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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.174 by root, Sun Jan 14 19:55:37 2007 UTC vs.
Revision 1.578 by root, Wed Jan 4 02:48:57 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 Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98
49	our $AIO_POLL_WATCHER;	99	our $DATADIR = datadir;
50	our $WRITE_RUNTIME_WATCHER;	100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	#our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
52	our $NOW;	138	our $NOW;
53		139
54	our %CFG;	140	our (%PLAYER, %PLAYER_LOADING); # all users
55		141	our (%MAP, %MAP_LOADING ); # all maps
56	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;
58
59	our %PLAYER; # all users
60	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	142	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		143
67	# used to convert map paths into valid unix filenames by replacing / by ∕	144	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		146
		147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		148	our $LOADAVG; # same thing, but with alpha-smoothing
		149	our $JITTER; # average jitter
		150	our $TICK_START; # for load detecting purposes
		151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
		159
70	binmode STDOUT;	160	binmode STDOUT;
71	binmode STDERR;	161	binmode STDERR;
72		162
73	# read virtual server time, if available	163	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
78	}	168	}
79		169
80	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	171
82	mkdir cf::localdir . "/" . cf::tmpdir;	172	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		174
86	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
87		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
88	#############################################################################	183	#############################################################################
89		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
90	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
91		197
92	=over 4	198	=over 4
93		199
94	=item $cf::UPTIME	200	=item $cf::UPTIME
95		201
96	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
97		218
98	=item $cf::RUNTIME	219	=item $cf::RUNTIME
99		220
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	222	every server tick.
102		223
103	=item $cf::LIBDIR	224	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		225	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		226	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		227
105	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		230	unique-items directory, player file directory, random maps directory and
		231	database environment.
107		232
		233	=item $cf::LOADAVG
		234
		235	The current CPU load on the server (alpha-smoothed), as a value between 0
		236	(none) and 1 (overloaded), indicating how much time is spent on processing
		237	objects per tick. Healthy values are < 0.5.
		238
108	=item $cf::NOW	239	=item $cf::LOAD
109		240
110	The time of the last (current) server tick.	241	The raw value load value from the last tick.
111
112	=item $cf::TICK
113
114	The interval between server ticks, in seconds.
115		242
116	=item %cf::CFG	243	=item %cf::CFG
117		244
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	246	from wherever your confdir points to.
120		247
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	248	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		249
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	251	returns directly I<after> the tick processing (and consequently, can only wake one thread
125	processing has been done. Call C<< ->wait >> on them to maximise the	252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
127		282
128	=back	283	=back
129		284
130	=cut	285	=cut
131		286
132	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
133	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
134	my $msg = join "", @_;	294	my $msg = join "", @_;
135	utf8::encode $msg;
136		295
137	$msg .= "\n"	296	$msg .= "\n"
138	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
139		298
		299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		300
140	LOG llevError, $msg;	301	LOG llevWarn, $msg;
141	};	302	};
142	}	303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
143		317
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	322	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		323	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	324	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		325
151	# we bless all objects into (empty) derived classes to force a method lookup	326	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	327	# within the Safe compartment.
153	for my $pkg (qw(	328	for my $pkg (qw(
154	cf::global cf::attachable	329	cf::global cf::attachable
155	cf::object cf::object::player	330	cf::object cf::object::player
156	cf::client cf::player	331	cf::client cf::player
157	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
158	cf::map cf::party cf::region	334	cf::party cf::region
159	)) {	335	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	337	}
163		338
164	$Event::DIED = sub {	339	$EV::DIED = sub {
165	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
166	};	341	};
		342
		343	#############################################################################
		344
		345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
167		349
168	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
169		351
170	=over 4	352	=over 4
171		353
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	373	$d
192	} || "[unable to dump $_[0]: '$@']";	374	} || "[unable to dump $_[0]: '$@']";
193	}	375	}
194		376
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	377	=item $scalar = load_file $path
196		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
197	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
198		392
199	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
200		394
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	395	=item $json = cf::encode_json $ref
209		396
210	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
211		398
212	=cut	399	=cut
213		400
214	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	402
216	JSON::Syck::Dump $_[0]	403	sub encode_json($) { $json_coder->encode ($_[0]) }
		404	sub decode_json($) { $json_coder->decode ($_[0]) }
		405
		406	=item $ref = cf::decode_storable $scalar
		407
		408	Same as Coro::Storable::thaw, so blocks.
		409
		410	=cut
		411
		412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		413
		414	=item $ref = cf::decode_yaml $scalar
		415
		416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		417
		418	=cut
		419
		420	sub decode_yaml($) {
		421	fork_call { YAML::XS::Load $_[0] } @_
		422	}
		423
		424	=item $scalar = cf::unlzf $scalar
		425
		426	Same as Compress::LZF::compress, but takes server ticks into account, so
		427	blocks.
		428
		429	=cut
		430
		431	sub unlzf($) {
		432	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		433	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		434	Compress::LZF::decompress $_[0]
		435	}
		436
		437	=item cf::post_init { BLOCK }
		438
		439	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		440	but I<before> the server starts ticking again.
		441
		442	The codeblock will have a single boolean argument to indicate whether this
		443	is a reload or not.
		444
		445	=cut
		446
		447	sub post_init(&) {
		448	push @POST_INIT, shift;
		449	}
		450
		451	sub _post_init {
		452	trace "running post_init jobs";
		453
		454	# run them in parallel...
		455
		456	my @join;
		457
		458	while () {
		459	push @join, map &Coro::async ($_, 0), @POST_INIT;
		460	@POST_INIT = ();
		461
		462	@join or last;
		463
		464	(pop @join)->join;
		465	}
217	}	466	}
218		467
219	=item cf::lock_wait $string	468	=item cf::lock_wait $string
220		469
221	Wait until the given lock is available. See cf::lock_acquire.	470	Wait until the given lock is available. See cf::lock_acquire.
222		471
223	=item my $lock = cf::lock_acquire $string	472	=item my $lock = cf::lock_acquire $string
224		473
225	Wait until the given lock is available and then acquires it and returns	474	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	475	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	476	for example when the coroutine gets canceled), the lock is automatically
228	returned.	477	returned.
229		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
230	Lock names should begin with a unique identifier (for example, cf::map::find	482	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	483	uses map_find and cf::map::load uses map_load).
232		484
233	=cut	485	=item $locked = cf::lock_active $string
234		486
235	our %LOCK;	487	Return true if the lock is currently active, i.e. somebody has locked it.
		488
		489	=cut
		490
		491	our $LOCKS = new Coro::SemaphoreSet;
236		492
237	sub lock_wait($) {	493	sub lock_wait($) {
238	my ($key) = @_;	494	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	495	}
246		496
247	sub lock_acquire($) {	497	sub lock_acquire($) {
248	my ($key) = @_;	498	$LOCKS->guard ($_[0])
		499	}
249		500
250	# wait, to be sure we are not locked	501	sub lock_active($) {
251	lock_wait $key;	502	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	503	}
260		504
261	sub freeze_mainloop {	505	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	506	tick_inhibit_inc;
263		507
264	my $guard = Coro::guard {	508	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	509	}
266	$WRITE_RUNTIME_WATCHER->start;	510
		511	=item cf::periodic $interval, $cb
		512
		513	Like EV::periodic, but randomly selects a starting point so that the actions
		514	get spread over time.
		515
		516	=cut
		517
		518	sub periodic($$) {
		519	my ($interval, $cb) = @_;
		520
		521	my $start = rand List::Util::min 180, $interval;
		522
		523	EV::periodic $start, $interval, 0, $cb
		524	}
		525
		526	=item cf::get_slot $time[, $priority[, $name]]
		527
		528	Allocate $time seconds of blocking CPU time at priority C<$priority>
		529	(default: 0): This call blocks and returns only when you have at least
		530	C<$time> seconds of cpu time till the next tick. The slot is only valid
		531	till the next cede.
		532
		533	Background jobs should use a priority les than zero, interactive jobs
		534	should use 100 or more.
		535
		536	The optional C<$name> can be used to identify the job to run. It might be
		537	used for statistical purposes and should identify the same time-class.
		538
		539	Useful for short background jobs.
		540
		541	=cut
		542
		543	our @SLOT_QUEUE;
		544	our $SLOT_QUEUE;
		545	our $SLOT_DECAY = 0.9;
		546
		547	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		548	$SLOT_QUEUE = Coro::async {
		549	$Coro::current->desc ("timeslot manager");
		550
		551	my $signal = new Coro::Signal;
		552	my $busy;
		553
		554	while () {
		555	next_job:
		556
		557	my $avail = cf::till_tick;
		558
		559	for (0 .. $#SLOT_QUEUE) {
		560	if ($SLOT_QUEUE[$_][0] <= $avail) {
		561	$busy = 0;
		562	my $job = splice @SLOT_QUEUE, $_, 1, ();
		563	$job->[2]->send;
		564	Coro::cede;
		565	goto next_job;
		566	} else {
		567	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		568	}
		569	}
		570
		571	if (@SLOT_QUEUE) {
		572	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		573	$WAIT_FOR_TICK->wait;
		574	} else {
		575	$busy = 0;
		576	Coro::schedule;
		577	}
267	};	578	}
268	$WRITE_RUNTIME_WATCHER->stop;	579	};
269	$TICK_WATCHER->stop;	580
270	$guard	581	sub get_slot($;$$) {
		582	return if tick_inhibit || $Coro::current == $Coro::main;
		583
		584	my ($time, $pri, $name) = @_;
		585
		586	$time = clamp $time, 0.01, $TICK * .6;
		587
		588	my $sig = new Coro::Signal;
		589
		590	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		591	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		592	$SLOT_QUEUE->ready;
		593	$sig->wait;
271	}	594	}
272		595
273	=item cf::async { BLOCK }	596	=item cf::async { BLOCK }
274		597
275	Currently the same as Coro::async_pool, meaning you cannot use	598	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		603
281	BEGIN { *async = \&Coro::async_pool }	604	BEGIN { *async = \&Coro::async_pool }
282		605
283	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
284		607
285	The design of crossfire+ requires that the main coro ($Coro::main) is	608	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	609	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	610	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		611	acceptable.
288		612
289	If it must be done, put the blocking parts into C<sync_job>. This will run	613	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	614	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	615	server will be frozen during this time, so the block should either finish
292	fast or be very important.	616	fast or be very important.
…		…
294	=cut	618	=cut
295		619
296	sub sync_job(&) {	620	sub sync_job(&) {
297	my ($job) = @_;	621	my ($job) = @_;
298		622
299	if ($Coro::current == $Coro::main) {	623	if (in_main) {
		624	my $time = AE::time;
		625
300	# this is the main coro, too bad, we have to block	626	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	627	# till the operation succeeds, freezing the server :/
302		628
303	# TODO: use suspend/resume instead	629	#LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	630
305	my $freeze_guard = freeze_mainloop;	631	my $freeze_guard = freeze_mainloop;
306		632
307	my $busy = 1;	633	my $busy = 1;
308	my @res;	634	my @res;
309		635
310	(async {	636	(async {
		637	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	638	@res = eval { $job->() };
312	warn $@ if $@;	639	error $@ if $@;
313	undef $busy;	640	undef $busy;
314	})->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
315		642
316	while ($busy) {	643	while ($busy) {
317	Coro::cede or Event::one_event;	644	if (Coro::nready) {
		645	Coro::cede_notself;
		646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
318	}	648	}
		649	}
		650
		651	my $time = AE::time - $time;
		652
		653	$TICK_START += $time; # do not account sync jobs to server load
319		654
320	wantarray ? @res : $res[0]	655	wantarray ? @res : $res[0]
321	} else {	656	} else {
322	# we are in another coroutine, how wonderful, everything just works	657	# we are in another coroutine, how wonderful, everything just works
323		658
…		…
343	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
344		679
345	$coro	680	$coro
346	}	681	}
347		682
348	sub write_runtime {	683	=item fork_call { }, @args
349	my $runtime = cf::localdir . "/runtime";
350		684
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	685	Executes the given code block with the given arguments in a seperate
352	or return;	686	process, returning the results. Everything must be serialisable with
		687	Coro::Storable. May, of course, block. Note that the executed sub may
		688	never block itself or use any form of event handling.
353		689
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	690	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		691
358	aio_fsync $fh	692	sub post_fork {
359	and return;	693	reset_signals;
		694	}
360		695
361	close $fh	696	sub fork_call(&@) {
362	or return;	697	my ($cb, @args) = @_;
363		698
364	aio_rename "$runtime~", $runtime	699	# we seemingly have to make a local copy of the whole thing,
365	and return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
366		702
		703	my @res = Coro::Util::fork_eval {
		704	cf::post_fork;
		705	&$cb
		706	} @args;
		707
		708	wantarray ? @res : $res[-1]
		709	}
		710
		711	sub objinfo {
367	1	712	(
		713	"counter value" => cf::object::object_count,
		714	"objects created" => cf::object::create_count,
		715	"objects destroyed" => cf::object::destroy_count,
		716	"freelist size" => cf::object::free_count,
		717	"allocated objects" => cf::object::objects_size,
		718	"active objects" => cf::object::actives_size,
		719	)
		720	}
		721
		722	=item $coin = coin_from_name $name
		723
		724	=cut
		725
		726	our %coin_alias = (
		727	"silver" => "silvercoin",
		728	"silvercoin" => "silvercoin",
		729	"silvercoins" => "silvercoin",
		730	"gold" => "goldcoin",
		731	"goldcoin" => "goldcoin",
		732	"goldcoins" => "goldcoin",
		733	"platinum" => "platinacoin",
		734	"platinumcoin" => "platinacoin",
		735	"platinumcoins" => "platinacoin",
		736	"platina" => "platinacoin",
		737	"platinacoin" => "platinacoin",
		738	"platinacoins" => "platinacoin",
		739	"royalty" => "royalty",
		740	"royalties" => "royalty",
		741	);
		742
		743	sub coin_from_name($) {
		744	$coin_alias{$_[0]}
		745	? cf::arch::find $coin_alias{$_[0]}
		746	: undef
		747	}
		748
		749	=item $value = cf::db_get $family => $key
		750
		751	Returns a single value from the environment database.
		752
		753	=item cf::db_put $family => $key => $value
		754
		755	Stores the given C<$value> in the family. It can currently store binary
		756	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		757
		758	=item $db = cf::db_table "name"
		759
		760	Create and/or open a new database table. The string must not be "db" and must be unique
		761	within each server.
		762
		763	=cut
		764
		765	sub db_table($) {
		766	cf::error "db_get called from main context"
		767	if $Coro::current == $Coro::main;
		768
		769	my ($name) = @_;
		770	my $db = BDB::db_create $DB_ENV;
		771
		772	eval {
		773	$db->set_flags (BDB::CHKSUM);
		774
		775	utf8::encode $name;
		776	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		777	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		778	cf::cleanup "db_open(db): $!" if $!;
		779	};
		780	cf::cleanup "db_open(db): $@" if $@;
		781
		782	$db
		783	}
		784
		785	our $DB;
		786
		787	sub db_init {
		788	$DB ||= db_table "db";
		789	}
		790
		791	sub db_get($$) {
		792	my $key = "$_[0]/$_[1]";
		793
		794	cf::error "db_get called from main context"
		795	if $Coro::current == $Coro::main;
		796
		797	BDB::db_get $DB, undef, $key, my $data;
		798
		799	$! ? ()
		800	: $data
		801	}
		802
		803	sub db_put($$$) {
		804	BDB::dbreq_pri 4;
		805	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		806	}
		807
		808	=item cf::cache $id => [$paths...], $processversion => $process
		809
		810	Generic caching function that returns the value of the resource $id,
		811	caching and regenerating as required.
