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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.221 by pippijn, Fri Mar 2 13:32:52 2007 UTC vs.
Revision 1.304 by root, Wed Jul 11 16:55:18 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
		25	use JSON::XS 1.4 ();
20	use BDB ();	26	use BDB ();
21	use Data::Dumper;	27	use Data::Dumper;
22	use Digest::MD5;	28	use Digest::MD5;
23	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
24	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	32	use Time::HiRes;
27	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
28		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	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	40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		41
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$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		43
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
37		46
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
40	our %COMMAND = ();	51	our %COMMAND = ();
41	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
42		53
43	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
47		59
		60	our $RELOAD; # number of reloads so far
48	our @EVENT;	61	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		62
51	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
52	our $TICK_WATCHER;	76	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	79	our $NEXT_TICK;
56	our $NOW;	80	our $NOW;
…		…
65	our $RUNTIME;	89	our $RUNTIME;
66		90
67	our %PLAYER; # all users	91	our %PLAYER; # all users
68	our %MAP; # all maps	92	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		94
76	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
79	binmode STDOUT;	102	binmode STDOUT;
80	binmode STDERR;	103	binmode STDERR;
81		104
82	# read virtual server time, if available	105	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
87	}	110	}
88		111
89	mkdir cf::localdir;	112	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		114
96	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
97		116
98	sub cf::map::normalise;	117	sub cf::map::normalise;
99		118
…		…
110	=item $cf::RUNTIME	129	=item $cf::RUNTIME
111		130
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	132	every server tick.
114		133
115	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		137
117	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
119		142
120	=item $cf::NOW	143	=item $cf::NOW
121		144
122	The time of the last (current) server tick.	145	The time of the last (current) server tick.
123		146
124	=item $cf::TICK	147	=item $cf::TICK
125		148
126	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
127		160
128	=item %cf::CFG	161	=item %cf::CFG
129		162
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
131	from wherever your confdir points to.	164	from wherever your confdir points to.
132		165
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		167
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.
139		171
140	=back	172	=back
141		173
142	=cut	174	=cut
143		175
144	BEGIN {	176	BEGIN {
145	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	178	my $msg = join "", @_;
147	utf8::encode $msg;
148		179
149	$msg .= "\n"	180	$msg .= "\n"
150	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
151		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
152	LOG llevError, $msg;	186	LOG llevError, $msg;
153	};	187	};
154	}	188	}
155		189
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		197
163	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	199	# within the Safe compartment.
165	for my $pkg (qw(	200	for my $pkg (qw(
166	cf::global cf::attachable	201	cf::global cf::attachable
…		…
174	}	209	}
175		210
176	$Event::DIED = sub {	211	$Event::DIED = sub {
177	warn "error in event callback: @_";	212	warn "error in event callback: @_";
178	};	213	};
		214
		215	#############################################################################
179		216
180	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
181		218
182	=over 4	219	=over 4
183		220
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	240	$d
204	} || "[unable to dump $_[0]: '$@']";	241	} || "[unable to dump $_[0]: '$@']";
205	}	242	}
206		243
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
210		245
211	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
212		247
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
221		249
222	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
223		251
224	=cut	252	=cut
225		253
226	sub to_json($) {	254	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
228	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
229	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
230		258
231	=item cf::lock_wait $string	259	=item cf::lock_wait $string
232		260
233	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
234		262
…		…
240	returned.	268	returned.
241		269
242	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
243	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
244		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
245	=cut	277	=cut
246		278
247	our %LOCK;	279	our %LOCK;
248		280
249	sub lock_wait($) {	281	sub lock_wait($) {
…		…
266		298
267	Coro::guard {	299	Coro::guard {
268	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
270	}	302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
271	}	309	}
272		310
273	sub freeze_mainloop {	311	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
275		313
…		…
290		328
291	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
292		330
293	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
294		332
295	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
298		337
299	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
302	fast or be very important.	341	fast or be very important.
…		…
305		344
306	sub sync_job(&) {	345	sub sync_job(&) {
307	my ($job) = @_;	346	my ($job) = @_;
308		347
309	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
310	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
312		353
313	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
314	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
325		366
326	while ($busy) {	367	while ($busy) {
327	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
328	}	369	}
329		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
330	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
331	} else {	379	} else {
332	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
333		381
334	$job->()	382	$job->()
…		…
353	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
354		402
355	$coro	403	$coro
356	}	404	}
357		405
358	sub write_runtime {	406	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		407
361	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.
362		412
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	413	=cut
364	or return;
365		414
366	my $value = $cf::RUNTIME + 90 + 10;	415	sub _store_scalar {
367	# 10 is the runtime save interval, for a monotonic clock	416	open my $fh, ">", \my $buf
368	# 60 allows for the watchdog to kill the server.	417	or die "fork_call: cannot open fh-to-buf in child : $!";
369		418	Storable::store_fd $_[0], $fh;
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
371	and return;
372
373	# always fsync - this file is important
374	aio_fsync $fh
375	and return;
376
377	close $fh	419	close $fh;
378	or return;
379		420
380	aio_rename "$runtime~", $runtime	421	$buf
381	and return;	422	}
382		423
		424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
383	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
		582	}
		583
		584	=item cf::datalog type => key => value, ...
		585
		586	Log a datalog packet of the given type with the given key-value pairs.
		587
		588	=cut
		589
		590	sub datalog($@) {
		591	my ($type, %kv) = @_;
		592	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	593	}
385		594
386	=back	595	=back
387		596
388	=cut	597	=cut
…		…
395	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
397		606
398	In the following description, CLASS can be any of C<global>, C<object>	607	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	609	Crossfire TRT).
