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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.291 by root, Tue Jul 3 00:54:44 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
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	710	our @CB_MAP = ();
505		711
506	my %attachment;	712	my %attachment;
507		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
508	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
510		722
511	use sort 'stable';	723	use sort 'stable';
512		724
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
547		759
548	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		764
553	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	766	my $pkg = shift @arg;
555		767
556	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
585	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
586	}	798	}
587		799
588	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
589	} else {	801	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
591	}	803	}
592		804
593	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
594	}	806	}
595		807
…		…
597	if (ref $_[0]) {	809	if (ref $_[0]) {
598	_object_attach @_;	810	_object_attach @_;
599	} else {	811	} else {
600	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
601	}	813	}
		814	_recalc_want;
602	};	815	};
603		816
604	# all those should be optimised	817	# all those should be optimised
605	sub cf::attachable::detach {	818	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
610	reattach ($obj);	823	reattach ($obj);
611	} else {	824	} else {
612	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
613	}	826	}
		827	_recalc_want;
614	};	828	};
615		829
616	sub cf::attachable::attached {	830	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
618		832
…		…
741	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
742		956
743	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
745	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
746	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
747	close $fh;	961	close $fh;
748		962
749	if (@$objs) {	963	if (@$objs) {
750	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) {
751	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
752	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
753	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
754	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
755	close $fh;	969	close $fh;
756	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
757	}	971	}
758	} else {	972	} else {
759	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
791	or return;	1005	or return;
792	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
793	}	1007	}
794		1008
795	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
796	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
797	return ($data, $av);	1011	return ($data, $av);
798	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
799		1019
800	#############################################################################	1020	#############################################################################
801	# command handling &c	1021	# command handling &c
802		1022
803	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
816	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
817	}	1037	}
818		1038
819	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
820		1040
821	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.
822		1046
823	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
824	called.	1048	called.
825		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
826	=cut	1061	=cut
827		1062
828	sub register_extcmd {	1063	sub register_extcmd {
829	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
830		1065
831	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
832	}	1073	}
833		1074
834	cf::player->attach (	1075	cf::player->attach (
835	on_command => sub {	1076	on_command => sub {
836	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
845	cf::override;	1086	cf::override;
846	},	1087	},
847	on_extcmd => sub {	1088	on_extcmd => sub {
848	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
849		1090
850	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
851		1092
852	if (ref $msg) {	1093	if (ref $msg) {
853	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
854	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
855	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
861		1102
862	cf::override;	1103	cf::override;
863	},	1104	},
864	);	1105	);
865		1106
866	sub load_extension {
867	my ($path) = @_;
868
869	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
870	my $base = $1;
871	my $pkg = $1;
872	$pkg =~ s/[^[:word:]]/_/g;
873	$pkg = "ext::$pkg";
874
875	warn "... loading '$path' into '$pkg'\n";
876
877	open my $fh, "<:utf8", $path
878	or die "$path: $!";
879
880	my $source =
881	"package $pkg; use strict; use utf8;\n"
882	. "#line 1 \"$path\"\n{\n"
883	. (do { local $/; <$fh> })
884	. "\n};\n1";
885
886	unless (eval $source) {
887	my $msg = $@ ? "$path: $@\n"
888	: "extension disabled.\n";
889	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
890	warn $@;
891	warn "mandatory extension failed to load, exiting.\n";
892	exit 1;
893	}
894	die $@;
895	}
896
897	push @EXTS, $pkg;
898	}
899
900	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
901	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
902	next unless -r $ext;	1112	next unless -r $path;
903	eval {	1113
904	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;
905	1	1171	}
906	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
907	}	1177	};
908	}	1178	}
909		1179
910	#############################################################################	1180	#############################################################################
911		1181
		1182	=back
		1183
912	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
913		1185
914	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
915		1187
916	=cut	1188	=cut
…		…
928	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
929		1201
930	=cut	1202	=cut
931		1203
932	sub playerdir($) {	1204	sub playerdir($) {
933	cf::localdir	1205	"$PLAYERDIR/"
934	. "/"
935	. cf::playerdir
936	. "/"
937	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
938	}	1207	}
939		1208
940	sub path($) {	1209	sub path($) {
941	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
942		1211
943	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
944	}	1213	}
945		1214
946	sub find_active($) {	1215	sub find_active($) {
947	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
948	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
951		1220
952	sub exists($) {	1221	sub exists($) {
953	my ($login) = @_;	1222	my ($login) = @_;
954		1223
955	$cf::PLAYER{$login}	1224	$cf::PLAYER{$login}
956	or cf::sync_job { !aio_stat $login }	1225	or cf::sync_job { !aio_stat path $login }
957	}	1226	}
958		1227
959	sub find($) {	1228	sub find($) {
960	return $cf::PLAYER{$_[0]} || do {	1229	return $cf::PLAYER{$_[0]} || do {
961	my $login = $_[0];	1230	my $login = $_[0];
962		1231
963	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
964		1233
965	$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
966	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
967	or return;	1243	or return;
968	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
969	}	1245	}
970	}	1246	}
…		…
1007		1283
1008	=cut	1284	=cut
1009		1285
1010	sub quit_character {	1286	sub quit_character {
1011	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1012		1290
1013	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1014	$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
1015		1293
1016	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1021	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1022	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1023	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1024	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1025	$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
1026	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;
1027	}	1325	}
1028		1326
1029	=item cf::player::list_logins	1327	=item cf::player::list_logins
1030		1328
1031	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
1032	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1033		1331
1034	=cut	1332	=cut
1035		1333
1036	sub list_logins {	1334	sub list_logins {
1037	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1038	or return [];	1336	or return [];
1039		1337
1040	my @logins;	1338	my @logins;
1041		1339
1042	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1059	=cut	1357	=cut
1060		1358
1061	sub maps($) {	1359	sub maps($) {
1062	my ($pl) = @_;	1360	my ($pl) = @_;
1063		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
1064	my $files = aio_readdir playerdir $pl	1364	my $files = aio_readdir playerdir $pl
1065	or return;	1365	or return;
1066		1366
1067	my @paths;	1367	my @paths;
1068		1368
1069	for (@$files) {	1369	for (@$files) {
1070	utf8::decode $_;	1370	utf8::decode $_;
1071	next if /\.(?:pl|pst)$/;	1371	next if /\.(?:pl|pst)$/;
1072	next unless /^$PATH_SEP/o;	1372	next unless /^$PATH_SEP/o;
1073		1373
1074	s/\.map$//;	1374	push @paths, cf::map::normalise "~$pl/$_";
1075	push @paths, "~" . $pl->ob->name . "/" . $_;
1076	}	1375	}
1077		1376
1078	\@paths	1377	\@paths
1079	}	1378	}
1080		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	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	warn "hm<$_[0] $_[1]>\n";#d#
		1424	$_[0]{hintmode} = $_[1] if @_ > 1;
		1425	$_[0]{hintmode}
		1426	}
		1427
1081	=item $player->ext_reply ($msgid, $msgtype, %msg)	1428	=item $player->ext_reply ($msgid, %msg)
1082		1429
1083	Sends an ext reply to the player.	1430	Sends an ext reply to the player.
1084		1431
1085	=cut	1432	=cut
1086		1433
1087	sub ext_reply($$$%) {	1434	sub ext_reply($$%) {
1088	my ($self, $id, %msg) = @_;	1435	my ($self, $id, %msg) = @_;
1089		1436
1090	$msg{msgid} = $id;	1437	$msg{msgid} = $id;
1091		1438	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1092	$self->send ("ext " . cf::to_json \%msg);
1093	}	1439	}
1094		1440
1095	package cf;	1441	=item $player->ext_event ($type, %msg)
		1442
		1443	Sends an ext event to the client.
		1444
		1445	=cut
		1446
		1447	sub ext_event($$%) {
		1448	my ($self, $type, %msg) = @_;
		1449
		1450	$self->ns->ext_event ($type, %msg);
		1451	}
		1452
		1453	=head3 cf::region
		1454
		1455	=over 4
		1456
		1457	=cut
		1458
		1459	package cf::region;
