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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.257 by root, Sat Apr 21 17:34:24 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 Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
		36	use Carp ();
14		37
		38	use AnyEvent ();
		39	use AnyEvent::IO ();
		40	use AnyEvent::DNS ();
		41
15	use Coro 3.61 ();	42	use Coro ();
16	use Coro::State;	43	use Coro::State;
17	use Coro::Handle;	44	use Coro::Handle;
		45	use Coro::EV;
18	use Coro::Event;	46	use Coro::AnyEvent;
19	use Coro::Timer;	47	use Coro::Timer;
20	use Coro::Signal;	48	use Coro::Signal;
21	use Coro::Semaphore;	49	use Coro::Semaphore;
		50	use Coro::SemaphoreSet;
		51	use Coro::AnyEvent;
22	use Coro::AIO;	52	use Coro::AIO;
		53	use Coro::BDB 1.6;
23	use Coro::Storable;	54	use Coro::Storable;
		55	use Coro::Util ();
24		56
		57	use Guard ();
		58	use JSON::XS 2.01 ();
25	use BDB ();	59	use BDB ();
26	use Data::Dumper;	60	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	61	use Fcntl;
29	use YAML::Syck ();	62	use YAML::XS ();
		63	use CBOR::XS ();
30	use IO::AIO 2.32 ();	64	use IO::AIO ();
31	use Time::HiRes;
32	use Compress::LZF;	65	use Compress::LZF;
		66	use Digest::MD5 ();
		67
		68	AnyEvent::detect;
33		69
34	# configure various modules to our taste	70	# configure various modules to our taste
35	#	71	#
36	$Storable::canonical = 1; # reduce rsync transfers	72	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	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";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	79	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		80
40	$Event::Eval = 1; # no idea why this is required, but it is	81	# strictly for debugging
41		82	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		83
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	84	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		85
		86	our @ORIG_INC;
48		87
49	our %COMMAND = ();	88	our %COMMAND = ();
50	our %COMMAND_TIME = ();	89	our %COMMAND_TIME = ();
51		90
52	our @EXTS = (); # list of extension package names	91	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	92	our %EXTCMD = ();
		93	our %EXTACMD = ();
		94	our %EXTICMD = ();
		95	our %EXTIACMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	96	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	97	our %EXT_MAP = (); # pluggable maps
56		98
57	our $RELOAD; # number of reloads so far	99	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	100	our @EVENT;
		101	our @REFLECT; # set by XS
		102	our %REFLECT; # set by us
59		103
60	our $CONFDIR = confdir;	104	our $CONFDIR = confdir;
		105
61	our $DATADIR = datadir;	106	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	107	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	108	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	109	our $MAPDIR = "$DATADIR/" . mapdir;
		110
65	our $LOCALDIR = localdir;	111	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	112	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	113	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	114	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	115	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	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;
71		127
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	128	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	129	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	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;
77	our $NOW;	146	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		147
80	our $BDB_POLL_WATCHER;	148	our (%PLAYER, %PLAYER_LOADING); # all users
81	our $DB_ENV;	149	our (%MAP, %MAP_LOADING ); # all maps
82
83	our %CFG;
84
85	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;
87
88	our %PLAYER; # all users
89	our %MAP; # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	150	our $LINK_MAP; # the special {link} map, which is always available
91		151
92	# used to convert map paths into valid unix filenames by replacing / by ∕	152	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	153	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		154
		155	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		156	our $LOADAVG; # same thing, but with alpha-smoothing
		157	our $JITTER; # average jitter
		158	our $TICK_START; # for load detecting purposes
		159
		160	our @POST_INIT;
		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 $WAIT_FOR_TICK = new Coro::Signal;
		166	our @WAIT_FOR_TICK_BEGIN;
		167
95	binmode STDOUT;	168	binmode STDOUT;
96	binmode STDERR;	169	binmode STDERR;
97		170
98	# read virtual server time, if available	171	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	172	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	173	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	174	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	175	$RUNTIME = <$fh> + 0.;
103	}	176	}
		177
		178	eval "sub TICK() { $TICK } 1" or die;
104		179
105	mkdir $_	180	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	181	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		182
108	our $EMERGENCY_POSITION;	183	our $EMERGENCY_POSITION;
109		184
110	sub cf::map::normalise;	185	sub cf::map::normalise;
111		186
		187	sub in_main() {
		188	$Coro::current == $Coro::main
		189	}
		190
112	#############################################################################	191	#############################################################################
113		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
114	=head2 GLOBAL VARIABLES	204	=head2 GLOBAL VARIABLES
115		205
116	=over 4	206	=over 4
117		207
118	=item $cf::UPTIME	208	=item $cf::UPTIME
119		209
120	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.
121		226
122	=item $cf::RUNTIME	227	=item $cf::RUNTIME
123		228
124	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
125	every server tick.	230	every server tick.
126		231
127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR	232	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR	233	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR	234	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
130		235
131	Various directories - "/etc", read-only install directory, perl-library	236	Various directories - "/etc", read-only install directory, perl-library
132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",	237	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
133	unique-items directory, player file directory, random maps directory and	238	unique-items directory, player file directory, random maps directory and
134	database environment.	239	database environment.
135		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
136	=item $cf::NOW	247	=item $cf::LOAD
137		248
138	The time of the last (current) server tick.	249	The raw value load value from the last tick.
139
140	=item $cf::TICK
141
142	The interval between server ticks, in seconds.
143		250
144	=item %cf::CFG	251	=item %cf::CFG
145		252
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	253	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	254	from wherever your confdir points to.
148		255
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	256	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		257
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	258	These are functions that inhibit the current coroutine one tick.
152	returns directly I<after> the tick processing (and consequently, can only wake one process	259	cf::wait_for_tick_begin only returns directly I<after> the tick
		260	processing (and consequently, can only wake one thread per tick), while
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	261	cf::wait_for_tick wakes up all waiters after tick processing.
		262
		263	Note that cf::wait_for_tick will immediately return when the server is not
		264	ticking, making it suitable for small pauses in threads that need to run
		265	when the server is paused. If that is not applicable (i.e. you I<really>
		266	want to wait, use C<$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.
154		291
155	=back	292	=back
156		293
157	=cut	294	=cut
158		295
159	BEGIN {	296	sub error(@) { LOG llevError, join "", @_ }
160	*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 {
161	my $msg = join "", @_;	303	my $msg = join "", @_;
162		304
163	$msg .= "\n"	305	$msg .= "\n"
164	unless $msg =~ /\n$/;	306	unless $msg =~ /\n$/;
165		307
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	308	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		309
168	utf8::encode $msg;
169	LOG llevError, $msg;	310	LOG llevWarn, $msg;
170	};	311	};
171	}	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	};
172		326
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	327	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	328	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	329	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	330	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@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';
178	@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)
179		334
180	# 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
181	# within the Safe compartment.	336	# within the Safe compartment.
182	for my $pkg (qw(	337	for my $pkg (qw(
183	cf::global cf::attachable	338	cf::global cf::attachable
184	cf::object cf::object::player	339	cf::object cf::object::player
185	cf::client cf::player	340	cf::client cf::player
186	cf::arch cf::living	341	cf::arch cf::living
		342	cf::map cf::mapspace
187	cf::map cf::party cf::region	343	cf::party cf::region
188	)) {	344	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	345	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	346	}
192		347
193	$Event::DIED = sub {	348	$EV::DIED = sub {
194	warn "error in event callback: @_";	349	warn "error in event callback: $@";
195	};	350	};
		351
		352	#############################################################################
		353
		354	sub fork_call(&@);
		355	sub get_slot($;$$);
		356
		357	#############################################################################
196		358
197	=head2 UTILITY FUNCTIONS	359	=head2 UTILITY FUNCTIONS
198		360
199	=over 4	361	=over 4
200		362
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	381	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	382	$d
221	} || "[unable to dump $_[0]: '$@']";	383	} || "[unable to dump $_[0]: '$@']";
222	}	384	}
223		385
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	386	=item $scalar = cf::load_file $path
225		387
		388	Loads the given file from path and returns its contents. Croaks on error
		389	and can block.
		390
		391	=cut
		392
		393	sub load_file($) {
		394	0 <= aio_load $_[0], my $data
		395	or Carp::croak "$_[0]: $!";
		396
		397	$data
		398	}
		399
		400	=item $success = cf::replace_file $path, $data, $sync
		401
		402	Atomically replaces the file at the given $path with new $data, and
		403	optionally $sync the data to disk before replacing the file.
		404
		405	=cut
		406
		407	sub replace_file($$;$) {
		408	my ($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
226	=item $ref = cf::from_json $json	438	=item $ref = cf::decode_json $json
227		439
228	Converts a JSON string into the corresponding perl data structure.	440	Converts a JSON string into the corresponding perl data structure.
229		441
230	=item $json = cf::to_json $ref	442	=item $json = cf::encode_json $ref
231		443
232	Converts a perl data structure into its JSON representation.	444	Converts a perl data structure into its JSON representation.
233		445
		446	=cut
		447
		448	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		449
		450	sub encode_json($) { $json_coder->encode ($_[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	}
		527	}
		528
234	=item cf::lock_wait $string	529	=item cf::lock_wait $string
235		530
236	Wait until the given lock is available. See cf::lock_acquire.	531	Wait until the given lock is available. See cf::lock_acquire.
237		532
238	=item my $lock = cf::lock_acquire $string	533	=item my $lock = cf::lock_acquire $string
239		534
240	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
241	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,
242	for example when the coroutine gets canceled), the lock is automatically	537	for example when the coroutine gets canceled), the lock is automatically
243	returned.	538	returned.
244		539
		540	Locks are *not* recursive, locking from the same coro twice results in a
		541	deadlocked coro.
		542
245	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
246	uses map_find and cf::map::load uses map_load).	544	uses map_find and cf::map::load uses map_load).
247		545
248	=item $locked = cf::lock_active $string	546	=item $locked = cf::lock_active $string
249		547
250	Return true if the lock is currently active, i.e. somebody has locked it.	548	Return true if the lock is currently active, i.e. somebody has locked it.
251		549
252	=cut	550	=cut
253		551
254	our %LOCK;	552	our $LOCKS = new Coro::SemaphoreSet;
255		553
256	sub lock_wait($) {	554	sub lock_wait($) {
257	my ($key) = @_;	555	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	556	}
265		557
266	sub lock_acquire($) {	558	sub lock_acquire($) {
267	my ($key) = @_;	559	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	560	}
279		561
280	sub lock_active($) {	562	sub lock_active($) {
281	my ($key) = @_;	563	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	564	}
285		565
286	sub freeze_mainloop {	566	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	567	tick_inhibit_inc;
288		568
289	my $guard = Coro::guard {	569	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	570	}
		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($$) {
		580	my ($interval, $cb) = @_;
		581
		582	my $start = rand List::Util::min 180, $interval;
		583
		584	EV::periodic $start, $interval, 0, $cb
		585	}
		586
		587	=item cf::get_slot $time[, $priority[, $name]]
		588
		589	Allocate $time seconds of blocking CPU time at priority C<$priority>
		590	(default: 0): This call blocks and returns only when you have at least
		591	C<$time> seconds of cpu time till the next tick. The slot is only valid
		592	till the next cede.
		593
		594	Background jobs should use a priority less than zero, interactive jobs
		595	should use 100 or more.
		596
		597	The optional C<$name> can be used to identify the job to run. It might be
		598	used for statistical purposes and should identify the same time-class.
		599
		600	Useful for short background jobs.
		601
		602	=cut
		603
		604	our @SLOT_QUEUE;
		605	our $SLOT_QUEUE;
		606	our $SLOT_DECAY = 0.9;
		607
		608	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		609	$SLOT_QUEUE = Coro::async {
		610	$Coro::current->desc ("timeslot manager");
		611
		612	my $signal = new Coro::Signal;
		613	my $busy;
		614
		615	while () {
		616	next_job:
		617
		618	Coro::cede;
		619
		620	my $avail = cf::till_tick;
		621
		622	for (0 .. $#SLOT_QUEUE) {
		623	if ($SLOT_QUEUE[$_][0] <= $avail) {
		624	$busy = 0;
		625	my $job = splice @SLOT_QUEUE, $_, 1, ();
		626	$job->[2]->send;
		627	goto next_job;
		628	} else {
		629	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		630	}
		631	}
		632
		633	if (@SLOT_QUEUE) {
		634	wait_for_tick;
		635	} else {
		636	$busy = 0;
		637	Coro::schedule;
		638	}
291	};	639	}
292	$TICK_WATCHER->stop;	640	};
293	$guard	641
		642	sub get_slot($;$$) {
		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	$sig->wait;
294	}	655	}
295		656
296	=item cf::async { BLOCK }	657	=item cf::async { BLOCK }
297		658
298	Currently the same as Coro::async_pool, meaning you cannot use	659	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		664
304	BEGIN { *async = \&Coro::async_pool }	665	BEGIN { *async = \&Coro::async_pool }
305		666
306	=item cf::sync_job { BLOCK }	667	=item cf::sync_job { BLOCK }
307		668
308	The design of crossfire+ requires that the main coro ($Coro::main) is	669	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	670	is always able to handle events or is runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	671	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		672	acceptable.
