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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.250 by root, Wed Apr 18 14:24:10 2007 UTC vs.
Revision 1.370 by root, Thu Sep 13 10:59:41 2007 UTC

…		…
10	use Event;	10	use Event;
11	use Opcode;	11	use Opcode;
12	use Safe;	12	use Safe;
13	use Safe::Hole;	13	use Safe::Hole;
14		14
15	use Coro 3.61 ();	15	use Coro 3.64 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::Event;
19	use Coro::Timer;	19	use Coro::Timer;
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
24		25
		26	use JSON::XS ();
25	use BDB ();	27	use BDB ();
26	use Data::Dumper;	28	use Data::Dumper;
27	use Digest::MD5;	29	use Digest::MD5;
28	use Fcntl;	30	use Fcntl;
29	use YAML::Syck ();	31	use YAML::Syck ();
30	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
31	use Time::HiRes;	33	use Time::HiRes;
32	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
33		36
34	# configure various modules to our taste	37	# configure various modules to our taste
35	#	38	#
36	$Storable::canonical = 1; # reduce rsync transfers	39	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	52	our %COMMAND = ();
50	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
51		54
52	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
56		60
57	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
58	our @EVENT;	62	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	63
		64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
60		75
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;	77	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	80	our $NEXT_TICK;
66	our $NOW;	81	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	82	our $USE_FSYNC = 1; # use fsync to write maps - default off
68		83
69	our $BDB_POLL_WATCHER;	84	our $BDB_POLL_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	87	our $DB_ENV;
71		88
72	our %CFG;	89	our %CFG;
73		90
74	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	92	our $RUNTIME;
76		93
77	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	96	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		97
83	# used to convert map paths into valid unix filenames by replacing / by ∕	98	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
		104
86	binmode STDOUT;	105	binmode STDOUT;
87	binmode STDERR;	106	binmode STDERR;
88		107
89	# read virtual server time, if available	108	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
91	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
92	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
93	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
94	}	113	}
95		114
96	mkdir cf::localdir;	115	mkdir $_
97	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir cf::localdir . "/" . cf::tmpdir;
99	mkdir cf::localdir . "/" . cf::uniquedir;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		117
103	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
104		119
105	sub cf::map::normalise;	120	sub cf::map::normalise;
106		121
…		…
117	=item $cf::RUNTIME	132	=item $cf::RUNTIME
118		133
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	135	every server tick.
121		136
122	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		140
124	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
126		145
127	=item $cf::NOW	146	=item $cf::NOW
128		147
129	The time of the last (current) server tick.	148	The time of the last (current) server tick.
130		149
131	=item $cf::TICK	150	=item $cf::TICK
132		151
133	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
134		163
135	=item %cf::CFG	164	=item %cf::CFG
136		165
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
138	from wherever your confdir points to.	167	from wherever your confdir points to.
…		…
141		170
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	172	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
		180
146	=back	181	=back
147		182
148	=cut	183	=cut
149		184
150	BEGIN {	185	BEGIN {
…		…
152	my $msg = join "", @_;	187	my $msg = join "", @_;
153		188
154	$msg .= "\n"	189	$msg .= "\n"
155	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
156		191
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		193
159	utf8::encode $msg;
160	LOG llevError, $msg;	194	LOG llevError, $msg;
161	};	195	};
162	}	196	}
163		197
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		205
171	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	207	# within the Safe compartment.
173	for my $pkg (qw(	208	for my $pkg (qw(
174	cf::global cf::attachable	209	cf::global cf::attachable
…		…
182	}	217	}
183		218
184	$Event::DIED = sub {	219	$Event::DIED = sub {
185	warn "error in event callback: @_";	220	warn "error in event callback: @_";
186	};	221	};
		222
		223	#############################################################################
187		224
188	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
189		226
190	=over 4	227	=over 4
191		228
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	248	$d
212	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
213	}	250	}
214		251
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
218		253
219	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
220		255
221	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
222		257
223	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
		259
		260	=cut
		261
		262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		263
		264	sub to_json ($) { $json_coder->encode ($_[0]) }
		265	sub from_json ($) { $json_coder->decode ($_[0]) }
224		266
225	=item cf::lock_wait $string	267	=item cf::lock_wait $string
226		268
227	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
228		270
…		…
231	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
234	returned.	276	returned.
235		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
236	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
238		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
239	=cut	288	=cut
240		289
241	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
242		292
243	sub lock_wait($) {	293	sub lock_wait($) {
244	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
245		300
246	# wait for lock, if any	301	# wait for lock, if any
247	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;	304	Coro::schedule;
…		…
255		310
256	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
257	lock_wait $key;	312	lock_wait $key;
258		313
259	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
260		316
261	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
262	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
264	}	321	}
		322	}
		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
265	}	328	}
266		329
267	sub freeze_mainloop {	330	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
269		332
…		…
272	};	335	};
273	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
274	$guard	337	$guard
275	}	338	}
276		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
277	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
278		397
279	Currently the same as Coro::async_pool, meaning you cannot use	398	Currently the same as Coro::async_pool, meaning you cannot use
280	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
281	thing you are allowed to do is call C<prio> on it.	400	thing you are allowed to do is call C<prio> on it.
…		…
284		403
285	BEGIN { *async = \&Coro::async_pool }	404	BEGIN { *async = \&Coro::async_pool }
286		405
287	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
288		407
289	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
292		412
293	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
296	fast or be very important.	416	fast or be very important.
…		…
299		419
300	sub sync_job(&) {	420	sub sync_job(&) {
301	my ($job) = @_;	421	my ($job) = @_;
302		422
303	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
304	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
306		428
307	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	430	# (but this is cancel-safe)
…		…
319		441
320	while ($busy) {	442	while ($busy) {
321	Coro::cede or Event::one_event;	443	Coro::cede or Event::one_event;
322	}	444	}
323		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
		452
324	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
325	} else {	454	} else {
326	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
327		456
328	$job->()	457	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
348		477
349	$coro	478	$coro
350	}	479	}
351		480
352	sub write_runtime {	481	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		482
355	my $runtime = cf::localdir . "/runtime";	483	Executes the given code block with the given arguments in a seperate
		484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
356		487
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	488	=cut
358	or return;
359		489
360	my $value = $cf::RUNTIME + 90 + 10;	490	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	491	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		492
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	493	# we seemingly have to make a local copy of the whole thing,
365	and return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
366		496
367	# always fsync - this file is important	497	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	498	reset_signals;
369	and return;	499	&$cb
		500	}, @args;
370		501
371	close $fh	502	wantarray ? @res : $res[-1]
372	or return;	503	}
373		504
374	aio_rename "$runtime~", $runtime	505	=item $value = cf::db_get $family => $key
375	and return;
376		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
377	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
378	}	630	}
379		631
380	=item cf::datalog type => key => value, ...	632	=item cf::datalog type => key => value, ...
