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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.172 by root, Sun Jan 14 13:32:48 2007 UTC vs.
Revision 1.296 by root, Wed Jul 4 07:09:06 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 JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
26		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$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		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
53		84
54	our %CFG;	85	our %CFG;
55		86
56	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	88	our $RUNTIME;
58		89
59	our %PLAYER; # all users	90	our %PLAYER; # all users
60	our %MAP; # all maps	91	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	92	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		93
67	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
70	binmode STDOUT;	101	binmode STDOUT;
71	binmode STDERR;	102	binmode STDERR;
72		103
73	# read virtual server time, if available	104	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
78	}	109	}
79		110
80	mkdir cf::localdir;	111	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		113
86	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
87		117
88	#############################################################################	118	#############################################################################
89		119
90	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
91		121
…		…
98	=item $cf::RUNTIME	128	=item $cf::RUNTIME
99		129
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	131	every server tick.
102		132
103	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		136
105	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
107		141
108	=item $cf::NOW	142	=item $cf::NOW
109		143
110	The time of the last (current) server tick.	144	The time of the last (current) server tick.
111		145
112	=item $cf::TICK	146	=item $cf::TICK
113		147
114	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
115		159
116	=item %cf::CFG	160	=item %cf::CFG
117		161
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	163	from wherever your confdir points to.
120		164
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		166
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	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	168	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	169	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		170
128	=back	171	=back
129		172
130	=cut	173	=cut
131		174
132	BEGIN {	175	BEGIN {
133	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	177	my $msg = join "", @_;
135	utf8::encode $msg;
136		178
137	$msg .= "\n"	179	$msg .= "\n"
138	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
139		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
140	LOG llevError, $msg;	185	LOG llevError, $msg;
141	};	186	};
142	}	187	}
143		188
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		196
151	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	198	# within the Safe compartment.
153	for my $pkg (qw(	199	for my $pkg (qw(
154	cf::global cf::attachable	200	cf::global cf::attachable
…		…
162	}	208	}
163		209
164	$Event::DIED = sub {	210	$Event::DIED = sub {
165	warn "error in event callback: @_";	211	warn "error in event callback: @_";
166	};	212	};
		213
		214	#############################################################################
167		215
168	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
169		217
170	=over 4	218	=over 4
171		219
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	239	$d
192	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
193	}	241	}
194		242
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
198		244
199	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
200		246
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
209		248
210	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
211		250
212	=cut	251	=cut
213		252
214	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
216	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
218		257
219	=item cf::lock_wait $string	258	=item cf::lock_wait $string
220		259
221	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
222		261
…		…
228	returned.	267	returned.
229		268
230	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
232		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
233	=cut	276	=cut
234		277
235	our %LOCK;	278	our %LOCK;
236		279
237	sub lock_wait($) {	280	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
258	}	301	}
259	}	302	}
260		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
261	sub freeze_mainloop {	310	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
263		312
264	my $guard = Coro::guard {	313	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	314	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	315	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
270	$guard	317	$guard
271	}	318	}
272		319
273	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
280		327
281	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
282		329
283	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
284		331
285	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
288		336
289	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
292	fast or be very important.	340	fast or be very important.
…		…
295		343
296	sub sync_job(&) {	344	sub sync_job(&) {
297	my ($job) = @_;	345	my ($job) = @_;
298		346
299	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
300	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
302		352
303	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
315		365
316	while ($busy) {	366	while ($busy) {
317	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
318	}	368	}
319		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
320	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
321	} else {	378	} else {
322	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
323		380
324	$job->()	381	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
344		401
345	$coro	402	$coro
346	}	403	}
347		404
348	sub write_runtime {	405	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		406
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
352	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
353		411
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		413
358	aio_fsync $fh	414	sub fork_call(&@) {
359	and return;	415	my ($cb, @args) = @_;
360		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
361	close $fh	423	close $fh2;
362	or return;
363		424
364	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
365	and return;	426	$res = Coro::Storable::thaw $res;
366		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
367	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	574	}
369		575
370	=back	576	=back
371		577
372	=cut	578	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
381		587
382	In the following description, CLASS can be any of C<global>, C<object>	588	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	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	590	Crossfire TRT).
385		591
386	=over 4	592	=over 4
387		593
388	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
389		595
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
553		759
554	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		764
559	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	766	my $pkg = shift @arg;
561		767
562	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
592	}	798	}
593		799
594	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
595	} else {	801	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	803	}
598		804
599	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
600	}	806	}
601		807
…		…
603	if (ref $_[0]) {	809	if (ref $_[0]) {
604	_object_attach @_;	810	_object_attach @_;
605	} else {	811	} else {
606	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
607	}	813	}
		814	_recalc_want;
608	};	815	};
609		816
610	# all those should be optimised	817	# all those should be optimised
611	sub cf::attachable::detach {	818	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
616	reattach ($obj);	823	reattach ($obj);
617	} else {	824	} else {
618	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
619	}	826	}
		827	_recalc_want;
620	};	828	};
621		829
622	sub cf::attachable::attached {	830	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
624		832
…		…
747	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
748		956
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	961	close $fh;
754		962
755	if (@$objs) {	963	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	969	close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
763	}	971	}
764	} else {	972	} else {
765	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
797	or return;	1005	or return;
798	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
799	}	1007	}
800		1008
801	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
803	return ($data, $av);	1011	return ($data, $av);
804	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
805		1019
806	#############################################################################	1020	#############################################################################
807	# command handling &c	1021	# command handling &c
808		1022
809	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1037	}
824		1038
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1040
827	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
828		1046
829	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
830	called.	1048	called.
831		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
832	=cut	1061	=cut
833		1062
834	sub register_extcmd {	1063	sub register_extcmd {
835	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
836		1065
837	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
838	}	1073	}
839		1074
840	cf::player->attach (	1075	cf::player->attach (
841	on_command => sub {	1076	on_command => sub {
842	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
851	cf::override;	1086	cf::override;
852	},	1087	},
853	on_extcmd => sub {	1088	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
855		1090
856	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1092
858	if (ref $msg) {	1093	if (ref $msg) {
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
860	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
861	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
867		1102
868	cf::override;	1103	cf::override;
869	},	1104	},
870	);	1105	);
871		1106
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 {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
907	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1112	next unless -r $path;
909	eval {	1113
910	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
911	1	1171	}
912	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
913	}	1177	};
914	}	1178	}
915		1179
916	#############################################################################	1180	#############################################################################
917		1181
		1182	=back
		1183
918	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
919		1185
920	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
921		1187
922	=cut	1188	=cut
…		…
934	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
935		1201
936	=cut	1202	=cut
937		1203
938	sub playerdir($) {	1204	sub playerdir($) {
939	cf::localdir	1205	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1207	}
945		1208
946	sub path($) {	1209	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1211
949	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
950	}	1213	}
951		1214
952	sub find_active($) {	1215	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
957		1220
958	sub exists($) {	1221	sub exists($) {
959	my ($login) = @_;	1222	my ($login) = @_;
960		1223
961	$cf::PLAYER{$login}	1224	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1225	or cf::sync_job { !aio_stat path $login }
963	}	1226	}
964		1227
965	sub find($) {	1228	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1229	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1230	my $login = $_[0];
968		1231
969	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
970		1233
971	$cf::PLAYER{$_[0]} || do {	1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
972	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
973	or return;	1243	or return;
974	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
975	}	1245	}
976	}	1246	}
…		…
1013		1283
1014	=cut	1284	=cut
1015		1285
1016	sub quit_character {	1286	sub quit_character {
1017	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1018		1290
1019	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
1021		1293
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1027	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
1032	IO::AIO::aio_rmtree $temp;	1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
1033	}	1325	}
1034		1326
1035	=item cf::player::list_logins	1327	=item cf::player::list_logins
1036		1328
1037	Returns am arrayref of all valid playernames in the system, can take a	1329	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1039		1331
1040	=cut	1332	=cut
1041		1333
1042	sub list_logins {	1334	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1336	or return [];
1045		1337
1046	my @logins;	1338	my @logins;
1047		1339
1048	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1065	=cut	1357	=cut
1066		1358
1067	sub maps($) {	1359	sub maps($) {
1068	my ($pl) = @_;	1360	my ($pl) = @_;
1069		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
1070	my $files = aio_readdir playerdir $pl	1364	my $files = aio_readdir playerdir $pl
1071	or return;	1365	or return;
1072		1366
1073	my @paths;	1367	my @paths;
1074		1368
1075	for (@$files) {	1369	for (@$files) {
1076	utf8::decode $_;	1370	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1371	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1372	next unless /^$PATH_SEP/o;
1079		1373
1080	s/\.map$//;	1374	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1375	}
1083		1376
1084	\@paths	1377	\@paths
1085	}	1378	}
1086		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	s/\s+\n/\n/g; # ws line-ends
		1418	s/\n\n+/\n/g; # double lines
		1419	s/^\n+//; # beginning lines
		1420	s/\n+$//; # ending lines
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1430	=item $player->ext_reply ($msgid, %msg)
