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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.550 by root, Fri May 14 22:56:47 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
28		64
29	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
30	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
31		69
32	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
33		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
		78
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
39		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	93	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
42		96
43	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
44	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
45	our $NEXT_TICK;	121	our $NEXT_TICK;
46	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 incloader);
47		130
48	our %CFG;	131	our %CFG;
49		132
50	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
52		136
53	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	139	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	140
57	our %EXT_CORO; # coroutines bound to extensions	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 $REALLY_UNLOOP; # never set to true, please :)
58		153
59	binmode STDOUT;	154	binmode STDOUT;
60	binmode STDERR;	155	binmode STDERR;
61		156
62	# read virtual server time, if available	157	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
64	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
65	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
66	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
67	}	162	}
68		163
69	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
70	mkdir cf::localdir . "/" . cf::playerdir;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		165
75	# a special map that is always available	166	mkdir $_
76	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
77	our $EMERGENCY_POSITION;	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 thread
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=cut
		242
		243	sub wait_for_tick();
		244	sub wait_for_tick_begin();
		245
		246	=item @cf::INVOKE_RESULTS
		247
		248	This array contains the results of the last C<invoke ()> call. When
		249	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		250	that call.
		251
		252	=item %cf::REFLECT
		253
		254	Contains, for each (C++) class name, a hash reference with information
		255	about object members (methods, scalars, arrays and flags) and other
		256	metadata, which is useful for introspection.
		257
112	=back	258	=back
113		259
114	=cut	260	=cut
115		261
116	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	263	sub warn (@) { LOG llevWarn , join "", @_ }
		264	sub info (@) { LOG llevInfo , join "", @_ }
		265	sub debug(@) { LOG llevDebug, join "", @_ }
		266	sub trace(@) { LOG llevTrace, join "", @_ }
		267
		268	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	269	my $msg = join "", @_;
119	utf8::encode $msg;
120		270
121	$msg .= "\n"	271	$msg .= "\n"
122	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
123		273
		274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		275
124	LOG llevError, $msg;	276	LOG llevWarn, $msg;
125	};	277	};
126	}	278
		279	$Coro::State::DIEHOOK = sub {
		280	return unless $^S eq 0; # "eq", not "=="
		281
		282	error Carp::longmess $_[0];
		283
		284	if (in_main) {#d#
		285	error "DIEHOOK called in main context, Coro bug?\n";#d#
		286	return;#d#
		287	}#d#
		288
		289	# kill coroutine otherwise
		290	Coro::terminate
		291	};
127		292
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	297	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		298	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	299	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		300
135	# we bless all objects into (empty) derived classes to force a method lookup	301	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	302	# within the Safe compartment.
137	for my $pkg (qw(	303	for my $pkg (qw(
138	cf::global cf::attachable	304	cf::global cf::attachable
139	cf::object cf::object::player	305	cf::object cf::object::player
140	cf::client cf::player	306	cf::client cf::player
141	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
142	cf::map cf::party cf::region	309	cf::party cf::region
143	)) {	310	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	312	}
147		313
148	$Event::DIED = sub {	314	$EV::DIED = sub {
149	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
150	};	316	};
151		317
152	my %ext_pkg;	318	#############################################################################
153	my @exts;
154	my @hook;
155		319
156	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
157		321
158	=over 4	322	=over 4
159		323
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	342	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	343	$d
180	} || "[unable to dump $_[0]: '$@']";	344	} || "[unable to dump $_[0]: '$@']";
181	}	345	}
182		346
183	use JSON::Syck (); # TODO# replace by JSON::PC once working
184
185	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
186		348
187	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
188		350
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
197		352
198	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
199		354
200	=cut	355	=cut
201		356
202	sub to_json($) {	357	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	358
204	JSON::Syck::Dump $_[0]	359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
		361
		362	=item $ref = cf::yaml_load $scalar
		363
		364	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		365
		366	=cut
		367
		368	sub fork_call(&@);
		369
		370	sub yaml_load($) {
		371	fork_call { YAML::XS::Load $_[0] } @_
		372	}
		373
		374	=item cf::post_init { BLOCK }
		375
		376	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		377	but I<before> the server starts ticking again.
		378
		379	The codeblock will have a single boolean argument to indicate whether this
		380	is a reload or not.
		381
		382	=cut
		383
		384	sub post_init(&) {
		385	push @POST_INIT, shift;
		386	}
		387
		388	sub _post_init {
		389	trace "running post_init jobs";
		390
		391	# run them in parallel...
		392
		393	my @join;
		394
		395	while () {
		396	push @join, map &Coro::async ($_, 0), @POST_INIT;
		397	@POST_INIT = ();
		398
		399	@join or last;
		400
		401	(pop @join)->join;
		402	}
205	}	403	}
206		404
207	=item cf::lock_wait $string	405	=item cf::lock_wait $string
208		406
209	Wait until the given lock is available. See cf::lock_acquire.	407	Wait until the given lock is available. See cf::lock_acquire.
210		408
211	=item my $lock = cf::lock_acquire $string	409	=item my $lock = cf::lock_acquire $string
212		410
213	Wait until the given lock is available and then acquires it and returns	411	Wait until the given lock is available and then acquires it and returns
214	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	412	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	413	for example when the coroutine gets canceled), the lock is automatically
216	returned.	414	returned.
217		415
		416	Locks are *not* recursive, locking from the same coro twice results in a
		417	deadlocked coro.
		418
218	Lock names should begin with a unique identifier (for example, cf::map::find	419	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and cf::map::load uses map_load).	420	uses map_find and cf::map::load uses map_load).
220		421
221	=cut	422	=item $locked = cf::lock_active $string
222		423
223	our %LOCK;	424	Return true if the lock is currently active, i.e. somebody has locked it.
		425
		426	=cut
		427
		428	our $LOCKS = new Coro::SemaphoreSet;
224		429
225	sub lock_wait($) {	430	sub lock_wait($) {
226	my ($key) = @_;	431	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	432	}
234		433
235	sub lock_acquire($) {	434	sub lock_acquire($) {
236	my ($key) = @_;	435	$LOCKS->guard ($_[0])
		436	}
237		437
238	# wait, to be sure we are not locked	438	sub lock_active($) {
239	lock_wait $key;	439	$LOCKS->count ($_[0]) < 1
240
241	$LOCK{$key} = [];
242
243	Coro::guard {
244	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };
246	}
247	}	440	}
248		441
249	sub freeze_mainloop {	442	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	443	tick_inhibit_inc;
251		444
252	my $guard = Coro::guard { $TICK_WATCHER->start };	445	&Guard::guard (\&tick_inhibit_dec);
253	$TICK_WATCHER->stop;	446	}
254	$guard	447
		448	=item cf::periodic $interval, $cb
		449
		450	Like EV::periodic, but randomly selects a starting point so that the actions
		451	get spread over time.
		452
		453	=cut
		454
		455	sub periodic($$) {
		456	my ($interval, $cb) = @_;
		457
		458	my $start = rand List::Util::min 180, $interval;
		459
		460	EV::periodic $start, $interval, 0, $cb
		461	}
		462
		463	=item cf::get_slot $time[, $priority[, $name]]
		464
		465	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		466	This call blocks and returns only when you have at least C<$time> seconds
		467	of cpu time till the next tick. The slot is only valid till the next cede.
		468
		469	The optional C<$name> can be used to identify the job to run. It might be
		470	used for statistical purposes and should identify the same time-class.
		471
		472	Useful for short background jobs.
		473
		474	=cut
		475
		476	our @SLOT_QUEUE;
		477	our $SLOT_QUEUE;
		478	our $SLOT_DECAY = 0.9;
		479
		480	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		481	$SLOT_QUEUE = Coro::async {
		482	$Coro::current->desc ("timeslot manager");
		483
		484	my $signal = new Coro::Signal;
		485	my $busy;
		486
		487	while () {
		488	next_job:
		489
		490	my $avail = cf::till_tick;
		491
		492	for (0 .. $#SLOT_QUEUE) {
		493	if ($SLOT_QUEUE[$_][0] <= $avail) {
		494	$busy = 0;
		495	my $job = splice @SLOT_QUEUE, $_, 1, ();
		496	$job->[2]->send;
		497	Coro::cede;
		498	goto next_job;
		499	} else {
		500	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		501	}
		502	}
		503
		504	if (@SLOT_QUEUE) {
		505	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		506	push @cf::WAIT_FOR_TICK, $signal;
		507	$signal->wait;
		508	} else {
		509	$busy = 0;
		510	Coro::schedule;
		511	}
		512	}
		513	};
		514
		515	sub get_slot($;$$) {
		516	return if tick_inhibit || $Coro::current == $Coro::main;
		517
		518	my ($time, $pri, $name) = @_;
		519
		520	$time = clamp $time, 0.01, $TICK * .6;
		521
		522	my $sig = new Coro::Signal;
		523
		524	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		525	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		526	$SLOT_QUEUE->ready;
		527	$sig->wait;
255	}	528	}
256		529
257	=item cf::async { BLOCK }	530	=item cf::async { BLOCK }
258		531
259	Currently the same as Coro::async_pool, meaning you cannot use	532	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		537
265	BEGIN { *async = \&Coro::async_pool }	538	BEGIN { *async = \&Coro::async_pool }
266		539
267	=item cf::sync_job { BLOCK }	540	=item cf::sync_job { BLOCK }
268		541
269	The design of crossfire+ requires that the main coro ($Coro::main) is	542	The design of Deliantra requires that the main coroutine ($Coro::main)
270	always able to handle events or runnable, as crossfire+ is only partly	543	is always able to handle events or runnable, as Deliantra is only
271	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	544	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		545	acceptable.
272		546
273	If it must be done, put the blocking parts into C<sync_job>. This will run	547	If it must be done, put the blocking parts into C<sync_job>. This will run
274	the given BLOCK in another coroutine while waiting for the result. The	548	the given BLOCK in another coroutine while waiting for the result. The
275	server will be frozen during this time, so the block should either finish	549	server will be frozen during this time, so the block should either finish
276	fast or be very important.	550	fast or be very important.
…		…
278	=cut	552	=cut
279		553
280	sub sync_job(&) {	554	sub sync_job(&) {
281	my ($job) = @_;	555	my ($job) = @_;
282		556
283	if ($Coro::current == $Coro::main) {	557	if (in_main) {
		558	my $time = AE::time;
		559
284	# this is the main coro, too bad, we have to block	560	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	561	# till the operation succeeds, freezing the server :/
286		562
287	# TODO: use suspend/resume instead	563	#LOG llevError, Carp::longmess "sync job";#d#
288	# (but this is cancel-safe)	564
289	my $freeze_guard = freeze_mainloop;	565	my $freeze_guard = freeze_mainloop;
290		566
291	my $busy = 1;	567	my $busy = 1;
292	my @res;	568	my @res;
293		569
294	(async {	570	(async {
		571	$Coro::current->desc ("sync job coro");
295	@res = eval { $job->() };	572	@res = eval { $job->() };
296	warn $@ if $@;	573	error $@ if $@;
297	undef $busy;	574	undef $busy;
298	})->prio (Coro::PRIO_MAX);	575	})->prio (Coro::PRIO_MAX);
299		576
300	while ($busy) {	577	while ($busy) {
301	Coro::cede or Event::one_event;	578	if (Coro::nready) {
		579	Coro::cede_notself;
		580	} else {
		581	EV::loop EV::LOOP_ONESHOT;
302	}	582	}
		583	}
		584
		585	my $time = AE::time - $time;
		586
		587	$TICK_START += $time; # do not account sync jobs to server load
303		588
304	wantarray ? @res : $res[0]	589	wantarray ? @res : $res[0]
305	} else {	590	} else {
306	# we are in another coroutine, how wonderful, everything just works	591	# we are in another coroutine, how wonderful, everything just works
307		592
…		…
309	}	594	}
310	}	595	}
311		596
312	=item $coro = cf::async_ext { BLOCK }	597	=item $coro = cf::async_ext { BLOCK }
313		598
314	Like async, but this coro is automcatially being canceled when the	599	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	600	extension calling this is being unloaded.
316		601
317	=cut	602	=cut
318		603
319	sub async_ext(&) {	604	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	612	$EXT_CORO{$coro+0} = $coro;
328		613
329	$coro	614	$coro
330	}	615	}
331		616
332	sub write_runtime {	617	=item fork_call { }, @args
333	my $runtime = cf::localdir . "/runtime";
334		618
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	619	Executes the given code block with the given arguments in a seperate
336	or return;	620	process, returning the results. Everything must be serialisable with
		621	Coro::Storable. May, of course, block. Note that the executed sub may
		622	never block itself or use any form of event handling.
337		623
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	624	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		625
342	aio_fsync $fh	626	sub post_fork {
343	and return;	627	reset_signals;
		628	}
344		629
345	close $fh	630	sub fork_call(&@) {
346	or return;	631	my ($cb, @args) = @_;
347		632
348	aio_rename "$runtime~", $runtime	633	# we seemingly have to make a local copy of the whole thing,
349	and return;	634	# otherwise perl prematurely frees the stuff :/
		635	# TODO: investigate and fix (likely this will be rather laborious)
350		636
		637	my @res = Coro::Util::fork_eval {
		638	cf::post_fork;
		639	&$cb
		640	} @args;
		641
		642	wantarray ? @res : $res[-1]
		643	}
		644
		645	sub objinfo {
351	1	646	(
		647	"counter value" => cf::object::object_count,
		648	"objects created" => cf::object::create_count,
		649	"objects destroyed" => cf::object::destroy_count,
		650	"freelist size" => cf::object::free_count,
		651	"allocated objects" => cf::object::objects_size,
		652	"active objects" => cf::object::actives_size,
		653	)
		654	}
		655
		656	=item $coin = coin_from_name $name
		657
		658	=cut
		659
		660	our %coin_alias = (
		661	"silver" => "silvercoin",
		662	"silvercoin" => "silvercoin",
		663	"silvercoins" => "silvercoin",
		664	"gold" => "goldcoin",
		665	"goldcoin" => "goldcoin",
		666	"goldcoins" => "goldcoin",
		667	"platinum" => "platinacoin",
		668	"platinumcoin" => "platinacoin",
		669	"platinumcoins" => "platinacoin",
		670	"platina" => "platinacoin",
		671	"platinacoin" => "platinacoin",
		672	"platinacoins" => "platinacoin",
		673	"royalty" => "royalty",
		674	"royalties" => "royalty",
		675	);
		676
		677	sub coin_from_name($) {
		678	$coin_alias{$_[0]}
		679	? cf::arch::find $coin_alias{$_[0]}
		680	: undef
		681	}
		682
		683	=item $value = cf::db_get $family => $key
		684
		685	Returns a single value from the environment database.
		686
		687	=item cf::db_put $family => $key => $value
		688
		689	Stores the given C<$value> in the family. It can currently store binary
		690	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		691
		692	=item $db = cf::db_table "name"
		693
		694	Create and/or open a new database table. The string must not be "db" and must be unique
		695	within each server.