381		633
382	Log a datalog packet of the given type with the given key-value pairs.	634	Log a datalog packet of the given type with the given key-value pairs.
…		…
400	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
402		654
403	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	657	Crossfire TRT).
406		658
407	=over 4	659	=over 4
408		660
409	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
410		662
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
574		826
575	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		831
580	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	833	my $pkg = shift @arg;
582		834
583	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
613	}	865	}
614		866
615	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
616	} else {	868	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	870	}
619		871
620	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
621	}	873	}
622		874
…		…
624	if (ref $_[0]) {	876	if (ref $_[0]) {
625	_object_attach @_;	877	_object_attach @_;
626	} else {	878	} else {
627	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
628	}	880	}
		881	_recalc_want;
629	};	882	};
630		883
631	# all those should be optimised	884	# all those should be optimised
632	sub cf::attachable::detach {	885	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
637	reattach ($obj);	890	reattach ($obj);
638	} else {	891	} else {
639	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
640	}	893	}
		894	_recalc_want;
641	};	895	};
642		896
643	sub cf::attachable::attached {	897	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
645		899
…		…
660	";	914	";
661	die if $@;	915	die if $@;
662	}	916	}
663		917
664	our $override;	918	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		920
667	sub override {	921	sub override {
668	$override = 1;	922	$override = 1;
669	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
670	}	924	}
671		925
672	sub do_invoke {	926	sub do_invoke {
673	my $event = shift;	927	my $event = shift;
674	my $callbacks = shift;	928	my $callbacks = shift;
675		929
676	@invoke_results = ();	930	@INVOKE_RESULTS = ();
677		931
678	local $override;	932	local $override;
679		933
680	for (@$callbacks) {	934	for (@$callbacks) {
681	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
698		952
699	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
700		954
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		958
705	=back	959	=back
706		960
707	=cut	961	=cut
708		962
709	#############################################################################	963	#############################################################################
710	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
711		976
712	sub reattach {	977	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	979	my ($obj) = @_;
715		980
…		…
760	);	1025	);
761		1026
762	sub object_freezer_save {	1027	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
764		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
765	sync_job {	1032	sync_job {
766	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
769		1037
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1041	aio_fsync $fh if $cf::USE_FSYNC;
…		…
792	}	1060	}
793	} else {	1061	} else {
794	aio_unlink $filename;	1062	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
796	}	1064	}
797	}	1065	};
		1066
		1067	undef $guard;
798	}	1068	}
799		1069
800	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
802		1072
…		…
807		1077
808	sub object_thawer_load {	1078	sub object_thawer_load {
809	my ($filename) = @_;	1079	my ($filename) = @_;
810		1080
811	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
812		1084
813	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
814	or return;	1086	or return;
815		1087
816	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
818	or return;	1090	or return;
		1091
		1092	undef $guard;
819	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1094	}
821		1095
		1096	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
824	return ($data, $av);	1100	($data, $av)
825	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
826		1108
827	#############################################################################	1109	#############################################################################
828	# command handling &c	1110	# command handling &c
829		1111
830	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1126	}
845		1127
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1129
848	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
849		1135
850	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
851	called.	1137	called.
852		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
853	=cut	1150	=cut
854		1151
855	sub register_extcmd {	1152	sub register_extcmd {
856	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
857		1154
858	$EXTCMD{$name} = $cb;	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
859	}	1162	}
860		1163
861	cf::player->attach (	1164	cf::player->attach (
862	on_command => sub {	1165	on_command => sub {
863	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1175	cf::override;
873	},	1176	},
874	on_extcmd => sub {	1177	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
876		1179
877	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1181
879	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
885	} else {	1197	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1199	}
888		1200
889	cf::override;	1201	cf::override;
890	},	1202	},
891	);	1203	);
892		1204
893	sub load_extension {
894	my ($path) = @_;
895
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
897	my $base = $1;
898	my $pkg = $1;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}
921	die $@;
922	}
923
924	push @EXTS, $pkg;
925	}
926
927	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
928	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1210	next unless -r $path;
930	eval {	1211
931	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
932	1	1269	}
933	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
934	}	1275	};
935	}	1276	}
936		1277
937	#############################################################################	1278	#############################################################################
938		1279
		1280	=back
		1281
939	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
940		1283
941	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
942		1285
943	=cut	1286	=cut
…		…
948		1291
949	=head3 cf::player	1292	=head3 cf::player
950		1293
951	=over 4	1294	=over 4
952		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
953	=item cf::player::find $login	1310	=item cf::player::find $login
954		1311
955	Returns the given player object, loading it if necessary (might block).	1312	Returns the given player object, loading it if necessary (might block).
956		1313
957	=cut	1314	=cut
958		1315
959	sub playerdir($) {	1316	sub playerdir($) {
960	cf::localdir	1317	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1319	}
966		1320
967	sub path($) {	1321	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1352	aio_unlink +(playerdir $login) . "/$login.pl";
999		1353
1000	my $pl = load_pl path $login	1354	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
1003	}	1363	}
1004	}	1364	}
1005	}	1365	}
1006		1366
…		…
1016		1376
1017	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1019		1379
1020	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1021	Coro::cede;	1381	cf::cede_to_tick;
1022	}	1382	}
1023		1383
1024	sub new($) {	1384	sub new($) {
1025	my ($login) = @_;	1385	my ($login) = @_;
1026		1386
…		…
1030	$self->{deny_save} = 1;	1390	$self->{deny_save} = 1;
1031		1391
1032	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1033		1393
1034	$self	1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
1035	}	1405	}
1036		1406
1037	=item $pl->quit_character	1407	=item $pl->quit_character
1038		1408
1039	Nukes the player without looking back. If logged in, the connection will	1409	Nukes the player without looking back. If logged in, the connection will
…		…
1088	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1089		1459
1090	=cut	1460	=cut
1091		1461
1092	sub list_logins {	1462	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1464	or return [];
1095		1465
1096	my @logins;	1466	my @logins;
1097		1467
1098	for my $login (@$dirs) {	1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1102		1477
1103	utf8::decode $login;	1478	utf8::decode $login;
1104	push @logins, $login;	1479	push @logins, $login;
1105	}	1480	}
1106		1481
…		…
1133	}	1508	}
1134		1509
1135	\@paths	1510	\@paths
1136	}	1511	}
1137		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
1138	=item $player->ext_reply ($msgid, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1139		1565
1140	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1141		1567
1142	=cut	1568	=cut
1143		1569
1144	sub ext_reply($$%) {	1570	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1146		1572
1147	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1574	}
1151		1575
1152	=item $player->ext_event ($type, %msg)	1576	=item $player->ext_msg ($type, @msg)
