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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.581 by root, Fri Feb 3 02:04:11 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	#our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
50	our $NOW;	138	our $NOW;
51		139
52	our %CFG;	140	our (%PLAYER, %PLAYER_LOADING); # all users
		141	our (%MAP, %MAP_LOADING ); # all maps
		142	our $LINK_MAP; # the special {link} map, which is always available
53		143
54	our $UPTIME; $UPTIME ||= time;	144	# used to convert map paths into valid unix filenames by replacing / by ∕
55	our $RUNTIME;	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		146
57	our %PLAYER; # all users	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
58	our %MAP; # all maps	148	our $LOADAVG; # same thing, but with alpha-smoothing
59	our $LINK_MAP; # the special {link} map	149	our $JITTER; # average jitter
60	our $RANDOM_MAPS = cf::localdir . "/random";	150	our $TICK_START; # for load detecting purposes
61		151
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	152	our @POST_INIT;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
64		159
65	binmode STDOUT;	160	binmode STDOUT;
66	binmode STDERR;	161	binmode STDERR;
67		162
68	# read virtual server time, if available	163	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
70	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
71	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
72	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
73	}	168	}
74		169
75	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
76	mkdir cf::localdir . "/" . cf::playerdir;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		171
81	# a special map that is always available	172	mkdir $_
82	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		174
83	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
84		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
85	#############################################################################	183	#############################################################################
86		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
87	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
88		197
89	=over 4	198	=over 4
90		199
91	=item $cf::UPTIME	200	=item $cf::UPTIME
92		201
93	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
94		218
95	=item $cf::RUNTIME	219	=item $cf::RUNTIME
96		220
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	222	every server tick.
99		223
100	=item $cf::LIBDIR	224	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		225	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		226	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		227
102	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		230	unique-items directory, player file directory, random maps directory and
		231	database environment.
104		232
		233	=item $cf::LOADAVG
		234
		235	The current CPU load on the server (alpha-smoothed), as a value between 0
		236	(none) and 1 (overloaded), indicating how much time is spent on processing
		237	objects per tick. Healthy values are < 0.5.
		238
105	=item $cf::NOW	239	=item $cf::LOAD
106		240
107	The time of the last (current) server tick.	241	The raw value load value from the last tick.
108
109	=item $cf::TICK
110
111	The interval between server ticks, in seconds.
112		242
113	=item %cf::CFG	243	=item %cf::CFG
114		244
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	246	from wherever your confdir points to.
117		247
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	248	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		249
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	251	returns directly I<after> the tick processing (and consequently, can only wake one thread
122	processing has been done. Call C<< ->wait >> on them to maximise the	252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
124		282
125	=back	283	=back
126		284
127	=cut	285	=cut
128		286
129	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
130	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
131	my $msg = join "", @_;	294	my $msg = join "", @_;
132	utf8::encode $msg;
133		295
134	$msg .= "\n"	296	$msg .= "\n"
135	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
136		298
		299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		300
137	LOG llevError, $msg;	301	LOG llevWarn, $msg;
138	};	302	};
139	}	303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
140		317
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	322	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		323	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	324	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		325
148	# we bless all objects into (empty) derived classes to force a method lookup	326	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	327	# within the Safe compartment.
150	for my $pkg (qw(	328	for my $pkg (qw(
151	cf::global cf::attachable	329	cf::global cf::attachable
152	cf::object cf::object::player	330	cf::object cf::object::player
153	cf::client cf::player	331	cf::client cf::player
154	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
155	cf::map cf::party cf::region	334	cf::party cf::region
156	)) {	335	)) {
157	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	337	}
160		338
161	$Event::DIED = sub {	339	$EV::DIED = sub {
162	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
163	};	341	};
		342
		343	#############################################################################
		344
		345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
164		349
165	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
166		351
167	=over 4	352	=over 4
168		353
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	373	$d
189	} || "[unable to dump $_[0]: '$@']";	374	} || "[unable to dump $_[0]: '$@']";
190	}	375	}
191		376
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	377	=item $scalar = cf::load_file $path
193		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
		391	=item $success = cf::replace_file $path, $data, $sync
		392
		393	Atomically replaces the file at the given $path with new $data, and
		394	optionally $sync the data to disk before replacing the file.
		395
		396	=cut
		397
		398	sub replace_file($$;$) {
		399	my ($path, $data, $sync) = @_;
		400
		401	my $lock = cf::lock_acquire ("replace_file:$path");
		402
		403	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		404	or return;
		405
		406	$data = $data->() if ref $data;
		407
		408	length $data == aio_write $fh, 0, (length $data), $data, 0
		409	or return;
		410
		411	!$sync
		412	or !aio_fsync $fh
		413	or return;
		414
		415	aio_close $fh
		416	and return;
		417
		418	aio_rename "$path~", $path
		419	and return;
		420
		421	if ($sync) {
		422	$path =~ s%/[^/]*$%%;
		423	aio_pathsync $path;
		424	}
		425
		426	1
		427	}
		428
194	=item $ref = cf::from_json $json	429	=item $ref = cf::decode_json $json
195		430
196	Converts a JSON string into the corresponding perl data structure.	431	Converts a JSON string into the corresponding perl data structure.
197		432
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	433	=item $json = cf::encode_json $ref
206		434
207	Converts a perl data structure into its JSON representation.	435	Converts a perl data structure into its JSON representation.
208		436
209	=cut	437	=cut
210		438
211	sub to_json($) {	439	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	440
213	JSON::Syck::Dump $_[0]	441	sub encode_json($) { $json_coder->encode ($_[0]) }
		442	sub decode_json($) { $json_coder->decode ($_[0]) }
		443
		444	=item $ref = cf::decode_storable $scalar
		445
		446	Same as Coro::Storable::thaw, so blocks.
		447
		448	=cut
		449
		450	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		451
		452	=item $ref = cf::decode_yaml $scalar
		453
		454	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		455
		456	=cut
		457
		458	sub decode_yaml($) {
		459	fork_call { YAML::XS::Load $_[0] } @_
		460	}
		461
		462	=item $scalar = cf::unlzf $scalar
		463
		464	Same as Compress::LZF::compress, but takes server ticks into account, so
		465	blocks.
		466
		467	=cut
		468
		469	sub unlzf($) {
		470	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		471	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		472	Compress::LZF::decompress $_[0]
		473	}
		474
		475	=item cf::post_init { BLOCK }
		476
		477	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		478	but I<before> the server starts ticking again.
		479
		480	The codeblock will have a single boolean argument to indicate whether this
		481	is a reload or not.
		482
		483	=cut
		484
		485	sub post_init(&) {
		486	push @POST_INIT, shift;
		487	}
		488
		489	sub _post_init {
		490	trace "running post_init jobs";
		491
		492	# run them in parallel...
		493
		494	my @join;
		495
		496	while () {
		497	push @join, map &Coro::async ($_, 0), @POST_INIT;
		498	@POST_INIT = ();
		499
		500	@join or last;
		501
		502	(pop @join)->join;
		503	}
214	}	504	}
215		505
216	=item cf::lock_wait $string	506	=item cf::lock_wait $string
217		507
218	Wait until the given lock is available. See cf::lock_acquire.	508	Wait until the given lock is available. See cf::lock_acquire.
219		509
220	=item my $lock = cf::lock_acquire $string	510	=item my $lock = cf::lock_acquire $string
221		511
222	Wait until the given lock is available and then acquires it and returns	512	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	513	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	514	for example when the coroutine gets canceled), the lock is automatically
225	returned.	515	returned.
226		516
		517	Locks are *not* recursive, locking from the same coro twice results in a
		518	deadlocked coro.
		519
227	Lock names should begin with a unique identifier (for example, cf::map::find	520	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	521	uses map_find and cf::map::load uses map_load).
229		522
230	=cut	523	=item $locked = cf::lock_active $string
231		524
232	our %LOCK;	525	Return true if the lock is currently active, i.e. somebody has locked it.
		526
		527	=cut
		528
		529	our $LOCKS = new Coro::SemaphoreSet;
233		530
234	sub lock_wait($) {	531	sub lock_wait($) {
235	my ($key) = @_;	532	$LOCKS->wait ($_[0]);
236
237	# wait for lock, if any
238	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;
241	}
242	}	533	}
243		534
244	sub lock_acquire($) {	535	sub lock_acquire($) {
245	my ($key) = @_;	536	$LOCKS->guard ($_[0])
		537	}
246		538
247	# wait, to be sure we are not locked	539	sub lock_active($) {
248	lock_wait $key;	540	$LOCKS->count ($_[0]) < 1
249
250	$LOCK{$key} = [];
251
252	Coro::guard {
253	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };
255	}
256	}	541	}
257		542
258	sub freeze_mainloop {	543	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	544	tick_inhibit_inc;
260		545
261	my $guard = Coro::guard { $TICK_WATCHER->start };	546	&Guard::guard (\&tick_inhibit_dec);
262	$TICK_WATCHER->stop;	547	}
263	$guard	548
		549	=item cf::periodic $interval, $cb
		550
		551	Like EV::periodic, but randomly selects a starting point so that the actions
		552	get spread over time.
		553
		554	=cut
		555
		556	sub periodic($$) {
		557	my ($interval, $cb) = @_;
		558
		559	my $start = rand List::Util::min 180, $interval;
		560
		561	EV::periodic $start, $interval, 0, $cb
		562	}
		563
		564	=item cf::get_slot $time[, $priority[, $name]]
		565
		566	Allocate $time seconds of blocking CPU time at priority C<$priority>
		567	(default: 0): This call blocks and returns only when you have at least
		568	C<$time> seconds of cpu time till the next tick. The slot is only valid
		569	till the next cede.
		570
		571	Background jobs should use a priority les than zero, interactive jobs
		572	should use 100 or more.
		573
		574	The optional C<$name> can be used to identify the job to run. It might be
		575	used for statistical purposes and should identify the same time-class.
		576
		577	Useful for short background jobs.
		578
		579	=cut
		580
		581	our @SLOT_QUEUE;
		582	our $SLOT_QUEUE;
		583	our $SLOT_DECAY = 0.9;
		584
		585	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		586	$SLOT_QUEUE = Coro::async {
		587	$Coro::current->desc ("timeslot manager");
		588
		589	my $signal = new Coro::Signal;
		590	my $busy;
		591
		592	while () {
		593	next_job:
		594
		595	my $avail = cf::till_tick;
		596
		597	for (0 .. $#SLOT_QUEUE) {
		598	if ($SLOT_QUEUE[$_][0] <= $avail) {
		599	$busy = 0;
		600	my $job = splice @SLOT_QUEUE, $_, 1, ();
		601	$job->[2]->send;
		602	Coro::cede;
		603	goto next_job;
		604	} else {
		605	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		606	}
		607	}
		608
		609	if (@SLOT_QUEUE) {
		610	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		611	$WAIT_FOR_TICK->wait;
		612	} else {
		613	$busy = 0;
		614	Coro::schedule;
		615	}
		616	}
		617	};
		618
		619	sub get_slot($;$$) {
		620	return if tick_inhibit || $Coro::current == $Coro::main;
		621
		622	my ($time, $pri, $name) = @_;
		623
		624	$time = clamp $time, 0.01, $TICK * .6;
		625
		626	my $sig = new Coro::Signal;
		627
		628	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		629	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		630	$SLOT_QUEUE->ready;
		631	$sig->wait;
264	}	632	}
265		633
266	=item cf::async { BLOCK }	634	=item cf::async { BLOCK }
267		635
268	Currently the same as Coro::async_pool, meaning you cannot use	636	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		641
274	BEGIN { *async = \&Coro::async_pool }	642	BEGIN { *async = \&Coro::async_pool }
275		643
276	=item cf::sync_job { BLOCK }	644	=item cf::sync_job { BLOCK }
277		645
278	The design of crossfire+ requires that the main coro ($Coro::main) is	646	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	647	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	648	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		649	acceptable.
281		650
282	If it must be done, put the blocking parts into C<sync_job>. This will run	651	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	652	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	653	server will be frozen during this time, so the block should either finish
285	fast or be very important.	654	fast or be very important.
…		…
287	=cut	656	=cut
288		657
289	sub sync_job(&) {	658	sub sync_job(&) {
290	my ($job) = @_;	659	my ($job) = @_;
291		660
292	if ($Coro::current == $Coro::main) {	661	if (in_main) {
		662	my $time = AE::time;
		663
293	# this is the main coro, too bad, we have to block	664	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	665	# till the operation succeeds, freezing the server :/
295		666
296	# TODO: use suspend/resume instead	667	#LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	668
298	my $freeze_guard = freeze_mainloop;	669	my $freeze_guard = freeze_mainloop;
299		670
300	my $busy = 1;	671	my $busy = 1;
301	my @res;	672	my @res;
302		673
303	(async {	674	(async {
		675	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	676	@res = eval { $job->() };
305	warn $@ if $@;	677	error $@ if $@;
306	undef $busy;	678	undef $busy;
307	})->prio (Coro::PRIO_MAX);	679	})->prio (Coro::PRIO_MAX);
308		680
309	while ($busy) {	681	while ($busy) {
310	Coro::cede or Event::one_event;	682	if (Coro::nready) {
		683	Coro::cede_notself;
		684	} else {
		685	EV::loop EV::LOOP_ONESHOT;
311	}	686	}
		687	}
		688
		689	my $time = AE::time - $time;
		690
		691	$TICK_START += $time; # do not account sync jobs to server load
312		692
313	wantarray ? @res : $res[0]	693	wantarray ? @res : $res[0]
314	} else {	694	} else {
315	# we are in another coroutine, how wonderful, everything just works	695	# we are in another coroutine, how wonderful, everything just works
316		696
…		…
336	$EXT_CORO{$coro+0} = $coro;	716	$EXT_CORO{$coro+0} = $coro;
337		717
338	$coro	718	$coro
339	}	719	}
340		720
341	sub write_runtime {	721	=item fork_call { }, @args
342	my $runtime = cf::localdir . "/runtime";
343		722
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	723	Executes the given code block with the given arguments in a seperate
345	or return;	724	process, returning the results. Everything must be serialisable with
		725	Coro::Storable. May, of course, block. Note that the executed sub may
		726	never block itself or use any form of event handling.