311		673
312	If it must be done, put the blocking parts into C<sync_job>. This will run	674	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	675	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	676	server will be frozen during this time, so the block should either finish
315	fast or be very important.	677	fast or be very important.
…		…
317	=cut	679	=cut
318		680
319	sub sync_job(&) {	681	sub sync_job(&) {
320	my ($job) = @_;	682	my ($job) = @_;
321		683
322	if ($Coro::current == $Coro::main) {	684	if (in_main) {
		685	my $time = AE::time;
		686
323	# this is the main coro, too bad, we have to block	687	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	688	# till the operation succeeds, freezing the server :/
325		689
326	# TODO: use suspend/resume instead	690	#LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	691
328	my $freeze_guard = freeze_mainloop;	692	my $freeze_guard = freeze_mainloop;
329		693
330	my $busy = 1;	694	my $busy = 1;
331	my @res;	695	my @res;
332		696
333	(async {	697	(async {
		698	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	699	@res = eval { $job->() };
335	warn $@ if $@;	700	error $@ if $@;
336	undef $busy;	701	undef $busy;
337	})->prio (Coro::PRIO_MAX);	702	})->prio (Coro::PRIO_MAX);
338		703
339	while ($busy) {	704	while ($busy) {
340	Coro::cede or Event::one_event;	705	if (Coro::nready) {
		706	Coro::cede_notself;
		707	} else {
		708	EV::run EV::RUN_ONCE;
341	}	709	}
		710	}
		711
		712	my $time = AE::time - $time;
		713
		714	$TICK_START += $time; # do not account sync jobs to server load
342		715
343	wantarray ? @res : $res[0]	716	wantarray ? @res : $res[0]
344	} else {	717	} else {
345	# we are in another coroutine, how wonderful, everything just works	718	# we are in another coroutine, how wonderful, everything just works
346		719
…		…
366	$EXT_CORO{$coro+0} = $coro;	739	$EXT_CORO{$coro+0} = $coro;
367		740
368	$coro	741	$coro
369	}	742	}
370		743
371	sub write_runtime {	744	=item fork_call { }, @args
372	my $guard = cf::lock_acquire "write_runtime";
373		745
374	my $runtime = "$LOCALDIR/runtime";	746	Executes the given code block with the given arguments in a seperate
		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.
375		750
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	751	=cut
377	or return;
378		752
379	my $value = $cf::RUNTIME + 90 + 10;	753	sub post_fork {
380	# 10 is the runtime save interval, for a monotonic clock	754	reset_signals;
381	# 60 allows for the watchdog to kill the server.	755	}
382		756
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	757	sub fork_call(&@) {
384	and return;	758	my ($cb, @args) = @_;
385		759
386	# always fsync - this file is important	760	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	761	cf::post_fork;
388	and return;	762	&$cb
		763	} @args;
389		764
390	close $fh	765	wantarray ? @res : $res[-1]
391	or return;	766	}
392		767
393	aio_rename "$runtime~", $runtime	768	sub objinfo {
394	and return;
395
396	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"
397	}	932	}
398		933
399	=item cf::datalog type => key => value, ...	934	=item cf::datalog type => key => value, ...
400		935
401	Log a datalog packet of the given type with the given key-value pairs.	936	Log a datalog packet of the given type with the given key-value pairs.
402		937
403	=cut	938	=cut
404		939
405	sub datalog($@) {	940	sub datalog($@) {
406	my ($type, %kv) = @_;	941	my ($type, %kv) = @_;
407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	942	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
408	}	943	}
409		944
410	=back	945	=back
411		946
412	=cut	947	=cut
413		948
414	#############################################################################	949	#############################################################################
415		950
416	=head2 ATTACHABLE OBJECTS	951	=head2 ATTACHABLE OBJECTS
417		952
418	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
419	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")
420	to it. All such attachable objects support the following methods.	955	to it. All such attachable objects support the following methods.
421		956
422	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>
423	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
424	crossfire+).	959	Deliantra).
425		960
426	=over 4	961	=over 4
427		962
428	=item $attachable->attach ($attachment, key => $value...)	963	=item $attachable->attach ($attachment, key => $value...)
429		964
…		…
473	=item cf::CLASS::attachment $name, ...	1008	=item cf::CLASS::attachment $name, ...
474		1009
475	Register an attachment by C<$name> through which attachable objects of the	1010	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	1011	given CLASS can refer to this attachment.
477		1012
478	Some classes such as crossfire maps and objects can specify attachments	1013	Some classes such as deliantra maps and objects can specify attachments
479	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.
480		1015
481	These calls expect any number of the following handler/hook descriptions:	1016	These calls expect any number of the following handler/hook descriptions:
482		1017
483	=over 4	1018	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	1127	$registry = $CB_TYPE[$object_type] ||= [];
593		1128
594	} elsif ($type eq "subtype") {	1129	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	1130	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	1131	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1132	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		1133
599	} elsif ($type eq "package") {	1134	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	1135	my $pkg = shift @arg;
601		1136
602	while (my ($name, $id) = each %cb_id) {	1137	while (my ($name, $id) = each %cb_id) {
…		…
607		1142
608	} elsif (exists $cb_id{$type}) {	1143	} elsif (exists $cb_id{$type}) {
609	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1144	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
610		1145
611	} elsif (ref $type) {	1146	} elsif (ref $type) {
612	warn "attaching objects not supported, ignoring.\n";	1147	error "attaching objects not supported, ignoring.\n";
613		1148
614	} else {	1149	} else {
615	shift @arg;	1150	shift @arg;
616	warn "attach argument '$type' not supported, ignoring.\n";	1151	error "attach argument '$type' not supported, ignoring.\n";
617	}	1152	}
618	}	1153	}
619	}	1154	}
620		1155
621	sub _object_attach {	1156	sub _object_attach {
…		…
631	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
632	}	1167	}
633		1168
634	$obj->{$name} = \%arg;	1169	$obj->{$name} = \%arg;
635	} else {	1170	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	1171	info "object uses attachment '$name' which is not available, postponing.\n";
637	}	1172	}
638		1173
639	$obj->{_attachment}{$name} = undef;	1174	$obj->{_attachment}{$name} = undef;
640	}	1175	}
641		1176
…		…
643	if (ref $_[0]) {	1178	if (ref $_[0]) {
644	_object_attach @_;	1179	_object_attach @_;
645	} else {	1180	} else {
646	_attach shift->_attach_registry, @_;	1181	_attach shift->_attach_registry, @_;
647	}	1182	}
		1183	_recalc_want;
648	};	1184	};
649		1185
650	# all those should be optimised	1186	# all those should be optimised
651	sub cf::attachable::detach {	1187	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	1191	delete $obj->{_attachment}{$name};
656	reattach ($obj);	1192	reattach ($obj);
657	} else {	1193	} else {
658	Carp::croak "cannot, currently, detach class attachments";	1194	Carp::croak "cannot, currently, detach class attachments";
659	}	1195	}
		1196	_recalc_want;
660	};	1197	};
661		1198
662	sub cf::attachable::attached {	1199	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1200	my ($obj, $name) = @_;
664		1201
…		…
679	";	1216	";
680	die if $@;	1217	die if $@;
681	}	1218	}
682		1219
683	our $override;	1220	our $override;
684	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?
685		1222
686	sub override {	1223	sub override {
687	$override = 1;	1224	$override = 1;
688	@invoke_results = ();	1225	@INVOKE_RESULTS = (@_);
689	}	1226	}
690		1227
691	sub do_invoke {	1228	sub do_invoke {
692	my $event = shift;	1229	my $event = shift;
693	my $callbacks = shift;	1230	my $callbacks = shift;
694		1231
695	@invoke_results = ();	1232	@INVOKE_RESULTS = ();
696		1233
697	local $override;	1234	local $override;
698		1235
699	for (@$callbacks) {	1236	for (@$callbacks) {
700	eval { &{$_->[1]} };	1237	eval { &{$_->[1]} };
701		1238
702	if ($@) {	1239	if ($@) {
703	warn "$@";
704	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1240	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
705	override;	1241	override;
706	}	1242	}
707		1243
708	return 1 if $override;	1244	return 1 if $override;
709	}	1245	}
710		1246
711	0	1247	0
712	}	1248	}
713		1249
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1250	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1251
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1252	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1253
718	Generate an object-specific event with the given arguments.	1254	Generate an object-specific event with the given arguments.
719		1255
720	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
721	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
722	results (if you must, access C<@cf::invoke_results> directly).	1258	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1259
724	=back	1260	=back
725		1261
726	=cut	1262	=cut
727		1263
728	#############################################################################	1264	#############################################################################
729	# 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, $ob2
		1307	}
730		1308
731	sub reattach {	1309	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1310	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1311	my ($obj) = @_;
734		1312
		1313	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1314	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1315
737	my $registry = $obj->registry;	1316	my $registry = $obj->registry;
738		1317
739	@$registry = ();	1318	@$registry = ();
740		1319
…		…
745	for (@$attach) {	1324	for (@$attach) {
746	my ($klass, @attach) = @$_;	1325	my ($klass, @attach) = @$_;
747	_attach $registry, $klass, @attach;	1326	_attach $registry, $klass, @attach;
748	}	1327	}
749	} else {	1328	} else {
750	warn "object uses attachment '$name' that is not available, postponing.\n";	1329	info "object uses attachment '$name' that is not available, postponing.\n";
751	}	1330	}
752	}	1331	}
753	}	1332	}
754		1333
755	cf::attachable->attach (	1334	cf::attachable->attach (
756	prio => -1000000,	1335	prio => -1000000,
757	on_instantiate => sub {	1336	on_instantiate => sub {
758	my ($obj, $data) = @_;	1337	my ($obj, $data) = @_;
759		1338
760	$data = from_json $data;	1339	$data = decode_json $data;
761		1340
762	for (@$data) {	1341	for (@$data) {
763	my ($name, $args) = @$_;	1342	my ($name, $args) = @$_;
764		1343
765	$obj->attach ($name, %{$args || {} });	1344	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1360	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1361	my ($filename, $rdata, $objs) = @_;
783		1362
784	sync_job {	1363	sync_job {
785	if (length $$rdata) {	1364	if (length $$rdata) {
		1365	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1366	trace sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1367	$decname, length $$rdata, scalar @$objs
		1368	if $VERBOSE_IO;
788		1369
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1370	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1371	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1372	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1373	if ($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;
		1375	aio_fsync $fh;
		1376	}
793	close $fh;	1377	aio_close $fh;
794		1378
795	if (@$objs) {	1379	if (@$objs) {
796	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) {
797	chmod SAVE_MODE, $fh;	1381	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1382	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1383	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1384	if ($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;
		1386	aio_fsync $fh;
		1387	}
801	close $fh;	1388	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1389	aio_rename "$filename.pst~", "$filename.pst";
803	}	1390	}
804	} else {	1391	} else {
805	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
806	}	1393	}
807		1394
808	aio_rename "$filename~", $filename;	1395	aio_rename "$filename~", $filename;
		1396
		1397	$filename =~ s%/[^/]+$%%;
		1398	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1399	} else {
810	warn "FATAL: $filename~: $!\n";	1400	error "unable to save objects: $filename~: $!\n";
811	}	1401	}
812	} else {	1402	} else {
813	aio_unlink $filename;	1403	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1404	aio_unlink "$filename.pst";
815	}	1405	}
816	}	1406	};
817	}	1407	}
818		1408
819	sub object_freezer_as_string {	1409	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1410	my ($rdata, $objs) = @_;
821		1411
…		…
833	or return;	1423	or return;
834		1424
835	unless (aio_stat "$filename.pst") {	1425	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1426	(aio_load "$filename.pst", $av) >= 0
837	or return;	1427	or return;
		1428
838	$av = eval { (Storable::thaw $av)->{objs} };	1429	my $st = eval { Coro::Storable::thaw $av };
		1430	$av = $st->{objs};
839	}	1431	}
840		1432
		1433	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1434	trace sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1435	$decname, length $data, scalar @{$av || []}
		1436	if $VERBOSE_IO;
		1437
843	return ($data, $av);	1438	($data, $av)
844	}	1439	}
		1440
		1441	=head2 COMMAND CALLBACKS
		1442
		1443	=over 4
		1444
		1445	=cut
845		1446
846	#############################################################################	1447	#############################################################################
847	# command handling &c	1448	# command handling &c
848		1449
849	=item cf::register_command $name => \&callback($ob,$args);	1450	=item cf::register_command $name => \&callback($ob,$args)
850		1451
851	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
852	$name.	1453	$name.
853		1454
854	=cut	1455	=cut
…		…
860	#warn "registering command '$name/$time' to '$caller'";	1461	#warn "registering command '$name/$time' to '$caller'";
861		1462
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1463	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1464	}
864		1465
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1466	=item cf::register_extcmd $name => \&callback($pl,@args)
866		1467
867	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.
868		1473
869	If the callback returns something, it is sent back as if reply was being	1474	The values will be sent back to the client.
870	called.
