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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.465 by root, Thu Jan 8 00:54:55 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
20	use Digest::MD5;	56	use Digest::MD5;
21	use Fcntl;	57	use Fcntl;
		58	use YAML ();
22	use IO::AIO 2.31 ();	59	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
25		63
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
27		65
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		70
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
32		76
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		78
35	our %COMMAND = ();	79	our %COMMAND = ();
36	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
		81
		82	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
		85	our %EXT_CORO = (); # coroutines bound to extensions
		86	our %EXT_MAP = (); # pluggable maps
38		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	89	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		90
42	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
		106
		107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	109	our $NEXT_TICK;
45	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default off
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
46		116
47	our %CFG;	117	our %CFG;
48		118
49	our $UPTIME; $UPTIME ||= time;	119	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	120	our $RUNTIME;
		121	our $NOW;
51		122
52	our %MAP; # all maps	123	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	124	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	125	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	126
56	our %EXT_CORO;	127	# used to convert map paths into valid unix filenames by replacing / by ∕
		128	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		129
		130	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		131	our $LOADAVG; # same thing, but with alpha-smoothing
		132	our $JITTER; # average jitter
		133	our $TICK_START; # for load detecting purposes
		134
		135	our @POST_INIT;
		136
		137	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
57		138
58	binmode STDOUT;	139	binmode STDOUT;
59	binmode STDERR;	140	binmode STDERR;
60		141
61	# read virtual server time, if available	142	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	143	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	144	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	145	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	146	$RUNTIME = <$fh> + 0.;
66	}	147	}
67		148
68	mkdir cf::localdir;	149	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	150	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		151
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	152	our $EMERGENCY_POSITION;
		153
		154	sub cf::map::normalise;
77		155
78	#############################################################################	156	#############################################################################
79		157
80	=head2 GLOBAL VARIABLES	158	=head2 GLOBAL VARIABLES
81		159
…		…
88	=item $cf::RUNTIME	166	=item $cf::RUNTIME
89		167
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	168	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	169	every server tick.
92		170
93	=item $cf::LIBDIR	171	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		172	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		173	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		174
95	The perl library directory, where extensions and cf-specific modules can	175	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	176	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		177	unique-items directory, player file directory, random maps directory and
		178	database environment.
97		179
98	=item $cf::NOW	180	=item $cf::NOW
99		181
100	The time of the last (current) server tick.	182	The time of the last (current) server tick.
101		183
102	=item $cf::TICK	184	=item $cf::TICK
103		185
104	The interval between server ticks, in seconds.	186	The interval between server ticks, in seconds.
105		187
		188	=item $cf::LOADAVG
		189
		190	The current CPU load on the server (alpha-smoothed), as a value between 0
		191	(none) and 1 (overloaded), indicating how much time is spent on processing
		192	objects per tick. Healthy values are < 0.5.
		193
		194	=item $cf::LOAD
		195
		196	The raw value load value from the last tick.
		197
106	=item %cf::CFG	198	=item %cf::CFG
107		199
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	200	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	201	from wherever your confdir points to.
		202
		203	=item cf::wait_for_tick, cf::wait_for_tick_begin
		204
		205	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		206	returns directly I<after> the tick processing (and consequently, can only wake one process
		207	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		208
		209	=item @cf::INVOKE_RESULTS
		210
		211	This array contains the results of the last C<invoke ()> call. When
		212	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		213	that call.
110		214
111	=back	215	=back
112		216
113	=cut	217	=cut
114		218
115	BEGIN {	219	BEGIN {
116	*CORE::GLOBAL::warn = sub {	220	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	221	my $msg = join "", @_;
118	utf8::encode $msg;
119		222
120	$msg .= "\n"	223	$msg .= "\n"
121	unless $msg =~ /\n$/;	224	unless $msg =~ /\n$/;
122		225
		226	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		227
123	LOG llevError, "cfperl: $msg";	228	LOG llevError, $msg;
124	};	229	};
125	}	230	}
		231
		232	$Coro::State::DIEHOOK = sub {
		233	return unless $^S eq 0; # "eq", not "=="
		234
		235	if ($Coro::current == $Coro::main) {#d#
		236	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		237	return;#d#
		238	}#d#
		239
		240	# kill coroutine otherwise
		241	warn Carp::longmess $_[0];
		242	Coro::terminate
		243	};
		244
		245	$SIG{__DIE__} = sub { }; #d#?
126		246
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	247	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	248	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	249	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	250	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	251	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		252	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	253	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		254
134	# we bless all objects into (empty) derived classes to force a method lookup	255	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	256	# within the Safe compartment.
136	for my $pkg (qw(	257	for my $pkg (qw(
137	cf::global cf::attachable	258	cf::global cf::attachable
138	cf::object cf::object::player	259	cf::object cf::object::player
139	cf::client cf::player	260	cf::client cf::player
140	cf::arch cf::living	261	cf::arch cf::living
		262	cf::map cf::mapspace
141	cf::map cf::party cf::region	263	cf::party cf::region
142	)) {	264	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	265	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	266	}
146		267
147	$Event::DIED = sub {	268	$EV::DIED = sub {
148	warn "error in event callback: @_";	269	warn "error in event callback: @_";
149	};	270	};
150		271
151	my %ext_pkg;	272	#############################################################################
152	my @exts;
153	my @hook;
154		273
155	=head2 UTILITY FUNCTIONS	274	=head2 UTILITY FUNCTIONS
156		275
157	=over 4	276	=over 4
158		277
159	=cut	278	=item dumpval $ref
160		279
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	280	=cut
162		281
		282	sub dumpval {
		283	eval {
		284	local $SIG{__DIE__};
		285	my $d;
		286	if (1) {
		287	$d = new Data::Dumper([$_[0]], ["*var"]);
		288	$d->Terse(1);
		289	$d->Indent(2);
		290	$d->Quotekeys(0);
		291	$d->Useqq(1);
		292	#$d->Bless(...);
		293	$d->Seen($_[1]) if @_ > 1;
		294	$d = $d->Dump();
		295	}
		296	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		297	$d
		298	} || "[unable to dump $_[0]: '$@']";
		299	}
		300
163	=item $ref = cf::from_json $json	301	=item $ref = cf::decode_json $json
164		302
165	Converts a JSON string into the corresponding perl data structure.	303	Converts a JSON string into the corresponding perl data structure.
166		304
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	305	=item $json = cf::encode_json $ref
175		306
176	Converts a perl data structure into its JSON representation.	307	Converts a perl data structure into its JSON representation.
177		308
178	=cut	309	=cut
179		310
180	sub to_json($) {	311	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		312
185	=item my $guard = cf::guard { BLOCK }	313	sub encode_json($) { $json_coder->encode ($_[0]) }
		314	sub decode_json($) { $json_coder->decode ($_[0]) }
186		315
187	Run the given callback when the guard object gets destroyed (useful for	316	=item cf::post_init { BLOCK }
188	coroutine cancellations).
189		317
190	You can call C<< ->cancel >> on the guard object to stop the block from	318	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
191	being executed.	319	but I<before> the server starts ticking again.
192		320
193	=cut	321	The cdoeblock will have a single boolean argument to indicate whether this
		322	is a reload or not.
194		323
195	sub guard(&) {	324	=cut
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198		325
199	sub cf::guard::cancel {	326	sub post_init(&) {
200	${$_[0]} = sub { };	327	push @POST_INIT, shift;
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}	328	}
206		329
207	=item cf::lock_wait $string	330	=item cf::lock_wait $string
208		331
209	Wait until the given lock is available. See cf::lock_acquire.	332	Wait until the given lock is available. See cf::lock_acquire.
210		333
211	=item my $lock = cf::lock_acquire $string	334	=item my $lock = cf::lock_acquire $string
212		335
213	Wait until the given lock is available and then acquires it and returns	336	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	337	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	338	for example when the coroutine gets canceled), the lock is automatically
216	returned.	339	returned.
217		340
		341	Locks are *not* recursive, locking from the same coro twice results in a
		342	deadlocked coro.
		343
218	Lock names should begin with a unique identifier (for example, find_map	344	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	345	uses map_find and cf::map::load uses map_load).
220		346
221	=cut	347	=item $locked = cf::lock_active $string
222		348
223	our %LOCK;	349	Return true if the lock is currently active, i.e. somebody has locked it.
		350
		351	=cut
		352
		353	our $LOCKS = new Coro::SemaphoreSet;
224		354
225	sub lock_wait($) {	355	sub lock_wait($) {
226	my ($key) = @_;	356	$LOCKS->wait ($_[0]);
227
228	# wait for lock, if any
229	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;
232	}
233	}	357	}
234		358
235	sub lock_acquire($) {	359	sub lock_acquire($) {
236	my ($key) = @_;	360	$LOCKS->guard ($_[0])
		361	}
237		362
238	# wait, to be sure we are not locked	363	sub lock_active($) {
239	lock_wait $key;	364	$LOCKS->count ($_[0]) < 1
		365	}
240		366
241	$LOCK{$key} = [];	367	sub freeze_mainloop {
		368	tick_inhibit_inc;
242		369
243	cf::guard {	370	&Guard::guard (\&tick_inhibit_dec);
244	# wake up all waiters, to be on the safe side	371	}
245	$_->ready for @{ delete $LOCK{$key} };	372
		373	=item cf::periodic $interval, $cb
		374
		375	Like EV::periodic, but randomly selects a starting point so that the actions
		376	get spread over timer.
		377
		378	=cut
		379
		380	sub periodic($$) {
		381	my ($interval, $cb) = @_;
		382
		383	my $start = rand List::Util::min 180, $interval;
		384
		385	EV::periodic $start, $interval, 0, $cb
		386	}
		387
		388	=item cf::get_slot $time[, $priority[, $name]]
		389
		390	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		391	This call blocks and returns only when you have at least C<$time> seconds
		392	of cpu time till the next tick. The slot is only valid till the next cede.
		393
		394	The optional C<$name> can be used to identify the job to run. It might be
		395	used for statistical purposes and should identify the same time-class.
		396
		397	Useful for short background jobs.
		398
		399	=cut
		400
		401	our @SLOT_QUEUE;
		402	our $SLOT_QUEUE;
		403
		404	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		405	$SLOT_QUEUE = Coro::async {
		406	$Coro::current->desc ("timeslot manager");
		407
		408	my $signal = new Coro::Signal;
		409
		410	while () {
		411	next_job:
		412	my $avail = cf::till_tick;
		413	if ($avail > 0.01) {
		414	for (0 .. $#SLOT_QUEUE) {
		415	if ($SLOT_QUEUE[$_][0] < $avail) {
		416	my $job = splice @SLOT_QUEUE, $_, 1, ();
		417	$job->[2]->send;
		418	Coro::cede;
		419	goto next_job;
		420	}
		421	}
		422	}
		423
		424	if (@SLOT_QUEUE) {
		425	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		426	push @cf::WAIT_FOR_TICK, $signal;
		427	$signal->wait;
		428	} else {
		429	Coro::schedule;
		430	}
246	}	431	}
		432	};
		433
		434	sub get_slot($;$$) {
		435	return if tick_inhibit || $Coro::current == $Coro::main;
		436
		437	my ($time, $pri, $name) = @_;
		438
		439	$time = $TICK * .6 if $time > $TICK * .6;
		440	my $sig = new Coro::Signal;
		441
		442	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		443	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		444	$SLOT_QUEUE->ready;
		445	$sig->wait;
247	}	446	}
248		447
249	=item cf::async { BLOCK }	448	=item cf::async { BLOCK }
250		449
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	450	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	451	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		452	thing you are allowed to do is call C<prio> on it.
253		453
254	=cut	454	=cut
255		455
256	sub async(&) {	456	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		457
265	=item cf::sync_job { BLOCK }	458	=item cf::sync_job { BLOCK }
266		459
267	The design of crossfire+ requires that the main coro ($Coro::main) is	460	The design of Deliantra requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	461	is always able to handle events or runnable, as Deliantra is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	462	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		463	acceptable.
270		464
271	If it must be done, put the blocking parts into C<sync_job>. This will run	465	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	466	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	467	server will be frozen during this time, so the block should either finish
274	fast or be very important.	468	fast or be very important.
…		…
277		471
278	sub sync_job(&) {	472	sub sync_job(&) {
279	my ($job) = @_;	473	my ($job) = @_;
280		474
281	if ($Coro::current == $Coro::main) {	475	if ($Coro::current == $Coro::main) {
		476	my $time = EV::time;
		477
282	# this is the main coro, too bad, we have to block	478	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	479	# till the operation succeeds, freezing the server :/
284		480
285	# TODO: use suspend/resume instead	481	LOG llevError, Carp::longmess "sync job";#d#
286	# (but this is cancel-safe)	482
287	local $FREEZE = 1;	483	my $freeze_guard = freeze_mainloop;
288		484
289	my $busy = 1;	485	my $busy = 1;
290	my @res;	486	my @res;
291		487
292	(Coro::async {	488	(async {
		489	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	490	@res = eval { $job->() };
294	warn $@ if $@;	491	warn $@ if $@;
295	undef $busy;	492	undef $busy;
296	})->prio (Coro::PRIO_MAX);	493	})->prio (Coro::PRIO_MAX);
297		494
298	while ($busy) {	495	while ($busy) {
		496	if (Coro::nready) {
299	Coro::cede_notself;	497	Coro::cede_notself;
300	Event::one_event unless Coro::nready;	498	} else {
		499	EV::loop EV::LOOP_ONESHOT;
301	}	500	}
		501	}
		502
		503	my $time = EV::time - $time;
		504
		505	$TICK_START += $time; # do not account sync jobs to server load
302		506
303	wantarray ? @res : $res[0]	507	wantarray ? @res : $res[0]
304	} else {	508	} else {
305	# we are in another coroutine, how wonderful, everything just works	509	# we are in another coroutine, how wonderful, everything just works
306		510
307	$job->()	511	$job->()
308	}	512	}
309	}	513	}
310		514
311	=item $coro = cf::coro { BLOCK }	515	=item $coro = cf::async_ext { BLOCK }
312		516
313	Creates and returns a new coro. This coro is automcatially being canceled	517	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	518	extension calling this is being unloaded.