		696
		697	=cut
		698
		699	sub db_table($) {
		700	cf::error "db_get called from main context"
		701	if $Coro::current == $Coro::main;
		702
		703	my ($name) = @_;
		704	my $db = BDB::db_create $DB_ENV;
		705
		706	eval {
		707	$db->set_flags (BDB::CHKSUM);
		708
		709	utf8::encode $name;
		710	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		711	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		712	cf::cleanup "db_open(db): $!" if $!;
		713	};
		714	cf::cleanup "db_open(db): $@" if $@;
		715
		716	$db
		717	}
		718
		719	our $DB;
		720
		721	sub db_init {
		722	$DB ||= db_table "db";
		723	}
		724
		725	sub db_get($$) {
		726	my $key = "$_[0]/$_[1]";
		727
		728	cf::error "db_get called from main context"
		729	if $Coro::current == $Coro::main;
		730
		731	BDB::db_get $DB, undef, $key, my $data;
		732
		733	$! ? ()
		734	: $data
		735	}
		736
		737	sub db_put($$$) {
		738	BDB::dbreq_pri 4;
		739	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		740	}
		741
		742	=item cf::cache $id => [$paths...], $processversion => $process
		743
		744	Generic caching function that returns the value of the resource $id,
		745	caching and regenerating as required.
		746
		747	This function can block.
		748
		749	=cut
		750
		751	sub cache {
		752	my ($id, $src, $processversion, $process) = @_;
		753
		754	my $meta =
		755	join "\x00",
		756	$processversion,
		757	map {
		758	aio_stat $_
		759	and Carp::croak "$_: $!";
		760
		761	($_, (stat _)[7,9])
		762	} @$src;
		763
		764	my $dbmeta = db_get cache => "$id/meta";
		765	if ($dbmeta ne $meta) {
		766	# changed, we may need to process
		767
		768	my @data;
		769	my $md5;
		770
		771	for (0 .. $#$src) {
		772	0 <= aio_load $src->[$_], $data[$_]
		773	or Carp::croak "$src->[$_]: $!";
		774	}
		775
		776	# if processing is expensive, check
		777	# checksum first
		778	if (1) {
		779	$md5 =
		780	join "\x00",
		781	$processversion,
		782	map {
		783	cf::cede_to_tick;
		784	($src->[$_], Digest::MD5::md5_hex $data[$_])
		785	} 0.. $#$src;
		786
		787
		788	my $dbmd5 = db_get cache => "$id/md5";
		789	if ($dbmd5 eq $md5) {
		790	db_put cache => "$id/meta", $meta;
		791
		792	return db_get cache => "$id/data";
		793	}
		794	}
		795
		796	my $t1 = Time::HiRes::time;
		797	my $data = $process->(\@data);
		798	my $t2 = Time::HiRes::time;
		799
		800	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		801
		802	db_put cache => "$id/data", $data;
		803	db_put cache => "$id/md5" , $md5;
		804	db_put cache => "$id/meta", $meta;
		805
		806	return $data;
		807	}
		808
		809	db_get cache => "$id/data"
		810	}
		811
		812	=item cf::datalog type => key => value, ...
		813
		814	Log a datalog packet of the given type with the given key-value pairs.
		815
		816	=cut
		817
		818	sub datalog($@) {
		819	my ($type, %kv) = @_;
		820	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	821	}
353		822
354	=back	823	=back
355		824
356	=cut	825	=cut
357		826
358	#############################################################################	827	#############################################################################
359		828
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479
480	#############################################################################
481
482	=head2 ATTACHABLE OBJECTS	829	=head2 ATTACHABLE OBJECTS
483		830
484	Many objects in crossfire are so-called attachable objects. That means you can	831	Many objects in deliantra are so-called attachable objects. That means you can
485	attach callbacks/event handlers (a collection of which is called an "attachment")	832	attach callbacks/event handlers (a collection of which is called an "attachment")
486	to it. All such attachable objects support the following methods.	833	to it. All such attachable objects support the following methods.
487		834
488	In the following description, CLASS can be any of C<global>, C<object>	835	In the following description, CLASS can be any of C<global>, C<object>
489	C<player>, C<client> or C<map> (i.e. the attachable objects in	836	C<player>, C<client> or C<map> (i.e. the attachable objects in
490	crossfire+).	837	Deliantra).
491		838
492	=over 4	839	=over 4
493		840
494	=item $attachable->attach ($attachment, key => $value...)	841	=item $attachable->attach ($attachment, key => $value...)
495		842
…		…
539	=item cf::CLASS::attachment $name, ...	886	=item cf::CLASS::attachment $name, ...
540		887
541	Register an attachment by C<$name> through which attachable objects of the	888	Register an attachment by C<$name> through which attachable objects of the
542	given CLASS can refer to this attachment.	889	given CLASS can refer to this attachment.
543		890
544	Some classes such as crossfire maps and objects can specify attachments	891	Some classes such as deliantra maps and objects can specify attachments
545	that are attached at load/instantiate time, thus the need for a name.	892	that are attached at load/instantiate time, thus the need for a name.
546		893
547	These calls expect any number of the following handler/hook descriptions:	894	These calls expect any number of the following handler/hook descriptions:
548		895
549	=over 4	896	=over 4
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	956	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	957	our @CB_MAP = ();
611		958
612	my %attachment;	959	my %attachment;
613		960
		961	sub cf::attachable::thawer_merge {
		962	# simply override everything except _meta
		963	local $_[0]{_meta};
		964	%{$_[0]} = %{$_[1]};
		965	}
		966
614	sub _attach_cb($$$$) {	967	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	968	my ($registry, $event, $prio, $cb) = @_;
616		969
617	use sort 'stable';	970	use sort 'stable';
618		971
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	1005	$registry = $CB_TYPE[$object_type] ||= [];
653		1006
654	} elsif ($type eq "subtype") {	1007	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	1008	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	1009	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1010	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		1011
659	} elsif ($type eq "package") {	1012	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	1013	my $pkg = shift @arg;
661		1014
662	while (my ($name, $id) = each %cb_id) {	1015	while (my ($name, $id) = each %cb_id) {
…		…
667		1020
668	} elsif (exists $cb_id{$type}) {	1021	} elsif (exists $cb_id{$type}) {
669	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1022	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
670		1023
671	} elsif (ref $type) {	1024	} elsif (ref $type) {
672	warn "attaching objects not supported, ignoring.\n";	1025	error "attaching objects not supported, ignoring.\n";
673		1026
674	} else {	1027	} else {
675	shift @arg;	1028	shift @arg;
676	warn "attach argument '$type' not supported, ignoring.\n";	1029	error "attach argument '$type' not supported, ignoring.\n";
677	}	1030	}
678	}	1031	}
679	}	1032	}
680		1033
681	sub _object_attach {	1034	sub _object_attach {
…		…
691	_attach $registry, $klass, @attach;	1044	_attach $registry, $klass, @attach;
692	}	1045	}
693		1046
694	$obj->{$name} = \%arg;	1047	$obj->{$name} = \%arg;
695	} else {	1048	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	1049	info "object uses attachment '$name' which is not available, postponing.\n";
697	}	1050	}
698		1051
699	$obj->{_attachment}{$name} = undef;	1052	$obj->{_attachment}{$name} = undef;
700	}	1053	}
701		1054
…		…
703	if (ref $_[0]) {	1056	if (ref $_[0]) {
704	_object_attach @_;	1057	_object_attach @_;
705	} else {	1058	} else {
706	_attach shift->_attach_registry, @_;	1059	_attach shift->_attach_registry, @_;
707	}	1060	}
		1061	_recalc_want;
708	};	1062	};
709		1063
710	# all those should be optimised	1064	# all those should be optimised
711	sub cf::attachable::detach {	1065	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	1066	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	1069	delete $obj->{_attachment}{$name};
716	reattach ($obj);	1070	reattach ($obj);
717	} else {	1071	} else {
718	Carp::croak "cannot, currently, detach class attachments";	1072	Carp::croak "cannot, currently, detach class attachments";
719	}	1073	}
		1074	_recalc_want;
720	};	1075	};
721		1076
722	sub cf::attachable::attached {	1077	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	1078	my ($obj, $name) = @_;
724		1079
…		…
739	";	1094	";
740	die if $@;	1095	die if $@;
741	}	1096	}
742		1097
743	our $override;	1098	our $override;
744	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1099	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
745		1100
746	sub override {	1101	sub override {
747	$override = 1;	1102	$override = 1;
748	@invoke_results = ();	1103	@INVOKE_RESULTS = (@_);
749	}	1104	}
750		1105
751	sub do_invoke {	1106	sub do_invoke {
752	my $event = shift;	1107	my $event = shift;
753	my $callbacks = shift;	1108	my $callbacks = shift;
754		1109
755	@invoke_results = ();	1110	@INVOKE_RESULTS = ();
756		1111
757	local $override;	1112	local $override;
758		1113
759	for (@$callbacks) {	1114	for (@$callbacks) {
760	eval { &{$_->[1]} };	1115	eval { &{$_->[1]} };
761		1116
762	if ($@) {	1117	if ($@) {
763	warn "$@";
764	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1118	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
765	override;	1119	override;
766	}	1120	}
767		1121
768	return 1 if $override;	1122	return 1 if $override;
769	}	1123	}
770		1124
771	0	1125	0
772	}	1126	}
773		1127
774	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1128	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
775		1129
776	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
777		1131
778	Generate an object-specific event with the given arguments.	1132	Generate an object-specific event with the given arguments.
779		1133
780	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1134	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
781	removed in future versions), and there is no public API to access override	1135	removed in future versions), and there is no public API to access override
782	results (if you must, access C<@cf::invoke_results> directly).	1136	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		1137
784	=back	1138	=back
785		1139
786	=cut	1140	=cut
787		1141
788	#############################################################################	1142	#############################################################################
789	# object support	1143	# object support
		1144
		1145	sub _object_equal($$);
		1146	sub _object_equal($$) {
		1147	my ($a, $b) = @_;
		1148
		1149	return 0 unless (ref $a) eq (ref $b);
		1150
		1151	if ("HASH" eq ref $a) {
		1152	my @ka = keys %$a;
		1153	my @kb = keys %$b;
		1154
		1155	return 0 if @ka != @kb;
		1156
		1157	for (0 .. $#ka) {
		1158	return 0 unless $ka[$_] eq $kb[$_];
		1159	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1160	}
		1161
		1162	} elsif ("ARRAY" eq ref $a) {
		1163
		1164	return 0 if @$a != @$b;
		1165
		1166	for (0 .. $#$a) {
		1167	return 0 unless _object_equal $a->[$_], $b->[$_];
		1168	}
		1169
		1170	} elsif ($a ne $b) {
		1171	return 0;
		1172	}
		1173
		1174	1
		1175	}
		1176
		1177	our $SLOW_MERGES;#d#
		1178	sub _can_merge {
		1179	my ($ob1, $ob2) = @_;
		1180
		1181	++$SLOW_MERGES;#d#
		1182
		1183	# we do the slow way here
		1184	return _object_equal $ob1, $ob2
		1185	}
790		1186
791	sub reattach {	1187	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1188	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	1189	my ($obj) = @_;
		1190
		1191	# no longer needed after getting rid of delete_package?
		1192	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		1193
795	my $registry = $obj->registry;	1194	my $registry = $obj->registry;
796		1195
797	@$registry = ();	1196	@$registry = ();
798		1197
…		…
803	for (@$attach) {	1202	for (@$attach) {
804	my ($klass, @attach) = @$_;	1203	my ($klass, @attach) = @$_;
805	_attach $registry, $klass, @attach;	1204	_attach $registry, $klass, @attach;
806	}	1205	}
807	} else {	1206	} else {
808	warn "object uses attachment '$name' that is not available, postponing.\n";	1207	info "object uses attachment '$name' that is not available, postponing.\n";
809	}	1208	}
810	}	1209	}
811	}	1210	}
812		1211
813	cf::attachable->attach (	1212	cf::attachable->attach (
814	prio => -1000000,	1213	prio => -1000000,
815	on_instantiate => sub {	1214	on_instantiate => sub {
816	my ($obj, $data) = @_;	1215	my ($obj, $data) = @_;
817		1216
818	$data = from_json $data;	1217	$data = decode_json $data;
819		1218
820	for (@$data) {	1219	for (@$data) {
821	my ($name, $args) = @$_;	1220	my ($name, $args) = @$_;
822		1221
823	$obj->attach ($name, %{$args || {} });	1222	$obj->attach ($name, %{$args || {} });
…		…
839	sub object_freezer_save {	1238	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1239	my ($filename, $rdata, $objs) = @_;
841		1240
842	sync_job {	1241	sync_job {
843	if (length $$rdata) {	1242	if (length $$rdata) {
		1243	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1244	trace sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1245	$decname, length $$rdata, scalar @$objs
		1246	if $VERBOSE_IO;
846		1247
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1248	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1249	aio_chmod $fh, SAVE_MODE;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1250	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1251	if ($cf::USE_FSYNC) {
		1252	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;
850	aio_fsync $fh;	1253	aio_fsync $fh;
		1254	}
851	close $fh;	1255	aio_close $fh;
852		1256
853	if (@$objs) {	1257	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1258	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	1259	aio_chmod $fh, SAVE_MODE;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1260	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1261	aio_write $fh, 0, (length $data), $data, 0;
		1262	if ($cf::USE_FSYNC) {
		1263	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;
858	aio_fsync $fh;	1264	aio_fsync $fh;
		1265	}
859	close $fh;	1266	aio_close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1267	aio_rename "$filename.pst~", "$filename.pst";
861	}	1268	}
862	} else {	1269	} else {
863	aio_unlink "$filename.pst";	1270	aio_unlink "$filename.pst";
864	}	1271	}
865		1272
866	aio_rename "$filename~", $filename;	1273	aio_rename "$filename~", $filename;
		1274
		1275	$filename =~ s%/[^/]+$%%;
		1276	aio_pathsync $filename if $cf::USE_FSYNC;
867	} else {	1277	} else {
868	warn "FATAL: $filename~: $!\n";	1278	error "unable to save objects: $filename~: $!\n";
869	}	1279	}
870	} else {	1280	} else {
871	aio_unlink $filename;	1281	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1282	aio_unlink "$filename.pst";
873	}	1283	}
874	}	1284	};
875	}	1285	}
876		1286
877	sub object_freezer_as_string {	1287	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1288	my ($rdata, $objs) = @_;
879		1289
…		…
891	or return;	1301	or return;
892		1302
893	unless (aio_stat "$filename.pst") {	1303	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1304	(aio_load "$filename.pst", $av) >= 0
895	or return;	1305	or return;
		1306
896	$av = eval { (Storable::thaw $av)->{objs} };	1307	my $st = eval { Coro::Storable::thaw $av };
		1308	$av = $st->{objs};
897	}	1309	}
898		1310
		1311	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1312	trace sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1313	$decname, length $data, scalar @{$av || []}
		1314	if $VERBOSE_IO;
		1315
901	return ($data, $av);	1316	($data, $av)
902	}	1317	}
		1318
		1319	=head2 COMMAND CALLBACKS
		1320
		1321	=over 4
		1322
		1323	=cut
903		1324
904	#############################################################################	1325	#############################################################################
905	# command handling &c	1326	# command handling &c
906		1327
907	=item cf::register_command $name => \&callback($ob,$args);	1328	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1341	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1342	}
922		1343
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1344	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1345
925	Register a callbackf ro execution when the client sends an extcmd packet.	1346	Register a callback for execution when the client sends an (synchronous)
		1347	extcmd packet. Ext commands will be processed in the order they are
		1348	received by the server, like other user commands. The first argument is
		1349	the logged-in player. Ext commands can only be processed after a player
		1350	has logged in successfully.
