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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.191 by root, Tue Jan 23 01:05:18 2007 UTC vs.
Revision 1.576 by root, Tue Jan 3 02:08:49 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 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 3.4 ();	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 + 90 + 10;	690	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		691
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	692	sub post_fork {
359	and return;	693	reset_signals;
		694	}
360		695
361	aio_fsync $fh	696	sub fork_call(&@) {
362	and return;	697	my ($cb, @args) = @_;
363		698
364	close $fh	699	# we seemingly have to make a local copy of the whole thing,
365	or return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
366		702
367	aio_rename "$runtime~", $runtime	703	my @res = Coro::Util::fork_eval {
368	and return;	704	cf::post_fork;
		705	&$cb
		706	} @args;
369		707
		708	wantarray ? @res : $res[-1]
		709	}
		710
		711	sub objinfo {
370	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 });
371	}	886	}
372		887
373	=back	888	=back
374		889
375	=cut	890	=cut
376		891
377	#############################################################################	892	#############################################################################
378		893
379	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
380		895
381	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
382	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")
383	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
384		899
385	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>
386	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
387	crossfire+).	902	Deliantra).
388		903
389	=over 4	904	=over 4
390		905
391	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
392		907
…		…
436	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
437		952
438	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
439	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
440		955
441	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
442	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.
443		958
444	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
445		960
446	=over 4	961	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
556		1071
557	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		1076
562	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
564		1079
565	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
570		1085
571	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
572	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
573		1088
574	} elsif (ref $type) {	1089	} elsif (ref $type) {
575	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
576		1091
577	} else {	1092	} else {
578	shift @arg;	1093	shift @arg;
579	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
580	}	1095	}
581	}	1096	}
582	}	1097	}
583		1098
584	sub _object_attach {	1099	sub _object_attach {
…		…
594	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
595	}	1110	}
596		1111
597	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
598	} else {	1113	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
600	}	1115	}
601		1116
602	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
603	}	1118	}
604		1119
…		…
606	if (ref $_[0]) {	1121	if (ref $_[0]) {
607	_object_attach @_;	1122	_object_attach @_;
608	} else {	1123	} else {
609	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
610	}	1125	}
		1126	_recalc_want;
611	};	1127	};
612		1128
613	# all those should be optimised	1129	# all those should be optimised
614	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
619	reattach ($obj);	1135	reattach ($obj);
620	} else {	1136	} else {
621	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
622	}	1138	}
		1139	_recalc_want;
623	};	1140	};
624		1141
625	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
627		1144
…		…
642	";	1159	";
643	die if $@;	1160	die if $@;
644	}	1161	}
645		1162
646	our $override;	1163	our $override;
647	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?
648		1165
649	sub override {	1166	sub override {
650	$override = 1;	1167	$override = 1;
651	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
652	}	1169	}
653		1170
654	sub do_invoke {	1171	sub do_invoke {
655	my $event = shift;	1172	my $event = shift;
656	my $callbacks = shift;	1173	my $callbacks = shift;
657		1174
658	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
659		1176
660	local $override;	1177	local $override;
661		1178
662	for (@$callbacks) {	1179	for (@$callbacks) {
663	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
664		1181
665	if ($@) {	1182	if ($@) {
666	warn "$@";
667	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
668	override;	1184	override;
669	}	1185	}
670		1186
671	return 1 if $override;	1187	return 1 if $override;
672	}	1188	}
673		1189
674	0	1190	0
675	}	1191	}
676		1192
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1194
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1196
681	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
682		1198
683	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
684	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
685	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1202
687	=back	1203	=back
688		1204
689	=cut	1205	=cut
690		1206
691	#############################################################################	1207	#############################################################################
692	# 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	}
693		1251
694	sub reattach {	1252	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1254	my ($obj) = @_;
697		1255
		1256	# no longer needed after getting rid of delete_package?
698	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
699		1258
700	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
701		1260
702	@$registry = ();	1261	@$registry = ();
703		1262
…		…
708	for (@$attach) {	1267	for (@$attach) {
709	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
710	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
711	}	1270	}
712	} else {	1271	} else {
713	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
714	}	1273	}
715	}	1274	}
716	}	1275	}
717		1276
718	cf::attachable->attach (	1277	cf::attachable->attach (
719	prio => -1000000,	1278	prio => -1000000,
720	on_instantiate => sub {	1279	on_instantiate => sub {
721	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
722		1281
723	$data = from_json $data;	1282	$data = decode_json $data;
724		1283
725	for (@$data) {	1284	for (@$data) {
726	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
727		1286
728	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1303	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
746		1305
747	sync_job {	1306	sync_job {
748	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
751		1312
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$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;
755	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
756	close $fh;	1320	aio_close $fh;
757		1321
758	if (@$objs) {	1322	if (@$objs) {
759	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) {
760	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	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;
763	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
764	close $fh;	1331	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
766	}	1333	}
767	} else {	1334	} else {
768	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
769	}	1336	}
770		1337
771	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
772	} else {	1342	} else {
773	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
774	}	1344	}
775	} else {	1345	} else {
776	aio_unlink $filename;	1346	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
778	}	1348	}
779	}	1349	};
780	}	1350	}
781		1351
782	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
784		1354
…		…
796	or return;	1366	or return;
797		1367
798	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
800	or return;	1370	or return;
		1371
801	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
802	}	1374	}
803		1375
		1376	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
806	return ($data, $av);	1381	($data, $av)
807	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
808		1389
809	#############################################################################	1390	#############################################################################
810	# command handling &c	1391	# command handling &c
811		1392
812	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1407	}
827		1408
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1410
830	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.
831		1416
832	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
833	called.	1418	called.
834		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
835	=cut	1431	=cut
836		1432
837	sub register_extcmd {	1433	sub register_extcmd {
838	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
839		1435
840	$EXTCMD{$name} = $cb;	1436	$EXTCMD{$name} = $cb;
841	}	1437	}
842		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
		1446
843	cf::player->attach (	1447	cf::player->attach (
844	on_command => sub {	1448	on_unknown_command => sub {
845	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
846		1450
847	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
848	or return;	1452	or return;
849		1453
…		…
854	cf::override;	1458	cf::override;
855	},	1459	},
856	on_extcmd => sub {	1460	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
858		1462
859	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1464
861	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1467
		1468	my @reply;
		1469
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1470	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1471	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1472	}
		1473
		1474	$pl->ext_reply ($reply, @reply)
		1475	if $reply;
		1476
867	} else {	1477	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1478	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1479	}
870		1480
871	cf::override;	1481	cf::override;
872	},	1482	},
873	);	1483	);
874		1484
		1485	# "readahead" all extensions
875	sub load_extension {	1486	sub cache_extensions {
876	my ($path) = @_;	1487	my $grp = IO::AIO::aio_group;
877		1488
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1489	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
879	my $base = $1;	1490	for (grep /\.ext$/, @{$_[0]}) {
880	my $pkg = $1;	1491	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}	1492	}
903	die $@;
904	}	1493	};
905		1494
906	push @EXTS, $pkg;	1495	$grp
907	}	1496	}
908		1497
909	sub load_extensions {	1498	sub load_extensions {
		1499	info "loading extensions...";
		1500
		1501	cf::sync_job {
		1502	my %todo;
		1503
910	for my $ext (<$LIBDIR/*.ext>) {	1504	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1505	next unless -r $path;
912	eval {	1506
913	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	}
914	1	1570	}
915	} 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	}
916	}	1583	};
917	}	1584	}
918		1585
919	#############################################################################	1586	#############################################################################
920		1587
		1588	=back
		1589
921	=head2 CORE EXTENSIONS	1590	=head2 CORE EXTENSIONS
922		1591
923	Functions and methods that extend core crossfire objects.	1592	Functions and methods that extend core deliantra objects.
924		1593
925	=cut	1594	=cut
926		1595
927	package cf::player;	1596	package cf::player;
928		1597
…		…
930		1599
931	=head3 cf::player	1600	=head3 cf::player
932		1601
933	=over 4	1602	=over 4
934		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
935	=item cf::player::find $login	1618	=item cf::player::find $login
936		1619
937	Returns the given player object, loading it if necessary (might block).	1620	Returns the given player object, loading it if necessary (might block).
938		1621
939	=cut	1622	=cut
940		1623
941	sub playerdir($) {	1624	sub playerdir($) {
942	cf::localdir	1625	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1626	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1627	}
948		1628
949	sub path($) {	1629	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1630	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1631
952	(playerdir $login) . "/$login.pl"	1632	(playerdir $login) . "/playerdata"
953	}	1633	}
954		1634
955	sub find_active($) {	1635	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1636	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1637	and $cf::PLAYER{$_[0]}->active
…		…
960		1640
961	sub exists($) {	1641	sub exists($) {
962	my ($login) = @_;	1642	my ($login) = @_;
963		1643
964	$cf::PLAYER{$login}	1644	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1645	or !aio_stat path $login
966	}	1646	}
967		1647
968	sub find($) {	1648	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1649	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1650	my $login = $_[0];
971		1651
972	my $guard = cf::lock_acquire "user_find:$login";	1652	my $guard = cf::lock_acquire "user_find:$login";
973		1653
974	$cf::PLAYER{$_[0]} || do {	1654	$cf::PLAYER{$_[0]} || do {
975	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
976	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;
977	$cf::PLAYER{$login} = $pl	1670	$cf::PLAYER{$login} = $pl
978	}	1671	}
979	}	1672	}
980	}	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	);
981		1687
982	sub save($) {	1688	sub save($) {
983	my ($pl) = @_;	1689	my ($pl) = @_;
984		1690
985	return if $pl->{deny_save};	1691	return if $pl->{deny_save};
…		…
990	return if $pl->{deny_save};	1696	return if $pl->{deny_save};
991		1697
992	aio_mkdir playerdir $pl, 0770;	1698	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1699	$pl->{last_save} = $cf::RUNTIME;
994		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
995	$pl->save_pl ($path);	1706	$pl->save_pl ($path);
996	Coro::cede;	1707	cf::cede_to_tick;
997	}	1708	}
998		1709
999	sub new($) {	1710	sub new($) {
1000	my ($login) = @_;	1711	my ($login) = @_;
1001		1712
…		…
1007	$cf::PLAYER{$login} = $self;	1718	$cf::PLAYER{$login} = $self;
1008		1719
1009	$self	1720	$self
1010	}	1721	}
1011		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
1012	=item $pl->quit_character	1733	=item $pl->quit_character
1013		1734
1014	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
1015	be destroyed. May block for a long time.	1736	be destroyed. May block for a long time.
