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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.293 by root, Tue Jul 3 05:14:15 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		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	s/^\s+//;
		1420	s/\s+$//;
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
1081	=item $player->ext_reply ($msgid, $msgtype, %msg)	1430	=item $player->ext_reply ($msgid, %msg)
1082		1431
1083	Sends an ext reply to the player.	1432	Sends an ext reply to the player.
1084		1433
1085	=cut	1434	=cut
1086		1435
1087	sub ext_reply($$$%) {	1436	sub ext_reply($$%) {
1088	my ($self, $id, %msg) = @_;	1437	my ($self, $id, %msg) = @_;
1089		1438
1090	$msg{msgid} = $id;	1439	$msg{msgid} = $id;
1091		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1092	$self->send ("ext " . cf::to_json \%msg);
1093	}	1441	}
1094		1442
1095	package cf;	1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
		1470	my ($path) = @_;
		1471
		1472	my ($match, $specificity);
		1473
		1474	for my $region (list) {
		1475	if ($region->match && $path =~ $region->match) {
		1476	($match, $specificity) = ($region, $region->specificity)
		1477	if $region->specificity > $specificity;
		1478	}
		1479	}
		1480
		1481	$match
		1482	}
1096		1483
1097	=back	1484	=back
1098
1099		1485
1100	=head3 cf::map	1486	=head3 cf::map
1101		1487
1102	=over 4	1488	=over 4
1103		1489
…		…
1107		1493
1108	use Fcntl;	1494	use Fcntl;
1109	use Coro::AIO;	1495	use Coro::AIO;
1110		1496
1111	use overload	1497	use overload
1112	'""' => \&as_string;	1498	'""' => \&as_string,
		1499	fallback => 1;
1113		1500
1114	our $MAX_RESET = 3600;	1501	our $MAX_RESET = 3600;
1115	our $DEFAULT_RESET = 3000;	1502	our $DEFAULT_RESET = 3000;
1116		1503
1117	sub generate_random_map {	1504	sub generate_random_map {
1118	my ($self, $rmp) = @_;	1505	my ($self, $rmp) = @_;
1119
1120	# mit "rum" bekleckern, nicht	1506	# mit "rum" bekleckern, nicht
1121	$self->_create_random_map (	1507	$self->_create_random_map (
1122	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1508	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1509	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1124	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1510	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1131	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1517	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132	(cf::region::find $rmp->{region}), $rmp->{custom}	1518	(cf::region::find $rmp->{region}), $rmp->{custom}
1133	)	1519	)
1134	}	1520	}
1135		1521
		1522	=item cf::map->register ($regex, $prio)
		1523
		1524	Register a handler for the map path matching the given regex at the
		1525	givne priority (higher is better, built-in handlers have priority 0, the
		1526	default).
		1527
		1528	=cut
		1529
1136	sub register {	1530	sub register {
1137	my (undef, $regex) = @_;	1531	my (undef, $regex, $prio) = @_;
1138	my $pkg = caller;	1532	my $pkg = caller;
1139		1533
1140	no strict;	1534	no strict;
1141	push @{"$pkg\::ISA"}, __PACKAGE__;	1535	push @{"$pkg\::ISA"}, __PACKAGE__;
1142		1536
1143	$EXT_MAP{$pkg} = qr<$regex>;	1537	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144	}	1538	}
1145		1539
1146	# also paths starting with '/'	1540	# also paths starting with '/'
1147	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1541	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1542
		1543	sub thawer_merge {
		1544	my ($self, $merge) = @_;
		1545
		1546	# we have to keep some variables in memory intact
		1547	local $self->{path};
		1548	local $self->{load_path};
		1549
		1550	$self->SUPER::thawer_merge ($merge);
		1551	}
1148		1552
1149	sub normalise {	1553	sub normalise {
1150	my ($path, $base) = @_;	1554	my ($path, $base) = @_;
		1555
		1556	$path = "$path"; # make sure its a string
		1557
		1558	$path =~ s/\.map$//;
1151		1559
1152	# map plan:	1560	# map plan:
1153	#	1561	#
1154	# /! non-realised random map exit (special hack!)	1562	# /! non-realised random map exit (special hack!)
1155	# {... are special paths that are not being touched	1563	# {... are special paths that are not being touched
…		…
1183		1591
1184	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1592	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185		1593
1186	$path = normalise $path, $base;	1594	$path = normalise $path, $base;
1187		1595
1188	for my $pkg (keys %EXT_MAP) {	1596	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189	if ($path =~ $EXT_MAP{$pkg}) {	1597	if ($path =~ $EXT_MAP{$pkg}[1]) {
1190	my $self = bless cf::map::new, $pkg;	1598	my $self = bless cf::map::new, $pkg;
1191	$self->{path} = $path; $self->path ($path);	1599	$self->{path} = $path; $self->path ($path);
1192	$self->init; # pass $1 etc.	1600	$self->init; # pass $1 etc.
1193	return $self;	1601	return $self;
1194	}	1602	}
1195	}	1603	}
1196		1604
1197	Carp::carp "unable to resolve path '$path'.";	1605	Carp::carp "unable to resolve path '$path' (base '$base').";
1198	()	1606	()
1199	}	1607	}
1200		1608
1201	sub init {	1609	sub init {
1202	my ($self) = @_;	1610	my ($self) = @_;
…		…
1217		1625
1218	# the original (read-only) location	1626	# the original (read-only) location
1219	sub load_path {	1627	sub load_path {
1220	my ($self) = @_;	1628	my ($self) = @_;
1221		1629
1222	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1630	"$MAPDIR/$self->{path}.map"
1223	}	1631	}
1224		1632
1225	# the temporary/swap location	1633	# the temporary/swap location
1226	sub save_path {	1634	sub save_path {
1227	my ($self) = @_;	1635	my ($self) = @_;
1228		1636
1229	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1230	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1638	"$TMPDIR/$path.map"
1231	}	1639	}
1232		1640
1233	# the unique path, undef == no special unique path	1641	# the unique path, undef == no special unique path
1234	sub uniq_path {	1642	sub uniq_path {
1235	my ($self) = @_;	1643	my ($self) = @_;
1236		1644
1237	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1238	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1646	"$UNIQUEDIR/$path"
1239	}	1647	}
1240		1648
1241	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1242	# all maps in C++...	1650	# all maps in C++...
