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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.124 by root, Tue Jan 2 22:55:05 2007 UTC vs.
Revision 1.542 by root, Wed May 5 09:05:03 2010 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 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	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		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		168
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		187
79	#############################################################################	188	#############################################################################
80		189
81	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
82		191
…		…
89	=item $cf::RUNTIME	198	=item $cf::RUNTIME
90		199
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	201	every server tick.
93		202
94	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		206
96	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
98		211
99	=item $cf::NOW	212	=item $cf::NOW
100		213
101	The time of the last (current) server tick.	214	The time of the last (current) server tick.
102		215
103	=item $cf::TICK	216	=item $cf::TICK
104		217
105	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
106		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
107	=item %cf::CFG	230	=item %cf::CFG
108		231
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	233	from wherever your confdir points to.
111		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
112	=back	253	=back
113		254
114	=cut	255	=cut
115		256
116	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	264	my $msg = join "", @_;
119	utf8::encode $msg;
120		265
121	$msg .= "\n"	266	$msg .= "\n"
122	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
123		268
124	LOG llevError, "cfperl: $msg";	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	270
126	}	271	LOG llevWarn, $msg;
		272	};
		273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
127		287
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	292	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		293	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	294	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		295
135	# we bless all objects into (empty) derived classes to force a method lookup	296	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	297	# within the Safe compartment.
137	for my $pkg (qw(	298	for my $pkg (qw(
138	cf::global cf::attachable	299	cf::global cf::attachable
139	cf::object cf::object::player	300	cf::object cf::object::player
140	cf::client cf::player	301	cf::client cf::player
141	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
142	cf::map cf::party cf::region	304	cf::party cf::region
143	)) {	305	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	307	}
147		308
148	$Event::DIED = sub {	309	$EV::DIED = sub {
149	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
150	};	311	};
151		312
152	my %ext_pkg;	313	#############################################################################
153	my @exts;
154	my @hook;
155		314
156	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
157		316
158	=over 4	317	=over 4
159		318
160	=cut	319	=item dumpval $ref
161		320
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	321	=cut
163		322
		323	sub dumpval {
		324	eval {
		325	local $SIG{__DIE__};
		326	my $d;
		327	if (1) {
		328	$d = new Data::Dumper([$_[0]], ["*var"]);
		329	$d->Terse(1);
		330	$d->Indent(2);
		331	$d->Quotekeys(0);
		332	$d->Useqq(1);
		333	#$d->Bless(...);
		334	$d->Seen($_[1]) if @_ > 1;
		335	$d = $d->Dump();
		336	}
		337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		338	$d
		339	} || "[unable to dump $_[0]: '$@']";
		340	}
		341
164	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
165		343
166	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
167		345
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
176		347
177	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
178		349
179	=cut	350	=cut
180		351
181	sub to_json($) {	352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		353
186	=item my $guard = cf::guard { BLOCK }	354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
187		356
188	Run the given callback when the guard object gets destroyed (useful for	357	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		358
191	You can call C<< ->cancel >> on the guard object to stop the block from	359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	360	but I<before> the server starts ticking again.
193		361
194	=cut	362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
195		364
196	sub guard(&) {	365	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		366
200	sub cf::guard::cancel {	367	sub post_init(&) {
201	${$_[0]} = sub { };	368	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	369	}
207		370
208	=item cf::lock_wait $string	371	=item cf::lock_wait $string
209		372
210	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
211		374
212	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
213		376
214	Wait until the given lock is available and then acquires it and returns	377	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
217	returned.	380	returned.
218		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
219	Lock names should begin with a unique identifier (for example, find_map	385	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	386	uses map_find and cf::map::load uses map_load).
221		387
222	=cut	388	=item $locked = cf::lock_active $string
223		389
224	our %LOCK;	390	Return true if the lock is currently active, i.e. somebody has locked it.
		391
		392	=cut
		393
		394	our $LOCKS = new Coro::SemaphoreSet;
225		395
226	sub lock_wait($) {	396	sub lock_wait($) {
227	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	398	}
235		399
236	sub lock_acquire($) {	400	sub lock_acquire($) {
237	my ($key) = @_;	401	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	402	}
		403
		404	sub lock_active($) {
		405	$LOCKS->count ($_[0]) < 1
		406	}
		407
		408	sub freeze_mainloop {
		409	tick_inhibit_inc;
		410
		411	&Guard::guard (\&tick_inhibit_dec);
		412	}
		413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
		478	}
		479	};
		480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
		494	}
		495
		496	=item cf::async { BLOCK }
		497
		498	Currently the same as Coro::async_pool, meaning you cannot use
		499	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		500	thing you are allowed to do is call C<prio> on it.
		501
		502	=cut
		503
		504	BEGIN { *async = \&Coro::async_pool }
249		505
250	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
251		507
252	The design of crossfire+ requires that the main coro ($Coro::main) is	508	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	509	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		511	acceptable.
255		512
256	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	515	server will be frozen during this time, so the block should either finish
259	fast or be very important.	516	fast or be very important.
…		…
261	=cut	518	=cut
262		519
263	sub sync_job(&) {	520	sub sync_job(&) {
264	my ($job) = @_;	521	my ($job) = @_;
265		522
266	if ($Coro::current == $Coro::main) {	523	if (in_main) {
		524	my $time = AE::time;
		525
267	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
269		528
270	# TODO: use suspend/resume instead	529	#LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	530
272	local $FREEZE = 1;	531	my $freeze_guard = freeze_mainloop;
273		532
274	my $busy = 1;	533	my $busy = 1;
275	my @res;	534	my @res;
276		535
277	(Coro::async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	538	@res = eval { $job->() };
279	warn $@ if $@;	539	error $@ if $@;
280	undef $busy;	540	undef $busy;
281	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
282		542
283	while ($busy) {	543	while ($busy) {
		544	if (Coro::nready) {
284	Coro::cede_notself;	545	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
286	}	548	}
		549	}
		550
		551	my $time = AE::time - $time;
		552
		553	$TICK_START += $time; # do not account sync jobs to server load
287		554
288	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
289	} else {	556	} else {
290	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
291		558
292	$job->()	559	$job->()
293	}	560	}
294	}	561	}
295		562
296	=item $coro = cf::coro { BLOCK }	563	=item $coro = cf::async_ext { BLOCK }
297		564
298	Creates and returns a new coro. This coro is automcatially being canceled	565	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	566	extension calling this is being unloaded.
300		567
301	=cut	568	=cut
302		569
303	sub coro(&) {	570	sub async_ext(&) {
304	my $cb = shift;	571	my $cb = shift;
305		572
306	my $coro; $coro = async {	573	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		574
313	$coro->on_destroy (sub {	575	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	576	delete $EXT_CORO{$coro+0};
315	});	577	});
316	$EXT_CORO{$coro+0} = $coro;	578	$EXT_CORO{$coro+0} = $coro;
317		579
318	$coro	580	$coro
319	}	581	}
320		582
321	sub write_runtime {	583	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		584
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	585	Executes the given code block with the given arguments in a seperate
325	or return;	586	process, returning the results. Everything must be serialisable with
		587	Coro::Storable. May, of course, block. Note that the executed sub may
		588	never block itself or use any form of event handling.
326		589
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	590	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		591
331	aio_fsync $fh	592	sub fork_call(&@) {
332	and return;	593	my ($cb, @args) = @_;
333		594
334	close $fh	595	# we seemingly have to make a local copy of the whole thing,
335	or return;	596	# otherwise perl prematurely frees the stuff :/
		597	# TODO: investigate and fix (likely this will be rather laborious)
336		598
337	aio_rename "$runtime~", $runtime	599	my @res = Coro::Util::fork_eval {
338	and return;	600	reset_signals;
		601	&$cb
		602	}, @args;
339		603
		604	wantarray ? @res : $res[-1]
		605	}
		606
		607	sub objinfo {
340	1	608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
		643	}
		644
		645	=item $value = cf::db_get $family => $key
		646
		647	Returns a single value from the environment database.
		648
		649	=item cf::db_put $family => $key => $value
		650
		651	Stores the given C<$value> in the family. It can currently store binary
		652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
		659	=cut
		660
		661	sub db_table($) {
		662	cf::error "db_get called from main context"
		663	if $Coro::current == $Coro::main;
		664
		665	my ($name) = @_;
		666	my $db = BDB::db_create $DB_ENV;
		667
		668	eval {
		669	$db->set_flags (BDB::CHKSUM);
		670
		671	utf8::encode $name;
		672	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		673	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		674	cf::cleanup "db_open(db): $!" if $!;
		675	};
		676	cf::cleanup "db_open(db): $@" if $@;
		677
		678	$db
		679	}
		680
		681	our $DB;
		682
		683	sub db_init {
		684	$DB ||= db_table "db";
		685	}
		686
		687	sub db_get($$) {
		688	my $key = "$_[0]/$_[1]";
		689
		690	cf::error "db_get called from main context"
		691	if $Coro::current == $Coro::main;
		692
		693	BDB::db_get $DB, undef, $key, my $data;
		694
		695	$! ? ()
		696	: $data
		697	}
		698
		699	sub db_put($$$) {
		700	BDB::dbreq_pri 4;
		701	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		702	}
		703
		704	=item cf::cache $id => [$paths...], $processversion => $process
		705
		706	Generic caching function that returns the value of the resource $id,
		707	caching and regenerating as required.
		708
		709	This function can block.
		710
		711	=cut
		712
		713	sub cache {
		714	my ($id, $src, $processversion, $process) = @_;
		715
		716	my $meta =
		717	join "\x00",
		718	$processversion,
		719	map {
		720	aio_stat $_
		721	and Carp::croak "$_: $!";
		722
		723	($_, (stat _)[7,9])
		724	} @$src;
		725
		726	my $dbmeta = db_get cache => "$id/meta";
		727	if ($dbmeta ne $meta) {
		728	# changed, we may need to process
		729
		730	my @data;
		731	my $md5;
		732
		733	for (0 .. $#$src) {
		734	0 <= aio_load $src->[$_], $data[$_]
		735	or Carp::croak "$src->[$_]: $!";
		736	}
		737
		738	# if processing is expensive, check
		739	# checksum first
		740	if (1) {
		741	$md5 =
		742	join "\x00",
		743	$processversion,
		744	map {
		745	cf::cede_to_tick;
		746	($src->[$_], Digest::MD5::md5_hex $data[$_])
		747	} 0.. $#$src;
		748
		749
		750	my $dbmd5 = db_get cache => "$id/md5";
		751	if ($dbmd5 eq $md5) {
		752	db_put cache => "$id/meta", $meta;
		753
		754	return db_get cache => "$id/data";
		755	}
		756	}
		757
		758	my $t1 = Time::HiRes::time;
		759	my $data = $process->(\@data);
		760	my $t2 = Time::HiRes::time;
		761
		762	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		763
		764	db_put cache => "$id/data", $data;
		765	db_put cache => "$id/md5" , $md5;
		766	db_put cache => "$id/meta", $meta;
		767
		768	return $data;
		769	}
		770
		771	db_get cache => "$id/data"
		772	}
		773
		774	=item cf::datalog type => key => value, ...
		775
		776	Log a datalog packet of the given type with the given key-value pairs.
		777
		778	=cut
		779
		780	sub datalog($@) {
		781	my ($type, %kv) = @_;
		782	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	783	}
342		784
343	=back	785	=back
344		786
345	=cut	787	=cut
346		788
347	#############################################################################	789	#############################################################################
348		790
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	791	=head2 ATTACHABLE OBJECTS
470		792
471	Many objects in crossfire are so-called attachable objects. That means you can	793	Many objects in deliantra are so-called attachable objects. That means you can
472	attach callbacks/event handlers (a collection of which is called an "attachment")	794	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
474		796
475	In the following description, CLASS can be any of C<global>, C<object>	797	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	798	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	799	Deliantra).
478		800
479	=over 4	801	=over 4
480		802
481	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
482		804
…		…
526	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
527		849
528	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
530		852
531	Some classes such as crossfire maps and objects can specify attachments	853	Some classes such as deliantra maps and objects can specify attachments
532	that are attached at load/instantiate time, thus the need for a name.	854	that are attached at load/instantiate time, thus the need for a name.
533		855
534	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
535		857
536	=over 4	858	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	918	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	919	our @CB_MAP = ();
598		920
599	my %attachment;	921	my %attachment;
600		922
		923	sub cf::attachable::thawer_merge {
		924	# simply override everything except _meta
		925	local $_[0]{_meta};
		926	%{$_[0]} = %{$_[1]};
		927	}
		928
601	sub _attach_cb($$$$) {	929	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	930	my ($registry, $event, $prio, $cb) = @_;
603		931
604	use sort 'stable';	932	use sort 'stable';
605		933
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	967	$registry = $CB_TYPE[$object_type] ||= [];
640		968
641	} elsif ($type eq "subtype") {	969	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	970	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	971	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	972	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		973
646	} elsif ($type eq "package") {	974	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	975	my $pkg = shift @arg;
648		976
649	while (my ($name, $id) = each %cb_id) {	977	while (my ($name, $id) = each %cb_id) {
…		…
654		982
655	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
656	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
657		985
658	} elsif (ref $type) {	986	} elsif (ref $type) {
659	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
660		988
661	} else {	989	} else {
662	shift @arg;	990	shift @arg;
663	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
664	}	992	}
665	}	993	}
666	}	994	}
667		995
668	sub _object_attach {	996	sub _object_attach {
…		…
678	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
679	}	1007	}
680		1008
681	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
682	} else {	1010	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
684	}	1012	}
685		1013
686	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
687	}	1015	}
688		1016
…		…
690	if (ref $_[0]) {	1018	if (ref $_[0]) {
691	_object_attach @_;	1019	_object_attach @_;
692	} else {	1020	} else {
693	_attach shift->_attach_registry, @_;	1021	_attach shift->_attach_registry, @_;
694	}	1022	}
		1023	_recalc_want;
695	};	1024	};
696		1025
697	# all those should be optimised	1026	# all those should be optimised
698	sub cf::attachable::detach {	1027	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1028	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1031	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1032	reattach ($obj);
704	} else {	1033	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1034	Carp::croak "cannot, currently, detach class attachments";
706	}	1035	}
		1036	_recalc_want;
707	};	1037	};
708		1038
709	sub cf::attachable::attached {	1039	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1040	my ($obj, $name) = @_;
711		1041
…		…
726	";	1056	";
727	die if $@;	1057	die if $@;
728	}	1058	}
729		1059
730	our $override;	1060	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1061	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		1062
733	sub override {	1063	sub override {
734	$override = 1;	1064	$override = 1;
735	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
736	}	1066	}
737		1067
738	sub do_invoke {	1068	sub do_invoke {
739	my $event = shift;	1069	my $event = shift;
740	my $callbacks = shift;	1070	my $callbacks = shift;
741		1071
742	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
743		1073
744	local $override;	1074	local $override;
745		1075
746	for (@$callbacks) {	1076	for (@$callbacks) {
747	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
748		1078
749	if ($@) {	1079	if ($@) {
750	warn "$@";
751	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
752	override;	1081	override;
753	}	1082	}
754		1083
755	return 1 if $override;	1084	return 1 if $override;
756	}	1085	}
757		1086
758	0	1087	0
759	}	1088	}
760		1089
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1091
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1093
765	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
766		1095
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1096	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	1097	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1099
771	=back	1100	=back
772		1101
773	=cut	1102	=cut
774		1103
775	#############################################################################	1104	#############################################################################
776	# object support	1105	# object support
		1106
		1107	sub _object_equal($$);
		1108	sub _object_equal($$) {
		1109	my ($a, $b) = @_;
		1110
		1111	return 0 unless (ref $a) eq (ref $b);
		1112
		1113	if ("HASH" eq ref $a) {
		1114	my @ka = keys %$a;
		1115	my @kb = keys %$b;
		1116
		1117	return 0 if @ka != @kb;
		1118
		1119	for (0 .. $#ka) {
		1120	return 0 unless $ka[$_] eq $kb[$_];
		1121	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1122	}
		1123
		1124	} elsif ("ARRAY" eq ref $a) {
		1125
		1126	return 0 if @$a != @$b;
		1127
		1128	for (0 .. $#$a) {
		1129	return 0 unless _object_equal $a->[$_], $b->[$_];
		1130	}
		1131
		1132	} elsif ($a ne $b) {
		1133	return 0;
		1134	}
		1135
		1136	1
		1137	}
		1138
		1139	our $SLOW_MERGES;#d#
		1140	sub _can_merge {
		1141	my ($ob1, $ob2) = @_;
		1142
		1143	++$SLOW_MERGES;#d#
		1144
		1145	# we do the slow way here
		1146	return _object_equal $ob1, $ob2
		1147	}
777		1148
778	sub reattach {	1149	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1151	my ($obj) = @_;
		1152
		1153	# no longer needed after getting rid of delete_package?
