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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.460 by root, Mon Dec 15 17:04:53 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		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 (Coro::PRIO_MAX); # 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 $RANDOM_MAPS = cf::localdir . "/random";	125	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	126
		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 $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
56		138
57	binmode STDOUT;	139	binmode STDOUT;
58	binmode STDERR;	140	binmode STDERR;
59		141
60	# read virtual server time, if available	142	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	143	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	144	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	145	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	146	$RUNTIME = <$fh> + 0.;
65	}	147	}
66		148
67	mkdir cf::localdir;	149	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	150	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		151
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	152	our $EMERGENCY_POSITION;
		153
		154	sub cf::map::normalise;
76		155
77	#############################################################################	156	#############################################################################
78		157
79	=head2 GLOBAL VARIABLES	158	=head2 GLOBAL VARIABLES
80		159
…		…
87	=item $cf::RUNTIME	166	=item $cf::RUNTIME
88		167
89	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
90	every server tick.	169	every server tick.
91		170
92	=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
93		174
94	The perl library directory, where extensions and cf-specific modules can	175	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		179
97	=item $cf::NOW	180	=item $cf::NOW
98		181
99	The time of the last (current) server tick.	182	The time of the last (current) server tick.
100		183
101	=item $cf::TICK	184	=item $cf::TICK
102		185
103	The interval between server ticks, in seconds.	186	The interval between server ticks, in seconds.
104		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
105	=item %cf::CFG	198	=item %cf::CFG
106		199
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	200	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	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.
109		214
110	=back	215	=back
111		216
112	=cut	217	=cut
113		218
114	BEGIN {	219	BEGIN {
115	*CORE::GLOBAL::warn = sub {	220	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	221	my $msg = join "", @_;
117	utf8::encode $msg;
118		222
119	$msg .= "\n"	223	$msg .= "\n"
120	unless $msg =~ /\n$/;	224	unless $msg =~ /\n$/;
121		225
		226	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		227
122	LOG llevError, "cfperl: $msg";	228	LOG llevError, $msg;
123	};	229	};
124	}	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#?
125		246
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	247	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	248	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	249	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	250	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		254
133	# 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
134	# within the Safe compartment.	256	# within the Safe compartment.
135	for my $pkg (qw(	257	for my $pkg (qw(
136	cf::global cf::attachable	258	cf::global cf::attachable
137	cf::object cf::object::player	259	cf::object cf::object::player
138	cf::client cf::player	260	cf::client cf::player
139	cf::arch cf::living	261	cf::arch cf::living
		262	cf::map cf::mapspace
140	cf::map cf::party cf::region	263	cf::party cf::region
141	)) {	264	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	265	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	266	}
145		267
146	$Event::DIED = sub {	268	$EV::DIED = sub {
147	warn "error in event callback: @_";	269	warn "error in event callback: @_";
148	};	270	};
149		271
150	my %ext_pkg;	272	#############################################################################
151	my @exts;
152	my @hook;
153		273
154	=head2 UTILITY FUNCTIONS	274	=head2 UTILITY FUNCTIONS
155		275
156	=over 4	276	=over 4
157		277
158	=cut	278	=item dumpval $ref
159		279
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	280	=cut
161		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
162	=item $ref = cf::from_json $json	301	=item $ref = cf::decode_json $json
163		302
164	Converts a JSON string into the corresponding perl data structure.	303	Converts a JSON string into the corresponding perl data structure.
165		304
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	305	=item $json = cf::encode_json $ref
174		306
175	Converts a perl data structure into its JSON representation.	307	Converts a perl data structure into its JSON representation.
176		308
177	=cut	309	=cut
178		310
179	sub to_json($) {	311	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	312
181	JSON::Syck::Dump $_[0]	313	sub encode_json($) { $json_coder->encode ($_[0]) }
		314	sub decode_json($) { $json_coder->decode ($_[0]) }
		315
		316	=item cf::post_init { BLOCK }
		317
		318	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		319	but I<before> the server starts ticking again.
		320
		321	The cdoeblock will have a single boolean argument to indicate whether this
		322	is a reload or not.
		323
		324	=cut
		325
		326	sub post_init(&) {
		327	push @POST_INIT, shift;
182	}	328	}
183		329
184	=item cf::lock_wait $string	330	=item cf::lock_wait $string
185		331
186	Wait until the given lock is available. See cf::lock_acquire.	332	Wait until the given lock is available. See cf::lock_acquire.
187		333
188	=item my $lock = cf::lock_acquire $string	334	=item my $lock = cf::lock_acquire $string
189		335
190	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
191	a Coro::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,
192	for example when the coroutine gets canceled), the lock is automatically	338	for example when the coroutine gets canceled), the lock is automatically
193	returned.	339	returned.
194		340
		341	Locks are *not* recursive, locking from the same coro twice results in a
		342	deadlocked coro.
		343
195	Lock names should begin with a unique identifier (for example, cf::map::find	344	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	345	uses map_find and cf::map::load uses map_load).
197		346
198	=cut	347	=item $locked = cf::lock_active $string
199		348
200	our %LOCK;	349	Return true if the lock is currently active, i.e. somebody has locked it.
		350
		351	=cut
		352
		353	our $LOCKS = new Coro::SemaphoreSet;
201		354
202	sub lock_wait($) {	355	sub lock_wait($) {
203	my ($key) = @_;	356	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	357	}
211		358
212	sub lock_acquire($) {	359	sub lock_acquire($) {
213	my ($key) = @_;	360	$LOCKS->guard ($_[0])
		361	}
214		362
215	# wait, to be sure we are not locked	363	sub lock_active($) {
216	lock_wait $key;	364	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	365	}
225		366
226	sub freeze_mainloop {	367	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	368	tick_inhibit_inc;
228		369
229	my $guard = Coro::guard { $TICK_WATCHER->start };	370	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;	371	}
231	$guard	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($$) {
		381	my ($interval, $cb) = @_;
		382
		383	my $start = rand List::Util::min 180, $interval;
		384
		385	EV::periodic $start, $interval, 0, $cb
		386	}
		387
		388	=item cf::get_slot $time[, $priority[, $name]]
		389
		390	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		391	This call blocks and returns only when you have at least C<$time> seconds
		392	of cpu time till the next tick. The slot is only valid till the next cede.
		393
		394	The optional C<$name> can be used to identify the job to run. It might be
		395	used for statistical purposes and should identify the same time-class.
		396
		397	Useful for short background jobs.
		398
		399	=cut
		400
		401	our @SLOT_QUEUE;
		402	our $SLOT_QUEUE;
		403
		404	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		405	$SLOT_QUEUE = Coro::async {
		406	$Coro::current->desc ("timeslot manager");
		407
		408	my $signal = new Coro::Signal;
		409
		410	while () {
		411	next_job:
		412	my $avail = cf::till_tick;
		413	if ($avail > 0.01) {
		414	for (0 .. $#SLOT_QUEUE) {
		415	if ($SLOT_QUEUE[$_][0] < $avail) {
		416	my $job = splice @SLOT_QUEUE, $_, 1, ();
		417	$job->[2]->send;
		418	Coro::cede;
		419	goto next_job;
		420	}
		421	}
		422	}
		423
		424	if (@SLOT_QUEUE) {
		425	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		426	push @cf::WAIT_FOR_TICK, $signal;
		427	$signal->wait;
		428	} else {
		429	Coro::schedule;
		430	}
		431	}
		432	};
		433
		434	sub get_slot($;$$) {
		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	$sig->wait;
232	}	446	}
233		447
234	=item cf::async { BLOCK }	448	=item cf::async { BLOCK }
235		449
236	Currently the same as Coro::async_pool, meaning you cannot use	450	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		455
242	BEGIN { *async = \&Coro::async_pool }	456	BEGIN { *async = \&Coro::async_pool }
243		457
244	=item cf::sync_job { BLOCK }	458	=item cf::sync_job { BLOCK }
245		459
246	The design of crossfire+ requires that the main coro ($Coro::main) is	460	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	461	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	462	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		463	acceptable.
249		464
250	If it must be done, put the blocking parts into C<sync_job>. This will run	465	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	466	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	467	server will be frozen during this time, so the block should either finish
253	fast or be very important.	468	fast or be very important.
…		…
256		471
257	sub sync_job(&) {	472	sub sync_job(&) {
258	my ($job) = @_;	473	my ($job) = @_;
259		474
260	if ($Coro::current == $Coro::main) {	475	if ($Coro::current == $Coro::main) {
		476	my $time = EV::time;
		477
261	# this is the main coro, too bad, we have to block	478	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	479	# till the operation succeeds, freezing the server :/
263		480
264	# TODO: use suspend/resume instead	481	LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	482
266	my $freeze_guard = freeze_mainloop;	483	my $freeze_guard = freeze_mainloop;
267		484
268	my $busy = 1;	485	my $busy = 1;
269	my @res;	486	my @res;
270		487
271	(async {	488	(async {
		489	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	490	@res = eval { $job->() };
273	warn $@ if $@;	491	warn $@ if $@;
274	undef $busy;	492	undef $busy;
275	})->prio (Coro::PRIO_MAX);	493	})->prio (Coro::PRIO_MAX);
276		494
277	while ($busy) {	495	while ($busy) {
278	unless (Coro::cede) {	496	if (Coro::nready) {
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;	497	Coro::cede_notself;
		498	} else {
		499	EV::loop EV::LOOP_ONESHOT;
281	}	500	}
282	}	501	}
		502
		503	my $time = EV::time - $time;
		504
		505	$TICK_START += $time; # do not account sync jobs to server load
283		506
284	wantarray ? @res : $res[0]	507	wantarray ? @res : $res[0]
285	} else {	508	} else {
286	# we are in another coroutine, how wonderful, everything just works	509	# we are in another coroutine, how wonderful, everything just works
287		510
…		…
289	}	512	}
290	}	513	}
291		514
292	=item $coro = cf::async_ext { BLOCK }	515	=item $coro = cf::async_ext { BLOCK }
293		516
294	Like async, but this coro is automcatially being canceled when the	517	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	518	extension calling this is being unloaded.
296		519
297	=cut	520	=cut
298		521
299	sub async_ext(&) {	522	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	530	$EXT_CORO{$coro+0} = $coro;
308		531
309	$coro	532	$coro
310	}	533	}
311		534
312	sub write_runtime {	535	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		536
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	537	Executes the given code block with the given arguments in a seperate
316	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.
