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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.126 by root, Tue Jan 2 23:12:47 2007 UTC vs.
Revision 1.535 by root, Thu Apr 29 08:21:28 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
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3;	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
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 5.10.0; use strict 'vars', 'subs'; use utf8;\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 $pkg = caller;
		1852
		1853	no strict;
		1854	push @{"$pkg\::ISA"}, __PACKAGE__;
		1855
		1856	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1857	}
		1858
		1859	# also paths starting with '/'
		1860	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1861
		1862	sub thawer_merge {
		1863	my ($self, $merge) = @_;
		1864
		1865	# we have to keep some variables in memory intact
		1866	local $self->{path};
		1867	local $self->{load_path};
		1868
		1869	$self->SUPER::thawer_merge ($merge);
		1870	}
		1871
		1872	sub normalise {
1163	my ($path) = @_;	1873	my ($path, $base) = @_;
		1874
		1875	$path = "$path"; # make sure its a string
		1876
		1877	$path =~ s/\.map$//;
		1878
		1879	# map plan:
		1880	#
		1881	# /! non-realised random map exit (special hack!)
		1882	# {... are special paths that are not being touched
		1883	# ?xxx/... are special absolute paths
		1884	# ?random/... random maps
		1885	# /... normal maps
		1886	# ~user/... per-player map of a specific user
		1887
		1888	$path =~ s/$PATH_SEP/\//go;
		1889
		1890	# treat it as relative path if it starts with
		1891	# something that looks reasonable
		1892	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1893	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1894
		1895	$base =~ s{[^/]+/?$}{};
		1896	$path = "$base/$path";
		1897	}
		1898
		1899	for ($path) {
		1900	redo if s{//}{/};
		1901	redo if s{/\.?/}{/};
		1902	redo if s{/[^/]+/\.\./}{/};
		1903	}
		1904
		1905	$path
		1906	}
		1907
		1908	sub new_from_path {
		1909	my (undef, $path, $base) = @_;
		1910
		1911	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1912
		1913	$path = normalise $path, $base;
		1914
		1915	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1916	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1917	my $self = bless cf::map::new, $pkg;
		1918	$self->{path} = $path; $self->path ($path);
		1919	$self->init; # pass $1 etc.
		1920	return $self;
		1921	}
		1922	}
		1923
		1924	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1925	()
		1926	}
		1927
		1928	sub init {
		1929	my ($self) = @_;
		1930
		1931	$self
		1932	}
		1933
		1934	sub as_string {
		1935	my ($self) = @_;
		1936
		1937	"$self->{path}"
		1938	}
		1939
		1940	# the displayed name, this is a one way mapping
		1941	sub visible_name {
		1942	&as_string
		1943	}
		1944
		1945	# the original (read-only) location
		1946	sub load_path {
		1947	my ($self) = @_;
		1948
		1949	"$MAPDIR/$self->{path}.map"
		1950	}
		1951
		1952	# the temporary/swap location
		1953	sub save_path {
		1954	my ($self) = @_;
		1955
		1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1957	"$TMPDIR/$path.map"
		1958	}
		1959
		1960	# the unique path, undef == no special unique path
		1961	sub uniq_path {
		1962	my ($self) = @_;
		1963
		1964	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1965	"$UNIQUEDIR/$path"
		1966	}
		1967
		1968	sub decay_objects {
		1969	my ($self) = @_;
		1970
		1971	return if $self->{deny_reset};
		1972
		1973	$self->do_decay_objects;
		1974	}
		1975
		1976	sub unlink_save {
		1977	my ($self) = @_;
		1978
		1979	utf8::encode (my $save = $self->save_path);
		1980	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1981	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1982	}
		1983
		1984	sub load_header_from($) {
		1985	my ($self, $path) = @_;
1164		1986
1165	utf8::encode $path;	1987	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1988	my $f = new_from_file cf::object::thawer $path
1167	or return;	1989	or return;
1168		1990
1169	my $map = cf::map::new	1991	$self->_load_header ($f)
1170	or return;	1992	or return;
1171		1993
1172	$map->load_header ($path)	1994	local $MAP_LOADING{$self->{path}} = $self;
		1995	$f->resolve_delayed_derefs;
		1996
		1997	$self->{load_path} = $path;
		1998
		1999	1
		2000	}
		2001
		2002	sub load_header_orig {
		2003	my ($self) = @_;
		2004
		2005	$self->load_header_from ($self->load_path)
		2006	}
		2007
		2008	sub load_header_temp {
		2009	my ($self) = @_;
		2010
		2011	$self->load_header_from ($self->save_path)
		2012	}
		2013
		2014	sub prepare_temp {
		2015	my ($self) = @_;
		2016
		2017	$self->last_access ((delete $self->{last_access})
		2018	|| $cf::RUNTIME); #d#
		2019	# safety
		2020	$self->{instantiate_time} = $cf::RUNTIME
		2021	if $self->{instantiate_time} > $cf::RUNTIME;
		2022	}
		2023
		2024	sub prepare_orig {
		2025	my ($self) = @_;
		2026
		2027	$self->{load_original} = 1;
		2028	$self->{instantiate_time} = $cf::RUNTIME;
		2029	$self->last_access ($cf::RUNTIME);
		2030	$self->instantiate;
		2031	}
		2032
		2033	sub load_header {
		2034	my ($self) = @_;
		2035
		2036	if ($self->load_header_temp) {
		2037	$self->prepare_temp;
		2038	} else {
		2039	$self->load_header_orig
1173	or return;	2040	or return;
		2041	$self->prepare_orig;
		2042	}
1174		2043
1175	$map->{load_path} = $path;	2044	$self->{deny_reset} = 1
		2045	if $self->no_reset;
1176		2046
1177	$map	2047	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	2048	unless $self->default_region;
1179		2049
		2050	1
		2051	}
		2052
1180	sub find_map;	2053	sub find;
1181	sub find_map {	2054	sub find {
1182	my ($path, $origin) = @_;	2055	my ($path, $origin) = @_;
1183		2056
1184	#warn "find_map<$path,$origin>\n";#d#
1185
1186	$path = new cf::path $path, $origin && $origin->path;	2057	$path = normalise $path, $origin && $origin->path;
1187	my $key = $path->as_string;
1188		2058
1189	cf::lock_wait "map_find:$key";	2059	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1190
1191	$cf::MAP{$key} || do {
1192	my $guard = cf::lock_acquire "map_find:$key";	2060	my $guard2 = cf::lock_acquire "map_find:$path";
1193		2061
1194	# do it the slow way	2062	$cf::MAP{$path} || do {
1195	my $map = try_load_header $path->save_path;	2063	my $map = new_from_path cf::map $path
1196
1197	if ($map) {
1198	# safety
1199	$map->{instantiate_time} = $cf::RUNTIME
1200	if $map->{instantiate_time} > $cf::RUNTIME;
1201	} else {
1202	if (my $rmp = $path->random_map_params) {
1203	$map = generate_random_map $key, $rmp;
1204	} else {
1205	$map = try_load_header $path->load_path;
1206	}
1207
1208	$map or return;	2064	or return;
1209		2065
1210	$map->{load_original} = 1;
1211	$map->{instantiate_time} = $cf::RUNTIME;
1212	$map->instantiate;
1213
1214	# per-player maps become, after loading, normal maps
1215	$map->per_player (0) if $path->{user_rel};
1216	}
1217
1218	$map->path ($key);
1219	$map->{path} = $path;
1220	$map->{last_save} = $cf::RUNTIME;	2066	$map->{last_save} = $cf::RUNTIME;
1221	$map->last_access ($cf::RUNTIME);
1222		2067
1223	if ($map->should_reset) {	2068	$map->load_header
		2069	or return;
		2070
		2071	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2072	# doing this can freeze the server in a sync job, obviously
		2073	#$cf::WAIT_FOR_TICK->wait;
		2074	undef $guard2;
		2075	undef $guard1;
1224	$map->reset;	2076	$map->reset;
1225	undef $guard;	2077	return find $path;
1226	$map = find_map $path
1227	or return;
1228	}	2078	}
1229		2079
1230	$cf::MAP{$key} = $map	2080	$cf::MAP{$path} = $map
1231	}	2081	}
1232	}	2082	}
		2083
		2084	sub pre_load { }
		2085	#sub post_load { } # XS
1233		2086
1234	sub load {	2087	sub load {
1235	my ($self) = @_;	2088	my ($self) = @_;
1236		2089
		2090	local $self->{deny_reset} = 1; # loading can take a long time
		2091
1237	my $path = $self->{path};	2092	my $path = $self->{path};
		2093
		2094	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2095	my $guard = cf::lock_acquire "map_data:$path";
1239		2096
		2097	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2098	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2099
1242	$self->in_memory (cf::MAP_LOADING);	2100	$self->in_memory (cf::MAP_LOADING);
1243		2101
1244	$self->alloc;	2102	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	2103
		2104	$self->pre_load;
		2105	cf::cede_to_tick;
		2106
		2107	my $f = new_from_file cf::object::thawer $self->{load_path};
		2108	$f->skip_block;
		2109	$self->_load_objects ($f)
1246	or return;	2110	or return;
1247		2111
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2112	$self->post_load_original
1249	if delete $self->{load_original};	2113	if delete $self->{load_original};
1250		2114
1251	if (my $uniq = $path->uniq_path) {	2115	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2116	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2117	unless (aio_stat $uniq) {
		2118	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2119	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2120	$self->_load_objects ($f);
		2121	$f->resolve_delayed_derefs;
		2122	}
1256	}	2123	}
1257	}	2124	}
1258		2125
		2126	$f->resolve_delayed_derefs;
		2127
		2128	cf::cede_to_tick;
1259	# now do the right thing for maps	2129	# now do the right thing for maps
1260	$self->link_multipart_objects;	2130	$self->link_multipart_objects;
1261
1262	if ($self->{path}->is_style_map) {
1263	$self->{deny_save} = 1;
1264	$self->{deny_reset} = 1;
1265	} else {
1266	$self->fix_auto_apply;
1267	$self->decay_objects;
1268	$self->update_buttons;
1269	$self->set_darkness_map;
1270	$self->difficulty ($self->estimate_difficulty)	2131	$self->difficulty ($self->estimate_difficulty)
1271	unless $self->difficulty;	2132	unless $self->difficulty;
		2133	cf::cede_to_tick;
		2134
		2135	unless ($self->{deny_activate}) {
		2136	$self->decay_objects;
		2137	$self->fix_auto_apply;
		2138	$self->update_buttons;
		2139	cf::cede_to_tick;
1272	$self->activate;	2140	$self->activate;
1273	}	2141	}
1274		2142
		2143	$self->{last_save} = $cf::RUNTIME;
		2144	$self->last_access ($cf::RUNTIME);
		2145
1275	$self->in_memory (cf::MAP_IN_MEMORY);	2146	$self->in_memory (cf::MAP_ACTIVE);
1276	}	2147	}
1277		2148
1278	sub load_map_sync {	2149	$self->post_load;
		2150	}
		2151
		2152	# customize the map for a given player, i.e.
