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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.219 by root, Sat Feb 17 03:19:44 2007 UTC vs.
Revision 1.624 by root, Sat Nov 17 23:40:02 2018 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2018 Marc Alexander Lehmann / the Deliantra team
		5	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		6	#
		7	# Deliantra is free software: you can redistribute it and/or modify it under
		8	# the terms of the Affero GNU General Public License as published by the
		9	# Free Software Foundation, either version 3 of the License, or (at your
		10	# option) any later version.
		11	#
		12	# This program is distributed in the hope that it will be useful,
		13	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		15	# GNU General Public License for more details.
		16	#
		17	# You should have received a copy of the Affero GNU General Public License
		18	# and the GNU General Public License along with this program. If not, see
		19	# <http://www.gnu.org/licenses/>.
		20	#
		21	# The authors can be reached via e-mail to <support@deliantra.net>
		22	#
		23
1	package cf;	24	package cf;
2		25
3	use utf8;	26	use common::sense;
4	use strict;
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
		36	use Carp ();
12		37
		38	use AnyEvent ();
		39	use AnyEvent::IO ();
		40	use AnyEvent::DNS ();
		41
13	use Coro 3.5 ();	42	use Coro ();
		43	use Coro::State;
		44	use Coro::Handle;
		45	use Coro::EV;
14	use Coro::Event;	46	use Coro::AnyEvent;
15	use Coro::Timer;	47	use Coro::Timer;
16	use Coro::Signal;	48	use Coro::Signal;
17	use Coro::Semaphore;	49	use Coro::Semaphore;
		50	use Coro::SemaphoreSet;
		51	use Coro::AnyEvent;
18	use Coro::AIO;	52	use Coro::AIO;
		53	use Coro::BDB 1.6;
		54	use Coro::Storable;
		55	use Coro::Util ();
19		56
		57	use Guard ();
		58	use JSON::XS 2.01 ();
20	use BDB ();	59	use BDB ();
21	use Data::Dumper;	60	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	61	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	62	use YAML::XS ();
26	use Time::HiRes;	63	use CBOR::XS ();
		64	use IO::AIO ();
27	use Compress::LZF;	65	use Compress::LZF;
		66	use Digest::MD5 ();
28		67
		68	AnyEvent::detect;
		69
		70	# configure various modules to our taste
		71	#
		72	$Storable::canonical = 1; # reduce rsync transfers
		73	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		74
		75	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		76
		77	# make sure c-lzf reinitialises itself
		78	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	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
30		80
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	81	# strictly for debugging
		82	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		83
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	84	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		85
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	86	our @ORIG_INC;
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		87
40	our %COMMAND = ();	88	our %COMMAND = ();
41	our %COMMAND_TIME = ();	89	our %COMMAND_TIME = ();
42		90
43	our @EXTS = (); # list of extension package names	91	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	92	our %EXTCMD = ();
		93	our %EXTACMD = ();
		94	our %EXTICMD = ();
		95	our %EXTIACMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	96	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	97	our %EXT_MAP = (); # pluggable maps
47		98
		99	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	100	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	101	our @REFLECT; # set by XS
		102	our %REFLECT; # set by us
50		103
51	our $TICK = MAX_TIME * 1e-6;	104	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	105
53	our $AIO_POLL_WATCHER;	106	our $DATADIR = datadir;
		107	our $LIBDIR = "$DATADIR/ext";
		108	our $PODDIR = "$DATADIR/pod";
		109	our $MAPDIR = "$DATADIR/" . mapdir;
		110
		111	our $LOCALDIR = localdir;
		112	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		113	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		114	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		115	our $RANDOMDIR = "$LOCALDIR/random";
		116	our $BDBDIR = "$LOCALDIR/db";
		117	our $PIDFILE = "$LOCALDIR/pid";
		118	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		119
		120	#our %RESOURCE; # unused
		121
		122	our $OUTPUT_RATE_MIN = 3000;
		123	our $OUTPUT_RATE_MAX = 1000000;
		124
		125	our $MAX_LINKS = 32; # how many chained exits to follow
		126	our $VERBOSE_IO = 1;
		127
		128	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	129	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	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;
56	our $NOW;	146	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		147
59	our $BDB_POLL_WATCHER;	148	our (%PLAYER, %PLAYER_LOADING); # all users
60	our $DB_ENV;	149	our (%MAP, %MAP_LOADING ); # all maps
61
62	our %CFG;
63
64	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;
66
67	our %PLAYER; # all users
68	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	150	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		151
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	153	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $WAIT_FOR_TICK = new Coro::Signal;
		166	our @WAIT_FOR_TICK_BEGIN;
		167
79	binmode STDOUT;	168	binmode STDOUT;
80	binmode STDERR;	169	binmode STDERR;
81		170
82	# read virtual server time, if available	171	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	172	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	173	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	174	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	175	$RUNTIME = <$fh> + 0.;
87	}	176	}
88		177
89	mkdir cf::localdir;	178	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	179
91	mkdir cf::localdir . "/" . cf::tmpdir;	180	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	181	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		182
96	our $EMERGENCY_POSITION;	183	our $EMERGENCY_POSITION;
97		184
98	sub cf::map::normalise;	185	sub cf::map::normalise;
99		186
		187	sub in_main() {
		188	$Coro::current == $Coro::main
		189	}
		190
100	#############################################################################	191	#############################################################################
101		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
102	=head2 GLOBAL VARIABLES	204	=head2 GLOBAL VARIABLES
103		205
104	=over 4	206	=over 4
105		207
106	=item $cf::UPTIME	208	=item $cf::UPTIME
107		209
108	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.
109		226
110	=item $cf::RUNTIME	227	=item $cf::RUNTIME
111		228
112	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
113	every server tick.	230	every server tick.
114		231
115	=item $cf::LIBDIR	232	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		233	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		234	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		235
117	The perl library directory, where extensions and cf-specific modules can	236	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	237	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		238	unique-items directory, player file directory, random maps directory and
		239	database environment.
119		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
120	=item $cf::NOW	247	=item $cf::LOAD
121		248
122	The time of the last (current) server tick.	249	The raw value load value from the last tick.
123
124	=item $cf::TICK
125
126	The interval between server ticks, in seconds.
127		250
128	=item %cf::CFG	251	=item %cf::CFG
129		252
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	253	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	254	from wherever your confdir points to.
132		255
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	256	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		257
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	258	These are functions that inhibit the current coroutine one tick.
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	259	cf::wait_for_tick_begin only returns directly I<after> the tick
137	processing has been done. Call C<< ->wait >> on them to maximise the	260	processing (and consequently, can only wake one thread per tick), while
138	window of cpu time available, or simply to synchronise to the server tick.	261	cf::wait_for_tick wakes up all waiters after tick processing.
		262
		263	Note that cf::wait_for_tick will immediately return when the server is not
		264	ticking, making it suitable for small pauses in threads that need to run
		265	when the server is paused. If that is not applicable (i.e. you I<really>
		266	want to wait, use C<$cf::WAIT_FOR_TICK>).
		267
		268	=item $cf::WAIT_FOR_TICK
		269
		270	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		271	variable contains a L<Coro::Signal> that is broadcats after every server
		272	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		273	next server tick.
		274
		275	=cut
		276
		277	sub wait_for_tick();
		278	sub wait_for_tick_begin();
		279
		280	=item @cf::INVOKE_RESULTS
		281
		282	This array contains the results of the last C<invoke ()> call. When
		283	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		284	that call.
		285
		286	=item %cf::REFLECT
		287
		288	Contains, for each (C++) class name, a hash reference with information
		289	about object members (methods, scalars, arrays and flags) and other
		290	metadata, which is useful for introspection.
139		291
140	=back	292	=back
141		293
142	=cut	294	=cut
143		295
144	BEGIN {	296	sub error(@) { LOG llevError, join "", @_ }
145	*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 {
146	my $msg = join "", @_;	303	my $msg = join "", @_;
147	utf8::encode $msg;
148		304
149	$msg .= "\n"	305	$msg .= "\n"
150	unless $msg =~ /\n$/;	306	unless $msg =~ /\n$/;
151		307
		308	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		309
152	LOG llevError, $msg;	310	LOG llevWarn, $msg;
153	};	311	};
154	}	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	};
155		326
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	327	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	328	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	329	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	330	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		334
163	# 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
164	# within the Safe compartment.	336	# within the Safe compartment.
165	for my $pkg (qw(	337	for my $pkg (qw(
166	cf::global cf::attachable	338	cf::global cf::attachable
167	cf::object cf::object::player	339	cf::object cf::object::player
168	cf::client cf::player	340	cf::client cf::player
169	cf::arch cf::living	341	cf::arch cf::living
		342	cf::map cf::mapspace
170	cf::map cf::party cf::region	343	cf::party cf::region
171	)) {	344	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	345	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	346	}
175		347
176	$Event::DIED = sub {	348	$EV::DIED = sub {
177	warn "error in event callback: @_";	349	warn "error in event callback: $@";
178	};	350	};
		351
		352	#############################################################################
		353
		354	sub fork_call(&@);
		355	sub get_slot($;$$);
		356
		357	#############################################################################
179		358
180	=head2 UTILITY FUNCTIONS	359	=head2 UTILITY FUNCTIONS
181		360
182	=over 4	361	=over 4
183		362
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	381	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	382	$d
204	} || "[unable to dump $_[0]: '$@']";	383	} || "[unable to dump $_[0]: '$@']";
205	}	384	}
206		385
207	use JSON::Syck (); # TODO# replace by JSON::PC once working	386	=item $scalar = cf::load_file $path
208		387
		388	Loads the given file from path and returns its contents. Croaks on error
		389	and can block.
		390
		391	=cut
		392
		393	sub load_file($) {
		394	0 <= aio_load $_[0], my $data
		395	or Carp::croak "$_[0]: $!";
		396
		397	$data
		398	}
		399
		400	=item $success = cf::replace_file $path, $data, $sync
		401
		402	Atomically replaces the file at the given $path with new $data, and
		403	optionally $sync the data to disk before replacing the file.
		404
		405	=cut
		406
		407	sub replace_file($$;$) {
		408	my ($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
209	=item $ref = cf::from_json $json	438	=item $ref = cf::decode_json $json
210		439
211	Converts a JSON string into the corresponding perl data structure.	440	Converts a JSON string into the corresponding perl data structure.
212		441
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	442	=item $json = cf::encode_json $ref
221		443
222	Converts a perl data structure into its JSON representation.	444	Converts a perl data structure into its JSON representation.
223		445
224	=cut	446	=cut
225		447
226	sub to_json($) {	448	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	449
228	JSON::Syck::Dump $_[0]	450	sub encode_json($) { $json_coder->encode ($_[0]) }
		451	sub decode_json($) { $json_coder->decode ($_[0]) }
		452
		453	=item $ref = cf::decode_storable $scalar
		454
		455	Same as Coro::Storable::thaw, so blocks.
		456
		457	=cut
		458
		459	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		460
		461	=item $ref = cf::decode_yaml $scalar
		462
		463	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		464
		465	=cut
		466
		467	sub decode_yaml($) {
		468	fork_call { YAML::XS::Load $_[0] } @_
		469	}
		470
		471	=item $scalar = cf::decode_cbor $scalar
		472
		473	Same as CBOR::XS::decode_cbor, but takes server ticks into account, so
		474	blocks. For small amounts of data, C<CBOR::XS::decode_cbor> is the better
		475	alternative.
		476
		477	=cut
		478
		479	sub decode_cbor($) {
		480	# we assume 10mb/s minimum decoding speed (on a ~2ghz machine)
		481	cf::get_slot +(length $_[0]) / 10_000_000, 0, "decode_cbor";
		482	CBOR::XS::decode_cbor $_[0]
		483	}
		484
		485	=item $scalar = cf::unlzf $scalar
		486
		487	Same as Compress::LZF::compress, but takes server ticks into account, so
		488	blocks.
		489
		490	=cut
		491
		492	sub unlzf($) {
		493	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		494	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		495	Compress::LZF::decompress $_[0]
		496	}
		497
		498	=item cf::post_init { BLOCK }
		499
		500	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		501	but I<before> the server starts ticking again.
		502
		503	The codeblock will have a single boolean argument to indicate whether this
		504	is a reload or not.
		505
		506	=cut
		507
		508	sub post_init(&) {
		509	push @POST_INIT, shift;
		510	}
		511
		512	sub _post_init {
		513	trace "running post_init jobs";
		514
		515	# run them in parallel...
		516
		517	my @join;
		518
		519	while () {
		520	push @join, map &Coro::async ($_, 0), @POST_INIT;
		521	@POST_INIT = ();
		522
		523	@join or last;
		524
		525	(pop @join)->join;
		526	}
229	}	527	}
230		528
231	=item cf::lock_wait $string	529	=item cf::lock_wait $string
232		530
233	Wait until the given lock is available. See cf::lock_acquire.	531	Wait until the given lock is available. See cf::lock_acquire.
234		532
235	=item my $lock = cf::lock_acquire $string	533	=item my $lock = cf::lock_acquire $string
236		534
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	537	for example when the coroutine gets canceled), the lock is automatically
240	returned.	538	returned.
241		539
		540	Locks are *not* recursive, locking from the same coro twice results in a
		541	deadlocked coro.
		542
242	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
243	uses map_find and cf::map::load uses map_load).	544	uses map_find and cf::map::load uses map_load).
244		545
245	=cut	546	=item $locked = cf::lock_active $string
246		547
247	our %LOCK;	548	Return true if the lock is currently active, i.e. somebody has locked it.
		549
		550	=cut
		551
		552	our $LOCKS = new Coro::SemaphoreSet;
248		553
249	sub lock_wait($) {	554	sub lock_wait($) {
250	my ($key) = @_;	555	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	556	}
258		557
259	sub lock_acquire($) {	558	sub lock_acquire($) {
260	my ($key) = @_;	559	$LOCKS->guard ($_[0])
		560	}
261		561
262	# wait, to be sure we are not locked	562	sub lock_active($) {
263	lock_wait $key;	563	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	564	}
272		565
273	sub freeze_mainloop {	566	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	567	tick_inhibit_inc;
275		568
276	my $guard = Coro::guard {	569	&Guard::guard (\&tick_inhibit_dec);
277	$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($$) {
		580	my ($interval, $cb) = @_;
		581
		582	my $start = rand List::Util::min 180, $interval;
		583
		584	EV::periodic $start, $interval, 0, $cb
		585	}
		586
		587	=item cf::get_slot $time[, $priority[, $name]]
		588
		589	Allocate $time seconds of blocking CPU time at priority C<$priority>
		590	(default: 0): This call blocks and returns only when you have at least
		591	C<$time> seconds of cpu time till the next tick. The slot is only valid
		592	till the next cede.
