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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.281 by root, Sat Jun 16 23:22:59 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;
		32	use Compress::LZF;
27		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
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
28	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
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		41
32	# 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?
33	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
34		44
35	$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
36		48
37	our %COMMAND = ();	49	our %COMMAND = ();
38	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
39		51
40	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	53	our %EXTCMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
44		56
		57	our $RELOAD; # number of reloads so far
45	our @EVENT;	58	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		59
48	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(!)
49	our $TICK_WATCHER;	73	our $TICK_WATCHER;
50	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
51	our $WRITE_RUNTIME_WATCHER;	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	76	our $NEXT_TICK;
53	our $NOW;	77	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		79
56	our $BDB_POLL_WATCHER;	80	our $BDB_POLL_WATCHER;
…		…
62	our $RUNTIME;	86	our $RUNTIME;
63		87
64	our %PLAYER; # all users	88	our %PLAYER; # all users
65	our %MAP; # all maps	89	our %MAP; # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		91
73	# 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 ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		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 $tick_start; # for load detecting purposes
		98
76	binmode STDOUT;	99	binmode STDOUT;
77	binmode STDERR;	100	binmode STDERR;
78		101
79	# read virtual server time, if available	102	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
81	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
82	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
83	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
84	}	107	}
85		108
86	mkdir cf::localdir;	109	mkdir $_
87	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
88	mkdir cf::localdir . "/" . cf::tmpdir;
89	mkdir cf::localdir . "/" . cf::uniquedir;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		111
93	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
94		113
95	sub cf::map::normalise;	114	sub cf::map::normalise;
96		115
…		…
107	=item $cf::RUNTIME	126	=item $cf::RUNTIME
108		127
109	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
110	every server tick.	129	every server tick.
111		130
112	=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
113		134
114	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
115	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.
116		139
117	=item $cf::NOW	140	=item $cf::NOW
118		141
119	The time of the last (current) server tick.	142	The time of the last (current) server tick.
120		143
121	=item $cf::TICK	144	=item $cf::TICK
122		145
123	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.
124		157
125	=item %cf::CFG	158	=item %cf::CFG
126		159
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
128	from wherever your confdir points to.	161	from wherever your confdir points to.
129		162
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		164
132	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
133	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
134	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.
135	window of cpu time available, or simply to synchronise to the server tick.
136		168
137	=back	169	=back
138		170
139	=cut	171	=cut
140		172
141	BEGIN {	173	BEGIN {
142	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	175	my $msg = join "", @_;
144	utf8::encode $msg;
145		176
146	$msg .= "\n"	177	$msg .= "\n"
147	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
148		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
149	LOG llevError, $msg;	183	LOG llevError, $msg;
150	};	184	};
151	}	185	}
152		186
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@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';
158	@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)
159		194
160	# 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
161	# within the Safe compartment.	196	# within the Safe compartment.
162	for my $pkg (qw(	197	for my $pkg (qw(
163	cf::global cf::attachable	198	cf::global cf::attachable
…		…
171	}	206	}
172		207
173	$Event::DIED = sub {	208	$Event::DIED = sub {
174	warn "error in event callback: @_";	209	warn "error in event callback: @_";
175	};	210	};
		211
		212	#############################################################################
176		213
177	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
178		215
179	=over 4	216	=over 4
180		217
…		…
199	$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;
200	$d	237	$d
201	} || "[unable to dump $_[0]: '$@']";	238	} || "[unable to dump $_[0]: '$@']";
202	}	239	}
203		240
204	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
205		242
206	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
207		244
208	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
209		246
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
218		248
219	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
220
221	=cut
222
223	sub to_json($) {
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
225	JSON::Syck::Dump $_[0]
226	}
227		250
228	=item cf::lock_wait $string	251	=item cf::lock_wait $string
229		252
230	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
231		254
…		…
237	returned.	260	returned.
238		261
239	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
240	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
241		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
242	=cut	269	=cut
243		270
244	our %LOCK;	271	our %LOCK;
245		272
246	sub lock_wait($) {	273	sub lock_wait($) {
…		…
265	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
267	}	294	}
268	}	295	}
269		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
270	sub freeze_mainloop {	303	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
272		305
273	my $guard = Coro::guard {	306	my $guard = Coro::guard {
274	$TICK_WATCHER->start;	307	$TICK_WATCHER->start;
275	$WRITE_RUNTIME_WATCHER->start;
276	};	308	};
277	$WRITE_RUNTIME_WATCHER->stop;
278	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
279	$guard	310	$guard
280	}	311	}
281		312
282	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
289		320
290	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
291		322
292	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
293		324
294	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
297		329
298	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
301	fast or be very important.	333	fast or be very important.