		2153	# return the _real_ map. used by e.g. per-player
		2154	# maps to change the path to ~playername/mappath
		2155	sub customise_for {
		2156	my ($self, $ob) = @_;
		2157
		2158	return find "~" . $ob->name . "/" . $self->{path}
		2159	if $self->per_player;
		2160
		2161	# return find "?party/" . $ob->name . "/" . $self->{path}
		2162	# if $self->per_party;
		2163
		2164	$self
		2165	}
		2166
		2167	# find and load all maps in the 3x3 area around a map
		2168	sub load_neighbours {
		2169	my ($map) = @_;
		2170
		2171	my @neigh; # diagonal neighbours
		2172
		2173	for (0 .. 3) {
		2174	my $neigh = $map->tile_path ($_)
		2175	or next;
		2176	$neigh = find $neigh, $map
		2177	or next;
		2178	$neigh->load;
		2179
		2180	# now find the diagonal neighbours
		2181	push @neigh,
		2182	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2183	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2184	}
		2185
		2186	for (grep defined $_->[0], @neigh) {
		2187	my ($path, $origin) = @$_;
		2188	my $neigh = find $path, $origin
		2189	or next;
		2190	$neigh->load;
		2191	}
		2192	}
		2193
		2194	sub find_sync {
1279	my ($path, $origin) = @_;	2195	my ($path, $origin) = @_;
1280		2196
1281	#warn "load_map_sync<$path, $origin>\n";#d#	2197	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2198	if $Coro::current == $Coro::main;
1282		2199
1283	cf::sync_job {	2200	find $path, $origin
1284	my $map = cf::map::find_map $path, $origin	2201	}
1285	or return;	2202
		2203	sub do_load_sync {
		2204	my ($map) = @_;
		2205
		2206	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2207	if $Coro::current == $Coro::main;
		2208
1286	$map->load;	2209	$map->load;
1287	$map	2210	}
		2211
		2212	our %MAP_PREFETCH;
		2213	our $MAP_PREFETCHER = undef;
		2214
		2215	sub find_async {
		2216	my ($path, $origin, $load) = @_;
		2217
		2218	$path = normalise $path, $origin && $origin->{path};
		2219
		2220	if (my $map = $cf::MAP{$path}) {
		2221	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2222	}
		2223
		2224	$MAP_PREFETCH{$path} |= $load;
		2225
		2226	$MAP_PREFETCHER ||= cf::async {
		2227	$Coro::current->{desc} = "map prefetcher";
		2228
		2229	while (%MAP_PREFETCH) {
		2230	while (my ($k, $v) = each %MAP_PREFETCH) {
		2231	if (my $map = find $k) {
		2232	$map->load if $v;
		2233	}
		2234
		2235	delete $MAP_PREFETCH{$k};
		2236	}
		2237	}
		2238	undef $MAP_PREFETCHER;
		2239	};
		2240	$MAP_PREFETCHER->prio (6);
		2241
		2242	()
		2243	}
		2244
		2245	# common code, used by both ->save and ->swapout
		2246	sub _save {
		2247	my ($self) = @_;
		2248
		2249	$self->{last_save} = $cf::RUNTIME;
		2250
		2251	return unless $self->dirty;
		2252
		2253	my $save = $self->save_path; utf8::encode $save;
		2254	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2255
		2256	$self->{load_path} = $save;
		2257
		2258	return if $self->{deny_save};
		2259
		2260	local $self->{last_access} = $self->last_access;#d#
		2261
		2262	cf::async {
		2263	$Coro::current->{desc} = "map player save";
		2264	$_->contr->save for $self->players;
		2265	};
		2266
		2267	cf::get_slot 0.02;
		2268
		2269	if ($uniq) {
		2270	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2271	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2272	} else {
		2273	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1288	}	2274	}
1289	}	2275	}
1290		2276
1291	sub save {	2277	sub save {
1292	my ($self) = @_;	2278	my ($self) = @_;
1293		2279
1294	$self->{last_save} = $cf::RUNTIME;	2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2281
1296	return unless $self->dirty;	2282	$self->_save;
1297
1298	my $save = $self->{path}->save_path; utf8::encode $save;
1299	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1300
1301	$self->{load_path} = $save;
1302
1303	return if $self->{deny_save};
1304
1305	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}
1311	}	2283	}
1312		2284
1313	sub swap_out {	2285	sub swap_out {
1314	my ($self) = @_;	2286	my ($self) = @_;
1315		2287
		2288	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2289
		2290	return if $self->in_memory != cf::MAP_ACTIVE;
		2291	return if $self->{deny_save};
1316	return if $self->players;	2292	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};
1319		2293
		2294	# first deactivate the map and "unlink" it from the core
		2295	$self->deactivate;
		2296	$_->clear_links_to ($self) for values %cf::MAP;
		2297	$self->in_memory (cf::MAP_SWAPPED);
		2298
		2299	# then atomically save
1320	$self->save;	2300	$self->_save;
		2301
		2302	# then free the map
1321	$self->clear;	2303	$self->clear;
1322	$self->in_memory (cf::MAP_SWAPPED);
1323	}	2304	}
1324		2305
1325	sub reset_at {	2306	sub reset_at {
1326	my ($self) = @_;	2307	my ($self) = @_;
1327		2308
1328	# TODO: safety, remove and allow resettable per-player maps	2309	# TODO: safety, remove and allow resettable per-player maps
1329	return 1e99 if $self->{path}{user_rel};
1330	return 1e99 if $self->{deny_reset};	2310	return 1e99 if $self->{deny_reset};
1331		2311
1332	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2312	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1333	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2313	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1334		2314
…		…
1339	my ($self) = @_;	2319	my ($self) = @_;
1340		2320
1341	$self->reset_at <= $cf::RUNTIME	2321	$self->reset_at <= $cf::RUNTIME
1342	}	2322	}
1343		2323
1344	sub unlink_save {
1345	my ($self) = @_;
1346
1347	utf8::encode (my $save = $self->{path}->save_path);
1348	aioreq_pri 3; IO::AIO::aio_unlink $save;
1349	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1350	}
1351
1352	sub rename {
1353	my ($self, $new_path) = @_;
1354
1355	$self->unlink_save;
1356
1357	delete $cf::MAP{$self->path};
1358	$self->{path} = new cf::path $new_path;
1359	$self->path ($self->{path}->as_string);
1360	$cf::MAP{$self->path} = $self;
1361
1362	$self->save;
1363	}
1364
1365	sub reset {	2324	sub reset {
1366	my ($self) = @_;	2325	my ($self) = @_;
1367		2326
		2327	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2328
1368	return if $self->players;	2329	return if $self->players;
1369	return if $self->{path}{user_rel};#d#
1370		2330
1371	warn "resetting map ", $self->path;#d#	2331	cf::trace "resetting map ", $self->path, "\n";
		2332
		2333	$self->in_memory (cf::MAP_SWAPPED);
		2334
		2335	# need to save uniques path
		2336	unless ($self->{deny_save}) {
		2337	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2338
		2339	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2340	if $uniq;
		2341	}
1372		2342
1373	delete $cf::MAP{$self->path};	2343	delete $cf::MAP{$self->path};
1374		2344
		2345	$self->deactivate;
1375	$_->clear_links_to ($self) for values %cf::MAP;	2346	$_->clear_links_to ($self) for values %cf::MAP;
		2347	$self->clear;
1376		2348
1377	$self->unlink_save;	2349	$self->unlink_save;
1378	$self->destroy;	2350	$self->destroy;
1379	}	2351	}
1380		2352
1381	my $nuke_counter = "aaaa";	2353	my $nuke_counter = "aaaa";
1382		2354
1383	sub nuke {	2355	sub nuke {
1384	my ($self) = @_;	2356	my ($self) = @_;
1385		2357
		2358	{
		2359	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2360
		2361	delete $cf::MAP{$self->path};
		2362
		2363	$self->unlink_save;
		2364
		2365	bless $self, "cf::map::wrap";
		2366	delete $self->{deny_reset};
1386	$self->{deny_save} = 1;	2367	$self->{deny_save} = 1;
1387	$self->reset_timeout (1);	2368	$self->reset_timeout (1);
1388	$self->rename ("{nuke}/" . ($nuke_counter++));	2369	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2370
		2371	$cf::MAP{$self->path} = $self;
		2372	}
		2373
1389	$self->reset; # polite request, might not happen	2374	$self->reset; # polite request, might not happen
1390	}	2375	}
1391		2376
1392	sub customise_for {	2377	=item $maps = cf::map::tmp_maps
1393	my ($map, $ob) = @_;
1394		2378
1395	if ($map->per_player) {	2379	Returns an arrayref with all map paths of currently instantiated and saved
1396	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2380	maps. May block.
		2381
		2382	=cut
		2383
		2384	sub tmp_maps() {
1397	}	2385	[
1398		2386	map {
1399	$map	2387	utf8::decode $_;
		2388	/\.map$/
		2389	? normalise $_
		2390	: ()
		2391	} @{ aio_readdir $TMPDIR or [] }
		2392	]
1400	}	2393	}
1401		2394
1402	sub emergency_save {	2395	=item $maps = cf::map::random_maps
1403	local $cf::FREEZE = 1;
1404		2396
1405	warn "enter emergency map save\n";	2397	Returns an arrayref with all map paths of currently instantiated and saved
		2398	random maps. May block.
1406		2399
1407	cf::sync_job {	2400	=cut
1408	warn "begin emergency map save\n";	2401
1409	$_->save for values %cf::MAP;	2402	sub random_maps() {
		2403	[
		2404	map {
		2405	utf8::decode $_;
		2406	/\.map$/
		2407	? normalise "?random/$_"
		2408	: ()
		2409	} @{ aio_readdir $RANDOMDIR or [] }
		2410	]
		2411	}
		2412
		2413	=item cf::map::unique_maps
		2414
		2415	Returns an arrayref of paths of all shared maps that have
		2416	instantiated unique items. May block.
		2417
		2418	=cut
		2419
		2420	sub unique_maps() {
		2421	[
		2422	map {
		2423	utf8::decode $_;
		2424	s/\.map$//; # TODO future compatibility hack
		2425	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2426	? ()
		2427	: normalise $_
		2428	} @{ aio_readdir $UNIQUEDIR or [] }
		2429	]
		2430	}
		2431
		2432	=item cf::map::static_maps
		2433
		2434	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2435	file in the shared directory excluding F</styles> and F</editor>). May
		2436	block.