		593
		594	Background jobs should use a priority less than zero, interactive jobs
		595	should use 100 or more.
		596
		597	The optional C<$name> can be used to identify the job to run. It might be
		598	used for statistical purposes and should identify the same time-class.
		599
		600	Useful for short background jobs.
		601
		602	=cut
		603
		604	our @SLOT_QUEUE;
		605	our $SLOT_QUEUE;
		606	our $SLOT_DECAY = 0.9;
		607
		608	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		609	$SLOT_QUEUE = Coro::async {
		610	$Coro::current->desc ("timeslot manager");
		611
		612	my $signal = new Coro::Signal;
		613	my $busy;
		614
		615	while () {
		616	next_job:
		617
		618	Coro::cede;
		619
		620	my $avail = cf::till_tick;
		621
		622	for (0 .. $#SLOT_QUEUE) {
		623	if ($SLOT_QUEUE[$_][0] <= $avail) {
		624	$busy = 0;
		625	my $job = splice @SLOT_QUEUE, $_, 1, ();
		626	$job->[2]->send;
		627	goto next_job;
		628	} else {
		629	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		630	}
		631	}
		632
		633	if (@SLOT_QUEUE) {
		634	wait_for_tick;
		635	} else {
		636	$busy = 0;
		637	Coro::schedule;
		638	}
278	};	639	}
279	$TICK_WATCHER->stop;	640	};
280	$guard	641
		642	sub get_slot($;$$) {
		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	$sig->wait;
281	}	655	}
282		656
283	=item cf::async { BLOCK }	657	=item cf::async { BLOCK }
284		658
285	Currently the same as Coro::async_pool, meaning you cannot use	659	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		664
291	BEGIN { *async = \&Coro::async_pool }	665	BEGIN { *async = \&Coro::async_pool }
292		666
293	=item cf::sync_job { BLOCK }	667	=item cf::sync_job { BLOCK }
294		668
295	The design of crossfire+ requires that the main coro ($Coro::main) is	669	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	670	is always able to handle events or is runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	671	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		672	acceptable.
298		673
299	If it must be done, put the blocking parts into C<sync_job>. This will run	674	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	675	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	676	server will be frozen during this time, so the block should either finish
302	fast or be very important.	677	fast or be very important.
…		…
304	=cut	679	=cut
305		680
306	sub sync_job(&) {	681	sub sync_job(&) {
307	my ($job) = @_;	682	my ($job) = @_;
308		683
309	if ($Coro::current == $Coro::main) {	684	if (in_main) {
		685	my $time = AE::time;
		686
310	# this is the main coro, too bad, we have to block	687	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	688	# till the operation succeeds, freezing the server :/
312		689
313	# TODO: use suspend/resume instead	690	#LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	691
315	my $freeze_guard = freeze_mainloop;	692	my $freeze_guard = freeze_mainloop;
316		693
317	my $busy = 1;	694	my $busy = 1;
318	my @res;	695	my @res;
319		696
320	(async {	697	(async {
		698	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	699	@res = eval { $job->() };
322	warn $@ if $@;	700	error $@ if $@;
323	undef $busy;	701	undef $busy;
324	})->prio (Coro::PRIO_MAX);	702	})->prio (Coro::PRIO_MAX);
325		703
326	while ($busy) {	704	while ($busy) {
327	Coro::cede or Event::one_event;	705	if (Coro::nready) {
		706	Coro::cede_notself;
		707	} else {
		708	EV::run EV::RUN_ONCE;
328	}	709	}
		710	}
		711
		712	my $time = AE::time - $time;
		713
		714	$TICK_START += $time; # do not account sync jobs to server load
329		715
330	wantarray ? @res : $res[0]	716	wantarray ? @res : $res[0]
331	} else {	717	} else {
332	# we are in another coroutine, how wonderful, everything just works	718	# we are in another coroutine, how wonderful, everything just works
333		719
…		…
353	$EXT_CORO{$coro+0} = $coro;	739	$EXT_CORO{$coro+0} = $coro;
354		740
355	$coro	741	$coro
356	}	742	}
357		743
358	sub write_runtime {	744	=item fork_call { }, @args
359	my $guard = cf::lock_acquire "write_runtime";
360		745
361	my $runtime = cf::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.
362		750
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	751	=cut
364	or return;
365		752
366	my $value = $cf::RUNTIME + 90 + 10;	753	sub post_fork {
367	# 10 is the runtime save interval, for a monotonic clock	754	reset_signals;
368	# 60 allows for the watchdog to kill the server.	755	}
369		756
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	757	sub fork_call(&@) {
371	and return;	758	my ($cb, @args) = @_;
372		759
373	# always fsync - this file is important	760	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	761	cf::post_fork;
375	and return;	762	&$cb
		763	} @args;
376		764
377	close $fh	765	wantarray ? @res : $res[-1]
378	or return;	766	}
379		767
380	aio_rename "$runtime~", $runtime	768	sub objinfo {
381	and return;
382
383	1	769	(
		770	"counter value" => cf::object::object_count,
		771	"objects created" => cf::object::create_count,
		772	"objects destroyed" => cf::object::destroy_count,
		773	"freelist size" => cf::object::free_count,
		774	"allocated objects" => cf::object::objects_size,
		775	"active objects" => cf::object::actives_size,
		776	)
		777	}
		778
		779	=item $coin = coin_from_name $name
		780
		781	=cut
		782
		783	our %coin_alias = (
		784	"silver" => "silvercoin",
		785	"silvercoin" => "silvercoin",
		786	"silvercoins" => "silvercoin",
		787	"gold" => "goldcoin",
		788	"goldcoin" => "goldcoin",
		789	"goldcoins" => "goldcoin",
		790	"platinum" => "platinacoin",
		791	"platinumcoin" => "platinacoin",
		792	"platinumcoins" => "platinacoin",
		793	"platina" => "platinacoin",
		794	"platinacoin" => "platinacoin",
		795	"platinacoins" => "platinacoin",
		796	"royalty" => "royalty",
		797	"royalties" => "royalty",
		798	);
		799
		800	sub coin_from_name($) {
		801	$coin_alias{$_[0]}
		802	? cf::arch::find $coin_alias{$_[0]}
		803	: undef
		804	}
		805
		806	=item $value = cf::db_get $family => $key
		807
		808	Returns a single value from the environment database.
		809
		810	=item cf::db_put $family => $key => $value
		811
		812	Stores the given C<$value> in the family. It can currently store binary
		813	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		814
		815	=item $db = cf::db_table "name"
		816
		817	Create and/or open a new database table. The string must not be "db" and must be unique
		818	within each server.
		819
		820	=cut
		821
		822	sub db_table($) {
		823	cf::error "db_get called from main context"
		824	if $Coro::current == $Coro::main;
		825
		826	my ($name) = @_;
		827	my $db = BDB::db_create $DB_ENV;
		828
		829	eval {
		830	$db->set_flags (BDB::CHKSUM);
		831
		832	utf8::encode $name;
		833	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		834	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		835	cf::cleanup "db_open(db): $!" if $!;
		836	};
		837	cf::cleanup "db_open(db): $@" if $@;
		838
		839	$db
		840	}
		841
		842	our $DB;
		843
		844	sub db_init {
		845	$DB ||= db_table "db";
		846	}
		847
		848	sub db_get($$) {
		849	my $key = "$_[0]/$_[1]";
		850
		851	cf::error "db_get called from main context"
		852	if $Coro::current == $Coro::main;
		853
		854	BDB::db_get $DB, undef, $key, my $data;
		855
		856	$! ? ()
		857	: $data
		858	}
		859
		860	sub db_put($$$) {
		861	BDB::dbreq_pri 4;
		862	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		863	}
		864
		865	=item cf::cache $id => [$paths...], $processversion => $process
		866
		867	Generic caching function that returns the value of the resource $id,
		868	caching and regenerating as required.
		869
		870	This function can block.
		871
		872	=cut
		873
		874	sub cache {
		875	my ($id, $src, $processversion, $process) = @_;
		876
		877	my $meta =
		878	join "\x00",
		879	$processversion,
		880	map {
		881	aio_stat $_
		882	and Carp::croak "$_: $!";
		883
		884	($_, (stat _)[7,9])
		885	} @$src;
		886
		887	my $dbmeta = db_get cache => "$id/meta";
		888	if ($dbmeta ne $meta) {
		889	# changed, we may need to process
		890
		891	my @data;
		892	my $md5;
		893
		894	for (0 .. $#$src) {
		895	$data[$_] = load_file $src->[$_];
		896	}
		897
		898	# if processing is expensive, check
		899	# checksum first
		900	if (1) {
		901	$md5 =
		902	join "\x00",
		903	$processversion,
		904	map {
		905	cf::cede_to_tick;
		906	($src->[$_], Digest::MD5::md5_hex $data[$_])
		907	} 0.. $#$src;
		908
		909
		910	my $dbmd5 = db_get cache => "$id/md5";
		911	if ($dbmd5 eq $md5) {
		912	db_put cache => "$id/meta", $meta;
		913
		914	return db_get cache => "$id/data";
		915	}
		916	}
		917
		918	my $t1 = EV::time;
		919	my $data = $process->(\@data);
		920	my $t2 = EV::time;
		921
		922	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		923
		924	db_put cache => "$id/data", $data;
		925	db_put cache => "$id/md5" , $md5;
		926	db_put cache => "$id/meta", $meta;
		927
		928	return $data;
		929	}
		930
		931	db_get cache => "$id/data"
		932	}
		933
		934	=item cf::datalog type => key => value, ...
		935
		936	Log a datalog packet of the given type with the given key-value pairs.
		937
		938	=cut
		939
		940	sub datalog($@) {
		941	my ($type, %kv) = @_;
		942	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	943	}
385		944
386	=back	945	=back
387		946
388	=cut	947	=cut
389		948
390	#############################################################################	949	#############################################################################
391		950
392	=head2 ATTACHABLE OBJECTS	951	=head2 ATTACHABLE OBJECTS
393		952
394	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
395	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")
396	to it. All such attachable objects support the following methods.	955	to it. All such attachable objects support the following methods.
397		956
398	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>
399	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
400	crossfire+).	959	Deliantra).
401		960
402	=over 4	961	=over 4
403		962
404	=item $attachable->attach ($attachment, key => $value...)	963	=item $attachable->attach ($attachment, key => $value...)
405		964
…		…
449	=item cf::CLASS::attachment $name, ...	1008	=item cf::CLASS::attachment $name, ...
450		1009
451	Register an attachment by C<$name> through which attachable objects of the	1010	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	1011	given CLASS can refer to this attachment.
453		1012
454	Some classes such as crossfire maps and objects can specify attachments	1013	Some classes such as deliantra maps and objects can specify attachments
455	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.
456		1015
457	These calls expect any number of the following handler/hook descriptions:	1016	These calls expect any number of the following handler/hook descriptions:
458		1017
459	=over 4	1018	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	1127	$registry = $CB_TYPE[$object_type] ||= [];
569		1128
570	} elsif ($type eq "subtype") {	1129	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	1130	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	1131	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1132	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		1133
575	} elsif ($type eq "package") {	1134	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	1135	my $pkg = shift @arg;
577		1136
578	while (my ($name, $id) = each %cb_id) {	1137	while (my ($name, $id) = each %cb_id) {
…		…
583		1142
584	} elsif (exists $cb_id{$type}) {	1143	} elsif (exists $cb_id{$type}) {
585	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1144	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
586		1145
587	} elsif (ref $type) {	1146	} elsif (ref $type) {
588	warn "attaching objects not supported, ignoring.\n";	1147	error "attaching objects not supported, ignoring.\n";
589		1148
590	} else {	1149	} else {
591	shift @arg;	1150	shift @arg;
592	warn "attach argument '$type' not supported, ignoring.\n";	1151	error "attach argument '$type' not supported, ignoring.\n";
593	}	1152	}
594	}	1153	}
595	}	1154	}
596		1155
597	sub _object_attach {	1156	sub _object_attach {
…		…
607	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
608	}	1167	}
609		1168
610	$obj->{$name} = \%arg;	1169	$obj->{$name} = \%arg;
611	} else {	1170	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	1171	info "object uses attachment '$name' which is not available, postponing.\n";
613	}	1172	}
614		1173
615	$obj->{_attachment}{$name} = undef;	1174	$obj->{_attachment}{$name} = undef;
616	}	1175	}
617		1176
…		…
619	if (ref $_[0]) {	1178	if (ref $_[0]) {
620	_object_attach @_;	1179	_object_attach @_;
621	} else {	1180	} else {
622	_attach shift->_attach_registry, @_;	1181	_attach shift->_attach_registry, @_;
623	}	1182	}
		1183	_recalc_want;
624	};	1184	};
625		1185
626	# all those should be optimised	1186	# all those should be optimised
627	sub cf::attachable::detach {	1187	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	1191	delete $obj->{_attachment}{$name};
632	reattach ($obj);	1192	reattach ($obj);
633	} else {	1193	} else {
634	Carp::croak "cannot, currently, detach class attachments";	1194	Carp::croak "cannot, currently, detach class attachments";
635	}	1195	}
		1196	_recalc_want;
636	};	1197	};
637		1198
638	sub cf::attachable::attached {	1199	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1200	my ($obj, $name) = @_;
640		1201
…		…
655	";	1216	";
656	die if $@;	1217	die if $@;
657	}	1218	}
658		1219
659	our $override;	1220	our $override;
660	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?
