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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.170 by root, Sun Jan 14 02:00:37 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 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;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
43		57
		58	our $RELOAD; # number of reloads so far
44	our @EVENT;	59	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		60
47	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	74	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	77	our $NEXT_TICK;
52	our $NOW;	78	our $NOW;
		79	our $USE_FSYNC = 1; # use fsync to write maps - default off
		80
		81	our $BDB_POLL_WATCHER;
		82	our $DB_ENV;
53		83
54	our %CFG;	84	our %CFG;
55		85
56	our $UPTIME; $UPTIME ||= time;	86	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	87	our $RUNTIME;
58		88
59	our %PLAYER; # all users	89	our %PLAYER; # all users
60	our %MAP; # all maps	90	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	91	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		92
67	# used to convert map paths into valid unix filenames by replacing / by ∕	93	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
		99
70	binmode STDOUT;	100	binmode STDOUT;
71	binmode STDERR;	101	binmode STDERR;
72		102
73	# read virtual server time, if available	103	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
78	}	108	}
79		109
80	mkdir cf::localdir;	110	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		112
86	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
		114
		115	sub cf::map::normalise;
87		116
88	#############################################################################	117	#############################################################################
89		118
90	=head2 GLOBAL VARIABLES	119	=head2 GLOBAL VARIABLES
91		120
…		…
98	=item $cf::RUNTIME	127	=item $cf::RUNTIME
99		128
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	130	every server tick.
102		131
103	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		135
105	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
107		140
108	=item $cf::NOW	141	=item $cf::NOW
109		142
110	The time of the last (current) server tick.	143	The time of the last (current) server tick.
111		144
112	=item $cf::TICK	145	=item $cf::TICK
113		146
114	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
115		158
116	=item %cf::CFG	159	=item %cf::CFG
117		160
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	162	from wherever your confdir points to.
120		163
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	164	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		165
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	167	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.
127		169
128	=back	170	=back
129		171
130	=cut	172	=cut
131		173
132	BEGIN {	174	BEGIN {
133	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	176	my $msg = join "", @_;
135	utf8::encode $msg;
136		177
137	$msg .= "\n"	178	$msg .= "\n"
138	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
139		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
140	LOG llevError, $msg;	184	LOG llevError, $msg;
141	};	185	};
142	}	186	}
143		187
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		195
151	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	197	# within the Safe compartment.
153	for my $pkg (qw(	198	for my $pkg (qw(
154	cf::global cf::attachable	199	cf::global cf::attachable
…		…
162	}	207	}
163		208
164	$Event::DIED = sub {	209	$Event::DIED = sub {
165	warn "error in event callback: @_";	210	warn "error in event callback: @_";
166	};	211	};
		212
		213	#############################################################################
167		214
168	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
169		216
170	=over 4	217	=over 4
171		218
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	238	$d
192	} || "[unable to dump $_[0]: '$@']";	239	} || "[unable to dump $_[0]: '$@']";
193	}	240	}
194		241
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
196		243
197	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
198		245
199	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
200		247
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
209		249
210	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
211		251
212	=cut	252	=cut
213		253
214	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
216	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
218		258
219	=item cf::lock_wait $string	259	=item cf::lock_wait $string
220		260
221	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
222		262
…		…
228	returned.	268	returned.
229		269
230	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
232		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
233	=cut	277	=cut
234		278
235	our %LOCK;	279	our %LOCK;
236		280
237	sub lock_wait($) {	281	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
258	}	302	}
259	}	303	}
260		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
261	sub freeze_mainloop {	311	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
263		313
264	my $guard = Coro::guard {	314	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	315	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	316	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
270	$guard	318	$guard
271	}	319	}
272		320
273	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
…		…
280		328
281	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
282		330
283	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
284		332
285	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
288		337
289	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
292	fast or be very important.	341	fast or be very important.
…		…
295		344
296	sub sync_job(&) {	345	sub sync_job(&) {
297	my ($job) = @_;	346	my ($job) = @_;
298		347
299	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
300	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
302		353
303	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
315		366
316	while ($busy) {	367	while ($busy) {
317	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
318	}	369	}
319		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
320	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
321	} else {	379	} else {
322	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
323		381
324	$job->()	382	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
344		402
345	$coro	403	$coro
346	}	404	}
347		405
348	sub write_runtime {	406	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		407
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
352	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
353		412
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		414
358	aio_fsync $fh	415	sub fork_call(&@) {
359	and return;	416	my ($cb, @args) = @_;
360		417
		418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
		422
		423	if (my $pid = fork) {
361	close $fh	424	close $fh2;
362	or return;
363		425
364	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
365	and return;	427	$res = Coro::Storable::thaw $res;
366		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
367	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
		564	}
		565
		566	=item cf::datalog type => key => value, ...
		567
		568	Log a datalog packet of the given type with the given key-value pairs.
		569
		570	=cut
		571
		572	sub datalog($@) {
		573	my ($type, %kv) = @_;
		574	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	575	}
369		576
370	=back	577	=back
371		578
372	=cut	579	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
381		588
382	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	591	Crossfire TRT).
385		592
386	=over 4	593	=over 4
387		594
388	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
389		596
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
553		760
554	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		765
559	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	767	my $pkg = shift @arg;
561		768
562	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
592	}	799	}
593		800
594	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
595	} else {	802	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	804	}
598		805
599	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
600	}	807	}
601		808
…		…
603	if (ref $_[0]) {	810	if (ref $_[0]) {
604	_object_attach @_;	811	_object_attach @_;
605	} else {	812	} else {
606	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
607	}	814	}
		815	_recalc_want;
608	};	816	};
609		817
610	# all those should be optimised	818	# all those should be optimised
611	sub cf::attachable::detach {	819	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
616	reattach ($obj);	824	reattach ($obj);
617	} else {	825	} else {
618	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
619	}	827	}
		828	_recalc_want;
620	};	829	};
621		830
622	sub cf::attachable::attached {	831	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
624		833
…		…
747	$filename, length $$rdata, scalar @$objs;	956	$filename, length $$rdata, scalar @$objs;
748		957
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	958	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	959	chmod SAVE_MODE, $fh;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	960	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	962	close $fh;
754		963
755	if (@$objs) {	964	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	965	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	966	chmod SAVE_MODE, $fh;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	967	my $data = Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	968	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	969	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	970	close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	971	aio_rename "$filename.pst~", "$filename.pst";
763	}	972	}
764	} else {	973	} else {
765	aio_unlink "$filename.pst";	974	aio_unlink "$filename.pst";
…		…
797	or return;	1006	or return;
798	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
799	}	1008	}
800		1009
801	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
803	return ($data, $av);	1012	return ($data, $av);
804	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
805		1020
806	#############################################################################	1021	#############################################################################
807	# command handling &c	1022	# command handling &c
808		1023
809	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1038	}
824		1039
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1041
827	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
828		1047
829	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
830	called.	1049	called.
