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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.185 by root, Fri Jan 19 23:32:52 2007 UTC vs.
Revision 1.470 by root, Sun Apr 26 19:42:45 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.4 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		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
28		76
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		78
36	our %COMMAND = ();	79	our %COMMAND = ();
37	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
38		81
39	our @EXTS = (); # list of extension package names	82	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	85	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	86	our %EXT_MAP = (); # pluggable maps
43		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	89	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		90
47	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	92	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	93	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	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
51	our $NEXT_TICK;	109	our $NEXT_TICK;
52	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default on
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
53		118
54	our %CFG;	119	our %CFG;
55		120
56	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
58		124
59	our %PLAYER; # all users	125	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	126	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	127	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		128
67	# used to convert map paths into valid unix filenames by replacing / by ∕	129	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		131
		132	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		133	our $LOADAVG; # same thing, but with alpha-smoothing
		134	our $JITTER; # average jitter
		135	our $TICK_START; # for load detecting purposes
		136
		137	our @POST_INIT;
		138
		139	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
		140
70	binmode STDOUT;	141	binmode STDOUT;
71	binmode STDERR;	142	binmode STDERR;
72		143
73	# read virtual server time, if available	144	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
78	}	149	}
79		150
80	mkdir cf::localdir;	151	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	152
82	mkdir cf::localdir . "/" . cf::tmpdir;	153	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	154	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		155
86	our $EMERGENCY_POSITION;	156	our $EMERGENCY_POSITION;
		157
		158	sub cf::map::normalise;
87		159
88	#############################################################################	160	#############################################################################
89		161
90	=head2 GLOBAL VARIABLES	162	=head2 GLOBAL VARIABLES
91		163
…		…
98	=item $cf::RUNTIME	170	=item $cf::RUNTIME
99		171
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	172	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	173	every server tick.
102		174
103	=item $cf::LIBDIR	175	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		176	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		177	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		178
105	The perl library directory, where extensions and cf-specific modules can	179	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	180	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		181	unique-items directory, player file directory, random maps directory and
		182	database environment.
107		183
108	=item $cf::NOW	184	=item $cf::NOW
109		185
110	The time of the last (current) server tick.	186	The time of the last (current) server tick.
111		187
112	=item $cf::TICK	188	=item $cf::TICK
113		189
114	The interval between server ticks, in seconds.	190	The interval between server ticks, in seconds.
115		191
		192	=item $cf::LOADAVG
		193
		194	The current CPU load on the server (alpha-smoothed), as a value between 0
		195	(none) and 1 (overloaded), indicating how much time is spent on processing
		196	objects per tick. Healthy values are < 0.5.
		197
		198	=item $cf::LOAD
		199
		200	The raw value load value from the last tick.
		201
116	=item %cf::CFG	202	=item %cf::CFG
117		203
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	204	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	205	from wherever your confdir points to.
120		206
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	207	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		208
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	209	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	210	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	211	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	212
		213	=item @cf::INVOKE_RESULTS
		214
		215	This array contains the results of the last C<invoke ()> call. When
		216	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		217	that call.
127		218
128	=back	219	=back
129		220
130	=cut	221	=cut
131		222
132	BEGIN {	223	BEGIN {
133	*CORE::GLOBAL::warn = sub {	224	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	225	my $msg = join "", @_;
135	utf8::encode $msg;
136		226
137	$msg .= "\n"	227	$msg .= "\n"
138	unless $msg =~ /\n$/;	228	unless $msg =~ /\n$/;
139		229
		230	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		231
140	LOG llevError, $msg;	232	LOG llevError, $msg;
141	};	233	};
142	}	234	}
		235
		236	$Coro::State::DIEHOOK = sub {
		237	return unless $^S eq 0; # "eq", not "=="
		238
		239	if ($Coro::current == $Coro::main) {#d#
		240	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		241	return;#d#
		242	}#d#
		243
		244	# kill coroutine otherwise
		245	warn Carp::longmess $_[0];
		246	Coro::terminate
		247	};
		248
		249	$SIG{__DIE__} = sub { }; #d#?
143		250
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	251	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	252	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	253	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	254	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	255	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		256	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	257	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		258
151	# we bless all objects into (empty) derived classes to force a method lookup	259	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	260	# within the Safe compartment.
153	for my $pkg (qw(	261	for my $pkg (qw(
154	cf::global cf::attachable	262	cf::global cf::attachable
155	cf::object cf::object::player	263	cf::object cf::object::player
156	cf::client cf::player	264	cf::client cf::player
157	cf::arch cf::living	265	cf::arch cf::living
		266	cf::map cf::mapspace
158	cf::map cf::party cf::region	267	cf::party cf::region
159	)) {	268	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	269	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	270	}
163		271
164	$Event::DIED = sub {	272	$EV::DIED = sub {
165	warn "error in event callback: @_";	273	warn "error in event callback: @_";
166	};	274	};
		275
		276	#############################################################################
167		277
168	=head2 UTILITY FUNCTIONS	278	=head2 UTILITY FUNCTIONS
169		279
170	=over 4	280	=over 4
171		281
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	300	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	301	$d
192	} || "[unable to dump $_[0]: '$@']";	302	} || "[unable to dump $_[0]: '$@']";
193	}	303	}
194		304
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	305	=item $ref = cf::decode_json $json
198		306
199	Converts a JSON string into the corresponding perl data structure.	307	Converts a JSON string into the corresponding perl data structure.
200		308
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	309	=item $json = cf::encode_json $ref
209		310
210	Converts a perl data structure into its JSON representation.	311	Converts a perl data structure into its JSON representation.
211		312
212	=cut	313	=cut
213		314
214	sub to_json($) {	315	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	316
216	JSON::Syck::Dump $_[0]	317	sub encode_json($) { $json_coder->encode ($_[0]) }
		318	sub decode_json($) { $json_coder->decode ($_[0]) }
		319
		320	=item cf::post_init { BLOCK }
		321
		322	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		323	but I<before> the server starts ticking again.
		324
		325	The cdoeblock will have a single boolean argument to indicate whether this
		326	is a reload or not.
		327
		328	=cut
		329
		330	sub post_init(&) {
		331	push @POST_INIT, shift;
217	}	332	}
218		333
219	=item cf::lock_wait $string	334	=item cf::lock_wait $string
220		335
221	Wait until the given lock is available. See cf::lock_acquire.	336	Wait until the given lock is available. See cf::lock_acquire.
222		337
223	=item my $lock = cf::lock_acquire $string	338	=item my $lock = cf::lock_acquire $string
224		339
225	Wait until the given lock is available and then acquires it and returns	340	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	341	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	342	for example when the coroutine gets canceled), the lock is automatically
228	returned.	343	returned.
229		344
		345	Locks are *not* recursive, locking from the same coro twice results in a
		346	deadlocked coro.
		347
230	Lock names should begin with a unique identifier (for example, cf::map::find	348	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	349	uses map_find and cf::map::load uses map_load).
232		350
233	=cut	351	=item $locked = cf::lock_active $string
234		352
235	our %LOCK;	353	Return true if the lock is currently active, i.e. somebody has locked it.
		354
		355	=cut
		356
		357	our $LOCKS = new Coro::SemaphoreSet;
236		358
237	sub lock_wait($) {	359	sub lock_wait($) {
238	my ($key) = @_;	360	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	361	}
246		362
247	sub lock_acquire($) {	363	sub lock_acquire($) {
248	my ($key) = @_;	364	$LOCKS->guard ($_[0])
		365	}
249		366
250	# wait, to be sure we are not locked	367	sub lock_active($) {
251	lock_wait $key;	368	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	369	}
260		370
261	sub freeze_mainloop {	371	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	372	tick_inhibit_inc;
263		373
264	my $guard = Coro::guard {	374	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	375	}
266	$WRITE_RUNTIME_WATCHER->start;	376
		377	=item cf::periodic $interval, $cb
		378
		379	Like EV::periodic, but randomly selects a starting point so that the actions
		380	get spread over timer.
		381
		382	=cut
		383
		384	sub periodic($$) {
		385	my ($interval, $cb) = @_;
		386
		387	my $start = rand List::Util::min 180, $interval;
		388
		389	EV::periodic $start, $interval, 0, $cb
		390	}
		391
		392	=item cf::get_slot $time[, $priority[, $name]]
		393
		394	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		395	This call blocks and returns only when you have at least C<$time> seconds
		396	of cpu time till the next tick. The slot is only valid till the next cede.
		397
		398	The optional C<$name> can be used to identify the job to run. It might be
		399	used for statistical purposes and should identify the same time-class.
		400
		401	Useful for short background jobs.
		402
		403	=cut
		404
		405	our @SLOT_QUEUE;
		406	our $SLOT_QUEUE;
		407
		408	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		409	$SLOT_QUEUE = Coro::async {
		410	$Coro::current->desc ("timeslot manager");
		411
		412	my $signal = new Coro::Signal;
		413
		414	while () {
		415	next_job:
		416	my $avail = cf::till_tick;
		417	if ($avail > 0.01) {
		418	for (0 .. $#SLOT_QUEUE) {
		419	if ($SLOT_QUEUE[$_][0] < $avail) {
		420	my $job = splice @SLOT_QUEUE, $_, 1, ();
		421	$job->[2]->send;
		422	Coro::cede;
		423	goto next_job;
		424	}
		425	}
		426	}
		427
		428	if (@SLOT_QUEUE) {
		429	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		430	push @cf::WAIT_FOR_TICK, $signal;
		431	$signal->wait;
		432	} else {
		433	Coro::schedule;
		434	}
267	};	435	}
268	$WRITE_RUNTIME_WATCHER->stop;	436	};
269	$TICK_WATCHER->stop;	437
270	$guard	438	sub get_slot($;$$) {
		439	return if tick_inhibit || $Coro::current == $Coro::main;
		440
		441	my ($time, $pri, $name) = @_;
		442
		443	$time = $TICK * .6 if $time > $TICK * .6;
		444	my $sig = new Coro::Signal;
		445
		446	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		447	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		448	$SLOT_QUEUE->ready;
		449	$sig->wait;
271	}	450	}
272		451
273	=item cf::async { BLOCK }	452	=item cf::async { BLOCK }
274		453
275	Currently the same as Coro::async_pool, meaning you cannot use	454	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		459
281	BEGIN { *async = \&Coro::async_pool }	460	BEGIN { *async = \&Coro::async_pool }
282		461
283	=item cf::sync_job { BLOCK }	462	=item cf::sync_job { BLOCK }
284		463
285	The design of crossfire+ requires that the main coro ($Coro::main) is	464	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	465	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	466	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		467	acceptable.
288		468
289	If it must be done, put the blocking parts into C<sync_job>. This will run	469	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	470	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	471	server will be frozen during this time, so the block should either finish
292	fast or be very important.	472	fast or be very important.
…		…
295		475
296	sub sync_job(&) {	476	sub sync_job(&) {
297	my ($job) = @_;	477	my ($job) = @_;
298		478
299	if ($Coro::current == $Coro::main) {	479	if ($Coro::current == $Coro::main) {
		480	my $time = EV::time;
		481
300	# this is the main coro, too bad, we have to block	482	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	483	# till the operation succeeds, freezing the server :/
302		484
303	# TODO: use suspend/resume instead	485	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	486
305	my $freeze_guard = freeze_mainloop;	487	my $freeze_guard = freeze_mainloop;
306		488
307	my $busy = 1;	489	my $busy = 1;
308	my @res;	490	my @res;
309		491
310	(async {	492	(async {
		493	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	494	@res = eval { $job->() };
312	warn $@ if $@;	495	warn $@ if $@;
313	undef $busy;	496	undef $busy;
314	})->prio (Coro::PRIO_MAX);	497	})->prio (Coro::PRIO_MAX);
315		498
316	while ($busy) {	499	while ($busy) {
317	Coro::cede or Event::one_event;	500	if (Coro::nready) {
		501	Coro::cede_notself;
		502	} else {
		503	EV::loop EV::LOOP_ONESHOT;
318	}	504	}
		505	}
		506
		507	my $time = EV::time - $time;
		508
		509	$TICK_START += $time; # do not account sync jobs to server load
319		510
320	wantarray ? @res : $res[0]	511	wantarray ? @res : $res[0]
321	} else {	512	} else {
322	# we are in another coroutine, how wonderful, everything just works	513	# we are in another coroutine, how wonderful, everything just works
323		514
…		…
343	$EXT_CORO{$coro+0} = $coro;	534	$EXT_CORO{$coro+0} = $coro;
344		535
345	$coro	536	$coro
346	}	537	}
347		538
348	sub write_runtime {	539	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		540
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	541	Executes the given code block with the given arguments in a seperate
352	or return;	542	process, returning the results. Everything must be serialisable with
		543	Coro::Storable. May, of course, block. Note that the executed sub may
		544	never block itself or use any form of event handling.
353		545
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	546	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		547
358	aio_fsync $fh	548	sub fork_call(&@) {
359	and return;	549	my ($cb, @args) = @_;
360		550
361	close $fh	551	# we seemingly have to make a local copy of the whole thing,
362	or return;	552	# otherwise perl prematurely frees the stuff :/
		553	# TODO: investigate and fix (likely this will be rather laborious)
363		554
364	aio_rename "$runtime~", $runtime	555	my @res = Coro::Util::fork_eval {
365	and return;	556	reset_signals;
		557	&$cb
		558	}, @args;
366		559
		560	wantarray ? @res : $res[-1]
		561	}
		562
		563	=item $coin = coin_from_name $name
		564
		565	=cut
		566
		567	our %coin_alias = (
		568	"silver" => "silvercoin",
		569	"silvercoin" => "silvercoin",
		570	"silvercoins" => "silvercoin",
		571	"gold" => "goldcoin",
		572	"goldcoin" => "goldcoin",
		573	"goldcoins" => "goldcoin",
		574	"platinum" => "platinacoin",
		575	"platinumcoin" => "platinacoin",
		576	"platinumcoins" => "platinacoin",
		577	"platina" => "platinacoin",
		578	"platinacoin" => "platinacoin",
		579	"platinacoins" => "platinacoin",
		580	"royalty" => "royalty",
		581	"royalties" => "royalty",
		582	);
		583
		584	sub coin_from_name($) {
		585	$coin_alias{$_[0]}
		586	? cf::arch::find $coin_alias{$_[0]}
		587	: undef
		588	}
		589
		590	=item $value = cf::db_get $family => $key
		591
		592	Returns a single value from the environment database.
		593
		594	=item cf::db_put $family => $key => $value
		595
		596	Stores the given C<$value> in the family. It can currently store binary
		597	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		598
		599	=item $db = cf::db_table "name"
		600
		601	Create and/or open a new database table. The string must not be "db" and must be unique
		602	within each server.
