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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.223 by root, Sun Mar 11 02:12:44 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 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
39		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		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 = ();
		54	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
47		57
48	our $RELOAD; # number of reloads so far	58	our $RELOAD; # number of reloads so far
49	our @EVENT;	59	our @EVENT;
50	our $LIBDIR = datadir . "/ext";
51		60
52	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
53	our $TICK_WATCHER;	74	our $TICK_WATCHER;
54	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
56	our $NEXT_TICK;	77	our $NEXT_TICK;
57	our $NOW;	78	our $NOW;
…		…
66	our $RUNTIME;	87	our $RUNTIME;
67		88
68	our %PLAYER; # all users	89	our %PLAYER; # all users
69	our %MAP; # all maps	90	our %MAP; # all maps
70	our $LINK_MAP; # the special {link} map, which is always available	91	our $LINK_MAP; # the special {link} map, which is always available
71	our $RANDOM_MAPS = cf::localdir . "/random";
72	our $BDB_ENV_DIR = cf::localdir . "/db";
73
74	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
75	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
76		92
77	# used to convert map paths into valid unix filenames by replacing / by ∕	93	# used to convert map paths into valid unix filenames by replacing / by ∕
78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
79		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
		99
80	binmode STDOUT;	100	binmode STDOUT;
81	binmode STDERR;	101	binmode STDERR;
82		102
83	# read virtual server time, if available	103	# read virtual server time, if available
84	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
85	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
86	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
87	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
88	}	108	}
89		109
90	mkdir cf::localdir;	110	mkdir $_
91	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
92	mkdir cf::localdir . "/" . cf::tmpdir;
93	mkdir cf::localdir . "/" . cf::uniquedir;
94	mkdir $RANDOM_MAPS;
95	mkdir $BDB_ENV_DIR;
96		112
97	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
98		114
99	sub cf::map::normalise;	115	sub cf::map::normalise;
100		116
…		…
111	=item $cf::RUNTIME	127	=item $cf::RUNTIME
112		128
113	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
114	every server tick.	130	every server tick.
115		131
116	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
117		135
118	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
119	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
120		140
121	=item $cf::NOW	141	=item $cf::NOW
122		142
123	The time of the last (current) server tick.	143	The time of the last (current) server tick.
124		144
125	=item $cf::TICK	145	=item $cf::TICK
126		146
127	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
128		158
129	=item %cf::CFG	159	=item %cf::CFG
130		160
131	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
132	from wherever your confdir points to.	162	from wherever your confdir points to.
133		163
134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	164	=item cf::wait_for_tick, cf::wait_for_tick_begin
135		165
136	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
137	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	167	returns directly I<after> the tick processing (and consequently, can only wake one process
138	processing has been done. Call C<< ->wait >> on them to maximise the	168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
139	window of cpu time available, or simply to synchronise to the server tick.
140		169
141	=back	170	=back
142		171
143	=cut	172	=cut
144		173
145	BEGIN {	174	BEGIN {
146	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
147	my $msg = join "", @_;	176	my $msg = join "", @_;
148	utf8::encode $msg;
149		177
150	$msg .= "\n"	178	$msg .= "\n"
151	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
152		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
153	LOG llevError, $msg;	184	LOG llevError, $msg;
154	};	185	};
155	}	186	}
156		187
157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
159	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
160	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
161	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
162	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
163		195
164	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
165	# within the Safe compartment.	197	# within the Safe compartment.
166	for my $pkg (qw(	198	for my $pkg (qw(
167	cf::global cf::attachable	199	cf::global cf::attachable
…		…
175	}	207	}
176		208
177	$Event::DIED = sub {	209	$Event::DIED = sub {
178	warn "error in event callback: @_";	210	warn "error in event callback: @_";
179	};	211	};
		212
		213	#############################################################################
180		214
181	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
182		216
183	=over 4	217	=over 4
184		218
…		…
203	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
204	$d	238	$d
205	} || "[unable to dump $_[0]: '$@']";	239	} || "[unable to dump $_[0]: '$@']";
206	}	240	}
207		241
208	use JSON::Syck (); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
209		243
210	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
211		245
212	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
213		247
214	=cut
215
216	sub from_json($) {
217	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
218	JSON::Syck::Load $_[0]
219	}
220
221	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
222		249
223	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
224		251
225	=cut	252	=cut
226		253
227	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
228	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
229	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
230	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
231		258
232	=item cf::lock_wait $string	259	=item cf::lock_wait $string
233		260
234	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
235		262
…		…
241	returned.	268	returned.
