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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.248 by root, Tue Apr 17 18:40:32 2007 UTC vs.
Revision 1.314 by root, Mon Jul 23 16:53:15 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.61 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
21	use Coro::Storable;	23	use Coro::Storable;
22		24
		25	use JSON::XS 1.4 ();
23	use BDB ();	26	use BDB ();
24	use Data::Dumper;	27	use Data::Dumper;
25	use Digest::MD5;	28	use Digest::MD5;
26	use Fcntl;	29	use Fcntl;
27	use YAML::Syck ();	30	use YAML::Syck ();
28	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
29	use Time::HiRes;	32	use Time::HiRes;
30	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
31		35
32	# configure various modules to our taste	36	# configure various modules to our taste
33	#	37	#
34	$Storable::canonical = 1; # reduce rsync transfers	38	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
47	our %COMMAND = ();	51	our %COMMAND = ();
48	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
49		53
50	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
54		59
55	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
56	our @EVENT;	61	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	62
		63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
58		74
59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;	76	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
…		…
73	our $RUNTIME;	89	our $RUNTIME;
74		90
75	our %PLAYER; # all users	91	our %PLAYER; # all users
76	our %MAP; # all maps	92	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		94
81	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
84	binmode STDOUT;	102	binmode STDOUT;
85	binmode STDERR;	103	binmode STDERR;
86		104
87	# read virtual server time, if available	105	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
89	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
90	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
91	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
92	}	110	}
93		111
94	mkdir cf::localdir;	112	mkdir $_
95	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
96	mkdir cf::localdir . "/" . cf::tmpdir;
97	mkdir cf::localdir . "/" . cf::uniquedir;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		114
101	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
102		116
103	sub cf::map::normalise;	117	sub cf::map::normalise;
104		118
…		…
115	=item $cf::RUNTIME	129	=item $cf::RUNTIME
116		130
117	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
118	every server tick.	132	every server tick.
119		133
120	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
121		137
122	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
123	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
124		142
125	=item $cf::NOW	143	=item $cf::NOW
126		144
127	The time of the last (current) server tick.	145	The time of the last (current) server tick.
128		146
129	=item $cf::TICK	147	=item $cf::TICK
130		148
131	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
132		160
133	=item %cf::CFG	161	=item %cf::CFG
134		162
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
136	from wherever your confdir points to.	164	from wherever your confdir points to.
…		…
139		167
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	169	returns directly I<after> the tick processing (and consequently, can only wake one process
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
		177
144	=back	178	=back
145		179
146	=cut	180	=cut
147		181
148	BEGIN {	182	BEGIN {
149	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	184	my $msg = join "", @_;
151	utf8::encode $msg;
152		185
153	$msg .= "\n"	186	$msg .= "\n"
154	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
155		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
156	LOG llevError, $msg;	192	LOG llevError, $msg;
157	};	193	};
158	}	194	}
159		195
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
166		203
167	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
168	# within the Safe compartment.	205	# within the Safe compartment.
169	for my $pkg (qw(	206	for my $pkg (qw(
170	cf::global cf::attachable	207	cf::global cf::attachable
…		…
178	}	215	}
179		216
180	$Event::DIED = sub {	217	$Event::DIED = sub {
181	warn "error in event callback: @_";	218	warn "error in event callback: @_";
182	};	219	};
		220
		221	#############################################################################
183		222
184	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
185		224
186	=over 4	225	=over 4
187		226
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	246	$d
208	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
209	}	248	}
210		249
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
214		251
215	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
216		253
217	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
218		255
219	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
		257
		258	=cut
		259
		260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		261
		262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
220		264
221	=item cf::lock_wait $string	265	=item cf::lock_wait $string
222		266
223	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
224		268
…		…
230	returned.	274	returned.
231		275
232	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
234		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
235	=cut	283	=cut
236		284
237	our %LOCK;	285	our %LOCK;
238		286
239	sub lock_wait($) {	287	sub lock_wait($) {
…		…
256		304
257	Coro::guard {	305	Coro::guard {
258	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
260	}	308	}
		309	}
		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
261	}	315	}
262		316
263	sub freeze_mainloop {	317	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
265		319
…		…
268	};	322	};
269	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
270	$guard	324	$guard
271	}	325	}
272		326
		327	=item cf::get_slot $time[, $priority]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	Useful for short background jobs.
		334
		335	=cut
		336
		337	our @SLOT_QUEUE;
		338	our $SLOT_QUEUE;
		339
		340	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		341	$SLOT_QUEUE = Coro::async {
		342	my $signal = new Coro::Signal;
		343
		344	while () {
		345	next_job:
		346	my $avail = cf::till_tick;
		347	if ($avail > 0.01) {
		348	for (0 .. $#SLOT_QUEUE) {
		349	if ($SLOT_QUEUE[$_][0] < $avail) {
		350	my $job = splice @SLOT_QUEUE, $_, 1, ();
		351	$job->[2]->send;
		352	Coro::cede;
		353	goto next_job;
		354	}
		355	}
		356	}
		357
		358	if (@SLOT_QUEUE) {
		359	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		360	push @cf::WAIT_FOR_TICK, $signal;
		361	$signal->wait;
		362	} else {
		363	Coro::schedule;
		364	}
		365	}
		366	};
		367
		368	sub get_slot($;$) {
		369	my ($time, $pri) = @_;
		370
		371	push @SLOT_QUEUE, [$time, $pri, my $sig = new Coro::Signal];
		372	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		373	$SLOT_QUEUE->ready;
		374	$sig->wait;
		375	}
		376
273	=item cf::async { BLOCK }	377	=item cf::async { BLOCK }
274		378
275	Currently the same as Coro::async_pool, meaning you cannot use	379	Currently the same as Coro::async_pool, meaning you cannot use
276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	380	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
277	thing you are allowed to do is call C<prio> on it.	381	thing you are allowed to do is call C<prio> on it.
…		…
280		384
281	BEGIN { *async = \&Coro::async_pool }	385	BEGIN { *async = \&Coro::async_pool }
282		386
283	=item cf::sync_job { BLOCK }	387	=item cf::sync_job { BLOCK }
284		388
285	The design of crossfire+ requires that the main coro ($Coro::main) is	389	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	390	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	391	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		392	acceptable.
288		393
289	If it must be done, put the blocking parts into C<sync_job>. This will run	394	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	395	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	396	server will be frozen during this time, so the block should either finish
292	fast or be very important.	397	fast or be very important.
…		…
295		400
296	sub sync_job(&) {	401	sub sync_job(&) {
297	my ($job) = @_;	402	my ($job) = @_;
298		403
299	if ($Coro::current == $Coro::main) {	404	if ($Coro::current == $Coro::main) {
		405	my $time = Event::time;
		406
300	# this is the main coro, too bad, we have to block	407	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	408	# till the operation succeeds, freezing the server :/
302		409
303	# TODO: use suspend/resume instead	410	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	411	# (but this is cancel-safe)
…		…
315		422
316	while ($busy) {	423	while ($busy) {
317	Coro::cede or Event::one_event;	424	Coro::cede or Event::one_event;
318	}	425	}
319		426
		427	$time = Event::time - $time;
		428
		429	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		430	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		431
		432	$tick_start += $time; # do not account sync jobs to server load
		433
320	wantarray ? @res : $res[0]	434	wantarray ? @res : $res[0]
321	} else {	435	} else {
322	# we are in another coroutine, how wonderful, everything just works	436	# we are in another coroutine, how wonderful, everything just works
323		437
324	$job->()	438	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	457	$EXT_CORO{$coro+0} = $coro;
344		458
345	$coro	459	$coro
346	}	460	}
347		461
348	sub write_runtime {	462	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		463
351	my $runtime = cf::localdir . "/runtime";	464	Executes the given code block with the given arguments in a seperate
		465	process, returning the results. Everything must be serialisable with
		466	Coro::Storable. May, of course, block. Note that the executed sub may
		467	never block itself or use any form of Event handling.