		603
		604	=cut
		605
		606	sub db_table($) {
		607	my ($name) = @_;
		608	my $db = BDB::db_create $DB_ENV;
		609
		610	eval {
		611	$db->set_flags (BDB::CHKSUM);
		612
		613	utf8::encode $name;
		614	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		615	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		616	cf::cleanup "db_open(db): $!" if $!;
		617	};
		618	cf::cleanup "db_open(db): $@" if $@;
		619
		620	$db
		621	}
		622
		623	our $DB;
		624
		625	sub db_init {
		626	cf::sync_job {
		627	$DB ||= db_table "db";
		628	};
		629	}
		630
		631	sub db_get($$) {
		632	my $key = "$_[0]/$_[1]";
		633
		634	cf::sync_job {
		635	BDB::db_get $DB, undef, $key, my $data;
		636
		637	$! ? ()
		638	: $data
367	1	639	}
		640	}
		641
		642	sub db_put($$$) {
		643	BDB::dbreq_pri 4;
		644	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		645	}
		646
		647	=item cf::cache $id => [$paths...], $processversion => $process
		648
		649	Generic caching function that returns the value of the resource $id,
		650	caching and regenerating as required.
		651
		652	This function can block.
		653
		654	=cut
		655
		656	sub cache {
		657	my ($id, $src, $processversion, $process) = @_;
		658
		659	my $meta =
		660	join "\x00",
		661	$processversion,
		662	map {
		663	aio_stat $_
		664	and Carp::croak "$_: $!";
		665
		666	($_, (stat _)[7,9])
		667	} @$src;
		668
		669	my $dbmeta = db_get cache => "$id/meta";
		670	if ($dbmeta ne $meta) {
		671	# changed, we may need to process
		672
		673	my @data;
		674	my $md5;
		675
		676	for (0 .. $#$src) {
		677	0 <= aio_load $src->[$_], $data[$_]
		678	or Carp::croak "$src->[$_]: $!";
		679	}
		680
		681	# if processing is expensive, check
		682	# checksum first
		683	if (1) {
		684	$md5 =
		685	join "\x00",
		686	$processversion,
		687	map {
		688	cf::cede_to_tick;
		689	($src->[$_], Digest::MD5::md5_hex $data[$_])
		690	} 0.. $#$src;
		691
		692
		693	my $dbmd5 = db_get cache => "$id/md5";
		694	if ($dbmd5 eq $md5) {
		695	db_put cache => "$id/meta", $meta;
		696
		697	return db_get cache => "$id/data";
		698	}
		699	}
		700
		701	my $t1 = Time::HiRes::time;
		702	my $data = $process->(\@data);
		703	my $t2 = Time::HiRes::time;
		704
		705	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		706
		707	db_put cache => "$id/data", $data;
		708	db_put cache => "$id/md5" , $md5;
		709	db_put cache => "$id/meta", $meta;
		710
		711	return $data;
		712	}
		713
		714	db_get cache => "$id/data"
		715	}
		716
		717	=item cf::datalog type => key => value, ...
		718
		719	Log a datalog packet of the given type with the given key-value pairs.
		720
		721	=cut
		722
		723	sub datalog($@) {
		724	my ($type, %kv) = @_;
		725	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	726	}
369		727
370	=back	728	=back
371		729
372	=cut	730	=cut
373		731
374	#############################################################################	732	#############################################################################
375		733
376	=head2 ATTACHABLE OBJECTS	734	=head2 ATTACHABLE OBJECTS
377		735
378	Many objects in crossfire are so-called attachable objects. That means you can	736	Many objects in deliantra are so-called attachable objects. That means you can
379	attach callbacks/event handlers (a collection of which is called an "attachment")	737	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	738	to it. All such attachable objects support the following methods.
381		739
382	In the following description, CLASS can be any of C<global>, C<object>	740	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	741	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	742	Deliantra).
385		743
386	=over 4	744	=over 4
387		745
388	=item $attachable->attach ($attachment, key => $value...)	746	=item $attachable->attach ($attachment, key => $value...)
389		747
…		…
433	=item cf::CLASS::attachment $name, ...	791	=item cf::CLASS::attachment $name, ...
434		792
435	Register an attachment by C<$name> through which attachable objects of the	793	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	794	given CLASS can refer to this attachment.
437		795
438	Some classes such as crossfire maps and objects can specify attachments	796	Some classes such as deliantra maps and objects can specify attachments
439	that are attached at load/instantiate time, thus the need for a name.	797	that are attached at load/instantiate time, thus the need for a name.
440		798
441	These calls expect any number of the following handler/hook descriptions:	799	These calls expect any number of the following handler/hook descriptions:
442		800
443	=over 4	801	=over 4
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	910	$registry = $CB_TYPE[$object_type] ||= [];
553		911
554	} elsif ($type eq "subtype") {	912	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	913	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	914	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	915	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		916
559	} elsif ($type eq "package") {	917	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	918	my $pkg = shift @arg;
561		919
562	while (my ($name, $id) = each %cb_id) {	920	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	949	_attach $registry, $klass, @attach;
592	}	950	}
593		951
594	$obj->{$name} = \%arg;	952	$obj->{$name} = \%arg;
595	} else {	953	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	954	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	955	}
598		956
599	$obj->{_attachment}{$name} = undef;	957	$obj->{_attachment}{$name} = undef;
600	}	958	}
601		959
…		…
603	if (ref $_[0]) {	961	if (ref $_[0]) {
604	_object_attach @_;	962	_object_attach @_;
605	} else {	963	} else {
606	_attach shift->_attach_registry, @_;	964	_attach shift->_attach_registry, @_;
607	}	965	}
		966	_recalc_want;
608	};	967	};
609		968
610	# all those should be optimised	969	# all those should be optimised
611	sub cf::attachable::detach {	970	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	971	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	974	delete $obj->{_attachment}{$name};
616	reattach ($obj);	975	reattach ($obj);
617	} else {	976	} else {
618	Carp::croak "cannot, currently, detach class attachments";	977	Carp::croak "cannot, currently, detach class attachments";
619	}	978	}
		979	_recalc_want;
620	};	980	};
621		981
622	sub cf::attachable::attached {	982	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	983	my ($obj, $name) = @_;
624		984
…		…
639	";	999	";
640	die if $@;	1000	die if $@;
641	}	1001	}
642		1002
643	our $override;	1003	our $override;
644	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1004	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
645		1005
646	sub override {	1006	sub override {
647	$override = 1;	1007	$override = 1;
648	@invoke_results = ();	1008	@INVOKE_RESULTS = (@_);
649	}	1009	}
650		1010
651	sub do_invoke {	1011	sub do_invoke {
652	my $event = shift;	1012	my $event = shift;
653	my $callbacks = shift;	1013	my $callbacks = shift;
654		1014
655	@invoke_results = ();	1015	@INVOKE_RESULTS = ();
656		1016
657	local $override;	1017	local $override;
658		1018
659	for (@$callbacks) {	1019	for (@$callbacks) {
660	eval { &{$_->[1]} };	1020	eval { &{$_->[1]} };
…		…
669	}	1029	}
670		1030
671	0	1031	0
672	}	1032	}
673		1033
674	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
675		1035
676	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
677		1037
678	Generate an object-specific event with the given arguments.	1038	Generate an object-specific event with the given arguments.
679		1039
680	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1040	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
681	removed in future versions), and there is no public API to access override	1041	removed in future versions), and there is no public API to access override
682	results (if you must, access C<@cf::invoke_results> directly).	1042	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		1043
684	=back	1044	=back
685		1045
686	=cut	1046	=cut
687		1047
688	#############################################################################	1048	#############################################################################
689	# object support	1049	# object support
		1050
		1051	sub _object_equal($$);
		1052	sub _object_equal($$) {
		1053	my ($a, $b) = @_;
		1054
		1055	return 0 unless (ref $a) eq (ref $b);
		1056
		1057	if ("HASH" eq ref $a) {
		1058	my @ka = keys %$a;
		1059	my @kb = keys %$b;
		1060
		1061	return 0 if @ka != @kb;
		1062
		1063	for (0 .. $#ka) {
		1064	return 0 unless $ka[$_] eq $kb[$_];
		1065	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1066	}
		1067
		1068	} elsif ("ARRAY" eq ref $a) {
		1069
		1070	return 0 if @$a != @$b;
		1071
		1072	for (0 .. $#$a) {
		1073	return 0 unless _object_equal $a->[$_], $b->[$_];
		1074	}
		1075
		1076	} elsif ($a ne $b) {
		1077	return 0;
		1078	}
		1079
		1080	1
		1081	}
		1082
		1083	our $SLOW_MERGES;#d#
		1084	sub _can_merge {
		1085	my ($ob1, $ob2) = @_;
		1086
		1087	++$SLOW_MERGES;#d#
		1088
		1089	# we do the slow way here
		1090	return _object_equal $ob1, $ob2
		1091	}
690		1092
691	sub reattach {	1093	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	1094	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	1095	my ($obj) = @_;
694		1096
		1097	# no longer needed after getting rid of delete_package?
695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1098	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
696		1099
697	my $registry = $obj->registry;	1100	my $registry = $obj->registry;
698		1101
699	@$registry = ();	1102	@$registry = ();
700		1103
…		…
715	cf::attachable->attach (	1118	cf::attachable->attach (
716	prio => -1000000,	1119	prio => -1000000,
717	on_instantiate => sub {	1120	on_instantiate => sub {
718	my ($obj, $data) = @_;	1121	my ($obj, $data) = @_;
719		1122
720	$data = from_json $data;	1123	$data = decode_json $data;
721		1124
722	for (@$data) {	1125	for (@$data) {
723	my ($name, $args) = @$_;	1126	my ($name, $args) = @$_;
724		1127
725	$obj->attach ($name, %{$args || {} });	1128	$obj->attach ($name, %{$args || {} });
…		…
741	sub object_freezer_save {	1144	sub object_freezer_save {
742	my ($filename, $rdata, $objs) = @_;	1145	my ($filename, $rdata, $objs) = @_;
743		1146
744	sync_job {	1147	sync_job {
745	if (length $$rdata) {	1148	if (length $$rdata) {
		1149	utf8::decode (my $decname = $filename);
746	warn sprintf "saving %s (%d,%d)\n",	1150	warn sprintf "saving %s (%d,%d)\n",
747	$filename, length $$rdata, scalar @$objs;	1151	$decname, length $$rdata, scalar @$objs;
748		1152
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1153	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1154	aio_chmod $fh, SAVE_MODE;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1155	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	1157	aio_close $fh;
754		1158
755	if (@$objs) {	1159	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1160	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1161	aio_chmod $fh, SAVE_MODE;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1162	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1163	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	1164	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	1165	aio_close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1166	aio_rename "$filename.pst~", "$filename.pst";
763	}	1167	}
764	} else {	1168	} else {
765	aio_unlink "$filename.pst";	1169	aio_unlink "$filename.pst";
766	}	1170	}
767		1171
768	aio_rename "$filename~", $filename;	1172	aio_rename "$filename~", $filename;
		1173
		1174	$filename =~ s%/[^/]+$%%;
		1175	aio_pathsync $filename if $cf::USE_FSYNC;
769	} else {	1176	} else {
770	warn "FATAL: $filename~: $!\n";	1177	warn "unable to save objects: $filename~: $!\n";
771	}	1178	}
772	} else {	1179	} else {
773	aio_unlink $filename;	1180	aio_unlink $filename;
774	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
775	}	1182	}
776	}	1183	};
777	}	1184	}
778		1185
779	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
780	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
781		1188
…		…
793	or return;	1200	or return;
794		1201
795	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
796	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
797	or return;	1204	or return;
		1205
798	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
799	}	1208	}
800		1209
		1210	utf8::decode (my $decname = $filename);
801	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
803	return ($data, $av);	1214	($data, $av)
804	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
805		1222
806	#############################################################################	1223	#############################################################################
807	# command handling &c	1224	# command handling &c
808		1225
809	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1240	}
824		1241
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1243
827	Register a callbackf ro execution when the client sends an extcmd packet.	1244	Register a callback for execution when the client sends an (synchronous)
		1245	extcmd packet. Ext commands will be processed in the order they are
		1246	received by the server, like other user commands. The first argument is
		1247	the logged-in player. Ext commands can only be processed after a player
		1248	has logged in successfully.
828		1249
829	If the callback returns something, it is sent back as if reply was being	1250	If the callback returns something, it is sent back as if reply was being
830	called.	1251	called.
831		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
832	=cut	1264	=cut
833		1265
834	sub register_extcmd {	1266	sub register_extcmd {
835	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
836		1268
837	$EXTCMD{$name} = $cb;	1269	$EXTCMD{$name} = $cb;
838	}	1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
		1276	}
		1277
		1278	use File::Glob ();
839		1279
840	cf::player->attach (	1280	cf::player->attach (
841	on_command => sub {	1281	on_command => sub {
842	my ($pl, $name, $params) = @_;	1282	my ($pl, $name, $params) = @_;
843		1283
…		…
851	cf::override;	1291	cf::override;
852	},	1292	},
853	on_extcmd => sub {	1293	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1294	my ($pl, $buf) = @_;
855		1295
856	my $msg = eval { from_json $buf };	1296	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1297
858	if (ref $msg) {	1298	if (ref $msg) {
		1299	my ($type, $reply, @payload) =
		1300	"ARRAY" eq ref $msg
		1301	? @$msg
		1302	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1303
		1304	my @reply;
		1305
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1306	if (my $cb = $EXTCMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1307	@reply = $cb->($pl, @payload);
861	$pl->ext_reply ($msg->{msgid}, %reply);
862	}
863	}	1308	}
		1309
		1310	$pl->ext_reply ($reply, @reply)
		1311	if $reply;
		1312
864	} else {	1313	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1314	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1315	}
867		1316
868	cf::override;	1317	cf::override;
869	},	1318	},
870	);	1319	);
871		1320
		1321	# "readahead" all extensions
872	sub load_extension {	1322	sub cache_extensions {
873	my ($path) = @_;	1323	my $grp = IO::AIO::aio_group;
874		1324
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1325	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
876	my $base = $1;	1326	for (grep /\.ext$/, @{$_[0]}) {
877	my $pkg = $1;	1327	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}	1328	}
900	die $@;
901	}	1329	};
902		1330
903	push @EXTS, $pkg;	1331	$grp
904	}	1332	}
905		1333
906	sub load_extensions {	1334	sub load_extensions {
		1335	cf::sync_job {
		1336	my %todo;
		1337
907	for my $ext (<$LIBDIR/*.ext>) {	1338	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1339	next unless -r $path;
909	eval {	1340
910	load_extension $ext;	1341	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1342	my $base = $1;
		1343	my $pkg = $1;
		1344	$pkg =~ s/[^[:word:]]/_/g;
		1345	$pkg = "ext::$pkg";
		1346
		1347	open my $fh, "<:utf8", $path
		1348	or die "$path: $!";
		1349
		1350	my $source = do { local $/; <$fh> };
		1351
		1352	my %ext = (
		1353	path => $path,
		1354	base => $base,
		1355	pkg => $pkg,
		1356	);
		1357
		1358	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1359	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1360
		1361	$ext{source} =
		1362	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1363	. "#line 1 \"$path\"\n{\n"
		1364	. $source
		1365	. "\n};\n1";
		1366
		1367	$todo{$base} = \%ext;
		1368	}
		1369
		1370	my %done;
		1371	while (%todo) {
		1372	my $progress;
		1373
		1374	while (my ($k, $v) = each %todo) {
		1375	for (split /,\s*/, $v->{meta}{depends}) {
		1376	goto skip
		1377	unless exists $done{$_};
		1378	}
		1379
		1380	warn "... loading '$k' into '$v->{pkg}'\n";
		1381
		1382	unless (eval $v->{source}) {
		1383	my $msg = $@ ? "$v->{path}: $@\n"
		1384	: "$v->{base}: extension inactive.\n";
		1385
		1386	if (exists $v->{meta}{mandatory}) {
		1387	warn $msg;
		1388	cf::cleanup "mandatory extension failed to load, exiting.";
		1389	}
		1390
		1391	warn $msg;
		1392	}
		1393
		1394	$done{$k} = delete $todo{$k};
		1395	push @EXTS, $v->{pkg};
		1396	$progress = 1;
911	1	1397	}
912	} or warn "$ext not loaded: $@";	1398
		1399	skip:
		1400	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1401	unless $progress;
		1402	}
913	}	1403	};
914	}	1404	}
915		1405
916	#############################################################################	1406	#############################################################################
917		1407
		1408	=back
		1409
918	=head2 CORE EXTENSIONS	1410	=head2 CORE EXTENSIONS
919		1411
920	Functions and methods that extend core crossfire objects.	1412	Functions and methods that extend core deliantra objects.