242		269
243	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
244	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
245		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
246	=cut	277	=cut
247		278
248	our %LOCK;	279	our %LOCK;
249		280
250	sub lock_wait($) {	281	sub lock_wait($) {
…		…
267		298
268	Coro::guard {	299	Coro::guard {
269	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
270	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
271	}	302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
272	}	309	}
273		310
274	sub freeze_mainloop {	311	sub freeze_mainloop {
275	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
276		313
…		…
291		328
292	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
293		330
294	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
295		332
296	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
297	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
298	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
299		337
300	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
301	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
302	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
303	fast or be very important.	341	fast or be very important.
…		…
306		344
307	sub sync_job(&) {	345	sub sync_job(&) {
308	my ($job) = @_;	346	my ($job) = @_;
309		347
310	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
311	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
312	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
313		353
314	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
315	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
326		366
327	while ($busy) {	367	while ($busy) {
328	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
329	}	369	}
330		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
331	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
332	} else {	379	} else {
333	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
334		381
335	$job->()	382	$job->()
…		…
354	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
355		402
356	$coro	403	$coro
357	}	404	}
358		405
359	sub write_runtime {	406	=item fork_call { }, $args
360	my $guard = cf::lock_acquire "write_runtime";
361		407
362	my $runtime = cf::localdir . "/runtime";	408	Executes the given code block with the given arguments in a seperate
		409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
363		412
364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	413	=cut
365	or return;
366		414
367	my $value = $cf::RUNTIME + 90 + 10;	415	sub fork_call(&@) {
368	# 10 is the runtime save interval, for a monotonic clock	416	my ($cb, @args) = @_;
369	# 60 allows for the watchdog to kill the server.
370		417
371	(aio_write $fh, 0, (length $value), $value, 0) <= 0	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
372	and return;	419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
373		422
374	# always fsync - this file is important	423	if (my $pid = fork) {
375	aio_fsync $fh
376	and return;
377
378	close $fh	424	close $fh2;
379	or return;
380		425
381	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
382	and return;	427	$res = Coro::Storable::thaw $res;
383		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
384	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
		564	}
		565
		566	=item cf::datalog type => key => value, ...
		567
		568	Log a datalog packet of the given type with the given key-value pairs.
		569
		570	=cut
		571
		572	sub datalog($@) {
		573	my ($type, %kv) = @_;
		574	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
385	}	575	}
386		576
387	=back	577	=back
388		578
389	=cut	579	=cut
…		…
396	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
398		588
399	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
400	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	591	Crossfire TRT).
402		592
403	=over 4	593	=over 4
404		594
405	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
406		596
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
570		760
571	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		765
576	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	767	my $pkg = shift @arg;
578		768
579	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
609	}	799	}
610		800
611	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
612	} else {	802	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	804	}
615		805
616	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
617	}	807	}
618		808
…		…
620	if (ref $_[0]) {	810	if (ref $_[0]) {
621	_object_attach @_;	811	_object_attach @_;
622	} else {	812	} else {
623	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
624	}	814	}
		815	_recalc_want;
625	};	816	};
626		817
627	# all those should be optimised	818	# all those should be optimised
628	sub cf::attachable::detach {	819	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
633	reattach ($obj);	824	reattach ($obj);
634	} else {	825	} else {
635	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
636	}	827	}
		828	_recalc_want;
637	};	829	};
638		830
639	sub cf::attachable::attached {	831	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
641		833
…		…
814	or return;	1006	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1008	}
817		1009
818	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1012	return ($data, $av);
821	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
822		1020
823	#############################################################################	1021	#############################################################################
824	# command handling &c	1022	# command handling &c
825		1023
826	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1038	}
841		1039
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1041
844	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
845		1047
846	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
847	called.	1049	called.