346		727
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	728	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		729
351	aio_fsync $fh	730	sub post_fork {
352	and return;	731	reset_signals;
		732	}
353		733
354	close $fh	734	sub fork_call(&@) {
355	or return;	735	my ($cb, @args) = @_;
356		736
357	aio_rename "$runtime~", $runtime	737	# we seemingly have to make a local copy of the whole thing,
358	and return;	738	# otherwise perl prematurely frees the stuff :/
		739	# TODO: investigate and fix (likely this will be rather laborious)
359		740
		741	my @res = Coro::Util::fork_eval {
		742	cf::post_fork;
		743	&$cb
		744	} @args;
		745
		746	wantarray ? @res : $res[-1]
		747	}
		748
		749	sub objinfo {
360	1	750	(
		751	"counter value" => cf::object::object_count,
		752	"objects created" => cf::object::create_count,
		753	"objects destroyed" => cf::object::destroy_count,
		754	"freelist size" => cf::object::free_count,
		755	"allocated objects" => cf::object::objects_size,
		756	"active objects" => cf::object::actives_size,
		757	)
		758	}
		759
		760	=item $coin = coin_from_name $name
		761
		762	=cut
		763
		764	our %coin_alias = (
		765	"silver" => "silvercoin",
		766	"silvercoin" => "silvercoin",
		767	"silvercoins" => "silvercoin",
		768	"gold" => "goldcoin",
		769	"goldcoin" => "goldcoin",
		770	"goldcoins" => "goldcoin",
		771	"platinum" => "platinacoin",
		772	"platinumcoin" => "platinacoin",
		773	"platinumcoins" => "platinacoin",
		774	"platina" => "platinacoin",
		775	"platinacoin" => "platinacoin",
		776	"platinacoins" => "platinacoin",
		777	"royalty" => "royalty",
		778	"royalties" => "royalty",
		779	);
		780
		781	sub coin_from_name($) {
		782	$coin_alias{$_[0]}
		783	? cf::arch::find $coin_alias{$_[0]}
		784	: undef
		785	}
		786
		787	=item $value = cf::db_get $family => $key
		788
		789	Returns a single value from the environment database.
		790
		791	=item cf::db_put $family => $key => $value
		792
		793	Stores the given C<$value> in the family. It can currently store binary
		794	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		795
		796	=item $db = cf::db_table "name"
		797
		798	Create and/or open a new database table. The string must not be "db" and must be unique
		799	within each server.
		800
		801	=cut
		802
		803	sub db_table($) {
		804	cf::error "db_get called from main context"
		805	if $Coro::current == $Coro::main;
		806
		807	my ($name) = @_;
		808	my $db = BDB::db_create $DB_ENV;
		809
		810	eval {
		811	$db->set_flags (BDB::CHKSUM);
		812
		813	utf8::encode $name;
		814	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		815	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		816	cf::cleanup "db_open(db): $!" if $!;
		817	};
		818	cf::cleanup "db_open(db): $@" if $@;
		819
		820	$db
		821	}
		822
		823	our $DB;
		824
		825	sub db_init {
		826	$DB ||= db_table "db";
		827	}
		828
		829	sub db_get($$) {
		830	my $key = "$_[0]/$_[1]";
		831
		832	cf::error "db_get called from main context"
		833	if $Coro::current == $Coro::main;
		834
		835	BDB::db_get $DB, undef, $key, my $data;
		836
		837	$! ? ()
		838	: $data
		839	}
		840
		841	sub db_put($$$) {
		842	BDB::dbreq_pri 4;
		843	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		844	}
		845
		846	=item cf::cache $id => [$paths...], $processversion => $process
		847
		848	Generic caching function that returns the value of the resource $id,
		849	caching and regenerating as required.
		850
		851	This function can block.
		852
		853	=cut
		854
		855	sub cache {
		856	my ($id, $src, $processversion, $process) = @_;
		857
		858	my $meta =
		859	join "\x00",
		860	$processversion,
		861	map {
		862	aio_stat $_
		863	and Carp::croak "$_: $!";
		864
		865	($_, (stat _)[7,9])
		866	} @$src;
		867
		868	my $dbmeta = db_get cache => "$id/meta";
		869	if ($dbmeta ne $meta) {
		870	# changed, we may need to process
		871
		872	my @data;
		873	my $md5;
		874
		875	for (0 .. $#$src) {
		876	$data[$_] = load_file $src->[$_];
		877	}
		878
		879	# if processing is expensive, check
		880	# checksum first
		881	if (1) {
		882	$md5 =
		883	join "\x00",
		884	$processversion,
		885	map {
		886	cf::cede_to_tick;
		887	($src->[$_], Digest::MD5::md5_hex $data[$_])
		888	} 0.. $#$src;
		889
		890
		891	my $dbmd5 = db_get cache => "$id/md5";
		892	if ($dbmd5 eq $md5) {
		893	db_put cache => "$id/meta", $meta;
		894
		895	return db_get cache => "$id/data";
		896	}
		897	}
		898
		899	my $t1 = Time::HiRes::time;
		900	my $data = $process->(\@data);
		901	my $t2 = Time::HiRes::time;
		902
		903	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		904
		905	db_put cache => "$id/data", $data;
		906	db_put cache => "$id/md5" , $md5;
		907	db_put cache => "$id/meta", $meta;
		908
		909	return $data;
		910	}
		911
		912	db_get cache => "$id/data"
		913	}
		914
		915	=item cf::datalog type => key => value, ...
		916
		917	Log a datalog packet of the given type with the given key-value pairs.
		918
		919	=cut
		920
		921	sub datalog($@) {
		922	my ($type, %kv) = @_;
		923	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	924	}
362		925
363	=back	926	=back
364		927
365	=cut	928	=cut
366		929
367	#############################################################################	930	#############################################################################
368		931
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522
523	#############################################################################
524
525	=head2 ATTACHABLE OBJECTS	932	=head2 ATTACHABLE OBJECTS
526		933
527	Many objects in crossfire are so-called attachable objects. That means you can	934	Many objects in deliantra are so-called attachable objects. That means you can
528	attach callbacks/event handlers (a collection of which is called an "attachment")	935	attach callbacks/event handlers (a collection of which is called an "attachment")
529	to it. All such attachable objects support the following methods.	936	to it. All such attachable objects support the following methods.
530		937
531	In the following description, CLASS can be any of C<global>, C<object>	938	In the following description, CLASS can be any of C<global>, C<object>
532	C<player>, C<client> or C<map> (i.e. the attachable objects in	939	C<player>, C<client> or C<map> (i.e. the attachable objects in
533	crossfire+).	940	Deliantra).
534		941
535	=over 4	942	=over 4
536		943
537	=item $attachable->attach ($attachment, key => $value...)	944	=item $attachable->attach ($attachment, key => $value...)
538		945
…		…
582	=item cf::CLASS::attachment $name, ...	989	=item cf::CLASS::attachment $name, ...
583		990
584	Register an attachment by C<$name> through which attachable objects of the	991	Register an attachment by C<$name> through which attachable objects of the
585	given CLASS can refer to this attachment.	992	given CLASS can refer to this attachment.
586		993
587	Some classes such as crossfire maps and objects can specify attachments	994	Some classes such as deliantra maps and objects can specify attachments
588	that are attached at load/instantiate time, thus the need for a name.	995	that are attached at load/instantiate time, thus the need for a name.
589		996
590	These calls expect any number of the following handler/hook descriptions:	997	These calls expect any number of the following handler/hook descriptions:
591		998
592	=over 4	999	=over 4
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	1059	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	1060	our @CB_MAP = ();
654		1061
655	my %attachment;	1062	my %attachment;
656		1063
		1064	sub cf::attachable::thawer_merge {
		1065	# simply override everything except _meta
		1066	local $_[0]{_meta};
		1067	%{$_[0]} = %{$_[1]};
		1068	}
		1069
657	sub _attach_cb($$$$) {	1070	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	1071	my ($registry, $event, $prio, $cb) = @_;
659		1072
660	use sort 'stable';	1073	use sort 'stable';
661		1074
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	1108	$registry = $CB_TYPE[$object_type] ||= [];
696		1109
697	} elsif ($type eq "subtype") {	1110	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	1111	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	1112	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1113	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		1114
702	} elsif ($type eq "package") {	1115	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	1116	my $pkg = shift @arg;
704		1117
705	while (my ($name, $id) = each %cb_id) {	1118	while (my ($name, $id) = each %cb_id) {
…		…
710		1123
711	} elsif (exists $cb_id{$type}) {	1124	} elsif (exists $cb_id{$type}) {
712	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1125	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
713		1126
714	} elsif (ref $type) {	1127	} elsif (ref $type) {
715	warn "attaching objects not supported, ignoring.\n";	1128	error "attaching objects not supported, ignoring.\n";
716		1129
717	} else {	1130	} else {
718	shift @arg;	1131	shift @arg;
719	warn "attach argument '$type' not supported, ignoring.\n";	1132	error "attach argument '$type' not supported, ignoring.\n";
720	}	1133	}
721	}	1134	}
722	}	1135	}
723		1136
724	sub _object_attach {	1137	sub _object_attach {
…		…
734	_attach $registry, $klass, @attach;	1147	_attach $registry, $klass, @attach;
735	}	1148	}
736		1149
737	$obj->{$name} = \%arg;	1150	$obj->{$name} = \%arg;
738	} else {	1151	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	1152	info "object uses attachment '$name' which is not available, postponing.\n";
740	}	1153	}
741		1154
742	$obj->{_attachment}{$name} = undef;	1155	$obj->{_attachment}{$name} = undef;
743	}	1156	}
744		1157
…		…
746	if (ref $_[0]) {	1159	if (ref $_[0]) {
747	_object_attach @_;	1160	_object_attach @_;
748	} else {	1161	} else {
749	_attach shift->_attach_registry, @_;	1162	_attach shift->_attach_registry, @_;
750	}	1163	}
		1164	_recalc_want;
751	};	1165	};
752		1166
753	# all those should be optimised	1167	# all those should be optimised
754	sub cf::attachable::detach {	1168	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	1169	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	1172	delete $obj->{_attachment}{$name};
759	reattach ($obj);	1173	reattach ($obj);
760	} else {	1174	} else {
761	Carp::croak "cannot, currently, detach class attachments";	1175	Carp::croak "cannot, currently, detach class attachments";
762	}	1176	}
		1177	_recalc_want;
763	};	1178	};
764		1179
765	sub cf::attachable::attached {	1180	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	1181	my ($obj, $name) = @_;
767		1182
…		…
782	";	1197	";
783	die if $@;	1198	die if $@;
784	}	1199	}
785		1200
786	our $override;	1201	our $override;
787	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1202	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
788		1203
789	sub override {	1204	sub override {
790	$override = 1;	1205	$override = 1;
791	@invoke_results = ();	1206	@INVOKE_RESULTS = (@_);
792	}	1207	}
793		1208
794	sub do_invoke {	1209	sub do_invoke {
795	my $event = shift;	1210	my $event = shift;
796	my $callbacks = shift;	1211	my $callbacks = shift;
797		1212
798	@invoke_results = ();	1213	@INVOKE_RESULTS = ();
799		1214
800	local $override;	1215	local $override;
801		1216
802	for (@$callbacks) {	1217	for (@$callbacks) {
803	eval { &{$_->[1]} };	1218	eval { &{$_->[1]} };
804		1219
805	if ($@) {	1220	if ($@) {
806	warn "$@";
807	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1221	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
808	override;	1222	override;
809	}	1223	}
810		1224
811	return 1 if $override;	1225	return 1 if $override;
812	}	1226	}
813		1227
814	0	1228	0
815	}	1229	}
816		1230
817	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1231	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
818		1232
819	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1233	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
820		1234
821	Generate an object-specific event with the given arguments.	1235	Generate an object-specific event with the given arguments.
822		1236
823	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1237	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
824	removed in future versions), and there is no public API to access override	1238	removed in future versions), and there is no public API to access override
825	results (if you must, access C<@cf::invoke_results> directly).	1239	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		1240
827	=back	1241	=back
828		1242
829	=cut	1243	=cut
830		1244
831	#############################################################################	1245	#############################################################################
832	# object support	1246	# object support
		1247
		1248	sub _object_equal($$);
		1249	sub _object_equal($$) {
		1250	my ($a, $b) = @_;
		1251
		1252	return 0 unless (ref $a) eq (ref $b);
		1253
		1254	if ("HASH" eq ref $a) {
		1255	my @ka = keys %$a;
		1256	my @kb = keys %$b;
		1257
		1258	return 0 if @ka != @kb;
		1259
		1260	for (0 .. $#ka) {
		1261	return 0 unless $ka[$_] eq $kb[$_];
		1262	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1263	}
		1264
		1265	} elsif ("ARRAY" eq ref $a) {
		1266
		1267	return 0 if @$a != @$b;
		1268
		1269	for (0 .. $#$a) {
		1270	return 0 unless _object_equal $a->[$_], $b->[$_];
		1271	}
		1272
		1273	} elsif ($a ne $b) {
		1274	return 0;
		1275	}
		1276
		1277	1
		1278	}
		1279
		1280	our $SLOW_MERGES;#d#
		1281	sub _can_merge {
		1282	my ($ob1, $ob2) = @_;
		1283
		1284	++$SLOW_MERGES;#d#
		1285
		1286	# we do the slow way here
		1287	return _object_equal $ob1, $ob2
		1288	}
833		1289
834	sub reattach {	1290	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	1291	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	1292	my ($obj) = @_;
		1293
		1294	# no longer needed after getting rid of delete_package?
		1295	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		1296
838	my $registry = $obj->registry;	1297	my $registry = $obj->registry;
839		1298
840	@$registry = ();	1299	@$registry = ();
841		1300
…		…
846	for (@$attach) {	1305	for (@$attach) {
847	my ($klass, @attach) = @$_;	1306	my ($klass, @attach) = @$_;
848	_attach $registry, $klass, @attach;	1307	_attach $registry, $klass, @attach;
849	}	1308	}
850	} else {	1309	} else {
851	warn "object uses attachment '$name' that is not available, postponing.\n";	1310	info "object uses attachment '$name' that is not available, postponing.\n";
852	}	1311	}
853	}	1312	}
854	}	1313	}
855		1314
856	cf::attachable->attach (	1315	cf::attachable->attach (
857	prio => -1000000,	1316	prio => -1000000,
858	on_instantiate => sub {	1317	on_instantiate => sub {
859	my ($obj, $data) = @_;	1318	my ($obj, $data) = @_;
860		1319
861	$data = from_json $data;	1320	$data = decode_json $data;
862		1321
863	for (@$data) {	1322	for (@$data) {
864	my ($name, $args) = @$_;	1323	my ($name, $args) = @$_;
865		1324
866	$obj->attach ($name, %{$args || {} });	1325	$obj->attach ($name, %{$args || {} });
…		…
882	sub object_freezer_save {	1341	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1342	my ($filename, $rdata, $objs) = @_;
884		1343
885	sync_job {	1344	sync_job {
886	if (length $$rdata) {	1345	if (length $$rdata) {
		1346	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1347	trace sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1348	$decname, length $$rdata, scalar @$objs
		1349	if $VERBOSE_IO;
889		1350
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1351	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1352	aio_chmod $fh, SAVE_MODE;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1353	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1354	if ($cf::USE_FSYNC) {
		1355	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
893	aio_fsync $fh;	1356	aio_fsync $fh;
		1357	}
894	close $fh;	1358	aio_close $fh;
895		1359
896	if (@$objs) {	1360	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1361	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	1362	aio_chmod $fh, SAVE_MODE;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1363	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1364	aio_write $fh, 0, (length $data), $data, 0;
		1365	if ($cf::USE_FSYNC) {
		1366	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
901	aio_fsync $fh;	1367	aio_fsync $fh;
		1368	}
902	close $fh;	1369	aio_close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1370	aio_rename "$filename.pst~", "$filename.pst";
904	}	1371	}
905	} else {	1372	} else {
906	aio_unlink "$filename.pst";	1373	aio_unlink "$filename.pst";
907	}	1374	}
908		1375
909	aio_rename "$filename~", $filename;	1376	aio_rename "$filename~", $filename;
		1377
		1378	$filename =~ s%/[^/]+$%%;
		1379	aio_pathsync $filename if $cf::USE_FSYNC;
910	} else {	1380	} else {
911	warn "FATAL: $filename~: $!\n";	1381	error "unable to save objects: $filename~: $!\n";
912	}	1382	}
913	} else {	1383	} else {
914	aio_unlink $filename;	1384	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1385	aio_unlink "$filename.pst";
916	}	1386	}
917	}	1387	};
918	}	1388	}
919		1389
920	sub object_freezer_as_string {	1390	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1391	my ($rdata, $objs) = @_;
922		1392
…		…
934	or return;	1404	or return;
935		1405
936	unless (aio_stat "$filename.pst") {	1406	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1407	(aio_load "$filename.pst", $av) >= 0
938	or return;	1408	or return;
		1409
939	$av = eval { (Storable::thaw $av)->{objs} };	1410	my $st = eval { Coro::Storable::thaw $av };
		1411	$av = $st->{objs};
940	}	1412	}
941		1413
		1414	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1415	trace sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1416	$decname, length $data, scalar @{$av || []}
		1417	if $VERBOSE_IO;
		1418
944	return ($data, $av);	1419	($data, $av)
945	}	1420	}
		1421
		1422	=head2 COMMAND CALLBACKS
		1423
		1424	=over 4
		1425
		1426	=cut
946		1427
947	#############################################################################	1428	#############################################################################
948	# command handling &c	1429	# command handling &c
949		1430
950	=item cf::register_command $name => \&callback($ob,$args);	1431	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1444	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1445	}
965		1446
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1447	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1448
968	Register a callbackf ro execution when the client sends an extcmd packet.	1449	Register a callback for execution when the client sends an (synchronous)
		1450	extcmd packet. Ext commands will be processed in the order they are
		1451	received by the server, like other user commands. The first argument is
		1452	the logged-in player. Ext commands can only be processed after a player
		1453	has logged in successfully.
