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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.581 by root, Fri Feb 3 02:04:11 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	#our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
45	our $NOW;	138	our $NOW;
46		139
47	our %CFG;	140	our (%PLAYER, %PLAYER_LOADING); # all users
		141	our (%MAP, %MAP_LOADING ); # all maps
		142	our $LINK_MAP; # the special {link} map, which is always available
48		143
49	our $UPTIME; $UPTIME ||= time;	144	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		146
52	our %MAP; # all maps	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	148	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $RANDOM_MAPS = cf::localdir . "/random";	149	our $JITTER; # average jitter
55	our %EXT_CORO;	150	our $TICK_START; # for load detecting purposes
		151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
56		159
57	binmode STDOUT;	160	binmode STDOUT;
58	binmode STDERR;	161	binmode STDERR;
59		162
60	# read virtual server time, if available	163	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
65	}	168	}
66		169
67	mkdir cf::localdir;	170	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		171
73	# a special map that is always available	172	mkdir $_
74	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		174
75	our $EMERGENCY_POSITION;	175	our $EMERGENCY_POSITION;
76		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
		182
77	#############################################################################	183	#############################################################################
78		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
79	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
80		197
81	=over 4	198	=over 4
82		199
83	=item $cf::UPTIME	200	=item $cf::UPTIME
84		201
85	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
86		218
87	=item $cf::RUNTIME	219	=item $cf::RUNTIME
88		220
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	222	every server tick.
91		223
92	=item $cf::LIBDIR	224	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		225	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		226	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		227
94	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		230	unique-items directory, player file directory, random maps directory and
		231	database environment.
96		232
		233	=item $cf::LOADAVG
		234
		235	The current CPU load on the server (alpha-smoothed), as a value between 0
		236	(none) and 1 (overloaded), indicating how much time is spent on processing
		237	objects per tick. Healthy values are < 0.5.
		238
97	=item $cf::NOW	239	=item $cf::LOAD
98		240
99	The time of the last (current) server tick.	241	The raw value load value from the last tick.
100
101	=item $cf::TICK
102
103	The interval between server ticks, in seconds.
104		242
105	=item %cf::CFG	243	=item %cf::CFG
106		244
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	246	from wherever your confdir points to.
109		247
		248	=item cf::wait_for_tick, cf::wait_for_tick_begin
		249
		250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		251	returns directly I<after> the tick processing (and consequently, can only wake one thread
		252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
		282
110	=back	283	=back
111		284
112	=cut	285	=cut
113		286
114	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
115	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
116	my $msg = join "", @_;	294	my $msg = join "", @_;
117	utf8::encode $msg;
118		295
119	$msg .= "\n"	296	$msg .= "\n"
120	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
121		298
122	LOG llevError, "cfperl: $msg";	299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	300
124	}	301	LOG llevWarn, $msg;
		302	};
		303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
125		317
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	322	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		323	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	324	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		325
133	# we bless all objects into (empty) derived classes to force a method lookup	326	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	327	# within the Safe compartment.
135	for my $pkg (qw(	328	for my $pkg (qw(
136	cf::global cf::attachable	329	cf::global cf::attachable
137	cf::object cf::object::player	330	cf::object cf::object::player
138	cf::client cf::player	331	cf::client cf::player
139	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
140	cf::map cf::party cf::region	334	cf::party cf::region
141	)) {	335	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	337	}
145		338
146	$Event::DIED = sub {	339	$EV::DIED = sub {
147	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
148	};	341	};
149		342
150	my %ext_pkg;	343	#############################################################################
151	my @exts;	344
152	my @hook;	345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
153		349
154	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
155		351
156	=over 4	352	=over 4
157		353
158	=cut	354	=item dumpval $ref
159		355
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	356	=cut
161		357
		358	sub dumpval {
		359	eval {
		360	local $SIG{__DIE__};
		361	my $d;
		362	if (1) {
		363	$d = new Data::Dumper([$_[0]], ["*var"]);
		364	$d->Terse(1);
		365	$d->Indent(2);
		366	$d->Quotekeys(0);
		367	$d->Useqq(1);
		368	#$d->Bless(...);
		369	$d->Seen($_[1]) if @_ > 1;
		370	$d = $d->Dump();
		371	}
		372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		373	$d
		374	} || "[unable to dump $_[0]: '$@']";
		375	}
		376
		377	=item $scalar = cf::load_file $path
		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
		391	=item $success = cf::replace_file $path, $data, $sync
		392
		393	Atomically replaces the file at the given $path with new $data, and
		394	optionally $sync the data to disk before replacing the file.
		395
		396	=cut
		397
		398	sub replace_file($$;$) {
		399	my ($path, $data, $sync) = @_;
		400
		401	my $lock = cf::lock_acquire ("replace_file:$path");
		402
		403	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		404	or return;
		405
		406	$data = $data->() if ref $data;
		407
		408	length $data == aio_write $fh, 0, (length $data), $data, 0
		409	or return;
		410
		411	!$sync
		412	or !aio_fsync $fh
		413	or return;
		414
		415	aio_close $fh
		416	and return;
		417
		418	aio_rename "$path~", $path
		419	and return;
		420
		421	if ($sync) {
		422	$path =~ s%/[^/]*$%%;
		423	aio_pathsync $path;
		424	}
		425
		426	1
		427	}
		428
162	=item $ref = cf::from_json $json	429	=item $ref = cf::decode_json $json
163		430
164	Converts a JSON string into the corresponding perl data structure.	431	Converts a JSON string into the corresponding perl data structure.
165		432
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	433	=item $json = cf::encode_json $ref
174		434
175	Converts a perl data structure into its JSON representation.	435	Converts a perl data structure into its JSON representation.
176		436
177	=cut	437	=cut
178		438
179	sub to_json($) {	439	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		440
184	=item my $guard = cf::guard { BLOCK }	441	sub encode_json($) { $json_coder->encode ($_[0]) }
		442	sub decode_json($) { $json_coder->decode ($_[0]) }
185		443
186	Run the given callback when the guard object gets destroyed (useful for	444	=item $ref = cf::decode_storable $scalar
187	coroutine cancellations).
188		445
189	You can call C<< ->cancel >> on the guard object to stop the block from	446	Same as Coro::Storable::thaw, so blocks.
190	being executed.
191		447
192	=cut	448	=cut
193		449
194	sub guard(&) {	450	BEGIN { *decode_storable = \&Coro::Storable::thaw }
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197		451
198	sub cf::guard::cancel {	452	=item $ref = cf::decode_yaml $scalar
199	${$_[0]} = sub { };
200	}
201		453
202	sub cf::guard::DESTROY {	454	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
203	${$_[0]}->();	455
		456	=cut
		457
		458	sub decode_yaml($) {
		459	fork_call { YAML::XS::Load $_[0] } @_
		460	}
		461
		462	=item $scalar = cf::unlzf $scalar
		463
		464	Same as Compress::LZF::compress, but takes server ticks into account, so
		465	blocks.
		466
		467	=cut
		468
		469	sub unlzf($) {
		470	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		471	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		472	Compress::LZF::decompress $_[0]
		473	}
		474
		475	=item cf::post_init { BLOCK }
		476
		477	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		478	but I<before> the server starts ticking again.
		479
		480	The codeblock will have a single boolean argument to indicate whether this
		481	is a reload or not.
		482
		483	=cut
		484
		485	sub post_init(&) {
		486	push @POST_INIT, shift;
		487	}
		488
		489	sub _post_init {
		490	trace "running post_init jobs";
		491
		492	# run them in parallel...
		493
		494	my @join;
		495
		496	while () {
		497	push @join, map &Coro::async ($_, 0), @POST_INIT;
		498	@POST_INIT = ();
		499
		500	@join or last;
		501
		502	(pop @join)->join;
		503	}
204	}	504	}
205		505
206	=item cf::lock_wait $string	506	=item cf::lock_wait $string
207		507
208	Wait until the given lock is available. See cf::lock_acquire.	508	Wait until the given lock is available. See cf::lock_acquire.
209		509
210	=item my $lock = cf::lock_acquire $string	510	=item my $lock = cf::lock_acquire $string
211		511
212	Wait until the given lock is available and then acquires it and returns	512	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	513	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	514	for example when the coroutine gets canceled), the lock is automatically
215	returned.	515	returned.
216		516
		517	Locks are *not* recursive, locking from the same coro twice results in a
		518	deadlocked coro.
		519
217	Lock names should begin with a unique identifier (for example, cf::map::find	520	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	521	uses map_find and cf::map::load uses map_load).
219		522
220	=cut	523	=item $locked = cf::lock_active $string
221		524
222	our %LOCK;	525	Return true if the lock is currently active, i.e. somebody has locked it.
		526
		527	=cut
		528
		529	our $LOCKS = new Coro::SemaphoreSet;
223		530
224	sub lock_wait($) {	531	sub lock_wait($) {
225	my ($key) = @_;	532	$LOCKS->wait ($_[0]);
226
227	# wait for lock, if any
228	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;
231	}
232	}	533	}
233		534
234	sub lock_acquire($) {	535	sub lock_acquire($) {
235	my ($key) = @_;	536	$LOCKS->guard ($_[0])
		537	}
236		538
237	# wait, to be sure we are not locked	539	sub lock_active($) {
238	lock_wait $key;	540	$LOCKS->count ($_[0]) < 1
		541	}
239		542
240	$LOCK{$key} = [];	543	sub freeze_mainloop {
		544	tick_inhibit_inc;
241		545
242	cf::guard {	546	&Guard::guard (\&tick_inhibit_dec);
243	# wake up all waiters, to be on the safe side	547	}
244	$_->ready for @{ delete $LOCK{$key} };	548
		549	=item cf::periodic $interval, $cb
		550
		551	Like EV::periodic, but randomly selects a starting point so that the actions
		552	get spread over time.
		553
		554	=cut
		555
		556	sub periodic($$) {
		557	my ($interval, $cb) = @_;
		558
		559	my $start = rand List::Util::min 180, $interval;
		560
		561	EV::periodic $start, $interval, 0, $cb
		562	}
		563
		564	=item cf::get_slot $time[, $priority[, $name]]
		565
		566	Allocate $time seconds of blocking CPU time at priority C<$priority>
		567	(default: 0): This call blocks and returns only when you have at least
		568	C<$time> seconds of cpu time till the next tick. The slot is only valid
		569	till the next cede.
		570
		571	Background jobs should use a priority les than zero, interactive jobs
		572	should use 100 or more.
		573
		574	The optional C<$name> can be used to identify the job to run. It might be
		575	used for statistical purposes and should identify the same time-class.
		576
		577	Useful for short background jobs.
		578
		579	=cut
		580
		581	our @SLOT_QUEUE;
		582	our $SLOT_QUEUE;
		583	our $SLOT_DECAY = 0.9;
		584
		585	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		586	$SLOT_QUEUE = Coro::async {
		587	$Coro::current->desc ("timeslot manager");
		588
		589	my $signal = new Coro::Signal;
		590	my $busy;
		591
		592	while () {
		593	next_job:
		594
		595	my $avail = cf::till_tick;
		596
		597	for (0 .. $#SLOT_QUEUE) {
		598	if ($SLOT_QUEUE[$_][0] <= $avail) {
		599	$busy = 0;
		600	my $job = splice @SLOT_QUEUE, $_, 1, ();
		601	$job->[2]->send;
		602	Coro::cede;
		603	goto next_job;
		604	} else {
		605	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		606	}
		607	}
		608
		609	if (@SLOT_QUEUE) {
		610	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		611	$WAIT_FOR_TICK->wait;
		612	} else {
		613	$busy = 0;
		614	Coro::schedule;
		615	}
245	}	616	}
		617	};
		618
		619	sub get_slot($;$$) {
		620	return if tick_inhibit || $Coro::current == $Coro::main;
		621
		622	my ($time, $pri, $name) = @_;
		623
		624	$time = clamp $time, 0.01, $TICK * .6;
		625
		626	my $sig = new Coro::Signal;
		627
		628	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		629	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		630	$SLOT_QUEUE->ready;
		631	$sig->wait;
246	}	632	}
247		633
248	=item cf::async { BLOCK }	634	=item cf::async { BLOCK }
249		635
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	636	Currently the same as Coro::async_pool, meaning you cannot use
251	error instead of exiting the server in case of a problem.	637	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		638	thing you are allowed to do is call C<prio> on it.
252		639
253	=cut	640	=cut
254		641
255	sub async(&) {	642	BEGIN { *async = \&Coro::async_pool }
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;
266
267	my $guard = guard { $TICK_WATCHER->start };
268	$TICK_WATCHER->stop;
269	$guard
270	}
271		643
272	=item cf::sync_job { BLOCK }	644	=item cf::sync_job { BLOCK }
273		645
274	The design of crossfire+ requires that the main coro ($Coro::main) is	646	The design of Deliantra requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	647	is always able to handle events or runnable, as Deliantra is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	648	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		649	acceptable.
277		650
278	If it must be done, put the blocking parts into C<sync_job>. This will run	651	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	652	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	653	server will be frozen during this time, so the block should either finish
281	fast or be very important.	654	fast or be very important.
…		…
283	=cut	656	=cut
284		657
285	sub sync_job(&) {	658	sub sync_job(&) {
286	my ($job) = @_;	659	my ($job) = @_;
287		660
288	if ($Coro::current == $Coro::main) {	661	if (in_main) {
		662	my $time = AE::time;
		663
289	# this is the main coro, too bad, we have to block	664	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	665	# till the operation succeeds, freezing the server :/
291		666
292	# TODO: use suspend/resume instead	667	#LOG llevError, Carp::longmess "sync job";#d#
293	# (but this is cancel-safe)	668
294	my $freeze_guard = freeze_mainloop;	669	my $freeze_guard = freeze_mainloop;
295		670
296	my $busy = 1;	671	my $busy = 1;
297	my @res;	672	my @res;
298		673
299	(Coro::async {	674	(async {
		675	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	676	@res = eval { $job->() };
301	warn $@ if $@;	677	error $@ if $@;
302	undef $busy;	678	undef $busy;
303	})->prio (Coro::PRIO_MAX);	679	})->prio (Coro::PRIO_MAX);
304		680
305	while ($busy) {	681	while ($busy) {
		682	if (Coro::nready) {
306	Coro::cede_notself;	683	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	684	} else {
		685	EV::loop EV::LOOP_ONESHOT;
308	}	686	}
		687	}
		688
		689	my $time = AE::time - $time;
		690
		691	$TICK_START += $time; # do not account sync jobs to server load
309		692
310	wantarray ? @res : $res[0]	693	wantarray ? @res : $res[0]
311	} else {	694	} else {
312	# we are in another coroutine, how wonderful, everything just works	695	# we are in another coroutine, how wonderful, everything just works
313		696
314	$job->()	697	$job->()
315	}	698	}
316	}	699	}
317		700
318	=item $coro = cf::coro { BLOCK }	701	=item $coro = cf::async_ext { BLOCK }
319		702
320	Creates and returns a new coro. This coro is automcatially being canceled	703	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	704	extension calling this is being unloaded.
322		705
323	=cut	706	=cut
324		707
325	sub coro(&) {	708	sub async_ext(&) {
326	my $cb = shift;	709	my $cb = shift;
327		710
328	my $coro = &cf::async ($cb);	711	my $coro = &Coro::async ($cb);
329		712
330	$coro->on_destroy (sub {	713	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	714	delete $EXT_CORO{$coro+0};
332	});	715	});
333	$EXT_CORO{$coro+0} = $coro;	716	$EXT_CORO{$coro+0} = $coro;
334		717
335	$coro	718	$coro
336	}	719	}
337		720
338	sub write_runtime {	721	=item fork_call { }, @args
339	my $runtime = cf::localdir . "/runtime";
340		722
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	723	Executes the given code block with the given arguments in a seperate
342	or return;	724	process, returning the results. Everything must be serialisable with
		725	Coro::Storable. May, of course, block. Note that the executed sub may
		726	never block itself or use any form of event handling.