		812
		813	This function can block.
		814
		815	=cut
		816
		817	sub cache {
		818	my ($id, $src, $processversion, $process) = @_;
		819
		820	my $meta =
		821	join "\x00",
		822	$processversion,
		823	map {
		824	aio_stat $_
		825	and Carp::croak "$_: $!";
		826
		827	($_, (stat _)[7,9])
		828	} @$src;
		829
		830	my $dbmeta = db_get cache => "$id/meta";
		831	if ($dbmeta ne $meta) {
		832	# changed, we may need to process
		833
		834	my @data;
		835	my $md5;
		836
		837	for (0 .. $#$src) {
		838	$data[$_] = load_file $src->[$_];
		839	}
		840
		841	# if processing is expensive, check
		842	# checksum first
		843	if (1) {
		844	$md5 =
		845	join "\x00",
		846	$processversion,
		847	map {
		848	cf::cede_to_tick;
		849	($src->[$_], Digest::MD5::md5_hex $data[$_])
		850	} 0.. $#$src;
		851
		852
		853	my $dbmd5 = db_get cache => "$id/md5";
		854	if ($dbmd5 eq $md5) {
		855	db_put cache => "$id/meta", $meta;
		856
		857	return db_get cache => "$id/data";
		858	}
		859	}
		860
		861	my $t1 = Time::HiRes::time;
		862	my $data = $process->(\@data);
		863	my $t2 = Time::HiRes::time;
		864
		865	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		866
		867	db_put cache => "$id/data", $data;
		868	db_put cache => "$id/md5" , $md5;
		869	db_put cache => "$id/meta", $meta;
		870
		871	return $data;
		872	}
		873
		874	db_get cache => "$id/data"
		875	}
		876
		877	=item cf::datalog type => key => value, ...
		878
		879	Log a datalog packet of the given type with the given key-value pairs.
		880
		881	=cut
		882
		883	sub datalog($@) {
		884	my ($type, %kv) = @_;
		885	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	886	}
369		887
370	=back	888	=back
371		889
372	=cut	890	=cut
373		891
374	#############################################################################	892	#############################################################################
375		893
376	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
377		895
378	Many objects in crossfire are so-called attachable objects. That means you can	896	Many objects in deliantra are so-called attachable objects. That means you can
379	attach callbacks/event handlers (a collection of which is called an "attachment")	897	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
381		899
382	In the following description, CLASS can be any of C<global>, C<object>	900	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	901	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	902	Deliantra).
385		903
386	=over 4	904	=over 4
387		905
388	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
389		907
…		…
433	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
434		952
435	Register an attachment by C<$name> through which attachable objects of the	953	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
437		955
438	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
439	that are attached at load/instantiate time, thus the need for a name.	957	that are attached at load/instantiate time, thus the need for a name.
440		958
441	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
442		960
443	=over 4	961	=over 4
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
553		1071
554	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		1076
559	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
561		1079
562	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
567		1085
568	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
569	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
570		1088
571	} elsif (ref $type) {	1089	} elsif (ref $type) {
572	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
573		1091
574	} else {	1092	} else {
575	shift @arg;	1093	shift @arg;
576	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
577	}	1095	}
578	}	1096	}
579	}	1097	}
580		1098
581	sub _object_attach {	1099	sub _object_attach {
…		…
591	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
592	}	1110	}
593		1111
594	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
595	} else {	1113	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
597	}	1115	}
598		1116
599	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
600	}	1118	}
601		1119
…		…
603	if (ref $_[0]) {	1121	if (ref $_[0]) {
604	_object_attach @_;	1122	_object_attach @_;
605	} else {	1123	} else {
606	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
607	}	1125	}
		1126	_recalc_want;
608	};	1127	};
609		1128
610	# all those should be optimised	1129	# all those should be optimised
611	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
616	reattach ($obj);	1135	reattach ($obj);
617	} else {	1136	} else {
618	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
619	}	1138	}
		1139	_recalc_want;
620	};	1140	};
621		1141
622	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
624		1144
…		…
639	";	1159	";
640	die if $@;	1160	die if $@;
641	}	1161	}
642		1162
643	our $override;	1163	our $override;
644	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1164	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
645		1165
646	sub override {	1166	sub override {
647	$override = 1;	1167	$override = 1;
648	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
649	}	1169	}
650		1170
651	sub do_invoke {	1171	sub do_invoke {
652	my $event = shift;	1172	my $event = shift;
653	my $callbacks = shift;	1173	my $callbacks = shift;
654		1174
655	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
656		1176
657	local $override;	1177	local $override;
658		1178
659	for (@$callbacks) {	1179	for (@$callbacks) {
660	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
661		1181
662	if ($@) {	1182	if ($@) {
663	warn "$@";
664	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
665	override;	1184	override;
666	}	1185	}
667		1186
668	return 1 if $override;	1187	return 1 if $override;
669	}	1188	}
670		1189
671	0	1190	0
672	}	1191	}
673		1192
674	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
675		1194
676	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
677		1196
678	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
679		1198
680	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1199	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
681	removed in future versions), and there is no public API to access override	1200	removed in future versions), and there is no public API to access override
682	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		1202
684	=back	1203	=back
685		1204
686	=cut	1205	=cut
687		1206
688	#############################################################################	1207	#############################################################################
689	# object support	1208	# object support
		1209
		1210	sub _object_equal($$);
		1211	sub _object_equal($$) {
		1212	my ($a, $b) = @_;
		1213
		1214	return 0 unless (ref $a) eq (ref $b);
		1215
		1216	if ("HASH" eq ref $a) {
		1217	my @ka = keys %$a;
		1218	my @kb = keys %$b;
		1219
		1220	return 0 if @ka != @kb;
		1221
		1222	for (0 .. $#ka) {
		1223	return 0 unless $ka[$_] eq $kb[$_];
		1224	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1225	}
		1226
		1227	} elsif ("ARRAY" eq ref $a) {
		1228
		1229	return 0 if @$a != @$b;
		1230
		1231	for (0 .. $#$a) {
		1232	return 0 unless _object_equal $a->[$_], $b->[$_];
		1233	}
		1234
		1235	} elsif ($a ne $b) {
		1236	return 0;
		1237	}
		1238
		1239	1
		1240	}
		1241
		1242	our $SLOW_MERGES;#d#
		1243	sub _can_merge {
		1244	my ($ob1, $ob2) = @_;
		1245
		1246	++$SLOW_MERGES;#d#
		1247
		1248	# we do the slow way here
		1249	return _object_equal $ob1, $ob2
		1250	}
690		1251
691	sub reattach {	1252	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	1254	my ($obj) = @_;
694		1255
		1256	# no longer needed after getting rid of delete_package?
695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1257	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
696		1258
697	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
698		1260
699	@$registry = ();	1261	@$registry = ();
700		1262
…		…
705	for (@$attach) {	1267	for (@$attach) {
706	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
707	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
708	}	1270	}
709	} else {	1271	} else {
710	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
711	}	1273	}
712	}	1274	}
713	}	1275	}
714		1276
715	cf::attachable->attach (	1277	cf::attachable->attach (
716	prio => -1000000,	1278	prio => -1000000,
717	on_instantiate => sub {	1279	on_instantiate => sub {
718	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
719		1281
720	$data = from_json $data;	1282	$data = decode_json $data;
721		1283
722	for (@$data) {	1284	for (@$data) {
723	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
724		1286
725	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
741	sub object_freezer_save {	1303	sub object_freezer_save {
742	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
743		1305
744	sync_job {	1306	sync_job {
745	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
746	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
747	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
748		1312
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1315	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1316	if ($cf::USE_FSYNC) {
		1317	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;
752	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
753	close $fh;	1320	aio_close $fh;
754		1321
755	if (@$objs) {	1322	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1323	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1326	aio_write $fh, 0, (length $data), $data, 0;
		1327	if ($cf::USE_FSYNC) {
		1328	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;
760	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
761	close $fh;	1331	aio_close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
763	}	1333	}
764	} else {	1334	} else {
765	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
766	}	1336	}
767		1337
768	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
769	} else {	1342	} else {
770	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
771	}	1344	}
772	} else {	1345	} else {
773	aio_unlink $filename;	1346	aio_unlink $filename;
774	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
775	}	1348	}
776	}	1349	};
777	}	1350	}
778		1351
779	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
780	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
781		1354
…		…
793	or return;	1366	or return;
794		1367
795	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
796	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
797	or return;	1370	or return;
		1371
798	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
799	}	1374	}
800		1375
		1376	utf8::decode (my $decname = $filename);
801	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
803	return ($data, $av);	1381	($data, $av)
804	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
805		1389
806	#############################################################################	1390	#############################################################################
807	# command handling &c	1391	# command handling &c
808		1392
809	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1407	}
824		1408
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1410
827	Register a callbackf ro execution when the client sends an extcmd packet.	1411	Register a callback for execution when the client sends an (synchronous)
		1412	extcmd packet. Ext commands will be processed in the order they are
		1413	received by the server, like other user commands. The first argument is
		1414	the logged-in player. Ext commands can only be processed after a player
		1415	has logged in successfully.
828		1416
829	If the callback returns something, it is sent back as if reply was being	1417	If the callback returns something, it is sent back as if reply was being
830	called.	1418	called.
831		1419
		1420	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1421
		1422	Register a callback for execution when the client sends an (asynchronous)
		1423	exticmd packet. Exti commands are processed by the server as soon as they
		1424	are received, i.e. out of order w.r.t. other commands. The first argument
		1425	is a client socket. Exti commands can be received anytime, even before
		1426	log-in.
		1427
		1428	If the callback returns something, it is sent back as if reply was being
		1429	called.
		1430
832	=cut	1431	=cut
833		1432
834	sub register_extcmd {	1433	sub register_extcmd {
835	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
836		1435
837	$EXTCMD{$name} = $cb;	1436	$EXTCMD{$name} = $cb;
838	}	1437	}
839		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
		1446
840	cf::player->attach (	1447	cf::player->attach (
841	on_command => sub {	1448	on_unknown_command => sub {
842	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
843		1450
844	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
845	or return;	1452	or return;
846		1453
…		…
851	cf::override;	1458	cf::override;
852	},	1459	},
853	on_extcmd => sub {	1460	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
855		1462
856	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1464
858	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1467
		1468	my @reply;
		1469
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1470	if (my $cb = $EXTCMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1471	@reply = $cb->($pl, @payload);
861	$pl->ext_reply ($msg->{msgid}, %reply);
862	}
863	}	1472	}
		1473
		1474	$pl->ext_reply ($reply, @reply)
		1475	if $reply;
		1476
864	} else {	1477	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1478	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1479	}
867		1480
868	cf::override;	1481	cf::override;
869	},	1482	},
870	);	1483	);
871		1484
		1485	# "readahead" all extensions
872	sub load_extension {	1486	sub cache_extensions {
873	my ($path) = @_;	1487	my $grp = IO::AIO::aio_group;
874		1488
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1489	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
876	my $base = $1;	1490	for (grep /\.ext$/, @{$_[0]}) {
877	my $pkg = $1;	1491	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}	1492	}
900	die $@;
901	}	1493	};
902		1494
903	push @EXTS, $pkg;	1495	$grp
904	}	1496	}
905		1497
906	sub load_extensions {	1498	sub load_extensions {
		1499	info "loading extensions...";
		1500
		1501	cf::sync_job {
		1502	my %todo;
		1503
907	for my $ext (<$LIBDIR/*.ext>) {	1504	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1505	next unless -r $path;
909	eval {	1506
910	load_extension $ext;	1507	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1508	my $base = $1;
		1509	my $pkg = $1;
		1510	$pkg =~ s/[^[:word:]]/_/g;
		1511	$pkg = "ext::$pkg";
		1512
		1513	open my $fh, "<:utf8", $path
		1514	or die "$path: $!";
		1515
		1516	my $source = do { local $/; <$fh> };
		1517
		1518	my %ext = (
		1519	path => $path,
		1520	base => $base,
		1521	pkg => $pkg,
		1522	);
		1523
		1524	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1525	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1526
		1527	$ext{source} =
		1528	"package $pkg; use common::sense;\n"
		1529	. "#line 1 \"$path\"\n{\n"
		1530	. $source
		1531	. "\n};\n1";
		1532
		1533	$todo{$base} = \%ext;
		1534	}
		1535
		1536	my $pass = 0;
		1537	my %done;
		1538	while (%todo) {
		1539	my $progress;
		1540
		1541	++$pass;
		1542
		1543	ext:
		1544	while (my ($k, $v) = each %todo) {
		1545	for (split /,\s*/, $v->{meta}{depends}) {
		1546	next ext
		1547	unless exists $done{$_};
		1548	}
		1549
		1550	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1551
		1552	my $active = eval $v->{source};
		1553
		1554	if (length $@) {
		1555	error "$v->{path}: $@\n";
		1556
		1557	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559
		1560	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1561	delete $todo{$k};
		1562	} else {
		1563	$done{$k} = delete $todo{$k};
		1564	push @EXTS, $v->{pkg};
		1565	$progress = 1;
		1566
		1567	info "$v->{base}: extension inactive.\n"
		1568	unless $active;
		1569	}
911	1	1570	}
912	} or warn "$ext not loaded: $@";	1571
		1572	unless ($progress) {
		1573	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1574
		1575	while (my ($k, $v) = each %todo) {
		1576	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1577	if exists $v->{meta}{mandatory};
		1578	}
		1579
		1580	last;
		1581	}
		1582	}
913	}	1583	};
914	}	1584	}
915		1585
916	#############################################################################	1586	#############################################################################
917		1587
		1588	=back
		1589
918	=head2 CORE EXTENSIONS	1590	=head2 CORE EXTENSIONS
919		1591
920	Functions and methods that extend core crossfire objects.	1592	Functions and methods that extend core deliantra objects.
921		1593
922	=cut	1594	=cut
923		1595
924	package cf::player;	1596	package cf::player;
925		1597
…		…
927		1599
928	=head3 cf::player	1600	=head3 cf::player
929		1601
930	=over 4	1602	=over 4
931		1603
		1604	=item cf::player::num_playing
		1605
		1606	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1607
		1608	=cut
		1609
		1610	sub num_playing {
		1611	scalar grep
		1612	$_->ob->map
		1613	&& !$_->hidden
		1614	&& !$_->ob->flag (cf::FLAG_WIZ),
		1615	cf::player::list
		1616	}
		1617
932	=item cf::player::find $login	1618	=item cf::player::find $login
933		1619
934	Returns the given player object, loading it if necessary (might block).	1620	Returns the given player object, loading it if necessary (might block).
