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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.168 by root, Sun Jan 14 00:37:14 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
…		…
683	# object support	897	# object support
684		898
685	sub reattach {	899	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
688		904
689	my $registry = $obj->registry;	905	my $registry = $obj->registry;
690		906
691	@$registry = ();	907	@$registry = ();
692		908
…		…
739	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
740		956
741	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
742	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
743	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
744	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
745	close $fh;	961	close $fh;
746		962
747	if (@$objs) {	963	if (@$objs) {
748	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) {
749	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
750	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
751	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
752	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	969	close $fh;
754	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
755	}	971	}
756	} else {	972	} else {
757	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
789	or return;	1005	or return;
790	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
791	}	1007	}
792		1008
793	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
794	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
795	return ($data, $av);	1011	return ($data, $av);
796	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
797		1019
798	#############################################################################	1020	#############################################################################
799	# command handling &c	1021	# command handling &c
800		1022
801	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
814	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
815	}	1037	}
816		1038
817	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
818		1040
819	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.
820		1046
821	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
822	called.	1048	called.
823		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
824	=cut	1061	=cut
825		1062
826	sub register_extcmd {	1063	sub register_extcmd {
827	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
828		1065
829	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
830	}	1073	}
831		1074
832	cf::player->attach (	1075	cf::player->attach (
833	on_command => sub {	1076	on_command => sub {
834	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
843	cf::override;	1086	cf::override;
844	},	1087	},
845	on_extcmd => sub {	1088	on_extcmd => sub {
846	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
847		1090
848	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
849		1092
850	if (ref $msg) {	1093	if (ref $msg) {
851	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
852	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
853	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
859		1102
860	cf::override;	1103	cf::override;
861	},	1104	},
862	);	1105	);
863		1106
864	sub load_extension {
865	my ($path) = @_;
866
867	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
868	my $base = $1;
869	my $pkg = $1;
870	$pkg =~ s/[^[:word:]]/_/g;
871	$pkg = "ext::$pkg";
872
873	warn "... loading '$path' into '$pkg'\n";
874
875	open my $fh, "<:utf8", $path
876	or die "$path: $!";
877
878	my $source =
879	"package $pkg; use strict; use utf8;\n"
880	. "#line 1 \"$path\"\n{\n"
881	. (do { local $/; <$fh> })
882	. "\n};\n1";
883
884	unless (eval $source) {
885	my $msg = $@ ? "$path: $@\n"
886	: "extension disabled.\n";
887	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
888	warn $@;
889	warn "mandatory extension failed to load, exiting.\n";
890	exit 1;
891	}
892	die $@;
893	}
894
895	push @EXTS, $pkg;
896	}
897
898	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
899	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
900	next unless -r $ext;	1112	next unless -r $path;
901	eval {	1113
902	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;
903	1	1171	}
904	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
905	}	1177	};
906	}	1178	}
907		1179
908	#############################################################################	1180	#############################################################################
909		1181
		1182	=back
		1183
910	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
911		1185
912	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
913		1187
914	=cut	1188	=cut
…		…
926	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
927		1201
928	=cut	1202	=cut
929		1203
930	sub playerdir($) {	1204	sub playerdir($) {
931	cf::localdir	1205	"$PLAYERDIR/"
932	. "/"
933	. cf::playerdir
934	. "/"
935	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
936	}	1207	}
937		1208
938	sub path($) {	1209	sub path($) {
939	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
940		1211
941	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
942	}	1213	}
943		1214
944	sub find_active($) {	1215	sub find_active($) {
945	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
946	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
949		1220
950	sub exists($) {	1221	sub exists($) {
951	my ($login) = @_;	1222	my ($login) = @_;
952		1223
953	$cf::PLAYER{$login}	1224	$cf::PLAYER{$login}
954	or cf::sync_job { !aio_stat $login }	1225	or cf::sync_job { !aio_stat path $login }
955	}	1226	}
956		1227
957	sub find($) {	1228	sub find($) {
958	return $cf::PLAYER{$_[0]} || do {	1229	return $cf::PLAYER{$_[0]} || do {
959	my $login = $_[0];	1230	my $login = $_[0];
960		1231
961	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
962		1233
963	$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
964	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
965	or return;	1243	or return;
966	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
967	}	1245	}
968	}	1246	}
…		…
1005		1283
1006	=cut	1284	=cut
1007		1285
1008	sub quit_character {	1286	sub quit_character {
1009	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1010		1290
1011	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1012	$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
1013		1293
1014	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1019	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1020	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1021	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1022	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1023	$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
1024	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;
1025	}	1325	}
1026		1326
1027	=item cf::player::list_logins	1327	=item cf::player::list_logins
1028		1328
1029	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
1030	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1031		1331
1032	=cut	1332	=cut
1033		1333
1034	sub list_logins {	1334	sub list_logins {
1035	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1036	or return [];	1336	or return [];
1037		1337
1038	my @logins;	1338	my @logins;
1039		1339
1040	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1057	=cut	1357	=cut
1058		1358
1059	sub maps($) {	1359	sub maps($) {
1060	my ($pl) = @_;	1360	my ($pl) = @_;
1061		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
1062	my $files = aio_readdir playerdir $pl	1364	my $files = aio_readdir playerdir $pl
1063	or return;	1365	or return;
1064		1366
1065	my @paths;	1367	my @paths;
1066		1368
1067	for (@$files) {	1369	for (@$files) {
1068	utf8::decode $_;	1370	utf8::decode $_;
1069	next if /\.(?:pl|pst)$/;	1371	next if /\.(?:pl|pst)$/;
1070	next unless /^$PATH_SEP/o;	1372	next unless /^$PATH_SEP/o;
1071		1373
1072	s/\.map$//;	1374	push @paths, cf::map::normalise "~$pl/$_";
1073	push @paths, "~" . $pl->ob->name . "/" . $_;
1074	}	1375	}
1075		1376
1076	\@paths	1377	\@paths
1077	}	1378	}
1078		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
1079	=item $player->ext_reply ($msgid, $msgtype, %msg)	1427	=item $player->ext_reply ($msgid, %msg)