1088		1431
1089	Sends an ext reply to the player.	1432	Sends an ext reply to the player.
1090		1433
1091	=cut	1434	=cut
1092		1435
1093	sub ext_reply($$$%) {	1436	sub ext_reply($$%) {
1094	my ($self, $id, %msg) = @_;	1437	my ($self, $id, %msg) = @_;
1095		1438
1096	$msg{msgid} = $id;	1439	$msg{msgid} = $id;
1097		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1441	}
1100		1442
1101	package cf;	1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
		1470	my ($path) = @_;
		1471
		1472	my ($match, $specificity);
		1473
		1474	for my $region (list) {
		1475	if ($region->match && $path =~ $region->match) {
		1476	($match, $specificity) = ($region, $region->specificity)
		1477	if $region->specificity > $specificity;
		1478	}
		1479	}
		1480
		1481	$match
		1482	}
1102		1483
1103	=back	1484	=back
1104
1105		1485
1106	=head3 cf::map	1486	=head3 cf::map
1107		1487
1108	=over 4	1488	=over 4
1109		1489
…		…
1113		1493
1114	use Fcntl;	1494	use Fcntl;
1115	use Coro::AIO;	1495	use Coro::AIO;
1116		1496
1117	use overload	1497	use overload
1118	'""' => \&as_string;	1498	'""' => \&as_string,
		1499	fallback => 1;
1119		1500
1120	our $MAX_RESET = 3600;	1501	our $MAX_RESET = 3600;
1121	our $DEFAULT_RESET = 3000;	1502	our $DEFAULT_RESET = 3000;
1122		1503
1123	sub generate_random_map {	1504	sub generate_random_map {
1124	my ($self, $rmp) = @_;	1505	my ($self, $rmp) = @_;
1125
1126	# mit "rum" bekleckern, nicht	1506	# mit "rum" bekleckern, nicht
1127	$self->_create_random_map (	1507	$self->_create_random_map (
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1508	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1509	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1510	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1517	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1518	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1519	)
1140	}	1520	}
1141		1521
		1522	=item cf::map->register ($regex, $prio)
		1523
		1524	Register a handler for the map path matching the given regex at the
		1525	givne priority (higher is better, built-in handlers have priority 0, the
		1526	default).
		1527
		1528	=cut
		1529
1142	sub register {	1530	sub register {
1143	my (undef, $regex) = @_;	1531	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1532	my $pkg = caller;
1145		1533
1146	no strict;	1534	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1535	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1536
1149	$EXT_MAP{$pkg} = qr<$regex>;	1537	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1538	}
1151		1539
1152	# also paths starting with '/'	1540	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1541	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1542
1155	sub thawer_merge {	1543	sub thawer_merge {
1156	my ($self, $merge) = @_;	1544	my ($self, $merge) = @_;
1157		1545
1158	# we have to keep some variables in memory intact	1546	# we have to keep some variables in memory intact
1159	local $self->{path};	1547	local $self->{path};
1160	local $self->{load_path};	1548	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1549
1164	$self->SUPER::thawer_merge ($merge);	1550	$self->SUPER::thawer_merge ($merge);
1165	}	1551	}
1166		1552
1167	sub normalise {	1553	sub normalise {
1168	my ($path, $base) = @_;	1554	my ($path, $base) = @_;
		1555
		1556	$path = "$path"; # make sure its a string
		1557
		1558	$path =~ s/\.map$//;
1169		1559
1170	# map plan:	1560	# map plan:
1171	#	1561	#
1172	# /! non-realised random map exit (special hack!)	1562	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1563	# {... are special paths that are not being touched
…		…
1201		1591
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1592	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1593
1204	$path = normalise $path, $base;	1594	$path = normalise $path, $base;
1205		1595
1206	for my $pkg (keys %EXT_MAP) {	1596	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1597	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1598	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1599	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1600	$self->init; # pass $1 etc.
1211	return $self;	1601	return $self;
1212	}	1602	}
1213	}	1603	}
1214		1604
1215	Carp::carp "unable to resolve path '$path'.";	1605	Carp::carp "unable to resolve path '$path' (base '$base').";
1216	()	1606	()
1217	}	1607	}
1218		1608
1219	sub init {	1609	sub init {
1220	my ($self) = @_;	1610	my ($self) = @_;
…		…
1235		1625
1236	# the original (read-only) location	1626	# the original (read-only) location
1237	sub load_path {	1627	sub load_path {
1238	my ($self) = @_;	1628	my ($self) = @_;
1239		1629
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1630	"$MAPDIR/$self->{path}.map"
1241	}	1631	}
1242		1632
1243	# the temporary/swap location	1633	# the temporary/swap location
1244	sub save_path {	1634	sub save_path {
1245	my ($self) = @_;	1635	my ($self) = @_;
1246		1636
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1638	"$TMPDIR/$path.map"
1249	}	1639	}
1250		1640
1251	# the unique path, undef == no special unique path	1641	# the unique path, undef == no special unique path
1252	sub uniq_path {	1642	sub uniq_path {
1253	my ($self) = @_;	1643	my ($self) = @_;
1254		1644
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1646	"$UNIQUEDIR/$path"
1257	}	1647	}
1258		1648
1259	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1260	# all maps in C++...	1650	# all maps in C++...
