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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.236 by root, Thu Apr 12 14:18:05 2007 UTC vs.
Revision 1.581 by root, Fri Feb 3 02:04:11 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
9	use Event;	30	use EV;
10	use Opcode;	31	use Opcode;
11	use Safe;	32	use Safe;
12	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
13		36
		37	use Guard ();
14	use Coro 3.52 ();	38	use Coro ();
15	use Coro::State;	39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
16	use Coro::Event;	42	use Coro::AnyEvent;
17	use Coro::Timer;	43	use Coro::Timer;
18	use Coro::Signal;	44	use Coro::Signal;
19	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
20	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
21		52
		53	use JSON::XS 2.01 ();
22	use BDB ();	54	use BDB ();
23	use Data::Dumper;	55	use Data::Dumper;
24	use Digest::MD5;
25	use Fcntl;	56	use Fcntl;
26	use YAML::Syck ();	57	use YAML::XS ();
27	use IO::AIO 2.32 ();	58	use IO::AIO ();
28	use Time::HiRes;	59	use Time::HiRes;
29	use Compress::LZF;	60	use Compress::LZF;
		61	use Digest::MD5 ();
		62
		63	AnyEvent::detect;
30		64
31	# configure various modules to our taste	65	# configure various modules to our taste
32	#	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		75
36	$Event::Eval = 1; # no idea why this is required, but it is	76	# strictly for debugging
37		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
39	$YAML::Syck::ImplicitUnicode = 1;
40
41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42		78
43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
44		82
45	our %COMMAND = ();	83	our %COMMAND = ();
46	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
47		85
48	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
52		91
53	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
54	our @EVENT;	93	our @EVENT;
55	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
56		96
57	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
58	our $TICK_WATCHER;	98
59	our $AIO_POLL_WATCHER;	99	our $DATADIR = datadir;
		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(!)
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	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;
62	our $NOW;	138	our $NOW;
63	our $USE_FSYNC = 1; # use fsync to write maps - default off
64		139
65	our $BDB_POLL_WATCHER;	140	our (%PLAYER, %PLAYER_LOADING); # all users
66	our $DB_ENV;	141	our (%MAP, %MAP_LOADING ); # all maps
67
68	our %CFG;
69
70	our $UPTIME; $UPTIME ||= time;
71	our $RUNTIME;
72
73	our %PLAYER; # all users
74	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	142	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		143
82	# 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 ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		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 $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
		159
85	binmode STDOUT;	160	binmode STDOUT;
86	binmode STDERR;	161	binmode STDERR;
87		162
88	# read virtual server time, if available	163	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
90	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
91	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
92	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
93	}	168	}
94		169
95	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
96	mkdir cf::localdir . "/" . cf::playerdir;	171
97	mkdir cf::localdir . "/" . cf::tmpdir;	172	mkdir $_
98	mkdir cf::localdir . "/" . cf::uniquedir;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		174
102	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
103		176
104	sub cf::map::normalise;	177	sub cf::map::normalise;
105		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
106	#############################################################################	183	#############################################################################
107		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
108	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
109		197
110	=over 4	198	=over 4
111		199
112	=item $cf::UPTIME	200	=item $cf::UPTIME
113		201
114	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.
115		218
116	=item $cf::RUNTIME	219	=item $cf::RUNTIME
117		220
118	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
119	every server tick.	222	every server tick.
120		223
121	=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
122		227
123	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
124	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.
125		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
126	=item $cf::NOW	239	=item $cf::LOAD
127		240
128	The time of the last (current) server tick.	241	The raw value load value from the last tick.
129
130	=item $cf::TICK
131
132	The interval between server ticks, in seconds.
133		242
134	=item %cf::CFG	243	=item %cf::CFG
135		244
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
137	from wherever your confdir points to.	246	from wherever your confdir points to.
138		247
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	248	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		249
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	251	returns directly I<after> the tick processing (and consequently, can only wake one thread
143	processing has been done. Call C<< ->wait >> on them to maximise the	252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
144	window of cpu time available, or simply to synchronise to the server tick.	253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$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.
145		282
146	=back	283	=back
147		284
148	=cut	285	=cut
149		286
150	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
151	*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 {
152	my $msg = join "", @_;	294	my $msg = join "", @_;
153	utf8::encode $msg;
154		295
155	$msg .= "\n"	296	$msg .= "\n"
156	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
157		298
		299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		300
158	LOG llevError, $msg;	301	LOG llevWarn, $msg;
159	};	302	};
160	}	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	};
161		317
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@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';
167	@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)
168		325
169	# 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
170	# within the Safe compartment.	327	# within the Safe compartment.
171	for my $pkg (qw(	328	for my $pkg (qw(
172	cf::global cf::attachable	329	cf::global cf::attachable
173	cf::object cf::object::player	330	cf::object cf::object::player
174	cf::client cf::player	331	cf::client cf::player
175	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
176	cf::map cf::party cf::region	334	cf::party cf::region
177	)) {	335	)) {
178	no strict 'refs';
179	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
180	}	337	}
181		338
182	$Event::DIED = sub {	339	$EV::DIED = sub {
183	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
184	};	341	};
		342
		343	#############################################################################
		344
		345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
185		349
186	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
187		351
188	=over 4	352	=over 4
189		353
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	373	$d
210	} || "[unable to dump $_[0]: '$@']";	374	} || "[unable to dump $_[0]: '$@']";
211	}	375	}
212		376
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	377	=item $scalar = cf::load_file $path
214		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
		391	=item $success = cf::replace_file $path, $data, $sync
		392
		393	Atomically replaces the file at the given $path with new $data, and
		394	optionally $sync the data to disk before replacing the file.
		395
		396	=cut
		397
		398	sub replace_file($$;$) {
		399	my ($path, $data, $sync) = @_;
		400
		401	my $lock = cf::lock_acquire ("replace_file:$path");
		402
		403	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		404	or return;
		405
		406	$data = $data->() if ref $data;
		407
		408	length $data == aio_write $fh, 0, (length $data), $data, 0
		409	or return;
		410
		411	!$sync
		412	or !aio_fsync $fh
		413	or return;
		414
		415	aio_close $fh
		416	and return;
		417
		418	aio_rename "$path~", $path
		419	and return;
		420
		421	if ($sync) {
		422	$path =~ s%/[^/]*$%%;
		423	aio_pathsync $path;
		424	}
		425
		426	1
		427	}
		428
215	=item $ref = cf::from_json $json	429	=item $ref = cf::decode_json $json
216		430
217	Converts a JSON string into the corresponding perl data structure.	431	Converts a JSON string into the corresponding perl data structure.
218		432
219	=item $json = cf::to_json $ref	433	=item $json = cf::encode_json $ref
220		434
221	Converts a perl data structure into its JSON representation.	435	Converts a perl data structure into its JSON representation.
222		436
		437	=cut
		438
		439	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		440
		441	sub encode_json($) { $json_coder->encode ($_[0]) }
		442	sub decode_json($) { $json_coder->decode ($_[0]) }
		443
		444	=item $ref = cf::decode_storable $scalar
		445
		446	Same as Coro::Storable::thaw, so blocks.
		447
		448	=cut
		449
		450	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		451
		452	=item $ref = cf::decode_yaml $scalar
		453
		454	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		455
		456	=cut
		457
		458	sub decode_yaml($) {
		459	fork_call { YAML::XS::Load $_[0] } @_
		460	}
		461
		462	=item $scalar = cf::unlzf $scalar
		463
		464	Same as Compress::LZF::compress, but takes server ticks into account, so
		465	blocks.
		466
		467	=cut
		468
		469	sub unlzf($) {
		470	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		471	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		472	Compress::LZF::decompress $_[0]
		473	}
		474
		475	=item cf::post_init { BLOCK }
		476
		477	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		478	but I<before> the server starts ticking again.
		479
		480	The codeblock will have a single boolean argument to indicate whether this
		481	is a reload or not.
		482
		483	=cut
		484
		485	sub post_init(&) {
		486	push @POST_INIT, shift;
		487	}
		488
		489	sub _post_init {
		490	trace "running post_init jobs";
		491
		492	# run them in parallel...
		493
		494	my @join;
		495
		496	while () {
		497	push @join, map &Coro::async ($_, 0), @POST_INIT;
		498	@POST_INIT = ();
		499
		500	@join or last;
		501
		502	(pop @join)->join;
		503	}
		504	}
		505
223	=item cf::lock_wait $string	506	=item cf::lock_wait $string
224		507
225	Wait until the given lock is available. See cf::lock_acquire.	508	Wait until the given lock is available. See cf::lock_acquire.
226		509
227	=item my $lock = cf::lock_acquire $string	510	=item my $lock = cf::lock_acquire $string
228		511
229	Wait until the given lock is available and then acquires it and returns	512	Wait until the given lock is available and then acquires it and returns
230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	513	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
231	for example when the coroutine gets canceled), the lock is automatically	514	for example when the coroutine gets canceled), the lock is automatically
232	returned.	515	returned.
233		516
		517	Locks are *not* recursive, locking from the same coro twice results in a
		518	deadlocked coro.
		519
234	Lock names should begin with a unique identifier (for example, cf::map::find	520	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	521	uses map_find and cf::map::load uses map_load).
236		522
237	=cut	523	=item $locked = cf::lock_active $string
238		524
239	our %LOCK;	525	Return true if the lock is currently active, i.e. somebody has locked it.
		526
		527	=cut
		528
		529	our $LOCKS = new Coro::SemaphoreSet;
240		530
241	sub lock_wait($) {	531	sub lock_wait($) {
242	my ($key) = @_;	532	$LOCKS->wait ($_[0]);
243
244	# wait for lock, if any
245	while ($LOCK{$key}) {
246	push @{ $LOCK{$key} }, $Coro::current;
247	Coro::schedule;
248	}
249	}	533	}
250		534
251	sub lock_acquire($) {	535	sub lock_acquire($) {
252	my ($key) = @_;	536	$LOCKS->guard ($_[0])
		537	}
253		538
254	# wait, to be sure we are not locked	539	sub lock_active($) {
255	lock_wait $key;	540	$LOCKS->count ($_[0]) < 1
256
257	$LOCK{$key} = [];
258
259	Coro::guard {
260	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };
262	}
263	}	541	}
264		542
265	sub freeze_mainloop {	543	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	544	tick_inhibit_inc;
267		545
268	my $guard = Coro::guard {	546	&Guard::guard (\&tick_inhibit_dec);
269	$TICK_WATCHER->start;	547	}
		548
		549	=item cf::periodic $interval, $cb
		550
		551	Like EV::periodic, but randomly selects a starting point so that the actions
		552	get spread over time.
		553
		554	=cut
		555
		556	sub periodic($$) {
		557	my ($interval, $cb) = @_;
		558
		559	my $start = rand List::Util::min 180, $interval;
		560
		561	EV::periodic $start, $interval, 0, $cb
		562	}
		563
		564	=item cf::get_slot $time[, $priority[, $name]]
		565
		566	Allocate $time seconds of blocking CPU time at priority C<$priority>
		567	(default: 0): This call blocks and returns only when you have at least
		568	C<$time> seconds of cpu time till the next tick. The slot is only valid
		569	till the next cede.
		570
		571	Background jobs should use a priority les than zero, interactive jobs
		572	should use 100 or more.
		573
		574	The optional C<$name> can be used to identify the job to run. It might be
		575	used for statistical purposes and should identify the same time-class.
		576
		577	Useful for short background jobs.
		578
		579	=cut
		580
		581	our @SLOT_QUEUE;
		582	our $SLOT_QUEUE;
		583	our $SLOT_DECAY = 0.9;
		584
		585	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		586	$SLOT_QUEUE = Coro::async {
		587	$Coro::current->desc ("timeslot manager");
		588
		589	my $signal = new Coro::Signal;
		590	my $busy;
		591
		592	while () {
		593	next_job:
		594
		595	my $avail = cf::till_tick;
		596
		597	for (0 .. $#SLOT_QUEUE) {
		598	if ($SLOT_QUEUE[$_][0] <= $avail) {
		599	$busy = 0;
		600	my $job = splice @SLOT_QUEUE, $_, 1, ();
		601	$job->[2]->send;
		602	Coro::cede;
		603	goto next_job;
		604	} else {
		605	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		606	}
		607	}
		608
		609	if (@SLOT_QUEUE) {
		610	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		611	$WAIT_FOR_TICK->wait;
		612	} else {
		613	$busy = 0;
		614	Coro::schedule;
		615	}
270	};	616	}
271	$TICK_WATCHER->stop;	617	};
272	$guard	618
		619	sub get_slot($;$$) {
		620	return if tick_inhibit || $Coro::current == $Coro::main;
		621
		622	my ($time, $pri, $name) = @_;
		623
		624	$time = clamp $time, 0.01, $TICK * .6;
		625
		626	my $sig = new Coro::Signal;
		627
		628	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		629	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		630	$SLOT_QUEUE->ready;
		631	$sig->wait;
273	}	632	}
274		633
275	=item cf::async { BLOCK }	634	=item cf::async { BLOCK }
276		635
277	Currently the same as Coro::async_pool, meaning you cannot use	636	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		641
283	BEGIN { *async = \&Coro::async_pool }	642	BEGIN { *async = \&Coro::async_pool }
284		643
285	=item cf::sync_job { BLOCK }	644	=item cf::sync_job { BLOCK }
286		645
287	The design of crossfire+ requires that the main coro ($Coro::main) is	646	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	647	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	648	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		649	acceptable.
290		650
291	If it must be done, put the blocking parts into C<sync_job>. This will run	651	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	652	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	653	server will be frozen during this time, so the block should either finish
294	fast or be very important.	654	fast or be very important.
…		…
296	=cut	656	=cut
297		657
298	sub sync_job(&) {	658	sub sync_job(&) {
299	my ($job) = @_;	659	my ($job) = @_;
300		660
301	if ($Coro::current == $Coro::main) {	661	if (in_main) {
		662	my $time = AE::time;
		663
302	# this is the main coro, too bad, we have to block	664	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	665	# till the operation succeeds, freezing the server :/
304		666
305	# TODO: use suspend/resume instead	667	#LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	668
307	my $freeze_guard = freeze_mainloop;	669	my $freeze_guard = freeze_mainloop;
308		670
309	my $busy = 1;	671	my $busy = 1;
310	my @res;	672	my @res;
311		673
312	(async {	674	(async {
		675	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	676	@res = eval { $job->() };
314	warn $@ if $@;	677	error $@ if $@;
315	undef $busy;	678	undef $busy;
316	})->prio (Coro::PRIO_MAX);	679	})->prio (Coro::PRIO_MAX);
317		680
318	while ($busy) {	681	while ($busy) {
319	Coro::cede or Event::one_event;	682	if (Coro::nready) {
		683	Coro::cede_notself;
		684	} else {
		685	EV::loop EV::LOOP_ONESHOT;
320	}	686	}
		687	}
		688
		689	my $time = AE::time - $time;
		690
		691	$TICK_START += $time; # do not account sync jobs to server load
321		692
322	wantarray ? @res : $res[0]	693	wantarray ? @res : $res[0]
323	} else {	694	} else {
324	# we are in another coroutine, how wonderful, everything just works	695	# we are in another coroutine, how wonderful, everything just works
325		696
…		…
345	$EXT_CORO{$coro+0} = $coro;	716	$EXT_CORO{$coro+0} = $coro;
346		717
347	$coro	718	$coro
348	}	719	}
349		720
350	sub write_runtime {	721	=item fork_call { }, @args
351	my $guard = cf::lock_acquire "write_runtime";
352		722
353	my $runtime = cf::localdir . "/runtime";	723	Executes the given code block with the given arguments in a seperate
		724	process, returning the results. Everything must be serialisable with
		725	Coro::Storable. May, of course, block. Note that the executed sub may
		726	never block itself or use any form of event handling.
354		727
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	728	=cut
356	or return;
357		729
358	my $value = $cf::RUNTIME + 90 + 10;	730	sub post_fork {
359	# 10 is the runtime save interval, for a monotonic clock	731	reset_signals;
360	# 60 allows for the watchdog to kill the server.	732	}
361		733
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	734	sub fork_call(&@) {
363	and return;	735	my ($cb, @args) = @_;
364		736
365	# always fsync - this file is important	737	# we seemingly have to make a local copy of the whole thing,
366	aio_fsync $fh	738	# otherwise perl prematurely frees the stuff :/
367	and return;	739	# TODO: investigate and fix (likely this will be rather laborious)
368		740
369	close $fh	741	my @res = Coro::Util::fork_eval {
370	or return;	742	cf::post_fork;
		743	&$cb
		744	} @args;
371		745
372	aio_rename "$runtime~", $runtime	746	wantarray ? @res : $res[-1]
373	and return;	747	}
374		748
		749	sub objinfo {
375	1	750	(
		751	"counter value" => cf::object::object_count,
		752	"objects created" => cf::object::create_count,
		753	"objects destroyed" => cf::object::destroy_count,
		754	"freelist size" => cf::object::free_count,
		755	"allocated objects" => cf::object::objects_size,
		756	"active objects" => cf::object::actives_size,
		757	)
		758	}
		759
		760	=item $coin = coin_from_name $name
		761
		762	=cut
		763
		764	our %coin_alias = (
		765	"silver" => "silvercoin",
		766	"silvercoin" => "silvercoin",
		767	"silvercoins" => "silvercoin",
		768	"gold" => "goldcoin",
		769	"goldcoin" => "goldcoin",
		770	"goldcoins" => "goldcoin",
		771	"platinum" => "platinacoin",
		772	"platinumcoin" => "platinacoin",
		773	"platinumcoins" => "platinacoin",
		774	"platina" => "platinacoin",
		775	"platinacoin" => "platinacoin",
		776	"platinacoins" => "platinacoin",
		777	"royalty" => "royalty",
		778	"royalties" => "royalty",
		779	);
		780
		781	sub coin_from_name($) {
		782	$coin_alias{$_[0]}
		783	? cf::arch::find $coin_alias{$_[0]}
		784	: undef
		785	}
		786
		787	=item $value = cf::db_get $family => $key
		788
		789	Returns a single value from the environment database.
		790
		791	=item cf::db_put $family => $key => $value
		792
		793	Stores the given C<$value> in the family. It can currently store binary
		794	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		795
		796	=item $db = cf::db_table "name"
		797
		798	Create and/or open a new database table. The string must not be "db" and must be unique
		799	within each server.