		1460
		1461	=item cf::region::find_by_path $path
		1462
		1463	Tries to decuce the likely region for a map knowing only its path.
		1464
		1465	=cut
		1466
		1467	sub find_by_path($) {
		1468	my ($path) = @_;
		1469
		1470	my ($match, $specificity);
		1471
		1472	for my $region (list) {
		1473	if ($region->match && $path =~ $region->match) {
		1474	($match, $specificity) = ($region, $region->specificity)
		1475	if $region->specificity > $specificity;
		1476	}
		1477	}
		1478
		1479	$match
		1480	}
1096		1481
1097	=back	1482	=back
1098
1099		1483
1100	=head3 cf::map	1484	=head3 cf::map
1101		1485
1102	=over 4	1486	=over 4
1103		1487
…		…
1107		1491
1108	use Fcntl;	1492	use Fcntl;
1109	use Coro::AIO;	1493	use Coro::AIO;
1110		1494
1111	use overload	1495	use overload
1112	'""' => \&as_string;	1496	'""' => \&as_string,
		1497	fallback => 1;
1113		1498
1114	our $MAX_RESET = 3600;	1499	our $MAX_RESET = 3600;
1115	our $DEFAULT_RESET = 3000;	1500	our $DEFAULT_RESET = 3000;
1116		1501
1117	sub generate_random_map {	1502	sub generate_random_map {
1118	my ($self, $rmp) = @_;	1503	my ($self, $rmp) = @_;
1119
1120	# mit "rum" bekleckern, nicht	1504	# mit "rum" bekleckern, nicht
1121	$self->_create_random_map (	1505	$self->_create_random_map (
1122	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1506	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1507	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1124	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1508	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1131	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1515	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132	(cf::region::find $rmp->{region}), $rmp->{custom}	1516	(cf::region::find $rmp->{region}), $rmp->{custom}
1133	)	1517	)
1134	}	1518	}
1135		1519
		1520	=item cf::map->register ($regex, $prio)
		1521
		1522	Register a handler for the map path matching the given regex at the
		1523	givne priority (higher is better, built-in handlers have priority 0, the
		1524	default).
		1525
		1526	=cut
		1527
1136	sub register {	1528	sub register {
1137	my (undef, $regex) = @_;	1529	my (undef, $regex, $prio) = @_;
1138	my $pkg = caller;	1530	my $pkg = caller;
1139		1531
1140	no strict;	1532	no strict;
1141	push @{"$pkg\::ISA"}, __PACKAGE__;	1533	push @{"$pkg\::ISA"}, __PACKAGE__;
1142		1534
1143	$EXT_MAP{$pkg} = qr<$regex>;	1535	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144	}	1536	}
1145		1537
1146	# also paths starting with '/'	1538	# also paths starting with '/'
1147	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1539	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1540
		1541	sub thawer_merge {
		1542	my ($self, $merge) = @_;
		1543
		1544	# we have to keep some variables in memory intact
		1545	local $self->{path};
		1546	local $self->{load_path};
		1547
		1548	$self->SUPER::thawer_merge ($merge);
		1549	}
1148		1550
1149	sub normalise {	1551	sub normalise {
1150	my ($path, $base) = @_;	1552	my ($path, $base) = @_;
		1553
		1554	$path = "$path"; # make sure its a string
		1555
		1556	$path =~ s/\.map$//;
1151		1557
1152	# map plan:	1558	# map plan:
1153	#	1559	#
1154	# /! non-realised random map exit (special hack!)	1560	# /! non-realised random map exit (special hack!)
1155	# {... are special paths that are not being touched	1561	# {... are special paths that are not being touched
…		…
1183		1589
1184	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1590	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185		1591
1186	$path = normalise $path, $base;	1592	$path = normalise $path, $base;
1187		1593
1188	for my $pkg (keys %EXT_MAP) {	1594	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189	if ($path =~ $EXT_MAP{$pkg}) {	1595	if ($path =~ $EXT_MAP{$pkg}[1]) {
1190	my $self = bless cf::map::new, $pkg;	1596	my $self = bless cf::map::new, $pkg;
1191	$self->{path} = $path; $self->path ($path);	1597	$self->{path} = $path; $self->path ($path);
1192	$self->init; # pass $1 etc.	1598	$self->init; # pass $1 etc.
1193	return $self;	1599	return $self;
1194	}	1600	}
1195	}	1601	}
1196		1602
1197	Carp::carp "unable to resolve path '$path'.";	1603	Carp::carp "unable to resolve path '$path' (base '$base').";
1198	()	1604	()
1199	}	1605	}
1200		1606
1201	sub init {	1607	sub init {
1202	my ($self) = @_;	1608	my ($self) = @_;
…		…
1217		1623
1218	# the original (read-only) location	1624	# the original (read-only) location
1219	sub load_path {	1625	sub load_path {
1220	my ($self) = @_;	1626	my ($self) = @_;
1221		1627
1222	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1628	"$MAPDIR/$self->{path}.map"
1223	}	1629	}
1224		1630
1225	# the temporary/swap location	1631	# the temporary/swap location
1226	sub save_path {	1632	sub save_path {
1227	my ($self) = @_;	1633	my ($self) = @_;
1228		1634
1229	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1635	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1230	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1636	"$TMPDIR/$path.map"
1231	}	1637	}
1232		1638
1233	# the unique path, undef == no special unique path	1639	# the unique path, undef == no special unique path
1234	sub uniq_path {	1640	sub uniq_path {
1235	my ($self) = @_;	1641	my ($self) = @_;
1236		1642
1237	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1643	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1238	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1644	"$UNIQUEDIR/$path"
1239	}	1645	}
1240		1646
1241	# and all this just because we cannot iterate over	1647	# and all this just because we cannot iterate over
1242	# all maps in C++...	1648	# all maps in C++...
1243	sub change_all_map_light {	1649	sub change_all_map_light {
…		…
1245		1651
1246	$_->change_map_light ($change)	1652	$_->change_map_light ($change)
1247	for grep $_->outdoor, values %cf::MAP;	1653	for grep $_->outdoor, values %cf::MAP;
1248	}	1654	}
1249		1655
		1656	sub decay_objects {
		1657	my ($self) = @_;
		1658
		1659	return if $self->{deny_reset};
		1660
		1661	$self->do_decay_objects;
		1662	}
		1663
1250	sub unlink_save {	1664	sub unlink_save {
1251	my ($self) = @_;	1665	my ($self) = @_;
1252		1666
1253	utf8::encode (my $save = $self->save_path);	1667	utf8::encode (my $save = $self->save_path);
1254	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1669	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256	}	1670	}
1257		1671
1258	sub load_header_from($) {	1672	sub load_header_from($) {
1259	my ($self, $path) = @_;	1673	my ($self, $path) = @_;
1260		1674
1261	utf8::encode $path;	1675	utf8::encode $path;
1262	aio_open $path, O_RDONLY, 0	1676	#aio_open $path, O_RDONLY, 0
1263	or return;	1677	# or return;
1264		1678
1265	$self->_load_header ($path)	1679	$self->_load_header ($path)
1266	or return;	1680	or return;
1267		1681
1268	$self->{load_path} = $path;	1682	$self->{load_path} = $path;
1269		1683
1270	1	1684	1
1271	}	1685	}
1272		1686
1273	sub load_orig {	1687	sub load_header_orig {
1274	my ($self) = @_;	1688	my ($self) = @_;
1275		1689
1276	$self->load_header_from ($self->load_path)	1690	$self->load_header_from ($self->load_path)
1277	}	1691	}
1278		1692
1279	sub load_temp {	1693	sub load_header_temp {
1280	my ($self) = @_;	1694	my ($self) = @_;
1281		1695
1282	$self->load_header_from ($self->save_path)	1696	$self->load_header_from ($self->save_path)
		1697	}
		1698
		1699	sub prepare_temp {
		1700	my ($self) = @_;
		1701
		1702	$self->last_access ((delete $self->{last_access})
		1703	|| $cf::RUNTIME); #d#
		1704	# safety
		1705	$self->{instantiate_time} = $cf::RUNTIME
		1706	if $self->{instantiate_time} > $cf::RUNTIME;
		1707	}
		1708
		1709	sub prepare_orig {
		1710	my ($self) = @_;
		1711
		1712	$self->{load_original} = 1;
		1713	$self->{instantiate_time} = $cf::RUNTIME;
		1714	$self->last_access ($cf::RUNTIME);
		1715	$self->instantiate;
1283	}	1716	}
1284		1717
1285	sub load_header {	1718	sub load_header {
1286	my ($self) = @_;	1719	my ($self) = @_;
1287		1720
1288	if ($self->load_temp) {	1721	if ($self->load_header_temp) {
1289	$self->last_access ((delete $self->{last_access})	1722	$self->prepare_temp;
1290	|| $cf::RUNTIME); #d#
1291	# safety
1292	$self->{instantiate_time} = $cf::RUNTIME
1293	if $self->{instantiate_time} > $cf::RUNTIME;
1294	} else {	1723	} else {
1295	$self->load_orig	1724	$self->load_header_orig
1296	or return;	1725	or return;
1297		1726	$self->prepare_orig;
1298	$self->{load_original} = 1;