1153		1577
1154	Sends an ext event to the client.	1578	Sends an ext event to the client.
1155		1579
1156	=cut	1580	=cut
1157		1581
1158	sub ext_event($$%) {	1582	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1583	my ($self, $type, @msg) = @_;
1160		1584
1161	$self->ns->ext_event ($type, %msg);	1585	$self->ns->ext_msg ($type, @msg);
1162	}	1586	}
1163		1587
1164	=head3 cf::region	1588	=head3 cf::region
1165		1589
1166	=over 4	1590	=over 4
…		…
1169		1593
1170	package cf::region;	1594	package cf::region;
1171		1595
1172	=item cf::region::find_by_path $path	1596	=item cf::region::find_by_path $path
1173		1597
1174	Tries to decuce the probable region for a map knowing only its path.	1598	Tries to decuce the likely region for a map knowing only its path.
1175		1599
1176	=cut	1600	=cut
1177		1601
1178	sub find_by_path($) {	1602	sub find_by_path($) {
1179	my ($path) = @_;	1603	my ($path) = @_;
1180		1604
1181	my ($match, $specificity);	1605	my ($match, $specificity);
1182		1606
1183	for my $region (list) {	1607	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1608	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1609	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1610	if $region->specificity > $specificity;
1187	}	1611	}
1188	}	1612	}
1189		1613
…		…
1253	my ($self, $merge) = @_;	1677	my ($self, $merge) = @_;
1254		1678
1255	# we have to keep some variables in memory intact	1679	# we have to keep some variables in memory intact
1256	local $self->{path};	1680	local $self->{path};
1257	local $self->{load_path};	1681	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1682
1261	$self->SUPER::thawer_merge ($merge);	1683	$self->SUPER::thawer_merge ($merge);
1262	}	1684	}
1263		1685
1264	sub normalise {	1686	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1733	$self->init; # pass $1 etc.
1312	return $self;	1734	return $self;
1313	}	1735	}
1314	}	1736	}
1315		1737
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1739	()
1318	}	1740	}
1319		1741
1320	sub init {	1742	sub init {
1321	my ($self) = @_;	1743	my ($self) = @_;
…		…
1336		1758
1337	# the original (read-only) location	1759	# the original (read-only) location
1338	sub load_path {	1760	sub load_path {
1339	my ($self) = @_;	1761	my ($self) = @_;
1340		1762
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1763	"$MAPDIR/$self->{path}.map"
1342	}	1764	}
1343		1765
1344	# the temporary/swap location	1766	# the temporary/swap location
1345	sub save_path {	1767	sub save_path {
1346	my ($self) = @_;	1768	my ($self) = @_;
1347		1769
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1771	"$TMPDIR/$path.map"
1350	}	1772	}
1351		1773
1352	# the unique path, undef == no special unique path	1774	# the unique path, undef == no special unique path
1353	sub uniq_path {	1775	sub uniq_path {
1354	my ($self) = @_;	1776	my ($self) = @_;
1355		1777
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1779	"$UNIQUEDIR/$path"
1358	}	1780	}
1359		1781
1360	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1361	# all maps in C++...	1783	# all maps in C++...
1362	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1364		1786
1365	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1367	}	1789	}
1368		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
1369	sub unlink_save {	1799	sub unlink_save {
1370	my ($self) = @_;	1800	my ($self) = @_;
1371		1801
1372	utf8::encode (my $save = $self->save_path);	1802	utf8::encode (my $save = $self->save_path);
1373	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1376		1806
1377	sub load_header_from($) {	1807	sub load_header_from($) {
1378	my ($self, $path) = @_;	1808	my ($self, $path) = @_;
1379		1809
1380	utf8::encode $path;	1810	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1812	or return;
		1813
		1814	$self->_load_header ($f)
		1815	or return;
		1816
		1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
1386		1819
1387	$self->{load_path} = $path;	1820	$self->{load_path} = $path;
1388		1821
1389	1	1822	1
1390	}	1823	}
…		…
1429	$self->load_header_orig	1862	$self->load_header_orig
1430	or return;	1863	or return;
1431	$self->prepare_orig;	1864	$self->prepare_orig;
1432	}	1865	}
1433		1866
		1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
		1869
1434	$self->default_region (cf::region::find_by_path $self->{path})	1870	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1871	unless $self->default_region;
1436		1872
1437	1	1873	1
1438	}	1874	}
…		…
1441	sub find {	1877	sub find {
1442	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1443		1879
1444	$path = normalise $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1445		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1883	cf::lock_wait "map_find:$path";
1447		1884
1448	$cf::MAP{$path} || do {	1885	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1888
1450	my $map = new_from_path cf::map $path	1889	my $map = new_from_path cf::map $path
1451	or return;	1890	or return;
1452		1891
1453	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1454		1893
1455	$map->load_header	1894	$map->load_header
1456	or return;	1895	or return;
1457		1896
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1898	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1461	$map->reset;	1902	$map->reset;
1462	undef $guard;
1463	return find $path;	1903	return find $path;
1464	}	1904	}
1465		1905
1466	$cf::MAP{$path} = $map	1906	$cf::MAP{$path} = $map
1467	}	1907	}
…		…
1474	my ($self) = @_;	1914	my ($self) = @_;
1475		1915
1476	local $self->{deny_reset} = 1; # loading can take a long time	1916	local $self->{deny_reset} = 1; # loading can take a long time
1477		1917
1478	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1921	my $guard = cf::lock_acquire "map_data:$path";
1480		1922
		1923	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		1925
1483	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1484		1927
1485	$self->alloc;	1928	$self->alloc;
1486		1929
1487	$self->pre_load;	1930	$self->pre_load;
1488	Coro::cede;	1931	cf::cede_to_tick;
1489		1932
1490	$self->_load_objects ($self->{load_path}, 1)	1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1491	or return;	1936	or return;
1492		1937
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1494	if delete $self->{load_original};	1939	if delete $self->{load_original};
1495		1940