1243	sub change_all_map_light {	1651	sub change_all_map_light {
…		…
1245		1653
1246	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1247	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
1248	}	1656	}
1249		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
		1664	}
		1665
1250	sub unlink_save {	1666	sub unlink_save {
1251	my ($self) = @_;	1667	my ($self) = @_;
1252		1668
1253	utf8::encode (my $save = $self->save_path);	1669	utf8::encode (my $save = $self->save_path);
1254	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1670	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1671	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256	}	1672	}
1257		1673
1258	sub load_header_from($) {	1674	sub load_header_from($) {
1259	my ($self, $path) = @_;	1675	my ($self, $path) = @_;
1260		1676
1261	utf8::encode $path;	1677	utf8::encode $path;
1262	aio_open $path, O_RDONLY, 0	1678	#aio_open $path, O_RDONLY, 0
1263	or return;	1679	# or return;
1264		1680
1265	$self->_load_header ($path)	1681	$self->_load_header ($path)
1266	or return;	1682	or return;
1267		1683
1268	$self->{load_path} = $path;	1684	$self->{load_path} = $path;
1269		1685
1270	1	1686	1
1271	}	1687	}
1272		1688
1273	sub load_orig {	1689	sub load_header_orig {
1274	my ($self) = @_;	1690	my ($self) = @_;
1275		1691
1276	$self->load_header_from ($self->load_path)	1692	$self->load_header_from ($self->load_path)
1277	}	1693	}
1278		1694
1279	sub load_temp {	1695	sub load_header_temp {
1280	my ($self) = @_;	1696	my ($self) = @_;
1281		1697
1282	$self->load_header_from ($self->save_path)	1698	$self->load_header_from ($self->save_path)
		1699	}
		1700
		1701	sub prepare_temp {
		1702	my ($self) = @_;
		1703
		1704	$self->last_access ((delete $self->{last_access})
		1705	|| $cf::RUNTIME); #d#
		1706	# safety
		1707	$self->{instantiate_time} = $cf::RUNTIME
		1708	if $self->{instantiate_time} > $cf::RUNTIME;
		1709	}
		1710
		1711	sub prepare_orig {
		1712	my ($self) = @_;
		1713
		1714	$self->{load_original} = 1;
		1715	$self->{instantiate_time} = $cf::RUNTIME;
		1716	$self->last_access ($cf::RUNTIME);
		1717	$self->instantiate;
1283	}	1718	}
1284		1719
1285	sub load_header {	1720	sub load_header {
1286	my ($self) = @_;	1721	my ($self) = @_;
1287		1722
1288	if ($self->load_temp) {	1723	if ($self->load_header_temp) {
1289	$self->last_access ((delete $self->{last_access})	1724	$self->prepare_temp;
1290	|| $cf::RUNTIME); #d#
1291	# safety
1292	$self->{instantiate_time} = $cf::RUNTIME
1293	if $self->{instantiate_time} > $cf::RUNTIME;
1294	} else {	1725	} else {
1295	$self->load_orig	1726	$self->load_header_orig
1296	or return;	1727	or return;
1297		1728	$self->prepare_orig;
1298	$self->{load_original} = 1;
1299	$self->{instantiate_time} = $cf::RUNTIME;
1300	$self->last_access ($cf::RUNTIME);
1301	$self->instantiate;
1302	}	1729	}
		1730
		1731	$self->{deny_reset} = 1
		1732	if $self->no_reset;
		1733
		1734	$self->default_region (cf::region::find_by_path $self->{path})
		1735	unless $self->default_region;
1303		1736
1304	1	1737	1
1305	}	1738	}
1306		1739
1307	sub find;	1740	sub find;
…		…
1320	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1321		1754
1322	$map->load_header	1755	$map->load_header
1323	or return;	1756	or return;
1324		1757
1325	if ($map->should_reset) {	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1759	# doing this can freeze the server in a sync job, obviously
		1760	#$cf::WAIT_FOR_TICK->wait;
1326	$map->reset;	1761	$map->reset;
1327	undef $guard;	1762	undef $guard;
1328	$map = find $path	1763	return find $path;
1329	or return;
1330	}	1764	}
1331		1765
1332	$cf::MAP{$path} = $map	1766	$cf::MAP{$path} = $map
1333	}	1767	}
1334	}	1768	}
		1769
		1770	sub pre_load { }
		1771	sub post_load { }
1335		1772
1336	sub load {	1773	sub load {
1337	my ($self) = @_;	1774	my ($self) = @_;
1338		1775
		1776	local $self->{deny_reset} = 1; # loading can take a long time
		1777
1339	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1340	my $guard = cf::lock_acquire "map_load:$path";	1781	my $guard = cf::lock_acquire "map_load:$path";
1341		1782
1342	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1343		1784
1344	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1345		1786
1346	$self->alloc;	1787	$self->alloc;
1347	$self->_load_objects ($self->{load_path}, 1)
1348	or return;
1349		1788
1350	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1789	$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;	1790	Coro::cede;
1371	$self->set_darkness_map;	1791
		1792	$self->_load_objects ($self->{load_path}, 1)
		1793	or return;
		1794
		1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1796	if delete $self->{load_original};
		1797
		1798	if (my $uniq = $self->uniq_path) {
		1799	utf8::encode $uniq;
		1800	if (aio_open $uniq, O_RDONLY, 0) {
		1801	$self->clear_unique_items;
		1802	$self->_load_objects ($uniq, 0);
		1803	}
		1804	}
		1805
		1806	Coro::cede;
		1807	# now do the right thing for maps
		1808	$self->link_multipart_objects;
1372	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1373	unless $self->difficulty;	1810	unless $self->difficulty;
1374	Coro::cede;	1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1375	$self->activate;	1820	$self->activate;
1376	}	1821	}
1377		1822
1378	$self->in_memory (cf::MAP_IN_MEMORY);	1823	$self->in_memory (cf::MAP_IN_MEMORY);
		1824	}
		1825
		1826	$self->post_load;
1379	}	1827	}
1380		1828
1381	sub customise_for {	1829	sub customise_for {
1382	my ($self, $ob) = @_;	1830	my ($self, $ob) = @_;
1383		1831
1384	return find "~" . $ob->name . "/" . $self->{path}	1832	return find "~" . $ob->name . "/" . $self->{path}
1385	if $self->per_player;	1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
1386		1837
1387	$self	1838	$self
1388	}	1839	}
1389		1840
1390	# find and load all maps in the 3x3 area around a map	1841	# find and load all maps in the 3x3 area around a map
…		…
1422		1873
1423	cf::sync_job { $map->load };	1874	cf::sync_job { $map->load };
1424	}	1875	}
1425		1876
1426	our %MAP_PREFETCH;	1877	our %MAP_PREFETCH;
1427	our $MAP_PREFETCHER = Coro::async {	1878	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		1879
1440	sub find_async {	1880	sub find_async {
1441	my ($path, $origin) = @_;	1881	my ($path, $origin) = @_;
1442		1882
1443	$path = normalise $path, $origin && $origin->{path};	1883	$path = normalise $path, $origin && $origin->{path};
1444		1884
1445	if (my $map = $cf::MAP{$path}) {	1885	if (my $map = $cf::MAP{$path}) {
1446	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1886	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1447	}	1887	}
1448		1888
1449	$MAP_PREFETCH{$path} = 0;	1889	undef $MAP_PREFETCH{$path};
		1890	$MAP_PREFETCHER ||= cf::async {
		1891	while (%MAP_PREFETCH) {