921		1413
922	=cut	1414	=cut
923		1415
924	package cf::player;	1416	package cf::player;
925		1417
…		…
927		1419
928	=head3 cf::player	1420	=head3 cf::player
929		1421
930	=over 4	1422	=over 4
931		1423
		1424	=item cf::player::num_playing
		1425
		1426	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1427
		1428	=cut
		1429
		1430	sub num_playing {
		1431	scalar grep
		1432	$_->ob->map
		1433	&& !$_->hidden
		1434	&& !$_->ob->flag (cf::FLAG_WIZ),
		1435	cf::player::list
		1436	}
		1437
932	=item cf::player::find $login	1438	=item cf::player::find $login
933		1439
934	Returns the given player object, loading it if necessary (might block).	1440	Returns the given player object, loading it if necessary (might block).
935		1441
936	=cut	1442	=cut
937		1443
938	sub playerdir($) {	1444	sub playerdir($) {
939	cf::localdir	1445	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1446	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1447	}
945		1448
946	sub path($) {	1449	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1450	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1451
949	(playerdir $login) . "/$login.pl"	1452	(playerdir $login) . "/playerdata"
950	}	1453	}
951		1454
952	sub find_active($) {	1455	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1456	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1457	and $cf::PLAYER{$_[0]}->active
…		…
957		1460
958	sub exists($) {	1461	sub exists($) {
959	my ($login) = @_;	1462	my ($login) = @_;
960		1463
961	$cf::PLAYER{$login}	1464	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat path $login }	1465	or !aio_stat path $login
963	}	1466	}
964		1467
965	sub find($) {	1468	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1469	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1470	my $login = $_[0];
968		1471
969	my $guard = cf::lock_acquire "user_find:$login";	1472	my $guard = cf::lock_acquire "user_find:$login";
970		1473
971	$cf::PLAYER{$_[0]} || do {	1474	$cf::PLAYER{$_[0]} || do {
972	my $pl = load_pl path $login	1475	# rename old playerfiles to new ones
		1476	#TODO: remove when no longer required
		1477	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1478	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1479	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1480	aio_unlink +(playerdir $login) . "/$login.pl";
		1481
		1482	my $f = new_from_file cf::object::thawer path $login
973	or return;	1483	or return;
		1484
		1485	my $pl = cf::player::load_pl $f
		1486	or return;
		1487
		1488	local $cf::PLAYER_LOADING{$login} = $pl;
		1489	$f->resolve_delayed_derefs;
974	$cf::PLAYER{$login} = $pl	1490	$cf::PLAYER{$login} = $pl
975	}	1491	}
976	}	1492	}
977	}	1493	}
978		1494
…		…
987	return if $pl->{deny_save};	1503	return if $pl->{deny_save};
988		1504
989	aio_mkdir playerdir $pl, 0770;	1505	aio_mkdir playerdir $pl, 0770;
990	$pl->{last_save} = $cf::RUNTIME;	1506	$pl->{last_save} = $cf::RUNTIME;
991		1507
		1508	cf::get_slot 0.01;
		1509
992	$pl->save_pl ($path);	1510	$pl->save_pl ($path);
993	Coro::cede;	1511	cf::cede_to_tick;
994	}	1512	}
995		1513
996	sub new($) {	1514	sub new($) {
997	my ($login) = @_;	1515	my ($login) = @_;
998		1516
…		…
1004	$cf::PLAYER{$login} = $self;	1522	$cf::PLAYER{$login} = $self;
1005		1523
1006	$self	1524	$self
1007	}	1525	}
1008		1526
		1527	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1528
		1529	=cut
		1530
		1531	sub send_msg {
		1532	my $ns = shift->ns
		1533	or return;
		1534	$ns->send_msg (@_);
		1535	}
		1536
1009	=item $pl->quit_character	1537	=item $pl->quit_character
1010		1538
1011	Nukes the player without looking back. If logged in, the connection will	1539	Nukes the player without looking back. If logged in, the connection will
1012	be destroyed. May block for a long time.	1540	be destroyed. May block for a long time.
1013		1541
1014	=cut	1542	=cut
1015		1543
1016	sub quit_character {	1544	sub quit_character {
1017	my ($pl) = @_;	1545	my ($pl) = @_;
1018		1546
		1547	my $name = $pl->ob->name;
		1548
1019	$pl->{deny_save} = 1;	1549	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1550	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1021		1551
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1552	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1023	$pl->deactivate;	1553	$pl->deactivate;
		1554	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1555	$pl->ob->check_score;
1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1556	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1025	$pl->ns->destroy if $pl->ns;	1557	$pl->ns->destroy if $pl->ns;
1026		1558
1027	my $path = playerdir $pl;	1559	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1560	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1561	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1562	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1563	$pl->destroy;
		1564
		1565	my $prefix = qr<^~\Q$name\E/>;
		1566
		1567	# nuke player maps
		1568	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1569
1032	IO::AIO::aio_rmtree $temp;	1570	IO::AIO::aio_rmtree $temp;
		1571	}
		1572
		1573	=item $pl->kick
		1574
		1575	Kicks a player out of the game. This destroys the connection.
		1576
		1577	=cut
		1578
		1579	sub kick {
		1580	my ($pl, $kicker) = @_;
		1581
		1582	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1583	$pl->killer ("kicked");
		1584	$pl->ns->destroy;
1033	}	1585	}
1034		1586
1035	=item cf::player::list_logins	1587	=item cf::player::list_logins
1036		1588
1037	Returns am arrayref of all valid playernames in the system, can take a	1589	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1590	while and may block, so not sync_job-capable, ever.
1039		1591
1040	=cut	1592	=cut
1041		1593
1042	sub list_logins {	1594	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1595	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1596	or return [];
1045		1597
1046	my @logins;	1598	my @logins;
1047		1599
1048	for my $login (@$dirs) {	1600	for my $login (@$dirs) {
		1601	my $path = path $login;
		1602
		1603	# a .pst is a dead give-away for a valid player
		1604	# if no pst file found, open and chekc for blocked users
		1605	if (aio_stat "$path.pst") {
1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1606	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1050	aio_read $fh, 0, 512, my $buf, 0 or next;	1607	aio_read $fh, 0, 512, my $buf, 0 or next;
1051	$buf !~ /^password -------------$/m or next; # official not-valid tag	1608	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1609	}
1052		1610
1053	utf8::decode $login;	1611	utf8::decode $login;
1054	push @logins, $login;	1612	push @logins, $login;
1055	}	1613	}
1056		1614
…		…
1064		1622
1065	=cut	1623	=cut
1066		1624
1067	sub maps($) {	1625	sub maps($) {
1068	my ($pl) = @_;	1626	my ($pl) = @_;
		1627
		1628	$pl = ref $pl ? $pl->ob->name : $pl;
1069		1629
1070	my $files = aio_readdir playerdir $pl	1630	my $files = aio_readdir playerdir $pl
1071	or return;	1631	or return;
1072		1632
1073	my @paths;	1633	my @paths;
…		…
1075	for (@$files) {	1635	for (@$files) {
1076	utf8::decode $_;	1636	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1637	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1638	next unless /^$PATH_SEP/o;
1079		1639
1080	s/\.map$//;	1640	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1641	}
1083		1642
1084	\@paths	1643	\@paths
1085	}	1644	}
1086		1645
		1646	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1647
		1648	Expand deliantra pod fragments into protocol xml.
		1649
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1650	=item $player->ext_reply ($msgid, @msg)
1088		1651
1089	Sends an ext reply to the player.	1652	Sends an ext reply to the player.
1090		1653
1091	=cut	1654	=cut
1092		1655
1093	sub ext_reply($$$%) {	1656	sub ext_reply($$@) {
1094	my ($self, $id, %msg) = @_;	1657	my ($self, $id, @msg) = @_;
1095		1658
1096	$msg{msgid} = $id;	1659	$self->ns->ext_reply ($id, @msg)
1097
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1660	}
1100		1661
1101	package cf;	1662	=item $player->ext_msg ($type, @msg)
		1663
		1664	Sends an ext event to the client.
		1665
		1666	=cut
		1667
		1668	sub ext_msg($$@) {
		1669	my ($self, $type, @msg) = @_;
		1670
		1671	$self->ns->ext_msg ($type, @msg);
		1672	}
		1673
		1674	=head3 cf::region
		1675
		1676	=over 4
		1677
		1678	=cut
		1679
		1680	package cf::region;
		1681
		1682	=item cf::region::find_by_path $path
		1683
		1684	Tries to decuce the likely region for a map knowing only its path.
		1685
		1686	=cut
		1687
		1688	sub find_by_path($) {
		1689	my ($path) = @_;
		1690
		1691	my ($match, $specificity);
		1692
		1693	for my $region (list) {
		1694	if ($region->{match} && $path =~ $region->{match}) {
		1695	($match, $specificity) = ($region, $region->specificity)
		1696	if $region->specificity > $specificity;
		1697	}
		1698	}
		1699
		1700	$match
		1701	}
1102		1702
1103	=back	1703	=back
1104
1105		1704
1106	=head3 cf::map	1705	=head3 cf::map
1107		1706
1108	=over 4	1707	=over 4
1109		1708
…		…
1121	our $MAX_RESET = 3600;	1720	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1721	our $DEFAULT_RESET = 3000;
1123		1722
1124	sub generate_random_map {	1723	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1724	my ($self, $rmp) = @_;
		1725
		1726	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1727
1126	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1127	$self->_create_random_map (	1729	$self->_create_random_map (
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1741	)
1140	}	1742	}
1141		1743
		1744	=item cf::map->register ($regex, $prio)
		1745
		1746	Register a handler for the map path matching the given regex at the
		1747	givne priority (higher is better, built-in handlers have priority 0, the
		1748	default).
		1749
		1750	=cut
		1751
1142	sub register {	1752	sub register {
1143	my (undef, $regex) = @_;	1753	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1754	my $pkg = caller;
1145		1755
1146	no strict;	1756	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1757	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1758
1149	$EXT_MAP{$pkg} = qr<$regex>;	1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1760	}
1151		1761
1152	# also paths starting with '/'	1762	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1764
1155	sub thawer_merge {	1765	sub thawer_merge {
1156	my ($self, $merge) = @_;	1766	my ($self, $merge) = @_;
1157		1767
1158	# we have to keep some variables in memory intact	1768	# we have to keep some variables in memory intact
1159	local $self->{path};	1769	local $self->{path};
1160	local $self->{load_path};	1770	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1771
1164	$self->SUPER::thawer_merge ($merge);	1772	$self->SUPER::thawer_merge ($merge);
1165	}	1773	}
1166		1774
1167	sub normalise {	1775	sub normalise {
1168	my ($path, $base) = @_;	1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
1169		1781
1170	# map plan:	1782	# map plan:
1171	#	1783	#
1172	# /! non-realised random map exit (special hack!)	1784	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1785	# {... are special paths that are not being touched
…		…
1201		1813
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1815
1204	$path = normalise $path, $base;	1816	$path = normalise $path, $base;
1205		1817
1206	for my $pkg (keys %EXT_MAP) {	1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1820	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1821	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1822	$self->init; # pass $1 etc.
1211	return $self;	1823	return $self;
1212	}	1824	}
1213	}	1825	}
1214		1826
1215	Carp::carp "unable to resolve path '$path'.";	1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
1216	()	1828	()
1217	}	1829	}
1218		1830
1219	sub init {	1831	sub init {
1220	my ($self) = @_;	1832	my ($self) = @_;
…		…
1235		1847
1236	# the original (read-only) location	1848	# the original (read-only) location
1237	sub load_path {	1849	sub load_path {
1238	my ($self) = @_;	1850	my ($self) = @_;
1239		1851
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1852	"$MAPDIR/$self->{path}.map"
1241	}	1853	}
1242		1854
1243	# the temporary/swap location	1855	# the temporary/swap location
1244	sub save_path {	1856	sub save_path {
1245	my ($self) = @_;	1857	my ($self) = @_;
1246		1858
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1860	"$TMPDIR/$path.map"
1249	}	1861	}
1250		1862
1251	# the unique path, undef == no special unique path	1863	# the unique path, undef == no special unique path
1252	sub uniq_path {	1864	sub uniq_path {
1253	my ($self) = @_;	1865	my ($self) = @_;
1254		1866
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1868	"$UNIQUEDIR/$path"
1257	}	1869	}
1258		1870
1259	# and all this just because we cannot iterate over	1871	sub decay_objects {
1260	# all maps in C++...