831		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
832	=cut	1062	=cut
833		1063
834	sub register_extcmd {	1064	sub register_extcmd {
835	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
836		1066
837	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
838	}	1074	}
839		1075
840	cf::player->attach (	1076	cf::player->attach (
841	on_command => sub {	1077	on_command => sub {
842	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
867		1103
868	cf::override;	1104	cf::override;
869	},	1105	},
870	);	1106	);
871		1107
872	sub load_extension {
873	my ($path) = @_;
874
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
876	my $base = $1;
877	my $pkg = $1;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}
900	die $@;
901	}
902
903	push @EXTS, $pkg;
904	}
905
906	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
907	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1113	next unless -r $path;
909	eval {	1114
910	load_extension $ext;	1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
911	1	1172	}
912	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
913	}	1178	};
914	}	1179	}
915		1180
916	#############################################################################	1181	#############################################################################
917		1182
		1183	=back
		1184
918	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
919		1186
920	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
921		1188
922	=cut	1189	=cut
…		…
934	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
935		1202
936	=cut	1203	=cut
937		1204
938	sub playerdir($) {	1205	sub playerdir($) {
939	cf::localdir	1206	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1208	}
945		1209
946	sub path($) {	1210	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1212
949	(playerdir $login) . "/$login.pl"	1213	(playerdir $login) . "/playerdata"
950	}	1214	}
951		1215
952	sub find_active($) {	1216	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1217	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1218	and $cf::PLAYER{$_[0]}->active
…		…
957		1221
958	sub exists($) {	1222	sub exists($) {
959	my ($login) = @_;	1223	my ($login) = @_;
960		1224
961	$cf::PLAYER{$login}	1225	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1226	or cf::sync_job { !aio_stat path $login }
963	}	1227	}
964		1228
965	sub find($) {	1229	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1230	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1231	my $login = $_[0];
968		1232
969	my $guard = cf::lock_acquire "user_find:$login";	1233	my $guard = cf::lock_acquire "user_find:$login";
970		1234
971	$cf::PLAYER{$_[0]} || do {	1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
972	my $pl = load_pl path $login	1243	my $pl = load_pl path $login
973	or return;	1244	or return;
974	$cf::PLAYER{$login} = $pl	1245	$cf::PLAYER{$login} = $pl
975	}	1246	}
976	}	1247	}
…		…
1013		1284
1014	=cut	1285	=cut
1015		1286
1016	sub quit_character {	1287	sub quit_character {
1017	my ($pl) = @_;	1288	my ($pl) = @_;
		1289
		1290	my $name = $pl->ob->name;
1018		1291
1019	$pl->{deny_save} = 1;	1292	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1293	$pl->password ("*"); # this should lock out the player until we nuked the dir
1021		1294
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1295	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1027	my $path = playerdir $pl;	1300	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1301	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1302	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1303	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1304	$pl->destroy;
		1305
		1306	my $prefix = qr<^~\Q$name\E/>;
		1307
		1308	# nuke player maps
		1309	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1310
1032	IO::AIO::aio_rmtree $temp;	1311	IO::AIO::aio_rmtree $temp;
		1312	}
		1313
		1314	=item $pl->kick
		1315
		1316	Kicks a player out of the game. This destroys the connection.
		1317
		1318	=cut
		1319
		1320	sub kick {
		1321	my ($pl, $kicker) = @_;
		1322
		1323	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1324	$pl->killer ("kicked");
		1325	$pl->ns->destroy;
1033	}	1326	}
1034		1327
1035	=item cf::player::list_logins	1328	=item cf::player::list_logins
1036		1329
1037	Returns am arrayref of all valid playernames in the system, can take a	1330	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1039		1332
1040	=cut	1333	=cut
1041		1334
1042	sub list_logins {	1335	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1337	or return [];
1045		1338
1046	my @logins;	1339	my @logins;
1047		1340
1048	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1065	=cut	1358	=cut
1066		1359
1067	sub maps($) {	1360	sub maps($) {
1068	my ($pl) = @_;	1361	my ($pl) = @_;
1069		1362
		1363	$pl = ref $pl ? $pl->ob->name : $pl;
		1364
1070	my $files = aio_readdir playerdir $pl	1365	my $files = aio_readdir playerdir $pl
1071	or return;	1366	or return;
1072		1367
1073	my @paths;	1368	my @paths;
1074		1369
1075	for (@$files) {	1370	for (@$files) {
1076	utf8::decode $_;	1371	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1372	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1373	next unless /^$PATH_SEP/o;
1079		1374
1080	s/\.map$//;	1375	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1376	}
1083		1377
1084	\@paths	1378	\@paths
1085	}	1379	}
1086		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1088		1415
1089	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1090		1417
1091	=cut	1418	=cut
1092		1419
1093	sub ext_reply($$$%) {	1420	sub ext_reply($$%) {
1094	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1095		1422
1096	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1097
1098	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1099	}	1425	}
1100		1426
1101	package cf;	1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
		1454	my ($path) = @_;
		1455
		1456	my ($match, $specificity);
		1457
		1458	for my $region (list) {
		1459	if ($region->match && $path =~ $region->match) {
		1460	($match, $specificity) = ($region, $region->specificity)
		1461	if $region->specificity > $specificity;
		1462	}
		1463	}
		1464
		1465	$match
		1466	}
1102		1467
1103	=back	1468	=back
1104
1105		1469
1106	=head3 cf::map	1470	=head3 cf::map
1107		1471
1108	=over 4	1472	=over 4
1109		1473
…		…
1113		1477
1114	use Fcntl;	1478	use Fcntl;
1115	use Coro::AIO;	1479	use Coro::AIO;
1116		1480
1117	use overload	1481	use overload
1118	'""' => \&as_string;	1482	'""' => \&as_string,
		1483	fallback => 1;
1119		1484
1120	our $MAX_RESET = 3600;	1485	our $MAX_RESET = 3600;
1121	our $DEFAULT_RESET = 3000;	1486	our $DEFAULT_RESET = 3000;
1122		1487
1123	sub generate_random_map {	1488	sub generate_random_map {
1124	my ($self, $rmp) = @_;	1489	my ($self, $rmp) = @_;
1125
1126	# mit "rum" bekleckern, nicht	1490	# mit "rum" bekleckern, nicht
1127	$self->_create_random_map (	1491	$self->_create_random_map (
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1492	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1493	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1494	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1501	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1502	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1503	)
1140	}	1504	}
1141		1505
		1506	=item cf::map->register ($regex, $prio)
		1507
		1508	Register a handler for the map path matching the given regex at the
		1509	givne priority (higher is better, built-in handlers have priority 0, the
		1510	default).