848		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
849	=cut	1062	=cut
850		1063
851	sub register_extcmd {	1064	sub register_extcmd {
852	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
853		1066
854	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
855	}	1074	}
856		1075
857	cf::player->attach (	1076	cf::player->attach (
858	on_command => sub {	1077	on_command => sub {
859	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
884		1103
885	cf::override;	1104	cf::override;
886	},	1105	},
887	);	1106	);
888		1107
889	sub load_extension {
890	my ($path) = @_;
891
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
893	my $base = $1;
894	my $pkg = $1;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}
917	die $@;
918	}
919
920	push @EXTS, $pkg;
921	}
922
923	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
924	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1113	next unless -r $path;
926	eval {	1114
927	load_extension $ext;	1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
928	1	1172	}
929	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
930	}	1178	};
931	}	1179	}
932		1180
933	#############################################################################	1181	#############################################################################
934		1182
		1183	=back
		1184
935	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
936		1186
937	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
938		1188
939	=cut	1189	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
952		1202
953	=cut	1203	=cut
954		1204
955	sub playerdir($) {	1205	sub playerdir($) {
956	cf::localdir	1206	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1208	}
962		1209
963	sub path($) {	1210	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965		1212
966	(playerdir $login) . "/$login.pl"	1213	(playerdir $login) . "/playerdata"
967	}	1214	}
968		1215
969	sub find_active($) {	1216	sub find_active($) {
970	$cf::PLAYER{$_[0]}	1217	$cf::PLAYER{$_[0]}
971	and $cf::PLAYER{$_[0]}->active	1218	and $cf::PLAYER{$_[0]}->active
…		…
984	my $login = $_[0];	1231	my $login = $_[0];
985		1232
986	my $guard = cf::lock_acquire "user_find:$login";	1233	my $guard = cf::lock_acquire "user_find:$login";
987		1234
988	$cf::PLAYER{$_[0]} || do {	1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
989	my $pl = load_pl path $login	1243	my $pl = load_pl path $login
990	or return;	1244	or return;
991	$cf::PLAYER{$login} = $pl	1245	$cf::PLAYER{$login} = $pl
992	}	1246	}
993	}	1247	}
…		…
1077	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1078		1332
1079	=cut	1333	=cut
1080		1334
1081	sub list_logins {	1335	sub list_logins {
1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1083	or return [];	1337	or return [];
1084		1338
1085	my @logins;	1339	my @logins;
1086		1340
1087	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1122	}	1376	}
1123		1377
1124	\@paths	1378	\@paths
1125	}	1379	}
1126		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
1127	=item $player->ext_reply ($msgid, $msgtype, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1128		1415
1129	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1130		1417
1131	=cut	1418	=cut
1132		1419
1133	sub ext_reply($$$%) {	1420	sub ext_reply($$%) {
1134	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1135		1422
1136	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1137
1138	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1139	}	1425	}
1140		1426
1141	package cf;	1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
		1454	my ($path) = @_;
		1455
		1456	my ($match, $specificity);
		1457
		1458	for my $region (list) {
		1459	if ($region->match && $path =~ $region->match) {
		1460	($match, $specificity) = ($region, $region->specificity)
		1461	if $region->specificity > $specificity;
		1462	}
		1463	}
		1464
		1465	$match
		1466	}
1142		1467
1143	=back	1468	=back
1144
1145		1469
1146	=head3 cf::map	1470	=head3 cf::map
1147		1471
1148	=over 4	1472	=over 4
1149		1473
…		…
1204	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1205		1529
1206	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1207	local $self->{path};	1531	local $self->{path};
1208	local $self->{load_path};	1532	local $self->{load_path};
1209	local $self->{deny_save};
1210	local $self->{deny_reset};
1211		1533
1212	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1213	}	1535	}
1214		1536
1215	sub normalise {	1537	sub normalise {
…		…
1287		1609
1288	# the original (read-only) location	1610	# the original (read-only) location
1289	sub load_path {	1611	sub load_path {
1290	my ($self) = @_;	1612	my ($self) = @_;
1291		1613
1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1293	}	1615	}
1294		1616
1295	# the temporary/swap location	1617	# the temporary/swap location
1296	sub save_path {	1618	sub save_path {
1297	my ($self) = @_;	1619	my ($self) = @_;
1298		1620
1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1301	}	1623	}
1302		1624
1303	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1304	sub uniq_path {	1626	sub uniq_path {
1305	my ($self) = @_;	1627	my ($self) = @_;
1306		1628
1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1309	}	1631	}
1310		1632
1311	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1312	# all maps in C++...	1634	# all maps in C++...
