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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC vs.
Revision 1.559 by root, Sat Feb 26 12:50:27 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		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;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
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
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	123	our $NEXT_TICK;
46	our $NOW;	124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
47		132
48	our %CFG;	133	our %CFG;
49		134
50	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
52		138
53	our %PLAYER; # all users	139	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	140	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	141	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		142
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	143	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
61		155
62	binmode STDOUT;	156	binmode STDOUT;
63	binmode STDERR;	157	binmode STDERR;
64		158
65	# read virtual server time, if available	159	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
67	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
68	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
69	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
70	}	164	}
71		165
72	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
73	mkdir cf::localdir . "/" . cf::playerdir;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		167
78	# a special map that is always available	168	mkdir $_
79	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		170
80	our $EMERGENCY_POSITION;	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
81		189
82	#############################################################################	190	#############################################################################
83		191
84	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
85		193
…		…
92	=item $cf::RUNTIME	200	=item $cf::RUNTIME
93		201
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	202	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	203	every server tick.
96		204
97	=item $cf::LIBDIR	205	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		206	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		207	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		208
99	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	210	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		211	unique-items directory, player file directory, random maps directory and
		212	database environment.
101		213
102	=item $cf::NOW	214	=item $cf::NOW
103		215
104	The time of the last (current) server tick.	216	The time of the last (current) server tick.
105		217
106	=item $cf::TICK	218	=item $cf::TICK
107		219
108	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
109		221
		222	=item $cf::LOADAVG
		223
		224	The current CPU load on the server (alpha-smoothed), as a value between 0
		225	(none) and 1 (overloaded), indicating how much time is spent on processing
		226	objects per tick. Healthy values are < 0.5.
		227
		228	=item $cf::LOAD
		229
		230	The raw value load value from the last tick.
		231
110	=item %cf::CFG	232	=item %cf::CFG
111		233
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	235	from wherever your confdir points to.
114		236
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	237	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		238
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	240	returns directly I<after> the tick processing (and consequently, can only wake one thread
119	processing has been done. Call C<< ->wait >> on them to maximise the	241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
121		259
122	=back	260	=back
123		261
124	=cut	262	=cut
125		263
126	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
127	*CORE::GLOBAL::warn = sub {	265	sub warn (@) { LOG llevWarn , join "", @_ }
		266	sub info (@) { LOG llevInfo , join "", @_ }
		267	sub debug(@) { LOG llevDebug, join "", @_ }
		268	sub trace(@) { LOG llevTrace, join "", @_ }
		269
		270	$Coro::State::WARNHOOK = sub {
128	my $msg = join "", @_;	271	my $msg = join "", @_;
129	utf8::encode $msg;
130		272
131	$msg .= "\n"	273	$msg .= "\n"
132	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
133		275
		276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		277
134	LOG llevError, $msg;	278	LOG llevWarn, $msg;
135	};	279	};
136	}	280
		281	$Coro::State::DIEHOOK = sub {
		282	return unless $^S eq 0; # "eq", not "=="
		283
		284	error Carp::longmess $_[0];
		285
		286	if (in_main) {#d#
		287	error "DIEHOOK called in main context, Coro bug?\n";#d#
		288	return;#d#
		289	}#d#
		290
		291	# kill coroutine otherwise
		292	Coro::terminate
		293	};
137		294
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	299	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		300	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	301	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		302
145	# we bless all objects into (empty) derived classes to force a method lookup	303	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	304	# within the Safe compartment.
147	for my $pkg (qw(	305	for my $pkg (qw(
148	cf::global cf::attachable	306	cf::global cf::attachable
149	cf::object cf::object::player	307	cf::object cf::object::player
150	cf::client cf::player	308	cf::client cf::player
151	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
152	cf::map cf::party cf::region	311	cf::party cf::region
153	)) {	312	)) {
154	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	314	}
157		315
158	$Event::DIED = sub {	316	$EV::DIED = sub {
159	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
160	};	318	};
161		319
162	my %ext_pkg;	320	#############################################################################
163	my @exts;
164	my @hook;
165		321
166	=head2 UTILITY FUNCTIONS	322	=head2 UTILITY FUNCTIONS
167		323
168	=over 4	324	=over 4
169		325
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	344	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	345	$d
190	} || "[unable to dump $_[0]: '$@']";	346	} || "[unable to dump $_[0]: '$@']";
191	}	347	}
192		348
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	349	=item $ref = cf::decode_json $json
196		350
197	Converts a JSON string into the corresponding perl data structure.	351	Converts a JSON string into the corresponding perl data structure.
198		352
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	353	=item $json = cf::encode_json $ref
207		354
208	Converts a perl data structure into its JSON representation.	355	Converts a perl data structure into its JSON representation.
209		356
210	=cut	357	=cut
211		358
212	sub to_json($) {	359	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	360
214	JSON::Syck::Dump $_[0]	361	sub encode_json($) { $json_coder->encode ($_[0]) }
		362	sub decode_json($) { $json_coder->decode ($_[0]) }
		363
		364	=item $ref = cf::yaml_load $scalar
		365
		366	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		367
		368	=cut
		369
		370	sub fork_call(&@);
		371
		372	sub yaml_load($) {
		373	fork_call { YAML::XS::Load $_[0] } @_
		374	}
		375
		376	=item cf::post_init { BLOCK }
		377
		378	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		379	but I<before> the server starts ticking again.
		380
		381	The codeblock will have a single boolean argument to indicate whether this
		382	is a reload or not.
		383
		384	=cut
		385
		386	sub post_init(&) {
		387	push @POST_INIT, shift;
		388	}
		389
		390	sub _post_init {
		391	trace "running post_init jobs";
		392
		393	# run them in parallel...
		394
		395	my @join;
		396
		397	while () {
		398	push @join, map &Coro::async ($_, 0), @POST_INIT;
		399	@POST_INIT = ();
		400
		401	@join or last;
		402
		403	(pop @join)->join;
		404	}
215	}	405	}
216		406
217	=item cf::lock_wait $string	407	=item cf::lock_wait $string
218		408
219	Wait until the given lock is available. See cf::lock_acquire.	409	Wait until the given lock is available. See cf::lock_acquire.
220		410
221	=item my $lock = cf::lock_acquire $string	411	=item my $lock = cf::lock_acquire $string
222		412
223	Wait until the given lock is available and then acquires it and returns	413	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	414	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	415	for example when the coroutine gets canceled), the lock is automatically
226	returned.	416	returned.
227		417
		418	Locks are *not* recursive, locking from the same coro twice results in a
		419	deadlocked coro.
		420
228	Lock names should begin with a unique identifier (for example, cf::map::find	421	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	422	uses map_find and cf::map::load uses map_load).
230		423
231	=cut	424	=item $locked = cf::lock_active $string
232		425
233	our %LOCK;	426	Return true if the lock is currently active, i.e. somebody has locked it.
		427
		428	=cut
		429
		430	our $LOCKS = new Coro::SemaphoreSet;
234		431
235	sub lock_wait($) {	432	sub lock_wait($) {
236	my ($key) = @_;	433	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	434	}
244		435
245	sub lock_acquire($) {	436	sub lock_acquire($) {
246	my ($key) = @_;	437	$LOCKS->guard ($_[0])
		438	}
247		439
248	# wait, to be sure we are not locked	440	sub lock_active($) {
249	lock_wait $key;	441	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	442	}
258		443
259	sub freeze_mainloop {	444	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	445	tick_inhibit_inc;
261		446
262	my $guard = Coro::guard { $TICK_WATCHER->start };	447	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	448	}
264	$guard	449
		450	=item cf::periodic $interval, $cb
		451
		452	Like EV::periodic, but randomly selects a starting point so that the actions
		453	get spread over time.
		454
		455	=cut
		456
		457	sub periodic($$) {
		458	my ($interval, $cb) = @_;
		459
		460	my $start = rand List::Util::min 180, $interval;
		461
		462	EV::periodic $start, $interval, 0, $cb
		463	}
		464
		465	=item cf::get_slot $time[, $priority[, $name]]
		466
		467	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		468	This call blocks and returns only when you have at least C<$time> seconds
		469	of cpu time till the next tick. The slot is only valid till the next cede.
		470
		471	The optional C<$name> can be used to identify the job to run. It might be
		472	used for statistical purposes and should identify the same time-class.
		473
		474	Useful for short background jobs.
		475
		476	=cut
		477
		478	our @SLOT_QUEUE;
		479	our $SLOT_QUEUE;
		480	our $SLOT_DECAY = 0.9;
		481
		482	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		483	$SLOT_QUEUE = Coro::async {
		484	$Coro::current->desc ("timeslot manager");
		485
		486	my $signal = new Coro::Signal;
		487	my $busy;
		488
		489	while () {
		490	next_job:
		491
		492	my $avail = cf::till_tick;
		493
		494	for (0 .. $#SLOT_QUEUE) {
		495	if ($SLOT_QUEUE[$_][0] <= $avail) {
		496	$busy = 0;
		497	my $job = splice @SLOT_QUEUE, $_, 1, ();
		498	$job->[2]->send;
		499	Coro::cede;
		500	goto next_job;
		501	} else {
		502	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		503	}
		504	}
		505
		506	if (@SLOT_QUEUE) {
		507	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		508	push @cf::WAIT_FOR_TICK, $signal;
		509	$signal->wait;
		510	} else {
		511	$busy = 0;
		512	Coro::schedule;
		513	}
		514	}
		515	};
		516
		517	sub get_slot($;$$) {
		518	return if tick_inhibit || $Coro::current == $Coro::main;
		519
		520	my ($time, $pri, $name) = @_;
		521
		522	$time = clamp $time, 0.01, $TICK * .6;
		523
		524	my $sig = new Coro::Signal;
		525
		526	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		527	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		528	$SLOT_QUEUE->ready;
		529	$sig->wait;
265	}	530	}
266		531
267	=item cf::async { BLOCK }	532	=item cf::async { BLOCK }
268		533
269	Currently the same as Coro::async_pool, meaning you cannot use	534	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		539
275	BEGIN { *async = \&Coro::async_pool }	540	BEGIN { *async = \&Coro::async_pool }
276		541
277	=item cf::sync_job { BLOCK }	542	=item cf::sync_job { BLOCK }
278		543
279	The design of crossfire+ requires that the main coro ($Coro::main) is	544	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	545	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	546	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		547	acceptable.
282		548
283	If it must be done, put the blocking parts into C<sync_job>. This will run	549	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	550	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	551	server will be frozen during this time, so the block should either finish
286	fast or be very important.	552	fast or be very important.
…		…
288	=cut	554	=cut
289		555
290	sub sync_job(&) {	556	sub sync_job(&) {
291	my ($job) = @_;	557	my ($job) = @_;
292		558
293	if ($Coro::current == $Coro::main) {	559	if (in_main) {
		560	my $time = AE::time;
		561
294	# this is the main coro, too bad, we have to block	562	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	563	# till the operation succeeds, freezing the server :/
296		564
297	# TODO: use suspend/resume instead	565	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	566
299	my $freeze_guard = freeze_mainloop;	567	my $freeze_guard = freeze_mainloop;
300		568
301	my $busy = 1;	569	my $busy = 1;
302	my @res;	570	my @res;
303		571
304	(async {	572	(async {
		573	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	574	@res = eval { $job->() };
306	warn $@ if $@;	575	error $@ if $@;
307	undef $busy;	576	undef $busy;
308	})->prio (Coro::PRIO_MAX);	577	})->prio (Coro::PRIO_MAX);
309		578
310	while ($busy) {	579	while ($busy) {
311	Coro::cede or Event::one_event;	580	if (Coro::nready) {
		581	Coro::cede_notself;
		582	} else {
		583	EV::loop EV::LOOP_ONESHOT;
312	}	584	}
		585	}
		586
		587	my $time = AE::time - $time;
		588
		589	$TICK_START += $time; # do not account sync jobs to server load
313		590
314	wantarray ? @res : $res[0]	591	wantarray ? @res : $res[0]
315	} else {	592	} else {
316	# we are in another coroutine, how wonderful, everything just works	593	# we are in another coroutine, how wonderful, everything just works
317		594
…		…
319	}	596	}
320	}	597	}
321		598
322	=item $coro = cf::async_ext { BLOCK }	599	=item $coro = cf::async_ext { BLOCK }
323		600
324	Like async, but this coro is automcatially being canceled when the	601	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	602	extension calling this is being unloaded.
326		603
327	=cut	604	=cut
328		605
329	sub async_ext(&) {	606	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	614	$EXT_CORO{$coro+0} = $coro;
338		615
339	$coro	616	$coro
340	}	617	}
341		618
342	sub write_runtime {	619	=item fork_call { }, @args
343	my $runtime = cf::localdir . "/runtime";
344		620
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	621	Executes the given code block with the given arguments in a seperate
346	or return;	622	process, returning the results. Everything must be serialisable with
		623	Coro::Storable. May, of course, block. Note that the executed sub may
		624	never block itself or use any form of event handling.
347		625
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	626	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		627
352	aio_fsync $fh	628	sub post_fork {
353	and return;	629	reset_signals;
		630	}
354		631
355	close $fh	632	sub fork_call(&@) {
356	or return;	633	my ($cb, @args) = @_;
357		634
358	aio_rename "$runtime~", $runtime	635	# we seemingly have to make a local copy of the whole thing,
359	and return;	636	# otherwise perl prematurely frees the stuff :/
		637	# TODO: investigate and fix (likely this will be rather laborious)
360		638
		639	my @res = Coro::Util::fork_eval {
		640	cf::post_fork;
		641	&$cb
		642	} @args;
		643
		644	wantarray ? @res : $res[-1]
		645	}
		646
		647	sub objinfo {
361	1	648	(
		649	"counter value" => cf::object::object_count,
		650	"objects created" => cf::object::create_count,
		651	"objects destroyed" => cf::object::destroy_count,
		652	"freelist size" => cf::object::free_count,
		653	"allocated objects" => cf::object::objects_size,
		654	"active objects" => cf::object::actives_size,
		655	)
		656	}
		657
		658	=item $coin = coin_from_name $name
		659
		660	=cut
		661
		662	our %coin_alias = (
		663	"silver" => "silvercoin",
		664	"silvercoin" => "silvercoin",
		665	"silvercoins" => "silvercoin",
		666	"gold" => "goldcoin",
		667	"goldcoin" => "goldcoin",
		668	"goldcoins" => "goldcoin",
		669	"platinum" => "platinacoin",
		670	"platinumcoin" => "platinacoin",
		671	"platinumcoins" => "platinacoin",
		672	"platina" => "platinacoin",
		673	"platinacoin" => "platinacoin",
		674	"platinacoins" => "platinacoin",
		675	"royalty" => "royalty",
		676	"royalties" => "royalty",
		677	);
		678
		679	sub coin_from_name($) {
		680	$coin_alias{$_[0]}
		681	? cf::arch::find $coin_alias{$_[0]}
		682	: undef
		683	}
		684
		685	=item $value = cf::db_get $family => $key
		686
		687	Returns a single value from the environment database.
		688
		689	=item cf::db_put $family => $key => $value
		690
		691	Stores the given C<$value> in the family. It can currently store binary
		692	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		693
		694	=item $db = cf::db_table "name"
		695
		696	Create and/or open a new database table. The string must not be "db" and must be unique
		697	within each server.
		698
		699	=cut
		700
		701	sub db_table($) {
		702	cf::error "db_get called from main context"
		703	if $Coro::current == $Coro::main;
		704
		705	my ($name) = @_;
		706	my $db = BDB::db_create $DB_ENV;
		707
		708	eval {
		709	$db->set_flags (BDB::CHKSUM);
		710
		711	utf8::encode $name;
		712	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		713	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		714	cf::cleanup "db_open(db): $!" if $!;
		715	};
		716	cf::cleanup "db_open(db): $@" if $@;
		717
		718	$db
		719	}
		720
		721	our $DB;
		722
		723	sub db_init {
		724	$DB ||= db_table "db";
		725	}
		726
		727	sub db_get($$) {
		728	my $key = "$_[0]/$_[1]";
		729
		730	cf::error "db_get called from main context"
		731	if $Coro::current == $Coro::main;
		732
		733	BDB::db_get $DB, undef, $key, my $data;
		734
		735	$! ? ()
		736	: $data
		737	}
		738
		739	sub db_put($$$) {
		740	BDB::dbreq_pri 4;
		741	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		742	}
		743
		744	=item cf::cache $id => [$paths...], $processversion => $process
		745
		746	Generic caching function that returns the value of the resource $id,
		747	caching and regenerating as required.