317		541
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	542	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		543
322	aio_fsync $fh	544	sub fork_call(&@) {
323	and return;	545	my ($cb, @args) = @_;
324		546
325	close $fh	547	# we seemingly have to make a local copy of the whole thing,
326	or return;	548	# otherwise perl prematurely frees the stuff :/
		549	# TODO: investigate and fix (likely this will be rather laborious)
327		550
328	aio_rename "$runtime~", $runtime	551	my @res = Coro::Util::fork_eval {
329	and return;	552	reset_signals;
		553	&$cb
		554	}, @args;
330		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($$) {
		628	my $key = "$_[0]/$_[1]";
		629
		630	cf::sync_job {
		631	BDB::db_get $DB, undef, $key, my $data;
		632
		633	$! ? ()
		634	: $data
331	1	635	}
		636	}
		637
		638	sub db_put($$$) {
		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 => $type });
332	}	722	}
333		723
334	=back	724	=back
335		725
336	=cut	726	=cut
337		727
338	#############################################################################	728	#############################################################################
339		729
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457
458	#############################################################################
459
460	=head2 ATTACHABLE OBJECTS	730	=head2 ATTACHABLE OBJECTS
461		731
462	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
463	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")
464	to it. All such attachable objects support the following methods.	734	to it. All such attachable objects support the following methods.
465		735
466	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>
467	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
468	crossfire+).	738	Deliantra).
469		739
470	=over 4	740	=over 4
471		741
472	=item $attachable->attach ($attachment, key => $value...)	742	=item $attachable->attach ($attachment, key => $value...)
473		743
…		…
517	=item cf::CLASS::attachment $name, ...	787	=item cf::CLASS::attachment $name, ...
518		788
519	Register an attachment by C<$name> through which attachable objects of the	789	Register an attachment by C<$name> through which attachable objects of the
520	given CLASS can refer to this attachment.	790	given CLASS can refer to this attachment.
521		791
522	Some classes such as crossfire maps and objects can specify attachments	792	Some classes such as deliantra maps and objects can specify attachments
523	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.
524		794
525	These calls expect any number of the following handler/hook descriptions:	795	These calls expect any number of the following handler/hook descriptions:
526		796
527	=over 4	797	=over 4
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	857	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	858	our @CB_MAP = ();
589		859
590	my %attachment;	860	my %attachment;
591		861
		862	sub cf::attachable::thawer_merge {
		863	# simply override everything except _meta
		864	local $_[0]{_meta};
		865	%{$_[0]} = %{$_[1]};
		866	}
		867
592	sub _attach_cb($$$$) {	868	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	869	my ($registry, $event, $prio, $cb) = @_;
594		870
595	use sort 'stable';	871	use sort 'stable';
596		872
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	906	$registry = $CB_TYPE[$object_type] ||= [];
631		907
632	} elsif ($type eq "subtype") {	908	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	909	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	910	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	911	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		912
637	} elsif ($type eq "package") {	913	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	914	my $pkg = shift @arg;
639		915
640	while (my ($name, $id) = each %cb_id) {	916	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	945	_attach $registry, $klass, @attach;
670	}	946	}
671		947
672	$obj->{$name} = \%arg;	948	$obj->{$name} = \%arg;
673	} else {	949	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	950	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	951	}
676		952
677	$obj->{_attachment}{$name} = undef;	953	$obj->{_attachment}{$name} = undef;
678	}	954	}
679		955
…		…
681	if (ref $_[0]) {	957	if (ref $_[0]) {
682	_object_attach @_;	958	_object_attach @_;
683	} else {	959	} else {
684	_attach shift->_attach_registry, @_;	960	_attach shift->_attach_registry, @_;
685	}	961	}
		962	_recalc_want;
686	};	963	};
687		964
688	# all those should be optimised	965	# all those should be optimised
689	sub cf::attachable::detach {	966	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	967	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	970	delete $obj->{_attachment}{$name};
694	reattach ($obj);	971	reattach ($obj);
695	} else {	972	} else {
696	Carp::croak "cannot, currently, detach class attachments";	973	Carp::croak "cannot, currently, detach class attachments";
697	}	974	}
		975	_recalc_want;
698	};	976	};
699		977
700	sub cf::attachable::attached {	978	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	979	my ($obj, $name) = @_;
702		980
…		…
717	";	995	";
718	die if $@;	996	die if $@;
719	}	997	}
720		998
721	our $override;	999	our $override;
722	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?
723		1001
724	sub override {	1002	sub override {
725	$override = 1;	1003	$override = 1;
726	@invoke_results = ();	1004	@INVOKE_RESULTS = (@_);
727	}	1005	}
728		1006
729	sub do_invoke {	1007	sub do_invoke {
730	my $event = shift;	1008	my $event = shift;
731	my $callbacks = shift;	1009	my $callbacks = shift;
732		1010
733	@invoke_results = ();	1011	@INVOKE_RESULTS = ();
734		1012
735	local $override;	1013	local $override;
736		1014
737	for (@$callbacks) {	1015	for (@$callbacks) {
738	eval { &{$_->[1]} };	1016	eval { &{$_->[1]} };
…		…
747	}	1025	}
748		1026
749	0	1027	0
750	}	1028	}
751		1029
752	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1030	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
753		1031
754	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
755		1033
756	Generate an object-specific event with the given arguments.	1034	Generate an object-specific event with the given arguments.
757		1035
758	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
759	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
760	results (if you must, access C<@cf::invoke_results> directly).	1038	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		1039
762	=back	1040	=back
763		1041
764	=cut	1042	=cut
765		1043
766	#############################################################################	1044	#############################################################################
767	# 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	}
768		1088
769	sub reattach {	1089	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	1090	# basically do the same as instantiate, without calling instantiate
771	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
772		1095
773	my $registry = $obj->registry;	1096	my $registry = $obj->registry;
774		1097
775	@$registry = ();	1098	@$registry = ();
776		1099
…		…
791	cf::attachable->attach (	1114	cf::attachable->attach (
792	prio => -1000000,	1115	prio => -1000000,
793	on_instantiate => sub {	1116	on_instantiate => sub {
794	my ($obj, $data) = @_;	1117	my ($obj, $data) = @_;
795		1118
796	$data = from_json $data;	1119	$data = decode_json $data;
797		1120
798	for (@$data) {	1121	for (@$data) {
799	my ($name, $args) = @$_;	1122	my ($name, $args) = @$_;
800		1123
801	$obj->attach ($name, %{$args || {} });	1124	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1140	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1141	my ($filename, $rdata, $objs) = @_;
819		1142
820	sync_job {	1143	sync_job {
821	if (length $$rdata) {	1144	if (length $$rdata) {
		1145	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1146	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1147	$decname, length $$rdata, scalar @$objs;
824		1148
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1149	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1150	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1151	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	1152	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	1153	aio_close $fh;
830		1154
831	if (@$objs) {	1155	if (@$objs) {
832	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) {
833	chmod SAVE_MODE, $fh;	1157	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1158	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1159	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	1160	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	1161	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1162	aio_rename "$filename.pst~", "$filename.pst";
839	}	1163	}
840	} else {	1164	} else {
841	aio_unlink "$filename.pst";	1165	aio_unlink "$filename.pst";
842	}	1166	}
843		1167
844	aio_rename "$filename~", $filename;	1168	aio_rename "$filename~", $filename;
		1169
		1170	$filename =~ s%/[^/]+$%%;
		1171	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1172	} else {
846	warn "FATAL: $filename~: $!\n";	1173	warn "unable to save objects: $filename~: $!\n";
847	}	1174	}
848	} else {	1175	} else {
849	aio_unlink $filename;	1176	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1177	aio_unlink "$filename.pst";
851	}	1178	}
852	}	1179	};
853	}	1180	}
854		1181
855	sub object_freezer_as_string {	1182	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1183	my ($rdata, $objs) = @_;
857		1184
…		…
869	or return;	1196	or return;
870		1197
871	unless (aio_stat "$filename.pst") {	1198	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1199	(aio_load "$filename.pst", $av) >= 0
873	or return;	1200	or return;
		1201
874	$av = eval { (Storable::thaw $av)->{objs} };	1202	my $st = eval { Coro::Storable::thaw $av };
		1203	$av = $st->{objs};
875	}	1204	}
876		1205
		1206	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1207	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1208	$decname, length $data, scalar @{$av || []};
		1209
879	return ($data, $av);	1210	($data, $av)
880	}	1211	}
		1212
		1213	=head2 COMMAND CALLBACKS
		1214
		1215	=over 4
		1216
		1217	=cut
881		1218
882	#############################################################################	1219	#############################################################################
883	# command handling &c	1220	# command handling &c
884		1221
885	=item cf::register_command $name => \&callback($ob,$args);	1222	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1235	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1236	}
900		1237
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1238	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1239
903	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.
904		1245
905	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
906	called.	1247	called.
907		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
908	=cut	1260	=cut
909		1261
910	sub register_extcmd {	1262	sub register_extcmd {
911	my ($name, $cb) = @_;	1263	my ($name, $cb) = @_;
912		1264
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1265	$EXTCMD{$name} = $cb;
917	}	1266	}
		1267
		1268	sub register_exticmd {
		1269	my ($name, $cb) = @_;
		1270
		1271	$EXTICMD{$name} = $cb;
		1272	}
		1273
		1274	use File::Glob ();
918		1275
919	cf::player->attach (	1276	cf::player->attach (
920	on_command => sub {	1277	on_command => sub {
921	my ($pl, $name, $params) = @_;	1278	my ($pl, $name, $params) = @_;
922		1279
…		…
930	cf::override;	1287	cf::override;
931	},	1288	},
932	on_extcmd => sub {	1289	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1290	my ($pl, $buf) = @_;
934		1291
935	my $msg = eval { from_json $buf };	1292	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1293
937	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
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1302	if (my $cb = $EXTCMD{$type}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1303	@reply = $cb->($pl, @payload);
940	$pl->ext_reply ($msg->{msgid}, %reply);
941	}
942	}	1304	}
		1305
		1306	$pl->ext_reply ($reply, @reply)
		1307	if $reply;
		1308
943	} else {	1309	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1310	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
945	}	1311	}
946		1312
947	cf::override;	1313	cf::override;
948	},	1314	},
949	);	1315	);
950		1316
951	sub register {	1317	# "readahead" all extensions
952	my ($base, $pkg) = @_;	1318	sub cache_extensions {
		1319	my $grp = IO::AIO::aio_group;
953		1320
954	#TODO	1321	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
955	}	1322	for (grep /\.ext$/, @{$_[0]}) {
		1323	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1324	}
		1325	};
956		1326
		1327	$grp
		1328	}
		1329
957	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($) {
958	my ($path) = @_;	1685	my ($path) = @_;
959		1686
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1687	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1688
966	warn "loading '$path' into '$pkg'\n";	1689	for my $region (list) {
967		1690	if ($region->{match} && $path =~ $region->{match}) {
968	open my $fh, "<:utf8", $path	1691	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1692	if $region->specificity > $specificity;
970		1693	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1694	}
1000		1695
1001	# remove commands	1696	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1697	}
1107		1698
1108	=back	1699	=back
1109
1110		1700
1111	=head3 cf::map	1701	=head3 cf::map
1112		1702
1113	=over 4	1703	=over 4
1114		1704
…		…
1117	package cf::map;	1707	package cf::map;
1118		1708
1119	use Fcntl;	1709	use Fcntl;
1120	use Coro::AIO;	1710	use Coro::AIO;
1121		1711
		1712	use overload
		1713	'""' => \&as_string,
		1714	fallback => 1;
		1715
1122	our $MAX_RESET = 3600;	1716	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1717	our $DEFAULT_RESET = 3000;
1124		1718
1125	sub generate_random_map {	1719	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1720	my ($self, $rmp) = @_;
		1721
		1722	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1127		1723
1128	# mit "rum" bekleckern, nicht	1724	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1725	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1726	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1727	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1728	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1729	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1730	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1731	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1732	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1733	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$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},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1735	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1736	(cf::region::find $rmp->{region}), $rmp->{custom}
		1737	)
		1738	}
		1739
		1740	=item cf::map->register ($regex, $prio)
		1741
		1742	Register a handler for the map path matching the given regex at the
		1743	givne priority (higher is better, built-in handlers have priority 0, the
		1744	default).
