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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.479 by root, Thu Oct 8 05:04:27 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
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 ();
		55	use Data::Dumper;
20	use Digest::MD5;	56	use Digest::MD5;
21	use Fcntl;	57	use Fcntl;
		58	use YAML ();
22	use IO::AIO 2.31 ();	59	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
25		63
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
27		65
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		70
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		79
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		81
35	our %COMMAND = ();	82	our %COMMAND = ();
36	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
		84
		85	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
		88	our %EXT_CORO = (); # coroutines bound to extensions
		89	our %EXT_MAP = (); # pluggable maps
38		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	92	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
41		95
42	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	97	our $DATADIR = datadir;
		98	our $LIBDIR = "$DATADIR/ext";
		99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
		111
		112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	114	our $NEXT_TICK;
45	our $NOW;	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
		119	our $BDB_TRICKLE_WATCHER;
		120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
46		123
47	our %CFG;	124	our %CFG;
48		125
49	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
51		129
52	our %MAP; # all maps	130	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	131	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	132	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	133
56	our %EXT_CORO;	134	# used to convert map paths into valid unix filenames by replacing / by ∕
		135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
57		146
58	binmode STDOUT;	147	binmode STDOUT;
59	binmode STDERR;	148	binmode STDERR;
60		149
61	# read virtual server time, if available	150	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
66	}	155	}
67		156
68	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		158
74	# a special map that is always available	159	mkdir $_
75	our $LINK_MAP;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		161
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	162	our $EMERGENCY_POSITION;
		163
		164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
78		173
79	#############################################################################	174	#############################################################################
80		175
81	=head2 GLOBAL VARIABLES	176	=head2 GLOBAL VARIABLES
82		177
…		…
89	=item $cf::RUNTIME	184	=item $cf::RUNTIME
90		185
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	186	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	187	every server tick.
93		188
94	=item $cf::LIBDIR	189	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		190	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		191	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		192
96	The perl library directory, where extensions and cf-specific modules can	193	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	194	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		195	unique-items directory, player file directory, random maps directory and
		196	database environment.
98		197
99	=item $cf::NOW	198	=item $cf::NOW
100		199
101	The time of the last (current) server tick.	200	The time of the last (current) server tick.
102		201
103	=item $cf::TICK	202	=item $cf::TICK
104		203
105	The interval between server ticks, in seconds.	204	The interval between server ticks, in seconds.
106		205
		206	=item $cf::LOADAVG
		207
		208	The current CPU load on the server (alpha-smoothed), as a value between 0
		209	(none) and 1 (overloaded), indicating how much time is spent on processing
		210	objects per tick. Healthy values are < 0.5.
		211
		212	=item $cf::LOAD
		213
		214	The raw value load value from the last tick.
		215
107	=item %cf::CFG	216	=item %cf::CFG
108		217
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	218	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	219	from wherever your confdir points to.
111		220
		221	=item cf::wait_for_tick, cf::wait_for_tick_begin
		222
		223	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		224	returns directly I<after> the tick processing (and consequently, can only wake one process
		225	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		226
		227	=item @cf::INVOKE_RESULTS
		228
		229	This array contains the results of the last C<invoke ()> call. When
		230	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		231	that call.
		232
		233	=item %cf::REFLECT
		234
		235	Contains, for each (C++) class name, a hash reference with information
		236	about object members (methods, scalars and arrays) and other metadata,
		237	which is useful for introspection.
		238
112	=back	239	=back
113		240
114	=cut	241	=cut
115		242
116	BEGIN {	243	$Coro::State::WARNHOOK = sub {
117	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	244	my $msg = join "", @_;
119	utf8::encode $msg;
120		245
121	$msg .= "\n"	246	$msg .= "\n"
122	unless $msg =~ /\n$/;	247	unless $msg =~ /\n$/;
123		248
		249	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		250
124	LOG llevError, "cfperl: $msg";	251	LOG llevError, $msg;
125	};	252	};
126	}	253
		254	$Coro::State::DIEHOOK = sub {
		255	return unless $^S eq 0; # "eq", not "=="
		256
		257	warn Carp::longmess $_[0];
		258
		259	if ($Coro::current == $Coro::main) {#d#
		260	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		261	return;#d#
		262	}#d#
		263
		264	# kill coroutine otherwise
		265	Coro::terminate
		266	};
127		267
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	268	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	269	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	270	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	271	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	272	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		273	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	274	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		275
135	# we bless all objects into (empty) derived classes to force a method lookup	276	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	277	# within the Safe compartment.
137	for my $pkg (qw(	278	for my $pkg (qw(
138	cf::global cf::attachable	279	cf::global cf::attachable
139	cf::object cf::object::player	280	cf::object cf::object::player
140	cf::client cf::player	281	cf::client cf::player
141	cf::arch cf::living	282	cf::arch cf::living
		283	cf::map cf::mapspace
142	cf::map cf::party cf::region	284	cf::party cf::region
143	)) {	285	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	286	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	287	}
147		288
148	$Event::DIED = sub {	289	$EV::DIED = sub {
149	warn "error in event callback: @_";	290	warn "error in event callback: @_";
150	};	291	};
151		292
152	my %ext_pkg;	293	#############################################################################
153	my @exts;
154	my @hook;
155		294
156	=head2 UTILITY FUNCTIONS	295	=head2 UTILITY FUNCTIONS
157		296
158	=over 4	297	=over 4
159		298
160	=cut	299	=item dumpval $ref
161		300
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	301	=cut
163		302
		303	sub dumpval {
		304	eval {
		305	local $SIG{__DIE__};
		306	my $d;
		307	if (1) {
		308	$d = new Data::Dumper([$_[0]], ["*var"]);
		309	$d->Terse(1);
		310	$d->Indent(2);
		311	$d->Quotekeys(0);
		312	$d->Useqq(1);
		313	#$d->Bless(...);
		314	$d->Seen($_[1]) if @_ > 1;
		315	$d = $d->Dump();
		316	}
		317	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		318	$d
		319	} || "[unable to dump $_[0]: '$@']";
		320	}
		321
164	=item $ref = cf::from_json $json	322	=item $ref = cf::decode_json $json
165		323
166	Converts a JSON string into the corresponding perl data structure.	324	Converts a JSON string into the corresponding perl data structure.
167		325
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	326	=item $json = cf::encode_json $ref
176		327
177	Converts a perl data structure into its JSON representation.	328	Converts a perl data structure into its JSON representation.
178		329
179	=cut	330	=cut
180		331
181	sub to_json($) {	332	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		333
186	=item my $guard = cf::guard { BLOCK }	334	sub encode_json($) { $json_coder->encode ($_[0]) }
		335	sub decode_json($) { $json_coder->decode ($_[0]) }
187		336
188	Run the given callback when the guard object gets destroyed (useful for	337	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		338
191	You can call C<< ->cancel >> on the guard object to stop the block from	339	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	340	but I<before> the server starts ticking again.
193		341
194	=cut	342	The cdoeblock will have a single boolean argument to indicate whether this
		343	is a reload or not.
195		344
196	sub guard(&) {	345	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		346
200	sub cf::guard::cancel {	347	sub post_init(&) {
201	${$_[0]} = sub { };	348	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	349	}
207		350
208	=item cf::lock_wait $string	351	=item cf::lock_wait $string
209		352
210	Wait until the given lock is available. See cf::lock_acquire.	353	Wait until the given lock is available. See cf::lock_acquire.
211		354
212	=item my $lock = cf::lock_acquire $string	355	=item my $lock = cf::lock_acquire $string
213		356
214	Wait until the given lock is available and then acquires it and returns	357	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	358	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	359	for example when the coroutine gets canceled), the lock is automatically
217	returned.	360	returned.
218		361
		362	Locks are *not* recursive, locking from the same coro twice results in a
		363	deadlocked coro.
		364
219	Lock names should begin with a unique identifier (for example, find_map	365	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	366	uses map_find and cf::map::load uses map_load).
221		367
222	=cut	368	=item $locked = cf::lock_active $string
223		369
224	our %LOCK;	370	Return true if the lock is currently active, i.e. somebody has locked it.
		371
		372	=cut
		373
		374	our $LOCKS = new Coro::SemaphoreSet;
225		375
226	sub lock_wait($) {	376	sub lock_wait($) {
227	my ($key) = @_;	377	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	378	}
235		379
236	sub lock_acquire($) {	380	sub lock_acquire($) {
237	my ($key) = @_;	381	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	382	}
		383
		384	sub lock_active($) {
		385	$LOCKS->count ($_[0]) < 1
		386	}
		387
		388	sub freeze_mainloop {
		389	tick_inhibit_inc;
		390
		391	&Guard::guard (\&tick_inhibit_dec);
		392	}
		393
		394	=item cf::periodic $interval, $cb
		395
		396	Like EV::periodic, but randomly selects a starting point so that the actions
		397	get spread over timer.
		398
		399	=cut
		400
		401	sub periodic($$) {
		402	my ($interval, $cb) = @_;
		403
		404	my $start = rand List::Util::min 180, $interval;
		405
		406	EV::periodic $start, $interval, 0, $cb
		407	}
		408
		409	=item cf::get_slot $time[, $priority[, $name]]
		410
		411	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		412	This call blocks and returns only when you have at least C<$time> seconds
		413	of cpu time till the next tick. The slot is only valid till the next cede.
		414
		415	The optional C<$name> can be used to identify the job to run. It might be
		416	used for statistical purposes and should identify the same time-class.
		417
		418	Useful for short background jobs.
		419
		420	=cut
		421
		422	our @SLOT_QUEUE;
		423	our $SLOT_QUEUE;
		424
		425	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		426	$SLOT_QUEUE = Coro::async {
		427	$Coro::current->desc ("timeslot manager");
		428
		429	my $signal = new Coro::Signal;
		430
		431	while () {
		432	next_job:
		433	my $avail = cf::till_tick;
		434	if ($avail > 0.01) {
		435	for (0 .. $#SLOT_QUEUE) {
		436	if ($SLOT_QUEUE[$_][0] < $avail) {
		437	my $job = splice @SLOT_QUEUE, $_, 1, ();
		438	$job->[2]->send;
		439	Coro::cede;
		440	goto next_job;
		441	}
		442	}
		443	}
		444
		445	if (@SLOT_QUEUE) {
		446	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		447	push @cf::WAIT_FOR_TICK, $signal;
		448	$signal->wait;
		449	} else {
		450	Coro::schedule;
		451	}
		452	}
		453	};
		454
		455	sub get_slot($;$$) {
		456	return if tick_inhibit || $Coro::current == $Coro::main;
		457
		458	my ($time, $pri, $name) = @_;
		459
		460	$time = $TICK * .6 if $time > $TICK * .6;
		461	my $sig = new Coro::Signal;
		462
		463	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		464	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		465	$SLOT_QUEUE->ready;
		466	$sig->wait;
		467	}
		468
		469	=item cf::async { BLOCK }
		470
		471	Currently the same as Coro::async_pool, meaning you cannot use
		472	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		473	thing you are allowed to do is call C<prio> on it.
		474
		475	=cut
		476
		477	BEGIN { *async = \&Coro::async_pool }
249		478
250	=item cf::sync_job { BLOCK }	479	=item cf::sync_job { BLOCK }
251		480
252	The design of crossfire+ requires that the main coro ($Coro::main) is	481	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	482	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	483	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		484	acceptable.
255		485
256	If it must be done, put the blocking parts into C<sync_job>. This will run	486	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	487	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	488	server will be frozen during this time, so the block should either finish
259	fast or be very important.	489	fast or be very important.
…		…
262		492
263	sub sync_job(&) {	493	sub sync_job(&) {
264	my ($job) = @_;	494	my ($job) = @_;
265		495
266	if ($Coro::current == $Coro::main) {	496	if ($Coro::current == $Coro::main) {
		497	my $time = EV::time;
		498
267	# this is the main coro, too bad, we have to block	499	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	500	# till the operation succeeds, freezing the server :/
269		501
270	# TODO: use suspend/resume instead	502	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	503
272	local $FREEZE = 1;	504	my $freeze_guard = freeze_mainloop;
273		505
274	my $busy = 1;	506	my $busy = 1;
275	my @res;	507	my @res;
276		508
277	(Coro::async {	509	(async {
		510	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	511	@res = eval { $job->() };
279	warn $@ if $@;	512	warn $@ if $@;
280	undef $busy;	513	undef $busy;
281	})->prio (Coro::PRIO_MAX);	514	})->prio (Coro::PRIO_MAX);
282		515
283	while ($busy) {	516	while ($busy) {
		517	if (Coro::nready) {
284	Coro::cede_notself;	518	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	519	} else {
		520	EV::loop EV::LOOP_ONESHOT;
286	}	521	}
		522	}
		523
		524	my $time = EV::time - $time;
		525
		526	$TICK_START += $time; # do not account sync jobs to server load
287		527
288	wantarray ? @res : $res[0]	528	wantarray ? @res : $res[0]
289	} else {	529	} else {
290	# we are in another coroutine, how wonderful, everything just works	530	# we are in another coroutine, how wonderful, everything just works
291		531
292	$job->()	532	$job->()
293	}	533	}
294	}	534	}
295		535
296	=item $coro = cf::coro { BLOCK }	536	=item $coro = cf::async_ext { BLOCK }
297		537
298	Creates and returns a new coro. This coro is automcatially being canceled	538	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	539	extension calling this is being unloaded.
300		540
301	=cut	541	=cut
302		542
303	sub coro(&) {	543	sub async_ext(&) {
304	my $cb = shift;	544	my $cb = shift;
305		545
306	my $coro; $coro = async {	546	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		547
313	$coro->on_destroy (sub {	548	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	549	delete $EXT_CORO{$coro+0};
315	});	550	});
316	$EXT_CORO{$coro+0} = $coro;	551	$EXT_CORO{$coro+0} = $coro;
317		552
318	$coro	553	$coro
319	}	554	}
320		555
321	sub write_runtime {	556	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		557
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	558	Executes the given code block with the given arguments in a seperate
325	or return;	559	process, returning the results. Everything must be serialisable with
		560	Coro::Storable. May, of course, block. Note that the executed sub may
		561	never block itself or use any form of event handling.