		748
		749	This function can block.
		750
		751	=cut
		752
		753	sub cache {
		754	my ($id, $src, $processversion, $process) = @_;
		755
		756	my $meta =
		757	join "\x00",
		758	$processversion,
		759	map {
		760	aio_stat $_
		761	and Carp::croak "$_: $!";
		762
		763	($_, (stat _)[7,9])
		764	} @$src;
		765
		766	my $dbmeta = db_get cache => "$id/meta";
		767	if ($dbmeta ne $meta) {
		768	# changed, we may need to process
		769
		770	my @data;
		771	my $md5;
		772
		773	for (0 .. $#$src) {
		774	0 <= aio_load $src->[$_], $data[$_]
		775	or Carp::croak "$src->[$_]: $!";
		776	}
		777
		778	# if processing is expensive, check
		779	# checksum first
		780	if (1) {
		781	$md5 =
		782	join "\x00",
		783	$processversion,
		784	map {
		785	cf::cede_to_tick;
		786	($src->[$_], Digest::MD5::md5_hex $data[$_])
		787	} 0.. $#$src;
		788
		789
		790	my $dbmd5 = db_get cache => "$id/md5";
		791	if ($dbmd5 eq $md5) {
		792	db_put cache => "$id/meta", $meta;
		793
		794	return db_get cache => "$id/data";
		795	}
		796	}
		797
		798	my $t1 = Time::HiRes::time;
		799	my $data = $process->(\@data);
		800	my $t2 = Time::HiRes::time;
		801
		802	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		803
		804	db_put cache => "$id/data", $data;
		805	db_put cache => "$id/md5" , $md5;
		806	db_put cache => "$id/meta", $meta;
		807
		808	return $data;
		809	}
		810
		811	db_get cache => "$id/data"
		812	}
		813
		814	=item cf::datalog type => key => value, ...
		815
		816	Log a datalog packet of the given type with the given key-value pairs.
		817
		818	=cut
		819
		820	sub datalog($@) {
		821	my ($type, %kv) = @_;
		822	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	823	}
363		824
364	=back	825	=back
365		826
366	=cut	827	=cut
367		828
368	#############################################################################	829	#############################################################################
369		830
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489
490	#############################################################################
491
492	=head2 ATTACHABLE OBJECTS	831	=head2 ATTACHABLE OBJECTS
493		832
494	Many objects in crossfire are so-called attachable objects. That means you can	833	Many objects in deliantra are so-called attachable objects. That means you can
495	attach callbacks/event handlers (a collection of which is called an "attachment")	834	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	835	to it. All such attachable objects support the following methods.
497		836
498	In the following description, CLASS can be any of C<global>, C<object>	837	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	838	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	839	Deliantra).
501		840
502	=over 4	841	=over 4
503		842
504	=item $attachable->attach ($attachment, key => $value...)	843	=item $attachable->attach ($attachment, key => $value...)
505		844
…		…
549	=item cf::CLASS::attachment $name, ...	888	=item cf::CLASS::attachment $name, ...
550		889
551	Register an attachment by C<$name> through which attachable objects of the	890	Register an attachment by C<$name> through which attachable objects of the
552	given CLASS can refer to this attachment.	891	given CLASS can refer to this attachment.
553		892
554	Some classes such as crossfire maps and objects can specify attachments	893	Some classes such as deliantra maps and objects can specify attachments
555	that are attached at load/instantiate time, thus the need for a name.	894	that are attached at load/instantiate time, thus the need for a name.
556		895
557	These calls expect any number of the following handler/hook descriptions:	896	These calls expect any number of the following handler/hook descriptions:
558		897
559	=over 4	898	=over 4
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	958	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	959	our @CB_MAP = ();
621		960
622	my %attachment;	961	my %attachment;
623		962
		963	sub cf::attachable::thawer_merge {
		964	# simply override everything except _meta
		965	local $_[0]{_meta};
		966	%{$_[0]} = %{$_[1]};
		967	}
		968
624	sub _attach_cb($$$$) {	969	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	970	my ($registry, $event, $prio, $cb) = @_;
626		971
627	use sort 'stable';	972	use sort 'stable';
628		973
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	1007	$registry = $CB_TYPE[$object_type] ||= [];
663		1008
664	} elsif ($type eq "subtype") {	1009	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	1010	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	1011	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1012	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		1013
669	} elsif ($type eq "package") {	1014	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	1015	my $pkg = shift @arg;
671		1016
672	while (my ($name, $id) = each %cb_id) {	1017	while (my ($name, $id) = each %cb_id) {
…		…
677		1022
678	} elsif (exists $cb_id{$type}) {	1023	} elsif (exists $cb_id{$type}) {
679	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1024	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
680		1025
681	} elsif (ref $type) {	1026	} elsif (ref $type) {
682	warn "attaching objects not supported, ignoring.\n";	1027	error "attaching objects not supported, ignoring.\n";
683		1028
684	} else {	1029	} else {
685	shift @arg;	1030	shift @arg;
686	warn "attach argument '$type' not supported, ignoring.\n";	1031	error "attach argument '$type' not supported, ignoring.\n";
687	}	1032	}
688	}	1033	}
689	}	1034	}
690		1035
691	sub _object_attach {	1036	sub _object_attach {
…		…
701	_attach $registry, $klass, @attach;	1046	_attach $registry, $klass, @attach;
702	}	1047	}
703		1048
704	$obj->{$name} = \%arg;	1049	$obj->{$name} = \%arg;
705	} else {	1050	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	1051	info "object uses attachment '$name' which is not available, postponing.\n";
707	}	1052	}
708		1053
709	$obj->{_attachment}{$name} = undef;	1054	$obj->{_attachment}{$name} = undef;
710	}	1055	}
711		1056
…		…
713	if (ref $_[0]) {	1058	if (ref $_[0]) {
714	_object_attach @_;	1059	_object_attach @_;
715	} else {	1060	} else {
716	_attach shift->_attach_registry, @_;	1061	_attach shift->_attach_registry, @_;
717	}	1062	}
		1063	_recalc_want;
718	};	1064	};
719		1065
720	# all those should be optimised	1066	# all those should be optimised
721	sub cf::attachable::detach {	1067	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	1068	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	1071	delete $obj->{_attachment}{$name};
726	reattach ($obj);	1072	reattach ($obj);
727	} else {	1073	} else {
728	Carp::croak "cannot, currently, detach class attachments";	1074	Carp::croak "cannot, currently, detach class attachments";
729	}	1075	}
		1076	_recalc_want;
730	};	1077	};
731		1078
732	sub cf::attachable::attached {	1079	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	1080	my ($obj, $name) = @_;
734		1081
…		…
749	";	1096	";
750	die if $@;	1097	die if $@;
751	}	1098	}
752		1099
753	our $override;	1100	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1101	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		1102
756	sub override {	1103	sub override {
757	$override = 1;	1104	$override = 1;
758	@invoke_results = ();	1105	@INVOKE_RESULTS = (@_);
759	}	1106	}
760		1107
761	sub do_invoke {	1108	sub do_invoke {
762	my $event = shift;	1109	my $event = shift;
763	my $callbacks = shift;	1110	my $callbacks = shift;
764		1111
765	@invoke_results = ();	1112	@INVOKE_RESULTS = ();
766		1113
767	local $override;	1114	local $override;
768		1115
769	for (@$callbacks) {	1116	for (@$callbacks) {
770	eval { &{$_->[1]} };	1117	eval { &{$_->[1]} };
771		1118
772	if ($@) {	1119	if ($@) {
773	warn "$@";
774	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1120	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
775	override;	1121	override;
776	}	1122	}
777		1123
778	return 1 if $override;	1124	return 1 if $override;
779	}	1125	}
780		1126
781	0	1127	0
782	}	1128	}
783		1129
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		1131
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1132	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		1133
788	Generate an object-specific event with the given arguments.	1134	Generate an object-specific event with the given arguments.
789		1135
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1136	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	1137	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	1138	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		1139
794	=back	1140	=back
795		1141
796	=cut	1142	=cut
797		1143
798	#############################################################################	1144	#############################################################################
799	# object support	1145	# object support
		1146
		1147	sub _object_equal($$);
		1148	sub _object_equal($$) {
		1149	my ($a, $b) = @_;
		1150
		1151	return 0 unless (ref $a) eq (ref $b);
		1152
		1153	if ("HASH" eq ref $a) {
		1154	my @ka = keys %$a;
		1155	my @kb = keys %$b;
		1156
		1157	return 0 if @ka != @kb;
		1158
		1159	for (0 .. $#ka) {
		1160	return 0 unless $ka[$_] eq $kb[$_];
		1161	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1162	}
		1163
		1164	} elsif ("ARRAY" eq ref $a) {
		1165
		1166	return 0 if @$a != @$b;
		1167
		1168	for (0 .. $#$a) {
		1169	return 0 unless _object_equal $a->[$_], $b->[$_];
		1170	}
		1171
		1172	} elsif ($a ne $b) {
		1173	return 0;
		1174	}
		1175
		1176	1
		1177	}
		1178
		1179	our $SLOW_MERGES;#d#
		1180	sub _can_merge {
		1181	my ($ob1, $ob2) = @_;
		1182
		1183	++$SLOW_MERGES;#d#
		1184
		1185	# we do the slow way here
		1186	return _object_equal $ob1, $ob2
		1187	}
800		1188
801	sub reattach {	1189	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1190	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1191	my ($obj) = @_;
		1192
		1193	# no longer needed after getting rid of delete_package?
		1194	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1195
805	my $registry = $obj->registry;	1196	my $registry = $obj->registry;
806		1197
807	@$registry = ();	1198	@$registry = ();
808		1199
…		…
813	for (@$attach) {	1204	for (@$attach) {
814	my ($klass, @attach) = @$_;	1205	my ($klass, @attach) = @$_;
815	_attach $registry, $klass, @attach;	1206	_attach $registry, $klass, @attach;
816	}	1207	}
817	} else {	1208	} else {
818	warn "object uses attachment '$name' that is not available, postponing.\n";	1209	info "object uses attachment '$name' that is not available, postponing.\n";
819	}	1210	}
820	}	1211	}
821	}	1212	}
822		1213
823	cf::attachable->attach (	1214	cf::attachable->attach (
824	prio => -1000000,	1215	prio => -1000000,
825	on_instantiate => sub {	1216	on_instantiate => sub {
826	my ($obj, $data) = @_;	1217	my ($obj, $data) = @_;
827		1218
828	$data = from_json $data;	1219	$data = decode_json $data;
829		1220
830	for (@$data) {	1221	for (@$data) {
831	my ($name, $args) = @$_;	1222	my ($name, $args) = @$_;
832		1223
833	$obj->attach ($name, %{$args || {} });	1224	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1240	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1241	my ($filename, $rdata, $objs) = @_;
851		1242
852	sync_job {	1243	sync_job {
853	if (length $$rdata) {	1244	if (length $$rdata) {
		1245	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1246	trace sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1247	$decname, length $$rdata, scalar @$objs
		1248	if $VERBOSE_IO;
856		1249
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1250	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1251	aio_chmod $fh, SAVE_MODE;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1252	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1253	if ($cf::USE_FSYNC) {
		1254	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
860	aio_fsync $fh;	1255	aio_fsync $fh;
		1256	}
861	close $fh;	1257	aio_close $fh;
862		1258
863	if (@$objs) {	1259	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1260	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1261	aio_chmod $fh, SAVE_MODE;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1262	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1263	aio_write $fh, 0, (length $data), $data, 0;
		1264	if ($cf::USE_FSYNC) {
		1265	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
868	aio_fsync $fh;	1266	aio_fsync $fh;
		1267	}
869	close $fh;	1268	aio_close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1269	aio_rename "$filename.pst~", "$filename.pst";
871	}	1270	}
872	} else {	1271	} else {
873	aio_unlink "$filename.pst";	1272	aio_unlink "$filename.pst";
874	}	1273	}
875		1274
876	aio_rename "$filename~", $filename;	1275	aio_rename "$filename~", $filename;
		1276
		1277	$filename =~ s%/[^/]+$%%;
		1278	aio_pathsync $filename if $cf::USE_FSYNC;
877	} else {	1279	} else {
878	warn "FATAL: $filename~: $!\n";	1280	error "unable to save objects: $filename~: $!\n";
879	}	1281	}
880	} else {	1282	} else {
881	aio_unlink $filename;	1283	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1284	aio_unlink "$filename.pst";
883	}	1285	}
884	}	1286	};
885	}	1287	}
886		1288
887	sub object_freezer_as_string {	1289	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1290	my ($rdata, $objs) = @_;
889		1291
…		…
901	or return;	1303	or return;
902		1304
903	unless (aio_stat "$filename.pst") {	1305	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1306	(aio_load "$filename.pst", $av) >= 0
905	or return;	1307	or return;
		1308
906	$av = eval { (Storable::thaw $av)->{objs} };	1309	my $st = eval { Coro::Storable::thaw $av };
		1310	$av = $st->{objs};
907	}	1311	}
908		1312
		1313	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1314	trace sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1315	$decname, length $data, scalar @{$av || []}
		1316	if $VERBOSE_IO;
		1317
911	return ($data, $av);	1318	($data, $av)
912	}	1319	}
		1320
		1321	=head2 COMMAND CALLBACKS
		1322
		1323	=over 4
		1324
		1325	=cut
913		1326
914	#############################################################################	1327	#############################################################################
915	# command handling &c	1328	# command handling &c
916		1329
917	=item cf::register_command $name => \&callback($ob,$args);	1330	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1343	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1344	}
932		1345
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1346	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1347
935	Register a callbackf ro execution when the client sends an extcmd packet.	1348	Register a callback for execution when the client sends an (synchronous)
		1349	extcmd packet. Ext commands will be processed in the order they are
		1350	received by the server, like other user commands. The first argument is
		1351	the logged-in player. Ext commands can only be processed after a player
		1352	has logged in successfully.
936		1353
937	If the callback returns something, it is sent back as if reply was being	1354	If the callback returns something, it is sent back as if reply was being
938	called.	1355	called.
939		1356
		1357	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1358
		1359	Register a callback for execution when the client sends an (asynchronous)
		1360	exticmd packet. Exti commands are processed by the server as soon as they
		1361	are received, i.e. out of order w.r.t. other commands. The first argument
		1362	is a client socket. Exti commands can be received anytime, even before
		1363	log-in.
		1364
		1365	If the callback returns something, it is sent back as if reply was being
		1366	called.