…		…
304		336
305	sub sync_job(&) {	337	sub sync_job(&) {
306	my ($job) = @_;	338	my ($job) = @_;
307		339
308	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
309	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
311		345
312	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
313	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
324		358
325	while ($busy) {	359	while ($busy) {
326	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
327	}	361	}
328		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
329	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
330	} else {	371	} else {
331	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
332		373
333	$job->()	374	$job->()
…		…
352	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
353		394
354	$coro	395	$coro
355	}	396	}
356		397
357	sub write_runtime {	398	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		399
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
361	or return;	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.
362		404
363	my $value = $cf::RUNTIME + 90 + 10;	405	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		406
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	407	sub fork_call(&@) {
368	and return;	408	my ($cb, @args) = @_;
369		409
370	# always fsync - this file is important	410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
371	aio_fsync $fh	411	# or die "socketpair: $!";
372	and return;	412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
373		414
		415	if (my $pid = fork) {
374	close $fh	416	close $fh2;
375	or return;
376		417
377	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
378	and return;	419	$res = Coro::Storable::thaw $res;
379		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
380	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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 });
381	}	567	}
382		568
383	=back	569	=back
384		570
385	=cut	571	=cut
…		…
392	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")
393	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
394		580
395	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>
396	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
397	crossfire+).	583	Crossfire TRT).
398		584
399	=over 4	585	=over 4
400		586
401	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
402		588
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
566		752
567	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		757
572	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	759	my $pkg = shift @arg;
574		760
575	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
605	}	791	}
606		792
607	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
608	} else {	794	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	796	}
611		797
612	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
613	}	799	}
614		800
…		…
616	if (ref $_[0]) {	802	if (ref $_[0]) {
617	_object_attach @_;	803	_object_attach @_;
618	} else {	804	} else {
619	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
620	}	806	}
		807	_recalc_want;
621	};	808	};
622		809
623	# all those should be optimised	810	# all those should be optimised
624	sub cf::attachable::detach {	811	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
629	reattach ($obj);	816	reattach ($obj);
630	} else {	817	} else {
631	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
632	}	819	}
		820	_recalc_want;
633	};	821	};
634		822
635	sub cf::attachable::attached {	823	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
637		825
…		…
784	}	972	}
785	} else {	973	} else {
786	aio_unlink $filename;	974	aio_unlink $filename;
787	aio_unlink "$filename.pst";	975	aio_unlink "$filename.pst";
788	}	976	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	977	}
796	}	978	}
797		979
798	sub object_freezer_as_string {	980	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	981	my ($rdata, $objs) = @_;
…		…
805		987
806	sub object_thawer_load {	988	sub object_thawer_load {
807	my ($filename) = @_;	989	my ($filename) = @_;
808		990
809	my ($data, $av);	991	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		992
814	(aio_load $filename, $data) >= 0	993	(aio_load $filename, $data) >= 0
815	or return;	994	or return;
816		995
817	unless (aio_stat "$filename.pst") {	996	unless (aio_stat "$filename.pst") {
…		…
819	or return;	998	or return;
820	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
821	}	1000	}
822		1001
823	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
825	return ($data, $av);	1004	return ($data, $av);
826	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
827		1012
828	#############################################################################	1013	#############################################################################
829	# command handling &c	1014	# command handling &c
830		1015
831	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1030	}
846		1031
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1033
849	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.
850		1035
851	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
852	called.	1037	called.
853		1038
854	=cut	1039	=cut
…		…
889		1074
890	cf::override;	1075	cf::override;
891	},	1076	},
892	);	1077	);
893		1078
894	sub load_extension {
895	my ($path) = @_;
896
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
898	my $base = $1;
899	my $pkg = $1;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}
922	die $@;
923	}
924
925	push @EXTS, $pkg;
926	}
927
928	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
929	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1084	next unless -r $path;
931	eval {	1085
932	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;
933	1	1143	}
934	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
935	}	1149	};
936	}	1150	}
937		1151
938	#############################################################################	1152	#############################################################################
939		1153
		1154	=back
		1155
940	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
941		1157
942	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
943		1159
944	=cut	1160	=cut
…		…
956	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
957		1173
958	=cut	1174	=cut
959		1175
960	sub playerdir($) {	1176	sub playerdir($) {
961	cf::localdir	1177	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1179	}
967		1180
968	sub path($) {	1181	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1183
971	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
972	}	1185	}
973		1186
974	sub find_active($) {	1187	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
989	my $login = $_[0];	1202	my $login = $_[0];
990		1203
991	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
992		1205
993	$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
994	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
995	or return;	1215	or return;
996	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
997	}	1217	}
998	}	1218	}
…		…
1035		1255
1036	=cut	1256	=cut
1037		1257
1038	sub quit_character {	1258	sub quit_character {
1039	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1040		1262
1041	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1042	$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
1043		1265
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1049	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1053	$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
1054	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;
1055	}	1297	}
1056		1298
1057	=item cf::player::list_logins	1299	=item cf::player::list_logins
1058		1300
1059	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
1060	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1061		1303
1062	=cut	1304	=cut
1063		1305
1064	sub list_logins {	1306	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1308	or return [];
1067		1309
1068	my @logins;	1310	my @logins;
1069		1311
1070	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1105	}	1347	}
1106		1348
1107	\@paths	1349	\@paths
1108	}	1350	}
1109		1351
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player->ext_reply ($msgid, %msg)