352		468
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	469	=cut
354	or return;
355		470
356	my $value = $cf::RUNTIME + 90 + 10;	471	sub _store_scalar {
357	# 10 is the runtime save interval, for a monotonic clock	472	open my $fh, ">", \my $buf
358	# 60 allows for the watchdog to kill the server.	473	or die "fork_call: cannot open fh-to-buf in child : $!";
359		474	Storable::store_fd $_[0], $fh;
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
361	and return;
362
363	# always fsync - this file is important
364	aio_fsync $fh
365	and return;
366
367	close $fh	475	close $fh;
368	or return;
369		476
370	aio_rename "$runtime~", $runtime	477	$buf
371	and return;	478	}
372		479
		480	sub fork_call(&@) {
		481	my ($cb, @args) = @_;
		482
		483	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		484	# or die "socketpair: $!";
		485	pipe my $fh1, my $fh2
		486	or die "pipe: $!";
		487
		488	if (my $pid = fork) {
		489	close $fh2;
		490
		491	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		492	warn "pst<$res>" unless $res =~ /^pst/;
		493	$res = Coro::Storable::thaw $res;
		494
		495	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		496
		497	Carp::confess $$res unless "ARRAY" eq ref $res;
		498
		499	return wantarray ? @$res : $res->[-1];
		500	} else {
		501	reset_signals;
		502	local $SIG{__WARN__};
		503	local $SIG{__DIE__};
		504	# just in case, this hack effectively disables event
		505	# in the child. cleaner and slower would be canceling all watchers,
		506	# but this works for the time being.
		507	local $Coro::idle;
		508	$Coro::current->prio (Coro::PRIO_MAX);
		509
		510	eval {
		511	close $fh1;
		512
		513	my @res = eval { $cb->(@args) };
		514
		515	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		516	close $fh2;
		517	};
		518
		519	warn $@ if $@;
		520	_exit 0;
373	1	521	}
		522	}
		523
		524	=item $value = cf::db_get $family => $key
		525
		526	Returns a single value from the environment database.
		527
		528	=item cf::db_put $family => $key => $value
		529
		530	Stores the given C<$value> in the family. It can currently store binary
		531	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		532
		533	=cut
		534
		535	our $DB;
		536
		537	sub db_init {
		538	unless ($DB) {
		539	$DB = BDB::db_create $DB_ENV;
		540
		541	cf::sync_job {
		542	eval {
		543	$DB->set_flags (BDB::CHKSUM);
		544
		545	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		546	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		547	cf::cleanup "db_open(db): $!" if $!;
		548	};
		549	cf::cleanup "db_open(db): $@" if $@;
		550	};
		551	}
		552	}
		553
		554	sub db_get($$) {
		555	my $key = "$_[0]/$_[1]";
		556
		557	cf::sync_job {
		558	BDB::db_get $DB, undef, $key, my $data;
		559
		560	$! ? ()
		561	: $data
		562	}
		563	}
		564
		565	sub db_put($$$) {
		566	BDB::dbreq_pri 4;
		567	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		568	}
		569
		570	=item cf::cache $id => [$paths...], $processversion => $process
		571
		572	Generic caching function that returns the value of the resource $id,
		573	caching and regenerating as required.
		574
		575	This function can block.
		576
		577	=cut
		578
		579	sub cache {
		580	my ($id, $src, $processversion, $process) = @_;
		581
		582	my $meta =
		583	join "\x00",
		584	$processversion,
		585	map {
		586	aio_stat $_
		587	and Carp::croak "$_: $!";
		588
		589	($_, (stat _)[7,9])
		590	} @$src;
		591
		592	my $dbmeta = db_get cache => "$id/meta";
		593	if ($dbmeta ne $meta) {
		594	# changed, we may need to process
		595
		596	my @data;
		597	my $md5;
		598
		599	for (0 .. $#$src) {
		600	0 <= aio_load $src->[$_], $data[$_]
		601	or Carp::croak "$src->[$_]: $!";
		602	}
		603
		604	# if processing is expensive, check
		605	# checksum first
		606	if (1) {
		607	$md5 =
		608	join "\x00",
		609	$processversion,
		610	map {
		611	Coro::cede;
		612	($src->[$_], Digest::MD5::md5_hex $data[$_])
		613	} 0.. $#$src;
		614
		615
		616	my $dbmd5 = db_get cache => "$id/md5";
		617	if ($dbmd5 eq $md5) {
		618	db_put cache => "$id/meta", $meta;
		619
		620	return db_get cache => "$id/data";
		621	}
		622	}
		623
		624	my $t1 = Time::HiRes::time;
		625	my $data = $process->(\@data);
		626	my $t2 = Time::HiRes::time;
		627
		628	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		629
		630	db_put cache => "$id/data", $data;
		631	db_put cache => "$id/md5" , $md5;
		632	db_put cache => "$id/meta", $meta;
		633
		634	return $data;
		635	}
		636
		637	db_get cache => "$id/data"
374	}	638	}
375		639
376	=item cf::datalog type => key => value, ...	640	=item cf::datalog type => key => value, ...
377		641
378	Log a datalog packet of the given type with the given key-value pairs.	642	Log a datalog packet of the given type with the given key-value pairs.
…		…
396	attach callbacks/event handlers (a collection of which is called an "attachment")	660	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	661	to it. All such attachable objects support the following methods.
398		662
399	In the following description, CLASS can be any of C<global>, C<object>	663	In the following description, CLASS can be any of C<global>, C<object>
400	C<player>, C<client> or C<map> (i.e. the attachable objects in	664	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	665	Crossfire TRT).
402		666
403	=over 4	667	=over 4
404		668
405	=item $attachable->attach ($attachment, key => $value...)	669	=item $attachable->attach ($attachment, key => $value...)
406		670
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	833	$registry = $CB_TYPE[$object_type] ||= [];
570		834
571	} elsif ($type eq "subtype") {	835	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	836	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	837	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	838	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		839
576	} elsif ($type eq "package") {	840	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	841	my $pkg = shift @arg;
578		842
579	while (my ($name, $id) = each %cb_id) {	843	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	872	_attach $registry, $klass, @attach;
609	}	873	}
610		874
611	$obj->{$name} = \%arg;	875	$obj->{$name} = \%arg;
612	} else {	876	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	877	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	878	}
615		879
616	$obj->{_attachment}{$name} = undef;	880	$obj->{_attachment}{$name} = undef;
617	}	881	}
618		882
…		…
620	if (ref $_[0]) {	884	if (ref $_[0]) {
621	_object_attach @_;	885	_object_attach @_;
622	} else {	886	} else {
623	_attach shift->_attach_registry, @_;	887	_attach shift->_attach_registry, @_;
624	}	888	}
		889	_recalc_want;
625	};	890	};
626		891
627	# all those should be optimised	892	# all those should be optimised
628	sub cf::attachable::detach {	893	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	894	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	897	delete $obj->{_attachment}{$name};
633	reattach ($obj);	898	reattach ($obj);
634	} else {	899	} else {
635	Carp::croak "cannot, currently, detach class attachments";	900	Carp::croak "cannot, currently, detach class attachments";
636	}	901	}
		902	_recalc_want;
637	};	903	};
638		904
639	sub cf::attachable::attached {	905	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	906	my ($obj, $name) = @_;
641		907
…		…
656	";	922	";
657	die if $@;	923	die if $@;
658	}	924	}
659		925
660	our $override;	926	our $override;
661	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	927	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
662		928
663	sub override {	929	sub override {
664	$override = 1;	930	$override = 1;
665	@invoke_results = ();	931	@INVOKE_RESULTS = (@_);
666	}	932	}
667		933
668	sub do_invoke {	934	sub do_invoke {
669	my $event = shift;	935	my $event = shift;
670	my $callbacks = shift;	936	my $callbacks = shift;
671		937
672	@invoke_results = ();	938	@INVOKE_RESULTS = ();
673		939
674	local $override;	940	local $override;
675		941
676	for (@$callbacks) {	942	for (@$callbacks) {
677	eval { &{$_->[1]} };	943	eval { &{$_->[1]} };
…		…
694		960
695	Generate an object-specific event with the given arguments.	961	Generate an object-specific event with the given arguments.