326		562
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	563	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		564
331	aio_fsync $fh	565	sub fork_call(&@) {
332	and return;	566	my ($cb, @args) = @_;
333		567
334	close $fh	568	# we seemingly have to make a local copy of the whole thing,
335	or return;	569	# otherwise perl prematurely frees the stuff :/
		570	# TODO: investigate and fix (likely this will be rather laborious)
336		571
337	aio_rename "$runtime~", $runtime	572	my @res = Coro::Util::fork_eval {
338	and return;	573	reset_signals;
		574	&$cb
		575	}, @args;
339		576
		577	wantarray ? @res : $res[-1]
		578	}
		579
		580	=item $coin = coin_from_name $name
		581
		582	=cut
		583
		584	our %coin_alias = (
		585	"silver" => "silvercoin",
		586	"silvercoin" => "silvercoin",
		587	"silvercoins" => "silvercoin",
		588	"gold" => "goldcoin",
		589	"goldcoin" => "goldcoin",
		590	"goldcoins" => "goldcoin",
		591	"platinum" => "platinacoin",
		592	"platinumcoin" => "platinacoin",
		593	"platinumcoins" => "platinacoin",
		594	"platina" => "platinacoin",
		595	"platinacoin" => "platinacoin",
		596	"platinacoins" => "platinacoin",
		597	"royalty" => "royalty",
		598	"royalties" => "royalty",
		599	);
		600
		601	sub coin_from_name($) {
		602	$coin_alias{$_[0]}
		603	? cf::arch::find $coin_alias{$_[0]}
		604	: undef
		605	}
		606
		607	=item $value = cf::db_get $family => $key
		608
		609	Returns a single value from the environment database.
		610
		611	=item cf::db_put $family => $key => $value
		612
		613	Stores the given C<$value> in the family. It can currently store binary
		614	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		615
		616	=item $db = cf::db_table "name"
		617
		618	Create and/or open a new database table. The string must not be "db" and must be unique
		619	within each server.
		620
		621	=cut
		622
		623	sub db_table($) {
		624	my ($name) = @_;
		625	my $db = BDB::db_create $DB_ENV;
		626
		627	eval {
		628	$db->set_flags (BDB::CHKSUM);
		629
		630	utf8::encode $name;
		631	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		632	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		633	cf::cleanup "db_open(db): $!" if $!;
		634	};
		635	cf::cleanup "db_open(db): $@" if $@;
		636
		637	$db
		638	}
		639
		640	our $DB;
		641
		642	sub db_init {
		643	cf::sync_job {
		644	$DB ||= db_table "db";
		645	};
		646	}
		647
		648	sub db_get($$) {
		649	my $key = "$_[0]/$_[1]";
		650
		651	cf::sync_job {
		652	BDB::db_get $DB, undef, $key, my $data;
		653
		654	$! ? ()
		655	: $data
340	1	656	}
		657	}
		658
		659	sub db_put($$$) {
		660	BDB::dbreq_pri 4;
		661	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		662	}
		663
		664	=item cf::cache $id => [$paths...], $processversion => $process
		665
		666	Generic caching function that returns the value of the resource $id,
		667	caching and regenerating as required.
		668
		669	This function can block.
		670
		671	=cut
		672
		673	sub cache {
		674	my ($id, $src, $processversion, $process) = @_;
		675
		676	my $meta =
		677	join "\x00",
		678	$processversion,
		679	map {
		680	aio_stat $_
		681	and Carp::croak "$_: $!";
		682
		683	($_, (stat _)[7,9])
		684	} @$src;
		685
		686	my $dbmeta = db_get cache => "$id/meta";
		687	if ($dbmeta ne $meta) {
		688	# changed, we may need to process
		689
		690	my @data;
		691	my $md5;
		692
		693	for (0 .. $#$src) {
		694	0 <= aio_load $src->[$_], $data[$_]
		695	or Carp::croak "$src->[$_]: $!";
		696	}
		697
		698	# if processing is expensive, check
		699	# checksum first
		700	if (1) {
		701	$md5 =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	cf::cede_to_tick;
		706	($src->[$_], Digest::MD5::md5_hex $data[$_])
		707	} 0.. $#$src;
		708
		709
		710	my $dbmd5 = db_get cache => "$id/md5";
		711	if ($dbmd5 eq $md5) {
		712	db_put cache => "$id/meta", $meta;
		713
		714	return db_get cache => "$id/data";
		715	}
		716	}
		717
		718	my $t1 = Time::HiRes::time;
		719	my $data = $process->(\@data);
		720	my $t2 = Time::HiRes::time;
		721
		722	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		723
		724	db_put cache => "$id/data", $data;
		725	db_put cache => "$id/md5" , $md5;
		726	db_put cache => "$id/meta", $meta;
		727
		728	return $data;
		729	}
		730
		731	db_get cache => "$id/data"
		732	}
		733
		734	=item cf::datalog type => key => value, ...
		735
		736	Log a datalog packet of the given type with the given key-value pairs.
		737
		738	=cut
		739
		740	sub datalog($@) {
		741	my ($type, %kv) = @_;
		742	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	743	}
342		744
343	=back	745	=back
344		746
345	=cut	747	=cut
346		748
347	#############################################################################	749	#############################################################################
348		750
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	751	=head2 ATTACHABLE OBJECTS
470		752
471	Many objects in crossfire are so-called attachable objects. That means you can	753	Many objects in deliantra are so-called attachable objects. That means you can
472	attach callbacks/event handlers (a collection of which is called an "attachment")	754	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	755	to it. All such attachable objects support the following methods.
474		756
475	In the following description, CLASS can be any of C<global>, C<object>	757	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	758	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	759	Deliantra).
478		760
479	=over 4	761	=over 4
480		762
481	=item $attachable->attach ($attachment, key => $value...)	763	=item $attachable->attach ($attachment, key => $value...)
482		764
…		…
526	=item cf::CLASS::attachment $name, ...	808	=item cf::CLASS::attachment $name, ...
527		809
528	Register an attachment by C<$name> through which attachable objects of the	810	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	811	given CLASS can refer to this attachment.
530		812
531	Some classes such as crossfire maps and objects can specify attachments	813	Some classes such as deliantra maps and objects can specify attachments
532	that are attached at load/instantiate time, thus the need for a name.	814	that are attached at load/instantiate time, thus the need for a name.
533		815
534	These calls expect any number of the following handler/hook descriptions:	816	These calls expect any number of the following handler/hook descriptions:
535		817
536	=over 4	818	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	878	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	879	our @CB_MAP = ();
598		880
599	my %attachment;	881	my %attachment;
600		882
		883	sub cf::attachable::thawer_merge {
		884	# simply override everything except _meta
		885	local $_[0]{_meta};
		886	%{$_[0]} = %{$_[1]};
		887	}
		888
601	sub _attach_cb($$$$) {	889	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	890	my ($registry, $event, $prio, $cb) = @_;
603		891
604	use sort 'stable';	892	use sort 'stable';
605		893
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	927	$registry = $CB_TYPE[$object_type] ||= [];
640		928
641	} elsif ($type eq "subtype") {	929	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	930	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	931	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	932	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		933
646	} elsif ($type eq "package") {	934	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	935	my $pkg = shift @arg;
648		936
649	while (my ($name, $id) = each %cb_id) {	937	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	966	_attach $registry, $klass, @attach;
679	}	967	}
680		968
681	$obj->{$name} = \%arg;	969	$obj->{$name} = \%arg;
682	} else {	970	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	971	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	972	}
685		973
686	$obj->{_attachment}{$name} = undef;	974	$obj->{_attachment}{$name} = undef;
687	}	975	}
688		976
…		…
690	if (ref $_[0]) {	978	if (ref $_[0]) {
691	_object_attach @_;	979	_object_attach @_;
692	} else {	980	} else {
693	_attach shift->_attach_registry, @_;	981	_attach shift->_attach_registry, @_;
694	}	982	}
		983	_recalc_want;
695	};	984	};
696		985
697	# all those should be optimised	986	# all those should be optimised
698	sub cf::attachable::detach {	987	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	988	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	991	delete $obj->{_attachment}{$name};
703	reattach ($obj);	992	reattach ($obj);
704	} else {	993	} else {
705	Carp::croak "cannot, currently, detach class attachments";	994	Carp::croak "cannot, currently, detach class attachments";
706	}	995	}
		996	_recalc_want;
707	};	997	};
708		998
709	sub cf::attachable::attached {	999	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1000	my ($obj, $name) = @_;
711		1001
…		…
726	";	1016	";
727	die if $@;	1017	die if $@;
728	}	1018	}
729		1019
730	our $override;	1020	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1021	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		1022
733	sub override {	1023	sub override {
734	$override = 1;	1024	$override = 1;
735	@invoke_results = ();	1025	@INVOKE_RESULTS = (@_);
736	}	1026	}
737		1027
738	sub do_invoke {	1028	sub do_invoke {
739	my $event = shift;	1029	my $event = shift;
740	my $callbacks = shift;	1030	my $callbacks = shift;
741		1031
742	@invoke_results = ();	1032	@INVOKE_RESULTS = ();
743		1033
744	local $override;	1034	local $override;
745		1035
746	for (@$callbacks) {	1036	for (@$callbacks) {
747	eval { &{$_->[1]} };	1037	eval { &{$_->[1]} };
…		…
756	}	1046	}
757		1047
758	0	1048	0
759	}	1049	}
760		1050
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1051	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1052
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1054
765	Generate an object-specific event with the given arguments.	1055	Generate an object-specific event with the given arguments.
766		1056
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1057	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	1058	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	1059	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1060
771	=back	1061	=back
772		1062
773	=cut	1063	=cut
774		1064
775	#############################################################################	1065	#############################################################################
776	# object support	1066	# object support
		1067
		1068	sub _object_equal($$);
		1069	sub _object_equal($$) {
		1070	my ($a, $b) = @_;
		1071
		1072	return 0 unless (ref $a) eq (ref $b);
		1073
		1074	if ("HASH" eq ref $a) {
		1075	my @ka = keys %$a;
		1076	my @kb = keys %$b;
		1077
		1078	return 0 if @ka != @kb;
		1079
		1080	for (0 .. $#ka) {
		1081	return 0 unless $ka[$_] eq $kb[$_];
		1082	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1083	}
		1084
		1085	} elsif ("ARRAY" eq ref $a) {
		1086
		1087	return 0 if @$a != @$b;
		1088
		1089	for (0 .. $#$a) {
		1090	return 0 unless _object_equal $a->[$_], $b->[$_];
		1091	}
		1092
		1093	} elsif ($a ne $b) {
		1094	return 0;
		1095	}
		1096
		1097	1
		1098	}
		1099
		1100	our $SLOW_MERGES;#d#
		1101	sub _can_merge {
		1102	my ($ob1, $ob2) = @_;
		1103
		1104	++$SLOW_MERGES;#d#
		1105
		1106	# we do the slow way here
		1107	return _object_equal $ob1, $ob2
		1108	}
777		1109
778	sub reattach {	1110	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1111	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1112	my ($obj) = @_;
		1113
		1114	# no longer needed after getting rid of delete_package?
		1115	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1116
782	my $registry = $obj->registry;	1117	my $registry = $obj->registry;
783		1118
784	@$registry = ();	1119	@$registry = ();
785		1120
…		…
800	cf::attachable->attach (	1135	cf::attachable->attach (
801	prio => -1000000,	1136	prio => -1000000,
802	on_instantiate => sub {	1137	on_instantiate => sub {
803	my ($obj, $data) = @_;	1138	my ($obj, $data) = @_;
804		1139
805	$data = from_json $data;	1140	$data = decode_json $data;
806		1141
807	for (@$data) {	1142	for (@$data) {
808	my ($name, $args) = @$_;	1143	my ($name, $args) = @$_;
809		1144
810	$obj->attach ($name, %{$args || {} });	1145	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1161	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1162	my ($filename, $rdata, $objs) = @_;
828		1163
829	sync_job {	1164	sync_job {
830	if (length $$rdata) {	1165	if (length $$rdata) {
		1166	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1167	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1168	$decname, length $$rdata, scalar @$objs;
833		1169
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1170	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1171	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1172	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1173	if ($cf::USE_FSYNC) {
		1174	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
837	aio_fsync $fh;	1175	aio_fsync $fh;
		1176	}
838	close $fh;	1177	aio_close $fh;
839		1178
840	if (@$objs) {	1179	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1180	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1181	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1182	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1183	aio_write $fh, 0, (length $data), $data, 0;
		1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
845	aio_fsync $fh;	1186	aio_fsync $fh;
		1187	}
846	close $fh;	1188	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1189	aio_rename "$filename.pst~", "$filename.pst";
848	}	1190	}
849	} else {	1191	} else {
850	aio_unlink "$filename.pst";	1192	aio_unlink "$filename.pst";
851	}	1193	}
852		1194
853	aio_rename "$filename~", $filename;	1195	aio_rename "$filename~", $filename;
		1196
		1197	$filename =~ s%/[^/]+$%%;
		1198	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1199	} else {
855	warn "FATAL: $filename~: $!\n";	1200	warn "unable to save objects: $filename~: $!\n";
856	}	1201	}
857	} else {	1202	} else {
858	aio_unlink $filename;	1203	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1204	aio_unlink "$filename.pst";
860	}	1205	}
861	}	1206	};
862	}	1207	}
863		1208
864	sub object_freezer_as_string {	1209	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1210	my ($rdata, $objs) = @_;
866		1211
…		…
878	or return;	1223	or return;
879		1224
880	unless (aio_stat "$filename.pst") {	1225	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1226	(aio_load "$filename.pst", $av) >= 0
882	or return;	1227	or return;
		1228
883	$av = eval { (Storable::thaw $av)->{objs} };	1229	my $st = eval { Coro::Storable::thaw $av };
		1230	$av = $st->{objs};
884	}	1231	}
885		1232
		1233	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1234	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1235	$decname, length $data, scalar @{$av || []};
		1236
888	return ($data, $av);	1237	($data, $av)
889	}	1238	}
		1239
		1240	=head2 COMMAND CALLBACKS
		1241
		1242	=over 4
		1243
		1244	=cut
890		1245
891	#############################################################################	1246	#############################################################################
892	# command handling &c	1247	# command handling &c
893		1248
894	=item cf::register_command $name => \&callback($ob,$args);	1249	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1262	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1263	}
909		1264
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1265	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1266
912	Register a callbackf ro execution when the client sends an extcmd packet.	1267	Register a callback for execution when the client sends an (synchronous)
		1268	extcmd packet. Ext commands will be processed in the order they are
		1269	received by the server, like other user commands. The first argument is
		1270	the logged-in player. Ext commands can only be processed after a player
		1271	has logged in successfully.
