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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.186 by root, Sat Jan 20 01:12:39 2007 UTC vs.
Revision 1.598 by root, Sun Nov 11 02:38:10 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 AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.4 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
20	use Data::Dumper;	59	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	60	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	61	use YAML::XS ();
25	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
26		65
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
		67
		68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		81
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		83
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	84	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		85
36	our %COMMAND = ();	86	our %COMMAND = ();
37	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
38		88
39	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
43		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	98	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
46		101
47	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	103
49	our $AIO_POLL_WATCHER;	104	our $DATADIR = datadir;
50	our $WRITE_RUNTIME_WATCHER;	105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
52	our $NOW;	144	our $NOW;
53		145
54	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
55		147	our (%MAP, %MAP_LOADING ); # all maps
56	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;
58
59	our %PLAYER; # all users
60	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		149
67	# used to convert map paths into valid unix filenames by replacing / by ∕	150	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		152
		153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		154	our $LOADAVG; # same thing, but with alpha-smoothing
		155	our $JITTER; # average jitter
		156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
70	binmode STDOUT;	166	binmode STDOUT;
71	binmode STDERR;	167	binmode STDERR;
72		168
73	# read virtual server time, if available	169	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
78	}	174	}
79		175
80	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	177
82	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		180
86	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
87		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
88	#############################################################################	189	#############################################################################
89		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
90	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
91		203
92	=over 4	204	=over 4
93		205
94	=item $cf::UPTIME	206	=item $cf::UPTIME
95		207
96	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
		220
		221	=item $cf::TICK
		222
		223	The interval between each server tick, in seconds.
97		224
98	=item $cf::RUNTIME	225	=item $cf::RUNTIME
99		226
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	227	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	228	every server tick.
102		229
103	=item $cf::LIBDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		233
105	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		236	unique-items directory, player file directory, random maps directory and
		237	database environment.
107		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
108	=item $cf::NOW	245	=item $cf::LOAD
109		246
110	The time of the last (current) server tick.	247	The raw value load value from the last tick.
111
112	=item $cf::TICK
113
114	The interval between server ticks, in seconds.
115		248
116	=item %cf::CFG	249	=item %cf::CFG
117		250
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	252	from wherever your confdir points to.
120		253
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		255
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	returns directly I<after> the tick processing (and consequently, can only wake one thread
125	processing has been done. Call C<< ->wait >> on them to maximise the	258	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	259
		260	Note that cf::Wait_for_tick will immediately return when the server is not
		261	ticking, making it suitable for small pauses in threads that need to run
		262	when the server is paused. If that is not applicable (i.e. you I<really>
		263	want to wait, use C<$cf::WAIT_FOR_TICK>).
		264
		265	=item $cf::WAIT_FOR_TICK
		266
		267	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		268	variable contains a L<Coro::Signal> that is broadcats after every server
		269	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		270	next server tick.
		271
		272	=cut
		273
		274	sub wait_for_tick();
		275	sub wait_for_tick_begin();
		276
		277	=item @cf::INVOKE_RESULTS
		278
		279	This array contains the results of the last C<invoke ()> call. When
		280	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		281	that call.
		282
		283	=item %cf::REFLECT
		284
		285	Contains, for each (C++) class name, a hash reference with information
		286	about object members (methods, scalars, arrays and flags) and other
		287	metadata, which is useful for introspection.
127		288
128	=back	289	=back
129		290
130	=cut	291	=cut
131		292
132	BEGIN {	293	sub error(@) { LOG llevError, join "", @_ }
133	*CORE::GLOBAL::warn = sub {	294	sub warn (@) { LOG llevWarn , join "", @_ }
		295	sub info (@) { LOG llevInfo , join "", @_ }
		296	sub debug(@) { LOG llevDebug, join "", @_ }
		297	sub trace(@) { LOG llevTrace, join "", @_ }
		298
		299	$Coro::State::WARNHOOK = sub {
134	my $msg = join "", @_;	300	my $msg = join "", @_;
135	utf8::encode $msg;
136		301
137	$msg .= "\n"	302	$msg .= "\n"
138	unless $msg =~ /\n$/;	303	unless $msg =~ /\n$/;
139		304
		305	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		306
140	LOG llevError, $msg;	307	LOG llevWarn, $msg;
141	};	308	};
142	}	309
		310	$Coro::State::DIEHOOK = sub {
		311	return unless $^S eq 0; # "eq", not "=="
		312
		313	error Carp::longmess $_[0];
		314
		315	if (in_main) {#d#
		316	error "DIEHOOK called in main context, Coro bug?\n";#d#
		317	return;#d#
		318	}#d#
		319
		320	# kill coroutine otherwise
		321	Coro::terminate
		322	};
143		323
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	324	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	325	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	326	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	327	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	328	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		329	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	330	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		331
151	# we bless all objects into (empty) derived classes to force a method lookup	332	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	333	# within the Safe compartment.
153	for my $pkg (qw(	334	for my $pkg (qw(
154	cf::global cf::attachable	335	cf::global cf::attachable
155	cf::object cf::object::player	336	cf::object cf::object::player
156	cf::client cf::player	337	cf::client cf::player
157	cf::arch cf::living	338	cf::arch cf::living
		339	cf::map cf::mapspace
158	cf::map cf::party cf::region	340	cf::party cf::region
159	)) {	341	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	342	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	343	}
163		344
164	$Event::DIED = sub {	345	$EV::DIED = sub {
165	warn "error in event callback: @_";	346	warn "error in event callback: $@";
166	};	347	};
		348
		349	#############################################################################
		350
		351	sub fork_call(&@);
		352	sub get_slot($;$$);
		353
		354	#############################################################################
167		355
168	=head2 UTILITY FUNCTIONS	356	=head2 UTILITY FUNCTIONS
169		357
170	=over 4	358	=over 4
171		359
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	378	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	379	$d
192	} || "[unable to dump $_[0]: '$@']";	380	} || "[unable to dump $_[0]: '$@']";
193	}	381	}
194		382
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	383	=item $scalar = cf::load_file $path
196		384
		385	Loads the given file from path and returns its contents. Croaks on error
		386	and can block.
		387
		388	=cut
		389
		390	sub load_file($) {
		391	0 <= aio_load $_[0], my $data
		392	or Carp::croak "$_[0]: $!";
		393
		394	$data
		395	}
		396
		397	=item $success = cf::replace_file $path, $data, $sync
		398
		399	Atomically replaces the file at the given $path with new $data, and
		400	optionally $sync the data to disk before replacing the file.
		401
		402	=cut
		403
		404	sub replace_file($$;$) {
		405	my ($path, $data, $sync) = @_;
		406
		407	my $lock = cf::lock_acquire ("replace_file:$path");
		408
		409	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		410	or return;
		411
		412	$data = $data->() if ref $data;
		413
		414	length $data == aio_write $fh, 0, (length $data), $data, 0
		415	or return;
		416
		417	!$sync
		418	or !aio_fsync $fh
		419	or return;
		420
		421	aio_close $fh
		422	and return;
		423
		424	aio_rename "$path~", $path
		425	and return;
		426
		427	if ($sync) {
		428	$path =~ s%/[^/]*$%%;
		429	aio_pathsync $path;
		430	}
		431
		432	1
		433	}
		434
197	=item $ref = cf::from_json $json	435	=item $ref = cf::decode_json $json
198		436
199	Converts a JSON string into the corresponding perl data structure.	437	Converts a JSON string into the corresponding perl data structure.
200		438
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	439	=item $json = cf::encode_json $ref
209		440
210	Converts a perl data structure into its JSON representation.	441	Converts a perl data structure into its JSON representation.
211		442
212	=cut	443	=cut
213		444
214	sub to_json($) {	445	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	446
216	JSON::Syck::Dump $_[0]	447	sub encode_json($) { $json_coder->encode ($_[0]) }
		448	sub decode_json($) { $json_coder->decode ($_[0]) }
		449
		450	=item $ref = cf::decode_storable $scalar
		451
		452	Same as Coro::Storable::thaw, so blocks.
		453
		454	=cut
		455
		456	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		457
		458	=item $ref = cf::decode_yaml $scalar
		459
		460	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		461
		462	=cut
		463
		464	sub decode_yaml($) {
		465	fork_call { YAML::XS::Load $_[0] } @_
		466	}
		467
		468	=item $scalar = cf::unlzf $scalar
		469
		470	Same as Compress::LZF::compress, but takes server ticks into account, so
		471	blocks.
		472
		473	=cut
		474
		475	sub unlzf($) {
		476	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		477	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		478	Compress::LZF::decompress $_[0]
		479	}
		480
		481	=item cf::post_init { BLOCK }
		482
		483	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		484	but I<before> the server starts ticking again.
		485
		486	The codeblock will have a single boolean argument to indicate whether this
		487	is a reload or not.
		488
		489	=cut
		490
		491	sub post_init(&) {
		492	push @POST_INIT, shift;
		493	}
		494
		495	sub _post_init {
		496	trace "running post_init jobs";
		497
		498	# run them in parallel...
		499
		500	my @join;
		501
		502	while () {
		503	push @join, map &Coro::async ($_, 0), @POST_INIT;
		504	@POST_INIT = ();
		505
		506	@join or last;
		507
		508	(pop @join)->join;
		509	}
217	}	510	}
218		511
219	=item cf::lock_wait $string	512	=item cf::lock_wait $string
220		513
221	Wait until the given lock is available. See cf::lock_acquire.	514	Wait until the given lock is available. See cf::lock_acquire.
222		515
223	=item my $lock = cf::lock_acquire $string	516	=item my $lock = cf::lock_acquire $string
224		517
225	Wait until the given lock is available and then acquires it and returns	518	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	519	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	520	for example when the coroutine gets canceled), the lock is automatically
228	returned.	521	returned.
229		522
		523	Locks are *not* recursive, locking from the same coro twice results in a
		524	deadlocked coro.
		525
230	Lock names should begin with a unique identifier (for example, cf::map::find	526	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	527	uses map_find and cf::map::load uses map_load).
232		528
233	=cut	529	=item $locked = cf::lock_active $string
234		530
235	our %LOCK;	531	Return true if the lock is currently active, i.e. somebody has locked it.
		532
		533	=cut
		534
		535	our $LOCKS = new Coro::SemaphoreSet;
236		536
237	sub lock_wait($) {	537	sub lock_wait($) {
238	my ($key) = @_;	538	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	539	}
246		540
247	sub lock_acquire($) {	541	sub lock_acquire($) {
248	my ($key) = @_;	542	$LOCKS->guard ($_[0])
		543	}
249		544
250	# wait, to be sure we are not locked	545	sub lock_active($) {
251	lock_wait $key;	546	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	547	}
260		548
261	sub freeze_mainloop {	549	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	550	tick_inhibit_inc;
263		551
264	my $guard = Coro::guard {	552	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	553	}
266	$WRITE_RUNTIME_WATCHER->start;	554
		555	=item cf::periodic $interval, $cb
		556
		557	Like EV::periodic, but randomly selects a starting point so that the actions
		558	get spread over time.
		559
		560	=cut
		561
		562	sub periodic($$) {
		563	my ($interval, $cb) = @_;
		564
		565	my $start = rand List::Util::min 180, $interval;
		566
		567	EV::periodic $start, $interval, 0, $cb
		568	}
		569
		570	=item cf::get_slot $time[, $priority[, $name]]
		571
		572	Allocate $time seconds of blocking CPU time at priority C<$priority>
		573	(default: 0): This call blocks and returns only when you have at least
		574	C<$time> seconds of cpu time till the next tick. The slot is only valid
		575	till the next cede.
		576
		577	Background jobs should use a priority les than zero, interactive jobs
		578	should use 100 or more.
		579
		580	The optional C<$name> can be used to identify the job to run. It might be
		581	used for statistical purposes and should identify the same time-class.
		582
		583	Useful for short background jobs.
		584
		585	=cut
		586
		587	our @SLOT_QUEUE;
		588	our $SLOT_QUEUE;
		589	our $SLOT_DECAY = 0.9;
		590
		591	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		592	$SLOT_QUEUE = Coro::async {
		593	$Coro::current->desc ("timeslot manager");
		594
		595	my $signal = new Coro::Signal;
		596	my $busy;
		597
		598	while () {
		599	next_job:
		600
		601	my $avail = cf::till_tick;
		602
		603	for (0 .. $#SLOT_QUEUE) {
		604	if ($SLOT_QUEUE[$_][0] <= $avail) {
		605	$busy = 0;
		606	my $job = splice @SLOT_QUEUE, $_, 1, ();
		607	$job->[2]->send;
		608	Coro::cede;
		609	goto next_job;
		610	} else {
		611	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		612	}
		613	}
		614
		615	if (@SLOT_QUEUE) {
		616	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		617	$WAIT_FOR_TICK->wait;
		618	} else {
		619	$busy = 0;
		620	Coro::schedule;
		621	}
267	};	622	}
268	$WRITE_RUNTIME_WATCHER->stop;	623	};
269	$TICK_WATCHER->stop;	624
270	$guard	625	sub get_slot($;$$) {
		626	return if tick_inhibit || $Coro::current == $Coro::main;
		627
		628	my ($time, $pri, $name) = @_;
		629
		630	$time = clamp $time, 0.01, $TICK * .6;
		631
		632	my $sig = new Coro::Signal;
		633
		634	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		635	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		636	$SLOT_QUEUE->ready;
		637	$sig->wait;
271	}	638	}
272		639
273	=item cf::async { BLOCK }	640	=item cf::async { BLOCK }
274		641
275	Currently the same as Coro::async_pool, meaning you cannot use	642	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		647
281	BEGIN { *async = \&Coro::async_pool }	648	BEGIN { *async = \&Coro::async_pool }
282		649
283	=item cf::sync_job { BLOCK }	650	=item cf::sync_job { BLOCK }
284		651
285	The design of crossfire+ requires that the main coro ($Coro::main) is	652	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	653	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	654	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		655	acceptable.
288		656
289	If it must be done, put the blocking parts into C<sync_job>. This will run	657	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	658	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	659	server will be frozen during this time, so the block should either finish
292	fast or be very important.	660	fast or be very important.
…		…
294	=cut	662	=cut
295		663
296	sub sync_job(&) {	664	sub sync_job(&) {
297	my ($job) = @_;	665	my ($job) = @_;
298		666
299	if ($Coro::current == $Coro::main) {	667	if (in_main) {
		668	my $time = AE::time;
		669
300	# this is the main coro, too bad, we have to block	670	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	671	# till the operation succeeds, freezing the server :/
302		672
303	# TODO: use suspend/resume instead	673	#LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	674
305	my $freeze_guard = freeze_mainloop;	675	my $freeze_guard = freeze_mainloop;
306		676
307	my $busy = 1;	677	my $busy = 1;
308	my @res;	678	my @res;
309		679
310	(async {	680	(async {
		681	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	682	@res = eval { $job->() };
312	warn $@ if $@;	683	error $@ if $@;
313	undef $busy;	684	undef $busy;
314	})->prio (Coro::PRIO_MAX);	685	})->prio (Coro::PRIO_MAX);
315		686
316	while ($busy) {	687	while ($busy) {
317	Coro::cede or Event::one_event;	688	if (Coro::nready) {
		689	Coro::cede_notself;
		690	} else {
		691	EV::loop EV::LOOP_ONESHOT;
318	}	692	}
		693	}
		694
		695	my $time = AE::time - $time;
		696
		697	$TICK_START += $time; # do not account sync jobs to server load
319		698
320	wantarray ? @res : $res[0]	699	wantarray ? @res : $res[0]
321	} else {	700	} else {
322	# we are in another coroutine, how wonderful, everything just works	701	# we are in another coroutine, how wonderful, everything just works
323		702
…		…
343	$EXT_CORO{$coro+0} = $coro;	722	$EXT_CORO{$coro+0} = $coro;
344		723
345	$coro	724	$coro
346	}	725	}
347		726
348	sub write_runtime {	727	=item fork_call { }, @args
349	my $runtime = cf::localdir . "/runtime";
350		728
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	729	Executes the given code block with the given arguments in a seperate
352	or return;	730	process, returning the results. Everything must be serialisable with
		731	Coro::Storable. May, of course, block. Note that the executed sub may
		732	never block itself or use any form of event handling.
353		733
354	my $value = $cf::RUNTIME + 90 + 10;	734	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		735
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	736	sub post_fork {
359	and return;	737	reset_signals;
		738	}
360		739
361	aio_fsync $fh	740	sub fork_call(&@) {
362	and return;	741	my ($cb, @args) = @_;
363		742
364	close $fh	743	# we seemingly have to make a local copy of the whole thing,
365	or return;	744	# otherwise perl prematurely frees the stuff :/
		745	# TODO: investigate and fix (likely this will be rather laborious)
366		746
367	aio_rename "$runtime~", $runtime	747	my @res = Coro::Util::fork_eval {
368	and return;	748	cf::post_fork;
		749	&$cb
		750	} @args;
369		751
		752	wantarray ? @res : $res[-1]
		753	}
		754
		755	sub objinfo {
370	1	756	(
		757	"counter value" => cf::object::object_count,
		758	"objects created" => cf::object::create_count,
		759	"objects destroyed" => cf::object::destroy_count,
		760	"freelist size" => cf::object::free_count,
		761	"allocated objects" => cf::object::objects_size,
		762	"active objects" => cf::object::actives_size,
		763	)
		764	}
		765
		766	=item $coin = coin_from_name $name
		767
		768	=cut
		769
		770	our %coin_alias = (
		771	"silver" => "silvercoin",
		772	"silvercoin" => "silvercoin",
		773	"silvercoins" => "silvercoin",
		774	"gold" => "goldcoin",
		775	"goldcoin" => "goldcoin",
		776	"goldcoins" => "goldcoin",
		777	"platinum" => "platinacoin",
		778	"platinumcoin" => "platinacoin",
		779	"platinumcoins" => "platinacoin",
		780	"platina" => "platinacoin",
		781	"platinacoin" => "platinacoin",
		782	"platinacoins" => "platinacoin",
		783	"royalty" => "royalty",
		784	"royalties" => "royalty",
		785	);
		786
		787	sub coin_from_name($) {
		788	$coin_alias{$_[0]}
		789	? cf::arch::find $coin_alias{$_[0]}
		790	: undef
		791	}
		792
		793	=item $value = cf::db_get $family => $key
		794
		795	Returns a single value from the environment database.
		796
		797	=item cf::db_put $family => $key => $value
		798
		799	Stores the given C<$value> in the family. It can currently store binary
		800	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		801
		802	=item $db = cf::db_table "name"
		803
		804	Create and/or open a new database table. The string must not be "db" and must be unique
		805	within each server.