661		1222
662	sub override {	1223	sub override {
663	$override = 1;	1224	$override = 1;
664	@invoke_results = ();	1225	@INVOKE_RESULTS = (@_);
665	}	1226	}
666		1227
667	sub do_invoke {	1228	sub do_invoke {
668	my $event = shift;	1229	my $event = shift;
669	my $callbacks = shift;	1230	my $callbacks = shift;
670		1231
671	@invoke_results = ();	1232	@INVOKE_RESULTS = ();
672		1233
673	local $override;	1234	local $override;
674		1235
675	for (@$callbacks) {	1236	for (@$callbacks) {
676	eval { &{$_->[1]} };	1237	eval { &{$_->[1]} };
677		1238
678	if ($@) {	1239	if ($@) {
679	warn "$@";
680	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1240	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
681	override;	1241	override;
682	}	1242	}
683		1243
684	return 1 if $override;	1244	return 1 if $override;
685	}	1245	}
686		1246
687	0	1247	0
688	}	1248	}
689		1249
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1250	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1251
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1252	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1253
694	Generate an object-specific event with the given arguments.	1254	Generate an object-specific event with the given arguments.
695		1255
696	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
697	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
698	results (if you must, access C<@cf::invoke_results> directly).	1258	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1259
700	=back	1260	=back
701		1261
702	=cut	1262	=cut
703		1263
704	#############################################################################	1264	#############################################################################
705	# 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, $ob2
		1307	}
706		1308
707	sub reattach {	1309	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1310	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1311	my ($obj) = @_;
710		1312
		1313	# no longer needed after getting rid of delete_package?
711	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
712		1315
713	my $registry = $obj->registry;	1316	my $registry = $obj->registry;
714		1317
715	@$registry = ();	1318	@$registry = ();
716		1319
…		…
721	for (@$attach) {	1324	for (@$attach) {
722	my ($klass, @attach) = @$_;	1325	my ($klass, @attach) = @$_;
723	_attach $registry, $klass, @attach;	1326	_attach $registry, $klass, @attach;
724	}	1327	}
725	} else {	1328	} else {
726	warn "object uses attachment '$name' that is not available, postponing.\n";	1329	info "object uses attachment '$name' that is not available, postponing.\n";
727	}	1330	}
728	}	1331	}
729	}	1332	}
730		1333
731	cf::attachable->attach (	1334	cf::attachable->attach (
732	prio => -1000000,	1335	prio => -1000000,
733	on_instantiate => sub {	1336	on_instantiate => sub {
734	my ($obj, $data) = @_;	1337	my ($obj, $data) = @_;
735		1338
736	$data = from_json $data;	1339	$data = decode_json $data;
737		1340
738	for (@$data) {	1341	for (@$data) {
739	my ($name, $args) = @$_;	1342	my ($name, $args) = @$_;
740		1343
741	$obj->attach ($name, %{$args || {} });	1344	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1360	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1361	my ($filename, $rdata, $objs) = @_;
759		1362
760	sync_job {	1363	sync_job {
761	if (length $$rdata) {	1364	if (length $$rdata) {
		1365	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1366	trace sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1367	$decname, length $$rdata, scalar @$objs
		1368	if $VERBOSE_IO;
764		1369
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1370	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1371	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1372	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	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	}
769	close $fh;	1377	aio_close $fh;
770		1378
771	if (@$objs) {	1379	if (@$objs) {
772	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) {
773	chmod SAVE_MODE, $fh;	1381	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1382	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1383	aio_write $fh, 0, (length $data), $data, 0;
776	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	}
777	close $fh;	1388	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1389	aio_rename "$filename.pst~", "$filename.pst";
779	}	1390	}
780	} else {	1391	} else {
781	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
782	}	1393	}
783		1394
784	aio_rename "$filename~", $filename;	1395	aio_rename "$filename~", $filename;
		1396
		1397	$filename =~ s%/[^/]+$%%;
		1398	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1399	} else {
786	warn "FATAL: $filename~: $!\n";	1400	error "unable to save objects: $filename~: $!\n";
787	}	1401	}
788	} else {	1402	} else {
789	aio_unlink $filename;	1403	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1404	aio_unlink "$filename.pst";
791	}	1405	}
792	}	1406	};
793	}	1407	}
794		1408
795	sub object_freezer_as_string {	1409	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1410	my ($rdata, $objs) = @_;
797		1411
…		…
809	or return;	1423	or return;
810		1424
811	unless (aio_stat "$filename.pst") {	1425	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1426	(aio_load "$filename.pst", $av) >= 0
813	or return;	1427	or return;
		1428
814	$av = eval { (Storable::thaw $av)->{objs} };	1429	my $st = eval { Coro::Storable::thaw $av };
		1430	$av = $st->{objs};
815	}	1431	}
816		1432
		1433	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1434	trace sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1435	$decname, length $data, scalar @{$av || []}
		1436	if $VERBOSE_IO;
		1437
819	return ($data, $av);	1438	($data, $av)
820	}	1439	}
		1440
		1441	=head2 COMMAND CALLBACKS
		1442
		1443	=over 4
		1444
		1445	=cut
821		1446
822	#############################################################################	1447	#############################################################################
823	# command handling &c	1448	# command handling &c
824		1449
825	=item cf::register_command $name => \&callback($ob,$args);	1450	=item cf::register_command $name => \&callback($ob,$args)
826		1451
827	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
828	$name.	1453	$name.
829		1454
830	=cut	1455	=cut
…		…
836	#warn "registering command '$name/$time' to '$caller'";	1461	#warn "registering command '$name/$time' to '$caller'";
837		1462
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1463	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1464	}
840		1465
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1466	=item cf::register_extcmd $name => \&callback($pl,@args)
842		1467
843	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.
844		1473
845	If the callback returns something, it is sent back as if reply was being	1474	The values will be sent back to the client.
846	called.
847		1475
848	=cut	1476	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
849		1477
		1478	Same as C<cf::register_extcmd>, but instead of returning values, the
		1479	callback needs to clal the C<$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
850	sub register_extcmd {	1498	sub register_extcmd($$) {
851	my ($name, $cb) = @_;	1499	my ($name, $cb) = @_;
852		1500
853	$EXTCMD{$name} = $cb;	1501	$EXTCMD{$name} = $cb;
854	}	1502	}
855		1503
		1504	sub register_async_extcmd($$) {
		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} = $cb;
		1520	}
		1521
		1522	use File::Glob ();
		1523
856	cf::player->attach (	1524	cf::player->attach (
857	on_command => sub {	1525	on_unknown_command => sub {
858	my ($pl, $name, $params) = @_;	1526	my ($pl, $name, $params) = @_;
859		1527
860	my $cb = $COMMAND{$name}	1528	my $cb = $COMMAND{$name}
861	or return;	1529	or return;
862		1530
…		…
867	cf::override;	1535	cf::override;
868	},	1536	},
869	on_extcmd => sub {	1537	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1538	my ($pl, $buf) = @_;
871		1539
872	my $msg = eval { from_json $buf };	1540	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1541
874	if (ref $msg) {	1542	if (ref $msg) {
		1543	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1544
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1545	if (my $cb = $EXTACMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1546	$cb->(
877	$pl->ext_reply ($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);
878	}	1559	}
		1560
		1561	$pl->ext_msg ("reply-$reply", @reply)
		1562	if $reply;
879	}	1563	}
		1564
880	} else {	1565	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1566	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1567	}
883		1568
884	cf::override;	1569	cf::override;
885	},	1570	},
886	);	1571	);
887		1572
		1573	# "readahead" all extensions
888	sub load_extension {	1574	sub cache_extensions {
889	my ($path) = @_;	1575	my $grp = IO::AIO::aio_group;
890		1576
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1578	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1579	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1580	}
916	die $@;
917	}	1581	};
918		1582
919	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;
920	}	1595	}
921		1596
922	sub load_extensions {	1597	sub load_extensions {
		1598	info "loading extensions...";
		1599
		1600	%EXT_CFG = ();
		1601
		1602	cf::sync_job {
		1603	my %todo;
		1604
923	for my $ext (<$LIBDIR/*.ext>) {	1605	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1606	next unless -r $path;
925	eval {	1607
926	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 $active;
		1679	}
927	1	1680	}
928	} or warn "$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	}
929	}	1693	};
930	}	1694	}
931		1695
932	#############################################################################	1696	#############################################################################
933		1697
		1698	=back
		1699
934	=head2 CORE EXTENSIONS	1700	=head2 CORE EXTENSIONS
935		1701
936	Functions and methods that extend core crossfire objects.	1702	Functions and methods that extend core deliantra objects.
937		1703
938	=cut	1704	=cut
939		1705
940	package cf::player;	1706	package cf::player;
941		1707
…		…
943		1709
944	=head3 cf::player	1710	=head3 cf::player
945		1711
946	=over 4	1712	=over 4
947		1713
		1714	=item cf::player::num_playing
		1715
		1716	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1717
		1718	=cut
		1719
		1720	sub num_playing {
		1721	scalar grep
		1722	$_->ob->map
		1723	&& !$_->hidden
		1724	&& !$_->ob->flag (cf::FLAG_WIZ),
		1725	cf::player::list
		1726	}
		1727
948	=item cf::player::find $login	1728	=item cf::player::find $login
949		1729
950	Returns the given player object, loading it if necessary (might block).	1730	Returns the given player object, loading it if necessary (might block).
951		1731
952	=cut	1732	=cut
953		1733
954	sub playerdir($) {	1734	sub playerdir($) {
955	cf::localdir	1735	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1736	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1737	}
961		1738
962	sub path($) {	1739	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1740	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1741
965	(playerdir $login) . "/$login.pl"	1742	(playerdir $login) . "/playerdata"
966	}	1743	}
967		1744
968	sub find_active($) {	1745	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1746	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1747	and $cf::PLAYER{$_[0]}->active
…		…
973		1750
974	sub exists($) {	1751	sub exists($) {
975	my ($login) = @_;	1752	my ($login) = @_;
976		1753
977	$cf::PLAYER{$login}	1754	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1755	or !aio_stat path $login
979	}	1756	}
980		1757
981	sub find($) {	1758	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1759	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1760	my $login = $_[0];
984		1761
985	my $guard = cf::lock_acquire "user_find:$login";	1762	my $guard = cf::lock_acquire "user_find:$login";
986		1763
987	$cf::PLAYER{$_[0]} || do {	1764	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1765	# rename old playerfiles to new ones
		1766	#TODO: remove when no longer required
		1767	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1768	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1769	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1770	aio_unlink +(playerdir $login) . "/$login.pl";
		1771
		1772	my $f = new_from_file cf::object::thawer path $login
989	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;
990	$cf::PLAYER{$login} = $pl	1780	$cf::PLAYER{$login} = $pl
991	}	1781	}
992	}	1782	}
993	}	1783	}
		1784
		1785	cf::player->attach (
		1786	on_load => sub {
		1787	my ($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	);
994		1797
995	sub save($) {	1798	sub save($) {
996	my ($pl) = @_;	1799	my ($pl) = @_;
997		1800
998	return if $pl->{deny_save};	1801	return if $pl->{deny_save};
…		…
1003	return if $pl->{deny_save};	1806	return if $pl->{deny_save};
1004		1807
1005	aio_mkdir playerdir $pl, 0770;	1808	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1809	$pl->{last_save} = $cf::RUNTIME;
1007		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
1008	$pl->save_pl ($path);	1816	$pl->save_pl ($path);
1009	Coro::cede;	1817	cf::cede_to_tick;
1010	}	1818	}
1011		1819
1012	sub new($) {	1820	sub new($) {
1013	my ($login) = @_;	1821	my ($login) = @_;
1014		1822
…		…
1020	$cf::PLAYER{$login} = $self;	1828	$cf::PLAYER{$login} = $self;
1021		1829
1022	$self	1830	$self
1023	}	1831	}
1024		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
1025	=item $pl->quit_character	1843	=item $pl->quit_character
1026		1844
1027	Nukes the player without looking back. If logged in, the connection will	1845	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1846	be destroyed. May block for a long time.
1029		1847
1030	=cut	1848	=cut
1031		1849
1032	sub quit_character {	1850	sub quit_character {
1033	my ($pl) = @_;	1851	my ($pl) = @_;
1034		1852
		1853	my $name = $pl->ob->name;
		1854
1035	$pl->{deny_save} = 1;	1855	$pl->{deny_save} = 1;
1036	$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
1037		1857
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1858	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1039	$pl->deactivate;	1859	$pl->deactivate;
		1860
		1861	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1862	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1863	ext::highscore::check ($pl->ob);
		1864
1041	$pl->ns->destroy if $pl->ns;	1865	$pl->ns->destroy if $pl->ns;
1042		1866
1043	my $path = playerdir $pl;	1867	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1868	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1869	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1870	delete $cf::PLAYER{$pl->ob->name};
1047	$pl->destroy;	1871	$pl->destroy;
		1872
		1873	my $prefix = qr<^~\Q$name\E/>;
		1874
		1875	# nuke player maps
		1876	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1877
1048	IO::AIO::aio_rmtree $temp;	1878	IO::AIO::aio_rmtree $temp;
		1879	}
		1880
		1881	=item $pl->kick
		1882
		1883	Kicks a player out of the game. This destroys the connection.
		1884
		1885	=cut
		1886
		1887	sub kick {
		1888	my ($pl, $kicker) = @_;
		1889
		1890	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1891	$pl->killer ("kicked");
		1892	$pl->ns->destroy;
1049	}	1893	}
1050		1894
1051	=item cf::player::list_logins	1895	=item cf::player::list_logins
1052		1896
1053	Returns am arrayref of all valid playernames in the system, can take a	1897	Returns am arrayref of all valid playernames in the system, can take a
1054	while and may block, so not sync_job-capable, ever.	1898	while and may block, so not sync_job-capable, ever.
1055		1899
1056	=cut	1900	=cut
1057		1901
1058	sub list_logins {	1902	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1903	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1904	or return [];
1061		1905
1062	my @logins;	1906	my @logins;
1063		1907
1064	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") {
1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1914	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1066	aio_read $fh, 0, 512, my $buf, 0 or next;	1915	aio_read $fh, 0, 512, my $buf, 0 or next;
1067	$buf !~ /^password -------------$/m or next; # official not-valid tag	1916	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1917	}
1068		1918
1069	utf8::decode $login;	1919	utf8::decode $login;
1070	push @logins, $login;	1920	push @logins, $login;
1071	}	1921	}
1072		1922
1073	\@logins	1923	\@logins
1074	}	1924	}
1075		1925
1076	=item $player->maps	1926	=item $player->maps
		1927
		1928	=item cf::player::maps $login
1077		1929
1078	Returns an arrayref of map paths that are private for this	1930	Returns an arrayref of map paths that are private for this
1079	player. May block.	1931	player. May block.