		2437
		2438	=cut
		2439
		2440	sub static_maps() {
		2441	my @dirs = "";
		2442	my @maps;
		2443
		2444	while (@dirs) {
		2445	my $dir = shift @dirs;
		2446
		2447	next if $dir eq "/styles" || $dir eq "/editor";
		2448
		2449	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2450	or return;
		2451
		2452	for (@$files) {
		2453	s/\.map$// or next;
		2454	utf8::decode $_;
		2455	push @maps, "$dir/$_";
		2456	}
		2457
		2458	push @dirs, map "$dir/$_", @$dirs;
1410	};	2459	}
1411		2460
1412	warn "end emergency map save\n";	2461	\@maps
		2462	}
		2463
		2464	=back
		2465
		2466	=head3 cf::object
		2467
		2468	=cut
		2469
		2470	package cf::object;
		2471
		2472	=over 4
		2473
		2474	=item $ob->inv_recursive
		2475
		2476	Returns the inventory of the object I<and> their inventories, recursively,
		2477	but I<not> the object itself.
		2478
		2479	=cut
		2480
		2481	sub inv_recursive_;
		2482	sub inv_recursive_ {
		2483	map { $_, inv_recursive_ $_->inv } @_
		2484	}
		2485
		2486	sub inv_recursive {
		2487	inv_recursive_ inv $_[0]
		2488	}
		2489
		2490	=item $ref = $ob->ref
		2491
		2492	Creates and returns a persistent reference to an object that can be stored as a string.
		2493
		2494	=item $ob = cf::object::deref ($refstring)
		2495
		2496	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2497	even if the object actually exists. May block.
		2498
		2499	=cut
		2500
		2501	sub deref {
		2502	my ($ref) = @_;
		2503
		2504	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2505	my ($uuid, $name) = ($1, $2);
		2506	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2507	or return;
		2508	$pl->ob->uuid eq $uuid
		2509	or return;
		2510
		2511	$pl->ob
		2512	} else {
		2513	warn "$ref: cannot resolve object reference\n";
		2514	undef
		2515	}
1413	}	2516	}
1414		2517
1415	package cf;	2518	package cf;
1416		2519
1417	=back	2520	=back
1418
1419		2521
1420	=head3 cf::object::player	2522	=head3 cf::object::player
1421		2523
1422	=over 4	2524	=over 4
1423		2525
…		…
1426	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2528	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1427	can be C<undef>. Does the right thing when the player is currently in a	2529	can be C<undef>. Does the right thing when the player is currently in a
1428	dialogue with the given NPC character.	2530	dialogue with the given NPC character.
1429		2531
1430	=cut	2532	=cut
		2533
		2534	our $SAY_CHANNEL = {
		2535	id => "say",
		2536	title => "Map",
		2537	reply => "say ",
		2538	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2539	};
		2540
		2541	our $CHAT_CHANNEL = {
		2542	id => "chat",
		2543	title => "Chat",
		2544	reply => "chat ",
		2545	tooltip => "Player chat and shouts, global to the server.",
		2546	};
1431		2547
1432	# rough implementation of a future "reply" method that works	2548	# rough implementation of a future "reply" method that works
1433	# with dialog boxes.	2549	# with dialog boxes.
1434	#TODO: the first argument must go, split into a $npc->reply_to ( method	2550	#TODO: the first argument must go, split into a $npc->reply_to ( method
1435	sub cf::object::player::reply($$$;$) {	2551	sub cf::object::player::reply($$$;$) {
…		…
1437		2553
1438	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2554	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1439		2555
1440	if ($self->{record_replies}) {	2556	if ($self->{record_replies}) {
1441	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2557	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2558
1442	} else {	2559	} else {
		2560	my $pl = $self->contr;
		2561
		2562	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2563	my $dialog = $pl->{npc_dialog};
		2564	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2565
		2566	} else {
1443	$msg = $npc->name . " says: $msg" if $npc;	2567	$msg = $npc->name . " says: $msg" if $npc;
1444	$self->message ($msg, $flags);	2568	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2569	}
1445	}	2570	}
		2571	}
		2572
		2573	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2574
		2575	=cut
		2576
		2577	sub cf::object::send_msg {
		2578	my $pl = shift->contr
		2579	or return;
		2580	$pl->send_msg (@_);
1446	}	2581	}
1447		2582
1448	=item $player_object->may ("access")	2583	=item $player_object->may ("access")
1449		2584
1450	Returns wether the given player is authorized to access resource "access"	2585	Returns wether the given player is authorized to access resource "access"
…		…
1463		2598
1464	=item $player_object->enter_link	2599	=item $player_object->enter_link
1465		2600
1466	Freezes the player and moves him/her to a special map (C<{link}>).	2601	Freezes the player and moves him/her to a special map (C<{link}>).
1467		2602
1468	The player should be reaosnably safe there for short amounts of time. You	2603	The player should be reasonably safe there for short amounts of time (e.g.
1469	I<MUST> call C<leave_link> as soon as possible, though.	2604	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2605	though, as the player cannot control the character while it is on the link
		2606	map.
		2607
		2608	Will never block.
1470		2609
1471	=item $player_object->leave_link ($map, $x, $y)	2610	=item $player_object->leave_link ($map, $x, $y)
1472		2611
1473	Moves the player out of the specila link map onto the given map. If the	2612	Moves the player out of the special C<{link}> map onto the specified
1474	map is not valid (or omitted), the player will be moved back to the	2613	map. If the map is not valid (or omitted), the player will be moved back
1475	location he/she was before the call to C<enter_link>, or, if that fails,	2614	to the location he/she was before the call to C<enter_link>, or, if that
1476	to the emergency map position.	2615	fails, to the emergency map position.
1477		2616
1478	Might block.	2617	Might block.
1479		2618
1480	=cut	2619	=cut
		2620
		2621	sub link_map {
		2622	unless ($LINK_MAP) {
		2623	$LINK_MAP = cf::map::find "{link}"
		2624	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2625	$LINK_MAP->load;
		2626	}
		2627
		2628	$LINK_MAP
		2629	}
1481		2630
1482	sub cf::object::player::enter_link {	2631	sub cf::object::player::enter_link {
1483	my ($self) = @_;	2632	my ($self) = @_;
1484		2633
1485	$self->deactivate_recursive;	2634	$self->deactivate_recursive;
1486		2635
1487	return if $self->map == $LINK_MAP;	2636	++$self->{_link_recursion};
		2637
		2638	return if UNIVERSAL::isa $self->map, "ext::map_link";
1488		2639
1489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2640	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1490	if $self->map;	2641	if $self->map && $self->map->{path} ne "{link}";
1491		2642
1492	$self->enter_map ($LINK_MAP, 20, 20);	2643	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1493	}	2644	}
1494		2645
1495	sub cf::object::player::leave_link {	2646	sub cf::object::player::leave_link {
1496	my ($self, $map, $x, $y) = @_;	2647	my ($self, $map, $x, $y) = @_;
		2648
		2649	return unless $self->contr->active;
1497		2650
1498	my $link_pos = delete $self->{_link_pos};	2651	my $link_pos = delete $self->{_link_pos};
1499		2652
1500	unless ($map) {	2653	unless ($map) {
1501	# restore original map position	2654	# restore original map position
1502	($map, $x, $y) = @{ $link_pos || [] };	2655	($map, $x, $y) = @{ $link_pos || [] };
1503	$map = cf::map::find_map $map;	2656	$map = cf::map::find $map;
1504		2657
1505	unless ($map) {	2658	unless ($map) {
1506	($map, $x, $y) = @$EMERGENCY_POSITION;	2659	($map, $x, $y) = @$EMERGENCY_POSITION;
1507	$map = cf::map::find_map $map	2660	$map = cf::map::find $map
1508	or die "FATAL: cannot load emergency map\n";	2661	or die "FATAL: cannot load emergency map\n";
1509	}	2662	}
1510	}	2663	}
1511		2664
1512	($x, $y) = (-1, -1)	2665	($x, $y) = (-1, -1)
1513	unless (defined $x) && (defined $y);	2666	unless (defined $x) && (defined $y);
1514		2667
1515	# use -1 or undef as default coordinates, not 0, 0	2668	# use -1 or undef as default coordinates, not 0, 0
1516	($x, $y) = ($map->enter_x, $map->enter_y)	2669	($x, $y) = ($map->enter_x, $map->enter_y)
1517	if $x <=0 && $y <= 0;	2670	if $x <= 0 && $y <= 0;
1518		2671
1519	$map->load;	2672	$map->load;
		2673	$map->load_neighbours;
1520		2674
		2675	return unless $self->contr->active;
		2676
		2677	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2678	if ($self->enter_map ($map, $x, $y)) {
		2679	# entering was successful
		2680	delete $self->{_link_recursion};
		2681	# only activate afterwards, to support waiting in hooks
1521	$self->activate_recursive;	2682	$self->activate_recursive;
1522	$self->enter_map ($map, $x, $y);
1523	}
1524
1525	cf::player->attach (
1526	on_logout => sub {
1527	my ($pl) = @_;
1528
1529	# abort map switching before logout
1530	if ($pl->ob->{_link_pos}) {
1531	cf::sync_job {
1532	$pl->ob->leave_link
1533	};
1534	}
1535	},	2683	}
1536	on_login => sub {
1537	my ($pl) = @_;
1538		2684
1539	# try to abort aborted map switching on player login :)	2685	}
1540	# should happen only on crashes
1541	if ($pl->ob->{_link_pos}) {
1542	$pl->ob->enter_link;
1543	Coro::async {
1544	# we need this sleep as the login has a concurrent enter_exit running
1545	# and this sleep increases chances of the player not ending up in scorn
1546	Coro::Timer::sleep 1;
1547	$pl->ob->leave_link;
1548	};
1549	}
1550	},
1551	);
1552		2686
1553	=item $player_object->goto_map ($path, $x, $y)	2687	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1554		2688
1555	=cut	2689	Moves the player to the given map-path and coordinates by first freezing
		2690	her, loading and preparing them map, calling the provided $check callback
		2691	that has to return the map if sucecssful, and then unfreezes the player on
		2692	the new (success) or old (failed) map position. In either case, $done will
		2693	be called at the end of this process.
1556		2694
		2695	Note that $check will be called with a potentially non-loaded map, so if
		2696	it needs a loaded map it has to call C<< ->load >>.
