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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.146 by root, Sun Jan 7 23:10:43 2007 UTC vs.
Revision 1.559 by root, Sat Feb 26 12:50:27 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 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 2.32 ();
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 (Coro::PRIO_MAX); # 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
32		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" };
		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;
45	our $NOW;	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);
46		132
47	our %CFG;	133	our %CFG;
48		134
49	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
51		138
52	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	141	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	142
56	our %EXT_CORO; # coroutines bound to extensions	143	# used to convert map paths into valid unix filenames by replacing / by ∕
		144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
57		155
58	binmode STDOUT;	156	binmode STDOUT;
59	binmode STDERR;	157	binmode STDERR;
60		158
61	# read virtual server time, if available	159	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
66	}	164	}
67		165
68	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		167
74	# a special map that is always available	168	mkdir $_
75	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
76	our $EMERGENCY_POSITION;	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
77		189
78	#############################################################################	190	#############################################################################
79		191
80	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
81		193
…		…
88	=item $cf::RUNTIME	200	=item $cf::RUNTIME
89		201
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	202	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	203	every server tick.
92		204
93	=item $cf::LIBDIR	205	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		206	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		207	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		208
95	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	210	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		211	unique-items directory, player file directory, random maps directory and
		212	database environment.
97		213
98	=item $cf::NOW	214	=item $cf::NOW
99		215
100	The time of the last (current) server tick.	216	The time of the last (current) server tick.
101		217
102	=item $cf::TICK	218	=item $cf::TICK
103		219
104	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
105		221
		222	=item $cf::LOADAVG
		223
		224	The current CPU load on the server (alpha-smoothed), as a value between 0
		225	(none) and 1 (overloaded), indicating how much time is spent on processing
		226	objects per tick. Healthy values are < 0.5.
		227
		228	=item $cf::LOAD
		229
		230	The raw value load value from the last tick.
		231
106	=item %cf::CFG	232	=item %cf::CFG
107		233
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	235	from wherever your confdir points to.
110		236
		237	=item cf::wait_for_tick, cf::wait_for_tick_begin
		238
		239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		240	returns directly I<after> the tick processing (and consequently, can only wake one thread
		241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
		259
111	=back	260	=back
112		261
113	=cut	262	=cut
114		263
115	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
116	*CORE::GLOBAL::warn = sub {	265	sub warn (@) { LOG llevWarn , join "", @_ }
		266	sub info (@) { LOG llevInfo , join "", @_ }
		267	sub debug(@) { LOG llevDebug, join "", @_ }
		268	sub trace(@) { LOG llevTrace, join "", @_ }
		269
		270	$Coro::State::WARNHOOK = sub {
117	my $msg = join "", @_;	271	my $msg = join "", @_;
118	utf8::encode $msg;
119		272
120	$msg .= "\n"	273	$msg .= "\n"
121	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
122		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
123	LOG llevError, $msg;	278	LOG llevWarn, $msg;
124	};	279	};
125	}	280
		281	$Coro::State::DIEHOOK = sub {
		282	return unless $^S eq 0; # "eq", not "=="
		283
		284	error Carp::longmess $_[0];
		285
		286	if (in_main) {#d#
		287	error "DIEHOOK called in main context, Coro bug?\n";#d#
		288	return;#d#
		289	}#d#
		290
		291	# kill coroutine otherwise
		292	Coro::terminate
		293	};
126		294
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	299	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		300	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	301	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		302
134	# we bless all objects into (empty) derived classes to force a method lookup	303	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	304	# within the Safe compartment.
136	for my $pkg (qw(	305	for my $pkg (qw(
137	cf::global cf::attachable	306	cf::global cf::attachable
138	cf::object cf::object::player	307	cf::object cf::object::player
139	cf::client cf::player	308	cf::client cf::player
140	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
141	cf::map cf::party cf::region	311	cf::party cf::region
142	)) {	312	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	314	}
146		315
147	$Event::DIED = sub {	316	$EV::DIED = sub {
148	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
149	};	318	};
150		319
151	my %ext_pkg;	320	#############################################################################
152	my @exts;
153	my @hook;
154		321
155	=head2 UTILITY FUNCTIONS	322	=head2 UTILITY FUNCTIONS
156		323
157	=over 4	324	=over 4
158		325
159	=cut	326	=item dumpval $ref
160		327
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	328	=cut
162		329
		330	sub dumpval {
		331	eval {
		332	local $SIG{__DIE__};
		333	my $d;
		334	if (1) {
		335	$d = new Data::Dumper([$_[0]], ["*var"]);
		336	$d->Terse(1);
		337	$d->Indent(2);
		338	$d->Quotekeys(0);
		339	$d->Useqq(1);
		340	#$d->Bless(...);
		341	$d->Seen($_[1]) if @_ > 1;
		342	$d = $d->Dump();
		343	}
		344	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		345	$d
		346	} || "[unable to dump $_[0]: '$@']";
		347	}
		348
163	=item $ref = cf::from_json $json	349	=item $ref = cf::decode_json $json
164		350
165	Converts a JSON string into the corresponding perl data structure.	351	Converts a JSON string into the corresponding perl data structure.
166		352
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	353	=item $json = cf::encode_json $ref
175		354
176	Converts a perl data structure into its JSON representation.	355	Converts a perl data structure into its JSON representation.
177		356
178	=cut	357	=cut
179		358
180	sub to_json($) {	359	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	360
182	JSON::Syck::Dump $_[0]	361	sub encode_json($) { $json_coder->encode ($_[0]) }
		362	sub decode_json($) { $json_coder->decode ($_[0]) }
		363
		364	=item $ref = cf::yaml_load $scalar
		365
		366	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		367
		368	=cut
		369
		370	sub fork_call(&@);
		371
		372	sub yaml_load($) {
		373	fork_call { YAML::XS::Load $_[0] } @_
		374	}
		375
		376	=item cf::post_init { BLOCK }
		377
		378	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		379	but I<before> the server starts ticking again.
		380
		381	The codeblock will have a single boolean argument to indicate whether this
		382	is a reload or not.
		383
		384	=cut
		385
		386	sub post_init(&) {
		387	push @POST_INIT, shift;
		388	}
		389
		390	sub _post_init {
		391	trace "running post_init jobs";
		392
		393	# run them in parallel...
		394
		395	my @join;
		396
		397	while () {
		398	push @join, map &Coro::async ($_, 0), @POST_INIT;
		399	@POST_INIT = ();
		400
		401	@join or last;
		402
		403	(pop @join)->join;
		404	}
183	}	405	}
184		406
185	=item cf::lock_wait $string	407	=item cf::lock_wait $string
186		408
187	Wait until the given lock is available. See cf::lock_acquire.	409	Wait until the given lock is available. See cf::lock_acquire.
188		410
189	=item my $lock = cf::lock_acquire $string	411	=item my $lock = cf::lock_acquire $string
190		412
191	Wait until the given lock is available and then acquires it and returns	413	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	414	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	415	for example when the coroutine gets canceled), the lock is automatically
194	returned.	416	returned.
195		417
		418	Locks are *not* recursive, locking from the same coro twice results in a
		419	deadlocked coro.
		420
196	Lock names should begin with a unique identifier (for example, cf::map::find	421	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	422	uses map_find and cf::map::load uses map_load).
198		423
199	=cut	424	=item $locked = cf::lock_active $string
200		425
201	our %LOCK;	426	Return true if the lock is currently active, i.e. somebody has locked it.
		427
		428	=cut
		429
		430	our $LOCKS = new Coro::SemaphoreSet;
202		431
203	sub lock_wait($) {	432	sub lock_wait($) {
204	my ($key) = @_;	433	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	434	}
212		435
213	sub lock_acquire($) {	436	sub lock_acquire($) {
214	my ($key) = @_;	437	$LOCKS->guard ($_[0])
		438	}
215		439
216	# wait, to be sure we are not locked	440	sub lock_active($) {
217	lock_wait $key;	441	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	442	}
226		443
227	sub freeze_mainloop {	444	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	445	tick_inhibit_inc;
229		446
230	my $guard = Coro::guard { $TICK_WATCHER->start };	447	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	448	}
232	$guard	449
		450	=item cf::periodic $interval, $cb
		451
		452	Like EV::periodic, but randomly selects a starting point so that the actions
		453	get spread over time.
		454
		455	=cut
		456
		457	sub periodic($$) {
		458	my ($interval, $cb) = @_;
		459
		460	my $start = rand List::Util::min 180, $interval;
		461
		462	EV::periodic $start, $interval, 0, $cb
		463	}
		464
		465	=item cf::get_slot $time[, $priority[, $name]]
		466
		467	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		468	This call blocks and returns only when you have at least C<$time> seconds
		469	of cpu time till the next tick. The slot is only valid till the next cede.
		470
		471	The optional C<$name> can be used to identify the job to run. It might be
		472	used for statistical purposes and should identify the same time-class.
		473
		474	Useful for short background jobs.
		475
		476	=cut
		477
		478	our @SLOT_QUEUE;
		479	our $SLOT_QUEUE;
		480	our $SLOT_DECAY = 0.9;
		481
		482	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		483	$SLOT_QUEUE = Coro::async {
		484	$Coro::current->desc ("timeslot manager");
		485
		486	my $signal = new Coro::Signal;
		487	my $busy;
		488
		489	while () {
		490	next_job:
		491
		492	my $avail = cf::till_tick;
		493
		494	for (0 .. $#SLOT_QUEUE) {
		495	if ($SLOT_QUEUE[$_][0] <= $avail) {
		496	$busy = 0;
		497	my $job = splice @SLOT_QUEUE, $_, 1, ();
		498	$job->[2]->send;
		499	Coro::cede;
		500	goto next_job;
		501	} else {
		502	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		503	}
		504	}
		505
		506	if (@SLOT_QUEUE) {
		507	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		508	push @cf::WAIT_FOR_TICK, $signal;
		509	$signal->wait;
		510	} else {
		511	$busy = 0;
		512	Coro::schedule;
		513	}
		514	}
		515	};
		516
		517	sub get_slot($;$$) {
		518	return if tick_inhibit || $Coro::current == $Coro::main;
		519
		520	my ($time, $pri, $name) = @_;
		521
		522	$time = clamp $time, 0.01, $TICK * .6;
		523
		524	my $sig = new Coro::Signal;
		525
		526	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		527	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		528	$SLOT_QUEUE->ready;
		529	$sig->wait;
233	}	530	}
234		531
235	=item cf::async { BLOCK }	532	=item cf::async { BLOCK }
236		533
237	Currently the same as Coro::async_pool, meaning you cannot use	534	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		539
243	BEGIN { *async = \&Coro::async_pool }	540	BEGIN { *async = \&Coro::async_pool }
244		541
245	=item cf::sync_job { BLOCK }	542	=item cf::sync_job { BLOCK }
246		543
247	The design of crossfire+ requires that the main coro ($Coro::main) is	544	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	545	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	546	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		547	acceptable.
250		548
251	If it must be done, put the blocking parts into C<sync_job>. This will run	549	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	550	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	551	server will be frozen during this time, so the block should either finish
254	fast or be very important.	552	fast or be very important.
…		…
256	=cut	554	=cut
257		555
258	sub sync_job(&) {	556	sub sync_job(&) {
259	my ($job) = @_;	557	my ($job) = @_;
260		558
261	if ($Coro::current == $Coro::main) {	559	if (in_main) {
		560	my $time = AE::time;
		561
262	# this is the main coro, too bad, we have to block	562	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	563	# till the operation succeeds, freezing the server :/
264		564
265	# TODO: use suspend/resume instead	565	#LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	566
267	my $freeze_guard = freeze_mainloop;	567	my $freeze_guard = freeze_mainloop;
268		568
269	my $busy = 1;	569	my $busy = 1;
270	my @res;	570	my @res;
271		571
272	(async {	572	(async {
		573	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	574	@res = eval { $job->() };
274	warn $@ if $@;	575	error $@ if $@;
275	undef $busy;	576	undef $busy;
276	})->prio (Coro::PRIO_MAX);	577	})->prio (Coro::PRIO_MAX);
277		578
278	while ($busy) {	579	while ($busy) {
279	Coro::cede or Event::one_event;	580	if (Coro::nready) {
		581	Coro::cede_notself;
		582	} else {
		583	EV::loop EV::LOOP_ONESHOT;
280	}	584	}
		585	}
		586
		587	my $time = AE::time - $time;
		588
		589	$TICK_START += $time; # do not account sync jobs to server load
281		590
282	wantarray ? @res : $res[0]	591	wantarray ? @res : $res[0]
283	} else {	592	} else {
284	# we are in another coroutine, how wonderful, everything just works	593	# we are in another coroutine, how wonderful, everything just works
285		594
…		…
287	}	596	}
288	}	597	}
289		598
290	=item $coro = cf::async_ext { BLOCK }	599	=item $coro = cf::async_ext { BLOCK }
291		600
292	Like async, but this coro is automcatially being canceled when the	601	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	602	extension calling this is being unloaded.
294		603
295	=cut	604	=cut
296		605
297	sub async_ext(&) {	606	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	614	$EXT_CORO{$coro+0} = $coro;
306		615
307	$coro	616	$coro
308	}	617	}
309		618
310	sub write_runtime {	619	=item fork_call { }, @args
311	my $runtime = cf::localdir . "/runtime";
312		620
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	621	Executes the given code block with the given arguments in a seperate
314	or return;	622	process, returning the results. Everything must be serialisable with
		623	Coro::Storable. May, of course, block. Note that the executed sub may
		624	never block itself or use any form of event handling.
315		625
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	626	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		627
320	aio_fsync $fh	628	sub post_fork {
321	and return;	629	reset_signals;
		630	}
322		631
323	close $fh	632	sub fork_call(&@) {
324	or return;	633	my ($cb, @args) = @_;
325		634
326	aio_rename "$runtime~", $runtime	635	# we seemingly have to make a local copy of the whole thing,
327	and return;	636	# otherwise perl prematurely frees the stuff :/
		637	# TODO: investigate and fix (likely this will be rather laborious)
328		638
		639	my @res = Coro::Util::fork_eval {
		640	cf::post_fork;
		641	&$cb
		642	} @args;
		643
		644	wantarray ? @res : $res[-1]
		645	}
		646
		647	sub objinfo {
329	1	648	(
		649	"counter value" => cf::object::object_count,
		650	"objects created" => cf::object::create_count,
		651	"objects destroyed" => cf::object::destroy_count,
		652	"freelist size" => cf::object::free_count,
		653	"allocated objects" => cf::object::objects_size,
		654	"active objects" => cf::object::actives_size,
		655	)
		656	}
		657
		658	=item $coin = coin_from_name $name
		659
		660	=cut
		661
		662	our %coin_alias = (
		663	"silver" => "silvercoin",
		664	"silvercoin" => "silvercoin",
		665	"silvercoins" => "silvercoin",
		666	"gold" => "goldcoin",
		667	"goldcoin" => "goldcoin",
		668	"goldcoins" => "goldcoin",
		669	"platinum" => "platinacoin",
		670	"platinumcoin" => "platinacoin",
		671	"platinumcoins" => "platinacoin",
		672	"platina" => "platinacoin",
		673	"platinacoin" => "platinacoin",
		674	"platinacoins" => "platinacoin",
		675	"royalty" => "royalty",
		676	"royalties" => "royalty",
		677	);
		678
		679	sub coin_from_name($) {
		680	$coin_alias{$_[0]}
		681	? cf::arch::find $coin_alias{$_[0]}
		682	: undef
		683	}
		684
		685	=item $value = cf::db_get $family => $key
		686
		687	Returns a single value from the environment database.
		688
		689	=item cf::db_put $family => $key => $value
		690
		691	Stores the given C<$value> in the family. It can currently store binary
		692	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		693
		694	=item $db = cf::db_table "name"
		695
		696	Create and/or open a new database table. The string must not be "db" and must be unique
		697	within each server.
		698
		699	=cut
		700
		701	sub db_table($) {
		702	cf::error "db_get called from main context"
		703	if $Coro::current == $Coro::main;
		704
		705	my ($name) = @_;
		706	my $db = BDB::db_create $DB_ENV;
		707
		708	eval {
		709	$db->set_flags (BDB::CHKSUM);
		710
		711	utf8::encode $name;
		712	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		713	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		714	cf::cleanup "db_open(db): $!" if $!;
		715	};
		716	cf::cleanup "db_open(db): $@" if $@;
		717
		718	$db
		719	}
		720
		721	our $DB;
		722
		723	sub db_init {
		724	$DB ||= db_table "db";
		725	}
		726
		727	sub db_get($$) {
		728	my $key = "$_[0]/$_[1]";
		729
		730	cf::error "db_get called from main context"
		731	if $Coro::current == $Coro::main;
		732
		733	BDB::db_get $DB, undef, $key, my $data;
		734
		735	$! ? ()
		736	: $data
		737	}
		738
		739	sub db_put($$$) {
		740	BDB::dbreq_pri 4;
		741	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		742	}
		743
		744	=item cf::cache $id => [$paths...], $processversion => $process
		745
		746	Generic caching function that returns the value of the resource $id,
		747	caching and regenerating as required.