1080		1428
1081	Sends an ext reply to the player.	1429	Sends an ext reply to the player.
1082		1430
1083	=cut	1431	=cut
1084		1432
1085	sub ext_reply($$$%) {	1433	sub ext_reply($$%) {
1086	my ($self, $id, %msg) = @_;	1434	my ($self, $id, %msg) = @_;
1087		1435
1088	$msg{msgid} = $id;	1436	$msg{msgid} = $id;
1089		1437	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1090	$self->send ("ext " . cf::to_json \%msg);
1091	}	1438	}
1092		1439
1093	package cf;	1440	=item $player->ext_event ($type, %msg)
		1441
		1442	Sends an ext event to the client.
		1443
		1444	=cut
		1445
		1446	sub ext_event($$%) {
		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	}
1094		1480
1095	=back	1481	=back
1096
1097		1482
1098	=head3 cf::map	1483	=head3 cf::map
1099		1484
1100	=over 4	1485	=over 4
1101		1486
…		…
1105		1490
1106	use Fcntl;	1491	use Fcntl;
1107	use Coro::AIO;	1492	use Coro::AIO;
1108		1493
1109	use overload	1494	use overload
1110	'""' => \&as_string;	1495	'""' => \&as_string,
		1496	fallback => 1;
1111		1497
1112	our $MAX_RESET = 3600;	1498	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1499	our $DEFAULT_RESET = 3000;
1114		1500
1115	sub generate_random_map {	1501	sub generate_random_map {
1116	my ($self, $rmp) = @_;	1502	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1503	# mit "rum" bekleckern, nicht
1119	$self->_create_random_map (	1504	$self->_create_random_map (
1120	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1505	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1121	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1506	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1122	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1507	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1129	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1514	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1130	(cf::region::find $rmp->{region}), $rmp->{custom}	1515	(cf::region::find $rmp->{region}), $rmp->{custom}
1131	)	1516	)
1132	}	1517	}
1133		1518
		1519	=item cf::map->register ($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
1134	sub register {	1527	sub register {
1135	my (undef, $regex) = @_;	1528	my (undef, $regex, $prio) = @_;
1136	my $pkg = caller;	1529	my $pkg = caller;
1137		1530
1138	no strict;	1531	no strict;
1139	push @{"$pkg\::ISA"}, __PACKAGE__;	1532	push @{"$pkg\::ISA"}, __PACKAGE__;
1140		1533
1141	$EXT_MAP{$pkg} = qr<$regex>;	1534	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1142	}	1535	}
1143		1536
1144	# also paths starting with '/'	1537	# also paths starting with '/'
1145	$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	}
1146		1549
1147	sub normalise {	1550	sub normalise {
1148	my ($path, $base) = @_;	1551	my ($path, $base) = @_;
		1552
		1553	$path = "$path"; # make sure its a string
		1554
		1555	$path =~ s/\.map$//;
1149		1556
1150	# map plan:	1557	# map plan:
1151	#	1558	#
1152	# /! non-realised random map exit (special hack!)	1559	# /! non-realised random map exit (special hack!)
1153	# {... are special paths that are not being touched	1560	# {... are special paths that are not being touched
…		…
1181		1588
1182	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
1183		1590
1184	$path = normalise $path, $base;	1591	$path = normalise $path, $base;
1185		1592
1186	for my $pkg (keys %EXT_MAP) {	1593	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1187	if ($path =~ $EXT_MAP{$pkg}) {	1594	if ($path =~ $EXT_MAP{$pkg}[1]) {
1188	my $self = bless cf::map::new, $pkg;	1595	my $self = bless cf::map::new, $pkg;
1189	$self->{path} = $path; $self->path ($path);	1596	$self->{path} = $path; $self->path ($path);
1190	$self->init; # pass $1 etc.	1597	$self->init; # pass $1 etc.
1191	return $self;	1598	return $self;
1192	}	1599	}
1193	}	1600	}
1194		1601
1195	Carp::carp "unable to resolve path '$path'.";	1602	Carp::carp "unable to resolve path '$path' (base '$base').";
1196	()	1603	()
1197	}	1604	}
1198		1605
1199	sub init {	1606	sub init {
1200	my ($self) = @_;	1607	my ($self) = @_;
…		…
1215		1622
1216	# the original (read-only) location	1623	# the original (read-only) location
1217	sub load_path {	1624	sub load_path {
1218	my ($self) = @_;	1625	my ($self) = @_;
1219		1626
1220	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1627	"$MAPDIR/$self->{path}.map"
1221	}	1628	}
1222		1629
1223	# the temporary/swap location	1630	# the temporary/swap location
1224	sub save_path {	1631	sub save_path {
1225	my ($self) = @_;	1632	my ($self) = @_;
1226		1633
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1634	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1635	"$TMPDIR/$path.map"
1229	}	1636	}
1230		1637
1231	# the unique path, undef == no special unique path	1638	# the unique path, undef == no special unique path
1232	sub uniq_path {	1639	sub uniq_path {
1233	my ($self) = @_;	1640	my ($self) = @_;
1234		1641
1235	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1642	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1236	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1643	"$UNIQUEDIR/$path"
1237	}	1644	}
1238		1645
1239	# and all this just because we cannot iterate over	1646	# and all this just because we cannot iterate over
1240	# all maps in C++...	1647	# all maps in C++...