969		1454
970	If the callback returns something, it is sent back as if reply was being	1455	If the callback returns something, it is sent back as if reply was being
971	called.	1456	called.
972		1457
		1458	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1459
		1460	Register a callback for execution when the client sends an (asynchronous)
		1461	exticmd packet. Exti commands are processed by the server as soon as they
		1462	are received, i.e. out of order w.r.t. other commands. The first argument
		1463	is a client socket. Exti commands can be received anytime, even before
		1464	log-in.
		1465
		1466	If the callback returns something, it is sent back as if reply was being
		1467	called.
		1468
973	=cut	1469	=cut
974		1470
975	sub register_extcmd {	1471	sub register_extcmd {
976	my ($name, $cb) = @_;	1472	my ($name, $cb) = @_;
977		1473
978	$EXTCMD{$name} = $cb;	1474	$EXTCMD{$name} = $cb;
979	}	1475	}
980		1476
		1477	sub register_exticmd {
		1478	my ($name, $cb) = @_;
		1479
		1480	$EXTICMD{$name} = $cb;
		1481	}
		1482
		1483	use File::Glob ();
		1484
981	cf::player->attach (	1485	cf::player->attach (
982	on_command => sub {	1486	on_unknown_command => sub {
983	my ($pl, $name, $params) = @_;	1487	my ($pl, $name, $params) = @_;
984		1488
985	my $cb = $COMMAND{$name}	1489	my $cb = $COMMAND{$name}
986	or return;	1490	or return;
987		1491
…		…
992	cf::override;	1496	cf::override;
993	},	1497	},
994	on_extcmd => sub {	1498	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1499	my ($pl, $buf) = @_;
996		1500
997	my $msg = eval { from_json $buf };	1501	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1502
999	if (ref $msg) {	1503	if (ref $msg) {
		1504	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1505
		1506	my @reply;
		1507
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1508	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1509	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1510	}
		1511
		1512	$pl->ext_reply ($reply, @reply)
		1513	if $reply;
		1514
1005	} else {	1515	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1516	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1517	}
1008		1518
1009	cf::override;	1519	cf::override;
1010	},	1520	},
1011	);	1521	);
1012		1522
		1523	# "readahead" all extensions
1013	sub load_extension {	1524	sub cache_extensions {
1014	my ($path) = @_;	1525	my $grp = IO::AIO::aio_group;
1015		1526
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1527	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1017	my $base = $1;	1528	for (grep /\.ext$/, @{$_[0]}) {
1018	my $pkg = $1;	1529	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1019	$pkg =~ s/[^[:word:]]/_/g;	1530	}
1020	$pkg = "ext::$pkg";	1531	};
1021		1532
1022	warn "... loading '$path' into '$pkg'\n";	1533	$grp
1023
1024	open my $fh, "<:utf8", $path
1025	or die "$path: $!";
1026
1027	my $source =
1028	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032
1033	eval $source
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036
1037	push @EXTS, $pkg;
1038	}	1534	}
1039		1535
1040	sub load_extensions {	1536	sub load_extensions {
		1537	info "loading extensions...";
		1538
		1539	cf::sync_job {
		1540	my %todo;
		1541
1041	for my $ext (<$LIBDIR/*.ext>) {	1542	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1543	next unless -r $path;
1043	eval {	1544
1044	load_extension $ext;	1545	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1546	my $base = $1;
		1547	my $pkg = $1;
		1548	$pkg =~ s/[^[:word:]]/_/g;
		1549	$pkg = "ext::$pkg";
		1550
		1551	open my $fh, "<:utf8", $path
		1552	or die "$path: $!";
		1553
		1554	my $source = do { local $/; <$fh> };
		1555
		1556	my %ext = (
		1557	path => $path,
		1558	base => $base,
		1559	pkg => $pkg,
		1560	);
		1561
		1562	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1563	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1564
		1565	$ext{source} =
		1566	"package $pkg; use common::sense;\n"
		1567	. "#line 1 \"$path\"\n{\n"
		1568	. $source
		1569	. "\n};\n1";
		1570
		1571	$todo{$base} = \%ext;
		1572	}
		1573
		1574	my $pass = 0;
		1575	my %done;
		1576	while (%todo) {
		1577	my $progress;
		1578
		1579	++$pass;
		1580
		1581	ext:
		1582	while (my ($k, $v) = each %todo) {
		1583	for (split /,\s*/, $v->{meta}{depends}) {
		1584	next ext
		1585	unless exists $done{$_};
		1586	}
		1587
		1588	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1589
		1590	my $active = eval $v->{source};
		1591
		1592	if (length $@) {
		1593	error "$v->{path}: $@\n";
		1594
		1595	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1596	if exists $v->{meta}{mandatory};
		1597
		1598	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1599	delete $todo{$k};
		1600	} else {
		1601	$done{$k} = delete $todo{$k};
		1602	push @EXTS, $v->{pkg};
		1603	$progress = 1;
		1604
		1605	info "$v->{base}: extension inactive.\n"
		1606	unless $active;
		1607	}
1045	1	1608	}
1046	} or warn "$ext not loaded: $@";	1609
		1610	unless ($progress) {
		1611	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1612
		1613	while (my ($k, $v) = each %todo) {
		1614	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1615	if exists $v->{meta}{mandatory};
		1616	}
		1617
		1618	last;
		1619	}
		1620	}
1047	}	1621	};
1048	}	1622	}
1049		1623
1050	#############################################################################	1624	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1625
1053	*cf::mapsupport::on_clean = sub {	1626	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1627
1066	=head2 CORE EXTENSIONS	1628	=head2 CORE EXTENSIONS
1067		1629
1068	Functions and methods that extend core crossfire objects.	1630	Functions and methods that extend core deliantra objects.
1069		1631
1070	=cut	1632	=cut
1071		1633
1072	package cf::player;	1634	package cf::player;
1073		1635
…		…
1075		1637
1076	=head3 cf::player	1638	=head3 cf::player
1077		1639
1078	=over 4	1640	=over 4
1079		1641
		1642	=item cf::player::num_playing
		1643
		1644	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1645
		1646	=cut
		1647
		1648	sub num_playing {
		1649	scalar grep
		1650	$_->ob->map
		1651	&& !$_->hidden
		1652	&& !$_->ob->flag (cf::FLAG_WIZ),
		1653	cf::player::list
		1654	}
		1655
1080	=item cf::player::find $login	1656	=item cf::player::find $login
1081		1657
1082	Returns the given player object, loading it if necessary (might block).	1658	Returns the given player object, loading it if necessary (might block).
1083		1659
1084	=cut	1660	=cut
1085		1661
1086	sub playerdir($) {	1662	sub playerdir($) {
1087	cf::localdir	1663	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1664	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1665	}
1093		1666
1094	sub path($) {	1667	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1668	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1669
1097	(playerdir $login) . "/$login.pl"	1670	(playerdir $login) . "/playerdata"
1098	}	1671	}
1099		1672
1100	sub find_active($) {	1673	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1674	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1675	and $cf::PLAYER{$_[0]}->active
…		…
1105		1678
1106	sub exists($) {	1679	sub exists($) {
1107	my ($login) = @_;	1680	my ($login) = @_;
1108		1681
1109	$cf::PLAYER{$login}	1682	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1683	or !aio_stat path $login
1111	}	1684	}
1112		1685
1113	sub find($) {	1686	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1687	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1688	my $login = $_[0];
1116		1689
1117	my $guard = cf::lock_acquire "user_find:$login";	1690	my $guard = cf::lock_acquire "user_find:$login";
1118		1691
1119	$cf::PLAYER{$_[0]} || do {	1692	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1693	# rename old playerfiles to new ones
		1694	#TODO: remove when no longer required
		1695	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1696	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1697	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1698	aio_unlink +(playerdir $login) . "/$login.pl";
		1699
		1700	my $f = new_from_file cf::object::thawer path $login
1121	or return;	1701	or return;
		1702
		1703	my $pl = cf::player::load_pl $f
		1704	or return;
		1705
		1706	local $cf::PLAYER_LOADING{$login} = $pl;
		1707	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1708	$cf::PLAYER{$login} = $pl
1123	}	1709	}
1124	}	1710	}
1125	}	1711	}
		1712
		1713	cf::player->attach (
		1714	on_load => sub {
		1715	my ($pl, $path) = @_;
		1716
		1717	# restore slots saved in save, below
		1718	my $slots = delete $pl->{_slots};
		1719
		1720	$pl->ob->current_weapon ($slots->[0]);
		1721	$pl->combat_ob ($slots->[1]);
		1722	$pl->ranged_ob ($slots->[2]);
		1723	},
		1724	);
1126		1725
1127	sub save($) {	1726	sub save($) {
1128	my ($pl) = @_;	1727	my ($pl) = @_;
1129		1728
1130	return if $pl->{deny_save};	1729	return if $pl->{deny_save};
…		…
1135	return if $pl->{deny_save};	1734	return if $pl->{deny_save};
1136		1735
1137	aio_mkdir playerdir $pl, 0770;	1736	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1737	$pl->{last_save} = $cf::RUNTIME;
1139		1738
		1739	cf::get_slot 0.01;
		1740
		1741	# save slots, to be restored later
		1742	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1743
1140	$pl->save_pl ($path);	1744	$pl->save_pl ($path);
1141	Coro::cede;	1745	cf::cede_to_tick;
1142	}	1746	}
1143		1747
1144	sub new($) {	1748	sub new($) {
1145	my ($login) = @_;	1749	my ($login) = @_;
1146		1750
…		…
1152	$cf::PLAYER{$login} = $self;	1756	$cf::PLAYER{$login} = $self;
1153		1757
1154	$self	1758	$self
1155	}	1759	}
1156		1760
		1761	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1762
		1763	=cut
		1764
		1765	sub send_msg {
		1766	my $ns = shift->ns
		1767	or return;
		1768	$ns->send_msg (@_);
		1769	}
		1770
1157	=item $pl->quit_character	1771	=item $pl->quit_character
1158		1772
1159	Nukes the player without looking back. If logged in, the connection will	1773	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1774	be destroyed. May block for a long time.
1161		1775
1162	=cut	1776	=cut
1163		1777
1164	sub quit_character {	1778	sub quit_character {
1165	my ($pl) = @_;	1779	my ($pl) = @_;
1166		1780
		1781	my $name = $pl->ob->name;
		1782
1167	$pl->{deny_save} = 1;	1783	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1784	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1169		1785
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1786	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1171	$pl->deactivate;	1787	$pl->deactivate;
		1788
		1789	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1172	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1790	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1791	ext::highscore::check ($pl->ob);
		1792
1173	$pl->ns->destroy if $pl->ns;	1793	$pl->ns->destroy if $pl->ns;
1174		1794
1175	my $path = playerdir $pl;	1795	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1796	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1797	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1798	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1799	$pl->destroy;
		1800
		1801	my $prefix = qr<^~\Q$name\E/>;
		1802
		1803	# nuke player maps
		1804	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1805
1180	IO::AIO::aio_rmtree $temp;	1806	IO::AIO::aio_rmtree $temp;
		1807	}
		1808
		1809	=item $pl->kick
		1810
		1811	Kicks a player out of the game. This destroys the connection.
		1812
		1813	=cut
		1814
		1815	sub kick {
		1816	my ($pl, $kicker) = @_;
		1817
		1818	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1819	$pl->killer ("kicked");
		1820	$pl->ns->destroy;
1181	}	1821	}
1182		1822
1183	=item cf::player::list_logins	1823	=item cf::player::list_logins
1184		1824
1185	Returns am arrayref of all valid playernames in the system, can take a	1825	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1826	while and may block, so not sync_job-capable, ever.
1187		1827
1188	=cut	1828	=cut
1189		1829
1190	sub list_logins {	1830	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1831	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1832	or return [];
1193		1833
1194	my @logins;	1834	my @logins;
1195		1835
1196	for my $login (@$dirs) {	1836	for my $login (@$dirs) {
		1837	my $path = path $login;
		1838
		1839	# a .pst is a dead give-away for a valid player
		1840	# if no pst file found, open and chekc for blocked users
		1841	if (aio_stat "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1842	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1843	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1844	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1845	}
1200		1846
1201	utf8::decode $login;	1847	utf8::decode $login;
1202	push @logins, $login;	1848	push @logins, $login;
1203	}	1849	}
1204		1850
1205	\@logins	1851	\@logins
1206	}	1852	}
1207		1853
1208	=item $player->maps	1854	=item $player->maps
1209		1855
		1856	=item cf::player::maps $login
		1857
1210	Returns an arrayref of cf::path's of all maps that are private for this	1858	Returns an arrayref of map paths that are private for this
1211	player. May block.	1859	player. May block.