696		962
697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	963	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
698	removed in future versions), and there is no public API to access override	964	removed in future versions), and there is no public API to access override
699	results (if you must, access C<@cf::invoke_results> directly).	965	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		966
701	=back	967	=back
702		968
703	=cut	969	=cut
704		970
705	#############################################################################	971	#############################################################################
706	# object support	972	# object support
		973	#
		974
		975	sub _can_merge {
		976	my ($ob1, $ob2) = @_;
		977
		978	local $Storable::canonical = 1;
		979	my $fob1 = Storable::freeze $ob1;
		980	my $fob2 = Storable::freeze $ob2;
		981
		982	$fob1 eq $fob2
		983	}
707		984
708	sub reattach {	985	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	986	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	987	my ($obj) = @_;
711		988
…		…
814	or return;	1091	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	1092	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1093	}
817		1094
818	warn sprintf "loading %s (%d)\n",	1095	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1096	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1097	return ($data, $av);
821	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
822		1105
823	#############################################################################	1106	#############################################################################
824	# command handling &c	1107	# command handling &c
825		1108
826	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1123	}
841		1124
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1126
844	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
845		1132
846	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
847	called.	1134	called.
848		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
849	=cut	1147	=cut
850		1148
851	sub register_extcmd {	1149	sub register_extcmd {
852	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
853		1151
854	$EXTCMD{$name} = $cb;	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
855	}	1159	}
856		1160
857	cf::player->attach (	1161	cf::player->attach (
858	on_command => sub {	1162	on_command => sub {
859	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
868	cf::override;	1172	cf::override;
869	},	1173	},
870	on_extcmd => sub {	1174	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
872		1176
873	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1178
875	if (ref $msg) {	1179	if (ref $msg) {
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1180	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
877	if (my %reply = $cb->($pl, $msg)) {	1181	if (my %reply = $cb->($pl, $msg)) {
878	$pl->ext_reply ($msg->{msgid}, %reply);	1182	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
884		1188
885	cf::override;	1189	cf::override;
886	},	1190	},
887	);	1191	);
888		1192
889	sub load_extension {
890	my ($path) = @_;
891
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
893	my $base = $1;
894	my $pkg = $1;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}
917	die $@;
918	}
919
920	push @EXTS, $pkg;
921	}
922
923	sub load_extensions {	1193	sub load_extensions {
		1194	cf::sync_job {
		1195	my %todo;
		1196
924	for my $ext (<$LIBDIR/*.ext>) {	1197	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1198	next unless -r $path;
926	eval {	1199
927	load_extension $ext;	1200	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1201	my $base = $1;
		1202	my $pkg = $1;
		1203	$pkg =~ s/[^[:word:]]/_/g;
		1204	$pkg = "ext::$pkg";
		1205
		1206	open my $fh, "<:utf8", $path
		1207	or die "$path: $!";
		1208
		1209	my $source = do { local $/; <$fh> };
		1210
		1211	my %ext = (
		1212	path => $path,
		1213	base => $base,
		1214	pkg => $pkg,
		1215	);
		1216
		1217	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1218	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1219
		1220	$ext{source} =
		1221	"package $pkg; use strict; use utf8;\n"
		1222	. "#line 1 \"$path\"\n{\n"
		1223	. $source
		1224	. "\n};\n1";
		1225
		1226	$todo{$base} = \%ext;
		1227	}
		1228
		1229	my %done;
		1230	while (%todo) {
		1231	my $progress;
		1232
		1233	while (my ($k, $v) = each %todo) {
		1234	for (split /,\s*/, $v->{meta}{depends}) {
		1235	goto skip
		1236	unless exists $done{$_};
		1237	}
		1238
		1239	warn "... loading '$k' into '$v->{pkg}'\n";
		1240
		1241	unless (eval $v->{source}) {
		1242	my $msg = $@ ? "$v->{path}: $@\n"
		1243	: "$v->{base}: extension inactive.\n";
		1244
		1245	if (exists $v->{meta}{mandatory}) {
		1246	warn $msg;
		1247	warn "mandatory extension failed to load, exiting.\n";
		1248	exit 1;
		1249	}
		1250
		1251	warn $msg;
		1252	}
		1253
		1254	$done{$k} = delete $todo{$k};
		1255	push @EXTS, $v->{pkg};
		1256	$progress = 1;
928	1	1257	}
929	} or warn "$ext not loaded: $@";	1258
		1259	skip:
		1260	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1261	unless $progress;
		1262	}
930	}	1263	};
931	}	1264	}
932		1265
933	#############################################################################	1266	#############################################################################
934		1267
		1268	=back
		1269
935	=head2 CORE EXTENSIONS	1270	=head2 CORE EXTENSIONS
936		1271
937	Functions and methods that extend core crossfire objects.	1272	Functions and methods that extend core crossfire objects.
938		1273
939	=cut	1274	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1286	Returns the given player object, loading it if necessary (might block).
952		1287
953	=cut	1288	=cut
954		1289
955	sub playerdir($) {	1290	sub playerdir($) {
956	cf::localdir	1291	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1292	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1293	}
962		1294
963	sub path($) {	1295	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1296	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1084	while and may block, so not sync_job-capable, ever.	1416	while and may block, so not sync_job-capable, ever.
1085		1417
1086	=cut	1418	=cut
1087		1419
1088	sub list_logins {	1420	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1421	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1422	or return [];
1091		1423
1092	my @logins;	1424	my @logins;
1093		1425
1094	for my $login (@$dirs) {	1426	for my $login (@$dirs) {
…		…
1129	}	1461	}
1130		1462
1131	\@paths	1463	\@paths
1132	}	1464	}
1133		1465
		1466	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1467
		1468	Expand crossfire pod fragments into protocol xml.
		1469
		1470	=cut
		1471
		1472	sub expand_cfpod {
		1473	((my $self), (local $_)) = @_;
		1474
		1475	# escape & and <
		1476	s/&/&amp;/g;
		1477	s/(?<![BIUGH])</&lt;/g;
		1478
		1479	# this is buggy, it needs to properly take care of nested <'s
		1480
		1481	1 while
		1482	# replace B<>, I<>, U<> etc.