		806
		807	=cut
		808
		809	sub db_table($) {
		810	cf::error "db_get called from main context"
		811	if $Coro::current == $Coro::main;
		812
		813	my ($name) = @_;
		814	my $db = BDB::db_create $DB_ENV;
		815
		816	eval {
		817	$db->set_flags (BDB::CHKSUM);
		818
		819	utf8::encode $name;
		820	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		821	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		822	cf::cleanup "db_open(db): $!" if $!;
		823	};
		824	cf::cleanup "db_open(db): $@" if $@;
		825
		826	$db
		827	}
		828
		829	our $DB;
		830
		831	sub db_init {
		832	$DB ||= db_table "db";
		833	}
		834
		835	sub db_get($$) {
		836	my $key = "$_[0]/$_[1]";
		837
		838	cf::error "db_get called from main context"
		839	if $Coro::current == $Coro::main;
		840
		841	BDB::db_get $DB, undef, $key, my $data;
		842
		843	$! ? ()
		844	: $data
		845	}
		846
		847	sub db_put($$$) {
		848	BDB::dbreq_pri 4;
		849	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		850	}
		851
		852	=item cf::cache $id => [$paths...], $processversion => $process
		853
		854	Generic caching function that returns the value of the resource $id,
		855	caching and regenerating as required.
		856
		857	This function can block.
		858
		859	=cut
		860
		861	sub cache {
		862	my ($id, $src, $processversion, $process) = @_;
		863
		864	my $meta =
		865	join "\x00",
		866	$processversion,
		867	map {
		868	aio_stat $_
		869	and Carp::croak "$_: $!";
		870
		871	($_, (stat _)[7,9])
		872	} @$src;
		873
		874	my $dbmeta = db_get cache => "$id/meta";
		875	if ($dbmeta ne $meta) {
		876	# changed, we may need to process
		877
		878	my @data;
		879	my $md5;
		880
		881	for (0 .. $#$src) {
		882	$data[$_] = load_file $src->[$_];
		883	}
		884
		885	# if processing is expensive, check
		886	# checksum first
		887	if (1) {
		888	$md5 =
		889	join "\x00",
		890	$processversion,
		891	map {
		892	cf::cede_to_tick;
		893	($src->[$_], Digest::MD5::md5_hex $data[$_])
		894	} 0.. $#$src;
		895
		896
		897	my $dbmd5 = db_get cache => "$id/md5";
		898	if ($dbmd5 eq $md5) {
		899	db_put cache => "$id/meta", $meta;
		900
		901	return db_get cache => "$id/data";
		902	}
		903	}
		904
		905	my $t1 = EV::time;
		906	my $data = $process->(\@data);
		907	my $t2 = EV::time;
		908
		909	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		910
		911	db_put cache => "$id/data", $data;
		912	db_put cache => "$id/md5" , $md5;
		913	db_put cache => "$id/meta", $meta;
		914
		915	return $data;
		916	}
		917
		918	db_get cache => "$id/data"
		919	}
		920
		921	=item cf::datalog type => key => value, ...
		922
		923	Log a datalog packet of the given type with the given key-value pairs.
		924
		925	=cut
		926
		927	sub datalog($@) {
		928	my ($type, %kv) = @_;
		929	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	930	}
372		931
373	=back	932	=back
374		933
375	=cut	934	=cut
376		935
377	#############################################################################	936	#############################################################################
378		937
379	=head2 ATTACHABLE OBJECTS	938	=head2 ATTACHABLE OBJECTS
380		939
381	Many objects in crossfire are so-called attachable objects. That means you can	940	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	941	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	942	to it. All such attachable objects support the following methods.
384		943
385	In the following description, CLASS can be any of C<global>, C<object>	944	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	945	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	946	Deliantra).
388		947
389	=over 4	948	=over 4
390		949
391	=item $attachable->attach ($attachment, key => $value...)	950	=item $attachable->attach ($attachment, key => $value...)
392		951
…		…
436	=item cf::CLASS::attachment $name, ...	995	=item cf::CLASS::attachment $name, ...
437		996
438	Register an attachment by C<$name> through which attachable objects of the	997	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	998	given CLASS can refer to this attachment.
440		999
441	Some classes such as crossfire maps and objects can specify attachments	1000	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	1001	that are attached at load/instantiate time, thus the need for a name.
443		1002
444	These calls expect any number of the following handler/hook descriptions:	1003	These calls expect any number of the following handler/hook descriptions:
445		1004
446	=over 4	1005	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	1114	$registry = $CB_TYPE[$object_type] ||= [];
556		1115
557	} elsif ($type eq "subtype") {	1116	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	1117	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	1118	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1119	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		1120
562	} elsif ($type eq "package") {	1121	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	1122	my $pkg = shift @arg;
564		1123
565	while (my ($name, $id) = each %cb_id) {	1124	while (my ($name, $id) = each %cb_id) {
…		…
570		1129
571	} elsif (exists $cb_id{$type}) {	1130	} elsif (exists $cb_id{$type}) {
572	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1131	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
573		1132
574	} elsif (ref $type) {	1133	} elsif (ref $type) {
575	warn "attaching objects not supported, ignoring.\n";	1134	error "attaching objects not supported, ignoring.\n";
576		1135
577	} else {	1136	} else {
578	shift @arg;	1137	shift @arg;
579	warn "attach argument '$type' not supported, ignoring.\n";	1138	error "attach argument '$type' not supported, ignoring.\n";
580	}	1139	}
581	}	1140	}
582	}	1141	}
583		1142
584	sub _object_attach {	1143	sub _object_attach {
…		…
594	_attach $registry, $klass, @attach;	1153	_attach $registry, $klass, @attach;
595	}	1154	}
596		1155
597	$obj->{$name} = \%arg;	1156	$obj->{$name} = \%arg;
598	} else {	1157	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	1158	info "object uses attachment '$name' which is not available, postponing.\n";
600	}	1159	}
601		1160
602	$obj->{_attachment}{$name} = undef;	1161	$obj->{_attachment}{$name} = undef;
603	}	1162	}
604		1163
…		…
606	if (ref $_[0]) {	1165	if (ref $_[0]) {
607	_object_attach @_;	1166	_object_attach @_;
608	} else {	1167	} else {
609	_attach shift->_attach_registry, @_;	1168	_attach shift->_attach_registry, @_;
610	}	1169	}
		1170	_recalc_want;
611	};	1171	};
612		1172
613	# all those should be optimised	1173	# all those should be optimised
614	sub cf::attachable::detach {	1174	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	1175	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	1178	delete $obj->{_attachment}{$name};
619	reattach ($obj);	1179	reattach ($obj);
620	} else {	1180	} else {
621	Carp::croak "cannot, currently, detach class attachments";	1181	Carp::croak "cannot, currently, detach class attachments";
622	}	1182	}
		1183	_recalc_want;
623	};	1184	};
624		1185
625	sub cf::attachable::attached {	1186	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	1187	my ($obj, $name) = @_;
627		1188
…		…
642	";	1203	";
643	die if $@;	1204	die if $@;
644	}	1205	}
645		1206
646	our $override;	1207	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1208	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1209
649	sub override {	1210	sub override {
650	$override = 1;	1211	$override = 1;
651	@invoke_results = ();	1212	@INVOKE_RESULTS = (@_);
652	}	1213	}
653		1214
654	sub do_invoke {	1215	sub do_invoke {
655	my $event = shift;	1216	my $event = shift;
656	my $callbacks = shift;	1217	my $callbacks = shift;
657		1218
658	@invoke_results = ();	1219	@INVOKE_RESULTS = ();
659		1220
660	local $override;	1221	local $override;
661		1222
662	for (@$callbacks) {	1223	for (@$callbacks) {
663	eval { &{$_->[1]} };	1224	eval { &{$_->[1]} };
664		1225
665	if ($@) {	1226	if ($@) {
666	warn "$@";
667	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1227	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
668	override;	1228	override;
669	}	1229	}
670		1230
671	return 1 if $override;	1231	return 1 if $override;
672	}	1232	}
673		1233
674	0	1234	0
675	}	1235	}
676		1236
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1237	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1238
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1239	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1240
681	Generate an object-specific event with the given arguments.	1241	Generate an object-specific event with the given arguments.
682		1242
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1243	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1244	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1245	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1246
687	=back	1247	=back
688		1248
689	=cut	1249	=cut
690		1250
691	#############################################################################	1251	#############################################################################
692	# object support	1252	# object support
		1253
		1254	sub _object_equal($$);
		1255	sub _object_equal($$) {
		1256	my ($a, $b) = @_;
		1257
		1258	return 0 unless (ref $a) eq (ref $b);
		1259
		1260	if ("HASH" eq ref $a) {
		1261	my @ka = keys %$a;
		1262	my @kb = keys %$b;
		1263
		1264	return 0 if @ka != @kb;
		1265
		1266	for (0 .. $#ka) {
		1267	return 0 unless $ka[$_] eq $kb[$_];
		1268	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1269	}
		1270
		1271	} elsif ("ARRAY" eq ref $a) {
		1272
		1273	return 0 if @$a != @$b;
		1274
		1275	for (0 .. $#$a) {
		1276	return 0 unless _object_equal $a->[$_], $b->[$_];
		1277	}
		1278
		1279	} elsif ($a ne $b) {
		1280	return 0;
		1281	}
		1282
		1283	1
		1284	}
		1285
		1286	our $SLOW_MERGES;#d#
		1287	sub _can_merge {
		1288	my ($ob1, $ob2) = @_;
		1289
		1290	++$SLOW_MERGES;#d#
		1291
		1292	# we do the slow way here
		1293	return _object_equal $ob1, $ob2
		1294	}
693		1295
694	sub reattach {	1296	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1297	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1298	my ($obj) = @_;
697		1299
		1300	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1301	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1302
700	my $registry = $obj->registry;	1303	my $registry = $obj->registry;
701		1304
702	@$registry = ();	1305	@$registry = ();
703		1306
…		…
708	for (@$attach) {	1311	for (@$attach) {
709	my ($klass, @attach) = @$_;	1312	my ($klass, @attach) = @$_;
710	_attach $registry, $klass, @attach;	1313	_attach $registry, $klass, @attach;
711	}	1314	}
712	} else {	1315	} else {
713	warn "object uses attachment '$name' that is not available, postponing.\n";	1316	info "object uses attachment '$name' that is not available, postponing.\n";
714	}	1317	}
715	}	1318	}
716	}	1319	}
717		1320
718	cf::attachable->attach (	1321	cf::attachable->attach (
719	prio => -1000000,	1322	prio => -1000000,
720	on_instantiate => sub {	1323	on_instantiate => sub {
721	my ($obj, $data) = @_;	1324	my ($obj, $data) = @_;
722		1325
723	$data = from_json $data;	1326	$data = decode_json $data;
724		1327
725	for (@$data) {	1328	for (@$data) {
726	my ($name, $args) = @$_;	1329	my ($name, $args) = @$_;
727		1330
728	$obj->attach ($name, %{$args || {} });	1331	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1347	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1348	my ($filename, $rdata, $objs) = @_;
746		1349
747	sync_job {	1350	sync_job {
748	if (length $$rdata) {	1351	if (length $$rdata) {
		1352	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1353	trace sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1354	$decname, length $$rdata, scalar @$objs
		1355	if $VERBOSE_IO;
751		1356
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1357	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1358	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1359	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1360	if ($cf::USE_FSYNC) {
		1361	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;
755	aio_fsync $fh;	1362	aio_fsync $fh;
		1363	}
756	close $fh;	1364	aio_close $fh;
757		1365
758	if (@$objs) {	1366	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1367	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1368	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1369	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1370	aio_write $fh, 0, (length $data), $data, 0;
		1371	if ($cf::USE_FSYNC) {
		1372	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;
763	aio_fsync $fh;	1373	aio_fsync $fh;
		1374	}
764	close $fh;	1375	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1376	aio_rename "$filename.pst~", "$filename.pst";
766	}	1377	}
767	} else {	1378	} else {
768	aio_unlink "$filename.pst";	1379	aio_unlink "$filename.pst";
769	}	1380	}
770		1381
771	aio_rename "$filename~", $filename;	1382	aio_rename "$filename~", $filename;
		1383
		1384	$filename =~ s%/[^/]+$%%;
		1385	aio_pathsync $filename if $cf::USE_FSYNC;
772	} else {	1386	} else {
773	warn "FATAL: $filename~: $!\n";	1387	error "unable to save objects: $filename~: $!\n";
774	}	1388	}
775	} else {	1389	} else {
776	aio_unlink $filename;	1390	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1391	aio_unlink "$filename.pst";
778	}	1392	}
779	}	1393	};
780	}	1394	}
781		1395
782	sub object_freezer_as_string {	1396	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1397	my ($rdata, $objs) = @_;
784		1398
…		…
796	or return;	1410	or return;
797		1411
798	unless (aio_stat "$filename.pst") {	1412	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1413	(aio_load "$filename.pst", $av) >= 0
800	or return;	1414	or return;
		1415
801	$av = eval { (Storable::thaw $av)->{objs} };	1416	my $st = eval { Coro::Storable::thaw $av };
		1417	$av = $st->{objs};
802	}	1418	}
803		1419
		1420	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1421	trace sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1422	$decname, length $data, scalar @{$av || []}
		1423	if $VERBOSE_IO;
		1424
806	return ($data, $av);	1425	($data, $av)
807	}	1426	}
		1427
		1428	=head2 COMMAND CALLBACKS
		1429
		1430	=over 4
		1431
		1432	=cut
808		1433
809	#############################################################################	1434	#############################################################################
810	# command handling &c	1435	# command handling &c
811		1436
812	=item cf::register_command $name => \&callback($ob,$args);	1437	=item cf::register_command $name => \&callback($ob,$args)
813		1438
814	Register a callback for execution when the client sends the user command	1439	Register a callback for execution when the client sends the user command
815	$name.	1440	$name.
816		1441
817	=cut	1442	=cut
…		…
823	#warn "registering command '$name/$time' to '$caller'";	1448	#warn "registering command '$name/$time' to '$caller'";
824		1449
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1450	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1451	}
827		1452
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1453	=item cf::register_extcmd $name => \&callback($pl,@args)
829		1454
830	Register a callbackf ro execution when the client sends an extcmd packet.	1455	Register a callback for execution when the client sends an (synchronous)
		1456	extcmd packet. Ext commands will be processed in the order they are
		1457	received by the server, like other user commands. The first argument is
		1458	the logged-in player. Ext commands can only be processed after a player
		1459	has logged in successfully.
831		1460
832	If the callback returns something, it is sent back as if reply was being	1461	The values will be sent back to the client.
833	called.
834		1462
835	=cut	1463	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
836		1464
		1465	Same as C<cf::register_extcmd>, but instead of returning values, the
		1466	callback needs to clal the C<$reply> function.
		1467
		1468	=item cf::register_exticmd $name => \&callback($ns,@args)
		1469
		1470	Register a callback for execution when the client sends an (asynchronous)
		1471	exticmd packet. Exti commands are processed by the server as soon as they
		1472	are received, i.e. out of order w.r.t. other commands. The first argument
		1473	is a client socket. Exti commands can be received anytime, even before
		1474	log-in.
		1475
		1476	The values will be sent back to the client.
		1477
		1478	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1479
		1480	Same as C<cf::register_extcmd>, but instead of returning values, the
		1481	callback needs to clal the C<$reply> function.