926		1351
927	If the callback returns something, it is sent back as if reply was being	1352	If the callback returns something, it is sent back as if reply was being
928	called.	1353	called.
929		1354
		1355	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1356
		1357	Register a callback for execution when the client sends an (asynchronous)
		1358	exticmd packet. Exti commands are processed by the server as soon as they
		1359	are received, i.e. out of order w.r.t. other commands. The first argument
		1360	is a client socket. Exti commands can be received anytime, even before
		1361	log-in.
		1362
		1363	If the callback returns something, it is sent back as if reply was being
		1364	called.
		1365
930	=cut	1366	=cut
931		1367
932	sub register_extcmd {	1368	sub register_extcmd {
933	my ($name, $cb) = @_;	1369	my ($name, $cb) = @_;
934		1370
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1371	$EXTCMD{$name} = $cb;
939	}	1372	}
		1373
		1374	sub register_exticmd {
		1375	my ($name, $cb) = @_;
		1376
		1377	$EXTICMD{$name} = $cb;
		1378	}
		1379
		1380	use File::Glob ();
940		1381
941	cf::player->attach (	1382	cf::player->attach (
942	on_command => sub {	1383	on_unknown_command => sub {
943	my ($pl, $name, $params) = @_;	1384	my ($pl, $name, $params) = @_;
944		1385
945	my $cb = $COMMAND{$name}	1386	my $cb = $COMMAND{$name}
946	or return;	1387	or return;
947		1388
…		…
952	cf::override;	1393	cf::override;
953	},	1394	},
954	on_extcmd => sub {	1395	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1396	my ($pl, $buf) = @_;
956		1397
957	my $msg = eval { from_json $buf };	1398	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1399
959	if (ref $msg) {	1400	if (ref $msg) {
		1401	my ($type, $reply, @payload) =
		1402	"ARRAY" eq ref $msg
		1403	? @$msg
		1404	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1405
		1406	my @reply;
		1407
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1408	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1409	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1410	}
		1411
		1412	$pl->ext_reply ($reply, @reply)
		1413	if $reply;
		1414
965	} else {	1415	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1416	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1417	}
968		1418
969	cf::override;	1419	cf::override;
970	},	1420	},
971	);	1421	);
972		1422
973	sub register {	1423	# "readahead" all extensions
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {	1424	sub cache_extensions {
980	my ($path) = @_;	1425	my $grp = IO::AIO::aio_group;
981		1426
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1427	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
983	my $base = $1;	1428	for (grep /\.ext$/, @{$_[0]}) {
984	my $pkg = $1;	1429	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }
1022
1023	# remove commands
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}	1430	}
1032	}	1431	};
1033		1432
1034	# remove extcmds	1433	$grp
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}	1434	}
1048		1435
1049	sub load_extensions {	1436	sub load_extensions {
		1437	info "loading extensions...";
		1438
		1439	cf::sync_job {
		1440	my %todo;
		1441
1050	for my $ext (<$LIBDIR/*.ext>) {	1442	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1443	next unless -r $path;
1052	eval {	1444
1053	load_extension $ext;	1445	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1446	my $base = $1;
		1447	my $pkg = $1;
		1448	$pkg =~ s/[^[:word:]]/_/g;
		1449	$pkg = "ext::$pkg";
		1450
		1451	open my $fh, "<:utf8", $path
		1452	or die "$path: $!";
		1453
		1454	my $source = do { local $/; <$fh> };
		1455
		1456	my %ext = (
		1457	path => $path,
		1458	base => $base,
		1459	pkg => $pkg,
		1460	);
		1461
		1462	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1463	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1464
		1465	$ext{source} =
		1466	"package $pkg; use common::sense;\n"
		1467	. "#line 1 \"$path\"\n{\n"
		1468	. $source
		1469	. "\n};\n1";
		1470
		1471	$todo{$base} = \%ext;
		1472	}
		1473
		1474	my $pass = 0;
		1475	my %done;
		1476	while (%todo) {
		1477	my $progress;
		1478
		1479	++$pass;
		1480
		1481	ext:
		1482	while (my ($k, $v) = each %todo) {
		1483	for (split /,\s*/, $v->{meta}{depends}) {
		1484	next ext
		1485	unless exists $done{$_};
		1486	}
		1487
		1488	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1489
		1490	my $active = eval $v->{source};
		1491
		1492	if (length $@) {
		1493	error "$v->{path}: $@\n";
		1494
		1495	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1496	if exists $v->{meta}{mandatory};
		1497
		1498	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1499	delete $todo{$k};
		1500	} else {
		1501	$done{$k} = delete $todo{$k};
		1502	push @EXTS, $v->{pkg};
		1503	$progress = 1;
		1504
		1505	info "$v->{base}: extension inactive.\n"
		1506	unless $active;
		1507	}
1054	1	1508	}
1055	} or warn "$ext not loaded: $@";	1509
		1510	unless ($progress) {
		1511	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1512
		1513	while (my ($k, $v) = each %todo) {
		1514	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1515	if exists $v->{meta}{mandatory};
		1516	}
		1517	}
		1518	}
1056	}	1519	};
1057	}	1520	}
1058		1521
1059	#############################################################################	1522	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1523
1062	*cf::mapsupport::on_clean = sub {	1524	=back
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		1525
1097	=head2 CORE EXTENSIONS	1526	=head2 CORE EXTENSIONS
1098		1527
1099	Functions and methods that extend core crossfire objects.	1528	Functions and methods that extend core deliantra objects.
1100		1529
1101	=cut	1530	=cut
1102		1531
1103	package cf::player;	1532	package cf::player;
1104		1533
…		…
1106		1535
1107	=head3 cf::player	1536	=head3 cf::player
1108		1537
1109	=over 4	1538	=over 4
1110		1539
		1540	=item cf::player::num_playing
		1541
		1542	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1543
		1544	=cut
		1545
		1546	sub num_playing {
		1547	scalar grep
		1548	$_->ob->map
		1549	&& !$_->hidden
		1550	&& !$_->ob->flag (cf::FLAG_WIZ),
		1551	cf::player::list
		1552	}
		1553
1111	=item cf::player::find $login	1554	=item cf::player::find $login
1112		1555
1113	Returns the given player object, loading it if necessary (might block).	1556	Returns the given player object, loading it if necessary (might block).
1114		1557
1115	=cut	1558	=cut
1116		1559
1117	sub playerdir($) {	1560	sub playerdir($) {
1118	cf::localdir	1561	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1562	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1563	}
1124		1564
1125	sub path($) {	1565	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1566	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1567
1128	(playerdir $login) . "/$login.pl"	1568	(playerdir $login) . "/playerdata"
1129	}	1569	}
1130		1570
1131	sub find_active($) {	1571	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1572	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1573	and $cf::PLAYER{$_[0]}->active
…		…
1136		1576
1137	sub exists($) {	1577	sub exists($) {
1138	my ($login) = @_;	1578	my ($login) = @_;
1139		1579
1140	$cf::PLAYER{$login}	1580	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1581	or !aio_stat path $login
1142	}	1582	}
1143		1583
1144	sub find($) {	1584	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1585	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1586	my $login = $_[0];
1147		1587
1148	my $guard = cf::lock_acquire "user_find:$login";	1588	my $guard = cf::lock_acquire "user_find:$login";
1149		1589
1150	$cf::PLAYER{$_[0]} || do {	1590	$cf::PLAYER{$_[0]} || do {
1151	my $pl = load_pl path $login	1591	# rename old playerfiles to new ones
		1592	#TODO: remove when no longer required
		1593	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1594	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1595	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1596	aio_unlink +(playerdir $login) . "/$login.pl";
		1597
		1598	my $f = new_from_file cf::object::thawer path $login
1152	or return;	1599	or return;
		1600
		1601	my $pl = cf::player::load_pl $f
		1602	or return;
		1603
		1604	local $cf::PLAYER_LOADING{$login} = $pl;
		1605	$f->resolve_delayed_derefs;
1153	$cf::PLAYER{$login} = $pl	1606	$cf::PLAYER{$login} = $pl
1154	}	1607	}
1155	}	1608	}
1156	}	1609	}
		1610
		1611	cf::player->attach (
		1612	on_load => sub {
		1613	my ($pl, $path) = @_;
		1614
		1615	# restore slots saved in save, below
		1616	my $slots = delete $pl->{_slots};
		1617
		1618	$pl->ob->current_weapon ($slots->[0]);
		1619	$pl->combat_ob ($slots->[1]);
		1620	$pl->ranged_ob ($slots->[2]);
		1621	},
		1622	);
1157		1623
1158	sub save($) {	1624	sub save($) {
1159	my ($pl) = @_;	1625	my ($pl) = @_;
1160		1626
1161	return if $pl->{deny_save};	1627	return if $pl->{deny_save};
…		…
1166	return if $pl->{deny_save};	1632	return if $pl->{deny_save};
1167		1633
1168	aio_mkdir playerdir $pl, 0770;	1634	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1635	$pl->{last_save} = $cf::RUNTIME;
1170		1636
		1637	cf::get_slot 0.01;
		1638
		1639	# save slots, to be restored later
		1640	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1641
1171	$pl->save_pl ($path);	1642	$pl->save_pl ($path);
1172	Coro::cede;	1643	cf::cede_to_tick;
1173	}	1644	}
1174		1645
1175	sub new($) {	1646	sub new($) {
1176	my ($login) = @_;	1647	my ($login) = @_;
1177		1648
…		…
1183	$cf::PLAYER{$login} = $self;	1654	$cf::PLAYER{$login} = $self;
1184		1655
1185	$self	1656	$self
1186	}	1657	}
1187		1658
		1659	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1660
		1661	=cut
		1662
		1663	sub send_msg {
		1664	my $ns = shift->ns
		1665	or return;
		1666	$ns->send_msg (@_);
		1667	}
		1668
1188	=item $pl->quit_character	1669	=item $pl->quit_character
1189		1670
1190	Nukes the player without looking back. If logged in, the connection will	1671	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1672	be destroyed. May block for a long time.
1192		1673
1193	=cut	1674	=cut
1194		1675
1195	sub quit_character {	1676	sub quit_character {
1196	my ($pl) = @_;	1677	my ($pl) = @_;
1197		1678
		1679	my $name = $pl->ob->name;
		1680
1198	$pl->{deny_save} = 1;	1681	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1682	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1200		1683
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1684	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1202	$pl->deactivate;	1685	$pl->deactivate;
		1686
		1687	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1203	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1688	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1689	ext::highscore::check ($pl->ob);
		1690
1204	$pl->ns->destroy if $pl->ns;	1691	$pl->ns->destroy if $pl->ns;
1205		1692
1206	my $path = playerdir $pl;	1693	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1694	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1695	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1696	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1697	$pl->destroy;
		1698
		1699	my $prefix = qr<^~\Q$name\E/>;
		1700
		1701	# nuke player maps
		1702	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1703
1211	IO::AIO::aio_rmtree $temp;	1704	IO::AIO::aio_rmtree $temp;
		1705	}
		1706
		1707	=item $pl->kick
		1708
		1709	Kicks a player out of the game. This destroys the connection.
		1710
		1711	=cut
		1712
		1713	sub kick {
		1714	my ($pl, $kicker) = @_;
		1715
		1716	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1717	$pl->killer ("kicked");
		1718	$pl->ns->destroy;
1212	}	1719	}
1213		1720
1214	=item cf::player::list_logins	1721	=item cf::player::list_logins
1215		1722
1216	Returns am arrayref of all valid playernames in the system, can take a	1723	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1724	while and may block, so not sync_job-capable, ever.
1218		1725
1219	=cut	1726	=cut
1220		1727
1221	sub list_logins {	1728	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1729	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1730	or return [];
1224		1731
1225	my @logins;	1732	my @logins;
1226		1733
1227	for my $login (@$dirs) {	1734	for my $login (@$dirs) {
		1735	my $path = path $login;
		1736
		1737	# a .pst is a dead give-away for a valid player
		1738	# if no pst file found, open and chekc for blocked users
		1739	if (aio_stat "$path.pst") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1740	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1741	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1742	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1743	}
1231		1744
1232	utf8::decode $login;	1745	utf8::decode $login;
1233	push @logins, $login;	1746	push @logins, $login;
1234	}	1747	}
1235		1748
1236	\@logins	1749	\@logins
1237	}	1750	}
1238		1751
1239	=item $player->maps	1752	=item $player->maps
1240		1753
		1754	=item cf::player::maps $login
		1755
1241	Returns an arrayref of cf::path's of all maps that are private for this	1756	Returns an arrayref of map paths that are private for this
1242	player. May block.	1757	player. May block.
1243		1758
1244	=cut	1759	=cut
1245		1760
1246	sub maps($) {	1761	sub maps($) {
1247	my ($pl) = @_;	1762	my ($pl) = @_;
		1763
		1764	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1765
1249	my $files = aio_readdir playerdir $pl	1766	my $files = aio_readdir playerdir $pl
1250	or return;	1767	or return;
1251		1768
1252	my @paths;	1769	my @paths;
1253		1770
1254	for (@$files) {	1771	for (@$files) {
1255	utf8::decode $_;	1772	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1773	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1774	next unless /^$PATH_SEP/o;
1258		1775
1259	s/$PATH_SEP/\//g;	1776	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1777	}
1262		1778
1263	\@paths	1779	\@paths
1264	}	1780	}
1265		1781
		1782	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1783
		1784	Expand deliantra pod fragments into protocol xml.
		1785
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1786	=item $player->ext_reply ($msgid, @msg)
1267		1787
1268	Sends an ext reply to the player.	1788	Sends an ext reply to the player.
1269		1789
1270	=cut	1790	=cut
1271		1791
1272	sub ext_reply($$$%) {	1792	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1793	my ($self, $id, @msg) = @_;
1274		1794
1275	$msg{msgid} = $id;	1795	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1796	}
1279		1797
1280	package cf;	1798	=item $player->ext_msg ($type, @msg)
		1799
		1800	Sends an ext event to the client.
		1801
		1802	=cut
		1803
		1804	sub ext_msg($$@) {
		1805	my ($self, $type, @msg) = @_;
		1806
		1807	$self->ns->ext_msg ($type, @msg);
		1808	}
		1809
		1810	=head3 cf::region
		1811
		1812	=over 4
		1813
		1814	=cut
		1815
		1816	package cf::region;
		1817
		1818	=item cf::region::find_by_path $path
		1819
		1820	Tries to decuce the likely region for a map knowing only its path.
		1821
		1822	=cut
		1823
		1824	sub find_by_path($) {
		1825	my ($path) = @_;
		1826
		1827	$path =~ s/^~[^\/]*//; # skip ~login
		1828
		1829	my ($match, $specificity);
		1830
		1831	for my $region (list) {
		1832	if ($region->{match} && $path =~ $region->{match}) {
		1833	($match, $specificity) = ($region, $region->specificity)
		1834	if $region->specificity > $specificity;
		1835	}
		1836	}
		1837
		1838	$match
		1839	}
1281		1840
1282	=back	1841	=back
1283
1284		1842
1285	=head3 cf::map	1843	=head3 cf::map
1286		1844
1287	=over 4	1845	=over 4
1288		1846
…		…
1291	package cf::map;	1849	package cf::map;
1292		1850
1293	use Fcntl;	1851	use Fcntl;
1294	use Coro::AIO;	1852	use Coro::AIO;
1295		1853
		1854	use overload
		1855	'""' => \&as_string,
		1856	fallback => 1;
		1857
1296	our $MAX_RESET = 3600;	1858	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1859	our $DEFAULT_RESET = 3000;
1298		1860
1299	sub generate_random_map {	1861	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1862	my ($self, $rmp) = @_;
		1863
		1864	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1301		1865
1302	# mit "rum" bekleckern, nicht	1866	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1867	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1868	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1869	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1870	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1871	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1872	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1873	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1874	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1875	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1876	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1877	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1878	(cf::region::find $rmp->{region}), $rmp->{custom}
		1879	)
1316	}	1880	}
1317		1881
1318	# and all this just because we cannot iterate over	1882	=item cf::map->register ($regex, $prio)
1319	# all maps in C++...