935		1621
936	=cut	1622	=cut
937		1623
938	sub playerdir($) {	1624	sub playerdir($) {
939	cf::localdir	1625	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1626	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1627	}
945		1628
946	sub path($) {	1629	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1630	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1631
949	(playerdir $login) . "/$login.pl"	1632	(playerdir $login) . "/playerdata"
950	}	1633	}
951		1634
952	sub find_active($) {	1635	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1636	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1637	and $cf::PLAYER{$_[0]}->active
…		…
957		1640
958	sub exists($) {	1641	sub exists($) {
959	my ($login) = @_;	1642	my ($login) = @_;
960		1643
961	$cf::PLAYER{$login}	1644	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1645	or !aio_stat path $login
963	}	1646	}
964		1647
965	sub find($) {	1648	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1649	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1650	my $login = $_[0];
968		1651
969	my $guard = cf::lock_acquire "user_find:$login";	1652	my $guard = cf::lock_acquire "user_find:$login";
970		1653
971	$cf::PLAYER{$_[0]} || do {	1654	$cf::PLAYER{$_[0]} || do {
972	my $pl = load_pl path $login	1655	# rename old playerfiles to new ones
		1656	#TODO: remove when no longer required
		1657	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1658	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1659	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1660	aio_unlink +(playerdir $login) . "/$login.pl";
		1661
		1662	my $f = new_from_file cf::object::thawer path $login
973	or return;	1663	or return;
		1664
		1665	my $pl = cf::player::load_pl $f
		1666	or return;
		1667
		1668	local $cf::PLAYER_LOADING{$login} = $pl;
		1669	$f->resolve_delayed_derefs;
974	$cf::PLAYER{$login} = $pl	1670	$cf::PLAYER{$login} = $pl
975	}	1671	}
976	}	1672	}
977	}	1673	}
		1674
		1675	cf::player->attach (
		1676	on_load => sub {
		1677	my ($pl, $path) = @_;
		1678
		1679	# restore slots saved in save, below
		1680	my $slots = delete $pl->{_slots};
		1681
		1682	$pl->ob->current_weapon ($slots->[0]);
		1683	$pl->combat_ob ($slots->[1]);
		1684	$pl->ranged_ob ($slots->[2]);
		1685	},
		1686	);
978		1687
979	sub save($) {	1688	sub save($) {
980	my ($pl) = @_;	1689	my ($pl) = @_;
981		1690
982	return if $pl->{deny_save};	1691	return if $pl->{deny_save};
…		…
987	return if $pl->{deny_save};	1696	return if $pl->{deny_save};
988		1697
989	aio_mkdir playerdir $pl, 0770;	1698	aio_mkdir playerdir $pl, 0770;
990	$pl->{last_save} = $cf::RUNTIME;	1699	$pl->{last_save} = $cf::RUNTIME;
991		1700
		1701	cf::get_slot 0.01;
		1702
		1703	# save slots, to be restored later
		1704	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1705
992	$pl->save_pl ($path);	1706	$pl->save_pl ($path);
993	Coro::cede;	1707	cf::cede_to_tick;
994	}	1708	}
995		1709
996	sub new($) {	1710	sub new($) {
997	my ($login) = @_;	1711	my ($login) = @_;
998		1712
…		…
1004	$cf::PLAYER{$login} = $self;	1718	$cf::PLAYER{$login} = $self;
1005		1719
1006	$self	1720	$self
1007	}	1721	}
1008		1722
		1723	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1724
		1725	=cut
		1726
		1727	sub send_msg {
		1728	my $ns = shift->ns
		1729	or return;
		1730	$ns->send_msg (@_);
		1731	}
		1732
1009	=item $pl->quit_character	1733	=item $pl->quit_character
1010		1734
1011	Nukes the player without looking back. If logged in, the connection will	1735	Nukes the player without looking back. If logged in, the connection will
1012	be destroyed. May block for a long time.	1736	be destroyed. May block for a long time.
1013		1737
1014	=cut	1738	=cut
1015		1739
1016	sub quit_character {	1740	sub quit_character {
1017	my ($pl) = @_;	1741	my ($pl) = @_;
1018		1742
		1743	my $name = $pl->ob->name;
		1744
1019	$pl->{deny_save} = 1;	1745	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1746	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1021		1747
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1748	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1023	$pl->deactivate;	1749	$pl->deactivate;
		1750
		1751	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1752	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1753	ext::highscore::check ($pl->ob);
		1754
1025	$pl->ns->destroy if $pl->ns;	1755	$pl->ns->destroy if $pl->ns;
1026		1756
1027	my $path = playerdir $pl;	1757	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1758	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1759	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1760	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1761	$pl->destroy;
		1762
		1763	my $prefix = qr<^~\Q$name\E/>;
		1764
		1765	# nuke player maps
		1766	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1767
1032	IO::AIO::aio_rmtree $temp;	1768	IO::AIO::aio_rmtree $temp;
		1769	}
		1770
		1771	=item $pl->kick
		1772
		1773	Kicks a player out of the game. This destroys the connection.
		1774
		1775	=cut
		1776
		1777	sub kick {
		1778	my ($pl, $kicker) = @_;
		1779
		1780	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1781	$pl->killer ("kicked");
		1782	$pl->ns->destroy;
1033	}	1783	}
1034		1784
1035	=item cf::player::list_logins	1785	=item cf::player::list_logins
1036		1786
1037	Returns am arrayref of all valid playernames in the system, can take a	1787	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1788	while and may block, so not sync_job-capable, ever.
1039		1789
1040	=cut	1790	=cut
1041		1791
1042	sub list_logins {	1792	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1793	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1794	or return [];
1045		1795
1046	my @logins;	1796	my @logins;
1047		1797
1048	for my $login (@$dirs) {	1798	for my $login (@$dirs) {
		1799	my $path = path $login;
		1800
		1801	# a .pst is a dead give-away for a valid player
		1802	# if no pst file found, open and chekc for blocked users
		1803	if (aio_stat "$path.pst") {
1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1804	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1050	aio_read $fh, 0, 512, my $buf, 0 or next;	1805	aio_read $fh, 0, 512, my $buf, 0 or next;
1051	$buf !~ /^password -------------$/m or next; # official not-valid tag	1806	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1807	}
1052		1808
1053	utf8::decode $login;	1809	utf8::decode $login;
1054	push @logins, $login;	1810	push @logins, $login;
1055	}	1811	}
1056		1812
1057	\@logins	1813	\@logins
1058	}	1814	}
1059		1815
1060	=item $player->maps	1816	=item $player->maps
1061		1817
		1818	=item cf::player::maps $login
		1819
1062	Returns an arrayref of map paths that are private for this	1820	Returns an arrayref of map paths that are private for this
1063	player. May block.	1821	player. May block.
1064		1822
1065	=cut	1823	=cut
1066		1824
1067	sub maps($) {	1825	sub maps($) {
1068	my ($pl) = @_;	1826	my ($pl) = @_;
		1827
		1828	$pl = ref $pl ? $pl->ob->name : $pl;
1069		1829
1070	my $files = aio_readdir playerdir $pl	1830	my $files = aio_readdir playerdir $pl
1071	or return;	1831	or return;
1072		1832
1073	my @paths;	1833	my @paths;
…		…
1075	for (@$files) {	1835	for (@$files) {
1076	utf8::decode $_;	1836	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1837	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1838	next unless /^$PATH_SEP/o;
1079		1839
1080	s/\.map$//;	1840	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1841	}
1083		1842
1084	\@paths	1843	\@paths
1085	}	1844	}
1086		1845
		1846	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1847
		1848	Expand deliantra pod fragments into protocol xml.
		1849
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1850	=item $player->ext_reply ($msgid, @msg)
1088		1851
1089	Sends an ext reply to the player.	1852	Sends an ext reply to the player.
1090		1853
1091	=cut	1854	=cut
1092		1855
1093	sub ext_reply($$$%) {	1856	sub ext_reply($$@) {
1094	my ($self, $id, %msg) = @_;	1857	my ($self, $id, @msg) = @_;
1095		1858
1096	$msg{msgid} = $id;	1859	$self->ns->ext_reply ($id, @msg)
1097
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1860	}
1100		1861
1101	package cf;	1862	=item $player->ext_msg ($type, @msg)
		1863
		1864	Sends an ext event to the client.
		1865
		1866	=cut
		1867
		1868	sub ext_msg($$@) {
		1869	my ($self, $type, @msg) = @_;
		1870
		1871	$self->ns->ext_msg ($type, @msg);
		1872	}
		1873
		1874	=head3 cf::region
		1875
		1876	=over 4
		1877
		1878	=cut
		1879
		1880	package cf::region;
		1881
		1882	=item cf::region::find_by_path $path
		1883
		1884	Tries to decuce the likely region for a map knowing only its path.
		1885
		1886	=cut
		1887
		1888	sub find_by_path($) {
		1889	my ($path) = @_;
		1890
		1891	$path =~ s/^~[^\/]*//; # skip ~login
		1892
		1893	my ($match, $specificity);
		1894
		1895	for my $region (list) {
		1896	if ($region->{match} && $path =~ $region->{match}) {
		1897	($match, $specificity) = ($region, $region->specificity)
		1898	if $region->specificity > $specificity;
		1899	}
		1900	}
		1901
		1902	$match
		1903	}
1102		1904
1103	=back	1905	=back
1104
1105		1906
1106	=head3 cf::map	1907	=head3 cf::map
1107		1908
1108	=over 4	1909	=over 4
1109		1910
…		…
1122	our $DEFAULT_RESET = 3000;	1923	our $DEFAULT_RESET = 3000;
1123		1924
1124	sub generate_random_map {	1925	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1926	my ($self, $rmp) = @_;
1126		1927
1127	# mit "rum" bekleckern, nicht	1928	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1929
1128	$self->_create_random_map (	1930	$self->_create_random_map ($rmp);
1129	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1131	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1132	$rmp->{exit_on_final_map},
1133	$rmp->{xsize}, $rmp->{ysize},
1134	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1135	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1136	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1137	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1138	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1139	(cf::region::find $rmp->{region}), $rmp->{custom}
1140	)
1141	}	1931	}
		1932
		1933	=item cf::map->register ($regex, $prio)
		1934
		1935	Register a handler for the map path matching the given regex at the
		1936	givne priority (higher is better, built-in handlers have priority 0, the
		1937	default).
		1938
		1939	=cut
1142		1940
1143	sub register {	1941	sub register {
1144	my (undef, $regex) = @_;	1942	my (undef, $regex, $prio) = @_;
1145	my $pkg = caller;	1943	my $pkg = caller;
1146		1944
1147	no strict;
1148	push @{"$pkg\::ISA"}, __PACKAGE__;	1945	push @{"$pkg\::ISA"}, __PACKAGE__;
1149		1946
1150	$EXT_MAP{$pkg} = qr<$regex>;	1947	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1151	}	1948	}
1152		1949
1153	# also paths starting with '/'	1950	# also paths starting with '/'
1154	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1951	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1155		1952
1156	sub thawer_merge {	1953	sub thawer_merge {
1157	my ($self, $merge) = @_;	1954	my ($self, $merge) = @_;
1158		1955
1159	# we have to keep some variables in memory intact	1956	# we have to keep some variables in memory intact
1160	local $self->{path};	1957	local $self->{path};
1161	local $self->{load_path};	1958	local $self->{load_path};
1162	local $self->{deny_save};
1163	local $self->{deny_reset};
1164		1959
1165	$self->SUPER::thawer_merge ($merge);	1960	$self->SUPER::thawer_merge ($merge);
1166	}	1961	}
1167		1962
1168	sub normalise {	1963	sub normalise {
1169	my ($path, $base) = @_;	1964	my ($path, $base) = @_;
		1965
		1966	$path = "$path"; # make sure it's a string
		1967
		1968	$path =~ s/\.map$//;
1170		1969
1171	# map plan:	1970	# map plan:
1172	#	1971	#
1173	# /! non-realised random map exit (special hack!)	1972	# /! non-realised random map exit (special hack!)
1174	# {... are special paths that are not being touched	1973	# {... are special paths that are not being touched
…		…
1187	$base =~ s{[^/]+/?$}{};	1986	$base =~ s{[^/]+/?$}{};
1188	$path = "$base/$path";	1987	$path = "$base/$path";
1189	}	1988	}
1190		1989
1191	for ($path) {	1990	for ($path) {
1192	redo if s{//}{/};
1193	redo if s{/\.?/}{/};	1991	redo if s{/\.?/}{/};
1194	redo if s{/[^/]+/\.\./}{/};	1992	redo if s{/[^/]+/\.\./}{/};
1195	}	1993	}
1196		1994
1197	$path	1995	$path
…		…
1202		2000
1203	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	2001	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1204		2002
1205	$path = normalise $path, $base;	2003	$path = normalise $path, $base;
1206		2004
1207	for my $pkg (keys %EXT_MAP) {	2005	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1208	if ($path =~ $EXT_MAP{$pkg}) {	2006	if ($path =~ $EXT_MAP{$pkg}[1]) {
1209	my $self = bless cf::map::new, $pkg;	2007	my $self = bless cf::map::new, $pkg;
1210	$self->{path} = $path; $self->path ($path);	2008	$self->{path} = $path; $self->path ($path);
1211	$self->init; # pass $1 etc.	2009	$self->init; # pass $1 etc.
1212	return $self;	2010	return $self;
1213	}	2011	}
1214	}	2012	}
1215		2013
1216	Carp::carp "unable to resolve path '$path'.";	2014	Carp::cluck "unable to resolve path '$path' (base '$base')";
1217	()	2015	()
1218	}	2016	}
1219		2017
		2018	# may re-bless or do other evil things
1220	sub init {	2019	sub init {
1221	my ($self) = @_;	2020	my ($self) = @_;
1222		2021
1223	$self	2022	$self
1224	}	2023	}
…		…
1236		2035
1237	# the original (read-only) location	2036	# the original (read-only) location
1238	sub load_path {	2037	sub load_path {
1239	my ($self) = @_;	2038	my ($self) = @_;
1240		2039
1241	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2040	"$MAPDIR/$self->{path}.map"
1242	}	2041	}
1243		2042
1244	# the temporary/swap location	2043	# the temporary/swap location
1245	sub save_path {	2044	sub save_path {
1246	my ($self) = @_;	2045	my ($self) = @_;
1247		2046
1248	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2047	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1249	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2048	"$TMPDIR/$path.map"
1250	}	2049	}
1251		2050
1252	# the unique path, undef == no special unique path	2051	# the unique path, undef == no special unique path
1253	sub uniq_path {	2052	sub uniq_path {
1254	my ($self) = @_;	2053	my ($self) = @_;
1255		2054
1256	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2055	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1257	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2056	"$UNIQUEDIR/$path"
1258	}	2057	}
1259		2058
1260	# and all this just because we cannot iterate over	2059	sub decay_objects {
1261	# all maps in C++...
