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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.211 by root, Tue Feb 13 16:23:32 2007 UTC vs.
Revision 1.284 by root, Sun Jun 24 04:15:42 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 3.5 ();	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
20	use BDB ();	25	use BDB ();
21	use Data::Dumper;	26	use Data::Dumper;
22	use Digest::MD5;	27	use Digest::MD5;
23	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
24	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	31	use Time::HiRes;
27	use Compress::LZF;	32	use Compress::LZF;
28		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		39
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		41
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
37		44
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
39		48
40	our %COMMAND = ();	49	our %COMMAND = ();
41	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
42		51
43	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	53	our %EXTCMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
47		56
		57	our $RELOAD; # number of reloads so far
48	our @EVENT;	58	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		59
51	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
52	our $TICK_WATCHER;	73	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
54	our $WRITE_RUNTIME_WATCHER;	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	76	our $NEXT_TICK;
56	our $NOW;	77	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		79
59	our $BDB_POLL_WATCHER;	80	our $BDB_POLL_WATCHER;
…		…
65	our $RUNTIME;	86	our $RUNTIME;
66		87
67	our %PLAYER; # all users	88	our %PLAYER; # all users
68	our %MAP; # all maps	89	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		91
76	# used to convert map paths into valid unix filenames by replacing / by ∕	92	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
		98
79	binmode STDOUT;	99	binmode STDOUT;
80	binmode STDERR;	100	binmode STDERR;
81		101
82	# read virtual server time, if available	102	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
87	}	107	}
88		108
89	mkdir cf::localdir;	109	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		111
96	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
97		113
98	sub cf::map::normalise;	114	sub cf::map::normalise;
99		115
…		…
110	=item $cf::RUNTIME	126	=item $cf::RUNTIME
111		127
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	129	every server tick.
114		130
115	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		134
117	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
119		139
120	=item $cf::NOW	140	=item $cf::NOW
121		141
122	The time of the last (current) server tick.	142	The time of the last (current) server tick.
123		143
124	=item $cf::TICK	144	=item $cf::TICK
125		145
126	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
127		157
128	=item %cf::CFG	158	=item %cf::CFG
129		159
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
131	from wherever your confdir points to.	161	from wherever your confdir points to.
132		162
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		164
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.
139		168
140	=back	169	=back
141		170
142	=cut	171	=cut
143		172
144	BEGIN {	173	BEGIN {
145	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	175	my $msg = join "", @_;
147	utf8::encode $msg;
148		176
149	$msg .= "\n"	177	$msg .= "\n"
150	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
151		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
152	LOG llevError, $msg;	183	LOG llevError, $msg;
153	};	184	};
154	}	185	}
155		186
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		194
163	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	196	# within the Safe compartment.
165	for my $pkg (qw(	197	for my $pkg (qw(
166	cf::global cf::attachable	198	cf::global cf::attachable
…		…
174	}	206	}
175		207
176	$Event::DIED = sub {	208	$Event::DIED = sub {
177	warn "error in event callback: @_";	209	warn "error in event callback: @_";
178	};	210	};
		211
		212	#############################################################################
179		213
180	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
181		215
182	=over 4	216	=over 4
183		217
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	236	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	237	$d
204	} || "[unable to dump $_[0]: '$@']";	238	} || "[unable to dump $_[0]: '$@']";
205	}	239	}
206		240
207	use JSON::Syck (); # TODO# replace by JSON::PC once working	241	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
208		242
209	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
210		244
211	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
212		246
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
221		248
222	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
223
224	=cut
225
226	sub to_json($) {
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
228	JSON::Syck::Dump $_[0]
229	}
230		250
231	=item cf::lock_wait $string	251	=item cf::lock_wait $string
232		252
233	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
234		254
…		…
240	returned.	260	returned.
241		261
242	Lock names should begin with a unique identifier (for example, cf::map::find	262	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
244		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
245	=cut	269	=cut
246		270
247	our %LOCK;	271	our %LOCK;
248		272
249	sub lock_wait($) {	273	sub lock_wait($) {
…		…
268	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
270	}	294	}
271	}	295	}
272		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
273	sub freeze_mainloop {	303	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
275		305
276	my $guard = Coro::guard {	306	my $guard = Coro::guard {
277	$TICK_WATCHER->start;	307	$TICK_WATCHER->start;
278	$WRITE_RUNTIME_WATCHER->start;
279	};	308	};
280	$WRITE_RUNTIME_WATCHER->stop;
281	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
282	$guard	310	$guard
283	}	311	}
284		312
285	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
292		320
293	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
294		322
295	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
296		324
297	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
298	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
300		329
301	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
302	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
303	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
304	fast or be very important.	333	fast or be very important.
…		…
307		336
308	sub sync_job(&) {	337	sub sync_job(&) {
309	my ($job) = @_;	338	my ($job) = @_;
310		339
311	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
312	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
314		345
315	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
316	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
327		358
328	while ($busy) {	359	while ($busy) {
329	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
330	}	361	}
331		362
		363	$time = Event::time - $time;
		364
		365	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		367
		368	$tick_start += $time; # do not account sync jobs to server load
		369
332	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
333	} else {	371	} else {
334	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
335		373
336	$job->()	374	$job->()
…		…
355	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
356		394
357	$coro	395	$coro
358	}	396	}
359		397
360	sub write_runtime {	398	=item fork_call { }, $args
361	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
362		399
363	my $runtime = cf::localdir . "/runtime";	400	Executes the given code block with the given arguments in a seperate
		401	process, returning the results. Everything must be serialisable with
		402	Coro::Storable. May, of course, block. Note that the executed sub may
		403	never block itself or use any form of Event handling.
364		404
365	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	=cut
366	or return;
367		406
368	my $value = $cf::RUNTIME + 90 + 10;	407	sub fork_call(&@) {
369	# 10 is the runtime save interval, for a monotonic clock	408	my ($cb, @args) = @_;
370	# 60 allows for the watchdog to kill the server.
371		409
372	(aio_write $fh, 0, (length $value), $value, 0) <= 0	410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
373	and return;	411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
374		414
375	# always fsync - this file is important	415	if (my $pid = fork) {
376	aio_fsync $fh
377	and return;
378
379	close $fh	416	close $fh2;
380	or return;
381		417
382	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
383	and return;	419	$res = Coro::Storable::thaw $res;
384		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
385	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		473	my $key = "$_[0]/$_[1]";
		474
		475	cf::sync_job {
		476	BDB::db_get $DB, undef, $key, my $data;
		477
		478	$! ? ()
		479	: $data
		480	}
		481	}
		482
		483	sub db_put($$$) {
		484	BDB::dbreq_pri 4;
		485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		486	}
		487
		488	=item cf::cache $id => [$paths...], $processversion => $process
		489
		490	Generic caching function that returns the value of the resource $id,
		491	caching and regenerating as required.
		492
		493	This function can block.
		494
		495	=cut
		496
		497	sub cache {
		498	my ($id, $src, $processversion, $process) = @_;
		499
		500	my $meta =
		501	join "\x00",
		502	$processversion,
		503	map {
		504	aio_stat $_
		505	and Carp::croak "$_: $!";
		506
		507	($_, (stat _)[7,9])
		508	} @$src;
		509
		510	my $dbmeta = db_get cache => "$id/meta";
		511	if ($dbmeta ne $meta) {
		512	# changed, we may need to process
		513
		514	my @data;
		515	my $md5;
		516
		517	for (0 .. $#$src) {
		518	0 <= aio_load $src->[$_], $data[$_]
		519	or Carp::croak "$src->[$_]: $!";
		520	}
		521
		522	# if processing is expensive, check
		523	# checksum first
		524	if (1) {
		525	$md5 =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	Coro::cede;
		530	($src->[$_], Digest::MD5::md5_hex $data[$_])
		531	} 0.. $#$src;
		532
		533
		534	my $dbmd5 = db_get cache => "$id/md5";
		535	if ($dbmd5 eq $md5) {
		536	db_put cache => "$id/meta", $meta;
		537
		538	return db_get cache => "$id/data";
		539	}
		540	}
		541
		542	my $t1 = Time::HiRes::time;
		543	my $data = $process->(\@data);
		544	my $t2 = Time::HiRes::time;
		545
		546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		547
		548	db_put cache => "$id/data", $data;
		549	db_put cache => "$id/md5" , $md5;
		550	db_put cache => "$id/meta", $meta;
		551
		552	return $data;
		553	}
		554
		555	db_get cache => "$id/data"
		556	}
		557
		558	=item cf::datalog type => key => value, ...