		1154	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1155
782	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
783		1157
784	@$registry = ();	1158	@$registry = ();
785		1159
…		…
790	for (@$attach) {	1164	for (@$attach) {
791	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
792	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
793	}	1167	}
794	} else {	1168	} else {
795	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
796	}	1170	}
797	}	1171	}
798	}	1172	}
799		1173
800	cf::attachable->attach (	1174	cf::attachable->attach (
801	prio => -1000000,	1175	prio => -1000000,
802	on_instantiate => sub {	1176	on_instantiate => sub {
803	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
804		1178
805	$data = from_json $data;	1179	$data = decode_json $data;
806		1180
807	for (@$data) {	1181	for (@$data) {
808	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
809		1183
810	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1200	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
828		1202
829	sync_job {	1203	sync_job {
830	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
833		1209
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1212	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1213	if ($cf::USE_FSYNC) {
		1214	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;
837	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
838	close $fh;	1217	aio_close $fh;
839		1218
840	if (@$objs) {	1219	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1220	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1223	aio_write $fh, 0, (length $data), $data, 0;
		1224	if ($cf::USE_FSYNC) {
		1225	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;
845	aio_fsync $fh;	1226	aio_fsync $fh;
		1227	}
846	close $fh;	1228	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
848	}	1230	}
849	} else {	1231	} else {
850	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
851	}	1233	}
852		1234
853	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1239	} else {
855	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
856	}	1241	}
857	} else {	1242	} else {
858	aio_unlink $filename;	1243	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
860	}	1245	}
861	}	1246	};
862	}	1247	}
863		1248
864	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
866		1251
…		…
878	or return;	1263	or return;
879		1264
880	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
882	or return;	1267	or return;
		1268
883	$av = eval { (Storable::thaw $av)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
884	}	1271	}
885		1272
		1273	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1274	trace sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1275	$decname, length $data, scalar @{$av || []}
		1276	if $VERBOSE_IO;
		1277
888	return ($data, $av);	1278	($data, $av)
889	}	1279	}
		1280
		1281	=head2 COMMAND CALLBACKS
		1282
		1283	=over 4
		1284
		1285	=cut
890		1286
891	#############################################################################	1287	#############################################################################
892	# command handling &c	1288	# command handling &c
893		1289
894	=item cf::register_command $name => \&callback($ob,$args);	1290	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1304	}
909		1305
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1307
912	Register a callbackf ro execution when the client sends an extcmd packet.	1308	Register a callback for execution when the client sends an (synchronous)
		1309	extcmd packet. Ext commands will be processed in the order they are
		1310	received by the server, like other user commands. The first argument is
		1311	the logged-in player. Ext commands can only be processed after a player
		1312	has logged in successfully.
913		1313
914	If the callback returns something, it is sent back as if reply was being	1314	If the callback returns something, it is sent back as if reply was being
915	called.	1315	called.
916		1316
		1317	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1318
		1319	Register a callback for execution when the client sends an (asynchronous)
		1320	exticmd packet. Exti commands are processed by the server as soon as they
		1321	are received, i.e. out of order w.r.t. other commands. The first argument
		1322	is a client socket. Exti commands can be received anytime, even before
		1323	log-in.
		1324
		1325	If the callback returns something, it is sent back as if reply was being
		1326	called.
		1327
917	=cut	1328	=cut
918		1329
919	sub register_extcmd {	1330	sub register_extcmd {
920	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
921		1332
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1333	$EXTCMD{$name} = $cb;
926	}	1334	}
		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
927		1343
928	cf::player->attach (	1344	cf::player->attach (
929	on_command => sub {	1345	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
931		1347
932	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
933	or return;	1349	or return;
934		1350
…		…
939	cf::override;	1355	cf::override;
940	},	1356	},
941	on_extcmd => sub {	1357	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
943		1359
944	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1361
946	if (ref $msg) {	1362	if (ref $msg) {
		1363	my ($type, $reply, @payload) =
		1364	"ARRAY" eq ref $msg
		1365	? @$msg
		1366	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1367
		1368	my @reply;
		1369
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
952	} else {	1377	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1379	}
955		1380
956	cf::override;	1381	cf::override;
957	},	1382	},
958	);	1383	);
959		1384
960	sub register {	1385	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1386	sub cache_extensions {
967	my ($path) = @_;	1387	my $grp = IO::AIO::aio_group;
968		1388
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1390	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1391	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974
975	warn "loading '$path' into '$pkg'\n";
976
977	open my $fh, "<:utf8", $path
978	or die "$path: $!";
979
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }
1009
1010	# remove commands
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}	1392	}
1019	}	1393	};
1020		1394
1021	# remove extcmds	1395	$grp
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	1396	}
1035		1397
1036	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
		1401	cf::sync_job {
		1402	my %todo;
		1403
1037	for my $ext (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1405	next unless -r $path;
1039	eval {	1406
1040	load_extension $ext;	1407	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1408	my $base = $1;
		1409	my $pkg = $1;
		1410	$pkg =~ s/[^[:word:]]/_/g;
		1411	$pkg = "ext::$pkg";
		1412
		1413	open my $fh, "<:utf8", $path
		1414	or die "$path: $!";
		1415
		1416	my $source = do { local $/; <$fh> };
		1417
		1418	my %ext = (
		1419	path => $path,
		1420	base => $base,
		1421	pkg => $pkg,
		1422	);
		1423
		1424	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1425	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1426
		1427	$ext{source} =
		1428	"package $pkg; use common::sense;\n"
		1429	. "#line 1 \"$path\"\n{\n"
		1430	. $source
		1431	. "\n};\n1";
		1432
		1433	$todo{$base} = \%ext;
		1434	}
		1435
		1436	my $pass = 0;
		1437	my %done;
		1438	while (%todo) {
		1439	my $progress;
		1440
		1441	++$pass;
		1442
		1443	ext:
		1444	while (my ($k, $v) = each %todo) {
		1445	for (split /,\s*/, $v->{meta}{depends}) {
		1446	next ext
		1447	unless exists $done{$_};
		1448	}
		1449
		1450	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1451
		1452	my $active = eval $v->{source};
		1453
		1454	if (length $@) {
		1455	error "$v->{path}: $@\n";
		1456
		1457	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1458	if exists $v->{meta}{mandatory};
		1459
		1460	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1461	delete $todo{$k};
		1462	} else {
		1463	$done{$k} = delete $todo{$k};
		1464	push @EXTS, $v->{pkg};
		1465	$progress = 1;
		1466
		1467	info "$v->{base}: extension inactive.\n"
		1468	unless $active;
		1469	}
1041	1	1470	}
1042	} or warn "$ext not loaded: $@";	1471
		1472	unless ($progress) {
		1473	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1474
		1475	while (my ($k, $v) = each %todo) {
		1476	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1477	if exists $v->{meta}{mandatory};
		1478	}
		1479	}
		1480	}
1043	}	1481	};
1044	}	1482	}
1045		1483
1046	#############################################################################	1484	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1485
1049	*cf::mapsupport::on_clean = sub {	1486	=back
		1487
		1488	=head2 CORE EXTENSIONS
		1489
		1490	Functions and methods that extend core deliantra objects.
		1491
		1492	=cut
		1493
		1494	package cf::player;
		1495
		1496	use Coro::AIO;
		1497
		1498	=head3 cf::player
		1499
		1500	=over 4
		1501
		1502	=item cf::player::num_playing
		1503
		1504	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1505
		1506	=cut
		1507
		1508	sub num_playing {
		1509	scalar grep
		1510	$_->ob->map
		1511	&& !$_->hidden
		1512	&& !$_->ob->flag (cf::FLAG_WIZ),
		1513	cf::player::list
		1514	}
		1515
		1516	=item cf::player::find $login
		1517
		1518	Returns the given player object, loading it if necessary (might block).
		1519
		1520	=cut
		1521
		1522	sub playerdir($) {
		1523	"$PLAYERDIR/"
		1524	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1525	}
		1526
		1527	sub path($) {
		1528	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1529
		1530	(playerdir $login) . "/playerdata"
		1531	}
		1532
		1533	sub find_active($) {
		1534	$cf::PLAYER{$_[0]}
		1535	and $cf::PLAYER{$_[0]}->active
		1536	and $cf::PLAYER{$_[0]}
		1537	}
		1538
		1539	sub exists($) {
1050	my ($map) = @_;	1540	my ($login) = @_;
1051		1541
1052	my $path = $map->tmpname;	1542	$cf::PLAYER{$login}
1053	defined $path or return;	1543	or !aio_stat path $login
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}	1544	}
1066		1545
1067	# TODO: compatibility cruft, remove when no longer needed	1546	sub find($) {
		1547	return $cf::PLAYER{$_[0]} || do {
		1548	my $login = $_[0];
		1549
		1550	my $guard = cf::lock_acquire "user_find:$login";
		1551
		1552	$cf::PLAYER{$_[0]} || do {
		1553	# rename old playerfiles to new ones
		1554	#TODO: remove when no longer required
		1555	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1556	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1557	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1558	aio_unlink +(playerdir $login) . "/$login.pl";
		1559
		1560	my $f = new_from_file cf::object::thawer path $login
		1561	or return;
		1562
		1563	my $pl = cf::player::load_pl $f
		1564	or return;
		1565
		1566	local $cf::PLAYER_LOADING{$login} = $pl;
		1567	$f->resolve_delayed_derefs;
		1568	$cf::PLAYER{$login} = $pl
		1569	}
		1570	}
		1571	}
		1572
1068	cf::player->attach (	1573	cf::player->attach (
1069	on_load => sub {	1574	on_load => sub {
1070	my ($pl, $path) = @_;	1575	my ($pl, $path) = @_;
1071		1576
1072	for my $o (all_objects $pl->ob) {	1577	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1578	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1579
1076	%$o = %{ Storable::thaw pack "H*", $value };	1580	$pl->ob->current_weapon ($slots->[0]);
1077	}	1581	$pl->combat_ob ($slots->[1]);
1078	}	1582	$pl->ranged_ob ($slots->[2]);
1079	},	1583	},
1080	);	1584	);
1081		1585
1082	#############################################################################	1586	sub save($) {
		1587	my ($pl) = @_;
1083		1588
1084	=head2 CORE EXTENSIONS	1589	return if $pl->{deny_save};
1085		1590
1086	Functions and methods that extend core crossfire objects.	1591	my $path = path $pl;
		1592	my $guard = cf::lock_acquire "user_save:$path";
1087		1593
1088	=head3 cf::player	1594	return if $pl->{deny_save};
		1595
		1596	aio_mkdir playerdir $pl, 0770;
		1597	$pl->{last_save} = $cf::RUNTIME;
		1598
		1599	cf::get_slot 0.01;
		1600
		1601	# save slots, to be restored later
		1602	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1603
		1604	$pl->save_pl ($path);
		1605	cf::cede_to_tick;
		1606	}
		1607
		1608	sub new($) {
		1609	my ($login) = @_;
		1610
		1611	my $self = create;
		1612
		1613	$self->ob->name ($login);
		1614	$self->{deny_save} = 1;
		1615
		1616	$cf::PLAYER{$login} = $self;
		1617
		1618	$self
		1619	}
		1620
		1621	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1622
		1623	=cut
		1624
		1625	sub send_msg {
		1626	my $ns = shift->ns
		1627	or return;
		1628	$ns->send_msg (@_);
		1629	}
		1630
		1631	=item $pl->quit_character
		1632
		1633	Nukes the player without looking back. If logged in, the connection will
		1634	be destroyed. May block for a long time.
		1635
		1636	=cut
		1637
		1638	sub quit_character {
		1639	my ($pl) = @_;
		1640
		1641	my $name = $pl->ob->name;
		1642
		1643	$pl->{deny_save} = 1;
		1644	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1645
		1646	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1647	$pl->deactivate;
		1648	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1649	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1650	$pl->ns->destroy if $pl->ns;
		1651
		1652	my $path = playerdir $pl;
		1653	my $temp = "$path~$cf::RUNTIME~deleting~";
		1654	aio_rename $path, $temp;
		1655	delete $cf::PLAYER{$pl->ob->name};
		1656	$pl->destroy;
		1657
		1658	my $prefix = qr<^~\Q$name\E/>;
		1659
		1660	# nuke player maps
		1661	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1662
		1663	IO::AIO::aio_rmtree $temp;
		1664	}
		1665
		1666	=item $pl->kick
		1667
		1668	Kicks a player out of the game. This destroys the connection.
		1669
		1670	=cut
		1671
		1672	sub kick {
		1673	my ($pl, $kicker) = @_;
		1674
		1675	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1676	$pl->killer ("kicked");
		1677	$pl->ns->destroy;
		1678	}
		1679
		1680	=item cf::player::list_logins
		1681
		1682	Returns am arrayref of all valid playernames in the system, can take a
		1683	while and may block, so not sync_job-capable, ever.