		800
		801	=cut
		802
		803	sub db_table($) {
		804	cf::error "db_get called from main context"
		805	if $Coro::current == $Coro::main;
		806
		807	my ($name) = @_;
		808	my $db = BDB::db_create $DB_ENV;
		809
		810	eval {
		811	$db->set_flags (BDB::CHKSUM);
		812
		813	utf8::encode $name;
		814	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		815	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		816	cf::cleanup "db_open(db): $!" if $!;
		817	};
		818	cf::cleanup "db_open(db): $@" if $@;
		819
		820	$db
		821	}
		822
		823	our $DB;
		824
		825	sub db_init {
		826	$DB ||= db_table "db";
		827	}
		828
		829	sub db_get($$) {
		830	my $key = "$_[0]/$_[1]";
		831
		832	cf::error "db_get called from main context"
		833	if $Coro::current == $Coro::main;
		834
		835	BDB::db_get $DB, undef, $key, my $data;
		836
		837	$! ? ()
		838	: $data
		839	}
		840
		841	sub db_put($$$) {
		842	BDB::dbreq_pri 4;
		843	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		844	}
		845
		846	=item cf::cache $id => [$paths...], $processversion => $process
		847
		848	Generic caching function that returns the value of the resource $id,
		849	caching and regenerating as required.
		850
		851	This function can block.
		852
		853	=cut
		854
		855	sub cache {
		856	my ($id, $src, $processversion, $process) = @_;
		857
		858	my $meta =
		859	join "\x00",
		860	$processversion,
		861	map {
		862	aio_stat $_
		863	and Carp::croak "$_: $!";
		864
		865	($_, (stat _)[7,9])
		866	} @$src;
		867
		868	my $dbmeta = db_get cache => "$id/meta";
		869	if ($dbmeta ne $meta) {
		870	# changed, we may need to process
		871
		872	my @data;
		873	my $md5;
		874
		875	for (0 .. $#$src) {
		876	$data[$_] = load_file $src->[$_];
		877	}
		878
		879	# if processing is expensive, check
		880	# checksum first
		881	if (1) {
		882	$md5 =
		883	join "\x00",
		884	$processversion,
		885	map {
		886	cf::cede_to_tick;
		887	($src->[$_], Digest::MD5::md5_hex $data[$_])
		888	} 0.. $#$src;
		889
		890
		891	my $dbmd5 = db_get cache => "$id/md5";
		892	if ($dbmd5 eq $md5) {
		893	db_put cache => "$id/meta", $meta;
		894
		895	return db_get cache => "$id/data";
		896	}
		897	}
		898
		899	my $t1 = Time::HiRes::time;
		900	my $data = $process->(\@data);
		901	my $t2 = Time::HiRes::time;
		902
		903	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		904
		905	db_put cache => "$id/data", $data;
		906	db_put cache => "$id/md5" , $md5;
		907	db_put cache => "$id/meta", $meta;
		908
		909	return $data;
		910	}
		911
		912	db_get cache => "$id/data"
376	}	913	}
377		914
378	=item cf::datalog type => key => value, ...	915	=item cf::datalog type => key => value, ...
379		916
380	Log a datalog packet of the given type with the given key-value pairs.	917	Log a datalog packet of the given type with the given key-value pairs.
381		918
382	=cut	919	=cut
383		920
384	sub datalog($@) {	921	sub datalog($@) {
385	my ($type, %kv) = @_;	922	my ($type, %kv) = @_;
386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	923	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
387	}	924	}
388		925
389	=back	926	=back
390		927
391	=cut	928	=cut
392		929
393	#############################################################################	930	#############################################################################
394		931
395	=head2 ATTACHABLE OBJECTS	932	=head2 ATTACHABLE OBJECTS
396		933
397	Many objects in crossfire are so-called attachable objects. That means you can	934	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	935	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	936	to it. All such attachable objects support the following methods.
400		937
401	In the following description, CLASS can be any of C<global>, C<object>	938	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	939	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	940	Deliantra).
404		941
405	=over 4	942	=over 4
406		943
407	=item $attachable->attach ($attachment, key => $value...)	944	=item $attachable->attach ($attachment, key => $value...)
408		945
…		…
452	=item cf::CLASS::attachment $name, ...	989	=item cf::CLASS::attachment $name, ...
453		990
454	Register an attachment by C<$name> through which attachable objects of the	991	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	992	given CLASS can refer to this attachment.
456		993
457	Some classes such as crossfire maps and objects can specify attachments	994	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	995	that are attached at load/instantiate time, thus the need for a name.
459		996
460	These calls expect any number of the following handler/hook descriptions:	997	These calls expect any number of the following handler/hook descriptions:
461		998
462	=over 4	999	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	1108	$registry = $CB_TYPE[$object_type] ||= [];
572		1109
573	} elsif ($type eq "subtype") {	1110	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	1111	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	1112	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1113	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		1114
578	} elsif ($type eq "package") {	1115	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	1116	my $pkg = shift @arg;
580		1117
581	while (my ($name, $id) = each %cb_id) {	1118	while (my ($name, $id) = each %cb_id) {
…		…
586		1123
587	} elsif (exists $cb_id{$type}) {	1124	} elsif (exists $cb_id{$type}) {
588	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1125	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
589		1126
590	} elsif (ref $type) {	1127	} elsif (ref $type) {
591	warn "attaching objects not supported, ignoring.\n";	1128	error "attaching objects not supported, ignoring.\n";
592		1129
593	} else {	1130	} else {
594	shift @arg;	1131	shift @arg;
595	warn "attach argument '$type' not supported, ignoring.\n";	1132	error "attach argument '$type' not supported, ignoring.\n";
596	}	1133	}
597	}	1134	}
598	}	1135	}
599		1136
600	sub _object_attach {	1137	sub _object_attach {
…		…
610	_attach $registry, $klass, @attach;	1147	_attach $registry, $klass, @attach;
611	}	1148	}
612		1149
613	$obj->{$name} = \%arg;	1150	$obj->{$name} = \%arg;
614	} else {	1151	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	1152	info "object uses attachment '$name' which is not available, postponing.\n";
616	}	1153	}
617		1154
618	$obj->{_attachment}{$name} = undef;	1155	$obj->{_attachment}{$name} = undef;
619	}	1156	}
620		1157
…		…
622	if (ref $_[0]) {	1159	if (ref $_[0]) {
623	_object_attach @_;	1160	_object_attach @_;
624	} else {	1161	} else {
625	_attach shift->_attach_registry, @_;	1162	_attach shift->_attach_registry, @_;
626	}	1163	}
		1164	_recalc_want;
627	};	1165	};
628		1166
629	# all those should be optimised	1167	# all those should be optimised
630	sub cf::attachable::detach {	1168	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	1169	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	1172	delete $obj->{_attachment}{$name};
635	reattach ($obj);	1173	reattach ($obj);
636	} else {	1174	} else {
637	Carp::croak "cannot, currently, detach class attachments";	1175	Carp::croak "cannot, currently, detach class attachments";
638	}	1176	}
		1177	_recalc_want;
639	};	1178	};
640		1179
641	sub cf::attachable::attached {	1180	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1181	my ($obj, $name) = @_;
643		1182
…		…
658	";	1197	";
659	die if $@;	1198	die if $@;
660	}	1199	}
661		1200
662	our $override;	1201	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1202	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		1203
665	sub override {	1204	sub override {
666	$override = 1;	1205	$override = 1;
667	@invoke_results = ();	1206	@INVOKE_RESULTS = (@_);
668	}	1207	}
669		1208
670	sub do_invoke {	1209	sub do_invoke {
671	my $event = shift;	1210	my $event = shift;
672	my $callbacks = shift;	1211	my $callbacks = shift;
673		1212
674	@invoke_results = ();	1213	@INVOKE_RESULTS = ();
675		1214
676	local $override;	1215	local $override;
677		1216
678	for (@$callbacks) {	1217	for (@$callbacks) {
679	eval { &{$_->[1]} };	1218	eval { &{$_->[1]} };
680		1219
681	if ($@) {	1220	if ($@) {
682	warn "$@";
683	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1221	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
684	override;	1222	override;
685	}	1223	}
686		1224
687	return 1 if $override;	1225	return 1 if $override;
688	}	1226	}
689		1227
690	0	1228	0
691	}	1229	}
692		1230
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1231	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1232
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1233	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1234
697	Generate an object-specific event with the given arguments.	1235	Generate an object-specific event with the given arguments.
698		1236
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1237	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	1238	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	1239	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1240
703	=back	1241	=back
704		1242
705	=cut	1243	=cut
706		1244
707	#############################################################################	1245	#############################################################################
708	# object support	1246	# object support
		1247
		1248	sub _object_equal($$);
		1249	sub _object_equal($$) {
		1250	my ($a, $b) = @_;
		1251
		1252	return 0 unless (ref $a) eq (ref $b);
		1253
		1254	if ("HASH" eq ref $a) {
		1255	my @ka = keys %$a;
		1256	my @kb = keys %$b;
		1257
		1258	return 0 if @ka != @kb;
		1259
		1260	for (0 .. $#ka) {
		1261	return 0 unless $ka[$_] eq $kb[$_];
		1262	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1263	}
		1264
		1265	} elsif ("ARRAY" eq ref $a) {
		1266
		1267	return 0 if @$a != @$b;
		1268
		1269	for (0 .. $#$a) {
		1270	return 0 unless _object_equal $a->[$_], $b->[$_];
		1271	}
		1272
		1273	} elsif ($a ne $b) {
		1274	return 0;
		1275	}
		1276
		1277	1
		1278	}
		1279
		1280	our $SLOW_MERGES;#d#
		1281	sub _can_merge {
		1282	my ($ob1, $ob2) = @_;
		1283
		1284	++$SLOW_MERGES;#d#
		1285
		1286	# we do the slow way here
		1287	return _object_equal $ob1, $ob2
		1288	}
709		1289
710	sub reattach {	1290	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1291	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1292	my ($obj) = @_;
713		1293
		1294	# no longer needed after getting rid of delete_package?
714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1295	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
715		1296
716	my $registry = $obj->registry;	1297	my $registry = $obj->registry;
717		1298
718	@$registry = ();	1299	@$registry = ();
719		1300
…		…
724	for (@$attach) {	1305	for (@$attach) {
725	my ($klass, @attach) = @$_;	1306	my ($klass, @attach) = @$_;
726	_attach $registry, $klass, @attach;	1307	_attach $registry, $klass, @attach;
727	}	1308	}
728	} else {	1309	} else {
729	warn "object uses attachment '$name' that is not available, postponing.\n";	1310	info "object uses attachment '$name' that is not available, postponing.\n";
730	}	1311	}
731	}	1312	}
732	}	1313	}
733		1314
734	cf::attachable->attach (	1315	cf::attachable->attach (
735	prio => -1000000,	1316	prio => -1000000,
736	on_instantiate => sub {	1317	on_instantiate => sub {
737	my ($obj, $data) = @_;	1318	my ($obj, $data) = @_;
738		1319
739	$data = from_json $data;	1320	$data = decode_json $data;
740		1321
741	for (@$data) {	1322	for (@$data) {
742	my ($name, $args) = @$_;	1323	my ($name, $args) = @$_;
743		1324
744	$obj->attach ($name, %{$args || {} });	1325	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1341	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1342	my ($filename, $rdata, $objs) = @_;
762		1343
763	sync_job {	1344	sync_job {
764	if (length $$rdata) {	1345	if (length $$rdata) {
		1346	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1347	trace sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1348	$decname, length $$rdata, scalar @$objs
		1349	if $VERBOSE_IO;
767		1350
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1351	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1352	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1353	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	aio_fsync $fh if $cf::USE_FSYNC;	1354	if ($cf::USE_FSYNC) {
		1355	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;
		1356	aio_fsync $fh;
		1357	}
772	close $fh;	1358	aio_close $fh;
773		1359
774	if (@$objs) {	1360	if (@$objs) {
775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1361	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
776	chmod SAVE_MODE, $fh;	1362	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1363	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1364	aio_write $fh, 0, (length $data), $data, 0;
779	aio_fsync $fh if $cf::USE_FSYNC;	1365	if ($cf::USE_FSYNC) {
		1366	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;
		1367	aio_fsync $fh;
		1368	}
780	close $fh;	1369	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1370	aio_rename "$filename.pst~", "$filename.pst";
782	}	1371	}
783	} else {	1372	} else {
784	aio_unlink "$filename.pst";	1373	aio_unlink "$filename.pst";
785	}	1374	}
786		1375
787	aio_rename "$filename~", $filename;	1376	aio_rename "$filename~", $filename;
		1377
		1378	$filename =~ s%/[^/]+$%%;
		1379	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1380	} else {
789	warn "FATAL: $filename~: $!\n";	1381	error "unable to save objects: $filename~: $!\n";
790	}	1382	}
791	} else {	1383	} else {
792	aio_unlink $filename;	1384	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1385	aio_unlink "$filename.pst";
794	}	1386	}
795	}	1387	};
796	}	1388	}
797		1389
798	sub object_freezer_as_string {	1390	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1391	my ($rdata, $objs) = @_;
800		1392
…		…
812	or return;	1404	or return;
813		1405
814	unless (aio_stat "$filename.pst") {	1406	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1407	(aio_load "$filename.pst", $av) >= 0
816	or return;	1408	or return;
		1409
817	$av = eval { (Storable::thaw $av)->{objs} };	1410	my $st = eval { Coro::Storable::thaw $av };
		1411	$av = $st->{objs};
818	}	1412	}
819		1413
		1414	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1415	trace sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1416	$decname, length $data, scalar @{$av || []}
		1417	if $VERBOSE_IO;
		1418
822	return ($data, $av);	1419	($data, $av)
823	}	1420	}
		1421
		1422	=head2 COMMAND CALLBACKS
		1423
		1424	=over 4
		1425
		1426	=cut
824		1427
825	#############################################################################	1428	#############################################################################
826	# command handling &c	1429	# command handling &c
827		1430
828	=item cf::register_command $name => \&callback($ob,$args);	1431	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1444	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1445	}
843		1446
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1447	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1448
846	Register a callbackf ro execution when the client sends an extcmd packet.	1449	Register a callback for execution when the client sends an (synchronous)
		1450	extcmd packet. Ext commands will be processed in the order they are
		1451	received by the server, like other user commands. The first argument is
		1452	the logged-in player. Ext commands can only be processed after a player
		1453	has logged in successfully.
847		1454
848	If the callback returns something, it is sent back as if reply was being	1455	If the callback returns something, it is sent back as if reply was being
849	called.	1456	called.
850		1457
		1458	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1459
		1460	Register a callback for execution when the client sends an (asynchronous)
		1461	exticmd packet. Exti commands are processed by the server as soon as they
		1462	are received, i.e. out of order w.r.t. other commands. The first argument
		1463	is a client socket. Exti commands can be received anytime, even before
		1464	log-in.
		1465
		1466	If the callback returns something, it is sent back as if reply was being
		1467	called.