343		727
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	728	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		729
348	aio_fsync $fh	730	sub post_fork {
349	and return;	731	reset_signals;
		732	}
350		733
351	close $fh	734	sub fork_call(&@) {
352	or return;	735	my ($cb, @args) = @_;
353		736
354	aio_rename "$runtime~", $runtime	737	# we seemingly have to make a local copy of the whole thing,
355	and return;	738	# otherwise perl prematurely frees the stuff :/
		739	# TODO: investigate and fix (likely this will be rather laborious)
356		740
		741	my @res = Coro::Util::fork_eval {
		742	cf::post_fork;
		743	&$cb
		744	} @args;
		745
		746	wantarray ? @res : $res[-1]
		747	}
		748
		749	sub objinfo {
357	1	750	(
		751	"counter value" => cf::object::object_count,
		752	"objects created" => cf::object::create_count,
		753	"objects destroyed" => cf::object::destroy_count,
		754	"freelist size" => cf::object::free_count,
		755	"allocated objects" => cf::object::objects_size,
		756	"active objects" => cf::object::actives_size,
		757	)
		758	}
		759
		760	=item $coin = coin_from_name $name
		761
		762	=cut
		763
		764	our %coin_alias = (
		765	"silver" => "silvercoin",
		766	"silvercoin" => "silvercoin",
		767	"silvercoins" => "silvercoin",
		768	"gold" => "goldcoin",
		769	"goldcoin" => "goldcoin",
		770	"goldcoins" => "goldcoin",
		771	"platinum" => "platinacoin",
		772	"platinumcoin" => "platinacoin",
		773	"platinumcoins" => "platinacoin",
		774	"platina" => "platinacoin",
		775	"platinacoin" => "platinacoin",
		776	"platinacoins" => "platinacoin",
		777	"royalty" => "royalty",
		778	"royalties" => "royalty",
		779	);
		780
		781	sub coin_from_name($) {
		782	$coin_alias{$_[0]}
		783	? cf::arch::find $coin_alias{$_[0]}
		784	: undef
		785	}
		786
		787	=item $value = cf::db_get $family => $key
		788
		789	Returns a single value from the environment database.
		790
		791	=item cf::db_put $family => $key => $value
		792
		793	Stores the given C<$value> in the family. It can currently store binary
		794	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		795
		796	=item $db = cf::db_table "name"
		797
		798	Create and/or open a new database table. The string must not be "db" and must be unique
		799	within each server.
		800
		801	=cut
		802
		803	sub db_table($) {
		804	cf::error "db_get called from main context"
		805	if $Coro::current == $Coro::main;
		806
		807	my ($name) = @_;
		808	my $db = BDB::db_create $DB_ENV;
		809
		810	eval {
		811	$db->set_flags (BDB::CHKSUM);
		812
		813	utf8::encode $name;
		814	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		815	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		816	cf::cleanup "db_open(db): $!" if $!;
		817	};
		818	cf::cleanup "db_open(db): $@" if $@;
		819
		820	$db
		821	}
		822
		823	our $DB;
		824
		825	sub db_init {
		826	$DB ||= db_table "db";
		827	}
		828
		829	sub db_get($$) {
		830	my $key = "$_[0]/$_[1]";
		831
		832	cf::error "db_get called from main context"
		833	if $Coro::current == $Coro::main;
		834
		835	BDB::db_get $DB, undef, $key, my $data;
		836
		837	$! ? ()
		838	: $data
		839	}
		840
		841	sub db_put($$$) {
		842	BDB::dbreq_pri 4;
		843	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		844	}
		845
		846	=item cf::cache $id => [$paths...], $processversion => $process
		847
		848	Generic caching function that returns the value of the resource $id,
		849	caching and regenerating as required.
		850
		851	This function can block.
		852
		853	=cut
		854
		855	sub cache {
		856	my ($id, $src, $processversion, $process) = @_;
		857
		858	my $meta =
		859	join "\x00",
		860	$processversion,
		861	map {
		862	aio_stat $_
		863	and Carp::croak "$_: $!";
		864
		865	($_, (stat _)[7,9])
		866	} @$src;
		867
		868	my $dbmeta = db_get cache => "$id/meta";
		869	if ($dbmeta ne $meta) {
		870	# changed, we may need to process
		871
		872	my @data;
		873	my $md5;
		874
		875	for (0 .. $#$src) {
		876	$data[$_] = load_file $src->[$_];
		877	}
		878
		879	# if processing is expensive, check
		880	# checksum first
		881	if (1) {
		882	$md5 =
		883	join "\x00",
		884	$processversion,
		885	map {
		886	cf::cede_to_tick;
		887	($src->[$_], Digest::MD5::md5_hex $data[$_])
		888	} 0.. $#$src;
		889
		890
		891	my $dbmd5 = db_get cache => "$id/md5";
		892	if ($dbmd5 eq $md5) {
		893	db_put cache => "$id/meta", $meta;
		894
		895	return db_get cache => "$id/data";
		896	}
		897	}
		898
		899	my $t1 = Time::HiRes::time;
		900	my $data = $process->(\@data);
		901	my $t2 = Time::HiRes::time;
		902
		903	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		904
		905	db_put cache => "$id/data", $data;
		906	db_put cache => "$id/md5" , $md5;
		907	db_put cache => "$id/meta", $meta;
		908
		909	return $data;
		910	}
		911
		912	db_get cache => "$id/data"
		913	}
		914
		915	=item cf::datalog type => key => value, ...
		916
		917	Log a datalog packet of the given type with the given key-value pairs.
		918
		919	=cut
		920
		921	sub datalog($@) {
		922	my ($type, %kv) = @_;
		923	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	924	}
359		925
360	=back	926	=back
361		927
362	=cut	928	=cut
363		929
364	#############################################################################	930	#############################################################################
365		931
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483
484	#############################################################################
485
486	=head2 ATTACHABLE OBJECTS	932	=head2 ATTACHABLE OBJECTS
487		933
488	Many objects in crossfire are so-called attachable objects. That means you can	934	Many objects in deliantra are so-called attachable objects. That means you can
489	attach callbacks/event handlers (a collection of which is called an "attachment")	935	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	936	to it. All such attachable objects support the following methods.
491		937
492	In the following description, CLASS can be any of C<global>, C<object>	938	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	939	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	940	Deliantra).
495		941
496	=over 4	942	=over 4
497		943
498	=item $attachable->attach ($attachment, key => $value...)	944	=item $attachable->attach ($attachment, key => $value...)
499		945
…		…
543	=item cf::CLASS::attachment $name, ...	989	=item cf::CLASS::attachment $name, ...
544		990
545	Register an attachment by C<$name> through which attachable objects of the	991	Register an attachment by C<$name> through which attachable objects of the
546	given CLASS can refer to this attachment.	992	given CLASS can refer to this attachment.
547		993
548	Some classes such as crossfire maps and objects can specify attachments	994	Some classes such as deliantra maps and objects can specify attachments
549	that are attached at load/instantiate time, thus the need for a name.	995	that are attached at load/instantiate time, thus the need for a name.
550		996
551	These calls expect any number of the following handler/hook descriptions:	997	These calls expect any number of the following handler/hook descriptions:
552		998
553	=over 4	999	=over 4
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	1059	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	1060	our @CB_MAP = ();
615		1061
616	my %attachment;	1062	my %attachment;
617		1063
		1064	sub cf::attachable::thawer_merge {
		1065	# simply override everything except _meta
		1066	local $_[0]{_meta};
		1067	%{$_[0]} = %{$_[1]};
		1068	}
		1069
618	sub _attach_cb($$$$) {	1070	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	1071	my ($registry, $event, $prio, $cb) = @_;
620		1072
621	use sort 'stable';	1073	use sort 'stable';
622		1074
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	1108	$registry = $CB_TYPE[$object_type] ||= [];
657		1109
658	} elsif ($type eq "subtype") {	1110	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	1111	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	1112	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1113	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		1114
663	} elsif ($type eq "package") {	1115	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	1116	my $pkg = shift @arg;
665		1117
666	while (my ($name, $id) = each %cb_id) {	1118	while (my ($name, $id) = each %cb_id) {
…		…
671		1123
672	} elsif (exists $cb_id{$type}) {	1124	} elsif (exists $cb_id{$type}) {
673	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1125	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
674		1126
675	} elsif (ref $type) {	1127	} elsif (ref $type) {
676	warn "attaching objects not supported, ignoring.\n";	1128	error "attaching objects not supported, ignoring.\n";
677		1129
678	} else {	1130	} else {
679	shift @arg;	1131	shift @arg;
680	warn "attach argument '$type' not supported, ignoring.\n";	1132	error "attach argument '$type' not supported, ignoring.\n";
681	}	1133	}
682	}	1134	}
683	}	1135	}
684		1136
685	sub _object_attach {	1137	sub _object_attach {
…		…
695	_attach $registry, $klass, @attach;	1147	_attach $registry, $klass, @attach;
696	}	1148	}
697		1149
698	$obj->{$name} = \%arg;	1150	$obj->{$name} = \%arg;
699	} else {	1151	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	1152	info "object uses attachment '$name' which is not available, postponing.\n";
701	}	1153	}
702		1154
703	$obj->{_attachment}{$name} = undef;	1155	$obj->{_attachment}{$name} = undef;
704	}	1156	}
705		1157
…		…
707	if (ref $_[0]) {	1159	if (ref $_[0]) {
708	_object_attach @_;	1160	_object_attach @_;
709	} else {	1161	} else {
710	_attach shift->_attach_registry, @_;	1162	_attach shift->_attach_registry, @_;
711	}	1163	}
		1164	_recalc_want;
712	};	1165	};
713		1166
714	# all those should be optimised	1167	# all those should be optimised
715	sub cf::attachable::detach {	1168	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	1169	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	1172	delete $obj->{_attachment}{$name};
720	reattach ($obj);	1173	reattach ($obj);
721	} else {	1174	} else {
722	Carp::croak "cannot, currently, detach class attachments";	1175	Carp::croak "cannot, currently, detach class attachments";
723	}	1176	}
		1177	_recalc_want;
724	};	1178	};
725		1179
726	sub cf::attachable::attached {	1180	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	1181	my ($obj, $name) = @_;
728		1182
…		…
743	";	1197	";
744	die if $@;	1198	die if $@;
745	}	1199	}
746		1200
747	our $override;	1201	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1202	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		1203
750	sub override {	1204	sub override {
751	$override = 1;	1205	$override = 1;
752	@invoke_results = ();	1206	@INVOKE_RESULTS = (@_);
753	}	1207	}
754		1208
755	sub do_invoke {	1209	sub do_invoke {
756	my $event = shift;	1210	my $event = shift;
757	my $callbacks = shift;	1211	my $callbacks = shift;
758		1212
759	@invoke_results = ();	1213	@INVOKE_RESULTS = ();
760		1214
761	local $override;	1215	local $override;
762		1216
763	for (@$callbacks) {	1217	for (@$callbacks) {
764	eval { &{$_->[1]} };	1218	eval { &{$_->[1]} };
765		1219
766	if ($@) {	1220	if ($@) {
767	warn "$@";
768	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1221	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
769	override;	1222	override;
770	}	1223	}
771		1224
772	return 1 if $override;	1225	return 1 if $override;
773	}	1226	}
774		1227
775	0	1228	0
776	}	1229	}
777		1230
778	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1231	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
779		1232
780	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1233	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
781		1234
782	Generate an object-specific event with the given arguments.	1235	Generate an object-specific event with the given arguments.
783		1236
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1237	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
785	removed in future versions), and there is no public API to access override	1238	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	1239	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		1240
788	=back	1241	=back
789		1242
790	=cut	1243	=cut
791		1244
792	#############################################################################	1245	#############################################################################
793	# object support	1246	# object support
		1247
		1248	sub _object_equal($$);
		1249	sub _object_equal($$) {
		1250	my ($a, $b) = @_;
		1251
		1252	return 0 unless (ref $a) eq (ref $b);
		1253
		1254	if ("HASH" eq ref $a) {
		1255	my @ka = keys %$a;
		1256	my @kb = keys %$b;
		1257
		1258	return 0 if @ka != @kb;
		1259
		1260	for (0 .. $#ka) {
		1261	return 0 unless $ka[$_] eq $kb[$_];
		1262	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1263	}
		1264
		1265	} elsif ("ARRAY" eq ref $a) {
		1266
		1267	return 0 if @$a != @$b;
		1268
		1269	for (0 .. $#$a) {
		1270	return 0 unless _object_equal $a->[$_], $b->[$_];
		1271	}
		1272
		1273	} elsif ($a ne $b) {
		1274	return 0;
		1275	}
		1276
		1277	1
		1278	}
		1279
		1280	our $SLOW_MERGES;#d#
		1281	sub _can_merge {
		1282	my ($ob1, $ob2) = @_;
		1283
		1284	++$SLOW_MERGES;#d#
		1285
		1286	# we do the slow way here
		1287	return _object_equal $ob1, $ob2
		1288	}
794		1289
795	sub reattach {	1290	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1291	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	1292	my ($obj) = @_;
		1293
		1294	# no longer needed after getting rid of delete_package?
