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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.123 by root, Tue Jan 2 19:18:33 2007 UTC vs.
Revision 1.453 by root, Tue Sep 23 04:29:11 2008 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 "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
13	use Coro 3.3;	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
		52	use BDB ();
		53	use Data::Dumper;
20	use Digest::MD5;	54	use Digest::MD5;
21	use Fcntl;	55	use Fcntl;
		56	use YAML ();
22	use IO::AIO 2.31 ();	57	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
25		61
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	62	AnyEvent::detect;
27		63
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	64	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		68
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	# make sure c-lzf reinitialises itself
		72	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
32		74
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		76
35	our %COMMAND = ();	77	our %COMMAND = ();
36	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
		79
		80	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
		83	our %EXT_CORO = (); # coroutines bound to extensions
		84	our %EXT_MAP = (); # pluggable maps
38		85
		86	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	87	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		88
42	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	90	our $DATADIR = datadir;
		91	our $LIBDIR = "$DATADIR/ext";
		92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
		104
		105	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	107	our $NEXT_TICK;
45	our $NOW;	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
		112	our $BDB_TRICKLE_WATCHER;
		113	our $DB_ENV;
46		114
47	our %CFG;	115	our %CFG;
48		116
49	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
51		120
52	our %MAP; # all maps	121	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	122	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	123	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	124
56	our %EXT_CORO;	125	# used to convert map paths into valid unix filenames by replacing / by ∕
		126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		127
		128	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		129	our $LOADAVG; # same thing, but with alpha-smoothing
		130	our $JITTER; # average jitter
		131	our $TICK_START; # for load detecting purposes
		132
		133	our @POST_INIT;
57		134
58	binmode STDOUT;	135	binmode STDOUT;
59	binmode STDERR;	136	binmode STDERR;
60		137
61	# read virtual server time, if available	138	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	139	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	140	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	141	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	142	$RUNTIME = <$fh> + 0.;
66	}	143	}
67		144
68	mkdir cf::localdir;	145	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	146	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		147
74	# a special map that is always available	148	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		149
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	150	sub cf::map::normalise;
78		151
79	#############################################################################	152	#############################################################################
80		153
81	=head2 GLOBAL VARIABLES	154	=head2 GLOBAL VARIABLES
82		155
…		…
89	=item $cf::RUNTIME	162	=item $cf::RUNTIME
90		163
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	164	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	165	every server tick.
93		166
94	=item $cf::LIBDIR	167	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		168	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		169	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		170
96	The perl library directory, where extensions and cf-specific modules can	171	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	172	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		173	unique-items directory, player file directory, random maps directory and
		174	database environment.
98		175
99	=item $cf::NOW	176	=item $cf::NOW
100		177
101	The time of the last (current) server tick.	178	The time of the last (current) server tick.
102		179
103	=item $cf::TICK	180	=item $cf::TICK
104		181
105	The interval between server ticks, in seconds.	182	The interval between server ticks, in seconds.
106		183
		184	=item $cf::LOADAVG
		185
		186	The current CPU load on the server (alpha-smoothed), as a value between 0
		187	(none) and 1 (overloaded), indicating how much time is spent on processing
		188	objects per tick. Healthy values are < 0.5.
		189
		190	=item $cf::LOAD
		191
		192	The raw value load value from the last tick.
		193
107	=item %cf::CFG	194	=item %cf::CFG
108		195
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	196	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	197	from wherever your confdir points to.
		198
		199	=item cf::wait_for_tick, cf::wait_for_tick_begin
		200
		201	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		202	returns directly I<after> the tick processing (and consequently, can only wake one process
		203	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		204
		205	=item @cf::INVOKE_RESULTS
		206
		207	This array contains the results of the last C<invoke ()> call. When
		208	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		209	that call.
111		210
112	=back	211	=back
113		212
114	=cut	213	=cut
115		214
116	BEGIN {	215	BEGIN {
117	*CORE::GLOBAL::warn = sub {	216	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	217	my $msg = join "", @_;
119	utf8::encode $msg;
120		218
121	$msg .= "\n"	219	$msg .= "\n"
122	unless $msg =~ /\n$/;	220	unless $msg =~ /\n$/;
123		221
		222	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		223
124	LOG llevError, "cfperl: $msg";	224	LOG llevError, $msg;
125	};	225	};
126	}	226	}
		227
		228	$Coro::State::DIEHOOK = sub {
		229	return unless $^S eq 0; # "eq", not "=="
		230
		231	if ($Coro::current == $Coro::main) {#d#
		232	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		233	return;#d#
		234	}#d#
		235
		236	# kill coroutine otherwise
		237	warn Carp::longmess $_[0];
		238	Coro::terminate
		239	};
		240
		241	$SIG{__DIE__} = sub { }; #d#?
127		242
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	243	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	244	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	245	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	246	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	247	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		248	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	249	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		250
135	# we bless all objects into (empty) derived classes to force a method lookup	251	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	252	# within the Safe compartment.
137	for my $pkg (qw(	253	for my $pkg (qw(
138	cf::global cf::attachable	254	cf::global cf::attachable
139	cf::object cf::object::player	255	cf::object cf::object::player
140	cf::client cf::player	256	cf::client cf::player
141	cf::arch cf::living	257	cf::arch cf::living
		258	cf::map cf::mapspace
142	cf::map cf::party cf::region	259	cf::party cf::region
143	)) {	260	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	261	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	262	}
147		263
148	$Event::DIED = sub {	264	$EV::DIED = sub {
149	warn "error in event callback: @_";	265	warn "error in event callback: @_";
150	};	266	};
151		267
152	my %ext_pkg;	268	#############################################################################
153	my @exts;
154	my @hook;
155		269
156	=head2 UTILITY FUNCTIONS	270	=head2 UTILITY FUNCTIONS
157		271
158	=over 4	272	=over 4
159		273
160	=cut	274	=item dumpval $ref
161		275
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	276	=cut
163		277
		278	sub dumpval {
		279	eval {
		280	local $SIG{__DIE__};
		281	my $d;
		282	if (1) {
		283	$d = new Data::Dumper([$_[0]], ["*var"]);
		284	$d->Terse(1);
		285	$d->Indent(2);
		286	$d->Quotekeys(0);
		287	$d->Useqq(1);
		288	#$d->Bless(...);
		289	$d->Seen($_[1]) if @_ > 1;
		290	$d = $d->Dump();
		291	}
		292	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		293	$d
		294	} || "[unable to dump $_[0]: '$@']";
		295	}
		296
164	=item $ref = cf::from_json $json	297	=item $ref = cf::decode_json $json
165		298
166	Converts a JSON string into the corresponding perl data structure.	299	Converts a JSON string into the corresponding perl data structure.
167		300
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	301	=item $json = cf::encode_json $ref
176		302
177	Converts a perl data structure into its JSON representation.	303	Converts a perl data structure into its JSON representation.
178		304
179	=cut	305	=cut
180		306
181	sub to_json($) {	307	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		308
186	=item my $guard = cf::guard { BLOCK }	309	sub encode_json($) { $json_coder->encode ($_[0]) }
		310	sub decode_json($) { $json_coder->decode ($_[0]) }
187		311
188	Run the given callback when the guard object gets destroyed (useful for	312	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		313
191	You can call C<< ->cancel >> on the guard object to stop the block from	314	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	315	but I<before> the server starts ticking again.
193		316
194	=cut	317	The cdoeblock will have a single boolean argument to indicate whether this
		318	is a reload or not.
195		319
196	sub guard(&) {	320	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		321
200	sub cf::guard::cancel {	322	sub post_init(&) {
201	${$_[0]} = sub { };	323	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	324	}
207		325
208	=item cf::lock_wait $string	326	=item cf::lock_wait $string
209		327
210	Wait until the given lock is available. See cf::lock_acquire.	328	Wait until the given lock is available. See cf::lock_acquire.
211		329
212	=item my $lock = cf::lock_acquire $string	330	=item my $lock = cf::lock_acquire $string
213		331
214	Wait until the given lock is available and then acquires it and returns	332	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,	333	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	334	for example when the coroutine gets canceled), the lock is automatically
217	returned.	335	returned.
218		336
		337	Locks are *not* recursive, locking from the same coro twice results in a
		338	deadlocked coro.
		339
219	Lock names should begin with a unique identifier (for example, find_map	340	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	341	uses map_find and cf::map::load uses map_load).
		342
		343	=item $locked = cf::lock_active $string
		344
		345	Return true if the lock is currently active, i.e. somebody has locked it.
221		346
222	=cut	347	=cut
223		348
224	our %LOCK;	349	our %LOCK;
		350	our %LOCKER;#d#
225		351
226	sub lock_wait($) {	352	sub lock_wait($) {
227	my ($key) = @_;	353	my ($key) = @_;
228		354
		355	if ($LOCKER{$key} == $Coro::current) {#d#
		356	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		357	return;#d#
		358	}#d#
		359
229	# wait for lock, if any	360	# wait for lock, if any
230	while ($LOCK{$key}) {	361	while ($LOCK{$key}) {
		362	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
231	push @{ $LOCK{$key} }, $Coro::current;	363	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	364	Coro::schedule;
233	}	365	}
234	}	366	}
235		367
…		…
238		370
239	# wait, to be sure we are not locked	371	# wait, to be sure we are not locked
240	lock_wait $key;	372	lock_wait $key;
241		373
242	$LOCK{$key} = [];	374	$LOCK{$key} = [];
		375	$LOCKER{$key} = $Coro::current;#d#
243		376
244	cf::guard {	377	Coro::guard {
		378	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	379	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	380	$_->ready for @{ delete $LOCK{$key} };
247	}	381	}
248	}	382	}
249		383
		384	sub lock_active($) {
		385	my ($key) = @_;
		386
		387	! ! $LOCK{$key}
		388	}
		389
		390	sub freeze_mainloop {
		391	tick_inhibit_inc;
		392
		393	Coro::guard \&tick_inhibit_dec;
		394	}
		395
		396	=item cf::periodic $interval, $cb
		397
		398	Like EV::periodic, but randomly selects a starting point so that the actions
		399	get spread over timer.
		400
		401	=cut
		402
		403	sub periodic($$) {
		404	my ($interval, $cb) = @_;
		405
		406	my $start = rand List::Util::min 180, $interval;
		407
		408	EV::periodic $start, $interval, 0, $cb
		409	}
		410
		411	=item cf::get_slot $time[, $priority[, $name]]
		412
		413	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		414	This call blocks and returns only when you have at least C<$time> seconds
		415	of cpu time till the next tick. The slot is only valid till the next cede.
		416
		417	The optional C<$name> can be used to identify the job to run. It might be
		418	used for statistical purposes and should identify the same time-class.
		419
		420	Useful for short background jobs.
		421
		422	=cut
		423
		424	our @SLOT_QUEUE;
		425	our $SLOT_QUEUE;
		426
		427	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		428	$SLOT_QUEUE = Coro::async {
		429	$Coro::current->desc ("timeslot manager");
		430
		431	my $signal = new Coro::Signal;
		432
		433	while () {
		434	next_job:
		435	my $avail = cf::till_tick;
		436	if ($avail > 0.01) {
		437	for (0 .. $#SLOT_QUEUE) {
		438	if ($SLOT_QUEUE[$_][0] < $avail) {
		439	my $job = splice @SLOT_QUEUE, $_, 1, ();
		440	$job->[2]->send;
		441	Coro::cede;
		442	goto next_job;
		443	}
		444	}
		445	}
		446
		447	if (@SLOT_QUEUE) {
		448	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		449	push @cf::WAIT_FOR_TICK, $signal;
		450	$signal->wait;
		451	} else {
		452	Coro::schedule;
		453	}
		454	}
		455	};
		456
		457	sub get_slot($;$$) {
		458	return if tick_inhibit || $Coro::current == $Coro::main;
		459
		460	my ($time, $pri, $name) = @_;
		461
		462	$time = $TICK * .6 if $time > $TICK * .6;
		463	my $sig = new Coro::Signal;
		464
		465	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		466	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		467	$SLOT_QUEUE->ready;
		468	$sig->wait;
		469	}
		470
		471	=item cf::async { BLOCK }
		472
		473	Currently the same as Coro::async_pool, meaning you cannot use
		474	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		475	thing you are allowed to do is call C<prio> on it.
		476
		477	=cut
		478
		479	BEGIN { *async = \&Coro::async_pool }
		480
250	=item cf::sync_job { BLOCK }	481	=item cf::sync_job { BLOCK }
251		482
252	The design of crossfire+ requires that the main coro ($Coro::main) is	483	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	484	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	485	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		486	acceptable.
255		487
256	If it must be done, put the blocking parts into C<sync_job>. This will run	488	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	489	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	490	server will be frozen during this time, so the block should either finish
259	fast or be very important.	491	fast or be very important.
…		…
262		494
263	sub sync_job(&) {	495	sub sync_job(&) {
264	my ($job) = @_;	496	my ($job) = @_;
265		497
266	if ($Coro::current == $Coro::main) {	498	if ($Coro::current == $Coro::main) {
		499	my $time = EV::time;
		500
267	# this is the main coro, too bad, we have to block	501	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	502	# till the operation succeeds, freezing the server :/
269		503
270	# TODO: use suspend/resume instead	504	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	505
272	local $FREEZE = 1;	506	my $freeze_guard = freeze_mainloop;
273		507
274	my $busy = 1;	508	my $busy = 1;
275	my @res;	509	my @res;
276		510
277	(Coro::async {	511	(async {
		512	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	513	@res = eval { $job->() };
279	warn $@ if $@;	514	warn $@ if $@;
280	undef $busy;	515	undef $busy;
281	})->prio (Coro::PRIO_MAX);	516	})->prio (Coro::PRIO_MAX);
282		517
283	while ($busy) {	518	while ($busy) {
		519	if (Coro::nready) {
284	Coro::cede_notself;	520	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	521	} else {
		522	EV::loop EV::LOOP_ONESHOT;
286	}	523	}
		524	}
		525
		526	my $time = EV::time - $time;
		527
		528	$TICK_START += $time; # do not account sync jobs to server load
287		529
288	wantarray ? @res : $res[0]	530	wantarray ? @res : $res[0]
289	} else {	531	} else {
290	# we are in another coroutine, how wonderful, everything just works	532	# we are in another coroutine, how wonderful, everything just works
291		533
292	$job->()	534	$job->()
293	}	535	}
294	}	536	}
295		537
296	=item $coro = cf::coro { BLOCK }	538	=item $coro = cf::async_ext { BLOCK }
297		539
298	Creates and returns a new coro. This coro is automcatially being canceled	540	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	541	extension calling this is being unloaded.
