}
1517		2313
1518	$self->post_load;	2314	$self->post_load;
1519	Coro::cede;
1520		2315
1521	$self->in_memory (cf::MAP_IN_MEMORY);	2316	1
1522	}	2317	}
1523		2318
		2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
1524	sub customise_for {	2322	sub customise_for {
1525	my ($self, $ob) = @_;	2323	my ($self, $ob) = @_;
1526		2324
1527	return find "~" . $ob->name . "/" . $self->{path}	2325	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2326	if $self->per_player;
1529		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
1530	$self	2331	$self
1531	}
1532
1533	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {
1535	my ($map) = @_;
1536
1537	my @diag; # diagonal neighbours
1538
1539	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)
1541	or next;
1542	$neigh = find $neigh, $map
1543	or next;
1544	$neigh->load;
1545
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}
1549
1550	for (@diag) {
1551	my $neigh = find @$_
1552	or next;
1553	$neigh->load;
1554	}
1555	}	2332	}
1556		2333
1557	sub find_sync {	2334	sub find_sync {
1558	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1559		2336
1560	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, $origin
1561	}	2342	}
1562		2343
1563	sub do_load_sync {	2344	sub do_load_sync {
1564	my ($map) = @_;	2345	my ($map) = @_;
1565		2346
1566	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;
1567	}	2352	}
1568		2353
1569	our %MAP_PREFETCH;	2354	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2355	our $MAP_PREFETCHER = undef;
1571		2356
1572	sub find_async {	2357	sub find_async {
1573	my ($path, $origin) = @_;	2358	my ($path, $origin, $load) = @_;
1574		2359
1575	$path = normalise $path, $origin && $origin->{path};	2360	$path = normalise $path, $origin;
1576		2361
1577	if (my $map = $cf::MAP{$path}) {	2362	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2363	return $map if !$load || $map->linkable;
1579	}	2364	}
1580		2365
1581	undef $MAP_PREFETCH{$path};	2366	$MAP_PREFETCH{$path} |= $load;
		2367
1582	$MAP_PREFETCHER ||= cf::async {	2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
1583	while (%MAP_PREFETCH) {	2371	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2372	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2373	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2374	$map->load if $v;
		2375	}
1588		2376
1589	delete $MAP_PREFETCH{$path};	2377	delete $MAP_PREFETCH{$k};
1590	}	2378	}
1591	}	2379	}
1592	undef $MAP_PREFETCHER;	2380	undef $MAP_PREFETCHER;
1593	};	2381	};
1594	$MAP_PREFETCHER->prio (6);	2382	$MAP_PREFETCHER->prio (6);
1595		2383
1596	()	2384	()
1597	}	2385	}
1598		2386
		2387	# common code, used by both ->save and ->swapout
1599	sub save {	2388	sub _save {
1600	my ($self) = @_;	2389	my ($self) = @_;
1601
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
1603		2390
1604	$self->{last_save} = $cf::RUNTIME;	2391	$self->{last_save} = $cf::RUNTIME;
1605		2392
1606	return unless $self->dirty;	2393	return unless $self->dirty;
1607		2394
…		…
1613	return if $self->{deny_save};	2400	return if $self->{deny_save};
1614		2401
1615	local $self->{last_access} = $self->last_access;#d#	2402	local $self->{last_access} = $self->last_access;#d#
1616		2403
1617	cf::async {	2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2406	$_->contr->save for $self->players;
1619	};	2407	};
		2408
		2409	cf::get_slot 0.02;
1620		2410
1621	if ($uniq) {	2411	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1624	} else {	2414	} else {
1625	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1626	}	2416	}
1627	}	2417	}
1628		2418
		2419	sub save {
		2420	my ($self) = @_;
		2421
		2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2423
		2424	$self->_save;
		2425	}
		2426
1629	sub swap_out {	2427	sub swap_out {
1630	my ($self) = @_;	2428	my ($self) = @_;
1631		2429
1632	# save first because save cedes
1633	$self->save;
1634
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1637	return if $self->players;	2434	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;
1639	return if $self->{deny_save};
1640		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
1641	$self->clear;	2445	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2446	}
1644		2447
1645	sub reset_at {	2448	sub reset_at {
1646	my ($self) = @_;	2449	my ($self) = @_;
1647		2450
1648	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1651		2453
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2455	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2456
…		…
1665	my ($self) = @_;	2467	my ($self) = @_;
1666		2468
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2470
1669	return if $self->players;	2471	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2472
1672	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
1673		2474
1674	$self->in_memory (cf::MAP_SWAPPED);	2475	$self->state (cf::MAP_SWAPPED);
1675		2476
1676	# need to save uniques path	2477	# need to save uniques path
1677	unless ($self->{deny_save}) {	2478	unless ($self->{deny_save}) {
1678	my $uniq = $self->uniq_path; utf8::encode $uniq;	2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
1679		2480
…		…
1681	if $uniq;	2482	if $uniq;
1682	}	2483	}
1683		2484
1684	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1685		2486
		2487	$self->deactivate;
		2488	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2489	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2490
1690	$self->unlink_save;	2491	$self->unlink_save;
1691	$self->destroy;	2492	$self->destroy;
1692	}	2493	}
1693		2494
1694	my $nuke_counter = "aaaa";	2495	my $nuke_counter = "aaaa";
1695		2496
1696	sub nuke {	2497	sub nuke {
1697	my ($self) = @_;	2498	my ($self) = @_;
1698		2499
		2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2502
1699	delete $cf::MAP{$self->path};	2503	delete $cf::MAP{$self->path};
1700		2504
1701	$self->unlink_save;	2505	$self->unlink_save;
1702		2506
1703	bless $self, "cf::map";	2507	bless $self, "cf::map::wrap";
1704	delete $self->{deny_reset};	2508	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2509	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2510	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2512
1709	$cf::MAP{$self->path} = $self;	2513	$cf::MAP{$self->path} = $self;
		2514	}
1710		2515
1711	$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	]
1712	}	2553	}
1713		2554
1714	=item cf::map::unique_maps	2555	=item cf::map::unique_maps
1715		2556
1716	Returns an arrayref of paths of all shared maps that have	2557	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2558	instantiated unique items. May block.
1718		2559
1719	=cut	2560	=cut
1720		2561
1721	sub unique_maps() {	2562	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2563	[
1723	or return;	2564	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2565	utf8::decode $_;
1729	next if /\.pst$/;	2566	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2568	? ()
1732	push @paths, cf::map::normalise $_;	2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2571	]
1734
1735	\@paths
1736	}	2572	}
1737		2573
1738	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	}
1739		2605
1740	=back	2606	=back
1741		2607
1742	=head3 cf::object	2608	=head3 cf::object
1743		2609
…		…
1747		2613
1748	=over 4	2614	=over 4
1749		2615
1750	=item $ob->inv_recursive	2616	=item $ob->inv_recursive
1751		2617
1752	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.