		1295	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		1296
799	my $registry = $obj->registry;	1297	my $registry = $obj->registry;
800		1298
801	@$registry = ();	1299	@$registry = ();
802		1300
…		…
807	for (@$attach) {	1305	for (@$attach) {
808	my ($klass, @attach) = @$_;	1306	my ($klass, @attach) = @$_;
809	_attach $registry, $klass, @attach;	1307	_attach $registry, $klass, @attach;
810	}	1308	}
811	} else {	1309	} else {
812	warn "object uses attachment '$name' that is not available, postponing.\n";	1310	info "object uses attachment '$name' that is not available, postponing.\n";
813	}	1311	}
814	}	1312	}
815	}	1313	}
816		1314
817	cf::attachable->attach (	1315	cf::attachable->attach (
818	prio => -1000000,	1316	prio => -1000000,
819	on_instantiate => sub {	1317	on_instantiate => sub {
820	my ($obj, $data) = @_;	1318	my ($obj, $data) = @_;
821		1319
822	$data = from_json $data;	1320	$data = decode_json $data;
823		1321
824	for (@$data) {	1322	for (@$data) {
825	my ($name, $args) = @$_;	1323	my ($name, $args) = @$_;
826		1324
827	$obj->attach ($name, %{$args || {} });	1325	$obj->attach ($name, %{$args || {} });
…		…
843	sub object_freezer_save {	1341	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1342	my ($filename, $rdata, $objs) = @_;
845		1343
846	sync_job {	1344	sync_job {
847	if (length $$rdata) {	1345	if (length $$rdata) {
		1346	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1347	trace sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1348	$decname, length $$rdata, scalar @$objs
		1349	if $VERBOSE_IO;
850		1350
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1351	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1352	aio_chmod $fh, SAVE_MODE;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1353	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1354	if ($cf::USE_FSYNC) {
		1355	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
854	aio_fsync $fh;	1356	aio_fsync $fh;
		1357	}
855	close $fh;	1358	aio_close $fh;
856		1359
857	if (@$objs) {	1360	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1361	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1362	aio_chmod $fh, SAVE_MODE;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1363	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1364	aio_write $fh, 0, (length $data), $data, 0;
		1365	if ($cf::USE_FSYNC) {
		1366	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
862	aio_fsync $fh;	1367	aio_fsync $fh;
		1368	}
863	close $fh;	1369	aio_close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1370	aio_rename "$filename.pst~", "$filename.pst";
865	}	1371	}
866	} else {	1372	} else {
867	aio_unlink "$filename.pst";	1373	aio_unlink "$filename.pst";
868	}	1374	}
869		1375
870	aio_rename "$filename~", $filename;	1376	aio_rename "$filename~", $filename;
		1377
		1378	$filename =~ s%/[^/]+$%%;
		1379	aio_pathsync $filename if $cf::USE_FSYNC;
871	} else {	1380	} else {
872	warn "FATAL: $filename~: $!\n";	1381	error "unable to save objects: $filename~: $!\n";
873	}	1382	}
874	} else {	1383	} else {
875	aio_unlink $filename;	1384	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1385	aio_unlink "$filename.pst";
877	}	1386	}
878	}	1387	};
879	}	1388	}
880		1389
881	sub object_freezer_as_string {	1390	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1391	my ($rdata, $objs) = @_;
883		1392
…		…
895	or return;	1404	or return;
896		1405
897	unless (aio_stat "$filename.pst") {	1406	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1407	(aio_load "$filename.pst", $av) >= 0
899	or return;	1408	or return;
		1409
900	$av = eval { (Storable::thaw $av)->{objs} };	1410	my $st = eval { Coro::Storable::thaw $av };
		1411	$av = $st->{objs};
901	}	1412	}
902		1413
		1414	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1415	trace sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1416	$decname, length $data, scalar @{$av || []}
		1417	if $VERBOSE_IO;
		1418
905	return ($data, $av);	1419	($data, $av)
906	}	1420	}
		1421
		1422	=head2 COMMAND CALLBACKS
		1423
		1424	=over 4
		1425
		1426	=cut
907		1427
908	#############################################################################	1428	#############################################################################
909	# command handling &c	1429	# command handling &c
910		1430
911	=item cf::register_command $name => \&callback($ob,$args);	1431	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1444	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1445	}
926		1446
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1447	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1448
929	Register a callbackf ro execution when the client sends an extcmd packet.	1449	Register a callback for execution when the client sends an (synchronous)
		1450	extcmd packet. Ext commands will be processed in the order they are
		1451	received by the server, like other user commands. The first argument is
		1452	the logged-in player. Ext commands can only be processed after a player
		1453	has logged in successfully.
930		1454
931	If the callback returns something, it is sent back as if reply was being	1455	If the callback returns something, it is sent back as if reply was being
932	called.	1456	called.
933		1457
		1458	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1459
		1460	Register a callback for execution when the client sends an (asynchronous)
		1461	exticmd packet. Exti commands are processed by the server as soon as they
		1462	are received, i.e. out of order w.r.t. other commands. The first argument
		1463	is a client socket. Exti commands can be received anytime, even before
		1464	log-in.
		1465
		1466	If the callback returns something, it is sent back as if reply was being
		1467	called.
		1468
934	=cut	1469	=cut
935		1470
936	sub register_extcmd {	1471	sub register_extcmd {
937	my ($name, $cb) = @_;	1472	my ($name, $cb) = @_;
938		1473
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1474	$EXTCMD{$name} = $cb;
943	}	1475	}
		1476
		1477	sub register_exticmd {
		1478	my ($name, $cb) = @_;
		1479
		1480	$EXTICMD{$name} = $cb;
		1481	}
		1482
		1483	use File::Glob ();
944		1484
945	cf::player->attach (	1485	cf::player->attach (
946	on_command => sub {	1486	on_unknown_command => sub {
947	my ($pl, $name, $params) = @_;	1487	my ($pl, $name, $params) = @_;
948		1488
949	my $cb = $COMMAND{$name}	1489	my $cb = $COMMAND{$name}
950	or return;	1490	or return;
951		1491
…		…
956	cf::override;	1496	cf::override;
957	},	1497	},
958	on_extcmd => sub {	1498	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1499	my ($pl, $buf) = @_;
960		1500
961	my $msg = eval { from_json $buf };	1501	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1502
963	if (ref $msg) {	1503	if (ref $msg) {
		1504	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1505
		1506	my @reply;
		1507
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1508	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1509	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1510	}
		1511
		1512	$pl->ext_reply ($reply, @reply)
		1513	if $reply;
		1514
969	} else {	1515	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1516	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1517	}
972		1518
973	cf::override;	1519	cf::override;
974	},	1520	},
975	);	1521	);
976		1522
977	sub register {	1523	# "readahead" all extensions
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1524	sub cache_extensions {
984	my ($path) = @_;	1525	my $grp = IO::AIO::aio_group;
985		1526
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1527	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
987	my $base = $1;	1528	for (grep /\.ext$/, @{$_[0]}) {
988	my $pkg = $1;	1529	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }
1026
1027	# remove commands
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}	1530	}
1036	}	1531	};
1037		1532
1038	# remove extcmds	1533	$grp
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	1534	}
1052		1535
1053	sub load_extensions {	1536	sub load_extensions {
		1537	info "loading extensions...";
		1538
		1539	cf::sync_job {
		1540	my %todo;
		1541
1054	for my $ext (<$LIBDIR/*.ext>) {	1542	for my $path (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	1543	next unless -r $path;
1056	eval {	1544
1057	load_extension $ext;	1545	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1546	my $base = $1;
		1547	my $pkg = $1;
		1548	$pkg =~ s/[^[:word:]]/_/g;
		1549	$pkg = "ext::$pkg";
		1550
		1551	open my $fh, "<:utf8", $path
		1552	or die "$path: $!";
		1553
		1554	my $source = do { local $/; <$fh> };
		1555
		1556	my %ext = (
		1557	path => $path,
		1558	base => $base,
		1559	pkg => $pkg,
		1560	);
		1561
		1562	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1563	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1564
		1565	$ext{source} =
		1566	"package $pkg; use common::sense;\n"
		1567	. "#line 1 \"$path\"\n{\n"
		1568	. $source
		1569	. "\n};\n1";
		1570
		1571	$todo{$base} = \%ext;
		1572	}
		1573
		1574	my $pass = 0;
		1575	my %done;
		1576	while (%todo) {
		1577	my $progress;
		1578
		1579	++$pass;
		1580
		1581	ext:
		1582	while (my ($k, $v) = each %todo) {
		1583	for (split /,\s*/, $v->{meta}{depends}) {
		1584	next ext
		1585	unless exists $done{$_};
		1586	}
		1587
		1588	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1589
		1590	my $active = eval $v->{source};
		1591
		1592	if (length $@) {
		1593	error "$v->{path}: $@\n";
		1594
		1595	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1596	if exists $v->{meta}{mandatory};
		1597
		1598	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1599	delete $todo{$k};
		1600	} else {
		1601	$done{$k} = delete $todo{$k};
		1602	push @EXTS, $v->{pkg};
		1603	$progress = 1;
		1604
		1605	info "$v->{base}: extension inactive.\n"
		1606	unless $active;
		1607	}
1058	1	1608	}
1059	} or warn "$ext not loaded: $@";	1609
		1610	unless ($progress) {
		1611	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1612
		1613	while (my ($k, $v) = each %todo) {
		1614	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1615	if exists $v->{meta}{mandatory};
		1616	}
		1617
		1618	last;
		1619	}
		1620	}
1060	}	1621	};
1061	}	1622	}
1062		1623
1063	#############################################################################	1624	#############################################################################
1064	# load/save/clean perl data associated with a map
1065		1625
1066	*cf::mapsupport::on_clean = sub {	1626	=back
		1627
		1628	=head2 CORE EXTENSIONS
		1629
		1630	Functions and methods that extend core deliantra objects.
		1631
		1632	=cut
		1633
		1634	package cf::player;
		1635
		1636	use Coro::AIO;
		1637
		1638	=head3 cf::player
		1639
		1640	=over 4
		1641
		1642	=item cf::player::num_playing
		1643
		1644	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1645
		1646	=cut
		1647
		1648	sub num_playing {
		1649	scalar grep
		1650	$_->ob->map
		1651	&& !$_->hidden
		1652	&& !$_->ob->flag (cf::FLAG_WIZ),
		1653	cf::player::list
		1654	}
		1655
		1656	=item cf::player::find $login
		1657
		1658	Returns the given player object, loading it if necessary (might block).
		1659
		1660	=cut
		1661
		1662	sub playerdir($) {
		1663	"$PLAYERDIR/"
		1664	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1665	}
		1666
		1667	sub path($) {
		1668	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1669
		1670	(playerdir $login) . "/playerdata"
		1671	}
		1672
		1673	sub find_active($) {
		1674	$cf::PLAYER{$_[0]}
		1675	and $cf::PLAYER{$_[0]}->active
		1676	and $cf::PLAYER{$_[0]}
		1677	}
		1678
		1679	sub exists($) {
1067	my ($map) = @_;	1680	my ($login) = @_;
1068		1681
1069	my $path = $map->tmpname;	1682	$cf::PLAYER{$login}
1070	defined $path or return;	1683	or !aio_stat path $login
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}	1684	}
1083		1685
1084	# TODO: compatibility cruft, remove when no longer needed	1686	sub find($) {
		1687	return $cf::PLAYER{$_[0]} || do {
		1688	my $login = $_[0];
		1689
		1690	my $guard = cf::lock_acquire "user_find:$login";
		1691
		1692	$cf::PLAYER{$_[0]} || do {
		1693	# rename old playerfiles to new ones
		1694	#TODO: remove when no longer required
		1695	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1696	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1697	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1698	aio_unlink +(playerdir $login) . "/$login.pl";
		1699
		1700	my $f = new_from_file cf::object::thawer path $login
		1701	or return;
		1702
		1703	my $pl = cf::player::load_pl $f
		1704	or return;
		1705
		1706	local $cf::PLAYER_LOADING{$login} = $pl;
		1707	$f->resolve_delayed_derefs;
		1708	$cf::PLAYER{$login} = $pl
		1709	}
		1710	}
		1711	}
		1712
1085	cf::player->attach (	1713	cf::player->attach (
1086	on_load => sub {	1714	on_load => sub {
1087	my ($pl, $path) = @_;	1715	my ($pl, $path) = @_;
1088		1716
1089	for my $o (all_objects $pl->ob) {	1717	# restore slots saved in save, below
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1718	my $slots = delete $pl->{_slots};
1091	$o->set_ob_key_value ("_perl_data");
1092		1719
1093	%$o = %{ Storable::thaw pack "H*", $value };	1720	$pl->ob->current_weapon ($slots->[0]);
1094	}	1721	$pl->combat_ob ($slots->[1]);
1095	}	1722	$pl->ranged_ob ($slots->[2]);
1096	},	1723	},
1097	);	1724	);
1098		1725
1099	#############################################################################	1726	sub save($) {
		1727	my ($pl) = @_;
1100		1728
1101	=head2 CORE EXTENSIONS	1729	return if $pl->{deny_save};
1102		1730
1103	Functions and methods that extend core crossfire objects.	1731	my $path = path $pl;
		1732	my $guard = cf::lock_acquire "user_save:$path";
1104		1733
1105	=head3 cf::player	1734	return if $pl->{deny_save};
		1735
		1736	aio_mkdir playerdir $pl, 0770;
		1737	$pl->{last_save} = $cf::RUNTIME;
		1738
		1739	cf::get_slot 0.01;
		1740
		1741	# save slots, to be restored later
		1742	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1743
		1744	$pl->save_pl ($path);
		1745	cf::cede_to_tick;
		1746	}
		1747
		1748	sub new($) {
		1749	my ($login) = @_;
		1750
		1751	my $self = create;
		1752
		1753	$self->ob->name ($login);
		1754	$self->{deny_save} = 1;
		1755
		1756	$cf::PLAYER{$login} = $self;
		1757
		1758	$self
		1759	}
		1760
		1761	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1762
		1763	=cut
		1764
		1765	sub send_msg {
		1766	my $ns = shift->ns
		1767	or return;
		1768	$ns->send_msg (@_);
		1769	}
		1770
		1771	=item $pl->quit_character
		1772
		1773	Nukes the player without looking back. If logged in, the connection will
		1774	be destroyed. May block for a long time.
		1775
		1776	=cut
		1777
		1778	sub quit_character {
		1779	my ($pl) = @_;
		1780
		1781	my $name = $pl->ob->name;
		1782
		1783	$pl->{deny_save} = 1;
		1784	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1785
		1786	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1787	$pl->deactivate;
		1788
		1789	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1790	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1791	ext::highscore::check ($pl->ob);
		1792
		1793	$pl->ns->destroy if $pl->ns;
		1794
		1795	my $path = playerdir $pl;
		1796	my $temp = "$path~$cf::RUNTIME~deleting~";
		1797	aio_rename $path, $temp;
		1798	delete $cf::PLAYER{$pl->ob->name};
		1799	$pl->destroy;
		1800
		1801	my $prefix = qr<^~\Q$name\E/>;
		1802
		1803	# nuke player maps
		1804	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1805
		1806	IO::AIO::aio_rmtree $temp;
		1807	}
		1808
		1809	=item $pl->kick
		1810
		1811	Kicks a player out of the game. This destroys the connection.
		1812
		1813	=cut
		1814
		1815	sub kick {
		1816	my ($pl, $kicker) = @_;
		1817
		1818	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1819	$pl->killer ("kicked");
		1820	$pl->ns->destroy;
		1821	}
		1822
		1823	=item cf::player::list_logins
		1824
		1825	Returns am arrayref of all valid playernames in the system, can take a
		1826	while and may block, so not sync_job-capable, ever.
		1827
		1828	=cut
		1829
		1830	sub list_logins {
		1831	my $dirs = aio_readdir $PLAYERDIR
		1832	or return [];
		1833
		1834	my @logins;
		1835
		1836	for my $login (@$dirs) {
		1837	my $path = path $login;
		1838
		1839	# a .pst is a dead give-away for a valid player
		1840	# if no pst file found, open and chekc for blocked users
		1841	if (aio_stat "$path.pst") {
		1842	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1843	aio_read $fh, 0, 512, my $buf, 0 or next;
		1844	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1845	}
		1846
		1847	utf8::decode $login;
		1848	push @logins, $login;
		1849	}
		1850
		1851	\@logins
		1852	}
		1853
		1854	=item $player->maps
		1855
		1856	=item cf::player::maps $login
		1857
		1858	Returns an arrayref of map paths that are private for this
		1859	player. May block.