1262	sub change_all_map_light {
1263	my ($change) = @_;	2060	my ($self) = @_;
1264		2061
1265	$_->change_map_light ($change)	2062	return if $self->{deny_reset};
1266	for grep $_->outdoor, values %cf::MAP;	2063
		2064	$self->do_decay_objects;
1267	}	2065	}
1268		2066
1269	sub unlink_save {	2067	sub unlink_save {
1270	my ($self) = @_;	2068	my ($self) = @_;
1271		2069
…		…
1276		2074
1277	sub load_header_from($) {	2075	sub load_header_from($) {
1278	my ($self, $path) = @_;	2076	my ($self, $path) = @_;
1279		2077
1280	utf8::encode $path;	2078	utf8::encode $path;
1281	aio_open $path, O_RDONLY, 0	2079	my $f = new_from_file cf::object::thawer $path
1282	or return;	2080	or return;
1283		2081
1284	$self->_load_header ($path)	2082	$self->_load_header ($f)
1285	or return;	2083	or return;
1286		2084
		2085	local $MAP_LOADING{$self->{path}} = $self;
		2086	$f->resolve_delayed_derefs;
		2087
1287	$self->{load_path} = $path;	2088	$self->{load_path} = $path;
1288		2089
1289	1	2090	1
1290	}	2091	}
1291		2092
		2093	# used to laod the header of an original map
1292	sub load_orig {	2094	sub load_header_orig {
1293	my ($self) = @_;	2095	my ($self) = @_;
1294		2096
1295	$self->load_header_from ($self->load_path)	2097	$self->load_header_from ($self->load_path)
1296	}	2098	}
1297		2099
		2100	# used to laod the header of an instantiated map
1298	sub load_temp {	2101	sub load_header_temp {
1299	my ($self) = @_;	2102	my ($self) = @_;
1300		2103
1301	$self->load_header_from ($self->save_path)	2104	$self->load_header_from ($self->save_path)
		2105	}
		2106
		2107	# called after loading the header from an instantiated map
		2108	sub prepare_temp {
		2109	my ($self) = @_;
		2110
		2111	$self->last_access ((delete $self->{last_access})
		2112	|| $cf::RUNTIME); #d#
		2113	# safety
		2114	$self->{instantiate_time} = $cf::RUNTIME
		2115	if $self->{instantiate_time} > $cf::RUNTIME;
		2116	}
		2117
		2118	# called after loading the header from an original map
		2119	sub prepare_orig {
		2120	my ($self) = @_;
		2121
		2122	$self->{load_original} = 1;
		2123	$self->{instantiate_time} = $cf::RUNTIME;
		2124	$self->last_access ($cf::RUNTIME);
		2125	$self->instantiate;
1302	}	2126	}
1303		2127
1304	sub load_header {	2128	sub load_header {
1305	my ($self) = @_;	2129	my ($self) = @_;
1306		2130
1307	if ($self->load_temp) {	2131	if ($self->load_header_temp) {
1308	$self->last_access ((delete $self->{last_access})	2132	$self->prepare_temp;
1309	|| $cf::RUNTIME); #d#
1310	# safety
1311	$self->{instantiate_time} = $cf::RUNTIME
1312	if $self->{instantiate_time} > $cf::RUNTIME;
1313	} else {	2133	} else {
1314	$self->load_orig	2134	$self->load_header_orig
1315	or return;	2135	or return;
1316		2136	$self->prepare_orig;
1317	$self->{load_original} = 1;
1318	$self->{instantiate_time} = $cf::RUNTIME;
1319	$self->last_access ($cf::RUNTIME);
1320	$self->instantiate;
1321	}	2137	}
		2138
		2139	$self->{deny_reset} = 1
		2140	if $self->no_reset;
		2141
		2142	$self->default_region (cf::region::find_by_path $self->{path})
		2143	unless $self->default_region;
1322		2144
1323	1	2145	1
1324	}	2146	}
1325		2147
1326	sub find;	2148	sub find;
1327	sub find {	2149	sub find {
1328	my ($path, $origin) = @_;	2150	my ($path, $origin) = @_;
1329		2151
		2152	cf::cede_to_tick;
		2153
1330	$path = normalise $path, $origin && $origin->path;	2154	$path = normalise $path, $origin;
1331		2155
		2156	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1332	cf::lock_wait "map_find:$path";	2157	my $guard2 = cf::lock_acquire "map_find:$path";
1333		2158
1334	$cf::MAP{$path} || do {	2159	$cf::MAP{$path} || do {
1335	my $guard = cf::lock_acquire "map_find:$path";
1336	my $map = new_from_path cf::map $path	2160	my $map = new_from_path cf::map $path
1337	or return;	2161	or return;
1338		2162
1339	$map->{last_save} = $cf::RUNTIME;	2163	$map->{last_save} = $cf::RUNTIME;
1340		2164
1341	$map->load_header	2165	$map->load_header
1342	or return;	2166	or return;
1343		2167
1344	if ($map->should_reset) {	2168	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2169	# doing this can freeze the server in a sync job, obviously
1345	$cf::WAIT_FOR_TICK->wait;	2170	#$cf::WAIT_FOR_TICK->wait;
		2171	undef $guard2;
		2172	undef $guard1;
1346	$map->reset;	2173	$map->reset;
1347	undef $guard;
1348	$map = find $path	2174	return find $path;
1349	or return;
1350	}	2175	}
1351		2176
1352	$cf::MAP{$path} = $map	2177	$cf::MAP{$path} = $map
1353	}	2178	}
1354	}	2179	}
		2180
		2181	sub pre_load { }
		2182	#sub post_load { } # XS
1355		2183
1356	sub load {	2184	sub load {
1357	my ($self) = @_;	2185	my ($self) = @_;
1358		2186
		2187	local $self->{deny_reset} = 1; # loading can take a long time
		2188
1359	my $path = $self->{path};	2189	my $path = $self->{path};
		2190
		2191	{
1360	my $guard = cf::lock_acquire "map_load:$path";	2192	my $guard = cf::lock_acquire "map_data:$path";
1361		2193
1362	return if $self->in_memory != cf::MAP_SWAPPED;	2194	return unless $self->valid;
		2195	return unless $self->state == cf::MAP_SWAPPED;
1363		2196
1364	$self->in_memory (cf::MAP_LOADING);
1365
1366	$self->alloc;	2197	$self->alloc;
1367	$self->_load_objects ($self->{load_path}, 1)	2198
		2199	$self->pre_load;
		2200	cf::cede_to_tick;
		2201
		2202	if (exists $self->{load_path}) {
		2203	my $f = new_from_file cf::object::thawer $self->{load_path};
		2204	$f->skip_block;
		2205	$self->_load_objects ($f)
1368	or return;	2206	or return;
1369		2207
1370	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2208	$self->post_load_original
1371	if delete $self->{load_original};	2209	if delete $self->{load_original};
1372		2210
1373	if (my $uniq = $self->uniq_path) {	2211	if (my $uniq = $self->uniq_path) {
1374	utf8::encode $uniq;	2212	utf8::encode $uniq;
1375	if (aio_open $uniq, O_RDONLY, 0) {	2213	unless (aio_stat $uniq) {
		2214	if (my $f = new_from_file cf::object::thawer $uniq) {
1376	$self->clear_unique_items;	2215	$self->clear_unique_items;
1377	$self->_load_objects ($uniq, 0);	2216	$self->_load_objects ($f);
		2217	$f->resolve_delayed_derefs;
		2218	}
		2219	}
1378	}	2220	}
1379	}
1380		2221
1381	Coro::cede;	2222	$f->resolve_delayed_derefs;
		2223	} else {
		2224	$self->post_load_original
		2225	if delete $self->{load_original};
		2226	}
1382		2227
		2228	$self->state (cf::MAP_INACTIVE);
		2229
		2230	cf::cede_to_tick;
1383	# now do the right thing for maps	2231	# now do the right thing for maps
1384	$self->link_multipart_objects;	2232	$self->link_multipart_objects;
1385
1386	unless ($self->{deny_activate}) {
1387	$self->decay_objects;
1388	$self->fix_auto_apply;
1389	$self->update_buttons;
1390	Coro::cede;
1391	$self->set_darkness_map;
1392	$self->difficulty ($self->estimate_difficulty)	2233	$self->difficulty ($self->estimate_difficulty)
1393	unless $self->difficulty;	2234	unless $self->difficulty;
1394	Coro::cede;	2235	cf::cede_to_tick;
1395	$self->activate;	2236
		2237	unless ($self->{deny_activate}) {
		2238	$self->decay_objects;
		2239	$self->fix_auto_apply;
		2240	$self->update_buttons;
		2241	cf::cede_to_tick;
		2242	#$self->activate; # no longer activate maps automatically
		2243	}
		2244
		2245	$self->{last_save} = $cf::RUNTIME;
		2246	$self->last_access ($cf::RUNTIME);
		2247	}
		2248
		2249	$self->post_load;
		2250
1396	}	2251	1
1397
1398	$self->in_memory (cf::MAP_IN_MEMORY);
1399	}	2252	}
1400		2253
		2254	# customize the map for a given player, i.e.
		2255	# return the _real_ map. used by e.g. per-player
		2256	# maps to change the path to ~playername/mappath
1401	sub customise_for {	2257	sub customise_for {
1402	my ($self, $ob) = @_;	2258	my ($self, $ob) = @_;
1403		2259
1404	return find "~" . $ob->name . "/" . $self->{path}	2260	return find "~" . $ob->name . "/" . $self->{path}
1405	if $self->per_player;	2261	if $self->per_player;
1406		2262
		2263	# return find "?party/" . $ob->name . "/" . $self->{path}
		2264	# if $self->per_party;
		2265
1407	$self	2266	$self
1408	}
1409
1410	# find and load all maps in the 3x3 area around a map
1411	sub load_diag {
1412	my ($map) = @_;
1413
1414	my @diag; # diagonal neighbours
1415
1416	for (0 .. 3) {
1417	my $neigh = $map->tile_path ($_)
1418	or next;
1419	$neigh = find $neigh, $map
1420	or next;
1421	$neigh->load;
1422
1423	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1424	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1425	}
1426
1427	for (@diag) {
1428	my $neigh = find @$_
1429	or next;
1430	$neigh->load;
1431	}
1432	}	2267	}
1433		2268
1434	sub find_sync {	2269	sub find_sync {
1435	my ($path, $origin) = @_;	2270	my ($path, $origin) = @_;
1436		2271
1437	cf::sync_job { find $path, $origin }	2272	# it's a bug to call this from the main context
		2273	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2274	if $Coro::current == $Coro::main;
		2275
		2276	find $path, $origin
1438	}	2277	}
1439		2278
1440	sub do_load_sync {	2279	sub do_load_sync {
1441	my ($map) = @_;	2280	my ($map) = @_;
1442		2281
1443	cf::sync_job { $map->load };	2282	# it's a bug to call this from the main context
		2283	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2284	if $Coro::current == $Coro::main;
		2285
		2286	$map->load;
1444	}	2287	}
1445		2288
1446	our %MAP_PREFETCH;	2289	our %MAP_PREFETCH;
1447	our $MAP_PREFETCHER = Coro::async {	2290	our $MAP_PREFETCHER = undef;
1448	while () {
1449	for my $path (keys %MAP_PREFETCH) {
1450	my $map = find $path
1451	or next;
1452	$map->load;
1453
1454	delete $MAP_PREFETCH{$path};
1455	}
1456	Coro::schedule;
1457	}
1458	};
1459		2291
1460	sub find_async {	2292	sub find_async {
1461	my ($path, $origin) = @_;	2293	my ($path, $origin, $load) = @_;
1462		2294
1463	$path = normalise $path, $origin && $origin->{path};	2295	$path = normalise $path, $origin;
1464		2296
1465	if (my $map = $cf::MAP{$path}) {	2297	if (my $map = $cf::MAP{$path}) {
1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2298	return $map if !$load || $map->linkable;
		2299	}
		2300
		2301	$MAP_PREFETCH{$path} |= $load;
		2302
		2303	$MAP_PREFETCHER ||= cf::async {
		2304	$Coro::current->{desc} = "map prefetcher";
		2305
		2306	while (%MAP_PREFETCH) {
		2307	while (my ($k, $v) = each %MAP_PREFETCH) {
		2308	if (my $map = find $k) {
		2309	$map->load if $v;
		2310	}
		2311
		2312	delete $MAP_PREFETCH{$k};
		2313	}
		2314	}
		2315	undef $MAP_PREFETCHER;
1467	}	2316	};
1468
1469	$MAP_PREFETCH{$path} = 0;
1470	$MAP_PREFETCHER->ready;	2317	$MAP_PREFETCHER->prio (6);
1471		2318
1472	()	2319	()
1473	}	2320	}
1474		2321
		2322	# common code, used by both ->save and ->swapout
1475	sub save {	2323	sub _save {
1476	my ($self) = @_;	2324	my ($self) = @_;
1477
1478	my $lock = cf::lock_acquire "map_data:" . $self->path;
1479		2325
1480	$self->{last_save} = $cf::RUNTIME;	2326	$self->{last_save} = $cf::RUNTIME;
1481		2327
1482	return unless $self->dirty;	2328	return unless $self->dirty;
1483		2329
…		…
1489	return if $self->{deny_save};	2335	return if $self->{deny_save};
1490		2336
1491	local $self->{last_access} = $self->last_access;#d#	2337	local $self->{last_access} = $self->last_access;#d#
1492		2338
1493	cf::async {	2339	cf::async {
		2340	$Coro::current->{desc} = "map player save";
1494	$_->contr->save for $self->players;	2341	$_->contr->save for $self->players;
1495	};	2342	};
		2343
		2344	cf::get_slot 0.02;
1496		2345
1497	if ($uniq) {	2346	if ($uniq) {
1498	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2347	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1499	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2348	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1500	} else {	2349	} else {
1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1502	}	2351	}
1503	}	2352	}
1504		2353
		2354	sub save {
		2355	my ($self) = @_;
		2356
		2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2358
		2359	$self->_save;
		2360	}
		2361
1505	sub swap_out {	2362	sub swap_out {
1506	my ($self) = @_;	2363	my ($self) = @_;
1507		2364
1508	# save first because save cedes
1509	$self->save;
1510
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2366
		2367	return if !$self->linkable;
		2368	return if $self->{deny_save};
1513	return if $self->players;	2369	return if $self->players;
1514	return if $self->in_memory != cf::MAP_IN_MEMORY;
1515	return if $self->{deny_save};
1516		2370
		2371	# first deactivate the map and "unlink" it from the core
		2372	$self->deactivate;
		2373	$_->clear_links_to ($self) for values %cf::MAP;
		2374	$self->state (cf::MAP_SWAPPED);
		2375
		2376	# then atomically save
		2377	$self->_save;
		2378
		2379	# then free the map
1517	$self->clear;	2380	$self->clear;
1518	$self->in_memory (cf::MAP_SWAPPED);
1519	}	2381	}
1520		2382
1521	sub reset_at {	2383	sub reset_at {
1522	my ($self) = @_;	2384	my ($self) = @_;
1523		2385
1524	# TODO: safety, remove and allow resettable per-player maps	2386	# TODO: safety, remove and allow resettable per-player maps
1525	return 1e99 if $self->isa ("ext::map_per_player");#d#
1526	return 1e99 if $self->{deny_reset};	2387	return 1e99 if $self->{deny_reset};
1527		2388
1528	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2389	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1529	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2390	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1530		2391
…		…
1541	my ($self) = @_;	2402	my ($self) = @_;
1542		2403
1543	my $lock = cf::lock_acquire "map_data:$self->{path}";	2404	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		2405
1545	return if $self->players;	2406	return if $self->players;
1546	return if $self->isa ("ext::map_per_player");#d#
1547		2407
1548	warn "resetting map ", $self->path;#d#	2408	cf::trace "resetting map ", $self->path, "\n";
		2409
		2410	$self->state (cf::MAP_SWAPPED);
		2411
		2412	# need to save uniques path
		2413	unless ($self->{deny_save}) {
		2414	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2415
		2416	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2417	if $uniq;
		2418	}
1549		2419
1550	delete $cf::MAP{$self->path};	2420	delete $cf::MAP{$self->path};
1551		2421
1552	$self->in_memory (cf::MAP_SWAPPED);	2422	$self->deactivate;
		2423	$_->clear_links_to ($self) for values %cf::MAP;
1553	$self->clear;	2424	$self->clear;
1554
1555	$_->clear_links_to ($self) for values %cf::MAP;
1556		2425
1557	$self->unlink_save;	2426	$self->unlink_save;
1558	$self->destroy;	2427	$self->destroy;
1559	}	2428	}
1560		2429
1561	my $nuke_counter = "aaaa";	2430	my $nuke_counter = "aaaa";
1562		2431
1563	sub nuke {	2432	sub nuke {
1564	my ($self) = @_;	2433	my ($self) = @_;
1565		2434
		2435	{
		2436	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2437
1566	delete $cf::MAP{$self->path};	2438	delete $cf::MAP{$self->path};
1567		2439
1568	$self->unlink_save;	2440	$self->unlink_save;
1569		2441
1570	bless $self, "cf::map";	2442	bless $self, "cf::map::wrap";
1571	delete $self->{deny_reset};	2443	delete $self->{deny_reset};
1572	$self->{deny_save} = 1;	2444	$self->{deny_save} = 1;
1573	$self->reset_timeout (1);	2445	$self->reset_timeout (1);
1574	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2446	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1575		2447
1576	$cf::MAP{$self->path} = $self;	2448	$cf::MAP{$self->path} = $self;
		2449	}
1577		2450
1578	$self->reset; # polite request, might not happen	2451	$self->reset; # polite request, might not happen
		2452	}
		2453
		2454	=item $maps = cf::map::tmp_maps
		2455
		2456	Returns an arrayref with all map paths of currently instantiated and saved
		2457	maps. May block.
		2458
		2459	=cut
		2460
		2461	sub tmp_maps() {
		2462	[
		2463	map {
		2464	utf8::decode $_;
		2465	/\.map$/
		2466	? normalise $_
		2467	: ()
		2468	} @{ aio_readdir $TMPDIR or [] }
		2469	]
		2470	}
		2471
		2472	=item $maps = cf::map::random_maps
		2473
		2474	Returns an arrayref with all map paths of currently instantiated and saved
		2475	random maps. May block.
		2476
		2477	=cut
		2478
		2479	sub random_maps() {
		2480	[
		2481	map {
		2482	utf8::decode $_;
		2483	/\.map$/
		2484	? normalise "?random/$_"
		2485	: ()
		2486	} @{ aio_readdir $RANDOMDIR or [] }
		2487	]
1579	}	2488	}
1580		2489
1581	=item cf::map::unique_maps	2490	=item cf::map::unique_maps
1582		2491
1583	Returns an arrayref of paths of all shared maps that have	2492	Returns an arrayref of paths of all shared maps that have
1584	instantiated unique items. May block.	2493	instantiated unique items. May block.