1320	sub change_all_map_light {
1321	my ($change) = @_;
1322		1883
1323	$_->change_map_light ($change)	1884	Register a handler for the map path matching the given regex at the
1324	for grep $_->outdoor, values %cf::MAP;	1885	givne priority (higher is better, built-in handlers have priority 0, the
1325	}	1886	default).
1326		1887
1327	sub try_load_header($) {	1888	=cut
		1889
		1890	sub register {
		1891	my (undef, $regex, $prio) = @_;
		1892	my $pkg = caller;
		1893
		1894	push @{"$pkg\::ISA"}, __PACKAGE__;
		1895
		1896	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1897	}
		1898
		1899	# also paths starting with '/'
		1900	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1901
		1902	sub thawer_merge {
		1903	my ($self, $merge) = @_;
		1904
		1905	# we have to keep some variables in memory intact
		1906	local $self->{path};
		1907	local $self->{load_path};
		1908
		1909	$self->SUPER::thawer_merge ($merge);
		1910	}
		1911
		1912	sub normalise {
1328	my ($path) = @_;	1913	my ($path, $base) = @_;
		1914
		1915	$path = "$path"; # make sure it's a string
		1916
		1917	$path =~ s/\.map$//;
		1918
		1919	# map plan:
		1920	#
		1921	# /! non-realised random map exit (special hack!)
		1922	# {... are special paths that are not being touched
		1923	# ?xxx/... are special absolute paths
		1924	# ?random/... random maps
		1925	# /... normal maps
		1926	# ~user/... per-player map of a specific user
		1927
		1928	$path =~ s/$PATH_SEP/\//go;
		1929
		1930	# treat it as relative path if it starts with
		1931	# something that looks reasonable
		1932	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1933	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1934
		1935	$base =~ s{[^/]+/?$}{};
		1936	$path = "$base/$path";
		1937	}
		1938
		1939	for ($path) {
		1940	redo if s{//}{/};
		1941	redo if s{/\.?/}{/};
		1942	redo if s{/[^/]+/\.\./}{/};
		1943	}
		1944
		1945	$path
		1946	}
		1947
		1948	sub new_from_path {
		1949	my (undef, $path, $base) = @_;
		1950
		1951	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1952
		1953	$path = normalise $path, $base;
		1954
		1955	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1956	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1957	my $self = bless cf::map::new, $pkg;
		1958	$self->{path} = $path; $self->path ($path);
		1959	$self->init; # pass $1 etc.
		1960	return $self;
		1961	}
		1962	}
		1963
		1964	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1965	()
		1966	}
		1967
		1968	sub init {
		1969	my ($self) = @_;
		1970
		1971	$self
		1972	}
		1973
		1974	sub as_string {
		1975	my ($self) = @_;
		1976
		1977	"$self->{path}"
		1978	}
		1979
		1980	# the displayed name, this is a one way mapping
		1981	sub visible_name {
		1982	&as_string
		1983	}
		1984
		1985	# the original (read-only) location
		1986	sub load_path {
		1987	my ($self) = @_;
		1988
		1989	"$MAPDIR/$self->{path}.map"
		1990	}
		1991
		1992	# the temporary/swap location
		1993	sub save_path {
		1994	my ($self) = @_;
		1995
		1996	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1997	"$TMPDIR/$path.map"
		1998	}
		1999
		2000	# the unique path, undef == no special unique path
		2001	sub uniq_path {
		2002	my ($self) = @_;
		2003
		2004	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2005	"$UNIQUEDIR/$path"
		2006	}
		2007
		2008	sub decay_objects {
		2009	my ($self) = @_;
		2010
		2011	return if $self->{deny_reset};
		2012
		2013	$self->do_decay_objects;
		2014	}
		2015
		2016	sub unlink_save {
		2017	my ($self) = @_;
		2018
		2019	utf8::encode (my $save = $self->save_path);
		2020	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2021	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2022	}
		2023
		2024	sub load_header_from($) {
		2025	my ($self, $path) = @_;
1329		2026
1330	utf8::encode $path;	2027	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	2028	my $f = new_from_file cf::object::thawer $path
1332	or return;	2029	or return;
1333		2030
1334	my $map = cf::map::new	2031	$self->_load_header ($f)
1335	or return;	2032	or return;
1336		2033
1337	# for better error messages only, will be overwritten	2034	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	2035	$f->resolve_delayed_derefs;
1339		2036
1340	$map->load_header ($path)	2037	$self->{load_path} = $path;
		2038
		2039	1
		2040	}
		2041
		2042	sub load_header_orig {
		2043	my ($self) = @_;
		2044
		2045	$self->load_header_from ($self->load_path)
		2046	}
		2047
		2048	sub load_header_temp {
		2049	my ($self) = @_;
		2050
		2051	$self->load_header_from ($self->save_path)
		2052	}
		2053
		2054	sub prepare_temp {
		2055	my ($self) = @_;
		2056
		2057	$self->last_access ((delete $self->{last_access})
		2058	|| $cf::RUNTIME); #d#
		2059	# safety
		2060	$self->{instantiate_time} = $cf::RUNTIME
		2061	if $self->{instantiate_time} > $cf::RUNTIME;
		2062	}
		2063
		2064	sub prepare_orig {
		2065	my ($self) = @_;
		2066
		2067	$self->{load_original} = 1;
		2068	$self->{instantiate_time} = $cf::RUNTIME;
		2069	$self->last_access ($cf::RUNTIME);
		2070	$self->instantiate;
		2071	}
		2072
		2073	sub load_header {
		2074	my ($self) = @_;
		2075
		2076	if ($self->load_header_temp) {
		2077	$self->prepare_temp;
		2078	} else {
		2079	$self->load_header_orig
1341	or return;	2080	or return;
		2081	$self->prepare_orig;
		2082	}
1342		2083
1343	$map->{load_path} = $path;	2084	$self->{deny_reset} = 1
		2085	if $self->no_reset;
1344		2086
1345	$map	2087	$self->default_region (cf::region::find_by_path $self->{path})
		2088	unless $self->default_region;
		2089
		2090	1
1346	}	2091	}
1347		2092
1348	sub find;	2093	sub find;
1349	sub find {	2094	sub find {
1350	my ($path, $origin) = @_;	2095	my ($path, $origin) = @_;
1351		2096
1352	#warn "find<$path,$origin>\n";#d#	2097	cf::cede_to_tick;
1353		2098
1354	$path = new cf::path $path, $origin && $origin->path;	2099	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		2100
1357	cf::lock_wait "map_find:$key";	2101	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1358
1359	$cf::MAP{$key} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	2102	my $guard2 = cf::lock_acquire "map_find:$path";
1361		2103
1362	# do it the slow way	2104	$cf::MAP{$path} || do {
1363	my $map = try_load_header $path->save_path;	2105	my $map = new_from_path cf::map $path
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	2106	or return;
1381		2107
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	2108	$map->{last_save} = $cf::RUNTIME;
1394		2109
1395	Coro::cede;	2110	$map->load_header
		2111	or return;
1396		2112
1397	if ($map->should_reset) {	2113	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2114	# doing this can freeze the server in a sync job, obviously
		2115	#$cf::WAIT_FOR_TICK->wait;
		2116	undef $guard2;
		2117	undef $guard1;
1398	$map->reset;	2118	$map->reset;
1399	undef $guard;
1400	$map = find $path	2119	return find $path;
1401	or return;
1402	}	2120	}
1403		2121
1404	$cf::MAP{$key} = $map	2122	$cf::MAP{$path} = $map
1405	}	2123	}
1406	}	2124	}
		2125
		2126	sub pre_load { }
		2127	#sub post_load { } # XS
1407		2128
1408	sub load {	2129	sub load {
1409	my ($self) = @_;	2130	my ($self) = @_;
1410		2131
		2132	local $self->{deny_reset} = 1; # loading can take a long time
		2133
1411	my $path = $self->{path};	2134	my $path = $self->{path};
		2135
		2136	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2137	my $guard = cf::lock_acquire "map_data:$path";
1413		2138
		2139	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2140	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2141
1416	$self->in_memory (cf::MAP_LOADING);	2142	$self->in_memory (cf::MAP_LOADING);
1417		2143
1418	$self->alloc;	2144	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	2145
		2146	$self->pre_load;
		2147	cf::cede_to_tick;
		2148
		2149	my $f = new_from_file cf::object::thawer $self->{load_path};
		2150	$f->skip_block;
		2151	$self->_load_objects ($f)
1420	or return;	2152	or return;
1421		2153
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2154	$self->post_load_original
1423	if delete $self->{load_original};	2155	if delete $self->{load_original};
1424		2156
1425	if (my $uniq = $path->uniq_path) {	2157	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2158	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2159	unless (aio_stat $uniq) {
		2160	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2161	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	2162	$self->_load_objects ($f);
		2163	$f->resolve_delayed_derefs;
		2164	}
1430	}	2165	}
1431	}	2166	}
1432		2167
1433	Coro::cede;	2168	$f->resolve_delayed_derefs;
1434		2169
		2170	cf::cede_to_tick;
1435	# now do the right thing for maps	2171	# now do the right thing for maps
1436	$self->link_multipart_objects;	2172	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	2173	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	2174	unless $self->difficulty;
		2175	cf::cede_to_tick;
		2176
		2177	unless ($self->{deny_activate}) {
		2178	$self->decay_objects;
		2179	$self->fix_auto_apply;
		2180	$self->update_buttons;
		2181	cf::cede_to_tick;
1448	$self->activate;	2182	$self->activate;
1449	}	2183	}
1450		2184
1451	Coro::cede;	2185	$self->{last_save} = $cf::RUNTIME;
		2186	$self->last_access ($cf::RUNTIME);
1452		2187
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2188	$self->in_memory (cf::MAP_ACTIVE);
		2189	}
		2190
		2191	$self->post_load;
		2192	}
		2193
		2194	# customize the map for a given player, i.e.