1299	$self->{instantiate_time} = $cf::RUNTIME;
1300	$self->last_access ($cf::RUNTIME);
1301	$self->instantiate;
1302	}	1727	}
		1728
		1729	$self->{deny_reset} = 1
		1730	if $self->no_reset;
		1731
		1732	$self->default_region (cf::region::find_by_path $self->{path})
		1733	unless $self->default_region;
1303		1734
1304	1	1735	1
1305	}	1736	}
1306		1737
1307	sub find;	1738	sub find;
…		…
1320	$map->{last_save} = $cf::RUNTIME;	1751	$map->{last_save} = $cf::RUNTIME;
1321		1752
1322	$map->load_header	1753	$map->load_header
1323	or return;	1754	or return;
1324		1755
1325	if ($map->should_reset) {	1756	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1757	# doing this can freeze the server in a sync job, obviously
		1758	#$cf::WAIT_FOR_TICK->wait;
1326	$map->reset;	1759	$map->reset;
1327	undef $guard;	1760	undef $guard;
1328	$map = find $path	1761	return find $path;
1329	or return;
1330	}	1762	}
1331		1763
1332	$cf::MAP{$path} = $map	1764	$cf::MAP{$path} = $map
1333	}	1765	}
1334	}	1766	}
		1767
		1768	sub pre_load { }
		1769	sub post_load { }
1335		1770
1336	sub load {	1771	sub load {
1337	my ($self) = @_;	1772	my ($self) = @_;
1338		1773
		1774	local $self->{deny_reset} = 1; # loading can take a long time
		1775
1339	my $path = $self->{path};	1776	my $path = $self->{path};
		1777
		1778	{
1340	my $guard = cf::lock_acquire "map_load:$path";	1779	my $guard = cf::lock_acquire "map_load:$path";
1341		1780
1342	return if $self->in_memory != cf::MAP_SWAPPED;	1781	return if $self->in_memory != cf::MAP_SWAPPED;
1343		1782
1344	$self->in_memory (cf::MAP_LOADING);	1783	$self->in_memory (cf::MAP_LOADING);
1345		1784
1346	$self->alloc;	1785	$self->alloc;
1347	$self->_load_objects ($self->{load_path}, 1)
1348	or return;
1349		1786
1350	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1787	$self->pre_load;
1351	if delete $self->{load_original};
1352
1353	if (my $uniq = $self->uniq_path) {
1354	utf8::encode $uniq;
1355	if (aio_open $uniq, O_RDONLY, 0) {
1356	$self->clear_unique_items;
1357	$self->_load_objects ($uniq, 0);
1358	}
1359	}
1360
1361	Coro::cede;
1362
1363	# now do the right thing for maps
1364	$self->link_multipart_objects;
1365
1366	unless ($self->{deny_activate}) {
1367	$self->decay_objects;
1368	$self->fix_auto_apply;
1369	$self->update_buttons;
1370	Coro::cede;	1788	Coro::cede;
1371	$self->set_darkness_map;	1789
		1790	$self->_load_objects ($self->{load_path}, 1)
		1791	or return;
		1792
		1793	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1794	if delete $self->{load_original};
		1795
		1796	if (my $uniq = $self->uniq_path) {
		1797	utf8::encode $uniq;
		1798	if (aio_open $uniq, O_RDONLY, 0) {
		1799	$self->clear_unique_items;
		1800	$self->_load_objects ($uniq, 0);
		1801	}
		1802	}
		1803
		1804	Coro::cede;
		1805	# now do the right thing for maps
		1806	$self->link_multipart_objects;
1372	$self->difficulty ($self->estimate_difficulty)	1807	$self->difficulty ($self->estimate_difficulty)
1373	unless $self->difficulty;	1808	unless $self->difficulty;
1374	Coro::cede;	1809	Coro::cede;
		1810
		1811	unless ($self->{deny_activate}) {
		1812	$self->decay_objects;
		1813	$self->fix_auto_apply;
		1814	$self->update_buttons;
		1815	Coro::cede;
		1816	$self->set_darkness_map;
		1817	Coro::cede;
1375	$self->activate;	1818	$self->activate;
1376	}	1819	}
1377		1820
1378	$self->in_memory (cf::MAP_IN_MEMORY);	1821	$self->in_memory (cf::MAP_IN_MEMORY);
		1822	}
		1823
		1824	$self->post_load;
1379	}	1825	}
1380		1826
1381	sub customise_for {	1827	sub customise_for {
1382	my ($self, $ob) = @_;	1828	my ($self, $ob) = @_;
1383		1829
1384	return find "~" . $ob->name . "/" . $self->{path}	1830	return find "~" . $ob->name . "/" . $self->{path}
1385	if $self->per_player;	1831	if $self->per_player;
		1832
		1833	# return find "?party/" . $ob->name . "/" . $self->{path}
		1834	# if $self->per_party;
1386		1835
1387	$self	1836	$self
1388	}	1837	}
1389		1838
1390	# find and load all maps in the 3x3 area around a map	1839	# find and load all maps in the 3x3 area around a map
…		…
1422		1871
1423	cf::sync_job { $map->load };	1872	cf::sync_job { $map->load };
1424	}	1873	}
1425		1874
1426	our %MAP_PREFETCH;	1875	our %MAP_PREFETCH;
1427	our $MAP_PREFETCHER = Coro::async {	1876	our $MAP_PREFETCHER = undef;
1428	while () {
1429	for my $path (keys %MAP_PREFETCH) {
1430	my $map = find $path
1431	or next;
1432	$map->load;
1433
1434	delete $MAP_PREFETCH{$path};
1435	}
1436	Coro::schedule;
1437	}
1438	};
1439		1877
1440	sub find_async {	1878	sub find_async {
1441	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1442		1880
1443	$path = normalise $path, $origin && $origin->{path};	1881	$path = normalise $path, $origin && $origin->{path};
1444		1882
1445	if (my $map = $cf::MAP{$path}) {	1883	if (my $map = $cf::MAP{$path}) {
1446	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1884	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1447	}	1885	}
1448		1886
1449	$MAP_PREFETCH{$path} = 0;	1887	undef $MAP_PREFETCH{$path};
		1888	$MAP_PREFETCHER ||= cf::async {
		1889	while (%MAP_PREFETCH) {
		1890	for my $path (keys %MAP_PREFETCH) {
		1891	my $map = find $path
		1892	or next;
		1893	$map->load;
		1894
		1895	delete $MAP_PREFETCH{$path};
		1896	}
		1897	}
		1898	undef $MAP_PREFETCHER;
		1899	};
1450	$MAP_PREFETCHER->ready;	1900	$MAP_PREFETCHER->prio (6);
1451		1901
1452	()	1902	()
1453	}	1903	}
1454		1904
1455	sub save {	1905	sub save {
…		…
1500		1950
1501	sub reset_at {	1951	sub reset_at {
1502	my ($self) = @_;	1952	my ($self) = @_;
1503		1953
1504	# TODO: safety, remove and allow resettable per-player maps	1954	# TODO: safety, remove and allow resettable per-player maps
1505	return 1e99 if $self->isa ("ext::map_per_player");#d#
1506	return 1e99 if $self->{deny_reset};	1955	return 1e99 if $self->{deny_reset};
1507		1956
1508	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1957	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1509	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1958	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1510		1959
…		…
1515	my ($self) = @_;	1964	my ($self) = @_;
1516		1965
1517	$self->reset_at <= $cf::RUNTIME	1966	$self->reset_at <= $cf::RUNTIME
1518	}	1967	}
1519		1968
1520	sub rename {
1521	my ($self, $new_path) = @_;
1522
1523	normalise $new_path;
1524
1525	$self->unlink_save;
1526
1527	delete $cf::MAP{$self->path};
1528	$self->{path} = $new_path; $self->path ($self->{path});
1529	$cf::MAP{$self->path} = $self;
1530
1531	$self->save;
1532	}
1533
1534	sub reset {	1969	sub reset {
1535	my ($self) = @_;	1970	my ($self) = @_;
1536		1971
1537	my $lock = cf::lock_acquire "map_data:$self->{path}";	1972	my $lock = cf::lock_acquire "map_data:$self->{path}";
1538		1973
1539	return if $self->players;	1974	return if $self->players;
1540	return if $self->isa ("ext::map_per_player");#d#
1541		1975
1542	warn "resetting map ", $self->path;#d#	1976	warn "resetting map ", $self->path;
		1977
		1978	$self->in_memory (cf::MAP_SWAPPED);
		1979
		1980	# need to save uniques path
		1981	unless ($self->{deny_save}) {
		1982	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1983
		1984	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1985	if $uniq;
		1986	}
1543		1987
1544	delete $cf::MAP{$self->path};	1988	delete $cf::MAP{$self->path};
1545		1989
1546	$self->in_memory (cf::MAP_SWAPPED);
1547	$self->clear;	1990	$self->clear;
1548		1991
1549	$_->clear_links_to ($self) for values %cf::MAP;	1992	$_->clear_links_to ($self) for values %cf::MAP;
1550		1993
1551	$self->unlink_save;	1994	$self->unlink_save;
…		…
1555	my $nuke_counter = "aaaa";	1998	my $nuke_counter = "aaaa";
1556		1999
1557	sub nuke {	2000	sub nuke {
1558	my ($self) = @_;	2001	my ($self) = @_;
1559		2002
		2003	delete $cf::MAP{$self->path};
		2004
		2005	$self->unlink_save;
		2006
		2007	bless $self, "cf::map";
		2008	delete $self->{deny_reset};
1560	$self->{deny_save} = 1;	2009	$self->{deny_save} = 1;
1561	$self->reset_timeout (1);	2010	$self->reset_timeout (1);
1562	$self->rename ("{nuke}/" . ($nuke_counter++));	2011	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2012
		2013	$cf::MAP{$self->path} = $self;
		2014
1563	$self->reset; # polite request, might not happen	2015	$self->reset; # polite request, might not happen
		2016	}
		2017
		2018	=item $maps = cf::map::tmp_maps
		2019
		2020	Returns an arrayref with all map paths of currently instantiated and saved
		2021	maps. May block.
