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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.292 by root, Tue Jul 3 00:54:57 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
26		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
53		84
54	our %CFG;	85	our %CFG;
55		86
56	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	88	our $RUNTIME;
58		89
59	our %PLAYER; # all users	90	our %PLAYER; # all users
60	our %MAP; # all maps	91	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		93
67	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
70	binmode STDOUT;	101	binmode STDOUT;
71	binmode STDERR;	102	binmode STDERR;
72		103
73	# read virtual server time, if available	104	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
78	}	109	}
79		110
80	mkdir cf::localdir;	111	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		113
86	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
87		117
88	#############################################################################	118	#############################################################################
89		119
90	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
91		121
…		…
98	=item $cf::RUNTIME	128	=item $cf::RUNTIME
99		129
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	131	every server tick.
102		132
103	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		136
105	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
107		141
108	=item $cf::NOW	142	=item $cf::NOW
109		143
110	The time of the last (current) server tick.	144	The time of the last (current) server tick.
111		145
112	=item $cf::TICK	146	=item $cf::TICK
113		147
114	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
115		159
116	=item %cf::CFG	160	=item %cf::CFG
117		161
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	163	from wherever your confdir points to.
120		164
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		166
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	168	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.
127		170
128	=back	171	=back
129		172
130	=cut	173	=cut
131		174
132	BEGIN {	175	BEGIN {
133	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	177	my $msg = join "", @_;
135	utf8::encode $msg;
136		178
137	$msg .= "\n"	179	$msg .= "\n"
138	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
139		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
140	LOG llevError, $msg;	185	LOG llevError, $msg;
141	};	186	};
142	}	187	}
143		188
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		196
151	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	198	# within the Safe compartment.
153	for my $pkg (qw(	199	for my $pkg (qw(
154	cf::global cf::attachable	200	cf::global cf::attachable
…		…
162	}	208	}
163		209
164	$Event::DIED = sub {	210	$Event::DIED = sub {
165	warn "error in event callback: @_";	211	warn "error in event callback: @_";
166	};	212	};
		213
		214	#############################################################################
167		215
168	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
169		217
170	=over 4	218	=over 4
171		219
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	239	$d
192	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
193	}	241	}
194		242
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
198		244
199	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
200		246
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
209		248
210	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
211		250
212	=cut	251	=cut
213		252
214	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
216	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
218		257
219	=item cf::lock_wait $string	258	=item cf::lock_wait $string
220		259
221	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
222		261
…		…
228	returned.	267	returned.
229		268
230	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
232		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
233	=cut	276	=cut
234		277
235	our %LOCK;	278	our %LOCK;
236		279
237	sub lock_wait($) {	280	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
258	}	301	}
259	}	302	}
260		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
261	sub freeze_mainloop {	310	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
263		312
264	my $guard = Coro::guard {	313	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	314	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	315	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
270	$guard	317	$guard
271	}	318	}
272		319
273	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
280		327
281	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
282		329
283	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
284		331
285	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
288		336
289	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
292	fast or be very important.	340	fast or be very important.
…		…
295		343
296	sub sync_job(&) {	344	sub sync_job(&) {
297	my ($job) = @_;	345	my ($job) = @_;
298		346
299	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
300	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
302		352
303	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
315		365
316	while ($busy) {	366	while ($busy) {
317	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
318	}	368	}
319		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
320	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
321	} else {	378	} else {
322	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
323		380
324	$job->()	381	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
344		401
345	$coro	402	$coro
346	}	403	}
347		404
348	sub write_runtime {	405	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		406
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
352	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
353		411
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		413
358	aio_fsync $fh	414	sub fork_call(&@) {
359	and return;	415	my ($cb, @args) = @_;
360		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
361	close $fh	423	close $fh2;
362	or return;
363		424
364	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
365	and return;	426	$res = Coro::Storable::thaw $res;
366		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
367	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	574	}
369		575
370	=back	576	=back
371		577
372	=cut	578	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
381		587
382	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	590	Crossfire TRT).
385		591
386	=over 4	592	=over 4
387		593
388	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
389		595
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	710	our @CB_MAP = ();
505		711
506	my %attachment;	712	my %attachment;
507		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
508	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
510		722
511	use sort 'stable';	723	use sort 'stable';
512		724
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
547		759
548	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		764
553	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	766	my $pkg = shift @arg;
555		767
556	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
585	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
586	}	798	}
587		799
588	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
589	} else {	801	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
591	}	803	}
592		804
593	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
594	}	806	}
595		807
…		…
597	if (ref $_[0]) {	809	if (ref $_[0]) {
598	_object_attach @_;	810	_object_attach @_;
599	} else {	811	} else {
600	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
601	}	813	}
		814	_recalc_want;
602	};	815	};
603		816
604	# all those should be optimised	817	# all those should be optimised
605	sub cf::attachable::detach {	818	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
610	reattach ($obj);	823	reattach ($obj);
611	} else {	824	} else {
612	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
613	}	826	}
		827	_recalc_want;
614	};	828	};
615		829
616	sub cf::attachable::attached {	830	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
618		832
…		…
741	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
742		956
743	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
745	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
746	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
747	close $fh;	961	close $fh;
748		962
749	if (@$objs) {	963	if (@$objs) {
750	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
751	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
752	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
753	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
754	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
755	close $fh;	969	close $fh;
756	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
757	}	971	}
758	} else {	972	} else {
759	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
791	or return;	1005	or return;
792	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
793	}	1007	}
794		1008
795	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
796	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
797	return ($data, $av);	1011	return ($data, $av);
798	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
799		1019
800	#############################################################################	1020	#############################################################################
801	# command handling &c	1021	# command handling &c
802		1022
803	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
816	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
817	}	1037	}
818		1038
819	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
820		1040
821	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
822		1046
823	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
824	called.	1048	called.
825		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
826	=cut	1061	=cut
827		1062
828	sub register_extcmd {	1063	sub register_extcmd {
829	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
830		1065
831	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
832	}	1073	}
833		1074
834	cf::player->attach (	1075	cf::player->attach (
835	on_command => sub {	1076	on_command => sub {
836	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
845	cf::override;	1086	cf::override;
846	},	1087	},
847	on_extcmd => sub {	1088	on_extcmd => sub {
848	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
849		1090
850	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
851		1092
852	if (ref $msg) {	1093	if (ref $msg) {
853	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
854	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
855	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
861		1102
862	cf::override;	1103	cf::override;
863	},	1104	},
864	);	1105	);
865		1106
866	sub load_extension {
867	my ($path) = @_;
868
869	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
870	my $base = $1;
871	my $pkg = $1;
872	$pkg =~ s/[^[:word:]]/_/g;
873	$pkg = "ext::$pkg";
874
875	warn "... loading '$path' into '$pkg'\n";
876
877	open my $fh, "<:utf8", $path
878	or die "$path: $!";
879
880	my $source =
881	"package $pkg; use strict; use utf8;\n"
882	. "#line 1 \"$path\"\n{\n"
883	. (do { local $/; <$fh> })
884	. "\n};\n1";
885
886	unless (eval $source) {
887	my $msg = $@ ? "$path: $@\n"
888	: "extension disabled.\n";
889	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
890	warn $@;
891	warn "mandatory extension failed to load, exiting.\n";
892	exit 1;
893	}
894	die $@;
895	}
896
897	push @EXTS, $pkg;
898	}
899
900	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
901	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
902	next unless -r $ext;	1112	next unless -r $path;
903	eval {	1113
904	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
905	1	1171	}
906	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
907	}	1177	};
908	}	1178	}
909		1179
910	#############################################################################	1180	#############################################################################
911		1181
		1182	=back
		1183
912	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
913		1185
914	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
915		1187
916	=cut	1188	=cut
…		…
928	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
929		1201
930	=cut	1202	=cut
931		1203
932	sub playerdir($) {	1204	sub playerdir($) {
933	cf::localdir	1205	"$PLAYERDIR/"
934	. "/"
935	. cf::playerdir
936	. "/"
937	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
938	}	1207	}
939		1208
940	sub path($) {	1209	sub path($) {
941	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
942		1211
943	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
944	}	1213	}
945		1214
946	sub find_active($) {	1215	sub find_active($) {
947	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
948	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
951		1220
952	sub exists($) {	1221	sub exists($) {
953	my ($login) = @_;	1222	my ($login) = @_;
954		1223
955	$cf::PLAYER{$login}	1224	$cf::PLAYER{$login}
956	or cf::sync_job { !aio_stat $login }	1225	or cf::sync_job { !aio_stat path $login }
957	}	1226	}
958		1227
959	sub find($) {	1228	sub find($) {
960	return $cf::PLAYER{$_[0]} || do {	1229	return $cf::PLAYER{$_[0]} || do {
961	my $login = $_[0];	1230	my $login = $_[0];
962		1231
963	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
964		1233
965	$cf::PLAYER{$_[0]} || do {	1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
966	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
967	or return;	1243	or return;
968	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
969	}	1245	}
970	}	1246	}
…		…
1007		1283
1008	=cut	1284	=cut
1009		1285
1010	sub quit_character {	1286	sub quit_character {
1011	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1012		1290
1013	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1014	$pl->password ("*"); # this should lock out the player until we nuked the dir	1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
1015		1293
1016	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1021	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1022	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1023	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1024	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1025	$pl->destroy;	1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
1026	IO::AIO::aio_rmtree $temp;	1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
1027	}	1325	}
1028		1326
1029	=item cf::player::list_logins	1327	=item cf::player::list_logins
1030		1328
1031	Returns am arrayref of all valid playernames in the system, can take a	1329	Returns am arrayref of all valid playernames in the system, can take a
1032	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1033		1331
1034	=cut	1332	=cut
1035		1333
1036	sub list_logins {	1334	sub list_logins {
1037	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1038	or return [];	1336	or return [];
1039		1337
1040	my @logins;	1338	my @logins;
1041		1339
1042	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1059	=cut	1357	=cut
1060		1358
1061	sub maps($) {	1359	sub maps($) {
1062	my ($pl) = @_;	1360	my ($pl) = @_;
1063		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
1064	my $files = aio_readdir playerdir $pl	1364	my $files = aio_readdir playerdir $pl
1065	or return;	1365	or return;
1066		1366
1067	my @paths;	1367	my @paths;
1068		1368
1069	for (@$files) {	1369	for (@$files) {
1070	utf8::decode $_;	1370	utf8::decode $_;
1071	next if /\.(?:pl|pst)$/;	1371	next if /\.(?:pl|pst)$/;
1072	next unless /^$PATH_SEP/o;	1372	next unless /^$PATH_SEP/o;
1073		1373
1074	s/\.map$//;	1374	push @paths, cf::map::normalise "~$pl/$_";
1075	push @paths, "~" . $pl->ob->name . "/" . $_;
1076	}	1375	}
1077		1376
1078	\@paths	1377	\@paths
1079	}	1378	}
1080		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	$_[0]{hintmode} = $_[1] if @_ > 1;
		1424	$_[0]{hintmode}
		1425	}
		1426
1081	=item $player->ext_reply ($msgid, $msgtype, %msg)	1427	=item $player->ext_reply ($msgid, %msg)
