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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC vs.
Revision 1.624 by root, Sat Nov 17 23:40:02 2018 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2018 Marc Alexander Lehmann / the Deliantra team
		5	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		6	#
		7	# Deliantra is free software: you can redistribute it and/or modify it under
		8	# the terms of the Affero GNU General Public License as published by the
		9	# Free Software Foundation, either version 3 of the License, or (at your
		10	# option) any later version.
		11	#
		12	# This program is distributed in the hope that it will be useful,
		13	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		15	# GNU General Public License for more details.
		16	#
		17	# You should have received a copy of the Affero GNU General Public License
		18	# and the GNU General Public License along with this program. If not, see
		19	# <http://www.gnu.org/licenses/>.
		20	#
		21	# The authors can be reached via e-mail to <support@deliantra.net>
		22	#
		23
1	package cf;	24	package cf;
2		25
3	use utf8;	26	use common::sense;
4	use strict;
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
		36	use Carp ();
12		37
		38	use AnyEvent ();
		39	use AnyEvent::IO ();
		40	use AnyEvent::DNS ();
		41
13	use Coro 3.3 ();	42	use Coro ();
		43	use Coro::State;
		44	use Coro::Handle;
		45	use Coro::EV;
14	use Coro::Event;	46	use Coro::AnyEvent;
15	use Coro::Timer;	47	use Coro::Timer;
16	use Coro::Signal;	48	use Coro::Signal;
17	use Coro::Semaphore;	49	use Coro::Semaphore;
		50	use Coro::SemaphoreSet;
		51	use Coro::AnyEvent;
18	use Coro::AIO;	52	use Coro::AIO;
		53	use Coro::BDB 1.6;
		54	use Coro::Storable;
		55	use Coro::Util ();
19		56
		57	use Guard ();
		58	use JSON::XS 2.01 ();
		59	use BDB ();
20	use Data::Dumper;	60	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	61	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	62	use YAML::XS ();
25	use Time::HiRes;	63	use CBOR::XS ();
		64	use IO::AIO ();
		65	use Compress::LZF;
		66	use Digest::MD5 ();
26		67
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	68	AnyEvent::detect;
		69
		70	# configure various modules to our taste
		71	#
		72	$Storable::canonical = 1; # reduce rsync transfers
		73	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		74
		75	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		76
		77	# make sure c-lzf reinitialises itself
		78	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		79	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		80
		81	# strictly for debugging
		82	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		83
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	84	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		85
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	86	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		87
36	our %COMMAND = ();	88	our %COMMAND = ();
37	our %COMMAND_TIME = ();	89	our %COMMAND_TIME = ();
		90
		91	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	92	our %EXTCMD = ();
		93	our %EXTACMD = ();
		94	our %EXTICMD = ();
		95	our %EXTIACMD = ();
		96	our %EXT_CORO = (); # coroutines bound to extensions
		97	our %EXT_MAP = (); # pluggable maps
39		98
		99	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	100	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	101	our @REFLECT; # set by XS
		102	our %REFLECT; # set by us
42		103
43	our $TICK = MAX_TIME * 1e-6;	104	our $CONFDIR = confdir;
44	our $TICK_WATCHER;	105
		106	our $DATADIR = datadir;
		107	our $LIBDIR = "$DATADIR/ext";
		108	our $PODDIR = "$DATADIR/pod";
		109	our $MAPDIR = "$DATADIR/" . mapdir;
		110
		111	our $LOCALDIR = localdir;
		112	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		113	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		114	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		115	our $RANDOMDIR = "$LOCALDIR/random";
		116	our $BDBDIR = "$LOCALDIR/db";
		117	our $PIDFILE = "$LOCALDIR/pid";
		118	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		119
		120	#our %RESOURCE; # unused
		121
		122	our $OUTPUT_RATE_MIN = 3000;
		123	our $OUTPUT_RATE_MAX = 1000000;
		124
		125	our $MAX_LINKS = 32; # how many chained exits to follow
		126	our $VERBOSE_IO = 1;
		127
		128	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		129	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	130	our $NEXT_TICK;
		131	our $USE_FSYNC = 1; # use fsync to write maps - default on
		132
		133	our $BDB_DEADLOCK_WATCHER;
		134	our $BDB_CHECKPOINT_WATCHER;
		135	our $BDB_TRICKLE_WATCHER;
		136	our $DB_ENV;
		137
		138	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		139
		140	our %CFG;
		141	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		142
		143	our $UPTIME; $UPTIME ||= time;
		144	our $RUNTIME = 0;
		145	our $SERVER_TICK = 0;
46	our $NOW;	146	our $NOW;
47		147
48	our %CFG;	148	our (%PLAYER, %PLAYER_LOADING); # all users
		149	our (%MAP, %MAP_LOADING ); # all maps
		150	our $LINK_MAP; # the special {link} map, which is always available
49		151
50	our $UPTIME; $UPTIME ||= time;	152	# used to convert map paths into valid unix filenames by replacing / by ∕
51	our $RUNTIME;	153	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
52		154
53	our %PLAYER; # all users	155	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
54	our %MAP; # all maps	156	our $LOADAVG; # same thing, but with alpha-smoothing
55	our $LINK_MAP; # the special {link} map	157	our $JITTER; # average jitter
56	our $RANDOM_MAPS = cf::localdir . "/random";	158	our $TICK_START; # for load detecting purposes
57	our %EXT_CORO; # coroutines bound to extensions
58		159
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	160	our @POST_INIT;
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	161
		162	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		163	our $REALLY_UNLOOP; # never set to true, please :)
		164
		165	our $WAIT_FOR_TICK = new Coro::Signal;
		166	our @WAIT_FOR_TICK_BEGIN;
61		167
62	binmode STDOUT;	168	binmode STDOUT;
63	binmode STDERR;	169	binmode STDERR;
64		170
65	# read virtual server time, if available	171	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	172	unless ($RUNTIME || !-e $RUNTIMEFILE) {
67	open my $fh, "<", cf::localdir . "/runtime"	173	open my $fh, "<", $RUNTIMEFILE
68	or die "unable to read runtime file: $!";	174	or die "unable to read $RUNTIMEFILE file: $!";
69	$RUNTIME = <$fh> + 0.;	175	$RUNTIME = <$fh> + 0.;
70	}	176	}
71		177
72	mkdir cf::localdir;	178	eval "sub TICK() { $TICK } 1" or die;
73	mkdir cf::localdir . "/" . cf::playerdir;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		179
78	# a special map that is always available	180	mkdir $_
79	our $LINK_MAP;	181	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		182
80	our $EMERGENCY_POSITION;	183	our $EMERGENCY_POSITION;
81		184
		185	sub cf::map::normalise;
		186
		187	sub in_main() {
		188	$Coro::current == $Coro::main
		189	}
		190
82	#############################################################################	191	#############################################################################
83		192
		193	%REFLECT = ();
		194	for (@REFLECT) {
		195	my $reflect = JSON::XS::decode_json $_;
		196	$REFLECT{$reflect->{class}} = $reflect;
		197	}
		198
		199	# this is decidedly evil
		200	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		201
		202	#############################################################################
		203
84	=head2 GLOBAL VARIABLES	204	=head2 GLOBAL VARIABLES
85		205
86	=over 4	206	=over 4
87		207
88	=item $cf::UPTIME	208	=item $cf::UPTIME
89		209
90	The timestamp of the server start (so not actually an uptime).	210	The timestamp of the server start (so not actually an "uptime").
		211
		212	=item $cf::SERVER_TICK
		213
		214	An unsigned integer that starts at zero when the server is started and is
		215	incremented on every tick.
		216
		217	=item $cf::NOW
		218
		219	The (real) time of the last (current) server tick - updated before and
		220	after tick processing, so this is useful only as a rough "what time is it
		221	now" estimate.
		222
		223	=item $cf::TICK
		224
		225	The interval between each server tick, in seconds.
91		226
92	=item $cf::RUNTIME	227	=item $cf::RUNTIME
93		228
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	229	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	230	every server tick.
96		231
97	=item $cf::LIBDIR	232	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		233	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		234	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		235
99	The perl library directory, where extensions and cf-specific modules can	236	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	237	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		238	unique-items directory, player file directory, random maps directory and
		239	database environment.
101		240
		241	=item $cf::LOADAVG
		242
		243	The current CPU load on the server (alpha-smoothed), as a value between 0
		244	(none) and 1 (overloaded), indicating how much time is spent on processing
		245	objects per tick. Healthy values are < 0.5.
		246
102	=item $cf::NOW	247	=item $cf::LOAD
103		248
104	The time of the last (current) server tick.	249	The raw value load value from the last tick.
105
106	=item $cf::TICK
107
108	The interval between server ticks, in seconds.
109		250
110	=item %cf::CFG	251	=item %cf::CFG
111		252
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	253	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	254	from wherever your confdir points to.
114		255
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	256	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		257
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	258	These are functions that inhibit the current coroutine one tick.
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	259	cf::wait_for_tick_begin only returns directly I<after> the tick
119	processing has been done. Call C<< ->wait >> on them to maximise the	260	processing (and consequently, can only wake one thread per tick), while
120	window of cpu time available, or simply to synchronise to the server tick.	261	cf::wait_for_tick wakes up all waiters after tick processing.
		262
		263	Note that cf::wait_for_tick will immediately return when the server is not
		264	ticking, making it suitable for small pauses in threads that need to run
		265	when the server is paused. If that is not applicable (i.e. you I<really>
		266	want to wait, use C<$cf::WAIT_FOR_TICK>).
		267
		268	=item $cf::WAIT_FOR_TICK
		269
		270	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		271	variable contains a L<Coro::Signal> that is broadcats after every server
		272	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		273	next server tick.
		274
		275	=cut
		276
		277	sub wait_for_tick();
		278	sub wait_for_tick_begin();
		279
		280	=item @cf::INVOKE_RESULTS
		281
		282	This array contains the results of the last C<invoke ()> call. When
		283	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		284	that call.
		285
		286	=item %cf::REFLECT
		287
		288	Contains, for each (C++) class name, a hash reference with information
		289	about object members (methods, scalars, arrays and flags) and other
		290	metadata, which is useful for introspection.
121		291
122	=back	292	=back
123		293
124	=cut	294	=cut
125		295
126	BEGIN {	296	sub error(@) { LOG llevError, join "", @_ }
127	*CORE::GLOBAL::warn = sub {	297	sub warn (@) { LOG llevWarn , join "", @_ }
		298	sub info (@) { LOG llevInfo , join "", @_ }
		299	sub debug(@) { LOG llevDebug, join "", @_ }
		300	sub trace(@) { LOG llevTrace, join "", @_ }
		301
		302	$Coro::State::WARNHOOK = sub {
128	my $msg = join "", @_;	303	my $msg = join "", @_;
129	utf8::encode $msg;
130		304
131	$msg .= "\n"	305	$msg .= "\n"
132	unless $msg =~ /\n$/;	306	unless $msg =~ /\n$/;
133		307
		308	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		309
134	LOG llevError, $msg;	310	LOG llevWarn, $msg;
135	};	311	};
136	}	312
		313	$Coro::State::DIEHOOK = sub {
		314	return unless $^S eq 0; # "eq", not "=="
		315
		316	error Carp::longmess $_[0];
		317
		318	if (in_main) {#d#
		319	error "DIEHOOK called in main context, Coro bug?\n";#d#
		320	return;#d#
		321	}#d#
		322
		323	# kill coroutine otherwise
		324	Coro::terminate
		325	};
137		326
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	327	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	328	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	329	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	330	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	331	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		332	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	333	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		334
145	# we bless all objects into (empty) derived classes to force a method lookup	335	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	336	# within the Safe compartment.
147	for my $pkg (qw(	337	for my $pkg (qw(
148	cf::global cf::attachable	338	cf::global cf::attachable
149	cf::object cf::object::player	339	cf::object cf::object::player
150	cf::client cf::player	340	cf::client cf::player
151	cf::arch cf::living	341	cf::arch cf::living
		342	cf::map cf::mapspace
152	cf::map cf::party cf::region	343	cf::party cf::region
153	)) {	344	)) {
154	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	345	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	346	}
157		347
158	$Event::DIED = sub {	348	$EV::DIED = sub {
159	warn "error in event callback: @_";	349	warn "error in event callback: $@";
160	};	350	};
161		351
162	my %ext_pkg;	352	#############################################################################
163	my @exts;	353
164	my @hook;	354	sub fork_call(&@);
		355	sub get_slot($;$$);
		356
		357	#############################################################################
165		358
166	=head2 UTILITY FUNCTIONS	359	=head2 UTILITY FUNCTIONS
167		360
168	=over 4	361	=over 4
169		362
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	381	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	382	$d
190	} || "[unable to dump $_[0]: '$@']";	383	} || "[unable to dump $_[0]: '$@']";
191	}	384	}
192		385
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	386	=item $scalar = cf::load_file $path
194		387
		388	Loads the given file from path and returns its contents. Croaks on error
		389	and can block.
		390
		391	=cut
		392
		393	sub load_file($) {
		394	0 <= aio_load $_[0], my $data
		395	or Carp::croak "$_[0]: $!";
		396
		397	$data
		398	}
		399
		400	=item $success = cf::replace_file $path, $data, $sync
		401
		402	Atomically replaces the file at the given $path with new $data, and
		403	optionally $sync the data to disk before replacing the file.
		404
		405	=cut
		406
		407	sub replace_file($$;$) {
		408	my ($path, $data, $sync) = @_;
		409
		410	my $lock = cf::lock_acquire ("replace_file:$path");
		411
		412	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		413	or return;
		414
		415	$data = $data->() if ref $data;
		416
		417	length $data == aio_write $fh, 0, (length $data), $data, 0
		418	or return;
		419
		420	!$sync
		421	or !aio_fsync $fh
		422	or return;
		423
		424	aio_close $fh
		425	and return;
		426
		427	aio_rename "$path~", $path
		428	and return;
		429
		430	if ($sync) {
		431	$path =~ s%/[^/]*$%%;
		432	aio_pathsync $path;
		433	}
		434
		435	1
		436	}
		437
195	=item $ref = cf::from_json $json	438	=item $ref = cf::decode_json $json
196		439
197	Converts a JSON string into the corresponding perl data structure.	440	Converts a JSON string into the corresponding perl data structure.
198		441
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	442	=item $json = cf::encode_json $ref
207		443
208	Converts a perl data structure into its JSON representation.	444	Converts a perl data structure into its JSON representation.
209		445
210	=cut	446	=cut
211		447
212	sub to_json($) {	448	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	449
214	JSON::Syck::Dump $_[0]	450	sub encode_json($) { $json_coder->encode ($_[0]) }
		451	sub decode_json($) { $json_coder->decode ($_[0]) }
		452
		453	=item $ref = cf::decode_storable $scalar
		454
		455	Same as Coro::Storable::thaw, so blocks.
		456
		457	=cut
		458
		459	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		460
		461	=item $ref = cf::decode_yaml $scalar
		462
		463	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		464
		465	=cut
		466
		467	sub decode_yaml($) {
		468	fork_call { YAML::XS::Load $_[0] } @_
		469	}
		470
		471	=item $scalar = cf::decode_cbor $scalar
		472
		473	Same as CBOR::XS::decode_cbor, but takes server ticks into account, so
		474	blocks. For small amounts of data, C<CBOR::XS::decode_cbor> is the better
		475	alternative.
		476
		477	=cut
		478
		479	sub decode_cbor($) {
		480	# we assume 10mb/s minimum decoding speed (on a ~2ghz machine)
		481	cf::get_slot +(length $_[0]) / 10_000_000, 0, "decode_cbor";
		482	CBOR::XS::decode_cbor $_[0]
		483	}
		484
		485	=item $scalar = cf::unlzf $scalar
		486
		487	Same as Compress::LZF::compress, but takes server ticks into account, so
		488	blocks.
		489
		490	=cut
		491
		492	sub unlzf($) {
		493	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		494	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		495	Compress::LZF::decompress $_[0]
		496	}
		497
		498	=item cf::post_init { BLOCK }
		499
		500	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		501	but I<before> the server starts ticking again.
		502
		503	The codeblock will have a single boolean argument to indicate whether this
		504	is a reload or not.
		505
		506	=cut
		507
		508	sub post_init(&) {
		509	push @POST_INIT, shift;
		510	}
		511
		512	sub _post_init {
		513	trace "running post_init jobs";
		514
		515	# run them in parallel...
		516
		517	my @join;
		518
		519	while () {
		520	push @join, map &Coro::async ($_, 0), @POST_INIT;
		521	@POST_INIT = ();
		522
		523	@join or last;
		524
		525	(pop @join)->join;
		526	}
215	}	527	}
216		528
217	=item cf::lock_wait $string	529	=item cf::lock_wait $string
218		530
219	Wait until the given lock is available. See cf::lock_acquire.	531	Wait until the given lock is available. See cf::lock_acquire.
220		532
221	=item my $lock = cf::lock_acquire $string	533	=item my $lock = cf::lock_acquire $string
222		534
223	Wait until the given lock is available and then acquires it and returns	535	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	536	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	537	for example when the coroutine gets canceled), the lock is automatically
226	returned.	538	returned.
227		539
		540	Locks are *not* recursive, locking from the same coro twice results in a
		541	deadlocked coro.
		542
228	Lock names should begin with a unique identifier (for example, cf::map::find	543	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	544	uses map_find and cf::map::load uses map_load).
230		545
231	=cut	546	=item $locked = cf::lock_active $string
232		547
233	our %LOCK;	548	Return true if the lock is currently active, i.e. somebody has locked it.
		549
		550	=cut
		551
		552	our $LOCKS = new Coro::SemaphoreSet;
234		553
235	sub lock_wait($) {	554	sub lock_wait($) {
236	my ($key) = @_;	555	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	556	}
244		557
245	sub lock_acquire($) {	558	sub lock_acquire($) {
246	my ($key) = @_;	559	$LOCKS->guard ($_[0])
		560	}
247		561
248	# wait, to be sure we are not locked	562	sub lock_active($) {
249	lock_wait $key;	563	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	564	}
258		565
259	sub freeze_mainloop {	566	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	567	tick_inhibit_inc;
261		568
262	my $guard = Coro::guard { $TICK_WATCHER->start };	569	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	570	}
264	$guard	571
		572	=item cf::periodic $interval, $cb
		573
		574	Like EV::periodic, but randomly selects a starting point so that the actions
		575	get spread over time.