913		1272
914	If the callback returns something, it is sent back as if reply was being	1273	If the callback returns something, it is sent back as if reply was being
915	called.	1274	called.
916		1275
		1276	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1277
		1278	Register a callback for execution when the client sends an (asynchronous)
		1279	exticmd packet. Exti commands are processed by the server as soon as they
		1280	are received, i.e. out of order w.r.t. other commands. The first argument
		1281	is a client socket. Exti commands can be received anytime, even before
		1282	log-in.
		1283
		1284	If the callback returns something, it is sent back as if reply was being
		1285	called.
		1286
917	=cut	1287	=cut
918		1288
919	sub register_extcmd {	1289	sub register_extcmd {
920	my ($name, $cb) = @_;	1290	my ($name, $cb) = @_;
921		1291
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1292	$EXTCMD{$name} = $cb;
926	}	1293	}
		1294
		1295	sub register_exticmd {
		1296	my ($name, $cb) = @_;
		1297
		1298	$EXTICMD{$name} = $cb;
		1299	}
		1300
		1301	use File::Glob ();
927		1302
928	cf::player->attach (	1303	cf::player->attach (
929	on_command => sub {	1304	on_command => sub {
930	my ($pl, $name, $params) = @_;	1305	my ($pl, $name, $params) = @_;
931		1306
…		…
939	cf::override;	1314	cf::override;
940	},	1315	},
941	on_extcmd => sub {	1316	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1317	my ($pl, $buf) = @_;
943		1318
944	my $msg = eval { from_json $buf };	1319	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1320
946	if (ref $msg) {	1321	if (ref $msg) {
		1322	my ($type, $reply, @payload) =
		1323	"ARRAY" eq ref $msg
		1324	? @$msg
		1325	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1326
		1327	my @reply;
		1328
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1329	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1330	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1331	}
		1332
		1333	$pl->ext_reply ($reply, @reply)
		1334	if $reply;
		1335
952	} else {	1336	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1337	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1338	}
955		1339
956	cf::override;	1340	cf::override;
957	},	1341	},
958	);	1342	);
959		1343
960	sub register {	1344	# "readahead" all extensions
961	my ($base, $pkg) = @_;	1345	sub cache_extensions {
		1346	my $grp = IO::AIO::aio_group;
962		1347
963	#TODO	1348	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
964	}	1349	for (grep /\.ext$/, @{$_[0]}) {
		1350	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1351	}
		1352	};
965		1353
		1354	$grp
		1355	}
		1356
966	sub load_extension {	1357	sub load_extensions {
		1358	cf::sync_job {
		1359	my %todo;
		1360
		1361	for my $path (<$LIBDIR/*.ext>) {
		1362	next unless -r $path;
		1363
		1364	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1365	my $base = $1;
		1366	my $pkg = $1;
		1367	$pkg =~ s/[^[:word:]]/_/g;
		1368	$pkg = "ext::$pkg";
		1369
		1370	open my $fh, "<:utf8", $path
		1371	or die "$path: $!";
		1372
		1373	my $source = do { local $/; <$fh> };
		1374
		1375	my %ext = (
		1376	path => $path,
		1377	base => $base,
		1378	pkg => $pkg,
		1379	);
		1380
		1381	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1382	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1383
		1384	$ext{source} =
		1385	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1386	. "#line 1 \"$path\"\n{\n"
		1387	. $source
		1388	. "\n};\n1";
		1389
		1390	$todo{$base} = \%ext;
		1391	}
		1392
		1393	my %done;
		1394	while (%todo) {
		1395	my $progress;
		1396
		1397	while (my ($k, $v) = each %todo) {
		1398	for (split /,\s*/, $v->{meta}{depends}) {
		1399	goto skip
		1400	unless exists $done{$_};
		1401	}
		1402
		1403	warn "... loading '$k' into '$v->{pkg}'\n";
		1404
		1405	unless (eval $v->{source}) {
		1406	my $msg = $@ ? "$v->{path}: $@\n"
		1407	: "$v->{base}: extension inactive.\n";
		1408
		1409	if (exists $v->{meta}{mandatory}) {
		1410	warn $msg;
		1411	cf::cleanup "mandatory extension failed to load, exiting.";
		1412	}
		1413
		1414	warn $msg;
		1415	}
		1416
		1417	$done{$k} = delete $todo{$k};
		1418	push @EXTS, $v->{pkg};
		1419	$progress = 1;
		1420	}
		1421
		1422	skip:
		1423	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1424	unless $progress;
		1425	}
		1426	};
		1427	}
		1428
		1429	#############################################################################
		1430
		1431	=back
		1432
		1433	=head2 CORE EXTENSIONS
		1434
		1435	Functions and methods that extend core deliantra objects.
		1436
		1437	=cut
		1438
		1439	package cf::player;
		1440
		1441	use Coro::AIO;
		1442
		1443	=head3 cf::player
		1444
		1445	=over 4
		1446
		1447	=item cf::player::num_playing
		1448
		1449	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1450
		1451	=cut
		1452
		1453	sub num_playing {
		1454	scalar grep
		1455	$_->ob->map
		1456	&& !$_->hidden
		1457	&& !$_->ob->flag (cf::FLAG_WIZ),
		1458	cf::player::list
		1459	}
		1460
		1461	=item cf::player::find $login
		1462
		1463	Returns the given player object, loading it if necessary (might block).
		1464
		1465	=cut
		1466
		1467	sub playerdir($) {
		1468	"$PLAYERDIR/"
		1469	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1470	}
		1471
		1472	sub path($) {
		1473	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1474
		1475	(playerdir $login) . "/playerdata"
		1476	}
		1477
		1478	sub find_active($) {
		1479	$cf::PLAYER{$_[0]}
		1480	and $cf::PLAYER{$_[0]}->active
		1481	and $cf::PLAYER{$_[0]}
		1482	}
		1483
		1484	sub exists($) {
		1485	my ($login) = @_;
		1486
		1487	$cf::PLAYER{$login}
		1488	or !aio_stat path $login
		1489	}
		1490
		1491	sub find($) {
		1492	return $cf::PLAYER{$_[0]} || do {
		1493	my $login = $_[0];
		1494
		1495	my $guard = cf::lock_acquire "user_find:$login";
		1496
		1497	$cf::PLAYER{$_[0]} || do {
		1498	# rename old playerfiles to new ones
		1499	#TODO: remove when no longer required
		1500	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1501	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1502	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1503	aio_unlink +(playerdir $login) . "/$login.pl";
		1504
		1505	my $f = new_from_file cf::object::thawer path $login
		1506	or return;
		1507
		1508	my $pl = cf::player::load_pl $f
		1509	or return;
		1510
		1511	local $cf::PLAYER_LOADING{$login} = $pl;
		1512	$f->resolve_delayed_derefs;
		1513	$cf::PLAYER{$login} = $pl
		1514	}
		1515	}
		1516	}
		1517
		1518	sub save($) {
		1519	my ($pl) = @_;
		1520
		1521	return if $pl->{deny_save};
		1522
		1523	my $path = path $pl;
		1524	my $guard = cf::lock_acquire "user_save:$path";
		1525
		1526	return if $pl->{deny_save};
		1527
		1528	aio_mkdir playerdir $pl, 0770;
		1529	$pl->{last_save} = $cf::RUNTIME;
		1530
		1531	cf::get_slot 0.01;
		1532
		1533	$pl->save_pl ($path);
		1534	cf::cede_to_tick;
		1535	}
		1536
		1537	sub new($) {
		1538	my ($login) = @_;
		1539
		1540	my $self = create;
		1541
		1542	$self->ob->name ($login);
		1543	$self->{deny_save} = 1;
		1544
		1545	$cf::PLAYER{$login} = $self;
		1546
		1547	$self
		1548	}
		1549
		1550	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1551
		1552	=cut
		1553
		1554	sub send_msg {
		1555	my $ns = shift->ns
		1556	or return;
		1557	$ns->send_msg (@_);
		1558	}
		1559
		1560	=item $pl->quit_character
		1561
		1562	Nukes the player without looking back. If logged in, the connection will
		1563	be destroyed. May block for a long time.
		1564
		1565	=cut
		1566
		1567	sub quit_character {
		1568	my ($pl) = @_;
		1569
		1570	my $name = $pl->ob->name;
		1571
		1572	$pl->{deny_save} = 1;
		1573	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1574
		1575	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1576	$pl->deactivate;
		1577	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1578	$pl->ob->check_score;
		1579	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1580	$pl->ns->destroy if $pl->ns;
		1581
		1582	my $path = playerdir $pl;
		1583	my $temp = "$path~$cf::RUNTIME~deleting~";
		1584	aio_rename $path, $temp;
		1585	delete $cf::PLAYER{$pl->ob->name};
		1586	$pl->destroy;
		1587
		1588	my $prefix = qr<^~\Q$name\E/>;
		1589
		1590	# nuke player maps
		1591	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1592
		1593	IO::AIO::aio_rmtree $temp;
		1594	}
		1595
		1596	=item $pl->kick
		1597
		1598	Kicks a player out of the game. This destroys the connection.
		1599
		1600	=cut
		1601
		1602	sub kick {
		1603	my ($pl, $kicker) = @_;
		1604
		1605	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1606	$pl->killer ("kicked");
		1607	$pl->ns->destroy;
		1608	}
		1609
		1610	=item cf::player::list_logins
		1611
		1612	Returns am arrayref of all valid playernames in the system, can take a
		1613	while and may block, so not sync_job-capable, ever.
		1614
		1615	=cut
		1616
		1617	sub list_logins {
		1618	my $dirs = aio_readdir $PLAYERDIR
		1619	or return [];
		1620
		1621	my @logins;
		1622
		1623	for my $login (@$dirs) {
		1624	my $path = path $login;
		1625
		1626	# a .pst is a dead give-away for a valid player
		1627	# if no pst file found, open and chekc for blocked users
		1628	if (aio_stat "$path.pst") {
		1629	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1630	aio_read $fh, 0, 512, my $buf, 0 or next;
		1631	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1632	}
		1633
		1634	utf8::decode $login;
		1635	push @logins, $login;
		1636	}
		1637
		1638	\@logins
		1639	}
		1640
		1641	=item $player->maps
		1642
		1643	Returns an arrayref of map paths that are private for this
		1644	player. May block.
		1645
		1646	=cut
		1647
		1648	sub maps($) {
		1649	my ($pl) = @_;
		1650
		1651	$pl = ref $pl ? $pl->ob->name : $pl;
		1652
		1653	my $files = aio_readdir playerdir $pl
		1654	or return;
		1655
		1656	my @paths;
		1657
		1658	for (@$files) {
		1659	utf8::decode $_;
		1660	next if /\.(?:pl|pst)$/;
		1661	next unless /^$PATH_SEP/o;
		1662
		1663	push @paths, cf::map::normalise "~$pl/$_";
		1664	}
		1665
		1666	\@paths
		1667	}
		1668
		1669	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1670
		1671	Expand deliantra pod fragments into protocol xml.
		1672
		1673	=item $player->ext_reply ($msgid, @msg)
		1674
		1675	Sends an ext reply to the player.
		1676
		1677	=cut
		1678
		1679	sub ext_reply($$@) {
		1680	my ($self, $id, @msg) = @_;
		1681
		1682	$self->ns->ext_reply ($id, @msg)
		1683	}
		1684
		1685	=item $player->ext_msg ($type, @msg)
		1686
		1687	Sends an ext event to the client.
		1688
		1689	=cut
		1690
		1691	sub ext_msg($$@) {
		1692	my ($self, $type, @msg) = @_;
		1693
		1694	$self->ns->ext_msg ($type, @msg);
		1695	}
		1696
		1697	=head3 cf::region
		1698
		1699	=over 4
		1700
		1701	=cut
		1702
		1703	package cf::region;
		1704
		1705	=item cf::region::find_by_path $path
		1706
		1707	Tries to decuce the likely region for a map knowing only its path.
		1708
		1709	=cut
		1710
		1711	sub find_by_path($) {
967	my ($path) = @_;	1712	my ($path) = @_;
968		1713
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1714	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1715
975	warn "loading '$path' into '$pkg'\n";	1716	for my $region (list) {
976		1717	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1718	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1719	if $region->specificity > $specificity;
979		1720	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1721	}
1009		1722
1010	# remove commands	1723	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1724	}
1116		1725
1117	=back	1726	=back
1118
1119		1727
1120	=head3 cf::map	1728	=head3 cf::map
1121		1729
1122	=over 4	1730	=over 4
1123		1731
…		…
1126	package cf::map;	1734	package cf::map;
1127		1735
1128	use Fcntl;	1736	use Fcntl;
1129	use Coro::AIO;	1737	use Coro::AIO;
1130		1738
		1739	use overload
		1740	'""' => \&as_string,
		1741	fallback => 1;
		1742
1131	our $MAX_RESET = 7200;	1743	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1744	our $DEFAULT_RESET = 3000;
1133		1745
1134	sub generate_random_map {	1746	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1747	my ($self, $rmp) = @_;
		1748
		1749	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1750
1137	# mit "rum" bekleckern, nicht	1751	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1752	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1753	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1754	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1755	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1756	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1757	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1758	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1759	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1760	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1761	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1762	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1763	(cf::region::find $rmp->{region}), $rmp->{custom}
		1764	)
1151	}	1765	}
1152		1766
1153	# and all this just because we cannot iterate over	1767	=item cf::map->register ($regex, $prio)
1154	# all maps in C++...
1155	sub change_all_map_light {
1156	my ($change) = @_;
1157		1768
1158	$_->change_map_light ($change) for values %cf::MAP;	1769	Register a handler for the map path matching the given regex at the
1159	}	1770	givne priority (higher is better, built-in handlers have priority 0, the
		1771	default).