1753		2620
1754	=cut	2621	=cut
1755		2622
1756	sub inv_recursive_;	2623	sub inv_recursive_;
1757	sub inv_recursive_ {	2624	sub inv_recursive_ {
…		…
1760		2627
1761	sub inv_recursive {	2628	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2629	inv_recursive_ inv $_[0]
1763	}	2630	}
1764		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
1765	package cf;	2660	package cf;
1766		2661
1767	=back	2662	=back
1768		2663
1769	=head3 cf::object::player	2664	=head3 cf::object::player
…		…
1775	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>
1776	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
1777	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1778		2673
1779	=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	};
1780		2689
1781	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2691	# with dialog boxes.
1783	#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
1784	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1786		2695
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2697
1789	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1791	} 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 {
1792	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1794	}	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 (@_);
1795	}	2723	}
1796		2724
1797	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1798		2726
1799	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1812		2740
1813	=item $player_object->enter_link	2741	=item $player_object->enter_link
1814		2742
1815	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}>).
1816		2744
1817	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.
1818	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.
1819		2749
1820	Will never block.	2750	Will never block.
1821		2751
1822	=item $player_object->leave_link ($map, $x, $y)	2752	=item $player_object->leave_link ($map, $x, $y)
1823		2753
…		…
1843	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1844	my ($self) = @_;	2774	my ($self) = @_;
1845		2775
1846	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
1847		2777
		2778	++$self->{_link_recursion};
		2779
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2781
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2783	if $self->map && $self->map->{path} ne "{link}";
1852		2784
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1854	}	2786	}
1855		2787
1856	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
		2790
		2791	return unless $self->contr->active;
1858		2792
1859	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1860		2794
1861	unless ($map) {	2795	unless ($map) {
1862	# restore original map position	2796	# restore original map position
…		…
1873	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1874	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1875		2809
1876	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1879		2813
1880	$map->load;	2814	$map->load;
1881	$map->load_diag;
1882		2815
1883	return unless $self->contr->active;	2816	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2817
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2819	if ($self->enter_map ($map, $x, $y)) {
1888	}	2820	# entering was successful
1889		2821	delete $self->{_link_recursion};
1890	cf::player->attach (	2822	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2823	$self->activate_recursive;
1892	my ($pl) = @_;
1893
1894	# abort map switching before logout
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},	2824	}
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2825
1904	# try to abort aborted map switching on player login :)	2826	}
1905	# should happen only on crashes
1906	if ($pl->ob->{_link_pos}) {
1907	$pl->ob->enter_link;
1908	(async {
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921		2827
1922	=item $player_object->goto ($path, $x, $y)	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1923		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
1924	=cut	2839	=cut
		2840
		2841	our $GOTOGEN;
1925		2842
1926	sub cf::object::player::goto {	2843	sub cf::object::player::goto {
1927	my ($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;
1928		2854
1929	$self->enter_link;	2855	$self->enter_link;
1930		2856
1931	(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
1932	my $map = eval {	2879	my $map = eval {
1933	my $map = cf::map::find $path;	2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1934	$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
1935	$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 $@;
1936	} or	2895	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1940	})->prio (1);	2903	})->prio (1);
1941	}	2904	}
1942		2905
1943	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
1944		2907
…		…
1964	}	2927	}
1965		2928
1966	sub prepare_random_map {	2929	sub prepare_random_map {
1967	my ($exit) = @_;	2930	my ($exit) = @_;
1968		2931
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2932	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2933	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2934	# that depends on the exit object
1974		2935
1975	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2938	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2939	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
1982	}	2945	}
1983		2946
1984	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
1985		2948
1986	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2951	my $meta = "$RANDOMDIR/$md5.meta";
1989		2952
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2955	undef $fh;
1993	aio_rename "$meta~", $meta;	2956	aio_rename "$meta~", $meta;
1994		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
1997	}	2964	}
1998	}	2965	}
1999		2966
2000	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
2002		2969
2003	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
2004		2971
2005	if ($exit->slaying eq "/!") {
2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
2007	# the problem is that $exit might not survive long enough
2008	# so it needs to be done right now, right here
2009	cf::sync_job { prepare_random_map $exit };
2010	}
2011
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;
2015
2016	$self->enter_link;	2972	$self->enter_link;
2017		2973
2018	(async {	2974	(async {
2019	$self->deactivate_recursive; # just to be sure	2975	$Coro::current->{desc} = "enter_exit";
		2976
2020	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
2021	$self->goto ($slaying, $hp, $sp);	3007	$self->goto ($map, $x, $y);
2022		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
2023	1;	3013	1
2024	}) {	3014	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "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. "
2027	. "Please report this to the dungeon master!",	3017	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
2029		3019
2030	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
2031	$self->leave_link;	3021	$self->leave_link;
2032	}	3022	}
2033	})->prio (1);	3023	})->prio (1);
2034	}	3024	}
2035		3025
…		…
2049		3039
2050	utf8::encode $text;	3040	utf8::encode $text;
2051	$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);
2052	}	3042	}
2053		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
2054	=item $client->ext_event ($type, %msg)	3231	=item $client->ext_msg ($type, @msg)
2055		3232
2056	Sends an exti event to the client.	3233	Sends an ext event to the client.
2057		3234
2058	=cut	3235	=cut
2059		3236
2060	sub cf::client::ext_event($$%) {	3237	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	3238	my ($self, $type, @msg) = @_;
2062		3239
		3240	if ($self->extcmd == 2) {
		3241	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3242	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	3243	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	3244	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3245	}
		3246	}
		3247
		3248	=item $client->ext_reply ($msgid, @msg)
		3249
		3250	Sends an ext reply to the client.
		3251
		3252	=cut
		3253
		3254	sub cf::client::ext_reply($$@) {
		3255	my ($self, $id, @msg) = @_;
		3256
		3257	return unless $self->extcmd == 2;
		3258
		3259	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2065	}	3260	}
2066		3261
2067	=item $success = $client->query ($flags, "text", \&cb)	3262	=item $success = $client->query ($flags, "text", \&cb)
2068		3263
2069	Queues a query to the client, calling the given callback with	3264	Queues a query to the client, calling the given callback with
2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3265	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2071	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3266	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		3267
2073	Queries can fail, so check the return code. Or don't, as queries will become	3268	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	3269	become reliable at some point in the future.