401		610
402	=over 4	611	=over 4
403		612
404	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
405		614
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
569		778
570	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		783
575	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	785	my $pkg = shift @arg;
577		786
578	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
608	}	817	}
609		818
610	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
611	} else {	820	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	822	}
614		823
615	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
616	}	825	}
617		826
…		…
619	if (ref $_[0]) {	828	if (ref $_[0]) {
620	_object_attach @_;	829	_object_attach @_;
621	} else {	830	} else {
622	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
623	}	832	}
		833	_recalc_want;
624	};	834	};
625		835
626	# all those should be optimised	836	# all those should be optimised
627	sub cf::attachable::detach {	837	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
632	reattach ($obj);	842	reattach ($obj);
633	} else {	843	} else {
634	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
635	}	845	}
		846	_recalc_want;
636	};	847	};
637		848
638	sub cf::attachable::attached {	849	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
640		851
…		…
813	or return;	1024	or return;
814	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
815	}	1026	}
816		1027
817	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
819	return ($data, $av);	1030	return ($data, $av);
820	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
821		1038
822	#############################################################################	1039	#############################################################################
823	# command handling &c	1040	# command handling &c
824		1041
825	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1056	}
840		1057
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1059
843	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
844		1065
845	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
846	called.	1067	called.
847		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
848	=cut	1080	=cut
849		1081
850	sub register_extcmd {	1082	sub register_extcmd {
851	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
852		1084
853	$EXTCMD{$name} = $cb;	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
854	}	1092	}
855		1093
856	cf::player->attach (	1094	cf::player->attach (
857	on_command => sub {	1095	on_command => sub {
858	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
867	cf::override;	1105	cf::override;
868	},	1106	},
869	on_extcmd => sub {	1107	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
871		1109
872	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1111
874	if (ref $msg) {	1112	if (ref $msg) {
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
876	if (my %reply = $cb->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
877	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
883		1121
884	cf::override;	1122	cf::override;
885	},	1123	},
886	);	1124	);
887		1125
888	sub load_extension {
889	my ($path) = @_;
890
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
892	my $base = $1;
893	my $pkg = $1;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}
916	die $@;
917	}
918
919	push @EXTS, $pkg;
920	}
921
922	sub load_extensions {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
923	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1131	next unless -r $path;
925	eval {	1132
926	load_extension $ext;	1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
927	1	1190	}
928	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
929	}	1196	};
930	}	1197	}
931		1198
932	#############################################################################	1199	#############################################################################
933		1200
		1201	=back
		1202
934	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
935		1204
936	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
937		1206
938	=cut	1207	=cut
…		…
950	Returns the given player object, loading it if necessary (might block).	1219	Returns the given player object, loading it if necessary (might block).
951		1220
952	=cut	1221	=cut
953		1222
954	sub playerdir($) {	1223	sub playerdir($) {
955	cf::localdir	1224	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1226	}
961		1227
962	sub path($) {	1228	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1230
965	(playerdir $login) . "/$login.pl"	1231	(playerdir $login) . "/playerdata"
966	}	1232	}
967		1233
968	sub find_active($) {	1234	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1235	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1236	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1249	my $login = $_[0];
984		1250
985	my $guard = cf::lock_acquire "user_find:$login";	1251	my $guard = cf::lock_acquire "user_find:$login";
986		1252
987	$cf::PLAYER{$_[0]} || do {	1253	$cf::PLAYER{$_[0]} || do {
		1254	# rename old playerfiles to new ones
		1255	#TODO: remove when no longer required
		1256	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1257	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1258	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1259	aio_unlink +(playerdir $login) . "/$login.pl";
		1260
988	my $pl = load_pl path $login	1261	my $pl = load_pl path $login
989	or return;	1262	or return;
990	$cf::PLAYER{$login} = $pl	1263	$cf::PLAYER{$login} = $pl
991	}	1264	}
992	}	1265	}
…		…
1076	while and may block, so not sync_job-capable, ever.	1349	while and may block, so not sync_job-capable, ever.