1496	if (my $uniq = $self->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	1942	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	1945	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1501	}	1949	}
1502	}	1950	}
1503		1951
1504	Coro::cede;	1952	$f->resolve_delayed_derefs;
		1953
		1954	cf::cede_to_tick;
1505	# now do the right thing for maps	1955	# now do the right thing for maps
1506	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1958	unless $self->difficulty;
1517	Coro::cede;	1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1518	$self->activate;	1968	$self->activate;
1519	Coro::cede;	1969	}
		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
		1974	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1975	}
1521		1976
1522	$self->post_load;	1977	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1978	}
1527		1979
1528	sub customise_for {	1980	sub customise_for {
1529	my ($self, $ob) = @_;	1981	my ($self, $ob) = @_;
1530		1982
1531	return find "~" . $ob->name . "/" . $self->{path}	1983	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1984	if $self->per_player;
1533		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
1534	$self	1989	$self
1535	}	1990	}
1536		1991
1537	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	1993	sub load_neighbours {
1539	my ($map) = @_;	1994	my ($map) = @_;
1540		1995
1541	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1542		1997
1543	for (0 .. 3) {	1998	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1545	or next;	2000	or next;
1546	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1547	or next;	2002	or next;
1548	$neigh->load;	2003	$neigh->load;
1549		2004
		2005	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2008	}
1553		2009
1554	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1556	or next;	2013	or next;
1557	$neigh->load;	2014	$neigh->load;
1558	}	2015	}
1559	}	2016	}
1560		2017
…		…
1565	}	2022	}
1566		2023
1567	sub do_load_sync {	2024	sub do_load_sync {
1568	my ($map) = @_;	2025	my ($map) = @_;
1569		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1570	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1571	}	2031	}
1572		2032
1573	our %MAP_PREFETCH;	2033	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2034	our $MAP_PREFETCHER = undef;
1575		2035
1576	sub find_async {	2036	sub find_async {
1577	my ($path, $origin) = @_;	2037	my ($path, $origin, $load) = @_;
1578		2038
1579	$path = normalise $path, $origin && $origin->{path};	2039	$path = normalise $path, $origin && $origin->{path};
1580		2040
1581	if (my $map = $cf::MAP{$path}) {	2041	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1583	}	2043	}
1584		2044
1585	undef $MAP_PREFETCH{$path};	2045	$MAP_PREFETCH{$path} |= $load;
		2046
1586	$MAP_PREFETCHER ||= cf::async {	2047	$MAP_PREFETCHER ||= cf::async {
1587	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2050	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2051	$map->load if $v;
		2052	}
1592		2053
1593	delete $MAP_PREFETCH{$path};	2054	delete $MAP_PREFETCH{$k};
1594	}	2055	}
1595	}	2056	}
1596	undef $MAP_PREFETCHER;	2057	undef $MAP_PREFETCHER;
1597	};	2058	};
1598	$MAP_PREFETCHER->prio (6);	2059	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2062	}
1602		2063
1603	sub save {	2064	sub save {
1604	my ($self) = @_;	2065	my ($self) = @_;
1605		2066
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2068
1608	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1609		2070
1610	return unless $self->dirty;	2071	return unless $self->dirty;
1611		2072
…		…
1634	my ($self) = @_;	2095	my ($self) = @_;
1635		2096
1636	# save first because save cedes	2097	# save first because save cedes
1637	$self->save;	2098	$self->save;
1638		2099
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2101
1641	return if $self->players;	2102	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1643	return if $self->{deny_save};	2104	return if $self->{deny_save};
1644		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2110	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2111	}
1648		2112
1649	sub reset_at {	2113	sub reset_at {
1650	my ($self) = @_;	2114	my ($self) = @_;
1651		2115
1652	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1655		2118
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2121
…		…
1669	my ($self) = @_;	2132	my ($self) = @_;
1670		2133
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2135
1673	return if $self->players;	2136	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2137
1676	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
1677		2139
1678	$self->in_memory (cf::MAP_SWAPPED);	2140	$self->in_memory (cf::MAP_SWAPPED);
1679		2141
1680	# need to save uniques path	2142	# need to save uniques path
1681	unless ($self->{deny_save}) {	2143	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2147	if $uniq;
1686	}	2148	}
1687		2149
1688	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1689		2151
		2152	$self->deactivate;
		2153	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2154	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2155
1694	$self->unlink_save;	2156	$self->unlink_save;
1695	$self->destroy;	2157	$self->destroy;
1696	}	2158	}
1697		2159
1698	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1699		2161
1700	sub nuke {	2162	sub nuke {
1701	my ($self) = @_;	2163	my ($self) = @_;
1702		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
1703	delete $cf::MAP{$self->path};	2168	delete $cf::MAP{$self->path};
1704		2169
1705	$self->unlink_save;	2170	$self->unlink_save;
1706		2171
1707	bless $self, "cf::map";	2172	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2173	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2177
1713	$cf::MAP{$self->path} = $self;	2178	$cf::MAP{$self->path} = $self;
		2179	}
1714		2180
1715	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
		2182	}
		2183
		2184	=item $maps = cf::map::tmp_maps
		2185
		2186	Returns an arrayref with all map paths of currently instantiated and saved
		2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
		2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
		2201
		2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
1716	}	2218	}
1717		2219
1718	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1719		2221
1720	Returns an arrayref of paths of all shared maps that have	2222	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2223	instantiated unique items. May block.