		1892	for my $path (keys %MAP_PREFETCH) {
		1893	my $map = find $path
		1894	or next;
		1895	$map->load;
		1896
		1897	delete $MAP_PREFETCH{$path};
		1898	}
		1899	}
		1900	undef $MAP_PREFETCHER;
		1901	};
1450	$MAP_PREFETCHER->ready;	1902	$MAP_PREFETCHER->prio (6);
1451		1903
1452	()	1904	()
1453	}	1905	}
1454		1906
1455	sub save {	1907	sub save {
…		…
1500		1952
1501	sub reset_at {	1953	sub reset_at {
1502	my ($self) = @_;	1954	my ($self) = @_;
1503		1955
1504	# TODO: safety, remove and allow resettable per-player maps	1956	# 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};	1957	return 1e99 if $self->{deny_reset};
1507		1958
1508	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1509	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1510		1961
…		…
1515	my ($self) = @_;	1966	my ($self) = @_;
1516		1967
1517	$self->reset_at <= $cf::RUNTIME	1968	$self->reset_at <= $cf::RUNTIME
1518	}	1969	}
1519		1970
1520	sub rename {
1521	my ($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	$self->save;
1532	}
1533
1534	sub reset {	1971	sub reset {
1535	my ($self) = @_;	1972	my ($self) = @_;
1536		1973
1537	my $lock = cf::lock_acquire "map_data:$self->{path}";	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1538		1975
1539	return if $self->players;	1976	return if $self->players;
1540	return if $self->isa ("ext::map_per_player");#d#
1541		1977
1542	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
		1979
		1980	$self->in_memory (cf::MAP_SWAPPED);
		1981
		1982	# need to save uniques path
		1983	unless ($self->{deny_save}) {
		1984	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1985
		1986	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1987	if $uniq;
		1988	}
1543		1989
1544	delete $cf::MAP{$self->path};	1990	delete $cf::MAP{$self->path};
1545		1991
1546	$self->in_memory (cf::MAP_SWAPPED);
1547	$self->clear;	1992	$self->clear;
1548		1993
1549	$_->clear_links_to ($self) for values %cf::MAP;	1994	$_->clear_links_to ($self) for values %cf::MAP;
1550		1995
1551	$self->unlink_save;	1996	$self->unlink_save;
…		…
1555	my $nuke_counter = "aaaa";	2000	my $nuke_counter = "aaaa";
1556		2001
1557	sub nuke {	2002	sub nuke {
1558	my ($self) = @_;	2003	my ($self) = @_;
1559		2004
		2005	delete $cf::MAP{$self->path};
		2006
		2007	$self->unlink_save;
		2008
		2009	bless $self, "cf::map";
		2010	delete $self->{deny_reset};
1560	$self->{deny_save} = 1;	2011	$self->{deny_save} = 1;
1561	$self->reset_timeout (1);	2012	$self->reset_timeout (1);
1562	$self->rename ("{nuke}/" . ($nuke_counter++));	2013	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2014
		2015	$cf::MAP{$self->path} = $self;
		2016
1563	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
		2018	}
		2019
		2020	=item $maps = cf::map::tmp_maps
		2021
		2022	Returns an arrayref with all map paths of currently instantiated and saved
		2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
		2028	[
		2029	map {
		2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
		2036	}
		2037
		2038	=item $maps = cf::map::random_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
		2042
		2043	=cut
		2044
		2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
1564	}	2054	}
1565		2055
1566	=item cf::map::unique_maps	2056	=item cf::map::unique_maps
1567		2057
1568	Returns an arrayref of paths of all shared maps that have	2058	Returns an arrayref of paths of all shared maps that have
1569	instantiated unique items. May block.	2059	instantiated unique items. May block.
1570		2060
1571	=cut	2061	=cut
1572		2062
1573	sub unique_maps() {	2063	sub unique_maps() {
1574	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2064	[
1575	or return;	2065	map {
1576
1577	my @paths;
1578
1579	for (@$files) {
1580	utf8::decode $_;	2066	utf8::decode $_;
1581	next if /\.pst$/;
1582	next unless /^$PATH_SEP/o;
1583
1584	s/\.map$//;	2067	/\.map$/
1585	push @paths, $_;	2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $UNIQUEDIR or [] }
1586	}	2071	]
1587
1588	\@paths
1589	}	2072	}
1590		2073
1591	package cf;	2074	package cf;
1592		2075
1593	=back	2076	=back
…		…
1639		2122
1640	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1641		2124
1642	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1643	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1644	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1645	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1646	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1647	}	2144	}
1648	}	2145	}
1649		2146
1650	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1651		2148
…		…
1684	=cut	2181	=cut
1685		2182
1686	sub link_map {	2183	sub link_map {
1687	unless ($LINK_MAP) {	2184	unless ($LINK_MAP) {
1688	$LINK_MAP = cf::map::find "{link}"	2185	$LINK_MAP = cf::map::find "{link}"
1689	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2186	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690	$LINK_MAP->load;	2187	$LINK_MAP->load;
1691	}	2188	}
1692		2189
1693	$LINK_MAP	2190	$LINK_MAP
1694	}	2191	}
…		…
1699	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1700		2197
1701	return if UNIVERSAL::isa $self->map, "ext::map_link";	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1702		2199
1703	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1705		2202
1706	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1707	}	2204	}
1708		2205
1709	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1710	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1711		2210
1712	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1713		2212
1714	unless ($map) {	2213	unless ($map) {
1715	# restore original map position	2214	# restore original map position
…		…
1733	$map->load;	2232	$map->load;
1734	$map->load_diag;	2233	$map->load_diag;
1735		2234
1736	return unless $self->contr->active;	2235	return unless $self->contr->active;
1737	$self->activate_recursive;	2236	$self->activate_recursive;
		2237
		2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1738	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1739	}	2240	}
1740		2241
1741	cf::player->attach (
1742	on_logout => sub {
1743	my ($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)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1774		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1775	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1776		2252
1777	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1778	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1779		2258
1780	$self->enter_link;	2259	$self->enter_link;
1781		2260
1782	(async {	2261	(async {
		2262	my $map = eval {
1783	my $map = cf::map::find $path;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1784	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
1785		2267	$map = $check->($map) if $check && $map;