		1860
		1861	=cut
		1862
		1863	sub maps($) {
		1864	my ($pl) = @_;
		1865
		1866	$pl = ref $pl ? $pl->ob->name : $pl;
		1867
		1868	my $files = aio_readdir playerdir $pl
		1869	or return;
		1870
		1871	my @paths;
		1872
		1873	for (@$files) {
		1874	utf8::decode $_;
		1875	next if /\.(?:pl|pst)$/;
		1876	next unless /^$PATH_SEP/o;
		1877
		1878	push @paths, cf::map::normalise "~$pl/$_";
		1879	}
		1880
		1881	\@paths
		1882	}
		1883
		1884	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1885
		1886	Expand deliantra pod fragments into protocol xml.
		1887
		1888	=item $player->ext_reply ($msgid, @msg)
		1889
		1890	Sends an ext reply to the player.
		1891
		1892	=cut
		1893
		1894	sub ext_reply($$@) {
		1895	my ($self, $id, @msg) = @_;
		1896
		1897	$self->ns->ext_reply ($id, @msg)
		1898	}
		1899
		1900	=item $player->ext_msg ($type, @msg)
		1901
		1902	Sends an ext event to the client.
		1903
		1904	=cut
		1905
		1906	sub ext_msg($$@) {
		1907	my ($self, $type, @msg) = @_;
		1908
		1909	$self->ns->ext_msg ($type, @msg);
		1910	}
		1911
		1912	=head3 cf::region
1106		1913
1107	=over 4	1914	=over 4
1108		1915
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut	1916	=cut
1114		1917
1115	sub cf::player::exists($) {	1918	package cf::region;
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119		1919
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1920	=item cf::region::find_by_path $path
1121		1921
1122	Sends an ext reply to the player.	1922	Tries to decuce the likely region for a map knowing only its path.
1123		1923
1124	=cut	1924	=cut
1125		1925
1126	sub cf::player::ext_reply($$$%) {	1926	sub find_by_path($) {
1127	my ($self, $id, %msg) = @_;	1927	my ($path) = @_;
1128		1928
1129	$msg{msgid} = $id;	1929	$path =~ s/^~[^\/]*//; # skip ~login
1130		1930
1131	$self->send ("ext " . to_json \%msg);	1931	my ($match, $specificity);
		1932
		1933	for my $region (list) {
		1934	if ($region->{match} && $path =~ $region->{match}) {
		1935	($match, $specificity) = ($region, $region->specificity)
		1936	if $region->specificity > $specificity;
		1937	}
		1938	}
		1939
		1940	$match
1132	}	1941	}
1133		1942
1134	=back	1943	=back
1135
1136		1944
1137	=head3 cf::map	1945	=head3 cf::map
1138		1946
1139	=over 4	1947	=over 4
1140		1948
…		…
1143	package cf::map;	1951	package cf::map;
1144		1952
1145	use Fcntl;	1953	use Fcntl;
1146	use Coro::AIO;	1954	use Coro::AIO;
1147		1955
		1956	use overload
		1957	'""' => \&as_string,
		1958	fallback => 1;
		1959
1148	our $MAX_RESET = 3600;	1960	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1961	our $DEFAULT_RESET = 3000;
1150		1962
1151	sub generate_random_map {	1963	sub generate_random_map {
		1964	my ($self, $rmp) = @_;
		1965
		1966	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1967
		1968	$self->_create_random_map ($rmp);
		1969	}
		1970
		1971	=item cf::map->register ($regex, $prio)
		1972
		1973	Register a handler for the map path matching the given regex at the
		1974	givne priority (higher is better, built-in handlers have priority 0, the
		1975	default).
		1976
		1977	=cut
		1978
		1979	sub register {
		1980	my (undef, $regex, $prio) = @_;
		1981	my $pkg = caller;
		1982
		1983	push @{"$pkg\::ISA"}, __PACKAGE__;
		1984
		1985	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1986	}
		1987
		1988	# also paths starting with '/'
		1989	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1990
		1991	sub thawer_merge {
		1992	my ($self, $merge) = @_;
		1993
		1994	# we have to keep some variables in memory intact
		1995	local $self->{path};
		1996	local $self->{load_path};
		1997
		1998	$self->SUPER::thawer_merge ($merge);
		1999	}
		2000
		2001	sub normalise {
1152	my ($path, $rmp) = @_;	2002	my ($path, $base) = @_;
1153		2003
1154	# mit "rum" bekleckern, nicht	2004	$path = "$path"; # make sure it's a string
1155	cf::map::_create_random_map	2005
		2006	$path =~ s/\.map$//;
		2007
		2008	# map plan:
		2009	#
		2010	# /! non-realised random map exit (special hack!)
		2011	# {... are special paths that are not being touched
		2012	# ?xxx/... are special absolute paths
		2013	# ?random/... random maps
		2014	# /... normal maps
		2015	# ~user/... per-player map of a specific user
		2016
		2017	$path =~ s/$PATH_SEP/\//go;
		2018
		2019	# treat it as relative path if it starts with
		2020	# something that looks reasonable
		2021	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2022	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2023
		2024	$base =~ s{[^/]+/?$}{};
		2025	$path = "$base/$path";
		2026	}
		2027
		2028	for ($path) {
		2029	redo if s{/\.?/}{/};
		2030	redo if s{/[^/]+/\.\./}{/};
		2031	}
		2032
1156	$path,	2033	$path
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})
1168	}	2034	}
1169		2035
1170	# and all this just because we cannot iterate over	2036	sub new_from_path {
1171	# all maps in C++...	2037	my (undef, $path, $base) = @_;
1172	sub change_all_map_light {	2038
		2039	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2040
		2041	$path = normalise $path, $base;
		2042
		2043	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2044	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2045	my $self = bless cf::map::new, $pkg;
		2046	$self->{path} = $path; $self->path ($path);
		2047	$self->init; # pass $1 etc.
		2048	return $self;
		2049	}
		2050	}
		2051
		2052	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2053	()
		2054	}
		2055
		2056	# may re-bless or do other evil things
		2057	sub init {
1173	my ($change) = @_;	2058	my ($self) = @_;
1174		2059
1175	$_->change_map_light ($change)	2060	$self
1176	for grep $_->outdoor, values %cf::MAP;
1177	}	2061	}
1178		2062
		2063	sub as_string {
		2064	my ($self) = @_;
		2065
		2066	"$self->{path}"
		2067	}
		2068
		2069	# the displayed name, this is a one way mapping
		2070	sub visible_name {
		2071	&as_string
		2072	}
		2073
		2074	# the original (read-only) location
		2075	sub load_path {
		2076	my ($self) = @_;
		2077
		2078	"$MAPDIR/$self->{path}.map"
		2079	}
		2080
		2081	# the temporary/swap location
		2082	sub save_path {
		2083	my ($self) = @_;
		2084
		2085	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2086	"$TMPDIR/$path.map"
		2087	}
		2088
		2089	# the unique path, undef == no special unique path
		2090	sub uniq_path {
		2091	my ($self) = @_;
		2092
		2093	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2094	"$UNIQUEDIR/$path"
		2095	}
		2096
		2097	sub decay_objects {
		2098	my ($self) = @_;
		2099
		2100	return if $self->{deny_reset};
		2101
		2102	$self->do_decay_objects;
		2103	}
		2104
		2105	sub unlink_save {
		2106	my ($self) = @_;
		2107
		2108	utf8::encode (my $save = $self->save_path);
		2109	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2110	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2111	}
		2112
1179	sub try_load_header($) {	2113	sub load_header_from($) {
1180	my ($path) = @_;	2114	my ($self, $path) = @_;
1181		2115
1182	utf8::encode $path;	2116	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	2117	my $f = new_from_file cf::object::thawer $path
1184	or return;	2118	or return;
1185		2119
1186	my $map = cf::map::new	2120	$self->_load_header ($f)
1187	or return;	2121	or return;
1188		2122
1189	$map->load_header ($path)	2123	local $MAP_LOADING{$self->{path}} = $self;
		2124	$f->resolve_delayed_derefs;
		2125
		2126	$self->{load_path} = $path;
		2127
		2128	1
		2129	}
		2130
		2131	# used to laod the header of an original map
		2132	sub load_header_orig {
		2133	my ($self) = @_;
		2134
		2135	$self->load_header_from ($self->load_path)
		2136	}
		2137
		2138	# used to laod the header of an instantiated map
		2139	sub load_header_temp {
		2140	my ($self) = @_;
		2141
		2142	$self->load_header_from ($self->save_path)
		2143	}
		2144
		2145	# called after loading the header from an instantiated map
		2146	sub prepare_temp {
		2147	my ($self) = @_;
		2148
		2149	$self->last_access ((delete $self->{last_access})
		2150	|| $cf::RUNTIME); #d#
		2151	# safety
		2152	$self->{instantiate_time} = $cf::RUNTIME
		2153	if $self->{instantiate_time} > $cf::RUNTIME;
		2154	}
		2155
		2156	# called after loading the header from an original map
		2157	sub prepare_orig {
		2158	my ($self) = @_;
		2159
		2160	$self->{load_original} = 1;
		2161	$self->{instantiate_time} = $cf::RUNTIME;
		2162	$self->last_access ($cf::RUNTIME);
		2163	$self->instantiate;
		2164	}
		2165
		2166	sub load_header {
		2167	my ($self) = @_;
		2168
		2169	if ($self->load_header_temp) {
		2170	$self->prepare_temp;
		2171	} else {
		2172	$self->load_header_orig
1190	or return;	2173	or return;
		2174	$self->prepare_orig;
		2175	}
1191		2176
1192	$map->{load_path} = $path;	2177	$self->{deny_reset} = 1
		2178	if $self->no_reset;
1193		2179
1194	$map	2180	$self->default_region (cf::region::find_by_path $self->{path})
		2181	unless $self->default_region;
		2182
		2183	1
1195	}	2184	}
1196		2185
1197	sub find;	2186	sub find;
1198	sub find {	2187	sub find {
1199	my ($path, $origin) = @_;	2188	my ($path, $origin) = @_;
1200		2189
1201	#warn "find<$path,$origin>\n";#d#	2190	cf::cede_to_tick;
1202		2191
1203	$path = new cf::path $path, $origin && $origin->path;	2192	$path = normalise $path, $origin;
1204	my $key = $path->as_string;
1205		2193
1206	cf::lock_wait "map_find:$key";	2194	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1207
1208	$cf::MAP{$key} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	2195	my $guard2 = cf::lock_acquire "map_find:$path";
1210		2196
1211	# do it the slow way	2197	$cf::MAP{$path} || do {
1212	my $map = try_load_header $path->save_path;	2198	my $map = new_from_path cf::map $path
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	2199	or return;
1228		2200
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	2201	$map->{last_save} = $cf::RUNTIME;
1241		2202
1242	if ($map->should_reset) {	2203	$map->load_header
		2204	or return;
		2205
		2206	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2207	# doing this can freeze the server in a sync job, obviously
		2208	#$cf::WAIT_FOR_TICK->wait;
		2209	undef $guard2;
		2210	undef $guard1;
1243	$map->reset;	2211	$map->reset;
1244	undef $guard;
1245	$map = find $path	2212	return find $path;
1246	or return;
1247	}	2213	}
1248		2214
1249	$cf::MAP{$key} = $map	2215	$cf::MAP{$path} = $map
1250	}	2216	}
1251	}	2217	}
		2218
		2219	sub pre_load { }
		2220	#sub post_load { } # XS
1252		2221
1253	sub load {	2222	sub load {
1254	my ($self) = @_;	2223	my ($self) = @_;
1255		2224
		2225	local $self->{deny_reset} = 1; # loading can take a long time
		2226
1256	my $path = $self->{path};	2227	my $path = $self->{path};
		2228
		2229	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2230	my $guard = cf::lock_acquire "map_data:$path";
1258		2231
1259	return if $self->in_memory != cf::MAP_SWAPPED;	2232	return unless $self->valid;
		2233	return unless $self->state == cf::MAP_SWAPPED;
1260		2234
1261	$self->in_memory (cf::MAP_LOADING);
1262
1263	$self->alloc;	2235	$self->alloc;
1264	$self->load_objects ($self->{load_path}, 1)	2236
		2237	$self->pre_load;
		2238	cf::cede_to_tick;
		2239
		2240	if (exists $self->{load_path}) {
		2241	my $f = new_from_file cf::object::thawer $self->{load_path};
		2242	$f->skip_block;
		2243	$self->_load_objects ($f)
1265	or return;	2244	or return;
1266		2245
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2246	$self->post_load_original
1268	if delete $self->{load_original};	2247	if delete $self->{load_original};
1269		2248
1270	if (my $uniq = $path->uniq_path) {	2249	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	2250	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	2251	unless (aio_stat $uniq) {
		2252	if (my $f = new_from_file cf::object::thawer $uniq) {
1273	$self->clear_unique_items;	2253	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	2254	$self->_load_objects ($f);
		2255	$f->resolve_delayed_derefs;
		2256	}
		2257	}
1275	}	2258	}
1276	}
1277		2259
		2260	$f->resolve_delayed_derefs;
		2261	} else {
		2262	$self->post_load_original
		2263	if delete $self->{load_original};
		2264	}
		2265
		2266	$self->state (cf::MAP_INACTIVE);
		2267
		2268	cf::cede_to_tick;
1278	# now do the right thing for maps	2269	# now do the right thing for maps
1279	$self->link_multipart_objects;	2270	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	2271	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	2272	unless $self->difficulty;
1291	$self->activate;	2273	cf::cede_to_tick;
		2274
		2275	unless ($self->{deny_activate}) {
		2276	$self->decay_objects;
		2277	$self->fix_auto_apply;
		2278	$self->update_buttons;
		2279	cf::cede_to_tick;
		2280	#$self->activate; # no longer activate maps automatically
		2281	}
		2282
		2283	$self->{last_save} = $cf::RUNTIME;
		2284	$self->last_access ($cf::RUNTIME);
		2285	}
		2286
		2287	$self->post_load;
		2288
1292	}	2289	1
		2290	}
1293		2291
1294	$self->in_memory (cf::MAP_IN_MEMORY);	2292	# customize the map for a given player, i.e.