315		519
316	=cut	520	=cut
317		521
318	sub coro(&) {	522	sub async_ext(&) {
319	my $cb = shift;	523	my $cb = shift;
320		524
321	my $coro = &cf::async ($cb);	525	my $coro = &Coro::async ($cb);
322		526
323	$coro->on_destroy (sub {	527	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	528	delete $EXT_CORO{$coro+0};
325	});	529	});
326	$EXT_CORO{$coro+0} = $coro;	530	$EXT_CORO{$coro+0} = $coro;
327		531
328	$coro	532	$coro
329	}	533	}
330		534
331	sub write_runtime {	535	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		536
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	537	Executes the given code block with the given arguments in a seperate
335	or return;	538	process, returning the results. Everything must be serialisable with
		539	Coro::Storable. May, of course, block. Note that the executed sub may
		540	never block itself or use any form of event handling.
336		541
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	542	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		543
341	aio_fsync $fh	544	sub fork_call(&@) {
342	and return;	545	my ($cb, @args) = @_;
343		546
344	close $fh	547	# we seemingly have to make a local copy of the whole thing,
345	or return;	548	# otherwise perl prematurely frees the stuff :/
		549	# TODO: investigate and fix (likely this will be rather laborious)
346		550
347	aio_rename "$runtime~", $runtime	551	my @res = Coro::Util::fork_eval {
348	and return;	552	reset_signals;
		553	&$cb
		554	}, @args;
349		555
		556	wantarray ? @res : $res[-1]
		557	}
		558
		559	=item $coin = coin_from_name $name
		560
		561	=cut
		562
		563	our %coin_alias = (
		564	"silver" => "silvercoin",
		565	"silvercoin" => "silvercoin",
		566	"silvercoins" => "silvercoin",
		567	"gold" => "goldcoin",
		568	"goldcoin" => "goldcoin",
		569	"goldcoins" => "goldcoin",
		570	"platinum" => "platinacoin",
		571	"platinumcoin" => "platinacoin",
		572	"platinumcoins" => "platinacoin",
		573	"platina" => "platinacoin",
		574	"platinacoin" => "platinacoin",
		575	"platinacoins" => "platinacoin",
		576	"royalty" => "royalty",
		577	"royalties" => "royalty",
		578	);
		579
		580	sub coin_from_name($) {
		581	$coin_alias{$_[0]}
		582	? cf::arch::find $coin_alias{$_[0]}
		583	: undef
		584	}
		585
		586	=item $value = cf::db_get $family => $key
		587
		588	Returns a single value from the environment database.
		589
		590	=item cf::db_put $family => $key => $value
		591
		592	Stores the given C<$value> in the family. It can currently store binary
		593	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		594
		595	=item $db = cf::db_table "name"
		596
		597	Create and/or open a new database table. The string must not be "db" and must be unique
		598	within each server.
		599
		600	=cut
		601
		602	sub db_table($) {
		603	my ($name) = @_;
		604	my $db = BDB::db_create $DB_ENV;
		605
		606	eval {
		607	$db->set_flags (BDB::CHKSUM);
		608
		609	utf8::encode $name;
		610	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		611	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		612	cf::cleanup "db_open(db): $!" if $!;
		613	};
		614	cf::cleanup "db_open(db): $@" if $@;
		615
		616	$db
		617	}
		618
		619	our $DB;
		620
		621	sub db_init {
		622	cf::sync_job {
		623	$DB ||= db_table "db";
		624	};
		625	}
		626
		627	sub db_get($$) {
		628	my $key = "$_[0]/$_[1]";
		629
		630	cf::sync_job {
		631	BDB::db_get $DB, undef, $key, my $data;
		632
		633	$! ? ()
		634	: $data
350	1	635	}
		636	}
		637
		638	sub db_put($$$) {
		639	BDB::dbreq_pri 4;
		640	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		641	}
		642
		643	=item cf::cache $id => [$paths...], $processversion => $process
		644
		645	Generic caching function that returns the value of the resource $id,
		646	caching and regenerating as required.
		647
		648	This function can block.
		649
		650	=cut
		651
		652	sub cache {
		653	my ($id, $src, $processversion, $process) = @_;
		654
		655	my $meta =
		656	join "\x00",
		657	$processversion,
		658	map {
		659	aio_stat $_
		660	and Carp::croak "$_: $!";
		661
		662	($_, (stat _)[7,9])
		663	} @$src;
		664
		665	my $dbmeta = db_get cache => "$id/meta";
		666	if ($dbmeta ne $meta) {
		667	# changed, we may need to process
		668
		669	my @data;
		670	my $md5;
		671
		672	for (0 .. $#$src) {
		673	0 <= aio_load $src->[$_], $data[$_]
		674	or Carp::croak "$src->[$_]: $!";
		675	}
		676
		677	# if processing is expensive, check
		678	# checksum first
		679	if (1) {
		680	$md5 =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	cf::cede_to_tick;
		685	($src->[$_], Digest::MD5::md5_hex $data[$_])
		686	} 0.. $#$src;
		687
		688
		689	my $dbmd5 = db_get cache => "$id/md5";
		690	if ($dbmd5 eq $md5) {
		691	db_put cache => "$id/meta", $meta;
		692
		693	return db_get cache => "$id/data";
		694	}
		695	}
		696
		697	my $t1 = Time::HiRes::time;
		698	my $data = $process->(\@data);
		699	my $t2 = Time::HiRes::time;
		700
		701	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		702
		703	db_put cache => "$id/data", $data;
		704	db_put cache => "$id/md5" , $md5;
		705	db_put cache => "$id/meta", $meta;
		706
		707	return $data;
		708	}
		709
		710	db_get cache => "$id/data"
		711	}
		712
		713	=item cf::datalog type => key => value, ...
		714
		715	Log a datalog packet of the given type with the given key-value pairs.
		716
		717	=cut
		718
		719	sub datalog($@) {
		720	my ($type, %kv) = @_;
		721	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	722	}
352		723
353	=back	724	=back
354		725
355	=cut	726	=cut
356		727
357	#############################################################################	728	#############################################################################
358		729
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476
477	#############################################################################
478
479	=head2 ATTACHABLE OBJECTS	730	=head2 ATTACHABLE OBJECTS
480		731
481	Many objects in crossfire are so-called attachable objects. That means you can	732	Many objects in deliantra are so-called attachable objects. That means you can
482	attach callbacks/event handlers (a collection of which is called an "attachment")	733	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	734	to it. All such attachable objects support the following methods.
484		735
485	In the following description, CLASS can be any of C<global>, C<object>	736	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	737	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	738	Deliantra).
488		739
489	=over 4	740	=over 4
490		741
491	=item $attachable->attach ($attachment, key => $value...)	742	=item $attachable->attach ($attachment, key => $value...)
492		743
…		…
536	=item cf::CLASS::attachment $name, ...	787	=item cf::CLASS::attachment $name, ...
537		788
538	Register an attachment by C<$name> through which attachable objects of the	789	Register an attachment by C<$name> through which attachable objects of the
539	given CLASS can refer to this attachment.	790	given CLASS can refer to this attachment.
540		791
541	Some classes such as crossfire maps and objects can specify attachments	792	Some classes such as deliantra maps and objects can specify attachments
542	that are attached at load/instantiate time, thus the need for a name.	793	that are attached at load/instantiate time, thus the need for a name.
543		794
544	These calls expect any number of the following handler/hook descriptions:	795	These calls expect any number of the following handler/hook descriptions:
545		796
546	=over 4	797	=over 4
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	857	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	858	our @CB_MAP = ();
608		859
609	my %attachment;	860	my %attachment;
610		861
		862	sub cf::attachable::thawer_merge {
		863	# simply override everything except _meta
		864	local $_[0]{_meta};
		865	%{$_[0]} = %{$_[1]};
		866	}
		867
611	sub _attach_cb($$$$) {	868	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	869	my ($registry, $event, $prio, $cb) = @_;
613		870
614	use sort 'stable';	871	use sort 'stable';
615		872
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	906	$registry = $CB_TYPE[$object_type] ||= [];
650		907
651	} elsif ($type eq "subtype") {	908	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	909	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	910	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	911	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		912
656	} elsif ($type eq "package") {	913	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	914	my $pkg = shift @arg;
658		915
659	while (my ($name, $id) = each %cb_id) {	916	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	945	_attach $registry, $klass, @attach;
689	}	946	}
690		947
691	$obj->{$name} = \%arg;	948	$obj->{$name} = \%arg;
692	} else {	949	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	950	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	951	}
695		952
696	$obj->{_attachment}{$name} = undef;	953	$obj->{_attachment}{$name} = undef;
697	}	954	}
698		955
…		…
700	if (ref $_[0]) {	957	if (ref $_[0]) {
701	_object_attach @_;	958	_object_attach @_;
702	} else {	959	} else {
703	_attach shift->_attach_registry, @_;	960	_attach shift->_attach_registry, @_;
704	}	961	}
		962	_recalc_want;
705	};	963	};
706		964
707	# all those should be optimised	965	# all those should be optimised
708	sub cf::attachable::detach {	966	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	967	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	970	delete $obj->{_attachment}{$name};
713	reattach ($obj);	971	reattach ($obj);
714	} else {	972	} else {
715	Carp::croak "cannot, currently, detach class attachments";	973	Carp::croak "cannot, currently, detach class attachments";
716	}	974	}
		975	_recalc_want;
717	};	976	};
718		977
719	sub cf::attachable::attached {	978	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	979	my ($obj, $name) = @_;
721		980
…		…
736	";	995	";
737	die if $@;	996	die if $@;
738	}	997	}
739		998
740	our $override;	999	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1000	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		1001
743	sub override {	1002	sub override {
744	$override = 1;	1003	$override = 1;
745	@invoke_results = ();	1004	@INVOKE_RESULTS = (@_);
746	}	1005	}
747		1006
748	sub do_invoke {	1007	sub do_invoke {
749	my $event = shift;	1008	my $event = shift;
750	my $callbacks = shift;	1009	my $callbacks = shift;
751		1010
752	@invoke_results = ();	1011	@INVOKE_RESULTS = ();
753		1012
754	local $override;	1013	local $override;
755		1014
756	for (@$callbacks) {	1015	for (@$callbacks) {
757	eval { &{$_->[1]} };	1016	eval { &{$_->[1]} };
…		…
766	}	1025	}
767		1026
768	0	1027	0
769	}	1028	}
770		1029
771	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1030	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
772		1031
773	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
774		1033
775	Generate an object-specific event with the given arguments.	1034	Generate an object-specific event with the given arguments.
776		1035
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1036	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	1037	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	1038	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		1039
781	=back	1040	=back
782		1041
783	=cut	1042	=cut
784		1043
785	#############################################################################	1044	#############################################################################
786	# object support	1045	# object support
		1046
		1047	sub _object_equal($$);
		1048	sub _object_equal($$) {
		1049	my ($a, $b) = @_;
		1050
		1051	return 0 unless (ref $a) eq (ref $b);
		1052
		1053	if ("HASH" eq ref $a) {
		1054	my @ka = keys %$a;
		1055	my @kb = keys %$b;
		1056
		1057	return 0 if @ka != @kb;
		1058
		1059	for (0 .. $#ka) {
		1060	return 0 unless $ka[$_] eq $kb[$_];
		1061	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1062	}
		1063
		1064	} elsif ("ARRAY" eq ref $a) {
		1065
		1066	return 0 if @$a != @$b;
		1067
		1068	for (0 .. $#$a) {
		1069	return 0 unless _object_equal $a->[$_], $b->[$_];
		1070	}
		1071
		1072	} elsif ($a ne $b) {
		1073	return 0;
		1074	}
		1075
		1076	1
		1077	}
		1078
		1079	our $SLOW_MERGES;#d#
		1080	sub _can_merge {
		1081	my ($ob1, $ob2) = @_;
		1082
		1083	++$SLOW_MERGES;#d#
		1084
		1085	# we do the slow way here
		1086	return _object_equal $ob1, $ob2
		1087	}
787		1088
788	sub reattach {	1089	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	1090	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	1091	my ($obj) = @_;
		1092
		1093	# no longer needed after getting rid of delete_package?