		576
		577	=cut
		578
		579	sub periodic($$) {
		580	my ($interval, $cb) = @_;
		581
		582	my $start = rand List::Util::min 180, $interval;
		583
		584	EV::periodic $start, $interval, 0, $cb
		585	}
		586
		587	=item cf::get_slot $time[, $priority[, $name]]
		588
		589	Allocate $time seconds of blocking CPU time at priority C<$priority>
		590	(default: 0): This call blocks and returns only when you have at least
		591	C<$time> seconds of cpu time till the next tick. The slot is only valid
		592	till the next cede.
		593
		594	Background jobs should use a priority less than zero, interactive jobs
		595	should use 100 or more.
		596
		597	The optional C<$name> can be used to identify the job to run. It might be
		598	used for statistical purposes and should identify the same time-class.
		599
		600	Useful for short background jobs.
		601
		602	=cut
		603
		604	our @SLOT_QUEUE;
		605	our $SLOT_QUEUE;
		606	our $SLOT_DECAY = 0.9;
		607
		608	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		609	$SLOT_QUEUE = Coro::async {
		610	$Coro::current->desc ("timeslot manager");
		611
		612	my $signal = new Coro::Signal;
		613	my $busy;
		614
		615	while () {
		616	next_job:
		617
		618	Coro::cede;
		619
		620	my $avail = cf::till_tick;
		621
		622	for (0 .. $#SLOT_QUEUE) {
		623	if ($SLOT_QUEUE[$_][0] <= $avail) {
		624	$busy = 0;
		625	my $job = splice @SLOT_QUEUE, $_, 1, ();
		626	$job->[2]->send;
		627	goto next_job;
		628	} else {
		629	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		630	}
		631	}
		632
		633	if (@SLOT_QUEUE) {
		634	wait_for_tick;
		635	} else {
		636	$busy = 0;
		637	Coro::schedule;
		638	}
		639	}
		640	};
		641
		642	sub get_slot($;$$) {
		643	return if tick_inhibit || $Coro::current == $Coro::main;
		644
		645	my ($time, $pri, $name) = @_;
		646
		647	$time = clamp $time, 0.01, $TICK * .6;
		648
		649	my $sig = new Coro::Signal;
		650
		651	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		652	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		653	$SLOT_QUEUE->ready;
		654	$sig->wait;
265	}	655	}
266		656
267	=item cf::async { BLOCK }	657	=item cf::async { BLOCK }
268		658
269	Currently the same as Coro::async_pool, meaning you cannot use	659	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		664
275	BEGIN { *async = \&Coro::async_pool }	665	BEGIN { *async = \&Coro::async_pool }
276		666
277	=item cf::sync_job { BLOCK }	667	=item cf::sync_job { BLOCK }
278		668
279	The design of crossfire+ requires that the main coro ($Coro::main) is	669	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	670	is always able to handle events or is runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	671	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		672	acceptable.
282		673
283	If it must be done, put the blocking parts into C<sync_job>. This will run	674	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	675	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	676	server will be frozen during this time, so the block should either finish
286	fast or be very important.	677	fast or be very important.
…		…
288	=cut	679	=cut
289		680
290	sub sync_job(&) {	681	sub sync_job(&) {
291	my ($job) = @_;	682	my ($job) = @_;
292		683
293	if ($Coro::current == $Coro::main) {	684	if (in_main) {
		685	my $time = AE::time;
		686
294	# this is the main coro, too bad, we have to block	687	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	688	# till the operation succeeds, freezing the server :/
296		689
297	# TODO: use suspend/resume instead	690	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	691
299	my $freeze_guard = freeze_mainloop;	692	my $freeze_guard = freeze_mainloop;
300		693
301	my $busy = 1;	694	my $busy = 1;
302	my @res;	695	my @res;
303		696
304	(async {	697	(async {
		698	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	699	@res = eval { $job->() };
306	warn $@ if $@;	700	error $@ if $@;
307	undef $busy;	701	undef $busy;
308	})->prio (Coro::PRIO_MAX);	702	})->prio (Coro::PRIO_MAX);
309		703
310	while ($busy) {	704	while ($busy) {
311	Coro::cede or Event::one_event;	705	if (Coro::nready) {
		706	Coro::cede_notself;
		707	} else {
		708	EV::run EV::RUN_ONCE;
312	}	709	}
		710	}
		711
		712	my $time = AE::time - $time;
		713
		714	$TICK_START += $time; # do not account sync jobs to server load
313		715
314	wantarray ? @res : $res[0]	716	wantarray ? @res : $res[0]
315	} else {	717	} else {
316	# we are in another coroutine, how wonderful, everything just works	718	# we are in another coroutine, how wonderful, everything just works
317		719
…		…
319	}	721	}
320	}	722	}
321		723
322	=item $coro = cf::async_ext { BLOCK }	724	=item $coro = cf::async_ext { BLOCK }
323		725
324	Like async, but this coro is automcatially being canceled when the	726	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	727	extension calling this is being unloaded.
326		728
327	=cut	729	=cut
328		730
329	sub async_ext(&) {	731	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	739	$EXT_CORO{$coro+0} = $coro;
338		740
339	$coro	741	$coro
340	}	742	}
341		743
342	sub write_runtime {	744	=item fork_call { }, @args
343	my $runtime = cf::localdir . "/runtime";
344		745
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	746	Executes the given code block with the given arguments in a seperate
346	or return;	747	process, returning the results. Everything must be serialisable with
		748	Coro::Storable. May, of course, block. Note that the executed sub may
		749	never block itself or use any form of event handling.
347		750
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	751	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		752
352	aio_fsync $fh	753	sub post_fork {
353	and return;	754	reset_signals;
		755	}
354		756
355	close $fh	757	sub fork_call(&@) {
356	or return;	758	my ($cb, @args) = @_;
357		759
358	aio_rename "$runtime~", $runtime	760	my @res = Coro::Util::fork_eval {
359	and return;	761	cf::post_fork;
		762	&$cb
		763	} @args;
360		764
		765	wantarray ? @res : $res[-1]
		766	}
		767
		768	sub objinfo {
361	1	769	(
		770	"counter value" => cf::object::object_count,
		771	"objects created" => cf::object::create_count,
		772	"objects destroyed" => cf::object::destroy_count,
		773	"freelist size" => cf::object::free_count,
		774	"allocated objects" => cf::object::objects_size,
		775	"active objects" => cf::object::actives_size,
		776	)
		777	}
		778
		779	=item $coin = coin_from_name $name
		780
		781	=cut
		782
		783	our %coin_alias = (
		784	"silver" => "silvercoin",
		785	"silvercoin" => "silvercoin",
		786	"silvercoins" => "silvercoin",
		787	"gold" => "goldcoin",
		788	"goldcoin" => "goldcoin",
		789	"goldcoins" => "goldcoin",
		790	"platinum" => "platinacoin",
		791	"platinumcoin" => "platinacoin",
		792	"platinumcoins" => "platinacoin",
		793	"platina" => "platinacoin",
		794	"platinacoin" => "platinacoin",
		795	"platinacoins" => "platinacoin",
		796	"royalty" => "royalty",
		797	"royalties" => "royalty",
		798	);
		799
		800	sub coin_from_name($) {
		801	$coin_alias{$_[0]}
		802	? cf::arch::find $coin_alias{$_[0]}
		803	: undef
		804	}
		805
		806	=item $value = cf::db_get $family => $key
		807
		808	Returns a single value from the environment database.
		809
		810	=item cf::db_put $family => $key => $value
		811
		812	Stores the given C<$value> in the family. It can currently store binary
		813	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		814
		815	=item $db = cf::db_table "name"
		816
		817	Create and/or open a new database table. The string must not be "db" and must be unique
		818	within each server.
		819
		820	=cut
		821
		822	sub db_table($) {
		823	cf::error "db_get called from main context"
		824	if $Coro::current == $Coro::main;
		825
		826	my ($name) = @_;
		827	my $db = BDB::db_create $DB_ENV;
		828
		829	eval {
		830	$db->set_flags (BDB::CHKSUM);
		831
		832	utf8::encode $name;
		833	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		834	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		835	cf::cleanup "db_open(db): $!" if $!;
		836	};
		837	cf::cleanup "db_open(db): $@" if $@;
		838
		839	$db
		840	}
		841
		842	our $DB;
		843
		844	sub db_init {
		845	$DB ||= db_table "db";
		846	}
		847
		848	sub db_get($$) {
		849	my $key = "$_[0]/$_[1]";
		850
		851	cf::error "db_get called from main context"
		852	if $Coro::current == $Coro::main;
		853
		854	BDB::db_get $DB, undef, $key, my $data;
		855
		856	$! ? ()
		857	: $data
		858	}
		859
		860	sub db_put($$$) {
		861	BDB::dbreq_pri 4;
		862	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		863	}
		864
		865	=item cf::cache $id => [$paths...], $processversion => $process
		866
		867	Generic caching function that returns the value of the resource $id,
		868	caching and regenerating as required.
		869
		870	This function can block.
		871
		872	=cut
		873
		874	sub cache {
		875	my ($id, $src, $processversion, $process) = @_;
		876
		877	my $meta =
		878	join "\x00",
		879	$processversion,
		880	map {
		881	aio_stat $_
		882	and Carp::croak "$_: $!";
		883
		884	($_, (stat _)[7,9])
		885	} @$src;
		886
		887	my $dbmeta = db_get cache => "$id/meta";
		888	if ($dbmeta ne $meta) {
		889	# changed, we may need to process
		890
		891	my @data;
		892	my $md5;
		893
		894	for (0 .. $#$src) {
		895	$data[$_] = load_file $src->[$_];
		896	}
		897
		898	# if processing is expensive, check
		899	# checksum first
		900	if (1) {
		901	$md5 =
		902	join "\x00",
		903	$processversion,
		904	map {
		905	cf::cede_to_tick;
		906	($src->[$_], Digest::MD5::md5_hex $data[$_])
		907	} 0.. $#$src;
		908
		909
		910	my $dbmd5 = db_get cache => "$id/md5";
		911	if ($dbmd5 eq $md5) {
		912	db_put cache => "$id/meta", $meta;
		913
		914	return db_get cache => "$id/data";
		915	}
		916	}
		917
		918	my $t1 = EV::time;
		919	my $data = $process->(\@data);
		920	my $t2 = EV::time;
		921
		922	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		923
		924	db_put cache => "$id/data", $data;
		925	db_put cache => "$id/md5" , $md5;
		926	db_put cache => "$id/meta", $meta;
		927
		928	return $data;
		929	}
		930
		931	db_get cache => "$id/data"
		932	}
		933
		934	=item cf::datalog type => key => value, ...
		935
		936	Log a datalog packet of the given type with the given key-value pairs.
		937
		938	=cut
		939
		940	sub datalog($@) {
		941	my ($type, %kv) = @_;
		942	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	943	}
363		944
364	=back	945	=back
365		946
366	=cut	947	=cut
367		948
368	#############################################################################	949	#############################################################################
369		950
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489
490	#############################################################################
491
492	=head2 ATTACHABLE OBJECTS	951	=head2 ATTACHABLE OBJECTS
493		952
494	Many objects in crossfire are so-called attachable objects. That means you can	953	Many objects in deliantra are so-called attachable objects. That means you can
495	attach callbacks/event handlers (a collection of which is called an "attachment")	954	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	955	to it. All such attachable objects support the following methods.
497		956
498	In the following description, CLASS can be any of C<global>, C<object>	957	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	958	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	959	Deliantra).
501		960
502	=over 4	961	=over 4
503		962
504	=item $attachable->attach ($attachment, key => $value...)	963	=item $attachable->attach ($attachment, key => $value...)
505		964
…		…
549	=item cf::CLASS::attachment $name, ...	1008	=item cf::CLASS::attachment $name, ...
550		1009
551	Register an attachment by C<$name> through which attachable objects of the	1010	Register an attachment by C<$name> through which attachable objects of the
552	given CLASS can refer to this attachment.	1011	given CLASS can refer to this attachment.
553		1012
554	Some classes such as crossfire maps and objects can specify attachments	1013	Some classes such as deliantra maps and objects can specify attachments
555	that are attached at load/instantiate time, thus the need for a name.	1014	that are attached at load/instantiate time, thus the need for a name.
556		1015
557	These calls expect any number of the following handler/hook descriptions:	1016	These calls expect any number of the following handler/hook descriptions:
558		1017
559	=over 4	1018	=over 4
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	1078	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	1079	our @CB_MAP = ();
621		1080
622	my %attachment;	1081	my %attachment;
623		1082
		1083	sub cf::attachable::thawer_merge {
		1084	# simply override everything except _meta
		1085	local $_[0]{_meta};
		1086	%{$_[0]} = %{$_[1]};
		1087	}
		1088
624	sub _attach_cb($$$$) {	1089	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	1090	my ($registry, $event, $prio, $cb) = @_;
626		1091
627	use sort 'stable';	1092	use sort 'stable';
628		1093
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	1127	$registry = $CB_TYPE[$object_type] ||= [];
663		1128
664	} elsif ($type eq "subtype") {	1129	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	1130	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	1131	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1132	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		1133
669	} elsif ($type eq "package") {	1134	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	1135	my $pkg = shift @arg;
671		1136
672	while (my ($name, $id) = each %cb_id) {	1137	while (my ($name, $id) = each %cb_id) {
…		…
677		1142
678	} elsif (exists $cb_id{$type}) {	1143	} elsif (exists $cb_id{$type}) {
679	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1144	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
680		1145
681	} elsif (ref $type) {	1146	} elsif (ref $type) {
682	warn "attaching objects not supported, ignoring.\n";	1147	error "attaching objects not supported, ignoring.\n";
683		1148
684	} else {	1149	} else {
685	shift @arg;	1150	shift @arg;
686	warn "attach argument '$type' not supported, ignoring.\n";	1151	error "attach argument '$type' not supported, ignoring.\n";
687	}	1152	}
688	}	1153	}
689	}	1154	}
690		1155
691	sub _object_attach {	1156	sub _object_attach {
…		…
701	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
702	}	1167	}
703		1168
704	$obj->{$name} = \%arg;	1169	$obj->{$name} = \%arg;
705	} else {	1170	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	1171	info "object uses attachment '$name' which is not available, postponing.\n";
707	}	1172	}
708		1173
709	$obj->{_attachment}{$name} = undef;	1174	$obj->{_attachment}{$name} = undef;
710	}	1175	}
711		1176
…		…
713	if (ref $_[0]) {	1178	if (ref $_[0]) {
714	_object_attach @_;	1179	_object_attach @_;
715	} else {	1180	} else {
716	_attach shift->_attach_registry, @_;	1181	_attach shift->_attach_registry, @_;
717	}	1182	}
		1183	_recalc_want;
718	};	1184	};
719		1185
720	# all those should be optimised	1186	# all those should be optimised
721	sub cf::attachable::detach {	1187	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	1191	delete $obj->{_attachment}{$name};
726	reattach ($obj);	1192	reattach ($obj);
727	} else {	1193	} else {
728	Carp::croak "cannot, currently, detach class attachments";	1194	Carp::croak "cannot, currently, detach class attachments";
729	}	1195	}
		1196	_recalc_want;
730	};	1197	};
731		1198
732	sub cf::attachable::attached {	1199	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	1200	my ($obj, $name) = @_;
734		1201
…		…
749	";	1216	";
750	die if $@;	1217	die if $@;
751	}	1218	}
752		1219
753	our $override;	1220	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1221	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		1222
756	sub override {	1223	sub override {
757	$override = 1;	1224	$override = 1;
758	@invoke_results = ();	1225	@INVOKE_RESULTS = (@_);
759	}	1226	}
760		1227
761	sub do_invoke {	1228	sub do_invoke {
762	my $event = shift;	1229	my $event = shift;
763	my $callbacks = shift;	1230	my $callbacks = shift;
764		1231
765	@invoke_results = ();	1232	@INVOKE_RESULTS = ();
766		1233
767	local $override;	1234	local $override;
768		1235
769	for (@$callbacks) {	1236	for (@$callbacks) {
770	eval { &{$_->[1]} };	1237	eval { &{$_->[1]} };
771		1238
772	if ($@) {	1239	if ($@) {
773	warn "$@";
774	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1240	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
775	override;	1241	override;
776	}	1242	}
777		1243
778	return 1 if $override;	1244	return 1 if $override;
779	}	1245	}
780		1246
781	0	1247	0
782	}	1248	}
783		1249
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1250	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		1251
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1252	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		1253
788	Generate an object-specific event with the given arguments.	1254	Generate an object-specific event with the given arguments.
789		1255
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1256	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	1257	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	1258	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		1259
794	=back	1260	=back
795		1261
796	=cut	1262	=cut
797		1263
798	#############################################################################	1264	#############################################################################
799	# object support	1265	# object support
		1266
		1267	sub _object_equal($$);
		1268	sub _object_equal($$) {
		1269	my ($a, $b) = @_;
		1270
		1271	return 0 unless (ref $a) eq (ref $b);
		1272
		1273	if ("HASH" eq ref $a) {
		1274	my @ka = keys %$a;
		1275	my @kb = keys %$b;
		1276
		1277	return 0 if @ka != @kb;
		1278
		1279	for (0 .. $#ka) {
		1280	return 0 unless $ka[$_] eq $kb[$_];
		1281	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1282	}
		1283
		1284	} elsif ("ARRAY" eq ref $a) {
		1285
		1286	return 0 if @$a != @$b;
		1287
		1288	for (0 .. $#$a) {
		1289	return 0 unless _object_equal $a->[$_], $b->[$_];
		1290	}
		1291
		1292	} elsif ($a ne $b) {
		1293	return 0;
		1294	}
		1295
		1296	1
		1297	}
		1298
		1299	our $SLOW_MERGES;#d#
		1300	sub _can_merge {
		1301	my ($ob1, $ob2) = @_;
		1302
		1303	++$SLOW_MERGES;#d#
		1304
		1305	# we do the slow way here
		1306	return _object_equal $ob1, $ob2
		1307	}
800		1308
801	sub reattach {	1309	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1310	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1311	my ($obj) = @_;
		1312
		1313	# no longer needed after getting rid of delete_package?