1111		1353
1112	Sends an ext reply to the player.	1354	Sends an ext reply to the player.
1113		1355
1114	=cut	1356	=cut
1115		1357
1116	sub ext_reply($$$%) {	1358	sub ext_reply($$%) {
1117	my ($self, $id, %msg) = @_;	1359	my ($self, $id, %msg) = @_;
1118		1360
1119	$msg{msgid} = $id;	1361	$msg{msgid} = $id;
1120		1362
1121	$self->send ("ext " . cf::to_json \%msg);	1363	$self->send ("ext " . cf::to_json \%msg);
1122	}	1364	}
1123		1365
1124	package cf;	1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		1373	my ($self, $type, %msg) = @_;
		1374
		1375	$self->ns->ext_event ($type, %msg);
		1376	}
		1377
		1378	=head3 cf::region
		1379
		1380	=over 4
		1381
		1382	=cut
		1383
		1384	package cf::region;
		1385
		1386	=item cf::region::find_by_path $path
		1387
		1388	Tries to decuce the likely region for a map knowing only its path.
		1389
		1390	=cut
		1391
		1392	sub find_by_path($) {
		1393	my ($path) = @_;
		1394
		1395	my ($match, $specificity);
		1396
		1397	for my $region (list) {
		1398	if ($region->match && $path =~ $region->match) {
		1399	($match, $specificity) = ($region, $region->specificity)
		1400	if $region->specificity > $specificity;
		1401	}
		1402	}
		1403
		1404	$match
		1405	}
1125		1406
1126	=back	1407	=back
1127
1128		1408
1129	=head3 cf::map	1409	=head3 cf::map
1130		1410
1131	=over 4	1411	=over 4
1132		1412
…		…
1187	my ($self, $merge) = @_;	1467	my ($self, $merge) = @_;
1188		1468
1189	# we have to keep some variables in memory intact	1469	# we have to keep some variables in memory intact
1190	local $self->{path};	1470	local $self->{path};
1191	local $self->{load_path};	1471	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1472
1195	$self->SUPER::thawer_merge ($merge);	1473	$self->SUPER::thawer_merge ($merge);
1196	}	1474	}
1197		1475
1198	sub normalise {	1476	sub normalise {
…		…
1270		1548
1271	# the original (read-only) location	1549	# the original (read-only) location
1272	sub load_path {	1550	sub load_path {
1273	my ($self) = @_;	1551	my ($self) = @_;
1274		1552
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1553	"$MAPDIR/$self->{path}.map"
1276	}	1554	}
1277		1555
1278	# the temporary/swap location	1556	# the temporary/swap location
1279	sub save_path {	1557	sub save_path {
1280	my ($self) = @_;	1558	my ($self) = @_;
1281		1559
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1561	"$TMPDIR/$path.map"
1284	}	1562	}
1285		1563
1286	# the unique path, undef == no special unique path	1564	# the unique path, undef == no special unique path
1287	sub uniq_path {	1565	sub uniq_path {
1288	my ($self) = @_;	1566	my ($self) = @_;
1289		1567
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1569	"$UNIQUEDIR/$path"
1292	}	1570	}
1293		1571
1294	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1295	# all maps in C++...	1573	# all maps in C++...