2075		3270
2076	=cut	3271	=cut
2077		3272
2078	sub cf::client::query {	3273	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	3274	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	3282	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3283	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		3284
2090	$self->send_packet ($self->{query_queue}[0][0])	3285	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	3286	if @{ $self->{query_queue} } == 1;
		3287
		3288	1
2092	}	3289	}
2093		3290
2094	cf::client->attach (	3291	cf::client->attach (
		3292	on_connect => sub {
		3293	my ($ns) = @_;
		3294
		3295	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3296	},
2095	on_reply => sub {	3297	on_reply => sub {
2096	my ($ns, $msg) = @_;	3298	my ($ns, $msg) = @_;
2097		3299
2098	# this weird shuffling is so that direct followup queries	3300	# this weird shuffling is so that direct followup queries
2099	# get handled first	3301	# get handled first
…		…
2111	} else {	3313	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3314	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3315	}
2114	}	3316	}
2115	},	3317	},
		3318	on_exticmd => sub {
		3319	my ($ns, $buf) = @_;
		3320
		3321	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3322
		3323	if (ref $msg) {
		3324	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3325
		3326	my @reply;
		3327
		3328	if (my $cb = $EXTICMD{$type}) {
		3329	@reply = $cb->($ns, @payload);
		3330	}
		3331
		3332	$ns->ext_reply ($reply, @reply)
		3333	if $reply;
		3334
		3335	} else {
		3336	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3337	}
		3338
		3339	cf::override;
		3340	},
2116	);	3341	);
2117		3342
2118	=item $client->async (\&cb)	3343	=item $client->async (\&cb)
2119		3344
2120	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
…		…
2136		3361
2137	$coro	3362	$coro
2138	}	3363	}
2139		3364
2140	cf::client->attach (	3365	cf::client->attach (
2141	on_destroy => sub {	3366	on_client_destroy => sub {
2142	my ($ns) = @_;	3367	my ($ns) = @_;
2143		3368
2144	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2145	},	3370	},
2146	);	3371	);
…		…
2161	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
2163		3388
2164	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
2165		3390
2166	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3391	$safe->permit_only (Opcode::opset qw(
		3392	:base_core :base_mem :base_orig :base_math :base_loop
		3393	grepstart grepwhile mapstart mapwhile
		3394	sort time
		3395	));
2167		3396
2168	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
2169		3398
2170	=pod	3399	=pod
2171		3400
2172	The following functions and methods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
2173		3402
2174	cf::object contr pay_amount pay_player map	3403	cf::object
		3404	contr pay_amount pay_player map x y force_find force_add destroy
		3405	insert remove name archname title slaying race decrease split
		3406	value
		3407
2175	cf::object::player player	3408	cf::object::player
2176	cf::player peaceful	3409	player
2177	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
2178		3416
2179	=cut	3417	=cut
2180		3418
2181	for (	3419	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	3420	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3421	insert remove inv nrof name archname title slaying race
		3422	decrease split destroy change_exp value msg lore send_msg)],
2183	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
2186	) {	3426	) {
2187	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2190	for @funs;	3429	for @funs;
2191	}	3430	}
2192		3431
…		…
2207		3446
2208	my $qcode = $code;	3447	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
2211		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
2212	local $_;	3454	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;
2214		3455
2215	my $eval =	3456	my $eval =
2216	"do {\n"	3457	"do {\n"
2217	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2218	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
2219	. $code	3460	. $code
2220	. "\n}"	3461	. "\n}"
2221	;	3462	;
2222		3463
		3464	if ($CFG{safe_eval}) {
2223	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
2224	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2225	sub_generation_inc;	3468	sub_generation_inc;
		3469	} else {
		3470	local @cf::_safe_eval_args = values %vars;
		3471	@res = wantarray ? eval eval : scalar eval $eval;
		3472	}
2226		3473
2227	if ($@) {	3474	if ($@) {
2228	warn "$@";	3475	warn "$@",
2229	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
2230	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
2231	}	3478	}
2232		3479
2233	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
2234	}	3481	}
2235		3482
…		…
2249	=cut	3496	=cut
2250		3497
2251	sub register_script_function {	3498	sub register_script_function {
2252	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
2253		3500
2254	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
2255	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
2256	}	3503	}
2257		3504
2258	=back	3505	=back
2259		3506
2260	=cut	3507	=cut
2261
2262	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333		3508
2334	#############################################################################	3509	#############################################################################
2335	# the server's init and main functions	3510	# the server's init and main functions
2336		3511
		3512	our %FACEHASH; # hash => idx, #d# HACK for http server
		3513
		3514	# internal api, not fianlised
		3515	sub add_face {
		3516	my ($name, $type, $data) = @_;
		3517
		3518	my $idx = cf::face::find $name;
		3519
		3520	if ($idx) {
		3521	delete $FACEHASH{cf::face::get_chksum $idx};
		3522	} else {
		3523	$idx = cf::face::alloc $name;
		3524	}
		3525
		3526	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3527
		3528	cf::face::set_type $idx, $type;
		3529	cf::face::set_data $idx, 0, $data, $hash;
		3530	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3531	$FACEHASH{$hash} = $idx;#d#
		3532
		3533	$idx
		3534	}
		3535
2337	sub load_facedata {	3536	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	3537	my ($path) = @_;
2339		3538
		3539	# HACK to clear player env face cache, we need some signal framework
		3540	# for this (global event?)