		1483	s/B<([^\>]*)>/<b>$1<\/b>/
		1484	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1485	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1486	# replace G<male|female> tags
		1487	|| s{G<([^>|]*)\|([^>]*)>}{
		1488	$self->gender ? $2 : $1
		1489	}ge
		1490	# replace H<hint text>
		1491	|| s{H<([^\>]*)>}
		1492	{
		1493	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1494	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1495	"")
		1496	[$self->{hintmode}]
		1497	}ge;
		1498
		1499	# create single paragraphs (very hackish)
		1500	s/(?<=\S)\n(?=\w)/ /g;
		1501
		1502	# compress some whitespace
		1503	s/\s+\n/\n/g; # ws line-ends
		1504	s/\n\n+/\n/g; # double lines
		1505	s/^\n+//; # beginning lines
		1506	s/\n+$//; # ending lines
		1507
		1508	$_
		1509	}
		1510
		1511	sub hintmode {
		1512	$_[0]{hintmode} = $_[1] if @_ > 1;
		1513	$_[0]{hintmode}
		1514	}
		1515
1134	=item $player->ext_reply ($msgid, %msg)	1516	=item $player->ext_reply ($msgid, %msg)
1135		1517
1136	Sends an ext reply to the player.	1518	Sends an ext reply to the player.
1137		1519
1138	=cut	1520	=cut
1139		1521
1140	sub ext_reply($$%) {	1522	sub ext_reply($$%) {
1141	my ($self, $id, %msg) = @_;	1523	my ($self, $id, %msg) = @_;
1142		1524
1143	$msg{msgid} = $id;	1525	$msg{msgid} = $id;
1144		1526	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1527	}
1147		1528
1148	=item $player->ext_event ($type, %msg)	1529	=item $player->ext_event ($type, %msg)
1149		1530
1150	Sends an ext event to the client.	1531	Sends an ext event to the client.
…		…
1165		1546
1166	package cf::region;	1547	package cf::region;
1167		1548
1168	=item cf::region::find_by_path $path	1549	=item cf::region::find_by_path $path
1169		1550
1170	Tries to decuce the probable region for a map knowing only its path.	1551	Tries to decuce the likely region for a map knowing only its path.
1171		1552
1172	=cut	1553	=cut
1173		1554
1174	sub find_by_path($) {	1555	sub find_by_path($) {
1175	my ($path) = @_;	1556	my ($path) = @_;
1176		1557
1177	my ($match, $specificity);	1558	my ($match, $specificity);
1178		1559
1179	for my $region (list) {	1560	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1561	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1562	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1563	if $region->specificity > $specificity;
1183	}	1564	}
1184	}	1565	}
1185		1566
…		…
1249	my ($self, $merge) = @_;	1630	my ($self, $merge) = @_;
1250		1631
1251	# we have to keep some variables in memory intact	1632	# we have to keep some variables in memory intact
1252	local $self->{path};	1633	local $self->{path};
1253	local $self->{load_path};	1634	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1635
1257	$self->SUPER::thawer_merge ($merge);	1636	$self->SUPER::thawer_merge ($merge);
1258	}	1637	}
1259		1638
1260	sub normalise {	1639	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1686	$self->init; # pass $1 etc.
1308	return $self;	1687	return $self;
1309	}	1688	}
1310	}	1689	}
1311		1690
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1691	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1692	()
1314	}	1693	}
1315		1694
1316	sub init {	1695	sub init {
1317	my ($self) = @_;	1696	my ($self) = @_;
…		…
1332		1711
1333	# the original (read-only) location	1712	# the original (read-only) location
1334	sub load_path {	1713	sub load_path {
1335	my ($self) = @_;	1714	my ($self) = @_;
1336		1715
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1716	"$MAPDIR/$self->{path}.map"
1338	}	1717	}
1339		1718
1340	# the temporary/swap location	1719	# the temporary/swap location
1341	sub save_path {	1720	sub save_path {
1342	my ($self) = @_;	1721	my ($self) = @_;
1343		1722
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1723	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1724	"$TMPDIR/$path.map"
1346	}	1725	}
1347		1726
1348	# the unique path, undef == no special unique path	1727	# the unique path, undef == no special unique path
1349	sub uniq_path {	1728	sub uniq_path {
1350	my ($self) = @_;	1729	my ($self) = @_;
1351		1730
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1731	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1732	"$UNIQUEDIR/$path"
1354	}	1733	}
1355		1734
1356	# and all this just because we cannot iterate over	1735	# and all this just because we cannot iterate over
1357	# all maps in C++...	1736	# all maps in C++...
1358	sub change_all_map_light {	1737	sub change_all_map_light {
1359	my ($change) = @_;	1738	my ($change) = @_;
1360		1739
1361	$_->change_map_light ($change)	1740	$_->change_map_light ($change)
1362	for grep $_->outdoor, values %cf::MAP;	1741	for grep $_->outdoor, values %cf::MAP;
		1742	}
		1743
		1744	sub decay_objects {
		1745	my ($self) = @_;
		1746
		1747	return if $self->{deny_reset};
		1748
		1749	$self->do_decay_objects;
1363	}	1750	}
1364		1751
1365	sub unlink_save {	1752	sub unlink_save {
1366	my ($self) = @_;	1753	my ($self) = @_;
1367		1754
…		…
1425	$self->load_header_orig	1812	$self->load_header_orig
1426	or return;	1813	or return;
1427	$self->prepare_orig;	1814	$self->prepare_orig;
1428	}	1815	}
1429		1816
		1817	$self->{deny_reset} = 1
		1818	if $self->no_reset;
		1819
1430	$self->default_region (cf::region::find_by_path $self->{path})	1820	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1821	unless $self->default_region;
1432		1822
1433	1	1823	1
1434	}	1824	}
…		…
1449	$map->{last_save} = $cf::RUNTIME;	1839	$map->{last_save} = $cf::RUNTIME;
1450		1840
1451	$map->load_header	1841	$map->load_header
1452	or return;	1842	or return;
1453		1843
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1844	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	1845	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	1846	#$cf::WAIT_FOR_TICK->wait;
1457	$map->reset;	1847	$map->reset;
1458	undef $guard;	1848	undef $guard;
1459	return find $path;	1849	return find $path;
…		…
1470	my ($self) = @_;	1860	my ($self) = @_;
1471		1861
1472	local $self->{deny_reset} = 1; # loading can take a long time	1862	local $self->{deny_reset} = 1; # loading can take a long time
1473		1863
1474	my $path = $self->{path};	1864	my $path = $self->{path};
		1865
		1866	{
1475	my $guard = cf::lock_acquire "map_load:$path";	1867	my $guard = cf::lock_acquire "map_load:$path";
1476		1868
1477	return if $self->in_memory != cf::MAP_SWAPPED;	1869	return if $self->in_memory != cf::MAP_SWAPPED;
1478		1870
1479	$self->in_memory (cf::MAP_LOADING);	1871	$self->in_memory (cf::MAP_LOADING);
1480		1872
1481	$self->alloc;	1873	$self->alloc;
1482		1874
1483	$self->pre_load;	1875	$self->pre_load;
1484	Coro::cede;
1485
1486	$self->_load_objects ($self->{load_path}, 1)
1487	or return;
1488
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1490	if delete $self->{load_original};
1491
1492	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {
1495	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);
1497	}
1498	}
1499
1500	Coro::cede;
1501	# now do the right thing for maps
1502	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;	1876	Coro::cede;
1510	$self->set_darkness_map;	1877
		1878	$self->_load_objects ($self->{load_path}, 1)
		1879	or return;
		1880
		1881	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1882	if delete $self->{load_original};
		1883
		1884	if (my $uniq = $self->uniq_path) {
		1885	utf8::encode $uniq;