1786	# warn "entering ", $map->path, " at ($x, $y)\n"	2268	} else {
1787	# if $map;
1788
1789	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
1790		2271
		2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
		2278	}
		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1791	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1792	})->prio (1);	2284	})->prio (1);
1793	}	2285	}
1794		2286
1795	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1796		2288
…		…
1798		2290
1799	sub parse_random_map_params {	2291	sub parse_random_map_params {
1800	my ($spec) = @_;	2292	my ($spec) = @_;
1801		2293
1802	my $rmp = { # defaults	2294	my $rmp = { # defaults
1803	xsize => 10,	2295	xsize => (cf::rndm 15, 40),
1804	ysize => 10,	2296	ysize => (cf::rndm 15, 40),
		2297	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2298	#layout => string,
1805	};	2299	};
1806		2300
1807	for (split /\n/, $spec) {	2301	for (split /\n/, $spec) {
1808	my ($k, $v) = split /\s+/, $_, 2;	2302	my ($k, $v) = split /\s+/, $_, 2;
1809		2303
…		…
1813	$rmp	2307	$rmp
1814	}	2308	}
1815		2309
1816	sub prepare_random_map {	2310	sub prepare_random_map {
1817	my ($exit) = @_;	2311	my ($exit) = @_;
		2312
		2313	my $guard = cf::lock_acquire "exit_prepare:$exit";
1818		2314
1819	# all this does is basically replace the /! path by	2315	# all this does is basically replace the /! path by
1820	# a new random map path (?random/...) with a seed	2316	# a new random map path (?random/...) with a seed
1821	# that depends on the exit object	2317	# that depends on the exit object
1822		2318
1823	my $rmp = parse_random_map_params $exit->msg;	2319	my $rmp = parse_random_map_params $exit->msg;
1824		2320
1825	if ($exit->map) {	2321	if ($exit->map) {
1826	$rmp->{region} = $exit->map->region_name;	2322	$rmp->{region} = $exit->region->name;
1827	$rmp->{origin_map} = $exit->map->path;	2323	$rmp->{origin_map} = $exit->map->path;
1828	$rmp->{origin_x} = $exit->x;	2324	$rmp->{origin_x} = $exit->x;
1829	$rmp->{origin_y} = $exit->y;	2325	$rmp->{origin_y} = $exit->y;
1830	}	2326	}
1831		2327
1832	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1833		2329
1834	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1835	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
		2332	my $meta = "$RANDOMDIR/$md5.meta";
1836		2333
1837	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
		2336	undef $fh;
		2337	aio_rename "$meta~", $meta;
1839		2338
1840	$exit->slaying ("?random/$md5");	2339	$exit->slaying ("?random/$md5");
1841	$exit->msg (undef);	2340	$exit->msg (undef);
1842	}	2341	}
1843	}	2342	}
1844		2343
1845	sub cf::object::player::enter_exit {	2344	sub cf::object::player::enter_exit {
1846	my ($self, $exit) = @_;	2345	my ($self, $exit) = @_;
1847		2346
1848	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
		2348
		2349	if ($exit->slaying eq "/!") {
		2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
		2353	cf::sync_job { prepare_random_map $exit };
		2354	}
		2355
		2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2357	my $hp = $exit->stats->hp;
		2358	my $sp = $exit->stats->sp;
1849		2359
1850	$self->enter_link;	2360	$self->enter_link;
1851		2361
1852	(async {	2362	(async {
1853	$self->deactivate_recursive; # just to be sure	2363	$self->deactivate_recursive; # just to be sure
1854	unless (eval {	2364	unless (eval {
1855	prepare_random_map $exit	2365	$self->goto ($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		2366
1861	1;	2367	1;
1862	}) {	2368	}) {
1863	$self->message ("Something went wrong deep within the crossfire server. "	2369	$self->message ("Something went wrong deep within the crossfire server. "
1864	. "I'll try to bring you back to the map you were before. "	2370	. "I'll try to bring you back to the map you were before. "
1865	. "Please report this to the dungeon master!",	2371	. "Please report this to the dungeon master!",
1866	cf::NDI_UNIQUE | cf::NDI_RED);	2372	cf::NDI_UNIQUE | cf::NDI_RED);
1867		2373
1868	warn "ERROR in enter_exit: $@";	2374	warn "ERROR in enter_exit: $@";
1869	$self->leave_link;	2375	$self->leave_link;
1870	}	2376	}
1871	})->prio (1);	2377	})->prio (1);
…		…
1884		2390
1885	sub cf::client::send_drawinfo {	2391	sub cf::client::send_drawinfo {
1886	my ($self, $text, $flags) = @_;	2392	my ($self, $text, $flags) = @_;
1887		2393
1888	utf8::encode $text;	2394	utf8::encode $text;
1889	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2395	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890	}	2396	}
1891		2397
		2398	=item $client->send_msg ($color, $type, $msg, [extra...])
		2399
		2400	Send a drawinfo or msg packet to the client, formatting the msg for the
		2401	client if neccessary. C<$type> should be a string identifying the type of
		2402	the message, with C<log> being the default. If C<$color> is negative, suppress
		2403	the message unless the client supports the msg packet.
		2404
		2405	=cut
		2406
		2407	sub cf::client::send_msg {
		2408	my ($self, $color, $type, $msg, @extra) = @_;
		2409
		2410	$msg = $self->pl->expand_cfpod ($msg);
		2411
		2412	if ($self->can_msg) {
		2413	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2414	} else {
		2415	# replace some tags by gcfclient-compatible ones
		2416	for ($msg) {
		2417	1 while
		2418	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2419	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2420	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2421	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2422	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2423	}
		2424
		2425	if ($color >= 0) {
		2426	if (0 && $msg =~ /\[/) {
		2427	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2428	} else {
		2429	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2430	$self->send_packet ("drawinfo $color $msg")
		2431	}
		2432	}
		2433	}
		2434	}
		2435
		2436	=item $client->ext_event ($type, %msg)
		2437
		2438	Sends an ext event to the client.
		2439
		2440	=cut
		2441
		2442	sub cf::client::ext_event($$%) {
		2443	my ($self, $type, %msg) = @_;
		2444
		2445	$msg{msgtype} = "event_$type";
		2446	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2447	}
1892		2448
1893	=item $success = $client->query ($flags, "text", \&cb)	2449	=item $success = $client->query ($flags, "text", \&cb)
1894		2450
1895	Queues a query to the client, calling the given callback with	2451	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>,	2452	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>.	2453	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1898		2454
1899	Queries can fail, so check the return code. Or don't, as queries will become	2455	Queries can fail, so check the return code. Or don't, as queries will
1900	reliable at some point in the future.	2456	become reliable at some point in the future.