1261	sub change_all_map_light {	1651	sub change_all_map_light {
…		…
1263		1653
1264	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1265	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
1266	}	1656	}
1267		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
		1664	}
		1665
1268	sub unlink_save {	1666	sub unlink_save {
1269	my ($self) = @_;	1667	my ($self) = @_;
1270		1668
1271	utf8::encode (my $save = $self->save_path);	1669	utf8::encode (my $save = $self->save_path);
1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1670	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1275		1673
1276	sub load_header_from($) {	1674	sub load_header_from($) {
1277	my ($self, $path) = @_;	1675	my ($self, $path) = @_;
1278		1676
1279	utf8::encode $path;	1677	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1678	#aio_open $path, O_RDONLY, 0
1281	or return;	1679	# or return;
1282		1680
1283	$self->_load_header ($path)	1681	$self->_load_header ($path)
1284	or return;	1682	or return;
1285		1683
1286	$self->{load_path} = $path;	1684	$self->{load_path} = $path;
1287		1685
1288	1	1686	1
1289	}	1687	}
1290		1688
1291	sub load_orig {	1689	sub load_header_orig {
1292	my ($self) = @_;	1690	my ($self) = @_;
1293		1691
1294	$self->load_header_from ($self->load_path)	1692	$self->load_header_from ($self->load_path)
1295	}	1693	}
1296		1694
1297	sub load_temp {	1695	sub load_header_temp {
1298	my ($self) = @_;	1696	my ($self) = @_;
1299		1697
1300	$self->load_header_from ($self->save_path)	1698	$self->load_header_from ($self->save_path)
		1699	}
		1700
		1701	sub prepare_temp {
		1702	my ($self) = @_;
		1703
		1704	$self->last_access ((delete $self->{last_access})
		1705	|| $cf::RUNTIME); #d#
		1706	# safety
		1707	$self->{instantiate_time} = $cf::RUNTIME
		1708	if $self->{instantiate_time} > $cf::RUNTIME;
		1709	}
		1710
		1711	sub prepare_orig {
		1712	my ($self) = @_;
		1713
		1714	$self->{load_original} = 1;
		1715	$self->{instantiate_time} = $cf::RUNTIME;
		1716	$self->last_access ($cf::RUNTIME);
		1717	$self->instantiate;
1301	}	1718	}
1302		1719
1303	sub load_header {	1720	sub load_header {
1304	my ($self) = @_;	1721	my ($self) = @_;
1305		1722
1306	if ($self->load_temp) {	1723	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	1724	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	1725	} else {
1313	$self->load_orig	1726	$self->load_header_orig
1314	or return;	1727	or return;
1315		1728	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	1729	}
		1730
		1731	$self->{deny_reset} = 1
		1732	if $self->no_reset;
		1733
		1734	$self->default_region (cf::region::find_by_path $self->{path})
		1735	unless $self->default_region;
1321		1736
1322	1	1737	1
1323	}	1738	}
1324		1739
1325	sub find;	1740	sub find;
…		…
1338	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1339		1754
1340	$map->load_header	1755	$map->load_header
1341	or return;	1756	or return;
1342		1757
1343	if ($map->should_reset) {	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1759	# doing this can freeze the server in a sync job, obviously
1344	$cf::WAIT_FOR_TICK->wait;	1760	#$cf::WAIT_FOR_TICK->wait;
1345	$map->reset;	1761	$map->reset;
1346	undef $guard;	1762	undef $guard;
1347	$map = find $path	1763	return find $path;
1348	or return;
1349	}	1764	}
1350		1765
1351	$cf::MAP{$path} = $map	1766	$cf::MAP{$path} = $map
1352	}	1767	}
1353	}	1768	}
		1769
		1770	sub pre_load { }
		1771	sub post_load { }
1354		1772
1355	sub load {	1773	sub load {
1356	my ($self) = @_;	1774	my ($self) = @_;
1357		1775
		1776	local $self->{deny_reset} = 1; # loading can take a long time
		1777
1358	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1359	my $guard = cf::lock_acquire "map_load:$path";	1781	my $guard = cf::lock_acquire "map_load:$path";
1360		1782
1361	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1362		1784
1363	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1364		1786
1365	$self->alloc;	1787	$self->alloc;
1366	$self->_load_objects ($self->{load_path}, 1)
1367	or return;
1368		1788
1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1789	$self->pre_load;
1370	if delete $self->{load_original};
1371
1372	if (my $uniq = $self->uniq_path) {
1373	utf8::encode $uniq;
1374	if (aio_open $uniq, O_RDONLY, 0) {
1375	$self->clear_unique_items;
1376	$self->_load_objects ($uniq, 0);
1377	}
1378	}
1379
1380	Coro::cede;
1381
1382	# now do the right thing for maps
1383	$self->link_multipart_objects;
1384
1385	unless ($self->{deny_activate}) {
1386	$self->decay_objects;
1387	$self->fix_auto_apply;
1388	$self->update_buttons;
1389	Coro::cede;	1790	Coro::cede;
1390	$self->set_darkness_map;	1791
		1792	$self->_load_objects ($self->{load_path}, 1)
		1793	or return;
		1794
		1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1796	if delete $self->{load_original};
		1797
		1798	if (my $uniq = $self->uniq_path) {
		1799	utf8::encode $uniq;
		1800	if (aio_open $uniq, O_RDONLY, 0) {
		1801	$self->clear_unique_items;
		1802	$self->_load_objects ($uniq, 0);
		1803	}
		1804	}
		1805
		1806	Coro::cede;
		1807	# now do the right thing for maps
		1808	$self->link_multipart_objects;
1391	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1392	unless $self->difficulty;	1810	unless $self->difficulty;
1393	Coro::cede;	1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1394	$self->activate;	1820	$self->activate;
1395	}	1821	}
1396		1822
1397	$self->in_memory (cf::MAP_IN_MEMORY);	1823	$self->in_memory (cf::MAP_IN_MEMORY);
		1824	}
		1825
		1826	$self->post_load;
1398	}	1827	}
1399		1828
1400	sub customise_for {	1829	sub customise_for {
1401	my ($self, $ob) = @_;	1830	my ($self, $ob) = @_;
1402		1831
1403	return find "~" . $ob->name . "/" . $self->{path}	1832	return find "~" . $ob->name . "/" . $self->{path}
1404	if $self->per_player;	1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
1405		1837
1406	$self	1838	$self
1407	}	1839	}
1408		1840
1409	# find and load all maps in the 3x3 area around a map	1841	# find and load all maps in the 3x3 area around a map
…		…
1441		1873
1442	cf::sync_job { $map->load };	1874	cf::sync_job { $map->load };
1443	}	1875	}
1444		1876
1445	our %MAP_PREFETCH;	1877	our %MAP_PREFETCH;
1446	our $MAP_PREFETCHER = Coro::async {	1878	our $MAP_PREFETCHER = undef;
1447	while () {
1448	for my $path (keys %MAP_PREFETCH) {
1449	my $map = find $path
1450	or next;
1451	$map->load;
1452
1453	delete $MAP_PREFETCH{$path};
1454	}
1455	Coro::schedule;
1456	}
1457	};
1458		1879
1459	sub find_async {	1880	sub find_async {
1460	my ($path, $origin) = @_;	1881	my ($path, $origin) = @_;
1461		1882
1462	$path = normalise $path, $origin && $origin->{path};	1883	$path = normalise $path, $origin && $origin->{path};
1463		1884
1464	if (my $map = $cf::MAP{$path}) {	1885	if (my $map = $cf::MAP{$path}) {
1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1886	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466	}	1887	}
1467		1888
1468	$MAP_PREFETCH{$path} = 0;	1889	undef $MAP_PREFETCH{$path};
		1890	$MAP_PREFETCHER ||= cf::async {
		1891	while (%MAP_PREFETCH) {
		1892	for my $path (keys %MAP_PREFETCH) {
		1893	my $map = find $path
		1894	or next;
		1895	$map->load;
		1896
		1897	delete $MAP_PREFETCH{$path};
		1898	}
		1899	}
		1900	undef $MAP_PREFETCHER;
		1901	};
1469	$MAP_PREFETCHER->ready;	1902	$MAP_PREFETCHER->prio (6);
1470		1903
1471	()	1904	()
1472	}	1905	}
1473		1906
1474	sub save {	1907	sub save {
…		…
1519		1952
1520	sub reset_at {	1953	sub reset_at {
1521	my ($self) = @_;	1954	my ($self) = @_;
1522		1955
1523	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1524	return 1e99 if $self->isa ("ext::map_per_player");#d#
1525	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1526		1958
1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1529		1961
…		…
1534	my ($self) = @_;	1966	my ($self) = @_;
1535		1967
1536	$self->reset_at <= $cf::RUNTIME	1968	$self->reset_at <= $cf::RUNTIME
1537	}	1969	}
1538		1970
1539	sub rename {
1540	my ($self, $new_path) = @_;
1541
1542	normalise $new_path;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = $new_path; $self->path ($self->{path});
1548	$cf::MAP{$self->path} = $self;
1549
1550	$self->save;
1551	}
1552
1553	sub reset {	1971	sub reset {
1554	my ($self) = @_;	1972	my ($self) = @_;
1555		1973
1556	my $lock = cf::lock_acquire "map_data:$self->{path}";	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1557		1975
1558	return if $self->players;	1976	return if $self->players;
1559	return if $self->isa ("ext::map_per_player");#d#
1560		1977
1561	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
		1979
		1980	$self->in_memory (cf::MAP_SWAPPED);
		1981
		1982	# need to save uniques path
		1983	unless ($self->{deny_save}) {
		1984	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1985
		1986	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1987	if $uniq;
		1988	}
1562		1989
1563	delete $cf::MAP{$self->path};	1990	delete $cf::MAP{$self->path};
1564		1991
1565	$self->in_memory (cf::MAP_SWAPPED);
1566	$self->clear;	1992	$self->clear;
1567		1993
1568	$_->clear_links_to ($self) for values %cf::MAP;	1994	$_->clear_links_to ($self) for values %cf::MAP;
1569		1995
1570	$self->unlink_save;	1996	$self->unlink_save;
…		…
1574	my $nuke_counter = "aaaa";	2000	my $nuke_counter = "aaaa";
1575		2001
1576	sub nuke {	2002	sub nuke {
1577	my ($self) = @_;	2003	my ($self) = @_;
1578		2004
		2005	delete $cf::MAP{$self->path};
		2006
		2007	$self->unlink_save;
		2008
		2009	bless $self, "cf::map";
		2010	delete $self->{deny_reset};
1579	$self->{deny_save} = 1;	2011	$self->{deny_save} = 1;
1580	$self->reset_timeout (1);	2012	$self->reset_timeout (1);
1581	$self->rename ("{nuke}/" . ($nuke_counter++));	2013	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2014
		2015	$cf::MAP{$self->path} = $self;
		2016
1582	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
		2018	}
		2019
		2020	=item $maps = cf::map::tmp_maps
		2021
		2022	Returns an arrayref with all map paths of currently instantiated and saved
		2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
		2028	[
		2029	map {
		2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
		2036	}
		2037
		2038	=item $maps = cf::map::random_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
		2042
		2043	=cut
		2044
		2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
1583	}	2054	}
1584		2055
1585	=item cf::map::unique_maps	2056	=item cf::map::unique_maps
1586		2057
1587	Returns an arrayref of paths of all shared maps that have	2058	Returns an arrayref of paths of all shared maps that have
1588	instantiated unique items. May block.	2059	instantiated unique items. May block.