300		542
301	=cut	543	=cut
302		544
303	sub coro(&) {	545	sub async_ext(&) {
304	my $cb = shift;	546	my $cb = shift;
305		547
306	my $coro; $coro = async {	548	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		549
313	$coro->on_destroy (sub {	550	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	551	delete $EXT_CORO{$coro+0};
315	});	552	});
316	$EXT_CORO{$coro+0} = $coro;	553	$EXT_CORO{$coro+0} = $coro;
317		554
318	$coro	555	$coro
319	}	556	}
320		557
321	sub write_runtime {	558	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		559
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	560	Executes the given code block with the given arguments in a seperate
325	or return;	561	process, returning the results. Everything must be serialisable with
		562	Coro::Storable. May, of course, block. Note that the executed sub may
		563	never block itself or use any form of event handling.
326		564
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	565	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		566
331	aio_fsync $fh	567	sub fork_call(&@) {
332	and return;	568	my ($cb, @args) = @_;
333		569
334	close $fh	570	# we seemingly have to make a local copy of the whole thing,
335	or return;	571	# otherwise perl prematurely frees the stuff :/
		572	# TODO: investigate and fix (likely this will be rather laborious)
336		573
337	aio_rename "$runtime~", $runtime	574	my @res = Coro::Util::fork_eval {
338	and return;	575	reset_signals;
		576	&$cb
		577	}, @args;
339		578
		579	wantarray ? @res : $res[-1]
		580	}
		581
		582	=item $coin = coin_from_name $name
		583
		584	=cut
		585
		586	our %coin_alias = (
		587	"silver" => "silvercoin",
		588	"silvercoin" => "silvercoin",
		589	"silvercoins" => "silvercoin",
		590	"gold" => "goldcoin",
		591	"goldcoin" => "goldcoin",
		592	"goldcoins" => "goldcoin",
		593	"platinum" => "platinacoin",
		594	"platinumcoin" => "platinacoin",
		595	"platinumcoins" => "platinacoin",
		596	"platina" => "platinacoin",
		597	"platinacoin" => "platinacoin",
		598	"platinacoins" => "platinacoin",
		599	"royalty" => "royalty",
		600	"royalties" => "royalty",
		601	);
		602
		603	sub coin_from_name($) {
		604	$coin_alias{$_[0]}
		605	? cf::arch::find $coin_alias{$_[0]}
		606	: undef
		607	}
		608
		609	=item $value = cf::db_get $family => $key
		610
		611	Returns a single value from the environment database.
		612
		613	=item cf::db_put $family => $key => $value
		614
		615	Stores the given C<$value> in the family. It can currently store binary
		616	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		617
		618	=item $db = cf::db_table "name"
		619
		620	Create and/or open a new database table. The string must not be "db" and must be unique
		621	within each server.
		622
		623	=cut
		624
		625	sub db_table($) {
		626	my ($name) = @_;
		627	my $db = BDB::db_create $DB_ENV;
		628
		629	eval {
		630	$db->set_flags (BDB::CHKSUM);
		631
		632	utf8::encode $name;
		633	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		634	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		635	cf::cleanup "db_open(db): $!" if $!;
		636	};
		637	cf::cleanup "db_open(db): $@" if $@;
		638
		639	$db
		640	}
		641
		642	our $DB;
		643
		644	sub db_init {
		645	cf::sync_job {
		646	$DB ||= db_table "db";
		647	};
		648	}
		649
		650	sub db_get($$) {
		651	my $key = "$_[0]/$_[1]";
		652
		653	cf::sync_job {
		654	BDB::db_get $DB, undef, $key, my $data;
		655
		656	$! ? ()
		657	: $data
340	1	658	}
		659	}
		660
		661	sub db_put($$$) {
		662	BDB::dbreq_pri 4;
		663	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		664	}
		665
		666	=item cf::cache $id => [$paths...], $processversion => $process
		667
		668	Generic caching function that returns the value of the resource $id,
		669	caching and regenerating as required.
		670
		671	This function can block.
		672
		673	=cut
		674
		675	sub cache {
		676	my ($id, $src, $processversion, $process) = @_;
		677
		678	my $meta =
		679	join "\x00",
		680	$processversion,
		681	map {
		682	aio_stat $_
		683	and Carp::croak "$_: $!";
		684
		685	($_, (stat _)[7,9])
		686	} @$src;
		687
		688	my $dbmeta = db_get cache => "$id/meta";
		689	if ($dbmeta ne $meta) {
		690	# changed, we may need to process
		691
		692	my @data;
		693	my $md5;
		694
		695	for (0 .. $#$src) {
		696	0 <= aio_load $src->[$_], $data[$_]
		697	or Carp::croak "$src->[$_]: $!";
		698	}
		699
		700	# if processing is expensive, check
		701	# checksum first
		702	if (1) {
		703	$md5 =
		704	join "\x00",
		705	$processversion,
		706	map {
		707	cf::cede_to_tick;
		708	($src->[$_], Digest::MD5::md5_hex $data[$_])
		709	} 0.. $#$src;
		710
		711
		712	my $dbmd5 = db_get cache => "$id/md5";
		713	if ($dbmd5 eq $md5) {
		714	db_put cache => "$id/meta", $meta;
		715
		716	return db_get cache => "$id/data";
		717	}
		718	}
		719
		720	my $t1 = Time::HiRes::time;
		721	my $data = $process->(\@data);
		722	my $t2 = Time::HiRes::time;
		723
		724	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		725
		726	db_put cache => "$id/data", $data;
		727	db_put cache => "$id/md5" , $md5;
		728	db_put cache => "$id/meta", $meta;
		729
		730	return $data;
		731	}
		732
		733	db_get cache => "$id/data"
		734	}
		735
		736	=item cf::datalog type => key => value, ...
		737
		738	Log a datalog packet of the given type with the given key-value pairs.
		739
		740	=cut
		741
		742	sub datalog($@) {
		743	my ($type, %kv) = @_;
		744	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	745	}
342		746
343	=back	747	=back
344		748
345	=cut	749	=cut
346		750
347	#############################################################################	751	#############################################################################
348		752
349	package cf::path;
350
351	sub new {
352	my ($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	753	=head2 ATTACHABLE OBJECTS
470		754
471	Many objects in crossfire are so-called attachable objects. That means you can	755	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")	756	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	757	to it. All such attachable objects support the following methods.
474		758
475	In the following description, CLASS can be any of C<global>, C<object>	759	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	760	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	761	Deliantra).
478		762
479	=over 4	763	=over 4
480		764
481	=item $attachable->attach ($attachment, key => $value...)	765	=item $attachable->attach ($attachment, key => $value...)
482		766
…		…
526	=item cf::CLASS::attachment $name, ...	810	=item cf::CLASS::attachment $name, ...
527		811
528	Register an attachment by C<$name> through which attachable objects of the	812	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	813	given CLASS can refer to this attachment.
530		814
531	Some classes such as crossfire maps and objects can specify attachments	815	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.	816	that are attached at load/instantiate time, thus the need for a name.
533		817
534	These calls expect any number of the following handler/hook descriptions:	818	These calls expect any number of the following handler/hook descriptions:
535		819
536	=over 4	820	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	880	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	881	our @CB_MAP = ();
598		882
599	my %attachment;	883	my %attachment;
600		884
		885	sub cf::attachable::thawer_merge {
		886	# simply override everything except _meta
		887	local $_[0]{_meta};
		888	%{$_[0]} = %{$_[1]};
		889	}
		890
601	sub _attach_cb($$$$) {	891	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	892	my ($registry, $event, $prio, $cb) = @_;
603		893
604	use sort 'stable';	894	use sort 'stable';
605		895
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	929	$registry = $CB_TYPE[$object_type] ||= [];
640		930
641	} elsif ($type eq "subtype") {	931	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	932	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	933	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	934	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		935
646	} elsif ($type eq "package") {	936	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	937	my $pkg = shift @arg;
648		938
649	while (my ($name, $id) = each %cb_id) {	939	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	968	_attach $registry, $klass, @attach;
679	}	969	}
680		970
681	$obj->{$name} = \%arg;	971	$obj->{$name} = \%arg;
682	} else {	972	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	973	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	974	}
685		975
686	$obj->{_attachment}{$name} = undef;	976	$obj->{_attachment}{$name} = undef;
687	}	977	}
688		978
…		…
690	if (ref $_[0]) {	980	if (ref $_[0]) {
691	_object_attach @_;	981	_object_attach @_;
692	} else {	982	} else {
693	_attach shift->_attach_registry, @_;	983	_attach shift->_attach_registry, @_;
694	}	984	}
		985	_recalc_want;
695	};	986	};
696		987
697	# all those should be optimised	988	# all those should be optimised
698	sub cf::attachable::detach {	989	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	990	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	993	delete $obj->{_attachment}{$name};
703	reattach ($obj);	994	reattach ($obj);
704	} else {	995	} else {
705	Carp::croak "cannot, currently, detach class attachments";	996	Carp::croak "cannot, currently, detach class attachments";
706	}	997	}
		998	_recalc_want;
707	};	999	};
708		1000
709	sub cf::attachable::attached {	1001	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
711		1003
…		…
726	";	1018	";
727	die if $@;	1019	die if $@;
728	}	1020	}
729		1021
730	our $override;	1022	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1023	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		1024
733	sub override {	1025	sub override {
734	$override = 1;	1026	$override = 1;
735	@invoke_results = ();	1027	@INVOKE_RESULTS = (@_);
736	}	1028	}
737		1029
738	sub do_invoke {	1030	sub do_invoke {
739	my $event = shift;	1031	my $event = shift;
740	my $callbacks = shift;	1032	my $callbacks = shift;
741		1033
742	@invoke_results = ();	1034	@INVOKE_RESULTS = ();
743		1035
744	local $override;	1036	local $override;
745		1037
746	for (@$callbacks) {	1038	for (@$callbacks) {
747	eval { &{$_->[1]} };	1039	eval { &{$_->[1]} };
…		…
756	}	1048	}
757		1049
758	0	1050	0
759	}	1051	}
760		1052
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1054
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1056
765	Generate an object-specific event with the given arguments.	1057	Generate an object-specific event with the given arguments.
766		1058
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1059	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	1060	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	1061	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1062
771	=back	1063	=back
772		1064
773	=cut	1065	=cut
774		1066
775	#############################################################################	1067	#############################################################################
776	# object support	1068	# object support
		1069
		1070	sub _object_equal($$);
		1071	sub _object_equal($$) {
		1072	my ($a, $b) = @_;
		1073
		1074	return 0 unless (ref $a) eq (ref $b);
		1075
		1076	if ("HASH" eq ref $a) {
		1077	my @ka = keys %$a;
		1078	my @kb = keys %$b;
		1079
		1080	return 0 if @ka != @kb;
		1081
		1082	for (0 .. $#ka) {
		1083	return 0 unless $ka[$_] eq $kb[$_];
		1084	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1085	}
		1086
		1087	} elsif ("ARRAY" eq ref $a) {
		1088
		1089	return 0 if @$a != @$b;
		1090
		1091	for (0 .. $#$a) {
		1092	return 0 unless _object_equal $a->[$_], $b->[$_];
		1093	}
		1094
		1095	} elsif ($a ne $b) {
		1096	return 0;
		1097	}
		1098
		1099	1
		1100	}
		1101
		1102	our $SLOW_MERGES;#d#
		1103	sub _can_merge {
		1104	my ($ob1, $ob2) = @_;
		1105
		1106	++$SLOW_MERGES;#d#
		1107
		1108	# we do the slow way here
		1109	return _object_equal $ob1, $ob2
		1110	}
777		1111
778	sub reattach {	1112	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1113	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1114	my ($obj) = @_;
		1115
		1116	# no longer needed after getting rid of delete_package?
		1117	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1118
782	my $registry = $obj->registry;	1119	my $registry = $obj->registry;
783		1120
784	@$registry = ();	1121	@$registry = ();
785		1122
…		…
800	cf::attachable->attach (	1137	cf::attachable->attach (
801	prio => -1000000,	1138	prio => -1000000,
802	on_instantiate => sub {	1139	on_instantiate => sub {
803	my ($obj, $data) = @_;	1140	my ($obj, $data) = @_;
804		1141
805	$data = from_json $data;	1142	$data = decode_json $data;
806		1143
807	for (@$data) {	1144	for (@$data) {
808	my ($name, $args) = @$_;	1145	my ($name, $args) = @$_;
809		1146
810	$obj->attach ($name, %{$args || {} });	1147	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1163	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1164	my ($filename, $rdata, $objs) = @_;
828		1165
829	sync_job {	1166	sync_job {
830	if (length $$rdata) {	1167	if (length $$rdata) {
		1168	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1169	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1170	$decname, length $$rdata, scalar @$objs;
833		1171
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1172	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1173	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1174	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1175	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1176	aio_close $fh;
839		1177
840	if (@$objs) {	1178	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1179	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1180	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1181	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1182	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1183	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1184	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1185	aio_rename "$filename.pst~", "$filename.pst";
848	}	1186	}
849	} else {	1187	} else {
850	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
851	}	1189	}
…		…
856	}	1194	}
857	} else {	1195	} else {
858	aio_unlink $filename;	1196	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
860	}	1198	}
861	}	1199	};
862	}	1200	}
863		1201
864	sub object_freezer_as_string {	1202	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1203	my ($rdata, $objs) = @_;
866		1204
…		…
878	or return;	1216	or return;
879		1217
880	unless (aio_stat "$filename.pst") {	1218	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1219	(aio_load "$filename.pst", $av) >= 0
882	or return;	1220	or return;
		1221
883	$av = eval { (Storable::thaw $av)->{objs} };	1222	my $st = eval { Coro::Storable::thaw $av };
		1223	$av = $st->{objs};
884	}	1224	}
885		1225
		1226	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1227	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1228	$decname, length $data, scalar @{$av || []};
		1229
888	return ($data, $av);	1230	($data, $av)
889	}	1231	}
		1232
		1233	=head2 COMMAND CALLBACKS
		1234
		1235	=over 4
		1236
		1237	=cut
890		1238
891	#############################################################################	1239	#############################################################################
892	# command handling &c	1240	# command handling &c
893		1241
894	=item cf::register_command $name => \&callback($ob,$args);	1242	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1255	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1256	}
909		1257
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1258	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1259
912	Register a callbackf ro execution when the client sends an extcmd packet.	1260	Register a callback for execution when the client sends an (synchronous)
		1261	extcmd packet. Ext commands will be processed in the order they are
		1262	received by the server, like other user commands. The first argument is
		1263	the logged-in player. Ext commands can only be processed after a player
		1264	has logged in successfully.
913		1265
914	If the callback returns something, it is sent back as if reply was being	1266	If the callback returns something, it is sent back as if reply was being
915	called.	1267	called.