		2697
		2698	=cut
		2699
		2700	our $GOTOGEN;
		2701
1557	sub cf::object::player::goto_map {	2702	sub cf::object::player::goto {
1558	my ($self, $path, $x, $y) = @_;	2703	my ($self, $path, $x, $y, $check, $done) = @_;
		2704
		2705	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2706	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2707	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2708	($path, $x, $y) = @$EMERGENCY_POSITION;
		2709	}
		2710
		2711	# do generation counting so two concurrent goto's will be executed in-order
		2712	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1559		2713
1560	$self->enter_link;	2714	$self->enter_link;
1561		2715
1562	(Coro::async {	2716	(async {
1563	$path = new cf::path $path;	2717	$Coro::current->{desc} = "player::goto $path $x $y";
1564		2718
1565	my $map = cf::map::find_map $path->as_string;	2719	# *tag paths override both path and x|y
		2720	if ($path =~ /^\*(.*)$/) {
		2721	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2722	my $ob = $obs[rand @obs];
		2723
		2724	# see if we actually can go there
		2725	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2726	$ob = $obs[rand @obs];
		2727	} else {
		2728	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2729	}
		2730	# else put us there anyways for now #d#
		2731
		2732	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2733	} else {
		2734	($path, $x, $y) = (undef, undef, undef);
		2735	}
		2736	}
		2737
		2738	my $map = eval {
		2739	my $map = defined $path ? cf::map::find $path : undef;
		2740
		2741	if ($map) {
1566	$map = $map->customise_for ($self) if $map;	2742	$map = $map->customise_for ($self);
1567		2743	$map = $check->($map, $x, $y, $self) if $check && $map;
1568	# warn "entering ", $map->path, " at ($x, $y)\n"	2744	} else {
1569	# if $map;
1570
1571	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2745	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2746	}
1572		2747
		2748	$map
		2749	};
		2750
		2751	if ($@) {
		2752	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2753	LOG llevError | logBacktrace, Carp::longmess $@;
		2754	}
		2755
		2756	if ($gen == $self->{_goto_generation}) {
		2757	delete $self->{_goto_generation};
1573	$self->leave_link ($map, $x, $y);	2758	$self->leave_link ($map, $x, $y);
		2759	}
		2760
		2761	$done->($self) if $done;
1574	})->prio (1);	2762	})->prio (1);
1575	}	2763	}
1576		2764
1577	=item $player_object->enter_exit ($exit_object)	2765	=item $player_object->enter_exit ($exit_object)
1578		2766
…		…
1580		2768
1581	sub parse_random_map_params {	2769	sub parse_random_map_params {
1582	my ($spec) = @_;	2770	my ($spec) = @_;
1583		2771
1584	my $rmp = { # defaults	2772	my $rmp = { # defaults
1585	xsize => 10,	2773	xsize => (cf::rndm 15, 40),
1586	ysize => 10,	2774	ysize => (cf::rndm 15, 40),
		2775	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2776	#layout => string,
1587	};	2777	};
1588		2778
1589	for (split /\n/, $spec) {	2779	for (split /\n/, $spec) {
1590	my ($k, $v) = split /\s+/, $_, 2;	2780	my ($k, $v) = split /\s+/, $_, 2;
1591		2781
…		…
1603	# that depends on the exit object	2793	# that depends on the exit object
1604		2794
1605	my $rmp = parse_random_map_params $exit->msg;	2795	my $rmp = parse_random_map_params $exit->msg;
1606		2796
1607	if ($exit->map) {	2797	if ($exit->map) {
1608	$rmp->{region} = $exit->map->region_name;	2798	$rmp->{region} = $exit->region->name;
1609	$rmp->{origin_map} = $exit->map->path;	2799	$rmp->{origin_map} = $exit->map->path;
1610	$rmp->{origin_x} = $exit->x;	2800	$rmp->{origin_x} = $exit->x;
1611	$rmp->{origin_y} = $exit->y;	2801	$rmp->{origin_y} = $exit->y;
		2802
		2803	$exit->map->touch;
1612	}	2804	}
1613		2805
1614	$rmp->{random_seed} ||= $exit->random_seed;	2806	$rmp->{random_seed} ||= $exit->random_seed;
1615		2807
1616	my $data = cf::to_json $rmp;	2808	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1617	my $md5 = Digest::MD5::md5_hex $data;	2809	my $md5 = Digest::MD5::md5_hex $data;
		2810	my $meta = "$RANDOMDIR/$md5.meta";
1618		2811
1619	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2812	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1620	aio_write $fh, 0, (length $data), $data, 0;	2813	aio_write $fh, 0, (length $data), $data, 0;
		2814	undef $fh;
		2815	aio_rename "$meta~", $meta;
1621		2816
		2817	my $slaying = "?random/$md5";
		2818
		2819	if ($exit->valid) {
1622	$exit->slaying ("?random/$md5");	2820	$exit->slaying ("?random/$md5");
1623	$exit->msg (undef);	2821	$exit->msg (undef);
		2822	}
1624	}	2823	}
1625	}	2824	}
1626		2825
1627	sub cf::object::player::enter_exit {	2826	sub cf::object::player::enter_exit {
1628	my ($self, $exit) = @_;	2827	my ($self, $exit) = @_;
1629		2828
1630	return unless $self->type == cf::PLAYER;	2829	return unless $self->type == cf::PLAYER;
1631		2830
1632	$self->enter_link;	2831	$self->enter_link;
1633		2832
1634	(Coro::async {	2833	(async {
		2834	$Coro::current->{desc} = "enter_exit";
		2835
1635	unless (eval {	2836	unless (eval {
		2837	$self->deactivate_recursive; # just to be sure
1636		2838
		2839	# random map handling
		2840	{
		2841	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2842
1637	prepare_random_map $exit	2843	prepare_random_map $exit
1638	if $exit->slaying eq "/!";	2844	if $exit->slaying eq "/!";
		2845	}
1639		2846
1640	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2847	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1641	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2848	my $x = $exit->stats->hp;
		2849	my $y = $exit->stats->sp;
1642		2850
		2851	$self->goto ($map, $x, $y);
		2852
		2853	# if exit is damned, update players death & WoR home-position
		2854	$self->contr->savebed ($map, $x, $y)
		2855	if $exit->flag (cf::FLAG_DAMNED);
		2856
1643	1;	2857	1
1644	}) {	2858	}) {
1645	$self->message ("Something went wrong deep within the crossfire server. "	2859	$self->message ("Something went wrong deep within the deliantra server. "
1646	. "I'll try to bring you back to the map you were before. "	2860	. "I'll try to bring you back to the map you were before. "
1647	. "Please report this to the dungeon master",	2861	. "Please report this to the dungeon master!",
1648	cf::NDI_UNIQUE | cf::NDI_RED);	2862	cf::NDI_UNIQUE | cf::NDI_RED);
1649		2863
1650	warn "ERROR in enter_exit: $@";	2864	error "ERROR in enter_exit: $@";
1651	$self->leave_link;	2865	$self->leave_link;
1652	}	2866	}
1653	})->prio (1);	2867	})->prio (1);
1654	}	2868	}
1655		2869
…		…
1666		2880
1667	sub cf::client::send_drawinfo {	2881	sub cf::client::send_drawinfo {
1668	my ($self, $text, $flags) = @_;	2882	my ($self, $text, $flags) = @_;
1669		2883
1670	utf8::encode $text;	2884	utf8::encode $text;
1671	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2885	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1672	}	2886	}
1673		2887
		2888	=item $client->send_big_packet ($pkt)
		2889
		2890	Like C<send_packet>, but tries to compress large packets, and fragments
		2891	them as required.
		2892
		2893	=cut
		2894
		2895	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2896
		2897	sub cf::client::send_big_packet {
		2898	my ($self, $pkt) = @_;
		2899
		2900	# try lzf for large packets
		2901	$pkt = "lzf " . Compress::LZF::compress $pkt
		2902	if 1024 <= length $pkt and $self->{can_lzf};
		2903
		2904	# split very large packets
		2905	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2906	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2907	$pkt = "frag";
		2908	}
		2909
		2910	$self->send_packet ($pkt);
		2911	}
		2912
		2913	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2914
		2915	Send a drawinfo or msg packet to the client, formatting the msg for the
		2916	client if neccessary. C<$type> should be a string identifying the type of
		2917	the message, with C<log> being the default. If C<$color> is negative, suppress
		2918	the message unless the client supports the msg packet.
		2919
		2920	=cut
		2921
		2922	# non-persistent channels (usually the info channel)
		2923	our %CHANNEL = (
		2924	"c/motd" => {
		2925	id => "infobox",
		2926	title => "MOTD",
		2927	reply => undef,
		2928	tooltip => "The message of the day",
		2929	},
		2930	"c/identify" => {
		2931	id => "infobox",
		2932	title => "Identify",
		2933	reply => undef,
		2934	tooltip => "Items recently identified",
		2935	},
		2936	"c/examine" => {
		2937	id => "infobox",
		2938	title => "Examine",
		2939	reply => undef,
		2940	tooltip => "Signs and other items you examined",
		2941	},
		2942	"c/shopinfo" => {
		2943	id => "infobox",
		2944	title => "Shop Info",
		2945	reply => undef,
		2946	tooltip => "What your bargaining skill tells you about the shop",
		2947	},
		2948	"c/book" => {
		2949	id => "infobox",
		2950	title => "Book",
		2951	reply => undef,
		2952	tooltip => "The contents of a note or book",
		2953	},
		2954	"c/lookat" => {
		2955	id => "infobox",
		2956	title => "Look",
		2957	reply => undef,
		2958	tooltip => "What you saw there",
		2959	},
		2960	"c/who" => {
		2961	id => "infobox",
		2962	title => "Players",
		2963	reply => undef,
		2964	tooltip => "Shows players who are currently online",
		2965	},
		2966	"c/body" => {
		2967	id => "infobox",
		2968	title => "Body Parts",
		2969	reply => undef,
		2970	tooltip => "Shows which body parts you posess and are available",
		2971	},
		2972	"c/statistics" => {
		2973	id => "infobox",
		2974	title => "Statistics",
		2975	reply => undef,
		2976	tooltip => "Shows your primary statistics",
		2977	},
		2978	"c/skills" => {
		2979	id => "infobox",
		2980	title => "Skills",
		2981	reply => undef,
		2982	tooltip => "Shows your experience per skill and item power",
		2983	},
		2984	"c/shopitems" => {
		2985	id => "infobox",
		2986	title => "Shop Items",
		2987	reply => undef,
		2988	tooltip => "Shows the items currently for sale in this shop",
		2989	},
		2990	"c/resistances" => {
		2991	id => "infobox",
		2992	title => "Resistances",
		2993	reply => undef,
		2994	tooltip => "Shows your resistances",
		2995	},
		2996	"c/pets" => {
		2997	id => "infobox",
		2998	title => "Pets",
		2999	reply => undef,
		3000	tooltip => "Shows information abotu your pets/a specific pet",
		3001	},
		3002	"c/perceiveself" => {
		3003	id => "infobox",
		3004	title => "Perceive Self",
		3005	reply => undef,
		3006	tooltip => "You gained detailed knowledge about yourself",
		3007	},
		3008	"c/uptime" => {
		3009	id => "infobox",
		3010	title => "Uptime",
		3011	reply => undef,
		3012	tooltip => "How long the server has been running since last restart",
		3013	},
		3014	"c/mapinfo" => {
		3015	id => "infobox",
		3016	title => "Map Info",
		3017	reply => undef,
		3018	tooltip => "Information related to the maps",
		3019	},
		3020	"c/party" => {
		3021	id => "party",
		3022	title => "Party",
		3023	reply => "gsay ",
		3024	tooltip => "Messages and chat related to your party",
		3025	},
		3026	"c/death" => {
		3027	id => "death",
		3028	title => "Death",
		3029	reply => undef,
		3030	tooltip => "Reason for and more info about your most recent death",
		3031	},
		3032	"c/say" => $SAY_CHANNEL,
		3033	"c/chat" => $CHAT_CHANNEL,
		3034	);
		3035
		3036	sub cf::client::send_msg {
		3037	my ($self, $channel, $msg, $color, @extra) = @_;
		3038
		3039	$msg = $self->pl->expand_cfpod ($msg)
		3040	unless $color & cf::NDI_VERBATIM;
		3041
		3042	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3043
		3044	# check predefined channels, for the benefit of C
		3045	if ($CHANNEL{$channel}) {
		3046	$channel = $CHANNEL{$channel};
		3047
		3048	$self->ext_msg (channel_info => $channel);
		3049	$channel = $channel->{id};
		3050
		3051	} elsif (ref $channel) {
		3052	# send meta info to client, if not yet sent
		3053	unless (exists $self->{channel}{$channel->{id}}) {
		3054	$self->{channel}{$channel->{id}} = $channel;
		3055	$self->ext_msg (channel_info => $channel);
		3056	}
		3057
		3058	$channel = $channel->{id};
		3059	}
		3060
		3061	return unless @extra || length $msg;
		3062
		3063	# default colour, mask it out
		3064	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3065	if $color & cf::NDI_DEF;
		3066
		3067	my $pkt = "msg "
		3068	. $self->{json_coder}->encode (
		3069	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3070	);
		3071
		3072	$self->send_big_packet ($pkt);
		3073	}
		3074
		3075	=item $client->ext_msg ($type, @msg)