		3541	%ext::player_env::MUSIC_FACE_CACHE = ();
		3542
		3543	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3544
2340	warn "loading facedata from $path\n";	3545	trace "loading facedata from $path\n";
2341		3546
2342	my $facedata;	3547	my $facedata = decode_storable load_file $path;
2343	0 < aio_load $path, $facedata
2344	or die "$path: $!";
2345
2346	$facedata = Coro::Storable::thaw $facedata;
2347		3548
2348	$facedata->{version} == 2	3549	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3550	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		3551
		3552	cf::cede_to_tick;
		3553
2351	{	3554	{
2352	my $faces = $facedata->{faceinfo};	3555	my $faces = $facedata->{faceinfo};
2353		3556
2354	while (my ($face, $info) = each %$faces) {	3557	for my $face (sort keys %$faces) {
		3558	my $info = $faces->{$face};
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3559	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3560
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3561	cf::face::set_visibility $idx, $info->{visibility};
		3562	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3563	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3564	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2359	Coro::cede;	3565	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3566	$FACEHASH{$info->{hash64}} = $idx;#d#
		3567
		3568	cf::cede_to_tick;
2360	}	3569	}
2361		3570
2362	while (my ($face, $info) = each %$faces) {	3571	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3572	next unless $info->{smooth};
		3573
2364	my $idx = cf::face::find $face	3574	my $idx = cf::face::find $face
2365	or next;	3575	or next;
		3576
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3577	if (my $smooth = cf::face::find $info->{smooth}) {
		3578	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3579	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3580	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3581	error "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3582	}
2371	Coro::cede;	3583
		3584	cf::cede_to_tick;
2372	}	3585	}
2373	}	3586	}
2374		3587
2375	{	3588	{
2376	my $anims = $facedata->{animinfo};	3589	my $anims = $facedata->{animinfo};
2377		3590
2378	while (my ($anim, $info) = each %$anims) {	3591	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3592	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3593	cf::cede_to_tick;
2381	}	3594	}
2382		3595
2383	cf::anim::invalidate_all; # d'oh	3596	cf::anim::invalidate_all; # d'oh
2384	}	3597	}
2385		3598
		3599	{
		3600	my $res = $facedata->{resource};
		3601
		3602	while (my ($name, $info) = each %$res) {
		3603	if (defined (my $type = $info->{type})) {
		3604	# TODO: different hash - must free and use new index, or cache ixface data queue
		3605	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3606
		3607	cf::face::set_type $idx, $type;
		3608	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3609	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3610	$FACEHASH{$info->{hash}} = $idx;#d#
		3611	} else {
		3612	# $RESOURCE{$name} = $info; # unused
		3613	}
		3614
		3615	cf::cede_to_tick;
		3616	}
		3617	}
		3618
		3619	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3620
2386	1	3621	1
2387	}	3622	}
2388		3623
		3624	register_exticmd fx_want => sub {
		3625	my ($ns, $want) = @_;
		3626
		3627	while (my ($k, $v) = each %$want) {
		3628	$ns->fx_want ($k, $v);
		3629	}
		3630	};
		3631
		3632	sub load_resource_file($) {
		3633	my $guard = lock_acquire "load_resource_file";
		3634
		3635	my $status = load_resource_file_ $_[0];
		3636	get_slot 0.1, 100;
		3637	cf::arch::commit_load;
		3638
		3639	$status
		3640	}
		3641
		3642	sub reload_exp_table {
		3643	_reload_exp_table;
		3644
		3645	add_face "res/exp_table" => FT_RSRC,
		3646	JSON::XS->new->utf8->canonical->encode (
		3647	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3648	);
		3649	}
		3650
		3651	sub reload_materials {
		3652	_reload_materials;
		3653	}
		3654
		3655	sub reload_regions {
		3656	# HACK to clear player env face cache, we need some signal framework
		3657	# for this (global event?)
		3658	%ext::player_env::MUSIC_FACE_CACHE = ();
		3659
		3660	load_resource_file "$MAPDIR/regions"
		3661	or die "unable to load regions file\n";
		3662
		3663	for (cf::region::list) {
		3664	$_->{match} = qr/$_->{match}/
		3665	if exists $_->{match};
		3666	}
		3667	}
		3668
		3669	sub reload_facedata {
		3670	load_facedata "$DATADIR/facedata"
		3671	or die "unable to load facedata\n";
		3672	}
		3673
		3674	sub reload_archetypes {
		3675	load_resource_file "$DATADIR/archetypes"
		3676	or die "unable to load archetypes\n";
		3677
		3678	add_face "res/skill_info" => FT_RSRC,
		3679	JSON::XS->new->utf8->canonical->encode (
		3680	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3681	);
		3682	add_face "res/spell_paths" => FT_RSRC,
		3683	JSON::XS->new->utf8->canonical->encode (
		3684	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3685	);
		3686	}
		3687
		3688	sub reload_treasures {
		3689	load_resource_file "$DATADIR/treasures"
		3690	or die "unable to load treasurelists\n";
		3691	}
		3692
		3693	sub reload_sound {
		3694	trace "loading sound config from $DATADIR/sound\n";
		3695
		3696	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3697
		3698	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3699	my $sound = $soundconf->{compat}[$_]
		3700	or next;
		3701
		3702	my $face = cf::face::find "sound/$sound->[1]";
		3703	cf::sound::set $sound->[0] => $face;
		3704	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3705	}
		3706
		3707	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3708	my $face = cf::face::find "sound/$v";
		3709	cf::sound::set $k => $face;
		3710	}
		3711	}
		3712
2389	sub reload_resources {	3713	sub reload_resources {
2390	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3714	trace "reloading resource files...\n";
2391	or die "unable to load regions file\n";#d#	3715
		3716	reload_materials;
2392	load_facedata	3717	reload_facedata;
2393	or die "unable to load facedata\n";#d#	3718	reload_exp_table;
2394	}	3719	reload_sound;
2395		3720	reload_archetypes;
2396	sub init {
2397	reload_resources;	3721	reload_regions;
2398	}	3722	reload_treasures;
2399		3723
2400	sub cfg_load {	3724	trace "finished reloading resource files\n";
2401	open my $fh, "<:utf8", cf::confdir . "/config"	3725	}
2402	or return;
2403		3726
2404	local $/;	3727	sub reload_config {
2405	*CFG = YAML::Syck::Load <$fh>;	3728	trace "reloading config file...\n";
2406		3729
		3730	my $config = load_file "$CONFDIR/config";
		3731	utf8::decode $config;
		3732	*CFG = decode_yaml $config;
		3733
2407	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3734	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2408		3735
2409	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3736	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2410	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3737	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2411		3738
2412	if (exists $CFG{mlockall}) {	3739	if (exists $CFG{mlockall}) {
…		…
2416	};	3743	};
2417	warn $@ if $@;	3744	warn $@ if $@;
2418	}	3745	}
2419	}	3746	}
2420		3747
		3748	sub pidfile() {
		3749	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3750	or die "$PIDFILE: $!";
		3751	flock $fh, &Fcntl::LOCK_EX
		3752	or die "$PIDFILE: flock: $!";
		3753	$fh
		3754	}
		3755
		3756	# make sure only one server instance is running at any one time
		3757	sub atomic {
		3758	my $fh = pidfile;
		3759
		3760	my $pid = <$fh>;
		3761	kill 9, $pid if $pid > 0;
		3762
		3763	seek $fh, 0, 0;
		3764	print $fh $$;
		3765	}
		3766
		3767	sub main_loop {
		3768	trace "EV::loop starting\n";
		3769	if (1) {
		3770	EV::loop;
		3771	}
		3772	trace "EV::loop returned\n";
		3773	goto &main_loop unless $REALLY_UNLOOP;
		3774	}
		3775
2421	sub main {	3776	sub main {
		3777	cf::init_globals; # initialise logging
		3778
		3779	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3780	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3781	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3782	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3783
		3784	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3785
2422	# we must not ever block the main coroutine	3786	# we must not ever block the main coroutine
2423	local $Coro::idle = sub {	3787	$Coro::idle = sub {
2424	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3788	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2425	(async {	3789	(async {
2426	Event::one_event;	3790	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3791	EV::loop EV::LOOP_ONESHOT;
2427	})->prio (Coro::PRIO_MAX);	3792	})->prio (Coro::PRIO_MAX);
2428	};	3793	};
2429		3794
2430	cfg_load;	3795	evthread_start IO::AIO::poll_fileno;
		3796
		3797	cf::sync_job {
		3798	cf::incloader::init ();
		3799
		3800	cf::init_anim;
		3801	cf::init_attackmess;
		3802	cf::init_dynamic;
		3803
		3804	cf::load_settings;
		3805
		3806	reload_resources;
		3807	reload_config;
2431	db_init;	3808	db_init;
		3809
		3810	cf::init_uuid;
		3811	cf::init_signals;
		3812	cf::init_skills;
		3813
		3814	cf::init_beforeplay;
		3815
		3816	atomic;
		3817
2432	load_extensions;	3818	load_extensions;
2433		3819
2434	$TICK_WATCHER->start;	3820	utime time, time, $RUNTIMEFILE;
2435	Event::loop;	3821
		3822	# no (long-running) fork's whatsoever before this point(!)