		2293	# return the _real_ map. used by e.g. per-player
		2294	# maps to change the path to ~playername/mappath
		2295	sub customise_for {
		2296	my ($self, $ob) = @_;
		2297
		2298	return find "~" . $ob->name . "/" . $self->{path}
		2299	if $self->per_player;
		2300
		2301	# return find "?party/" . $ob->name . "/" . $self->{path}
		2302	# if $self->per_party;
		2303
		2304	$self
1295	}	2305	}
1296		2306
1297	sub find_sync {	2307	sub find_sync {
1298	my ($path, $origin) = @_;	2308	my ($path, $origin) = @_;
1299		2309
1300	cf::sync_job { cf::map::find $path, $origin }	2310	# it's a bug to call this from the main context
		2311	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2312	if $Coro::current == $Coro::main;
		2313
		2314	find $path, $origin
1301	}	2315	}
1302		2316
1303	sub do_load_sync {	2317	sub do_load_sync {
1304	my ($map) = @_;	2318	my ($map) = @_;
1305		2319
1306	cf::sync_job { $map->load };	2320	# it's a bug to call this from the main context
		2321	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2322	if $Coro::current == $Coro::main;
		2323
		2324	$map->load;
		2325	}
		2326
		2327	our %MAP_PREFETCH;
		2328	our $MAP_PREFETCHER = undef;
		2329
		2330	sub find_async {
		2331	my ($path, $origin, $load) = @_;
		2332
		2333	$path = normalise $path, $origin;
		2334
		2335	if (my $map = $cf::MAP{$path}) {
		2336	return $map if !$load || $map->linkable;
		2337	}
		2338
		2339	$MAP_PREFETCH{$path} |= $load;
		2340
		2341	$MAP_PREFETCHER ||= cf::async {
		2342	$Coro::current->{desc} = "map prefetcher";
		2343
		2344	while (%MAP_PREFETCH) {
		2345	while (my ($k, $v) = each %MAP_PREFETCH) {
		2346	if (my $map = find $k) {
		2347	$map->load if $v;
		2348	}
		2349
		2350	delete $MAP_PREFETCH{$k};
		2351	}
		2352	}
		2353	undef $MAP_PREFETCHER;
		2354	};
		2355	$MAP_PREFETCHER->prio (6);
		2356
		2357	()
		2358	}
		2359
		2360	# common code, used by both ->save and ->swapout
		2361	sub _save {
		2362	my ($self) = @_;
		2363
		2364	$self->{last_save} = $cf::RUNTIME;
		2365
		2366	return unless $self->dirty;
		2367
		2368	my $save = $self->save_path; utf8::encode $save;
		2369	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2370
		2371	$self->{load_path} = $save;
		2372
		2373	return if $self->{deny_save};
		2374
		2375	local $self->{last_access} = $self->last_access;#d#
		2376
		2377	cf::async {
		2378	$Coro::current->{desc} = "map player save";
		2379	$_->contr->save for $self->players;
		2380	};
		2381
		2382	cf::get_slot 0.02;
		2383
		2384	if ($uniq) {
		2385	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2386	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2387	} else {
		2388	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2389	}
1307	}	2390	}
1308		2391
1309	sub save {	2392	sub save {
1310	my ($self) = @_;	2393	my ($self) = @_;
1311		2394
1312	$self->{last_save} = $cf::RUNTIME;	2395	my $lock = cf::lock_acquire "map_data:$self->{path}";
1313		2396
1314	return unless $self->dirty;	2397	$self->_save;
1315
1316	my $save = $self->{path}->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1318
1319	$self->{load_path} = $save;
1320
1321	return if $self->{deny_save};
1322
1323	local $self->{last_access} = $self->last_access;#d#
1324
1325	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}
1331	}	2398	}
1332		2399
1333	sub swap_out {	2400	sub swap_out {
1334	my ($self) = @_;	2401	my ($self) = @_;
1335		2402
1336	# save first because save cedes	2403	my $lock = cf::lock_acquire "map_data:$self->{path}";
1337	$self->save;
1338		2404
		2405	return if !$self->linkable;
		2406	return if $self->{deny_save};
1339	return if $self->players;	2407	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};
1342		2408
		2409	# first deactivate the map and "unlink" it from the core
		2410	$self->deactivate;
		2411	$_->clear_links_to ($self) for values %cf::MAP;
		2412	$self->state (cf::MAP_SWAPPED);
		2413
		2414	# then atomically save
		2415	$self->_save;
		2416
		2417	# then free the map
1343	$self->clear;	2418	$self->clear;
1344	$self->in_memory (cf::MAP_SWAPPED);
1345	}	2419	}
1346		2420
1347	sub reset_at {	2421	sub reset_at {
1348	my ($self) = @_;	2422	my ($self) = @_;
1349		2423
1350	# TODO: safety, remove and allow resettable per-player maps	2424	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	2425	return 1e99 if $self->{deny_reset};
1353		2426
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2427	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2428	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		2429
…		…
1361	my ($self) = @_;	2434	my ($self) = @_;
1362		2435
1363	$self->reset_at <= $cf::RUNTIME	2436	$self->reset_at <= $cf::RUNTIME
1364	}	2437	}
1365		2438
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	2439	sub reset {
1388	my ($self) = @_;	2440	my ($self) = @_;
1389		2441
		2442	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2443
1390	return if $self->players;	2444	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		2445
1393	warn "resetting map ", $self->path;#d#	2446	cf::trace "resetting map ", $self->path, "\n";
		2447
		2448	$self->state (cf::MAP_SWAPPED);
		2449
		2450	# need to save uniques path
		2451	unless ($self->{deny_save}) {
		2452	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2453
		2454	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2455	if $uniq;
		2456	}
1394		2457
1395	delete $cf::MAP{$self->path};	2458	delete $cf::MAP{$self->path};
1396		2459
		2460	$self->deactivate;
1397	$_->clear_links_to ($self) for values %cf::MAP;	2461	$_->clear_links_to ($self) for values %cf::MAP;
		2462	$self->clear;
1398		2463
1399	$self->unlink_save;	2464	$self->unlink_save;
1400	$self->destroy;	2465	$self->destroy;
1401	}	2466	}
1402		2467
1403	my $nuke_counter = "aaaa";	2468	my $nuke_counter = "aaaa";
1404		2469
1405	sub nuke {	2470	sub nuke {
1406	my ($self) = @_;	2471	my ($self) = @_;
1407		2472
		2473	{
		2474	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2475
		2476	delete $cf::MAP{$self->path};
		2477
		2478	$self->unlink_save;
		2479
		2480	bless $self, "cf::map::wrap";
		2481	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2482	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2483	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2484	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2485
		2486	$cf::MAP{$self->path} = $self;
		2487	}
		2488
1411	$self->reset; # polite request, might not happen	2489	$self->reset; # polite request, might not happen
1412	}	2490	}
1413		2491
1414	sub customise_for {	2492	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2493
1417	if ($map->per_player) {	2494	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2495	maps. May block.
		2496
		2497	=cut
		2498
		2499	sub tmp_maps() {
1419	}	2500	[
1420		2501	map {
1421	$map	2502	utf8::decode $_;
		2503	/\.map$/
		2504	? normalise $_
		2505	: ()
		2506	} @{ aio_readdir $TMPDIR or [] }
		2507	]
1422	}	2508	}
1423		2509
1424	sub emergency_save {	2510	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2511
1427	warn "enter emergency map save\n";	2512	Returns an arrayref with all map paths of currently instantiated and saved
		2513	random maps. May block.
1428		2514
1429	cf::sync_job {	2515	=cut
1430	warn "begin emergency map save\n";	2516
1431	$_->save for values %cf::MAP;	2517	sub random_maps() {
		2518	[
		2519	map {
		2520	utf8::decode $_;
		2521	/\.map$/
		2522	? normalise "?random/$_"
		2523	: ()
		2524	} @{ aio_readdir $RANDOMDIR or [] }
		2525	]
		2526	}
		2527
		2528	=item cf::map::unique_maps
		2529
		2530	Returns an arrayref of paths of all shared maps that have
		2531	instantiated unique items. May block.
		2532
		2533	=cut
		2534
		2535	sub unique_maps() {
		2536	[
		2537	map {
		2538	utf8::decode $_;
		2539	s/\.map$//; # TODO future compatibility hack
		2540	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2541	? ()
		2542	: normalise $_
		2543	} @{ aio_readdir $UNIQUEDIR or [] }
		2544	]
		2545	}
		2546
		2547	=item cf::map::static_maps
		2548
		2549	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2550	file in the shared directory excluding F</styles> and F</editor>). May
		2551	block.
		2552
		2553	=cut
		2554
		2555	sub static_maps() {
		2556	my @dirs = "";
		2557	my @maps;
		2558
		2559	while (@dirs) {
		2560	my $dir = shift @dirs;
		2561
		2562	next if $dir eq "/styles" || $dir eq "/editor";
		2563
		2564	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2565	or return;
		2566
		2567	for (@$files) {
		2568	s/\.map$// or next;
		2569	utf8::decode $_;
		2570	push @maps, "$dir/$_";
		2571	}
		2572
		2573	push @dirs, map "$dir/$_", @$dirs;
1432	};	2574	}
1433		2575
1434	warn "end emergency map save\n";	2576	\@maps
		2577	}
		2578
		2579	=back
		2580
		2581	=head3 cf::object
		2582
		2583	=cut
		2584
		2585	package cf::object;
		2586
		2587	=over 4
		2588
		2589	=item $ob->inv_recursive
		2590
		2591	Returns the inventory of the object I<and> their inventories, recursively,
		2592	but I<not> the object itself.
		2593
		2594	=cut
		2595
		2596	sub inv_recursive_;
		2597	sub inv_recursive_ {
		2598	map { $_, inv_recursive_ $_->inv } @_
		2599	}
		2600
		2601	sub inv_recursive {
		2602	inv_recursive_ inv $_[0]
		2603	}
		2604
		2605	=item $ref = $ob->ref
		2606
		2607	Creates and returns a persistent reference to an object that can be stored as a string.
		2608
		2609	=item $ob = cf::object::deref ($refstring)
		2610
		2611	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2612	even if the object actually exists. May block.
		2613
		2614	=cut
		2615
		2616	sub deref {
		2617	my ($ref) = @_;
		2618
		2619	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2620	my ($uuid, $name) = ($1, $2);
		2621	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2622	or return;
		2623	$pl->ob->uuid eq $uuid
		2624	or return;
		2625
		2626	$pl->ob
		2627	} else {
		2628	warn "$ref: cannot resolve object reference\n";
		2629	undef
		2630	}
1435	}	2631	}
1436		2632
1437	package cf;	2633	package cf;
1438		2634
1439	=back	2635	=back
1440
1441		2636
1442	=head3 cf::object::player	2637	=head3 cf::object::player
1443		2638
1444	=over 4	2639	=over 4
1445		2640
…		…
1448	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2643	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1449	can be C<undef>. Does the right thing when the player is currently in a	2644	can be C<undef>. Does the right thing when the player is currently in a
1450	dialogue with the given NPC character.	2645	dialogue with the given NPC character.
1451		2646
1452	=cut	2647	=cut
		2648
		2649	our $SAY_CHANNEL = {
		2650	id => "say",
		2651	title => "Map",
		2652	reply => "say ",
		2653	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2654	};
		2655
		2656	our $CHAT_CHANNEL = {
		2657	id => "chat",
		2658	title => "Chat",
		2659	reply => "chat ",
		2660	tooltip => "Player chat and shouts, global to the server.",
		2661	};
1453		2662
1454	# rough implementation of a future "reply" method that works	2663	# rough implementation of a future "reply" method that works
1455	# with dialog boxes.	2664	# with dialog boxes.
1456	#TODO: the first argument must go, split into a $npc->reply_to ( method	2665	#TODO: the first argument must go, split into a $npc->reply_to ( method
1457	sub cf::object::player::reply($$$;$) {	2666	sub cf::object::player::reply($$$;$) {
…		…
1459		2668
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2669	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2670
1462	if ($self->{record_replies}) {	2671	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2672	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2673
1464	} else {	2674	} else {
		2675	my $pl = $self->contr;
		2676
		2677	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2678	my $dialog = $pl->{npc_dialog};
		2679	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2680
		2681	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2682	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2683	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2684	}
1467	}	2685	}
		2686	}
		2687
		2688	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2689
		2690	=cut
		2691
		2692	sub cf::object::send_msg {
		2693	my $pl = shift->contr
		2694	or return;
		2695	$pl->send_msg (@_);
1468	}	2696	}
1469		2697
1470	=item $player_object->may ("access")	2698	=item $player_object->may ("access")
1471		2699
1472	Returns wether the given player is authorized to access resource "access"	2700	Returns wether the given player is authorized to access resource "access"
…		…
1485		2713
1486	=item $player_object->enter_link	2714	=item $player_object->enter_link
1487		2715
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2716	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2717
1490	The player should be reaosnably safe there for short amounts of time. You	2718	The player should be reasonably safe there for short amounts of time (e.g.
1491	I<MUST> call C<leave_link> as soon as possible, though.	2719	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2720	though, as the player cannot control the character while it is on the link
		2721	map.
		2722
		2723	Will never block.
1492		2724
1493	=item $player_object->leave_link ($map, $x, $y)	2725	=item $player_object->leave_link ($map, $x, $y)
1494		2726
1495	Moves the player out of the specila link map onto the given map. If the	2727	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2728	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2729	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2730	fails, to the emergency map position.
1499		2731
1500	Might block.	2732	Might block.
1501		2733
1502	=cut	2734	=cut
		2735
		2736	sub link_map {
		2737	unless ($LINK_MAP) {
		2738	$LINK_MAP = cf::map::find "{link}"
		2739	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2740	$LINK_MAP->load;
		2741	}
		2742
		2743	$LINK_MAP
		2744	}
1503		2745
1504	sub cf::object::player::enter_link {	2746	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2747	my ($self) = @_;
1506		2748
1507	$self->deactivate_recursive;	2749	$self->deactivate_recursive;
1508		2750
1509	return if $self->map == $LINK_MAP;	2751	++$self->{_link_recursion};
		2752
		2753	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2754
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2755	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2756	if $self->map && $self->map->{path} ne "{link}";
1513		2757
1514	$self->enter_map ($LINK_MAP, 20, 20);	2758	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1515	}	2759	}
1516		2760
1517	sub cf::object::player::leave_link {	2761	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2762	my ($self, $map, $x, $y) = @_;
		2763
		2764	return unless $self->contr->active;
1519		2765
1520	my $link_pos = delete $self->{_link_pos};	2766	my $link_pos = delete $self->{_link_pos};
1521		2767
1522	unless ($map) {	2768	unless ($map) {
1523	# restore original map position	2769	# restore original map position
…		…
1534	($x, $y) = (-1, -1)	2780	($x, $y) = (-1, -1)
1535	unless (defined $x) && (defined $y);	2781	unless (defined $x) && (defined $y);
1536		2782
1537	# use -1 or undef as default coordinates, not 0, 0	2783	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2784	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2785	if $x <= 0 && $y <= 0;
1540		2786
1541	$map->load;	2787	$map->load;
1542		2788
		2789	return unless $self->contr->active;
		2790
		2791	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2792	if ($self->enter_map ($map, $x, $y)) {
		2793	# entering was successful
		2794	delete $self->{_link_recursion};
		2795	# only activate afterwards, to support waiting in hooks
1543	$self->activate_recursive;	2796	$self->activate_recursive;
1544	$self->enter_map ($map, $x, $y);
1545	}
1546
1547	cf::player->attach (
1548	on_logout => sub {
1549	my ($pl) = @_;
1550
1551	# abort map switching before logout
1552	if ($pl->ob->{_link_pos}) {
1553	cf::sync_job {
1554	$pl->ob->leave_link
1555	};
1556	}
1557	},	2797	}
1558	on_login => sub {
1559	my ($pl) = @_;
1560		2798
1561	# try to abort aborted map switching on player login :)	2799	}
1562	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574		2800
1575	=item $player_object->goto_map ($path, $x, $y)	2801	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1576		2802
1577	=cut	2803	Moves the player to the given map-path and coordinates by first freezing
		2804	her, loading and preparing them map, calling the provided $check callback
		2805	that has to return the map if sucecssful, and then unfreezes the player on
		2806	the new (success) or old (failed) map position. In either case, $done will
		2807	be called at the end of this process.
1578		2808
		2809	Note that $check will be called with a potentially non-loaded map, so if
		2810	it needs a loaded map it has to call C<< ->load >>.