		748
		749	This function can block.
		750
		751	=cut
		752
		753	sub cache {
		754	my ($id, $src, $processversion, $process) = @_;
		755
		756	my $meta =
		757	join "\x00",
		758	$processversion,
		759	map {
		760	aio_stat $_
		761	and Carp::croak "$_: $!";
		762
		763	($_, (stat _)[7,9])
		764	} @$src;
		765
		766	my $dbmeta = db_get cache => "$id/meta";
		767	if ($dbmeta ne $meta) {
		768	# changed, we may need to process
		769
		770	my @data;
		771	my $md5;
		772
		773	for (0 .. $#$src) {
		774	0 <= aio_load $src->[$_], $data[$_]
		775	or Carp::croak "$src->[$_]: $!";
		776	}
		777
		778	# if processing is expensive, check
		779	# checksum first
		780	if (1) {
		781	$md5 =
		782	join "\x00",
		783	$processversion,
		784	map {
		785	cf::cede_to_tick;
		786	($src->[$_], Digest::MD5::md5_hex $data[$_])
		787	} 0.. $#$src;
		788
		789
		790	my $dbmd5 = db_get cache => "$id/md5";
		791	if ($dbmd5 eq $md5) {
		792	db_put cache => "$id/meta", $meta;
		793
		794	return db_get cache => "$id/data";
		795	}
		796	}
		797
		798	my $t1 = Time::HiRes::time;
		799	my $data = $process->(\@data);
		800	my $t2 = Time::HiRes::time;
		801
		802	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		803
		804	db_put cache => "$id/data", $data;
		805	db_put cache => "$id/md5" , $md5;
		806	db_put cache => "$id/meta", $meta;
		807
		808	return $data;
		809	}
		810
		811	db_get cache => "$id/data"
		812	}
		813
		814	=item cf::datalog type => key => value, ...
		815
		816	Log a datalog packet of the given type with the given key-value pairs.
		817
		818	=cut
		819
		820	sub datalog($@) {
		821	my ($type, %kv) = @_;
		822	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	823	}
331		824
332	=back	825	=back
333		826
334	=cut	827	=cut
335		828
336	#############################################################################	829	#############################################################################
337		830
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	831	=head2 ATTACHABLE OBJECTS
459		832
460	Many objects in crossfire are so-called attachable objects. That means you can	833	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	834	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	835	to it. All such attachable objects support the following methods.
463		836
464	In the following description, CLASS can be any of C<global>, C<object>	837	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	838	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	839	Deliantra).
467		840
468	=over 4	841	=over 4
469		842
470	=item $attachable->attach ($attachment, key => $value...)	843	=item $attachable->attach ($attachment, key => $value...)
471		844
…		…
515	=item cf::CLASS::attachment $name, ...	888	=item cf::CLASS::attachment $name, ...
516		889
517	Register an attachment by C<$name> through which attachable objects of the	890	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	891	given CLASS can refer to this attachment.
519		892
520	Some classes such as crossfire maps and objects can specify attachments	893	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	894	that are attached at load/instantiate time, thus the need for a name.
522		895
523	These calls expect any number of the following handler/hook descriptions:	896	These calls expect any number of the following handler/hook descriptions:
524		897
525	=over 4	898	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	958	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	959	our @CB_MAP = ();
587		960
588	my %attachment;	961	my %attachment;
589		962
		963	sub cf::attachable::thawer_merge {
		964	# simply override everything except _meta
		965	local $_[0]{_meta};
		966	%{$_[0]} = %{$_[1]};
		967	}
		968
590	sub _attach_cb($$$$) {	969	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	970	my ($registry, $event, $prio, $cb) = @_;
592		971
593	use sort 'stable';	972	use sort 'stable';
594		973
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	1007	$registry = $CB_TYPE[$object_type] ||= [];
629		1008
630	} elsif ($type eq "subtype") {	1009	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	1010	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	1011	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1012	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		1013
635	} elsif ($type eq "package") {	1014	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	1015	my $pkg = shift @arg;
637		1016
638	while (my ($name, $id) = each %cb_id) {	1017	while (my ($name, $id) = each %cb_id) {
…		…
643		1022
644	} elsif (exists $cb_id{$type}) {	1023	} elsif (exists $cb_id{$type}) {
645	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1024	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
646		1025
647	} elsif (ref $type) {	1026	} elsif (ref $type) {
648	warn "attaching objects not supported, ignoring.\n";	1027	error "attaching objects not supported, ignoring.\n";
649		1028
650	} else {	1029	} else {
651	shift @arg;	1030	shift @arg;
652	warn "attach argument '$type' not supported, ignoring.\n";	1031	error "attach argument '$type' not supported, ignoring.\n";
653	}	1032	}
654	}	1033	}
655	}	1034	}
656		1035
657	sub _object_attach {	1036	sub _object_attach {
…		…
667	_attach $registry, $klass, @attach;	1046	_attach $registry, $klass, @attach;
668	}	1047	}
669		1048
670	$obj->{$name} = \%arg;	1049	$obj->{$name} = \%arg;
671	} else {	1050	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	1051	info "object uses attachment '$name' which is not available, postponing.\n";
673	}	1052	}
674		1053
675	$obj->{_attachment}{$name} = undef;	1054	$obj->{_attachment}{$name} = undef;
676	}	1055	}
677		1056
…		…
679	if (ref $_[0]) {	1058	if (ref $_[0]) {
680	_object_attach @_;	1059	_object_attach @_;
681	} else {	1060	} else {
682	_attach shift->_attach_registry, @_;	1061	_attach shift->_attach_registry, @_;
683	}	1062	}
		1063	_recalc_want;
684	};	1064	};
685		1065
686	# all those should be optimised	1066	# all those should be optimised
687	sub cf::attachable::detach {	1067	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	1068	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1071	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1072	reattach ($obj);
693	} else {	1073	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1074	Carp::croak "cannot, currently, detach class attachments";
695	}	1075	}
		1076	_recalc_want;
696	};	1077	};
697		1078
698	sub cf::attachable::attached {	1079	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1080	my ($obj, $name) = @_;
700		1081
…		…
715	";	1096	";
716	die if $@;	1097	die if $@;
717	}	1098	}
718		1099
719	our $override;	1100	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1101	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1102
722	sub override {	1103	sub override {
723	$override = 1;	1104	$override = 1;
724	@invoke_results = ();	1105	@INVOKE_RESULTS = (@_);
725	}	1106	}
726		1107
727	sub do_invoke {	1108	sub do_invoke {
728	my $event = shift;	1109	my $event = shift;
729	my $callbacks = shift;	1110	my $callbacks = shift;
730		1111
731	@invoke_results = ();	1112	@INVOKE_RESULTS = ();
732		1113
733	local $override;	1114	local $override;
734		1115
735	for (@$callbacks) {	1116	for (@$callbacks) {
736	eval { &{$_->[1]} };	1117	eval { &{$_->[1]} };
737		1118
738	if ($@) {	1119	if ($@) {
739	warn "$@";
740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1120	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
741	override;	1121	override;
742	}	1122	}
743		1123
744	return 1 if $override;	1124	return 1 if $override;
745	}	1125	}
746		1126
747	0	1127	0
748	}	1128	}
749		1129
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1131
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1132	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1133
754	Generate an object-specific event with the given arguments.	1134	Generate an object-specific event with the given arguments.
755		1135
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1136	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1137	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1138	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1139
760	=back	1140	=back
761		1141
762	=cut	1142	=cut
763		1143
764	#############################################################################	1144	#############################################################################
765	# object support	1145	# object support
		1146
		1147	sub _object_equal($$);
		1148	sub _object_equal($$) {
		1149	my ($a, $b) = @_;
		1150
		1151	return 0 unless (ref $a) eq (ref $b);
		1152
		1153	if ("HASH" eq ref $a) {
		1154	my @ka = keys %$a;
		1155	my @kb = keys %$b;
		1156
		1157	return 0 if @ka != @kb;
		1158
		1159	for (0 .. $#ka) {
		1160	return 0 unless $ka[$_] eq $kb[$_];
		1161	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1162	}
		1163
		1164	} elsif ("ARRAY" eq ref $a) {
		1165
		1166	return 0 if @$a != @$b;
		1167
		1168	for (0 .. $#$a) {
		1169	return 0 unless _object_equal $a->[$_], $b->[$_];
		1170	}
		1171
		1172	} elsif ($a ne $b) {
		1173	return 0;
		1174	}
		1175
		1176	1
		1177	}
		1178
		1179	our $SLOW_MERGES;#d#
		1180	sub _can_merge {
		1181	my ($ob1, $ob2) = @_;
		1182
		1183	++$SLOW_MERGES;#d#
		1184
		1185	# we do the slow way here
		1186	return _object_equal $ob1, $ob2
		1187	}
766		1188
767	sub reattach {	1189	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1190	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1191	my ($obj) = @_;
		1192
		1193	# no longer needed after getting rid of delete_package?
		1194	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1195
771	my $registry = $obj->registry;	1196	my $registry = $obj->registry;
772		1197
773	@$registry = ();	1198	@$registry = ();
774		1199
…		…
779	for (@$attach) {	1204	for (@$attach) {
780	my ($klass, @attach) = @$_;	1205	my ($klass, @attach) = @$_;
781	_attach $registry, $klass, @attach;	1206	_attach $registry, $klass, @attach;
782	}	1207	}
783	} else {	1208	} else {
784	warn "object uses attachment '$name' that is not available, postponing.\n";	1209	info "object uses attachment '$name' that is not available, postponing.\n";
785	}	1210	}
786	}	1211	}
787	}	1212	}
788		1213
789	cf::attachable->attach (	1214	cf::attachable->attach (
790	prio => -1000000,	1215	prio => -1000000,
791	on_instantiate => sub {	1216	on_instantiate => sub {
792	my ($obj, $data) = @_;	1217	my ($obj, $data) = @_;
793		1218
794	$data = from_json $data;	1219	$data = decode_json $data;
795		1220
796	for (@$data) {	1221	for (@$data) {
797	my ($name, $args) = @$_;	1222	my ($name, $args) = @$_;
798		1223
799	$obj->attach ($name, %{$args || {} });	1224	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1240	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1241	my ($filename, $rdata, $objs) = @_;
817		1242
818	sync_job {	1243	sync_job {
819	if (length $$rdata) {	1244	if (length $$rdata) {
		1245	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1246	trace sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1247	$decname, length $$rdata, scalar @$objs
		1248	if $VERBOSE_IO;
822		1249
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1250	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1251	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1252	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1253	if ($cf::USE_FSYNC) {
		1254	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;
826	aio_fsync $fh;	1255	aio_fsync $fh;
		1256	}
827	close $fh;	1257	aio_close $fh;
828		1258
829	if (@$objs) {	1259	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1260	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1261	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1262	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1263	aio_write $fh, 0, (length $data), $data, 0;
		1264	if ($cf::USE_FSYNC) {
		1265	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;
834	aio_fsync $fh;	1266	aio_fsync $fh;
		1267	}
835	close $fh;	1268	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1269	aio_rename "$filename.pst~", "$filename.pst";
837	}	1270	}
838	} else {	1271	} else {
839	aio_unlink "$filename.pst";	1272	aio_unlink "$filename.pst";
840	}	1273	}
841		1274
842	aio_rename "$filename~", $filename;	1275	aio_rename "$filename~", $filename;
		1276
		1277	$filename =~ s%/[^/]+$%%;
		1278	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1279	} else {
844	warn "FATAL: $filename~: $!\n";	1280	error "unable to save objects: $filename~: $!\n";
845	}	1281	}
846	} else {	1282	} else {
847	aio_unlink $filename;	1283	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1284	aio_unlink "$filename.pst";
849	}	1285	}
850	}	1286	};
851	}	1287	}
852		1288
853	sub object_freezer_as_string {	1289	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1290	my ($rdata, $objs) = @_;
855		1291
…		…
867	or return;	1303	or return;
868		1304
869	unless (aio_stat "$filename.pst") {	1305	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1306	(aio_load "$filename.pst", $av) >= 0
871	or return;	1307	or return;
		1308
872	$av = eval { (Storable::thaw $av)->{objs} };	1309	my $st = eval { Coro::Storable::thaw $av };
		1310	$av = $st->{objs};
873	}	1311	}
874		1312
		1313	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1314	trace sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1315	$decname, length $data, scalar @{$av || []}
		1316	if $VERBOSE_IO;
		1317
877	return ($data, $av);	1318	($data, $av)
878	}	1319	}
		1320
		1321	=head2 COMMAND CALLBACKS
		1322
		1323	=over 4
		1324
		1325	=cut
879		1326
880	#############################################################################	1327	#############################################################################
881	# command handling &c	1328	# command handling &c
882		1329
883	=item cf::register_command $name => \&callback($ob,$args);	1330	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1343	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1344	}
898		1345
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1346	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1347
901	Register a callbackf ro execution when the client sends an extcmd packet.	1348	Register a callback for execution when the client sends an (synchronous)
		1349	extcmd packet. Ext commands will be processed in the order they are
		1350	received by the server, like other user commands. The first argument is
		1351	the logged-in player. Ext commands can only be processed after a player
		1352	has logged in successfully.
902		1353
903	If the callback returns something, it is sent back as if reply was being	1354	If the callback returns something, it is sent back as if reply was being
904	called.	1355	called.
905		1356
		1357	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1358
		1359	Register a callback for execution when the client sends an (asynchronous)
		1360	exticmd packet. Exti commands are processed by the server as soon as they
		1361	are received, i.e. out of order w.r.t. other commands. The first argument
		1362	is a client socket. Exti commands can be received anytime, even before
		1363	log-in.
		1364
		1365	If the callback returns something, it is sent back as if reply was being
		1366	called.
		1367
906	=cut	1368	=cut
907		1369
908	sub register_extcmd {	1370	sub register_extcmd {
909	my ($name, $cb) = @_;	1371	my ($name, $cb) = @_;
910		1372
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1373	$EXTCMD{$name} = $cb;
915	}	1374	}
		1375
		1376	sub register_exticmd {
		1377	my ($name, $cb) = @_;
		1378
		1379	$EXTICMD{$name} = $cb;
		1380	}
		1381
		1382	use File::Glob ();
916		1383
917	cf::player->attach (	1384	cf::player->attach (
918	on_command => sub {	1385	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1386	my ($pl, $name, $params) = @_;
920		1387
921	my $cb = $COMMAND{$name}	1388	my $cb = $COMMAND{$name}
922	or return;	1389	or return;
923		1390
…		…
928	cf::override;	1395	cf::override;
929	},	1396	},
930	on_extcmd => sub {	1397	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1398	my ($pl, $buf) = @_;
932		1399
933	my $msg = eval { from_json $buf };	1400	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1401
935	if (ref $msg) {	1402	if (ref $msg) {
		1403	my ($type, $reply, @payload) =
		1404	"ARRAY" eq ref $msg
		1405	? @$msg
		1406	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1407
		1408	my @reply;
		1409
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1410	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1411	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1412	}
		1413
		1414	$pl->ext_reply ($reply, @reply)
		1415	if $reply;
		1416
941	} else {	1417	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1418	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1419	}
944		1420
945	cf::override;	1421	cf::override;
946	},	1422	},
947	);	1423	);
948		1424
949	sub register {	1425	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1426	sub cache_extensions {
956	my ($path) = @_;	1427	my $grp = IO::AIO::aio_group;
957		1428
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1429	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1430	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1431	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1432	}
1008	}	1433	};
1009		1434
1010	# remove extcmds	1435	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1436	}
1024		1437
1025	sub load_extensions {	1438	sub load_extensions {
		1439	info "loading extensions...";
		1440
		1441	cf::sync_job {
		1442	my %todo;
		1443
1026	for my $ext (<$LIBDIR/*.ext>) {	1444	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1445	next unless -r $path;
1028	eval {	1446
1029	load_extension $ext;	1447	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1448	my $base = $1;
		1449	my $pkg = $1;
		1450	$pkg =~ s/[^[:word:]]/_/g;
		1451	$pkg = "ext::$pkg";
		1452
		1453	open my $fh, "<:utf8", $path
		1454	or die "$path: $!";
		1455
		1456	my $source = do { local $/; <$fh> };
		1457
		1458	my %ext = (
		1459	path => $path,
		1460	base => $base,
		1461	pkg => $pkg,
		1462	);
		1463
		1464	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1465	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1466
		1467	$ext{source} =
		1468	"package $pkg; use common::sense;\n"
		1469	. "#line 1 \"$path\"\n{\n"
		1470	. $source
		1471	. "\n};\n1";
		1472
		1473	$todo{$base} = \%ext;
		1474	}
		1475
		1476	my $pass = 0;
		1477	my %done;
		1478	while (%todo) {
		1479	my $progress;
		1480
		1481	++$pass;
		1482
		1483	ext:
		1484	while (my ($k, $v) = each %todo) {
		1485	for (split /,\s*/, $v->{meta}{depends}) {
		1486	next ext
		1487	unless exists $done{$_};
		1488	}
		1489
		1490	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1491
		1492	my $active = eval $v->{source};
		1493
		1494	if (length $@) {
		1495	error "$v->{path}: $@\n";
		1496
		1497	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1498	if exists $v->{meta}{mandatory};
		1499
		1500	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1501	delete $todo{$k};
		1502	} else {
		1503	$done{$k} = delete $todo{$k};
		1504	push @EXTS, $v->{pkg};
		1505	$progress = 1;
		1506
		1507	info "$v->{base}: extension inactive.\n"
		1508	unless $active;
		1509	}
1030	1	1510	}
1031	} or warn "$ext not loaded: $@";	1511
		1512	unless ($progress) {
		1513	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1514
		1515	while (my ($k, $v) = each %todo) {
		1516	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1517	if exists $v->{meta}{mandatory};
		1518	}
		1519	}
		1520	}
1032	}	1521	};
1033	}	1522	}
1034		1523
1035	#############################################################################	1524	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1525
1038	*cf::mapsupport::on_clean = sub {	1526	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1527
1073	=head2 CORE EXTENSIONS	1528	=head2 CORE EXTENSIONS
1074		1529
1075	Functions and methods that extend core crossfire objects.	1530	Functions and methods that extend core deliantra objects.