1160		1772
1161	sub try_load_header($) {	1773	=cut
		1774
		1775	sub register {
		1776	my (undef, $regex, $prio) = @_;
		1777	my $pkg = caller;
		1778
		1779	no strict;
		1780	push @{"$pkg\::ISA"}, __PACKAGE__;
		1781
		1782	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1783	}
		1784
		1785	# also paths starting with '/'
		1786	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1787
		1788	sub thawer_merge {
		1789	my ($self, $merge) = @_;
		1790
		1791	# we have to keep some variables in memory intact
		1792	local $self->{path};
		1793	local $self->{load_path};
		1794
		1795	$self->SUPER::thawer_merge ($merge);
		1796	}
		1797
		1798	sub normalise {
1162	my ($path) = @_;	1799	my ($path, $base) = @_;
		1800
		1801	$path = "$path"; # make sure its a string
		1802
		1803	$path =~ s/\.map$//;
		1804
		1805	# map plan:
		1806	#
		1807	# /! non-realised random map exit (special hack!)
		1808	# {... are special paths that are not being touched
		1809	# ?xxx/... are special absolute paths
		1810	# ?random/... random maps
		1811	# /... normal maps
		1812	# ~user/... per-player map of a specific user
		1813
		1814	$path =~ s/$PATH_SEP/\//go;
		1815
		1816	# treat it as relative path if it starts with
		1817	# something that looks reasonable
		1818	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1819	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1820
		1821	$base =~ s{[^/]+/?$}{};
		1822	$path = "$base/$path";
		1823	}
		1824
		1825	for ($path) {
		1826	redo if s{//}{/};
		1827	redo if s{/\.?/}{/};
		1828	redo if s{/[^/]+/\.\./}{/};
		1829	}
		1830
		1831	$path
		1832	}
		1833
		1834	sub new_from_path {
		1835	my (undef, $path, $base) = @_;
		1836
		1837	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1838
		1839	$path = normalise $path, $base;
		1840
		1841	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1842	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1843	my $self = bless cf::map::new, $pkg;
		1844	$self->{path} = $path; $self->path ($path);
		1845	$self->init; # pass $1 etc.
		1846	return $self;
		1847	}
		1848	}
		1849
		1850	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1851	()
		1852	}
		1853
		1854	sub init {
		1855	my ($self) = @_;
		1856
		1857	$self
		1858	}
		1859
		1860	sub as_string {
		1861	my ($self) = @_;
		1862
		1863	"$self->{path}"
		1864	}
		1865
		1866	# the displayed name, this is a one way mapping
		1867	sub visible_name {
		1868	&as_string
		1869	}
		1870
		1871	# the original (read-only) location
		1872	sub load_path {
		1873	my ($self) = @_;
		1874
		1875	"$MAPDIR/$self->{path}.map"
		1876	}
		1877
		1878	# the temporary/swap location
		1879	sub save_path {
		1880	my ($self) = @_;
		1881
		1882	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1883	"$TMPDIR/$path.map"
		1884	}
		1885
		1886	# the unique path, undef == no special unique path
		1887	sub uniq_path {
		1888	my ($self) = @_;
		1889
		1890	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1891	"$UNIQUEDIR/$path"
		1892	}
		1893
		1894	sub decay_objects {
		1895	my ($self) = @_;
		1896
		1897	return if $self->{deny_reset};
		1898
		1899	$self->do_decay_objects;
		1900	}
		1901
		1902	sub unlink_save {
		1903	my ($self) = @_;
		1904
		1905	utf8::encode (my $save = $self->save_path);
		1906	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1907	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1908	}
		1909
		1910	sub load_header_from($) {
		1911	my ($self, $path) = @_;
1163		1912
1164	utf8::encode $path;	1913	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1914	my $f = new_from_file cf::object::thawer $path
1166	or return;	1915	or return;
1167		1916
1168	my $map = cf::map::new	1917	$self->_load_header ($f)
1169	or return;	1918	or return;
1170		1919
1171	$map->load_header ($path)	1920	local $MAP_LOADING{$self->{path}} = $self;
		1921	$f->resolve_delayed_derefs;
		1922
		1923	$self->{load_path} = $path;
		1924
		1925	1
		1926	}
		1927
		1928	sub load_header_orig {
		1929	my ($self) = @_;
		1930
		1931	$self->load_header_from ($self->load_path)
		1932	}
		1933
		1934	sub load_header_temp {
		1935	my ($self) = @_;
		1936
		1937	$self->load_header_from ($self->save_path)
		1938	}
		1939
		1940	sub prepare_temp {
		1941	my ($self) = @_;
		1942
		1943	$self->last_access ((delete $self->{last_access})
		1944	|| $cf::RUNTIME); #d#
		1945	# safety
		1946	$self->{instantiate_time} = $cf::RUNTIME
		1947	if $self->{instantiate_time} > $cf::RUNTIME;
		1948	}
		1949
		1950	sub prepare_orig {
		1951	my ($self) = @_;
		1952
		1953	$self->{load_original} = 1;
		1954	$self->{instantiate_time} = $cf::RUNTIME;
		1955	$self->last_access ($cf::RUNTIME);
		1956	$self->instantiate;
		1957	}
		1958
		1959	sub load_header {
		1960	my ($self) = @_;
		1961
		1962	if ($self->load_header_temp) {
		1963	$self->prepare_temp;
		1964	} else {
		1965	$self->load_header_orig
1172	or return;	1966	or return;
		1967	$self->prepare_orig;
		1968	}
1173		1969
1174	$map->{load_path} = $path;	1970	$self->{deny_reset} = 1
		1971	if $self->no_reset;
1175		1972
1176	$map	1973	$self->default_region (cf::region::find_by_path $self->{path})
1177	}	1974	unless $self->default_region;
1178		1975
		1976	1
		1977	}
		1978
		1979	sub find;
1179	sub find_map {	1980	sub find {
1180	my ($path, $origin) = @_;	1981	my ($path, $origin) = @_;
1181		1982
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1983	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1984
1187	cf::lock_wait "map_find:$key";	1985	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1986	my $guard2 = cf::lock_acquire "map_find:$path";
1191		1987
1192	# do it the slow way	1988	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	1989	my $map = new_from_path cf::map $path
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1990	or return;
1207		1991
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1992	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1993
1221	if ($map->should_reset) {	1994	$map->load_header
		1995	or return;
		1996
		1997	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1998	# doing this can freeze the server in a sync job, obviously
		1999	#$cf::WAIT_FOR_TICK->wait;
		2000	undef $guard2;
		2001	undef $guard1;
1222	$map->reset;	2002	$map->reset;
1223	$map = find_map $path;	2003	return find $path;
1224	}	2004	}
1225		2005
1226	$cf::MAP{$key} = $map	2006	$cf::MAP{$path} = $map
1227	}	2007	}
1228	}	2008	}
		2009
		2010	sub pre_load { }
		2011	sub post_load { }
1229		2012
1230	sub load {	2013	sub load {
1231	my ($self) = @_;	2014	my ($self) = @_;
1232		2015
		2016	local $self->{deny_reset} = 1; # loading can take a long time
		2017
1233	my $path = $self->{path};	2018	my $path = $self->{path};
		2019
		2020	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2021	my $guard = cf::lock_acquire "map_data:$path";
1235		2022
		2023	return unless $self->valid;
1236	return if $self->in_memory != cf::MAP_SWAPPED;	2024	return unless $self->in_memory == cf::MAP_SWAPPED;
1237		2025
1238	$self->in_memory (cf::MAP_LOADING);	2026	$self->in_memory (cf::MAP_LOADING);
1239		2027
1240	$self->alloc;	2028	$self->alloc;
1241	$self->load_objects ($self->{load_path}, 1)	2029
		2030	$self->pre_load;
		2031	cf::cede_to_tick;
		2032
		2033	my $f = new_from_file cf::object::thawer $self->{load_path};
		2034	$f->skip_block;
		2035	$self->_load_objects ($f)
1242	or return;	2036	or return;
1243		2037
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2038	$self->post_load_original
1245	if delete $self->{load_original};	2039	if delete $self->{load_original};
1246		2040
1247	if (my $uniq = $path->uniq_path) {	2041	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	2042	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	2043	unless (aio_stat $uniq) {
		2044	if (my $f = new_from_file cf::object::thawer $uniq) {
1250	$self->clear_unique_items;	2045	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	2046	$self->_load_objects ($f);
		2047	$f->resolve_delayed_derefs;
		2048	}
1252	}	2049	}
1253	}	2050	}
1254		2051
		2052	$f->resolve_delayed_derefs;
		2053
		2054	cf::cede_to_tick;
1255	# now do the right thing for maps	2055	# now do the right thing for maps
1256	$self->link_multipart_objects;	2056	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	2057	$self->difficulty ($self->estimate_difficulty)
1267	unless $self->difficulty;	2058	unless $self->difficulty;
		2059	cf::cede_to_tick;
		2060
		2061	unless ($self->{deny_activate}) {
		2062	$self->decay_objects;
		2063	$self->fix_auto_apply;
		2064	$self->update_buttons;
		2065	cf::cede_to_tick;
1268	$self->activate;	2066	$self->activate;
1269	}	2067	}
1270		2068
		2069	$self->{last_save} = $cf::RUNTIME;
		2070	$self->last_access ($cf::RUNTIME);
		2071
1271	$self->in_memory (cf::MAP_IN_MEMORY);	2072	$self->in_memory (cf::MAP_ACTIVE);
1272	}	2073	}
1273		2074
1274	sub load_map_sync {	2075	$self->post_load;
		2076	}
		2077
		2078	sub customise_for {
		2079	my ($self, $ob) = @_;
		2080
		2081	return find "~" . $ob->name . "/" . $self->{path}
		2082	if $self->per_player;
		2083
		2084	# return find "?party/" . $ob->name . "/" . $self->{path}
		2085	# if $self->per_party;
		2086
		2087	$self
		2088	}
		2089
		2090	# find and load all maps in the 3x3 area around a map
		2091	sub load_neighbours {
		2092	my ($map) = @_;
		2093
		2094	my @neigh; # diagonal neighbours
		2095
		2096	for (0 .. 3) {
		2097	my $neigh = $map->tile_path ($_)
		2098	or next;
		2099	$neigh = find $neigh, $map
		2100	or next;
		2101	$neigh->load;
		2102
		2103	push @neigh,
		2104	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2105	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2106	}
		2107
		2108	for (grep defined $_->[0], @neigh) {
		2109	my ($path, $origin) = @$_;
		2110	my $neigh = find $path, $origin
		2111	or next;
		2112	$neigh->load;
		2113	}
		2114	}
		2115
		2116	sub find_sync {
1275	my ($path, $origin) = @_;	2117	my ($path, $origin) = @_;
1276		2118
1277	#warn "load_map_sync<$path, $origin>\n";#d#	2119	cf::sync_job { find $path, $origin }
		2120	}
1278		2121
1279	cf::sync_job {	2122	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	2123	my ($map) = @_;
1281	or return;	2124
1282	$map->load;	2125	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1283	$map	2126	if $Coro::current == $Coro::main;
		2127
		2128	cf::sync_job { $map->load };
		2129	}
		2130
		2131	our %MAP_PREFETCH;
		2132	our $MAP_PREFETCHER = undef;
		2133
		2134	sub find_async {
		2135	my ($path, $origin, $load) = @_;
		2136
		2137	$path = normalise $path, $origin && $origin->{path};
		2138
		2139	if (my $map = $cf::MAP{$path}) {
		2140	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2141	}
		2142
		2143	$MAP_PREFETCH{$path} |= $load;
		2144
		2145	$MAP_PREFETCHER ||= cf::async {
		2146	$Coro::current->{desc} = "map prefetcher";
		2147
		2148	while (%MAP_PREFETCH) {
		2149	while (my ($k, $v) = each %MAP_PREFETCH) {
		2150	if (my $map = find $k) {
		2151	$map->load if $v;
		2152	}
		2153
		2154	delete $MAP_PREFETCH{$k};
		2155	}
		2156	}
		2157	undef $MAP_PREFETCHER;
1284	}	2158	};
		2159	$MAP_PREFETCHER->prio (6);
		2160
		2161	()
1285	}	2162	}
1286		2163
1287	sub save {	2164	sub save {
1288	my ($self) = @_;	2165	my ($self) = @_;
1289		2166
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
1290	$self->{last_save} = $cf::RUNTIME;	2169	$self->{last_save} = $cf::RUNTIME;
1291		2170
1292	return unless $self->dirty;	2171	return unless $self->dirty;
1293		2172
1294	my $save = $self->{path}->save_path; utf8::encode $save;	2173	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2174	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		2175
1297	$self->{load_path} = $save;	2176	$self->{load_path} = $save;
1298		2177
1299	return if $self->{deny_save};	2178	return if $self->{deny_save};
1300		2179
		2180	local $self->{last_access} = $self->last_access;#d#
		2181
		2182	cf::async {
		2183	$Coro::current->{desc} = "map player save";
		2184	$_->contr->save for $self->players;
		2185	};
		2186
		2187	cf::get_slot 0.02;
		2188
1301	if ($uniq) {	2189	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2190	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	2191	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	2192	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	2194	}
1307	}	2195	}
1308		2196
1309	sub swap_out {	2197	sub swap_out {
1310	my ($self) = @_;	2198	my ($self) = @_;
1311		2199
		2200	# save first because save cedes
		2201	$self->save;
		2202
		2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2204
1312	return if $self->players;	2205	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	2206	return if $self->in_memory != cf::MAP_ACTIVE;
1314	return if $self->{deny_save};	2207	return if $self->{deny_save};
1315		2208
		2209	$self->in_memory (cf::MAP_SWAPPED);
		2210
1316	$self->save;	2211	$self->deactivate;
		2212	$_->clear_links_to ($self) for values %cf::MAP;
1317	$self->clear;	2213	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);
1319	}	2214	}
1320		2215
1321	sub reset_at {	2216	sub reset_at {
1322	my ($self) = @_;	2217	my ($self) = @_;
1323		2218
1324	# TODO: safety, remove and allow resettable per-player maps	2219	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};
1326	return 1e99 if $self->{deny_reset};	2220	return 1e99 if $self->{deny_reset};
1327		2221
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2222	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2223	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		2224
…		…
1335	my ($self) = @_;	2229	my ($self) = @_;
1336		2230
1337	$self->reset_at <= $cf::RUNTIME	2231	$self->reset_at <= $cf::RUNTIME
1338	}	2232	}
1339		2233
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	2234	sub reset {
1362	my ($self) = @_;	2235	my ($self) = @_;
1363		2236
		2237	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2238
1364	return if $self->players;	2239	return if $self->players;
1365	return if $self->{path}{user_rel};#d#
1366		2240
1367	warn "resetting map ", $self->path;#d#	2241	warn "resetting map ", $self->path, "\n";
		2242
		2243	$self->in_memory (cf::MAP_SWAPPED);
		2244
		2245	# need to save uniques path
		2246	unless ($self->{deny_save}) {
		2247	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2248
		2249	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2250	if $uniq;
		2251	}
1368		2252
1369	delete $cf::MAP{$self->path};	2253	delete $cf::MAP{$self->path};
1370		2254
		2255	$self->deactivate;
1371	$_->clear_links_to ($self) for values %cf::MAP;	2256	$_->clear_links_to ($self) for values %cf::MAP;
		2257	$self->clear;
1372		2258
1373	$self->unlink_save;	2259	$self->unlink_save;
1374	$self->destroy;	2260	$self->destroy;
1375	}	2261	}
1376		2262
1377	my $nuke_counter = "aaaa";	2263	my $nuke_counter = "aaaa";
1378		2264
1379	sub nuke {	2265	sub nuke {
1380	my ($self) = @_;	2266	my ($self) = @_;
1381		2267
		2268	{
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
		2271	delete $cf::MAP{$self->path};
		2272
		2273	$self->unlink_save;
		2274
		2275	bless $self, "cf::map";
		2276	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	2277	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	2278	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	2279	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2280
		2281	$cf::MAP{$self->path} = $self;
		2282	}
		2283
1385	$self->reset; # polite request, might not happen	2284	$self->reset; # polite request, might not happen
1386	}	2285	}
1387		2286
1388	sub customise_for {	2287	=item $maps = cf::map::tmp_maps
1389	my ($map, $ob) = @_;
1390		2288
1391	if ($map->per_player) {	2289	Returns an arrayref with all map paths of currently instantiated and saved
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2290	maps. May block.