		1367
940	=cut	1368	=cut
941		1369
942	sub register_extcmd {	1370	sub register_extcmd {
943	my ($name, $cb) = @_;	1371	my ($name, $cb) = @_;
944		1372
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1373	$EXTCMD{$name} = $cb;
949	}	1374	}
		1375
		1376	sub register_exticmd {
		1377	my ($name, $cb) = @_;
		1378
		1379	$EXTICMD{$name} = $cb;
		1380	}
		1381
		1382	use File::Glob ();
950		1383
951	cf::player->attach (	1384	cf::player->attach (
952	on_command => sub {	1385	on_unknown_command => sub {
953	my ($pl, $name, $params) = @_;	1386	my ($pl, $name, $params) = @_;
954		1387
955	my $cb = $COMMAND{$name}	1388	my $cb = $COMMAND{$name}
956	or return;	1389	or return;
957		1390
…		…
962	cf::override;	1395	cf::override;
963	},	1396	},
964	on_extcmd => sub {	1397	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1398	my ($pl, $buf) = @_;
966		1399
967	my $msg = eval { from_json $buf };	1400	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1401
969	if (ref $msg) {	1402	if (ref $msg) {
		1403	my ($type, $reply, @payload) =
		1404	"ARRAY" eq ref $msg
		1405	? @$msg
		1406	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1407
		1408	my @reply;
		1409
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1410	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1411	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1412	}
		1413
		1414	$pl->ext_reply ($reply, @reply)
		1415	if $reply;
		1416
975	} else {	1417	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1418	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1419	}
978		1420
979	cf::override;	1421	cf::override;
980	},	1422	},
981	);	1423	);
982		1424
983	sub register {	1425	# "readahead" all extensions
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	1426	sub cache_extensions {
990	my ($path) = @_;	1427	my $grp = IO::AIO::aio_group;
991		1428
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1429	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
993	my $base = $1;	1430	for (grep /\.ext$/, @{$_[0]}) {
994	my $pkg = $1;	1431	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}	1432	}
1042	}	1433	};
1043		1434
1044	# remove extcmds	1435	$grp
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	1436	}
1058		1437
1059	sub load_extensions {	1438	sub load_extensions {
		1439	info "loading extensions...";
		1440
		1441	cf::sync_job {
		1442	my %todo;
		1443
1060	for my $ext (<$LIBDIR/*.ext>) {	1444	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1445	next unless -r $path;
1062	eval {	1446
1063	load_extension $ext;	1447	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1448	my $base = $1;
		1449	my $pkg = $1;
		1450	$pkg =~ s/[^[:word:]]/_/g;
		1451	$pkg = "ext::$pkg";
		1452
		1453	open my $fh, "<:utf8", $path
		1454	or die "$path: $!";
		1455
		1456	my $source = do { local $/; <$fh> };
		1457
		1458	my %ext = (
		1459	path => $path,
		1460	base => $base,
		1461	pkg => $pkg,
		1462	);
		1463
		1464	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1465	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1466
		1467	$ext{source} =
		1468	"package $pkg; use common::sense;\n"
		1469	. "#line 1 \"$path\"\n{\n"
		1470	. $source
		1471	. "\n};\n1";
		1472
		1473	$todo{$base} = \%ext;
		1474	}
		1475
		1476	my $pass = 0;
		1477	my %done;
		1478	while (%todo) {
		1479	my $progress;
		1480
		1481	++$pass;
		1482
		1483	ext:
		1484	while (my ($k, $v) = each %todo) {
		1485	for (split /,\s*/, $v->{meta}{depends}) {
		1486	next ext
		1487	unless exists $done{$_};
		1488	}
		1489
		1490	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1491
		1492	my $active = eval $v->{source};
		1493
		1494	if (length $@) {
		1495	error "$v->{path}: $@\n";
		1496
		1497	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1498	if exists $v->{meta}{mandatory};
		1499
		1500	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1501	delete $todo{$k};
		1502	} else {
		1503	$done{$k} = delete $todo{$k};
		1504	push @EXTS, $v->{pkg};
		1505	$progress = 1;
		1506
		1507	info "$v->{base}: extension inactive.\n"
		1508	unless $active;
		1509	}
1064	1	1510	}
1065	} or warn "$ext not loaded: $@";	1511
		1512	unless ($progress) {
		1513	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1514
		1515	while (my ($k, $v) = each %todo) {
		1516	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1517	if exists $v->{meta}{mandatory};
		1518	}
		1519	}
		1520	}
1066	}	1521	};
1067	}	1522	}
1068		1523
1069	#############################################################################	1524	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1525
1072	*cf::mapsupport::on_clean = sub {	1526	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1527
1085	=head2 CORE EXTENSIONS	1528	=head2 CORE EXTENSIONS
1086		1529
1087	Functions and methods that extend core crossfire objects.	1530	Functions and methods that extend core deliantra objects.
1088		1531
1089	=cut	1532	=cut
1090		1533
1091	package cf::player;	1534	package cf::player;
1092		1535
…		…
1094		1537
1095	=head3 cf::player	1538	=head3 cf::player
1096		1539
1097	=over 4	1540	=over 4
1098		1541
		1542	=item cf::player::num_playing
		1543
		1544	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1545
		1546	=cut
		1547
		1548	sub num_playing {
		1549	scalar grep
		1550	$_->ob->map
		1551	&& !$_->hidden
		1552	&& !$_->ob->flag (cf::FLAG_WIZ),
		1553	cf::player::list
		1554	}
		1555
1099	=item cf::player::find $login	1556	=item cf::player::find $login
1100		1557
1101	Returns the given player object, loading it if necessary (might block).	1558	Returns the given player object, loading it if necessary (might block).
1102		1559
1103	=cut	1560	=cut
1104		1561
1105	sub playerdir($) {	1562	sub playerdir($) {
1106	cf::localdir	1563	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1564	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1565	}
1112		1566
1113	sub path($) {	1567	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1568	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1569
1116	(playerdir $login) . "/$login.pl"	1570	(playerdir $login) . "/playerdata"
1117	}	1571	}
1118		1572
1119	sub find_active($) {	1573	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1574	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1575	and $cf::PLAYER{$_[0]}->active
…		…
1124		1578
1125	sub exists($) {	1579	sub exists($) {
1126	my ($login) = @_;	1580	my ($login) = @_;
1127		1581
1128	$cf::PLAYER{$login}	1582	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1583	or !aio_stat path $login
1130	}	1584	}
1131		1585
1132	sub find($) {	1586	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1587	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1588	my $login = $_[0];
1135		1589
1136	my $guard = cf::lock_acquire "user_find:$login";	1590	my $guard = cf::lock_acquire "user_find:$login";
1137		1591
1138	$cf::PLAYER{$_[0]} || do {	1592	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1593	# rename old playerfiles to new ones
		1594	#TODO: remove when no longer required
		1595	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1596	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1597	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1598	aio_unlink +(playerdir $login) . "/$login.pl";
		1599
		1600	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1601	or return;
		1602
		1603	my $pl = cf::player::load_pl $f
		1604	or return;
		1605
		1606	local $cf::PLAYER_LOADING{$login} = $pl;
		1607	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1608	$cf::PLAYER{$login} = $pl
1142	}	1609	}
1143	}	1610	}
1144	}	1611	}
		1612
		1613	cf::player->attach (
		1614	on_load => sub {
		1615	my ($pl, $path) = @_;
		1616
		1617	# restore slots saved in save, below
		1618	my $slots = delete $pl->{_slots};
		1619
		1620	$pl->ob->current_weapon ($slots->[0]);
		1621	$pl->combat_ob ($slots->[1]);
		1622	$pl->ranged_ob ($slots->[2]);
		1623	},
		1624	);
1145		1625
1146	sub save($) {	1626	sub save($) {
1147	my ($pl) = @_;	1627	my ($pl) = @_;
1148		1628
1149	return if $pl->{deny_save};	1629	return if $pl->{deny_save};
…		…
1154	return if $pl->{deny_save};	1634	return if $pl->{deny_save};
1155		1635
1156	aio_mkdir playerdir $pl, 0770;	1636	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1637	$pl->{last_save} = $cf::RUNTIME;
1158		1638
		1639	cf::get_slot 0.01;
		1640
		1641	# save slots, to be restored later
		1642	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1643
1159	$pl->save_pl ($path);	1644	$pl->save_pl ($path);
1160	Coro::cede;	1645	cf::cede_to_tick;
1161	}	1646	}
1162		1647
1163	sub new($) {	1648	sub new($) {
1164	my ($login) = @_;	1649	my ($login) = @_;
1165		1650
…		…
1171	$cf::PLAYER{$login} = $self;	1656	$cf::PLAYER{$login} = $self;
1172		1657
1173	$self	1658	$self
1174	}	1659	}
1175		1660
		1661	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1662
		1663	=cut
		1664
		1665	sub send_msg {
		1666	my $ns = shift->ns
		1667	or return;
		1668	$ns->send_msg (@_);
		1669	}
		1670
1176	=item $pl->quit_character	1671	=item $pl->quit_character
1177		1672
1178	Nukes the player without looking back. If logged in, the connection will	1673	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1674	be destroyed. May block for a long time.
1180		1675
1181	=cut	1676	=cut
1182		1677
1183	sub quit_character {	1678	sub quit_character {
1184	my ($pl) = @_;	1679	my ($pl) = @_;
1185		1680
		1681	my $name = $pl->ob->name;
		1682
1186	$pl->{deny_save} = 1;	1683	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1684	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1188		1685
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1686	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1190	$pl->deactivate;	1687	$pl->deactivate;
		1688
		1689	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1191	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1690	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1691	ext::highscore::check ($pl->ob);
		1692
1192	$pl->ns->destroy if $pl->ns;	1693	$pl->ns->destroy if $pl->ns;
1193		1694
1194	my $path = playerdir $pl;	1695	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1696	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1697	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1698	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1699	$pl->destroy;
		1700
		1701	my $prefix = qr<^~\Q$name\E/>;
		1702
		1703	# nuke player maps
		1704	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1705
1199	IO::AIO::aio_rmtree $temp;	1706	IO::AIO::aio_rmtree $temp;
		1707	}
		1708
		1709	=item $pl->kick
		1710
		1711	Kicks a player out of the game. This destroys the connection.
		1712
		1713	=cut
		1714
		1715	sub kick {
		1716	my ($pl, $kicker) = @_;
		1717
		1718	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1719	$pl->killer ("kicked");
		1720	$pl->ns->destroy;
1200	}	1721	}
1201		1722
1202	=item cf::player::list_logins	1723	=item cf::player::list_logins
1203		1724
1204	Returns am arrayref of all valid playernames in the system, can take a	1725	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1726	while and may block, so not sync_job-capable, ever.
1206		1727
1207	=cut	1728	=cut
1208		1729
1209	sub list_logins {	1730	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1731	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1732	or return [];
1212		1733
1213	my @logins;	1734	my @logins;
1214		1735
1215	for my $login (@$dirs) {	1736	for my $login (@$dirs) {
		1737	my $path = path $login;
		1738
		1739	# a .pst is a dead give-away for a valid player
		1740	# if no pst file found, open and chekc for blocked users
		1741	if (aio_stat "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1742	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1743	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1744	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1745	}
1219		1746
1220	utf8::decode $login;	1747	utf8::decode $login;
1221	push @logins, $login;	1748	push @logins, $login;
1222	}	1749	}
1223		1750
1224	\@logins	1751	\@logins
1225	}	1752	}
1226		1753
1227	=item $player->maps	1754	=item $player->maps
1228		1755
		1756	=item cf::player::maps $login
		1757
1229	Returns an arrayref of cf::path's of all maps that are private for this	1758	Returns an arrayref of map paths that are private for this
1230	player. May block.	1759	player. May block.
1231		1760
1232	=cut	1761	=cut
1233		1762
1234	sub maps($) {	1763	sub maps($) {
1235	my ($pl) = @_;	1764	my ($pl) = @_;
		1765
		1766	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1767
1237	my $files = aio_readdir playerdir $pl	1768	my $files = aio_readdir playerdir $pl
1238	or return;	1769	or return;
1239		1770
1240	my @paths;	1771	my @paths;
1241		1772
1242	for (@$files) {	1773	for (@$files) {
1243	utf8::decode $_;	1774	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1775	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1776	next unless /^$PATH_SEP/o;
1246		1777
1247	s/$PATH_SEP/\//g;	1778	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1779	}
1250		1780
1251	\@paths	1781	\@paths
1252	}	1782	}
1253		1783
		1784	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1785
		1786	Expand deliantra pod fragments into protocol xml.
		1787
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1788	=item $player->ext_reply ($msgid, @msg)
1255		1789
1256	Sends an ext reply to the player.	1790	Sends an ext reply to the player.
1257		1791
1258	=cut	1792	=cut
1259		1793
1260	sub ext_reply($$$%) {	1794	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1795	my ($self, $id, @msg) = @_;
1262		1796
1263	$msg{msgid} = $id;	1797	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1798	}
1267		1799
1268	package cf;	1800	=item $player->ext_msg ($type, @msg)
		1801
		1802	Sends an ext event to the client.
		1803
		1804	=cut
		1805
		1806	sub ext_msg($$@) {
		1807	my ($self, $type, @msg) = @_;
		1808
		1809	$self->ns->ext_msg ($type, @msg);
		1810	}
		1811
		1812	=head3 cf::region
		1813
		1814	=over 4
		1815
		1816	=cut
		1817
		1818	package cf::region;
		1819
		1820	=item cf::region::find_by_path $path
		1821
		1822	Tries to decuce the likely region for a map knowing only its path.
		1823
		1824	=cut
		1825
		1826	sub find_by_path($) {
		1827	my ($path) = @_;
		1828
		1829	$path =~ s/^~[^\/]*//; # skip ~login
		1830
		1831	my ($match, $specificity);
		1832
		1833	for my $region (list) {
		1834	if ($region->{match} && $path =~ $region->{match}) {
		1835	($match, $specificity) = ($region, $region->specificity)
		1836	if $region->specificity > $specificity;
		1837	}
		1838	}
		1839
		1840	$match
		1841	}
1269		1842
1270	=back	1843	=back
1271
1272		1844
1273	=head3 cf::map	1845	=head3 cf::map
1274		1846
1275	=over 4	1847	=over 4
1276		1848
…		…
1279	package cf::map;	1851	package cf::map;
1280		1852
1281	use Fcntl;	1853	use Fcntl;
1282	use Coro::AIO;	1854	use Coro::AIO;
1283		1855
		1856	use overload
		1857	'""' => \&as_string,
		1858	fallback => 1;
		1859
1284	our $MAX_RESET = 3600;	1860	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1861	our $DEFAULT_RESET = 3000;
1286		1862
1287	sub generate_random_map {	1863	sub generate_random_map {
		1864	my ($self, $rmp) = @_;
		1865
		1866	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1867
		1868	$self->_create_random_map ($rmp);
		1869	}
		1870
		1871	=item cf::map->register ($regex, $prio)
		1872
		1873	Register a handler for the map path matching the given regex at the
		1874	givne priority (higher is better, built-in handlers have priority 0, the
		1875	default).
		1876
		1877	=cut
		1878
		1879	sub register {
		1880	my (undef, $regex, $prio) = @_;
		1881	my $pkg = caller;
		1882
		1883	push @{"$pkg\::ISA"}, __PACKAGE__;
		1884
		1885	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1886	}
		1887
		1888	# also paths starting with '/'
		1889	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1890
		1891	sub thawer_merge {
		1892	my ($self, $merge) = @_;
		1893
		1894	# we have to keep some variables in memory intact
		1895	local $self->{path};
		1896	local $self->{load_path};
		1897
		1898	$self->SUPER::thawer_merge ($merge);
		1899	}
		1900
		1901	sub normalise {
1288	my ($path, $rmp) = @_;	1902	my ($path, $base) = @_;
1289		1903
1290	# mit "rum" bekleckern, nicht	1904	$path = "$path"; # make sure it's a string
1291	cf::map::_create_random_map	1905
		1906	$path =~ s/\.map$//;
		1907
		1908	# map plan:
		1909	#
		1910	# /! non-realised random map exit (special hack!)
		1911	# {... are special paths that are not being touched
		1912	# ?xxx/... are special absolute paths
		1913	# ?random/... random maps
		1914	# /... normal maps
		1915	# ~user/... per-player map of a specific user
		1916
		1917	$path =~ s/$PATH_SEP/\//go;
		1918
		1919	# treat it as relative path if it starts with
		1920	# something that looks reasonable
		1921	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1922	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1923
		1924	$base =~ s{[^/]+/?$}{};
		1925	$path = "$base/$path";
		1926	}
		1927
		1928	for ($path) {
		1929	redo if s{/\.?/}{/};
		1930	redo if s{/[^/]+/\.\./}{/};
		1931	}
		1932
1292	$path,	1933	$path
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})
1304	}	1934	}
1305		1935
1306	# and all this just because we cannot iterate over	1936	sub new_from_path {
1307	# all maps in C++...	1937	my (undef, $path, $base) = @_;
1308	sub change_all_map_light {	1938
		1939	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1940
		1941	$path = normalise $path, $base;
		1942
		1943	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1944	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1945	my $self = bless cf::map::new, $pkg;
		1946	$self->{path} = $path; $self->path ($path);
		1947	$self->init; # pass $1 etc.