1076		1531
1077	=cut	1532	=cut
1078		1533
1079	package cf::player;	1534	package cf::player;
1080		1535
		1536	use Coro::AIO;
		1537
1081	=head3 cf::player	1538	=head3 cf::player
1082		1539
1083	=over 4	1540	=over 4
1084		1541
		1542	=item cf::player::num_playing
		1543
		1544	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1545
		1546	=cut
		1547
		1548	sub num_playing {
		1549	scalar grep
		1550	$_->ob->map
		1551	&& !$_->hidden
		1552	&& !$_->ob->flag (cf::FLAG_WIZ),
		1553	cf::player::list
		1554	}
		1555
1085	=item cf::player::find $login	1556	=item cf::player::find $login
1086		1557
1087	Returns the given player object, loading it if necessary (might block).	1558	Returns the given player object, loading it if necessary (might block).
1088		1559
1089	=cut	1560	=cut
1090		1561
1091	sub playerdir($) {	1562	sub playerdir($) {
1092	cf::localdir	1563	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1564	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1565	}
1098		1566
1099	sub path($) {	1567	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1568	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1569
1102	(playerdir $login) . "/$login.pl"	1570	(playerdir $login) . "/playerdata"
1103	}	1571	}
1104		1572
1105	sub find_active($) {	1573	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1574	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1575	and $cf::PLAYER{$_[0]}->active
…		…
1110		1578
1111	sub exists($) {	1579	sub exists($) {
1112	my ($login) = @_;	1580	my ($login) = @_;
1113		1581
1114	$cf::PLAYER{$login}	1582	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1583	or !aio_stat path $login
1116	}	1584	}
1117		1585
1118	sub find($) {	1586	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1587	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1588	my $login = $_[0];
1121		1589
1122	my $guard = cf::lock_acquire "user_find:$login";	1590	my $guard = cf::lock_acquire "user_find:$login";
1123		1591
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1592	$cf::PLAYER{$_[0]} || do {
		1593	# rename old playerfiles to new ones
		1594	#TODO: remove when no longer required
		1595	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1596	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1597	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1598	aio_unlink +(playerdir $login) . "/$login.pl";
		1599
		1600	my $f = new_from_file cf::object::thawer path $login
		1601	or return;
		1602
		1603	my $pl = cf::player::load_pl $f
		1604	or return;
		1605
		1606	local $cf::PLAYER_LOADING{$login} = $pl;
		1607	$f->resolve_delayed_derefs;
		1608	$cf::PLAYER{$login} = $pl
		1609	}
1125	};	1610	}
1126	}	1611	}
		1612
		1613	cf::player->attach (
		1614	on_load => sub {
		1615	my ($pl, $path) = @_;
		1616
		1617	# restore slots saved in save, below
		1618	my $slots = delete $pl->{_slots};
		1619
		1620	$pl->ob->current_weapon ($slots->[0]);
		1621	$pl->combat_ob ($slots->[1]);
		1622	$pl->ranged_ob ($slots->[2]);
		1623	},
		1624	);
1127		1625
1128	sub save($) {	1626	sub save($) {
1129	my ($pl) = @_;	1627	my ($pl) = @_;
1130		1628
1131	return if $pl->{deny_save};	1629	return if $pl->{deny_save};
…		…
1133	my $path = path $pl;	1631	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1632	my $guard = cf::lock_acquire "user_save:$path";
1135		1633
1136	return if $pl->{deny_save};	1634	return if $pl->{deny_save};
1137		1635
1138	IO::AIO::aio_mkdir playerdir $pl, 0770;	1636	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1637	$pl->{last_save} = $cf::RUNTIME;
1140		1638
1141	Coro::cede;	1639	cf::get_slot 0.01;
		1640
		1641	# save slots, to be restored later
		1642	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1643
1142	$pl->save_pl ($path);	1644	$pl->save_pl ($path);
1143	Coro::cede;	1645	cf::cede_to_tick;
1144	}	1646	}
1145		1647
1146	sub new($) {	1648	sub new($) {
1147	my ($login) = @_;	1649	my ($login) = @_;
1148		1650
…		…
1154	$cf::PLAYER{$login} = $self;	1656	$cf::PLAYER{$login} = $self;
1155		1657
1156	$self	1658	$self
1157	}	1659	}
1158		1660
		1661	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1662
		1663	=cut
		1664
		1665	sub send_msg {
		1666	my $ns = shift->ns
		1667	or return;
		1668	$ns->send_msg (@_);
		1669	}
		1670
		1671	=item $pl->quit_character
		1672
		1673	Nukes the player without looking back. If logged in, the connection will
		1674	be destroyed. May block for a long time.
		1675
		1676	=cut
		1677
1159	sub quit_character {	1678	sub quit_character {
1160	my ($pl) = @_;	1679	my ($pl) = @_;
1161		1680
		1681	my $name = $pl->ob->name;
		1682
1162	$pl->{deny_save} = 1;	1683	$pl->{deny_save} = 1;
1163	$pl->password ("*"); # this should lock out the player until we nuked the dir	1684	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1164		1685
1165	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1686	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1166	$pl->deactivate;	1687	$pl->deactivate;
		1688
		1689	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1167	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1690	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1691	ext::highscore::check ($pl->ob);
		1692
1168	$pl->ns->destroy if $pl->ns;	1693	$pl->ns->destroy if $pl->ns;
1169		1694
1170	my $path = playerdir $pl;	1695	my $path = playerdir $pl;
1171	my $temp = "$path~$cf::RUNTIME~deleting~";	1696	my $temp = "$path~$cf::RUNTIME~deleting~";
1172	IO::AIO::aio_rename $path, $temp, sub {	1697	aio_rename $path, $temp;
1173	delete $cf::PLAYER{$pl->ob->name};	1698	delete $cf::PLAYER{$pl->ob->name};
1174	$pl->destroy;	1699	$pl->destroy;
1175		1700
		1701	my $prefix = qr<^~\Q$name\E/>;
		1702
		1703	# nuke player maps
		1704	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1705
1176	IO::AIO::aio_rmtree $temp;	1706	IO::AIO::aio_rmtree $temp;
		1707	}
		1708
		1709	=item $pl->kick
		1710
		1711	Kicks a player out of the game. This destroys the connection.
		1712
		1713	=cut
		1714
		1715	sub kick {
		1716	my ($pl, $kicker) = @_;
		1717
		1718	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1719	$pl->killer ("kicked");
		1720	$pl->ns->destroy;
		1721	}
		1722
		1723	=item cf::player::list_logins
		1724
		1725	Returns am arrayref of all valid playernames in the system, can take a
		1726	while and may block, so not sync_job-capable, ever.
		1727
		1728	=cut
		1729
		1730	sub list_logins {
		1731	my $dirs = aio_readdir $PLAYERDIR
		1732	or return [];
		1733
		1734	my @logins;
		1735
		1736	for my $login (@$dirs) {
		1737	my $path = path $login;
		1738
		1739	# a .pst is a dead give-away for a valid player
		1740	# if no pst file found, open and chekc for blocked users
		1741	if (aio_stat "$path.pst") {
		1742	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1743	aio_read $fh, 0, 512, my $buf, 0 or next;
		1744	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1745	}
		1746
		1747	utf8::decode $login;
		1748	push @logins, $login;
1177	};	1749	}
1178	}
1179		1750
		1751	\@logins
		1752	}
		1753
		1754	=item $player->maps
		1755
		1756	=item cf::player::maps $login
		1757
		1758	Returns an arrayref of map paths that are private for this
		1759	player. May block.
		1760
		1761	=cut
		1762
		1763	sub maps($) {
		1764	my ($pl) = @_;
		1765
		1766	$pl = ref $pl ? $pl->ob->name : $pl;
		1767
		1768	my $files = aio_readdir playerdir $pl
		1769	or return;
		1770
		1771	my @paths;
		1772
		1773	for (@$files) {
		1774	utf8::decode $_;
		1775	next if /\.(?:pl|pst)$/;
		1776	next unless /^$PATH_SEP/o;
		1777
		1778	push @paths, cf::map::normalise "~$pl/$_";
		1779	}
		1780
		1781	\@paths
		1782	}
		1783
		1784	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1785
		1786	Expand deliantra pod fragments into protocol xml.
		1787
1180	=item $player->ext_reply ($msgid, $msgtype, %msg)	1788	=item $player->ext_reply ($msgid, @msg)
1181		1789
1182	Sends an ext reply to the player.	1790	Sends an ext reply to the player.
1183		1791
1184	=cut	1792	=cut
1185		1793
1186	sub ext_reply($$$%) {	1794	sub ext_reply($$@) {
1187	my ($self, $id, %msg) = @_;	1795	my ($self, $id, @msg) = @_;
1188		1796
1189	$msg{msgid} = $id;	1797	$self->ns->ext_reply ($id, @msg)
1190
1191	$self->send ("ext " . cf::to_json \%msg);
1192	}	1798	}
1193		1799
1194	package cf;	1800	=item $player->ext_msg ($type, @msg)
		1801
		1802	Sends an ext event to the client.
		1803
		1804	=cut
		1805
		1806	sub ext_msg($$@) {
		1807	my ($self, $type, @msg) = @_;
		1808
		1809	$self->ns->ext_msg ($type, @msg);
		1810	}
		1811
		1812	=head3 cf::region
		1813
		1814	=over 4
		1815
		1816	=cut
		1817
		1818	package cf::region;
		1819
		1820	=item cf::region::find_by_path $path
		1821
		1822	Tries to decuce the likely region for a map knowing only its path.
		1823
		1824	=cut
		1825
		1826	sub find_by_path($) {
		1827	my ($path) = @_;
		1828
		1829	$path =~ s/^~[^\/]*//; # skip ~login
		1830
		1831	my ($match, $specificity);
		1832
		1833	for my $region (list) {
		1834	if ($region->{match} && $path =~ $region->{match}) {
		1835	($match, $specificity) = ($region, $region->specificity)
		1836	if $region->specificity > $specificity;
		1837	}
		1838	}
		1839
		1840	$match
		1841	}
1195		1842
1196	=back	1843	=back
1197
1198		1844
1199	=head3 cf::map	1845	=head3 cf::map
1200		1846
1201	=over 4	1847	=over 4
1202		1848
…		…
1205	package cf::map;	1851	package cf::map;
1206		1852
1207	use Fcntl;	1853	use Fcntl;
1208	use Coro::AIO;	1854	use Coro::AIO;
1209		1855
		1856	use overload
		1857	'""' => \&as_string,
		1858	fallback => 1;
		1859
1210	our $MAX_RESET = 3600;	1860	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1861	our $DEFAULT_RESET = 3000;
1212		1862
1213	sub generate_random_map {	1863	sub generate_random_map {
		1864	my ($self, $rmp) = @_;
		1865
		1866	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1867
		1868	$self->_create_random_map ($rmp);
		1869	}
		1870
		1871	=item cf::map->register ($regex, $prio)
		1872
		1873	Register a handler for the map path matching the given regex at the
		1874	givne priority (higher is better, built-in handlers have priority 0, the
		1875	default).
		1876
		1877	=cut
		1878
		1879	sub register {
		1880	my (undef, $regex, $prio) = @_;
		1881	my $pkg = caller;
		1882
		1883	push @{"$pkg\::ISA"}, __PACKAGE__;
		1884
		1885	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1886	}
		1887
		1888	# also paths starting with '/'
		1889	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1890
		1891	sub thawer_merge {
		1892	my ($self, $merge) = @_;
		1893
		1894	# we have to keep some variables in memory intact
		1895	local $self->{path};
		1896	local $self->{load_path};
		1897
		1898	$self->SUPER::thawer_merge ($merge);
		1899	}
		1900
		1901	sub normalise {
1214	my ($path, $rmp) = @_;	1902	my ($path, $base) = @_;
1215		1903
1216	# mit "rum" bekleckern, nicht	1904	$path = "$path"; # make sure it's a string
1217	cf::map::_create_random_map	1905
		1906	$path =~ s/\.map$//;
		1907
		1908	# map plan:
		1909	#
		1910	# /! non-realised random map exit (special hack!)
		1911	# {... are special paths that are not being touched
		1912	# ?xxx/... are special absolute paths
		1913	# ?random/... random maps
		1914	# /... normal maps
		1915	# ~user/... per-player map of a specific user
		1916
		1917	$path =~ s/$PATH_SEP/\//go;
		1918
		1919	# treat it as relative path if it starts with
		1920	# something that looks reasonable
		1921	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1922	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1923
		1924	$base =~ s{[^/]+/?$}{};
		1925	$path = "$base/$path";
		1926	}
		1927
		1928	for ($path) {
		1929	redo if s{/\.?/}{/};
		1930	redo if s{/[^/]+/\.\./}{/};
		1931	}
		1932
1218	$path,	1933	$path
1219	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1220	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1221	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1222	$rmp->{exit_on_final_map},
1223	$rmp->{xsize}, $rmp->{ysize},
1224	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1225	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1226	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1227	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1228	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1229	(cf::region::find $rmp->{region})
1230	}	1934	}
1231		1935
1232	# and all this just because we cannot iterate over	1936	sub new_from_path {
1233	# all maps in C++...	1937	my (undef, $path, $base) = @_;
1234	sub change_all_map_light {	1938
		1939	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1940
		1941	$path = normalise $path, $base;
		1942
		1943	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1944	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1945	my $self = bless cf::map::new, $pkg;
		1946	$self->{path} = $path; $self->path ($path);
		1947	$self->init; # pass $1 etc.