		2291
		2292	=cut
		2293
		2294	sub tmp_maps() {
1393	}	2295	[
1394		2296	map {
1395	$map	2297	utf8::decode $_;
		2298	/\.map$/
		2299	? normalise $_
		2300	: ()
		2301	} @{ aio_readdir $TMPDIR or [] }
		2302	]
1396	}	2303	}
1397		2304
1398	sub emergency_save {	2305	=item $maps = cf::map::random_maps
1399	local $cf::FREEZE = 1;
1400		2306
1401	warn "enter emergency map save\n";	2307	Returns an arrayref with all map paths of currently instantiated and saved
		2308	random maps. May block.
1402		2309
1403	cf::sync_job {	2310	=cut
1404	warn "begin emergency map save\n";	2311
1405	$_->save for values %cf::MAP;	2312	sub random_maps() {
		2313	[
		2314	map {
		2315	utf8::decode $_;
		2316	/\.map$/
		2317	? normalise "?random/$_"
		2318	: ()
		2319	} @{ aio_readdir $RANDOMDIR or [] }
		2320	]
		2321	}
		2322
		2323	=item cf::map::unique_maps
		2324
		2325	Returns an arrayref of paths of all shared maps that have
		2326	instantiated unique items. May block.
		2327
		2328	=cut
		2329
		2330	sub unique_maps() {
		2331	[
		2332	map {
		2333	utf8::decode $_;
		2334	s/\.map$//; # TODO future compatibility hack
		2335	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2336	? ()
		2337	: normalise $_
		2338	} @{ aio_readdir $UNIQUEDIR or [] }
		2339	]
		2340	}
		2341
		2342	=back
		2343
		2344	=head3 cf::object
		2345
		2346	=cut
		2347
		2348	package cf::object;
		2349
		2350	=over 4
		2351
		2352	=item $ob->inv_recursive
		2353
		2354	Returns the inventory of the object I<and> their inventories, recursively,
		2355	but I<not> the object itself.
		2356
		2357	=cut
		2358
		2359	sub inv_recursive_;
		2360	sub inv_recursive_ {
		2361	map { $_, inv_recursive_ $_->inv } @_
		2362	}
		2363
		2364	sub inv_recursive {
		2365	inv_recursive_ inv $_[0]
		2366	}
		2367
		2368	=item $ref = $ob->ref
		2369
		2370	Creates and returns a persistent reference to an object that can be stored as a string.
		2371
		2372	=item $ob = cf::object::deref ($refstring)
		2373
		2374	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2375	even if the object actually exists. May block.
		2376
		2377	=cut
		2378
		2379	sub deref {
		2380	my ($ref) = @_;
		2381
		2382	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2383	my ($uuid, $name) = ($1, $2);
		2384	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2385	or return;
		2386	$pl->ob->uuid eq $uuid
		2387	or return;
		2388
		2389	$pl->ob
		2390	} else {
		2391	warn "$ref: cannot resolve object reference\n";
		2392	undef
1406	};	2393	}
1407
1408	warn "end emergency map save\n";
1409	}	2394	}
1410		2395
1411	package cf;	2396	package cf;
1412		2397
1413	=back	2398	=back
1414
1415		2399
1416	=head3 cf::object::player	2400	=head3 cf::object::player
1417		2401
1418	=over 4	2402	=over 4
1419		2403
…		…
1422	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2406	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1423	can be C<undef>. Does the right thing when the player is currently in a	2407	can be C<undef>. Does the right thing when the player is currently in a
1424	dialogue with the given NPC character.	2408	dialogue with the given NPC character.
1425		2409
1426	=cut	2410	=cut
		2411
		2412	our $SAY_CHANNEL = {
		2413	id => "say",
		2414	title => "Map",
		2415	reply => "say ",
		2416	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2417	};
		2418
		2419	our $CHAT_CHANNEL = {
		2420	id => "chat",
		2421	title => "Chat",
		2422	reply => "chat ",
		2423	tooltip => "Player chat and shouts, global to the server.",
		2424	};
1427		2425
1428	# rough implementation of a future "reply" method that works	2426	# rough implementation of a future "reply" method that works
1429	# with dialog boxes.	2427	# with dialog boxes.
1430	#TODO: the first argument must go, split into a $npc->reply_to ( method	2428	#TODO: the first argument must go, split into a $npc->reply_to ( method
1431	sub cf::object::player::reply($$$;$) {	2429	sub cf::object::player::reply($$$;$) {
…		…
1433		2431
1434	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2432	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1435		2433
1436	if ($self->{record_replies}) {	2434	if ($self->{record_replies}) {
1437	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2435	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2436
1438	} else {	2437	} else {
		2438	my $pl = $self->contr;
		2439
		2440	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2441	my $dialog = $pl->{npc_dialog};
		2442	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2443
		2444	} else {
1439	$msg = $npc->name . " says: $msg" if $npc;	2445	$msg = $npc->name . " says: $msg" if $npc;
1440	$self->message ($msg, $flags);	2446	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2447	}
1441	}	2448	}
		2449	}
		2450
		2451	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2452
		2453	=cut
		2454
		2455	sub cf::object::send_msg {
		2456	my $pl = shift->contr
		2457	or return;
		2458	$pl->send_msg (@_);
1442	}	2459	}
1443		2460
1444	=item $player_object->may ("access")	2461	=item $player_object->may ("access")
1445		2462
1446	Returns wether the given player is authorized to access resource "access"	2463	Returns wether the given player is authorized to access resource "access"
…		…
1459		2476
1460	=item $player_object->enter_link	2477	=item $player_object->enter_link
1461		2478
1462	Freezes the player and moves him/her to a special map (C<{link}>).	2479	Freezes the player and moves him/her to a special map (C<{link}>).
1463		2480
1464	The player should be reaosnably safe there for short amounts of time. You	2481	The player should be reasonably safe there for short amounts of time (e.g.
1465	I<MUST> call C<leave_link> as soon as possible, though.	2482	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2483	though, as the palyer cannot control the character while it is on the link
		2484	map.
		2485
		2486	Will never block.
1466		2487
1467	=item $player_object->leave_link ($map, $x, $y)	2488	=item $player_object->leave_link ($map, $x, $y)
1468		2489
1469	Moves the player out of the specila link map onto the given map. If the	2490	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	2491	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	2492	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	2493	fails, to the emergency map position.
1473		2494
1474	Might block.	2495	Might block.
1475		2496
1476	=cut	2497	=cut
		2498
		2499	sub link_map {
		2500	unless ($LINK_MAP) {
		2501	$LINK_MAP = cf::map::find "{link}"
		2502	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2503	$LINK_MAP->load;
		2504	}
		2505
		2506	$LINK_MAP
		2507	}
1477		2508
1478	sub cf::object::player::enter_link {	2509	sub cf::object::player::enter_link {
1479	my ($self) = @_;	2510	my ($self) = @_;
1480		2511
1481	$self->deactivate_recursive;	2512	$self->deactivate_recursive;
1482		2513
1483	return if $self->map == $LINK_MAP;	2514	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		2515
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2516	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	2517	if $self->map && $self->map->{path} ne "{link}";
1487		2518
1488	$self->enter_map ($LINK_MAP, 20, 20);	2519	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	2520	}
1490		2521
1491	sub cf::object::player::leave_link {	2522	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	2523	my ($self, $map, $x, $y) = @_;
		2524
		2525	return unless $self->contr->active;
1493		2526
1494	my $link_pos = delete $self->{_link_pos};	2527	my $link_pos = delete $self->{_link_pos};
1495		2528
1496	unless ($map) {	2529	unless ($map) {
1497	# restore original map position	2530	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	2531	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	2532	$map = cf::map::find $map;
1500		2533
1501	unless ($map) {	2534	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	2535	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	2536	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	2537	or die "FATAL: cannot load emergency map\n";
1505	}	2538	}
1506	}	2539	}
1507		2540
1508	($x, $y) = (-1, -1)	2541	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	2544	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	2545	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	2546	if $x <=0 && $y <= 0;
1514		2547
1515	$map->load;	2548	$map->load;
		2549	$map->load_neighbours;
1516		2550
		2551	return unless $self->contr->active;
		2552
		2553	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2554	$self->enter_map ($map, $x, $y);
		2555
		2556	# only activate afterwards, to support waiting in hooks
1517	$self->activate_recursive;	2557	$self->activate_recursive;
1518	$self->enter_map ($map, $x, $y);
1519	}	2558	}
1520		2559
1521	cf::player->attach (	2560	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1522	on_logout => sub {
1523	my ($pl) = @_;
1524		2561
1525	# abort map switching before logout	2562	Moves the player to the given map-path and coordinates by first freezing
1526	if ($pl->ob->{_link_pos}) {	2563	her, loading and preparing them map, calling the provided $check callback
1527	cf::sync_job {	2564	that has to return the map if sucecssful, and then unfreezes the player on
1528	$pl->ob->leave_link	2565	the new (success) or old (failed) map position. In either case, $done will
1529	};	2566	be called at the end of this process.
1530	}
1531	},
1532	on_login => sub {
1533	my ($pl) = @_;
1534		2567
1535	# try to abort aborted map switching on player login :)	2568	Note that $check will be called with a potentially non-loaded map, so if
1536	# should happen only on crashes	2569	it needs a loaded map it has to call C<< ->load >>.
1537	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;
1539	Coro::async {
1540	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;
1544	};
1545	}
1546	},
1547	);
1548		2570
1549	=item $player_object->goto_map ($path, $x, $y)
1550
1551	=cut	2571	=cut
1552		2572
		2573	our $GOTOGEN;
		2574
1553	sub cf::object::player::goto_map {	2575	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	2576	my ($self, $path, $x, $y, $check, $done) = @_;
		2577
		2578	# do generation counting so two concurrent goto's will be executed in-order
		2579	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1555		2580
1556	$self->enter_link;	2581	$self->enter_link;
1557		2582
1558	(Coro::async {	2583	(async {
1559	$path = new cf::path $path;	2584	$Coro::current->{desc} = "player::goto $path $x $y";
1560		2585
1561	my $map = cf::map::find_map $path->as_string;	2586	# *tag paths override both path and x|y
		2587	if ($path =~ /^\*(.*)$/) {
		2588	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2589	my $ob = $obs[rand @obs];
		2590
		2591	# see if we actually can go there
		2592	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2593	$ob = $obs[rand @obs];
		2594	} else {
		2595	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	}
		2597	# else put us there anyways for now #d#
		2598
		2599	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2600	} else {
		2601	($path, $x, $y) = (undef, undef, undef);
		2602	}
		2603	}
		2604
		2605	my $map = eval {
		2606	my $map = defined $path ? cf::map::find $path : undef;
		2607
		2608	if ($map) {
1562	$map = $map->customise_for ($self) if $map;	2609	$map = $map->customise_for ($self);
1563		2610	$map = $check->($map) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2611	} else {
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2612	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2613	}
1568		2614
		2615	$map
		2616	};
		2617
		2618	if ($@) {
		2619	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2620	LOG llevError | logBacktrace, Carp::longmess $@;
		2621	}
		2622
		2623	if ($gen == $self->{_goto_generation}) {
		2624	delete $self->{_goto_generation};
1569	$self->leave_link ($map, $x, $y);	2625	$self->leave_link ($map, $x, $y);
		2626	}
		2627
		2628	$done->() if $done;
1570	})->prio (1);	2629	})->prio (1);
1571	}	2630	}
1572		2631
1573	=item $player_object->enter_exit ($exit_object)	2632	=item $player_object->enter_exit ($exit_object)
1574		2633
…		…
1576		2635
1577	sub parse_random_map_params {	2636	sub parse_random_map_params {
1578	my ($spec) = @_;	2637	my ($spec) = @_;
1579		2638
1580	my $rmp = { # defaults	2639	my $rmp = { # defaults
1581	xsize => 10,	2640	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2641	ysize => (cf::rndm 15, 40),
		2642	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2643	#layout => string,
1583	};	2644	};
1584		2645
1585	for (split /\n/, $spec) {	2646	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2647	my ($k, $v) = split /\s+/, $_, 2;
1587		2648
…		…
1599	# that depends on the exit object	2660	# that depends on the exit object
1600		2661
1601	my $rmp = parse_random_map_params $exit->msg;	2662	my $rmp = parse_random_map_params $exit->msg;
1602		2663
1603	if ($exit->map) {	2664	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2665	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2666	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2667	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2668	$rmp->{origin_y} = $exit->y;
		2669
		2670	$exit->map->touch;
1608	}	2671	}
1609		2672
1610	$rmp->{random_seed} ||= $exit->random_seed;	2673	$rmp->{random_seed} ||= $exit->random_seed;
1611		2674
1612	my $data = cf::to_json $rmp;	2675	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1613	my $md5 = Digest::MD5::md5_hex $data;	2676	my $md5 = Digest::MD5::md5_hex $data;
		2677	my $meta = "$RANDOMDIR/$md5.meta";
1614		2678
1615	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2679	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1616	aio_write $fh, 0, (length $data), $data, 0;	2680	aio_write $fh, 0, (length $data), $data, 0;
		2681	undef $fh;
		2682	aio_rename "$meta~", $meta;
1617		2683
		2684	my $slaying = "?random/$md5";
		2685
		2686	if ($exit->valid) {
1618	$exit->slaying ("?random/$md5");	2687	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2688	$exit->msg (undef);
		2689	}
1620	}	2690	}
1621	}	2691	}
1622		2692
1623	sub cf::object::player::enter_exit {	2693	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2694	my ($self, $exit) = @_;
1625		2695
1626	return unless $self->type == cf::PLAYER;	2696	return unless $self->type == cf::PLAYER;
1627		2697
1628	$self->enter_link;	2698	$self->enter_link;
1629		2699
1630	(Coro::async {	2700	(async {
		2701	$Coro::current->{desc} = "enter_exit";
		2702
1631	unless (eval {	2703	unless (eval {
		2704	$self->deactivate_recursive; # just to be sure
1632		2705
		2706	# random map handling
		2707	{
		2708	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2709
1633	prepare_random_map $exit	2710	prepare_random_map $exit
1634	if $exit->slaying eq "/!";	2711	if $exit->slaying eq "/!";
		2712	}
1635		2713
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2714	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2715	my $x = $exit->stats->hp;
		2716	my $y = $exit->stats->sp;
1638		2717
		2718	$self->goto ($map, $x, $y);
		2719
		2720	# if exit is damned, update players death & WoR home-position
		2721	$self->contr->savebed ($map, $x, $y)
		2722	if $exit->flag (cf::FLAG_DAMNED);
		2723
1639	1;	2724	1
1640	}) {	2725	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2726	$self->message ("Something went wrong deep within the deliantra server. "
1642	. "I'll try to bring you back to the map you were before. "	2727	. "I'll try to bring you back to the map you were before. "
1643	. "Please report this to the dungeon master",	2728	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2729	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2730
1646	warn "ERROR in enter_exit: $@";	2731	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2732	$self->leave_link;
1648	}	2733	}
1649	})->prio (1);	2734	})->prio (1);
…		…
1662		2747
1663	sub cf::client::send_drawinfo {	2748	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2749	my ($self, $text, $flags) = @_;
1665		2750
1666	utf8::encode $text;	2751	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2752	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2753	}
1669		2754
		2755	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2756
		2757	Send a drawinfo or msg packet to the client, formatting the msg for the
		2758	client if neccessary. C<$type> should be a string identifying the type of
		2759	the message, with C<log> being the default. If C<$color> is negative, suppress
		2760	the message unless the client supports the msg packet.