1241	sub change_all_map_light {	1648	sub change_all_map_light {
…		…
1243		1650
1244	$_->change_map_light ($change)	1651	$_->change_map_light ($change)
1245	for grep $_->outdoor, values %cf::MAP;	1652	for grep $_->outdoor, values %cf::MAP;
1246	}	1653	}
1247		1654
		1655	sub decay_objects {
		1656	my ($self) = @_;
		1657
		1658	return if $self->{deny_reset};
		1659
		1660	$self->do_decay_objects;
		1661	}
		1662
1248	sub unlink_save {	1663	sub unlink_save {
1249	my ($self) = @_;	1664	my ($self) = @_;
1250		1665
1251	utf8::encode (my $save = $self->save_path);	1666	utf8::encode (my $save = $self->save_path);
1252	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1667	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1253	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1254	}	1669	}
1255		1670
1256	sub load_header_from($) {	1671	sub load_header_from($) {
1257	my ($self, $path) = @_;	1672	my ($self, $path) = @_;
1258		1673
1259	utf8::encode $path;	1674	utf8::encode $path;
1260	aio_open $path, O_RDONLY, 0	1675	#aio_open $path, O_RDONLY, 0
1261	or return;	1676	# or return;
1262		1677
1263	$self->_load_header ($path)	1678	$self->_load_header ($path)
1264	or return;	1679	or return;
1265		1680
1266	$self->{load_path} = $path;	1681	$self->{load_path} = $path;
1267		1682
1268	1	1683	1
1269	}	1684	}
1270		1685
1271	sub load_orig {	1686	sub load_header_orig {
1272	my ($self) = @_;	1687	my ($self) = @_;
1273		1688
1274	$self->load_header_from ($self->load_path)	1689	$self->load_header_from ($self->load_path)
1275	}	1690	}
1276		1691
1277	sub load_temp {	1692	sub load_header_temp {
1278	my ($self) = @_;	1693	my ($self) = @_;
1279		1694
1280	$self->load_header_from ($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	$self->instantiate;
1281	}	1715	}
1282		1716
1283	sub load_header {	1717	sub load_header {
1284	my ($self) = @_;	1718	my ($self) = @_;
1285		1719
1286	if ($self->load_temp) {	1720	if ($self->load_header_temp) {
1287	$self->last_access ((delete $self->{last_access})	1721	$self->prepare_temp;
1288	|| $cf::RUNTIME); #d#
1289	# safety
1290	$self->{instantiate_time} = $cf::RUNTIME
1291	if $self->{instantiate_time} > $cf::RUNTIME;
1292	} else {	1722	} else {
1293	$self->load_orig	1723	$self->load_header_orig
1294	or return;	1724	or return;
1295		1725	$self->prepare_orig;
1296	$self->{load_original} = 1;
1297	$self->{instantiate_time} = $cf::RUNTIME;
1298	$self->last_access ($cf::RUNTIME);
1299	$self->instantiate;
1300	}	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;
1301		1733
1302	1	1734	1
1303	}	1735	}
1304		1736
1305	sub find;	1737	sub find;
…		…
1318	$map->{last_save} = $cf::RUNTIME;	1750	$map->{last_save} = $cf::RUNTIME;
1319		1751
1320	$map->load_header	1752	$map->load_header
1321	or return;	1753	or return;
1322		1754
1323	if ($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;
1324	$map->reset;	1758	$map->reset;
1325	undef $guard;	1759	undef $guard;
1326	$map = find $path	1760	return find $path;
1327	or return;
1328	}	1761	}
1329		1762
1330	$cf::MAP{$path} = $map	1763	$cf::MAP{$path} = $map
1331	}	1764	}
1332	}	1765	}
		1766
		1767	sub pre_load { }
		1768	sub post_load { }
1333		1769
1334	sub load {	1770	sub load {
1335	my ($self) = @_;	1771	my ($self) = @_;
1336		1772
		1773	local $self->{deny_reset} = 1; # loading can take a long time
		1774
1337	my $path = $self->{path};	1775	my $path = $self->{path};
		1776
		1777	{
1338	my $guard = cf::lock_acquire "map_load:$path";	1778	my $guard = cf::lock_acquire "map_load:$path";
1339		1779
1340	return if $self->in_memory != cf::MAP_SWAPPED;	1780	return if $self->in_memory != cf::MAP_SWAPPED;
1341		1781
1342	$self->in_memory (cf::MAP_LOADING);	1782	$self->in_memory (cf::MAP_LOADING);
1343		1783
1344	$self->alloc;	1784	$self->alloc;
1345	$self->_load_objects ($self->{load_path}, 1)
1346	or return;
1347		1785
1348	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1786	$self->pre_load;
1349	if delete $self->{load_original};
1350
1351	if (my $uniq = $self->uniq_path) {
1352	utf8::encode $uniq;
1353	if (aio_open $uniq, O_RDONLY, 0) {
1354	$self->clear_unique_items;
1355	$self->_load_objects ($uniq, 0);
1356	}
1357	}
1358
1359	Coro::cede;
1360
1361	# now do the right thing for maps
1362	$self->link_multipart_objects;
1363
1364	unless ($self->{deny_activate}) {
1365	$self->decay_objects;
1366	$self->fix_auto_apply;
1367	$self->update_buttons;
1368	Coro::cede;	1787	Coro::cede;
1369	$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;
1370	$self->difficulty ($self->estimate_difficulty)	1806	$self->difficulty ($self->estimate_difficulty)
1371	unless $self->difficulty;	1807	unless $self->difficulty;
1372	Coro::cede;	1808	Coro::cede;
		1809
		1810	unless ($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;
1373	$self->activate;	1817	$self->activate;
1374	}	1818	}
1375		1819
1376	$self->in_memory (cf::MAP_IN_MEMORY);	1820	$self->in_memory (cf::MAP_IN_MEMORY);
		1821	}
		1822
		1823	$self->post_load;
1377	}	1824	}
1378		1825
1379	sub customise_for {	1826	sub customise_for {
1380	my ($self, $ob) = @_;	1827	my ($self, $ob) = @_;
1381		1828
1382	return find "~" . $ob->name . "/" . $self->{path}	1829	return find "~" . $ob->name . "/" . $self->{path}
1383	if $self->per_player;	1830	if $self->per_player;
		1831
		1832	# return find "?party/" . $ob->name . "/" . $self->{path}
		1833	# if $self->per_party;
1384		1834
1385	$self	1835	$self
1386	}	1836	}
1387		1837
1388	# 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
…		…
1420		1870
1421	cf::sync_job { $map->load };	1871	cf::sync_job { $map->load };
1422	}	1872	}
1423		1873
1424	our %MAP_PREFETCH;	1874	our %MAP_PREFETCH;
1425	our $MAP_PREFETCHER = Coro::async {	1875	our $MAP_PREFETCHER = undef;
1426	while () {
1427	for my $path (keys %MAP_PREFETCH) {
1428	my $map = find $path
1429	or next;
1430	$map->load;
1431
1432	delete $MAP_PREFETCH{$path};
1433	}
1434	Coro::schedule;
1435	}
1436	};
1437		1876
1438	sub find_async {	1877	sub find_async {
1439	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1440		1879
1441	$path = normalise $path, $origin && $origin->{path};	1880	$path = normalise $path, $origin && $origin->{path};
1442		1881
1443	if (my $map = $cf::MAP{$path}) {	1882	if (my $map = $cf::MAP{$path}) {
1444	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1883	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1445	}	1884	}