		1314	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1315
805	my $registry = $obj->registry;	1316	my $registry = $obj->registry;
806		1317
807	@$registry = ();	1318	@$registry = ();
808		1319
…		…
813	for (@$attach) {	1324	for (@$attach) {
814	my ($klass, @attach) = @$_;	1325	my ($klass, @attach) = @$_;
815	_attach $registry, $klass, @attach;	1326	_attach $registry, $klass, @attach;
816	}	1327	}
817	} else {	1328	} else {
818	warn "object uses attachment '$name' that is not available, postponing.\n";	1329	info "object uses attachment '$name' that is not available, postponing.\n";
819	}	1330	}
820	}	1331	}
821	}	1332	}
822		1333
823	cf::attachable->attach (	1334	cf::attachable->attach (
824	prio => -1000000,	1335	prio => -1000000,
825	on_instantiate => sub {	1336	on_instantiate => sub {
826	my ($obj, $data) = @_;	1337	my ($obj, $data) = @_;
827		1338
828	$data = from_json $data;	1339	$data = decode_json $data;
829		1340
830	for (@$data) {	1341	for (@$data) {
831	my ($name, $args) = @$_;	1342	my ($name, $args) = @$_;
832		1343
833	$obj->attach ($name, %{$args || {} });	1344	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1360	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1361	my ($filename, $rdata, $objs) = @_;
851		1362
852	sync_job {	1363	sync_job {
853	if (length $$rdata) {	1364	if (length $$rdata) {
		1365	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1366	trace sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1367	$decname, length $$rdata, scalar @$objs
		1368	if $VERBOSE_IO;
856		1369
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1370	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1371	aio_chmod $fh, SAVE_MODE;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1372	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1373	if ($cf::USE_FSYNC) {
		1374	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;
860	aio_fsync $fh;	1375	aio_fsync $fh;
		1376	}
861	close $fh;	1377	aio_close $fh;
862		1378
863	if (@$objs) {	1379	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1380	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1381	aio_chmod $fh, SAVE_MODE;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1382	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1383	aio_write $fh, 0, (length $data), $data, 0;
		1384	if ($cf::USE_FSYNC) {
		1385	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;
868	aio_fsync $fh;	1386	aio_fsync $fh;
		1387	}
869	close $fh;	1388	aio_close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1389	aio_rename "$filename.pst~", "$filename.pst";
871	}	1390	}
872	} else {	1391	} else {
873	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
874	}	1393	}
875		1394
876	aio_rename "$filename~", $filename;	1395	aio_rename "$filename~", $filename;
		1396
		1397	$filename =~ s%/[^/]+$%%;
		1398	aio_pathsync $filename if $cf::USE_FSYNC;
877	} else {	1399	} else {
878	warn "FATAL: $filename~: $!\n";	1400	error "unable to save objects: $filename~: $!\n";
879	}	1401	}
880	} else {	1402	} else {
881	aio_unlink $filename;	1403	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1404	aio_unlink "$filename.pst";
883	}	1405	}
884	}	1406	};
885	}	1407	}
886		1408
887	sub object_freezer_as_string {	1409	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1410	my ($rdata, $objs) = @_;
889		1411
…		…
901	or return;	1423	or return;
902		1424
903	unless (aio_stat "$filename.pst") {	1425	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1426	(aio_load "$filename.pst", $av) >= 0
905	or return;	1427	or return;
		1428
906	$av = eval { (Storable::thaw $av)->{objs} };	1429	my $st = eval { Coro::Storable::thaw $av };
		1430	$av = $st->{objs};
907	}	1431	}
908		1432
		1433	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1434	trace sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1435	$decname, length $data, scalar @{$av || []}
		1436	if $VERBOSE_IO;
		1437
911	return ($data, $av);	1438	($data, $av)
912	}	1439	}
		1440
		1441	=head2 COMMAND CALLBACKS
		1442
		1443	=over 4
		1444
		1445	=cut
913		1446
914	#############################################################################	1447	#############################################################################
915	# command handling &c	1448	# command handling &c
916		1449
917	=item cf::register_command $name => \&callback($ob,$args);	1450	=item cf::register_command $name => \&callback($ob,$args)
918		1451
919	Register a callback for execution when the client sends the user command	1452	Register a callback for execution when the client sends the user command
920	$name.	1453	$name.
921		1454
922	=cut	1455	=cut
…		…
928	#warn "registering command '$name/$time' to '$caller'";	1461	#warn "registering command '$name/$time' to '$caller'";
929		1462
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1463	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1464	}
932		1465
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1466	=item cf::register_extcmd $name => \&callback($pl,@args)
934		1467
935	Register a callbackf ro execution when the client sends an extcmd packet.	1468	Register a callback for execution when the client sends an (synchronous)
		1469	extcmd packet. Ext commands will be processed in the order they are
		1470	received by the server, like other user commands. The first argument is
		1471	the logged-in player. Ext commands can only be processed after a player
		1472	has logged in successfully.
936		1473
937	If the callback returns something, it is sent back as if reply was being	1474	The values will be sent back to the client.
938	called.
939		1475
940	=cut	1476	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
941		1477
		1478	Same as C<cf::register_extcmd>, but instead of returning values, the
		1479	callback needs to clal the C<$reply> function.
		1480
		1481	=item cf::register_exticmd $name => \&callback($ns,@args)
		1482
		1483	Register a callback for execution when the client sends an (asynchronous)
		1484	exticmd packet. Exti commands are processed by the server as soon as they
		1485	are received, i.e. out of order w.r.t. other commands. The first argument
		1486	is a client socket. Exti commands can be received anytime, even before
		1487	log-in.
		1488
		1489	The values will be sent back to the client.
		1490
		1491	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1492
		1493	Same as C<cf::register_extcmd>, but instead of returning values, the
		1494	callback needs to clal the C<$reply> function.
		1495
		1496	=cut
		1497
942	sub register_extcmd {	1498	sub register_extcmd($$) {
943	my ($name, $cb) = @_;	1499	my ($name, $cb) = @_;
944		1500
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1501	$EXTCMD{$name} = $cb;
949	}	1502	}
		1503
		1504	sub register_async_extcmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTACMD{$name} = $cb;
		1508	}
		1509
		1510	sub register_exticmd($$) {
		1511	my ($name, $cb) = @_;
		1512
		1513	$EXTICMD{$name} = $cb;
		1514	}
		1515
		1516	sub register_async_exticmd($$) {
		1517	my ($name, $cb) = @_;
		1518
		1519	$EXTIACMD{$name} = $cb;
		1520	}
		1521
		1522	use File::Glob ();
950		1523
951	cf::player->attach (	1524	cf::player->attach (
952	on_command => sub {	1525	on_unknown_command => sub {
953	my ($pl, $name, $params) = @_;	1526	my ($pl, $name, $params) = @_;
954		1527
955	my $cb = $COMMAND{$name}	1528	my $cb = $COMMAND{$name}
956	or return;	1529	or return;
957		1530
…		…
962	cf::override;	1535	cf::override;
963	},	1536	},
964	on_extcmd => sub {	1537	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1538	my ($pl, $buf) = @_;
966		1539
967	my $msg = eval { from_json $buf };	1540	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1541
969	if (ref $msg) {	1542	if (ref $msg) {
		1543	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1544
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1545	if (my $cb = $EXTACMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1546	$cb->(
972	$pl->ext_reply ($msg->{msgid}, %reply);	1547	$pl,
		1548	sub {
		1549	$pl->ext_msg ("reply-$reply", @_)
		1550	if $reply;
		1551	},
		1552	@payload
		1553	);
		1554	} else {
		1555	my @reply;
		1556
		1557	if (my $cb = $EXTCMD{$type}) {
		1558	@reply = $cb->($pl, @payload);
973	}	1559	}
		1560
		1561	$pl->ext_msg ("reply-$reply", @reply)
		1562	if $reply;
974	}	1563	}
		1564
975	} else {	1565	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1566	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1567	}
978		1568
979	cf::override;	1569	cf::override;
980	},	1570	},
981	);	1571	);
982		1572
983	sub register {	1573	# "readahead" all extensions
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	1574	sub cache_extensions {
990	my ($path) = @_;	1575	my $grp = IO::AIO::aio_group;
991		1576
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
993	my $base = $1;	1578	for (grep /\.ext$/, @{$_[0]}) {
994	my $pkg = $1;	1579	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}	1580	}
1042	}	1581	};
1043		1582
1044	# remove extcmds	1583	$grp
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1584	}
1046	delete $EXTCMD{$name};
1047	}
1048		1585
1049	if (my $cb = $pkg->can ("unload")) {	1586	sub _ext_cfg_reg($$$$) {
1050	eval {	1587	my ($rvar, $varname, $cfgname, $default) = @_;
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055		1588
1056	Symbol::delete_package $pkg;	1589	$cfgname = lc $varname
		1590	unless length $cfgname;
		1591
		1592	$EXT_CFG{$cfgname} = [$rvar, $default];
		1593
		1594	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1057	}	1595	}
1058		1596
1059	sub load_extensions {	1597	sub load_extensions {
		1598	info "loading extensions...";
		1599
		1600	%EXT_CFG = ();
		1601
		1602	cf::sync_job {
		1603	my %todo;
		1604
1060	for my $ext (<$LIBDIR/*.ext>) {	1605	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1606	next unless -r $path;
1062	eval {	1607
1063	load_extension $ext;	1608	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1609	my $base = $1;
		1610	my $pkg = $1;
		1611	$pkg =~ s/[^[:word:]]/_/g;
		1612	$pkg = "ext::$pkg";
		1613
		1614	open my $fh, "<:utf8", $path
		1615	or die "$path: $!";
		1616
		1617	my $source = do { local $/; <$fh> };
		1618
		1619	my %ext = (
		1620	path => $path,
		1621	base => $base,
		1622	pkg => $pkg,
		1623	);
		1624
		1625	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1626	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1627
		1628	$ext{source} =
		1629	"package $pkg; use common::sense;\n"
		1630	. "#line 1 \"$path\"\n{\n"
		1631	. $source
		1632	. "\n};\n1";
		1633
		1634	$todo{$base} = \%ext;
		1635	}
		1636
		1637	my $pass = 0;
		1638	my %done;
		1639	while (%todo) {
		1640	my $progress;
		1641
		1642	++$pass;
		1643
		1644	ext:
		1645	while (my ($k, $v) = each %todo) {
		1646	for (split /,\s*/, $v->{meta}{depends}) {
		1647	next ext
		1648	unless exists $done{$_};
		1649	}
		1650
		1651	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1652
		1653	my $source = $v->{source};
		1654
		1655	# support "CONF varname :confname = default" pseudo-statements
		1656	$source =~ s{
		1657	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1658	}{
		1659	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1660	}gmxe;
		1661
		1662	my $active = eval $source;
		1663
		1664	if (length $@) {
		1665	error "$v->{path}: $@\n";
		1666
		1667	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1668	if exists $v->{meta}{mandatory};
		1669
		1670	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1671	delete $todo{$k};
		1672	} else {
		1673	$done{$k} = delete $todo{$k};
		1674	push @EXTS, $v->{pkg};
		1675	$progress = 1;
		1676
		1677	info "$v->{base}: extension inactive.\n"
		1678	unless $active;
		1679	}
1064	1	1680	}
1065	} or warn "$ext not loaded: $@";	1681
		1682	unless ($progress) {
		1683	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1684
		1685	while (my ($k, $v) = each %todo) {
		1686	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1687	if exists $v->{meta}{mandatory};
		1688	}
		1689
		1690	last;
		1691	}
		1692	}
1066	}	1693	};
1067	}	1694	}
1068		1695
1069	#############################################################################	1696	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1697
1072	*cf::mapsupport::on_clean = sub {	1698	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1699
1085	=head2 CORE EXTENSIONS	1700	=head2 CORE EXTENSIONS
1086		1701
1087	Functions and methods that extend core crossfire objects.	1702	Functions and methods that extend core deliantra objects.
1088		1703
1089	=cut	1704	=cut
1090		1705
1091	package cf::player;	1706	package cf::player;
1092		1707
…		…
1094		1709
1095	=head3 cf::player	1710	=head3 cf::player
1096		1711
1097	=over 4	1712	=over 4
1098		1713
		1714	=item cf::player::num_playing
		1715
		1716	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1717
		1718	=cut
		1719
		1720	sub num_playing {
		1721	scalar grep
		1722	$_->ob->map
		1723	&& !$_->hidden
		1724	&& !$_->ob->flag (cf::FLAG_WIZ),
		1725	cf::player::list
		1726	}
		1727
1099	=item cf::player::find $login	1728	=item cf::player::find $login
1100		1729
1101	Returns the given player object, loading it if necessary (might block).	1730	Returns the given player object, loading it if necessary (might block).
1102		1731
1103	=cut	1732	=cut
1104		1733
1105	sub playerdir($) {	1734	sub playerdir($) {
1106	cf::localdir	1735	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1736	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1737	}
1112		1738
1113	sub path($) {	1739	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1740	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1741
1116	(playerdir $login) . "/$login.pl"	1742	(playerdir $login) . "/playerdata"
1117	}	1743	}
1118		1744
1119	sub find_active($) {	1745	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1746	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1747	and $cf::PLAYER{$_[0]}->active
…		…
1124		1750
1125	sub exists($) {	1751	sub exists($) {
1126	my ($login) = @_;	1752	my ($login) = @_;
1127		1753
1128	$cf::PLAYER{$login}	1754	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1755	or !aio_stat path $login
1130	}	1756	}
1131		1757
1132	sub find($) {	1758	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1759	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1760	my $login = $_[0];
1135		1761
1136	my $guard = cf::lock_acquire "user_find:$login";	1762	my $guard = cf::lock_acquire "user_find:$login";
1137		1763
1138	$cf::PLAYER{$_[0]} || do {	1764	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1765	# rename old playerfiles to new ones
		1766	#TODO: remove when no longer required
		1767	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1768	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1769	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1770	aio_unlink +(playerdir $login) . "/$login.pl";
		1771
		1772	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1773	or return;
		1774
		1775	my $pl = cf::player::load_pl $f
		1776	or return;
		1777
		1778	local $cf::PLAYER_LOADING{$login} = $pl;
		1779	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1780	$cf::PLAYER{$login} = $pl
1142	}	1781	}
1143	}	1782	}
1144	}	1783	}
		1784
		1785	cf::player->attach (
		1786	on_load => sub {
		1787	my ($pl, $path) = @_;
		1788
		1789	# restore slots saved in save, below
		1790	my $slots = delete $pl->{_slots};
		1791
		1792	$pl->ob->current_weapon ($slots->[0]);
		1793	$pl->combat_ob ($slots->[1]);
		1794	$pl->ranged_ob ($slots->[2]);
		1795	},
		1796	);
1145		1797
1146	sub save($) {	1798	sub save($) {
1147	my ($pl) = @_;	1799	my ($pl) = @_;
1148		1800
1149	return if $pl->{deny_save};	1801	return if $pl->{deny_save};
…		…
1154	return if $pl->{deny_save};	1806	return if $pl->{deny_save};
1155		1807
1156	aio_mkdir playerdir $pl, 0770;	1808	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1809	$pl->{last_save} = $cf::RUNTIME;
1158		1810
		1811	cf::get_slot 0.01;
		1812
		1813	# save slots, to be restored later
		1814	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1815
1159	$pl->save_pl ($path);	1816	$pl->save_pl ($path);
1160	Coro::cede;	1817	cf::cede_to_tick;
1161	}	1818	}
1162		1819
1163	sub new($) {	1820	sub new($) {
1164	my ($login) = @_;	1821	my ($login) = @_;
1165		1822
…		…
1171	$cf::PLAYER{$login} = $self;	1828	$cf::PLAYER{$login} = $self;
1172		1829
1173	$self	1830	$self
1174	}	1831	}
1175		1832
		1833	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1834
		1835	=cut
		1836
		1837	sub send_msg {
		1838	my $ns = shift->ns
		1839	or return;
		1840	$ns->send_msg (@_);
		1841	}
		1842
1176	=item $pl->quit_character	1843	=item $pl->quit_character
1177		1844
1178	Nukes the player without looking back. If logged in, the connection will	1845	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1846	be destroyed. May block for a long time.
1180		1847
1181	=cut	1848	=cut
1182		1849
1183	sub quit_character {	1850	sub quit_character {
1184	my ($pl) = @_;	1851	my ($pl) = @_;
1185		1852
		1853	my $name = $pl->ob->name;
		1854
1186	$pl->{deny_save} = 1;	1855	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1856	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1188		1857
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1858	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1190	$pl->deactivate;	1859	$pl->deactivate;
		1860
		1861	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1191	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1862	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1863	ext::highscore::check ($pl->ob);
		1864
1192	$pl->ns->destroy if $pl->ns;	1865	$pl->ns->destroy if $pl->ns;
1193		1866
1194	my $path = playerdir $pl;	1867	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1868	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1869	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1870	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1871	$pl->destroy;
		1872
		1873	my $prefix = qr<^~\Q$name\E/>;
		1874
		1875	# nuke player maps
		1876	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1877
1199	IO::AIO::aio_rmtree $temp;	1878	IO::AIO::aio_rmtree $temp;
		1879	}
		1880
		1881	=item $pl->kick
		1882
		1883	Kicks a player out of the game. This destroys the connection.
		1884
		1885	=cut
		1886
		1887	sub kick {
		1888	my ($pl, $kicker) = @_;
		1889
		1890	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1891	$pl->killer ("kicked");
		1892	$pl->ns->destroy;
1200	}	1893	}
1201		1894
1202	=item cf::player::list_logins	1895	=item cf::player::list_logins
1203		1896
1204	Returns am arrayref of all valid playernames in the system, can take a	1897	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1898	while and may block, so not sync_job-capable, ever.
1206		1899
1207	=cut	1900	=cut
1208		1901
1209	sub list_logins {	1902	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1903	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1904	or return [];
1212		1905
1213	my @logins;	1906	my @logins;
1214		1907
1215	for my $login (@$dirs) {	1908	for my $login (@$dirs) {
		1909	my $path = path $login;
		1910
		1911	# a .pst is a dead give-away for a valid player
		1912	# if no pst file found, open and chekc for blocked users
		1913	if (aio_stat "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1914	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1915	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1916	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1917	}
1219		1918
1220	utf8::decode $login;	1919	utf8::decode $login;
1221	push @logins, $login;	1920	push @logins, $login;
1222	}	1921	}
1223		1922
1224	\@logins	1923	\@logins
1225	}	1924	}
1226		1925
1227	=item $player->maps	1926	=item $player->maps
1228		1927
		1928	=item cf::player::maps $login
		1929
1229	Returns an arrayref of cf::path's of all maps that are private for this	1930	Returns an arrayref of map paths that are private for this
1230	player. May block.	1931	player. May block.