1080		1932
1081	=cut	1933	=cut
…		…
1099	}	1951	}
1100		1952
1101	\@paths	1953	\@paths
1102	}	1954	}
1103		1955
		1956	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1957
		1958	Expand deliantra pod fragments into protocol xml.
		1959
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1960	=item $player->ext_msg ($type, @msg)
1105		1961
1106	Sends an ext reply to the player.	1962	Sends an ext event to the client.
1107		1963
1108	=cut	1964	=cut
1109		1965
1110	sub ext_reply($$$%) {	1966	sub ext_msg($$@) {
1111	my ($self, $id, %msg) = @_;	1967	my ($self, $type, @msg) = @_;
1112		1968
1113	$msg{msgid} = $id;	1969	$self->ns->ext_msg ($type, @msg);
1114
1115	$self->send ("ext " . cf::to_json \%msg);
1116	}	1970	}
1117		1971
1118	package cf;	1972	=head3 cf::region
		1973
		1974	=over 4
		1975
		1976	=cut
		1977
		1978	package cf::region;
		1979
		1980	=item cf::region::find_by_path $path
		1981
		1982	Tries to decuce the likely region for a map knowing only its path.
		1983
		1984	=cut
		1985
		1986	sub find_by_path($) {
		1987	my ($path) = @_;
		1988
		1989	$path =~ s/^~[^\/]*//; # skip ~login
		1990
		1991	my ($match, $specificity);
		1992
		1993	for my $region (list) {
		1994	if ($region->{match} && $path =~ $region->{match}) {
		1995	($match, $specificity) = ($region, $region->specificity)
		1996	if $region->specificity > $specificity;
		1997	}
		1998	}
		1999
		2000	$match
		2001	}
1119		2002
1120	=back	2003	=back
1121
1122		2004
1123	=head3 cf::map	2005	=head3 cf::map
1124		2006
1125	=over 4	2007	=over 4
1126		2008
…		…
1138	our $MAX_RESET = 3600;	2020	our $MAX_RESET = 3600;
1139	our $DEFAULT_RESET = 3000;	2021	our $DEFAULT_RESET = 3000;
1140		2022
1141	sub generate_random_map {	2023	sub generate_random_map {
1142	my ($self, $rmp) = @_;	2024	my ($self, $rmp) = @_;
1143	# mit "rum" bekleckern, nicht	2025
		2026	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2027
1144	$self->_create_random_map (	2028	$self->_create_random_map ($rmp);
1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1148	$rmp->{exit_on_final_map},
1149	$rmp->{xsize}, $rmp->{ysize},
1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1155	(cf::region::find $rmp->{region}), $rmp->{custom}
1156	)
1157	}	2029	}
1158		2030
1159	=item cf::map->register ($regex, $prio)	2031	=item cf::map->register ($regex, $prio)
1160		2032
1161	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
…		…
1166		2038
1167	sub register {	2039	sub register {
1168	my (undef, $regex, $prio) = @_;	2040	my (undef, $regex, $prio) = @_;
1169	my $pkg = caller;	2041	my $pkg = caller;
1170		2042
1171	no strict;
1172	push @{"$pkg\::ISA"}, __PACKAGE__;	2043	push @{"$pkg\::ISA"}, __PACKAGE__;
1173		2044
1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2045	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1175	}	2046	}
1176		2047
1177	# also paths starting with '/'	2048	# also paths starting with '/'
1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2049	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1179		2050
1180	sub thawer_merge {	2051	sub thawer_merge {
1181	my ($self, $merge) = @_;	2052	my ($self, $merge) = @_;
1182		2053
1183	# we have to keep some variables in memory intact	2054	# we have to keep some variables in memory intact
1184	local $self->{path};	2055	local $self->{path};
1185	local $self->{load_path};	2056	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		2057
1189	$self->SUPER::thawer_merge ($merge);	2058	$self->SUPER::thawer_merge ($merge);
1190	}	2059	}
1191		2060
1192	sub normalise {	2061	sub normalise {
1193	my ($path, $base) = @_;	2062	my ($path, $base) = @_;
1194		2063
1195	$path = "$path"; # make sure its a string	2064	$path = "$path"; # make sure it's a string
1196		2065
1197	$path =~ s/\.map$//;	2066	$path =~ s/\.map$//;
1198		2067
1199	# map plan:	2068	# map plan:
1200	#	2069	#
…		…
1215	$base =~ s{[^/]+/?$}{};	2084	$base =~ s{[^/]+/?$}{};
1216	$path = "$base/$path";	2085	$path = "$base/$path";
1217	}	2086	}
1218		2087
1219	for ($path) {	2088	for ($path) {
1220	redo if s{//}{/};
1221	redo if s{/\.?/}{/};	2089	redo if s{/\.?/}{/};
1222	redo if s{/[^/]+/\.\./}{/};	2090	redo if s{/[^/]+/\.\./}{/};
1223	}	2091	}
1224		2092
1225	$path	2093	$path
…		…
1239	$self->init; # pass $1 etc.	2107	$self->init; # pass $1 etc.
1240	return $self;	2108	return $self;
1241	}	2109	}
1242	}	2110	}
1243		2111
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	2112	Carp::cluck "unable to resolve path '$path' (base '$base')";
1245	()	2113	()
1246	}	2114	}
1247		2115
		2116	# may re-bless or do other evil things
1248	sub init {	2117	sub init {
1249	my ($self) = @_;	2118	my ($self) = @_;
1250		2119
1251	$self	2120	$self
1252	}	2121	}
…		…
1264		2133
1265	# the original (read-only) location	2134	# the original (read-only) location
1266	sub load_path {	2135	sub load_path {
1267	my ($self) = @_;	2136	my ($self) = @_;
1268		2137
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2138	"$MAPDIR/$self->{path}.map"
1270	}	2139	}
1271		2140
1272	# the temporary/swap location	2141	# the temporary/swap location
1273	sub save_path {	2142	sub save_path {
1274	my ($self) = @_;	2143	my ($self) = @_;
1275		2144
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2145	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2146	"$TMPDIR/$path.map"
1278	}	2147	}
1279		2148
1280	# the unique path, undef == no special unique path	2149	# the unique path, undef == no special unique path
1281	sub uniq_path {	2150	sub uniq_path {
1282	my ($self) = @_;	2151	my ($self) = @_;
1283		2152
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2153	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2154	"$UNIQUEDIR/$path"
1286	}	2155	}
1287		2156
1288	# and all this just because we cannot iterate over	2157	sub decay_objects {
1289	# all maps in C++...
1290	sub change_all_map_light {
1291	my ($change) = @_;	2158	my ($self) = @_;
1292		2159
1293	$_->change_map_light ($change)	2160	return if $self->{deny_reset};
1294	for grep $_->outdoor, values %cf::MAP;	2161
		2162	$self->do_decay_objects;
1295	}	2163	}
1296		2164
1297	sub unlink_save {	2165	sub unlink_save {
1298	my ($self) = @_;	2166	my ($self) = @_;
1299		2167
…		…
1304		2172
1305	sub load_header_from($) {	2173	sub load_header_from($) {
1306	my ($self, $path) = @_;	2174	my ($self, $path) = @_;
1307		2175
1308	utf8::encode $path;	2176	utf8::encode $path;
1309	#aio_open $path, O_RDONLY, 0	2177	my $f = new_from_file cf::object::thawer $path
1310	# or return;
1311
1312	$self->_load_header ($path)
1313	or return;	2178	or return;
1314		2179
		2180	$self->_load_header ($f)
		2181	or return;
		2182
		2183	local $MAP_LOADING{$self->{path}} = $self;
		2184	$f->resolve_delayed_derefs;
		2185
1315	$self->{load_path} = $path;	2186	$self->{load_path} = $path;
1316		2187
1317	1	2188	1
1318	}	2189	}
1319		2190
		2191	# used to laod the header of an original map
1320	sub load_header_orig {	2192	sub load_header_orig {
1321	my ($self) = @_;	2193	my ($self) = @_;
1322		2194
1323	$self->load_header_from ($self->load_path)	2195	$self->load_header_from ($self->load_path)
1324	}	2196	}
1325		2197
		2198	# used to laod the header of an instantiated map
1326	sub load_header_temp {	2199	sub load_header_temp {
1327	my ($self) = @_;	2200	my ($self) = @_;
1328		2201
1329	$self->load_header_from ($self->save_path)	2202	$self->load_header_from ($self->save_path)
1330	}	2203	}
1331		2204
		2205	# called after loading the header from an instantiated map
1332	sub prepare_temp {	2206	sub prepare_temp {
1333	my ($self) = @_;	2207	my ($self) = @_;
1334		2208
1335	$self->last_access ((delete $self->{last_access})	2209	$self->last_access ((delete $self->{last_access})
1336	|| $cf::RUNTIME); #d#	2210	|| $cf::RUNTIME); #d#
1337	# safety	2211	# safety
1338	$self->{instantiate_time} = $cf::RUNTIME	2212	$self->{instantiate_time} = $cf::RUNTIME
1339	if $self->{instantiate_time} > $cf::RUNTIME;	2213	if $self->{instantiate_time} > $cf::RUNTIME;
1340	}	2214	}
1341		2215
		2216	# called after loading the header from an original map
1342	sub prepare_orig {	2217	sub prepare_orig {
1343	my ($self) = @_;	2218	my ($self) = @_;
1344		2219
1345	$self->{load_original} = 1;	2220	$self->{load_original} = 1;
1346	$self->{instantiate_time} = $cf::RUNTIME;	2221	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1357	$self->load_header_orig	2232	$self->load_header_orig
1358	or return;	2233	or return;
1359	$self->prepare_orig;	2234	$self->prepare_orig;
1360	}	2235	}
1361		2236
		2237	$self->{deny_reset} = 1
		2238	if $self->no_reset;
		2239
		2240	$self->default_region (cf::region::find_by_path $self->{path})
		2241	unless $self->default_region;
		2242
1362	1	2243	1
1363	}	2244	}
1364		2245
1365	sub find;	2246	sub find;
1366	sub find {	2247	sub find {
1367	my ($path, $origin) = @_;	2248	my ($path, $origin) = @_;
1368		2249
		2250	cf::cede_to_tick;
		2251
1369	$path = normalise $path, $origin && $origin->path;	2252	$path = normalise $path, $origin;
1370		2253
		2254	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1371	cf::lock_wait "map_find:$path";	2255	my $guard2 = cf::lock_acquire "map_find:$path";
1372		2256
1373	$cf::MAP{$path} || do {	2257	$cf::MAP{$path} || do {
1374	my $guard = cf::lock_acquire "map_find:$path";
1375	my $map = new_from_path cf::map $path	2258	my $map = new_from_path cf::map $path
1376	or return;	2259	or return;
1377		2260
1378	$map->{last_save} = $cf::RUNTIME;	2261	$map->{last_save} = $cf::RUNTIME;
1379		2262
1380	$map->load_header	2263	$map->load_header
1381	or return;	2264	or return;
1382		2265
1383	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2266	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1384	# doing this can freeze the server in a sync job, obviously	2267	# doing this can freeze the server in a sync job, obviously
1385	#$cf::WAIT_FOR_TICK->wait;	2268	#$cf::WAIT_FOR_TICK->wait;
		2269	undef $guard2;
		2270	undef $guard1;
1386	$map->reset;	2271	$map->reset;
1387	undef $guard;
1388	return find $path;	2272	return find $path;
1389	}	2273	}
1390		2274
1391	$cf::MAP{$path} = $map	2275	$cf::MAP{$path} = $map
1392	}	2276	}
1393	}	2277	}
1394		2278
1395	sub pre_load { }	2279	sub pre_load { }
1396	sub post_load { }	2280	#sub post_load { } # XS
1397		2281
1398	sub load {	2282	sub load {
1399	my ($self) = @_;	2283	my ($self) = @_;
1400		2284
1401	local $self->{deny_reset} = 1; # loading can take a long time	2285	local $self->{deny_reset} = 1; # loading can take a long time
1402		2286
1403	my $path = $self->{path};	2287	my $path = $self->{path};
		2288
		2289	{
1404	my $guard = cf::lock_acquire "map_load:$path";	2290	my $guard = cf::lock_acquire "map_data:$path";
1405		2291
1406	return if $self->in_memory != cf::MAP_SWAPPED;	2292	return unless $self->valid;
		2293	return unless $self->state == cf::MAP_SWAPPED;
1407		2294
1408	$self->in_memory (cf::MAP_LOADING);
1409
1410	$self->alloc;	2295	$self->alloc;
1411		2296
1412	$self->pre_load;	2297	$self->pre_load;
		2298	cf::cede_to_tick;
1413		2299
1414	$self->_load_objects ($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)
1415	or return;	2304	or return;
1416		2305
1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2306	$self->post_load_original
1418	if delete $self->{load_original};	2307	if delete $self->{load_original};
1419		2308
1420	if (my $uniq = $self->uniq_path) {	2309	if (my $uniq = $self->uniq_path) {
1421	utf8::encode $uniq;	2310	utf8::encode $uniq;
1422	if (aio_open $uniq, O_RDONLY, 0) {	2311	unless (aio_stat $uniq) {
		2312	if (my $f = new_from_file cf::object::thawer $uniq) {
1423	$self->clear_unique_items;	2313	$self->clear_unique_items;
1424	$self->_load_objects ($uniq, 0);	2314	$self->_load_objects ($f);
		2315	$f->resolve_delayed_derefs;
		2316	}
		2317	}
1425	}	2318	}
1426	}
1427		2319
1428	Coro::cede;	2320	$f->resolve_delayed_derefs;
		2321	} else {
		2322	$self->post_load_original
		2323	if delete $self->{load_original};
		2324	}
1429		2325
		2326	$self->state (cf::MAP_INACTIVE);
		2327
		2328	cf::cede_to_tick;
1430	# now do the right thing for maps	2329	# now do the right thing for maps
1431	$self->link_multipart_objects;	2330	$self->link_multipart_objects;
1432
1433	unless ($self->{deny_activate}) {
1434	$self->decay_objects;
1435	$self->fix_auto_apply;
1436	$self->update_buttons;
1437	Coro::cede;
1438	$self->set_darkness_map;
1439	$self->difficulty ($self->estimate_difficulty)	2331	$self->difficulty ($self->estimate_difficulty)
1440	unless $self->difficulty;	2332	unless $self->difficulty;
1441	Coro::cede;	2333	cf::cede_to_tick;
1442	$self->activate;	2334
		2335	unless ($self->{deny_activate}) {
		2336	$self->decay_objects;
		2337	$self->fix_auto_apply;
		2338	$self->update_buttons;
		2339	cf::cede_to_tick;
		2340	#$self->activate; # no longer activate maps automatically
		2341	}
		2342
		2343	$self->{last_save} = $cf::RUNTIME;
		2344	$self->last_access ($cf::RUNTIME);
1443	}	2345	}
1444		2346
1445	$self->post_load;	2347	$self->post_load;
1446		2348
1447	$self->in_memory (cf::MAP_IN_MEMORY);	2349	1
1448	}	2350	}
1449		2351
		2352	# customize the map for a given player, i.e.