1313	sub change_all_map_light {	1635	sub change_all_map_light {
1314	my ($change) = @_;	1636	my ($change) = @_;
1315		1637
1316	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1317	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
		1640	}
		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
1318	}	1648	}
1319		1649
1320	sub unlink_save {	1650	sub unlink_save {
1321	my ($self) = @_;	1651	my ($self) = @_;
1322		1652
…		…
1380	$self->load_header_orig	1710	$self->load_header_orig
1381	or return;	1711	or return;
1382	$self->prepare_orig;	1712	$self->prepare_orig;
1383	}	1713	}
1384		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
		1718	$self->default_region (cf::region::find_by_path $self->{path})
		1719	unless $self->default_region;
		1720
1385	1	1721	1
1386	}	1722	}
1387		1723
1388	sub find;	1724	sub find;
1389	sub find {	1725	sub find {
…		…
1401	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1402		1738
1403	$map->load_header	1739	$map->load_header
1404	or return;	1740	or return;
1405		1741
1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1407	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1408	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1409	$map->reset;	1745	$map->reset;
1410	undef $guard;	1746	undef $guard;
1411	return find $path;	1747	return find $path;
…		…
1422	my ($self) = @_;	1758	my ($self) = @_;
1423		1759
1424	local $self->{deny_reset} = 1; # loading can take a long time	1760	local $self->{deny_reset} = 1; # loading can take a long time
1425		1761
1426	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1427	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1428		1766
1429	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1430		1768
1431	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1432		1770
1433	$self->alloc;	1771	$self->alloc;
1434		1772
1435	$self->pre_load;	1773	$self->pre_load;
1436
1437	$self->_load_objects ($self->{load_path}, 1)
1438	or return;
1439
1440	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1441	if delete $self->{load_original};
1442
1443	if (my $uniq = $self->uniq_path) {
1444	utf8::encode $uniq;
1445	if (aio_open $uniq, O_RDONLY, 0) {
1446	$self->clear_unique_items;
1447	$self->_load_objects ($uniq, 0);
1448	}
1449	}
1450
1451	Coro::cede;
1452
1453	# now do the right thing for maps
1454	$self->link_multipart_objects;
1455
1456	unless ($self->{deny_activate}) {
1457	$self->decay_objects;
1458	$self->fix_auto_apply;
1459	$self->update_buttons;
1460	Coro::cede;	1774	Coro::cede;
1461	$self->set_darkness_map;	1775
		1776	$self->_load_objects ($self->{load_path}, 1)
		1777	or return;
		1778
		1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1780	if delete $self->{load_original};
		1781
		1782	if (my $uniq = $self->uniq_path) {
		1783	utf8::encode $uniq;
		1784	if (aio_open $uniq, O_RDONLY, 0) {
		1785	$self->clear_unique_items;
		1786	$self->_load_objects ($uniq, 0);
		1787	}
		1788	}
		1789
		1790	Coro::cede;
		1791	# now do the right thing for maps
		1792	$self->link_multipart_objects;
1462	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1463	unless $self->difficulty;	1794	unless $self->difficulty;
1464	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1465	$self->activate;	1804	$self->activate;
		1805	}
		1806
		1807	$self->in_memory (cf::MAP_IN_MEMORY);
1466	}	1808	}
1467		1809
1468	$self->post_load;	1810	$self->post_load;
1469
1470	$self->in_memory (cf::MAP_IN_MEMORY);
1471	}	1811	}
1472		1812
1473	sub customise_for {	1813	sub customise_for {
1474	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1475		1815
1476	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1477	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1478		1821
1479	$self	1822	$self
1480	}	1823	}
1481		1824
1482	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1593		1936
1594	sub reset_at {	1937	sub reset_at {
1595	my ($self) = @_;	1938	my ($self) = @_;
1596		1939
1597	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1598	return 1e99 if $self->isa ("ext::map_per_player");#d#
1599	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1600		1942
1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1603		1945
…		…
1614	my ($self) = @_;	1956	my ($self) = @_;
1615		1957
1616	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1617		1959
1618	return if $self->players;	1960	return if $self->players;
1619	return if $self->isa ("ext::map_per_player");#d#
1620		1961
1621	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