1296	sub change_all_map_light {	1574	sub change_all_map_light {
…		…
1298		1576
1299	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1300	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1301	}	1579	}
1302		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
1303	sub unlink_save {	1589	sub unlink_save {
1304	my ($self) = @_;	1590	my ($self) = @_;
1305		1591
1306	utf8::encode (my $save = $self->save_path);	1592	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1594	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1595	}
1315		1596
1316	sub load_header_from($) {	1597	sub load_header_from($) {
1317	my ($self, $path) = @_;	1598	my ($self, $path) = @_;
1318		1599
…		…
1368	$self->load_header_orig	1649	$self->load_header_orig
1369	or return;	1650	or return;
1370	$self->prepare_orig;	1651	$self->prepare_orig;
1371	}	1652	}
1372		1653
		1654	$self->{deny_reset} = 1
		1655	if $self->no_reset;
		1656
		1657	$self->default_region (cf::region::find_by_path $self->{path})
		1658	unless $self->default_region;
		1659
1373	1	1660	1
1374	}	1661	}
1375		1662
1376	sub find;	1663	sub find;
1377	sub find {	1664	sub find {
…		…
1389	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1390		1677
1391	$map->load_header	1678	$map->load_header
1392	or return;	1679	or return;
1393		1680
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	1682	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	1683	#$cf::WAIT_FOR_TICK->wait;
1397	$map->reset;	1684	$map->reset;
1398	undef $guard;	1685	undef $guard;
1399	return find $path;	1686	return find $path;
…		…
1410	my ($self) = @_;	1697	my ($self) = @_;
1411		1698
1412	local $self->{deny_reset} = 1; # loading can take a long time	1699	local $self->{deny_reset} = 1; # loading can take a long time
1413		1700
1414	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1415	my $guard = cf::lock_acquire "map_load:$path";	1704	my $guard = cf::lock_acquire "map_load:$path";
1416		1705
1417	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1418		1707
1419	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1420		1709
1421	$self->alloc;	1710	$self->alloc;
1422		1711
1423	$self->pre_load;	1712	$self->pre_load;
1424
1425	$self->_load_objects ($self->{load_path}, 1)
1426	or return;
1427
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1429	if delete $self->{load_original};
1430
1431	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {
1434	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);
1436	}
1437	}
1438
1439	Coro::cede;
1440
1441	# now do the right thing for maps
1442	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;	1713	Coro::cede;
1449	$self->set_darkness_map;	1714
		1715	$self->_load_objects ($self->{load_path}, 1)
		1716	or return;
		1717
		1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1719	if delete $self->{load_original};
		1720
		1721	if (my $uniq = $self->uniq_path) {
		1722	utf8::encode $uniq;
		1723	if (aio_open $uniq, O_RDONLY, 0) {
		1724	$self->clear_unique_items;
		1725	$self->_load_objects ($uniq, 0);
		1726	}
		1727	}
		1728
		1729	Coro::cede;
		1730	# now do the right thing for maps
		1731	$self->link_multipart_objects;
1450	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	1733	unless $self->difficulty;
1452	Coro::cede;	1734	Coro::cede;
		1735
		1736	unless ($self->{deny_activate}) {
		1737	$self->decay_objects;
		1738	$self->fix_auto_apply;
		1739	$self->update_buttons;
		1740	Coro::cede;
		1741	$self->set_darkness_map;
		1742	Coro::cede;
1453	$self->activate;	1743	$self->activate;
		1744	}
		1745
		1746	$self->in_memory (cf::MAP_IN_MEMORY);
1454	}	1747	}
1455		1748
1456	$self->post_load;	1749	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	1750	}
1460		1751
1461	sub customise_for {	1752	sub customise_for {
1462	my ($self, $ob) = @_;	1753	my ($self, $ob) = @_;
1463		1754
1464	return find "~" . $ob->name . "/" . $self->{path}	1755	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
1466		1760
1467	$self	1761	$self
1468	}	1762	}
1469		1763
1470	# find and load all maps in the 3x3 area around a map	1764	# find and load all maps in the 3x3 area around a map
…		…
1581		1875
1582	sub reset_at {	1876	sub reset_at {
1583	my ($self) = @_;	1877	my ($self) = @_;
1584		1878
1585	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1588		1881
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		1884
…		…
1602	my ($self) = @_;	1895	my ($self) = @_;
1603		1896
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		1898
1606	return if $self->players;	1899	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		1900
1609	warn "resetting map ", $self->path;#d#	1901	warn "resetting map ", $self->path;
		1902
		1903	$self->in_memory (cf::MAP_SWAPPED);
		1904
		1905	# need to save uniques path
		1906	unless ($self->{deny_save}) {
		1907	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1908
		1909	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1910	if $uniq;
		1911	}
1610		1912
1611	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
1612		1914
1613	$self->in_memory (cf::MAP_SWAPPED);
1614	$self->clear;	1915	$self->clear;
1615		1916
1616	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1617		1918
1618	$self->unlink_save;	1919	$self->unlink_save;
…		…
1637	$cf::MAP{$self->path} = $self;	1938	$cf::MAP{$self->path} = $self;
1638		1939
1639	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1640	}	1941	}
1641		1942
		1943	=item $maps = cf::map::tmp_maps
		1944
		1945	Returns an arrayref with all map paths of currently instantiated and saved
		1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
		1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
		1960
		1961	=item $maps = cf::map::random_maps
		1962
		1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
		1965
		1966	=cut
		1967
		1968	sub random_maps() {
		1969	[
		1970	map {
		1971	utf8::decode $_;
		1972	/\.map$/
		1973	? normalise "?random/$_"
		1974	: ()
		1975	} @{ aio_readdir $RANDOMDIR or [] }
		1976	]
		1977	}
		1978
1642	=item cf::map::unique_maps	1979	=item cf::map::unique_maps
1643		1980
1644	Returns an arrayref of paths of all shared maps that have	1981	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	1982	instantiated unique items. May block.