1722		2224
1723	=cut	2225	=cut
1724		2226
1725	sub unique_maps() {	2227	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1727	or return;	2229	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2230	utf8::decode $_;
1733	next if /\.pst$/;	2231	/\.map$/
1734	next unless /^$PATH_SEP/o;	2232	? normalise $_
1735		2233	: ()
1736	push @paths, cf::map::normalise $_;	2234	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2235	]
1738
1739	\@paths
1740	}	2236	}
1741		2237
1742	package cf;	2238	package cf;
1743		2239
1744	=back	2240	=back
…		…
1762	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1763	}	2259	}
1764		2260
1765	sub inv_recursive {	2261	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
1767	}	2294	}
1768		2295
1769	package cf;	2296	package cf;
1770		2297
1771	=back	2298	=back
…		…
1790		2317
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2319
1793	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1795	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1798	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1799	}	2345	}
1800		2346
1801	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1802		2348
1803	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1850	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1851		2397
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2399
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1856		2402
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2404	}
1859		2405
1860	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1862		2410
1863	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1864		2412
1865	unless ($map) {	2413	unless ($map) {
1866	# restore original map position	2414	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1883		2431
1884	$map->load;	2432	$map->load;
1885	$map->load_diag;	2433	$map->load_neighbours;
1886		2434
1887	return unless $self->contr->active;	2435	return unless $self->contr->active;
1888	$self->activate_recursive;	2436	$self->activate_recursive;
1889		2437
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1892	}	2440	}
1893		2441
1894	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2443
1898	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1902	};	2448	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2449
1908	# try to abort aborted map switching on player login :)
1909	# should happen only on crashes
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925
1926	=item $player_object->goto ($path, $x, $y)
1927
1928	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1929		2453
1930	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2459
1933	$self->enter_link;	2460	$self->enter_link;
1934		2461
1935	(async {	2462	(async {
		2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
1936	my $map = eval {	2482	my $map = eval {
1937	my $map = cf::map::find $path;	2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
		2487	$map = $check->($map) if $check && $map;
		2488	} else {
		2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
		2491
1939	$map	2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2498	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1944	})->prio (1);	2506	})->prio (1);
1945	}	2507	}
1946		2508
1947	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1948		2510
…		…
1987		2549
1988	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1989		2551
1990	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2554	my $meta = "$RANDOMDIR/$md5.meta";
1993		2555
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2558	undef $fh;
1997	aio_rename "$meta~", $meta;	2559	aio_rename "$meta~", $meta;
…		…
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;	2579	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;	2580	my $sp = $exit->stats->sp;
2019		2581
2020	$self->enter_link;	2582	$self->enter_link;
		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
2021		2587
2022	(async {	2588	(async {
2023	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
2024	unless (eval {	2590	unless (eval {
2025	$self->goto ($slaying, $hp, $sp);	2591	$self->goto ($slaying, $hp, $sp);
…		…
2053		2619
2054	utf8::encode $text;	2620	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2622	}
2057		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "identify",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "examine",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	);
		2647
		2648	sub cf::client::send_msg {
		2649	my ($self, $channel, $msg, $color, @extra) = @_;
		2650
		2651	$msg = $self->pl->expand_cfpod ($msg);
		2652
		2653	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2654
		2655	# check predefined channels, for the benefit of C
		2656	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2657
		2658	if (ref $channel) {
		2659	# send meta info to client, if not yet sent
		2660	unless (exists $self->{channel}{$channel->{id}}) {
		2661	$self->{channel}{$channel->{id}} = $channel;
		2662	$self->ext_msg (channel_info => $channel)
		2663	if $self->can_msg;
		2664	}
		2665
		2666	$channel = $channel->{id};
		2667	}
		2668
		2669	return unless @extra || length $msg;
		2670
		2671	if ($self->can_msg) {
		2672	# default colour, mask it out
		2673	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2674	if $color & cf::NDI_DEF;
		2675
		2676	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2677	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2678	} else {
		2679	if ($color >= 0) {
		2680	# replace some tags by gcfclient-compatible ones
		2681	for ($msg) {
		2682	1 while
		2683	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2684	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2685	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2686	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2687	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2688	}
		2689
		2690	$color &= cf::NDI_COLOR_MASK;
		2691
		2692	utf8::encode $msg;
		2693
		2694	if (0 && $msg =~ /\[/) {
		2695	# COMMAND/INFO
		2696	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2697	} else {
		2698	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2699	$self->send_packet ("drawinfo $color $msg")
		2700	}
		2701	}
		2702	}
		2703	}
		2704
2058	=item $client->ext_event ($type, %msg)	2705	=item $client->ext_msg ($type, @msg)
2059		2706
2060	Sends an exti event to the client.	2707	Sends an ext event to the client.
2061		2708
2062	=cut	2709	=cut
2063		2710
2064	sub cf::client::ext_event($$%) {	2711	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2712	my ($self, $type, @msg) = @_;
2066		2713
		2714	if ($self->extcmd == 2) {
		2715	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2716	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2717	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2718	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2719	}
		2720	}
		2721
		2722	=item $client->ext_reply ($msgid, @msg)
		2723
		2724	Sends an ext reply to the client.
		2725
		2726	=cut
		2727
		2728	sub cf::client::ext_reply($$@) {
		2729	my ($self, $id, @msg) = @_;
		2730
		2731	if ($self->extcmd == 2) {
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2733	} elsif ($self->extcmd == 1) {
		2734	#TODO: version 1, remove
		2735	unshift @msg, msgtype => "reply", msgid => $id;
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2737	}
2069	}	2738	}
2070		2739
2071	=item $success = $client->query ($flags, "text", \&cb)	2740	=item $success = $client->query ($flags, "text", \&cb)
2072		2741
2073	Queues a query to the client, calling the given callback with	2742	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2743	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2744	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2745
2077	Queries can fail, so check the return code. Or don't, as queries will become	2746	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2747	become reliable at some point in the future.
2079		2748
2080	=cut	2749	=cut
2081		2750
2082	sub cf::client::query {	2751	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2752	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2760	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2761	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2762
2094	$self->send_packet ($self->{query_queue}[0][0])	2763	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2764	if @{ $self->{query_queue} } == 1;
		2765
		2766	1
2096	}	2767	}
2097		2768
2098	cf::client->attach (	2769	cf::client->attach (
		2770	on_connect => sub {
		2771	my ($ns) = @_;
		2772
		2773	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2774	},
2099	on_reply => sub {	2775	on_reply => sub {
2100	my ($ns, $msg) = @_;	2776	my ($ns, $msg) = @_;
2101		2777
2102	# this weird shuffling is so that direct followup queries	2778	# this weird shuffling is so that direct followup queries
2103	# get handled first	2779	# get handled first
…		…
2115	} else {	2791	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2792	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2793	}
2118	}	2794	}
2119	},	2795	},
		2796	on_exticmd => sub {
		2797	my ($ns, $buf) = @_;
		2798
		2799	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2800
		2801	if (ref $msg) {
		2802	my ($type, $reply, @payload) =
		2803	"ARRAY" eq ref $msg
		2804	? @$msg
		2805	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2806
		2807	my @reply;
		2808
		2809	if (my $cb = $EXTICMD{$type}) {
		2810	@reply = $cb->($ns, @payload);
		2811	}
		2812
		2813	$ns->ext_reply ($reply, @reply)
		2814	if $reply;
		2815
		2816	} else {
		2817	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2818	}
		2819
		2820	cf::override;
		2821	},
2120	);	2822	);
2121		2823
2122	=item $client->async (\&cb)	2824	=item $client->async (\&cb)
2123		2825
2124	Create a new coroutine, running the specified callback. The coroutine will	2826	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	2867	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	2868	our $safe_hole = new Safe::Hole;
2167		2869
2168	$SIG{FPE} = 'IGNORE';	2870	$SIG{FPE} = 'IGNORE';
2169		2871
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2872	$safe->permit_only (Opcode::opset qw(
		2873	:base_core :base_mem :base_orig :base_math
		2874	grepstart grepwhile mapstart mapwhile
		2875	sort time
		2876	));
2171		2877
2172	# here we export the classes and methods available to script code	2878	# here we export the classes and methods available to script code
2173		2879
2174	=pod	2880	=pod
2175		2881
2176	The following functions and methods are available within a safe environment:	2882	The following functions and methods are available within a safe environment:
2177		2883
2178	cf::object contr pay_amount pay_player map	2884	cf::object
		2885	contr pay_amount pay_player map x y force_find force_add
		2886	insert remove name archname title slaying race decrease_ob_nr
		2887
2179	cf::object::player player	2888	cf::object::player
2180	cf::player peaceful	2889	player
2181	cf::map trigger	2890
		2891	cf::player
		2892	peaceful
		2893
		2894	cf::map
		2895	trigger
2182		2896
2183	=cut	2897	=cut
2184		2898
2185	for (	2899	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	2900	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2901	insert remove inv name archname title slaying race
		2902	decrease_ob_nr)],
2187	["cf::object::player" => qw(player)],	2903	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	2904	["cf::player" => qw(peaceful)],
2189	["cf::map" => qw(trigger)],	2905	["cf::map" => qw(trigger)],
2190	) {	2906	) {
2191	no strict 'refs';	2907	no strict 'refs';
…		…
2262	=back	2978	=back
2263		2979
2264	=cut	2980	=cut
2265		2981
2266	#############################################################################	2982	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	eval {
2420	local $SIG{__DIE__};
2421	local $SIG{__WARN__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	_exit 0;
2429	}
2430	}
2431
2432
2433
2434	#############################################################################
2435	# the server's init and main functions	2983	# the server's init and main functions
2436		2984
2437	sub load_facedata($) {	2985	sub load_facedata($) {
2438	my ($path) = @_;	2986	my ($path) = @_;
		2987
		2988	# HACK to clear player env face cache, we need some signal framework
		2989	# for this (global event?)