		2022
		2023	=cut
		2024
		2025	sub tmp_maps() {
		2026	[
		2027	map {
		2028	utf8::decode $_;
		2029	/\.map$/
		2030	? normalise $_
		2031	: ()
		2032	} @{ aio_readdir $TMPDIR or [] }
		2033	]
		2034	}
		2035
		2036	=item $maps = cf::map::random_maps
		2037
		2038	Returns an arrayref with all map paths of currently instantiated and saved
		2039	random maps. May block.
		2040
		2041	=cut
		2042
		2043	sub random_maps() {
		2044	[
		2045	map {
		2046	utf8::decode $_;
		2047	/\.map$/
		2048	? normalise "?random/$_"
		2049	: ()
		2050	} @{ aio_readdir $RANDOMDIR or [] }
		2051	]
1564	}	2052	}
1565		2053
1566	=item cf::map::unique_maps	2054	=item cf::map::unique_maps
1567		2055
1568	Returns an arrayref of paths of all shared maps that have	2056	Returns an arrayref of paths of all shared maps that have
1569	instantiated unique items. May block.	2057	instantiated unique items. May block.
1570		2058
1571	=cut	2059	=cut
1572		2060
1573	sub unique_maps() {	2061	sub unique_maps() {
1574	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2062	[
1575	or return;	2063	map {
1576
1577	my @paths;
1578
1579	for (@$files) {
1580	utf8::decode $_;	2064	utf8::decode $_;
1581	next if /\.pst$/;
1582	next unless /^$PATH_SEP/o;
1583
1584	s/\.map$//;	2065	/\.map$/
1585	push @paths, $_;	2066	? normalise $_
		2067	: ()
		2068	} @{ aio_readdir $UNIQUEDIR or [] }
1586	}	2069	]
1587
1588	\@paths
1589	}	2070	}
1590		2071
1591	package cf;	2072	package cf;
1592		2073
1593	=back	2074	=back
…		…
1639		2120
1640	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2121	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1641		2122
1642	if ($self->{record_replies}) {	2123	if ($self->{record_replies}) {
1643	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2124	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2125
1644	} else {	2126	} else {
		2127	my $pl = $self->contr;
		2128
		2129	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2130	my $diag = $pl->{npc_dialog};
		2131	$diag->{pl}->ext_reply (
		2132	$diag->{id},
		2133	msgtype => "reply",
		2134	msg => $diag->{pl}->expand_cfpod ($msg),
		2135	add_topics => []
		2136	);
		2137
		2138	} else {
1645	$msg = $npc->name . " says: $msg" if $npc;	2139	$msg = $npc->name . " says: $msg" if $npc;
1646	$self->message ($msg, $flags);	2140	$self->message ($msg, $flags);
		2141	}
1647	}	2142	}
1648	}	2143	}
1649		2144
1650	=item $player_object->may ("access")	2145	=item $player_object->may ("access")
1651		2146
…		…
1684	=cut	2179	=cut
1685		2180
1686	sub link_map {	2181	sub link_map {
1687	unless ($LINK_MAP) {	2182	unless ($LINK_MAP) {
1688	$LINK_MAP = cf::map::find "{link}"	2183	$LINK_MAP = cf::map::find "{link}"
1689	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2184	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690	$LINK_MAP->load;	2185	$LINK_MAP->load;
1691	}	2186	}
1692		2187
1693	$LINK_MAP	2188	$LINK_MAP
1694	}	2189	}
…		…
1699	$self->deactivate_recursive;	2194	$self->deactivate_recursive;
1700		2195
1701	return if UNIVERSAL::isa $self->map, "ext::map_link";	2196	return if UNIVERSAL::isa $self->map, "ext::map_link";
1702		2197
1703	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2198	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704	if $self->map;	2199	if $self->map && $self->map->{path} ne "{link}";
1705		2200
1706	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2201	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1707	}	2202	}
1708		2203
1709	sub cf::object::player::leave_link {	2204	sub cf::object::player::leave_link {
1710	my ($self, $map, $x, $y) = @_;	2205	my ($self, $map, $x, $y) = @_;
		2206
		2207	return unless $self->contr->active;
1711		2208
1712	my $link_pos = delete $self->{_link_pos};	2209	my $link_pos = delete $self->{_link_pos};
1713		2210
1714	unless ($map) {	2211	unless ($map) {
1715	# restore original map position	2212	# restore original map position
…		…
1733	$map->load;	2230	$map->load;
1734	$map->load_diag;	2231	$map->load_diag;
1735		2232
1736	return unless $self->contr->active;	2233	return unless $self->contr->active;
1737	$self->activate_recursive;	2234	$self->activate_recursive;
		2235
		2236	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1738	$self->enter_map ($map, $x, $y);	2237	$self->enter_map ($map, $x, $y);
1739	}	2238	}
1740		2239
1741	cf::player->attach (
1742	on_logout => sub {
1743	my ($pl) = @_;
1744
1745	# abort map switching before logout
1746	if ($pl->ob->{_link_pos}) {
1747	cf::sync_job {
1748	$pl->ob->leave_link
1749	};
1750	}
1751	},
1752	on_login => sub {
1753	my ($pl) = @_;
1754
1755	# try to abort aborted map switching on player login :)
1756	# should happen only on crashes
1757	if ($pl->ob->{_link_pos}) {
1758	$pl->ob->enter_link;
1759	(async {
1760	# we need this sleep as the login has a concurrent enter_exit running
1761	# and this sleep increases chances of the player not ending up in scorn
1762	$pl->ob->reply (undef,
1763	"There was an internal problem at your last logout, "
1764	. "the server will try to bring you to your intended destination in a second.",
1765	cf::NDI_RED);
1766	Coro::Timer::sleep 1;
1767	$pl->ob->leave_link;
1768	})->prio (2);
1769	}
1770	},
1771	);
1772
1773	=item $player_object->goto ($path, $x, $y)	2240	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1774		2241
		2242	Moves the player to the given map-path and coordinates by first freezing
		2243	her, loading and preparing them map, calling the provided $check callback
		2244	that has to return the map if sucecssful, and then unfreezes the player on
		2245	the new (success) or old (failed) map position.