		1948	return $self;
		1949	}
		1950	}
		1951
		1952	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1953	()
		1954	}
		1955
		1956	sub init {
1235	my ($change) = @_;	1957	my ($self) = @_;
1236		1958
1237	$_->change_map_light ($change)	1959	$self
1238	for grep $_->outdoor, values %cf::MAP;
1239	}	1960	}
1240		1961
		1962	sub as_string {
		1963	my ($self) = @_;
		1964
		1965	"$self->{path}"
		1966	}
		1967
		1968	# the displayed name, this is a one way mapping
		1969	sub visible_name {
		1970	&as_string
		1971	}
		1972
		1973	# the original (read-only) location
		1974	sub load_path {
		1975	my ($self) = @_;
		1976
		1977	"$MAPDIR/$self->{path}.map"
		1978	}
		1979
		1980	# the temporary/swap location
		1981	sub save_path {
		1982	my ($self) = @_;
		1983
		1984	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1985	"$TMPDIR/$path.map"
		1986	}
		1987
		1988	# the unique path, undef == no special unique path
		1989	sub uniq_path {
		1990	my ($self) = @_;
		1991
		1992	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1993	"$UNIQUEDIR/$path"
		1994	}
		1995
		1996	sub decay_objects {
		1997	my ($self) = @_;
		1998
		1999	return if $self->{deny_reset};
		2000
		2001	$self->do_decay_objects;
		2002	}
		2003
		2004	sub unlink_save {
		2005	my ($self) = @_;
		2006
		2007	utf8::encode (my $save = $self->save_path);
		2008	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2009	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2010	}
		2011
1241	sub try_load_header($) {	2012	sub load_header_from($) {
1242	my ($path) = @_;	2013	my ($self, $path) = @_;
1243		2014
1244	utf8::encode $path;	2015	utf8::encode $path;
1245	aio_open $path, O_RDONLY, 0	2016	my $f = new_from_file cf::object::thawer $path
1246	or return;	2017	or return;
1247		2018
1248	my $map = cf::map::new	2019	$self->_load_header ($f)
1249	or return;	2020	or return;
1250		2021
1251	# for better error messages only, will be overwritten	2022	local $MAP_LOADING{$self->{path}} = $self;
1252	$map->path ($path);	2023	$f->resolve_delayed_derefs;
1253		2024
1254	$map->load_header ($path)	2025	$self->{load_path} = $path;
		2026
		2027	1
		2028	}
		2029
		2030	sub load_header_orig {
		2031	my ($self) = @_;
		2032
		2033	$self->load_header_from ($self->load_path)
		2034	}
		2035
		2036	sub load_header_temp {
		2037	my ($self) = @_;
		2038
		2039	$self->load_header_from ($self->save_path)
		2040	}
		2041
		2042	sub prepare_temp {
		2043	my ($self) = @_;
		2044
		2045	$self->last_access ((delete $self->{last_access})
		2046	|| $cf::RUNTIME); #d#
		2047	# safety
		2048	$self->{instantiate_time} = $cf::RUNTIME
		2049	if $self->{instantiate_time} > $cf::RUNTIME;
		2050	}
		2051
		2052	sub prepare_orig {
		2053	my ($self) = @_;
		2054
		2055	$self->{load_original} = 1;
		2056	$self->{instantiate_time} = $cf::RUNTIME;
		2057	$self->last_access ($cf::RUNTIME);
		2058	$self->instantiate;
		2059	}
		2060
		2061	sub load_header {
		2062	my ($self) = @_;
		2063
		2064	if ($self->load_header_temp) {
		2065	$self->prepare_temp;
		2066	} else {
		2067	$self->load_header_orig
1255	or return;	2068	or return;
		2069	$self->prepare_orig;
		2070	}
1256		2071
1257	$map->{load_path} = $path;	2072	$self->{deny_reset} = 1
		2073	if $self->no_reset;
1258		2074
1259	$map	2075	$self->default_region (cf::region::find_by_path $self->{path})
		2076	unless $self->default_region;
		2077
		2078	1
1260	}	2079	}
1261		2080
1262	sub find;	2081	sub find;
1263	sub find {	2082	sub find {
1264	my ($path, $origin) = @_;	2083	my ($path, $origin) = @_;
1265		2084
1266	#warn "find<$path,$origin>\n";#d#	2085	cf::cede_to_tick;
1267		2086
1268	$path = new cf::path $path, $origin && $origin->path;	2087	$path = normalise $path, $origin && $origin->path;
1269	my $key = $path->as_string;
1270		2088
1271	cf::lock_wait "map_find:$key";	2089	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1272
1273	$cf::MAP{$key} || do {
1274	my $guard = cf::lock_acquire "map_find:$key";	2090	my $guard2 = cf::lock_acquire "map_find:$path";
1275		2091
1276	# do it the slow way	2092	$cf::MAP{$path} || do {
1277	my $map = try_load_header $path->save_path;	2093	my $map = new_from_path cf::map $path
1278
1279	Coro::cede;
1280
1281	if ($map) {
1282	$map->last_access ((delete $map->{last_access})
1283	|| $cf::RUNTIME); #d#
1284	# safety
1285	$map->{instantiate_time} = $cf::RUNTIME
1286	if $map->{instantiate_time} > $cf::RUNTIME;
1287	} else {
1288	if (my $rmp = $path->random_map_params) {
1289	$map = generate_random_map $key, $rmp;
1290	} else {
1291	$map = try_load_header $path->load_path;
1292	}
1293
1294	$map or return;	2094	or return;
1295		2095
1296	$map->{load_original} = 1;
1297	$map->{instantiate_time} = $cf::RUNTIME;
1298	$map->last_access ($cf::RUNTIME);
1299	$map->instantiate;
1300
1301	# per-player maps become, after loading, normal maps
1302	$map->per_player (0) if $path->{user_rel};
1303	}
1304
1305	$map->path ($key);
1306	$map->{path} = $path;
1307	$map->{last_save} = $cf::RUNTIME;	2096	$map->{last_save} = $cf::RUNTIME;
1308		2097
1309	Coro::cede;	2098	$map->load_header
		2099	or return;
1310		2100
1311	if ($map->should_reset) {	2101	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2102	# doing this can freeze the server in a sync job, obviously
		2103	#$cf::WAIT_FOR_TICK->wait;
		2104	undef $guard2;
		2105	undef $guard1;
1312	$map->reset;	2106	$map->reset;
1313	undef $guard;
1314	$map = find $path	2107	return find $path;
1315	or return;
1316	}	2108	}
1317		2109
1318	$cf::MAP{$key} = $map	2110	$cf::MAP{$path} = $map
1319	}	2111	}
1320	}	2112	}
		2113
		2114	sub pre_load { }
		2115	#sub post_load { } # XS
1321		2116
1322	sub load {	2117	sub load {
1323	my ($self) = @_;	2118	my ($self) = @_;
1324		2119
		2120	local $self->{deny_reset} = 1; # loading can take a long time
		2121
1325	my $path = $self->{path};	2122	my $path = $self->{path};
		2123
		2124	{
1326	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2125	my $guard = cf::lock_acquire "map_data:$path";
1327		2126
		2127	return unless $self->valid;
1328	return if $self->in_memory != cf::MAP_SWAPPED;	2128	return unless $self->in_memory == cf::MAP_SWAPPED;
1329		2129
1330	$self->in_memory (cf::MAP_LOADING);	2130	$self->in_memory (cf::MAP_LOADING);
1331		2131
1332	$self->alloc;	2132	$self->alloc;
1333	$self->load_objects ($self->{load_path}, 1)	2133
		2134	$self->pre_load;
		2135	cf::cede_to_tick;
		2136
		2137	my $f = new_from_file cf::object::thawer $self->{load_path};
		2138	$f->skip_block;
		2139	$self->_load_objects ($f)
1334	or return;	2140	or return;
1335		2141
1336	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2142	$self->post_load_original
1337	if delete $self->{load_original};	2143	if delete $self->{load_original};
1338		2144
1339	if (my $uniq = $path->uniq_path) {	2145	if (my $uniq = $self->uniq_path) {
1340	utf8::encode $uniq;	2146	utf8::encode $uniq;
1341	if (aio_open $uniq, O_RDONLY, 0) {	2147	unless (aio_stat $uniq) {
		2148	if (my $f = new_from_file cf::object::thawer $uniq) {
1342	$self->clear_unique_items;	2149	$self->clear_unique_items;
1343	$self->load_objects ($uniq, 0);	2150	$self->_load_objects ($f);
		2151	$f->resolve_delayed_derefs;
		2152	}
1344	}	2153	}
1345	}	2154	}
1346		2155
1347	Coro::cede;	2156	$f->resolve_delayed_derefs;
1348		2157
		2158	cf::cede_to_tick;
1349	# now do the right thing for maps	2159	# now do the right thing for maps
1350	$self->link_multipart_objects;	2160	$self->link_multipart_objects;
1351
1352	if ($self->{path}->is_style_map) {
1353	$self->{deny_save} = 1;
1354	$self->{deny_reset} = 1;
1355	} else {
1356	$self->fix_auto_apply;
1357	$self->decay_objects;
1358	$self->update_buttons;
1359	$self->set_darkness_map;
1360	$self->difficulty ($self->estimate_difficulty)	2161	$self->difficulty ($self->estimate_difficulty)
1361	unless $self->difficulty;	2162	unless $self->difficulty;
		2163	cf::cede_to_tick;
		2164
		2165	unless ($self->{deny_activate}) {
		2166	$self->decay_objects;
		2167	$self->fix_auto_apply;
		2168	$self->update_buttons;
		2169	cf::cede_to_tick;
1362	$self->activate;	2170	$self->activate;
1363	}	2171	}
1364		2172
1365	Coro::cede;	2173	$self->{last_save} = $cf::RUNTIME;
		2174	$self->last_access ($cf::RUNTIME);
1366		2175
1367	$self->in_memory (cf::MAP_IN_MEMORY);	2176	$self->in_memory (cf::MAP_ACTIVE);
		2177	}
		2178
		2179	$self->post_load;
		2180
		2181	1
		2182	}
		2183
		2184	# customize the map for a given player, i.e.
		2185	# return the _real_ map. used by e.g. per-player
		2186	# maps to change the path to ~playername/mappath
		2187	sub customise_for {
		2188	my ($self, $ob) = @_;
		2189
		2190	return find "~" . $ob->name . "/" . $self->{path}
		2191	if $self->per_player;
		2192
		2193	# return find "?party/" . $ob->name . "/" . $self->{path}
		2194	# if $self->per_party;
		2195
		2196	$self
		2197	}
		2198
		2199	# find and load all maps in the 3x3 area around a map
		2200	sub load_neighbours {
		2201	my ($map) = @_;
		2202
		2203	my @neigh; # diagonal neighbours
		2204
		2205	for (0 .. 3) {
		2206	my $neigh = $map->tile_path ($_)
		2207	or next;
		2208	$neigh = find $neigh, $map
		2209	or next;
		2210	$neigh->load;
		2211
		2212	# now find the diagonal neighbours
		2213	push @neigh,
		2214	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2215	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2216	}
		2217
		2218	for (grep defined $_->[0], @neigh) {
		2219	my ($path, $origin) = @$_;
		2220	my $neigh = find $path, $origin
		2221	or next;
		2222	$neigh->load;
		2223	}
1368	}	2224	}
1369		2225
1370	sub find_sync {	2226	sub find_sync {
1371	my ($path, $origin) = @_;	2227	my ($path, $origin) = @_;
1372		2228
1373	cf::sync_job { cf::map::find $path, $origin }	2229	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2230	if $Coro::current == $Coro::main;
		2231
		2232	find $path, $origin
1374	}	2233	}
1375		2234
1376	sub do_load_sync {	2235	sub do_load_sync {
1377	my ($map) = @_;	2236	my ($map) = @_;
1378		2237
1379	cf::sync_job { $map->load };	2238	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2239	if $Coro::current == $Coro::main;
		2240
		2241	$map->load;
		2242	}
		2243
		2244	our %MAP_PREFETCH;
		2245	our $MAP_PREFETCHER = undef;
		2246
		2247	sub find_async {
		2248	my ($path, $origin, $load) = @_;
		2249
		2250	$path = normalise $path, $origin && $origin->{path};
		2251
		2252	if (my $map = $cf::MAP{$path}) {
		2253	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2254	}
		2255
		2256	$MAP_PREFETCH{$path} |= $load;
		2257
		2258	$MAP_PREFETCHER ||= cf::async {
		2259	$Coro::current->{desc} = "map prefetcher";
		2260
		2261	while (%MAP_PREFETCH) {
		2262	while (my ($k, $v) = each %MAP_PREFETCH) {
		2263	if (my $map = find $k) {
		2264	$map->load if $v;
		2265	}
		2266
		2267	delete $MAP_PREFETCH{$k};
		2268	}
		2269	}
		2270	undef $MAP_PREFETCHER;
		2271	};
		2272	$MAP_PREFETCHER->prio (6);
		2273
		2274	()
		2275	}
		2276
		2277	# common code, used by both ->save and ->swapout
		2278	sub _save {
		2279	my ($self) = @_;
		2280
		2281	$self->{last_save} = $cf::RUNTIME;
		2282
		2283	return unless $self->dirty;
		2284
		2285	my $save = $self->save_path; utf8::encode $save;
		2286	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2287
		2288	$self->{load_path} = $save;
		2289
		2290	return if $self->{deny_save};
		2291
		2292	local $self->{last_access} = $self->last_access;#d#
		2293
		2294	cf::async {
		2295	$Coro::current->{desc} = "map player save";
		2296	$_->contr->save for $self->players;
		2297	};
		2298
		2299	cf::get_slot 0.02;
		2300
		2301	if ($uniq) {
		2302	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2303	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2304	} else {
		2305	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2306	}
1380	}	2307	}
1381		2308
1382	sub save {	2309	sub save {
1383	my ($self) = @_;	2310	my ($self) = @_;
1384		2311
1385	my $lock = cf::lock_acquire "map_data:" . $self->path;	2312	my $lock = cf::lock_acquire "map_data:$self->{path}";
1386		2313
1387	$self->{last_save} = $cf::RUNTIME;	2314	$self->_save;
1388
1389	return unless $self->dirty;
1390
1391	my $save = $self->{path}->save_path; utf8::encode $save;
1392	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1393
1394	$self->{load_path} = $save;
1395
1396	return if $self->{deny_save};
1397
1398	local $self->{last_access} = $self->last_access;#d#
1399
1400	cf::async {
1401	$_->contr->save for $self->players;
1402	};
1403
1404	if ($uniq) {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1406	$self->save_objects ($uniq, cf::IO_UNIQUES);
1407	} else {
1408	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1409	}
1410	}	2315	}
1411		2316
1412	sub swap_out {	2317	sub swap_out {
1413	my ($self) = @_;	2318	my ($self) = @_;
1414		2319
1415	# save first because save cedes
1416	$self->save;
1417
1418	my $lock = cf::lock_acquire "map_data:" . $self->path;	2320	my $lock = cf::lock_acquire "map_data:$self->{path}";
1419		2321
		2322	return if $self->in_memory != cf::MAP_ACTIVE;
		2323	return if $self->{deny_save};
1420	return if $self->players;	2324	return if $self->players;
1421	return if $self->in_memory != cf::MAP_IN_MEMORY;
1422	return if $self->{deny_save};
1423		2325
		2326	# first deactivate the map and "unlink" it from the core
		2327	$self->deactivate;
		2328	$_->clear_links_to ($self) for values %cf::MAP;
		2329	$self->in_memory (cf::MAP_SWAPPED);
		2330
		2331	# then atomically save
		2332	$self->_save;
		2333
		2334	# then free the map
1424	$self->clear;	2335	$self->clear;
1425	$self->in_memory (cf::MAP_SWAPPED);
1426	}	2336	}
1427		2337
1428	sub reset_at {	2338	sub reset_at {
1429	my ($self) = @_;	2339	my ($self) = @_;
1430		2340
1431	# TODO: safety, remove and allow resettable per-player maps	2341	# TODO: safety, remove and allow resettable per-player maps
1432	return 1e99 if $self->{path}{user_rel};
1433	return 1e99 if $self->{deny_reset};	2342	return 1e99 if $self->{deny_reset};
1434		2343
1435	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1436	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1437		2346
…		…
1442	my ($self) = @_;	2351	my ($self) = @_;
1443		2352
1444	$self->reset_at <= $cf::RUNTIME	2353	$self->reset_at <= $cf::RUNTIME
1445	}	2354	}
1446		2355
1447	sub unlink_save {
1448	my ($self) = @_;
1449
1450	utf8::encode (my $save = $self->{path}->save_path);
1451	aioreq_pri 3; IO::AIO::aio_unlink $save;
1452	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1453	}
1454
1455	sub rename {
1456	my ($self, $new_path) = @_;
1457
1458	$self->unlink_save;
1459
1460	delete $cf::MAP{$self->path};
1461	$self->{path} = new cf::path $new_path;
1462	$self->path ($self->{path}->as_string);
1463	$cf::MAP{$self->path} = $self;
1464
1465	$self->save;
1466	}
1467
1468	sub reset {	2356	sub reset {
1469	my ($self) = @_;	2357	my ($self) = @_;
1470		2358
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2359	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2360
1473	return if $self->players;	2361	return if $self->players;
1474	return if $self->{path}{user_rel};#d#
1475		2362
1476	warn "resetting map ", $self->path;#d#	2363	cf::trace "resetting map ", $self->path, "\n";
		2364
		2365	$self->in_memory (cf::MAP_SWAPPED);
		2366
		2367	# need to save uniques path
		2368	unless ($self->{deny_save}) {
		2369	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2370
		2371	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2372	if $uniq;
		2373	}
1477		2374
1478	delete $cf::MAP{$self->path};	2375	delete $cf::MAP{$self->path};
1479		2376
		2377	$self->deactivate;
1480	$_->clear_links_to ($self) for values %cf::MAP;	2378	$_->clear_links_to ($self) for values %cf::MAP;
		2379	$self->clear;
1481		2380
1482	$self->unlink_save;	2381	$self->unlink_save;
1483	$self->destroy;	2382	$self->destroy;
1484	}	2383	}
1485		2384
1486	my $nuke_counter = "aaaa";	2385	my $nuke_counter = "aaaa";
1487		2386
1488	sub nuke {	2387	sub nuke {
1489	my ($self) = @_;	2388	my ($self) = @_;
1490		2389
		2390	{
		2391	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2392
		2393	delete $cf::MAP{$self->path};
		2394
		2395	$self->unlink_save;
		2396
		2397	bless $self, "cf::map::wrap";
		2398	delete $self->{deny_reset};
1491	$self->{deny_save} = 1;	2399	$self->{deny_save} = 1;
1492	$self->reset_timeout (1);	2400	$self->reset_timeout (1);
1493	$self->rename ("{nuke}/" . ($nuke_counter++));	2401	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2402
		2403	$cf::MAP{$self->path} = $self;
		2404	}
		2405
1494	$self->reset; # polite request, might not happen	2406	$self->reset; # polite request, might not happen
1495	}	2407	}
1496		2408
1497	sub customise_for {	2409	=item $maps = cf::map::tmp_maps
1498	my ($map, $ob) = @_;
1499		2410
1500	if ($map->per_player) {	2411	Returns an arrayref with all map paths of currently instantiated and saved
1501	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2412	maps. May block.