1082		1428
1083	Sends an ext reply to the player.	1429	Sends an ext reply to the player.
1084		1430
1085	=cut	1431	=cut
1086		1432
1087	sub ext_reply($$$%) {	1433	sub ext_reply($$%) {
1088	my ($self, $id, %msg) = @_;	1434	my ($self, $id, %msg) = @_;
1089		1435
1090	$msg{msgid} = $id;	1436	$msg{msgid} = $id;
1091		1437	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1092	$self->send ("ext " . cf::to_json \%msg);
1093	}	1438	}
1094		1439
1095	package cf;	1440	=item $player->ext_event ($type, %msg)
		1441
		1442	Sends an ext event to the client.
		1443
		1444	=cut
		1445
		1446	sub ext_event($$%) {
		1447	my ($self, $type, %msg) = @_;
		1448
		1449	$self->ns->ext_event ($type, %msg);
		1450	}
		1451
		1452	=head3 cf::region
		1453
		1454	=over 4
		1455
		1456	=cut
		1457
		1458	package cf::region;
		1459
		1460	=item cf::region::find_by_path $path
		1461
		1462	Tries to decuce the likely region for a map knowing only its path.
		1463
		1464	=cut
		1465
		1466	sub find_by_path($) {
		1467	my ($path) = @_;
		1468
		1469	my ($match, $specificity);
		1470
		1471	for my $region (list) {
		1472	if ($region->match && $path =~ $region->match) {
		1473	($match, $specificity) = ($region, $region->specificity)
		1474	if $region->specificity > $specificity;
		1475	}
		1476	}
		1477
		1478	$match
		1479	}
1096		1480
1097	=back	1481	=back
1098
1099		1482
1100	=head3 cf::map	1483	=head3 cf::map
1101		1484
1102	=over 4	1485	=over 4
1103		1486
…		…
1107		1490
1108	use Fcntl;	1491	use Fcntl;
1109	use Coro::AIO;	1492	use Coro::AIO;
1110		1493
1111	use overload	1494	use overload
1112	'""' => \&as_string;	1495	'""' => \&as_string,
		1496	fallback => 1;
1113		1497
1114	our $MAX_RESET = 3600;	1498	our $MAX_RESET = 3600;
1115	our $DEFAULT_RESET = 3000;	1499	our $DEFAULT_RESET = 3000;
1116		1500
1117	sub generate_random_map {	1501	sub generate_random_map {
1118	my ($self, $rmp) = @_;	1502	my ($self, $rmp) = @_;
1119
1120	# mit "rum" bekleckern, nicht	1503	# mit "rum" bekleckern, nicht
1121	$self->_create_random_map (	1504	$self->_create_random_map (
1122	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1505	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1506	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1124	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1507	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1131	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1514	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132	(cf::region::find $rmp->{region}), $rmp->{custom}	1515	(cf::region::find $rmp->{region}), $rmp->{custom}
1133	)	1516	)
1134	}	1517	}
1135		1518
		1519	=item cf::map->register ($regex, $prio)
		1520
		1521	Register a handler for the map path matching the given regex at the
		1522	givne priority (higher is better, built-in handlers have priority 0, the
		1523	default).
		1524
		1525	=cut
		1526
1136	sub register {	1527	sub register {
1137	my (undef, $regex) = @_;	1528	my (undef, $regex, $prio) = @_;
1138	my $pkg = caller;	1529	my $pkg = caller;
1139		1530
1140	no strict;	1531	no strict;
1141	push @{"$pkg\::ISA"}, __PACKAGE__;	1532	push @{"$pkg\::ISA"}, __PACKAGE__;
1142		1533
1143	$EXT_MAP{$pkg} = qr<$regex>;	1534	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144	}	1535	}
1145		1536
1146	# also paths starting with '/'	1537	# also paths starting with '/'
1147	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1538	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1539
		1540	sub thawer_merge {
		1541	my ($self, $merge) = @_;
		1542
		1543	# we have to keep some variables in memory intact
		1544	local $self->{path};
		1545	local $self->{load_path};
		1546
		1547	$self->SUPER::thawer_merge ($merge);
		1548	}
1148		1549
1149	sub normalise {	1550	sub normalise {
1150	my ($path, $base) = @_;	1551	my ($path, $base) = @_;
		1552
		1553	$path = "$path"; # make sure its a string
		1554
		1555	$path =~ s/\.map$//;
1151		1556
1152	# map plan:	1557	# map plan:
1153	#	1558	#
1154	# /! non-realised random map exit (special hack!)	1559	# /! non-realised random map exit (special hack!)
1155	# {... are special paths that are not being touched	1560	# {... are special paths that are not being touched
…		…
1183		1588
1184	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1589	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185		1590
1186	$path = normalise $path, $base;	1591	$path = normalise $path, $base;
1187		1592
1188	for my $pkg (keys %EXT_MAP) {	1593	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189	if ($path =~ $EXT_MAP{$pkg}) {	1594	if ($path =~ $EXT_MAP{$pkg}[1]) {
1190	my $self = bless cf::map::new, $pkg;	1595	my $self = bless cf::map::new, $pkg;
1191	$self->{path} = $path; $self->path ($path);	1596	$self->{path} = $path; $self->path ($path);
1192	$self->init; # pass $1 etc.	1597	$self->init; # pass $1 etc.
1193	return $self;	1598	return $self;
1194	}	1599	}
1195	}	1600	}
1196		1601
1197	Carp::carp "unable to resolve path '$path'.";	1602	Carp::carp "unable to resolve path '$path' (base '$base').";
1198	()	1603	()
1199	}	1604	}
1200		1605
1201	sub init {	1606	sub init {
1202	my ($self) = @_;	1607	my ($self) = @_;
…		…
1217		1622
1218	# the original (read-only) location	1623	# the original (read-only) location
1219	sub load_path {	1624	sub load_path {
1220	my ($self) = @_;	1625	my ($self) = @_;
1221		1626
1222	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1627	"$MAPDIR/$self->{path}.map"
1223	}	1628	}
1224		1629
1225	# the temporary/swap location	1630	# the temporary/swap location
1226	sub save_path {	1631	sub save_path {
1227	my ($self) = @_;	1632	my ($self) = @_;
1228		1633
1229	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1634	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1230	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1635	"$TMPDIR/$path.map"
1231	}	1636	}
1232		1637
1233	# the unique path, undef == no special unique path	1638	# the unique path, undef == no special unique path
1234	sub uniq_path {	1639	sub uniq_path {
1235	my ($self) = @_;	1640	my ($self) = @_;
1236		1641
1237	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1642	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1238	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1643	"$UNIQUEDIR/$path"
1239	}	1644	}
1240		1645
1241	# and all this just because we cannot iterate over	1646	# and all this just because we cannot iterate over
1242	# all maps in C++...	1647	# all maps in C++...