		2761
		2762	=cut
		2763
		2764	# non-persistent channels (usually the info channel)
		2765	our %CHANNEL = (
		2766	"c/identify" => {
		2767	id => "infobox",
		2768	title => "Identify",
		2769	reply => undef,
		2770	tooltip => "Items recently identified",
		2771	},
		2772	"c/examine" => {
		2773	id => "infobox",
		2774	title => "Examine",
		2775	reply => undef,
		2776	tooltip => "Signs and other items you examined",
		2777	},
		2778	"c/book" => {
		2779	id => "infobox",
		2780	title => "Book",
		2781	reply => undef,
		2782	tooltip => "The contents of a note or book",
		2783	},
		2784	"c/lookat" => {
		2785	id => "infobox",
		2786	title => "Look",
		2787	reply => undef,
		2788	tooltip => "What you saw there",
		2789	},
		2790	"c/who" => {
		2791	id => "infobox",
		2792	title => "Players",
		2793	reply => undef,
		2794	tooltip => "Shows players who are currently online",
		2795	},
		2796	"c/body" => {
		2797	id => "infobox",
		2798	title => "Body Parts",
		2799	reply => undef,
		2800	tooltip => "Shows which body parts you posess and are available",
		2801	},
		2802	"c/statistics" => {
		2803	id => "infobox",
		2804	title => "Statistics",
		2805	reply => undef,
		2806	tooltip => "Shows your primary statistics",
		2807	},
		2808	"c/skills" => {
		2809	id => "infobox",
		2810	title => "Skills",
		2811	reply => undef,
		2812	tooltip => "Shows your experience per skill and item power",
		2813	},
		2814	"c/shopitems" => {
		2815	id => "infobox",
		2816	title => "Shop Items",
		2817	reply => undef,
		2818	tooltip => "Shows the items currently for sale in this shop",
		2819	},
		2820	"c/resistances" => {
		2821	id => "infobox",
		2822	title => "Resistances",
		2823	reply => undef,
		2824	tooltip => "Shows your resistances",
		2825	},
		2826	"c/pets" => {
		2827	id => "infobox",
		2828	title => "Pets",
		2829	reply => undef,
		2830	tooltip => "Shows information abotu your pets/a specific pet",
		2831	},
		2832	"c/perceiveself" => {
		2833	id => "infobox",
		2834	title => "Perceive Self",
		2835	reply => undef,
		2836	tooltip => "You gained detailed knowledge about yourself",
		2837	},
		2838	"c/uptime" => {
		2839	id => "infobox",
		2840	title => "Uptime",
		2841	reply => undef,
		2842	tooltip => "How long the server has been running since last restart",
		2843	},
		2844	"c/mapinfo" => {
		2845	id => "infobox",
		2846	title => "Map Info",
		2847	reply => undef,
		2848	tooltip => "Information related to the maps",
		2849	},
		2850	"c/party" => {
		2851	id => "party",
		2852	title => "Party",
		2853	reply => "gsay ",
		2854	tooltip => "Messages and chat related to your party",
		2855	},
		2856	"c/death" => {
		2857	id => "death",
		2858	title => "Death",
		2859	reply => undef,
		2860	tooltip => "Reason for and more info about your most recent death",
		2861	},
		2862	"c/say" => $SAY_CHANNEL,
		2863	"c/chat" => $CHAT_CHANNEL,
		2864	);
		2865
		2866	sub cf::client::send_msg {
		2867	my ($self, $channel, $msg, $color, @extra) = @_;
		2868
		2869	$msg = $self->pl->expand_cfpod ($msg)
		2870	unless $color & cf::NDI_VERBATIM;
		2871
		2872	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2873
		2874	# check predefined channels, for the benefit of C
		2875	if ($CHANNEL{$channel}) {
		2876	$channel = $CHANNEL{$channel};
		2877
		2878	$self->ext_msg (channel_info => $channel);
		2879	$channel = $channel->{id};
		2880
		2881	} elsif (ref $channel) {
		2882	# send meta info to client, if not yet sent
		2883	unless (exists $self->{channel}{$channel->{id}}) {
		2884	$self->{channel}{$channel->{id}} = $channel;
		2885	$self->ext_msg (channel_info => $channel);
		2886	}
		2887
		2888	$channel = $channel->{id};
		2889	}
		2890
		2891	return unless @extra || length $msg;
		2892
		2893	# default colour, mask it out
		2894	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2895	if $color & cf::NDI_DEF;
		2896
		2897	my $pkt = "msg "
		2898	. $self->{json_coder}->encode (
		2899	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2900	);
		2901
		2902	# try lzf for large packets
		2903	$pkt = "lzf " . Compress::LZF::compress $pkt
		2904	if 1024 <= length $pkt and $self->{can_lzf};
		2905
		2906	# split very large packets
		2907	if (8192 < length $pkt and $self->{can_lzf}) {
		2908	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2909	$pkt = "frag";
		2910	}
		2911
		2912	$self->send_packet ($pkt);
		2913	}
		2914
		2915	=item $client->ext_msg ($type, @msg)
		2916
		2917	Sends an ext event to the client.
		2918
		2919	=cut
		2920
		2921	sub cf::client::ext_msg($$@) {
		2922	my ($self, $type, @msg) = @_;
		2923
		2924	if ($self->extcmd == 2) {
		2925	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2926	} elsif ($self->extcmd == 1) { # TODO: remove
		2927	push @msg, msgtype => "event_$type";
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2929	}
		2930	}
		2931
		2932	=item $client->ext_reply ($msgid, @msg)
		2933
		2934	Sends an ext reply to the client.
		2935
		2936	=cut
		2937
		2938	sub cf::client::ext_reply($$@) {
		2939	my ($self, $id, @msg) = @_;
		2940
		2941	if ($self->extcmd == 2) {
		2942	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2943	} elsif ($self->extcmd == 1) {
		2944	#TODO: version 1, remove
		2945	unshift @msg, msgtype => "reply", msgid => $id;
		2946	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2947	}
		2948	}
1670		2949
1671	=item $success = $client->query ($flags, "text", \&cb)	2950	=item $success = $client->query ($flags, "text", \&cb)
1672		2951
1673	Queues a query to the client, calling the given callback with	2952	Queues a query to the client, calling the given callback with
1674	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2953	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1675	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2954	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1676		2955
1677	Queries can fail, so check the return code. Or don't, as queries will become	2956	Queries can fail, so check the return code. Or don't, as queries will
1678	reliable at some point in the future.	2957	become reliable at some point in the future.
1679		2958
1680	=cut	2959	=cut
1681		2960
1682	sub cf::client::query {	2961	sub cf::client::query {
1683	my ($self, $flags, $text, $cb) = @_;	2962	my ($self, $flags, $text, $cb) = @_;
…		…
1691	utf8::encode $text;	2970	utf8::encode $text;
1692	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2971	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1693		2972
1694	$self->send_packet ($self->{query_queue}[0][0])	2973	$self->send_packet ($self->{query_queue}[0][0])
1695	if @{ $self->{query_queue} } == 1;	2974	if @{ $self->{query_queue} } == 1;
		2975
		2976	1
1696	}	2977	}
1697		2978
1698	cf::client->attach (	2979	cf::client->attach (
		2980	on_connect => sub {
		2981	my ($ns) = @_;
		2982
		2983	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2984	},
1699	on_reply => sub {	2985	on_reply => sub {
1700	my ($ns, $msg) = @_;	2986	my ($ns, $msg) = @_;
1701		2987
1702	# this weird shuffling is so that direct followup queries	2988	# this weird shuffling is so that direct followup queries
1703	# get handled first	2989	# get handled first
1704	my $queue = delete $ns->{query_queue};	2990	my $queue = delete $ns->{query_queue}
		2991	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		2992
1706	(shift @$queue)->[1]->($msg);	2993	(shift @$queue)->[1]->($msg);
		2994	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2995
1708	push @{ $ns->{query_queue} }, @$queue;	2996	push @{ $ns->{query_queue} }, @$queue;
1709		2997
1710	if (@{ $ns->{query_queue} } == @$queue) {	2998	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2999	if (@$queue) {
…		…
1713	} else {	3001	} else {
1714	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3002	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1715	}	3003	}
1716	}	3004	}
1717	},	3005	},
		3006	on_exticmd => sub {
		3007	my ($ns, $buf) = @_;
		3008
		3009	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3010
		3011	if (ref $msg) {
		3012	my ($type, $reply, @payload) =
		3013	"ARRAY" eq ref $msg
		3014	? @$msg
		3015	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3016
		3017	my @reply;
		3018
		3019	if (my $cb = $EXTICMD{$type}) {
		3020	@reply = $cb->($ns, @payload);
		3021	}
		3022
		3023	$ns->ext_reply ($reply, @reply)
		3024	if $reply;
		3025
		3026	} else {
		3027	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3028	}
		3029
		3030	cf::override;
		3031	},
1718	);	3032	);
1719		3033
1720	=item $client->coro (\&cb)	3034	=item $client->async (\&cb)
1721		3035
1722	Create a new coroutine, running the specified callback. The coroutine will	3036	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	3037	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	3038	or loss of connection).
1725		3039
1726	=cut	3040	=cut
1727		3041
1728	sub cf::client::coro {	3042	sub cf::client::async {
1729	my ($self, $cb) = @_;	3043	my ($self, $cb) = @_;
1730		3044
1731	my $coro; $coro = async {	3045	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		3046
1738	$coro->on_destroy (sub {	3047	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	3048	delete $self->{_coro}{$coro+0};
1740	});	3049	});
1741		3050
…		…
1768	our $safe = new Safe "safe";	3077	our $safe = new Safe "safe";
1769	our $safe_hole = new Safe::Hole;	3078	our $safe_hole = new Safe::Hole;
1770		3079
1771	$SIG{FPE} = 'IGNORE';	3080	$SIG{FPE} = 'IGNORE';
1772		3081
1773	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3082	$safe->permit_only (Opcode::opset qw(
		3083	:base_core :base_mem :base_orig :base_math
		3084	grepstart grepwhile mapstart mapwhile
		3085	sort time
		3086	));
1774		3087
1775	# here we export the classes and methods available to script code	3088	# here we export the classes and methods available to script code
1776		3089
1777	=pod	3090	=pod
1778		3091
1779	The following fucntions and emthods are available within a safe environment:	3092	The following functions and methods are available within a safe environment:
1780		3093
1781	cf::object contr pay_amount pay_player map	3094	cf::object
		3095	contr pay_amount pay_player map x y force_find force_add destroy
		3096	insert remove name archname title slaying race decrease split
		3097	value
		3098
1782	cf::object::player player	3099	cf::object::player
1783	cf::player peaceful	3100	player
1784	cf::map trigger	3101
		3102	cf::player
		3103	peaceful
		3104
		3105	cf::map
		3106	trigger
1785		3107
1786	=cut	3108	=cut
1787		3109
1788	for (	3110	for (
1789	["cf::object" => qw(contr pay_amount pay_player map)],	3111	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3112	insert remove inv nrof name archname title slaying race
		3113	decrease split destroy change_exp value msg lore send_msg)],
1790	["cf::object::player" => qw(player)],	3114	["cf::object::player" => qw(player)],
1791	["cf::player" => qw(peaceful)],	3115	["cf::player" => qw(peaceful send_msg)],
1792	["cf::map" => qw(trigger)],	3116	["cf::map" => qw(trigger)],
1793	) {	3117	) {
1794	no strict 'refs';	3118	no strict 'refs';
1795	my ($pkg, @funs) = @$_;	3119	my ($pkg, @funs) = @$_;
1796	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3120	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1813	my ($code, %vars) = @_;	3137	my ($code, %vars) = @_;
1814		3138
1815	my $qcode = $code;	3139	my $qcode = $code;
1816	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3140	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1817	$qcode =~ s/\n/\\n/g;	3141	$qcode =~ s/\n/\\n/g;
		3142
		3143	%vars = (_dummy => 0) unless %vars;
1818		3144
1819	local $_;	3145	local $_;
1820	local @safe::cf::_safe_eval_args = values %vars;	3146	local @safe::cf::_safe_eval_args = values %vars;
1821		3147
1822	my $eval =	3148	my $eval =
…		…
1865	=back	3191	=back
1866		3192
1867	=cut	3193	=cut
1868		3194
1869	#############################################################################	3195	#############################################################################
		3196	# the server's init and main functions
1870		3197
1871	=head2 EXTENSION DATABASE SUPPORT	3198	sub load_facedata($) {
		3199	my ($path) = @_;
1872		3200
1873	Crossfire maintains a very simple database for extension use. It can	3201	# HACK to clear player env face cache, we need some signal framework
1874	currently store anything that can be serialised using Storable, which	3202	# for this (global event?)