1261	sub change_all_map_light {
1262	my ($change) = @_;	1872	my ($self) = @_;
1263		1873
1264	$_->change_map_light ($change)	1874	return if $self->{deny_reset};
1265	for grep $_->outdoor, values %cf::MAP;	1875
		1876	$self->do_decay_objects;
1266	}	1877	}
1267		1878
1268	sub unlink_save {	1879	sub unlink_save {
1269	my ($self) = @_;	1880	my ($self) = @_;
1270		1881
…		…
1275		1886
1276	sub load_header_from($) {	1887	sub load_header_from($) {
1277	my ($self, $path) = @_;	1888	my ($self, $path) = @_;
1278		1889
1279	utf8::encode $path;	1890	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1891	my $f = new_from_file cf::object::thawer $path
1281	or return;	1892	or return;
1282		1893
1283	$self->_load_header ($path)	1894	$self->_load_header ($f)
1284	or return;	1895	or return;
1285		1896
		1897	local $MAP_LOADING{$self->{path}} = $self;
		1898	$f->resolve_delayed_derefs;
		1899
1286	$self->{load_path} = $path;	1900	$self->{load_path} = $path;
1287		1901
1288	1	1902	1
1289	}	1903	}
1290		1904
1291	sub load_orig {	1905	sub load_header_orig {
1292	my ($self) = @_;	1906	my ($self) = @_;
1293		1907
1294	$self->load_header_from ($self->load_path)	1908	$self->load_header_from ($self->load_path)
1295	}	1909	}
1296		1910
1297	sub load_temp {	1911	sub load_header_temp {
1298	my ($self) = @_;	1912	my ($self) = @_;
1299		1913
1300	$self->load_header_from ($self->save_path)	1914	$self->load_header_from ($self->save_path)
		1915	}
		1916
		1917	sub prepare_temp {
		1918	my ($self) = @_;
		1919
		1920	$self->last_access ((delete $self->{last_access})
		1921	|| $cf::RUNTIME); #d#
		1922	# safety
		1923	$self->{instantiate_time} = $cf::RUNTIME
		1924	if $self->{instantiate_time} > $cf::RUNTIME;
		1925	}
		1926
		1927	sub prepare_orig {
		1928	my ($self) = @_;
		1929
		1930	$self->{load_original} = 1;
		1931	$self->{instantiate_time} = $cf::RUNTIME;
		1932	$self->last_access ($cf::RUNTIME);
		1933	$self->instantiate;
1301	}	1934	}
1302		1935
1303	sub load_header {	1936	sub load_header {
1304	my ($self) = @_;	1937	my ($self) = @_;
1305		1938
1306	if ($self->load_temp) {	1939	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	1940	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	1941	} else {
1313	$self->load_orig	1942	$self->load_header_orig
1314	or return;	1943	or return;
1315		1944	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	1945	}
		1946
		1947	$self->{deny_reset} = 1
		1948	if $self->no_reset;
		1949
		1950	$self->default_region (cf::region::find_by_path $self->{path})
		1951	unless $self->default_region;
1321		1952
1322	1	1953	1
1323	}	1954	}
1324		1955
1325	sub find;	1956	sub find;
1326	sub find {	1957	sub find {
1327	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1328		1959
1329	$path = normalise $path, $origin && $origin->path;	1960	$path = normalise $path, $origin && $origin->path;
1330		1961
		1962	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1331	cf::lock_wait "map_find:$path";	1963	my $guard2 = cf::lock_acquire "map_find:$path";
1332		1964
1333	$cf::MAP{$path} || do {	1965	$cf::MAP{$path} || do {
1334	my $guard = cf::lock_acquire "map_find:$path";
1335	my $map = new_from_path cf::map $path	1966	my $map = new_from_path cf::map $path
1336	or return;	1967	or return;
1337		1968
1338	$map->{last_save} = $cf::RUNTIME;	1969	$map->{last_save} = $cf::RUNTIME;
1339		1970
1340	$map->load_header	1971	$map->load_header
1341	or return;	1972	or return;
1342		1973
1343	if ($map->should_reset) {	1974	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1344	# doing this can freeze the server in a sync job, obviously	1975	# doing this can freeze the server in a sync job, obviously
1345	#$cf::WAIT_FOR_TICK->wait;	1976	#$cf::WAIT_FOR_TICK->wait;
		1977	undef $guard2;
		1978	undef $guard1;
1346	$map->reset;	1979	$map->reset;
1347	undef $guard;
1348	$map = find $path	1980	return find $path;
1349	or return;
1350	}	1981	}
1351		1982
1352	$cf::MAP{$path} = $map	1983	$cf::MAP{$path} = $map
1353	}	1984	}
1354	}	1985	}
		1986
		1987	sub pre_load { }
		1988	sub post_load { }
1355		1989
1356	sub load {	1990	sub load {
1357	my ($self) = @_;	1991	my ($self) = @_;
1358		1992
		1993	local $self->{deny_reset} = 1; # loading can take a long time
		1994
1359	my $path = $self->{path};	1995	my $path = $self->{path};
		1996
		1997	{
1360	my $guard = cf::lock_acquire "map_load:$path";	1998	my $guard = cf::lock_acquire "map_data:$path";
1361		1999
		2000	return unless $self->valid;
1362	return if $self->in_memory != cf::MAP_SWAPPED;	2001	return unless $self->in_memory == cf::MAP_SWAPPED;
1363		2002
1364	$self->in_memory (cf::MAP_LOADING);	2003	$self->in_memory (cf::MAP_LOADING);
1365		2004
1366	$self->alloc;	2005	$self->alloc;
1367	$self->_load_objects ($self->{load_path}, 1)	2006
		2007	$self->pre_load;
		2008	cf::cede_to_tick;
		2009
		2010	my $f = new_from_file cf::object::thawer $self->{load_path};
		2011	$f->skip_block;
		2012	$self->_load_objects ($f)
1368	or return;	2013	or return;
1369		2014
1370	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2015	$self->post_load_original
1371	if delete $self->{load_original};	2016	if delete $self->{load_original};
1372		2017
1373	if (my $uniq = $self->uniq_path) {	2018	if (my $uniq = $self->uniq_path) {
1374	utf8::encode $uniq;	2019	utf8::encode $uniq;
1375	if (aio_open $uniq, O_RDONLY, 0) {	2020	unless (aio_stat $uniq) {
		2021	if (my $f = new_from_file cf::object::thawer $uniq) {
1376	$self->clear_unique_items;	2022	$self->clear_unique_items;
1377	$self->_load_objects ($uniq, 0);	2023	$self->_load_objects ($f);
		2024	$f->resolve_delayed_derefs;
		2025	}
1378	}	2026	}
1379	}	2027	}
1380		2028
1381	Coro::cede;	2029	$f->resolve_delayed_derefs;
1382		2030
		2031	cf::cede_to_tick;
1383	# now do the right thing for maps	2032	# now do the right thing for maps
1384	$self->link_multipart_objects;	2033	$self->link_multipart_objects;
1385
1386	unless ($self->{deny_activate}) {
1387	$self->decay_objects;
1388	$self->fix_auto_apply;
1389	$self->update_buttons;
1390	Coro::cede;
1391	$self->set_darkness_map;
1392	$self->difficulty ($self->estimate_difficulty)	2034	$self->difficulty ($self->estimate_difficulty)
1393	unless $self->difficulty;	2035	unless $self->difficulty;
1394	Coro::cede;	2036	cf::cede_to_tick;
		2037
		2038	unless ($self->{deny_activate}) {
		2039	$self->decay_objects;
		2040	$self->fix_auto_apply;
		2041	$self->update_buttons;
		2042	cf::cede_to_tick;
1395	$self->activate;	2043	$self->activate;
1396	}	2044	}
1397		2045
		2046	$self->{last_save} = $cf::RUNTIME;
		2047	$self->last_access ($cf::RUNTIME);
		2048
1398	$self->in_memory (cf::MAP_IN_MEMORY);	2049	$self->in_memory (cf::MAP_ACTIVE);
		2050	}
		2051
		2052	$self->post_load;
1399	}	2053	}
1400		2054
1401	sub customise_for {	2055	sub customise_for {
1402	my ($self, $ob) = @_;	2056	my ($self, $ob) = @_;
1403		2057
1404	return find "~" . $ob->name . "/" . $self->{path}	2058	return find "~" . $ob->name . "/" . $self->{path}
1405	if $self->per_player;	2059	if $self->per_player;
1406		2060
		2061	# return find "?party/" . $ob->name . "/" . $self->{path}
		2062	# if $self->per_party;
		2063
1407	$self	2064	$self
1408	}	2065	}
1409		2066
1410	# find and load all maps in the 3x3 area around a map	2067	# find and load all maps in the 3x3 area around a map
1411	sub load_diag {	2068	sub load_neighbours {
1412	my ($map) = @_;	2069	my ($map) = @_;
1413		2070
1414	my @diag; # diagonal neighbours	2071	my @neigh; # diagonal neighbours
1415		2072
1416	for (0 .. 3) {	2073	for (0 .. 3) {
1417	my $neigh = $map->tile_path ($_)	2074	my $neigh = $map->tile_path ($_)
1418	or next;	2075	or next;
1419	$neigh = find $neigh, $map	2076	$neigh = find $neigh, $map
1420	or next;	2077	or next;
1421	$neigh->load;	2078	$neigh->load;
1422		2079
		2080	push @neigh,
1423	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2081	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1424	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2082	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1425	}	2083	}
1426		2084
1427	for (@diag) {	2085	for (grep defined $_->[0], @neigh) {
		2086	my ($path, $origin) = @$_;
1428	my $neigh = find @$_	2087	my $neigh = find $path, $origin
1429	or next;	2088	or next;
1430	$neigh->load;	2089	$neigh->load;
1431	}	2090	}
1432	}	2091	}
1433		2092
…		…
1438	}	2097	}
1439		2098
1440	sub do_load_sync {	2099	sub do_load_sync {
1441	my ($map) = @_;	2100	my ($map) = @_;
1442		2101
		2102	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2103	if $Coro::current == $Coro::main;
		2104
1443	cf::sync_job { $map->load };	2105	cf::sync_job { $map->load };
1444	}	2106	}
1445		2107
1446	our %MAP_PREFETCH;	2108	our %MAP_PREFETCH;
1447	our $MAP_PREFETCHER = undef;	2109	our $MAP_PREFETCHER = undef;
1448		2110
1449	sub find_async {	2111	sub find_async {
1450	my ($path, $origin) = @_;	2112	my ($path, $origin, $load) = @_;
1451		2113
1452	$path = normalise $path, $origin && $origin->{path};	2114	$path = normalise $path, $origin && $origin->{path};
1453		2115
1454	if (my $map = $cf::MAP{$path}) {	2116	if (my $map = $cf::MAP{$path}) {
1455	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2117	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1456	}	2118	}
1457		2119
1458	undef $MAP_PREFETCH{$path};	2120	$MAP_PREFETCH{$path} |= $load;
		2121
1459	$MAP_PREFETCHER ||= cf::async {	2122	$MAP_PREFETCHER ||= cf::async {
		2123	$Coro::current->{desc} = "map prefetcher";
		2124
1460	while (%MAP_PREFETCH) {	2125	while (%MAP_PREFETCH) {
1461	for my $path (keys %MAP_PREFETCH) {	2126	while (my ($k, $v) = each %MAP_PREFETCH) {
1462	my $map = find $path	2127	if (my $map = find $k) {
1463	or next;
1464	$map->load;	2128	$map->load if $v;
		2129	}
1465		2130
1466	delete $MAP_PREFETCH{$path};	2131	delete $MAP_PREFETCH{$k};
1467	}	2132	}
1468	}	2133	}
1469	undef $MAP_PREFETCHER;	2134	undef $MAP_PREFETCHER;
1470	};	2135	};
		2136	$MAP_PREFETCHER->prio (6);
1471		2137
1472	()	2138	()
1473	}	2139	}
1474		2140
1475	sub save {	2141	sub save {
1476	my ($self) = @_;	2142	my ($self) = @_;
1477		2143
1478	my $lock = cf::lock_acquire "map_data:" . $self->path;	2144	my $lock = cf::lock_acquire "map_data:$self->{path}";
1479		2145
1480	$self->{last_save} = $cf::RUNTIME;	2146	$self->{last_save} = $cf::RUNTIME;
1481		2147
1482	return unless $self->dirty;	2148	return unless $self->dirty;
1483		2149
…		…
1489	return if $self->{deny_save};	2155	return if $self->{deny_save};
1490		2156
1491	local $self->{last_access} = $self->last_access;#d#	2157	local $self->{last_access} = $self->last_access;#d#
1492		2158
1493	cf::async {	2159	cf::async {
		2160	$Coro::current->{desc} = "map player save";
1494	$_->contr->save for $self->players;	2161	$_->contr->save for $self->players;
1495	};	2162	};
		2163
		2164	cf::get_slot 0.02;
1496		2165
1497	if ($uniq) {	2166	if ($uniq) {
1498	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2167	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1499	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2168	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1500	} else {	2169	} else {
…		…
1506	my ($self) = @_;	2175	my ($self) = @_;
1507		2176
1508	# save first because save cedes	2177	# save first because save cedes
1509	$self->save;	2178	$self->save;
1510		2179
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2180	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2181
1513	return if $self->players;	2182	return if $self->players;
1514	return if $self->in_memory != cf::MAP_IN_MEMORY;	2183	return if $self->in_memory != cf::MAP_ACTIVE;
1515	return if $self->{deny_save};	2184	return if $self->{deny_save};
1516		2185
		2186	$self->in_memory (cf::MAP_SWAPPED);
		2187
		2188	$self->deactivate;
		2189	$_->clear_links_to ($self) for values %cf::MAP;
1517	$self->clear;	2190	$self->clear;
1518	$self->in_memory (cf::MAP_SWAPPED);
1519	}	2191	}
1520		2192
1521	sub reset_at {	2193	sub reset_at {
1522	my ($self) = @_;	2194	my ($self) = @_;
1523		2195
1524	# TODO: safety, remove and allow resettable per-player maps	2196	# TODO: safety, remove and allow resettable per-player maps
1525	return 1e99 if $self->isa ("ext::map_per_player");#d#
1526	return 1e99 if $self->{deny_reset};	2197	return 1e99 if $self->{deny_reset};
1527		2198
1528	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2199	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1529	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2200	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1530		2201
…		…
1541	my ($self) = @_;	2212	my ($self) = @_;
1542		2213
1543	my $lock = cf::lock_acquire "map_data:$self->{path}";	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		2215
1545	return if $self->players;	2216	return if $self->players;
1546	return if $self->isa ("ext::map_per_player");#d#
1547		2217
1548	warn "resetting map ", $self->path;#d#	2218	warn "resetting map ", $self->path;
		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	# need to save uniques path
		2223	unless ($self->{deny_save}) {
		2224	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2225
		2226	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2227	if $uniq;
		2228	}
1549		2229
1550	delete $cf::MAP{$self->path};	2230	delete $cf::MAP{$self->path};
1551		2231
1552	$self->in_memory (cf::MAP_SWAPPED);	2232	$self->deactivate;
		2233	$_->clear_links_to ($self) for values %cf::MAP;
1553	$self->clear;	2234	$self->clear;
1554
1555	$_->clear_links_to ($self) for values %cf::MAP;
1556		2235
1557	$self->unlink_save;	2236	$self->unlink_save;
1558	$self->destroy;	2237	$self->destroy;
1559	}	2238	}
1560		2239
1561	my $nuke_counter = "aaaa";	2240	my $nuke_counter = "aaaa";
1562		2241
1563	sub nuke {	2242	sub nuke {
1564	my ($self) = @_;	2243	my ($self) = @_;
1565		2244
		2245	{
		2246	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2247
1566	delete $cf::MAP{$self->path};	2248	delete $cf::MAP{$self->path};
1567		2249
1568	$self->unlink_save;	2250	$self->unlink_save;
1569		2251
1570	bless $self, "cf::map";	2252	bless $self, "cf::map";
1571	delete $self->{deny_reset};	2253	delete $self->{deny_reset};
1572	$self->{deny_save} = 1;	2254	$self->{deny_save} = 1;
1573	$self->reset_timeout (1);	2255	$self->reset_timeout (1);
1574	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2256	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1575		2257
1576	$cf::MAP{$self->path} = $self;	2258	$cf::MAP{$self->path} = $self;
		2259	}
1577		2260
1578	$self->reset; # polite request, might not happen	2261	$self->reset; # polite request, might not happen
		2262	}
		2263
		2264	=item $maps = cf::map::tmp_maps
		2265
		2266	Returns an arrayref with all map paths of currently instantiated and saved
		2267	maps. May block.