		1482
		1483	=cut
		1484
837	sub register_extcmd {	1485	sub register_extcmd($$) {
838	my ($name, $cb) = @_;	1486	my ($name, $cb) = @_;
839		1487
840	$EXTCMD{$name} = $cb;	1488	$EXTCMD{$name} = $cb;
841	}	1489	}
842		1490
		1491	sub register_async_extcmd($$) {
		1492	my ($name, $cb) = @_;
		1493
		1494	$EXTACMD{$name} = $cb;
		1495	}
		1496
		1497	sub register_exticmd($$) {
		1498	my ($name, $cb) = @_;
		1499
		1500	$EXTICMD{$name} = $cb;
		1501	}
		1502
		1503	sub register_async_exticmd($$) {
		1504	my ($name, $cb) = @_;
		1505
		1506	$EXTIACMD{$name} = $cb;
		1507	}
		1508
		1509	use File::Glob ();
		1510
843	cf::player->attach (	1511	cf::player->attach (
844	on_command => sub {	1512	on_unknown_command => sub {
845	my ($pl, $name, $params) = @_;	1513	my ($pl, $name, $params) = @_;
846		1514
847	my $cb = $COMMAND{$name}	1515	my $cb = $COMMAND{$name}
848	or return;	1516	or return;
849		1517
…		…
854	cf::override;	1522	cf::override;
855	},	1523	},
856	on_extcmd => sub {	1524	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1525	my ($pl, $buf) = @_;
858		1526
859	my $msg = eval { from_json $buf };	1527	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1528
861	if (ref $msg) {	1529	if (ref $msg) {
		1530	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1531
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1532	if (my $cb = $EXTACMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1533	$cb->(
864	$pl->ext_reply ($msg->{msgid}, %reply);	1534	$pl,
		1535	sub {
		1536	$pl->ext_msg ("reply-$reply", @_)
		1537	if $reply;
		1538	},
		1539	@payload
		1540	);
		1541	} else {
		1542	my @reply;
		1543
		1544	if (my $cb = $EXTCMD{$type}) {
		1545	@reply = $cb->($pl, @payload);
865	}	1546	}
		1547
		1548	$pl->ext_msg ("reply-$reply", @reply)
		1549	if $reply;
866	}	1550	}
		1551
867	} else {	1552	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1553	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1554	}
870		1555
871	cf::override;	1556	cf::override;
872	},	1557	},
873	);	1558	);
874		1559
		1560	# "readahead" all extensions
875	sub load_extension {	1561	sub cache_extensions {
876	my ($path) = @_;	1562	my $grp = IO::AIO::aio_group;
877		1563
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1564	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
879	my $base = $1;	1565	for (grep /\.ext$/, @{$_[0]}) {
880	my $pkg = $1;	1566	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}	1567	}
903	die $@;
904	}	1568	};
905		1569
906	push @EXTS, $pkg;	1570	$grp
		1571	}
		1572
		1573	sub _ext_cfg_reg($$$$) {
		1574	my ($rvar, $varname, $cfgname, $default) = @_;
		1575
		1576	$cfgname = lc $varname
		1577	unless length $cfgname;
		1578
		1579	$EXT_CFG{$cfgname} = [$rvar, $default];
		1580
		1581	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
907	}	1582	}
908		1583
909	sub load_extensions {	1584	sub load_extensions {
		1585	info "loading extensions...";
		1586
		1587	%EXT_CFG = ();
		1588
		1589	cf::sync_job {
		1590	my %todo;
		1591
910	for my $ext (<$LIBDIR/*.ext>) {	1592	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1593	next unless -r $path;
912	eval {	1594
913	load_extension $ext;	1595	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1596	my $base = $1;
		1597	my $pkg = $1;
		1598	$pkg =~ s/[^[:word:]]/_/g;
		1599	$pkg = "ext::$pkg";
		1600
		1601	open my $fh, "<:utf8", $path
		1602	or die "$path: $!";
		1603
		1604	my $source = do { local $/; <$fh> };
		1605
		1606	my %ext = (
		1607	path => $path,
		1608	base => $base,
		1609	pkg => $pkg,
		1610	);
		1611
		1612	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1613	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1614
		1615	$ext{source} =
		1616	"package $pkg; use common::sense;\n"
		1617	. "#line 1 \"$path\"\n{\n"
		1618	. $source
		1619	. "\n};\n1";
		1620
		1621	$todo{$base} = \%ext;
		1622	}
		1623
		1624	my $pass = 0;
		1625	my %done;
		1626	while (%todo) {
		1627	my $progress;
		1628
		1629	++$pass;
		1630
		1631	ext:
		1632	while (my ($k, $v) = each %todo) {
		1633	for (split /,\s*/, $v->{meta}{depends}) {
		1634	next ext
		1635	unless exists $done{$_};
		1636	}
		1637
		1638	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1639
		1640	my $source = $v->{source};
		1641
		1642	# support "CONF varname :confname = default" pseudo-statements
		1643	$source =~ s{
		1644	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1645	}{
		1646	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1647	}gmxe;
		1648
		1649	my $active = eval $source;
		1650
		1651	if (length $@) {
		1652	error "$v->{path}: $@\n";
		1653
		1654	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1655	if exists $v->{meta}{mandatory};
		1656
		1657	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1658	delete $todo{$k};
		1659	} else {
		1660	$done{$k} = delete $todo{$k};
		1661	push @EXTS, $v->{pkg};
		1662	$progress = 1;
		1663
		1664	info "$v->{base}: extension inactive.\n"
		1665	unless $active;
		1666	}
914	1	1667	}
915	} or warn "$ext not loaded: $@";	1668
		1669	unless ($progress) {
		1670	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1671
		1672	while (my ($k, $v) = each %todo) {
		1673	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1674	if exists $v->{meta}{mandatory};
		1675	}
		1676
		1677	last;
		1678	}
		1679	}
916	}	1680	};
917	}	1681	}
918		1682
919	#############################################################################	1683	#############################################################################
920		1684
		1685	=back
		1686
921	=head2 CORE EXTENSIONS	1687	=head2 CORE EXTENSIONS
922		1688
923	Functions and methods that extend core crossfire objects.	1689	Functions and methods that extend core deliantra objects.
924		1690
925	=cut	1691	=cut
926		1692
927	package cf::player;	1693	package cf::player;
928		1694
…		…
930		1696
931	=head3 cf::player	1697	=head3 cf::player
932		1698
933	=over 4	1699	=over 4
934		1700
		1701	=item cf::player::num_playing
		1702
		1703	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1704
		1705	=cut
		1706
		1707	sub num_playing {
		1708	scalar grep
		1709	$_->ob->map
		1710	&& !$_->hidden
		1711	&& !$_->ob->flag (cf::FLAG_WIZ),
		1712	cf::player::list
		1713	}
		1714
935	=item cf::player::find $login	1715	=item cf::player::find $login
936		1716
937	Returns the given player object, loading it if necessary (might block).	1717	Returns the given player object, loading it if necessary (might block).
938		1718
939	=cut	1719	=cut
940		1720
941	sub playerdir($) {	1721	sub playerdir($) {
942	cf::localdir	1722	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1723	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1724	}
948		1725
949	sub path($) {	1726	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1727	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1728
952	(playerdir $login) . "/$login.pl"	1729	(playerdir $login) . "/playerdata"
953	}	1730	}
954		1731
955	sub find_active($) {	1732	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1733	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1734	and $cf::PLAYER{$_[0]}->active
…		…
960		1737
961	sub exists($) {	1738	sub exists($) {
962	my ($login) = @_;	1739	my ($login) = @_;
963		1740
964	$cf::PLAYER{$login}	1741	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1742	or !aio_stat path $login
966	}	1743	}
967		1744
968	sub find($) {	1745	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1746	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1747	my $login = $_[0];
971		1748
972	my $guard = cf::lock_acquire "user_find:$login";	1749	my $guard = cf::lock_acquire "user_find:$login";
973		1750
974	$cf::PLAYER{$_[0]} || do {	1751	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1752	# rename old playerfiles to new ones
		1753	#TODO: remove when no longer required
		1754	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1755	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1756	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1757	aio_unlink +(playerdir $login) . "/$login.pl";
		1758
		1759	my $f = new_from_file cf::object::thawer path $login
976	or return;	1760	or return;
		1761
		1762	my $pl = cf::player::load_pl $f
		1763	or return;
		1764
		1765	local $cf::PLAYER_LOADING{$login} = $pl;
		1766	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1767	$cf::PLAYER{$login} = $pl
978	}	1768	}
979	}	1769	}
980	}	1770	}
		1771
		1772	cf::player->attach (
		1773	on_load => sub {
		1774	my ($pl, $path) = @_;
		1775
		1776	# restore slots saved in save, below
		1777	my $slots = delete $pl->{_slots};
		1778
		1779	$pl->ob->current_weapon ($slots->[0]);
		1780	$pl->combat_ob ($slots->[1]);
		1781	$pl->ranged_ob ($slots->[2]);
		1782	},
		1783	);
981		1784
982	sub save($) {	1785	sub save($) {
983	my ($pl) = @_;	1786	my ($pl) = @_;
984		1787
985	return if $pl->{deny_save};	1788	return if $pl->{deny_save};
…		…
990	return if $pl->{deny_save};	1793	return if $pl->{deny_save};
991		1794
992	aio_mkdir playerdir $pl, 0770;	1795	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1796	$pl->{last_save} = $cf::RUNTIME;
994		1797
		1798	cf::get_slot 0.01;
		1799
		1800	# save slots, to be restored later
		1801	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1802
995	$pl->save_pl ($path);	1803	$pl->save_pl ($path);
996	Coro::cede;	1804	cf::cede_to_tick;
997	}	1805	}
998		1806
999	sub new($) {	1807	sub new($) {
1000	my ($login) = @_;	1808	my ($login) = @_;
1001		1809
…		…
1007	$cf::PLAYER{$login} = $self;	1815	$cf::PLAYER{$login} = $self;
1008		1816
1009	$self	1817	$self
1010	}	1818	}
1011		1819
		1820	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1821
		1822	=cut
		1823
		1824	sub send_msg {
		1825	my $ns = shift->ns
		1826	or return;
		1827	$ns->send_msg (@_);
		1828	}
		1829
1012	=item $pl->quit_character	1830	=item $pl->quit_character
1013		1831
1014	Nukes the player without looking back. If logged in, the connection will	1832	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1833	be destroyed. May block for a long time.
1016		1834
1017	=cut	1835	=cut
1018		1836
1019	sub quit_character {	1837	sub quit_character {
1020	my ($pl) = @_;	1838	my ($pl) = @_;
1021		1839
		1840	my $name = $pl->ob->name;
		1841
1022	$pl->{deny_save} = 1;	1842	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1843	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1844
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1845	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1026	$pl->deactivate;	1846	$pl->deactivate;
		1847
		1848	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1849	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1850	ext::highscore::check ($pl->ob);
		1851
1028	$pl->ns->destroy if $pl->ns;	1852	$pl->ns->destroy if $pl->ns;
1029		1853
1030	my $path = playerdir $pl;	1854	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1855	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1856	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1857	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1858	$pl->destroy;
		1859
		1860	my $prefix = qr<^~\Q$name\E/>;
		1861
		1862	# nuke player maps
		1863	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1864
1035	IO::AIO::aio_rmtree $temp;	1865	IO::AIO::aio_rmtree $temp;
		1866	}
		1867
		1868	=item $pl->kick
		1869
		1870	Kicks a player out of the game. This destroys the connection.
		1871
		1872	=cut
		1873
		1874	sub kick {
		1875	my ($pl, $kicker) = @_;
		1876
		1877	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1878	$pl->killer ("kicked");
		1879	$pl->ns->destroy;
1036	}	1880	}
1037		1881
1038	=item cf::player::list_logins	1882	=item cf::player::list_logins
1039		1883
1040	Returns am arrayref of all valid playernames in the system, can take a	1884	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1885	while and may block, so not sync_job-capable, ever.
1042		1886
1043	=cut	1887	=cut
1044		1888
1045	sub list_logins {	1889	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1890	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1891	or return [];
1048		1892
1049	my @logins;	1893	my @logins;
1050		1894
1051	for my $login (@$dirs) {	1895	for my $login (@$dirs) {
		1896	my $path = path $login;
		1897
		1898	# a .pst is a dead give-away for a valid player
		1899	# if no pst file found, open and chekc for blocked users
		1900	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1901	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1902	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1903	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1904	}
1055		1905
1056	utf8::decode $login;	1906	utf8::decode $login;
1057	push @logins, $login;	1907	push @logins, $login;
1058	}	1908	}
1059		1909
1060	\@logins	1910	\@logins
1061	}	1911	}
1062		1912
1063	=item $player->maps	1913	=item $player->maps
1064		1914
		1915	=item cf::player::maps $login
		1916
1065	Returns an arrayref of map paths that are private for this	1917	Returns an arrayref of map paths that are private for this
1066	player. May block.	1918	player. May block.
1067		1919
1068	=cut	1920	=cut
1069		1921
1070	sub maps($) {	1922	sub maps($) {
1071	my ($pl) = @_;	1923	my ($pl) = @_;
		1924
		1925	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1926
1073	my $files = aio_readdir playerdir $pl	1927	my $files = aio_readdir playerdir $pl
1074	or return;	1928	or return;
1075		1929
1076	my @paths;	1930	my @paths;
…		…
1078	for (@$files) {	1932	for (@$files) {
1079	utf8::decode $_;	1933	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1934	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1935	next unless /^$PATH_SEP/o;
1082		1936
1083	s/\.map$//;	1937	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1938	}
1086		1939
1087	\@paths	1940	\@paths
1088	}	1941	}
1089		1942
		1943	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1944
		1945	Expand deliantra pod fragments into protocol xml.
		1946
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1947	=item $player->ext_msg ($type, @msg)
1091		1948
1092	Sends an ext reply to the player.	1949	Sends an ext event to the client.
1093		1950
1094	=cut	1951	=cut
1095		1952
1096	sub ext_reply($$$%) {	1953	sub ext_msg($$@) {
1097	my ($self, $id, %msg) = @_;	1954	my ($self, $type, @msg) = @_;
1098		1955
1099	$msg{msgid} = $id;	1956	$self->ns->ext_msg ($type, @msg);
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1957	}
1103		1958
1104	package cf;	1959	=head3 cf::region
		1960
		1961	=over 4
		1962
		1963	=cut
		1964
		1965	package cf::region;
		1966
		1967	=item cf::region::find_by_path $path
		1968
		1969	Tries to decuce the likely region for a map knowing only its path.
		1970
		1971	=cut
		1972
		1973	sub find_by_path($) {
		1974	my ($path) = @_;
		1975
		1976	$path =~ s/^~[^\/]*//; # skip ~login
		1977
		1978	my ($match, $specificity);
		1979
		1980	for my $region (list) {
		1981	if ($region->{match} && $path =~ $region->{match}) {
		1982	($match, $specificity) = ($region, $region->specificity)
		1983	if $region->specificity > $specificity;
		1984	}
		1985	}
		1986
		1987	$match
		1988	}
1105		1989
1106	=back	1990	=back
1107
1108		1991
1109	=head3 cf::map	1992	=head3 cf::map
1110		1993
1111	=over 4	1994	=over 4
1112		1995
…		…
1124	our $MAX_RESET = 3600;	2007	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	2008	our $DEFAULT_RESET = 3000;
1126		2009
1127	sub generate_random_map {	2010	sub generate_random_map {
1128	my ($self, $rmp) = @_;	2011	my ($self, $rmp) = @_;
1129	# mit "rum" bekleckern, nicht	2012
		2013	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2014
1130	$self->_create_random_map (	2015	$self->_create_random_map ($rmp);
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region}), $rmp->{custom}
1142	)
1143	}	2016	}
		2017
		2018	=item cf::map->register ($regex, $prio)
		2019
		2020	Register a handler for the map path matching the given regex at the
		2021	givne priority (higher is better, built-in handlers have priority 0, the
		2022	default).
		2023
		2024	=cut
1144		2025
1145	sub register {	2026	sub register {
1146	my (undef, $regex) = @_;	2027	my (undef, $regex, $prio) = @_;
1147	my $pkg = caller;	2028	my $pkg = caller;
1148		2029
1149	no strict;
1150	push @{"$pkg\::ISA"}, __PACKAGE__;	2030	push @{"$pkg\::ISA"}, __PACKAGE__;
1151		2031
1152	$EXT_MAP{$pkg} = qr<$regex>;	2032	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1153	}	2033	}
1154		2034
1155	# also paths starting with '/'	2035	# also paths starting with '/'
1156	$EXT_MAP{"cf::map"} = qr{^(?=/)};	2036	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1157		2037
1158	sub thawer_merge {	2038	sub thawer_merge {
1159	my ($self, $merge) = @_;	2039	my ($self, $merge) = @_;
1160		2040
1161	# we have to keep some variables in memory intact	2041	# we have to keep some variables in memory intact
1162	local $self->{path};	2042	local $self->{path};
1163	local $self->{load_path};	2043	local $self->{load_path};
1164	local $self->{deny_save};
1165	local $self->{deny_reset};
1166		2044
1167	$self->SUPER::thawer_merge ($merge);	2045	$self->SUPER::thawer_merge ($merge);
1168	}	2046	}
1169		2047
1170	sub normalise {	2048	sub normalise {
1171	my ($path, $base) = @_;	2049	my ($path, $base) = @_;
		2050
		2051	$path = "$path"; # make sure it's a string
		2052
		2053	$path =~ s/\.map$//;
1172		2054
1173	# map plan:	2055	# map plan:
1174	#	2056	#
1175	# /! non-realised random map exit (special hack!)	2057	# /! non-realised random map exit (special hack!)
1176	# {... are special paths that are not being touched	2058	# {... are special paths that are not being touched
…		…
1189	$base =~ s{[^/]+/?$}{};	2071	$base =~ s{[^/]+/?$}{};
1190	$path = "$base/$path";	2072	$path = "$base/$path";
1191	}	2073	}
1192		2074
1193	for ($path) {	2075	for ($path) {
1194	redo if s{//}{/};
1195	redo if s{/\.?/}{/};	2076	redo if s{/\.?/}{/};
1196	redo if s{/[^/]+/\.\./}{/};	2077	redo if s{/[^/]+/\.\./}{/};
1197	}	2078	}
1198		2079
1199	$path	2080	$path
…		…
1204		2085
1205	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	2086	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1206		2087
1207	$path = normalise $path, $base;	2088	$path = normalise $path, $base;
1208		2089
1209	for my $pkg (keys %EXT_MAP) {	2090	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1210	if ($path =~ $EXT_MAP{$pkg}) {	2091	if ($path =~ $EXT_MAP{$pkg}[1]) {
1211	my $self = bless cf::map::new, $pkg;	2092	my $self = bless cf::map::new, $pkg;
1212	$self->{path} = $path; $self->path ($path);	2093	$self->{path} = $path; $self->path ($path);
1213	$self->init; # pass $1 etc.	2094	$self->init; # pass $1 etc.