1077		1350
1078	=cut	1351	=cut
1079		1352
1080	sub list_logins {	1353	sub list_logins {
1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1354	my $dirs = aio_readdir $PLAYERDIR
1082	or return [];	1355	or return [];
1083		1356
1084	my @logins;	1357	my @logins;
1085		1358
1086	for my $login (@$dirs) {	1359	for my $login (@$dirs) {
…		…
1121	}	1394	}
1122		1395
1123	\@paths	1396	\@paths
1124	}	1397	}
1125		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&amp;/g;
		1410	s/(?<![BIUGH])</&lt;/g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male|female> tags
		1420	|| s{G<([^>|]*)\|([^>]*)>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	|| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1126	=item $player->ext_reply ($msgid, $msgtype, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1127		1450
1128	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1129		1452
1130	=cut	1453	=cut
1131		1454
1132	sub ext_reply($$$%) {	1455	sub ext_reply($$%) {
1133	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1134		1457
1135	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1136		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1137	$self->send ("ext " . cf::to_json \%msg);
1138	}	1460	}
1139		1461
1140	package cf;	1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
		1489	my ($path) = @_;
		1490
		1491	my ($match, $specificity);
		1492
		1493	for my $region (list) {
		1494	if ($region->{match} && $path =~ $region->{match}) {
		1495	($match, $specificity) = ($region, $region->specificity)
		1496	if $region->specificity > $specificity;
		1497	}
		1498	}
		1499
		1500	$match
		1501	}
1141		1502
1142	=back	1503	=back
1143
1144		1504
1145	=head3 cf::map	1505	=head3 cf::map
1146		1506
1147	=over 4	1507	=over 4
1148		1508
…		…
1203	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1204		1564
1205	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1206	local $self->{path};	1566	local $self->{path};
1207	local $self->{load_path};	1567	local $self->{load_path};
1208	local $self->{deny_save};
1209	local $self->{deny_reset};
1210		1568
1211	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1212	}	1570	}
1213		1571
1214	sub normalise {	1572	sub normalise {
…		…
1286		1644
1287	# the original (read-only) location	1645	# the original (read-only) location
1288	sub load_path {	1646	sub load_path {
1289	my ($self) = @_;	1647	my ($self) = @_;
1290		1648
1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1649	"$MAPDIR/$self->{path}.map"
1292	}	1650	}
1293		1651
1294	# the temporary/swap location	1652	# the temporary/swap location
1295	sub save_path {	1653	sub save_path {
1296	my ($self) = @_;	1654	my ($self) = @_;
1297		1655
1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1657	"$TMPDIR/$path.map"
1300	}	1658	}
1301		1659
1302	# the unique path, undef == no special unique path	1660	# the unique path, undef == no special unique path
1303	sub uniq_path {	1661	sub uniq_path {
1304	my ($self) = @_;	1662	my ($self) = @_;
1305		1663
1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1665	"$UNIQUEDIR/$path"
1308	}	1666	}
1309		1667
1310	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1311	# all maps in C++...	1669	# all maps in C++...
1312	sub change_all_map_light {	1670	sub change_all_map_light {
1313	my ($change) = @_;	1671	my ($change) = @_;
1314		1672
1315	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1316	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
		1675	}
		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
1317	}	1683	}
1318		1684
1319	sub unlink_save {	1685	sub unlink_save {
1320	my ($self) = @_;	1686	my ($self) = @_;
1321		1687
…		…
1379	$self->load_header_orig	1745	$self->load_header_orig
1380	or return;	1746	or return;
1381	$self->prepare_orig;	1747	$self->prepare_orig;
1382	}	1748	}
1383		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
		1753	$self->default_region (cf::region::find_by_path $self->{path})
		1754	unless $self->default_region;
		1755
1384	1	1756	1
1385	}	1757	}
1386		1758
1387	sub find;	1759	sub find;
1388	sub find {	1760	sub find {
…		…
1400	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1401		1773
1402	$map->load_header	1774	$map->load_header
1403	or return;	1775	or return;
1404		1776
1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1406	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1407	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1408	$map->reset;	1780	$map->reset;
1409	undef $guard;	1781	undef $guard;
1410	return find $path;	1782	return find $path;
…		…
1421	my ($self) = @_;	1793	my ($self) = @_;
1422		1794
1423	local $self->{deny_reset} = 1; # loading can take a long time	1795	local $self->{deny_reset} = 1; # loading can take a long time
1424		1796
1425	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1426	my $guard = cf::lock_acquire "map_load:$path";	1800	my $guard = cf::lock_acquire "map_load:$path";
1427		1801
1428	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1429		1803
1430	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1431		1805
1432	$self->alloc;	1806	$self->alloc;
1433		1807
1434	$self->pre_load;	1808	$self->pre_load;
1435
1436	$self->_load_objects ($self->{load_path}, 1)
1437	or return;
1438
1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1440	if delete $self->{load_original};
1441
1442	if (my $uniq = $self->uniq_path) {
1443	utf8::encode $uniq;
1444	if (aio_open $uniq, O_RDONLY, 0) {
1445	$self->clear_unique_items;
1446	$self->_load_objects ($uniq, 0);
1447	}
1448	}
1449
1450	Coro::cede;
1451
1452	# now do the right thing for maps
1453	$self->link_multipart_objects;
1454
1455	unless ($self->{deny_activate}) {
1456	$self->decay_objects;
1457	$self->fix_auto_apply;
1458	$self->update_buttons;
1459	Coro::cede;	1809	Coro::cede;
1460	$self->set_darkness_map;	1810
		1811	$self->_load_objects ($self->{load_path}, 1)
		1812	or return;
		1813
		1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1815	if delete $self->{load_original};
		1816
		1817	if (my $uniq = $self->uniq_path) {
		1818	utf8::encode $uniq;
		1819	if (aio_open $uniq, O_RDONLY, 0) {
		1820	$self->clear_unique_items;
		1821	$self->_load_objects ($uniq, 0);
		1822	}
		1823	}
		1824
		1825	Coro::cede;
		1826	# now do the right thing for maps
		1827	$self->link_multipart_objects;
1461	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1462	unless $self->difficulty;	1829	unless $self->difficulty;
1463	Coro::cede;	1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1464	$self->activate;	1839	$self->activate;
		1840	}
		1841
		1842	$self->in_memory (cf::MAP_IN_MEMORY);
1465	}	1843	}
1466		1844
1467	$self->post_load;	1845	$self->post_load;
1468
1469	$self->in_memory (cf::MAP_IN_MEMORY);
1470	}	1846	}
1471		1847
1472	sub customise_for {	1848	sub customise_for {
1473	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1474		1850
1475	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1476	if $self->per_player;	1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
1477		1856
1478	$self	1857	$self
1479	}	1858	}
1480		1859
1481	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
…		…
1592		1971
1593	sub reset_at {	1972	sub reset_at {
1594	my ($self) = @_;	1973	my ($self) = @_;
1595		1974
1596	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
1598	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1599		1977
1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1601	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1602		1980
…		…
1613	my ($self) = @_;	1991	my ($self) = @_;
1614		1992
1615	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1616		1994
1617	return if $self->players;	1995	return if $self->players;
1618	return if $self->isa ("ext::map_per_player");#d#
1619		1996
1620	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1621		1998
1622	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1623		2000
1624	# need to save uniques path	2001	# need to save uniques path
1625	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1657	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1658		2035
1659	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1660	}	2037	}
1661		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1662	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1663		2076
1664	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1665	instantiated unique items. May block.	2078	instantiated unique items. May block.