		2413
		2414	=cut
		2415
		2416	sub tmp_maps() {
1502	}	2417	[
1503		2418	map {
1504	$map	2419	utf8::decode $_;
		2420	/\.map$/
		2421	? normalise $_
		2422	: ()
		2423	} @{ aio_readdir $TMPDIR or [] }
		2424	]
1505	}	2425	}
1506		2426
1507	sub emergency_save {	2427	=item $maps = cf::map::random_maps
1508	my $freeze_guard = cf::freeze_mainloop;
1509		2428
1510	warn "enter emergency perl save\n";	2429	Returns an arrayref with all map paths of currently instantiated and saved
		2430	random maps. May block.
1511		2431
1512	cf::sync_job {	2432	=cut
1513	warn "begin emergency player save\n";
1514	$_->save for values %cf::PLAYER;
1515	warn "end emergency player save\n";
1516		2433
1517	warn "begin emergency map save\n";	2434	sub random_maps() {
1518	$_->save for values %cf::MAP;	2435	[
1519	warn "end emergency map save\n";	2436	map {
		2437	utf8::decode $_;
		2438	/\.map$/
		2439	? normalise "?random/$_"
		2440	: ()
		2441	} @{ aio_readdir $RANDOMDIR or [] }
		2442	]
		2443	}
		2444
		2445	=item cf::map::unique_maps
		2446
		2447	Returns an arrayref of paths of all shared maps that have
		2448	instantiated unique items. May block.
		2449
		2450	=cut
		2451
		2452	sub unique_maps() {
		2453	[
		2454	map {
		2455	utf8::decode $_;
		2456	s/\.map$//; # TODO future compatibility hack
		2457	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2458	? ()
		2459	: normalise $_
		2460	} @{ aio_readdir $UNIQUEDIR or [] }
		2461	]
		2462	}
		2463
		2464	=item cf::map::static_maps
		2465
		2466	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2467	file in the shared directory excluding F</styles> and F</editor>). May
		2468	block.
		2469
		2470	=cut
		2471
		2472	sub static_maps() {
		2473	my @dirs = "";
		2474	my @maps;
		2475
		2476	while (@dirs) {
		2477	my $dir = shift @dirs;
		2478
		2479	next if $dir eq "/styles" || $dir eq "/editor";
		2480
		2481	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2482	or return;
		2483
		2484	for (@$files) {
		2485	s/\.map$// or next;
		2486	utf8::decode $_;
		2487	push @maps, "$dir/$_";
		2488	}
		2489
		2490	push @dirs, map "$dir/$_", @$dirs;
1520	};	2491	}
1521		2492
1522	warn "leave emergency perl save\n";	2493	\@maps
		2494	}
		2495
		2496	=back
		2497
		2498	=head3 cf::object
		2499
		2500	=cut
		2501
		2502	package cf::object;
		2503
		2504	=over 4
		2505
		2506	=item $ob->inv_recursive
		2507
		2508	Returns the inventory of the object I<and> their inventories, recursively,
		2509	but I<not> the object itself.
		2510
		2511	=cut
		2512
		2513	sub inv_recursive_;
		2514	sub inv_recursive_ {
		2515	map { $_, inv_recursive_ $_->inv } @_
		2516	}
		2517
		2518	sub inv_recursive {
		2519	inv_recursive_ inv $_[0]
		2520	}
		2521
		2522	=item $ref = $ob->ref
		2523
		2524	Creates and returns a persistent reference to an object that can be stored as a string.
		2525
		2526	=item $ob = cf::object::deref ($refstring)
		2527
		2528	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2529	even if the object actually exists. May block.
		2530
		2531	=cut
		2532
		2533	sub deref {
		2534	my ($ref) = @_;
		2535
		2536	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2537	my ($uuid, $name) = ($1, $2);
		2538	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2539	or return;
		2540	$pl->ob->uuid eq $uuid
		2541	or return;
		2542
		2543	$pl->ob
		2544	} else {
		2545	warn "$ref: cannot resolve object reference\n";
		2546	undef
		2547	}
1523	}	2548	}
1524		2549
1525	package cf;	2550	package cf;
1526		2551
1527	=back	2552	=back
1528
1529		2553
1530	=head3 cf::object::player	2554	=head3 cf::object::player
1531		2555
1532	=over 4	2556	=over 4
1533		2557
…		…
1536	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2560	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1537	can be C<undef>. Does the right thing when the player is currently in a	2561	can be C<undef>. Does the right thing when the player is currently in a
1538	dialogue with the given NPC character.	2562	dialogue with the given NPC character.
1539		2563
1540	=cut	2564	=cut
		2565
		2566	our $SAY_CHANNEL = {
		2567	id => "say",
		2568	title => "Map",
		2569	reply => "say ",
		2570	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2571	};
		2572
		2573	our $CHAT_CHANNEL = {
		2574	id => "chat",
		2575	title => "Chat",
		2576	reply => "chat ",
		2577	tooltip => "Player chat and shouts, global to the server.",
		2578	};
1541		2579
1542	# rough implementation of a future "reply" method that works	2580	# rough implementation of a future "reply" method that works
1543	# with dialog boxes.	2581	# with dialog boxes.
1544	#TODO: the first argument must go, split into a $npc->reply_to ( method	2582	#TODO: the first argument must go, split into a $npc->reply_to ( method
1545	sub cf::object::player::reply($$$;$) {	2583	sub cf::object::player::reply($$$;$) {
…		…
1547		2585
1548	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2586	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1549		2587
1550	if ($self->{record_replies}) {	2588	if ($self->{record_replies}) {
1551	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2589	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2590
1552	} else {	2591	} else {
		2592	my $pl = $self->contr;
		2593
		2594	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2595	my $dialog = $pl->{npc_dialog};
		2596	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2597
		2598	} else {
1553	$msg = $npc->name . " says: $msg" if $npc;	2599	$msg = $npc->name . " says: $msg" if $npc;
1554	$self->message ($msg, $flags);	2600	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2601	}
1555	}	2602	}
		2603	}
		2604
		2605	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2606
		2607	=cut
		2608
		2609	sub cf::object::send_msg {
		2610	my $pl = shift->contr
		2611	or return;
		2612	$pl->send_msg (@_);
1556	}	2613	}
1557		2614
1558	=item $player_object->may ("access")	2615	=item $player_object->may ("access")
1559		2616
1560	Returns wether the given player is authorized to access resource "access"	2617	Returns wether the given player is authorized to access resource "access"
…		…
1573		2630
1574	=item $player_object->enter_link	2631	=item $player_object->enter_link
1575		2632
1576	Freezes the player and moves him/her to a special map (C<{link}>).	2633	Freezes the player and moves him/her to a special map (C<{link}>).
1577		2634
1578	The player should be reaosnably safe there for short amounts of time. You	2635	The player should be reasonably safe there for short amounts of time (e.g.
1579	I<MUST> call C<leave_link> as soon as possible, though.	2636	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2637	though, as the player cannot control the character while it is on the link
		2638	map.
		2639
		2640	Will never block.
1580		2641
1581	=item $player_object->leave_link ($map, $x, $y)	2642	=item $player_object->leave_link ($map, $x, $y)
1582		2643
1583	Moves the player out of the specila link map onto the given map. If the	2644	Moves the player out of the special C<{link}> map onto the specified
1584	map is not valid (or omitted), the player will be moved back to the	2645	map. If the map is not valid (or omitted), the player will be moved back
1585	location he/she was before the call to C<enter_link>, or, if that fails,	2646	to the location he/she was before the call to C<enter_link>, or, if that
1586	to the emergency map position.	2647	fails, to the emergency map position.
1587		2648
1588	Might block.	2649	Might block.
1589		2650
1590	=cut	2651	=cut
		2652
		2653	sub link_map {
		2654	unless ($LINK_MAP) {
		2655	$LINK_MAP = cf::map::find "{link}"
		2656	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2657	$LINK_MAP->load;
		2658	}
		2659
		2660	$LINK_MAP
		2661	}
1591		2662
1592	sub cf::object::player::enter_link {	2663	sub cf::object::player::enter_link {
1593	my ($self) = @_;	2664	my ($self) = @_;
1594		2665
1595	$self->deactivate_recursive;	2666	$self->deactivate_recursive;
1596		2667
1597	return if $self->map == $LINK_MAP;	2668	++$self->{_link_recursion};
		2669
		2670	return if UNIVERSAL::isa $self->map, "ext::map_link";
1598		2671
1599	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2672	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1600	if $self->map;	2673	if $self->map && $self->map->{path} ne "{link}";
1601		2674
1602	$self->enter_map ($LINK_MAP, 20, 20);	2675	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1603	}	2676	}
1604		2677
1605	sub cf::object::player::leave_link {	2678	sub cf::object::player::leave_link {
1606	my ($self, $map, $x, $y) = @_;	2679	my ($self, $map, $x, $y) = @_;
		2680
		2681	return unless $self->contr->active;
1607		2682
1608	my $link_pos = delete $self->{_link_pos};	2683	my $link_pos = delete $self->{_link_pos};
1609		2684
1610	unless ($map) {	2685	unless ($map) {
1611	# restore original map position	2686	# restore original map position
…		…
1622	($x, $y) = (-1, -1)	2697	($x, $y) = (-1, -1)
1623	unless (defined $x) && (defined $y);	2698	unless (defined $x) && (defined $y);
1624		2699
1625	# use -1 or undef as default coordinates, not 0, 0	2700	# use -1 or undef as default coordinates, not 0, 0
1626	($x, $y) = ($map->enter_x, $map->enter_y)	2701	($x, $y) = ($map->enter_x, $map->enter_y)
1627	if $x <=0 && $y <= 0;	2702	if $x <= 0 && $y <= 0;
1628		2703
1629	$map->load;	2704	$map->load;
		2705	$map->load_neighbours;
1630		2706
1631	return unless $self->contr->active;	2707	return unless $self->contr->active;
		2708
		2709	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2710	if ($self->enter_map ($map, $x, $y)) {
		2711	# entering was successful
		2712	delete $self->{_link_recursion};
		2713	# only activate afterwards, to support waiting in hooks
1632	$self->activate_recursive;	2714	$self->activate_recursive;
1633	$self->enter_map ($map, $x, $y);
1634	}
1635
1636	cf::player->attach (
1637	on_logout => sub {
1638	my ($pl) = @_;
1639
1640	# abort map switching before logout
1641	if ($pl->ob->{_link_pos}) {
1642	cf::sync_job {
1643	$pl->ob->leave_link
1644	};
1645	}
1646	},	2715	}
1647	on_login => sub {
1648	my ($pl) = @_;
1649		2716
1650	# try to abort aborted map switching on player login :)	2717	}
1651	# should happen only on crashes
1652	if ($pl->ob->{_link_pos}) {
1653	$pl->ob->enter_link;
1654	(async {
1655	# we need this sleep as the login has a concurrent enter_exit running
1656	# and this sleep increases chances of the player not ending up in scorn
1657	$pl->ob->reply (undef,
1658	"There was an internal problem at your last logout, "
1659	. "the server will try to bring you to your intended destination in a second.",
1660	cf::NDI_RED);
1661	Coro::Timer::sleep 1;
1662	$pl->ob->leave_link;
1663	})->prio (2);
1664	}
1665	},
1666	);
1667		2718
1668	=item $player_object->goto ($path, $x, $y)	2719	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1669		2720
		2721	Moves the player to the given map-path and coordinates by first freezing
		2722	her, loading and preparing them map, calling the provided $check callback
		2723	that has to return the map if sucecssful, and then unfreezes the player on
		2724	the new (success) or old (failed) map position. In either case, $done will
		2725	be called at the end of this process.
		2726
		2727	Note that $check will be called with a potentially non-loaded map, so if
		2728	it needs a loaded map it has to call C<< ->load >>.
		2729
1670	=cut	2730	=cut
		2731
		2732	our $GOTOGEN;
1671		2733
1672	sub cf::object::player::goto {	2734	sub cf::object::player::goto {
1673	my ($self, $path, $x, $y) = @_;	2735	my ($self, $path, $x, $y, $check, $done) = @_;
		2736
		2737	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2738	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2739	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2740	($path, $x, $y) = @$EMERGENCY_POSITION;
		2741	}
		2742
		2743	# do generation counting so two concurrent goto's will be executed in-order
		2744	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1674		2745
1675	$self->enter_link;	2746	$self->enter_link;
1676		2747
1677	(async {	2748	(async {
1678	$path = new cf::path $path;	2749	$Coro::current->{desc} = "player::goto $path $x $y";
1679		2750
1680	my $map = cf::map::find $path->as_string;	2751	# *tag paths override both path and x|y
		2752	if ($path =~ /^\*(.*)$/) {
		2753	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2754	my $ob = $obs[rand @obs];
		2755
		2756	# see if we actually can go there
		2757	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2758	$ob = $obs[rand @obs];
		2759	} else {
		2760	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2761	}
		2762	# else put us there anyways for now #d#
		2763
		2764	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2765	} else {
		2766	($path, $x, $y) = (undef, undef, undef);
		2767	}
		2768	}
		2769
		2770	my $map = eval {
		2771	my $map = defined $path ? cf::map::find $path : undef;
		2772
		2773	if ($map) {
1681	$map = $map->customise_for ($self) if $map;	2774	$map = $map->customise_for ($self);
1682		2775	$map = $check->($map, $x, $y, $self) if $check && $map;
1683	# warn "entering ", $map->path, " at ($x, $y)\n"	2776	} else {
1684	# if $map;
1685
1686	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2777	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2778	}
1687		2779
		2780	$map
		2781	};
		2782
		2783	if ($@) {
		2784	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2785	LOG llevError | logBacktrace, Carp::longmess $@;
		2786	}
		2787
		2788	if ($gen == $self->{_goto_generation}) {
		2789	delete $self->{_goto_generation};
1688	$self->leave_link ($map, $x, $y);	2790	$self->leave_link ($map, $x, $y);
		2791	}
		2792
		2793	$done->($self) if $done;
1689	})->prio (1);	2794	})->prio (1);
1690	}	2795	}
1691		2796
1692	=item $player_object->enter_exit ($exit_object)	2797	=item $player_object->enter_exit ($exit_object)
1693		2798
…		…
1695		2800
1696	sub parse_random_map_params {	2801	sub parse_random_map_params {
1697	my ($spec) = @_;	2802	my ($spec) = @_;
1698		2803
1699	my $rmp = { # defaults	2804	my $rmp = { # defaults
1700	xsize => 10,	2805	xsize => (cf::rndm 15, 40),
1701	ysize => 10,	2806	ysize => (cf::rndm 15, 40),
		2807	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2808	#layout => string,
1702	};	2809	};
1703		2810
1704	for (split /\n/, $spec) {	2811	for (split /\n/, $spec) {
1705	my ($k, $v) = split /\s+/, $_, 2;	2812	my ($k, $v) = split /\s+/, $_, 2;
1706		2813
…		…
1718	# that depends on the exit object	2825	# that depends on the exit object
1719		2826
1720	my $rmp = parse_random_map_params $exit->msg;	2827	my $rmp = parse_random_map_params $exit->msg;
1721		2828
1722	if ($exit->map) {	2829	if ($exit->map) {
1723	$rmp->{region} = $exit->map->region_name;	2830	$rmp->{region} = $exit->region->name;
1724	$rmp->{origin_map} = $exit->map->path;	2831	$rmp->{origin_map} = $exit->map->path;
1725	$rmp->{origin_x} = $exit->x;	2832	$rmp->{origin_x} = $exit->x;
1726	$rmp->{origin_y} = $exit->y;	2833	$rmp->{origin_y} = $exit->y;
		2834
		2835	$exit->map->touch;
1727	}	2836	}
1728		2837
1729	$rmp->{random_seed} ||= $exit->random_seed;	2838	$rmp->{random_seed} ||= $exit->random_seed;
1730		2839
1731	my $data = cf::to_json $rmp;	2840	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1732	my $md5 = Digest::MD5::md5_hex $data;	2841	my $md5 = Digest::MD5::md5_hex $data;
		2842	my $meta = "$RANDOMDIR/$md5.meta";
1733		2843
1734	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2844	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1735	aio_write $fh, 0, (length $data), $data, 0;	2845	aio_write $fh, 0, (length $data), $data, 0;
		2846	undef $fh;
		2847	aio_rename "$meta~", $meta;
1736		2848
		2849	my $slaying = "?random/$md5";
		2850
		2851	if ($exit->valid) {
1737	$exit->slaying ("?random/$md5");	2852	$exit->slaying ("?random/$md5");
1738	$exit->msg (undef);	2853	$exit->msg (undef);
		2854	}
1739	}	2855	}
1740	}	2856	}
1741		2857
1742	sub cf::object::player::enter_exit {	2858	sub cf::object::player::enter_exit {
1743	my ($self, $exit) = @_;	2859	my ($self, $exit) = @_;
…		…
1745	return unless $self->type == cf::PLAYER;	2861	return unless $self->type == cf::PLAYER;
1746		2862
1747	$self->enter_link;	2863	$self->enter_link;
1748		2864
1749	(async {	2865	(async {
1750	$self->deactivate_recursive; # just to be sure	2866	$Coro::current->{desc} = "enter_exit";
		2867
1751	unless (eval {	2868	unless (eval {
		2869	$self->deactivate_recursive; # just to be sure
		2870
		2871	# random map handling
		2872	{
		2873	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2874
1752	prepare_random_map $exit	2875	prepare_random_map $exit
1753	if $exit->slaying eq "/!";	2876	if $exit->slaying eq "/!";
		2877	}
1754		2878
1755	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2879	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1756	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2880	my $x = $exit->stats->hp;
		2881	my $y = $exit->stats->sp;
1757		2882
		2883	$self->goto ($map, $x, $y);
		2884
		2885	# if exit is damned, update players death & WoR home-position
		2886	$self->contr->savebed ($map, $x, $y)
		2887	if $exit->flag (cf::FLAG_DAMNED);
		2888
1758	1;	2889	1
1759	}) {	2890	}) {
1760	$self->message ("Something went wrong deep within the crossfire server. "	2891	$self->message ("Something went wrong deep within the deliantra server. "
1761	. "I'll try to bring you back to the map you were before. "	2892	. "I'll try to bring you back to the map you were before. "
1762	. "Please report this to the dungeon master",	2893	. "Please report this to the dungeon master!",
1763	cf::NDI_UNIQUE | cf::NDI_RED);	2894	cf::NDI_UNIQUE | cf::NDI_RED);
1764		2895
1765	warn "ERROR in enter_exit: $@";	2896	error "ERROR in enter_exit: $@";
1766	$self->leave_link;	2897	$self->leave_link;
1767	}	2898	}
1768	})->prio (1);	2899	})->prio (1);
1769	}	2900	}
1770		2901
…		…
1781		2912
1782	sub cf::client::send_drawinfo {	2913	sub cf::client::send_drawinfo {
1783	my ($self, $text, $flags) = @_;	2914	my ($self, $text, $flags) = @_;
1784		2915
1785	utf8::encode $text;	2916	utf8::encode $text;
1786	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2917	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1787	}	2918	}
1788		2919
		2920	=item $client->send_big_packet ($pkt)
		2921
		2922	Like C<send_packet>, but tries to compress large packets, and fragments
		2923	them as required.