		1468
851	=cut	1469	=cut
852		1470
853	sub register_extcmd {	1471	sub register_extcmd {
854	my ($name, $cb) = @_;	1472	my ($name, $cb) = @_;
855		1473
856	$EXTCMD{$name} = $cb;	1474	$EXTCMD{$name} = $cb;
857	}	1475	}
858		1476
		1477	sub register_exticmd {
		1478	my ($name, $cb) = @_;
		1479
		1480	$EXTICMD{$name} = $cb;
		1481	}
		1482
		1483	use File::Glob ();
		1484
859	cf::player->attach (	1485	cf::player->attach (
860	on_command => sub {	1486	on_unknown_command => sub {
861	my ($pl, $name, $params) = @_;	1487	my ($pl, $name, $params) = @_;
862		1488
863	my $cb = $COMMAND{$name}	1489	my $cb = $COMMAND{$name}
864	or return;	1490	or return;
865		1491
…		…
870	cf::override;	1496	cf::override;
871	},	1497	},
872	on_extcmd => sub {	1498	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1499	my ($pl, $buf) = @_;
874		1500
875	my $msg = eval { from_json $buf };	1501	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1502
877	if (ref $msg) {	1503	if (ref $msg) {
		1504	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1505
		1506	my @reply;
		1507
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1508	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1509	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1510	}
		1511
		1512	$pl->ext_reply ($reply, @reply)
		1513	if $reply;
		1514
883	} else {	1515	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1516	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1517	}
886		1518
887	cf::override;	1519	cf::override;
888	},	1520	},
889	);	1521	);
890		1522
		1523	# "readahead" all extensions
891	sub load_extension {	1524	sub cache_extensions {
892	my ($path) = @_;	1525	my $grp = IO::AIO::aio_group;
893		1526
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1527	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1528	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1529	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1530	}
919	die $@;
920	}	1531	};
921		1532
922	push @EXTS, $pkg;	1533	$grp
923	}	1534	}
924		1535
925	sub load_extensions {	1536	sub load_extensions {
		1537	info "loading extensions...";
		1538
		1539	cf::sync_job {
		1540	my %todo;
		1541
926	for my $ext (<$LIBDIR/*.ext>) {	1542	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1543	next unless -r $path;
928	eval {	1544
929	load_extension $ext;	1545	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1546	my $base = $1;
		1547	my $pkg = $1;
		1548	$pkg =~ s/[^[:word:]]/_/g;
		1549	$pkg = "ext::$pkg";
		1550
		1551	open my $fh, "<:utf8", $path
		1552	or die "$path: $!";
		1553
		1554	my $source = do { local $/; <$fh> };
		1555
		1556	my %ext = (
		1557	path => $path,
		1558	base => $base,
		1559	pkg => $pkg,
		1560	);
		1561
		1562	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1563	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1564
		1565	$ext{source} =
		1566	"package $pkg; use common::sense;\n"
		1567	. "#line 1 \"$path\"\n{\n"
		1568	. $source
		1569	. "\n};\n1";
		1570
		1571	$todo{$base} = \%ext;
		1572	}
		1573
		1574	my $pass = 0;
		1575	my %done;
		1576	while (%todo) {
		1577	my $progress;
		1578
		1579	++$pass;
		1580
		1581	ext:
		1582	while (my ($k, $v) = each %todo) {
		1583	for (split /,\s*/, $v->{meta}{depends}) {
		1584	next ext
		1585	unless exists $done{$_};
		1586	}
		1587
		1588	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1589
		1590	my $active = eval $v->{source};
		1591
		1592	if (length $@) {
		1593	error "$v->{path}: $@\n";
		1594
		1595	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1596	if exists $v->{meta}{mandatory};
		1597
		1598	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1599	delete $todo{$k};
		1600	} else {
		1601	$done{$k} = delete $todo{$k};
		1602	push @EXTS, $v->{pkg};
		1603	$progress = 1;
		1604
		1605	info "$v->{base}: extension inactive.\n"
		1606	unless $active;
		1607	}
930	1	1608	}
931	} or warn "$ext not loaded: $@";	1609
		1610	unless ($progress) {
		1611	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1612
		1613	while (my ($k, $v) = each %todo) {
		1614	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1615	if exists $v->{meta}{mandatory};
		1616	}
		1617
		1618	last;
		1619	}
		1620	}
932	}	1621	};
933	}	1622	}
934		1623
935	#############################################################################	1624	#############################################################################
936		1625
		1626	=back
		1627
937	=head2 CORE EXTENSIONS	1628	=head2 CORE EXTENSIONS
938		1629
939	Functions and methods that extend core crossfire objects.	1630	Functions and methods that extend core deliantra objects.
940		1631
941	=cut	1632	=cut
942		1633
943	package cf::player;	1634	package cf::player;
944		1635
…		…
946		1637
947	=head3 cf::player	1638	=head3 cf::player
948		1639
949	=over 4	1640	=over 4
950		1641
		1642	=item cf::player::num_playing
		1643
		1644	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1645
		1646	=cut
		1647
		1648	sub num_playing {
		1649	scalar grep
		1650	$_->ob->map
		1651	&& !$_->hidden
		1652	&& !$_->ob->flag (cf::FLAG_WIZ),
		1653	cf::player::list
		1654	}
		1655
951	=item cf::player::find $login	1656	=item cf::player::find $login
952		1657
953	Returns the given player object, loading it if necessary (might block).	1658	Returns the given player object, loading it if necessary (might block).
954		1659
955	=cut	1660	=cut
956		1661
957	sub playerdir($) {	1662	sub playerdir($) {
958	cf::localdir	1663	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1664	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1665	}
964		1666
965	sub path($) {	1667	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1668	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
976		1678
977	sub exists($) {	1679	sub exists($) {
978	my ($login) = @_;	1680	my ($login) = @_;
979		1681
980	$cf::PLAYER{$login}	1682	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1683	or !aio_stat path $login
982	}	1684	}
983		1685
984	sub find($) {	1686	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1687	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1688	my $login = $_[0];
…		…
993	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1695	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
994	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1696	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
995	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1697	aio_unlink +(playerdir $login) . "/$login.pl.pst";
996	aio_unlink +(playerdir $login) . "/$login.pl";	1698	aio_unlink +(playerdir $login) . "/$login.pl";
997		1699
998	my $pl = load_pl path $login	1700	my $f = new_from_file cf::object::thawer path $login
999	or return;	1701	or return;
		1702
		1703	my $pl = cf::player::load_pl $f
		1704	or return;
		1705
		1706	local $cf::PLAYER_LOADING{$login} = $pl;
		1707	$f->resolve_delayed_derefs;
1000	$cf::PLAYER{$login} = $pl	1708	$cf::PLAYER{$login} = $pl
1001	}	1709	}
1002	}	1710	}
1003	}	1711	}
		1712
		1713	cf::player->attach (
		1714	on_load => sub {
		1715	my ($pl, $path) = @_;
		1716
		1717	# restore slots saved in save, below
		1718	my $slots = delete $pl->{_slots};
		1719
		1720	$pl->ob->current_weapon ($slots->[0]);
		1721	$pl->combat_ob ($slots->[1]);
		1722	$pl->ranged_ob ($slots->[2]);
		1723	},
		1724	);
1004		1725
1005	sub save($) {	1726	sub save($) {
1006	my ($pl) = @_;	1727	my ($pl) = @_;
1007		1728
1008	return if $pl->{deny_save};	1729	return if $pl->{deny_save};
…		…
1013	return if $pl->{deny_save};	1734	return if $pl->{deny_save};
1014		1735
1015	aio_mkdir playerdir $pl, 0770;	1736	aio_mkdir playerdir $pl, 0770;
1016	$pl->{last_save} = $cf::RUNTIME;	1737	$pl->{last_save} = $cf::RUNTIME;
1017		1738
		1739	cf::get_slot 0.01;
		1740
		1741	# save slots, to be restored later
		1742	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1743
1018	$pl->save_pl ($path);	1744	$pl->save_pl ($path);
1019	Coro::cede;	1745	cf::cede_to_tick;
1020	}	1746	}
1021		1747
1022	sub new($) {	1748	sub new($) {
1023	my ($login) = @_;	1749	my ($login) = @_;
1024		1750
…		…
1030	$cf::PLAYER{$login} = $self;	1756	$cf::PLAYER{$login} = $self;
1031		1757
1032	$self	1758	$self
1033	}	1759	}
1034		1760
		1761	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1762
		1763	=cut
		1764
		1765	sub send_msg {
		1766	my $ns = shift->ns
		1767	or return;
		1768	$ns->send_msg (@_);
		1769	}
		1770
1035	=item $pl->quit_character	1771	=item $pl->quit_character
1036		1772
1037	Nukes the player without looking back. If logged in, the connection will	1773	Nukes the player without looking back. If logged in, the connection will
1038	be destroyed. May block for a long time.	1774	be destroyed. May block for a long time.
1039		1775
…		…
1043	my ($pl) = @_;	1779	my ($pl) = @_;
1044		1780
1045	my $name = $pl->ob->name;	1781	my $name = $pl->ob->name;
1046		1782
1047	$pl->{deny_save} = 1;	1783	$pl->{deny_save} = 1;
1048	$pl->password ("*"); # this should lock out the player until we nuked the dir	1784	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1049		1785
1050	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1786	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1051	$pl->deactivate;	1787	$pl->deactivate;
		1788
		1789	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1052	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1790	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1791	ext::highscore::check ($pl->ob);
		1792
1053	$pl->ns->destroy if $pl->ns;	1793	$pl->ns->destroy if $pl->ns;
1054		1794
1055	my $path = playerdir $pl;	1795	my $path = playerdir $pl;
1056	my $temp = "$path~$cf::RUNTIME~deleting~";	1796	my $temp = "$path~$cf::RUNTIME~deleting~";
1057	aio_rename $path, $temp;	1797	aio_rename $path, $temp;
…		…
1086	while and may block, so not sync_job-capable, ever.	1826	while and may block, so not sync_job-capable, ever.
1087		1827
1088	=cut	1828	=cut
1089		1829
1090	sub list_logins {	1830	sub list_logins {
1091	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1831	my $dirs = aio_readdir $PLAYERDIR
1092	or return [];	1832	or return [];
1093		1833
1094	my @logins;	1834	my @logins;
1095		1835
1096	for my $login (@$dirs) {	1836	for my $login (@$dirs) {
		1837	my $path = path $login;
		1838
		1839	# a .pst is a dead give-away for a valid player
		1840	# if no pst file found, open and chekc for blocked users
		1841	if (aio_stat "$path.pst") {
1097	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1842	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1098	aio_read $fh, 0, 512, my $buf, 0 or next;	1843	aio_read $fh, 0, 512, my $buf, 0 or next;
1099	$buf !~ /^password -------------$/m or next; # official not-valid tag	1844	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1845	}
1100		1846
1101	utf8::decode $login;	1847	utf8::decode $login;
1102	push @logins, $login;	1848	push @logins, $login;
1103	}	1849	}
1104		1850
1105	\@logins	1851	\@logins
1106	}	1852	}
1107		1853
1108	=item $player->maps	1854	=item $player->maps
		1855
		1856	=item cf::player::maps $login
1109		1857
1110	Returns an arrayref of map paths that are private for this	1858	Returns an arrayref of map paths that are private for this
1111	player. May block.	1859	player. May block.
1112		1860
1113	=cut	1861	=cut
…		…
1131	}	1879	}
1132		1880
1133	\@paths	1881	\@paths
1134	}	1882	}
1135		1883
		1884	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1885
		1886	Expand deliantra pod fragments into protocol xml.
		1887
1136	=item $player->ext_reply ($msgid, %msg)	1888	=item $player->ext_reply ($msgid, @msg)
1137		1889
1138	Sends an ext reply to the player.	1890	Sends an ext reply to the player.
1139		1891
1140	=cut	1892	=cut
1141		1893
1142	sub ext_reply($$%) {	1894	sub ext_reply($$@) {
1143	my ($self, $id, %msg) = @_;	1895	my ($self, $id, @msg) = @_;
1144		1896
1145	$msg{msgid} = $id;	1897	$self->ns->ext_reply ($id, @msg)
1146
1147	$self->send ("ext " . cf::to_json \%msg);
1148	}	1898	}
1149		1899
1150	=item $player->ext_event ($type, %msg)	1900	=item $player->ext_msg ($type, @msg)
1151		1901
1152	Sends an ext event to the client.	1902	Sends an ext event to the client.
1153		1903
1154	=cut	1904	=cut
1155		1905
1156	sub ext_event($$%) {	1906	sub ext_msg($$@) {
1157	my ($self, $type, %msg) = @_;	1907	my ($self, $type, @msg) = @_;
1158		1908
1159	$self->ns->ext_event ($type, %msg);	1909	$self->ns->ext_msg ($type, @msg);
1160	}	1910	}
1161		1911
1162	package cf;	1912	=head3 cf::region
		1913
		1914	=over 4
		1915
		1916	=cut
		1917
		1918	package cf::region;
		1919
		1920	=item cf::region::find_by_path $path
		1921
		1922	Tries to decuce the likely region for a map knowing only its path.
		1923
		1924	=cut
		1925
		1926	sub find_by_path($) {
		1927	my ($path) = @_;
		1928
		1929	$path =~ s/^~[^\/]*//; # skip ~login
		1930
		1931	my ($match, $specificity);
		1932
		1933	for my $region (list) {
		1934	if ($region->{match} && $path =~ $region->{match}) {
		1935	($match, $specificity) = ($region, $region->specificity)
		1936	if $region->specificity > $specificity;
		1937	}
		1938	}
		1939
		1940	$match
		1941	}
1163		1942
1164	=back	1943	=back
1165
1166		1944
1167	=head3 cf::map	1945	=head3 cf::map
1168		1946
1169	=over 4	1947	=over 4
1170		1948
…		…
1182	our $MAX_RESET = 3600;	1960	our $MAX_RESET = 3600;
1183	our $DEFAULT_RESET = 3000;	1961	our $DEFAULT_RESET = 3000;
1184		1962
1185	sub generate_random_map {	1963	sub generate_random_map {
1186	my ($self, $rmp) = @_;	1964	my ($self, $rmp) = @_;
1187	# mit "rum" bekleckern, nicht	1965
		1966	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1967
1188	$self->_create_random_map (	1968	$self->_create_random_map ($rmp);
1189	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1190	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1191	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1192	$rmp->{exit_on_final_map},
1193	$rmp->{xsize}, $rmp->{ysize},
1194	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1195	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1196	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1197	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1198	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1199	(cf::region::find $rmp->{region}), $rmp->{custom}
1200	)
1201	}	1969	}
1202		1970
1203	=item cf::map->register ($regex, $prio)	1971	=item cf::map->register ($regex, $prio)
1204		1972
1205	Register a handler for the map path matching the given regex at the	1973	Register a handler for the map path matching the given regex at the
…		…
1210		1978
1211	sub register {	1979	sub register {
1212	my (undef, $regex, $prio) = @_;	1980	my (undef, $regex, $prio) = @_;
1213	my $pkg = caller;	1981	my $pkg = caller;
1214		1982
1215	no strict;
1216	push @{"$pkg\::ISA"}, __PACKAGE__;	1983	push @{"$pkg\::ISA"}, __PACKAGE__;
1217		1984
1218	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1985	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1219	}	1986	}
1220		1987
1221	# also paths starting with '/'	1988	# also paths starting with '/'
1222	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1989	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1223		1990
1224	sub thawer_merge {	1991	sub thawer_merge {
1225	my ($self, $merge) = @_;	1992	my ($self, $merge) = @_;
1226		1993
1227	# we have to keep some variables in memory intact	1994	# we have to keep some variables in memory intact
1228	local $self->{path};	1995	local $self->{path};
1229	local $self->{load_path};	1996	local $self->{load_path};
1230	local $self->{deny_save};
1231	local $self->{deny_reset};
1232		1997
1233	$self->SUPER::thawer_merge ($merge);	1998	$self->SUPER::thawer_merge ($merge);
1234	}	1999	}
1235		2000
1236	sub normalise {	2001	sub normalise {
1237	my ($path, $base) = @_;	2002	my ($path, $base) = @_;
1238		2003
1239	$path = "$path"; # make sure its a string	2004	$path = "$path"; # make sure it's a string
1240		2005
1241	$path =~ s/\.map$//;	2006	$path =~ s/\.map$//;
1242		2007
1243	# map plan:	2008	# map plan:
1244	#	2009	#
…		…
1259	$base =~ s{[^/]+/?$}{};	2024	$base =~ s{[^/]+/?$}{};
1260	$path = "$base/$path";	2025	$path = "$base/$path";
1261	}	2026	}
1262		2027
1263	for ($path) {	2028	for ($path) {
1264	redo if s{//}{/};
1265	redo if s{/\.?/}{/};	2029	redo if s{/\.?/}{/};
1266	redo if s{/[^/]+/\.\./}{/};	2030	redo if s{/[^/]+/\.\./}{/};
1267	}	2031	}
1268		2032
1269	$path	2033	$path
…		…
1283	$self->init; # pass $1 etc.	2047	$self->init; # pass $1 etc.
1284	return $self;	2048	return $self;
1285	}	2049	}
1286	}	2050	}
1287		2051
1288	Carp::carp "unable to resolve path '$path' (base '$base').";	2052	Carp::cluck "unable to resolve path '$path' (base '$base')";
1289	()	2053	()
1290	}	2054	}
1291		2055
		2056	# may re-bless or do other evil things
1292	sub init {	2057	sub init {
1293	my ($self) = @_;	2058	my ($self) = @_;
1294		2059
1295	$self	2060	$self
1296	}	2061	}
…		…
1308		2073
1309	# the original (read-only) location	2074	# the original (read-only) location
1310	sub load_path {	2075	sub load_path {
1311	my ($self) = @_;	2076	my ($self) = @_;
1312		2077
1313	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2078	"$MAPDIR/$self->{path}.map"
1314	}	2079	}
1315		2080
1316	# the temporary/swap location	2081	# the temporary/swap location
1317	sub save_path {	2082	sub save_path {
1318	my ($self) = @_;	2083	my ($self) = @_;
1319		2084
1320	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2085	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1321	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2086	"$TMPDIR/$path.map"
1322	}	2087	}
1323		2088
1324	# the unique path, undef == no special unique path	2089	# the unique path, undef == no special unique path
1325	sub uniq_path {	2090	sub uniq_path {
1326	my ($self) = @_;	2091	my ($self) = @_;
1327		2092
1328	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2093	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1329	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2094	"$UNIQUEDIR/$path"
1330	}	2095	}
1331		2096
1332	# and all this just because we cannot iterate over	2097	sub decay_objects {
1333	# all maps in C++...