		1684
		1685	=cut
		1686
		1687	sub list_logins {
		1688	my $dirs = aio_readdir $PLAYERDIR
		1689	or return [];
		1690
		1691	my @logins;
		1692
		1693	for my $login (@$dirs) {
		1694	my $path = path $login;
		1695
		1696	# a .pst is a dead give-away for a valid player
		1697	# if no pst file found, open and chekc for blocked users
		1698	if (aio_stat "$path.pst") {
		1699	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1700	aio_read $fh, 0, 512, my $buf, 0 or next;
		1701	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1702	}
		1703
		1704	utf8::decode $login;
		1705	push @logins, $login;
		1706	}
		1707
		1708	\@logins
		1709	}
		1710
		1711	=item $player->maps
		1712
		1713	=item cf::player::maps $login
		1714
		1715	Returns an arrayref of map paths that are private for this
		1716	player. May block.
		1717
		1718	=cut
		1719
		1720	sub maps($) {
		1721	my ($pl) = @_;
		1722
		1723	$pl = ref $pl ? $pl->ob->name : $pl;
		1724
		1725	my $files = aio_readdir playerdir $pl
		1726	or return;
		1727
		1728	my @paths;
		1729
		1730	for (@$files) {
		1731	utf8::decode $_;
		1732	next if /\.(?:pl|pst)$/;
		1733	next unless /^$PATH_SEP/o;
		1734
		1735	push @paths, cf::map::normalise "~$pl/$_";
		1736	}
		1737
		1738	\@paths
		1739	}
		1740
		1741	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1742
		1743	Expand deliantra pod fragments into protocol xml.
		1744
		1745	=item $player->ext_reply ($msgid, @msg)
		1746
		1747	Sends an ext reply to the player.
		1748
		1749	=cut
		1750
		1751	sub ext_reply($$@) {
		1752	my ($self, $id, @msg) = @_;
		1753
		1754	$self->ns->ext_reply ($id, @msg)
		1755	}
		1756
		1757	=item $player->ext_msg ($type, @msg)
		1758
		1759	Sends an ext event to the client.
		1760
		1761	=cut
		1762
		1763	sub ext_msg($$@) {
		1764	my ($self, $type, @msg) = @_;
		1765
		1766	$self->ns->ext_msg ($type, @msg);
		1767	}
		1768
		1769	=head3 cf::region
1089		1770
1090	=over 4	1771	=over 4
1091		1772
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1773	=cut
1097		1774
1098	sub cf::player::exists($) {	1775	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1776
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1777	=item cf::region::find_by_path $path
1104		1778
1105	Sends an ext reply to the player.	1779	Tries to decuce the likely region for a map knowing only its path.
1106		1780
1107	=cut	1781	=cut
1108		1782
1109	sub cf::player::ext_reply($$$%) {	1783	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1784	my ($path) = @_;
1111		1785
1112	$msg{msgid} = $id;	1786	$path =~ s/^~[^\/]*//; # skip ~login
1113		1787
1114	$self->send ("ext " . to_json \%msg);	1788	my ($match, $specificity);
		1789
		1790	for my $region (list) {
		1791	if ($region->{match} && $path =~ $region->{match}) {
		1792	($match, $specificity) = ($region, $region->specificity)
		1793	if $region->specificity > $specificity;
		1794	}
		1795	}
		1796
		1797	$match
1115	}	1798	}
1116		1799
1117	=back	1800	=back
1118
1119		1801
1120	=head3 cf::map	1802	=head3 cf::map
1121		1803
1122	=over 4	1804	=over 4
1123		1805
…		…
1126	package cf::map;	1808	package cf::map;
1127		1809
1128	use Fcntl;	1810	use Fcntl;
1129	use Coro::AIO;	1811	use Coro::AIO;
1130		1812
		1813	use overload
		1814	'""' => \&as_string,
		1815	fallback => 1;
		1816
1131	our $MAX_RESET = 7200;	1817	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1818	our $DEFAULT_RESET = 3000;
1133		1819
1134	sub generate_random_map {	1820	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1821	my ($self, $rmp) = @_;
		1822
		1823	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1824
1137	# mit "rum" bekleckern, nicht	1825	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1826	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1827	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1828	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1829	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1830	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1831	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1832	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1833	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1834	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1835	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1836	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1837	(cf::region::find $rmp->{region}), $rmp->{custom}
		1838	)
1151	}	1839	}
1152		1840
1153	# and all this just because we cannot iterate over	1841	=item cf::map->register ($regex, $prio)
1154	# all maps in C++...
1155	sub change_all_map_light {
1156	my ($change) = @_;
1157		1842
1158	$_->change_map_light ($change)	1843	Register a handler for the map path matching the given regex at the
1159	for grep $_->outdoor, values %cf::MAP;	1844	givne priority (higher is better, built-in handlers have priority 0, the
1160	}	1845	default).
1161		1846
1162	sub try_load_header($) {	1847	=cut
		1848
		1849	sub register {
		1850	my (undef, $regex, $prio) = @_;
		1851	my $pkg = caller;
		1852
		1853	push @{"$pkg\::ISA"}, __PACKAGE__;
		1854
		1855	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1856	}
		1857
		1858	# also paths starting with '/'
		1859	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1860
		1861	sub thawer_merge {
		1862	my ($self, $merge) = @_;
		1863
		1864	# we have to keep some variables in memory intact
		1865	local $self->{path};
		1866	local $self->{load_path};
		1867
		1868	$self->SUPER::thawer_merge ($merge);
		1869	}
		1870
		1871	sub normalise {
1163	my ($path) = @_;	1872	my ($path, $base) = @_;
		1873
		1874	$path = "$path"; # make sure its a string
		1875
		1876	$path =~ s/\.map$//;
		1877
		1878	# map plan:
		1879	#
		1880	# /! non-realised random map exit (special hack!)
		1881	# {... are special paths that are not being touched
		1882	# ?xxx/... are special absolute paths
		1883	# ?random/... random maps
		1884	# /... normal maps
		1885	# ~user/... per-player map of a specific user
		1886
		1887	$path =~ s/$PATH_SEP/\//go;
		1888
		1889	# treat it as relative path if it starts with
		1890	# something that looks reasonable
		1891	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1892	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1893
		1894	$base =~ s{[^/]+/?$}{};
		1895	$path = "$base/$path";
		1896	}
		1897
		1898	for ($path) {
		1899	redo if s{//}{/};
		1900	redo if s{/\.?/}{/};
		1901	redo if s{/[^/]+/\.\./}{/};
		1902	}
		1903
		1904	$path
		1905	}
		1906
		1907	sub new_from_path {
		1908	my (undef, $path, $base) = @_;
		1909
		1910	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1911
		1912	$path = normalise $path, $base;
		1913
		1914	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1915	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1916	my $self = bless cf::map::new, $pkg;
		1917	$self->{path} = $path; $self->path ($path);
		1918	$self->init; # pass $1 etc.
		1919	return $self;
		1920	}
		1921	}
		1922
		1923	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1924	()
		1925	}
		1926
		1927	sub init {
		1928	my ($self) = @_;
		1929
		1930	$self
		1931	}
		1932
		1933	sub as_string {
		1934	my ($self) = @_;
		1935
		1936	"$self->{path}"
		1937	}
		1938
		1939	# the displayed name, this is a one way mapping
		1940	sub visible_name {
		1941	&as_string
		1942	}
		1943
		1944	# the original (read-only) location
		1945	sub load_path {
		1946	my ($self) = @_;
		1947
		1948	"$MAPDIR/$self->{path}.map"
		1949	}
		1950
		1951	# the temporary/swap location
		1952	sub save_path {
		1953	my ($self) = @_;
		1954
		1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1956	"$TMPDIR/$path.map"
		1957	}
		1958
		1959	# the unique path, undef == no special unique path
		1960	sub uniq_path {
		1961	my ($self) = @_;
		1962
		1963	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1964	"$UNIQUEDIR/$path"
		1965	}
		1966
		1967	sub decay_objects {
		1968	my ($self) = @_;
		1969
		1970	return if $self->{deny_reset};
		1971
		1972	$self->do_decay_objects;
		1973	}
		1974
		1975	sub unlink_save {
		1976	my ($self) = @_;
		1977
		1978	utf8::encode (my $save = $self->save_path);
		1979	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1980	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1981	}
		1982
		1983	sub load_header_from($) {
		1984	my ($self, $path) = @_;
1164		1985
1165	utf8::encode $path;	1986	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1987	my $f = new_from_file cf::object::thawer $path
1167	or return;	1988	or return;
1168		1989
1169	my $map = cf::map::new	1990	$self->_load_header ($f)
1170	or return;	1991	or return;
1171		1992
1172	$map->load_header ($path)	1993	local $MAP_LOADING{$self->{path}} = $self;
		1994	$f->resolve_delayed_derefs;
		1995
		1996	$self->{load_path} = $path;
		1997
		1998	1
		1999	}
		2000
		2001	sub load_header_orig {
		2002	my ($self) = @_;
		2003
		2004	$self->load_header_from ($self->load_path)
		2005	}
		2006
		2007	sub load_header_temp {
		2008	my ($self) = @_;
		2009
		2010	$self->load_header_from ($self->save_path)
		2011	}
		2012
		2013	sub prepare_temp {
		2014	my ($self) = @_;
		2015
		2016	$self->last_access ((delete $self->{last_access})
		2017	|| $cf::RUNTIME); #d#
		2018	# safety
		2019	$self->{instantiate_time} = $cf::RUNTIME
		2020	if $self->{instantiate_time} > $cf::RUNTIME;
		2021	}
		2022
		2023	sub prepare_orig {
		2024	my ($self) = @_;
		2025
		2026	$self->{load_original} = 1;
		2027	$self->{instantiate_time} = $cf::RUNTIME;
		2028	$self->last_access ($cf::RUNTIME);
		2029	$self->instantiate;
		2030	}
		2031
		2032	sub load_header {
		2033	my ($self) = @_;
		2034
		2035	if ($self->load_header_temp) {
		2036	$self->prepare_temp;
		2037	} else {
		2038	$self->load_header_orig
1173	or return;	2039	or return;
		2040	$self->prepare_orig;
		2041	}
1174		2042
1175	$map->{load_path} = $path;	2043	$self->{deny_reset} = 1
		2044	if $self->no_reset;
1176		2045
1177	$map	2046	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	2047	unless $self->default_region;
1179		2048
		2049	1
		2050	}
		2051
		2052	sub find;
1180	sub find_map {	2053	sub find {
1181	my ($path, $origin) = @_;	2054	my ($path, $origin) = @_;
1182		2055
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	2056	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		2057
1188	cf::lock_wait "map_find:$key";	2058	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1189
1190	$cf::MAP{$key} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	2059	my $guard2 = cf::lock_acquire "map_find:$path";
1192		2060
1193	# do it the slow way	2061	$cf::MAP{$path} || do {
1194	my $map = try_load_header $path->save_path;	2062	my $map = new_from_path cf::map $path
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	2063	or return;
1208		2064
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2065	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		2066
1222	if ($map->should_reset) {	2067	$map->load_header
		2068	or return;
		2069
		2070	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2071	# doing this can freeze the server in a sync job, obviously
		2072	#$cf::WAIT_FOR_TICK->wait;
		2073	undef $guard2;
		2074	undef $guard1;
1223	$map->reset;	2075	$map->reset;
1224	undef $guard;	2076	return find $path;
1225	$map = cf::map::find_map ($path)
1226	or return;
1227	}	2077	}
1228		2078
1229	$cf::MAP{$key} = $map	2079	$cf::MAP{$path} = $map
1230	}	2080	}
1231	}	2081	}
		2082
		2083	sub pre_load { }
		2084	#sub post_load { } # XS
1232		2085
1233	sub load {	2086	sub load {
1234	my ($self) = @_;	2087	my ($self) = @_;
1235		2088
		2089	local $self->{deny_reset} = 1; # loading can take a long time
		2090
1236	my $path = $self->{path};	2091	my $path = $self->{path};
		2092
		2093	{
1237	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2094	my $guard = cf::lock_acquire "map_data:$path";
1238		2095
		2096	return unless $self->valid;
1239	return if $self->in_memory != cf::MAP_SWAPPED;	2097	return unless $self->in_memory == cf::MAP_SWAPPED;
1240		2098
1241	$self->in_memory (cf::MAP_LOADING);	2099	$self->in_memory (cf::MAP_LOADING);
1242		2100
1243	$self->alloc;	2101	$self->alloc;
1244	$self->load_objects ($self->{load_path}, 1)	2102
		2103	$self->pre_load;
		2104	cf::cede_to_tick;
		2105
		2106	my $f = new_from_file cf::object::thawer $self->{load_path};
		2107	$f->skip_block;
		2108	$self->_load_objects ($f)
1245	or return;	2109	or return;
1246		2110
1247	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2111	$self->post_load_original
1248	if delete $self->{load_original};	2112	if delete $self->{load_original};
1249		2113
1250	if (my $uniq = $path->uniq_path) {	2114	if (my $uniq = $self->uniq_path) {
1251	utf8::encode $uniq;	2115	utf8::encode $uniq;
1252	if (aio_open $uniq, O_RDONLY, 0) {	2116	unless (aio_stat $uniq) {
		2117	if (my $f = new_from_file cf::object::thawer $uniq) {
1253	$self->clear_unique_items;	2118	$self->clear_unique_items;
1254	$self->load_objects ($uniq, 0);	2119	$self->_load_objects ($f);
		2120	$f->resolve_delayed_derefs;
		2121	}
1255	}	2122	}
1256	}	2123	}
1257		2124
		2125	$f->resolve_delayed_derefs;
		2126
		2127	cf::cede_to_tick;
1258	# now do the right thing for maps	2128	# now do the right thing for maps
1259	$self->link_multipart_objects;	2129	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	2130	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	2131	unless $self->difficulty;
		2132	cf::cede_to_tick;
		2133
		2134	unless ($self->{deny_activate}) {
		2135	$self->decay_objects;
		2136	$self->fix_auto_apply;
		2137	$self->update_buttons;
		2138	cf::cede_to_tick;
1271	$self->activate;	2139	$self->activate;
1272	}	2140	}
1273		2141
		2142	$self->{last_save} = $cf::RUNTIME;
		2143	$self->last_access ($cf::RUNTIME);
		2144
1274	$self->in_memory (cf::MAP_IN_MEMORY);	2145	$self->in_memory (cf::MAP_ACTIVE);
1275	}	2146	}
1276		2147
1277	sub load_map_sync {	2148	$self->post_load;
		2149	}
		2150
		2151	# customize the map for a given player, i.e.