1243	sub change_all_map_light {	1648	sub change_all_map_light {
…		…
1245		1650
1246	$_->change_map_light ($change)	1651	$_->change_map_light ($change)
1247	for grep $_->outdoor, values %cf::MAP;	1652	for grep $_->outdoor, values %cf::MAP;
1248	}	1653	}
1249		1654
		1655	sub decay_objects {
		1656	my ($self) = @_;
		1657
		1658	return if $self->{deny_reset};
		1659
		1660	$self->do_decay_objects;
		1661	}
		1662
1250	sub unlink_save {	1663	sub unlink_save {
1251	my ($self) = @_;	1664	my ($self) = @_;
1252		1665
1253	utf8::encode (my $save = $self->save_path);	1666	utf8::encode (my $save = $self->save_path);
1254	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1667	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256	}	1669	}
1257		1670
1258	sub load_header_from($) {	1671	sub load_header_from($) {
1259	my ($self, $path) = @_;	1672	my ($self, $path) = @_;
1260		1673
1261	utf8::encode $path;	1674	utf8::encode $path;
1262	aio_open $path, O_RDONLY, 0	1675	#aio_open $path, O_RDONLY, 0
1263	or return;	1676	# or return;
1264		1677
1265	$self->_load_header ($path)	1678	$self->_load_header ($path)
1266	or return;	1679	or return;
1267		1680
1268	$self->{load_path} = $path;	1681	$self->{load_path} = $path;
1269		1682
1270	1	1683	1
1271	}	1684	}
1272		1685
1273	sub load_orig {	1686	sub load_header_orig {
1274	my ($self) = @_;	1687	my ($self) = @_;
1275		1688
1276	$self->load_header_from ($self->load_path)	1689	$self->load_header_from ($self->load_path)
1277	}	1690	}
1278		1691
1279	sub load_temp {	1692	sub load_header_temp {
1280	my ($self) = @_;	1693	my ($self) = @_;
1281		1694
1282	$self->load_header_from ($self->save_path)	1695	$self->load_header_from ($self->save_path)
		1696	}
		1697
		1698	sub prepare_temp {
		1699	my ($self) = @_;
		1700
		1701	$self->last_access ((delete $self->{last_access})
		1702	|| $cf::RUNTIME); #d#
		1703	# safety
		1704	$self->{instantiate_time} = $cf::RUNTIME
		1705	if $self->{instantiate_time} > $cf::RUNTIME;
		1706	}
		1707
		1708	sub prepare_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->{load_original} = 1;
		1712	$self->{instantiate_time} = $cf::RUNTIME;
		1713	$self->last_access ($cf::RUNTIME);
		1714	$self->instantiate;
1283	}	1715	}
1284		1716
1285	sub load_header {	1717	sub load_header {
1286	my ($self) = @_;	1718	my ($self) = @_;
1287		1719
1288	if ($self->load_temp) {	1720	if ($self->load_header_temp) {
1289	$self->last_access ((delete $self->{last_access})	1721	$self->prepare_temp;
1290	|| $cf::RUNTIME); #d#
1291	# safety
1292	$self->{instantiate_time} = $cf::RUNTIME
1293	if $self->{instantiate_time} > $cf::RUNTIME;
1294	} else {	1722	} else {
1295	$self->load_orig	1723	$self->load_header_orig
1296	or return;	1724	or return;
1297		1725	$self->prepare_orig;
1298	$self->{load_original} = 1;
1299	$self->{instantiate_time} = $cf::RUNTIME;
1300	$self->last_access ($cf::RUNTIME);
1301	$self->instantiate;
1302	}	1726	}
		1727
		1728	$self->{deny_reset} = 1
		1729	if $self->no_reset;
		1730
		1731	$self->default_region (cf::region::find_by_path $self->{path})
		1732	unless $self->default_region;
1303		1733
1304	1	1734	1
1305	}	1735	}
1306		1736
1307	sub find;	1737	sub find;
…		…
1320	$map->{last_save} = $cf::RUNTIME;	1750	$map->{last_save} = $cf::RUNTIME;
1321		1751
1322	$map->load_header	1752	$map->load_header
1323	or return;	1753	or return;
1324		1754
1325	if ($map->should_reset) {	1755	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1756	# doing this can freeze the server in a sync job, obviously
		1757	#$cf::WAIT_FOR_TICK->wait;
1326	$map->reset;	1758	$map->reset;
1327	undef $guard;	1759	undef $guard;
1328	$map = find $path	1760	return find $path;
1329	or return;
1330	}	1761	}
1331		1762
1332	$cf::MAP{$path} = $map	1763	$cf::MAP{$path} = $map
1333	}	1764	}
1334	}	1765	}
		1766
		1767	sub pre_load { }
		1768	sub post_load { }
1335		1769
1336	sub load {	1770	sub load {
1337	my ($self) = @_;	1771	my ($self) = @_;
1338		1772
		1773	local $self->{deny_reset} = 1; # loading can take a long time
		1774
1339	my $path = $self->{path};	1775	my $path = $self->{path};
		1776
		1777	{
1340	my $guard = cf::lock_acquire "map_load:$path";	1778	my $guard = cf::lock_acquire "map_load:$path";
1341		1779
1342	return if $self->in_memory != cf::MAP_SWAPPED;	1780	return if $self->in_memory != cf::MAP_SWAPPED;
1343		1781
1344	$self->in_memory (cf::MAP_LOADING);	1782	$self->in_memory (cf::MAP_LOADING);
1345		1783
1346	$self->alloc;	1784	$self->alloc;
1347	$self->_load_objects ($self->{load_path}, 1)
1348	or return;
1349		1785
1350	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1786	$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;	1787	Coro::cede;
1371	$self->set_darkness_map;	1788
		1789	$self->_load_objects ($self->{load_path}, 1)
		1790	or return;
		1791
		1792	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1793	if delete $self->{load_original};
		1794
		1795	if (my $uniq = $self->uniq_path) {
		1796	utf8::encode $uniq;
		1797	if (aio_open $uniq, O_RDONLY, 0) {
		1798	$self->clear_unique_items;
		1799	$self->_load_objects ($uniq, 0);
		1800	}
		1801	}
		1802
		1803	Coro::cede;
		1804	# now do the right thing for maps
		1805	$self->link_multipart_objects;
1372	$self->difficulty ($self->estimate_difficulty)	1806	$self->difficulty ($self->estimate_difficulty)
1373	unless $self->difficulty;	1807	unless $self->difficulty;
1374	Coro::cede;	1808	Coro::cede;
		1809
		1810	unless ($self->{deny_activate}) {
		1811	$self->decay_objects;
		1812	$self->fix_auto_apply;
		1813	$self->update_buttons;
		1814	Coro::cede;
		1815	$self->set_darkness_map;
		1816	Coro::cede;
1375	$self->activate;	1817	$self->activate;
1376	}	1818	}
1377		1819
1378	$self->in_memory (cf::MAP_IN_MEMORY);	1820	$self->in_memory (cf::MAP_IN_MEMORY);
		1821	}
		1822
		1823	$self->post_load;
1379	}	1824	}
1380		1825
1381	sub customise_for {	1826	sub customise_for {
1382	my ($self, $ob) = @_;	1827	my ($self, $ob) = @_;
1383		1828
1384	return find "~" . $ob->name . "/" . $self->{path}	1829	return find "~" . $ob->name . "/" . $self->{path}
1385	if $self->per_player;	1830	if $self->per_player;
		1831
		1832	# return find "?party/" . $ob->name . "/" . $self->{path}
		1833	# if $self->per_party;
1386		1834
1387	$self	1835	$self
1388	}	1836	}
1389		1837
1390	# find and load all maps in the 3x3 area around a map	1838	# find and load all maps in the 3x3 area around a map
…		…
1422		1870
1423	cf::sync_job { $map->load };	1871	cf::sync_job { $map->load };
1424	}	1872	}
1425		1873
1426	our %MAP_PREFETCH;	1874	our %MAP_PREFETCH;
1427	our $MAP_PREFETCHER = Coro::async {	1875	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		1876
1440	sub find_async {	1877	sub find_async {
1441	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1442		1879
1443	$path = normalise $path, $origin && $origin->{path};	1880	$path = normalise $path, $origin && $origin->{path};
1444		1881
1445	if (my $map = $cf::MAP{$path}) {	1882	if (my $map = $cf::MAP{$path}) {
1446	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1883	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1447	}	1884	}
1448		1885
1449	$MAP_PREFETCH{$path} = 0;	1886	undef $MAP_PREFETCH{$path};
		1887	$MAP_PREFETCHER ||= cf::async {
		1888	while (%MAP_PREFETCH) {
		1889	for my $path (keys %MAP_PREFETCH) {
		1890	my $map = find $path
		1891	or next;
		1892	$map->load;
		1893
		1894	delete $MAP_PREFETCH{$path};
		1895	}
		1896	}
		1897	undef $MAP_PREFETCHER;
		1898	};
1450	$MAP_PREFETCHER->ready;	1899	$MAP_PREFETCHER->prio (6);
1451		1900
1452	()	1901	()
1453	}	1902	}
1454		1903