1334	sub change_all_map_light {
1335	my ($change) = @_;	2098	my ($self) = @_;
1336		2099
1337	$_->change_map_light ($change)	2100	return if $self->{deny_reset};
1338	for grep $_->outdoor, values %cf::MAP;	2101
		2102	$self->do_decay_objects;
1339	}	2103	}
1340		2104
1341	sub unlink_save {	2105	sub unlink_save {
1342	my ($self) = @_;	2106	my ($self) = @_;
1343		2107
…		…
1348		2112
1349	sub load_header_from($) {	2113	sub load_header_from($) {
1350	my ($self, $path) = @_;	2114	my ($self, $path) = @_;
1351		2115
1352	utf8::encode $path;	2116	utf8::encode $path;
1353	#aio_open $path, O_RDONLY, 0	2117	my $f = new_from_file cf::object::thawer $path
1354	# or return;
1355
1356	$self->_load_header ($path)
1357	or return;	2118	or return;
1358		2119
		2120	$self->_load_header ($f)
		2121	or return;
		2122
		2123	local $MAP_LOADING{$self->{path}} = $self;
		2124	$f->resolve_delayed_derefs;
		2125
1359	$self->{load_path} = $path;	2126	$self->{load_path} = $path;
1360		2127
1361	1	2128	1
1362	}	2129	}
1363		2130
		2131	# used to laod the header of an original map
1364	sub load_header_orig {	2132	sub load_header_orig {
1365	my ($self) = @_;	2133	my ($self) = @_;
1366		2134
1367	$self->load_header_from ($self->load_path)	2135	$self->load_header_from ($self->load_path)
1368	}	2136	}
1369		2137
		2138	# used to laod the header of an instantiated map
1370	sub load_header_temp {	2139	sub load_header_temp {
1371	my ($self) = @_;	2140	my ($self) = @_;
1372		2141
1373	$self->load_header_from ($self->save_path)	2142	$self->load_header_from ($self->save_path)
1374	}	2143	}
1375		2144
		2145	# called after loading the header from an instantiated map
1376	sub prepare_temp {	2146	sub prepare_temp {
1377	my ($self) = @_;	2147	my ($self) = @_;
1378		2148
1379	$self->last_access ((delete $self->{last_access})	2149	$self->last_access ((delete $self->{last_access})
1380	|| $cf::RUNTIME); #d#	2150	|| $cf::RUNTIME); #d#
1381	# safety	2151	# safety
1382	$self->{instantiate_time} = $cf::RUNTIME	2152	$self->{instantiate_time} = $cf::RUNTIME
1383	if $self->{instantiate_time} > $cf::RUNTIME;	2153	if $self->{instantiate_time} > $cf::RUNTIME;
1384	}	2154	}
1385		2155
		2156	# called after loading the header from an original map
1386	sub prepare_orig {	2157	sub prepare_orig {
1387	my ($self) = @_;	2158	my ($self) = @_;
1388		2159
1389	$self->{load_original} = 1;	2160	$self->{load_original} = 1;
1390	$self->{instantiate_time} = $cf::RUNTIME;	2161	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1401	$self->load_header_orig	2172	$self->load_header_orig
1402	or return;	2173	or return;
1403	$self->prepare_orig;	2174	$self->prepare_orig;
1404	}	2175	}
1405		2176
		2177	$self->{deny_reset} = 1
		2178	if $self->no_reset;
		2179
		2180	$self->default_region (cf::region::find_by_path $self->{path})
		2181	unless $self->default_region;
		2182
1406	1	2183	1
1407	}	2184	}
1408		2185
1409	sub find;	2186	sub find;
1410	sub find {	2187	sub find {
1411	my ($path, $origin) = @_;	2188	my ($path, $origin) = @_;
1412		2189
		2190	cf::cede_to_tick;
		2191
1413	$path = normalise $path, $origin && $origin->path;	2192	$path = normalise $path, $origin;
1414		2193
		2194	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1415	cf::lock_wait "map_find:$path";	2195	my $guard2 = cf::lock_acquire "map_find:$path";
1416		2196
1417	$cf::MAP{$path} || do {	2197	$cf::MAP{$path} || do {
1418	my $guard = cf::lock_acquire "map_find:$path";
1419	my $map = new_from_path cf::map $path	2198	my $map = new_from_path cf::map $path
1420	or return;	2199	or return;
1421		2200
1422	$map->{last_save} = $cf::RUNTIME;	2201	$map->{last_save} = $cf::RUNTIME;
1423		2202
1424	$map->load_header	2203	$map->load_header
1425	or return;	2204	or return;
1426		2205
1427	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2206	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1428	# doing this can freeze the server in a sync job, obviously	2207	# doing this can freeze the server in a sync job, obviously
1429	#$cf::WAIT_FOR_TICK->wait;	2208	#$cf::WAIT_FOR_TICK->wait;
		2209	undef $guard2;
		2210	undef $guard1;
1430	$map->reset;	2211	$map->reset;
1431	undef $guard;
1432	return find $path;	2212	return find $path;
1433	}	2213	}
1434		2214
1435	$cf::MAP{$path} = $map	2215	$cf::MAP{$path} = $map
1436	}	2216	}
1437	}	2217	}
1438		2218
1439	sub pre_load { }	2219	sub pre_load { }
1440	sub post_load { }	2220	#sub post_load { } # XS
1441		2221
1442	sub load {	2222	sub load {
1443	my ($self) = @_;	2223	my ($self) = @_;
1444		2224
1445	local $self->{deny_reset} = 1; # loading can take a long time	2225	local $self->{deny_reset} = 1; # loading can take a long time
1446		2226
1447	my $path = $self->{path};	2227	my $path = $self->{path};
		2228
		2229	{
1448	my $guard = cf::lock_acquire "map_load:$path";	2230	my $guard = cf::lock_acquire "map_data:$path";
1449		2231
1450	return if $self->in_memory != cf::MAP_SWAPPED;	2232	return unless $self->valid;
		2233	return unless $self->state == cf::MAP_SWAPPED;
1451		2234
1452	$self->in_memory (cf::MAP_LOADING);
1453
1454	$self->alloc;	2235	$self->alloc;
1455		2236
1456	$self->pre_load;	2237	$self->pre_load;
		2238	cf::cede_to_tick;
1457		2239
1458	$self->_load_objects ($self->{load_path}, 1)	2240	if (exists $self->{load_path}) {
		2241	my $f = new_from_file cf::object::thawer $self->{load_path};
		2242	$f->skip_block;
		2243	$self->_load_objects ($f)
1459	or return;	2244	or return;
1460		2245
1461	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2246	$self->post_load_original
1462	if delete $self->{load_original};	2247	if delete $self->{load_original};
1463		2248
1464	if (my $uniq = $self->uniq_path) {	2249	if (my $uniq = $self->uniq_path) {
1465	utf8::encode $uniq;	2250	utf8::encode $uniq;
1466	if (aio_open $uniq, O_RDONLY, 0) {	2251	unless (aio_stat $uniq) {
		2252	if (my $f = new_from_file cf::object::thawer $uniq) {
1467	$self->clear_unique_items;	2253	$self->clear_unique_items;
1468	$self->_load_objects ($uniq, 0);	2254	$self->_load_objects ($f);
		2255	$f->resolve_delayed_derefs;
		2256	}
		2257	}
1469	}	2258	}
1470	}
1471		2259
1472	Coro::cede;	2260	$f->resolve_delayed_derefs;
		2261	} else {
		2262	$self->post_load_original
		2263	if delete $self->{load_original};
		2264	}
1473		2265
		2266	$self->state (cf::MAP_INACTIVE);
		2267
		2268	cf::cede_to_tick;
1474	# now do the right thing for maps	2269	# now do the right thing for maps
1475	$self->link_multipart_objects;	2270	$self->link_multipart_objects;
1476
1477	unless ($self->{deny_activate}) {
1478	$self->decay_objects;
1479	$self->fix_auto_apply;
1480	$self->update_buttons;
1481	Coro::cede;
1482	$self->set_darkness_map;
1483	$self->difficulty ($self->estimate_difficulty)	2271	$self->difficulty ($self->estimate_difficulty)
1484	unless $self->difficulty;	2272	unless $self->difficulty;
1485	Coro::cede;	2273	cf::cede_to_tick;
1486	$self->activate;	2274
		2275	unless ($self->{deny_activate}) {
		2276	$self->decay_objects;
		2277	$self->fix_auto_apply;
		2278	$self->update_buttons;
		2279	cf::cede_to_tick;
		2280	#$self->activate; # no longer activate maps automatically
		2281	}
		2282
		2283	$self->{last_save} = $cf::RUNTIME;
		2284	$self->last_access ($cf::RUNTIME);
1487	}	2285	}
1488		2286
1489	$self->post_load;	2287	$self->post_load;
1490		2288
1491	$self->in_memory (cf::MAP_IN_MEMORY);	2289	1
1492	}	2290	}
1493		2291
		2292	# customize the map for a given player, i.e.
		2293	# return the _real_ map. used by e.g. per-player
		2294	# maps to change the path to ~playername/mappath
1494	sub customise_for {	2295	sub customise_for {
1495	my ($self, $ob) = @_;	2296	my ($self, $ob) = @_;
1496		2297
1497	return find "~" . $ob->name . "/" . $self->{path}	2298	return find "~" . $ob->name . "/" . $self->{path}
1498	if $self->per_player;	2299	if $self->per_player;
1499		2300
		2301	# return find "?party/" . $ob->name . "/" . $self->{path}
		2302	# if $self->per_party;
		2303
1500	$self	2304	$self
1501	}
1502
1503	# find and load all maps in the 3x3 area around a map
1504	sub load_diag {
1505	my ($map) = @_;
1506
1507	my @diag; # diagonal neighbours
1508
1509	for (0 .. 3) {
1510	my $neigh = $map->tile_path ($_)
1511	or next;
1512	$neigh = find $neigh, $map
1513	or next;
1514	$neigh->load;
1515
1516	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1517	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1518	}
1519
1520	for (@diag) {
1521	my $neigh = find @$_
1522	or next;
1523	$neigh->load;
1524	}
1525	}	2305	}
1526		2306
1527	sub find_sync {	2307	sub find_sync {
1528	my ($path, $origin) = @_;	2308	my ($path, $origin) = @_;
1529		2309
1530	cf::sync_job { find $path, $origin }	2310	# it's a bug to call this from the main context
		2311	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2312	if $Coro::current == $Coro::main;
		2313
		2314	find $path, $origin
1531	}	2315	}
1532		2316
1533	sub do_load_sync {	2317	sub do_load_sync {
1534	my ($map) = @_;	2318	my ($map) = @_;
1535		2319
1536	cf::sync_job { $map->load };	2320	# it's a bug to call this from the main context
		2321	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2322	if $Coro::current == $Coro::main;
		2323
		2324	$map->load;
1537	}	2325	}
1538		2326
1539	our %MAP_PREFETCH;	2327	our %MAP_PREFETCH;
1540	our $MAP_PREFETCHER = undef;	2328	our $MAP_PREFETCHER = undef;
1541		2329
1542	sub find_async {	2330	sub find_async {
1543	my ($path, $origin) = @_;	2331	my ($path, $origin, $load) = @_;
1544		2332
1545	$path = normalise $path, $origin && $origin->{path};	2333	$path = normalise $path, $origin;
1546		2334
1547	if (my $map = $cf::MAP{$path}) {	2335	if (my $map = $cf::MAP{$path}) {
1548	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2336	return $map if !$load || $map->linkable;
1549	}	2337	}
1550		2338
1551	undef $MAP_PREFETCH{$path};	2339	$MAP_PREFETCH{$path} |= $load;
		2340
1552	$MAP_PREFETCHER ||= cf::async {	2341	$MAP_PREFETCHER ||= cf::async {
		2342	$Coro::current->{desc} = "map prefetcher";
		2343
1553	while (%MAP_PREFETCH) {	2344	while (%MAP_PREFETCH) {
1554	for my $path (keys %MAP_PREFETCH) {	2345	while (my ($k, $v) = each %MAP_PREFETCH) {
1555	my $map = find $path	2346	if (my $map = find $k) {
1556	or next;
1557	$map->load;	2347	$map->load if $v;
		2348	}
1558		2349
1559	delete $MAP_PREFETCH{$path};	2350	delete $MAP_PREFETCH{$k};
1560	}	2351	}
1561	}	2352	}
1562	undef $MAP_PREFETCHER;	2353	undef $MAP_PREFETCHER;
1563	};	2354	};
1564	$MAP_PREFETCHER->prio (6);	2355	$MAP_PREFETCHER->prio (6);
1565		2356
1566	()	2357	()
1567	}	2358	}
1568		2359
		2360	# common code, used by both ->save and ->swapout
1569	sub save {	2361	sub _save {
1570	my ($self) = @_;	2362	my ($self) = @_;
1571
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;
1573		2363
1574	$self->{last_save} = $cf::RUNTIME;	2364	$self->{last_save} = $cf::RUNTIME;
1575		2365
1576	return unless $self->dirty;	2366	return unless $self->dirty;
1577		2367
…		…
1583	return if $self->{deny_save};	2373	return if $self->{deny_save};
1584		2374
1585	local $self->{last_access} = $self->last_access;#d#	2375	local $self->{last_access} = $self->last_access;#d#
1586		2376
1587	cf::async {	2377	cf::async {
		2378	$Coro::current->{desc} = "map player save";
1588	$_->contr->save for $self->players;	2379	$_->contr->save for $self->players;
1589	};	2380	};
		2381
		2382	cf::get_slot 0.02;
1590		2383
1591	if ($uniq) {	2384	if ($uniq) {
1592	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2385	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1593	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2386	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1594	} else {	2387	} else {
1595	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2388	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1596	}	2389	}
1597	}	2390	}
1598		2391
		2392	sub save {
		2393	my ($self) = @_;
		2394
		2395	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2396
		2397	$self->_save;
		2398	}
		2399
1599	sub swap_out {	2400	sub swap_out {
1600	my ($self) = @_;	2401	my ($self) = @_;
1601		2402
1602	# save first because save cedes
1603	$self->save;
1604
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2403	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2404
		2405	return if !$self->linkable;
		2406	return if $self->{deny_save};
1607	return if $self->players;	2407	return if $self->players;
1608	return if $self->in_memory != cf::MAP_IN_MEMORY;
1609	return if $self->{deny_save};
1610		2408
		2409	# first deactivate the map and "unlink" it from the core
		2410	$self->deactivate;
		2411	$_->clear_links_to ($self) for values %cf::MAP;
		2412	$self->state (cf::MAP_SWAPPED);
		2413
		2414	# then atomically save
		2415	$self->_save;
		2416
		2417	# then free the map
1611	$self->clear;	2418	$self->clear;
1612	$self->in_memory (cf::MAP_SWAPPED);
1613	}	2419	}
1614		2420
1615	sub reset_at {	2421	sub reset_at {
1616	my ($self) = @_;	2422	my ($self) = @_;
1617		2423
1618	# TODO: safety, remove and allow resettable per-player maps	2424	# TODO: safety, remove and allow resettable per-player maps
1619	return 1e99 if $self->isa ("ext::map_per_player");#d#
1620	return 1e99 if $self->{deny_reset};	2425	return 1e99 if $self->{deny_reset};
1621		2426
1622	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2427	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1623	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2428	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1624		2429
…		…
1635	my ($self) = @_;	2440	my ($self) = @_;
1636		2441
1637	my $lock = cf::lock_acquire "map_data:$self->{path}";	2442	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2443
1639	return if $self->players;	2444	return if $self->players;
1640	return if $self->isa ("ext::map_per_player");#d#
1641		2445
1642	warn "resetting map ", $self->path;#d#	2446	cf::trace "resetting map ", $self->path, "\n";
1643		2447
1644	$self->in_memory (cf::MAP_SWAPPED);	2448	$self->state (cf::MAP_SWAPPED);
1645		2449
1646	# need to save uniques path	2450	# need to save uniques path
1647	unless ($self->{deny_save}) {	2451	unless ($self->{deny_save}) {
1648	my $uniq = $self->uniq_path; utf8::encode $uniq;	2452	my $uniq = $self->uniq_path; utf8::encode $uniq;
1649		2453
…		…
1651	if $uniq;	2455	if $uniq;
1652	}	2456	}
1653		2457
1654	delete $cf::MAP{$self->path};	2458	delete $cf::MAP{$self->path};
1655		2459
		2460	$self->deactivate;
		2461	$_->clear_links_to ($self) for values %cf::MAP;
1656	$self->clear;	2462	$self->clear;
1657
1658	$_->clear_links_to ($self) for values %cf::MAP;
1659		2463
1660	$self->unlink_save;	2464	$self->unlink_save;
1661	$self->destroy;	2465	$self->destroy;
1662	}	2466	}
1663		2467
1664	my $nuke_counter = "aaaa";	2468	my $nuke_counter = "aaaa";
1665		2469
1666	sub nuke {	2470	sub nuke {
1667	my ($self) = @_;	2471	my ($self) = @_;
1668		2472
		2473	{
		2474	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2475
1669	delete $cf::MAP{$self->path};	2476	delete $cf::MAP{$self->path};
1670		2477
1671	$self->unlink_save;	2478	$self->unlink_save;
1672		2479
1673	bless $self, "cf::map";	2480	bless $self, "cf::map::wrap";
1674	delete $self->{deny_reset};	2481	delete $self->{deny_reset};
1675	$self->{deny_save} = 1;	2482	$self->{deny_save} = 1;
1676	$self->reset_timeout (1);	2483	$self->reset_timeout (1);
1677	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2484	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1678		2485
1679	$cf::MAP{$self->path} = $self;	2486	$cf::MAP{$self->path} = $self;
		2487	}
1680		2488
1681	$self->reset; # polite request, might not happen	2489	$self->reset; # polite request, might not happen
		2490	}
		2491
		2492	=item $maps = cf::map::tmp_maps
		2493
		2494	Returns an arrayref with all map paths of currently instantiated and saved
		2495	maps. May block.