1585		2494
1586	=cut	2495	=cut
1587		2496
1588	sub unique_maps() {	2497	sub unique_maps() {
1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2498	[
1590	or return;	2499	map {
1591
1592	my @paths;
1593
1594	for (@$files) {
1595	utf8::decode $_;	2500	utf8::decode $_;
1596	next if /\.pst$/;	2501	s/\.map$//; # TODO future compatibility hack
1597	next unless /^$PATH_SEP/o;	2502	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2503	? ()
		2504	: normalise $_
		2505	} @{ aio_readdir $UNIQUEDIR or [] }
		2506	]
		2507	}
1598		2508
		2509	=item cf::map::static_maps
		2510
		2511	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2512	file in the shared directory excluding F</styles> and F</editor>). May
		2513	block.
		2514
		2515	=cut
		2516
		2517	sub static_maps() {
		2518	my @dirs = "";
		2519	my @maps;
		2520
		2521	while (@dirs) {
		2522	my $dir = shift @dirs;
		2523
		2524	next if $dir eq "/styles" || $dir eq "/editor";
		2525
		2526	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2527	or return;
		2528
		2529	for (@$files) {
1599	s/\.map$//;	2530	s/\.map$// or next;
1600	push @paths, $_;	2531	utf8::decode $_;
1601	}	2532	push @maps, "$dir/$_";
		2533	}
1602		2534
1603	\@paths	2535	push @dirs, map "$dir/$_", @$dirs;
1604	}	2536	}
1605		2537
1606	package cf;	2538	\@maps
		2539	}
1607		2540
1608	=back	2541	=back
1609		2542
1610	=head3 cf::object	2543	=head3 cf::object
1611		2544
…		…
1615		2548
1616	=over 4	2549	=over 4
1617		2550
1618	=item $ob->inv_recursive	2551	=item $ob->inv_recursive
1619		2552
1620	Returns the inventory of the object _and_ their inventories, recursively.	2553	Returns the inventory of the object I<and> their inventories, recursively,
		2554	but I<not> the object itself.
1621		2555
1622	=cut	2556	=cut
1623		2557
1624	sub inv_recursive_;	2558	sub inv_recursive_;
1625	sub inv_recursive_ {	2559	sub inv_recursive_ {
…		…
1628		2562
1629	sub inv_recursive {	2563	sub inv_recursive {
1630	inv_recursive_ inv $_[0]	2564	inv_recursive_ inv $_[0]
1631	}	2565	}
1632		2566
		2567	=item $ref = $ob->ref
		2568
		2569	Creates and returns a persistent reference to an object that can be stored as a string.
		2570
		2571	=item $ob = cf::object::deref ($refstring)
		2572
		2573	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2574	even if the object actually exists. May block.
		2575
		2576	=cut
		2577
		2578	sub deref {
		2579	my ($ref) = @_;
		2580
		2581	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2582	my ($uuid, $name) = ($1, $2);
		2583	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2584	or return;
		2585	$pl->ob->uuid eq $uuid
		2586	or return;
		2587
		2588	$pl->ob
		2589	} else {
		2590	warn "$ref: cannot resolve object reference\n";
		2591	undef
		2592	}
		2593	}
		2594
1633	package cf;	2595	package cf;
1634		2596
1635	=back	2597	=back
1636		2598
1637	=head3 cf::object::player	2599	=head3 cf::object::player
…		…
1643	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2605	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1644	can be C<undef>. Does the right thing when the player is currently in a	2606	can be C<undef>. Does the right thing when the player is currently in a
1645	dialogue with the given NPC character.	2607	dialogue with the given NPC character.
1646		2608
1647	=cut	2609	=cut
		2610
		2611	our $SAY_CHANNEL = {
		2612	id => "say",
		2613	title => "Map",
		2614	reply => "say ",
		2615	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2616	};
		2617
		2618	our $CHAT_CHANNEL = {
		2619	id => "chat",
		2620	title => "Chat",
		2621	reply => "chat ",
		2622	tooltip => "Player chat and shouts, global to the server.",
		2623	};
1648		2624
1649	# rough implementation of a future "reply" method that works	2625	# rough implementation of a future "reply" method that works
1650	# with dialog boxes.	2626	# with dialog boxes.
1651	#TODO: the first argument must go, split into a $npc->reply_to ( method	2627	#TODO: the first argument must go, split into a $npc->reply_to ( method
1652	sub cf::object::player::reply($$$;$) {	2628	sub cf::object::player::reply($$$;$) {
…		…
1654		2630
1655	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2631	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1656		2632
1657	if ($self->{record_replies}) {	2633	if ($self->{record_replies}) {
1658	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2634	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2635
1659	} else {	2636	} else {
		2637	my $pl = $self->contr;
		2638
		2639	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2640	my $dialog = $pl->{npc_dialog};
		2641	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2642
		2643	} else {
1660	$msg = $npc->name . " says: $msg" if $npc;	2644	$msg = $npc->name . " says: $msg" if $npc;
1661	$self->message ($msg, $flags);	2645	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2646	}
1662	}	2647	}
		2648	}
		2649
		2650	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2651
		2652	=cut
		2653
		2654	sub cf::object::send_msg {
		2655	my $pl = shift->contr
		2656	or return;
		2657	$pl->send_msg (@_);
1663	}	2658	}
1664		2659
1665	=item $player_object->may ("access")	2660	=item $player_object->may ("access")
1666		2661
1667	Returns wether the given player is authorized to access resource "access"	2662	Returns wether the given player is authorized to access resource "access"
…		…
1680		2675
1681	=item $player_object->enter_link	2676	=item $player_object->enter_link
1682		2677
1683	Freezes the player and moves him/her to a special map (C<{link}>).	2678	Freezes the player and moves him/her to a special map (C<{link}>).
1684		2679
1685	The player should be reasonably safe there for short amounts of time. You	2680	The player should be reasonably safe there for short amounts of time (e.g.
1686	I<MUST> call C<leave_link> as soon as possible, though.	2681	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2682	though, as the player cannot control the character while it is on the link
		2683	map.
1687		2684
1688	Will never block.	2685	Will never block.
1689		2686
1690	=item $player_object->leave_link ($map, $x, $y)	2687	=item $player_object->leave_link ($map, $x, $y)
1691		2688
…		…
1699	=cut	2696	=cut
1700		2697
1701	sub link_map {	2698	sub link_map {
1702	unless ($LINK_MAP) {	2699	unless ($LINK_MAP) {
1703	$LINK_MAP = cf::map::find "{link}"	2700	$LINK_MAP = cf::map::find "{link}"
1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2701	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1705	$LINK_MAP->load;	2702	$LINK_MAP->load;
1706	}	2703	}
1707		2704
1708	$LINK_MAP	2705	$LINK_MAP
1709	}	2706	}
…		…
1711	sub cf::object::player::enter_link {	2708	sub cf::object::player::enter_link {
1712	my ($self) = @_;	2709	my ($self) = @_;
1713		2710
1714	$self->deactivate_recursive;	2711	$self->deactivate_recursive;
1715		2712
		2713	++$self->{_link_recursion};
		2714
1716	return if UNIVERSAL::isa $self->map, "ext::map_link";	2715	return if UNIVERSAL::isa $self->map, "ext::map_link";
1717		2716
1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1719	if $self->map;	2718	if $self->map && $self->map->{path} ne "{link}";
1720		2719
1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2720	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1722	}	2721	}
1723		2722
1724	sub cf::object::player::leave_link {	2723	sub cf::object::player::leave_link {
1725	my ($self, $map, $x, $y) = @_;	2724	my ($self, $map, $x, $y) = @_;
		2725
		2726	return unless $self->contr->active;
1726		2727
1727	my $link_pos = delete $self->{_link_pos};	2728	my $link_pos = delete $self->{_link_pos};
1728		2729
1729	unless ($map) {	2730	unless ($map) {
1730	# restore original map position	2731	# restore original map position
…		…
1741	($x, $y) = (-1, -1)	2742	($x, $y) = (-1, -1)
1742	unless (defined $x) && (defined $y);	2743	unless (defined $x) && (defined $y);
1743		2744
1744	# use -1 or undef as default coordinates, not 0, 0	2745	# use -1 or undef as default coordinates, not 0, 0
1745	($x, $y) = ($map->enter_x, $map->enter_y)	2746	($x, $y) = ($map->enter_x, $map->enter_y)
1746	if $x <=0 && $y <= 0;	2747	if $x <= 0 && $y <= 0;
1747		2748
1748	$map->load;	2749	$map->load;
1749	$map->load_diag;
1750		2750
1751	return unless $self->contr->active;	2751	return unless $self->contr->active;
		2752
		2753	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2754	if ($self->enter_map ($map, $x, $y)) {
		2755	# entering was successful
		2756	delete $self->{_link_recursion};
		2757	# only activate afterwards, to support waiting in hooks
1752	$self->activate_recursive;	2758	$self->activate_recursive;
1753	$self->enter_map ($map, $x, $y);
1754	}
1755
1756	cf::player->attach (
1757	on_logout => sub {
1758	my ($pl) = @_;
1759
1760	# abort map switching before logout
1761	if ($pl->ob->{_link_pos}) {
1762	cf::sync_job {
1763	$pl->ob->leave_link
1764	};
1765	}
1766	},	2759	}
1767	on_login => sub {
1768	my ($pl) = @_;
1769		2760
1770	# try to abort aborted map switching on player login :)	2761	}
1771	# should happen only on crashes
1772	if ($pl->ob->{_link_pos}) {
1773	$pl->ob->enter_link;
1774	(async {
1775	# we need this sleep as the login has a concurrent enter_exit running
1776	# and this sleep increases chances of the player not ending up in scorn
1777	$pl->ob->reply (undef,
1778	"There was an internal problem at your last logout, "
1779	. "the server will try to bring you to your intended destination in a second.",
1780	cf::NDI_RED);
1781	Coro::Timer::sleep 1;
1782	$pl->ob->leave_link;
1783	})->prio (2);
1784	}
1785	},
1786	);
1787		2762
1788	=item $player_object->goto ($path, $x, $y)	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1789		2764
		2765	Moves the player to the given map-path and coordinates by first freezing
		2766	her, loading and preparing them map, calling the provided $check callback
		2767	that has to return the map if sucecssful, and then unfreezes the player on
		2768	the new (success) or old (failed) map position. In either case, $done will
		2769	be called at the end of this process.
		2770
		2771	Note that $check will be called with a potentially non-loaded map, so if
		2772	it needs a loaded map it has to call C<< ->load >>.
		2773
1790	=cut	2774	=cut
		2775
		2776	our $GOTOGEN;
1791		2777
1792	sub cf::object::player::goto {	2778	sub cf::object::player::goto {
1793	my ($self, $path, $x, $y) = @_;	2779	my ($self, $path, $x, $y, $check, $done) = @_;
		2780
		2781	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2782	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2783	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2784	($path, $x, $y) = @$EMERGENCY_POSITION;
		2785	}
		2786
		2787	# do generation counting so two concurrent goto's will be executed in-order
		2788	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1794		2789
1795	$self->enter_link;	2790	$self->enter_link;
1796		2791
1797	(async {	2792	(async {
1798	my $map = cf::map::find $path;	2793	$Coro::current->{desc} = "player::goto $path $x $y";
		2794
		2795	# *tag paths override both path and x|y
		2796	if ($path =~ /^\*(.*)$/) {
		2797	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2798	my $ob = $obs[rand @obs];
		2799
		2800	# see if we actually can go there
		2801	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2802	$ob = $obs[rand @obs];
		2803	} else {
		2804	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2805	}
		2806	# else put us there anyways for now #d#
		2807
		2808	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2809	} else {
		2810	($path, $x, $y) = (undef, undef, undef);
		2811	}
		2812	}
		2813
		2814	my $map = eval {
		2815	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2816
		2817	if ($map) {
1799	$map = $map->customise_for ($self) if $map;	2818	$map = $map->customise_for ($self);
1800		2819	$map = $check->($map, $x, $y, $self) if $check && $map;
1801	# warn "entering ", $map->path, " at ($x, $y)\n"	2820	} else {
1802	# if $map;
1803
1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2821	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2822	}
1805		2823
		2824	$map
		2825	};
		2826
		2827	if ($@) {
		2828	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2829	LOG llevError | logBacktrace, Carp::longmess $@;
		2830	}
		2831
		2832	if ($gen == $self->{_goto_generation}) {
		2833	delete $self->{_goto_generation};
1806	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
		2835	}
		2836
		2837	$done->($self) if $done;
1807	})->prio (1);	2838	})->prio (1);
1808	}	2839	}
1809		2840
1810	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
1811		2842
…		…
1813		2844
1814	sub parse_random_map_params {	2845	sub parse_random_map_params {
1815	my ($spec) = @_;	2846	my ($spec) = @_;
1816		2847
1817	my $rmp = { # defaults	2848	my $rmp = { # defaults
1818	xsize => 10,	2849	xsize => (cf::rndm 15, 40),
1819	ysize => 10,	2850	ysize => (cf::rndm 15, 40),
		2851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2852	#layout => string,
1820	};	2853	};
1821		2854
1822	for (split /\n/, $spec) {	2855	for (split /\n/, $spec) {
1823	my ($k, $v) = split /\s+/, $_, 2;	2856	my ($k, $v) = split /\s+/, $_, 2;
1824		2857
…		…
1836	# that depends on the exit object	2869	# that depends on the exit object
1837		2870
1838	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
1839		2872
1840	if ($exit->map) {	2873	if ($exit->map) {
1841	$rmp->{region} = $exit->map->region_name;	2874	$rmp->{region} = $exit->region->name;
1842	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
1843	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
1844	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
1845	}	2880	}
1846		2881
1847	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
1848		2883
1849	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1850	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
		2886	my $meta = "$RANDOMDIR/$md5.meta";
1851		2887
1852	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1853	aio_write $fh, 0, (length $data), $data, 0;	2889	aio_write $fh, 0, (length $data), $data, 0;
		2890	undef $fh;
		2891	aio_rename "$meta~", $meta;
1854		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
1855	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
1856	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
1857	}	2899	}
1858	}	2900	}
1859		2901
1860	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
1861	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
…		…
1863	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
1864		2906
1865	$self->enter_link;	2907	$self->enter_link;
1866		2908
1867	(async {	2909	(async {
1868	$self->deactivate_recursive; # just to be sure	2910	$Coro::current->{desc} = "enter_exit";
		2911
1869	unless (eval {	2912	unless (eval {
		2913	$self->deactivate_recursive; # just to be sure
		2914
		2915	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2916	my $x = $exit->stats->hp;
		2917	my $y = $exit->stats->sp;
		2918
		2919	# special map handling
		2920	my $slaying = $exit->slaying;
		2921
		2922	# special map handling
		2923	if ($slaying eq "/!") {
		2924	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2925
1870	prepare_random_map $exit	2926	prepare_random_map $exit
		2927	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2928
1871	if $exit->slaying eq "/!";	2929	$map = $exit->slaying;
1872		2930
1873	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2931	} elsif ($slaying eq '!up') {
1874	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2932	$map = $exit->map->tile_path (cf::TILE_UP);
		2933	$x = $exit->x;
		2934	$y = $exit->y;
1875		2935
		2936	} elsif ($slaying eq '!down') {
		2937	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2938	$x = $exit->x;
		2939	$y = $exit->y;
		2940	}
		2941
		2942	$self->goto ($map, $x, $y);
		2943
		2944	# if exit is damned, update players death & WoR home-position
		2945	$self->contr->savebed ($map, $x, $y)
		2946	if $exit->flag (cf::FLAG_DAMNED);
		2947
1876	1;	2948	1
1877	}) {	2949	}) {
1878	$self->message ("Something went wrong deep within the crossfire server. "	2950	$self->message ("Something went wrong deep within the deliantra server. "
1879	. "I'll try to bring you back to the map you were before. "	2951	. "I'll try to bring you back to the map you were before. "
1880	. "Please report this to the dungeon master!",	2952	. "Please report this to the dungeon master!",
1881	cf::NDI_UNIQUE | cf::NDI_RED);	2953	cf::NDI_UNIQUE | cf::NDI_RED);
1882		2954
1883	warn "ERROR in enter_exit: $@";	2955	error "ERROR in enter_exit: $@";
1884	$self->leave_link;	2956	$self->leave_link;
1885	}	2957	}
1886	})->prio (1);	2958	})->prio (1);
1887	}	2959	}
1888		2960
…		…
1899		2971
1900	sub cf::client::send_drawinfo {	2972	sub cf::client::send_drawinfo {
1901	my ($self, $text, $flags) = @_;	2973	my ($self, $text, $flags) = @_;
1902		2974
1903	utf8::encode $text;	2975	utf8::encode $text;
1904	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2976	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1905	}	2977	}
1906		2978
		2979	=item $client->send_big_packet ($pkt)
		2980
		2981	Like C<send_packet>, but tries to compress large packets, and fragments
		2982	them as required.