1231		1932
1232	=cut	1933	=cut
1233		1934
1234	sub maps($) {	1935	sub maps($) {
1235	my ($pl) = @_;	1936	my ($pl) = @_;
		1937
		1938	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1939
1237	my $files = aio_readdir playerdir $pl	1940	my $files = aio_readdir playerdir $pl
1238	or return;	1941	or return;
1239		1942
1240	my @paths;	1943	my @paths;
1241		1944
1242	for (@$files) {	1945	for (@$files) {
1243	utf8::decode $_;	1946	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1947	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1948	next unless /^$PATH_SEP/o;
1246		1949
1247	s/$PATH_SEP/\//g;	1950	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1951	}
1250		1952
1251	\@paths	1953	\@paths
1252	}	1954	}
1253		1955
		1956	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1957
		1958	Expand deliantra pod fragments into protocol xml.
		1959
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1960	=item $player->ext_msg ($type, @msg)
1255		1961
1256	Sends an ext reply to the player.	1962	Sends an ext event to the client.
1257		1963
1258	=cut	1964	=cut
1259		1965
1260	sub ext_reply($$$%) {	1966	sub ext_msg($$@) {
1261	my ($self, $id, %msg) = @_;	1967	my ($self, $type, @msg) = @_;
1262		1968
1263	$msg{msgid} = $id;	1969	$self->ns->ext_msg ($type, @msg);
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1970	}
1267		1971
1268	package cf;	1972	=head3 cf::region
		1973
		1974	=over 4
		1975
		1976	=cut
		1977
		1978	package cf::region;
		1979
		1980	=item cf::region::find_by_path $path
		1981
		1982	Tries to decuce the likely region for a map knowing only its path.
		1983
		1984	=cut
		1985
		1986	sub find_by_path($) {
		1987	my ($path) = @_;
		1988
		1989	$path =~ s/^~[^\/]*//; # skip ~login
		1990
		1991	my ($match, $specificity);
		1992
		1993	for my $region (list) {
		1994	if ($region->{match} && $path =~ $region->{match}) {
		1995	($match, $specificity) = ($region, $region->specificity)
		1996	if $region->specificity > $specificity;
		1997	}
		1998	}
		1999
		2000	$match
		2001	}
1269		2002
1270	=back	2003	=back
1271
1272		2004
1273	=head3 cf::map	2005	=head3 cf::map
1274		2006
1275	=over 4	2007	=over 4
1276		2008
…		…
1279	package cf::map;	2011	package cf::map;
1280		2012
1281	use Fcntl;	2013	use Fcntl;
1282	use Coro::AIO;	2014	use Coro::AIO;
1283		2015
		2016	use overload
		2017	'""' => \&as_string,
		2018	fallback => 1;
		2019
1284	our $MAX_RESET = 3600;	2020	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	2021	our $DEFAULT_RESET = 3000;
1286		2022
1287	sub generate_random_map {	2023	sub generate_random_map {
		2024	my ($self, $rmp) = @_;
		2025
		2026	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2027
		2028	$self->_create_random_map ($rmp);
		2029	}
		2030
		2031	=item cf::map->register ($regex, $prio)
		2032
		2033	Register a handler for the map path matching the given regex at the
		2034	givne priority (higher is better, built-in handlers have priority 0, the
		2035	default).
		2036
		2037	=cut
		2038
		2039	sub register {
		2040	my (undef, $regex, $prio) = @_;
		2041	my $pkg = caller;
		2042
		2043	push @{"$pkg\::ISA"}, __PACKAGE__;
		2044
		2045	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2046	}
		2047
		2048	# also paths starting with '/'
		2049	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2050
		2051	sub thawer_merge {
		2052	my ($self, $merge) = @_;
		2053
		2054	# we have to keep some variables in memory intact
		2055	local $self->{path};
		2056	local $self->{load_path};
		2057
		2058	$self->SUPER::thawer_merge ($merge);
		2059	}
		2060
		2061	sub normalise {
1288	my ($path, $rmp) = @_;	2062	my ($path, $base) = @_;
1289		2063
1290	# mit "rum" bekleckern, nicht	2064	$path = "$path"; # make sure it's a string
1291	cf::map::_create_random_map	2065
		2066	$path =~ s/\.map$//;
		2067
		2068	# map plan:
		2069	#
		2070	# /! non-realised random map exit (special hack!)
		2071	# {... are special paths that are not being touched
		2072	# ?xxx/... are special absolute paths
		2073	# ?random/... random maps
		2074	# /... normal maps
		2075	# ~user/... per-player map of a specific user
		2076
		2077	$path =~ s/$PATH_SEP/\//go;
		2078
		2079	# treat it as relative path if it starts with
		2080	# something that looks reasonable
		2081	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2082	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2083
		2084	$base =~ s{[^/]+/?$}{};
		2085	$path = "$base/$path";
		2086	}
		2087
		2088	for ($path) {
		2089	redo if s{/\.?/}{/};
		2090	redo if s{/[^/]+/\.\./}{/};
		2091	}
		2092
1292	$path,	2093	$path
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})
1304	}	2094	}
1305		2095
1306	# and all this just because we cannot iterate over	2096	sub new_from_path {
1307	# all maps in C++...	2097	my (undef, $path, $base) = @_;
1308	sub change_all_map_light {	2098
		2099	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2100
		2101	$path = normalise $path, $base;
		2102
		2103	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2104	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2105	my $self = bless cf::map::new, $pkg;
		2106	$self->{path} = $path; $self->path ($path);
		2107	$self->init; # pass $1 etc.
		2108	return $self;
		2109	}
		2110	}
		2111
		2112	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2113	()
		2114	}
		2115
		2116	# may re-bless or do other evil things
		2117	sub init {
1309	my ($change) = @_;	2118	my ($self) = @_;
1310		2119
1311	$_->change_map_light ($change)	2120	$self
1312	for grep $_->outdoor, values %cf::MAP;
1313	}	2121	}
1314		2122
		2123	sub as_string {
		2124	my ($self) = @_;
		2125
		2126	"$self->{path}"
		2127	}
		2128
		2129	# the displayed name, this is a one way mapping
		2130	sub visible_name {
		2131	&as_string
		2132	}
		2133
		2134	# the original (read-only) location
		2135	sub load_path {
		2136	my ($self) = @_;
		2137
		2138	"$MAPDIR/$self->{path}.map"
		2139	}
		2140
		2141	# the temporary/swap location
		2142	sub save_path {
		2143	my ($self) = @_;
		2144
		2145	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2146	"$TMPDIR/$path.map"
		2147	}
		2148
		2149	# the unique path, undef == no special unique path
		2150	sub uniq_path {
		2151	my ($self) = @_;
		2152
		2153	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2154	"$UNIQUEDIR/$path"
		2155	}
		2156
		2157	sub decay_objects {
		2158	my ($self) = @_;
		2159
		2160	return if $self->{deny_reset};
		2161
		2162	$self->do_decay_objects;
		2163	}
		2164
		2165	sub unlink_save {
		2166	my ($self) = @_;
		2167
		2168	utf8::encode (my $save = $self->save_path);
		2169	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2170	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2171	}
		2172
1315	sub try_load_header($) {	2173	sub load_header_from($) {
1316	my ($path) = @_;	2174	my ($self, $path) = @_;
1317		2175
1318	utf8::encode $path;	2176	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	2177	my $f = new_from_file cf::object::thawer $path
1320	or return;	2178	or return;
1321		2179
1322	my $map = cf::map::new	2180	$self->_load_header ($f)
1323	or return;	2181	or return;
1324		2182
1325	# for better error messages only, will be overwritten	2183	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	2184	$f->resolve_delayed_derefs;
1327		2185
1328	$map->load_header ($path)	2186	$self->{load_path} = $path;
		2187
		2188	1
		2189	}
		2190
		2191	# used to laod the header of an original map
		2192	sub load_header_orig {
		2193	my ($self) = @_;
		2194
		2195	$self->load_header_from ($self->load_path)
		2196	}
		2197
		2198	# used to laod the header of an instantiated map
		2199	sub load_header_temp {
		2200	my ($self) = @_;
		2201
		2202	$self->load_header_from ($self->save_path)
		2203	}
		2204
		2205	# called after loading the header from an instantiated map
		2206	sub prepare_temp {
		2207	my ($self) = @_;
		2208
		2209	$self->last_access ((delete $self->{last_access})
		2210	|| $cf::RUNTIME); #d#
		2211	# safety
		2212	$self->{instantiate_time} = $cf::RUNTIME
		2213	if $self->{instantiate_time} > $cf::RUNTIME;
		2214	}
		2215
		2216	# called after loading the header from an original map
		2217	sub prepare_orig {
		2218	my ($self) = @_;
		2219
		2220	$self->{load_original} = 1;
		2221	$self->{instantiate_time} = $cf::RUNTIME;
		2222	$self->last_access ($cf::RUNTIME);
		2223	$self->instantiate;
		2224	}
		2225
		2226	sub load_header {
		2227	my ($self) = @_;
		2228
		2229	if ($self->load_header_temp) {
		2230	$self->prepare_temp;
		2231	} else {
		2232	$self->load_header_orig
1329	or return;	2233	or return;
		2234	$self->prepare_orig;
		2235	}
1330		2236
1331	$map->{load_path} = $path;	2237	$self->{deny_reset} = 1
		2238	if $self->no_reset;
1332		2239
1333	$map	2240	$self->default_region (cf::region::find_by_path $self->{path})
		2241	unless $self->default_region;
		2242
		2243	1
1334	}	2244	}
1335		2245
1336	sub find;	2246	sub find;
1337	sub find {	2247	sub find {
1338	my ($path, $origin) = @_;	2248	my ($path, $origin) = @_;
1339		2249
1340	#warn "find<$path,$origin>\n";#d#	2250	cf::cede_to_tick;
1341		2251
1342	$path = new cf::path $path, $origin && $origin->path;	2252	$path = normalise $path, $origin;
1343	my $key = $path->as_string;
1344		2253
1345	cf::lock_wait "map_find:$key";	2254	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1346
1347	$cf::MAP{$key} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	2255	my $guard2 = cf::lock_acquire "map_find:$path";
1349		2256
1350	# do it the slow way	2257	$cf::MAP{$path} || do {
1351	my $map = try_load_header $path->save_path;	2258	my $map = new_from_path cf::map $path
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	2259	or return;
1369		2260
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	2261	$map->{last_save} = $cf::RUNTIME;
1382		2262
1383	Coro::cede;	2263	$map->load_header
		2264	or return;
1384		2265
1385	if ($map->should_reset) {	2266	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2267	# doing this can freeze the server in a sync job, obviously
		2268	#$cf::WAIT_FOR_TICK->wait;
		2269	undef $guard2;
		2270	undef $guard1;
1386	$map->reset;	2271	$map->reset;
1387	undef $guard;
1388	$map = find $path	2272	return find $path;
1389	or return;
1390	}	2273	}
1391		2274
1392	$cf::MAP{$key} = $map	2275	$cf::MAP{$path} = $map
1393	}	2276	}
1394	}	2277	}
		2278
		2279	sub pre_load { }
		2280	#sub post_load { } # XS
1395		2281
1396	sub load {	2282	sub load {
1397	my ($self) = @_;	2283	my ($self) = @_;
1398		2284
		2285	local $self->{deny_reset} = 1; # loading can take a long time
		2286
1399	my $path = $self->{path};	2287	my $path = $self->{path};
		2288
		2289	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2290	my $guard = cf::lock_acquire "map_data:$path";
1401		2291
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2292	return unless $self->valid;
		2293	return unless $self->state == cf::MAP_SWAPPED;
1403		2294
1404	$self->in_memory (cf::MAP_LOADING);
1405
1406	$self->alloc;	2295	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2296
		2297	$self->pre_load;
		2298	cf::cede_to_tick;
		2299
		2300	if (exists $self->{load_path}) {
		2301	my $f = new_from_file cf::object::thawer $self->{load_path};
		2302	$f->skip_block;
		2303	$self->_load_objects ($f)
1408	or return;	2304	or return;
1409		2305
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2306	$self->post_load_original
1411	if delete $self->{load_original};	2307	if delete $self->{load_original};
1412		2308
1413	if (my $uniq = $path->uniq_path) {	2309	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2310	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2311	unless (aio_stat $uniq) {
		2312	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2313	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2314	$self->_load_objects ($f);
		2315	$f->resolve_delayed_derefs;
		2316	}
		2317	}
1418	}	2318	}
1419	}
1420		2319
1421	Coro::cede;	2320	$f->resolve_delayed_derefs;
		2321	} else {
		2322	$self->post_load_original
		2323	if delete $self->{load_original};
		2324	}
1422		2325
		2326	$self->state (cf::MAP_INACTIVE);
		2327
		2328	cf::cede_to_tick;
1423	# now do the right thing for maps	2329	# now do the right thing for maps
1424	$self->link_multipart_objects;	2330	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2331	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2332	unless $self->difficulty;
1436	$self->activate;	2333	cf::cede_to_tick;
		2334
		2335	unless ($self->{deny_activate}) {
		2336	$self->decay_objects;
		2337	$self->fix_auto_apply;
		2338	$self->update_buttons;
		2339	cf::cede_to_tick;
		2340	#$self->activate; # no longer activate maps automatically
		2341	}
		2342
		2343	$self->{last_save} = $cf::RUNTIME;
		2344	$self->last_access ($cf::RUNTIME);
		2345	}
		2346
		2347	$self->post_load;
		2348
1437	}	2349	1
1438
1439	Coro::cede;
1440
1441	$self->in_memory (cf::MAP_IN_MEMORY);
1442	}	2350	}
1443		2351
1444	# find and load all maps in the 3x3 area around a map	2352	# customize the map for a given player, i.e.
1445	sub load_diag {	2353	# return the _real_ map. used by e.g. per-player
1446	my ($map) = @_;	2354	# maps to change the path to ~playername/mappath
		2355	sub customise_for {
		2356	my ($self, $ob) = @_;
1447		2357
1448	my @diag; # diagonal neighbours	2358	return find "~" . $ob->name . "/" . $self->{path}
		2359	if $self->per_player;
1449		2360
1450	for (0 .. 3) {	2361	# return find "?party/" . $ob->name . "/" . $self->{path}
1451	my $neigh = $map->tile_path ($_)	2362	# if $self->per_party;
1452	or next;
1453	$neigh = find $neigh, $map
1454	or next;
1455	$neigh->load;
1456		2363
1457	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2364	$self
1458	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1459	}
1460
1461	for (@diag) {
1462	my $neigh = find @$_
1463	or next;
1464	$neigh->load;
1465	}
1466	}	2365	}
1467		2366
1468	sub find_sync {	2367	sub find_sync {
1469	my ($path, $origin) = @_;	2368	my ($path, $origin) = @_;
1470		2369
1471	cf::sync_job { find $path, $origin }	2370	# it's a bug to call this from the main context
		2371	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2372	if $Coro::current == $Coro::main;
		2373
		2374	find $path, $origin
1472	}	2375	}
1473		2376
1474	sub do_load_sync {	2377	sub do_load_sync {
1475	my ($map) = @_;	2378	my ($map) = @_;
1476		2379
1477	cf::sync_job { $map->load };	2380	# it's a bug to call this from the main context
		2381	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2382	if $Coro::current == $Coro::main;
		2383
		2384	$map->load;
1478	}	2385	}
1479		2386
1480	our %MAP_PREFETCH;	2387	our %MAP_PREFETCH;
		2388	our $MAP_PREFETCHER = undef;
		2389
		2390	sub find_async {
		2391	my ($path, $origin, $load) = @_;
		2392
		2393	$path = normalise $path, $origin;
		2394
		2395	if (my $map = $cf::MAP{$path}) {
		2396	return $map if !$load || $map->linkable;
		2397	}
		2398
		2399	$MAP_PREFETCH{$path} |= $load;
		2400
1481	our $MAP_PREFETCHER = Coro::async {	2401	$MAP_PREFETCHER ||= cf::async {
1482	while () {	2402	$Coro::current->{desc} = "map prefetcher";
		2403
1483	while (%MAP_PREFETCH) {	2404	while (%MAP_PREFETCH) {
1484	my $key = each %MAP_PREFETCH	2405	for my $k (keys %MAP_PREFETCH) {
1485	or next;	2406	if (my $map = find $k) {
		2407	$map->load if $MAP_PREFETCH{$k};
		2408	}
		2409
1486	my $path = delete $MAP_PREFETCH{$key};	2410	delete $MAP_PREFETCH{$k};
1487
1488	my $map = find $path
1489	or next;
1490	$map->load;
1491	}	2411	}
1492	Coro::schedule;	2412	}
		2413	undef $MAP_PREFETCHER;
1493	}	2414	};
1494	};
1495
1496	sub find_async {
1497	my ($path, $origin) = @_;
1498
1499	$path = new cf::path $path, $origin && $origin->path;
1500	my $key = $path->as_string;
1501
1502	if (my $map = $cf::MAP{$key}) {
1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504	}
1505
1506	$MAP_PREFETCH{$key} = $path;
1507	$MAP_PREFETCHER->ready;	2415	$MAP_PREFETCHER->prio (6);
1508		2416
1509	()	2417	()
		2418	}
		2419
		2420	# common code, used by both ->save and ->swapout
		2421	sub _save {
		2422	my ($self) = @_;
		2423
		2424	$self->{last_save} = $cf::RUNTIME;
		2425
		2426	return unless $self->dirty;
		2427
		2428	my $save = $self->save_path; utf8::encode $save;
		2429	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2430
		2431	$self->{load_path} = $save;
		2432
		2433	return if $self->{deny_save};
		2434
		2435	local $self->{last_access} = $self->last_access;#d#
		2436
		2437	cf::async {
		2438	$Coro::current->{desc} = "map player save";
		2439	$_->contr->save for $self->players;
		2440	};
		2441
		2442	cf::get_slot 0.02;
		2443
		2444	if ($uniq) {
		2445	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2446	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2447	} else {
		2448	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2449	}
1510	}	2450	}
1511		2451
1512	sub save {	2452	sub save {
1513	my ($self) = @_;	2453	my ($self) = @_;
1514		2454
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2455	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2456
1517	$self->{last_save} = $cf::RUNTIME;	2457	$self->_save;
1518
1519	return unless $self->dirty;
1520
1521	my $save = $self->{path}->save_path; utf8::encode $save;
1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1523
1524	$self->{load_path} = $save;
1525
1526	return if $self->{deny_save};
1527
1528	local $self->{last_access} = $self->last_access;#d#
1529
1530	cf::async {
1531	$_->contr->save for $self->players;
1532	};
1533
1534	if ($uniq) {
1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {
1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1539	}
1540	}	2458	}
1541		2459
1542	sub swap_out {	2460	sub swap_out {
1543	my ($self) = @_;	2461	my ($self) = @_;
1544		2462
1545	# save first because save cedes
1546	$self->save;
1547
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2463	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2464
		2465	return if !$self->linkable;
		2466	return if $self->{deny_save};
1550	return if $self->players;	2467	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;
1552	return if $self->{deny_save};
1553		2468
		2469	# first deactivate the map and "unlink" it from the core
		2470	$self->deactivate;
		2471	$_->clear_links_to ($self) for values %cf::MAP;
		2472	$self->state (cf::MAP_SWAPPED);
		2473
		2474	# then atomically save
		2475	$self->_save;
		2476
		2477	# then free the map
1554	$self->clear;	2478	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2479	}
1557		2480
1558	sub reset_at {	2481	sub reset_at {
1559	my ($self) = @_;	2482	my ($self) = @_;
1560		2483
1561	# TODO: safety, remove and allow resettable per-player maps	2484	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->{path}{user_rel};
1563	return 1e99 if $self->{deny_reset};	2485	return 1e99 if $self->{deny_reset};
1564		2486
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2487	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2488	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2489
…		…
1572	my ($self) = @_;	2494	my ($self) = @_;
1573		2495
1574	$self->reset_at <= $cf::RUNTIME	2496	$self->reset_at <= $cf::RUNTIME
1575	}	2497	}
1576		2498
1577	sub unlink_save {
1578	my ($self) = @_;
1579
1580	utf8::encode (my $save = $self->{path}->save_path);
1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1583	}
1584
1585	sub rename {
1586	my ($self, $new_path) = @_;
1587
1588	$self->unlink_save;
1589
1590	delete $cf::MAP{$self->path};
1591	$self->{path} = new cf::path $new_path;
1592	$self->path ($self->{path}->as_string);
1593	$cf::MAP{$self->path} = $self;
1594
1595	$self->save;
1596	}
1597
1598	sub reset {	2499	sub reset {
1599	my ($self) = @_;	2500	my ($self) = @_;
1600		2501
1601	my $lock = cf::lock_acquire "map_data:" . $self->path;	2502	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2503
1603	return if $self->players;	2504	return if $self->players;
1604	return if $self->{path}{user_rel};#d#
1605		2505
1606	warn "resetting map ", $self->path;#d#	2506	cf::trace "resetting map ", $self->path, "\n";
		2507
		2508	$self->state (cf::MAP_SWAPPED);
		2509
		2510	# need to save uniques path
		2511	unless ($self->{deny_save}) {
		2512	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2513
		2514	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2515	if $uniq;
		2516	}
1607		2517
1608	delete $cf::MAP{$self->path};	2518	delete $cf::MAP{$self->path};
1609		2519
		2520	$self->deactivate;
1610	$_->clear_links_to ($self) for values %cf::MAP;	2521	$_->clear_links_to ($self) for values %cf::MAP;
		2522	$self->clear;
1611		2523
1612	$self->unlink_save;	2524	$self->unlink_save;
1613	$self->destroy;	2525	$self->destroy;
1614	}	2526	}
1615		2527
1616	my $nuke_counter = "aaaa";	2528	my $nuke_counter = "aaaa";
1617		2529
1618	sub nuke {	2530	sub nuke {
1619	my ($self) = @_;	2531	my ($self) = @_;
1620		2532
		2533	{
		2534	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2535
		2536	delete $cf::MAP{$self->path};
		2537
		2538	$self->unlink_save;
		2539
		2540	bless $self, "cf::map::wrap";
		2541	delete $self->{deny_reset};
1621	$self->{deny_save} = 1;	2542	$self->{deny_save} = 1;
1622	$self->reset_timeout (1);	2543	$self->reset_timeout (1);
1623	$self->rename ("{nuke}/" . ($nuke_counter++));	2544	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2545
		2546	$cf::MAP{$self->path} = $self;
		2547	}
		2548
1624	$self->reset; # polite request, might not happen	2549	$self->reset; # polite request, might not happen
1625	}	2550	}
1626		2551
1627	sub customise_for {	2552	=item $maps = cf::map::tmp_maps
1628	my ($map, $ob) = @_;
1629		2553
1630	if ($map->per_player) {	2554	Returns an arrayref with all map paths of currently instantiated and saved
1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2555	maps. May block.
