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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.213 by root, Tue Feb 13 20:01:04 2007 UTC vs.
Revision 1.591 by root, Tue Nov 6 23:33:15 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.5 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
20	use BDB ();	58	use BDB ();
21	use Data::Dumper;	59	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	60	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	61	use YAML::XS ();
		62	use IO::AIO ();
26	use Time::HiRes;	63	use Time::HiRes;
27	use Compress::LZF;	64	use Compress::LZF;
		65	use Digest::MD5 ();
28		66
		67	AnyEvent::detect;
		68
		69	# configure various modules to our taste
		70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
		72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		73
		74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	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
30		79
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	80	# strictly for debugging
		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		82
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		84
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	85	our @ORIG_INC;
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		86
40	our %COMMAND = ();	87	our %COMMAND = ();
41	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
42		89
43	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	93	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	94	our %EXT_MAP = (); # pluggable maps
47		95
		96	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	97	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
50		100
51	our $TICK = MAX_TIME * 1e-6;	101	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	102
53	our $AIO_POLL_WATCHER;	103	our $DATADIR = datadir;
54	our $WRITE_RUNTIME_WATCHER;	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(!)
		126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	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;
56	our $NOW;	143	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		144
59	our $BDB_POLL_WATCHER;	145	our (%PLAYER, %PLAYER_LOADING); # all users
60	our $DB_ENV;	146	our (%MAP, %MAP_LOADING ); # all maps
61
62	our %CFG;
63
64	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;
66
67	our %PLAYER; # all users
68	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	147	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		148
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
		164
79	binmode STDOUT;	165	binmode STDOUT;
80	binmode STDERR;	166	binmode STDERR;
81		167
82	# read virtual server time, if available	168	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	170	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
87	}	173	}
88		174
89	mkdir cf::localdir;	175	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	176
91	mkdir cf::localdir . "/" . cf::tmpdir;	177	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		179
96	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
97		181
98	sub cf::map::normalise;	182	sub cf::map::normalise;
99		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
100	#############################################################################	188	#############################################################################
101		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
102	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
103		202
104	=over 4	203	=over 4
105		204
106	=item $cf::UPTIME	205	=item $cf::UPTIME
107		206
108	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.
109		223
110	=item $cf::RUNTIME	224	=item $cf::RUNTIME
111		225
112	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
113	every server tick.	227	every server tick.
114		228
115	=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
116		232
117	The perl library directory, where extensions and cf-specific modules can	233	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		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
120	=item $cf::NOW	244	=item $cf::LOAD
121		245
122	The time of the last (current) server tick.	246	The raw value load value from the last tick.
123
124	=item $cf::TICK
125
126	The interval between server ticks, in seconds.
127		247
128	=item %cf::CFG	248	=item %cf::CFG
129		249
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	251	from wherever your confdir points to.
132		252
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	253	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		254
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	256	returns directly I<after> the tick processing (and consequently, can only wake one thread
137	processing has been done. Call C<< ->wait >> on them to maximise the	257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
139		287
140	=back	288	=back
141		289
142	=cut	290	=cut
143		291
144	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
145	*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 {
146	my $msg = join "", @_;	299	my $msg = join "", @_;
147	utf8::encode $msg;
148		300
149	$msg .= "\n"	301	$msg .= "\n"
150	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
151		303
		304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		305
152	LOG llevError, $msg;	306	LOG llevWarn, $msg;
153	};	307	};
154	}	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	};
155		322
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		330
163	# 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
164	# within the Safe compartment.	332	# within the Safe compartment.
165	for my $pkg (qw(	333	for my $pkg (qw(
166	cf::global cf::attachable	334	cf::global cf::attachable
167	cf::object cf::object::player	335	cf::object cf::object::player
168	cf::client cf::player	336	cf::client cf::player
169	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
170	cf::map cf::party cf::region	339	cf::party cf::region
171	)) {	340	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	342	}
175		343
176	$Event::DIED = sub {	344	$EV::DIED = sub {
177	warn "error in event callback: @_";	345	warn "error in event callback: $@";
178	};	346	};
		347
		348	#############################################################################
		349
		350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
179		354
180	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
181		356
182	=over 4	357	=over 4
183		358
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	378	$d
204	} || "[unable to dump $_[0]: '$@']";	379	} || "[unable to dump $_[0]: '$@']";
205	}	380	}
206		381
207	use JSON::Syck (); # TODO# replace by JSON::PC once working	382	=item $scalar = cf::load_file $path
208		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($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
209	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
210		435
211	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
212		437
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
221		439
222	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
223		441
224	=cut	442	=cut
225		443
226	sub to_json($) {	444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	445
228	JSON::Syck::Dump $_[0]	446	sub encode_json($) { $json_coder->encode ($_[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	}
229	}	509	}
230		510
231	=item cf::lock_wait $string	511	=item cf::lock_wait $string
232		512
233	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
234		514
235	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
236		516
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
240	returned.	520	returned.
241		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
242	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
243	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
244		527
245	=cut	528	=item $locked = cf::lock_active $string
246		529
247	our %LOCK;	530	Return true if the lock is currently active, i.e. somebody has locked it.
		531
		532	=cut
		533
		534	our $LOCKS = new Coro::SemaphoreSet;
248		535
249	sub lock_wait($) {	536	sub lock_wait($) {
250	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	538	}
258		539
259	sub lock_acquire($) {	540	sub lock_acquire($) {
260	my ($key) = @_;	541	$LOCKS->guard ($_[0])
		542	}
261		543
262	# wait, to be sure we are not locked	544	sub lock_active($) {
263	lock_wait $key;	545	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	546	}
272		547
273	sub freeze_mainloop {	548	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
275		550
276	my $guard = Coro::guard {	551	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	552	}
278	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
279	};	621	}
280	$WRITE_RUNTIME_WATCHER->stop;	622	};
281	$TICK_WATCHER->stop;	623
282	$guard	624	sub get_slot($;$$) {
		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	$sig->wait;
283	}	637	}
284		638
285	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
286		640
287	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
292		646
293	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
294		648
295	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
296		650
297	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
298	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
300		655
301	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
302	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
303	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
304	fast or be very important.	659	fast or be very important.
…		…
306	=cut	661	=cut
307		662
308	sub sync_job(&) {	663	sub sync_job(&) {
309	my ($job) = @_;	664	my ($job) = @_;
310		665
311	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
312	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
314		671
315	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
316	# (but this is cancel-safe)	673
317	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
318		675
319	my $busy = 1;	676	my $busy = 1;
320	my @res;	677	my @res;
321		678
322	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
323	@res = eval { $job->() };	681	@res = eval { $job->() };
324	warn $@ if $@;	682	error $@ if $@;
325	undef $busy;	683	undef $busy;
326	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
327		685
328	while ($busy) {	686	while ($busy) {
329	Coro::cede or Event::one_event;	687	if (Coro::nready) {
		688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
330	}	691	}
		692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
331		697
332	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
333	} else {	699	} else {
334	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
335		701
…		…
355	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
356		722
357	$coro	723	$coro
358	}	724	}
359		725
360	sub write_runtime {	726	=item fork_call { }, @args
361	my $runtime = cf::localdir . "/runtime";
362		727
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	728	Executes the given code block with the given arguments in a seperate
364	or return;	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.
365		732
366	my $value = $cf::RUNTIME + 90 + 10;	733	=cut
367	# 10 is the runtime save interval, for a monotonic clock
368	# 60 allows for the watchdog to kill the server.
369		734
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	735	sub post_fork {
371	and return;	736	reset_signals;
		737	}
372		738
373	# always fsync - this file is important	739	sub fork_call(&@) {
374	aio_fsync $fh	740	my ($cb, @args) = @_;
375	and return;
376		741
377	close $fh	742	# we seemingly have to make a local copy of the whole thing,
378	or return;	743	# otherwise perl prematurely frees the stuff :/
		744	# TODO: investigate and fix (likely this will be rather laborious)
379		745
380	aio_rename "$runtime~", $runtime	746	my @res = Coro::Util::fork_eval {
381	and return;	747	cf::post_fork;
		748	&$cb
		749	} @args;
382		750
		751	wantarray ? @res : $res[-1]
		752	}
		753
		754	sub objinfo {
383	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"
		918	}
		919
		920	=item cf::datalog type => key => value, ...
		921
		922	Log a datalog packet of the given type with the given key-value pairs.
		923
		924	=cut
		925
		926	sub datalog($@) {
		927	my ($type, %kv) = @_;
		928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	929	}
385		930
386	=back	931	=back
387		932
388	=cut	933	=cut
389		934
390	#############################################################################	935	#############################################################################
391		936
392	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
393		938
394	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
395	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")
396	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
397		942
398	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>
399	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
400	crossfire+).	945	Deliantra).
401		946
402	=over 4	947	=over 4
403		948
404	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
405		950
…		…
449	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
450		995
451	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
453		998
454	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
455	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.
456		1001
457	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
458		1003
459	=over 4	1004	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
569		1114
570	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		1119
575	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
577		1122
578	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
583		1128
584	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
585	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
586		1131
587	} elsif (ref $type) {	1132	} elsif (ref $type) {
588	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
589		1134
590	} else {	1135	} else {
591	shift @arg;	1136	shift @arg;
592	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
593	}	1138	}
594	}	1139	}
595	}	1140	}
596		1141
597	sub _object_attach {	1142	sub _object_attach {
…		…
607	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
608	}	1153	}
609		1154
610	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
611	} else {	1156	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
613	}	1158	}
614		1159
615	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
616	}	1161	}
617		1162
…		…
619	if (ref $_[0]) {	1164	if (ref $_[0]) {
620	_object_attach @_;	1165	_object_attach @_;
621	} else {	1166	} else {
622	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
623	}	1168	}
		1169	_recalc_want;
624	};	1170	};
625		1171
626	# all those should be optimised	1172	# all those should be optimised
627	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
632	reattach ($obj);	1178	reattach ($obj);
633	} else {	1179	} else {
634	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
635	}	1181	}
		1182	_recalc_want;
636	};	1183	};
637		1184
638	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
640		1187
…		…
655	";	1202	";
656	die if $@;	1203	die if $@;
657	}	1204	}
658		1205
659	our $override;	1206	our $override;
660	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?
661		1208
662	sub override {	1209	sub override {
663	$override = 1;	1210	$override = 1;
664	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
665	}	1212	}
666		1213
667	sub do_invoke {	1214	sub do_invoke {
668	my $event = shift;	1215	my $event = shift;
669	my $callbacks = shift;	1216	my $callbacks = shift;
670		1217
671	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
672		1219
673	local $override;	1220	local $override;
674		1221
675	for (@$callbacks) {	1222	for (@$callbacks) {
676	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
677		1224
678	if ($@) {	1225	if ($@) {
679	warn "$@";
680	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
681	override;	1227	override;
682	}	1228	}
683		1229
684	return 1 if $override;	1230	return 1 if $override;
685	}	1231	}
686		1232
687	0	1233	0
688	}	1234	}
689		1235
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1237
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1239
694	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
695		1241
696	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
697	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
698	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1245
700	=back	1246	=back
701		1247
702	=cut	1248	=cut
703		1249
704	#############################################################################	1250	#############################################################################
705	# 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, $ob2
		1293	}
706		1294
707	sub reattach {	1295	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1297	my ($obj) = @_;
710		1298
		1299	# no longer needed after getting rid of delete_package?