		2924
		2925	=cut
		2926
		2927	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2928
		2929	sub cf::client::send_big_packet {
		2930	my ($self, $pkt) = @_;
		2931
		2932	# try lzf for large packets
		2933	$pkt = "lzf " . Compress::LZF::compress $pkt
		2934	if 1024 <= length $pkt and $self->{can_lzf};
		2935
		2936	# split very large packets
		2937	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2938	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2939	$pkt = "frag";
		2940	}
		2941
		2942	$self->send_packet ($pkt);
		2943	}
		2944
		2945	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2946
		2947	Send a drawinfo or msg packet to the client, formatting the msg for the
		2948	client if neccessary. C<$type> should be a string identifying the type of
		2949	the message, with C<log> being the default. If C<$color> is negative, suppress
		2950	the message unless the client supports the msg packet.
		2951
		2952	=cut
		2953
		2954	# non-persistent channels (usually the info channel)
		2955	our %CHANNEL = (
		2956	"c/motd" => {
		2957	id => "infobox",
		2958	title => "MOTD",
		2959	reply => undef,
		2960	tooltip => "The message of the day",
		2961	},
		2962	"c/identify" => {
		2963	id => "infobox",
		2964	title => "Identify",
		2965	reply => undef,
		2966	tooltip => "Items recently identified",
		2967	},
		2968	"c/examine" => {
		2969	id => "infobox",
		2970	title => "Examine",
		2971	reply => undef,
		2972	tooltip => "Signs and other items you examined",
		2973	},
		2974	"c/shopinfo" => {
		2975	id => "infobox",
		2976	title => "Shop Info",
		2977	reply => undef,
		2978	tooltip => "What your bargaining skill tells you about the shop",
		2979	},
		2980	"c/book" => {
		2981	id => "infobox",
		2982	title => "Book",
		2983	reply => undef,
		2984	tooltip => "The contents of a note or book",
		2985	},
		2986	"c/lookat" => {
		2987	id => "infobox",
		2988	title => "Look",
		2989	reply => undef,
		2990	tooltip => "What you saw there",
		2991	},
		2992	"c/who" => {
		2993	id => "infobox",
		2994	title => "Players",
		2995	reply => undef,
		2996	tooltip => "Shows players who are currently online",
		2997	},
		2998	"c/body" => {
		2999	id => "infobox",
		3000	title => "Body Parts",
		3001	reply => undef,
		3002	tooltip => "Shows which body parts you posess and are available",
		3003	},
		3004	"c/statistics" => {
		3005	id => "infobox",
		3006	title => "Statistics",
		3007	reply => undef,
		3008	tooltip => "Shows your primary statistics",
		3009	},
		3010	"c/skills" => {
		3011	id => "infobox",
		3012	title => "Skills",
		3013	reply => undef,
		3014	tooltip => "Shows your experience per skill and item power",
		3015	},
		3016	"c/shopitems" => {
		3017	id => "infobox",
		3018	title => "Shop Items",
		3019	reply => undef,
		3020	tooltip => "Shows the items currently for sale in this shop",
		3021	},
		3022	"c/resistances" => {
		3023	id => "infobox",
		3024	title => "Resistances",
		3025	reply => undef,
		3026	tooltip => "Shows your resistances",
		3027	},
		3028	"c/pets" => {
		3029	id => "infobox",
		3030	title => "Pets",
		3031	reply => undef,
		3032	tooltip => "Shows information abotu your pets/a specific pet",
		3033	},
		3034	"c/perceiveself" => {
		3035	id => "infobox",
		3036	title => "Perceive Self",
		3037	reply => undef,
		3038	tooltip => "You gained detailed knowledge about yourself",
		3039	},
		3040	"c/uptime" => {
		3041	id => "infobox",
		3042	title => "Uptime",
		3043	reply => undef,
		3044	tooltip => "How long the server has been running since last restart",
		3045	},
		3046	"c/mapinfo" => {
		3047	id => "infobox",
		3048	title => "Map Info",
		3049	reply => undef,
		3050	tooltip => "Information related to the maps",
		3051	},
		3052	"c/party" => {
		3053	id => "party",
		3054	title => "Party",
		3055	reply => "gsay ",
		3056	tooltip => "Messages and chat related to your party",
		3057	},
		3058	"c/death" => {
		3059	id => "death",
		3060	title => "Death",
		3061	reply => undef,
		3062	tooltip => "Reason for and more info about your most recent death",
		3063	},
		3064	"c/say" => $SAY_CHANNEL,
		3065	"c/chat" => $CHAT_CHANNEL,
		3066	);
		3067
		3068	sub cf::client::send_msg {
		3069	my ($self, $channel, $msg, $color, @extra) = @_;
		3070
		3071	$msg = $self->pl->expand_cfpod ($msg)
		3072	unless $color & cf::NDI_VERBATIM;
		3073
		3074	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3075
		3076	# check predefined channels, for the benefit of C
		3077	if ($CHANNEL{$channel}) {
		3078	$channel = $CHANNEL{$channel};
		3079
		3080	$self->ext_msg (channel_info => $channel);
		3081	$channel = $channel->{id};
		3082
		3083	} elsif (ref $channel) {
		3084	# send meta info to client, if not yet sent
		3085	unless (exists $self->{channel}{$channel->{id}}) {
		3086	$self->{channel}{$channel->{id}} = $channel;
		3087	$self->ext_msg (channel_info => $channel);
		3088	}
		3089
		3090	$channel = $channel->{id};
		3091	}
		3092
		3093	return unless @extra || length $msg;
		3094
		3095	# default colour, mask it out
		3096	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3097	if $color & cf::NDI_DEF;
		3098
		3099	my $pkt = "msg "
		3100	. $self->{json_coder}->encode (
		3101	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3102	);
		3103
		3104	$self->send_big_packet ($pkt);
		3105	}
		3106
		3107	=item $client->ext_msg ($type, @msg)
		3108
		3109	Sends an ext event to the client.
		3110
		3111	=cut
		3112
		3113	sub cf::client::ext_msg($$@) {
		3114	my ($self, $type, @msg) = @_;
		3115
		3116	if ($self->extcmd == 2) {
		3117	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3118	} elsif ($self->extcmd == 1) { # TODO: remove
		3119	push @msg, msgtype => "event_$type";
		3120	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3121	}
		3122	}
		3123
		3124	=item $client->ext_reply ($msgid, @msg)
		3125
		3126	Sends an ext reply to the client.
		3127
		3128	=cut
		3129
		3130	sub cf::client::ext_reply($$@) {
		3131	my ($self, $id, @msg) = @_;
		3132
		3133	if ($self->extcmd == 2) {
		3134	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3135	} elsif ($self->extcmd == 1) {
		3136	#TODO: version 1, remove
		3137	unshift @msg, msgtype => "reply", msgid => $id;
		3138	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3139	}
		3140	}
1789		3141
1790	=item $success = $client->query ($flags, "text", \&cb)	3142	=item $success = $client->query ($flags, "text", \&cb)
1791		3143
1792	Queues a query to the client, calling the given callback with	3144	Queues a query to the client, calling the given callback with
1793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3145	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1794	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3146	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1795		3147
1796	Queries can fail, so check the return code. Or don't, as queries will become	3148	Queries can fail, so check the return code. Or don't, as queries will
1797	reliable at some point in the future.	3149	become reliable at some point in the future.
1798		3150
1799	=cut	3151	=cut
1800		3152
1801	sub cf::client::query {	3153	sub cf::client::query {
1802	my ($self, $flags, $text, $cb) = @_;	3154	my ($self, $flags, $text, $cb) = @_;
…		…
1810	utf8::encode $text;	3162	utf8::encode $text;
1811	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3163	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1812		3164
1813	$self->send_packet ($self->{query_queue}[0][0])	3165	$self->send_packet ($self->{query_queue}[0][0])
1814	if @{ $self->{query_queue} } == 1;	3166	if @{ $self->{query_queue} } == 1;
		3167
		3168	1
1815	}	3169	}
1816		3170
1817	cf::client->attach (	3171	cf::client->attach (
		3172	on_connect => sub {
		3173	my ($ns) = @_;
		3174
		3175	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3176	},
1818	on_reply => sub {	3177	on_reply => sub {
1819	my ($ns, $msg) = @_;	3178	my ($ns, $msg) = @_;
1820		3179
1821	# this weird shuffling is so that direct followup queries	3180	# this weird shuffling is so that direct followup queries
1822	# get handled first	3181	# get handled first
1823	my $queue = delete $ns->{query_queue}	3182	my $queue = delete $ns->{query_queue}
1824	or return; # be conservative, not sure how that can happen, but we saw a crash here	3183	or return; # be conservative, not sure how that can happen, but we saw a crash here
1825		3184
1826	(shift @$queue)->[1]->($msg);	3185	(shift @$queue)->[1]->($msg);
		3186	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1827		3187
1828	push @{ $ns->{query_queue} }, @$queue;	3188	push @{ $ns->{query_queue} }, @$queue;
1829		3189
1830	if (@{ $ns->{query_queue} } == @$queue) {	3190	if (@{ $ns->{query_queue} } == @$queue) {
1831	if (@$queue) {	3191	if (@$queue) {
…		…
1833	} else {	3193	} else {
1834	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3194	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1835	}	3195	}
1836	}	3196	}
1837	},	3197	},
		3198	on_exticmd => sub {
		3199	my ($ns, $buf) = @_;
		3200
		3201	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3202
		3203	if (ref $msg) {
		3204	my ($type, $reply, @payload) =
		3205	"ARRAY" eq ref $msg
		3206	? @$msg
		3207	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3208
		3209	my @reply;
		3210
		3211	if (my $cb = $EXTICMD{$type}) {
		3212	@reply = $cb->($ns, @payload);
		3213	}
		3214
		3215	$ns->ext_reply ($reply, @reply)
		3216	if $reply;
		3217
		3218	} else {
		3219	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3220	}
		3221
		3222	cf::override;
		3223	},
1838	);	3224	);
1839		3225
1840	=item $client->async (\&cb)	3226	=item $client->async (\&cb)
1841		3227
1842	Create a new coroutine, running the specified callback. The coroutine will	3228	Create a new coroutine, running the specified callback. The coroutine will
…		…
1858		3244
1859	$coro	3245	$coro
1860	}	3246	}
1861		3247
1862	cf::client->attach (	3248	cf::client->attach (
1863	on_destroy => sub {	3249	on_client_destroy => sub {
1864	my ($ns) = @_;	3250	my ($ns) = @_;
1865		3251
1866	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3252	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1867	},	3253	},
1868	);	3254	);
…		…
1883	our $safe = new Safe "safe";	3269	our $safe = new Safe "safe";
1884	our $safe_hole = new Safe::Hole;	3270	our $safe_hole = new Safe::Hole;
1885		3271
1886	$SIG{FPE} = 'IGNORE';	3272	$SIG{FPE} = 'IGNORE';
1887		3273
1888	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3274	$safe->permit_only (Opcode::opset qw(
		3275	:base_core :base_mem :base_orig :base_math :base_loop
		3276	grepstart grepwhile mapstart mapwhile
		3277	sort time
		3278	));
1889		3279
1890	# here we export the classes and methods available to script code	3280	# here we export the classes and methods available to script code
1891		3281
1892	=pod	3282	=pod
1893		3283
1894	The following fucntions and emthods are available within a safe environment:	3284	The following functions and methods are available within a safe environment:
1895		3285
1896	cf::object contr pay_amount pay_player map	3286	cf::object
		3287	contr pay_amount pay_player map x y force_find force_add destroy
		3288	insert remove name archname title slaying race decrease split
		3289	value
		3290
1897	cf::object::player player	3291	cf::object::player
1898	cf::player peaceful	3292	player
1899	cf::map trigger	3293
		3294	cf::player
		3295	peaceful
		3296
		3297	cf::map
		3298	trigger
1900		3299
1901	=cut	3300	=cut
1902		3301
1903	for (	3302	for (
1904	["cf::object" => qw(contr pay_amount pay_player map)],	3303	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3304	insert remove inv nrof name archname title slaying race
		3305	decrease split destroy change_exp value msg lore send_msg)],
1905	["cf::object::player" => qw(player)],	3306	["cf::object::player" => qw(player)],
1906	["cf::player" => qw(peaceful)],	3307	["cf::player" => qw(peaceful send_msg)],
1907	["cf::map" => qw(trigger)],	3308	["cf::map" => qw(trigger)],
1908	) {	3309	) {
1909	no strict 'refs';
1910	my ($pkg, @funs) = @$_;	3310	my ($pkg, @funs) = @$_;
1911	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3311	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1912	for @funs;	3312	for @funs;
1913	}	3313	}
1914		3314
…		…
1929		3329
1930	my $qcode = $code;	3330	my $qcode = $code;
1931	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3331	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1932	$qcode =~ s/\n/\\n/g;	3332	$qcode =~ s/\n/\\n/g;
1933		3333
		3334	%vars = (_dummy => 0) unless %vars;
		3335
		3336	my @res;
1934	local $_;	3337	local $_;
1935	local @safe::cf::_safe_eval_args = values %vars;
1936		3338
1937	my $eval =	3339	my $eval =
1938	"do {\n"	3340	"do {\n"
1939	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3341	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1940	. "#line 0 \"{$qcode}\"\n"	3342	. "#line 0 \"{$qcode}\"\n"
1941	. $code	3343	. $code
1942	. "\n}"	3344	. "\n}"
1943	;	3345	;
1944		3346
		3347	if ($CFG{safe_eval}) {
1945	sub_generation_inc;	3348	sub_generation_inc;
		3349	local @safe::cf::_safe_eval_args = values %vars;
1946	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3350	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1947	sub_generation_inc;	3351	sub_generation_inc;
		3352	} else {
		3353	local @cf::_safe_eval_args = values %vars;
		3354	@res = wantarray ? eval eval : scalar eval $eval;
		3355	}
1948		3356
1949	if ($@) {	3357	if ($@) {
1950	warn "$@";	3358	warn "$@",
1951	warn "while executing safe code '$code'\n";	3359	"while executing safe code '$code'\n",
1952	warn "with arguments " . (join " ", %vars) . "\n";	3360	"with arguments " . (join " ", %vars) . "\n";
1953	}	3361	}
1954		3362
1955	wantarray ? @res : $res[0]	3363	wantarray ? @res : $res[0]
1956	}	3364	}
1957		3365
…		…
1971	=cut	3379	=cut
1972		3380
1973	sub register_script_function {	3381	sub register_script_function {
1974	my ($fun, $cb) = @_;	3382	my ($fun, $cb) = @_;
1975		3383
1976	no strict 'refs';	3384	$fun = "safe::$fun" if $CFG{safe_eval};
1977	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3385	*$fun = $safe_hole->wrap ($cb);
1978	}	3386	}
1979		3387
1980	=back	3388	=back
1981		3389
1982	=cut	3390	=cut
1983		3391
1984	#############################################################################	3392	#############################################################################
		3393	# the server's init and main functions
1985		3394
1986	=head2 EXTENSION DATABASE SUPPORT	3395	sub load_facedata($) {
		3396	my ($path) = @_;
1987		3397
1988	Crossfire maintains a very simple database for extension use. It can	3398	# HACK to clear player env face cache, we need some signal framework
1989	currently store anything that can be serialised using Storable, which	3399	# for this (global event?)