		2353	# return the _real_ map. used by e.g. per-player
		2354	# maps to change the path to ~playername/mappath
1450	sub customise_for {	2355	sub customise_for {
1451	my ($self, $ob) = @_;	2356	my ($self, $ob) = @_;
1452		2357
1453	return find "~" . $ob->name . "/" . $self->{path}	2358	return find "~" . $ob->name . "/" . $self->{path}
1454	if $self->per_player;	2359	if $self->per_player;
1455		2360
		2361	# return find "?party/" . $ob->name . "/" . $self->{path}
		2362	# if $self->per_party;
		2363
1456	$self	2364	$self
1457	}
1458
1459	# find and load all maps in the 3x3 area around a map
1460	sub load_diag {
1461	my ($map) = @_;
1462
1463	my @diag; # diagonal neighbours
1464
1465	for (0 .. 3) {
1466	my $neigh = $map->tile_path ($_)
1467	or next;
1468	$neigh = find $neigh, $map
1469	or next;
1470	$neigh->load;
1471
1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1474	}
1475
1476	for (@diag) {
1477	my $neigh = find @$_
1478	or next;
1479	$neigh->load;
1480	}
1481	}	2365	}
1482		2366
1483	sub find_sync {	2367	sub find_sync {
1484	my ($path, $origin) = @_;	2368	my ($path, $origin) = @_;
1485		2369
1486	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, $origin
1487	}	2375	}
1488		2376
1489	sub do_load_sync {	2377	sub do_load_sync {
1490	my ($map) = @_;	2378	my ($map) = @_;
1491		2379
1492	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;
1493	}	2385	}
1494		2386
1495	our %MAP_PREFETCH;	2387	our %MAP_PREFETCH;
1496	our $MAP_PREFETCHER = undef;	2388	our $MAP_PREFETCHER = undef;
1497		2389
1498	sub find_async {	2390	sub find_async {
1499	my ($path, $origin) = @_;	2391	my ($path, $origin, $load) = @_;
1500		2392
1501	$path = normalise $path, $origin && $origin->{path};	2393	$path = normalise $path, $origin;
1502		2394
1503	if (my $map = $cf::MAP{$path}) {	2395	if (my $map = $cf::MAP{$path}) {
1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2396	return $map if !$load || $map->linkable;
1505	}	2397	}
1506		2398
1507	undef $MAP_PREFETCH{$path};	2399	$MAP_PREFETCH{$path} |= $load;
		2400
1508	$MAP_PREFETCHER ||= cf::async {	2401	$MAP_PREFETCHER ||= cf::async {
		2402	$Coro::current->{desc} = "map prefetcher";
		2403
1509	while (%MAP_PREFETCH) {	2404	while (%MAP_PREFETCH) {
1510	for my $path (keys %MAP_PREFETCH) {	2405	for my $k (keys %MAP_PREFETCH) {
1511	my $map = find $path	2406	if (my $map = find $k) {
1512	or next;	2407	$map->load if $MAP_PREFETCH{$k};
1513	$map->load;	2408	}
1514		2409
1515	delete $MAP_PREFETCH{$path};	2410	delete $MAP_PREFETCH{$k};
1516	}	2411	}
1517	}	2412	}
1518	undef $MAP_PREFETCHER;	2413	undef $MAP_PREFETCHER;
1519	};	2414	};
1520	$MAP_PREFETCHER->prio (6);	2415	$MAP_PREFETCHER->prio (6);
1521		2416
1522	()	2417	()
1523	}	2418	}
1524		2419
		2420	# common code, used by both ->save and ->swapout
1525	sub save {	2421	sub _save {
1526	my ($self) = @_;	2422	my ($self) = @_;
1527
1528	my $lock = cf::lock_acquire "map_data:" . $self->path;
1529		2423
1530	$self->{last_save} = $cf::RUNTIME;	2424	$self->{last_save} = $cf::RUNTIME;
1531		2425
1532	return unless $self->dirty;	2426	return unless $self->dirty;
1533		2427
…		…
1539	return if $self->{deny_save};	2433	return if $self->{deny_save};
1540		2434
1541	local $self->{last_access} = $self->last_access;#d#	2435	local $self->{last_access} = $self->last_access;#d#
1542		2436
1543	cf::async {	2437	cf::async {
		2438	$Coro::current->{desc} = "map player save";
1544	$_->contr->save for $self->players;	2439	$_->contr->save for $self->players;
1545	};	2440	};
		2441
		2442	cf::get_slot 0.02;
1546		2443
1547	if ($uniq) {	2444	if ($uniq) {
1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2445	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1549	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2446	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1550	} else {	2447	} else {
1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2448	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1552	}	2449	}
1553	}	2450	}
1554		2451
		2452	sub save {
		2453	my ($self) = @_;
		2454
		2455	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2456
		2457	$self->_save;
		2458	}
		2459
1555	sub swap_out {	2460	sub swap_out {
1556	my ($self) = @_;	2461	my ($self) = @_;
1557		2462
1558	# save first because save cedes
1559	$self->save;
1560
1561	my $lock = cf::lock_acquire "map_data:" . $self->path;	2463	my $lock = cf::lock_acquire "map_data:$self->{path}";
1562		2464
		2465	return if !$self->linkable;
		2466	return if $self->{deny_save};
1563	return if $self->players;	2467	return if $self->players;
1564	return if $self->in_memory != cf::MAP_IN_MEMORY;
1565	return if $self->{deny_save};
1566		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
1567	$self->clear;	2478	$self->clear;
1568	$self->in_memory (cf::MAP_SWAPPED);
1569	}	2479	}
1570		2480
1571	sub reset_at {	2481	sub reset_at {
1572	my ($self) = @_;	2482	my ($self) = @_;
1573		2483
1574	# TODO: safety, remove and allow resettable per-player maps	2484	# TODO: safety, remove and allow resettable per-player maps
1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
1576	return 1e99 if $self->{deny_reset};	2485	return 1e99 if $self->{deny_reset};
1577		2486
1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2487	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2488	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1580		2489
…		…
1591	my ($self) = @_;	2500	my ($self) = @_;
1592		2501
1593	my $lock = cf::lock_acquire "map_data:$self->{path}";	2502	my $lock = cf::lock_acquire "map_data:$self->{path}";
1594		2503
1595	return if $self->players;	2504	return if $self->players;
1596	return if $self->isa ("ext::map_per_player");#d#
1597		2505
1598	warn "resetting map ", $self->path;#d#	2506	cf::trace "resetting map ", $self->path, "\n";
1599		2507
1600	$self->in_memory (cf::MAP_SWAPPED);	2508	$self->state (cf::MAP_SWAPPED);
1601		2509
1602	# need to save uniques path	2510	# need to save uniques path
1603	unless ($self->{deny_save}) {	2511	unless ($self->{deny_save}) {
1604	my $uniq = $self->uniq_path; utf8::encode $uniq;	2512	my $uniq = $self->uniq_path; utf8::encode $uniq;
1605		2513
…		…
1607	if $uniq;	2515	if $uniq;
1608	}	2516	}
1609		2517
1610	delete $cf::MAP{$self->path};	2518	delete $cf::MAP{$self->path};
1611		2519
		2520	$self->deactivate;
		2521	$_->clear_links_to ($self) for values %cf::MAP;
1612	$self->clear;	2522	$self->clear;
1613
1614	$_->clear_links_to ($self) for values %cf::MAP;
1615		2523
1616	$self->unlink_save;	2524	$self->unlink_save;
1617	$self->destroy;	2525	$self->destroy;
1618	}	2526	}
1619		2527
1620	my $nuke_counter = "aaaa";	2528	my $nuke_counter = "aaaa";
1621		2529
1622	sub nuke {	2530	sub nuke {
1623	my ($self) = @_;	2531	my ($self) = @_;
1624		2532
		2533	{
		2534	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2535
1625	delete $cf::MAP{$self->path};	2536	delete $cf::MAP{$self->path};
1626		2537
1627	$self->unlink_save;	2538	$self->unlink_save;
1628		2539
1629	bless $self, "cf::map";	2540	bless $self, "cf::map::wrap";
1630	delete $self->{deny_reset};	2541	delete $self->{deny_reset};
1631	$self->{deny_save} = 1;	2542	$self->{deny_save} = 1;
1632	$self->reset_timeout (1);	2543	$self->reset_timeout (1);
1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2544	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1634		2545
1635	$cf::MAP{$self->path} = $self;	2546	$cf::MAP{$self->path} = $self;
		2547	}
1636		2548
1637	$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	]
1638	}	2586	}
1639		2587
1640	=item cf::map::unique_maps	2588	=item cf::map::unique_maps
1641		2589
1642	Returns an arrayref of paths of all shared maps that have	2590	Returns an arrayref of paths of all shared maps that have
1643	instantiated unique items. May block.	2591	instantiated unique items. May block.
1644		2592
1645	=cut	2593	=cut
1646		2594
1647	sub unique_maps() {	2595	sub unique_maps() {
1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2596	[
1649	or return;	2597	map {
1650
1651	my @paths;
1652
1653	for (@$files) {
1654	utf8::decode $_;	2598	utf8::decode $_;
1655	next if /\.pst$/;	2599	s/\.map$//; # TODO future compatibility hack
1656	next unless /^$PATH_SEP/o;	2600	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1657		2601	? ()
1658	push @paths, cf::map::normalise $_;	2602	: normalise $_
		2603	} @{ aio_readdir $UNIQUEDIR or [] }
1659	}	2604	]
1660
1661	\@paths
1662	}	2605	}
1663		2606
1664	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	}
1665		2638
1666	=back	2639	=back
1667		2640
1668	=head3 cf::object	2641	=head3 cf::object
1669		2642
…		…
1673		2646
1674	=over 4	2647	=over 4
1675		2648
1676	=item $ob->inv_recursive	2649	=item $ob->inv_recursive
1677		2650
1678	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.
1679		2653
1680	=cut	2654	=cut
1681		2655
1682	sub inv_recursive_;	2656	sub inv_recursive_;
1683	sub inv_recursive_ {	2657	sub inv_recursive_ {
…		…
1686		2660
1687	sub inv_recursive {	2661	sub inv_recursive {
1688	inv_recursive_ inv $_[0]	2662	inv_recursive_ inv $_[0]
1689	}	2663	}
1690		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
1691	package cf;	2693	package cf;
1692		2694
1693	=back	2695	=back
1694		2696
1695	=head3 cf::object::player	2697	=head3 cf::object::player
…		…
1701	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>
1702	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
1703	dialogue with the given NPC character.	2705	dialogue with the given NPC character.
1704		2706
1705	=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	};
1706		2722
1707	# rough implementation of a future "reply" method that works	2723	# rough implementation of a future "reply" method that works
1708	# with dialog boxes.	2724	# with dialog boxes.
1709	#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
1710	sub cf::object::player::reply($$$;$) {	2726	sub cf::object::player::reply($$$;$) {
…		…
1712		2728
1713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1714		2730
1715	if ($self->{record_replies}) {	2731	if ($self->{record_replies}) {
1716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2733
1717	} 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 {
1718	$msg = $npc->name . " says: $msg" if $npc;	2742	$msg = $npc->name . " says: $msg" if $npc;
1719	$self->message ($msg, $flags);	2743	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2744	}
1720	}	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 (@_);
1721	}	2756	}
1722		2757
1723	=item $player_object->may ("access")	2758	=item $player_object->may ("access")
1724		2759
1725	Returns wether the given player is authorized to access resource "access"	2760	Returns wether the given player is authorized to access resource "access"
1726	(e.g. "command_wizcast").	2761	(e.g. "command_wizcast").
1727		2762
		2763	This is implemented by checking a config setting of C<may_access> where
		2764	C<access> is replaced by the access string. The following alternatives are
		2765	possible (and are tested in order):
		2766
		2767	=over 4
		2768
		2769	=item * Player is DM
		2770
		2771	The request will succeed.
		2772
		2773	=item * may_access is an array reference
		2774
		2775	If either the player nickname or UUID is in the array, the request will
		2776	succeed, otherwise it will fail.
		2777
		2778	=item * may_access is a true value
		2779
		2780	The request will succeed.
		2781
		2782	=item * may_access is missing or false
		2783
		2784	The request will fail.
		2785
		2786	=back
		2787
1728	=cut	2788	=cut
1729		2789
1730	sub cf::object::player::may {	2790	sub cf::object::player::may {
1731	my ($self, $access) = @_;	2791	my ($self, $access) = @_;
1732		2792
1733	$self->flag (cf::FLAG_WIZ) ||	2793	$self->flag (cf::FLAG_WIZ) ||
1734	(ref $cf::CFG{"may_$access"}	2794	(ref $cf::CFG{"may_$access"}
1735	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2795	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1736	: $cf::CFG{"may_$access"})	2796	: $cf::CFG{"may_$access"})
1737	}	2797	}
1738		2798
1739	=item $player_object->enter_link	2799	=item $player_object->enter_link
1740		2800
1741	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}>).
1742		2802
1743	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.
1744	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.
1745		2807
1746	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.