711	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
712		1301
713	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
714		1303
715	@$registry = ();	1304	@$registry = ();
716		1305
…		…
721	for (@$attach) {	1310	for (@$attach) {
722	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
723	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
724	}	1313	}
725	} else {	1314	} else {
726	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
727	}	1316	}
728	}	1317	}
729	}	1318	}
730		1319
731	cf::attachable->attach (	1320	cf::attachable->attach (
732	prio => -1000000,	1321	prio => -1000000,
733	on_instantiate => sub {	1322	on_instantiate => sub {
734	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
735		1324
736	$data = from_json $data;	1325	$data = decode_json $data;
737		1326
738	for (@$data) {	1327	for (@$data) {
739	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
740		1329
741	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1346	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
759		1348
760	sync_job {	1349	sync_job {
761	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
764		1355
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	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	}
769	close $fh;	1363	aio_close $fh;
770		1364
771	if (@$objs) {	1365	if (@$objs) {
772	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) {
773	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
776	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	}
777	close $fh;	1374	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
779	}	1376	}
780	} else {	1377	} else {
781	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
782	}	1379	}
783		1380
784	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1385	} else {
786	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
787	}	1387	}
788	} else {	1388	} else {
789	aio_unlink $filename;	1389	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
791	}	1391	}
792
793	#d##TODO# nuke non .map-files if exist
794	if ($filename =~ s/\.map$//) {
795	aio_unlink $filename;
796	aio_unlink "$filename.pst";
797	}
798	}	1392	};
799	}	1393	}
800		1394
801	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
802	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
803		1397
…		…
808		1402
809	sub object_thawer_load {	1403	sub object_thawer_load {
810	my ($filename) = @_;	1404	my ($filename) = @_;
811		1405
812	my ($data, $av);	1406	my ($data, $av);
813
814	#d#TODO remove .map if file does not exist
815	aio_stat $filename and $filename =~ s/\.map$//;
816		1407
817	(aio_load $filename, $data) >= 0	1408	(aio_load $filename, $data) >= 0
818	or return;	1409	or return;
819		1410
820	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
821	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
822	or return;	1413	or return;
		1414
823	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
824	}	1417	}
825		1418
		1419	utf8::decode (my $decname = $filename);
826	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
827	$filename, length $data, scalar @{$av || []};#d#	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
828	return ($data, $av);	1424	($data, $av)
829	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
830		1432
831	#############################################################################	1433	#############################################################################
832	# command handling &c	1434	# command handling &c
833		1435
834	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
847	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
848	}	1450	}
849		1451
850	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
851		1453
852	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.
853		1459
854	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
855	called.	1461	called.
856		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
857	=cut	1474	=cut
858		1475
859	sub register_extcmd {	1476	sub register_extcmd {
860	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
861		1478
862	$EXTCMD{$name} = $cb;	1479	$EXTCMD{$name} = $cb;
863	}	1480	}
864		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
		1489
865	cf::player->attach (	1490	cf::player->attach (
866	on_command => sub {	1491	on_unknown_command => sub {
867	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
868		1493
869	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
870	or return;	1495	or return;
871		1496
…		…
876	cf::override;	1501	cf::override;
877	},	1502	},
878	on_extcmd => sub {	1503	on_extcmd => sub {
879	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
880		1505
881	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
882		1507
883	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
885	if (my %reply = $cb->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
886	$pl->ext_reply ($msg->{msgid}, %reply);
887	}
888	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
889	} else {	1520	} else {
890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
891	}	1522	}
892		1523
893	cf::override;	1524	cf::override;
894	},	1525	},
895	);	1526	);
896		1527
		1528	# "readahead" all extensions
897	sub load_extension {	1529	sub cache_extensions {
898	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
899		1531
900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
901	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
902	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
903	$pkg =~ s/[^[:word:]]/_/g;
904	$pkg = "ext::$pkg";
905
906	warn "... loading '$path' into '$pkg'\n";
907
908	open my $fh, "<:utf8", $path
909	or die "$path: $!";
910
911	my $source =
912	"package $pkg; use strict; use utf8;\n"
913	. "#line 1 \"$path\"\n{\n"
914	. (do { local $/; <$fh> })
915	. "\n};\n1";
916
917	unless (eval $source) {
918	my $msg = $@ ? "$path: $@\n"
919	: "extension disabled.\n";
920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
921	warn $@;
922	warn "mandatory extension failed to load, exiting.\n";
923	exit 1;
924	}	1535	}
925	die $@;
926	}	1536	};
927		1537
928	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;
929	}	1550	}
930		1551
931	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
932	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
933	next unless -r $ext;	1561	next unless -r $path;
934	eval {	1562
935	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 $active;
		1634	}
936	1	1635	}
937	} or warn "$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	}
938	}	1648	};
939	}	1649	}
940		1650
941	#############################################################################	1651	#############################################################################
942		1652
		1653	=back
		1654
943	=head2 CORE EXTENSIONS	1655	=head2 CORE EXTENSIONS
944		1656
945	Functions and methods that extend core crossfire objects.	1657	Functions and methods that extend core deliantra objects.
946		1658
947	=cut	1659	=cut
948		1660
949	package cf::player;	1661	package cf::player;
950		1662
…		…
952		1664
953	=head3 cf::player	1665	=head3 cf::player
954		1666
955	=over 4	1667	=over 4
956		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
957	=item cf::player::find $login	1683	=item cf::player::find $login
958		1684
959	Returns the given player object, loading it if necessary (might block).	1685	Returns the given player object, loading it if necessary (might block).
960		1686
961	=cut	1687	=cut
962		1688
963	sub playerdir($) {	1689	sub playerdir($) {
964	cf::localdir	1690	"$PLAYERDIR/"
965	. "/"
966	. cf::playerdir
967	. "/"
968	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1691	. (ref $_[0] ? $_[0]->ob->name : $_[0])
969	}	1692	}
970		1693
971	sub path($) {	1694	sub path($) {
972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1695	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973		1696
974	(playerdir $login) . "/$login.pl"	1697	(playerdir $login) . "/playerdata"
975	}	1698	}
976		1699
977	sub find_active($) {	1700	sub find_active($) {
978	$cf::PLAYER{$_[0]}	1701	$cf::PLAYER{$_[0]}
979	and $cf::PLAYER{$_[0]}->active	1702	and $cf::PLAYER{$_[0]}->active
…		…
982		1705
983	sub exists($) {	1706	sub exists($) {
984	my ($login) = @_;	1707	my ($login) = @_;
985		1708
986	$cf::PLAYER{$login}	1709	$cf::PLAYER{$login}
987	or cf::sync_job { !aio_stat path $login }	1710	or !aio_stat path $login
988	}	1711	}
989		1712
990	sub find($) {	1713	sub find($) {
991	return $cf::PLAYER{$_[0]} || do {	1714	return $cf::PLAYER{$_[0]} || do {
992	my $login = $_[0];	1715	my $login = $_[0];
993		1716
994	my $guard = cf::lock_acquire "user_find:$login";	1717	my $guard = cf::lock_acquire "user_find:$login";
995		1718
996	$cf::PLAYER{$_[0]} || do {	1719	$cf::PLAYER{$_[0]} || do {
997	my $pl = load_pl path $login	1720	# rename old playerfiles to new ones
		1721	#TODO: remove when no longer required
		1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1725	aio_unlink +(playerdir $login) . "/$login.pl";
		1726
		1727	my $f = new_from_file cf::object::thawer path $login
998	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;
999	$cf::PLAYER{$login} = $pl	1735	$cf::PLAYER{$login} = $pl
1000	}	1736	}
1001	}	1737	}
1002	}	1738	}
		1739
		1740	cf::player->attach (
		1741	on_load => sub {
		1742	my ($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	);
1003		1752
1004	sub save($) {	1753	sub save($) {
1005	my ($pl) = @_;	1754	my ($pl) = @_;
1006		1755
1007	return if $pl->{deny_save};	1756	return if $pl->{deny_save};
…		…
1012	return if $pl->{deny_save};	1761	return if $pl->{deny_save};
1013		1762
1014	aio_mkdir playerdir $pl, 0770;	1763	aio_mkdir playerdir $pl, 0770;
1015	$pl->{last_save} = $cf::RUNTIME;	1764	$pl->{last_save} = $cf::RUNTIME;
1016		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
1017	$pl->save_pl ($path);	1771	$pl->save_pl ($path);
1018	Coro::cede;	1772	cf::cede_to_tick;
1019	}	1773	}
1020		1774
1021	sub new($) {	1775	sub new($) {
1022	my ($login) = @_;	1776	my ($login) = @_;
1023		1777
…		…
1029	$cf::PLAYER{$login} = $self;	1783	$cf::PLAYER{$login} = $self;
1030		1784
1031	$self	1785	$self
1032	}	1786	}
1033		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
1034	=item $pl->quit_character	1798	=item $pl->quit_character
1035		1799
1036	Nukes the player without looking back. If logged in, the connection will	1800	Nukes the player without looking back. If logged in, the connection will
1037	be destroyed. May block for a long time.	1801	be destroyed. May block for a long time.
1038		1802
1039	=cut	1803	=cut
1040		1804
1041	sub quit_character {	1805	sub quit_character {
1042	my ($pl) = @_;	1806	my ($pl) = @_;
1043		1807
		1808	my $name = $pl->ob->name;
		1809
1044	$pl->{deny_save} = 1;	1810	$pl->{deny_save} = 1;
1045	$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
1046		1812
1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1048	$pl->deactivate;	1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
1050	$pl->ns->destroy if $pl->ns;	1820	$pl->ns->destroy if $pl->ns;
1051		1821
1052	my $path = playerdir $pl;	1822	my $path = playerdir $pl;
1053	my $temp = "$path~$cf::RUNTIME~deleting~";	1823	my $temp = "$path~$cf::RUNTIME~deleting~";
1054	aio_rename $path, $temp;	1824	aio_rename $path, $temp;
1055	delete $cf::PLAYER{$pl->ob->name};	1825	delete $cf::PLAYER{$pl->ob->name};
1056	$pl->destroy;	1826	$pl->destroy;
		1827
		1828	my $prefix = qr<^~\Q$name\E/>;
		1829
		1830	# nuke player maps
		1831	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1832
1057	IO::AIO::aio_rmtree $temp;	1833	IO::AIO::aio_rmtree $temp;
		1834	}
		1835
		1836	=item $pl->kick
		1837
		1838	Kicks a player out of the game. This destroys the connection.
		1839
		1840	=cut
		1841
		1842	sub kick {
		1843	my ($pl, $kicker) = @_;
		1844
		1845	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1846	$pl->killer ("kicked");
		1847	$pl->ns->destroy;
1058	}	1848	}
1059		1849
1060	=item cf::player::list_logins	1850	=item cf::player::list_logins
1061		1851
1062	Returns am arrayref of all valid playernames in the system, can take a	1852	Returns am arrayref of all valid playernames in the system, can take a
1063	while and may block, so not sync_job-capable, ever.	1853	while and may block, so not sync_job-capable, ever.
1064		1854
1065	=cut	1855	=cut
1066		1856
1067	sub list_logins {	1857	sub list_logins {
1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1858	my $dirs = aio_readdir $PLAYERDIR
1069	or return [];	1859	or return [];
1070		1860
1071	my @logins;	1861	my @logins;
1072		1862
1073	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") {
1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1075	aio_read $fh, 0, 512, my $buf, 0 or next;	1870	aio_read $fh, 0, 512, my $buf, 0 or next;
1076	$buf !~ /^password -------------$/m or next; # official not-valid tag	1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
1077		1873
1078	utf8::decode $login;	1874	utf8::decode $login;
1079	push @logins, $login;	1875	push @logins, $login;
1080	}	1876	}
1081		1877
1082	\@logins	1878	\@logins
1083	}	1879	}
1084		1880
1085	=item $player->maps	1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
1086		1884
1087	Returns an arrayref of map paths that are private for this	1885	Returns an arrayref of map paths that are private for this
1088	player. May block.	1886	player. May block.