		2152	# return the _real_ map. used by e.g. per-player
		2153	# maps to change the path to ~playername/mappath
		2154	sub customise_for {
		2155	my ($self, $ob) = @_;
		2156
		2157	return find "~" . $ob->name . "/" . $self->{path}
		2158	if $self->per_player;
		2159
		2160	# return find "?party/" . $ob->name . "/" . $self->{path}
		2161	# if $self->per_party;
		2162
		2163	$self
		2164	}
		2165
		2166	# find and load all maps in the 3x3 area around a map
		2167	sub load_neighbours {
		2168	my ($map) = @_;
		2169
		2170	my @neigh; # diagonal neighbours
		2171
		2172	for (0 .. 3) {
		2173	my $neigh = $map->tile_path ($_)
		2174	or next;
		2175	$neigh = find $neigh, $map
		2176	or next;
		2177	$neigh->load;
		2178
		2179	# now find the diagonal neighbours
		2180	push @neigh,
		2181	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2182	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2183	}
		2184
		2185	for (grep defined $_->[0], @neigh) {
		2186	my ($path, $origin) = @$_;
		2187	my $neigh = find $path, $origin
		2188	or next;
		2189	$neigh->load;
		2190	}
		2191	}
		2192
		2193	sub find_sync {
1278	my ($path, $origin) = @_;	2194	my ($path, $origin) = @_;
1279		2195
1280	#warn "load_map_sync<$path, $origin>\n";#d#	2196	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2197	if $Coro::current == $Coro::main;
1281		2198
1282	cf::sync_job {	2199	find $path, $origin
1283	my $map = cf::map::find_map $path, $origin	2200	}
1284	or return;	2201
		2202	sub do_load_sync {
		2203	my ($map) = @_;
		2204
		2205	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2206	if $Coro::current == $Coro::main;
		2207
1285	$map->load;	2208	$map->load;
1286	$map	2209	}
		2210
		2211	our %MAP_PREFETCH;
		2212	our $MAP_PREFETCHER = undef;
		2213
		2214	sub find_async {
		2215	my ($path, $origin, $load) = @_;
		2216
		2217	$path = normalise $path, $origin && $origin->{path};
		2218
		2219	if (my $map = $cf::MAP{$path}) {
		2220	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2221	}
		2222
		2223	$MAP_PREFETCH{$path} |= $load;
		2224
		2225	$MAP_PREFETCHER ||= cf::async {
		2226	$Coro::current->{desc} = "map prefetcher";
		2227
		2228	while (%MAP_PREFETCH) {
		2229	while (my ($k, $v) = each %MAP_PREFETCH) {
		2230	if (my $map = find $k) {
		2231	$map->load if $v;
		2232	}
		2233
		2234	delete $MAP_PREFETCH{$k};
		2235	}
		2236	}
		2237	undef $MAP_PREFETCHER;
		2238	};
		2239	$MAP_PREFETCHER->prio (6);
		2240
		2241	()
		2242	}
		2243
		2244	# common code, used by both ->save and ->swapout
		2245	sub _save {
		2246	my ($self) = @_;
		2247
		2248	$self->{last_save} = $cf::RUNTIME;
		2249
		2250	return unless $self->dirty;
		2251
		2252	my $save = $self->save_path; utf8::encode $save;
		2253	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2254
		2255	$self->{load_path} = $save;
		2256
		2257	return if $self->{deny_save};
		2258
		2259	local $self->{last_access} = $self->last_access;#d#
		2260
		2261	cf::async {
		2262	$Coro::current->{desc} = "map player save";
		2263	$_->contr->save for $self->players;
		2264	};
		2265
		2266	cf::get_slot 0.02;
		2267
		2268	if ($uniq) {
		2269	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2270	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2271	} else {
		2272	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1287	}	2273	}
1288	}	2274	}
1289		2275
1290	sub save {	2276	sub save {
1291	my ($self) = @_;	2277	my ($self) = @_;
1292		2278
1293	$self->{last_save} = $cf::RUNTIME;	2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
1294		2280
1295	return unless $self->dirty;	2281	$self->_save;
1296
1297	my $save = $self->{path}->save_path; utf8::encode $save;
1298	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1299
1300	$self->{load_path} = $save;
1301
1302	return if $self->{deny_save};
1303
1304	if ($uniq) {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306	$self->save_objects ($uniq, cf::IO_UNIQUES);
1307	} else {
1308	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309	}
1310	}	2282	}
1311		2283
1312	sub swap_out {	2284	sub swap_out {
1313	my ($self) = @_;	2285	my ($self) = @_;
1314		2286
		2287	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2288
		2289	return if $self->in_memory != cf::MAP_ACTIVE;
		2290	return if $self->{deny_save};
1315	return if $self->players;	2291	return if $self->players;
1316	return if $self->in_memory != cf::MAP_IN_MEMORY;
1317	return if $self->{deny_save};
1318		2292
		2293	# first deactivate the map and "unlink" it from the core
		2294	$self->deactivate;
		2295	$_->clear_links_to ($self) for values %cf::MAP;
		2296	$self->in_memory (cf::MAP_SWAPPED);
		2297
		2298	# then atomically save
1319	$self->save;	2299	$self->_save;
		2300
		2301	# then free the map
1320	$self->clear;	2302	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2303	}
1323		2304
1324	sub reset_at {	2305	sub reset_at {
1325	my ($self) = @_;	2306	my ($self) = @_;
1326		2307
1327	# TODO: safety, remove and allow resettable per-player maps	2308	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2309	return 1e99 if $self->{deny_reset};
1330		2310
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2311	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2312	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2313
…		…
1338	my ($self) = @_;	2318	my ($self) = @_;
1339		2319
1340	$self->reset_at <= $cf::RUNTIME	2320	$self->reset_at <= $cf::RUNTIME
1341	}	2321	}
1342		2322
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2323	sub reset {
1365	my ($self) = @_;	2324	my ($self) = @_;
1366		2325
		2326	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2327
1367	return if $self->players;	2328	return if $self->players;
1368	return if $self->{path}{user_rel};#d#
1369		2329
1370	warn "resetting map ", $self->path;#d#	2330	cf::trace "resetting map ", $self->path, "\n";
		2331
		2332	$self->in_memory (cf::MAP_SWAPPED);
		2333
		2334	# need to save uniques path
		2335	unless ($self->{deny_save}) {
		2336	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2337
		2338	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2339	if $uniq;
		2340	}
1371		2341
1372	delete $cf::MAP{$self->path};	2342	delete $cf::MAP{$self->path};
1373		2343
		2344	$self->deactivate;
1374	$_->clear_links_to ($self) for values %cf::MAP;	2345	$_->clear_links_to ($self) for values %cf::MAP;
		2346	$self->clear;
1375		2347
1376	$self->unlink_save;	2348	$self->unlink_save;
1377	$self->destroy;	2349	$self->destroy;
1378	}	2350	}
1379		2351
1380	my $nuke_counter = "aaaa";	2352	my $nuke_counter = "aaaa";
1381		2353
1382	sub nuke {	2354	sub nuke {
1383	my ($self) = @_;	2355	my ($self) = @_;
1384		2356
		2357	{
		2358	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2359
		2360	delete $cf::MAP{$self->path};
		2361
		2362	$self->unlink_save;
		2363
		2364	bless $self, "cf::map::wrap";
		2365	delete $self->{deny_reset};
1385	$self->{deny_save} = 1;	2366	$self->{deny_save} = 1;
1386	$self->reset_timeout (1);	2367	$self->reset_timeout (1);
1387	$self->rename ("{nuke}/" . ($nuke_counter++));	2368	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2369
		2370	$cf::MAP{$self->path} = $self;
		2371	}
		2372
1388	$self->reset; # polite request, might not happen	2373	$self->reset; # polite request, might not happen
1389	}	2374	}
1390		2375
1391	sub customise_for {	2376	=item $maps = cf::map::tmp_maps
1392	my ($map, $ob) = @_;
1393		2377
1394	if ($map->per_player) {	2378	Returns an arrayref with all map paths of currently instantiated and saved
1395	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2379	maps. May block.
		2380
		2381	=cut
		2382
		2383	sub tmp_maps() {
1396	}	2384	[
1397		2385	map {
1398	$map	2386	utf8::decode $_;
		2387	/\.map$/
		2388	? normalise $_
		2389	: ()
		2390	} @{ aio_readdir $TMPDIR or [] }
		2391	]
1399	}	2392	}
1400		2393
1401	sub emergency_save {	2394	=item $maps = cf::map::random_maps
1402	local $cf::FREEZE = 1;
1403		2395
1404	warn "enter emergency map save\n";	2396	Returns an arrayref with all map paths of currently instantiated and saved
		2397	random maps. May block.
1405		2398
1406	cf::sync_job {	2399	=cut
1407	warn "begin emergency map save\n";	2400
1408	$_->save for values %cf::MAP;	2401	sub random_maps() {
		2402	[
		2403	map {
		2404	utf8::decode $_;
		2405	/\.map$/
		2406	? normalise "?random/$_"
		2407	: ()
		2408	} @{ aio_readdir $RANDOMDIR or [] }
		2409	]
		2410	}
		2411
		2412	=item cf::map::unique_maps
		2413
		2414	Returns an arrayref of paths of all shared maps that have
		2415	instantiated unique items. May block.
		2416
		2417	=cut
		2418
		2419	sub unique_maps() {
		2420	[
		2421	map {
		2422	utf8::decode $_;
		2423	s/\.map$//; # TODO future compatibility hack
		2424	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2425	? ()
		2426	: normalise $_
		2427	} @{ aio_readdir $UNIQUEDIR or [] }
		2428	]
		2429	}
		2430
		2431	=item cf::map::static_maps
		2432
		2433	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2434	file in the shared directory excluding F</styles> and F</editor>). May
		2435	block.
		2436
		2437	=cut
		2438
		2439	sub static_maps() {
		2440	my @dirs = "";
		2441	my @maps;
		2442
		2443	while (@dirs) {
		2444	my $dir = shift @dirs;
		2445
		2446	next if $dir eq "/styles" || $dir eq "/editor";
		2447
		2448	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2449	or return;
		2450
		2451	for (@$files) {
		2452	s/\.map$// or next;
		2453	utf8::decode $_;
		2454	push @maps, "$dir/$_";
		2455	}
		2456
		2457	push @dirs, map "$dir/$_", @$dirs;
1409	};	2458	}
1410		2459
1411	warn "end emergency map save\n";	2460	\@maps
		2461	}
		2462
		2463	=back
		2464
		2465	=head3 cf::object
		2466
		2467	=cut
		2468
		2469	package cf::object;
		2470
		2471	=over 4
		2472
		2473	=item $ob->inv_recursive
		2474
		2475	Returns the inventory of the object I<and> their inventories, recursively,
		2476	but I<not> the object itself.
		2477
		2478	=cut
		2479
		2480	sub inv_recursive_;
		2481	sub inv_recursive_ {
		2482	map { $_, inv_recursive_ $_->inv } @_
		2483	}
		2484
		2485	sub inv_recursive {
		2486	inv_recursive_ inv $_[0]
		2487	}
		2488
		2489	=item $ref = $ob->ref
		2490
		2491	Creates and returns a persistent reference to an object that can be stored as a string.
		2492
		2493	=item $ob = cf::object::deref ($refstring)
		2494
		2495	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2496	even if the object actually exists. May block.
		2497
		2498	=cut
		2499
		2500	sub deref {
		2501	my ($ref) = @_;
		2502
		2503	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2504	my ($uuid, $name) = ($1, $2);
		2505	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2506	or return;
		2507	$pl->ob->uuid eq $uuid
		2508	or return;
		2509
		2510	$pl->ob
		2511	} else {
		2512	warn "$ref: cannot resolve object reference\n";
		2513	undef
		2514	}
1412	}	2515	}
1413		2516
1414	package cf;	2517	package cf;
1415		2518
1416	=back	2519	=back
1417
1418		2520
1419	=head3 cf::object::player	2521	=head3 cf::object::player
1420		2522
1421	=over 4	2523	=over 4
1422		2524
…		…
1425	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2527	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1426	can be C<undef>. Does the right thing when the player is currently in a	2528	can be C<undef>. Does the right thing when the player is currently in a
1427	dialogue with the given NPC character.	2529	dialogue with the given NPC character.
1428		2530
1429	=cut	2531	=cut
		2532
		2533	our $SAY_CHANNEL = {
		2534	id => "say",
		2535	title => "Map",
		2536	reply => "say ",
		2537	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2538	};
		2539
		2540	our $CHAT_CHANNEL = {
		2541	id => "chat",
		2542	title => "Chat",
		2543	reply => "chat ",
		2544	tooltip => "Player chat and shouts, global to the server.",
		2545	};
1430		2546
1431	# rough implementation of a future "reply" method that works	2547	# rough implementation of a future "reply" method that works
1432	# with dialog boxes.	2548	# with dialog boxes.
1433	#TODO: the first argument must go, split into a $npc->reply_to ( method	2549	#TODO: the first argument must go, split into a $npc->reply_to ( method
1434	sub cf::object::player::reply($$$;$) {	2550	sub cf::object::player::reply($$$;$) {
…		…
1436		2552
1437	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2553	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1438		2554
1439	if ($self->{record_replies}) {	2555	if ($self->{record_replies}) {
1440	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2556	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2557
1441	} else {	2558	} else {
		2559	my $pl = $self->contr;
		2560
		2561	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2562	my $dialog = $pl->{npc_dialog};
		2563	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2564
		2565	} else {
1442	$msg = $npc->name . " says: $msg" if $npc;	2566	$msg = $npc->name . " says: $msg" if $npc;
1443	$self->message ($msg, $flags);	2567	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2568	}
1444	}	2569	}
		2570	}
		2571
		2572	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2573
		2574	=cut
		2575
		2576	sub cf::object::send_msg {
		2577	my $pl = shift->contr
		2578	or return;
		2579	$pl->send_msg (@_);
1445	}	2580	}
1446		2581
1447	=item $player_object->may ("access")	2582	=item $player_object->may ("access")
1448		2583
1449	Returns wether the given player is authorized to access resource "access"	2584	Returns wether the given player is authorized to access resource "access"
…		…
1462		2597
1463	=item $player_object->enter_link	2598	=item $player_object->enter_link
1464		2599
1465	Freezes the player and moves him/her to a special map (C<{link}>).	2600	Freezes the player and moves him/her to a special map (C<{link}>).