1990	excludes objects.	3400	%ext::player_env::MUSIC_FACE_CACHE = ();
1991		3401
1992	The parameter C<$family> should best start with the name of the extension	3402	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1993	using it, it should be unique.
1994		3403
1995	=over 4	3404	trace "loading facedata from $path\n";
1996		3405
1997	=item $hashref = cf::db_get $family	3406	0 < aio_load $path, my $facedata
		3407	or die "$path: $!";
1998		3408
1999	Return a hashref for use by the extension C<$family>, which can be	3409	$facedata = Coro::Storable::thaw $facedata;
2000	modified. After modifications, you have to call C<cf::db_dirty> or
2001	C<cf::db_sync>.
2002		3410
2003	=item $value = cf::db_get $family => $key	3411	$facedata->{version} == 2
		3412	or cf::cleanup "$path: version mismatch, cannot proceed.";
2004		3413
2005	Returns a single value from the database	3414	# patch in the exptable
2006		3415	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2007	=item cf::db_put $family => $hashref	3416	$facedata->{resource}{"res/exp_table"} = {
2008		3417	type => FT_RSRC,
2009	Stores the given family hashref into the database. Updates are delayed, if	3418	data => $exp_table,
2010	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3419	hash => (Digest::MD5::md5 $exp_table),
2011
2012	=item cf::db_put $family => $key => $value
2013
2014	Stores the given C<$value> in the family hash. Updates are delayed, if you
2015	want the data to be synced to disk immediately, use C<cf::db_sync>.
2016
2017	=item cf::db_dirty
2018
2019	Marks the database as dirty, to be updated at a later time.
2020
2021	=item cf::db_sync
2022
2023	Immediately write the database to disk I<if it is dirty>.
2024
2025	=cut
2026
2027	our $DB;
2028
2029	{
2030	my $path = cf::localdir . "/database.pst";
2031
2032	sub db_load() {
2033	$DB = stat $path ? Storable::retrieve $path : { };
2034	}
2035
2036	my $pid;
2037
2038	sub db_save() {
2039	waitpid $pid, 0 if $pid;
2040	if (0 == ($pid = fork)) {
2041	$DB->{_meta}{version} = 1;
2042	Storable::nstore $DB, "$path~";
2043	rename "$path~", $path;
2044	cf::_exit 0 if defined $pid;
2045	}
2046	}
2047
2048	my $dirty;
2049
2050	sub db_sync() {
2051	db_save if $dirty;
2052	undef $dirty;
2053	}
2054
2055	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2056	db_sync;
2057	});	3420	};
		3421	cf::cede_to_tick;
2058		3422
2059	sub db_dirty() {
2060	$dirty = 1;
2061	$idle->start;
2062	}	3423	{
		3424	my $faces = $facedata->{faceinfo};
2063		3425
2064	sub db_get($;$) {	3426	while (my ($face, $info) = each %$faces) {
2065	@_ >= 2	3427	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2066	? $DB->{$_[0]}{$_[1]}
2067	: ($DB->{$_[0]} ||= { })
2068	}
2069		3428
2070	sub db_put($$;$) {	3429	cf::face::set_visibility $idx, $info->{visibility};
2071	if (@_ >= 3) {	3430	cf::face::set_magicmap $idx, $info->{magicmap};
2072	$DB->{$_[0]}{$_[1]} = $_[2];	3431	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2073	} else {	3432	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2074	$DB->{$_[0]} = $_[1];	3433	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2075	}
2076	db_dirty;
2077	}
2078		3434
2079	cf::global->attach (	3435	cf::cede_to_tick;
2080	prio => 10000,
2081	on_cleanup => sub {
2082	db_sync;
2083	},	3436	}
2084	);
2085	}
2086		3437
2087	#############################################################################	3438	while (my ($face, $info) = each %$faces) {
2088	# the server's main()	3439	next unless $info->{smooth};
2089		3440
2090	sub cfg_load {	3441	my $idx = cf::face::find $face
2091	open my $fh, "<:utf8", cf::confdir . "/config"	3442	or next;
2092	or return;
2093		3443
2094	local $/;	3444	if (my $smooth = cf::face::find $info->{smooth}) {
2095	*CFG = YAML::Syck::Load <$fh>;	3445	cf::face::set_smooth $idx, $smooth;
		3446	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3447	} else {
		3448	error "smooth face '$info->{smooth}' not found for face '$face'";
		3449	}
2096		3450
		3451	cf::cede_to_tick;
		3452	}
		3453	}
		3454
		3455	{
		3456	my $anims = $facedata->{animinfo};
		3457
		3458	while (my ($anim, $info) = each %$anims) {
		3459	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3460	cf::cede_to_tick;
		3461	}
		3462
		3463	cf::anim::invalidate_all; # d'oh
		3464	}
		3465
		3466	{
		3467	my $res = $facedata->{resource};
		3468
		3469	while (my ($name, $info) = each %$res) {
		3470	if (defined $info->{type}) {
		3471	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3472
		3473	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3474	cf::face::set_type $idx, $info->{type};
		3475	} else {
		3476	$RESOURCE{$name} = $info; # unused
		3477	}
		3478
		3479	cf::cede_to_tick;
		3480	}
		3481	}
		3482
		3483	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3484
		3485	1
		3486	}
		3487
		3488	register_exticmd fx_want => sub {
		3489	my ($ns, $want) = @_;
		3490
		3491	while (my ($k, $v) = each %$want) {
		3492	$ns->fx_want ($k, $v);
		3493	}
		3494	};
		3495
		3496	sub load_resource_file($) {
		3497	my $guard = lock_acquire "load_resource_file";
		3498
		3499	my $status = load_resource_file_ $_[0];
		3500	get_slot 0.1, 100;
		3501	cf::arch::commit_load;
		3502
		3503	$status
		3504	}
		3505
		3506	sub reload_regions {
		3507	# HACK to clear player env face cache, we need some signal framework
		3508	# for this (global event?)
		3509	%ext::player_env::MUSIC_FACE_CACHE = ();
		3510
		3511	load_resource_file "$MAPDIR/regions"
		3512	or die "unable to load regions file\n";
		3513
		3514	for (cf::region::list) {
		3515	$_->{match} = qr/$_->{match}/
		3516	if exists $_->{match};
		3517	}
		3518	}
		3519
		3520	sub reload_facedata {
		3521	load_facedata "$DATADIR/facedata"
		3522	or die "unable to load facedata\n";
		3523	}
		3524
		3525	sub reload_archetypes {
		3526	load_resource_file "$DATADIR/archetypes"
		3527	or die "unable to load archetypes\n";
		3528	}
		3529
		3530	sub reload_treasures {
		3531	load_resource_file "$DATADIR/treasures"
		3532	or die "unable to load treasurelists\n";
		3533	}
		3534
		3535	sub reload_sound {
		3536	trace "loading sound config from $DATADIR/sound\n";
		3537
		3538	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3539	or die "$DATADIR/sound $!";
		3540
		3541	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3542
		3543	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3544	my $sound = $soundconf->{compat}[$_]
		3545	or next;
		3546
		3547	my $face = cf::face::find "sound/$sound->[1]";
		3548	cf::sound::set $sound->[0] => $face;
		3549	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3550	}
		3551
		3552	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3553	my $face = cf::face::find "sound/$v";
		3554	cf::sound::set $k => $face;
		3555	}
		3556	}
		3557
		3558	sub reload_resources {
		3559	trace "reloading resource files...\n";
		3560
		3561	reload_exp_table;
		3562	reload_materials;
		3563	reload_facedata;
		3564	reload_sound;
		3565	reload_archetypes;
		3566	reload_regions;
		3567	reload_treasures;
		3568
		3569	trace "finished reloading resource files\n";
		3570	}
		3571
		3572	sub reload_config {
		3573	trace "reloading config file...\n";
		3574
		3575	0 < aio_load "$CONFDIR/config", my $config
		3576	or die "$CONFDIR/config: $!";
		3577
		3578	utf8::decode $config;
		3579	*CFG = yaml_load $config;
		3580
2097	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3581	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2098		3582
2099	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3583	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2100	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3584	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2101		3585
2102	if (exists $CFG{mlockall}) {	3586	if (exists $CFG{mlockall}) {
2103	eval {	3587	eval {
2104	$CFG{mlockall} ? &mlockall : &munlockall	3588	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2105	and die "WARNING: m(un)lockall failed: $!\n";	3589	and die "WARNING: m(un)lockall failed: $!\n";
2106	};	3590	};
2107	warn $@ if $@;	3591	warn $@ if $@;
2108	}	3592	}
2109	}	3593	}
2110		3594
		3595	sub pidfile() {
		3596	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3597	or die "$PIDFILE: $!";
		3598	flock $fh, &Fcntl::LOCK_EX
		3599	or die "$PIDFILE: flock: $!";
		3600	$fh
		3601	}
		3602
		3603	# make sure only one server instance is running at any one time
		3604	sub atomic {
		3605	my $fh = pidfile;
		3606
		3607	my $pid = <$fh>;
		3608	kill 9, $pid if $pid > 0;
		3609
		3610	seek $fh, 0, 0;
		3611	print $fh $$;
		3612	}
		3613
		3614	sub main_loop {
		3615	trace "EV::loop starting\n";
		3616	if (1) {
		3617	EV::loop;
		3618	}
		3619	trace "EV::loop returned\n";
		3620	goto &main_loop unless $REALLY_UNLOOP;
		3621	}
		3622
2111	sub main {	3623	sub main {
		3624	cf::init_globals; # initialise logging
		3625
		3626	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3627	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3628	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3629	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3630
		3631	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3632
2112	# we must not ever block the main coroutine	3633	# we must not ever block the main coroutine
2113	local $Coro::idle = sub {	3634	local $Coro::idle = sub {
2114	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3635	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2115	async { Event::one_event };	3636	(async {
		3637	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3638	EV::loop EV::LOOP_ONESHOT;
		3639	})->prio (Coro::PRIO_MAX);
2116	};	3640	};
2117		3641
2118	cfg_load;	3642	evthread_start IO::AIO::poll_fileno;
2119	db_load;	3643
		3644	cf::sync_job {
		3645	cf::incloader::init ();
		3646
		3647	cf::init_anim;
		3648	cf::init_attackmess;
		3649	cf::init_dynamic;
		3650
		3651	cf::load_settings;
		3652
		3653	reload_resources;
		3654	reload_config;
		3655	db_init;
		3656
		3657	cf::init_uuid;
		3658	cf::init_signals;
		3659	cf::init_skills;
		3660
		3661	cf::init_beforeplay;
		3662
		3663	atomic;
		3664
2120	load_extensions;	3665	load_extensions;
2121	Event::loop;	3666
		3667	utime time, time, $RUNTIMEFILE;
		3668
		3669	# no (long-running) fork's whatsoever before this point(!)
		3670	use POSIX ();
		3671	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3672
		3673	cf::_post_init 0;
		3674	};
		3675
		3676	cf::object::thawer::errors_are_fatal 0;
		3677	info "parse errors in files are no longer fatal from this point on.\n";
		3678
		3679	my $free_main; $free_main = EV::idle sub {
		3680	undef $free_main;
		3681	undef &main; # free gobs of memory :)
		3682	};
		3683
		3684	goto &main_loop;
2122	}	3685	}
2123		3686
2124	#############################################################################	3687	#############################################################################
2125	# initialisation	3688	# initialisation and cleanup
2126		3689
		3690	# install some emergency cleanup handlers
		3691	BEGIN {
		3692	our %SIGWATCHER = ();
		3693	for my $signal (qw(INT HUP TERM)) {
		3694	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3695	cf::cleanup "SIG$signal";
		3696	};
		3697	}
		3698	}
		3699
		3700	sub write_runtime_sync {
		3701	my $t0 = AE::time;
		3702
		3703	# first touch the runtime file to show we are still running:
		3704	# the fsync below can take a very very long time.
		3705
		3706	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3707
		3708	my $guard = cf::lock_acquire "write_runtime";
		3709
		3710	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3711	or return;
		3712
		3713	my $value = $cf::RUNTIME + 90 + 10;
		3714	# 10 is the runtime save interval, for a monotonic clock
		3715	# 60 allows for the watchdog to kill the server.
		3716
		3717	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3718	and return;
		3719
		3720	# always fsync - this file is important
		3721	aio_fsync $fh
		3722	and return;
		3723
		3724	# touch it again to show we are up-to-date
		3725	aio_utime $fh, undef, undef;
		3726
		3727	close $fh
		3728	or return;
		3729
		3730	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3731	and return;
		3732
		3733	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3734
		3735	1
		3736	}
		3737
		3738	our $uuid_lock;
		3739	our $uuid_skip;
		3740
		3741	sub write_uuid_sync($) {
		3742	$uuid_skip ||= $_[0];
		3743
		3744	return if $uuid_lock;
		3745	local $uuid_lock = 1;
		3746
		3747	my $uuid = "$LOCALDIR/uuid";
		3748
		3749	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3750	or return;
		3751
		3752	my $value = uuid_seq uuid_cur;
		3753
		3754	unless ($value) {
		3755	info "cowardly refusing to write zero uuid value!\n";
		3756	return;
		3757	}
		3758
		3759	my $value = uuid_str $value + $uuid_skip;
		3760	$uuid_skip = 0;
		3761
		3762	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3763	and return;
		3764
		3765	# always fsync - this file is important
		3766	aio_fsync $fh
		3767	and return;
		3768
		3769	close $fh
		3770	or return;
		3771
		3772	aio_rename "$uuid~", $uuid
		3773	and return;
		3774
		3775	trace "uuid file written ($value).\n";
		3776
		3777	1
		3778
		3779	}
		3780
		3781	sub write_uuid($$) {
		3782	my ($skip, $sync) = @_;
		3783
		3784	$sync ? write_uuid_sync $skip
		3785	: async { write_uuid_sync $skip };
		3786	}
		3787
		3788	sub emergency_save() {
		3789	my $freeze_guard = cf::freeze_mainloop;
		3790
		3791	info "emergency_perl_save: enter\n";
		3792
		3793	# this is a trade-off: we want to be very quick here, so
		3794	# save all maps without fsync, and later call a global sync
		3795	# (which in turn might be very very slow)
		3796	local $USE_FSYNC = 0;
		3797
		3798	cf::sync_job {
		3799	cf::write_runtime_sync; # external watchdog should not bark
		3800
		3801	# use a peculiar iteration method to avoid tripping on perl
		3802	# refcount bugs in for. also avoids problems with players
		3803	# and maps saved/destroyed asynchronously.