		1745
		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 {
		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"
1142	}	1865	}
1143		1866
1144	# and all this just because we cannot iterate over	1867	# and all this just because we cannot iterate over
1145	# all maps in C++...	1868	# all maps in C++...
1146	sub change_all_map_light {	1869	sub change_all_map_light {
…		…
1148		1871
1149	$_->change_map_light ($change)	1872	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1873	for grep $_->outdoor, values %cf::MAP;
1151	}	1874	}
1152		1875
		1876	sub decay_objects {
		1877	my ($self) = @_;
		1878
		1879	return if $self->{deny_reset};
		1880
		1881	$self->do_decay_objects;
		1882	}
		1883
		1884	sub unlink_save {
		1885	my ($self) = @_;
		1886
		1887	utf8::encode (my $save = $self->save_path);
		1888	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1889	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1890	}
		1891
1153	sub try_load_header($) {	1892	sub load_header_from($) {
1154	my ($path) = @_;	1893	my ($self, $path) = @_;
1155		1894
1156	utf8::encode $path;	1895	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1896	my $f = new_from_file cf::object::thawer $path
1158	or return;	1897	or return;
1159		1898
1160	my $map = cf::map::new	1899	$self->_load_header ($f)
1161	or return;	1900	or return;
1162		1901
1163	# for better error messages only, will be overwritten	1902	local $MAP_LOADING{$self->{path}} = $self;
1164	$map->path ($path);	1903	$f->resolve_delayed_derefs;
1165		1904
1166	$map->load_header ($path)	1905	$self->{load_path} = $path;
		1906
		1907	1
		1908	}
		1909
		1910	sub load_header_orig {
		1911	my ($self) = @_;
		1912
		1913	$self->load_header_from ($self->load_path)
		1914	}
		1915
		1916	sub load_header_temp {
		1917	my ($self) = @_;
		1918
		1919	$self->load_header_from ($self->save_path)
		1920	}
		1921
		1922	sub prepare_temp {
		1923	my ($self) = @_;
		1924
		1925	$self->last_access ((delete $self->{last_access})
		1926	|| $cf::RUNTIME); #d#
		1927	# safety
		1928	$self->{instantiate_time} = $cf::RUNTIME
		1929	if $self->{instantiate_time} > $cf::RUNTIME;
		1930	}
		1931
		1932	sub prepare_orig {
		1933	my ($self) = @_;
		1934
		1935	$self->{load_original} = 1;
		1936	$self->{instantiate_time} = $cf::RUNTIME;
		1937	$self->last_access ($cf::RUNTIME);
		1938	$self->instantiate;
		1939	}
		1940
		1941	sub load_header {
		1942	my ($self) = @_;
		1943
		1944	if ($self->load_header_temp) {
		1945	$self->prepare_temp;
		1946	} else {
		1947	$self->load_header_orig
1167	or return;	1948	or return;
		1949	$self->prepare_orig;
		1950	}
1168		1951
1169	$map->{load_path} = $path;	1952	$self->{deny_reset} = 1
		1953	if $self->no_reset;
1170		1954
1171	$map	1955	$self->default_region (cf::region::find_by_path $self->{path})
		1956	unless $self->default_region;
		1957
		1958	1
1172	}	1959	}
1173		1960
1174	sub find;	1961	sub find;
1175	sub find {	1962	sub find {
1176	my ($path, $origin) = @_;	1963	my ($path, $origin) = @_;
1177		1964
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1965	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1966
1183	cf::lock_wait "map_find:$key";	1967	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1184
1185	$cf::MAP{$key} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	1968	my $guard2 = cf::lock_acquire "map_find:$path";
1187		1969
1188	# do it the slow way	1970	$cf::MAP{$path} || do {
1189	my $map = try_load_header $path->save_path;	1971	my $map = new_from_path cf::map $path
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1972	or return;
1207		1973
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1974	$map->{last_save} = $cf::RUNTIME;
1220		1975
1221	Coro::cede;	1976	$map->load_header
		1977	or return;
1222		1978
1223	if ($map->should_reset) {	1979	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1980	# doing this can freeze the server in a sync job, obviously
		1981	#$cf::WAIT_FOR_TICK->wait;
		1982	undef $guard2;
		1983	undef $guard1;
1224	$map->reset;	1984	$map->reset;
1225	undef $guard;
1226	$map = find $path	1985	return find $path;
1227	or return;
1228	}	1986	}
1229		1987
1230	$cf::MAP{$key} = $map	1988	$cf::MAP{$path} = $map
1231	}	1989	}
1232	}	1990	}
		1991
		1992	sub pre_load { }
		1993	sub post_load { }
1233		1994
1234	sub load {	1995	sub load {
1235	my ($self) = @_;	1996	my ($self) = @_;
1236		1997
		1998	local $self->{deny_reset} = 1; # loading can take a long time
		1999
1237	my $path = $self->{path};	2000	my $path = $self->{path};
		2001
		2002	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2003	my $guard = cf::lock_acquire "map_data:$path";
1239		2004
		2005	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2006	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2007
1242	$self->in_memory (cf::MAP_LOADING);	2008	$self->in_memory (cf::MAP_LOADING);
1243		2009
1244	$self->alloc;	2010	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	2011
		2012	$self->pre_load;
		2013	cf::cede_to_tick;
		2014
		2015	my $f = new_from_file cf::object::thawer $self->{load_path};
		2016	$f->skip_block;
		2017	$self->_load_objects ($f)
1246	or return;	2018	or return;
1247		2019
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2020	$self->post_load_original
1249	if delete $self->{load_original};	2021	if delete $self->{load_original};
1250		2022
1251	if (my $uniq = $path->uniq_path) {	2023	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2024	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2025	unless (aio_stat $uniq) {
		2026	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2027	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2028	$self->_load_objects ($f);
		2029	$f->resolve_delayed_derefs;
		2030	}
1256	}	2031	}
1257	}	2032	}
1258		2033
1259	Coro::cede;	2034	$f->resolve_delayed_derefs;
1260		2035
		2036	cf::cede_to_tick;
1261	# now do the right thing for maps	2037	# now do the right thing for maps
1262	$self->link_multipart_objects;	2038	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	2039	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	2040	unless $self->difficulty;
		2041	cf::cede_to_tick;
		2042
		2043	unless ($self->{deny_activate}) {
		2044	$self->decay_objects;
		2045	$self->fix_auto_apply;
		2046	$self->update_buttons;
		2047	cf::cede_to_tick;
		2048	$self->set_darkness_map;
		2049	cf::cede_to_tick;
1274	$self->activate;	2050	$self->activate;
1275	}	2051	}
1276		2052
1277	Coro::cede;	2053	$self->{last_save} = $cf::RUNTIME;
		2054	$self->last_access ($cf::RUNTIME);
1278		2055
1279	$self->in_memory (cf::MAP_IN_MEMORY);	2056	$self->in_memory (cf::MAP_ACTIVE);
		2057	}
		2058
		2059	$self->post_load;
		2060	}
		2061
		2062	sub customise_for {
		2063	my ($self, $ob) = @_;
		2064
		2065	return find "~" . $ob->name . "/" . $self->{path}
		2066	if $self->per_player;
		2067
		2068	# return find "?party/" . $ob->name . "/" . $self->{path}
		2069	# if $self->per_party;
		2070
		2071	$self
		2072	}
		2073
		2074	# find and load all maps in the 3x3 area around a map
		2075	sub load_neighbours {
		2076	my ($map) = @_;
		2077
		2078	my @neigh; # diagonal neighbours
		2079
		2080	for (0 .. 3) {
		2081	my $neigh = $map->tile_path ($_)
		2082	or next;
		2083	$neigh = find $neigh, $map
		2084	or next;
		2085	$neigh->load;
		2086
		2087	push @neigh,
		2088	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2089	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2090	}
		2091
		2092	for (grep defined $_->[0], @neigh) {
		2093	my ($path, $origin) = @$_;
		2094	my $neigh = find $path, $origin
		2095	or next;
		2096	$neigh->load;
		2097	}
1280	}	2098	}
1281		2099
1282	sub find_sync {	2100	sub find_sync {
1283	my ($path, $origin) = @_;	2101	my ($path, $origin) = @_;
1284		2102
1285	cf::sync_job { cf::map::find $path, $origin }	2103	cf::sync_job { find $path, $origin }
1286	}	2104	}
1287		2105
1288	sub do_load_sync {	2106	sub do_load_sync {
1289	my ($map) = @_;	2107	my ($map) = @_;
1290		2108
		2109	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2110	if $Coro::current == $Coro::main;
		2111
1291	cf::sync_job { $map->load };	2112	cf::sync_job { $map->load };
		2113	}
		2114
		2115	our %MAP_PREFETCH;
		2116	our $MAP_PREFETCHER = undef;
		2117
		2118	sub find_async {
		2119	my ($path, $origin, $load) = @_;
		2120
		2121	$path = normalise $path, $origin && $origin->{path};
		2122
		2123	if (my $map = $cf::MAP{$path}) {
		2124	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2125	}
		2126
		2127	$MAP_PREFETCH{$path} |= $load;
		2128
		2129	$MAP_PREFETCHER ||= cf::async {
		2130	$Coro::current->{desc} = "map prefetcher";
		2131
		2132	while (%MAP_PREFETCH) {
		2133	while (my ($k, $v) = each %MAP_PREFETCH) {
		2134	if (my $map = find $k) {
		2135	$map->load if $v;
		2136	}
		2137
		2138	delete $MAP_PREFETCH{$k};
		2139	}
		2140	}
		2141	undef $MAP_PREFETCHER;
		2142	};
		2143	$MAP_PREFETCHER->prio (6);
		2144
		2145	()
1292	}	2146	}
1293		2147
1294	sub save {	2148	sub save {
1295	my ($self) = @_;	2149	my ($self) = @_;
1296		2150
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2151	my $lock = cf::lock_acquire "map_data:$self->{path}";
1298		2152
1299	$self->{last_save} = $cf::RUNTIME;	2153	$self->{last_save} = $cf::RUNTIME;
1300		2154
1301	return unless $self->dirty;	2155	return unless $self->dirty;
1302		2156
1303	my $save = $self->{path}->save_path; utf8::encode $save;	2157	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2158	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		2159
1306	$self->{load_path} = $save;	2160	$self->{load_path} = $save;
1307		2161
1308	return if $self->{deny_save};	2162	return if $self->{deny_save};
1309		2163
1310	local $self->{last_access} = $self->last_access;#d#	2164	local $self->{last_access} = $self->last_access;#d#
1311		2165
		2166	cf::async {
		2167	$Coro::current->{desc} = "map player save";
		2168	$_->contr->save for $self->players;
		2169	};
		2170
		2171	cf::get_slot 0.02;
		2172
1312	if ($uniq) {	2173	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2174	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	2175	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	2176	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2177	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	2178	}
1318	}	2179	}
1319		2180
1320	sub swap_out {	2181	sub swap_out {
1321	my ($self) = @_;	2182	my ($self) = @_;
1322		2183
1323	# save first because save cedes	2184	# save first because save cedes
1324	$self->save;	2185	$self->save;
1325		2186
1326	my $lock = cf::lock_acquire "map_data:" . $self->path;	2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2188
1328	return if $self->players;	2189	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2190	return if $self->in_memory != cf::MAP_ACTIVE;
1330	return if $self->{deny_save};	2191	return if $self->{deny_save};
1331		2192
		2193	$self->in_memory (cf::MAP_SWAPPED);
		2194
		2195	$self->deactivate;
		2196	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2197	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2198	}
1335		2199
1336	sub reset_at {	2200	sub reset_at {