		2496
		2497	=cut
		2498
		2499	sub tmp_maps() {
		2500	[
		2501	map {
		2502	utf8::decode $_;
		2503	/\.map$/
		2504	? normalise $_
		2505	: ()
		2506	} @{ aio_readdir $TMPDIR or [] }
		2507	]
		2508	}
		2509
		2510	=item $maps = cf::map::random_maps
		2511
		2512	Returns an arrayref with all map paths of currently instantiated and saved
		2513	random maps. May block.
		2514
		2515	=cut
		2516
		2517	sub random_maps() {
		2518	[
		2519	map {
		2520	utf8::decode $_;
		2521	/\.map$/
		2522	? normalise "?random/$_"
		2523	: ()
		2524	} @{ aio_readdir $RANDOMDIR or [] }
		2525	]
1682	}	2526	}
1683		2527
1684	=item cf::map::unique_maps	2528	=item cf::map::unique_maps
1685		2529
1686	Returns an arrayref of paths of all shared maps that have	2530	Returns an arrayref of paths of all shared maps that have
1687	instantiated unique items. May block.	2531	instantiated unique items. May block.
1688		2532
1689	=cut	2533	=cut
1690		2534
1691	sub unique_maps() {	2535	sub unique_maps() {
1692	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2536	[
1693	or return;	2537	map {
1694
1695	my @paths;
1696
1697	for (@$files) {
1698	utf8::decode $_;	2538	utf8::decode $_;
1699	next if /\.pst$/;	2539	s/\.map$//; # TODO future compatibility hack
1700	next unless /^$PATH_SEP/o;	2540	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1701		2541	? ()
1702	push @paths, cf::map::normalise $_;	2542	: normalise $_
		2543	} @{ aio_readdir $UNIQUEDIR or [] }
1703	}	2544	]
1704
1705	\@paths
1706	}	2545	}
1707		2546
1708	package cf;	2547	=item cf::map::static_maps
		2548
		2549	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2550	file in the shared directory excluding F</styles> and F</editor>). May
		2551	block.
		2552
		2553	=cut
		2554
		2555	sub static_maps() {
		2556	my @dirs = "";
		2557	my @maps;
		2558
		2559	while (@dirs) {
		2560	my $dir = shift @dirs;
		2561
		2562	next if $dir eq "/styles" || $dir eq "/editor";
		2563
		2564	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2565	or return;
		2566
		2567	for (@$files) {
		2568	s/\.map$// or next;
		2569	utf8::decode $_;
		2570	push @maps, "$dir/$_";
		2571	}
		2572
		2573	push @dirs, map "$dir/$_", @$dirs;
		2574	}
		2575
		2576	\@maps
		2577	}
1709		2578
1710	=back	2579	=back
1711		2580
1712	=head3 cf::object	2581	=head3 cf::object
1713		2582
…		…
1717		2586
1718	=over 4	2587	=over 4
1719		2588
1720	=item $ob->inv_recursive	2589	=item $ob->inv_recursive
1721		2590
1722	Returns the inventory of the object _and_ their inventories, recursively.	2591	Returns the inventory of the object I<and> their inventories, recursively,
		2592	but I<not> the object itself.
1723		2593
1724	=cut	2594	=cut
1725		2595
1726	sub inv_recursive_;	2596	sub inv_recursive_;
1727	sub inv_recursive_ {	2597	sub inv_recursive_ {
…		…
1730		2600
1731	sub inv_recursive {	2601	sub inv_recursive {
1732	inv_recursive_ inv $_[0]	2602	inv_recursive_ inv $_[0]
1733	}	2603	}
1734		2604
		2605	=item $ref = $ob->ref
		2606
		2607	Creates and returns a persistent reference to an object that can be stored as a string.
		2608
		2609	=item $ob = cf::object::deref ($refstring)
		2610
		2611	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2612	even if the object actually exists. May block.
		2613
		2614	=cut
		2615
		2616	sub deref {
		2617	my ($ref) = @_;
		2618
		2619	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2620	my ($uuid, $name) = ($1, $2);
		2621	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2622	or return;
		2623	$pl->ob->uuid eq $uuid
		2624	or return;
		2625
		2626	$pl->ob
		2627	} else {
		2628	warn "$ref: cannot resolve object reference\n";
		2629	undef
		2630	}
		2631	}
		2632
1735	package cf;	2633	package cf;
1736		2634
1737	=back	2635	=back
1738		2636
1739	=head3 cf::object::player	2637	=head3 cf::object::player
…		…
1745	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2643	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1746	can be C<undef>. Does the right thing when the player is currently in a	2644	can be C<undef>. Does the right thing when the player is currently in a
1747	dialogue with the given NPC character.	2645	dialogue with the given NPC character.
1748		2646
1749	=cut	2647	=cut
		2648
		2649	our $SAY_CHANNEL = {
		2650	id => "say",
		2651	title => "Map",
		2652	reply => "say ",
		2653	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2654	};
		2655
		2656	our $CHAT_CHANNEL = {
		2657	id => "chat",
		2658	title => "Chat",
		2659	reply => "chat ",
		2660	tooltip => "Player chat and shouts, global to the server.",
		2661	};
1750		2662
1751	# rough implementation of a future "reply" method that works	2663	# rough implementation of a future "reply" method that works
1752	# with dialog boxes.	2664	# with dialog boxes.
1753	#TODO: the first argument must go, split into a $npc->reply_to ( method	2665	#TODO: the first argument must go, split into a $npc->reply_to ( method
1754	sub cf::object::player::reply($$$;$) {	2666	sub cf::object::player::reply($$$;$) {
…		…
1756		2668
1757	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2669	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1758		2670
1759	if ($self->{record_replies}) {	2671	if ($self->{record_replies}) {
1760	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2672	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2673
1761	} else {	2674	} else {
		2675	my $pl = $self->contr;
		2676
		2677	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2678	my $dialog = $pl->{npc_dialog};
		2679	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2680
		2681	} else {
1762	$msg = $npc->name . " says: $msg" if $npc;	2682	$msg = $npc->name . " says: $msg" if $npc;
1763	$self->message ($msg, $flags);	2683	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2684	}
1764	}	2685	}
		2686	}
		2687
		2688	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2689
		2690	=cut
		2691
		2692	sub cf::object::send_msg {
		2693	my $pl = shift->contr
		2694	or return;
		2695	$pl->send_msg (@_);
1765	}	2696	}
1766		2697
1767	=item $player_object->may ("access")	2698	=item $player_object->may ("access")
1768		2699
1769	Returns wether the given player is authorized to access resource "access"	2700	Returns wether the given player is authorized to access resource "access"
…		…
1782		2713
1783	=item $player_object->enter_link	2714	=item $player_object->enter_link
1784		2715
1785	Freezes the player and moves him/her to a special map (C<{link}>).	2716	Freezes the player and moves him/her to a special map (C<{link}>).
1786		2717
1787	The player should be reasonably safe there for short amounts of time. You	2718	The player should be reasonably safe there for short amounts of time (e.g.
1788	I<MUST> call C<leave_link> as soon as possible, though.	2719	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2720	though, as the player cannot control the character while it is on the link
		2721	map.
1789		2722
1790	Will never block.	2723	Will never block.
1791		2724
1792	=item $player_object->leave_link ($map, $x, $y)	2725	=item $player_object->leave_link ($map, $x, $y)
1793		2726
…		…
1813	sub cf::object::player::enter_link {	2746	sub cf::object::player::enter_link {
1814	my ($self) = @_;	2747	my ($self) = @_;
1815		2748
1816	$self->deactivate_recursive;	2749	$self->deactivate_recursive;
1817		2750
		2751	++$self->{_link_recursion};
		2752
1818	return if UNIVERSAL::isa $self->map, "ext::map_link";	2753	return if UNIVERSAL::isa $self->map, "ext::map_link";
1819		2754
1820	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2755	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1821	if $self->map;	2756	if $self->map && $self->map->{path} ne "{link}";
1822		2757
1823	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2758	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1824	}	2759	}
1825		2760
1826	sub cf::object::player::leave_link {	2761	sub cf::object::player::leave_link {
1827	my ($self, $map, $x, $y) = @_;	2762	my ($self, $map, $x, $y) = @_;
		2763
		2764	return unless $self->contr->active;
1828		2765
1829	my $link_pos = delete $self->{_link_pos};	2766	my $link_pos = delete $self->{_link_pos};
1830		2767
1831	unless ($map) {	2768	unless ($map) {
1832	# restore original map position	2769	# restore original map position
…		…
1843	($x, $y) = (-1, -1)	2780	($x, $y) = (-1, -1)
1844	unless (defined $x) && (defined $y);	2781	unless (defined $x) && (defined $y);
1845		2782
1846	# use -1 or undef as default coordinates, not 0, 0	2783	# use -1 or undef as default coordinates, not 0, 0
1847	($x, $y) = ($map->enter_x, $map->enter_y)	2784	($x, $y) = ($map->enter_x, $map->enter_y)
1848	if $x <=0 && $y <= 0;	2785	if $x <= 0 && $y <= 0;
1849		2786
1850	$map->load;	2787	$map->load;
1851	$map->load_diag;
1852		2788
1853	return unless $self->contr->active;	2789	return unless $self->contr->active;
1854	$self->activate_recursive;
1855		2790
1856	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2791	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1857	$self->enter_map ($map, $x, $y);	2792	if ($self->enter_map ($map, $x, $y)) {
1858	}	2793	# entering was successful
1859		2794	delete $self->{_link_recursion};
1860	cf::player->attach (	2795	# only activate afterwards, to support waiting in hooks
1861	on_logout => sub {	2796	$self->activate_recursive;
1862	my ($pl) = @_;
1863
1864	# abort map switching before logout
1865	if ($pl->ob->{_link_pos}) {
1866	cf::sync_job {
1867	$pl->ob->leave_link
1868	};
1869	}
1870	},	2797	}
1871	on_login => sub {
1872	my ($pl) = @_;
1873		2798
1874	# try to abort aborted map switching on player login :)	2799	}
1875	# should happen only on crashes
1876	if ($pl->ob->{_link_pos}) {
1877	$pl->ob->enter_link;
1878	(async {
1879	$pl->ob->reply (undef,
1880	"There was an internal problem at your last logout, "
1881	. "the server will try to bring you to your intended destination in a second.",
1882	cf::NDI_RED);
1883	# we need this sleep as the login has a concurrent enter_exit running
1884	# and this sleep increases chances of the player not ending up in scorn
1885	Coro::Timer::sleep 1;
1886	$pl->ob->leave_link;
1887	})->prio (2);
1888	}
1889	},
1890	);
1891		2800
1892	=item $player_object->goto ($path, $x, $y)	2801	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1893		2802
		2803	Moves the player to the given map-path and coordinates by first freezing
		2804	her, loading and preparing them map, calling the provided $check callback
		2805	that has to return the map if sucecssful, and then unfreezes the player on
		2806	the new (success) or old (failed) map position. In either case, $done will
		2807	be called at the end of this process.
		2808
		2809	Note that $check will be called with a potentially non-loaded map, so if
		2810	it needs a loaded map it has to call C<< ->load >>.
		2811
1894	=cut	2812	=cut
		2813
		2814	our $GOTOGEN;
1895		2815
1896	sub cf::object::player::goto {	2816	sub cf::object::player::goto {
1897	my ($self, $path, $x, $y) = @_;	2817	my ($self, $path, $x, $y, $check, $done) = @_;
		2818
		2819	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2820	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2821	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2822	($path, $x, $y) = @$EMERGENCY_POSITION;
		2823	}
		2824
		2825	# do generation counting so two concurrent goto's will be executed in-order
		2826	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1898		2827
1899	$self->enter_link;	2828	$self->enter_link;
1900		2829
1901	(async {	2830	(async {
		2831	$Coro::current->{desc} = "player::goto $path $x $y";
		2832
		2833	# *tag paths override both path and x|y
		2834	if ($path =~ /^\*(.*)$/) {
		2835	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2836	my $ob = $obs[rand @obs];
		2837
		2838	# see if we actually can go there
		2839	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2840	$ob = $obs[rand @obs];
		2841	} else {
		2842	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2843	}
		2844	# else put us there anyways for now #d#
		2845
		2846	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2847	} else {
		2848	($path, $x, $y) = (undef, undef, undef);
		2849	}
		2850	}
		2851
1902	my $map = eval {	2852	my $map = eval {
1903	my $map = cf::map::find $path;	2853	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2854
		2855	if ($map) {
1904	$map = $map->customise_for ($self) if $map;	2856	$map = $map->customise_for ($self);
		2857	$map = $check->($map, $x, $y, $self) if $check && $map;
		2858	} else {
		2859	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2860	}
		2861
1905	$map	2862	$map
		2863	};
		2864
		2865	if ($@) {
		2866	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2867	LOG llevError | logBacktrace, Carp::longmess $@;
1906	} or	2868	}
1907	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1908		2869
		2870	if ($gen == $self->{_goto_generation}) {
		2871	delete $self->{_goto_generation};
1909	$self->leave_link ($map, $x, $y);	2872	$self->leave_link ($map, $x, $y);
		2873	}
		2874
		2875	$done->($self) if $done;
1910	})->prio (1);	2876	})->prio (1);
1911	}	2877	}
1912		2878
1913	=item $player_object->enter_exit ($exit_object)	2879	=item $player_object->enter_exit ($exit_object)
1914		2880
…		…
1934	}	2900	}
1935		2901
1936	sub prepare_random_map {	2902	sub prepare_random_map {
1937	my ($exit) = @_;	2903	my ($exit) = @_;
1938		2904
1939	my $guard = cf::lock_acquire "exit_prepare:$exit";
1940
1941	# all this does is basically replace the /! path by	2905	# all this does is basically replace the /! path by
1942	# a new random map path (?random/...) with a seed	2906	# a new random map path (?random/...) with a seed
1943	# that depends on the exit object	2907	# that depends on the exit object
1944		2908
1945	my $rmp = parse_random_map_params $exit->msg;	2909	my $rmp = parse_random_map_params $exit->msg;
…		…
1947	if ($exit->map) {	2911	if ($exit->map) {
1948	$rmp->{region} = $exit->region->name;	2912	$rmp->{region} = $exit->region->name;
1949	$rmp->{origin_map} = $exit->map->path;	2913	$rmp->{origin_map} = $exit->map->path;
1950	$rmp->{origin_x} = $exit->x;	2914	$rmp->{origin_x} = $exit->x;
1951	$rmp->{origin_y} = $exit->y;	2915	$rmp->{origin_y} = $exit->y;
		2916
		2917	$exit->map->touch;
1952	}	2918	}
1953		2919
1954	$rmp->{random_seed} ||= $exit->random_seed;	2920	$rmp->{random_seed} ||= $exit->random_seed;
1955		2921
1956	my $data = cf::to_json $rmp;	2922	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1957	my $md5 = Digest::MD5::md5_hex $data;	2923	my $md5 = Digest::MD5::md5_hex $data;
1958	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2924	my $meta = "$RANDOMDIR/$md5.meta";
1959		2925
1960	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2926	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1961	aio_write $fh, 0, (length $data), $data, 0;	2927	aio_write $fh, 0, (length $data), $data, 0;
1962	undef $fh;	2928	undef $fh;
1963	aio_rename "$meta~", $meta;	2929	aio_rename "$meta~", $meta;
1964		2930
		2931	my $slaying = "?random/$md5";
		2932
		2933	if ($exit->valid) {
1965	$exit->slaying ("?random/$md5");	2934	$exit->slaying ("?random/$md5");
1966	$exit->msg (undef);	2935	$exit->msg (undef);
		2936	}
1967	}	2937	}
1968	}	2938	}
1969		2939
1970	sub cf::object::player::enter_exit {	2940	sub cf::object::player::enter_exit {
1971	my ($self, $exit) = @_;	2941	my ($self, $exit) = @_;
1972		2942
1973	return unless $self->type == cf::PLAYER;	2943	return unless $self->type == cf::PLAYER;
1974		2944
1975	if ($exit->slaying eq "/!") {
1976	#TODO: this should de-fi-ni-te-ly not be a sync-job
1977	# the problem is that $exit might not survive long enough
1978	# so it needs to be done right now, right here
1979	cf::sync_job { prepare_random_map $exit };
1980	}
1981
1982	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1983	my $hp = $exit->stats->hp;
1984	my $sp = $exit->stats->sp;
1985
1986	$self->enter_link;	2945	$self->enter_link;
1987		2946
1988	(async {	2947	(async {
1989	$self->deactivate_recursive; # just to be sure	2948	$Coro::current->{desc} = "enter_exit";
		2949
1990	unless (eval {	2950	unless (eval {
		2951	$self->deactivate_recursive; # just to be sure
		2952
		2953	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2954	my $x = $exit->stats->hp;
		2955	my $y = $exit->stats->sp;
		2956
		2957	# special map handling
		2958	my $slaying = $exit->slaying;
		2959
		2960	# special map handling
		2961	if ($slaying eq "/!") {
		2962	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2963
		2964	prepare_random_map $exit
		2965	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2966
		2967	$map = $exit->slaying;
		2968
		2969	} elsif ($slaying eq '!up') {
		2970	$map = $exit->map->tile_path (cf::TILE_UP);
		2971	$x = $exit->x;
		2972	$y = $exit->y;
		2973
		2974	} elsif ($slaying eq '!down') {
		2975	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2976	$x = $exit->x;
		2977	$y = $exit->y;
		2978	}
		2979
1991	$self->goto ($slaying, $hp, $sp);	2980	$self->goto ($map, $x, $y);
1992		2981
		2982	# if exit is damned, update players death & WoR home-position
		2983	$self->contr->savebed ($map, $x, $y)
		2984	if $exit->flag (cf::FLAG_DAMNED);
		2985
1993	1;	2986	1
1994	}) {	2987	}) {
1995	$self->message ("Something went wrong deep within the crossfire server. "	2988	$self->message ("Something went wrong deep within the deliantra server. "
1996	. "I'll try to bring you back to the map you were before. "	2989	. "I'll try to bring you back to the map you were before. "
1997	. "Please report this to the dungeon master!",	2990	. "Please report this to the dungeon master!",
1998	cf::NDI_UNIQUE | cf::NDI_RED);	2991	cf::NDI_UNIQUE | cf::NDI_RED);
1999		2992
2000	warn "ERROR in enter_exit: $@";	2993	error "ERROR in enter_exit: $@";
2001	$self->leave_link;	2994	$self->leave_link;
2002	}	2995	}
2003	})->prio (1);	2996	})->prio (1);
2004	}	2997	}
2005		2998
…		…
2019		3012
2020	utf8::encode $text;	3013	utf8::encode $text;
2021	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3014	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2022	}	3015	}
2023		3016
		3017	=item $client->send_big_packet ($pkt)
		3018
		3019	Like C<send_packet>, but tries to compress large packets, and fragments
		3020	them as required.