1089		1887
1090	=cut	1888	=cut
…		…
1108	}	1906	}
1109		1907
1110	\@paths	1908	\@paths
1111	}	1909	}
1112		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1915	=item $player->ext_reply ($msgid, @msg)
1114		1916
1115	Sends an ext reply to the player.	1917	Sends an ext reply to the player.
1116		1918
1117	=cut	1919	=cut
1118		1920
1119	sub ext_reply($$$%) {	1921	sub ext_reply($$@) {
1120	my ($self, $id, %msg) = @_;	1922	my ($self, $id, @msg) = @_;
1121		1923
1122	$msg{msgid} = $id;	1924	$self->ns->ext_reply ($id, @msg)
1123
1124	$self->send ("ext " . cf::to_json \%msg);
1125	}	1925	}
1126		1926
1127	package cf;	1927	=item $player->ext_msg ($type, @msg)
		1928
		1929	Sends an ext event to the client.
		1930
		1931	=cut
		1932
		1933	sub ext_msg($$@) {
		1934	my ($self, $type, @msg) = @_;
		1935
		1936	$self->ns->ext_msg ($type, @msg);
		1937	}
		1938
		1939	=head3 cf::region
		1940
		1941	=over 4
		1942
		1943	=cut
		1944
		1945	package cf::region;
		1946
		1947	=item cf::region::find_by_path $path
		1948
		1949	Tries to decuce the likely region for a map knowing only its path.
		1950
		1951	=cut
		1952
		1953	sub find_by_path($) {
		1954	my ($path) = @_;
		1955
		1956	$path =~ s/^~[^\/]*//; # skip ~login
		1957
		1958	my ($match, $specificity);
		1959
		1960	for my $region (list) {
		1961	if ($region->{match} && $path =~ $region->{match}) {
		1962	($match, $specificity) = ($region, $region->specificity)
		1963	if $region->specificity > $specificity;
		1964	}
		1965	}
		1966
		1967	$match
		1968	}
1128		1969
1129	=back	1970	=back
1130
1131		1971
1132	=head3 cf::map	1972	=head3 cf::map
1133		1973
1134	=over 4	1974	=over 4
1135		1975
…		…
1147	our $MAX_RESET = 3600;	1987	our $MAX_RESET = 3600;
1148	our $DEFAULT_RESET = 3000;	1988	our $DEFAULT_RESET = 3000;
1149		1989
1150	sub generate_random_map {	1990	sub generate_random_map {
1151	my ($self, $rmp) = @_;	1991	my ($self, $rmp) = @_;
1152	# mit "rum" bekleckern, nicht	1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
1153	$self->_create_random_map (	1995	$self->_create_random_map ($rmp);
1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1157	$rmp->{exit_on_final_map},
1158	$rmp->{xsize}, $rmp->{ysize},
1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1162	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1164	(cf::region::find $rmp->{region}), $rmp->{custom}
1165	)
1166	}	1996	}
1167		1997
1168	=item cf::map->register ($regex, $prio)	1998	=item cf::map->register ($regex, $prio)
1169		1999
1170	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
…		…
1175		2005
1176	sub register {	2006	sub register {
1177	my (undef, $regex, $prio) = @_;	2007	my (undef, $regex, $prio) = @_;
1178	my $pkg = caller;	2008	my $pkg = caller;
1179		2009
1180	no strict;
1181	push @{"$pkg\::ISA"}, __PACKAGE__;	2010	push @{"$pkg\::ISA"}, __PACKAGE__;
1182		2011
1183	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1184	}	2013	}
1185		2014
1186	# also paths starting with '/'	2015	# also paths starting with '/'
1187	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1188		2017
1189	sub thawer_merge {	2018	sub thawer_merge {
1190	my ($self, $merge) = @_;	2019	my ($self, $merge) = @_;
1191		2020
1192	# we have to keep some variables in memory intact	2021	# we have to keep some variables in memory intact
1193	local $self->{path};	2022	local $self->{path};
1194	local $self->{load_path};	2023	local $self->{load_path};
1195	local $self->{deny_save};
1196	local $self->{deny_reset};
1197		2024
1198	$self->SUPER::thawer_merge ($merge);	2025	$self->SUPER::thawer_merge ($merge);
1199	}	2026	}
1200		2027
1201	sub normalise {	2028	sub normalise {
1202	my ($path, $base) = @_;	2029	my ($path, $base) = @_;
1203		2030
1204	$path = "$path"; # make sure its a string	2031	$path = "$path"; # make sure it's a string
1205		2032
1206	$path =~ s/\.map$//;	2033	$path =~ s/\.map$//;
1207		2034
1208	# map plan:	2035	# map plan:
1209	#	2036	#
…		…
1224	$base =~ s{[^/]+/?$}{};	2051	$base =~ s{[^/]+/?$}{};
1225	$path = "$base/$path";	2052	$path = "$base/$path";
1226	}	2053	}
1227		2054
1228	for ($path) {	2055	for ($path) {
1229	redo if s{//}{/};
1230	redo if s{/\.?/}{/};	2056	redo if s{/\.?/}{/};
1231	redo if s{/[^/]+/\.\./}{/};	2057	redo if s{/[^/]+/\.\./}{/};
1232	}	2058	}
1233		2059
1234	$path	2060	$path
…		…
1248	$self->init; # pass $1 etc.	2074	$self->init; # pass $1 etc.
1249	return $self;	2075	return $self;
1250	}	2076	}
1251	}	2077	}
1252		2078
1253	Carp::carp "unable to resolve path '$path' (base '$base').";	2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
1254	()	2080	()
1255	}	2081	}
1256		2082
		2083	# may re-bless or do other evil things
1257	sub init {	2084	sub init {
1258	my ($self) = @_;	2085	my ($self) = @_;
1259		2086
1260	$self	2087	$self
1261	}	2088	}
…		…
1273		2100
1274	# the original (read-only) location	2101	# the original (read-only) location
1275	sub load_path {	2102	sub load_path {
1276	my ($self) = @_;	2103	my ($self) = @_;
1277		2104
1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2105	"$MAPDIR/$self->{path}.map"
1279	}	2106	}
1280		2107
1281	# the temporary/swap location	2108	# the temporary/swap location
1282	sub save_path {	2109	sub save_path {
1283	my ($self) = @_;	2110	my ($self) = @_;
1284		2111
1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2113	"$TMPDIR/$path.map"
1287	}	2114	}
1288		2115
1289	# the unique path, undef == no special unique path	2116	# the unique path, undef == no special unique path
1290	sub uniq_path {	2117	sub uniq_path {
1291	my ($self) = @_;	2118	my ($self) = @_;
1292		2119
1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2121	"$UNIQUEDIR/$path"
1295	}	2122	}
1296		2123
1297	# and all this just because we cannot iterate over	2124	sub decay_objects {
1298	# all maps in C++...
1299	sub change_all_map_light {
1300	my ($change) = @_;	2125	my ($self) = @_;
1301		2126
1302	$_->change_map_light ($change)	2127	return if $self->{deny_reset};
1303	for grep $_->outdoor, values %cf::MAP;	2128
		2129	$self->do_decay_objects;
1304	}	2130	}
1305		2131
1306	sub unlink_save {	2132	sub unlink_save {
1307	my ($self) = @_;	2133	my ($self) = @_;
1308		2134
1309	utf8::encode (my $save = $self->save_path);	2135	utf8::encode (my $save = $self->save_path);
1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	2136	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	2137	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313	#d#TODO remove .map and also nuke
1314	$save =~ s/\.map// or return;#d#
1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317	}	2138	}
1318		2139
1319	sub load_header_from($) {	2140	sub load_header_from($) {
1320	my ($self, $path) = @_;	2141	my ($self, $path) = @_;
1321		2142
1322	utf8::encode $path;	2143	utf8::encode $path;
1323	#aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1324	# or return;
1325
1326	$self->_load_header ($path)
1327	or return;	2145	or return;
1328		2146
		2147	$self->_load_header ($f)
		2148	or return;
		2149
		2150	local $MAP_LOADING{$self->{path}} = $self;
		2151	$f->resolve_delayed_derefs;
		2152
1329	$self->{load_path} = $path;	2153	$self->{load_path} = $path;
1330		2154
1331	1	2155	1
1332	}	2156	}
1333		2157
		2158	# used to laod the header of an original map
1334	sub load_header_orig {	2159	sub load_header_orig {
1335	my ($self) = @_;	2160	my ($self) = @_;
1336		2161
1337	$self->load_header_from ($self->load_path)	2162	$self->load_header_from ($self->load_path)
1338	}	2163	}
1339		2164
		2165	# used to laod the header of an instantiated map
1340	sub load_header_temp {	2166	sub load_header_temp {
1341	my ($self) = @_;	2167	my ($self) = @_;
1342		2168
1343	$self->load_header_from ($self->save_path)	2169	$self->load_header_from ($self->save_path)
1344	}	2170	}
1345		2171
		2172	# called after loading the header from an instantiated map
1346	sub prepare_temp {	2173	sub prepare_temp {
1347	my ($self) = @_;	2174	my ($self) = @_;
1348		2175
1349	$self->last_access ((delete $self->{last_access})	2176	$self->last_access ((delete $self->{last_access})
1350	|| $cf::RUNTIME); #d#	2177	|| $cf::RUNTIME); #d#
1351	# safety	2178	# safety
1352	$self->{instantiate_time} = $cf::RUNTIME	2179	$self->{instantiate_time} = $cf::RUNTIME
1353	if $self->{instantiate_time} > $cf::RUNTIME;	2180	if $self->{instantiate_time} > $cf::RUNTIME;
1354	}	2181	}
1355		2182
		2183	# called after loading the header from an original map
1356	sub prepare_orig {	2184	sub prepare_orig {
1357	my ($self) = @_;	2185	my ($self) = @_;
1358		2186
1359	$self->{load_original} = 1;	2187	$self->{load_original} = 1;
1360	$self->{instantiate_time} = $cf::RUNTIME;	2188	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1371	$self->load_header_orig	2199	$self->load_header_orig
1372	or return;	2200	or return;
1373	$self->prepare_orig;	2201	$self->prepare_orig;
1374	}	2202	}
1375		2203
		2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
		2206
		2207	$self->default_region (cf::region::find_by_path $self->{path})
		2208	unless $self->default_region;
		2209
1376	1	2210	1
1377	}	2211	}
1378		2212
1379	sub find;	2213	sub find;
1380	sub find {	2214	sub find {
1381	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1382		2216
		2217	cf::cede_to_tick;
		2218
1383	$path = normalise $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1384		2220
		2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1385	cf::lock_wait "map_find:$path";	2222	my $guard2 = cf::lock_acquire "map_find:$path";
1386		2223
1387	$cf::MAP{$path} || do {	2224	$cf::MAP{$path} || do {
1388	my $guard = cf::lock_acquire "map_find:$path";
1389	my $map = new_from_path cf::map $path	2225	my $map = new_from_path cf::map $path
1390	or return;	2226	or return;
1391		2227
1392	$map->{last_save} = $cf::RUNTIME;	2228	$map->{last_save} = $cf::RUNTIME;
1393		2229
1394	$map->load_header	2230	$map->load_header
1395	or return;	2231	or return;
1396		2232
1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1398	# doing this can freeze the server in a sync job, obviously	2234	# doing this can freeze the server in a sync job, obviously
1399	#$cf::WAIT_FOR_TICK->wait;	2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1400	$map->reset;	2238	$map->reset;
1401	undef $guard;
1402	return find $path;	2239	return find $path;
1403	}	2240	}
1404		2241
1405	$cf::MAP{$path} = $map	2242	$cf::MAP{$path} = $map
1406	}	2243	}
1407	}	2244	}
1408		2245
1409	sub pre_load { }	2246	sub pre_load { }
1410	sub post_load { }	2247	#sub post_load { } # XS
1411		2248
1412	sub load {	2249	sub load {
1413	my ($self) = @_;	2250	my ($self) = @_;
1414		2251
1415	local $self->{deny_reset} = 1; # loading can take a long time	2252	local $self->{deny_reset} = 1; # loading can take a long time
1416		2253
1417	my $path = $self->{path};	2254	my $path = $self->{path};
		2255
		2256	{
1418	my $guard = cf::lock_acquire "map_load:$path";	2257	my $guard = cf::lock_acquire "map_data:$path";
1419		2258
1420	return if $self->in_memory != cf::MAP_SWAPPED;	2259	return unless $self->valid;
		2260	return unless $self->state == cf::MAP_SWAPPED;
1421		2261
1422	$self->in_memory (cf::MAP_LOADING);
1423
1424	$self->alloc;	2262	$self->alloc;
1425		2263
1426	$self->pre_load;	2264	$self->pre_load;
		2265	cf::cede_to_tick;
1427		2266
1428	$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)
1429	or return;	2271	or return;