1466		2601
1467	The player should be reaosnably safe there for short amounts of time. You	2602	The player should be reasonably safe there for short amounts of time (e.g.
1468	I<MUST> call C<leave_link> as soon as possible, though.	2603	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2604	though, as the player cannot control the character while it is on the link
		2605	map.
		2606
		2607	Will never block.
1469		2608
1470	=item $player_object->leave_link ($map, $x, $y)	2609	=item $player_object->leave_link ($map, $x, $y)
1471		2610
1472	Moves the player out of the specila link map onto the given map. If the	2611	Moves the player out of the special C<{link}> map onto the specified
1473	map is not valid (or omitted), the player will be moved back to the	2612	map. If the map is not valid (or omitted), the player will be moved back
1474	location he/she was before the call to C<enter_link>, or, if that fails,	2613	to the location he/she was before the call to C<enter_link>, or, if that
1475	to the emergency map position.	2614	fails, to the emergency map position.
1476		2615
1477	Might block.	2616	Might block.
1478		2617
1479	=cut	2618	=cut
		2619
		2620	sub link_map {
		2621	unless ($LINK_MAP) {
		2622	$LINK_MAP = cf::map::find "{link}"
		2623	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2624	$LINK_MAP->load;
		2625	}
		2626
		2627	$LINK_MAP
		2628	}
1480		2629
1481	sub cf::object::player::enter_link {	2630	sub cf::object::player::enter_link {
1482	my ($self) = @_;	2631	my ($self) = @_;
1483		2632
1484	$self->deactivate_recursive;	2633	$self->deactivate_recursive;
1485		2634
1486	return if $self->map == $LINK_MAP;	2635	++$self->{_link_recursion};
		2636
		2637	return if UNIVERSAL::isa $self->map, "ext::map_link";
1487		2638
1488	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2639	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489	if $self->map;	2640	if $self->map && $self->map->{path} ne "{link}";
1490		2641
1491	$self->enter_map ($LINK_MAP, 20, 20);	2642	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1492	}	2643	}
1493		2644
1494	sub cf::object::player::leave_link {	2645	sub cf::object::player::leave_link {
1495	my ($self, $map, $x, $y) = @_;	2646	my ($self, $map, $x, $y) = @_;
		2647
		2648	return unless $self->contr->active;
1496		2649
1497	my $link_pos = delete $self->{_link_pos};	2650	my $link_pos = delete $self->{_link_pos};
1498		2651
1499	unless ($map) {	2652	unless ($map) {
1500	# restore original map position	2653	# restore original map position
1501	($map, $x, $y) = @{ $link_pos || [] };	2654	($map, $x, $y) = @{ $link_pos || [] };
1502	$map = cf::map::find_map $map;	2655	$map = cf::map::find $map;
1503		2656
1504	unless ($map) {	2657	unless ($map) {
1505	($map, $x, $y) = @$EMERGENCY_POSITION;	2658	($map, $x, $y) = @$EMERGENCY_POSITION;
1506	$map = cf::map::find_map $map	2659	$map = cf::map::find $map
1507	or die "FATAL: cannot load emergency map\n";	2660	or die "FATAL: cannot load emergency map\n";
1508	}	2661	}
1509	}	2662	}
1510		2663
1511	($x, $y) = (-1, -1)	2664	($x, $y) = (-1, -1)
1512	unless (defined $x) && (defined $y);	2665	unless (defined $x) && (defined $y);
1513		2666
1514	# use -1 or undef as default coordinates, not 0, 0	2667	# use -1 or undef as default coordinates, not 0, 0
1515	($x, $y) = ($map->enter_x, $map->enter_y)	2668	($x, $y) = ($map->enter_x, $map->enter_y)
1516	if $x <=0 && $y <= 0;	2669	if $x <= 0 && $y <= 0;
1517		2670
1518	$map->load;	2671	$map->load;
		2672	$map->load_neighbours;
1519		2673
		2674	return unless $self->contr->active;
		2675
		2676	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2677	if ($self->enter_map ($map, $x, $y)) {
		2678	# entering was successful
		2679	delete $self->{_link_recursion};
		2680	# only activate afterwards, to support waiting in hooks
1520	$self->activate_recursive;	2681	$self->activate_recursive;
1521	$self->enter_map ($map, $x, $y);
1522	}
1523
1524	cf::player->attach (
1525	on_logout => sub {
1526	my ($pl) = @_;
1527
1528	# abort map switching before logout
1529	if ($pl->ob->{_link_pos}) {
1530	cf::sync_job {
1531	$pl->ob->leave_link
1532	};
1533	}
1534	},	2682	}
1535	on_login => sub {
1536	my ($pl) = @_;
1537		2683
1538	# try to abort aborted map switching on player login :)	2684	}
1539	# should happen only on crashes
1540	if ($pl->ob->{_link_pos}) {
1541	$pl->ob->enter_link;
1542	Coro::async {
1543	# we need this sleep as the login has a concurrent enter_exit running
1544	# and this sleep increases chances of the player not ending up in scorn
1545	Coro::Timer::sleep 1;
1546	$pl->ob->leave_link;
1547	};
1548	}
1549	},
1550	);
1551		2685
1552	=item $player_object->goto_map ($path, $x, $y)	2686	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1553		2687
1554	=cut	2688	Moves the player to the given map-path and coordinates by first freezing
		2689	her, loading and preparing them map, calling the provided $check callback
		2690	that has to return the map if sucecssful, and then unfreezes the player on
		2691	the new (success) or old (failed) map position. In either case, $done will
		2692	be called at the end of this process.
1555		2693
		2694	Note that $check will be called with a potentially non-loaded map, so if
		2695	it needs a loaded map it has to call C<< ->load >>.
		2696
		2697	=cut
		2698
		2699	our $GOTOGEN;
		2700
1556	sub cf::object::player::goto_map {	2701	sub cf::object::player::goto {
1557	my ($self, $path, $x, $y) = @_;	2702	my ($self, $path, $x, $y, $check, $done) = @_;
		2703
		2704	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2705	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2706	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2707	($path, $x, $y) = @$EMERGENCY_POSITION;
		2708	}
		2709
		2710	# do generation counting so two concurrent goto's will be executed in-order
		2711	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1558		2712
1559	$self->enter_link;	2713	$self->enter_link;
1560		2714
1561	(Coro::async {	2715	(async {
1562	$path = new cf::path $path;	2716	$Coro::current->{desc} = "player::goto $path $x $y";
1563		2717
1564	my $map = cf::map::find_map $path->as_string;	2718	# *tag paths override both path and x|y
		2719	if ($path =~ /^\*(.*)$/) {
		2720	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2721	my $ob = $obs[rand @obs];
		2722
		2723	# see if we actually can go there
		2724	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2725	$ob = $obs[rand @obs];
		2726	} else {
		2727	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2728	}
		2729	# else put us there anyways for now #d#
		2730
		2731	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2732	} else {
		2733	($path, $x, $y) = (undef, undef, undef);
		2734	}
		2735	}
		2736
		2737	my $map = eval {
		2738	my $map = defined $path ? cf::map::find $path : undef;
		2739
		2740	if ($map) {
1565	$map = $map->customise_for ($self) if $map;	2741	$map = $map->customise_for ($self);
1566		2742	$map = $check->($map, $x, $y, $self) if $check && $map;
1567	# warn "entering ", $map->path, " at ($x, $y)\n"	2743	} else {
1568	# if $map;
1569
1570	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2744	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2745	}
1571		2746
		2747	$map
		2748	};
		2749
		2750	if ($@) {
		2751	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2752	LOG llevError | logBacktrace, Carp::longmess $@;
		2753	}
		2754
		2755	if ($gen == $self->{_goto_generation}) {
		2756	delete $self->{_goto_generation};
1572	$self->leave_link ($map, $x, $y);	2757	$self->leave_link ($map, $x, $y);
		2758	}
		2759
		2760	$done->($self) if $done;
1573	})->prio (1);	2761	})->prio (1);
1574	}	2762	}
1575		2763
1576	=item $player_object->enter_exit ($exit_object)	2764	=item $player_object->enter_exit ($exit_object)
1577		2765
…		…
1579		2767
1580	sub parse_random_map_params {	2768	sub parse_random_map_params {
1581	my ($spec) = @_;	2769	my ($spec) = @_;
1582		2770
1583	my $rmp = { # defaults	2771	my $rmp = { # defaults
1584	xsize => 10,	2772	xsize => (cf::rndm 15, 40),
1585	ysize => 10,	2773	ysize => (cf::rndm 15, 40),
		2774	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2775	#layout => string,
1586	};	2776	};
1587		2777
1588	for (split /\n/, $spec) {	2778	for (split /\n/, $spec) {
1589	my ($k, $v) = split /\s+/, $_, 2;	2779	my ($k, $v) = split /\s+/, $_, 2;
1590		2780
…		…
1602	# that depends on the exit object	2792	# that depends on the exit object
1603		2793
1604	my $rmp = parse_random_map_params $exit->msg;	2794	my $rmp = parse_random_map_params $exit->msg;
1605		2795
1606	if ($exit->map) {	2796	if ($exit->map) {
1607	$rmp->{region} = $exit->map->region_name;	2797	$rmp->{region} = $exit->region->name;
1608	$rmp->{origin_map} = $exit->map->path;	2798	$rmp->{origin_map} = $exit->map->path;
1609	$rmp->{origin_x} = $exit->x;	2799	$rmp->{origin_x} = $exit->x;
1610	$rmp->{origin_y} = $exit->y;	2800	$rmp->{origin_y} = $exit->y;
		2801
		2802	$exit->map->touch;
1611	}	2803	}
1612		2804
1613	$rmp->{random_seed} ||= $exit->random_seed;	2805	$rmp->{random_seed} ||= $exit->random_seed;
1614		2806
1615	my $data = cf::to_json $rmp;	2807	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1616	my $md5 = Digest::MD5::md5_hex $data;	2808	my $md5 = Digest::MD5::md5_hex $data;
		2809	my $meta = "$RANDOMDIR/$md5.meta";
1617		2810
1618	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2811	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1619	aio_write $fh, 0, (length $data), $data, 0;	2812	aio_write $fh, 0, (length $data), $data, 0;
		2813	undef $fh;
		2814	aio_rename "$meta~", $meta;
1620		2815
		2816	my $slaying = "?random/$md5";
		2817
		2818	if ($exit->valid) {
1621	$exit->slaying ("?random/$md5");	2819	$exit->slaying ("?random/$md5");
1622	$exit->msg (undef);	2820	$exit->msg (undef);
		2821	}
1623	}	2822	}
1624	}	2823	}
1625		2824
1626	sub cf::object::player::enter_exit {	2825	sub cf::object::player::enter_exit {
1627	my ($self, $exit) = @_;	2826	my ($self, $exit) = @_;
1628		2827
1629	return unless $self->type == cf::PLAYER;	2828	return unless $self->type == cf::PLAYER;
1630		2829
1631	$self->enter_link;	2830	$self->enter_link;
1632		2831
1633	(Coro::async {	2832	(async {
		2833	$Coro::current->{desc} = "enter_exit";
		2834
1634	unless (eval {	2835	unless (eval {
		2836	$self->deactivate_recursive; # just to be sure
1635		2837
		2838	# random map handling
		2839	{
		2840	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2841
1636	prepare_random_map $exit	2842	prepare_random_map $exit
1637	if $exit->slaying eq "/!";	2843	if $exit->slaying eq "/!";
		2844	}
1638		2845
1639	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2846	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1640	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2847	my $x = $exit->stats->hp;
		2848	my $y = $exit->stats->sp;
1641		2849
		2850	$self->goto ($map, $x, $y);
		2851
		2852	# if exit is damned, update players death & WoR home-position
		2853	$self->contr->savebed ($map, $x, $y)
		2854	if $exit->flag (cf::FLAG_DAMNED);
		2855
1642	1;	2856	1
1643	}) {	2857	}) {
1644	$self->message ("Something went wrong deep within the crossfire server. "	2858	$self->message ("Something went wrong deep within the deliantra server. "
1645	. "I'll try to bring you back to the map you were before. "	2859	. "I'll try to bring you back to the map you were before. "
1646	. "Please report this to the dungeon master",	2860	. "Please report this to the dungeon master!",
1647	cf::NDI_UNIQUE | cf::NDI_RED);	2861	cf::NDI_UNIQUE | cf::NDI_RED);
1648		2862
1649	warn "ERROR in enter_exit: $@";	2863	error "ERROR in enter_exit: $@";
1650	$self->leave_link;	2864	$self->leave_link;
1651	}	2865	}
1652	})->prio (1);	2866	})->prio (1);
1653	}	2867	}
1654		2868
…		…
1665		2879
1666	sub cf::client::send_drawinfo {	2880	sub cf::client::send_drawinfo {
1667	my ($self, $text, $flags) = @_;	2881	my ($self, $text, $flags) = @_;
1668		2882
1669	utf8::encode $text;	2883	utf8::encode $text;
1670	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2884	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1671	}	2885	}
1672		2886
		2887	=item $client->send_big_packet ($pkt)
		2888
		2889	Like C<send_packet>, but tries to compress large packets, and fragments
		2890	them as required.
		2891
		2892	=cut
		2893
		2894	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2895
		2896	sub cf::client::send_big_packet {
		2897	my ($self, $pkt) = @_;
		2898
		2899	# try lzf for large packets
		2900	$pkt = "lzf " . Compress::LZF::compress $pkt
		2901	if 1024 <= length $pkt and $self->{can_lzf};
		2902
		2903	# split very large packets
		2904	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2905	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2906	$pkt = "frag";
		2907	}
		2908
		2909	$self->send_packet ($pkt);
		2910	}
		2911
		2912	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2913
		2914	Send a drawinfo or msg packet to the client, formatting the msg for the
		2915	client if neccessary. C<$type> should be a string identifying the type of
		2916	the message, with C<log> being the default. If C<$color> is negative, suppress
		2917	the message unless the client supports the msg packet.