1622		1963
1623	$self->in_memory (cf::MAP_SWAPPED);	1964	$self->in_memory (cf::MAP_SWAPPED);
1624		1965
1625	# need to save uniques path	1966	# need to save uniques path
1626	unless ($self->{deny_save}) {	1967	unless ($self->{deny_save}) {
…		…
1658	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1659		2000
1660	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1661	}	2002	}
1662		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
		2012	[
		2013	map {
		2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
		2020	}
		2021
		2022	=item $maps = cf::map::random_maps
		2023
		2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
		2026
		2027	=cut
		2028
		2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
1663	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1664		2041
1665	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1666	instantiated unique items. May block.	2043	instantiated unique items. May block.
1667		2044
1668	=cut	2045	=cut
1669		2046
1670	sub unique_maps() {	2047	sub unique_maps() {
1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1672	or return;	2049	map {
1673
1674	my @paths;
1675
1676	for (@$files) {
1677	utf8::decode $_;	2050	utf8::decode $_;
1678	next if /\.pst$/;	2051	/\.map$/
1679	next unless /^$PATH_SEP/o;	2052	? normalise $_
1680		2053	: ()
1681	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1682	}	2055	]
1683
1684	\@paths
1685	}	2056	}
1686		2057
1687	package cf;	2058	package cf;
1688		2059
1689	=back	2060	=back
…		…
1735		2106
1736	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1737		2108
1738	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1739	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1740	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1741	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1742	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1743	}	2128	}
1744	}	2129	}
1745		2130
1746	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1747		2132
…		…
1795	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1796		2181
1797	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1798		2183
1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1800	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1801		2186
1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1803	}	2188	}
1804		2189
1805	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1806	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1807		2194
1808	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1809		2196
1810	unless ($map) {	2197	unless ($map) {
1811	# restore original map position	2198	# restore original map position
…		…
1834		2221
1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1836	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1837	}	2224	}
1838		2225
1839	cf::player->attach (
1840	on_logout => sub {
1841	my ($pl) = @_;
1842
1843	# abort map switching before logout
1844	if ($pl->ob->{_link_pos}) {
1845	cf::sync_job {
1846	$pl->ob->leave_link
1847	};
1848	}
1849	},
1850	on_login => sub {
1851	my ($pl) = @_;
1852
1853	# try to abort aborted map switching on player login :)
1854	# should happen only on crashes
1855	if ($pl->ob->{_link_pos}) {
1856	$pl->ob->enter_link;
1857	(async {
1858	$pl->ob->reply (undef,
1859	"There was an internal problem at your last logout, "
1860	. "the server will try to bring you to your intended destination in a second.",
1861	cf::NDI_RED);
1862	# we need this sleep as the login has a concurrent enter_exit running
1863	# and this sleep increases chances of the player not ending up in scorn
1864	Coro::Timer::sleep 1;
1865	$pl->ob->leave_link;
1866	})->prio (2);
1867	}
1868	},
1869	);
1870
1871	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1872		2227
		2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
		2232
1873	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1874		2236
1875	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1876	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1877		2242
1878	$self->enter_link;	2243	$self->enter_link;
1879		2244
1880	(async {	2245	(async {
1881	my $map = eval {	2246	my $map = eval {
1882	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1883	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
		2251	$map = $check->($map) if $check && $map;
		2252	} else {
		2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
		2255
1884	$map	2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
1885	} or	2262	}