1747		2815
1748	=item $player_object->leave_link ($map, $x, $y)	2816	=item $player_object->leave_link ($map, $x, $y)
1749		2817
1750	Moves the player out of the special C<{link}> map onto the specified	2818	Moves the player out of the special C<{link}> map onto the specified
1751	map. If the map is not valid (or omitted), the player will be moved back	2819	map. If the map is not valid (or omitted), the player will be moved back
…		…
1769	sub cf::object::player::enter_link {	2837	sub cf::object::player::enter_link {
1770	my ($self) = @_;	2838	my ($self) = @_;
1771		2839
1772	$self->deactivate_recursive;	2840	$self->deactivate_recursive;
1773		2841
		2842	++$self->{_link_recursion};
		2843
1774	return if UNIVERSAL::isa $self->map, "ext::map_link";	2844	return if UNIVERSAL::isa $self->map, "ext::map_link";
1775		2845
1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2846	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1777	if $self->map;	2847	if $self->map && $self->map->{path} ne "{link}";
1778		2848
1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2849	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1780	}	2850	}
1781		2851
1782	sub cf::object::player::leave_link {	2852	sub cf::object::player::leave_link {
1783	my ($self, $map, $x, $y) = @_;	2853	my ($self, $map, $x, $y) = @_;
		2854
		2855	return unless $self->contr->active;
1784		2856
1785	my $link_pos = delete $self->{_link_pos};	2857	my $link_pos = delete $self->{_link_pos};
1786		2858
1787	unless ($map) {	2859	unless ($map) {
1788	# restore original map position	2860	# restore original map position
…		…
1799	($x, $y) = (-1, -1)	2871	($x, $y) = (-1, -1)
1800	unless (defined $x) && (defined $y);	2872	unless (defined $x) && (defined $y);
1801		2873
1802	# use -1 or undef as default coordinates, not 0, 0	2874	# use -1 or undef as default coordinates, not 0, 0
1803	($x, $y) = ($map->enter_x, $map->enter_y)	2875	($x, $y) = ($map->enter_x, $map->enter_y)
1804	if $x <=0 && $y <= 0;	2876	if $x <= 0 && $y <= 0;
1805		2877
1806	$map->load;	2878	$map->load;
1807	$map->load_diag;
1808		2879
1809	return unless $self->contr->active;	2880	return unless $self->contr->active;
1810	$self->activate_recursive;
1811		2881
1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2882	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2883	if ($self->enter_map ($map, $x, $y)) {
1814	}	2884	# entering was successful
1815		2885	delete $self->{_link_recursion};
1816	cf::player->attach (	2886	# only activate afterwards, to support waiting in hooks
1817	on_logout => sub {	2887	$self->activate_recursive;
1818	my ($pl) = @_;
1819
1820	# abort map switching before logout
1821	if ($pl->ob->{_link_pos}) {
1822	cf::sync_job {
1823	$pl->ob->leave_link
1824	};
1825	}
1826	},	2888	}
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2889
1830	# try to abort aborted map switching on player login :)	2890	}
1831	# should happen only on crashes
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	$pl->ob->reply (undef,
1836	"There was an internal problem at your last logout, "
1837	. "the server will try to bring you to your intended destination in a second.",
1838	cf::NDI_RED);
1839	# we need this sleep as the login has a concurrent enter_exit running
1840	# and this sleep increases chances of the player not ending up in scorn
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2891
1848	=item $player_object->goto ($path, $x, $y)	2892	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1849		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
1850	=cut	2903	=cut
		2904
		2905	our $GOTOGEN;
1851		2906
1852	sub cf::object::player::goto {	2907	sub cf::object::player::goto {
1853	my ($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;
1854		2918
1855	$self->enter_link;	2919	$self->enter_link;
1856		2920
1857	(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
1858	my $map = eval {	2943	my $map = eval {
1859	my $map = cf::map::find $path;	2944	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2945
		2946	if ($map) {
1860	$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
1861	$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 $@;
1862	} or	2959	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2960
		2961	if ($gen == $self->{_goto_generation}) {
		2962	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2963	$self->leave_link ($map, $x, $y);
		2964	}
		2965
		2966	$done->($self) if $done;
1866	})->prio (1);	2967	})->prio (1);
1867	}	2968	}
1868		2969
1869	=item $player_object->enter_exit ($exit_object)	2970	=item $player_object->enter_exit ($exit_object)
1870		2971
…		…
1890	}	2991	}
1891		2992
1892	sub prepare_random_map {	2993	sub prepare_random_map {
1893	my ($exit) = @_;	2994	my ($exit) = @_;
1894		2995
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2996	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2997	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2998	# that depends on the exit object
1900		2999
1901	my $rmp = parse_random_map_params $exit->msg;	3000	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	3002	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	3003	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	3004	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	3005	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	3006	$rmp->{origin_y} = $exit->y;
		3007
		3008	$exit->map->touch;
1908	}	3009	}
1909		3010
1910	$rmp->{random_seed} ||= $exit->random_seed;	3011	$rmp->{random_seed} ||= $exit->random_seed;
1911		3012
1912	my $data = cf::to_json $rmp;	3013	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	3014	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	3015	my $meta = "$RANDOMDIR/$md5.meta";
1915		3016
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	3017	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	3018	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	3019	undef $fh;
1919	aio_rename "$meta~", $meta;	3020	aio_rename "$meta~", $meta;
1920		3021
		3022	my $slaying = "?random/$md5";
		3023
		3024	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	3025	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	3026	$exit->msg (undef);
		3027	}
1923	}	3028	}
1924	}	3029	}
1925		3030
1926	sub cf::object::player::enter_exit {	3031	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	3032	my ($self, $exit) = @_;
1928		3033
1929	return unless $self->type == cf::PLAYER;	3034	return unless $self->type == cf::PLAYER;
1930		3035
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	3036	$self->enter_link;
1941		3037
1942	(async {	3038	(async {
1943	$self->deactivate_recursive; # just to be sure	3039	$Coro::current->{desc} = "enter_exit";
		3040
1944	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
1945	$self->goto ($slaying, $hp, $sp);	3071	$self->goto ($map, $x, $y);
1946		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
1947	1;	3077	1
1948	}) {	3078	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	3079	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "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. "
1951	. "Please report this to the dungeon master!",	3081	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	3082	cf::NDI_UNIQUE | cf::NDI_RED);
1953		3083
1954	warn "ERROR in enter_exit: $@";	3084	error "ERROR in enter_exit: $@";
1955	$self->leave_link;	3085	$self->leave_link;
1956	}	3086	}
1957	})->prio (1);	3087	})->prio (1);
1958	}	3088	}
1959		3089
1960	=head3 cf::client	3090	=head3 cf::client
1961		3091
1962	=over 4	3092	=over 4
1963		3093
1964	=item $client->send_drawinfo ($text, $flags)	3094	=item $client->send_big_packet ($pkt)
1965		3095
1966	Sends a drawinfo packet to the client. Circumvents output buffering so	3096	Like C<send_packet>, but tries to compress large packets, and fragments
1967	should not be used under normal circumstances.	3097	them as required.
1968		3098
1969	=cut	3099	=cut
1970		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" => $CHAT_CHANNEL,
		3246	);
		3247
1971	sub cf::client::send_drawinfo {	3248	sub cf::client::send_msg {
		3249	my ($self, $channel, $msg, $color, @extra) = @_;
		3250
		3251	$msg = $self->pl->expand_cfpod ($msg)
		3252	unless $color & cf::NDI_VERBATIM;
		3253
		3254	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3255
		3256	# check predefined channels, for the benefit of C
		3257	if ($CHANNEL{$channel}) {
		3258	$channel = $CHANNEL{$channel};
		3259
		3260	$self->ext_msg (channel_info => $channel);
		3261	$channel = $channel->{id};
		3262
		3263	} elsif (ref $channel) {
		3264	# send meta info to client, if not yet sent
		3265	unless (exists $self->{channel}{$channel->{id}}) {
		3266	$self->{channel}{$channel->{id}} = $channel;
		3267	$self->ext_msg (channel_info => $channel);
		3268	}
		3269
		3270	$channel = $channel->{id};
		3271	}
		3272
		3273	return unless @extra || length $msg;
		3274
		3275	# default colour, mask it out
		3276	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3277	if $color & cf::NDI_DEF;
		3278
		3279	my $pkt = "msg "
		3280	. $self->{json_coder}->encode (
		3281	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3282	);
		3283
		3284	$self->send_big_packet ($pkt);
		3285	}
		3286
		3287	=item $client->ext_msg ($type, @msg)
		3288
		3289	Sends an ext event to the client.
		3290
		3291	=cut
		3292
		3293	sub cf::client::ext_msg($$@) {
1972	my ($self, $text, $flags) = @_;	3294	my ($self, $type, @msg) = @_;
1973		3295
1974	utf8::encode $text;	3296	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1976	}	3297	}
1977
1978		3298
1979	=item $success = $client->query ($flags, "text", \&cb)	3299	=item $success = $client->query ($flags, "text", \&cb)
1980		3300
1981	Queues a query to the client, calling the given callback with	3301	Queues a query to the client, calling the given callback with
1982	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>,
1983	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>.
1984		3304
1985	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
1986	reliable at some point in the future.	3306	become reliable at some point in the future.
1987		3307
1988	=cut	3308	=cut
1989		3309
1990	sub cf::client::query {	3310	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	3311	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	3319	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3320	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		3321
2002	$self->send_packet ($self->{query_queue}[0][0])	3322	$self->send_packet ($self->{query_queue}[0][0])
2003	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;
2004	}	3365	}
2005		3366
2006	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	},
2007	on_reply => sub {	3373	on_reply => sub {
2008	my ($ns, $msg) = @_;	3374	my ($ns, $msg) = @_;
2009		3375
2010	# this weird shuffling is so that direct followup queries	3376	# this weird shuffling is so that direct followup queries
2011	# get handled first	3377	# get handled first
…		…
2023	} else {	3389	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3390	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3391	}
2026	}	3392	}
2027	},	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	},
2028	);	3427	);
2029		3428
2030	=item $client->async (\&cb)	3429	=item $client->async (\&cb)
2031		3430
2032	Create a new coroutine, running the specified callback. The coroutine will	3431	Create a new coroutine, running the specified callback. The coroutine will
…		…
2048		3447
2049	$coro	3448	$coro
2050	}	3449	}
2051		3450
2052	cf::client->attach (	3451	cf::client->attach (
2053	on_destroy => sub {	3452	on_client_destroy => sub {
2054	my ($ns) = @_;	3453	my ($ns) = @_;
2055		3454
2056	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3455	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2057	},	3456	},
2058	);	3457	);
…		…
2073	our $safe = new Safe "safe";	3472	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3473	our $safe_hole = new Safe::Hole;
2075		3474
2076	$SIG{FPE} = 'IGNORE';	3475	$SIG{FPE} = 'IGNORE';
2077		3476
2078	$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	));
2079		3482
2080	# here we export the classes and methods available to script code	3483	# here we export the classes and methods available to script code
2081		3484
2082	=pod	3485	=pod
2083		3486
2084	The following fucntions and emthods are available within a safe environment:	3487	The following functions and methods are available within a safe environment:
2085		3488
2086	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
2087	cf::object::player player	3494	cf::object::player
2088	cf::player peaceful	3495	player
2089	cf::map trigger	3496
		3497	cf::player
		3498	peaceful
		3499
		3500	cf::map
		3501	trigger
2090		3502
2091	=cut	3503	=cut
2092		3504
2093	for (	3505	for (
2094	["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)],
2095	["cf::object::player" => qw(player)],	3509	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3510	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3511	["cf::map" => qw(trigger)],
2098	) {	3512	) {
2099	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3513	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3514	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2102	for @funs;	3515	for @funs;
2103	}	3516	}
2104		3517
…		…
2119		3532
2120	my $qcode = $code;	3533	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3534	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3535	$qcode =~ s/\n/\\n/g;
2123		3536
		3537	%vars = (_dummy => 0) unless %vars;
		3538
		3539	my @res;
2124	local $_;	3540	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;
2126		3541
2127	my $eval =	3542	my $eval =
2128	"do {\n"	3543	"do {\n"
2129	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3544	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2130	. "#line 0 \"{$qcode}\"\n"	3545	. "#line 0 \"{$qcode}\"\n"
2131	. $code	3546	. $code
2132	. "\n}"	3547	. "\n}"
2133	;	3548	;
2134		3549
		3550	if ($CFG{safe_eval}) {
2135	sub_generation_inc;	3551	sub_generation_inc;
		3552	local @safe::cf::_safe_eval_args = values %vars;
2136	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3553	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2137	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	}
2138		3559
2139	if ($@) {	3560	if ($@) {
2140	warn "$@";	3561	warn "$@",
2141	warn "while executing safe code '$code'\n";	3562	"while executing safe code '$code'\n",
2142	warn "with arguments " . (join " ", %vars) . "\n";	3563	"with arguments " . (join " ", %vars) . "\n";
2143	}	3564	}
2144		3565
2145	wantarray ? @res : $res[0]	3566	wantarray ? @res : $res[0]
2146	}	3567	}
2147		3568
…		…
2161	=cut	3582	=cut
2162		3583
2163	sub register_script_function {	3584	sub register_script_function {
2164	my ($fun, $cb) = @_;	3585	my ($fun, $cb) = @_;
2165		3586
2166	no strict 'refs';	3587	$fun = "safe::$fun" if $CFG{safe_eval};
2167	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3588	*$fun = $safe_hole->wrap ($cb);
2168	}	3589	}
2169		3590
2170	=back	3591	=back
2171		3592
2172	=cut	3593	=cut
2173
2174	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database.