		2195	# return the _real_ map. used by e.g. per-player
		2196	# maps to change the path to ~playername/mappath
		2197	sub customise_for {
		2198	my ($self, $ob) = @_;
		2199
		2200	return find "~" . $ob->name . "/" . $self->{path}
		2201	if $self->per_player;
		2202
		2203	# return find "?party/" . $ob->name . "/" . $self->{path}
		2204	# if $self->per_party;
		2205
		2206	$self
		2207	}
		2208
		2209	# find and load all maps in the 3x3 area around a map
		2210	sub load_neighbours {
		2211	my ($map) = @_;
		2212
		2213	my @neigh; # diagonal neighbours
		2214
		2215	for (0 .. 3) {
		2216	my $neigh = $map->tile_path ($_)
		2217	or next;
		2218	$neigh = find $neigh, $map
		2219	or next;
		2220	$neigh->load;
		2221
		2222	# now find the diagonal neighbours
		2223	push @neigh,
		2224	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2225	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2226	}
		2227
		2228	for (grep defined $_->[0], @neigh) {
		2229	my ($path, $origin) = @$_;
		2230	my $neigh = find $path, $origin
		2231	or next;
		2232	$neigh->load;
		2233	}
1454	}	2234	}
1455		2235
1456	sub find_sync {	2236	sub find_sync {
1457	my ($path, $origin) = @_;	2237	my ($path, $origin) = @_;
1458		2238
1459	cf::sync_job { cf::map::find $path, $origin }	2239	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2240	if $Coro::current == $Coro::main;
		2241
		2242	find $path, $origin
1460	}	2243	}
1461		2244
1462	sub do_load_sync {	2245	sub do_load_sync {
1463	my ($map) = @_;	2246	my ($map) = @_;
1464		2247
1465	cf::sync_job { $map->load };	2248	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2249	if $Coro::current == $Coro::main;
		2250
		2251	$map->load;
		2252	}
		2253
		2254	our %MAP_PREFETCH;
		2255	our $MAP_PREFETCHER = undef;
		2256
		2257	sub find_async {
		2258	my ($path, $origin, $load) = @_;
		2259
		2260	$path = normalise $path, $origin && $origin->{path};
		2261
		2262	if (my $map = $cf::MAP{$path}) {
		2263	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2264	}
		2265
		2266	$MAP_PREFETCH{$path} |= $load;
		2267
		2268	$MAP_PREFETCHER ||= cf::async {
		2269	$Coro::current->{desc} = "map prefetcher";
		2270
		2271	while (%MAP_PREFETCH) {
		2272	while (my ($k, $v) = each %MAP_PREFETCH) {
		2273	if (my $map = find $k) {
		2274	$map->load if $v;
		2275	}
		2276
		2277	delete $MAP_PREFETCH{$k};
		2278	}
		2279	}
		2280	undef $MAP_PREFETCHER;
		2281	};
		2282	$MAP_PREFETCHER->prio (6);
		2283
		2284	()
		2285	}
		2286
		2287	# common code, used by both ->save and ->swapout
		2288	sub _save {
		2289	my ($self) = @_;
		2290
		2291	$self->{last_save} = $cf::RUNTIME;
		2292
		2293	return unless $self->dirty;
		2294
		2295	my $save = $self->save_path; utf8::encode $save;
		2296	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2297
		2298	$self->{load_path} = $save;
		2299
		2300	return if $self->{deny_save};
		2301
		2302	local $self->{last_access} = $self->last_access;#d#
		2303
		2304	cf::async {
		2305	$Coro::current->{desc} = "map player save";
		2306	$_->contr->save for $self->players;
		2307	};
		2308
		2309	cf::get_slot 0.02;
		2310
		2311	if ($uniq) {
		2312	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2313	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2314	} else {
		2315	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2316	}
1466	}	2317	}
1467		2318
1468	sub save {	2319	sub save {
1469	my ($self) = @_;	2320	my ($self) = @_;
1470		2321
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2322	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2323
1473	$self->{last_save} = $cf::RUNTIME;	2324	$self->_save;
1474
1475	return unless $self->dirty;
1476
1477	my $save = $self->{path}->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1479
1480	$self->{load_path} = $save;
1481
1482	return if $self->{deny_save};
1483
1484	local $self->{last_access} = $self->last_access;#d#
1485
1486	cf::async {
1487	$_->contr->save for $self->players;
1488	};
1489
1490	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}
1496	}	2325	}
1497		2326
1498	sub swap_out {	2327	sub swap_out {
1499	my ($self) = @_;	2328	my ($self) = @_;
1500		2329
1501	# save first because save cedes
1502	$self->save;
1503
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2330	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2331
		2332	return if $self->in_memory != cf::MAP_ACTIVE;
		2333	return if $self->{deny_save};
1506	return if $self->players;	2334	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};
1509		2335
		2336	# first deactivate the map and "unlink" it from the core
		2337	$self->deactivate;
		2338	$_->clear_links_to ($self) for values %cf::MAP;
		2339	$self->in_memory (cf::MAP_SWAPPED);
		2340
		2341	# then atomically save
		2342	$self->_save;
		2343
		2344	# then free the map
1510	$self->clear;	2345	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2346	}
1513		2347
1514	sub reset_at {	2348	sub reset_at {
1515	my ($self) = @_;	2349	my ($self) = @_;
1516		2350
1517	# TODO: safety, remove and allow resettable per-player maps	2351	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2352	return 1e99 if $self->{deny_reset};
1520		2353
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2356
…		…
1528	my ($self) = @_;	2361	my ($self) = @_;
1529		2362
1530	$self->reset_at <= $cf::RUNTIME	2363	$self->reset_at <= $cf::RUNTIME
1531	}	2364	}
1532		2365
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	2366	sub reset {
1555	my ($self) = @_;	2367	my ($self) = @_;
1556		2368
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2369	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2370
1559	return if $self->players;	2371	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2372
1562	warn "resetting map ", $self->path;#d#	2373	cf::trace "resetting map ", $self->path, "\n";
		2374
		2375	$self->in_memory (cf::MAP_SWAPPED);
		2376
		2377	# need to save uniques path
		2378	unless ($self->{deny_save}) {
		2379	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2380
		2381	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2382	if $uniq;
		2383	}
1563		2384
1564	delete $cf::MAP{$self->path};	2385	delete $cf::MAP{$self->path};
1565		2386
		2387	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2388	$_->clear_links_to ($self) for values %cf::MAP;
		2389	$self->clear;
1567		2390
1568	$self->unlink_save;	2391	$self->unlink_save;
1569	$self->destroy;	2392	$self->destroy;
1570	}	2393	}
1571		2394
1572	my $nuke_counter = "aaaa";	2395	my $nuke_counter = "aaaa";
1573		2396
1574	sub nuke {	2397	sub nuke {
1575	my ($self) = @_;	2398	my ($self) = @_;
1576		2399
		2400	{
		2401	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2402
		2403	delete $cf::MAP{$self->path};
		2404
		2405	$self->unlink_save;
		2406
		2407	bless $self, "cf::map::wrap";
		2408	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2409	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2410	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2411	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2412
		2413	$cf::MAP{$self->path} = $self;
		2414	}
		2415
1580	$self->reset; # polite request, might not happen	2416	$self->reset; # polite request, might not happen
1581	}	2417	}
1582		2418
1583	sub customise_for {	2419	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2420
1586	if ($map->per_player) {	2421	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2422	maps. May block.
		2423
		2424	=cut
		2425
		2426	sub tmp_maps() {
1588	}	2427	[
1589		2428	map {
1590	$map	2429	utf8::decode $_;
		2430	/\.map$/
		2431	? normalise $_
		2432	: ()
		2433	} @{ aio_readdir $TMPDIR or [] }
		2434	]
1591	}	2435	}
1592		2436
1593	sub emergency_save {	2437	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2438
1596	warn "enter emergency perl save\n";	2439	Returns an arrayref with all map paths of currently instantiated and saved
		2440	random maps. May block.
1597		2441
1598	cf::sync_job {	2442	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2443
1603	warn "begin emergency map save\n";	2444	sub random_maps() {
1604	$_->save for values %cf::MAP;	2445	[
1605	warn "end emergency map save\n";	2446	map {
		2447	utf8::decode $_;
		2448	/\.map$/
		2449	? normalise "?random/$_"
		2450	: ()
		2451	} @{ aio_readdir $RANDOMDIR or [] }
		2452	]
		2453	}
		2454
		2455	=item cf::map::unique_maps
		2456
		2457	Returns an arrayref of paths of all shared maps that have
		2458	instantiated unique items. May block.
		2459
		2460	=cut
		2461
		2462	sub unique_maps() {
		2463	[
		2464	map {
		2465	utf8::decode $_;
		2466	s/\.map$//; # TODO future compatibility hack
		2467	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2468	? ()
		2469	: normalise $_
		2470	} @{ aio_readdir $UNIQUEDIR or [] }
		2471	]
		2472	}
		2473
		2474	=item cf::map::static_maps
		2475
		2476	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2477	file in the shared directory excluding F</styles> and F</editor>). May
		2478	block.
		2479
		2480	=cut
		2481
		2482	sub static_maps() {
		2483	my @dirs = "";
		2484	my @maps;
		2485
		2486	while (@dirs) {
		2487	my $dir = shift @dirs;
		2488
		2489	next if $dir eq "/styles" || $dir eq "/editor";
		2490
		2491	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2492	or return;
		2493
		2494	for (@$files) {
		2495	s/\.map$// or next;
		2496	utf8::decode $_;
		2497	push @maps, "$dir/$_";
		2498	}
		2499
		2500	push @dirs, map "$dir/$_", @$dirs;
1606	};	2501	}
1607		2502
1608	warn "leave emergency perl save\n";	2503	\@maps
		2504	}
		2505
		2506	=back
		2507
		2508	=head3 cf::object
		2509
		2510	=cut
		2511
		2512	package cf::object;
		2513
		2514	=over 4
		2515
		2516	=item $ob->inv_recursive
		2517
		2518	Returns the inventory of the object I<and> their inventories, recursively,
		2519	but I<not> the object itself.
		2520
		2521	=cut
		2522
		2523	sub inv_recursive_;
		2524	sub inv_recursive_ {
		2525	map { $_, inv_recursive_ $_->inv } @_
		2526	}
		2527
		2528	sub inv_recursive {
		2529	inv_recursive_ inv $_[0]
		2530	}
		2531
		2532	=item $ref = $ob->ref
		2533
		2534	Creates and returns a persistent reference to an object that can be stored as a string.
		2535
		2536	=item $ob = cf::object::deref ($refstring)
		2537
		2538	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2539	even if the object actually exists. May block.
		2540
		2541	=cut
		2542
		2543	sub deref {
		2544	my ($ref) = @_;
		2545
		2546	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2547	my ($uuid, $name) = ($1, $2);
		2548	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2549	or return;
		2550	$pl->ob->uuid eq $uuid
		2551	or return;
		2552
		2553	$pl->ob
		2554	} else {
		2555	warn "$ref: cannot resolve object reference\n";
		2556	undef
		2557	}
1609	}	2558	}
1610		2559
1611	package cf;	2560	package cf;
1612		2561
1613	=back	2562	=back
1614
1615		2563
1616	=head3 cf::object::player	2564	=head3 cf::object::player
1617		2565
1618	=over 4	2566	=over 4
1619		2567
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2570	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2571	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2572	dialogue with the given NPC character.
1625		2573
1626	=cut	2574	=cut
		2575
		2576	our $SAY_CHANNEL = {
		2577	id => "say",
		2578	title => "Map",
		2579	reply => "say ",
		2580	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2581	};
		2582
		2583	our $CHAT_CHANNEL = {
		2584	id => "chat",
		2585	title => "Chat",
		2586	reply => "chat ",
		2587	tooltip => "Player chat and shouts, global to the server.",
		2588	};
1627		2589
1628	# rough implementation of a future "reply" method that works	2590	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2591	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2592	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2593	sub cf::object::player::reply($$$;$) {
…		…
1633		2595
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2596	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2597
1636	if ($self->{record_replies}) {	2598	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2599	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2600
1638	} else {	2601	} else {
		2602	my $pl = $self->contr;
		2603
		2604	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2605	my $dialog = $pl->{npc_dialog};
		2606	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2607
		2608	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2609	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2610	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2611	}
1641	}	2612	}
		2613	}
		2614
		2615	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2616
		2617	=cut
		2618
		2619	sub cf::object::send_msg {
		2620	my $pl = shift->contr
		2621	or return;
		2622	$pl->send_msg (@_);
1642	}	2623	}
1643		2624
1644	=item $player_object->may ("access")	2625	=item $player_object->may ("access")
1645		2626
1646	Returns wether the given player is authorized to access resource "access"	2627	Returns wether the given player is authorized to access resource "access"
…		…
1659		2640
1660	=item $player_object->enter_link	2641	=item $player_object->enter_link
1661		2642
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2643	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2644
1664	The player should be reaosnably safe there for short amounts of time. You	2645	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2646	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2647	though, as the player cannot control the character while it is on the link
		2648	map.
		2649
		2650	Will never block.
1666		2651
1667	=item $player_object->leave_link ($map, $x, $y)	2652	=item $player_object->leave_link ($map, $x, $y)
1668		2653
1669	Moves the player out of the specila link map onto the given map. If the	2654	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2655	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2656	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2657	fails, to the emergency map position.
1673		2658
1674	Might block.	2659	Might block.
1675		2660
1676	=cut	2661	=cut
		2662
		2663	sub link_map {
		2664	unless ($LINK_MAP) {
		2665	$LINK_MAP = cf::map::find "{link}"
		2666	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2667	$LINK_MAP->load;
		2668	}
		2669
		2670	$LINK_MAP
		2671	}
1677		2672
1678	sub cf::object::player::enter_link {	2673	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2674	my ($self) = @_;
1680		2675
1681	$self->deactivate_recursive;	2676	$self->deactivate_recursive;
1682		2677
1683	return if $self->map == $LINK_MAP;	2678	++$self->{_link_recursion};
		2679
		2680	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2681
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2682	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2683	if $self->map && $self->map->{path} ne "{link}";
1687		2684
1688	$self->enter_map ($LINK_MAP, 20, 20);	2685	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1689	}	2686	}
1690		2687
1691	sub cf::object::player::leave_link {	2688	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2689	my ($self, $map, $x, $y) = @_;
		2690
		2691	return unless $self->contr->active;
1693		2692
1694	my $link_pos = delete $self->{_link_pos};	2693	my $link_pos = delete $self->{_link_pos};
1695		2694
1696	unless ($map) {	2695	unless ($map) {
1697	# restore original map position	2696	# restore original map position
…		…
1708	($x, $y) = (-1, -1)	2707	($x, $y) = (-1, -1)
1709	unless (defined $x) && (defined $y);	2708	unless (defined $x) && (defined $y);
1710		2709
1711	# use -1 or undef as default coordinates, not 0, 0	2710	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2711	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2712	if $x <= 0 && $y <= 0;
1714		2713
1715	$map->load;	2714	$map->load;
		2715	$map->load_neighbours;
1716		2716
1717	return unless $self->contr->active;	2717	return unless $self->contr->active;
		2718
		2719	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2720	if ($self->enter_map ($map, $x, $y)) {
		2721	# entering was successful
		2722	delete $self->{_link_recursion};
		2723	# only activate afterwards, to support waiting in hooks
1718	$self->activate_recursive;	2724	$self->activate_recursive;
1719	$self->enter_map ($map, $x, $y);
1720	}
1721
1722	cf::player->attach (
1723	on_logout => sub {
1724	my ($pl) = @_;
1725
1726	# abort map switching before logout
1727	if ($pl->ob->{_link_pos}) {
1728	cf::sync_job {
1729	$pl->ob->leave_link
1730	};
1731	}
1732	},	2725	}
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2726
1736	# try to abort aborted map switching on player login :)	2727	}
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753		2728
1754	=item $player_object->goto ($path, $x, $y)	2729	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1755		2730
		2731	Moves the player to the given map-path and coordinates by first freezing
		2732	her, loading and preparing them map, calling the provided $check callback
		2733	that has to return the map if sucecssful, and then unfreezes the player on
		2734	the new (success) or old (failed) map position. In either case, $done will
		2735	be called at the end of this process.
		2736
		2737	Note that $check will be called with a potentially non-loaded map, so if
		2738	it needs a loaded map it has to call C<< ->load >>.