1214	return $self;	2095	return $self;
1215	}	2096	}
1216	}	2097	}
1217		2098
1218	Carp::carp "unable to resolve path '$path'.";	2099	Carp::cluck "unable to resolve path '$path' (base '$base')";
1219	()	2100	()
1220	}	2101	}
1221		2102
		2103	# may re-bless or do other evil things
1222	sub init {	2104	sub init {
1223	my ($self) = @_;	2105	my ($self) = @_;
1224		2106
1225	$self	2107	$self
1226	}	2108	}
…		…
1238		2120
1239	# the original (read-only) location	2121	# the original (read-only) location
1240	sub load_path {	2122	sub load_path {
1241	my ($self) = @_;	2123	my ($self) = @_;
1242		2124
1243	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2125	"$MAPDIR/$self->{path}.map"
1244	}	2126	}
1245		2127
1246	# the temporary/swap location	2128	# the temporary/swap location
1247	sub save_path {	2129	sub save_path {
1248	my ($self) = @_;	2130	my ($self) = @_;
1249		2131
1250	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2132	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1251	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2133	"$TMPDIR/$path.map"
1252	}	2134	}
1253		2135
1254	# the unique path, undef == no special unique path	2136	# the unique path, undef == no special unique path
1255	sub uniq_path {	2137	sub uniq_path {
1256	my ($self) = @_;	2138	my ($self) = @_;
1257		2139
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2140	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1259	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2141	"$UNIQUEDIR/$path"
1260	}	2142	}
1261		2143
1262	# and all this just because we cannot iterate over	2144	sub decay_objects {
1263	# all maps in C++...
1264	sub change_all_map_light {
1265	my ($change) = @_;	2145	my ($self) = @_;
1266		2146
1267	$_->change_map_light ($change)	2147	return if $self->{deny_reset};
1268	for grep $_->outdoor, values %cf::MAP;	2148
		2149	$self->do_decay_objects;
1269	}	2150	}
1270		2151
1271	sub unlink_save {	2152	sub unlink_save {
1272	my ($self) = @_;	2153	my ($self) = @_;
1273		2154
…		…
1278		2159
1279	sub load_header_from($) {	2160	sub load_header_from($) {
1280	my ($self, $path) = @_;	2161	my ($self, $path) = @_;
1281		2162
1282	utf8::encode $path;	2163	utf8::encode $path;
1283	aio_open $path, O_RDONLY, 0	2164	my $f = new_from_file cf::object::thawer $path
1284	or return;	2165	or return;
1285		2166
1286	$self->_load_header ($path)	2167	$self->_load_header ($f)
1287	or return;	2168	or return;
1288		2169
		2170	local $MAP_LOADING{$self->{path}} = $self;
		2171	$f->resolve_delayed_derefs;
		2172
1289	$self->{load_path} = $path;	2173	$self->{load_path} = $path;
1290		2174
1291	1	2175	1
1292	}	2176	}
1293		2177
		2178	# used to laod the header of an original map
1294	sub load_orig {	2179	sub load_header_orig {
1295	my ($self) = @_;	2180	my ($self) = @_;
1296		2181
1297	$self->load_header_from ($self->load_path)	2182	$self->load_header_from ($self->load_path)
1298	}	2183	}
1299		2184
		2185	# used to laod the header of an instantiated map
1300	sub load_temp {	2186	sub load_header_temp {
1301	my ($self) = @_;	2187	my ($self) = @_;
1302		2188
1303	$self->load_header_from ($self->save_path)	2189	$self->load_header_from ($self->save_path)
		2190	}
		2191
		2192	# called after loading the header from an instantiated map
		2193	sub prepare_temp {
		2194	my ($self) = @_;
		2195
		2196	$self->last_access ((delete $self->{last_access})
		2197	|| $cf::RUNTIME); #d#
		2198	# safety
		2199	$self->{instantiate_time} = $cf::RUNTIME
		2200	if $self->{instantiate_time} > $cf::RUNTIME;
		2201	}
		2202
		2203	# called after loading the header from an original map
		2204	sub prepare_orig {
		2205	my ($self) = @_;
		2206
		2207	$self->{load_original} = 1;
		2208	$self->{instantiate_time} = $cf::RUNTIME;
		2209	$self->last_access ($cf::RUNTIME);
		2210	$self->instantiate;
1304	}	2211	}
1305		2212
1306	sub load_header {	2213	sub load_header {
1307	my ($self) = @_;	2214	my ($self) = @_;
1308		2215
1309	if ($self->load_temp) {	2216	if ($self->load_header_temp) {
1310	$self->last_access ((delete $self->{last_access})	2217	$self->prepare_temp;
1311	|| $cf::RUNTIME); #d#
1312	# safety
1313	$self->{instantiate_time} = $cf::RUNTIME
1314	if $self->{instantiate_time} > $cf::RUNTIME;
1315	} else {	2218	} else {
1316	$self->load_orig	2219	$self->load_header_orig
1317	or return;	2220	or return;
1318		2221	$self->prepare_orig;
1319	$self->{load_original} = 1;
1320	$self->{instantiate_time} = $cf::RUNTIME;
1321	$self->last_access ($cf::RUNTIME);
1322	$self->instantiate;
1323	}	2222	}
		2223
		2224	$self->{deny_reset} = 1
		2225	if $self->no_reset;
		2226
		2227	$self->default_region (cf::region::find_by_path $self->{path})
		2228	unless $self->default_region;
1324		2229
1325	1	2230	1
1326	}	2231	}
1327		2232
1328	sub find;	2233	sub find;
1329	sub find {	2234	sub find {
1330	my ($path, $origin) = @_;	2235	my ($path, $origin) = @_;
1331		2236
		2237	cf::cede_to_tick;
		2238
1332	$path = normalise $path, $origin && $origin->path;	2239	$path = normalise $path, $origin;
1333		2240
		2241	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1334	cf::lock_wait "map_find:$path";	2242	my $guard2 = cf::lock_acquire "map_find:$path";
1335		2243
1336	$cf::MAP{$path} || do {	2244	$cf::MAP{$path} || do {
1337	my $guard = cf::lock_acquire "map_find:$path";
1338	my $map = new_from_path cf::map $path	2245	my $map = new_from_path cf::map $path
1339	or return;	2246	or return;
1340		2247
1341	$map->{last_save} = $cf::RUNTIME;	2248	$map->{last_save} = $cf::RUNTIME;
1342		2249
1343	$map->load_header	2250	$map->load_header
1344	or return;	2251	or return;
1345		2252
1346	if ($map->should_reset) {	2253	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1347	# doing this can freeze the server in a sync job, obviously	2254	# doing this can freeze the server in a sync job, obviously
1348	#$cf::WAIT_FOR_TICK->wait;	2255	#$cf::WAIT_FOR_TICK->wait;
		2256	undef $guard2;
		2257	undef $guard1;
1349	$map->reset;	2258	$map->reset;
1350	undef $guard;
1351	$map = find $path	2259	return find $path;
1352	or return;
1353	}	2260	}
1354		2261
1355	$cf::MAP{$path} = $map	2262	$cf::MAP{$path} = $map
1356	}	2263	}
1357	}	2264	}
		2265
		2266	sub pre_load { }
		2267	#sub post_load { } # XS
1358		2268
1359	sub load {	2269	sub load {
1360	my ($self) = @_;	2270	my ($self) = @_;
1361		2271
		2272	local $self->{deny_reset} = 1; # loading can take a long time
		2273
1362	my $path = $self->{path};	2274	my $path = $self->{path};
		2275
		2276	{
1363	my $guard = cf::lock_acquire "map_load:$path";	2277	my $guard = cf::lock_acquire "map_data:$path";
1364		2278
1365	return if $self->in_memory != cf::MAP_SWAPPED;	2279	return unless $self->valid;
		2280	return unless $self->state == cf::MAP_SWAPPED;
1366		2281
1367	$self->in_memory (cf::MAP_LOADING);
1368
1369	$self->alloc;	2282	$self->alloc;
1370	$self->_load_objects ($self->{load_path}, 1)	2283
		2284	$self->pre_load;
		2285	cf::cede_to_tick;
		2286
		2287	if (exists $self->{load_path}) {
		2288	my $f = new_from_file cf::object::thawer $self->{load_path};
		2289	$f->skip_block;
		2290	$self->_load_objects ($f)
1371	or return;	2291	or return;
1372		2292
1373	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2293	$self->post_load_original
1374	if delete $self->{load_original};	2294	if delete $self->{load_original};
1375		2295
1376	if (my $uniq = $self->uniq_path) {	2296	if (my $uniq = $self->uniq_path) {
1377	utf8::encode $uniq;	2297	utf8::encode $uniq;
1378	if (aio_open $uniq, O_RDONLY, 0) {	2298	unless (aio_stat $uniq) {
		2299	if (my $f = new_from_file cf::object::thawer $uniq) {
1379	$self->clear_unique_items;	2300	$self->clear_unique_items;
1380	$self->_load_objects ($uniq, 0);	2301	$self->_load_objects ($f);
		2302	$f->resolve_delayed_derefs;
		2303	}
		2304	}
1381	}	2305	}
1382	}
1383		2306
1384	Coro::cede;	2307	$f->resolve_delayed_derefs;
		2308	} else {
		2309	$self->post_load_original
		2310	if delete $self->{load_original};
		2311	}
1385		2312
		2313	$self->state (cf::MAP_INACTIVE);
		2314
		2315	cf::cede_to_tick;
1386	# now do the right thing for maps	2316	# now do the right thing for maps
1387	$self->link_multipart_objects;	2317	$self->link_multipart_objects;
1388
1389	unless ($self->{deny_activate}) {
1390	$self->decay_objects;
1391	$self->fix_auto_apply;
1392	$self->update_buttons;
1393	Coro::cede;
1394	$self->set_darkness_map;
1395	$self->difficulty ($self->estimate_difficulty)	2318	$self->difficulty ($self->estimate_difficulty)
1396	unless $self->difficulty;	2319	unless $self->difficulty;
1397	Coro::cede;	2320	cf::cede_to_tick;
1398	$self->activate;	2321
		2322	unless ($self->{deny_activate}) {
		2323	$self->decay_objects;
		2324	$self->fix_auto_apply;
		2325	$self->update_buttons;
		2326	cf::cede_to_tick;
		2327	#$self->activate; # no longer activate maps automatically
		2328	}
		2329
		2330	$self->{last_save} = $cf::RUNTIME;
		2331	$self->last_access ($cf::RUNTIME);
		2332	}
		2333
		2334	$self->post_load;
		2335
1399	}	2336	1
1400
1401	$self->in_memory (cf::MAP_IN_MEMORY);
1402	}	2337	}
1403		2338
		2339	# customize the map for a given player, i.e.
		2340	# return the _real_ map. used by e.g. per-player
		2341	# maps to change the path to ~playername/mappath
1404	sub customise_for {	2342	sub customise_for {
1405	my ($self, $ob) = @_;	2343	my ($self, $ob) = @_;
1406		2344
1407	return find "~" . $ob->name . "/" . $self->{path}	2345	return find "~" . $ob->name . "/" . $self->{path}
1408	if $self->per_player;	2346	if $self->per_player;
1409		2347
		2348	# return find "?party/" . $ob->name . "/" . $self->{path}
		2349	# if $self->per_party;
		2350
1410	$self	2351	$self
1411	}
1412
1413	# find and load all maps in the 3x3 area around a map
1414	sub load_diag {
1415	my ($map) = @_;
1416
1417	my @diag; # diagonal neighbours
1418
1419	for (0 .. 3) {
1420	my $neigh = $map->tile_path ($_)
1421	or next;
1422	$neigh = find $neigh, $map
1423	or next;
1424	$neigh->load;
1425
1426	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1427	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1428	}
1429
1430	for (@diag) {
1431	my $neigh = find @$_
1432	or next;
1433	$neigh->load;
1434	}
1435	}	2352	}
1436		2353
1437	sub find_sync {	2354	sub find_sync {
1438	my ($path, $origin) = @_;	2355	my ($path, $origin) = @_;
1439		2356
1440	cf::sync_job { find $path, $origin }	2357	# it's a bug to call this from the main context
		2358	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2359	if $Coro::current == $Coro::main;
		2360
		2361	find $path, $origin
1441	}	2362	}
1442		2363
1443	sub do_load_sync {	2364	sub do_load_sync {
1444	my ($map) = @_;	2365	my ($map) = @_;
1445		2366
1446	cf::sync_job { $map->load };	2367	# it's a bug to call this from the main context
		2368	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2369	if $Coro::current == $Coro::main;
		2370
		2371	$map->load;
1447	}	2372	}
1448		2373
1449	our %MAP_PREFETCH;	2374	our %MAP_PREFETCH;
1450	our $MAP_PREFETCHER = undef;	2375	our $MAP_PREFETCHER = undef;
1451		2376
1452	sub find_async {	2377	sub find_async {
1453	my ($path, $origin) = @_;	2378	my ($path, $origin, $load) = @_;
1454		2379
1455	$path = normalise $path, $origin && $origin->{path};	2380	$path = normalise $path, $origin;
1456		2381
1457	if (my $map = $cf::MAP{$path}) {	2382	if (my $map = $cf::MAP{$path}) {
1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2383	return $map if !$load || $map->linkable;
1459	}	2384	}
1460		2385
1461	undef $MAP_PREFETCH{$path};	2386	$MAP_PREFETCH{$path} |= $load;
		2387
1462	$MAP_PREFETCHER ||= cf::async {	2388	$MAP_PREFETCHER ||= cf::async {
		2389	$Coro::current->{desc} = "map prefetcher";
		2390
1463	while (%MAP_PREFETCH) {	2391	while (%MAP_PREFETCH) {
1464	for my $path (keys %MAP_PREFETCH) {	2392	while (my ($k, $v) = each %MAP_PREFETCH) {
1465	my $map = find $path	2393	if (my $map = find $k) {
1466	or next;
1467	$map->load;	2394	$map->load if $v;
		2395	}
1468		2396
1469	delete $MAP_PREFETCH{$path};	2397	delete $MAP_PREFETCH{$k};
1470	}	2398	}
1471	}	2399	}
1472	undef $MAP_PREFETCHER;	2400	undef $MAP_PREFETCHER;
1473	};	2401	};
		2402	$MAP_PREFETCHER->prio (6);
1474		2403
1475	()	2404	()
1476	}	2405	}
1477		2406
		2407	# common code, used by both ->save and ->swapout
1478	sub save {	2408	sub _save {
1479	my ($self) = @_;	2409	my ($self) = @_;
1480
1481	my $lock = cf::lock_acquire "map_data:" . $self->path;
1482		2410
1483	$self->{last_save} = $cf::RUNTIME;	2411	$self->{last_save} = $cf::RUNTIME;
1484		2412
1485	return unless $self->dirty;	2413	return unless $self->dirty;
1486		2414
…		…
1492	return if $self->{deny_save};	2420	return if $self->{deny_save};
1493		2421
1494	local $self->{last_access} = $self->last_access;#d#	2422	local $self->{last_access} = $self->last_access;#d#
1495		2423
1496	cf::async {	2424	cf::async {
		2425	$Coro::current->{desc} = "map player save";
1497	$_->contr->save for $self->players;	2426	$_->contr->save for $self->players;
1498	};	2427	};
		2428
		2429	cf::get_slot 0.02;
1499		2430
1500	if ($uniq) {	2431	if ($uniq) {
1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1502	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2433	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1503	} else {	2434	} else {
1504	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2435	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1505	}	2436	}
1506	}	2437	}
1507		2438
		2439	sub save {
		2440	my ($self) = @_;
		2441
		2442	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2443
		2444	$self->_save;
		2445	}
		2446
1508	sub swap_out {	2447	sub swap_out {
1509	my ($self) = @_;	2448	my ($self) = @_;
1510		2449
1511	# save first because save cedes
1512	$self->save;
1513
1514	my $lock = cf::lock_acquire "map_data:" . $self->path;	2450	my $lock = cf::lock_acquire "map_data:$self->{path}";
1515		2451
		2452	return if !$self->linkable;
		2453	return if $self->{deny_save};
1516	return if $self->players;	2454	return if $self->players;
1517	return if $self->in_memory != cf::MAP_IN_MEMORY;
1518	return if $self->{deny_save};
1519		2455
		2456	# first deactivate the map and "unlink" it from the core
		2457	$self->deactivate;
		2458	$_->clear_links_to ($self) for values %cf::MAP;
		2459	$self->state (cf::MAP_SWAPPED);
		2460
		2461	# then atomically save
		2462	$self->_save;
		2463
		2464	# then free the map
1520	$self->clear;	2465	$self->clear;
1521	$self->in_memory (cf::MAP_SWAPPED);
1522	}	2466	}
1523		2467
1524	sub reset_at {	2468	sub reset_at {
1525	my ($self) = @_;	2469	my ($self) = @_;
1526		2470
1527	# TODO: safety, remove and allow resettable per-player maps	2471	# TODO: safety, remove and allow resettable per-player maps
1528	return 1e99 if $self->isa ("ext::map_per_player");#d#
1529	return 1e99 if $self->{deny_reset};	2472	return 1e99 if $self->{deny_reset};
1530		2473
1531	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2474	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1532	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2475	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1533		2476
…		…
1544	my ($self) = @_;	2487	my ($self) = @_;
1545		2488
1546	my $lock = cf::lock_acquire "map_data:$self->{path}";	2489	my $lock = cf::lock_acquire "map_data:$self->{path}";
1547		2490
1548	return if $self->players;	2491	return if $self->players;
1549	return if $self->isa ("ext::map_per_player");#d#
1550		2492
1551	warn "resetting map ", $self->path;#d#	2493	cf::trace "resetting map ", $self->path, "\n";
		2494
		2495	$self->state (cf::MAP_SWAPPED);
		2496
		2497	# need to save uniques path
		2498	unless ($self->{deny_save}) {
		2499	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2500
		2501	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2502	if $uniq;
		2503	}
1552		2504
1553	delete $cf::MAP{$self->path};	2505	delete $cf::MAP{$self->path};
1554		2506
1555	$self->in_memory (cf::MAP_SWAPPED);	2507	$self->deactivate;
		2508	$_->clear_links_to ($self) for values %cf::MAP;
1556	$self->clear;	2509	$self->clear;
1557
1558	$_->clear_links_to ($self) for values %cf::MAP;
1559		2510
1560	$self->unlink_save;	2511	$self->unlink_save;
1561	$self->destroy;	2512	$self->destroy;
1562	}	2513	}
1563		2514
1564	my $nuke_counter = "aaaa";	2515	my $nuke_counter = "aaaa";
1565		2516
1566	sub nuke {	2517	sub nuke {
1567	my ($self) = @_;	2518	my ($self) = @_;
1568		2519
		2520	{
		2521	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2522
1569	delete $cf::MAP{$self->path};	2523	delete $cf::MAP{$self->path};
1570		2524
1571	$self->unlink_save;	2525	$self->unlink_save;
1572		2526
1573	bless $self, "cf::map";	2527	bless $self, "cf::map::wrap";
1574	delete $self->{deny_reset};	2528	delete $self->{deny_reset};
1575	$self->{deny_save} = 1;	2529	$self->{deny_save} = 1;
1576	$self->reset_timeout (1);	2530	$self->reset_timeout (1);
1577	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2531	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1578		2532
1579	$cf::MAP{$self->path} = $self;	2533	$cf::MAP{$self->path} = $self;
		2534	}
1580		2535
1581	$self->reset; # polite request, might not happen	2536	$self->reset; # polite request, might not happen
		2537	}
		2538
		2539	=item $maps = cf::map::tmp_maps
		2540
		2541	Returns an arrayref with all map paths of currently instantiated and saved
		2542	maps. May block.