1646		1983
1647	=cut	1984	=cut
1648		1985
1649	sub unique_maps() {	1986	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1987	[
1651	or return;	1988	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	1989	utf8::decode $_;
1657	next if /\.pst$/;	1990	/\.map$/
1658	next unless /^$PATH_SEP/o;	1991	? normalise $_
1659		1992	: ()
1660	push @paths, cf::map::normalise $_;	1993	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	1994	]
1662
1663	\@paths
1664	}	1995	}
1665		1996
1666	package cf;	1997	package cf;
1667		1998
1668	=back	1999	=back
…		…
1774	$self->deactivate_recursive;	2105	$self->deactivate_recursive;
1775		2106
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2107	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2108
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2109	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2110	if $self->map && $self->map->{path} ne "{link}";
1780		2111
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2112	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2113	}
1783		2114
1784	sub cf::object::player::leave_link {	2115	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2116	my ($self, $map, $x, $y) = @_;
		2117
		2118	return unless $self->contr->active;
1786		2119
1787	my $link_pos = delete $self->{_link_pos};	2120	my $link_pos = delete $self->{_link_pos};
1788		2121
1789	unless ($map) {	2122	unless ($map) {
1790	# restore original map position	2123	# restore original map position
…		…
1808	$map->load;	2141	$map->load;
1809	$map->load_diag;	2142	$map->load_diag;
1810		2143
1811	return unless $self->contr->active;	2144	return unless $self->contr->active;
1812	$self->activate_recursive;	2145	$self->activate_recursive;
		2146
		2147	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2148	$self->enter_map ($map, $x, $y);
1814	}	2149	}
1815		2150
1816	cf::player->attach (
1817	on_logout => sub {
1818	my ($pl) = @_;
1819
1820	# abort map switching before logout
1821	if ($pl->ob->{_link_pos}) {
1822	cf::sync_job {
1823	$pl->ob->leave_link
1824	};
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829
1830	# try to abort aborted map switching on player login :)
1831	# should happen only on crashes
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847
1848	=item $player_object->goto ($path, $x, $y)	2151	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1849		2152
		2153	Moves the player to the given map-path and coordinates by first freezing
		2154	her, loading and preparing them map, calling the provided $check callback
		2155	that has to return the map if sucecssful, and then unfreezes the player on
		2156	the new (success) or old (failed) map position.
		2157
1850	=cut	2158	=cut
		2159
		2160	our $GOTOGEN;
1851		2161
1852	sub cf::object::player::goto {	2162	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2163	my ($self, $path, $x, $y, $check) = @_;
		2164
		2165	# do generation counting so two concurrent goto's will be executed in-order
		2166	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2167
1855	$self->enter_link;	2168	$self->enter_link;
1856		2169
1857	(async {	2170	(async {
1858	my $map = eval {	2171	my $map = eval {
1859	my $map = cf::map::find $path;	2172	my $map = cf::map::find $path;
		2173
		2174	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2175	$map = $map->customise_for ($self);
		2176	$map = $check->($map) if $check && $map;
		2177	} else {
		2178	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2179	}
		2180
1861	$map	2181	$map
		2182	};
		2183
		2184	if ($@) {
		2185	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2186	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2187	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2188
		2189	if ($gen == $self->{_goto_generation}) {
		2190	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2191	$self->leave_link ($map, $x, $y);
		2192	}
1866	})->prio (1);	2193	})->prio (1);
1867	}	2194	}
1868		2195
1869	=item $player_object->enter_exit ($exit_object)	2196	=item $player_object->enter_exit ($exit_object)
1870		2197
…		…
1909		2236
1910	$rmp->{random_seed} ||= $exit->random_seed;	2237	$rmp->{random_seed} ||= $exit->random_seed;
1911		2238
1912	my $data = cf::to_json $rmp;	2239	my $data = cf::to_json $rmp;
1913	my $md5 = Digest::MD5::md5_hex $data;	2240	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2241	my $meta = "$RANDOMDIR/$md5.meta";
1915		2242
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2243	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2244	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2245	undef $fh;
1919	aio_rename "$meta~", $meta;	2246	aio_rename "$meta~", $meta;
…		…
1928		2255
1929	return unless $self->type == cf::PLAYER;	2256	return unless $self->type == cf::PLAYER;
1930		2257
1931	if ($exit->slaying eq "/!") {	2258	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job	2259	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2260	# the problem is that $exit might not survive long enough
		2261	# so it needs to be done right now, right here
1933	cf::sync_job { prepare_random_map $exit };	2262	cf::sync_job { prepare_random_map $exit };
1934	}	2263	}
1935		2264
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2265	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;	2266	my $hp = $exit->stats->hp;
…		…
1945	$self->goto ($slaying, $hp, $sp);	2274	$self->goto ($slaying, $hp, $sp);
1946		2275
1947	1;	2276	1;
1948	}) {	2277	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2278	$self->message ("Something went wrong deep within the crossfire server. "
1950	. "I'll try to bring you back to the map you were before. "	2279	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2280	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2281	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2282
1954	warn "ERROR in enter_exit: $@";	2283	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2284	$self->leave_link;
1956	}	2285	}
1957	})->prio (1);	2286	})->prio (1);
…		…
1970		2299
1971	sub cf::client::send_drawinfo {	2300	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2301	my ($self, $text, $flags) = @_;
1973		2302
1974	utf8::encode $text;	2303	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2304	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2305	}
1977		2306
		2307	=item $client->ext_event ($type, %msg)