1446		1885
1447	$MAP_PREFETCH{$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	};
1448	$MAP_PREFETCHER->ready;	1899	$MAP_PREFETCHER->prio (6);
1449		1900
1450	()	1901	()
1451	}	1902	}
1452		1903
1453	sub save {	1904	sub save {
…		…
1498		1949
1499	sub reset_at {	1950	sub reset_at {
1500	my ($self) = @_;	1951	my ($self) = @_;
1501		1952
1502	# TODO: safety, remove and allow resettable per-player maps	1953	# TODO: safety, remove and allow resettable per-player maps
1503	return 1e99 if $self->isa ("ext::map_per_player");
1504	return 1e99 if $self->{deny_reset};	1954	return 1e99 if $self->{deny_reset};
1505		1955
1506	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1956	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1507	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1957	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1508		1958
…		…
1513	my ($self) = @_;	1963	my ($self) = @_;
1514		1964
1515	$self->reset_at <= $cf::RUNTIME	1965	$self->reset_at <= $cf::RUNTIME
1516	}	1966	}
1517		1967
1518	sub rename {
1519	my ($self, $new_path) = @_;
1520
1521	normalise $new_path;
1522
1523	$self->unlink_save;
1524
1525	delete $cf::MAP{$self->path};
1526	$self->{path} = $new_path; $self->path ($self->{path});
1527	$cf::MAP{$self->path} = $self;
1528
1529	$self->save;
1530	}
1531
1532	sub reset {	1968	sub reset {
1533	my ($self) = @_;	1969	my ($self) = @_;
1534		1970
1535	my $lock = cf::lock_acquire "map_data:$self->{path}";	1971	my $lock = cf::lock_acquire "map_data:$self->{path}";
1536		1972
1537	return if $self->players;	1973	return if $self->players;
1538	return if $self->isa ("ext::map_per_player");#d#
1539		1974
1540	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	}
1541		1986
1542	delete $cf::MAP{$self->path};	1987	delete $cf::MAP{$self->path};
1543		1988
1544	$self->in_memory (cf::MAP_SWAPPED);
1545	$self->clear;	1989	$self->clear;
1546		1990
1547	$_->clear_links_to ($self) for values %cf::MAP;	1991	$_->clear_links_to ($self) for values %cf::MAP;
1548		1992
1549	$self->unlink_save;	1993	$self->unlink_save;
…		…
1553	my $nuke_counter = "aaaa";	1997	my $nuke_counter = "aaaa";
1554		1998
1555	sub nuke {	1999	sub nuke {
1556	my ($self) = @_;	2000	my ($self) = @_;
1557		2001
		2002	delete $cf::MAP{$self->path};
		2003
		2004	$self->unlink_save;
		2005
		2006	bless $self, "cf::map";
		2007	delete $self->{deny_reset};
1558	$self->{deny_save} = 1;	2008	$self->{deny_save} = 1;
1559	$self->reset_timeout (1);	2009	$self->reset_timeout (1);
1560	$self->rename ("{nuke}/" . ($nuke_counter++));	2010	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2011
		2012	$cf::MAP{$self->path} = $self;
		2013
1561	$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	]
1562	}	2051	}
1563		2052
1564	=item cf::map::unique_maps	2053	=item cf::map::unique_maps
1565		2054
1566	Returns an arrayref of paths of all shared maps that have	2055	Returns an arrayref of paths of all shared maps that have
1567	instantiated unique items. May block.	2056	instantiated unique items. May block.
1568		2057
1569	=cut	2058	=cut
1570		2059
1571	sub unique_maps() {	2060	sub unique_maps() {
1572	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2061	[
1573	or return;	2062	map {
1574
1575	my @paths;
1576
1577	for (@$files) {
1578	utf8::decode $_;	2063	utf8::decode $_;
1579	next if /\.pst$/;
1580	next unless /^$PATH_SEP/o;
1581
1582	s/\.map$//;	2064	/\.map$/
1583	push @paths, $_;	2065	? normalise $_
		2066	: ()
		2067	} @{ aio_readdir $UNIQUEDIR or [] }
1584	}	2068	]
1585
1586	\@paths
1587	}	2069	}
1588		2070
1589	package cf;	2071	package cf;
1590		2072
1591	=back	2073	=back
…		…
1637		2119
1638	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2120	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1639		2121
1640	if ($self->{record_replies}) {	2122	if ($self->{record_replies}) {
1641	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2123	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2124
1642	} 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 {
1643	$msg = $npc->name . " says: $msg" if $npc;	2138	$msg = $npc->name . " says: $msg" if $npc;
1644	$self->message ($msg, $flags);	2139	$self->message ($msg, $flags);
		2140	}
1645	}	2141	}
1646	}	2142	}
1647		2143
1648	=item $player_object->may ("access")	2144	=item $player_object->may ("access")
1649		2145
…		…
1682	=cut	2178	=cut
1683		2179
1684	sub link_map {	2180	sub link_map {
1685	unless ($LINK_MAP) {	2181	unless ($LINK_MAP) {
1686	$LINK_MAP = cf::map::find "{link}"	2182	$LINK_MAP = cf::map::find "{link}"
1687	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2183	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1688	$LINK_MAP->load;	2184	$LINK_MAP->load;
1689	}	2185	}
1690		2186
1691	$LINK_MAP	2187	$LINK_MAP
1692	}	2188	}
…		…
1697	$self->deactivate_recursive;	2193	$self->deactivate_recursive;
1698		2194
1699	return if UNIVERSAL::isa $self->map, "ext::map_link";	2195	return if UNIVERSAL::isa $self->map, "ext::map_link";
1700		2196
1701	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2197	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1702	if $self->map;	2198	if $self->map && $self->map->{path} ne "{link}";
1703		2199
1704	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2200	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1705	}	2201	}
1706		2202
1707	sub cf::object::player::leave_link {	2203	sub cf::object::player::leave_link {
1708	my ($self, $map, $x, $y) = @_;	2204	my ($self, $map, $x, $y) = @_;
		2205
		2206	return unless $self->contr->active;
1709		2207
1710	my $link_pos = delete $self->{_link_pos};	2208	my $link_pos = delete $self->{_link_pos};
1711		2209
1712	unless ($map) {	2210	unless ($map) {
1713	# restore original map position	2211	# restore original map position
…		…
1731	$map->load;	2229	$map->load;
1732	$map->load_diag;	2230	$map->load_diag;
1733		2231
1734	return unless $self->contr->active;	2232	return unless $self->contr->active;
1735	$self->activate_recursive;	2233	$self->activate_recursive;
		2234
		2235	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1736	$self->enter_map ($map, $x, $y);	2236	$self->enter_map ($map, $x, $y);
1737	}	2237	}
1738		2238
1739	cf::player->attach (
1740	on_logout => sub {
1741	my ($pl) = @_;
1742
1743	# abort map switching before logout