		2918
		2919	=cut
		2920
		2921	# non-persistent channels (usually the info channel)
		2922	our %CHANNEL = (
		2923	"c/motd" => {
		2924	id => "infobox",
		2925	title => "MOTD",
		2926	reply => undef,
		2927	tooltip => "The message of the day",
		2928	},
		2929	"c/identify" => {
		2930	id => "infobox",
		2931	title => "Identify",
		2932	reply => undef,
		2933	tooltip => "Items recently identified",
		2934	},
		2935	"c/examine" => {
		2936	id => "infobox",
		2937	title => "Examine",
		2938	reply => undef,
		2939	tooltip => "Signs and other items you examined",
		2940	},
		2941	"c/shopinfo" => {
		2942	id => "infobox",
		2943	title => "Shop Info",
		2944	reply => undef,
		2945	tooltip => "What your bargaining skill tells you about the shop",
		2946	},
		2947	"c/book" => {
		2948	id => "infobox",
		2949	title => "Book",
		2950	reply => undef,
		2951	tooltip => "The contents of a note or book",
		2952	},
		2953	"c/lookat" => {
		2954	id => "infobox",
		2955	title => "Look",
		2956	reply => undef,
		2957	tooltip => "What you saw there",
		2958	},
		2959	"c/who" => {
		2960	id => "infobox",
		2961	title => "Players",
		2962	reply => undef,
		2963	tooltip => "Shows players who are currently online",
		2964	},
		2965	"c/body" => {
		2966	id => "infobox",
		2967	title => "Body Parts",
		2968	reply => undef,
		2969	tooltip => "Shows which body parts you posess and are available",
		2970	},
		2971	"c/statistics" => {
		2972	id => "infobox",
		2973	title => "Statistics",
		2974	reply => undef,
		2975	tooltip => "Shows your primary statistics",
		2976	},
		2977	"c/skills" => {
		2978	id => "infobox",
		2979	title => "Skills",
		2980	reply => undef,
		2981	tooltip => "Shows your experience per skill and item power",
		2982	},
		2983	"c/shopitems" => {
		2984	id => "infobox",
		2985	title => "Shop Items",
		2986	reply => undef,
		2987	tooltip => "Shows the items currently for sale in this shop",
		2988	},
		2989	"c/resistances" => {
		2990	id => "infobox",
		2991	title => "Resistances",
		2992	reply => undef,
		2993	tooltip => "Shows your resistances",
		2994	},
		2995	"c/pets" => {
		2996	id => "infobox",
		2997	title => "Pets",
		2998	reply => undef,
		2999	tooltip => "Shows information abotu your pets/a specific pet",
		3000	},
		3001	"c/perceiveself" => {
		3002	id => "infobox",
		3003	title => "Perceive Self",
		3004	reply => undef,
		3005	tooltip => "You gained detailed knowledge about yourself",
		3006	},
		3007	"c/uptime" => {
		3008	id => "infobox",
		3009	title => "Uptime",
		3010	reply => undef,
		3011	tooltip => "How long the server has been running since last restart",
		3012	},
		3013	"c/mapinfo" => {
		3014	id => "infobox",
		3015	title => "Map Info",
		3016	reply => undef,
		3017	tooltip => "Information related to the maps",
		3018	},
		3019	"c/party" => {
		3020	id => "party",
		3021	title => "Party",
		3022	reply => "gsay ",
		3023	tooltip => "Messages and chat related to your party",
		3024	},
		3025	"c/death" => {
		3026	id => "death",
		3027	title => "Death",
		3028	reply => undef,
		3029	tooltip => "Reason for and more info about your most recent death",
		3030	},
		3031	"c/say" => $SAY_CHANNEL,
		3032	"c/chat" => $CHAT_CHANNEL,
		3033	);
		3034
		3035	sub cf::client::send_msg {
		3036	my ($self, $channel, $msg, $color, @extra) = @_;
		3037
		3038	$msg = $self->pl->expand_cfpod ($msg)
		3039	unless $color & cf::NDI_VERBATIM;
		3040
		3041	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3042
		3043	# check predefined channels, for the benefit of C
		3044	if ($CHANNEL{$channel}) {
		3045	$channel = $CHANNEL{$channel};
		3046
		3047	$self->ext_msg (channel_info => $channel);
		3048	$channel = $channel->{id};
		3049
		3050	} elsif (ref $channel) {
		3051	# send meta info to client, if not yet sent
		3052	unless (exists $self->{channel}{$channel->{id}}) {
		3053	$self->{channel}{$channel->{id}} = $channel;
		3054	$self->ext_msg (channel_info => $channel);
		3055	}
		3056
		3057	$channel = $channel->{id};
		3058	}
		3059
		3060	return unless @extra || length $msg;
		3061
		3062	# default colour, mask it out
		3063	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3064	if $color & cf::NDI_DEF;
		3065
		3066	my $pkt = "msg "
		3067	. $self->{json_coder}->encode (
		3068	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3069	);
		3070
		3071	$self->send_big_packet ($pkt);
		3072	}
		3073
		3074	=item $client->ext_msg ($type, @msg)
		3075
		3076	Sends an ext event to the client.
		3077
		3078	=cut
		3079
		3080	sub cf::client::ext_msg($$@) {
		3081	my ($self, $type, @msg) = @_;
		3082
		3083	if ($self->extcmd == 2) {
		3084	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3085	} elsif ($self->extcmd == 1) { # TODO: remove
		3086	push @msg, msgtype => "event_$type";
		3087	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3088	}
		3089	}
		3090
		3091	=item $client->ext_reply ($msgid, @msg)
		3092
		3093	Sends an ext reply to the client.
		3094
		3095	=cut
		3096
		3097	sub cf::client::ext_reply($$@) {
		3098	my ($self, $id, @msg) = @_;
		3099
		3100	if ($self->extcmd == 2) {
		3101	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3102	} elsif ($self->extcmd == 1) {
		3103	#TODO: version 1, remove
		3104	unshift @msg, msgtype => "reply", msgid => $id;
		3105	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3106	}
		3107	}
1673		3108
1674	=item $success = $client->query ($flags, "text", \&cb)	3109	=item $success = $client->query ($flags, "text", \&cb)
1675		3110
1676	Queues a query to the client, calling the given callback with	3111	Queues a query to the client, calling the given callback with
1677	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3112	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1678	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3113	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1679		3114
1680	Queries can fail, so check the return code. Or don't, as queries will become	3115	Queries can fail, so check the return code. Or don't, as queries will
1681	reliable at some point in the future.	3116	become reliable at some point in the future.
1682		3117
1683	=cut	3118	=cut
1684		3119
1685	sub cf::client::query {	3120	sub cf::client::query {
1686	my ($self, $flags, $text, $cb) = @_;	3121	my ($self, $flags, $text, $cb) = @_;
…		…
1694	utf8::encode $text;	3129	utf8::encode $text;
1695	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3130	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1696		3131
1697	$self->send_packet ($self->{query_queue}[0][0])	3132	$self->send_packet ($self->{query_queue}[0][0])
1698	if @{ $self->{query_queue} } == 1;	3133	if @{ $self->{query_queue} } == 1;
		3134
		3135	1
1699	}	3136	}
1700		3137
1701	cf::client->attach (	3138	cf::client->attach (
		3139	on_connect => sub {
		3140	my ($ns) = @_;
		3141
		3142	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3143	},
1702	on_reply => sub {	3144	on_reply => sub {
1703	my ($ns, $msg) = @_;	3145	my ($ns, $msg) = @_;
1704		3146
1705	# this weird shuffling is so that direct followup queries	3147	# this weird shuffling is so that direct followup queries
1706	# get handled first	3148	# get handled first
1707	my $queue = delete $ns->{query_queue};	3149	my $queue = delete $ns->{query_queue}
		3150	or return; # be conservative, not sure how that can happen, but we saw a crash here
1708		3151
1709	(shift @$queue)->[1]->($msg);	3152	(shift @$queue)->[1]->($msg);
		3153	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710		3154
1711	push @{ $ns->{query_queue} }, @$queue;	3155	push @{ $ns->{query_queue} }, @$queue;
1712		3156
1713	if (@{ $ns->{query_queue} } == @$queue) {	3157	if (@{ $ns->{query_queue} } == @$queue) {
1714	if (@$queue) {	3158	if (@$queue) {
…		…
1716	} else {	3160	} else {
1717	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3161	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1718	}	3162	}
1719	}	3163	}
1720	},	3164	},
		3165	on_exticmd => sub {
		3166	my ($ns, $buf) = @_;
		3167
		3168	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3169
		3170	if (ref $msg) {
		3171	my ($type, $reply, @payload) =
		3172	"ARRAY" eq ref $msg
		3173	? @$msg
		3174	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3175
		3176	my @reply;
		3177
		3178	if (my $cb = $EXTICMD{$type}) {
		3179	@reply = $cb->($ns, @payload);
		3180	}
		3181
		3182	$ns->ext_reply ($reply, @reply)
		3183	if $reply;
		3184
		3185	} else {
		3186	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3187	}
		3188
		3189	cf::override;
		3190	},
1721	);	3191	);
1722		3192
1723	=item $client->coro (\&cb)	3193	=item $client->async (\&cb)
1724		3194
1725	Create a new coroutine, running the specified callback. The coroutine will	3195	Create a new coroutine, running the specified callback. The coroutine will
1726	be automatically cancelled when the client gets destroyed (e.g. on logout,	3196	be automatically cancelled when the client gets destroyed (e.g. on logout,
1727	or loss of connection).	3197	or loss of connection).
1728		3198
1729	=cut	3199	=cut
1730		3200
1731	sub cf::client::coro {	3201	sub cf::client::async {
1732	my ($self, $cb) = @_;	3202	my ($self, $cb) = @_;
1733		3203
1734	my $coro; $coro = async {	3204	my $coro = &Coro::async ($cb);
1735	eval {
1736	$cb->();
1737	};
1738	warn $@ if $@;
1739	};
1740		3205
1741	$coro->on_destroy (sub {	3206	$coro->on_destroy (sub {
1742	delete $self->{_coro}{$coro+0};	3207	delete $self->{_coro}{$coro+0};
1743	});	3208	});
1744		3209
…		…
1746		3211
1747	$coro	3212	$coro
1748	}	3213	}
1749		3214
1750	cf::client->attach (	3215	cf::client->attach (
1751	on_destroy => sub {	3216	on_client_destroy => sub {
1752	my ($ns) = @_;	3217	my ($ns) = @_;
1753		3218
1754	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3219	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1755	},	3220	},
1756	);	3221	);
…		…
1771	our $safe = new Safe "safe";	3236	our $safe = new Safe "safe";
1772	our $safe_hole = new Safe::Hole;	3237	our $safe_hole = new Safe::Hole;
1773		3238
1774	$SIG{FPE} = 'IGNORE';	3239	$SIG{FPE} = 'IGNORE';
1775		3240
1776	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3241	$safe->permit_only (Opcode::opset qw(
		3242	:base_core :base_mem :base_orig :base_math :base_loop
		3243	grepstart grepwhile mapstart mapwhile
		3244	sort time
		3245	));
1777		3246
1778	# here we export the classes and methods available to script code	3247	# here we export the classes and methods available to script code
1779		3248
1780	=pod	3249	=pod
1781		3250
1782	The following fucntions and emthods are available within a safe environment:	3251	The following functions and methods are available within a safe environment:
1783		3252
1784	cf::object contr pay_amount pay_player map	3253	cf::object
		3254	contr pay_amount pay_player map x y force_find force_add destroy
		3255	insert remove name archname title slaying race decrease split
		3256	value
		3257
1785	cf::object::player player	3258	cf::object::player
1786	cf::player peaceful	3259	player
1787	cf::map trigger	3260
		3261	cf::player
		3262	peaceful
		3263
		3264	cf::map
		3265	trigger
1788		3266
1789	=cut	3267	=cut
1790		3268
1791	for (	3269	for (
1792	["cf::object" => qw(contr pay_amount pay_player map)],	3270	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3271	insert remove inv nrof name archname title slaying race
		3272	decrease split destroy change_exp value msg lore send_msg)],
1793	["cf::object::player" => qw(player)],	3273	["cf::object::player" => qw(player)],
1794	["cf::player" => qw(peaceful)],	3274	["cf::player" => qw(peaceful send_msg)],
1795	["cf::map" => qw(trigger)],	3275	["cf::map" => qw(trigger)],
1796	) {	3276	) {
1797	no strict 'refs';
1798	my ($pkg, @funs) = @$_;	3277	my ($pkg, @funs) = @$_;
1799	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3278	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1800	for @funs;	3279	for @funs;
1801	}	3280	}
1802		3281
…		…
1817		3296
1818	my $qcode = $code;	3297	my $qcode = $code;
1819	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3298	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1820	$qcode =~ s/\n/\\n/g;	3299	$qcode =~ s/\n/\\n/g;
1821		3300
		3301	%vars = (_dummy => 0) unless %vars;
		3302
		3303	my @res;
1822	local $_;	3304	local $_;
1823	local @safe::cf::_safe_eval_args = values %vars;
1824		3305
1825	my $eval =	3306	my $eval =
1826	"do {\n"	3307	"do {\n"
1827	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3308	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1828	. "#line 0 \"{$qcode}\"\n"	3309	. "#line 0 \"{$qcode}\"\n"
1829	. $code	3310	. $code
1830	. "\n}"	3311	. "\n}"
1831	;	3312	;
1832		3313
		3314	if ($CFG{safe_eval}) {
1833	sub_generation_inc;	3315	sub_generation_inc;
		3316	local @safe::cf::_safe_eval_args = values %vars;
1834	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3317	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1835	sub_generation_inc;	3318	sub_generation_inc;
		3319	} else {
		3320	local @cf::_safe_eval_args = values %vars;
		3321	@res = wantarray ? eval eval : scalar eval $eval;
		3322	}
1836		3323
1837	if ($@) {	3324	if ($@) {
1838	warn "$@";	3325	warn "$@",
1839	warn "while executing safe code '$code'\n";	3326	"while executing safe code '$code'\n",
1840	warn "with arguments " . (join " ", %vars) . "\n";	3327	"with arguments " . (join " ", %vars) . "\n";
1841	}	3328	}
1842		3329
1843	wantarray ? @res : $res[0]	3330	wantarray ? @res : $res[0]
1844	}	3331	}
1845		3332
…		…
1859	=cut	3346	=cut
1860		3347
1861	sub register_script_function {	3348	sub register_script_function {
1862	my ($fun, $cb) = @_;	3349	my ($fun, $cb) = @_;
1863		3350
1864	no strict 'refs';	3351	$fun = "safe::$fun" if $CFG{safe_eval};
1865	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3352	*$fun = $safe_hole->wrap ($cb);
1866	}	3353	}
1867		3354
1868	=back	3355	=back
1869		3356
1870	=cut	3357	=cut
1871		3358
1872	#############################################################################	3359	#############################################################################
		3360	# the server's init and main functions
1873		3361
1874	=head2 EXTENSION DATABASE SUPPORT	3362	# async inc loader. yay.
		3363	sub inc_loader {
		3364	my $mod = $_[1];
1875		3365
1876	Crossfire maintains a very simple database for extension use. It can	3366	if (in_main && !tick_inhibit) {
1877	currently store anything that can be serialised using Storable, which	3367	Carp::cluck "ERROR: attempted synchronous perl module load ($mod)";
1878	excludes objects.	3368	} else {
1879		3369	debug "loading perl module $mod\n";
1880	The parameter C<$family> should best start with the name of the extension
1881	using it, it should be unique.