1212		1860
1213	=cut	1861	=cut
1214		1862
1215	sub maps($) {	1863	sub maps($) {
1216	my ($pl) = @_;	1864	my ($pl) = @_;
		1865
		1866	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1867
1218	my $files = aio_readdir playerdir $pl	1868	my $files = aio_readdir playerdir $pl
1219	or return;	1869	or return;
1220		1870
1221	my @paths;	1871	my @paths;
…		…
1223	for (@$files) {	1873	for (@$files) {
1224	utf8::decode $_;	1874	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1875	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1876	next unless /^$PATH_SEP/o;
1227		1877
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1878	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1879	}
1230		1880
1231	\@paths	1881	\@paths
1232	}	1882	}
1233		1883
		1884	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1885
		1886	Expand deliantra pod fragments into protocol xml.
		1887
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1888	=item $player->ext_reply ($msgid, @msg)
1235		1889
1236	Sends an ext reply to the player.	1890	Sends an ext reply to the player.
1237		1891
1238	=cut	1892	=cut
1239		1893
1240	sub ext_reply($$$%) {	1894	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1895	my ($self, $id, @msg) = @_;
1242		1896
1243	$msg{msgid} = $id;	1897	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1898	}
1247		1899
1248	package cf;	1900	=item $player->ext_msg ($type, @msg)
		1901
		1902	Sends an ext event to the client.
		1903
		1904	=cut
		1905
		1906	sub ext_msg($$@) {
		1907	my ($self, $type, @msg) = @_;
		1908
		1909	$self->ns->ext_msg ($type, @msg);
		1910	}
		1911
		1912	=head3 cf::region
		1913
		1914	=over 4
		1915
		1916	=cut
		1917
		1918	package cf::region;
		1919
		1920	=item cf::region::find_by_path $path
		1921
		1922	Tries to decuce the likely region for a map knowing only its path.
		1923
		1924	=cut
		1925
		1926	sub find_by_path($) {
		1927	my ($path) = @_;
		1928
		1929	$path =~ s/^~[^\/]*//; # skip ~login
		1930
		1931	my ($match, $specificity);
		1932
		1933	for my $region (list) {
		1934	if ($region->{match} && $path =~ $region->{match}) {
		1935	($match, $specificity) = ($region, $region->specificity)
		1936	if $region->specificity > $specificity;
		1937	}
		1938	}
		1939
		1940	$match
		1941	}
1249		1942
1250	=back	1943	=back
1251
1252		1944
1253	=head3 cf::map	1945	=head3 cf::map
1254		1946
1255	=over 4	1947	=over 4
1256		1948
…		…
1259	package cf::map;	1951	package cf::map;
1260		1952
1261	use Fcntl;	1953	use Fcntl;
1262	use Coro::AIO;	1954	use Coro::AIO;
1263		1955
		1956	use overload
		1957	'""' => \&as_string,
		1958	fallback => 1;
		1959
1264	our $MAX_RESET = 3600;	1960	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1961	our $DEFAULT_RESET = 3000;
1266		1962
1267	sub generate_random_map {	1963	sub generate_random_map {
		1964	my ($self, $rmp) = @_;
		1965
		1966	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1967
		1968	$self->_create_random_map ($rmp);
		1969	}
		1970
		1971	=item cf::map->register ($regex, $prio)
		1972
		1973	Register a handler for the map path matching the given regex at the
		1974	givne priority (higher is better, built-in handlers have priority 0, the
		1975	default).
		1976
		1977	=cut
		1978
		1979	sub register {
		1980	my (undef, $regex, $prio) = @_;
		1981	my $pkg = caller;
		1982
		1983	push @{"$pkg\::ISA"}, __PACKAGE__;
		1984
		1985	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1986	}
		1987
		1988	# also paths starting with '/'
		1989	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1990
		1991	sub thawer_merge {
		1992	my ($self, $merge) = @_;
		1993
		1994	# we have to keep some variables in memory intact
		1995	local $self->{path};
		1996	local $self->{load_path};
		1997
		1998	$self->SUPER::thawer_merge ($merge);
		1999	}
		2000
		2001	sub normalise {
1268	my ($path, $rmp) = @_;	2002	my ($path, $base) = @_;
1269		2003
1270	# mit "rum" bekleckern, nicht	2004	$path = "$path"; # make sure it's a string
1271	cf::map::_create_random_map (	2005
		2006	$path =~ s/\.map$//;
		2007
		2008	# map plan:
		2009	#
		2010	# /! non-realised random map exit (special hack!)
		2011	# {... are special paths that are not being touched
		2012	# ?xxx/... are special absolute paths
		2013	# ?random/... random maps
		2014	# /... normal maps
		2015	# ~user/... per-player map of a specific user
		2016
		2017	$path =~ s/$PATH_SEP/\//go;
		2018
		2019	# treat it as relative path if it starts with
		2020	# something that looks reasonable
		2021	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2022	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2023
		2024	$base =~ s{[^/]+/?$}{};
		2025	$path = "$base/$path";
		2026	}
		2027
		2028	for ($path) {
		2029	redo if s{/\.?/}{/};
		2030	redo if s{/[^/]+/\.\./}{/};
		2031	}
		2032
1272	$path,	2033	$path
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	2034	}
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	2035
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	2036	sub new_from_path {
1276	$rmp->{exit_on_final_map},	2037	my (undef, $path, $base) = @_;
1277	$rmp->{xsize}, $rmp->{ysize},	2038
1278	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	2039	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1279	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	2040
1280	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	2041	$path = normalise $path, $base;
1281	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	2042
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	2043	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	2044	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2045	my $self = bless cf::map::new, $pkg;
		2046	$self->{path} = $path; $self->path ($path);
		2047	$self->init; # pass $1 etc.
		2048	return $self;
		2049	}
		2050	}
		2051
		2052	Carp::cluck "unable to resolve path '$path' (base '$base')";
1284	)	2053	()
1285	}	2054	}
1286		2055
1287	# and all this just because we cannot iterate over	2056	# may re-bless or do other evil things
1288	# all maps in C++...	2057	sub init {
1289	sub change_all_map_light {
1290	my ($change) = @_;	2058	my ($self) = @_;
1291		2059
1292	$_->change_map_light ($change)	2060	$self
1293	for grep $_->outdoor, values %cf::MAP;
1294	}	2061	}
1295		2062
		2063	sub as_string {
		2064	my ($self) = @_;
		2065
		2066	"$self->{path}"
		2067	}
		2068
		2069	# the displayed name, this is a one way mapping
		2070	sub visible_name {
		2071	&as_string
		2072	}
		2073
		2074	# the original (read-only) location
		2075	sub load_path {
		2076	my ($self) = @_;
		2077
		2078	"$MAPDIR/$self->{path}.map"
		2079	}
		2080
		2081	# the temporary/swap location
		2082	sub save_path {
		2083	my ($self) = @_;
		2084
		2085	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2086	"$TMPDIR/$path.map"
		2087	}
		2088
		2089	# the unique path, undef == no special unique path
		2090	sub uniq_path {
		2091	my ($self) = @_;
		2092
		2093	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2094	"$UNIQUEDIR/$path"
		2095	}
		2096
		2097	sub decay_objects {
		2098	my ($self) = @_;
		2099
		2100	return if $self->{deny_reset};
		2101
		2102	$self->do_decay_objects;
		2103	}
		2104
		2105	sub unlink_save {
		2106	my ($self) = @_;
		2107
		2108	utf8::encode (my $save = $self->save_path);
		2109	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2110	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2111	}
		2112
1296	sub load_map_header($) {	2113	sub load_header_from($) {
1297	my ($path) = @_;	2114	my ($self, $path) = @_;
1298		2115
1299	utf8::encode $path;	2116	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	2117	my $f = new_from_file cf::object::thawer $path
1301	or return;	2118	or return;
1302		2119
1303	my $map = cf::map::new	2120	$self->_load_header ($f)
1304	or return;	2121	or return;
1305		2122
1306	# for better error messages only, will be overwritten later	2123	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	2124	$f->resolve_delayed_derefs;
1308		2125
1309	$map->load_header ($path)	2126	$self->{load_path} = $path;
		2127
		2128	1
		2129	}
		2130
		2131	# used to laod the header of an original map
		2132	sub load_header_orig {
		2133	my ($self) = @_;
		2134
		2135	$self->load_header_from ($self->load_path)
		2136	}
		2137
		2138	# used to laod the header of an instantiated map
		2139	sub load_header_temp {
		2140	my ($self) = @_;
		2141
		2142	$self->load_header_from ($self->save_path)
		2143	}
		2144
		2145	# called after loading the header from an instantiated map
		2146	sub prepare_temp {
		2147	my ($self) = @_;
		2148
		2149	$self->last_access ((delete $self->{last_access})
		2150	|| $cf::RUNTIME); #d#
		2151	# safety
		2152	$self->{instantiate_time} = $cf::RUNTIME
		2153	if $self->{instantiate_time} > $cf::RUNTIME;
		2154	}
		2155
		2156	# called after loading the header from an original map
		2157	sub prepare_orig {
		2158	my ($self) = @_;
		2159
		2160	$self->{load_original} = 1;
		2161	$self->{instantiate_time} = $cf::RUNTIME;
		2162	$self->last_access ($cf::RUNTIME);
		2163	$self->instantiate;
		2164	}
		2165
		2166	sub load_header {
		2167	my ($self) = @_;
		2168
		2169	if ($self->load_header_temp) {
		2170	$self->prepare_temp;
		2171	} else {
		2172	$self->load_header_orig
1310	or return;	2173	or return;
		2174	$self->prepare_orig;
		2175	}
1311		2176
1312	$map->{load_path} = $path;	2177	$self->{deny_reset} = 1
		2178	if $self->no_reset;
1313		2179
1314	$map	2180	$self->default_region (cf::region::find_by_path $self->{path})
		2181	unless $self->default_region;
		2182
		2183	1
1315	}	2184	}
1316		2185
1317	sub find;	2186	sub find;
1318	sub find {	2187	sub find {
1319	my ($path, $origin) = @_;	2188	my ($path, $origin) = @_;
1320		2189
1321	#warn "find<$path,$origin>\n";#d#	2190	cf::cede_to_tick;
1322		2191
1323	$path = new cf::path $path, $origin && $origin->path;	2192	$path = normalise $path, $origin;
1324	my $key = $path->as_string;
1325		2193
1326	cf::lock_wait "map_find:$key";	2194	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1327
1328	$cf::MAP{$key} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	2195	my $guard2 = cf::lock_acquire "map_find:$path";
1330		2196
1331	# do it the slow way	2197	$cf::MAP{$path} || do {
1332	my $map = $path->load_temp;	2198	my $map = new_from_path cf::map $path
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	2199	or return;
1345		2200
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	2201	$map->{last_save} = $cf::RUNTIME;
1358		2202
1359	Coro::cede;	2203	$map->load_header
		2204	or return;
1360		2205
1361	if ($map->should_reset) {	2206	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2207	# doing this can freeze the server in a sync job, obviously
		2208	#$cf::WAIT_FOR_TICK->wait;
		2209	undef $guard2;
		2210	undef $guard1;
1362	$map->reset;	2211	$map->reset;
1363	undef $guard;
1364	$map = find $path	2212	return find $path;
1365	or return;
1366	}	2213	}
1367		2214
1368	$cf::MAP{$key} = $map	2215	$cf::MAP{$path} = $map
1369	}	2216	}
1370	}	2217	}
		2218
		2219	sub pre_load { }
		2220	#sub post_load { } # XS
1371		2221
1372	sub load {	2222	sub load {
1373	my ($self) = @_;	2223	my ($self) = @_;
1374		2224
		2225	local $self->{deny_reset} = 1; # loading can take a long time
		2226
1375	my $path = $self->{path};	2227	my $path = $self->{path};
		2228
		2229	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2230	my $guard = cf::lock_acquire "map_data:$path";
1377		2231
1378	return if $self->in_memory != cf::MAP_SWAPPED;	2232	return unless $self->valid;
		2233	return unless $self->state == cf::MAP_SWAPPED;
1379		2234
1380	$self->in_memory (cf::MAP_LOADING);
1381
1382	$self->alloc;	2235	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	2236
		2237	$self->pre_load;
		2238	cf::cede_to_tick;
		2239
		2240	if (exists $self->{load_path}) {
		2241	my $f = new_from_file cf::object::thawer $self->{load_path};
		2242	$f->skip_block;
		2243	$self->_load_objects ($f)
1384	or return;	2244	or return;
1385		2245
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2246	$self->post_load_original
1387	if delete $self->{load_original};	2247	if delete $self->{load_original};
1388		2248
1389	if (my $uniq = $path->uniq_path) {	2249	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	2250	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	2251	unless (aio_stat $uniq) {
		2252	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	2253	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	2254	$self->_load_objects ($f);
		2255	$f->resolve_delayed_derefs;
		2256	}
		2257	}
1394	}	2258	}
1395	}
1396		2259
1397	Coro::cede;	2260	$f->resolve_delayed_derefs;
		2261	} else {
		2262	$self->post_load_original
		2263	if delete $self->{load_original};
		2264	}
1398		2265
		2266	$self->state (cf::MAP_INACTIVE);
		2267
		2268	cf::cede_to_tick;
1399	# now do the right thing for maps	2269	# now do the right thing for maps
1400	$self->link_multipart_objects;	2270	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	2271	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	2272	unless $self->difficulty;
1412	$self->activate;	2273	cf::cede_to_tick;
		2274
		2275	unless ($self->{deny_activate}) {
		2276	$self->decay_objects;
		2277	$self->fix_auto_apply;
		2278	$self->update_buttons;
		2279	cf::cede_to_tick;
		2280	#$self->activate; # no longer activate maps automatically
		2281	}
		2282
		2283	$self->{last_save} = $cf::RUNTIME;
		2284	$self->last_access ($cf::RUNTIME);
		2285	}
		2286
		2287	$self->post_load;
		2288
1413	}	2289	1
1414
1415	Coro::cede;
1416
1417	$self->in_memory (cf::MAP_IN_MEMORY);
1418	}	2290	}
1419		2291
1420	# find and load all maps in the 3x3 area around a map	2292	# customize the map for a given player, i.e.