		2246
1775	=cut	2247	=cut
		2248
		2249	our $GOTOGEN;
1776		2250
1777	sub cf::object::player::goto {	2251	sub cf::object::player::goto {
1778	my ($self, $path, $x, $y) = @_;	2252	my ($self, $path, $x, $y, $check) = @_;
		2253
		2254	# do generation counting so two concurrent goto's will be executed in-order
		2255	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1779		2256
1780	$self->enter_link;	2257	$self->enter_link;
1781		2258
1782	(async {	2259	(async {
		2260	my $map = eval {
1783	my $map = cf::map::find $path;	2261	my $map = cf::map::find $path;
		2262
		2263	if ($map) {
1784	$map = $map->customise_for ($self) if $map;	2264	$map = $map->customise_for ($self);
1785		2265	$map = $check->($map) if $check && $map;
1786	# warn "entering ", $map->path, " at ($x, $y)\n"	2266	} else {
1787	# if $map;
1788
1789	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2267	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2268	}
1790		2269
		2270	$map
		2271	};
		2272
		2273	if ($@) {
		2274	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2275	LOG llevError | logBacktrace, Carp::longmess $@;
		2276	}
		2277
		2278	if ($gen == $self->{_goto_generation}) {
		2279	delete $self->{_goto_generation};
1791	$self->leave_link ($map, $x, $y);	2280	$self->leave_link ($map, $x, $y);
		2281	}
1792	})->prio (1);	2282	})->prio (1);
1793	}	2283	}
1794		2284
1795	=item $player_object->enter_exit ($exit_object)	2285	=item $player_object->enter_exit ($exit_object)
1796		2286
…		…
1798		2288
1799	sub parse_random_map_params {	2289	sub parse_random_map_params {
1800	my ($spec) = @_;	2290	my ($spec) = @_;
1801		2291
1802	my $rmp = { # defaults	2292	my $rmp = { # defaults
1803	xsize => 10,	2293	xsize => (cf::rndm 15, 40),
1804	ysize => 10,	2294	ysize => (cf::rndm 15, 40),
		2295	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2296	#layout => string,
1805	};	2297	};
1806		2298
1807	for (split /\n/, $spec) {	2299	for (split /\n/, $spec) {
1808	my ($k, $v) = split /\s+/, $_, 2;	2300	my ($k, $v) = split /\s+/, $_, 2;
1809		2301
…		…
1813	$rmp	2305	$rmp
1814	}	2306	}
1815		2307
1816	sub prepare_random_map {	2308	sub prepare_random_map {
1817	my ($exit) = @_;	2309	my ($exit) = @_;
		2310
		2311	my $guard = cf::lock_acquire "exit_prepare:$exit";
1818		2312
1819	# all this does is basically replace the /! path by	2313	# all this does is basically replace the /! path by
1820	# a new random map path (?random/...) with a seed	2314	# a new random map path (?random/...) with a seed
1821	# that depends on the exit object	2315	# that depends on the exit object
1822		2316
1823	my $rmp = parse_random_map_params $exit->msg;	2317	my $rmp = parse_random_map_params $exit->msg;
1824		2318
1825	if ($exit->map) {	2319	if ($exit->map) {
1826	$rmp->{region} = $exit->map->region_name;	2320	$rmp->{region} = $exit->region->name;
1827	$rmp->{origin_map} = $exit->map->path;	2321	$rmp->{origin_map} = $exit->map->path;
1828	$rmp->{origin_x} = $exit->x;	2322	$rmp->{origin_x} = $exit->x;
1829	$rmp->{origin_y} = $exit->y;	2323	$rmp->{origin_y} = $exit->y;
1830	}	2324	}
1831		2325
1832	$rmp->{random_seed} ||= $exit->random_seed;	2326	$rmp->{random_seed} ||= $exit->random_seed;
1833		2327
1834	my $data = cf::to_json $rmp;	2328	my $data = cf::to_json $rmp;
1835	my $md5 = Digest::MD5::md5_hex $data;	2329	my $md5 = Digest::MD5::md5_hex $data;
		2330	my $meta = "$RANDOMDIR/$md5.meta";
1836		2331
1837	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2332	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838	aio_write $fh, 0, (length $data), $data, 0;	2333	aio_write $fh, 0, (length $data), $data, 0;
		2334	undef $fh;
		2335	aio_rename "$meta~", $meta;
1839		2336
1840	$exit->slaying ("?random/$md5");	2337	$exit->slaying ("?random/$md5");
1841	$exit->msg (undef);	2338	$exit->msg (undef);
1842	}	2339	}
1843	}	2340	}
1844		2341
1845	sub cf::object::player::enter_exit {	2342	sub cf::object::player::enter_exit {
1846	my ($self, $exit) = @_;	2343	my ($self, $exit) = @_;
1847		2344
1848	return unless $self->type == cf::PLAYER;	2345	return unless $self->type == cf::PLAYER;
		2346
		2347	if ($exit->slaying eq "/!") {
		2348	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2349	# the problem is that $exit might not survive long enough
		2350	# so it needs to be done right now, right here
		2351	cf::sync_job { prepare_random_map $exit };
		2352	}
		2353
		2354	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2355	my $hp = $exit->stats->hp;
		2356	my $sp = $exit->stats->sp;
1849		2357
1850	$self->enter_link;	2358	$self->enter_link;
1851		2359
1852	(async {	2360	(async {
1853	$self->deactivate_recursive; # just to be sure	2361	$self->deactivate_recursive; # just to be sure
1854	unless (eval {	2362	unless (eval {
1855	prepare_random_map $exit	2363	$self->goto ($slaying, $hp, $sp);
1856	if $exit->slaying eq "/!";
1857
1858	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1859	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1860		2364
1861	1;	2365	1;
1862	}) {	2366	}) {
1863	$self->message ("Something went wrong deep within the crossfire server. "	2367	$self->message ("Something went wrong deep within the crossfire server. "
1864	. "I'll try to bring you back to the map you were before. "	2368	. "I'll try to bring you back to the map you were before. "
1865	. "Please report this to the dungeon master!",	2369	. "Please report this to the dungeon master!",
1866	cf::NDI_UNIQUE | cf::NDI_RED);	2370	cf::NDI_UNIQUE | cf::NDI_RED);
1867		2371
1868	warn "ERROR in enter_exit: $@";	2372	warn "ERROR in enter_exit: $@";
1869	$self->leave_link;	2373	$self->leave_link;
1870	}	2374	}
1871	})->prio (1);	2375	})->prio (1);
…		…
1884		2388
1885	sub cf::client::send_drawinfo {	2389	sub cf::client::send_drawinfo {
1886	my ($self, $text, $flags) = @_;	2390	my ($self, $text, $flags) = @_;
1887		2391
1888	utf8::encode $text;	2392	utf8::encode $text;
1889	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2393	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890	}	2394	}
1891		2395
		2396	=item $client->send_msg ($color, $type, $msg, [extra...])
		2397
		2398	Send a drawinfo or msg packet to the client, formatting the msg for the
		2399	client if neccessary. C<$type> should be a string identifying the type of
		2400	the message, with C<log> being the default. If C<$color> is negative, suppress
		2401	the message unless the client supports the msg packet.
		2402
		2403	=cut
		2404
		2405	sub cf::client::send_msg {
		2406	my ($self, $color, $type, $msg, @extra) = @_;
		2407
		2408	$msg = $self->pl->expand_cfpod ($msg);
		2409
		2410	if ($self->can_msg) {
		2411	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2412	} else {
		2413	# replace some tags by gcfclient-compatible ones
		2414	for ($msg) {
		2415	1 while
		2416	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2417	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2418	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2419	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2420	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2421	}
		2422
		2423	if ($color >= 0) {
		2424	if (0 && $msg =~ /\[/) {
		2425	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2426	} else {
		2427	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2428	$self->send_packet ("drawinfo $color $msg")
		2429	}
		2430	}
		2431	}
		2432	}
		2433
		2434	=item $client->ext_event ($type, %msg)
		2435
		2436	Sends an ext event to the client.
		2437
		2438	=cut
		2439
		2440	sub cf::client::ext_event($$%) {
		2441	my ($self, $type, %msg) = @_;
		2442
		2443	$msg{msgtype} = "event_$type";
		2444	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2445	}
1892		2446
1893	=item $success = $client->query ($flags, "text", \&cb)	2447	=item $success = $client->query ($flags, "text", \&cb)
1894		2448
1895	Queues a query to the client, calling the given callback with	2449	Queues a query to the client, calling the given callback with
1896	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2450	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1897	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2451	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1898		2452
1899	Queries can fail, so check the return code. Or don't, as queries will become	2453	Queries can fail, so check the return code. Or don't, as queries will
1900	reliable at some point in the future.	2454	become reliable at some point in the future.