1744	if ($pl->ob->{_link_pos}) {
1745	cf::sync_job {
1746	$pl->ob->leave_link
1747	};
1748	}
1749	},
1750	on_login => sub {
1751	my ($pl) = @_;
1752
1753	# try to abort aborted map switching on player login :)
1754	# should happen only on crashes
1755	if ($pl->ob->{_link_pos}) {
1756	$pl->ob->enter_link;
1757	(async {
1758	# we need this sleep as the login has a concurrent enter_exit running
1759	# and this sleep increases chances of the player not ending up in scorn
1760	$pl->ob->reply (undef,
1761	"There was an internal problem at your last logout, "
1762	. "the server will try to bring you to your intended destination in a second.",
1763	cf::NDI_RED);
1764	Coro::Timer::sleep 1;
1765	$pl->ob->leave_link;
1766	})->prio (2);
1767	}
1768	},
1769	);
1770
1771	=item $player_object->goto ($path, $x, $y)	2239	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1772		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
1773	=cut	2246	=cut
		2247
		2248	our $GOTOGEN;
1774		2249
1775	sub cf::object::player::goto {	2250	sub cf::object::player::goto {
1776	my ($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;
1777		2255
1778	$self->enter_link;	2256	$self->enter_link;
1779		2257
1780	(async {	2258	(async {
		2259	my $map = eval {
1781	my $map = cf::map::find $path;	2260	my $map = cf::map::find $path;
		2261
		2262	if ($map) {
1782	$map = $map->customise_for ($self) if $map;	2263	$map = $map->customise_for ($self);
1783		2264	$map = $check->($map) if $check && $map;
1784	# warn "entering ", $map->path, " at ($x, $y)\n"	2265	} else {
1785	# if $map;
1786
1787	$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	}
1788		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};
1789	$self->leave_link ($map, $x, $y);	2279	$self->leave_link ($map, $x, $y);
		2280	}
1790	})->prio (1);	2281	})->prio (1);
1791	}	2282	}
1792		2283
1793	=item $player_object->enter_exit ($exit_object)	2284	=item $player_object->enter_exit ($exit_object)
1794		2285
…		…
1796		2287
1797	sub parse_random_map_params {	2288	sub parse_random_map_params {
1798	my ($spec) = @_;	2289	my ($spec) = @_;
1799		2290
1800	my $rmp = { # defaults	2291	my $rmp = { # defaults
1801	xsize => 10,	2292	xsize => (cf::rndm 15, 40),
1802	ysize => 10,	2293	ysize => (cf::rndm 15, 40),
		2294	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2295	#layout => string,
1803	};	2296	};
1804		2297
1805	for (split /\n/, $spec) {	2298	for (split /\n/, $spec) {
1806	my ($k, $v) = split /\s+/, $_, 2;	2299	my ($k, $v) = split /\s+/, $_, 2;
1807		2300
…		…
1811	$rmp	2304	$rmp
1812	}	2305	}
1813		2306
1814	sub prepare_random_map {	2307	sub prepare_random_map {
1815	my ($exit) = @_;	2308	my ($exit) = @_;
		2309
		2310	my $guard = cf::lock_acquire "exit_prepare:$exit";
1816		2311
1817	# all this does is basically replace the /! path by	2312	# all this does is basically replace the /! path by
1818	# a new random map path (?random/...) with a seed	2313	# a new random map path (?random/...) with a seed
1819	# that depends on the exit object	2314	# that depends on the exit object
1820		2315
1821	my $rmp = parse_random_map_params $exit->msg;	2316	my $rmp = parse_random_map_params $exit->msg;
1822		2317
1823	if ($exit->map) {	2318	if ($exit->map) {
1824	$rmp->{region} = $exit->map->region_name;	2319	$rmp->{region} = $exit->region->name;
1825	$rmp->{origin_map} = $exit->map->path;	2320	$rmp->{origin_map} = $exit->map->path;
1826	$rmp->{origin_x} = $exit->x;	2321	$rmp->{origin_x} = $exit->x;
1827	$rmp->{origin_y} = $exit->y;	2322	$rmp->{origin_y} = $exit->y;
1828	}	2323	}
1829		2324
1830	$rmp->{random_seed} ||= $exit->random_seed;	2325	$rmp->{random_seed} ||= $exit->random_seed;
1831		2326
1832	my $data = cf::to_json $rmp;	2327	my $data = cf::to_json $rmp;
1833	my $md5 = Digest::MD5::md5_hex $data;	2328	my $md5 = Digest::MD5::md5_hex $data;
		2329	my $meta = "$RANDOMDIR/$md5.meta";
1834		2330
1835	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) {
1836	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;
1837		2335
1838	$exit->slaying ("?random/$md5");	2336	$exit->slaying ("?random/$md5");
1839	$exit->msg (undef);	2337	$exit->msg (undef);
1840	}	2338	}
1841	}	2339	}
1842		2340
1843	sub cf::object::player::enter_exit {	2341	sub cf::object::player::enter_exit {
1844	my ($self, $exit) = @_;	2342	my ($self, $exit) = @_;
1845		2343
1846	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;
1847		2356
1848	$self->enter_link;	2357	$self->enter_link;
1849		2358
1850	(async {	2359	(async {
1851	$self->deactivate_recursive; # just to be sure	2360	$self->deactivate_recursive; # just to be sure
1852	unless (eval {	2361	unless (eval {
1853	prepare_random_map $exit	2362	$self->goto ($slaying, $hp, $sp);
1854	if $exit->slaying eq "/!";
1855
1856	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1857	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1858		2363
1859	1;	2364	1;
1860	}) {	2365	}) {
1861	$self->message ("Something went wrong deep within the crossfire server. "	2366	$self->message ("Something went wrong deep within the crossfire server. "
1862	. "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. "
1863	. "Please report this to the dungeon master!",	2368	. "Please report this to the dungeon master!",
1864	cf::NDI_UNIQUE | cf::NDI_RED);	2369	cf::NDI_UNIQUE | cf::NDI_RED);
1865		2370
1866	warn "ERROR in enter_exit: $@";	2371	warn "ERROR in enter_exit: $@";
1867	$self->leave_link;	2372	$self->leave_link;
1868	}	2373	}
1869	})->prio (1);	2374	})->prio (1);
…		…
1882		2387
1883	sub cf::client::send_drawinfo {	2388	sub cf::client::send_drawinfo {
1884	my ($self, $text, $flags) = @_;	2389	my ($self, $text, $flags) = @_;
1885		2390
1886	utf8::encode $text;	2391	utf8::encode $text;
1887	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2392	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1888	}	2393	}
1889		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	}
1890		2445
1891	=item $success = $client->query ($flags, "text", \&cb)	2446	=item $success = $client->query ($flags, "text", \&cb)
1892		2447
1893	Queues a query to the client, calling the given callback with	2448	Queues a query to the client, calling the given callback with
1894	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>,
1895	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>.