		2983
		2984	=cut
		2985
		2986	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2987
		2988	sub cf::client::send_big_packet {
		2989	my ($self, $pkt) = @_;
		2990
		2991	# try lzf for large packets
		2992	$pkt = "lzf " . Compress::LZF::compress $pkt
		2993	if 1024 <= length $pkt and $self->{can_lzf};
		2994
		2995	# split very large packets
		2996	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2997	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2998	$pkt = "frag";
		2999	}
		3000
		3001	$self->send_packet ($pkt);
		3002	}
		3003
		3004	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3005
		3006	Send a drawinfo or msg packet to the client, formatting the msg for the
		3007	client if neccessary. C<$type> should be a string identifying the type of
		3008	the message, with C<log> being the default. If C<$color> is negative, suppress
		3009	the message unless the client supports the msg packet.
		3010
		3011	=cut
		3012
		3013	# non-persistent channels (usually the info channel)
		3014	our %CHANNEL = (
		3015	"c/motd" => {
		3016	id => "infobox",
		3017	title => "MOTD",
		3018	reply => undef,
		3019	tooltip => "The message of the day",
		3020	},
		3021	"c/identify" => {
		3022	id => "infobox",
		3023	title => "Identify",
		3024	reply => undef,
		3025	tooltip => "Items recently identified",
		3026	},
		3027	"c/examine" => {
		3028	id => "infobox",
		3029	title => "Examine",
		3030	reply => undef,
		3031	tooltip => "Signs and other items you examined",
		3032	},
		3033	"c/shopinfo" => {
		3034	id => "infobox",
		3035	title => "Shop Info",
		3036	reply => undef,
		3037	tooltip => "What your bargaining skill tells you about the shop",
		3038	},
		3039	"c/book" => {
		3040	id => "infobox",
		3041	title => "Book",
		3042	reply => undef,
		3043	tooltip => "The contents of a note or book",
		3044	},
		3045	"c/lookat" => {
		3046	id => "infobox",
		3047	title => "Look",
		3048	reply => undef,
		3049	tooltip => "What you saw there",
		3050	},
		3051	"c/who" => {
		3052	id => "infobox",
		3053	title => "Players",
		3054	reply => undef,
		3055	tooltip => "Shows players who are currently online",
		3056	},
		3057	"c/body" => {
		3058	id => "infobox",
		3059	title => "Body Parts",
		3060	reply => undef,
		3061	tooltip => "Shows which body parts you posess and are available",
		3062	},
		3063	"c/statistics" => {
		3064	id => "infobox",
		3065	title => "Statistics",
		3066	reply => undef,
		3067	tooltip => "Shows your primary statistics",
		3068	},
		3069	"c/skills" => {
		3070	id => "infobox",
		3071	title => "Skills",
		3072	reply => undef,
		3073	tooltip => "Shows your experience per skill and item power",
		3074	},
		3075	"c/shopitems" => {
		3076	id => "infobox",
		3077	title => "Shop Items",
		3078	reply => undef,
		3079	tooltip => "Shows the items currently for sale in this shop",
		3080	},
		3081	"c/resistances" => {
		3082	id => "infobox",
		3083	title => "Resistances",
		3084	reply => undef,
		3085	tooltip => "Shows your resistances",
		3086	},
		3087	"c/pets" => {
		3088	id => "infobox",
		3089	title => "Pets",
		3090	reply => undef,
		3091	tooltip => "Shows information abotu your pets/a specific pet",
		3092	},
		3093	"c/perceiveself" => {
		3094	id => "infobox",
		3095	title => "Perceive Self",
		3096	reply => undef,
		3097	tooltip => "You gained detailed knowledge about yourself",
		3098	},
		3099	"c/uptime" => {
		3100	id => "infobox",
		3101	title => "Uptime",
		3102	reply => undef,
		3103	tooltip => "How long the server has been running since last restart",
		3104	},
		3105	"c/mapinfo" => {
		3106	id => "infobox",
		3107	title => "Map Info",
		3108	reply => undef,
		3109	tooltip => "Information related to the maps",
		3110	},
		3111	"c/party" => {
		3112	id => "party",
		3113	title => "Party",
		3114	reply => "gsay ",
		3115	tooltip => "Messages and chat related to your party",
		3116	},
		3117	"c/death" => {
		3118	id => "death",
		3119	title => "Death",
		3120	reply => undef,
		3121	tooltip => "Reason for and more info about your most recent death",
		3122	},
		3123	"c/say" => $SAY_CHANNEL,
		3124	"c/chat" => $CHAT_CHANNEL,
		3125	);
		3126
		3127	sub cf::client::send_msg {
		3128	my ($self, $channel, $msg, $color, @extra) = @_;
		3129
		3130	$msg = $self->pl->expand_cfpod ($msg)
		3131	unless $color & cf::NDI_VERBATIM;
		3132
		3133	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3134
		3135	# check predefined channels, for the benefit of C
		3136	if ($CHANNEL{$channel}) {
		3137	$channel = $CHANNEL{$channel};
		3138
		3139	$self->ext_msg (channel_info => $channel);
		3140	$channel = $channel->{id};
		3141
		3142	} elsif (ref $channel) {
		3143	# send meta info to client, if not yet sent
		3144	unless (exists $self->{channel}{$channel->{id}}) {
		3145	$self->{channel}{$channel->{id}} = $channel;
		3146	$self->ext_msg (channel_info => $channel);
		3147	}
		3148
		3149	$channel = $channel->{id};
		3150	}
		3151
		3152	return unless @extra || length $msg;
		3153
		3154	# default colour, mask it out
		3155	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3156	if $color & cf::NDI_DEF;
		3157
		3158	my $pkt = "msg "
		3159	. $self->{json_coder}->encode (
		3160	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3161	);
		3162
		3163	$self->send_big_packet ($pkt);
		3164	}
		3165
		3166	=item $client->ext_msg ($type, @msg)
		3167
		3168	Sends an ext event to the client.
		3169
		3170	=cut
		3171
		3172	sub cf::client::ext_msg($$@) {
		3173	my ($self, $type, @msg) = @_;
		3174
		3175	if ($self->extcmd == 2) {
		3176	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3177	} elsif ($self->extcmd == 1) { # TODO: remove
		3178	push @msg, msgtype => "event_$type";
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3180	}
		3181	}
		3182
		3183	=item $client->ext_reply ($msgid, @msg)
		3184
		3185	Sends an ext reply to the client.
		3186
		3187	=cut
		3188
		3189	sub cf::client::ext_reply($$@) {
		3190	my ($self, $id, @msg) = @_;
		3191
		3192	return unless $self->extcmd == 2;
		3193
		3194	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3195	}
1907		3196
1908	=item $success = $client->query ($flags, "text", \&cb)	3197	=item $success = $client->query ($flags, "text", \&cb)
1909		3198
1910	Queues a query to the client, calling the given callback with	3199	Queues a query to the client, calling the given callback with
1911	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3200	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1912	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3201	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1913		3202
1914	Queries can fail, so check the return code. Or don't, as queries will become	3203	Queries can fail, so check the return code. Or don't, as queries will
1915	reliable at some point in the future.	3204	become reliable at some point in the future.
1916		3205
1917	=cut	3206	=cut
1918		3207
1919	sub cf::client::query {	3208	sub cf::client::query {
1920	my ($self, $flags, $text, $cb) = @_;	3209	my ($self, $flags, $text, $cb) = @_;
…		…
1928	utf8::encode $text;	3217	utf8::encode $text;
1929	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3218	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1930		3219
1931	$self->send_packet ($self->{query_queue}[0][0])	3220	$self->send_packet ($self->{query_queue}[0][0])
1932	if @{ $self->{query_queue} } == 1;	3221	if @{ $self->{query_queue} } == 1;
		3222
		3223	1
1933	}	3224	}
1934		3225
1935	cf::client->attach (	3226	cf::client->attach (
		3227	on_connect => sub {
		3228	my ($ns) = @_;
		3229
		3230	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3231	},
1936	on_reply => sub {	3232	on_reply => sub {
1937	my ($ns, $msg) = @_;	3233	my ($ns, $msg) = @_;
1938		3234
1939	# this weird shuffling is so that direct followup queries	3235	# this weird shuffling is so that direct followup queries
1940	# get handled first	3236	# get handled first
1941	my $queue = delete $ns->{query_queue}	3237	my $queue = delete $ns->{query_queue}
1942	or return; # be conservative, not sure how that can happen, but we saw a crash here	3238	or return; # be conservative, not sure how that can happen, but we saw a crash here
1943		3239
1944	(shift @$queue)->[1]->($msg);	3240	(shift @$queue)->[1]->($msg);
		3241	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1945		3242
1946	push @{ $ns->{query_queue} }, @$queue;	3243	push @{ $ns->{query_queue} }, @$queue;
1947		3244
1948	if (@{ $ns->{query_queue} } == @$queue) {	3245	if (@{ $ns->{query_queue} } == @$queue) {
1949	if (@$queue) {	3246	if (@$queue) {
…		…
1951	} else {	3248	} else {
1952	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3249	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1953	}	3250	}
1954	}	3251	}
1955	},	3252	},
		3253	on_exticmd => sub {
		3254	my ($ns, $buf) = @_;
		3255
		3256	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3257
		3258	if (ref $msg) {
		3259	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3260
		3261	my @reply;
		3262
		3263	if (my $cb = $EXTICMD{$type}) {
		3264	@reply = $cb->($ns, @payload);
		3265	}
		3266
		3267	$ns->ext_reply ($reply, @reply)
		3268	if $reply;
		3269
		3270	} else {
		3271	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3272	}
		3273
		3274	cf::override;
		3275	},
1956	);	3276	);
1957		3277
1958	=item $client->async (\&cb)	3278	=item $client->async (\&cb)
1959		3279
1960	Create a new coroutine, running the specified callback. The coroutine will	3280	Create a new coroutine, running the specified callback. The coroutine will
…		…
1976		3296
1977	$coro	3297	$coro
1978	}	3298	}
1979		3299
1980	cf::client->attach (	3300	cf::client->attach (
1981	on_destroy => sub {	3301	on_client_destroy => sub {
1982	my ($ns) = @_;	3302	my ($ns) = @_;
1983		3303
1984	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3304	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1985	},	3305	},
1986	);	3306	);
…		…
2001	our $safe = new Safe "safe";	3321	our $safe = new Safe "safe";
2002	our $safe_hole = new Safe::Hole;	3322	our $safe_hole = new Safe::Hole;
2003		3323
2004	$SIG{FPE} = 'IGNORE';	3324	$SIG{FPE} = 'IGNORE';
2005		3325
2006	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3326	$safe->permit_only (Opcode::opset qw(
		3327	:base_core :base_mem :base_orig :base_math :base_loop
		3328	grepstart grepwhile mapstart mapwhile
		3329	sort time
		3330	));
2007		3331
2008	# here we export the classes and methods available to script code	3332	# here we export the classes and methods available to script code
2009		3333
2010	=pod	3334	=pod
2011		3335
2012	The following fucntions and emthods are available within a safe environment:	3336	The following functions and methods are available within a safe environment:
2013		3337
2014	cf::object contr pay_amount pay_player map	3338	cf::object
		3339	contr pay_amount pay_player map x y force_find force_add destroy
		3340	insert remove name archname title slaying race decrease split
		3341	value
		3342
2015	cf::object::player player	3343	cf::object::player
2016	cf::player peaceful	3344	player
2017	cf::map trigger	3345
		3346	cf::player
		3347	peaceful
		3348
		3349	cf::map
		3350	trigger
2018		3351
2019	=cut	3352	=cut
2020		3353
2021	for (	3354	for (
2022	["cf::object" => qw(contr pay_amount pay_player map)],	3355	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3356	insert remove inv nrof name archname title slaying race
		3357	decrease split destroy change_exp value msg lore send_msg)],
2023	["cf::object::player" => qw(player)],	3358	["cf::object::player" => qw(player)],
2024	["cf::player" => qw(peaceful)],	3359	["cf::player" => qw(peaceful send_msg)],
2025	["cf::map" => qw(trigger)],	3360	["cf::map" => qw(trigger)],
2026	) {	3361	) {
2027	no strict 'refs';
2028	my ($pkg, @funs) = @$_;	3362	my ($pkg, @funs) = @$_;
2029	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3363	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2030	for @funs;	3364	for @funs;
2031	}	3365	}
2032		3366
…		…
2047		3381
2048	my $qcode = $code;	3382	my $qcode = $code;
2049	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3383	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2050	$qcode =~ s/\n/\\n/g;	3384	$qcode =~ s/\n/\\n/g;
2051		3385
		3386	%vars = (_dummy => 0) unless %vars;
		3387
		3388	my @res;
2052	local $_;	3389	local $_;
2053	local @safe::cf::_safe_eval_args = values %vars;
2054		3390
2055	my $eval =	3391	my $eval =
2056	"do {\n"	3392	"do {\n"
2057	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3393	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2058	. "#line 0 \"{$qcode}\"\n"	3394	. "#line 0 \"{$qcode}\"\n"
2059	. $code	3395	. $code
2060	. "\n}"	3396	. "\n}"
2061	;	3397	;
2062		3398
		3399	if ($CFG{safe_eval}) {
2063	sub_generation_inc;	3400	sub_generation_inc;
		3401	local @safe::cf::_safe_eval_args = values %vars;
2064	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3402	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2065	sub_generation_inc;	3403	sub_generation_inc;
		3404	} else {
		3405	local @cf::_safe_eval_args = values %vars;
		3406	@res = wantarray ? eval eval : scalar eval $eval;
		3407	}
2066		3408
2067	if ($@) {	3409	if ($@) {
2068	warn "$@";	3410	warn "$@",
2069	warn "while executing safe code '$code'\n";	3411	"while executing safe code '$code'\n",
2070	warn "with arguments " . (join " ", %vars) . "\n";	3412	"with arguments " . (join " ", %vars) . "\n";
2071	}	3413	}
2072		3414
2073	wantarray ? @res : $res[0]	3415	wantarray ? @res : $res[0]
2074	}	3416	}
2075		3417
…		…
2089	=cut	3431	=cut
2090		3432
2091	sub register_script_function {	3433	sub register_script_function {
2092	my ($fun, $cb) = @_;	3434	my ($fun, $cb) = @_;
2093		3435
2094	no strict 'refs';	3436	$fun = "safe::$fun" if $CFG{safe_eval};
2095	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3437	*$fun = $safe_hole->wrap ($cb);
2096	}	3438	}
2097		3439
2098	=back	3440	=back
2099		3441
2100	=cut	3442	=cut
2101		3443
2102	#############################################################################	3444	#############################################################################
		3445	# the server's init and main functions
2103		3446
2104	=head2 EXTENSION DATABASE SUPPORT	3447	sub load_facedata($) {
		3448	my ($path) = @_;
2105		3449
2106	Crossfire maintains a very simple database for extension use. It can	3450	# HACK to clear player env face cache, we need some signal framework
2107	currently store anything that can be serialised using Storable, which	3451	# for this (global event?)