1455	sub save {	1904	sub save {
…		…
1500		1949
1501	sub reset_at {	1950	sub reset_at {
1502	my ($self) = @_;	1951	my ($self) = @_;
1503		1952
1504	# TODO: safety, remove and allow resettable per-player maps	1953	# 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};	1954	return 1e99 if $self->{deny_reset};
1507		1955
1508	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1956	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1509	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1957	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1510		1958
…		…
1515	my ($self) = @_;	1963	my ($self) = @_;
1516		1964
1517	$self->reset_at <= $cf::RUNTIME	1965	$self->reset_at <= $cf::RUNTIME
1518	}	1966	}
1519		1967
1520	sub rename {
1521	my ($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	$self->save;
1532	}
1533
1534	sub reset {	1968	sub reset {
1535	my ($self) = @_;	1969	my ($self) = @_;
1536		1970
1537	my $lock = cf::lock_acquire "map_data:$self->{path}";	1971	my $lock = cf::lock_acquire "map_data:$self->{path}";
1538		1972
1539	return if $self->players;	1973	return if $self->players;
1540	return if $self->isa ("ext::map_per_player");#d#
1541		1974
1542	warn "resetting map ", $self->path;#d#	1975	warn "resetting map ", $self->path;
		1976
		1977	$self->in_memory (cf::MAP_SWAPPED);
		1978
		1979	# need to save uniques path
		1980	unless ($self->{deny_save}) {
		1981	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1982
		1983	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1984	if $uniq;
		1985	}
1543		1986
1544	delete $cf::MAP{$self->path};	1987	delete $cf::MAP{$self->path};
1545		1988
1546	$self->in_memory (cf::MAP_SWAPPED);
1547	$self->clear;	1989	$self->clear;
1548		1990
1549	$_->clear_links_to ($self) for values %cf::MAP;	1991	$_->clear_links_to ($self) for values %cf::MAP;
1550		1992
1551	$self->unlink_save;	1993	$self->unlink_save;
…		…
1555	my $nuke_counter = "aaaa";	1997	my $nuke_counter = "aaaa";
1556		1998
1557	sub nuke {	1999	sub nuke {
1558	my ($self) = @_;	2000	my ($self) = @_;
1559		2001
		2002	delete $cf::MAP{$self->path};
		2003
		2004	$self->unlink_save;
		2005
		2006	bless $self, "cf::map";
		2007	delete $self->{deny_reset};
1560	$self->{deny_save} = 1;	2008	$self->{deny_save} = 1;
1561	$self->reset_timeout (1);	2009	$self->reset_timeout (1);
1562	$self->rename ("{nuke}/" . ($nuke_counter++));	2010	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2011
		2012	$cf::MAP{$self->path} = $self;
		2013
1563	$self->reset; # polite request, might not happen	2014	$self->reset; # polite request, might not happen
		2015	}
		2016
		2017	=item $maps = cf::map::tmp_maps
		2018
		2019	Returns an arrayref with all map paths of currently instantiated and saved
		2020	maps. May block.
		2021
		2022	=cut
		2023
		2024	sub tmp_maps() {
		2025	[
		2026	map {
		2027	utf8::decode $_;
		2028	/\.map$/
		2029	? normalise $_
		2030	: ()
		2031	} @{ aio_readdir $TMPDIR or [] }
		2032	]
		2033	}
		2034
		2035	=item $maps = cf::map::random_maps
		2036
		2037	Returns an arrayref with all map paths of currently instantiated and saved
		2038	random maps. May block.
		2039
		2040	=cut
		2041
		2042	sub random_maps() {
		2043	[
		2044	map {
		2045	utf8::decode $_;
		2046	/\.map$/
		2047	? normalise "?random/$_"
		2048	: ()
		2049	} @{ aio_readdir $RANDOMDIR or [] }
		2050	]
1564	}	2051	}
1565		2052
1566	=item cf::map::unique_maps	2053	=item cf::map::unique_maps
1567		2054
1568	Returns an arrayref of paths of all shared maps that have	2055	Returns an arrayref of paths of all shared maps that have
1569	instantiated unique items. May block.	2056	instantiated unique items. May block.
1570		2057
1571	=cut	2058	=cut
1572		2059
1573	sub unique_maps() {	2060	sub unique_maps() {
1574	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2061	[
1575	or return;	2062	map {
1576
1577	my @paths;
1578
1579	for (@$files) {
1580	utf8::decode $_;	2063	utf8::decode $_;
1581	next if /\.pst$/;
1582	next unless /^$PATH_SEP/o;
1583
1584	s/\.map$//;	2064	/\.map$/
1585	push @paths, $_;	2065	? normalise $_
		2066	: ()
		2067	} @{ aio_readdir $UNIQUEDIR or [] }
1586	}	2068	]
1587
1588	\@paths
1589	}	2069	}
1590		2070
1591	package cf;	2071	package cf;
1592		2072
1593	=back	2073	=back
…		…
1639		2119
1640	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2120	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1641		2121
1642	if ($self->{record_replies}) {	2122	if ($self->{record_replies}) {
1643	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2123	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2124
1644	} else {	2125	} else {
		2126	my $pl = $self->contr;
		2127
		2128	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2129	my $diag = $pl->{npc_dialog};
		2130	$diag->{pl}->ext_reply (
		2131	$diag->{id},
		2132	msgtype => "reply",
		2133	msg => $diag->{pl}->expand_cfpod ($msg),
		2134	add_topics => []
		2135	);
		2136
		2137	} else {
1645	$msg = $npc->name . " says: $msg" if $npc;	2138	$msg = $npc->name . " says: $msg" if $npc;
1646	$self->message ($msg, $flags);	2139	$self->message ($msg, $flags);
		2140	}
1647	}	2141	}
1648	}	2142	}
1649		2143
1650	=item $player_object->may ("access")	2144	=item $player_object->may ("access")
1651		2145
…		…
1684	=cut	2178	=cut
1685		2179
1686	sub link_map {	2180	sub link_map {
1687	unless ($LINK_MAP) {	2181	unless ($LINK_MAP) {
1688	$LINK_MAP = cf::map::find "{link}"	2182	$LINK_MAP = cf::map::find "{link}"
1689	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2183	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690	$LINK_MAP->load;	2184	$LINK_MAP->load;
1691	}	2185	}
1692		2186
1693	$LINK_MAP	2187	$LINK_MAP
1694	}	2188	}
…		…
1699	$self->deactivate_recursive;	2193	$self->deactivate_recursive;
1700		2194
1701	return if UNIVERSAL::isa $self->map, "ext::map_link";	2195	return if UNIVERSAL::isa $self->map, "ext::map_link";
1702		2196
1703	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2197	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704	if $self->map;	2198	if $self->map && $self->map->{path} ne "{link}";
1705		2199
1706	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2200	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1707	}	2201	}
1708		2202
1709	sub cf::object::player::leave_link {	2203	sub cf::object::player::leave_link {
1710	my ($self, $map, $x, $y) = @_;	2204	my ($self, $map, $x, $y) = @_;
		2205
		2206	return unless $self->contr->active;
1711		2207
1712	my $link_pos = delete $self->{_link_pos};	2208	my $link_pos = delete $self->{_link_pos};
1713		2209
1714	unless ($map) {	2210	unless ($map) {
1715	# restore original map position	2211	# restore original map position
…		…
1733	$map->load;	2229	$map->load;
1734	$map->load_diag;	2230	$map->load_diag;
1735		2231
1736	return unless $self->contr->active;	2232	return unless $self->contr->active;
1737	$self->activate_recursive;	2233	$self->activate_recursive;
		2234
		2235	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1738	$self->enter_map ($map, $x, $y);	2236	$self->enter_map ($map, $x, $y);
1739	}	2237	}
1740		2238
1741	cf::player->attach (
1742	on_logout => sub {
1743	my ($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)	2239	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1774		2240
		2241	Moves the player to the given map-path and coordinates by first freezing
		2242	her, loading and preparing them map, calling the provided $check callback
		2243	that has to return the map if sucecssful, and then unfreezes the player on
		2244	the new (success) or old (failed) map position.