1901		2455
1902	=cut	2456	=cut
1903		2457
1904	sub cf::client::query {	2458	sub cf::client::query {
1905	my ($self, $flags, $text, $cb) = @_;	2459	my ($self, $flags, $text, $cb) = @_;
…		…
1913	utf8::encode $text;	2467	utf8::encode $text;
1914	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2468	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1915		2469
1916	$self->send_packet ($self->{query_queue}[0][0])	2470	$self->send_packet ($self->{query_queue}[0][0])
1917	if @{ $self->{query_queue} } == 1;	2471	if @{ $self->{query_queue} } == 1;
		2472
		2473	1
1918	}	2474	}
1919		2475
1920	cf::client->attach (	2476	cf::client->attach (
		2477	on_connect => sub {
		2478	my ($ns) = @_;
		2479
		2480	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2481	},
1921	on_reply => sub {	2482	on_reply => sub {
1922	my ($ns, $msg) = @_;	2483	my ($ns, $msg) = @_;
1923		2484
1924	# this weird shuffling is so that direct followup queries	2485	# this weird shuffling is so that direct followup queries
1925	# get handled first	2486	# get handled first
1926	my $queue = delete $ns->{query_queue}	2487	my $queue = delete $ns->{query_queue}
1927	or return; # be conservative, not sure how that can happen, but we saw a crash here	2488	or return; # be conservative, not sure how that can happen, but we saw a crash here
1928		2489
1929	(shift @$queue)->[1]->($msg);	2490	(shift @$queue)->[1]->($msg);
		2491	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930		2492
1931	push @{ $ns->{query_queue} }, @$queue;	2493	push @{ $ns->{query_queue} }, @$queue;
1932		2494
1933	if (@{ $ns->{query_queue} } == @$queue) {	2495	if (@{ $ns->{query_queue} } == @$queue) {
1934	if (@$queue) {	2496	if (@$queue) {
…		…
1936	} else {	2498	} else {
1937	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2499	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1938	}	2500	}
1939	}	2501	}
1940	},	2502	},
		2503	on_exticmd => sub {
		2504	my ($ns, $buf) = @_;
		2505
		2506	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2507
		2508	if (ref $msg) {
		2509	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2510	if (my %reply = $cb->($ns, $msg)) {
		2511	$reply{msgid} = $msg->{msgid};
		2512	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2513	}
		2514	}
		2515	} else {
		2516	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2517	}
		2518
		2519	cf::override;
		2520	},
1941	);	2521	);
1942		2522
1943	=item $client->async (\&cb)	2523	=item $client->async (\&cb)
1944		2524
1945	Create a new coroutine, running the specified callback. The coroutine will	2525	Create a new coroutine, running the specified callback. The coroutine will
…		…
1992		2572
1993	# here we export the classes and methods available to script code	2573	# here we export the classes and methods available to script code
1994		2574
1995	=pod	2575	=pod
1996		2576
1997	The following fucntions and emthods are available within a safe environment:	2577	The following functions and methods are available within a safe environment:
1998		2578
1999	cf::object contr pay_amount pay_player map	2579	cf::object contr pay_amount pay_player map
2000	cf::object::player player	2580	cf::object::player player
2001	cf::player peaceful	2581	cf::player peaceful
2002	cf::map trigger	2582	cf::map trigger
…		…
2083	=back	2663	=back
2084		2664
2085	=cut	2665	=cut
2086		2666
2087	#############################################################################	2667	#############################################################################
		2668	# the server's init and main functions
2088		2669
2089	=head2 EXTENSION DATABASE SUPPORT	2670	sub load_facedata($) {
		2671	my ($path) = @_;
2090		2672
2091	Crossfire maintains a very simple database for extension use. It can	2673	warn "loading facedata from $path\n";
2092	currently store anything that can be serialised using Storable, which
2093	excludes objects.
2094		2674
2095	The parameter C<$family> should best start with the name of the extension	2675	my $facedata;
2096	using it, it should be unique.	2676	0 < aio_load $path, $facedata
		2677	or die "$path: $!";
2097		2678
2098	=over 4	2679	$facedata = Coro::Storable::thaw $facedata;
2099		2680
2100	=item $hashref = cf::db_get $family	2681	$facedata->{version} == 2
		2682	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		2683
2102	Return a hashref for use by the extension C<$family>, which can be
2103	modified. After modifications, you have to call C<cf::db_dirty> or
2104	C<cf::db_sync>.
2105
2106	=item $value = cf::db_get $family => $key
2107
2108	Returns a single value from the database
2109
2110	=item cf::db_put $family => $hashref
2111
2112	Stores the given family hashref into the database. Updates are delayed, if
2113	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2114
2115	=item cf::db_put $family => $key => $value
2116
2117	Stores the given C<$value> in the family hash. Updates are delayed, if you
2118	want the data to be synced to disk immediately, use C<cf::db_sync>.
2119
2120	=item cf::db_dirty
2121
2122	Marks the database as dirty, to be updated at a later time.
2123
2124	=item cf::db_sync
2125
2126	Immediately write the database to disk I<if it is dirty>.
2127
2128	=cut
2129
2130	our $DB;
2131
2132	{
2133	my $path = cf::localdir . "/database.pst";
2134
2135	sub db_load() {
2136	$DB = stat $path ? Storable::retrieve $path : { };
2137	}	2684	{
		2685	my $faces = $facedata->{faceinfo};
2138		2686
2139	my $pid;	2687	while (my ($face, $info) = each %$faces) {
2140		2688	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2141	sub db_save() {	2689	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2142	waitpid $pid, 0 if $pid;	2690	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2143	if (0 == ($pid = fork)) {	2691	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2144	$DB->{_meta}{version} = 1;	2692	Coro::cede;
2145	Storable::nstore $DB, "$path~";
2146	rename "$path~", $path;
2147	cf::_exit 0 if defined $pid;
2148	}
2149	}
2150
2151	my $dirty;
2152
2153	sub db_sync() {
2154	db_save if $dirty;
2155	undef $dirty;
2156	}
2157
2158	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2159	db_sync;
2160	});
2161
2162	sub db_dirty() {
2163	$dirty = 1;
2164	$idle->start;
2165	}
2166
2167	sub db_get($;$) {
2168	@_ >= 2
2169	? $DB->{$_[0]}{$_[1]}
2170	: ($DB->{$_[0]} ||= { })
2171	}
2172
2173	sub db_put($$;$) {
2174	if (@_ >= 3) {
2175	$DB->{$_[0]}{$_[1]} = $_[2];
2176	} else {
2177	$DB->{$_[0]} = $_[1];
2178	}
2179	db_dirty;
2180	}
2181
2182	cf::global->attach (
2183	prio => 10000,
2184	on_cleanup => sub {
2185	db_sync;
2186	},	2693	}
2187	);
2188	}
2189		2694
2190	#############################################################################	2695	while (my ($face, $info) = each %$faces) {
2191	# the server's main()	2696	next unless $info->{smooth};
		2697	my $idx = cf::face::find $face
		2698	or next;
		2699	if (my $smooth = cf::face::find $info->{smooth}) {
		2700	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2701	} else {
		2702	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2703	}
		2704	Coro::cede;
		2705	}
		2706	}
		2707
		2708	{
		2709	my $anims = $facedata->{animinfo};
		2710
		2711	while (my ($anim, $info) = each %$anims) {
		2712	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2713	Coro::cede;
		2714	}
		2715
		2716	cf::anim::invalidate_all; # d'oh
		2717	}
		2718
		2719	1
		2720	}
		2721
		2722	sub reload_regions {
		2723	load_resource_file "$MAPDIR/regions"
		2724	or die "unable to load regions file\n";
		2725	}
		2726
		2727	sub reload_facedata {
		2728	load_facedata "$DATADIR/facedata"
		2729	or die "unable to load facedata\n";
		2730	}
		2731
		2732	sub reload_archetypes {
		2733	load_resource_file "$DATADIR/archetypes"
		2734	or die "unable to load archetypes\n";
		2735	#d# NEED to laod twice to resolve forward references
		2736	# this really needs to be done in an extra post-pass
		2737	# (which needs to be synchronous, so solve it differently)
		2738	load_resource_file "$DATADIR/archetypes"
		2739	or die "unable to load archetypes\n";
		2740	}
		2741
		2742	sub reload_treasures {
		2743	load_resource_file "$DATADIR/treasures"
		2744	or die "unable to load treasurelists\n";
		2745	}
		2746
		2747	sub reload_resources {
		2748	warn "reloading resource files...\n";
		2749
		2750	reload_regions;
		2751	reload_facedata;
		2752	#reload_archetypes;#d#
		2753	reload_archetypes;
		2754	reload_treasures;
		2755
		2756	warn "finished reloading resource files\n";
		2757	}
		2758
		2759	sub init {
		2760	reload_resources;
		2761	}
2192		2762
2193	sub cfg_load {	2763	sub cfg_load {
2194	open my $fh, "<:utf8", cf::confdir . "/config"	2764	open my $fh, "<:utf8", "$CONFDIR/config"
2195	or return;	2765	or return;
2196		2766
2197	local $/;	2767	local $/;
2198	*CFG = YAML::Syck::Load <$fh>;	2768	*CFG = YAML::Syck::Load <$fh>;
2199		2769
…		…
2213		2783
2214	sub main {	2784	sub main {
2215	# we must not ever block the main coroutine	2785	# we must not ever block the main coroutine
2216	local $Coro::idle = sub {	2786	local $Coro::idle = sub {
2217	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2787	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2788	(async {
2218	async { Event::one_event };	2789	Event::one_event;
		2790	})->prio (Coro::PRIO_MAX);
2219	};	2791	};
2220		2792
2221	cfg_load;	2793	cfg_load;
2222	db_load;	2794	db_init;
2223	load_extensions;	2795	load_extensions;
		2796
		2797	$TICK_WATCHER->start;
2224	Event::loop;	2798	Event::loop;
2225	}	2799	}
2226		2800
2227	#############################################################################	2801	#############################################################################
2228	# initialisation and cleanup	2802	# initialisation and cleanup
2229		2803
2230	# install some emergency cleanup handlers	2804	# install some emergency cleanup handlers
2231	BEGIN {	2805	BEGIN {
2232	for my $signal (qw(INT HUP TERM)) {	2806	for my $signal (qw(INT HUP TERM)) {
2233	Event->signal (	2807	Event->signal (
		2808	reentrant => 0,
2234	data => WF_AUTOCANCEL,	2809	data => WF_AUTOCANCEL,
2235	signal => $signal,	2810	signal => $signal,
		2811	prio => 0,
2236	cb => sub {	2812	cb => sub {
2237	cf::cleanup "SIG$signal";	2813	cf::cleanup "SIG$signal";
2238	},	2814	},
2239	);	2815	);
2240	}	2816	}
		2817	}
		2818
		2819	sub write_runtime {
		2820	my $runtime = "$LOCALDIR/runtime";
		2821
		2822	# first touch the runtime file to show we are still running:
		2823	# the fsync below can take a very very long time.