		1886	if (aio_open $uniq, O_RDONLY, 0) {
		1887	$self->clear_unique_items;
		1888	$self->_load_objects ($uniq, 0);
		1889	}
		1890	}
		1891
		1892	Coro::cede;
		1893	# now do the right thing for maps
		1894	$self->link_multipart_objects;
1511	$self->difficulty ($self->estimate_difficulty)	1895	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	1896	unless $self->difficulty;
1513	Coro::cede;	1897	Coro::cede;
		1898
		1899	unless ($self->{deny_activate}) {
		1900	$self->decay_objects;
		1901	$self->fix_auto_apply;
		1902	$self->update_buttons;
		1903	Coro::cede;
		1904	$self->set_darkness_map;
		1905	Coro::cede;
1514	$self->activate;	1906	$self->activate;
1515	Coro::cede;	1907	}
		1908
		1909	$self->in_memory (cf::MAP_IN_MEMORY);
1516	}	1910	}
1517		1911
1518	$self->post_load;	1912	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	1913	}
1523		1914
1524	sub customise_for {	1915	sub customise_for {
1525	my ($self, $ob) = @_;	1916	my ($self, $ob) = @_;
1526		1917
1527	return find "~" . $ob->name . "/" . $self->{path}	1918	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	1919	if $self->per_player;
		1920
		1921	# return find "?party/" . $ob->name . "/" . $self->{path}
		1922	# if $self->per_party;
1529		1923
1530	$self	1924	$self
1531	}	1925	}
1532		1926
1533	# find and load all maps in the 3x3 area around a map	1927	# find and load all maps in the 3x3 area around a map
…		…
1580		1974
1581	undef $MAP_PREFETCH{$path};	1975	undef $MAP_PREFETCH{$path};
1582	$MAP_PREFETCHER ||= cf::async {	1976	$MAP_PREFETCHER ||= cf::async {
1583	while (%MAP_PREFETCH) {	1977	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	1978	for my $path (keys %MAP_PREFETCH) {
1585	my $map = find $path	1979	if (my $map = find $path) {
1586	or next;
1587	$map->load;	1980	$map->load;
		1981	}
1588		1982
1589	delete $MAP_PREFETCH{$path};	1983	delete $MAP_PREFETCH{$path};
1590	}	1984	}
1591	}	1985	}
1592	undef $MAP_PREFETCHER;	1986	undef $MAP_PREFETCHER;
…		…
1644		2038
1645	sub reset_at {	2039	sub reset_at {
1646	my ($self) = @_;	2040	my ($self) = @_;
1647		2041
1648	# TODO: safety, remove and allow resettable per-player maps	2042	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	2043	return 1e99 if $self->{deny_reset};
1651		2044
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2045	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2046	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2047
…		…
1665	my ($self) = @_;	2058	my ($self) = @_;
1666		2059
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2061
1669	return if $self->players;	2062	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2063
1672	warn "resetting map ", $self->path;#d#	2064	warn "resetting map ", $self->path;
1673		2065
1674	$self->in_memory (cf::MAP_SWAPPED);	2066	$self->in_memory (cf::MAP_SWAPPED);
1675		2067
1676	# need to save uniques path	2068	# need to save uniques path
1677	unless ($self->{deny_save}) {	2069	unless ($self->{deny_save}) {
…		…
1709	$cf::MAP{$self->path} = $self;	2101	$cf::MAP{$self->path} = $self;
1710		2102
1711	$self->reset; # polite request, might not happen	2103	$self->reset; # polite request, might not happen
1712	}	2104	}
1713		2105
		2106	=item $maps = cf::map::tmp_maps
		2107
		2108	Returns an arrayref with all map paths of currently instantiated and saved
		2109	maps. May block.
		2110
		2111	=cut
		2112
		2113	sub tmp_maps() {
		2114	[
		2115	map {
		2116	utf8::decode $_;
		2117	/\.map$/
		2118	? normalise $_
		2119	: ()
		2120	} @{ aio_readdir $TMPDIR or [] }
		2121	]
		2122	}
		2123
		2124	=item $maps = cf::map::random_maps
		2125
		2126	Returns an arrayref with all map paths of currently instantiated and saved
		2127	random maps. May block.
		2128
		2129	=cut
		2130
		2131	sub random_maps() {
		2132	[
		2133	map {
		2134	utf8::decode $_;
		2135	/\.map$/
		2136	? normalise "?random/$_"
		2137	: ()
		2138	} @{ aio_readdir $RANDOMDIR or [] }
		2139	]
		2140	}
		2141
1714	=item cf::map::unique_maps	2142	=item cf::map::unique_maps
1715		2143
1716	Returns an arrayref of paths of all shared maps that have	2144	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2145	instantiated unique items. May block.
1718		2146
1719	=cut	2147	=cut
1720		2148
1721	sub unique_maps() {	2149	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2150	[
1723	or return;	2151	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2152	utf8::decode $_;
1729	next if /\.pst$/;	2153	/\.map$/
1730	next unless /^$PATH_SEP/o;	2154	? normalise $_
1731		2155	: ()
1732	push @paths, cf::map::normalise $_;	2156	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2157	]
1734
1735	\@paths
1736	}	2158	}
1737		2159
1738	package cf;	2160	package cf;
1739		2161
1740	=back	2162	=back
…		…
1786		2208
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2209	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2210
1789	if ($self->{record_replies}) {	2211	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2212	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2213
1791	} else {	2214	} else {
		2215	my $pl = $self->contr;
		2216
		2217	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2218	my $diag = $pl->{npc_dialog};
		2219	$diag->{pl}->ext_reply (
		2220	$diag->{id},
		2221	msgtype => "reply",
		2222	msg => $diag->{pl}->expand_cfpod ($msg),
		2223	add_topics => []
		2224	);
		2225
		2226	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2227	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2228	$self->message ($msg, $flags);
		2229	}
1794	}	2230	}
1795	}	2231	}
1796		2232
1797	=item $player_object->may ("access")	2233	=item $player_object->may ("access")
1798		2234
…		…
1846	$self->deactivate_recursive;	2282	$self->deactivate_recursive;
1847		2283
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2284	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2285
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2286	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2287	if $self->map && $self->map->{path} ne "{link}";
1852		2288
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2289	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2290	}
1855		2291
1856	sub cf::object::player::leave_link {	2292	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2293	my ($self, $map, $x, $y) = @_;
		2294
		2295	return unless $self->contr->active;
1858		2296
1859	my $link_pos = delete $self->{_link_pos};	2297	my $link_pos = delete $self->{_link_pos};
1860		2298
1861	unless ($map) {	2299	unless ($map) {
1862	# restore original map position	2300	# restore original map position
…		…
1885		2323
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2324	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2325	$self->enter_map ($map, $x, $y);
1888	}	2326	}
1889		2327
1890	cf::player->attach (	2328	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1891	on_logout => sub {
1892	my ($pl) = @_;
1893		2329
1894	# abort map switching before logout	2330	Moves the player to the given map-path and coordinates by first freezing
1895	if ($pl->ob->{_link_pos}) {	2331	her, loading and preparing them map, calling the provided $check callback
1896	cf::sync_job {	2332	that has to return the map if sucecssful, and then unfreezes the player on
1897	$pl->ob->leave_link	2333	the new (success) or old (failed) map position. In either case, $done will
1898	};	2334	be called at the end of this process.