871		1475
872	=cut	1476	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
873		1477
		1478	Same as C<cf::register_extcmd>, but instead of returning values, the
		1479	callback needs to clal the C<$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
874	sub register_extcmd {	1498	sub register_extcmd($$) {
875	my ($name, $cb) = @_;	1499	my ($name, $cb) = @_;
876		1500
877	$EXTCMD{$name} = $cb;	1501	$EXTCMD{$name} = $cb;
878	}	1502	}
879		1503
		1504	sub register_async_extcmd($$) {
		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} = $cb;
		1520	}
		1521
		1522	use File::Glob ();
		1523
880	cf::player->attach (	1524	cf::player->attach (
881	on_command => sub {	1525	on_unknown_command => sub {
882	my ($pl, $name, $params) = @_;	1526	my ($pl, $name, $params) = @_;
883		1527
884	my $cb = $COMMAND{$name}	1528	my $cb = $COMMAND{$name}
885	or return;	1529	or return;
886		1530
…		…
891	cf::override;	1535	cf::override;
892	},	1536	},
893	on_extcmd => sub {	1537	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1538	my ($pl, $buf) = @_;
895		1539
896	my $msg = eval { from_json $buf };	1540	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1541
898	if (ref $msg) {	1542	if (ref $msg) {
		1543	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1544
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1545	if (my $cb = $EXTACMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1546	$cb->(
901	$pl->ext_reply ($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);
902	}	1559	}
		1560
		1561	$pl->ext_msg ("reply-$reply", @reply)
		1562	if $reply;
903	}	1563	}
		1564
904	} else {	1565	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1566	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1567	}
907		1568
908	cf::override;	1569	cf::override;
909	},	1570	},
910	);	1571	);
911		1572
		1573	# "readahead" all extensions
912	sub load_extension {	1574	sub cache_extensions {
913	my ($path) = @_;	1575	my $grp = IO::AIO::aio_group;
914		1576
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1578	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1579	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1580	}
940	die $@;
941	}	1581	};
942		1582
943	push @EXTS, $pkg;	1583	$grp
		1584	}
		1585
		1586	sub _ext_cfg_reg($$$$) {
		1587	my ($rvar, $varname, $cfgname, $default) = @_;
		1588
		1589	$cfgname = lc $varname
		1590	unless length $cfgname;
		1591
		1592	$EXT_CFG{$cfgname} = [$rvar, $default];
		1593
		1594	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
944	}	1595	}
945		1596
946	sub load_extensions {	1597	sub load_extensions {
		1598	info "loading extensions...";
		1599
		1600	%EXT_CFG = ();
		1601
		1602	cf::sync_job {
		1603	my %todo;
		1604
947	for my $ext (<$LIBDIR/*.ext>) {	1605	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1606	next unless -r $path;
949	eval {	1607
950	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 $active;
		1679	}
951	1	1680	}
952	} or warn "$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	}
953	}	1693	};
954	}	1694	}
955		1695
956	#############################################################################	1696	#############################################################################
957		1697
		1698	=back
		1699
958	=head2 CORE EXTENSIONS	1700	=head2 CORE EXTENSIONS
959		1701
960	Functions and methods that extend core crossfire objects.	1702	Functions and methods that extend core deliantra objects.
961		1703
962	=cut	1704	=cut
963		1705
964	package cf::player;	1706	package cf::player;
965		1707
966	use Coro::AIO;	1708	use Coro::AIO;
967		1709
968	=head3 cf::player	1710	=head3 cf::player
969		1711
970	=over 4	1712	=over 4
		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	}
971		1727
972	=item cf::player::find $login	1728	=item cf::player::find $login
973		1729
974	Returns the given player object, loading it if necessary (might block).	1730	Returns the given player object, loading it if necessary (might block).
975		1731
…		…
994		1750
995	sub exists($) {	1751	sub exists($) {
996	my ($login) = @_;	1752	my ($login) = @_;
997		1753
998	$cf::PLAYER{$login}	1754	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1755	or !aio_stat path $login
1000	}	1756	}
1001		1757
1002	sub find($) {	1758	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1759	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1760	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1767	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1768	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1769	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1770	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1771
1016	my $pl = load_pl path $login	1772	my $f = new_from_file cf::object::thawer path $login
1017	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;
1018	$cf::PLAYER{$login} = $pl	1780	$cf::PLAYER{$login} = $pl
1019	}	1781	}
1020	}	1782	}
1021	}	1783	}
		1784
		1785	cf::player->attach (
		1786	on_load => sub {
		1787	my ($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	);
1022		1797
1023	sub save($) {	1798	sub save($) {
1024	my ($pl) = @_;	1799	my ($pl) = @_;
1025		1800
1026	return if $pl->{deny_save};	1801	return if $pl->{deny_save};
…		…
1031	return if $pl->{deny_save};	1806	return if $pl->{deny_save};
1032		1807
1033	aio_mkdir playerdir $pl, 0770;	1808	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1809	$pl->{last_save} = $cf::RUNTIME;
1035		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
1036	$pl->save_pl ($path);	1816	$pl->save_pl ($path);
1037	Coro::cede;	1817	cf::cede_to_tick;
1038	}	1818	}
1039		1819
1040	sub new($) {	1820	sub new($) {
1041	my ($login) = @_;	1821	my ($login) = @_;
1042		1822
…		…
1048	$cf::PLAYER{$login} = $self;	1828	$cf::PLAYER{$login} = $self;
1049		1829
1050	$self	1830	$self
1051	}	1831	}
1052		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
1053	=item $pl->quit_character	1843	=item $pl->quit_character
1054		1844
1055	Nukes the player without looking back. If logged in, the connection will	1845	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1846	be destroyed. May block for a long time.
1057		1847
…		…
1061	my ($pl) = @_;	1851	my ($pl) = @_;
1062		1852
1063	my $name = $pl->ob->name;	1853	my $name = $pl->ob->name;
1064		1854
1065	$pl->{deny_save} = 1;	1855	$pl->{deny_save} = 1;
1066	$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
1067		1857
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1858	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1069	$pl->deactivate;	1859	$pl->deactivate;
		1860
		1861	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1862	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1863	ext::highscore::check ($pl->ob);
		1864
1071	$pl->ns->destroy if $pl->ns;	1865	$pl->ns->destroy if $pl->ns;
1072		1866
1073	my $path = playerdir $pl;	1867	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1868	my $temp = "$path~$cf::RUNTIME~deleting~";
1075	aio_rename $path, $temp;	1869	aio_rename $path, $temp;
…		…
1110	or return [];	1904	or return [];
1111		1905
1112	my @logins;	1906	my @logins;
1113		1907
1114	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") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1914	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1915	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1916	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1917	}
1118		1918
1119	utf8::decode $login;	1919	utf8::decode $login;
1120	push @logins, $login;	1920	push @logins, $login;
1121	}	1921	}
1122		1922
1123	\@logins	1923	\@logins
1124	}	1924	}
1125		1925
1126	=item $player->maps	1926	=item $player->maps
		1927
		1928	=item cf::player::maps $login
1127		1929
1128	Returns an arrayref of map paths that are private for this	1930	Returns an arrayref of map paths that are private for this
1129	player. May block.	1931	player. May block.
1130		1932
1131	=cut	1933	=cut
…		…
1149	}	1951	}
1150		1952
1151	\@paths	1953	\@paths
1152	}	1954	}
1153		1955
1154	=item $player->ext_reply ($msgid, %msg)	1956	=item $protocol_xml = $player->expand_cfpod ($cfpod)
1155		1957
1156	Sends an ext reply to the player.	1958	Expand deliantra pod fragments into protocol xml.
1157		1959
1158	=cut
1159
1160	sub ext_reply($$%) {
1161	my ($self, $id, %msg) = @_;
1162
1163	$msg{msgid} = $id;
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}
1167
1168	=item $player->ext_event ($type, %msg)	1960	=item $player->ext_msg ($type, @msg)
1169		1961
1170	Sends an ext event to the client.	1962	Sends an ext event to the client.
1171		1963
1172	=cut	1964	=cut
1173		1965
1174	sub ext_event($$%) {	1966	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1967	my ($self, $type, @msg) = @_;
1176		1968
1177	$self->ns->ext_event ($type, %msg);	1969	$self->ns->ext_msg ($type, @msg);
1178	}	1970	}
1179		1971
1180	=head3 cf::region	1972	=head3 cf::region
1181		1973
1182	=over 4	1974	=over 4
…		…
1185		1977
1186	package cf::region;	1978	package cf::region;
1187		1979
1188	=item cf::region::find_by_path $path	1980	=item cf::region::find_by_path $path
1189		1981
1190	Tries to decuce the probable region for a map knowing only its path.	1982	Tries to decuce the likely region for a map knowing only its path.
1191		1983
1192	=cut	1984	=cut
1193		1985
1194	sub find_by_path($) {	1986	sub find_by_path($) {
1195	my ($path) = @_;	1987	my ($path) = @_;
1196		1988
		1989	$path =~ s/^~[^\/]*//; # skip ~login
		1990
1197	my ($match, $specificity);	1991	my ($match, $specificity);
1198		1992
1199	for my $region (list) {	1993	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1994	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1995	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1996	if $region->specificity > $specificity;
1203	}	1997	}
1204	}	1998	}
1205		1999
…		…
1226	our $MAX_RESET = 3600;	2020	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	2021	our $DEFAULT_RESET = 3000;
1228		2022
1229	sub generate_random_map {	2023	sub generate_random_map {
1230	my ($self, $rmp) = @_;	2024	my ($self, $rmp) = @_;
1231	# mit "rum" bekleckern, nicht	2025
		2026	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2027
1232	$self->_create_random_map (	2028	$self->_create_random_map ($rmp);
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1236	$rmp->{exit_on_final_map},
1237	$rmp->{xsize}, $rmp->{ysize},
1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1243	(cf::region::find $rmp->{region}), $rmp->{custom}
1244	)
1245	}	2029	}
1246		2030
1247	=item cf::map->register ($regex, $prio)	2031	=item cf::map->register ($regex, $prio)
1248		2032
1249	Register a handler for the map path matching the given regex at the	2033	Register a handler for the map path matching the given regex at the
…		…
1254		2038
1255	sub register {	2039	sub register {
1256	my (undef, $regex, $prio) = @_;	2040	my (undef, $regex, $prio) = @_;
1257	my $pkg = caller;	2041	my $pkg = caller;
1258		2042
1259	no strict;
1260	push @{"$pkg\::ISA"}, __PACKAGE__;	2043	push @{"$pkg\::ISA"}, __PACKAGE__;
1261		2044
1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2045	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1263	}	2046	}
1264		2047
1265	# also paths starting with '/'	2048	# also paths starting with '/'
1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2049	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1267		2050
1268	sub thawer_merge {	2051	sub thawer_merge {
1269	my ($self, $merge) = @_;	2052	my ($self, $merge) = @_;
1270		2053
1271	# we have to keep some variables in memory intact	2054	# we have to keep some variables in memory intact
1272	local $self->{path};	2055	local $self->{path};
1273	local $self->{load_path};	2056	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		2057
1277	$self->SUPER::thawer_merge ($merge);	2058	$self->SUPER::thawer_merge ($merge);
1278	}	2059	}
1279		2060
1280	sub normalise {	2061	sub normalise {
1281	my ($path, $base) = @_;	2062	my ($path, $base) = @_;
1282		2063
1283	$path = "$path"; # make sure its a string	2064	$path = "$path"; # make sure it's a string
1284		2065
1285	$path =~ s/\.map$//;	2066	$path =~ s/\.map$//;
1286		2067
1287	# map plan:	2068	# map plan:
1288	#	2069	#
…		…
1303	$base =~ s{[^/]+/?$}{};	2084	$base =~ s{[^/]+/?$}{};
1304	$path = "$base/$path";	2085	$path = "$base/$path";
1305	}	2086	}
1306		2087
1307	for ($path) {	2088	for ($path) {
1308	redo if s{//}{/};
1309	redo if s{/\.?/}{/};	2089	redo if s{/\.?/}{/};
1310	redo if s{/[^/]+/\.\./}{/};	2090	redo if s{/[^/]+/\.\./}{/};
1311	}	2091	}
1312		2092
1313	$path	2093	$path
…		…
1327	$self->init; # pass $1 etc.	2107	$self->init; # pass $1 etc.