		1948	return $self;
		1949	}
		1950	}
		1951
		1952	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1953	()
		1954	}
		1955
		1956	sub init {
1309	my ($change) = @_;	1957	my ($self) = @_;
1310		1958
1311	$_->change_map_light ($change)	1959	$self
1312	for grep $_->outdoor, values %cf::MAP;
1313	}	1960	}
1314		1961
		1962	sub as_string {
		1963	my ($self) = @_;
		1964
		1965	"$self->{path}"
		1966	}
		1967
		1968	# the displayed name, this is a one way mapping
		1969	sub visible_name {
		1970	&as_string
		1971	}
		1972
		1973	# the original (read-only) location
		1974	sub load_path {
		1975	my ($self) = @_;
		1976
		1977	"$MAPDIR/$self->{path}.map"
		1978	}
		1979
		1980	# the temporary/swap location
		1981	sub save_path {
		1982	my ($self) = @_;
		1983
		1984	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1985	"$TMPDIR/$path.map"
		1986	}
		1987
		1988	# the unique path, undef == no special unique path
		1989	sub uniq_path {
		1990	my ($self) = @_;
		1991
		1992	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1993	"$UNIQUEDIR/$path"
		1994	}
		1995
		1996	sub decay_objects {
		1997	my ($self) = @_;
		1998
		1999	return if $self->{deny_reset};
		2000
		2001	$self->do_decay_objects;
		2002	}
		2003
		2004	sub unlink_save {
		2005	my ($self) = @_;
		2006
		2007	utf8::encode (my $save = $self->save_path);
		2008	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2009	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2010	}
		2011
1315	sub try_load_header($) {	2012	sub load_header_from($) {
1316	my ($path) = @_;	2013	my ($self, $path) = @_;
1317		2014
1318	utf8::encode $path;	2015	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	2016	my $f = new_from_file cf::object::thawer $path
1320	or return;	2017	or return;
1321		2018
1322	my $map = cf::map::new	2019	$self->_load_header ($f)
1323	or return;	2020	or return;
1324		2021
1325	# for better error messages only, will be overwritten	2022	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	2023	$f->resolve_delayed_derefs;
1327		2024
1328	$map->load_header ($path)	2025	$self->{load_path} = $path;
		2026
		2027	1
		2028	}
		2029
		2030	sub load_header_orig {
		2031	my ($self) = @_;
		2032
		2033	$self->load_header_from ($self->load_path)
		2034	}
		2035
		2036	sub load_header_temp {
		2037	my ($self) = @_;
		2038
		2039	$self->load_header_from ($self->save_path)
		2040	}
		2041
		2042	sub prepare_temp {
		2043	my ($self) = @_;
		2044
		2045	$self->last_access ((delete $self->{last_access})
		2046	|| $cf::RUNTIME); #d#
		2047	# safety
		2048	$self->{instantiate_time} = $cf::RUNTIME
		2049	if $self->{instantiate_time} > $cf::RUNTIME;
		2050	}
		2051
		2052	sub prepare_orig {
		2053	my ($self) = @_;
		2054
		2055	$self->{load_original} = 1;
		2056	$self->{instantiate_time} = $cf::RUNTIME;
		2057	$self->last_access ($cf::RUNTIME);
		2058	$self->instantiate;
		2059	}
		2060
		2061	sub load_header {
		2062	my ($self) = @_;
		2063
		2064	if ($self->load_header_temp) {
		2065	$self->prepare_temp;
		2066	} else {
		2067	$self->load_header_orig
1329	or return;	2068	or return;
		2069	$self->prepare_orig;
		2070	}
1330		2071
1331	$map->{load_path} = $path;	2072	$self->{deny_reset} = 1
		2073	if $self->no_reset;
1332		2074
1333	$map	2075	$self->default_region (cf::region::find_by_path $self->{path})
		2076	unless $self->default_region;
		2077
		2078	1
1334	}	2079	}
1335		2080
1336	sub find;	2081	sub find;
1337	sub find {	2082	sub find {
1338	my ($path, $origin) = @_;	2083	my ($path, $origin) = @_;
1339		2084
1340	#warn "find<$path,$origin>\n";#d#	2085	cf::cede_to_tick;
1341		2086
1342	$path = new cf::path $path, $origin && $origin->path;	2087	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		2088
1345	cf::lock_wait "map_find:$key";	2089	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1346
1347	$cf::MAP{$key} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	2090	my $guard2 = cf::lock_acquire "map_find:$path";
1349		2091
1350	# do it the slow way	2092	$cf::MAP{$path} || do {
1351	my $map = try_load_header $path->save_path;	2093	my $map = new_from_path cf::map $path
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	2094	or return;
1369		2095
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	2096	$map->{last_save} = $cf::RUNTIME;
1382		2097
1383	Coro::cede;	2098	$map->load_header
		2099	or return;
1384		2100
1385	if ($map->should_reset) {	2101	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2102	# doing this can freeze the server in a sync job, obviously
		2103	#$cf::WAIT_FOR_TICK->wait;
		2104	undef $guard2;
		2105	undef $guard1;
1386	$map->reset;	2106	$map->reset;
1387	undef $guard;
1388	$map = find $path	2107	return find $path;
1389	or return;
1390	}	2108	}
1391		2109
1392	$cf::MAP{$key} = $map	2110	$cf::MAP{$path} = $map
1393	}	2111	}
1394	}	2112	}
		2113
		2114	sub pre_load { }
		2115	#sub post_load { } # XS
1395		2116
1396	sub load {	2117	sub load {
1397	my ($self) = @_;	2118	my ($self) = @_;
1398		2119
		2120	local $self->{deny_reset} = 1; # loading can take a long time
		2121
1399	my $path = $self->{path};	2122	my $path = $self->{path};
		2123
		2124	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2125	my $guard = cf::lock_acquire "map_data:$path";
1401		2126
		2127	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2128	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2129
1404	$self->in_memory (cf::MAP_LOADING);	2130	$self->in_memory (cf::MAP_LOADING);
1405		2131
1406	$self->alloc;	2132	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2133
		2134	$self->pre_load;
		2135	cf::cede_to_tick;
		2136
		2137	my $f = new_from_file cf::object::thawer $self->{load_path};
		2138	$f->skip_block;
		2139	$self->_load_objects ($f)
1408	or return;	2140	or return;
1409		2141
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2142	$self->post_load_original
1411	if delete $self->{load_original};	2143	if delete $self->{load_original};
1412		2144
1413	if (my $uniq = $path->uniq_path) {	2145	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2146	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2147	unless (aio_stat $uniq) {
		2148	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2149	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2150	$self->_load_objects ($f);
		2151	$f->resolve_delayed_derefs;
		2152	}
1418	}	2153	}
1419	}	2154	}
1420		2155
1421	Coro::cede;	2156	$f->resolve_delayed_derefs;
1422		2157
		2158	cf::cede_to_tick;
1423	# now do the right thing for maps	2159	# now do the right thing for maps
1424	$self->link_multipart_objects;	2160	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2161	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2162	unless $self->difficulty;
		2163	cf::cede_to_tick;
		2164
		2165	unless ($self->{deny_activate}) {
		2166	$self->decay_objects;
		2167	$self->fix_auto_apply;
		2168	$self->update_buttons;
		2169	cf::cede_to_tick;
1436	$self->activate;	2170	$self->activate;
1437	}	2171	}
1438		2172
1439	Coro::cede;	2173	$self->{last_save} = $cf::RUNTIME;
		2174	$self->last_access ($cf::RUNTIME);
1440		2175
1441	$self->in_memory (cf::MAP_IN_MEMORY);	2176	$self->in_memory (cf::MAP_ACTIVE);
		2177	}
		2178
		2179	$self->post_load;
		2180
		2181	1
		2182	}
		2183
		2184	# customize the map for a given player, i.e.
		2185	# return the _real_ map. used by e.g. per-player
		2186	# maps to change the path to ~playername/mappath
		2187	sub customise_for {
		2188	my ($self, $ob) = @_;
		2189
		2190	return find "~" . $ob->name . "/" . $self->{path}
		2191	if $self->per_player;
		2192
		2193	# return find "?party/" . $ob->name . "/" . $self->{path}
		2194	# if $self->per_party;
		2195
		2196	$self
1442	}	2197	}
1443		2198
1444	# find and load all maps in the 3x3 area around a map	2199	# find and load all maps in the 3x3 area around a map
1445	sub load_diag {	2200	sub load_neighbours {
1446	my ($map) = @_;	2201	my ($map) = @_;
1447		2202
1448	my @diag; # diagonal neighbours	2203	my @neigh; # diagonal neighbours
1449		2204
1450	for (0 .. 3) {	2205	for (0 .. 3) {
1451	my $neigh = $map->tile_path ($_)	2206	my $neigh = $map->tile_path ($_)
1452	or next;	2207	or next;
1453	$neigh = find $neigh, $map	2208	$neigh = find $neigh, $map
1454	or next;	2209	or next;
1455	$neigh->load;	2210	$neigh->load;
1456		2211
		2212	# now find the diagonal neighbours
		2213	push @neigh,
1457	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2214	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1458	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2215	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1459	}	2216	}
1460		2217
1461	for (@diag) {	2218	for (grep defined $_->[0], @neigh) {
		2219	my ($path, $origin) = @$_;
1462	my $neigh = find @$_	2220	my $neigh = find $path, $origin
1463	or next;	2221	or next;
1464	$neigh->load;	2222	$neigh->load;
1465	}	2223	}
1466	}	2224	}
1467		2225
1468	sub find_sync {	2226	sub find_sync {
1469	my ($path, $origin) = @_;	2227	my ($path, $origin) = @_;
1470		2228
1471	cf::sync_job { find $path, $origin }	2229	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2230	if $Coro::current == $Coro::main;
		2231
		2232	find $path, $origin
1472	}	2233	}
1473		2234
1474	sub do_load_sync {	2235	sub do_load_sync {
1475	my ($map) = @_;	2236	my ($map) = @_;
1476		2237
1477	cf::sync_job { $map->load };	2238	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2239	if $Coro::current == $Coro::main;
		2240
		2241	$map->load;
1478	}	2242	}
1479		2243
1480	our %MAP_PREFETCH;	2244	our %MAP_PREFETCH;
		2245	our $MAP_PREFETCHER = undef;
		2246
		2247	sub find_async {
		2248	my ($path, $origin, $load) = @_;
		2249
		2250	$path = normalise $path, $origin && $origin->{path};
		2251
		2252	if (my $map = $cf::MAP{$path}) {
		2253	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2254	}
		2255
		2256	$MAP_PREFETCH{$path} |= $load;
		2257
1481	our $MAP_PREFETCHER = Coro::async {	2258	$MAP_PREFETCHER ||= cf::async {
1482	while () {	2259	$Coro::current->{desc} = "map prefetcher";
		2260
1483	while (%MAP_PREFETCH) {	2261	while (%MAP_PREFETCH) {
1484	my $key = each %MAP_PREFETCH	2262	while (my ($k, $v) = each %MAP_PREFETCH) {
1485	or next;	2263	if (my $map = find $k) {
		2264	$map->load if $v;
		2265	}
		2266
1486	my $path = delete $MAP_PREFETCH{$key};	2267	delete $MAP_PREFETCH{$k};
1487
1488	my $map = find $path
1489	or next;
1490	$map->load;
1491	}	2268	}
1492	Coro::schedule;	2269	}
		2270	undef $MAP_PREFETCHER;
1493	}	2271	};
1494	};
1495
1496	sub find_async {
1497	my ($path, $origin) = @_;
1498
1499	$path = new cf::path $path, $origin && $origin->path;
1500	my $key = $path->as_string;
1501
1502	if (my $map = $cf::MAP{$key}) {
1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504	}
1505
1506	$MAP_PREFETCH{$key} = $path;
1507	$MAP_PREFETCHER->ready;	2272	$MAP_PREFETCHER->prio (6);
1508		2273
1509	()	2274	()
		2275	}
		2276
		2277	# common code, used by both ->save and ->swapout
		2278	sub _save {
		2279	my ($self) = @_;
		2280
		2281	$self->{last_save} = $cf::RUNTIME;
		2282
		2283	return unless $self->dirty;
		2284
		2285	my $save = $self->save_path; utf8::encode $save;
		2286	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2287
		2288	$self->{load_path} = $save;
		2289
		2290	return if $self->{deny_save};
		2291
		2292	local $self->{last_access} = $self->last_access;#d#
		2293
		2294	cf::async {
		2295	$Coro::current->{desc} = "map player save";
		2296	$_->contr->save for $self->players;
		2297	};
		2298
		2299	cf::get_slot 0.02;
		2300
		2301	if ($uniq) {
		2302	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2303	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2304	} else {
		2305	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2306	}
1510	}	2307	}
1511		2308
1512	sub save {	2309	sub save {
1513	my ($self) = @_;	2310	my ($self) = @_;
1514		2311
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2312	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2313
1517	$self->{last_save} = $cf::RUNTIME;	2314	$self->_save;
1518
1519	return unless $self->dirty;
1520
1521	my $save = $self->{path}->save_path; utf8::encode $save;
1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1523
1524	$self->{load_path} = $save;
1525
1526	return if $self->{deny_save};
1527
1528	local $self->{last_access} = $self->last_access;#d#
1529
1530	cf::async {
1531	$_->contr->save for $self->players;
1532	};
1533
1534	if ($uniq) {
1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {
1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1539	}
1540	}	2315	}
1541		2316
1542	sub swap_out {	2317	sub swap_out {
1543	my ($self) = @_;	2318	my ($self) = @_;
1544		2319
1545	# save first because save cedes
1546	$self->save;
1547
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2320	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2321
		2322	return if $self->in_memory != cf::MAP_ACTIVE;
		2323	return if $self->{deny_save};
1550	return if $self->players;	2324	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;
1552	return if $self->{deny_save};
1553		2325
		2326	# first deactivate the map and "unlink" it from the core
		2327	$self->deactivate;
		2328	$_->clear_links_to ($self) for values %cf::MAP;
		2329	$self->in_memory (cf::MAP_SWAPPED);
		2330
		2331	# then atomically save
		2332	$self->_save;
		2333
		2334	# then free the map
1554	$self->clear;	2335	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2336	}
1557		2337
1558	sub reset_at {	2338	sub reset_at {
1559	my ($self) = @_;	2339	my ($self) = @_;
1560		2340
1561	# TODO: safety, remove and allow resettable per-player maps	2341	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->{path}{user_rel};
1563	return 1e99 if $self->{deny_reset};	2342	return 1e99 if $self->{deny_reset};
1564		2343
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2346
…		…
1572	my ($self) = @_;	2351	my ($self) = @_;
1573		2352
1574	$self->reset_at <= $cf::RUNTIME	2353	$self->reset_at <= $cf::RUNTIME
1575	}	2354	}
1576		2355
1577	sub unlink_save {
1578	my ($self) = @_;
1579
1580	utf8::encode (my $save = $self->{path}->save_path);
1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1583	}
1584
1585	sub rename {
1586	my ($self, $new_path) = @_;
1587
1588	$self->unlink_save;
1589
1590	delete $cf::MAP{$self->path};
1591	$self->{path} = new cf::path $new_path;
1592	$self->path ($self->{path}->as_string);
1593	$cf::MAP{$self->path} = $self;
1594
1595	$self->save;
1596	}
1597
1598	sub reset {	2356	sub reset {
1599	my ($self) = @_;	2357	my ($self) = @_;
1600		2358
1601	my $lock = cf::lock_acquire "map_data:" . $self->path;	2359	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2360
1603	return if $self->players;	2361	return if $self->players;
1604	return if $self->{path}{user_rel};#d#
1605		2362
1606	warn "resetting map ", $self->path;#d#	2363	cf::trace "resetting map ", $self->path, "\n";
		2364
		2365	$self->in_memory (cf::MAP_SWAPPED);
		2366
		2367	# need to save uniques path
		2368	unless ($self->{deny_save}) {
		2369	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2370
		2371	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2372	if $uniq;
		2373	}
1607		2374
1608	delete $cf::MAP{$self->path};	2375	delete $cf::MAP{$self->path};
1609		2376
		2377	$self->deactivate;
1610	$_->clear_links_to ($self) for values %cf::MAP;	2378	$_->clear_links_to ($self) for values %cf::MAP;
		2379	$self->clear;
1611		2380
1612	$self->unlink_save;	2381	$self->unlink_save;
1613	$self->destroy;	2382	$self->destroy;
1614	}	2383	}
1615		2384
1616	my $nuke_counter = "aaaa";	2385	my $nuke_counter = "aaaa";
1617		2386
1618	sub nuke {	2387	sub nuke {
1619	my ($self) = @_;	2388	my ($self) = @_;
1620		2389
		2390	{
		2391	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2392
		2393	delete $cf::MAP{$self->path};
		2394
		2395	$self->unlink_save;
		2396
		2397	bless $self, "cf::map::wrap";
		2398	delete $self->{deny_reset};
1621	$self->{deny_save} = 1;	2399	$self->{deny_save} = 1;
1622	$self->reset_timeout (1);	2400	$self->reset_timeout (1);
1623	$self->rename ("{nuke}/" . ($nuke_counter++));	2401	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2402
		2403	$cf::MAP{$self->path} = $self;
		2404	}
		2405
1624	$self->reset; # polite request, might not happen	2406	$self->reset; # polite request, might not happen
1625	}	2407	}
1626		2408
1627	sub customise_for {	2409	=item $maps = cf::map::tmp_maps
1628	my ($map, $ob) = @_;
1629		2410
1630	if ($map->per_player) {	2411	Returns an arrayref with all map paths of currently instantiated and saved
1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2412	maps. May block.