		2739
1756	=cut	2740	=cut
		2741
		2742	our $GOTOGEN;
1757		2743
1758	sub cf::object::player::goto {	2744	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2745	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2746
1761	$path = new cf::path $path;	2747	if ($self->{_link_recursion} >= $MAX_LINKS) {
1762	$path ne "/" or Carp::cluck ("oy");#d#	2748	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2749	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2750	($path, $x, $y) = @$EMERGENCY_POSITION;
		2751	}
		2752
		2753	# do generation counting so two concurrent goto's will be executed in-order
		2754	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2755
1764	$self->enter_link;	2756	$self->enter_link;
1765		2757
1766	(async {	2758	(async {
1767	my $map = cf::map::find $path->as_string;	2759	$Coro::current->{desc} = "player::goto $path $x $y";
		2760
		2761	# *tag paths override both path and x|y
		2762	if ($path =~ /^\*(.*)$/) {
		2763	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2764	my $ob = $obs[rand @obs];
		2765
		2766	# see if we actually can go there
		2767	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2768	$ob = $obs[rand @obs];
		2769	} else {
		2770	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2771	}
		2772	# else put us there anyways for now #d#
		2773
		2774	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2775	} else {
		2776	($path, $x, $y) = (undef, undef, undef);
		2777	}
		2778	}
		2779
		2780	my $map = eval {
		2781	my $map = defined $path ? cf::map::find $path : undef;
		2782
		2783	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2784	$map = $map->customise_for ($self);
1769		2785	$map = $check->($map, $x, $y, $self) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2786	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2787	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2788	}
1774		2789
		2790	$map
		2791	};
		2792
		2793	if ($@) {
		2794	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2795	LOG llevError | logBacktrace, Carp::longmess $@;
		2796	}
		2797
		2798	if ($gen == $self->{_goto_generation}) {
		2799	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2800	$self->leave_link ($map, $x, $y);
		2801	}
		2802
		2803	$done->($self) if $done;
1776	})->prio (1);	2804	})->prio (1);
1777	}	2805	}
1778		2806
1779	=item $player_object->enter_exit ($exit_object)	2807	=item $player_object->enter_exit ($exit_object)
1780		2808
…		…
1782		2810
1783	sub parse_random_map_params {	2811	sub parse_random_map_params {
1784	my ($spec) = @_;	2812	my ($spec) = @_;
1785		2813
1786	my $rmp = { # defaults	2814	my $rmp = { # defaults
1787	xsize => 10,	2815	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2816	ysize => (cf::rndm 15, 40),
		2817	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2818	#layout => string,
1789	};	2819	};
1790		2820
1791	for (split /\n/, $spec) {	2821	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2822	my ($k, $v) = split /\s+/, $_, 2;
1793		2823
…		…
1805	# that depends on the exit object	2835	# that depends on the exit object
1806		2836
1807	my $rmp = parse_random_map_params $exit->msg;	2837	my $rmp = parse_random_map_params $exit->msg;
1808		2838
1809	if ($exit->map) {	2839	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2840	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2841	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2842	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2843	$rmp->{origin_y} = $exit->y;
		2844
		2845	$exit->map->touch;
1814	}	2846	}
1815		2847
1816	$rmp->{random_seed} ||= $exit->random_seed;	2848	$rmp->{random_seed} ||= $exit->random_seed;
1817		2849
1818	my $data = cf::to_json $rmp;	2850	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1819	my $md5 = Digest::MD5::md5_hex $data;	2851	my $md5 = Digest::MD5::md5_hex $data;
		2852	my $meta = "$RANDOMDIR/$md5.meta";
1820		2853
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2854	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2855	aio_write $fh, 0, (length $data), $data, 0;
		2856	undef $fh;
		2857	aio_rename "$meta~", $meta;
1823		2858
		2859	my $slaying = "?random/$md5";
		2860
		2861	if ($exit->valid) {
1824	$exit->slaying ("?random/$md5");	2862	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2863	$exit->msg (undef);
		2864	}
1826	}	2865	}
1827	}	2866	}
1828		2867
1829	sub cf::object::player::enter_exit {	2868	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2869	my ($self, $exit) = @_;
…		…
1832	return unless $self->type == cf::PLAYER;	2871	return unless $self->type == cf::PLAYER;
1833		2872
1834	$self->enter_link;	2873	$self->enter_link;
1835		2874
1836	(async {	2875	(async {
1837	$self->deactivate_recursive; # just to be sure	2876	$Coro::current->{desc} = "enter_exit";
		2877
1838	unless (eval {	2878	unless (eval {
		2879	$self->deactivate_recursive; # just to be sure
		2880
		2881	# random map handling
		2882	{
		2883	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2884
1839	prepare_random_map $exit	2885	prepare_random_map $exit
1840	if $exit->slaying eq "/!";	2886	if $exit->slaying eq "/!";
		2887	}
1841		2888
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2889	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2890	my $x = $exit->stats->hp;
		2891	my $y = $exit->stats->sp;
1844		2892
		2893	$self->goto ($map, $x, $y);
		2894
		2895	# if exit is damned, update players death & WoR home-position
		2896	$self->contr->savebed ($map, $x, $y)
		2897	if $exit->flag (cf::FLAG_DAMNED);
		2898
1845	1;	2899	1
1846	}) {	2900	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2901	$self->message ("Something went wrong deep within the deliantra server. "
1848	. "I'll try to bring you back to the map you were before. "	2902	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2903	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2904	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2905
1852	warn "ERROR in enter_exit: $@";	2906	error "ERROR in enter_exit: $@";
1853	$self->leave_link;	2907	$self->leave_link;
1854	}	2908	}
1855	})->prio (1);	2909	})->prio (1);
1856	}	2910	}
1857		2911
…		…
1868		2922
1869	sub cf::client::send_drawinfo {	2923	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2924	my ($self, $text, $flags) = @_;
1871		2925
1872	utf8::encode $text;	2926	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2927	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2928	}
1875		2929
		2930	=item $client->send_big_packet ($pkt)
		2931
		2932	Like C<send_packet>, but tries to compress large packets, and fragments
		2933	them as required.
		2934
		2935	=cut
		2936
		2937	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2938
		2939	sub cf::client::send_big_packet {
		2940	my ($self, $pkt) = @_;
		2941
		2942	# try lzf for large packets
		2943	$pkt = "lzf " . Compress::LZF::compress $pkt
		2944	if 1024 <= length $pkt and $self->{can_lzf};
		2945
		2946	# split very large packets
		2947	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2948	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2949	$pkt = "frag";
		2950	}
		2951
		2952	$self->send_packet ($pkt);
		2953	}
		2954
		2955	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2956
		2957	Send a drawinfo or msg packet to the client, formatting the msg for the
		2958	client if neccessary. C<$type> should be a string identifying the type of
		2959	the message, with C<log> being the default. If C<$color> is negative, suppress
		2960	the message unless the client supports the msg packet.
		2961
		2962	=cut
		2963
		2964	# non-persistent channels (usually the info channel)
		2965	our %CHANNEL = (
		2966	"c/motd" => {
		2967	id => "infobox",
		2968	title => "MOTD",
		2969	reply => undef,
		2970	tooltip => "The message of the day",
		2971	},
		2972	"c/identify" => {
		2973	id => "infobox",
		2974	title => "Identify",
		2975	reply => undef,
		2976	tooltip => "Items recently identified",
		2977	},
		2978	"c/examine" => {
		2979	id => "infobox",
		2980	title => "Examine",
		2981	reply => undef,
		2982	tooltip => "Signs and other items you examined",
		2983	},
		2984	"c/shopinfo" => {
		2985	id => "infobox",
		2986	title => "Shop Info",
		2987	reply => undef,
		2988	tooltip => "What your bargaining skill tells you about the shop",
		2989	},
		2990	"c/book" => {
		2991	id => "infobox",
		2992	title => "Book",
		2993	reply => undef,
		2994	tooltip => "The contents of a note or book",
		2995	},
		2996	"c/lookat" => {
		2997	id => "infobox",
		2998	title => "Look",
		2999	reply => undef,
		3000	tooltip => "What you saw there",
		3001	},
		3002	"c/who" => {
		3003	id => "infobox",
		3004	title => "Players",
		3005	reply => undef,
		3006	tooltip => "Shows players who are currently online",
		3007	},
		3008	"c/body" => {
		3009	id => "infobox",
		3010	title => "Body Parts",
		3011	reply => undef,
		3012	tooltip => "Shows which body parts you posess and are available",
		3013	},
		3014	"c/statistics" => {
		3015	id => "infobox",
		3016	title => "Statistics",
		3017	reply => undef,
		3018	tooltip => "Shows your primary statistics",
		3019	},
		3020	"c/skills" => {
		3021	id => "infobox",
		3022	title => "Skills",
		3023	reply => undef,
		3024	tooltip => "Shows your experience per skill and item power",
		3025	},
		3026	"c/shopitems" => {
		3027	id => "infobox",
		3028	title => "Shop Items",
		3029	reply => undef,
		3030	tooltip => "Shows the items currently for sale in this shop",
		3031	},
		3032	"c/resistances" => {
		3033	id => "infobox",
		3034	title => "Resistances",
		3035	reply => undef,
		3036	tooltip => "Shows your resistances",
		3037	},
		3038	"c/pets" => {
		3039	id => "infobox",
		3040	title => "Pets",
		3041	reply => undef,
		3042	tooltip => "Shows information abotu your pets/a specific pet",
		3043	},
		3044	"c/perceiveself" => {
		3045	id => "infobox",
		3046	title => "Perceive Self",
		3047	reply => undef,
		3048	tooltip => "You gained detailed knowledge about yourself",
		3049	},
		3050	"c/uptime" => {
		3051	id => "infobox",
		3052	title => "Uptime",
		3053	reply => undef,
		3054	tooltip => "How long the server has been running since last restart",
		3055	},
		3056	"c/mapinfo" => {
		3057	id => "infobox",
		3058	title => "Map Info",
		3059	reply => undef,
		3060	tooltip => "Information related to the maps",
		3061	},
		3062	"c/party" => {
		3063	id => "party",
		3064	title => "Party",
		3065	reply => "gsay ",
		3066	tooltip => "Messages and chat related to your party",
		3067	},
		3068	"c/death" => {
		3069	id => "death",
		3070	title => "Death",
		3071	reply => undef,
		3072	tooltip => "Reason for and more info about your most recent death",
		3073	},
		3074	"c/say" => $SAY_CHANNEL,
		3075	"c/chat" => $CHAT_CHANNEL,
		3076	);
		3077
		3078	sub cf::client::send_msg {
		3079	my ($self, $channel, $msg, $color, @extra) = @_;
		3080
		3081	$msg = $self->pl->expand_cfpod ($msg)
		3082	unless $color & cf::NDI_VERBATIM;
		3083
		3084	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3085
		3086	# check predefined channels, for the benefit of C
		3087	if ($CHANNEL{$channel}) {
		3088	$channel = $CHANNEL{$channel};
		3089
		3090	$self->ext_msg (channel_info => $channel);
		3091	$channel = $channel->{id};
		3092
		3093	} elsif (ref $channel) {
		3094	# send meta info to client, if not yet sent
		3095	unless (exists $self->{channel}{$channel->{id}}) {
		3096	$self->{channel}{$channel->{id}} = $channel;
		3097	$self->ext_msg (channel_info => $channel);
		3098	}
		3099
		3100	$channel = $channel->{id};
		3101	}
		3102
		3103	return unless @extra || length $msg;
		3104
		3105	# default colour, mask it out
		3106	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3107	if $color & cf::NDI_DEF;
		3108
		3109	my $pkt = "msg "
		3110	. $self->{json_coder}->encode (
		3111	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3112	);
		3113
		3114	$self->send_big_packet ($pkt);
		3115	}
		3116
		3117	=item $client->ext_msg ($type, @msg)
		3118
		3119	Sends an ext event to the client.
		3120
		3121	=cut
		3122
		3123	sub cf::client::ext_msg($$@) {
		3124	my ($self, $type, @msg) = @_;
		3125
		3126	if ($self->extcmd == 2) {
		3127	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3128	} elsif ($self->extcmd == 1) { # TODO: remove
		3129	push @msg, msgtype => "event_$type";
		3130	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3131	}
		3132	}
		3133
		3134	=item $client->ext_reply ($msgid, @msg)
		3135
		3136	Sends an ext reply to the client.
		3137
		3138	=cut
		3139
		3140	sub cf::client::ext_reply($$@) {
		3141	my ($self, $id, @msg) = @_;
		3142
		3143	if ($self->extcmd == 2) {
		3144	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3145	} elsif ($self->extcmd == 1) {
		3146	#TODO: version 1, remove
		3147	unshift @msg, msgtype => "reply", msgid => $id;
		3148	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3149	}
		3150	}
1876		3151
1877	=item $success = $client->query ($flags, "text", \&cb)	3152	=item $success = $client->query ($flags, "text", \&cb)
1878		3153
1879	Queues a query to the client, calling the given callback with	3154	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3155	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3156	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		3157
1883	Queries can fail, so check the return code. Or don't, as queries will become	3158	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	3159	become reliable at some point in the future.
1885		3160
1886	=cut	3161	=cut
1887		3162
1888	sub cf::client::query {	3163	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	3164	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	3172	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3173	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		3174
1900	$self->send_packet ($self->{query_queue}[0][0])	3175	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	3176	if @{ $self->{query_queue} } == 1;
		3177
		3178	1
1902	}	3179	}
1903		3180
1904	cf::client->attach (	3181	cf::client->attach (
		3182	on_connect => sub {
		3183	my ($ns) = @_;
		3184
		3185	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3186	},
1905	on_reply => sub {	3187	on_reply => sub {
1906	my ($ns, $msg) = @_;	3188	my ($ns, $msg) = @_;
1907		3189
1908	# this weird shuffling is so that direct followup queries	3190	# this weird shuffling is so that direct followup queries
1909	# get handled first	3191	# get handled first
1910	my $queue = delete $ns->{query_queue}	3192	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	3193	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		3194
1913	(shift @$queue)->[1]->($msg);	3195	(shift @$queue)->[1]->($msg);
		3196	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		3197
1915	push @{ $ns->{query_queue} }, @$queue;	3198	push @{ $ns->{query_queue} }, @$queue;
1916		3199
1917	if (@{ $ns->{query_queue} } == @$queue) {	3200	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	3201	if (@$queue) {
…		…
1920	} else {	3203	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3204	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	3205	}
1923	}	3206	}
1924	},	3207	},
		3208	on_exticmd => sub {
		3209	my ($ns, $buf) = @_;
		3210
		3211	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3212
		3213	if (ref $msg) {
		3214	my ($type, $reply, @payload) =
		3215	"ARRAY" eq ref $msg
		3216	? @$msg
		3217	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3218
		3219	my @reply;
		3220
		3221	if (my $cb = $EXTICMD{$type}) {
		3222	@reply = $cb->($ns, @payload);
		3223	}
		3224
		3225	$ns->ext_reply ($reply, @reply)
		3226	if $reply;
		3227
		3228	} else {
		3229	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3230	}
		3231
		3232	cf::override;
		3233	},
1925	);	3234	);
1926		3235
1927	=item $client->async (\&cb)	3236	=item $client->async (\&cb)
1928		3237
1929	Create a new coroutine, running the specified callback. The coroutine will	3238	Create a new coroutine, running the specified callback. The coroutine will
…		…
1945		3254
1946	$coro	3255	$coro
1947	}	3256	}
1948		3257
1949	cf::client->attach (	3258	cf::client->attach (
1950	on_destroy => sub {	3259	on_client_destroy => sub {
1951	my ($ns) = @_;	3260	my ($ns) = @_;
1952		3261
1953	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3262	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1954	},	3263	},
1955	);	3264	);
…		…
1970	our $safe = new Safe "safe";	3279	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	3280	our $safe_hole = new Safe::Hole;
1972		3281
1973	$SIG{FPE} = 'IGNORE';	3282	$SIG{FPE} = 'IGNORE';
1974		3283
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3284	$safe->permit_only (Opcode::opset qw(
		3285	:base_core :base_mem :base_orig :base_math :base_loop
		3286	grepstart grepwhile mapstart mapwhile
		3287	sort time
		3288	));
1976		3289
1977	# here we export the classes and methods available to script code	3290	# here we export the classes and methods available to script code
1978		3291
1979	=pod	3292	=pod
1980		3293
1981	The following fucntions and emthods are available within a safe environment:	3294	The following functions and methods are available within a safe environment:
1982		3295
1983	cf::object contr pay_amount pay_player map	3296	cf::object
		3297	contr pay_amount pay_player map x y force_find force_add destroy
		3298	insert remove name archname title slaying race decrease split
		3299	value
		3300
1984	cf::object::player player	3301	cf::object::player
1985	cf::player peaceful	3302	player
1986	cf::map trigger	3303
		3304	cf::player
		3305	peaceful
		3306
		3307	cf::map
		3308	trigger
1987		3309
1988	=cut	3310	=cut
1989		3311
1990	for (	3312	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	3313	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3314	insert remove inv nrof name archname title slaying race
		3315	decrease split destroy change_exp value msg lore send_msg)],
1992	["cf::object::player" => qw(player)],	3316	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	3317	["cf::player" => qw(peaceful send_msg)],
1994	["cf::map" => qw(trigger)],	3318	["cf::map" => qw(trigger)],
1995	) {	3319	) {
1996	no strict 'refs';
1997	my ($pkg, @funs) = @$_;	3320	my ($pkg, @funs) = @$_;
1998	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3321	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1999	for @funs;	3322	for @funs;
2000	}	3323	}
2001		3324
…		…
2016		3339
2017	my $qcode = $code;	3340	my $qcode = $code;
2018	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3341	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2019	$qcode =~ s/\n/\\n/g;	3342	$qcode =~ s/\n/\\n/g;
2020		3343
		3344	%vars = (_dummy => 0) unless %vars;
		3345
		3346	my @res;
2021	local $_;	3347	local $_;
2022	local @safe::cf::_safe_eval_args = values %vars;
2023		3348
2024	my $eval =	3349	my $eval =
2025	"do {\n"	3350	"do {\n"
2026	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3351	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2027	. "#line 0 \"{$qcode}\"\n"	3352	. "#line 0 \"{$qcode}\"\n"
2028	. $code	3353	. $code
2029	. "\n}"	3354	. "\n}"
2030	;	3355	;
2031		3356
		3357	if ($CFG{safe_eval}) {
2032	sub_generation_inc;	3358	sub_generation_inc;
		3359	local @safe::cf::_safe_eval_args = values %vars;
2033	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3360	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2034	sub_generation_inc;	3361	sub_generation_inc;
		3362	} else {
		3363	local @cf::_safe_eval_args = values %vars;
		3364	@res = wantarray ? eval eval : scalar eval $eval;
		3365	}
2035		3366
2036	if ($@) {	3367	if ($@) {
2037	warn "$@";	3368	warn "$@",
2038	warn "while executing safe code '$code'\n";	3369	"while executing safe code '$code'\n",
2039	warn "with arguments " . (join " ", %vars) . "\n";	3370	"with arguments " . (join " ", %vars) . "\n";
2040	}	3371	}
2041		3372
2042	wantarray ? @res : $res[0]	3373	wantarray ? @res : $res[0]
2043	}	3374	}
2044		3375
…		…
2058	=cut	3389	=cut
2059		3390
2060	sub register_script_function {	3391	sub register_script_function {
2061	my ($fun, $cb) = @_;	3392	my ($fun, $cb) = @_;
2062		3393
2063	no strict 'refs';	3394	$fun = "safe::$fun" if $CFG{safe_eval};
2064	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3395	*$fun = $safe_hole->wrap ($cb);
2065	}	3396	}
2066		3397
2067	=back	3398	=back
2068		3399
2069	=cut	3400	=cut
2070		3401
2071	#############################################################################	3402	#############################################################################
		3403	# the server's init and main functions
2072		3404
2073	=head2 EXTENSION DATABASE SUPPORT	3405	sub load_facedata($) {
		3406	my ($path) = @_;
2074		3407
2075	Crossfire maintains a very simple database for extension use. It can	3408	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	3409	# for this (global event?)