1666		2079
1667	=cut	2080	=cut
1668		2081
1669	sub unique_maps() {	2082	sub unique_maps() {
1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2083	[
1671	or return;	2084	map {
1672
1673	my @paths;
1674
1675	for (@$files) {
1676	utf8::decode $_;	2085	utf8::decode $_;
1677	next if /\.pst$/;	2086	/\.map$/
1678	next unless /^$PATH_SEP/o;	2087	? normalise $_
1679		2088	: ()
1680	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1681	}	2090	]
1682
1683	\@paths
1684	}	2091	}
1685		2092
1686	package cf;	2093	package cf;
1687		2094
1688	=back	2095	=back
…		…
1734		2141
1735	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1736		2143
1737	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1738	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1739	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1740	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1741	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1742	}	2163	}
1743	}	2164	}
1744		2165
1745	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1746		2167
…		…
1794	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1795		2216
1796	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1797		2218
1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1799	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1800		2221
1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1802	}	2223	}
1803		2224
1804	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1805	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1806		2229
1807	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1808		2231
1809	unless ($map) {	2232	unless ($map) {
1810	# restore original map position	2233	# restore original map position
…		…
1833		2256
1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1835	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1836	}	2259	}
1837		2260
1838	cf::player->attach (
1839	on_logout => sub {
1840	my ($pl) = @_;
1841
1842	# abort map switching before logout
1843	if ($pl->ob->{_link_pos}) {
1844	cf::sync_job {
1845	$pl->ob->leave_link
1846	};
1847	}
1848	},
1849	on_login => sub {
1850	my ($pl) = @_;
1851
1852	# try to abort aborted map switching on player login :)
1853	# should happen only on crashes
1854	if ($pl->ob->{_link_pos}) {
1855	$pl->ob->enter_link;
1856	(async {
1857	$pl->ob->reply (undef,
1858	"There was an internal problem at your last logout, "
1859	. "the server will try to bring you to your intended destination in a second.",
1860	cf::NDI_RED);
1861	# we need this sleep as the login has a concurrent enter_exit running
1862	# and this sleep increases chances of the player not ending up in scorn
1863	Coro::Timer::sleep 1;
1864	$pl->ob->leave_link;
1865	})->prio (2);
1866	}
1867	},
1868	);
1869
1870	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1871		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1872	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1873		2271
1874	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1875	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1876		2277
1877	$self->enter_link;	2278	$self->enter_link;
1878		2279
1879	(async {	2280	(async {
1880	my $map = eval {	2281	my $map = eval {
1881	my $map = cf::map::find $path;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1882	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
		2286	$map = $check->($map) if $check && $map;
		2287	} else {
		2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
		2290
1883	$map	2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
1884	} or	2297	}
1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1886		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1887	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1888	})->prio (1);	2303	})->prio (1);
1889	}	2304	}
1890		2305
1891	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1892		2307
…		…
1931		2346
1932	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1933		2348
1934	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1935	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2351	my $meta = "$RANDOMDIR/$md5.meta";
1937		2352
1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1939	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
1940	undef $fh;	2355	undef $fh;
1941	aio_rename "$meta~", $meta;	2356	aio_rename "$meta~", $meta;
…		…
1950		2365
1951	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1952		2367
1953	if ($exit->slaying eq "/!") {	2368	if ($exit->slaying eq "/!") {
1954	#TODO: this should de-fi-ni-te-ly not be a sync-job	2369	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2370	# the problem is that $exit might not survive long enough
		2371	# so it needs to be done right now, right here
1955	cf::sync_job { prepare_random_map $exit };	2372	cf::sync_job { prepare_random_map $exit };
1956	}	2373	}
1957		2374
1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
1960	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
1961		2378
1962	$self->enter_link;	2379	$self->enter_link;
		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
1963		2384
1964	(async {	2385	(async {
1965	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
1966	unless (eval {	2387	unless (eval {
1967	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
1968		2389
1969	1;	2390	1;
1970	}) {	2391	}) {
1971	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1972	. "I'll try to bring you back to the map you were before. "	2393	. "I'll try to bring you back to the map you were before. "
1973	. "Please report this to the dungeon master!",	2394	. "Please report this to the dungeon master!",
1974	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1975		2396
1976	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1977	$self->leave_link;	2398	$self->leave_link;
1978	}	2399	}
1979	})->prio (1);	2400	})->prio (1);
…		…
1992		2413
1993	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1994	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1995		2416
1996	utf8::encode $text;	2417	utf8::encode $text;
1997	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1998	}	2419	}
1999		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
		2461	=item $client->ext_event ($type, %msg)
		2462
		2463	Sends an ext event to the client.
		2464
		2465	=cut
		2466
		2467	sub cf::client::ext_event($$%) {
		2468	my ($self, $type, %msg) = @_;
		2469
		2470	$msg{msgtype} = "event_$type";
		2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2472	}
2000		2473
2001	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
2002		2475
2003	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
2004	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2477	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2005	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2006		2479
2007	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
2008	reliable at some point in the future.	2481	become reliable at some point in the future.