1430		2272
1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1432	if delete $self->{load_original};	2274	if delete $self->{load_original};
1433		2275
1434	if (my $uniq = $self->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1435	utf8::encode $uniq;	2277	utf8::encode $uniq;
1436	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1437	$self->clear_unique_items;	2280	$self->clear_unique_items;
1438	$self->_load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1439	}	2285	}
1440	}
1441		2286
1442	Coro::cede;	2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
1443		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1444	# now do the right thing for maps	2296	# now do the right thing for maps
1445	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1446
1447	unless ($self->{deny_activate}) {
1448	$self->decay_objects;
1449	$self->fix_auto_apply;
1450	$self->update_buttons;
1451	Coro::cede;
1452	$self->set_darkness_map;
1453	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1454	unless $self->difficulty;	2299	unless $self->difficulty;
1455	Coro::cede;	2300	cf::cede_to_tick;
1456	$self->activate;	2301
		2302	unless ($self->{deny_activate}) {
		2303	$self->decay_objects;
		2304	$self->fix_auto_apply;
		2305	$self->update_buttons;
		2306	cf::cede_to_tick;
		2307	#$self->activate; # no longer activate maps automatically
		2308	}
		2309
		2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
1457	}	2312	}
1458		2313
1459	$self->post_load;	2314	$self->post_load;
1460		2315
1461	$self->in_memory (cf::MAP_IN_MEMORY);	2316	1
1462	}	2317	}
1463		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
1464	sub customise_for {	2322	sub customise_for {
1465	my ($self, $ob) = @_;	2323	my ($self, $ob) = @_;
1466		2324
1467	return find "~" . $ob->name . "/" . $self->{path}	2325	return find "~" . $ob->name . "/" . $self->{path}
1468	if $self->per_player;	2326	if $self->per_player;
1469		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
1470	$self	2331	$self
1471	}
1472
1473	# find and load all maps in the 3x3 area around a map
1474	sub load_diag {
1475	my ($map) = @_;
1476
1477	my @diag; # diagonal neighbours
1478
1479	for (0 .. 3) {
1480	my $neigh = $map->tile_path ($_)
1481	or next;
1482	$neigh = find $neigh, $map
1483	or next;
1484	$neigh->load;
1485
1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1488	}
1489
1490	for (@diag) {
1491	my $neigh = find @$_
1492	or next;
1493	$neigh->load;
1494	}
1495	}	2332	}
1496		2333
1497	sub find_sync {	2334	sub find_sync {
1498	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1499		2336
1500	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
1501	}	2342	}
1502		2343
1503	sub do_load_sync {	2344	sub do_load_sync {
1504	my ($map) = @_;	2345	my ($map) = @_;
1505		2346
1506	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;
1507	}	2352	}
1508		2353
1509	our %MAP_PREFETCH;	2354	our %MAP_PREFETCH;
1510	our $MAP_PREFETCHER = undef;	2355	our $MAP_PREFETCHER = undef;
1511		2356
1512	sub find_async {	2357	sub find_async {
1513	my ($path, $origin) = @_;	2358	my ($path, $origin, $load) = @_;
1514		2359
1515	$path = normalise $path, $origin && $origin->{path};	2360	$path = normalise $path, $origin;
1516		2361
1517	if (my $map = $cf::MAP{$path}) {	2362	if (my $map = $cf::MAP{$path}) {
1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2363	return $map if !$load || $map->linkable;
1519	}	2364	}
1520		2365
1521	undef $MAP_PREFETCH{$path};	2366	$MAP_PREFETCH{$path} |= $load;
		2367
1522	$MAP_PREFETCHER ||= cf::async {	2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
1523	while (%MAP_PREFETCH) {	2371	while (%MAP_PREFETCH) {
1524	for my $path (keys %MAP_PREFETCH) {	2372	while (my ($k, $v) = each %MAP_PREFETCH) {
1525	my $map = find $path	2373	if (my $map = find $k) {
1526	or next;
1527	$map->load;	2374	$map->load if $v;
		2375	}
1528		2376
1529	delete $MAP_PREFETCH{$path};	2377	delete $MAP_PREFETCH{$k};
1530	}	2378	}
1531	}	2379	}
1532	undef $MAP_PREFETCHER;	2380	undef $MAP_PREFETCHER;
1533	};	2381	};
1534	$MAP_PREFETCHER->prio (6);	2382	$MAP_PREFETCHER->prio (6);
1535		2383
1536	()	2384	()
1537	}	2385	}
1538		2386
		2387	# common code, used by both ->save and ->swapout
1539	sub save {	2388	sub _save {
1540	my ($self) = @_;	2389	my ($self) = @_;
1541
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
1543		2390
1544	$self->{last_save} = $cf::RUNTIME;	2391	$self->{last_save} = $cf::RUNTIME;
1545		2392
1546	return unless $self->dirty;	2393	return unless $self->dirty;
1547		2394
…		…
1553	return if $self->{deny_save};	2400	return if $self->{deny_save};
1554		2401
1555	local $self->{last_access} = $self->last_access;#d#	2402	local $self->{last_access} = $self->last_access;#d#
1556		2403
1557	cf::async {	2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
1558	$_->contr->save for $self->players;	2406	$_->contr->save for $self->players;
1559	};	2407	};
		2408
		2409	cf::get_slot 0.02;
1560		2410
1561	if ($uniq) {	2411	if ($uniq) {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1564	} else {	2414	} else {
1565	$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);
1566	}	2416	}
1567	}	2417	}
1568		2418
		2419	sub save {
		2420	my ($self) = @_;
		2421
		2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2423
		2424	$self->_save;
		2425	}
		2426
1569	sub swap_out {	2427	sub swap_out {
1570	my ($self) = @_;	2428	my ($self) = @_;
1571		2429
1572	# save first because save cedes
1573	$self->save;
1574
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1577	return if $self->players;	2434	return if $self->players;
1578	return if $self->in_memory != cf::MAP_IN_MEMORY;
1579	return if $self->{deny_save};
1580		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
1581	$self->clear;	2445	$self->clear;
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	}	2446	}
1584		2447
1585	sub reset_at {	2448	sub reset_at {
1586	my ($self) = @_;	2449	my ($self) = @_;
1587		2450
1588	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1590	return 1e99 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1591		2453
1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593	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;
1594		2456
…		…
1605	my ($self) = @_;	2467	my ($self) = @_;
1606		2468
1607	my $lock = cf::lock_acquire "map_data:$self->{path}";	2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2470
1609	return if $self->players;	2471	return if $self->players;
1610	return if $self->isa ("ext::map_per_player");#d#
1611		2472
1612	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
1613		2474
1614	$self->in_memory (cf::MAP_SWAPPED);	2475	$self->state (cf::MAP_SWAPPED);
1615		2476
1616	# need to save uniques path	2477	# need to save uniques path
1617	unless ($self->{deny_save}) {	2478	unless ($self->{deny_save}) {
1618	my $uniq = $self->uniq_path; utf8::encode $uniq;	2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
1619		2480
…		…
1621	if $uniq;	2482	if $uniq;
1622	}	2483	}
1623		2484
1624	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1625		2486
		2487	$self->deactivate;
		2488	$_->clear_links_to ($self) for values %cf::MAP;
1626	$self->clear;	2489	$self->clear;
1627
1628	$_->clear_links_to ($self) for values %cf::MAP;
1629		2490
1630	$self->unlink_save;	2491	$self->unlink_save;
1631	$self->destroy;	2492	$self->destroy;
1632	}	2493	}
1633		2494
1634	my $nuke_counter = "aaaa";	2495	my $nuke_counter = "aaaa";
1635		2496
1636	sub nuke {	2497	sub nuke {
1637	my ($self) = @_;	2498	my ($self) = @_;
1638		2499
		2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2502
1639	delete $cf::MAP{$self->path};	2503	delete $cf::MAP{$self->path};
1640		2504
1641	$self->unlink_save;	2505	$self->unlink_save;
1642		2506
1643	bless $self, "cf::map";	2507	bless $self, "cf::map::wrap";
1644	delete $self->{deny_reset};	2508	delete $self->{deny_reset};
1645	$self->{deny_save} = 1;	2509	$self->{deny_save} = 1;
1646	$self->reset_timeout (1);	2510	$self->reset_timeout (1);
1647	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648		2512
1649	$cf::MAP{$self->path} = $self;	2513	$cf::MAP{$self->path} = $self;
		2514	}
1650		2515
1651	$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	]
1652	}	2553	}
1653		2554
1654	=item cf::map::unique_maps	2555	=item cf::map::unique_maps
1655		2556
1656	Returns an arrayref of paths of all shared maps that have	2557	Returns an arrayref of paths of all shared maps that have
1657	instantiated unique items. May block.	2558	instantiated unique items. May block.
1658		2559
1659	=cut	2560	=cut
1660		2561
1661	sub unique_maps() {	2562	sub unique_maps() {
1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2563	[
1663	or return;	2564	map {
1664
1665	my @paths;
1666
1667	for (@$files) {
1668	utf8::decode $_;	2565	utf8::decode $_;
1669	next if /\.pst$/;	2566	s/\.map$//; # TODO future compatibility hack
1670	next unless /^$PATH_SEP/o;	2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1671		2568	? ()
1672	push @paths, cf::map::normalise $_;	2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
1673	}	2571	]
1674
1675	\@paths
1676	}	2572	}
1677		2573
1678	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	}
1679		2605
1680	=back	2606	=back
1681		2607
1682	=head3 cf::object	2608	=head3 cf::object
1683		2609
…		…
1687		2613
1688	=over 4	2614	=over 4
1689		2615
1690	=item $ob->inv_recursive	2616	=item $ob->inv_recursive
1691		2617
1692	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.
1693		2620
1694	=cut	2621	=cut
1695		2622
1696	sub inv_recursive_;	2623	sub inv_recursive_;
1697	sub inv_recursive_ {	2624	sub inv_recursive_ {
…		…
1700		2627
1701	sub inv_recursive {	2628	sub inv_recursive {
1702	inv_recursive_ inv $_[0]	2629	inv_recursive_ inv $_[0]
1703	}	2630	}
1704		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
1705	package cf;	2660	package cf;
1706		2661
1707	=back	2662	=back
1708		2663
1709	=head3 cf::object::player	2664	=head3 cf::object::player
…		…
1715	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>
1716	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
1717	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1718		2673
1719	=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	};
1720		2689
1721	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1722	# with dialog boxes.	2691	# with dialog boxes.
1723	#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
1724	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1726		2695
1727	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1728		2697
1729	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1730	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1731	} 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 {
1732	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1733	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1734	}	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 (@_);
1735	}	2723	}
1736		2724
1737	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1738		2726
1739	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1752		2740
1753	=item $player_object->enter_link	2741	=item $player_object->enter_link
1754		2742
1755	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}>).
1756		2744
1757	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.
1758	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.