		1511
		1512	=cut
		1513
1142	sub register {	1514	sub register {
1143	my (undef, $regex) = @_;	1515	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1516	my $pkg = caller;
1145		1517
1146	no strict;	1518	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1519	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1520
1149	$EXT_MAP{$pkg} = qr<$regex>;	1521	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1522	}
1151		1523
1152	# also paths starting with '/'	1524	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1525	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1526
1155	sub thawer_merge {	1527	sub thawer_merge {
		1528	my ($self, $merge) = @_;
		1529
1156	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1157	local $_[0]{path};	1531	local $self->{path};
1158	local $_[0]{deny_save};	1532	local $self->{load_path};
1159	local $_[0]{deny_reset};
1160		1533
1161	$_[0]->SUPER::thawer_merge ($_[1]);	1534	$self->SUPER::thawer_merge ($merge);
1162	}	1535	}
1163		1536
1164	sub normalise {	1537	sub normalise {
1165	my ($path, $base) = @_;	1538	my ($path, $base) = @_;
		1539
		1540	$path = "$path"; # make sure its a string
		1541
		1542	$path =~ s/\.map$//;
1166		1543
1167	# map plan:	1544	# map plan:
1168	#	1545	#
1169	# /! non-realised random map exit (special hack!)	1546	# /! non-realised random map exit (special hack!)
1170	# {... are special paths that are not being touched	1547	# {... are special paths that are not being touched
…		…
1198		1575
1199	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1576	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1200		1577
1201	$path = normalise $path, $base;	1578	$path = normalise $path, $base;
1202		1579
1203	for my $pkg (keys %EXT_MAP) {	1580	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1204	if ($path =~ $EXT_MAP{$pkg}) {	1581	if ($path =~ $EXT_MAP{$pkg}[1]) {
1205	my $self = bless cf::map::new, $pkg;	1582	my $self = bless cf::map::new, $pkg;
1206	$self->{path} = $path; $self->path ($path);	1583	$self->{path} = $path; $self->path ($path);
1207	$self->init; # pass $1 etc.	1584	$self->init; # pass $1 etc.
1208	return $self;	1585	return $self;
1209	}	1586	}
1210	}	1587	}
1211		1588
1212	Carp::carp "unable to resolve path '$path'.";	1589	Carp::carp "unable to resolve path '$path' (base '$base').";
1213	()	1590	()
1214	}	1591	}
1215		1592
1216	sub init {	1593	sub init {
1217	my ($self) = @_;	1594	my ($self) = @_;
…		…
1232		1609
1233	# the original (read-only) location	1610	# the original (read-only) location
1234	sub load_path {	1611	sub load_path {
1235	my ($self) = @_;	1612	my ($self) = @_;
1236		1613
1237	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1238	}	1615	}
1239		1616
1240	# the temporary/swap location	1617	# the temporary/swap location
1241	sub save_path {	1618	sub save_path {
1242	my ($self) = @_;	1619	my ($self) = @_;
1243		1620
1244	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1245	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1246	}	1623	}
1247		1624
1248	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1249	sub uniq_path {	1626	sub uniq_path {
1250	my ($self) = @_;	1627	my ($self) = @_;
1251		1628
1252	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1253	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1254	}	1631	}
1255		1632
1256	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1257	# all maps in C++...	1634	# all maps in C++...
1258	sub change_all_map_light {	1635	sub change_all_map_light {
…		…
1260		1637
1261	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1262	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1263	}	1640	}
1264		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
1265	sub unlink_save {	1650	sub unlink_save {
1266	my ($self) = @_;	1651	my ($self) = @_;
1267		1652
1268	utf8::encode (my $save = $self->save_path);	1653	utf8::encode (my $save = $self->save_path);
1269	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1272		1657
1273	sub load_header_from($) {	1658	sub load_header_from($) {
1274	my ($self, $path) = @_;	1659	my ($self, $path) = @_;
1275		1660
1276	utf8::encode $path;	1661	utf8::encode $path;
1277	aio_open $path, O_RDONLY, 0	1662	#aio_open $path, O_RDONLY, 0
1278	or return;	1663	# or return;
1279		1664
1280	$self->_load_header ($path)	1665	$self->_load_header ($path)
1281	or return;	1666	or return;
1282		1667
1283	$self->{load_path} = $path;	1668	$self->{load_path} = $path;
1284		1669
1285	1	1670	1
1286	}	1671	}
1287		1672
1288	sub load_orig {	1673	sub load_header_orig {
1289	my ($self) = @_;	1674	my ($self) = @_;
1290		1675
1291	$self->load_header_from ($self->load_path)	1676	$self->load_header_from ($self->load_path)
1292	}	1677	}
1293		1678
1294	sub load_temp {	1679	sub load_header_temp {
1295	my ($self) = @_;	1680	my ($self) = @_;
1296		1681
1297	$self->load_header_from ($self->save_path)	1682	$self->load_header_from ($self->save_path)
		1683	}
		1684
		1685	sub prepare_temp {
		1686	my ($self) = @_;
		1687
		1688	$self->last_access ((delete $self->{last_access})
		1689	|| $cf::RUNTIME); #d#
		1690	# safety
		1691	$self->{instantiate_time} = $cf::RUNTIME
		1692	if $self->{instantiate_time} > $cf::RUNTIME;
		1693	}
		1694
		1695	sub prepare_orig {
		1696	my ($self) = @_;
		1697
		1698	$self->{load_original} = 1;
		1699	$self->{instantiate_time} = $cf::RUNTIME;
		1700	$self->last_access ($cf::RUNTIME);
		1701	$self->instantiate;
1298	}	1702	}
1299		1703
1300	sub load_header {	1704	sub load_header {
1301	my ($self) = @_;	1705	my ($self) = @_;
1302		1706
1303	if ($self->load_temp) {	1707	if ($self->load_header_temp) {
1304	$self->last_access ((delete $self->{last_access})	1708	$self->prepare_temp;
1305	|| $cf::RUNTIME); #d#
1306	# safety
1307	$self->{instantiate_time} = $cf::RUNTIME
1308	if $self->{instantiate_time} > $cf::RUNTIME;
1309	} else {	1709	} else {
1310	$self->load_orig	1710	$self->load_header_orig
1311	or return;	1711	or return;
1312		1712	$self->prepare_orig;
1313	$self->{load_original} = 1;
1314	$self->{instantiate_time} = $cf::RUNTIME;
1315	$self->last_access ($cf::RUNTIME);
1316	$self->instantiate;
1317	}	1713	}
		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
		1718	$self->default_region (cf::region::find_by_path $self->{path})
		1719	unless $self->default_region;
1318		1720
1319	1	1721	1
1320	}	1722	}
1321		1723
1322	sub find;	1724	sub find;
…		…
1335	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1336		1738
1337	$map->load_header	1739	$map->load_header
1338	or return;	1740	or return;
1339		1741
1340	if ($map->should_reset) {	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1743	# doing this can freeze the server in a sync job, obviously
		1744	#$cf::WAIT_FOR_TICK->wait;
1341	$map->reset;	1745	$map->reset;
1342	undef $guard;	1746	undef $guard;
1343	$map = find $path	1747	return find $path;
1344	or return;
1345	}	1748	}
1346		1749
1347	$cf::MAP{$path} = $map	1750	$cf::MAP{$path} = $map
1348	}	1751	}