916		1268
		1269	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1270
		1271	Register a callback for execution when the client sends an (asynchronous)
		1272	exticmd packet. Exti commands are processed by the server as soon as they
		1273	are received, i.e. out of order w.r.t. other commands. The first argument
		1274	is a client socket. Exti commands can be received anytime, even before
		1275	log-in.
		1276
		1277	If the callback returns something, it is sent back as if reply was being
		1278	called.
		1279
917	=cut	1280	=cut
918		1281
919	sub register_extcmd {	1282	sub register_extcmd {
920	my ($name, $cb) = @_;	1283	my ($name, $cb) = @_;
921		1284
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1285	$EXTCMD{$name} = $cb;
		1286	}
		1287
		1288	sub register_exticmd {
		1289	my ($name, $cb) = @_;
		1290
		1291	$EXTICMD{$name} = $cb;
926	}	1292	}
927		1293
928	cf::player->attach (	1294	cf::player->attach (
929	on_command => sub {	1295	on_command => sub {
930	my ($pl, $name, $params) = @_;	1296	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1305	cf::override;
940	},	1306	},
941	on_extcmd => sub {	1307	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1308	my ($pl, $buf) = @_;
943		1309
944	my $msg = eval { from_json $buf };	1310	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1311
946	if (ref $msg) {	1312	if (ref $msg) {
		1313	my ($type, $reply, @payload) =
		1314	"ARRAY" eq ref $msg
		1315	? @$msg
		1316	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1317
		1318	my @reply;
		1319
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1320	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1321	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1322	}
		1323
		1324	$pl->ext_reply ($reply, @reply)
		1325	if $reply;
		1326
952	} else {	1327	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1328	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1329	}
955		1330
956	cf::override;	1331	cf::override;
957	},	1332	},
958	);	1333	);
959		1334
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1335	sub load_extensions {
		1336	cf::sync_job {
		1337	my %todo;
		1338
		1339	for my $path (<$LIBDIR/*.ext>) {
		1340	next unless -r $path;
		1341
		1342	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1343	my $base = $1;
		1344	my $pkg = $1;
		1345	$pkg =~ s/[^[:word:]]/_/g;
		1346	$pkg = "ext::$pkg";
		1347
		1348	open my $fh, "<:utf8", $path
		1349	or die "$path: $!";
		1350
		1351	my $source = do { local $/; <$fh> };
		1352
		1353	my %ext = (
		1354	path => $path,
		1355	base => $base,
		1356	pkg => $pkg,
		1357	);
		1358
		1359	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1360	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1361
		1362	$ext{source} =
		1363	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1364	. "#line 1 \"$path\"\n{\n"
		1365	. $source
		1366	. "\n};\n1";
		1367
		1368	$todo{$base} = \%ext;
		1369	}
		1370
		1371	my %done;
		1372	while (%todo) {
		1373	my $progress;
		1374
		1375	while (my ($k, $v) = each %todo) {
		1376	for (split /,\s*/, $v->{meta}{depends}) {
		1377	goto skip
		1378	unless exists $done{$_};
		1379	}
		1380
		1381	warn "... loading '$k' into '$v->{pkg}'\n";
		1382
		1383	unless (eval $v->{source}) {
		1384	my $msg = $@ ? "$v->{path}: $@\n"
		1385	: "$v->{base}: extension inactive.\n";
		1386
		1387	if (exists $v->{meta}{mandatory}) {
		1388	warn $msg;
		1389	cf::cleanup "mandatory extension failed to load, exiting.";
		1390	}
		1391
		1392	warn $msg;
		1393	}
		1394
		1395	$done{$k} = delete $todo{$k};
		1396	push @EXTS, $v->{pkg};
		1397	$progress = 1;
		1398	}
		1399
		1400	skip:
		1401	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1402	unless $progress;
		1403	}
		1404	};
		1405	}
		1406
		1407	#############################################################################
		1408
		1409	=back
		1410
		1411	=head2 CORE EXTENSIONS
		1412
		1413	Functions and methods that extend core deliantra objects.
		1414
		1415	=cut
		1416
		1417	package cf::player;
		1418
		1419	use Coro::AIO;
		1420
		1421	=head3 cf::player
		1422
		1423	=over 4
		1424
		1425	=item cf::player::num_playing
		1426
		1427	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1428
		1429	=cut
		1430
		1431	sub num_playing {
		1432	scalar grep
		1433	$_->ob->map
		1434	&& !$_->hidden
		1435	&& !$_->ob->flag (cf::FLAG_WIZ),
		1436	cf::player::list
		1437	}
		1438
		1439	=item cf::player::find $login
		1440
		1441	Returns the given player object, loading it if necessary (might block).
		1442
		1443	=cut
		1444
		1445	sub playerdir($) {
		1446	"$PLAYERDIR/"
		1447	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1448	}
		1449
		1450	sub path($) {
		1451	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1452
		1453	(playerdir $login) . "/playerdata"
		1454	}
		1455
		1456	sub find_active($) {
		1457	$cf::PLAYER{$_[0]}
		1458	and $cf::PLAYER{$_[0]}->active
		1459	and $cf::PLAYER{$_[0]}
		1460	}
		1461
		1462	sub exists($) {
		1463	my ($login) = @_;
		1464
		1465	$cf::PLAYER{$login}
		1466	or !aio_stat path $login
		1467	}
		1468
		1469	sub find($) {
		1470	return $cf::PLAYER{$_[0]} || do {
		1471	my $login = $_[0];
		1472
		1473	my $guard = cf::lock_acquire "user_find:$login";
		1474
		1475	$cf::PLAYER{$_[0]} || do {
		1476	# rename old playerfiles to new ones
		1477	#TODO: remove when no longer required
		1478	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1479	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1480	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1481	aio_unlink +(playerdir $login) . "/$login.pl";
		1482
		1483	my $f = new_from_file cf::object::thawer path $login
		1484	or return;
		1485
		1486	my $pl = cf::player::load_pl $f
		1487	or return;
		1488
		1489	local $cf::PLAYER_LOADING{$login} = $pl;
		1490	$f->resolve_delayed_derefs;
		1491	$cf::PLAYER{$login} = $pl
		1492	}
		1493	}
		1494	}
		1495
		1496	sub save($) {
		1497	my ($pl) = @_;
		1498
		1499	return if $pl->{deny_save};
		1500
		1501	my $path = path $pl;
		1502	my $guard = cf::lock_acquire "user_save:$path";
		1503
		1504	return if $pl->{deny_save};
		1505
		1506	aio_mkdir playerdir $pl, 0770;
		1507	$pl->{last_save} = $cf::RUNTIME;
		1508
		1509	cf::get_slot 0.01;
		1510
		1511	$pl->save_pl ($path);
		1512	cf::cede_to_tick;
		1513	}
		1514
		1515	sub new($) {
		1516	my ($login) = @_;
		1517
		1518	my $self = create;
		1519
		1520	$self->ob->name ($login);
		1521	$self->{deny_save} = 1;
		1522
		1523	$cf::PLAYER{$login} = $self;
		1524
		1525	$self
		1526	}
		1527
		1528	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1529
		1530	=cut
		1531
		1532	sub send_msg {
		1533	my $ns = shift->ns
		1534	or return;
		1535	$ns->send_msg (@_);
		1536	}
		1537
		1538	=item $pl->quit_character
		1539
		1540	Nukes the player without looking back. If logged in, the connection will
		1541	be destroyed. May block for a long time.
		1542
		1543	=cut
		1544
		1545	sub quit_character {
		1546	my ($pl) = @_;
		1547
		1548	my $name = $pl->ob->name;
		1549
		1550	$pl->{deny_save} = 1;
		1551	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1552
		1553	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1554	$pl->deactivate;
		1555	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1556	$pl->ob->check_score;
		1557	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1558	$pl->ns->destroy if $pl->ns;
		1559
		1560	my $path = playerdir $pl;
		1561	my $temp = "$path~$cf::RUNTIME~deleting~";
		1562	aio_rename $path, $temp;
		1563	delete $cf::PLAYER{$pl->ob->name};
		1564	$pl->destroy;
		1565
		1566	my $prefix = qr<^~\Q$name\E/>;
		1567
		1568	# nuke player maps
		1569	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1570
		1571	IO::AIO::aio_rmtree $temp;
		1572	}
		1573
		1574	=item $pl->kick
		1575
		1576	Kicks a player out of the game. This destroys the connection.
		1577
		1578	=cut
		1579
		1580	sub kick {
		1581	my ($pl, $kicker) = @_;
		1582
		1583	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1584	$pl->killer ("kicked");
		1585	$pl->ns->destroy;
		1586	}
		1587
		1588	=item cf::player::list_logins
		1589
		1590	Returns am arrayref of all valid playernames in the system, can take a
		1591	while and may block, so not sync_job-capable, ever.
		1592
		1593	=cut
		1594
		1595	sub list_logins {
		1596	my $dirs = aio_readdir $PLAYERDIR
		1597	or return [];
		1598
		1599	my @logins;
		1600
		1601	for my $login (@$dirs) {
		1602	my $path = path $login;
		1603
		1604	# a .pst is a dead give-away for a valid player
		1605	# if no pst file found, open and chekc for blocked users
		1606	if (aio_stat "$path.pst") {
		1607	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1608	aio_read $fh, 0, 512, my $buf, 0 or next;
		1609	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1610	}
		1611
		1612	utf8::decode $login;
		1613	push @logins, $login;
		1614	}
		1615
		1616	\@logins
		1617	}
		1618
		1619	=item $player->maps
		1620
		1621	Returns an arrayref of map paths that are private for this
		1622	player. May block.
		1623
		1624	=cut
		1625
		1626	sub maps($) {
		1627	my ($pl) = @_;
		1628
		1629	$pl = ref $pl ? $pl->ob->name : $pl;
		1630
		1631	my $files = aio_readdir playerdir $pl
		1632	or return;
		1633
		1634	my @paths;
		1635
		1636	for (@$files) {
		1637	utf8::decode $_;
		1638	next if /\.(?:pl|pst)$/;
		1639	next unless /^$PATH_SEP/o;
		1640
		1641	push @paths, cf::map::normalise "~$pl/$_";
		1642	}
		1643
		1644	\@paths
		1645	}
		1646
		1647	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1648
		1649	Expand deliantra pod fragments into protocol xml.
		1650
		1651	=item $player->ext_reply ($msgid, @msg)
		1652
		1653	Sends an ext reply to the player.
		1654
		1655	=cut
		1656
		1657	sub ext_reply($$@) {
		1658	my ($self, $id, @msg) = @_;
		1659
		1660	$self->ns->ext_reply ($id, @msg)
		1661	}
		1662
		1663	=item $player->ext_msg ($type, @msg)
		1664
		1665	Sends an ext event to the client.
		1666
		1667	=cut
		1668
		1669	sub ext_msg($$@) {
		1670	my ($self, $type, @msg) = @_;
		1671
		1672	$self->ns->ext_msg ($type, @msg);
		1673	}
		1674
		1675	=head3 cf::region
		1676
		1677	=over 4
		1678
		1679	=cut
		1680
		1681	package cf::region;
		1682
		1683	=item cf::region::find_by_path $path
		1684
		1685	Tries to decuce the likely region for a map knowing only its path.
		1686
		1687	=cut
		1688
		1689	sub find_by_path($) {
967	my ($path) = @_;	1690	my ($path) = @_;
968		1691
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1692	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1693
975	warn "loading '$path' into '$pkg'\n";	1694	for my $region (list) {
976		1695	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1696	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1697	if $region->specificity > $specificity;
979		1698	}
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	# }	1699	}
1009		1700
1010	# remove commands	1701	$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	}	1702	}
1116		1703
1117	=back	1704	=back
1118
1119		1705
1120	=head3 cf::map	1706	=head3 cf::map
1121		1707
1122	=over 4	1708	=over 4
1123		1709
…		…
1126	package cf::map;	1712	package cf::map;
1127		1713
1128	use Fcntl;	1714	use Fcntl;
1129	use Coro::AIO;	1715	use Coro::AIO;
1130		1716
		1717	use overload
		1718	'""' => \&as_string,
		1719	fallback => 1;
		1720
1131	our $MAX_RESET = 7200;	1721	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1722	our $DEFAULT_RESET = 3000;
1133		1723
1134	sub generate_random_map {	1724	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1725	my ($self, $rmp) = @_;
		1726
		1727	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1728
1137	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1730	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1734	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1735	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1736	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1737	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1738	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1739	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1741	(cf::region::find $rmp->{region}), $rmp->{custom}
		1742	)
		1743	}
		1744
		1745	=item cf::map->register ($regex, $prio)
		1746
		1747	Register a handler for the map path matching the given regex at the
		1748	givne priority (higher is better, built-in handlers have priority 0, the
		1749	default).
		1750
		1751	=cut
		1752
		1753	sub register {
		1754	my (undef, $regex, $prio) = @_;
		1755	my $pkg = caller;
		1756
		1757	no strict;
		1758	push @{"$pkg\::ISA"}, __PACKAGE__;
		1759
		1760	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1761	}
		1762
		1763	# also paths starting with '/'
		1764	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1765
		1766	sub thawer_merge {
		1767	my ($self, $merge) = @_;
		1768
		1769	# we have to keep some variables in memory intact
		1770	local $self->{path};
		1771	local $self->{load_path};
		1772
		1773	$self->SUPER::thawer_merge ($merge);
		1774	}
		1775
		1776	sub normalise {
		1777	my ($path, $base) = @_;
		1778
		1779	$path = "$path"; # make sure its a string
		1780
		1781	$path =~ s/\.map$//;
		1782
		1783	# map plan:
		1784	#
		1785	# /! non-realised random map exit (special hack!)
		1786	# {... are special paths that are not being touched
		1787	# ?xxx/... are special absolute paths
		1788	# ?random/... random maps
		1789	# /... normal maps
		1790	# ~user/... per-player map of a specific user
		1791
		1792	$path =~ s/$PATH_SEP/\//go;
		1793
		1794	# treat it as relative path if it starts with
		1795	# something that looks reasonable
		1796	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1797	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1798
		1799	$base =~ s{[^/]+/?$}{};
		1800	$path = "$base/$path";
		1801	}
		1802
		1803	for ($path) {
		1804	redo if s{//}{/};
		1805	redo if s{/\.?/}{/};
		1806	redo if s{/[^/]+/\.\./}{/};
		1807	}
		1808
		1809	$path
		1810	}
		1811
		1812	sub new_from_path {
		1813	my (undef, $path, $base) = @_;
		1814
		1815	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1816
		1817	$path = normalise $path, $base;
		1818
		1819	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1820	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1821	my $self = bless cf::map::new, $pkg;
		1822	$self->{path} = $path; $self->path ($path);
		1823	$self->init; # pass $1 etc.