		3021
		3022	=cut
		3023
		3024	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3025
		3026	sub cf::client::send_big_packet {
		3027	my ($self, $pkt) = @_;
		3028
		3029	# try lzf for large packets
		3030	$pkt = "lzf " . Compress::LZF::compress $pkt
		3031	if 1024 <= length $pkt and $self->{can_lzf};
		3032
		3033	# split very large packets
		3034	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3035	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3036	$pkt = "frag";
		3037	}
		3038
		3039	$self->send_packet ($pkt);
		3040	}
		3041
		3042	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3043
		3044	Send a drawinfo or msg packet to the client, formatting the msg for the
		3045	client if neccessary. C<$type> should be a string identifying the type of
		3046	the message, with C<log> being the default. If C<$color> is negative, suppress
		3047	the message unless the client supports the msg packet.
		3048
		3049	=cut
		3050
		3051	# non-persistent channels (usually the info channel)
		3052	our %CHANNEL = (
		3053	"c/motd" => {
		3054	id => "infobox",
		3055	title => "MOTD",
		3056	reply => undef,
		3057	tooltip => "The message of the day",
		3058	},
		3059	"c/identify" => {
		3060	id => "infobox",
		3061	title => "Identify",
		3062	reply => undef,
		3063	tooltip => "Items recently identified",
		3064	},
		3065	"c/examine" => {
		3066	id => "infobox",
		3067	title => "Examine",
		3068	reply => undef,
		3069	tooltip => "Signs and other items you examined",
		3070	},
		3071	"c/shopinfo" => {
		3072	id => "infobox",
		3073	title => "Shop Info",
		3074	reply => undef,
		3075	tooltip => "What your bargaining skill tells you about the shop",
		3076	},
		3077	"c/book" => {
		3078	id => "infobox",
		3079	title => "Book",
		3080	reply => undef,
		3081	tooltip => "The contents of a note or book",
		3082	},
		3083	"c/lookat" => {
		3084	id => "infobox",
		3085	title => "Look",
		3086	reply => undef,
		3087	tooltip => "What you saw there",
		3088	},
		3089	"c/who" => {
		3090	id => "infobox",
		3091	title => "Players",
		3092	reply => undef,
		3093	tooltip => "Shows players who are currently online",
		3094	},
		3095	"c/body" => {
		3096	id => "infobox",
		3097	title => "Body Parts",
		3098	reply => undef,
		3099	tooltip => "Shows which body parts you posess and are available",
		3100	},
		3101	"c/statistics" => {
		3102	id => "infobox",
		3103	title => "Statistics",
		3104	reply => undef,
		3105	tooltip => "Shows your primary statistics",
		3106	},
		3107	"c/skills" => {
		3108	id => "infobox",
		3109	title => "Skills",
		3110	reply => undef,
		3111	tooltip => "Shows your experience per skill and item power",
		3112	},
		3113	"c/shopitems" => {
		3114	id => "infobox",
		3115	title => "Shop Items",
		3116	reply => undef,
		3117	tooltip => "Shows the items currently for sale in this shop",
		3118	},
		3119	"c/resistances" => {
		3120	id => "infobox",
		3121	title => "Resistances",
		3122	reply => undef,
		3123	tooltip => "Shows your resistances",
		3124	},
		3125	"c/pets" => {
		3126	id => "infobox",
		3127	title => "Pets",
		3128	reply => undef,
		3129	tooltip => "Shows information abotu your pets/a specific pet",
		3130	},
		3131	"c/perceiveself" => {
		3132	id => "infobox",
		3133	title => "Perceive Self",
		3134	reply => undef,
		3135	tooltip => "You gained detailed knowledge about yourself",
		3136	},
		3137	"c/uptime" => {
		3138	id => "infobox",
		3139	title => "Uptime",
		3140	reply => undef,
		3141	tooltip => "How long the server has been running since last restart",
		3142	},
		3143	"c/mapinfo" => {
		3144	id => "infobox",
		3145	title => "Map Info",
		3146	reply => undef,
		3147	tooltip => "Information related to the maps",
		3148	},
		3149	"c/party" => {
		3150	id => "party",
		3151	title => "Party",
		3152	reply => "gsay ",
		3153	tooltip => "Messages and chat related to your party",
		3154	},
		3155	"c/death" => {
		3156	id => "death",
		3157	title => "Death",
		3158	reply => undef,
		3159	tooltip => "Reason for and more info about your most recent death",
		3160	},
		3161	"c/say" => $SAY_CHANNEL,
		3162	"c/chat" => $CHAT_CHANNEL,
		3163	);
		3164
		3165	sub cf::client::send_msg {
		3166	my ($self, $channel, $msg, $color, @extra) = @_;
		3167
		3168	$msg = $self->pl->expand_cfpod ($msg)
		3169	unless $color & cf::NDI_VERBATIM;
		3170
		3171	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3172
		3173	# check predefined channels, for the benefit of C
		3174	if ($CHANNEL{$channel}) {
		3175	$channel = $CHANNEL{$channel};
		3176
		3177	$self->ext_msg (channel_info => $channel);
		3178	$channel = $channel->{id};
		3179
		3180	} elsif (ref $channel) {
		3181	# send meta info to client, if not yet sent
		3182	unless (exists $self->{channel}{$channel->{id}}) {
		3183	$self->{channel}{$channel->{id}} = $channel;
		3184	$self->ext_msg (channel_info => $channel);
		3185	}
		3186
		3187	$channel = $channel->{id};
		3188	}
		3189
		3190	return unless @extra || length $msg;
		3191
		3192	# default colour, mask it out
		3193	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3194	if $color & cf::NDI_DEF;
		3195
		3196	my $pkt = "msg "
		3197	. $self->{json_coder}->encode (
		3198	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3199	);
		3200
		3201	$self->send_big_packet ($pkt);
		3202	}
		3203
2024	=item $client->ext_event ($type, %msg)	3204	=item $client->ext_msg ($type, @msg)
2025		3205
2026	Sends an exti event to the client.	3206	Sends an ext event to the client.
2027		3207
2028	=cut	3208	=cut
2029		3209
2030	sub cf::client::ext_event($$%) {	3210	sub cf::client::ext_msg($$@) {
2031	my ($self, $type, %msg) = @_;	3211	my ($self, $type, @msg) = @_;
2032		3212
		3213	if ($self->extcmd == 2) {
		3214	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3215	} elsif ($self->extcmd == 1) { # TODO: remove
2033	$msg{msgtype} = "event_$type";	3216	push @msg, msgtype => "event_$type";
2034	$self->send_packet ("ext " . cf::to_json \%msg);	3217	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3218	}
		3219	}
		3220
		3221	=item $client->ext_reply ($msgid, @msg)
		3222
		3223	Sends an ext reply to the client.
		3224
		3225	=cut
		3226
		3227	sub cf::client::ext_reply($$@) {
		3228	my ($self, $id, @msg) = @_;
		3229
		3230	return unless $self->extcmd == 2;
		3231
		3232	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2035	}	3233	}
2036		3234
2037	=item $success = $client->query ($flags, "text", \&cb)	3235	=item $success = $client->query ($flags, "text", \&cb)
2038		3236
2039	Queues a query to the client, calling the given callback with	3237	Queues a query to the client, calling the given callback with
2040	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3238	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2041	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3239	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2042		3240
2043	Queries can fail, so check the return code. Or don't, as queries will become	3241	Queries can fail, so check the return code. Or don't, as queries will
2044	reliable at some point in the future.	3242	become reliable at some point in the future.
2045		3243
2046	=cut	3244	=cut
2047		3245
2048	sub cf::client::query {	3246	sub cf::client::query {
2049	my ($self, $flags, $text, $cb) = @_;	3247	my ($self, $flags, $text, $cb) = @_;
…		…
2057	utf8::encode $text;	3255	utf8::encode $text;
2058	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3256	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2059		3257
2060	$self->send_packet ($self->{query_queue}[0][0])	3258	$self->send_packet ($self->{query_queue}[0][0])
2061	if @{ $self->{query_queue} } == 1;	3259	if @{ $self->{query_queue} } == 1;
		3260
		3261	1
2062	}	3262	}
2063		3263
2064	cf::client->attach (	3264	cf::client->attach (
		3265	on_connect => sub {
		3266	my ($ns) = @_;
		3267
		3268	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3269	},
2065	on_reply => sub {	3270	on_reply => sub {
2066	my ($ns, $msg) = @_;	3271	my ($ns, $msg) = @_;
2067		3272
2068	# this weird shuffling is so that direct followup queries	3273	# this weird shuffling is so that direct followup queries
2069	# get handled first	3274	# get handled first
…		…
2081	} else {	3286	} else {
2082	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3287	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2083	}	3288	}
2084	}	3289	}
2085	},	3290	},
		3291	on_exticmd => sub {
		3292	my ($ns, $buf) = @_;
		3293
		3294	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3295
		3296	if (ref $msg) {
		3297	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3298
		3299	my @reply;
		3300
		3301	if (my $cb = $EXTICMD{$type}) {
		3302	@reply = $cb->($ns, @payload);
		3303	}
		3304
		3305	$ns->ext_reply ($reply, @reply)
		3306	if $reply;
		3307
		3308	} else {
		3309	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3310	}
		3311
		3312	cf::override;
		3313	},
2086	);	3314	);
2087		3315
2088	=item $client->async (\&cb)	3316	=item $client->async (\&cb)
2089		3317
2090	Create a new coroutine, running the specified callback. The coroutine will	3318	Create a new coroutine, running the specified callback. The coroutine will
…		…
2106		3334
2107	$coro	3335	$coro
2108	}	3336	}
2109		3337
2110	cf::client->attach (	3338	cf::client->attach (
2111	on_destroy => sub {	3339	on_client_destroy => sub {
2112	my ($ns) = @_;	3340	my ($ns) = @_;
2113		3341
2114	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3342	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2115	},	3343	},
2116	);	3344	);
…		…
2131	our $safe = new Safe "safe";	3359	our $safe = new Safe "safe";
2132	our $safe_hole = new Safe::Hole;	3360	our $safe_hole = new Safe::Hole;
2133		3361
2134	$SIG{FPE} = 'IGNORE';	3362	$SIG{FPE} = 'IGNORE';
2135		3363
2136	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3364	$safe->permit_only (Opcode::opset qw(
		3365	:base_core :base_mem :base_orig :base_math :base_loop
		3366	grepstart grepwhile mapstart mapwhile
		3367	sort time
		3368	));
2137		3369
2138	# here we export the classes and methods available to script code	3370	# here we export the classes and methods available to script code
2139		3371
2140	=pod	3372	=pod
2141		3373
2142	The following functions and methods are available within a safe environment:	3374	The following functions and methods are available within a safe environment:
2143		3375
2144	cf::object contr pay_amount pay_player map	3376	cf::object
		3377	contr pay_amount pay_player map x y force_find force_add destroy
		3378	insert remove name archname title slaying race decrease split
		3379	value
		3380
2145	cf::object::player player	3381	cf::object::player
2146	cf::player peaceful	3382	player
2147	cf::map trigger	3383
		3384	cf::player
		3385	peaceful
		3386
		3387	cf::map
		3388	trigger
2148		3389
2149	=cut	3390	=cut
2150		3391
2151	for (	3392	for (
2152	["cf::object" => qw(contr pay_amount pay_player map)],	3393	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3394	insert remove inv nrof name archname title slaying race
		3395	decrease split destroy change_exp value msg lore send_msg)],
2153	["cf::object::player" => qw(player)],	3396	["cf::object::player" => qw(player)],
2154	["cf::player" => qw(peaceful)],	3397	["cf::player" => qw(peaceful send_msg)],
2155	["cf::map" => qw(trigger)],	3398	["cf::map" => qw(trigger)],
2156	) {	3399	) {
2157	no strict 'refs';
2158	my ($pkg, @funs) = @$_;	3400	my ($pkg, @funs) = @$_;
2159	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3401	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2160	for @funs;	3402	for @funs;
2161	}	3403	}
2162		3404
…		…
2177		3419
2178	my $qcode = $code;	3420	my $qcode = $code;
2179	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3421	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2180	$qcode =~ s/\n/\\n/g;	3422	$qcode =~ s/\n/\\n/g;
2181		3423
		3424	%vars = (_dummy => 0) unless %vars;
		3425
		3426	my @res;
2182	local $_;	3427	local $_;
2183	local @safe::cf::_safe_eval_args = values %vars;
2184		3428
2185	my $eval =	3429	my $eval =
2186	"do {\n"	3430	"do {\n"
2187	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3431	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2188	. "#line 0 \"{$qcode}\"\n"	3432	. "#line 0 \"{$qcode}\"\n"
2189	. $code	3433	. $code
2190	. "\n}"	3434	. "\n}"
2191	;	3435	;
2192		3436
		3437	if ($CFG{safe_eval}) {
2193	sub_generation_inc;	3438	sub_generation_inc;
		3439	local @safe::cf::_safe_eval_args = values %vars;
2194	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3440	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2195	sub_generation_inc;	3441	sub_generation_inc;
		3442	} else {
		3443	local @cf::_safe_eval_args = values %vars;
		3444	@res = wantarray ? eval eval : scalar eval $eval;
		3445	}
2196		3446
2197	if ($@) {	3447	if ($@) {
2198	warn "$@";	3448	warn "$@",
2199	warn "while executing safe code '$code'\n";	3449	"while executing safe code '$code'\n",
2200	warn "with arguments " . (join " ", %vars) . "\n";	3450	"with arguments " . (join " ", %vars) . "\n";
2201	}	3451	}
2202		3452
2203	wantarray ? @res : $res[0]	3453	wantarray ? @res : $res[0]
2204	}	3454	}
2205		3455
…		…
2219	=cut	3469	=cut
2220		3470
2221	sub register_script_function {	3471	sub register_script_function {
2222	my ($fun, $cb) = @_;	3472	my ($fun, $cb) = @_;
2223		3473
2224	no strict 'refs';	3474	$fun = "safe::$fun" if $CFG{safe_eval};
2225	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3475	*$fun = $safe_hole->wrap ($cb);
2226	}	3476	}
2227		3477
2228	=back	3478	=back
2229		3479
2230	=cut	3480	=cut
2231
2232	#############################################################################
2233
2234	=head2 EXTENSION DATABASE SUPPORT
2235
2236	Crossfire maintains a very simple database for extension use. It can
2237	currently store anything that can be serialised using Storable, which
2238	excludes objects.