1875	excludes objects.	3203	%ext::player_env::MUSIC_FACE_CACHE = ();
1876		3204
1877	The parameter C<$family> should best start with the name of the extension	3205	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1878	using it, it should be unique.
1879		3206
1880	=over 4	3207	warn "loading facedata from $path\n";
1881		3208
1882	=item $hashref = cf::db_get $family	3209	my $facedata;
		3210	0 < aio_load $path, $facedata
		3211	or die "$path: $!";
1883		3212
1884	Return a hashref for use by the extension C<$family>, which can be	3213	$facedata = Coro::Storable::thaw $facedata;
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887		3214
1888	=item $value = cf::db_get $family => $key	3215	$facedata->{version} == 2
		3216	or cf::cleanup "$path: version mismatch, cannot proceed.";
1889		3217
1890	Returns a single value from the database	3218	# patch in the exptable
1891		3219	$facedata->{resource}{"res/exp_table"} = {
1892	=item cf::db_put $family => $hashref	3220	type => FT_RSRC,
1893		3221	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896
1897	=item cf::db_put $family => $key => $value
1898
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909
1910	=cut
1911
1912	our $DB;
1913
1914	{
1915	my $path = cf::localdir . "/database.pst";
1916
1917	sub db_load() {
1918	$DB = stat $path ? Storable::retrieve $path : { };
1919	}
1920
1921	my $pid;
1922
1923	sub db_save() {
1924	waitpid $pid, 0 if $pid;
1925	if (0 == ($pid = fork)) {
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	3222	};
		3223	cf::cede_to_tick;
1943		3224
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}	3225	{
		3226	my $faces = $facedata->{faceinfo};
1948		3227
1949	sub db_get($;$) {	3228	while (my ($face, $info) = each %$faces) {
1950	@_ >= 2	3229	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1951	? $DB->{$_[0]}{$_[1]}
1952	: ($DB->{$_[0]} ||= { })
1953	}
1954		3230
1955	sub db_put($$;$) {	3231	cf::face::set_visibility $idx, $info->{visibility};
1956	if (@_ >= 3) {	3232	cf::face::set_magicmap $idx, $info->{magicmap};
1957	$DB->{$_[0]}{$_[1]} = $_[2];	3233	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1958	} else {	3234	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963		3235
1964	cf::global->attach (	3236	cf::cede_to_tick;
1965	prio => 10000,
1966	on_cleanup => sub {
1967	db_sync;
1968	},	3237	}
1969	);
1970	}
1971		3238
1972	#############################################################################	3239	while (my ($face, $info) = each %$faces) {
1973	# the server's main()	3240	next unless $info->{smooth};
1974		3241
1975	sub cfg_load {	3242	my $idx = cf::face::find $face
		3243	or next;
		3244
		3245	if (my $smooth = cf::face::find $info->{smooth}) {
		3246	cf::face::set_smooth $idx, $smooth;
		3247	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3248	} else {
		3249	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3250	}
		3251
		3252	cf::cede_to_tick;
		3253	}
		3254	}
		3255
		3256	{
		3257	my $anims = $facedata->{animinfo};
		3258
		3259	while (my ($anim, $info) = each %$anims) {
		3260	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3261	cf::cede_to_tick;
		3262	}
		3263
		3264	cf::anim::invalidate_all; # d'oh
		3265	}
		3266
		3267	{
		3268	# TODO: for gcfclient pleasure, we should give resources
		3269	# that gcfclient doesn't grok a >10000 face index.
		3270	my $res = $facedata->{resource};
		3271
		3272	while (my ($name, $info) = each %$res) {
		3273	if (defined $info->{type}) {
		3274	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3275	my $data;
		3276
		3277	if ($info->{type} & 1) {
		3278	# prepend meta info
		3279
		3280	my $meta = $enc->encode ({
		3281	name => $name,
		3282	%{ $info->{meta} || {} },
		3283	});
		3284
		3285	$data = pack "(w/a*)*", $meta, $info->{data};
		3286	} else {
		3287	$data = $info->{data};
		3288	}
		3289
		3290	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3291	cf::face::set_type $idx, $info->{type};
		3292	} else {
		3293	$RESOURCE{$name} = $info;
		3294	}
		3295
		3296	cf::cede_to_tick;
		3297	}
		3298	}
		3299
		3300	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3301
		3302	1
		3303	}
		3304
		3305	cf::global->attach (on_resource_update => sub {
		3306	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3307	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3308
		3309	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3310	my $sound = $soundconf->{compat}[$_]
		3311	or next;
		3312
		3313	my $face = cf::face::find "sound/$sound->[1]";
		3314	cf::sound::set $sound->[0] => $face;
		3315	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3316	}
		3317
		3318	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3319	my $face = cf::face::find "sound/$v";
		3320	cf::sound::set $k => $face;
		3321	}
		3322	}
		3323	});
		3324
		3325	register_exticmd fx_want => sub {
		3326	my ($ns, $want) = @_;
		3327
		3328	while (my ($k, $v) = each %$want) {
		3329	$ns->fx_want ($k, $v);
		3330	}
		3331	};
		3332
		3333	sub load_resource_file($) {
		3334	my $guard = lock_acquire "load_resource_file";
		3335
		3336	my $status = load_resource_file_ $_[0];
		3337	get_slot 0.1, 100;
		3338	cf::arch::commit_load;
		3339
		3340	$status
		3341	}
		3342
		3343	sub reload_regions {
		3344	# HACK to clear player env face cache, we need some signal framework
		3345	# for this (global event?)
		3346	%ext::player_env::MUSIC_FACE_CACHE = ();
		3347
		3348	load_resource_file "$MAPDIR/regions"
		3349	or die "unable to load regions file\n";
		3350
		3351	for (cf::region::list) {
		3352	$_->{match} = qr/$_->{match}/
		3353	if exists $_->{match};
		3354	}
		3355	}
		3356
		3357	sub reload_facedata {
		3358	load_facedata "$DATADIR/facedata"
		3359	or die "unable to load facedata\n";
		3360	}
		3361
		3362	sub reload_archetypes {
		3363	load_resource_file "$DATADIR/archetypes"
		3364	or die "unable to load archetypes\n";
		3365	}
		3366
		3367	sub reload_treasures {
		3368	load_resource_file "$DATADIR/treasures"
		3369	or die "unable to load treasurelists\n";
		3370	}
		3371
		3372	sub reload_resources {
		3373	warn "reloading resource files...\n";
		3374
		3375	reload_facedata;
		3376	reload_archetypes;
		3377	reload_regions;
		3378	reload_treasures;
		3379
		3380	warn "finished reloading resource files\n";
		3381	}
		3382
		3383	sub reload_config {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	3384	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	3385	or return;
1978		3386
1979	local $/;	3387	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	3388	*CFG = YAML::Load <$fh>;
		3389
		3390	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3391
		3392	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3393	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3394
		3395	if (exists $CFG{mlockall}) {
		3396	eval {
		3397	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3398	and die "WARNING: m(un)lockall failed: $!\n";
		3399	};
		3400	warn $@ if $@;
		3401	}
		3402	}
		3403
		3404	sub pidfile() {
		3405	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3406	or die "$PIDFILE: $!";
		3407	flock $fh, &Fcntl::LOCK_EX
		3408	or die "$PIDFILE: flock: $!";
		3409	$fh
		3410	}
		3411
		3412	# make sure only one server instance is running at any one time
		3413	sub atomic {
		3414	my $fh = pidfile;
		3415
		3416	my $pid = <$fh>;
		3417	kill 9, $pid if $pid > 0;
		3418
		3419	seek $fh, 0, 0;
		3420	print $fh $$;
		3421	}
		3422
		3423	sub main_loop {
		3424	warn "EV::loop starting\n";
		3425	if (1) {
		3426	EV::loop;
		3427	}
		3428	warn "EV::loop returned\n";
		3429	goto &main_loop unless $REALLY_UNLOOP;
1981	}	3430	}
1982		3431
1983	sub main {	3432	sub main {
		3433	cf::init_globals; # initialise logging
		3434
		3435	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3436	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3437	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3438	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3439
		3440	cf::init_experience;
		3441	cf::init_anim;
		3442	cf::init_attackmess;
		3443	cf::init_dynamic;
		3444
		3445	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3446
1984	# we must not ever block the main coroutine	3447	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	3448	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3449	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	3450	(async {
1988	Event::one_event;	3451	$Coro::current->{desc} = "IDLE BUG HANDLER";
1989	})->();	3452	EV::loop EV::LOOP_ONESHOT;
		3453	})->prio (Coro::PRIO_MAX);
1990	};	3454	};
1991		3455
1992	cfg_load;	3456	evthread_start IO::AIO::poll_fileno;
1993	db_load;	3457
		3458	cf::sync_job {
		3459	reload_resources;
		3460	reload_config;
		3461	db_init;
		3462
		3463	cf::load_settings;
		3464	cf::load_materials;
		3465	cf::init_uuid;
		3466	cf::init_signals;
		3467	cf::init_commands;
		3468	cf::init_skills;
		3469
		3470	cf::init_beforeplay;
		3471
		3472	atomic;
		3473
1994	load_extensions;	3474	load_extensions;
1995	Event::loop;	3475
		3476	utime time, time, $RUNTIMEFILE;
		3477
		3478	# no (long-running) fork's whatsoever before this point(!)
		3479	use POSIX ();
		3480	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3481
		3482	(pop @POST_INIT)->(0) while @POST_INIT;
		3483	};
		3484
		3485	main_loop;
1996	}	3486	}
1997		3487
1998	#############################################################################	3488	#############################################################################
1999	# initialisation	3489	# initialisation and cleanup
2000		3490
		3491	# install some emergency cleanup handlers
		3492	BEGIN {
		3493	our %SIGWATCHER = ();
		3494	for my $signal (qw(INT HUP TERM)) {
		3495	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3496	cf::cleanup "SIG$signal";
		3497	};
		3498	}
		3499	}
		3500
		3501	sub write_runtime_sync {
		3502	# first touch the runtime file to show we are still running:
		3503	# the fsync below can take a very very long time.
		3504
		3505	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3506
		3507	my $guard = cf::lock_acquire "write_runtime";
		3508
		3509	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3510	or return;
		3511
		3512	my $value = $cf::RUNTIME + 90 + 10;
		3513	# 10 is the runtime save interval, for a monotonic clock
		3514	# 60 allows for the watchdog to kill the server.
		3515
		3516	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3517	and return;
		3518
		3519	# always fsync - this file is important
		3520	aio_fsync $fh
		3521	and return;
		3522
		3523	# touch it again to show we are up-to-date
		3524	aio_utime $fh, undef, undef;
		3525
		3526	close $fh
		3527	or return;
		3528
		3529	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3530	and return;
		3531
		3532	warn "runtime file written.\n";
		3533
		3534	1
		3535	}
		3536
		3537	our $uuid_lock;
		3538	our $uuid_skip;
		3539
		3540	sub write_uuid_sync($) {
		3541	$uuid_skip ||= $_[0];
		3542
		3543	return if $uuid_lock;
		3544	local $uuid_lock = 1;
		3545
		3546	my $uuid = "$LOCALDIR/uuid";
		3547
		3548	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3549	or return;
		3550
		3551	my $value = uuid_seq uuid_cur;
		3552
		3553	unless ($value) {
		3554	warn "cowardly refusing to write zero uuid value!\n";
		3555	return;
		3556	}
		3557
		3558	my $value = uuid_str $value + $uuid_skip;
		3559	$uuid_skip = 0;
		3560
		3561	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3562	and return;
		3563
		3564	# always fsync - this file is important
		3565	aio_fsync $fh
		3566	and return;
		3567
		3568	close $fh
		3569	or return;
		3570
		3571	aio_rename "$uuid~", $uuid
		3572	and return;
		3573
		3574	warn "uuid file written ($value).\n";
		3575
		3576	1
		3577
		3578	}
		3579
		3580	sub write_uuid($$) {
		3581	my ($skip, $sync) = @_;
		3582
		3583	$sync ? write_uuid_sync $skip
		3584	: async { write_uuid_sync $skip };
		3585	}
		3586
		3587	sub emergency_save() {
		3588	my $freeze_guard = cf::freeze_mainloop;
		3589
		3590	warn "emergency_perl_save: enter\n";
		3591
		3592	cf::sync_job {
		3593	# this is a trade-off: we want to be very quick here, so
		3594	# save all maps without fsync, and later call a global sync
		3595	# (which in turn might be very very slow)
		3596	local $USE_FSYNC = 0;
		3597
		3598	# use a peculiar iteration method to avoid tripping on perl
		3599	# refcount bugs in for. also avoids problems with players
		3600	# and maps saved/destroyed asynchronously.