1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1887		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1888	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1889	})->prio (1);	2268	})->prio (1);
1890	}	2269	}
1891		2270
1892	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1893		2272
…		…
1932		2311
1933	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1934		2313
1935	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1936	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2316	my $meta = "$RANDOMDIR/$md5.meta";
1938		2317
1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1940	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
1941	undef $fh;	2320	undef $fh;
1942	aio_rename "$meta~", $meta;	2321	aio_rename "$meta~", $meta;
…		…
1951		2330
1952	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1953		2332
1954	if ($exit->slaying eq "/!") {	2333	if ($exit->slaying eq "/!") {
1955	#TODO: this should de-fi-ni-te-ly not be a sync-job	2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
1956	cf::sync_job { prepare_random_map $exit };	2337	cf::sync_job { prepare_random_map $exit };
1957	}	2338	}
1958		2339
1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960	my $hp = $exit->stats->hp;	2341	my $hp = $exit->stats->hp;
…		…
1968	$self->goto ($slaying, $hp, $sp);	2349	$self->goto ($slaying, $hp, $sp);
1969		2350
1970	1;	2351	1;
1971	}) {	2352	}) {
1972	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1973	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1974	. "Please report this to the dungeon master!",	2355	. "Please report this to the dungeon master!",
1975	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1976		2357
1977	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1978	$self->leave_link;	2359	$self->leave_link;
1979	}	2360	}
1980	})->prio (1);	2361	})->prio (1);
…		…
1993		2374
1994	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1995	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1996		2377
1997	utf8::encode $text;	2378	utf8::encode $text;
1998	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1999	}	2380	}
2000		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
2001		2432
2002	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
2003		2434
2004	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
2005	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2006	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2007		2438
2008	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
2009	reliable at some point in the future.	2440	become reliable at some point in the future.
2010		2441
2011	=cut	2442	=cut
2012		2443
2013	sub cf::client::query {	2444	sub cf::client::query {
2014	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
2022	utf8::encode $text;	2453	utf8::encode $text;
2023	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2024		2455
2025	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
2026	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
2027	}	2460	}
2028		2461
2029	cf::client->attach (	2462	cf::client->attach (
2030	on_reply => sub {	2463	on_reply => sub {
2031	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2046	} else {	2479	} else {
2047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2048	}	2481	}
2049	}	2482	}
2050	},	2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
		2501	},
2051	);	2502	);
2052		2503
2053	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2054		2505
2055	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
…		…
2102		2553
2103	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
2104		2555
2105	=pod	2556	=pod
2106		2557
2107	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
2108		2559
2109	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
2110	cf::object::player player	2561	cf::object::player player
2111	cf::player peaceful	2562	cf::player peaceful
2112	cf::map trigger	2563	cf::map trigger
…		…
2193	=back	2644	=back
2194		2645
2195	=cut	2646	=cut
2196		2647
2197	#############################################################################	2648	#############################################################################
2198
2199	=head2 EXTENSION DATABASE SUPPORT
2200
2201	Crossfire maintains a very simple database for extension use. It can
2202	currently store anything that can be serialised using Storable, which
2203	excludes objects.
2204
2205	The parameter C<$family> should best start with the name of the extension
2206	using it, it should be unique.