		1094	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		1095
792	my $registry = $obj->registry;	1096	my $registry = $obj->registry;
793		1097
794	@$registry = ();	1098	@$registry = ();
795		1099
…		…
810	cf::attachable->attach (	1114	cf::attachable->attach (
811	prio => -1000000,	1115	prio => -1000000,
812	on_instantiate => sub {	1116	on_instantiate => sub {
813	my ($obj, $data) = @_;	1117	my ($obj, $data) = @_;
814		1118
815	$data = from_json $data;	1119	$data = decode_json $data;
816		1120
817	for (@$data) {	1121	for (@$data) {
818	my ($name, $args) = @$_;	1122	my ($name, $args) = @$_;
819		1123
820	$obj->attach ($name, %{$args || {} });	1124	$obj->attach ($name, %{$args || {} });
…		…
836	sub object_freezer_save {	1140	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1141	my ($filename, $rdata, $objs) = @_;
838		1142
839	sync_job {	1143	sync_job {
840	if (length $$rdata) {	1144	if (length $$rdata) {
		1145	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1146	warn sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1147	$decname, length $$rdata, scalar @$objs;
843		1148
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1149	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1150	aio_chmod $fh, SAVE_MODE;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1151	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	1152	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	1153	aio_close $fh;
849		1154
850	if (@$objs) {	1155	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1156	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1157	aio_chmod $fh, SAVE_MODE;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1158	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1159	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	1160	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	1161	aio_close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1162	aio_rename "$filename.pst~", "$filename.pst";
858	}	1163	}
859	} else {	1164	} else {
860	aio_unlink "$filename.pst";	1165	aio_unlink "$filename.pst";
861	}	1166	}
862		1167
863	aio_rename "$filename~", $filename;	1168	aio_rename "$filename~", $filename;
		1169
		1170	$filename =~ s%/[^/]+$%%;
		1171	aio_pathsync $filename if $cf::USE_FSYNC;
864	} else {	1172	} else {
865	warn "FATAL: $filename~: $!\n";	1173	warn "unable to save objects: $filename~: $!\n";
866	}	1174	}
867	} else {	1175	} else {
868	aio_unlink $filename;	1176	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1177	aio_unlink "$filename.pst";
870	}	1178	}
871	}	1179	};
872	}	1180	}
873		1181
874	sub object_freezer_as_string {	1182	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1183	my ($rdata, $objs) = @_;
876		1184
…		…
888	or return;	1196	or return;
889		1197
890	unless (aio_stat "$filename.pst") {	1198	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1199	(aio_load "$filename.pst", $av) >= 0
892	or return;	1200	or return;
		1201
893	$av = eval { (Storable::thaw $av)->{objs} };	1202	my $st = eval { Coro::Storable::thaw $av };
		1203	$av = $st->{objs};
894	}	1204	}
895		1205
		1206	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1207	warn sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1208	$decname, length $data, scalar @{$av || []};
		1209
898	return ($data, $av);	1210	($data, $av)
899	}	1211	}
		1212
		1213	=head2 COMMAND CALLBACKS
		1214
		1215	=over 4
		1216
		1217	=cut
900		1218
901	#############################################################################	1219	#############################################################################
902	# command handling &c	1220	# command handling &c
903		1221
904	=item cf::register_command $name => \&callback($ob,$args);	1222	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1235	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1236	}
919		1237
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1238	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1239
922	Register a callbackf ro execution when the client sends an extcmd packet.	1240	Register a callback for execution when the client sends an (synchronous)
		1241	extcmd packet. Ext commands will be processed in the order they are
		1242	received by the server, like other user commands. The first argument is
		1243	the logged-in player. Ext commands can only be processed after a player
		1244	has logged in successfully.
923		1245
924	If the callback returns something, it is sent back as if reply was being	1246	If the callback returns something, it is sent back as if reply was being
925	called.	1247	called.
926		1248
		1249	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1250
		1251	Register a callback for execution when the client sends an (asynchronous)
		1252	exticmd packet. Exti commands are processed by the server as soon as they
		1253	are received, i.e. out of order w.r.t. other commands. The first argument
		1254	is a client socket. Exti commands can be received anytime, even before
		1255	log-in.
		1256
		1257	If the callback returns something, it is sent back as if reply was being
		1258	called.
		1259
927	=cut	1260	=cut
928		1261
929	sub register_extcmd {	1262	sub register_extcmd {
930	my ($name, $cb) = @_;	1263	my ($name, $cb) = @_;
931		1264
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1265	$EXTCMD{$name} = $cb;
936	}	1266	}
		1267
		1268	sub register_exticmd {
		1269	my ($name, $cb) = @_;
		1270
		1271	$EXTICMD{$name} = $cb;
		1272	}
		1273
		1274	use File::Glob ();
937		1275
938	cf::player->attach (	1276	cf::player->attach (
939	on_command => sub {	1277	on_command => sub {
940	my ($pl, $name, $params) = @_;	1278	my ($pl, $name, $params) = @_;
941		1279
…		…
949	cf::override;	1287	cf::override;
950	},	1288	},
951	on_extcmd => sub {	1289	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1290	my ($pl, $buf) = @_;
953		1291
954	my $msg = eval { from_json $buf };	1292	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1293
956	if (ref $msg) {	1294	if (ref $msg) {
		1295	my ($type, $reply, @payload) =
		1296	"ARRAY" eq ref $msg
		1297	? @$msg
		1298	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1299
		1300	my @reply;
		1301
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1302	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1303	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1304	}
		1305
		1306	$pl->ext_reply ($reply, @reply)
		1307	if $reply;
		1308
962	} else {	1309	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1310	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1311	}
965		1312
966	cf::override;	1313	cf::override;
967	},	1314	},
968	);	1315	);
969		1316
970	sub register {	1317	# "readahead" all extensions
971	my ($base, $pkg) = @_;	1318	sub cache_extensions {
		1319	my $grp = IO::AIO::aio_group;
972		1320
973	#TODO	1321	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
974	}	1322	for (grep /\.ext$/, @{$_[0]}) {
		1323	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1324	}
		1325	};
975		1326
		1327	$grp
		1328	}
		1329
976	sub load_extension {	1330	sub load_extensions {
		1331	cf::sync_job {
		1332	my %todo;
		1333
		1334	for my $path (<$LIBDIR/*.ext>) {
		1335	next unless -r $path;
		1336
		1337	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1338	my $base = $1;
		1339	my $pkg = $1;
		1340	$pkg =~ s/[^[:word:]]/_/g;
		1341	$pkg = "ext::$pkg";
		1342
		1343	open my $fh, "<:utf8", $path
		1344	or die "$path: $!";
		1345
		1346	my $source = do { local $/; <$fh> };
		1347
		1348	my %ext = (
		1349	path => $path,
		1350	base => $base,
		1351	pkg => $pkg,
		1352	);
		1353
		1354	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1355	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1356
		1357	$ext{source} =
		1358	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1359	. "#line 1 \"$path\"\n{\n"
		1360	. $source
		1361	. "\n};\n1";
		1362
		1363	$todo{$base} = \%ext;
		1364	}
		1365
		1366	my %done;
		1367	while (%todo) {
		1368	my $progress;
		1369
		1370	while (my ($k, $v) = each %todo) {
		1371	for (split /,\s*/, $v->{meta}{depends}) {
		1372	goto skip
		1373	unless exists $done{$_};
		1374	}
		1375
		1376	warn "... loading '$k' into '$v->{pkg}'\n";
		1377
		1378	unless (eval $v->{source}) {
		1379	my $msg = $@ ? "$v->{path}: $@\n"
		1380	: "$v->{base}: extension inactive.\n";
		1381
		1382	if (exists $v->{meta}{mandatory}) {
		1383	warn $msg;
		1384	cf::cleanup "mandatory extension failed to load, exiting.";
		1385	}
		1386
		1387	warn $msg;
		1388	}
		1389
		1390	$done{$k} = delete $todo{$k};
		1391	push @EXTS, $v->{pkg};
		1392	$progress = 1;
		1393	}
		1394
		1395	skip:
		1396	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1397	unless $progress;
		1398	}
		1399	};
		1400	}
		1401
		1402	#############################################################################
		1403
		1404	=back
		1405
		1406	=head2 CORE EXTENSIONS
		1407
		1408	Functions and methods that extend core deliantra objects.
		1409
		1410	=cut
		1411
		1412	package cf::player;
		1413
		1414	use Coro::AIO;
		1415
		1416	=head3 cf::player
		1417
		1418	=over 4
		1419
		1420	=item cf::player::num_playing
		1421
		1422	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1423
		1424	=cut
		1425
		1426	sub num_playing {
		1427	scalar grep
		1428	$_->ob->map
		1429	&& !$_->hidden
		1430	&& !$_->ob->flag (cf::FLAG_WIZ),
		1431	cf::player::list
		1432	}
		1433
		1434	=item cf::player::find $login
		1435
		1436	Returns the given player object, loading it if necessary (might block).
		1437
		1438	=cut
		1439
		1440	sub playerdir($) {
		1441	"$PLAYERDIR/"
		1442	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1443	}
		1444
		1445	sub path($) {
		1446	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1447
		1448	(playerdir $login) . "/playerdata"
		1449	}
		1450
		1451	sub find_active($) {
		1452	$cf::PLAYER{$_[0]}
		1453	and $cf::PLAYER{$_[0]}->active
		1454	and $cf::PLAYER{$_[0]}
		1455	}
		1456
		1457	sub exists($) {
		1458	my ($login) = @_;
		1459
		1460	$cf::PLAYER{$login}
		1461	or !aio_stat path $login
		1462	}
		1463
		1464	sub find($) {
		1465	return $cf::PLAYER{$_[0]} || do {
		1466	my $login = $_[0];
		1467
		1468	my $guard = cf::lock_acquire "user_find:$login";
		1469
		1470	$cf::PLAYER{$_[0]} || do {
		1471	# rename old playerfiles to new ones
		1472	#TODO: remove when no longer required
		1473	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1474	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1475	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1476	aio_unlink +(playerdir $login) . "/$login.pl";
		1477
		1478	my $f = new_from_file cf::object::thawer path $login
		1479	or return;
		1480
		1481	my $pl = cf::player::load_pl $f
		1482	or return;
		1483
		1484	local $cf::PLAYER_LOADING{$login} = $pl;
		1485	$f->resolve_delayed_derefs;
		1486	$cf::PLAYER{$login} = $pl
		1487	}
		1488	}
		1489	}
		1490
		1491	sub save($) {
		1492	my ($pl) = @_;
		1493
		1494	return if $pl->{deny_save};
		1495
		1496	my $path = path $pl;
		1497	my $guard = cf::lock_acquire "user_save:$path";
		1498
		1499	return if $pl->{deny_save};
		1500
		1501	aio_mkdir playerdir $pl, 0770;
		1502	$pl->{last_save} = $cf::RUNTIME;
		1503
		1504	cf::get_slot 0.01;
		1505
		1506	$pl->save_pl ($path);
		1507	cf::cede_to_tick;
		1508	}
		1509
		1510	sub new($) {
		1511	my ($login) = @_;
		1512
		1513	my $self = create;
		1514
		1515	$self->ob->name ($login);
		1516	$self->{deny_save} = 1;
		1517
		1518	$cf::PLAYER{$login} = $self;
		1519
		1520	$self
		1521	}
		1522
		1523	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1524
		1525	=cut
		1526
		1527	sub send_msg {
		1528	my $ns = shift->ns
		1529	or return;
		1530	$ns->send_msg (@_);
		1531	}
		1532
		1533	=item $pl->quit_character
		1534
		1535	Nukes the player without looking back. If logged in, the connection will
		1536	be destroyed. May block for a long time.
		1537
		1538	=cut
		1539
		1540	sub quit_character {
		1541	my ($pl) = @_;
		1542
		1543	my $name = $pl->ob->name;
		1544
		1545	$pl->{deny_save} = 1;
		1546	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1547
		1548	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1549	$pl->deactivate;
		1550	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1551	$pl->ob->check_score;
		1552	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1553	$pl->ns->destroy if $pl->ns;
		1554
		1555	my $path = playerdir $pl;
		1556	my $temp = "$path~$cf::RUNTIME~deleting~";
		1557	aio_rename $path, $temp;
		1558	delete $cf::PLAYER{$pl->ob->name};
		1559	$pl->destroy;
		1560
		1561	my $prefix = qr<^~\Q$name\E/>;
		1562
		1563	# nuke player maps
		1564	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1565
		1566	IO::AIO::aio_rmtree $temp;
		1567	}
		1568
		1569	=item $pl->kick
		1570
		1571	Kicks a player out of the game. This destroys the connection.
		1572
		1573	=cut
		1574
		1575	sub kick {
		1576	my ($pl, $kicker) = @_;
		1577
		1578	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1579	$pl->killer ("kicked");
		1580	$pl->ns->destroy;
		1581	}
		1582
		1583	=item cf::player::list_logins
		1584
		1585	Returns am arrayref of all valid playernames in the system, can take a
		1586	while and may block, so not sync_job-capable, ever.
		1587
		1588	=cut
		1589
		1590	sub list_logins {
		1591	my $dirs = aio_readdir $PLAYERDIR
		1592	or return [];
		1593
		1594	my @logins;
		1595
		1596	for my $login (@$dirs) {
		1597	my $path = path $login;
		1598
		1599	# a .pst is a dead give-away for a valid player
		1600	# if no pst file found, open and chekc for blocked users
		1601	if (aio_stat "$path.pst") {
		1602	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1603	aio_read $fh, 0, 512, my $buf, 0 or next;
		1604	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1605	}
		1606
		1607	utf8::decode $login;
		1608	push @logins, $login;
		1609	}
		1610
		1611	\@logins
		1612	}
		1613
		1614	=item $player->maps
		1615
		1616	Returns an arrayref of map paths that are private for this
		1617	player. May block.