1328	return $self;	2108	return $self;
1329	}	2109	}
1330	}	2110	}
1331		2111
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	2112	Carp::cluck "unable to resolve path '$path' (base '$base')";
1333	()	2113	()
1334	}	2114	}
1335		2115
		2116	# may re-bless or do other evil things
1336	sub init {	2117	sub init {
1337	my ($self) = @_;	2118	my ($self) = @_;
1338		2119
1339	$self	2120	$self
1340	}	2121	}
…		…
1359		2140
1360	# the temporary/swap location	2141	# the temporary/swap location
1361	sub save_path {	2142	sub save_path {
1362	my ($self) = @_;	2143	my ($self) = @_;
1363		2144
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2145	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	2146	"$TMPDIR/$path.map"
1366	}	2147	}
1367		2148
1368	# the unique path, undef == no special unique path	2149	# the unique path, undef == no special unique path
1369	sub uniq_path {	2150	sub uniq_path {
1370	my ($self) = @_;	2151	my ($self) = @_;
1371		2152
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2153	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	2154	"$UNIQUEDIR/$path"
1374	}	2155	}
1375		2156
1376	# and all this just because we cannot iterate over	2157	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	2158	my ($self) = @_;
1380		2159
1381	$_->change_map_light ($change)	2160	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	2161
		2162	$self->do_decay_objects;
1383	}	2163	}
1384		2164
1385	sub unlink_save {	2165	sub unlink_save {
1386	my ($self) = @_;	2166	my ($self) = @_;
1387		2167
…		…
1392		2172
1393	sub load_header_from($) {	2173	sub load_header_from($) {
1394	my ($self, $path) = @_;	2174	my ($self, $path) = @_;
1395		2175
1396	utf8::encode $path;	2176	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	2177	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	2178	or return;
1402		2179
		2180	$self->_load_header ($f)
		2181	or return;
		2182
		2183	local $MAP_LOADING{$self->{path}} = $self;
		2184	$f->resolve_delayed_derefs;
		2185
1403	$self->{load_path} = $path;	2186	$self->{load_path} = $path;
1404		2187
1405	1	2188	1
1406	}	2189	}
1407		2190
		2191	# used to laod the header of an original map
1408	sub load_header_orig {	2192	sub load_header_orig {
1409	my ($self) = @_;	2193	my ($self) = @_;
1410		2194
1411	$self->load_header_from ($self->load_path)	2195	$self->load_header_from ($self->load_path)
1412	}	2196	}
1413		2197
		2198	# used to laod the header of an instantiated map
1414	sub load_header_temp {	2199	sub load_header_temp {
1415	my ($self) = @_;	2200	my ($self) = @_;
1416		2201
1417	$self->load_header_from ($self->save_path)	2202	$self->load_header_from ($self->save_path)
1418	}	2203	}
1419		2204
		2205	# called after loading the header from an instantiated map
1420	sub prepare_temp {	2206	sub prepare_temp {
1421	my ($self) = @_;	2207	my ($self) = @_;
1422		2208
1423	$self->last_access ((delete $self->{last_access})	2209	$self->last_access ((delete $self->{last_access})
1424	|| $cf::RUNTIME); #d#	2210	|| $cf::RUNTIME); #d#
1425	# safety	2211	# safety
1426	$self->{instantiate_time} = $cf::RUNTIME	2212	$self->{instantiate_time} = $cf::RUNTIME
1427	if $self->{instantiate_time} > $cf::RUNTIME;	2213	if $self->{instantiate_time} > $cf::RUNTIME;
1428	}	2214	}
1429		2215
		2216	# called after loading the header from an original map
1430	sub prepare_orig {	2217	sub prepare_orig {
1431	my ($self) = @_;	2218	my ($self) = @_;
1432		2219
1433	$self->{load_original} = 1;	2220	$self->{load_original} = 1;
1434	$self->{instantiate_time} = $cf::RUNTIME;	2221	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1445	$self->load_header_orig	2232	$self->load_header_orig
1446	or return;	2233	or return;
1447	$self->prepare_orig;	2234	$self->prepare_orig;
1448	}	2235	}
1449		2236
		2237	$self->{deny_reset} = 1
		2238	if $self->no_reset;
		2239
1450	$self->default_region (cf::region::find_by_path $self->{path})	2240	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	2241	unless $self->default_region;
1452		2242
1453	1	2243	1
1454	}	2244	}
1455		2245
1456	sub find;	2246	sub find;
1457	sub find {	2247	sub find {
1458	my ($path, $origin) = @_;	2248	my ($path, $origin) = @_;
1459		2249
		2250	cf::cede_to_tick;
		2251
1460	$path = normalise $path, $origin && $origin->path;	2252	$path = normalise $path, $origin;
1461		2253
		2254	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	2255	my $guard2 = cf::lock_acquire "map_find:$path";
1463		2256
1464	$cf::MAP{$path} || do {	2257	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2258	my $map = new_from_path cf::map $path
1467	or return;	2259	or return;
1468		2260
1469	$map->{last_save} = $cf::RUNTIME;	2261	$map->{last_save} = $cf::RUNTIME;
1470		2262
1471	$map->load_header	2263	$map->load_header
1472	or return;	2264	or return;
1473		2265
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2266	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2267	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2268	#$cf::WAIT_FOR_TICK->wait;
		2269	undef $guard2;
		2270	undef $guard1;
1477	$map->reset;	2271	$map->reset;
1478	undef $guard;
1479	return find $path;	2272	return find $path;
1480	}	2273	}
1481		2274
1482	$cf::MAP{$path} = $map	2275	$cf::MAP{$path} = $map
1483	}	2276	}
1484	}	2277	}
1485		2278
1486	sub pre_load { }	2279	sub pre_load { }
1487	sub post_load { }	2280	#sub post_load { } # XS
1488		2281
1489	sub load {	2282	sub load {
1490	my ($self) = @_;	2283	my ($self) = @_;
1491		2284
1492	local $self->{deny_reset} = 1; # loading can take a long time	2285	local $self->{deny_reset} = 1; # loading can take a long time
1493		2286
1494	my $path = $self->{path};	2287	my $path = $self->{path};
1495		2288
1496	{	2289	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2290	my $guard = cf::lock_acquire "map_data:$path";
1498		2291
		2292	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2293	return unless $self->state == cf::MAP_SWAPPED;
1500
1501	$self->in_memory (cf::MAP_LOADING);
1502		2294
1503	$self->alloc;	2295	$self->alloc;
1504		2296
1505	$self->pre_load;	2297	$self->pre_load;
1506	Coro::cede;	2298	cf::cede_to_tick;
1507		2299
1508	$self->_load_objects ($self->{load_path}, 1)	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)
1509	or return;	2304	or return;
1510		2305
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2306	$self->post_load_original
1512	if delete $self->{load_original};	2307	if delete $self->{load_original};
1513		2308
1514	if (my $uniq = $self->uniq_path) {	2309	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2310	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2311	unless (aio_stat $uniq) {
		2312	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2313	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2314	$self->_load_objects ($f);
		2315	$f->resolve_delayed_derefs;
		2316	}
		2317	}
1519	}	2318	}
1520	}
1521		2319
1522	Coro::cede;	2320	$f->resolve_delayed_derefs;
		2321	} else {
		2322	$self->post_load_original
		2323	if delete $self->{load_original};
		2324	}
		2325
		2326	$self->state (cf::MAP_INACTIVE);
		2327
		2328	cf::cede_to_tick;
1523	# now do the right thing for maps	2329	# now do the right thing for maps
1524	$self->link_multipart_objects;	2330	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2331	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2332	unless $self->difficulty;
1527	Coro::cede;	2333	cf::cede_to_tick;
1528		2334
1529	unless ($self->{deny_activate}) {	2335	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2336	$self->decay_objects;
1531	$self->fix_auto_apply;	2337	$self->fix_auto_apply;
1532	$self->update_buttons;	2338	$self->update_buttons;
1533	Coro::cede;	2339	cf::cede_to_tick;
1534	$self->set_darkness_map;	2340	#$self->activate; # no longer activate maps automatically
1535	Coro::cede;
1536	$self->activate;
1537	}	2341	}
1538		2342
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2343	$self->{last_save} = $cf::RUNTIME;
		2344	$self->last_access ($cf::RUNTIME);
1540	}	2345	}
1541		2346
1542	$self->post_load;	2347	$self->post_load;
1543	}
1544		2348
		2349	1
		2350	}
		2351
		2352	# customize the map for a given player, i.e.
		2353	# return the _real_ map. used by e.g. per-player
		2354	# maps to change the path to ~playername/mappath
1545	sub customise_for {	2355	sub customise_for {
1546	my ($self, $ob) = @_;	2356	my ($self, $ob) = @_;
1547		2357
1548	return find "~" . $ob->name . "/" . $self->{path}	2358	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2359	if $self->per_player;
1550		2360
		2361	# return find "?party/" . $ob->name . "/" . $self->{path}
		2362	# if $self->per_party;
		2363
1551	$self	2364	$self
1552	}
1553
1554	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {
1556	my ($map) = @_;
1557
1558	my @diag; # diagonal neighbours
1559
1560	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)
1562	or next;
1563	$neigh = find $neigh, $map
1564	or next;
1565	$neigh->load;
1566
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}
1570
1571	for (@diag) {
1572	my $neigh = find @$_
1573	or next;
1574	$neigh->load;
1575	}
1576	}	2365	}
1577		2366
1578	sub find_sync {	2367	sub find_sync {
1579	my ($path, $origin) = @_;	2368	my ($path, $origin) = @_;
1580		2369
1581	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
1582	}	2375	}
1583		2376
1584	sub do_load_sync {	2377	sub do_load_sync {
1585	my ($map) = @_;	2378	my ($map) = @_;
1586		2379
1587	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;
1588	}	2385	}
1589		2386
1590	our %MAP_PREFETCH;	2387	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2388	our $MAP_PREFETCHER = undef;
1592		2389
1593	sub find_async {	2390	sub find_async {
1594	my ($path, $origin) = @_;	2391	my ($path, $origin, $load) = @_;
1595		2392
1596	$path = normalise $path, $origin && $origin->{path};	2393	$path = normalise $path, $origin;
1597		2394
1598	if (my $map = $cf::MAP{$path}) {	2395	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2396	return $map if !$load || $map->linkable;
1600	}	2397	}
1601		2398
1602	undef $MAP_PREFETCH{$path};	2399	$MAP_PREFETCH{$path} |= $load;
		2400
1603	$MAP_PREFETCHER ||= cf::async {	2401	$MAP_PREFETCHER ||= cf::async {
		2402	$Coro::current->{desc} = "map prefetcher";
		2403
1604	while (%MAP_PREFETCH) {	2404	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2405	for my $k (keys %MAP_PREFETCH) {
1606	my $map = find $path	2406	if (my $map = find $k) {
1607	or next;	2407	$map->load if $MAP_PREFETCH{$k};
1608	$map->load;	2408	}
1609		2409
1610	delete $MAP_PREFETCH{$path};	2410	delete $MAP_PREFETCH{$k};
1611	}	2411	}
1612	}	2412	}
1613	undef $MAP_PREFETCHER;	2413	undef $MAP_PREFETCHER;
1614	};	2414	};
1615	$MAP_PREFETCHER->prio (6);	2415	$MAP_PREFETCHER->prio (6);
1616		2416
1617	()	2417	()
1618	}	2418	}
1619		2419
		2420	# common code, used by both ->save and ->swapout
1620	sub save {	2421	sub _save {
1621	my ($self) = @_;	2422	my ($self) = @_;
1622
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
1624		2423
1625	$self->{last_save} = $cf::RUNTIME;	2424	$self->{last_save} = $cf::RUNTIME;
1626		2425
1627	return unless $self->dirty;	2426	return unless $self->dirty;
1628		2427
…		…
1634	return if $self->{deny_save};	2433	return if $self->{deny_save};
1635		2434
1636	local $self->{last_access} = $self->last_access;#d#	2435	local $self->{last_access} = $self->last_access;#d#
1637		2436
1638	cf::async {	2437	cf::async {
		2438	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2439	$_->contr->save for $self->players;
1640	};	2440	};
		2441
		2442	cf::get_slot 0.02;
1641		2443
1642	if ($uniq) {	2444	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2445	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2446	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2447	} else {
1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2448	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1647	}	2449	}
1648	}	2450	}
1649		2451
		2452	sub save {
		2453	my ($self) = @_;
		2454
		2455	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2456
		2457	$self->_save;
		2458	}
		2459
1650	sub swap_out {	2460	sub swap_out {
1651	my ($self) = @_;	2461	my ($self) = @_;
1652		2462
1653	# save first because save cedes
1654	$self->save;
1655
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2463	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2464
		2465	return if !$self->linkable;
		2466	return if $self->{deny_save};
1658	return if $self->players;	2467	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1660	return if $self->{deny_save};
1661		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
1662	$self->clear;	2478	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2479	}
1665		2480
1666	sub reset_at {	2481	sub reset_at {
1667	my ($self) = @_;	2482	my ($self) = @_;
1668		2483
1669	# TODO: safety, remove and allow resettable per-player maps	2484	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2485	return 1e99 if $self->{deny_reset};
1672		2486
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2487	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	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;
1675		2489
…		…
1686	my ($self) = @_;	2500	my ($self) = @_;
1687		2501
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2502	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2503
1690	return if $self->players;	2504	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2505
1693	warn "resetting map ", $self->path;#d#	2506	cf::trace "resetting map ", $self->path, "\n";
1694		2507
1695	$self->in_memory (cf::MAP_SWAPPED);	2508	$self->state (cf::MAP_SWAPPED);
1696		2509
1697	# need to save uniques path	2510	# need to save uniques path
1698	unless ($self->{deny_save}) {	2511	unless ($self->{deny_save}) {
1699	my $uniq = $self->uniq_path; utf8::encode $uniq;	2512	my $uniq = $self->uniq_path; utf8::encode $uniq;
1700		2513
…		…
1702	if $uniq;	2515	if $uniq;
1703	}	2516	}
1704		2517
1705	delete $cf::MAP{$self->path};	2518	delete $cf::MAP{$self->path};
1706		2519
		2520	$self->deactivate;
		2521	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2522	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2523
1711	$self->unlink_save;	2524	$self->unlink_save;
1712	$self->destroy;	2525	$self->destroy;
1713	}	2526	}
1714		2527
1715	my $nuke_counter = "aaaa";	2528	my $nuke_counter = "aaaa";
1716		2529
1717	sub nuke {	2530	sub nuke {
1718	my ($self) = @_;	2531	my ($self) = @_;
1719		2532
		2533	{
		2534	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2535
1720	delete $cf::MAP{$self->path};	2536	delete $cf::MAP{$self->path};
1721		2537
1722	$self->unlink_save;	2538	$self->unlink_save;
1723		2539
1724	bless $self, "cf::map";	2540	bless $self, "cf::map::wrap";
1725	delete $self->{deny_reset};	2541	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2542	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2543	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2544	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2545
1730	$cf::MAP{$self->path} = $self;	2546	$cf::MAP{$self->path} = $self;
		2547	}
1731		2548
1732	$self->reset; # polite request, might not happen	2549	$self->reset; # polite request, might not happen
		2550	}
		2551
		2552	=item $maps = cf::map::tmp_maps
		2553
		2554	Returns an arrayref with all map paths of currently instantiated and saved
		2555	maps. May block.