		2268
		2269	=cut
		2270
		2271	sub tmp_maps() {
		2272	[
		2273	map {
		2274	utf8::decode $_;
		2275	/\.map$/
		2276	? normalise $_
		2277	: ()
		2278	} @{ aio_readdir $TMPDIR or [] }
		2279	]
		2280	}
		2281
		2282	=item $maps = cf::map::random_maps
		2283
		2284	Returns an arrayref with all map paths of currently instantiated and saved
		2285	random maps. May block.
		2286
		2287	=cut
		2288
		2289	sub random_maps() {
		2290	[
		2291	map {
		2292	utf8::decode $_;
		2293	/\.map$/
		2294	? normalise "?random/$_"
		2295	: ()
		2296	} @{ aio_readdir $RANDOMDIR or [] }
		2297	]
1579	}	2298	}
1580		2299
1581	=item cf::map::unique_maps	2300	=item cf::map::unique_maps
1582		2301
1583	Returns an arrayref of paths of all shared maps that have	2302	Returns an arrayref of paths of all shared maps that have
1584	instantiated unique items. May block.	2303	instantiated unique items. May block.
1585		2304
1586	=cut	2305	=cut
1587		2306
1588	sub unique_maps() {	2307	sub unique_maps() {
1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2308	[
1590	or return;	2309	map {
1591
1592	my @paths;
1593
1594	for (@$files) {
1595	utf8::decode $_;	2310	utf8::decode $_;
1596	next if /\.pst$/;	2311	s/\.map$//; # TODO future compatibility hack
1597	next unless /^$PATH_SEP/o;	2312	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1598		2313	? ()
1599	s/\.map$//;	2314	: normalise $_
1600	push @paths, $_;	2315	} @{ aio_readdir $UNIQUEDIR or [] }
1601	}	2316	]
1602
1603	\@paths
1604	}	2317	}
1605
1606	package cf;
1607		2318
1608	=back	2319	=back
1609		2320
1610	=head3 cf::object	2321	=head3 cf::object
1611		2322
…		…
1615		2326
1616	=over 4	2327	=over 4
1617		2328
1618	=item $ob->inv_recursive	2329	=item $ob->inv_recursive
1619		2330
1620	Returns the inventory of the object _and_ their inventories, recursively.	2331	Returns the inventory of the object I<and> their inventories, recursively,
		2332	but I<not> the object itself.
1621		2333
1622	=cut	2334	=cut
1623		2335
1624	sub inv_recursive_;	2336	sub inv_recursive_;
1625	sub inv_recursive_ {	2337	sub inv_recursive_ {
…		…
1628		2340
1629	sub inv_recursive {	2341	sub inv_recursive {
1630	inv_recursive_ inv $_[0]	2342	inv_recursive_ inv $_[0]
1631	}	2343	}
1632		2344
		2345	=item $ref = $ob->ref
		2346
		2347	Creates and returns a persistent reference to an object that can be stored as a string.
		2348
		2349	=item $ob = cf::object::deref ($refstring)
		2350
		2351	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2352	even if the object actually exists. May block.
		2353
		2354	=cut
		2355
		2356	sub deref {
		2357	my ($ref) = @_;
		2358
		2359	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2360	my ($uuid, $name) = ($1, $2);
		2361	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2362	or return;
		2363	$pl->ob->uuid eq $uuid
		2364	or return;
		2365
		2366	$pl->ob
		2367	} else {
		2368	warn "$ref: cannot resolve object reference\n";
		2369	undef
		2370	}
		2371	}
		2372
1633	package cf;	2373	package cf;
1634		2374
1635	=back	2375	=back
1636		2376
1637	=head3 cf::object::player	2377	=head3 cf::object::player
…		…
1643	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2383	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1644	can be C<undef>. Does the right thing when the player is currently in a	2384	can be C<undef>. Does the right thing when the player is currently in a
1645	dialogue with the given NPC character.	2385	dialogue with the given NPC character.
1646		2386
1647	=cut	2387	=cut
		2388
		2389	our $SAY_CHANNEL = {
		2390	id => "say",
		2391	title => "Map",
		2392	reply => "say ",
		2393	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2394	};
		2395
		2396	our $CHAT_CHANNEL = {
		2397	id => "chat",
		2398	title => "Chat",
		2399	reply => "chat ",
		2400	tooltip => "Player chat and shouts, global to the server.",
		2401	};
1648		2402
1649	# rough implementation of a future "reply" method that works	2403	# rough implementation of a future "reply" method that works
1650	# with dialog boxes.	2404	# with dialog boxes.
1651	#TODO: the first argument must go, split into a $npc->reply_to ( method	2405	#TODO: the first argument must go, split into a $npc->reply_to ( method
1652	sub cf::object::player::reply($$$;$) {	2406	sub cf::object::player::reply($$$;$) {
…		…
1654		2408
1655	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1656		2410
1657	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1658	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1659	} else {	2414	} else {
		2415	my $pl = $self->contr;
		2416
		2417	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2418	my $dialog = $pl->{npc_dialog};
		2419	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2420
		2421	} else {
1660	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1661	$self->message ($msg, $flags);	2423	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2424	}
1662	}	2425	}
		2426	}
		2427
		2428	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2429
		2430	=cut
		2431
		2432	sub cf::object::send_msg {
		2433	my $pl = shift->contr
		2434	or return;
		2435	$pl->send_msg (@_);
1663	}	2436	}
1664		2437
1665	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1666		2439
1667	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1680		2453
1681	=item $player_object->enter_link	2454	=item $player_object->enter_link
1682		2455
1683	Freezes the player and moves him/her to a special map (C<{link}>).	2456	Freezes the player and moves him/her to a special map (C<{link}>).
1684		2457
1685	The player should be reasonably safe there for short amounts of time. You	2458	The player should be reasonably safe there for short amounts of time (e.g.
1686	I<MUST> call C<leave_link> as soon as possible, though.	2459	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2460	though, as the palyer cannot control the character while it is on the link
		2461	map.
1687		2462
1688	Will never block.	2463	Will never block.
1689		2464
1690	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1691		2466
…		…
1699	=cut	2474	=cut
1700		2475
1701	sub link_map {	2476	sub link_map {
1702	unless ($LINK_MAP) {	2477	unless ($LINK_MAP) {
1703	$LINK_MAP = cf::map::find "{link}"	2478	$LINK_MAP = cf::map::find "{link}"
1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2479	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1705	$LINK_MAP->load;	2480	$LINK_MAP->load;
1706	}	2481	}
1707		2482
1708	$LINK_MAP	2483	$LINK_MAP
1709	}	2484	}
…		…
1714	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1715		2490
1716	return if UNIVERSAL::isa $self->map, "ext::map_link";	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1717		2492
1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1719	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1720		2495
1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1722	}	2497	}
1723		2498
1724	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1725	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1726		2503
1727	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1728		2505
1729	unless ($map) {	2506	unless ($map) {
1730	# restore original map position	2507	# restore original map position
…		…
1744	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1745	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1746	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1747		2524
1748	$map->load;	2525	$map->load;
1749	$map->load_diag;	2526	$map->load_neighbours;
1750		2527
1751	return unless $self->contr->active;	2528	return unless $self->contr->active;
		2529	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1752	$self->activate_recursive;	2530	$self->activate_recursive;
		2531
		2532	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1753	$self->enter_map ($map, $x, $y);	2533	$self->enter_map ($map, $x, $y);
1754	}	2534	}
1755		2535
1756	cf::player->attach (	2536	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1757	on_logout => sub {
1758	my ($pl) = @_;
1759		2537
1760	# abort map switching before logout	2538	Moves the player to the given map-path and coordinates by first freezing
1761	if ($pl->ob->{_link_pos}) {	2539	her, loading and preparing them map, calling the provided $check callback
1762	cf::sync_job {	2540	that has to return the map if sucecssful, and then unfreezes the player on
1763	$pl->ob->leave_link	2541	the new (success) or old (failed) map position. In either case, $done will
1764	};	2542	be called at the end of this process.
1765	}
1766	},
1767	on_login => sub {
1768	my ($pl) = @_;
1769		2543
1770	# try to abort aborted map switching on player login :)	2544	Note that $check will be called with a potentially non-loaded map, so if
1771	# should happen only on crashes	2545	it needs a loaded map it has to call C<< ->load >>.
1772	if ($pl->ob->{_link_pos}) {
1773	$pl->ob->enter_link;
1774	(async {
1775	# we need this sleep as the login has a concurrent enter_exit running
1776	# and this sleep increases chances of the player not ending up in scorn
1777	$pl->ob->reply (undef,
1778	"There was an internal problem at your last logout, "
1779	. "the server will try to bring you to your intended destination in a second.",
1780	cf::NDI_RED);
1781	Coro::Timer::sleep 1;
1782	$pl->ob->leave_link;
1783	})->prio (2);
1784	}
1785	},
1786	);
1787		2546
1788	=item $player_object->goto ($path, $x, $y)
1789
1790	=cut	2547	=cut
		2548
		2549	our $GOTOGEN;
1791		2550
1792	sub cf::object::player::goto {	2551	sub cf::object::player::goto {
1793	my ($self, $path, $x, $y) = @_;	2552	my ($self, $path, $x, $y, $check, $done) = @_;
		2553
		2554	# do generation counting so two concurrent goto's will be executed in-order
		2555	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1794		2556
1795	$self->enter_link;	2557	$self->enter_link;
1796		2558
1797	(async {	2559	(async {
1798	my $map = cf::map::find $path;	2560	$Coro::current->{desc} = "player::goto $path $x $y";
		2561
		2562	# *tag paths override both path and x|y
		2563	if ($path =~ /^\*(.*)$/) {
		2564	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2565	my $ob = $obs[rand @obs];
		2566
		2567	# see if we actually can go there
		2568	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2569	$ob = $obs[rand @obs];
		2570	} else {
		2571	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	}
		2573	# else put us there anyways for now #d#
		2574
		2575	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2576	} else {
		2577	($path, $x, $y) = (undef, undef, undef);
		2578	}
		2579	}
		2580
		2581	my $map = eval {
		2582	my $map = defined $path ? cf::map::find $path : undef;
		2583
		2584	if ($map) {
1799	$map = $map->customise_for ($self) if $map;	2585	$map = $map->customise_for ($self);
1800		2586	$map = $check->($map) if $check && $map;
1801	# warn "entering ", $map->path, " at ($x, $y)\n"	2587	} else {
1802	# if $map;
1803
1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2588	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
1805		2590
		2591	$map
		2592	};
		2593
		2594	if ($@) {
		2595	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	LOG llevError | logBacktrace, Carp::longmess $@;
		2597	}
		2598
		2599	if ($gen == $self->{_goto_generation}) {
		2600	delete $self->{_goto_generation};
1806	$self->leave_link ($map, $x, $y);	2601	$self->leave_link ($map, $x, $y);
		2602	}
		2603
		2604	$done->() if $done;
1807	})->prio (1);	2605	})->prio (1);
1808	}	2606	}
1809		2607
1810	=item $player_object->enter_exit ($exit_object)	2608	=item $player_object->enter_exit ($exit_object)
1811		2609
…		…
1831	}	2629	}
1832		2630
1833	sub prepare_random_map {	2631	sub prepare_random_map {
1834	my ($exit) = @_;	2632	my ($exit) = @_;
1835		2633
1836	my $guard = cf::lock_acquire "exit_prepare:$exit";
1837
1838	# all this does is basically replace the /! path by	2634	# all this does is basically replace the /! path by
1839	# a new random map path (?random/...) with a seed	2635	# a new random map path (?random/...) with a seed
1840	# that depends on the exit object	2636	# that depends on the exit object
1841		2637
1842	my $rmp = parse_random_map_params $exit->msg;	2638	my $rmp = parse_random_map_params $exit->msg;
1843		2639
1844	if ($exit->map) {	2640	if ($exit->map) {
1845	$rmp->{region} = $exit->map->region_name;	2641	$rmp->{region} = $exit->region->name;
1846	$rmp->{origin_map} = $exit->map->path;	2642	$rmp->{origin_map} = $exit->map->path;
1847	$rmp->{origin_x} = $exit->x;	2643	$rmp->{origin_x} = $exit->x;
1848	$rmp->{origin_y} = $exit->y;	2644	$rmp->{origin_y} = $exit->y;
		2645
		2646	$exit->map->touch;
1849	}	2647	}
1850		2648
1851	$rmp->{random_seed} ||= $exit->random_seed;	2649	$rmp->{random_seed} ||= $exit->random_seed;
1852		2650
1853	my $data = cf::to_json $rmp;	2651	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1854	my $md5 = Digest::MD5::md5_hex $data;	2652	my $md5 = Digest::MD5::md5_hex $data;
1855	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2653	my $meta = "$RANDOMDIR/$md5.meta";
1856		2654
1857	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2655	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1858	aio_write $fh, 0, (length $data), $data, 0;	2656	aio_write $fh, 0, (length $data), $data, 0;
1859	undef $fh;	2657	undef $fh;
1860	aio_rename "$meta~", $meta;	2658	aio_rename "$meta~", $meta;
1861		2659
		2660	my $slaying = "?random/$md5";
		2661
		2662	if ($exit->valid) {
1862	$exit->slaying ("?random/$md5");	2663	$exit->slaying ("?random/$md5");
1863	$exit->msg (undef);	2664	$exit->msg (undef);
		2665	}
1864	}	2666	}
1865	}	2667	}
1866		2668
1867	sub cf::object::player::enter_exit {	2669	sub cf::object::player::enter_exit {
1868	my ($self, $exit) = @_;	2670	my ($self, $exit) = @_;
…		…
1870	return unless $self->type == cf::PLAYER;	2672	return unless $self->type == cf::PLAYER;
1871		2673
1872	$self->enter_link;	2674	$self->enter_link;
1873		2675
1874	(async {	2676	(async {
1875	$self->deactivate_recursive; # just to be sure	2677	$Coro::current->{desc} = "enter_exit";
		2678
1876	unless (eval {	2679	unless (eval {
		2680	$self->deactivate_recursive; # just to be sure
		2681
		2682	# random map handling
		2683	{
		2684	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2685
1877	prepare_random_map $exit	2686	prepare_random_map $exit
1878	if $exit->slaying eq "/!";	2687	if $exit->slaying eq "/!";
		2688	}
1879		2689
1880	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2690	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1881	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2691	my $x = $exit->stats->hp;
		2692	my $y = $exit->stats->sp;
1882		2693
		2694	$self->goto ($map, $x, $y);
		2695
		2696	# if exit is damned, update players death & WoR home-position
		2697	$self->contr->savebed ($map, $x, $y)
		2698	if $exit->flag (cf::FLAG_DAMNED);
		2699
1883	1;	2700	1
1884	}) {	2701	}) {
1885	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the deliantra server. "
1886	. "I'll try to bring you back to the map you were before. "	2703	. "I'll try to bring you back to the map you were before. "
1887	. "Please report this to the dungeon master!",	2704	. "Please report this to the dungeon master!",
1888	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1889		2706
1890	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1891	$self->leave_link;	2708	$self->leave_link;
1892	}	2709	}
1893	})->prio (1);	2710	})->prio (1);
…		…
1906		2723
1907	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1908	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1909		2726
1910	utf8::encode $text;	2727	utf8::encode $text;
1911	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1912	}	2729	}
1913		2730
		2731	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2732
		2733	Send a drawinfo or msg packet to the client, formatting the msg for the
		2734	client if neccessary. C<$type> should be a string identifying the type of
		2735	the message, with C<log> being the default. If C<$color> is negative, suppress
		2736	the message unless the client supports the msg packet.