		1618
		1619	=cut
		1620
		1621	sub maps($) {
		1622	my ($pl) = @_;
		1623
		1624	$pl = ref $pl ? $pl->ob->name : $pl;
		1625
		1626	my $files = aio_readdir playerdir $pl
		1627	or return;
		1628
		1629	my @paths;
		1630
		1631	for (@$files) {
		1632	utf8::decode $_;
		1633	next if /\.(?:pl|pst)$/;
		1634	next unless /^$PATH_SEP/o;
		1635
		1636	push @paths, cf::map::normalise "~$pl/$_";
		1637	}
		1638
		1639	\@paths
		1640	}
		1641
		1642	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1643
		1644	Expand deliantra pod fragments into protocol xml.
		1645
		1646	=item $player->ext_reply ($msgid, @msg)
		1647
		1648	Sends an ext reply to the player.
		1649
		1650	=cut
		1651
		1652	sub ext_reply($$@) {
		1653	my ($self, $id, @msg) = @_;
		1654
		1655	$self->ns->ext_reply ($id, @msg)
		1656	}
		1657
		1658	=item $player->ext_msg ($type, @msg)
		1659
		1660	Sends an ext event to the client.
		1661
		1662	=cut
		1663
		1664	sub ext_msg($$@) {
		1665	my ($self, $type, @msg) = @_;
		1666
		1667	$self->ns->ext_msg ($type, @msg);
		1668	}
		1669
		1670	=head3 cf::region
		1671
		1672	=over 4
		1673
		1674	=cut
		1675
		1676	package cf::region;
		1677
		1678	=item cf::region::find_by_path $path
		1679
		1680	Tries to decuce the likely region for a map knowing only its path.
		1681
		1682	=cut
		1683
		1684	sub find_by_path($) {
977	my ($path) = @_;	1685	my ($path) = @_;
978		1686
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1687	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1688
985	warn "loading '$path' into '$pkg'\n";	1689	for my $region (list) {
986		1690	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1691	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1692	if $region->specificity > $specificity;
989		1693	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1694	}
1019		1695
1020	# remove commands	1696	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1697	}
1126		1698
1127	=back	1699	=back
1128
1129		1700
1130	=head3 cf::map	1701	=head3 cf::map
1131		1702
1132	=over 4	1703	=over 4
1133		1704
…		…
1136	package cf::map;	1707	package cf::map;
1137		1708
1138	use Fcntl;	1709	use Fcntl;
1139	use Coro::AIO;	1710	use Coro::AIO;
1140		1711
		1712	use overload
		1713	'""' => \&as_string,
		1714	fallback => 1;
		1715
1141	our $MAX_RESET = 7200;	1716	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1717	our $DEFAULT_RESET = 3000;
1143		1718
1144	sub generate_random_map {	1719	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1720	my ($self, $rmp) = @_;
		1721
		1722	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1146		1723
1147	# mit "rum" bekleckern, nicht	1724	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1725	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1726	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1727	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1728	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1729	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1730	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1731	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1732	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1733	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1734	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1735	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1736	(cf::region::find $rmp->{region}), $rmp->{custom}
		1737	)
1161	}	1738	}
1162		1739
1163	# and all this just because we cannot iterate over	1740	=item cf::map->register ($regex, $prio)
1164	# all maps in C++...
1165	sub change_all_map_light {
1166	my ($change) = @_;
1167		1741
1168	$_->change_map_light ($change)	1742	Register a handler for the map path matching the given regex at the
1169	for grep $_->outdoor, values %cf::MAP;	1743	givne priority (higher is better, built-in handlers have priority 0, the
1170	}	1744	default).
1171		1745
1172	sub try_load_header($) {	1746	=cut
		1747
		1748	sub register {
		1749	my (undef, $regex, $prio) = @_;
		1750	my $pkg = caller;
		1751
		1752	no strict;
		1753	push @{"$pkg\::ISA"}, __PACKAGE__;
		1754
		1755	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1756	}
		1757
		1758	# also paths starting with '/'
		1759	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1760
		1761	sub thawer_merge {
		1762	my ($self, $merge) = @_;
		1763
		1764	# we have to keep some variables in memory intact
		1765	local $self->{path};
		1766	local $self->{load_path};
		1767
		1768	$self->SUPER::thawer_merge ($merge);
		1769	}
		1770
		1771	sub normalise {
1173	my ($path) = @_;	1772	my ($path, $base) = @_;
		1773
		1774	$path = "$path"; # make sure its a string
		1775
		1776	$path =~ s/\.map$//;
		1777
		1778	# map plan:
		1779	#
		1780	# /! non-realised random map exit (special hack!)
		1781	# {... are special paths that are not being touched
		1782	# ?xxx/... are special absolute paths
		1783	# ?random/... random maps
		1784	# /... normal maps
		1785	# ~user/... per-player map of a specific user
		1786
		1787	$path =~ s/$PATH_SEP/\//go;
		1788
		1789	# treat it as relative path if it starts with
		1790	# something that looks reasonable
		1791	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1792	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1793
		1794	$base =~ s{[^/]+/?$}{};
		1795	$path = "$base/$path";
		1796	}
		1797
		1798	for ($path) {
		1799	redo if s{//}{/};
		1800	redo if s{/\.?/}{/};
		1801	redo if s{/[^/]+/\.\./}{/};
		1802	}
		1803
		1804	$path
		1805	}
		1806
		1807	sub new_from_path {
		1808	my (undef, $path, $base) = @_;
		1809
		1810	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1811
		1812	$path = normalise $path, $base;
		1813
		1814	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1815	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1816	my $self = bless cf::map::new, $pkg;
		1817	$self->{path} = $path; $self->path ($path);
		1818	$self->init; # pass $1 etc.
		1819	return $self;
		1820	}
		1821	}
		1822
		1823	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1824	()
		1825	}
		1826
		1827	sub init {
		1828	my ($self) = @_;
		1829
		1830	$self
		1831	}
		1832
		1833	sub as_string {
		1834	my ($self) = @_;
		1835
		1836	"$self->{path}"
		1837	}
		1838
		1839	# the displayed name, this is a one way mapping
		1840	sub visible_name {
		1841	&as_string
		1842	}
		1843
		1844	# the original (read-only) location
		1845	sub load_path {
		1846	my ($self) = @_;
		1847
		1848	"$MAPDIR/$self->{path}.map"
		1849	}
		1850
		1851	# the temporary/swap location
		1852	sub save_path {
		1853	my ($self) = @_;
		1854
		1855	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1856	"$TMPDIR/$path.map"
		1857	}
		1858
		1859	# the unique path, undef == no special unique path
		1860	sub uniq_path {
		1861	my ($self) = @_;
		1862
		1863	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1864	"$UNIQUEDIR/$path"
		1865	}
		1866
		1867	sub decay_objects {
		1868	my ($self) = @_;
		1869
		1870	return if $self->{deny_reset};
		1871
		1872	$self->do_decay_objects;
		1873	}
		1874
		1875	sub unlink_save {
		1876	my ($self) = @_;
		1877
		1878	utf8::encode (my $save = $self->save_path);
		1879	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1880	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1881	}
		1882
		1883	sub load_header_from($) {
		1884	my ($self, $path) = @_;
1174		1885
1175	utf8::encode $path;	1886	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1887	my $f = new_from_file cf::object::thawer $path
1177	or return;	1888	or return;
1178		1889
1179	my $map = cf::map::new	1890	$self->_load_header ($f)
1180	or return;	1891	or return;
1181		1892
1182	$map->load_header ($path)	1893	local $MAP_LOADING{$self->{path}} = $self;
		1894	$f->resolve_delayed_derefs;
		1895
		1896	$self->{load_path} = $path;
		1897
		1898	1
		1899	}
		1900
		1901	sub load_header_orig {
		1902	my ($self) = @_;
		1903
		1904	$self->load_header_from ($self->load_path)
		1905	}
		1906
		1907	sub load_header_temp {
		1908	my ($self) = @_;
		1909
		1910	$self->load_header_from ($self->save_path)
		1911	}
		1912
		1913	sub prepare_temp {
		1914	my ($self) = @_;
		1915
		1916	$self->last_access ((delete $self->{last_access})
		1917	|| $cf::RUNTIME); #d#
		1918	# safety
		1919	$self->{instantiate_time} = $cf::RUNTIME
		1920	if $self->{instantiate_time} > $cf::RUNTIME;
		1921	}
		1922
		1923	sub prepare_orig {
		1924	my ($self) = @_;
		1925
		1926	$self->{load_original} = 1;
		1927	$self->{instantiate_time} = $cf::RUNTIME;
		1928	$self->last_access ($cf::RUNTIME);
		1929	$self->instantiate;
		1930	}
		1931
		1932	sub load_header {
		1933	my ($self) = @_;
		1934
		1935	if ($self->load_header_temp) {
		1936	$self->prepare_temp;
		1937	} else {
		1938	$self->load_header_orig
1183	or return;	1939	or return;
		1940	$self->prepare_orig;
		1941	}
1184		1942
1185	$map->{load_path} = $path;	1943	$self->{deny_reset} = 1
		1944	if $self->no_reset;
1186		1945
1187	$map	1946	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	1947	unless $self->default_region;
1189		1948
		1949	1
		1950	}
		1951
1190	sub find_map;	1952	sub find;
1191	sub find_map {	1953	sub find {
1192	my ($path, $origin) = @_;	1954	my ($path, $origin) = @_;
1193		1955
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1956	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1957
1199	cf::lock_wait "map_find:$key";	1958	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1200
1201	$cf::MAP{$key} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1959	my $guard2 = cf::lock_acquire "map_find:$path";
1203		1960
1204	# do it the slow way	1961	$cf::MAP{$path} || do {
1205	my $map = try_load_header $path->save_path;	1962	my $map = new_from_path cf::map $path
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1963	or return;
1219		1964
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1965	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1966
1233	if ($map->should_reset) {	1967	$map->load_header
		1968	or return;
		1969
		1970	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1971	# doing this can freeze the server in a sync job, obviously
		1972	#$cf::WAIT_FOR_TICK->wait;
		1973	undef $guard2;
		1974	undef $guard1;
1234	$map->reset;	1975	$map->reset;
1235	undef $guard;	1976	return find $path;
1236	$map = find_map $path
1237	or return;
1238	}	1977	}
1239		1978
1240	$cf::MAP{$key} = $map	1979	$cf::MAP{$path} = $map
1241	}	1980	}
1242	}	1981	}
		1982
		1983	sub pre_load { }
		1984	sub post_load { }
1243		1985
1244	sub load {	1986	sub load {
1245	my ($self) = @_;	1987	my ($self) = @_;
1246		1988
		1989	local $self->{deny_reset} = 1; # loading can take a long time
		1990
1247	my $path = $self->{path};	1991	my $path = $self->{path};
		1992
		1993	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1994	my $guard = cf::lock_acquire "map_data:$path";
1249		1995
		1996	return unless $self->valid;
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1997	return unless $self->in_memory == cf::MAP_SWAPPED;
1251		1998
1252	$self->in_memory (cf::MAP_LOADING);	1999	$self->in_memory (cf::MAP_LOADING);
1253		2000
1254	$self->alloc;	2001	$self->alloc;
1255	$self->load_objects ($self->{load_path}, 1)	2002
		2003	$self->pre_load;
		2004	cf::cede_to_tick;
		2005
		2006	my $f = new_from_file cf::object::thawer $self->{load_path};
		2007	$f->skip_block;
		2008	$self->_load_objects ($f)
1256	or return;	2009	or return;
1257		2010
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2011	$self->post_load_original
1259	if delete $self->{load_original};	2012	if delete $self->{load_original};
1260		2013
1261	if (my $uniq = $path->uniq_path) {	2014	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	2015	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	2016	unless (aio_stat $uniq) {
		2017	if (my $f = new_from_file cf::object::thawer $uniq) {
1264	$self->clear_unique_items;	2018	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	2019	$self->_load_objects ($f);
		2020	$f->resolve_delayed_derefs;
		2021	}
1266	}	2022	}
1267	}	2023	}
1268		2024
		2025	$f->resolve_delayed_derefs;
		2026
		2027	cf::cede_to_tick;
1269	# now do the right thing for maps	2028	# now do the right thing for maps
1270	$self->link_multipart_objects;	2029	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	2030	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	2031	unless $self->difficulty;
		2032	cf::cede_to_tick;
		2033
		2034	unless ($self->{deny_activate}) {
		2035	$self->decay_objects;
		2036	$self->fix_auto_apply;
		2037	$self->update_buttons;
		2038	cf::cede_to_tick;
1282	$self->activate;	2039	$self->activate;
1283	}	2040	}
1284		2041
		2042	$self->{last_save} = $cf::RUNTIME;
		2043	$self->last_access ($cf::RUNTIME);
		2044
1285	$self->in_memory (cf::MAP_IN_MEMORY);	2045	$self->in_memory (cf::MAP_ACTIVE);
1286	}	2046	}
1287		2047
1288	sub load_map_sync {	2048	$self->post_load;
		2049	}
		2050
		2051	sub customise_for {
		2052	my ($self, $ob) = @_;
		2053
		2054	return find "~" . $ob->name . "/" . $self->{path}
		2055	if $self->per_player;
		2056
		2057	# return find "?party/" . $ob->name . "/" . $self->{path}
		2058	# if $self->per_party;
		2059
		2060	$self
		2061	}
		2062
		2063	# find and load all maps in the 3x3 area around a map
		2064	sub load_neighbours {
		2065	my ($map) = @_;
		2066
		2067	my @neigh; # diagonal neighbours
		2068
		2069	for (0 .. 3) {
		2070	my $neigh = $map->tile_path ($_)
		2071	or next;
		2072	$neigh = find $neigh, $map
		2073	or next;
		2074	$neigh->load;
		2075
		2076	push @neigh,
		2077	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2078	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2079	}
		2080
		2081	for (grep defined $_->[0], @neigh) {
		2082	my ($path, $origin) = @$_;
		2083	my $neigh = find $path, $origin
		2084	or next;
		2085	$neigh->load;
		2086	}
		2087	}
		2088
		2089	sub find_sync {
1289	my ($path, $origin) = @_;	2090	my ($path, $origin) = @_;
1290		2091
1291	#warn "load_map_sync<$path, $origin>\n";#d#	2092	cf::sync_job { find $path, $origin }
		2093	}
1292		2094
1293	cf::sync_job {	2095	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	2096	my ($map) = @_;
1295	or return;	2097