1589		2060
1590	=cut	2061	=cut
1591		2062
1592	sub unique_maps() {	2063	sub unique_maps() {
1593	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2064	[
1594	or return;	2065	map {
1595
1596	my @paths;
1597
1598	for (@$files) {
1599	utf8::decode $_;	2066	utf8::decode $_;
1600	next if /\.pst$/;
1601	next unless /^$PATH_SEP/o;
1602
1603	s/\.map$//;	2067	/\.map$/
1604	push @paths, $_;	2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $UNIQUEDIR or [] }
1605	}	2071	]
1606
1607	\@paths
1608	}	2072	}
1609		2073
1610	package cf;	2074	package cf;
1611		2075
1612	=back	2076	=back
…		…
1658		2122
1659	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1660		2124
1661	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1662	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1663	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1664	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1665	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1666	}	2144	}
1667	}	2145	}
1668		2146
1669	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1670		2148
…		…
1703	=cut	2181	=cut
1704		2182
1705	sub link_map {	2183	sub link_map {
1706	unless ($LINK_MAP) {	2184	unless ($LINK_MAP) {
1707	$LINK_MAP = cf::map::find "{link}"	2185	$LINK_MAP = cf::map::find "{link}"
1708	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2186	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1709	$LINK_MAP->load;	2187	$LINK_MAP->load;
1710	}	2188	}
1711		2189
1712	$LINK_MAP	2190	$LINK_MAP
1713	}	2191	}
…		…
1718	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1719		2197
1720	return if UNIVERSAL::isa $self->map, "ext::map_link";	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1721		2199
1722	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1723	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1724		2202
1725	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1726	}	2204	}
1727		2205
1728	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1729	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1730		2210
1731	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1732		2212
1733	unless ($map) {	2213	unless ($map) {
1734	# restore original map position	2214	# restore original map position
…		…
1752	$map->load;	2232	$map->load;
1753	$map->load_diag;	2233	$map->load_diag;
1754		2234
1755	return unless $self->contr->active;	2235	return unless $self->contr->active;
1756	$self->activate_recursive;	2236	$self->activate_recursive;
		2237
		2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1757	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1758	}	2240	}
1759		2241
1760	cf::player->attach (
1761	on_logout => sub {
1762	my ($pl) = @_;
1763
1764	# abort map switching before logout
1765	if ($pl->ob->{_link_pos}) {
1766	cf::sync_job {
1767	$pl->ob->leave_link
1768	};
1769	}
1770	},
1771	on_login => sub {
1772	my ($pl) = @_;
1773
1774	# try to abort aborted map switching on player login :)
1775	# should happen only on crashes
1776	if ($pl->ob->{_link_pos}) {
1777	$pl->ob->enter_link;
1778	(async {
1779	# we need this sleep as the login has a concurrent enter_exit running
1780	# and this sleep increases chances of the player not ending up in scorn
1781	$pl->ob->reply (undef,
1782	"There was an internal problem at your last logout, "
1783	. "the server will try to bring you to your intended destination in a second.",
1784	cf::NDI_RED);
1785	Coro::Timer::sleep 1;
1786	$pl->ob->leave_link;
1787	})->prio (2);
1788	}
1789	},
1790	);
1791
1792	=item $player_object->goto ($path, $x, $y)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1793		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1794	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1795		2252
1796	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1797	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1798		2258
1799	$self->enter_link;	2259	$self->enter_link;
1800		2260
1801	(async {	2261	(async {
		2262	my $map = eval {
1802	my $map = cf::map::find $path;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1803	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
1804		2267	$map = $check->($map) if $check && $map;
1805	# warn "entering ", $map->path, " at ($x, $y)\n"	2268	} else {
1806	# if $map;
1807
1808	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
1809		2271
		2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
		2278	}
		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1810	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1811	})->prio (1);	2284	})->prio (1);
1812	}	2285	}
1813		2286
1814	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1815		2288
…		…
1817		2290
1818	sub parse_random_map_params {	2291	sub parse_random_map_params {
1819	my ($spec) = @_;	2292	my ($spec) = @_;
1820		2293
1821	my $rmp = { # defaults	2294	my $rmp = { # defaults
1822	xsize => 10,	2295	xsize => (cf::rndm 15, 40),
1823	ysize => 10,	2296	ysize => (cf::rndm 15, 40),
		2297	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2298	#layout => string,
1824	};	2299	};
1825		2300
1826	for (split /\n/, $spec) {	2301	for (split /\n/, $spec) {
1827	my ($k, $v) = split /\s+/, $_, 2;	2302	my ($k, $v) = split /\s+/, $_, 2;
1828		2303
…		…
1832	$rmp	2307	$rmp
1833	}	2308	}
1834		2309
1835	sub prepare_random_map {	2310	sub prepare_random_map {
1836	my ($exit) = @_;	2311	my ($exit) = @_;
		2312
		2313	my $guard = cf::lock_acquire "exit_prepare:$exit";
1837		2314
1838	# all this does is basically replace the /! path by	2315	# all this does is basically replace the /! path by
1839	# a new random map path (?random/...) with a seed	2316	# a new random map path (?random/...) with a seed
1840	# that depends on the exit object	2317	# that depends on the exit object
1841		2318
1842	my $rmp = parse_random_map_params $exit->msg;	2319	my $rmp = parse_random_map_params $exit->msg;
1843		2320
1844	if ($exit->map) {	2321	if ($exit->map) {
1845	$rmp->{region} = $exit->map->region_name;	2322	$rmp->{region} = $exit->region->name;
1846	$rmp->{origin_map} = $exit->map->path;	2323	$rmp->{origin_map} = $exit->map->path;
1847	$rmp->{origin_x} = $exit->x;	2324	$rmp->{origin_x} = $exit->x;
1848	$rmp->{origin_y} = $exit->y;	2325	$rmp->{origin_y} = $exit->y;
1849	}	2326	}
1850		2327
1851	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1852		2329
1853	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1854	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
		2332	my $meta = "$RANDOMDIR/$md5.meta";
1855		2333
1856	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1857	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
		2336	undef $fh;
		2337	aio_rename "$meta~", $meta;
1858		2338
1859	$exit->slaying ("?random/$md5");	2339	$exit->slaying ("?random/$md5");
1860	$exit->msg (undef);	2340	$exit->msg (undef);
1861	}	2341	}
1862	}	2342	}
…		…
1864	sub cf::object::player::enter_exit {	2344	sub cf::object::player::enter_exit {
1865	my ($self, $exit) = @_;	2345	my ($self, $exit) = @_;
1866		2346
1867	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
1868		2348
		2349	if ($exit->slaying eq "/!") {
		2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
		2353	cf::sync_job { prepare_random_map $exit };
		2354	}
		2355
		2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2357	my $hp = $exit->stats->hp;
		2358	my $sp = $exit->stats->sp;
		2359
1869	$self->enter_link;	2360	$self->enter_link;
		2361
		2362	# if exit is damned, update players death & WoR home-position
		2363	$self->contr->savebed ($slaying, $hp, $sp)
		2364	if $exit->flag (FLAG_DAMNED);
1870		2365
1871	(async {	2366	(async {
1872	$self->deactivate_recursive; # just to be sure	2367	$self->deactivate_recursive; # just to be sure
1873	unless (eval {	2368	unless (eval {
1874	prepare_random_map $exit	2369	$self->goto ($slaying, $hp, $sp);
1875	if $exit->slaying eq "/!";
1876
1877	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1878	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1879		2370
1880	1;	2371	1;
1881	}) {	2372	}) {
1882	$self->message ("Something went wrong deep within the crossfire server. "	2373	$self->message ("Something went wrong deep within the crossfire server. "
1883	. "I'll try to bring you back to the map you were before. "	2374	. "I'll try to bring you back to the map you were before. "
1884	. "Please report this to the dungeon master!",	2375	. "Please report this to the dungeon master!",
1885	cf::NDI_UNIQUE | cf::NDI_RED);	2376	cf::NDI_UNIQUE | cf::NDI_RED);
1886		2377
1887	warn "ERROR in enter_exit: $@";	2378	warn "ERROR in enter_exit: $@";
1888	$self->leave_link;	2379	$self->leave_link;
1889	}	2380	}
1890	})->prio (1);	2381	})->prio (1);
…		…
1903		2394
1904	sub cf::client::send_drawinfo {	2395	sub cf::client::send_drawinfo {
1905	my ($self, $text, $flags) = @_;	2396	my ($self, $text, $flags) = @_;
1906		2397
1907	utf8::encode $text;	2398	utf8::encode $text;
1908	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2399	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1909	}	2400	}
1910		2401
		2402	=item $client->send_msg ($color, $type, $msg, [extra...])