		3823	use POSIX ();
		3824	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3825
		3826	cf::_post_init 0;
		3827	};
		3828
		3829	cf::object::thawer::errors_are_fatal 0;
		3830	info "parse errors in files are no longer fatal from this point on.\n";
		3831
		3832	AE::postpone {
		3833	undef &main; # free gobs of memory :)
		3834	};
		3835
		3836	goto &main_loop;
2436	}	3837	}
2437		3838
2438	#############################################################################	3839	#############################################################################
2439	# initialisation and cleanup	3840	# initialisation and cleanup
2440		3841
2441	# install some emergency cleanup handlers	3842	# install some emergency cleanup handlers
2442	BEGIN {	3843	BEGIN {
		3844	our %SIGWATCHER = ();
2443	for my $signal (qw(INT HUP TERM)) {	3845	for my $signal (qw(INT HUP TERM)) {
2444	Event->signal (	3846	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2445	reentrant => 0,
2446	data => WF_AUTOCANCEL,
2447	signal => $signal,
2448	prio => 0,
2449	cb => sub {
2450	cf::cleanup "SIG$signal";	3847	cf::cleanup "SIG$signal";
2451	},
2452	);	3848	};
		3849	}
		3850	}
		3851
		3852	sub write_runtime_sync {
		3853	my $t0 = AE::time;
		3854
		3855	# first touch the runtime file to show we are still running:
		3856	# the fsync below can take a very very long time.
		3857
		3858	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3859
		3860	my $guard = cf::lock_acquire "write_runtime";
		3861
		3862	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3863	or return;
		3864
		3865	my $value = $cf::RUNTIME + 90 + 10;
		3866	# 10 is the runtime save interval, for a monotonic clock
		3867	# 60 allows for the watchdog to kill the server.
		3868
		3869	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3870	and return;
		3871
		3872	# always fsync - this file is important
		3873	aio_fsync $fh
		3874	and return;
		3875
		3876	# touch it again to show we are up-to-date
		3877	aio_utime $fh, undef, undef;
		3878
		3879	close $fh
		3880	or return;
		3881
		3882	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3883	and return;
		3884
		3885	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3886
2453	}	3887	1
		3888	}
		3889
		3890	our $uuid_lock;
		3891	our $uuid_skip;
		3892
		3893	sub write_uuid_sync($) {
		3894	$uuid_skip ||= $_[0];
		3895
		3896	return if $uuid_lock;
		3897	local $uuid_lock = 1;
		3898
		3899	my $uuid = "$LOCALDIR/uuid";
		3900
		3901	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3902	or return;
		3903
		3904	my $value = uuid_seq uuid_cur;
		3905
		3906	unless ($value) {
		3907	info "cowardly refusing to write zero uuid value!\n";
		3908	return;
		3909	}
		3910
		3911	my $value = uuid_str $value + $uuid_skip;
		3912	$uuid_skip = 0;
		3913
		3914	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3915	and return;
		3916
		3917	# always fsync - this file is important
		3918	aio_fsync $fh
		3919	and return;
		3920
		3921	close $fh
		3922	or return;
		3923
		3924	aio_rename "$uuid~", $uuid
		3925	and return;
		3926
		3927	trace "uuid file written ($value).\n";
		3928
		3929	1
		3930
		3931	}
		3932
		3933	sub write_uuid($$) {
		3934	my ($skip, $sync) = @_;
		3935
		3936	$sync ? write_uuid_sync $skip
		3937	: async { write_uuid_sync $skip };
2454	}	3938	}
2455		3939
2456	sub emergency_save() {	3940	sub emergency_save() {
2457	my $freeze_guard = cf::freeze_mainloop;	3941	my $freeze_guard = cf::freeze_mainloop;
2458		3942
2459	warn "enter emergency perl save\n";	3943	info "emergency_perl_save: enter\n";
		3944
		3945	# this is a trade-off: we want to be very quick here, so
		3946	# save all maps without fsync, and later call a global sync
		3947	# (which in turn might be very very slow)
		3948	local $USE_FSYNC = 0;
2460		3949
2461	cf::sync_job {	3950	cf::sync_job {
		3951	cf::write_runtime_sync; # external watchdog should not bark
		3952
2462	# use a peculiar iteration method to avoid tripping on perl	3953	# use a peculiar iteration method to avoid tripping on perl
2463	# refcount bugs in for. also avoids problems with players	3954	# refcount bugs in for. also avoids problems with players
2464	# and maps saved/destroyed asynchronously.	3955	# and maps saved/destroyed asynchronously.