1901		2457
1902	=cut	2458	=cut
1903		2459
1904	sub cf::client::query {	2460	sub cf::client::query {
1905	my ($self, $flags, $text, $cb) = @_;	2461	my ($self, $flags, $text, $cb) = @_;
…		…
1913	utf8::encode $text;	2469	utf8::encode $text;
1914	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2470	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1915		2471
1916	$self->send_packet ($self->{query_queue}[0][0])	2472	$self->send_packet ($self->{query_queue}[0][0])
1917	if @{ $self->{query_queue} } == 1;	2473	if @{ $self->{query_queue} } == 1;
		2474
		2475	1
1918	}	2476	}
1919		2477
1920	cf::client->attach (	2478	cf::client->attach (
		2479	on_connect => sub {
		2480	my ($ns) = @_;
		2481
		2482	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2483	},
1921	on_reply => sub {	2484	on_reply => sub {
1922	my ($ns, $msg) = @_;	2485	my ($ns, $msg) = @_;
1923		2486
1924	# this weird shuffling is so that direct followup queries	2487	# this weird shuffling is so that direct followup queries
1925	# get handled first	2488	# get handled first
1926	my $queue = delete $ns->{query_queue}	2489	my $queue = delete $ns->{query_queue}
1927	or return; # be conservative, not sure how that can happen, but we saw a crash here	2490	or return; # be conservative, not sure how that can happen, but we saw a crash here
1928		2491
1929	(shift @$queue)->[1]->($msg);	2492	(shift @$queue)->[1]->($msg);
		2493	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930		2494
1931	push @{ $ns->{query_queue} }, @$queue;	2495	push @{ $ns->{query_queue} }, @$queue;
1932		2496
1933	if (@{ $ns->{query_queue} } == @$queue) {	2497	if (@{ $ns->{query_queue} } == @$queue) {
1934	if (@$queue) {	2498	if (@$queue) {
…		…
1936	} else {	2500	} else {
1937	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2501	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1938	}	2502	}
1939	}	2503	}
1940	},	2504	},
		2505	on_exticmd => sub {
		2506	my ($ns, $buf) = @_;
		2507
		2508	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2509
		2510	if (ref $msg) {
		2511	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2512	if (my %reply = $cb->($ns, $msg)) {
		2513	$reply{msgid} = $msg->{msgid};
		2514	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2515	}
		2516	}
		2517	} else {
		2518	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2519	}
		2520
		2521	cf::override;
		2522	},
1941	);	2523	);
1942		2524
1943	=item $client->async (\&cb)	2525	=item $client->async (\&cb)
1944		2526
1945	Create a new coroutine, running the specified callback. The coroutine will	2527	Create a new coroutine, running the specified callback. The coroutine will
…		…
1992		2574
1993	# here we export the classes and methods available to script code	2575	# here we export the classes and methods available to script code
1994		2576
1995	=pod	2577	=pod
1996		2578
1997	The following fucntions and emthods are available within a safe environment:	2579	The following functions and methods are available within a safe environment:
1998		2580
1999	cf::object contr pay_amount pay_player map	2581	cf::object contr pay_amount pay_player map
2000	cf::object::player player	2582	cf::object::player player
2001	cf::player peaceful	2583	cf::player peaceful
2002	cf::map trigger	2584	cf::map trigger
…		…
2083	=back	2665	=back
2084		2666
2085	=cut	2667	=cut
2086		2668
2087	#############################################################################	2669	#############################################################################
		2670	# the server's init and main functions
2088		2671
2089	=head2 EXTENSION DATABASE SUPPORT	2672	sub load_facedata($) {
		2673	my ($path) = @_;
2090		2674
2091	Crossfire maintains a very simple database for extension use. It can	2675	warn "loading facedata from $path\n";
2092	currently store anything that can be serialised using Storable, which
2093	excludes objects.
2094		2676
2095	The parameter C<$family> should best start with the name of the extension	2677	my $facedata;
2096	using it, it should be unique.	2678	0 < aio_load $path, $facedata
		2679	or die "$path: $!";
2097		2680
2098	=over 4	2681	$facedata = Coro::Storable::thaw $facedata;
2099		2682
2100	=item $hashref = cf::db_get $family	2683	$facedata->{version} == 2
		2684	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		2685
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	}	2686	{
		2687	my $faces = $facedata->{faceinfo};
2138		2688
2139	my $pid;	2689	while (my ($face, $info) = each %$faces) {
2140		2690	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2141	sub db_save() {	2691	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2142	waitpid $pid, 0 if $pid;	2692	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2143	if (0 == ($pid = fork)) {	2693	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2144	$DB->{_meta}{version} = 1;	2694	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]} = $_[1];
2178	}
2179	db_dirty;
2180	}
2181
2182	cf::global->attach (
2183	prio => 10000,
2184	on_cleanup => sub {
2185	db_sync;
2186	},	2695	}
2187	);
2188	}
2189		2696
2190	#############################################################################	2697	while (my ($face, $info) = each %$faces) {
2191	# the server's main()	2698	next unless $info->{smooth};
		2699	my $idx = cf::face::find $face
		2700	or next;
		2701	if (my $smooth = cf::face::find $info->{smooth}) {