1016		1737
1017	=cut	1738	=cut
1018		1739
1019	sub quit_character {	1740	sub quit_character {
1020	my ($pl) = @_;	1741	my ($pl) = @_;
1021		1742
		1743	my $name = $pl->ob->name;
		1744
1022	$pl->{deny_save} = 1;	1745	$pl->{deny_save} = 1;
1023	$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
1024		1747
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1748	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1026	$pl->deactivate;	1749	$pl->deactivate;
		1750
		1751	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1752	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1753	ext::highscore::check ($pl->ob);
		1754
1028	$pl->ns->destroy if $pl->ns;	1755	$pl->ns->destroy if $pl->ns;
1029		1756
1030	my $path = playerdir $pl;	1757	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1758	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1759	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1760	delete $cf::PLAYER{$pl->ob->name};
1034	$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
1035	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;
1036	}	1783	}
1037		1784
1038	=item cf::player::list_logins	1785	=item cf::player::list_logins
1039		1786
1040	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
1041	while and may block, so not sync_job-capable, ever.	1788	while and may block, so not sync_job-capable, ever.
1042		1789
1043	=cut	1790	=cut
1044		1791
1045	sub list_logins {	1792	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1793	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1794	or return [];
1048		1795
1049	my @logins;	1796	my @logins;
1050		1797
1051	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") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1804	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1805	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1806	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1807	}
1055		1808
1056	utf8::decode $login;	1809	utf8::decode $login;
1057	push @logins, $login;	1810	push @logins, $login;
1058	}	1811	}
1059		1812
1060	\@logins	1813	\@logins
1061	}	1814	}
1062		1815
1063	=item $player->maps	1816	=item $player->maps
1064		1817
		1818	=item cf::player::maps $login
		1819
1065	Returns an arrayref of map paths that are private for this	1820	Returns an arrayref of map paths that are private for this
1066	player. May block.	1821	player. May block.
1067		1822
1068	=cut	1823	=cut
1069		1824
1070	sub maps($) {	1825	sub maps($) {
1071	my ($pl) = @_;	1826	my ($pl) = @_;
		1827
		1828	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1829
1073	my $files = aio_readdir playerdir $pl	1830	my $files = aio_readdir playerdir $pl
1074	or return;	1831	or return;
1075		1832
1076	my @paths;	1833	my @paths;
…		…
1078	for (@$files) {	1835	for (@$files) {
1079	utf8::decode $_;	1836	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1837	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1838	next unless /^$PATH_SEP/o;
1082		1839
1083	s/\.map$//;	1840	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1841	}
1086		1842
1087	\@paths	1843	\@paths
1088	}	1844	}
1089		1845
		1846	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1847
		1848	Expand deliantra pod fragments into protocol xml.
		1849
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1850	=item $player->ext_reply ($msgid, @msg)
1091		1851
1092	Sends an ext reply to the player.	1852	Sends an ext reply to the player.
1093		1853
1094	=cut	1854	=cut
1095		1855
1096	sub ext_reply($$$%) {	1856	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1857	my ($self, $id, @msg) = @_;
1098		1858
1099	$msg{msgid} = $id;	1859	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1860	}
1103		1861
1104	package cf;	1862	=item $player->ext_msg ($type, @msg)
		1863
		1864	Sends an ext event to the client.
		1865
		1866	=cut
		1867
		1868	sub ext_msg($$@) {
		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	}
1105		1904
1106	=back	1905	=back
1107
1108		1906
1109	=head3 cf::map	1907	=head3 cf::map
1110		1908
1111	=over 4	1909	=over 4
1112		1910
…		…
1124	our $MAX_RESET = 3600;	1922	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1923	our $DEFAULT_RESET = 3000;
1126		1924
1127	sub generate_random_map {	1925	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1926	my ($self, $rmp) = @_;
1129	# mit "rum" bekleckern, nicht	1927
		1928	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1929
1130	$self->_create_random_map (	1930	$self->_create_random_map ($rmp);
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region}), $rmp->{custom}
1142	)
1143	}	1931	}
1144		1932
1145	=item cf::map->register ($regex, $prio)	1933	=item cf::map->register ($regex, $prio)
1146		1934
1147	Register a handler for the map path matching the given regex at the	1935	Register a handler for the map path matching the given regex at the
…		…
1152		1940
1153	sub register {	1941	sub register {
1154	my (undef, $regex, $prio) = @_;	1942	my (undef, $regex, $prio) = @_;
1155	my $pkg = caller;	1943	my $pkg = caller;
1156		1944
1157	no strict;
1158	push @{"$pkg\::ISA"}, __PACKAGE__;	1945	push @{"$pkg\::ISA"}, __PACKAGE__;
1159		1946
1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1947	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1161	}	1948	}
1162		1949
1163	# also paths starting with '/'	1950	# also paths starting with '/'
1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1951	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1165		1952
1166	sub thawer_merge {	1953	sub thawer_merge {
1167	my ($self, $merge) = @_;	1954	my ($self, $merge) = @_;
1168		1955
1169	# we have to keep some variables in memory intact	1956	# we have to keep some variables in memory intact
1170	local $self->{path};	1957	local $self->{path};
1171	local $self->{load_path};	1958	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1959
1175	$self->SUPER::thawer_merge ($merge);	1960	$self->SUPER::thawer_merge ($merge);
1176	}	1961	}
1177		1962
1178	sub normalise {	1963	sub normalise {
1179	my ($path, $base) = @_;	1964	my ($path, $base) = @_;
		1965
		1966	$path = "$path"; # make sure it's a string
		1967
		1968	$path =~ s/\.map$//;
1180		1969
1181	# map plan:	1970	# map plan:
1182	#	1971	#
1183	# /! non-realised random map exit (special hack!)	1972	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1973	# {... are special paths that are not being touched
…		…
1197	$base =~ s{[^/]+/?$}{};	1986	$base =~ s{[^/]+/?$}{};
1198	$path = "$base/$path";	1987	$path = "$base/$path";
1199	}	1988	}
1200		1989
1201	for ($path) {	1990	for ($path) {
1202	redo if s{//}{/};
1203	redo if s{/\.?/}{/};	1991	redo if s{/\.?/}{/};
1204	redo if s{/[^/]+/\.\./}{/};	1992	redo if s{/[^/]+/\.\./}{/};
1205	}	1993	}
1206		1994
1207	$path	1995	$path
…		…
1221	$self->init; # pass $1 etc.	2009	$self->init; # pass $1 etc.
1222	return $self;	2010	return $self;
1223	}	2011	}
1224	}	2012	}
1225		2013
1226	Carp::carp "unable to resolve path '$path'.";	2014	Carp::cluck "unable to resolve path '$path' (base '$base')";
1227	()	2015	()
1228	}	2016	}
1229		2017
		2018	# may re-bless or do other evil things
1230	sub init {	2019	sub init {
1231	my ($self) = @_;	2020	my ($self) = @_;
1232		2021
1233	$self	2022	$self
1234	}	2023	}
…		…
1246		2035
1247	# the original (read-only) location	2036	# the original (read-only) location
1248	sub load_path {	2037	sub load_path {
1249	my ($self) = @_;	2038	my ($self) = @_;
1250		2039
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2040	"$MAPDIR/$self->{path}.map"
1252	}	2041	}
1253		2042
1254	# the temporary/swap location	2043	# the temporary/swap location
1255	sub save_path {	2044	sub save_path {
1256	my ($self) = @_;	2045	my ($self) = @_;
1257		2046
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2047	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2048	"$TMPDIR/$path.map"
1260	}	2049	}
1261		2050
1262	# the unique path, undef == no special unique path	2051	# the unique path, undef == no special unique path
1263	sub uniq_path {	2052	sub uniq_path {
1264	my ($self) = @_;	2053	my ($self) = @_;
1265		2054
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2055	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2056	"$UNIQUEDIR/$path"
1268	}	2057	}
1269		2058
1270	# and all this just because we cannot iterate over	2059	sub decay_objects {
1271	# all maps in C++...