		2308
		2309	Sends an exti event to the client.
		2310
		2311	=cut
		2312
		2313	sub cf::client::ext_event($$%) {
		2314	my ($self, $type, %msg) = @_;
		2315
		2316	$msg{msgtype} = "event_$type";
		2317	$self->send_packet ("ext " . cf::to_json \%msg);
		2318	}
1978		2319
1979	=item $success = $client->query ($flags, "text", \&cb)	2320	=item $success = $client->query ($flags, "text", \&cb)
1980		2321
1981	Queues a query to the client, calling the given callback with	2322	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2323	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2079		2420
2080	# here we export the classes and methods available to script code	2421	# here we export the classes and methods available to script code
2081		2422
2082	=pod	2423	=pod
2083		2424
2084	The following fucntions and emthods are available within a safe environment:	2425	The following functions and methods are available within a safe environment:
2085		2426
2086	cf::object contr pay_amount pay_player map	2427	cf::object contr pay_amount pay_player map
2087	cf::object::player player	2428	cf::object::player player
2088	cf::player peaceful	2429	cf::player peaceful
2089	cf::map trigger	2430	cf::map trigger
…		…
2170	=back	2511	=back
2171		2512
2172	=cut	2513	=cut
2173		2514
2174	#############################################################################	2515	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	2516	# the server's init and main functions
2284		2517
2285	sub load_resources {	2518	sub load_facedata($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2519	my ($path) = @_;
		2520
		2521	warn "loading facedata from $path\n";
		2522
		2523	my $facedata;
		2524	0 < aio_load $path, $facedata
		2525	or die "$path: $!";
		2526
		2527	$facedata = Coro::Storable::thaw $facedata;
		2528
		2529	$facedata->{version} == 2
		2530	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2531
		2532	{
		2533	my $faces = $facedata->{faceinfo};
		2534
		2535	while (my ($face, $info) = each %$faces) {
		2536	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2537	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2538	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2539	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2540	Coro::cede;
		2541	}
		2542
		2543	while (my ($face, $info) = each %$faces) {
		2544	next unless $info->{smooth};
		2545	my $idx = cf::face::find $face
		2546	or next;
		2547	if (my $smooth = cf::face::find $info->{smooth}) {
		2548	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2549	} else {
		2550	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2551	}
		2552	Coro::cede;
		2553	}
		2554	}
		2555
		2556	{
		2557	my $anims = $facedata->{animinfo};
		2558
		2559	while (my ($anim, $info) = each %$anims) {
		2560	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2561	Coro::cede;
		2562	}
		2563
		2564	cf::anim::invalidate_all; # d'oh
		2565	}
		2566
		2567	1
		2568	}
		2569
		2570	sub reload_regions {
		2571	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	2572	or die "unable to load regions file\n";
		2573	}
		2574
		2575	sub reload_facedata {
		2576	load_facedata "$DATADIR/facedata"
		2577	or die "unable to load facedata\n";
		2578	}
		2579
		2580	sub reload_archetypes {
		2581	load_resource_file "$DATADIR/archetypes"
		2582	or die "unable to load archetypes\n";
		2583	}
		2584
		2585	sub reload_treasures {
		2586	load_resource_file "$DATADIR/treasures"
		2587	or die "unable to load treasurelists\n";
		2588	}
		2589
		2590	sub reload_resources {
		2591	warn "reloading resource files...\n";
		2592
		2593	reload_regions;
		2594	reload_facedata;
		2595	#reload_archetypes;#d#
		2596	reload_archetypes;
		2597	reload_treasures;
		2598
		2599	warn "finished reloading resource files\n";
		2600	}
		2601
		2602	sub init {
		2603	reload_resources;
2288	}	2604	}
2289		2605
2290	sub cfg_load {	2606	sub cfg_load {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	2607	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	2608	or return;
2293		2609
2294	local $/;	2610	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	2611	*CFG = YAML::Syck::Load <$fh>;
2296		2612
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2620	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	2621	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	2622	};
2307	warn $@ if $@;	2623	warn $@ if $@;
2308	}	2624	}
2309	}
2310
2311	sub init {
2312	load_resources;
2313	}	2625	}
2314		2626
2315	sub main {	2627	sub main {
2316	# we must not ever block the main coroutine	2628	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	2629	local $Coro::idle = sub {