2077	excludes objects.	3410	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		3411
2079	The parameter C<$family> should best start with the name of the extension	3412	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		3413
2082	=over 4	3414	trace "loading facedata from $path\n";
2083		3415
2084	=item $hashref = cf::db_get $family	3416	0 < aio_load $path, my $facedata
		3417	or die "$path: $!";
2085		3418
2086	Return a hashref for use by the extension C<$family>, which can be	3419	$facedata = Coro::Storable::thaw $facedata;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		3420
2090	=item $value = cf::db_get $family => $key	3421	$facedata->{version} == 2
		3422	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		3423
2092	Returns a single value from the database	3424	# patch in the exptable
2093		3425	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2094	=item cf::db_put $family => $hashref	3426	$facedata->{resource}{"res/exp_table"} = {
2095		3427	type => FT_RSRC,
2096	Stores the given family hashref into the database. Updates are delayed, if	3428	data => $exp_table,
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3429	hash => (Digest::MD5::md5 $exp_table),
2098
2099	=item cf::db_put $family => $key => $value
2100
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111
2112	=cut
2113
2114	our $DB;
2115
2116	{
2117	my $path = cf::localdir . "/database.pst";
2118
2119	sub db_load() {
2120	$DB = stat $path ? Storable::retrieve $path : { };
2121	}
2122
2123	my $pid;
2124
2125	sub db_save() {
2126	waitpid $pid, 0 if $pid;
2127	if (0 == ($pid = fork)) {
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	3430	};
		3431	cf::cede_to_tick;
2145		3432
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3433	{
		3434	my $faces = $facedata->{faceinfo};
2150		3435
2151	sub db_get($;$) {	3436	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3437	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		3438
2157	sub db_put($$;$) {	3439	cf::face::set_visibility $idx, $info->{visibility};
2158	if (@_ >= 3) {	3440	cf::face::set_magicmap $idx, $info->{magicmap};
2159	$DB->{$_[0]}{$_[1]} = $_[2];	3441	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2160	} else {	3442	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		3443
2166	cf::global->attach (	3444	cf::cede_to_tick;
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	3445	}
2171	);
2172	}
2173		3446
2174	#############################################################################	3447	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3448	next unless $info->{smooth};
2176		3449
2177	sub cfg_load {	3450	my $idx = cf::face::find $face
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3451	or next;
2179	or return;
2180		3452
2181	local $/;	3453	if (my $smooth = cf::face::find $info->{smooth}) {
2182	*CFG = YAML::Syck::Load <$fh>;	3454	cf::face::set_smooth $idx, $smooth;
		3455	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3456	} else {
		3457	error "smooth face '$info->{smooth}' not found for face '$face'";
		3458	}
2183		3459
		3460	cf::cede_to_tick;
		3461	}
		3462	}
		3463
		3464	{
		3465	my $anims = $facedata->{animinfo};
		3466
		3467	while (my ($anim, $info) = each %$anims) {
		3468	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3469	cf::cede_to_tick;
		3470	}
		3471
		3472	cf::anim::invalidate_all; # d'oh
		3473	}
		3474
		3475	{
		3476	my $res = $facedata->{resource};
		3477
		3478	while (my ($name, $info) = each %$res) {
		3479	if (defined $info->{type}) {
		3480	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3481
		3482	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3483	cf::face::set_type $idx, $info->{type};
		3484	} else {
		3485	$RESOURCE{$name} = $info; # unused
		3486	}
		3487
		3488	cf::cede_to_tick;
		3489	}
		3490	}
		3491
		3492	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3493
		3494	1
		3495	}
		3496
		3497	register_exticmd fx_want => sub {
		3498	my ($ns, $want) = @_;
		3499
		3500	while (my ($k, $v) = each %$want) {
		3501	$ns->fx_want ($k, $v);
		3502	}
		3503	};
		3504
		3505	sub load_resource_file($) {
		3506	my $guard = lock_acquire "load_resource_file";
		3507
		3508	my $status = load_resource_file_ $_[0];
		3509	get_slot 0.1, 100;
		3510	cf::arch::commit_load;
		3511
		3512	$status
		3513	}
		3514
		3515	sub reload_regions {
		3516	# HACK to clear player env face cache, we need some signal framework
		3517	# for this (global event?)
		3518	%ext::player_env::MUSIC_FACE_CACHE = ();
		3519
		3520	load_resource_file "$MAPDIR/regions"
		3521	or die "unable to load regions file\n";
		3522
		3523	for (cf::region::list) {
		3524	$_->{match} = qr/$_->{match}/
		3525	if exists $_->{match};
		3526	}
		3527	}
		3528
		3529	sub reload_facedata {
		3530	load_facedata "$DATADIR/facedata"
		3531	or die "unable to load facedata\n";
		3532	}
		3533
		3534	sub reload_archetypes {
		3535	load_resource_file "$DATADIR/archetypes"
		3536	or die "unable to load archetypes\n";
		3537	}
		3538
		3539	sub reload_treasures {
		3540	load_resource_file "$DATADIR/treasures"
		3541	or die "unable to load treasurelists\n";
		3542	}
		3543
		3544	sub reload_sound {
		3545	trace "loading sound config from $DATADIR/sound\n";
		3546
		3547	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3548	or die "$DATADIR/sound $!";
		3549
		3550	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3551
		3552	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3553	my $sound = $soundconf->{compat}[$_]
		3554	or next;
		3555
		3556	my $face = cf::face::find "sound/$sound->[1]";
		3557	cf::sound::set $sound->[0] => $face;
		3558	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3559	}
		3560
		3561	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3562	my $face = cf::face::find "sound/$v";
		3563	cf::sound::set $k => $face;
		3564	}
		3565	}
		3566
		3567	sub reload_resources {
		3568	trace "reloading resource files...\n";
		3569
		3570	reload_exp_table;
		3571	reload_materials;
		3572	reload_facedata;
		3573	reload_sound;
		3574	reload_archetypes;
		3575	reload_regions;
		3576	reload_treasures;
		3577
		3578	trace "finished reloading resource files\n";
		3579	}
		3580
		3581	sub reload_config {
		3582	trace "reloading config file...\n";
		3583
		3584	0 < aio_load "$CONFDIR/config", my $config
		3585	or die "$CONFDIR/config: $!";
		3586
		3587	utf8::decode $config;
		3588	*CFG = yaml_load $config;
		3589
2184	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3590	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2185		3591
2186	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3592	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2187	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3593	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2188		3594
2189	if (exists $CFG{mlockall}) {	3595	if (exists $CFG{mlockall}) {
…		…
2193	};	3599	};
2194	warn $@ if $@;	3600	warn $@ if $@;
2195	}	3601	}
2196	}	3602	}
2197		3603
		3604	sub pidfile() {
		3605	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3606	or die "$PIDFILE: $!";
		3607	flock $fh, &Fcntl::LOCK_EX
		3608	or die "$PIDFILE: flock: $!";
		3609	$fh
		3610	}
		3611
		3612	# make sure only one server instance is running at any one time
		3613	sub atomic {
		3614	my $fh = pidfile;
		3615
		3616	my $pid = <$fh>;
		3617	kill 9, $pid if $pid > 0;
		3618
		3619	seek $fh, 0, 0;
		3620	print $fh $$;
		3621	}
		3622
		3623	sub main_loop {
		3624	trace "EV::loop starting\n";
		3625	if (1) {
		3626	EV::loop;
		3627	}
		3628	trace "EV::loop returned\n";
		3629	goto &main_loop unless $REALLY_UNLOOP;
		3630	}
		3631
2198	sub main {	3632	sub main {
		3633	cf::init_globals; # initialise logging
		3634
		3635	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3636	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3637	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3638	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3639
		3640	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3641
2199	# we must not ever block the main coroutine	3642	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3643	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3644	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2202	async { Event::one_event };	3645	(async {
		3646	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3647	EV::loop EV::LOOP_ONESHOT;
		3648	})->prio (Coro::PRIO_MAX);
2203	};	3649	};
2204		3650
2205	cfg_load;	3651	evthread_start IO::AIO::poll_fileno;
2206	db_load;	3652
		3653	cf::sync_job {
		3654	cf::incloader::init ();
		3655
		3656	cf::init_anim;
		3657	cf::init_attackmess;
		3658	cf::init_dynamic;
		3659
		3660	cf::load_settings;
		3661
		3662	reload_resources;
		3663	reload_config;
		3664	db_init;
		3665
		3666	cf::init_uuid;
		3667	cf::init_signals;
		3668	cf::init_skills;
		3669
		3670	cf::init_beforeplay;
		3671
		3672	atomic;
		3673
2207	load_extensions;	3674	load_extensions;
2208	Event::loop;	3675
		3676	utime time, time, $RUNTIMEFILE;
		3677
		3678	# no (long-running) fork's whatsoever before this point(!)
		3679	use POSIX ();
		3680	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3681
		3682	cf::_post_init 0;
		3683	};
		3684
		3685	cf::object::thawer::errors_are_fatal 0;
		3686	info "parse errors in files are no longer fatal from this point on.\n";
		3687
		3688	my $free_main; $free_main = EV::idle sub {
		3689	undef $free_main;
		3690	undef &main; # free gobs of memory :)
		3691	};
		3692
		3693	goto &main_loop;
2209	}	3694	}
2210		3695
2211	#############################################################################	3696	#############################################################################
2212	# initialisation	3697	# initialisation and cleanup
2213		3698
		3699	# install some emergency cleanup handlers
		3700	BEGIN {
		3701	our %SIGWATCHER = ();
		3702	for my $signal (qw(INT HUP TERM)) {
		3703	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3704	cf::cleanup "SIG$signal";
		3705	};
		3706	}
		3707	}
		3708
		3709	sub write_runtime_sync {
		3710	my $t0 = AE::time;
		3711
		3712	# first touch the runtime file to show we are still running:
		3713	# the fsync below can take a very very long time.
		3714
		3715	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3716
		3717	my $guard = cf::lock_acquire "write_runtime";
		3718
		3719	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3720	or return;
		3721
		3722	my $value = $cf::RUNTIME + 90 + 10;
		3723	# 10 is the runtime save interval, for a monotonic clock
		3724	# 60 allows for the watchdog to kill the server.
		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	# touch it again to show we are up-to-date
		3734	aio_utime $fh, undef, undef;
		3735
		3736	close $fh
		3737	or return;
		3738
		3739	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3740	and return;
		3741
		3742	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3743
		3744	1
		3745	}
		3746
		3747	our $uuid_lock;
		3748	our $uuid_skip;
		3749
		3750	sub write_uuid_sync($) {
		3751	$uuid_skip ||= $_[0];
		3752
		3753	return if $uuid_lock;
		3754	local $uuid_lock = 1;
		3755
		3756	my $uuid = "$LOCALDIR/uuid";
		3757
		3758	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3759	or return;
		3760
		3761	my $value = uuid_seq uuid_cur;
		3762
		3763	unless ($value) {
		3764	info "cowardly refusing to write zero uuid value!\n";
		3765	return;
		3766	}
		3767
		3768	my $value = uuid_str $value + $uuid_skip;
		3769	$uuid_skip = 0;
		3770
		3771	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3772	and return;
		3773
		3774	# always fsync - this file is important
		3775	aio_fsync $fh
		3776	and return;
		3777
		3778	close $fh
		3779	or return;
		3780
		3781	aio_rename "$uuid~", $uuid
		3782	and return;
		3783
		3784	trace "uuid file written ($value).\n";
		3785
		3786	1
		3787
		3788	}
		3789
		3790	sub write_uuid($$) {
		3791	my ($skip, $sync) = @_;
		3792
		3793	$sync ? write_uuid_sync $skip
		3794	: async { write_uuid_sync $skip };
		3795	}
		3796
		3797	sub emergency_save() {
		3798	my $freeze_guard = cf::freeze_mainloop;
		3799
		3800	info "emergency_perl_save: enter\n";
		3801
		3802	# this is a trade-off: we want to be very quick here, so
		3803	# save all maps without fsync, and later call a global sync
		3804	# (which in turn might be very very slow)
		3805	local $USE_FSYNC = 0;
		3806
		3807	cf::sync_job {
		3808	cf::write_runtime_sync; # external watchdog should not bark
		3809
		3810	# use a peculiar iteration method to avoid tripping on perl
		3811	# refcount bugs in for. also avoids problems with players
		3812	# and maps saved/destroyed asynchronously.