2207
2208	=over 4
2209
2210	=item $value = cf::db_get $family => $key
2211
2212	Returns a single value from the database.
2213
2214	=item cf::db_put $family => $key => $value
2215
2216	Stores the given C<$value> in the family.
2217
2218	=cut
2219
2220	our $DB;
2221
2222	sub db_init {
2223	unless ($DB) {
2224	$DB = BDB::db_create $DB_ENV;
2225
2226	cf::sync_job {
2227	eval {
2228	$DB->set_flags (BDB::CHKSUM);
2229
2230	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2231	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232	cf::cleanup "db_open(db): $!" if $!;
2233	};
2234	cf::cleanup "db_open(db): $@" if $@;
2235	};
2236
2237	my $path = cf::localdir . "/database.pst";
2238	if (stat $path) {
2239	cf::sync_job {
2240	my $pst = Storable::retrieve $path;
2241
2242	cf::db_put (board => data => $pst->{board});
2243	cf::db_put (guildrules => data => $pst->{guildrules});
2244	cf::db_put (rent => balance => $pst->{rent}{balance});
2245	BDB::db_env_txn_checkpoint $DB_ENV;
2246
2247	unlink $path;
2248	};
2249	}
2250	}
2251	}
2252
2253	sub db_get($$) {
2254	my $key = "$_[0]/$_[1]";
2255
2256	cf::sync_job {
2257	BDB::db_get $DB, undef, $key, my $data;
2258
2259	$! ? ()
2260	: Compress::LZF::sthaw $data
2261	}
2262	}
2263
2264	sub db_put($$$) {
2265	BDB::dbreq_pri 4;
2266	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2267	}
2268
2269	#############################################################################
2270	# the server's init and main functions	2649	# the server's init and main functions
2271		2650
2272	sub load_faces {	2651	sub load_facedata($) {
2273	my $path = sprintf "%s/faces", cf::datadir;	2652	my ($path) = @_;
2274		2653
2275	warn "loading faces from $path\n";	2654	warn "loading facedata from $path\n";
2276		2655
2277	my $faces;	2656	my $facedata;
2278	0 < aio_load $path, $faces	2657	0 < aio_load $path, $facedata
2279	or die "$path: $!";	2658	or die "$path: $!";
2280		2659
2281	Coro::cede;
2282	$faces = Storable::thaw $faces;	2660	$facedata = Coro::Storable::thaw $facedata;
2283	Coro::cede;
2284		2661
		2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2664
		2665	{
		2666	my $faces = $facedata->{faceinfo};
		2667
2285	while (my ($face, $info) = each %$faces) {	2668	while (my ($face, $info) = each %$faces) {
2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2289	Coro::cede;	2673	Coro::cede;
		2674	}
		2675
		2676	while (my ($face, $info) = each %$faces) {
		2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
2290	}	2698	}
2291		2699
2292	1	2700	1
2293	}	2701	}
2294		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
		2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
2295	sub reload_resources {	2723	sub reload_resources {
2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2724	warn "reloading resource files...\n";
2297	or die "unable to load regions file\n";#d#	2725
		2726	reload_regions;
2298	load_faces	2727	reload_facedata;
2299	or die "unable to load faces\n";#d#	2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
2300	}	2733	}
2301		2734
2302	sub init {	2735	sub init {
2303	reload_resources;	2736	reload_resources;
2304	}	2737	}
2305		2738
2306	sub cfg_load {	2739	sub cfg_load {
2307	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2308	or return;	2741	or return;
2309		2742
2310	local $/;	2743	local $/;
2311	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2312		2745
…		…
2357	},	2790	},
2358	);	2791	);
2359	}	2792	}
2360	}	2793	}
2361		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
2362	sub emergency_save() {	2833	sub emergency_save() {
2363	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2364		2835
2365	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2366		2837
…		…
2397		2868
2398	warn Carp::longmess "post_cleanup backtrace"	2869	warn Carp::longmess "post_cleanup backtrace"
2399	if $make_core;	2870	if $make_core;
2400	}	2871	}
2401		2872
2402	sub reload() {	2873	sub do_reload_perl() {
2403	# can/must only be called in main	2874	# can/must only be called in main
2404	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2405	warn "can only reload from main coroutine";	2876	warn "can only reload from main coroutine";
2406	return;	2877	return;
2407	}	2878	}
…		…
2441	%EXT_CORO = ();	2912	%EXT_CORO = ();
2442		2913
2443	warn "removing commands";	2914	warn "removing commands";
2444	%COMMAND = ();	2915	%COMMAND = ();
2445		2916
2446	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2447	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2448		2920
2449	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2450	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2451	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2452		2924
…		…
2482	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2484		2956
2485	warn "unloading cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2486	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2487		2960
2488	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2489	# and global variables created in xs	2962	# and global variables created in xs
2490	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2491		2964
…		…
2506	warn "reattaching attachments to maps";	2979	warn "reattaching attachments to maps";
2507	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
2508	warn "reattaching attachments to players";	2981	warn "reattaching attachments to players";
2509	reattach $_ for values %PLAYER;	2982	reattach $_ for values %PLAYER;
2510		2983
2511	warn "loading reloadable resources";
2512	reload_resources;
2513
2514	warn "leaving sync_job";	2984	warn "leaving sync_job";
2515		2985
2516	1	2986	1
2517	} or do {	2987	} or do {
2518	warn $@;	2988	warn $@;
…		…
2523	warn "reloaded";	2993	warn "reloaded";
2524	};	2994	};
2525		2995
2526	our $RELOAD_WATCHER; # used only during reload	2996	our $RELOAD_WATCHER; # used only during reload
2527		2997
		2998	sub reload_perl() {
		2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
		3001
		3002	$RELOAD_WATCHER ||= Event->timer (
		3003	reentrant => 0,
		3004	after => 0,
		3005	data => WF_AUTOCANCEL,
		3006	cb => sub {
		3007	do_reload_perl;
		3008	undef $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2528	register_command "reload" => sub {	3013	register_command "reload" => sub {
2529	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2530		3015
2531	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2532	$who->message ("reloading server.");	3017	$who->message ("reloading server.");
2533		3018	async { reload_perl };
2534	# doing reload synchronously and two reloads happen back-to-back,
2535	# coro crashes during coro_state_free->destroy here.