		2556
		2557	=cut
		2558
		2559	sub tmp_maps() {
1632	}	2560	[
		2561	map {
		2562	utf8::decode $_;
		2563	/\.map$/
		2564	? normalise $_
		2565	: ()
		2566	} @{ aio_readdir $TMPDIR or [] }
		2567	]
		2568	}
1633		2569
		2570	=item $maps = cf::map::random_maps
		2571
		2572	Returns an arrayref with all map paths of currently instantiated and saved
		2573	random maps. May block.
		2574
		2575	=cut
		2576
		2577	sub random_maps() {
		2578	[
		2579	map {
		2580	utf8::decode $_;
		2581	/\.map$/
		2582	? normalise "?random/$_"
		2583	: ()
		2584	} @{ aio_readdir $RANDOMDIR or [] }
		2585	]
		2586	}
		2587
		2588	=item cf::map::unique_maps
		2589
		2590	Returns an arrayref of paths of all shared maps that have
		2591	instantiated unique items. May block.
		2592
		2593	=cut
		2594
		2595	sub unique_maps() {
		2596	[
		2597	map {
		2598	utf8::decode $_;
		2599	s/\.map$//; # TODO future compatibility hack
		2600	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2601	? ()
		2602	: normalise $_
		2603	} @{ aio_readdir $UNIQUEDIR or [] }
		2604	]
		2605	}
		2606
		2607	=item cf::map::static_maps
		2608
		2609	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2610	file in the shared directory excluding F</styles> and F</editor>). May
		2611	block.
		2612
		2613	=cut
		2614
		2615	sub static_maps() {
		2616	my @dirs = "";
		2617	my @maps;
		2618
		2619	while (@dirs) {
		2620	my $dir = shift @dirs;
		2621
		2622	next if $dir eq "/styles" || $dir eq "/editor";
		2623
		2624	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2625	or return;
		2626
		2627	for (@$files) {
		2628	s/\.map$// or next;
		2629	utf8::decode $_;
		2630	push @maps, "$dir/$_";
		2631	}
		2632
		2633	push @dirs, map "$dir/$_", @$dirs;
		2634	}
		2635
1634	$map	2636	\@maps
1635	}	2637	}
1636
1637	package cf;
1638		2638
1639	=back	2639	=back
1640		2640
1641	=head3 cf::object	2641	=head3 cf::object
1642		2642
…		…
1646		2646
1647	=over 4	2647	=over 4
1648		2648
1649	=item $ob->inv_recursive	2649	=item $ob->inv_recursive
1650		2650
1651	Returns the inventory of the object _and_ their inventories, recursively.	2651	Returns the inventory of the object I<and> their inventories, recursively,
		2652	but I<not> the object itself.
1652		2653
1653	=cut	2654	=cut
1654		2655
1655	sub inv_recursive_;	2656	sub inv_recursive_;
1656	sub inv_recursive_ {	2657	sub inv_recursive_ {
…		…
1659		2660
1660	sub inv_recursive {	2661	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2662	inv_recursive_ inv $_[0]
1662	}	2663	}
1663		2664
		2665	=item $ref = $ob->ref
		2666
		2667	Creates and returns a persistent reference to an object that can be stored as a string.
		2668
		2669	=item $ob = cf::object::deref ($refstring)
		2670
		2671	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2672	even if the object actually exists. May block.
		2673
		2674	=cut
		2675
		2676	sub deref {
		2677	my ($ref) = @_;
		2678
		2679	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2680	my ($uuid, $name) = ($1, $2);
		2681	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2682	or return;
		2683	$pl->ob->uuid eq $uuid
		2684	or return;
		2685
		2686	$pl->ob
		2687	} else {
		2688	warn "$ref: cannot resolve object reference\n";
		2689	undef
		2690	}
		2691	}
		2692
1664	package cf;	2693	package cf;
1665		2694
1666	=back	2695	=back
1667		2696
1668	=head3 cf::object::player	2697	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2704	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2705	dialogue with the given NPC character.
1677		2706
1678	=cut	2707	=cut
		2708
		2709	our $SAY_CHANNEL = {
		2710	id => "say",
		2711	title => "Map",
		2712	reply => "say ",
		2713	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2714	};
		2715
		2716	our $CHAT_CHANNEL = {
		2717	id => "chat",
		2718	title => "Chat",
		2719	reply => "chat ",
		2720	tooltip => "Player chat and shouts, global to the server.",
		2721	};
1679		2722
1680	# rough implementation of a future "reply" method that works	2723	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2724	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2725	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2726	sub cf::object::player::reply($$$;$) {
…		…
1685		2728
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2730
1688	if ($self->{record_replies}) {	2731	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2733
1690	} else {	2734	} else {
		2735	my $pl = $self->contr;
		2736
		2737	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2738	my $dialog = $pl->{npc_dialog};
		2739	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2740
		2741	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2742	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2743	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2744	}
1693	}	2745	}
		2746	}
		2747
		2748	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2749
		2750	=cut
		2751
		2752	sub cf::object::send_msg {
		2753	my $pl = shift->contr
		2754	or return;
		2755	$pl->send_msg (@_);
1694	}	2756	}
1695		2757
1696	=item $player_object->may ("access")	2758	=item $player_object->may ("access")
1697		2759
1698	Returns wether the given player is authorized to access resource "access"	2760	Returns wether the given player is authorized to access resource "access"
1699	(e.g. "command_wizcast").	2761	(e.g. "command_wizcast").
1700		2762
		2763	This is implemented by checking a config setting of C<may_access> where
		2764	C<access> is replaced by the access string. The following alternatives are
		2765	possible (and are tested in order):
		2766
		2767	=over 4
		2768
		2769	=item * Player is DM
		2770
		2771	The request will succeed.
		2772
		2773	=item * may_access is an array reference
		2774
		2775	If either the player nickname or UUID is in the array, the request will
		2776	succeed, otherwise it will fail.
		2777
		2778	=item * may_access is a true value
		2779
		2780	The request will succeed.
		2781
		2782	=item * may_access is missing or false
		2783
		2784	The request will fail.
		2785
		2786	=back
		2787
1701	=cut	2788	=cut
1702		2789
1703	sub cf::object::player::may {	2790	sub cf::object::player::may {
1704	my ($self, $access) = @_;	2791	my ($self, $access) = @_;
1705		2792
1706	$self->flag (cf::FLAG_WIZ) ||	2793	$self->flag (cf::FLAG_WIZ) ||
1707	(ref $cf::CFG{"may_$access"}	2794	(ref $cf::CFG{"may_$access"}
1708	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2795	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1709	: $cf::CFG{"may_$access"})	2796	: $cf::CFG{"may_$access"})
1710	}	2797	}
1711		2798
1712	=item $player_object->enter_link	2799	=item $player_object->enter_link
1713		2800
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2801	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2802
1716	The player should be reaosnably safe there for short amounts of time. You	2803	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2804	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2805	though, as the player cannot control the character while it is on the link
		2806	map.
		2807
		2808	This method will never block, which is the whole reaosn for it's
		2809	existance: you can I<always> put a player onto the link map, which is the
		2810	only place to put objects that is guaranteed to exist.
		2811
		2812	A typical usage pattern is to call C<enter_link> synchronously from the
		2813	server, then start a new thread, do your blocking stuff there and then
		2814	call C<leave_link> from that thread.
1718		2815
1719	=item $player_object->leave_link ($map, $x, $y)	2816	=item $player_object->leave_link ($map, $x, $y)
1720		2817
1721	Moves the player out of the specila link map onto the given map. If the	2818	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2819	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2820	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2821	fails, to the emergency map position.
1725		2822
1726	Might block.	2823	Might block.
1727		2824
1728	=cut	2825	=cut
		2826
		2827	sub link_map {
		2828	unless ($LINK_MAP) {
		2829	$LINK_MAP = cf::map::find "{link}"
		2830	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2831	$LINK_MAP->load;
		2832	}
		2833
		2834	$LINK_MAP
		2835	}
1729		2836
1730	sub cf::object::player::enter_link {	2837	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2838	my ($self) = @_;
1732		2839
1733	$self->deactivate_recursive;	2840	$self->deactivate_recursive;
1734		2841
1735	return if $self->map == $LINK_MAP;	2842	++$self->{_link_recursion};
		2843
		2844	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2845
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2846	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2847	if $self->map && $self->map->{path} ne "{link}";
1739		2848
1740	$self->enter_map ($LINK_MAP, 20, 20);	2849	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1741	}	2850	}
1742		2851
1743	sub cf::object::player::leave_link {	2852	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2853	my ($self, $map, $x, $y) = @_;
		2854
		2855	return unless $self->contr->active;
1745		2856
1746	my $link_pos = delete $self->{_link_pos};	2857	my $link_pos = delete $self->{_link_pos};
1747		2858
1748	unless ($map) {	2859	unless ($map) {
1749	# restore original map position	2860	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2871	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2872	unless (defined $x) && (defined $y);
1762		2873
1763	# use -1 or undef as default coordinates, not 0, 0	2874	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2875	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2876	if $x <= 0 && $y <= 0;
1766		2877
1767	$map->load;	2878	$map->load;
1768	$map->load_diag;
1769		2879
1770	return unless $self->contr->active;	2880	return unless $self->contr->active;
		2881
		2882	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2883	if ($self->enter_map ($map, $x, $y)) {
		2884	# entering was successful
		2885	delete $self->{_link_recursion};
		2886	# only activate afterwards, to support waiting in hooks
1771	$self->activate_recursive;	2887	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}
1774
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},	2888	}
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2889
1789	# try to abort aborted map switching on player login :)	2890	}
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2891
1807	=item $player_object->goto ($path, $x, $y)	2892	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1808		2893
		2894	Moves the player to the given map-path and coordinates by first freezing
		2895	her, loading and preparing them map, calling the provided $check callback
		2896	that has to return the map if sucecssful, and then unfreezes the player on
		2897	the new (success) or old (failed) map position. In either case, $done will
		2898	be called at the end of this process.
		2899
		2900	Note that $check will be called with a potentially non-loaded map, so if
		2901	it needs a loaded map it has to call C<< ->load >>.
		2902
1809	=cut	2903	=cut
		2904
		2905	our $GOTOGEN;
1810		2906
1811	sub cf::object::player::goto {	2907	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2908	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2909
1814	$path = new cf::path $path;	2910	if ($self->{_link_recursion} >= $MAX_LINKS) {
1815	$path ne "/" or Carp::cluck ("oy");#d#	2911	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2912	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2913	($path, $x, $y) = @$EMERGENCY_POSITION;
		2914	}
		2915
		2916	# do generation counting so two concurrent goto's will be executed in-order
		2917	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1816		2918
1817	$self->enter_link;	2919	$self->enter_link;
1818		2920
1819	(async {	2921	(async {
1820	my $map = cf::map::find $path->as_string;	2922	$Coro::current->{desc} = "player::goto $path $x $y";
		2923
		2924	# *tag paths override both path and x|y
		2925	if ($path =~ /^\*(.*)$/) {
		2926	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2927	my $ob = $obs[rand @obs];
		2928
		2929	# see if we actually can go there
		2930	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2931	$ob = $obs[rand @obs];
		2932	} else {
		2933	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2934	}
		2935	# else put us there anyways for now #d#
		2936
		2937	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2938	} else {
		2939	($path, $x, $y) = (undef, undef, undef);
		2940	}
		2941	}
		2942
		2943	my $map = eval {
		2944	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2945
		2946	if ($map) {
1821	$map = $map->customise_for ($self) if $map;	2947	$map = $map->customise_for ($self);
1822		2948	$map = $check->($map, $x, $y, $self) if $check && $map;
1823	# warn "entering ", $map->path, " at ($x, $y)\n"	2949	} else {
1824	# if $map;
1825
1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2950	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2951	}
1827		2952
		2953	$map
		2954	};
		2955
		2956	if ($@) {
		2957	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2958	LOG llevError | logBacktrace, Carp::longmess $@;
		2959	}
		2960
		2961	if ($gen == $self->{_goto_generation}) {
		2962	delete $self->{_goto_generation};
1828	$self->leave_link ($map, $x, $y);	2963	$self->leave_link ($map, $x, $y);
		2964	}
		2965
		2966	$done->($self) if $done;
1829	})->prio (1);	2967	})->prio (1);
1830	}	2968	}
1831		2969
1832	=item $player_object->enter_exit ($exit_object)	2970	=item $player_object->enter_exit ($exit_object)
1833		2971
…		…
1835		2973
1836	sub parse_random_map_params {	2974	sub parse_random_map_params {
1837	my ($spec) = @_;	2975	my ($spec) = @_;
1838		2976
1839	my $rmp = { # defaults	2977	my $rmp = { # defaults
1840	xsize => 10,	2978	xsize => (cf::rndm 15, 40),
1841	ysize => 10,	2979	ysize => (cf::rndm 15, 40),
		2980	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2981	#layout => string,
1842	};	2982	};
1843		2983
1844	for (split /\n/, $spec) {	2984	for (split /\n/, $spec) {
1845	my ($k, $v) = split /\s+/, $_, 2;	2985	my ($k, $v) = split /\s+/, $_, 2;
1846		2986
…		…
1858	# that depends on the exit object	2998	# that depends on the exit object
1859		2999
1860	my $rmp = parse_random_map_params $exit->msg;	3000	my $rmp = parse_random_map_params $exit->msg;
1861		3001
1862	if ($exit->map) {	3002	if ($exit->map) {
1863	$rmp->{region} = $exit->map->region_name;	3003	$rmp->{region} = $exit->region->name;
1864	$rmp->{origin_map} = $exit->map->path;	3004	$rmp->{origin_map} = $exit->map->path;
1865	$rmp->{origin_x} = $exit->x;	3005	$rmp->{origin_x} = $exit->x;
1866	$rmp->{origin_y} = $exit->y;	3006	$rmp->{origin_y} = $exit->y;
		3007
		3008	$exit->map->touch;
1867	}	3009	}
1868		3010
1869	$rmp->{random_seed} ||= $exit->random_seed;	3011	$rmp->{random_seed} ||= $exit->random_seed;
1870		3012
1871	my $data = cf::to_json $rmp;	3013	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1872	my $md5 = Digest::MD5::md5_hex $data;	3014	my $md5 = Digest::MD5::md5_hex $data;
		3015	my $meta = "$RANDOMDIR/$md5.meta";
1873		3016
1874	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	3017	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1875	aio_write $fh, 0, (length $data), $data, 0;	3018	aio_write $fh, 0, (length $data), $data, 0;
		3019	undef $fh;
		3020	aio_rename "$meta~", $meta;
1876		3021
		3022	my $slaying = "?random/$md5";
		3023
		3024	if ($exit->valid) {
1877	$exit->slaying ("?random/$md5");	3025	$exit->slaying ("?random/$md5");
1878	$exit->msg (undef);	3026	$exit->msg (undef);
		3027	}
1879	}	3028	}
1880	}	3029	}
1881		3030
1882	sub cf::object::player::enter_exit {	3031	sub cf::object::player::enter_exit {
1883	my ($self, $exit) = @_;	3032	my ($self, $exit) = @_;
…		…
1885	return unless $self->type == cf::PLAYER;	3034	return unless $self->type == cf::PLAYER;
1886		3035
1887	$self->enter_link;	3036	$self->enter_link;
1888		3037
1889	(async {	3038	(async {
1890	$self->deactivate_recursive; # just to be sure	3039	$Coro::current->{desc} = "enter_exit";
		3040
1891	unless (eval {	3041	unless (eval {
		3042	$self->deactivate_recursive; # just to be sure
		3043
		3044	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3045	my $x = $exit->stats->hp;
		3046	my $y = $exit->stats->sp;
		3047
		3048	# special map handling
		3049	my $slaying = $exit->slaying;
		3050
		3051	# special map handling
		3052	if ($slaying eq "/!") {
		3053	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3054
1892	prepare_random_map $exit	3055	prepare_random_map $exit
		3056	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3057
1893	if $exit->slaying eq "/!";	3058	$map = $exit->slaying;
1894		3059
1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3060	} elsif ($slaying eq '!up') {
1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3061	$map = $exit->map->tile_path (cf::TILE_UP);
		3062	$x = $exit->x;
		3063	$y = $exit->y;
1897		3064
		3065	} elsif ($slaying eq '!down') {
		3066	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3067	$x = $exit->x;
		3068	$y = $exit->y;
		3069	}
		3070
		3071	$self->goto ($map, $x, $y);
		3072
		3073	# if exit is damned, update players death & WoR home-position
		3074	$self->contr->savebed ($map, $x, $y)
		3075	if $exit->flag (cf::FLAG_DAMNED);
		3076
1898	1;	3077	1
1899	}) {	3078	}) {
1900	$self->message ("Something went wrong deep within the crossfire server. "	3079	$self->message ("Something went wrong deep within the deliantra server. "
1901	. "I'll try to bring you back to the map you were before. "	3080	. "I'll try to bring you back to the map you were before. "
1902	. "Please report this to the dungeon master",	3081	. "Please report this to the dungeon master!",
1903	cf::NDI_UNIQUE | cf::NDI_RED);	3082	cf::NDI_UNIQUE | cf::NDI_RED);
1904		3083
1905	warn "ERROR in enter_exit: $@";	3084	error "ERROR in enter_exit: $@";
1906	$self->leave_link;	3085	$self->leave_link;
1907	}	3086	}
1908	})->prio (1);	3087	})->prio (1);
1909	}	3088	}
1910		3089
1911	=head3 cf::client	3090	=head3 cf::client
1912		3091
1913	=over 4	3092	=over 4
1914		3093
1915	=item $client->send_drawinfo ($text, $flags)	3094	=item $client->send_big_packet ($pkt)
1916		3095
1917	Sends a drawinfo packet to the client. Circumvents output buffering so	3096	Like C<send_packet>, but tries to compress large packets, and fragments
1918	should not be used under normal circumstances.	3097	them as required.