2009		2482
2010	=cut	2483	=cut
2011		2484
2012	sub cf::client::query {	2485	sub cf::client::query {
2013	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
2021	utf8::encode $text;	2494	utf8::encode $text;
2022	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2023		2496
2024	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
2025	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
2026	}	2501	}
2027		2502
2028	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
2029	on_reply => sub {	2509	on_reply => sub {
2030	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
2031		2511
2032	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
2033	# get handled first	2513	# get handled first
…		…
2045	} else {	2525	} else {
2046	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2047	}	2527	}
2048	}	2528	}
2049	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
2050	);	2548	);
2051		2549
2052	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
2053		2551
2054	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2101		2599
2102	# here we export the classes and methods available to script code	2600	# here we export the classes and methods available to script code
2103		2601
2104	=pod	2602	=pod
2105		2603
2106	The following fucntions and emthods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2107		2605
2108	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2109	cf::object::player player	2610	cf::object::player
2110	cf::player peaceful	2611	player
2111	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2112		2618
2113	=cut	2619	=cut
2114		2620
2115	for (	2621	for (
2116	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2117	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2118	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2119	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2120	) {	2627	) {
2121	no strict 'refs';	2628	no strict 'refs';
…		…
2192	=back	2699	=back
2193		2700
2194	=cut	2701	=cut
2195		2702
2196	#############################################################################	2703	#############################################################################
2197
2198	=head2 EXTENSION DATABASE SUPPORT
2199
2200	Crossfire maintains a very simple database for extension use. It can
2201	currently store anything that can be serialised using Storable, which
2202	excludes objects.
2203
2204	The parameter C<$family> should best start with the name of the extension
2205	using it, it should be unique.
2206
2207	=over 4
2208
2209	=item $value = cf::db_get $family => $key
2210
2211	Returns a single value from the database.
2212
2213	=item cf::db_put $family => $key => $value
2214
2215	Stores the given C<$value> in the family.
2216
2217	=cut
2218
2219	our $DB;
2220
2221	sub db_init {
2222	unless ($DB) {
2223	$DB = BDB::db_create $DB_ENV;
2224
2225	cf::sync_job {
2226	eval {
2227	$DB->set_flags (BDB::CHKSUM);
2228
2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231	cf::cleanup "db_open(db): $!" if $!;
2232	};
2233	cf::cleanup "db_open(db): $@" if $@;
2234	};
2235
2236	my $path = cf::localdir . "/database.pst";
2237	if (stat $path) {
2238	cf::sync_job {
2239	my $pst = Storable::retrieve $path;
2240
2241	cf::db_put (board => data => $pst->{board});
2242	cf::db_put (guildrules => data => $pst->{guildrules});
2243	cf::db_put (rent => balance => $pst->{rent}{balance});
2244	BDB::db_env_txn_checkpoint $DB_ENV;
2245
2246	unlink $path;
2247	};
2248	}
2249	}
2250	}
2251
2252	sub db_get($$) {
2253	my $key = "$_[0]/$_[1]";
2254
2255	cf::sync_job {
2256	BDB::db_get $DB, undef, $key, my $data;
2257
2258	$! ? ()
2259	: Compress::LZF::sthaw $data
2260	}
2261	}
2262
2263	sub db_put($$$) {
2264	BDB::dbreq_pri 4;
2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2266	}
2267
2268	#############################################################################
2269	# the server's init and main functions	2704	# the server's init and main functions
2270		2705
2271	sub init_resources {	2706	sub load_facedata($) {
2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2707	my ($path) = @_;
		2708
		2709	warn "loading facedata from $path\n";
		2710
		2711	my $facedata;
		2712	0 < aio_load $path, $facedata
		2713	or die "$path: $!";
		2714
		2715	$facedata = Coro::Storable::thaw $facedata;
		2716
		2717	$facedata->{version} == 2
		2718	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2719
		2720	{
		2721	my $faces = $facedata->{faceinfo};
		2722
		2723	while (my ($face, $info) = each %$faces) {
		2724	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2725	cf::face::set_visibility $idx, $info->{visibility};
		2726	cf::face::set_magicmap $idx, $info->{magicmap};
		2727	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2728	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2729
		2730	cf::cede_to_tick;
		2731	}
		2732
		2733	while (my ($face, $info) = each %$faces) {
		2734	next unless $info->{smooth};
		2735	my $idx = cf::face::find $face
		2736	or next;
		2737	if (my $smooth = cf::face::find $info->{smooth}) {
		2738	cf::face::set_smooth $idx, $smooth;
		2739	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2740	} else {
		2741	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2742	}
		2743
		2744	cf::cede_to_tick;
		2745	}
		2746	}
		2747
		2748	{
		2749	my $anims = $facedata->{animinfo};
		2750
		2751	while (my ($anim, $info) = each %$anims) {
		2752	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2753	cf::cede_to_tick;
		2754	}
		2755
		2756	cf::anim::invalidate_all; # d'oh
		2757	}
		2758
		2759	{
		2760	# TODO: for gcfclient pleasure, we should give resources
		2761	# that gcfclient doesn't grok a >10000 face index.