1272	sub change_all_map_light {
1273	my ($change) = @_;	2060	my ($self) = @_;
1274		2061
1275	$_->change_map_light ($change)	2062	return if $self->{deny_reset};
1276	for grep $_->outdoor, values %cf::MAP;	2063
		2064	$self->do_decay_objects;
1277	}	2065	}
1278		2066
1279	sub unlink_save {	2067	sub unlink_save {
1280	my ($self) = @_;	2068	my ($self) = @_;
1281		2069
…		…
1286		2074
1287	sub load_header_from($) {	2075	sub load_header_from($) {
1288	my ($self, $path) = @_;	2076	my ($self, $path) = @_;
1289		2077
1290	utf8::encode $path;	2078	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	2079	my $f = new_from_file cf::object::thawer $path
1292	or return;	2080	or return;
1293		2081
1294	$self->_load_header ($path)	2082	$self->_load_header ($f)
1295	or return;	2083	or return;
1296		2084
		2085	local $MAP_LOADING{$self->{path}} = $self;
		2086	$f->resolve_delayed_derefs;
		2087
1297	$self->{load_path} = $path;	2088	$self->{load_path} = $path;
1298		2089
1299	1	2090	1
1300	}	2091	}
1301		2092
		2093	# used to laod the header of an original map
1302	sub load_header_orig {	2094	sub load_header_orig {
1303	my ($self) = @_;	2095	my ($self) = @_;
1304		2096
1305	$self->load_header_from ($self->load_path)	2097	$self->load_header_from ($self->load_path)
1306	}	2098	}
1307		2099
		2100	# used to laod the header of an instantiated map
1308	sub load_header_temp {	2101	sub load_header_temp {
1309	my ($self) = @_;	2102	my ($self) = @_;
1310		2103
1311	$self->load_header_from ($self->save_path)	2104	$self->load_header_from ($self->save_path)
1312	}	2105	}
1313		2106
		2107	# called after loading the header from an instantiated map
1314	sub prepare_temp {	2108	sub prepare_temp {
1315	my ($self) = @_;	2109	my ($self) = @_;
1316		2110
1317	$self->last_access ((delete $self->{last_access})	2111	$self->last_access ((delete $self->{last_access})
1318	|| $cf::RUNTIME); #d#	2112	|| $cf::RUNTIME); #d#
1319	# safety	2113	# safety
1320	$self->{instantiate_time} = $cf::RUNTIME	2114	$self->{instantiate_time} = $cf::RUNTIME
1321	if $self->{instantiate_time} > $cf::RUNTIME;	2115	if $self->{instantiate_time} > $cf::RUNTIME;
1322	}	2116	}
1323		2117
		2118	# called after loading the header from an original map
1324	sub prepare_orig {	2119	sub prepare_orig {
1325	my ($self) = @_;	2120	my ($self) = @_;
1326		2121
1327	$self->{load_original} = 1;	2122	$self->{load_original} = 1;
1328	$self->{instantiate_time} = $cf::RUNTIME;	2123	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1339	$self->load_header_orig	2134	$self->load_header_orig
1340	or return;	2135	or return;
1341	$self->prepare_orig;	2136	$self->prepare_orig;
1342	}	2137	}
1343		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 $self->default_region;
		2144
1344	1	2145	1
1345	}	2146	}
1346		2147
1347	sub find;	2148	sub find;
1348	sub find {	2149	sub find {
1349	my ($path, $origin) = @_;	2150	my ($path, $origin) = @_;
1350		2151
		2152	cf::cede_to_tick;
		2153
1351	$path = normalise $path, $origin && $origin->path;	2154	$path = normalise $path, $origin;
1352		2155
		2156	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1353	cf::lock_wait "map_find:$path";	2157	my $guard2 = cf::lock_acquire "map_find:$path";
1354		2158
1355	$cf::MAP{$path} || do {	2159	$cf::MAP{$path} || do {
1356	my $guard = cf::lock_acquire "map_find:$path";
1357	my $map = new_from_path cf::map $path	2160	my $map = new_from_path cf::map $path
1358	or return;	2161	or return;
1359		2162
1360	$map->{last_save} = $cf::RUNTIME;	2163	$map->{last_save} = $cf::RUNTIME;
1361		2164
1362	$map->load_header	2165	$map->load_header
1363	or return;	2166	or return;
1364		2167
1365	if ($map->should_reset) {	2168	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	2169	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	2170	#$cf::WAIT_FOR_TICK->wait;
		2171	undef $guard2;
		2172	undef $guard1;
1368	$map->reset;	2173	$map->reset;
1369	undef $guard;
1370	$map = find $path	2174	return find $path;
1371	or return;
1372	}	2175	}
1373		2176
1374	$cf::MAP{$path} = $map	2177	$cf::MAP{$path} = $map
1375	}	2178	}
1376	}	2179	}
1377		2180
1378	sub pre_load { }	2181	sub pre_load { }
1379	sub post_load { }	2182	#sub post_load { } # XS
1380		2183
1381	sub load {	2184	sub load {
1382	my ($self) = @_;	2185	my ($self) = @_;
1383		2186
		2187	local $self->{deny_reset} = 1; # loading can take a long time
		2188
1384	my $path = $self->{path};	2189	my $path = $self->{path};
		2190
		2191	{
1385	my $guard = cf::lock_acquire "map_load:$path";	2192	my $guard = cf::lock_acquire "map_data:$path";
1386		2193
1387	return if $self->in_memory != cf::MAP_SWAPPED;	2194	return unless $self->valid;
		2195	return unless $self->state == cf::MAP_SWAPPED;
1388		2196
1389	$self->in_memory (cf::MAP_LOADING);
1390
1391	$self->alloc;	2197	$self->alloc;
1392		2198
1393	$self->pre_load;	2199	$self->pre_load;
		2200	cf::cede_to_tick;
1394		2201
1395	$self->_load_objects ($self->{load_path}, 1)	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)
1396	or return;	2206	or return;
1397		2207
1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2208	$self->post_load_original
1399	if delete $self->{load_original};	2209	if delete $self->{load_original};
1400		2210
1401	if (my $uniq = $self->uniq_path) {	2211	if (my $uniq = $self->uniq_path) {
1402	utf8::encode $uniq;	2212	utf8::encode $uniq;
1403	if (aio_open $uniq, O_RDONLY, 0) {	2213	unless (aio_stat $uniq) {
		2214	if (my $f = new_from_file cf::object::thawer $uniq) {
1404	$self->clear_unique_items;	2215	$self->clear_unique_items;
1405	$self->_load_objects ($uniq, 0);	2216	$self->_load_objects ($f);
		2217	$f->resolve_delayed_derefs;
		2218	}
		2219	}
1406	}	2220	}
1407	}
1408		2221
1409	Coro::cede;	2222	$f->resolve_delayed_derefs;
		2223	} else {
		2224	$self->post_load_original
		2225	if delete $self->{load_original};
		2226	}
1410		2227
		2228	$self->state (cf::MAP_INACTIVE);
		2229
		2230	cf::cede_to_tick;
1411	# now do the right thing for maps	2231	# now do the right thing for maps
1412	$self->link_multipart_objects;	2232	$self->link_multipart_objects;
1413
1414	unless ($self->{deny_activate}) {
1415	$self->decay_objects;
1416	$self->fix_auto_apply;
1417	$self->update_buttons;
1418	Coro::cede;
1419	$self->set_darkness_map;
1420	$self->difficulty ($self->estimate_difficulty)	2233	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	2234	unless $self->difficulty;
1422	Coro::cede;	2235	cf::cede_to_tick;
1423	$self->activate;	2236
		2237	unless ($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);
1424	}	2247	}
1425		2248
1426	$self->post_load;	2249	$self->post_load;
1427		2250
1428	$self->in_memory (cf::MAP_IN_MEMORY);	2251	1
1429	}	2252	}
1430		2253
		2254	# customize the map for a given player, i.e.
		2255	# return the _real_ map. used by e.g. per-player
		2256	# maps to change the path to ~playername/mappath
1431	sub customise_for {	2257	sub customise_for {
1432	my ($self, $ob) = @_;	2258	my ($self, $ob) = @_;
1433		2259
1434	return find "~" . $ob->name . "/" . $self->{path}	2260	return find "~" . $ob->name . "/" . $self->{path}
1435	if $self->per_player;	2261	if $self->per_player;
1436		2262
		2263	# return find "?party/" . $ob->name . "/" . $self->{path}
		2264	# if $self->per_party;
		2265
1437	$self	2266	$self
1438	}
1439
1440	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {
1442	my ($map) = @_;
1443
1444	my @diag; # diagonal neighbours
1445
1446	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)
1448	or next;
1449	$neigh = find $neigh, $map
1450	or next;
1451	$neigh->load;
1452
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}
1456
1457	for (@diag) {
1458	my $neigh = find @$_
1459	or next;
1460	$neigh->load;
1461	}
1462	}	2267	}
1463		2268
1464	sub find_sync {	2269	sub find_sync {
1465	my ($path, $origin) = @_;	2270	my ($path, $origin) = @_;
1466		2271
1467	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, $origin
1468	}	2277	}
1469		2278
1470	sub do_load_sync {	2279	sub do_load_sync {
1471	my ($map) = @_;	2280	my ($map) = @_;
1472		2281
1473	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;
1474	}	2287	}
1475		2288
1476	our %MAP_PREFETCH;	2289	our %MAP_PREFETCH;
1477	our $MAP_PREFETCHER = undef;	2290	our $MAP_PREFETCHER = undef;
1478		2291
1479	sub find_async {	2292	sub find_async {
1480	my ($path, $origin) = @_;	2293	my ($path, $origin, $load) = @_;
1481		2294
1482	$path = normalise $path, $origin && $origin->{path};	2295	$path = normalise $path, $origin;
1483		2296
1484	if (my $map = $cf::MAP{$path}) {	2297	if (my $map = $cf::MAP{$path}) {
1485	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2298	return $map if !$load || $map->linkable;
1486	}	2299	}
1487		2300
1488	undef $MAP_PREFETCH{$path};	2301	$MAP_PREFETCH{$path} |= $load;
		2302
1489	$MAP_PREFETCHER ||= cf::async {	2303	$MAP_PREFETCHER ||= cf::async {
		2304	$Coro::current->{desc} = "map prefetcher";
		2305
1490	while (%MAP_PREFETCH) {	2306	while (%MAP_PREFETCH) {
1491	for my $path (keys %MAP_PREFETCH) {	2307	while (my ($k, $v) = each %MAP_PREFETCH) {
1492	my $map = find $path	2308	if (my $map = find $k) {
1493	or next;
1494	$map->load;	2309	$map->load if $v;
		2310	}
1495		2311
1496	delete $MAP_PREFETCH{$path};	2312	delete $MAP_PREFETCH{$k};
1497	}	2313	}
1498	}	2314	}
1499	undef $MAP_PREFETCHER;	2315	undef $MAP_PREFETCHER;
1500	};	2316	};
1501	$MAP_PREFETCHER->prio (6);	2317	$MAP_PREFETCHER->prio (6);
1502		2318
1503	()	2319	()
1504	}	2320	}
1505		2321
		2322	# common code, used by both ->save and ->swapout
1506	sub save {	2323	sub _save {
1507	my ($self) = @_;	2324	my ($self) = @_;
1508
1509	my $lock = cf::lock_acquire "map_data:" . $self->path;
1510		2325
1511	$self->{last_save} = $cf::RUNTIME;	2326	$self->{last_save} = $cf::RUNTIME;
1512		2327
1513	return unless $self->dirty;	2328	return unless $self->dirty;
1514		2329
…		…
1520	return if $self->{deny_save};	2335	return if $self->{deny_save};
1521		2336
1522	local $self->{last_access} = $self->last_access;#d#	2337	local $self->{last_access} = $self->last_access;#d#
1523		2338
1524	cf::async {	2339	cf::async {
		2340	$Coro::current->{desc} = "map player save";
1525	$_->contr->save for $self->players;	2341	$_->contr->save for $self->players;
1526	};	2342	};
		2343
		2344	cf::get_slot 0.02;
1527		2345
1528	if ($uniq) {	2346	if ($uniq) {
1529	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2347	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1530	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2348	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1531	} else {	2349	} else {
1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1533	}	2351	}
1534	}	2352	}
1535		2353
		2354	sub save {
		2355	my ($self) = @_;
		2356
		2357	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2358
		2359	$self->_save;
		2360	}
		2361
1536	sub swap_out {	2362	sub swap_out {
1537	my ($self) = @_;	2363	my ($self) = @_;
1538		2364
1539	# save first because save cedes
1540	$self->save;
1541
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2366
		2367	return if !$self->linkable;
		2368	return if $self->{deny_save};
1544	return if $self->players;	2369	return if $self->players;
1545	return if $self->in_memory != cf::MAP_IN_MEMORY;
1546	return if $self->{deny_save};
1547		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
1548	$self->clear;	2380	$self->clear;
1549	$self->in_memory (cf::MAP_SWAPPED);
1550	}	2381	}
1551		2382
1552	sub reset_at {	2383	sub reset_at {
1553	my ($self) = @_;	2384	my ($self) = @_;
1554		2385
1555	# TODO: safety, remove and allow resettable per-player maps	2386	# TODO: safety, remove and allow resettable per-player maps
1556	return 1e99 if $self->isa ("ext::map_per_player");#d#
1557	return 1e99 if $self->{deny_reset};	2387	return 1e99 if $self->{deny_reset};
1558		2388
1559	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2389	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1560	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2390	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1561		2391
…		…
1572	my ($self) = @_;	2402	my ($self) = @_;
1573		2403
1574	my $lock = cf::lock_acquire "map_data:$self->{path}";	2404	my $lock = cf::lock_acquire "map_data:$self->{path}";
1575		2405
1576	return if $self->players;	2406	return if $self->players;
1577	return if $self->isa ("ext::map_per_player");#d#
1578		2407
1579	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	}
1580		2419
1581	delete $cf::MAP{$self->path};	2420	delete $cf::MAP{$self->path};
1582		2421
1583	$self->in_memory (cf::MAP_SWAPPED);	2422	$self->deactivate;
		2423	$_->clear_links_to ($self) for values %cf::MAP;
1584	$self->clear;	2424	$self->clear;
1585
1586	$_->clear_links_to ($self) for values %cf::MAP;
1587		2425
1588	$self->unlink_save;	2426	$self->unlink_save;
1589	$self->destroy;	2427	$self->destroy;
1590	}	2428	}
1591		2429
1592	my $nuke_counter = "aaaa";	2430	my $nuke_counter = "aaaa";
1593		2431
1594	sub nuke {	2432	sub nuke {
1595	my ($self) = @_;	2433	my ($self) = @_;
1596		2434
		2435	{
		2436	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2437
1597	delete $cf::MAP{$self->path};	2438	delete $cf::MAP{$self->path};
1598		2439
1599	$self->unlink_save;	2440	$self->unlink_save;
1600		2441
1601	bless $self, "cf::map";	2442	bless $self, "cf::map::wrap";
1602	delete $self->{deny_reset};	2443	delete $self->{deny_reset};
1603	$self->{deny_save} = 1;	2444	$self->{deny_save} = 1;
1604	$self->reset_timeout (1);	2445	$self->reset_timeout (1);
1605	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2446	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1606		2447
1607	$cf::MAP{$self->path} = $self;	2448	$cf::MAP{$self->path} = $self;
		2449	}
1608		2450
1609	$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	]
1610	}	2488	}
1611		2489
1612	=item cf::map::unique_maps	2490	=item cf::map::unique_maps
1613		2491
1614	Returns an arrayref of paths of all shared maps that have	2492	Returns an arrayref of paths of all shared maps that have
1615	instantiated unique items. May block.	2493	instantiated unique items. May block.