		1824	return $self;
		1825	}
		1826	}
		1827
		1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1829	()
		1830	}
		1831
		1832	sub init {
		1833	my ($self) = @_;
		1834
		1835	$self
		1836	}
		1837
		1838	sub as_string {
		1839	my ($self) = @_;
		1840
		1841	"$self->{path}"
		1842	}
		1843
		1844	# the displayed name, this is a one way mapping
		1845	sub visible_name {
		1846	&as_string
		1847	}
		1848
		1849	# the original (read-only) location
		1850	sub load_path {
		1851	my ($self) = @_;
		1852
		1853	"$MAPDIR/$self->{path}.map"
		1854	}
		1855
		1856	# the temporary/swap location
		1857	sub save_path {
		1858	my ($self) = @_;
		1859
		1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1861	"$TMPDIR/$path.map"
		1862	}
		1863
		1864	# the unique path, undef == no special unique path
		1865	sub uniq_path {
		1866	my ($self) = @_;
		1867
		1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1869	"$UNIQUEDIR/$path"
1151	}	1870	}
1152		1871
1153	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1154	# all maps in C++...	1873	# all maps in C++...
1155	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1157		1876
1158	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1160	}	1879	}
1161		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
		1889	sub unlink_save {
		1890	my ($self) = @_;
		1891
		1892	utf8::encode (my $save = $self->save_path);
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1895	}
		1896
1162	sub try_load_header($) {	1897	sub load_header_from($) {
1163	my ($path) = @_;	1898	my ($self, $path) = @_;
1164		1899
1165	utf8::encode $path;	1900	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1167	or return;	1902	or return;
1168		1903
1169	my $map = cf::map::new	1904	$self->_load_header ($f)
1170	or return;	1905	or return;
1171		1906
1172	$map->load_header ($path)	1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
		1909
		1910	$self->{load_path} = $path;
		1911
		1912	1
		1913	}
		1914
		1915	sub load_header_orig {
		1916	my ($self) = @_;
		1917
		1918	$self->load_header_from ($self->load_path)
		1919	}
		1920
		1921	sub load_header_temp {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->save_path)
		1925	}
		1926
		1927	sub prepare_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->last_access ((delete $self->{last_access})
		1931	|| $cf::RUNTIME); #d#
		1932	# safety
		1933	$self->{instantiate_time} = $cf::RUNTIME
		1934	if $self->{instantiate_time} > $cf::RUNTIME;
		1935	}
		1936
		1937	sub prepare_orig {
		1938	my ($self) = @_;
		1939
		1940	$self->{load_original} = 1;
		1941	$self->{instantiate_time} = $cf::RUNTIME;
		1942	$self->last_access ($cf::RUNTIME);
		1943	$self->instantiate;
		1944	}
		1945
		1946	sub load_header {
		1947	my ($self) = @_;
		1948
		1949	if ($self->load_header_temp) {
		1950	$self->prepare_temp;
		1951	} else {
		1952	$self->load_header_orig
1173	or return;	1953	or return;
		1954	$self->prepare_orig;
		1955	}
1174		1956
1175	$map->{load_path} = $path;	1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
1176		1959
1177	$map	1960	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	1961	unless $self->default_region;
1179		1962
		1963	1
		1964	}
		1965
		1966	sub find;
1180	sub find_map {	1967	sub find {
1181	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1182		1969
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1188	cf::lock_wait "map_find:$key";	1973	cf::lock_wait "map_find:$path";
1189		1974
1190	$cf::MAP{$key} || do {	1975	$cf::MAP{$path} || do {
		1976	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191	my $guard = cf::lock_acquire "map_find:$key";	1977	my $guard2 = cf::lock_acquire "map_find:$path";
1192		1978
1193	# do it the slow way	1979	my $map = new_from_path cf::map $path
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1980	or return;
1208		1981
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1983
1222	if ($map->should_reset) {	1984	$map->load_header
		1985	or return;
		1986
		1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1988	# doing this can freeze the server in a sync job, obviously
		1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard2;
		1991	undef $guard1;
1223	$map->reset;	1992	$map->reset;
1224	undef $guard;	1993	return find $path;
1225	$map = find_map $path;
1226	}	1994	}
1227		1995
1228	$cf::MAP{$key} = $map	1996	$cf::MAP{$path} = $map
1229	}	1997	}
1230	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1231		2002
1232	sub load {	2003	sub load {
1233	my ($self) = @_;	2004	my ($self) = @_;
1234		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1235	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1236	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2011	my $guard = cf::lock_acquire "map_data:$path";
1237		2012
		2013	return unless $self->valid;
1238	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1239		2015
1240	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1241		2017
1242	$self->alloc;	2018	$self->alloc;
1243	$self->load_objects ($self->{load_path}, 1)	2019
		2020	$self->pre_load;
		2021	cf::cede_to_tick;
		2022
		2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1244	or return;	2026	or return;
1245		2027
1246	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->post_load_original
1247	if delete $self->{load_original};	2029	if delete $self->{load_original};
1248		2030
1249	if (my $uniq = $path->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1250	utf8::encode $uniq;	2032	utf8::encode $uniq;
1251	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1252	$self->clear_unique_items;	2035	$self->clear_unique_items;
1253	$self->load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1254	}	2039	}
1255	}	2040	}
1256		2041
		2042	$f->resolve_delayed_derefs;
		2043
		2044	cf::cede_to_tick;
1257	# now do the right thing for maps	2045	# now do the right thing for maps
1258	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1259
1260	if ($self->{path}->is_style_map) {
1261	$self->{deny_save} = 1;
1262	$self->{deny_reset} = 1;
1263	} else {
1264	$self->fix_auto_apply;
1265	$self->decay_objects;
1266	$self->update_buttons;
1267	$self->set_darkness_map;
1268	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1269	unless $self->difficulty;	2048	unless $self->difficulty;
		2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1270	$self->activate;	2058	$self->activate;
1271	}	2059	}
1272		2060
		2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
		2063
1273	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_ACTIVE);
1274	}	2065	}
1275		2066
1276	sub load_map_sync {	2067	$self->post_load;
		2068	}
		2069
		2070	sub customise_for {
		2071	my ($self, $ob) = @_;
		2072
		2073	return find "~" . $ob->name . "/" . $self->{path}
		2074	if $self->per_player;
		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
		2079	$self
		2080	}
		2081
		2082	# find and load all maps in the 3x3 area around a map
		2083	sub load_neighbours {
		2084	my ($map) = @_;
		2085
		2086	my @neigh; # diagonal neighbours
		2087
		2088	for (0 .. 3) {
		2089	my $neigh = $map->tile_path ($_)
		2090	or next;
		2091	$neigh = find $neigh, $map
		2092	or next;
		2093	$neigh->load;
		2094
		2095	push @neigh,
		2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2098	}
		2099
		2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
		2102	my $neigh = find $path, $origin
		2103	or next;
		2104	$neigh->load;
		2105	}
		2106	}
		2107
		2108	sub find_sync {
1277	my ($path, $origin) = @_;	2109	my ($path, $origin) = @_;
1278		2110
1279	#warn "load_map_sync<$path, $origin>\n";#d#	2111	cf::sync_job { find $path, $origin }
		2112	}
1280		2113
1281	cf::sync_job {	2114	sub do_load_sync {
1282	my $map = cf::map::find_map $path, $origin	2115	my ($map) = @_;
1283	or return;	2116
1284	$map->load;	2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1285	$map	2118	if $Coro::current == $Coro::main;
		2119
		2120	cf::sync_job { $map->load };
		2121	}
		2122
		2123	our %MAP_PREFETCH;
		2124	our $MAP_PREFETCHER = undef;
		2125
		2126	sub find_async {
		2127	my ($path, $origin, $load) = @_;
		2128
		2129	$path = normalise $path, $origin && $origin->{path};
		2130
		2131	if (my $map = $cf::MAP{$path}) {
		2132	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2133	}
		2134
		2135	$MAP_PREFETCH{$path} |= $load;
		2136
		2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
		2140	while (%MAP_PREFETCH) {
		2141	while (my ($k, $v) = each %MAP_PREFETCH) {
		2142	if (my $map = find $k) {
		2143	$map->load if $v;
		2144	}
		2145
		2146	delete $MAP_PREFETCH{$k};
		2147	}
		2148	}
		2149	undef $MAP_PREFETCHER;
1286	}	2150	};
		2151	$MAP_PREFETCHER->prio (6);
		2152
		2153	()
1287	}	2154	}
1288		2155
1289	sub save {	2156	sub save {
1290	my ($self) = @_;	2157	my ($self) = @_;
1291		2158
		2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2160
1292	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1293		2162
1294	return unless $self->dirty;	2163	return unless $self->dirty;
1295		2164
1296	my $save = $self->{path}->save_path; utf8::encode $save;	2165	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2166	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		2167
1299	$self->{load_path} = $save;	2168	$self->{load_path} = $save;
1300		2169
1301	return if $self->{deny_save};	2170	return if $self->{deny_save};
1302		2171
		2172	local $self->{last_access} = $self->last_access;#d#
		2173
		2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
		2176	$_->contr->save for $self->players;
		2177	};
		2178
		2179	cf::get_slot 0.02;
		2180
1303	if ($uniq) {	2181	if ($uniq) {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2182	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1305	$self->save_objects ($uniq, cf::IO_UNIQUES);	2183	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1306	} else {	2184	} else {
1307	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2185	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1308	}	2186	}
1309	}	2187	}
1310		2188
1311	sub swap_out {	2189	sub swap_out {
1312	my ($self) = @_;	2190	my ($self) = @_;
1313		2191
		2192	# save first because save cedes
		2193	$self->save;
		2194
		2195	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2196
1314	return if $self->players;	2197	return if $self->players;
1315	return if $self->in_memory != cf::MAP_IN_MEMORY;	2198	return if $self->in_memory != cf::MAP_ACTIVE;
1316	return if $self->{deny_save};	2199	return if $self->{deny_save};
1317		2200
		2201	$self->in_memory (cf::MAP_SWAPPED);
		2202
1318	$self->save;	2203	$self->deactivate;
		2204	$_->clear_links_to ($self) for values %cf::MAP;
1319	$self->clear;	2205	$self->clear;
1320	$self->in_memory (cf::MAP_SWAPPED);
1321	}	2206	}
1322		2207
1323	sub reset_at {	2208	sub reset_at {
1324	my ($self) = @_;	2209	my ($self) = @_;
1325		2210
1326	# TODO: safety, remove and allow resettable per-player maps	2211	# TODO: safety, remove and allow resettable per-player maps
1327	return 1e99 if $self->{path}{user_rel};
1328	return 1e99 if $self->{deny_reset};	2212	return 1e99 if $self->{deny_reset};
1329		2213
1330	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2214	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1331	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2215	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1332		2216
…		…
1337	my ($self) = @_;	2221	my ($self) = @_;
1338		2222
1339	$self->reset_at <= $cf::RUNTIME	2223	$self->reset_at <= $cf::RUNTIME
1340	}	2224	}
1341		2225
1342	sub unlink_save {
1343	my ($self) = @_;
1344
1345	utf8::encode (my $save = $self->{path}->save_path);
1346	aioreq_pri 3; IO::AIO::aio_unlink $save;
1347	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1348	}
1349
1350	sub rename {
1351	my ($self, $new_path) = @_;
1352
1353	$self->unlink_save;
1354
1355	delete $cf::MAP{$self->path};
1356	$self->{path} = new cf::path $new_path;
1357	$self->path ($self->{path}->as_string);
1358	$cf::MAP{$self->path} = $self;
1359
1360	$self->save;
1361	}
1362
1363	sub reset {	2226	sub reset {
1364	my ($self) = @_;	2227	my ($self) = @_;
1365		2228
		2229	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2230
1366	return if $self->players;	2231	return if $self->players;
1367	return if $self->{path}{user_rel};#d#
1368		2232
1369	warn "resetting map ", $self->path;#d#	2233	warn "resetting map ", $self->path;
		2234
		2235	$self->in_memory (cf::MAP_SWAPPED);
		2236
		2237	# need to save uniques path
		2238	unless ($self->{deny_save}) {
		2239	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2240
		2241	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2242	if $uniq;
		2243	}
1370		2244
1371	delete $cf::MAP{$self->path};	2245	delete $cf::MAP{$self->path};
1372		2246
		2247	$self->deactivate;
1373	$_->clear_links_to ($self) for values %cf::MAP;	2248	$_->clear_links_to ($self) for values %cf::MAP;
		2249	$self->clear;
1374		2250
1375	$self->unlink_save;	2251	$self->unlink_save;
1376	$self->destroy;	2252	$self->destroy;
1377	}	2253	}
1378		2254
1379	my $nuke_counter = "aaaa";	2255	my $nuke_counter = "aaaa";
1380		2256
1381	sub nuke {	2257	sub nuke {
1382	my ($self) = @_;	2258	my ($self) = @_;
1383		2259
		2260	{
		2261	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2262
		2263	delete $cf::MAP{$self->path};
		2264
		2265	$self->unlink_save;
		2266
		2267	bless $self, "cf::map";
		2268	delete $self->{deny_reset};
1384	$self->{deny_save} = 1;	2269	$self->{deny_save} = 1;
1385	$self->reset_timeout (1);	2270	$self->reset_timeout (1);
1386	$self->rename ("{nuke}/" . ($nuke_counter++));	2271	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2272
		2273	$cf::MAP{$self->path} = $self;
		2274	}
		2275
1387	$self->reset; # polite request, might not happen	2276	$self->reset; # polite request, might not happen
1388	}	2277	}
1389		2278
1390	sub customise_for {	2279	=item $maps = cf::map::tmp_maps
1391	my ($map, $ob) = @_;
1392		2280
1393	if ($map->per_player) {	2281	Returns an arrayref with all map paths of currently instantiated and saved
1394	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2282	maps. May block.
		2283
		2284	=cut
		2285
		2286	sub tmp_maps() {
1395	}	2287	[
1396		2288	map {
1397	$map	2289	utf8::decode $_;
		2290	/\.map$/
		2291	? normalise $_
		2292	: ()
		2293	} @{ aio_readdir $TMPDIR or [] }
		2294	]
1398	}	2295	}
1399		2296
1400	sub emergency_save {	2297	=item $maps = cf::map::random_maps
1401	local $cf::FREEZE = 1;
1402		2298
1403	warn "enter emergency map save\n";	2299	Returns an arrayref with all map paths of currently instantiated and saved
		2300	random maps. May block.
1404		2301
1405	cf::sync_job {	2302	=cut
1406	warn "begin emergency map save\n";	2303
1407	$_->save for values %cf::MAP;	2304	sub random_maps() {
		2305	[
		2306	map {
		2307	utf8::decode $_;
		2308	/\.map$/
		2309	? normalise "?random/$_"
		2310	: ()
		2311	} @{ aio_readdir $RANDOMDIR or [] }
		2312	]
		2313	}
		2314
		2315	=item cf::map::unique_maps
		2316
		2317	Returns an arrayref of paths of all shared maps that have
		2318	instantiated unique items. May block.