1349	}	1752	}
		1753
		1754	sub pre_load { }
		1755	sub post_load { }
1350		1756
1351	sub load {	1757	sub load {
1352	my ($self) = @_;	1758	my ($self) = @_;
1353		1759
		1760	local $self->{deny_reset} = 1; # loading can take a long time
		1761
1354	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1355	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1356		1766
1357	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1358		1768
1359	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1360		1770
1361	$self->alloc;	1771	$self->alloc;
1362	$self->_load_objects ($self->{load_path}, 1)
1363	or return;
1364		1772
1365	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1773	$self->pre_load;
1366	if delete $self->{load_original};
1367
1368	if (my $uniq = $self->uniq_path) {
1369	utf8::encode $uniq;
1370	if (aio_open $uniq, O_RDONLY, 0) {
1371	$self->clear_unique_items;
1372	$self->_load_objects ($uniq, 0);
1373	}
1374	}
1375
1376	Coro::cede;
1377
1378	# now do the right thing for maps
1379	$self->link_multipart_objects;
1380
1381	unless ($self->{deny_activate}) {
1382	$self->decay_objects;
1383	$self->fix_auto_apply;
1384	$self->update_buttons;
1385	Coro::cede;	1774	Coro::cede;
1386	$self->set_darkness_map;	1775
		1776	$self->_load_objects ($self->{load_path}, 1)
		1777	or return;
		1778
		1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1780	if delete $self->{load_original};
		1781
		1782	if (my $uniq = $self->uniq_path) {
		1783	utf8::encode $uniq;
		1784	if (aio_open $uniq, O_RDONLY, 0) {
		1785	$self->clear_unique_items;
		1786	$self->_load_objects ($uniq, 0);
		1787	}
		1788	}
		1789
		1790	Coro::cede;
		1791	# now do the right thing for maps
		1792	$self->link_multipart_objects;
1387	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1388	unless $self->difficulty;	1794	unless $self->difficulty;
1389	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1390	$self->activate;	1804	$self->activate;
1391	}	1805	}
1392		1806
1393	$self->in_memory (cf::MAP_IN_MEMORY);	1807	$self->in_memory (cf::MAP_IN_MEMORY);
		1808	}
		1809
		1810	$self->post_load;
1394	}	1811	}
1395		1812
1396	sub customise_for {	1813	sub customise_for {
1397	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1398		1815
1399	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1400	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1401		1821
1402	$self	1822	$self
1403	}	1823	}
1404		1824
1405	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1437		1857
1438	cf::sync_job { $map->load };	1858	cf::sync_job { $map->load };
1439	}	1859	}
1440		1860
1441	our %MAP_PREFETCH;	1861	our %MAP_PREFETCH;
1442	our $MAP_PREFETCHER = Coro::async {	1862	our $MAP_PREFETCHER = undef;
1443	while () {
1444	for my $path (keys %MAP_PREFETCH) {
1445	my $map = find $path
1446	or next;
1447	$map->load;
1448
1449	delete $MAP_PREFETCH{$path};
1450	}
1451	Coro::schedule;
1452	}
1453	};
1454		1863
1455	sub find_async {	1864	sub find_async {
1456	my ($path, $origin) = @_;	1865	my ($path, $origin) = @_;
1457		1866
1458	$path = normalise $path, $origin && $origin->{path};	1867	$path = normalise $path, $origin && $origin->{path};
1459		1868
1460	if (my $map = $cf::MAP{$path}) {	1869	if (my $map = $cf::MAP{$path}) {
1461	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1870	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1462	}	1871	}
1463		1872
1464	$MAP_PREFETCH{$path} = 0;	1873	undef $MAP_PREFETCH{$path};
		1874	$MAP_PREFETCHER ||= cf::async {
		1875	while (%MAP_PREFETCH) {
		1876	for my $path (keys %MAP_PREFETCH) {
		1877	my $map = find $path
		1878	or next;
		1879	$map->load;
		1880
		1881	delete $MAP_PREFETCH{$path};
		1882	}
		1883	}
		1884	undef $MAP_PREFETCHER;
		1885	};
1465	$MAP_PREFETCHER->ready;	1886	$MAP_PREFETCHER->prio (6);
1466		1887
1467	()	1888	()
1468	}	1889	}
1469		1890
1470	sub save {	1891	sub save {
…		…
1515		1936
1516	sub reset_at {	1937	sub reset_at {
1517	my ($self) = @_;	1938	my ($self) = @_;
1518		1939
1519	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1520	return 1e99 if $self->isa ("ext::map_per_player");#d#
1521	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1522		1942
1523	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1524	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1525		1945
…		…
1530	my ($self) = @_;	1950	my ($self) = @_;
1531		1951
1532	$self->reset_at <= $cf::RUNTIME	1952	$self->reset_at <= $cf::RUNTIME
1533	}	1953	}
1534		1954
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	normalise $new_path;
1539
1540	$self->unlink_save;
1541
1542	delete $cf::MAP{$self->path};
1543	$self->{path} = $new_path; $self->path ($self->{path});
1544	$cf::MAP{$self->path} = $self;
1545
1546	$self->save;
1547	}
1548
1549	sub reset {	1955	sub reset {
1550	my ($self) = @_;	1956	my ($self) = @_;
1551		1957
1552	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1553		1959
1554	return if $self->players;	1960	return if $self->players;
1555	return if $self->isa ("ext::map_per_player");#d#
1556		1961
1557	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
		1963
		1964	$self->in_memory (cf::MAP_SWAPPED);
		1965
		1966	# need to save uniques path
		1967	unless ($self->{deny_save}) {
		1968	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1969
		1970	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1971	if $uniq;
		1972	}
1558		1973
1559	delete $cf::MAP{$self->path};	1974	delete $cf::MAP{$self->path};
1560		1975
1561	$self->in_memory (cf::MAP_SWAPPED);
1562	$self->clear;	1976	$self->clear;
1563		1977
1564	$_->clear_links_to ($self) for values %cf::MAP;	1978	$_->clear_links_to ($self) for values %cf::MAP;
1565		1979
1566	$self->unlink_save;	1980	$self->unlink_save;
…		…
1570	my $nuke_counter = "aaaa";	1984	my $nuke_counter = "aaaa";
1571		1985
1572	sub nuke {	1986	sub nuke {
1573	my ($self) = @_;	1987	my ($self) = @_;
1574		1988
		1989	delete $cf::MAP{$self->path};
		1990
		1991	$self->unlink_save;
		1992
		1993	bless $self, "cf::map";
		1994	delete $self->{deny_reset};
1575	$self->{deny_save} = 1;	1995	$self->{deny_save} = 1;
1576	$self->reset_timeout (1);	1996	$self->reset_timeout (1);
1577	$self->rename ("{nuke}/" . ($nuke_counter++));	1997	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1998
		1999	$cf::MAP{$self->path} = $self;
		2000
1578	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
		2002	}
		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
		2012	[
		2013	map {
		2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
		2020	}
		2021
		2022	=item $maps = cf::map::random_maps
		2023
		2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
		2026
		2027	=cut
		2028
		2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
1579	}	2038	}
1580		2039
1581	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1582		2041
1583	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1584	instantiated unique items. May block.	2043	instantiated unique items. May block.