2108	excludes objects.	3452	%ext::player_env::MUSIC_FACE_CACHE = ();
2109		3453
2110	The parameter C<$family> should best start with the name of the extension	3454	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2111	using it, it should be unique.
2112		3455
2113	=over 4	3456	trace "loading facedata from $path\n";
2114		3457
2115	=item $hashref = cf::db_get $family	3458	my $facedata = decode_storable load_file $path;
2116		3459
2117	Return a hashref for use by the extension C<$family>, which can be	3460	$facedata->{version} == 2
2118	modified. After modifications, you have to call C<cf::db_dirty> or	3461	or cf::cleanup "$path: version mismatch, cannot proceed.";
2119	C<cf::db_sync>.
2120		3462
2121	=item $value = cf::db_get $family => $key	3463	# patch in the exptable
2122		3464	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2123	Returns a single value from the database	3465	$facedata->{resource}{"res/exp_table"} = {
2124		3466	type => FT_RSRC,
2125	=item cf::db_put $family => $hashref	3467	data => $exp_table,
2126		3468	hash => (Digest::MD5::md5 $exp_table),
2127	Stores the given family hashref into the database. Updates are delayed, if
2128	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_put $family => $key => $value
2131
2132	Stores the given C<$value> in the family hash. Updates are delayed, if you
2133	want the data to be synced to disk immediately, use C<cf::db_sync>.
2134
2135	=item cf::db_dirty
2136
2137	Marks the database as dirty, to be updated at a later time.
2138
2139	=item cf::db_sync
2140
2141	Immediately write the database to disk I<if it is dirty>.
2142
2143	=cut
2144
2145	our $DB;
2146
2147	{
2148	my $path = cf::localdir . "/database.pst";
2149
2150	sub db_load() {
2151	$DB = stat $path ? Storable::retrieve $path : { };
2152	}
2153
2154	my $pid;
2155
2156	sub db_save() {
2157	waitpid $pid, 0 if $pid;
2158	if (0 == ($pid = fork)) {
2159	$DB->{_meta}{version} = 1;
2160	Storable::nstore $DB, "$path~";
2161	rename "$path~", $path;
2162	cf::_exit 0 if defined $pid;
2163	}
2164	}
2165
2166	my $dirty;
2167
2168	sub db_sync() {
2169	db_save if $dirty;
2170	undef $dirty;
2171	}
2172
2173	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2174	db_sync;
2175	});	3469	};
		3470	cf::cede_to_tick;
2176		3471
2177	sub db_dirty() {
2178	$dirty = 1;
2179	$idle->start;
2180	}	3472	{
		3473	my $faces = $facedata->{faceinfo};
2181		3474
2182	sub db_get($;$) {	3475	while (my ($face, $info) = each %$faces) {
2183	@_ >= 2	3476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2184	? $DB->{$_[0]}{$_[1]}
2185	: ($DB->{$_[0]} ||= { })
2186	}
2187		3477
2188	sub db_put($$;$) {	3478	cf::face::set_visibility $idx, $info->{visibility};
2189	if (@_ >= 3) {	3479	cf::face::set_magicmap $idx, $info->{magicmap};
2190	$DB->{$_[0]}{$_[1]} = $_[2];	3480	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2191	} else {	3481	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2192	$DB->{$_[0]} = $_[1];	3482	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2193	}
2194	db_dirty;
2195	}
2196		3483
2197	cf::global->attach (	3484	cf::cede_to_tick;
2198	prio => 10000,
2199	on_cleanup => sub {
2200	db_sync;
2201	},	3485	}
2202	);
2203	}
2204		3486
2205	#############################################################################	3487	while (my ($face, $info) = each %$faces) {
2206	# the server's main()	3488	next unless $info->{smooth};
2207		3489
2208	sub cfg_load {	3490	my $idx = cf::face::find $face
2209	open my $fh, "<:utf8", cf::confdir . "/config"	3491	or next;
2210	or return;
2211		3492
2212	local $/;	3493	if (my $smooth = cf::face::find $info->{smooth}) {
2213	*CFG = YAML::Syck::Load <$fh>;	3494	cf::face::set_smooth $idx, $smooth;
		3495	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3496	} else {
		3497	error "smooth face '$info->{smooth}' not found for face '$face'";
		3498	}
2214		3499
		3500	cf::cede_to_tick;
		3501	}
		3502	}
		3503
		3504	{
		3505	my $anims = $facedata->{animinfo};
		3506
		3507	while (my ($anim, $info) = each %$anims) {
		3508	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3509	cf::cede_to_tick;
		3510	}
		3511
		3512	cf::anim::invalidate_all; # d'oh
		3513	}
		3514
		3515	{
		3516	my $res = $facedata->{resource};
		3517
		3518	while (my ($name, $info) = each %$res) {
		3519	if (defined (my $type = delete $info->{type})) {
		3520	# TODO: different hash - must free and use new index, or cache ixface data queue
		3521	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3522
		3523	cf::face::set_data $idx, 0, delete $info->{data}, delete $info->{hash};
		3524	cf::face::set_type $idx, $type;
		3525	cf::face::set_meta $idx, (keys %$info && (~$type & 1)) ? $info : undef; # any keys left are stashed into meta unless prepended
		3526	} else {
		3527	# $RESOURCE{$name} = $info; # unused
		3528	}
		3529
		3530	cf::cede_to_tick;
		3531	}
		3532	}
		3533
		3534	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3535
		3536	1
		3537	}
		3538
		3539	register_exticmd fx_want => sub {
		3540	my ($ns, $want) = @_;
		3541
		3542	while (my ($k, $v) = each %$want) {
		3543	$ns->fx_want ($k, $v);
		3544	}
		3545	};
		3546
		3547	sub load_resource_file($) {
		3548	my $guard = lock_acquire "load_resource_file";
		3549
		3550	my $status = load_resource_file_ $_[0];
		3551	get_slot 0.1, 100;
		3552	cf::arch::commit_load;
		3553
		3554	$status
		3555	}
		3556
		3557	sub reload_regions {
		3558	# HACK to clear player env face cache, we need some signal framework
		3559	# for this (global event?)
		3560	%ext::player_env::MUSIC_FACE_CACHE = ();
		3561
		3562	load_resource_file "$MAPDIR/regions"
		3563	or die "unable to load regions file\n";
		3564
		3565	for (cf::region::list) {
		3566	$_->{match} = qr/$_->{match}/
		3567	if exists $_->{match};
		3568	}
		3569	}
		3570
		3571	sub reload_facedata {
		3572	load_facedata "$DATADIR/facedata"
		3573	or die "unable to load facedata\n";
		3574	}
		3575
		3576	sub reload_archetypes {
		3577	load_resource_file "$DATADIR/archetypes"
		3578	or die "unable to load archetypes\n";
		3579	}
		3580
		3581	sub reload_treasures {
		3582	load_resource_file "$DATADIR/treasures"
		3583	or die "unable to load treasurelists\n";
		3584	}
		3585
		3586	sub reload_sound {
		3587	trace "loading sound config from $DATADIR/sound\n";
		3588
		3589	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3590
		3591	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3592	my $sound = $soundconf->{compat}[$_]
		3593	or next;
		3594
		3595	my $face = cf::face::find "sound/$sound->[1]";
		3596	cf::sound::set $sound->[0] => $face;
		3597	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3598	}
		3599
		3600	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3601	my $face = cf::face::find "sound/$v";
		3602	cf::sound::set $k => $face;
		3603	}
		3604	}
		3605
		3606	sub reload_resources {
		3607	trace "reloading resource files...\n";
		3608
		3609	reload_exp_table;
		3610	reload_materials;
		3611	reload_facedata;
		3612	reload_sound;
		3613	reload_archetypes;
		3614	reload_regions;
		3615	reload_treasures;
		3616
		3617	trace "finished reloading resource files\n";
		3618	}
		3619
		3620	sub reload_config {
		3621	trace "reloading config file...\n";
		3622
		3623	my $config = load_file "$CONFDIR/config";
		3624	utf8::decode $config;
		3625	*CFG = decode_yaml $config;
		3626
2215	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3627	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2216		3628
2217	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3629	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2218	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3630	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2219		3631
2220	if (exists $CFG{mlockall}) {	3632	if (exists $CFG{mlockall}) {
…		…
2224	};	3636	};
2225	warn $@ if $@;	3637	warn $@ if $@;
2226	}	3638	}
2227	}	3639	}
2228		3640
		3641	sub pidfile() {
		3642	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3643	or die "$PIDFILE: $!";
		3644	flock $fh, &Fcntl::LOCK_EX
		3645	or die "$PIDFILE: flock: $!";
		3646	$fh
		3647	}
		3648
		3649	# make sure only one server instance is running at any one time
		3650	sub atomic {
		3651	my $fh = pidfile;
		3652
		3653	my $pid = <$fh>;
		3654	kill 9, $pid if $pid > 0;
		3655
		3656	seek $fh, 0, 0;
		3657	print $fh $$;
		3658	}
		3659
		3660	sub main_loop {
		3661	trace "EV::loop starting\n";
		3662	if (1) {
		3663	EV::loop;
		3664	}
		3665	trace "EV::loop returned\n";
		3666	goto &main_loop unless $REALLY_UNLOOP;
		3667	}
		3668
2229	sub main {	3669	sub main {
		3670	cf::init_globals; # initialise logging
		3671
		3672	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3673	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3674	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3675	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3676
		3677	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3678
2230	# we must not ever block the main coroutine	3679	# we must not ever block the main coroutine
2231	local $Coro::idle = sub {	3680	local $Coro::idle = sub {
2232	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3681	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2233	async { Event::one_event };	3682	(async {
		3683	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3684	EV::loop EV::LOOP_ONESHOT;
		3685	})->prio (Coro::PRIO_MAX);
2234	};	3686	};
2235		3687
2236	cfg_load;	3688	evthread_start IO::AIO::poll_fileno;
2237	db_load;	3689
		3690	cf::sync_job {
		3691	cf::incloader::init ();
		3692
		3693	cf::init_anim;
		3694	cf::init_attackmess;
		3695	cf::init_dynamic;
		3696
		3697	cf::load_settings;
		3698
		3699	reload_resources;
		3700	reload_config;
		3701	db_init;
		3702
		3703	cf::init_uuid;
		3704	cf::init_signals;
		3705	cf::init_skills;
		3706
		3707	cf::init_beforeplay;
		3708
		3709	atomic;
		3710
2238	load_extensions;	3711	load_extensions;
2239	Event::loop;	3712
		3713	utime time, time, $RUNTIMEFILE;
		3714
		3715	# no (long-running) fork's whatsoever before this point(!)
		3716	use POSIX ();
		3717	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3718
		3719	cf::_post_init 0;
		3720	};
		3721
		3722	cf::object::thawer::errors_are_fatal 0;
		3723	info "parse errors in files are no longer fatal from this point on.\n";
		3724
		3725	AE::postpone {
		3726	undef &main; # free gobs of memory :)
		3727	};
		3728
		3729	goto &main_loop;
2240	}	3730	}
2241		3731
2242	#############################################################################	3732	#############################################################################
2243	# initialisation and cleanup	3733	# initialisation and cleanup
2244		3734
2245	# install some emergency cleanup handlers	3735	# install some emergency cleanup handlers
2246	BEGIN {	3736	BEGIN {
		3737	our %SIGWATCHER = ();
2247	for my $signal (qw(INT HUP TERM)) {	3738	for my $signal (qw(INT HUP TERM)) {
2248	Event->signal (	3739	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2249	data => WF_AUTOCANCEL,
2250	signal => $signal,
2251	cb => sub {
2252	cf::cleanup "SIG$signal";	3740	cf::cleanup "SIG$signal";
2253	},
2254	);	3741	};
		3742	}
		3743	}
		3744
		3745	sub write_runtime_sync {
		3746	my $t0 = AE::time;
		3747
		3748	# first touch the runtime file to show we are still running:
		3749	# the fsync below can take a very very long time.
		3750
		3751	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3752
		3753	my $guard = cf::lock_acquire "write_runtime";
		3754
		3755	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3756	or return;
		3757
		3758	my $value = $cf::RUNTIME + 90 + 10;
		3759	# 10 is the runtime save interval, for a monotonic clock
		3760	# 60 allows for the watchdog to kill the server.
		3761
		3762	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3763	and return;
		3764
		3765	# always fsync - this file is important
		3766	aio_fsync $fh
		3767	and return;
		3768
		3769	# touch it again to show we are up-to-date
		3770	aio_utime $fh, undef, undef;
		3771
		3772	close $fh
		3773	or return;
		3774
		3775	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3776	and return;
		3777
		3778	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3779
2255	}	3780	1
		3781	}
		3782
		3783	our $uuid_lock;
		3784	our $uuid_skip;
		3785
		3786	sub write_uuid_sync($) {
		3787	$uuid_skip ||= $_[0];
		3788
		3789	return if $uuid_lock;
		3790	local $uuid_lock = 1;
		3791
		3792	my $uuid = "$LOCALDIR/uuid";
		3793
		3794	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3795	or return;
		3796
		3797	my $value = uuid_seq uuid_cur;
		3798
		3799	unless ($value) {
		3800	info "cowardly refusing to write zero uuid value!\n";
		3801	return;
		3802	}
		3803
		3804	my $value = uuid_str $value + $uuid_skip;
		3805	$uuid_skip = 0;
		3806
		3807	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3808	and return;
		3809
		3810	# always fsync - this file is important
		3811	aio_fsync $fh
		3812	and return;
		3813
		3814	close $fh
		3815	or return;
		3816
		3817	aio_rename "$uuid~", $uuid
		3818	and return;
		3819
		3820	trace "uuid file written ($value).\n";
		3821
		3822	1
		3823
		3824	}
		3825
		3826	sub write_uuid($$) {
		3827	my ($skip, $sync) = @_;
		3828
		3829	$sync ? write_uuid_sync $skip
		3830	: async { write_uuid_sync $skip };
2256	}	3831	}
2257		3832
2258	sub emergency_save() {	3833	sub emergency_save() {
2259	my $freeze_guard = cf::freeze_mainloop;	3834	my $freeze_guard = cf::freeze_mainloop;
2260		3835
2261	warn "enter emergency perl save\n";	3836	info "emergency_perl_save: enter\n";
		3837
		3838	# this is a trade-off: we want to be very quick here, so
		3839	# save all maps without fsync, and later call a global sync
		3840	# (which in turn might be very very slow)
		3841	local $USE_FSYNC = 0;
2262		3842
2263	cf::sync_job {	3843	cf::sync_job {
		3844	cf::write_runtime_sync; # external watchdog should not bark
		3845
2264	# use a peculiar iteration method to avoid tripping on perl	3846	# use a peculiar iteration method to avoid tripping on perl
2265	# refcount bugs in for. also avoids problems with players	3847	# refcount bugs in for. also avoids problems with players
2266	# and maps saved/destroyed asynchronously.	3848	# and maps saved/destroyed asynchronously.