		2319
		2320	=cut
		2321
		2322	sub unique_maps() {
		2323	[
		2324	map {
		2325	utf8::decode $_;
		2326	s/\.map$//; # TODO future compatibility hack
		2327	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2328	? ()
		2329	: normalise $_
		2330	} @{ aio_readdir $UNIQUEDIR or [] }
		2331	]
		2332	}
		2333
		2334	=back
		2335
		2336	=head3 cf::object
		2337
		2338	=cut
		2339
		2340	package cf::object;
		2341
		2342	=over 4
		2343
		2344	=item $ob->inv_recursive
		2345
		2346	Returns the inventory of the object I<and> their inventories, recursively,
		2347	but I<not> the object itself.
		2348
		2349	=cut
		2350
		2351	sub inv_recursive_;
		2352	sub inv_recursive_ {
		2353	map { $_, inv_recursive_ $_->inv } @_
		2354	}
		2355
		2356	sub inv_recursive {
		2357	inv_recursive_ inv $_[0]
		2358	}
		2359
		2360	=item $ref = $ob->ref
		2361
		2362	Creates and returns a persistent reference to an object that can be stored as a string.
		2363
		2364	=item $ob = cf::object::deref ($refstring)
		2365
		2366	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2367	even if the object actually exists. May block.
		2368
		2369	=cut
		2370
		2371	sub deref {
		2372	my ($ref) = @_;
		2373
		2374	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2375	my ($uuid, $name) = ($1, $2);
		2376	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2377	or return;
		2378	$pl->ob->uuid eq $uuid
		2379	or return;
		2380
		2381	$pl->ob
		2382	} else {
		2383	warn "$ref: cannot resolve object reference\n";
		2384	undef
1408	};	2385	}
1409
1410	warn "end emergency map save\n";
1411	}	2386	}
1412		2387
1413	package cf;	2388	package cf;
1414		2389
1415	=back	2390	=back
1416
1417		2391
1418	=head3 cf::object::player	2392	=head3 cf::object::player
1419		2393
1420	=over 4	2394	=over 4
1421		2395
…		…
1424	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2398	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1425	can be C<undef>. Does the right thing when the player is currently in a	2399	can be C<undef>. Does the right thing when the player is currently in a
1426	dialogue with the given NPC character.	2400	dialogue with the given NPC character.
1427		2401
1428	=cut	2402	=cut
		2403
		2404	our $SAY_CHANNEL = {
		2405	id => "say",
		2406	title => "Map",
		2407	reply => "say ",
		2408	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2409	};
		2410
		2411	our $CHAT_CHANNEL = {
		2412	id => "chat",
		2413	title => "Chat",
		2414	reply => "chat ",
		2415	tooltip => "Player chat and shouts, global to the server.",
		2416	};
1429		2417
1430	# rough implementation of a future "reply" method that works	2418	# rough implementation of a future "reply" method that works
1431	# with dialog boxes.	2419	# with dialog boxes.
1432	#TODO: the first argument must go, split into a $npc->reply_to ( method	2420	#TODO: the first argument must go, split into a $npc->reply_to ( method
1433	sub cf::object::player::reply($$$;$) {	2421	sub cf::object::player::reply($$$;$) {
…		…
1435		2423
1436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2424	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1437		2425
1438	if ($self->{record_replies}) {	2426	if ($self->{record_replies}) {
1439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2427	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2428
1440	} else {	2429	} else {
		2430	my $pl = $self->contr;
		2431
		2432	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2433	my $dialog = $pl->{npc_dialog};
		2434	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2435
		2436	} else {
1441	$msg = $npc->name . " says: $msg" if $npc;	2437	$msg = $npc->name . " says: $msg" if $npc;
1442	$self->message ($msg, $flags);	2438	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2439	}
1443	}	2440	}
		2441	}
		2442
		2443	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2444
		2445	=cut
		2446
		2447	sub cf::object::send_msg {
		2448	my $pl = shift->contr
		2449	or return;
		2450	$pl->send_msg (@_);
1444	}	2451	}
1445		2452
1446	=item $player_object->may ("access")	2453	=item $player_object->may ("access")
1447		2454
1448	Returns wether the given player is authorized to access resource "access"	2455	Returns wether the given player is authorized to access resource "access"
…		…
1461		2468
1462	=item $player_object->enter_link	2469	=item $player_object->enter_link
1463		2470
1464	Freezes the player and moves him/her to a special map (C<{link}>).	2471	Freezes the player and moves him/her to a special map (C<{link}>).
1465		2472
1466	The player should be reaosnably safe there for short amounts of time. You	2473	The player should be reasonably safe there for short amounts of time (e.g.
1467	I<MUST> call C<leave_link> as soon as possible, though.	2474	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2475	though, as the palyer cannot control the character while it is on the link
		2476	map.
		2477
		2478	Will never block.
1468		2479
1469	=item $player_object->leave_link ($map, $x, $y)	2480	=item $player_object->leave_link ($map, $x, $y)
1470		2481
1471	Moves the player out of the specila link map onto the given map. If the	2482	Moves the player out of the special C<{link}> map onto the specified
1472	map is not valid (or omitted), the player will be moved back to the	2483	map. If the map is not valid (or omitted), the player will be moved back
1473	location he/she was before the call to C<enter_link>, or, if that fails,	2484	to the location he/she was before the call to C<enter_link>, or, if that
1474	to the emergency map position.	2485	fails, to the emergency map position.
1475		2486
1476	Might block.	2487	Might block.
1477		2488
1478	=cut	2489	=cut
		2490
		2491	sub link_map {
		2492	unless ($LINK_MAP) {
		2493	$LINK_MAP = cf::map::find "{link}"
		2494	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2495	$LINK_MAP->load;
		2496	}
		2497
		2498	$LINK_MAP
		2499	}
1479		2500
1480	sub cf::object::player::enter_link {	2501	sub cf::object::player::enter_link {
1481	my ($self) = @_;	2502	my ($self) = @_;
1482		2503
1483	$self->deactivate_recursive;	2504	$self->deactivate_recursive;
1484		2505
1485	return if $self->map == $LINK_MAP;	2506	return if UNIVERSAL::isa $self->map, "ext::map_link";
1486		2507
1487	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2508	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1488	if $self->map;	2509	if $self->map && $self->map->{path} ne "{link}";
1489		2510
1490	$self->enter_map ($LINK_MAP, 20, 20);	2511	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1491	}	2512	}
1492		2513
1493	sub cf::object::player::leave_link {	2514	sub cf::object::player::leave_link {
1494	my ($self, $map, $x, $y) = @_;	2515	my ($self, $map, $x, $y) = @_;
		2516
		2517	return unless $self->contr->active;
1495		2518
1496	my $link_pos = delete $self->{_link_pos};	2519	my $link_pos = delete $self->{_link_pos};
1497		2520
1498	unless ($map) {	2521	unless ($map) {
1499	# restore original map position	2522	# restore original map position
1500	($map, $x, $y) = @{ $link_pos || [] };	2523	($map, $x, $y) = @{ $link_pos || [] };
1501	$map = cf::map::find_map $map;	2524	$map = cf::map::find $map;
1502		2525
1503	unless ($map) {	2526	unless ($map) {
1504	($map, $x, $y) = @$EMERGENCY_POSITION;	2527	($map, $x, $y) = @$EMERGENCY_POSITION;
1505	$map = cf::map::find_map $map	2528	$map = cf::map::find $map
1506	or die "FATAL: cannot load emergency map\n";	2529	or die "FATAL: cannot load emergency map\n";
1507	}	2530	}
1508	}	2531	}
1509		2532
1510	($x, $y) = (-1, -1)	2533	($x, $y) = (-1, -1)
…		…
1513	# use -1 or undef as default coordinates, not 0, 0	2536	# use -1 or undef as default coordinates, not 0, 0
1514	($x, $y) = ($map->enter_x, $map->enter_y)	2537	($x, $y) = ($map->enter_x, $map->enter_y)
1515	if $x <=0 && $y <= 0;	2538	if $x <=0 && $y <= 0;
1516		2539
1517	$map->load;	2540	$map->load;
		2541	$map->load_neighbours;
1518		2542
		2543	return unless $self->contr->active;
		2544	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1519	$self->activate_recursive;	2545	$self->activate_recursive;
		2546
		2547	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1520	$self->enter_map ($map, $x, $y);	2548	$self->enter_map ($map, $x, $y);
1521	}	2549	}
1522		2550
1523	cf::player->attach (	2551	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1524	on_logout => sub {
1525	my ($pl) = @_;
1526		2552
1527	# abort map switching before logout	2553	Moves the player to the given map-path and coordinates by first freezing
1528	if ($pl->ob->{_link_pos}) {	2554	her, loading and preparing them map, calling the provided $check callback
1529	cf::sync_job {	2555	that has to return the map if sucecssful, and then unfreezes the player on
1530	$pl->ob->leave_link	2556	the new (success) or old (failed) map position. In either case, $done will
1531	};	2557	be called at the end of this process.
1532	}
1533	},
1534	on_login => sub {
1535	my ($pl) = @_;
1536		2558
1537	# try to abort aborted map switching on player login :)	2559	Note that $check will be called with a potentially non-loaded map, so if
1538	# should happen only on crashes	2560	it needs a loaded map it has to call C<< ->load >>.
1539	if ($pl->ob->{_link_pos}) {
1540	$pl->ob->enter_link;
1541	Coro::async {
1542	# we need this sleep as the login has a concurrent enter_exit running
1543	# and this sleep increases chances of the player not ending up in scorn
1544	Coro::Timer::sleep 1;
1545	$pl->ob->leave_link;
1546	};
1547	}
1548	},
1549	);
1550		2561
1551	=item $player_object->goto_map ($path, $x, $y)
1552
1553	=cut	2562	=cut
1554		2563
		2564	our $GOTOGEN;
		2565
1555	sub cf::object::player::goto_map {	2566	sub cf::object::player::goto {
1556	my ($self, $path, $x, $y) = @_;	2567	my ($self, $path, $x, $y, $check, $done) = @_;
		2568
		2569	# do generation counting so two concurrent goto's will be executed in-order
		2570	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1557		2571
1558	$self->enter_link;	2572	$self->enter_link;
1559		2573
1560	(Coro::async {	2574	(async {
1561	$path = new cf::path $path;	2575	$Coro::current->{desc} = "player::goto $path $x $y";
1562		2576
1563	my $map = cf::map::find_map $path->as_string;	2577	# *tag paths override both path and x|y
		2578	if ($path =~ /^\*(.*)$/) {
		2579	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2580	my $ob = $obs[rand @obs];
		2581
		2582	# see if we actually can go there
		2583	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2584	$ob = $obs[rand @obs];
		2585	} else {
		2586	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2587	}
		2588	# else put us there anyways for now #d#
		2589
		2590	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2591	} else {
		2592	($path, $x, $y) = (undef, undef, undef);
		2593	}
		2594	}
		2595
		2596	my $map = eval {
		2597	my $map = defined $path ? cf::map::find $path : undef;
		2598
		2599	if ($map) {
1564	$map = $map->customise_for ($self) if $map;	2600	$map = $map->customise_for ($self);
1565		2601	$map = $check->($map) if $check && $map;
1566	# warn "entering ", $map->path, " at ($x, $y)\n"	2602	} else {
1567	# if $map;
1568
1569	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2603	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2604	}
1570		2605
		2606	$map
		2607	};
		2608
		2609	if ($@) {
		2610	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2611	LOG llevError | logBacktrace, Carp::longmess $@;
		2612	}
		2613
		2614	if ($gen == $self->{_goto_generation}) {
		2615	delete $self->{_goto_generation};
1571	$self->leave_link ($map, $x, $y);	2616	$self->leave_link ($map, $x, $y);
		2617	}
		2618
		2619	$done->() if $done;
1572	})->prio (1);	2620	})->prio (1);
1573	}	2621	}
1574		2622
1575	=item $player_object->enter_exit ($exit_object)	2623	=item $player_object->enter_exit ($exit_object)
1576		2624
…		…
1578		2626
1579	sub parse_random_map_params {	2627	sub parse_random_map_params {
1580	my ($spec) = @_;	2628	my ($spec) = @_;
1581		2629
1582	my $rmp = { # defaults	2630	my $rmp = { # defaults
1583	xsize => 10,	2631	xsize => (cf::rndm 15, 40),
1584	ysize => 10,	2632	ysize => (cf::rndm 15, 40),
		2633	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2634	#layout => string,
1585	};	2635	};
1586		2636
1587	for (split /\n/, $spec) {	2637	for (split /\n/, $spec) {
1588	my ($k, $v) = split /\s+/, $_, 2;	2638	my ($k, $v) = split /\s+/, $_, 2;
1589		2639
…		…
1601	# that depends on the exit object	2651	# that depends on the exit object
1602		2652
1603	my $rmp = parse_random_map_params $exit->msg;	2653	my $rmp = parse_random_map_params $exit->msg;
1604		2654
1605	if ($exit->map) {	2655	if ($exit->map) {
1606	$rmp->{region} = $exit->map->region_name;	2656	$rmp->{region} = $exit->region->name;
1607	$rmp->{origin_map} = $exit->map->path;	2657	$rmp->{origin_map} = $exit->map->path;
1608	$rmp->{origin_x} = $exit->x;	2658	$rmp->{origin_x} = $exit->x;
1609	$rmp->{origin_y} = $exit->y;	2659	$rmp->{origin_y} = $exit->y;
		2660
		2661	$exit->map->touch;
1610	}	2662	}
1611		2663
1612	$rmp->{random_seed} ||= $exit->random_seed;	2664	$rmp->{random_seed} ||= $exit->random_seed;
1613		2665
1614	my $data = cf::to_json $rmp;	2666	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1615	my $md5 = Digest::MD5::md5_hex $data;	2667	my $md5 = Digest::MD5::md5_hex $data;
		2668	my $meta = "$RANDOMDIR/$md5.meta";
1616		2669
1617	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2670	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1618	aio_write $fh, 0, (length $data), $data, 0;	2671	aio_write $fh, 0, (length $data), $data, 0;
		2672	undef $fh;
		2673	aio_rename "$meta~", $meta;
1619		2674
		2675	my $slaying = "?random/$md5";
		2676
		2677	if ($exit->valid) {
1620	$exit->slaying ("?random/$md5");	2678	$exit->slaying ("?random/$md5");
1621	$exit->msg (undef);	2679	$exit->msg (undef);
		2680	}
1622	}	2681	}
1623	}	2682	}
1624		2683
1625	sub cf::object::player::enter_exit {	2684	sub cf::object::player::enter_exit {
1626	my ($self, $exit) = @_;	2685	my ($self, $exit) = @_;
1627		2686
1628	return unless $self->type == cf::PLAYER;	2687	return unless $self->type == cf::PLAYER;
1629		2688
1630	$self->enter_link;	2689	$self->enter_link;
1631		2690
1632	(Coro::async {	2691	(async {
		2692	$Coro::current->{desc} = "enter_exit";
		2693
1633	unless (eval {	2694	unless (eval {
		2695	$self->deactivate_recursive; # just to be sure
1634		2696
		2697	# random map handling
		2698	{
		2699	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2700
1635	prepare_random_map $exit	2701	prepare_random_map $exit
1636	if $exit->slaying eq "/!";	2702	if $exit->slaying eq "/!";
		2703	}
1637		2704
1638	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2705	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1639	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2706	my $x = $exit->stats->hp;
		2707	my $y = $exit->stats->sp;
1640		2708
		2709	$self->goto ($map, $x, $y);
		2710
		2711	# if exit is damned, update players death & WoR home-position
		2712	$self->contr->savebed ($map, $x, $y)
		2713	if $exit->flag (cf::FLAG_DAMNED);
		2714
1641	1;	2715	1
1642	}) {	2716	}) {
1643	$self->message ("Something went wrong deep within the crossfire server. "	2717	$self->message ("Something went wrong deep within the deliantra server. "
1644	. "I'll try to bring you back to the map you were before. "	2718	. "I'll try to bring you back to the map you were before. "
1645	. "Please report this to the dungeon master",	2719	. "Please report this to the dungeon master!",
1646	cf::NDI_UNIQUE | cf::NDI_RED);	2720	cf::NDI_UNIQUE | cf::NDI_RED);
1647		2721
1648	warn "ERROR in enter_exit: $@";	2722	warn "ERROR in enter_exit: $@";
1649	$self->leave_link;	2723	$self->leave_link;
1650	}	2724	}
1651	})->prio (1);	2725	})->prio (1);
…		…
1664		2738
1665	sub cf::client::send_drawinfo {	2739	sub cf::client::send_drawinfo {
1666	my ($self, $text, $flags) = @_;	2740	my ($self, $text, $flags) = @_;
1667		2741
1668	utf8::encode $text;	2742	utf8::encode $text;
1669	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2743	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1670	}	2744	}
1671		2745
		2746	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2747
		2748	Send a drawinfo or msg packet to the client, formatting the msg for the
		2749	client if neccessary. C<$type> should be a string identifying the type of
		2750	the message, with C<log> being the default. If C<$color> is negative, suppress
		2751	the message unless the client supports the msg packet.