1919		3098
1920	=cut	3099	=cut
1921		3100
		3101	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3102
		3103	sub cf::client::send_big_packet {
		3104	my ($self, $pkt) = @_;
		3105
		3106	# try lzf for large packets
		3107	$pkt = "lzf " . Compress::LZF::compress $pkt
		3108	if 1024 <= length $pkt and $self->{can_lzf};
		3109
		3110	# split very large packets
		3111	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3112	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3113	$pkt = "frag";
		3114	}
		3115
		3116	$self->send_packet ($pkt);
		3117	}
		3118
		3119	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3120
		3121	Send a msg packet to the client, formatting the msg for the client if
		3122	necessary. C<$type> should be a string identifying the type of the
		3123	message, with C<log> being the default. If C<$color> is negative, suppress
		3124	the message unless the client supports the msg packet.
		3125
		3126	=cut
		3127
		3128	# non-persistent channels (usually the info channel)
		3129	our %CHANNEL = (
		3130	"c/motd" => {
		3131	id => "infobox",
		3132	title => "MOTD",
		3133	reply => undef,
		3134	tooltip => "The message of the day",
		3135	},
		3136	"c/identify" => {
		3137	id => "infobox",
		3138	title => "Identify",
		3139	reply => undef,
		3140	tooltip => "Items recently identified",
		3141	},
		3142	"c/examine" => {
		3143	id => "infobox",
		3144	title => "Examine",
		3145	reply => undef,
		3146	tooltip => "Signs and other items you examined",
		3147	},
		3148	"c/shopinfo" => {
		3149	id => "infobox",
		3150	title => "Shop Info",
		3151	reply => undef,
		3152	tooltip => "What your bargaining skill tells you about the shop",
		3153	},
		3154	"c/book" => {
		3155	id => "infobox",
		3156	title => "Book",
		3157	reply => undef,
		3158	tooltip => "The contents of a note or book",
		3159	},
		3160	"c/lookat" => {
		3161	id => "infobox",
		3162	title => "Look",
		3163	reply => undef,
		3164	tooltip => "What you saw there",
		3165	},
		3166	"c/who" => {
		3167	id => "infobox",
		3168	title => "Players",
		3169	reply => undef,
		3170	tooltip => "Shows players who are currently online",
		3171	},
		3172	"c/body" => {
		3173	id => "infobox",
		3174	title => "Body Parts",
		3175	reply => undef,
		3176	tooltip => "Shows which body parts you possess and are available",
		3177	},
		3178	"c/statistics" => {
		3179	id => "infobox",
		3180	title => "Statistics",
		3181	reply => undef,
		3182	tooltip => "Shows your primary statistics",
		3183	},
		3184	"c/skills" => {
		3185	id => "infobox",
		3186	title => "Skills",
		3187	reply => undef,
		3188	tooltip => "Shows your experience per skill and item power",
		3189	},
		3190	"c/shopitems" => {
		3191	id => "infobox",
		3192	title => "Shop Items",
		3193	reply => undef,
		3194	tooltip => "Shows the items currently for sale in this shop",
		3195	},
		3196	"c/resistances" => {
		3197	id => "infobox",
		3198	title => "Resistances",
		3199	reply => undef,
		3200	tooltip => "Shows your resistances",
		3201	},
		3202	"c/pets" => {
		3203	id => "infobox",
		3204	title => "Pets",
		3205	reply => undef,
		3206	tooltip => "Shows information abotu your pets/a specific pet",
		3207	},
		3208	"c/perceiveself" => {
		3209	id => "infobox",
		3210	title => "Perceive Self",
		3211	reply => undef,
		3212	tooltip => "You gained detailed knowledge about yourself",
		3213	},
		3214	"c/uptime" => {
		3215	id => "infobox",
		3216	title => "Uptime",
		3217	reply => undef,
		3218	tooltip => "How long the server has been running since last restart",
		3219	},
		3220	"c/mapinfo" => {
		3221	id => "infobox",
		3222	title => "Map Info",
		3223	reply => undef,
		3224	tooltip => "Information related to the maps",
		3225	},
		3226	"c/party" => {
		3227	id => "party",
		3228	title => "Party",
		3229	reply => "gsay ",
		3230	tooltip => "Messages and chat related to your party",
		3231	},
		3232	"c/death" => {
		3233	id => "death",
		3234	title => "Death",
		3235	reply => undef,
		3236	tooltip => "Reason for and more info about your most recent death",
		3237	},
		3238	"c/fatal" => {
		3239	id => "fatal",
		3240	title => "Fatal Error",
		3241	reply => undef,
		3242	tooltip => "Reason for the server disconnect",
		3243	},
		3244	"c/say" => $SAY_CHANNEL,
		3245	"c/chat" => $CHAT_CHANNEL,
		3246	);
		3247
1922	sub cf::client::send_drawinfo {	3248	sub cf::client::send_msg {
		3249	my ($self, $channel, $msg, $color, @extra) = @_;
		3250
		3251	$msg = $self->pl->expand_cfpod ($msg)
		3252	unless $color & cf::NDI_VERBATIM;
		3253
		3254	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3255
		3256	# check predefined channels, for the benefit of C
		3257	if ($CHANNEL{$channel}) {
		3258	$channel = $CHANNEL{$channel};
		3259
		3260	$self->ext_msg (channel_info => $channel);
		3261	$channel = $channel->{id};
		3262
		3263	} elsif (ref $channel) {
		3264	# send meta info to client, if not yet sent
		3265	unless (exists $self->{channel}{$channel->{id}}) {
		3266	$self->{channel}{$channel->{id}} = $channel;
		3267	$self->ext_msg (channel_info => $channel);
		3268	}
		3269
		3270	$channel = $channel->{id};
		3271	}
		3272
		3273	return unless @extra || length $msg;
		3274
		3275	# default colour, mask it out
		3276	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3277	if $color & cf::NDI_DEF;
		3278
		3279	my $pkt = "msg "
		3280	. $self->{json_coder}->encode (
		3281	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3282	);
		3283
		3284	$self->send_big_packet ($pkt);
		3285	}
		3286
		3287	=item $client->ext_msg ($type, @msg)
		3288
		3289	Sends an ext event to the client.
		3290
		3291	=cut
		3292
		3293	sub cf::client::ext_msg($$@) {
1923	my ($self, $text, $flags) = @_;	3294	my ($self, $type, @msg) = @_;
1924		3295
1925	utf8::encode $text;	3296	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1926	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1927	}	3297	}
1928
1929		3298
1930	=item $success = $client->query ($flags, "text", \&cb)	3299	=item $success = $client->query ($flags, "text", \&cb)
1931		3300
1932	Queues a query to the client, calling the given callback with	3301	Queues a query to the client, calling the given callback with
1933	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3302	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1934	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3303	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1935		3304
1936	Queries can fail, so check the return code. Or don't, as queries will become	3305	Queries can fail, so check the return code. Or don't, as queries will
1937	reliable at some point in the future.	3306	become reliable at some point in the future.
1938		3307
1939	=cut	3308	=cut
1940		3309
1941	sub cf::client::query {	3310	sub cf::client::query {
1942	my ($self, $flags, $text, $cb) = @_;	3311	my ($self, $flags, $text, $cb) = @_;
…		…
1950	utf8::encode $text;	3319	utf8::encode $text;
1951	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3320	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1952		3321
1953	$self->send_packet ($self->{query_queue}[0][0])	3322	$self->send_packet ($self->{query_queue}[0][0])
1954	if @{ $self->{query_queue} } == 1;	3323	if @{ $self->{query_queue} } == 1;
		3324
		3325	1
		3326	}
		3327
		3328	=item $client->update_command_faces
		3329
		3330	=cut
		3331
		3332	our %COMMAND_FACE;
		3333
		3334	sub cf::client::update_command_faces {
		3335	my ($self) = @_;
		3336
		3337	my @faces = grep $_,
		3338	$COMMAND_FACE{preferred},
		3339	$COMMAND_FACE{standard},
		3340	$COMMAND_FACE{skill},
		3341	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3342	$COMMAND_FACE{emote},
		3343	;
		3344
		3345	$self->send_face ($_)
		3346	for @faces;
		3347	$self->flush_fx;
		3348
		3349	$self->ext_msg (command_list => @faces);
		3350	}
		3351
		3352	=item cf::client::set_command_face $type, $commands
		3353
		3354	=cut
		3355
		3356	sub cf::client::set_command_face {
		3357	my ($type, $list) = @_;
		3358
		3359	my $idx = &cf::face::set ( #d# ugly forward reference
		3360	"command_list/$type" => cf::FT_RSRC,
		3361	JSON::XS->new->utf8->encode ([ sort @$list ])
		3362	);
		3363
		3364	$COMMAND_FACE{$type} = $idx;
1955	}	3365	}
1956		3366
1957	cf::client->attach (	3367	cf::client->attach (
		3368	on_connect => sub {
		3369	my ($ns) = @_;
		3370
		3371	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3372	},
1958	on_reply => sub {	3373	on_reply => sub {
1959	my ($ns, $msg) = @_;	3374	my ($ns, $msg) = @_;
1960		3375
1961	# this weird shuffling is so that direct followup queries	3376	# this weird shuffling is so that direct followup queries
1962	# get handled first	3377	# get handled first
1963	my $queue = delete $ns->{query_queue}	3378	my $queue = delete $ns->{query_queue}
1964	or return; # be conservative, not sure how that can happen, but we saw a crash here	3379	or return; # be conservative, not sure how that can happen, but we saw a crash here
1965		3380
1966	(shift @$queue)->[1]->($msg);	3381	(shift @$queue)->[1]->($msg);
		3382	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1967		3383
1968	push @{ $ns->{query_queue} }, @$queue;	3384	push @{ $ns->{query_queue} }, @$queue;
1969		3385
1970	if (@{ $ns->{query_queue} } == @$queue) {	3386	if (@{ $ns->{query_queue} } == @$queue) {
1971	if (@$queue) {	3387	if (@$queue) {
…		…
1973	} else {	3389	} else {
1974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3390	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1975	}	3391	}
1976	}	3392	}
1977	},	3393	},
		3394	on_exticmd => sub {
		3395	my ($ns, $buf) = @_;
		3396
		3397	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3398
		3399	if (ref $msg) {
		3400	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3401
		3402	if (my $cb = $EXTIACMD{$type}) {
		3403	$cb->(
		3404	$ns,
		3405	sub {
		3406	$ns->ext_msg ("reply-$reply", @_)
		3407	if $reply;
		3408	},
		3409	@payload
		3410	);
		3411	} else {
		3412	my @reply;
		3413
		3414	if (my $cb = $EXTICMD{$type}) {
		3415	@reply = $cb->($ns, @payload);
		3416	}
		3417
		3418	$ns->ext_msg ("reply-$reply", @reply)
		3419	if $reply;
		3420	}
		3421	} else {
		3422	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3423	}
		3424
		3425	cf::override;
		3426	},
1978	);	3427	);
1979		3428
1980	=item $client->async (\&cb)	3429	=item $client->async (\&cb)
1981		3430
1982	Create a new coroutine, running the specified callback. The coroutine will	3431	Create a new coroutine, running the specified callback. The coroutine will
…		…
1998		3447
1999	$coro	3448	$coro
2000	}	3449	}
2001		3450
2002	cf::client->attach (	3451	cf::client->attach (
2003	on_destroy => sub {	3452	on_client_destroy => sub {
2004	my ($ns) = @_;	3453	my ($ns) = @_;
2005		3454
2006	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3455	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2007	},	3456	},
2008	);	3457	);
…		…
2023	our $safe = new Safe "safe";	3472	our $safe = new Safe "safe";
2024	our $safe_hole = new Safe::Hole;	3473	our $safe_hole = new Safe::Hole;
2025		3474
2026	$SIG{FPE} = 'IGNORE';	3475	$SIG{FPE} = 'IGNORE';
2027		3476
2028	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3477	$safe->permit_only (Opcode::opset qw(
		3478	:base_core :base_mem :base_orig :base_math :base_loop
		3479	grepstart grepwhile mapstart mapwhile
		3480	sort time
		3481	));
2029		3482
2030	# here we export the classes and methods available to script code	3483	# here we export the classes and methods available to script code
2031		3484
2032	=pod	3485	=pod
2033		3486
2034	The following fucntions and emthods are available within a safe environment:	3487	The following functions and methods are available within a safe environment:
2035		3488
2036	cf::object contr pay_amount pay_player map	3489	cf::object
		3490	contr pay_amount pay_player map x y force_find force_add destroy
		3491	insert remove name archname title slaying race decrease split
		3492	value
		3493
2037	cf::object::player player	3494	cf::object::player
2038	cf::player peaceful	3495	player
2039	cf::map trigger	3496
		3497	cf::player
		3498	peaceful
		3499
		3500	cf::map
		3501	trigger
2040		3502
2041	=cut	3503	=cut
2042		3504
2043	for (	3505	for (
2044	["cf::object" => qw(contr pay_amount pay_player map)],	3506	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3507	insert remove inv nrof name archname title slaying race
		3508	decrease split destroy change_exp value msg lore send_msg)],
2045	["cf::object::player" => qw(player)],	3509	["cf::object::player" => qw(player)],
2046	["cf::player" => qw(peaceful)],	3510	["cf::player" => qw(peaceful send_msg)],
2047	["cf::map" => qw(trigger)],	3511	["cf::map" => qw(trigger)],
2048	) {	3512	) {
2049	no strict 'refs';
2050	my ($pkg, @funs) = @$_;	3513	my ($pkg, @funs) = @$_;
2051	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3514	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2052	for @funs;	3515	for @funs;
2053	}	3516	}
2054		3517
…		…
2069		3532
2070	my $qcode = $code;	3533	my $qcode = $code;
2071	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3534	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2072	$qcode =~ s/\n/\\n/g;	3535	$qcode =~ s/\n/\\n/g;
2073		3536
		3537	%vars = (_dummy => 0) unless %vars;
		3538
		3539	my @res;
2074	local $_;	3540	local $_;
2075	local @safe::cf::_safe_eval_args = values %vars;
2076		3541
2077	my $eval =	3542	my $eval =
2078	"do {\n"	3543	"do {\n"
2079	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3544	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2080	. "#line 0 \"{$qcode}\"\n"	3545	. "#line 0 \"{$qcode}\"\n"
2081	. $code	3546	. $code
2082	. "\n}"	3547	. "\n}"
2083	;	3548	;
2084		3549
		3550	if ($CFG{safe_eval}) {
2085	sub_generation_inc;	3551	sub_generation_inc;
		3552	local @safe::cf::_safe_eval_args = values %vars;
2086	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3553	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2087	sub_generation_inc;	3554	sub_generation_inc;
		3555	} else {
		3556	local @cf::_safe_eval_args = values %vars;
		3557	@res = wantarray ? eval eval : scalar eval $eval;
		3558	}
2088		3559
2089	if ($@) {	3560	if ($@) {
2090	warn "$@";	3561	warn "$@",
2091	warn "while executing safe code '$code'\n";	3562	"while executing safe code '$code'\n",
2092	warn "with arguments " . (join " ", %vars) . "\n";	3563	"with arguments " . (join " ", %vars) . "\n";
2093	}	3564	}
2094		3565
2095	wantarray ? @res : $res[0]	3566	wantarray ? @res : $res[0]
2096	}	3567	}
2097		3568
…		…
2111	=cut	3582	=cut
2112		3583
2113	sub register_script_function {	3584	sub register_script_function {
2114	my ($fun, $cb) = @_;	3585	my ($fun, $cb) = @_;
2115		3586
2116	no strict 'refs';	3587	$fun = "safe::$fun" if $CFG{safe_eval};
2117	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3588	*$fun = $safe_hole->wrap ($cb);
2118	}	3589	}
2119		3590
2120	=back	3591	=back
2121		3592
2122	=cut	3593	=cut
2123		3594
2124	#############################################################################	3595	#############################################################################
2125		3596	# the server's init and main functions
2126	=head2 EXTENSION DATABASE SUPPORT
2127
2128	Crossfire maintains a very simple database for extension use. It can
2129	currently store anything that can be serialised using Storable, which
2130	excludes objects.