2190
2191	=item cf::db_put $family => $key => $value
2192
2193	Stores the given C<$value> in the family.
2194
2195	=cut
2196
2197	our $DB;
2198
2199	sub db_init {
2200	unless ($DB) {
2201	$DB = BDB::db_create $DB_ENV;
2202
2203	cf::sync_job {
2204	eval {
2205	$DB->set_flags (BDB::CHKSUM);
2206
2207	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2208	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2209	cf::cleanup "db_open(db): $!" if $!;
2210	};
2211	cf::cleanup "db_open(db): $@" if $@;
2212	};
2213
2214	my $path = cf::localdir . "/database.pst";
2215	if (stat $path) {
2216	cf::sync_job {
2217	my $pst = Storable::retrieve $path;
2218
2219	cf::db_put (board => data => $pst->{board});
2220	cf::db_put (guildrules => data => $pst->{guildrules});
2221	cf::db_put (rent => balance => $pst->{rent}{balance});
2222	BDB::db_env_txn_checkpoint $DB_ENV;
2223
2224	unlink $path;
2225	};
2226	}
2227	}
2228	}
2229
2230	sub db_get($$) {
2231	my $key = "$_[0]/$_[1]";
2232
2233	cf::sync_job {
2234	BDB::db_get $DB, undef, $key, my $data;
2235
2236	$! ? ()
2237	: Compress::LZF::sthaw $data
2238	}
2239	}
2240
2241	sub db_put($$$) {
2242	BDB::dbreq_pri 4;
2243	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2244	}
2245		3594
2246	#############################################################################	3595	#############################################################################
2247	# the server's init and main functions	3596	# the server's init and main functions
2248		3597
2249	sub init_resources {	3598	{
2250	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3599	package cf::face;
		3600
		3601	our %HASH; # hash => idx
		3602	our @DATA; # dynamically-created facedata, only faceste 0 used
		3603	our @FOFS; # file offset, if > 0
		3604	our @SIZE; # size of face, in octets
		3605	our @META; # meta hash of face, if any
		3606	our $DATAFH; # facedata filehandle
		3607
		3608	# internal api, not finalised
		3609	sub set {
		3610	my ($name, $type, $data) = @_;
		3611
		3612	my $idx = cf::face::find $name;
		3613
		3614	if ($idx) {
		3615	delete $HASH{cf::face::get_csum $idx};
		3616	} else {
		3617	$idx = cf::face::alloc $name;
		3618	}
		3619
		3620	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3621
		3622	cf::face::set_type $idx, $type;
		3623	cf::face::set_csum $idx, 0, $hash;
		3624
		3625	# we need to destroy the SV itself, not just modify it, as a running ix
		3626	# might hold a reference to it: "delete" achieves that.
		3627	delete $FOFS[0][$idx];
		3628	delete $DATA[0][$idx];
		3629	$DATA[0][$idx] = $data;
		3630	$SIZE[0][$idx] = length $data;
		3631	delete $META[$idx];
		3632	$HASH{$hash} = $idx;#d#
		3633
		3634	$idx
		3635	}
		3636
		3637	sub _get_data($$$) {
		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, $_[0]);
		3671	};
		3672	}
		3673	}
		3674
		3675	sub load_facedata($) {
		3676	my ($path) = @_;
		3677
		3678	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3679
		3680	trace "loading facedata from $path\n";
		3681
		3682	my $facedata = decode_storable load_file "$path/faceinfo";
		3683
		3684	$facedata->{version} == 2
		3685	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3686
		3687	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3688	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3689
		3690	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3691
		3692	# BEGIN ATOMIC
		3693	# from here on, everything must be atomic - no thread switch allowed
		3694	my $t1 = EV::time;
		3695
		3696	{
		3697	my $faces = $facedata->{faceinfo};
		3698
		3699	for my $face (sort keys %$faces) {
		3700	my $info = $faces->{$face};
		3701	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3702
		3703	cf::face::set_visibility $idx, $info->{visibility};
		3704	cf::face::set_magicmap $idx, $info->{magicmap};
		3705	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3706	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3707	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3708	$cf::face::HASH{$info->{hash64}} = $idx;
		3709	delete $cf::face::META[$idx];
		3710	}
		3711
		3712	while (my ($face, $info) = each %$faces) {
		3713	next unless $info->{smooth};
		3714
		3715	my $idx = cf::face::find $face
		3716	or next;
		3717
		3718	if (my $smooth = cf::face::find $info->{smooth}) {
		3719	cf::face::set_smooth $idx, $smooth;
		3720	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3721	} else {
		3722	error "smooth face '$info->{smooth}' not found for face '$face'";
		3723	}
		3724	}
		3725	}
		3726
		3727	{
		3728	my $anims = $facedata->{animinfo};
		3729
		3730	while (my ($anim, $info) = each %$anims) {
		3731	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3732	}
		3733
		3734	cf::anim::invalidate_all; # d'oh
		3735	}
		3736
		3737	{
		3738	my $res = $facedata->{resource};
		3739
		3740	while (my ($name, $info) = each %$res) {
		3741	if (defined (my $type = $info->{type})) {
		3742	# TODO: different hash - must free and use new index, or cache ixface data queue
		3743	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3744
		3745	cf::face::set_type $idx, $type;
		3746	cf::face::set_csum $idx, 0, $info->{hash};
		3747	$cf::face::SIZE[0][$idx] = $info->{size};
		3748	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3749	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3750	$cf::face::HASH{$info->{hash}} = $idx;
		3751	} else {
		3752	# $RESOURCE{$name} = $info; # unused
		3753	}
		3754	}
		3755	}
		3756
		3757	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3758
		3759	# HACK to clear player env face cache, we need some signal framework
		3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
		3762
		3763	# END ATOMIC
		3764
		3765	cf::debug "facedata atomic update time ", EV::time - $t1;
		3766
		3767	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3768
		3769	aio_close $fh if $fh; # close old facedata
		3770
		3771	1
		3772	}
		3773
		3774	register_exticmd fx_want => sub {
		3775	my ($ns, $want) = @_;
		3776
		3777	while (my ($k, $v) = each %$want) {
		3778	$ns->fx_want ($k, $v);
		3779	}
		3780	};
		3781
		3782	sub load_resource_file($) {
		3783	my $guard = lock_acquire "load_resource_file";
		3784
		3785	my $status = load_resource_file_ $_[0];
		3786	get_slot 0.1, 100;
		3787	cf::arch::commit_load;
		3788
		3789	$status
		3790	}
		3791
		3792	sub reload_exp_table {
		3793	_reload_exp_table;
		3794
		3795	cf::face::set
		3796	"res/exp_table" => FT_RSRC,
		3797	JSON::XS->new->utf8->canonical->encode (
		3798	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3799	);
		3800	}
		3801
		3802	sub reload_materials {
		3803	_reload_materials;
		3804	}
		3805
		3806	sub reload_regions {
		3807	# HACK to clear player env face cache, we need some signal framework
		3808	# for this (global event?)
		3809	%ext::player_env::MUSIC_FACE_CACHE = ();
		3810
		3811	load_resource_file "$MAPDIR/regions"
2251	or die "unable to load regions file\n";#d#	3812	or die "unable to load regions file\n";
2252	}
2253		3813
2254	sub cfg_load {	3814	for (cf::region::list) {
2255	open my $fh, "<:utf8", cf::confdir . "/config"	3815	$_->{match} = qr/$_->{match}/
2256	or return;	3816	if exists $_->{match};
		3817	}
		3818	}
2257		3819
2258	local $/;	3820	sub reload_facedata {
2259	*CFG = YAML::Syck::Load <$fh>;	3821	load_facedata $DATADIR
		3822	or die "unable to load facedata\n";
		3823	}
2260		3824
		3825	sub reload_archetypes {
		3826	load_resource_file "$DATADIR/archetypes"
		3827	or die "unable to load archetypes\n";
		3828
		3829	cf::face::set
		3830	"res/skill_info" => FT_RSRC,
		3831	JSON::XS->new->utf8->canonical->encode (
		3832	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3833	);
		3834
		3835	cf::face::set
		3836	"res/spell_paths" => FT_RSRC,
		3837	JSON::XS->new->utf8->canonical->encode (
		3838	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3839	);
		3840
		3841	# command completion
		3842	my @commands;
		3843
		3844	for (0..cf::arch::skillvec_size - 1) {
		3845	my $skill = cf::arch::skillvec $_;
		3846	my $name = $skill->name;
		3847	my $flags = cf::skill_flags $skill->subtype;
		3848
		3849	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3850	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3851	}
		3852
		3853	cf::client::set_command_face skill => \@commands;
		3854	}
		3855
		3856	sub reload_treasures {
		3857	load_resource_file "$DATADIR/treasures"
		3858	or die "unable to load treasurelists\n";
		3859	}
		3860
		3861	sub reload_sound {
		3862	trace "loading sound config from $DATADIR/sound\n";
		3863
		3864	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3865
		3866	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3867	my $sound = $soundconf->{compat}[$_]
		3868	or next;
		3869
		3870	my $face = cf::face::find "sound/$sound->[1]";
		3871	cf::sound::set $sound->[0] => $face;
		3872	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3873	}
		3874
		3875	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3876	my $face = cf::face::find "sound/$v";
		3877	cf::sound::set $k => $face;
		3878	}
		3879	}
		3880
		3881	sub reload_resources {
		3882	trace "reloading resource files...\n";
		3883
		3884	reload_materials;
		3885	reload_facedata;
		3886	reload_exp_table;
		3887	reload_sound;
		3888	reload_archetypes;
		3889	reload_regions;
		3890	reload_treasures;
		3891
		3892	trace "finished reloading resource files\n";
		3893	}
		3894
		3895	sub reload_config {
		3896	trace "reloading config file...\n";
		3897
		3898	my $config = load_file "$CONFDIR/config";
		3899	utf8::decode $config;
		3900	*CFG = decode_yaml $config;
		3901
2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3902	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2262		3903
2263	$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};
2264	$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};
2265		3906
2266	if (exists $CFG{mlockall}) {	3907	if (exists $CFG{mlockall}) {
…		…
2270	};	3911	};
2271	warn $@ if $@;	3912	warn $@ if $@;
2272	}	3913	}
2273	}	3914	}
2274		3915
2275	sub init {	3916	sub pidfile() {
2276	init_resources;	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;
2277	}	3942	}
2278		3943
2279	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
2280	# we must not ever block the main coroutine	3955	# we must not ever block the main coroutine
2281	local $Coro::idle = sub {	3956	$Coro::idle = sub {
2282	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#
2283	(async {	3958	(async {
2284	Event::one_event;	3959	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3960	EV::run EV::RUN_ONCE;
2285	})->prio (Coro::PRIO_MAX);	3961	})->prio (Coro::PRIO_MAX);
2286	};	3962	};
2287		3963
2288	cfg_load;	3964	evthread_start IO::AIO::poll_fileno;
		3965
		3966	cf::sync_job {
		3967	cf::incloader::init ();
		3968
2289	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
2290	load_extensions;	3988	load_extensions;
2291		3989
2292	$TICK_WATCHER->start;	3990	utime time, time, $RUNTIMEFILE;
2293	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;
2294	}	4007	}
2295		4008
2296	#############################################################################	4009	#############################################################################
2297	# initialisation and cleanup	4010	# initialisation and cleanup
2298		4011
2299	# install some emergency cleanup handlers	4012	# install some emergency cleanup handlers
2300	BEGIN {	4013	BEGIN {
		4014	our %SIGWATCHER = ();
2301	for my $signal (qw(INT HUP TERM)) {	4015	for my $signal (qw(INT HUP TERM)) {
2302	Event->signal (	4016	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2303	reentrant => 0,
2304	data => WF_AUTOCANCEL,
2305	signal => $signal,
2306	prio => 0,
2307	cb => sub {
2308	cf::cleanup "SIG$signal";	4017	cf::cleanup "SIG$signal";
2309	},
2310	);	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
2311	}	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 };
2312	}	4108	}
2313		4109
2314	sub emergency_save() {	4110	sub emergency_save() {
2315	my $freeze_guard = cf::freeze_mainloop;	4111	my $freeze_guard = cf::freeze_mainloop;
2316		4112
2317	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;
2318		4119
2319	cf::sync_job {	4120	cf::sync_job {
		4121	cf::write_runtime_sync; # external watchdog should not bark
		4122
2320	# use a peculiar iteration method to avoid tripping on perl	4123	# use a peculiar iteration method to avoid tripping on perl
2321	# refcount bugs in for. also avoids problems with players	4124	# refcount bugs in for. also avoids problems with players
2322	# and maps saved/destroyed asynchronously.	4125	# and maps saved/destroyed asynchronously.