1759		2749
1760	Will never block.	2750	Will never block.
1761		2751
1762	=item $player_object->leave_link ($map, $x, $y)	2752	=item $player_object->leave_link ($map, $x, $y)
1763		2753
…		…
1783	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1784	my ($self) = @_;	2774	my ($self) = @_;
1785		2775
1786	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
1787		2777
		2778	++$self->{_link_recursion};
		2779
1788	return if UNIVERSAL::isa $self->map, "ext::map_link";	2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
1789		2781
1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1791	if $self->map;	2783	if $self->map && $self->map->{path} ne "{link}";
1792		2784
1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1794	}	2786	}
1795		2787
1796	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1797	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
		2790
		2791	return unless $self->contr->active;
1798		2792
1799	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1800		2794
1801	unless ($map) {	2795	unless ($map) {
1802	# restore original map position	2796	# restore original map position
…		…
1813	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1814	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1815		2809
1816	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1817	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1818	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1819		2813
1820	$map->load;	2814	$map->load;
1821	$map->load_diag;
1822		2815
1823	return unless $self->contr->active;	2816	return unless $self->contr->active;
		2817
		2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2819	if ($self->enter_map ($map, $x, $y)) {
		2820	# entering was successful
		2821	delete $self->{_link_recursion};
		2822	# only activate afterwards, to support waiting in hooks
1824	$self->activate_recursive;	2823	$self->activate_recursive;
1825	$self->enter_map ($map, $x, $y);
1826	}
1827
1828	cf::player->attach (
1829	on_logout => sub {
1830	my ($pl) = @_;
1831
1832	# abort map switching before logout
1833	if ($pl->ob->{_link_pos}) {
1834	cf::sync_job {
1835	$pl->ob->leave_link
1836	};
1837	}
1838	},	2824	}
1839	on_login => sub {
1840	my ($pl) = @_;
1841		2825
1842	# try to abort aborted map switching on player login :)	2826	}
1843	# should happen only on crashes
1844	if ($pl->ob->{_link_pos}) {
1845	$pl->ob->enter_link;
1846	(async {
1847	# we need this sleep as the login has a concurrent enter_exit running
1848	# and this sleep increases chances of the player not ending up in scorn
1849	$pl->ob->reply (undef,
1850	"There was an internal problem at your last logout, "
1851	. "the server will try to bring you to your intended destination in a second.",
1852	cf::NDI_RED);
1853	Coro::Timer::sleep 1;
1854	$pl->ob->leave_link;
1855	})->prio (2);
1856	}
1857	},
1858	);
1859		2827
1860	=item $player_object->goto ($path, $x, $y)	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1861		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
1862	=cut	2839	=cut
		2840
		2841	our $GOTOGEN;
1863		2842
1864	sub cf::object::player::goto {	2843	sub cf::object::player::goto {
1865	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;
1866		2854
1867	$self->enter_link;	2855	$self->enter_link;
1868		2856
1869	(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
1870	my $map = eval {	2879	my $map = eval {
1871	my $map = cf::map::find $path;	2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1872	$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
1873	$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 $@;
1874	} or	2895	}
1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1876		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1877	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1878	})->prio (1);	2903	})->prio (1);
1879	}	2904	}
1880		2905
1881	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
1882		2907
…		…
1902	}	2927	}
1903		2928
1904	sub prepare_random_map {	2929	sub prepare_random_map {
1905	my ($exit) = @_;	2930	my ($exit) = @_;
1906		2931
1907	my $guard = cf::lock_acquire "exit_prepare:$exit";
1908
1909	# all this does is basically replace the /! path by	2932	# all this does is basically replace the /! path by
1910	# a new random map path (?random/...) with a seed	2933	# a new random map path (?random/...) with a seed
1911	# that depends on the exit object	2934	# that depends on the exit object
1912		2935
1913	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
…		…
1915	if ($exit->map) {	2938	if ($exit->map) {
1916	$rmp->{region} = $exit->region->name;	2939	$rmp->{region} = $exit->region->name;
1917	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
1918	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
1919	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
1920	}	2945	}
1921		2946
1922	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
1923		2948
1924	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1925	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2951	my $meta = "$RANDOMDIR/$md5.meta";
1927		2952
1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1929	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
1930	undef $fh;	2955	undef $fh;
1931	aio_rename "$meta~", $meta;	2956	aio_rename "$meta~", $meta;
1932		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
1933	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
1934	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
1935	}	2964	}
1936	}	2965	}
1937		2966
1938	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
1939	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
1940		2969
1941	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
1942		2971
1943	if ($exit->slaying eq "/!") {
1944	#TODO: this should de-fi-ni-te-ly not be a sync-job
1945	cf::sync_job { prepare_random_map $exit };
1946	}
1947
1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949	my $hp = $exit->stats->hp;
1950	my $sp = $exit->stats->sp;
1951
1952	$self->enter_link;	2972	$self->enter_link;
1953		2973
1954	(async {	2974	(async {
1955	$self->deactivate_recursive; # just to be sure	2975	$Coro::current->{desc} = "enter_exit";
		2976
1956	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
1957	$self->goto ($slaying, $hp, $sp);	3007	$self->goto ($map, $x, $y);
1958		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
1959	1;	3013	1
1960	}) {	3014	}) {
1961	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
1962	. "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. "
1963	. "Please report this to the dungeon master!",	3017	. "Please report this to the dungeon master!",
1964	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
1965		3019
1966	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
1967	$self->leave_link;	3021	$self->leave_link;
1968	}	3022	}
1969	})->prio (1);	3023	})->prio (1);
1970	}	3024	}
1971		3025
…		…
1982		3036
1983	sub cf::client::send_drawinfo {	3037	sub cf::client::send_drawinfo {
1984	my ($self, $text, $flags) = @_;	3038	my ($self, $text, $flags) = @_;
1985		3039
1986	utf8::encode $text;	3040	utf8::encode $text;
1987	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1988	}	3042	}
1989		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
		3231	=item $client->ext_msg ($type, @msg)
		3232
		3233	Sends an ext event to the client.
		3234
		3235	=cut
		3236
		3237	sub cf::client::ext_msg($$@) {
		3238	my ($self, $type, @msg) = @_;
		3239
		3240	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3241	}
		3242
		3243	=item $client->ext_reply ($msgid, @msg)
		3244
		3245	Sends an ext reply to the client.
		3246
		3247	=cut
		3248
		3249	sub cf::client::ext_reply($$@) {
		3250	my ($self, $id, @msg) = @_;
		3251
		3252	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3253	}
1990		3254
1991	=item $success = $client->query ($flags, "text", \&cb)	3255	=item $success = $client->query ($flags, "text", \&cb)
1992		3256
1993	Queues a query to the client, calling the given callback with	3257	Queues a query to the client, calling the given callback with
1994	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3258	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1995	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3259	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1996		3260
1997	Queries can fail, so check the return code. Or don't, as queries will become	3261	Queries can fail, so check the return code. Or don't, as queries will
1998	reliable at some point in the future.	3262	become reliable at some point in the future.
1999		3263
2000	=cut	3264	=cut
2001		3265
2002	sub cf::client::query {	3266	sub cf::client::query {
2003	my ($self, $flags, $text, $cb) = @_;	3267	my ($self, $flags, $text, $cb) = @_;
…		…
2011	utf8::encode $text;	3275	utf8::encode $text;
2012	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3276	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2013		3277
2014	$self->send_packet ($self->{query_queue}[0][0])	3278	$self->send_packet ($self->{query_queue}[0][0])
2015	if @{ $self->{query_queue} } == 1;	3279	if @{ $self->{query_queue} } == 1;
		3280
		3281	1
2016	}	3282	}
2017		3283
2018	cf::client->attach (	3284	cf::client->attach (
		3285	on_connect => sub {
		3286	my ($ns) = @_;
		3287
		3288	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3289	},
2019	on_reply => sub {	3290	on_reply => sub {
2020	my ($ns, $msg) = @_;	3291	my ($ns, $msg) = @_;
2021		3292
2022	# this weird shuffling is so that direct followup queries	3293	# this weird shuffling is so that direct followup queries
2023	# get handled first	3294	# get handled first
…		…
2035	} else {	3306	} else {
2036	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3307	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2037	}	3308	}
2038	}	3309	}
2039	},	3310	},
		3311	on_exticmd => sub {
		3312	my ($ns, $buf) = @_;
		3313
		3314	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3315
		3316	if (ref $msg) {
		3317	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3318
		3319	my @reply;
		3320
		3321	if (my $cb = $EXTICMD{$type}) {
		3322	@reply = $cb->($ns, @payload);
		3323	}
		3324
		3325	$ns->ext_reply ($reply, @reply)
		3326	if $reply;
		3327
		3328	} else {
		3329	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3330	}
		3331
		3332	cf::override;
		3333	},
2040	);	3334	);
2041		3335
2042	=item $client->async (\&cb)	3336	=item $client->async (\&cb)
2043		3337
2044	Create a new coroutine, running the specified callback. The coroutine will	3338	Create a new coroutine, running the specified callback. The coroutine will
…		…
2060		3354
2061	$coro	3355	$coro
2062	}	3356	}
2063		3357
2064	cf::client->attach (	3358	cf::client->attach (
2065	on_destroy => sub {	3359	on_client_destroy => sub {
2066	my ($ns) = @_;	3360	my ($ns) = @_;
2067		3361
2068	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3362	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2069	},	3363	},
2070	);	3364	);
…		…
2085	our $safe = new Safe "safe";	3379	our $safe = new Safe "safe";
2086	our $safe_hole = new Safe::Hole;	3380	our $safe_hole = new Safe::Hole;
2087		3381
2088	$SIG{FPE} = 'IGNORE';	3382	$SIG{FPE} = 'IGNORE';
2089		3383
2090	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3384	$safe->permit_only (Opcode::opset qw(
		3385	:base_core :base_mem :base_orig :base_math :base_loop
		3386	grepstart grepwhile mapstart mapwhile
		3387	sort time
		3388	));
2091		3389
2092	# here we export the classes and methods available to script code	3390	# here we export the classes and methods available to script code
2093		3391
2094	=pod	3392	=pod
2095		3393
2096	The following fucntions and emthods are available within a safe environment:	3394	The following functions and methods are available within a safe environment:
2097		3395
2098	cf::object contr pay_amount pay_player map	3396	cf::object
		3397	contr pay_amount pay_player map x y force_find force_add destroy
		3398	insert remove name archname title slaying race decrease split
		3399	value
		3400
2099	cf::object::player player	3401	cf::object::player
2100	cf::player peaceful	3402	player
2101	cf::map trigger	3403
		3404	cf::player
		3405	peaceful
		3406
		3407	cf::map
		3408	trigger
2102		3409
2103	=cut	3410	=cut
2104		3411
2105	for (	3412	for (
2106	["cf::object" => qw(contr pay_amount pay_player map)],	3413	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3414	insert remove inv nrof name archname title slaying race
		3415	decrease split destroy change_exp value msg lore send_msg)],
2107	["cf::object::player" => qw(player)],	3416	["cf::object::player" => qw(player)],
2108	["cf::player" => qw(peaceful)],	3417	["cf::player" => qw(peaceful send_msg)],
2109	["cf::map" => qw(trigger)],	3418	["cf::map" => qw(trigger)],
2110	) {	3419	) {
2111	no strict 'refs';
2112	my ($pkg, @funs) = @$_;	3420	my ($pkg, @funs) = @$_;
2113	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3421	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2114	for @funs;	3422	for @funs;
2115	}	3423	}
2116		3424
…		…
2131		3439
2132	my $qcode = $code;	3440	my $qcode = $code;
2133	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3441	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2134	$qcode =~ s/\n/\\n/g;	3442	$qcode =~ s/\n/\\n/g;
2135		3443
		3444	%vars = (_dummy => 0) unless %vars;
		3445
		3446	my @res;
2136	local $_;	3447	local $_;
2137	local @safe::cf::_safe_eval_args = values %vars;
2138		3448
2139	my $eval =	3449	my $eval =
2140	"do {\n"	3450	"do {\n"
2141	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3451	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2142	. "#line 0 \"{$qcode}\"\n"	3452	. "#line 0 \"{$qcode}\"\n"
2143	. $code	3453	. $code
2144	. "\n}"	3454	. "\n}"
2145	;	3455	;
2146		3456
		3457	if ($CFG{safe_eval}) {
2147	sub_generation_inc;	3458	sub_generation_inc;
		3459	local @safe::cf::_safe_eval_args = values %vars;
2148	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3460	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2149	sub_generation_inc;	3461	sub_generation_inc;
		3462	} else {
		3463	local @cf::_safe_eval_args = values %vars;
		3464	@res = wantarray ? eval eval : scalar eval $eval;
		3465	}
2150		3466
2151	if ($@) {	3467	if ($@) {
2152	warn "$@";	3468	warn "$@",
2153	warn "while executing safe code '$code'\n";	3469	"while executing safe code '$code'\n",
2154	warn "with arguments " . (join " ", %vars) . "\n";	3470	"with arguments " . (join " ", %vars) . "\n";
2155	}	3471	}
2156		3472
2157	wantarray ? @res : $res[0]	3473	wantarray ? @res : $res[0]
2158	}	3474	}
2159		3475
…		…
2173	=cut	3489	=cut
2174		3490
2175	sub register_script_function {	3491	sub register_script_function {
2176	my ($fun, $cb) = @_;	3492	my ($fun, $cb) = @_;
2177		3493
2178	no strict 'refs';	3494	$fun = "safe::$fun" if $CFG{safe_eval};
2179	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3495	*$fun = $safe_hole->wrap ($cb);
2180	}	3496	}
2181		3497
2182	=back	3498	=back
2183		3499
2184	=cut	3500	=cut
2185
2186	#############################################################################
2187
2188	=head2 EXTENSION DATABASE SUPPORT
2189
2190	Crossfire maintains a very simple database for extension use. It can
2191	currently store anything that can be serialised using Storable, which
2192	excludes objects.
2193
2194	The parameter C<$family> should best start with the name of the extension
2195	using it, it should be unique.