1296	$map->load;	2098	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1297	$map	2099	if $Coro::current == $Coro::main;
		2100
		2101	cf::sync_job { $map->load };
		2102	}
		2103
		2104	our %MAP_PREFETCH;
		2105	our $MAP_PREFETCHER = undef;
		2106
		2107	sub find_async {
		2108	my ($path, $origin, $load) = @_;
		2109
		2110	$path = normalise $path, $origin && $origin->{path};
		2111
		2112	if (my $map = $cf::MAP{$path}) {
		2113	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2114	}
		2115
		2116	$MAP_PREFETCH{$path} |= $load;
		2117
		2118	$MAP_PREFETCHER ||= cf::async {
		2119	$Coro::current->{desc} = "map prefetcher";
		2120
		2121	while (%MAP_PREFETCH) {
		2122	while (my ($k, $v) = each %MAP_PREFETCH) {
		2123	if (my $map = find $k) {
		2124	$map->load if $v;
		2125	}
		2126
		2127	delete $MAP_PREFETCH{$k};
		2128	}
		2129	}
		2130	undef $MAP_PREFETCHER;
1298	}	2131	};
		2132	$MAP_PREFETCHER->prio (6);
		2133
		2134	()
1299	}	2135	}
1300		2136
1301	sub save {	2137	sub save {
1302	my ($self) = @_;	2138	my ($self) = @_;
1303		2139
		2140	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2141
1304	$self->{last_save} = $cf::RUNTIME;	2142	$self->{last_save} = $cf::RUNTIME;
1305		2143
1306	return unless $self->dirty;	2144	return unless $self->dirty;
1307		2145
1308	my $save = $self->{path}->save_path; utf8::encode $save;	2146	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2147	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		2148
1311	$self->{load_path} = $save;	2149	$self->{load_path} = $save;
1312		2150
1313	return if $self->{deny_save};	2151	return if $self->{deny_save};
1314		2152
		2153	local $self->{last_access} = $self->last_access;#d#
		2154
		2155	cf::async {
		2156	$Coro::current->{desc} = "map player save";
		2157	$_->contr->save for $self->players;
		2158	};
		2159
		2160	cf::get_slot 0.02;
		2161
1315	if ($uniq) {	2162	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2163	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	2164	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	2165	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	2167	}
1321	}	2168	}
1322		2169
1323	sub swap_out {	2170	sub swap_out {
1324	my ($self) = @_;	2171	my ($self) = @_;
1325		2172
1326	# save first because save cedes	2173	# save first because save cedes
1327	$self->save;	2174	$self->save;
1328		2175
		2176	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2177
1329	return if $self->players;	2178	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	2179	return if $self->in_memory != cf::MAP_ACTIVE;
1331	return if $self->{deny_save};	2180	return if $self->{deny_save};
1332		2181
		2182	$self->in_memory (cf::MAP_SWAPPED);
		2183
		2184	$self->deactivate;
		2185	$_->clear_links_to ($self) for values %cf::MAP;
1333	$self->clear;	2186	$self->clear;
1334	$self->in_memory (cf::MAP_SWAPPED);
1335	}	2187	}
1336		2188
1337	sub reset_at {	2189	sub reset_at {
1338	my ($self) = @_;	2190	my ($self) = @_;
1339		2191
1340	# TODO: safety, remove and allow resettable per-player maps	2192	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	2193	return 1e99 if $self->{deny_reset};
1343		2194
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2195	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2196	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		2197
…		…
1351	my ($self) = @_;	2202	my ($self) = @_;
1352		2203
1353	$self->reset_at <= $cf::RUNTIME	2204	$self->reset_at <= $cf::RUNTIME
1354	}	2205	}
1355		2206
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	2207	sub reset {
1378	my ($self) = @_;	2208	my ($self) = @_;
1379		2209
		2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2211
1380	return if $self->players;	2212	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		2213
1383	warn "resetting map ", $self->path;#d#	2214	warn "resetting map ", $self->path;
		2215
		2216	$self->in_memory (cf::MAP_SWAPPED);
		2217
		2218	# need to save uniques path
		2219	unless ($self->{deny_save}) {
		2220	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2221
		2222	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2223	if $uniq;
		2224	}
1384		2225
1385	delete $cf::MAP{$self->path};	2226	delete $cf::MAP{$self->path};
1386		2227
		2228	$self->deactivate;
1387	$_->clear_links_to ($self) for values %cf::MAP;	2229	$_->clear_links_to ($self) for values %cf::MAP;
		2230	$self->clear;
1388		2231
1389	$self->unlink_save;	2232	$self->unlink_save;
1390	$self->destroy;	2233	$self->destroy;
1391	}	2234	}
1392		2235
1393	my $nuke_counter = "aaaa";	2236	my $nuke_counter = "aaaa";
1394		2237
1395	sub nuke {	2238	sub nuke {
1396	my ($self) = @_;	2239	my ($self) = @_;
1397		2240
		2241	{
		2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2243
		2244	delete $cf::MAP{$self->path};
		2245
		2246	$self->unlink_save;
		2247
		2248	bless $self, "cf::map";
		2249	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	2250	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	2251	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	2252	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2253
		2254	$cf::MAP{$self->path} = $self;
		2255	}
		2256
1401	$self->reset; # polite request, might not happen	2257	$self->reset; # polite request, might not happen
1402	}	2258	}
1403		2259
1404	sub customise_for {	2260	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2261
1407	if ($map->per_player) {	2262	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2263	maps. May block.
		2264
		2265	=cut
		2266
		2267	sub tmp_maps() {
1409	}	2268	[
1410		2269	map {
1411	$map	2270	utf8::decode $_;
		2271	/\.map$/
		2272	? normalise $_
		2273	: ()
		2274	} @{ aio_readdir $TMPDIR or [] }
		2275	]
1412	}	2276	}
1413		2277
1414	sub emergency_save {	2278	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2279
1417	warn "enter emergency map save\n";	2280	Returns an arrayref with all map paths of currently instantiated and saved
		2281	random maps. May block.
1418		2282
1419	cf::sync_job {	2283	=cut
1420	warn "begin emergency map save\n";	2284
1421	$_->save for values %cf::MAP;	2285	sub random_maps() {
		2286	[
		2287	map {
		2288	utf8::decode $_;
		2289	/\.map$/
		2290	? normalise "?random/$_"
		2291	: ()
		2292	} @{ aio_readdir $RANDOMDIR or [] }
		2293	]
		2294	}
		2295
		2296	=item cf::map::unique_maps
		2297
		2298	Returns an arrayref of paths of all shared maps that have
		2299	instantiated unique items. May block.
		2300
		2301	=cut
		2302
		2303	sub unique_maps() {
		2304	[
		2305	map {
		2306	utf8::decode $_;
		2307	s/\.map$//; # TODO future compatibility hack
		2308	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2309	? ()
		2310	: normalise $_
		2311	} @{ aio_readdir $UNIQUEDIR or [] }
		2312	]
		2313	}
		2314
		2315	=back
		2316
		2317	=head3 cf::object
		2318
		2319	=cut
		2320
		2321	package cf::object;
		2322
		2323	=over 4
		2324
		2325	=item $ob->inv_recursive
		2326
		2327	Returns the inventory of the object I<and> their inventories, recursively,
		2328	but I<not> the object itself.
		2329
		2330	=cut
		2331
		2332	sub inv_recursive_;
		2333	sub inv_recursive_ {
		2334	map { $_, inv_recursive_ $_->inv } @_
		2335	}
		2336
		2337	sub inv_recursive {
		2338	inv_recursive_ inv $_[0]
		2339	}
		2340
		2341	=item $ref = $ob->ref
		2342
		2343	Creates and returns a persistent reference to an object that can be stored as a string.
		2344
		2345	=item $ob = cf::object::deref ($refstring)
		2346
		2347	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2348	even if the object actually exists. May block.
		2349
		2350	=cut
		2351
		2352	sub deref {
		2353	my ($ref) = @_;
		2354
		2355	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2356	my ($uuid, $name) = ($1, $2);
		2357	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2358	or return;
		2359	$pl->ob->uuid eq $uuid
		2360	or return;
		2361
		2362	$pl->ob
		2363	} else {
		2364	warn "$ref: cannot resolve object reference\n";
		2365	undef
1422	};	2366	}
1423
1424	warn "end emergency map save\n";
1425	}	2367	}
1426		2368
1427	package cf;	2369	package cf;
1428		2370
1429	=back	2371	=back
1430
1431		2372
1432	=head3 cf::object::player	2373	=head3 cf::object::player
1433		2374
1434	=over 4	2375	=over 4
1435		2376
…		…
1438	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2379	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1439	can be C<undef>. Does the right thing when the player is currently in a	2380	can be C<undef>. Does the right thing when the player is currently in a
1440	dialogue with the given NPC character.	2381	dialogue with the given NPC character.
1441		2382
1442	=cut	2383	=cut
		2384
		2385	our $SAY_CHANNEL = {
		2386	id => "say",
		2387	title => "Map",
		2388	reply => "say ",
		2389	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2390	};
		2391
		2392	our $CHAT_CHANNEL = {
		2393	id => "chat",
		2394	title => "Chat",
		2395	reply => "chat ",
		2396	tooltip => "Player chat and shouts, global to the server.",
		2397	};
1443		2398
1444	# rough implementation of a future "reply" method that works	2399	# rough implementation of a future "reply" method that works
1445	# with dialog boxes.	2400	# with dialog boxes.
1446	#TODO: the first argument must go, split into a $npc->reply_to ( method	2401	#TODO: the first argument must go, split into a $npc->reply_to ( method
1447	sub cf::object::player::reply($$$;$) {	2402	sub cf::object::player::reply($$$;$) {
…		…
1449		2404
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2405	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2406
1452	if ($self->{record_replies}) {	2407	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2408	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2409
1454	} else {	2410	} else {
		2411	my $pl = $self->contr;
		2412
		2413	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2414	my $dialog = $pl->{npc_dialog};
		2415	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2416
		2417	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2418	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2419	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2420	}
1457	}	2421	}
		2422	}
		2423
		2424	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2425
		2426	=cut
		2427
		2428	sub cf::object::send_msg {
		2429	my $pl = shift->contr
		2430	or return;
		2431	$pl->send_msg (@_);
1458	}	2432	}
1459		2433
1460	=item $player_object->may ("access")	2434	=item $player_object->may ("access")
1461		2435
1462	Returns wether the given player is authorized to access resource "access"	2436	Returns wether the given player is authorized to access resource "access"
…		…
1475		2449
1476	=item $player_object->enter_link	2450	=item $player_object->enter_link
1477		2451
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2452	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2453
1480	The player should be reaosnably safe there for short amounts of time. You	2454	The player should be reasonably safe there for short amounts of time (e.g.
1481	I<MUST> call C<leave_link> as soon as possible, though.	2455	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2456	though, as the palyer cannot control the character while it is on the link
		2457	map.
		2458
		2459	Will never block.
1482		2460
1483	=item $player_object->leave_link ($map, $x, $y)	2461	=item $player_object->leave_link ($map, $x, $y)
1484		2462
1485	Moves the player out of the specila link map onto the given map. If the	2463	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2464	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2465	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2466	fails, to the emergency map position.
1489		2467
1490	Might block.	2468	Might block.
1491		2469
1492	=cut	2470	=cut
		2471
		2472	sub link_map {
		2473	unless ($LINK_MAP) {
		2474	$LINK_MAP = cf::map::find "{link}"
		2475	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2476	$LINK_MAP->load;
		2477	}
		2478
		2479	$LINK_MAP
		2480	}
1493		2481
1494	sub cf::object::player::enter_link {	2482	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2483	my ($self) = @_;
1496		2484
1497	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
1498		2486
1499	return if $self->map == $LINK_MAP;	2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2488
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2490	if $self->map && $self->map->{path} ne "{link}";
1503		2491
1504	$self->enter_map ($LINK_MAP, 20, 20);	2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	2493	}
1506		2494
1507	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
		2497
		2498	return unless $self->contr->active;
1509		2499
1510	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1511		2501
1512	unless ($map) {	2502	unless ($map) {
1513	# restore original map position	2503	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2504	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2505	$map = cf::map::find $map;
1516		2506
1517	unless ($map) {	2507	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2508	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2509	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2510	or die "FATAL: cannot load emergency map\n";
1521	}	2511	}
1522	}	2512	}
1523		2513
1524	($x, $y) = (-1, -1)	2514	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1530		2520
1531	$map->load;	2521	$map->load;
		2522	$map->load_neighbours;
1532		2523
		2524	return unless $self->contr->active;
		2525	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1533	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1535	}	2530	}
1536		2531
1537	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1538	on_logout => sub {
1539	my ($pl) = @_;
1540		2533
1541	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1542	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1543	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1544	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1545	};	2538	be called at the end of this process.
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550		2539
1551	# try to abort aborted map switching on player login :)	2540	Note that $check will be called with a potentially non-loaded map, so if
1552	# should happen only on crashes	2541	it needs a loaded map it has to call C<< ->load >>.