		2556
		2557	=cut
		2558
		2559	sub tmp_maps() {
		2560	[
		2561	map {
		2562	utf8::decode $_;
		2563	/\.map$/
		2564	? normalise $_
		2565	: ()
		2566	} @{ aio_readdir $TMPDIR or [] }
		2567	]
		2568	}
		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	]
1733	}	2586	}
1734		2587
1735	=item cf::map::unique_maps	2588	=item cf::map::unique_maps
1736		2589
1737	Returns an arrayref of paths of all shared maps that have	2590	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2591	instantiated unique items. May block.
1739		2592
1740	=cut	2593	=cut
1741		2594
1742	sub unique_maps() {	2595	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2596	[
1744	or return;	2597	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2598	utf8::decode $_;
1750	next if /\.pst$/;	2599	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2600	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2601	? ()
1753	push @paths, cf::map::normalise $_;	2602	: normalise $_
		2603	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2604	]
1755
1756	\@paths
1757	}	2605	}
1758		2606
1759	package cf;	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
		2636	\@maps
		2637	}
1760		2638
1761	=back	2639	=back
1762		2640
1763	=head3 cf::object	2641	=head3 cf::object
1764		2642
…		…
1768		2646
1769	=over 4	2647	=over 4
1770		2648
1771	=item $ob->inv_recursive	2649	=item $ob->inv_recursive
1772		2650
1773	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.
1774		2653
1775	=cut	2654	=cut
1776		2655
1777	sub inv_recursive_;	2656	sub inv_recursive_;
1778	sub inv_recursive_ {	2657	sub inv_recursive_ {
…		…
1781		2660
1782	sub inv_recursive {	2661	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2662	inv_recursive_ inv $_[0]
1784	}	2663	}
1785		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
1786	package cf;	2693	package cf;
1787		2694
1788	=back	2695	=back
1789		2696
1790	=head3 cf::object::player	2697	=head3 cf::object::player
…		…
1796	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>
1797	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
1798	dialogue with the given NPC character.	2705	dialogue with the given NPC character.
1799		2706
1800	=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	};
1801		2722
1802	# rough implementation of a future "reply" method that works	2723	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2724	# with dialog boxes.
1804	#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
1805	sub cf::object::player::reply($$$;$) {	2726	sub cf::object::player::reply($$$;$) {
…		…
1807		2728
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2730
1810	if ($self->{record_replies}) {	2731	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2733
1812	} 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 {
1813	$msg = $npc->name . " says: $msg" if $npc;	2742	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2743	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2744	}
1815	}	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 (@_);
1816	}	2756	}
1817		2757
1818	=item $player_object->may ("access")	2758	=item $player_object->may ("access")
1819		2759
1820	Returns wether the given player is authorized to access resource "access"	2760	Returns wether the given player is authorized to access resource "access"
1821	(e.g. "command_wizcast").	2761	(e.g. "command_wizcast").
1822		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
1823	=cut	2788	=cut
1824		2789
1825	sub cf::object::player::may {	2790	sub cf::object::player::may {
1826	my ($self, $access) = @_;	2791	my ($self, $access) = @_;
1827		2792
1828	$self->flag (cf::FLAG_WIZ) ||	2793	$self->flag (cf::FLAG_WIZ) ||
1829	(ref $cf::CFG{"may_$access"}	2794	(ref $cf::CFG{"may_$access"}
1830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2795	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1831	: $cf::CFG{"may_$access"})	2796	: $cf::CFG{"may_$access"})
1832	}	2797	}
1833		2798
1834	=item $player_object->enter_link	2799	=item $player_object->enter_link
1835		2800
1836	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}>).
1837		2802
1838	The player should be reasonably safe there for short amounts of time. You	2803	The player should be reasonably safe there for short amounts of time (e.g.
1839	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.
1840		2807
1841	Will never block.	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.
1842		2815
1843	=item $player_object->leave_link ($map, $x, $y)	2816	=item $player_object->leave_link ($map, $x, $y)
1844		2817
1845	Moves the player out of the special C<{link}> map onto the specified	2818	Moves the player out of the special C<{link}> map onto the specified
1846	map. If the map is not valid (or omitted), the player will be moved back	2819	map. If the map is not valid (or omitted), the player will be moved back
…		…
1862	}	2835	}
1863		2836
1864	sub cf::object::player::enter_link {	2837	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2838	my ($self) = @_;
1866		2839
		2840	$self->deactivate_recursive;
		2841
		2842	++$self->{_link_recursion};
		2843
1867	return if UNIVERSAL::isa $self->map, "ext::map_link";	2844	return if UNIVERSAL::isa $self->map, "ext::map_link";
1868		2845
1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2846	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1870	if $self->map;	2847	if $self->map && $self->map->{path} ne "{link}";
1871		2848
1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2849	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1873	}	2850	}
1874		2851
1875	sub cf::object::player::leave_link {	2852	sub cf::object::player::leave_link {
1876	my ($self, $map, $x, $y) = @_;	2853	my ($self, $map, $x, $y) = @_;
		2854
		2855	return unless $self->contr->active;
1877		2856
1878	my $link_pos = delete $self->{_link_pos};	2857	my $link_pos = delete $self->{_link_pos};
1879		2858
1880	unless ($map) {	2859	unless ($map) {
1881	# restore original map position	2860	# restore original map position
…		…
1892	($x, $y) = (-1, -1)	2871	($x, $y) = (-1, -1)
1893	unless (defined $x) && (defined $y);	2872	unless (defined $x) && (defined $y);
1894		2873
1895	# use -1 or undef as default coordinates, not 0, 0	2874	# use -1 or undef as default coordinates, not 0, 0
1896	($x, $y) = ($map->enter_x, $map->enter_y)	2875	($x, $y) = ($map->enter_x, $map->enter_y)
1897	if $x <=0 && $y <= 0;	2876	if $x <= 0 && $y <= 0;
1898		2877
1899	$map->load;	2878	$map->load;
1900	$map->load_diag;
1901		2879
1902	return unless $self->contr->active;	2880	return unless $self->contr->active;
1903	$self->activate_recursive;
1904		2881
1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2882	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1906	$self->enter_map ($map, $x, $y);	2883	if ($self->enter_map ($map, $x, $y)) {
1907	}	2884	# entering was successful
1908		2885	delete $self->{_link_recursion};
1909	cf::player->attach (	2886	# only activate afterwards, to support waiting in hooks
1910	on_logout => sub {	2887	$self->activate_recursive;
1911	my ($pl) = @_;
1912
1913	# abort map switching before logout
1914	if ($pl->ob->{_link_pos}) {
1915	cf::sync_job {
1916	$pl->ob->leave_link
1917	};
1918	}
1919	},	2888	}
1920	on_login => sub {
1921	my ($pl) = @_;
1922		2889
1923	# try to abort aborted map switching on player login :)	2890	}
1924	# should happen only on crashes
1925	if ($pl->ob->{_link_pos}) {
1926	$pl->ob->enter_link;
1927	(async {
1928	$pl->ob->reply (undef,
1929	"There was an internal problem at your last logout, "
1930	. "the server will try to bring you to your intended destination in a second.",
1931	cf::NDI_RED);
1932	# we need this sleep as the login has a concurrent enter_exit running
1933	# and this sleep increases chances of the player not ending up in scorn
1934	Coro::Timer::sleep 1;
1935	$pl->ob->leave_link;
1936	})->prio (2);
1937	}
1938	},
1939	);
1940		2891
1941	=item $player_object->goto ($path, $x, $y)	2892	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1942		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
1943	=cut	2903	=cut
		2904
		2905	our $GOTOGEN;
1944		2906
1945	sub cf::object::player::goto {	2907	sub cf::object::player::goto {
1946	my ($self, $path, $x, $y) = @_;	2908	my ($self, $path, $x, $y, $check, $done) = @_;
		2909
		2910	if ($self->{_link_recursion} >= $MAX_LINKS) {
		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;
1947		2918
1948	$self->enter_link;	2919	$self->enter_link;
1949		2920
1950	(async {	2921	(async {
		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
1951	my $map = eval {	2943	my $map = eval {
1952	my $map = cf::map::find $path;	2944	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2945
		2946	if ($map) {
1953	$map = $map->customise_for ($self) if $map;	2947	$map = $map->customise_for ($self);
		2948	$map = $check->($map, $x, $y, $self) if $check && $map;
		2949	} else {
		2950	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2951	}
		2952
1954	$map	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 $@;
1955	} or	2959	}
1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1957		2960
		2961	if ($gen == $self->{_goto_generation}) {
		2962	delete $self->{_goto_generation};
1958	$self->leave_link ($map, $x, $y);	2963	$self->leave_link ($map, $x, $y);
		2964	}
		2965
		2966	$done->($self) if $done;
1959	})->prio (1);	2967	})->prio (1);
1960	}	2968	}
1961		2969
1962	=item $player_object->enter_exit ($exit_object)	2970	=item $player_object->enter_exit ($exit_object)
1963		2971
…		…
1983	}	2991	}
1984		2992
1985	sub prepare_random_map {	2993	sub prepare_random_map {
1986	my ($exit) = @_;	2994	my ($exit) = @_;
1987		2995
1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1989
1990	# all this does is basically replace the /! path by	2996	# all this does is basically replace the /! path by
1991	# a new random map path (?random/...) with a seed	2997	# a new random map path (?random/...) with a seed
1992	# that depends on the exit object	2998	# that depends on the exit object
1993		2999
1994	my $rmp = parse_random_map_params $exit->msg;	3000	my $rmp = parse_random_map_params $exit->msg;
…		…
1996	if ($exit->map) {	3002	if ($exit->map) {
1997	$rmp->{region} = $exit->region->name;	3003	$rmp->{region} = $exit->region->name;
1998	$rmp->{origin_map} = $exit->map->path;	3004	$rmp->{origin_map} = $exit->map->path;
1999	$rmp->{origin_x} = $exit->x;	3005	$rmp->{origin_x} = $exit->x;
2000	$rmp->{origin_y} = $exit->y;	3006	$rmp->{origin_y} = $exit->y;
		3007
		3008	$exit->map->touch;
2001	}	3009	}
2002		3010
2003	$rmp->{random_seed} ||= $exit->random_seed;	3011	$rmp->{random_seed} ||= $exit->random_seed;
2004		3012
2005	my $data = cf::to_json $rmp;	3013	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2006	my $md5 = Digest::MD5::md5_hex $data;	3014	my $md5 = Digest::MD5::md5_hex $data;
2007	my $meta = "$RANDOMDIR/$md5.meta";	3015	my $meta = "$RANDOMDIR/$md5.meta";
2008		3016
2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	3017	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2010	aio_write $fh, 0, (length $data), $data, 0;	3018	aio_write $fh, 0, (length $data), $data, 0;
2011	undef $fh;	3019	undef $fh;
2012	aio_rename "$meta~", $meta;	3020	aio_rename "$meta~", $meta;
2013		3021
		3022	my $slaying = "?random/$md5";
		3023
		3024	if ($exit->valid) {
2014	$exit->slaying ("?random/$md5");	3025	$exit->slaying ("?random/$md5");
2015	$exit->msg (undef);	3026	$exit->msg (undef);
		3027	}
2016	}	3028	}
2017	}	3029	}
2018		3030
2019	sub cf::object::player::enter_exit {	3031	sub cf::object::player::enter_exit {
2020	my ($self, $exit) = @_;	3032	my ($self, $exit) = @_;
2021		3033
2022	return unless $self->type == cf::PLAYER;	3034	return unless $self->type == cf::PLAYER;
2023		3035
2024	if ($exit->slaying eq "/!") {
2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
2026	# the problem is that $exit might not survive long enough
2027	# so it needs to be done right now, right here
2028	cf::sync_job { prepare_random_map $exit };
2029	}
2030
2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2032	my $hp = $exit->stats->hp;
2033	my $sp = $exit->stats->sp;
2034
2035	$self->enter_link;	3036	$self->enter_link;
2036		3037
2037	(async {	3038	(async {
2038	$self->deactivate_recursive; # just to be sure	3039	$Coro::current->{desc} = "enter_exit";
		3040
2039	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
		3055	prepare_random_map $exit
		3056	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3057
		3058	$map = $exit->slaying;
		3059
		3060	} elsif ($slaying eq '!up') {
		3061	$map = $exit->map->tile_path (cf::TILE_UP);
		3062	$x = $exit->x;
		3063	$y = $exit->y;
		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
2040	$self->goto ($slaying, $hp, $sp);	3071	$self->goto ($map, $x, $y);
2041		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
2042	1;	3077	1
2043	}) {	3078	}) {
2044	$self->message ("Something went wrong deep within the crossfire server. "	3079	$self->message ("Something went wrong deep within the deliantra server. "
2045	. "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. "
2046	. "Please report this to the dungeon master!",	3081	. "Please report this to the dungeon master!",
2047	cf::NDI_UNIQUE | cf::NDI_RED);	3082	cf::NDI_UNIQUE | cf::NDI_RED);
2048		3083
2049	warn "ERROR in enter_exit: $@";	3084	error "ERROR in enter_exit: $@";
2050	$self->leave_link;	3085	$self->leave_link;
2051	}	3086	}
2052	})->prio (1);	3087	})->prio (1);
2053	}	3088	}
2054		3089
2055	=head3 cf::client	3090	=head3 cf::client
2056		3091
2057	=over 4	3092	=over 4
2058		3093
2059	=item $client->send_drawinfo ($text, $flags)	3094	=item $client->send_big_packet ($pkt)
2060		3095
2061	Sends a drawinfo packet to the client. Circumvents output buffering so	3096	Like C<send_packet>, but tries to compress large packets, and fragments
2062	should not be used under normal circumstances.	3097	them as required.