2323	warn "begin emergency player save\n";	4126	info "emergency_perl_save: begin player save\n";
2324	for my $login (keys %cf::PLAYER) {	4127	for my $login (keys %cf::PLAYER) {
2325	my $pl = $cf::PLAYER{$login} or next;	4128	my $pl = $cf::PLAYER{$login} or next;
2326	$pl->valid or next;	4129	$pl->valid or next;
		4130	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2327	$pl->save;	4131	$pl->save;
2328	}	4132	}
2329	warn "end emergency player save\n";	4133	info "emergency_perl_save: end player save\n";
2330		4134
2331	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";
2332	for my $path (keys %cf::MAP) {	4138	for my $path (keys %cf::MAP) {
2333	my $map = $cf::MAP{$path} or next;	4139	my $map = $cf::MAP{$path} or next;
2334	$map->valid or next;	4140	$map->valid or next;
2335	$map->save;	4141	$map->save;
2336	}	4142	}
2337	warn "end emergency map save\n";	4143	info "emergency_perl_save: end map save\n";
2338		4144
2339	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";
2340	BDB::db_env_txn_checkpoint $DB_ENV;	4148	BDB::db_env_txn_checkpoint $DB_ENV;
2341	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 $DB_ENV;
		4159
		4160	info "emergency_perl_save: starting sync\n";
		4161	IO::AIO::aio_sync sub {
		4162	info "emergency_perl_save: finished sync\n";
		4163	};
		4164
		4165	cf::write_runtime_sync; # external watchdog should not bark
		4166
		4167	trace "emergency_perl_save: flushing outstanding aio requests";
		4168	while (IO::AIO::nreqs || BDB::nreqs) {
		4169	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4170	}
		4171
		4172	cf::write_runtime_sync; # external watchdog should not bark
2342	};	4173	};
2343		4174
2344	warn "leave emergency perl save\n";	4175	info "emergency_perl_save: leave\n";
2345	}	4176	}
2346		4177
2347	sub post_cleanup {	4178	sub post_cleanup {
2348	my ($make_core) = @_;	4179	my ($make_core) = @_;
2349		4180
		4181	IO::AIO::flush;
		4182
2350	warn Carp::longmess "post_cleanup backtrace"	4183	error Carp::longmess "post_cleanup backtrace"
2351	if $make_core;	4184	if $make_core;
2352	}
2353		4185
		4186	my $fh = pidfile;
		4187	unlink $PIDFILE if <$fh> == $$;
		4188	}
		4189
		4190	# a safer delete_package, copied from Symbol
		4191	sub clear_package($) {
		4192	my $pkg = shift;
		4193
		4194	# expand to full symbol table name if needed
		4195	unless ($pkg =~ /^main::.*::$/) {
		4196	$pkg = "main$pkg" if $pkg =~ /^::/;
		4197	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4198	$pkg .= '::' unless $pkg =~ /::$/;
		4199	}
		4200
		4201	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4202	my $stem_symtab = *{$stem}{HASH};
		4203
		4204	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4205	or return;
		4206
		4207	# clear all symbols
		4208	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4209	for my $name (keys %$leaf_symtab) {
		4210	_gv_clear *{"$pkg$name"};
		4211	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4212	}
		4213	}
		4214
2354	sub reload() {	4215	sub do_reload_perl() {
2355	# can/must only be called in main	4216	# can/must only be called in main
2356	if ($Coro::current != $Coro::main) {	4217	unless (in_main) {
2357	warn "can only reload from main coroutine";	4218	error "can only reload from main coroutine";
2358	return;	4219	return;
2359	}	4220	}
2360		4221
2361	warn "reloading...";	4222	return if $RELOAD++;
2362		4223
2363	warn "entering sync_job";	4224	my $t1 = AE::time;
2364		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
2365	cf::sync_job {	4232	cf::sync_job {
2366	cf::write_runtime; # external watchdog should not bark
2367	cf::emergency_save;	4233	#cf::emergency_save;
2368	cf::write_runtime; # external watchdog should not bark
2369		4234
2370	warn "syncing database to disk";
2371	BDB::db_env_txn_checkpoint $DB_ENV;
2372
2373	# if anything goes wrong in here, we should simply crash as we already saved
2374
2375	warn "cancelling all WF_AUTOCANCEL watchers";
2376	for (Event::all_watchers) {
2377	$_->cancel if $_->data & WF_AUTOCANCEL;
2378	}
2379
2380	warn "flushing outstanding aio requests";
2381	for (;;) {
2382	BDB::flush;
2383	IO::AIO::flush;
2384	Coro::cede;
2385	last unless IO::AIO::nreqs || BDB::nreqs;
2386	warn "iterate...";
2387	}
2388
2389	warn "cancelling all extension coros";	4235	trace "perl_reload: cancelling all extension coros";
2390	$_->cancel for values %EXT_CORO;	4236	$_->cancel for values %EXT_CORO;
2391	%EXT_CORO = ();	4237	%EXT_CORO = ();
2392		4238
2393	warn "removing commands";	4239	trace "perl_reload: removing commands";
2394	%COMMAND = ();	4240	%COMMAND = ();
2395		4241
2396	warn "removing ext commands";	4242	trace "perl_reload: removing ext/exti commands";
2397	%EXTCMD = ();	4243	%EXTCMD = ();
		4244	%EXTICMD = ();
2398		4245
2399	warn "unloading/nuking all extensions";	4246	trace "perl_reload: unloading/nuking all extensions";
2400	for my $pkg (@EXTS) {	4247	for my $pkg (@EXTS) {
2401	warn "... unloading $pkg";	4248	trace "... unloading $pkg";
2402		4249
2403	if (my $cb = $pkg->can ("unload")) {	4250	if (my $cb = $pkg->can ("unload")) {
2404	eval {	4251	eval {
2405	$cb->($pkg);	4252	$cb->($pkg);
2406	1	4253	1
2407	} 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;
2408	}	4259	}
2409		4260
2410	warn "... nuking $pkg";
2411	Symbol::delete_package $pkg;
2412	}
2413
2414	warn "unloading all perl modules loaded from $LIBDIR";	4261	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2415	while (my ($k, $v) = each %INC) {	4262	while (my ($k, $v) = each %INC) {
2416	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2417		4264
2418	warn "... unloading $k";	4265	trace "... unloading $k";
2419	delete $INC{$k};	4266	delete $INC{$k};
2420		4267
2421	$k =~ s/\.pm$//;	4268	$k =~ s/\.pm$//;
2422	$k =~ s/\//::/g;	4269	$k =~ s/\//::/g;
2423		4270
2424	if (my $cb = $k->can ("unload_module")) {	4271	if (my $cb = $k->can ("unload_module")) {
2425	$cb->();	4272	$cb->();
		4273	}
		4274
		4275	clear_package $k;
2426	}	4276	}
2427		4277
2428	Symbol::delete_package $k;
2429	}
2430
2431	warn "getting rid of safe::, as good as possible";	4278	trace "perl_reload: getting rid of safe::, as good as possible";
2432	Symbol::delete_package "safe::$_"	4279	clear_package "safe::$_"
2433	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);
2434		4281
2435	warn "unloading cf.pm \"a bit\"";	4282	trace "perl_reload: unloading cf.pm \"a bit\"";
2436	delete $INC{"cf.pm"};	4283	delete $INC{"cf.pm"};
		4284	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2437		4285
2438	# don't, removes xs symbols, too,	4286	# don't, removes xs symbols, too,
2439	# and global variables created in xs	4287	# and global variables created in xs
2440	#Symbol::delete_package __PACKAGE__;	4288	#clear_package __PACKAGE__;
2441		4289
2442	warn "unload completed, starting to reload now";	4290	info "perl_reload: unload completed, starting to reload now";
2443		4291
2444	warn "reloading cf.pm";	4292	trace "perl_reload: reloading cf.pm";
2445	require cf;	4293	require cf;
2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4294	cf::_connect_to_perl_1;
2447		4295
2448	warn "loading config and database again";	4296	trace "perl_reload: loading config and database again";
2449	cf::cfg_load;	4297	cf::reload_config;
2450		4298
2451	warn "loading extensions";	4299	trace "perl_reload: loading extensions";
2452	cf::load_extensions;	4300	cf::load_extensions;
2453		4301
		4302	if ($REATTACH_ON_RELOAD) {
2454	warn "reattaching attachments to objects/players";	4303	trace "perl_reload: reattaching attachments to objects/players";
2455	_global_reattach;	4304	_global_reattach; # objects, sockets
2456	warn "reattaching attachments to maps";	4305	trace "perl_reload: reattaching attachments to maps";
2457	reattach $_ for values %MAP;	4306	reattach $_ for values %MAP;
		4307	trace "perl_reload: reattaching attachments to players";
		4308	reattach $_ for values %PLAYER;
		4309	}
2458		4310
2459	warn "loading reloadable resources";	4311	cf::_post_init 1;
2460	init_resources;
2461		4312
2462	warn "leaving sync_job";	4313	trace "perl_reload: leaving sync_job";
2463		4314
2464	1	4315	1
2465	} or do {	4316	} or do {
2466	warn $@;	4317	error $@;
2467	warn "error while reloading, exiting.";	4318	cf::cleanup "perl_reload: error, exiting.";
2468	exit 1;	4319	};
		4320
		4321	--$RELOAD;
		4322	}
		4323
		4324	$t1 = AE::time - $t1;
		4325	info "perl_reload: completed in ${t1}s\n";
		4326	};
		4327
		4328	our $RELOAD_WATCHER; # used only during reload
		4329
		4330	sub reload_perl() {
		4331	# doing reload synchronously and two reloads happen back-to-back,
		4332	# coro crashes during coro_state_free->destroy here.
		4333
		4334	$RELOAD_WATCHER ||= cf::async {
		4335	Coro::AIO::aio_wait cache_extensions;
		4336
		4337	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4338	do_reload_perl;
		4339	undef $RELOAD_WATCHER;
		4340	};
2469	};	4341	};
2470		4342	}
2471	warn "reloaded";
2472	};
2473
2474	our $RELOAD_WATCHER; # used only during reload
2475		4343
2476	register_command "reload" => sub {	4344	register_command "reload" => sub {
2477	my ($who, $arg) = @_;	4345	my ($who, $arg) = @_;
2478		4346
2479	if ($who->flag (FLAG_WIZ)) {	4347	if ($who->flag (FLAG_WIZ)) {
2480	$who->message ("reloading server.");	4348	$who->message ("reloading server.");
2481		4349	async {
2482	# doing reload synchronously and two reloads happen back-to-back,	4350	$Coro::current->{desc} = "perl_reload";
2483	# coro crashes during coro_state_free->destroy here.
2484
2485	$RELOAD_WATCHER ||= Event->timer (
2486	reentrant => 0,
2487	after => 0,
2488	data => WF_AUTOCANCEL,
2489	cb => sub {
2490	reload;	4351	reload_perl;
2491	undef $RELOAD_WATCHER;
2492	},
2493	);	4352	};
2494	}	4353	}
2495	};	4354	};
2496		4355
2497	unshift @INC, $LIBDIR;	4356	#############################################################################
2498		4357
2499	my $bug_warning = 0;	4358	my $bug_warning = 0;
2500		4359
2501	$TICK_WATCHER = Event->timer (	4360	sub wait_for_tick() {
2502	reentrant => 0,	4361	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2503	parked => 1,	4362
2504	prio => 0,	4363	$WAIT_FOR_TICK->wait;
2505	at => $NEXT_TICK || $TICK,	4364	}
2506	data => WF_AUTOCANCEL,	4365
2507	cb => sub {	4366	sub wait_for_tick_begin() {
		4367	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4368
		4369	my $signal = new Coro::Signal;
		4370	push @WAIT_FOR_TICK_BEGIN, $signal;
		4371	$signal->wait;
		4372	}
		4373
		4374	sub tick {
2508	if ($Coro::current != $Coro::main) {	4375	if ($Coro::current != $Coro::main) {
2509	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"
2510	unless ++$bug_warning > 10;	4377	unless ++$bug_warning > 10;
2511	return;	4378	return;
2512	}	4379	}
2513		4380
2514	$NOW = Event::time;	4381	cf::one_tick; # one server iteration
2515		4382
2516	cf::server_tick; # one server iteration	4383	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2517	$RUNTIME += $TICK;
2518	$NEXT_TICK += $TICK;
2519		4384
2520	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4385	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2521	$NEXT_RUNTIME_WRITE = $NOW + 10;	4386	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2522	Coro::async_pool {	4387	Coro::async_pool {
		4388	$Coro::current->{desc} = "runtime saver";
2523	write_runtime	4389	write_runtime_sync
2524	or warn "ERROR: unable to write runtime file: $!";	4390	or error "ERROR: unable to write runtime file: $!";
2525	};
2526	}	4391	};
		4392	}
2527		4393
		4394	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4395	$sig->send;
		4396	}
2528	$WAIT_FOR_TICK->broadcast;	4397	$WAIT_FOR_TICK->broadcast;
2529	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2530		4398
2531	# my $AFTER = Event::time;	4399	$LOAD = ($NOW - $TICK_START) / $TICK;
2532	# warn $AFTER - $NOW;#d#	4400	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2533		4401
2534	# if we are delayed by four ticks or more, skip them all	4402	if (0) {
2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4403	if ($NEXT_TICK) {
2536		4404	my $jitter = $TICK_START - $NEXT_TICK;
2537	$TICK_WATCHER->at ($NEXT_TICK);	4405	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2538	$TICK_WATCHER->start;	4406	debug "jitter $JITTER\n";#d#
		4407	}
2539	},	4408	}
2540	);	4409	}
2541		4410
2542	{	4411	{
2543	BDB::max_poll_time $TICK * 0.1;	4412	# configure BDB
2544	$BDB_POLL_WATCHER = Event->io (	4413	info "initialising database";
2545	reentrant => 0,	4414
2546	fd => BDB::poll_fileno,
2547	poll => 'r',
2548	prio => 0,
2549	data => WF_AUTOCANCEL,
2550	cb => \&BDB::poll_cb,
2551	);
2552	BDB::min_parallel 8;	4415	BDB::min_parallel 16;
2553		4416	BDB::max_poll_reqs $TICK * 0.1;
2554	BDB::set_sync_prepare {	4417	#$AnyEvent::BDB::WATCHER->priority (1);
2555	my $status;
2556	my $current = $Coro::current;
2557	(
2558	sub {
2559	$status = $!;
2560	$current->ready; undef $current;
2561	},
2562	sub {
2563	Coro::schedule while defined $current;
2564	$! = $status;
2565	},
2566	)
2567	};
2568		4418
2569	unless ($DB_ENV) {	4419	unless ($DB_ENV) {
2570	$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);
2571		4426
2572	cf::sync_job {	4427	cf::sync_job {
2573	eval {	4428	eval {
2574	BDB::db_env_open	4429	BDB::db_env_open
2575	$DB_ENV,	4430	$DB_ENV,
2576	$BDB_ENV_DIR,	4431	$BDBDIR,
2577	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
2578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2579	0666;	4434	0666;
2580		4435
2581	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2582
2583	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2584	$DB_ENV->set_lk_detect;
2585	};	4437	};
2586		4438
2587	cf::cleanup "db_env_open(db): $@" if $@;	4439	cf::cleanup "db_env_open(db): $@" if $@;
2588	};	4440	};
2589	}	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";
2590	}	4454	}
2591		4455
2592	{	4456	{
		4457	# configure IO::AIO
		4458
		4459	info "initialising aio";
2593	IO::AIO::min_parallel 8;	4460	IO::AIO::min_parallel 8;
2594
2595	undef $Coro::AIO::WATCHER;
2596	IO::AIO::max_poll_time $TICK * 0.1;	4461	IO::AIO::max_poll_time $TICK * 0.1;
2597	$AIO_POLL_WATCHER = Event->io (	4462	undef $AnyEvent::AIO::WATCHER;
2598	reentrant => 0,	4463	info "aio initialised";
2599	data => WF_AUTOCANCEL,
2600	fd => IO::AIO::poll_fileno,
2601	poll => 'r',
2602	prio => 6,
2603	cb => \&IO::AIO::poll_cb,
2604	);
2605	}	4464	}
		4465
		4466	our $_log_backtrace;
		4467	our $_log_backtrace_last;
		4468
		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] $msg\n";
		4509	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4510	}
		4511	}
		4512
		4513	# load additional modules
		4514	require "cf/$_.pm" for @EXTRA_MODULES;
		4515	cf::_connect_to_perl_2;
2606		4516
2607	END { cf::emergency_save }	4517	END { cf::emergency_save }
2608		4518
2609	1	4519	1
2610		4520

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