1421	sub load_diag {	2293	# return the _real_ map. used by e.g. per-player
1422	my ($map) = @_;	2294	# maps to change the path to ~playername/mappath
		2295	sub customise_for {
		2296	my ($self, $ob) = @_;
1423		2297
1424	my @diag; # diagonal neighbours	2298	return find "~" . $ob->name . "/" . $self->{path}
		2299	if $self->per_player;
1425		2300
1426	for (0 .. 3) {	2301	# return find "?party/" . $ob->name . "/" . $self->{path}
1427	my $neigh = $map->tile_path ($_)	2302	# if $self->per_party;
1428	or next;
1429	$neigh = find $neigh, $map
1430	or next;
1431	$neigh->load;
1432		2303
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2304	$self
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}
1436
1437	for (@diag) {
1438	my $neigh = find @$_
1439	or next;
1440	$neigh->load;
1441	}
1442	}	2305	}
1443		2306
1444	sub find_sync {	2307	sub find_sync {
1445	my ($path, $origin) = @_;	2308	my ($path, $origin) = @_;
1446		2309
1447	cf::sync_job { find $path, $origin }	2310	# it's a bug to call this from the main context
		2311	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2312	if $Coro::current == $Coro::main;
		2313
		2314	find $path, $origin
1448	}	2315	}
1449		2316
1450	sub do_load_sync {	2317	sub do_load_sync {
1451	my ($map) = @_;	2318	my ($map) = @_;
1452		2319
1453	cf::sync_job { $map->load };	2320	# it's a bug to call this from the main context
		2321	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2322	if $Coro::current == $Coro::main;
		2323
		2324	$map->load;
1454	}	2325	}
1455		2326
1456	our %MAP_PREFETCH;	2327	our %MAP_PREFETCH;
		2328	our $MAP_PREFETCHER = undef;
		2329
		2330	sub find_async {
		2331	my ($path, $origin, $load) = @_;
		2332
		2333	$path = normalise $path, $origin;
		2334
		2335	if (my $map = $cf::MAP{$path}) {
		2336	return $map if !$load || $map->linkable;
		2337	}
		2338
		2339	$MAP_PREFETCH{$path} |= $load;
		2340
1457	our $MAP_PREFETCHER = Coro::async {	2341	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2342	$Coro::current->{desc} = "map prefetcher";
		2343
1459	while (%MAP_PREFETCH) {	2344	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2345	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2346	if (my $map = find $k) {
		2347	$map->load if $v;
		2348	}
		2349
1462	my $path = delete $MAP_PREFETCH{$key};	2350	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2351	}
1468	Coro::schedule;	2352	}
		2353	undef $MAP_PREFETCHER;
1469	}	2354	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2355	$MAP_PREFETCHER->prio (6);
1484		2356
1485	()	2357	()
		2358	}
		2359
		2360	# common code, used by both ->save and ->swapout
		2361	sub _save {
		2362	my ($self) = @_;
		2363
		2364	$self->{last_save} = $cf::RUNTIME;
		2365
		2366	return unless $self->dirty;
		2367
		2368	my $save = $self->save_path; utf8::encode $save;
		2369	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2370
		2371	$self->{load_path} = $save;
		2372
		2373	return if $self->{deny_save};
		2374
		2375	local $self->{last_access} = $self->last_access;#d#
		2376
		2377	cf::async {
		2378	$Coro::current->{desc} = "map player save";
		2379	$_->contr->save for $self->players;
		2380	};
		2381
		2382	cf::get_slot 0.02;
		2383
		2384	if ($uniq) {
		2385	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2386	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2387	} else {
		2388	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2389	}
1486	}	2390	}
1487		2391
1488	sub save {	2392	sub save {
1489	my ($self) = @_;	2393	my ($self) = @_;
1490		2394
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2395	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2396
1493	$self->{last_save} = $cf::RUNTIME;	2397	$self->_save;
1494
1495	return unless $self->dirty;
1496
1497	my $save = $self->{path}->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1499
1500	$self->{load_path} = $save;
1501
1502	return if $self->{deny_save};
1503
1504	local $self->{last_access} = $self->last_access;#d#
1505
1506	cf::async {
1507	$_->contr->save for $self->players;
1508	};
1509
1510	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}
1516	}	2398	}
1517		2399
1518	sub swap_out {	2400	sub swap_out {
1519	my ($self) = @_;	2401	my ($self) = @_;
1520		2402
1521	# save first because save cedes
1522	$self->save;
1523
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2403	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2404
		2405	return if !$self->linkable;
		2406	return if $self->{deny_save};
1526	return if $self->players;	2407	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};
1529		2408
		2409	# first deactivate the map and "unlink" it from the core
		2410	$self->deactivate;
		2411	$_->clear_links_to ($self) for values %cf::MAP;
		2412	$self->state (cf::MAP_SWAPPED);
		2413
		2414	# then atomically save
		2415	$self->_save;
		2416
		2417	# then free the map
1530	$self->clear;	2418	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2419	}
1533		2420
1534	sub reset_at {	2421	sub reset_at {
1535	my ($self) = @_;	2422	my ($self) = @_;
1536		2423
1537	# TODO: safety, remove and allow resettable per-player maps	2424	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2425	return 1e99 if $self->{deny_reset};
1540		2426
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2427	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2428	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2429
…		…
1548	my ($self) = @_;	2434	my ($self) = @_;
1549		2435
1550	$self->reset_at <= $cf::RUNTIME	2436	$self->reset_at <= $cf::RUNTIME
1551	}	2437	}
1552		2438
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2439	sub reset {
1575	my ($self) = @_;	2440	my ($self) = @_;
1576		2441
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2442	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2443
1579	return if $self->players;	2444	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2445
1582	warn "resetting map ", $self->path;#d#	2446	cf::trace "resetting map ", $self->path, "\n";
		2447
		2448	$self->state (cf::MAP_SWAPPED);
		2449
		2450	# need to save uniques path
		2451	unless ($self->{deny_save}) {
		2452	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2453
		2454	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2455	if $uniq;
		2456	}
1583		2457
1584	delete $cf::MAP{$self->path};	2458	delete $cf::MAP{$self->path};
1585		2459
		2460	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2461	$_->clear_links_to ($self) for values %cf::MAP;
		2462	$self->clear;
1587		2463
1588	$self->unlink_save;	2464	$self->unlink_save;
1589	$self->destroy;	2465	$self->destroy;
1590	}	2466	}
1591		2467
1592	my $nuke_counter = "aaaa";	2468	my $nuke_counter = "aaaa";
1593		2469
1594	sub nuke {	2470	sub nuke {
1595	my ($self) = @_;	2471	my ($self) = @_;
1596		2472
		2473	{
		2474	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2475
		2476	delete $cf::MAP{$self->path};
		2477
		2478	$self->unlink_save;
		2479
		2480	bless $self, "cf::map::wrap";
		2481	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2482	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2483	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2484	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2485
		2486	$cf::MAP{$self->path} = $self;
		2487	}
		2488
1600	$self->reset; # polite request, might not happen	2489	$self->reset; # polite request, might not happen
1601	}	2490	}
1602		2491
1603	sub customise_for {	2492	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2493
1606	if ($map->per_player) {	2494	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2495	maps. May block.
		2496
		2497	=cut
		2498
		2499	sub tmp_maps() {
1608	}	2500	[
		2501	map {
		2502	utf8::decode $_;
		2503	/\.map$/
		2504	? normalise $_
		2505	: ()
		2506	} @{ aio_readdir $TMPDIR or [] }
		2507	]
		2508	}
1609		2509
1610	$map	2510	=item $maps = cf::map::random_maps
		2511
		2512	Returns an arrayref with all map paths of currently instantiated and saved
		2513	random maps. May block.
		2514
		2515	=cut
		2516
		2517	sub random_maps() {
		2518	[
		2519	map {
		2520	utf8::decode $_;
		2521	/\.map$/
		2522	? normalise "?random/$_"
		2523	: ()
		2524	} @{ aio_readdir $RANDOMDIR or [] }
		2525	]
1611	}	2526	}
1612		2527
1613	=item cf::map::unique_maps	2528	=item cf::map::unique_maps
1614		2529
1615	Returns an arrayref of cf::path's of all shared maps that have	2530	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2531	instantiated unique items. May block.
1617		2532
1618	=cut	2533	=cut
1619		2534
1620	sub unique_maps() {	2535	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2536	[
1622	or return;	2537	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2538	utf8::decode $_;
1628	next if /\.pst$/;	2539	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2540	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2541	? ()
1631	push @paths, new cf::path $_;	2542	: normalise $_
		2543	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2544	]
1633
1634	\@paths
1635	}	2545	}
1636		2546
1637	package cf;	2547	=item cf::map::static_maps
		2548
		2549	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2550	file in the shared directory excluding F</styles> and F</editor>). May
		2551	block.
		2552
		2553	=cut
		2554
		2555	sub static_maps() {
		2556	my @dirs = "";
		2557	my @maps;
		2558
		2559	while (@dirs) {
		2560	my $dir = shift @dirs;
		2561
		2562	next if $dir eq "/styles" || $dir eq "/editor";
		2563
		2564	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2565	or return;
		2566
		2567	for (@$files) {
		2568	s/\.map$// or next;
		2569	utf8::decode $_;
		2570	push @maps, "$dir/$_";
		2571	}
		2572
		2573	push @dirs, map "$dir/$_", @$dirs;
		2574	}
		2575
		2576	\@maps
		2577	}
1638		2578
1639	=back	2579	=back
1640		2580
1641	=head3 cf::object	2581	=head3 cf::object
1642		2582
…		…
1646		2586
1647	=over 4	2587	=over 4
1648		2588
1649	=item $ob->inv_recursive	2589	=item $ob->inv_recursive
1650		2590
1651	Returns the inventory of the object _and_ their inventories, recursively.	2591	Returns the inventory of the object I<and> their inventories, recursively,
		2592	but I<not> the object itself.
1652		2593
1653	=cut	2594	=cut
1654		2595
1655	sub inv_recursive_;	2596	sub inv_recursive_;
1656	sub inv_recursive_ {	2597	sub inv_recursive_ {
…		…
1659		2600
1660	sub inv_recursive {	2601	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2602	inv_recursive_ inv $_[0]
1662	}	2603	}
1663		2604
		2605	=item $ref = $ob->ref
		2606
		2607	Creates and returns a persistent reference to an object that can be stored as a string.
		2608
		2609	=item $ob = cf::object::deref ($refstring)
		2610
		2611	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2612	even if the object actually exists. May block.
		2613
		2614	=cut
		2615
		2616	sub deref {
		2617	my ($ref) = @_;
		2618
		2619	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2620	my ($uuid, $name) = ($1, $2);
		2621	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2622	or return;
		2623	$pl->ob->uuid eq $uuid
		2624	or return;
		2625
		2626	$pl->ob
		2627	} else {
		2628	warn "$ref: cannot resolve object reference\n";
		2629	undef
		2630	}
		2631	}
		2632
1664	package cf;	2633	package cf;
1665		2634
1666	=back	2635	=back
1667		2636
1668	=head3 cf::object::player	2637	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2643	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2644	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2645	dialogue with the given NPC character.
1677		2646
1678	=cut	2647	=cut
		2648
		2649	our $SAY_CHANNEL = {
		2650	id => "say",
		2651	title => "Map",
		2652	reply => "say ",
		2653	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2654	};
		2655
		2656	our $CHAT_CHANNEL = {
		2657	id => "chat",
		2658	title => "Chat",
		2659	reply => "chat ",
		2660	tooltip => "Player chat and shouts, global to the server.",
		2661	};
1679		2662
1680	# rough implementation of a future "reply" method that works	2663	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2664	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2665	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2666	sub cf::object::player::reply($$$;$) {
…		…
1685		2668
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2669	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2670
1688	if ($self->{record_replies}) {	2671	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2672	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2673
1690	} else {	2674	} else {
		2675	my $pl = $self->contr;
		2676
		2677	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2678	my $dialog = $pl->{npc_dialog};
		2679	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2680
		2681	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2682	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2683	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2684	}
1693	}	2685	}
		2686	}
		2687
		2688	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2689
		2690	=cut
		2691
		2692	sub cf::object::send_msg {
		2693	my $pl = shift->contr
		2694	or return;
		2695	$pl->send_msg (@_);
1694	}	2696	}
1695		2697
1696	=item $player_object->may ("access")	2698	=item $player_object->may ("access")
1697		2699
1698	Returns wether the given player is authorized to access resource "access"	2700	Returns wether the given player is authorized to access resource "access"
…		…
1711		2713
1712	=item $player_object->enter_link	2714	=item $player_object->enter_link
1713		2715
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2716	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2717
1716	The player should be reaosnably safe there for short amounts of time. You	2718	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2719	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2720	though, as the player cannot control the character while it is on the link
		2721	map.
		2722
		2723	Will never block.
1718		2724
1719	=item $player_object->leave_link ($map, $x, $y)	2725	=item $player_object->leave_link ($map, $x, $y)
1720		2726
1721	Moves the player out of the specila link map onto the given map. If the	2727	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2728	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2729	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2730	fails, to the emergency map position.
1725		2731
1726	Might block.	2732	Might block.
1727		2733
1728	=cut	2734	=cut
		2735
		2736	sub link_map {
		2737	unless ($LINK_MAP) {
		2738	$LINK_MAP = cf::map::find "{link}"
		2739	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2740	$LINK_MAP->load;
		2741	}
		2742
		2743	$LINK_MAP
		2744	}
1729		2745
1730	sub cf::object::player::enter_link {	2746	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2747	my ($self) = @_;
1732		2748
1733	$self->deactivate_recursive;	2749	$self->deactivate_recursive;
1734		2750
1735	return if $self->map == $LINK_MAP;	2751	++$self->{_link_recursion};
		2752
		2753	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2754
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2755	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2756	if $self->map && $self->map->{path} ne "{link}";
1739		2757
1740	$self->enter_map ($LINK_MAP, 20, 20);	2758	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1741	}	2759	}
1742		2760
1743	sub cf::object::player::leave_link {	2761	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2762	my ($self, $map, $x, $y) = @_;
		2763
		2764	return unless $self->contr->active;
1745		2765
1746	my $link_pos = delete $self->{_link_pos};	2766	my $link_pos = delete $self->{_link_pos};
1747		2767
1748	unless ($map) {	2768	unless ($map) {
1749	# restore original map position	2769	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2780	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2781	unless (defined $x) && (defined $y);
1762		2782
1763	# use -1 or undef as default coordinates, not 0, 0	2783	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2784	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2785	if $x <= 0 && $y <= 0;
1766		2786
1767	$map->load;	2787	$map->load;
1768	$map->load_diag;
1769		2788
1770	return unless $self->contr->active;	2789	return unless $self->contr->active;
		2790
		2791	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2792	if ($self->enter_map ($map, $x, $y)) {
		2793	# entering was successful
		2794	delete $self->{_link_recursion};
		2795	# only activate afterwards, to support waiting in hooks
1771	$self->activate_recursive;	2796	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}
1774
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},	2797	}
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2798
1789	# try to abort aborted map switching on player login :)	2799	}
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2800
1807	=item $player_object->goto ($path, $x, $y)	2801	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1808		2802
		2803	Moves the player to the given map-path and coordinates by first freezing
		2804	her, loading and preparing them map, calling the provided $check callback
		2805	that has to return the map if sucecssful, and then unfreezes the player on
		2806	the new (success) or old (failed) map position. In either case, $done will
		2807	be called at the end of this process.
		2808
		2809	Note that $check will be called with a potentially non-loaded map, so if
		2810	it needs a loaded map it has to call C<< ->load >>.