		2824
		2825	IO::AIO::aio_utime $runtime, undef, undef;
		2826
		2827	my $guard = cf::lock_acquire "write_runtime";
		2828
		2829	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2830	or return;
		2831
		2832	my $value = $cf::RUNTIME + 90 + 10;
		2833	# 10 is the runtime save interval, for a monotonic clock
		2834	# 60 allows for the watchdog to kill the server.
		2835
		2836	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2837	and return;
		2838
		2839	# always fsync - this file is important
		2840	aio_fsync $fh
		2841	and return;
		2842
		2843	# touch it again to show we are up-to-date
		2844	aio_utime $fh, undef, undef;
		2845
		2846	close $fh
		2847	or return;
		2848
		2849	aio_rename "$runtime~", $runtime
		2850	and return;
		2851
		2852	warn "runtime file written.\n";
		2853
		2854	1
2241	}	2855	}
2242		2856
2243	sub emergency_save() {	2857	sub emergency_save() {
2244	my $freeze_guard = cf::freeze_mainloop;	2858	my $freeze_guard = cf::freeze_mainloop;
2245		2859
…		…
2262	my $map = $cf::MAP{$path} or next;	2876	my $map = $cf::MAP{$path} or next;
2263	$map->valid or next;	2877	$map->valid or next;
2264	$map->save;	2878	$map->save;
2265	}	2879	}
2266	warn "end emergency map save\n";	2880	warn "end emergency map save\n";
		2881
		2882	warn "begin emergency database checkpoint\n";
		2883	BDB::db_env_txn_checkpoint $DB_ENV;
		2884	warn "end emergency database checkpoint\n";
2267	};	2885	};
2268		2886
2269	warn "leave emergency perl save\n";	2887	warn "leave emergency perl save\n";
2270	}	2888	}
2271		2889
		2890	sub post_cleanup {
		2891	my ($make_core) = @_;
		2892
		2893	warn Carp::longmess "post_cleanup backtrace"
		2894	if $make_core;
		2895	}
		2896
2272	sub reload() {	2897	sub do_reload_perl() {
2273	# can/must only be called in main	2898	# can/must only be called in main
2274	if ($Coro::current != $Coro::main) {	2899	if ($Coro::current != $Coro::main) {
2275	warn "can only reload from main coroutine\n";	2900	warn "can only reload from main coroutine";
2276	return;	2901	return;
2277	}	2902	}
2278		2903
2279	warn "reloading...";	2904	warn "reloading...";
2280		2905
2281	warn "freezing server";	2906	warn "entering sync_job";
2282	my $guard = freeze_mainloop;	2907
		2908	cf::sync_job {
		2909	cf::write_runtime; # external watchdog should not bark
2283	cf::emergency_save;	2910	cf::emergency_save;
		2911	cf::write_runtime; # external watchdog should not bark
2284		2912
2285	warn "sync database to disk";	2913	warn "syncing database to disk";
2286	cf::db_sync;	2914	BDB::db_env_txn_checkpoint $DB_ENV;
2287	IO::AIO::flush;
2288		2915
2289	eval {
2290	# if anything goes wrong in here, we should simply crash as we already saved	2916	# if anything goes wrong in here, we should simply crash as we already saved
2291		2917
2292	warn "cancel all watchers";	2918	warn "cancelling all WF_AUTOCANCEL watchers";
2293	for (Event::all_watchers) {	2919	for (Event::all_watchers) {
2294	$_->cancel if $_->data & WF_AUTOCANCEL;	2920	$_->cancel if $_->data & WF_AUTOCANCEL;
2295	}	2921	}
2296		2922
		2923	warn "flushing outstanding aio requests";
		2924	for (;;) {
		2925	BDB::flush;
		2926	IO::AIO::flush;
		2927	Coro::cede;
		2928	last unless IO::AIO::nreqs || BDB::nreqs;
		2929	warn "iterate...";
		2930	}
		2931
		2932	++$RELOAD;
		2933
2297	warn "cancel all extension coros";	2934	warn "cancelling all extension coros";
2298	$_->cancel for values %EXT_CORO;	2935	$_->cancel for values %EXT_CORO;
2299	%EXT_CORO = ();	2936	%EXT_CORO = ();
2300		2937
2301	warn "remove commands";	2938	warn "removing commands";
2302	%COMMAND = ();	2939	%COMMAND = ();
2303		2940
2304	warn "remove ext commands";	2941	warn "removing ext/exti commands";
2305	%EXTCMD = ();	2942	%EXTCMD = ();
		2943	%EXTICMD = ();
2306		2944
2307	warn "unload/nuke all extensions";	2945	warn "unloading/nuking all extensions";
2308	for my $pkg (@EXTS) {	2946	for my $pkg (@EXTS) {
2309	warn "... unloading $pkg";	2947	warn "... unloading $pkg";
2310		2948
2311	if (my $cb = $pkg->can ("unload")) {	2949	if (my $cb = $pkg->can ("unload")) {
2312	eval {	2950	eval {
…		…
2317		2955
2318	warn "... nuking $pkg";	2956	warn "... nuking $pkg";
2319	Symbol::delete_package $pkg;	2957	Symbol::delete_package $pkg;
2320	}	2958	}
2321		2959
2322	warn "unload all perl modules loaded from $LIBDIR";	2960	warn "unloading all perl modules loaded from $LIBDIR";
2323	while (my ($k, $v) = each %INC) {	2961	while (my ($k, $v) = each %INC) {
2324	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2962	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325		2963
2326	warn "removing <$k>";	2964	warn "... unloading $k";
2327	delete $INC{$k};	2965	delete $INC{$k};
2328		2966
2329	$k =~ s/\.pm$//;	2967	$k =~ s/\.pm$//;
2330	$k =~ s/\//::/g;	2968	$k =~ s/\//::/g;
2331		2969
…		…
2334	}	2972	}
2335		2973
2336	Symbol::delete_package $k;	2974	Symbol::delete_package $k;
2337	}	2975	}
2338		2976
2339	warn "get rid of safe::, as good as possible";	2977	warn "getting rid of safe::, as good as possible";
2340	Symbol::delete_package "safe::$_"	2978	Symbol::delete_package "safe::$_"
2341	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2979	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342		2980
2343	warn "unload cf.pm \"a bit\"";	2981	warn "unloading cf.pm \"a bit\"";
2344	delete $INC{"cf.pm"};	2982	delete $INC{"cf.pm"};
		2983	delete $INC{"cf/pod.pm"};
2345		2984
2346	# don't, removes xs symbols, too,	2985	# don't, removes xs symbols, too,
2347	# and global variables created in xs	2986	# and global variables created in xs
2348	#Symbol::delete_package __PACKAGE__;	2987	#Symbol::delete_package __PACKAGE__;
2349		2988
		2989	warn "unload completed, starting to reload now";
		2990
2350	warn "reloading cf.pm";	2991	warn "reloading cf.pm";
2351	require cf;	2992	require cf;
2352	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2993	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2353		2994
2354	warn "load config and database again";	2995	warn "loading config and database again";
2355	cf::cfg_load;	2996	cf::cfg_load;
2356	cf::db_load;
2357		2997
2358	warn "load extensions";	2998	warn "loading extensions";
2359	cf::load_extensions;	2999	cf::load_extensions;
2360		3000
2361	warn "reattach attachments to objects/players";	3001	warn "reattaching attachments to objects/players";
2362	_global_reattach;	3002	_global_reattach; # objects, sockets
2363	warn "reattach attachments to maps";	3003	warn "reattaching attachments to maps";
2364	reattach $_ for values %MAP;	3004	reattach $_ for values %MAP;
2365	};	3005	warn "reattaching attachments to players";
		3006	reattach $_ for values %PLAYER;
2366		3007
2367	if ($@) {	3008	warn "leaving sync_job";
		3009
		3010	1
		3011	} or do {
2368	warn $@;	3012	warn $@;
2369	warn "error while reloading, exiting.";	3013	warn "error while reloading, exiting.";
2370	exit 1;	3014	exit 1;
2371	}	3015	};
2372		3016
2373	warn "reloaded";	3017	warn "reloaded";
2374	};	3018	};
2375		3019
		3020	our $RELOAD_WATCHER; # used only during reload
		3021
		3022	sub reload_perl() {
		3023	# doing reload synchronously and two reloads happen back-to-back,
		3024	# coro crashes during coro_state_free->destroy here.