		3813	info "emergency_perl_save: begin player save\n";
		3814	for my $login (keys %cf::PLAYER) {
		3815	my $pl = $cf::PLAYER{$login} or next;
		3816	$pl->valid or next;
		3817	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3818	$pl->save;
		3819	}
		3820	info "emergency_perl_save: end player save\n";
		3821
		3822	cf::write_runtime_sync; # external watchdog should not bark
		3823
		3824	info "emergency_perl_save: begin map save\n";
		3825	for my $path (keys %cf::MAP) {
		3826	my $map = $cf::MAP{$path} or next;
		3827	$map->valid or next;
		3828	$map->save;
		3829	}
		3830	info "emergency_perl_save: end map save\n";
		3831
		3832	cf::write_runtime_sync; # external watchdog should not bark
		3833
		3834	info "emergency_perl_save: begin database checkpoint\n";
		3835	BDB::db_env_txn_checkpoint $DB_ENV;
		3836	info "emergency_perl_save: end database checkpoint\n";
		3837
		3838	info "emergency_perl_save: begin write uuid\n";
		3839	write_uuid_sync 1;
		3840	info "emergency_perl_save: end write uuid\n";
		3841
		3842	cf::write_runtime_sync; # external watchdog should not bark
		3843
		3844	trace "emergency_perl_save: syncing database to disk";
		3845	BDB::db_env_txn_checkpoint $DB_ENV;
		3846
		3847	info "emergency_perl_save: starting sync\n";
		3848	IO::AIO::aio_sync sub {
		3849	info "emergency_perl_save: finished sync\n";
		3850	};
		3851
		3852	cf::write_runtime_sync; # external watchdog should not bark
		3853
		3854	trace "emergency_perl_save: flushing outstanding aio requests";
		3855	while (IO::AIO::nreqs || BDB::nreqs) {
		3856	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3857	}
		3858
		3859	cf::write_runtime_sync; # external watchdog should not bark
		3860	};
		3861
		3862	info "emergency_perl_save: leave\n";
		3863	}
		3864
		3865	sub post_cleanup {
		3866	my ($make_core) = @_;
		3867
		3868	IO::AIO::flush;
		3869
		3870	error Carp::longmess "post_cleanup backtrace"
		3871	if $make_core;
		3872
		3873	my $fh = pidfile;
		3874	unlink $PIDFILE if <$fh> == $$;
		3875	}
		3876
		3877	# a safer delete_package, copied from Symbol
		3878	sub clear_package($) {
		3879	my $pkg = shift;
		3880
		3881	# expand to full symbol table name if needed
		3882	unless ($pkg =~ /^main::.*::$/) {
		3883	$pkg = "main$pkg" if $pkg =~ /^::/;
		3884	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3885	$pkg .= '::' unless $pkg =~ /::$/;
		3886	}
		3887
		3888	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3889	my $stem_symtab = *{$stem}{HASH};
		3890
		3891	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3892	or return;
		3893
		3894	# clear all symbols
		3895	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3896	for my $name (keys %$leaf_symtab) {
		3897	_gv_clear *{"$pkg$name"};
		3898	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3899	}
		3900	}
		3901
2214	sub reload() {	3902	sub do_reload_perl() {
2215	# can/must only be called in main	3903	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3904	unless (in_main) {
2217	warn "can only reload from main coroutine\n";	3905	error "can only reload from main coroutine";
2218	return;	3906	return;
2219	}	3907	}
2220		3908
2221	warn "reloading...";	3909	return if $RELOAD++;
2222		3910
2223	my $guard = freeze_mainloop;	3911	my $t1 = AE::time;
		3912
		3913	while ($RELOAD) {
		3914	cf::get_slot 0.1, -1, "reload_perl";
		3915	info "perl_reload: reloading...";
		3916
		3917	trace "perl_reload: entering sync_job";
		3918
		3919	cf::sync_job {
2224	cf::emergency_save;	3920	#cf::emergency_save;
2225		3921
2226	eval {	3922	trace "perl_reload: cancelling all extension coros";
2227	# if anything goes wrong in here, we should simply crash as we already saved
2228
2229	# cancel all watchers
2230	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}
2233
2234	# cancel all extension coros
2235	$_->cancel for values %EXT_CORO;	3923	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3924	%EXT_CORO = ();
2237		3925
2238	# unload all extensions	3926	trace "perl_reload: removing commands";
2239	for (@exts) {	3927	%COMMAND = ();
2240	warn "unloading <$_>";
2241	unload_extension $_;
2242	}
2243		3928
2244	# unload all modules loaded from $LIBDIR	3929	trace "perl_reload: removing ext/exti commands";
2245	while (my ($k, $v) = each %INC) {	3930	%EXTCMD = ();
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3931	%EXTICMD = ();
2247		3932
2248	warn "removing <$k>";	3933	trace "perl_reload: unloading/nuking all extensions";
2249	delete $INC{$k};	3934	for my $pkg (@EXTS) {
		3935	trace "... unloading $pkg";
2250		3936
2251	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;
2253
2254	if (my $cb = $k->can ("unload_module")) {	3937	if (my $cb = $pkg->can ("unload")) {
		3938	eval {
2255	$cb->();	3939	$cb->($pkg);
		3940	1
		3941	} or error "$pkg unloaded, but with errors: $@";
		3942	}
		3943
		3944	trace "... clearing $pkg";
		3945	clear_package $pkg;
2256	}	3946	}
2257		3947
2258	Symbol::delete_package $k;	3948	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3949	while (my ($k, $v) = each %INC) {
		3950	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3951
		3952	trace "... unloading $k";
		3953	delete $INC{$k};
		3954
		3955	$k =~ s/\.pm$//;
		3956	$k =~ s/\//::/g;
		3957
		3958	if (my $cb = $k->can ("unload_module")) {
		3959	$cb->();
		3960	}
		3961
		3962	clear_package $k;
2259	}	3963	}
2260		3964
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	3965	trace "perl_reload: getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3966	clear_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3967	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3968
2269	# remove register_script_function callbacks	3969	trace "perl_reload: unloading cf.pm \"a bit\"";
2270	# TODO
2271
2272	# unload cf.pm "a bit"
2273	delete $INC{"cf.pm"};	3970	delete $INC{"cf.pm"};
		3971	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2274		3972
2275	# don't, removes xs symbols, too,	3973	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3974	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3975	#clear_package __PACKAGE__;
2278		3976
2279	# reload cf.pm	3977	info "perl_reload: unload completed, starting to reload now";
2280	warn "reloading cf.pm";	3978
		3979	trace "perl_reload: reloading cf.pm";
2281	require cf;	3980	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3981	cf::_connect_to_perl_1;
2283		3982
2284	# load config and database again	3983	trace "perl_reload: loading config and database again";
2285	cf::cfg_load;	3984	cf::reload_config;
2286	cf::db_load;
2287		3985
2288	# load extensions	3986	trace "perl_reload: loading extensions";
2289	warn "load extensions";
2290	cf::load_extensions;	3987	cf::load_extensions;
2291		3988
2292	# reattach attachments to objects	3989	if ($REATTACH_ON_RELOAD) {
2293	warn "reattach";	3990	trace "perl_reload: reattaching attachments to objects/players";
2294	_global_reattach;	3991	_global_reattach; # objects, sockets
		3992	trace "perl_reload: reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3993	reattach $_ for values %MAP;
		3994	trace "perl_reload: reattaching attachments to players";
		3995	reattach $_ for values %PLAYER;
		3996	}
		3997
		3998	cf::_post_init 1;
		3999
		4000	trace "perl_reload: leaving sync_job";
		4001
		4002	1
		4003	} or do {
		4004	error $@;
		4005	cf::cleanup "perl_reload: error, exiting.";
		4006	};
		4007
		4008	--$RELOAD;
		4009	}
		4010
		4011	$t1 = AE::time - $t1;
		4012	info "perl_reload: completed in ${t1}s\n";
		4013	};
		4014
		4015	our $RELOAD_WATCHER; # used only during reload
		4016
		4017	sub reload_perl() {
		4018	# doing reload synchronously and two reloads happen back-to-back,
		4019	# coro crashes during coro_state_free->destroy here.
		4020
		4021	$RELOAD_WATCHER ||= cf::async {
		4022	Coro::AIO::aio_wait cache_extensions;
		4023
		4024	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4025	do_reload_perl;
		4026	undef $RELOAD_WATCHER;
		4027	};
2296	};	4028	};
2297
2298	if ($@) {
2299	warn $@;
2300	warn "error while reloading, exiting.";
2301	exit 1;
2302	}
2303
2304	warn "reloaded successfully";
2305	};
2306
2307	#############################################################################
2308
2309	unless ($LINK_MAP) {
2310	$LINK_MAP = cf::map::new;
2311
2312	$LINK_MAP->width (41);
2313	$LINK_MAP->height (41);
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,
2322	cb => sub {
2323	$_[0]->w->cancel;
2324
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});
2343
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	4029	}
2349
2350	register "<global>", __PACKAGE__;
2351		4030
2352	register_command "reload" => sub {	4031	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	4032	my ($who, $arg) = @_;
2354		4033
2355	if ($who->flag (FLAG_WIZ)) {	4034	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	4035	$who->message ("reloading server.");
		4036	async {
		4037	$Coro::current->{desc} = "perl_reload";
		4038	reload_perl;
		4039	};
2359	}	4040	}
2360	};	4041	};
2361		4042
2362	unshift @INC, $LIBDIR;	4043	#############################################################################
2363		4044
2364	$TICK_WATCHER = Event->timer (	4045	my $bug_warning = 0;
2365	reentrant => 0,	4046
2366	prio => 0,	4047	our @WAIT_FOR_TICK;
2367	at => $NEXT_TICK || $TICK,	4048	our @WAIT_FOR_TICK_BEGIN;
2368	data => WF_AUTOCANCEL,	4049
2369	cb => sub {	4050	sub wait_for_tick() {
		4051	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4052
		4053	my $signal = new Coro::Signal;
		4054	push @WAIT_FOR_TICK, $signal;
		4055	$signal->wait;
		4056	}
		4057
		4058	sub wait_for_tick_begin() {
		4059	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4060
		4061	my $signal = new Coro::Signal;
		4062	push @WAIT_FOR_TICK_BEGIN, $signal;
		4063	$signal->wait;
		4064	}
		4065
		4066	sub tick {
		4067	if ($Coro::current != $Coro::main) {
		4068	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4069	unless ++$bug_warning > 10;
		4070	return;
		4071	}
		4072
2370	cf::server_tick; # one server iteration	4073	cf::server_tick; # one server iteration
2371	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;
2373		4074
2374	# if we are delayed by four ticks or more, skip them all	4075	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2376		4076
2377	$TICK_WATCHER->at ($NEXT_TICK);	4077	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2378	$TICK_WATCHER->start;	4078	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2379	},	4079	Coro::async_pool {
2380	);	4080	$Coro::current->{desc} = "runtime saver";
2381
2382	IO::AIO::max_poll_time $TICK * 0.2;
2383
2384	Event->io (
2385	fd => IO::AIO::poll_fileno,
2386	poll => 'r',
2387	prio => 5,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,
2394	after => 0,
2395	interval => 10,
2396	cb => sub {
2397	(Coro::unblock_sub {
2398	write_runtime	4081	write_runtime_sync
2399	or warn "ERROR: unable to write runtime file: $!";	4082	or error "ERROR: unable to write runtime file: $!";
2400	})->();	4083	};
2401	},	4084	}
2402	);	4085
		4086	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4087	$sig->send;
		4088	}
		4089	while (my $sig = shift @WAIT_FOR_TICK) {
		4090	$sig->send;
		4091	}
		4092
		4093	$LOAD = ($NOW - $TICK_START) / $TICK;
		4094	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4095
		4096	if (0) {
		4097	if ($NEXT_TICK) {
		4098	my $jitter = $TICK_START - $NEXT_TICK;
		4099	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4100	debug "jitter $JITTER\n";#d#
		4101	}
		4102	}
		4103	}
		4104
		4105	{
		4106	# configure BDB
		4107
		4108	BDB::min_parallel 16;
		4109	BDB::max_poll_reqs $TICK * 0.1;
		4110	$AnyEvent::BDB::WATCHER->priority (1);
		4111
		4112	unless ($DB_ENV) {
		4113	$DB_ENV = BDB::db_env_create;
		4114	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4115	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4116	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4117	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4118	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4119
		4120	cf::sync_job {
		4121	eval {
		4122	BDB::db_env_open
		4123	$DB_ENV,
		4124	$BDBDIR,
		4125	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4126	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4127	0666;
		4128
		4129	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4130	};
		4131
		4132	cf::cleanup "db_env_open(db): $@" if $@;
		4133	};
		4134	}
		4135
		4136	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4137	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4138	};
		4139	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4140	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4141	};
		4142	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4143	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4144	};
		4145	}
		4146
		4147	{
		4148	# configure IO::AIO
		4149
		4150	IO::AIO::min_parallel 8;
		4151	IO::AIO::max_poll_time $TICK * 0.1;
		4152	undef $AnyEvent::AIO::WATCHER;
		4153	}
		4154
		4155	my $_log_backtrace;
		4156
		4157	sub _log_backtrace {
		4158	my ($msg, @addr) = @_;
		4159
		4160	$msg =~ s/\n//;
		4161
		4162	# limit the # of concurrent backtraces
		4163	if ($_log_backtrace < 2) {
		4164	++$_log_backtrace;
		4165	my $perl_bt = Carp::longmess $msg;
		4166	async {
		4167	$Coro::current->{desc} = "abt $msg";
		4168
		4169	my @bt = fork_call {
		4170	@addr = map { sprintf "%x", $_ } @addr;
		4171	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4172	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4173	or die "addr2line: $!";
		4174
		4175	my @funcs;
		4176	my @res = <$fh>;
		4177	chomp for @res;
		4178	while (@res) {
		4179	my ($func, $line) = splice @res, 0, 2, ();
		4180	push @funcs, "[$func] $line";
		4181	}
		4182
		4183	@funcs
		4184	};
		4185
		4186	LOG llevInfo, "[ABT] $perl_bt\n";
		4187	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4188	LOG llevInfo, "[ABT] $_\n" for @bt;
		4189	--$_log_backtrace;
		4190	};
		4191	} else {
		4192	LOG llevInfo, "[ABT] $msg\n";
		4193	LOG llevInfo, "[ABT] [suppressed]\n";
		4194	}
		4195	}
		4196
		4197	# load additional modules
		4198	require "cf/$_.pm" for @EXTRA_MODULES;
		4199	cf::_connect_to_perl_2;
2403		4200
2404	END { cf::emergency_save }	4201	END { cf::emergency_save }
2405		4202
2406	1	4203	1
2407		4204

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