		559
		560	Log a datalog packet of the given type with the given key-value pairs.
		561
		562	=cut
		563
		564	sub datalog($@) {
		565	my ($type, %kv) = @_;
		566	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
386	}	567	}
387		568
388	=back	569	=back
389		570
390	=cut	571	=cut
…		…
397	attach callbacks/event handlers (a collection of which is called an "attachment")	578	attach callbacks/event handlers (a collection of which is called an "attachment")
398	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
399		580
400	In the following description, CLASS can be any of C<global>, C<object>	581	In the following description, CLASS can be any of C<global>, C<object>
401	C<player>, C<client> or C<map> (i.e. the attachable objects in	582	C<player>, C<client> or C<map> (i.e. the attachable objects in
402	crossfire+).	583	Crossfire TRT).
403		584
404	=over 4	585	=over 4
405		586
406	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
407		588
…		…
570	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
571		752
572	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
573	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
574	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
575	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
576		757
577	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
578	my $pkg = shift @arg;	759	my $pkg = shift @arg;
579		760
580	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
609	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
610	}	791	}
611		792
612	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
613	} else {	794	} else {
614	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
615	}	796	}
616		797
617	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
618	}	799	}
619		800
…		…
621	if (ref $_[0]) {	802	if (ref $_[0]) {
622	_object_attach @_;	803	_object_attach @_;
623	} else {	804	} else {
624	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
625	}	806	}
		807	_recalc_want;
626	};	808	};
627		809
628	# all those should be optimised	810	# all those should be optimised
629	sub cf::attachable::detach {	811	sub cf::attachable::detach {
630	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
633	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
634	reattach ($obj);	816	reattach ($obj);
635	} else {	817	} else {
636	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
637	}	819	}
		820	_recalc_want;
638	};	821	};
639		822
640	sub cf::attachable::attached {	823	sub cf::attachable::attached {
641	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
642		825
…		…
789	}	972	}
790	} else {	973	} else {
791	aio_unlink $filename;	974	aio_unlink $filename;
792	aio_unlink "$filename.pst";	975	aio_unlink "$filename.pst";
793	}	976	}
794
795	#d##TODO# nuke non .map-files if exist
796	if ($filename =~ s/\.map$//) {
797	aio_unlink $filename;
798	aio_unlink "$filename.pst";
799	}
800	}	977	}
801	}	978	}
802		979
803	sub object_freezer_as_string {	980	sub object_freezer_as_string {
804	my ($rdata, $objs) = @_;	981	my ($rdata, $objs) = @_;
…		…
810		987
811	sub object_thawer_load {	988	sub object_thawer_load {
812	my ($filename) = @_;	989	my ($filename) = @_;
813		990
814	my ($data, $av);	991	my ($data, $av);
815
816	#d#TODO remove .map if file does not exist
817	aio_stat $filename and $filename =~ s/\.map$//;
818		992
819	(aio_load $filename, $data) >= 0	993	(aio_load $filename, $data) >= 0
820	or return;	994	or return;
821		995
822	unless (aio_stat "$filename.pst") {	996	unless (aio_stat "$filename.pst") {
…		…
824	or return;	998	or return;
825	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
826	}	1000	}
827		1001
828	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
829	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
830	return ($data, $av);	1004	return ($data, $av);
831	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
832		1012
833	#############################################################################	1013	#############################################################################
834	# command handling &c	1014	# command handling &c
835		1015
836	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
849	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
850	}	1030	}
851		1031
852	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
853		1033
854	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
855		1035
856	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
857	called.	1037	called.
858		1038
859	=cut	1039	=cut
…		…
894		1074
895	cf::override;	1075	cf::override;
896	},	1076	},
897	);	1077	);
898		1078
899	sub load_extension {
900	my ($path) = @_;
901
902	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
903	my $base = $1;
904	my $pkg = $1;
905	$pkg =~ s/[^[:word:]]/_/g;
906	$pkg = "ext::$pkg";
907
908	warn "... loading '$path' into '$pkg'\n";
909
910	open my $fh, "<:utf8", $path
911	or die "$path: $!";
912
913	my $source =
914	"package $pkg; use strict; use utf8;\n"
915	. "#line 1 \"$path\"\n{\n"
916	. (do { local $/; <$fh> })
917	. "\n};\n1";
918
919	unless (eval $source) {
920	my $msg = $@ ? "$path: $@\n"
921	: "extension disabled.\n";
922	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
923	warn $@;
924	warn "mandatory extension failed to load, exiting.\n";
925	exit 1;
926	}
927	die $@;
928	}
929
930	push @EXTS, $pkg;
931	}
932
933	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
934	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
935	next unless -r $ext;	1084	next unless -r $path;
936	eval {	1085
937	load_extension $ext;	1086	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1087	my $base = $1;
		1088	my $pkg = $1;
		1089	$pkg =~ s/[^[:word:]]/_/g;
		1090	$pkg = "ext::$pkg";
		1091
		1092	open my $fh, "<:utf8", $path
		1093	or die "$path: $!";
		1094
		1095	my $source = do { local $/; <$fh> };
		1096
		1097	my %ext = (
		1098	path => $path,
		1099	base => $base,
		1100	pkg => $pkg,
		1101	);
		1102
		1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1104	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1105
		1106	$ext{source} =
		1107	"package $pkg; use strict; use utf8;\n"
		1108	. "#line 1 \"$path\"\n{\n"
		1109	. $source
		1110	. "\n};\n1";
		1111
		1112	$todo{$base} = \%ext;
		1113	}
		1114
		1115	my %done;
		1116	while (%todo) {
		1117	my $progress;
		1118
		1119	while (my ($k, $v) = each %todo) {
		1120	for (split /,\s*/, $v->{meta}{depends}) {
		1121	goto skip
		1122	unless exists $done{$_};
		1123	}
		1124
		1125	warn "... loading '$k' into '$v->{pkg}'\n";
		1126
		1127	unless (eval $v->{source}) {
		1128	my $msg = $@ ? "$v->{path}: $@\n"
		1129	: "$v->{base}: extension inactive.\n";
		1130
		1131	if (exists $v->{meta}{mandatory}) {
		1132	warn $msg;
		1133	warn "mandatory extension failed to load, exiting.\n";
		1134	exit 1;
		1135	}
		1136
		1137	warn $msg;
		1138	}
		1139
		1140	$done{$k} = delete $todo{$k};
		1141	push @EXTS, $v->{pkg};
		1142	$progress = 1;
938	1	1143	}
939	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
940	}	1149	};
941	}	1150	}
942		1151
943	#############################################################################	1152	#############################################################################
944		1153
		1154	=back
		1155
945	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
946		1157
947	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
948		1159
949	=cut	1160	=cut
…		…
961	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
962		1173
963	=cut	1174	=cut
964		1175
965	sub playerdir($) {	1176	sub playerdir($) {
966	cf::localdir	1177	"$PLAYERDIR/"
967	. "/"
968	. cf::playerdir
969	. "/"
970	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
971	}	1179	}
972		1180
973	sub path($) {	1181	sub path($) {
974	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
975		1183
976	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
977	}	1185	}
978		1186
979	sub find_active($) {	1187	sub find_active($) {
980	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
981	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
994	my $login = $_[0];	1202	my $login = $_[0];
995		1203
996	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
997		1205
998	$cf::PLAYER{$_[0]} || do {	1206	$cf::PLAYER{$_[0]} || do {
		1207	# rename old playerfiles to new ones
		1208	#TODO: remove when no longer required
		1209	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1210	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1211	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1212	aio_unlink +(playerdir $login) . "/$login.pl";
		1213
999	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
1000	or return;	1215	or return;
1001	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
1002	}	1217	}
1003	}	1218	}
…		…
1040		1255
1041	=cut	1256	=cut
1042		1257
1043	sub quit_character {	1258	sub quit_character {
1044	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1045		1262
1046	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1047	$pl->password ("*"); # this should lock out the player until we nuked the dir	1264	$pl->password ("*"); # this should lock out the player until we nuked the dir
1048		1265
1049	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1054	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1055	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1056	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1057	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1058	$pl->destroy;	1275	$pl->destroy;
		1276
		1277	my $prefix = qr<^~\Q$name\E/>;