		2413
		2414	=cut
		2415
		2416	sub tmp_maps() {
1632	}	2417	[
		2418	map {
		2419	utf8::decode $_;
		2420	/\.map$/
		2421	? normalise $_
		2422	: ()
		2423	} @{ aio_readdir $TMPDIR or [] }
		2424	]
		2425	}
1633		2426
		2427	=item $maps = cf::map::random_maps
		2428
		2429	Returns an arrayref with all map paths of currently instantiated and saved
		2430	random maps. May block.
		2431
		2432	=cut
		2433
		2434	sub random_maps() {
		2435	[
		2436	map {
		2437	utf8::decode $_;
		2438	/\.map$/
		2439	? normalise "?random/$_"
		2440	: ()
		2441	} @{ aio_readdir $RANDOMDIR or [] }
		2442	]
		2443	}
		2444
		2445	=item cf::map::unique_maps
		2446
		2447	Returns an arrayref of paths of all shared maps that have
		2448	instantiated unique items. May block.
		2449
		2450	=cut
		2451
		2452	sub unique_maps() {
		2453	[
		2454	map {
		2455	utf8::decode $_;
		2456	s/\.map$//; # TODO future compatibility hack
		2457	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2458	? ()
		2459	: normalise $_
		2460	} @{ aio_readdir $UNIQUEDIR or [] }
		2461	]
		2462	}
		2463
		2464	=item cf::map::static_maps
		2465
		2466	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2467	file in the shared directory excluding F</styles> and F</editor>). May
		2468	block.
		2469
		2470	=cut
		2471
		2472	sub static_maps() {
		2473	my @dirs = "";
		2474	my @maps;
		2475
		2476	while (@dirs) {
		2477	my $dir = shift @dirs;
		2478
		2479	next if $dir eq "/styles" || $dir eq "/editor";
		2480
		2481	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2482	or return;
		2483
		2484	for (@$files) {
		2485	s/\.map$// or next;
		2486	utf8::decode $_;
		2487	push @maps, "$dir/$_";
		2488	}
		2489
		2490	push @dirs, map "$dir/$_", @$dirs;
		2491	}
		2492
1634	$map	2493	\@maps
1635	}	2494	}
1636
1637	package cf;
1638		2495
1639	=back	2496	=back
1640		2497
1641	=head3 cf::object	2498	=head3 cf::object
1642		2499
…		…
1646		2503
1647	=over 4	2504	=over 4
1648		2505
1649	=item $ob->inv_recursive	2506	=item $ob->inv_recursive
1650		2507
1651	Returns the inventory of the object _and_ their inventories, recursively.	2508	Returns the inventory of the object I<and> their inventories, recursively,
		2509	but I<not> the object itself.
1652		2510
1653	=cut	2511	=cut
1654		2512
1655	sub inv_recursive_;	2513	sub inv_recursive_;
1656	sub inv_recursive_ {	2514	sub inv_recursive_ {
…		…
1659		2517
1660	sub inv_recursive {	2518	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2519	inv_recursive_ inv $_[0]
1662	}	2520	}
1663		2521
		2522	=item $ref = $ob->ref
		2523
		2524	Creates and returns a persistent reference to an object that can be stored as a string.
		2525
		2526	=item $ob = cf::object::deref ($refstring)
		2527
		2528	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2529	even if the object actually exists. May block.
		2530
		2531	=cut
		2532
		2533	sub deref {
		2534	my ($ref) = @_;
		2535
		2536	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2537	my ($uuid, $name) = ($1, $2);
		2538	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2539	or return;
		2540	$pl->ob->uuid eq $uuid
		2541	or return;
		2542
		2543	$pl->ob
		2544	} else {
		2545	warn "$ref: cannot resolve object reference\n";
		2546	undef
		2547	}
		2548	}
		2549
1664	package cf;	2550	package cf;
1665		2551
1666	=back	2552	=back
1667		2553
1668	=head3 cf::object::player	2554	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2560	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2561	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2562	dialogue with the given NPC character.
1677		2563
1678	=cut	2564	=cut
		2565
		2566	our $SAY_CHANNEL = {
		2567	id => "say",
		2568	title => "Map",
		2569	reply => "say ",
		2570	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2571	};
		2572
		2573	our $CHAT_CHANNEL = {
		2574	id => "chat",
		2575	title => "Chat",
		2576	reply => "chat ",
		2577	tooltip => "Player chat and shouts, global to the server.",
		2578	};
1679		2579
1680	# rough implementation of a future "reply" method that works	2580	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2581	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2582	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2583	sub cf::object::player::reply($$$;$) {
…		…
1685		2585
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2586	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2587
1688	if ($self->{record_replies}) {	2588	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2589	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2590
1690	} else {	2591	} else {
		2592	my $pl = $self->contr;
		2593
		2594	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2595	my $dialog = $pl->{npc_dialog};
		2596	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2597
		2598	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2599	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2600	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2601	}
1693	}	2602	}
		2603	}
		2604
		2605	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2606
		2607	=cut
		2608
		2609	sub cf::object::send_msg {
		2610	my $pl = shift->contr
		2611	or return;
		2612	$pl->send_msg (@_);
1694	}	2613	}
1695		2614
1696	=item $player_object->may ("access")	2615	=item $player_object->may ("access")
1697		2616
1698	Returns wether the given player is authorized to access resource "access"	2617	Returns wether the given player is authorized to access resource "access"
…		…
1711		2630
1712	=item $player_object->enter_link	2631	=item $player_object->enter_link
1713		2632
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2633	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2634
1716	The player should be reaosnably safe there for short amounts of time. You	2635	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2636	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2637	though, as the player cannot control the character while it is on the link
		2638	map.
		2639
		2640	Will never block.
1718		2641
1719	=item $player_object->leave_link ($map, $x, $y)	2642	=item $player_object->leave_link ($map, $x, $y)
1720		2643
1721	Moves the player out of the specila link map onto the given map. If the	2644	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2645	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2646	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2647	fails, to the emergency map position.
1725		2648
1726	Might block.	2649	Might block.
1727		2650
1728	=cut	2651	=cut
		2652
		2653	sub link_map {
		2654	unless ($LINK_MAP) {
		2655	$LINK_MAP = cf::map::find "{link}"
		2656	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2657	$LINK_MAP->load;
		2658	}
		2659
		2660	$LINK_MAP
		2661	}
1729		2662
1730	sub cf::object::player::enter_link {	2663	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2664	my ($self) = @_;
1732		2665
1733	$self->deactivate_recursive;	2666	$self->deactivate_recursive;
1734		2667
1735	return if $self->map == $LINK_MAP;	2668	++$self->{_link_recursion};
		2669
		2670	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2671
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2672	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2673	if $self->map && $self->map->{path} ne "{link}";
1739		2674
1740	$self->enter_map ($LINK_MAP, 20, 20);	2675	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1741	}	2676	}
1742		2677
1743	sub cf::object::player::leave_link {	2678	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2679	my ($self, $map, $x, $y) = @_;
		2680
		2681	return unless $self->contr->active;
1745		2682
1746	my $link_pos = delete $self->{_link_pos};	2683	my $link_pos = delete $self->{_link_pos};
1747		2684
1748	unless ($map) {	2685	unless ($map) {
1749	# restore original map position	2686	# restore original map position
…		…
1760	($x, $y) = (-1, -1)	2697	($x, $y) = (-1, -1)
1761	unless (defined $x) && (defined $y);	2698	unless (defined $x) && (defined $y);
1762		2699
1763	# use -1 or undef as default coordinates, not 0, 0	2700	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2701	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2702	if $x <= 0 && $y <= 0;
1766		2703
1767	$map->load;	2704	$map->load;
1768	$map->load_diag;	2705	$map->load_neighbours;
1769		2706
1770	return unless $self->contr->active;	2707	return unless $self->contr->active;
		2708
		2709	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2710	if ($self->enter_map ($map, $x, $y)) {
		2711	# entering was successful
		2712	delete $self->{_link_recursion};
		2713	# only activate afterwards, to support waiting in hooks
1771	$self->activate_recursive;	2714	$self->activate_recursive;
1772	$self->enter_map ($map, $x, $y);
1773	}
1774
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},	2715	}
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2716
1789	# try to abort aborted map switching on player login :)	2717	}
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806		2718
1807	=item $player_object->goto ($path, $x, $y)	2719	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1808		2720
		2721	Moves the player to the given map-path and coordinates by first freezing
		2722	her, loading and preparing them map, calling the provided $check callback
		2723	that has to return the map if sucecssful, and then unfreezes the player on
		2724	the new (success) or old (failed) map position. In either case, $done will
		2725	be called at the end of this process.
		2726
		2727	Note that $check will be called with a potentially non-loaded map, so if
		2728	it needs a loaded map it has to call C<< ->load >>.
		2729
1809	=cut	2730	=cut
		2731
		2732	our $GOTOGEN;
1810		2733
1811	sub cf::object::player::goto {	2734	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2735	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2736
1814	$path = new cf::path $path;	2737	if ($self->{_link_recursion} >= $MAX_LINKS) {
1815	$path ne "/" or Carp::cluck ("oy");#d#	2738	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2739	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2740	($path, $x, $y) = @$EMERGENCY_POSITION;
		2741	}
		2742
		2743	# do generation counting so two concurrent goto's will be executed in-order
		2744	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1816		2745
1817	$self->enter_link;	2746	$self->enter_link;
1818		2747
1819	(async {	2748	(async {
1820	my $map = cf::map::find $path->as_string;	2749	$Coro::current->{desc} = "player::goto $path $x $y";
		2750
		2751	# *tag paths override both path and x|y
		2752	if ($path =~ /^\*(.*)$/) {
		2753	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2754	my $ob = $obs[rand @obs];
		2755
		2756	# see if we actually can go there
		2757	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2758	$ob = $obs[rand @obs];
		2759	} else {
		2760	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2761	}
		2762	# else put us there anyways for now #d#
		2763
		2764	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2765	} else {
		2766	($path, $x, $y) = (undef, undef, undef);
		2767	}
		2768	}
		2769
		2770	my $map = eval {
		2771	my $map = defined $path ? cf::map::find $path : undef;
		2772
		2773	if ($map) {
1821	$map = $map->customise_for ($self) if $map;	2774	$map = $map->customise_for ($self);
1822		2775	$map = $check->($map, $x, $y, $self) if $check && $map;
1823	# warn "entering ", $map->path, " at ($x, $y)\n"	2776	} else {
1824	# if $map;
1825
1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2777	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2778	}
1827		2779
		2780	$map
		2781	};
		2782
		2783	if ($@) {
		2784	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2785	LOG llevError | logBacktrace, Carp::longmess $@;
		2786	}
		2787
		2788	if ($gen == $self->{_goto_generation}) {
		2789	delete $self->{_goto_generation};
1828	$self->leave_link ($map, $x, $y);	2790	$self->leave_link ($map, $x, $y);
		2791	}
		2792
		2793	$done->($self) if $done;
1829	})->prio (1);	2794	})->prio (1);
1830	}	2795	}
1831		2796
1832	=item $player_object->enter_exit ($exit_object)	2797	=item $player_object->enter_exit ($exit_object)
1833		2798
…		…
1835		2800
1836	sub parse_random_map_params {	2801	sub parse_random_map_params {
1837	my ($spec) = @_;	2802	my ($spec) = @_;
1838		2803
1839	my $rmp = { # defaults	2804	my $rmp = { # defaults
1840	xsize => 10,	2805	xsize => (cf::rndm 15, 40),
1841	ysize => 10,	2806	ysize => (cf::rndm 15, 40),
		2807	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2808	#layout => string,
1842	};	2809	};
1843		2810
1844	for (split /\n/, $spec) {	2811	for (split /\n/, $spec) {
1845	my ($k, $v) = split /\s+/, $_, 2;	2812	my ($k, $v) = split /\s+/, $_, 2;
1846		2813
…		…
1858	# that depends on the exit object	2825	# that depends on the exit object
1859		2826
1860	my $rmp = parse_random_map_params $exit->msg;	2827	my $rmp = parse_random_map_params $exit->msg;
1861		2828
1862	if ($exit->map) {	2829	if ($exit->map) {
1863	$rmp->{region} = $exit->map->region_name;	2830	$rmp->{region} = $exit->region->name;
1864	$rmp->{origin_map} = $exit->map->path;	2831	$rmp->{origin_map} = $exit->map->path;
1865	$rmp->{origin_x} = $exit->x;	2832	$rmp->{origin_x} = $exit->x;
1866	$rmp->{origin_y} = $exit->y;	2833	$rmp->{origin_y} = $exit->y;
		2834
		2835	$exit->map->touch;
1867	}	2836	}
1868		2837
1869	$rmp->{random_seed} ||= $exit->random_seed;	2838	$rmp->{random_seed} ||= $exit->random_seed;
1870		2839
1871	my $data = cf::to_json $rmp;	2840	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1872	my $md5 = Digest::MD5::md5_hex $data;	2841	my $md5 = Digest::MD5::md5_hex $data;
		2842	my $meta = "$RANDOMDIR/$md5.meta";
1873		2843
1874	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2844	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1875	aio_write $fh, 0, (length $data), $data, 0;	2845	aio_write $fh, 0, (length $data), $data, 0;
		2846	undef $fh;
		2847	aio_rename "$meta~", $meta;
1876		2848
		2849	my $slaying = "?random/$md5";
		2850
		2851	if ($exit->valid) {
1877	$exit->slaying ("?random/$md5");	2852	$exit->slaying ("?random/$md5");
1878	$exit->msg (undef);	2853	$exit->msg (undef);
		2854	}
1879	}	2855	}
1880	}	2856	}
1881		2857
1882	sub cf::object::player::enter_exit {	2858	sub cf::object::player::enter_exit {
1883	my ($self, $exit) = @_;	2859	my ($self, $exit) = @_;
…		…
1885	return unless $self->type == cf::PLAYER;	2861	return unless $self->type == cf::PLAYER;
1886		2862
1887	$self->enter_link;	2863	$self->enter_link;
1888		2864
1889	(async {	2865	(async {
1890	$self->deactivate_recursive; # just to be sure	2866	$Coro::current->{desc} = "enter_exit";
		2867
1891	unless (eval {	2868	unless (eval {
		2869	$self->deactivate_recursive; # just to be sure
		2870
		2871	# random map handling
		2872	{
		2873	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2874
1892	prepare_random_map $exit	2875	prepare_random_map $exit
1893	if $exit->slaying eq "/!";	2876	if $exit->slaying eq "/!";
		2877	}
1894		2878
1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2879	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2880	my $x = $exit->stats->hp;
		2881	my $y = $exit->stats->sp;
1897		2882
		2883	$self->goto ($map, $x, $y);
		2884
		2885	# if exit is damned, update players death & WoR home-position
		2886	$self->contr->savebed ($map, $x, $y)
		2887	if $exit->flag (cf::FLAG_DAMNED);
		2888
1898	1;	2889	1
1899	}) {	2890	}) {
1900	$self->message ("Something went wrong deep within the crossfire server. "	2891	$self->message ("Something went wrong deep within the deliantra server. "
1901	. "I'll try to bring you back to the map you were before. "	2892	. "I'll try to bring you back to the map you were before. "
1902	. "Please report this to the dungeon master",	2893	. "Please report this to the dungeon master!",
1903	cf::NDI_UNIQUE | cf::NDI_RED);	2894	cf::NDI_UNIQUE | cf::NDI_RED);
1904		2895
1905	warn "ERROR in enter_exit: $@";	2896	error "ERROR in enter_exit: $@";
1906	$self->leave_link;	2897	$self->leave_link;
1907	}	2898	}
1908	})->prio (1);	2899	})->prio (1);
1909	}	2900	}
1910		2901
…		…
1921		2912
1922	sub cf::client::send_drawinfo {	2913	sub cf::client::send_drawinfo {
1923	my ($self, $text, $flags) = @_;	2914	my ($self, $text, $flags) = @_;
1924		2915
1925	utf8::encode $text;	2916	utf8::encode $text;
1926	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2917	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1927	}	2918	}
1928		2919
		2920	=item $client->send_big_packet ($pkt)
		2921
		2922	Like C<send_packet>, but tries to compress large packets, and fragments
		2923	them as required.