2063		3098
2064	=cut	3099	=cut
2065		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
2066	sub cf::client::send_drawinfo {	3248	sub cf::client::send_msg {
2067	my ($self, $text, $flags) = @_;	3249	my ($self, $channel, $msg, $color, @extra) = @_;
2068		3250
2069	utf8::encode $text;	3251	$msg = $self->pl->expand_cfpod ($msg)
2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3252	unless $color & cf::NDI_VERBATIM;
2071	}
2072		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
2073	=item $client->ext_event ($type, %msg)	3287	=item $client->ext_msg ($type, @msg)
2074		3288
2075	Sends an exti event to the client.	3289	Sends an ext event to the client.
2076		3290
2077	=cut	3291	=cut
2078		3292
2079	sub cf::client::ext_event($$%) {	3293	sub cf::client::ext_msg($$@) {
2080	my ($self, $type, %msg) = @_;	3294	my ($self, $type, @msg) = @_;
2081		3295
2082	$msg{msgtype} = "event_$type";	3296	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2083	$self->send_packet ("ext " . cf::to_json \%msg);
2084	}	3297	}
2085		3298
2086	=item $success = $client->query ($flags, "text", \&cb)	3299	=item $success = $client->query ($flags, "text", \&cb)
2087		3300
2088	Queues a query to the client, calling the given callback with	3301	Queues a query to the client, calling the given callback with
2089	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>,
2090	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>.
2091		3304
2092	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
2093	reliable at some point in the future.	3306	become reliable at some point in the future.
2094		3307
2095	=cut	3308	=cut
2096		3309
2097	sub cf::client::query {	3310	sub cf::client::query {
2098	my ($self, $flags, $text, $cb) = @_;	3311	my ($self, $flags, $text, $cb) = @_;
…		…
2106	utf8::encode $text;	3319	utf8::encode $text;
2107	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3320	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2108		3321
2109	$self->send_packet ($self->{query_queue}[0][0])	3322	$self->send_packet ($self->{query_queue}[0][0])
2110	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;
2111	}	3365	}
2112		3366
2113	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	},
2114	on_reply => sub {	3373	on_reply => sub {
2115	my ($ns, $msg) = @_;	3374	my ($ns, $msg) = @_;
2116		3375
2117	# this weird shuffling is so that direct followup queries	3376	# this weird shuffling is so that direct followup queries
2118	# get handled first	3377	# get handled first
…		…
2130	} else {	3389	} else {
2131	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3390	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2132	}	3391	}
2133	}	3392	}
2134	},	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	},
2135	);	3427	);
2136		3428
2137	=item $client->async (\&cb)	3429	=item $client->async (\&cb)
2138		3430
2139	Create a new coroutine, running the specified callback. The coroutine will	3431	Create a new coroutine, running the specified callback. The coroutine will
…		…
2155		3447
2156	$coro	3448	$coro
2157	}	3449	}
2158		3450
2159	cf::client->attach (	3451	cf::client->attach (
2160	on_destroy => sub {	3452	on_client_destroy => sub {
2161	my ($ns) = @_;	3453	my ($ns) = @_;
2162		3454
2163	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3455	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2164	},	3456	},
2165	);	3457	);
…		…
2180	our $safe = new Safe "safe";	3472	our $safe = new Safe "safe";
2181	our $safe_hole = new Safe::Hole;	3473	our $safe_hole = new Safe::Hole;
2182		3474
2183	$SIG{FPE} = 'IGNORE';	3475	$SIG{FPE} = 'IGNORE';
2184		3476
2185	$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	));
2186		3482
2187	# here we export the classes and methods available to script code	3483	# here we export the classes and methods available to script code
2188		3484
2189	=pod	3485	=pod
2190		3486
2191	The following functions and methods are available within a safe environment:	3487	The following functions and methods are available within a safe environment:
2192		3488
2193	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
2194	cf::object::player player	3494	cf::object::player
2195	cf::player peaceful	3495	player
2196	cf::map trigger	3496
		3497	cf::player
		3498	peaceful
		3499
		3500	cf::map
		3501	trigger
2197		3502
2198	=cut	3503	=cut
2199		3504
2200	for (	3505	for (
2201	["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)],
2202	["cf::object::player" => qw(player)],	3509	["cf::object::player" => qw(player)],
2203	["cf::player" => qw(peaceful)],	3510	["cf::player" => qw(peaceful send_msg)],
2204	["cf::map" => qw(trigger)],	3511	["cf::map" => qw(trigger)],
2205	) {	3512	) {
2206	no strict 'refs';
2207	my ($pkg, @funs) = @$_;	3513	my ($pkg, @funs) = @$_;
2208	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3514	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2209	for @funs;	3515	for @funs;
2210	}	3516	}
2211		3517
…		…
2226		3532
2227	my $qcode = $code;	3533	my $qcode = $code;
2228	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3534	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2229	$qcode =~ s/\n/\\n/g;	3535	$qcode =~ s/\n/\\n/g;
2230		3536
		3537	%vars = (_dummy => 0) unless %vars;
		3538
		3539	my @res;
2231	local $_;	3540	local $_;
2232	local @safe::cf::_safe_eval_args = values %vars;
2233		3541
2234	my $eval =	3542	my $eval =
2235	"do {\n"	3543	"do {\n"
2236	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3544	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2237	. "#line 0 \"{$qcode}\"\n"	3545	. "#line 0 \"{$qcode}\"\n"
2238	. $code	3546	. $code
2239	. "\n}"	3547	. "\n}"
2240	;	3548	;
2241		3549
		3550	if ($CFG{safe_eval}) {
2242	sub_generation_inc;	3551	sub_generation_inc;
		3552	local @safe::cf::_safe_eval_args = values %vars;
2243	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3553	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2244	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	}
2245		3559
2246	if ($@) {	3560	if ($@) {
2247	warn "$@";	3561	warn "$@",
2248	warn "while executing safe code '$code'\n";	3562	"while executing safe code '$code'\n",
2249	warn "with arguments " . (join " ", %vars) . "\n";	3563	"with arguments " . (join " ", %vars) . "\n";
2250	}	3564	}
2251		3565
2252	wantarray ? @res : $res[0]	3566	wantarray ? @res : $res[0]
2253	}	3567	}
2254		3568
…		…
2268	=cut	3582	=cut
2269		3583
2270	sub register_script_function {	3584	sub register_script_function {
2271	my ($fun, $cb) = @_;	3585	my ($fun, $cb) = @_;
2272		3586
2273	no strict 'refs';	3587	$fun = "safe::$fun" if $CFG{safe_eval};
2274	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3588	*$fun = $safe_hole->wrap ($cb);
2275	}	3589	}
2276		3590
2277	=back	3591	=back
2278		3592
2279	=cut	3593	=cut
2280
2281	#############################################################################
2282
2283	=head2 EXTENSION DATABASE SUPPORT
2284
2285	Crossfire maintains a very simple database for extension use. It can
2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2287	convert to/from binary).
2288
2289	The parameter C<$family> should best start with the name of the extension
2290	using it, it should be unique.
2291
2292	=over 4
2293
2294	=item $value = cf::db_get $family => $key
2295
2296	Returns a single value from the database.
2297
2298	=item cf::db_put $family => $key => $value
2299
2300	Stores the given C<$value> in the family.
2301
2302	=cut
2303
2304	our $DB;
2305
2306	sub db_init {
2307	unless ($DB) {
2308	$DB = BDB::db_create $DB_ENV;
2309
2310	cf::sync_job {
2311	eval {
2312	$DB->set_flags (BDB::CHKSUM);
2313
2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2316	cf::cleanup "db_open(db): $!" if $!;
2317	};
2318	cf::cleanup "db_open(db): $@" if $@;
2319	};
2320	}
2321	}
2322
2323	sub db_get($$) {
2324	my $key = "$_[0]/$_[1]";
2325
2326	cf::sync_job {
2327	BDB::db_get $DB, undef, $key, my $data;
2328
2329	$! ? ()
2330	: $data
2331	}
2332	}
2333
2334	sub db_put($$$) {
2335	BDB::dbreq_pri 4;
2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2337	}
2338
2339	=item cf::cache $id => [$paths...], $processversion => $process
2340
2341	Generic caching function that returns the value of the resource $id,
2342	caching and regenerating as required.
2343
2344	This function can block.
2345
2346	=cut
2347
2348	sub cache {
2349	my ($id, $src, $processversion, $process) = @_;
2350
2351	my $meta =
2352	join "\x00",
2353	$processversion,
2354	map {
2355	aio_stat $_
2356	and Carp::croak "$_: $!";
2357
2358	($_, (stat _)[7,9])
2359	} @$src;
2360
2361	my $dbmeta = db_get cache => "$id/meta";
2362	if ($dbmeta ne $meta) {
2363	# changed, we may need to process
2364
2365	my @data;
2366	my $md5;
2367
2368	for (0 .. $#$src) {
2369	0 <= aio_load $src->[$_], $data[$_]
2370	or Carp::croak "$src->[$_]: $!";
2371	}
2372
2373	# if processing is expensive, check
2374	# checksum first
2375	if (1) {
2376	$md5 =
2377	join "\x00",
2378	$processversion,
2379	map {
2380	Coro::cede;
2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
2382	} 0.. $#$src;
2383
2384
2385	my $dbmd5 = db_get cache => "$id/md5";
2386	if ($dbmd5 eq $md5) {
2387	db_put cache => "$id/meta", $meta;
2388
2389	return db_get cache => "$id/data";
2390	}
2391	}
2392
2393	my $t1 = Time::HiRes::time;
2394	my $data = $process->(\@data);
2395	my $t2 = Time::HiRes::time;
2396
2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2398
2399	db_put cache => "$id/data", $data;
2400	db_put cache => "$id/md5" , $md5;
2401	db_put cache => "$id/meta", $meta;
2402
2403	return $data;
2404	}
2405
2406	db_get cache => "$id/data"
2407	}
2408
2409	=item fork_call { }, $args
2410
2411	Executes the given code block with the given arguments in a seperate
2412	process, returning the results. Everything must be serialisable with
2413	Coro::Storable. May, of course, block. Note that the executed sub may
2414	never block itself or use any form of Event handling.