1337	my ($self) = @_;	2201	my ($self) = @_;
1338		2202
1339	# TODO: safety, remove and allow resettable per-player maps	2203	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2204	return 1e99 if $self->{deny_reset};
1342		2205
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2206	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2207	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2208
…		…
1350	my ($self) = @_;	2213	my ($self) = @_;
1351		2214
1352	$self->reset_at <= $cf::RUNTIME	2215	$self->reset_at <= $cf::RUNTIME
1353	}	2216	}
1354		2217
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2218	sub reset {
1377	my ($self) = @_;	2219	my ($self) = @_;
1378		2220
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2221	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2222
1381	return if $self->players;	2223	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2224
1384	warn "resetting map ", $self->path;#d#	2225	warn "resetting map ", $self->path;
		2226
		2227	$self->in_memory (cf::MAP_SWAPPED);
		2228
		2229	# need to save uniques path
		2230	unless ($self->{deny_save}) {
		2231	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2232
		2233	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2234	if $uniq;
		2235	}
1385		2236
1386	delete $cf::MAP{$self->path};	2237	delete $cf::MAP{$self->path};
1387		2238
		2239	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2240	$_->clear_links_to ($self) for values %cf::MAP;
		2241	$self->clear;
1389		2242
1390	$self->unlink_save;	2243	$self->unlink_save;
1391	$self->destroy;	2244	$self->destroy;
1392	}	2245	}
1393		2246
1394	my $nuke_counter = "aaaa";	2247	my $nuke_counter = "aaaa";
1395		2248
1396	sub nuke {	2249	sub nuke {
1397	my ($self) = @_;	2250	my ($self) = @_;
1398		2251
		2252	{
		2253	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2254
		2255	delete $cf::MAP{$self->path};
		2256
		2257	$self->unlink_save;
		2258
		2259	bless $self, "cf::map";
		2260	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2261	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2262	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2263	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2264
		2265	$cf::MAP{$self->path} = $self;
		2266	}
		2267
1402	$self->reset; # polite request, might not happen	2268	$self->reset; # polite request, might not happen
1403	}	2269	}
1404		2270
1405	sub customise_for {	2271	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2272
1408	if ($map->per_player) {	2273	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2274	maps. May block.
		2275
		2276	=cut
		2277
		2278	sub tmp_maps() {
1410	}	2279	[
1411		2280	map {
1412	$map	2281	utf8::decode $_;
		2282	/\.map$/
		2283	? normalise $_
		2284	: ()
		2285	} @{ aio_readdir $TMPDIR or [] }
		2286	]
1413	}	2287	}
1414		2288
1415	sub emergency_save {	2289	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2290
1418	warn "enter emergency map save\n";	2291	Returns an arrayref with all map paths of currently instantiated and saved
		2292	random maps. May block.
1419		2293
1420	cf::sync_job {	2294	=cut
1421	warn "begin emergency map save\n";	2295
1422	$_->save for values %cf::MAP;	2296	sub random_maps() {
		2297	[
		2298	map {
		2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise "?random/$_"
		2302	: ()
		2303	} @{ aio_readdir $RANDOMDIR or [] }
		2304	]
		2305	}
		2306
		2307	=item cf::map::unique_maps
		2308
		2309	Returns an arrayref of paths of all shared maps that have
		2310	instantiated unique items. May block.
		2311
		2312	=cut
		2313
		2314	sub unique_maps() {
		2315	[
		2316	map {
		2317	utf8::decode $_;
		2318	s/\.map$//; # TODO future compatibility hack
		2319	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2320	? ()
		2321	: normalise $_
		2322	} @{ aio_readdir $UNIQUEDIR or [] }
		2323	]
		2324	}
		2325
		2326	=back
		2327
		2328	=head3 cf::object
		2329
		2330	=cut
		2331
		2332	package cf::object;
		2333
		2334	=over 4
		2335
		2336	=item $ob->inv_recursive
		2337
		2338	Returns the inventory of the object I<and> their inventories, recursively,
		2339	but I<not> the object itself.
		2340
		2341	=cut
		2342
		2343	sub inv_recursive_;
		2344	sub inv_recursive_ {
		2345	map { $_, inv_recursive_ $_->inv } @_
		2346	}
		2347
		2348	sub inv_recursive {
		2349	inv_recursive_ inv $_[0]
		2350	}
		2351
		2352	=item $ref = $ob->ref
		2353
		2354	Creates and returns a persistent reference to an object that can be stored as a string.
		2355
		2356	=item $ob = cf::object::deref ($refstring)
		2357
		2358	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2359	even if the object actually exists. May block.
		2360
		2361	=cut
		2362
		2363	sub deref {
		2364	my ($ref) = @_;
		2365
		2366	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2367	my ($uuid, $name) = ($1, $2);
		2368	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2369	or return;
		2370	$pl->ob->uuid eq $uuid
		2371	or return;
		2372
		2373	$pl->ob
		2374	} else {
		2375	warn "$ref: cannot resolve object reference\n";
		2376	undef
1423	};	2377	}
1424
1425	warn "end emergency map save\n";
1426	}	2378	}
1427		2379
1428	package cf;	2380	package cf;
1429		2381
1430	=back	2382	=back
1431
1432		2383
1433	=head3 cf::object::player	2384	=head3 cf::object::player
1434		2385
1435	=over 4	2386	=over 4
1436		2387
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2390	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1440	can be C<undef>. Does the right thing when the player is currently in a	2391	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2392	dialogue with the given NPC character.
1442		2393
1443	=cut	2394	=cut
		2395
		2396	our $SAY_CHANNEL = {
		2397	id => "say",
		2398	title => "Map",
		2399	reply => "say ",
		2400	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2401	};
		2402
		2403	our $CHAT_CHANNEL = {
		2404	id => "chat",
		2405	title => "Chat",
		2406	reply => "chat ",
		2407	tooltip => "Player chat and shouts, global to the server.",
		2408	};
1444		2409
1445	# rough implementation of a future "reply" method that works	2410	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2411	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2412	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2413	sub cf::object::player::reply($$$;$) {
…		…
1450		2415
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2416	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2417
1453	if ($self->{record_replies}) {	2418	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2419	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2420
1455	} else {	2421	} else {
		2422	my $pl = $self->contr;
		2423
		2424	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2425	my $dialog = $pl->{npc_dialog};
		2426	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2427
		2428	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2429	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2430	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2431	}
1458	}	2432	}
		2433	}
		2434
		2435	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2436
		2437	=cut
		2438
		2439	sub cf::object::send_msg {
		2440	my $pl = shift->contr
		2441	or return;
		2442	$pl->send_msg (@_);
1459	}	2443	}
1460		2444
1461	=item $player_object->may ("access")	2445	=item $player_object->may ("access")
1462		2446
1463	Returns wether the given player is authorized to access resource "access"	2447	Returns wether the given player is authorized to access resource "access"
…		…
1476		2460
1477	=item $player_object->enter_link	2461	=item $player_object->enter_link
1478		2462
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2463	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2464
1481	The player should be reaosnably safe there for short amounts of time. You	2465	The player should be reasonably safe there for short amounts of time (e.g.
1482	I<MUST> call C<leave_link> as soon as possible, though.	2466	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2467	though, as the palyer cannot control the character while it is on the link
		2468	map.
		2469
		2470	Will never block.
1483		2471
1484	=item $player_object->leave_link ($map, $x, $y)	2472	=item $player_object->leave_link ($map, $x, $y)
1485		2473
1486	Moves the player out of the specila link map onto the given map. If the	2474	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2475	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2476	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2477	fails, to the emergency map position.
1490		2478
1491	Might block.	2479	Might block.
1492		2480
1493	=cut	2481	=cut
		2482
		2483	sub link_map {
		2484	unless ($LINK_MAP) {
		2485	$LINK_MAP = cf::map::find "{link}"
		2486	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2487	$LINK_MAP->load;
		2488	}
		2489
		2490	$LINK_MAP
		2491	}
1494		2492
1495	sub cf::object::player::enter_link {	2493	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2494	my ($self) = @_;
1497		2495
1498	$self->deactivate_recursive;	2496	$self->deactivate_recursive;
1499		2497
1500	return if $self->map == $LINK_MAP;	2498	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2499
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2501	if $self->map && $self->map->{path} ne "{link}";
1504		2502
1505	$self->enter_map ($LINK_MAP, 20, 20);	2503	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2504	}
1507		2505
1508	sub cf::object::player::leave_link {	2506	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2507	my ($self, $map, $x, $y) = @_;
		2508
		2509	return unless $self->contr->active;
1510		2510
1511	my $link_pos = delete $self->{_link_pos};	2511	my $link_pos = delete $self->{_link_pos};
1512		2512
1513	unless ($map) {	2513	unless ($map) {
1514	# restore original map position	2514	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2528	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2529	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2530	if $x <=0 && $y <= 0;
1531		2531
1532	$map->load;	2532	$map->load;
		2533	$map->load_neighbours;
1533		2534
		2535	return unless $self->contr->active;
		2536	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1534	$self->activate_recursive;	2537	$self->activate_recursive;
		2538
		2539	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2540	$self->enter_map ($map, $x, $y);
1536	}	2541	}
1537		2542
1538	cf::player->attach (	2543	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2544
1542	# abort map switching before logout	2545	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2546	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2547	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2548	the new (success) or old (failed) map position. In either case, $done will
1546	};	2549	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2550
1552	# try to abort aborted map switching on player login :)	2551	Note that $check will be called with a potentially non-loaded map, so if
1553	# should happen only on crashes	2552	it needs a loaded map it has to call C<< ->load >>.