…		…
2320	Event::one_event;	2632	Event::one_event;
2321	})->prio (Coro::PRIO_MAX);	2633	})->prio (Coro::PRIO_MAX);
2322	};	2634	};
2323		2635
2324	cfg_load;	2636	cfg_load;
2325	db_load;	2637	db_init;
2326	load_extensions;	2638	load_extensions;
2327		2639
2328	$TICK_WATCHER->start;	2640	$TICK_WATCHER->start;
2329	Event::loop;	2641	Event::loop;
2330	}	2642	}
…		…
2345	},	2657	},
2346	);	2658	);
2347	}	2659	}
2348	}	2660	}
2349		2661
		2662	sub write_runtime {
		2663	my $runtime = "$LOCALDIR/runtime";
		2664
		2665	# first touch the runtime file to show we are still running:
		2666	# the fsync below can take a very very long time.
		2667
		2668	IO::AIO::aio_utime $runtime, undef, undef;
		2669
		2670	my $guard = cf::lock_acquire "write_runtime";
		2671
		2672	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2673	or return;
		2674
		2675	my $value = $cf::RUNTIME + 90 + 10;
		2676	# 10 is the runtime save interval, for a monotonic clock
		2677	# 60 allows for the watchdog to kill the server.
		2678
		2679	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2680	and return;
		2681
		2682	# always fsync - this file is important
		2683	aio_fsync $fh
		2684	and return;
		2685
		2686	# touch it again to show we are up-to-date
		2687	aio_utime $fh, undef, undef;
		2688
		2689	close $fh
		2690	or return;
		2691
		2692	aio_rename "$runtime~", $runtime
		2693	and return;
		2694
		2695	warn "runtime file written.\n";
		2696
		2697	1
		2698	}
		2699
2350	sub emergency_save() {	2700	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	2701	my $freeze_guard = cf::freeze_mainloop;
2352		2702
2353	warn "enter emergency perl save\n";	2703	warn "enter emergency perl save\n";
2354		2704
…		…
2369	my $map = $cf::MAP{$path} or next;	2719	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	2720	$map->valid or next;
2371	$map->save;	2721	$map->save;
2372	}	2722	}
2373	warn "end emergency map save\n";	2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
2374	};	2728	};
2375		2729
2376	warn "leave emergency perl save\n";	2730	warn "leave emergency perl save\n";
2377	}	2731	}
2378		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
2379	sub reload() {	2740	sub do_reload_perl() {
2380	# can/must only be called in main	2741	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	2743	warn "can only reload from main coroutine";
2383	return;	2744	return;
2384	}	2745	}
2385		2746
2386	warn "reloading...";	2747	warn "reloading...";
2387		2748
2388	warn "cancelling server ticker";	2749	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
2391	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
2392		2755
2393	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
2394	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
2395
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398		2760
2399	warn "cancelling all WF_AUTOCANCEL watchers";	2761	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}	2764	}
2403		2765
2404	warn "flushing outstanding aio requests";	2766	warn "flushing outstanding aio requests";
2405	for (;;) {	2767	for (;;) {
		2768	BDB::flush;
2406	IO::AIO::flush;	2769	IO::AIO::flush;
2407	Coro::cede;	2770	Coro::cede;
2408	last unless IO::AIO::nreqs;	2771	last unless IO::AIO::nreqs || BDB::nreqs;
2409	warn "iterate...";	2772	warn "iterate...";
2410	}	2773	}
		2774
		2775	++$RELOAD;
2411		2776
2412	warn "cancelling all extension coros";	2777	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();	2779	%EXT_CORO = ();
2415		2780
…		…
2455	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		2822
2458	warn "unloading cf.pm \"a bit\"";	2823	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
2460		2826
2461	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
2462	# and global variables created in xs	2828	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
2464		2830
…		…
2468	require cf;	2834	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		2836
2471	warn "loading config and database again";	2837	warn "loading config and database again";
2472	cf::cfg_load;	2838	cf::cfg_load;
2473	cf::db_load;
2474		2839
2475	warn "loading extensions";	2840	warn "loading extensions";
2476	cf::load_extensions;	2841	cf::load_extensions;
2477		2842
2478	warn "reattaching attachments to objects/players";	2843	warn "reattaching attachments to objects/players";
2479	_global_reattach;	2844	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	2845	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	2846	reattach $_ for values %MAP;
		2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
2482		2849