2239
2240	The parameter C<$family> should best start with the name of the extension
2241	using it, it should be unique.
2242
2243	=over 4
2244
2245	=item $value = cf::db_get $family => $key
2246
2247	Returns a single value from the database.
2248
2249	=item cf::db_put $family => $key => $value
2250
2251	Stores the given C<$value> in the family.
2252
2253	=cut
2254
2255	our $DB;
2256
2257	sub db_init {
2258	unless ($DB) {
2259	$DB = BDB::db_create $DB_ENV;
2260
2261	cf::sync_job {
2262	eval {
2263	$DB->set_flags (BDB::CHKSUM);
2264
2265	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2266	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2267	cf::cleanup "db_open(db): $!" if $!;
2268	};
2269	cf::cleanup "db_open(db): $@" if $@;
2270	};
2271
2272	my $path = cf::localdir . "/database.pst";
2273	if (stat $path) {
2274	cf::sync_job {
2275	my $pst = Storable::retrieve $path;
2276
2277	cf::db_put (board => data => $pst->{board});
2278	cf::db_put (guildrules => data => $pst->{guildrules});
2279	cf::db_put (rent => balance => $pst->{rent}{balance});
2280	BDB::db_env_txn_checkpoint $DB_ENV;
2281
2282	unlink $path;
2283	};
2284	}
2285	}
2286	}
2287
2288	sub db_get($$) {
2289	my $key = "$_[0]/$_[1]";
2290
2291	cf::sync_job {
2292	BDB::db_get $DB, undef, $key, my $data;
2293
2294	$! ? ()
2295	: Compress::LZF::sthaw $data
2296	}
2297	}
2298
2299	sub db_put($$$) {
2300	BDB::dbreq_pri 4;
2301	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2302	}
2303		3481
2304	#############################################################################	3482	#############################################################################
2305	# the server's init and main functions	3483	# the server's init and main functions
2306		3484
2307	sub load_facedata {	3485	sub load_facedata($) {
2308	my $path = sprintf "%s/facedata", cf::datadir;	3486	my ($path) = @_;
2309		3487
		3488	# HACK to clear player env face cache, we need some signal framework
		3489	# for this (global event?)
		3490	%ext::player_env::MUSIC_FACE_CACHE = ();
		3491
		3492	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3493
2310	warn "loading facedata from $path\n";	3494	trace "loading facedata from $path\n";
2311		3495
2312	my $facedata;	3496	my $facedata = decode_storable load_file $path;
2313	0 < aio_load $path, $facedata
2314	or die "$path: $!";
2315
2316	Coro::cede;
2317	$facedata = Storable::thaw $facedata;
2318	Coro::cede;
2319		3497
2320	$facedata->{version} == 2	3498	$facedata->{version} == 2
2321	or cf::cleanup "$path: version mismatch, cannot proceed.";	3499	or cf::cleanup "$path: version mismatch, cannot proceed.";
2322		3500
		3501	# patch in the exptable
		3502	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3503	$facedata->{resource}{"res/exp_table"} = {
		3504	type => FT_RSRC,
		3505	data => $exp_table,
		3506	hash => (Digest::MD5::md5 $exp_table),
		3507	};
		3508	cf::cede_to_tick;
		3509
2323	{	3510	{
2324	my $faces = $facedata->{faceinfo};	3511	my $faces = $facedata->{faceinfo};
2325		3512
2326	while (my ($face, $info) = each %$faces) {	3513	while (my ($face, $info) = each %$faces) {
2327	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3514	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3515
2328	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3516	cf::face::set_visibility $idx, $info->{visibility};
		3517	cf::face::set_magicmap $idx, $info->{magicmap};
2329	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3518	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2330	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3519	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2331	Coro::cede;	3520	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3521
		3522	cf::cede_to_tick;
2332	}	3523	}
2333		3524
2334	while (my ($face, $info) = each %$faces) {	3525	while (my ($face, $info) = each %$faces) {
2335	next unless $info->{smooth};	3526	next unless $info->{smooth};
		3527
2336	my $idx = cf::face::find $face	3528	my $idx = cf::face::find $face
2337	or next;	3529	or next;
		3530
2338	if (my $smooth = cf::face::find $info->{smooth}) {	3531	if (my $smooth = cf::face::find $info->{smooth}) {
		3532	cf::face::set_smooth $idx, $smooth;
2339	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3533	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2340	} else {	3534	} else {
2341	warn "smooth face '$info->{smooth}' not found for face '$face'";	3535	error "smooth face '$info->{smooth}' not found for face '$face'";
2342	}	3536	}
2343	Coro::cede;	3537
		3538	cf::cede_to_tick;
2344	}	3539	}
2345	}	3540	}
2346		3541
2347	{	3542	{
2348	my $anims = $facedata->{animinfo};	3543	my $anims = $facedata->{animinfo};
2349		3544
2350	while (my ($anim, $info) = each %$anims) {	3545	while (my ($anim, $info) = each %$anims) {
2351	cf::anim::set $anim, $info->{frames}, $info->{facings};	3546	cf::anim::set $anim, $info->{frames}, $info->{facings};
2352	Coro::cede;	3547	cf::cede_to_tick;
2353	}	3548	}
2354		3549
2355	cf::anim::invalidate_all; # d'oh	3550	cf::anim::invalidate_all; # d'oh
2356	}	3551	}
2357		3552
		3553	{
		3554	my $res = $facedata->{resource};
		3555
		3556	while (my ($name, $info) = each %$res) {
		3557	if (defined (my $type = $info->{type})) {
		3558	# TODO: different hash - must free and use new index, or cache ixface data queue
		3559	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3560
		3561	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3562	cf::face::set_type $idx, $type;
		3563	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3564	} else {
		3565	# $RESOURCE{$name} = $info; # unused
		3566	}
		3567
		3568	cf::cede_to_tick;
		3569	}
		3570	}
		3571
		3572	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3573
2358	1	3574	1
2359	}	3575	}
2360		3576
		3577	register_exticmd fx_want => sub {
		3578	my ($ns, $want) = @_;
		3579
		3580	while (my ($k, $v) = each %$want) {
		3581	$ns->fx_want ($k, $v);
		3582	}
		3583	};
		3584
		3585	sub load_resource_file($) {
		3586	my $guard = lock_acquire "load_resource_file";
		3587
		3588	my $status = load_resource_file_ $_[0];
		3589	get_slot 0.1, 100;
		3590	cf::arch::commit_load;
		3591
		3592	$status
		3593	}
		3594
		3595	sub reload_regions {
		3596	# HACK to clear player env face cache, we need some signal framework
		3597	# for this (global event?)
		3598	%ext::player_env::MUSIC_FACE_CACHE = ();
		3599
		3600	load_resource_file "$MAPDIR/regions"
		3601	or die "unable to load regions file\n";
		3602
		3603	for (cf::region::list) {
		3604	$_->{match} = qr/$_->{match}/
		3605	if exists $_->{match};
		3606	}
		3607	}
		3608
		3609	sub reload_facedata {
		3610	load_facedata "$DATADIR/facedata"
		3611	or die "unable to load facedata\n";
		3612	}
		3613
		3614	sub reload_archetypes {
		3615	load_resource_file "$DATADIR/archetypes"
		3616	or die "unable to load archetypes\n";
		3617	}
		3618
		3619	sub reload_treasures {
		3620	load_resource_file "$DATADIR/treasures"
		3621	or die "unable to load treasurelists\n";
		3622	}
		3623
		3624	sub reload_sound {
		3625	trace "loading sound config from $DATADIR/sound\n";
		3626
		3627	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3628
		3629	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3630	my $sound = $soundconf->{compat}[$_]
		3631	or next;
		3632
		3633	my $face = cf::face::find "sound/$sound->[1]";
		3634	cf::sound::set $sound->[0] => $face;
		3635	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3636	}
		3637
		3638	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3639	my $face = cf::face::find "sound/$v";
		3640	cf::sound::set $k => $face;
		3641	}
		3642	}
		3643
2361	sub reload_resources {	3644	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3645	trace "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	3646
		3647	reload_exp_table;
		3648	reload_materials;
2364	load_facedata	3649	reload_facedata;
2365	or die "unable to load facedata\n";#d#	3650	reload_sound;
2366	}	3651	reload_archetypes;
2367
2368	sub init {
2369	reload_resources;	3652	reload_regions;
2370	}	3653	reload_treasures;
2371		3654
2372	sub cfg_load {	3655	trace "finished reloading resource files\n";
2373	open my $fh, "<:utf8", cf::confdir . "/config"	3656	}
2374	or return;
2375		3657
2376	local $/;	3658	sub reload_config {
2377	*CFG = YAML::Syck::Load <$fh>;	3659	trace "reloading config file...\n";
2378		3660
		3661	my $config = load_file "$CONFDIR/config";
		3662	utf8::decode $config;
		3663	*CFG = decode_yaml $config;
		3664
2379	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3665	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2380		3666
2381	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3667	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2382	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3668	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2383		3669
2384	if (exists $CFG{mlockall}) {	3670	if (exists $CFG{mlockall}) {
…		…
2388	};	3674	};
2389	warn $@ if $@;	3675	warn $@ if $@;
2390	}	3676	}
2391	}	3677	}
2392		3678
		3679	sub pidfile() {
		3680	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3681	or die "$PIDFILE: $!";
		3682	flock $fh, &Fcntl::LOCK_EX
		3683	or die "$PIDFILE: flock: $!";
		3684	$fh
		3685	}
		3686
		3687	# make sure only one server instance is running at any one time
		3688	sub atomic {
		3689	my $fh = pidfile;
		3690
		3691	my $pid = <$fh>;
		3692	kill 9, $pid if $pid > 0;
		3693
		3694	seek $fh, 0, 0;
		3695	print $fh $$;
		3696	}
		3697
		3698	sub main_loop {
		3699	trace "EV::loop starting\n";
		3700	if (1) {
		3701	EV::loop;
		3702	}
		3703	trace "EV::loop returned\n";
		3704	goto &main_loop unless $REALLY_UNLOOP;
		3705	}
		3706
2393	sub main {	3707	sub main {
		3708	cf::init_globals; # initialise logging
		3709
		3710	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3711	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3712	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3713	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3714
		3715	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3716
2394	# we must not ever block the main coroutine	3717	# we must not ever block the main coroutine
2395	local $Coro::idle = sub {	3718	local $Coro::idle = sub {
2396	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3719	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2397	(async {	3720	(async {
2398	Event::one_event;	3721	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3722	EV::loop EV::LOOP_ONESHOT;
2399	})->prio (Coro::PRIO_MAX);	3723	})->prio (Coro::PRIO_MAX);
2400	};	3724	};
2401		3725
2402	cfg_load;	3726	evthread_start IO::AIO::poll_fileno;
		3727
		3728	cf::sync_job {
		3729	cf::incloader::init ();
		3730
		3731	cf::init_anim;
		3732	cf::init_attackmess;
		3733	cf::init_dynamic;
		3734
		3735	cf::load_settings;
		3736
		3737	reload_resources;
		3738	reload_config;
2403	db_init;	3739	db_init;
		3740
		3741	cf::init_uuid;
		3742	cf::init_signals;
		3743	cf::init_skills;
		3744
		3745	cf::init_beforeplay;
		3746
		3747	atomic;
		3748
2404	load_extensions;	3749	load_extensions;
2405		3750
2406	$TICK_WATCHER->start;	3751	utime time, time, $RUNTIMEFILE;
2407	Event::loop;	3752
		3753	# no (long-running) fork's whatsoever before this point(!)
		3754	use POSIX ();
		3755	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3756
		3757	cf::_post_init 0;
		3758	};
		3759
		3760	cf::object::thawer::errors_are_fatal 0;
		3761	info "parse errors in files are no longer fatal from this point on.\n";
		3762
		3763	AE::postpone {
		3764	undef &main; # free gobs of memory :)
		3765	};
		3766
		3767	goto &main_loop;
2408	}	3768	}
2409		3769
2410	#############################################################################	3770	#############################################################################
2411	# initialisation and cleanup	3771	# initialisation and cleanup
2412		3772
2413	# install some emergency cleanup handlers	3773	# install some emergency cleanup handlers
2414	BEGIN {	3774	BEGIN {
		3775	our %SIGWATCHER = ();
2415	for my $signal (qw(INT HUP TERM)) {	3776	for my $signal (qw(INT HUP TERM)) {
2416	Event->signal (	3777	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2417	reentrant => 0,
2418	data => WF_AUTOCANCEL,
2419	signal => $signal,
2420	prio => 0,
2421	cb => sub {
2422	cf::cleanup "SIG$signal";	3778	cf::cleanup "SIG$signal";
2423	},
2424	);	3779	};
		3780	}
		3781	}
		3782
		3783	sub write_runtime_sync {
		3784	my $t0 = AE::time;
		3785
		3786	# first touch the runtime file to show we are still running:
		3787	# the fsync below can take a very very long time.
		3788
		3789	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3790
		3791	my $guard = cf::lock_acquire "write_runtime";
		3792
		3793	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3794	or return;
		3795
		3796	my $value = $cf::RUNTIME + 90 + 10;
		3797	# 10 is the runtime save interval, for a monotonic clock
		3798	# 60 allows for the watchdog to kill the server.
		3799
		3800	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3801	and return;
		3802
		3803	# always fsync - this file is important
		3804	aio_fsync $fh
		3805	and return;
		3806
		3807	# touch it again to show we are up-to-date
		3808	aio_utime $fh, undef, undef;
		3809
		3810	close $fh
		3811	or return;
		3812
		3813	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3814	and return;
		3815
		3816	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3817
2425	}	3818	1
		3819	}
		3820
		3821	our $uuid_lock;
		3822	our $uuid_skip;
		3823
		3824	sub write_uuid_sync($) {
		3825	$uuid_skip ||= $_[0];
		3826
		3827	return if $uuid_lock;
		3828	local $uuid_lock = 1;
		3829
		3830	my $uuid = "$LOCALDIR/uuid";
		3831
		3832	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3833	or return;
		3834
		3835	my $value = uuid_seq uuid_cur;
		3836
		3837	unless ($value) {
		3838	info "cowardly refusing to write zero uuid value!\n";
		3839	return;
		3840	}
		3841
		3842	my $value = uuid_str $value + $uuid_skip;
		3843	$uuid_skip = 0;
		3844
		3845	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3846	and return;
		3847
		3848	# always fsync - this file is important
		3849	aio_fsync $fh
		3850	and return;
		3851
		3852	close $fh
		3853	or return;
		3854
		3855	aio_rename "$uuid~", $uuid
		3856	and return;
		3857
		3858	trace "uuid file written ($value).\n";
		3859
		3860	1
		3861
		3862	}
		3863
		3864	sub write_uuid($$) {
		3865	my ($skip, $sync) = @_;
		3866
		3867	$sync ? write_uuid_sync $skip
		3868	: async { write_uuid_sync $skip };
2426	}	3869	}
2427		3870
2428	sub emergency_save() {	3871	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	3872	my $freeze_guard = cf::freeze_mainloop;
2430		3873
2431	warn "enter emergency perl save\n";	3874	info "emergency_perl_save: enter\n";
		3875
		3876	# this is a trade-off: we want to be very quick here, so
		3877	# save all maps without fsync, and later call a global sync
		3878	# (which in turn might be very very slow)
		3879	local $USE_FSYNC = 0;
2432		3880
2433	cf::sync_job {	3881	cf::sync_job {
		3882	cf::write_runtime_sync; # external watchdog should not bark
		3883
2434	# use a peculiar iteration method to avoid tripping on perl	3884	# use a peculiar iteration method to avoid tripping on perl
2435	# refcount bugs in for. also avoids problems with players	3885	# refcount bugs in for. also avoids problems with players
2436	# and maps saved/destroyed asynchronously.	3886	# and maps saved/destroyed asynchronously.