		3076
		3077	Sends an ext event to the client.
		3078
		3079	=cut
		3080
		3081	sub cf::client::ext_msg($$@) {
		3082	my ($self, $type, @msg) = @_;
		3083
		3084	if ($self->extcmd == 2) {
		3085	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3086	} elsif ($self->extcmd == 1) { # TODO: remove
		3087	push @msg, msgtype => "event_$type";
		3088	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3089	}
		3090	}
		3091
		3092	=item $client->ext_reply ($msgid, @msg)
		3093
		3094	Sends an ext reply to the client.
		3095
		3096	=cut
		3097
		3098	sub cf::client::ext_reply($$@) {
		3099	my ($self, $id, @msg) = @_;
		3100
		3101	if ($self->extcmd == 2) {
		3102	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3103	} elsif ($self->extcmd == 1) {
		3104	#TODO: version 1, remove
		3105	unshift @msg, msgtype => "reply", msgid => $id;
		3106	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3107	}
		3108	}
1674		3109
1675	=item $success = $client->query ($flags, "text", \&cb)	3110	=item $success = $client->query ($flags, "text", \&cb)
1676		3111
1677	Queues a query to the client, calling the given callback with	3112	Queues a query to the client, calling the given callback with
1678	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3113	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1679	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3114	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1680		3115
1681	Queries can fail, so check the return code. Or don't, as queries will become	3116	Queries can fail, so check the return code. Or don't, as queries will
1682	reliable at some point in the future.	3117	become reliable at some point in the future.
1683		3118
1684	=cut	3119	=cut
1685		3120
1686	sub cf::client::query {	3121	sub cf::client::query {
1687	my ($self, $flags, $text, $cb) = @_;	3122	my ($self, $flags, $text, $cb) = @_;
…		…
1695	utf8::encode $text;	3130	utf8::encode $text;
1696	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3131	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1697		3132
1698	$self->send_packet ($self->{query_queue}[0][0])	3133	$self->send_packet ($self->{query_queue}[0][0])
1699	if @{ $self->{query_queue} } == 1;	3134	if @{ $self->{query_queue} } == 1;
		3135
		3136	1
1700	}	3137	}
1701		3138
1702	cf::client->attach (	3139	cf::client->attach (
		3140	on_connect => sub {
		3141	my ($ns) = @_;
		3142
		3143	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3144	},
1703	on_reply => sub {	3145	on_reply => sub {
1704	my ($ns, $msg) = @_;	3146	my ($ns, $msg) = @_;
1705		3147
1706	# this weird shuffling is so that direct followup queries	3148	# this weird shuffling is so that direct followup queries
1707	# get handled first	3149	# get handled first
1708	my $queue = delete $ns->{query_queue};	3150	my $queue = delete $ns->{query_queue}
		3151	or return; # be conservative, not sure how that can happen, but we saw a crash here
1709		3152
1710	(shift @$queue)->[1]->($msg);	3153	(shift @$queue)->[1]->($msg);
		3154	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1711		3155
1712	push @{ $ns->{query_queue} }, @$queue;	3156	push @{ $ns->{query_queue} }, @$queue;
1713		3157
1714	if (@{ $ns->{query_queue} } == @$queue) {	3158	if (@{ $ns->{query_queue} } == @$queue) {
1715	if (@$queue) {	3159	if (@$queue) {
…		…
1717	} else {	3161	} else {
1718	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3162	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1719	}	3163	}
1720	}	3164	}
1721	},	3165	},
		3166	on_exticmd => sub {
		3167	my ($ns, $buf) = @_;
		3168
		3169	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3170
		3171	if (ref $msg) {
		3172	my ($type, $reply, @payload) =
		3173	"ARRAY" eq ref $msg
		3174	? @$msg
		3175	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3176
		3177	my @reply;
		3178
		3179	if (my $cb = $EXTICMD{$type}) {
		3180	@reply = $cb->($ns, @payload);
		3181	}
		3182
		3183	$ns->ext_reply ($reply, @reply)
		3184	if $reply;
		3185
		3186	} else {
		3187	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3188	}
		3189
		3190	cf::override;
		3191	},
1722	);	3192	);
1723		3193
1724	=item $client->coro (\&cb)	3194	=item $client->async (\&cb)
1725		3195
1726	Create a new coroutine, running the specified callback. The coroutine will	3196	Create a new coroutine, running the specified callback. The coroutine will
1727	be automatically cancelled when the client gets destroyed (e.g. on logout,	3197	be automatically cancelled when the client gets destroyed (e.g. on logout,
1728	or loss of connection).	3198	or loss of connection).
1729		3199
1730	=cut	3200	=cut
1731		3201
1732	sub cf::client::coro {	3202	sub cf::client::async {
1733	my ($self, $cb) = @_;	3203	my ($self, $cb) = @_;
1734		3204
1735	my $coro; $coro = async {	3205	my $coro = &Coro::async ($cb);
1736	eval {
1737	$cb->();
1738	};
1739	warn $@ if $@;
1740	};
1741		3206
1742	$coro->on_destroy (sub {	3207	$coro->on_destroy (sub {
1743	delete $self->{_coro}{$coro+0};	3208	delete $self->{_coro}{$coro+0};
1744	});	3209	});
1745		3210
…		…
1747		3212
1748	$coro	3213	$coro
1749	}	3214	}
1750		3215
1751	cf::client->attach (	3216	cf::client->attach (
1752	on_destroy => sub {	3217	on_client_destroy => sub {
1753	my ($ns) = @_;	3218	my ($ns) = @_;
1754		3219
1755	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3220	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1756	},	3221	},
1757	);	3222	);
…		…
1772	our $safe = new Safe "safe";	3237	our $safe = new Safe "safe";
1773	our $safe_hole = new Safe::Hole;	3238	our $safe_hole = new Safe::Hole;
1774		3239
1775	$SIG{FPE} = 'IGNORE';	3240	$SIG{FPE} = 'IGNORE';
1776		3241
1777	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3242	$safe->permit_only (Opcode::opset qw(
		3243	:base_core :base_mem :base_orig :base_math :base_loop
		3244	grepstart grepwhile mapstart mapwhile
		3245	sort time
		3246	));
1778		3247
1779	# here we export the classes and methods available to script code	3248	# here we export the classes and methods available to script code
1780		3249
1781	=pod	3250	=pod
1782		3251
1783	The following fucntions and emthods are available within a safe environment:	3252	The following functions and methods are available within a safe environment:
1784		3253
1785	cf::object contr pay_amount pay_player map	3254	cf::object
		3255	contr pay_amount pay_player map x y force_find force_add destroy
		3256	insert remove name archname title slaying race decrease split
		3257	value
		3258
1786	cf::object::player player	3259	cf::object::player
1787	cf::player peaceful	3260	player
1788	cf::map trigger	3261
		3262	cf::player
		3263	peaceful
		3264
		3265	cf::map
		3266	trigger
1789		3267
1790	=cut	3268	=cut
1791		3269
1792	for (	3270	for (
1793	["cf::object" => qw(contr pay_amount pay_player map)],	3271	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3272	insert remove inv nrof name archname title slaying race
		3273	decrease split destroy change_exp value msg lore send_msg)],
1794	["cf::object::player" => qw(player)],	3274	["cf::object::player" => qw(player)],
1795	["cf::player" => qw(peaceful)],	3275	["cf::player" => qw(peaceful send_msg)],
1796	["cf::map" => qw(trigger)],	3276	["cf::map" => qw(trigger)],
1797	) {	3277	) {
1798	no strict 'refs';	3278	no strict 'refs';
1799	my ($pkg, @funs) = @$_;	3279	my ($pkg, @funs) = @$_;
1800	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3280	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1818		3298
1819	my $qcode = $code;	3299	my $qcode = $code;
1820	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3300	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1821	$qcode =~ s/\n/\\n/g;	3301	$qcode =~ s/\n/\\n/g;
1822		3302
		3303	%vars = (_dummy => 0) unless %vars;
		3304
		3305	my @res;
1823	local $_;	3306	local $_;
1824	local @safe::cf::_safe_eval_args = values %vars;
1825		3307
1826	my $eval =	3308	my $eval =
1827	"do {\n"	3309	"do {\n"
1828	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3310	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1829	. "#line 0 \"{$qcode}\"\n"	3311	. "#line 0 \"{$qcode}\"\n"
1830	. $code	3312	. $code
1831	. "\n}"	3313	. "\n}"
1832	;	3314	;
1833		3315
		3316	if ($CFG{safe_eval}) {
1834	sub_generation_inc;	3317	sub_generation_inc;
		3318	local @safe::cf::_safe_eval_args = values %vars;
1835	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3319	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1836	sub_generation_inc;	3320	sub_generation_inc;
		3321	} else {
		3322	local @cf::_safe_eval_args = values %vars;
		3323	@res = wantarray ? eval eval : scalar eval $eval;
		3324	}
1837		3325
1838	if ($@) {	3326	if ($@) {
1839	warn "$@";	3327	warn "$@",
1840	warn "while executing safe code '$code'\n";	3328	"while executing safe code '$code'\n",
1841	warn "with arguments " . (join " ", %vars) . "\n";	3329	"with arguments " . (join " ", %vars) . "\n";
1842	}	3330	}
1843		3331
1844	wantarray ? @res : $res[0]	3332	wantarray ? @res : $res[0]
1845	}	3333	}
1846		3334
…		…
1860	=cut	3348	=cut
1861		3349
1862	sub register_script_function {	3350	sub register_script_function {
1863	my ($fun, $cb) = @_;	3351	my ($fun, $cb) = @_;
1864		3352
1865	no strict 'refs';	3353	$fun = "safe::$fun" if $CFG{safe_eval};
1866	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3354	*$fun = $safe_hole->wrap ($cb);
1867	}	3355	}
1868		3356
1869	=back	3357	=back
1870		3358
1871	=cut	3359	=cut
1872		3360
1873	#############################################################################	3361	#############################################################################
		3362	# the server's init and main functions
1874		3363
1875	=head2 EXTENSION DATABASE SUPPORT	3364	sub load_facedata($) {
		3365	my ($path) = @_;
1876		3366
1877	Crossfire maintains a very simple database for extension use. It can	3367	# HACK to clear player env face cache, we need some signal framework
1878	currently store anything that can be serialised using Storable, which	3368	# for this (global event?)