1554	if ($pl->ob->{_link_pos}) {
1555		2553
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)
1572
1573	=cut	2554	=cut
		2555
		2556	our $GOTOGEN;
1574		2557
1575	sub cf::object::player::goto {	2558	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2559	my ($self, $path, $x, $y, $check, $done) = @_;
		2560
		2561	# do generation counting so two concurrent goto's will be executed in-order
		2562	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2563
1578	$self->enter_link;	2564	$self->enter_link;
1579		2565
1580	(async {	2566	(async {
1581	$path = new cf::path $path;	2567	$Coro::current->{desc} = "player::goto $path $x $y";
1582		2568
1583	my $map = cf::map::find $path->as_string;	2569	# *tag paths override both path and x|y
		2570	if ($path =~ /^\*(.*)$/) {
		2571	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2572	my $ob = $obs[rand @obs];
		2573
		2574	# see if we actually can go there
		2575	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2576	$ob = $obs[rand @obs];
		2577	} else {
		2578	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2579	}
		2580	# else put us there anyways for now #d#
		2581
		2582	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2583	} else {
		2584	($path, $x, $y) = (undef, undef, undef);
		2585	}
		2586	}
		2587
		2588	my $map = eval {
		2589	my $map = defined $path ? cf::map::find $path : undef;
		2590
		2591	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2592	$map = $map->customise_for ($self);
1585		2593	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2594	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2595	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	}
1590		2597
		2598	$map
		2599	};
		2600
		2601	if ($@) {
		2602	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2603	LOG llevError | logBacktrace, Carp::longmess $@;
		2604	}
		2605
		2606	if ($gen == $self->{_goto_generation}) {
		2607	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2608	$self->leave_link ($map, $x, $y);
		2609	}
		2610
		2611	$done->() if $done;
1592	})->prio (1);	2612	})->prio (1);
1593	}	2613	}
1594		2614
1595	=item $player_object->enter_exit ($exit_object)	2615	=item $player_object->enter_exit ($exit_object)
1596		2616
…		…
1598		2618
1599	sub parse_random_map_params {	2619	sub parse_random_map_params {
1600	my ($spec) = @_;	2620	my ($spec) = @_;
1601		2621
1602	my $rmp = { # defaults	2622	my $rmp = { # defaults
1603	xsize => 10,	2623	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2624	ysize => (cf::rndm 15, 40),
		2625	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2626	#layout => string,
1605	};	2627	};
1606		2628
1607	for (split /\n/, $spec) {	2629	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2630	my ($k, $v) = split /\s+/, $_, 2;
1609		2631
…		…
1621	# that depends on the exit object	2643	# that depends on the exit object
1622		2644
1623	my $rmp = parse_random_map_params $exit->msg;	2645	my $rmp = parse_random_map_params $exit->msg;
1624		2646
1625	if ($exit->map) {	2647	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2648	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2649	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2650	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2651	$rmp->{origin_y} = $exit->y;
		2652
		2653	$exit->map->touch;
1630	}	2654	}
1631		2655
1632	$rmp->{random_seed} ||= $exit->random_seed;	2656	$rmp->{random_seed} ||= $exit->random_seed;
1633		2657
1634	my $data = cf::to_json $rmp;	2658	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1635	my $md5 = Digest::MD5::md5_hex $data;	2659	my $md5 = Digest::MD5::md5_hex $data;
		2660	my $meta = "$RANDOMDIR/$md5.meta";
1636		2661
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2662	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2663	aio_write $fh, 0, (length $data), $data, 0;
		2664	undef $fh;
		2665	aio_rename "$meta~", $meta;
1639		2666
		2667	my $slaying = "?random/$md5";
		2668
		2669	if ($exit->valid) {
1640	$exit->slaying ("?random/$md5");	2670	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2671	$exit->msg (undef);
		2672	}
1642	}	2673	}
1643	}	2674	}
1644		2675
1645	sub cf::object::player::enter_exit {	2676	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2677	my ($self, $exit) = @_;
…		…
1648	return unless $self->type == cf::PLAYER;	2679	return unless $self->type == cf::PLAYER;
1649		2680
1650	$self->enter_link;	2681	$self->enter_link;
1651		2682
1652	(async {	2683	(async {
1653	$self->deactivate_recursive; # just to be sure	2684	$Coro::current->{desc} = "enter_exit";
		2685
1654	unless (eval {	2686	unless (eval {
		2687	$self->deactivate_recursive; # just to be sure
		2688
		2689	# random map handling
		2690	{
		2691	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2692
1655	prepare_random_map $exit	2693	prepare_random_map $exit
1656	if $exit->slaying eq "/!";	2694	if $exit->slaying eq "/!";
		2695	}
1657		2696
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2697	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2698	my $x = $exit->stats->hp;
		2699	my $y = $exit->stats->sp;
1660		2700
		2701	$self->goto ($map, $x, $y);
		2702
		2703	# if exit is damned, update players death & WoR home-position
		2704	$self->contr->savebed ($map, $x, $y)
		2705	if $exit->flag (cf::FLAG_DAMNED);
		2706
1661	1;	2707	1
1662	}) {	2708	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2709	$self->message ("Something went wrong deep within the deliantra server. "
1664	. "I'll try to bring you back to the map you were before. "	2710	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2711	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2712	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2713
1668	warn "ERROR in enter_exit: $@";	2714	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2715	$self->leave_link;
1670	}	2716	}
1671	})->prio (1);	2717	})->prio (1);
…		…
1684		2730
1685	sub cf::client::send_drawinfo {	2731	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2732	my ($self, $text, $flags) = @_;
1687		2733
1688	utf8::encode $text;	2734	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2735	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2736	}
1691		2737
		2738	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2739
		2740	Send a drawinfo or msg packet to the client, formatting the msg for the
		2741	client if neccessary. C<$type> should be a string identifying the type of
		2742	the message, with C<log> being the default. If C<$color> is negative, suppress
		2743	the message unless the client supports the msg packet.
		2744
		2745	=cut
		2746
		2747	# non-persistent channels (usually the info channel)
		2748	our %CHANNEL = (
		2749	"c/identify" => {
		2750	id => "infobox",
		2751	title => "Identify",
		2752	reply => undef,
		2753	tooltip => "Items recently identified",
		2754	},
		2755	"c/examine" => {
		2756	id => "infobox",
		2757	title => "Examine",
		2758	reply => undef,
		2759	tooltip => "Signs and other items you examined",
		2760	},
		2761	"c/book" => {
		2762	id => "infobox",
		2763	title => "Book",
		2764	reply => undef,
		2765	tooltip => "The contents of a note or book",
		2766	},
		2767	"c/lookat" => {
		2768	id => "infobox",
		2769	title => "Look",
		2770	reply => undef,
		2771	tooltip => "What you saw there",
		2772	},
		2773	"c/who" => {
		2774	id => "infobox",
		2775	title => "Players",
		2776	reply => undef,
		2777	tooltip => "Shows players who are currently online",
		2778	},
		2779	"c/body" => {
		2780	id => "infobox",
		2781	title => "Body Parts",
		2782	reply => undef,
		2783	tooltip => "Shows which body parts you posess and are available",
		2784	},
		2785	"c/skills" => {
		2786	id => "infobox",
		2787	title => "Skills",
		2788	reply => undef,
		2789	tooltip => "Shows your experience per skill and item power",
		2790	},
		2791	"c/uptime" => {
		2792	id => "infobox",
		2793	title => "Uptime",
		2794	reply => undef,
		2795	tooltip => "How long the server has been running since last restart",
		2796	},
		2797	"c/mapinfo" => {
		2798	id => "infobox",
		2799	title => "Map Info",
		2800	reply => undef,
		2801	tooltip => "Information related to the maps",
		2802	},
		2803	"c/party" => {
		2804	id => "party",
		2805	title => "Party",
		2806	reply => "gsay ",
		2807	tooltip => "Messages and chat related to your party",
		2808	},
		2809	);
		2810
		2811	sub cf::client::send_msg {
		2812	my ($self, $channel, $msg, $color, @extra) = @_;
		2813
		2814	$msg = $self->pl->expand_cfpod ($msg)
		2815	unless $color & cf::NDI_VERBATIM;
		2816
		2817	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2818
		2819	# check predefined channels, for the benefit of C
		2820	if ($CHANNEL{$channel}) {
		2821	$channel = $CHANNEL{$channel};
		2822
		2823	$self->ext_msg (channel_info => $channel)
		2824	if $self->can_msg;
		2825
		2826	$channel = $channel->{id};
		2827
		2828	} elsif (ref $channel) {
		2829	# send meta info to client, if not yet sent
		2830	unless (exists $self->{channel}{$channel->{id}}) {
		2831	$self->{channel}{$channel->{id}} = $channel;
		2832	$self->ext_msg (channel_info => $channel)
		2833	if $self->can_msg;
		2834	}
		2835
		2836	$channel = $channel->{id};
		2837	}
		2838
		2839	return unless @extra || length $msg;
		2840
		2841	if ($self->can_msg) {
		2842	# default colour, mask it out
		2843	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2844	if $color & cf::NDI_DEF;
		2845
		2846	my $pkt = "msg "
		2847	. $self->{json_coder}->encode (
		2848	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2849	);
		2850
		2851	# try lzf for large packets
		2852	$pkt = "lzf " . Compress::LZF::compress $pkt
		2853	if 1024 <= length $pkt and $self->{can_lzf};
		2854
		2855	# split very large packets
		2856	if (8192 < length $pkt and $self->{can_lzf}) {
		2857	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2858	$pkt = "frag";
		2859	}
		2860
		2861	$self->send_packet ($pkt);
		2862	} else {
		2863	if ($color >= 0) {
		2864	# replace some tags by gcfclient-compatible ones
		2865	for ($msg) {
		2866	1 while
		2867	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2868	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2869	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2870	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2871	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2872	}
		2873
		2874	$color &= cf::NDI_COLOR_MASK;
		2875
		2876	utf8::encode $msg;
		2877
		2878	if (0 && $msg =~ /\[/) {
		2879	# COMMAND/INFO
		2880	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2881	} else {
		2882	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2883	$self->send_packet ("drawinfo $color $msg")
		2884	}
		2885	}
		2886	}
		2887	}
		2888
		2889	=item $client->ext_msg ($type, @msg)
		2890
		2891	Sends an ext event to the client.
		2892
		2893	=cut
		2894
		2895	sub cf::client::ext_msg($$@) {
		2896	my ($self, $type, @msg) = @_;
		2897
		2898	if ($self->extcmd == 2) {
		2899	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2900	} elsif ($self->extcmd == 1) { # TODO: remove
		2901	push @msg, msgtype => "event_$type";
		2902	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2903	}
		2904	}
		2905
		2906	=item $client->ext_reply ($msgid, @msg)
		2907
		2908	Sends an ext reply to the client.
		2909
		2910	=cut
		2911
		2912	sub cf::client::ext_reply($$@) {
		2913	my ($self, $id, @msg) = @_;
		2914
		2915	if ($self->extcmd == 2) {
		2916	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2917	} elsif ($self->extcmd == 1) {
		2918	#TODO: version 1, remove
		2919	unshift @msg, msgtype => "reply", msgid => $id;
		2920	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2921	}
		2922	}
1692		2923
1693	=item $success = $client->query ($flags, "text", \&cb)	2924	=item $success = $client->query ($flags, "text", \&cb)
1694		2925
1695	Queues a query to the client, calling the given callback with	2926	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2927	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2928	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2929
1699	Queries can fail, so check the return code. Or don't, as queries will become	2930	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2931	become reliable at some point in the future.