2196
2197	=over 4
2198
2199	=item $value = cf::db_get $family => $key
2200
2201	Returns a single value from the database.
2202
2203	=item cf::db_put $family => $key => $value
2204
2205	Stores the given C<$value> in the family.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	sub db_init {
2212	unless ($DB) {
2213	$DB = BDB::db_create $DB_ENV;
2214
2215	cf::sync_job {
2216	eval {
2217	$DB->set_flags (BDB::CHKSUM);
2218
2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221	cf::cleanup "db_open(db): $!" if $!;
2222	};
2223	cf::cleanup "db_open(db): $@" if $@;
2224	};
2225
2226	my $path = cf::localdir . "/database.pst";
2227	if (stat $path) {
2228	cf::sync_job {
2229	my $pst = Storable::retrieve $path;
2230
2231	cf::db_put (board => data => $pst->{board});
2232	cf::db_put (guildrules => data => $pst->{guildrules});
2233	cf::db_put (rent => balance => $pst->{rent}{balance});
2234	BDB::db_env_txn_checkpoint $DB_ENV;
2235
2236	unlink $path;
2237	};
2238	}
2239	}
2240	}
2241
2242	sub db_get($$) {
2243	my $key = "$_[0]/$_[1]";
2244
2245	cf::sync_job {
2246	BDB::db_get $DB, undef, $key, my $data;
2247
2248	$! ? ()
2249	: Compress::LZF::sthaw $data
2250	}
2251	}
2252
2253	sub db_put($$$) {
2254	BDB::dbreq_pri 4;
2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2256	}
2257		3501
2258	#############################################################################	3502	#############################################################################
2259	# the server's init and main functions	3503	# the server's init and main functions
2260		3504
		3505	our %FACEHASH; # hash => idx, #d# HACK for http server
		3506
		3507	# internal api, not fianlised
		3508	sub add_face {
		3509	my ($name, $type, $data) = @_;
		3510
		3511	my $idx = cf::face::find $name;
		3512
		3513	if ($idx) {
		3514	delete $FACEHASH{cf::face::get_chksum $idx};
		3515	} else {
		3516	$idx = cf::face::alloc $name;
		3517	}
		3518
		3519	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3520
		3521	cf::face::set_type $idx, $type;
		3522	cf::face::set_data $idx, 0, $data, $hash;
		3523	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3524	$FACEHASH{$hash} = $idx;#d#
		3525
		3526	$idx
		3527	}
		3528
		3529	sub load_facedata($) {
		3530	my ($path) = @_;
		3531
		3532	# HACK to clear player env face cache, we need some signal framework
		3533	# for this (global event?)
		3534	%ext::player_env::MUSIC_FACE_CACHE = ();
		3535
		3536	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3537
		3538	trace "loading facedata from $path\n";
		3539
		3540	my $facedata = decode_storable load_file $path;
		3541
		3542	$facedata->{version} == 2
		3543	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3544
		3545	cf::cede_to_tick;
		3546
		3547	{
		3548	my $faces = $facedata->{faceinfo};
		3549
		3550	for my $face (sort keys %$faces) {
		3551	my $info = $faces->{$face};
		3552	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3553
		3554	cf::face::set_visibility $idx, $info->{visibility};
		3555	cf::face::set_magicmap $idx, $info->{magicmap};
		3556	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3557	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3558	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3559	$FACEHASH{$info->{hash64}} = $idx;#d#
		3560
		3561	cf::cede_to_tick;
		3562	}
		3563
		3564	while (my ($face, $info) = each %$faces) {
		3565	next unless $info->{smooth};
		3566
		3567	my $idx = cf::face::find $face
		3568	or next;
		3569
		3570	if (my $smooth = cf::face::find $info->{smooth}) {
		3571	cf::face::set_smooth $idx, $smooth;
		3572	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3573	} else {
		3574	error "smooth face '$info->{smooth}' not found for face '$face'";
		3575	}
		3576
		3577	cf::cede_to_tick;
		3578	}
		3579	}
		3580
		3581	{
		3582	my $anims = $facedata->{animinfo};
		3583
		3584	while (my ($anim, $info) = each %$anims) {
		3585	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3586	cf::cede_to_tick;
		3587	}
		3588
		3589	cf::anim::invalidate_all; # d'oh
		3590	}
		3591
		3592	{
		3593	my $res = $facedata->{resource};
		3594
		3595	while (my ($name, $info) = each %$res) {
		3596	if (defined (my $type = $info->{type})) {
		3597	# TODO: different hash - must free and use new index, or cache ixface data queue
		3598	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3599
		3600	cf::face::set_type $idx, $type;
		3601	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3602	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3603	$FACEHASH{$info->{hash}} = $idx;#d#
		3604	} else {
		3605	# $RESOURCE{$name} = $info; # unused
		3606	}
		3607
		3608	cf::cede_to_tick;
		3609	}
		3610	}
		3611
		3612	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3613
		3614	1
		3615	}
		3616
		3617	register_exticmd fx_want => sub {
		3618	my ($ns, $want) = @_;
		3619
		3620	while (my ($k, $v) = each %$want) {
		3621	$ns->fx_want ($k, $v);
		3622	}
		3623	};
		3624
2261	sub load_resources {	3625	sub load_resource_file($) {
2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3626	my $guard = lock_acquire "load_resource_file";
		3627
		3628	my $status = load_resource_file_ $_[0];
		3629	get_slot 0.1, 100;
		3630	cf::arch::commit_load;
		3631
		3632	$status
		3633	}
		3634
		3635	sub reload_exp_table {
		3636	_reload_exp_table;
		3637
		3638	add_face "res/exp_table" => FT_RSRC,
		3639	JSON::XS->new->utf8->canonical->encode (
		3640	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3641	);
		3642	}
		3643
		3644	sub reload_materials {
		3645	_reload_materials;
		3646	}
		3647
		3648	sub reload_regions {
		3649	# HACK to clear player env face cache, we need some signal framework
		3650	# for this (global event?)
		3651	%ext::player_env::MUSIC_FACE_CACHE = ();
		3652
		3653	load_resource_file "$MAPDIR/regions"
2263	or die "unable to load regions file\n";#d#	3654	or die "unable to load regions file\n";
2264	}
2265		3655
2266	sub cfg_load {	3656	for (cf::region::list) {
2267	open my $fh, "<:utf8", cf::confdir . "/config"	3657	$_->{match} = qr/$_->{match}/
2268	or return;	3658	if exists $_->{match};
		3659	}
		3660	}
2269		3661
2270	local $/;	3662	sub reload_facedata {
2271	*CFG = YAML::Syck::Load <$fh>;	3663	load_facedata "$DATADIR/facedata"
		3664	or die "unable to load facedata\n";
		3665	}
2272		3666
		3667	sub reload_archetypes {
		3668	load_resource_file "$DATADIR/archetypes"
		3669	or die "unable to load archetypes\n";
		3670
		3671	add_face "res/skill_info" => FT_RSRC,
		3672	JSON::XS->new->utf8->canonical->encode (
		3673	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3674	);
		3675	add_face "res/spell_paths" => FT_RSRC,
		3676	JSON::XS->new->utf8->canonical->encode (
		3677	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3678	);
		3679	}
		3680
		3681	sub reload_treasures {
		3682	load_resource_file "$DATADIR/treasures"
		3683	or die "unable to load treasurelists\n";
		3684	}
		3685
		3686	sub reload_sound {
		3687	trace "loading sound config from $DATADIR/sound\n";
		3688
		3689	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3690
		3691	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3692	my $sound = $soundconf->{compat}[$_]
		3693	or next;
		3694
		3695	my $face = cf::face::find "sound/$sound->[1]";
		3696	cf::sound::set $sound->[0] => $face;
		3697	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3698	}
		3699
		3700	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3701	my $face = cf::face::find "sound/$v";
		3702	cf::sound::set $k => $face;
		3703	}
		3704	}
		3705
		3706	sub reload_pod {
		3707	trace "loading pods $PODDIR\n";
		3708
		3709	my @command_help;
		3710
		3711	for (
		3712	[0, "command_help"],
		3713	[1, "emote_help"],
		3714	[2, "dmcommand_help"],
		3715	) {
		3716	my ($type, $path) = @$_;
		3717
		3718	my $paragraphs = &cf::pod::load_pod ("$PODDIR/$path.pod")
		3719	or die "unable to load $path";
		3720
		3721	my $level = 1e9;
		3722
		3723	for my $par (@$paragraphs) {
		3724	if ($par->{type} eq "head2") {
		3725	# this code taken almost verbatim from DC/Protocol.pm
		3726
		3727	if ($par->{markup} =~ /^(\S+) (?:\s+ \( ([^\)]*) \) )?/x) {
		3728	my $cmd = $1;
		3729	my @args = split /\|/, $2;
		3730	@args = (".*") unless @args;
		3731
		3732	$_ = $_ eq ".*" ? "" : " $_"
		3733	for @args;
		3734
		3735	my @variants = map "$cmd$_", sort { (length $a) <=> (length $b) } @args;
		3736
		3737	push @command_help, [$type, \@variants, &cf::pod::as_cfpod ([$par])];
		3738	$level = $par->{level};
		3739	} else {
		3740	error "$par->{markup}: unparsable command heading";
		3741	}
		3742	} elsif ($par->{level} > $level) {
		3743	$command_help[-1][2] .= &cf::pod::as_cfpod ([$par]);
		3744	}
		3745
		3746	cf::cede_to_tick;
		3747	}
		3748	}
		3749
		3750	@command_help = sort {
		3751	$a->[0] <=> $b->[0]
		3752	or $a->[1] cmp $b->[1]
		3753	} @command_help;
		3754
		3755	cf::cede_to_tick;
		3756
		3757	add_face "res/command_help" => FT_RSRC,
		3758	JSON::XS->new->utf8->encode (\@command_help);
		3759	}
		3760
		3761	sub reload_resources {
		3762	trace "reloading resource files...\n";
		3763
		3764	reload_materials;
		3765	reload_facedata;
		3766	reload_exp_table;
		3767	reload_sound;
		3768	reload_archetypes;
		3769	reload_regions;
		3770	reload_treasures;
		3771	reload_pod;
		3772
		3773	trace "finished reloading resource files\n";
		3774	}
		3775
		3776	sub reload_config {
		3777	trace "reloading config file...\n";
		3778
		3779	my $config = load_file "$CONFDIR/config";
		3780	utf8::decode $config;
		3781	*CFG = decode_yaml $config;
		3782
2273	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3783	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2274		3784
2275	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3785	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2276	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3786	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2277		3787
2278	if (exists $CFG{mlockall}) {	3788	if (exists $CFG{mlockall}) {
…		…
2282	};	3792	};
2283	warn $@ if $@;	3793	warn $@ if $@;
2284	}	3794	}
2285	}	3795	}
2286		3796
2287	sub init {	3797	sub pidfile() {
2288	load_resources;	3798	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3799	or die "$PIDFILE: $!";
		3800	flock $fh, &Fcntl::LOCK_EX
		3801	or die "$PIDFILE: flock: $!";
		3802	$fh
		3803	}
		3804
		3805	# make sure only one server instance is running at any one time
		3806	sub atomic {
		3807	my $fh = pidfile;
		3808
		3809	my $pid = <$fh>;
		3810	kill 9, $pid if $pid > 0;
		3811
		3812	seek $fh, 0, 0;
		3813	print $fh $$;
		3814	}
		3815
		3816	sub main_loop {
		3817	trace "EV::loop starting\n";
		3818	if (1) {
		3819	EV::loop;
		3820	}
		3821	trace "EV::loop returned\n";
		3822	goto &main_loop unless $REALLY_UNLOOP;
2289	}	3823	}
2290		3824
2291	sub main {	3825	sub main {
		3826	cf::init_globals; # initialise logging
		3827
		3828	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3829	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3830	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3831	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3832
		3833	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3834
2292	# we must not ever block the main coroutine	3835	# we must not ever block the main coroutine
2293	local $Coro::idle = sub {	3836	$Coro::idle = sub {
2294	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3837	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2295	(async {	3838	(async {
2296	Event::one_event;	3839	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3840	EV::loop EV::LOOP_ONESHOT;
2297	})->prio (Coro::PRIO_MAX);	3841	})->prio (Coro::PRIO_MAX);
2298	};	3842	};
2299		3843
2300	cfg_load;	3844	evthread_start IO::AIO::poll_fileno;
		3845
		3846	cf::sync_job {
		3847	cf::incloader::init ();
		3848
2301	db_init;	3849	db_init;
		3850
		3851	cf::init_anim;
		3852	cf::init_attackmess;
		3853	cf::init_dynamic;
		3854
		3855	cf::load_settings;
		3856
		3857	reload_resources;
		3858	reload_config;
		3859
		3860	cf::init_uuid;
		3861	cf::init_signals;
		3862	cf::init_skills;
		3863
		3864	cf::init_beforeplay;
		3865
		3866	atomic;
		3867
2302	load_extensions;	3868	load_extensions;
2303		3869
2304	$TICK_WATCHER->start;	3870	utime time, time, $RUNTIMEFILE;
2305	$WRITE_RUNTIME_WATCHER->start;	3871
2306	Event::loop;	3872	# no (long-running) fork's whatsoever before this point(!)
		3873	use POSIX ();
		3874	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3875
		3876	cf::_post_init 0;
		3877	};
		3878
		3879	cf::object::thawer::errors_are_fatal 0;
		3880	info "parse errors in files are no longer fatal from this point on.\n";
		3881
		3882	AE::postpone {
		3883	undef &main; # free gobs of memory :)
		3884	};
		3885
		3886	goto &main_loop;
2307	}	3887	}
2308		3888
2309	#############################################################################	3889	#############################################################################
2310	# initialisation and cleanup	3890	# initialisation and cleanup
2311		3891
2312	# install some emergency cleanup handlers	3892	# install some emergency cleanup handlers
2313	BEGIN {	3893	BEGIN {
		3894	our %SIGWATCHER = ();
2314	for my $signal (qw(INT HUP TERM)) {	3895	for my $signal (qw(INT HUP TERM)) {
2315	Event->signal (	3896	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2316	reentrant => 0,
2317	data => WF_AUTOCANCEL,
2318	signal => $signal,
2319	prio => 0,
2320	cb => sub {
2321	cf::cleanup "SIG$signal";	3897	cf::cleanup "SIG$signal";
2322	},
2323	);	3898	};
		3899	}
		3900	}
		3901
		3902	sub write_runtime_sync {
		3903	my $t0 = AE::time;
		3904
		3905	# first touch the runtime file to show we are still running:
		3906	# the fsync below can take a very very long time.