		3025
		3026	$RELOAD_WATCHER ||= Event->timer (
		3027	reentrant => 0,
		3028	after => 0,
		3029	data => WF_AUTOCANCEL,
		3030	cb => sub {
		3031	do_reload_perl;
		3032	undef $RELOAD_WATCHER;
		3033	},
		3034	);
		3035	}
		3036
2376	register_command "reload" => sub {	3037	register_command "reload" => sub {
2377	my ($who, $arg) = @_;	3038	my ($who, $arg) = @_;
2378		3039
2379	if ($who->flag (FLAG_WIZ)) {	3040	if ($who->flag (FLAG_WIZ)) {
2380	$who->message ("start of reload.");
2381	reload;
2382	$who->message ("end of reload.");	3041	$who->message ("reloading server.");
		3042	async { reload_perl };
2383	}	3043	}
2384	};	3044	};
2385		3045
2386	unshift @INC, $LIBDIR;	3046	unshift @INC, $LIBDIR;
2387		3047
		3048	my $bug_warning = 0;
		3049
		3050	our @WAIT_FOR_TICK;
		3051	our @WAIT_FOR_TICK_BEGIN;
		3052
		3053	sub wait_for_tick {
		3054	return unless $TICK_WATCHER->is_active;
		3055	return if $Coro::current == $Coro::main;
		3056
		3057	my $signal = new Coro::Signal;
		3058	push @WAIT_FOR_TICK, $signal;
		3059	$signal->wait;
		3060	}
		3061
		3062	sub wait_for_tick_begin {
		3063	return unless $TICK_WATCHER->is_active;
		3064	return if $Coro::current == $Coro::main;
		3065
		3066	my $signal = new Coro::Signal;
		3067	push @WAIT_FOR_TICK_BEGIN, $signal;
		3068	$signal->wait;
		3069	}
		3070
		3071	my $min = 1e6;#d#
		3072	my $avg = 10;
2388	$TICK_WATCHER = Event->timer (	3073	$TICK_WATCHER = Event->timer (
2389	reentrant => 0,	3074	reentrant => 0,
		3075	parked => 1,
2390	prio => 0,	3076	prio => 0,
2391	at => $NEXT_TICK || $TICK,	3077	at => $NEXT_TICK || $TICK,
2392	data => WF_AUTOCANCEL,	3078	data => WF_AUTOCANCEL,
2393	cb => sub {	3079	cb => sub {
		3080	if ($Coro::current != $Coro::main) {
		3081	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3082	unless ++$bug_warning > 10;
		3083	return;
		3084	}
		3085
2394	$NOW = Event::time;	3086	$NOW = $tick_start = Event::time;
2395		3087
2396	cf::server_tick; # one server iteration	3088	cf::server_tick; # one server iteration
		3089
		3090	0 && sync_job {#d#
		3091	for(1..10) {
		3092	my $t = Event::time;
		3093	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3094	or die;
		3095
		3096	$map->width (50);
		3097	$map->height (50);
		3098	$map->alloc;
		3099	$map->_load_objects ("/tmp/x.map", 1);
		3100	my $t = Event::time - $t;
		3101
		3102	#next unless $t < 0.0013;#d#
		3103	if ($t < $min) {
		3104	$min = $t;
		3105	}
		3106	$avg = $avg * 0.99 + $t * 0.01;
		3107	}
		3108	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3109	exit 0;
		3110	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3111	};
		3112
2397	$RUNTIME += $TICK;	3113	$RUNTIME += $TICK;
2398	$NEXT_TICK += $TICK;	3114	$NEXT_TICK += $TICK;
2399		3115
2400	$WAIT_FOR_TICK->broadcast;	3116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2401	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3117	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3118	Coro::async_pool {
		3119	write_runtime
		3120	or warn "ERROR: unable to write runtime file: $!";
		3121	};
		3122	}
		3123
		3124	# my $AFTER = Event::time;
		3125	# warn $AFTER - $NOW;#d#
		3126
		3127	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3128	$sig->send;
		3129	}
		3130	while (my $sig = shift @WAIT_FOR_TICK) {
		3131	$sig->send;
		3132	}
		3133
		3134	$NOW = Event::time;
2402		3135
2403	# if we are delayed by four ticks or more, skip them all	3136	# if we are delayed by four ticks or more, skip them all
2404	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3137	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2405		3138
2406	$TICK_WATCHER->at ($NEXT_TICK);	3139	$TICK_WATCHER->at ($NEXT_TICK);
2407	$TICK_WATCHER->start;	3140	$TICK_WATCHER->start;
		3141
		3142	$LOAD = ($NOW - $tick_start) / $TICK;
		3143	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3144
		3145	_post_tick;
		3146
		3147
2408	},	3148	},
2409	);	3149	);
2410		3150
		3151	{
		3152	BDB::max_poll_time $TICK * 0.1;
		3153	$BDB_POLL_WATCHER = Event->io (
		3154	reentrant => 0,
		3155	fd => BDB::poll_fileno,
		3156	poll => 'r',
		3157	prio => 0,
		3158	data => WF_AUTOCANCEL,
		3159	cb => \&BDB::poll_cb,
		3160	);
		3161	BDB::min_parallel 8;
		3162
		3163	BDB::set_sync_prepare {
		3164	my $status;
		3165	my $current = $Coro::current;
		3166	(
		3167	sub {
		3168	$status = $!;
		3169	$current->ready; undef $current;
		3170	},
		3171	sub {
		3172	Coro::schedule while defined $current;
		3173	$! = $status;
		3174	},
		3175	)
		3176	};
		3177
		3178	unless ($DB_ENV) {
		3179	$DB_ENV = BDB::db_env_create;
		3180
		3181	cf::sync_job {
		3182	eval {
		3183	BDB::db_env_open
		3184	$DB_ENV,
		3185	$BDBDIR,
		3186	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3187	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3188	0666;
		3189
		3190	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3191
		3192	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3193	$DB_ENV->set_lk_detect;
		3194	};
		3195
		3196	cf::cleanup "db_env_open(db): $@" if $@;
		3197	};
		3198	}
		3199	}
		3200
		3201	{
		3202	IO::AIO::min_parallel 8;
		3203
		3204	undef $Coro::AIO::WATCHER;
2411	IO::AIO::max_poll_time $TICK * 0.2;	3205	IO::AIO::max_poll_time $TICK * 0.1;
2412
2413	$AIO_POLL_WATCHER = Event->io (	3206	$AIO_POLL_WATCHER = Event->io (
2414	fd => IO::AIO::poll_fileno,	3207	reentrant => 0,
2415	poll => 'r',
2416	prio => 5,
2417	data => WF_AUTOCANCEL,
2418	cb => \&IO::AIO::poll_cb,
2419	);
2420
2421	$WRITE_RUNTIME_WATCHER = Event->timer (
2422	data => WF_AUTOCANCEL,	3208	data => WF_AUTOCANCEL,
2423	after => 0,	3209	fd => IO::AIO::poll_fileno,
2424	interval => 10,	3210	poll => 'r',
2425	cb => sub {	3211	prio => 6,
2426	(Coro::unblock_sub {	3212	cb => \&IO::AIO::poll_cb,
2427	write_runtime	3213	);
2428	or warn "ERROR: unable to write runtime file: $!";	3214	}
		3215
		3216	my $_log_backtrace;
		3217
		3218	sub _log_backtrace {
		3219	my ($msg, @addr) = @_;
		3220
		3221	$msg =~ s/\n//;
		3222
		3223	# limit the # of concurrent backtraces
		3224	if ($_log_backtrace < 2) {
		3225	++$_log_backtrace;
		3226	async {
		3227	my @bt = fork_call {
		3228	@addr = map { sprintf "%x", $_ } @addr;
		3229	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3230	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3231	or die "addr2line: $!";
		3232
		3233	my @funcs;
		3234	my @res = <$fh>;
		3235	chomp for @res;
		3236	while (@res) {
		3237	my ($func, $line) = splice @res, 0, 2, ();
		3238	push @funcs, "[$func] $line";
		3239	}
		3240
		3241	@funcs
		3242	};
		3243
		3244	LOG llevInfo, "[ABT] $msg\n";
		3245	LOG llevInfo, "[ABT] $_\n" for @bt;
		3246	--$_log_backtrace;
2429	})->();	3247	};
		3248	} else {
		3249	LOG llevInfo, "[ABT] $msg\n";
		3250	LOG llevInfo, "[ABT] [suppressed]\n";
2430	},	3251	}
2431	);	3252	}
		3253
		3254	# load additional modules
		3255	use cf::pod;
2432		3256
2433	END { cf::emergency_save }	3257	END { cf::emergency_save }
2434		3258
2435	1	3259	1
2436		3260

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