		2737
		2738	=cut
		2739
		2740	# non-persistent channels (usually the info channel)
		2741	our %CHANNEL = (
		2742	"c/identify" => {
		2743	id => "infobox",
		2744	title => "Identify",
		2745	reply => undef,
		2746	tooltip => "Items recently identified",
		2747	},
		2748	"c/examine" => {
		2749	id => "infobox",
		2750	title => "Examine",
		2751	reply => undef,
		2752	tooltip => "Signs and other items you examined",
		2753	},
		2754	"c/book" => {
		2755	id => "infobox",
		2756	title => "Book",
		2757	reply => undef,
		2758	tooltip => "The contents of a note or book",
		2759	},
		2760	"c/lookat" => {
		2761	id => "infobox",
		2762	title => "Look",
		2763	reply => undef,
		2764	tooltip => "What you saw there",
		2765	},
		2766	"c/who" => {
		2767	id => "infobox",
		2768	title => "Players",
		2769	reply => undef,
		2770	tooltip => "Shows players who are currently online",
		2771	},
		2772	"c/body" => {
		2773	id => "infobox",
		2774	title => "Body Parts",
		2775	reply => undef,
		2776	tooltip => "Shows which body parts you posess and are available",
		2777	},
		2778	"c/statistics" => {
		2779	id => "infobox",
		2780	title => "Statistics",
		2781	reply => undef,
		2782	tooltip => "Shows your primary statistics",
		2783	},
		2784	"c/skills" => {
		2785	id => "infobox",
		2786	title => "Skills",
		2787	reply => undef,
		2788	tooltip => "Shows your experience per skill and item power",
		2789	},
		2790	"c/shopitems" => {
		2791	id => "infobox",
		2792	title => "Shop Items",
		2793	reply => undef,
		2794	tooltip => "Shows the items currently for sale in this shop",
		2795	},
		2796	"c/resistances" => {
		2797	id => "infobox",
		2798	title => "Resistances",
		2799	reply => undef,
		2800	tooltip => "Shows your resistances",
		2801	},
		2802	"c/pets" => {
		2803	id => "infobox",
		2804	title => "Pets",
		2805	reply => undef,
		2806	tooltip => "Shows information abotu your pets/a specific pet",
		2807	},
		2808	"c/uptime" => {
		2809	id => "infobox",
		2810	title => "Uptime",
		2811	reply => undef,
		2812	tooltip => "How long the server has been running since last restart",
		2813	},
		2814	"c/mapinfo" => {
		2815	id => "infobox",
		2816	title => "Map Info",
		2817	reply => undef,
		2818	tooltip => "Information related to the maps",
		2819	},
		2820	"c/party" => {
		2821	id => "party",
		2822	title => "Party",
		2823	reply => "gsay ",
		2824	tooltip => "Messages and chat related to your party",
		2825	},
		2826	"c/death" => {
		2827	id => "death",
		2828	title => "Death",
		2829	reply => undef,
		2830	tooltip => "Reason for and more info about your most recent death",
		2831	},
		2832	"c/say" => $SAY_CHANNEL,
		2833	"c/chat" => $CHAT_CHANNEL,
		2834	);
		2835
		2836	sub cf::client::send_msg {
		2837	my ($self, $channel, $msg, $color, @extra) = @_;
		2838
		2839	$msg = $self->pl->expand_cfpod ($msg)
		2840	unless $color & cf::NDI_VERBATIM;
		2841
		2842	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2843
		2844	# check predefined channels, for the benefit of C
		2845	if ($CHANNEL{$channel}) {
		2846	$channel = $CHANNEL{$channel};
		2847
		2848	$self->ext_msg (channel_info => $channel);
		2849	$channel = $channel->{id};
		2850
		2851	} elsif (ref $channel) {
		2852	# send meta info to client, if not yet sent
		2853	unless (exists $self->{channel}{$channel->{id}}) {
		2854	$self->{channel}{$channel->{id}} = $channel;
		2855	$self->ext_msg (channel_info => $channel);
		2856	}
		2857
		2858	$channel = $channel->{id};
		2859	}
		2860
		2861	return unless @extra || length $msg;
		2862
		2863	# default colour, mask it out
		2864	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2865	if $color & cf::NDI_DEF;
		2866
		2867	my $pkt = "msg "
		2868	. $self->{json_coder}->encode (
		2869	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2870	);
		2871
		2872	# try lzf for large packets
		2873	$pkt = "lzf " . Compress::LZF::compress $pkt
		2874	if 1024 <= length $pkt and $self->{can_lzf};
		2875
		2876	# split very large packets
		2877	if (8192 < length $pkt and $self->{can_lzf}) {
		2878	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2879	$pkt = "frag";
		2880	}
		2881
		2882	$self->send_packet ($pkt);
		2883	}
		2884
		2885	=item $client->ext_msg ($type, @msg)
		2886
		2887	Sends an ext event to the client.
		2888
		2889	=cut
		2890
		2891	sub cf::client::ext_msg($$@) {
		2892	my ($self, $type, @msg) = @_;
		2893
		2894	if ($self->extcmd == 2) {
		2895	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2896	} elsif ($self->extcmd == 1) { # TODO: remove
		2897	push @msg, msgtype => "event_$type";
		2898	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2899	}
		2900	}
		2901
		2902	=item $client->ext_reply ($msgid, @msg)
		2903
		2904	Sends an ext reply to the client.
		2905
		2906	=cut
		2907
		2908	sub cf::client::ext_reply($$@) {
		2909	my ($self, $id, @msg) = @_;
		2910
		2911	if ($self->extcmd == 2) {
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2913	} elsif ($self->extcmd == 1) {
		2914	#TODO: version 1, remove
		2915	unshift @msg, msgtype => "reply", msgid => $id;
		2916	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2917	}
		2918	}
1914		2919
1915	=item $success = $client->query ($flags, "text", \&cb)	2920	=item $success = $client->query ($flags, "text", \&cb)
1916		2921
1917	Queues a query to the client, calling the given callback with	2922	Queues a query to the client, calling the given callback with
1918	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2923	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1919	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2924	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1920		2925
1921	Queries can fail, so check the return code. Or don't, as queries will become	2926	Queries can fail, so check the return code. Or don't, as queries will
1922	reliable at some point in the future.	2927	become reliable at some point in the future.
1923		2928
1924	=cut	2929	=cut
1925		2930
1926	sub cf::client::query {	2931	sub cf::client::query {
1927	my ($self, $flags, $text, $cb) = @_;	2932	my ($self, $flags, $text, $cb) = @_;
…		…
1935	utf8::encode $text;	2940	utf8::encode $text;
1936	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2941	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1937		2942
1938	$self->send_packet ($self->{query_queue}[0][0])	2943	$self->send_packet ($self->{query_queue}[0][0])
1939	if @{ $self->{query_queue} } == 1;	2944	if @{ $self->{query_queue} } == 1;
		2945
		2946	1
1940	}	2947	}
1941		2948
1942	cf::client->attach (	2949	cf::client->attach (
		2950	on_connect => sub {
		2951	my ($ns) = @_;
		2952
		2953	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2954	},
1943	on_reply => sub {	2955	on_reply => sub {
1944	my ($ns, $msg) = @_;	2956	my ($ns, $msg) = @_;
1945		2957
1946	# this weird shuffling is so that direct followup queries	2958	# this weird shuffling is so that direct followup queries
1947	# get handled first	2959	# get handled first
1948	my $queue = delete $ns->{query_queue}	2960	my $queue = delete $ns->{query_queue}
1949	or return; # be conservative, not sure how that can happen, but we saw a crash here	2961	or return; # be conservative, not sure how that can happen, but we saw a crash here
1950		2962
1951	(shift @$queue)->[1]->($msg);	2963	(shift @$queue)->[1]->($msg);
		2964	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1952		2965
1953	push @{ $ns->{query_queue} }, @$queue;	2966	push @{ $ns->{query_queue} }, @$queue;
1954		2967
1955	if (@{ $ns->{query_queue} } == @$queue) {	2968	if (@{ $ns->{query_queue} } == @$queue) {
1956	if (@$queue) {	2969	if (@$queue) {
…		…
1958	} else {	2971	} else {
1959	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2972	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1960	}	2973	}
1961	}	2974	}
1962	},	2975	},
		2976	on_exticmd => sub {
		2977	my ($ns, $buf) = @_;
		2978
		2979	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2980
		2981	if (ref $msg) {
		2982	my ($type, $reply, @payload) =
		2983	"ARRAY" eq ref $msg
		2984	? @$msg
		2985	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2986
		2987	my @reply;
		2988
		2989	if (my $cb = $EXTICMD{$type}) {
		2990	@reply = $cb->($ns, @payload);
		2991	}
		2992
		2993	$ns->ext_reply ($reply, @reply)
		2994	if $reply;
		2995
		2996	} else {
		2997	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2998	}
		2999
		3000	cf::override;
		3001	},
1963	);	3002	);
1964		3003
1965	=item $client->async (\&cb)	3004	=item $client->async (\&cb)
1966		3005
1967	Create a new coroutine, running the specified callback. The coroutine will	3006	Create a new coroutine, running the specified callback. The coroutine will
…		…
2008	our $safe = new Safe "safe";	3047	our $safe = new Safe "safe";
2009	our $safe_hole = new Safe::Hole;	3048	our $safe_hole = new Safe::Hole;
2010		3049
2011	$SIG{FPE} = 'IGNORE';	3050	$SIG{FPE} = 'IGNORE';
2012		3051
2013	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3052	$safe->permit_only (Opcode::opset qw(
		3053	:base_core :base_mem :base_orig :base_math
		3054	grepstart grepwhile mapstart mapwhile
		3055	sort time
		3056	));
2014		3057
2015	# here we export the classes and methods available to script code	3058	# here we export the classes and methods available to script code
2016		3059
2017	=pod	3060	=pod
2018		3061
2019	The following fucntions and emthods are available within a safe environment:	3062	The following functions and methods are available within a safe environment:
2020		3063
2021	cf::object contr pay_amount pay_player map	3064	cf::object
		3065	contr pay_amount pay_player map x y force_find force_add destroy
		3066	insert remove name archname title slaying race decrease split
		3067	value
		3068
2022	cf::object::player player	3069	cf::object::player
2023	cf::player peaceful	3070	player
2024	cf::map trigger	3071
		3072	cf::player
		3073	peaceful
		3074
		3075	cf::map
		3076	trigger
2025		3077
2026	=cut	3078	=cut
2027		3079
2028	for (	3080	for (
2029	["cf::object" => qw(contr pay_amount pay_player map)],	3081	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3082	insert remove inv nrof name archname title slaying race
		3083	decrease split destroy change_exp value msg lore send_msg)],
2030	["cf::object::player" => qw(player)],	3084	["cf::object::player" => qw(player)],
2031	["cf::player" => qw(peaceful)],	3085	["cf::player" => qw(peaceful send_msg)],
2032	["cf::map" => qw(trigger)],	3086	["cf::map" => qw(trigger)],
2033	) {	3087	) {
2034	no strict 'refs';	3088	no strict 'refs';
2035	my ($pkg, @funs) = @$_;	3089	my ($pkg, @funs) = @$_;
2036	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3090	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2053	my ($code, %vars) = @_;	3107	my ($code, %vars) = @_;
2054		3108
2055	my $qcode = $code;	3109	my $qcode = $code;
2056	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3110	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2057	$qcode =~ s/\n/\\n/g;	3111	$qcode =~ s/\n/\\n/g;
		3112
		3113	%vars = (_dummy => 0) unless %vars;
2058		3114
2059	local $_;	3115	local $_;
2060	local @safe::cf::_safe_eval_args = values %vars;	3116	local @safe::cf::_safe_eval_args = values %vars;
2061		3117
2062	my $eval =	3118	my $eval =
…		…
2105	=back	3161	=back
2106		3162
2107	=cut	3163	=cut
2108		3164
2109	#############################################################################	3165	#############################################################################
		3166	# the server's init and main functions
2110		3167
2111	=head2 EXTENSION DATABASE SUPPORT	3168	sub load_facedata($) {
		3169	my ($path) = @_;
2112		3170
2113	Crossfire maintains a very simple database for extension use. It can	3171	# HACK to clear player env face cache, we need some signal framework
2114	currently store anything that can be serialised using Storable, which	3172	# for this (global event?)
2115	excludes objects.	3173	%ext::player_env::MUSIC_FACE_CACHE = ();
2116		3174
2117	The parameter C<$family> should best start with the name of the extension	3175	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2118	using it, it should be unique.
2119		3176
2120	=over 4	3177	warn "loading facedata from $path\n";
2121		3178
2122	=item $hashref = cf::db_get $family	3179	my $facedata;
		3180	0 < aio_load $path, $facedata
		3181	or die "$path: $!";
2123		3182
2124	Return a hashref for use by the extension C<$family>, which can be	3183	$facedata = Coro::Storable::thaw $facedata;
2125	modified. After modifications, you have to call C<cf::db_dirty> or
2126	C<cf::db_sync>.
2127		3184
2128	=item $value = cf::db_get $family => $key	3185	$facedata->{version} == 2
		3186	or cf::cleanup "$path: version mismatch, cannot proceed.";
2129		3187
2130	Returns a single value from the database	3188	# patch in the exptable
2131		3189	$facedata->{resource}{"res/exp_table"} = {
2132	=item cf::db_put $family => $hashref	3190	type => FT_RSRC,
2133		3191	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2134	Stores the given family hashref into the database. Updates are delayed, if
2135	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2136
2137	=item cf::db_put $family => $key => $value
2138
2139	Stores the given C<$value> in the family hash. Updates are delayed, if you
2140	want the data to be synced to disk immediately, use C<cf::db_sync>.