		1278
		1279	# nuke player maps
		1280	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1281
1059	IO::AIO::aio_rmtree $temp;	1282	IO::AIO::aio_rmtree $temp;
		1283	}
		1284
		1285	=item $pl->kick
		1286
		1287	Kicks a player out of the game. This destroys the connection.
		1288
		1289	=cut
		1290
		1291	sub kick {
		1292	my ($pl, $kicker) = @_;
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1295	$pl->killer ("kicked");
		1296	$pl->ns->destroy;
1060	}	1297	}
1061		1298
1062	=item cf::player::list_logins	1299	=item cf::player::list_logins
1063		1300
1064	Returns am arrayref of all valid playernames in the system, can take a	1301	Returns am arrayref of all valid playernames in the system, can take a
1065	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1066		1303
1067	=cut	1304	=cut
1068		1305
1069	sub list_logins {	1306	sub list_logins {
1070	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1071	or return [];	1308	or return [];
1072		1309
1073	my @logins;	1310	my @logins;
1074		1311
1075	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1110	}	1347	}
1111		1348
1112	\@paths	1349	\@paths
1113	}	1350	}
1114		1351
		1352	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1353
		1354	Expand crossfire pod fragments into protocol xml.
		1355
		1356	=cut
		1357
		1358	sub expand_cfpod {
		1359	((my $self), (local $_)) = @_;
		1360
		1361	# escape & and <
		1362	s/&/&amp;/g;
		1363	s/(?<![BIUGH])</&lt;/g;
		1364
		1365	# this is buggy, it needs to properly take care of nested <'s
		1366
		1367	1 while
		1368	# replace B<>, I<>, U<> etc.
		1369	s/B<([^\>]*)>/<b>$1<\/b>/
		1370	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1371	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1372	# replace G<male|female> tags
		1373	|| s{G<([^>|]*)\|([^>]*)>}{
		1374	$self->gender ? $2 : $1
		1375	}ge
		1376	# replace H<hint text>
		1377	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1378
		1379	# create single paragraphs (very hackish)
		1380	s/(?<=\S)\n(?=\w)/ /g;
		1381
		1382	$_
		1383	}
		1384
1115	=item $player->ext_reply ($msgid, $msgtype, %msg)	1385	=item $player->ext_reply ($msgid, %msg)
1116		1386
1117	Sends an ext reply to the player.	1387	Sends an ext reply to the player.
1118		1388
1119	=cut	1389	=cut
1120		1390
1121	sub ext_reply($$$%) {	1391	sub ext_reply($$%) {
1122	my ($self, $id, %msg) = @_;	1392	my ($self, $id, %msg) = @_;
1123		1393
1124	$msg{msgid} = $id;	1394	$msg{msgid} = $id;
1125		1395
1126	$self->send ("ext " . cf::to_json \%msg);	1396	$self->send ("ext " . cf::to_json \%msg);
1127	}	1397	}
1128		1398
1129	package cf;	1399	=item $player->ext_event ($type, %msg)
		1400
		1401	Sends an ext event to the client.
		1402
		1403	=cut
		1404
		1405	sub ext_event($$%) {
		1406	my ($self, $type, %msg) = @_;
		1407
		1408	$self->ns->ext_event ($type, %msg);
		1409	}
		1410
		1411	=head3 cf::region
		1412
		1413	=over 4
		1414
		1415	=cut
		1416
		1417	package cf::region;
		1418
		1419	=item cf::region::find_by_path $path
		1420
		1421	Tries to decuce the likely region for a map knowing only its path.
		1422
		1423	=cut
		1424
		1425	sub find_by_path($) {
		1426	my ($path) = @_;
		1427
		1428	my ($match, $specificity);
		1429
		1430	for my $region (list) {
		1431	if ($region->match && $path =~ $region->match) {
		1432	($match, $specificity) = ($region, $region->specificity)
		1433	if $region->specificity > $specificity;
		1434	}
		1435	}
		1436
		1437	$match
		1438	}
1130		1439
1131	=back	1440	=back
1132
1133		1441
1134	=head3 cf::map	1442	=head3 cf::map
1135		1443
1136	=over 4	1444	=over 4
1137		1445
…		…
1192	my ($self, $merge) = @_;	1500	my ($self, $merge) = @_;
1193		1501
1194	# we have to keep some variables in memory intact	1502	# we have to keep some variables in memory intact
1195	local $self->{path};	1503	local $self->{path};
1196	local $self->{load_path};	1504	local $self->{load_path};
1197	local $self->{deny_save};
1198	local $self->{deny_reset};
1199		1505
1200	$self->SUPER::thawer_merge ($merge);	1506	$self->SUPER::thawer_merge ($merge);
1201	}	1507	}
1202		1508
1203	sub normalise {	1509	sub normalise {
…		…
1275		1581
1276	# the original (read-only) location	1582	# the original (read-only) location
1277	sub load_path {	1583	sub load_path {
1278	my ($self) = @_;	1584	my ($self) = @_;
1279		1585
1280	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1586	"$MAPDIR/$self->{path}.map"
1281	}	1587	}
1282		1588
1283	# the temporary/swap location	1589	# the temporary/swap location
1284	sub save_path {	1590	sub save_path {
1285	my ($self) = @_;	1591	my ($self) = @_;
1286		1592
1287	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1593	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1288	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1594	"$TMPDIR/$path.map"
1289	}	1595	}
1290		1596
1291	# the unique path, undef == no special unique path	1597	# the unique path, undef == no special unique path
1292	sub uniq_path {	1598	sub uniq_path {
1293	my ($self) = @_;	1599	my ($self) = @_;
1294		1600
1295	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1601	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1296	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1602	"$UNIQUEDIR/$path"
1297	}	1603	}
1298		1604
1299	# and all this just because we cannot iterate over	1605	# and all this just because we cannot iterate over
1300	# all maps in C++...	1606	# all maps in C++...