		2702	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2703	} else {
		2704	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2705	}
		2706	Coro::cede;
		2707	}
		2708	}
		2709
		2710	{
		2711	my $anims = $facedata->{animinfo};
		2712
		2713	while (my ($anim, $info) = each %$anims) {
		2714	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2715	Coro::cede;
		2716	}
		2717
		2718	cf::anim::invalidate_all; # d'oh
		2719	}
		2720
		2721	1
		2722	}
		2723
		2724	sub reload_regions {
		2725	load_resource_file "$MAPDIR/regions"
		2726	or die "unable to load regions file\n";
		2727	}
		2728
		2729	sub reload_facedata {
		2730	load_facedata "$DATADIR/facedata"
		2731	or die "unable to load facedata\n";
		2732	}
		2733
		2734	sub reload_archetypes {
		2735	load_resource_file "$DATADIR/archetypes"
		2736	or die "unable to load archetypes\n";
		2737	#d# NEED to laod twice to resolve forward references
		2738	# this really needs to be done in an extra post-pass
		2739	# (which needs to be synchronous, so solve it differently)
		2740	load_resource_file "$DATADIR/archetypes"
		2741	or die "unable to load archetypes\n";
		2742	}
		2743
		2744	sub reload_treasures {
		2745	load_resource_file "$DATADIR/treasures"
		2746	or die "unable to load treasurelists\n";
		2747	}
		2748
		2749	sub reload_resources {
		2750	warn "reloading resource files...\n";
		2751
		2752	reload_regions;
		2753	reload_facedata;
		2754	#reload_archetypes;#d#
		2755	reload_archetypes;
		2756	reload_treasures;
		2757
		2758	warn "finished reloading resource files\n";
		2759	}
		2760
		2761	sub init {
		2762	reload_resources;
		2763	}
2192		2764
2193	sub cfg_load {	2765	sub cfg_load {
2194	open my $fh, "<:utf8", cf::confdir . "/config"	2766	open my $fh, "<:utf8", "$CONFDIR/config"
2195	or return;	2767	or return;
2196		2768
2197	local $/;	2769	local $/;
2198	*CFG = YAML::Syck::Load <$fh>;	2770	*CFG = YAML::Syck::Load <$fh>;
2199		2771
…		…
2213		2785
2214	sub main {	2786	sub main {
2215	# we must not ever block the main coroutine	2787	# we must not ever block the main coroutine
2216	local $Coro::idle = sub {	2788	local $Coro::idle = sub {
2217	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2789	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2790	(async {
2218	async { Event::one_event };	2791	Event::one_event;
		2792	})->prio (Coro::PRIO_MAX);
2219	};	2793	};
2220		2794
2221	cfg_load;	2795	cfg_load;
2222	db_load;	2796	db_init;
2223	load_extensions;	2797	load_extensions;
		2798
		2799	$TICK_WATCHER->start;
2224	Event::loop;	2800	Event::loop;
2225	}	2801	}
2226		2802
2227	#############################################################################	2803	#############################################################################
2228	# initialisation and cleanup	2804	# initialisation and cleanup
2229		2805
2230	# install some emergency cleanup handlers	2806	# install some emergency cleanup handlers
2231	BEGIN {	2807	BEGIN {
2232	for my $signal (qw(INT HUP TERM)) {	2808	for my $signal (qw(INT HUP TERM)) {
2233	Event->signal (	2809	Event->signal (
		2810	reentrant => 0,
2234	data => WF_AUTOCANCEL,	2811	data => WF_AUTOCANCEL,
2235	signal => $signal,	2812	signal => $signal,
		2813	prio => 0,
2236	cb => sub {	2814	cb => sub {
2237	cf::cleanup "SIG$signal";	2815	cf::cleanup "SIG$signal";
2238	},	2816	},
2239	);	2817	);
2240	}	2818	}
		2819	}
		2820
		2821	sub write_runtime {
		2822	my $runtime = "$LOCALDIR/runtime";
		2823
		2824	# first touch the runtime file to show we are still running:
		2825	# the fsync below can take a very very long time.
		2826
		2827	IO::AIO::aio_utime $runtime, undef, undef;
		2828
		2829	my $guard = cf::lock_acquire "write_runtime";
		2830
		2831	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2832	or return;
		2833
		2834	my $value = $cf::RUNTIME + 90 + 10;
		2835	# 10 is the runtime save interval, for a monotonic clock
		2836	# 60 allows for the watchdog to kill the server.
		2837
		2838	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2839	and return;
		2840
		2841	# always fsync - this file is important
		2842	aio_fsync $fh
		2843	and return;
		2844
		2845	# touch it again to show we are up-to-date
		2846	aio_utime $fh, undef, undef;
		2847
		2848	close $fh
		2849	or return;
		2850
		2851	aio_rename "$runtime~", $runtime
		2852	and return;
		2853
		2854	warn "runtime file written.\n";
		2855
		2856	1
2241	}	2857	}
2242		2858
2243	sub emergency_save() {	2859	sub emergency_save() {
2244	my $freeze_guard = cf::freeze_mainloop;	2860	my $freeze_guard = cf::freeze_mainloop;
2245		2861
…		…
2262	my $map = $cf::MAP{$path} or next;	2878	my $map = $cf::MAP{$path} or next;
2263	$map->valid or next;	2879	$map->valid or next;
2264	$map->save;	2880	$map->save;
2265	}	2881	}
2266	warn "end emergency map save\n";	2882	warn "end emergency map save\n";
		2883
		2884	warn "begin emergency database checkpoint\n";
		2885	BDB::db_env_txn_checkpoint $DB_ENV;
		2886	warn "end emergency database checkpoint\n";
2267	};	2887	};
2268		2888
2269	warn "leave emergency perl save\n";	2889	warn "leave emergency perl save\n";
2270	}	2890	}
2271		2891
		2892	sub post_cleanup {
		2893	my ($make_core) = @_;
		2894
		2895	warn Carp::longmess "post_cleanup backtrace"
		2896	if $make_core;
		2897	}
		2898
2272	sub reload() {	2899	sub do_reload_perl() {
2273	# can/must only be called in main	2900	# can/must only be called in main