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564		2542
1565	=item $player_object->goto_map ($path, $x, $y)
1566
1567	=cut	2543	=cut
1568		2544
		2545	our $GOTOGEN;
		2546
1569	sub cf::object::player::goto_map {	2547	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2548	my ($self, $path, $x, $y, $check, $done) = @_;
		2549
		2550	# do generation counting so two concurrent goto's will be executed in-order
		2551	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2552
1572	$self->enter_link;	2553	$self->enter_link;
1573		2554
1574	(cf::async {	2555	(async {
1575	$path = new cf::path $path;	2556	$Coro::current->{desc} = "player::goto $path $x $y";
1576		2557
1577	my $map = cf::map::find_map $path->as_string;	2558	# *tag paths override both path and x|y
		2559	if ($path =~ /^\*(.*)$/) {
		2560	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2561	my $ob = $obs[rand @obs];
		2562
		2563	# see if we actually can go there
		2564	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2565	$ob = $obs[rand @obs];
		2566	} else {
		2567	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
		2569	# else put us there anyways for now #d#
		2570
		2571	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2572	} else {
		2573	($path, $x, $y) = (undef, undef, undef);
		2574	}
		2575	}
		2576
		2577	my $map = eval {
		2578	my $map = defined $path ? cf::map::find $path : undef;
		2579
		2580	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2581	$map = $map->customise_for ($self);
1579		2582	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2583	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2584	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2585	}
1584		2586
		2587	$map
		2588	};
		2589
		2590	if ($@) {
		2591	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2592	LOG llevError | logBacktrace, Carp::longmess $@;
		2593	}
		2594
		2595	if ($gen == $self->{_goto_generation}) {
		2596	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2597	$self->leave_link ($map, $x, $y);
		2598	}
		2599
		2600	$done->() if $done;
1586	})->prio (1);	2601	})->prio (1);
1587	}	2602	}
1588		2603
1589	=item $player_object->enter_exit ($exit_object)	2604	=item $player_object->enter_exit ($exit_object)
1590		2605
…		…
1592		2607
1593	sub parse_random_map_params {	2608	sub parse_random_map_params {
1594	my ($spec) = @_;	2609	my ($spec) = @_;
1595		2610
1596	my $rmp = { # defaults	2611	my $rmp = { # defaults
1597	xsize => 10,	2612	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2613	ysize => (cf::rndm 15, 40),
		2614	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2615	#layout => string,
1599	};	2616	};
1600		2617
1601	for (split /\n/, $spec) {	2618	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2619	my ($k, $v) = split /\s+/, $_, 2;
1603		2620
…		…
1615	# that depends on the exit object	2632	# that depends on the exit object
1616		2633
1617	my $rmp = parse_random_map_params $exit->msg;	2634	my $rmp = parse_random_map_params $exit->msg;
1618		2635
1619	if ($exit->map) {	2636	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2637	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2638	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2639	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2640	$rmp->{origin_y} = $exit->y;
		2641
		2642	$exit->map->touch;
1624	}	2643	}
1625		2644
1626	$rmp->{random_seed} ||= $exit->random_seed;	2645	$rmp->{random_seed} ||= $exit->random_seed;
1627		2646
1628	my $data = cf::to_json $rmp;	2647	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1629	my $md5 = Digest::MD5::md5_hex $data;	2648	my $md5 = Digest::MD5::md5_hex $data;
		2649	my $meta = "$RANDOMDIR/$md5.meta";
1630		2650
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2651	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2652	aio_write $fh, 0, (length $data), $data, 0;
		2653	undef $fh;
		2654	aio_rename "$meta~", $meta;
1633		2655
		2656	my $slaying = "?random/$md5";
		2657
		2658	if ($exit->valid) {
1634	$exit->slaying ("?random/$md5");	2659	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2660	$exit->msg (undef);
		2661	}
1636	}	2662	}
1637	}	2663	}
1638		2664
1639	sub cf::object::player::enter_exit {	2665	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2666	my ($self, $exit) = @_;
1641		2667
1642	return unless $self->type == cf::PLAYER;	2668	return unless $self->type == cf::PLAYER;
1643		2669
1644	$self->enter_link;	2670	$self->enter_link;
1645		2671
1646	(cf::async {	2672	(async {
		2673	$Coro::current->{desc} = "enter_exit";
		2674
1647	unless (eval {	2675	unless (eval {
		2676	$self->deactivate_recursive; # just to be sure
		2677
		2678	# random map handling
		2679	{
		2680	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2681
1648	prepare_random_map $exit	2682	prepare_random_map $exit
1649	if $exit->slaying eq "/!";	2683	if $exit->slaying eq "/!";
		2684	}
1650		2685
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2686	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2687	my $x = $exit->stats->hp;
		2688	my $y = $exit->stats->sp;
1653		2689
		2690	$self->goto ($map, $x, $y);
		2691
		2692	# if exit is damned, update players death & WoR home-position
		2693	$self->contr->savebed ($map, $x, $y)
		2694	if $exit->flag (cf::FLAG_DAMNED);
		2695
1654	1;	2696	1
1655	}) {	2697	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2698	$self->message ("Something went wrong deep within the deliantra server. "
1657	. "I'll try to bring you back to the map you were before. "	2699	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2700	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2701	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2702
1661	warn "ERROR in enter_exit: $@";	2703	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2704	$self->leave_link;
1663	}	2705	}
1664	})->prio (1);	2706	})->prio (1);
…		…
1677		2719
1678	sub cf::client::send_drawinfo {	2720	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2721	my ($self, $text, $flags) = @_;
1680		2722
1681	utf8::encode $text;	2723	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2724	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2725	}
1684		2726
		2727	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2728
		2729	Send a drawinfo or msg packet to the client, formatting the msg for the
		2730	client if neccessary. C<$type> should be a string identifying the type of
		2731	the message, with C<log> being the default. If C<$color> is negative, suppress
		2732	the message unless the client supports the msg packet.
		2733
		2734	=cut
		2735
		2736	# non-persistent channels (usually the info channel)
		2737	our %CHANNEL = (
		2738	"c/identify" => {
		2739	id => "infobox",
		2740	title => "Identify",
		2741	reply => undef,
		2742	tooltip => "Items recently identified",
		2743	},
		2744	"c/examine" => {
		2745	id => "infobox",
		2746	title => "Examine",
		2747	reply => undef,
		2748	tooltip => "Signs and other items you examined",
		2749	},
		2750	"c/book" => {
		2751	id => "infobox",
		2752	title => "Book",
		2753	reply => undef,
		2754	tooltip => "The contents of a note or book",
		2755	},
		2756	"c/lookat" => {
		2757	id => "infobox",
		2758	title => "Look",
		2759	reply => undef,
		2760	tooltip => "What you saw there",
		2761	},
		2762	"c/who" => {
		2763	id => "infobox",
		2764	title => "Players",
		2765	reply => undef,
		2766	tooltip => "Shows players who are currently online",
		2767	},
		2768	"c/body" => {
		2769	id => "infobox",
		2770	title => "Body Parts",
		2771	reply => undef,
		2772	tooltip => "Shows which body parts you posess and are available",
		2773	},
		2774	"c/statistics" => {
		2775	id => "infobox",
		2776	title => "Statistics",
		2777	reply => undef,
		2778	tooltip => "Shows your primary statistics",
		2779	},
		2780	"c/skills" => {
		2781	id => "infobox",
		2782	title => "Skills",
		2783	reply => undef,
		2784	tooltip => "Shows your experience per skill and item power",
		2785	},
		2786	"c/resistances" => {
		2787	id => "infobox",
		2788	title => "Resistances",
		2789	reply => undef,
		2790	tooltip => "Shows your resistances",
		2791	},
		2792	"c/pets" => {
		2793	id => "infobox",
		2794	title => "Pets",
		2795	reply => undef,
		2796	tooltip => "Shows information abotu your pets/a specific pet",
		2797	},
		2798	"c/uptime" => {
		2799	id => "infobox",
		2800	title => "Uptime",
		2801	reply => undef,
		2802	tooltip => "How long the server has been running since last restart",
		2803	},
		2804	"c/mapinfo" => {
		2805	id => "infobox",
		2806	title => "Map Info",
		2807	reply => undef,
		2808	tooltip => "Information related to the maps",
		2809	},
		2810	"c/party" => {
		2811	id => "party",
		2812	title => "Party",
		2813	reply => "gsay ",
		2814	tooltip => "Messages and chat related to your party",
		2815	},
		2816	"c/death" => {
		2817	id => "death",
		2818	title => "Death",
		2819	reply => undef,
		2820	tooltip => "Reason for and more info about your most recent death",
		2821	},
		2822	"c/say" => $SAY_CHANNEL,
		2823	"c/chat" => $CHAT_CHANNEL,
		2824	);
		2825
		2826	sub cf::client::send_msg {
		2827	my ($self, $channel, $msg, $color, @extra) = @_;
		2828
		2829	$msg = $self->pl->expand_cfpod ($msg)
		2830	unless $color & cf::NDI_VERBATIM;
		2831
		2832	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2833
		2834	# check predefined channels, for the benefit of C
		2835	if ($CHANNEL{$channel}) {
		2836	$channel = $CHANNEL{$channel};
		2837
		2838	$self->ext_msg (channel_info => $channel);
		2839	$channel = $channel->{id};
		2840
		2841	} elsif (ref $channel) {
		2842	# send meta info to client, if not yet sent
		2843	unless (exists $self->{channel}{$channel->{id}}) {
		2844	$self->{channel}{$channel->{id}} = $channel;
		2845	$self->ext_msg (channel_info => $channel);
		2846	}
		2847
		2848	$channel = $channel->{id};
		2849	}
		2850
		2851	return unless @extra || length $msg;
		2852
		2853	# default colour, mask it out
		2854	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2855	if $color & cf::NDI_DEF;
		2856
		2857	my $pkt = "msg "
		2858	. $self->{json_coder}->encode (
		2859	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2860	);
		2861
		2862	# try lzf for large packets
		2863	$pkt = "lzf " . Compress::LZF::compress $pkt
		2864	if 1024 <= length $pkt and $self->{can_lzf};
		2865
		2866	# split very large packets
		2867	if (8192 < length $pkt and $self->{can_lzf}) {
		2868	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2869	$pkt = "frag";
		2870	}
		2871
		2872	$self->send_packet ($pkt);
		2873	}
		2874
		2875	=item $client->ext_msg ($type, @msg)
		2876
		2877	Sends an ext event to the client.
		2878
		2879	=cut
		2880
		2881	sub cf::client::ext_msg($$@) {
		2882	my ($self, $type, @msg) = @_;
		2883
		2884	if ($self->extcmd == 2) {
		2885	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2886	} elsif ($self->extcmd == 1) { # TODO: remove
		2887	push @msg, msgtype => "event_$type";
		2888	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2889	}
		2890	}
		2891
		2892	=item $client->ext_reply ($msgid, @msg)
		2893
		2894	Sends an ext reply to the client.
		2895
		2896	=cut
		2897
		2898	sub cf::client::ext_reply($$@) {
		2899	my ($self, $id, @msg) = @_;
		2900
		2901	if ($self->extcmd == 2) {
		2902	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2903	} elsif ($self->extcmd == 1) {
		2904	#TODO: version 1, remove
		2905	unshift @msg, msgtype => "reply", msgid => $id;
		2906	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2907	}
		2908	}
1685		2909
1686	=item $success = $client->query ($flags, "text", \&cb)	2910	=item $success = $client->query ($flags, "text", \&cb)
1687		2911
1688	Queues a query to the client, calling the given callback with	2912	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2913	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2914	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2915
1692	Queries can fail, so check the return code. Or don't, as queries will become	2916	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2917	become reliable at some point in the future.
1694		2918
1695	=cut	2919	=cut
1696		2920
1697	sub cf::client::query {	2921	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2922	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2930	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2931	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2932
1709	$self->send_packet ($self->{query_queue}[0][0])	2933	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2934	if @{ $self->{query_queue} } == 1;
		2935
		2936	1
1711	}	2937	}
1712		2938
1713	cf::client->attach (	2939	cf::client->attach (
		2940	on_connect => sub {
		2941	my ($ns) = @_;
		2942
		2943	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2944	},
1714	on_reply => sub {	2945	on_reply => sub {
1715	my ($ns, $msg) = @_;	2946	my ($ns, $msg) = @_;
1716		2947
1717	# this weird shuffling is so that direct followup queries	2948	# this weird shuffling is so that direct followup queries
1718	# get handled first	2949	# get handled first
1719	my $queue = delete $ns->{query_queue}	2950	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2951	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2952
1722	(shift @$queue)->[1]->($msg);	2953	(shift @$queue)->[1]->($msg);
		2954	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2955
1724	push @{ $ns->{query_queue} }, @$queue;	2956	push @{ $ns->{query_queue} }, @$queue;
1725		2957
1726	if (@{ $ns->{query_queue} } == @$queue) {	2958	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2959	if (@$queue) {
…		…
1729	} else {	2961	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2962	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2963	}
1732	}	2964	}
1733	},	2965	},
		2966	on_exticmd => sub {
		2967	my ($ns, $buf) = @_;
		2968
		2969	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2970
		2971	if (ref $msg) {
		2972	my ($type, $reply, @payload) =
		2973	"ARRAY" eq ref $msg
		2974	? @$msg
		2975	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2976
		2977	my @reply;
		2978
		2979	if (my $cb = $EXTICMD{$type}) {
		2980	@reply = $cb->($ns, @payload);
		2981	}
		2982
		2983	$ns->ext_reply ($reply, @reply)
		2984	if $reply;
		2985
		2986	} else {
		2987	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2988	}
		2989
		2990	cf::override;
		2991	},
1734	);	2992	);
1735		2993
1736	=item $client->coro (\&cb)	2994	=item $client->async (\&cb)
1737		2995
1738	Create a new coroutine, running the specified callback. The coroutine will	2996	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2997	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2998	or loss of connection).