1301	sub change_all_map_light {	1607	sub change_all_map_light {
…		…
1303		1609
1304	$_->change_map_light ($change)	1610	$_->change_map_light ($change)
1305	for grep $_->outdoor, values %cf::MAP;	1611	for grep $_->outdoor, values %cf::MAP;
1306	}	1612	}
1307		1613
		1614	sub decay_objects {
		1615	my ($self) = @_;
		1616
		1617	return if $self->{deny_reset};
		1618
		1619	$self->do_decay_objects;
		1620	}
		1621
1308	sub unlink_save {	1622	sub unlink_save {
1309	my ($self) = @_;	1623	my ($self) = @_;
1310		1624
1311	utf8::encode (my $save = $self->save_path);	1625	utf8::encode (my $save = $self->save_path);
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1626	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1627	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1314
1315	#d#TODO remove .map and also nuke
1316	$save =~ s/\.map// or return;#d#
1317	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1318	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1319	}	1628	}
1320		1629
1321	sub load_header_from($) {	1630	sub load_header_from($) {
1322	my ($self, $path) = @_;	1631	my ($self, $path) = @_;
1323		1632
…		…
1373	$self->load_header_orig	1682	$self->load_header_orig
1374	or return;	1683	or return;
1375	$self->prepare_orig;	1684	$self->prepare_orig;
1376	}	1685	}
1377		1686
		1687	$self->{deny_reset} = 1
		1688	if $self->no_reset;
		1689
		1690	$self->default_region (cf::region::find_by_path $self->{path})
		1691	unless $self->default_region;
		1692
1378	1	1693	1
1379	}	1694	}
1380		1695
1381	sub find;	1696	sub find;
1382	sub find {	1697	sub find {
…		…
1394	$map->{last_save} = $cf::RUNTIME;	1709	$map->{last_save} = $cf::RUNTIME;
1395		1710
1396	$map->load_header	1711	$map->load_header
1397	or return;	1712	or return;
1398		1713
1399	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1714	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1400	# doing this can freeze the server in a sync job, obviously	1715	# doing this can freeze the server in a sync job, obviously
1401	#$cf::WAIT_FOR_TICK->wait;	1716	#$cf::WAIT_FOR_TICK->wait;
1402	$map->reset;	1717	$map->reset;
1403	undef $guard;	1718	undef $guard;
1404	return find $path;	1719	return find $path;
…		…
1415	my ($self) = @_;	1730	my ($self) = @_;
1416		1731
1417	local $self->{deny_reset} = 1; # loading can take a long time	1732	local $self->{deny_reset} = 1; # loading can take a long time
1418		1733
1419	my $path = $self->{path};	1734	my $path = $self->{path};
		1735
		1736	{
1420	my $guard = cf::lock_acquire "map_load:$path";	1737	my $guard = cf::lock_acquire "map_load:$path";
1421		1738
1422	return if $self->in_memory != cf::MAP_SWAPPED;	1739	return if $self->in_memory != cf::MAP_SWAPPED;
1423		1740
1424	$self->in_memory (cf::MAP_LOADING);	1741	$self->in_memory (cf::MAP_LOADING);
1425		1742
1426	$self->alloc;	1743	$self->alloc;
1427		1744
1428	$self->pre_load;	1745	$self->pre_load;
1429
1430	$self->_load_objects ($self->{load_path}, 1)
1431	or return;
1432
1433	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1434	if delete $self->{load_original};
1435
1436	if (my $uniq = $self->uniq_path) {
1437	utf8::encode $uniq;
1438	if (aio_open $uniq, O_RDONLY, 0) {
1439	$self->clear_unique_items;
1440	$self->_load_objects ($uniq, 0);
1441	}
1442	}
1443
1444	Coro::cede;
1445
1446	# now do the right thing for maps
1447	$self->link_multipart_objects;
1448
1449	unless ($self->{deny_activate}) {
1450	$self->decay_objects;
1451	$self->fix_auto_apply;
1452	$self->update_buttons;
1453	Coro::cede;	1746	Coro::cede;
1454	$self->set_darkness_map;	1747
		1748	$self->_load_objects ($self->{load_path}, 1)
		1749	or return;
		1750
		1751	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1752	if delete $self->{load_original};
		1753
		1754	if (my $uniq = $self->uniq_path) {
		1755	utf8::encode $uniq;
		1756	if (aio_open $uniq, O_RDONLY, 0) {
		1757	$self->clear_unique_items;
		1758	$self->_load_objects ($uniq, 0);
		1759	}
		1760	}
		1761
		1762	Coro::cede;
		1763	# now do the right thing for maps
		1764	$self->link_multipart_objects;
1455	$self->difficulty ($self->estimate_difficulty)	1765	$self->difficulty ($self->estimate_difficulty)
1456	unless $self->difficulty;	1766	unless $self->difficulty;
1457	Coro::cede;	1767	Coro::cede;
		1768
		1769	unless ($self->{deny_activate}) {
		1770	$self->decay_objects;
		1771	$self->fix_auto_apply;
		1772	$self->update_buttons;
		1773	Coro::cede;
		1774	$self->set_darkness_map;
		1775	Coro::cede;
1458	$self->activate;	1776	$self->activate;
		1777	}
		1778
		1779	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	1780	}
1460		1781
1461	$self->post_load;	1782	$self->post_load;
1462
1463	$self->in_memory (cf::MAP_IN_MEMORY);
1464	}	1783	}
1465		1784
1466	sub customise_for {	1785	sub customise_for {
1467	my ($self, $ob) = @_;	1786	my ($self, $ob) = @_;
1468		1787
1469	return find "~" . $ob->name . "/" . $self->{path}	1788	return find "~" . $ob->name . "/" . $self->{path}
1470	if $self->per_player;	1789	if $self->per_player;
		1790
		1791	# return find "?party/" . $ob->name . "/" . $self->{path}
		1792	# if $self->per_party;
1471		1793
1472	$self	1794	$self
1473	}	1795	}
1474		1796
1475	# find and load all maps in the 3x3 area around a map	1797	# find and load all maps in the 3x3 area around a map
…		…
1586		1908
1587	sub reset_at {	1909	sub reset_at {
1588	my ($self) = @_;	1910	my ($self) = @_;
1589		1911
1590	# TODO: safety, remove and allow resettable per-player maps	1912	# TODO: safety, remove and allow resettable per-player maps
1591	return 1e99 if $self->isa ("ext::map_per_player");#d#
1592	return 1e99 if $self->{deny_reset};	1913	return 1e99 if $self->{deny_reset};
1593		1914
1594	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1915	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1595	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1916	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1596		1917
…		…
1607	my ($self) = @_;	1928	my ($self) = @_;
1608		1929
1609	my $lock = cf::lock_acquire "map_data:$self->{path}";	1930	my $lock = cf::lock_acquire "map_data:$self->{path}";
1610		1931
1611	return if $self->players;	1932	return if $self->players;
1612	return if $self->isa ("ext::map_per_player");#d#
1613		1933
1614	warn "resetting map ", $self->path;#d#	1934	warn "resetting map ", $self->path;
1615		1935
1616	$self->in_memory (cf::MAP_SWAPPED);	1936	$self->in_memory (cf::MAP_SWAPPED);
1617		1937
1618	# need to save uniques path	1938	# need to save uniques path
1619	unless ($self->{deny_save}) {	1939	unless ($self->{deny_save}) {
…		…
1651	$cf::MAP{$self->path} = $self;	1971	$cf::MAP{$self->path} = $self;
1652		1972
1653	$self->reset; # polite request, might not happen	1973	$self->reset; # polite request, might not happen
1654	}	1974	}
1655		1975
		1976	=item $maps = cf::map::tmp_maps
		1977
		1978	Returns an arrayref with all map paths of currently instantiated and saved
		1979	maps. May block.
		1980
		1981	=cut
		1982
		1983	sub tmp_maps() {
		1984	[
		1985	map {
		1986	utf8::decode $_;
		1987	/\.map$/
		1988	? normalise $_
		1989	: ()
		1990	} @{ aio_readdir $TMPDIR or [] }
		1991	]
		1992	}
		1993
		1994	=item $maps = cf::map::random_maps
		1995
		1996	Returns an arrayref with all map paths of currently instantiated and saved
		1997	random maps. May block.
		1998
		1999	=cut
		2000
		2001	sub random_maps() {
		2002	[
		2003	map {
		2004	utf8::decode $_;
		2005	/\.map$/
		2006	? normalise "?random/$_"
		2007	: ()
		2008	} @{ aio_readdir $RANDOMDIR or [] }
		2009	]
		2010	}
		2011
1656	=item cf::map::unique_maps	2012	=item cf::map::unique_maps
1657		2013
1658	Returns an arrayref of paths of all shared maps that have	2014	Returns an arrayref of paths of all shared maps that have
1659	instantiated unique items. May block.	2015	instantiated unique items. May block.