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2335
1904	# try to abort aborted map switching on player login :)
1905	# should happen only on crashes
1906	if ($pl->ob->{_link_pos}) {
1907	$pl->ob->enter_link;
1908	(async {
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921
1922	=item $player_object->goto ($path, $x, $y)
1923
1924	=cut	2336	=cut
		2337
		2338	our $GOTOGEN;
1925		2339
1926	sub cf::object::player::goto {	2340	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2341	my ($self, $path, $x, $y, $check, $done) = @_;
		2342
		2343	# do generation counting so two concurrent goto's will be executed in-order
		2344	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2345
1929	$self->enter_link;	2346	$self->enter_link;
1930		2347
1931	(async {	2348	(async {
1932	my $map = eval {	2349	my $map = eval {
1933	my $map = cf::map::find $path;	2350	my $map = cf::map::find $path;
		2351
		2352	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2353	$map = $map->customise_for ($self);
		2354	$map = $check->($map) if $check && $map;
		2355	} else {
		2356	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2357	}
		2358
1935	$map	2359	$map
		2360	};
		2361
		2362	if ($@) {
		2363	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2364	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2365	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2366
		2367	if ($gen == $self->{_goto_generation}) {
		2368	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2369	$self->leave_link ($map, $x, $y);
		2370	}
		2371
		2372	$done->() if $done;
1940	})->prio (1);	2373	})->prio (1);
1941	}	2374	}
1942		2375
1943	=item $player_object->enter_exit ($exit_object)	2376	=item $player_object->enter_exit ($exit_object)
1944		2377
…		…
1983		2416
1984	$rmp->{random_seed} ||= $exit->random_seed;	2417	$rmp->{random_seed} ||= $exit->random_seed;
1985		2418
1986	my $data = cf::to_json $rmp;	2419	my $data = cf::to_json $rmp;
1987	my $md5 = Digest::MD5::md5_hex $data;	2420	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2421	my $meta = "$RANDOMDIR/$md5.meta";
1989		2422
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2423	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2424	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2425	undef $fh;
1993	aio_rename "$meta~", $meta;	2426	aio_rename "$meta~", $meta;
…		…
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2445	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;	2446	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;	2447	my $sp = $exit->stats->sp;
2015		2448
2016	$self->enter_link;	2449	$self->enter_link;
		2450
		2451	# if exit is damned, update players death & WoR home-position
		2452	$self->contr->savebed ($slaying, $hp, $sp)
		2453	if $exit->flag (FLAG_DAMNED);
2017		2454
2018	(async {	2455	(async {
2019	$self->deactivate_recursive; # just to be sure	2456	$self->deactivate_recursive; # just to be sure
2020	unless (eval {	2457	unless (eval {
2021	$self->goto ($slaying, $hp, $sp);	2458	$self->goto ($slaying, $hp, $sp);
…		…
2049		2486
2050	utf8::encode $text;	2487	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2488	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2489	}
2053		2490
		2491	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2492
		2493	Send a drawinfo or msg packet to the client, formatting the msg for the
		2494	client if neccessary. C<$type> should be a string identifying the type of
		2495	the message, with C<log> being the default. If C<$color> is negative, suppress
		2496	the message unless the client supports the msg packet.
		2497
		2498	=cut
		2499
		2500	sub cf::client::send_msg {
		2501	my ($self, $channel, $msg, $color, @extra) = @_;
		2502
		2503	$msg = $self->pl->expand_cfpod ($msg);
		2504
		2505	$color &= ~cf::NDI_UNIQUE; # just in case...
		2506
		2507	if (ref $channel) {
		2508	# send meta info to client, if not yet sent
		2509	unless (exists $self->{channel}{$channel->{id}}) {
		2510	$self->{channel}{$channel->{id}} = $channel;
		2511	$self->ext_event (channel_info => %$channel);
		2512	}
		2513
		2514	$channel = $channel->{id};
		2515	}
		2516
		2517	return unless @extra || length $msg;
		2518
		2519	if ($self->can_msg) {
		2520	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2521	} else {
		2522	# replace some tags by gcfclient-compatible ones
		2523	for ($msg) {
		2524	1 while
		2525	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2526	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2527	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2528	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2529	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2530	}
		2531
		2532	if ($color >= 0) {
		2533	if (0 && $msg =~ /\[/) {
		2534	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2535	} else {
		2536	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2537	$self->send_packet ("drawinfo $color $msg")
		2538	}
		2539	}
		2540	}
		2541	}
		2542
2054	=item $client->ext_event ($type, %msg)	2543	=item $client->ext_event ($type, %msg)
2055		2544
2056	Sends an exti event to the client.	2545	Sends an ext event to the client.
2057		2546
2058	=cut	2547	=cut
2059		2548
2060	sub cf::client::ext_event($$%) {	2549	sub cf::client::ext_event($$%) {
2061	my ($self, $type, %msg) = @_;	2550	my ($self, $type, %msg) = @_;
2062		2551
		2552	return unless $self->extcmd;
		2553
2063	$msg{msgtype} = "event_$type";	2554	$msg{msgtype} = "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	2555	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2065	}	2556	}
2066		2557
2067	=item $success = $client->query ($flags, "text", \&cb)	2558	=item $success = $client->query ($flags, "text", \&cb)
2068		2559
2069	Queues a query to the client, calling the given callback with	2560	Queues a query to the client, calling the given callback with
2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2561	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2071	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2562	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		2563
2073	Queries can fail, so check the return code. Or don't, as queries will become	2564	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	2565	become reliable at some point in the future.