		2811
		2812	=cut
		2813
		2814	our $GOTOGEN;
		2815
1579	sub cf::object::player::goto_map {	2816	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2817	my ($self, $path, $x, $y, $check, $done) = @_;
		2818
		2819	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2820	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2821	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2822	($path, $x, $y) = @$EMERGENCY_POSITION;
		2823	}
		2824
		2825	# do generation counting so two concurrent goto's will be executed in-order
		2826	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2827
1582	$self->enter_link;	2828	$self->enter_link;
1583		2829
1584	(cf::async {	2830	(async {
1585	$path = new cf::path $path;	2831	$Coro::current->{desc} = "player::goto $path $x $y";
1586		2832
1587	my $map = cf::map::find $path->as_string;	2833	# *tag paths override both path and x|y
		2834	if ($path =~ /^\*(.*)$/) {
		2835	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2836	my $ob = $obs[rand @obs];
		2837
		2838	# see if we actually can go there
		2839	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2840	$ob = $obs[rand @obs];
		2841	} else {
		2842	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2843	}
		2844	# else put us there anyways for now #d#
		2845
		2846	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2847	} else {
		2848	($path, $x, $y) = (undef, undef, undef);
		2849	}
		2850	}
		2851
		2852	my $map = eval {
		2853	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2854
		2855	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2856	$map = $map->customise_for ($self);
1589		2857	$map = $check->($map, $x, $y, $self) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2858	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2859	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2860	}
1594		2861
		2862	$map
		2863	};
		2864
		2865	if ($@) {
		2866	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2867	LOG llevError | logBacktrace, Carp::longmess $@;
		2868	}
		2869
		2870	if ($gen == $self->{_goto_generation}) {
		2871	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2872	$self->leave_link ($map, $x, $y);
		2873	}
		2874
		2875	$done->($self) if $done;
1596	})->prio (1);	2876	})->prio (1);
1597	}	2877	}
1598		2878
1599	=item $player_object->enter_exit ($exit_object)	2879	=item $player_object->enter_exit ($exit_object)
1600		2880
…		…
1602		2882
1603	sub parse_random_map_params {	2883	sub parse_random_map_params {
1604	my ($spec) = @_;	2884	my ($spec) = @_;
1605		2885
1606	my $rmp = { # defaults	2886	my $rmp = { # defaults
1607	xsize => 10,	2887	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2888	ysize => (cf::rndm 15, 40),
		2889	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2890	#layout => string,
1609	};	2891	};
1610		2892
1611	for (split /\n/, $spec) {	2893	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2894	my ($k, $v) = split /\s+/, $_, 2;
1613		2895
…		…
1625	# that depends on the exit object	2907	# that depends on the exit object
1626		2908
1627	my $rmp = parse_random_map_params $exit->msg;	2909	my $rmp = parse_random_map_params $exit->msg;
1628		2910
1629	if ($exit->map) {	2911	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2912	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2913	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2914	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2915	$rmp->{origin_y} = $exit->y;
		2916
		2917	$exit->map->touch;
1634	}	2918	}
1635		2919
1636	$rmp->{random_seed} ||= $exit->random_seed;	2920	$rmp->{random_seed} ||= $exit->random_seed;
1637		2921
1638	my $data = cf::to_json $rmp;	2922	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1639	my $md5 = Digest::MD5::md5_hex $data;	2923	my $md5 = Digest::MD5::md5_hex $data;
		2924	my $meta = "$RANDOMDIR/$md5.meta";
1640		2925
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2926	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2927	aio_write $fh, 0, (length $data), $data, 0;
		2928	undef $fh;
		2929	aio_rename "$meta~", $meta;
1643		2930
		2931	my $slaying = "?random/$md5";
		2932
		2933	if ($exit->valid) {
1644	$exit->slaying ("?random/$md5");	2934	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2935	$exit->msg (undef);
		2936	}
1646	}	2937	}
1647	}	2938	}
1648		2939
1649	sub cf::object::player::enter_exit {	2940	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2941	my ($self, $exit) = @_;
1651		2942
1652	return unless $self->type == cf::PLAYER;	2943	return unless $self->type == cf::PLAYER;
1653		2944
1654	$self->enter_link;	2945	$self->enter_link;
1655		2946
1656	(cf::async {	2947	(async {
1657	$self->deactivate_recursive; # just to be sure	2948	$Coro::current->{desc} = "enter_exit";
		2949
1658	unless (eval {	2950	unless (eval {
		2951	$self->deactivate_recursive; # just to be sure
		2952
		2953	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2954	my $x = $exit->stats->hp;
		2955	my $y = $exit->stats->sp;
		2956
		2957	# special map handling
		2958	my $slaying = $exit->slaying;
		2959
		2960	# special map handling
		2961	if ($slaying eq "/!") {
		2962	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2963
1659	prepare_random_map $exit	2964	prepare_random_map $exit
		2965	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2966
1660	if $exit->slaying eq "/!";	2967	$map = $exit->slaying;
1661		2968
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2969	} elsif ($slaying eq '!up') {
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2970	$map = $exit->map->tile_path (cf::TILE_UP);
		2971	$x = $exit->x;
		2972	$y = $exit->y;
1664		2973
		2974	} elsif ($slaying eq '!down') {
		2975	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2976	$x = $exit->x;
		2977	$y = $exit->y;
		2978	}
		2979
		2980	$self->goto ($map, $x, $y);
		2981
		2982	# if exit is damned, update players death & WoR home-position
		2983	$self->contr->savebed ($map, $x, $y)
		2984	if $exit->flag (cf::FLAG_DAMNED);
		2985
1665	1;	2986	1
1666	}) {	2987	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2988	$self->message ("Something went wrong deep within the deliantra server. "
1668	. "I'll try to bring you back to the map you were before. "	2989	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2990	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2991	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2992
1672	warn "ERROR in enter_exit: $@";	2993	error "ERROR in enter_exit: $@";
1673	$self->leave_link;	2994	$self->leave_link;
1674	}	2995	}
1675	})->prio (1);	2996	})->prio (1);
1676	}	2997	}
1677		2998
…		…
1688		3009
1689	sub cf::client::send_drawinfo {	3010	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	3011	my ($self, $text, $flags) = @_;
1691		3012
1692	utf8::encode $text;	3013	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3014	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	3015	}
1695		3016
		3017	=item $client->send_big_packet ($pkt)
		3018
		3019	Like C<send_packet>, but tries to compress large packets, and fragments
		3020	them as required.
		3021
		3022	=cut
		3023
		3024	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3025
		3026	sub cf::client::send_big_packet {
		3027	my ($self, $pkt) = @_;
		3028
		3029	# try lzf for large packets
		3030	$pkt = "lzf " . Compress::LZF::compress $pkt
		3031	if 1024 <= length $pkt and $self->{can_lzf};
		3032
		3033	# split very large packets
		3034	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3035	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3036	$pkt = "frag";
		3037	}
		3038
		3039	$self->send_packet ($pkt);
		3040	}
		3041
		3042	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3043
		3044	Send a drawinfo or msg packet to the client, formatting the msg for the
		3045	client if neccessary. C<$type> should be a string identifying the type of
		3046	the message, with C<log> being the default. If C<$color> is negative, suppress
		3047	the message unless the client supports the msg packet.
		3048
		3049	=cut
		3050
		3051	# non-persistent channels (usually the info channel)
		3052	our %CHANNEL = (
		3053	"c/motd" => {
		3054	id => "infobox",
		3055	title => "MOTD",
		3056	reply => undef,
		3057	tooltip => "The message of the day",
		3058	},
		3059	"c/identify" => {
		3060	id => "infobox",
		3061	title => "Identify",
		3062	reply => undef,
		3063	tooltip => "Items recently identified",
		3064	},
		3065	"c/examine" => {
		3066	id => "infobox",
		3067	title => "Examine",
		3068	reply => undef,
		3069	tooltip => "Signs and other items you examined",
		3070	},
		3071	"c/shopinfo" => {
		3072	id => "infobox",
		3073	title => "Shop Info",
		3074	reply => undef,
		3075	tooltip => "What your bargaining skill tells you about the shop",
		3076	},
		3077	"c/book" => {
		3078	id => "infobox",
		3079	title => "Book",
		3080	reply => undef,
		3081	tooltip => "The contents of a note or book",
		3082	},
		3083	"c/lookat" => {
		3084	id => "infobox",
		3085	title => "Look",
		3086	reply => undef,
		3087	tooltip => "What you saw there",
		3088	},
		3089	"c/who" => {
		3090	id => "infobox",
		3091	title => "Players",
		3092	reply => undef,
		3093	tooltip => "Shows players who are currently online",
		3094	},
		3095	"c/body" => {
		3096	id => "infobox",
		3097	title => "Body Parts",
		3098	reply => undef,
		3099	tooltip => "Shows which body parts you posess and are available",
		3100	},
		3101	"c/statistics" => {
		3102	id => "infobox",
		3103	title => "Statistics",
		3104	reply => undef,
		3105	tooltip => "Shows your primary statistics",
		3106	},
		3107	"c/skills" => {
		3108	id => "infobox",
		3109	title => "Skills",
		3110	reply => undef,
		3111	tooltip => "Shows your experience per skill and item power",
		3112	},
		3113	"c/shopitems" => {
		3114	id => "infobox",
		3115	title => "Shop Items",
		3116	reply => undef,
		3117	tooltip => "Shows the items currently for sale in this shop",
		3118	},
		3119	"c/resistances" => {
		3120	id => "infobox",
		3121	title => "Resistances",
		3122	reply => undef,
		3123	tooltip => "Shows your resistances",
		3124	},
		3125	"c/pets" => {
		3126	id => "infobox",
		3127	title => "Pets",
		3128	reply => undef,
		3129	tooltip => "Shows information abotu your pets/a specific pet",
		3130	},
		3131	"c/perceiveself" => {
		3132	id => "infobox",
		3133	title => "Perceive Self",
		3134	reply => undef,
		3135	tooltip => "You gained detailed knowledge about yourself",
		3136	},
		3137	"c/uptime" => {
		3138	id => "infobox",
		3139	title => "Uptime",
		3140	reply => undef,
		3141	tooltip => "How long the server has been running since last restart",
		3142	},
		3143	"c/mapinfo" => {
		3144	id => "infobox",
		3145	title => "Map Info",
		3146	reply => undef,
		3147	tooltip => "Information related to the maps",
		3148	},
		3149	"c/party" => {
		3150	id => "party",
		3151	title => "Party",
		3152	reply => "gsay ",
		3153	tooltip => "Messages and chat related to your party",
		3154	},
		3155	"c/death" => {
		3156	id => "death",
		3157	title => "Death",
		3158	reply => undef,
		3159	tooltip => "Reason for and more info about your most recent death",
		3160	},
		3161	"c/say" => $SAY_CHANNEL,
		3162	"c/chat" => $CHAT_CHANNEL,
		3163	);
		3164
		3165	sub cf::client::send_msg {
		3166	my ($self, $channel, $msg, $color, @extra) = @_;
		3167
		3168	$msg = $self->pl->expand_cfpod ($msg)
		3169	unless $color & cf::NDI_VERBATIM;
		3170
		3171	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3172
		3173	# check predefined channels, for the benefit of C
		3174	if ($CHANNEL{$channel}) {
		3175	$channel = $CHANNEL{$channel};
		3176
		3177	$self->ext_msg (channel_info => $channel);
		3178	$channel = $channel->{id};
		3179
		3180	} elsif (ref $channel) {
		3181	# send meta info to client, if not yet sent
		3182	unless (exists $self->{channel}{$channel->{id}}) {
		3183	$self->{channel}{$channel->{id}} = $channel;
		3184	$self->ext_msg (channel_info => $channel);
		3185	}
		3186
		3187	$channel = $channel->{id};
		3188	}
		3189
		3190	return unless @extra || length $msg;
		3191
		3192	# default colour, mask it out
		3193	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3194	if $color & cf::NDI_DEF;
		3195
		3196	my $pkt = "msg "
		3197	. $self->{json_coder}->encode (
		3198	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3199	);
		3200
		3201	$self->send_big_packet ($pkt);
		3202	}
		3203
		3204	=item $client->ext_msg ($type, @msg)
		3205
		3206	Sends an ext event to the client.
		3207
		3208	=cut
		3209
		3210	sub cf::client::ext_msg($$@) {
		3211	my ($self, $type, @msg) = @_;
		3212
		3213	if ($self->extcmd == 2) {
		3214	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3215	} elsif ($self->extcmd == 1) { # TODO: remove
		3216	push @msg, msgtype => "event_$type";
		3217	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3218	}
		3219	}
		3220
		3221	=item $client->ext_reply ($msgid, @msg)
		3222
		3223	Sends an ext reply to the client.
		3224
		3225	=cut
		3226
		3227	sub cf::client::ext_reply($$@) {
		3228	my ($self, $id, @msg) = @_;
		3229
		3230	return unless $self->extcmd == 2;
		3231
		3232	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3233	}
1696		3234
1697	=item $success = $client->query ($flags, "text", \&cb)	3235	=item $success = $client->query ($flags, "text", \&cb)
1698		3236
1699	Queues a query to the client, calling the given callback with	3237	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3238	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3239	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		3240
1703	Queries can fail, so check the return code. Or don't, as queries will become	3241	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	3242	become reliable at some point in the future.
1705		3243
1706	=cut	3244	=cut
1707		3245
1708	sub cf::client::query {	3246	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	3247	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	3255	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3256	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		3257
1720	$self->send_packet ($self->{query_queue}[0][0])	3258	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	3259	if @{ $self->{query_queue} } == 1;
		3260
		3261	1
1722	}	3262	}
1723		3263
1724	cf::client->attach (	3264	cf::client->attach (
		3265	on_connect => sub {
		3266	my ($ns) = @_;
		3267
		3268	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3269	},
1725	on_reply => sub {	3270	on_reply => sub {
1726	my ($ns, $msg) = @_;	3271	my ($ns, $msg) = @_;
1727		3272
1728	# this weird shuffling is so that direct followup queries	3273	# this weird shuffling is so that direct followup queries
1729	# get handled first	3274	# get handled first
1730	my $queue = delete $ns->{query_queue}	3275	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	3276	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		3277
1733	(shift @$queue)->[1]->($msg);	3278	(shift @$queue)->[1]->($msg);
		3279	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		3280
1735	push @{ $ns->{query_queue} }, @$queue;	3281	push @{ $ns->{query_queue} }, @$queue;
1736		3282
1737	if (@{ $ns->{query_queue} } == @$queue) {	3283	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	3284	if (@$queue) {
…		…
1740	} else {	3286	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3287	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	3288	}
1743	}	3289	}
1744	},	3290	},
		3291	on_exticmd => sub {
		3292	my ($ns, $buf) = @_;
		3293
		3294	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3295
		3296	if (ref $msg) {
		3297	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3298
		3299	my @reply;
		3300
		3301	if (my $cb = $EXTICMD{$type}) {
		3302	@reply = $cb->($ns, @payload);
		3303	}
		3304
		3305	$ns->ext_reply ($reply, @reply)
		3306	if $reply;
		3307
		3308	} else {
		3309	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3310	}
		3311
		3312	cf::override;
		3313	},
1745	);	3314	);
1746		3315
1747	=item $client->coro (\&cb)	3316	=item $client->async (\&cb)
1748		3317
1749	Create a new coroutine, running the specified callback. The coroutine will	3318	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	3319	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	3320	or loss of connection).