1585		2044
1586	=cut	2045	=cut
1587		2046
1588	sub unique_maps() {	2047	sub unique_maps() {
1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1590	or return;	2049	map {
1591
1592	my @paths;
1593
1594	for (@$files) {
1595	utf8::decode $_;	2050	utf8::decode $_;
1596	next if /\.pst$/;
1597	next unless /^$PATH_SEP/o;
1598
1599	s/\.map$//;	2051	/\.map$/
1600	push @paths, $_;	2052	? normalise $_
		2053	: ()
		2054	} @{ aio_readdir $UNIQUEDIR or [] }
1601	}	2055	]
1602
1603	\@paths
1604	}	2056	}
1605		2057
1606	package cf;	2058	package cf;
1607		2059
1608	=back	2060	=back
…		…
1654		2106
1655	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1656		2108
1657	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1658	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1659	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1660	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1661	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1662	}	2128	}
1663	}	2129	}
1664		2130
1665	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1666		2132
…		…
1699	=cut	2165	=cut
1700		2166
1701	sub link_map {	2167	sub link_map {
1702	unless ($LINK_MAP) {	2168	unless ($LINK_MAP) {
1703	$LINK_MAP = cf::map::find "{link}"	2169	$LINK_MAP = cf::map::find "{link}"
1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2170	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1705	$LINK_MAP->load;	2171	$LINK_MAP->load;
1706	}	2172	}
1707		2173
1708	$LINK_MAP	2174	$LINK_MAP
1709	}	2175	}
…		…
1714	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1715		2181
1716	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1717		2183
1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1719	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1720		2186
1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1722	}	2188	}
1723		2189
1724	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1725	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1726		2194
1727	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1728		2196
1729	unless ($map) {	2197	unless ($map) {
1730	# restore original map position	2198	# restore original map position
…		…
1748	$map->load;	2216	$map->load;
1749	$map->load_diag;	2217	$map->load_diag;
1750		2218
1751	return unless $self->contr->active;	2219	return unless $self->contr->active;
1752	$self->activate_recursive;	2220	$self->activate_recursive;
		2221
		2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1753	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1754	}	2224	}
1755		2225
1756	cf::player->attach (
1757	on_logout => sub {
1758	my ($pl) = @_;
1759
1760	# abort map switching before logout
1761	if ($pl->ob->{_link_pos}) {
1762	cf::sync_job {
1763	$pl->ob->leave_link
1764	};
1765	}
1766	},
1767	on_login => sub {
1768	my ($pl) = @_;
1769
1770	# try to abort aborted map switching on player login :)
1771	# should happen only on crashes
1772	if ($pl->ob->{_link_pos}) {
1773	$pl->ob->enter_link;
1774	(async {
1775	# we need this sleep as the login has a concurrent enter_exit running
1776	# and this sleep increases chances of the player not ending up in scorn
1777	$pl->ob->reply (undef,
1778	"There was an internal problem at your last logout, "
1779	. "the server will try to bring you to your intended destination in a second.",
1780	cf::NDI_RED);
1781	Coro::Timer::sleep 1;
1782	$pl->ob->leave_link;
1783	})->prio (2);
1784	}
1785	},
1786	);
1787
1788	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1789		2227
		2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
		2232
1790	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1791		2236
1792	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1793	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1794		2242
1795	$self->enter_link;	2243	$self->enter_link;
1796		2244
1797	(async {	2245	(async {
		2246	my $map = eval {
1798	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1799	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
1800		2251	$map = $check->($map) if $check && $map;
1801	# warn "entering ", $map->path, " at ($x, $y)\n"	2252	} else {
1802	# if $map;
1803
1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
1805		2255
		2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
		2262	}
		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1806	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1807	})->prio (1);	2268	})->prio (1);
1808	}	2269	}
1809		2270
1810	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1811		2272
…		…
1813		2274
1814	sub parse_random_map_params {	2275	sub parse_random_map_params {
1815	my ($spec) = @_;	2276	my ($spec) = @_;
1816		2277
1817	my $rmp = { # defaults	2278	my $rmp = { # defaults
1818	xsize => 10,	2279	xsize => (cf::rndm 15, 40),
1819	ysize => 10,	2280	ysize => (cf::rndm 15, 40),
		2281	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2282	#layout => string,
1820	};	2283	};
1821		2284
1822	for (split /\n/, $spec) {	2285	for (split /\n/, $spec) {
1823	my ($k, $v) = split /\s+/, $_, 2;	2286	my ($k, $v) = split /\s+/, $_, 2;
1824		2287
…		…
1828	$rmp	2291	$rmp
1829	}	2292	}
1830		2293
1831	sub prepare_random_map {	2294	sub prepare_random_map {
1832	my ($exit) = @_;	2295	my ($exit) = @_;
		2296
		2297	my $guard = cf::lock_acquire "exit_prepare:$exit";
1833		2298
1834	# all this does is basically replace the /! path by	2299	# all this does is basically replace the /! path by
1835	# a new random map path (?random/...) with a seed	2300	# a new random map path (?random/...) with a seed
1836	# that depends on the exit object	2301	# that depends on the exit object
1837		2302
1838	my $rmp = parse_random_map_params $exit->msg;	2303	my $rmp = parse_random_map_params $exit->msg;
1839		2304
1840	if ($exit->map) {	2305	if ($exit->map) {
1841	$rmp->{region} = $exit->map->region_name;	2306	$rmp->{region} = $exit->region->name;
1842	$rmp->{origin_map} = $exit->map->path;	2307	$rmp->{origin_map} = $exit->map->path;
1843	$rmp->{origin_x} = $exit->x;	2308	$rmp->{origin_x} = $exit->x;
1844	$rmp->{origin_y} = $exit->y;	2309	$rmp->{origin_y} = $exit->y;
1845	}	2310	}
1846		2311
1847	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1848		2313
1849	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1850	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
		2316	my $meta = "$RANDOMDIR/$md5.meta";
1851		2317
1852	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1853	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
		2320	undef $fh;
		2321	aio_rename "$meta~", $meta;
1854		2322
1855	$exit->slaying ("?random/$md5");	2323	$exit->slaying ("?random/$md5");
1856	$exit->msg (undef);	2324	$exit->msg (undef);
1857	}	2325	}
1858	}	2326	}
1859		2327
1860	sub cf::object::player::enter_exit {	2328	sub cf::object::player::enter_exit {
1861	my ($self, $exit) = @_;	2329	my ($self, $exit) = @_;
1862		2330
1863	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
		2332
		2333	if ($exit->slaying eq "/!") {
		2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
		2337	cf::sync_job { prepare_random_map $exit };
		2338	}
		2339
		2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2341	my $hp = $exit->stats->hp;
		2342	my $sp = $exit->stats->sp;
1864		2343
1865	$self->enter_link;	2344	$self->enter_link;
1866		2345
1867	(async {	2346	(async {
1868	$self->deactivate_recursive; # just to be sure	2347	$self->deactivate_recursive; # just to be sure
1869	unless (eval {	2348	unless (eval {
1870	prepare_random_map $exit	2349	$self->goto ($slaying, $hp, $sp);
1871	if $exit->slaying eq "/!";
1872
1873	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1874	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1875		2350
1876	1;	2351	1;
1877	}) {	2352	}) {
1878	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1879	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1880	. "Please report this to the dungeon master!",	2355	. "Please report this to the dungeon master!",
1881	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1882		2357
1883	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1884	$self->leave_link;	2359	$self->leave_link;
1885	}	2360	}
1886	})->prio (1);	2361	})->prio (1);
…		…
1899		2374
1900	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1901	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1902		2377
1903	utf8::encode $text;	2378	utf8::encode $text;
1904	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1905	}	2380	}
1906		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
1907		2432
1908	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1909		2434
1910	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1911	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1912	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1913		2438
1914	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
1915	reliable at some point in the future.	2440	become reliable at some point in the future.