1741		2999
1742	=cut	3000	=cut
1743		3001
1744	sub cf::client::coro {	3002	sub cf::client::async {
1745	my ($self, $cb) = @_;	3003	my ($self, $cb) = @_;
1746		3004
1747	my $coro = &cf::async ($cb);	3005	my $coro = &Coro::async ($cb);
1748		3006
1749	$coro->on_destroy (sub {	3007	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	3008	delete $self->{_coro}{$coro+0};
1751	});	3009	});
1752		3010
…		…
1779	our $safe = new Safe "safe";	3037	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	3038	our $safe_hole = new Safe::Hole;
1781		3039
1782	$SIG{FPE} = 'IGNORE';	3040	$SIG{FPE} = 'IGNORE';
1783		3041
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3042	$safe->permit_only (Opcode::opset qw(
		3043	:base_core :base_mem :base_orig :base_math
		3044	grepstart grepwhile mapstart mapwhile
		3045	sort time
		3046	));
1785		3047
1786	# here we export the classes and methods available to script code	3048	# here we export the classes and methods available to script code
1787		3049
1788	=pod	3050	=pod
1789		3051
1790	The following fucntions and emthods are available within a safe environment:	3052	The following functions and methods are available within a safe environment:
1791		3053
1792	cf::object contr pay_amount pay_player map	3054	cf::object
		3055	contr pay_amount pay_player map x y force_find force_add destroy
		3056	insert remove name archname title slaying race decrease split
		3057
1793	cf::object::player player	3058	cf::object::player
1794	cf::player peaceful	3059	player
1795	cf::map trigger	3060
		3061	cf::player
		3062	peaceful
		3063
		3064	cf::map
		3065	trigger
1796		3066
1797	=cut	3067	=cut
1798		3068
1799	for (	3069	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	3070	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3071	insert remove inv nrof name archname title slaying race
		3072	decrease split destroy change_exp)],
1801	["cf::object::player" => qw(player)],	3073	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	3074	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	3075	["cf::map" => qw(trigger)],
1804	) {	3076	) {
1805	no strict 'refs';	3077	no strict 'refs';
…		…
1876	=back	3148	=back
1877		3149
1878	=cut	3150	=cut
1879		3151
1880	#############################################################################	3152	#############################################################################
		3153	# the server's init and main functions
1881		3154
1882	=head2 EXTENSION DATABASE SUPPORT	3155	sub load_facedata($) {
		3156	my ($path) = @_;
1883		3157
1884	Crossfire maintains a very simple database for extension use. It can	3158	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3159	# for this (global event?)
1886	excludes objects.	3160	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3161
1888	The parameter C<$family> should best start with the name of the extension	3162	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3163
1891	=over 4	3164	warn "loading facedata from $path\n";
1892		3165
1893	=item $hashref = cf::db_get $family	3166	my $facedata;
		3167	0 < aio_load $path, $facedata
		3168	or die "$path: $!";
1894		3169
1895	Return a hashref for use by the extension C<$family>, which can be	3170	$facedata = Coro::Storable::thaw $facedata;
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898		3171
1899	=item $value = cf::db_get $family => $key	3172	$facedata->{version} == 2
		3173	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		3174
1901	Returns a single value from the database	3175	# patch in the exptable
1902		3176	$facedata->{resource}{"res/exp_table"} = {
1903	=item cf::db_put $family => $hashref	3177	type => FT_RSRC,
1904		3178	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3179	};
		3180	cf::cede_to_tick;
1954		3181
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3182	{
		3183	my $faces = $facedata->{faceinfo};
1959		3184
1960	sub db_get($;$) {	3185	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3186	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		3187
1966	sub db_put($$;$) {	3188	cf::face::set_visibility $idx, $info->{visibility};
1967	if (@_ >= 3) {	3189	cf::face::set_magicmap $idx, $info->{magicmap};
1968	$DB->{$_[0]}{$_[1]} = $_[2];	3190	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1969	} else {	3191	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		3192
1975	cf::global->attach (	3193	cf::cede_to_tick;
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3194	}
1980	);
1981	}
1982		3195
1983	#############################################################################	3196	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	3197	next unless $info->{smooth};
1985		3198
1986	sub cfg_load {	3199	my $idx = cf::face::find $face
		3200	or next;
		3201
		3202	if (my $smooth = cf::face::find $info->{smooth}) {
		3203	cf::face::set_smooth $idx, $smooth;
		3204	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3205	} else {
		3206	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3207	}
		3208
		3209	cf::cede_to_tick;
		3210	}
		3211	}
		3212
		3213	{
		3214	my $anims = $facedata->{animinfo};
		3215
		3216	while (my ($anim, $info) = each %$anims) {
		3217	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3218	cf::cede_to_tick;
		3219	}
		3220
		3221	cf::anim::invalidate_all; # d'oh
		3222	}
		3223
		3224	{
		3225	# TODO: for gcfclient pleasure, we should give resources
		3226	# that gcfclient doesn't grok a >10000 face index.
		3227	my $res = $facedata->{resource};
		3228
		3229	while (my ($name, $info) = each %$res) {
		3230	if (defined $info->{type}) {
		3231	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3232	my $data;
		3233
		3234	if ($info->{type} & 1) {
		3235	# prepend meta info
		3236
		3237	my $meta = $enc->encode ({
		3238	name => $name,
		3239	%{ $info->{meta} || {} },
		3240	});
		3241
		3242	$data = pack "(w/a*)*", $meta, $info->{data};
		3243	} else {
		3244	$data = $info->{data};
		3245	}
		3246
		3247	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3248	cf::face::set_type $idx, $info->{type};
		3249	} else {
		3250	$RESOURCE{$name} = $info;
		3251	}
		3252
		3253	cf::cede_to_tick;
		3254	}
		3255	}
		3256
		3257	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3258
		3259	1
		3260	}
		3261
		3262	cf::global->attach (on_resource_update => sub {
		3263	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3264	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3265
		3266	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3267	my $sound = $soundconf->{compat}[$_]
		3268	or next;
		3269
		3270	my $face = cf::face::find "sound/$sound->[1]";
		3271	cf::sound::set $sound->[0] => $face;
		3272	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3273	}
		3274
		3275	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3276	my $face = cf::face::find "sound/$v";
		3277	cf::sound::set $k => $face;
		3278	}
		3279	}
		3280	});
		3281
		3282	register_exticmd fx_want => sub {
		3283	my ($ns, $want) = @_;
		3284
		3285	while (my ($k, $v) = each %$want) {
		3286	$ns->fx_want ($k, $v);
		3287	}
		3288	};
		3289
		3290	sub load_resource_file($) {
		3291	my $guard = lock_acquire "load_resource_file";
		3292
		3293	my $status = load_resource_file_ $_[0];
		3294	get_slot 0.1, 100;
		3295	cf::arch::commit_load;
		3296
		3297	$status
		3298	}
		3299
		3300	sub reload_regions {
		3301	# HACK to clear player env face cache, we need some signal framework
		3302	# for this (global event?)
		3303	%ext::player_env::MUSIC_FACE_CACHE = ();
		3304
		3305	load_resource_file "$MAPDIR/regions"
		3306	or die "unable to load regions file\n";
		3307
		3308	for (cf::region::list) {
		3309	$_->{match} = qr/$_->{match}/
		3310	if exists $_->{match};
		3311	}
		3312	}
		3313
		3314	sub reload_facedata {
		3315	load_facedata "$DATADIR/facedata"
		3316	or die "unable to load facedata\n";
		3317	}
		3318
		3319	sub reload_archetypes {
		3320	load_resource_file "$DATADIR/archetypes"
		3321	or die "unable to load archetypes\n";
		3322	}
		3323
		3324	sub reload_treasures {
		3325	load_resource_file "$DATADIR/treasures"
		3326	or die "unable to load treasurelists\n";
		3327	}
		3328
		3329	sub reload_resources {
		3330	warn "reloading resource files...\n";
		3331
		3332	reload_facedata;
		3333	reload_archetypes;
		3334	reload_regions;
		3335	reload_treasures;
		3336
		3337	warn "finished reloading resource files\n";
		3338	}
		3339
		3340	sub reload_config {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3341	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	3342	or return;
1989		3343
1990	local $/;	3344	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	3345	*CFG = YAML::Load <$fh>;
1992		3346
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3347	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3348
		3349	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3350	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1994		3351
1995	if (exists $CFG{mlockall}) {	3352	if (exists $CFG{mlockall}) {
1996	eval {	3353	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3354	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3355	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3356	};
2000	warn $@ if $@;	3357	warn $@ if $@;
2001	}	3358	}
2002	}	3359	}
2003		3360
		3361	sub pidfile() {
		3362	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3363	or die "$PIDFILE: $!";
		3364	flock $fh, &Fcntl::LOCK_EX
		3365	or die "$PIDFILE: flock: $!";
		3366	$fh
		3367	}
		3368
		3369	# make sure only one server instance is running at any one time
		3370	sub atomic {
		3371	my $fh = pidfile;
		3372
		3373	my $pid = <$fh>;
		3374	kill 9, $pid if $pid > 0;
		3375
		3376	seek $fh, 0, 0;
		3377	print $fh $$;
		3378	}
		3379
2004	sub main {	3380	sub main {
		3381	cf::init_globals; # initialise logging
		3382
		3383	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3384	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3385	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3386	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3387
		3388	cf::init_experience;
		3389	cf::init_anim;
		3390	cf::init_attackmess;
		3391	cf::init_dynamic;
		3392
		3393	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3394
2005	# we must not ever block the main coroutine	3395	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3396	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3397	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	3398	(async {
2009	Event::one_event;	3399	$Coro::current->{desc} = "IDLE BUG HANDLER";
2010	})->();	3400	EV::loop EV::LOOP_ONESHOT;
		3401	})->prio (Coro::PRIO_MAX);
2011	};	3402	};
2012		3403
2013	cfg_load;	3404	evthread_start IO::AIO::poll_fileno;
2014	db_load;	3405
		3406	cf::sync_job {
		3407	reload_resources;
		3408	reload_config;
		3409	db_init;
		3410
		3411	cf::load_settings;
		3412	cf::load_materials;
		3413	cf::init_uuid;
		3414	cf::init_signals;
		3415	cf::init_commands;
		3416	cf::init_skills;
		3417
		3418	cf::init_beforeplay;
		3419
		3420	atomic;
		3421
2015	load_extensions;	3422	load_extensions;
		3423
		3424	utime time, time, $RUNTIMEFILE;
		3425
		3426	# no (long-running) fork's whatsoever before this point(!)
		3427	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3428
		3429	(pop @POST_INIT)->(0) while @POST_INIT;
		3430	};
		3431
2016	Event::loop;	3432	EV::loop;
2017	}	3433	}
2018		3434
2019	#############################################################################	3435	#############################################################################
2020	# initialisation	3436	# initialisation and cleanup
2021		3437
		3438	# install some emergency cleanup handlers
		3439	BEGIN {
		3440	our %SIGWATCHER = ();
		3441	for my $signal (qw(INT HUP TERM)) {
		3442	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3443	cf::cleanup "SIG$signal";
		3444	};
		3445	}
		3446	}
		3447
		3448	sub write_runtime_sync {
		3449	# first touch the runtime file to show we are still running:
		3450	# the fsync below can take a very very long time.
		3451
		3452	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3453
		3454	my $guard = cf::lock_acquire "write_runtime";
		3455
		3456	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3457	or return;
		3458
		3459	my $value = $cf::RUNTIME + 90 + 10;
		3460	# 10 is the runtime save interval, for a monotonic clock
		3461	# 60 allows for the watchdog to kill the server.
		3462
		3463	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3464	and return;
		3465
		3466	# always fsync - this file is important
		3467	aio_fsync $fh
		3468	and return;
		3469
		3470	# touch it again to show we are up-to-date
		3471	aio_utime $fh, undef, undef;
		3472
		3473	close $fh
		3474	or return;
		3475
		3476	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3477	and return;
		3478
		3479	warn "runtime file written.\n";
		3480
		3481	1
		3482	}
		3483
		3484	our $uuid_lock;
		3485	our $uuid_skip;
		3486
		3487	sub write_uuid_sync($) {
		3488	$uuid_skip ||= $_[0];
		3489
		3490	return if $uuid_lock;
		3491	local $uuid_lock = 1;
		3492
		3493	my $uuid = "$LOCALDIR/uuid";
		3494
		3495	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3496	or return;
		3497
		3498	my $value = uuid_seq uuid_cur;
		3499
		3500	unless ($value) {
		3501	warn "cowardly refusing to write zero uuid value!\n";
		3502	return;
		3503	}
		3504
		3505	my $value = uuid_str $value + $uuid_skip;
		3506	$uuid_skip = 0;
		3507
		3508	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3509	and return;
		3510
		3511	# always fsync - this file is important
		3512	aio_fsync $fh
		3513	and return;
		3514
		3515	close $fh
		3516	or return;
		3517
		3518	aio_rename "$uuid~", $uuid
		3519	and return;
		3520
		3521	warn "uuid file written ($value).\n";
		3522
		3523	1
		3524
		3525	}
		3526
		3527	sub write_uuid($$) {
		3528	my ($skip, $sync) = @_;
		3529
		3530	$sync ? write_uuid_sync $skip
		3531	: async { write_uuid_sync $skip };
		3532	}
		3533
		3534	sub emergency_save() {
		3535	my $freeze_guard = cf::freeze_mainloop;
		3536
		3537	warn "emergency_perl_save: enter\n";
		3538
		3539	cf::sync_job {
		3540	# this is a trade-off: we want to be very quick here, so
		3541	# save all maps without fsync, and later call a global sync
		3542	# (which in turn might be very very slow)
		3543	local $USE_FSYNC = 0;
		3544
		3545	# use a peculiar iteration method to avoid tripping on perl
		3546	# refcount bugs in for. also avoids problems with players
		3547	# and maps saved/destroyed asynchronously.