2483	warn "loading reloadable resources";	2850	warn "leaving sync_job";
2484	load_resources;
2485		2851
2486	warn "restarting server ticker";	2852	1
2487		2853	} or do {
2488	$TICK_WATCHER->start;
2489	};
2490
2491	if ($@) {
2492	warn $@;	2854	warn $@;
2493	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
2494	exit 1;	2856	exit 1;
2495	}	2857	};
2496		2858
2497	warn "reloaded";	2859	warn "reloaded";
2498	};	2860	};
2499		2861
2500	our $RELOAD_WATCHER; # used only during reload	2862	our $RELOAD_WATCHER; # used only during reload
2501		2863
		2864	sub reload_perl() {
		2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
		2867
		2868	$RELOAD_WATCHER ||= Event->timer (
		2869	reentrant => 0,
		2870	after => 0,
		2871	data => WF_AUTOCANCEL,
		2872	cb => sub {
		2873	do_reload_perl;
		2874	undef $RELOAD_WATCHER;
		2875	},
		2876	);
		2877	}
		2878
2502	register_command "reload" => sub {	2879	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
2504		2881
2505	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	2883	$who->message ("reloading server.");
2507		2884	async { reload_perl };
2508	# doing reload synchronously and two reloads happen back-to-back,
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);
2520	}	2885	}
2521	};	2886	};
2522		2887
2523	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
2524		2889
2525	my $bug_warning = 0;	2890	my $bug_warning = 0;
2526		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
2527	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2528	reentrant => 0,	2916	reentrant => 0,
2529	parked => 1,	2917	parked => 1,
2530	prio => 0,	2918	prio => 0,
2531	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
…		…
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	2924	unless ++$bug_warning > 10;
2537	return;	2925	return;
2538	}	2926	}
2539		2927
2540	$NOW = Event::time;	2928	$NOW = $tick_start = Event::time;
2541		2929
2542	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
		2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2953	};
		2954
2543	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2545		2957
2546	$WAIT_FOR_TICK->broadcast;	2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
2548		2960	Coro::async_pool {
2549	Event::sweep;	2961	write_runtime
2550	Coro::cede_notself;	2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
2551		2964	}
		2965
2552	# my $AFTER = Event::time;	2966	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#	2967	# warn $AFTER - $NOW;#d#
2554		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
		2977
2555	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2557		2980
2558	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
2560	},	2990	},
2561	);	2991	);
2562		2992
2563	{	2993	{
2564	BDB::max_poll_time $TICK * 0.1;	2994	BDB::max_poll_time $TICK * 0.1;
…		…
2589		3019
2590	unless ($DB_ENV) {	3020	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3021	$DB_ENV = BDB::db_env_create;
2592		3022
2593	cf::sync_job {	3023	cf::sync_job {
		3024	eval {
2594	BDB::db_env_open	3025	BDB::db_env_open
2595	$DB_ENV,	3026	$DB_ENV,
2596	$BDB_ENV_DIR,	3027	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3030	0666;
2600		3031
2601	cf::cleanup "$!" if $!;	3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3033
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2604	$DB_ENV->set_lk_detect;	3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3039	};
2606	}	3040	}
2607	}	3041	}
2608		3042
2609	{	3043	{
…		…
2611		3045
2612	undef $Coro::AIO::WATCHER;	3046	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3047	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3048	$AIO_POLL_WATCHER = Event->io (
2615	reentrant => 0,	3049	reentrant => 0,
		3050	data => WF_AUTOCANCEL,
2616	fd => IO::AIO::poll_fileno,	3051	fd => IO::AIO::poll_fileno,
2617	poll => 'r',	3052	poll => 'r',
2618	prio => 6,	3053	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,	3054	cb => \&IO::AIO::poll_cb,
2621	);	3055	);
2622	}	3056	}
2623		3057
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3058	my $_log_backtrace;
2625	reentrant => 0,	3059
2626	data => WF_AUTOCANCEL,	3060	sub _log_backtrace {
2627	after => 1,	3061	my ($msg, @addr) = @_;
2628	interval => 10,	3062
2629	prio => 6, # keep it lowest so it acts like a watchdog	3063	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3064
2631	write_runtime	3065	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3093	}
2634	);	3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
2635		3098
2636	END { cf::emergency_save }	3099	END { cf::emergency_save }
2637		3100
2638	1	3101	1
2639		3102

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