1916		2441
1917	=cut	2442	=cut
1918		2443
1919	sub cf::client::query {	2444	sub cf::client::query {
1920	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
1928	utf8::encode $text;	2453	utf8::encode $text;
1929	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1930		2455
1931	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
1932	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
1933	}	2460	}
1934		2461
1935	cf::client->attach (	2462	cf::client->attach (
1936	on_reply => sub {	2463	on_reply => sub {
1937	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
1940	# get handled first	2467	# get handled first
1941	my $queue = delete $ns->{query_queue}	2468	my $queue = delete $ns->{query_queue}
1942	or return; # be conservative, not sure how that can happen, but we saw a crash here	2469	or return; # be conservative, not sure how that can happen, but we saw a crash here
1943		2470
1944	(shift @$queue)->[1]->($msg);	2471	(shift @$queue)->[1]->($msg);
		2472	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1945		2473
1946	push @{ $ns->{query_queue} }, @$queue;	2474	push @{ $ns->{query_queue} }, @$queue;
1947		2475
1948	if (@{ $ns->{query_queue} } == @$queue) {	2476	if (@{ $ns->{query_queue} } == @$queue) {
1949	if (@$queue) {	2477	if (@$queue) {
…		…
1951	} else {	2479	} else {
1952	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1953	}	2481	}
1954	}	2482	}
1955	},	2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
		2501	},
1956	);	2502	);
1957		2503
1958	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
1959		2505
1960	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
…		…
2007		2553
2008	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
2009		2555
2010	=pod	2556	=pod
2011		2557
2012	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
2013		2559
2014	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
2015	cf::object::player player	2561	cf::object::player player
2016	cf::player peaceful	2562	cf::player peaceful
2017	cf::map trigger	2563	cf::map trigger
…		…
2098	=back	2644	=back
2099		2645
2100	=cut	2646	=cut
2101		2647
2102	#############################################################################	2648	#############################################################################
		2649	# the server's init and main functions
2103		2650
2104	=head2 EXTENSION DATABASE SUPPORT	2651	sub load_facedata($) {
		2652	my ($path) = @_;
2105		2653
2106	Crossfire maintains a very simple database for extension use. It can	2654	warn "loading facedata from $path\n";
2107	currently store anything that can be serialised using Storable, which
2108	excludes objects.
2109		2655
2110	The parameter C<$family> should best start with the name of the extension	2656	my $facedata;
2111	using it, it should be unique.	2657	0 < aio_load $path, $facedata
		2658	or die "$path: $!";
2112		2659
2113	=over 4	2660	$facedata = Coro::Storable::thaw $facedata;
2114		2661
2115	=item $hashref = cf::db_get $family	2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
2116		2664
2117	Return a hashref for use by the extension C<$family>, which can be
2118	modified. After modifications, you have to call C<cf::db_dirty> or
2119	C<cf::db_sync>.
2120
2121	=item $value = cf::db_get $family => $key
2122
2123	Returns a single value from the database
2124
2125	=item cf::db_put $family => $hashref
2126
2127	Stores the given family hashref into the database. Updates are delayed, if
2128	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_put $family => $key => $value
2131
2132	Stores the given C<$value> in the family hash. Updates are delayed, if you
2133	want the data to be synced to disk immediately, use C<cf::db_sync>.