2437	warn "begin emergency player save\n";	3887	info "emergency_perl_save: begin player save\n";
2438	for my $login (keys %cf::PLAYER) {	3888	for my $login (keys %cf::PLAYER) {
2439	my $pl = $cf::PLAYER{$login} or next;	3889	my $pl = $cf::PLAYER{$login} or next;
2440	$pl->valid or next;	3890	$pl->valid or next;
		3891	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2441	$pl->save;	3892	$pl->save;
2442	}	3893	}
2443	warn "end emergency player save\n";	3894	info "emergency_perl_save: end player save\n";
2444		3895
2445	warn "begin emergency map save\n";	3896	cf::write_runtime_sync; # external watchdog should not bark
		3897
		3898	info "emergency_perl_save: begin map save\n";
2446	for my $path (keys %cf::MAP) {	3899	for my $path (keys %cf::MAP) {
2447	my $map = $cf::MAP{$path} or next;	3900	my $map = $cf::MAP{$path} or next;
2448	$map->valid or next;	3901	$map->valid or next;
2449	$map->save;	3902	$map->save;
2450	}	3903	}
2451	warn "end emergency map save\n";	3904	info "emergency_perl_save: end map save\n";
2452		3905
2453	warn "begin emergency database checkpoint\n";	3906	cf::write_runtime_sync; # external watchdog should not bark
		3907
		3908	info "emergency_perl_save: begin database checkpoint\n";
2454	BDB::db_env_txn_checkpoint $DB_ENV;	3909	BDB::db_env_txn_checkpoint $DB_ENV;
2455	warn "end emergency database checkpoint\n";	3910	info "emergency_perl_save: end database checkpoint\n";
		3911
		3912	info "emergency_perl_save: begin write uuid\n";
		3913	write_uuid_sync 1;
		3914	info "emergency_perl_save: end write uuid\n";
		3915
		3916	cf::write_runtime_sync; # external watchdog should not bark
		3917
		3918	trace "emergency_perl_save: syncing database to disk";
		3919	BDB::db_env_txn_checkpoint $DB_ENV;
		3920
		3921	info "emergency_perl_save: starting sync\n";
		3922	IO::AIO::aio_sync sub {
		3923	info "emergency_perl_save: finished sync\n";
		3924	};
		3925
		3926	cf::write_runtime_sync; # external watchdog should not bark
		3927
		3928	trace "emergency_perl_save: flushing outstanding aio requests";
		3929	while (IO::AIO::nreqs || BDB::nreqs) {
		3930	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3931	}
		3932
		3933	cf::write_runtime_sync; # external watchdog should not bark
2456	};	3934	};
2457		3935
2458	warn "leave emergency perl save\n";	3936	info "emergency_perl_save: leave\n";
2459	}	3937	}
2460		3938
2461	sub post_cleanup {	3939	sub post_cleanup {
2462	my ($make_core) = @_;	3940	my ($make_core) = @_;
2463		3941
		3942	IO::AIO::flush;
		3943
2464	warn Carp::longmess "post_cleanup backtrace"	3944	error Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	3945	if $make_core;
2466	}
2467		3946
		3947	my $fh = pidfile;
		3948	unlink $PIDFILE if <$fh> == $$;
		3949	}
		3950
		3951	# a safer delete_package, copied from Symbol
		3952	sub clear_package($) {
		3953	my $pkg = shift;
		3954
		3955	# expand to full symbol table name if needed
		3956	unless ($pkg =~ /^main::.*::$/) {
		3957	$pkg = "main$pkg" if $pkg =~ /^::/;
		3958	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3959	$pkg .= '::' unless $pkg =~ /::$/;
		3960	}
		3961
		3962	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3963	my $stem_symtab = *{$stem}{HASH};
		3964
		3965	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3966	or return;
		3967
		3968	# clear all symbols
		3969	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3970	for my $name (keys %$leaf_symtab) {
		3971	_gv_clear *{"$pkg$name"};
		3972	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3973	}
		3974	}
		3975
2468	sub reload() {	3976	sub do_reload_perl() {
2469	# can/must only be called in main	3977	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	3978	unless (in_main) {
2471	warn "can only reload from main coroutine";	3979	error "can only reload from main coroutine";
2472	return;	3980	return;
2473	}	3981	}
2474		3982
2475	warn "reloading...";	3983	return if $RELOAD++;
2476		3984
2477	warn "entering sync_job";	3985	my $t1 = AE::time;
2478		3986
		3987	while ($RELOAD) {
		3988	cf::get_slot 0.1, -1, "reload_perl";
		3989	info "perl_reload: reloading...";
		3990
		3991	trace "perl_reload: entering sync_job";
		3992
2479	cf::sync_job {	3993	cf::sync_job {
2480	cf::write_runtime; # external watchdog should not bark
2481	cf::emergency_save;	3994	#cf::emergency_save;
2482	cf::write_runtime; # external watchdog should not bark
2483		3995
2484	warn "syncing database to disk";
2485	BDB::db_env_txn_checkpoint $DB_ENV;
2486
2487	# if anything goes wrong in here, we should simply crash as we already saved
2488
2489	warn "cancelling all WF_AUTOCANCEL watchers";
2490	for (Event::all_watchers) {
2491	$_->cancel if $_->data & WF_AUTOCANCEL;
2492	}
2493
2494	warn "flushing outstanding aio requests";
2495	for (;;) {
2496	BDB::flush;
2497	IO::AIO::flush;
2498	Coro::cede;
2499	last unless IO::AIO::nreqs || BDB::nreqs;
2500	warn "iterate...";
2501	}
2502
2503	++$RELOAD;
2504
2505	warn "cancelling all extension coros";	3996	trace "perl_reload: cancelling all extension coros";
2506	$_->cancel for values %EXT_CORO;	3997	$_->cancel for values %EXT_CORO;
2507	%EXT_CORO = ();	3998	%EXT_CORO = ();
2508		3999
2509	warn "removing commands";	4000	trace "perl_reload: removing commands";
2510	%COMMAND = ();	4001	%COMMAND = ();
2511		4002
2512	warn "removing ext commands";	4003	trace "perl_reload: removing ext/exti commands";
2513	%EXTCMD = ();	4004	%EXTCMD = ();
		4005	%EXTICMD = ();
2514		4006
2515	warn "unloading/nuking all extensions";	4007	trace "perl_reload: unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {	4008	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";	4009	trace "... unloading $pkg";
2518		4010
2519	if (my $cb = $pkg->can ("unload")) {	4011	if (my $cb = $pkg->can ("unload")) {
2520	eval {	4012	eval {
2521	$cb->($pkg);	4013	$cb->($pkg);
2522	1	4014	1
2523	} or warn "$pkg unloaded, but with errors: $@";	4015	} or error "$pkg unloaded, but with errors: $@";
		4016	}
		4017
		4018	trace "... clearing $pkg";
		4019	clear_package $pkg;
2524	}	4020	}
2525		4021
2526	warn "... nuking $pkg";
2527	Symbol::delete_package $pkg;
2528	}
2529
2530	warn "unloading all perl modules loaded from $LIBDIR";	4022	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2531	while (my ($k, $v) = each %INC) {	4023	while (my ($k, $v) = each %INC) {
2532	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4024	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2533		4025
2534	warn "... unloading $k";	4026	trace "... unloading $k";
2535	delete $INC{$k};	4027	delete $INC{$k};
2536		4028
2537	$k =~ s/\.pm$//;	4029	$k =~ s/\.pm$//;
2538	$k =~ s/\//::/g;	4030	$k =~ s/\//::/g;
2539		4031
2540	if (my $cb = $k->can ("unload_module")) {	4032	if (my $cb = $k->can ("unload_module")) {
2541	$cb->();	4033	$cb->();
		4034	}
		4035
		4036	clear_package $k;
2542	}	4037	}
2543		4038
2544	Symbol::delete_package $k;
2545	}
2546
2547	warn "getting rid of safe::, as good as possible";	4039	trace "perl_reload: getting rid of safe::, as good as possible";
2548	Symbol::delete_package "safe::$_"	4040	clear_package "safe::$_"
2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4041	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2550		4042
2551	warn "unloading cf.pm \"a bit\"";	4043	trace "perl_reload: unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	4044	delete $INC{"cf.pm"};
		4045	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2553		4046
2554	# don't, removes xs symbols, too,	4047	# don't, removes xs symbols, too,
2555	# and global variables created in xs	4048	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	4049	#clear_package __PACKAGE__;
2557		4050
2558	warn "unload completed, starting to reload now";	4051	info "perl_reload: unload completed, starting to reload now";
2559		4052
2560	warn "reloading cf.pm";	4053	trace "perl_reload: reloading cf.pm";
2561	require cf;	4054	require cf;
2562	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4055	cf::_connect_to_perl_1;
2563		4056
2564	warn "loading config and database again";	4057	trace "perl_reload: loading config and database again";
2565	cf::cfg_load;	4058	cf::reload_config;
2566		4059
2567	warn "loading extensions";	4060	trace "perl_reload: loading extensions";
2568	cf::load_extensions;	4061	cf::load_extensions;
2569		4062
		4063	if ($REATTACH_ON_RELOAD) {
2570	warn "reattaching attachments to objects/players";	4064	trace "perl_reload: reattaching attachments to objects/players";
2571	_global_reattach; # objects, sockets	4065	_global_reattach; # objects, sockets
2572	warn "reattaching attachments to maps";	4066	trace "perl_reload: reattaching attachments to maps";
2573	reattach $_ for values %MAP;	4067	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	4068	trace "perl_reload: reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	4069	reattach $_ for values %PLAYER;
		4070	}
2576		4071
2577	warn "loading reloadable resources";	4072	cf::_post_init 1;
2578	reload_resources;
2579		4073
2580	warn "leaving sync_job";	4074	trace "perl_reload: leaving sync_job";
2581		4075
2582	1	4076	1
2583	} or do {	4077	} or do {
2584	warn $@;	4078	error $@;
2585	warn "error while reloading, exiting.";	4079	cf::cleanup "perl_reload: error, exiting.";
2586	exit 1;	4080	};
		4081
		4082	--$RELOAD;
		4083	}
		4084
		4085	$t1 = AE::time - $t1;
		4086	info "perl_reload: completed in ${t1}s\n";
		4087	};
		4088
		4089	our $RELOAD_WATCHER; # used only during reload
		4090
		4091	sub reload_perl() {
		4092	# doing reload synchronously and two reloads happen back-to-back,
		4093	# coro crashes during coro_state_free->destroy here.
		4094
		4095	$RELOAD_WATCHER ||= cf::async {
		4096	Coro::AIO::aio_wait cache_extensions;
		4097
		4098	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4099	do_reload_perl;
		4100	undef $RELOAD_WATCHER;
		4101	};
2587	};	4102	};
2588		4103	}
2589	warn "reloaded";
2590	};
2591
2592	our $RELOAD_WATCHER; # used only during reload
2593		4104
2594	register_command "reload" => sub {	4105	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	4106	my ($who, $arg) = @_;
2596		4107
2597	if ($who->flag (FLAG_WIZ)) {	4108	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	4109	$who->message ("reloading server.");
2599		4110	async {
2600	# doing reload synchronously and two reloads happen back-to-back,	4111	$Coro::current->{desc} = "perl_reload";
2601	# coro crashes during coro_state_free->destroy here.
2602
2603	$RELOAD_WATCHER ||= Event->timer (
2604	reentrant => 0,
2605	after => 0,
2606	data => WF_AUTOCANCEL,
2607	cb => sub {
2608	reload;	4112	reload_perl;
2609	undef $RELOAD_WATCHER;
2610	},
2611	);	4113	};
2612	}	4114	}
2613	};	4115	};
2614		4116
2615	unshift @INC, $LIBDIR;	4117	#############################################################################
2616		4118
2617	my $bug_warning = 0;	4119	my $bug_warning = 0;
2618		4120
2619	$TICK_WATCHER = Event->timer (	4121	sub wait_for_tick() {
2620	reentrant => 0,	4122	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2621	parked => 1,	4123
2622	prio => 0,	4124	$WAIT_FOR_TICK->wait;
2623	at => $NEXT_TICK || $TICK,	4125	}
2624	data => WF_AUTOCANCEL,	4126
2625	cb => sub {	4127	sub wait_for_tick_begin() {
		4128	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4129
		4130	my $signal = new Coro::Signal;
		4131	push @WAIT_FOR_TICK_BEGIN, $signal;
		4132	$signal->wait;
		4133	}
		4134
		4135	sub tick {
2626	if ($Coro::current != $Coro::main) {	4136	if ($Coro::current != $Coro::main) {
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4137	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	4138	unless ++$bug_warning > 10;
2629	return;	4139	return;
2630	}	4140	}
2631		4141
2632	$NOW = Event::time;	4142	cf::one_tick; # one server iteration
2633		4143
2634	cf::server_tick; # one server iteration	4144	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2635	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;
2637		4145
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	4147	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2640	Coro::async_pool {	4148	Coro::async_pool {
		4149	$Coro::current->{desc} = "runtime saver";
2641	write_runtime	4150	write_runtime_sync
2642	or warn "ERROR: unable to write runtime file: $!";	4151	or error "ERROR: unable to write runtime file: $!";
2643	};
2644	}	4152	};
		4153	}
2645		4154
		4155	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4156	$sig->send;
		4157	}
2646	$WAIT_FOR_TICK->broadcast;	4158	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648		4159
2649	# my $AFTER = Event::time;	4160	$LOAD = ($NOW - $TICK_START) / $TICK;
2650	# warn $AFTER - $NOW;#d#	4161	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2651		4162
2652	# if we are delayed by four ticks or more, skip them all	4163	if (0) {
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4164	if ($NEXT_TICK) {
2654		4165	my $jitter = $TICK_START - $NEXT_TICK;
2655	$TICK_WATCHER->at ($NEXT_TICK);	4166	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2656	$TICK_WATCHER->start;	4167	debug "jitter $JITTER\n";#d#
		4168	}
2657	},	4169	}
2658	);	4170	}
2659		4171
2660	{	4172	{
2661	BDB::max_poll_time $TICK * 0.1;	4173	# configure BDB
2662	$BDB_POLL_WATCHER = Event->io (	4174
2663	reentrant => 0,
2664	fd => BDB::poll_fileno,
2665	poll => 'r',
2666	prio => 0,
2667	data => WF_AUTOCANCEL,
2668	cb => \&BDB::poll_cb,
2669	);
2670	BDB::min_parallel 8;	4175	BDB::min_parallel 16;
2671		4176	BDB::max_poll_reqs $TICK * 0.1;
2672	BDB::set_sync_prepare {	4177	#$AnyEvent::BDB::WATCHER->priority (1);
2673	my $status;
2674	my $current = $Coro::current;
2675	(
2676	sub {
2677	$status = $!;
2678	$current->ready; undef $current;
2679	},
2680	sub {
2681	Coro::schedule while defined $current;
2682	$! = $status;
2683	},
2684	)
2685	};
2686		4178
2687	unless ($DB_ENV) {	4179	unless ($DB_ENV) {
2688	$DB_ENV = BDB::db_env_create;	4180	$DB_ENV = BDB::db_env_create;
		4181	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4182	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4183	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4184	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4185	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2689		4186
2690	cf::sync_job {	4187	cf::sync_job {
2691	eval {	4188	eval {
2692	BDB::db_env_open	4189	BDB::db_env_open
2693	$DB_ENV,	4190	$DB_ENV,
2694	$BDB_ENV_DIR,	4191	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4192	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4193	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	4194	0666;
2698		4195
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4196	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702	$DB_ENV->set_lk_detect;
2703	};	4197	};
2704		4198
2705	cf::cleanup "db_env_open(db): $@" if $@;	4199	cf::cleanup "db_env_open(db): $@" if $@;
2706	};	4200	};
2707	}	4201	}
		4202
		4203	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4204	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4205	};
		4206	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4207	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4208	};
		4209	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4210	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4211	};
2708	}	4212	}
2709		4213
2710	{	4214	{
		4215	# configure IO::AIO
		4216
2711	IO::AIO::min_parallel 8;	4217	IO::AIO::min_parallel 8;
2712
2713	undef $Coro::AIO::WATCHER;
2714	IO::AIO::max_poll_time $TICK * 0.1;	4218	IO::AIO::max_poll_time $TICK * 0.1;
2715	$AIO_POLL_WATCHER = Event->io (	4219	undef $AnyEvent::AIO::WATCHER;
2716	reentrant => 0,
2717	data => WF_AUTOCANCEL,
2718	fd => IO::AIO::poll_fileno,
2719	poll => 'r',
2720	prio => 6,
2721	cb => \&IO::AIO::poll_cb,
2722	);
2723	}	4220	}
		4221
		4222	our $_log_backtrace;
		4223	our $_log_backtrace_last;
		4224
		4225	sub _log_backtrace {
		4226	my ($msg, @addr) = @_;
		4227
		4228	$msg =~ s/\n$//;
		4229
		4230	if ($_log_backtrace_last eq $msg) {
		4231	LOG llevInfo, "[ABT] $msg\n";
		4232	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4233	# limit the # of concurrent backtraces
		4234	} elsif ($_log_backtrace < 2) {
		4235	$_log_backtrace_last = $msg;
		4236	++$_log_backtrace;
		4237	my $perl_bt = Carp::longmess $msg;
		4238	async {
		4239	$Coro::current->{desc} = "abt $msg";
		4240
		4241	my @bt = fork_call {
		4242	@addr = map { sprintf "%x", $_ } @addr;
		4243	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4244	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4245	or die "addr2line: $!";
		4246
		4247	my @funcs;
		4248	my @res = <$fh>;
		4249	chomp for @res;
		4250	while (@res) {
		4251	my ($func, $line) = splice @res, 0, 2, ();
		4252	push @funcs, "[$func] $line";
		4253	}
		4254
		4255	@funcs
		4256	};
		4257
		4258	LOG llevInfo, "[ABT] $perl_bt\n";
		4259	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4260	LOG llevInfo, "[ABT] $_\n" for @bt;
		4261	--$_log_backtrace;
		4262	};
		4263	} else {
		4264	LOG llevInfo, "[ABT] $msg\n";
		4265	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4266	}
		4267	}
		4268
		4269	# load additional modules
		4270	require "cf/$_.pm" for @EXTRA_MODULES;
		4271	cf::_connect_to_perl_2;
2724		4272
2725	END { cf::emergency_save }	4273	END { cf::emergency_save }
2726		4274
2727	1	4275	1
2728		4276

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