1660		2016
1661	=cut	2017	=cut
1662		2018
1663	sub unique_maps() {	2019	sub unique_maps() {
1664	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2020	[
1665	or return;	2021	map {
1666
1667	my @paths;
1668
1669	for (@$files) {
1670	utf8::decode $_;	2022	utf8::decode $_;
1671	next if /\.pst$/;	2023	/\.map$/
1672	next unless /^$PATH_SEP/o;	2024	? normalise $_
1673		2025	: ()
1674	push @paths, cf::map::normalise $_;	2026	} @{ aio_readdir $UNIQUEDIR or [] }
1675	}	2027	]
1676
1677	\@paths
1678	}	2028	}
1679		2029
1680	package cf;	2030	package cf;
1681		2031
1682	=back	2032	=back
…		…
1728		2078
1729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2079	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1730		2080
1731	if ($self->{record_replies}) {	2081	if ($self->{record_replies}) {
1732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2082	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2083
1733	} else {	2084	} else {
		2085	my $pl = $self->contr;
		2086
		2087	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2088	my $diag = $pl->{npc_dialog};
		2089	$diag->{pl}->ext_reply (
		2090	$diag->{id},
		2091	msgtype => "reply",
		2092	msg => $diag->{pl}->expand_cfpod ($msg),
		2093	add_topics => []
		2094	);
		2095
		2096	} else {
1734	$msg = $npc->name . " says: $msg" if $npc;	2097	$msg = $npc->name . " says: $msg" if $npc;
1735	$self->message ($msg, $flags);	2098	$self->message ($msg, $flags);
		2099	}
1736	}	2100	}
1737	}	2101	}
1738		2102
1739	=item $player_object->may ("access")	2103	=item $player_object->may ("access")
1740		2104
…		…
1788	$self->deactivate_recursive;	2152	$self->deactivate_recursive;
1789		2153
1790	return if UNIVERSAL::isa $self->map, "ext::map_link";	2154	return if UNIVERSAL::isa $self->map, "ext::map_link";
1791		2155
1792	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2156	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1793	if $self->map;	2157	if $self->map && $self->map->{path} ne "{link}";
1794		2158
1795	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2159	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1796	}	2160	}
1797		2161
1798	sub cf::object::player::leave_link {	2162	sub cf::object::player::leave_link {
1799	my ($self, $map, $x, $y) = @_;	2163	my ($self, $map, $x, $y) = @_;
		2164
		2165	return unless $self->contr->active;
1800		2166
1801	my $link_pos = delete $self->{_link_pos};	2167	my $link_pos = delete $self->{_link_pos};
1802		2168
1803	unless ($map) {	2169	unless ($map) {
1804	# restore original map position	2170	# restore original map position
…		…
1822	$map->load;	2188	$map->load;
1823	$map->load_diag;	2189	$map->load_diag;
1824		2190
1825	return unless $self->contr->active;	2191	return unless $self->contr->active;
1826	$self->activate_recursive;	2192	$self->activate_recursive;
		2193
		2194	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1827	$self->enter_map ($map, $x, $y);	2195	$self->enter_map ($map, $x, $y);
1828	}	2196	}
1829		2197
1830	cf::player->attach (
1831	on_logout => sub {
1832	my ($pl) = @_;
1833
1834	# abort map switching before logout
1835	if ($pl->ob->{_link_pos}) {
1836	cf::sync_job {
1837	$pl->ob->leave_link
1838	};
1839	}
1840	},
1841	on_login => sub {
1842	my ($pl) = @_;
1843
1844	# try to abort aborted map switching on player login :)
1845	# should happen only on crashes
1846	if ($pl->ob->{_link_pos}) {
1847	$pl->ob->enter_link;
1848	(async {
1849	# we need this sleep as the login has a concurrent enter_exit running
1850	# and this sleep increases chances of the player not ending up in scorn
1851	$pl->ob->reply (undef,
1852	"There was an internal problem at your last logout, "
1853	. "the server will try to bring you to your intended destination in a second.",
1854	cf::NDI_RED);
1855	Coro::Timer::sleep 1;
1856	$pl->ob->leave_link;
1857	})->prio (2);
1858	}
1859	},
1860	);
1861
1862	=item $player_object->goto ($path, $x, $y)	2198	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1863		2199
		2200	Moves the player to the given map-path and coordinates by first freezing
		2201	her, loading and preparing them map, calling the provided $check callback
		2202	that has to return the map if sucecssful, and then unfreezes the player on
		2203	the new (success) or old (failed) map position.
		2204
1864	=cut	2205	=cut
		2206
		2207	our $GOTOGEN;
1865		2208
1866	sub cf::object::player::goto {	2209	sub cf::object::player::goto {
1867	my ($self, $path, $x, $y) = @_;	2210	my ($self, $path, $x, $y, $check) = @_;
		2211
		2212	# do generation counting so two concurrent goto's will be executed in-order
		2213	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1868		2214
1869	$self->enter_link;	2215	$self->enter_link;
1870		2216
1871	(async {	2217	(async {
1872	my $map = eval {	2218	my $map = eval {
1873	my $map = cf::map::find $path;	2219	my $map = cf::map::find $path;
		2220
		2221	if ($map) {
1874	$map = $map->customise_for ($self) if $map;	2222	$map = $map->customise_for ($self);
		2223	$map = $check->($map) if $check && $map;
		2224	} else {
		2225	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2226	}
		2227
1875	$map	2228	$map
		2229	};
		2230
		2231	if ($@) {
		2232	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2233	LOG llevError | logBacktrace, Carp::longmess $@;
1876	} or	2234	}
1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1878		2235
		2236	if ($gen == $self->{_goto_generation}) {
		2237	delete $self->{_goto_generation};
1879	$self->leave_link ($map, $x, $y);	2238	$self->leave_link ($map, $x, $y);
		2239	}
1880	})->prio (1);	2240	})->prio (1);
1881	}	2241	}
1882		2242
1883	=item $player_object->enter_exit ($exit_object)	2243	=item $player_object->enter_exit ($exit_object)
1884		2244
…		…
1923		2283
1924	$rmp->{random_seed} ||= $exit->random_seed;	2284	$rmp->{random_seed} ||= $exit->random_seed;
1925		2285
1926	my $data = cf::to_json $rmp;	2286	my $data = cf::to_json $rmp;
1927	my $md5 = Digest::MD5::md5_hex $data;	2287	my $md5 = Digest::MD5::md5_hex $data;
1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2288	my $meta = "$RANDOMDIR/$md5.meta";
1929		2289
1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2290	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1931	aio_write $fh, 0, (length $data), $data, 0;	2291	aio_write $fh, 0, (length $data), $data, 0;
1932	undef $fh;	2292	undef $fh;
1933	aio_rename "$meta~", $meta;	2293	aio_rename "$meta~", $meta;
…		…
1942		2302
1943	return unless $self->type == cf::PLAYER;	2303	return unless $self->type == cf::PLAYER;
1944		2304
1945	if ($exit->slaying eq "/!") {	2305	if ($exit->slaying eq "/!") {
1946	#TODO: this should de-fi-ni-te-ly not be a sync-job	2306	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2307	# the problem is that $exit might not survive long enough
		2308	# so it needs to be done right now, right here
1947	cf::sync_job { prepare_random_map $exit };	2309	cf::sync_job { prepare_random_map $exit };
1948	}	2310	}
1949		2311
1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2312	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1951	my $hp = $exit->stats->hp;	2313	my $hp = $exit->stats->hp;
…		…
1959	$self->goto ($slaying, $hp, $sp);	2321	$self->goto ($slaying, $hp, $sp);
1960		2322
1961	1;	2323	1;
1962	}) {	2324	}) {
1963	$self->message ("Something went wrong deep within the crossfire server. "	2325	$self->message ("Something went wrong deep within the crossfire server. "
1964	. "I'll try to bring you back to the map you were before. "	2326	. "I'll try to bring you back to the map you were before. "
1965	. "Please report this to the dungeon master!",	2327	. "Please report this to the dungeon master!",
1966	cf::NDI_UNIQUE | cf::NDI_RED);	2328	cf::NDI_UNIQUE | cf::NDI_RED);
1967		2329
1968	warn "ERROR in enter_exit: $@";	2330	warn "ERROR in enter_exit: $@";
1969	$self->leave_link;	2331	$self->leave_link;
1970	}	2332	}
1971	})->prio (1);	2333	})->prio (1);
…		…
1984		2346
1985	sub cf::client::send_drawinfo {	2347	sub cf::client::send_drawinfo {
1986	my ($self, $text, $flags) = @_;	2348	my ($self, $text, $flags) = @_;
1987		2349
1988	utf8::encode $text;	2350	utf8::encode $text;
1989	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2351	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1990	}	2352	}
1991		2353
		2354	=item $client->send_msg ($color, $type, $msg, [extra...])