2134
2135	=item cf::db_dirty
2136
2137	Marks the database as dirty, to be updated at a later time.
2138
2139	=item cf::db_sync
2140
2141	Immediately write the database to disk I<if it is dirty>.
2142
2143	=cut
2144
2145	our $DB;
2146
2147	{
2148	my $path = cf::localdir . "/database.pst";
2149
2150	sub db_load() {
2151	$DB = stat $path ? Storable::retrieve $path : { };
2152	}	2665	{
		2666	my $faces = $facedata->{faceinfo};
2153		2667
2154	my $pid;	2668	while (my ($face, $info) = each %$faces) {
2155		2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2156	sub db_save() {	2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2157	waitpid $pid, 0 if $pid;	2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2158	if (0 == ($pid = fork)) {	2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2159	$DB->{_meta}{version} = 1;	2673	Coro::cede;
2160	Storable::nstore $DB, "$path~";
2161	rename "$path~", $path;
2162	cf::_exit 0 if defined $pid;
2163	}
2164	}
2165
2166	my $dirty;
2167
2168	sub db_sync() {
2169	db_save if $dirty;
2170	undef $dirty;
2171	}
2172
2173	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2174	db_sync;
2175	});
2176
2177	sub db_dirty() {
2178	$dirty = 1;
2179	$idle->start;
2180	}
2181
2182	sub db_get($;$) {
2183	@_ >= 2
2184	? $DB->{$_[0]}{$_[1]}
2185	: ($DB->{$_[0]} ||= { })
2186	}
2187
2188	sub db_put($$;$) {
2189	if (@_ >= 3) {
2190	$DB->{$_[0]}{$_[1]} = $_[2];
2191	} else {
2192	$DB->{$_[0]} = $_[1];
2193	}
2194	db_dirty;
2195	}
2196
2197	cf::global->attach (
2198	prio => 10000,
2199	on_cleanup => sub {
2200	db_sync;
2201	},	2674	}
2202	);
2203	}
2204		2675
2205	#############################################################################	2676	while (my ($face, $info) = each %$faces) {
2206	# the server's main()	2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
		2698	}
		2699
		2700	1
		2701	}
		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
		2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
		2723	sub reload_resources {
		2724	warn "reloading resource files...\n";
		2725
		2726	reload_regions;
		2727	reload_facedata;
		2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
		2733	}
		2734
		2735	sub init {
		2736	reload_resources;
		2737	}
2207		2738
2208	sub cfg_load {	2739	sub cfg_load {
2209	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2210	or return;	2741	or return;
2211		2742
2212	local $/;	2743	local $/;
2213	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2214		2745
…		…
2228		2759
2229	sub main {	2760	sub main {
2230	# we must not ever block the main coroutine	2761	# we must not ever block the main coroutine
2231	local $Coro::idle = sub {	2762	local $Coro::idle = sub {
2232	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2763	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2764	(async {
2233	async { Event::one_event };	2765	Event::one_event;
		2766	})->prio (Coro::PRIO_MAX);
2234	};	2767	};
2235		2768
2236	cfg_load;	2769	cfg_load;
2237	db_load;	2770	db_init;
2238	load_extensions;	2771	load_extensions;
		2772
		2773	$TICK_WATCHER->start;
2239	Event::loop;	2774	Event::loop;
2240	}	2775	}
2241		2776
2242	#############################################################################	2777	#############################################################################
2243	# initialisation and cleanup	2778	# initialisation and cleanup
2244		2779
2245	# install some emergency cleanup handlers	2780	# install some emergency cleanup handlers
2246	BEGIN {	2781	BEGIN {
2247	for my $signal (qw(INT HUP TERM)) {	2782	for my $signal (qw(INT HUP TERM)) {
2248	Event->signal (	2783	Event->signal (
		2784	reentrant => 0,
2249	data => WF_AUTOCANCEL,	2785	data => WF_AUTOCANCEL,
2250	signal => $signal,	2786	signal => $signal,
		2787	prio => 0,
2251	cb => sub {	2788	cb => sub {
2252	cf::cleanup "SIG$signal";	2789	cf::cleanup "SIG$signal";
2253	},	2790	},
2254	);	2791	);
2255	}	2792	}
		2793	}
		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
2256	}	2831	}
2257		2832
2258	sub emergency_save() {	2833	sub emergency_save() {
2259	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2260		2835
…		…
2277	my $map = $cf::MAP{$path} or next;	2852	my $map = $cf::MAP{$path} or next;
2278	$map->valid or next;	2853	$map->valid or next;
2279	$map->save;	2854	$map->save;
2280	}	2855	}
2281	warn "end emergency map save\n";	2856	warn "end emergency map save\n";
		2857
		2858	warn "begin emergency database checkpoint\n";
		2859	BDB::db_env_txn_checkpoint $DB_ENV;
		2860	warn "end emergency database checkpoint\n";
2282	};	2861	};
2283		2862
2284	warn "leave emergency perl save\n";	2863	warn "leave emergency perl save\n";
2285	}	2864	}
2286		2865
		2866	sub post_cleanup {
		2867	my ($make_core) = @_;
		2868
		2869	warn Carp::longmess "post_cleanup backtrace"
		2870	if $make_core;
		2871	}
		2872
2287	sub reload() {	2873	sub do_reload_perl() {
2288	# can/must only be called in main	2874	# can/must only be called in main
2289	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2290	warn "can only reload from main coroutine\n";	2876	warn "can only reload from main coroutine";
2291	return;	2877	return;
2292	}	2878	}
2293		2879
2294	warn "reloading...";	2880	warn "reloading...";
2295		2881
2296	warn "freezing server";	2882	warn "entering sync_job";
2297	my $guard = freeze_mainloop;	2883
		2884	cf::sync_job {
		2885	cf::write_runtime; # external watchdog should not bark
2298	cf::emergency_save;	2886	cf::emergency_save;
		2887	cf::write_runtime; # external watchdog should not bark
2299		2888
2300	warn "sync database to disk";	2889	warn "syncing database to disk";
2301	cf::db_sync;	2890	BDB::db_env_txn_checkpoint $DB_ENV;
2302	IO::AIO::flush;
2303		2891
2304	eval {
2305	# if anything goes wrong in here, we should simply crash as we already saved	2892	# if anything goes wrong in here, we should simply crash as we already saved
2306		2893
2307	warn "cancel all watchers";	2894	warn "cancelling all WF_AUTOCANCEL watchers";
2308	for (Event::all_watchers) {	2895	for (Event::all_watchers) {
2309	$_->cancel if $_->data & WF_AUTOCANCEL;	2896	$_->cancel if $_->data & WF_AUTOCANCEL;
2310	}	2897	}
2311		2898
		2899	warn "flushing outstanding aio requests";
		2900	for (;;) {
		2901	BDB::flush;
		2902	IO::AIO::flush;
		2903	Coro::cede;
		2904	last unless IO::AIO::nreqs || BDB::nreqs;
		2905	warn "iterate...";
		2906	}
		2907
		2908	++$RELOAD;
		2909
2312	warn "cancel all extension coros";	2910	warn "cancelling all extension coros";
2313	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
2314	%EXT_CORO = ();	2912	%EXT_CORO = ();
2315		2913
2316	warn "remove commands";	2914	warn "removing commands";
2317	%COMMAND = ();	2915	%COMMAND = ();
2318		2916
2319	warn "remove ext commands";	2917	warn "removing ext/exti commands";
2320	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2321		2920
2322	warn "unload/nuke all extensions";	2921	warn "unloading/nuking all extensions";
2323	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2324	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2325		2924
2326	if (my $cb = $pkg->can ("unload")) {	2925	if (my $cb = $pkg->can ("unload")) {
2327	eval {	2926	eval {
…		…
2332		2931
2333	warn "... nuking $pkg";	2932	warn "... nuking $pkg";
2334	Symbol::delete_package $pkg;	2933	Symbol::delete_package $pkg;
2335	}	2934	}