1701		2932
1702	=cut	2933	=cut
1703		2934
1704	sub cf::client::query {	2935	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2936	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2944	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2945	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2946
1716	$self->send_packet ($self->{query_queue}[0][0])	2947	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2948	if @{ $self->{query_queue} } == 1;
		2949
		2950	1
1718	}	2951	}
1719		2952
1720	cf::client->attach (	2953	cf::client->attach (
		2954	on_connect => sub {
		2955	my ($ns) = @_;
		2956
		2957	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2958	},
1721	on_reply => sub {	2959	on_reply => sub {
1722	my ($ns, $msg) = @_;	2960	my ($ns, $msg) = @_;
1723		2961
1724	# this weird shuffling is so that direct followup queries	2962	# this weird shuffling is so that direct followup queries
1725	# get handled first	2963	# get handled first
1726	my $queue = delete $ns->{query_queue}	2964	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2965	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2966
1729	(shift @$queue)->[1]->($msg);	2967	(shift @$queue)->[1]->($msg);
		2968	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2969
1731	push @{ $ns->{query_queue} }, @$queue;	2970	push @{ $ns->{query_queue} }, @$queue;
1732		2971
1733	if (@{ $ns->{query_queue} } == @$queue) {	2972	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2973	if (@$queue) {
…		…
1736	} else {	2975	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2976	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	2977	}
1739	}	2978	}
1740	},	2979	},
		2980	on_exticmd => sub {
		2981	my ($ns, $buf) = @_;
		2982
		2983	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2984
		2985	if (ref $msg) {
		2986	my ($type, $reply, @payload) =
		2987	"ARRAY" eq ref $msg
		2988	? @$msg
		2989	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2990
		2991	my @reply;
		2992
		2993	if (my $cb = $EXTICMD{$type}) {
		2994	@reply = $cb->($ns, @payload);
		2995	}
		2996
		2997	$ns->ext_reply ($reply, @reply)
		2998	if $reply;
		2999
		3000	} else {
		3001	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3002	}
		3003
		3004	cf::override;
		3005	},
1741	);	3006	);
1742		3007
1743	=item $client->async (\&cb)	3008	=item $client->async (\&cb)
1744		3009
1745	Create a new coroutine, running the specified callback. The coroutine will	3010	Create a new coroutine, running the specified callback. The coroutine will
…		…
1786	our $safe = new Safe "safe";	3051	our $safe = new Safe "safe";
1787	our $safe_hole = new Safe::Hole;	3052	our $safe_hole = new Safe::Hole;
1788		3053
1789	$SIG{FPE} = 'IGNORE';	3054	$SIG{FPE} = 'IGNORE';
1790		3055
1791	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3056	$safe->permit_only (Opcode::opset qw(
		3057	:base_core :base_mem :base_orig :base_math
		3058	grepstart grepwhile mapstart mapwhile
		3059	sort time
		3060	));
1792		3061
1793	# here we export the classes and methods available to script code	3062	# here we export the classes and methods available to script code
1794		3063
1795	=pod	3064	=pod
1796		3065
1797	The following fucntions and emthods are available within a safe environment:	3066	The following functions and methods are available within a safe environment:
1798		3067
1799	cf::object contr pay_amount pay_player map	3068	cf::object
		3069	contr pay_amount pay_player map x y force_find force_add destroy
		3070	insert remove name archname title slaying race decrease split
		3071
1800	cf::object::player player	3072	cf::object::player
1801	cf::player peaceful	3073	player
1802	cf::map trigger	3074
		3075	cf::player
		3076	peaceful
		3077
		3078	cf::map
		3079	trigger
1803		3080
1804	=cut	3081	=cut
1805		3082
1806	for (	3083	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	3084	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3085	insert remove inv nrof name archname title slaying race
		3086	decrease split destroy change_exp)],
1808	["cf::object::player" => qw(player)],	3087	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	3088	["cf::player" => qw(peaceful)],
1810	["cf::map" => qw(trigger)],	3089	["cf::map" => qw(trigger)],
1811	) {	3090	) {
1812	no strict 'refs';	3091	no strict 'refs';
…		…
1883	=back	3162	=back
1884		3163
1885	=cut	3164	=cut
1886		3165
1887	#############################################################################	3166	#############################################################################
		3167	# the server's init and main functions
1888		3168
1889	=head2 EXTENSION DATABASE SUPPORT	3169	sub load_facedata($) {
		3170	my ($path) = @_;
1890		3171
1891	Crossfire maintains a very simple database for extension use. It can	3172	# HACK to clear player env face cache, we need some signal framework
1892	currently store anything that can be serialised using Storable, which	3173	# for this (global event?)
1893	excludes objects.	3174	%ext::player_env::MUSIC_FACE_CACHE = ();
1894		3175
1895	The parameter C<$family> should best start with the name of the extension	3176	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1896	using it, it should be unique.
1897		3177
1898	=over 4	3178	warn "loading facedata from $path\n";
1899		3179
1900	=item $hashref = cf::db_get $family	3180	my $facedata;
		3181	0 < aio_load $path, $facedata
		3182	or die "$path: $!";
1901		3183
1902	Return a hashref for use by the extension C<$family>, which can be	3184	$facedata = Coro::Storable::thaw $facedata;
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905		3185
1906	=item $value = cf::db_get $family => $key	3186	$facedata->{version} == 2
		3187	or cf::cleanup "$path: version mismatch, cannot proceed.";
1907		3188
1908	Returns a single value from the database	3189	# patch in the exptable
1909		3190	$facedata->{resource}{"res/exp_table"} = {
1910	=item cf::db_put $family => $hashref	3191	type => FT_RSRC,
1911		3192	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}
1938
1939	my $pid;
1940
1941	sub db_save() {
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});	3193	};
		3194	cf::cede_to_tick;
1961		3195
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}	3196	{
		3197	my $faces = $facedata->{faceinfo};
1966		3198
1967	sub db_get($;$) {	3199	while (my ($face, $info) = each %$faces) {
1968	@_ >= 2	3200	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972		3201
1973	sub db_put($$;$) {	3202	cf::face::set_visibility $idx, $info->{visibility};
1974	if (@_ >= 3) {	3203	cf::face::set_magicmap $idx, $info->{magicmap};
1975	$DB->{$_[0]}{$_[1]} = $_[2];	3204	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1976	} else {	3205	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981		3206
1982	cf::global->attach (	3207	cf::cede_to_tick;
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	3208	}
1987	);
1988	}
1989		3209
1990	#############################################################################	3210	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	3211	next unless $info->{smooth};
1992		3212
1993	sub cfg_load {	3213	my $idx = cf::face::find $face
		3214	or next;
		3215
		3216	if (my $smooth = cf::face::find $info->{smooth}) {
		3217	cf::face::set_smooth $idx, $smooth;
		3218	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3219	} else {
		3220	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3221	}
		3222
		3223	cf::cede_to_tick;
		3224	}
		3225	}
		3226
		3227	{
		3228	my $anims = $facedata->{animinfo};
		3229
		3230	while (my ($anim, $info) = each %$anims) {
		3231	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3232	cf::cede_to_tick;
		3233	}
		3234
		3235	cf::anim::invalidate_all; # d'oh
		3236	}
		3237
		3238	{
		3239	# TODO: for gcfclient pleasure, we should give resources
		3240	# that gcfclient doesn't grok a >10000 face index.
		3241	my $res = $facedata->{resource};
		3242
		3243	while (my ($name, $info) = each %$res) {
		3244	if (defined $info->{type}) {
		3245	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3246	my $data;
		3247
		3248	if ($info->{type} & 1) {
		3249	# prepend meta info
		3250
		3251	my $meta = $enc->encode ({
		3252	name => $name,
		3253	%{ $info->{meta} || {} },
		3254	});
		3255
		3256	$data = pack "(w/a*)*", $meta, $info->{data};
		3257	} else {
		3258	$data = $info->{data};
		3259	}
		3260
		3261	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3262	cf::face::set_type $idx, $info->{type};
		3263	} else {
		3264	$RESOURCE{$name} = $info;
		3265	}
		3266
		3267	cf::cede_to_tick;
		3268	}
		3269	}
		3270
		3271	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3272
		3273	1
		3274	}
		3275
		3276	cf::global->attach (on_resource_update => sub {
		3277	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3278	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3279
		3280	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3281	my $sound = $soundconf->{compat}[$_]
		3282	or next;
		3283
		3284	my $face = cf::face::find "sound/$sound->[1]";
		3285	cf::sound::set $sound->[0] => $face;
		3286	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3287	}
		3288
		3289	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3290	my $face = cf::face::find "sound/$v";
		3291	cf::sound::set $k => $face;
		3292	}
		3293	}
		3294	});
		3295
		3296	register_exticmd fx_want => sub {
		3297	my ($ns, $want) = @_;
		3298
		3299	while (my ($k, $v) = each %$want) {
		3300	$ns->fx_want ($k, $v);
		3301	}
		3302	};
		3303
		3304	sub load_resource_file($) {
		3305	my $guard = lock_acquire "load_resource_file";
		3306
		3307	my $status = load_resource_file_ $_[0];
		3308	get_slot 0.1, 100;
		3309	cf::arch::commit_load;
		3310
		3311	$status
		3312	}
		3313
		3314	sub reload_regions {
		3315	# HACK to clear player env face cache, we need some signal framework
		3316	# for this (global event?)