		2811
1809	=cut	2812	=cut
		2813
		2814	our $GOTOGEN;
1810		2815
1811	sub cf::object::player::goto {	2816	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2817	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2818
1814	$path = new cf::path $path;	2819	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2820	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2821	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2822	($path, $x, $y) = @$EMERGENCY_POSITION;
		2823	}
		2824
		2825	# do generation counting so two concurrent goto's will be executed in-order
		2826	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2827
1816	$self->enter_link;	2828	$self->enter_link;
1817		2829
1818	(async {	2830	(async {
1819	my $map = cf::map::find $path->as_string;	2831	$Coro::current->{desc} = "player::goto $path $x $y";
		2832
		2833	# *tag paths override both path and x|y
		2834	if ($path =~ /^\*(.*)$/) {
		2835	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2836	my $ob = $obs[rand @obs];
		2837
		2838	# see if we actually can go there
		2839	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2840	$ob = $obs[rand @obs];
		2841	} else {
		2842	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2843	}
		2844	# else put us there anyways for now #d#
		2845
		2846	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2847	} else {
		2848	($path, $x, $y) = (undef, undef, undef);
		2849	}
		2850	}
		2851
		2852	my $map = eval {
		2853	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2854
		2855	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2856	$map = $map->customise_for ($self);
1821		2857	$map = $check->($map, $x, $y, $self) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2858	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2859	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2860	}
1826		2861
		2862	$map
		2863	};
		2864
		2865	if ($@) {
		2866	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2867	LOG llevError | logBacktrace, Carp::longmess $@;
		2868	}
		2869
		2870	if ($gen == $self->{_goto_generation}) {
		2871	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2872	$self->leave_link ($map, $x, $y);
		2873	}
		2874
		2875	$done->($self) if $done;
1828	})->prio (1);	2876	})->prio (1);
1829	}	2877	}
1830		2878
1831	=item $player_object->enter_exit ($exit_object)	2879	=item $player_object->enter_exit ($exit_object)
1832		2880
…		…
1834		2882
1835	sub parse_random_map_params {	2883	sub parse_random_map_params {
1836	my ($spec) = @_;	2884	my ($spec) = @_;
1837		2885
1838	my $rmp = { # defaults	2886	my $rmp = { # defaults
1839	xsize => 10,	2887	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2888	ysize => (cf::rndm 15, 40),
		2889	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2890	#layout => string,
1841	};	2891	};
1842		2892
1843	for (split /\n/, $spec) {	2893	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2894	my ($k, $v) = split /\s+/, $_, 2;
1845		2895
…		…
1857	# that depends on the exit object	2907	# that depends on the exit object
1858		2908
1859	my $rmp = parse_random_map_params $exit->msg;	2909	my $rmp = parse_random_map_params $exit->msg;
1860		2910
1861	if ($exit->map) {	2911	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2912	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2913	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2914	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2915	$rmp->{origin_y} = $exit->y;
		2916
		2917	$exit->map->touch;
1866	}	2918	}
1867		2919
1868	$rmp->{random_seed} ||= $exit->random_seed;	2920	$rmp->{random_seed} ||= $exit->random_seed;
1869		2921
1870	my $data = cf::to_json $rmp;	2922	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1871	my $md5 = Digest::MD5::md5_hex $data;	2923	my $md5 = Digest::MD5::md5_hex $data;
		2924	my $meta = "$RANDOMDIR/$md5.meta";
1872		2925
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2926	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2927	aio_write $fh, 0, (length $data), $data, 0;
		2928	undef $fh;
		2929	aio_rename "$meta~", $meta;
1875		2930
		2931	my $slaying = "?random/$md5";
		2932
		2933	if ($exit->valid) {
1876	$exit->slaying ("?random/$md5");	2934	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2935	$exit->msg (undef);
		2936	}
1878	}	2937	}
1879	}	2938	}
1880		2939
1881	sub cf::object::player::enter_exit {	2940	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2941	my ($self, $exit) = @_;
…		…
1884	return unless $self->type == cf::PLAYER;	2943	return unless $self->type == cf::PLAYER;
1885		2944
1886	$self->enter_link;	2945	$self->enter_link;
1887		2946
1888	(async {	2947	(async {
1889	$self->deactivate_recursive; # just to be sure	2948	$Coro::current->{desc} = "enter_exit";
		2949
1890	unless (eval {	2950	unless (eval {
		2951	$self->deactivate_recursive; # just to be sure
		2952
		2953	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2954	my $x = $exit->stats->hp;
		2955	my $y = $exit->stats->sp;
		2956
		2957	# special map handling
		2958	my $slaying = $exit->slaying;
		2959
		2960	# special map handling
		2961	if ($slaying eq "/!") {
		2962	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2963
1891	prepare_random_map $exit	2964	prepare_random_map $exit
		2965	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2966
1892	if $exit->slaying eq "/!";	2967	$map = $exit->slaying;
1893		2968
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2969	} elsif ($slaying eq '!up') {
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2970	$map = $exit->map->tile_path (cf::TILE_UP);
		2971	$x = $exit->x;
		2972	$y = $exit->y;
1896		2973
		2974	} elsif ($slaying eq '!down') {
		2975	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2976	$x = $exit->x;
		2977	$y = $exit->y;
		2978	}
		2979
		2980	$self->goto ($map, $x, $y);
		2981
		2982	# if exit is damned, update players death & WoR home-position
		2983	$self->contr->savebed ($map, $x, $y)
		2984	if $exit->flag (cf::FLAG_DAMNED);
		2985
1897	1;	2986	1
1898	}) {	2987	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2988	$self->message ("Something went wrong deep within the deliantra server. "
1900	. "I'll try to bring you back to the map you were before. "	2989	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2990	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2991	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2992
1904	warn "ERROR in enter_exit: $@";	2993	error "ERROR in enter_exit: $@";
1905	$self->leave_link;	2994	$self->leave_link;
1906	}	2995	}
1907	})->prio (1);	2996	})->prio (1);
1908	}	2997	}
1909		2998
…		…
1920		3009
1921	sub cf::client::send_drawinfo {	3010	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	3011	my ($self, $text, $flags) = @_;
1923		3012
1924	utf8::encode $text;	3013	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3014	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	3015	}
1927		3016
		3017	=item $client->send_big_packet ($pkt)
		3018
		3019	Like C<send_packet>, but tries to compress large packets, and fragments
		3020	them as required.
		3021
		3022	=cut
		3023
		3024	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3025
		3026	sub cf::client::send_big_packet {
		3027	my ($self, $pkt) = @_;
		3028
		3029	# try lzf for large packets
		3030	$pkt = "lzf " . Compress::LZF::compress $pkt
		3031	if 1024 <= length $pkt and $self->{can_lzf};
		3032
		3033	# split very large packets
		3034	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3035	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3036	$pkt = "frag";
		3037	}
		3038
		3039	$self->send_packet ($pkt);
		3040	}
		3041
		3042	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3043
		3044	Send a drawinfo or msg packet to the client, formatting the msg for the
		3045	client if neccessary. C<$type> should be a string identifying the type of
		3046	the message, with C<log> being the default. If C<$color> is negative, suppress
		3047	the message unless the client supports the msg packet.
		3048
		3049	=cut
		3050
		3051	# non-persistent channels (usually the info channel)
		3052	our %CHANNEL = (
		3053	"c/motd" => {
		3054	id => "infobox",
		3055	title => "MOTD",
		3056	reply => undef,
		3057	tooltip => "The message of the day",
		3058	},
		3059	"c/identify" => {
		3060	id => "infobox",
		3061	title => "Identify",
		3062	reply => undef,
		3063	tooltip => "Items recently identified",
		3064	},
		3065	"c/examine" => {
		3066	id => "infobox",
		3067	title => "Examine",
		3068	reply => undef,
		3069	tooltip => "Signs and other items you examined",
		3070	},
		3071	"c/shopinfo" => {
		3072	id => "infobox",
		3073	title => "Shop Info",
		3074	reply => undef,
		3075	tooltip => "What your bargaining skill tells you about the shop",
		3076	},
		3077	"c/book" => {
		3078	id => "infobox",
		3079	title => "Book",
		3080	reply => undef,
		3081	tooltip => "The contents of a note or book",
		3082	},
		3083	"c/lookat" => {
		3084	id => "infobox",
		3085	title => "Look",
		3086	reply => undef,
		3087	tooltip => "What you saw there",
		3088	},
		3089	"c/who" => {
		3090	id => "infobox",
		3091	title => "Players",
		3092	reply => undef,
		3093	tooltip => "Shows players who are currently online",
		3094	},
		3095	"c/body" => {
		3096	id => "infobox",
		3097	title => "Body Parts",
		3098	reply => undef,
		3099	tooltip => "Shows which body parts you posess and are available",
		3100	},
		3101	"c/statistics" => {
		3102	id => "infobox",
		3103	title => "Statistics",
		3104	reply => undef,
		3105	tooltip => "Shows your primary statistics",
		3106	},
		3107	"c/skills" => {
		3108	id => "infobox",
		3109	title => "Skills",
		3110	reply => undef,
		3111	tooltip => "Shows your experience per skill and item power",
		3112	},
		3113	"c/shopitems" => {
		3114	id => "infobox",
		3115	title => "Shop Items",
		3116	reply => undef,
		3117	tooltip => "Shows the items currently for sale in this shop",
		3118	},
		3119	"c/resistances" => {
		3120	id => "infobox",
		3121	title => "Resistances",
		3122	reply => undef,
		3123	tooltip => "Shows your resistances",
		3124	},
		3125	"c/pets" => {
		3126	id => "infobox",
		3127	title => "Pets",
		3128	reply => undef,
		3129	tooltip => "Shows information abotu your pets/a specific pet",
		3130	},
		3131	"c/perceiveself" => {
		3132	id => "infobox",
		3133	title => "Perceive Self",
		3134	reply => undef,
		3135	tooltip => "You gained detailed knowledge about yourself",
		3136	},
		3137	"c/uptime" => {
		3138	id => "infobox",
		3139	title => "Uptime",
		3140	reply => undef,
		3141	tooltip => "How long the server has been running since last restart",
		3142	},
		3143	"c/mapinfo" => {
		3144	id => "infobox",
		3145	title => "Map Info",
		3146	reply => undef,
		3147	tooltip => "Information related to the maps",
		3148	},
		3149	"c/party" => {
		3150	id => "party",
		3151	title => "Party",
		3152	reply => "gsay ",
		3153	tooltip => "Messages and chat related to your party",
		3154	},
		3155	"c/death" => {
		3156	id => "death",
		3157	title => "Death",
		3158	reply => undef,
		3159	tooltip => "Reason for and more info about your most recent death",
		3160	},
		3161	"c/say" => $SAY_CHANNEL,
		3162	"c/chat" => $CHAT_CHANNEL,
		3163	);
		3164
		3165	sub cf::client::send_msg {
		3166	my ($self, $channel, $msg, $color, @extra) = @_;
		3167
		3168	$msg = $self->pl->expand_cfpod ($msg)
		3169	unless $color & cf::NDI_VERBATIM;
		3170
		3171	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3172
		3173	# check predefined channels, for the benefit of C
		3174	if ($CHANNEL{$channel}) {
		3175	$channel = $CHANNEL{$channel};
		3176
		3177	$self->ext_msg (channel_info => $channel);
		3178	$channel = $channel->{id};
		3179
		3180	} elsif (ref $channel) {
		3181	# send meta info to client, if not yet sent
		3182	unless (exists $self->{channel}{$channel->{id}}) {
		3183	$self->{channel}{$channel->{id}} = $channel;
		3184	$self->ext_msg (channel_info => $channel);
		3185	}
		3186
		3187	$channel = $channel->{id};
		3188	}
		3189
		3190	return unless @extra || length $msg;
		3191
		3192	# default colour, mask it out
		3193	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3194	if $color & cf::NDI_DEF;
		3195
		3196	my $pkt = "msg "
		3197	. $self->{json_coder}->encode (
		3198	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3199	);
		3200
		3201	$self->send_big_packet ($pkt);
		3202	}
		3203
		3204	=item $client->ext_msg ($type, @msg)
		3205
		3206	Sends an ext event to the client.
		3207
		3208	=cut
		3209
		3210	sub cf::client::ext_msg($$@) {
		3211	my ($self, $type, @msg) = @_;
		3212
		3213	if ($self->extcmd == 2) {
		3214	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3215	} elsif ($self->extcmd == 1) { # TODO: remove
		3216	push @msg, msgtype => "event_$type";
		3217	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3218	}
		3219	}
		3220
		3221	=item $client->ext_reply ($msgid, @msg)
		3222
		3223	Sends an ext reply to the client.
		3224
		3225	=cut
		3226
		3227	sub cf::client::ext_reply($$@) {
		3228	my ($self, $id, @msg) = @_;
		3229
		3230	return unless $self->extcmd == 2;
		3231
		3232	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3233	}
1928		3234
1929	=item $success = $client->query ($flags, "text", \&cb)	3235	=item $success = $client->query ($flags, "text", \&cb)
1930		3236
1931	Queues a query to the client, calling the given callback with	3237	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3238	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3239	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		3240
1935	Queries can fail, so check the return code. Or don't, as queries will become	3241	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	3242	become reliable at some point in the future.