2141
2142	=item cf::db_dirty
2143
2144	Marks the database as dirty, to be updated at a later time.
2145
2146	=item cf::db_sync
2147
2148	Immediately write the database to disk I<if it is dirty>.
2149
2150	=cut
2151
2152	our $DB;
2153
2154	{
2155	my $path = cf::localdir . "/database.pst";
2156
2157	sub db_load() {
2158	$DB = stat $path ? Storable::retrieve $path : { };
2159	}
2160
2161	my $pid;
2162
2163	sub db_save() {
2164	waitpid $pid, 0 if $pid;
2165	if (0 == ($pid = fork)) {
2166	$DB->{_meta}{version} = 1;
2167	Storable::nstore $DB, "$path~";
2168	rename "$path~", $path;
2169	cf::_exit 0 if defined $pid;
2170	}
2171	}
2172
2173	my $dirty;
2174
2175	sub db_sync() {
2176	db_save if $dirty;
2177	undef $dirty;
2178	}
2179
2180	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2181	db_sync;
2182	});	3192	};
		3193	cf::cede_to_tick;
2183		3194
2184	sub db_dirty() {
2185	$dirty = 1;
2186	$idle->start;
2187	}	3195	{
		3196	my $faces = $facedata->{faceinfo};
2188		3197
2189	sub db_get($;$) {	3198	while (my ($face, $info) = each %$faces) {
2190	@_ >= 2	3199	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2191	? $DB->{$_[0]}{$_[1]}
2192	: ($DB->{$_[0]} ||= { })
2193	}
2194		3200
2195	sub db_put($$;$) {	3201	cf::face::set_visibility $idx, $info->{visibility};
2196	if (@_ >= 3) {	3202	cf::face::set_magicmap $idx, $info->{magicmap};
2197	$DB->{$_[0]}{$_[1]} = $_[2];	3203	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2198	} else {	3204	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2199	$DB->{$_[0]} = $_[1];
2200	}
2201	db_dirty;
2202	}
2203		3205
2204	cf::global->attach (	3206	cf::cede_to_tick;
2205	prio => 10000,
2206	on_cleanup => sub {
2207	db_sync;
2208	},	3207	}
2209	);
2210	}
2211		3208
2212	#############################################################################	3209	while (my ($face, $info) = each %$faces) {
2213	# the server's main()	3210	next unless $info->{smooth};
2214		3211
2215	sub cfg_load {	3212	my $idx = cf::face::find $face
		3213	or next;
		3214
		3215	if (my $smooth = cf::face::find $info->{smooth}) {
		3216	cf::face::set_smooth $idx, $smooth;
		3217	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3218	} else {
		3219	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3220	}
		3221
		3222	cf::cede_to_tick;
		3223	}
		3224	}
		3225
		3226	{
		3227	my $anims = $facedata->{animinfo};
		3228
		3229	while (my ($anim, $info) = each %$anims) {
		3230	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3231	cf::cede_to_tick;
		3232	}
		3233
		3234	cf::anim::invalidate_all; # d'oh
		3235	}
		3236
		3237	{
		3238	# TODO: for gcfclient pleasure, we should give resources
		3239	# that gcfclient doesn't grok a >10000 face index.
		3240	my $res = $facedata->{resource};
		3241
		3242	while (my ($name, $info) = each %$res) {
		3243	if (defined $info->{type}) {
		3244	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3245	my $data;
		3246
		3247	if ($info->{type} & 1) {
		3248	# prepend meta info
		3249
		3250	my $meta = $enc->encode ({
		3251	name => $name,
		3252	%{ $info->{meta} || {} },
		3253	});
		3254
		3255	$data = pack "(w/a*)*", $meta, $info->{data};
		3256	} else {
		3257	$data = $info->{data};
		3258	}
		3259
		3260	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3261	cf::face::set_type $idx, $info->{type};
		3262	} else {
		3263	$RESOURCE{$name} = $info;
		3264	}
		3265
		3266	cf::cede_to_tick;
		3267	}
		3268	}
		3269
		3270	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3271
		3272	1
		3273	}
		3274
		3275	cf::global->attach (on_resource_update => sub {
		3276	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3277	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3278
		3279	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3280	my $sound = $soundconf->{compat}[$_]
		3281	or next;
		3282
		3283	my $face = cf::face::find "sound/$sound->[1]";
		3284	cf::sound::set $sound->[0] => $face;
		3285	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3286	}
		3287
		3288	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3289	my $face = cf::face::find "sound/$v";
		3290	cf::sound::set $k => $face;
		3291	}
		3292	}
		3293	});
		3294
		3295	register_exticmd fx_want => sub {
		3296	my ($ns, $want) = @_;
		3297
		3298	while (my ($k, $v) = each %$want) {
		3299	$ns->fx_want ($k, $v);
		3300	}
		3301	};
		3302
		3303	sub load_resource_file($) {
		3304	my $guard = lock_acquire "load_resource_file";
		3305
		3306	my $status = load_resource_file_ $_[0];
		3307	get_slot 0.1, 100;
		3308	cf::arch::commit_load;
		3309
		3310	$status
		3311	}
		3312
		3313	sub reload_regions {
		3314	# HACK to clear player env face cache, we need some signal framework
		3315	# for this (global event?)
		3316	%ext::player_env::MUSIC_FACE_CACHE = ();
		3317
		3318	load_resource_file "$MAPDIR/regions"
		3319	or die "unable to load regions file\n";
		3320
		3321	for (cf::region::list) {
		3322	$_->{match} = qr/$_->{match}/
		3323	if exists $_->{match};
		3324	}
		3325	}
		3326
		3327	sub reload_facedata {
		3328	load_facedata "$DATADIR/facedata"
		3329	or die "unable to load facedata\n";
		3330	}
		3331
		3332	sub reload_archetypes {
		3333	load_resource_file "$DATADIR/archetypes"
		3334	or die "unable to load archetypes\n";
		3335	}
		3336
		3337	sub reload_treasures {
		3338	load_resource_file "$DATADIR/treasures"
		3339	or die "unable to load treasurelists\n";
		3340	}
		3341
		3342	sub reload_resources {
		3343	warn "reloading resource files...\n";
		3344
		3345	reload_facedata;
		3346	reload_archetypes;
		3347	reload_regions;
		3348	reload_treasures;
		3349
		3350	warn "finished reloading resource files\n";
		3351	}
		3352
		3353	sub reload_config {
2216	open my $fh, "<:utf8", cf::confdir . "/config"	3354	open my $fh, "<:utf8", "$CONFDIR/config"
2217	or return;	3355	or return;
2218		3356
2219	local $/;	3357	local $/;
2220	*CFG = YAML::Syck::Load <$fh>;	3358	*CFG = YAML::Load <$fh>;
2221		3359
2222	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3360	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2223		3361
2224	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3362	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2225	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3363	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2231	};	3369	};
2232	warn $@ if $@;	3370	warn $@ if $@;
2233	}	3371	}
2234	}	3372	}
2235		3373
		3374	sub pidfile() {
		3375	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3376	or die "$PIDFILE: $!";
		3377	flock $fh, &Fcntl::LOCK_EX
		3378	or die "$PIDFILE: flock: $!";
		3379	$fh
		3380	}
		3381
		3382	# make sure only one server instance is running at any one time
		3383	sub atomic {
		3384	my $fh = pidfile;
		3385
		3386	my $pid = <$fh>;
		3387	kill 9, $pid if $pid > 0;
		3388
		3389	seek $fh, 0, 0;
		3390	print $fh $$;
		3391	}
		3392
2236	sub main {	3393	sub main {
		3394	cf::init_globals; # initialise logging
		3395
		3396	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3397	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3398	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3399	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3400
		3401	cf::init_experience;
		3402	cf::init_anim;
		3403	cf::init_attackmess;
		3404	cf::init_dynamic;
		3405
		3406	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3407
2237	# we must not ever block the main coroutine	3408	# we must not ever block the main coroutine
2238	local $Coro::idle = sub {	3409	local $Coro::idle = sub {
2239	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3410	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2240	(async {	3411	(async {
2241	Event::one_event;	3412	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3413	EV::loop EV::LOOP_ONESHOT;
2242	})->prio (Coro::PRIO_MAX);	3414	})->prio (Coro::PRIO_MAX);
2243	};	3415	};
2244		3416
2245	cfg_load;	3417	evthread_start IO::AIO::poll_fileno;
2246	db_load;	3418
		3419	cf::sync_job {
		3420	reload_resources;
		3421	reload_config;
		3422	db_init;
		3423
		3424	cf::load_settings;
		3425	cf::load_materials;
		3426	cf::init_uuid;
		3427	cf::init_signals;
		3428	cf::init_commands;
		3429	cf::init_skills;
		3430
		3431	cf::init_beforeplay;
		3432
		3433	atomic;
		3434
2247	load_extensions;	3435	load_extensions;
2248		3436
2249	$TICK_WATCHER->start;	3437	utime time, time, $RUNTIMEFILE;
		3438
		3439	# no (long-running) fork's whatsoever before this point(!)
		3440	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3441
		3442	(pop @POST_INIT)->(0) while @POST_INIT;
		3443	};
		3444
2250	Event::loop;	3445	EV::loop;
2251	}	3446	}
2252		3447
2253	#############################################################################	3448	#############################################################################
2254	# initialisation and cleanup	3449	# initialisation and cleanup
2255		3450
2256	# install some emergency cleanup handlers	3451	# install some emergency cleanup handlers
2257	BEGIN {	3452	BEGIN {
		3453	our %SIGWATCHER = ();
2258	for my $signal (qw(INT HUP TERM)) {	3454	for my $signal (qw(INT HUP TERM)) {
2259	Event->signal (	3455	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2260	data => WF_AUTOCANCEL,
2261	signal => $signal,
2262	cb => sub {
2263	cf::cleanup "SIG$signal";	3456	cf::cleanup "SIG$signal";
2264	},
2265	);	3457	};
		3458	}
		3459	}
		3460
		3461	sub write_runtime_sync {
		3462	# first touch the runtime file to show we are still running:
		3463	# the fsync below can take a very very long time.
		3464
		3465	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3466
		3467	my $guard = cf::lock_acquire "write_runtime";
		3468
		3469	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3470	or return;
		3471
		3472	my $value = $cf::RUNTIME + 90 + 10;
		3473	# 10 is the runtime save interval, for a monotonic clock
		3474	# 60 allows for the watchdog to kill the server.
		3475
		3476	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3477	and return;
		3478
		3479	# always fsync - this file is important
		3480	aio_fsync $fh
		3481	and return;
		3482
		3483	# touch it again to show we are up-to-date
		3484	aio_utime $fh, undef, undef;
		3485
		3486	close $fh
		3487	or return;
		3488
		3489	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3490	and return;
		3491
		3492	warn "runtime file written.\n";
		3493
2266	}	3494	1
		3495	}
		3496
		3497	our $uuid_lock;
		3498	our $uuid_skip;
		3499
		3500	sub write_uuid_sync($) {
		3501	$uuid_skip ||= $_[0];
		3502
		3503	return if $uuid_lock;
		3504	local $uuid_lock = 1;
		3505
		3506	my $uuid = "$LOCALDIR/uuid";
		3507
		3508	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3509	or return;
		3510
		3511	my $value = uuid_seq uuid_cur;
		3512
		3513	unless ($value) {
		3514	warn "cowardly refusing to write zero uuid value!\n";
		3515	return;
		3516	}
		3517
		3518	my $value = uuid_str $value + $uuid_skip;
		3519	$uuid_skip = 0;
		3520
		3521	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3522	and return;
		3523
		3524	# always fsync - this file is important
		3525	aio_fsync $fh
		3526	and return;
		3527
		3528	close $fh
		3529	or return;
		3530
		3531	aio_rename "$uuid~", $uuid
		3532	and return;
		3533
		3534	warn "uuid file written ($value).\n";
		3535
		3536	1
		3537
		3538	}
		3539
		3540	sub write_uuid($$) {
		3541	my ($skip, $sync) = @_;
		3542
		3543	$sync ? write_uuid_sync $skip
		3544	: async { write_uuid_sync $skip };
2267	}	3545	}
2268		3546
2269	sub emergency_save() {	3547	sub emergency_save() {
2270	my $freeze_guard = cf::freeze_mainloop;	3548	my $freeze_guard = cf::freeze_mainloop;
2271		3549
2272	warn "enter emergency perl save\n";	3550	warn "emergency_perl_save: enter\n";
2273		3551
2274	cf::sync_job {	3552	cf::sync_job {
		3553	# this is a trade-off: we want to be very quick here, so
		3554	# save all maps without fsync, and later call a global sync
		3555	# (which in turn might be very very slow)
		3556	local $USE_FSYNC = 0;
		3557
2275	# use a peculiar iteration method to avoid tripping on perl	3558	# use a peculiar iteration method to avoid tripping on perl
2276	# refcount bugs in for. also avoids problems with players	3559	# refcount bugs in for. also avoids problems with players
2277	# and maps saved/destroyed asynchronously.	3560	# and maps saved/destroyed asynchronously.