2536
2537	$RELOAD_WATCHER ||= Event->timer (
2538	reentrant => 0,
2539	after => 0,
2540	data => WF_AUTOCANCEL,
2541	cb => sub {
2542	reload;
2543	undef $RELOAD_WATCHER;
2544	},
2545	);
2546	}	3019	}
2547	};	3020	};
2548		3021
2549	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2550		3023
2551	my $bug_warning = 0;	3024	my $bug_warning = 0;
2552		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2553	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2554	reentrant => 0,	3050	reentrant => 0,
2555	parked => 1,	3051	parked => 1,
2556	prio => 0,	3052	prio => 0,
2557	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
…		…
2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2562	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2563	return;	3059	return;
2564	}	3060	}
2565		3061
2566	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2567		3063
2568	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
		3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3087	};
		3088
2569	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2570	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2571		3091
2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573	$NEXT_RUNTIME_WRITE = $NOW + 10;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2575	write_runtime	3095	write_runtime
2576	or warn "ERROR: unable to write runtime file: $!";	3096	or warn "ERROR: unable to write runtime file: $!";
2577	};	3097	};
2578	}	3098	}
2579		3099
2580	$WAIT_FOR_TICK->broadcast;
2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582
2583	# my $AFTER = Event::time;	3100	# my $AFTER = Event::time;
2584	# warn $AFTER - $NOW;#d#	3101	# warn $AFTER - $NOW;#d#
2585		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2586	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2588		3114
2589	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2590	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2591	},	3124	},
2592	);	3125	);
2593		3126
2594	{	3127	{
2595	BDB::max_poll_time $TICK * 0.1;	3128	BDB::max_poll_time $TICK * 0.1;
…		…
2623		3156
2624	cf::sync_job {	3157	cf::sync_job {
2625	eval {	3158	eval {
2626	BDB::db_env_open	3159	BDB::db_env_open
2627	$DB_ENV,	3160	$DB_ENV,
2628	$BDB_ENV_DIR,	3161	$BDBDIR,
2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631	0666;	3164	0666;
2632		3165
2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2634		3167
2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636	$DB_ENV->set_lk_detect;	3169	$DB_ENV->set_lk_detect;
2637	};	3170	};
2638		3171
…		…
2654	prio => 6,	3187	prio => 6,
2655	cb => \&IO::AIO::poll_cb,	3188	cb => \&IO::AIO::poll_cb,
2656	);	3189	);
2657	}	3190	}
2658		3191
		3192	my $_log_backtrace;
		3193
		3194	sub _log_backtrace {
		3195	my ($msg, @addr) = @_;
		3196
		3197	$msg =~ s/\n//;
		3198
		3199	# limit the # of concurrent backtraces
		3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
		3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
		3227	}
		3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
		3232
2659	END { cf::emergency_save }	3233	END { cf::emergency_save }
2660		3234
2661	1	3235	1
2662		3236

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