1882
1883	=over 4
1884
1885	=item $hashref = cf::db_get $family
1886
1887	Return a hashref for use by the extension C<$family>, which can be
1888	modified. After modifications, you have to call C<cf::db_dirty> or
1889	C<cf::db_sync>.
1890
1891	=item $value = cf::db_get $family => $key
1892
1893	Returns a single value from the database
1894
1895	=item cf::db_put $family => $hashref
1896
1897	Stores the given family hashref into the database. Updates are delayed, if
1898	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899
1900	=item cf::db_put $family => $key => $value
1901
1902	Stores the given C<$value> in the family hash. Updates are delayed, if you
1903	want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905	=item cf::db_dirty
1906
1907	Marks the database as dirty, to be updated at a later time.
1908
1909	=item cf::db_sync
1910
1911	Immediately write the database to disk I<if it is dirty>.
1912
1913	=cut
1914
1915	our $DB;
1916
1917	{
1918	my $path = cf::localdir . "/database.pst";
1919
1920	sub db_load() {
1921	$DB = stat $path ? Storable::retrieve $path : { };
1922	}	3370	}
1923		3371
1924	my $pid;	3372	# 1. find real file
		3373	for my $dir (@ORIG_INC) {
		3374	ref $dir and next;
		3375	0 <= Coro::AIO::aio_load "$dir/$mod", my $data
		3376	or next;
1925		3377
1926	sub db_save() {	3378	$data = "#line 1 $dir/$mod\n$data";
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935		3379
1936	my $dirty;	3380	open my $fh, "<", \$data or die;
1937		3381
1938	sub db_sync() {	3382	return $fh;
1939	db_save if $dirty;
1940	undef $dirty;
1941	}	3383	}
1942		3384
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	3385	()
1944	db_sync;	3386	}
		3387
		3388	sub init_inc {
		3389	# save original @INC
		3390	@ORIG_INC = ($LIBDIR, @INC) unless @ORIG_INC;
		3391
		3392	# make sure we can do scalar-opens
		3393	open my $dummy, "<", \my $dummy2;
		3394
		3395	# execute some stuff so perl load's some of the core modules
		3396	/Ü/ =~ /ü/i;
		3397	eval { &Storable::nstore_fd };
		3398
		3399	@INC = (\&inc_loader, @ORIG_INC); # @ORIG_INC is needed for DynaLoader, AutoLoad etc.
		3400
		3401	debug "module loading will be asynchronous from this point on.";
		3402	}
		3403
		3404	sub load_facedata($) {
		3405	my ($path) = @_;
		3406
		3407	# HACK to clear player env face cache, we need some signal framework
		3408	# for this (global event?)
		3409	%ext::player_env::MUSIC_FACE_CACHE = ();
		3410
		3411	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3412
		3413	trace "loading facedata from $path\n";
		3414
		3415	my $facedata;
		3416	0 < aio_load $path, $facedata
		3417	or die "$path: $!";
		3418
		3419	$facedata = Coro::Storable::thaw $facedata;
		3420
		3421	$facedata->{version} == 2
		3422	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3423
		3424	# patch in the exptable
		3425	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3426	$facedata->{resource}{"res/exp_table"} = {
		3427	type => FT_RSRC,
		3428	data => $exp_table,
		3429	hash => (Digest::MD5::md5 $exp_table),
1945	});	3430	};
		3431	cf::cede_to_tick;
1946		3432
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	3433	{
		3434	my $faces = $facedata->{faceinfo};
1951		3435
1952	sub db_get($;$) {	3436	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	3437	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}
1955	: ($DB->{$_[0]} ||= { })
1956	}
1957		3438
1958	sub db_put($$;$) {	3439	cf::face::set_visibility $idx, $info->{visibility};
1959	if (@_ >= 3) {	3440	cf::face::set_magicmap $idx, $info->{magicmap};
1960	$DB->{$_[0]}{$_[1]} = $_[2];	3441	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1961	} else {	3442	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966		3443
1967	cf::global->attach (	3444	cf::cede_to_tick;
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	3445	}
1972	);
1973	}
1974		3446
1975	#############################################################################	3447	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	3448	next unless $info->{smooth};
1977		3449
1978	sub cfg_load {	3450	my $idx = cf::face::find $face
		3451	or next;
		3452
		3453	if (my $smooth = cf::face::find $info->{smooth}) {
		3454	cf::face::set_smooth $idx, $smooth;
		3455	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3456	} else {
		3457	error "smooth face '$info->{smooth}' not found for face '$face'";
		3458	}
		3459
		3460	cf::cede_to_tick;
		3461	}
		3462	}
		3463
		3464	{
		3465	my $anims = $facedata->{animinfo};
		3466
		3467	while (my ($anim, $info) = each %$anims) {
		3468	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3469	cf::cede_to_tick;
		3470	}
		3471
		3472	cf::anim::invalidate_all; # d'oh
		3473	}
		3474
		3475	{
		3476	my $res = $facedata->{resource};
		3477
		3478	while (my ($name, $info) = each %$res) {
		3479	if (defined $info->{type}) {
		3480	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3481
		3482	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3483	cf::face::set_type $idx, $info->{type};
		3484	} else {
		3485	$RESOURCE{$name} = $info; # unused
		3486	}
		3487
		3488	cf::cede_to_tick;
		3489	}
		3490	}
		3491
		3492	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3493
		3494	1
		3495	}
		3496
		3497	register_exticmd fx_want => sub {
		3498	my ($ns, $want) = @_;
		3499
		3500	while (my ($k, $v) = each %$want) {
		3501	$ns->fx_want ($k, $v);
		3502	}
		3503	};
		3504
		3505	sub load_resource_file($) {
		3506	my $guard = lock_acquire "load_resource_file";
		3507
		3508	my $status = load_resource_file_ $_[0];
		3509	get_slot 0.1, 100;
		3510	cf::arch::commit_load;
		3511
		3512	$status
		3513	}
		3514
		3515	sub reload_regions {
		3516	# HACK to clear player env face cache, we need some signal framework
		3517	# for this (global event?)
		3518	%ext::player_env::MUSIC_FACE_CACHE = ();
		3519
		3520	load_resource_file "$MAPDIR/regions"
		3521	or die "unable to load regions file\n";
		3522
		3523	for (cf::region::list) {
		3524	$_->{match} = qr/$_->{match}/
		3525	if exists $_->{match};
		3526	}
		3527	}
		3528
		3529	sub reload_facedata {
		3530	load_facedata "$DATADIR/facedata"
		3531	or die "unable to load facedata\n";
		3532	}
		3533
		3534	sub reload_archetypes {
		3535	load_resource_file "$DATADIR/archetypes"
		3536	or die "unable to load archetypes\n";
		3537	}
		3538
		3539	sub reload_treasures {
		3540	load_resource_file "$DATADIR/treasures"
		3541	or die "unable to load treasurelists\n";
		3542	}
		3543
		3544	sub reload_sound {
		3545	trace "loading sound config from $DATADIR/sound\n";
		3546
		3547	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3548	or die "$DATADIR/sound $!";
		3549
		3550	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3551
		3552	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3553	my $sound = $soundconf->{compat}[$_]
		3554	or next;
		3555
		3556	my $face = cf::face::find "sound/$sound->[1]";
		3557	cf::sound::set $sound->[0] => $face;
		3558	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3559	}
		3560
		3561	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3562	my $face = cf::face::find "sound/$v";
		3563	cf::sound::set $k => $face;
		3564	}
		3565	}
		3566
		3567	sub reload_resources {
		3568	trace "reloading resource files...\n";
		3569
		3570	reload_facedata;
		3571	reload_sound;
		3572	reload_archetypes;
		3573	reload_regions;
		3574	reload_treasures;
		3575
		3576	trace "finished reloading resource files\n";
		3577	}
		3578
		3579	sub reload_config {
		3580	trace "reloading config file...\n";
		3581
1979	open my $fh, "<:utf8", cf::confdir . "/config"	3582	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	3583	or return;
1981		3584
1982	local $/;	3585	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	3586	*CFG = YAML::XS::Load scalar <$fh>;
		3587
		3588	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3589
		3590	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3591	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3592
		3593	if (exists $CFG{mlockall}) {
		3594	eval {
		3595	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3596	and die "WARNING: m(un)lockall failed: $!\n";
		3597	};
		3598	warn $@ if $@;
		3599	}
		3600
		3601	trace "finished reloading resource files\n";
		3602	}
		3603
		3604	sub pidfile() {
		3605	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3606	or die "$PIDFILE: $!";
		3607	flock $fh, &Fcntl::LOCK_EX
		3608	or die "$PIDFILE: flock: $!";
		3609	$fh
		3610	}
		3611
		3612	# make sure only one server instance is running at any one time
		3613	sub atomic {
		3614	my $fh = pidfile;
		3615
		3616	my $pid = <$fh>;
		3617	kill 9, $pid if $pid > 0;
		3618
		3619	seek $fh, 0, 0;
		3620	print $fh $$;
		3621	}
		3622
		3623	sub main_loop {
		3624	trace "EV::loop starting\n";
		3625	if (1) {
		3626	EV::loop;
		3627	}
		3628	trace "EV::loop returned\n";
		3629	goto &main_loop unless $REALLY_UNLOOP;
1984	}	3630	}
1985		3631
1986	sub main {	3632	sub main {
		3633	cf::init_globals; # initialise logging
		3634
		3635	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3636	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3637	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3638	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3639
		3640	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3641
1987	# we must not ever block the main coroutine	3642	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3643	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3644	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	3645	(async {
1991	Event::one_event;	3646	$Coro::current->{desc} = "IDLE BUG HANDLER";
1992	})->();	3647	EV::loop EV::LOOP_ONESHOT;
		3648	})->prio (Coro::PRIO_MAX);
1993	};	3649	};
1994		3650
1995	cfg_load;	3651	evthread_start IO::AIO::poll_fileno;
1996	db_load;	3652
		3653	cf::sync_job {
		3654	init_inc;
		3655
		3656	cf::init_experience;
		3657	cf::init_anim;
		3658	cf::init_attackmess;
		3659	cf::init_dynamic;
		3660
		3661	cf::load_settings;
		3662	cf::load_materials;
		3663
		3664	reload_resources;
		3665	reload_config;
		3666	db_init;
		3667
		3668	cf::init_uuid;
		3669	cf::init_signals;
		3670	cf::init_skills;
		3671
		3672	cf::init_beforeplay;
		3673
		3674	atomic;
		3675
1997	load_extensions;	3676	load_extensions;
1998	Event::loop;	3677
		3678	utime time, time, $RUNTIMEFILE;
		3679
		3680	# no (long-running) fork's whatsoever before this point(!)
		3681	use POSIX ();
		3682	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3683
		3684	(pop @POST_INIT)->(0) while @POST_INIT;
		3685	};
		3686
		3687	cf::object::thawer::errors_are_fatal 0;
		3688	info "parse errors in files are no longer fatal from this point on.\n";
		3689
		3690	my $free_main; $free_main = EV::idle sub {
		3691	undef $free_main;
		3692	undef &main; # free gobs of memory :)
		3693	};
		3694
		3695	goto &main_loop;
1999	}	3696	}
2000		3697
2001	#############################################################################	3698	#############################################################################
2002	# initialisation	3699	# initialisation and cleanup
2003		3700
		3701	# install some emergency cleanup handlers
		3702	BEGIN {
		3703	our %SIGWATCHER = ();
		3704	for my $signal (qw(INT HUP TERM)) {
		3705	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3706	cf::cleanup "SIG$signal";
		3707	};
		3708	}
		3709	}
		3710
		3711	sub write_runtime_sync {
		3712	my $t0 = AE::time;
		3713
		3714	# first touch the runtime file to show we are still running:
		3715	# the fsync below can take a very very long time.
		3716
		3717	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3718
		3719	my $guard = cf::lock_acquire "write_runtime";
		3720
		3721	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3722	or return;
		3723
		3724	my $value = $cf::RUNTIME + 90 + 10;
		3725	# 10 is the runtime save interval, for a monotonic clock
		3726	# 60 allows for the watchdog to kill the server.
		3727
		3728	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3729	and return;
		3730
		3731	# always fsync - this file is important
		3732	aio_fsync $fh
		3733	and return;
		3734
		3735	# touch it again to show we are up-to-date
		3736	aio_utime $fh, undef, undef;
		3737
		3738	close $fh
		3739	or return;
		3740
		3741	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3742	and return;
		3743
		3744	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3745
		3746	1
		3747	}
		3748
		3749	our $uuid_lock;
		3750	our $uuid_skip;
		3751
		3752	sub write_uuid_sync($) {
		3753	$uuid_skip ||= $_[0];
		3754
		3755	return if $uuid_lock;
		3756	local $uuid_lock = 1;
		3757
		3758	my $uuid = "$LOCALDIR/uuid";
		3759
		3760	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3761	or return;
		3762
		3763	my $value = uuid_seq uuid_cur;
		3764
		3765	unless ($value) {
		3766	info "cowardly refusing to write zero uuid value!\n";
		3767	return;
		3768	}
		3769
		3770	my $value = uuid_str $value + $uuid_skip;
		3771	$uuid_skip = 0;
		3772
		3773	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3774	and return;
		3775
		3776	# always fsync - this file is important
		3777	aio_fsync $fh
		3778	and return;
		3779
		3780	close $fh
		3781	or return;
		3782
		3783	aio_rename "$uuid~", $uuid
		3784	and return;
		3785
		3786	trace "uuid file written ($value).\n";
		3787
		3788	1
		3789
		3790	}
		3791
		3792	sub write_uuid($$) {
		3793	my ($skip, $sync) = @_;
		3794
		3795	$sync ? write_uuid_sync $skip
		3796	: async { write_uuid_sync $skip };
		3797	}
		3798
		3799	sub emergency_save() {
		3800	my $freeze_guard = cf::freeze_mainloop;
		3801
		3802	info "emergency_perl_save: enter\n";
		3803
		3804	# this is a trade-off: we want to be very quick here, so
		3805	# save all maps without fsync, and later call a global sync
		3806	# (which in turn might be very very slow)
		3807	local $USE_FSYNC = 0;
		3808
		3809	cf::sync_job {
		3810	cf::write_runtime_sync; # external watchdog should not bark
		3811
		3812	# use a peculiar iteration method to avoid tripping on perl
		3813	# refcount bugs in for. also avoids problems with players
		3814	# and maps saved/destroyed asynchronously.