		3804	info "emergency_perl_save: begin player save\n";
		3805	for my $login (keys %cf::PLAYER) {
		3806	my $pl = $cf::PLAYER{$login} or next;
		3807	$pl->valid or next;
		3808	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3809	$pl->save;
		3810	}
		3811	info "emergency_perl_save: end player save\n";
		3812
		3813	cf::write_runtime_sync; # external watchdog should not bark
		3814
		3815	info "emergency_perl_save: begin map save\n";
		3816	for my $path (keys %cf::MAP) {
		3817	my $map = $cf::MAP{$path} or next;
		3818	$map->valid or next;
		3819	$map->save;
		3820	}
		3821	info "emergency_perl_save: end map save\n";
		3822
		3823	cf::write_runtime_sync; # external watchdog should not bark
		3824
		3825	info "emergency_perl_save: begin database checkpoint\n";
		3826	BDB::db_env_txn_checkpoint $DB_ENV;
		3827	info "emergency_perl_save: end database checkpoint\n";
		3828
		3829	info "emergency_perl_save: begin write uuid\n";
		3830	write_uuid_sync 1;
		3831	info "emergency_perl_save: end write uuid\n";
		3832
		3833	cf::write_runtime_sync; # external watchdog should not bark
		3834
		3835	trace "emergency_perl_save: syncing database to disk";
		3836	BDB::db_env_txn_checkpoint $DB_ENV;
		3837
		3838	info "emergency_perl_save: starting sync\n";
		3839	IO::AIO::aio_sync sub {
		3840	info "emergency_perl_save: finished sync\n";
		3841	};
		3842
		3843	cf::write_runtime_sync; # external watchdog should not bark
		3844
		3845	trace "emergency_perl_save: flushing outstanding aio requests";
		3846	while (IO::AIO::nreqs || BDB::nreqs) {
		3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3848	}
		3849
		3850	cf::write_runtime_sync; # external watchdog should not bark
		3851	};
		3852
		3853	info "emergency_perl_save: leave\n";
		3854	}
		3855
		3856	sub post_cleanup {
		3857	my ($make_core) = @_;
		3858
		3859	IO::AIO::flush;
		3860
		3861	error Carp::longmess "post_cleanup backtrace"
		3862	if $make_core;
		3863
		3864	my $fh = pidfile;
		3865	unlink $PIDFILE if <$fh> == $$;
		3866	}
		3867
		3868	# a safer delete_package, copied from Symbol
		3869	sub clear_package($) {
		3870	my $pkg = shift;
		3871
		3872	# expand to full symbol table name if needed
		3873	unless ($pkg =~ /^main::.*::$/) {
		3874	$pkg = "main$pkg" if $pkg =~ /^::/;
		3875	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3876	$pkg .= '::' unless $pkg =~ /::$/;
		3877	}
		3878
		3879	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3880	my $stem_symtab = *{$stem}{HASH};
		3881
		3882	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3883	or return;
		3884
		3885	# clear all symbols
		3886	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3887	for my $name (keys %$leaf_symtab) {
		3888	_gv_clear *{"$pkg$name"};
		3889	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3890	}
		3891	}
		3892
2127	sub reload() {	3893	sub do_reload_perl() {
2128	# can/must only be called in main	3894	# can/must only be called in main
2129	if ($Coro::current != $Coro::main) {	3895	unless (in_main) {
2130	warn "can only reload from main coroutine\n";	3896	error "can only reload from main coroutine";
2131	return;	3897	return;
2132	}	3898	}
2133		3899
2134	warn "reloading...";	3900	return if $RELOAD++;
2135		3901
2136	my $guard = freeze_mainloop;	3902	my $t1 = AE::time;
		3903
		3904	while ($RELOAD) {
		3905	cf::get_slot 0.1, -1, "reload_perl";
		3906	info "perl_reload: reloading...";
		3907
		3908	trace "perl_reload: entering sync_job";
		3909
		3910	cf::sync_job {
2137	cf::emergency_save;	3911	#cf::emergency_save;
2138		3912
2139	eval {	3913	trace "perl_reload: cancelling all extension coros";
2140	# if anything goes wrong in here, we should simply crash as we already saved
2141
2142	# cancel all watchers
2143	for (Event::all_watchers) {
2144	$_->cancel if $_->data & WF_AUTOCANCEL;
2145	}
2146
2147	# cancel all extension coros
2148	$_->cancel for values %EXT_CORO;	3914	$_->cancel for values %EXT_CORO;
2149	%EXT_CORO = ();	3915	%EXT_CORO = ();
2150		3916
2151	# unload all extensions	3917	trace "perl_reload: removing commands";
2152	for (@exts) {	3918	%COMMAND = ();
2153	warn "unloading <$_>";
2154	unload_extension $_;
2155	}
2156		3919
2157	# unload all modules loaded from $LIBDIR	3920	trace "perl_reload: removing ext/exti commands";
2158	while (my ($k, $v) = each %INC) {	3921	%EXTCMD = ();
2159	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3922	%EXTICMD = ();
2160		3923
2161	warn "removing <$k>";	3924	trace "perl_reload: unloading/nuking all extensions";
2162	delete $INC{$k};	3925	for my $pkg (@EXTS) {
		3926	trace "... unloading $pkg";
2163		3927
2164	$k =~ s/\.pm$//;
2165	$k =~ s/\//::/g;
2166
2167	if (my $cb = $k->can ("unload_module")) {	3928	if (my $cb = $pkg->can ("unload")) {
		3929	eval {
2168	$cb->();	3930	$cb->($pkg);
		3931	1
		3932	} or error "$pkg unloaded, but with errors: $@";
		3933	}
		3934
		3935	trace "... clearing $pkg";
		3936	clear_package $pkg;
2169	}	3937	}
2170		3938
2171	Symbol::delete_package $k;	3939	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3940	while (my ($k, $v) = each %INC) {
		3941	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3942
		3943	trace "... unloading $k";
		3944	delete $INC{$k};
		3945
		3946	$k =~ s/\.pm$//;
		3947	$k =~ s/\//::/g;
		3948
		3949	if (my $cb = $k->can ("unload_module")) {
		3950	$cb->();
		3951	}
		3952
		3953	clear_package $k;
2172	}	3954	}
2173		3955
2174	# sync database to disk
2175	cf::db_sync;
2176	IO::AIO::flush;
2177
2178	# get rid of safe::, as good as possible	3956	trace "perl_reload: getting rid of safe::, as good as possible";
2179	Symbol::delete_package "safe::$_"	3957	clear_package "safe::$_"
2180	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3958	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2181		3959
2182	# remove register_script_function callbacks	3960	trace "perl_reload: unloading cf.pm \"a bit\"";
2183	# TODO
2184
2185	# unload cf.pm "a bit"
2186	delete $INC{"cf.pm"};	3961	delete $INC{"cf.pm"};
		3962	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2187		3963
2188	# don't, removes xs symbols, too,	3964	# don't, removes xs symbols, too,
2189	# and global variables created in xs	3965	# and global variables created in xs
2190	#Symbol::delete_package __PACKAGE__;	3966	#clear_package __PACKAGE__;
2191		3967
2192	# reload cf.pm	3968	info "perl_reload: unload completed, starting to reload now";
2193	warn "reloading cf.pm";	3969
		3970	trace "perl_reload: reloading cf.pm";
2194	require cf;	3971	require cf;
2195	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3972	cf::_connect_to_perl_1;
2196		3973
2197	# load config and database again	3974	trace "perl_reload: loading config and database again";
2198	cf::cfg_load;	3975	cf::reload_config;
2199	cf::db_load;
2200		3976
2201	# load extensions	3977	trace "perl_reload: loading extensions";
2202	warn "load extensions";
2203	cf::load_extensions;	3978	cf::load_extensions;
2204		3979
2205	# reattach attachments to objects	3980	if ($REATTACH_ON_RELOAD) {
2206	warn "reattach";	3981	trace "perl_reload: reattaching attachments to objects/players";
2207	_global_reattach;	3982	_global_reattach; # objects, sockets
		3983	trace "perl_reload: reattaching attachments to maps";
2208	reattach $_ for values %MAP;	3984	reattach $_ for values %MAP;
		3985	trace "perl_reload: reattaching attachments to players";
		3986	reattach $_ for values %PLAYER;
		3987	}
		3988
		3989	cf::_post_init 1;
		3990
		3991	trace "perl_reload: leaving sync_job";
		3992
		3993	1
		3994	} or do {
		3995	error $@;
		3996	cf::cleanup "perl_reload: error, exiting.";
		3997	};
		3998
		3999	--$RELOAD;
		4000	}
		4001
		4002	$t1 = AE::time - $t1;
		4003	info "perl_reload: completed in ${t1}s\n";
		4004	};
		4005
		4006	our $RELOAD_WATCHER; # used only during reload
		4007
		4008	sub reload_perl() {
		4009	# doing reload synchronously and two reloads happen back-to-back,
		4010	# coro crashes during coro_state_free->destroy here.
		4011
		4012	$RELOAD_WATCHER ||= cf::async {
		4013	Coro::AIO::aio_wait cache_extensions;
		4014
		4015	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4016	do_reload_perl;
		4017	undef $RELOAD_WATCHER;
		4018	};
2209	};	4019	};
2210
2211	if ($@) {
2212	warn $@;
2213	warn "error while reloading, exiting.";
2214	exit 1;
2215	}
2216
2217	warn "reloaded successfully";
2218	};
2219
2220	#############################################################################
2221
2222	unless ($LINK_MAP) {
2223	$LINK_MAP = cf::map::new;
2224
2225	$LINK_MAP->width (41);
2226	$LINK_MAP->height (41);
2227	$LINK_MAP->alloc;
2228	$LINK_MAP->path ("{link}");
2229	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2230	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2231
2232	# dirty hack because... archetypes are not yet loaded
2233	Event->timer (
2234	after => 10,
2235	cb => sub {
2236	$_[0]->w->cancel;
2237
2238	# provide some exits "home"
2239	my $exit = cf::object::new "exit";
2240
2241	$exit->slaying ($EMERGENCY_POSITION->[0]);
2242	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2243	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2244
2245	$LINK_MAP->insert ($exit->clone, 19, 19);
2246	$LINK_MAP->insert ($exit->clone, 19, 20);
2247	$LINK_MAP->insert ($exit->clone, 19, 21);
2248	$LINK_MAP->insert ($exit->clone, 20, 19);
2249	$LINK_MAP->insert ($exit->clone, 20, 21);
2250	$LINK_MAP->insert ($exit->clone, 21, 19);
2251	$LINK_MAP->insert ($exit->clone, 21, 20);
2252	$LINK_MAP->insert ($exit->clone, 21, 21);
2253
2254	$exit->destroy;
2255	});
2256
2257	$LINK_MAP->{deny_save} = 1;
2258	$LINK_MAP->{deny_reset} = 1;
2259
2260	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2261	}	4020	}
2262
2263	register "<global>", __PACKAGE__;
2264		4021
2265	register_command "reload" => sub {	4022	register_command "reload" => sub {
2266	my ($who, $arg) = @_;	4023	my ($who, $arg) = @_;
2267		4024
2268	if ($who->flag (FLAG_WIZ)) {	4025	if ($who->flag (FLAG_WIZ)) {
2269	$who->message ("start of reload.");
2270	reload;
2271	$who->message ("end of reload.");	4026	$who->message ("reloading server.");
		4027	async {
		4028	$Coro::current->{desc} = "perl_reload";
		4029	reload_perl;
		4030	};
2272	}	4031	}
2273	};	4032	};
2274		4033
2275	unshift @INC, $LIBDIR;	4034	#############################################################################
2276		4035
2277	$TICK_WATCHER = Event->timer (	4036	my $bug_warning = 0;
2278	reentrant => 0,	4037
2279	prio => 0,	4038	our @WAIT_FOR_TICK;
2280	at => $NEXT_TICK || $TICK,	4039	our @WAIT_FOR_TICK_BEGIN;
2281	data => WF_AUTOCANCEL,	4040
2282	cb => sub {	4041	sub wait_for_tick() {
		4042	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4043
		4044	my $signal = new Coro::Signal;
		4045	push @WAIT_FOR_TICK, $signal;
		4046	$signal->wait;
		4047	}
		4048
		4049	sub wait_for_tick_begin() {
		4050	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4051
		4052	my $signal = new Coro::Signal;
		4053	push @WAIT_FOR_TICK_BEGIN, $signal;
		4054	$signal->wait;
		4055	}
		4056
		4057	sub tick {
		4058	if ($Coro::current != $Coro::main) {
		4059	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4060	unless ++$bug_warning > 10;
		4061	return;
		4062	}
		4063
2283	cf::server_tick; # one server iteration	4064	cf::server_tick; # one server iteration
2284	$RUNTIME += $TICK;
2285	$NEXT_TICK += $TICK;
2286		4065
2287	# if we are delayed by four ticks or more, skip them all	4066	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2288	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2289		4067
2290	$TICK_WATCHER->at ($NEXT_TICK);	4068	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2291	$TICK_WATCHER->start;	4069	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2292	},	4070	Coro::async_pool {
2293	);	4071	$Coro::current->{desc} = "runtime saver";
2294
2295	IO::AIO::max_poll_time $TICK * 0.2;
2296
2297	Event->io (
2298	fd => IO::AIO::poll_fileno,
2299	poll => 'r',
2300	prio => 5,
2301	data => WF_AUTOCANCEL,
2302	cb => \&IO::AIO::poll_cb,
2303	);
2304
2305	Event->timer (
2306	data => WF_AUTOCANCEL,
2307	after => 0,
2308	interval => 10,
2309	cb => sub {
2310	(Coro::unblock_sub {
2311	write_runtime	4072	write_runtime_sync
2312	or warn "ERROR: unable to write runtime file: $!";	4073	or error "ERROR: unable to write runtime file: $!";
2313	})->();	4074	};
2314	},	4075	}
2315	);	4076
		4077	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4078	$sig->send;
		4079	}
		4080	while (my $sig = shift @WAIT_FOR_TICK) {
		4081	$sig->send;
		4082	}
		4083
		4084	$LOAD = ($NOW - $TICK_START) / $TICK;
		4085	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4086
		4087	if (0) {
		4088	if ($NEXT_TICK) {
		4089	my $jitter = $TICK_START - $NEXT_TICK;
		4090	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4091	debug "jitter $JITTER\n";#d#
		4092	}
		4093	}
		4094	}
		4095
		4096	{
		4097	# configure BDB
		4098
		4099	BDB::min_parallel 16;
		4100	BDB::max_poll_reqs $TICK * 0.1;
		4101	$AnyEvent::BDB::WATCHER->priority (1);
		4102
		4103	unless ($DB_ENV) {
		4104	$DB_ENV = BDB::db_env_create;
		4105	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4106	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4107	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4108	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4109	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4110
		4111	cf::sync_job {
		4112	eval {
		4113	BDB::db_env_open
		4114	$DB_ENV,
		4115	$BDBDIR,
		4116	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4117	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4118	0666;
		4119
		4120	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4121	};
		4122
		4123	cf::cleanup "db_env_open(db): $@" if $@;
		4124	};
		4125	}
		4126
		4127	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4128	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4129	};
		4130	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4131	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4132	};
		4133	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4134	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4135	};
		4136	}
		4137
		4138	{
		4139	# configure IO::AIO
		4140
		4141	IO::AIO::min_parallel 8;
		4142	IO::AIO::max_poll_time $TICK * 0.1;
		4143	undef $AnyEvent::AIO::WATCHER;
		4144	}
		4145
		4146	our $_log_backtrace;
		4147	our $_log_backtrace_last;
		4148
		4149	sub _log_backtrace {
		4150	my ($msg, @addr) = @_;
		4151
		4152	$msg =~ s/\n$//;
		4153
		4154	if ($_log_backtrace_last eq $msg) {
		4155	LOG llevInfo, "[ABT] $msg\n";
		4156	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4157	# limit the # of concurrent backtraces
		4158	} elsif ($_log_backtrace < 2) {
		4159	$_log_backtrace_last = $msg;
		4160	++$_log_backtrace;
		4161	my $perl_bt = Carp::longmess $msg;
		4162	async {
		4163	$Coro::current->{desc} = "abt $msg";
		4164
		4165	my @bt = fork_call {
		4166	@addr = map { sprintf "%x", $_ } @addr;
		4167	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4168	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4169	or die "addr2line: $!";
		4170
		4171	my @funcs;
		4172	my @res = <$fh>;
		4173	chomp for @res;
		4174	while (@res) {
		4175	my ($func, $line) = splice @res, 0, 2, ();
		4176	push @funcs, "[$func] $line";
		4177	}
		4178
		4179	@funcs
		4180	};
		4181
		4182	LOG llevInfo, "[ABT] $perl_bt\n";
		4183	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4184	LOG llevInfo, "[ABT] $_\n" for @bt;
		4185	--$_log_backtrace;
		4186	};
		4187	} else {
		4188	LOG llevInfo, "[ABT] $msg\n";
		4189	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4190	}
		4191	}
		4192
		4193	# load additional modules
		4194	require "cf/$_.pm" for @EXTRA_MODULES;
		4195	cf::_connect_to_perl_2;
2316		4196
2317	END { cf::emergency_save }	4197	END { cf::emergency_save }
2318		4198
2319	1	4199	1
2320		4200

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