		2752
		2753	=cut
		2754
		2755	# non-persistent channels (usually the info channel)
		2756	our %CHANNEL = (
		2757	"c/identify" => {
		2758	id => "infobox",
		2759	title => "Identify",
		2760	reply => undef,
		2761	tooltip => "Items recently identified",
		2762	},
		2763	"c/examine" => {
		2764	id => "infobox",
		2765	title => "Examine",
		2766	reply => undef,
		2767	tooltip => "Signs and other items you examined",
		2768	},
		2769	"c/book" => {
		2770	id => "infobox",
		2771	title => "Book",
		2772	reply => undef,
		2773	tooltip => "The contents of a note or book",
		2774	},
		2775	"c/lookat" => {
		2776	id => "infobox",
		2777	title => "Look",
		2778	reply => undef,
		2779	tooltip => "What you saw there",
		2780	},
		2781	"c/who" => {
		2782	id => "infobox",
		2783	title => "Players",
		2784	reply => undef,
		2785	tooltip => "Shows players who are currently online",
		2786	},
		2787	"c/body" => {
		2788	id => "infobox",
		2789	title => "Body Parts",
		2790	reply => undef,
		2791	tooltip => "Shows which body parts you posess and are available",
		2792	},
		2793	"c/skills" => {
		2794	id => "infobox",
		2795	title => "Skills",
		2796	reply => undef,
		2797	tooltip => "Shows your experience per skill and item power",
		2798	},
		2799	"c/uptime" => {
		2800	id => "infobox",
		2801	title => "Uptime",
		2802	reply => undef,
		2803	tooltip => "How long the server has been running since last restart",
		2804	},
		2805	"c/mapinfo" => {
		2806	id => "infobox",
		2807	title => "Map Info",
		2808	reply => undef,
		2809	tooltip => "Information related to the maps",
		2810	},
		2811	"c/party" => {
		2812	id => "party",
		2813	title => "Party",
		2814	reply => "gsay ",
		2815	tooltip => "Messages and chat related to your party",
		2816	},
		2817	);
		2818
		2819	sub cf::client::send_msg {
		2820	my ($self, $channel, $msg, $color, @extra) = @_;
		2821
		2822	$msg = $self->pl->expand_cfpod ($msg)
		2823	unless $color & cf::NDI_VERBATIM;
		2824
		2825	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2826
		2827	# check predefined channels, for the benefit of C
		2828	if ($CHANNEL{$channel}) {
		2829	$channel = $CHANNEL{$channel};
		2830
		2831	$self->ext_msg (channel_info => $channel)
		2832	if $self->can_msg;
		2833
		2834	$channel = $channel->{id};
		2835
		2836	} elsif (ref $channel) {
		2837	# send meta info to client, if not yet sent
		2838	unless (exists $self->{channel}{$channel->{id}}) {
		2839	$self->{channel}{$channel->{id}} = $channel;
		2840	$self->ext_msg (channel_info => $channel)
		2841	if $self->can_msg;
		2842	}
		2843
		2844	$channel = $channel->{id};
		2845	}
		2846
		2847	return unless @extra || length $msg;
		2848
		2849	if ($self->can_msg) {
		2850	# default colour, mask it out
		2851	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2852	if $color & cf::NDI_DEF;
		2853
		2854	my $pkt = "msg "
		2855	. $self->{json_coder}->encode (
		2856	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2857	);
		2858
		2859	# try lzf for large packets
		2860	$pkt = "lzf " . Compress::LZF::compress $pkt
		2861	if 1024 <= length $pkt and $self->{can_lzf};
		2862
		2863	# split very large packets
		2864	if (8192 < length $pkt and $self->{can_lzf}) {
		2865	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2866	$pkt = "frag";
		2867	}
		2868
		2869	$self->send_packet ($pkt);
		2870	} else {
		2871	if ($color >= 0) {
		2872	# replace some tags by gcfclient-compatible ones
		2873	for ($msg) {
		2874	1 while
		2875	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2876	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2877	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2878	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2879	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2880	}
		2881
		2882	$color &= cf::NDI_COLOR_MASK;
		2883
		2884	utf8::encode $msg;
		2885
		2886	if (0 && $msg =~ /\[/) {
		2887	# COMMAND/INFO
		2888	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2889	} else {
		2890	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2891	$self->send_packet ("drawinfo $color $msg")
		2892	}
		2893	}
		2894	}
		2895	}
		2896
		2897	=item $client->ext_msg ($type, @msg)
		2898
		2899	Sends an ext event to the client.
		2900
		2901	=cut
		2902
		2903	sub cf::client::ext_msg($$@) {
		2904	my ($self, $type, @msg) = @_;
		2905
		2906	if ($self->extcmd == 2) {
		2907	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2908	} elsif ($self->extcmd == 1) { # TODO: remove
		2909	push @msg, msgtype => "event_$type";
		2910	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2911	}
		2912	}
		2913
		2914	=item $client->ext_reply ($msgid, @msg)
		2915
		2916	Sends an ext reply to the client.
		2917
		2918	=cut
		2919
		2920	sub cf::client::ext_reply($$@) {
		2921	my ($self, $id, @msg) = @_;
		2922
		2923	if ($self->extcmd == 2) {
		2924	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2925	} elsif ($self->extcmd == 1) {
		2926	#TODO: version 1, remove
		2927	unshift @msg, msgtype => "reply", msgid => $id;
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2929	}
		2930	}
1672		2931
1673	=item $success = $client->query ($flags, "text", \&cb)	2932	=item $success = $client->query ($flags, "text", \&cb)
1674		2933
1675	Queues a query to the client, calling the given callback with	2934	Queues a query to the client, calling the given callback with
1676	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2935	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1677	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2936	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1678		2937
1679	Queries can fail, so check the return code. Or don't, as queries will become	2938	Queries can fail, so check the return code. Or don't, as queries will
1680	reliable at some point in the future.	2939	become reliable at some point in the future.
1681		2940
1682	=cut	2941	=cut
1683		2942
1684	sub cf::client::query {	2943	sub cf::client::query {
1685	my ($self, $flags, $text, $cb) = @_;	2944	my ($self, $flags, $text, $cb) = @_;
…		…
1693	utf8::encode $text;	2952	utf8::encode $text;
1694	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2953	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1695		2954
1696	$self->send_packet ($self->{query_queue}[0][0])	2955	$self->send_packet ($self->{query_queue}[0][0])
1697	if @{ $self->{query_queue} } == 1;	2956	if @{ $self->{query_queue} } == 1;
		2957
		2958	1
1698	}	2959	}
1699		2960
1700	cf::client->attach (	2961	cf::client->attach (
		2962	on_connect => sub {
		2963	my ($ns) = @_;
		2964
		2965	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2966	},
1701	on_reply => sub {	2967	on_reply => sub {
1702	my ($ns, $msg) = @_;	2968	my ($ns, $msg) = @_;
1703		2969
1704	# this weird shuffling is so that direct followup queries	2970	# this weird shuffling is so that direct followup queries
1705	# get handled first	2971	# get handled first
1706	my $queue = delete $ns->{query_queue};	2972	my $queue = delete $ns->{query_queue}
		2973	or return; # be conservative, not sure how that can happen, but we saw a crash here
1707		2974
1708	(shift @$queue)->[1]->($msg);	2975	(shift @$queue)->[1]->($msg);
		2976	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1709		2977
1710	push @{ $ns->{query_queue} }, @$queue;	2978	push @{ $ns->{query_queue} }, @$queue;
1711		2979
1712	if (@{ $ns->{query_queue} } == @$queue) {	2980	if (@{ $ns->{query_queue} } == @$queue) {
1713	if (@$queue) {	2981	if (@$queue) {
…		…
1715	} else {	2983	} else {
1716	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2984	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1717	}	2985	}
1718	}	2986	}
1719	},	2987	},
		2988	on_exticmd => sub {
		2989	my ($ns, $buf) = @_;
		2990
		2991	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2992
		2993	if (ref $msg) {
		2994	my ($type, $reply, @payload) =
		2995	"ARRAY" eq ref $msg
		2996	? @$msg
		2997	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2998
		2999	my @reply;
		3000
		3001	if (my $cb = $EXTICMD{$type}) {
		3002	@reply = $cb->($ns, @payload);
		3003	}
		3004
		3005	$ns->ext_reply ($reply, @reply)
		3006	if $reply;
		3007
		3008	} else {
		3009	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3010	}
		3011
		3012	cf::override;
		3013	},
1720	);	3014	);
1721		3015
1722	=item $client->coro (\&cb)	3016	=item $client->async (\&cb)
1723		3017
1724	Create a new coroutine, running the specified callback. The coroutine will	3018	Create a new coroutine, running the specified callback. The coroutine will
1725	be automatically cancelled when the client gets destroyed (e.g. on logout,	3019	be automatically cancelled when the client gets destroyed (e.g. on logout,
1726	or loss of connection).	3020	or loss of connection).
1727		3021
1728	=cut	3022	=cut
1729		3023
1730	sub cf::client::coro {	3024	sub cf::client::async {
1731	my ($self, $cb) = @_;	3025	my ($self, $cb) = @_;
1732		3026
1733	my $coro; $coro = async {	3027	my $coro = &Coro::async ($cb);
1734	eval {
1735	$cb->();
1736	};
1737	warn $@ if $@;
1738	};
1739		3028
1740	$coro->on_destroy (sub {	3029	$coro->on_destroy (sub {
1741	delete $self->{_coro}{$coro+0};	3030	delete $self->{_coro}{$coro+0};
1742	});	3031	});
1743		3032
…		…
1770	our $safe = new Safe "safe";	3059	our $safe = new Safe "safe";
1771	our $safe_hole = new Safe::Hole;	3060	our $safe_hole = new Safe::Hole;
1772		3061
1773	$SIG{FPE} = 'IGNORE';	3062	$SIG{FPE} = 'IGNORE';
1774		3063
1775	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3064	$safe->permit_only (Opcode::opset qw(
		3065	:base_core :base_mem :base_orig :base_math
		3066	grepstart grepwhile mapstart mapwhile
		3067	sort time
		3068	));
1776		3069
1777	# here we export the classes and methods available to script code	3070	# here we export the classes and methods available to script code
1778		3071
1779	=pod	3072	=pod
1780		3073
1781	The following fucntions and emthods are available within a safe environment:	3074	The following functions and methods are available within a safe environment:
1782		3075
1783	cf::object contr pay_amount pay_player map	3076	cf::object
		3077	contr pay_amount pay_player map x y force_find force_add destroy
		3078	insert remove name archname title slaying race decrease split
		3079
1784	cf::object::player player	3080	cf::object::player
1785	cf::player peaceful	3081	player
1786	cf::map trigger	3082
		3083	cf::player
		3084	peaceful
		3085
		3086	cf::map
		3087	trigger
1787		3088
1788	=cut	3089	=cut
1789		3090
1790	for (	3091	for (
1791	["cf::object" => qw(contr pay_amount pay_player map)],	3092	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3093	insert remove inv nrof name archname title slaying race
		3094	decrease split destroy change_exp)],
1792	["cf::object::player" => qw(player)],	3095	["cf::object::player" => qw(player)],
1793	["cf::player" => qw(peaceful)],	3096	["cf::player" => qw(peaceful)],
1794	["cf::map" => qw(trigger)],	3097	["cf::map" => qw(trigger)],
1795	) {	3098	) {
1796	no strict 'refs';	3099	no strict 'refs';
…		…
1867	=back	3170	=back
1868		3171
1869	=cut	3172	=cut
1870		3173
1871	#############################################################################	3174	#############################################################################
		3175	# the server's init and main functions
1872		3176
1873	=head2 EXTENSION DATABASE SUPPORT	3177	sub load_facedata($) {
		3178	my ($path) = @_;
1874		3179
1875	Crossfire maintains a very simple database for extension use. It can	3180	# HACK to clear player env face cache, we need some signal framework
1876	currently store anything that can be serialised using Storable, which	3181	# for this (global event?)