		3601	warn "emergency_perl_save: begin player save\n";
		3602	for my $login (keys %cf::PLAYER) {
		3603	my $pl = $cf::PLAYER{$login} or next;
		3604	$pl->valid or next;
		3605	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3606	$pl->save;
		3607	}
		3608	warn "emergency_perl_save: end player save\n";
		3609
		3610	warn "emergency_perl_save: begin map save\n";
		3611	for my $path (keys %cf::MAP) {
		3612	my $map = $cf::MAP{$path} or next;
		3613	$map->valid or next;
		3614	$map->save;
		3615	}
		3616	warn "emergency_perl_save: end map save\n";
		3617
		3618	warn "emergency_perl_save: begin database checkpoint\n";
		3619	BDB::db_env_txn_checkpoint $DB_ENV;
		3620	warn "emergency_perl_save: end database checkpoint\n";
		3621
		3622	warn "emergency_perl_save: begin write uuid\n";
		3623	write_uuid_sync 1;
		3624	warn "emergency_perl_save: end write uuid\n";
		3625	};
		3626
		3627	warn "emergency_perl_save: starting sync()\n";
		3628	IO::AIO::aio_sync sub {
		3629	warn "emergency_perl_save: finished sync()\n";
		3630	};
		3631
		3632	warn "emergency_perl_save: leave\n";
		3633	}
		3634
		3635	sub post_cleanup {
		3636	my ($make_core) = @_;
		3637
		3638	warn Carp::longmess "post_cleanup backtrace"
		3639	if $make_core;
		3640
		3641	my $fh = pidfile;
		3642	unlink $PIDFILE if <$fh> == $$;
		3643	}
		3644
		3645	# a safer delete_package, copied from Symbol
		3646	sub clear_package($) {
		3647	my $pkg = shift;
		3648
		3649	# expand to full symbol table name if needed
		3650	unless ($pkg =~ /^main::.*::$/) {
		3651	$pkg = "main$pkg" if $pkg =~ /^::/;
		3652	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3653	$pkg .= '::' unless $pkg =~ /::$/;
		3654	}
		3655
		3656	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3657	my $stem_symtab = *{$stem}{HASH};
		3658
		3659	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3660	or return;
		3661
		3662	# clear all symbols
		3663	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3664	for my $name (keys %$leaf_symtab) {
		3665	_gv_clear *{"$pkg$name"};
		3666	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3667	}
		3668	warn "cleared package $pkg\n";#d#
		3669	}
		3670
2001	sub reload() {	3671	sub do_reload_perl() {
2002	# can/must only be called in main	3672	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	3673	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	3674	warn "can only reload from main coroutine";
2005	return;	3675	return;
2006	}	3676	}
2007		3677
		3678	return if $RELOAD++;
		3679
		3680	my $t1 = EV::time;
		3681
		3682	while ($RELOAD) {
2008	warn "reloading...";	3683	warn "reloading...";
2009		3684
2010	local $FREEZE = 1;	3685	warn "entering sync_job";
		3686
		3687	cf::sync_job {
		3688	cf::write_runtime_sync; # external watchdog should not bark
2011	cf::emergency_save;	3689	cf::emergency_save;
		3690	cf::write_runtime_sync; # external watchdog should not bark
2012		3691
2013	eval {	3692	warn "syncing database to disk";
		3693	BDB::db_env_txn_checkpoint $DB_ENV;
		3694
2014	# if anything goes wrong in here, we should simply crash as we already saved	3695	# if anything goes wrong in here, we should simply crash as we already saved
2015		3696
2016	# cancel all watchers	3697	warn "flushing outstanding aio requests";
2017	for (Event::all_watchers) {	3698	while (IO::AIO::nreqs || BDB::nreqs) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	3699	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2019	}
2020
2021	# cancel all extension coros
2022	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();
2024
2025	# unload all extensions
2026	for (@exts) {
2027	warn "unloading <$_>";
2028	unload_extension $_;
2029	}
2030
2031	# unload all modules loaded from $LIBDIR
2032	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034
2035	warn "removing <$k>";
2036	delete $INC{$k};
2037
2038	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;
2040
2041	if (my $cb = $k->can ("unload_module")) {
2042	$cb->();
2043	}	3700	}
2044		3701
2045	Symbol::delete_package $k;	3702	warn "cancelling all extension coros";
		3703	$_->cancel for values %EXT_CORO;
		3704	%EXT_CORO = ();
		3705
		3706	warn "removing commands";
		3707	%COMMAND = ();
		3708
		3709	warn "removing ext/exti commands";
		3710	%EXTCMD = ();
		3711	%EXTICMD = ();
		3712
		3713	warn "unloading/nuking all extensions";
		3714	for my $pkg (@EXTS) {
		3715	warn "... unloading $pkg";
		3716
		3717	if (my $cb = $pkg->can ("unload")) {
		3718	eval {
		3719	$cb->($pkg);
		3720	1
		3721	} or warn "$pkg unloaded, but with errors: $@";
		3722	}
		3723
		3724	warn "... clearing $pkg";
		3725	clear_package $pkg;
2046	}	3726	}
2047		3727
2048	# sync database to disk	3728	warn "unloading all perl modules loaded from $LIBDIR";
2049	cf::db_sync;	3729	while (my ($k, $v) = each %INC) {
2050	IO::AIO::flush;	3730	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2051		3731
		3732	warn "... unloading $k";
		3733	delete $INC{$k};
		3734
		3735	$k =~ s/\.pm$//;
		3736	$k =~ s/\//::/g;
		3737
		3738	if (my $cb = $k->can ("unload_module")) {
		3739	$cb->();
		3740	}
		3741
		3742	clear_package $k;
		3743	}
		3744
2052	# get rid of safe::, as good as possible	3745	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	3746	clear_package "safe::$_"
2054	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3747	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2055		3748
2056	# remove register_script_function callbacks	3749	warn "unloading cf.pm \"a bit\"";
2057	# TODO
2058
2059	# unload cf.pm "a bit"
2060	delete $INC{"cf.pm"};	3750	delete $INC{"cf.pm"};
		3751	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2061		3752
2062	# don't, removes xs symbols, too,	3753	# don't, removes xs symbols, too,
2063	# and global variables created in xs	3754	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	3755	#clear_package __PACKAGE__;
2065		3756
2066	# reload cf.pm	3757	warn "unload completed, starting to reload now";
		3758
2067	warn "reloading cf.pm";	3759	warn "reloading cf.pm";
2068	require cf;	3760	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3761	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		3762
2071	# load config and database again	3763	warn "loading config and database again";
2072	cf::cfg_load;	3764	cf::reload_config;
2073	cf::db_load;
2074		3765
2075	# load extensions
2076	warn "load extensions";	3766	warn "loading extensions";
2077	cf::load_extensions;	3767	cf::load_extensions;
2078		3768
2079	# reattach attachments to objects	3769	if ($REATTACH_ON_RELOAD) {
		3770	warn "reattaching attachments to objects/players";
		3771	_global_reattach; # objects, sockets
		3772	warn "reattaching attachments to maps";
		3773	reattach $_ for values %MAP;
		3774	warn "reattaching attachments to players";
		3775	reattach $_ for values %PLAYER;
		3776	}
		3777
		3778	warn "running post_init jobs";
		3779	(pop @POST_INIT)->(1) while @POST_INIT;
		3780
		3781	warn "leaving sync_job";
		3782
		3783	1
		3784	} or do {
		3785	warn $@;
		3786	cf::cleanup "error while reloading, exiting.";
		3787	};
		3788
2080	warn "reattach";	3789	warn "reloaded";
2081	_global_reattach;	3790	--$RELOAD;
		3791	}
		3792
		3793	$t1 = EV::time - $t1;
		3794	warn "reload completed in ${t1}s\n";
		3795	};
		3796
		3797	our $RELOAD_WATCHER; # used only during reload
		3798
		3799	sub reload_perl() {
		3800	# doing reload synchronously and two reloads happen back-to-back,
		3801	# coro crashes during coro_state_free->destroy here.
		3802
		3803	$RELOAD_WATCHER ||= cf::async {
		3804	Coro::AIO::aio_wait cache_extensions;
		3805
		3806	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3807	do_reload_perl;
		3808	undef $RELOAD_WATCHER;
		3809	};
2082	};	3810	};
2083
2084	if ($@) {
2085	warn $@;
2086	warn "error while reloading, exiting.";
2087	exit 1;
2088	}
2089
2090	warn "reloaded successfully";
2091	};
2092
2093	#############################################################################
2094
2095	unless ($LINK_MAP) {
2096	$LINK_MAP = cf::map::new;
2097
2098	$LINK_MAP->width (41);
2099	$LINK_MAP->height (41);
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,
2108	cb => sub {
2109	$_[0]->w->cancel;
2110
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});
2129
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	3811	}
2135
2136	register "<global>", __PACKAGE__;
2137		3812
2138	register_command "reload" => sub {	3813	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	3814	my ($who, $arg) = @_;
2140		3815
2141	if ($who->flag (FLAG_WIZ)) {	3816	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	3817	$who->message ("reloading server.");
		3818	async {
		3819	$Coro::current->{desc} = "perl_reload";
		3820	reload_perl;
		3821	};
2145	}	3822	}
2146	};	3823	};
2147		3824
2148	unshift @INC, $LIBDIR;	3825	unshift @INC, $LIBDIR;
2149		3826
2150	$TICK_WATCHER = Event->timer (	3827	my $bug_warning = 0;
2151	reentrant => 0,	3828
2152	prio => 0,	3829	our @WAIT_FOR_TICK;
2153	at => $NEXT_TICK || $TICK,	3830	our @WAIT_FOR_TICK_BEGIN;
2154	data => WF_AUTOCANCEL,	3831
2155	cb => sub {	3832	sub wait_for_tick {
2156	unless ($FREEZE) {	3833	return if tick_inhibit || $Coro::current == $Coro::main;
		3834
		3835	my $signal = new Coro::Signal;
		3836	push @WAIT_FOR_TICK, $signal;
		3837	$signal->wait;
		3838	}
		3839
		3840	sub wait_for_tick_begin {
		3841	return if tick_inhibit || $Coro::current == $Coro::main;
		3842
		3843	my $signal = new Coro::Signal;
		3844	push @WAIT_FOR_TICK_BEGIN, $signal;
		3845	$signal->wait;
		3846	}
		3847
		3848	sub tick {
		3849	if ($Coro::current != $Coro::main) {
		3850	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3851	unless ++$bug_warning > 10;
		3852	return;
		3853	}
		3854
2157	cf::server_tick; # one server iteration	3855	cf::server_tick; # one server iteration
2158	$RUNTIME += $TICK;
2159	}
2160		3856
2161	$NEXT_TICK += $TICK;	3857	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2162		3858	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2163	# if we are delayed by four ticks or more, skip them all	3859	Coro::async_pool {
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3860	$Coro::current->{desc} = "runtime saver";
2165
2166	$TICK_WATCHER->at ($NEXT_TICK);
2167	$TICK_WATCHER->start;
2168	},
2169	);
2170
2171	IO::AIO::max_poll_time $TICK * 0.2;
2172
2173	Event->io (
2174	fd => IO::AIO::poll_fileno,
2175	poll => 'r',
2176	prio => 5,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,
2183	after => 0,
2184	interval => 10,
2185	cb => sub {
2186	(Coro::unblock_sub {
2187	write_runtime	3861	write_runtime_sync
2188	or warn "ERROR: unable to write runtime file: $!";	3862	or warn "ERROR: unable to write runtime file: $!";
2189	})->();	3863	};
2190	},	3864	}
2191	);	3865
		3866	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3867	$sig->send;
		3868	}
		3869	while (my $sig = shift @WAIT_FOR_TICK) {
		3870	$sig->send;
		3871	}
		3872
		3873	$LOAD = ($NOW - $TICK_START) / $TICK;
		3874	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3875
		3876	if (0) {
		3877	if ($NEXT_TICK) {
		3878	my $jitter = $TICK_START - $NEXT_TICK;
		3879	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3880	warn "jitter $JITTER\n";#d#
		3881	}
		3882	}
		3883	}
		3884
		3885	{
		3886	# configure BDB
		3887
		3888	BDB::min_parallel 8;
		3889	BDB::max_poll_reqs $TICK * 0.1;
		3890	$AnyEvent::BDB::WATCHER->priority (1);
		3891
		3892	unless ($DB_ENV) {
		3893	$DB_ENV = BDB::db_env_create;
		3894	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3895	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3896	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3897	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3898	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3899
		3900	cf::sync_job {
		3901	eval {
		3902	BDB::db_env_open
		3903	$DB_ENV,
		3904	$BDBDIR,
		3905	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3906	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3907	0666;
		3908
		3909	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3910	};
		3911
		3912	cf::cleanup "db_env_open(db): $@" if $@;
		3913	};
		3914	}
		3915
		3916	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3917	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3918	};
		3919	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3920	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3921	};
		3922	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3923	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3924	};
		3925	}
		3926
		3927	{
		3928	# configure IO::AIO
		3929
		3930	IO::AIO::min_parallel 8;
		3931	IO::AIO::max_poll_time $TICK * 0.1;
		3932	undef $AnyEvent::AIO::WATCHER;
		3933	}
		3934
		3935	my $_log_backtrace;
		3936
		3937	sub _log_backtrace {
		3938	my ($msg, @addr) = @_;
		3939
		3940	$msg =~ s/\n//;
		3941
		3942	# limit the # of concurrent backtraces
		3943	if ($_log_backtrace < 2) {
		3944	++$_log_backtrace;
		3945	my $perl_bt = Carp::longmess $msg;
		3946	async {
		3947	$Coro::current->{desc} = "abt $msg";
		3948
		3949	my @bt = fork_call {
		3950	@addr = map { sprintf "%x", $_ } @addr;
		3951	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3952	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3953	or die "addr2line: $!";
		3954
		3955	my @funcs;
		3956	my @res = <$fh>;
		3957	chomp for @res;
		3958	while (@res) {
		3959	my ($func, $line) = splice @res, 0, 2, ();
		3960	push @funcs, "[$func] $line";
		3961	}
		3962
		3963	@funcs
		3964	};
		3965
		3966	LOG llevInfo, "[ABT] $perl_bt\n";
		3967	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3968	LOG llevInfo, "[ABT] $_\n" for @bt;
		3969	--$_log_backtrace;
		3970	};
		3971	} else {
		3972	LOG llevInfo, "[ABT] $msg\n";
		3973	LOG llevInfo, "[ABT] [suppressed]\n";
		3974	}
		3975	}
		3976
		3977	# load additional modules
		3978	require "cf/$_.pm" for @EXTRA_MODULES;
		3979
		3980	END { cf::emergency_save }
2192		3981
2193	1	3982	1
2194		3983

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