1896		2451
1897	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
1898	reliable at some point in the future.	2453	become reliable at some point in the future.
1899		2454
1900	=cut	2455	=cut
1901		2456
1902	sub cf::client::query {	2457	sub cf::client::query {
1903	my ($self, $flags, $text, $cb) = @_;	2458	my ($self, $flags, $text, $cb) = @_;
…		…
1911	utf8::encode $text;	2466	utf8::encode $text;
1912	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2467	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1913		2468
1914	$self->send_packet ($self->{query_queue}[0][0])	2469	$self->send_packet ($self->{query_queue}[0][0])
1915	if @{ $self->{query_queue} } == 1;	2470	if @{ $self->{query_queue} } == 1;
		2471
		2472	1
1916	}	2473	}
1917		2474
1918	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	},
1919	on_reply => sub {	2481	on_reply => sub {
1920	my ($ns, $msg) = @_;	2482	my ($ns, $msg) = @_;
1921		2483
1922	# this weird shuffling is so that direct followup queries	2484	# this weird shuffling is so that direct followup queries
1923	# get handled first	2485	# get handled first
1924	my $queue = delete $ns->{query_queue}	2486	my $queue = delete $ns->{query_queue}
1925	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
1926		2488
1927	(shift @$queue)->[1]->($msg);	2489	(shift @$queue)->[1]->($msg);
		2490	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1928		2491
1929	push @{ $ns->{query_queue} }, @$queue;	2492	push @{ $ns->{query_queue} }, @$queue;
1930		2493
1931	if (@{ $ns->{query_queue} } == @$queue) {	2494	if (@{ $ns->{query_queue} } == @$queue) {
1932	if (@$queue) {	2495	if (@$queue) {
…		…
1934	} else {	2497	} else {
1935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2498	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1936	}	2499	}
1937	}	2500	}
1938	},	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	},
1939	);	2520	);
1940		2521
1941	=item $client->async (\&cb)	2522	=item $client->async (\&cb)
1942		2523
1943	Create a new coroutine, running the specified callback. The coroutine will	2524	Create a new coroutine, running the specified callback. The coroutine will
…		…
1990		2571
1991	# here we export the classes and methods available to script code	2572	# here we export the classes and methods available to script code
1992		2573
1993	=pod	2574	=pod
1994		2575
1995	The following fucntions and emthods are available within a safe environment:	2576	The following functions and methods are available within a safe environment:
1996		2577
1997	cf::object contr pay_amount pay_player map	2578	cf::object contr pay_amount pay_player map
1998	cf::object::player player	2579	cf::object::player player
1999	cf::player peaceful	2580	cf::player peaceful
2000	cf::map trigger	2581	cf::map trigger
…		…
2081	=back	2662	=back
2082		2663
2083	=cut	2664	=cut
2084		2665
2085	#############################################################################	2666	#############################################################################
		2667	# the server's init and main functions
2086		2668
2087	=head2 EXTENSION DATABASE SUPPORT	2669	sub load_facedata($) {
		2670	my ($path) = @_;
2088		2671
2089	Crossfire maintains a very simple database for extension use. It can	2672	warn "loading facedata from $path\n";
2090	currently store anything that can be serialised using Storable, which
2091	excludes objects.
2092		2673
2093	The parameter C<$family> should best start with the name of the extension	2674	my $facedata;
2094	using it, it should be unique.	2675	0 < aio_load $path, $facedata
		2676	or die "$path: $!";
2095		2677
2096	=over 4	2678	$facedata = Coro::Storable::thaw $facedata;
2097		2679
2098	=item $hashref = cf::db_get $family	2680	$facedata->{version} == 2
		2681	or cf::cleanup "$path: version mismatch, cannot proceed.";
2099		2682
2100	Return a hashref for use by the extension C<$family>, which can be
2101	modified. After modifications, you have to call C<cf::db_dirty> or
2102	C<cf::db_sync>.
2103
2104	=item $value = cf::db_get $family => $key
2105
2106	Returns a single value from the database
2107
2108	=item cf::db_put $family => $hashref
2109
2110	Stores the given family hashref into the database. Updates are delayed, if
2111	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2112
2113	=item cf::db_put $family => $key => $value
2114
2115	Stores the given C<$value> in the family hash. Updates are delayed, if you
2116	want the data to be synced to disk immediately, use C<cf::db_sync>.