		2990	%ext::player_env::MUSIC_FACE_CACHE = ();
		2991
		2992	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2439		2993
2440	warn "loading facedata from $path\n";	2994	warn "loading facedata from $path\n";
2441		2995
2442	my $facedata;	2996	my $facedata;
2443	0 < aio_load $path, $facedata	2997	0 < aio_load $path, $facedata
…		…
2446	$facedata = Coro::Storable::thaw $facedata;	3000	$facedata = Coro::Storable::thaw $facedata;
2447		3001
2448	$facedata->{version} == 2	3002	$facedata->{version} == 2
2449	or cf::cleanup "$path: version mismatch, cannot proceed.";	3003	or cf::cleanup "$path: version mismatch, cannot proceed.";
2450		3004
		3005	# patch in the exptable
		3006	$facedata->{resource}{"res/exp_table"} = {
		3007	type => FT_RSRC,
		3008	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3009	};
		3010	cf::cede_to_tick;
		3011
2451	{	3012	{
2452	my $faces = $facedata->{faceinfo};	3013	my $faces = $facedata->{faceinfo};
2453		3014
2454	while (my ($face, $info) = each %$faces) {	3015	while (my ($face, $info) = each %$faces) {
2455	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3016	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2456	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3017	cf::face::set_visibility $idx, $info->{visibility};
		3018	cf::face::set_magicmap $idx, $info->{magicmap};
2457	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3019	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2458	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3020	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2459	Coro::cede;	3021
		3022	cf::cede_to_tick;
2460	}	3023	}
2461		3024
2462	while (my ($face, $info) = each %$faces) {	3025	while (my ($face, $info) = each %$faces) {
2463	next unless $info->{smooth};	3026	next unless $info->{smooth};
2464	my $idx = cf::face::find $face	3027	my $idx = cf::face::find $face
2465	or next;	3028	or next;
2466	if (my $smooth = cf::face::find $info->{smooth}) {	3029	if (my $smooth = cf::face::find $info->{smooth}) {
		3030	cf::face::set_smooth $idx, $smooth;
2467	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3031	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2468	} else {	3032	} else {
2469	warn "smooth face '$info->{smooth}' not found for face '$face'";	3033	warn "smooth face '$info->{smooth}' not found for face '$face'";
2470	}	3034	}
2471	Coro::cede;	3035
		3036	cf::cede_to_tick;
2472	}	3037	}
2473	}	3038	}
2474		3039
2475	{	3040	{
2476	my $anims = $facedata->{animinfo};	3041	my $anims = $facedata->{animinfo};
2477		3042
2478	while (my ($anim, $info) = each %$anims) {	3043	while (my ($anim, $info) = each %$anims) {
2479	cf::anim::set $anim, $info->{frames}, $info->{facings};	3044	cf::anim::set $anim, $info->{frames}, $info->{facings};
2480	Coro::cede;	3045	cf::cede_to_tick;
2481	}	3046	}
2482		3047
2483	cf::anim::invalidate_all; # d'oh	3048	cf::anim::invalidate_all; # d'oh
2484	}	3049	}
2485		3050
		3051	{
		3052	# TODO: for gcfclient pleasure, we should give resources
		3053	# that gcfclient doesn't grok a >10000 face index.
		3054	my $res = $facedata->{resource};
		3055
		3056	my $soundconf = delete $res->{"res/sound.conf"};
		3057
		3058	while (my ($name, $info) = each %$res) {
		3059	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3060	my $data;
		3061
		3062	if ($info->{type} & 1) {
		3063	# prepend meta info
		3064
		3065	my $meta = $enc->encode ({
		3066	name => $name,
		3067	%{ $info->{meta} || {} },
		3068	});
		3069
		3070	$data = pack "(w/a*)*", $meta, $info->{data};
		3071	} else {
		3072	$data = $info->{data};
		3073	}
		3074
		3075	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3076	cf::face::set_type $idx, $info->{type};
		3077
		3078	cf::cede_to_tick;
		3079	}
		3080
		3081	if ($soundconf) {
		3082	$soundconf = $enc->decode (delete $soundconf->{data});
		3083
		3084	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3085	my $sound = $soundconf->{compat}[$_]
		3086	or next;
		3087
		3088	my $face = cf::face::find "sound/$sound->[1]";
		3089	cf::sound::set $sound->[0] => $face;
		3090	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3091	}
		3092
		3093	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3094	my $face = cf::face::find "sound/$v";
		3095	cf::sound::set $k => $face;
		3096	}
		3097	}
		3098	}
		3099
2486	1	3100	1
2487	}	3101	}
2488		3102
		3103	register_exticmd fx_want => sub {
		3104	my ($ns, $want) = @_;
		3105
		3106	while (my ($k, $v) = each %$want) {
		3107	$ns->fx_want ($k, $v);
		3108	}
		3109	};
		3110
		3111	sub reload_regions {
		3112	# HACK to clear player env face cache, we need some signal framework
		3113	# for this (global event?)