1879	excludes objects.	3369	%ext::player_env::MUSIC_FACE_CACHE = ();
1880		3370
1881	The parameter C<$family> should best start with the name of the extension	3371	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1882	using it, it should be unique.
1883		3372
1884	=over 4	3373	trace "loading facedata from $path\n";
1885		3374
1886	=item $hashref = cf::db_get $family	3375	my $facedata;
		3376	0 < aio_load $path, $facedata
		3377	or die "$path: $!";
1887		3378
1888	Return a hashref for use by the extension C<$family>, which can be	3379	$facedata = Coro::Storable::thaw $facedata;
1889	modified. After modifications, you have to call C<cf::db_dirty> or
1890	C<cf::db_sync>.
1891		3380
1892	=item $value = cf::db_get $family => $key	3381	$facedata->{version} == 2
		3382	or cf::cleanup "$path: version mismatch, cannot proceed.";
1893		3383
1894	Returns a single value from the database	3384	# patch in the exptable
1895		3385	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1896	=item cf::db_put $family => $hashref	3386	$facedata->{resource}{"res/exp_table"} = {
1897		3387	type => FT_RSRC,
1898	Stores the given family hashref into the database. Updates are delayed, if	3388	data => $exp_table,
1899	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3389	hash => (Digest::MD5::md5 $exp_table),
1900
1901	=item cf::db_put $family => $key => $value
1902
1903	Stores the given C<$value> in the family hash. Updates are delayed, if you
1904	want the data to be synced to disk immediately, use C<cf::db_sync>.
1905
1906	=item cf::db_dirty
1907
1908	Marks the database as dirty, to be updated at a later time.
1909
1910	=item cf::db_sync
1911
1912	Immediately write the database to disk I<if it is dirty>.
1913
1914	=cut
1915
1916	our $DB;
1917
1918	{
1919	my $path = cf::localdir . "/database.pst";
1920
1921	sub db_load() {
1922	$DB = stat $path ? Storable::retrieve $path : { };
1923	}
1924
1925	my $pid;
1926
1927	sub db_save() {
1928	waitpid $pid, 0 if $pid;
1929	if (0 == ($pid = fork)) {
1930	$DB->{_meta}{version} = 1;
1931	Storable::nstore $DB, "$path~";
1932	rename "$path~", $path;
1933	cf::_exit 0 if defined $pid;
1934	}
1935	}
1936
1937	my $dirty;
1938
1939	sub db_sync() {
1940	db_save if $dirty;
1941	undef $dirty;
1942	}
1943
1944	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1945	db_sync;
1946	});	3390	};
		3391	cf::cede_to_tick;
1947		3392
1948	sub db_dirty() {
1949	$dirty = 1;
1950	$idle->start;
1951	}	3393	{
		3394	my $faces = $facedata->{faceinfo};
1952		3395
1953	sub db_get($;$) {	3396	while (my ($face, $info) = each %$faces) {
1954	@_ >= 2	3397	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1955	? $DB->{$_[0]}{$_[1]}
1956	: ($DB->{$_[0]} ||= { })
1957	}
1958		3398
1959	sub db_put($$;$) {	3399	cf::face::set_visibility $idx, $info->{visibility};
1960	if (@_ >= 3) {	3400	cf::face::set_magicmap $idx, $info->{magicmap};
1961	$DB->{$_[0]}{$_[1]} = $_[2];	3401	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1962	} else {	3402	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1963	$DB->{$_[0]} = $_[1];
1964	}
1965	db_dirty;
1966	}
1967		3403
1968	cf::global->attach (	3404	cf::cede_to_tick;
1969	prio => 10000,
1970	on_cleanup => sub {
1971	db_sync;
1972	},	3405	}
1973	);
1974	}
1975		3406
1976	#############################################################################	3407	while (my ($face, $info) = each %$faces) {
1977	# the server's main()	3408	next unless $info->{smooth};
1978		3409
1979	sub cfg_load {	3410	my $idx = cf::face::find $face
		3411	or next;
		3412
		3413	if (my $smooth = cf::face::find $info->{smooth}) {
		3414	cf::face::set_smooth $idx, $smooth;
		3415	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3416	} else {
		3417	error "smooth face '$info->{smooth}' not found for face '$face'";
		3418	}
		3419
		3420	cf::cede_to_tick;
		3421	}
		3422	}
		3423
		3424	{
		3425	my $anims = $facedata->{animinfo};
		3426
		3427	while (my ($anim, $info) = each %$anims) {
		3428	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3429	cf::cede_to_tick;
		3430	}
		3431
		3432	cf::anim::invalidate_all; # d'oh
		3433	}
		3434
		3435	{
		3436	my $res = $facedata->{resource};
		3437
		3438	while (my ($name, $info) = each %$res) {
		3439	if (defined $info->{type}) {
		3440	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3441
		3442	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3443	cf::face::set_type $idx, $info->{type};
		3444	} else {
		3445	$RESOURCE{$name} = $info; # unused
		3446	}
		3447
		3448	cf::cede_to_tick;
		3449	}
		3450	}
		3451
		3452	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3453
		3454	1
		3455	}
		3456
		3457	register_exticmd fx_want => sub {
		3458	my ($ns, $want) = @_;
		3459
		3460	while (my ($k, $v) = each %$want) {
		3461	$ns->fx_want ($k, $v);
		3462	}
		3463	};
		3464
		3465	sub load_resource_file($) {
		3466	my $guard = lock_acquire "load_resource_file";
		3467
		3468	my $status = load_resource_file_ $_[0];
		3469	get_slot 0.1, 100;
		3470	cf::arch::commit_load;
		3471
		3472	$status
		3473	}
		3474
		3475	sub reload_regions {
		3476	# HACK to clear player env face cache, we need some signal framework
		3477	# for this (global event?)
		3478	%ext::player_env::MUSIC_FACE_CACHE = ();
		3479
		3480	load_resource_file "$MAPDIR/regions"
		3481	or die "unable to load regions file\n";
		3482
		3483	for (cf::region::list) {
		3484	$_->{match} = qr/$_->{match}/
		3485	if exists $_->{match};
		3486	}
		3487	}
		3488
		3489	sub reload_facedata {
		3490	load_facedata "$DATADIR/facedata"
		3491	or die "unable to load facedata\n";
		3492	}
		3493
		3494	sub reload_archetypes {
		3495	load_resource_file "$DATADIR/archetypes"
		3496	or die "unable to load archetypes\n";
		3497	}
		3498
		3499	sub reload_treasures {
		3500	load_resource_file "$DATADIR/treasures"
		3501	or die "unable to load treasurelists\n";
		3502	}
		3503
		3504	sub reload_sound {
		3505	trace "loading sound config from $DATADIR/sound\n";
		3506
		3507	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3508	or die "$DATADIR/sound $!";
		3509
		3510	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3511
		3512	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3513	my $sound = $soundconf->{compat}[$_]
		3514	or next;
		3515
		3516	my $face = cf::face::find "sound/$sound->[1]";
		3517	cf::sound::set $sound->[0] => $face;
		3518	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3519	}
		3520
		3521	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3522	my $face = cf::face::find "sound/$v";
		3523	cf::sound::set $k => $face;
		3524	}
		3525	}
		3526
		3527	sub reload_resources {
		3528	trace "reloading resource files...\n";
		3529
		3530	reload_facedata;
		3531	reload_sound;
		3532	reload_archetypes;
		3533	reload_regions;
		3534	reload_treasures;
		3535
		3536	trace "finished reloading resource files\n";
		3537	}
		3538
		3539	sub reload_config {
		3540	trace "reloading config file...\n";
		3541
1980	open my $fh, "<:utf8", cf::confdir . "/config"	3542	open my $fh, "<:utf8", "$CONFDIR/config"
1981	or return;	3543	or return;
1982		3544
1983	local $/;	3545	local $/;
1984	*CFG = YAML::Syck::Load <$fh>;	3546	*CFG = YAML::XS::Load scalar <$fh>;
		3547
		3548	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3549
		3550	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3551	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3552
		3553	if (exists $CFG{mlockall}) {
		3554	eval {
		3555	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3556	and die "WARNING: m(un)lockall failed: $!\n";
		3557	};
		3558	warn $@ if $@;
		3559	}
		3560
		3561	trace "finished reloading resource files\n";
		3562	}
		3563
		3564	sub pidfile() {
		3565	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3566	or die "$PIDFILE: $!";
		3567	flock $fh, &Fcntl::LOCK_EX
		3568	or die "$PIDFILE: flock: $!";
		3569	$fh
		3570	}
		3571
		3572	# make sure only one server instance is running at any one time
		3573	sub atomic {
		3574	my $fh = pidfile;
		3575
		3576	my $pid = <$fh>;
		3577	kill 9, $pid if $pid > 0;
		3578
		3579	seek $fh, 0, 0;
		3580	print $fh $$;
		3581	}
		3582
		3583	sub main_loop {
		3584	trace "EV::loop starting\n";
		3585	if (1) {
		3586	EV::loop;
		3587	}
		3588	trace "EV::loop returned\n";
		3589	goto &main_loop unless $REALLY_UNLOOP;
1985	}	3590	}
1986		3591
1987	sub main {	3592	sub main {
		3593	cf::init_globals; # initialise logging
		3594
		3595	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3596	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3597	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3598	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3599
		3600	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3601
1988	# we must not ever block the main coroutine	3602	# we must not ever block the main coroutine
1989	local $Coro::idle = sub {	3603	local $Coro::idle = sub {
1990	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3604	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1991	(Coro::unblock_sub {	3605	(async {
1992	Event::one_event;	3606	$Coro::current->{desc} = "IDLE BUG HANDLER";
1993	})->();	3607	EV::loop EV::LOOP_ONESHOT;
		3608	})->prio (Coro::PRIO_MAX);
1994	};	3609	};
1995		3610
1996	cfg_load;	3611	evthread_start IO::AIO::poll_fileno;
1997	db_load;	3612
		3613	cf::sync_job {
		3614	cf::init_experience;
		3615	cf::init_anim;
		3616	cf::init_attackmess;
		3617	cf::init_dynamic;
		3618
		3619	cf::load_settings;
		3620	cf::load_materials;
		3621
		3622	reload_resources;
		3623	reload_config;
		3624	db_init;
		3625
		3626	cf::init_uuid;
		3627	cf::init_signals;
		3628	cf::init_skills;
		3629
		3630	cf::init_beforeplay;
		3631
		3632	atomic;
		3633
1998	load_extensions;	3634	load_extensions;
1999	Event::loop;	3635
		3636	utime time, time, $RUNTIMEFILE;
		3637
		3638	# no (long-running) fork's whatsoever before this point(!)