2131
2132	The parameter C<$family> should best start with the name of the extension
2133	using it, it should be unique.
2134
2135	=over 4
2136
2137	=item $hashref = cf::db_get $family
2138
2139	Return a hashref for use by the extension C<$family>, which can be
2140	modified. After modifications, you have to call C<cf::db_dirty> or
2141	C<cf::db_sync>.
2142
2143	=item $value = cf::db_get $family => $key
2144
2145	Returns a single value from the database
2146
2147	=item cf::db_put $family => $hashref
2148
2149	Stores the given family hashref into the database. Updates are delayed, if
2150	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2151
2152	=item cf::db_put $family => $key => $value
2153
2154	Stores the given C<$value> in the family hash. Updates are delayed, if you
2155	want the data to be synced to disk immediately, use C<cf::db_sync>.
2156
2157	=item cf::db_dirty
2158
2159	Marks the database as dirty, to be updated at a later time.
2160
2161	=item cf::db_sync
2162
2163	Immediately write the database to disk I<if it is dirty>.
2164
2165	=cut
2166
2167	our $DB;
2168		3597
2169	{	3598	{
2170	my $path = cf::localdir . "/database.pst";	3599	package cf::face;
2171		3600
2172	sub db_load() {	3601	our %HASH; # hash => idx
2173	$DB = stat $path ? Storable::retrieve $path : { };	3602	our @DATA; # dynamically-created facedata, only faceste 0 used
2174	}	3603	our @FOFS; # file offset, if > 0
		3604	our @SIZE; # size of face, in octets
		3605	our @META; # meta hash of face, if any
		3606	our $DATAFH; # facedata filehandle
2175		3607
2176	my $pid;	3608	# internal api, not finalised
		3609	sub set {
		3610	my ($name, $type, $data) = @_;
2177		3611
2178	sub db_save() {	3612	my $idx = cf::face::find $name;
2179	waitpid $pid, 0 if $pid;
2180	if (0 == ($pid = fork)) {
2181	$DB->{_meta}{version} = 1;
2182	Storable::nstore $DB, "$path~";
2183	rename "$path~", $path;
2184	cf::_exit 0 if defined $pid;
2185	}
2186	}
2187		3613
2188	my $dirty;	3614	if ($idx) {
2189		3615	delete $HASH{cf::face::get_csum $idx};
2190	sub db_sync() {
2191	db_save if $dirty;
2192	undef $dirty;
2193	}
2194
2195	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2196	db_sync;
2197	});
2198
2199	sub db_dirty() {
2200	$dirty = 1;
2201	$idle->start;
2202	}
2203
2204	sub db_get($;$) {
2205	@_ >= 2
2206	? $DB->{$_[0]}{$_[1]}
2207	: ($DB->{$_[0]} ||= { })
2208	}
2209
2210	sub db_put($$;$) {
2211	if (@_ >= 3) {
2212	$DB->{$_[0]}{$_[1]} = $_[2];
2213	} else {	3616	} else {
2214	$DB->{$_[0]} = $_[1];	3617	$idx = cf::face::alloc $name;
2215	}
2216	db_dirty;
2217	}
2218
2219	cf::global->attach (
2220	prio => 10000,
2221	on_cleanup => sub {
2222	db_sync;
2223	},	3618	}
		3619
		3620	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3621
		3622	cf::face::set_type $idx, $type;
		3623	cf::face::set_csum $idx, 0, $hash;
		3624
		3625	# we need to destroy the SV itself, not just modify it, as a running ix
		3626	# might hold a reference to it: "delete" achieves that.
		3627	delete $FOFS[0][$idx];
		3628	delete $DATA[0][$idx];
		3629	$DATA[0][$idx] = $data;
		3630	$SIZE[0][$idx] = length $data;
		3631	delete $META[$idx];
		3632	$HASH{$hash} = $idx;#d#
		3633
		3634	$idx
		3635	}
		3636
		3637	sub _get_data($$$) {
		3638	my ($idx, $set, $cb) = @_;
		3639
		3640	if (defined $DATA[$set][$idx]) {
		3641	$cb->($DATA[$set][$idx]);
		3642	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3643	my $size = $SIZE[$set][$idx];
		3644	my $buf;
		3645	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3646	if ($_[0] == $size) {
		3647	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3648	$cb->($buf);
		3649	} else {
		3650	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3651	}
		3652	};
		3653	} else {
		3654	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3655	}
		3656	}
		3657
		3658	# rather ineffient
		3659	sub cf::face::get_data($;$) {
		3660	my ($idx, $set) = @_;
		3661
		3662	_get_data $idx, $set, Coro::rouse_cb;
		3663	Coro::rouse_wait
		3664	}
		3665
		3666	sub cf::face::ix {
		3667	my ($ns, $set, $idx, $pri) = @_;
		3668
		3669	_get_data $idx, $set, sub {
		3670	$ns->ix_send ($idx, $pri, $_[0]);
		3671	};
		3672	}
		3673	}
		3674
		3675	sub load_facedata($) {
		3676	my ($path) = @_;
		3677
		3678	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3679
		3680	trace "loading facedata from $path\n";
		3681
		3682	my $facedata = decode_storable load_file "$path/faceinfo";
		3683
		3684	$facedata->{version} == 2
		3685	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3686
		3687	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3688	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3689
		3690	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3691
		3692	# BEGIN ATOMIC
		3693	# from here on, everything must be atomic - no thread switch allowed
		3694	my $t1 = EV::time;
		3695
		3696	{
		3697	my $faces = $facedata->{faceinfo};
		3698
		3699	for my $face (sort keys %$faces) {
		3700	my $info = $faces->{$face};
		3701	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3702
		3703	cf::face::set_visibility $idx, $info->{visibility};
		3704	cf::face::set_magicmap $idx, $info->{magicmap};
		3705	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3706	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3707	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3708	$cf::face::HASH{$info->{hash64}} = $idx;
		3709	delete $cf::face::META[$idx];
		3710	}
		3711
		3712	while (my ($face, $info) = each %$faces) {
		3713	next unless $info->{smooth};
		3714
		3715	my $idx = cf::face::find $face
		3716	or next;
		3717
		3718	if (my $smooth = cf::face::find $info->{smooth}) {
		3719	cf::face::set_smooth $idx, $smooth;
		3720	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3721	} else {
		3722	error "smooth face '$info->{smooth}' not found for face '$face'";
		3723	}
		3724	}
		3725	}
		3726
		3727	{
		3728	my $anims = $facedata->{animinfo};
		3729
		3730	while (my ($anim, $info) = each %$anims) {
		3731	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3732	}
		3733
		3734	cf::anim::invalidate_all; # d'oh
		3735	}
		3736
		3737	{
		3738	my $res = $facedata->{resource};
		3739
		3740	while (my ($name, $info) = each %$res) {
		3741	if (defined (my $type = $info->{type})) {
		3742	# TODO: different hash - must free and use new index, or cache ixface data queue
		3743	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3744
		3745	cf::face::set_type $idx, $type;
		3746	cf::face::set_csum $idx, 0, $info->{hash};
		3747	$cf::face::SIZE[0][$idx] = $info->{size};
		3748	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3749	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3750	$cf::face::HASH{$info->{hash}} = $idx;
		3751	} else {
		3752	# $RESOURCE{$name} = $info; # unused
		3753	}
		3754	}
		3755	}
		3756
		3757	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3758
		3759	# HACK to clear player env face cache, we need some signal framework
		3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
		3762
		3763	# END ATOMIC
		3764
		3765	cf::debug "facedata atomic update time ", EV::time - $t1;
		3766
		3767	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3768
		3769	aio_close $fh if $fh; # close old facedata
		3770
		3771	1
		3772	}
		3773
		3774	register_exticmd fx_want => sub {
		3775	my ($ns, $want) = @_;
		3776
		3777	while (my ($k, $v) = each %$want) {
		3778	$ns->fx_want ($k, $v);
		3779	}
		3780	};
		3781
		3782	sub load_resource_file($) {
		3783	my $guard = lock_acquire "load_resource_file";
		3784
		3785	my $status = load_resource_file_ $_[0];
		3786	get_slot 0.1, 100;
		3787	cf::arch::commit_load;
		3788
		3789	$status
		3790	}
		3791
		3792	sub reload_exp_table {
		3793	_reload_exp_table;
		3794
		3795	cf::face::set
		3796	"res/exp_table" => FT_RSRC,
		3797	JSON::XS->new->utf8->canonical->encode (
		3798	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
2224	);	3799	);
2225	}	3800	}
2226		3801
2227	#############################################################################	3802	sub reload_materials {
2228	# the server's main()	3803	_reload_materials;
		3804	}
2229		3805
2230	sub cfg_load {	3806	sub reload_regions {
2231	open my $fh, "<:utf8", cf::confdir . "/config"	3807	# HACK to clear player env face cache, we need some signal framework
2232	or return;	3808	# for this (global event?)
		3809	%ext::player_env::MUSIC_FACE_CACHE = ();
2233		3810
2234	local $/;	3811	load_resource_file "$MAPDIR/regions"
2235	*CFG = YAML::Syck::Load <$fh>;	3812	or die "unable to load regions file\n";
2236		3813
		3814	for (cf::region::list) {
		3815	$_->{match} = qr/$_->{match}/
		3816	if exists $_->{match};
		3817	}
		3818	}
		3819
		3820	sub reload_facedata {
		3821	load_facedata $DATADIR
		3822	or die "unable to load facedata\n";
		3823	}
		3824
		3825	sub reload_archetypes {
		3826	load_resource_file "$DATADIR/archetypes"
		3827	or die "unable to load archetypes\n";
		3828
		3829	cf::face::set
		3830	"res/skill_info" => FT_RSRC,
		3831	JSON::XS->new->utf8->canonical->encode (
		3832	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3833	);
		3834
		3835	cf::face::set
		3836	"res/spell_paths" => FT_RSRC,
		3837	JSON::XS->new->utf8->canonical->encode (
		3838	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3839	);
		3840
		3841	# command completion
		3842	my @commands;
		3843
		3844	for (0..cf::arch::skillvec_size - 1) {
		3845	my $skill = cf::arch::skillvec $_;
		3846	my $name = $skill->name;
		3847	my $flags = cf::skill_flags $skill->subtype;
		3848
		3849	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3850	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3851	}
		3852
		3853	cf::client::set_command_face skill => \@commands;
		3854	}
		3855
		3856	sub reload_treasures {
		3857	load_resource_file "$DATADIR/treasures"
		3858	or die "unable to load treasurelists\n";
		3859	}
		3860
		3861	sub reload_sound {
		3862	trace "loading sound config from $DATADIR/sound\n";
		3863
		3864	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3865
		3866	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3867	my $sound = $soundconf->{compat}[$_]
		3868	or next;
		3869
		3870	my $face = cf::face::find "sound/$sound->[1]";
		3871	cf::sound::set $sound->[0] => $face;
		3872	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3873	}
		3874
		3875	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3876	my $face = cf::face::find "sound/$v";
		3877	cf::sound::set $k => $face;
		3878	}
		3879	}
		3880
		3881	sub reload_resources {
		3882	trace "reloading resource files...\n";
		3883
		3884	reload_materials;
		3885	reload_facedata;
		3886	reload_exp_table;
		3887	reload_sound;
		3888	reload_archetypes;
		3889	reload_regions;
		3890	reload_treasures;
		3891
		3892	trace "finished reloading resource files\n";
		3893	}
		3894
		3895	sub reload_config {
		3896	trace "reloading config file...\n";
		3897
		3898	my $config = load_file "$CONFDIR/config";
		3899	utf8::decode $config;
		3900	*CFG = decode_yaml $config;
		3901
2237	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3902	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2238		3903
2239	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3904	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2240	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3905	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2241		3906
2242	if (exists $CFG{mlockall}) {	3907	if (exists $CFG{mlockall}) {
…		…
2246	};	3911	};
2247	warn $@ if $@;	3912	warn $@ if $@;
2248	}	3913	}
2249	}	3914	}
2250		3915
		3916	sub pidfile() {
		3917	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3918	or die "$PIDFILE: $!";
		3919	flock $fh, &Fcntl::LOCK_EX
		3920	or die "$PIDFILE: flock: $!";
		3921	$fh
		3922	}
		3923
		3924	# make sure only one server instance is running at any one time
		3925	sub atomic {
		3926	my $fh = pidfile;
		3927
		3928	my $pid = <$fh>;
		3929	kill 9, $pid if $pid > 0;
		3930
		3931	seek $fh, 0, 0;
		3932	print $fh $$;
		3933	}
		3934
		3935	sub main_loop {
		3936	trace "EV::run starting\n";
		3937	if (1) {
		3938	EV::run;
		3939	}
		3940	trace "EV::run returned\n";
		3941	goto &main_loop unless $REALLY_UNLOOP;
		3942	}
		3943
2251	sub main {	3944	sub main {
		3945	cf::init_globals; # initialise logging
		3946
		3947	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3948	LOG llevInfo, "Copyright (C) 2017-2018 Marc Alexander Lehmann / the Deliantra team.";
		3949	LOG llevInfo, "Copyright (C) 2005-2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3950	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3951	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3952
		3953	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3954
2252	# we must not ever block the main coroutine	3955	# we must not ever block the main coroutine
2253	local $Coro::idle = sub {	3956	$Coro::idle = sub {
2254	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3957	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2255	async { Event::one_event };	3958	(async {
		3959	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3960	EV::run EV::RUN_ONCE;
		3961	})->prio (Coro::PRIO_MAX);
2256	};	3962	};
2257		3963
2258	cfg_load;	3964	evthread_start IO::AIO::poll_fileno;
2259	db_load;	3965
		3966	cf::sync_job {
		3967	cf::incloader::init ();
		3968
		3969	db_init;
		3970
		3971	cf::init_anim;
		3972	cf::init_attackmess;
		3973	cf::init_dynamic;
		3974
		3975	cf::load_settings;
		3976
		3977	reload_resources;
		3978	reload_config;
		3979
		3980	cf::init_uuid;
		3981	cf::init_signals;
		3982	cf::init_skills;
		3983
		3984	cf::init_beforeplay;
		3985
		3986	atomic;
		3987
2260	load_extensions;	3988	load_extensions;
2261	Event::loop;	3989
		3990	utime time, time, $RUNTIMEFILE;
		3991
		3992	# no (long-running) fork's whatsoever before this point(!)
		3993	use POSIX ();
		3994	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3995
		3996	cf::_post_init 0;
		3997	};
		3998
		3999	cf::object::thawer::errors_are_fatal 0;
		4000	info "parse errors in files are no longer fatal from this point on.\n";
		4001
		4002	AE::postpone {
		4003	undef &main; # free gobs of memory :)
		4004	};
		4005
		4006	goto &main_loop;
2262	}	4007	}
2263		4008
2264	#############################################################################	4009	#############################################################################
2265	# initialisation and cleanup	4010	# initialisation and cleanup
2266		4011
2267	# install some emergency cleanup handlers	4012	# install some emergency cleanup handlers
2268	BEGIN {	4013	BEGIN {
		4014	our %SIGWATCHER = ();
2269	for my $signal (qw(INT HUP TERM)) {	4015	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	4016	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2271	data => WF_AUTOCANCEL,
2272	signal => $signal,
2273	cb => sub {
2274	cf::cleanup "SIG$signal";	4017	cf::cleanup "SIG$signal";
2275	},
2276	);	4018	};
		4019	}
		4020	}
		4021
		4022	sub write_runtime_sync {
		4023	my $t0 = AE::time;
		4024
		4025	# first touch the runtime file to show we are still running:
		4026	# the fsync below can take a very very long time.
		4027
		4028	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4029
		4030	my $guard = cf::lock_acquire "write_runtime";
		4031
		4032	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		4033	or return;
		4034
		4035	my $value = $cf::RUNTIME + 90 + 10;
		4036	# 10 is the runtime save interval, for a monotonic clock
		4037	# 60 allows for the watchdog to kill the server.