		2924
		2925	=cut
		2926
		2927	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2928
		2929	sub cf::client::send_big_packet {
		2930	my ($self, $pkt) = @_;
		2931
		2932	# try lzf for large packets
		2933	$pkt = "lzf " . Compress::LZF::compress $pkt
		2934	if 1024 <= length $pkt and $self->{can_lzf};
		2935
		2936	# split very large packets
		2937	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2938	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2939	$pkt = "frag";
		2940	}
		2941
		2942	$self->send_packet ($pkt);
		2943	}
		2944
		2945	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2946
		2947	Send a drawinfo or msg packet to the client, formatting the msg for the
		2948	client if neccessary. C<$type> should be a string identifying the type of
		2949	the message, with C<log> being the default. If C<$color> is negative, suppress
		2950	the message unless the client supports the msg packet.
		2951
		2952	=cut
		2953
		2954	# non-persistent channels (usually the info channel)
		2955	our %CHANNEL = (
		2956	"c/motd" => {
		2957	id => "infobox",
		2958	title => "MOTD",
		2959	reply => undef,
		2960	tooltip => "The message of the day",
		2961	},
		2962	"c/identify" => {
		2963	id => "infobox",
		2964	title => "Identify",
		2965	reply => undef,
		2966	tooltip => "Items recently identified",
		2967	},
		2968	"c/examine" => {
		2969	id => "infobox",
		2970	title => "Examine",
		2971	reply => undef,
		2972	tooltip => "Signs and other items you examined",
		2973	},
		2974	"c/shopinfo" => {
		2975	id => "infobox",
		2976	title => "Shop Info",
		2977	reply => undef,
		2978	tooltip => "What your bargaining skill tells you about the shop",
		2979	},
		2980	"c/book" => {
		2981	id => "infobox",
		2982	title => "Book",
		2983	reply => undef,
		2984	tooltip => "The contents of a note or book",
		2985	},
		2986	"c/lookat" => {
		2987	id => "infobox",
		2988	title => "Look",
		2989	reply => undef,
		2990	tooltip => "What you saw there",
		2991	},
		2992	"c/who" => {
		2993	id => "infobox",
		2994	title => "Players",
		2995	reply => undef,
		2996	tooltip => "Shows players who are currently online",
		2997	},
		2998	"c/body" => {
		2999	id => "infobox",
		3000	title => "Body Parts",
		3001	reply => undef,
		3002	tooltip => "Shows which body parts you posess and are available",
		3003	},
		3004	"c/statistics" => {
		3005	id => "infobox",
		3006	title => "Statistics",
		3007	reply => undef,
		3008	tooltip => "Shows your primary statistics",
		3009	},
		3010	"c/skills" => {
		3011	id => "infobox",
		3012	title => "Skills",
		3013	reply => undef,
		3014	tooltip => "Shows your experience per skill and item power",
		3015	},
		3016	"c/shopitems" => {
		3017	id => "infobox",
		3018	title => "Shop Items",
		3019	reply => undef,
		3020	tooltip => "Shows the items currently for sale in this shop",
		3021	},
		3022	"c/resistances" => {
		3023	id => "infobox",
		3024	title => "Resistances",
		3025	reply => undef,
		3026	tooltip => "Shows your resistances",
		3027	},
		3028	"c/pets" => {
		3029	id => "infobox",
		3030	title => "Pets",
		3031	reply => undef,
		3032	tooltip => "Shows information abotu your pets/a specific pet",
		3033	},
		3034	"c/perceiveself" => {
		3035	id => "infobox",
		3036	title => "Perceive Self",
		3037	reply => undef,
		3038	tooltip => "You gained detailed knowledge about yourself",
		3039	},
		3040	"c/uptime" => {
		3041	id => "infobox",
		3042	title => "Uptime",
		3043	reply => undef,
		3044	tooltip => "How long the server has been running since last restart",
		3045	},
		3046	"c/mapinfo" => {
		3047	id => "infobox",
		3048	title => "Map Info",
		3049	reply => undef,
		3050	tooltip => "Information related to the maps",
		3051	},
		3052	"c/party" => {
		3053	id => "party",
		3054	title => "Party",
		3055	reply => "gsay ",
		3056	tooltip => "Messages and chat related to your party",
		3057	},
		3058	"c/death" => {
		3059	id => "death",
		3060	title => "Death",
		3061	reply => undef,
		3062	tooltip => "Reason for and more info about your most recent death",
		3063	},
		3064	"c/say" => $SAY_CHANNEL,
		3065	"c/chat" => $CHAT_CHANNEL,
		3066	);
		3067
		3068	sub cf::client::send_msg {
		3069	my ($self, $channel, $msg, $color, @extra) = @_;
		3070
		3071	$msg = $self->pl->expand_cfpod ($msg)
		3072	unless $color & cf::NDI_VERBATIM;
		3073
		3074	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3075
		3076	# check predefined channels, for the benefit of C
		3077	if ($CHANNEL{$channel}) {
		3078	$channel = $CHANNEL{$channel};
		3079
		3080	$self->ext_msg (channel_info => $channel);
		3081	$channel = $channel->{id};
		3082
		3083	} elsif (ref $channel) {
		3084	# send meta info to client, if not yet sent
		3085	unless (exists $self->{channel}{$channel->{id}}) {
		3086	$self->{channel}{$channel->{id}} = $channel;
		3087	$self->ext_msg (channel_info => $channel);
		3088	}
		3089
		3090	$channel = $channel->{id};
		3091	}
		3092
		3093	return unless @extra || length $msg;
		3094
		3095	# default colour, mask it out
		3096	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3097	if $color & cf::NDI_DEF;
		3098
		3099	my $pkt = "msg "
		3100	. $self->{json_coder}->encode (
		3101	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3102	);
		3103
		3104	$self->send_big_packet ($pkt);
		3105	}
		3106
		3107	=item $client->ext_msg ($type, @msg)
		3108
		3109	Sends an ext event to the client.
		3110
		3111	=cut
		3112
		3113	sub cf::client::ext_msg($$@) {
		3114	my ($self, $type, @msg) = @_;
		3115
		3116	if ($self->extcmd == 2) {
		3117	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3118	} elsif ($self->extcmd == 1) { # TODO: remove
		3119	push @msg, msgtype => "event_$type";
		3120	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3121	}
		3122	}
		3123
		3124	=item $client->ext_reply ($msgid, @msg)
		3125
		3126	Sends an ext reply to the client.
		3127
		3128	=cut
		3129
		3130	sub cf::client::ext_reply($$@) {
		3131	my ($self, $id, @msg) = @_;
		3132
		3133	if ($self->extcmd == 2) {
		3134	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3135	} elsif ($self->extcmd == 1) {
		3136	#TODO: version 1, remove
		3137	unshift @msg, msgtype => "reply", msgid => $id;
		3138	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3139	}
		3140	}
1929		3141
1930	=item $success = $client->query ($flags, "text", \&cb)	3142	=item $success = $client->query ($flags, "text", \&cb)
1931		3143
1932	Queues a query to the client, calling the given callback with	3144	Queues a query to the client, calling the given callback with
1933	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3145	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1934	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3146	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1935		3147
1936	Queries can fail, so check the return code. Or don't, as queries will become	3148	Queries can fail, so check the return code. Or don't, as queries will
1937	reliable at some point in the future.	3149	become reliable at some point in the future.
1938		3150
1939	=cut	3151	=cut
1940		3152
1941	sub cf::client::query {	3153	sub cf::client::query {
1942	my ($self, $flags, $text, $cb) = @_;	3154	my ($self, $flags, $text, $cb) = @_;
…		…
1950	utf8::encode $text;	3162	utf8::encode $text;
1951	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3163	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1952		3164
1953	$self->send_packet ($self->{query_queue}[0][0])	3165	$self->send_packet ($self->{query_queue}[0][0])
1954	if @{ $self->{query_queue} } == 1;	3166	if @{ $self->{query_queue} } == 1;
		3167
		3168	1
1955	}	3169	}
1956		3170
1957	cf::client->attach (	3171	cf::client->attach (
		3172	on_connect => sub {
		3173	my ($ns) = @_;
		3174
		3175	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3176	},
1958	on_reply => sub {	3177	on_reply => sub {
1959	my ($ns, $msg) = @_;	3178	my ($ns, $msg) = @_;
1960		3179
1961	# this weird shuffling is so that direct followup queries	3180	# this weird shuffling is so that direct followup queries
1962	# get handled first	3181	# get handled first
1963	my $queue = delete $ns->{query_queue}	3182	my $queue = delete $ns->{query_queue}
1964	or return; # be conservative, not sure how that can happen, but we saw a crash here	3183	or return; # be conservative, not sure how that can happen, but we saw a crash here
1965		3184
1966	(shift @$queue)->[1]->($msg);	3185	(shift @$queue)->[1]->($msg);
		3186	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1967		3187
1968	push @{ $ns->{query_queue} }, @$queue;	3188	push @{ $ns->{query_queue} }, @$queue;
1969		3189
1970	if (@{ $ns->{query_queue} } == @$queue) {	3190	if (@{ $ns->{query_queue} } == @$queue) {
1971	if (@$queue) {	3191	if (@$queue) {
…		…
1973	} else {	3193	} else {
1974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3194	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1975	}	3195	}
1976	}	3196	}
1977	},	3197	},
		3198	on_exticmd => sub {
		3199	my ($ns, $buf) = @_;
		3200
		3201	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3202
		3203	if (ref $msg) {
		3204	my ($type, $reply, @payload) =
		3205	"ARRAY" eq ref $msg
		3206	? @$msg
		3207	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3208
		3209	my @reply;
		3210
		3211	if (my $cb = $EXTICMD{$type}) {
		3212	@reply = $cb->($ns, @payload);
		3213	}
		3214
		3215	$ns->ext_reply ($reply, @reply)
		3216	if $reply;
		3217
		3218	} else {
		3219	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3220	}
		3221
		3222	cf::override;
		3223	},
1978	);	3224	);
1979		3225
1980	=item $client->async (\&cb)	3226	=item $client->async (\&cb)
1981		3227
1982	Create a new coroutine, running the specified callback. The coroutine will	3228	Create a new coroutine, running the specified callback. The coroutine will
…		…
1998		3244
1999	$coro	3245	$coro
2000	}	3246	}
2001		3247
2002	cf::client->attach (	3248	cf::client->attach (
2003	on_destroy => sub {	3249	on_client_destroy => sub {
2004	my ($ns) = @_;	3250	my ($ns) = @_;
2005		3251
2006	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3252	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2007	},	3253	},
2008	);	3254	);
…		…
2023	our $safe = new Safe "safe";	3269	our $safe = new Safe "safe";
2024	our $safe_hole = new Safe::Hole;	3270	our $safe_hole = new Safe::Hole;
2025		3271
2026	$SIG{FPE} = 'IGNORE';	3272	$SIG{FPE} = 'IGNORE';
2027		3273
2028	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3274	$safe->permit_only (Opcode::opset qw(
		3275	:base_core :base_mem :base_orig :base_math :base_loop
		3276	grepstart grepwhile mapstart mapwhile
		3277	sort time
		3278	));
2029		3279
2030	# here we export the classes and methods available to script code	3280	# here we export the classes and methods available to script code
2031		3281
2032	=pod	3282	=pod
2033		3283
2034	The following fucntions and emthods are available within a safe environment:	3284	The following functions and methods are available within a safe environment:
2035		3285
2036	cf::object contr pay_amount pay_player map	3286	cf::object
		3287	contr pay_amount pay_player map x y force_find force_add destroy
		3288	insert remove name archname title slaying race decrease split
		3289	value
		3290
2037	cf::object::player player	3291	cf::object::player
2038	cf::player peaceful	3292	player
2039	cf::map trigger	3293
		3294	cf::player
		3295	peaceful
		3296
		3297	cf::map
		3298	trigger
2040		3299
2041	=cut	3300	=cut
2042		3301
2043	for (	3302	for (
2044	["cf::object" => qw(contr pay_amount pay_player map)],	3303	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3304	insert remove inv nrof name archname title slaying race
		3305	decrease split destroy change_exp value msg lore send_msg)],
2045	["cf::object::player" => qw(player)],	3306	["cf::object::player" => qw(player)],
2046	["cf::player" => qw(peaceful)],	3307	["cf::player" => qw(peaceful send_msg)],
2047	["cf::map" => qw(trigger)],	3308	["cf::map" => qw(trigger)],
2048	) {	3309	) {
2049	no strict 'refs';
2050	my ($pkg, @funs) = @$_;	3310	my ($pkg, @funs) = @$_;
2051	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3311	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2052	for @funs;	3312	for @funs;
2053	}	3313	}
2054		3314
…		…
2069		3329
2070	my $qcode = $code;	3330	my $qcode = $code;
2071	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3331	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2072	$qcode =~ s/\n/\\n/g;	3332	$qcode =~ s/\n/\\n/g;
2073		3333
		3334	%vars = (_dummy => 0) unless %vars;
		3335
		3336	my @res;
2074	local $_;	3337	local $_;
2075	local @safe::cf::_safe_eval_args = values %vars;
2076		3338
2077	my $eval =	3339	my $eval =
2078	"do {\n"	3340	"do {\n"
2079	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3341	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2080	. "#line 0 \"{$qcode}\"\n"	3342	. "#line 0 \"{$qcode}\"\n"
2081	. $code	3343	. $code
2082	. "\n}"	3344	. "\n}"
2083	;	3345	;
2084		3346
		3347	if ($CFG{safe_eval}) {
2085	sub_generation_inc;	3348	sub_generation_inc;
		3349	local @safe::cf::_safe_eval_args = values %vars;
2086	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3350	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2087	sub_generation_inc;	3351	sub_generation_inc;
		3352	} else {
		3353	local @cf::_safe_eval_args = values %vars;
		3354	@res = wantarray ? eval eval : scalar eval $eval;
		3355	}
2088		3356
2089	if ($@) {	3357	if ($@) {
2090	warn "$@";	3358	warn "$@",
2091	warn "while executing safe code '$code'\n";	3359	"while executing safe code '$code'\n",
2092	warn "with arguments " . (join " ", %vars) . "\n";	3360	"with arguments " . (join " ", %vars) . "\n";
2093	}	3361	}
2094		3362
2095	wantarray ? @res : $res[0]	3363	wantarray ? @res : $res[0]
2096	}	3364	}
2097		3365
…		…
2111	=cut	3379	=cut
2112		3380
2113	sub register_script_function {	3381	sub register_script_function {
2114	my ($fun, $cb) = @_;	3382	my ($fun, $cb) = @_;
2115		3383
2116	no strict 'refs';	3384	$fun = "safe::$fun" if $CFG{safe_eval};
2117	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3385	*$fun = $safe_hole->wrap ($cb);
2118	}	3386	}
2119		3387
2120	=back	3388	=back
2121		3389
2122	=cut	3390	=cut
2123		3391
2124	#############################################################################	3392	#############################################################################
		3393	# the server's init and main functions
2125		3394
2126	=head2 EXTENSION DATABASE SUPPORT	3395	sub load_facedata($) {
		3396	my ($path) = @_;
2127		3397
2128	Crossfire maintains a very simple database for extension use. It can	3398	# HACK to clear player env face cache, we need some signal framework
2129	currently store anything that can be serialised using Storable, which	3399	# for this (global event?)