		3907
		3908	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3909
		3910	my $guard = cf::lock_acquire "write_runtime";
		3911
		3912	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3913	or return;
		3914
		3915	my $value = $cf::RUNTIME + 90 + 10;
		3916	# 10 is the runtime save interval, for a monotonic clock
		3917	# 60 allows for the watchdog to kill the server.
		3918
		3919	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3920	and return;
		3921
		3922	# always fsync - this file is important
		3923	aio_fsync $fh
		3924	and return;
		3925
		3926	# touch it again to show we are up-to-date
		3927	aio_utime $fh, undef, undef;
		3928
		3929	close $fh
		3930	or return;
		3931
		3932	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3933	and return;
		3934
		3935	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3936
2324	}	3937	1
		3938	}
		3939
		3940	our $uuid_lock;
		3941	our $uuid_skip;
		3942
		3943	sub write_uuid_sync($) {
		3944	$uuid_skip ||= $_[0];
		3945
		3946	return if $uuid_lock;
		3947	local $uuid_lock = 1;
		3948
		3949	my $uuid = "$LOCALDIR/uuid";
		3950
		3951	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3952	or return;
		3953
		3954	my $value = uuid_seq uuid_cur;
		3955
		3956	unless ($value) {
		3957	info "cowardly refusing to write zero uuid value!\n";
		3958	return;
		3959	}
		3960
		3961	my $value = uuid_str $value + $uuid_skip;
		3962	$uuid_skip = 0;
		3963
		3964	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3965	and return;
		3966
		3967	# always fsync - this file is important
		3968	aio_fsync $fh
		3969	and return;
		3970
		3971	close $fh
		3972	or return;
		3973
		3974	aio_rename "$uuid~", $uuid
		3975	and return;
		3976
		3977	trace "uuid file written ($value).\n";
		3978
		3979	1
		3980
		3981	}
		3982
		3983	sub write_uuid($$) {
		3984	my ($skip, $sync) = @_;
		3985
		3986	$sync ? write_uuid_sync $skip
		3987	: async { write_uuid_sync $skip };
2325	}	3988	}
2326		3989
2327	sub emergency_save() {	3990	sub emergency_save() {
2328	my $freeze_guard = cf::freeze_mainloop;	3991	my $freeze_guard = cf::freeze_mainloop;
2329		3992
2330	warn "enter emergency perl save\n";	3993	info "emergency_perl_save: enter\n";
		3994
		3995	# this is a trade-off: we want to be very quick here, so
		3996	# save all maps without fsync, and later call a global sync
		3997	# (which in turn might be very very slow)
		3998	local $USE_FSYNC = 0;
2331		3999
2332	cf::sync_job {	4000	cf::sync_job {
		4001	cf::write_runtime_sync; # external watchdog should not bark
		4002
2333	# use a peculiar iteration method to avoid tripping on perl	4003	# use a peculiar iteration method to avoid tripping on perl
2334	# refcount bugs in for. also avoids problems with players	4004	# refcount bugs in for. also avoids problems with players
2335	# and maps saved/destroyed asynchronously.	4005	# and maps saved/destroyed asynchronously.
2336	warn "begin emergency player save\n";	4006	info "emergency_perl_save: begin player save\n";
2337	for my $login (keys %cf::PLAYER) {	4007	for my $login (keys %cf::PLAYER) {
2338	my $pl = $cf::PLAYER{$login} or next;	4008	my $pl = $cf::PLAYER{$login} or next;
2339	$pl->valid or next;	4009	$pl->valid or next;
		4010	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2340	$pl->save;	4011	$pl->save;
2341	}	4012	}
2342	warn "end emergency player save\n";	4013	info "emergency_perl_save: end player save\n";
2343		4014
2344	warn "begin emergency map save\n";	4015	cf::write_runtime_sync; # external watchdog should not bark
		4016
		4017	info "emergency_perl_save: begin map save\n";
2345	for my $path (keys %cf::MAP) {	4018	for my $path (keys %cf::MAP) {
2346	my $map = $cf::MAP{$path} or next;	4019	my $map = $cf::MAP{$path} or next;
2347	$map->valid or next;	4020	$map->valid or next;
2348	$map->save;	4021	$map->save;
2349	}	4022	}
2350	warn "end emergency map save\n";	4023	info "emergency_perl_save: end map save\n";
2351		4024
2352	warn "begin emergency database checkpoint\n";	4025	cf::write_runtime_sync; # external watchdog should not bark
		4026
		4027	info "emergency_perl_save: begin database checkpoint\n";
2353	BDB::db_env_txn_checkpoint $DB_ENV;	4028	BDB::db_env_txn_checkpoint $DB_ENV;
2354	warn "end emergency database checkpoint\n";	4029	info "emergency_perl_save: end database checkpoint\n";
		4030
		4031	info "emergency_perl_save: begin write uuid\n";
		4032	write_uuid_sync 1;
		4033	info "emergency_perl_save: end write uuid\n";
		4034
		4035	cf::write_runtime_sync; # external watchdog should not bark
		4036
		4037	trace "emergency_perl_save: syncing database to disk";
		4038	BDB::db_env_txn_checkpoint $DB_ENV;
		4039
		4040	info "emergency_perl_save: starting sync\n";
		4041	IO::AIO::aio_sync sub {
		4042	info "emergency_perl_save: finished sync\n";
		4043	};
		4044
		4045	cf::write_runtime_sync; # external watchdog should not bark
		4046
		4047	trace "emergency_perl_save: flushing outstanding aio requests";
		4048	while (IO::AIO::nreqs || BDB::nreqs) {
		4049	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4050	}
		4051
		4052	cf::write_runtime_sync; # external watchdog should not bark
2355	};	4053	};
2356		4054
2357	warn "leave emergency perl save\n";	4055	info "emergency_perl_save: leave\n";
2358	}	4056	}
2359		4057
2360	sub post_cleanup {	4058	sub post_cleanup {
2361	my ($make_core) = @_;	4059	my ($make_core) = @_;
2362		4060
		4061	IO::AIO::flush;
		4062
2363	warn Carp::longmess "post_cleanup backtrace"	4063	error Carp::longmess "post_cleanup backtrace"
2364	if $make_core;	4064	if $make_core;
2365	}
2366		4065
		4066	my $fh = pidfile;
		4067	unlink $PIDFILE if <$fh> == $$;
		4068	}
		4069
		4070	# a safer delete_package, copied from Symbol
		4071	sub clear_package($) {
		4072	my $pkg = shift;
		4073
		4074	# expand to full symbol table name if needed
		4075	unless ($pkg =~ /^main::.*::$/) {
		4076	$pkg = "main$pkg" if $pkg =~ /^::/;
		4077	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4078	$pkg .= '::' unless $pkg =~ /::$/;
		4079	}
		4080
		4081	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4082	my $stem_symtab = *{$stem}{HASH};
		4083
		4084	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4085	or return;
		4086
		4087	# clear all symbols
		4088	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4089	for my $name (keys %$leaf_symtab) {
		4090	_gv_clear *{"$pkg$name"};
		4091	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4092	}
		4093	}
		4094
2367	sub reload() {	4095	sub do_reload_perl() {
2368	# can/must only be called in main	4096	# can/must only be called in main
2369	if ($Coro::current != $Coro::main) {	4097	unless (in_main) {
2370	warn "can only reload from main coroutine";	4098	error "can only reload from main coroutine";
2371	return;	4099	return;
2372	}	4100	}
2373		4101
2374	warn "reloading...";	4102	return if $RELOAD++;
2375		4103
2376	warn "entering sync_job";	4104	my $t1 = AE::time;
2377		4105
		4106	while ($RELOAD) {
		4107	cf::get_slot 0.1, -1, "reload_perl";
		4108	info "perl_reload: reloading...";
		4109
		4110	trace "perl_reload: entering sync_job";
		4111
2378	cf::sync_job {	4112	cf::sync_job {
2379	cf::write_runtime;
2380	cf::emergency_save;	4113	#cf::emergency_save;
2381	cf::write_runtime;
2382		4114
2383	warn "syncing database to disk";
2384	BDB::db_env_txn_checkpoint $DB_ENV;
2385
2386	# if anything goes wrong in here, we should simply crash as we already saved
2387
2388	warn "cancelling all WF_AUTOCANCEL watchers";
2389	for (Event::all_watchers) {
2390	$_->cancel if $_->data & WF_AUTOCANCEL;
2391	}
2392
2393	warn "flushing outstanding aio requests";
2394	for (;;) {
2395	BDB::flush;
2396	IO::AIO::flush;
2397	Coro::cede;
2398	last unless IO::AIO::nreqs || BDB::nreqs;
2399	warn "iterate...";
2400	}
2401
2402	warn "cancelling all extension coros";	4115	trace "perl_reload: cancelling all extension coros";
2403	$_->cancel for values %EXT_CORO;	4116	$_->cancel for values %EXT_CORO;
2404	%EXT_CORO = ();	4117	%EXT_CORO = ();
2405		4118
2406	warn "removing commands";	4119	trace "perl_reload: removing commands";
2407	%COMMAND = ();	4120	%COMMAND = ();
2408		4121
2409	warn "removing ext commands";	4122	trace "perl_reload: removing ext/exti commands";
2410	%EXTCMD = ();	4123	%EXTCMD = ();
		4124	%EXTICMD = ();
2411		4125
2412	warn "unloading/nuking all extensions";	4126	trace "perl_reload: unloading/nuking all extensions";
2413	for my $pkg (@EXTS) {	4127	for my $pkg (@EXTS) {
2414	warn "... unloading $pkg";	4128	trace "... unloading $pkg";
2415		4129
2416	if (my $cb = $pkg->can ("unload")) {	4130	if (my $cb = $pkg->can ("unload")) {
2417	eval {	4131	eval {
2418	$cb->($pkg);	4132	$cb->($pkg);
2419	1	4133	1
2420	} or warn "$pkg unloaded, but with errors: $@";	4134	} or error "$pkg unloaded, but with errors: $@";
		4135	}
		4136
		4137	trace "... clearing $pkg";
		4138	clear_package $pkg;
2421	}	4139	}
2422		4140
2423	warn "... nuking $pkg";
2424	Symbol::delete_package $pkg;
2425	}
2426
2427	warn "unloading all perl modules loaded from $LIBDIR";	4141	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2428	while (my ($k, $v) = each %INC) {	4142	while (my ($k, $v) = each %INC) {
2429	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4143	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2430		4144
2431	warn "... unloading $k";	4145	trace "... unloading $k";
2432	delete $INC{$k};	4146	delete $INC{$k};
2433		4147
2434	$k =~ s/\.pm$//;	4148	$k =~ s/\.pm$//;
2435	$k =~ s/\//::/g;	4149	$k =~ s/\//::/g;
2436		4150
2437	if (my $cb = $k->can ("unload_module")) {	4151	if (my $cb = $k->can ("unload_module")) {
2438	$cb->();	4152	$cb->();
		4153	}
		4154
		4155	clear_package $k;
2439	}	4156	}
2440		4157
2441	Symbol::delete_package $k;
2442	}
2443
2444	warn "getting rid of safe::, as good as possible";	4158	trace "perl_reload: getting rid of safe::, as good as possible";
2445	Symbol::delete_package "safe::$_"	4159	clear_package "safe::$_"
2446	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4160	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2447		4161
2448	warn "unloading cf.pm \"a bit\"";	4162	trace "perl_reload: unloading cf.pm \"a bit\"";
2449	delete $INC{"cf.pm"};	4163	delete $INC{"cf.pm"};
		4164	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2450		4165
2451	# don't, removes xs symbols, too,	4166	# don't, removes xs symbols, too,
2452	# and global variables created in xs	4167	# and global variables created in xs
2453	#Symbol::delete_package __PACKAGE__;	4168	#clear_package __PACKAGE__;
2454		4169
2455	warn "unload completed, starting to reload now";	4170	info "perl_reload: unload completed, starting to reload now";
2456		4171
2457	warn "reloading cf.pm";	4172	trace "perl_reload: reloading cf.pm";
2458	require cf;	4173	require cf;
2459	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4174	cf::_connect_to_perl_1;
2460		4175
2461	warn "loading config and database again";	4176	trace "perl_reload: loading config and database again";
2462	cf::cfg_load;	4177	cf::reload_config;
2463		4178
2464	warn "loading extensions";	4179	trace "perl_reload: loading extensions";
2465	cf::load_extensions;	4180	cf::load_extensions;
2466		4181
		4182	if ($REATTACH_ON_RELOAD) {
2467	warn "reattaching attachments to objects/players";	4183	trace "perl_reload: reattaching attachments to objects/players";
2468	_global_reattach;	4184	_global_reattach; # objects, sockets
2469	warn "reattaching attachments to maps";	4185	trace "perl_reload: reattaching attachments to maps";
2470	reattach $_ for values %MAP;	4186	reattach $_ for values %MAP;
		4187	trace "perl_reload: reattaching attachments to players";
		4188	reattach $_ for values %PLAYER;
		4189	}
2471		4190
2472	warn "loading reloadable resources";	4191	cf::_post_init 1;
2473	load_resources;
2474		4192
2475	warn "leaving sync_job";	4193	trace "perl_reload: leaving sync_job";
2476		4194
2477	1	4195	1
2478	} or do {	4196	} or do {
2479	warn $@;	4197	error $@;
2480	warn "error while reloading, exiting.";	4198	cf::cleanup "perl_reload: error, exiting.";
2481	exit 1;	4199	};
		4200
		4201	--$RELOAD;
		4202	}
		4203
		4204	$t1 = AE::time - $t1;
		4205	info "perl_reload: completed in ${t1}s\n";
		4206	};
		4207
		4208	our $RELOAD_WATCHER; # used only during reload
		4209
		4210	sub reload_perl() {
		4211	# doing reload synchronously and two reloads happen back-to-back,
		4212	# coro crashes during coro_state_free->destroy here.