		2543
		2544	=cut
		2545
		2546	sub tmp_maps() {
		2547	[
		2548	map {
		2549	utf8::decode $_;
		2550	/\.map$/
		2551	? normalise $_
		2552	: ()
		2553	} @{ aio_readdir $TMPDIR or [] }
		2554	]
		2555	}
		2556
		2557	=item $maps = cf::map::random_maps
		2558
		2559	Returns an arrayref with all map paths of currently instantiated and saved
		2560	random maps. May block.
		2561
		2562	=cut
		2563
		2564	sub random_maps() {
		2565	[
		2566	map {
		2567	utf8::decode $_;
		2568	/\.map$/
		2569	? normalise "?random/$_"
		2570	: ()
		2571	} @{ aio_readdir $RANDOMDIR or [] }
		2572	]
1582	}	2573	}
1583		2574
1584	=item cf::map::unique_maps	2575	=item cf::map::unique_maps
1585		2576
1586	Returns an arrayref of paths of all shared maps that have	2577	Returns an arrayref of paths of all shared maps that have
1587	instantiated unique items. May block.	2578	instantiated unique items. May block.
1588		2579
1589	=cut	2580	=cut
1590		2581
1591	sub unique_maps() {	2582	sub unique_maps() {
1592	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2583	[
1593	or return;	2584	map {
1594
1595	my @paths;
1596
1597	for (@$files) {
1598	utf8::decode $_;	2585	utf8::decode $_;
1599	next if /\.pst$/;	2586	s/\.map$//; # TODO future compatibility hack
1600	next unless /^$PATH_SEP/o;	2587	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2588	? ()
		2589	: normalise $_
		2590	} @{ aio_readdir $UNIQUEDIR or [] }
		2591	]
		2592	}
1601		2593
		2594	=item cf::map::static_maps
		2595
		2596	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2597	file in the shared directory excluding F</styles> and F</editor>). May
		2598	block.
		2599
		2600	=cut
		2601
		2602	sub static_maps() {
		2603	my @dirs = "";
		2604	my @maps;
		2605
		2606	while (@dirs) {
		2607	my $dir = shift @dirs;
		2608
		2609	next if $dir eq "/styles" || $dir eq "/editor";
		2610
		2611	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2612	or return;
		2613
		2614	for (@$files) {
1602	s/\.map$//;	2615	s/\.map$// or next;
1603	push @paths, $_;	2616	utf8::decode $_;
1604	}	2617	push @maps, "$dir/$_";
		2618	}
1605		2619
1606	\@paths	2620	push @dirs, map "$dir/$_", @$dirs;
1607	}	2621	}
1608		2622
1609	package cf;	2623	\@maps
		2624	}
1610		2625
1611	=back	2626	=back
1612		2627
1613	=head3 cf::object	2628	=head3 cf::object
1614		2629
…		…
1618		2633
1619	=over 4	2634	=over 4
1620		2635
1621	=item $ob->inv_recursive	2636	=item $ob->inv_recursive
1622		2637
1623	Returns the inventory of the object _and_ their inventories, recursively.	2638	Returns the inventory of the object I<and> their inventories, recursively,
		2639	but I<not> the object itself.
1624		2640
1625	=cut	2641	=cut
1626		2642
1627	sub inv_recursive_;	2643	sub inv_recursive_;
1628	sub inv_recursive_ {	2644	sub inv_recursive_ {
…		…
1631		2647
1632	sub inv_recursive {	2648	sub inv_recursive {
1633	inv_recursive_ inv $_[0]	2649	inv_recursive_ inv $_[0]
1634	}	2650	}
1635		2651
		2652	=item $ref = $ob->ref
		2653
		2654	Creates and returns a persistent reference to an object that can be stored as a string.
		2655
		2656	=item $ob = cf::object::deref ($refstring)
		2657
		2658	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2659	even if the object actually exists. May block.
		2660
		2661	=cut
		2662
		2663	sub deref {
		2664	my ($ref) = @_;
		2665
		2666	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2667	my ($uuid, $name) = ($1, $2);
		2668	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2669	or return;
		2670	$pl->ob->uuid eq $uuid
		2671	or return;
		2672
		2673	$pl->ob
		2674	} else {
		2675	warn "$ref: cannot resolve object reference\n";
		2676	undef
		2677	}
		2678	}
		2679
1636	package cf;	2680	package cf;
1637		2681
1638	=back	2682	=back
1639		2683
1640	=head3 cf::object::player	2684	=head3 cf::object::player
…		…
1646	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2690	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1647	can be C<undef>. Does the right thing when the player is currently in a	2691	can be C<undef>. Does the right thing when the player is currently in a
1648	dialogue with the given NPC character.	2692	dialogue with the given NPC character.
1649		2693
1650	=cut	2694	=cut
		2695
		2696	our $SAY_CHANNEL = {
		2697	id => "say",
		2698	title => "Map",
		2699	reply => "say ",
		2700	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2701	};
		2702
		2703	our $CHAT_CHANNEL = {
		2704	id => "chat",
		2705	title => "Chat",
		2706	reply => "chat ",
		2707	tooltip => "Player chat and shouts, global to the server.",
		2708	};
1651		2709
1652	# rough implementation of a future "reply" method that works	2710	# rough implementation of a future "reply" method that works
1653	# with dialog boxes.	2711	# with dialog boxes.
1654	#TODO: the first argument must go, split into a $npc->reply_to ( method	2712	#TODO: the first argument must go, split into a $npc->reply_to ( method
1655	sub cf::object::player::reply($$$;$) {	2713	sub cf::object::player::reply($$$;$) {
…		…
1657		2715
1658	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2716	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1659		2717
1660	if ($self->{record_replies}) {	2718	if ($self->{record_replies}) {
1661	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2719	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2720
1662	} else {	2721	} else {
		2722	my $pl = $self->contr;
		2723
		2724	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2725	my $dialog = $pl->{npc_dialog};
		2726	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2727
		2728	} else {
1663	$msg = $npc->name . " says: $msg" if $npc;	2729	$msg = $npc->name . " says: $msg" if $npc;
1664	$self->message ($msg, $flags);	2730	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2731	}
1665	}	2732	}
		2733	}
		2734
		2735	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2736
		2737	=cut
		2738
		2739	sub cf::object::send_msg {
		2740	my $pl = shift->contr
		2741	or return;
		2742	$pl->send_msg (@_);
1666	}	2743	}
1667		2744
1668	=item $player_object->may ("access")	2745	=item $player_object->may ("access")
1669		2746
1670	Returns wether the given player is authorized to access resource "access"	2747	Returns wether the given player is authorized to access resource "access"
…		…
1683		2760
1684	=item $player_object->enter_link	2761	=item $player_object->enter_link
1685		2762
1686	Freezes the player and moves him/her to a special map (C<{link}>).	2763	Freezes the player and moves him/her to a special map (C<{link}>).
1687		2764
1688	The player should be reasonably safe there for short amounts of time. You	2765	The player should be reasonably safe there for short amounts of time (e.g.
1689	I<MUST> call C<leave_link> as soon as possible, though.	2766	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2767	though, as the player cannot control the character while it is on the link
		2768	map.
1690		2769
1691	Will never block.	2770	Will never block.
1692		2771
1693	=item $player_object->leave_link ($map, $x, $y)	2772	=item $player_object->leave_link ($map, $x, $y)
1694		2773
…		…
1702	=cut	2781	=cut
1703		2782
1704	sub link_map {	2783	sub link_map {
1705	unless ($LINK_MAP) {	2784	unless ($LINK_MAP) {
1706	$LINK_MAP = cf::map::find "{link}"	2785	$LINK_MAP = cf::map::find "{link}"
1707	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2786	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1708	$LINK_MAP->load;	2787	$LINK_MAP->load;
1709	}	2788	}
1710		2789
1711	$LINK_MAP	2790	$LINK_MAP
1712	}	2791	}
…		…
1714	sub cf::object::player::enter_link {	2793	sub cf::object::player::enter_link {
1715	my ($self) = @_;	2794	my ($self) = @_;
1716		2795
1717	$self->deactivate_recursive;	2796	$self->deactivate_recursive;
1718		2797
		2798	++$self->{_link_recursion};
		2799
1719	return if UNIVERSAL::isa $self->map, "ext::map_link";	2800	return if UNIVERSAL::isa $self->map, "ext::map_link";
1720		2801
1721	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2802	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1722	if $self->map;	2803	if $self->map && $self->map->{path} ne "{link}";
1723		2804
1724	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2805	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1725	}	2806	}
1726		2807
1727	sub cf::object::player::leave_link {	2808	sub cf::object::player::leave_link {
1728	my ($self, $map, $x, $y) = @_;	2809	my ($self, $map, $x, $y) = @_;
		2810
		2811	return unless $self->contr->active;
1729		2812
1730	my $link_pos = delete $self->{_link_pos};	2813	my $link_pos = delete $self->{_link_pos};
1731		2814
1732	unless ($map) {	2815	unless ($map) {
1733	# restore original map position	2816	# restore original map position
…		…
1744	($x, $y) = (-1, -1)	2827	($x, $y) = (-1, -1)
1745	unless (defined $x) && (defined $y);	2828	unless (defined $x) && (defined $y);
1746		2829
1747	# use -1 or undef as default coordinates, not 0, 0	2830	# use -1 or undef as default coordinates, not 0, 0
1748	($x, $y) = ($map->enter_x, $map->enter_y)	2831	($x, $y) = ($map->enter_x, $map->enter_y)
1749	if $x <=0 && $y <= 0;	2832	if $x <= 0 && $y <= 0;
1750		2833
1751	$map->load;	2834	$map->load;
1752	$map->load_diag;
1753		2835
1754	return unless $self->contr->active;	2836	return unless $self->contr->active;
		2837
		2838	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2839	if ($self->enter_map ($map, $x, $y)) {
		2840	# entering was successful
		2841	delete $self->{_link_recursion};
		2842	# only activate afterwards, to support waiting in hooks
1755	$self->activate_recursive;	2843	$self->activate_recursive;
1756	$self->enter_map ($map, $x, $y);
1757	}
1758
1759	cf::player->attach (
1760	on_logout => sub {
1761	my ($pl) = @_;
1762
1763	# abort map switching before logout
1764	if ($pl->ob->{_link_pos}) {
1765	cf::sync_job {
1766	$pl->ob->leave_link
1767	};
1768	}
1769	},	2844	}
1770	on_login => sub {
1771	my ($pl) = @_;
1772		2845
1773	# try to abort aborted map switching on player login :)	2846	}
1774	# should happen only on crashes
1775	if ($pl->ob->{_link_pos}) {
1776	$pl->ob->enter_link;
1777	(async {
1778	# we need this sleep as the login has a concurrent enter_exit running
1779	# and this sleep increases chances of the player not ending up in scorn
1780	$pl->ob->reply (undef,
1781	"There was an internal problem at your last logout, "
1782	. "the server will try to bring you to your intended destination in a second.",
1783	cf::NDI_RED);
1784	Coro::Timer::sleep 1;
1785	$pl->ob->leave_link;
1786	})->prio (2);
1787	}
1788	},
1789	);
1790		2847
1791	=item $player_object->goto ($path, $x, $y)	2848	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1792		2849
		2850	Moves the player to the given map-path and coordinates by first freezing
		2851	her, loading and preparing them map, calling the provided $check callback
		2852	that has to return the map if sucecssful, and then unfreezes the player on
		2853	the new (success) or old (failed) map position. In either case, $done will
		2854	be called at the end of this process.
		2855
		2856	Note that $check will be called with a potentially non-loaded map, so if
		2857	it needs a loaded map it has to call C<< ->load >>.