2278	warn "begin emergency player save\n";	3561	warn "emergency_perl_save: begin player save\n";
2279	for my $login (keys %cf::PLAYER) {	3562	for my $login (keys %cf::PLAYER) {
2280	my $pl = $cf::PLAYER{$login} or next;	3563	my $pl = $cf::PLAYER{$login} or next;
2281	$pl->valid or next;	3564	$pl->valid or next;
		3565	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2282	$pl->save;	3566	$pl->save;
2283	}	3567	}
2284	warn "end emergency player save\n";	3568	warn "emergency_perl_save: end player save\n";
2285		3569
2286	warn "begin emergency map save\n";	3570	warn "emergency_perl_save: begin map save\n";
2287	for my $path (keys %cf::MAP) {	3571	for my $path (keys %cf::MAP) {
2288	my $map = $cf::MAP{$path} or next;	3572	my $map = $cf::MAP{$path} or next;
2289	$map->valid or next;	3573	$map->valid or next;
2290	$map->save;	3574	$map->save;
2291	}	3575	}
2292	warn "end emergency map save\n";	3576	warn "emergency_perl_save: end map save\n";
		3577
		3578	warn "emergency_perl_save: begin database checkpoint\n";
		3579	BDB::db_env_txn_checkpoint $DB_ENV;
		3580	warn "emergency_perl_save: end database checkpoint\n";
		3581
		3582	warn "emergency_perl_save: begin write uuid\n";
		3583	write_uuid_sync 1;
		3584	warn "emergency_perl_save: end write uuid\n";
2293	};	3585	};
2294		3586
		3587	warn "emergency_perl_save: starting sync()\n";
		3588	IO::AIO::aio_sync sub {
		3589	warn "emergency_perl_save: finished sync()\n";
		3590	};
		3591
2295	warn "leave emergency perl save\n";	3592	warn "emergency_perl_save: leave\n";
2296	}	3593	}
2297		3594
		3595	sub post_cleanup {
		3596	my ($make_core) = @_;
		3597
		3598	warn Carp::longmess "post_cleanup backtrace"
		3599	if $make_core;
		3600
		3601	my $fh = pidfile;
		3602	unlink $PIDFILE if <$fh> == $$;
		3603	}
		3604
		3605	# a safer delete_package, copied from Symbol
		3606	sub clear_package($) {
		3607	my $pkg = shift;
		3608
		3609	# expand to full symbol table name if needed
		3610	unless ($pkg =~ /^main::.*::$/) {
		3611	$pkg = "main$pkg" if $pkg =~ /^::/;
		3612	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3613	$pkg .= '::' unless $pkg =~ /::$/;
		3614	}
		3615
		3616	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3617	my $stem_symtab = *{$stem}{HASH};
		3618
		3619	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3620	or return;
		3621
		3622	# clear all symbols
		3623	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3624	for my $name (keys %$leaf_symtab) {
		3625	_gv_clear *{"$pkg$name"};
		3626	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3627	}
		3628	warn "cleared package $pkg\n";#d#
		3629	}
		3630
2298	sub reload() {	3631	sub do_reload_perl() {
2299	# can/must only be called in main	3632	# can/must only be called in main
2300	if ($Coro::current != $Coro::main) {	3633	if ($Coro::current != $Coro::main) {
2301	warn "can only reload from main coroutine";	3634	warn "can only reload from main coroutine";
2302	return;	3635	return;
2303	}	3636	}
2304		3637
		3638	return if $RELOAD++;
		3639
		3640	my $t1 = EV::time;
		3641
		3642	while ($RELOAD) {
2305	warn "reloading...";	3643	warn "reloading...";
2306		3644
2307	warn "cancelling server ticker";	3645	warn "entering sync_job";
2308	$TICK_WATCHER->cancel;
2309		3646
		3647	cf::sync_job {
		3648	cf::write_runtime_sync; # external watchdog should not bark
2310	cf::emergency_save;	3649	cf::emergency_save;
		3650	cf::write_runtime_sync; # external watchdog should not bark
2311		3651
2312	eval {	3652	warn "syncing database to disk";
		3653	BDB::db_env_txn_checkpoint $DB_ENV;
		3654
2313	# if anything goes wrong in here, we should simply crash as we already saved	3655	# if anything goes wrong in here, we should simply crash as we already saved
2314		3656
2315	warn "syncing database to disk";
2316	cf::db_sync;
2317
2318	warn "cancelling all WF_AUTOCANCEL watchers";
2319	for (Event::all_watchers) {
2320	$_->cancel if $_->data & WF_AUTOCANCEL;
2321	}
2322
2323	warn "flushing outstanding aio requests";	3657	warn "flushing outstanding aio requests";
2324	for (;;) {	3658	while (IO::AIO::nreqs || BDB::nreqs) {
2325	IO::AIO::flush;	3659	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2326	Coro::cede;
2327	last unless IO::AIO::nreqs;
2328	warn "iterate...";
2329	}
2330
2331	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();
2334
2335	warn "removing commands";
2336	%COMMAND = ();
2337
2338	warn "removing ext commands";
2339	%EXTCMD = ();
2340
2341	warn "unloading/nuking all extensions";
2342	for my $pkg (@EXTS) {
2343	warn "... unloading $pkg";
2344
2345	if (my $cb = $pkg->can ("unload")) {
2346	eval {
2347	$cb->($pkg);
2348	1
2349	} or warn "$pkg unloaded, but with errors: $@";
2350	}	3660	}
2351		3661
2352	warn "... nuking $pkg";	3662	warn "cancelling all extension coros";
2353	Symbol::delete_package $pkg;	3663	$_->cancel for values %EXT_CORO;
2354	}	3664	%EXT_CORO = ();
2355		3665
2356	warn "unloading all perl modules loaded from $LIBDIR";	3666	warn "removing commands";
2357	while (my ($k, $v) = each %INC) {	3667	%COMMAND = ();
2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2359		3668
		3669	warn "removing ext/exti commands";
		3670	%EXTCMD = ();
		3671	%EXTICMD = ();
		3672
		3673	warn "unloading/nuking all extensions";
		3674	for my $pkg (@EXTS) {
2360	warn "... unloading $k";	3675	warn "... unloading $pkg";
2361	delete $INC{$k};
2362		3676
2363	$k =~ s/\.pm$//;
2364	$k =~ s/\//::/g;
2365
2366	if (my $cb = $k->can ("unload_module")) {	3677	if (my $cb = $pkg->can ("unload")) {
		3678	eval {
2367	$cb->();	3679	$cb->($pkg);
		3680	1
		3681	} or warn "$pkg unloaded, but with errors: $@";
		3682	}
		3683
		3684	warn "... clearing $pkg";
		3685	clear_package $pkg;
2368	}	3686	}
2369		3687
2370	Symbol::delete_package $k;	3688	warn "unloading all perl modules loaded from $LIBDIR";
		3689	while (my ($k, $v) = each %INC) {
		3690	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3691
		3692	warn "... unloading $k";
		3693	delete $INC{$k};
		3694
		3695	$k =~ s/\.pm$//;
		3696	$k =~ s/\//::/g;
		3697
		3698	if (my $cb = $k->can ("unload_module")) {
		3699	$cb->();
		3700	}
		3701
		3702	clear_package $k;
2371	}	3703	}
2372		3704
2373	warn "getting rid of safe::, as good as possible";	3705	warn "getting rid of safe::, as good as possible";
2374	Symbol::delete_package "safe::$_"	3706	clear_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3707	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		3708
2377	warn "unloading cf.pm \"a bit\"";	3709	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	3710	delete $INC{"cf.pm"};
		3711	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2379		3712
2380	# don't, removes xs symbols, too,	3713	# don't, removes xs symbols, too,
2381	# and global variables created in xs	3714	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	3715	#clear_package __PACKAGE__;
2383		3716
2384	warn "unload completed, starting to reload now";	3717	warn "unload completed, starting to reload now";
2385		3718
2386	warn "reloading cf.pm";	3719	warn "reloading cf.pm";
2387	require cf;	3720	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3721	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3722
2390	warn "loading config and database again";	3723	warn "loading config and database again";
2391	cf::cfg_load;	3724	cf::reload_config;
2392	cf::db_load;
2393		3725
2394	warn "loading extensions";	3726	warn "loading extensions";
2395	cf::load_extensions;	3727	cf::load_extensions;
2396		3728
		3729	if ($REATTACH_ON_RELOAD) {
2397	warn "reattaching attachments to objects/players";	3730	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3731	_global_reattach; # objects, sockets
2399	warn "reattaching attachments to maps";	3732	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3733	reattach $_ for values %MAP;
		3734	warn "reattaching attachments to players";
		3735	reattach $_ for values %PLAYER;
		3736	}
2401		3737
2402	warn "restarting server ticker";	3738	warn "running post_init jobs";
		3739	(pop @POST_INIT)->(1) while @POST_INIT;
2403		3740
2404	$TICK_WATCHER->start;	3741	warn "leaving sync_job";
		3742
		3743	1
		3744	} or do {
		3745	warn $@;
		3746	cf::cleanup "error while reloading, exiting.";
		3747	};
		3748
		3749	warn "reloaded";
		3750	--$RELOAD;
		3751	}
		3752
		3753	$t1 = EV::time - $t1;
		3754	warn "reload completed in ${t1}s\n";
		3755	};
		3756
		3757	our $RELOAD_WATCHER; # used only during reload
		3758
		3759	sub reload_perl() {
		3760	# doing reload synchronously and two reloads happen back-to-back,
		3761	# coro crashes during coro_state_free->destroy here.
		3762
		3763	$RELOAD_WATCHER ||= cf::async {
		3764	Coro::AIO::aio_wait cache_extensions;
		3765
		3766	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3767	do_reload_perl;
		3768	undef $RELOAD_WATCHER;
		3769	};
2405	};	3770	};
2406		3771	}
2407	if ($@) {
2408	warn $@;
2409	warn "error while reloading, exiting.";
2410	exit 1;
2411	}
2412
2413	warn "reloaded";
2414	};
2415
2416	our $RELOAD_WATCHER; # used only during reload
2417		3772
2418	register_command "reload" => sub {	3773	register_command "reload" => sub {
2419	my ($who, $arg) = @_;	3774	my ($who, $arg) = @_;
2420		3775
2421	if ($who->flag (FLAG_WIZ)) {	3776	if ($who->flag (FLAG_WIZ)) {
2422	$who->message ("reloading server.");	3777	$who->message ("reloading server.");
2423		3778	async {
2424	# doing reload synchronously and two reloads happen back-to-back,	3779	$Coro::current->{desc} = "perl_reload";
2425	# coro crashes during coro_state_free->destroy here.
2426
2427	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2428	reload;	3780	reload_perl;
2429	undef $RELOAD_WATCHER;
2430	});	3781	};
2431	}	3782	}
2432	};	3783	};
2433		3784
2434	unshift @INC, $LIBDIR;	3785	unshift @INC, $LIBDIR;
2435		3786
2436	my $bug_warning = 0;	3787	my $bug_warning = 0;
2437		3788
2438	$TICK_WATCHER = Event->timer (	3789	our @WAIT_FOR_TICK;
2439	reentrant => 0,	3790	our @WAIT_FOR_TICK_BEGIN;
2440	parked => 1,	3791
2441	prio => 0,	3792	sub wait_for_tick {
2442	at => $NEXT_TICK || $TICK,	3793	return if tick_inhibit || $Coro::current == $Coro::main;
2443	data => WF_AUTOCANCEL,	3794
2444	cb => sub {	3795	my $signal = new Coro::Signal;
		3796	push @WAIT_FOR_TICK, $signal;
		3797	$signal->wait;
		3798	}
		3799
		3800	sub wait_for_tick_begin {
		3801	return if tick_inhibit || $Coro::current == $Coro::main;
		3802
		3803	my $signal = new Coro::Signal;
		3804	push @WAIT_FOR_TICK_BEGIN, $signal;
		3805	$signal->wait;
		3806	}
		3807
		3808	sub tick {
2445	if ($Coro::current != $Coro::main) {	3809	if ($Coro::current != $Coro::main) {
2446	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3810	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2447	unless ++$bug_warning > 10;	3811	unless ++$bug_warning > 10;
2448	return;	3812	return;
2449	}	3813	}
2450		3814
2451	$NOW = Event::time;
2452
2453	cf::server_tick; # one server iteration	3815	cf::server_tick; # one server iteration
2454	$RUNTIME += $TICK;
2455	$NEXT_TICK += $TICK;
2456		3816
2457	$WAIT_FOR_TICK->broadcast;	3817	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2458	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3818	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2459		3819	Coro::async_pool {
2460	# if we are delayed by four ticks or more, skip them all	3820	$Coro::current->{desc} = "runtime saver";
2461	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2462
2463	$TICK_WATCHER->at ($NEXT_TICK);
2464	$TICK_WATCHER->start;
2465	},
2466	);
2467
2468	IO::AIO::max_poll_time $TICK * 0.2;
2469
2470	$AIO_POLL_WATCHER = Event->io (
2471	fd => IO::AIO::poll_fileno,
2472	poll => 'r',
2473	prio => 5,
2474	data => WF_AUTOCANCEL,
2475	cb => \&IO::AIO::poll_cb,
2476	);
2477
2478	$WRITE_RUNTIME_WATCHER = Event->timer (
2479	data => WF_AUTOCANCEL,
2480	after => 1,
2481	interval => 10,
2482	cb => Coro::unblock_sub {
2483	write_runtime	3821	write_runtime_sync
2484	or warn "ERROR: unable to write runtime file: $!";	3822	or warn "ERROR: unable to write runtime file: $!";
		3823	};
2485	},	3824	}
2486	);	3825
		3826	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3827	$sig->send;
		3828	}
		3829	while (my $sig = shift @WAIT_FOR_TICK) {
		3830	$sig->send;
		3831	}
		3832
		3833	$LOAD = ($NOW - $TICK_START) / $TICK;
		3834	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3835
		3836	if (0) {
		3837	if ($NEXT_TICK) {
		3838	my $jitter = $TICK_START - $NEXT_TICK;
		3839	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3840	warn "jitter $JITTER\n";#d#
		3841	}
		3842	}
		3843	}
		3844
		3845	{
		3846	# configure BDB
		3847
		3848	BDB::min_parallel 8;
		3849	BDB::max_poll_reqs $TICK * 0.1;
		3850	$AnyEvent::BDB::WATCHER->priority (1);
		3851
		3852	unless ($DB_ENV) {
		3853	$DB_ENV = BDB::db_env_create;
		3854	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3855	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3856	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3857	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3858	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3859
		3860	cf::sync_job {
		3861	eval {
		3862	BDB::db_env_open
		3863	$DB_ENV,
		3864	$BDBDIR,
		3865	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3866	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3867	0666;
		3868
		3869	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3870	};
		3871
		3872	cf::cleanup "db_env_open(db): $@" if $@;
		3873	};
		3874	}
		3875
		3876	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3877	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3878	};
		3879	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3880	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3881	};
		3882	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3883	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3884	};
		3885	}
		3886
		3887	{
		3888	# configure IO::AIO
		3889
		3890	IO::AIO::min_parallel 8;
		3891	IO::AIO::max_poll_time $TICK * 0.1;
		3892	undef $AnyEvent::AIO::WATCHER;
		3893	}
		3894
		3895	my $_log_backtrace;
		3896
		3897	sub _log_backtrace {
		3898	my ($msg, @addr) = @_;
		3899
		3900	$msg =~ s/\n//;
		3901
		3902	# limit the # of concurrent backtraces
		3903	if ($_log_backtrace < 2) {
		3904	++$_log_backtrace;
		3905	my $perl_bt = Carp::longmess $msg;
		3906	async {
		3907	$Coro::current->{desc} = "abt $msg";
		3908
		3909	my @bt = fork_call {
		3910	@addr = map { sprintf "%x", $_ } @addr;
		3911	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3912	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3913	or die "addr2line: $!";
		3914
		3915	my @funcs;
		3916	my @res = <$fh>;
		3917	chomp for @res;
		3918	while (@res) {
		3919	my ($func, $line) = splice @res, 0, 2, ();
		3920	push @funcs, "[$func] $line";
		3921	}
		3922
		3923	@funcs
		3924	};
		3925
		3926	LOG llevInfo, "[ABT] $perl_bt\n";
		3927	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3928	LOG llevInfo, "[ABT] $_\n" for @bt;
		3929	--$_log_backtrace;
		3930	};
		3931	} else {
		3932	LOG llevInfo, "[ABT] $msg\n";
		3933	LOG llevInfo, "[ABT] [suppressed]\n";
		3934	}
		3935	}
		3936
		3937	# load additional modules
		3938	require "cf/$_.pm" for @EXTRA_MODULES;
2487		3939
2488	END { cf::emergency_save }	3940	END { cf::emergency_save }
2489		3941
2490	1	3942	1
2491		3943

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