1877	excludes objects.	3182	%ext::player_env::MUSIC_FACE_CACHE = ();
1878		3183
1879	The parameter C<$family> should best start with the name of the extension	3184	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1880	using it, it should be unique.
1881		3185
1882	=over 4	3186	warn "loading facedata from $path\n";
1883		3187
1884	=item $hashref = cf::db_get $family	3188	my $facedata;
		3189	0 < aio_load $path, $facedata
		3190	or die "$path: $!";
1885		3191
1886	Return a hashref for use by the extension C<$family>, which can be	3192	$facedata = Coro::Storable::thaw $facedata;
1887	modified. After modifications, you have to call C<cf::db_dirty> or
1888	C<cf::db_sync>.
1889		3193
1890	=item $value = cf::db_get $family => $key	3194	$facedata->{version} == 2
		3195	or cf::cleanup "$path: version mismatch, cannot proceed.";
1891		3196
1892	Returns a single value from the database	3197	# patch in the exptable
1893		3198	$facedata->{resource}{"res/exp_table"} = {
1894	=item cf::db_put $family => $hashref	3199	type => FT_RSRC,
1895		3200	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1896	Stores the given family hashref into the database. Updates are delayed, if
1897	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1898
1899	=item cf::db_put $family => $key => $value
1900
1901	Stores the given C<$value> in the family hash. Updates are delayed, if you
1902	want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_dirty
1905
1906	Marks the database as dirty, to be updated at a later time.
1907
1908	=item cf::db_sync
1909
1910	Immediately write the database to disk I<if it is dirty>.
1911
1912	=cut
1913
1914	our $DB;
1915
1916	{
1917	my $path = cf::localdir . "/database.pst";
1918
1919	sub db_load() {
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}
1922
1923	my $pid;
1924
1925	sub db_save() {
1926	waitpid $pid, 0 if $pid;
1927	if (0 == ($pid = fork)) {
1928	$DB->{_meta}{version} = 1;
1929	Storable::nstore $DB, "$path~";
1930	rename "$path~", $path;
1931	cf::_exit 0 if defined $pid;
1932	}
1933	}
1934
1935	my $dirty;
1936
1937	sub db_sync() {
1938	db_save if $dirty;
1939	undef $dirty;
1940	}
1941
1942	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1943	db_sync;
1944	});	3201	};
		3202	cf::cede_to_tick;
1945		3203
1946	sub db_dirty() {
1947	$dirty = 1;
1948	$idle->start;
1949	}	3204	{
		3205	my $faces = $facedata->{faceinfo};
1950		3206
1951	sub db_get($;$) {	3207	while (my ($face, $info) = each %$faces) {
1952	@_ >= 2	3208	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1953	? $DB->{$_[0]}{$_[1]}
1954	: ($DB->{$_[0]} ||= { })
1955	}
1956		3209
1957	sub db_put($$;$) {	3210	cf::face::set_visibility $idx, $info->{visibility};
1958	if (@_ >= 3) {	3211	cf::face::set_magicmap $idx, $info->{magicmap};
1959	$DB->{$_[0]}{$_[1]} = $_[2];	3212	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1960	} else {	3213	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1961	$DB->{$_[0]} = $_[1];
1962	}
1963	db_dirty;
1964	}
1965		3214
1966	cf::global->attach (	3215	cf::cede_to_tick;
1967	prio => 10000,
1968	on_cleanup => sub {
1969	db_sync;
1970	},	3216	}
1971	);
1972	}
1973		3217
1974	#############################################################################	3218	while (my ($face, $info) = each %$faces) {
1975	# the server's main()	3219	next unless $info->{smooth};
1976		3220
1977	sub cfg_load {	3221	my $idx = cf::face::find $face
		3222	or next;
		3223
		3224	if (my $smooth = cf::face::find $info->{smooth}) {
		3225	cf::face::set_smooth $idx, $smooth;
		3226	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3227	} else {
		3228	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3229	}
		3230
		3231	cf::cede_to_tick;
		3232	}
		3233	}
		3234
		3235	{
		3236	my $anims = $facedata->{animinfo};
		3237
		3238	while (my ($anim, $info) = each %$anims) {
		3239	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3240	cf::cede_to_tick;
		3241	}
		3242
		3243	cf::anim::invalidate_all; # d'oh
		3244	}
		3245
		3246	{
		3247	# TODO: for gcfclient pleasure, we should give resources
		3248	# that gcfclient doesn't grok a >10000 face index.
		3249	my $res = $facedata->{resource};
		3250
		3251	while (my ($name, $info) = each %$res) {
		3252	if (defined $info->{type}) {
		3253	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3254	my $data;
		3255
		3256	if ($info->{type} & 1) {
		3257	# prepend meta info
		3258
		3259	my $meta = $enc->encode ({
		3260	name => $name,
		3261	%{ $info->{meta} || {} },
		3262	});
		3263
		3264	$data = pack "(w/a*)*", $meta, $info->{data};
		3265	} else {
		3266	$data = $info->{data};
		3267	}
		3268
		3269	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3270	cf::face::set_type $idx, $info->{type};
		3271	} else {
		3272	$RESOURCE{$name} = $info;
		3273	}
		3274
		3275	cf::cede_to_tick;
		3276	}
		3277	}
		3278
		3279	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3280
		3281	1
		3282	}
		3283
		3284	cf::global->attach (on_resource_update => sub {
		3285	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3286	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3287
		3288	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3289	my $sound = $soundconf->{compat}[$_]
		3290	or next;
		3291
		3292	my $face = cf::face::find "sound/$sound->[1]";
		3293	cf::sound::set $sound->[0] => $face;
		3294	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3295	}
		3296
		3297	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3298	my $face = cf::face::find "sound/$v";
		3299	cf::sound::set $k => $face;
		3300	}
		3301	}
		3302	});
		3303
		3304	register_exticmd fx_want => sub {
		3305	my ($ns, $want) = @_;
		3306
		3307	while (my ($k, $v) = each %$want) {
		3308	$ns->fx_want ($k, $v);
		3309	}
		3310	};
		3311
		3312	sub load_resource_file($) {
		3313	my $guard = lock_acquire "load_resource_file";
		3314
		3315	my $status = load_resource_file_ $_[0];
		3316	get_slot 0.1, 100;
		3317	cf::arch::commit_load;
		3318
		3319	$status
		3320	}
		3321
		3322	sub reload_regions {
		3323	# HACK to clear player env face cache, we need some signal framework
		3324	# for this (global event?)
		3325	%ext::player_env::MUSIC_FACE_CACHE = ();
		3326
		3327	load_resource_file "$MAPDIR/regions"
		3328	or die "unable to load regions file\n";
		3329
		3330	for (cf::region::list) {
		3331	$_->{match} = qr/$_->{match}/
		3332	if exists $_->{match};
		3333	}
		3334	}
		3335
		3336	sub reload_facedata {
		3337	load_facedata "$DATADIR/facedata"
		3338	or die "unable to load facedata\n";
		3339	}
		3340
		3341	sub reload_archetypes {
		3342	load_resource_file "$DATADIR/archetypes"
		3343	or die "unable to load archetypes\n";
		3344	}
		3345
		3346	sub reload_treasures {
		3347	load_resource_file "$DATADIR/treasures"
		3348	or die "unable to load treasurelists\n";
		3349	}
		3350
		3351	sub reload_resources {
		3352	warn "reloading resource files...\n";
		3353
		3354	reload_facedata;
		3355	reload_archetypes;
		3356	reload_regions;
		3357	reload_treasures;
		3358
		3359	warn "finished reloading resource files\n";
		3360	}
		3361
		3362	sub reload_config {
1978	open my $fh, "<:utf8", cf::confdir . "/config"	3363	open my $fh, "<:utf8", "$CONFDIR/config"
1979	or return;	3364	or return;
1980		3365
1981	local $/;	3366	local $/;
1982	*CFG = YAML::Syck::Load <$fh>;	3367	*CFG = YAML::Load <$fh>;
		3368
		3369	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3370
		3371	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3372	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3373
		3374	if (exists $CFG{mlockall}) {
		3375	eval {
		3376	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3377	and die "WARNING: m(un)lockall failed: $!\n";
		3378	};
		3379	warn $@ if $@;
		3380	}
		3381	}
		3382
		3383	sub pidfile() {
		3384	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3385	or die "$PIDFILE: $!";
		3386	flock $fh, &Fcntl::LOCK_EX
		3387	or die "$PIDFILE: flock: $!";
		3388	$fh
		3389	}
		3390
		3391	# make sure only one server instance is running at any one time
		3392	sub atomic {
		3393	my $fh = pidfile;
		3394
		3395	my $pid = <$fh>;
		3396	kill 9, $pid if $pid > 0;
		3397
		3398	seek $fh, 0, 0;
		3399	print $fh $$;
1983	}	3400	}
1984		3401
1985	sub main {	3402	sub main {
		3403	cf::init_globals; # initialise logging
		3404
		3405	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3406	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3407	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3408	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3409
		3410	cf::init_experience;
		3411	cf::init_anim;
		3412	cf::init_attackmess;
		3413	cf::init_dynamic;
		3414	cf::init_block;
		3415
		3416	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3417
1986	# we must not ever block the main coroutine	3418	# we must not ever block the main coroutine
1987	local $Coro::idle = sub {	3419	local $Coro::idle = sub {
1988	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3420	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1989	(Coro::unblock_sub {	3421	(async {
1990	Event::one_event;	3422	$Coro::current->{desc} = "IDLE BUG HANDLER";
1991	})->();	3423	EV::loop EV::LOOP_ONESHOT;
		3424	})->prio (Coro::PRIO_MAX);
1992	};	3425	};
1993		3426
1994	cfg_load;	3427	evthread_start IO::AIO::poll_fileno;
1995	db_load;	3428
		3429	cf::sync_job {
		3430	reload_resources;
		3431	reload_config;
		3432	db_init;
		3433
		3434	cf::load_settings;
		3435	cf::load_materials;
		3436	cf::init_uuid;
		3437	cf::init_signals;
		3438	cf::init_commands;
		3439	cf::init_skills;
		3440
		3441	cf::init_beforeplay;
		3442
		3443	atomic;
		3444
1996	load_extensions;	3445	load_extensions;
		3446
		3447	utime time, time, $RUNTIMEFILE;
		3448
		3449	# no (long-running) fork's whatsoever before this point(!)
		3450	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3451
		3452	(pop @POST_INIT)->(0) while @POST_INIT;
		3453	};
		3454
1997	Event::loop;	3455	EV::loop;
1998	}	3456	}
1999		3457
2000	#############################################################################	3458	#############################################################################
2001	# initialisation	3459	# initialisation and cleanup
2002		3460
		3461	# install some emergency cleanup handlers
		3462	BEGIN {
		3463	our %SIGWATCHER = ();
		3464	for my $signal (qw(INT HUP TERM)) {
		3465	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3466	cf::cleanup "SIG$signal";
		3467	};
		3468	}
		3469	}
		3470
		3471	sub write_runtime_sync {
		3472	# first touch the runtime file to show we are still running:
		3473	# the fsync below can take a very very long time.
		3474
		3475	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3476
		3477	my $guard = cf::lock_acquire "write_runtime";
		3478
		3479	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3480	or return;
		3481
		3482	my $value = $cf::RUNTIME + 90 + 10;
		3483	# 10 is the runtime save interval, for a monotonic clock
		3484	# 60 allows for the watchdog to kill the server.
		3485
		3486	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3487	and return;
		3488
		3489	# always fsync - this file is important
		3490	aio_fsync $fh
		3491	and return;
		3492
		3493	# touch it again to show we are up-to-date
		3494	aio_utime $fh, undef, undef;
		3495
		3496	close $fh
		3497	or return;
		3498
		3499	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3500	and return;
		3501
		3502	warn "runtime file written.\n";
		3503
		3504	1
		3505	}
		3506
		3507	our $uuid_lock;
		3508	our $uuid_skip;
		3509
		3510	sub write_uuid_sync($) {
		3511	$uuid_skip ||= $_[0];
		3512
		3513	return if $uuid_lock;
		3514	local $uuid_lock = 1;
		3515
		3516	my $uuid = "$LOCALDIR/uuid";
		3517
		3518	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3519	or return;
		3520
		3521	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3522	$uuid_skip = 0;
		3523
		3524	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3525	and return;
		3526
		3527	# always fsync - this file is important
		3528	aio_fsync $fh
		3529	and return;
		3530
		3531	close $fh
		3532	or return;
		3533
		3534	aio_rename "$uuid~", $uuid
		3535	and return;
		3536
		3537	warn "uuid file written ($value).\n";
		3538
		3539	1
		3540
		3541	}
		3542
		3543	sub write_uuid($$) {
		3544	my ($skip, $sync) = @_;
		3545
		3546	$sync ? write_uuid_sync $skip
		3547	: async { write_uuid_sync $skip };
		3548	}
		3549
		3550	sub emergency_save() {
		3551	my $freeze_guard = cf::freeze_mainloop;
		3552
		3553	warn "enter emergency perl save\n";
		3554
		3555	cf::sync_job {
		3556	# use a peculiar iteration method to avoid tripping on perl
		3557	# refcount bugs in for. also avoids problems with players
		3558	# and maps saved/destroyed asynchronously.