1937		3243
1938	=cut	3244	=cut
1939		3245
1940	sub cf::client::query {	3246	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	3247	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	3255	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3256	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		3257
1952	$self->send_packet ($self->{query_queue}[0][0])	3258	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	3259	if @{ $self->{query_queue} } == 1;
		3260
		3261	1
1954	}	3262	}
1955		3263
1956	cf::client->attach (	3264	cf::client->attach (
		3265	on_connect => sub {
		3266	my ($ns) = @_;
		3267
		3268	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3269	},
1957	on_reply => sub {	3270	on_reply => sub {
1958	my ($ns, $msg) = @_;	3271	my ($ns, $msg) = @_;
1959		3272
1960	# this weird shuffling is so that direct followup queries	3273	# this weird shuffling is so that direct followup queries
1961	# get handled first	3274	# get handled first
1962	my $queue = delete $ns->{query_queue}	3275	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	3276	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		3277
1965	(shift @$queue)->[1]->($msg);	3278	(shift @$queue)->[1]->($msg);
		3279	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		3280
1967	push @{ $ns->{query_queue} }, @$queue;	3281	push @{ $ns->{query_queue} }, @$queue;
1968		3282
1969	if (@{ $ns->{query_queue} } == @$queue) {	3283	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	3284	if (@$queue) {
…		…
1972	} else {	3286	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3287	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	3288	}
1975	}	3289	}
1976	},	3290	},
		3291	on_exticmd => sub {
		3292	my ($ns, $buf) = @_;
		3293
		3294	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3295
		3296	if (ref $msg) {
		3297	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3298
		3299	my @reply;
		3300
		3301	if (my $cb = $EXTICMD{$type}) {
		3302	@reply = $cb->($ns, @payload);
		3303	}
		3304
		3305	$ns->ext_reply ($reply, @reply)
		3306	if $reply;
		3307
		3308	} else {
		3309	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3310	}
		3311
		3312	cf::override;
		3313	},
1977	);	3314	);
1978		3315
1979	=item $client->async (\&cb)	3316	=item $client->async (\&cb)
1980		3317
1981	Create a new coroutine, running the specified callback. The coroutine will	3318	Create a new coroutine, running the specified callback. The coroutine will
…		…
1997		3334
1998	$coro	3335	$coro
1999	}	3336	}
2000		3337
2001	cf::client->attach (	3338	cf::client->attach (
2002	on_destroy => sub {	3339	on_client_destroy => sub {
2003	my ($ns) = @_;	3340	my ($ns) = @_;
2004		3341
2005	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3342	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2006	},	3343	},
2007	);	3344	);
…		…
2022	our $safe = new Safe "safe";	3359	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3360	our $safe_hole = new Safe::Hole;
2024		3361
2025	$SIG{FPE} = 'IGNORE';	3362	$SIG{FPE} = 'IGNORE';
2026		3363
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3364	$safe->permit_only (Opcode::opset qw(
		3365	:base_core :base_mem :base_orig :base_math :base_loop
		3366	grepstart grepwhile mapstart mapwhile
		3367	sort time
		3368	));
2028		3369
2029	# here we export the classes and methods available to script code	3370	# here we export the classes and methods available to script code
2030		3371
2031	=pod	3372	=pod
2032		3373
2033	The following fucntions and emthods are available within a safe environment:	3374	The following functions and methods are available within a safe environment:
2034		3375
2035	cf::object contr pay_amount pay_player map	3376	cf::object
		3377	contr pay_amount pay_player map x y force_find force_add destroy
		3378	insert remove name archname title slaying race decrease split
		3379	value
		3380
2036	cf::object::player player	3381	cf::object::player
2037	cf::player peaceful	3382	player
2038	cf::map trigger	3383
		3384	cf::player
		3385	peaceful
		3386
		3387	cf::map
		3388	trigger
2039		3389
2040	=cut	3390	=cut
2041		3391
2042	for (	3392	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3393	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3394	insert remove inv nrof name archname title slaying race
		3395	decrease split destroy change_exp value msg lore send_msg)],
2044	["cf::object::player" => qw(player)],	3396	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3397	["cf::player" => qw(peaceful send_msg)],
2046	["cf::map" => qw(trigger)],	3398	["cf::map" => qw(trigger)],
2047	) {	3399	) {
2048	no strict 'refs';
2049	my ($pkg, @funs) = @$_;	3400	my ($pkg, @funs) = @$_;
2050	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3401	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2051	for @funs;	3402	for @funs;
2052	}	3403	}
2053		3404
…		…
2068		3419
2069	my $qcode = $code;	3420	my $qcode = $code;
2070	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3421	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2071	$qcode =~ s/\n/\\n/g;	3422	$qcode =~ s/\n/\\n/g;
2072		3423
		3424	%vars = (_dummy => 0) unless %vars;
		3425
		3426	my @res;
2073	local $_;	3427	local $_;
2074	local @safe::cf::_safe_eval_args = values %vars;
2075		3428
2076	my $eval =	3429	my $eval =
2077	"do {\n"	3430	"do {\n"
2078	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3431	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2079	. "#line 0 \"{$qcode}\"\n"	3432	. "#line 0 \"{$qcode}\"\n"
2080	. $code	3433	. $code
2081	. "\n}"	3434	. "\n}"
2082	;	3435	;
2083		3436
		3437	if ($CFG{safe_eval}) {
2084	sub_generation_inc;	3438	sub_generation_inc;
		3439	local @safe::cf::_safe_eval_args = values %vars;
2085	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3440	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2086	sub_generation_inc;	3441	sub_generation_inc;
		3442	} else {
		3443	local @cf::_safe_eval_args = values %vars;
		3444	@res = wantarray ? eval eval : scalar eval $eval;
		3445	}
2087		3446
2088	if ($@) {	3447	if ($@) {
2089	warn "$@";	3448	warn "$@",
2090	warn "while executing safe code '$code'\n";	3449	"while executing safe code '$code'\n",
2091	warn "with arguments " . (join " ", %vars) . "\n";	3450	"with arguments " . (join " ", %vars) . "\n";
2092	}	3451	}
2093		3452
2094	wantarray ? @res : $res[0]	3453	wantarray ? @res : $res[0]
2095	}	3454	}
2096		3455
…		…
2110	=cut	3469	=cut
2111		3470
2112	sub register_script_function {	3471	sub register_script_function {
2113	my ($fun, $cb) = @_;	3472	my ($fun, $cb) = @_;
2114		3473
2115	no strict 'refs';	3474	$fun = "safe::$fun" if $CFG{safe_eval};
2116	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3475	*$fun = $safe_hole->wrap ($cb);
2117	}	3476	}
2118		3477
2119	=back	3478	=back
2120		3479
2121	=cut	3480	=cut
2122		3481
2123	#############################################################################	3482	#############################################################################
		3483	# the server's init and main functions
2124		3484
2125	=head2 EXTENSION DATABASE SUPPORT	3485	sub load_facedata($) {
		3486	my ($path) = @_;
2126		3487
2127	Crossfire maintains a very simple database for extension use. It can	3488	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3489	# for this (global event?)
2129	excludes objects.	3490	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3491
2131	The parameter C<$family> should best start with the name of the extension	3492	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3493
2134	=over 4	3494	trace "loading facedata from $path\n";
2135		3495
2136	=item $hashref = cf::db_get $family	3496	my $facedata = decode_storable load_file $path;
2137		3497
2138	Return a hashref for use by the extension C<$family>, which can be	3498	$facedata->{version} == 2
2139	modified. After modifications, you have to call C<cf::db_dirty> or	3499	or cf::cleanup "$path: version mismatch, cannot proceed.";
2140	C<cf::db_sync>.
2141		3500
2142	=item $value = cf::db_get $family => $key	3501	# patch in the exptable
2143		3502	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2144	Returns a single value from the database	3503	$facedata->{resource}{"res/exp_table"} = {
2145		3504	type => FT_RSRC,
2146	=item cf::db_put $family => $hashref	3505	data => $exp_table,
2147		3506	hash => (Digest::MD5::md5 $exp_table),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3507	};
		3508	cf::cede_to_tick;
2197		3509
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3510	{
		3511	my $faces = $facedata->{faceinfo};
2202		3512
2203	sub db_get($;$) {	3513	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3514	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		3515
2209	sub db_put($$;$) {	3516	cf::face::set_visibility $idx, $info->{visibility};
2210	if (@_ >= 3) {	3517	cf::face::set_magicmap $idx, $info->{magicmap};
2211	$DB->{$_[0]}{$_[1]} = $_[2];	3518	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2212	} else {	3519	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2213	$DB->{$_[0]} = $_[1];	3520	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2214	}
2215	db_dirty;
2216	}
2217		3521
2218	cf::global->attach (	3522	cf::cede_to_tick;
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3523	}
2223	);
2224	}
2225		3524
2226	#############################################################################	3525	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3526	next unless $info->{smooth};
2228		3527
2229	sub cfg_load {	3528	my $idx = cf::face::find $face
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3529	or next;
2231	or return;
2232		3530
2233	local $/;	3531	if (my $smooth = cf::face::find $info->{smooth}) {
2234	*CFG = YAML::Syck::Load <$fh>;	3532	cf::face::set_smooth $idx, $smooth;
		3533	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3534	} else {
		3535	error "smooth face '$info->{smooth}' not found for face '$face'";
		3536	}
2235		3537
		3538	cf::cede_to_tick;
		3539	}
		3540	}
		3541
		3542	{
		3543	my $anims = $facedata->{animinfo};
		3544
		3545	while (my ($anim, $info) = each %$anims) {
		3546	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3547	cf::cede_to_tick;
		3548	}
		3549
		3550	cf::anim::invalidate_all; # d'oh
		3551	}
		3552
		3553	{
		3554	my $res = $facedata->{resource};
		3555
		3556	while (my ($name, $info) = each %$res) {
		3557	if (defined (my $type = $info->{type})) {
		3558	# TODO: different hash - must free and use new index, or cache ixface data queue
		3559	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3560
		3561	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3562	cf::face::set_type $idx, $type;
		3563	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3564	} else {
		3565	# $RESOURCE{$name} = $info; # unused
		3566	}
		3567
		3568	cf::cede_to_tick;
		3569	}
		3570	}
		3571
		3572	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3573
		3574	1
		3575	}
		3576
		3577	register_exticmd fx_want => sub {
		3578	my ($ns, $want) = @_;
		3579
		3580	while (my ($k, $v) = each %$want) {
		3581	$ns->fx_want ($k, $v);
		3582	}
		3583	};
		3584
		3585	sub load_resource_file($) {
		3586	my $guard = lock_acquire "load_resource_file";
		3587
		3588	my $status = load_resource_file_ $_[0];
		3589	get_slot 0.1, 100;
		3590	cf::arch::commit_load;
		3591
		3592	$status
		3593	}
		3594
		3595	sub reload_regions {
		3596	# HACK to clear player env face cache, we need some signal framework
		3597	# for this (global event?)
		3598	%ext::player_env::MUSIC_FACE_CACHE = ();
		3599
		3600	load_resource_file "$MAPDIR/regions"
		3601	or die "unable to load regions file\n";
		3602
		3603	for (cf::region::list) {
		3604	$_->{match} = qr/$_->{match}/
		3605	if exists $_->{match};
		3606	}
		3607	}
		3608
		3609	sub reload_facedata {
		3610	load_facedata "$DATADIR/facedata"
		3611	or die "unable to load facedata\n";
		3612	}
		3613
		3614	sub reload_archetypes {
		3615	load_resource_file "$DATADIR/archetypes"
		3616	or die "unable to load archetypes\n";
		3617	}
		3618
		3619	sub reload_treasures {
		3620	load_resource_file "$DATADIR/treasures"
		3621	or die "unable to load treasurelists\n";
		3622	}
		3623
		3624	sub reload_sound {
		3625	trace "loading sound config from $DATADIR/sound\n";
		3626
		3627	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3628
		3629	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3630	my $sound = $soundconf->{compat}[$_]
		3631	or next;
		3632
		3633	my $face = cf::face::find "sound/$sound->[1]";
		3634	cf::sound::set $sound->[0] => $face;
		3635	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3636	}
		3637
		3638	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3639	my $face = cf::face::find "sound/$v";
		3640	cf::sound::set $k => $face;
		3641	}
		3642	}
		3643
		3644	sub reload_resources {
		3645	trace "reloading resource files...\n";
		3646
		3647	reload_exp_table;
		3648	reload_materials;
		3649	reload_facedata;
		3650	reload_sound;
		3651	reload_archetypes;
		3652	reload_regions;
		3653	reload_treasures;
		3654
		3655	trace "finished reloading resource files\n";
		3656	}
		3657
		3658	sub reload_config {
		3659	trace "reloading config file...\n";
		3660
		3661	my $config = load_file "$CONFDIR/config";
		3662	utf8::decode $config;
		3663	*CFG = decode_yaml $config;
		3664
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3665	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2237		3666
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3667	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3668	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2240		3669
2241	if (exists $CFG{mlockall}) {	3670	if (exists $CFG{mlockall}) {
…		…
2245	};	3674	};
2246	warn $@ if $@;	3675	warn $@ if $@;
2247	}	3676	}
2248	}	3677	}
2249		3678
		3679	sub pidfile() {
		3680	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3681	or die "$PIDFILE: $!";
		3682	flock $fh, &Fcntl::LOCK_EX
		3683	or die "$PIDFILE: flock: $!";
		3684	$fh
		3685	}
		3686
		3687	# make sure only one server instance is running at any one time
		3688	sub atomic {
		3689	my $fh = pidfile;
		3690
		3691	my $pid = <$fh>;
		3692	kill 9, $pid if $pid > 0;
		3693
		3694	seek $fh, 0, 0;
		3695	print $fh $$;
		3696	}
		3697
		3698	sub main_loop {
		3699	trace "EV::loop starting\n";
		3700	if (1) {
		3701	EV::loop;
		3702	}
		3703	trace "EV::loop returned\n";
		3704	goto &main_loop unless $REALLY_UNLOOP;
		3705	}
		3706
2250	sub main {	3707	sub main {
		3708	cf::init_globals; # initialise logging
		3709
		3710	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3711	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3712	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3713	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3714
		3715	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3716
2251	# we must not ever block the main coroutine	3717	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3718	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3719	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3720	(async {
		3721	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3722	EV::loop EV::LOOP_ONESHOT;
		3723	})->prio (Coro::PRIO_MAX);
2255	};	3724	};
2256		3725
2257	cfg_load;	3726	evthread_start IO::AIO::poll_fileno;
2258	db_load;	3727
		3728	cf::sync_job {
		3729	cf::incloader::init ();
		3730
		3731	cf::init_anim;
		3732	cf::init_attackmess;
		3733	cf::init_dynamic;
		3734
		3735	cf::load_settings;
		3736
		3737	reload_resources;
		3738	reload_config;
		3739	db_init;
		3740
		3741	cf::init_uuid;
		3742	cf::init_signals;
		3743	cf::init_skills;
		3744
		3745	cf::init_beforeplay;
		3746
		3747	atomic;
		3748
2259	load_extensions;	3749	load_extensions;
2260	Event::loop;	3750
		3751	utime time, time, $RUNTIMEFILE;
		3752
		3753	# no (long-running) fork's whatsoever before this point(!)
		3754	use POSIX ();
		3755	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3756
		3757	cf::_post_init 0;
		3758	};
		3759
		3760	cf::object::thawer::errors_are_fatal 0;
		3761	info "parse errors in files are no longer fatal from this point on.\n";
		3762
		3763	AE::postpone {
		3764	undef &main; # free gobs of memory :)
		3765	};
		3766
		3767	goto &main_loop;
2261	}	3768	}
2262		3769
2263	#############################################################################	3770	#############################################################################
2264	# initialisation and cleanup	3771	# initialisation and cleanup
2265		3772
2266	# install some emergency cleanup handlers	3773	# install some emergency cleanup handlers
2267	BEGIN {	3774	BEGIN {
		3775	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3776	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3777	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3778	cf::cleanup "SIG$signal";
2274	},
2275	);	3779	};
		3780	}
		3781	}
		3782
		3783	sub write_runtime_sync {
		3784	my $t0 = AE::time;
		3785
		3786	# first touch the runtime file to show we are still running:
		3787	# the fsync below can take a very very long time.
		3788
		3789	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3790
		3791	my $guard = cf::lock_acquire "write_runtime";
		3792
		3793	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3794	or return;
		3795
		3796	my $value = $cf::RUNTIME + 90 + 10;
		3797	# 10 is the runtime save interval, for a monotonic clock
		3798	# 60 allows for the watchdog to kill the server.