		2403
		2404	Send a drawinfo or msg packet to the client, formatting the msg for the
		2405	client if neccessary. C<$type> should be a string identifying the type of
		2406	the message, with C<log> being the default. If C<$color> is negative, suppress
		2407	the message unless the client supports the msg packet.
		2408
		2409	=cut
		2410
		2411	sub cf::client::send_msg {
		2412	my ($self, $color, $type, $msg, @extra) = @_;
		2413
		2414	$msg = $self->pl->expand_cfpod ($msg);
		2415
		2416	return unless @extra || length $msg;
		2417
		2418	if ($self->can_msg) {
		2419	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2420	} else {
		2421	# replace some tags by gcfclient-compatible ones
		2422	for ($msg) {
		2423	1 while
		2424	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2425	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2426	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2427	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2428	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2429	}
		2430
		2431	if ($color >= 0) {
		2432	if (0 && $msg =~ /\[/) {
		2433	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2434	} else {
		2435	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2436	$self->send_packet ("drawinfo $color $msg")
		2437	}
		2438	}
		2439	}
		2440	}
		2441
		2442	=item $client->ext_event ($type, %msg)
		2443
		2444	Sends an ext event to the client.
		2445
		2446	=cut
		2447
		2448	sub cf::client::ext_event($$%) {
		2449	my ($self, $type, %msg) = @_;
		2450
		2451	$msg{msgtype} = "event_$type";
		2452	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2453	}
1911		2454
1912	=item $success = $client->query ($flags, "text", \&cb)	2455	=item $success = $client->query ($flags, "text", \&cb)
1913		2456
1914	Queues a query to the client, calling the given callback with	2457	Queues a query to the client, calling the given callback with
1915	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2458	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1916	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2459	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1917		2460
1918	Queries can fail, so check the return code. Or don't, as queries will become	2461	Queries can fail, so check the return code. Or don't, as queries will
1919	reliable at some point in the future.	2462	become reliable at some point in the future.
1920		2463
1921	=cut	2464	=cut
1922		2465
1923	sub cf::client::query {	2466	sub cf::client::query {
1924	my ($self, $flags, $text, $cb) = @_;	2467	my ($self, $flags, $text, $cb) = @_;
…		…
1932	utf8::encode $text;	2475	utf8::encode $text;
1933	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2476	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1934		2477
1935	$self->send_packet ($self->{query_queue}[0][0])	2478	$self->send_packet ($self->{query_queue}[0][0])
1936	if @{ $self->{query_queue} } == 1;	2479	if @{ $self->{query_queue} } == 1;
		2480
		2481	1
1937	}	2482	}
1938		2483
1939	cf::client->attach (	2484	cf::client->attach (
		2485	on_connect => sub {
		2486	my ($ns) = @_;
		2487
		2488	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2489	},
1940	on_reply => sub {	2490	on_reply => sub {
1941	my ($ns, $msg) = @_;	2491	my ($ns, $msg) = @_;
1942		2492
1943	# this weird shuffling is so that direct followup queries	2493	# this weird shuffling is so that direct followup queries
1944	# get handled first	2494	# get handled first
1945	my $queue = delete $ns->{query_queue}	2495	my $queue = delete $ns->{query_queue}
1946	or return; # be conservative, not sure how that can happen, but we saw a crash here	2496	or return; # be conservative, not sure how that can happen, but we saw a crash here
1947		2497
1948	(shift @$queue)->[1]->($msg);	2498	(shift @$queue)->[1]->($msg);
		2499	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1949		2500
1950	push @{ $ns->{query_queue} }, @$queue;	2501	push @{ $ns->{query_queue} }, @$queue;
1951		2502
1952	if (@{ $ns->{query_queue} } == @$queue) {	2503	if (@{ $ns->{query_queue} } == @$queue) {
1953	if (@$queue) {	2504	if (@$queue) {
…		…
1955	} else {	2506	} else {
1956	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2507	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1957	}	2508	}
1958	}	2509	}
1959	},	2510	},
		2511	on_exticmd => sub {
		2512	my ($ns, $buf) = @_;
		2513
		2514	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2515
		2516	if (ref $msg) {
		2517	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2518	if (my %reply = $cb->($ns, $msg)) {
		2519	$reply{msgid} = $msg->{msgid};
		2520	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2521	}
		2522	}
		2523	} else {
		2524	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2525	}
		2526
		2527	cf::override;
		2528	},
1960	);	2529	);
1961		2530
1962	=item $client->async (\&cb)	2531	=item $client->async (\&cb)
1963		2532
1964	Create a new coroutine, running the specified callback. The coroutine will	2533	Create a new coroutine, running the specified callback. The coroutine will
…		…
2011		2580
2012	# here we export the classes and methods available to script code	2581	# here we export the classes and methods available to script code
2013		2582
2014	=pod	2583	=pod
2015		2584
2016	The following fucntions and emthods are available within a safe environment:	2585	The following functions and methods are available within a safe environment:
2017		2586
2018	cf::object contr pay_amount pay_player map	2587	cf::object contr pay_amount pay_player map
2019	cf::object::player player	2588	cf::object::player player
2020	cf::player peaceful	2589	cf::player peaceful
2021	cf::map trigger	2590	cf::map trigger
…		…
2102	=back	2671	=back
2103		2672
2104	=cut	2673	=cut
2105		2674
2106	#############################################################################	2675	#############################################################################
		2676	# the server's init and main functions
2107		2677
2108	=head2 EXTENSION DATABASE SUPPORT	2678	sub load_facedata($) {
		2679	my ($path) = @_;
2109		2680
2110	Crossfire maintains a very simple database for extension use. It can	2681	warn "loading facedata from $path\n";
2111	currently store anything that can be serialised using Storable, which
2112	excludes objects.