		4038
		4039	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4040	and return;
		4041
		4042	# always fsync - this file is important
		4043	aio_fsync $fh
		4044	and return;
		4045
		4046	# touch it again to show we are up-to-date
		4047	aio_utime $fh, undef, undef;
		4048
		4049	close $fh
		4050	or return;
		4051
		4052	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4053	and return;
		4054
		4055	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4056
2277	}	4057	1
		4058	}
		4059
		4060	our $uuid_lock;
		4061	our $uuid_skip;
		4062
		4063	sub write_uuid_sync($) {
		4064	$uuid_skip ||= $_[0];
		4065
		4066	return if $uuid_lock;
		4067	local $uuid_lock = 1;
		4068
		4069	my $uuid = "$LOCALDIR/uuid";
		4070
		4071	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4072	or return;
		4073
		4074	my $value = uuid_seq uuid_cur;
		4075
		4076	unless ($value) {
		4077	info "cowardly refusing to write zero uuid value!\n";
		4078	return;
		4079	}
		4080
		4081	my $value = uuid_str $value + $uuid_skip;
		4082	$uuid_skip = 0;
		4083
		4084	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4085	and return;
		4086
		4087	# always fsync - this file is important
		4088	aio_fsync $fh
		4089	and return;
		4090
		4091	close $fh
		4092	or return;
		4093
		4094	aio_rename "$uuid~", $uuid
		4095	and return;
		4096
		4097	trace "uuid file written ($value).\n";
		4098
		4099	1
		4100
		4101	}
		4102
		4103	sub write_uuid($$) {
		4104	my ($skip, $sync) = @_;
		4105
		4106	$sync ? write_uuid_sync $skip
		4107	: async { write_uuid_sync $skip };
2278	}	4108	}
2279		4109
2280	sub emergency_save() {	4110	sub emergency_save() {
2281	my $freeze_guard = cf::freeze_mainloop;	4111	my $freeze_guard = cf::freeze_mainloop;
2282		4112
2283	warn "enter emergency perl save\n";	4113	info "emergency_perl_save: enter\n";
		4114
		4115	# this is a trade-off: we want to be very quick here, so
		4116	# save all maps without fsync, and later call a global sync
		4117	# (which in turn might be very very slow)
		4118	local $USE_FSYNC = 0;
2284		4119
2285	cf::sync_job {	4120	cf::sync_job {
		4121	cf::write_runtime_sync; # external watchdog should not bark
		4122
2286	# use a peculiar iteration method to avoid tripping on perl	4123	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	4124	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/Destroyed asynchronously.	4125	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	4126	info "emergency_perl_save: begin player save\n";
2290	for my $login (keys %cf::PLAYER) {	4127	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	4128	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	4129	$pl->valid or next;
		4130	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2293	$pl->save;	4131	$pl->save;
2294	}	4132	}
2295	warn "end emergency player save\n";	4133	info "emergency_perl_save: end player save\n";
2296		4134
2297	warn "begin emergency map save\n";	4135	cf::write_runtime_sync; # external watchdog should not bark
		4136
		4137	info "emergency_perl_save: begin map save\n";
2298	for my $path (keys %cf::MAP) {	4138	for my $path (keys %cf::MAP) {
2299	my $map = $cf::MAP{$path} or next;	4139	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	4140	$map->valid or next;
2301	$map->save;	4141	$map->save;
2302	}	4142	}
2303	warn "end emergency map save\n";	4143	info "emergency_perl_save: end map save\n";
		4144
		4145	cf::write_runtime_sync; # external watchdog should not bark
		4146
		4147	info "emergency_perl_save: begin database checkpoint\n";
		4148	BDB::db_env_txn_checkpoint $DB_ENV;
		4149	info "emergency_perl_save: end database checkpoint\n";
		4150
		4151	info "emergency_perl_save: begin write uuid\n";
		4152	write_uuid_sync 1;
		4153	info "emergency_perl_save: end write uuid\n";
		4154
		4155	cf::write_runtime_sync; # external watchdog should not bark
		4156
		4157	trace "emergency_perl_save: syncing database to disk";
		4158	BDB::db_env_txn_checkpoint $DB_ENV;
		4159
		4160	info "emergency_perl_save: starting sync\n";
		4161	IO::AIO::aio_sync sub {
		4162	info "emergency_perl_save: finished sync\n";
		4163	};
		4164
		4165	cf::write_runtime_sync; # external watchdog should not bark
		4166
		4167	trace "emergency_perl_save: flushing outstanding aio requests";
		4168	while (IO::AIO::nreqs || BDB::nreqs) {
		4169	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4170	}
		4171
		4172	cf::write_runtime_sync; # external watchdog should not bark
2304	};	4173	};
2305		4174
2306	warn "leave emergency perl save\n";	4175	info "emergency_perl_save: leave\n";
2307	}	4176	}
2308		4177
		4178	sub post_cleanup {
		4179	my ($make_core) = @_;
		4180
		4181	IO::AIO::flush;
		4182
		4183	error Carp::longmess "post_cleanup backtrace"
		4184	if $make_core;
		4185
		4186	my $fh = pidfile;
		4187	unlink $PIDFILE if <$fh> == $$;
		4188	}
		4189
		4190	# a safer delete_package, copied from Symbol
		4191	sub clear_package($) {
		4192	my $pkg = shift;
		4193
		4194	# expand to full symbol table name if needed
		4195	unless ($pkg =~ /^main::.*::$/) {
		4196	$pkg = "main$pkg" if $pkg =~ /^::/;
		4197	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4198	$pkg .= '::' unless $pkg =~ /::$/;
		4199	}
		4200
		4201	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4202	my $stem_symtab = *{$stem}{HASH};
		4203
		4204	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4205	or return;
		4206
		4207	# clear all symbols
		4208	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4209	for my $name (keys %$leaf_symtab) {
		4210	_gv_clear *{"$pkg$name"};
		4211	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4212	}
		4213	}
		4214
2309	sub reload() {	4215	sub do_reload_perl() {
2310	# can/must only be called in main	4216	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	4217	unless (in_main) {
2312	warn "can only reload from main coroutine\n";	4218	error "can only reload from main coroutine";
2313	return;	4219	return;
2314	}	4220	}
2315		4221
2316	warn "reloading...";	4222	return if $RELOAD++;
2317		4223
2318	my $guard = freeze_mainloop;	4224	my $t1 = AE::time;
		4225
		4226	while ($RELOAD) {
		4227	cf::get_slot 0.1, -1, "reload_perl";
		4228	info "perl_reload: reloading...";
		4229
		4230	trace "perl_reload: entering sync_job";
		4231
		4232	cf::sync_job {
2319	cf::emergency_save;	4233	#cf::emergency_save;
2320		4234
2321	eval {	4235	trace "perl_reload: cancelling all extension coros";
2322	# if anything goes wrong in here, we should simply crash as we already saved
2323
2324	# cancel all watchers
2325	for (Event::all_watchers) {
2326	$_->cancel if $_->data & WF_AUTOCANCEL;
2327	}
2328
2329	# cancel all extension coros
2330	$_->cancel for values %EXT_CORO;	4236	$_->cancel for values %EXT_CORO;
2331	%EXT_CORO = ();	4237	%EXT_CORO = ();
2332		4238
2333	# unload all extensions	4239	trace "perl_reload: removing commands";
2334	for (@exts) {	4240	%COMMAND = ();
2335	warn "unloading <$_>";
2336	unload_extension $_;
2337	}
2338		4241
2339	# unload all modules loaded from $LIBDIR	4242	trace "perl_reload: removing ext/exti commands";
2340	while (my ($k, $v) = each %INC) {	4243	%EXTCMD = ();
2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4244	%EXTICMD = ();
2342		4245
2343	warn "removing <$k>";	4246	trace "perl_reload: unloading/nuking all extensions";
2344	delete $INC{$k};	4247	for my $pkg (@EXTS) {
		4248	trace "... unloading $pkg";
2345		4249
2346	$k =~ s/\.pm$//;
2347	$k =~ s/\//::/g;
2348
2349	if (my $cb = $k->can ("unload_module")) {	4250	if (my $cb = $pkg->can ("unload")) {
		4251	eval {
2350	$cb->();	4252	$cb->($pkg);
		4253	1
		4254	} or error "$pkg unloaded, but with errors: $@";
		4255	}
		4256
		4257	trace "... clearing $pkg";
		4258	clear_package $pkg;
2351	}	4259	}
2352		4260
2353	Symbol::delete_package $k;	4261	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4262	while (my ($k, $v) = each %INC) {
		4263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4264
		4265	trace "... unloading $k";
		4266	delete $INC{$k};
		4267
		4268	$k =~ s/\.pm$//;
		4269	$k =~ s/\//::/g;
		4270
		4271	if (my $cb = $k->can ("unload_module")) {
		4272	$cb->();
		4273	}
		4274
		4275	clear_package $k;
2354	}	4276	}
2355		4277
2356	# sync database to disk
2357	cf::db_sync;
2358	IO::AIO::flush;
2359
2360	# get rid of safe::, as good as possible	4278	trace "perl_reload: getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	4279	clear_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4280	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		4281
2364	# remove register_script_function callbacks	4282	trace "perl_reload: unloading cf.pm \"a bit\"";
2365	# TODO
2366
2367	# unload cf.pm "a bit"
2368	delete $INC{"cf.pm"};	4283	delete $INC{"cf.pm"};
		4284	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2369		4285
2370	# don't, removes xs symbols, too,	4286	# don't, removes xs symbols, too,
2371	# and global variables created in xs	4287	# and global variables created in xs
2372	#Symbol::delete_package __PACKAGE__;	4288	#clear_package __PACKAGE__;
2373		4289
2374	# reload cf.pm	4290	info "perl_reload: unload completed, starting to reload now";
2375	warn "reloading cf.pm";	4291
		4292	trace "perl_reload: reloading cf.pm";
2376	require cf;	4293	require cf;
2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4294	cf::_connect_to_perl_1;
2378		4295
2379	# load config and database again	4296	trace "perl_reload: loading config and database again";
2380	cf::cfg_load;	4297	cf::reload_config;
2381	cf::db_load;
2382		4298
2383	# load extensions	4299	trace "perl_reload: loading extensions";
2384	warn "load extensions";
2385	cf::load_extensions;	4300	cf::load_extensions;
2386		4301
2387	# reattach attachments to objects	4302	if ($REATTACH_ON_RELOAD) {
2388	warn "reattach";	4303	trace "perl_reload: reattaching attachments to objects/players";
2389	_global_reattach;	4304	_global_reattach; # objects, sockets
		4305	trace "perl_reload: reattaching attachments to maps";
2390	reattach $_ for values %MAP;	4306	reattach $_ for values %MAP;
		4307	trace "perl_reload: reattaching attachments to players";
		4308	reattach $_ for values %PLAYER;
		4309	}
		4310
		4311	cf::_post_init 1;
		4312
		4313	trace "perl_reload: leaving sync_job";
		4314
		4315	1
		4316	} or do {
		4317	error $@;
		4318	cf::cleanup "perl_reload: error, exiting.";
		4319	};
		4320
		4321	--$RELOAD;
		4322	}
		4323
		4324	$t1 = AE::time - $t1;
		4325	info "perl_reload: completed in ${t1}s\n";
		4326	};
		4327
		4328	our $RELOAD_WATCHER; # used only during reload
		4329
		4330	sub reload_perl() {
		4331	# doing reload synchronously and two reloads happen back-to-back,
		4332	# coro crashes during coro_state_free->destroy here.
		4333
		4334	$RELOAD_WATCHER ||= cf::async {
		4335	Coro::AIO::aio_wait cache_extensions;
		4336
		4337	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4338	do_reload_perl;
		4339	undef $RELOAD_WATCHER;
		4340	};
2391	};	4341	};
2392
2393	if ($@) {
2394	warn $@;
2395	warn "error while reloading, exiting.";
2396	exit 1;
2397	}
2398
2399	warn "reloaded successfully";
2400	};
2401
2402	#############################################################################
2403
2404	unless ($LINK_MAP) {
2405	$LINK_MAP = cf::map::new;
2406
2407	$LINK_MAP->width (41);
2408	$LINK_MAP->height (41);
2409	$LINK_MAP->alloc;
2410	$LINK_MAP->path ("{link}");
2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2413
2414	# dirty hack because... archetypes are not yet loaded
2415	Event->timer (
2416	after => 10,
2417	cb => sub {
2418	$_[0]->w->cancel;
2419
2420	# provide some exits "home"
2421	my $exit = cf::object::new "exit";
2422
2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2426
2427	$LINK_MAP->insert ($exit->clone, 19, 19);
2428	$LINK_MAP->insert ($exit->clone, 19, 20);
2429	$LINK_MAP->insert ($exit->clone, 19, 21);
2430	$LINK_MAP->insert ($exit->clone, 20, 19);
2431	$LINK_MAP->insert ($exit->clone, 20, 21);
2432	$LINK_MAP->insert ($exit->clone, 21, 19);
2433	$LINK_MAP->insert ($exit->clone, 21, 20);
2434	$LINK_MAP->insert ($exit->clone, 21, 21);
2435
2436	$exit->destroy;
2437	});
2438
2439	$LINK_MAP->{deny_save} = 1;
2440	$LINK_MAP->{deny_reset} = 1;
2441
2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2443	}	4342	}
2444
2445	register "<global>", __PACKAGE__;
2446		4343
2447	register_command "reload" => sub {	4344	register_command "reload" => sub {
2448	my ($who, $arg) = @_;	4345	my ($who, $arg) = @_;
2449		4346
2450	if ($who->flag (FLAG_WIZ)) {	4347	if ($who->flag (FLAG_WIZ)) {
2451	$who->message ("start of reload.");
2452	reload;
2453	$who->message ("end of reload.");	4348	$who->message ("reloading server.");
		4349	async {
		4350	$Coro::current->{desc} = "perl_reload";
		4351	reload_perl;
		4352	};
2454	}	4353	}
2455	};	4354	};
2456		4355
2457	unshift @INC, $LIBDIR;	4356	#############################################################################
2458		4357
2459	$TICK_WATCHER = Event->timer (	4358	my $bug_warning = 0;
2460	reentrant => 0,
2461	prio => 0,
2462	at => $NEXT_TICK || $TICK,
2463	data => WF_AUTOCANCEL,
2464	cb => sub {
2465	cf::server_tick; # one server iteration
2466	$RUNTIME += $TICK;
2467	$NEXT_TICK += $TICK;
2468		4359
		4360	sub wait_for_tick() {
		4361	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4362
		4363	$WAIT_FOR_TICK->wait;
		4364	}
		4365
		4366	sub wait_for_tick_begin() {
		4367	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4368
		4369	my $signal = new Coro::Signal;
		4370	push @WAIT_FOR_TICK_BEGIN, $signal;
		4371	$signal->wait;
		4372	}
		4373
		4374	sub tick {
		4375	if ($Coro::current != $Coro::main) {
		4376	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4377	unless ++$bug_warning > 10;
		4378	return;
		4379	}
		4380
		4381	cf::one_tick; # one server iteration
		4382
		4383	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4384
		4385	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4386	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4387	Coro::async_pool {
		4388	$Coro::current->{desc} = "runtime saver";
		4389	write_runtime_sync
		4390	or error "ERROR: unable to write runtime file: $!";
		4391	};
		4392	}
		4393
		4394	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4395	$sig->send;
		4396	}
2469	$WAIT_FOR_TICK->broadcast;	4397	$WAIT_FOR_TICK->broadcast;
2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2471		4398
2472	# if we are delayed by four ticks or more, skip them all	4399	$LOAD = ($NOW - $TICK_START) / $TICK;
2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4400	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2474		4401
2475	$TICK_WATCHER->at ($NEXT_TICK);	4402	if (0) {
2476	$TICK_WATCHER->start;	4403	if ($NEXT_TICK) {
		4404	my $jitter = $TICK_START - $NEXT_TICK;
		4405	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4406	debug "jitter $JITTER\n";#d#
		4407	}
2477	},	4408	}
2478	);	4409	}
2479		4410
		4411	{
		4412	# configure BDB
		4413	info "initialising database";
		4414
		4415	BDB::min_parallel 16;
		4416	BDB::max_poll_reqs $TICK * 0.1;
		4417	#$AnyEvent::BDB::WATCHER->priority (1);
		4418
		4419	unless ($DB_ENV) {
		4420	$DB_ENV = BDB::db_env_create;
		4421	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4422	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4423	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4424	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4425	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4426
		4427	cf::sync_job {
		4428	eval {
		4429	BDB::db_env_open
		4430	$DB_ENV,
		4431	$BDBDIR,
		4432	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4434	0666;
		4435
		4436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4437	};
		4438
		4439	cf::cleanup "db_env_open(db): $@" if $@;
		4440	};
		4441	}
		4442
		4443	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4444	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4445	};
		4446	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4447	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4448	};
		4449	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4450	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4451	};
		4452
		4453	info "database initialised";
		4454	}
		4455
		4456	{
		4457	# configure IO::AIO
		4458
		4459	info "initialising aio";
		4460	IO::AIO::min_parallel 8;
2480	IO::AIO::max_poll_time $TICK * 0.2;	4461	IO::AIO::max_poll_time $TICK * 0.1;
		4462	undef $AnyEvent::AIO::WATCHER;
		4463	info "aio initialised";
		4464	}
2481		4465
2482	Event->io (	4466	our $_log_backtrace;
2483	fd => IO::AIO::poll_fileno,	4467	our $_log_backtrace_last;
2484	poll => 'r',
2485	prio => 5,
2486	data => WF_AUTOCANCEL,
2487	cb => \&IO::AIO::poll_cb,
2488	);
2489		4468
2490	Event->timer (	4469	sub _log_backtrace {
2491	data => WF_AUTOCANCEL,	4470	my ($msg, @addr) = @_;
2492	after => 0,	4471
2493	interval => 10,	4472	$msg =~ s/\n$//;
2494	cb => sub {	4473
2495	(Coro::unblock_sub {	4474	if ($_log_backtrace_last eq $msg) {
2496	write_runtime	4475	LOG llevInfo, "[ABT] $msg\n";
2497	or warn "ERROR: unable to write runtime file: $!";	4476	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4477	# limit the # of concurrent backtraces
		4478	} elsif ($_log_backtrace < 2) {
		4479	$_log_backtrace_last = $msg;
		4480	++$_log_backtrace;
		4481	my $perl_bt = Carp::longmess $msg;
		4482	async {
		4483	$Coro::current->{desc} = "abt $msg";
		4484
		4485	my @bt = fork_call {
		4486	@addr = map { sprintf "%x", $_ } @addr;
		4487	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4488	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4489	or die "addr2line: $!";
		4490
		4491	my @funcs;
		4492	my @res = <$fh>;
		4493	chomp for @res;
		4494	while (@res) {
		4495	my ($func, $line) = splice @res, 0, 2, ();
		4496	push @funcs, "[$func] $line";
		4497	}
		4498
		4499	@funcs
		4500	};
		4501
		4502	LOG llevInfo, "[ABT] $perl_bt\n";
		4503	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4504	LOG llevInfo, "[ABT] $_\n" for @bt;
		4505	--$_log_backtrace;
2498	})->();	4506	};
		4507	} else {
		4508	LOG llevInfo, "[ABT] $msg\n";
		4509	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2499	},	4510	}
2500	);	4511	}
		4512
		4513	# load additional modules
		4514	require "cf/$_.pm" for @EXTRA_MODULES;
		4515	cf::_connect_to_perl_2;
2501		4516
2502	END { cf::emergency_save }	4517	END { cf::emergency_save }
2503		4518
2504	1	4519	1
2505		4520

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