2117
2118	=item cf::db_dirty
2119
2120	Marks the database as dirty, to be updated at a later time.
2121
2122	=item cf::db_sync
2123
2124	Immediately write the database to disk I<if it is dirty>.
2125
2126	=cut
2127
2128	our $DB;
2129
2130	{
2131	my $path = cf::localdir . "/database.pst";
2132
2133	sub db_load() {
2134	$DB = stat $path ? Storable::retrieve $path : { };
2135	}	2683	{
		2684	my $faces = $facedata->{faceinfo};
2136		2685
2137	my $pid;	2686	while (my ($face, $info) = each %$faces) {
2138		2687	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2139	sub db_save() {	2688	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2140	waitpid $pid, 0 if $pid;	2689	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2141	if (0 == ($pid = fork)) {	2690	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2142	$DB->{_meta}{version} = 1;	2691	Coro::cede;
2143	Storable::nstore $DB, "$path~";
2144	rename "$path~", $path;
2145	cf::_exit 0 if defined $pid;
2146	}
2147	}
2148
2149	my $dirty;
2150
2151	sub db_sync() {
2152	db_save if $dirty;
2153	undef $dirty;
2154	}
2155
2156	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2157	db_sync;
2158	});
2159
2160	sub db_dirty() {
2161	$dirty = 1;
2162	$idle->start;
2163	}
2164
2165	sub db_get($;$) {
2166	@_ >= 2
2167	? $DB->{$_[0]}{$_[1]}
2168	: ($DB->{$_[0]} ||= { })
2169	}
2170
2171	sub db_put($$;$) {
2172	if (@_ >= 3) {
2173	$DB->{$_[0]}{$_[1]} = $_[2];
2174	} else {
2175	$DB->{$_[0]} = $_[1];
2176	}
2177	db_dirty;
2178	}
2179
2180	cf::global->attach (
2181	prio => 10000,
2182	on_cleanup => sub {
2183	db_sync;
2184	},	2692	}
2185	);
2186	}
2187		2693
2188	#############################################################################	2694	while (my ($face, $info) = each %$faces) {
2189	# 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	}
2190		2761
2191	sub cfg_load {	2762	sub cfg_load {
2192	open my $fh, "<:utf8", cf::confdir . "/config"	2763	open my $fh, "<:utf8", "$CONFDIR/config"
2193	or return;	2764	or return;
2194		2765
2195	local $/;	2766	local $/;
2196	*CFG = YAML::Syck::Load <$fh>;	2767	*CFG = YAML::Syck::Load <$fh>;
2197		2768
…		…
2211		2782
2212	sub main {	2783	sub main {
2213	# we must not ever block the main coroutine	2784	# we must not ever block the main coroutine
2214	local $Coro::idle = sub {	2785	local $Coro::idle = sub {
2215	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 {
2216	async { Event::one_event };	2788	Event::one_event;
		2789	})->prio (Coro::PRIO_MAX);
2217	};	2790	};
2218		2791
2219	cfg_load;	2792	cfg_load;
2220	db_load;	2793	db_init;
2221	load_extensions;	2794	load_extensions;
		2795
		2796	$TICK_WATCHER->start;
2222	Event::loop;	2797	Event::loop;
2223	}	2798	}
2224		2799
2225	#############################################################################	2800	#############################################################################
2226	# initialisation and cleanup	2801	# initialisation and cleanup
2227		2802
2228	# install some emergency cleanup handlers	2803	# install some emergency cleanup handlers
2229	BEGIN {	2804	BEGIN {
2230	for my $signal (qw(INT HUP TERM)) {	2805	for my $signal (qw(INT HUP TERM)) {
2231	Event->signal (	2806	Event->signal (
		2807	reentrant => 0,
2232	data => WF_AUTOCANCEL,	2808	data => WF_AUTOCANCEL,
2233	signal => $signal,	2809	signal => $signal,
		2810	prio => 0,
2234	cb => sub {	2811	cb => sub {
2235	cf::cleanup "SIG$signal";	2812	cf::cleanup "SIG$signal";
2236	},	2813	},
2237	);	2814	);
2238	}	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
2239	}	2854	}
2240		2855
2241	sub emergency_save() {	2856	sub emergency_save() {
2242	my $freeze_guard = cf::freeze_mainloop;	2857	my $freeze_guard = cf::freeze_mainloop;
2243		2858
…		…
2260	my $map = $cf::MAP{$path} or next;	2875	my $map = $cf::MAP{$path} or next;
2261	$map->valid or next;	2876	$map->valid or next;
2262	$map->save;	2877	$map->save;
2263	}	2878	}
2264	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 $DB_ENV;
		2883	warn "end emergency database checkpoint\n";
2265	};	2884	};
2266		2885
2267	warn "leave emergency perl save\n";	2886	warn "leave emergency perl save\n";
2268	}	2887	}
2269		2888
		2889	sub post_cleanup {
		2890	my ($make_core) = @_;
		2891
		2892	warn Carp::longmess "post_cleanup backtrace"
		2893	if $make_core;
		2894	}
		2895
2270	sub reload() {	2896	sub do_reload_perl() {
2271	# can/must only be called in main	2897	# can/must only be called in main
2272	if ($Coro::current != $Coro::main) {	2898	if ($Coro::current != $Coro::main) {
2273	warn "can only reload from main coroutine\n";	2899	warn "can only reload from main coroutine";
2274	return;	2900	return;
2275	}	2901	}
2276		2902
2277	warn "reloading...";	2903	warn "reloading...";
2278		2904
2279	warn "freezing server";	2905	warn "entering sync_job";
2280	my $guard = freeze_mainloop;	2906
		2907	cf::sync_job {
		2908	cf::write_runtime; # external watchdog should not bark
2281	cf::emergency_save;	2909	cf::emergency_save;
		2910	cf::write_runtime; # external watchdog should not bark
2282		2911
2283	warn "sync database to disk";	2912	warn "syncing database to disk";
2284	cf::db_sync;	2913	BDB::db_env_txn_checkpoint $DB_ENV;
2285	IO::AIO::flush;
2286		2914
2287	eval {
2288	# 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
2289		2916
2290	warn "cancel all watchers";	2917	warn "cancelling all WF_AUTOCANCEL watchers";
2291	for (Event::all_watchers) {	2918	for (Event::all_watchers) {
2292	$_->cancel if $_->data & WF_AUTOCANCEL;	2919	$_->cancel if $_->data & WF_AUTOCANCEL;
2293	}	2920	}
2294		2921
		2922	warn "flushing outstanding aio requests";
		2923	for (;;) {
		2924	BDB::flush;
		2925	IO::AIO::flush;
		2926	Coro::cede;
		2927	last unless IO::AIO::nreqs || BDB::nreqs;
		2928	warn "iterate...";
		2929	}
		2930
		2931	++$RELOAD;
		2932
2295	warn "cancel all extension coros";	2933	warn "cancelling all extension coros";
2296	$_->cancel for values %EXT_CORO;	2934	$_->cancel for values %EXT_CORO;
2297	%EXT_CORO = ();	2935	%EXT_CORO = ();
2298		2936
2299	warn "remove commands";	2937	warn "removing commands";
2300	%COMMAND = ();	2938	%COMMAND = ();
2301		2939
2302	warn "remove ext commands";	2940	warn "removing ext/exti commands";