		2245
1775	=cut	2246	=cut
		2247
		2248	our $GOTOGEN;
1776		2249
1777	sub cf::object::player::goto {	2250	sub cf::object::player::goto {
1778	my ($self, $path, $x, $y) = @_;	2251	my ($self, $path, $x, $y, $check) = @_;
		2252
		2253	# do generation counting so two concurrent goto's will be executed in-order
		2254	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1779		2255
1780	$self->enter_link;	2256	$self->enter_link;
1781		2257
1782	(async {	2258	(async {
		2259	my $map = eval {
1783	my $map = cf::map::find $path;	2260	my $map = cf::map::find $path;
		2261
		2262	if ($map) {
1784	$map = $map->customise_for ($self) if $map;	2263	$map = $map->customise_for ($self);
1785		2264	$map = $check->($map) if $check && $map;
1786	# warn "entering ", $map->path, " at ($x, $y)\n"	2265	} else {
1787	# if $map;
1788
1789	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2266	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2267	}
1790		2268
		2269	$map
		2270	};
		2271
		2272	if ($@) {
		2273	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2274	LOG llevError | logBacktrace, Carp::longmess $@;
		2275	}
		2276
		2277	if ($gen == $self->{_goto_generation}) {
		2278	delete $self->{_goto_generation};
1791	$self->leave_link ($map, $x, $y);	2279	$self->leave_link ($map, $x, $y);
		2280	}
1792	})->prio (1);	2281	})->prio (1);
1793	}	2282	}
1794		2283
1795	=item $player_object->enter_exit ($exit_object)	2284	=item $player_object->enter_exit ($exit_object)
1796		2285
…		…
1798		2287
1799	sub parse_random_map_params {	2288	sub parse_random_map_params {
1800	my ($spec) = @_;	2289	my ($spec) = @_;
1801		2290
1802	my $rmp = { # defaults	2291	my $rmp = { # defaults
1803	xsize => 10,	2292	xsize => (cf::rndm 15, 40),
1804	ysize => 10,	2293	ysize => (cf::rndm 15, 40),
		2294	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2295	#layout => string,
1805	};	2296	};
1806		2297
1807	for (split /\n/, $spec) {	2298	for (split /\n/, $spec) {
1808	my ($k, $v) = split /\s+/, $_, 2;	2299	my ($k, $v) = split /\s+/, $_, 2;
1809		2300
…		…
1813	$rmp	2304	$rmp
1814	}	2305	}
1815		2306
1816	sub prepare_random_map {	2307	sub prepare_random_map {
1817	my ($exit) = @_;	2308	my ($exit) = @_;
		2309
		2310	my $guard = cf::lock_acquire "exit_prepare:$exit";
1818		2311
1819	# all this does is basically replace the /! path by	2312	# all this does is basically replace the /! path by
1820	# a new random map path (?random/...) with a seed	2313	# a new random map path (?random/...) with a seed
1821	# that depends on the exit object	2314	# that depends on the exit object
1822		2315
1823	my $rmp = parse_random_map_params $exit->msg;	2316	my $rmp = parse_random_map_params $exit->msg;
1824		2317
1825	if ($exit->map) {	2318	if ($exit->map) {
1826	$rmp->{region} = $exit->map->region_name;	2319	$rmp->{region} = $exit->region->name;
1827	$rmp->{origin_map} = $exit->map->path;	2320	$rmp->{origin_map} = $exit->map->path;
1828	$rmp->{origin_x} = $exit->x;	2321	$rmp->{origin_x} = $exit->x;
1829	$rmp->{origin_y} = $exit->y;	2322	$rmp->{origin_y} = $exit->y;
1830	}	2323	}
1831		2324
1832	$rmp->{random_seed} ||= $exit->random_seed;	2325	$rmp->{random_seed} ||= $exit->random_seed;
1833		2326
1834	my $data = cf::to_json $rmp;	2327	my $data = cf::to_json $rmp;
1835	my $md5 = Digest::MD5::md5_hex $data;	2328	my $md5 = Digest::MD5::md5_hex $data;
		2329	my $meta = "$RANDOMDIR/$md5.meta";
1836		2330
1837	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2331	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838	aio_write $fh, 0, (length $data), $data, 0;	2332	aio_write $fh, 0, (length $data), $data, 0;
		2333	undef $fh;
		2334	aio_rename "$meta~", $meta;
1839		2335
1840	$exit->slaying ("?random/$md5");	2336	$exit->slaying ("?random/$md5");
1841	$exit->msg (undef);	2337	$exit->msg (undef);
1842	}	2338	}
1843	}	2339	}
1844		2340
1845	sub cf::object::player::enter_exit {	2341	sub cf::object::player::enter_exit {
1846	my ($self, $exit) = @_;	2342	my ($self, $exit) = @_;
1847		2343
1848	return unless $self->type == cf::PLAYER;	2344	return unless $self->type == cf::PLAYER;
		2345
		2346	if ($exit->slaying eq "/!") {
		2347	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2348	# the problem is that $exit might not survive long enough
		2349	# so it needs to be done right now, right here
		2350	cf::sync_job { prepare_random_map $exit };
		2351	}
		2352
		2353	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2354	my $hp = $exit->stats->hp;
		2355	my $sp = $exit->stats->sp;
1849		2356
1850	$self->enter_link;	2357	$self->enter_link;
1851		2358
1852	(async {	2359	(async {
1853	$self->deactivate_recursive; # just to be sure	2360	$self->deactivate_recursive; # just to be sure
1854	unless (eval {	2361	unless (eval {
1855	prepare_random_map $exit	2362	$self->goto ($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		2363
1861	1;	2364	1;
1862	}) {	2365	}) {
1863	$self->message ("Something went wrong deep within the crossfire server. "	2366	$self->message ("Something went wrong deep within the crossfire server. "
1864	. "I'll try to bring you back to the map you were before. "	2367	. "I'll try to bring you back to the map you were before. "
1865	. "Please report this to the dungeon master!",	2368	. "Please report this to the dungeon master!",
1866	cf::NDI_UNIQUE | cf::NDI_RED);	2369	cf::NDI_UNIQUE | cf::NDI_RED);
1867		2370
1868	warn "ERROR in enter_exit: $@";	2371	warn "ERROR in enter_exit: $@";
1869	$self->leave_link;	2372	$self->leave_link;
1870	}	2373	}
1871	})->prio (1);	2374	})->prio (1);
…		…
1884		2387
1885	sub cf::client::send_drawinfo {	2388	sub cf::client::send_drawinfo {
1886	my ($self, $text, $flags) = @_;	2389	my ($self, $text, $flags) = @_;
1887		2390
1888	utf8::encode $text;	2391	utf8::encode $text;
1889	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2392	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890	}	2393	}
1891		2394
		2395	=item $client->send_msg ($color, $type, $msg, [extra...])
		2396
		2397	Send a drawinfo or msg packet to the client, formatting the msg for the
		2398	client if neccessary. C<$type> should be a string identifying the type of
		2399	the message, with C<log> being the default. If C<$color> is negative, suppress
		2400	the message unless the client supports the msg packet.
		2401
		2402	=cut
		2403
		2404	sub cf::client::send_msg {
		2405	my ($self, $color, $type, $msg, @extra) = @_;
		2406
		2407	$msg = $self->pl->expand_cfpod ($msg);
		2408
		2409	if ($self->can_msg) {
		2410	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2411	} else {
		2412	# replace some tags by gcfclient-compatible ones
		2413	for ($msg) {
		2414	1 while
		2415	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2416	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2417	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2418	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2419	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2420	}
		2421
		2422	if ($color >= 0) {
		2423	if (0 && $msg =~ /\[/) {
		2424	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2425	} else {
		2426	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2427	$self->send_packet ("drawinfo $color $msg")
		2428	}
		2429	}
		2430	}
		2431	}
		2432
		2433	=item $client->ext_event ($type, %msg)
		2434
		2435	Sends an ext event to the client.
		2436
		2437	=cut
		2438
		2439	sub cf::client::ext_event($$%) {
		2440	my ($self, $type, %msg) = @_;
		2441
		2442	$msg{msgtype} = "event_$type";
		2443	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2444	}
1892		2445
1893	=item $success = $client->query ($flags, "text", \&cb)	2446	=item $success = $client->query ($flags, "text", \&cb)
1894		2447
1895	Queues a query to the client, calling the given callback with	2448	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>,	2449	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>.	2450	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1898		2451
1899	Queries can fail, so check the return code. Or don't, as queries will become	2452	Queries can fail, so check the return code. Or don't, as queries will
1900	reliable at some point in the future.	2453	become reliable at some point in the future.