1616		2494
1617	=cut	2495	=cut
1618		2496
1619	sub unique_maps() {	2497	sub unique_maps() {
1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2498	[
1621	or return;	2499	map {
1622
1623	my @paths;
1624
1625	for (@$files) {
1626	utf8::decode $_;	2500	utf8::decode $_;
1627	next if /\.pst$/;	2501	s/\.map$//; # TODO future compatibility hack
1628	next unless /^$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	}
1629		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) {
1630	s/\.map$//;	2530	s/\.map$// or next;
1631	push @paths, $_;	2531	utf8::decode $_;
1632	}	2532	push @maps, "$dir/$_";
		2533	}
1633		2534
1634	\@paths	2535	push @dirs, map "$dir/$_", @$dirs;
1635	}	2536	}
1636		2537
1637	package cf;	2538	\@maps
		2539	}
1638		2540
1639	=back	2541	=back
1640		2542
1641	=head3 cf::object	2543	=head3 cf::object
1642		2544
…		…
1646		2548
1647	=over 4	2549	=over 4
1648		2550
1649	=item $ob->inv_recursive	2551	=item $ob->inv_recursive
1650		2552
1651	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.
1652		2555
1653	=cut	2556	=cut
1654		2557
1655	sub inv_recursive_;	2558	sub inv_recursive_;
1656	sub inv_recursive_ {	2559	sub inv_recursive_ {
…		…
1659		2562
1660	sub inv_recursive {	2563	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2564	inv_recursive_ inv $_[0]
1662	}	2565	}
1663		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
1664	package cf;	2595	package cf;
1665		2596
1666	=back	2597	=back
1667		2598
1668	=head3 cf::object::player	2599	=head3 cf::object::player
…		…
1674	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>
1675	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
1676	dialogue with the given NPC character.	2607	dialogue with the given NPC character.
1677		2608
1678	=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	};
1679		2624
1680	# rough implementation of a future "reply" method that works	2625	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2626	# with dialog boxes.
1682	#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
1683	sub cf::object::player::reply($$$;$) {	2628	sub cf::object::player::reply($$$;$) {
…		…
1685		2630
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2631	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2632
1688	if ($self->{record_replies}) {	2633	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2634	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2635
1690	} 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 {
1691	$msg = $npc->name . " says: $msg" if $npc;	2644	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2645	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2646	}
1693	}	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 (@_);
1694	}	2658	}
1695		2659
1696	=item $player_object->may ("access")	2660	=item $player_object->may ("access")
1697		2661
1698	Returns wether the given player is authorized to access resource "access"	2662	Returns wether the given player is authorized to access resource "access"
…		…
1711		2675
1712	=item $player_object->enter_link	2676	=item $player_object->enter_link
1713		2677
1714	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}>).
1715		2679
1716	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.
1717	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.
1718		2684
1719	Will never block.	2685	Will never block.
1720		2686
1721	=item $player_object->leave_link ($map, $x, $y)	2687	=item $player_object->leave_link ($map, $x, $y)
1722		2688
…		…
1730	=cut	2696	=cut
1731		2697
1732	sub link_map {	2698	sub link_map {
1733	unless ($LINK_MAP) {	2699	unless ($LINK_MAP) {
1734	$LINK_MAP = cf::map::find "{link}"	2700	$LINK_MAP = cf::map::find "{link}"
1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2701	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1736	$LINK_MAP->load;	2702	$LINK_MAP->load;
1737	}	2703	}
1738		2704
1739	$LINK_MAP	2705	$LINK_MAP
1740	}	2706	}
…		…
1742	sub cf::object::player::enter_link {	2708	sub cf::object::player::enter_link {
1743	my ($self) = @_;	2709	my ($self) = @_;
1744		2710
1745	$self->deactivate_recursive;	2711	$self->deactivate_recursive;
1746		2712
		2713	++$self->{_link_recursion};
		2714
1747	return if UNIVERSAL::isa $self->map, "ext::map_link";	2715	return if UNIVERSAL::isa $self->map, "ext::map_link";
1748		2716
1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1750	if $self->map;	2718	if $self->map && $self->map->{path} ne "{link}";
1751		2719
1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2720	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1753	}	2721	}
1754		2722
1755	sub cf::object::player::leave_link {	2723	sub cf::object::player::leave_link {
1756	my ($self, $map, $x, $y) = @_;	2724	my ($self, $map, $x, $y) = @_;
		2725
		2726	return unless $self->contr->active;
1757		2727
1758	my $link_pos = delete $self->{_link_pos};	2728	my $link_pos = delete $self->{_link_pos};
1759		2729
1760	unless ($map) {	2730	unless ($map) {
1761	# restore original map position	2731	# restore original map position
…		…
1772	($x, $y) = (-1, -1)	2742	($x, $y) = (-1, -1)
1773	unless (defined $x) && (defined $y);	2743	unless (defined $x) && (defined $y);
1774		2744
1775	# use -1 or undef as default coordinates, not 0, 0	2745	# use -1 or undef as default coordinates, not 0, 0
1776	($x, $y) = ($map->enter_x, $map->enter_y)	2746	($x, $y) = ($map->enter_x, $map->enter_y)
1777	if $x <=0 && $y <= 0;	2747	if $x <= 0 && $y <= 0;
1778		2748
1779	$map->load;	2749	$map->load;
1780	$map->load_diag;
1781		2750
1782	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
1783	$self->activate_recursive;	2758	$self->activate_recursive;
1784	$self->enter_map ($map, $x, $y);
1785	}
1786
1787	cf::player->attach (
1788	on_logout => sub {
1789	my ($pl) = @_;
1790
1791	# abort map switching before logout
1792	if ($pl->ob->{_link_pos}) {
1793	cf::sync_job {
1794	$pl->ob->leave_link
1795	};
1796	}
1797	},	2759	}
1798	on_login => sub {
1799	my ($pl) = @_;
1800		2760
1801	# try to abort aborted map switching on player login :)	2761	}
1802	# should happen only on crashes
1803	if ($pl->ob->{_link_pos}) {
1804	$pl->ob->enter_link;
1805	(async {
1806	# we need this sleep as the login has a concurrent enter_exit running
1807	# and this sleep increases chances of the player not ending up in scorn
1808	$pl->ob->reply (undef,
1809	"There was an internal problem at your last logout, "
1810	. "the server will try to bring you to your intended destination in a second.",
1811	cf::NDI_RED);
1812	Coro::Timer::sleep 1;
1813	$pl->ob->leave_link;
1814	})->prio (2);
1815	}
1816	},
1817	);
1818		2762
1819	=item $player_object->goto ($path, $x, $y)	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1820		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
1821	=cut	2774	=cut
		2775
		2776	our $GOTOGEN;
1822		2777
1823	sub cf::object::player::goto {	2778	sub cf::object::player::goto {
1824	my ($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;
1825		2789
1826	$self->enter_link;	2790	$self->enter_link;
1827		2791
1828	(async {	2792	(async {
1829	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) {
1830	$map = $map->customise_for ($self) if $map;	2818	$map = $map->customise_for ($self);
1831		2819	$map = $check->($map, $x, $y, $self) if $check && $map;
1832	# warn "entering ", $map->path, " at ($x, $y)\n"	2820	} else {
1833	# if $map;
1834
1835	$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	}
1836		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};
1837	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
		2835	}
		2836
		2837	$done->($self) if $done;
1838	})->prio (1);	2838	})->prio (1);
1839	}	2839	}
1840		2840
1841	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
1842		2842
…		…
1862	}	2862	}
1863		2863
1864	sub prepare_random_map {	2864	sub prepare_random_map {
1865	my ($exit) = @_;	2865	my ($exit) = @_;
1866		2866
1867	my $guard = cf::lock_acquire "exit_prepare:$exit";
1868
1869	# all this does is basically replace the /! path by	2867	# all this does is basically replace the /! path by
1870	# a new random map path (?random/...) with a seed	2868	# a new random map path (?random/...) with a seed
1871	# that depends on the exit object	2869	# that depends on the exit object
1872		2870
1873	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
1874		2872
1875	if ($exit->map) {	2873	if ($exit->map) {
1876	$rmp->{region} = $exit->map->region_name;	2874	$rmp->{region} = $exit->region->name;
1877	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
1878	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
1879	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
1880	}	2880	}
1881		2881
1882	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
1883		2883
1884	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1885	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2886	my $meta = "$RANDOMDIR/$md5.meta";
1887		2887
1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1889	aio_write $fh, 0, (length $data), $data, 0;	2889	aio_write $fh, 0, (length $data), $data, 0;
1890	undef $fh;	2890	undef $fh;
1891	aio_rename "$meta~", $meta;	2891	aio_rename "$meta~", $meta;
1892		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
1893	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
1894	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
1895	}	2899	}
1896	}	2900	}
1897		2901
1898	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
1899	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
…		…
1901	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
1902		2906
1903	$self->enter_link;	2907	$self->enter_link;
1904		2908
1905	(async {	2909	(async {
1906	$self->deactivate_recursive; # just to be sure	2910	$Coro::current->{desc} = "enter_exit";
		2911
1907	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
1908	prepare_random_map $exit	2926	prepare_random_map $exit
		2927	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2928
1909	if $exit->slaying eq "/!";	2929	$map = $exit->slaying;
1910		2930
1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2931	} elsif ($slaying eq '!up') {
1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2932	$map = $exit->map->tile_path (cf::TILE_UP);
		2933	$x = $exit->x;
		2934	$y = $exit->y;
1913		2935
		2936	} elsif ($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
1914	1;	2948	1
1915	}) {	2949	}) {
1916	$self->message ("Something went wrong deep within the crossfire server. "	2950	$self->message ("Something went wrong deep within the deliantra server. "
1917	. "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. "
1918	. "Please report this to the dungeon master!",	2952	. "Please report this to the dungeon master!",
1919	cf::NDI_UNIQUE | cf::NDI_RED);	2953	cf::NDI_UNIQUE | cf::NDI_RED);
1920		2954
1921	warn "ERROR in enter_exit: $@";	2955	error "ERROR in enter_exit: $@";
1922	$self->leave_link;	2956	$self->leave_link;
1923	}	2957	}
1924	})->prio (1);	2958	})->prio (1);
1925	}	2959	}
1926		2960
…		…
1937		2971
1938	sub cf::client::send_drawinfo {	2972	sub cf::client::send_drawinfo {
1939	my ($self, $text, $flags) = @_;	2973	my ($self, $text, $flags) = @_;
1940		2974
1941	utf8::encode $text;	2975	utf8::encode $text;
1942	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2976	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1943	}	2977	}
1944		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	}
1945		3196
1946	=item $success = $client->query ($flags, "text", \&cb)	3197	=item $success = $client->query ($flags, "text", \&cb)
1947		3198
1948	Queues a query to the client, calling the given callback with	3199	Queues a query to the client, calling the given callback with
1949	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>,
1950	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>.