		3799
		3800	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3801	and return;
		3802
		3803	# always fsync - this file is important
		3804	aio_fsync $fh
		3805	and return;
		3806
		3807	# touch it again to show we are up-to-date
		3808	aio_utime $fh, undef, undef;
		3809
		3810	close $fh
		3811	or return;
		3812
		3813	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3814	and return;
		3815
		3816	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3817
2276	}	3818	1
		3819	}
		3820
		3821	our $uuid_lock;
		3822	our $uuid_skip;
		3823
		3824	sub write_uuid_sync($) {
		3825	$uuid_skip ||= $_[0];
		3826
		3827	return if $uuid_lock;
		3828	local $uuid_lock = 1;
		3829
		3830	my $uuid = "$LOCALDIR/uuid";
		3831
		3832	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3833	or return;
		3834
		3835	my $value = uuid_seq uuid_cur;
		3836
		3837	unless ($value) {
		3838	info "cowardly refusing to write zero uuid value!\n";
		3839	return;
		3840	}
		3841
		3842	my $value = uuid_str $value + $uuid_skip;
		3843	$uuid_skip = 0;
		3844
		3845	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3846	and return;
		3847
		3848	# always fsync - this file is important
		3849	aio_fsync $fh
		3850	and return;
		3851
		3852	close $fh
		3853	or return;
		3854
		3855	aio_rename "$uuid~", $uuid
		3856	and return;
		3857
		3858	trace "uuid file written ($value).\n";
		3859
		3860	1
		3861
		3862	}
		3863
		3864	sub write_uuid($$) {
		3865	my ($skip, $sync) = @_;
		3866
		3867	$sync ? write_uuid_sync $skip
		3868	: async { write_uuid_sync $skip };
2277	}	3869	}
2278		3870
2279	sub emergency_save() {	3871	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3872	my $freeze_guard = cf::freeze_mainloop;
2281		3873
2282	warn "enter emergency perl save\n";	3874	info "emergency_perl_save: enter\n";
		3875
		3876	# this is a trade-off: we want to be very quick here, so
		3877	# save all maps without fsync, and later call a global sync
		3878	# (which in turn might be very very slow)
		3879	local $USE_FSYNC = 0;
2283		3880
2284	cf::sync_job {	3881	cf::sync_job {
		3882	cf::write_runtime_sync; # external watchdog should not bark
		3883
2285	# use a peculiar iteration method to avoid tripping on perl	3884	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3885	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3886	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3887	info "emergency_perl_save: begin player save\n";
2289	for my $login (keys %cf::PLAYER) {	3888	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3889	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3890	$pl->valid or next;
		3891	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3892	$pl->save;
2293	}	3893	}
2294	warn "end emergency player save\n";	3894	info "emergency_perl_save: end player save\n";
2295		3895
2296	warn "begin emergency map save\n";	3896	cf::write_runtime_sync; # external watchdog should not bark
		3897
		3898	info "emergency_perl_save: begin map save\n";
2297	for my $path (keys %cf::MAP) {	3899	for my $path (keys %cf::MAP) {
2298	my $map = $cf::MAP{$path} or next;	3900	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3901	$map->valid or next;
2300	$map->save;	3902	$map->save;
2301	}	3903	}
2302	warn "end emergency map save\n";	3904	info "emergency_perl_save: end map save\n";
		3905
		3906	cf::write_runtime_sync; # external watchdog should not bark
		3907
		3908	info "emergency_perl_save: begin database checkpoint\n";
		3909	BDB::db_env_txn_checkpoint $DB_ENV;
		3910	info "emergency_perl_save: end database checkpoint\n";
		3911
		3912	info "emergency_perl_save: begin write uuid\n";
		3913	write_uuid_sync 1;
		3914	info "emergency_perl_save: end write uuid\n";
		3915
		3916	cf::write_runtime_sync; # external watchdog should not bark
		3917
		3918	trace "emergency_perl_save: syncing database to disk";
		3919	BDB::db_env_txn_checkpoint $DB_ENV;
		3920
		3921	info "emergency_perl_save: starting sync\n";
		3922	IO::AIO::aio_sync sub {
		3923	info "emergency_perl_save: finished sync\n";
		3924	};
		3925
		3926	cf::write_runtime_sync; # external watchdog should not bark
		3927
		3928	trace "emergency_perl_save: flushing outstanding aio requests";
		3929	while (IO::AIO::nreqs || BDB::nreqs) {
		3930	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3931	}
		3932
		3933	cf::write_runtime_sync; # external watchdog should not bark
2303	};	3934	};
2304		3935
2305	warn "leave emergency perl save\n";	3936	info "emergency_perl_save: leave\n";
2306	}	3937	}
2307		3938
		3939	sub post_cleanup {
		3940	my ($make_core) = @_;
		3941
		3942	IO::AIO::flush;
		3943
		3944	error Carp::longmess "post_cleanup backtrace"
		3945	if $make_core;
		3946
		3947	my $fh = pidfile;
		3948	unlink $PIDFILE if <$fh> == $$;
		3949	}
		3950
		3951	# a safer delete_package, copied from Symbol
		3952	sub clear_package($) {
		3953	my $pkg = shift;
		3954
		3955	# expand to full symbol table name if needed
		3956	unless ($pkg =~ /^main::.*::$/) {
		3957	$pkg = "main$pkg" if $pkg =~ /^::/;
		3958	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3959	$pkg .= '::' unless $pkg =~ /::$/;
		3960	}
		3961
		3962	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3963	my $stem_symtab = *{$stem}{HASH};
		3964
		3965	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3966	or return;
		3967
		3968	# clear all symbols
		3969	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3970	for my $name (keys %$leaf_symtab) {
		3971	_gv_clear *{"$pkg$name"};
		3972	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3973	}
		3974	}
		3975
2308	sub reload() {	3976	sub do_reload_perl() {
2309	# can/must only be called in main	3977	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3978	unless (in_main) {
2311	warn "can only reload from main coroutine\n";	3979	error "can only reload from main coroutine";
2312	return;	3980	return;
2313	}	3981	}
2314		3982
2315	warn "reloading...";	3983	return if $RELOAD++;
2316		3984
2317	warn "freezing server";	3985	my $t1 = AE::time;
2318	my $guard = freeze_mainloop;	3986
		3987	while ($RELOAD) {
		3988	cf::get_slot 0.1, -1, "reload_perl";
		3989	info "perl_reload: reloading...";
		3990
		3991	trace "perl_reload: entering sync_job";
		3992
		3993	cf::sync_job {
2319	cf::emergency_save;	3994	#cf::emergency_save;
2320		3995
2321	warn "sync database to disk";	3996	trace "perl_reload: cancelling all extension coros";
2322	cf::db_sync;
2323	IO::AIO::flush;
2324
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved
2327
2328	warn "cancel all watchers";
2329	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}
2332
2333	warn "cancel all extension coros";
2334	$_->cancel for values %EXT_CORO;	3997	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3998	%EXT_CORO = ();
2336		3999
2337	warn "remove commands";	4000	trace "perl_reload: removing commands";
2338	%COMMAND = ();	4001	%COMMAND = ();
2339		4002
2340	warn "remove ext commands";	4003	trace "perl_reload: removing ext/exti commands";
2341	%EXTCMD = ();	4004	%EXTCMD = ();
		4005	%EXTICMD = ();
2342		4006
2343	warn "unload/nuke all extensions";	4007	trace "perl_reload: unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	4008	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	4009	trace "... unloading $pkg";
2346		4010
2347	if (my $cb = $pkg->can ("unload")) {	4011	if (my $cb = $pkg->can ("unload")) {
2348	eval {	4012	eval {
2349	$cb->($pkg);	4013	$cb->($pkg);
2350	1	4014	1
2351	} or warn "$pkg unloaded, but with errors: $@";	4015	} or error "$pkg unloaded, but with errors: $@";
		4016	}
		4017
		4018	trace "... clearing $pkg";
		4019	clear_package $pkg;
2352	}	4020	}
2353		4021
2354	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;
2356	}
2357
2358	warn "unload all perl modules loaded from $LIBDIR";	4022	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	4023	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4024	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		4025
2362	warn "removing <$k>";	4026	trace "... unloading $k";
2363	delete $INC{$k};	4027	delete $INC{$k};
2364		4028
2365	$k =~ s/\.pm$//;	4029	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	4030	$k =~ s/\//::/g;
2367		4031
2368	if (my $cb = $k->can ("unload_module")) {	4032	if (my $cb = $k->can ("unload_module")) {
2369	$cb->();	4033	$cb->();
		4034	}
		4035
		4036	clear_package $k;
2370	}	4037	}
2371		4038
2372	Symbol::delete_package $k;
2373	}
2374
2375	warn "get rid of safe::, as good as possible";	4039	trace "perl_reload: getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	4040	clear_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4041	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		4042
2379	warn "unload cf.pm \"a bit\"";	4043	trace "perl_reload: unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	4044	delete $INC{"cf.pm"};
		4045	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2381		4046
2382	# don't, removes xs symbols, too,	4047	# don't, removes xs symbols, too,
2383	# and global variables created in xs	4048	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	4049	#clear_package __PACKAGE__;
2385		4050
2386	warn "reloading cf.pm";	4051	info "perl_reload: unload completed, starting to reload now";
		4052
		4053	trace "perl_reload: reloading cf.pm";
2387	require cf;	4054	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4055	cf::_connect_to_perl_1;
2389		4056
2390	warn "load config and database again";	4057	trace "perl_reload: loading config and database again";
2391	cf::cfg_load;	4058	cf::reload_config;
2392	cf::db_load;
2393		4059
2394	warn "load extensions";	4060	trace "perl_reload: loading extensions";
2395	cf::load_extensions;	4061	cf::load_extensions;
2396		4062
		4063	if ($REATTACH_ON_RELOAD) {
2397	warn "reattach attachments to objects/players";	4064	trace "perl_reload: reattaching attachments to objects/players";
2398	_global_reattach;	4065	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	4066	trace "perl_reload: reattaching attachments to maps";
2400	reattach $_ for values %MAP;	4067	reattach $_ for values %MAP;
		4068	trace "perl_reload: reattaching attachments to players";
		4069	reattach $_ for values %PLAYER;
		4070	}
		4071
		4072	cf::_post_init 1;
		4073
		4074	trace "perl_reload: leaving sync_job";
		4075
		4076	1
		4077	} or do {
		4078	error $@;
		4079	cf::cleanup "perl_reload: error, exiting.";
		4080	};
		4081
		4082	--$RELOAD;
		4083	}
		4084
		4085	$t1 = AE::time - $t1;
		4086	info "perl_reload: completed in ${t1}s\n";
		4087	};
		4088
		4089	our $RELOAD_WATCHER; # used only during reload
		4090
		4091	sub reload_perl() {
		4092	# doing reload synchronously and two reloads happen back-to-back,
		4093	# coro crashes during coro_state_free->destroy here.
		4094
		4095	$RELOAD_WATCHER ||= cf::async {
		4096	Coro::AIO::aio_wait cache_extensions;
		4097
		4098	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4099	do_reload_perl;
		4100	undef $RELOAD_WATCHER;
		4101	};
2401	};	4102	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408
2409	warn "reloaded";
2410	};
2411
2412	#############################################################################
2413
2414	unless ($LINK_MAP) {
2415	$LINK_MAP = cf::map::new;
2416
2417	$LINK_MAP->width (41);
2418	$LINK_MAP->height (41);
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	4103	}
2454		4104
2455	register_command "reload" => sub {	4105	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	4106	my ($who, $arg) = @_;
2457		4107
2458	if ($who->flag (FLAG_WIZ)) {	4108	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	4109	$who->message ("reloading server.");
		4110	async {
		4111	$Coro::current->{desc} = "perl_reload";
		4112	reload_perl;
		4113	};
2462	}	4114	}
2463	};	4115	};
2464		4116
2465	unshift @INC, $LIBDIR;	4117	#############################################################################
2466		4118
2467	$TICK_WATCHER = Event->timer (	4119	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		4120
2475	cf::server_tick; # one server iteration	4121	sub wait_for_tick() {
2476	$RUNTIME += $TICK;	4122	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2477	$NEXT_TICK += $TICK;
2478		4123
		4124	$WAIT_FOR_TICK->wait;
		4125	}
		4126
		4127	sub wait_for_tick_begin() {
		4128	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4129
		4130	my $signal = new Coro::Signal;
		4131	push @WAIT_FOR_TICK_BEGIN, $signal;
		4132	$signal->wait;
		4133	}
		4134
		4135	sub tick {
		4136	if ($Coro::current != $Coro::main) {
		4137	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4138	unless ++$bug_warning > 10;
		4139	return;
		4140	}
		4141
		4142	cf::one_tick; # one server iteration
		4143
		4144	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4145
		4146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4147	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4148	Coro::async_pool {
		4149	$Coro::current->{desc} = "runtime saver";
		4150	write_runtime_sync
		4151	or error "ERROR: unable to write runtime file: $!";
		4152	};
		4153	}
		4154
		4155	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4156	$sig->send;
		4157	}
2479	$WAIT_FOR_TICK->broadcast;	4158	$WAIT_FOR_TICK->broadcast;
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2481		4159
2482	# if we are delayed by four ticks or more, skip them all	4160	$LOAD = ($NOW - $TICK_START) / $TICK;
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4161	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2484		4162
2485	$TICK_WATCHER->at ($NEXT_TICK);	4163	if (0) {
2486	$TICK_WATCHER->start;	4164	if ($NEXT_TICK) {
		4165	my $jitter = $TICK_START - $NEXT_TICK;
		4166	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4167	debug "jitter $JITTER\n";#d#
		4168	}
2487	},	4169	}
2488	);	4170	}
2489		4171
		4172	{
		4173	# configure BDB
		4174
		4175	BDB::min_parallel 16;
		4176	BDB::max_poll_reqs $TICK * 0.1;
		4177	#$AnyEvent::BDB::WATCHER->priority (1);
		4178
		4179	unless ($DB_ENV) {
		4180	$DB_ENV = BDB::db_env_create;
		4181	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4182	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4183	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4184	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4185	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4186
		4187	cf::sync_job {
		4188	eval {
		4189	BDB::db_env_open
		4190	$DB_ENV,
		4191	$BDBDIR,
		4192	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4193	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4194	0666;
		4195
		4196	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4197	};
		4198
		4199	cf::cleanup "db_env_open(db): $@" if $@;
		4200	};
		4201	}
		4202
		4203	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4204	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4205	};
		4206	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4207	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4208	};
		4209	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4210	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4211	};
		4212	}
		4213
		4214	{
		4215	# configure IO::AIO
		4216
		4217	IO::AIO::min_parallel 8;
2490	IO::AIO::max_poll_time $TICK * 0.2;	4218	IO::AIO::max_poll_time $TICK * 0.1;
		4219	undef $AnyEvent::AIO::WATCHER;
		4220	}
2491		4221
2492	Event->io (	4222	our $_log_backtrace;
2493	fd => IO::AIO::poll_fileno,	4223	our $_log_backtrace_last;
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499		4224
2500	Event->timer (	4225	sub _log_backtrace {
2501	data => WF_AUTOCANCEL,	4226	my ($msg, @addr) = @_;
2502	after => 0,	4227
2503	interval => 10,	4228	$msg =~ s/\n$//;
2504	cb => sub {	4229
2505	(Coro::unblock_sub {	4230	if ($_log_backtrace_last eq $msg) {
2506	write_runtime	4231	LOG llevInfo, "[ABT] $msg\n";
2507	or warn "ERROR: unable to write runtime file: $!";	4232	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4233	# limit the # of concurrent backtraces
		4234	} elsif ($_log_backtrace < 2) {
		4235	$_log_backtrace_last = $msg;
		4236	++$_log_backtrace;
		4237	my $perl_bt = Carp::longmess $msg;
		4238	async {
		4239	$Coro::current->{desc} = "abt $msg";
		4240
		4241	my @bt = fork_call {
		4242	@addr = map { sprintf "%x", $_ } @addr;
		4243	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4244	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4245	or die "addr2line: $!";
		4246
		4247	my @funcs;
		4248	my @res = <$fh>;
		4249	chomp for @res;
		4250	while (@res) {
		4251	my ($func, $line) = splice @res, 0, 2, ();
		4252	push @funcs, "[$func] $line";
		4253	}
		4254
		4255	@funcs
		4256	};
		4257
		4258	LOG llevInfo, "[ABT] $perl_bt\n";
		4259	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4260	LOG llevInfo, "[ABT] $_\n" for @bt;
		4261	--$_log_backtrace;
2508	})->();	4262	};
		4263	} else {
		4264	LOG llevInfo, "[ABT] $msg\n";
		4265	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2509	},	4266	}
2510	);	4267	}
		4268
		4269	# load additional modules
		4270	require "cf/$_.pm" for @EXTRA_MODULES;
		4271	cf::_connect_to_perl_2;
2511		4272
2512	END { cf::emergency_save }	4273	END { cf::emergency_save }
2513		4274
2514	1	4275	1
2515		4276

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