1752		3321
1753	=cut	3322	=cut
1754		3323
1755	sub cf::client::coro {	3324	sub cf::client::async {
1756	my ($self, $cb) = @_;	3325	my ($self, $cb) = @_;
1757		3326
1758	my $coro = &cf::async ($cb);	3327	my $coro = &Coro::async ($cb);
1759		3328
1760	$coro->on_destroy (sub {	3329	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	3330	delete $self->{_coro}{$coro+0};
1762	});	3331	});
1763		3332
…		…
1765		3334
1766	$coro	3335	$coro
1767	}	3336	}
1768		3337
1769	cf::client->attach (	3338	cf::client->attach (
1770	on_destroy => sub {	3339	on_client_destroy => sub {
1771	my ($ns) = @_;	3340	my ($ns) = @_;
1772		3341
1773	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3342	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1774	},	3343	},
1775	);	3344	);
…		…
1790	our $safe = new Safe "safe";	3359	our $safe = new Safe "safe";
1791	our $safe_hole = new Safe::Hole;	3360	our $safe_hole = new Safe::Hole;
1792		3361
1793	$SIG{FPE} = 'IGNORE';	3362	$SIG{FPE} = 'IGNORE';
1794		3363
1795	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3364	$safe->permit_only (Opcode::opset qw(
		3365	:base_core :base_mem :base_orig :base_math :base_loop
		3366	grepstart grepwhile mapstart mapwhile
		3367	sort time
		3368	));
1796		3369
1797	# here we export the classes and methods available to script code	3370	# here we export the classes and methods available to script code
1798		3371
1799	=pod	3372	=pod
1800		3373
1801	The following fucntions and emthods are available within a safe environment:	3374	The following functions and methods are available within a safe environment:
1802		3375
1803	cf::object contr pay_amount pay_player map	3376	cf::object
		3377	contr pay_amount pay_player map x y force_find force_add destroy
		3378	insert remove name archname title slaying race decrease split
		3379	value
		3380
1804	cf::object::player player	3381	cf::object::player
1805	cf::player peaceful	3382	player
1806	cf::map trigger	3383
		3384	cf::player
		3385	peaceful
		3386
		3387	cf::map
		3388	trigger
1807		3389
1808	=cut	3390	=cut
1809		3391
1810	for (	3392	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	3393	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3394	insert remove inv nrof name archname title slaying race
		3395	decrease split destroy change_exp value msg lore send_msg)],
1812	["cf::object::player" => qw(player)],	3396	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	3397	["cf::player" => qw(peaceful send_msg)],
1814	["cf::map" => qw(trigger)],	3398	["cf::map" => qw(trigger)],
1815	) {	3399	) {
1816	no strict 'refs';
1817	my ($pkg, @funs) = @$_;	3400	my ($pkg, @funs) = @$_;
1818	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3401	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1819	for @funs;	3402	for @funs;
1820	}	3403	}
1821		3404
…		…
1836		3419
1837	my $qcode = $code;	3420	my $qcode = $code;
1838	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3421	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1839	$qcode =~ s/\n/\\n/g;	3422	$qcode =~ s/\n/\\n/g;
1840		3423
		3424	%vars = (_dummy => 0) unless %vars;
		3425
		3426	my @res;
1841	local $_;	3427	local $_;
1842	local @safe::cf::_safe_eval_args = values %vars;
1843		3428
1844	my $eval =	3429	my $eval =
1845	"do {\n"	3430	"do {\n"
1846	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3431	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1847	. "#line 0 \"{$qcode}\"\n"	3432	. "#line 0 \"{$qcode}\"\n"
1848	. $code	3433	. $code
1849	. "\n}"	3434	. "\n}"
1850	;	3435	;
1851		3436
		3437	if ($CFG{safe_eval}) {
1852	sub_generation_inc;	3438	sub_generation_inc;
		3439	local @safe::cf::_safe_eval_args = values %vars;
1853	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3440	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1854	sub_generation_inc;	3441	sub_generation_inc;
		3442	} else {
		3443	local @cf::_safe_eval_args = values %vars;
		3444	@res = wantarray ? eval eval : scalar eval $eval;
		3445	}
1855		3446
1856	if ($@) {	3447	if ($@) {
1857	warn "$@";	3448	warn "$@",
1858	warn "while executing safe code '$code'\n";	3449	"while executing safe code '$code'\n",
1859	warn "with arguments " . (join " ", %vars) . "\n";	3450	"with arguments " . (join " ", %vars) . "\n";
1860	}	3451	}
1861		3452
1862	wantarray ? @res : $res[0]	3453	wantarray ? @res : $res[0]
1863	}	3454	}
1864		3455
…		…
1878	=cut	3469	=cut
1879		3470
1880	sub register_script_function {	3471	sub register_script_function {
1881	my ($fun, $cb) = @_;	3472	my ($fun, $cb) = @_;
1882		3473
1883	no strict 'refs';	3474	$fun = "safe::$fun" if $CFG{safe_eval};
1884	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3475	*$fun = $safe_hole->wrap ($cb);
1885	}	3476	}
1886		3477
1887	=back	3478	=back
1888		3479
1889	=cut	3480	=cut
1890		3481
1891	#############################################################################	3482	#############################################################################
		3483	# the server's init and main functions
1892		3484
1893	=head2 EXTENSION DATABASE SUPPORT	3485	sub load_facedata($) {
		3486	my ($path) = @_;
1894		3487
1895	Crossfire maintains a very simple database for extension use. It can	3488	# HACK to clear player env face cache, we need some signal framework
1896	currently store anything that can be serialised using Storable, which	3489	# for this (global event?)
1897	excludes objects.	3490	%ext::player_env::MUSIC_FACE_CACHE = ();
1898		3491
1899	The parameter C<$family> should best start with the name of the extension	3492	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1900	using it, it should be unique.
1901		3493
1902	=over 4	3494	trace "loading facedata from $path\n";
1903		3495
1904	=item $hashref = cf::db_get $family	3496	my $facedata = decode_storable load_file $path;
1905		3497
1906	Return a hashref for use by the extension C<$family>, which can be	3498	$facedata->{version} == 2
1907	modified. After modifications, you have to call C<cf::db_dirty> or	3499	or cf::cleanup "$path: version mismatch, cannot proceed.";
1908	C<cf::db_sync>.
1909		3500
1910	=item $value = cf::db_get $family => $key	3501	# patch in the exptable
1911		3502	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1912	Returns a single value from the database	3503	$facedata->{resource}{"res/exp_table"} = {
1913		3504	type => FT_RSRC,
1914	=item cf::db_put $family => $hashref	3505	data => $exp_table,
1915		3506	hash => (Digest::MD5::md5 $exp_table),
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}
1942
1943	my $pid;
1944
1945	sub db_save() {
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	3507	};
		3508	cf::cede_to_tick;
1965		3509
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}	3510	{
		3511	my $faces = $facedata->{faceinfo};
1970		3512
1971	sub db_get($;$) {	3513	while (my ($face, $info) = each %$faces) {
1972	@_ >= 2	3514	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		3515
1977	sub db_put($$;$) {	3516	cf::face::set_visibility $idx, $info->{visibility};
1978	if (@_ >= 3) {	3517	cf::face::set_magicmap $idx, $info->{magicmap};
1979	$DB->{$_[0]}{$_[1]} = $_[2];	3518	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1980	} else {	3519	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1981	$DB->{$_[0]} = $_[1];	3520	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1982	}
1983	db_dirty;
1984	}
1985		3521
1986	cf::global->attach (	3522	cf::cede_to_tick;
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	3523	}
1991	);
1992	}
1993		3524
1994	#############################################################################	3525	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	3526	next unless $info->{smooth};
1996		3527
1997	sub cfg_load {	3528	my $idx = cf::face::find $face
1998	open my $fh, "<:utf8", cf::confdir . "/config"	3529	or next;
1999	or return;
2000		3530
2001	local $/;	3531	if (my $smooth = cf::face::find $info->{smooth}) {
2002	*CFG = YAML::Syck::Load <$fh>;	3532	cf::face::set_smooth $idx, $smooth;
		3533	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3534	} else {
		3535	error "smooth face '$info->{smooth}' not found for face '$face'";
		3536	}
2003		3537
		3538	cf::cede_to_tick;
		3539	}
		3540	}
		3541
		3542	{
		3543	my $anims = $facedata->{animinfo};
		3544
		3545	while (my ($anim, $info) = each %$anims) {
		3546	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3547	cf::cede_to_tick;
		3548	}
		3549
		3550	cf::anim::invalidate_all; # d'oh
		3551	}
		3552
		3553	{
		3554	my $res = $facedata->{resource};
		3555
		3556	while (my ($name, $info) = each %$res) {
		3557	if (defined (my $type = $info->{type})) {
		3558	# TODO: different hash - must free and use new index, or cache ixface data queue
		3559	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3560
		3561	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3562	cf::face::set_type $idx, $type;
		3563	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3564	} else {
		3565	# $RESOURCE{$name} = $info; # unused
		3566	}
		3567
		3568	cf::cede_to_tick;
		3569	}
		3570	}
		3571
		3572	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3573
		3574	1
		3575	}
		3576
		3577	register_exticmd fx_want => sub {
		3578	my ($ns, $want) = @_;
		3579
		3580	while (my ($k, $v) = each %$want) {
		3581	$ns->fx_want ($k, $v);
		3582	}
		3583	};
		3584
		3585	sub load_resource_file($) {
		3586	my $guard = lock_acquire "load_resource_file";
		3587
		3588	my $status = load_resource_file_ $_[0];
		3589	get_slot 0.1, 100;
		3590	cf::arch::commit_load;
		3591
		3592	$status
		3593	}
		3594
		3595	sub reload_regions {
		3596	# HACK to clear player env face cache, we need some signal framework
		3597	# for this (global event?)
		3598	%ext::player_env::MUSIC_FACE_CACHE = ();
		3599
		3600	load_resource_file "$MAPDIR/regions"
		3601	or die "unable to load regions file\n";
		3602
		3603	for (cf::region::list) {
		3604	$_->{match} = qr/$_->{match}/
		3605	if exists $_->{match};
		3606	}
		3607	}
		3608
		3609	sub reload_facedata {
		3610	load_facedata "$DATADIR/facedata"
		3611	or die "unable to load facedata\n";
		3612	}
		3613
		3614	sub reload_archetypes {
		3615	load_resource_file "$DATADIR/archetypes"
		3616	or die "unable to load archetypes\n";
		3617	}
		3618
		3619	sub reload_treasures {
		3620	load_resource_file "$DATADIR/treasures"
		3621	or die "unable to load treasurelists\n";
		3622	}
		3623
		3624	sub reload_sound {
		3625	trace "loading sound config from $DATADIR/sound\n";
		3626
		3627	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3628
		3629	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3630	my $sound = $soundconf->{compat}[$_]
		3631	or next;
		3632
		3633	my $face = cf::face::find "sound/$sound->[1]";
		3634	cf::sound::set $sound->[0] => $face;
		3635	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3636	}
		3637
		3638	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3639	my $face = cf::face::find "sound/$v";
		3640	cf::sound::set $k => $face;
		3641	}
		3642	}
		3643
		3644	sub reload_resources {
		3645	trace "reloading resource files...\n";
		3646
		3647	reload_exp_table;
		3648	reload_materials;
		3649	reload_facedata;
		3650	reload_sound;
		3651	reload_archetypes;
		3652	reload_regions;
		3653	reload_treasures;
		3654
		3655	trace "finished reloading resource files\n";
		3656	}
		3657
		3658	sub reload_config {
		3659	trace "reloading config file...\n";
		3660
		3661	my $config = load_file "$CONFDIR/config";
		3662	utf8::decode $config;
		3663	*CFG = decode_yaml $config;
		3664
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3665	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3666
		3667	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3668	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2005		3669
2006	if (exists $CFG{mlockall}) {	3670	if (exists $CFG{mlockall}) {
2007	eval {	3671	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	3672	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	3673	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	3674	};
2011	warn $@ if $@;	3675	warn $@ if $@;
2012	}	3676	}
2013	}	3677	}
2014		3678
		3679	sub pidfile() {
		3680	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3681	or die "$PIDFILE: $!";
		3682	flock $fh, &Fcntl::LOCK_EX
		3683	or die "$PIDFILE: flock: $!";
		3684	$fh
		3685	}
		3686
		3687	# make sure only one server instance is running at any one time
		3688	sub atomic {
		3689	my $fh = pidfile;
		3690
		3691	my $pid = <$fh>;
		3692	kill 9, $pid if $pid > 0;
		3693
		3694	seek $fh, 0, 0;
		3695	print $fh $$;
		3696	}
		3697
		3698	sub main_loop {
		3699	trace "EV::loop starting\n";
		3700	if (1) {
		3701	EV::loop;
		3702	}
		3703	trace "EV::loop returned\n";
		3704	goto &main_loop unless $REALLY_UNLOOP;
		3705	}
		3706
2015	sub main {	3707	sub main {
		3708	cf::init_globals; # initialise logging
		3709
		3710	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3711	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3712	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3713	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3714
		3715	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3716
2016	# we must not ever block the main coroutine	3717	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	3718	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3719	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	3720	(async {
2020	Event::one_event;	3721	$Coro::current->{desc} = "IDLE BUG HANDLER";
2021	})->();	3722	EV::loop EV::LOOP_ONESHOT;
		3723	})->prio (Coro::PRIO_MAX);
2022	};	3724	};
2023		3725
2024	cfg_load;	3726	evthread_start IO::AIO::poll_fileno;
2025	db_load;	3727
		3728	cf::sync_job {
		3729	cf::incloader::init ();
		3730
		3731	cf::init_anim;
		3732	cf::init_attackmess;
		3733	cf::init_dynamic;
		3734
		3735	cf::load_settings;
		3736
		3737	reload_resources;
		3738	reload_config;
		3739	db_init;
		3740
		3741	cf::init_uuid;
		3742	cf::init_signals;
		3743	cf::init_skills;
		3744
		3745	cf::init_beforeplay;
		3746
		3747	atomic;
		3748
2026	load_extensions;	3749	load_extensions;
2027	Event::loop;	3750
		3751	utime time, time, $RUNTIMEFILE;
		3752
		3753	# no (long-running) fork's whatsoever before this point(!)
		3754	use POSIX ();
		3755	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3756
		3757	cf::_post_init 0;
		3758	};
		3759
		3760	cf::object::thawer::errors_are_fatal 0;
		3761	info "parse errors in files are no longer fatal from this point on.\n";
		3762
		3763	AE::postpone {
		3764	undef &main; # free gobs of memory :)
		3765	};
		3766
		3767	goto &main_loop;
2028	}	3768	}
2029		3769
2030	#############################################################################	3770	#############################################################################
2031	# initialisation	3771	# initialisation and cleanup
2032		3772
		3773	# install some emergency cleanup handlers
		3774	BEGIN {
		3775	our %SIGWATCHER = ();
		3776	for my $signal (qw(INT HUP TERM)) {
		3777	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3778	cf::cleanup "SIG$signal";
		3779	};
		3780	}
		3781	}
		3782
		3783	sub write_runtime_sync {
		3784	my $t0 = AE::time;
		3785
		3786	# first touch the runtime file to show we are still running:
		3787	# the fsync below can take a very very long time.
		3788
		3789	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3790
		3791	my $guard = cf::lock_acquire "write_runtime";
		3792
		3793	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3794	or return;
		3795
		3796	my $value = $cf::RUNTIME + 90 + 10;
		3797	# 10 is the runtime save interval, for a monotonic clock
		3798	# 60 allows for the watchdog to kill the server.
		3799
		3800	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3801	and return;
		3802
		3803	# always fsync - this file is important
		3804	aio_fsync $fh
		3805	and return;
		3806
		3807	# touch it again to show we are up-to-date
		3808	aio_utime $fh, undef, undef;
		3809
		3810	close $fh
		3811	or return;
		3812
		3813	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3814	and return;
		3815
		3816	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3817
		3818	1
		3819	}
		3820
		3821	our $uuid_lock;
		3822	our $uuid_skip;
		3823
		3824	sub write_uuid_sync($) {
		3825	$uuid_skip ||= $_[0];
		3826
		3827	return if $uuid_lock;
		3828	local $uuid_lock = 1;
		3829
		3830	my $uuid = "$LOCALDIR/uuid";
		3831
		3832	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3833	or return;
		3834
		3835	my $value = uuid_seq uuid_cur;
		3836
		3837	unless ($value) {
		3838	info "cowardly refusing to write zero uuid value!\n";
		3839	return;
		3840	}
		3841
		3842	my $value = uuid_str $value + $uuid_skip;
		3843	$uuid_skip = 0;
		3844
		3845	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3846	and return;
		3847
		3848	# always fsync - this file is important
		3849	aio_fsync $fh
		3850	and return;
		3851
		3852	close $fh
		3853	or return;
		3854
		3855	aio_rename "$uuid~", $uuid
		3856	and return;
		3857
		3858	trace "uuid file written ($value).\n";
		3859
		3860	1
		3861
		3862	}
		3863
		3864	sub write_uuid($$) {
		3865	my ($skip, $sync) = @_;
		3866
		3867	$sync ? write_uuid_sync $skip
		3868	: async { write_uuid_sync $skip };
		3869	}
		3870
		3871	sub emergency_save() {
		3872	my $freeze_guard = cf::freeze_mainloop;
		3873
		3874	info "emergency_perl_save: enter\n";
		3875
		3876	# this is a trade-off: we want to be very quick here, so
		3877	# save all maps without fsync, and later call a global sync
		3878	# (which in turn might be very very slow)
		3879	local $USE_FSYNC = 0;
		3880
		3881	cf::sync_job {
		3882	cf::write_runtime_sync; # external watchdog should not bark
		3883
		3884	# use a peculiar iteration method to avoid tripping on perl
		3885	# refcount bugs in for. also avoids problems with players
		3886	# and maps saved/destroyed asynchronously.