		3114	%ext::player_env::MUSIC_FACE_CACHE = ();
		3115
		3116	load_resource_file "$MAPDIR/regions"
		3117	or die "unable to load regions file\n";
		3118
		3119	for (cf::region::list) {
		3120	$_->{match} = qr/$_->{match}/
		3121	if exists $_->{match};
		3122	}
		3123	}
		3124
2489	sub reload_facedata {	3125	sub reload_facedata {
2490	load_facedata sprintf "%s/facedata", cf::datadir	3126	load_facedata "$DATADIR/facedata"
2491	or die "unable to load facedata\n";	3127	or die "unable to load facedata\n";
2492	}	3128	}
2493		3129
2494	sub reload_regions {
2495	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2496	or die "unable to load regions file\n";
2497	}
2498
2499	sub reload_archetypes {	3130	sub reload_archetypes {
2500	load_resource_file sprintf "%s/archetypes", cf::datadir	3131	load_resource_file "$DATADIR/archetypes"
2501	or die "unable to load archetypes\n";	3132	or die "unable to load archetypes\n";
		3133	#d# NEED to laod twice to resolve forward references
		3134	# this really needs to be done in an extra post-pass
		3135	# (which needs to be synchronous, so solve it differently)
		3136	load_resource_file "$DATADIR/archetypes"
		3137	or die "unable to load archetypes\n";
2502	}	3138	}
2503		3139
2504	sub reload_treasures {	3140	sub reload_treasures {
2505	load_resource_file sprintf "%s/treasures", cf::datadir	3141	load_resource_file "$DATADIR/treasures"
2506	or die "unable to load treasurelists\n";	3142	or die "unable to load treasurelists\n";
2507	}	3143	}
2508		3144
2509	sub reload_resources {	3145	sub reload_resources {
2510	warn "reloading resource files...\n";	3146	warn "reloading resource files...\n";
2511		3147
2512	reload_regions;	3148	reload_regions;
2513	reload_facedata;	3149	reload_facedata;
		3150	#reload_archetypes;#d#
2514	reload_archetypes;	3151	reload_archetypes;
2515	reload_treasures;	3152	reload_treasures;
2516		3153
2517	warn "finished reloading resource files\n";	3154	warn "finished reloading resource files\n";
2518	}	3155	}
2519		3156
2520	sub init {	3157	sub init {
2521	reload_resources;	3158	reload_resources;
2522	}	3159	}
2523		3160
2524	sub cfg_load {	3161	sub reload_config {
2525	open my $fh, "<:utf8", cf::confdir . "/config"	3162	open my $fh, "<:utf8", "$CONFDIR/config"
2526	or return;	3163	or return;
2527		3164
2528	local $/;	3165	local $/;
2529	*CFG = YAML::Syck::Load <$fh>;	3166	*CFG = YAML::Syck::Load <$fh>;
2530		3167
…		…
2549	(async {	3186	(async {
2550	Event::one_event;	3187	Event::one_event;
2551	})->prio (Coro::PRIO_MAX);	3188	})->prio (Coro::PRIO_MAX);
2552	};	3189	};
2553		3190
2554	cfg_load;	3191	reload_config;
2555	db_init;	3192	db_init;
2556	load_extensions;	3193	load_extensions;
2557		3194
2558	$TICK_WATCHER->start;	3195	$TICK_WATCHER->start;
2559	Event::loop;	3196	Event::loop;
…		…
2575	},	3212	},
2576	);	3213	);
2577	}	3214	}
2578	}	3215	}
2579		3216
		3217	sub write_runtime {
		3218	my $runtime = "$LOCALDIR/runtime";
		3219
		3220	# first touch the runtime file to show we are still running:
		3221	# the fsync below can take a very very long time.
		3222
		3223	IO::AIO::aio_utime $runtime, undef, undef;
		3224
		3225	my $guard = cf::lock_acquire "write_runtime";
		3226
		3227	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3228	or return;
		3229
		3230	my $value = $cf::RUNTIME + 90 + 10;
		3231	# 10 is the runtime save interval, for a monotonic clock
		3232	# 60 allows for the watchdog to kill the server.
		3233
		3234	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3235	and return;
		3236
		3237	# always fsync - this file is important
		3238	aio_fsync $fh
		3239	and return;
		3240
		3241	# touch it again to show we are up-to-date
		3242	aio_utime $fh, undef, undef;
		3243
		3244	close $fh
		3245	or return;
		3246
		3247	aio_rename "$runtime~", $runtime
		3248	and return;
		3249
		3250	warn "runtime file written.\n";
		3251
		3252	1
		3253	}
		3254
2580	sub emergency_save() {	3255	sub emergency_save() {
2581	my $freeze_guard = cf::freeze_mainloop;	3256	my $freeze_guard = cf::freeze_mainloop;
2582		3257
2583	warn "enter emergency perl save\n";	3258	warn "enter emergency perl save\n";
2584		3259
…		…
2659	%EXT_CORO = ();	3334	%EXT_CORO = ();
2660		3335
2661	warn "removing commands";	3336	warn "removing commands";
2662	%COMMAND = ();	3337	%COMMAND = ();
2663		3338
2664	warn "removing ext commands";	3339	warn "removing ext/exti commands";
2665	%EXTCMD = ();	3340	%EXTCMD = ();
		3341	%EXTICMD = ();
2666		3342
2667	warn "unloading/nuking all extensions";	3343	warn "unloading/nuking all extensions";
2668	for my $pkg (@EXTS) {	3344	for my $pkg (@EXTS) {
2669	warn "... unloading $pkg";	3345	warn "... unloading $pkg";
2670		3346
…		…
2700	Symbol::delete_package "safe::$_"	3376	Symbol::delete_package "safe::$_"
2701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2702		3378
2703	warn "unloading cf.pm \"a bit\"";	3379	warn "unloading cf.pm \"a bit\"";
2704	delete $INC{"cf.pm"};	3380	delete $INC{"cf.pm"};
		3381	delete $INC{"cf/pod.pm"};
2705		3382
2706	# don't, removes xs symbols, too,	3383	# don't, removes xs symbols, too,
2707	# and global variables created in xs	3384	# and global variables created in xs
2708	#Symbol::delete_package __PACKAGE__;	3385	#Symbol::delete_package __PACKAGE__;
2709		3386
…		…
2712	warn "reloading cf.pm";	3389	warn "reloading cf.pm";
2713	require cf;	3390	require cf;
2714	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2715		3392
2716	warn "loading config and database again";	3393	warn "loading config and database again";
2717	cf::cfg_load;	3394	cf::reload_config;