		2858
1793	=cut	2859	=cut
		2860
		2861	our $GOTOGEN;
1794		2862
1795	sub cf::object::player::goto {	2863	sub cf::object::player::goto {
1796	my ($self, $path, $x, $y) = @_;	2864	my ($self, $path, $x, $y, $check, $done) = @_;
		2865
		2866	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2867	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2868	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2869	($path, $x, $y) = @$EMERGENCY_POSITION;
		2870	}
		2871
		2872	# do generation counting so two concurrent goto's will be executed in-order
		2873	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1797		2874
1798	$self->enter_link;	2875	$self->enter_link;
1799		2876
1800	(async {	2877	(async {
1801	my $map = cf::map::find $path;	2878	$Coro::current->{desc} = "player::goto $path $x $y";
		2879
		2880	# *tag paths override both path and x|y
		2881	if ($path =~ /^\*(.*)$/) {
		2882	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2883	my $ob = $obs[rand @obs];
		2884
		2885	# see if we actually can go there
		2886	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2887	$ob = $obs[rand @obs];
		2888	} else {
		2889	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2890	}
		2891	# else put us there anyways for now #d#
		2892
		2893	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2894	} else {
		2895	($path, $x, $y) = (undef, undef, undef);
		2896	}
		2897	}
		2898
		2899	my $map = eval {
		2900	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2901
		2902	if ($map) {
1802	$map = $map->customise_for ($self) if $map;	2903	$map = $map->customise_for ($self);
1803		2904	$map = $check->($map, $x, $y, $self) if $check && $map;
1804	# warn "entering ", $map->path, " at ($x, $y)\n"	2905	} else {
1805	# if $map;
1806
1807	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2906	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2907	}
1808		2908
		2909	$map
		2910	};
		2911
		2912	if ($@) {
		2913	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2914	LOG llevError | logBacktrace, Carp::longmess $@;
		2915	}
		2916
		2917	if ($gen == $self->{_goto_generation}) {
		2918	delete $self->{_goto_generation};
1809	$self->leave_link ($map, $x, $y);	2919	$self->leave_link ($map, $x, $y);
		2920	}
		2921
		2922	$done->($self) if $done;
1810	})->prio (1);	2923	})->prio (1);
1811	}	2924	}
1812		2925
1813	=item $player_object->enter_exit ($exit_object)	2926	=item $player_object->enter_exit ($exit_object)
1814		2927
…		…
1834	}	2947	}
1835		2948
1836	sub prepare_random_map {	2949	sub prepare_random_map {
1837	my ($exit) = @_;	2950	my ($exit) = @_;
1838		2951
1839	my $guard = cf::lock_acquire "exit_prepare:$exit";
1840
1841	# all this does is basically replace the /! path by	2952	# all this does is basically replace the /! path by
1842	# a new random map path (?random/...) with a seed	2953	# a new random map path (?random/...) with a seed
1843	# that depends on the exit object	2954	# that depends on the exit object
1844		2955
1845	my $rmp = parse_random_map_params $exit->msg;	2956	my $rmp = parse_random_map_params $exit->msg;
1846		2957
1847	if ($exit->map) {	2958	if ($exit->map) {
1848	$rmp->{region} = $exit->map->region_name;	2959	$rmp->{region} = $exit->region->name;
1849	$rmp->{origin_map} = $exit->map->path;	2960	$rmp->{origin_map} = $exit->map->path;
1850	$rmp->{origin_x} = $exit->x;	2961	$rmp->{origin_x} = $exit->x;
1851	$rmp->{origin_y} = $exit->y;	2962	$rmp->{origin_y} = $exit->y;
		2963
		2964	$exit->map->touch;
1852	}	2965	}
1853		2966
1854	$rmp->{random_seed} ||= $exit->random_seed;	2967	$rmp->{random_seed} ||= $exit->random_seed;
1855		2968
1856	my $data = cf::to_json $rmp;	2969	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1857	my $md5 = Digest::MD5::md5_hex $data;	2970	my $md5 = Digest::MD5::md5_hex $data;
1858	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2971	my $meta = "$RANDOMDIR/$md5.meta";
1859		2972
1860	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2973	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1861	aio_write $fh, 0, (length $data), $data, 0;	2974	aio_write $fh, 0, (length $data), $data, 0;
1862	undef $fh;	2975	undef $fh;
1863	aio_rename "$meta~", $meta;	2976	aio_rename "$meta~", $meta;
1864		2977
		2978	my $slaying = "?random/$md5";
		2979
		2980	if ($exit->valid) {
1865	$exit->slaying ("?random/$md5");	2981	$exit->slaying ("?random/$md5");
1866	$exit->msg (undef);	2982	$exit->msg (undef);
		2983	}
1867	}	2984	}
1868	}	2985	}
1869		2986
1870	sub cf::object::player::enter_exit {	2987	sub cf::object::player::enter_exit {
1871	my ($self, $exit) = @_;	2988	my ($self, $exit) = @_;
…		…
1873	return unless $self->type == cf::PLAYER;	2990	return unless $self->type == cf::PLAYER;
1874		2991
1875	$self->enter_link;	2992	$self->enter_link;
1876		2993
1877	(async {	2994	(async {
1878	$self->deactivate_recursive; # just to be sure	2995	$Coro::current->{desc} = "enter_exit";
		2996
1879	unless (eval {	2997	unless (eval {
		2998	$self->deactivate_recursive; # just to be sure
		2999
		3000	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3001	my $x = $exit->stats->hp;
		3002	my $y = $exit->stats->sp;
		3003
		3004	# special map handling
		3005	my $slaying = $exit->slaying;
		3006
		3007	# special map handling
		3008	if ($slaying eq "/!") {
		3009	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3010
1880	prepare_random_map $exit	3011	prepare_random_map $exit
		3012	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3013
1881	if $exit->slaying eq "/!";	3014	$map = $exit->slaying;
1882		3015
1883	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	3016	} elsif ($slaying eq '!up') {
1884	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3017	$map = $exit->map->tile_path (cf::TILE_UP);
		3018	$x = $exit->x;
		3019	$y = $exit->y;
1885		3020
		3021	} elsif ($slaying eq '!down') {
		3022	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3023	$x = $exit->x;
		3024	$y = $exit->y;
		3025	}
		3026
		3027	$self->goto ($map, $x, $y);
		3028
		3029	# if exit is damned, update players death & WoR home-position
		3030	$self->contr->savebed ($map, $x, $y)
		3031	if $exit->flag (cf::FLAG_DAMNED);
		3032
1886	1;	3033	1
1887	}) {	3034	}) {
1888	$self->message ("Something went wrong deep within the crossfire server. "	3035	$self->message ("Something went wrong deep within the deliantra server. "
1889	. "I'll try to bring you back to the map you were before. "	3036	. "I'll try to bring you back to the map you were before. "
1890	. "Please report this to the dungeon master!",	3037	. "Please report this to the dungeon master!",
1891	cf::NDI_UNIQUE | cf::NDI_RED);	3038	cf::NDI_UNIQUE | cf::NDI_RED);
1892		3039
1893	warn "ERROR in enter_exit: $@";	3040	error "ERROR in enter_exit: $@";
1894	$self->leave_link;	3041	$self->leave_link;
1895	}	3042	}
1896	})->prio (1);	3043	})->prio (1);
1897	}	3044	}
1898		3045
…		…
1909		3056
1910	sub cf::client::send_drawinfo {	3057	sub cf::client::send_drawinfo {
1911	my ($self, $text, $flags) = @_;	3058	my ($self, $text, $flags) = @_;
1912		3059
1913	utf8::encode $text;	3060	utf8::encode $text;
1914	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3061	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1915	}	3062	}
1916		3063
		3064	=item $client->send_big_packet ($pkt)
		3065
		3066	Like C<send_packet>, but tries to compress large packets, and fragments
		3067	them as required.
		3068
		3069	=cut
		3070
		3071	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3072
		3073	sub cf::client::send_big_packet {
		3074	my ($self, $pkt) = @_;
		3075
		3076	# try lzf for large packets
		3077	$pkt = "lzf " . Compress::LZF::compress $pkt
		3078	if 1024 <= length $pkt and $self->{can_lzf};
		3079
		3080	# split very large packets
		3081	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3082	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3083	$pkt = "frag";
		3084	}
		3085
		3086	$self->send_packet ($pkt);
		3087	}
		3088
		3089	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3090
		3091	Send a drawinfo or msg packet to the client, formatting the msg for the
		3092	client if neccessary. C<$type> should be a string identifying the type of
		3093	the message, with C<log> being the default. If C<$color> is negative, suppress
		3094	the message unless the client supports the msg packet.
		3095
		3096	=cut
		3097
		3098	# non-persistent channels (usually the info channel)
		3099	our %CHANNEL = (
		3100	"c/motd" => {
		3101	id => "infobox",
		3102	title => "MOTD",
		3103	reply => undef,
		3104	tooltip => "The message of the day",
		3105	},
		3106	"c/identify" => {
		3107	id => "infobox",
		3108	title => "Identify",
		3109	reply => undef,
		3110	tooltip => "Items recently identified",
		3111	},
		3112	"c/examine" => {
		3113	id => "infobox",
		3114	title => "Examine",
		3115	reply => undef,
		3116	tooltip => "Signs and other items you examined",
		3117	},
		3118	"c/shopinfo" => {
		3119	id => "infobox",
		3120	title => "Shop Info",
		3121	reply => undef,
		3122	tooltip => "What your bargaining skill tells you about the shop",
		3123	},
		3124	"c/book" => {
		3125	id => "infobox",
		3126	title => "Book",
		3127	reply => undef,
		3128	tooltip => "The contents of a note or book",
		3129	},
		3130	"c/lookat" => {
		3131	id => "infobox",
		3132	title => "Look",
		3133	reply => undef,
		3134	tooltip => "What you saw there",
		3135	},
		3136	"c/who" => {
		3137	id => "infobox",
		3138	title => "Players",
		3139	reply => undef,
		3140	tooltip => "Shows players who are currently online",
		3141	},
		3142	"c/body" => {
		3143	id => "infobox",
		3144	title => "Body Parts",
		3145	reply => undef,
		3146	tooltip => "Shows which body parts you posess and are available",
		3147	},
		3148	"c/statistics" => {
		3149	id => "infobox",
		3150	title => "Statistics",
		3151	reply => undef,
		3152	tooltip => "Shows your primary statistics",
		3153	},
		3154	"c/skills" => {
		3155	id => "infobox",
		3156	title => "Skills",
		3157	reply => undef,
		3158	tooltip => "Shows your experience per skill and item power",
		3159	},
		3160	"c/shopitems" => {
		3161	id => "infobox",
		3162	title => "Shop Items",
		3163	reply => undef,
		3164	tooltip => "Shows the items currently for sale in this shop",
		3165	},
		3166	"c/resistances" => {
		3167	id => "infobox",
		3168	title => "Resistances",
		3169	reply => undef,
		3170	tooltip => "Shows your resistances",
		3171	},
		3172	"c/pets" => {
		3173	id => "infobox",
		3174	title => "Pets",
		3175	reply => undef,
		3176	tooltip => "Shows information abotu your pets/a specific pet",
		3177	},
		3178	"c/perceiveself" => {
		3179	id => "infobox",
		3180	title => "Perceive Self",
		3181	reply => undef,
		3182	tooltip => "You gained detailed knowledge about yourself",
		3183	},
		3184	"c/uptime" => {
		3185	id => "infobox",
		3186	title => "Uptime",
		3187	reply => undef,
		3188	tooltip => "How long the server has been running since last restart",
		3189	},
		3190	"c/mapinfo" => {
		3191	id => "infobox",
		3192	title => "Map Info",
		3193	reply => undef,
		3194	tooltip => "Information related to the maps",
		3195	},
		3196	"c/party" => {
		3197	id => "party",
		3198	title => "Party",
		3199	reply => "gsay ",
		3200	tooltip => "Messages and chat related to your party",
		3201	},
		3202	"c/death" => {
		3203	id => "death",
		3204	title => "Death",
		3205	reply => undef,
		3206	tooltip => "Reason for and more info about your most recent death",
		3207	},
		3208	"c/say" => $SAY_CHANNEL,
		3209	"c/chat" => $CHAT_CHANNEL,
		3210	);
		3211
		3212	sub cf::client::send_msg {
		3213	my ($self, $channel, $msg, $color, @extra) = @_;
		3214
		3215	$msg = $self->pl->expand_cfpod ($msg)
		3216	unless $color & cf::NDI_VERBATIM;
		3217
		3218	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3219
		3220	# check predefined channels, for the benefit of C
		3221	if ($CHANNEL{$channel}) {
		3222	$channel = $CHANNEL{$channel};
		3223
		3224	$self->ext_msg (channel_info => $channel);
		3225	$channel = $channel->{id};
		3226
		3227	} elsif (ref $channel) {
		3228	# send meta info to client, if not yet sent
		3229	unless (exists $self->{channel}{$channel->{id}}) {
		3230	$self->{channel}{$channel->{id}} = $channel;
		3231	$self->ext_msg (channel_info => $channel);
		3232	}
		3233
		3234	$channel = $channel->{id};
		3235	}
		3236
		3237	return unless @extra || length $msg;
		3238
		3239	# default colour, mask it out
		3240	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3241	if $color & cf::NDI_DEF;
		3242
		3243	my $pkt = "msg "
		3244	. $self->{json_coder}->encode (
		3245	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3246	);
		3247
		3248	$self->send_big_packet ($pkt);
		3249	}
		3250
		3251	=item $client->ext_msg ($type, @msg)
		3252
		3253	Sends an ext event to the client.
		3254
		3255	=cut
		3256
		3257	sub cf::client::ext_msg($$@) {
		3258	my ($self, $type, @msg) = @_;
		3259
		3260	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3261	}
1917		3262
1918	=item $success = $client->query ($flags, "text", \&cb)	3263	=item $success = $client->query ($flags, "text", \&cb)
1919		3264
1920	Queues a query to the client, calling the given callback with	3265	Queues a query to the client, calling the given callback with
1921	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3266	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1922	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3267	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1923		3268
1924	Queries can fail, so check the return code. Or don't, as queries will become	3269	Queries can fail, so check the return code. Or don't, as queries will
1925	reliable at some point in the future.	3270	become reliable at some point in the future.
1926		3271
1927	=cut	3272	=cut
1928		3273
1929	sub cf::client::query {	3274	sub cf::client::query {
1930	my ($self, $flags, $text, $cb) = @_;	3275	my ($self, $flags, $text, $cb) = @_;
…		…
1938	utf8::encode $text;	3283	utf8::encode $text;
1939	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3284	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1940		3285
1941	$self->send_packet ($self->{query_queue}[0][0])	3286	$self->send_packet ($self->{query_queue}[0][0])
1942	if @{ $self->{query_queue} } == 1;	3287	if @{ $self->{query_queue} } == 1;
		3288
		3289	1
1943	}	3290	}
1944		3291
1945	cf::client->attach (	3292	cf::client->attach (
		3293	on_connect => sub {
		3294	my ($ns) = @_;
		3295
		3296	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3297	},
1946	on_reply => sub {	3298	on_reply => sub {
1947	my ($ns, $msg) = @_;	3299	my ($ns, $msg) = @_;
1948		3300
1949	# this weird shuffling is so that direct followup queries	3301	# this weird shuffling is so that direct followup queries
1950	# get handled first	3302	# get handled first
1951	my $queue = delete $ns->{query_queue}	3303	my $queue = delete $ns->{query_queue}
1952	or return; # be conservative, not sure how that can happen, but we saw a crash here	3304	or return; # be conservative, not sure how that can happen, but we saw a crash here
1953		3305
1954	(shift @$queue)->[1]->($msg);	3306	(shift @$queue)->[1]->($msg);
		3307	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1955		3308
1956	push @{ $ns->{query_queue} }, @$queue;	3309	push @{ $ns->{query_queue} }, @$queue;
1957		3310
1958	if (@{ $ns->{query_queue} } == @$queue) {	3311	if (@{ $ns->{query_queue} } == @$queue) {
1959	if (@$queue) {	3312	if (@$queue) {
…		…
1961	} else {	3314	} else {
1962	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3315	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1963	}	3316	}
1964	}	3317	}
1965	},	3318	},
		3319	on_exticmd => sub {
		3320	my ($ns, $buf) = @_;
		3321
		3322	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3323
		3324	if (ref $msg) {
		3325	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3326
		3327	if (my $cb = $EXTIACMD{$type}) {
		3328	$cb->(
		3329	$ns,
		3330	sub {
		3331	$ns->ext_msg ("reply-$reply", @_)
		3332	if $reply;
		3333	},
		3334	@payload
		3335	);
		3336	} else {
		3337	my @reply;
		3338
		3339	if (my $cb = $EXTICMD{$type}) {
		3340	@reply = $cb->($ns, @payload);
		3341	}
		3342
		3343	$ns->ext_msg ("reply-$reply", @reply)
		3344	if $reply;
		3345	}
		3346	} else {
		3347	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3348	}
		3349
		3350	cf::override;
		3351	},
1966	);	3352	);
1967		3353
1968	=item $client->async (\&cb)	3354	=item $client->async (\&cb)
1969		3355
1970	Create a new coroutine, running the specified callback. The coroutine will	3356	Create a new coroutine, running the specified callback. The coroutine will
…		…
1986		3372
1987	$coro	3373	$coro
1988	}	3374	}
1989		3375
1990	cf::client->attach (	3376	cf::client->attach (
1991	on_destroy => sub {	3377	on_client_destroy => sub {
1992	my ($ns) = @_;	3378	my ($ns) = @_;
1993		3379
1994	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3380	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1995	},	3381	},
1996	);	3382	);
…		…
2011	our $safe = new Safe "safe";	3397	our $safe = new Safe "safe";
2012	our $safe_hole = new Safe::Hole;	3398	our $safe_hole = new Safe::Hole;
2013		3399
2014	$SIG{FPE} = 'IGNORE';	3400	$SIG{FPE} = 'IGNORE';
2015		3401
2016	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3402	$safe->permit_only (Opcode::opset qw(
		3403	:base_core :base_mem :base_orig :base_math :base_loop
		3404	grepstart grepwhile mapstart mapwhile
		3405	sort time
		3406	));
2017		3407
2018	# here we export the classes and methods available to script code	3408	# here we export the classes and methods available to script code
2019		3409
2020	=pod	3410	=pod
2021		3411
2022	The following fucntions and emthods are available within a safe environment:	3412	The following functions and methods are available within a safe environment:
2023		3413
2024	cf::object contr pay_amount pay_player map	3414	cf::object
		3415	contr pay_amount pay_player map x y force_find force_add destroy
		3416	insert remove name archname title slaying race decrease split
		3417	value
		3418
2025	cf::object::player player	3419	cf::object::player
2026	cf::player peaceful	3420	player
2027	cf::map trigger	3421
		3422	cf::player
		3423	peaceful
		3424
		3425	cf::map
		3426	trigger
2028		3427
2029	=cut	3428	=cut
2030		3429
2031	for (	3430	for (
2032	["cf::object" => qw(contr pay_amount pay_player map)],	3431	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3432	insert remove inv nrof name archname title slaying race
		3433	decrease split destroy change_exp value msg lore send_msg)],
2033	["cf::object::player" => qw(player)],	3434	["cf::object::player" => qw(player)],
2034	["cf::player" => qw(peaceful)],	3435	["cf::player" => qw(peaceful send_msg)],
2035	["cf::map" => qw(trigger)],	3436	["cf::map" => qw(trigger)],
2036	) {	3437	) {
2037	no strict 'refs';
2038	my ($pkg, @funs) = @$_;	3438	my ($pkg, @funs) = @$_;
2039	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3439	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2040	for @funs;	3440	for @funs;
2041	}	3441	}
2042		3442
…		…
2057		3457
2058	my $qcode = $code;	3458	my $qcode = $code;
2059	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3459	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2060	$qcode =~ s/\n/\\n/g;	3460	$qcode =~ s/\n/\\n/g;
2061		3461
		3462	%vars = (_dummy => 0) unless %vars;
		3463
		3464	my @res;
2062	local $_;	3465	local $_;
2063	local @safe::cf::_safe_eval_args = values %vars;
2064		3466
2065	my $eval =	3467	my $eval =
2066	"do {\n"	3468	"do {\n"
2067	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3469	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2068	. "#line 0 \"{$qcode}\"\n"	3470	. "#line 0 \"{$qcode}\"\n"
2069	. $code	3471	. $code
2070	. "\n}"	3472	. "\n}"
2071	;	3473	;
2072		3474
		3475	if ($CFG{safe_eval}) {
2073	sub_generation_inc;	3476	sub_generation_inc;
		3477	local @safe::cf::_safe_eval_args = values %vars;
2074	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3478	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2075	sub_generation_inc;	3479	sub_generation_inc;
		3480	} else {
		3481	local @cf::_safe_eval_args = values %vars;
		3482	@res = wantarray ? eval eval : scalar eval $eval;
		3483	}
2076		3484
2077	if ($@) {	3485	if ($@) {
2078	warn "$@";	3486	warn "$@",
2079	warn "while executing safe code '$code'\n";	3487	"while executing safe code '$code'\n",
2080	warn "with arguments " . (join " ", %vars) . "\n";	3488	"with arguments " . (join " ", %vars) . "\n";
2081	}	3489	}
2082		3490
2083	wantarray ? @res : $res[0]	3491	wantarray ? @res : $res[0]
2084	}	3492	}
2085		3493
…		…
2099	=cut	3507	=cut
2100		3508
2101	sub register_script_function {	3509	sub register_script_function {
2102	my ($fun, $cb) = @_;	3510	my ($fun, $cb) = @_;
2103		3511
2104	no strict 'refs';	3512	$fun = "safe::$fun" if $CFG{safe_eval};
2105	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3513	*$fun = $safe_hole->wrap ($cb);
2106	}	3514	}
2107		3515
2108	=back	3516	=back
2109		3517
2110	=cut	3518	=cut
2111		3519
2112	#############################################################################	3520	#############################################################################
		3521	# the server's init and main functions
2113		3522
2114	=head2 EXTENSION DATABASE SUPPORT	3523	our %FACEHASH; # hash => idx, #d# HACK for http server
2115		3524
2116	Crossfire maintains a very simple database for extension use. It can	3525	# internal api, not fianlised
2117	currently store anything that can be serialised using Storable, which	3526	sub set_face {
2118	excludes objects.	3527	my ($name, $type, $data) = @_;
2119		3528
2120	The parameter C<$family> should best start with the name of the extension	3529	my $idx = cf::face::find $name;
2121	using it, it should be unique.