2415
2416	=cut
2417
2418	sub fork_call(&@) {
2419	my ($cb, @args) = @_;
2420
2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2422	# or die "socketpair: $!";
2423	pipe my $fh1, my $fh2
2424	or die "pipe: $!";
2425
2426	if (my $pid = fork) {
2427	close $fh2;
2428
2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2430	$res = Coro::Storable::thaw $res;
2431
2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2433
2434	die $$res unless "ARRAY" eq ref $res;
2435
2436	return wantarray ? @$res : $res->[-1];
2437	} else {
2438	local $SIG{__WARN__};
2439	eval {
2440	local $SIG{__DIE__};
2441	close $fh1;
2442
2443	my @res = eval { $cb->(@args) };
2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2445	};
2446
2447	warn $@ if $@;
2448	_exit 0;
2449	}
2450	}
2451
2452
2453		3594
2454	#############################################################################	3595	#############################################################################
2455	# the server's init and main functions	3596	# the server's init and main functions
2456		3597
		3598	{
		3599	package cf::face;
		3600
		3601	our %HASH; # hash => idx
		3602	our @DATA; # dynamically-created facedata, only faceste 0 used
		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 $DATAFH; # facedata filehandle
		3607
		3608	# internal api, not finalised
		3609	sub set {
		3610	my ($name, $type, $data) = @_;
		3611
		3612	my $idx = cf::face::find $name;
		3613
		3614	if ($idx) {
		3615	delete $HASH{cf::face::get_csum $idx};
		3616	} else {
		3617	$idx = cf::face::alloc $name;
		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
2457	sub load_facedata($) {	3675	sub load_facedata($) {
2458	my ($path) = @_;	3676	my ($path) = @_;
2459		3677
		3678	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3679
2460	warn "loading facedata from $path\n";	3680	trace "loading facedata from $path\n";
2461		3681
2462	my $facedata;	3682	my $facedata = decode_storable load_file "$path/faceinfo";
2463	0 < aio_load $path, $facedata
2464	or die "$path: $!";
2465
2466	$facedata = Coro::Storable::thaw $facedata;
2467		3683
2468	$facedata->{version} == 2	3684	$facedata->{version} == 2
2469	or cf::cleanup "$path: version mismatch, cannot proceed.";	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;
2470		3695
2471	{	3696	{
2472	my $faces = $facedata->{faceinfo};	3697	my $faces = $facedata->{faceinfo};
2473		3698
2474	while (my ($face, $info) = each %$faces) {	3699	for my $face (sort keys %$faces) {
		3700	my $info = $faces->{$face};
2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3701	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3702
2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3703	cf::face::set_visibility $idx, $info->{visibility};
2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3704	cf::face::set_magicmap $idx, $info->{magicmap};
2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3705	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
2479	Coro::cede;	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];
2480	}	3710	}
2481		3711
2482	while (my ($face, $info) = each %$faces) {	3712	while (my ($face, $info) = each %$faces) {
2483	next unless $info->{smooth};	3713	next unless $info->{smooth};
		3714
2484	my $idx = cf::face::find $face	3715	my $idx = cf::face::find $face
2485	or next;	3716	or next;
		3717
2486	if (my $smooth = cf::face::find $info->{smooth}) {	3718	if (my $smooth = cf::face::find $info->{smooth}) {
		3719	cf::face::set_smooth $idx, $smooth;
2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3720	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2488	} else {	3721	} else {
2489	warn "smooth face '$info->{smooth}' not found for face '$face'";	3722	error "smooth face '$info->{smooth}' not found for face '$face'";
2490	}	3723	}
2491	Coro::cede;
2492	}	3724	}
2493	}	3725	}
2494		3726
2495	{	3727	{
2496	my $anims = $facedata->{animinfo};	3728	my $anims = $facedata->{animinfo};
2497		3729
2498	while (my ($anim, $info) = each %$anims) {	3730	while (my ($anim, $info) = each %$anims) {
2499	cf::anim::set $anim, $info->{frames}, $info->{facings};	3731	cf::anim::set $anim, $info->{frames}, $info->{facings};
2500	Coro::cede;
2501	}	3732	}
2502		3733
2503	cf::anim::invalidate_all; # d'oh	3734	cf::anim::invalidate_all; # d'oh
2504	}	3735	}
2505		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
2506	1	3771	1
2507	}	3772	}
2508		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]
		3799	);
		3800	}
		3801
		3802	sub reload_materials {
		3803	_reload_materials;
		3804	}
		3805
2509	sub reload_regions {	3806	sub reload_regions {
		3807	# HACK to clear player env face cache, we need some signal framework
		3808	# for this (global event?)
		3809	%ext::player_env::MUSIC_FACE_CACHE = ();
		3810
2510	load_resource_file "$MAPDIR/regions"	3811	load_resource_file "$MAPDIR/regions"
2511	or die "unable to load regions file\n";	3812	or die "unable to load regions file\n";
		3813
		3814	for (cf::region::list) {
		3815	$_->{match} = qr/$_->{match}/
		3816	if exists $_->{match};
		3817	}
2512	}	3818	}
2513		3819
2514	sub reload_facedata {	3820	sub reload_facedata {
2515	load_facedata "$DATADIR/facedata"	3821	load_facedata $DATADIR
2516	or die "unable to load facedata\n";	3822	or die "unable to load facedata\n";
2517	}	3823	}
2518		3824
2519	sub reload_archetypes {	3825	sub reload_archetypes {
2520	load_resource_file "$DATADIR/archetypes"	3826	load_resource_file "$DATADIR/archetypes"
2521	or die "unable to load archetypes\n";	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;
2522	}	3854	}
2523		3855
2524	sub reload_treasures {	3856	sub reload_treasures {
2525	load_resource_file "$DATADIR/treasures"	3857	load_resource_file "$DATADIR/treasures"
2526	or die "unable to load treasurelists\n";	3858	or die "unable to load treasurelists\n";
2527	}	3859	}
2528		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
2529	sub reload_resources {	3881	sub reload_resources {
2530	warn "reloading resource files...\n";	3882	trace "reloading resource files...\n";
2531		3883
		3884	reload_materials;
		3885	reload_facedata;
		3886	reload_exp_table;
		3887	reload_sound;
		3888	reload_archetypes;
2532	reload_regions;	3889	reload_regions;
2533	reload_facedata;
2534	reload_archetypes;
2535	reload_treasures;	3890	reload_treasures;
2536		3891
2537	warn "finished reloading resource files\n";	3892	trace "finished reloading resource files\n";
2538	}	3893	}
2539		3894
2540	sub init {	3895	sub reload_config {
2541	reload_resources;	3896	trace "reloading config file...\n";
2542	}
2543		3897
2544	sub cfg_load {	3898	my $config = load_file "$CONFDIR/config";
2545	open my $fh, "<:utf8", "$CONFDIR/config"	3899	utf8::decode $config;
2546	or return;	3900	*CFG = decode_yaml $config;
2547		3901
2548	local $/;
2549	*CFG = YAML::Syck::Load <$fh>;
2550
2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3902	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2552		3903
2553	$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};
2554	$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};
2555		3906
2556	if (exists $CFG{mlockall}) {	3907	if (exists $CFG{mlockall}) {
…		…
2560	};	3911	};
2561	warn $@ if $@;	3912	warn $@ if $@;
2562	}	3913	}
2563	}	3914	}
2564		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
2565	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
2566	# we must not ever block the main coroutine	3955	# we must not ever block the main coroutine
2567	local $Coro::idle = sub {	3956	$Coro::idle = sub {
2568	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#
2569	(async {	3958	(async {
2570	Event::one_event;	3959	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3960	EV::run EV::RUN_ONCE;
2571	})->prio (Coro::PRIO_MAX);	3961	})->prio (Coro::PRIO_MAX);
2572	};	3962	};
2573		3963
2574	cfg_load;	3964	evthread_start IO::AIO::poll_fileno;
		3965
		3966	cf::sync_job {
		3967	cf::incloader::init ();
		3968
2575	db_init;	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
2576	load_extensions;	3988	load_extensions;
2577		3989
2578	$TICK_WATCHER->start;	3990	utime time, time, $RUNTIMEFILE;
2579	Event::loop;	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;
2580	}	4007	}
2581		4008
2582	#############################################################################	4009	#############################################################################
2583	# initialisation and cleanup	4010	# initialisation and cleanup
2584		4011
2585	# install some emergency cleanup handlers	4012	# install some emergency cleanup handlers
2586	BEGIN {	4013	BEGIN {
		4014	our %SIGWATCHER = ();
2587	for my $signal (qw(INT HUP TERM)) {	4015	for my $signal (qw(INT HUP TERM)) {
2588	Event->signal (	4016	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2589	reentrant => 0,
2590	data => WF_AUTOCANCEL,
2591	signal => $signal,
2592	prio => 0,
2593	cb => sub {
2594	cf::cleanup "SIG$signal";	4017	cf::cleanup "SIG$signal";
2595	},
2596	);	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
2597	}	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 };
2598	}	4108	}
2599		4109
2600	sub emergency_save() {	4110	sub emergency_save() {
2601	my $freeze_guard = cf::freeze_mainloop;	4111	my $freeze_guard = cf::freeze_mainloop;
2602		4112
2603	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;
2604		4119
2605	cf::sync_job {	4120	cf::sync_job {
		4121	cf::write_runtime_sync; # external watchdog should not bark
		4122
2606	# use a peculiar iteration method to avoid tripping on perl	4123	# use a peculiar iteration method to avoid tripping on perl
2607	# refcount bugs in for. also avoids problems with players	4124	# refcount bugs in for. also avoids problems with players
2608	# and maps saved/destroyed asynchronously.	4125	# and maps saved/destroyed asynchronously.
2609	warn "begin emergency player save\n";	4126	info "emergency_perl_save: begin player save\n";
2610	for my $login (keys %cf::PLAYER) {	4127	for my $login (keys %cf::PLAYER) {
2611	my $pl = $cf::PLAYER{$login} or next;	4128	my $pl = $cf::PLAYER{$login} or next;
2612	$pl->valid or next;	4129	$pl->valid or next;
		4130	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2613	$pl->save;	4131	$pl->save;
2614	}	4132	}
2615	warn "end emergency player save\n";	4133	info "emergency_perl_save: end player save\n";
2616		4134
2617	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";
2618	for my $path (keys %cf::MAP) {	4138	for my $path (keys %cf::MAP) {
2619	my $map = $cf::MAP{$path} or next;	4139	my $map = $cf::MAP{$path} or next;
2620	$map->valid or next;	4140	$map->valid or next;
2621	$map->save;	4141	$map->save;
2622	}	4142	}
2623	warn "end emergency map save\n";	4143	info "emergency_perl_save: end map save\n";
2624		4144
2625	warn "begin emergency database checkpoint\n";	4145	cf::write_runtime_sync; # external watchdog should not bark
		4146
		4147	info "emergency_perl_save: begin database checkpoint\n";
2626	BDB::db_env_txn_checkpoint $DB_ENV;	4148	BDB::db_env_txn_checkpoint $DB_ENV;
2627	warn "end emergency database checkpoint\n";	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
2628	};	4173	};
2629		4174
2630	warn "leave emergency perl save\n";	4175	info "emergency_perl_save: leave\n";
2631	}	4176	}
2632		4177
2633	sub post_cleanup {	4178	sub post_cleanup {
2634	my ($make_core) = @_;	4179	my ($make_core) = @_;
2635		4180
		4181	IO::AIO::flush;
		4182
2636	warn Carp::longmess "post_cleanup backtrace"	4183	error Carp::longmess "post_cleanup backtrace"
2637	if $make_core;	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	}
2638	}	4213	}
2639		4214
2640	sub do_reload_perl() {	4215	sub do_reload_perl() {
2641	# can/must only be called in main	4216	# can/must only be called in main
2642	if ($Coro::current != $Coro::main) {	4217	unless (in_main) {
2643	warn "can only reload from main coroutine";	4218	error "can only reload from main coroutine";
2644	return;	4219	return;
2645	}	4220	}
2646		4221
2647	warn "reloading...";	4222	return if $RELOAD++;
2648		4223
2649	warn "entering sync_job";	4224	my $t1 = AE::time;
2650		4225
		4226	while ($RELOAD) {
		4227	cf::get_slot 0.1, -1, "reload_perl";
		4228	info "perl_reload: reloading...";
		4229
		4230	trace "perl_reload: entering sync_job";
		4231
2651	cf::sync_job {	4232	cf::sync_job {
2652	cf::write_runtime; # external watchdog should not bark
2653	cf::emergency_save;	4233	#cf::emergency_save;
2654	cf::write_runtime; # external watchdog should not bark