		3887	info "emergency_perl_save: begin player save\n";
		3888	for my $login (keys %cf::PLAYER) {
		3889	my $pl = $cf::PLAYER{$login} or next;
		3890	$pl->valid or next;
		3891	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3892	$pl->save;
		3893	}
		3894	info "emergency_perl_save: end player save\n";
		3895
		3896	cf::write_runtime_sync; # external watchdog should not bark
		3897
		3898	info "emergency_perl_save: begin map save\n";
		3899	for my $path (keys %cf::MAP) {
		3900	my $map = $cf::MAP{$path} or next;
		3901	$map->valid or next;
		3902	$map->save;
		3903	}
		3904	info "emergency_perl_save: end map save\n";
		3905
		3906	cf::write_runtime_sync; # external watchdog should not bark
		3907
		3908	info "emergency_perl_save: begin database checkpoint\n";
		3909	BDB::db_env_txn_checkpoint $DB_ENV;
		3910	info "emergency_perl_save: end database checkpoint\n";
		3911
		3912	info "emergency_perl_save: begin write uuid\n";
		3913	write_uuid_sync 1;
		3914	info "emergency_perl_save: end write uuid\n";
		3915
		3916	cf::write_runtime_sync; # external watchdog should not bark
		3917
		3918	trace "emergency_perl_save: syncing database to disk";
		3919	BDB::db_env_txn_checkpoint $DB_ENV;
		3920
		3921	info "emergency_perl_save: starting sync\n";
		3922	IO::AIO::aio_sync sub {
		3923	info "emergency_perl_save: finished sync\n";
		3924	};
		3925
		3926	cf::write_runtime_sync; # external watchdog should not bark
		3927
		3928	trace "emergency_perl_save: flushing outstanding aio requests";
		3929	while (IO::AIO::nreqs || BDB::nreqs) {
		3930	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3931	}
		3932
		3933	cf::write_runtime_sync; # external watchdog should not bark
		3934	};
		3935
		3936	info "emergency_perl_save: leave\n";
		3937	}
		3938
		3939	sub post_cleanup {
		3940	my ($make_core) = @_;
		3941
		3942	IO::AIO::flush;
		3943
		3944	error Carp::longmess "post_cleanup backtrace"
		3945	if $make_core;
		3946
		3947	my $fh = pidfile;
		3948	unlink $PIDFILE if <$fh> == $$;
		3949	}
		3950
		3951	# a safer delete_package, copied from Symbol
		3952	sub clear_package($) {
		3953	my $pkg = shift;
		3954
		3955	# expand to full symbol table name if needed
		3956	unless ($pkg =~ /^main::.*::$/) {
		3957	$pkg = "main$pkg" if $pkg =~ /^::/;
		3958	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3959	$pkg .= '::' unless $pkg =~ /::$/;
		3960	}
		3961
		3962	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3963	my $stem_symtab = *{$stem}{HASH};
		3964
		3965	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3966	or return;
		3967
		3968	# clear all symbols
		3969	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3970	for my $name (keys %$leaf_symtab) {
		3971	_gv_clear *{"$pkg$name"};
		3972	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3973	}
		3974	}
		3975
2033	sub reload() {	3976	sub do_reload_perl() {
2034	# can/must only be called in main	3977	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	3978	unless (in_main) {
2036	warn "can only reload from main coroutine\n";	3979	error "can only reload from main coroutine";
2037	return;	3980	return;
2038	}	3981	}
2039		3982
2040	warn "reloading...";	3983	return if $RELOAD++;
2041		3984
2042	my $guard = freeze_mainloop;	3985	my $t1 = AE::time;
		3986
		3987	while ($RELOAD) {
		3988	cf::get_slot 0.1, -1, "reload_perl";
		3989	info "perl_reload: reloading...";
		3990
		3991	trace "perl_reload: entering sync_job";
		3992
		3993	cf::sync_job {
2043	cf::emergency_save;	3994	#cf::emergency_save;
2044		3995
2045	eval {	3996	trace "perl_reload: cancelling all extension coros";
2046	# if anything goes wrong in here, we should simply crash as we already saved
2047
2048	# cancel all watchers
2049	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}
2052
2053	# cancel all extension coros
2054	$_->cancel for values %EXT_CORO;	3997	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	3998	%EXT_CORO = ();
2056		3999
2057	# unload all extensions	4000	trace "perl_reload: removing commands";
2058	for (@exts) {	4001	%COMMAND = ();
2059	warn "unloading <$_>";
2060	unload_extension $_;
2061	}
2062		4002
2063	# unload all modules loaded from $LIBDIR	4003	trace "perl_reload: removing ext/exti commands";
2064	while (my ($k, $v) = each %INC) {	4004	%EXTCMD = ();
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4005	%EXTICMD = ();
2066		4006
2067	warn "removing <$k>";	4007	trace "perl_reload: unloading/nuking all extensions";
2068	delete $INC{$k};	4008	for my $pkg (@EXTS) {
		4009	trace "... unloading $pkg";
2069		4010
2070	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;
2072
2073	if (my $cb = $k->can ("unload_module")) {	4011	if (my $cb = $pkg->can ("unload")) {
		4012	eval {
2074	$cb->();	4013	$cb->($pkg);
		4014	1
		4015	} or error "$pkg unloaded, but with errors: $@";
		4016	}
		4017
		4018	trace "... clearing $pkg";
		4019	clear_package $pkg;
2075	}	4020	}
2076		4021
2077	Symbol::delete_package $k;	4022	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4023	while (my ($k, $v) = each %INC) {
		4024	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4025
		4026	trace "... unloading $k";
		4027	delete $INC{$k};
		4028
		4029	$k =~ s/\.pm$//;
		4030	$k =~ s/\//::/g;
		4031
		4032	if (my $cb = $k->can ("unload_module")) {
		4033	$cb->();
		4034	}
		4035
		4036	clear_package $k;
2078	}	4037	}
2079		4038
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	4039	trace "perl_reload: getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	4040	clear_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4041	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		4042
2088	# remove register_script_function callbacks	4043	trace "perl_reload: unloading cf.pm \"a bit\"";
2089	# TODO
2090
2091	# unload cf.pm "a bit"
2092	delete $INC{"cf.pm"};	4044	delete $INC{"cf.pm"};
		4045	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2093		4046
2094	# don't, removes xs symbols, too,	4047	# don't, removes xs symbols, too,
2095	# and global variables created in xs	4048	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	4049	#clear_package __PACKAGE__;
2097		4050
2098	# reload cf.pm	4051	info "perl_reload: unload completed, starting to reload now";
2099	warn "reloading cf.pm";	4052
		4053	trace "perl_reload: reloading cf.pm";
2100	require cf;	4054	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4055	cf::_connect_to_perl_1;
2102		4056
2103	# load config and database again	4057	trace "perl_reload: loading config and database again";
2104	cf::cfg_load;	4058	cf::reload_config;
2105	cf::db_load;
2106		4059
2107	# load extensions	4060	trace "perl_reload: loading extensions";
2108	warn "load extensions";
2109	cf::load_extensions;	4061	cf::load_extensions;
2110		4062
2111	# reattach attachments to objects	4063	if ($REATTACH_ON_RELOAD) {
2112	warn "reattach";	4064	trace "perl_reload: reattaching attachments to objects/players";
2113	_global_reattach;	4065	_global_reattach; # objects, sockets
		4066	trace "perl_reload: reattaching attachments to maps";
		4067	reattach $_ for values %MAP;
		4068	trace "perl_reload: reattaching attachments to players";
		4069	reattach $_ for values %PLAYER;
		4070	}
		4071
		4072	cf::_post_init 1;
		4073
		4074	trace "perl_reload: leaving sync_job";
		4075
		4076	1
		4077	} or do {
		4078	error $@;
		4079	cf::cleanup "perl_reload: error, exiting.";
		4080	};
		4081
		4082	--$RELOAD;
		4083	}
		4084
		4085	$t1 = AE::time - $t1;
		4086	info "perl_reload: completed in ${t1}s\n";
		4087	};
		4088
		4089	our $RELOAD_WATCHER; # used only during reload
		4090
		4091	sub reload_perl() {
		4092	# doing reload synchronously and two reloads happen back-to-back,
		4093	# coro crashes during coro_state_free->destroy here.
		4094
		4095	$RELOAD_WATCHER ||= cf::async {
		4096	Coro::AIO::aio_wait cache_extensions;
		4097
		4098	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4099	do_reload_perl;
		4100	undef $RELOAD_WATCHER;
		4101	};
2114	};	4102	};
2115
2116	if ($@) {
2117	warn $@;
2118	warn "error while reloading, exiting.";
2119	exit 1;
2120	}
2121
2122	warn "reloaded successfully";
2123	};
2124
2125	#############################################################################
2126
2127	unless ($LINK_MAP) {
2128	$LINK_MAP = cf::map::new;
2129
2130	$LINK_MAP->width (41);
2131	$LINK_MAP->height (41);
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,
2140	cb => sub {
2141	$_[0]->w->cancel;
2142
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});
2161
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	4103	}
2167
2168	register "<global>", __PACKAGE__;
2169		4104
2170	register_command "reload" => sub {	4105	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	4106	my ($who, $arg) = @_;
2172		4107
2173	if ($who->flag (FLAG_WIZ)) {	4108	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	4109	$who->message ("reloading server.");
		4110	async {
		4111	$Coro::current->{desc} = "perl_reload";
		4112	reload_perl;
		4113	};
2177	}	4114	}
2178	};	4115	};
2179		4116
2180	unshift @INC, $LIBDIR;	4117	#############################################################################
2181		4118
2182	$TICK_WATCHER = Event->timer (	4119	my $bug_warning = 0;
2183	reentrant => 0,
2184	prio => 0,
2185	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,
2187	cb => sub {
2188	cf::server_tick; # one server iteration
2189	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;
2191		4120
2192	# if we are delayed by four ticks or more, skip them all	4121	sub wait_for_tick() {
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4122	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2194		4123
2195	$TICK_WATCHER->at ($NEXT_TICK);	4124	$WAIT_FOR_TICK->wait;
2196	$TICK_WATCHER->start;	4125	}
		4126
		4127	sub wait_for_tick_begin() {
		4128	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4129
		4130	my $signal = new Coro::Signal;
		4131	push @WAIT_FOR_TICK_BEGIN, $signal;
		4132	$signal->wait;
		4133	}
		4134
		4135	sub tick {
		4136	if ($Coro::current != $Coro::main) {
		4137	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4138	unless ++$bug_warning > 10;
		4139	return;
2197	},	4140	}
2198	);
2199		4141
2200	IO::AIO::max_poll_time $TICK * 0.2;	4142	cf::one_tick; # one server iteration
2201		4143
2202	Event->io (	4144	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2203	fd => IO::AIO::poll_fileno,
2204	poll => 'r',
2205	prio => 5,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209		4145
2210	Event->timer (	4146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2211	data => WF_AUTOCANCEL,	4147	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2212	after => 0,	4148	Coro::async_pool {
2213	interval => 10,	4149	$Coro::current->{desc} = "runtime saver";
2214	cb => sub {
2215	(Coro::unblock_sub {
2216	write_runtime	4150	write_runtime_sync
2217	or warn "ERROR: unable to write runtime file: $!";	4151	or error "ERROR: unable to write runtime file: $!";
2218	})->();	4152	};
2219	},	4153	}
2220	);	4154
		4155	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4156	$sig->send;
		4157	}
		4158	$WAIT_FOR_TICK->broadcast;
		4159
		4160	$LOAD = ($NOW - $TICK_START) / $TICK;
		4161	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4162
		4163	if (0) {
		4164	if ($NEXT_TICK) {
		4165	my $jitter = $TICK_START - $NEXT_TICK;
		4166	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4167	debug "jitter $JITTER\n";#d#
		4168	}
		4169	}
		4170	}
		4171
		4172	{
		4173	# configure BDB
		4174
		4175	BDB::min_parallel 16;
		4176	BDB::max_poll_reqs $TICK * 0.1;
		4177	#$AnyEvent::BDB::WATCHER->priority (1);
		4178
		4179	unless ($DB_ENV) {
		4180	$DB_ENV = BDB::db_env_create;
		4181	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4182	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4183	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4184	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4185	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4186
		4187	cf::sync_job {
		4188	eval {
		4189	BDB::db_env_open
		4190	$DB_ENV,
		4191	$BDBDIR,
		4192	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4193	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4194	0666;
		4195
		4196	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4197	};
		4198
		4199	cf::cleanup "db_env_open(db): $@" if $@;
		4200	};
		4201	}
		4202
		4203	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4204	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4205	};
		4206	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4207	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4208	};
		4209	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4210	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4211	};
		4212	}
		4213
		4214	{
		4215	# configure IO::AIO
		4216
		4217	IO::AIO::min_parallel 8;
		4218	IO::AIO::max_poll_time $TICK * 0.1;
		4219	undef $AnyEvent::AIO::WATCHER;
		4220	}
		4221
		4222	our $_log_backtrace;
		4223	our $_log_backtrace_last;
		4224
		4225	sub _log_backtrace {
		4226	my ($msg, @addr) = @_;
		4227
		4228	$msg =~ s/\n$//;
		4229
		4230	if ($_log_backtrace_last eq $msg) {
		4231	LOG llevInfo, "[ABT] $msg\n";
		4232	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4233	# limit the # of concurrent backtraces
		4234	} elsif ($_log_backtrace < 2) {
		4235	$_log_backtrace_last = $msg;
		4236	++$_log_backtrace;
		4237	my $perl_bt = Carp::longmess $msg;
		4238	async {
		4239	$Coro::current->{desc} = "abt $msg";
		4240
		4241	my @bt = fork_call {
		4242	@addr = map { sprintf "%x", $_ } @addr;
		4243	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4244	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4245	or die "addr2line: $!";
		4246
		4247	my @funcs;
		4248	my @res = <$fh>;
		4249	chomp for @res;
		4250	while (@res) {
		4251	my ($func, $line) = splice @res, 0, 2, ();
		4252	push @funcs, "[$func] $line";
		4253	}
		4254
		4255	@funcs
		4256	};
		4257
		4258	LOG llevInfo, "[ABT] $perl_bt\n";
		4259	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4260	LOG llevInfo, "[ABT] $_\n" for @bt;
		4261	--$_log_backtrace;
		4262	};
		4263	} else {
		4264	LOG llevInfo, "[ABT] $msg\n";
		4265	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4266	}
		4267	}
		4268
		4269	# load additional modules
		4270	require "cf/$_.pm" for @EXTRA_MODULES;
		4271	cf::_connect_to_perl_2;
2221		4272
2222	END { cf::emergency_save }	4273	END { cf::emergency_save }
2223		4274
2224	1	4275	1
2225		4276

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