2274	if ($Coro::current != $Coro::main) {	2901	if ($Coro::current != $Coro::main) {
2275	warn "can only reload from main coroutine\n";	2902	warn "can only reload from main coroutine";
2276	return;	2903	return;
2277	}	2904	}
2278		2905
2279	warn "reloading...";	2906	warn "reloading...";
2280		2907
2281	warn "freezing server";	2908	warn "entering sync_job";
2282	my $guard = freeze_mainloop;	2909
		2910	cf::sync_job {
		2911	cf::write_runtime; # external watchdog should not bark
2283	cf::emergency_save;	2912	cf::emergency_save;
		2913	cf::write_runtime; # external watchdog should not bark
2284		2914
2285	warn "sync database to disk";	2915	warn "syncing database to disk";
2286	cf::db_sync;	2916	BDB::db_env_txn_checkpoint $DB_ENV;
2287	IO::AIO::flush;
2288		2917
2289	eval {
2290	# if anything goes wrong in here, we should simply crash as we already saved	2918	# if anything goes wrong in here, we should simply crash as we already saved
2291		2919
2292	warn "cancel all watchers";	2920	warn "cancelling all WF_AUTOCANCEL watchers";
2293	for (Event::all_watchers) {	2921	for (Event::all_watchers) {
2294	$_->cancel if $_->data & WF_AUTOCANCEL;	2922	$_->cancel if $_->data & WF_AUTOCANCEL;
2295	}	2923	}
2296		2924
		2925	warn "flushing outstanding aio requests";
		2926	for (;;) {
		2927	BDB::flush;
		2928	IO::AIO::flush;
		2929	Coro::cede;
		2930	last unless IO::AIO::nreqs || BDB::nreqs;
		2931	warn "iterate...";
		2932	}
		2933
		2934	++$RELOAD;
		2935
2297	warn "cancel all extension coros";	2936	warn "cancelling all extension coros";
2298	$_->cancel for values %EXT_CORO;	2937	$_->cancel for values %EXT_CORO;
2299	%EXT_CORO = ();	2938	%EXT_CORO = ();
2300		2939
2301	warn "remove commands";	2940	warn "removing commands";
2302	%COMMAND = ();	2941	%COMMAND = ();
2303		2942
2304	warn "remove ext commands";	2943	warn "removing ext/exti commands";
2305	%EXTCMD = ();	2944	%EXTCMD = ();
		2945	%EXTICMD = ();
2306		2946
2307	warn "unload/nuke all extensions";	2947	warn "unloading/nuking all extensions";
2308	for my $pkg (@EXTS) {	2948	for my $pkg (@EXTS) {
2309	warn "... unloading $pkg";	2949	warn "... unloading $pkg";
2310		2950
2311	if (my $cb = $pkg->can ("unload")) {	2951	if (my $cb = $pkg->can ("unload")) {
2312	eval {	2952	eval {
…		…
2317		2957
2318	warn "... nuking $pkg";	2958	warn "... nuking $pkg";
2319	Symbol::delete_package $pkg;	2959	Symbol::delete_package $pkg;
2320	}	2960	}
2321		2961
2322	warn "unload all perl modules loaded from $LIBDIR";	2962	warn "unloading all perl modules loaded from $LIBDIR";
2323	while (my ($k, $v) = each %INC) {	2963	while (my ($k, $v) = each %INC) {
2324	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2964	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325		2965
2326	warn "removing <$k>";	2966	warn "... unloading $k";
2327	delete $INC{$k};	2967	delete $INC{$k};
2328		2968
2329	$k =~ s/\.pm$//;	2969	$k =~ s/\.pm$//;
2330	$k =~ s/\//::/g;	2970	$k =~ s/\//::/g;
2331		2971
…		…
2334	}	2974	}
2335		2975
2336	Symbol::delete_package $k;	2976	Symbol::delete_package $k;
2337	}	2977	}
2338		2978
2339	warn "get rid of safe::, as good as possible";	2979	warn "getting rid of safe::, as good as possible";
2340	Symbol::delete_package "safe::$_"	2980	Symbol::delete_package "safe::$_"
2341	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2981	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342		2982
2343	warn "unload cf.pm \"a bit\"";	2983	warn "unloading cf.pm \"a bit\"";
2344	delete $INC{"cf.pm"};	2984	delete $INC{"cf.pm"};
		2985	delete $INC{"cf/pod.pm"};
2345		2986
2346	# don't, removes xs symbols, too,	2987	# don't, removes xs symbols, too,
2347	# and global variables created in xs	2988	# and global variables created in xs
2348	#Symbol::delete_package __PACKAGE__;	2989	#Symbol::delete_package __PACKAGE__;
2349		2990
		2991	warn "unload completed, starting to reload now";
		2992
2350	warn "reloading cf.pm";	2993	warn "reloading cf.pm";
2351	require cf;	2994	require cf;
2352	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2995	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2353		2996
2354	warn "load config and database again";	2997	warn "loading config and database again";
2355	cf::cfg_load;	2998	cf::cfg_load;
2356	cf::db_load;
2357		2999
2358	warn "load extensions";	3000	warn "loading extensions";
2359	cf::load_extensions;	3001	cf::load_extensions;
2360		3002
2361	warn "reattach attachments to objects/players";	3003	warn "reattaching attachments to objects/players";
2362	_global_reattach;	3004	_global_reattach; # objects, sockets
2363	warn "reattach attachments to maps";	3005	warn "reattaching attachments to maps";
2364	reattach $_ for values %MAP;	3006	reattach $_ for values %MAP;
2365	};	3007	warn "reattaching attachments to players";
		3008	reattach $_ for values %PLAYER;
2366		3009
2367	if ($@) {	3010	warn "leaving sync_job";
		3011
		3012	1
		3013	} or do {
2368	warn $@;	3014	warn $@;
2369	warn "error while reloading, exiting.";	3015	warn "error while reloading, exiting.";
2370	exit 1;	3016	exit 1;
2371	}	3017	};
2372		3018
2373	warn "reloaded";	3019	warn "reloaded";
2374	};	3020	};
2375		3021
		3022	our $RELOAD_WATCHER; # used only during reload
		3023
		3024	sub reload_perl() {
		3025	# doing reload synchronously and two reloads happen back-to-back,
		3026	# coro crashes during coro_state_free->destroy here.