1951		3202
1952	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
1953	reliable at some point in the future.	3204	become reliable at some point in the future.
1954		3205
1955	=cut	3206	=cut
1956		3207
1957	sub cf::client::query {	3208	sub cf::client::query {
1958	my ($self, $flags, $text, $cb) = @_;	3209	my ($self, $flags, $text, $cb) = @_;
…		…
1966	utf8::encode $text;	3217	utf8::encode $text;
1967	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3218	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1968		3219
1969	$self->send_packet ($self->{query_queue}[0][0])	3220	$self->send_packet ($self->{query_queue}[0][0])
1970	if @{ $self->{query_queue} } == 1;	3221	if @{ $self->{query_queue} } == 1;
		3222
		3223	1
1971	}	3224	}
1972		3225
1973	cf::client->attach (	3226	cf::client->attach (
		3227	on_connect => sub {
		3228	my ($ns) = @_;
		3229
		3230	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3231	},
1974	on_reply => sub {	3232	on_reply => sub {
1975	my ($ns, $msg) = @_;	3233	my ($ns, $msg) = @_;
1976		3234
1977	# this weird shuffling is so that direct followup queries	3235	# this weird shuffling is so that direct followup queries
1978	# get handled first	3236	# get handled first
1979	my $queue = delete $ns->{query_queue}	3237	my $queue = delete $ns->{query_queue}
1980	or return; # be conservative, not sure how that can happen, but we saw a crash here	3238	or return; # be conservative, not sure how that can happen, but we saw a crash here
1981		3239
1982	(shift @$queue)->[1]->($msg);	3240	(shift @$queue)->[1]->($msg);
		3241	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1983		3242
1984	push @{ $ns->{query_queue} }, @$queue;	3243	push @{ $ns->{query_queue} }, @$queue;
1985		3244
1986	if (@{ $ns->{query_queue} } == @$queue) {	3245	if (@{ $ns->{query_queue} } == @$queue) {
1987	if (@$queue) {	3246	if (@$queue) {
…		…
1989	} else {	3248	} else {
1990	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3249	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1991	}	3250	}
1992	}	3251	}
1993	},	3252	},
		3253	on_exticmd => sub {
		3254	my ($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	},
1994	);	3276	);
1995		3277
1996	=item $client->async (\&cb)	3278	=item $client->async (\&cb)
1997		3279
1998	Create a new coroutine, running the specified callback. The coroutine will	3280	Create a new coroutine, running the specified callback. The coroutine will
…		…
2014		3296
2015	$coro	3297	$coro
2016	}	3298	}
2017		3299
2018	cf::client->attach (	3300	cf::client->attach (
2019	on_destroy => sub {	3301	on_client_destroy => sub {
2020	my ($ns) = @_;	3302	my ($ns) = @_;
2021		3303
2022	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3304	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2023	},	3305	},
2024	);	3306	);
…		…
2039	our $safe = new Safe "safe";	3321	our $safe = new Safe "safe";
2040	our $safe_hole = new Safe::Hole;	3322	our $safe_hole = new Safe::Hole;
2041		3323
2042	$SIG{FPE} = 'IGNORE';	3324	$SIG{FPE} = 'IGNORE';
2043		3325
2044	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3326	$safe->permit_only (Opcode::opset qw(
		3327	:base_core :base_mem :base_orig :base_math :base_loop
		3328	grepstart grepwhile mapstart mapwhile
		3329	sort time
		3330	));
2045		3331
2046	# here we export the classes and methods available to script code	3332	# here we export the classes and methods available to script code
2047		3333
2048	=pod	3334	=pod
2049		3335
2050	The following fucntions and emthods are available within a safe environment:	3336	The following functions and methods are available within a safe environment:
2051		3337
2052	cf::object contr pay_amount pay_player map	3338	cf::object
		3339	contr pay_amount pay_player map x y force_find force_add destroy
		3340	insert remove name archname title slaying race decrease split
		3341	value
		3342
2053	cf::object::player player	3343	cf::object::player
2054	cf::player peaceful	3344	player
2055	cf::map trigger	3345
		3346	cf::player
		3347	peaceful
		3348
		3349	cf::map
		3350	trigger
2056		3351
2057	=cut	3352	=cut
2058		3353
2059	for (	3354	for (
2060	["cf::object" => qw(contr pay_amount pay_player map)],	3355	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3356	insert remove inv nrof name archname title slaying race
		3357	decrease split destroy change_exp value msg lore send_msg)],
2061	["cf::object::player" => qw(player)],	3358	["cf::object::player" => qw(player)],
2062	["cf::player" => qw(peaceful)],	3359	["cf::player" => qw(peaceful send_msg)],
2063	["cf::map" => qw(trigger)],	3360	["cf::map" => qw(trigger)],
2064	) {	3361	) {
2065	no strict 'refs';
2066	my ($pkg, @funs) = @$_;	3362	my ($pkg, @funs) = @$_;
2067	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3363	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2068	for @funs;	3364	for @funs;
2069	}	3365	}
2070		3366
…		…
2085		3381
2086	my $qcode = $code;	3382	my $qcode = $code;
2087	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3383	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2088	$qcode =~ s/\n/\\n/g;	3384	$qcode =~ s/\n/\\n/g;
2089		3385
		3386	%vars = (_dummy => 0) unless %vars;
		3387
		3388	my @res;
2090	local $_;	3389	local $_;
2091	local @safe::cf::_safe_eval_args = values %vars;
2092		3390
2093	my $eval =	3391	my $eval =
2094	"do {\n"	3392	"do {\n"
2095	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3393	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2096	. "#line 0 \"{$qcode}\"\n"	3394	. "#line 0 \"{$qcode}\"\n"
2097	. $code	3395	. $code
2098	. "\n}"	3396	. "\n}"
2099	;	3397	;
2100		3398
		3399	if ($CFG{safe_eval}) {
2101	sub_generation_inc;	3400	sub_generation_inc;
		3401	local @safe::cf::_safe_eval_args = values %vars;
2102	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3402	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2103	sub_generation_inc;	3403	sub_generation_inc;
		3404	} else {
		3405	local @cf::_safe_eval_args = values %vars;
		3406	@res = wantarray ? eval eval : scalar eval $eval;
		3407	}
2104		3408
2105	if ($@) {	3409	if ($@) {
2106	warn "$@";	3410	warn "$@",
2107	warn "while executing safe code '$code'\n";	3411	"while executing safe code '$code'\n",
2108	warn "with arguments " . (join " ", %vars) . "\n";	3412	"with arguments " . (join " ", %vars) . "\n";
2109	}	3413	}
2110		3414
2111	wantarray ? @res : $res[0]	3415	wantarray ? @res : $res[0]
2112	}	3416	}
2113		3417
…		…
2127	=cut	3431	=cut
2128		3432
2129	sub register_script_function {	3433	sub register_script_function {
2130	my ($fun, $cb) = @_;	3434	my ($fun, $cb) = @_;
2131		3435
2132	no strict 'refs';	3436	$fun = "safe::$fun" if $CFG{safe_eval};
2133	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3437	*$fun = $safe_hole->wrap ($cb);
2134	}	3438	}
2135		3439
2136	=back	3440	=back
2137		3441
2138	=cut	3442	=cut
2139		3443
2140	#############################################################################	3444	#############################################################################
		3445	# the server's init and main functions
2141		3446
2142	=head2 EXTENSION DATABASE SUPPORT	3447	sub load_facedata($) {
		3448	my ($path) = @_;
2143		3449
2144	Crossfire maintains a very simple database for extension use. It can	3450	# HACK to clear player env face cache, we need some signal framework
2145	currently store anything that can be serialised using Storable, which	3451	# for this (global event?)