2336		2935
2337	warn "unload all perl modules loaded from $LIBDIR";	2936	warn "unloading all perl modules loaded from $LIBDIR";
2338	while (my ($k, $v) = each %INC) {	2937	while (my ($k, $v) = each %INC) {
2339	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2340		2939
2341	warn "removing <$k>";	2940	warn "... unloading $k";
2342	delete $INC{$k};	2941	delete $INC{$k};
2343		2942
2344	$k =~ s/\.pm$//;	2943	$k =~ s/\.pm$//;
2345	$k =~ s/\//::/g;	2944	$k =~ s/\//::/g;
2346		2945
…		…
2349	}	2948	}
2350		2949
2351	Symbol::delete_package $k;	2950	Symbol::delete_package $k;
2352	}	2951	}
2353		2952
2354	warn "get rid of safe::, as good as possible";	2953	warn "getting rid of safe::, as good as possible";
2355	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2356	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2357		2956
2358	warn "unload cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2359	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2360		2960
2361	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2362	# and global variables created in xs	2962	# and global variables created in xs
2363	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2364		2964
		2965	warn "unload completed, starting to reload now";
		2966
2365	warn "reloading cf.pm";	2967	warn "reloading cf.pm";
2366	require cf;	2968	require cf;
2367	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2969	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2368		2970
2369	warn "load config and database again";	2971	warn "loading config and database again";
2370	cf::cfg_load;	2972	cf::cfg_load;
2371	cf::db_load;
2372		2973
2373	warn "load extensions";	2974	warn "loading extensions";
2374	cf::load_extensions;	2975	cf::load_extensions;
2375		2976
2376	warn "reattach attachments to objects/players";	2977	warn "reattaching attachments to objects/players";
2377	_global_reattach;	2978	_global_reattach; # objects, sockets
2378	warn "reattach attachments to maps";	2979	warn "reattaching attachments to maps";
2379	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
2380	};	2981	warn "reattaching attachments to players";
		2982	reattach $_ for values %PLAYER;
2381		2983
2382	if ($@) {	2984	warn "leaving sync_job";
		2985
		2986	1
		2987	} or do {
2383	warn $@;	2988	warn $@;
2384	warn "error while reloading, exiting.";	2989	warn "error while reloading, exiting.";
2385	exit 1;	2990	exit 1;
2386	}	2991	};
2387		2992
2388	warn "reloaded";	2993	warn "reloaded";
2389	};	2994	};
2390		2995
		2996	our $RELOAD_WATCHER; # used only during reload
		2997
		2998	sub reload_perl() {
		2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
		3001
		3002	$RELOAD_WATCHER ||= Event->timer (
		3003	reentrant => 0,
		3004	after => 0,
		3005	data => WF_AUTOCANCEL,
		3006	cb => sub {
		3007	do_reload_perl;
		3008	undef $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2391	register_command "reload" => sub {	3013	register_command "reload" => sub {
2392	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2393		3015
2394	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2395	$who->message ("start of reload.");
2396	reload;
2397	$who->message ("end of reload.");	3017	$who->message ("reloading server.");
		3018	async { reload_perl };
2398	}	3019	}
2399	};	3020	};
2400		3021
2401	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2402		3023
		3024	my $bug_warning = 0;
		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2403	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2404	reentrant => 0,	3050	reentrant => 0,
		3051	parked => 1,
2405	prio => 0,	3052	prio => 0,
2406	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
2407	data => WF_AUTOCANCEL,	3054	data => WF_AUTOCANCEL,
2408	cb => sub {	3055	cb => sub {
		3056	if ($Coro::current != $Coro::main) {
		3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3058	unless ++$bug_warning > 10;
		3059	return;
		3060	}
		3061
2409	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2410		3063
2411	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
		3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3087	};
		3088
2412	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2413	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2414		3091
2415	$WAIT_FOR_TICK->broadcast;	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2416	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3094	Coro::async_pool {
		3095	write_runtime
		3096	or warn "ERROR: unable to write runtime file: $!";
		3097	};
		3098	}
		3099
		3100	# my $AFTER = Event::time;
		3101	# warn $AFTER - $NOW;#d#
		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
2417		3111
2418	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2419	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2420		3114
2421	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2422	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2423	},	3124	},
2424	);	3125	);
2425		3126
		3127	{
		3128	BDB::max_poll_time $TICK * 0.1;
		3129	$BDB_POLL_WATCHER = Event->io (
		3130	reentrant => 0,
		3131	fd => BDB::poll_fileno,
		3132	poll => 'r',
		3133	prio => 0,
		3134	data => WF_AUTOCANCEL,
		3135	cb => \&BDB::poll_cb,
		3136	);
		3137	BDB::min_parallel 8;
		3138
		3139	BDB::set_sync_prepare {
		3140	my $status;
		3141	my $current = $Coro::current;
		3142	(
		3143	sub {
		3144	$status = $!;
		3145	$current->ready; undef $current;
		3146	},
		3147	sub {
		3148	Coro::schedule while defined $current;
		3149	$! = $status;
		3150	},
		3151	)
		3152	};
		3153
		3154	unless ($DB_ENV) {
		3155	$DB_ENV = BDB::db_env_create;
		3156
		3157	cf::sync_job {
		3158	eval {
		3159	BDB::db_env_open
		3160	$DB_ENV,
		3161	$BDBDIR,
		3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3164	0666;
		3165
		3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3167
		3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3169	$DB_ENV->set_lk_detect;
		3170	};
		3171
		3172	cf::cleanup "db_env_open(db): $@" if $@;
		3173	};
		3174	}
		3175	}
		3176
		3177	{
		3178	IO::AIO::min_parallel 8;
		3179
		3180	undef $Coro::AIO::WATCHER;
2426	IO::AIO::max_poll_time $TICK * 0.2;	3181	IO::AIO::max_poll_time $TICK * 0.1;
2427
2428	$AIO_POLL_WATCHER = Event->io (	3182	$AIO_POLL_WATCHER = Event->io (
2429	fd => IO::AIO::poll_fileno,	3183	reentrant => 0,
2430	poll => 'r',
2431	prio => 5,
2432	data => WF_AUTOCANCEL,
2433	cb => \&IO::AIO::poll_cb,
2434	);
2435
2436	$WRITE_RUNTIME_WATCHER = Event->timer (
2437	data => WF_AUTOCANCEL,	3184	data => WF_AUTOCANCEL,
2438	after => 0,	3185	fd => IO::AIO::poll_fileno,
2439	interval => 10,	3186	poll => 'r',
2440	cb => sub {	3187	prio => 6,
2441	(Coro::unblock_sub {	3188	cb => \&IO::AIO::poll_cb,
2442	write_runtime	3189	);
2443	or warn "ERROR: unable to write runtime file: $!";	3190	}
		3191
		3192	my $_log_backtrace;
		3193
		3194	sub _log_backtrace {
		3195	my ($msg, @addr) = @_;
		3196
		3197	$msg =~ s/\n//;
		3198
		3199	# limit the # of concurrent backtraces
		3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
2444	})->();	3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
2445	},	3227	}
2446	);	3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
2447		3232
2448	END { cf::emergency_save }	3233	END { cf::emergency_save }
2449		3234
2450	1	3235	1
2451		3236

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