2122		3530
2123	=over 4	3531	if ($idx) {
2124		3532	delete $FACEHASH{cf::face::get_chksum $idx};
2125	=item $hashref = cf::db_get $family
2126
2127	Return a hashref for use by the extension C<$family>, which can be
2128	modified. After modifications, you have to call C<cf::db_dirty> or
2129	C<cf::db_sync>.
2130
2131	=item $value = cf::db_get $family => $key
2132
2133	Returns a single value from the database
2134
2135	=item cf::db_put $family => $hashref
2136
2137	Stores the given family hashref into the database. Updates are delayed, if
2138	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2139
2140	=item cf::db_put $family => $key => $value
2141
2142	Stores the given C<$value> in the family hash. Updates are delayed, if you
2143	want the data to be synced to disk immediately, use C<cf::db_sync>.
2144
2145	=item cf::db_dirty
2146
2147	Marks the database as dirty, to be updated at a later time.
2148
2149	=item cf::db_sync
2150
2151	Immediately write the database to disk I<if it is dirty>.
2152
2153	=cut
2154
2155	our $DB;
2156
2157	{
2158	my $path = cf::localdir . "/database.pst";
2159
2160	sub db_load() {
2161	$DB = stat $path ? Storable::retrieve $path : { };
2162	}
2163
2164	my $pid;
2165
2166	sub db_save() {
2167	waitpid $pid, 0 if $pid;
2168	if (0 == ($pid = fork)) {
2169	$DB->{_meta}{version} = 1;
2170	Storable::nstore $DB, "$path~";
2171	rename "$path~", $path;
2172	cf::_exit 0 if defined $pid;
2173	}
2174	}
2175
2176	my $dirty;
2177
2178	sub db_sync() {
2179	db_save if $dirty;
2180	undef $dirty;
2181	}
2182
2183	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2184	db_sync;
2185	});
2186
2187	sub db_dirty() {
2188	$dirty = 1;
2189	$idle->start;
2190	}
2191
2192	sub db_get($;$) {
2193	@_ >= 2
2194	? $DB->{$_[0]}{$_[1]}
2195	: ($DB->{$_[0]} ||= { })
2196	}
2197
2198	sub db_put($$;$) {
2199	if (@_ >= 3) {
2200	$DB->{$_[0]}{$_[1]} = $_[2];
2201	} else {	3533	} else {
2202	$DB->{$_[0]} = $_[1];	3534	$idx = cf::face::alloc $name;
2203	}	3535	}
2204	db_dirty;	3536
		3537	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3538
		3539	cf::face::set_type $idx, $type;
		3540	cf::face::set_data $idx, 0, $data, $hash;
		3541	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3542	$FACEHASH{$hash} = $idx;#d#
		3543
		3544	$idx
		3545	}
		3546
		3547	sub load_facedata($) {
		3548	my ($path) = @_;
		3549
		3550	# HACK to clear player env face cache, we need some signal framework
		3551	# for this (global event?)
		3552	%ext::player_env::MUSIC_FACE_CACHE = ();
		3553
		3554	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3555
		3556	trace "loading facedata from $path\n";
		3557
		3558	my $facedata = decode_storable load_file $path;
		3559
		3560	$facedata->{version} == 2
		3561	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3562
		3563	cf::cede_to_tick;
		3564
2205	}	3565	{
		3566	my $faces = delete $facedata->{faceinfo};
2206		3567
2207	cf::global->attach (	3568	for my $face (sort keys %$faces) {
2208	prio => 10000,	3569	my $info = $faces->{$face};
2209	on_cleanup => sub {	3570	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2210	db_sync;	3571
		3572	cf::face::set_visibility $idx, $info->{visibility};
		3573	cf::face::set_magicmap $idx, $info->{magicmap};
		3574	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3575	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3576	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3577	$FACEHASH{$info->{hash64}} = $idx;#d#
		3578
		3579	cf::cede_to_tick;
2211	},	3580	}
2212	);
2213	}
2214		3581
2215	#############################################################################	3582	while (my ($face, $info) = each %$faces) {
2216	# the server's main()	3583	next unless $info->{smooth};
2217		3584
2218	sub cfg_load {	3585	my $idx = cf::face::find $face
2219	open my $fh, "<:utf8", cf::confdir . "/config"	3586	or next;
2220	or return;
2221		3587
2222	local $/;	3588	if (my $smooth = cf::face::find $info->{smooth}) {
2223	*CFG = YAML::Syck::Load <$fh>;	3589	cf::face::set_smooth $idx, $smooth;
		3590	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3591	} else {
		3592	error "smooth face '$info->{smooth}' not found for face '$face'";
		3593	}
2224		3594
		3595	cf::cede_to_tick;
		3596	}
		3597	}
		3598
		3599	{
		3600	my $anims = delete $facedata->{animinfo};
		3601
		3602	while (my ($anim, $info) = each %$anims) {
		3603	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3604	cf::cede_to_tick;
		3605	}
		3606
		3607	cf::anim::invalidate_all; # d'oh
		3608	}
		3609
		3610	{
		3611	my $res = delete $facedata->{resource};
		3612
		3613	while (my ($name, $info) = each %$res) {
		3614	if (defined (my $type = $info->{type})) {
		3615	# TODO: different hash - must free and use new index, or cache ixface data queue
		3616	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3617
		3618	cf::face::set_type $idx, $type;
		3619	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3620	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3621	$FACEHASH{$info->{hash}} = $idx;#d#
		3622	} else {
		3623	# $RESOURCE{$name} = $info; # unused
		3624	}
		3625
		3626	cf::cede_to_tick;
		3627	}
		3628	}
		3629
		3630	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3631
		3632	1
		3633	}
		3634
		3635	register_exticmd fx_want => sub {
		3636	my ($ns, $want) = @_;
		3637
		3638	while (my ($k, $v) = each %$want) {
		3639	$ns->fx_want ($k, $v);
		3640	}
		3641	};
		3642
		3643	sub load_resource_file($) {
		3644	my $guard = lock_acquire "load_resource_file";
		3645
		3646	my $status = load_resource_file_ $_[0];
		3647	get_slot 0.1, 100;
		3648	cf::arch::commit_load;
		3649
		3650	$status
		3651	}
		3652
		3653	sub reload_exp_table {
		3654	_reload_exp_table;
		3655
		3656	set_face "res/exp_table" => FT_RSRC,
		3657	JSON::XS->new->utf8->canonical->encode (
		3658	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3659	);
		3660	}
		3661
		3662	sub reload_materials {
		3663	_reload_materials;
		3664	}
		3665
		3666	sub reload_regions {
		3667	# HACK to clear player env face cache, we need some signal framework
		3668	# for this (global event?)
		3669	%ext::player_env::MUSIC_FACE_CACHE = ();
		3670
		3671	load_resource_file "$MAPDIR/regions"
		3672	or die "unable to load regions file\n";
		3673
		3674	for (cf::region::list) {
		3675	$_->{match} = qr/$_->{match}/
		3676	if exists $_->{match};
		3677	}
		3678	}
		3679
		3680	sub reload_facedata {
		3681	load_facedata "$DATADIR/facedata"
		3682	or die "unable to load facedata\n";
		3683	}
		3684
		3685	sub reload_archetypes {
		3686	load_resource_file "$DATADIR/archetypes"
		3687	or die "unable to load archetypes\n";
		3688
		3689	set_face "res/skill_info" => FT_RSRC,
		3690	JSON::XS->new->utf8->canonical->encode (
		3691	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3692	);
		3693	set_face "res/spell_paths" => FT_RSRC,
		3694	JSON::XS->new->utf8->canonical->encode (
		3695	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3696	);
		3697	}
		3698
		3699	sub reload_treasures {
		3700	load_resource_file "$DATADIR/treasures"
		3701	or die "unable to load treasurelists\n";
		3702	}
		3703
		3704	sub reload_sound {
		3705	trace "loading sound config from $DATADIR/sound\n";
		3706
		3707	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3708
		3709	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3710	my $sound = $soundconf->{compat}[$_]
		3711	or next;
		3712
		3713	my $face = cf::face::find "sound/$sound->[1]";
		3714	cf::sound::set $sound->[0] => $face;
		3715	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3716	}
		3717
		3718	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3719	my $face = cf::face::find "sound/$v";
		3720	cf::sound::set $k => $face;
		3721	}
		3722	}
		3723
		3724	sub reload_resources {
		3725	trace "reloading resource files...\n";
		3726
		3727	reload_materials;
		3728	reload_facedata;
		3729	reload_exp_table;
		3730	reload_sound;
		3731	reload_archetypes;
		3732	reload_regions;
		3733	reload_treasures;
		3734
		3735	trace "finished reloading resource files\n";
		3736	}
		3737
		3738	sub reload_config {
		3739	trace "reloading config file...\n";
		3740
		3741	my $config = load_file "$CONFDIR/config";
		3742	utf8::decode $config;
		3743	*CFG = decode_yaml $config;
		3744
2225	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3745	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2226		3746
2227	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3747	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2228	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3748	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2229		3749
2230	if (exists $CFG{mlockall}) {	3750	if (exists $CFG{mlockall}) {
…		…
2234	};	3754	};
2235	warn $@ if $@;	3755	warn $@ if $@;
2236	}	3756	}
2237	}	3757	}
2238		3758
		3759	sub pidfile() {
		3760	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3761	or die "$PIDFILE: $!";
		3762	flock $fh, &Fcntl::LOCK_EX
		3763	or die "$PIDFILE: flock: $!";
		3764	$fh
		3765	}
		3766
		3767	# make sure only one server instance is running at any one time
		3768	sub atomic {
		3769	my $fh = pidfile;
		3770
		3771	my $pid = <$fh>;
		3772	kill 9, $pid if $pid > 0;
		3773
		3774	seek $fh, 0, 0;
		3775	print $fh $$;
		3776	}
		3777
		3778	sub main_loop {
		3779	trace "EV::loop starting\n";
		3780	if (1) {
		3781	EV::loop;
		3782	}
		3783	trace "EV::loop returned\n";
		3784	goto &main_loop unless $REALLY_UNLOOP;
		3785	}
		3786
2239	sub main {	3787	sub main {
		3788	cf::init_globals; # initialise logging
		3789
		3790	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3791	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3792	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3793	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3794
		3795	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3796
2240	# we must not ever block the main coroutine	3797	# we must not ever block the main coroutine
2241	local $Coro::idle = sub {	3798	$Coro::idle = sub {
2242	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3799	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2243	(async {	3800	(async {
2244	Event::one_event;	3801	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3802	EV::loop EV::LOOP_ONESHOT;
2245	})->prio (Coro::PRIO_MAX);	3803	})->prio (Coro::PRIO_MAX);
2246	};	3804	};
2247		3805
2248	cfg_load;	3806	evthread_start IO::AIO::poll_fileno;
2249	db_load;	3807
		3808	cf::sync_job {
		3809	cf::incloader::init ();
		3810
		3811	db_init;
		3812
		3813	cf::init_anim;
		3814	cf::init_attackmess;
		3815	cf::init_dynamic;
		3816
		3817	cf::load_settings;
		3818
		3819	reload_resources;
		3820	reload_config;
		3821
		3822	cf::init_uuid;
		3823	cf::init_signals;
		3824	cf::init_skills;
		3825
		3826	cf::init_beforeplay;
		3827
		3828	atomic;
		3829
2250	load_extensions;	3830	load_extensions;
2251		3831
2252	$TICK_WATCHER->start;	3832	utime time, time, $RUNTIMEFILE;
2253	Event::loop;	3833
		3834	# no (long-running) fork's whatsoever before this point(!)
		3835	use POSIX ();
		3836	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3837
		3838	cf::_post_init 0;
		3839	};
		3840
		3841	cf::object::thawer::errors_are_fatal 0;
		3842	info "parse errors in files are no longer fatal from this point on.\n";
		3843
		3844	AE::postpone {
		3845	undef &main; # free gobs of memory :)
		3846	};
		3847
		3848	goto &main_loop;
2254	}	3849	}
2255		3850
2256	#############################################################################	3851	#############################################################################
2257	# initialisation and cleanup	3852	# initialisation and cleanup
2258		3853
2259	# install some emergency cleanup handlers	3854	# install some emergency cleanup handlers
2260	BEGIN {	3855	BEGIN {
		3856	our %SIGWATCHER = ();
2261	for my $signal (qw(INT HUP TERM)) {	3857	for my $signal (qw(INT HUP TERM)) {
2262	Event->signal (	3858	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2263	data => WF_AUTOCANCEL,
2264	signal => $signal,
2265	cb => sub {
2266	cf::cleanup "SIG$signal";	3859	cf::cleanup "SIG$signal";
2267	},
2268	);	3860	};
		3861	}
		3862	}
		3863
		3864	sub write_runtime_sync {
		3865	my $t0 = AE::time;
		3866
		3867	# first touch the runtime file to show we are still running:
		3868	# the fsync below can take a very very long time.
		3869
		3870	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3871
		3872	my $guard = cf::lock_acquire "write_runtime";
		3873
		3874	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3875	or return;
		3876
		3877	my $value = $cf::RUNTIME + 90 + 10;
		3878	# 10 is the runtime save interval, for a monotonic clock
		3879	# 60 allows for the watchdog to kill the server.
		3880
		3881	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3882	and return;
		3883
		3884	# always fsync - this file is important
		3885	aio_fsync $fh
		3886	and return;
		3887
		3888	# touch it again to show we are up-to-date
		3889	aio_utime $fh, undef, undef;
		3890
		3891	close $fh
		3892	or return;
		3893
		3894	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3895	and return;
		3896
		3897	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3898
2269	}	3899	1
		3900	}
		3901
		3902	our $uuid_lock;
		3903	our $uuid_skip;
		3904
		3905	sub write_uuid_sync($) {
		3906	$uuid_skip ||= $_[0];
		3907
		3908	return if $uuid_lock;
		3909	local $uuid_lock = 1;
		3910
		3911	my $uuid = "$LOCALDIR/uuid";
		3912
		3913	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3914	or return;
		3915
		3916	my $value = uuid_seq uuid_cur;
		3917
		3918	unless ($value) {
		3919	info "cowardly refusing to write zero uuid value!\n";
		3920	return;
		3921	}
		3922
		3923	my $value = uuid_str $value + $uuid_skip;
		3924	$uuid_skip = 0;
		3925
		3926	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3927	and return;
		3928
		3929	# always fsync - this file is important
		3930	aio_fsync $fh
		3931	and return;
		3932
		3933	close $fh
		3934	or return;
		3935
		3936	aio_rename "$uuid~", $uuid
		3937	and return;
		3938
		3939	trace "uuid file written ($value).\n";
		3940
		3941	1
		3942
		3943	}
		3944
		3945	sub write_uuid($$) {
		3946	my ($skip, $sync) = @_;
		3947
		3948	$sync ? write_uuid_sync $skip
		3949	: async { write_uuid_sync $skip };
2270	}	3950	}
2271		3951
2272	sub emergency_save() {	3952	sub emergency_save() {
2273	my $freeze_guard = cf::freeze_mainloop;	3953	my $freeze_guard = cf::freeze_mainloop;
2274		3954
2275	warn "enter emergency perl save\n";	3955	info "emergency_perl_save: enter\n";
		3956
		3957	# this is a trade-off: we want to be very quick here, so
		3958	# save all maps without fsync, and later call a global sync
		3959	# (which in turn might be very very slow)
		3960	local $USE_FSYNC = 0;
2276		3961
2277	cf::sync_job {	3962	cf::sync_job {
		3963	cf::write_runtime_sync; # external watchdog should not bark
		3964
2278	# use a peculiar iteration method to avoid tripping on perl	3965	# use a peculiar iteration method to avoid tripping on perl
2279	# refcount bugs in for. also avoids problems with players	3966	# refcount bugs in for. also avoids problems with players
2280	# and maps saved/destroyed asynchronously.	3967	# and maps saved/destroyed asynchronously.