		3815	info "emergency_perl_save: begin player save\n";
		3816	for my $login (keys %cf::PLAYER) {
		3817	my $pl = $cf::PLAYER{$login} or next;
		3818	$pl->valid or next;
		3819	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3820	$pl->save;
		3821	}
		3822	info "emergency_perl_save: end player save\n";
		3823
		3824	cf::write_runtime_sync; # external watchdog should not bark
		3825
		3826	info "emergency_perl_save: begin map save\n";
		3827	for my $path (keys %cf::MAP) {
		3828	my $map = $cf::MAP{$path} or next;
		3829	$map->valid or next;
		3830	$map->save;
		3831	}
		3832	info "emergency_perl_save: end map save\n";
		3833
		3834	cf::write_runtime_sync; # external watchdog should not bark
		3835
		3836	info "emergency_perl_save: begin database checkpoint\n";
		3837	BDB::db_env_txn_checkpoint $DB_ENV;
		3838	info "emergency_perl_save: end database checkpoint\n";
		3839
		3840	info "emergency_perl_save: begin write uuid\n";
		3841	write_uuid_sync 1;
		3842	info "emergency_perl_save: end write uuid\n";
		3843
		3844	cf::write_runtime_sync; # external watchdog should not bark
		3845
		3846	trace "emergency_perl_save: syncing database to disk";
		3847	BDB::db_env_txn_checkpoint $DB_ENV;
		3848
		3849	info "emergency_perl_save: starting sync\n";
		3850	IO::AIO::aio_sync sub {
		3851	info "emergency_perl_save: finished sync\n";
		3852	};
		3853
		3854	cf::write_runtime_sync; # external watchdog should not bark
		3855
		3856	trace "emergency_perl_save: flushing outstanding aio requests";
		3857	while (IO::AIO::nreqs || BDB::nreqs) {
		3858	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3859	}
		3860
		3861	cf::write_runtime_sync; # external watchdog should not bark
		3862	};
		3863
		3864	info "emergency_perl_save: leave\n";
		3865	}
		3866
		3867	sub post_cleanup {
		3868	my ($make_core) = @_;
		3869
		3870	IO::AIO::flush;
		3871
		3872	error Carp::longmess "post_cleanup backtrace"
		3873	if $make_core;
		3874
		3875	my $fh = pidfile;
		3876	unlink $PIDFILE if <$fh> == $$;
		3877	}
		3878
		3879	# a safer delete_package, copied from Symbol
		3880	sub clear_package($) {
		3881	my $pkg = shift;
		3882
		3883	# expand to full symbol table name if needed
		3884	unless ($pkg =~ /^main::.*::$/) {
		3885	$pkg = "main$pkg" if $pkg =~ /^::/;
		3886	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3887	$pkg .= '::' unless $pkg =~ /::$/;
		3888	}
		3889
		3890	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3891	my $stem_symtab = *{$stem}{HASH};
		3892
		3893	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3894	or return;
		3895
		3896	# clear all symbols
		3897	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3898	for my $name (keys %$leaf_symtab) {
		3899	_gv_clear *{"$pkg$name"};
		3900	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3901	}
		3902	}
		3903
2004	sub reload() {	3904	sub do_reload_perl() {
2005	# can/must only be called in main	3905	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3906	if (in_main) {
2007	warn "can only reload from main coroutine\n";	3907	error "can only reload from main coroutine";
2008	return;	3908	return;
2009	}	3909	}
2010		3910
		3911	return if $RELOAD++;
		3912
		3913	my $t1 = AE::time;
		3914
		3915	while ($RELOAD) {
2011	warn "reloading...";	3916	info "reloading...";
2012		3917
2013	local $FREEZE = 1;	3918	trace "entering sync_job";
		3919
		3920	cf::sync_job {
2014	cf::emergency_save;	3921	cf::emergency_save;
2015		3922
2016	eval {
2017	# if anything goes wrong in here, we should simply crash as we already saved
2018
2019	# cancel all watchers
2020	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}
2023
2024	# cancel all extension coros	3923	trace "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	3924	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	3925	%EXT_CORO = ();
2027		3926
2028	# unload all extensions	3927	trace "removing commands";
2029	for (@exts) {	3928	%COMMAND = ();
2030	warn "unloading <$_>";
2031	unload_extension $_;
2032	}
2033		3929
2034	# unload all modules loaded from $LIBDIR	3930	trace "removing ext/exti commands";
2035	while (my ($k, $v) = each %INC) {	3931	%EXTCMD = ();
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3932	%EXTICMD = ();
2037		3933
2038	warn "removing <$k>";	3934	trace "unloading/nuking all extensions";
2039	delete $INC{$k};	3935	for my $pkg (@EXTS) {
		3936	trace "... unloading $pkg";
2040		3937
2041	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;
2043
2044	if (my $cb = $k->can ("unload_module")) {	3938	if (my $cb = $pkg->can ("unload")) {
		3939	eval {
2045	$cb->();	3940	$cb->($pkg);
		3941	1
		3942	} or error "$pkg unloaded, but with errors: $@";
		3943	}
		3944
		3945	trace "... clearing $pkg";
		3946	clear_package $pkg;
2046	}	3947	}
2047		3948
2048	Symbol::delete_package $k;	3949	trace "unloading all perl modules loaded from $LIBDIR";
		3950	while (my ($k, $v) = each %INC) {
		3951	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3952
		3953	trace "... unloading $k";
		3954	delete $INC{$k};
		3955
		3956	$k =~ s/\.pm$//;
		3957	$k =~ s/\//::/g;
		3958
		3959	if (my $cb = $k->can ("unload_module")) {
		3960	$cb->();
		3961	}
		3962
		3963	clear_package $k;
2049	}	3964	}
2050		3965
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	3966	trace "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	3967	clear_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3968	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		3969
2059	# remove register_script_function callbacks	3970	trace "unloading cf.pm \"a bit\"";
2060	# TODO
2061
2062	# unload cf.pm "a bit"
2063	delete $INC{"cf.pm"};	3971	delete $INC{"cf.pm"};
		3972	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2064		3973
2065	# don't, removes xs symbols, too,	3974	# don't, removes xs symbols, too,
2066	# and global variables created in xs	3975	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	3976	#clear_package __PACKAGE__;
2068		3977
2069	# reload cf.pm	3978	info "unload completed, starting to reload now";
		3979
2070	warn "reloading cf.pm";	3980	trace "reloading cf.pm";
2071	require cf;	3981	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3982	cf::_connect_to_perl_1;
2073		3983
2074	# load config and database again	3984	trace "loading config and database again";
2075	cf::cfg_load;	3985	cf::reload_config;
2076	cf::db_load;
2077		3986
2078	# load extensions
2079	warn "load extensions";	3987	trace "loading extensions";
2080	cf::load_extensions;	3988	cf::load_extensions;
2081		3989
2082	# reattach attachments to objects	3990	if ($REATTACH_ON_RELOAD) {
2083	warn "reattach";	3991	trace "reattaching attachments to objects/players";
2084	_global_reattach;	3992	_global_reattach; # objects, sockets
		3993	trace "reattaching attachments to maps";
		3994	reattach $_ for values %MAP;
		3995	trace "reattaching attachments to players";
		3996	reattach $_ for values %PLAYER;
		3997	}
		3998
		3999	trace "running post_init jobs";
		4000	(pop @POST_INIT)->(1) while @POST_INIT;
		4001
		4002	trace "leaving sync_job";
		4003
		4004	1
		4005	} or do {
		4006	error $@;
		4007	cf::cleanup "error while reloading, exiting.";
		4008	};
		4009
		4010	info "reloaded";
		4011	--$RELOAD;
		4012	}
		4013
		4014	$t1 = AE::time - $t1;
		4015	info "reload completed in ${t1}s\n";
		4016	};
		4017
		4018	our $RELOAD_WATCHER; # used only during reload
		4019
		4020	sub reload_perl() {
		4021	# doing reload synchronously and two reloads happen back-to-back,
		4022	# coro crashes during coro_state_free->destroy here.
		4023
		4024	$RELOAD_WATCHER ||= cf::async {
		4025	Coro::AIO::aio_wait cache_extensions;
		4026
		4027	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4028	do_reload_perl;
		4029	undef $RELOAD_WATCHER;
		4030	};
2085	};	4031	};
2086
2087	if ($@) {
2088	warn $@;
2089	warn "error while reloading, exiting.";
2090	exit 1;
2091	}
2092
2093	warn "reloaded successfully";
2094	};
2095
2096	#############################################################################
2097
2098	unless ($LINK_MAP) {
2099	$LINK_MAP = cf::map::new;
2100
2101	$LINK_MAP->width (41);
2102	$LINK_MAP->height (41);
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,
2111	cb => sub {
2112	$_[0]->w->cancel;
2113
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});
2132
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	4032	}
2138
2139	register "<global>", __PACKAGE__;
2140		4033
2141	register_command "reload" => sub {	4034	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	4035	my ($who, $arg) = @_;
2143		4036
2144	if ($who->flag (FLAG_WIZ)) {	4037	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	4038	$who->message ("reloading server.");
		4039	async {
		4040	$Coro::current->{desc} = "perl_reload";
		4041	reload_perl;
		4042	};
2148	}	4043	}
2149	};	4044	};
2150		4045
2151	unshift @INC, $LIBDIR;	4046	#############################################################################
2152		4047
2153	$TICK_WATCHER = Event->timer (	4048	my $bug_warning = 0;
2154	reentrant => 0,	4049
2155	prio => 0,	4050	our @WAIT_FOR_TICK;
2156	at => $NEXT_TICK || $TICK,	4051	our @WAIT_FOR_TICK_BEGIN;
2157	data => WF_AUTOCANCEL,	4052
2158	cb => sub {	4053	sub wait_for_tick {
2159	unless ($FREEZE) {	4054	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4055
		4056	my $signal = new Coro::Signal;
		4057	push @WAIT_FOR_TICK, $signal;
		4058	$signal->wait;
		4059	}
		4060
		4061	sub wait_for_tick_begin {
		4062	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4063
		4064	my $signal = new Coro::Signal;
		4065	push @WAIT_FOR_TICK_BEGIN, $signal;
		4066	$signal->wait;
		4067	}
		4068
		4069	sub tick {
		4070	if ($Coro::current != $Coro::main) {
		4071	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4072	unless ++$bug_warning > 10;
		4073	return;
		4074	}
		4075
2160	cf::server_tick; # one server iteration	4076	cf::server_tick; # one server iteration
2161	$RUNTIME += $TICK;
2162	}
2163		4077
2164	$NEXT_TICK += $TICK;	4078	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2165		4079
2166	# if we are delayed by four ticks or more, skip them all	4080	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4081	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2168		4082	Coro::async_pool {
2169	$TICK_WATCHER->at ($NEXT_TICK);	4083	$Coro::current->{desc} = "runtime saver";
2170	$TICK_WATCHER->start;
2171	},
2172	);
2173
2174	IO::AIO::max_poll_time $TICK * 0.2;
2175
2176	Event->io (
2177	fd => IO::AIO::poll_fileno,
2178	poll => 'r',
2179	prio => 5,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,
2186	after => 0,
2187	interval => 10,
2188	cb => sub {
2189	(Coro::unblock_sub {
2190	write_runtime	4084	write_runtime_sync
2191	or warn "ERROR: unable to write runtime file: $!";	4085	or error "ERROR: unable to write runtime file: $!";
2192	})->();	4086	};
2193	},	4087	}
2194	);	4088
		4089	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4090	$sig->send;
		4091	}
		4092	while (my $sig = shift @WAIT_FOR_TICK) {
		4093	$sig->send;
		4094	}
		4095
		4096	$LOAD = ($NOW - $TICK_START) / $TICK;
		4097	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4098
		4099	if (0) {
		4100	if ($NEXT_TICK) {
		4101	my $jitter = $TICK_START - $NEXT_TICK;
		4102	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4103	debug "jitter $JITTER\n";#d#
		4104	}
		4105	}
		4106	}
		4107
		4108	{
		4109	# configure BDB
		4110
		4111	BDB::min_parallel 16;
		4112	BDB::max_poll_reqs $TICK * 0.1;
		4113	$AnyEvent::BDB::WATCHER->priority (1);
		4114
		4115	unless ($DB_ENV) {
		4116	$DB_ENV = BDB::db_env_create;
		4117	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4118	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4119	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4120	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4121	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4122
		4123	cf::sync_job {
		4124	eval {
		4125	BDB::db_env_open
		4126	$DB_ENV,
		4127	$BDBDIR,
		4128	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4129	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4130	0666;
		4131
		4132	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4133	};
		4134
		4135	cf::cleanup "db_env_open(db): $@" if $@;
		4136	};
		4137	}
		4138
		4139	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4140	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4141	};
		4142	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4143	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4144	};
		4145	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4146	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4147	};
		4148	}
		4149
		4150	{
		4151	# configure IO::AIO
		4152
		4153	IO::AIO::min_parallel 8;
		4154	IO::AIO::max_poll_time $TICK * 0.1;
		4155	undef $AnyEvent::AIO::WATCHER;
		4156	}
		4157
		4158	my $_log_backtrace;
		4159
		4160	sub _log_backtrace {
		4161	my ($msg, @addr) = @_;
		4162
		4163	$msg =~ s/\n//;
		4164
		4165	# limit the # of concurrent backtraces
		4166	if ($_log_backtrace < 2) {
		4167	++$_log_backtrace;
		4168	my $perl_bt = Carp::longmess $msg;
		4169	async {
		4170	$Coro::current->{desc} = "abt $msg";
		4171
		4172	my @bt = fork_call {
		4173	@addr = map { sprintf "%x", $_ } @addr;
		4174	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4175	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4176	or die "addr2line: $!";
		4177
		4178	my @funcs;
		4179	my @res = <$fh>;
		4180	chomp for @res;
		4181	while (@res) {
		4182	my ($func, $line) = splice @res, 0, 2, ();
		4183	push @funcs, "[$func] $line";
		4184	}
		4185
		4186	@funcs
		4187	};
		4188
		4189	LOG llevInfo, "[ABT] $perl_bt\n";
		4190	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4191	LOG llevInfo, "[ABT] $_\n" for @bt;
		4192	--$_log_backtrace;
		4193	};
		4194	} else {
		4195	LOG llevInfo, "[ABT] $msg\n";
		4196	LOG llevInfo, "[ABT] [suppressed]\n";
		4197	}
		4198	}
		4199
		4200	# load additional modules
		4201	require "cf/$_.pm" for @EXTRA_MODULES;
		4202	cf::_connect_to_perl_2;
		4203
		4204	END { cf::emergency_save }
2195		4205
2196	1	4206	1
2197		4207

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