		3639	use POSIX ();
		3640	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3641
		3642	(pop @POST_INIT)->(0) while @POST_INIT;
		3643	};
		3644
		3645	cf::object::thawer::errors_are_fatal 0;
		3646	info "parse errors in files are no longer fatal from this point on.\n";
		3647
		3648	main_loop;
2000	}	3649	}
2001		3650
2002	#############################################################################	3651	#############################################################################
2003	# initialisation	3652	# initialisation and cleanup
2004		3653
		3654	# install some emergency cleanup handlers
		3655	BEGIN {
		3656	our %SIGWATCHER = ();
		3657	for my $signal (qw(INT HUP TERM)) {
		3658	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3659	cf::cleanup "SIG$signal";
		3660	};
		3661	}
		3662	}
		3663
		3664	sub write_runtime_sync {
		3665	my $t0 = AE::time;
		3666
		3667	# first touch the runtime file to show we are still running:
		3668	# the fsync below can take a very very long time.
		3669
		3670	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3671
		3672	my $guard = cf::lock_acquire "write_runtime";
		3673
		3674	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3675	or return;
		3676
		3677	my $value = $cf::RUNTIME + 90 + 10;
		3678	# 10 is the runtime save interval, for a monotonic clock
		3679	# 60 allows for the watchdog to kill the server.
		3680
		3681	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3682	and return;
		3683
		3684	# always fsync - this file is important
		3685	aio_fsync $fh
		3686	and return;
		3687
		3688	# touch it again to show we are up-to-date
		3689	aio_utime $fh, undef, undef;
		3690
		3691	close $fh
		3692	or return;
		3693
		3694	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3695	and return;
		3696
		3697	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3698
		3699	1
		3700	}
		3701
		3702	our $uuid_lock;
		3703	our $uuid_skip;
		3704
		3705	sub write_uuid_sync($) {
		3706	$uuid_skip ||= $_[0];
		3707
		3708	return if $uuid_lock;
		3709	local $uuid_lock = 1;
		3710
		3711	my $uuid = "$LOCALDIR/uuid";
		3712
		3713	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3714	or return;
		3715
		3716	my $value = uuid_seq uuid_cur;
		3717
		3718	unless ($value) {
		3719	info "cowardly refusing to write zero uuid value!\n";
		3720	return;
		3721	}
		3722
		3723	my $value = uuid_str $value + $uuid_skip;
		3724	$uuid_skip = 0;
		3725
		3726	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3727	and return;
		3728
		3729	# always fsync - this file is important
		3730	aio_fsync $fh
		3731	and return;
		3732
		3733	close $fh
		3734	or return;
		3735
		3736	aio_rename "$uuid~", $uuid
		3737	and return;
		3738
		3739	trace "uuid file written ($value).\n";
		3740
		3741	1
		3742
		3743	}
		3744
		3745	sub write_uuid($$) {
		3746	my ($skip, $sync) = @_;
		3747
		3748	$sync ? write_uuid_sync $skip
		3749	: async { write_uuid_sync $skip };
		3750	}
		3751
		3752	sub emergency_save() {
		3753	my $freeze_guard = cf::freeze_mainloop;
		3754
		3755	info "emergency_perl_save: enter\n";
		3756
		3757	# this is a trade-off: we want to be very quick here, so
		3758	# save all maps without fsync, and later call a global sync
		3759	# (which in turn might be very very slow)
		3760	local $USE_FSYNC = 0;
		3761
		3762	cf::sync_job {
		3763	cf::write_runtime_sync; # external watchdog should not bark
		3764
		3765	# use a peculiar iteration method to avoid tripping on perl
		3766	# refcount bugs in for. also avoids problems with players
		3767	# and maps saved/destroyed asynchronously.
		3768	info "emergency_perl_save: begin player save\n";
		3769	for my $login (keys %cf::PLAYER) {
		3770	my $pl = $cf::PLAYER{$login} or next;
		3771	$pl->valid or next;
		3772	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3773	$pl->save;
		3774	}
		3775	info "emergency_perl_save: end player save\n";
		3776
		3777	cf::write_runtime_sync; # external watchdog should not bark
		3778
		3779	info "emergency_perl_save: begin map save\n";
		3780	for my $path (keys %cf::MAP) {
		3781	my $map = $cf::MAP{$path} or next;
		3782	$map->valid or next;
		3783	$map->save;
		3784	}
		3785	info "emergency_perl_save: end map save\n";
		3786
		3787	cf::write_runtime_sync; # external watchdog should not bark
		3788
		3789	info "emergency_perl_save: begin database checkpoint\n";
		3790	BDB::db_env_txn_checkpoint $DB_ENV;
		3791	info "emergency_perl_save: end database checkpoint\n";
		3792
		3793	info "emergency_perl_save: begin write uuid\n";
		3794	write_uuid_sync 1;
		3795	info "emergency_perl_save: end write uuid\n";
		3796
		3797	cf::write_runtime_sync; # external watchdog should not bark
		3798
		3799	trace "emergency_perl_save: syncing database to disk";
		3800	BDB::db_env_txn_checkpoint $DB_ENV;
		3801
		3802	info "emergency_perl_save: starting sync()\n";
		3803	IO::AIO::aio_sync sub {
		3804	info "emergency_perl_save: finished sync()\n";
		3805	};
		3806
		3807	cf::write_runtime_sync; # external watchdog should not bark
		3808
		3809	trace "emergency_perl_save: flushing outstanding aio requests";
		3810	while (IO::AIO::nreqs || BDB::nreqs) {
		3811	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3812	}
		3813
		3814	cf::write_runtime_sync; # external watchdog should not bark
		3815	};
		3816
		3817	info "emergency_perl_save: leave\n";
		3818	}
		3819
		3820	sub post_cleanup {
		3821	my ($make_core) = @_;
		3822
		3823	IO::AIO::flush;
		3824
		3825	IO::AIO::flush;
		3826
		3827	error Carp::longmess "post_cleanup backtrace"
		3828	if $make_core;
		3829
		3830	my $fh = pidfile;
		3831	unlink $PIDFILE if <$fh> == $$;
		3832	}
		3833
		3834	# a safer delete_package, copied from Symbol
		3835	sub clear_package($) {
		3836	my $pkg = shift;
		3837
		3838	# expand to full symbol table name if needed
		3839	unless ($pkg =~ /^main::.*::$/) {
		3840	$pkg = "main$pkg" if $pkg =~ /^::/;
		3841	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3842	$pkg .= '::' unless $pkg =~ /::$/;
		3843	}
		3844
		3845	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3846	my $stem_symtab = *{$stem}{HASH};
		3847
		3848	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3849	or return;
		3850
		3851	# clear all symbols
		3852	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3853	for my $name (keys %$leaf_symtab) {
		3854	_gv_clear *{"$pkg$name"};
		3855	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3856	}
		3857	}
		3858
2005	sub reload() {	3859	sub do_reload_perl() {
2006	# can/must only be called in main	3860	# can/must only be called in main
2007	if ($Coro::current != $Coro::main) {	3861	if (in_main) {
2008	warn "can only reload from main coroutine\n";	3862	error "can only reload from main coroutine";
2009	return;	3863	return;
2010	}	3864	}
2011		3865
		3866	return if $RELOAD++;
		3867
		3868	my $t1 = AE::time;
		3869
		3870	while ($RELOAD) {
2012	warn "reloading...";	3871	info "reloading...";
2013		3872
2014	local $FREEZE = 1;	3873	trace "entering sync_job";
		3874
		3875	cf::sync_job {
2015	cf::emergency_save;	3876	cf::emergency_save;
2016		3877
2017	eval {
2018	# if anything goes wrong in here, we should simply crash as we already saved
2019
2020	# cancel all watchers
2021	for (Event::all_watchers) {
2022	$_->cancel if $_->data & WF_AUTOCANCEL;
2023	}
2024
2025	# cancel all extension coros	3878	trace "cancelling all extension coros";
2026	$_->cancel for values %EXT_CORO;	3879	$_->cancel for values %EXT_CORO;
2027	%EXT_CORO = ();	3880	%EXT_CORO = ();
2028		3881
2029	# unload all extensions	3882	trace "removing commands";
2030	for (@exts) {	3883	%COMMAND = ();
2031	warn "unloading <$_>";
2032	unload_extension $_;
2033	}
2034		3884
2035	# unload all modules loaded from $LIBDIR	3885	trace "removing ext/exti commands";
2036	while (my ($k, $v) = each %INC) {	3886	%EXTCMD = ();
2037	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3887	%EXTICMD = ();
2038		3888
2039	warn "removing <$k>";	3889	trace "unloading/nuking all extensions";
2040	delete $INC{$k};	3890	for my $pkg (@EXTS) {
		3891	trace "... unloading $pkg";
2041		3892
2042	$k =~ s/\.pm$//;
2043	$k =~ s/\//::/g;
2044
2045	if (my $cb = $k->can ("unload_module")) {	3893	if (my $cb = $pkg->can ("unload")) {
		3894	eval {
2046	$cb->();	3895	$cb->($pkg);
		3896	1
		3897	} or error "$pkg unloaded, but with errors: $@";
		3898	}
		3899
		3900	trace "... clearing $pkg";
		3901	clear_package $pkg;
2047	}	3902	}
2048		3903
2049	Symbol::delete_package $k;	3904	trace "unloading all perl modules loaded from $LIBDIR";
		3905	while (my ($k, $v) = each %INC) {
		3906	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3907
		3908	trace "... unloading $k";
		3909	delete $INC{$k};
		3910
		3911	$k =~ s/\.pm$//;
		3912	$k =~ s/\//::/g;
		3913
		3914	if (my $cb = $k->can ("unload_module")) {
		3915	$cb->();
		3916	}
		3917
		3918	clear_package $k;
2050	}	3919	}
2051		3920
2052	# sync database to disk
2053	cf::db_sync;
2054	IO::AIO::flush;
2055
2056	# get rid of safe::, as good as possible	3921	trace "getting rid of safe::, as good as possible";
2057	Symbol::delete_package "safe::$_"	3922	clear_package "safe::$_"
2058	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3923	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2059		3924
2060	# remove register_script_function callbacks	3925	trace "unloading cf.pm \"a bit\"";
2061	# TODO
2062
2063	# unload cf.pm "a bit"
2064	delete $INC{"cf.pm"};	3926	delete $INC{"cf.pm"};
		3927	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2065		3928
2066	# don't, removes xs symbols, too,	3929	# don't, removes xs symbols, too,
2067	# and global variables created in xs	3930	# and global variables created in xs
2068	#Symbol::delete_package __PACKAGE__;	3931	#clear_package __PACKAGE__;
2069		3932
2070	# reload cf.pm	3933	info "unload completed, starting to reload now";
		3934
2071	warn "reloading cf.pm";	3935	trace "reloading cf.pm";
2072	require cf;	3936	require cf;
2073	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3937	cf::_connect_to_perl_1;
2074		3938
2075	# load config and database again	3939	trace "loading config and database again";
2076	cf::cfg_load;	3940	cf::reload_config;
2077	cf::db_load;
2078		3941
2079	# load extensions
2080	warn "load extensions";	3942	trace "loading extensions";
2081	cf::load_extensions;	3943	cf::load_extensions;
2082		3944
2083	# reattach attachments to objects	3945	if ($REATTACH_ON_RELOAD) {
2084	warn "reattach";	3946	trace "reattaching attachments to objects/players";
2085	_global_reattach;	3947	_global_reattach; # objects, sockets
		3948	trace "reattaching attachments to maps";
		3949	reattach $_ for values %MAP;
		3950	trace "reattaching attachments to players";
		3951	reattach $_ for values %PLAYER;
		3952	}
		3953
		3954	trace "running post_init jobs";
		3955	(pop @POST_INIT)->(1) while @POST_INIT;
		3956
		3957	trace "leaving sync_job";
		3958
		3959	1
		3960	} or do {
		3961	error $@;
		3962	cf::cleanup "error while reloading, exiting.";
		3963	};
		3964
		3965	info "reloaded";
		3966	--$RELOAD;
		3967	}
		3968
		3969	$t1 = AE::time - $t1;
		3970	info "reload completed in ${t1}s\n";
		3971	};
		3972
		3973	our $RELOAD_WATCHER; # used only during reload
		3974
		3975	sub reload_perl() {
		3976	# doing reload synchronously and two reloads happen back-to-back,
		3977	# coro crashes during coro_state_free->destroy here.