1901		2454
1902	=cut	2455	=cut
1903		2456
1904	sub cf::client::query {	2457	sub cf::client::query {
1905	my ($self, $flags, $text, $cb) = @_;	2458	my ($self, $flags, $text, $cb) = @_;
…		…
1913	utf8::encode $text;	2466	utf8::encode $text;
1914	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2467	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1915		2468
1916	$self->send_packet ($self->{query_queue}[0][0])	2469	$self->send_packet ($self->{query_queue}[0][0])
1917	if @{ $self->{query_queue} } == 1;	2470	if @{ $self->{query_queue} } == 1;
		2471
		2472	1
1918	}	2473	}
1919		2474
1920	cf::client->attach (	2475	cf::client->attach (
		2476	on_connect => sub {
		2477	my ($ns) = @_;
		2478
		2479	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2480	},
1921	on_reply => sub {	2481	on_reply => sub {
1922	my ($ns, $msg) = @_;	2482	my ($ns, $msg) = @_;
1923		2483
1924	# this weird shuffling is so that direct followup queries	2484	# this weird shuffling is so that direct followup queries
1925	# get handled first	2485	# get handled first
1926	my $queue = delete $ns->{query_queue}	2486	my $queue = delete $ns->{query_queue}
1927	or return; # be conservative, not sure how that can happen, but we saw a crash here	2487	or return; # be conservative, not sure how that can happen, but we saw a crash here
1928		2488
1929	(shift @$queue)->[1]->($msg);	2489	(shift @$queue)->[1]->($msg);
		2490	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930		2491
1931	push @{ $ns->{query_queue} }, @$queue;	2492	push @{ $ns->{query_queue} }, @$queue;
1932		2493
1933	if (@{ $ns->{query_queue} } == @$queue) {	2494	if (@{ $ns->{query_queue} } == @$queue) {
1934	if (@$queue) {	2495	if (@$queue) {
…		…
1936	} else {	2497	} else {
1937	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2498	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1938	}	2499	}
1939	}	2500	}
1940	},	2501	},
		2502	on_exticmd => sub {
		2503	my ($ns, $buf) = @_;
		2504
		2505	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2506
		2507	if (ref $msg) {
		2508	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2509	if (my %reply = $cb->($ns, $msg)) {
		2510	$reply{msgid} = $msg->{msgid};
		2511	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2512	}
		2513	}
		2514	} else {
		2515	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2516	}
		2517
		2518	cf::override;
		2519	},
1941	);	2520	);
1942		2521
1943	=item $client->async (\&cb)	2522	=item $client->async (\&cb)
1944		2523
1945	Create a new coroutine, running the specified callback. The coroutine will	2524	Create a new coroutine, running the specified callback. The coroutine will
…		…
1992		2571
1993	# here we export the classes and methods available to script code	2572	# here we export the classes and methods available to script code
1994		2573
1995	=pod	2574	=pod
1996		2575
1997	The following fucntions and emthods are available within a safe environment:	2576	The following functions and methods are available within a safe environment:
1998		2577
1999	cf::object contr pay_amount pay_player map	2578	cf::object contr pay_amount pay_player map
2000	cf::object::player player	2579	cf::object::player player
2001	cf::player peaceful	2580	cf::player peaceful
2002	cf::map trigger	2581	cf::map trigger
…		…
2083	=back	2662	=back
2084		2663
2085	=cut	2664	=cut
2086		2665
2087	#############################################################################	2666	#############################################################################
		2667	# the server's init and main functions
2088		2668
2089	=head2 EXTENSION DATABASE SUPPORT	2669	sub load_facedata($) {
		2670	my ($path) = @_;
2090		2671
2091	Crossfire maintains a very simple database for extension use. It can	2672	warn "loading facedata from $path\n";
2092	currently store anything that can be serialised using Storable, which
2093	excludes objects.
2094		2673
2095	The parameter C<$family> should best start with the name of the extension	2674	my $facedata;
2096	using it, it should be unique.	2675	0 < aio_load $path, $facedata
		2676	or die "$path: $!";
2097		2677
2098	=over 4	2678	$facedata = Coro::Storable::thaw $facedata;
2099		2679
2100	=item $hashref = cf::db_get $family	2680	$facedata->{version} == 2
		2681	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		2682
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	}	2683	{
		2684	my $faces = $facedata->{faceinfo};
2138		2685
2139	my $pid;	2686	while (my ($face, $info) = each %$faces) {
2140		2687	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2141	sub db_save() {	2688	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2142	waitpid $pid, 0 if $pid;	2689	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2143	if (0 == ($pid = fork)) {	2690	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2144	$DB->{_meta}{version} = 1;	2691	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]} = $_[1];
2178	}
2179	db_dirty;
2180	}
2181
2182	cf::global->attach (
2183	prio => 10000,
2184	on_cleanup => sub {
2185	db_sync;
2186	},	2692	}
2187	);
2188	}
2189		2693
2190	#############################################################################	2694	while (my ($face, $info) = each %$faces) {
2191	# the server's main()	2695	next unless $info->{smooth};
		2696	my $idx = cf::face::find $face
		2697	or next;
		2698	if (my $smooth = cf::face::find $info->{smooth}) {
		2699	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2700	} else {
		2701	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2702	}
		2703	Coro::cede;
		2704	}
		2705	}
		2706
		2707	{
		2708	my $anims = $facedata->{animinfo};
		2709
		2710	while (my ($anim, $info) = each %$anims) {
		2711	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2712	Coro::cede;
		2713	}
		2714
		2715	cf::anim::invalidate_all; # d'oh
		2716	}
		2717
		2718	1
		2719	}
		2720
		2721	sub reload_regions {
		2722	load_resource_file "$MAPDIR/regions"
		2723	or die "unable to load regions file\n";
		2724	}
		2725
		2726	sub reload_facedata {
		2727	load_facedata "$DATADIR/facedata"
		2728	or die "unable to load facedata\n";
		2729	}
		2730
		2731	sub reload_archetypes {
		2732	load_resource_file "$DATADIR/archetypes"
		2733	or die "unable to load archetypes\n";
		2734	#d# NEED to laod twice to resolve forward references
		2735	# this really needs to be done in an extra post-pass
		2736	# (which needs to be synchronous, so solve it differently)
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
		2739	}
		2740
		2741	sub reload_treasures {
		2742	load_resource_file "$DATADIR/treasures"
		2743	or die "unable to load treasurelists\n";
		2744	}
		2745
		2746	sub reload_resources {
		2747	warn "reloading resource files...\n";
		2748
		2749	reload_regions;
		2750	reload_facedata;
		2751	#reload_archetypes;#d#
		2752	reload_archetypes;
		2753	reload_treasures;
		2754
		2755	warn "finished reloading resource files\n";
		2756	}
		2757
		2758	sub init {
		2759	reload_resources;
		2760	}
2192		2761
2193	sub cfg_load {	2762	sub cfg_load {
2194	open my $fh, "<:utf8", cf::confdir . "/config"	2763	open my $fh, "<:utf8", "$CONFDIR/config"
2195	or return;	2764	or return;
2196		2765
2197	local $/;	2766	local $/;
2198	*CFG = YAML::Syck::Load <$fh>;	2767	*CFG = YAML::Syck::Load <$fh>;
2199		2768
…		…
2213		2782
2214	sub main {	2783	sub main {
2215	# we must not ever block the main coroutine	2784	# we must not ever block the main coroutine
2216	local $Coro::idle = sub {	2785	local $Coro::idle = sub {
2217	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2786	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2787	(async {
2218	async { Event::one_event };	2788	Event::one_event;
		2789	})->prio (Coro::PRIO_MAX);
2219	};	2790	};
2220		2791
2221	cfg_load;	2792	cfg_load;
2222	db_load;	2793	db_init;
2223	load_extensions;	2794	load_extensions;
		2795
		2796	$TICK_WATCHER->start;
2224	Event::loop;	2797	Event::loop;
2225	}	2798	}
2226		2799
2227	#############################################################################	2800	#############################################################################
2228	# initialisation and cleanup	2801	# initialisation and cleanup
2229		2802
2230	# install some emergency cleanup handlers	2803	# install some emergency cleanup handlers
2231	BEGIN {	2804	BEGIN {
2232	for my $signal (qw(INT HUP TERM)) {	2805	for my $signal (qw(INT HUP TERM)) {
2233	Event->signal (	2806	Event->signal (
		2807	reentrant => 0,
2234	data => WF_AUTOCANCEL,	2808	data => WF_AUTOCANCEL,
2235	signal => $signal,	2809	signal => $signal,
		2810	prio => 0,
2236	cb => sub {	2811	cb => sub {
2237	cf::cleanup "SIG$signal";	2812	cf::cleanup "SIG$signal";
2238	},	2813	},
2239	);	2814	);
2240	}	2815	}
		2816	}
		2817
		2818	sub write_runtime {
		2819	my $runtime = "$LOCALDIR/runtime";
		2820
		2821	# first touch the runtime file to show we are still running:
		2822	# the fsync below can take a very very long time.