2718		3395
2719	warn "loading extensions";	3396	warn "loading extensions";
2720	cf::load_extensions;	3397	cf::load_extensions;
2721		3398
2722	warn "reattaching attachments to objects/players";	3399	warn "reattaching attachments to objects/players";
…		…
2800	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3477	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2801	unless ++$bug_warning > 10;	3478	unless ++$bug_warning > 10;
2802	return;	3479	return;
2803	}	3480	}
2804		3481
2805	$NOW = Event::time;	3482	$NOW = $tick_start = Event::time;
2806		3483
2807	cf::server_tick; # one server iteration	3484	cf::server_tick; # one server iteration
2808		3485
2809	$RUNTIME += $TICK;	3486	$RUNTIME += $TICK;
2810	$NEXT_TICK += $TICK;	3487	$NEXT_TICK += $TICK;
…		…
2815	write_runtime	3492	write_runtime
2816	or warn "ERROR: unable to write runtime file: $!";	3493	or warn "ERROR: unable to write runtime file: $!";
2817	};	3494	};
2818	}	3495	}
2819		3496
2820	# my $AFTER = Event::time;	3497	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2821	# warn $AFTER - $NOW;#d#	3498	$sig->send;
		3499	}
		3500	while (my $sig = shift @WAIT_FOR_TICK) {
		3501	$sig->send;
		3502	}
		3503
		3504	$NOW = Event::time;
2822		3505
2823	# if we are delayed by four ticks or more, skip them all	3506	# if we are delayed by four ticks or more, skip them all
2824	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3507	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2825		3508
2826	$TICK_WATCHER->at ($NEXT_TICK);	3509	$TICK_WATCHER->at ($NEXT_TICK);
2827	$TICK_WATCHER->start;	3510	$TICK_WATCHER->start;
2828		3511
2829	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3512	$LOAD = ($NOW - $tick_start) / $TICK;
2830	$sig->send;	3513	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2831	}
2832	while (my $sig = shift @WAIT_FOR_TICK) {
2833	$sig->send;
2834	}
2835		3514
2836	_post_tick;	3515	_post_tick;
2837	},	3516	},
2838	);	3517	);
2839		3518
2840	{	3519	{
		3520	BDB::min_parallel 8;
2841	BDB::max_poll_time $TICK * 0.1;	3521	BDB::max_poll_time $TICK * 0.1;
2842	$BDB_POLL_WATCHER = Event->io (	3522	$BDB_POLL_WATCHER = Event->io (
2843	reentrant => 0,	3523	reentrant => 0,
2844	fd => BDB::poll_fileno,	3524	fd => BDB::poll_fileno,
2845	poll => 'r',	3525	poll => 'r',
2846	prio => 0,	3526	prio => 0,
2847	data => WF_AUTOCANCEL,	3527	data => WF_AUTOCANCEL,
2848	cb => \&BDB::poll_cb,	3528	cb => \&BDB::poll_cb,
2849	);	3529	);
2850	BDB::min_parallel 8;
2851		3530
2852	BDB::set_sync_prepare {	3531	BDB::set_sync_prepare {
2853	my $status;	3532	my $status;
2854	my $current = $Coro::current;	3533	my $current = $Coro::current;
2855	(	3534	(
…		…
2869		3548
2870	cf::sync_job {	3549	cf::sync_job {
2871	eval {	3550	eval {
2872	BDB::db_env_open	3551	BDB::db_env_open
2873	$DB_ENV,	3552	$DB_ENV,
2874	$BDB_ENV_DIR,	3553	$BDBDIR,
2875	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3554	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2876	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3555	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2877	0666;	3556	0666;
2878		3557
2879	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3558	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2880		3559
2881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3560	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3561	| BDB::LOG_AUTOREMOVE, 1);
2882	$DB_ENV->set_lk_detect;	3562	$DB_ENV->set_lk_detect;
2883	};	3563	};
2884		3564
2885	cf::cleanup "db_env_open(db): $@" if $@;	3565	cf::cleanup "db_env_open(db): $@" if $@;
2886	};	3566	};
2887	}	3567	}
		3568
		3569	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3570	after => 11,
		3571	interval => 60,
		3572	hard => 1,
		3573	prio => 0,
		3574	data => WF_AUTOCANCEL,
		3575	cb => sub {
		3576	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3577	},
		3578	);
		3579	$BDB_TRICKLE_WATCHER = Event->timer (
		3580	after => 5,
		3581	interval => 10,
		3582	hard => 1,
		3583	prio => 0,
		3584	data => WF_AUTOCANCEL,
		3585	cb => sub {
		3586	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3587	},
		3588	);
2888	}	3589	}
2889		3590
2890	{	3591	{
2891	IO::AIO::min_parallel 8;	3592	IO::AIO::min_parallel 8;
2892		3593
…		…
2900	prio => 6,	3601	prio => 6,
2901	cb => \&IO::AIO::poll_cb,	3602	cb => \&IO::AIO::poll_cb,
2902	);	3603	);
2903	}	3604	}
2904		3605
		3606	my $_log_backtrace;
		3607
		3608	sub _log_backtrace {
		3609	my ($msg, @addr) = @_;
		3610
		3611	$msg =~ s/\n//;
		3612
		3613	# limit the # of concurrent backtraces
		3614	if ($_log_backtrace < 2) {
		3615	++$_log_backtrace;
		3616	async {
		3617	my @bt = fork_call {
		3618	@addr = map { sprintf "%x", $_ } @addr;
		3619	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3620	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3621	or die "addr2line: $!";
		3622
		3623	my @funcs;
		3624	my @res = <$fh>;
		3625	chomp for @res;
		3626	while (@res) {
		3627	my ($func, $line) = splice @res, 0, 2, ();
		3628	push @funcs, "[$func] $line";
		3629	}
		3630
		3631	@funcs
		3632	};
		3633
		3634	LOG llevInfo, "[ABT] $msg\n";
		3635	LOG llevInfo, "[ABT] $_\n" for @bt;
		3636	--$_log_backtrace;
		3637	};
		3638	} else {
		3639	LOG llevInfo, "[ABT] $msg\n";
		3640	LOG llevInfo, "[ABT] [suppressed]\n";
		3641	}
		3642	}
		3643
2905	# load additional modules	3644	# load additional modules
2906	use cf::pod;	3645	use cf::pod;
2907		3646
2908	END { cf::emergency_save }	3647	END { cf::emergency_save }
2909		3648

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