		2762	my $res = $facedata->{resource};
		2763	my $enc = JSON::XS->new->utf8->canonical;
		2764
		2765	while (my ($name, $info) = each %$res) {
		2766	my $meta = $enc->encode ({
		2767	name => $name,
		2768	type => $info->{type},
		2769	copyright => $info->{copyright}, #TODO#
		2770	});
		2771	my $data = pack "(w/a*)*", $meta, $info->{data};
		2772	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2773
		2774	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2775	cf::face::set_type $idx, 1;
		2776	cf::face::set_data $idx, 0, $data, $chk;
		2777
		2778	cf::cede_to_tick;
		2779	}
		2780	}
		2781
		2782	1
		2783	}
		2784
		2785	sub reload_regions {
		2786	load_resource_file "$MAPDIR/regions"
2273	or die "unable to load regions file\n";#d#	2787	or die "unable to load regions file\n";
		2788
		2789	for (cf::region::list) {
		2790	$_->{match} = qr/$_->{match}/
		2791	if exists $_->{match};
		2792	}
		2793	}
		2794
		2795	sub reload_facedata {
		2796	load_facedata "$DATADIR/facedata"
		2797	or die "unable to load facedata\n";
		2798	}
		2799
		2800	sub reload_archetypes {
		2801	load_resource_file "$DATADIR/archetypes"
		2802	or die "unable to load archetypes\n";
		2803	#d# NEED to laod twice to resolve forward references
		2804	# this really needs to be done in an extra post-pass
		2805	# (which needs to be synchronous, so solve it differently)
		2806	load_resource_file "$DATADIR/archetypes"
		2807	or die "unable to load archetypes\n";
		2808	}
		2809
		2810	sub reload_treasures {
		2811	load_resource_file "$DATADIR/treasures"
		2812	or die "unable to load treasurelists\n";
		2813	}
		2814
		2815	sub reload_resources {
		2816	warn "reloading resource files...\n";
		2817
		2818	reload_regions;
		2819	reload_facedata;
		2820	#reload_archetypes;#d#
		2821	reload_archetypes;
		2822	reload_treasures;
		2823
		2824	warn "finished reloading resource files\n";
		2825	}
		2826
		2827	sub init {
		2828	reload_resources;
2274	}	2829	}
2275		2830
2276	sub cfg_load {	2831	sub cfg_load {
2277	open my $fh, "<:utf8", cf::confdir . "/config"	2832	open my $fh, "<:utf8", "$CONFDIR/config"
2278	or return;	2833	or return;
2279		2834
2280	local $/;	2835	local $/;
2281	*CFG = YAML::Syck::Load <$fh>;	2836	*CFG = YAML::Syck::Load <$fh>;
2282		2837
…		…
2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2845	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2291	and die "WARNING: m(un)lockall failed: $!\n";	2846	and die "WARNING: m(un)lockall failed: $!\n";
2292	};	2847	};
2293	warn $@ if $@;	2848	warn $@ if $@;
2294	}	2849	}
2295	}
2296
2297	sub init {
2298	init_resources;
2299	}	2850	}
2300		2851
2301	sub main {	2852	sub main {
2302	# we must not ever block the main coroutine	2853	# we must not ever block the main coroutine
2303	local $Coro::idle = sub {	2854	local $Coro::idle = sub {
…		…
2331	},	2882	},
2332	);	2883	);
2333	}	2884	}
2334	}	2885	}
2335		2886
		2887	sub write_runtime {
		2888	my $runtime = "$LOCALDIR/runtime";
		2889
		2890	# first touch the runtime file to show we are still running:
		2891	# the fsync below can take a very very long time.
		2892
		2893	IO::AIO::aio_utime $runtime, undef, undef;
		2894
		2895	my $guard = cf::lock_acquire "write_runtime";
		2896
		2897	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2898	or return;
		2899
		2900	my $value = $cf::RUNTIME + 90 + 10;
		2901	# 10 is the runtime save interval, for a monotonic clock
		2902	# 60 allows for the watchdog to kill the server.