		2355
		2356	Send a drawinfo or msg packet to the client, formatting the msg for the
		2357	client if neccessary. C<$type> should be a string identifying the type of
		2358	the message, with C<log> being the default. If C<$color> is negative, suppress
		2359	the message unless the client supports the msg packet.
		2360
		2361	=cut
		2362
		2363	sub cf::client::send_msg {
		2364	my ($self, $color, $type, $msg, @extra) = @_;
		2365
		2366	$msg = $self->pl->expand_cfpod ($msg);
		2367
		2368	if ($self->can_msg) {
		2369	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2370	} else {
		2371	# replace some tags by gcfclient-compatible ones
		2372	for ($msg) {
		2373	1 while
		2374	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2375	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2376	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2377	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2378	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${1}[\/color]/;
		2379	}
		2380
		2381	if ($color >= 0) {
		2382	if (0 && $msg =~ /\[/) {
		2383	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2384	} else {
		2385	s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2386	$self->send_packet ("drawinfo $color $msg")
		2387	}
		2388	}
		2389	}
		2390	}
		2391
		2392	=item $client->ext_event ($type, %msg)
		2393
		2394	Sends an exti event to the client.
		2395
		2396	=cut
		2397
		2398	sub cf::client::ext_event($$%) {
		2399	my ($self, $type, %msg) = @_;
		2400
		2401	$msg{msgtype} = "event_$type";
		2402	$self->send_packet ("ext " . cf::to_json \%msg);
		2403	}
1992		2404
1993	=item $success = $client->query ($flags, "text", \&cb)	2405	=item $success = $client->query ($flags, "text", \&cb)
1994		2406
1995	Queues a query to the client, calling the given callback with	2407	Queues a query to the client, calling the given callback with
1996	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2408	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2093		2505
2094	# here we export the classes and methods available to script code	2506	# here we export the classes and methods available to script code
2095		2507
2096	=pod	2508	=pod
2097		2509
2098	The following fucntions and emthods are available within a safe environment:	2510	The following functions and methods are available within a safe environment:
2099		2511
2100	cf::object contr pay_amount pay_player map	2512	cf::object contr pay_amount pay_player map
2101	cf::object::player player	2513	cf::object::player player
2102	cf::player peaceful	2514	cf::player peaceful
2103	cf::map trigger	2515	cf::map trigger
…		…
2184	=back	2596	=back
2185		2597
2186	=cut	2598	=cut
2187		2599
2188	#############################################################################	2600	#############################################################################
2189
2190	=head2 EXTENSION DATABASE SUPPORT
2191
2192	Crossfire maintains a very simple database for extension use. It can
2193	currently store anything that can be serialised using Storable, which
2194	excludes objects.
2195
2196	The parameter C<$family> should best start with the name of the extension
2197	using it, it should be unique.
2198
2199	=over 4
2200
2201	=item $value = cf::db_get $family => $key
2202
2203	Returns a single value from the database.
2204
2205	=item cf::db_put $family => $key => $value
2206
2207	Stores the given C<$value> in the family.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	sub db_init {
2214	unless ($DB) {
2215	$DB = BDB::db_create $DB_ENV;
2216
2217	cf::sync_job {
2218	eval {
2219	$DB->set_flags (BDB::CHKSUM);
2220
2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2223	cf::cleanup "db_open(db): $!" if $!;
2224	};
2225	cf::cleanup "db_open(db): $@" if $@;
2226	};
2227
2228	my $path = cf::localdir . "/database.pst";
2229	if (stat $path) {
2230	cf::sync_job {
2231	my $pst = Storable::retrieve $path;
2232
2233	cf::db_put (board => data => $pst->{board});
2234	cf::db_put (guildrules => data => $pst->{guildrules});
2235	cf::db_put (rent => balance => $pst->{rent}{balance});
2236	BDB::db_env_txn_checkpoint $DB_ENV;
2237
2238	unlink $path;
2239	};
2240	}
2241	}
2242	}
2243
2244	sub db_get($$) {
2245	my $key = "$_[0]/$_[1]";
2246
2247	cf::sync_job {
2248	BDB::db_get $DB, undef, $key, my $data;
2249
2250	$! ? ()
2251	: Compress::LZF::sthaw $data
2252	}
2253	}
2254
2255	sub db_put($$$) {
2256	BDB::dbreq_pri 4;
2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2258	}
2259
2260	#############################################################################
2261	# the server's init and main functions	2601	# the server's init and main functions
2262		2602
2263	sub load_resources {	2603	sub load_facedata($) {
2264	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2604	my ($path) = @_;
		2605
		2606	warn "loading facedata from $path\n";
		2607
		2608	my $facedata;
		2609	0 < aio_load $path, $facedata
		2610	or die "$path: $!";
		2611
		2612	$facedata = Coro::Storable::thaw $facedata;
		2613
		2614	$facedata->{version} == 2
		2615	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2616
		2617	{
		2618	my $faces = $facedata->{faceinfo};
		2619
		2620	while (my ($face, $info) = each %$faces) {
		2621	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2622	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2623	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2624	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2625	Coro::cede;
		2626	}
		2627
		2628	while (my ($face, $info) = each %$faces) {
		2629	next unless $info->{smooth};
		2630	my $idx = cf::face::find $face
		2631	or next;
		2632	if (my $smooth = cf::face::find $info->{smooth}) {
		2633	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2634	} else {
		2635	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2636	}
		2637	Coro::cede;
		2638	}
		2639	}
		2640
		2641	{
		2642	my $anims = $facedata->{animinfo};
		2643
		2644	while (my ($anim, $info) = each %$anims) {
		2645	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2646	Coro::cede;
		2647	}
		2648
		2649	cf::anim::invalidate_all; # d'oh
		2650	}
		2651
		2652	1
		2653	}
		2654
		2655	sub reload_regions {
		2656	load_resource_file "$MAPDIR/regions"
2265	or die "unable to load regions file\n";#d#	2657	or die "unable to load regions file\n";
		2658	}
		2659
		2660	sub reload_facedata {
		2661	load_facedata "$DATADIR/facedata"
		2662	or die "unable to load facedata\n";
		2663	}
		2664
		2665	sub reload_archetypes {
		2666	load_resource_file "$DATADIR/archetypes"
		2667	or die "unable to load archetypes\n";
		2668	}
		2669
		2670	sub reload_treasures {
		2671	load_resource_file "$DATADIR/treasures"
		2672	or die "unable to load treasurelists\n";
		2673	}
		2674
		2675	sub reload_resources {
		2676	warn "reloading resource files...\n";
		2677
		2678	reload_regions;
		2679	reload_facedata;
		2680	#reload_archetypes;#d#
		2681	reload_archetypes;
		2682	reload_treasures;
		2683
		2684	warn "finished reloading resource files\n";
		2685	}
		2686
		2687	sub init {
		2688	reload_resources;
2266	}	2689	}
2267		2690
2268	sub cfg_load {	2691	sub cfg_load {
2269	open my $fh, "<:utf8", cf::confdir . "/config"	2692	open my $fh, "<:utf8", "$CONFDIR/config"
2270	or return;	2693	or return;
2271		2694
2272	local $/;	2695	local $/;
2273	*CFG = YAML::Syck::Load <$fh>;	2696	*CFG = YAML::Syck::Load <$fh>;
2274		2697
…		…
2282	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2705	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2283	and die "WARNING: m(un)lockall failed: $!\n";	2706	and die "WARNING: m(un)lockall failed: $!\n";
2284	};	2707	};
2285	warn $@ if $@;	2708	warn $@ if $@;
2286	}	2709	}
2287	}
2288
2289	sub init {
2290	load_resources;
2291	}	2710	}
2292		2711
2293	sub main {	2712	sub main {
2294	# we must not ever block the main coroutine	2713	# we must not ever block the main coroutine
2295	local $Coro::idle = sub {	2714	local $Coro::idle = sub {
…		…
2323	},	2742	},
2324	);	2743	);
2325	}	2744	}
2326	}	2745	}
2327		2746
		2747	sub write_runtime {
		2748	my $runtime = "$LOCALDIR/runtime";
		2749
		2750	# first touch the runtime file to show we are still running:
		2751	# the fsync below can take a very very long time.