		3559	warn "begin emergency player save\n";
		3560	for my $login (keys %cf::PLAYER) {
		3561	my $pl = $cf::PLAYER{$login} or next;
		3562	$pl->valid or next;
		3563	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3564	$pl->save;
		3565	}
		3566	warn "end emergency player save\n";
		3567
		3568	warn "begin emergency map save\n";
		3569	for my $path (keys %cf::MAP) {
		3570	my $map = $cf::MAP{$path} or next;
		3571	$map->valid or next;
		3572	$map->save;
		3573	}
		3574	warn "end emergency map save\n";
		3575
		3576	warn "begin emergency database checkpoint\n";
		3577	BDB::db_env_txn_checkpoint $DB_ENV;
		3578	warn "end emergency database checkpoint\n";
		3579
		3580	warn "begin write uuid\n";
		3581	write_uuid_sync 1;
		3582	warn "end write uuid\n";
		3583	};
		3584
		3585	warn "leave emergency perl save\n";
		3586	}
		3587
		3588	sub post_cleanup {
		3589	my ($make_core) = @_;
		3590
		3591	warn Carp::longmess "post_cleanup backtrace"
		3592	if $make_core;
		3593
		3594	my $fh = pidfile;
		3595	unlink $PIDFILE if <$fh> == $$;
		3596	}
		3597
		3598	# a safer delete_package, copied from Symbol
		3599	sub clear_package($) {
		3600	my $pkg = shift;
		3601
		3602	# expand to full symbol table name if needed
		3603	unless ($pkg =~ /^main::.*::$/) {
		3604	$pkg = "main$pkg" if $pkg =~ /^::/;
		3605	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3606	$pkg .= '::' unless $pkg =~ /::$/;
		3607	}
		3608
		3609	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3610	my $stem_symtab = *{$stem}{HASH};
		3611
		3612	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3613	or return;
		3614
		3615	# clear all symbols
		3616	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3617	for my $name (keys %$leaf_symtab) {
		3618	_gv_clear *{"$pkg$name"};
		3619	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3620	}
		3621	warn "cleared package $pkg\n";#d#
		3622	}
		3623
2003	sub reload() {	3624	sub do_reload_perl() {
2004	# can/must only be called in main	3625	# can/must only be called in main
2005	if ($Coro::current != $Coro::main) {	3626	if ($Coro::current != $Coro::main) {
2006	warn "can only reload from main coroutine\n";	3627	warn "can only reload from main coroutine";
2007	return;	3628	return;
2008	}	3629	}
2009		3630
		3631	return if $RELOAD++;
		3632
		3633	while ($RELOAD) {
2010	warn "reloading...";	3634	warn "reloading...";
2011		3635
2012	local $FREEZE = 1;	3636	warn "entering sync_job";
		3637
		3638	cf::sync_job {
		3639	cf::write_runtime_sync; # external watchdog should not bark
2013	cf::emergency_save;	3640	cf::emergency_save;
		3641	cf::write_runtime_sync; # external watchdog should not bark
2014		3642
2015	eval {	3643	warn "syncing database to disk";
		3644	BDB::db_env_txn_checkpoint $DB_ENV;
		3645
2016	# if anything goes wrong in here, we should simply crash as we already saved	3646	# if anything goes wrong in here, we should simply crash as we already saved
2017		3647
2018	# cancel all watchers	3648	warn "flushing outstanding aio requests";
2019	for (Event::all_watchers) {	3649	while (IO::AIO::nreqs || BDB::nreqs) {
2020	$_->cancel if $_->data & WF_AUTOCANCEL;	3650	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2021	}
2022
2023	# cancel all extension coros
2024	$_->cancel for values %EXT_CORO;
2025	%EXT_CORO = ();
2026
2027	# unload all extensions
2028	for (@exts) {
2029	warn "unloading <$_>";
2030	unload_extension $_;
2031	}
2032
2033	# unload all modules loaded from $LIBDIR
2034	while (my ($k, $v) = each %INC) {
2035	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2036
2037	warn "removing <$k>";
2038	delete $INC{$k};
2039
2040	$k =~ s/\.pm$//;
2041	$k =~ s/\//::/g;
2042
2043	if (my $cb = $k->can ("unload_module")) {
2044	$cb->();
2045	}	3651	}
2046		3652
2047	Symbol::delete_package $k;	3653	warn "cancelling all extension coros";
		3654	$_->cancel for values %EXT_CORO;
		3655	%EXT_CORO = ();
		3656
		3657	warn "removing commands";
		3658	%COMMAND = ();
		3659
		3660	warn "removing ext/exti commands";
		3661	%EXTCMD = ();
		3662	%EXTICMD = ();
		3663
		3664	warn "unloading/nuking all extensions";
		3665	for my $pkg (@EXTS) {
		3666	warn "... unloading $pkg";
		3667
		3668	if (my $cb = $pkg->can ("unload")) {
		3669	eval {
		3670	$cb->($pkg);
		3671	1
		3672	} or warn "$pkg unloaded, but with errors: $@";
		3673	}
		3674
		3675	warn "... clearing $pkg";
		3676	clear_package $pkg;
2048	}	3677	}
2049		3678
2050	# sync database to disk	3679	warn "unloading all perl modules loaded from $LIBDIR";
2051	cf::db_sync;	3680	while (my ($k, $v) = each %INC) {
2052	IO::AIO::flush;	3681	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2053		3682
		3683	warn "... unloading $k";
		3684	delete $INC{$k};
		3685
		3686	$k =~ s/\.pm$//;
		3687	$k =~ s/\//::/g;
		3688
		3689	if (my $cb = $k->can ("unload_module")) {
		3690	$cb->();
		3691	}
		3692
		3693	clear_package $k;
		3694	}
		3695
2054	# get rid of safe::, as good as possible	3696	warn "getting rid of safe::, as good as possible";
2055	Symbol::delete_package "safe::$_"	3697	clear_package "safe::$_"
2056	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3698	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2057		3699
2058	# remove register_script_function callbacks	3700	warn "unloading cf.pm \"a bit\"";
2059	# TODO
2060
2061	# unload cf.pm "a bit"
2062	delete $INC{"cf.pm"};	3701	delete $INC{"cf.pm"};
		3702	delete $INC{"cf/pod.pm"};
2063		3703
2064	# don't, removes xs symbols, too,	3704	# don't, removes xs symbols, too,
2065	# and global variables created in xs	3705	# and global variables created in xs
2066	#Symbol::delete_package __PACKAGE__;	3706	#clear_package __PACKAGE__;
2067		3707
2068	# reload cf.pm	3708	warn "unload completed, starting to reload now";
		3709
2069	warn "reloading cf.pm";	3710	warn "reloading cf.pm";
2070	require cf;	3711	require cf;
2071	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3712	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2072		3713
2073	# load config and database again	3714	warn "loading config and database again";
2074	cf::cfg_load;	3715	cf::reload_config;
2075	cf::db_load;
2076		3716
2077	# load extensions
2078	warn "load extensions";	3717	warn "loading extensions";
2079	cf::load_extensions;	3718	cf::load_extensions;
2080		3719
2081	# reattach attachments to objects	3720	warn "reattaching attachments to objects/players";
		3721	_global_reattach; # objects, sockets
		3722	warn "reattaching attachments to maps";
		3723	reattach $_ for values %MAP;
		3724	warn "reattaching attachments to players";
		3725	reattach $_ for values %PLAYER;
		3726
		3727	warn "running post_load";
		3728	(pop @POST_INIT)->(1) while @POST_INIT;
		3729
		3730	warn "leaving sync_job";
		3731
		3732	1
		3733	} or do {
		3734	warn $@;
		3735	cf::cleanup "error while reloading, exiting.";
		3736	};
		3737
2082	warn "reattach";	3738	warn "reloaded";
2083	_global_reattach;	3739	--$RELOAD;
		3740	}
		3741	};
		3742
		3743	our $RELOAD_WATCHER; # used only during reload
		3744
		3745	sub reload_perl() {
		3746	# doing reload synchronously and two reloads happen back-to-back,
		3747	# coro crashes during coro_state_free->destroy here.
		3748
		3749	$RELOAD_WATCHER ||= EV::timer $TICK * 1.5, 0, sub {
		3750	do_reload_perl;
		3751	undef $RELOAD_WATCHER;
2084	};	3752	};
2085
2086	if ($@) {
2087	warn $@;
2088	warn "error while reloading, exiting.";
2089	exit 1;
2090	}
2091
2092	warn "reloaded successfully";
2093	};
2094
2095	#############################################################################
2096
2097	unless ($LINK_MAP) {
2098	$LINK_MAP = cf::map::new;
2099
2100	$LINK_MAP->width (41);
2101	$LINK_MAP->height (41);
2102	$LINK_MAP->alloc;
2103	$LINK_MAP->path ("{link}");
2104	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2105	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2106
2107	# dirty hack because... archetypes are not yet loaded
2108	Event->timer (
2109	after => 2,
2110	cb => sub {
2111	$_[0]->w->cancel;
2112
2113	# provide some exits "home"
2114	my $exit = cf::object::new "exit";
2115
2116	$exit->slaying ($EMERGENCY_POSITION->[0]);
2117	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2118	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2119
2120	$LINK_MAP->insert ($exit->clone, 19, 19);
2121	$LINK_MAP->insert ($exit->clone, 19, 20);
2122	$LINK_MAP->insert ($exit->clone, 19, 21);
2123	$LINK_MAP->insert ($exit->clone, 20, 19);
2124	$LINK_MAP->insert ($exit->clone, 20, 21);
2125	$LINK_MAP->insert ($exit->clone, 21, 19);
2126	$LINK_MAP->insert ($exit->clone, 21, 20);
2127	$LINK_MAP->insert ($exit->clone, 21, 21);
2128
2129	$exit->destroy;
2130	});
2131
2132	$LINK_MAP->{deny_save} = 1;
2133	$LINK_MAP->{deny_reset} = 1;
2134
2135	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2136	}	3753	}
2137
2138	register "<global>", __PACKAGE__;
2139		3754
2140	register_command "reload" => sub {	3755	register_command "reload" => sub {
2141	my ($who, $arg) = @_;	3756	my ($who, $arg) = @_;
2142		3757
2143	if ($who->flag (FLAG_WIZ)) {	3758	if ($who->flag (FLAG_WIZ)) {
2144	$who->message ("start of reload.");
2145	reload;
2146	$who->message ("end of reload.");	3759	$who->message ("reloading server.");
		3760	async {
		3761	$Coro::current->{desc} = "perl_reload";
		3762	reload_perl;
		3763	};
2147	}	3764	}
2148	};	3765	};
2149		3766
2150	unshift @INC, $LIBDIR;	3767	unshift @INC, $LIBDIR;
2151		3768
2152	$TICK_WATCHER = Event->timer (	3769	my $bug_warning = 0;
2153	reentrant => 0,	3770
2154	prio => 0,	3771	our @WAIT_FOR_TICK;
2155	at => $NEXT_TICK || $TICK,	3772	our @WAIT_FOR_TICK_BEGIN;
2156	data => WF_AUTOCANCEL,	3773
2157	cb => sub {	3774	sub wait_for_tick {
2158	unless ($FREEZE) {	3775	return if tick_inhibit || $Coro::current == $Coro::main;
		3776
		3777	my $signal = new Coro::Signal;
		3778	push @WAIT_FOR_TICK, $signal;
		3779	$signal->wait;
		3780	}
		3781
		3782	sub wait_for_tick_begin {
		3783	return if tick_inhibit || $Coro::current == $Coro::main;
		3784
		3785	my $signal = new Coro::Signal;
		3786	push @WAIT_FOR_TICK_BEGIN, $signal;
		3787	$signal->wait;
		3788	}
		3789
		3790	sub tick {
		3791	if ($Coro::current != $Coro::main) {
		3792	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3793	unless ++$bug_warning > 10;
		3794	return;
		3795	}
		3796
2159	cf::server_tick; # one server iteration	3797	cf::server_tick; # one server iteration
2160	$RUNTIME += $TICK;
2161	}
2162		3798
2163	$NEXT_TICK += $TICK;	3799	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2164		3800	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2165	# if we are delayed by four ticks or more, skip them all	3801	Coro::async_pool {
2166	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3802	$Coro::current->{desc} = "runtime saver";
2167
2168	$TICK_WATCHER->at ($NEXT_TICK);
2169	$TICK_WATCHER->start;
2170	},
2171	);
2172
2173	IO::AIO::max_poll_time $TICK * 0.2;
2174
2175	Event->io (
2176	fd => IO::AIO::poll_fileno,
2177	poll => 'r',
2178	prio => 5,
2179	data => WF_AUTOCANCEL,
2180	cb => \&IO::AIO::poll_cb,
2181	);
2182
2183	Event->timer (
2184	data => WF_AUTOCANCEL,
2185	after => 0,
2186	interval => 10,
2187	cb => sub {
2188	(Coro::unblock_sub {
2189	write_runtime	3803	write_runtime_sync
2190	or warn "ERROR: unable to write runtime file: $!";	3804	or warn "ERROR: unable to write runtime file: $!";
2191	})->();	3805	};
2192	},	3806	}
2193	);	3807
		3808	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3809	$sig->send;
		3810	}
		3811	while (my $sig = shift @WAIT_FOR_TICK) {
		3812	$sig->send;
		3813	}
		3814
		3815	$LOAD = ($NOW - $TICK_START) / $TICK;
		3816	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3817
		3818	if (0) {
		3819	if ($NEXT_TICK) {
		3820	my $jitter = $TICK_START - $NEXT_TICK;
		3821	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3822	warn "jitter $JITTER\n";#d#
		3823	}
		3824	}
		3825	}
		3826
		3827	{
		3828	# configure BDB
		3829
		3830	BDB::min_parallel 8;
		3831	BDB::max_poll_reqs $TICK * 0.1;
		3832	$AnyEvent::BDB::WATCHER->priority (1);
		3833
		3834	unless ($DB_ENV) {
		3835	$DB_ENV = BDB::db_env_create;
		3836	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3837	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3838	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3839	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3840	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3841
		3842	cf::sync_job {
		3843	eval {
		3844	BDB::db_env_open
		3845	$DB_ENV,
		3846	$BDBDIR,
		3847	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3848	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3849	0666;
		3850
		3851	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3852	};
		3853
		3854	cf::cleanup "db_env_open(db): $@" if $@;
		3855	};
		3856	}
		3857
		3858	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3859	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3860	};
		3861	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3862	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3863	};
		3864	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3865	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3866	};
		3867	}
		3868
		3869	{
		3870	# configure IO::AIO
		3871
		3872	IO::AIO::min_parallel 8;
		3873	IO::AIO::max_poll_time $TICK * 0.1;
		3874	undef $AnyEvent::AIO::WATCHER;
		3875	}
		3876
		3877	my $_log_backtrace;
		3878
		3879	sub _log_backtrace {
		3880	my ($msg, @addr) = @_;
		3881
		3882	$msg =~ s/\n//;
		3883
		3884	# limit the # of concurrent backtraces
		3885	if ($_log_backtrace < 2) {
		3886	++$_log_backtrace;
		3887	my $perl_bt = Carp::longmess $msg;
		3888	async {
		3889	$Coro::current->{desc} = "abt $msg";
		3890
		3891	my @bt = fork_call {
		3892	@addr = map { sprintf "%x", $_ } @addr;
		3893	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3894	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3895	or die "addr2line: $!";
		3896
		3897	my @funcs;
		3898	my @res = <$fh>;
		3899	chomp for @res;
		3900	while (@res) {
		3901	my ($func, $line) = splice @res, 0, 2, ();
		3902	push @funcs, "[$func] $line";
		3903	}
		3904
		3905	@funcs
		3906	};
		3907
		3908	LOG llevInfo, "[ABT] $perl_bt\n";
		3909	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3910	LOG llevInfo, "[ABT] $_\n" for @bt;
		3911	--$_log_backtrace;
		3912	};
		3913	} else {
		3914	LOG llevInfo, "[ABT] $msg\n";
		3915	LOG llevInfo, "[ABT] [suppressed]\n";
		3916	}
		3917	}
		3918
		3919	# load additional modules
		3920	use cf::pod;
		3921
		3922	END { cf::emergency_save }
2194		3923
2195	1	3924	1
2196		3925

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