		2903
		2904	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2905	and return;
		2906
		2907	# always fsync - this file is important
		2908	aio_fsync $fh
		2909	and return;
		2910
		2911	# touch it again to show we are up-to-date
		2912	aio_utime $fh, undef, undef;
		2913
		2914	close $fh
		2915	or return;
		2916
		2917	aio_rename "$runtime~", $runtime
		2918	and return;
		2919
		2920	warn "runtime file written.\n";
		2921
		2922	1
		2923	}
		2924
2336	sub emergency_save() {	2925	sub emergency_save() {
2337	my $freeze_guard = cf::freeze_mainloop;	2926	my $freeze_guard = cf::freeze_mainloop;
2338		2927
2339	warn "enter emergency perl save\n";	2928	warn "enter emergency perl save\n";
2340		2929
…		…
2371		2960
2372	warn Carp::longmess "post_cleanup backtrace"	2961	warn Carp::longmess "post_cleanup backtrace"
2373	if $make_core;	2962	if $make_core;
2374	}	2963	}
2375		2964
2376	sub reload() {	2965	sub do_reload_perl() {
2377	# can/must only be called in main	2966	# can/must only be called in main
2378	if ($Coro::current != $Coro::main) {	2967	if ($Coro::current != $Coro::main) {
2379	warn "can only reload from main coroutine";	2968	warn "can only reload from main coroutine";
2380	return;	2969	return;
2381	}	2970	}
…		…
2406	Coro::cede;	2995	Coro::cede;
2407	last unless IO::AIO::nreqs || BDB::nreqs;	2996	last unless IO::AIO::nreqs || BDB::nreqs;
2408	warn "iterate...";	2997	warn "iterate...";
2409	}	2998	}
2410		2999
		3000	++$RELOAD;
		3001
2411	warn "cancelling all extension coros";	3002	warn "cancelling all extension coros";
2412	$_->cancel for values %EXT_CORO;	3003	$_->cancel for values %EXT_CORO;
2413	%EXT_CORO = ();	3004	%EXT_CORO = ();
2414		3005
2415	warn "removing commands";	3006	warn "removing commands";
2416	%COMMAND = ();	3007	%COMMAND = ();
2417		3008
2418	warn "removing ext commands";	3009	warn "removing ext/exti commands";
2419	%EXTCMD = ();	3010	%EXTCMD = ();
		3011	%EXTICMD = ();
2420		3012
2421	warn "unloading/nuking all extensions";	3013	warn "unloading/nuking all extensions";
2422	for my $pkg (@EXTS) {	3014	for my $pkg (@EXTS) {
2423	warn "... unloading $pkg";	3015	warn "... unloading $pkg";
2424		3016
…		…
2454	Symbol::delete_package "safe::$_"	3046	Symbol::delete_package "safe::$_"
2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3047	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2456		3048
2457	warn "unloading cf.pm \"a bit\"";	3049	warn "unloading cf.pm \"a bit\"";
2458	delete $INC{"cf.pm"};	3050	delete $INC{"cf.pm"};
		3051	delete $INC{"cf/pod.pm"};
2459		3052
2460	# don't, removes xs symbols, too,	3053	# don't, removes xs symbols, too,
2461	# and global variables created in xs	3054	# and global variables created in xs
2462	#Symbol::delete_package __PACKAGE__;	3055	#Symbol::delete_package __PACKAGE__;
2463		3056
…		…
2472		3065
2473	warn "loading extensions";	3066	warn "loading extensions";
2474	cf::load_extensions;	3067	cf::load_extensions;
2475		3068
2476	warn "reattaching attachments to objects/players";	3069	warn "reattaching attachments to objects/players";
2477	_global_reattach;	3070	_global_reattach; # objects, sockets
2478	warn "reattaching attachments to maps";	3071	warn "reattaching attachments to maps";
2479	reattach $_ for values %MAP;	3072	reattach $_ for values %MAP;
2480		3073	warn "reattaching attachments to players";
2481	warn "loading reloadable resources";	3074	reattach $_ for values %PLAYER;
2482	init_resources;
2483		3075
2484	warn "leaving sync_job";	3076	warn "leaving sync_job";
2485		3077
2486	1	3078	1
2487	} or do {	3079	} or do {
…		…
2493	warn "reloaded";	3085	warn "reloaded";
2494	};	3086	};
2495		3087
2496	our $RELOAD_WATCHER; # used only during reload	3088	our $RELOAD_WATCHER; # used only during reload
2497		3089
		3090	sub reload_perl() {
		3091	# doing reload synchronously and two reloads happen back-to-back,
		3092	# coro crashes during coro_state_free->destroy here.
		3093
		3094	$RELOAD_WATCHER ||= Event->timer (
		3095	reentrant => 0,
		3096	after => 0,
		3097	data => WF_AUTOCANCEL,
		3098	cb => sub {
		3099	do_reload_perl;
		3100	undef $RELOAD_WATCHER;
		3101	},
		3102	);
		3103	}
		3104
2498	register_command "reload" => sub {	3105	register_command "reload" => sub {
2499	my ($who, $arg) = @_;	3106	my ($who, $arg) = @_;
2500		3107
2501	if ($who->flag (FLAG_WIZ)) {	3108	if ($who->flag (FLAG_WIZ)) {
2502	$who->message ("reloading server.");	3109	$who->message ("reloading server.");
2503		3110	async { reload_perl };
2504	# doing reload synchronously and two reloads happen back-to-back,
2505	# coro crashes during coro_state_free->destroy here.