		3978
		3979	$RELOAD_WATCHER ||= cf::async {
		3980	Coro::AIO::aio_wait cache_extensions;
		3981
		3982	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3983	do_reload_perl;
		3984	undef $RELOAD_WATCHER;
		3985	};
2086	};	3986	};
2087
2088	if ($@) {
2089	warn $@;
2090	warn "error while reloading, exiting.";
2091	exit 1;
2092	}
2093
2094	warn "reloaded successfully";
2095	};
2096
2097	#############################################################################
2098
2099	unless ($LINK_MAP) {
2100	$LINK_MAP = cf::map::new;
2101
2102	$LINK_MAP->width (41);
2103	$LINK_MAP->height (41);
2104	$LINK_MAP->alloc;
2105	$LINK_MAP->path ("{link}");
2106	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2107	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2108
2109	# dirty hack because... archetypes are not yet loaded
2110	Event->timer (
2111	after => 2,
2112	cb => sub {
2113	$_[0]->w->cancel;
2114
2115	# provide some exits "home"
2116	my $exit = cf::object::new "exit";
2117
2118	$exit->slaying ($EMERGENCY_POSITION->[0]);
2119	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2120	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2121
2122	$LINK_MAP->insert ($exit->clone, 19, 19);
2123	$LINK_MAP->insert ($exit->clone, 19, 20);
2124	$LINK_MAP->insert ($exit->clone, 19, 21);
2125	$LINK_MAP->insert ($exit->clone, 20, 19);
2126	$LINK_MAP->insert ($exit->clone, 20, 21);
2127	$LINK_MAP->insert ($exit->clone, 21, 19);
2128	$LINK_MAP->insert ($exit->clone, 21, 20);
2129	$LINK_MAP->insert ($exit->clone, 21, 21);
2130
2131	$exit->destroy;
2132	});
2133
2134	$LINK_MAP->{deny_save} = 1;
2135	$LINK_MAP->{deny_reset} = 1;
2136
2137	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2138	}	3987	}
2139
2140	register "<global>", __PACKAGE__;
2141		3988
2142	register_command "reload" => sub {	3989	register_command "reload" => sub {
2143	my ($who, $arg) = @_;	3990	my ($who, $arg) = @_;
2144		3991
2145	if ($who->flag (FLAG_WIZ)) {	3992	if ($who->flag (FLAG_WIZ)) {
2146	$who->message ("start of reload.");
2147	reload;
2148	$who->message ("end of reload.");	3993	$who->message ("reloading server.");
		3994	async {
		3995	$Coro::current->{desc} = "perl_reload";
		3996	reload_perl;
		3997	};
2149	}	3998	}
2150	};	3999	};
2151		4000
2152	unshift @INC, $LIBDIR;	4001	unshift @INC, $LIBDIR;
2153		4002
2154	$TICK_WATCHER = Event->timer (	4003	my $bug_warning = 0;
2155	reentrant => 0,	4004
2156	prio => 0,	4005	our @WAIT_FOR_TICK;
2157	at => $NEXT_TICK || $TICK,	4006	our @WAIT_FOR_TICK_BEGIN;
2158	data => WF_AUTOCANCEL,	4007
2159	cb => sub {	4008	sub wait_for_tick {
2160	unless ($FREEZE) {	4009	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4010
		4011	my $signal = new Coro::Signal;
		4012	push @WAIT_FOR_TICK, $signal;
		4013	$signal->wait;
		4014	}
		4015
		4016	sub wait_for_tick_begin {
		4017	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4018
		4019	my $signal = new Coro::Signal;
		4020	push @WAIT_FOR_TICK_BEGIN, $signal;
		4021	$signal->wait;
		4022	}
		4023
		4024	sub tick {
		4025	if ($Coro::current != $Coro::main) {
		4026	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4027	unless ++$bug_warning > 10;
		4028	return;
		4029	}
		4030
2161	cf::server_tick; # one server iteration	4031	cf::server_tick; # one server iteration
2162	$RUNTIME += $TICK;
2163	}
2164		4032
2165	$NEXT_TICK += $TICK;	4033	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2166		4034
2167	# if we are delayed by four ticks or more, skip them all	4035	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2168	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4036	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2169		4037	Coro::async_pool {
2170	$TICK_WATCHER->at ($NEXT_TICK);	4038	$Coro::current->{desc} = "runtime saver";
2171	$TICK_WATCHER->start;
2172	},
2173	);
2174
2175	IO::AIO::max_poll_time $TICK * 0.2;
2176
2177	Event->io (
2178	fd => IO::AIO::poll_fileno,
2179	poll => 'r',
2180	prio => 5,
2181	data => WF_AUTOCANCEL,
2182	cb => \&IO::AIO::poll_cb,
2183	);
2184
2185	Event->timer (
2186	data => WF_AUTOCANCEL,
2187	after => 0,
2188	interval => 10,
2189	cb => sub {
2190	(Coro::unblock_sub {
2191	write_runtime	4039	write_runtime_sync
2192	or warn "ERROR: unable to write runtime file: $!";	4040	or error "ERROR: unable to write runtime file: $!";
2193	})->();	4041	};
2194	},	4042	}
2195	);	4043
		4044	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4045	$sig->send;
		4046	}
		4047	while (my $sig = shift @WAIT_FOR_TICK) {
		4048	$sig->send;
		4049	}
		4050
		4051	$LOAD = ($NOW - $TICK_START) / $TICK;
		4052	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4053
		4054	if (0) {
		4055	if ($NEXT_TICK) {
		4056	my $jitter = $TICK_START - $NEXT_TICK;
		4057	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4058	debug "jitter $JITTER\n";#d#
		4059	}
		4060	}
		4061	}
		4062
		4063	{
		4064	# configure BDB
		4065
		4066	BDB::min_parallel 16;
		4067	BDB::max_poll_reqs $TICK * 0.1;
		4068	$AnyEvent::BDB::WATCHER->priority (1);
		4069
		4070	unless ($DB_ENV) {
		4071	$DB_ENV = BDB::db_env_create;
		4072	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4073	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4074	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4075	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4076	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4077
		4078	cf::sync_job {
		4079	eval {
		4080	BDB::db_env_open
		4081	$DB_ENV,
		4082	$BDBDIR,
		4083	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4084	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4085	0666;
		4086
		4087	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4088	};
		4089
		4090	cf::cleanup "db_env_open(db): $@" if $@;
		4091	};
		4092	}
		4093
		4094	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4095	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4096	};
		4097	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4098	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4099	};
		4100	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4101	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4102	};
		4103	}
		4104
		4105	{
		4106	# configure IO::AIO
		4107
		4108	IO::AIO::min_parallel 8;
		4109	IO::AIO::max_poll_time $TICK * 0.1;
		4110	undef $AnyEvent::AIO::WATCHER;
		4111	}
		4112
		4113	my $_log_backtrace;
		4114
		4115	sub _log_backtrace {
		4116	my ($msg, @addr) = @_;
		4117
		4118	$msg =~ s/\n//;
		4119
		4120	# limit the # of concurrent backtraces
		4121	if ($_log_backtrace < 2) {
		4122	++$_log_backtrace;
		4123	my $perl_bt = Carp::longmess $msg;
		4124	async {
		4125	$Coro::current->{desc} = "abt $msg";
		4126
		4127	my @bt = fork_call {
		4128	@addr = map { sprintf "%x", $_ } @addr;
		4129	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4130	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4131	or die "addr2line: $!";
		4132
		4133	my @funcs;
		4134	my @res = <$fh>;
		4135	chomp for @res;
		4136	while (@res) {
		4137	my ($func, $line) = splice @res, 0, 2, ();
		4138	push @funcs, "[$func] $line";
		4139	}
		4140
		4141	@funcs
		4142	};
		4143
		4144	LOG llevInfo, "[ABT] $perl_bt\n";
		4145	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4146	LOG llevInfo, "[ABT] $_\n" for @bt;
		4147	--$_log_backtrace;
		4148	};
		4149	} else {
		4150	LOG llevInfo, "[ABT] $msg\n";
		4151	LOG llevInfo, "[ABT] [suppressed]\n";
		4152	}
		4153	}
		4154
		4155	# load additional modules
		4156	require "cf/$_.pm" for @EXTRA_MODULES;
		4157	cf::_connect_to_perl_2;
2196		4158
2197	END { cf::emergency_save }	4159	END { cf::emergency_save }
2198		4160
2199	1	4161	1
2200		4162

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