2146	excludes objects.	3452	%ext::player_env::MUSIC_FACE_CACHE = ();
2147		3453
2148	The parameter C<$family> should best start with the name of the extension	3454	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2149	using it, it should be unique.
2150		3455
2151	=over 4	3456	trace "loading facedata from $path\n";
2152		3457
2153	=item $hashref = cf::db_get $family	3458	my $facedata = decode_storable load_file $path;
2154		3459
2155	Return a hashref for use by the extension C<$family>, which can be	3460	$facedata->{version} == 2
2156	modified. After modifications, you have to call C<cf::db_dirty> or	3461	or cf::cleanup "$path: version mismatch, cannot proceed.";
2157	C<cf::db_sync>.
2158		3462
2159	=item $value = cf::db_get $family => $key	3463	# patch in the exptable
2160		3464	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2161	Returns a single value from the database	3465	$facedata->{resource}{"res/exp_table"} = {
2162		3466	type => FT_RSRC,
2163	=item cf::db_put $family => $hashref	3467	data => $exp_table,
2164		3468	hash => (Digest::MD5::md5 $exp_table),
2165	Stores the given family hashref into the database. Updates are delayed, if
2166	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2167
2168	=item cf::db_put $family => $key => $value
2169
2170	Stores the given C<$value> in the family hash. Updates are delayed, if you
2171	want the data to be synced to disk immediately, use C<cf::db_sync>.
2172
2173	=item cf::db_dirty
2174
2175	Marks the database as dirty, to be updated at a later time.
2176
2177	=item cf::db_sync
2178
2179	Immediately write the database to disk I<if it is dirty>.
2180
2181	=cut
2182
2183	our $DB;
2184
2185	{
2186	my $path = cf::localdir . "/database.pst";
2187
2188	sub db_load() {
2189	$DB = stat $path ? Storable::retrieve $path : { };
2190	}	3469	};
		3470	cf::cede_to_tick;
2191		3471
2192	my $pid;
2193
2194	sub db_save() {
2195	waitpid $pid, 0 if $pid;
2196	if (0 == ($pid = fork)) {
2197	$DB->{_meta}{version} = 1;
2198	Storable::nstore $DB, "$path~";
2199	rename "$path~", $path;
2200	cf::_exit 0 if defined $pid;
2201	}
2202	}	3472	{
		3473	my $faces = $facedata->{faceinfo};
2203		3474
2204	my $dirty;	3475	while (my ($face, $info) = each %$faces) {
		3476	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205		3477
2206	sub db_sync() {	3478	cf::face::set_visibility $idx, $info->{visibility};
2207	db_save if $dirty;	3479	cf::face::set_magicmap $idx, $info->{magicmap};
2208	undef $dirty;	3480	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2209	}	3481	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3482	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2210		3483
2211	my $idle = Event->idle (	3484	cf::cede_to_tick;
2212	reentrant => 0,
2213	min => 10,
2214	max => 20,
2215	repeat => 0,
2216	data => WF_AUTOCANCEL,
2217	cb => \&db_sync,
2218	);
2219
2220	sub db_dirty() {
2221	$dirty = 1;
2222	$idle->start;
2223	}
2224
2225	sub db_get($;$) {
2226	@_ >= 2
2227	? $DB->{$_[0]}{$_[1]}
2228	: ($DB->{$_[0]} ||= { })
2229	}
2230
2231	sub db_put($$;$) {
2232	if (@_ >= 3) {
2233	$DB->{$_[0]}{$_[1]} = $_[2];
2234	} else {
2235	$DB->{$_[0]} = $_[1];
2236	}
2237	db_dirty;
2238	}
2239
2240	cf::global->attach (
2241	prio => 10000,
2242	on_cleanup => sub {
2243	db_sync;
2244	},	3485	}
2245	);
2246	}
2247		3486
2248	#############################################################################	3487	while (my ($face, $info) = each %$faces) {
2249	# the server's main()	3488	next unless $info->{smooth};
2250		3489
2251	sub cfg_load {	3490	my $idx = cf::face::find $face
2252	open my $fh, "<:utf8", cf::confdir . "/config"	3491	or next;
2253	or return;
2254		3492
2255	local $/;	3493	if (my $smooth = cf::face::find $info->{smooth}) {
2256	*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	}
2257		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 $info->{type}) {
		3520	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3521
		3522	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3523	cf::face::set_type $idx, $info->{type};
		3524	} else {
		3525	$RESOURCE{$name} = $info; # unused
		3526	}
		3527
		3528	cf::cede_to_tick;
		3529	}
		3530	}
		3531
		3532	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3533
		3534	1
		3535	}
		3536
		3537	register_exticmd fx_want => sub {
		3538	my ($ns, $want) = @_;
		3539
		3540	while (my ($k, $v) = each %$want) {
		3541	$ns->fx_want ($k, $v);
		3542	}
		3543	};
		3544
		3545	sub load_resource_file($) {
		3546	my $guard = lock_acquire "load_resource_file";
		3547
		3548	my $status = load_resource_file_ $_[0];
		3549	get_slot 0.1, 100;
		3550	cf::arch::commit_load;
		3551
		3552	$status
		3553	}
		3554
		3555	sub reload_regions {
		3556	# HACK to clear player env face cache, we need some signal framework
		3557	# for this (global event?)
		3558	%ext::player_env::MUSIC_FACE_CACHE = ();
		3559
		3560	load_resource_file "$MAPDIR/regions"
		3561	or die "unable to load regions file\n";
		3562
		3563	for (cf::region::list) {
		3564	$_->{match} = qr/$_->{match}/
		3565	if exists $_->{match};
		3566	}
		3567	}
		3568
		3569	sub reload_facedata {
		3570	load_facedata "$DATADIR/facedata"
		3571	or die "unable to load facedata\n";
		3572	}
		3573
		3574	sub reload_archetypes {
		3575	load_resource_file "$DATADIR/archetypes"
		3576	or die "unable to load archetypes\n";
		3577	}
		3578
		3579	sub reload_treasures {
		3580	load_resource_file "$DATADIR/treasures"
		3581	or die "unable to load treasurelists\n";
		3582	}
		3583
		3584	sub reload_sound {
		3585	trace "loading sound config from $DATADIR/sound\n";
		3586
		3587	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3588
		3589	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3590	my $sound = $soundconf->{compat}[$_]
		3591	or next;
		3592
		3593	my $face = cf::face::find "sound/$sound->[1]";
		3594	cf::sound::set $sound->[0] => $face;
		3595	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3596	}
		3597
		3598	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3599	my $face = cf::face::find "sound/$v";
		3600	cf::sound::set $k => $face;
		3601	}
		3602	}
		3603
		3604	sub reload_resources {
		3605	trace "reloading resource files...\n";
		3606
		3607	reload_exp_table;
		3608	reload_materials;
		3609	reload_facedata;
		3610	reload_sound;
		3611	reload_archetypes;
		3612	reload_regions;
		3613	reload_treasures;
		3614
		3615	trace "finished reloading resource files\n";
		3616	}
		3617
		3618	sub reload_config {
		3619	trace "reloading config file...\n";
		3620
		3621	my $config = load_file "$CONFDIR/config";
		3622	utf8::decode $config;
		3623	*CFG = decode_yaml $config;
		3624
2258	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3625	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2259		3626
2260	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3627	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2261	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3628	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2262		3629
2263	if (exists $CFG{mlockall}) {	3630	if (exists $CFG{mlockall}) {
…		…
2267	};	3634	};
2268	warn $@ if $@;	3635	warn $@ if $@;
2269	}	3636	}
2270	}	3637	}
2271		3638
		3639	sub pidfile() {
		3640	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3641	or die "$PIDFILE: $!";
		3642	flock $fh, &Fcntl::LOCK_EX
		3643	or die "$PIDFILE: flock: $!";
		3644	$fh
		3645	}
		3646
		3647	# make sure only one server instance is running at any one time
		3648	sub atomic {
		3649	my $fh = pidfile;
		3650
		3651	my $pid = <$fh>;
		3652	kill 9, $pid if $pid > 0;
		3653
		3654	seek $fh, 0, 0;
		3655	print $fh $$;
		3656	}
		3657
		3658	sub main_loop {
		3659	trace "EV::loop starting\n";
		3660	if (1) {
		3661	EV::loop;
		3662	}
		3663	trace "EV::loop returned\n";
		3664	goto &main_loop unless $REALLY_UNLOOP;
		3665	}
		3666
2272	sub main {	3667	sub main {
		3668	cf::init_globals; # initialise logging
		3669
		3670	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3671	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3672	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3673	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3674
		3675	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3676
2273	# we must not ever block the main coroutine	3677	# we must not ever block the main coroutine
2274	local $Coro::idle = sub {	3678	local $Coro::idle = sub {
2275	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3679	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2276	(async {	3680	(async {
2277	Event::one_event;	3681	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3682	EV::loop EV::LOOP_ONESHOT;
2278	})->prio (Coro::PRIO_MAX);	3683	})->prio (Coro::PRIO_MAX);
2279	};	3684	};
2280		3685
2281	cfg_load;	3686	evthread_start IO::AIO::poll_fileno;
2282	db_load;	3687
		3688	cf::sync_job {
		3689	cf::incloader::init ();
		3690
		3691	cf::init_anim;
		3692	cf::init_attackmess;
		3693	cf::init_dynamic;
		3694
		3695	cf::load_settings;
		3696
		3697	reload_resources;
		3698	reload_config;
		3699	db_init;
		3700
		3701	cf::init_uuid;
		3702	cf::init_signals;
		3703	cf::init_skills;
		3704
		3705	cf::init_beforeplay;
		3706
		3707	atomic;
		3708
2283	load_extensions;	3709	load_extensions;
2284		3710
2285	$TICK_WATCHER->start;	3711	utime time, time, $RUNTIMEFILE;
2286	Event::loop;	3712
		3713	# no (long-running) fork's whatsoever before this point(!)
		3714	use POSIX ();
		3715	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3716
		3717	cf::_post_init 0;
		3718	};
		3719
		3720	cf::object::thawer::errors_are_fatal 0;
		3721	info "parse errors in files are no longer fatal from this point on.\n";
		3722
		3723	AE::postpone {
		3724	undef &main; # free gobs of memory :)
		3725	};
		3726
		3727	goto &main_loop;
2287	}	3728	}
2288		3729
2289	#############################################################################	3730	#############################################################################
2290	# initialisation and cleanup	3731	# initialisation and cleanup
2291		3732
2292	# install some emergency cleanup handlers	3733	# install some emergency cleanup handlers
2293	BEGIN {	3734	BEGIN {
		3735	our %SIGWATCHER = ();
2294	for my $signal (qw(INT HUP TERM)) {	3736	for my $signal (qw(INT HUP TERM)) {
2295	Event->signal (	3737	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2296	reentrant => 0,
2297	data => WF_AUTOCANCEL,
2298	signal => $signal,
2299	prio => 0,
2300	cb => sub {
2301	cf::cleanup "SIG$signal";	3738	cf::cleanup "SIG$signal";
2302	},
2303	);	3739	};
		3740	}
		3741	}
		3742
		3743	sub write_runtime_sync {
		3744	my $t0 = AE::time;
		3745
		3746	# first touch the runtime file to show we are still running:
		3747	# the fsync below can take a very very long time.