2465	warn "begin emergency player save\n";	3956	info "emergency_perl_save: begin player save\n";
2466	for my $login (keys %cf::PLAYER) {	3957	for my $login (keys %cf::PLAYER) {
2467	my $pl = $cf::PLAYER{$login} or next;	3958	my $pl = $cf::PLAYER{$login} or next;
2468	$pl->valid or next;	3959	$pl->valid or next;
		3960	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2469	$pl->save;	3961	$pl->save;
2470	}	3962	}
2471	warn "end emergency player save\n";	3963	info "emergency_perl_save: end player save\n";
2472		3964
2473	warn "begin emergency map save\n";	3965	cf::write_runtime_sync; # external watchdog should not bark
		3966
		3967	info "emergency_perl_save: begin map save\n";
2474	for my $path (keys %cf::MAP) {	3968	for my $path (keys %cf::MAP) {
2475	my $map = $cf::MAP{$path} or next;	3969	my $map = $cf::MAP{$path} or next;
2476	$map->valid or next;	3970	$map->valid or next;
2477	$map->save;	3971	$map->save;
2478	}	3972	}
2479	warn "end emergency map save\n";	3973	info "emergency_perl_save: end map save\n";
2480		3974
2481	warn "begin emergency database checkpoint\n";	3975	cf::write_runtime_sync; # external watchdog should not bark
		3976
		3977	info "emergency_perl_save: begin database checkpoint\n";
2482	BDB::db_env_txn_checkpoint $DB_ENV;	3978	BDB::db_env_txn_checkpoint $DB_ENV;
2483	warn "end emergency database checkpoint\n";	3979	info "emergency_perl_save: end database checkpoint\n";
		3980
		3981	info "emergency_perl_save: begin write uuid\n";
		3982	write_uuid_sync 1;
		3983	info "emergency_perl_save: end write uuid\n";
		3984
		3985	cf::write_runtime_sync; # external watchdog should not bark
		3986
		3987	trace "emergency_perl_save: syncing database to disk";
		3988	BDB::db_env_txn_checkpoint $DB_ENV;
		3989
		3990	info "emergency_perl_save: starting sync\n";
		3991	IO::AIO::aio_sync sub {
		3992	info "emergency_perl_save: finished sync\n";
		3993	};
		3994
		3995	cf::write_runtime_sync; # external watchdog should not bark
		3996
		3997	trace "emergency_perl_save: flushing outstanding aio requests";
		3998	while (IO::AIO::nreqs || BDB::nreqs) {
		3999	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4000	}
		4001
		4002	cf::write_runtime_sync; # external watchdog should not bark
2484	};	4003	};
2485		4004
2486	warn "leave emergency perl save\n";	4005	info "emergency_perl_save: leave\n";
2487	}	4006	}
2488		4007
2489	sub post_cleanup {	4008	sub post_cleanup {
2490	my ($make_core) = @_;	4009	my ($make_core) = @_;
2491		4010
		4011	IO::AIO::flush;
		4012
2492	warn Carp::longmess "post_cleanup backtrace"	4013	error Carp::longmess "post_cleanup backtrace"
2493	if $make_core;	4014	if $make_core;
2494	}
2495		4015
		4016	my $fh = pidfile;
		4017	unlink $PIDFILE if <$fh> == $$;
		4018	}
		4019
		4020	# a safer delete_package, copied from Symbol
		4021	sub clear_package($) {
		4022	my $pkg = shift;
		4023
		4024	# expand to full symbol table name if needed
		4025	unless ($pkg =~ /^main::.*::$/) {
		4026	$pkg = "main$pkg" if $pkg =~ /^::/;
		4027	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4028	$pkg .= '::' unless $pkg =~ /::$/;
		4029	}
		4030
		4031	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4032	my $stem_symtab = *{$stem}{HASH};
		4033
		4034	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4035	or return;
		4036
		4037	# clear all symbols
		4038	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4039	for my $name (keys %$leaf_symtab) {
		4040	_gv_clear *{"$pkg$name"};
		4041	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4042	}
		4043	}
		4044
2496	sub reload() {	4045	sub do_reload_perl() {
2497	# can/must only be called in main	4046	# can/must only be called in main
2498	if ($Coro::current != $Coro::main) {	4047	unless (in_main) {
2499	warn "can only reload from main coroutine";	4048	error "can only reload from main coroutine";
2500	return;	4049	return;
2501	}	4050	}
2502		4051
2503	warn "reloading...";	4052	return if $RELOAD++;
2504		4053
2505	warn "entering sync_job";	4054	my $t1 = AE::time;
2506		4055
		4056	while ($RELOAD) {
		4057	cf::get_slot 0.1, -1, "reload_perl";
		4058	info "perl_reload: reloading...";
		4059
		4060	trace "perl_reload: entering sync_job";
		4061
2507	cf::sync_job {	4062	cf::sync_job {
2508	cf::write_runtime; # external watchdog should not bark
2509	cf::emergency_save;	4063	#cf::emergency_save;
2510	cf::write_runtime; # external watchdog should not bark
2511		4064
2512	warn "syncing database to disk";
2513	BDB::db_env_txn_checkpoint $DB_ENV;
2514
2515	# if anything goes wrong in here, we should simply crash as we already saved
2516
2517	warn "cancelling all WF_AUTOCANCEL watchers";
2518	for (Event::all_watchers) {
2519	$_->cancel if $_->data & WF_AUTOCANCEL;
2520	}
2521
2522	warn "flushing outstanding aio requests";
2523	for (;;) {
2524	BDB::flush;
2525	IO::AIO::flush;
2526	Coro::cede;
2527	last unless IO::AIO::nreqs || BDB::nreqs;
2528	warn "iterate...";
2529	}
2530
2531	++$RELOAD;
2532
2533	warn "cancelling all extension coros";	4065	trace "perl_reload: cancelling all extension coros";
2534	$_->cancel for values %EXT_CORO;	4066	$_->cancel for values %EXT_CORO;
2535	%EXT_CORO = ();	4067	%EXT_CORO = ();
2536		4068
2537	warn "removing commands";	4069	trace "perl_reload: removing commands";