2130	excludes objects.	3400	%ext::player_env::MUSIC_FACE_CACHE = ();
2131		3401
2132	The parameter C<$family> should best start with the name of the extension	3402	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2133	using it, it should be unique.
2134		3403
2135	=over 4	3404	trace "loading facedata from $path\n";
2136		3405
2137	=item $hashref = cf::db_get $family	3406	0 < aio_load $path, my $facedata
		3407	or die "$path: $!";
2138		3408
2139	Return a hashref for use by the extension C<$family>, which can be	3409	$facedata = Coro::Storable::thaw $facedata;
2140	modified. After modifications, you have to call C<cf::db_dirty> or
2141	C<cf::db_sync>.
2142		3410
2143	=item $value = cf::db_get $family => $key	3411	$facedata->{version} == 2
		3412	or cf::cleanup "$path: version mismatch, cannot proceed.";
2144		3413
2145	Returns a single value from the database	3414	# patch in the exptable
2146		3415	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2147	=item cf::db_put $family => $hashref	3416	$facedata->{resource}{"res/exp_table"} = {
2148		3417	type => FT_RSRC,
2149	Stores the given family hashref into the database. Updates are delayed, if	3418	data => $exp_table,
2150	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3419	hash => (Digest::MD5::md5 $exp_table),
2151
2152	=item cf::db_put $family => $key => $value
2153
2154	Stores the given C<$value> in the family hash. Updates are delayed, if you
2155	want the data to be synced to disk immediately, use C<cf::db_sync>.
2156
2157	=item cf::db_dirty
2158
2159	Marks the database as dirty, to be updated at a later time.
2160
2161	=item cf::db_sync
2162
2163	Immediately write the database to disk I<if it is dirty>.
2164
2165	=cut
2166
2167	our $DB;
2168
2169	{
2170	my $path = cf::localdir . "/database.pst";
2171
2172	sub db_load() {
2173	$DB = stat $path ? Storable::retrieve $path : { };
2174	}
2175
2176	my $pid;
2177
2178	sub db_save() {
2179	waitpid $pid, 0 if $pid;
2180	if (0 == ($pid = fork)) {
2181	$DB->{_meta}{version} = 1;
2182	Storable::nstore $DB, "$path~";
2183	rename "$path~", $path;
2184	cf::_exit 0 if defined $pid;
2185	}
2186	}
2187
2188	my $dirty;
2189
2190	sub db_sync() {
2191	db_save if $dirty;
2192	undef $dirty;
2193	}
2194
2195	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2196	db_sync;
2197	});	3420	};
		3421	cf::cede_to_tick;
2198		3422
2199	sub db_dirty() {
2200	$dirty = 1;
2201	$idle->start;
2202	}	3423	{
		3424	my $faces = $facedata->{faceinfo};
2203		3425
2204	sub db_get($;$) {	3426	while (my ($face, $info) = each %$faces) {
2205	@_ >= 2	3427	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2206	? $DB->{$_[0]}{$_[1]}
2207	: ($DB->{$_[0]} ||= { })
2208	}
2209		3428
2210	sub db_put($$;$) {	3429	cf::face::set_visibility $idx, $info->{visibility};
2211	if (@_ >= 3) {	3430	cf::face::set_magicmap $idx, $info->{magicmap};
2212	$DB->{$_[0]}{$_[1]} = $_[2];	3431	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2213	} else {	3432	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2214	$DB->{$_[0]} = $_[1];	3433	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2215	}
2216	db_dirty;
2217	}
2218		3434
2219	cf::global->attach (	3435	cf::cede_to_tick;
2220	prio => 10000,
2221	on_cleanup => sub {
2222	db_sync;
2223	},	3436	}
2224	);
2225	}
2226		3437
2227	#############################################################################	3438	while (my ($face, $info) = each %$faces) {
2228	# the server's main()	3439	next unless $info->{smooth};
2229		3440
2230	sub cfg_load {	3441	my $idx = cf::face::find $face
2231	open my $fh, "<:utf8", cf::confdir . "/config"	3442	or next;
2232	or return;
2233		3443
2234	local $/;	3444	if (my $smooth = cf::face::find $info->{smooth}) {
2235	*CFG = YAML::Syck::Load <$fh>;	3445	cf::face::set_smooth $idx, $smooth;
		3446	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3447	} else {
		3448	error "smooth face '$info->{smooth}' not found for face '$face'";
		3449	}
2236		3450
		3451	cf::cede_to_tick;
		3452	}
		3453	}
		3454
		3455	{
		3456	my $anims = $facedata->{animinfo};
		3457
		3458	while (my ($anim, $info) = each %$anims) {
		3459	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3460	cf::cede_to_tick;
		3461	}
		3462
		3463	cf::anim::invalidate_all; # d'oh
		3464	}
		3465
		3466	{
		3467	my $res = $facedata->{resource};
		3468
		3469	while (my ($name, $info) = each %$res) {
		3470	if (defined $info->{type}) {
		3471	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3472
		3473	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3474	cf::face::set_type $idx, $info->{type};
		3475	} else {
		3476	$RESOURCE{$name} = $info; # unused
		3477	}
		3478
		3479	cf::cede_to_tick;
		3480	}
		3481	}
		3482
		3483	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3484
		3485	1
		3486	}
		3487
		3488	register_exticmd fx_want => sub {
		3489	my ($ns, $want) = @_;
		3490
		3491	while (my ($k, $v) = each %$want) {
		3492	$ns->fx_want ($k, $v);
		3493	}
		3494	};
		3495
		3496	sub load_resource_file($) {
		3497	my $guard = lock_acquire "load_resource_file";
		3498
		3499	my $status = load_resource_file_ $_[0];
		3500	get_slot 0.1, 100;
		3501	cf::arch::commit_load;
		3502
		3503	$status
		3504	}
		3505
		3506	sub reload_regions {
		3507	# HACK to clear player env face cache, we need some signal framework
		3508	# for this (global event?)
		3509	%ext::player_env::MUSIC_FACE_CACHE = ();
		3510
		3511	load_resource_file "$MAPDIR/regions"
		3512	or die "unable to load regions file\n";
		3513
		3514	for (cf::region::list) {
		3515	$_->{match} = qr/$_->{match}/
		3516	if exists $_->{match};
		3517	}
		3518	}
		3519
		3520	sub reload_facedata {
		3521	load_facedata "$DATADIR/facedata"
		3522	or die "unable to load facedata\n";
		3523	}
		3524
		3525	sub reload_archetypes {
		3526	load_resource_file "$DATADIR/archetypes"
		3527	or die "unable to load archetypes\n";
		3528	}
		3529
		3530	sub reload_treasures {
		3531	load_resource_file "$DATADIR/treasures"
		3532	or die "unable to load treasurelists\n";
		3533	}
		3534
		3535	sub reload_sound {
		3536	trace "loading sound config from $DATADIR/sound\n";
		3537
		3538	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3539	or die "$DATADIR/sound $!";
		3540
		3541	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3542
		3543	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3544	my $sound = $soundconf->{compat}[$_]
		3545	or next;
		3546
		3547	my $face = cf::face::find "sound/$sound->[1]";
		3548	cf::sound::set $sound->[0] => $face;
		3549	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3550	}
		3551
		3552	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3553	my $face = cf::face::find "sound/$v";
		3554	cf::sound::set $k => $face;
		3555	}
		3556	}
		3557
		3558	sub reload_resources {
		3559	trace "reloading resource files...\n";
		3560
		3561	reload_exp_table;
		3562	reload_materials;
		3563	reload_facedata;
		3564	reload_sound;
		3565	reload_archetypes;
		3566	reload_regions;
		3567	reload_treasures;
		3568
		3569	trace "finished reloading resource files\n";
		3570	}
		3571
		3572	sub reload_config {
		3573	trace "reloading config file...\n";
		3574
		3575	0 < aio_load "$CONFDIR/config", my $config
		3576	or die "$CONFDIR/config: $!";
		3577
		3578	utf8::decode $config;
		3579	*CFG = yaml_load $config;
		3580
2237	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3581	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2238		3582
2239	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3583	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2240	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3584	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2241		3585
2242	if (exists $CFG{mlockall}) {	3586	if (exists $CFG{mlockall}) {
…		…
2246	};	3590	};
2247	warn $@ if $@;	3591	warn $@ if $@;
2248	}	3592	}
2249	}	3593	}
2250		3594
		3595	sub pidfile() {
		3596	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3597	or die "$PIDFILE: $!";
		3598	flock $fh, &Fcntl::LOCK_EX
		3599	or die "$PIDFILE: flock: $!";
		3600	$fh
		3601	}
		3602
		3603	# make sure only one server instance is running at any one time
		3604	sub atomic {
		3605	my $fh = pidfile;
		3606
		3607	my $pid = <$fh>;
		3608	kill 9, $pid if $pid > 0;
		3609
		3610	seek $fh, 0, 0;
		3611	print $fh $$;
		3612	}
		3613
		3614	sub main_loop {
		3615	trace "EV::loop starting\n";
		3616	if (1) {
		3617	EV::loop;
		3618	}
		3619	trace "EV::loop returned\n";
		3620	goto &main_loop unless $REALLY_UNLOOP;
		3621	}
		3622
2251	sub main {	3623	sub main {
		3624	cf::init_globals; # initialise logging
		3625
		3626	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3627	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3628	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3629	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3630
		3631	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3632
2252	# we must not ever block the main coroutine	3633	# we must not ever block the main coroutine
2253	local $Coro::idle = sub {	3634	local $Coro::idle = sub {
2254	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3635	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2255	async { Event::one_event };	3636	(async {
		3637	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3638	EV::loop EV::LOOP_ONESHOT;
		3639	})->prio (Coro::PRIO_MAX);
2256	};	3640	};
2257		3641
2258	cfg_load;	3642	evthread_start IO::AIO::poll_fileno;
2259	db_load;	3643
		3644	cf::sync_job {
		3645	cf::incloader::init ();
		3646
		3647	cf::init_anim;
		3648	cf::init_attackmess;
		3649	cf::init_dynamic;
		3650
		3651	cf::load_settings;
		3652
		3653	reload_resources;
		3654	reload_config;
		3655	db_init;
		3656
		3657	cf::init_uuid;
		3658	cf::init_signals;
		3659	cf::init_skills;
		3660
		3661	cf::init_beforeplay;
		3662
		3663	atomic;
		3664
2260	load_extensions;	3665	load_extensions;
2261	Event::loop;	3666
		3667	utime time, time, $RUNTIMEFILE;
		3668
		3669	# no (long-running) fork's whatsoever before this point(!)
		3670	use POSIX ();
		3671	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3672
		3673	cf::_post_init 0;
		3674	};
		3675
		3676	cf::object::thawer::errors_are_fatal 0;
		3677	info "parse errors in files are no longer fatal from this point on.\n";
		3678
		3679	my $free_main; $free_main = EV::idle sub {
		3680	undef $free_main;
		3681	undef &main; # free gobs of memory :)
		3682	};
		3683
		3684	goto &main_loop;
2262	}	3685	}
2263		3686
2264	#############################################################################	3687	#############################################################################
2265	# initialisation and cleanup	3688	# initialisation and cleanup
2266		3689
2267	# install some emergency cleanup handlers	3690	# install some emergency cleanup handlers
2268	BEGIN {	3691	BEGIN {
		3692	our %SIGWATCHER = ();
2269	for my $signal (qw(INT HUP TERM)) {	3693	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	3694	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2271	data => WF_AUTOCANCEL,
2272	signal => $signal,
2273	cb => sub {
2274	cf::cleanup "SIG$signal";	3695	cf::cleanup "SIG$signal";
2275	},
2276	);	3696	};
		3697	}
		3698	}
		3699
		3700	sub write_runtime_sync {
		3701	my $t0 = AE::time;
		3702
		3703	# first touch the runtime file to show we are still running:
		3704	# the fsync below can take a very very long time.
		3705
		3706	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3707
		3708	my $guard = cf::lock_acquire "write_runtime";
		3709
		3710	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3711	or return;
		3712
		3713	my $value = $cf::RUNTIME + 90 + 10;
		3714	# 10 is the runtime save interval, for a monotonic clock
		3715	# 60 allows for the watchdog to kill the server.