		3748
		3749	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3750
		3751	my $guard = cf::lock_acquire "write_runtime";
		3752
		3753	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3754	or return;
		3755
		3756	my $value = $cf::RUNTIME + 90 + 10;
		3757	# 10 is the runtime save interval, for a monotonic clock
		3758	# 60 allows for the watchdog to kill the server.
		3759
		3760	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3761	and return;
		3762
		3763	# always fsync - this file is important
		3764	aio_fsync $fh
		3765	and return;
		3766
		3767	# touch it again to show we are up-to-date
		3768	aio_utime $fh, undef, undef;
		3769
		3770	close $fh
		3771	or return;
		3772
		3773	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3774	and return;
		3775
		3776	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3777
2304	}	3778	1
		3779	}
		3780
		3781	our $uuid_lock;
		3782	our $uuid_skip;
		3783
		3784	sub write_uuid_sync($) {
		3785	$uuid_skip ||= $_[0];
		3786
		3787	return if $uuid_lock;
		3788	local $uuid_lock = 1;
		3789
		3790	my $uuid = "$LOCALDIR/uuid";
		3791
		3792	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3793	or return;
		3794
		3795	my $value = uuid_seq uuid_cur;
		3796
		3797	unless ($value) {
		3798	info "cowardly refusing to write zero uuid value!\n";
		3799	return;
		3800	}
		3801
		3802	my $value = uuid_str $value + $uuid_skip;
		3803	$uuid_skip = 0;
		3804
		3805	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3806	and return;
		3807
		3808	# always fsync - this file is important
		3809	aio_fsync $fh
		3810	and return;
		3811
		3812	close $fh
		3813	or return;
		3814
		3815	aio_rename "$uuid~", $uuid
		3816	and return;
		3817
		3818	trace "uuid file written ($value).\n";
		3819
		3820	1
		3821
		3822	}
		3823
		3824	sub write_uuid($$) {
		3825	my ($skip, $sync) = @_;
		3826
		3827	$sync ? write_uuid_sync $skip
		3828	: async { write_uuid_sync $skip };
2305	}	3829	}
2306		3830
2307	sub emergency_save() {	3831	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	3832	my $freeze_guard = cf::freeze_mainloop;
2309		3833
2310	warn "enter emergency perl save\n";	3834	info "emergency_perl_save: enter\n";
		3835
		3836	# this is a trade-off: we want to be very quick here, so
		3837	# save all maps without fsync, and later call a global sync
		3838	# (which in turn might be very very slow)
		3839	local $USE_FSYNC = 0;
2311		3840
2312	cf::sync_job {	3841	cf::sync_job {
		3842	cf::write_runtime_sync; # external watchdog should not bark
		3843
2313	# use a peculiar iteration method to avoid tripping on perl	3844	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	3845	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/destroyed asynchronously.	3846	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	3847	info "emergency_perl_save: begin player save\n";
2317	for my $login (keys %cf::PLAYER) {	3848	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	3849	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	3850	$pl->valid or next;
		3851	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2320	$pl->save;	3852	$pl->save;
2321	}	3853	}
2322	warn "end emergency player save\n";	3854	info "emergency_perl_save: end player save\n";
2323		3855
2324	warn "begin emergency map save\n";	3856	cf::write_runtime_sync; # external watchdog should not bark
		3857
		3858	info "emergency_perl_save: begin map save\n";
2325	for my $path (keys %cf::MAP) {	3859	for my $path (keys %cf::MAP) {
2326	my $map = $cf::MAP{$path} or next;	3860	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	3861	$map->valid or next;
2328	$map->save;	3862	$map->save;
2329	}	3863	}
2330	warn "end emergency map save\n";	3864	info "emergency_perl_save: end map save\n";
		3865
		3866	cf::write_runtime_sync; # external watchdog should not bark
		3867
		3868	info "emergency_perl_save: begin database checkpoint\n";
		3869	BDB::db_env_txn_checkpoint $DB_ENV;
		3870	info "emergency_perl_save: end database checkpoint\n";
		3871
		3872	info "emergency_perl_save: begin write uuid\n";
		3873	write_uuid_sync 1;
		3874	info "emergency_perl_save: end write uuid\n";
		3875
		3876	cf::write_runtime_sync; # external watchdog should not bark
		3877
		3878	trace "emergency_perl_save: syncing database to disk";
		3879	BDB::db_env_txn_checkpoint $DB_ENV;
		3880
		3881	info "emergency_perl_save: starting sync\n";
		3882	IO::AIO::aio_sync sub {
		3883	info "emergency_perl_save: finished sync\n";
		3884	};
		3885
		3886	cf::write_runtime_sync; # external watchdog should not bark
		3887
		3888	trace "emergency_perl_save: flushing outstanding aio requests";
		3889	while (IO::AIO::nreqs || BDB::nreqs) {
		3890	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3891	}
		3892
		3893	cf::write_runtime_sync; # external watchdog should not bark
2331	};	3894	};
2332		3895
2333	warn "leave emergency perl save\n";	3896	info "emergency_perl_save: leave\n";
2334	}	3897	}
2335		3898
		3899	sub post_cleanup {
		3900	my ($make_core) = @_;
		3901
		3902	IO::AIO::flush;
		3903
		3904	error Carp::longmess "post_cleanup backtrace"
		3905	if $make_core;
		3906
		3907	my $fh = pidfile;
		3908	unlink $PIDFILE if <$fh> == $$;
		3909	}
		3910
		3911	# a safer delete_package, copied from Symbol
		3912	sub clear_package($) {
		3913	my $pkg = shift;
		3914
		3915	# expand to full symbol table name if needed
		3916	unless ($pkg =~ /^main::.*::$/) {
		3917	$pkg = "main$pkg" if $pkg =~ /^::/;
		3918	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3919	$pkg .= '::' unless $pkg =~ /::$/;
		3920	}
		3921
		3922	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3923	my $stem_symtab = *{$stem}{HASH};
		3924
		3925	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3926	or return;
		3927
		3928	# clear all symbols
		3929	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3930	for my $name (keys %$leaf_symtab) {
		3931	_gv_clear *{"$pkg$name"};
		3932	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3933	}
		3934	}
		3935
2336	sub reload() {	3936	sub do_reload_perl() {
2337	# can/must only be called in main	3937	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	3938	unless (in_main) {
2339	warn "can only reload from main coroutine";	3939	error "can only reload from main coroutine";
2340	return;	3940	return;
2341	}	3941	}
2342		3942
2343	warn "reloading...";	3943	return if $RELOAD++;
2344		3944
2345	warn "cancelling server ticker";	3945	my $t1 = AE::time;
2346	$TICK_WATCHER->cancel;
2347		3946
		3947	while ($RELOAD) {
		3948	cf::get_slot 0.1, -1, "reload_perl";
		3949	info "perl_reload: reloading...";
		3950
		3951	trace "perl_reload: entering sync_job";
		3952
		3953	cf::sync_job {
2348	cf::emergency_save;	3954	#cf::emergency_save;
2349		3955
2350	eval {
2351	# if anything goes wrong in here, we should simply crash as we already saved
2352
2353	warn "syncing database to disk";
2354	cf::db_sync;
2355
2356	warn "cancelling all WF_AUTOCANCEL watchers";
2357	for (Event::all_watchers) {
2358	$_->cancel if $_->data & WF_AUTOCANCEL;
2359	}
2360
2361	warn "flushing outstanding aio requests";
2362	for (;;) {
2363	IO::AIO::flush;
2364	Coro::cede;
2365	last unless IO::AIO::nreqs;
2366	warn "iterate...";
2367	}
2368
2369	warn "cancelling all extension coros";	3956	trace "perl_reload: cancelling all extension coros";
2370	$_->cancel for values %EXT_CORO;	3957	$_->cancel for values %EXT_CORO;
2371	%EXT_CORO = ();	3958	%EXT_CORO = ();
2372		3959
2373	warn "removing commands";	3960	trace "perl_reload: removing commands";
2374	%COMMAND = ();	3961	%COMMAND = ();
2375		3962
2376	warn "removing ext commands";	3963	trace "perl_reload: removing ext/exti commands";
2377	%EXTCMD = ();	3964	%EXTCMD = ();
		3965	%EXTICMD = ();
2378		3966
2379	warn "unloading/nuking all extensions";	3967	trace "perl_reload: unloading/nuking all extensions";
2380	for my $pkg (@EXTS) {	3968	for my $pkg (@EXTS) {
2381	warn "... unloading $pkg";	3969	trace "... unloading $pkg";
2382		3970
2383	if (my $cb = $pkg->can ("unload")) {	3971	if (my $cb = $pkg->can ("unload")) {
2384	eval {	3972	eval {
2385	$cb->($pkg);	3973	$cb->($pkg);
2386	1	3974	1
2387	} or warn "$pkg unloaded, but with errors: $@";	3975	} or error "$pkg unloaded, but with errors: $@";
		3976	}
		3977
		3978	trace "... clearing $pkg";
		3979	clear_package $pkg;
2388	}	3980	}
2389		3981
2390	warn "... nuking $pkg";
2391	Symbol::delete_package $pkg;
2392	}
2393
2394	warn "unloading all perl modules loaded from $LIBDIR";	3982	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2395	while (my ($k, $v) = each %INC) {	3983	while (my ($k, $v) = each %INC) {
2396	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3984	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2397		3985
2398	warn "... unloading $k";	3986	trace "... unloading $k";
2399	delete $INC{$k};	3987	delete $INC{$k};
2400		3988
2401	$k =~ s/\.pm$//;	3989	$k =~ s/\.pm$//;
2402	$k =~ s/\//::/g;	3990	$k =~ s/\//::/g;
2403		3991
2404	if (my $cb = $k->can ("unload_module")) {	3992	if (my $cb = $k->can ("unload_module")) {
2405	$cb->();	3993	$cb->();
		3994	}
		3995
		3996	clear_package $k;
2406	}	3997	}
2407		3998
2408	Symbol::delete_package $k;
2409	}
2410
2411	warn "getting rid of safe::, as good as possible";	3999	trace "perl_reload: getting rid of safe::, as good as possible";
2412	Symbol::delete_package "safe::$_"	4000	clear_package "safe::$_"
2413	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4001	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2414		4002
2415	warn "unloading cf.pm \"a bit\"";	4003	trace "perl_reload: unloading cf.pm \"a bit\"";
2416	delete $INC{"cf.pm"};	4004	delete $INC{"cf.pm"};
		4005	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2417		4006
2418	# don't, removes xs symbols, too,	4007	# don't, removes xs symbols, too,
2419	# and global variables created in xs	4008	# and global variables created in xs
2420	#Symbol::delete_package __PACKAGE__;	4009	#clear_package __PACKAGE__;
2421		4010
2422	warn "unload completed, starting to reload now";	4011	info "perl_reload: unload completed, starting to reload now";
2423		4012
2424	warn "reloading cf.pm";	4013	trace "perl_reload: reloading cf.pm";
2425	require cf;	4014	require cf;
2426	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4015	cf::_connect_to_perl_1;
2427		4016
2428	warn "loading config and database again";	4017	trace "perl_reload: loading config and database again";
2429	cf::cfg_load;	4018	cf::reload_config;
2430	cf::db_load;
2431		4019
2432	warn "loading extensions";	4020	trace "perl_reload: loading extensions";
2433	cf::load_extensions;	4021	cf::load_extensions;
2434		4022
		4023	if ($REATTACH_ON_RELOAD) {
2435	warn "reattaching attachments to objects/players";	4024	trace "perl_reload: reattaching attachments to objects/players";
2436	_global_reattach;	4025	_global_reattach; # objects, sockets
2437	warn "reattaching attachments to maps";	4026	trace "perl_reload: reattaching attachments to maps";
2438	reattach $_ for values %MAP;	4027	reattach $_ for values %MAP;
		4028	trace "perl_reload: reattaching attachments to players";
		4029	reattach $_ for values %PLAYER;
		4030	}
2439		4031
2440	warn "restarting server ticker";	4032	cf::_post_init 1;
2441		4033
2442	$TICK_WATCHER->start;	4034	trace "perl_reload: leaving sync_job";
		4035
		4036	1
		4037	} or do {
		4038	error $@;
		4039	cf::cleanup "perl_reload: error, exiting.";
		4040	};
		4041
		4042	--$RELOAD;
		4043	}
		4044
		4045	$t1 = AE::time - $t1;
		4046	info "perl_reload: completed in ${t1}s\n";
		4047	};
		4048
		4049	our $RELOAD_WATCHER; # used only during reload
		4050
		4051	sub reload_perl() {
		4052	# doing reload synchronously and two reloads happen back-to-back,
		4053	# coro crashes during coro_state_free->destroy here.