		3317	%ext::player_env::MUSIC_FACE_CACHE = ();
		3318
		3319	load_resource_file "$MAPDIR/regions"
		3320	or die "unable to load regions file\n";
		3321
		3322	for (cf::region::list) {
		3323	$_->{match} = qr/$_->{match}/
		3324	if exists $_->{match};
		3325	}
		3326	}
		3327
		3328	sub reload_facedata {
		3329	load_facedata "$DATADIR/facedata"
		3330	or die "unable to load facedata\n";
		3331	}
		3332
		3333	sub reload_archetypes {
		3334	load_resource_file "$DATADIR/archetypes"
		3335	or die "unable to load archetypes\n";
		3336	}
		3337
		3338	sub reload_treasures {
		3339	load_resource_file "$DATADIR/treasures"
		3340	or die "unable to load treasurelists\n";
		3341	}
		3342
		3343	sub reload_resources {
		3344	warn "reloading resource files...\n";
		3345
		3346	reload_facedata;
		3347	reload_archetypes;
		3348	reload_regions;
		3349	reload_treasures;
		3350
		3351	warn "finished reloading resource files\n";
		3352	}
		3353
		3354	sub reload_config {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	3355	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	3356	or return;
1996		3357
1997	local $/;	3358	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	3359	*CFG = YAML::Load <$fh>;
1999		3360
2000	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3361	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2001		3362
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3363	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3364	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		3365
2005	if (exists $CFG{mlockall}) {	3366	if (exists $CFG{mlockall}) {
2006	eval {	3367	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	3368	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	3369	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	3370	};
2010	warn $@ if $@;	3371	warn $@ if $@;
2011	}	3372	}
2012	}	3373	}
2013		3374
		3375	sub pidfile() {
		3376	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3377	or die "$PIDFILE: $!";
		3378	flock $fh, &Fcntl::LOCK_EX
		3379	or die "$PIDFILE: flock: $!";
		3380	$fh
		3381	}
		3382
		3383	# make sure only one server instance is running at any one time
		3384	sub atomic {
		3385	my $fh = pidfile;
		3386
		3387	my $pid = <$fh>;
		3388	kill 9, $pid if $pid > 0;
		3389
		3390	seek $fh, 0, 0;
		3391	print $fh $$;
		3392	}
		3393
2014	sub main {	3394	sub main {
		3395	cf::init_globals; # initialise logging
		3396
		3397	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3398	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3399	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3400	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3401
		3402	cf::init_experience;
		3403	cf::init_anim;
		3404	cf::init_attackmess;
		3405	cf::init_dynamic;
		3406	cf::init_block;
		3407
		3408	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3409
2015	# we must not ever block the main coroutine	3410	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	3411	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3412	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2018	async { Event::one_event };	3413	(async {
		3414	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3415	EV::loop EV::LOOP_ONESHOT;
		3416	})->prio (Coro::PRIO_MAX);
2019	};	3417	};
2020		3418
2021	cfg_load;	3419	evthread_start IO::AIO::poll_fileno;
2022	db_load;	3420
		3421	cf::sync_job {
		3422	reload_resources;
		3423	reload_config;
		3424	db_init;
		3425
		3426	cf::load_settings;
		3427	cf::load_materials;
		3428	cf::init_uuid;
		3429	cf::init_signals;
		3430	cf::init_commands;
		3431	cf::init_skills;
		3432
		3433	cf::init_beforeplay;
		3434
		3435	atomic;
		3436
2023	load_extensions;	3437	load_extensions;
		3438
		3439	utime time, time, $RUNTIMEFILE;
		3440
		3441	# no (long-running) fork's whatsoever before this point(!)
		3442	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3443
		3444	(pop @POST_INIT)->(0) while @POST_INIT;
		3445	};
		3446
2024	Event::loop;	3447	EV::loop;
2025	}	3448	}
2026		3449
2027	#############################################################################	3450	#############################################################################
2028	# initialisation	3451	# initialisation and cleanup
2029		3452
		3453	# install some emergency cleanup handlers
		3454	BEGIN {
		3455	our %SIGWATCHER = ();
		3456	for my $signal (qw(INT HUP TERM)) {
		3457	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3458	cf::cleanup "SIG$signal";
		3459	};
		3460	}
		3461	}
		3462
		3463	sub write_runtime_sync {
		3464	# first touch the runtime file to show we are still running:
		3465	# the fsync below can take a very very long time.
		3466
		3467	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3468
		3469	my $guard = cf::lock_acquire "write_runtime";
		3470
		3471	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3472	or return;
		3473
		3474	my $value = $cf::RUNTIME + 90 + 10;
		3475	# 10 is the runtime save interval, for a monotonic clock
		3476	# 60 allows for the watchdog to kill the server.
		3477
		3478	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3479	and return;
		3480
		3481	# always fsync - this file is important
		3482	aio_fsync $fh
		3483	and return;
		3484
		3485	# touch it again to show we are up-to-date
		3486	aio_utime $fh, undef, undef;
		3487
		3488	close $fh
		3489	or return;
		3490
		3491	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3492	and return;
		3493
		3494	warn "runtime file written.\n";
		3495
		3496	1
		3497	}
		3498
		3499	our $uuid_lock;
		3500	our $uuid_skip;
		3501
		3502	sub write_uuid_sync($) {
		3503	$uuid_skip ||= $_[0];
		3504
		3505	return if $uuid_lock;
		3506	local $uuid_lock = 1;
		3507
		3508	my $uuid = "$LOCALDIR/uuid";
		3509
		3510	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3511	or return;
		3512
		3513	my $value = uuid_seq uuid_cur;
		3514
		3515	unless ($value) {
		3516	warn "cowardly refusing to write zero uuid value!\n";
		3517	return;
		3518	}
		3519
		3520	my $value = uuid_str $value + $uuid_skip;
		3521	$uuid_skip = 0;
		3522
		3523	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3524	and return;
		3525
		3526	# always fsync - this file is important
		3527	aio_fsync $fh
		3528	and return;
		3529
		3530	close $fh
		3531	or return;
		3532
		3533	aio_rename "$uuid~", $uuid
		3534	and return;
		3535
		3536	warn "uuid file written ($value).\n";
		3537
		3538	1
		3539
		3540	}
		3541
		3542	sub write_uuid($$) {
		3543	my ($skip, $sync) = @_;
		3544
		3545	$sync ? write_uuid_sync $skip
		3546	: async { write_uuid_sync $skip };
		3547	}
		3548
		3549	sub emergency_save() {
		3550	my $freeze_guard = cf::freeze_mainloop;
		3551
		3552	warn "emergency_perl_save: enter\n";
		3553
		3554	cf::sync_job {
		3555	# this is a trade-off: we want to be very quick here, so
		3556	# save all maps without fsync, and later call a global sync
		3557	# (which in turn might be very very slow)
		3558	local $USE_FSYNC = 0;
		3559
		3560	# use a peculiar iteration method to avoid tripping on perl
		3561	# refcount bugs in for. also avoids problems with players
		3562	# and maps saved/destroyed asynchronously.
		3563	warn "emergency_perl_save: begin player save\n";
		3564	for my $login (keys %cf::PLAYER) {
		3565	my $pl = $cf::PLAYER{$login} or next;
		3566	$pl->valid or next;
		3567	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3568	$pl->save;
		3569	}
		3570	warn "emergency_perl_save: end player save\n";
		3571
		3572	warn "emergency_perl_save: begin map save\n";
		3573	for my $path (keys %cf::MAP) {
		3574	my $map = $cf::MAP{$path} or next;
		3575	$map->valid or next;
		3576	$map->save;
		3577	}
		3578	warn "emergency_perl_save: end map save\n";
		3579
		3580	warn "emergency_perl_save: begin database checkpoint\n";
		3581	BDB::db_env_txn_checkpoint $DB_ENV;
		3582	warn "emergency_perl_save: end database checkpoint\n";
		3583
		3584	warn "emergency_perl_save: begin write uuid\n";
		3585	write_uuid_sync 1;
		3586	warn "emergency_perl_save: end write uuid\n";
		3587	};
		3588
		3589	warn "emergency_perl_save: starting sync()\n";
		3590	IO::AIO::aio_sync sub {
		3591	warn "emergency_perl_save: finished sync()\n";
		3592	};
		3593
		3594	warn "emergency_perl_save: leave\n";
		3595	}
		3596
		3597	sub post_cleanup {
		3598	my ($make_core) = @_;
		3599
		3600	warn Carp::longmess "post_cleanup backtrace"
		3601	if $make_core;
		3602
		3603	my $fh = pidfile;
		3604	unlink $PIDFILE if <$fh> == $$;
		3605	}
		3606
		3607	# a safer delete_package, copied from Symbol
		3608	sub clear_package($) {
		3609	my $pkg = shift;
		3610
		3611	# expand to full symbol table name if needed
		3612	unless ($pkg =~ /^main::.*::$/) {
		3613	$pkg = "main$pkg" if $pkg =~ /^::/;
		3614	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3615	$pkg .= '::' unless $pkg =~ /::$/;
		3616	}
		3617
		3618	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3619	my $stem_symtab = *{$stem}{HASH};
		3620
		3621	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3622	or return;
		3623
		3624	# clear all symbols
		3625	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3626	for my $name (keys %$leaf_symtab) {
		3627	_gv_clear *{"$pkg$name"};
		3628	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3629	}
		3630	warn "cleared package $pkg\n";#d#
		3631	}
		3632
2030	sub reload() {	3633	sub do_reload_perl() {
2031	# can/must only be called in main	3634	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	3635	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	3636	warn "can only reload from main coroutine";
2034	return;	3637	return;
2035	}	3638	}
2036		3639
		3640	return if $RELOAD++;
		3641
		3642	my $t1 = EV::time;
		3643
		3644	while ($RELOAD) {
2037	warn "reloading...";	3645	warn "reloading...";
2038		3646
2039	my $guard = freeze_mainloop;	3647	warn "entering sync_job";
		3648
		3649	cf::sync_job {
		3650	cf::write_runtime_sync; # external watchdog should not bark
2040	cf::emergency_save;	3651	cf::emergency_save;
		3652	cf::write_runtime_sync; # external watchdog should not bark
2041		3653
2042	eval {	3654	warn "syncing database to disk";
		3655	BDB::db_env_txn_checkpoint $DB_ENV;
		3656
2043	# if anything goes wrong in here, we should simply crash as we already saved	3657	# if anything goes wrong in here, we should simply crash as we already saved
2044		3658
2045	# cancel all watchers	3659	warn "flushing outstanding aio requests";