2303	%EXTCMD = ();	2941	%EXTCMD = ();
		2942	%EXTICMD = ();
2304		2943
2305	warn "unload/nuke all extensions";	2944	warn "unloading/nuking all extensions";
2306	for my $pkg (@EXTS) {	2945	for my $pkg (@EXTS) {
2307	warn "... unloading $pkg";	2946	warn "... unloading $pkg";
2308		2947
2309	if (my $cb = $pkg->can ("unload")) {	2948	if (my $cb = $pkg->can ("unload")) {
2310	eval {	2949	eval {
…		…
2315		2954
2316	warn "... nuking $pkg";	2955	warn "... nuking $pkg";
2317	Symbol::delete_package $pkg;	2956	Symbol::delete_package $pkg;
2318	}	2957	}
2319		2958
2320	warn "unload all perl modules loaded from $LIBDIR";	2959	warn "unloading all perl modules loaded from $LIBDIR";
2321	while (my ($k, $v) = each %INC) {	2960	while (my ($k, $v) = each %INC) {
2322	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2961	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2323		2962
2324	warn "removing <$k>";	2963	warn "... unloading $k";
2325	delete $INC{$k};	2964	delete $INC{$k};
2326		2965
2327	$k =~ s/\.pm$//;	2966	$k =~ s/\.pm$//;
2328	$k =~ s/\//::/g;	2967	$k =~ s/\//::/g;
2329		2968
…		…
2332	}	2971	}
2333		2972
2334	Symbol::delete_package $k;	2973	Symbol::delete_package $k;
2335	}	2974	}
2336		2975
2337	warn "get rid of safe::, as good as possible";	2976	warn "getting rid of safe::, as good as possible";
2338	Symbol::delete_package "safe::$_"	2977	Symbol::delete_package "safe::$_"
2339	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);
2340		2979
2341	warn "unload cf.pm \"a bit\"";	2980	warn "unloading cf.pm \"a bit\"";
2342	delete $INC{"cf.pm"};	2981	delete $INC{"cf.pm"};
		2982	delete $INC{"cf/pod.pm"};
2343		2983
2344	# don't, removes xs symbols, too,	2984	# don't, removes xs symbols, too,
2345	# and global variables created in xs	2985	# and global variables created in xs
2346	#Symbol::delete_package __PACKAGE__;	2986	#Symbol::delete_package __PACKAGE__;
2347		2987
		2988	warn "unload completed, starting to reload now";
		2989
2348	warn "reloading cf.pm";	2990	warn "reloading cf.pm";
2349	require cf;	2991	require cf;
2350	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2992	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2351		2993
2352	warn "load config and database again";	2994	warn "loading config and database again";
2353	cf::cfg_load;	2995	cf::cfg_load;
2354	cf::db_load;
2355		2996
2356	warn "load extensions";	2997	warn "loading extensions";
2357	cf::load_extensions;	2998	cf::load_extensions;
2358		2999
2359	warn "reattach attachments to objects/players";	3000	warn "reattaching attachments to objects/players";
2360	_global_reattach;	3001	_global_reattach; # objects, sockets
2361	warn "reattach attachments to maps";	3002	warn "reattaching attachments to maps";
2362	reattach $_ for values %MAP;	3003	reattach $_ for values %MAP;
2363	};	3004	warn "reattaching attachments to players";
		3005	reattach $_ for values %PLAYER;
2364		3006
2365	if ($@) {	3007	warn "leaving sync_job";
		3008
		3009	1
		3010	} or do {
2366	warn $@;	3011	warn $@;
2367	warn "error while reloading, exiting.";	3012	warn "error while reloading, exiting.";
2368	exit 1;	3013	exit 1;
2369	}	3014	};
2370		3015
2371	warn "reloaded";	3016	warn "reloaded";
2372	};	3017	};
2373		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 $RELOAD_WATCHER;
		3032	},
		3033	);
		3034	}
		3035
2374	register_command "reload" => sub {	3036	register_command "reload" => sub {
2375	my ($who, $arg) = @_;	3037	my ($who, $arg) = @_;
2376		3038
2377	if ($who->flag (FLAG_WIZ)) {	3039	if ($who->flag (FLAG_WIZ)) {
2378	$who->message ("start of reload.");
2379	reload;
2380	$who->message ("end of reload.");	3040	$who->message ("reloading server.");
		3041	async { reload_perl };
2381	}	3042	}
2382	};	3043	};
2383		3044
2384	unshift @INC, $LIBDIR;	3045	unshift @INC, $LIBDIR;
2385		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;
2386	$TICK_WATCHER = Event->timer (	3072	$TICK_WATCHER = Event->timer (
2387	reentrant => 0,	3073	reentrant => 0,
		3074	parked => 1,
2388	prio => 0,	3075	prio => 0,
2389	at => $NEXT_TICK || $TICK,	3076	at => $NEXT_TICK || $TICK,
2390	data => WF_AUTOCANCEL,	3077	data => WF_AUTOCANCEL,
2391	cb => sub {	3078	cb => sub {
		3079	if ($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
2392	$NOW = Event::time;	3085	$NOW = $tick_start = Event::time;
2393		3086
2394	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
2395	$RUNTIME += $TICK;	3112	$RUNTIME += $TICK;
2396	$NEXT_TICK += $TICK;	3113	$NEXT_TICK += $TICK;
2397		3114
2398	$WAIT_FOR_TICK->broadcast;	3115	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2399	$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;
2400		3134
2401	# 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
2402	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3136	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2403		3137
2404	$TICK_WATCHER->at ($NEXT_TICK);	3138	$TICK_WATCHER->at ($NEXT_TICK);
2405	$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
2406	},	3147	},
2407	);	3148	);
2408		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;
2409	IO::AIO::max_poll_time $TICK * 0.2;	3204	IO::AIO::max_poll_time $TICK * 0.1;
2410
2411	$AIO_POLL_WATCHER = Event->io (	3205	$AIO_POLL_WATCHER = Event->io (
2412	fd => IO::AIO::poll_fileno,	3206	reentrant => 0,
2413	poll => 'r',
2414	prio => 5,
2415	data => WF_AUTOCANCEL,
2416	cb => \&IO::AIO::poll_cb,
2417	);
2418
2419	$WRITE_RUNTIME_WATCHER = Event->timer (
2420	data => WF_AUTOCANCEL,	3207	data => WF_AUTOCANCEL,
2421	after => 0,	3208	fd => IO::AIO::poll_fileno,
2422	interval => 10,	3209	poll => 'r',
2423	cb => sub {	3210	prio => 6,
2424	(Coro::unblock_sub {	3211	cb => \&IO::AIO::poll_cb,
2425	write_runtime	3212	);
2426	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;
2427	})->();	3246	};
		3247	} else {
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] [suppressed]\n";
2428	},	3250	}
2429	);	3251	}
		3252
		3253	# load additional modules
		3254	use cf::pod;
2430		3255
2431	END { cf::emergency_save }	3256	END { cf::emergency_save }
2432		3257
2433	1	3258	1
2434		3259

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