		3716
		3717	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3718	and return;
		3719
		3720	# always fsync - this file is important
		3721	aio_fsync $fh
		3722	and return;
		3723
		3724	# touch it again to show we are up-to-date
		3725	aio_utime $fh, undef, undef;
		3726
		3727	close $fh
		3728	or return;
		3729
		3730	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3731	and return;
		3732
		3733	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3734
2277	}	3735	1
		3736	}
		3737
		3738	our $uuid_lock;
		3739	our $uuid_skip;
		3740
		3741	sub write_uuid_sync($) {
		3742	$uuid_skip ||= $_[0];
		3743
		3744	return if $uuid_lock;
		3745	local $uuid_lock = 1;
		3746
		3747	my $uuid = "$LOCALDIR/uuid";
		3748
		3749	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3750	or return;
		3751
		3752	my $value = uuid_seq uuid_cur;
		3753
		3754	unless ($value) {
		3755	info "cowardly refusing to write zero uuid value!\n";
		3756	return;
		3757	}
		3758
		3759	my $value = uuid_str $value + $uuid_skip;
		3760	$uuid_skip = 0;
		3761
		3762	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3763	and return;
		3764
		3765	# always fsync - this file is important
		3766	aio_fsync $fh
		3767	and return;
		3768
		3769	close $fh
		3770	or return;
		3771
		3772	aio_rename "$uuid~", $uuid
		3773	and return;
		3774
		3775	trace "uuid file written ($value).\n";
		3776
		3777	1
		3778
		3779	}
		3780
		3781	sub write_uuid($$) {
		3782	my ($skip, $sync) = @_;
		3783
		3784	$sync ? write_uuid_sync $skip
		3785	: async { write_uuid_sync $skip };
2278	}	3786	}
2279		3787
2280	sub emergency_save() {	3788	sub emergency_save() {
2281	my $freeze_guard = cf::freeze_mainloop;	3789	my $freeze_guard = cf::freeze_mainloop;
2282		3790
2283	warn "enter emergency perl save\n";	3791	info "emergency_perl_save: enter\n";
		3792
		3793	# this is a trade-off: we want to be very quick here, so
		3794	# save all maps without fsync, and later call a global sync
		3795	# (which in turn might be very very slow)
		3796	local $USE_FSYNC = 0;
2284		3797
2285	cf::sync_job {	3798	cf::sync_job {
		3799	cf::write_runtime_sync; # external watchdog should not bark
		3800
2286	# use a peculiar iteration method to avoid tripping on perl	3801	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	3802	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/Destroyed asynchronously.	3803	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	3804	info "emergency_perl_save: begin player save\n";
2290	for my $login (keys %cf::PLAYER) {	3805	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	3806	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	3807	$pl->valid or next;
		3808	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2293	$pl->save;	3809	$pl->save;
2294	}	3810	}
2295	warn "end emergency player save\n";	3811	info "emergency_perl_save: end player save\n";
2296		3812
2297	warn "begin emergency map save\n";	3813	cf::write_runtime_sync; # external watchdog should not bark
		3814
		3815	info "emergency_perl_save: begin map save\n";
2298	for my $path (keys %cf::MAP) {	3816	for my $path (keys %cf::MAP) {
2299	my $map = $cf::MAP{$path} or next;	3817	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	3818	$map->valid or next;
2301	$map->save;	3819	$map->save;
2302	}	3820	}
2303	warn "end emergency map save\n";	3821	info "emergency_perl_save: end map save\n";
		3822
		3823	cf::write_runtime_sync; # external watchdog should not bark
		3824
		3825	info "emergency_perl_save: begin database checkpoint\n";
		3826	BDB::db_env_txn_checkpoint $DB_ENV;
		3827	info "emergency_perl_save: end database checkpoint\n";
		3828
		3829	info "emergency_perl_save: begin write uuid\n";
		3830	write_uuid_sync 1;
		3831	info "emergency_perl_save: end write uuid\n";
		3832
		3833	cf::write_runtime_sync; # external watchdog should not bark
		3834
		3835	trace "emergency_perl_save: syncing database to disk";
		3836	BDB::db_env_txn_checkpoint $DB_ENV;
		3837
		3838	info "emergency_perl_save: starting sync\n";
		3839	IO::AIO::aio_sync sub {
		3840	info "emergency_perl_save: finished sync\n";
		3841	};
		3842
		3843	cf::write_runtime_sync; # external watchdog should not bark
		3844
		3845	trace "emergency_perl_save: flushing outstanding aio requests";
		3846	while (IO::AIO::nreqs || BDB::nreqs) {
		3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3848	}
		3849
		3850	cf::write_runtime_sync; # external watchdog should not bark
2304	};	3851	};
2305		3852
2306	warn "leave emergency perl save\n";	3853	info "emergency_perl_save: leave\n";
2307	}	3854	}
2308		3855
		3856	sub post_cleanup {
		3857	my ($make_core) = @_;
		3858
		3859	IO::AIO::flush;
		3860
		3861	error Carp::longmess "post_cleanup backtrace"
		3862	if $make_core;
		3863
		3864	my $fh = pidfile;
		3865	unlink $PIDFILE if <$fh> == $$;
		3866	}
		3867
		3868	# a safer delete_package, copied from Symbol
		3869	sub clear_package($) {
		3870	my $pkg = shift;
		3871
		3872	# expand to full symbol table name if needed
		3873	unless ($pkg =~ /^main::.*::$/) {
		3874	$pkg = "main$pkg" if $pkg =~ /^::/;
		3875	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3876	$pkg .= '::' unless $pkg =~ /::$/;
		3877	}
		3878
		3879	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3880	my $stem_symtab = *{$stem}{HASH};
		3881
		3882	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3883	or return;
		3884
		3885	# clear all symbols
		3886	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3887	for my $name (keys %$leaf_symtab) {
		3888	_gv_clear *{"$pkg$name"};
		3889	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3890	}
		3891	}
		3892
2309	sub reload() {	3893	sub do_reload_perl() {
2310	# can/must only be called in main	3894	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	3895	unless (in_main) {
2312	warn "can only reload from main coroutine\n";	3896	error "can only reload from main coroutine";
2313	return;	3897	return;
2314	}	3898	}
2315		3899
2316	warn "reloading...";	3900	return if $RELOAD++;
2317		3901
2318	my $guard = freeze_mainloop;	3902	my $t1 = AE::time;
		3903
		3904	while ($RELOAD) {
		3905	cf::get_slot 0.1, -1, "reload_perl";
		3906	info "perl_reload: reloading...";
		3907
		3908	trace "perl_reload: entering sync_job";
		3909
		3910	cf::sync_job {
2319	cf::emergency_save;	3911	#cf::emergency_save;
2320		3912
2321	eval {	3913	trace "perl_reload: cancelling all extension coros";
2322	# if anything goes wrong in here, we should simply crash as we already saved
2323
2324	# cancel all watchers
2325	for (Event::all_watchers) {
2326	$_->cancel if $_->data & WF_AUTOCANCEL;
2327	}
2328
2329	# cancel all extension coros
2330	$_->cancel for values %EXT_CORO;	3914	$_->cancel for values %EXT_CORO;
2331	%EXT_CORO = ();	3915	%EXT_CORO = ();
2332		3916
2333	# unload all extensions	3917	trace "perl_reload: removing commands";
2334	for (@exts) {	3918	%COMMAND = ();
2335	warn "unloading <$_>";
2336	unload_extension $_;
2337	}
2338		3919
2339	# unload all modules loaded from $LIBDIR	3920	trace "perl_reload: removing ext/exti commands";
2340	while (my ($k, $v) = each %INC) {	3921	%EXTCMD = ();
2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3922	%EXTICMD = ();
2342		3923
2343	warn "removing <$k>";	3924	trace "perl_reload: unloading/nuking all extensions";
2344	delete $INC{$k};	3925	for my $pkg (@EXTS) {
		3926	trace "... unloading $pkg";
2345		3927
2346	$k =~ s/\.pm$//;
2347	$k =~ s/\//::/g;
2348
2349	if (my $cb = $k->can ("unload_module")) {	3928	if (my $cb = $pkg->can ("unload")) {
		3929	eval {
2350	$cb->();	3930	$cb->($pkg);
		3931	1
		3932	} or error "$pkg unloaded, but with errors: $@";
		3933	}
		3934
		3935	trace "... clearing $pkg";
		3936	clear_package $pkg;
2351	}	3937	}
2352		3938
2353	Symbol::delete_package $k;	3939	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3940	while (my ($k, $v) = each %INC) {
		3941	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3942
		3943	trace "... unloading $k";
		3944	delete $INC{$k};
		3945
		3946	$k =~ s/\.pm$//;
		3947	$k =~ s/\//::/g;
		3948
		3949	if (my $cb = $k->can ("unload_module")) {
		3950	$cb->();
		3951	}
		3952
		3953	clear_package $k;
2354	}	3954	}
2355		3955
2356	# sync database to disk
2357	cf::db_sync;
2358	IO::AIO::flush;
2359
2360	# get rid of safe::, as good as possible	3956	trace "perl_reload: getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	3957	clear_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3958	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		3959
2364	# remove register_script_function callbacks	3960	trace "perl_reload: unloading cf.pm \"a bit\"";
2365	# TODO
2366
2367	# unload cf.pm "a bit"
2368	delete $INC{"cf.pm"};	3961	delete $INC{"cf.pm"};
		3962	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2369		3963
2370	# don't, removes xs symbols, too,	3964	# don't, removes xs symbols, too,
2371	# and global variables created in xs	3965	# and global variables created in xs
2372	#Symbol::delete_package __PACKAGE__;	3966	#clear_package __PACKAGE__;
2373		3967
2374	# reload cf.pm	3968	info "perl_reload: unload completed, starting to reload now";
2375	warn "reloading cf.pm";	3969
		3970	trace "perl_reload: reloading cf.pm";
2376	require cf;	3971	require cf;
2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3972	cf::_connect_to_perl_1;
2378		3973
2379	# load config and database again	3974	trace "perl_reload: loading config and database again";
2380	cf::cfg_load;	3975	cf::reload_config;
2381	cf::db_load;
2382		3976
2383	# load extensions	3977	trace "perl_reload: loading extensions";
2384	warn "load extensions";
2385	cf::load_extensions;	3978	cf::load_extensions;
2386		3979
2387	# reattach attachments to objects	3980	if ($REATTACH_ON_RELOAD) {
2388	warn "reattach";	3981	trace "perl_reload: reattaching attachments to objects/players";
2389	_global_reattach;	3982	_global_reattach; # objects, sockets
		3983	trace "perl_reload: reattaching attachments to maps";
2390	reattach $_ for values %MAP;	3984	reattach $_ for values %MAP;
		3985	trace "perl_reload: reattaching attachments to players";
		3986	reattach $_ for values %PLAYER;
		3987	}
		3988
		3989	cf::_post_init 1;
		3990
		3991	trace "perl_reload: leaving sync_job";
		3992
		3993	1
		3994	} or do {
		3995	error $@;
		3996	cf::cleanup "perl_reload: error, exiting.";
		3997	};
		3998
		3999	--$RELOAD;
		4000	}
		4001
		4002	$t1 = AE::time - $t1;
		4003	info "perl_reload: completed in ${t1}s\n";
		4004	};
		4005
		4006	our $RELOAD_WATCHER; # used only during reload
		4007
		4008	sub reload_perl() {
		4009	# doing reload synchronously and two reloads happen back-to-back,
		4010	# coro crashes during coro_state_free->destroy here.
		4011
		4012	$RELOAD_WATCHER ||= cf::async {
		4013	Coro::AIO::aio_wait cache_extensions;
		4014
		4015	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4016	do_reload_perl;
		4017	undef $RELOAD_WATCHER;
		4018	};
2391	};	4019	};
2392
2393	if ($@) {
2394	warn $@;
2395	warn "error while reloading, exiting.";
2396	exit 1;
2397	}
2398
2399	warn "reloaded successfully";
2400	};
2401
2402	#############################################################################
2403
2404	unless ($LINK_MAP) {
2405	$LINK_MAP = cf::map::new;
2406
2407	$LINK_MAP->width (41);
2408	$LINK_MAP->height (41);
2409	$LINK_MAP->alloc;
2410	$LINK_MAP->path ("{link}");
2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2413
2414	# dirty hack because... archetypes are not yet loaded
2415	Event->timer (
2416	after => 10,
2417	cb => sub {
2418	$_[0]->w->cancel;
2419
2420	# provide some exits "home"
2421	my $exit = cf::object::new "exit";
2422
2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2426
2427	$LINK_MAP->insert ($exit->clone, 19, 19);
2428	$LINK_MAP->insert ($exit->clone, 19, 20);
2429	$LINK_MAP->insert ($exit->clone, 19, 21);
2430	$LINK_MAP->insert ($exit->clone, 20, 19);
2431	$LINK_MAP->insert ($exit->clone, 20, 21);
2432	$LINK_MAP->insert ($exit->clone, 21, 19);
2433	$LINK_MAP->insert ($exit->clone, 21, 20);
2434	$LINK_MAP->insert ($exit->clone, 21, 21);
2435
2436	$exit->destroy;
2437	});
2438
2439	$LINK_MAP->{deny_save} = 1;
2440	$LINK_MAP->{deny_reset} = 1;
2441
2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2443	}	4020	}
2444
2445	register "<global>", __PACKAGE__;
2446		4021
2447	register_command "reload" => sub {	4022	register_command "reload" => sub {
2448	my ($who, $arg) = @_;	4023	my ($who, $arg) = @_;
2449		4024
2450	if ($who->flag (FLAG_WIZ)) {	4025	if ($who->flag (FLAG_WIZ)) {
2451	$who->message ("start of reload.");
2452	reload;
2453	$who->message ("end of reload.");	4026	$who->message ("reloading server.");
		4027	async {
		4028	$Coro::current->{desc} = "perl_reload";
		4029	reload_perl;
		4030	};
2454	}	4031	}
2455	};	4032	};
2456		4033
2457	unshift @INC, $LIBDIR;	4034	#############################################################################
2458		4035
2459	$TICK_WATCHER = Event->timer (	4036	my $bug_warning = 0;
2460	reentrant => 0,	4037
2461	prio => 0,	4038	our @WAIT_FOR_TICK;
2462	at => $NEXT_TICK || $TICK,	4039	our @WAIT_FOR_TICK_BEGIN;
2463	data => WF_AUTOCANCEL,	4040
2464	cb => sub {	4041	sub wait_for_tick() {
		4042	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4043
		4044	my $signal = new Coro::Signal;
		4045	push @WAIT_FOR_TICK, $signal;
		4046	$signal->wait;
		4047	}
		4048
		4049	sub wait_for_tick_begin() {
		4050	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4051
		4052	my $signal = new Coro::Signal;
		4053	push @WAIT_FOR_TICK_BEGIN, $signal;
		4054	$signal->wait;
		4055	}
		4056
		4057	sub tick {
		4058	if ($Coro::current != $Coro::main) {
		4059	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4060	unless ++$bug_warning > 10;
		4061	return;
		4062	}
		4063
2465	cf::server_tick; # one server iteration	4064	cf::server_tick; # one server iteration
2466	$RUNTIME += $TICK;
2467	$NEXT_TICK += $TICK;
2468		4065
2469	$WAIT_FOR_TICK->broadcast;	4066	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2471		4067
2472	# if we are delayed by four ticks or more, skip them all	4068	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4069	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2474		4070	Coro::async_pool {
2475	$TICK_WATCHER->at ($NEXT_TICK);	4071	$Coro::current->{desc} = "runtime saver";
2476	$TICK_WATCHER->start;
2477	},
2478	);
2479
2480	IO::AIO::max_poll_time $TICK * 0.2;
2481
2482	Event->io (
2483	fd => IO::AIO::poll_fileno,
2484	poll => 'r',
2485	prio => 5,
2486	data => WF_AUTOCANCEL,
2487	cb => \&IO::AIO::poll_cb,
2488	);
2489
2490	Event->timer (
2491	data => WF_AUTOCANCEL,
2492	after => 0,
2493	interval => 10,
2494	cb => sub {
2495	(Coro::unblock_sub {
2496	write_runtime	4072	write_runtime_sync
2497	or warn "ERROR: unable to write runtime file: $!";	4073	or error "ERROR: unable to write runtime file: $!";
2498	})->();	4074	};
2499	},	4075	}
2500	);	4076
		4077	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4078	$sig->send;
		4079	}
		4080	while (my $sig = shift @WAIT_FOR_TICK) {
		4081	$sig->send;
		4082	}
		4083
		4084	$LOAD = ($NOW - $TICK_START) / $TICK;
		4085	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4086
		4087	if (0) {
		4088	if ($NEXT_TICK) {
		4089	my $jitter = $TICK_START - $NEXT_TICK;
		4090	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4091	debug "jitter $JITTER\n";#d#
		4092	}
		4093	}
		4094	}
		4095
		4096	{
		4097	# configure BDB
		4098
		4099	BDB::min_parallel 16;
		4100	BDB::max_poll_reqs $TICK * 0.1;
		4101	$AnyEvent::BDB::WATCHER->priority (1);
		4102
		4103	unless ($DB_ENV) {
		4104	$DB_ENV = BDB::db_env_create;
		4105	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4106	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4107	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4108	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4109	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4110
		4111	cf::sync_job {
		4112	eval {
		4113	BDB::db_env_open
		4114	$DB_ENV,
		4115	$BDBDIR,
		4116	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4117	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4118	0666;
		4119
		4120	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4121	};
		4122
		4123	cf::cleanup "db_env_open(db): $@" if $@;
		4124	};
		4125	}
		4126
		4127	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4128	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4129	};
		4130	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4131	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4132	};
		4133	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4134	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4135	};
		4136	}
		4137
		4138	{
		4139	# configure IO::AIO
		4140
		4141	IO::AIO::min_parallel 8;
		4142	IO::AIO::max_poll_time $TICK * 0.1;
		4143	undef $AnyEvent::AIO::WATCHER;
		4144	}
		4145
		4146	our $_log_backtrace;
		4147	our $_log_backtrace_last;
		4148
		4149	sub _log_backtrace {
		4150	my ($msg, @addr) = @_;
		4151
		4152	$msg =~ s/\n$//;
		4153
		4154	if ($_log_backtrace_last eq $msg) {
		4155	LOG llevInfo, "[ABT] $msg\n";
		4156	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4157	# limit the # of concurrent backtraces
		4158	} elsif ($_log_backtrace < 2) {
		4159	$_log_backtrace_last = $msg;
		4160	++$_log_backtrace;
		4161	my $perl_bt = Carp::longmess $msg;
		4162	async {
		4163	$Coro::current->{desc} = "abt $msg";
		4164
		4165	my @bt = fork_call {
		4166	@addr = map { sprintf "%x", $_ } @addr;
		4167	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4168	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4169	or die "addr2line: $!";
		4170
		4171	my @funcs;
		4172	my @res = <$fh>;
		4173	chomp for @res;
		4174	while (@res) {
		4175	my ($func, $line) = splice @res, 0, 2, ();
		4176	push @funcs, "[$func] $line";
		4177	}
		4178
		4179	@funcs
		4180	};
		4181
		4182	LOG llevInfo, "[ABT] $perl_bt\n";
		4183	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4184	LOG llevInfo, "[ABT] $_\n" for @bt;
		4185	--$_log_backtrace;
		4186	};
		4187	} else {
		4188	LOG llevInfo, "[ABT] $msg\n";
		4189	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4190	}
		4191	}
		4192
		4193	# load additional modules
		4194	require "cf/$_.pm" for @EXTRA_MODULES;
		4195	cf::_connect_to_perl_2;
2501		4196
2502	END { cf::emergency_save }	4197	END { cf::emergency_save }
2503		4198
2504	1	4199	1
2505		4200

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