2075		2566
2076	=cut	2567	=cut
2077		2568
2078	sub cf::client::query {	2569	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	2570	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	2578	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2579	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		2580
2090	$self->send_packet ($self->{query_queue}[0][0])	2581	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	2582	if @{ $self->{query_queue} } == 1;
		2583
		2584	1
2092	}	2585	}
2093		2586
2094	cf::client->attach (	2587	cf::client->attach (
		2588	on_connect => sub {
		2589	my ($ns) = @_;
		2590
		2591	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2592	},
2095	on_reply => sub {	2593	on_reply => sub {
2096	my ($ns, $msg) = @_;	2594	my ($ns, $msg) = @_;
2097		2595
2098	# this weird shuffling is so that direct followup queries	2596	# this weird shuffling is so that direct followup queries
2099	# get handled first	2597	# get handled first
…		…
2111	} else {	2609	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2610	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	2611	}
2114	}	2612	}
2115	},	2613	},
		2614	on_exticmd => sub {
		2615	my ($ns, $buf) = @_;
		2616
		2617	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2618
		2619	if (ref $msg) {
		2620	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2621	if (my %reply = $cb->($ns, $msg)) {
		2622	$reply{msgid} = $msg->{msgid};
		2623	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2624	}
		2625	}
		2626	} else {
		2627	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2628	}
		2629
		2630	cf::override;
		2631	},
2116	);	2632	);
2117		2633
2118	=item $client->async (\&cb)	2634	=item $client->async (\&cb)
2119		2635
2120	Create a new coroutine, running the specified callback. The coroutine will	2636	Create a new coroutine, running the specified callback. The coroutine will
…		…
2169		2685
2170	=pod	2686	=pod
2171		2687
2172	The following functions and methods are available within a safe environment:	2688	The following functions and methods are available within a safe environment:
2173		2689
2174	cf::object contr pay_amount pay_player map	2690	cf::object
		2691	contr pay_amount pay_player map x y force_find force_add
		2692	insert remove
		2693
2175	cf::object::player player	2694	cf::object::player
2176	cf::player peaceful	2695	player
2177	cf::map trigger	2696
		2697	cf::player
		2698	peaceful
		2699
		2700	cf::map
		2701	trigger
2178		2702
2179	=cut	2703	=cut
2180		2704
2181	for (	2705	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	2706	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2707	insert remove)],
2183	["cf::object::player" => qw(player)],	2708	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	2709	["cf::player" => qw(peaceful)],
2185	["cf::map" => qw(trigger)],	2710	["cf::map" => qw(trigger)],
2186	) {	2711	) {
2187	no strict 'refs';	2712	no strict 'refs';
…		…
2258	=back	2783	=back
2259		2784
2260	=cut	2785	=cut
2261		2786
2262	#############################################################################	2787	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333
2334	#############################################################################
2335	# the server's init and main functions	2788	# the server's init and main functions
2336		2789
2337	sub load_facedata($) {	2790	sub load_facedata($) {
2338	my ($path) = @_;	2791	my ($path) = @_;
2339		2792
…		…
2351	{	2804	{
2352	my $faces = $facedata->{faceinfo};	2805	my $faces = $facedata->{faceinfo};
2353		2806
2354	while (my ($face, $info) = each %$faces) {	2807	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2808	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2809	cf::face::set_visibility $idx, $info->{visibility};
		2810	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2811	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2812	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2359	Coro::cede;	2813
		2814	cf::cede_to_tick;
2360	}	2815	}
2361		2816
2362	while (my ($face, $info) = each %$faces) {	2817	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	2818	next unless $info->{smooth};
2364	my $idx = cf::face::find $face	2819	my $idx = cf::face::find $face
2365	or next;	2820	or next;
2366	if (my $smooth = cf::face::find $info->{smooth}) {	2821	if (my $smooth = cf::face::find $info->{smooth}) {
		2822	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2823	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	2824	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	2825	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	2826	}
2371	Coro::cede;	2827
		2828	cf::cede_to_tick;
2372	}	2829	}
2373	}	2830	}
2374		2831
2375	{	2832	{
2376	my $anims = $facedata->{animinfo};	2833	my $anims = $facedata->{animinfo};
2377		2834
2378	while (my ($anim, $info) = each %$anims) {	2835	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	2836	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	2837	cf::cede_to_tick;
2381	}	2838	}
2382		2839
2383	cf::anim::invalidate_all; # d'oh	2840	cf::anim::invalidate_all; # d'oh
2384	}	2841	}
2385		2842
		2843	{
		2844	# TODO: for gcfclient pleasure, we should give resources
		2845	# that gcfclient doesn't grok a >10000 face index.
		2846	my $res = $facedata->{resource};
		2847	my $enc = JSON::XS->new->utf8->canonical;
		2848
		2849	while (my ($name, $info) = each %$res) {
		2850	my $meta = $enc->encode ({
		2851	name => $name,
		2852	type => $info->{type},
		2853	copyright => $info->{copyright}, #TODO#
		2854	});
		2855
		2856	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2857
		2858	if ($name =~ /\.jpg$/) {
		2859	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2860	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2861	} else {
		2862	my $data = pack "(w/a*)*", $meta, $info->{data};
		2863	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2864
		2865	cf::face::set_type $idx, 1;
		2866	cf::face::set_data $idx, 0, $data, $chk;
		2867	}
		2868
		2869	cf::cede_to_tick;
		2870	}
		2871	}
		2872
2386	1	2873	1
2387	}	2874	}
2388		2875
		2876	sub reload_regions {
		2877	load_resource_file "$MAPDIR/regions"
		2878	or die "unable to load regions file\n";
		2879
		2880	for (cf::region::list) {
		2881	$_->{match} = qr/$_->{match}/
		2882	if exists $_->{match};
		2883	}
		2884	}
		2885
2389	sub reload_facedata {	2886	sub reload_facedata {
2390	load_facedata sprintf "%s/facedata", cf::datadir	2887	load_facedata "$DATADIR/facedata"
2391	or die "unable to load facedata\n";	2888	or die "unable to load facedata\n";
2392	}	2889	}
2393		2890
2394	sub reload_regions {
2395	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2396	or die "unable to load regions file\n";
2397	}
2398
2399	sub reload_archetypes {	2891	sub reload_archetypes {
2400	load_resource_file sprintf "%s/archetypes", cf::datadir	2892	load_resource_file "$DATADIR/archetypes"
2401	or die "unable to load archetypes\n";	2893	or die "unable to load archetypes\n";
		2894	#d# NEED to laod twice to resolve forward references
		2895	# this really needs to be done in an extra post-pass
		2896	# (which needs to be synchronous, so solve it differently)
		2897	load_resource_file "$DATADIR/archetypes"
		2898	or die "unable to load archetypes\n";
2402	}	2899	}
2403		2900
2404	sub reload_treasures {	2901	sub reload_treasures {
2405	load_resource_file sprintf "%s/treasures", cf::datadir	2902	load_resource_file "$DATADIR/treasures"
2406	or die "unable to load treasurelists\n";	2903	or die "unable to load treasurelists\n";
2407	}	2904	}
2408		2905
2409	sub reload_resources {	2906	sub reload_resources {
2410	warn "reloading resource files...\n";	2907	warn "reloading resource files...\n";
2411		2908
2412	reload_regions;	2909	reload_regions;
2413	reload_facedata;	2910	reload_facedata;
		2911	#reload_archetypes;#d#
2414	reload_archetypes;	2912	reload_archetypes;
2415	reload_treasures;	2913	reload_treasures;
2416		2914
2417	warn "finished reloading resource files\n";	2915	warn "finished reloading resource files\n";
2418	}	2916	}
…		…
2420	sub init {	2918	sub init {
2421	reload_resources;	2919	reload_resources;
2422	}	2920	}
2423		2921
2424	sub cfg_load {	2922	sub cfg_load {
2425	open my $fh, "<:utf8", cf::confdir . "/config"	2923	open my $fh, "<:utf8", "$CONFDIR/config"
2426	or return;	2924	or return;
2427		2925
2428	local $/;	2926	local $/;
2429	*CFG = YAML::Syck::Load <$fh>;	2927	*CFG = YAML::Syck::Load <$fh>;
2430		2928
…		…
2475	},	2973	},
2476	);	2974	);
2477	}	2975	}
2478	}	2976	}
2479		2977
		2978	sub write_runtime {
		2979	my $runtime = "$LOCALDIR/runtime";
		2980
		2981	# first touch the runtime file to show we are still running:
		2982	# the fsync below can take a very very long time.
		2983
		2984	IO::AIO::aio_utime $runtime, undef, undef;
		2985
		2986	my $guard = cf::lock_acquire "write_runtime";
		2987
		2988	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2989	or return;
		2990
		2991	my $value = $cf::RUNTIME + 90 + 10;
		2992	# 10 is the runtime save interval, for a monotonic clock
		2993	# 60 allows for the watchdog to kill the server.