		4213
		4214	$RELOAD_WATCHER ||= cf::async {
		4215	Coro::AIO::aio_wait cache_extensions;
		4216
		4217	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4218	do_reload_perl;
		4219	undef $RELOAD_WATCHER;
		4220	};
2482	};	4221	};
2483		4222	}
2484	warn "reloaded";
2485	};
2486
2487	our $RELOAD_WATCHER; # used only during reload
2488		4223
2489	register_command "reload" => sub {	4224	register_command "reload" => sub {
2490	my ($who, $arg) = @_;	4225	my ($who, $arg) = @_;
2491		4226
2492	if ($who->flag (FLAG_WIZ)) {	4227	if ($who->flag (FLAG_WIZ)) {
2493	$who->message ("reloading server.");	4228	$who->message ("reloading server.");
2494		4229	async {
2495	# doing reload synchronously and two reloads happen back-to-back,	4230	$Coro::current->{desc} = "perl_reload";
2496	# coro crashes during coro_state_free->destroy here.
2497
2498	$RELOAD_WATCHER ||= Event->timer (
2499	reentrant => 0,
2500	after => 0,
2501	data => WF_AUTOCANCEL,
2502	cb => sub {
2503	reload;	4231	reload_perl;
2504	undef $RELOAD_WATCHER;
2505	},
2506	);	4232	};
2507	}	4233	}
2508	};	4234	};
2509		4235
2510	unshift @INC, $LIBDIR;	4236	#############################################################################
2511		4237
2512	my $bug_warning = 0;	4238	my $bug_warning = 0;
2513		4239
2514	$TICK_WATCHER = Event->timer (	4240	sub wait_for_tick() {
2515	reentrant => 0,	4241	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2516	parked => 1,	4242
2517	prio => 0,	4243	$WAIT_FOR_TICK->wait;
2518	at => $NEXT_TICK || $TICK,	4244	}
2519	data => WF_AUTOCANCEL,	4245
2520	cb => sub {	4246	sub wait_for_tick_begin() {
		4247	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4248
		4249	my $signal = new Coro::Signal;
		4250	push @WAIT_FOR_TICK_BEGIN, $signal;
		4251	$signal->wait;
		4252	}
		4253
		4254	sub tick {
2521	if ($Coro::current != $Coro::main) {	4255	if ($Coro::current != $Coro::main) {
2522	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4256	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2523	unless ++$bug_warning > 10;	4257	unless ++$bug_warning > 10;
2524	return;	4258	return;
		4259	}
		4260
		4261	cf::one_tick; # one server iteration
		4262
		4263	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4264
		4265	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4266	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4267	Coro::async_pool {
		4268	$Coro::current->{desc} = "runtime saver";
		4269	write_runtime_sync
		4270	or error "ERROR: unable to write runtime file: $!";
2525	}	4271	};
		4272	}
2526		4273
2527	$NOW = Event::time;	4274	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2528		4275	$sig->send;
2529	cf::server_tick; # one server iteration	4276	}
2530	$RUNTIME += $TICK;
2531	$NEXT_TICK += $TICK;
2532
2533	$WAIT_FOR_TICK->broadcast;	4277	$WAIT_FOR_TICK->broadcast;
2534	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2535		4278
2536	# my $AFTER = Event::time;	4279	$LOAD = ($NOW - $TICK_START) / $TICK;
2537	# warn $AFTER - $NOW;#d#	4280	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2538		4281
2539	# if we are delayed by four ticks or more, skip them all	4282	if (0) {
2540	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4283	if ($NEXT_TICK) {
2541		4284	my $jitter = $TICK_START - $NEXT_TICK;
2542	$TICK_WATCHER->at ($NEXT_TICK);	4285	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2543	$TICK_WATCHER->start;	4286	debug "jitter $JITTER\n";#d#
		4287	}
2544	},	4288	}
2545	);	4289	}
2546		4290
2547	{	4291	{
2548	BDB::max_poll_time $TICK * 0.1;	4292	# configure BDB
2549	$BDB_POLL_WATCHER = Event->io (	4293	info "initialising database";
2550	reentrant => 0,	4294
2551	fd => BDB::poll_fileno,
2552	poll => 'r',
2553	prio => 0,
2554	data => WF_AUTOCANCEL,
2555	cb => \&BDB::poll_cb,
2556	);
2557	BDB::min_parallel 8;	4295	BDB::min_parallel 16;
2558		4296	BDB::max_poll_reqs $TICK * 0.1;
2559	BDB::set_sync_prepare {	4297	#$AnyEvent::BDB::WATCHER->priority (1);
2560	my $status;
2561	my $current = $Coro::current;
2562	(
2563	sub {
2564	$status = $!;
2565	$current->ready; undef $current;
2566	},
2567	sub {
2568	Coro::schedule while defined $current;
2569	$! = $status;
2570	},
2571	)
2572	};
2573		4298
2574	unless ($DB_ENV) {	4299	unless ($DB_ENV) {
2575	$DB_ENV = BDB::db_env_create;	4300	$DB_ENV = BDB::db_env_create;
		4301	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4302	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4303	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4304	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4305	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2576		4306
2577	cf::sync_job {	4307	cf::sync_job {
2578	eval {	4308	eval {
2579	BDB::db_env_open	4309	BDB::db_env_open
2580	$DB_ENV,	4310	$DB_ENV,
2581	$BDB_ENV_DIR,	4311	$BDBDIR,
2582	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4312	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2583	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4313	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2584	0666;	4314	0666;
2585		4315
2586	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4316	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2587
2588	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2589	$DB_ENV->set_lk_detect;
2590	};	4317	};
2591		4318
2592	cf::cleanup "db_env_open(db): $@" if $@;	4319	cf::cleanup "db_env_open(db): $@" if $@;
2593	};	4320	};
2594	}	4321	}
		4322
		4323	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4324	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4325	};
		4326	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4327	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4328	};
		4329	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4330	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4331	};
		4332
		4333	info "database initialised";
2595	}	4334	}
2596		4335
2597	{	4336	{
		4337	# configure IO::AIO
		4338
		4339	info "initialising aio";
2598	IO::AIO::min_parallel 8;	4340	IO::AIO::min_parallel 8;
2599
2600	undef $Coro::AIO::WATCHER;
2601	IO::AIO::max_poll_time $TICK * 0.1;	4341	IO::AIO::max_poll_time $TICK * 0.1;
2602	$AIO_POLL_WATCHER = Event->io (	4342	undef $AnyEvent::AIO::WATCHER;
2603	reentrant => 0,	4343	info "aio initialised";
2604	fd => IO::AIO::poll_fileno,
2605	poll => 'r',
2606	prio => 6,
2607	data => WF_AUTOCANCEL,
2608	cb => \&IO::AIO::poll_cb,
2609	);
2610	}	4344	}
2611		4345
2612	$WRITE_RUNTIME_WATCHER = Event->timer (	4346	our $_log_backtrace;
2613	reentrant => 0,	4347	our $_log_backtrace_last;
2614	data => WF_AUTOCANCEL,
2615	parked => 1,
2616	after => 1,
2617	interval => 10,
2618	prio => 6, # keep it lowest so it acts like a watchdog
2619	cb => sub {
2620	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
2621		4348
2622	Coro::async_pool {	4349	sub _log_backtrace {
2623	write_runtime	4350	my ($msg, @addr) = @_;
2624	or warn "ERROR: unable to write runtime file: $!";	4351
		4352	$msg =~ s/\n$//;
		4353
		4354	if ($_log_backtrace_last eq $msg) {
		4355	LOG llevInfo, "[ABT] $msg\n";
		4356	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4357	# limit the # of concurrent backtraces
		4358	} elsif ($_log_backtrace < 2) {
		4359	$_log_backtrace_last = $msg;
		4360	++$_log_backtrace;
		4361	my $perl_bt = Carp::longmess $msg;
		4362	async {
		4363	$Coro::current->{desc} = "abt $msg";
		4364
		4365	my @bt = fork_call {
		4366	@addr = map { sprintf "%x", $_ } @addr;
		4367	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4368	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4369	or die "addr2line: $!";
		4370
		4371	my @funcs;
		4372	my @res = <$fh>;
		4373	chomp for @res;
		4374	while (@res) {
		4375	my ($func, $line) = splice @res, 0, 2, ();
		4376	push @funcs, "[$func] $line";
		4377	}
		4378
		4379	@funcs
		4380	};
		4381
		4382	LOG llevInfo, "[ABT] $perl_bt\n";
		4383	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4384	LOG llevInfo, "[ABT] $_\n" for @bt;
		4385	--$_log_backtrace;
2625	};	4386	};
		4387	} else {
		4388	LOG llevInfo, "[ABT] $msg\n";
		4389	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2626	},	4390	}
2627	);	4391	}
		4392
		4393	# load additional modules
		4394	require "cf/$_.pm" for @EXTRA_MODULES;
		4395	cf::_connect_to_perl_2;
2628		4396
2629	END { cf::emergency_save }	4397	END { cf::emergency_save }
2630		4398
2631	1	4399	1
2632		4400

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