		2823
		2824	IO::AIO::aio_utime $runtime, undef, undef;
		2825
		2826	my $guard = cf::lock_acquire "write_runtime";
		2827
		2828	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2829	or return;
		2830
		2831	my $value = $cf::RUNTIME + 90 + 10;
		2832	# 10 is the runtime save interval, for a monotonic clock
		2833	# 60 allows for the watchdog to kill the server.
		2834
		2835	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2836	and return;
		2837
		2838	# always fsync - this file is important
		2839	aio_fsync $fh
		2840	and return;
		2841
		2842	# touch it again to show we are up-to-date
		2843	aio_utime $fh, undef, undef;
		2844
		2845	close $fh
		2846	or return;
		2847
		2848	aio_rename "$runtime~", $runtime
		2849	and return;
		2850
		2851	warn "runtime file written.\n";
		2852
		2853	1
2241	}	2854	}
2242		2855
2243	sub emergency_save() {	2856	sub emergency_save() {
2244	my $freeze_guard = cf::freeze_mainloop;	2857	my $freeze_guard = cf::freeze_mainloop;
2245		2858
…		…
2262	my $map = $cf::MAP{$path} or next;	2875	my $map = $cf::MAP{$path} or next;
2263	$map->valid or next;	2876	$map->valid or next;
2264	$map->save;	2877	$map->save;
2265	}	2878	}
2266	warn "end emergency map save\n";	2879	warn "end emergency map save\n";
		2880
		2881	warn "begin emergency database checkpoint\n";
		2882	BDB::db_env_txn_checkpoint $DB_ENV;
		2883	warn "end emergency database checkpoint\n";
2267	};	2884	};
2268		2885
2269	warn "leave emergency perl save\n";	2886	warn "leave emergency perl save\n";
2270	}	2887	}
2271		2888
		2889	sub post_cleanup {
		2890	my ($make_core) = @_;
		2891
		2892	warn Carp::longmess "post_cleanup backtrace"
		2893	if $make_core;
		2894	}
		2895
2272	sub reload() {	2896	sub do_reload_perl() {
2273	# can/must only be called in main	2897	# can/must only be called in main
2274	if ($Coro::current != $Coro::main) {	2898	if ($Coro::current != $Coro::main) {
2275	warn "can only reload from main coroutine\n";	2899	warn "can only reload from main coroutine";
2276	return;	2900	return;
2277	}	2901	}
2278		2902
2279	warn "reloading...";	2903	warn "reloading...";
2280		2904
2281	warn "freezing server";	2905	warn "entering sync_job";
2282	my $guard = freeze_mainloop;	2906
		2907	cf::sync_job {
		2908	cf::write_runtime; # external watchdog should not bark
2283	cf::emergency_save;	2909	cf::emergency_save;
		2910	cf::write_runtime; # external watchdog should not bark
2284		2911
2285	warn "sync database to disk";	2912	warn "syncing database to disk";
2286	cf::db_sync;	2913	BDB::db_env_txn_checkpoint $DB_ENV;
2287	IO::AIO::flush;
2288		2914
2289	eval {
2290	# if anything goes wrong in here, we should simply crash as we already saved	2915	# if anything goes wrong in here, we should simply crash as we already saved
2291		2916
2292	warn "cancel all watchers";	2917	warn "cancelling all WF_AUTOCANCEL watchers";
2293	for (Event::all_watchers) {	2918	for (Event::all_watchers) {
2294	$_->cancel if $_->data & WF_AUTOCANCEL;	2919	$_->cancel if $_->data & WF_AUTOCANCEL;
2295	}	2920	}
2296		2921
		2922	warn "flushing outstanding aio requests";
		2923	for (;;) {
		2924	BDB::flush;
		2925	IO::AIO::flush;
		2926	Coro::cede;
		2927	last unless IO::AIO::nreqs || BDB::nreqs;
		2928	warn "iterate...";
		2929	}
		2930
		2931	++$RELOAD;
		2932
2297	warn "cancel all extension coros";	2933	warn "cancelling all extension coros";
2298	$_->cancel for values %EXT_CORO;	2934	$_->cancel for values %EXT_CORO;
2299	%EXT_CORO = ();	2935	%EXT_CORO = ();
2300		2936
2301	warn "remove commands";	2937	warn "removing commands";
2302	%COMMAND = ();	2938	%COMMAND = ();
2303		2939
2304	warn "remove ext commands";	2940	warn "removing ext/exti commands";
2305	%EXTCMD = ();	2941	%EXTCMD = ();
		2942	%EXTICMD = ();
2306		2943
2307	warn "unload/nuke all extensions";	2944	warn "unloading/nuking all extensions";
2308	for my $pkg (@EXTS) {	2945	for my $pkg (@EXTS) {
2309	warn "... unloading $pkg";	2946	warn "... unloading $pkg";
2310		2947
2311	if (my $cb = $pkg->can ("unload")) {	2948	if (my $cb = $pkg->can ("unload")) {
2312	eval {	2949	eval {
…		…
2317		2954
2318	warn "... nuking $pkg";	2955	warn "... nuking $pkg";
2319	Symbol::delete_package $pkg;	2956	Symbol::delete_package $pkg;
2320	}	2957	}
2321		2958
2322	warn "unload all perl modules loaded from $LIBDIR";	2959	warn "unloading all perl modules loaded from $LIBDIR";
2323	while (my ($k, $v) = each %INC) {	2960	while (my ($k, $v) = each %INC) {
2324	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2961	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325		2962
2326	warn "removing <$k>";	2963	warn "... unloading $k";
2327	delete $INC{$k};	2964	delete $INC{$k};
2328		2965
2329	$k =~ s/\.pm$//;	2966	$k =~ s/\.pm$//;
2330	$k =~ s/\//::/g;	2967	$k =~ s/\//::/g;
2331		2968
…		…
2334	}	2971	}
2335		2972
2336	Symbol::delete_package $k;	2973	Symbol::delete_package $k;
2337	}	2974	}
2338		2975
2339	warn "get rid of safe::, as good as possible";	2976	warn "getting rid of safe::, as good as possible";
2340	Symbol::delete_package "safe::$_"	2977	Symbol::delete_package "safe::$_"
2341	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2978	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342		2979
2343	warn "unload cf.pm \"a bit\"";	2980	warn "unloading cf.pm \"a bit\"";
2344	delete $INC{"cf.pm"};	2981	delete $INC{"cf.pm"};
		2982	delete $INC{"cf/pod.pm"};
2345		2983
2346	# don't, removes xs symbols, too,	2984	# don't, removes xs symbols, too,
2347	# and global variables created in xs	2985	# and global variables created in xs
2348	#Symbol::delete_package __PACKAGE__;	2986	#Symbol::delete_package __PACKAGE__;
2349		2987
		2988	warn "unload completed, starting to reload now";
		2989
2350	warn "reloading cf.pm";	2990	warn "reloading cf.pm";
2351	require cf;	2991	require cf;
2352	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2992	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2353		2993
2354	warn "load config and database again";	2994	warn "loading config and database again";
2355	cf::cfg_load;	2995	cf::cfg_load;
2356	cf::db_load;
2357		2996
2358	warn "load extensions";	2997	warn "loading extensions";
2359	cf::load_extensions;	2998	cf::load_extensions;
2360		2999
2361	warn "reattach attachments to objects/players";	3000	warn "reattaching attachments to objects/players";
2362	_global_reattach;	3001	_global_reattach; # objects, sockets
2363	warn "reattach attachments to maps";	3002	warn "reattaching attachments to maps";
2364	reattach $_ for values %MAP;	3003	reattach $_ for values %MAP;
2365	};	3004	warn "reattaching attachments to players";
		3005	reattach $_ for values %PLAYER;
2366		3006
2367	if ($@) {	3007	warn "leaving sync_job";
		3008
		3009	1
		3010	} or do {
2368	warn $@;	3011	warn $@;
2369	warn "error while reloading, exiting.";	3012	warn "error while reloading, exiting.";
2370	exit 1;	3013	exit 1;
2371	}	3014	};
2372		3015
2373	warn "reloaded";	3016	warn "reloaded";
2374	};	3017	};
2375		3018
		3019	our $RELOAD_WATCHER; # used only during reload
		3020
		3021	sub reload_perl() {
		3022	# doing reload synchronously and two reloads happen back-to-back,
		3023	# coro crashes during coro_state_free->destroy here.