		2994
		2995	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2996	and return;
		2997
		2998	# always fsync - this file is important
		2999	aio_fsync $fh
		3000	and return;
		3001
		3002	# touch it again to show we are up-to-date
		3003	aio_utime $fh, undef, undef;
		3004
		3005	close $fh
		3006	or return;
		3007
		3008	aio_rename "$runtime~", $runtime
		3009	and return;
		3010
		3011	warn "runtime file written.\n";
		3012
		3013	1
		3014	}
		3015
2480	sub emergency_save() {	3016	sub emergency_save() {
2481	my $freeze_guard = cf::freeze_mainloop;	3017	my $freeze_guard = cf::freeze_mainloop;
2482		3018
2483	warn "enter emergency perl save\n";	3019	warn "enter emergency perl save\n";
2484		3020
…		…
2559	%EXT_CORO = ();	3095	%EXT_CORO = ();
2560		3096
2561	warn "removing commands";	3097	warn "removing commands";
2562	%COMMAND = ();	3098	%COMMAND = ();
2563		3099
2564	warn "removing ext commands";	3100	warn "removing ext/exti commands";
2565	%EXTCMD = ();	3101	%EXTCMD = ();
		3102	%EXTICMD = ();
2566		3103
2567	warn "unloading/nuking all extensions";	3104	warn "unloading/nuking all extensions";
2568	for my $pkg (@EXTS) {	3105	for my $pkg (@EXTS) {
2569	warn "... unloading $pkg";	3106	warn "... unloading $pkg";
2570		3107
…		…
2600	Symbol::delete_package "safe::$_"	3137	Symbol::delete_package "safe::$_"
2601	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3138	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2602		3139
2603	warn "unloading cf.pm \"a bit\"";	3140	warn "unloading cf.pm \"a bit\"";
2604	delete $INC{"cf.pm"};	3141	delete $INC{"cf.pm"};
		3142	delete $INC{"cf/pod.pm"};
2605		3143
2606	# don't, removes xs symbols, too,	3144	# don't, removes xs symbols, too,
2607	# and global variables created in xs	3145	# and global variables created in xs
2608	#Symbol::delete_package __PACKAGE__;	3146	#Symbol::delete_package __PACKAGE__;
2609		3147
…		…
2687	my $signal = new Coro::Signal;	3225	my $signal = new Coro::Signal;
2688	push @WAIT_FOR_TICK_BEGIN, $signal;	3226	push @WAIT_FOR_TICK_BEGIN, $signal;
2689	$signal->wait;	3227	$signal->wait;
2690	}	3228	}
2691		3229
		3230	my $min = 1e6;#d#
		3231	my $avg = 10;
2692	$TICK_WATCHER = Event->timer (	3232	$TICK_WATCHER = Event->timer (
2693	reentrant => 0,	3233	reentrant => 0,
2694	parked => 1,	3234	parked => 1,
2695	prio => 0,	3235	prio => 0,
2696	at => $NEXT_TICK || $TICK,	3236	at => $NEXT_TICK || $TICK,
…		…
2700	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3240	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2701	unless ++$bug_warning > 10;	3241	unless ++$bug_warning > 10;
2702	return;	3242	return;
2703	}	3243	}
2704		3244
2705	$NOW = Event::time;	3245	$NOW = $tick_start = Event::time;
2706		3246
2707	cf::server_tick; # one server iteration	3247	cf::server_tick; # one server iteration
		3248
		3249	0 && sync_job {#d#
		3250	for(1..10) {
		3251	my $t = Event::time;
		3252	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3253	or die;
		3254
		3255	$map->width (50);
		3256	$map->height (50);
		3257	$map->alloc;
		3258	$map->_load_objects ("/tmp/x.map", 1);
		3259	my $t = Event::time - $t;
		3260
		3261	#next unless $t < 0.0013;#d#
		3262	if ($t < $min) {
		3263	$min = $t;
		3264	}
		3265	$avg = $avg * 0.99 + $t * 0.01;
		3266	}
		3267	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3268	exit 0;
		3269	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3270	};
2708		3271
2709	$RUNTIME += $TICK;	3272	$RUNTIME += $TICK;
2710	$NEXT_TICK += $TICK;	3273	$NEXT_TICK += $TICK;
2711		3274
2712	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3275	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2718	}	3281	}
2719		3282
2720	# my $AFTER = Event::time;	3283	# my $AFTER = Event::time;
2721	# warn $AFTER - $NOW;#d#	3284	# warn $AFTER - $NOW;#d#
2722		3285
		3286	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3287	$sig->send;
		3288	}
		3289	while (my $sig = shift @WAIT_FOR_TICK) {
		3290	$sig->send;
		3291	}
		3292
		3293	$NOW = Event::time;
		3294
2723	# if we are delayed by four ticks or more, skip them all	3295	# if we are delayed by four ticks or more, skip them all
2724	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3296	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2725		3297
2726	$TICK_WATCHER->at ($NEXT_TICK);	3298	$TICK_WATCHER->at ($NEXT_TICK);
2727	$TICK_WATCHER->start;	3299	$TICK_WATCHER->start;
2728		3300
2729	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3301	$LOAD = ($NOW - $tick_start) / $TICK;
2730	$sig->send;	3302	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2731	}
2732	while (my $sig = shift @WAIT_FOR_TICK) {
2733	$sig->send;
2734	}
2735		3303
2736	_post_tick;	3304	_post_tick;
		3305
		3306
2737	},	3307	},
2738	);	3308	);
2739		3309
2740	{	3310	{
2741	BDB::max_poll_time $TICK * 0.1;	3311	BDB::max_poll_time $TICK * 0.1;
…		…
2769		3339
2770	cf::sync_job {	3340	cf::sync_job {
2771	eval {	3341	eval {
2772	BDB::db_env_open	3342	BDB::db_env_open
2773	$DB_ENV,	3343	$DB_ENV,
2774	$BDB_ENV_DIR,	3344	$BDBDIR,
2775	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3345	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2776	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3346	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2777	0666;	3347	0666;
2778		3348
2779	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3349	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2780		3350
2781	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3351	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2782	$DB_ENV->set_lk_detect;	3352	$DB_ENV->set_lk_detect;
2783	};	3353	};
2784		3354
…		…
2800	prio => 6,	3370	prio => 6,
2801	cb => \&IO::AIO::poll_cb,	3371	cb => \&IO::AIO::poll_cb,
2802	);	3372	);
2803	}	3373	}
2804		3374
		3375	my $_log_backtrace;
		3376
		3377	sub _log_backtrace {
		3378	my ($msg, @addr) = @_;
		3379
		3380	$msg =~ s/\n//;
		3381
		3382	# limit the # of concurrent backtraces
		3383	if ($_log_backtrace < 2) {
		3384	++$_log_backtrace;
		3385	async {
		3386	my @bt = fork_call {
		3387	@addr = map { sprintf "%x", $_ } @addr;
		3388	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3389	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3390	or die "addr2line: $!";
		3391
		3392	my @funcs;
		3393	my @res = <$fh>;
		3394	chomp for @res;
		3395	while (@res) {
		3396	my ($func, $line) = splice @res, 0, 2, ();
		3397	push @funcs, "[$func] $line";
		3398	}
		3399
		3400	@funcs
		3401	};
		3402
		3403	LOG llevInfo, "[ABT] $msg\n";
		3404	LOG llevInfo, "[ABT] $_\n" for @bt;
		3405	--$_log_backtrace;
		3406	};
		3407	} else {
		3408	LOG llevInfo, "[ABT] $msg\n";
		3409	LOG llevInfo, "[ABT] [suppressed]\n";
		3410	}
		3411	}
		3412
		3413	# load additional modules
		3414	use cf::pod;
		3415
2805	END { cf::emergency_save }	3416	END { cf::emergency_save }
2806		3417
2807	1	3418	1
2808		3419

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