		3027
		3028	$RELOAD_WATCHER ||= Event->timer (
		3029	reentrant => 0,
		3030	after => 0,
		3031	data => WF_AUTOCANCEL,
		3032	cb => sub {
		3033	do_reload_perl;
		3034	undef $RELOAD_WATCHER;
		3035	},
		3036	);
		3037	}
		3038
2376	register_command "reload" => sub {	3039	register_command "reload" => sub {
2377	my ($who, $arg) = @_;	3040	my ($who, $arg) = @_;
2378		3041
2379	if ($who->flag (FLAG_WIZ)) {	3042	if ($who->flag (FLAG_WIZ)) {
2380	$who->message ("start of reload.");
2381	reload;
2382	$who->message ("end of reload.");	3043	$who->message ("reloading server.");
		3044	async { reload_perl };
2383	}	3045	}
2384	};	3046	};
2385		3047
2386	unshift @INC, $LIBDIR;	3048	unshift @INC, $LIBDIR;
2387		3049
		3050	my $bug_warning = 0;
		3051
		3052	our @WAIT_FOR_TICK;
		3053	our @WAIT_FOR_TICK_BEGIN;
		3054
		3055	sub wait_for_tick {
		3056	return unless $TICK_WATCHER->is_active;
		3057	return if $Coro::current == $Coro::main;
		3058
		3059	my $signal = new Coro::Signal;
		3060	push @WAIT_FOR_TICK, $signal;
		3061	$signal->wait;
		3062	}
		3063
		3064	sub wait_for_tick_begin {
		3065	return unless $TICK_WATCHER->is_active;
		3066	return if $Coro::current == $Coro::main;
		3067
		3068	my $signal = new Coro::Signal;
		3069	push @WAIT_FOR_TICK_BEGIN, $signal;
		3070	$signal->wait;
		3071	}
		3072
		3073	my $min = 1e6;#d#
		3074	my $avg = 10;
2388	$TICK_WATCHER = Event->timer (	3075	$TICK_WATCHER = Event->timer (
2389	reentrant => 0,	3076	reentrant => 0,
		3077	parked => 1,
2390	prio => 0,	3078	prio => 0,
2391	at => $NEXT_TICK || $TICK,	3079	at => $NEXT_TICK || $TICK,
2392	data => WF_AUTOCANCEL,	3080	data => WF_AUTOCANCEL,
2393	cb => sub {	3081	cb => sub {
		3082	if ($Coro::current != $Coro::main) {
		3083	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3084	unless ++$bug_warning > 10;
		3085	return;
		3086	}
		3087
2394	$NOW = Event::time;	3088	$NOW = $tick_start = Event::time;
2395		3089
2396	cf::server_tick; # one server iteration	3090	cf::server_tick; # one server iteration
		3091
		3092	0 && sync_job {#d#
		3093	for(1..10) {
		3094	my $t = Event::time;
		3095	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3096	or die;
		3097
		3098	$map->width (50);
		3099	$map->height (50);
		3100	$map->alloc;
		3101	$map->_load_objects ("/tmp/x.map", 1);
		3102	my $t = Event::time - $t;
		3103
		3104	#next unless $t < 0.0013;#d#
		3105	if ($t < $min) {
		3106	$min = $t;
		3107	}
		3108	$avg = $avg * 0.99 + $t * 0.01;
		3109	}
		3110	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3111	exit 0;
		3112	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3113	};
		3114
2397	$RUNTIME += $TICK;	3115	$RUNTIME += $TICK;
2398	$NEXT_TICK += $TICK;	3116	$NEXT_TICK += $TICK;
2399		3117
2400	$WAIT_FOR_TICK->broadcast;	3118	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2401	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3119	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3120	Coro::async_pool {
		3121	write_runtime
		3122	or warn "ERROR: unable to write runtime file: $!";
		3123	};
		3124	}
		3125
		3126	# my $AFTER = Event::time;
		3127	# warn $AFTER - $NOW;#d#
		3128
		3129	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3130	$sig->send;
		3131	}
		3132	while (my $sig = shift @WAIT_FOR_TICK) {
		3133	$sig->send;
		3134	}
		3135
		3136	$NOW = Event::time;
2402		3137
2403	# if we are delayed by four ticks or more, skip them all	3138	# if we are delayed by four ticks or more, skip them all
2404	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3139	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2405		3140
2406	$TICK_WATCHER->at ($NEXT_TICK);	3141	$TICK_WATCHER->at ($NEXT_TICK);
2407	$TICK_WATCHER->start;	3142	$TICK_WATCHER->start;
		3143
		3144	$LOAD = ($NOW - $tick_start) / $TICK;
		3145	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3146
		3147	_post_tick;
		3148
		3149
2408	},	3150	},
2409	);	3151	);
2410		3152
		3153	{
		3154	BDB::max_poll_time $TICK * 0.1;
		3155	$BDB_POLL_WATCHER = Event->io (
		3156	reentrant => 0,
		3157	fd => BDB::poll_fileno,
		3158	poll => 'r',
		3159	prio => 0,
		3160	data => WF_AUTOCANCEL,
		3161	cb => \&BDB::poll_cb,
		3162	);
		3163	BDB::min_parallel 8;
		3164
		3165	BDB::set_sync_prepare {
		3166	my $status;
		3167	my $current = $Coro::current;
		3168	(
		3169	sub {
		3170	$status = $!;
		3171	$current->ready; undef $current;
		3172	},
		3173	sub {
		3174	Coro::schedule while defined $current;
		3175	$! = $status;
		3176	},
		3177	)
		3178	};
		3179
		3180	unless ($DB_ENV) {
		3181	$DB_ENV = BDB::db_env_create;
		3182
		3183	cf::sync_job {
		3184	eval {
		3185	BDB::db_env_open
		3186	$DB_ENV,
		3187	$BDBDIR,
		3188	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3189	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3190	0666;
		3191
		3192	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3193
		3194	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3195	$DB_ENV->set_lk_detect;
		3196	};
		3197
		3198	cf::cleanup "db_env_open(db): $@" if $@;
		3199	};
		3200	}
		3201	}
		3202
		3203	{
		3204	IO::AIO::min_parallel 8;
		3205
		3206	undef $Coro::AIO::WATCHER;
2411	IO::AIO::max_poll_time $TICK * 0.2;	3207	IO::AIO::max_poll_time $TICK * 0.1;
2412
2413	$AIO_POLL_WATCHER = Event->io (	3208	$AIO_POLL_WATCHER = Event->io (
2414	fd => IO::AIO::poll_fileno,	3209	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,	3210	data => WF_AUTOCANCEL,
2423	after => 0,	3211	fd => IO::AIO::poll_fileno,
2424	interval => 10,	3212	poll => 'r',
2425	cb => sub {	3213	prio => 6,
2426	(Coro::unblock_sub {	3214	cb => \&IO::AIO::poll_cb,
2427	write_runtime	3215	);
2428	or warn "ERROR: unable to write runtime file: $!";	3216	}
		3217
		3218	my $_log_backtrace;
		3219
		3220	sub _log_backtrace {
		3221	my ($msg, @addr) = @_;
		3222
		3223	$msg =~ s/\n//;
		3224
		3225	# limit the # of concurrent backtraces
		3226	if ($_log_backtrace < 2) {
		3227	++$_log_backtrace;
		3228	async {
		3229	my @bt = fork_call {
		3230	@addr = map { sprintf "%x", $_ } @addr;
		3231	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3232	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3233	or die "addr2line: $!";
		3234
		3235	my @funcs;
		3236	my @res = <$fh>;
		3237	chomp for @res;
		3238	while (@res) {
		3239	my ($func, $line) = splice @res, 0, 2, ();
		3240	push @funcs, "[$func] $line";
		3241	}
		3242
		3243	@funcs
		3244	};
		3245
		3246	LOG llevInfo, "[ABT] $msg\n";
		3247	LOG llevInfo, "[ABT] $_\n" for @bt;
		3248	--$_log_backtrace;
2429	})->();	3249	};
		3250	} else {
		3251	LOG llevInfo, "[ABT] $msg\n";
		3252	LOG llevInfo, "[ABT] [suppressed]\n";
2430	},	3253	}
2431	);	3254	}
		3255
		3256	# load additional modules
		3257	use cf::pod;
2432		3258
2433	END { cf::emergency_save }	3259	END { cf::emergency_save }
2434		3260
2435	1	3261	1
2436		3262

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