2538	%COMMAND = ();	4070	%COMMAND = ();
2539		4071
2540	warn "removing ext commands";	4072	trace "perl_reload: removing ext/exti commands";
2541	%EXTCMD = ();	4073	%EXTCMD = ();
		4074	%EXTICMD = ();
2542		4075
2543	warn "unloading/nuking all extensions";	4076	trace "perl_reload: unloading/nuking all extensions";
2544	for my $pkg (@EXTS) {	4077	for my $pkg (@EXTS) {
2545	warn "... unloading $pkg";	4078	trace "... unloading $pkg";
2546		4079
2547	if (my $cb = $pkg->can ("unload")) {	4080	if (my $cb = $pkg->can ("unload")) {
2548	eval {	4081	eval {
2549	$cb->($pkg);	4082	$cb->($pkg);
2550	1	4083	1
2551	} or warn "$pkg unloaded, but with errors: $@";	4084	} or error "$pkg unloaded, but with errors: $@";
		4085	}
		4086
		4087	trace "... clearing $pkg";
		4088	clear_package $pkg;
2552	}	4089	}
2553		4090
2554	warn "... nuking $pkg";
2555	Symbol::delete_package $pkg;
2556	}
2557
2558	warn "unloading all perl modules loaded from $LIBDIR";	4091	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2559	while (my ($k, $v) = each %INC) {	4092	while (my ($k, $v) = each %INC) {
2560	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4093	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2561		4094
2562	warn "... unloading $k";	4095	trace "... unloading $k";
2563	delete $INC{$k};	4096	delete $INC{$k};
2564		4097
2565	$k =~ s/\.pm$//;	4098	$k =~ s/\.pm$//;
2566	$k =~ s/\//::/g;	4099	$k =~ s/\//::/g;
2567		4100
2568	if (my $cb = $k->can ("unload_module")) {	4101	if (my $cb = $k->can ("unload_module")) {
2569	$cb->();	4102	$cb->();
		4103	}
		4104
		4105	clear_package $k;
2570	}	4106	}
2571		4107
2572	Symbol::delete_package $k;
2573	}
2574
2575	warn "getting rid of safe::, as good as possible";	4108	trace "perl_reload: getting rid of safe::, as good as possible";
2576	Symbol::delete_package "safe::$_"	4109	clear_package "safe::$_"
2577	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4110	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2578		4111
2579	warn "unloading cf.pm \"a bit\"";	4112	trace "perl_reload: unloading cf.pm \"a bit\"";
2580	delete $INC{"cf.pm"};	4113	delete $INC{"cf.pm"};
		4114	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2581		4115
2582	# don't, removes xs symbols, too,	4116	# don't, removes xs symbols, too,
2583	# and global variables created in xs	4117	# and global variables created in xs
2584	#Symbol::delete_package __PACKAGE__;	4118	#clear_package __PACKAGE__;
2585		4119
2586	warn "unload completed, starting to reload now";	4120	info "perl_reload: unload completed, starting to reload now";
2587		4121
2588	warn "reloading cf.pm";	4122	trace "perl_reload: reloading cf.pm";
2589	require cf;	4123	require cf;
2590	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4124	cf::_connect_to_perl_1;
2591		4125
2592	warn "loading config and database again";	4126	trace "perl_reload: loading config and database again";
2593	cf::cfg_load;	4127	cf::reload_config;
2594		4128
2595	warn "loading extensions";	4129	trace "perl_reload: loading extensions";
2596	cf::load_extensions;	4130	cf::load_extensions;
2597		4131
		4132	if ($REATTACH_ON_RELOAD) {
2598	warn "reattaching attachments to objects/players";	4133	trace "perl_reload: reattaching attachments to objects/players";
2599	_global_reattach; # objects, sockets	4134	_global_reattach; # objects, sockets
2600	warn "reattaching attachments to maps";	4135	trace "perl_reload: reattaching attachments to maps";
2601	reattach $_ for values %MAP;	4136	reattach $_ for values %MAP;
2602	warn "reattaching attachments to players";	4137	trace "perl_reload: reattaching attachments to players";
2603	reattach $_ for values %PLAYER;	4138	reattach $_ for values %PLAYER;
		4139	}
2604		4140
2605	warn "loading reloadable resources";	4141	cf::_post_init 1;
2606	reload_resources;
2607		4142
2608	warn "leaving sync_job";	4143	trace "perl_reload: leaving sync_job";
2609		4144
2610	1	4145	1
2611	} or do {	4146	} or do {
2612	warn $@;	4147	error $@;
2613	warn "error while reloading, exiting.";	4148	cf::cleanup "perl_reload: error, exiting.";
2614	exit 1;	4149	};
		4150
		4151	--$RELOAD;
		4152	}
		4153
		4154	$t1 = AE::time - $t1;
		4155	info "perl_reload: completed in ${t1}s\n";
		4156	};
		4157
		4158	our $RELOAD_WATCHER; # used only during reload
		4159
		4160	sub reload_perl() {
		4161	# doing reload synchronously and two reloads happen back-to-back,
		4162	# coro crashes during coro_state_free->destroy here.
		4163
		4164	$RELOAD_WATCHER ||= cf::async {
		4165	Coro::AIO::aio_wait cache_extensions;
		4166
		4167	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4168	do_reload_perl;
		4169	undef $RELOAD_WATCHER;
		4170	};
2615	};	4171	};
2616		4172	}
2617	warn "reloaded";
2618	};
2619
2620	our $RELOAD_WATCHER; # used only during reload
2621		4173
2622	register_command "reload" => sub {	4174	register_command "reload" => sub {
2623	my ($who, $arg) = @_;	4175	my ($who, $arg) = @_;
2624		4176
2625	if ($who->flag (FLAG_WIZ)) {	4177	if ($who->flag (FLAG_WIZ)) {
2626	$who->message ("reloading server.");	4178	$who->message ("reloading server.");
2627		4179	async {
2628	# doing reload synchronously and two reloads happen back-to-back,	4180	$Coro::current->{desc} = "perl_reload";
2629	# coro crashes during coro_state_free->destroy here.