2506
2507	$RELOAD_WATCHER ||= Event->timer (
2508	reentrant => 0,
2509	after => 0,
2510	data => WF_AUTOCANCEL,
2511	cb => sub {
2512	reload;
2513	undef $RELOAD_WATCHER;
2514	},
2515	);
2516	}	3111	}
2517	};	3112	};
2518		3113
2519	unshift @INC, $LIBDIR;	3114	unshift @INC, $LIBDIR;
2520		3115
2521	my $bug_warning = 0;	3116	my $bug_warning = 0;
2522		3117
		3118	our @WAIT_FOR_TICK;
		3119	our @WAIT_FOR_TICK_BEGIN;
		3120
		3121	sub wait_for_tick {
		3122	return unless $TICK_WATCHER->is_active;
		3123	return if $Coro::current == $Coro::main;
		3124
		3125	my $signal = new Coro::Signal;
		3126	push @WAIT_FOR_TICK, $signal;
		3127	$signal->wait;
		3128	}
		3129
		3130	sub wait_for_tick_begin {
		3131	return unless $TICK_WATCHER->is_active;
		3132	return if $Coro::current == $Coro::main;
		3133
		3134	my $signal = new Coro::Signal;
		3135	push @WAIT_FOR_TICK_BEGIN, $signal;
		3136	$signal->wait;
		3137	}
		3138
		3139	my $min = 1e6;#d#
		3140	my $avg = 10;
2523	$TICK_WATCHER = Event->timer (	3141	$TICK_WATCHER = Event->timer (
2524	reentrant => 0,	3142	reentrant => 0,
2525	parked => 1,	3143	parked => 1,
2526	prio => 0,	3144	prio => 0,
2527	at => $NEXT_TICK || $TICK,	3145	at => $NEXT_TICK || $TICK,
…		…
2531	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3149	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2532	unless ++$bug_warning > 10;	3150	unless ++$bug_warning > 10;
2533	return;	3151	return;
2534	}	3152	}
2535		3153
2536	$NOW = Event::time;	3154	$NOW = $tick_start = Event::time;
2537		3155
2538	cf::server_tick; # one server iteration	3156	cf::server_tick; # one server iteration
		3157
		3158	0 && sync_job {#d#
		3159	for(1..10) {
		3160	my $t = Event::time;
		3161	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3162	or die;
		3163
		3164	$map->width (50);
		3165	$map->height (50);
		3166	$map->alloc;
		3167	$map->_load_objects ("/tmp/x.map", 1);
		3168	my $t = Event::time - $t;
		3169
		3170	#next unless $t < 0.0013;#d#
		3171	if ($t < $min) {
		3172	$min = $t;
		3173	}
		3174	$avg = $avg * 0.99 + $t * 0.01;
		3175	}
		3176	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3177	exit 0;
		3178	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3179	};
		3180
2539	$RUNTIME += $TICK;	3181	$RUNTIME += $TICK;
2540	$NEXT_TICK += $TICK;	3182	$NEXT_TICK += $TICK;
2541		3183
2542	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3184	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2543	$NEXT_RUNTIME_WRITE = $NOW + 10;	3185	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2545	write_runtime	3187	write_runtime
2546	or warn "ERROR: unable to write runtime file: $!";	3188	or warn "ERROR: unable to write runtime file: $!";
2547	};	3189	};
2548	}	3190	}
2549		3191
2550	$WAIT_FOR_TICK->broadcast;
2551	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2552
2553	# my $AFTER = Event::time;	3192	# my $AFTER = Event::time;
2554	# warn $AFTER - $NOW;#d#	3193	# warn $AFTER - $NOW;#d#
2555		3194
		3195	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3196	$sig->send;
		3197	}
		3198	while (my $sig = shift @WAIT_FOR_TICK) {
		3199	$sig->send;
		3200	}
		3201
		3202	$NOW = Event::time;
		3203
2556	# if we are delayed by four ticks or more, skip them all	3204	# if we are delayed by four ticks or more, skip them all
2557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3205	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2558		3206
2559	$TICK_WATCHER->at ($NEXT_TICK);	3207	$TICK_WATCHER->at ($NEXT_TICK);
2560	$TICK_WATCHER->start;	3208	$TICK_WATCHER->start;
		3209
		3210	$LOAD = ($NOW - $tick_start) / $TICK;
		3211	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3212
		3213	_post_tick;
		3214
		3215
2561	},	3216	},
2562	);	3217	);
2563		3218
2564	{	3219	{
2565	BDB::max_poll_time $TICK * 0.1;	3220	BDB::max_poll_time $TICK * 0.1;
…		…
2593		3248
2594	cf::sync_job {	3249	cf::sync_job {
2595	eval {	3250	eval {
2596	BDB::db_env_open	3251	BDB::db_env_open
2597	$DB_ENV,	3252	$DB_ENV,
2598	$BDB_ENV_DIR,	3253	$BDBDIR,
2599	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3254	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2600	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3255	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2601	0666;	3256	0666;
2602		3257
2603	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3258	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2604		3259
2605	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3260	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2606	$DB_ENV->set_lk_detect;	3261	$DB_ENV->set_lk_detect;
2607	};	3262	};
2608		3263
…		…
2624	prio => 6,	3279	prio => 6,
2625	cb => \&IO::AIO::poll_cb,	3280	cb => \&IO::AIO::poll_cb,
2626	);	3281	);
2627	}	3282	}
2628		3283
		3284	my $_log_backtrace;
		3285
		3286	sub _log_backtrace {
		3287	my ($msg, @addr) = @_;
		3288
		3289	$msg =~ s/\n//;
		3290
		3291	# limit the # of concurrent backtraces
		3292	if ($_log_backtrace < 2) {
		3293	++$_log_backtrace;
		3294	async {
		3295	my @bt = fork_call {
		3296	@addr = map { sprintf "%x", $_ } @addr;
		3297	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3298	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3299	or die "addr2line: $!";
		3300
		3301	my @funcs;
		3302	my @res = <$fh>;
		3303	chomp for @res;
		3304	while (@res) {
		3305	my ($func, $line) = splice @res, 0, 2, ();
		3306	push @funcs, "[$func] $line";
		3307	}
		3308
		3309	@funcs
		3310	};
		3311
		3312	LOG llevInfo, "[ABT] $msg\n";
		3313	LOG llevInfo, "[ABT] $_\n" for @bt;
		3314	--$_log_backtrace;
		3315	};
		3316	} else {
		3317	LOG llevInfo, "[ABT] $msg\n";
		3318	LOG llevInfo, "[ABT] [suppressed]\n";
		3319	}
		3320	}
		3321
		3322	# load additional modules
		3323	use cf::pod;
		3324
2629	END { cf::emergency_save }	3325	END { cf::emergency_save }
2630		3326
2631	1	3327	1
2632		3328

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