2281	warn "begin emergency player save\n";	3968	info "emergency_perl_save: begin player save\n";
2282	for my $login (keys %cf::PLAYER) {	3969	for my $login (keys %cf::PLAYER) {
2283	my $pl = $cf::PLAYER{$login} or next;	3970	my $pl = $cf::PLAYER{$login} or next;
2284	$pl->valid or next;	3971	$pl->valid or next;
		3972	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2285	$pl->save;	3973	$pl->save;
2286	}	3974	}
2287	warn "end emergency player save\n";	3975	info "emergency_perl_save: end player save\n";
2288		3976
2289	warn "begin emergency map save\n";	3977	cf::write_runtime_sync; # external watchdog should not bark
		3978
		3979	info "emergency_perl_save: begin map save\n";
2290	for my $path (keys %cf::MAP) {	3980	for my $path (keys %cf::MAP) {
2291	my $map = $cf::MAP{$path} or next;	3981	my $map = $cf::MAP{$path} or next;
2292	$map->valid or next;	3982	$map->valid or next;
2293	$map->save;	3983	$map->save;
2294	}	3984	}
2295	warn "end emergency map save\n";	3985	info "emergency_perl_save: end map save\n";
		3986
		3987	cf::write_runtime_sync; # external watchdog should not bark
		3988
		3989	info "emergency_perl_save: begin database checkpoint\n";
		3990	BDB::db_env_txn_checkpoint $DB_ENV;
		3991	info "emergency_perl_save: end database checkpoint\n";
		3992
		3993	info "emergency_perl_save: begin write uuid\n";
		3994	write_uuid_sync 1;
		3995	info "emergency_perl_save: end write uuid\n";
		3996
		3997	cf::write_runtime_sync; # external watchdog should not bark
		3998
		3999	trace "emergency_perl_save: syncing database to disk";
		4000	BDB::db_env_txn_checkpoint $DB_ENV;
		4001
		4002	info "emergency_perl_save: starting sync\n";
		4003	IO::AIO::aio_sync sub {
		4004	info "emergency_perl_save: finished sync\n";
		4005	};
		4006
		4007	cf::write_runtime_sync; # external watchdog should not bark
		4008
		4009	trace "emergency_perl_save: flushing outstanding aio requests";
		4010	while (IO::AIO::nreqs || BDB::nreqs) {
		4011	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4012	}
		4013
		4014	cf::write_runtime_sync; # external watchdog should not bark
2296	};	4015	};
2297		4016
2298	warn "leave emergency perl save\n";	4017	info "emergency_perl_save: leave\n";
2299	}	4018	}
2300		4019
		4020	sub post_cleanup {
		4021	my ($make_core) = @_;
		4022
		4023	IO::AIO::flush;
		4024
		4025	error Carp::longmess "post_cleanup backtrace"
		4026	if $make_core;
		4027
		4028	my $fh = pidfile;
		4029	unlink $PIDFILE if <$fh> == $$;
		4030	}
		4031
		4032	# a safer delete_package, copied from Symbol
		4033	sub clear_package($) {
		4034	my $pkg = shift;
		4035
		4036	# expand to full symbol table name if needed
		4037	unless ($pkg =~ /^main::.*::$/) {
		4038	$pkg = "main$pkg" if $pkg =~ /^::/;
		4039	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4040	$pkg .= '::' unless $pkg =~ /::$/;
		4041	}
		4042
		4043	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4044	my $stem_symtab = *{$stem}{HASH};
		4045
		4046	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4047	or return;
		4048
		4049	# clear all symbols
		4050	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4051	for my $name (keys %$leaf_symtab) {
		4052	_gv_clear *{"$pkg$name"};
		4053	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4054	}
		4055	}
		4056
2301	sub reload() {	4057	sub do_reload_perl() {
2302	# can/must only be called in main	4058	# can/must only be called in main
2303	if ($Coro::current != $Coro::main) {	4059	unless (in_main) {
2304	warn "can only reload from main coroutine";	4060	error "can only reload from main coroutine";
2305	return;	4061	return;
2306	}	4062	}
2307		4063
2308	warn "reloading...";	4064	return if $RELOAD++;
2309		4065
2310	warn "cancelling server ticker";	4066	my $t1 = AE::time;
2311	$TICK_WATCHER->cancel;
2312		4067
		4068	while ($RELOAD) {
		4069	cf::get_slot 0.1, -1, "reload_perl";
		4070	info "perl_reload: reloading...";
		4071
		4072	trace "perl_reload: entering sync_job";
		4073
		4074	cf::sync_job {
2313	cf::emergency_save;	4075	#cf::emergency_save;
2314		4076
2315	eval {
2316	# if anything goes wrong in here, we should simply crash as we already saved
2317
2318	warn "syncing database to disk";
2319	cf::db_sync;
2320
2321	warn "cancelling all WF_AUTOCANCEL watchers";
2322	for (Event::all_watchers) {
2323	$_->cancel if $_->data & WF_AUTOCANCEL;
2324	}
2325
2326	warn "flushing outstanding aio requests";
2327	for (;;) {
2328	IO::AIO::flush;
2329	Coro::cede;
2330	last unless IO::AIO::nreqs;
2331	warn "iterate...";
2332	}
2333
2334	warn "cancelling all extension coros";	4077	trace "perl_reload: cancelling all extension coros";
2335	$_->cancel for values %EXT_CORO;	4078	$_->cancel for values %EXT_CORO;
2336	%EXT_CORO = ();	4079	%EXT_CORO = ();
2337		4080
2338	warn "removing commands";	4081	trace "perl_reload: removing commands";
2339	%COMMAND = ();	4082	%COMMAND = ();
2340		4083
2341	warn "removing ext commands";	4084	trace "perl_reload: removing ext/exti commands";
2342	%EXTCMD = ();	4085	%EXTCMD = ();
		4086	%EXTICMD = ();
2343		4087
2344	warn "unloading/nuking all extensions";	4088	trace "perl_reload: unloading/nuking all extensions";
2345	for my $pkg (@EXTS) {	4089	for my $pkg (@EXTS) {
2346	warn "... unloading $pkg";	4090	trace "... unloading $pkg";
2347		4091
2348	if (my $cb = $pkg->can ("unload")) {	4092	if (my $cb = $pkg->can ("unload")) {
2349	eval {	4093	eval {
2350	$cb->($pkg);	4094	$cb->($pkg);
2351	1	4095	1
2352	} or warn "$pkg unloaded, but with errors: $@";	4096	} or error "$pkg unloaded, but with errors: $@";
		4097	}
		4098
		4099	trace "... clearing $pkg";
		4100	clear_package $pkg;
2353	}	4101	}
2354		4102
2355	warn "... nuking $pkg";
2356	Symbol::delete_package $pkg;
2357	}
2358
2359	warn "unloading all perl modules loaded from $LIBDIR";	4103	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2360	while (my ($k, $v) = each %INC) {	4104	while (my ($k, $v) = each %INC) {
2361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4105	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2362		4106
2363	warn "... unloading $k";	4107	trace "... unloading $k";
2364	delete $INC{$k};	4108	delete $INC{$k};
2365		4109
2366	$k =~ s/\.pm$//;	4110	$k =~ s/\.pm$//;
2367	$k =~ s/\//::/g;	4111	$k =~ s/\//::/g;
2368		4112
2369	if (my $cb = $k->can ("unload_module")) {	4113	if (my $cb = $k->can ("unload_module")) {
2370	$cb->();	4114	$cb->();
		4115	}
		4116
		4117	clear_package $k;
2371	}	4118	}
2372		4119
2373	Symbol::delete_package $k;
2374	}
2375
2376	warn "getting rid of safe::, as good as possible";	4120	trace "perl_reload: getting rid of safe::, as good as possible";
2377	Symbol::delete_package "safe::$_"	4121	clear_package "safe::$_"
2378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4122	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2379		4123
2380	warn "unloading cf.pm \"a bit\"";	4124	trace "perl_reload: unloading cf.pm \"a bit\"";
2381	delete $INC{"cf.pm"};	4125	delete $INC{"cf.pm"};
		4126	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2382		4127
2383	# don't, removes xs symbols, too,	4128	# don't, removes xs symbols, too,
2384	# and global variables created in xs	4129	# and global variables created in xs
2385	#Symbol::delete_package __PACKAGE__;	4130	#clear_package __PACKAGE__;
2386		4131
2387	warn "unload completed, starting to reload now";	4132	info "perl_reload: unload completed, starting to reload now";
2388		4133
2389	warn "reloading cf.pm";	4134	trace "perl_reload: reloading cf.pm";
2390	require cf;	4135	require cf;
2391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4136	cf::_connect_to_perl_1;
2392		4137
2393	warn "loading config and database again";	4138	trace "perl_reload: loading config and database again";
2394	cf::cfg_load;	4139	cf::reload_config;
2395	cf::db_load;
2396		4140
2397	warn "loading extensions";	4141	trace "perl_reload: loading extensions";
2398	cf::load_extensions;	4142	cf::load_extensions;
2399		4143
		4144	if ($REATTACH_ON_RELOAD) {
2400	warn "reattaching attachments to objects/players";	4145	trace "perl_reload: reattaching attachments to objects/players";
2401	_global_reattach;	4146	_global_reattach; # objects, sockets
2402	warn "reattaching attachments to maps";	4147	trace "perl_reload: reattaching attachments to maps";
2403	reattach $_ for values %MAP;	4148	reattach $_ for values %MAP;
		4149	trace "perl_reload: reattaching attachments to players";
		4150	reattach $_ for values %PLAYER;
		4151	}
2404		4152
2405	warn "restarting server ticker";	4153	cf::_post_init 1;
2406		4154
2407	$TICK_WATCHER->start;	4155	trace "perl_reload: leaving sync_job";
		4156
		4157	1
		4158	} or do {
		4159	error $@;
		4160	cf::cleanup "perl_reload: error, exiting.";
		4161	};
		4162
		4163	--$RELOAD;
		4164	}
		4165
		4166	$t1 = AE::time - $t1;
		4167	info "perl_reload: completed in ${t1}s\n";
		4168	};
		4169
		4170	our $RELOAD_WATCHER; # used only during reload
		4171
		4172	sub reload_perl() {
		4173	# doing reload synchronously and two reloads happen back-to-back,
		4174	# coro crashes during coro_state_free->destroy here.
		4175
		4176	$RELOAD_WATCHER ||= cf::async {
		4177	Coro::AIO::aio_wait cache_extensions;
		4178
		4179	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4180	do_reload_perl;
		4181	undef $RELOAD_WATCHER;
		4182	};
2408	};	4183	};
2409		4184	}
2410	if ($@) {
2411	warn $@;
2412	warn "error while reloading, exiting.";
2413	exit 1;
2414	}
2415
2416	warn "reloaded";
2417	};
2418
2419	our $RELOAD_WATCHER; # used only during reload
2420		4185
2421	register_command "reload" => sub {	4186	register_command "reload" => sub {
2422	my ($who, $arg) = @_;	4187	my ($who, $arg) = @_;
2423		4188
2424	if ($who->flag (FLAG_WIZ)) {	4189	if ($who->flag (FLAG_WIZ)) {
2425	$who->message ("reloading server.");	4190	$who->message ("reloading server.");
2426		4191	async {
2427	# doing reload synchronously and two reloads happen back-to-back,	4192	$Coro::current->{desc} = "perl_reload";
2428	# coro crashes during coro_state_free->destroy here.
2429
2430	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2431	reload;	4193	reload_perl;
2432	undef $RELOAD_WATCHER;
2433	});	4194	};
2434	}	4195	}
2435	};	4196	};
2436		4197
2437	unshift @INC, $LIBDIR;	4198	#############################################################################
2438		4199
2439	my $bug_warning = 0;	4200	my $bug_warning = 0;
2440		4201
2441	$TICK_WATCHER = Event->timer (	4202	sub wait_for_tick() {
2442	reentrant => 0,	4203	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2443	parked => 1,	4204
2444	prio => 0,	4205	$WAIT_FOR_TICK->wait;
2445	at => $NEXT_TICK || $TICK,	4206	}
2446	data => WF_AUTOCANCEL,	4207
2447	cb => sub {	4208	sub wait_for_tick_begin() {
		4209	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4210
		4211	my $signal = new Coro::Signal;
		4212	push @WAIT_FOR_TICK_BEGIN, $signal;
		4213	$signal->wait;
		4214	}
		4215
		4216	sub tick {
2448	if ($Coro::current != $Coro::main) {	4217	if ($Coro::current != $Coro::main) {
2449	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4218	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2450	unless ++$bug_warning > 10;	4219	unless ++$bug_warning > 10;
2451	return;	4220	return;
		4221	}
		4222
		4223	cf::one_tick; # one server iteration
		4224
		4225	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4226
		4227	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4228	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4229	Coro::async_pool {
		4230	$Coro::current->{desc} = "runtime saver";
		4231	write_runtime_sync
		4232	or error "ERROR: unable to write runtime file: $!";
2452	}	4233	};
		4234	}
2453		4235
2454	$NOW = Event::time;	4236	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2455		4237	$sig->send;
2456	cf::server_tick; # one server iteration	4238	}
2457	$RUNTIME += $TICK;
2458	$NEXT_TICK += $TICK;
2459
2460	$WAIT_FOR_TICK->broadcast;	4239	$WAIT_FOR_TICK->broadcast;
2461	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2462		4240
2463	# if we are delayed by four ticks or more, skip them all	4241	$LOAD = ($NOW - $TICK_START) / $TICK;
2464	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4242	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2465		4243
2466	$TICK_WATCHER->at ($NEXT_TICK);	4244	if (0) {
2467	$TICK_WATCHER->start;	4245	if ($NEXT_TICK) {
		4246	my $jitter = $TICK_START - $NEXT_TICK;
		4247	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4248	debug "jitter $JITTER\n";#d#
		4249	}
2468	},	4250	}
2469	);	4251	}
2470		4252
		4253	{
		4254	# configure BDB
		4255	info "initialising database";
		4256
		4257	BDB::min_parallel 16;
		4258	BDB::max_poll_reqs $TICK * 0.1;
		4259	#$AnyEvent::BDB::WATCHER->priority (1);
		4260
		4261	unless ($DB_ENV) {
		4262	$DB_ENV = BDB::db_env_create;
		4263	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4264	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4265	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4266	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4267	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4268
		4269	cf::sync_job {
		4270	eval {
		4271	BDB::db_env_open
		4272	$DB_ENV,
		4273	$BDBDIR,
		4274	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4275	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4276	0666;
		4277
		4278	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4279	};
		4280
		4281	cf::cleanup "db_env_open(db): $@" if $@;
		4282	};
		4283	}
		4284
		4285	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4286	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4287	};
		4288	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4289	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4290	};
		4291	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4292	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4293	};
		4294
		4295	info "database initialised";
		4296	}
		4297
		4298	{
		4299	# configure IO::AIO
		4300
		4301	info "initialising aio";
		4302	IO::AIO::min_parallel 8;
2471	IO::AIO::max_poll_time $TICK * 0.2;	4303	IO::AIO::max_poll_time $TICK * 0.1;
		4304	undef $AnyEvent::AIO::WATCHER;
		4305	info "aio initialised";
		4306	}
2472		4307
2473	$AIO_POLL_WATCHER = Event->io (	4308	our $_log_backtrace;
2474	fd => IO::AIO::poll_fileno,	4309	our $_log_backtrace_last;
2475	poll => 'r',
2476	prio => 5,
2477	data => WF_AUTOCANCEL,
2478	cb => \&IO::AIO::poll_cb,
2479	);
2480		4310
2481	$WRITE_RUNTIME_WATCHER = Event->timer (	4311	sub _log_backtrace {
2482	data => WF_AUTOCANCEL,	4312	my ($msg, @addr) = @_;
2483	after => 1,	4313
2484	interval => 10,	4314	$msg =~ s/\n$//;
2485	prio => 6, # keep it lowest so it acts like a watchdog	4315
2486	cb => Coro::unblock_sub {	4316	if ($_log_backtrace_last eq $msg) {
2487	write_runtime	4317	LOG llevInfo, "[ABT] $msg\n";
2488	or warn "ERROR: unable to write runtime file: $!";	4318	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4319	# limit the # of concurrent backtraces
		4320	} elsif ($_log_backtrace < 2) {
		4321	$_log_backtrace_last = $msg;
		4322	++$_log_backtrace;
		4323	my $perl_bt = Carp::longmess $msg;
		4324	async {
		4325	$Coro::current->{desc} = "abt $msg";
		4326
		4327	my @bt = fork_call {
		4328	@addr = map { sprintf "%x", $_ } @addr;
		4329	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4330	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4331	or die "addr2line: $!";
		4332
		4333	my @funcs;
		4334	my @res = <$fh>;
		4335	chomp for @res;
		4336	while (@res) {
		4337	my ($func, $line) = splice @res, 0, 2, ();
		4338	push @funcs, "[$func] $line";
		4339	}
		4340
		4341	@funcs
		4342	};
		4343
		4344	LOG llevInfo, "[ABT] $perl_bt\n";
		4345	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4346	LOG llevInfo, "[ABT] $_\n" for @bt;
		4347	--$_log_backtrace;
		4348	};
		4349	} else {
		4350	LOG llevInfo, "[ABT] $msg\n";
		4351	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2489	},	4352	}
2490	);	4353	}
		4354
		4355	# load additional modules
		4356	require "cf/$_.pm" for @EXTRA_MODULES;
		4357	cf::_connect_to_perl_2;
2491		4358
2492	END { cf::emergency_save }	4359	END { cf::emergency_save }
2493		4360
2494	1	4361	1
2495		4362

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