		2752
		2753	IO::AIO::aio_utime $runtime, undef, undef;
		2754
		2755	my $guard = cf::lock_acquire "write_runtime";
		2756
		2757	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2758	or return;
		2759
		2760	my $value = $cf::RUNTIME + 90 + 10;
		2761	# 10 is the runtime save interval, for a monotonic clock
		2762	# 60 allows for the watchdog to kill the server.
		2763
		2764	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2765	and return;
		2766
		2767	# always fsync - this file is important
		2768	aio_fsync $fh
		2769	and return;
		2770
		2771	# touch it again to show we are up-to-date
		2772	aio_utime $fh, undef, undef;
		2773
		2774	close $fh
		2775	or return;
		2776
		2777	aio_rename "$runtime~", $runtime
		2778	and return;
		2779
		2780	warn "runtime file written.\n";
		2781
		2782	1
		2783	}
		2784
2328	sub emergency_save() {	2785	sub emergency_save() {
2329	my $freeze_guard = cf::freeze_mainloop;	2786	my $freeze_guard = cf::freeze_mainloop;
2330		2787
2331	warn "enter emergency perl save\n";	2788	warn "enter emergency perl save\n";
2332		2789
…		…
2363		2820
2364	warn Carp::longmess "post_cleanup backtrace"	2821	warn Carp::longmess "post_cleanup backtrace"
2365	if $make_core;	2822	if $make_core;
2366	}	2823	}
2367		2824
2368	sub reload() {	2825	sub do_reload_perl() {
2369	# can/must only be called in main	2826	# can/must only be called in main
2370	if ($Coro::current != $Coro::main) {	2827	if ($Coro::current != $Coro::main) {
2371	warn "can only reload from main coroutine";	2828	warn "can only reload from main coroutine";
2372	return;	2829	return;
2373	}	2830	}
2374		2831
2375	warn "reloading...";	2832	warn "reloading...";
2376		2833
2377	warn "cancelling server ticker";	2834	warn "entering sync_job";
2378	$TICK_WATCHER->cancel;
2379		2835
		2836	cf::sync_job {
		2837	cf::write_runtime; # external watchdog should not bark
2380	cf::emergency_save;	2838	cf::emergency_save;
		2839	cf::write_runtime; # external watchdog should not bark
2381		2840
2382	eval {	2841	warn "syncing database to disk";
		2842	BDB::db_env_txn_checkpoint $DB_ENV;
		2843
2383	# if anything goes wrong in here, we should simply crash as we already saved	2844	# if anything goes wrong in here, we should simply crash as we already saved
2384		2845
2385	warn "cancelling all WF_AUTOCANCEL watchers";	2846	warn "cancelling all WF_AUTOCANCEL watchers";
2386	for (Event::all_watchers) {	2847	for (Event::all_watchers) {
2387	$_->cancel if $_->data & WF_AUTOCANCEL;	2848	$_->cancel if $_->data & WF_AUTOCANCEL;
2388	}	2849	}
2389
2390	warn "syncing database to disk";
2391	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2392		2850
2393	warn "flushing outstanding aio requests";	2851	warn "flushing outstanding aio requests";
2394	for (;;) {	2852	for (;;) {
2395	BDB::flush;	2853	BDB::flush;
2396	IO::AIO::flush;	2854	IO::AIO::flush;
2397	Coro::cede;	2855	Coro::cede;
2398	last unless IO::AIO::nreqs || BDB::nreqs;	2856	last unless IO::AIO::nreqs || BDB::nreqs;
2399	warn "iterate...";	2857	warn "iterate...";
2400	}	2858	}
2401		2859
		2860	++$RELOAD;
		2861
2402	warn "cancelling all extension coros";	2862	warn "cancelling all extension coros";
2403	$_->cancel for values %EXT_CORO;	2863	$_->cancel for values %EXT_CORO;
2404	%EXT_CORO = ();	2864	%EXT_CORO = ();
2405		2865
2406	warn "removing commands";	2866	warn "removing commands";
…		…
2445	Symbol::delete_package "safe::$_"	2905	Symbol::delete_package "safe::$_"
2446	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2906	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2447		2907
2448	warn "unloading cf.pm \"a bit\"";	2908	warn "unloading cf.pm \"a bit\"";
2449	delete $INC{"cf.pm"};	2909	delete $INC{"cf.pm"};
		2910	delete $INC{"cf/pod.pm"};
2450		2911
2451	# don't, removes xs symbols, too,	2912	# don't, removes xs symbols, too,
2452	# and global variables created in xs	2913	# and global variables created in xs
2453	#Symbol::delete_package __PACKAGE__;	2914	#Symbol::delete_package __PACKAGE__;
2454		2915
…		…
2463		2924
2464	warn "loading extensions";	2925	warn "loading extensions";
2465	cf::load_extensions;	2926	cf::load_extensions;
2466		2927
2467	warn "reattaching attachments to objects/players";	2928	warn "reattaching attachments to objects/players";
2468	_global_reattach;	2929	_global_reattach; # objects, sockets
2469	warn "reattaching attachments to maps";	2930	warn "reattaching attachments to maps";
2470	reattach $_ for values %MAP;	2931	reattach $_ for values %MAP;
		2932	warn "reattaching attachments to players";
		2933	reattach $_ for values %PLAYER;
2471		2934
2472	warn "loading reloadable resources";	2935	warn "leaving sync_job";
2473	load_resources;
2474		2936
2475	warn "restarting server ticker";	2937	1
2476		2938	} or do {
2477	$TICK_WATCHER->start;
2478	};
2479
2480	if ($@) {
2481	warn $@;	2939	warn $@;
2482	warn "error while reloading, exiting.";	2940	warn "error while reloading, exiting.";
2483	exit 1;	2941	exit 1;
2484	}	2942	};
2485		2943
2486	warn "reloaded";	2944	warn "reloaded";
2487	};	2945	};
2488		2946
2489	our $RELOAD_WATCHER; # used only during reload	2947	our $RELOAD_WATCHER; # used only during reload
2490		2948
		2949	sub reload_perl() {
		2950	# doing reload synchronously and two reloads happen back-to-back,
		2951	# coro crashes during coro_state_free->destroy here.
		2952
		2953	$RELOAD_WATCHER ||= Event->timer (
		2954	reentrant => 0,
		2955	after => 0,
		2956	data => WF_AUTOCANCEL,
		2957	cb => sub {
		2958	do_reload_perl;
		2959	undef $RELOAD_WATCHER;
		2960	},
		2961	);
		2962	}
		2963
2491	register_command "reload" => sub {	2964	register_command "reload" => sub {
2492	my ($who, $arg) = @_;	2965	my ($who, $arg) = @_;
2493		2966
2494	if ($who->flag (FLAG_WIZ)) {	2967	if ($who->flag (FLAG_WIZ)) {
2495	$who->message ("reloading server.");	2968	$who->message ("reloading server.");
2496		2969	async { reload_perl };
2497	# doing reload synchronously and two reloads happen back-to-back,
2498	# coro crashes during coro_state_free->destroy here.