2267	warn "begin emergency player save\n";	3849	info "emergency_perl_save: begin player save\n";
2268	for my $login (keys %cf::PLAYER) {	3850	for my $login (keys %cf::PLAYER) {
2269	my $pl = $cf::PLAYER{$login} or next;	3851	my $pl = $cf::PLAYER{$login} or next;
2270	$pl->valid or next;	3852	$pl->valid or next;
		3853	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2271	$pl->save;	3854	$pl->save;
2272	}	3855	}
2273	warn "end emergency player save\n";	3856	info "emergency_perl_save: end player save\n";
2274		3857
2275	warn "begin emergency map save\n";	3858	cf::write_runtime_sync; # external watchdog should not bark
		3859
		3860	info "emergency_perl_save: begin map save\n";
2276	for my $path (keys %cf::MAP) {	3861	for my $path (keys %cf::MAP) {
2277	my $map = $cf::MAP{$path} or next;	3862	my $map = $cf::MAP{$path} or next;
2278	$map->valid or next;	3863	$map->valid or next;
2279	$map->save;	3864	$map->save;
2280	}	3865	}
2281	warn "end emergency map save\n";	3866	info "emergency_perl_save: end map save\n";
		3867
		3868	cf::write_runtime_sync; # external watchdog should not bark
		3869
		3870	info "emergency_perl_save: begin database checkpoint\n";
		3871	BDB::db_env_txn_checkpoint $DB_ENV;
		3872	info "emergency_perl_save: end database checkpoint\n";
		3873
		3874	info "emergency_perl_save: begin write uuid\n";
		3875	write_uuid_sync 1;
		3876	info "emergency_perl_save: end write uuid\n";
		3877
		3878	cf::write_runtime_sync; # external watchdog should not bark
		3879
		3880	trace "emergency_perl_save: syncing database to disk";
		3881	BDB::db_env_txn_checkpoint $DB_ENV;
		3882
		3883	info "emergency_perl_save: starting sync\n";
		3884	IO::AIO::aio_sync sub {
		3885	info "emergency_perl_save: finished sync\n";
		3886	};
		3887
		3888	cf::write_runtime_sync; # external watchdog should not bark
		3889
		3890	trace "emergency_perl_save: flushing outstanding aio requests";
		3891	while (IO::AIO::nreqs || BDB::nreqs) {
		3892	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3893	}
		3894
		3895	cf::write_runtime_sync; # external watchdog should not bark
2282	};	3896	};
2283		3897
2284	warn "leave emergency perl save\n";	3898	info "emergency_perl_save: leave\n";
2285	}	3899	}
2286		3900
		3901	sub post_cleanup {
		3902	my ($make_core) = @_;
		3903
		3904	IO::AIO::flush;
		3905
		3906	error Carp::longmess "post_cleanup backtrace"
		3907	if $make_core;
		3908
		3909	my $fh = pidfile;
		3910	unlink $PIDFILE if <$fh> == $$;
		3911	}
		3912
		3913	# a safer delete_package, copied from Symbol
		3914	sub clear_package($) {
		3915	my $pkg = shift;
		3916
		3917	# expand to full symbol table name if needed
		3918	unless ($pkg =~ /^main::.*::$/) {
		3919	$pkg = "main$pkg" if $pkg =~ /^::/;
		3920	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3921	$pkg .= '::' unless $pkg =~ /::$/;
		3922	}
		3923
		3924	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3925	my $stem_symtab = *{$stem}{HASH};
		3926
		3927	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3928	or return;
		3929
		3930	# clear all symbols
		3931	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3932	for my $name (keys %$leaf_symtab) {
		3933	_gv_clear *{"$pkg$name"};
		3934	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3935	}
		3936	}
		3937
2287	sub reload() {	3938	sub do_reload_perl() {
2288	# can/must only be called in main	3939	# can/must only be called in main
2289	if ($Coro::current != $Coro::main) {	3940	unless (in_main) {
2290	warn "can only reload from main coroutine\n";	3941	error "can only reload from main coroutine";
2291	return;	3942	return;
2292	}	3943	}
2293		3944
2294	warn "reloading...";	3945	return if $RELOAD++;
2295		3946
2296	warn "freezing server";	3947	my $t1 = AE::time;
2297	my $guard = freeze_mainloop;	3948
		3949	while ($RELOAD) {
		3950	cf::get_slot 0.1, -1, "reload_perl";
		3951	info "perl_reload: reloading...";
		3952
		3953	trace "perl_reload: entering sync_job";
		3954
		3955	cf::sync_job {
2298	cf::emergency_save;	3956	#cf::emergency_save;
2299		3957
2300	warn "sync database to disk";	3958	trace "perl_reload: cancelling all extension coros";
2301	cf::db_sync;
2302	IO::AIO::flush;
2303
2304	eval {
2305	# if anything goes wrong in here, we should simply crash as we already saved
2306
2307	warn "cancel all watchers";
2308	for (Event::all_watchers) {
2309	$_->cancel if $_->data & WF_AUTOCANCEL;
2310	}
2311
2312	warn "cancel all extension coros";
2313	$_->cancel for values %EXT_CORO;	3959	$_->cancel for values %EXT_CORO;
2314	%EXT_CORO = ();	3960	%EXT_CORO = ();
2315		3961
2316	warn "remove commands";	3962	trace "perl_reload: removing commands";
2317	%COMMAND = ();	3963	%COMMAND = ();
2318		3964
2319	warn "remove ext commands";	3965	trace "perl_reload: removing ext/exti commands";
2320	%EXTCMD = ();	3966	%EXTCMD = ();
		3967	%EXTICMD = ();
2321		3968
2322	warn "unload/nuke all extensions";	3969	trace "perl_reload: unloading/nuking all extensions";
2323	for my $pkg (@EXTS) {	3970	for my $pkg (@EXTS) {
2324	warn "... unloading $pkg";	3971	trace "... unloading $pkg";
2325		3972
2326	if (my $cb = $pkg->can ("unload")) {	3973	if (my $cb = $pkg->can ("unload")) {
2327	eval {	3974	eval {
2328	$cb->($pkg);	3975	$cb->($pkg);
2329	1	3976	1
2330	} or warn "$pkg unloaded, but with errors: $@";	3977	} or error "$pkg unloaded, but with errors: $@";
		3978	}
		3979
		3980	trace "... clearing $pkg";
		3981	clear_package $pkg;
2331	}	3982	}
2332		3983
2333	warn "... nuking $pkg";
2334	Symbol::delete_package $pkg;
2335	}
2336
2337	warn "unload all perl modules loaded from $LIBDIR";	3984	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2338	while (my ($k, $v) = each %INC) {	3985	while (my ($k, $v) = each %INC) {
2339	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3986	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2340		3987
2341	warn "removing <$k>";	3988	trace "... unloading $k";
2342	delete $INC{$k};	3989	delete $INC{$k};
2343		3990
2344	$k =~ s/\.pm$//;	3991	$k =~ s/\.pm$//;
2345	$k =~ s/\//::/g;	3992	$k =~ s/\//::/g;
2346		3993
2347	if (my $cb = $k->can ("unload_module")) {	3994	if (my $cb = $k->can ("unload_module")) {
2348	$cb->();	3995	$cb->();
		3996	}
		3997
		3998	clear_package $k;
2349	}	3999	}
2350		4000
2351	Symbol::delete_package $k;
2352	}
2353
2354	warn "get rid of safe::, as good as possible";	4001	trace "perl_reload: getting rid of safe::, as good as possible";
2355	Symbol::delete_package "safe::$_"	4002	clear_package "safe::$_"
2356	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4003	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2357		4004
2358	warn "unload cf.pm \"a bit\"";	4005	trace "perl_reload: unloading cf.pm \"a bit\"";
2359	delete $INC{"cf.pm"};	4006	delete $INC{"cf.pm"};
		4007	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2360		4008
2361	# don't, removes xs symbols, too,	4009	# don't, removes xs symbols, too,
2362	# and global variables created in xs	4010	# and global variables created in xs
2363	#Symbol::delete_package __PACKAGE__;	4011	#clear_package __PACKAGE__;
2364		4012
2365	warn "reloading cf.pm";	4013	info "perl_reload: unload completed, starting to reload now";
		4014
		4015	trace "perl_reload: reloading cf.pm";
2366	require cf;	4016	require cf;
2367	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4017	cf::_connect_to_perl_1;
2368		4018
2369	warn "load config and database again";	4019	trace "perl_reload: loading config and database again";
2370	cf::cfg_load;	4020	cf::reload_config;
2371	cf::db_load;
2372		4021
2373	warn "load extensions";	4022	trace "perl_reload: loading extensions";
2374	cf::load_extensions;	4023	cf::load_extensions;
2375		4024
		4025	if ($REATTACH_ON_RELOAD) {
2376	warn "reattach attachments to objects/players";	4026	trace "perl_reload: reattaching attachments to objects/players";
2377	_global_reattach;	4027	_global_reattach; # objects, sockets
2378	warn "reattach attachments to maps";	4028	trace "perl_reload: reattaching attachments to maps";
2379	reattach $_ for values %MAP;	4029	reattach $_ for values %MAP;
		4030	trace "perl_reload: reattaching attachments to players";
		4031	reattach $_ for values %PLAYER;
		4032	}
		4033
		4034	cf::_post_init 1;
		4035
		4036	trace "perl_reload: leaving sync_job";
		4037
		4038	1
		4039	} or do {
		4040	error $@;
		4041	cf::cleanup "perl_reload: error, exiting.";
		4042	};
		4043
		4044	--$RELOAD;
		4045	}
		4046
		4047	$t1 = AE::time - $t1;
		4048	info "perl_reload: completed in ${t1}s\n";
		4049	};
		4050
		4051	our $RELOAD_WATCHER; # used only during reload
		4052
		4053	sub reload_perl() {
		4054	# doing reload synchronously and two reloads happen back-to-back,
		4055	# coro crashes during coro_state_free->destroy here.
		4056
		4057	$RELOAD_WATCHER ||= cf::async {
		4058	Coro::AIO::aio_wait cache_extensions;
		4059
		4060	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4061	do_reload_perl;
		4062	undef $RELOAD_WATCHER;
		4063	};
2380	};	4064	};
2381		4065	}
2382	if ($@) {
2383	warn $@;
2384	warn "error while reloading, exiting.";
2385	exit 1;
2386	}
2387
2388	warn "reloaded";
2389	};
2390		4066
2391	register_command "reload" => sub {	4067	register_command "reload" => sub {
2392	my ($who, $arg) = @_;	4068	my ($who, $arg) = @_;
2393		4069
2394	if ($who->flag (FLAG_WIZ)) {	4070	if ($who->flag (FLAG_WIZ)) {
2395	$who->message ("start of reload.");
2396	reload;
2397	$who->message ("end of reload.");	4071	$who->message ("reloading server.");
		4072	async {
		4073	$Coro::current->{desc} = "perl_reload";
		4074	reload_perl;
		4075	};
2398	}	4076	}
2399	};	4077	};
2400		4078
2401	unshift @INC, $LIBDIR;	4079	#############################################################################
2402		4080
2403	$TICK_WATCHER = Event->timer (	4081	my $bug_warning = 0;
2404	reentrant => 0,
2405	prio => 0,
2406	at => $NEXT_TICK || $TICK,
2407	data => WF_AUTOCANCEL,
2408	cb => sub {
2409	$NOW = Event::time;
2410		4082
2411	cf::server_tick; # one server iteration	4083	sub wait_for_tick() {
2412	$RUNTIME += $TICK;	4084	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2413	$NEXT_TICK += $TICK;
2414		4085
		4086	$WAIT_FOR_TICK->wait;
		4087	}
		4088
		4089	sub wait_for_tick_begin() {
		4090	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4091
		4092	my $signal = new Coro::Signal;
		4093	push @WAIT_FOR_TICK_BEGIN, $signal;
		4094	$signal->wait;
		4095	}
		4096
		4097	sub tick {
		4098	if ($Coro::current != $Coro::main) {
		4099	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4100	unless ++$bug_warning > 10;
		4101	return;
		4102	}
		4103
		4104	cf::one_tick; # one server iteration
		4105
		4106	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4107
		4108	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4109	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4110	Coro::async_pool {
		4111	$Coro::current->{desc} = "runtime saver";
		4112	write_runtime_sync
		4113	or error "ERROR: unable to write runtime file: $!";
		4114	};
		4115	}
		4116
		4117	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4118	$sig->send;
		4119	}
2415	$WAIT_FOR_TICK->broadcast;	4120	$WAIT_FOR_TICK->broadcast;
2416	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2417		4121
2418	# if we are delayed by four ticks or more, skip them all	4122	$LOAD = ($NOW - $TICK_START) / $TICK;
2419	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2420		4124
2421	$TICK_WATCHER->at ($NEXT_TICK);	4125	if (0) {
2422	$TICK_WATCHER->start;	4126	if ($NEXT_TICK) {
		4127	my $jitter = $TICK_START - $NEXT_TICK;
		4128	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4129	debug "jitter $JITTER\n";#d#
		4130	}
2423	},	4131	}
2424	);	4132	}
2425		4133
		4134	{
		4135	# configure BDB
		4136
		4137	BDB::min_parallel 16;
		4138	BDB::max_poll_reqs $TICK * 0.1;
		4139	#$AnyEvent::BDB::WATCHER->priority (1);
		4140
		4141	unless ($DB_ENV) {
		4142	$DB_ENV = BDB::db_env_create;
		4143	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4144	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4145	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4146	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4147	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4148
		4149	cf::sync_job {
		4150	eval {
		4151	BDB::db_env_open
		4152	$DB_ENV,
		4153	$BDBDIR,
		4154	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4155	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4156	0666;
		4157
		4158	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4159	};
		4160
		4161	cf::cleanup "db_env_open(db): $@" if $@;
		4162	};
		4163	}
		4164
		4165	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4166	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4167	};
		4168	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4169	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4170	};
		4171	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4172	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4173	};
		4174	}
		4175
		4176	{
		4177	# configure IO::AIO
		4178
		4179	IO::AIO::min_parallel 8;
2426	IO::AIO::max_poll_time $TICK * 0.2;	4180	IO::AIO::max_poll_time $TICK * 0.1;
		4181	undef $AnyEvent::AIO::WATCHER;
		4182	}
2427		4183
2428	$AIO_POLL_WATCHER = Event->io (	4184	our $_log_backtrace;
2429	fd => IO::AIO::poll_fileno,	4185	our $_log_backtrace_last;
2430	poll => 'r',
2431	prio => 5,
2432	data => WF_AUTOCANCEL,
2433	cb => \&IO::AIO::poll_cb,
2434	);
2435		4186
2436	$WRITE_RUNTIME_WATCHER = Event->timer (	4187	sub _log_backtrace {
2437	data => WF_AUTOCANCEL,	4188	my ($msg, @addr) = @_;
2438	after => 0,	4189
2439	interval => 10,	4190	$msg =~ s/\n$//;
2440	cb => sub {	4191
2441	(Coro::unblock_sub {	4192	if ($_log_backtrace_last eq $msg) {
2442	write_runtime	4193	LOG llevInfo, "[ABT] $msg\n";
2443	or warn "ERROR: unable to write runtime file: $!";	4194	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4195	# limit the # of concurrent backtraces
		4196	} elsif ($_log_backtrace < 2) {
		4197	$_log_backtrace_last = $msg;
		4198	++$_log_backtrace;
		4199	my $perl_bt = Carp::longmess $msg;
		4200	async {
		4201	$Coro::current->{desc} = "abt $msg";
		4202
		4203	my @bt = fork_call {
		4204	@addr = map { sprintf "%x", $_ } @addr;
		4205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4207	or die "addr2line: $!";
		4208
		4209	my @funcs;
		4210	my @res = <$fh>;
		4211	chomp for @res;
		4212	while (@res) {
		4213	my ($func, $line) = splice @res, 0, 2, ();
		4214	push @funcs, "[$func] $line";
		4215	}
		4216
		4217	@funcs
		4218	};
		4219
		4220	LOG llevInfo, "[ABT] $perl_bt\n";
		4221	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4222	LOG llevInfo, "[ABT] $_\n" for @bt;
		4223	--$_log_backtrace;
2444	})->();	4224	};
		4225	} else {
		4226	LOG llevInfo, "[ABT] $msg\n";
		4227	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2445	},	4228	}
2446	);	4229	}
		4230
		4231	# load additional modules
		4232	require "cf/$_.pm" for @EXTRA_MODULES;
		4233	cf::_connect_to_perl_2;
2447		4234
2448	END { cf::emergency_save }	4235	END { cf::emergency_save }
2449		4236
2450	1	4237	1
2451		4238

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