2655		4234
2656	warn "syncing database to disk";
2657	BDB::db_env_txn_checkpoint $DB_ENV;
2658
2659	# if anything goes wrong in here, we should simply crash as we already saved
2660
2661	warn "cancelling all WF_AUTOCANCEL watchers";
2662	for (Event::all_watchers) {
2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2664	}
2665
2666	warn "flushing outstanding aio requests";
2667	for (;;) {
2668	BDB::flush;
2669	IO::AIO::flush;
2670	Coro::cede;
2671	last unless IO::AIO::nreqs || BDB::nreqs;
2672	warn "iterate...";
2673	}
2674
2675	++$RELOAD;
2676
2677	warn "cancelling all extension coros";	4235	trace "perl_reload: cancelling all extension coros";
2678	$_->cancel for values %EXT_CORO;	4236	$_->cancel for values %EXT_CORO;
2679	%EXT_CORO = ();	4237	%EXT_CORO = ();
2680		4238
2681	warn "removing commands";	4239	trace "perl_reload: removing commands";
2682	%COMMAND = ();	4240	%COMMAND = ();
2683		4241
2684	warn "removing ext commands";	4242	trace "perl_reload: removing ext/exti commands";
2685	%EXTCMD = ();	4243	%EXTCMD = ();
		4244	%EXTICMD = ();
2686		4245
2687	warn "unloading/nuking all extensions";	4246	trace "perl_reload: unloading/nuking all extensions";
2688	for my $pkg (@EXTS) {	4247	for my $pkg (@EXTS) {
2689	warn "... unloading $pkg";	4248	trace "... unloading $pkg";
2690		4249
2691	if (my $cb = $pkg->can ("unload")) {	4250	if (my $cb = $pkg->can ("unload")) {
2692	eval {	4251	eval {
2693	$cb->($pkg);	4252	$cb->($pkg);
2694	1	4253	1
2695	} or warn "$pkg unloaded, but with errors: $@";	4254	} or error "$pkg unloaded, but with errors: $@";
		4255	}
		4256
		4257	trace "... clearing $pkg";
		4258	clear_package $pkg;
2696	}	4259	}
2697		4260
2698	warn "... nuking $pkg";
2699	Symbol::delete_package $pkg;
2700	}
2701
2702	warn "unloading all perl modules loaded from $LIBDIR";	4261	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2703	while (my ($k, $v) = each %INC) {	4262	while (my ($k, $v) = each %INC) {
2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2705		4264
2706	warn "... unloading $k";	4265	trace "... unloading $k";
2707	delete $INC{$k};	4266	delete $INC{$k};
2708		4267
2709	$k =~ s/\.pm$//;	4268	$k =~ s/\.pm$//;
2710	$k =~ s/\//::/g;	4269	$k =~ s/\//::/g;
2711		4270
2712	if (my $cb = $k->can ("unload_module")) {	4271	if (my $cb = $k->can ("unload_module")) {
2713	$cb->();	4272	$cb->();
		4273	}
		4274
		4275	clear_package $k;
2714	}	4276	}
2715		4277
2716	Symbol::delete_package $k;
2717	}
2718
2719	warn "getting rid of safe::, as good as possible";	4278	trace "perl_reload: getting rid of safe::, as good as possible";
2720	Symbol::delete_package "safe::$_"	4279	clear_package "safe::$_"
2721	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);
2722		4281
2723	warn "unloading cf.pm \"a bit\"";	4282	trace "perl_reload: unloading cf.pm \"a bit\"";
2724	delete $INC{"cf.pm"};	4283	delete $INC{"cf.pm"};
2725	delete $INC{"cf/pod.pm"};	4284	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2726		4285
2727	# don't, removes xs symbols, too,	4286	# don't, removes xs symbols, too,
2728	# and global variables created in xs	4287	# and global variables created in xs
2729	#Symbol::delete_package __PACKAGE__;	4288	#clear_package __PACKAGE__;
2730		4289
2731	warn "unload completed, starting to reload now";	4290	info "perl_reload: unload completed, starting to reload now";
2732		4291
2733	warn "reloading cf.pm";	4292	trace "perl_reload: reloading cf.pm";
2734	require cf;	4293	require cf;
2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4294	cf::_connect_to_perl_1;
2736		4295
2737	warn "loading config and database again";	4296	trace "perl_reload: loading config and database again";
2738	cf::cfg_load;	4297	cf::reload_config;
2739		4298
2740	warn "loading extensions";	4299	trace "perl_reload: loading extensions";
2741	cf::load_extensions;	4300	cf::load_extensions;
2742		4301
		4302	if ($REATTACH_ON_RELOAD) {
2743	warn "reattaching attachments to objects/players";	4303	trace "perl_reload: reattaching attachments to objects/players";
2744	_global_reattach; # objects, sockets	4304	_global_reattach; # objects, sockets
2745	warn "reattaching attachments to maps";	4305	trace "perl_reload: reattaching attachments to maps";
2746	reattach $_ for values %MAP;	4306	reattach $_ for values %MAP;
2747	warn "reattaching attachments to players";	4307	trace "perl_reload: reattaching attachments to players";
2748	reattach $_ for values %PLAYER;	4308	reattach $_ for values %PLAYER;
		4309	}
2749		4310
2750	warn "leaving sync_job";	4311	cf::_post_init 1;
2751		4312
		4313	trace "perl_reload: leaving sync_job";
		4314
2752	1	4315	1
2753	} or do {	4316	} or do {
2754	warn $@;	4317	error $@;
2755	warn "error while reloading, exiting.";	4318	cf::cleanup "perl_reload: error, exiting.";
2756	exit 1;	4319	};
		4320
		4321	--$RELOAD;
2757	};	4322	}
2758		4323
2759	warn "reloaded";	4324	$t1 = AE::time - $t1;
		4325	info "perl_reload: completed in ${t1}s\n";
2760	};	4326	};
2761		4327
2762	our $RELOAD_WATCHER; # used only during reload	4328	our $RELOAD_WATCHER; # used only during reload
2763		4329
2764	sub reload_perl() {	4330	sub reload_perl() {
2765	# doing reload synchronously and two reloads happen back-to-back,	4331	# doing reload synchronously and two reloads happen back-to-back,
2766	# coro crashes during coro_state_free->destroy here.	4332	# coro crashes during coro_state_free->destroy here.
2767		4333
2768	$RELOAD_WATCHER ||= Event->timer (	4334	$RELOAD_WATCHER ||= cf::async {
2769	reentrant => 0,	4335	Coro::AIO::aio_wait cache_extensions;
2770	after => 0,	4336
2771	data => WF_AUTOCANCEL,	4337	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2772	cb => sub {
2773	do_reload_perl;	4338	do_reload_perl;
2774	undef $RELOAD_WATCHER;	4339	undef $RELOAD_WATCHER;
2775	},	4340	};
2776	);	4341	};
2777	}	4342	}
2778		4343
2779	register_command "reload" => sub {	4344	register_command "reload" => sub {
2780	my ($who, $arg) = @_;	4345	my ($who, $arg) = @_;
2781		4346
2782	if ($who->flag (FLAG_WIZ)) {	4347	if ($who->flag (FLAG_WIZ)) {
2783	$who->message ("reloading server.");	4348	$who->message ("reloading server.");
		4349	async {
		4350	$Coro::current->{desc} = "perl_reload";
2784	async { reload_perl };	4351	reload_perl;
		4352	};
2785	}	4353	}
2786	};	4354	};
2787		4355
2788	unshift @INC, $LIBDIR;	4356	#############################################################################
2789		4357
2790	my $bug_warning = 0;	4358	my $bug_warning = 0;
2791		4359
2792	our @WAIT_FOR_TICK;
2793	our @WAIT_FOR_TICK_BEGIN;
2794
2795	sub wait_for_tick {	4360	sub wait_for_tick() {
2796	return unless $TICK_WATCHER->is_active;	4361	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2797	return if $Coro::current == $Coro::main;
2798		4362
2799	my $signal = new Coro::Signal;	4363	$WAIT_FOR_TICK->wait;
2800	push @WAIT_FOR_TICK, $signal;
2801	$signal->wait;
2802	}	4364	}
2803		4365
2804	sub wait_for_tick_begin {	4366	sub wait_for_tick_begin() {
2805	return unless $TICK_WATCHER->is_active;	4367	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2806	return if $Coro::current == $Coro::main;
2807		4368
2808	my $signal = new Coro::Signal;	4369	my $signal = new Coro::Signal;
2809	push @WAIT_FOR_TICK_BEGIN, $signal;	4370	push @WAIT_FOR_TICK_BEGIN, $signal;
2810	$signal->wait;	4371	$signal->wait;
2811	}	4372	}
2812		4373
2813	$TICK_WATCHER = Event->timer (	4374	sub tick {
2814	reentrant => 0,
2815	parked => 1,
2816	prio => 0,
2817	at => $NEXT_TICK || $TICK,
2818	data => WF_AUTOCANCEL,
2819	cb => sub {
2820	if ($Coro::current != $Coro::main) {	4375	if ($Coro::current != $Coro::main) {
2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4376	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2822	unless ++$bug_warning > 10;	4377	unless ++$bug_warning > 10;
2823	return;	4378	return;
2824	}	4379	}
2825		4380
2826	$NOW = Event::time;	4381	cf::one_tick; # one server iteration
2827		4382
2828	cf::server_tick; # one server iteration	4383	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2829		4384
2830	$RUNTIME += $TICK;
2831	$NEXT_TICK += $TICK;
2832
2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4385	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2834	$NEXT_RUNTIME_WRITE = $NOW + 10;	4386	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2835	Coro::async_pool {	4387	Coro::async_pool {
		4388	$Coro::current->{desc} = "runtime saver";
2836	write_runtime	4389	write_runtime_sync
2837	or warn "ERROR: unable to write runtime file: $!";	4390	or error "ERROR: unable to write runtime file: $!";
2838	};
2839	}	4391	};
		4392	}
2840		4393
2841	# my $AFTER = Event::time;
2842	# warn $AFTER - $NOW;#d#
2843
2844	# if we are delayed by four ticks or more, skip them all
2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2846
2847	$TICK_WATCHER->at ($NEXT_TICK);
2848	$TICK_WATCHER->start;
2849
2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4394	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2851	$sig->send;	4395	$sig->send;
2852	}
2853	while (my $sig = shift @WAIT_FOR_TICK) {
2854	$sig->send;
2855	}
2856
2857	_post_tick;
2858	},	4396	}
2859	);	4397	$WAIT_FOR_TICK->broadcast;
		4398
		4399	$LOAD = ($NOW - $TICK_START) / $TICK;
		4400	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4401
		4402	if (0) {
		4403	if ($NEXT_TICK) {
		4404	my $jitter = $TICK_START - $NEXT_TICK;
		4405	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4406	debug "jitter $JITTER\n";#d#
		4407	}
		4408	}
		4409	}
2860		4410
2861	{	4411	{
2862	BDB::max_poll_time $TICK * 0.1;	4412	# configure BDB
2863	$BDB_POLL_WATCHER = Event->io (	4413	info "initialising database";
2864	reentrant => 0,	4414
2865	fd => BDB::poll_fileno,
2866	poll => 'r',
2867	prio => 0,
2868	data => WF_AUTOCANCEL,
2869	cb => \&BDB::poll_cb,
2870	);
2871	BDB::min_parallel 8;	4415	BDB::min_parallel 16;
2872		4416	BDB::max_poll_reqs $TICK * 0.1;
2873	BDB::set_sync_prepare {	4417	#$AnyEvent::BDB::WATCHER->priority (1);
2874	my $status;
2875	my $current = $Coro::current;
2876	(
2877	sub {
2878	$status = $!;
2879	$current->ready; undef $current;
2880	},
2881	sub {
2882	Coro::schedule while defined $current;
2883	$! = $status;
2884	},
2885	)
2886	};
2887		4418
2888	unless ($DB_ENV) {	4419	unless ($DB_ENV) {
2889	$DB_ENV = BDB::db_env_create;	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);
2890		4426
2891	cf::sync_job {	4427	cf::sync_job {
2892	eval {	4428	eval {
2893	BDB::db_env_open	4429	BDB::db_env_open
2894	$DB_ENV,	4430	$DB_ENV,
…		…
2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4432	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2898	0666;	4434	0666;
2899		4435
2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2901
2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2903	$DB_ENV->set_lk_detect;
2904	};	4437	};
2905		4438
2906	cf::cleanup "db_env_open(db): $@" if $@;	4439	cf::cleanup "db_env_open(db): $@" if $@;
2907	};	4440	};
2908	}	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";
2909	}	4454	}
2910		4455
2911	{	4456	{
		4457	# configure IO::AIO
		4458
		4459	info "initialising aio";
2912	IO::AIO::min_parallel 8;	4460	IO::AIO::min_parallel 8;
2913
2914	undef $Coro::AIO::WATCHER;
2915	IO::AIO::max_poll_time $TICK * 0.1;	4461	IO::AIO::max_poll_time $TICK * 0.1;
2916	$AIO_POLL_WATCHER = Event->io (	4462	undef $AnyEvent::AIO::WATCHER;
2917	reentrant => 0,	4463	info "aio initialised";
2918	data => WF_AUTOCANCEL,	4464	}
2919	fd => IO::AIO::poll_fileno,	4465
2920	poll => 'r',	4466	our $_log_backtrace;
2921	prio => 6,	4467	our $_log_backtrace_last;
2922	cb => \&IO::AIO::poll_cb,	4468
2923	);	4469	sub _log_backtrace {
		4470	my ($msg, @addr) = @_;
		4471
		4472	$msg =~ s/\n$//;
		4473
		4474	if ($_log_backtrace_last eq $msg) {
		4475	LOG llevInfo, "[ABT] $msg\n";
		4476	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4477	# limit the # of concurrent backtraces
		4478	} elsif ($_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;
		4506	};
		4507	} else {
		4508	LOG llevInfo, "[ABT] $msg\n";
		4509	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4510	}
2924	}	4511	}
2925		4512
2926	# load additional modules	4513	# load additional modules
2927	use cf::pod;	4514	require "cf/$_.pm" for @EXTRA_MODULES;
		4515	cf::_connect_to_perl_2;
2928		4516
2929	END { cf::emergency_save }	4517	END { cf::emergency_save }
2930		4518
2931	1	4519	1
2932		4520

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