2113		2682
2114	The parameter C<$family> should best start with the name of the extension	2683	my $facedata;
2115	using it, it should be unique.	2684	0 < aio_load $path, $facedata
		2685	or die "$path: $!";
2116		2686
2117	=over 4	2687	$facedata = Coro::Storable::thaw $facedata;
2118		2688
2119	=item $hashref = cf::db_get $family	2689	$facedata->{version} == 2
		2690	or cf::cleanup "$path: version mismatch, cannot proceed.";
2120		2691
2121	Return a hashref for use by the extension C<$family>, which can be
2122	modified. After modifications, you have to call C<cf::db_dirty> or
2123	C<cf::db_sync>.
2124
2125	=item $value = cf::db_get $family => $key
2126
2127	Returns a single value from the database
2128
2129	=item cf::db_put $family => $hashref
2130
2131	Stores the given family hashref into the database. Updates are delayed, if
2132	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2133
2134	=item cf::db_put $family => $key => $value
2135
2136	Stores the given C<$value> in the family hash. Updates are delayed, if you
2137	want the data to be synced to disk immediately, use C<cf::db_sync>.
2138
2139	=item cf::db_dirty
2140
2141	Marks the database as dirty, to be updated at a later time.
2142
2143	=item cf::db_sync
2144
2145	Immediately write the database to disk I<if it is dirty>.
2146
2147	=cut
2148
2149	our $DB;
2150
2151	{
2152	my $path = cf::localdir . "/database.pst";
2153
2154	sub db_load() {
2155	$DB = stat $path ? Storable::retrieve $path : { };
2156	}	2692	{
		2693	my $faces = $facedata->{faceinfo};
2157		2694
2158	my $pid;	2695	while (my ($face, $info) = each %$faces) {
2159		2696	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2160	sub db_save() {	2697	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2161	waitpid $pid, 0 if $pid;	2698	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2162	if (0 == ($pid = fork)) {	2699	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2163	$DB->{_meta}{version} = 1;	2700	Coro::cede;
2164	Storable::nstore $DB, "$path~";
2165	rename "$path~", $path;
2166	cf::_exit 0 if defined $pid;
2167	}
2168	}
2169
2170	my $dirty;
2171
2172	sub db_sync() {
2173	db_save if $dirty;
2174	undef $dirty;
2175	}
2176
2177	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2178	db_sync;
2179	});
2180
2181	sub db_dirty() {
2182	$dirty = 1;
2183	$idle->start;
2184	}
2185
2186	sub db_get($;$) {
2187	@_ >= 2
2188	? $DB->{$_[0]}{$_[1]}
2189	: ($DB->{$_[0]} ||= { })
2190	}
2191
2192	sub db_put($$;$) {
2193	if (@_ >= 3) {
2194	$DB->{$_[0]}{$_[1]} = $_[2];
2195	} else {
2196	$DB->{$_[0]} = $_[1];
2197	}
2198	db_dirty;
2199	}
2200
2201	cf::global->attach (
2202	prio => 10000,
2203	on_cleanup => sub {
2204	db_sync;
2205	},	2701	}
2206	);
2207	}
2208		2702
2209	#############################################################################	2703	while (my ($face, $info) = each %$faces) {
2210	# the server's main()	2704	next unless $info->{smooth};
		2705	my $idx = cf::face::find $face
		2706	or next;
		2707	if (my $smooth = cf::face::find $info->{smooth}) {
		2708	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2709	} else {
		2710	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2711	}
		2712	Coro::cede;
		2713	}
		2714	}
		2715
		2716	{
		2717	my $anims = $facedata->{animinfo};
		2718
		2719	while (my ($anim, $info) = each %$anims) {
		2720	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2721	Coro::cede;
		2722	}
		2723
		2724	cf::anim::invalidate_all; # d'oh
		2725	}
		2726
		2727	1
		2728	}
		2729
		2730	sub reload_regions {
		2731	load_resource_file "$MAPDIR/regions"
		2732	or die "unable to load regions file\n";
		2733	}
		2734
		2735	sub reload_facedata {
		2736	load_facedata "$DATADIR/facedata"
		2737	or die "unable to load facedata\n";
		2738	}
		2739
		2740	sub reload_archetypes {
		2741	load_resource_file "$DATADIR/archetypes"
		2742	or die "unable to load archetypes\n";
		2743	#d# NEED to laod twice to resolve forward references
		2744	# this really needs to be done in an extra post-pass
		2745	# (which needs to be synchronous, so solve it differently)
		2746	load_resource_file "$DATADIR/archetypes"
		2747	or die "unable to load archetypes\n";
		2748	}
		2749
		2750	sub reload_treasures {
		2751	load_resource_file "$DATADIR/treasures"
		2752	or die "unable to load treasurelists\n";
		2753	}
		2754
		2755	sub reload_resources {
		2756	warn "reloading resource files...\n";
		2757
		2758	reload_regions;
		2759	reload_facedata;
		2760	#reload_archetypes;#d#
		2761	reload_archetypes;
		2762	reload_treasures;
		2763
		2764	warn "finished reloading resource files\n";
		2765	}
		2766
		2767	sub init {
		2768	reload_resources;
		2769	}
2211		2770
2212	sub cfg_load {	2771	sub cfg_load {
2213	open my $fh, "<:utf8", cf::confdir . "/config"	2772	open my $fh, "<:utf8", "$CONFDIR/config"
2214	or return;	2773	or return;
2215		2774
2216	local $/;	2775	local $/;
2217	*CFG = YAML::Syck::Load <$fh>;	2776	*CFG = YAML::Syck::Load <$fh>;
2218		2777
…		…
2232		2791
2233	sub main {	2792	sub main {
2234	# we must not ever block the main coroutine	2793	# we must not ever block the main coroutine
2235	local $Coro::idle = sub {	2794	local $Coro::idle = sub {
2236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2795	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2796	(async {
2237	async { Event::one_event };	2797	Event::one_event;
		2798	})->prio (Coro::PRIO_MAX);
2238	};	2799	};
2239		2800
2240	cfg_load;	2801	cfg_load;
2241	db_load;	2802	db_init;
2242	load_extensions;	2803	load_extensions;
		2804
		2805	$TICK_WATCHER->start;
2243	Event::loop;	2806	Event::loop;
2244	}	2807	}
2245		2808
2246	#############################################################################	2809	#############################################################################
2247	# initialisation and cleanup	2810	# initialisation and cleanup
2248		2811
2249	# install some emergency cleanup handlers	2812	# install some emergency cleanup handlers
2250	BEGIN {	2813	BEGIN {
2251	for my $signal (qw(INT HUP TERM)) {	2814	for my $signal (qw(INT HUP TERM)) {
2252	Event->signal (	2815	Event->signal (
		2816	reentrant => 0,
2253	data => WF_AUTOCANCEL,	2817	data => WF_AUTOCANCEL,
2254	signal => $signal,	2818	signal => $signal,
		2819	prio => 0,
2255	cb => sub {	2820	cb => sub {
2256	cf::cleanup "SIG$signal";	2821	cf::cleanup "SIG$signal";
2257	},	2822	},
2258	);	2823	);
2259	}	2824	}
		2825	}
		2826
		2827	sub write_runtime {
		2828	my $runtime = "$LOCALDIR/runtime";
		2829
		2830	# first touch the runtime file to show we are still running:
		2831	# the fsync below can take a very very long time.
		2832
		2833	IO::AIO::aio_utime $runtime, undef, undef;
		2834
		2835	my $guard = cf::lock_acquire "write_runtime";
		2836
		2837	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2838	or return;
		2839
		2840	my $value = $cf::RUNTIME + 90 + 10;
		2841	# 10 is the runtime save interval, for a monotonic clock
		2842	# 60 allows for the watchdog to kill the server.