2630
2631	$RELOAD_WATCHER ||= Event->timer (
2632	reentrant => 0,
2633	after => 0,
2634	data => WF_AUTOCANCEL,
2635	cb => sub {
2636	reload;	4181	reload_perl;
2637	undef $RELOAD_WATCHER;
2638	},
2639	);	4182	};
2640	}	4183	}
2641	};	4184	};
2642		4185
2643	unshift @INC, $LIBDIR;	4186	#############################################################################
2644		4187
2645	my $bug_warning = 0;	4188	my $bug_warning = 0;
2646		4189
2647	our @WAIT_FOR_TICK;
2648	our @WAIT_FOR_TICK_BEGIN;
2649
2650	sub wait_for_tick {	4190	sub wait_for_tick() {
2651	return unless $TICK_WATCHER->is_active;	4191	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2652	my $signal = new Coro::Signal;
2653	push @WAIT_FOR_TICK, $signal;
2654	$signal->wait;
2655	}
2656		4192
		4193	$WAIT_FOR_TICK->wait;
		4194	}
		4195
2657	sub wait_for_tick_begin {	4196	sub wait_for_tick_begin() {
2658	return unless $TICK_WATCHER->is_active;	4197	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4198
2659	my $signal = new Coro::Signal;	4199	my $signal = new Coro::Signal;
2660	push @WAIT_FOR_TICK_BEGIN, $signal;	4200	push @WAIT_FOR_TICK_BEGIN, $signal;
2661	$signal->wait;	4201	$signal->wait;
2662	}	4202	}
2663		4203
2664	$TICK_WATCHER = Event->timer (	4204	sub tick {
2665	reentrant => 0,
2666	parked => 1,
2667	prio => 0,
2668	at => $NEXT_TICK || $TICK,
2669	data => WF_AUTOCANCEL,
2670	cb => sub {
2671	if ($Coro::current != $Coro::main) {	4205	if ($Coro::current != $Coro::main) {
2672	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4206	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2673	unless ++$bug_warning > 10;	4207	unless ++$bug_warning > 10;
2674	return;	4208	return;
2675	}	4209	}
2676		4210
2677	$NOW = Event::time;	4211	cf::one_tick; # one server iteration
2678		4212
2679	cf::server_tick; # one server iteration	4213	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2680	$RUNTIME += $TICK;
2681	$NEXT_TICK += $TICK;
2682		4214
2683	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4215	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2684	$NEXT_RUNTIME_WRITE = $NOW + 10;	4216	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2685	Coro::async_pool {	4217	Coro::async_pool {
		4218	$Coro::current->{desc} = "runtime saver";
2686	write_runtime	4219	write_runtime_sync
2687	or warn "ERROR: unable to write runtime file: $!";	4220	or error "ERROR: unable to write runtime file: $!";
2688	};
2689	}	4221	};
		4222	}
2690		4223
2691	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4224	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2692	$sig->send;	4225	$sig->send;
2693	}
2694	while (my $sig = shift @WAIT_FOR_TICK) {
2695	$sig->send;
2696	}
2697
2698	# my $AFTER = Event::time;
2699	# warn $AFTER - $NOW;#d#
2700
2701	# if we are delayed by four ticks or more, skip them all
2702	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2703
2704	$TICK_WATCHER->at ($NEXT_TICK);
2705	$TICK_WATCHER->start;
2706	},	4226	}
2707	);	4227	$WAIT_FOR_TICK->broadcast;
		4228
		4229	$LOAD = ($NOW - $TICK_START) / $TICK;
		4230	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4231
		4232	if (0) {
		4233	if ($NEXT_TICK) {
		4234	my $jitter = $TICK_START - $NEXT_TICK;
		4235	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4236	debug "jitter $JITTER\n";#d#
		4237	}
		4238	}
		4239	}
2708		4240
2709	{	4241	{
2710	BDB::max_poll_time $TICK * 0.1;	4242	# configure BDB
2711	$BDB_POLL_WATCHER = Event->io (	4243
2712	reentrant => 0,
2713	fd => BDB::poll_fileno,
2714	poll => 'r',
2715	prio => 0,
2716	data => WF_AUTOCANCEL,
2717	cb => \&BDB::poll_cb,
2718	);
2719	BDB::min_parallel 8;	4244	BDB::min_parallel 16;
2720		4245	BDB::max_poll_reqs $TICK * 0.1;
2721	BDB::set_sync_prepare {	4246	#$AnyEvent::BDB::WATCHER->priority (1);
2722	my $status;
2723	my $current = $Coro::current;
2724	(
2725	sub {
2726	$status = $!;
2727	$current->ready; undef $current;
2728	},
2729	sub {
2730	Coro::schedule while defined $current;
2731	$! = $status;
2732	},
2733	)
2734	};
2735		4247
2736	unless ($DB_ENV) {	4248	unless ($DB_ENV) {
2737	$DB_ENV = BDB::db_env_create;	4249	$DB_ENV = BDB::db_env_create;
		4250	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4251	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4252	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4253	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4254	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2738		4255
2739	cf::sync_job {	4256	cf::sync_job {
2740	eval {	4257	eval {
2741	BDB::db_env_open	4258	BDB::db_env_open
2742	$DB_ENV,	4259	$DB_ENV,
2743	$BDB_ENV_DIR,	4260	$BDBDIR,
2744	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4261	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2745	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4262	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2746	0666;	4263	0666;
2747		4264
2748	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4265	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2749
2750	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2751	$DB_ENV->set_lk_detect;
2752	};	4266	};
2753		4267
2754	cf::cleanup "db_env_open(db): $@" if $@;	4268	cf::cleanup "db_env_open(db): $@" if $@;
2755	};	4269	};
2756	}	4270	}
		4271
		4272	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4273	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4274	};
		4275	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4276	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4277	};
		4278	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4279	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4280	};
2757	}	4281	}
2758		4282
2759	{	4283	{
		4284	# configure IO::AIO
		4285
2760	IO::AIO::min_parallel 8;	4286	IO::AIO::min_parallel 8;
2761
2762	undef $Coro::AIO::WATCHER;
2763	IO::AIO::max_poll_time $TICK * 0.1;	4287	IO::AIO::max_poll_time $TICK * 0.1;
2764	$AIO_POLL_WATCHER = Event->io (	4288	undef $AnyEvent::AIO::WATCHER;
2765	reentrant => 0,
2766	data => WF_AUTOCANCEL,
2767	fd => IO::AIO::poll_fileno,
2768	poll => 'r',
2769	prio => 6,
2770	cb => \&IO::AIO::poll_cb,
2771	);
2772	}	4289	}
		4290
		4291	our $_log_backtrace;
		4292	our $_log_backtrace_last;
		4293
		4294	sub _log_backtrace {
		4295	my ($msg, @addr) = @_;
		4296
		4297	$msg =~ s/\n$//;
		4298
		4299	if ($_log_backtrace_last eq $msg) {
		4300	LOG llevInfo, "[ABT] $msg\n";
		4301	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4302	# limit the # of concurrent backtraces
		4303	} elsif ($_log_backtrace < 2) {
		4304	$_log_backtrace_last = $msg;
		4305	++$_log_backtrace;
		4306	my $perl_bt = Carp::longmess $msg;
		4307	async {
		4308	$Coro::current->{desc} = "abt $msg";
		4309
		4310	my @bt = fork_call {
		4311	@addr = map { sprintf "%x", $_ } @addr;
		4312	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4313	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4314	or die "addr2line: $!";
		4315
		4316	my @funcs;
		4317	my @res = <$fh>;
		4318	chomp for @res;
		4319	while (@res) {
		4320	my ($func, $line) = splice @res, 0, 2, ();
		4321	push @funcs, "[$func] $line";
		4322	}
		4323
		4324	@funcs
		4325	};
		4326
		4327	LOG llevInfo, "[ABT] $perl_bt\n";
		4328	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4329	LOG llevInfo, "[ABT] $_\n" for @bt;
		4330	--$_log_backtrace;
		4331	};
		4332	} else {
		4333	LOG llevInfo, "[ABT] $msg\n";
		4334	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4335	}
		4336	}
		4337
		4338	# load additional modules
		4339	require "cf/$_.pm" for @EXTRA_MODULES;
		4340	cf::_connect_to_perl_2;
2773		4341
2774	END { cf::emergency_save }	4342	END { cf::emergency_save }
2775		4343
2776	1	4344	1
2777		4345

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