2046	for (Event::all_watchers) {	3660	while (IO::AIO::nreqs || BDB::nreqs) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	3661	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2048	}
2049
2050	# cancel all extension coros
2051	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();
2053
2054	# unload all extensions
2055	for (@exts) {
2056	warn "unloading <$_>";
2057	unload_extension $_;
2058	}
2059
2060	# unload all modules loaded from $LIBDIR
2061	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063
2064	warn "removing <$k>";
2065	delete $INC{$k};
2066
2067	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;
2069
2070	if (my $cb = $k->can ("unload_module")) {
2071	$cb->();
2072	}	3662	}
2073		3663
2074	Symbol::delete_package $k;	3664	warn "cancelling all extension coros";
		3665	$_->cancel for values %EXT_CORO;
		3666	%EXT_CORO = ();
		3667
		3668	warn "removing commands";
		3669	%COMMAND = ();
		3670
		3671	warn "removing ext/exti commands";
		3672	%EXTCMD = ();
		3673	%EXTICMD = ();
		3674
		3675	warn "unloading/nuking all extensions";
		3676	for my $pkg (@EXTS) {
		3677	warn "... unloading $pkg";
		3678
		3679	if (my $cb = $pkg->can ("unload")) {
		3680	eval {
		3681	$cb->($pkg);
		3682	1
		3683	} or warn "$pkg unloaded, but with errors: $@";
		3684	}
		3685
		3686	warn "... clearing $pkg";
		3687	clear_package $pkg;
2075	}	3688	}
2076		3689
2077	# sync database to disk	3690	warn "unloading all perl modules loaded from $LIBDIR";
2078	cf::db_sync;	3691	while (my ($k, $v) = each %INC) {
2079	IO::AIO::flush;	3692	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2080		3693
		3694	warn "... unloading $k";
		3695	delete $INC{$k};
		3696
		3697	$k =~ s/\.pm$//;
		3698	$k =~ s/\//::/g;
		3699
		3700	if (my $cb = $k->can ("unload_module")) {
		3701	$cb->();
		3702	}
		3703
		3704	clear_package $k;
		3705	}
		3706
2081	# get rid of safe::, as good as possible	3707	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3708	clear_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3709	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3710
2085	# remove register_script_function callbacks	3711	warn "unloading cf.pm \"a bit\"";
2086	# TODO
2087
2088	# unload cf.pm "a bit"
2089	delete $INC{"cf.pm"};	3712	delete $INC{"cf.pm"};
		3713	delete $INC{"cf/pod.pm"};
2090		3714
2091	# don't, removes xs symbols, too,	3715	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3716	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3717	#clear_package __PACKAGE__;
2094		3718
2095	# reload cf.pm	3719	warn "unload completed, starting to reload now";
		3720
2096	warn "reloading cf.pm";	3721	warn "reloading cf.pm";
2097	require cf;	3722	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3723	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3724
2100	# load config and database again	3725	warn "loading config and database again";
2101	cf::cfg_load;	3726	cf::reload_config;
2102	cf::db_load;
2103		3727
2104	# load extensions
2105	warn "load extensions";	3728	warn "loading extensions";
2106	cf::load_extensions;	3729	cf::load_extensions;
2107		3730
2108	# reattach attachments to objects	3731	if ($REATTACH_ON_RELOAD) {
		3732	warn "reattaching attachments to objects/players";
		3733	_global_reattach; # objects, sockets
		3734	warn "reattaching attachments to maps";
		3735	reattach $_ for values %MAP;
		3736	warn "reattaching attachments to players";
		3737	reattach $_ for values %PLAYER;
		3738	}
		3739
		3740	warn "running post_init jobs";
		3741	(pop @POST_INIT)->(1) while @POST_INIT;
		3742
		3743	warn "leaving sync_job";
		3744
		3745	1
		3746	} or do {
		3747	warn $@;
		3748	cf::cleanup "error while reloading, exiting.";
		3749	};
		3750
2109	warn "reattach";	3751	warn "reloaded";
2110	_global_reattach;	3752	--$RELOAD;
		3753	}
		3754
		3755	$t1 = EV::time - $t1;
		3756	warn "reload completed in ${t1}s\n";
		3757	};
		3758
		3759	our $RELOAD_WATCHER; # used only during reload
		3760
		3761	sub reload_perl() {
		3762	# doing reload synchronously and two reloads happen back-to-back,
		3763	# coro crashes during coro_state_free->destroy here.
		3764
		3765	$RELOAD_WATCHER ||= cf::async {
		3766	Coro::AIO::aio_wait cache_extensions;
		3767
		3768	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3769	do_reload_perl;
		3770	undef $RELOAD_WATCHER;
		3771	};
2111	};	3772	};
2112
2113	if ($@) {
2114	warn $@;
2115	warn "error while reloading, exiting.";
2116	exit 1;
2117	}
2118
2119	warn "reloaded successfully";
2120	};
2121
2122	#############################################################################
2123
2124	unless ($LINK_MAP) {
2125	$LINK_MAP = cf::map::new;
2126
2127	$LINK_MAP->width (41);
2128	$LINK_MAP->height (41);
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,
2137	cb => sub {
2138	$_[0]->w->cancel;
2139
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});
2158
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3773	}
2164
2165	register "<global>", __PACKAGE__;
2166		3774
2167	register_command "reload" => sub {	3775	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3776	my ($who, $arg) = @_;
2169		3777
2170	if ($who->flag (FLAG_WIZ)) {	3778	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3779	$who->message ("reloading server.");
		3780	async {
		3781	$Coro::current->{desc} = "perl_reload";
		3782	reload_perl;
		3783	};
2174	}	3784	}
2175	};	3785	};
2176		3786
2177	unshift @INC, $LIBDIR;	3787	unshift @INC, $LIBDIR;
2178		3788
2179	$TICK_WATCHER = Event->timer (	3789	my $bug_warning = 0;
2180	reentrant => 0,	3790
2181	prio => 0,	3791	our @WAIT_FOR_TICK;
2182	at => $NEXT_TICK || $TICK,	3792	our @WAIT_FOR_TICK_BEGIN;
2183	data => WF_AUTOCANCEL,	3793
2184	cb => sub {	3794	sub wait_for_tick {
		3795	return if tick_inhibit || $Coro::current == $Coro::main;
		3796
		3797	my $signal = new Coro::Signal;
		3798	push @WAIT_FOR_TICK, $signal;
		3799	$signal->wait;
		3800	}
		3801
		3802	sub wait_for_tick_begin {
		3803	return if tick_inhibit || $Coro::current == $Coro::main;
		3804
		3805	my $signal = new Coro::Signal;
		3806	push @WAIT_FOR_TICK_BEGIN, $signal;
		3807	$signal->wait;
		3808	}
		3809
		3810	sub tick {
		3811	if ($Coro::current != $Coro::main) {
		3812	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3813	unless ++$bug_warning > 10;
		3814	return;
		3815	}
		3816
2185	cf::server_tick; # one server iteration	3817	cf::server_tick; # one server iteration
2186	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;
2188		3818
2189	# if we are delayed by four ticks or more, skip them all	3819	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3820	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2191		3821	Coro::async_pool {
2192	$TICK_WATCHER->at ($NEXT_TICK);	3822	$Coro::current->{desc} = "runtime saver";
2193	$TICK_WATCHER->start;
2194	},
2195	);
2196
2197	IO::AIO::max_poll_time $TICK * 0.2;
2198
2199	Event->io (
2200	fd => IO::AIO::poll_fileno,
2201	poll => 'r',
2202	prio => 5,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,
2209	after => 0,
2210	interval => 10,
2211	cb => sub {
2212	(Coro::unblock_sub {
2213	write_runtime	3823	write_runtime_sync
2214	or warn "ERROR: unable to write runtime file: $!";	3824	or warn "ERROR: unable to write runtime file: $!";
2215	})->();	3825	};
2216	},	3826	}
2217	);	3827
		3828	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3829	$sig->send;
		3830	}
		3831	while (my $sig = shift @WAIT_FOR_TICK) {
		3832	$sig->send;
		3833	}
		3834
		3835	$LOAD = ($NOW - $TICK_START) / $TICK;
		3836	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3837
		3838	if (0) {
		3839	if ($NEXT_TICK) {
		3840	my $jitter = $TICK_START - $NEXT_TICK;
		3841	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3842	warn "jitter $JITTER\n";#d#
		3843	}
		3844	}
		3845	}
		3846
		3847	{
		3848	# configure BDB
		3849
		3850	BDB::min_parallel 8;
		3851	BDB::max_poll_reqs $TICK * 0.1;
		3852	$AnyEvent::BDB::WATCHER->priority (1);
		3853
		3854	unless ($DB_ENV) {
		3855	$DB_ENV = BDB::db_env_create;
		3856	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3857	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3858	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3859	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3860	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3861
		3862	cf::sync_job {
		3863	eval {
		3864	BDB::db_env_open
		3865	$DB_ENV,
		3866	$BDBDIR,
		3867	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3868	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3869	0666;
		3870
		3871	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3872	};
		3873
		3874	cf::cleanup "db_env_open(db): $@" if $@;
		3875	};
		3876	}
		3877
		3878	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3879	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3880	};
		3881	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3882	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3883	};
		3884	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3885	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3886	};
		3887	}
		3888
		3889	{
		3890	# configure IO::AIO
		3891
		3892	IO::AIO::min_parallel 8;
		3893	IO::AIO::max_poll_time $TICK * 0.1;
		3894	undef $AnyEvent::AIO::WATCHER;
		3895	}
		3896
		3897	my $_log_backtrace;
		3898
		3899	sub _log_backtrace {
		3900	my ($msg, @addr) = @_;
		3901
		3902	$msg =~ s/\n//;
		3903
		3904	# limit the # of concurrent backtraces
		3905	if ($_log_backtrace < 2) {
		3906	++$_log_backtrace;
		3907	my $perl_bt = Carp::longmess $msg;
		3908	async {
		3909	$Coro::current->{desc} = "abt $msg";
		3910
		3911	my @bt = fork_call {
		3912	@addr = map { sprintf "%x", $_ } @addr;
		3913	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3914	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3915	or die "addr2line: $!";
		3916
		3917	my @funcs;
		3918	my @res = <$fh>;
		3919	chomp for @res;
		3920	while (@res) {
		3921	my ($func, $line) = splice @res, 0, 2, ();
		3922	push @funcs, "[$func] $line";
		3923	}
		3924
		3925	@funcs
		3926	};
		3927
		3928	LOG llevInfo, "[ABT] $perl_bt\n";
		3929	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3930	LOG llevInfo, "[ABT] $_\n" for @bt;
		3931	--$_log_backtrace;
		3932	};
		3933	} else {
		3934	LOG llevInfo, "[ABT] $msg\n";
		3935	LOG llevInfo, "[ABT] [suppressed]\n";
		3936	}
		3937	}
		3938
		3939	# load additional modules
		3940	use cf::pod;
2218		3941
2219	END { cf::emergency_save }	3942	END { cf::emergency_save }
2220		3943
2221	1	3944	1
2222		3945

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