		2843
		2844	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2845	and return;
		2846
		2847	# always fsync - this file is important
		2848	aio_fsync $fh
		2849	and return;
		2850
		2851	# touch it again to show we are up-to-date
		2852	aio_utime $fh, undef, undef;
		2853
		2854	close $fh
		2855	or return;
		2856
		2857	aio_rename "$runtime~", $runtime
		2858	and return;
		2859
		2860	warn "runtime file written.\n";
		2861
		2862	1
2260	}	2863	}
2261		2864
2262	sub emergency_save() {	2865	sub emergency_save() {
2263	my $freeze_guard = cf::freeze_mainloop;	2866	my $freeze_guard = cf::freeze_mainloop;
2264		2867
…		…
2281	my $map = $cf::MAP{$path} or next;	2884	my $map = $cf::MAP{$path} or next;
2282	$map->valid or next;	2885	$map->valid or next;
2283	$map->save;	2886	$map->save;
2284	}	2887	}
2285	warn "end emergency map save\n";	2888	warn "end emergency map save\n";
		2889
		2890	warn "begin emergency database checkpoint\n";
		2891	BDB::db_env_txn_checkpoint $DB_ENV;
		2892	warn "end emergency database checkpoint\n";
2286	};	2893	};
2287		2894
2288	warn "leave emergency perl save\n";	2895	warn "leave emergency perl save\n";
2289	}	2896	}
2290		2897
		2898	sub post_cleanup {
		2899	my ($make_core) = @_;
		2900
		2901	warn Carp::longmess "post_cleanup backtrace"
		2902	if $make_core;
		2903	}
		2904
2291	sub reload() {	2905	sub do_reload_perl() {
2292	# can/must only be called in main	2906	# can/must only be called in main
2293	if ($Coro::current != $Coro::main) {	2907	if ($Coro::current != $Coro::main) {
2294	warn "can only reload from main coroutine\n";	2908	warn "can only reload from main coroutine";
2295	return;	2909	return;
2296	}	2910	}
2297		2911
2298	warn "reloading...";	2912	warn "reloading...";
2299		2913
2300	warn "freezing server";	2914	warn "entering sync_job";
2301	my $guard = freeze_mainloop;	2915
		2916	cf::sync_job {
		2917	cf::write_runtime; # external watchdog should not bark
2302	cf::emergency_save;	2918	cf::emergency_save;
		2919	cf::write_runtime; # external watchdog should not bark
2303		2920
2304	warn "sync database to disk";	2921	warn "syncing database to disk";
2305	cf::db_sync;	2922	BDB::db_env_txn_checkpoint $DB_ENV;
2306	IO::AIO::flush;
2307		2923
2308	eval {
2309	# if anything goes wrong in here, we should simply crash as we already saved	2924	# if anything goes wrong in here, we should simply crash as we already saved
2310		2925
2311	warn "cancel all watchers";	2926	warn "cancelling all WF_AUTOCANCEL watchers";
2312	for (Event::all_watchers) {	2927	for (Event::all_watchers) {
2313	$_->cancel if $_->data & WF_AUTOCANCEL;	2928	$_->cancel if $_->data & WF_AUTOCANCEL;
2314	}	2929	}
2315		2930
		2931	warn "flushing outstanding aio requests";
		2932	for (;;) {
		2933	BDB::flush;
		2934	IO::AIO::flush;
		2935	Coro::cede;
		2936	last unless IO::AIO::nreqs || BDB::nreqs;
		2937	warn "iterate...";
		2938	}
		2939
		2940	++$RELOAD;
		2941
2316	warn "cancel all extension coros";	2942	warn "cancelling all extension coros";
2317	$_->cancel for values %EXT_CORO;	2943	$_->cancel for values %EXT_CORO;
2318	%EXT_CORO = ();	2944	%EXT_CORO = ();
2319		2945
2320	warn "remove commands";	2946	warn "removing commands";
2321	%COMMAND = ();	2947	%COMMAND = ();
2322		2948
2323	warn "remove ext commands";	2949	warn "removing ext/exti commands";
2324	%EXTCMD = ();	2950	%EXTCMD = ();
		2951	%EXTICMD = ();
2325		2952
2326	warn "unload/nuke all extensions";	2953	warn "unloading/nuking all extensions";
2327	for my $pkg (@EXTS) {	2954	for my $pkg (@EXTS) {
2328	warn "... unloading $pkg";	2955	warn "... unloading $pkg";
2329		2956
2330	if (my $cb = $pkg->can ("unload")) {	2957	if (my $cb = $pkg->can ("unload")) {
2331	eval {	2958	eval {
…		…
2336		2963
2337	warn "... nuking $pkg";	2964	warn "... nuking $pkg";
2338	Symbol::delete_package $pkg;	2965	Symbol::delete_package $pkg;
2339	}	2966	}
2340		2967
2341	warn "unload all perl modules loaded from $LIBDIR";	2968	warn "unloading all perl modules loaded from $LIBDIR";
2342	while (my ($k, $v) = each %INC) {	2969	while (my ($k, $v) = each %INC) {
2343	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2970	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2344		2971
2345	warn "removing <$k>";	2972	warn "... unloading $k";
2346	delete $INC{$k};	2973	delete $INC{$k};
2347		2974
2348	$k =~ s/\.pm$//;	2975	$k =~ s/\.pm$//;
2349	$k =~ s/\//::/g;	2976	$k =~ s/\//::/g;
2350		2977
…		…
2353	}	2980	}
2354		2981
2355	Symbol::delete_package $k;	2982	Symbol::delete_package $k;
2356	}	2983	}
2357		2984
2358	warn "get rid of safe::, as good as possible";	2985	warn "getting rid of safe::, as good as possible";
2359	Symbol::delete_package "safe::$_"	2986	Symbol::delete_package "safe::$_"
2360	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2987	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2361		2988
2362	warn "unload cf.pm \"a bit\"";	2989	warn "unloading cf.pm \"a bit\"";
2363	delete $INC{"cf.pm"};	2990	delete $INC{"cf.pm"};
		2991	delete $INC{"cf/pod.pm"};
2364		2992
2365	# don't, removes xs symbols, too,	2993	# don't, removes xs symbols, too,
2366	# and global variables created in xs	2994	# and global variables created in xs
2367	#Symbol::delete_package __PACKAGE__;	2995	#Symbol::delete_package __PACKAGE__;
2368		2996
		2997	warn "unload completed, starting to reload now";
		2998
2369	warn "reloading cf.pm";	2999	warn "reloading cf.pm";
2370	require cf;	3000	require cf;
2371	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3001	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2372		3002
2373	warn "load config and database again";	3003	warn "loading config and database again";
2374	cf::cfg_load;	3004	cf::cfg_load;
2375	cf::db_load;
2376		3005
2377	warn "load extensions";	3006	warn "loading extensions";
2378	cf::load_extensions;	3007	cf::load_extensions;
2379		3008
2380	warn "reattach attachments to objects/players";	3009	warn "reattaching attachments to objects/players";
2381	_global_reattach;	3010	_global_reattach; # objects, sockets
2382	warn "reattach attachments to maps";	3011	warn "reattaching attachments to maps";
2383	reattach $_ for values %MAP;	3012	reattach $_ for values %MAP;
2384	};	3013	warn "reattaching attachments to players";
		3014	reattach $_ for values %PLAYER;
2385		3015
2386	if ($@) {	3016	warn "leaving sync_job";
		3017
		3018	1
		3019	} or do {
2387	warn $@;	3020	warn $@;
2388	warn "error while reloading, exiting.";	3021	warn "error while reloading, exiting.";
2389	exit 1;	3022	exit 1;
2390	}	3023	};
2391		3024
2392	warn "reloaded";	3025	warn "reloaded";
2393	};	3026	};
2394		3027
		3028	our $RELOAD_WATCHER; # used only during reload
		3029
		3030	sub reload_perl() {
		3031	# doing reload synchronously and two reloads happen back-to-back,
		3032	# coro crashes during coro_state_free->destroy here.