		4054
		4055	$RELOAD_WATCHER ||= cf::async {
		4056	Coro::AIO::aio_wait cache_extensions;
		4057
		4058	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4059	do_reload_perl;
		4060	undef $RELOAD_WATCHER;
		4061	};
2443	};	4062	};
2444		4063	}
2445	if ($@) {
2446	warn $@;
2447	warn "error while reloading, exiting.";
2448	exit 1;
2449	}
2450
2451	warn "reloaded";
2452	};
2453
2454	our $RELOAD_WATCHER; # used only during reload
2455		4064
2456	register_command "reload" => sub {	4065	register_command "reload" => sub {
2457	my ($who, $arg) = @_;	4066	my ($who, $arg) = @_;
2458		4067
2459	if ($who->flag (FLAG_WIZ)) {	4068	if ($who->flag (FLAG_WIZ)) {
2460	$who->message ("reloading server.");	4069	$who->message ("reloading server.");
2461		4070	async {
2462	# doing reload synchronously and two reloads happen back-to-back,	4071	$Coro::current->{desc} = "perl_reload";
2463	# coro crashes during coro_state_free->destroy here.
2464
2465	$RELOAD_WATCHER ||= Event->timer (
2466	reentrant => 0,
2467	after => 0,
2468	data => WF_AUTOCANCEL,
2469	cb => sub {
2470	reload;	4072	reload_perl;
2471	undef $RELOAD_WATCHER;
2472	},
2473	);	4073	};
2474	}	4074	}
2475	};	4075	};
2476		4076
2477	unshift @INC, $LIBDIR;	4077	#############################################################################
2478		4078
2479	my $bug_warning = 0;	4079	my $bug_warning = 0;
2480		4080
2481	$TICK_WATCHER = Event->timer (	4081	sub wait_for_tick() {
2482	reentrant => 0,	4082	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2483	parked => 1,	4083
2484	prio => 0,	4084	$WAIT_FOR_TICK->wait;
2485	at => $NEXT_TICK || $TICK,	4085	}
2486	data => WF_AUTOCANCEL,	4086
2487	cb => sub {	4087	sub wait_for_tick_begin() {
		4088	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4089
		4090	my $signal = new Coro::Signal;
		4091	push @WAIT_FOR_TICK_BEGIN, $signal;
		4092	$signal->wait;
		4093	}
		4094
		4095	sub tick {
2488	if ($Coro::current != $Coro::main) {	4096	if ($Coro::current != $Coro::main) {
2489	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4097	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2490	unless ++$bug_warning > 10;	4098	unless ++$bug_warning > 10;
2491	return;	4099	return;
		4100	}
		4101
		4102	cf::one_tick; # one server iteration
		4103
		4104	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4105
		4106	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4107	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4108	Coro::async_pool {
		4109	$Coro::current->{desc} = "runtime saver";
		4110	write_runtime_sync
		4111	or error "ERROR: unable to write runtime file: $!";
2492	}	4112	};
		4113	}
2493		4114
2494	$NOW = Event::time;	4115	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2495		4116	$sig->send;
2496	cf::server_tick; # one server iteration	4117	}
2497	$RUNTIME += $TICK;
2498	$NEXT_TICK += $TICK;
2499
2500	$WAIT_FOR_TICK->broadcast;	4118	$WAIT_FOR_TICK->broadcast;
2501	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2502		4119
2503	Event::sweep;	4120	$LOAD = ($NOW - $TICK_START) / $TICK;
2504	Coro::cede_notself;	4121	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4122
		4123	if (0) {
		4124	if ($NEXT_TICK) {
		4125	my $jitter = $TICK_START - $NEXT_TICK;
		4126	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4127	debug "jitter $JITTER\n";#d#
2505		4128	}
2506	# my $AFTER = Event::time;
2507	# warn $AFTER - $NOW;#d#
2508
2509	# if we are delayed by four ticks or more, skip them all
2510	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2511
2512	$TICK_WATCHER->at ($NEXT_TICK);
2513	$TICK_WATCHER->start;
2514	},	4129	}
2515	);	4130	}
2516		4131
		4132	{
		4133	# configure BDB
		4134
		4135	BDB::min_parallel 16;
		4136	BDB::max_poll_reqs $TICK * 0.1;
		4137	#$AnyEvent::BDB::WATCHER->priority (1);
		4138
		4139	unless ($DB_ENV) {
		4140	$DB_ENV = BDB::db_env_create;
		4141	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4142	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4143	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4144	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4145	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4146
		4147	cf::sync_job {
		4148	eval {
		4149	BDB::db_env_open
		4150	$DB_ENV,
		4151	$BDBDIR,
		4152	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4153	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4154	0666;
		4155
		4156	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4157	};
		4158
		4159	cf::cleanup "db_env_open(db): $@" if $@;
		4160	};
		4161	}
		4162
		4163	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4164	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4165	};
		4166	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4167	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4168	};
		4169	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4170	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4171	};
		4172	}
		4173
		4174	{
		4175	# configure IO::AIO
		4176
		4177	IO::AIO::min_parallel 8;
2517	IO::AIO::max_poll_time $TICK * 0.1;	4178	IO::AIO::max_poll_time $TICK * 0.1;
		4179	undef $AnyEvent::AIO::WATCHER;
		4180	}
2518		4181
2519	undef $Coro::AIO::WATCHER;	4182	our $_log_backtrace;
2520	$AIO_POLL_WATCHER = Event->io (	4183	our $_log_backtrace_last;
2521	reentrant => 0,
2522	fd => IO::AIO::poll_fileno,
2523	poll => 'r',
2524	prio => 6,
2525	data => WF_AUTOCANCEL,
2526	cb => \&IO::AIO::poll_cb,
2527	);
2528		4184
2529	$WRITE_RUNTIME_WATCHER = Event->timer (	4185	sub _log_backtrace {
2530	reentrant => 0,	4186	my ($msg, @addr) = @_;
2531	data => WF_AUTOCANCEL,	4187
2532	after => 1,	4188	$msg =~ s/\n$//;
2533	interval => 10,	4189
2534	prio => 6, # keep it lowest so it acts like a watchdog	4190	if ($_log_backtrace_last eq $msg) {
2535	cb => Coro::unblock_sub {	4191	LOG llevInfo, "[ABT] $msg\n";
2536	write_runtime	4192	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
2537	or warn "ERROR: unable to write runtime file: $!";	4193	# limit the # of concurrent backtraces
		4194	} elsif ($_log_backtrace < 2) {
		4195	$_log_backtrace_last = $msg;
		4196	++$_log_backtrace;
		4197	my $perl_bt = Carp::longmess $msg;
		4198	async {
		4199	$Coro::current->{desc} = "abt $msg";
		4200
		4201	my @bt = fork_call {
		4202	@addr = map { sprintf "%x", $_ } @addr;
		4203	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4204	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4205	or die "addr2line: $!";
		4206
		4207	my @funcs;
		4208	my @res = <$fh>;
		4209	chomp for @res;
		4210	while (@res) {
		4211	my ($func, $line) = splice @res, 0, 2, ();
		4212	push @funcs, "[$func] $line";
		4213	}
		4214
		4215	@funcs
		4216	};
		4217
		4218	LOG llevInfo, "[ABT] $perl_bt\n";
		4219	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4220	LOG llevInfo, "[ABT] $_\n" for @bt;
		4221	--$_log_backtrace;
		4222	};
		4223	} else {
		4224	LOG llevInfo, "[ABT] $msg\n";
		4225	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2538	},	4226	}
2539	);	4227	}
		4228
		4229	# load additional modules
		4230	require "cf/$_.pm" for @EXTRA_MODULES;
		4231	cf::_connect_to_perl_2;
2540		4232
2541	END { cf::emergency_save }	4233	END { cf::emergency_save }
2542		4234
2543	1	4235	1
2544		4236

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