		3548	warn "emergency_perl_save: begin player save\n";
		3549	for my $login (keys %cf::PLAYER) {
		3550	my $pl = $cf::PLAYER{$login} or next;
		3551	$pl->valid or next;
		3552	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3553	$pl->save;
		3554	}
		3555	warn "emergency_perl_save: end player save\n";
		3556
		3557	warn "emergency_perl_save: begin map save\n";
		3558	for my $path (keys %cf::MAP) {
		3559	my $map = $cf::MAP{$path} or next;
		3560	$map->valid or next;
		3561	$map->save;
		3562	}
		3563	warn "emergency_perl_save: end map save\n";
		3564
		3565	warn "emergency_perl_save: begin database checkpoint\n";
		3566	BDB::db_env_txn_checkpoint $DB_ENV;
		3567	warn "emergency_perl_save: end database checkpoint\n";
		3568
		3569	warn "emergency_perl_save: begin write uuid\n";
		3570	write_uuid_sync 1;
		3571	warn "emergency_perl_save: end write uuid\n";
		3572	};
		3573
		3574	warn "emergency_perl_save: starting sync()\n";
		3575	IO::AIO::aio_sync sub {
		3576	warn "emergency_perl_save: finished sync()\n";
		3577	};
		3578
		3579	warn "emergency_perl_save: leave\n";
		3580	}
		3581
		3582	sub post_cleanup {
		3583	my ($make_core) = @_;
		3584
		3585	warn Carp::longmess "post_cleanup backtrace"
		3586	if $make_core;
		3587
		3588	my $fh = pidfile;
		3589	unlink $PIDFILE if <$fh> == $$;
		3590	}
		3591
		3592	# a safer delete_package, copied from Symbol
		3593	sub clear_package($) {
		3594	my $pkg = shift;
		3595
		3596	# expand to full symbol table name if needed
		3597	unless ($pkg =~ /^main::.*::$/) {
		3598	$pkg = "main$pkg" if $pkg =~ /^::/;
		3599	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3600	$pkg .= '::' unless $pkg =~ /::$/;
		3601	}
		3602
		3603	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3604	my $stem_symtab = *{$stem}{HASH};
		3605
		3606	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3607	or return;
		3608
		3609	# clear all symbols
		3610	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3611	for my $name (keys %$leaf_symtab) {
		3612	_gv_clear *{"$pkg$name"};
		3613	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3614	}
		3615	warn "cleared package $pkg\n";#d#
		3616	}
		3617
2022	sub reload() {	3618	sub do_reload_perl() {
2023	# can/must only be called in main	3619	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3620	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3621	warn "can only reload from main coroutine";
2026	return;	3622	return;
2027	}	3623	}
2028		3624
		3625	return if $RELOAD++;
		3626
		3627	my $t1 = EV::time;
		3628
		3629	while ($RELOAD) {
2029	warn "reloading...";	3630	warn "reloading...";
2030		3631
2031	local $FREEZE = 1;	3632	warn "entering sync_job";
		3633
		3634	cf::sync_job {
		3635	cf::write_runtime_sync; # external watchdog should not bark
2032	cf::emergency_save;	3636	cf::emergency_save;
		3637	cf::write_runtime_sync; # external watchdog should not bark
2033		3638
2034	eval {	3639	warn "syncing database to disk";
		3640	BDB::db_env_txn_checkpoint $DB_ENV;
		3641
2035	# if anything goes wrong in here, we should simply crash as we already saved	3642	# if anything goes wrong in here, we should simply crash as we already saved
2036		3643
2037	# cancel all watchers	3644	warn "flushing outstanding aio requests";
2038	for (Event::all_watchers) {	3645	while (IO::AIO::nreqs || BDB::nreqs) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3646	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2040	}
2041
2042	# cancel all extension coros
2043	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();
2045
2046	# unload all extensions
2047	for (@exts) {
2048	warn "unloading <$_>";
2049	unload_extension $_;
2050	}
2051
2052	# unload all modules loaded from $LIBDIR
2053	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055
2056	warn "removing <$k>";
2057	delete $INC{$k};
2058
2059	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;
2061
2062	if (my $cb = $k->can ("unload_module")) {
2063	$cb->();
2064	}	3647	}
2065		3648
2066	Symbol::delete_package $k;	3649	warn "cancelling all extension coros";
		3650	$_->cancel for values %EXT_CORO;
		3651	%EXT_CORO = ();
		3652
		3653	warn "removing commands";
		3654	%COMMAND = ();
		3655
		3656	warn "removing ext/exti commands";
		3657	%EXTCMD = ();
		3658	%EXTICMD = ();
		3659
		3660	warn "unloading/nuking all extensions";
		3661	for my $pkg (@EXTS) {
		3662	warn "... unloading $pkg";
		3663
		3664	if (my $cb = $pkg->can ("unload")) {
		3665	eval {
		3666	$cb->($pkg);
		3667	1
		3668	} or warn "$pkg unloaded, but with errors: $@";
		3669	}
		3670
		3671	warn "... clearing $pkg";
		3672	clear_package $pkg;
2067	}	3673	}
2068		3674
2069	# sync database to disk	3675	warn "unloading all perl modules loaded from $LIBDIR";
2070	cf::db_sync;	3676	while (my ($k, $v) = each %INC) {
2071	IO::AIO::flush;	3677	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2072		3678
		3679	warn "... unloading $k";
		3680	delete $INC{$k};
		3681
		3682	$k =~ s/\.pm$//;
		3683	$k =~ s/\//::/g;
		3684
		3685	if (my $cb = $k->can ("unload_module")) {
		3686	$cb->();
		3687	}
		3688
		3689	clear_package $k;
		3690	}
		3691
2073	# get rid of safe::, as good as possible	3692	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3693	clear_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3694	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3695
2077	# remove register_script_function callbacks	3696	warn "unloading cf.pm \"a bit\"";
2078	# TODO
2079
2080	# unload cf.pm "a bit"
2081	delete $INC{"cf.pm"};	3697	delete $INC{"cf.pm"};
		3698	delete $INC{"cf/pod.pm"};
2082		3699
2083	# don't, removes xs symbols, too,	3700	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3701	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3702	#clear_package __PACKAGE__;
2086		3703
2087	# reload cf.pm	3704	warn "unload completed, starting to reload now";
		3705
2088	warn "reloading cf.pm";	3706	warn "reloading cf.pm";
2089	require cf;	3707	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3708	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3709
2092	# load config and database again	3710	warn "loading config and database again";
2093	cf::cfg_load;	3711	cf::reload_config;
2094	cf::db_load;
2095		3712
2096	# load extensions
2097	warn "load extensions";	3713	warn "loading extensions";
2098	cf::load_extensions;	3714	cf::load_extensions;
2099		3715
2100	# reattach attachments to objects	3716	if ($REATTACH_ON_RELOAD) {
		3717	warn "reattaching attachments to objects/players";
		3718	_global_reattach; # objects, sockets
		3719	warn "reattaching attachments to maps";
		3720	reattach $_ for values %MAP;
		3721	warn "reattaching attachments to players";
		3722	reattach $_ for values %PLAYER;
		3723	}
		3724
		3725	warn "running post_init jobs";
		3726	(pop @POST_INIT)->(1) while @POST_INIT;
		3727
		3728	warn "leaving sync_job";
		3729
		3730	1
		3731	} or do {
		3732	warn $@;
		3733	cf::cleanup "error while reloading, exiting.";
		3734	};
		3735
2101	warn "reattach";	3736	warn "reloaded";
2102	_global_reattach;	3737	--$RELOAD;
		3738	}
		3739
		3740	$t1 = EV::time - $t1;
		3741	warn "reload completed in ${t1}s\n";
		3742	};
		3743
		3744	our $RELOAD_WATCHER; # used only during reload
		3745
		3746	sub reload_perl() {
		3747	# doing reload synchronously and two reloads happen back-to-back,
		3748	# coro crashes during coro_state_free->destroy here.
		3749
		3750	$RELOAD_WATCHER ||= cf::async {
		3751	Coro::AIO::aio_wait cache_extensions;
		3752
		3753	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3754	do_reload_perl;
		3755	undef $RELOAD_WATCHER;
		3756	};
2103	};	3757	};
2104
2105	if ($@) {
2106	warn $@;
2107	warn "error while reloading, exiting.";
2108	exit 1;
2109	}
2110
2111	warn "reloaded successfully";
2112	};
2113
2114	#############################################################################
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3758	}
2156
2157	register "<global>", __PACKAGE__;
2158		3759
2159	register_command "reload" => sub {	3760	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3761	my ($who, $arg) = @_;
2161		3762
2162	if ($who->flag (FLAG_WIZ)) {	3763	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3764	$who->message ("reloading server.");
		3765	async {
		3766	$Coro::current->{desc} = "perl_reload";
		3767	reload_perl;
		3768	};
2166	}	3769	}
2167	};	3770	};
2168		3771
2169	unshift @INC, $LIBDIR;	3772	unshift @INC, $LIBDIR;
2170		3773
2171	$TICK_WATCHER = Event->timer (	3774	my $bug_warning = 0;
2172	reentrant => 0,	3775
2173	prio => 0,	3776	our @WAIT_FOR_TICK;
2174	at => $NEXT_TICK || $TICK,	3777	our @WAIT_FOR_TICK_BEGIN;
2175	data => WF_AUTOCANCEL,	3778
2176	cb => sub {	3779	sub wait_for_tick {
2177	unless ($FREEZE) {	3780	return if tick_inhibit || $Coro::current == $Coro::main;
		3781
		3782	my $signal = new Coro::Signal;
		3783	push @WAIT_FOR_TICK, $signal;
		3784	$signal->wait;
		3785	}
		3786
		3787	sub wait_for_tick_begin {
		3788	return if tick_inhibit || $Coro::current == $Coro::main;
		3789
		3790	my $signal = new Coro::Signal;
		3791	push @WAIT_FOR_TICK_BEGIN, $signal;
		3792	$signal->wait;
		3793	}
		3794
		3795	sub tick {
		3796	if ($Coro::current != $Coro::main) {
		3797	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3798	unless ++$bug_warning > 10;
		3799	return;
		3800	}
		3801
2178	cf::server_tick; # one server iteration	3802	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;
2180	}
2181		3803
2182	$NEXT_TICK += $TICK;	3804	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2183		3805	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2184	# if we are delayed by four ticks or more, skip them all	3806	Coro::async_pool {
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3807	$Coro::current->{desc} = "runtime saver";
2186
2187	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;
2189	},
2190	);
2191
2192	IO::AIO::max_poll_time $TICK * 0.2;
2193
2194	Event->io (
2195	fd => IO::AIO::poll_fileno,
2196	poll => 'r',
2197	prio => 5,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,
2204	after => 0,
2205	interval => 10,
2206	cb => sub {
2207	(Coro::unblock_sub {
2208	write_runtime	3808	write_runtime_sync
2209	or warn "ERROR: unable to write runtime file: $!";	3809	or warn "ERROR: unable to write runtime file: $!";
2210	})->();	3810	};
2211	},	3811	}
2212	);	3812
		3813	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3814	$sig->send;
		3815	}
		3816	while (my $sig = shift @WAIT_FOR_TICK) {
		3817	$sig->send;
		3818	}
		3819
		3820	$LOAD = ($NOW - $TICK_START) / $TICK;
		3821	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3822
		3823	if (0) {
		3824	if ($NEXT_TICK) {
		3825	my $jitter = $TICK_START - $NEXT_TICK;
		3826	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3827	warn "jitter $JITTER\n";#d#
		3828	}
		3829	}
		3830	}
		3831
		3832	{
		3833	# configure BDB
		3834
		3835	BDB::min_parallel 8;
		3836	BDB::max_poll_reqs $TICK * 0.1;
		3837	$AnyEvent::BDB::WATCHER->priority (1);
		3838
		3839	unless ($DB_ENV) {
		3840	$DB_ENV = BDB::db_env_create;
		3841	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3842	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3843	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3844	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3845	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3846
		3847	cf::sync_job {
		3848	eval {
		3849	BDB::db_env_open
		3850	$DB_ENV,
		3851	$BDBDIR,
		3852	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3853	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3854	0666;
		3855
		3856	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3857	};
		3858
		3859	cf::cleanup "db_env_open(db): $@" if $@;
		3860	};
		3861	}
		3862
		3863	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3864	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3865	};
		3866	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3867	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3868	};
		3869	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3870	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3871	};
		3872	}
		3873
		3874	{
		3875	# configure IO::AIO
		3876
		3877	IO::AIO::min_parallel 8;
		3878	IO::AIO::max_poll_time $TICK * 0.1;
		3879	undef $AnyEvent::AIO::WATCHER;
		3880	}
		3881
		3882	my $_log_backtrace;
		3883
		3884	sub _log_backtrace {
		3885	my ($msg, @addr) = @_;
		3886
		3887	$msg =~ s/\n//;
		3888
		3889	# limit the # of concurrent backtraces
		3890	if ($_log_backtrace < 2) {
		3891	++$_log_backtrace;
		3892	my $perl_bt = Carp::longmess $msg;
		3893	async {
		3894	$Coro::current->{desc} = "abt $msg";
		3895
		3896	my @bt = fork_call {
		3897	@addr = map { sprintf "%x", $_ } @addr;
		3898	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3899	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3900	or die "addr2line: $!";
		3901
		3902	my @funcs;
		3903	my @res = <$fh>;
		3904	chomp for @res;
		3905	while (@res) {
		3906	my ($func, $line) = splice @res, 0, 2, ();
		3907	push @funcs, "[$func] $line";
		3908	}
		3909
		3910	@funcs
		3911	};
		3912
		3913	LOG llevInfo, "[ABT] $perl_bt\n";
		3914	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3915	LOG llevInfo, "[ABT] $_\n" for @bt;
		3916	--$_log_backtrace;
		3917	};
		3918	} else {
		3919	LOG llevInfo, "[ABT] $msg\n";
		3920	LOG llevInfo, "[ABT] [suppressed]\n";
		3921	}
		3922	}
		3923
		3924	# load additional modules
		3925	use cf::pod;
2213		3926
2214	END { cf::emergency_save }	3927	END { cf::emergency_save }
2215		3928
2216	1	3929	1
2217		3930

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