2499
2500	$RELOAD_WATCHER ||= Event->timer (
2501	reentrant => 0,
2502	after => 0,
2503	data => WF_AUTOCANCEL,
2504	cb => sub {
2505	reload;
2506	undef $RELOAD_WATCHER;
2507	},
2508	);
2509	}	2970	}
2510	};	2971	};
2511		2972
2512	unshift @INC, $LIBDIR;	2973	unshift @INC, $LIBDIR;
2513		2974
2514	my $bug_warning = 0;	2975	my $bug_warning = 0;
2515		2976
		2977	our @WAIT_FOR_TICK;
		2978	our @WAIT_FOR_TICK_BEGIN;
		2979
		2980	sub wait_for_tick {
		2981	return unless $TICK_WATCHER->is_active;
		2982	return if $Coro::current == $Coro::main;
		2983
		2984	my $signal = new Coro::Signal;
		2985	push @WAIT_FOR_TICK, $signal;
		2986	$signal->wait;
		2987	}
		2988
		2989	sub wait_for_tick_begin {
		2990	return unless $TICK_WATCHER->is_active;
		2991	return if $Coro::current == $Coro::main;
		2992
		2993	my $signal = new Coro::Signal;
		2994	push @WAIT_FOR_TICK_BEGIN, $signal;
		2995	$signal->wait;
		2996	}
		2997
		2998	my $min = 1e6;#d#
		2999	my $avg = 10;
2516	$TICK_WATCHER = Event->timer (	3000	$TICK_WATCHER = Event->timer (
2517	reentrant => 0,	3001	reentrant => 0,
2518	parked => 1,	3002	parked => 1,
2519	prio => 0,	3003	prio => 0,
2520	at => $NEXT_TICK || $TICK,	3004	at => $NEXT_TICK || $TICK,
…		…
2524	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3008	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2525	unless ++$bug_warning > 10;	3009	unless ++$bug_warning > 10;
2526	return;	3010	return;
2527	}	3011	}
2528		3012
2529	$NOW = Event::time;	3013	$NOW = $tick_start = Event::time;
2530		3014
2531	cf::server_tick; # one server iteration	3015	cf::server_tick; # one server iteration
		3016
		3017	0 && sync_job {#d#
		3018	for(1..10) {
		3019	my $t = Event::time;
		3020	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3021	or die;
		3022
		3023	$map->width (50);
		3024	$map->height (50);
		3025	$map->alloc;
		3026	$map->_load_objects ("/tmp/x.map", 1);
		3027	my $t = Event::time - $t;
		3028
		3029	#next unless $t < 0.0013;#d#
		3030	if ($t < $min) {
		3031	$min = $t;
		3032	}
		3033	$avg = $avg * 0.99 + $t * 0.01;
		3034	}
		3035	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3036	exit 0;
		3037	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3038	};
		3039
2532	$RUNTIME += $TICK;	3040	$RUNTIME += $TICK;
2533	$NEXT_TICK += $TICK;	3041	$NEXT_TICK += $TICK;
2534		3042
2535	$WAIT_FOR_TICK->broadcast;	3043	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2536	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3044	$NEXT_RUNTIME_WRITE = $NOW + 10;
2537		3045	Coro::async_pool {
2538	Event::sweep;	3046	write_runtime
2539	Coro::cede_notself;	3047	or warn "ERROR: unable to write runtime file: $!";
		3048	};
2540		3049	}
		3050
2541	# my $AFTER = Event::time;	3051	# my $AFTER = Event::time;
2542	# warn $AFTER - $NOW;#d#	3052	# warn $AFTER - $NOW;#d#
2543		3053
		3054	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3055	$sig->send;
		3056	}
		3057	while (my $sig = shift @WAIT_FOR_TICK) {
		3058	$sig->send;
		3059	}
		3060
		3061	$NOW = Event::time;
		3062
2544	# if we are delayed by four ticks or more, skip them all	3063	# if we are delayed by four ticks or more, skip them all
2545	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3064	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2546		3065
2547	$TICK_WATCHER->at ($NEXT_TICK);	3066	$TICK_WATCHER->at ($NEXT_TICK);
2548	$TICK_WATCHER->start;	3067	$TICK_WATCHER->start;
		3068
		3069	$LOAD = ($NOW - $tick_start) / $TICK;
		3070	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3071
		3072	_post_tick;
		3073
		3074
2549	},	3075	},
2550	);	3076	);
2551		3077
2552	{	3078	{
2553	BDB::max_poll_time $TICK * 0.1;	3079	BDB::max_poll_time $TICK * 0.1;
…		…
2581		3107
2582	cf::sync_job {	3108	cf::sync_job {
2583	eval {	3109	eval {
2584	BDB::db_env_open	3110	BDB::db_env_open
2585	$DB_ENV,	3111	$DB_ENV,
2586	$BDB_ENV_DIR,	3112	$BDBDIR,
2587	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3113	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2588	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3114	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2589	0666;	3115	0666;
2590		3116
2591	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3117	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2592		3118
2593	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3119	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2594	$DB_ENV->set_lk_detect;	3120	$DB_ENV->set_lk_detect;
2595	};	3121	};
2596		3122
…		…
2604		3130
2605	undef $Coro::AIO::WATCHER;	3131	undef $Coro::AIO::WATCHER;
2606	IO::AIO::max_poll_time $TICK * 0.1;	3132	IO::AIO::max_poll_time $TICK * 0.1;
2607	$AIO_POLL_WATCHER = Event->io (	3133	$AIO_POLL_WATCHER = Event->io (
2608	reentrant => 0,	3134	reentrant => 0,
		3135	data => WF_AUTOCANCEL,
2609	fd => IO::AIO::poll_fileno,	3136	fd => IO::AIO::poll_fileno,
2610	poll => 'r',	3137	poll => 'r',
2611	prio => 6,	3138	prio => 6,
2612	data => WF_AUTOCANCEL,
2613	cb => \&IO::AIO::poll_cb,	3139	cb => \&IO::AIO::poll_cb,
2614	);	3140	);
2615	}	3141	}
2616		3142
2617	$WRITE_RUNTIME_WATCHER = Event->timer (	3143	my $_log_backtrace;
2618	reentrant => 0,	3144
2619	data => WF_AUTOCANCEL,	3145	sub _log_backtrace {
2620	after => 1,	3146	my ($msg, @addr) = @_;
2621	interval => 10,	3147
2622	prio => 6, # keep it lowest so it acts like a watchdog	3148	$msg =~ s/\n//;
2623	cb => Coro::unblock_sub {	3149
2624	write_runtime	3150	# limit the # of concurrent backtraces
2625	or warn "ERROR: unable to write runtime file: $!";	3151	if ($_log_backtrace < 2) {
		3152	++$_log_backtrace;
		3153	async {
		3154	my @bt = fork_call {
		3155	@addr = map { sprintf "%x", $_ } @addr;
		3156	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3157	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3158	or die "addr2line: $!";
		3159
		3160	my @funcs;
		3161	my @res = <$fh>;
		3162	chomp for @res;
		3163	while (@res) {
		3164	my ($func, $line) = splice @res, 0, 2, ();
		3165	push @funcs, "[$func] $line";
		3166	}
		3167
		3168	@funcs
		3169	};
		3170
		3171	LOG llevInfo, "[ABT] $msg\n";
		3172	LOG llevInfo, "[ABT] $_\n" for @bt;
		3173	--$_log_backtrace;
		3174	};
		3175	} else {
		3176	LOG llevInfo, "[ABT] $msg\n";
		3177	LOG llevInfo, "[ABT] [suppressed]\n";
2626	},	3178	}
2627	);	3179	}
		3180
		3181	# load additional modules
		3182	use cf::pod;
2628		3183
2629	END { cf::emergency_save }	3184	END { cf::emergency_save }
2630		3185
2631	1	3186	1
2632		3187

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