		3024
		3025	$RELOAD_WATCHER ||= Event->timer (
		3026	reentrant => 0,
		3027	after => 0,
		3028	data => WF_AUTOCANCEL,
		3029	cb => sub {
		3030	do_reload_perl;
		3031	undef $RELOAD_WATCHER;
		3032	},
		3033	);
		3034	}
		3035
2376	register_command "reload" => sub {	3036	register_command "reload" => sub {
2377	my ($who, $arg) = @_;	3037	my ($who, $arg) = @_;
2378		3038
2379	if ($who->flag (FLAG_WIZ)) {	3039	if ($who->flag (FLAG_WIZ)) {
2380	$who->message ("start of reload.");
2381	reload;
2382	$who->message ("end of reload.");	3040	$who->message ("reloading server.");
		3041	async { reload_perl };
2383	}	3042	}
2384	};	3043	};
2385		3044
2386	unshift @INC, $LIBDIR;	3045	unshift @INC, $LIBDIR;
2387		3046
		3047	my $bug_warning = 0;
		3048
		3049	our @WAIT_FOR_TICK;
		3050	our @WAIT_FOR_TICK_BEGIN;
		3051
		3052	sub wait_for_tick {
		3053	return unless $TICK_WATCHER->is_active;
		3054	return if $Coro::current == $Coro::main;
		3055
		3056	my $signal = new Coro::Signal;
		3057	push @WAIT_FOR_TICK, $signal;
		3058	$signal->wait;
		3059	}
		3060
		3061	sub wait_for_tick_begin {
		3062	return unless $TICK_WATCHER->is_active;
		3063	return if $Coro::current == $Coro::main;
		3064
		3065	my $signal = new Coro::Signal;
		3066	push @WAIT_FOR_TICK_BEGIN, $signal;
		3067	$signal->wait;
		3068	}
		3069
		3070	my $min = 1e6;#d#
		3071	my $avg = 10;
2388	$TICK_WATCHER = Event->timer (	3072	$TICK_WATCHER = Event->timer (
2389	reentrant => 0,	3073	reentrant => 0,
		3074	parked => 1,
2390	prio => 0,	3075	prio => 0,
2391	at => $NEXT_TICK || $TICK,	3076	at => $NEXT_TICK || $TICK,
2392	data => WF_AUTOCANCEL,	3077	data => WF_AUTOCANCEL,
2393	cb => sub {	3078	cb => sub {
		3079	if ($Coro::current != $Coro::main) {
		3080	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3081	unless ++$bug_warning > 10;
		3082	return;
		3083	}
		3084
2394	$NOW = Event::time;	3085	$NOW = $tick_start = Event::time;
2395		3086
2396	cf::server_tick; # one server iteration	3087	cf::server_tick; # one server iteration
		3088
		3089	0 && sync_job {#d#
		3090	for(1..10) {
		3091	my $t = Event::time;
		3092	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3093	or die;
		3094
		3095	$map->width (50);
		3096	$map->height (50);
		3097	$map->alloc;
		3098	$map->_load_objects ("/tmp/x.map", 1);
		3099	my $t = Event::time - $t;
		3100
		3101	#next unless $t < 0.0013;#d#
		3102	if ($t < $min) {
		3103	$min = $t;
		3104	}
		3105	$avg = $avg * 0.99 + $t * 0.01;
		3106	}
		3107	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3108	exit 0;
		3109	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3110	};
		3111
2397	$RUNTIME += $TICK;	3112	$RUNTIME += $TICK;
2398	$NEXT_TICK += $TICK;	3113	$NEXT_TICK += $TICK;
2399		3114
2400	$WAIT_FOR_TICK->broadcast;	3115	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2401	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3116	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3117	Coro::async_pool {
		3118	write_runtime
		3119	or warn "ERROR: unable to write runtime file: $!";
		3120	};
		3121	}
		3122
		3123	# my $AFTER = Event::time;
		3124	# warn $AFTER - $NOW;#d#
		3125
		3126	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3127	$sig->send;
		3128	}
		3129	while (my $sig = shift @WAIT_FOR_TICK) {
		3130	$sig->send;
		3131	}
		3132
		3133	$NOW = Event::time;
2402		3134
2403	# if we are delayed by four ticks or more, skip them all	3135	# if we are delayed by four ticks or more, skip them all
2404	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3136	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2405		3137
2406	$TICK_WATCHER->at ($NEXT_TICK);	3138	$TICK_WATCHER->at ($NEXT_TICK);
2407	$TICK_WATCHER->start;	3139	$TICK_WATCHER->start;
		3140
		3141	$LOAD = ($NOW - $tick_start) / $TICK;
		3142	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3143
		3144	_post_tick;
		3145
		3146
2408	},	3147	},
2409	);	3148	);
2410		3149
		3150	{
		3151	BDB::max_poll_time $TICK * 0.1;
		3152	$BDB_POLL_WATCHER = Event->io (
		3153	reentrant => 0,
		3154	fd => BDB::poll_fileno,
		3155	poll => 'r',
		3156	prio => 0,
		3157	data => WF_AUTOCANCEL,
		3158	cb => \&BDB::poll_cb,
		3159	);
		3160	BDB::min_parallel 8;
		3161
		3162	BDB::set_sync_prepare {
		3163	my $status;
		3164	my $current = $Coro::current;
		3165	(
		3166	sub {
		3167	$status = $!;
		3168	$current->ready; undef $current;
		3169	},
		3170	sub {
		3171	Coro::schedule while defined $current;
		3172	$! = $status;
		3173	},
		3174	)
		3175	};
		3176
		3177	unless ($DB_ENV) {
		3178	$DB_ENV = BDB::db_env_create;
		3179
		3180	cf::sync_job {
		3181	eval {
		3182	BDB::db_env_open
		3183	$DB_ENV,
		3184	$BDBDIR,
		3185	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3186	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3187	0666;
		3188
		3189	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3190
		3191	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3192	$DB_ENV->set_lk_detect;
		3193	};
		3194
		3195	cf::cleanup "db_env_open(db): $@" if $@;
		3196	};
		3197	}
		3198	}
		3199
		3200	{
		3201	IO::AIO::min_parallel 8;
		3202
		3203	undef $Coro::AIO::WATCHER;
2411	IO::AIO::max_poll_time $TICK * 0.2;	3204	IO::AIO::max_poll_time $TICK * 0.1;
2412
2413	$AIO_POLL_WATCHER = Event->io (	3205	$AIO_POLL_WATCHER = Event->io (
2414	fd => IO::AIO::poll_fileno,	3206	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,	3207	data => WF_AUTOCANCEL,
2423	after => 0,	3208	fd => IO::AIO::poll_fileno,
2424	interval => 10,	3209	poll => 'r',
2425	cb => sub {	3210	prio => 6,
2426	(Coro::unblock_sub {	3211	cb => \&IO::AIO::poll_cb,
2427	write_runtime	3212	);
2428	or warn "ERROR: unable to write runtime file: $!";	3213	}
		3214
		3215	my $_log_backtrace;
		3216
		3217	sub _log_backtrace {
		3218	my ($msg, @addr) = @_;
		3219
		3220	$msg =~ s/\n//;
		3221
		3222	# limit the # of concurrent backtraces
		3223	if ($_log_backtrace < 2) {
		3224	++$_log_backtrace;
		3225	async {
		3226	my @bt = fork_call {
		3227	@addr = map { sprintf "%x", $_ } @addr;
		3228	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3229	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3230	or die "addr2line: $!";
		3231
		3232	my @funcs;
		3233	my @res = <$fh>;
		3234	chomp for @res;
		3235	while (@res) {
		3236	my ($func, $line) = splice @res, 0, 2, ();
		3237	push @funcs, "[$func] $line";
		3238	}
		3239
		3240	@funcs
		3241	};
		3242
		3243	LOG llevInfo, "[ABT] $msg\n";
		3244	LOG llevInfo, "[ABT] $_\n" for @bt;
		3245	--$_log_backtrace;
2429	})->();	3246	};
		3247	} else {
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] [suppressed]\n";
2430	},	3250	}
2431	);	3251	}
		3252
		3253	# load additional modules
		3254	use cf::pod;
2432		3255
2433	END { cf::emergency_save }	3256	END { cf::emergency_save }
2434		3257
2435	1	3258	1
2436		3259

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