		3033
		3034	$RELOAD_WATCHER ||= Event->timer (
		3035	reentrant => 0,
		3036	after => 0,
		3037	data => WF_AUTOCANCEL,
		3038	cb => sub {
		3039	do_reload_perl;
		3040	undef $RELOAD_WATCHER;
		3041	},
		3042	);
		3043	}
		3044
2395	register_command "reload" => sub {	3045	register_command "reload" => sub {
2396	my ($who, $arg) = @_;	3046	my ($who, $arg) = @_;
2397		3047
2398	if ($who->flag (FLAG_WIZ)) {	3048	if ($who->flag (FLAG_WIZ)) {
2399	$who->message ("start of reload.");
2400	reload;
2401	$who->message ("end of reload.");	3049	$who->message ("reloading server.");
		3050	async { reload_perl };
2402	}	3051	}
2403	};	3052	};
2404		3053
2405	unshift @INC, $LIBDIR;	3054	unshift @INC, $LIBDIR;
2406		3055
		3056	my $bug_warning = 0;
		3057
		3058	our @WAIT_FOR_TICK;
		3059	our @WAIT_FOR_TICK_BEGIN;
		3060
		3061	sub wait_for_tick {
		3062	return unless $TICK_WATCHER->is_active;
		3063	return if $Coro::current == $Coro::main;
		3064
		3065	my $signal = new Coro::Signal;
		3066	push @WAIT_FOR_TICK, $signal;
		3067	$signal->wait;
		3068	}
		3069
		3070	sub wait_for_tick_begin {
		3071	return unless $TICK_WATCHER->is_active;
		3072	return if $Coro::current == $Coro::main;
		3073
		3074	my $signal = new Coro::Signal;
		3075	push @WAIT_FOR_TICK_BEGIN, $signal;
		3076	$signal->wait;
		3077	}
		3078
		3079	my $min = 1e6;#d#
		3080	my $avg = 10;
2407	$TICK_WATCHER = Event->timer (	3081	$TICK_WATCHER = Event->timer (
2408	reentrant => 0,	3082	reentrant => 0,
		3083	parked => 1,
2409	prio => 0,	3084	prio => 0,
2410	at => $NEXT_TICK || $TICK,	3085	at => $NEXT_TICK || $TICK,
2411	data => WF_AUTOCANCEL,	3086	data => WF_AUTOCANCEL,
2412	cb => sub {	3087	cb => sub {
		3088	if ($Coro::current != $Coro::main) {
		3089	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3090	unless ++$bug_warning > 10;
		3091	return;
		3092	}
		3093
2413	$NOW = Event::time;	3094	$NOW = $tick_start = Event::time;
2414		3095
2415	cf::server_tick; # one server iteration	3096	cf::server_tick; # one server iteration
		3097
		3098	0 && sync_job {#d#
		3099	for(1..10) {
		3100	my $t = Event::time;
		3101	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3102	or die;
		3103
		3104	$map->width (50);
		3105	$map->height (50);
		3106	$map->alloc;
		3107	$map->_load_objects ("/tmp/x.map", 1);
		3108	my $t = Event::time - $t;
		3109
		3110	#next unless $t < 0.0013;#d#
		3111	if ($t < $min) {
		3112	$min = $t;
		3113	}
		3114	$avg = $avg * 0.99 + $t * 0.01;
		3115	}
		3116	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3117	exit 0;
		3118	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3119	};
		3120
2416	$RUNTIME += $TICK;	3121	$RUNTIME += $TICK;
2417	$NEXT_TICK += $TICK;	3122	$NEXT_TICK += $TICK;
2418		3123
2419	$WAIT_FOR_TICK->broadcast;	3124	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2420	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3125	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3126	Coro::async_pool {
		3127	write_runtime
		3128	or warn "ERROR: unable to write runtime file: $!";
		3129	};
		3130	}
		3131
		3132	# my $AFTER = Event::time;
		3133	# warn $AFTER - $NOW;#d#
		3134
		3135	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3136	$sig->send;
		3137	}
		3138	while (my $sig = shift @WAIT_FOR_TICK) {
		3139	$sig->send;
		3140	}
		3141
		3142	$NOW = Event::time;
2421		3143
2422	# if we are delayed by four ticks or more, skip them all	3144	# if we are delayed by four ticks or more, skip them all
2423	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3145	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2424		3146
2425	$TICK_WATCHER->at ($NEXT_TICK);	3147	$TICK_WATCHER->at ($NEXT_TICK);
2426	$TICK_WATCHER->start;	3148	$TICK_WATCHER->start;
		3149
		3150	$LOAD = ($NOW - $tick_start) / $TICK;
		3151	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3152
		3153	_post_tick;
		3154
		3155
2427	},	3156	},
2428	);	3157	);
2429		3158
		3159	{
		3160	BDB::max_poll_time $TICK * 0.1;
		3161	$BDB_POLL_WATCHER = Event->io (
		3162	reentrant => 0,
		3163	fd => BDB::poll_fileno,
		3164	poll => 'r',
		3165	prio => 0,
		3166	data => WF_AUTOCANCEL,
		3167	cb => \&BDB::poll_cb,
		3168	);
		3169	BDB::min_parallel 8;
		3170
		3171	BDB::set_sync_prepare {
		3172	my $status;
		3173	my $current = $Coro::current;
		3174	(
		3175	sub {
		3176	$status = $!;
		3177	$current->ready; undef $current;
		3178	},
		3179	sub {
		3180	Coro::schedule while defined $current;
		3181	$! = $status;
		3182	},
		3183	)
		3184	};
		3185
		3186	unless ($DB_ENV) {
		3187	$DB_ENV = BDB::db_env_create;
		3188
		3189	cf::sync_job {
		3190	eval {
		3191	BDB::db_env_open
		3192	$DB_ENV,
		3193	$BDBDIR,
		3194	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3195	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3196	0666;
		3197
		3198	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3199
		3200	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3201	$DB_ENV->set_lk_detect;
		3202	};
		3203
		3204	cf::cleanup "db_env_open(db): $@" if $@;
		3205	};
		3206	}
		3207	}
		3208
		3209	{
		3210	IO::AIO::min_parallel 8;
		3211
		3212	undef $Coro::AIO::WATCHER;
2430	IO::AIO::max_poll_time $TICK * 0.2;	3213	IO::AIO::max_poll_time $TICK * 0.1;
2431
2432	$AIO_POLL_WATCHER = Event->io (	3214	$AIO_POLL_WATCHER = Event->io (
2433	fd => IO::AIO::poll_fileno,	3215	reentrant => 0,
2434	poll => 'r',
2435	prio => 5,
2436	data => WF_AUTOCANCEL,
2437	cb => \&IO::AIO::poll_cb,
2438	);
2439
2440	$WRITE_RUNTIME_WATCHER = Event->timer (
2441	data => WF_AUTOCANCEL,	3216	data => WF_AUTOCANCEL,
2442	after => 0,	3217	fd => IO::AIO::poll_fileno,
2443	interval => 10,	3218	poll => 'r',
2444	cb => sub {	3219	prio => 6,
2445	(Coro::unblock_sub {	3220	cb => \&IO::AIO::poll_cb,
2446	write_runtime	3221	);
2447	or warn "ERROR: unable to write runtime file: $!";	3222	}
		3223
		3224	my $_log_backtrace;
		3225
		3226	sub _log_backtrace {
		3227	my ($msg, @addr) = @_;
		3228
		3229	$msg =~ s/\n//;
		3230
		3231	# limit the # of concurrent backtraces
		3232	if ($_log_backtrace < 2) {
		3233	++$_log_backtrace;
		3234	async {
		3235	my @bt = fork_call {
		3236	@addr = map { sprintf "%x", $_ } @addr;
		3237	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3238	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3239	or die "addr2line: $!";
		3240
		3241	my @funcs;
		3242	my @res = <$fh>;
		3243	chomp for @res;
		3244	while (@res) {
		3245	my ($func, $line) = splice @res, 0, 2, ();
		3246	push @funcs, "[$func] $line";
		3247	}
		3248
		3249	@funcs
		3250	};
		3251
		3252	LOG llevInfo, "[ABT] $msg\n";
		3253	LOG llevInfo, "[ABT] $_\n" for @bt;
		3254	--$_log_backtrace;
2448	})->();	3255	};
		3256	} else {
		3257	LOG llevInfo, "[ABT] $msg\n";
		3258	LOG llevInfo, "[ABT] [suppressed]\n";
2449	},	3259	}
2450	);	3260	}
		3261
		3262	# load additional modules
		3263	use cf::pod;
2451		3264
2452	END { cf::emergency_save }	3265	END { cf::emergency_save }
2453		3266
2454	1	3267	1
2455		3268

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