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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 1.299 by root, Sun Jul 8 14:56:05 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;
28		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		40
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		42
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
37		45
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
40	our %COMMAND = ();	50	our %COMMAND = ();
41	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
42		52
43	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
47		58
48	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
49	our @EVENT;	60	our @EVENT;
50	our $LIBDIR = datadir . "/ext";
51		61
52	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
53	our $TICK_WATCHER;	75	our $TICK_WATCHER;
54	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
56	our $NEXT_TICK;	78	our $NEXT_TICK;
57	our $NOW;	79	our $NOW;
…		…
66	our $RUNTIME;	88	our $RUNTIME;
67		89
68	our %PLAYER; # all users	90	our %PLAYER; # all users
69	our %MAP; # all maps	91	our %MAP; # all maps
70	our $LINK_MAP; # the special {link} map, which is always available	92	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		93
77	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
79		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
80	binmode STDOUT;	101	binmode STDOUT;
81	binmode STDERR;	102	binmode STDERR;
82		103
83	# read virtual server time, if available	104	# read virtual server time, if available
84	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
85	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
86	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
87	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
88	}	109	}
89		110
90	mkdir cf::localdir;	111	mkdir $_
91	mkdir cf::localdir . "/" . cf::playerdir;	112	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		113
97	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
98		115
99	sub cf::map::normalise;	116	sub cf::map::normalise;
100		117
…		…
111	=item $cf::RUNTIME	128	=item $cf::RUNTIME
112		129
113	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
114	every server tick.	131	every server tick.
115		132
116	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
117		136
118	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
119	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
120		141
121	=item $cf::NOW	142	=item $cf::NOW
122		143
123	The time of the last (current) server tick.	144	The time of the last (current) server tick.
124		145
125	=item $cf::TICK	146	=item $cf::TICK
126		147
127	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
128		159
129	=item %cf::CFG	160	=item %cf::CFG
130		161
131	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
132	from wherever your confdir points to.	163	from wherever your confdir points to.
133		164
134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
135		166
136	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
137	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	168	returns directly I<after> the tick processing (and consequently, can only wake one process
138	processing has been done. Call C<< ->wait >> on them to maximise the	169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
139	window of cpu time available, or simply to synchronise to the server tick.
140		170
141	=back	171	=back
142		172
143	=cut	173	=cut
144		174
145	BEGIN {	175	BEGIN {
146	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
147	my $msg = join "", @_;	177	my $msg = join "", @_;
148	utf8::encode $msg;
149		178
150	$msg .= "\n"	179	$msg .= "\n"
151	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
152		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
153	LOG llevError, $msg;	185	LOG llevError, $msg;
154	};	186	};
155	}	187	}
156		188
157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
159	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
160	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
161	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
162	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
163		196
164	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
165	# within the Safe compartment.	198	# within the Safe compartment.
166	for my $pkg (qw(	199	for my $pkg (qw(
167	cf::global cf::attachable	200	cf::global cf::attachable
…		…
175	}	208	}
176		209
177	$Event::DIED = sub {	210	$Event::DIED = sub {
178	warn "error in event callback: @_";	211	warn "error in event callback: @_";
179	};	212	};
		213
		214	#############################################################################
180		215
181	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
182		217
183	=over 4	218	=over 4
184		219
…		…
203	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
204	$d	239	$d
205	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
206	}	241	}
207		242
208	use JSON::Syck (); # TODO# replace by JSON::PC once working
209
210	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
211		244
212	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
213		246
214	=cut
215
216	sub from_json($) {
217	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
218	JSON::Syck::Load $_[0]
219	}
220
221	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
222		248
223	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
224		250
225	=cut	251	=cut
226		252
227	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
228	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
229	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
230	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
231		257
232	=item cf::lock_wait $string	258	=item cf::lock_wait $string
233		259
234	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
235		261
…		…
241	returned.	267	returned.
242		268
243	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
244	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
245		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
246	=cut	276	=cut
247		277
248	our %LOCK;	278	our %LOCK;
249		279
250	sub lock_wait($) {	280	sub lock_wait($) {
…		…
267		297
268	Coro::guard {	298	Coro::guard {
269	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
270	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
271	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
272	}	308	}
273		309
274	sub freeze_mainloop {	310	sub freeze_mainloop {
275	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
276		312
…		…
291		327
292	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
293		329
294	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
295		331
296	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
297	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
298	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
299		336
300	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
301	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
302	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
303	fast or be very important.	340	fast or be very important.
…		…
306		343
307	sub sync_job(&) {	344	sub sync_job(&) {
308	my ($job) = @_;	345	my ($job) = @_;
309		346
310	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
311	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
312	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
313		352
314	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
315	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
326		365
327	while ($busy) {	366	while ($busy) {
328	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
329	}	368	}
330		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
331	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
332	} else {	378	} else {
333	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
334		380
335	$job->()	381	$job->()
…		…
354	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
355		401
356	$coro	402	$coro
357	}	403	}
358		404
359	sub write_runtime {	405	=item fork_call { }, $args
360	my $guard = cf::lock_acquire "write_runtime";
361		406
362	my $runtime = cf::localdir . "/runtime";	407	Executes the given code block with the given arguments in a seperate
		408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
363		411
364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
365	or return;
366		413
367	my $value = $cf::RUNTIME + 90 + 10;	414	sub _store_scalar {
368	# 10 is the runtime save interval, for a monotonic clock	415	open my $fh, ">", \my $buf
369	# 60 allows for the watchdog to kill the server.	416	or die "fork_call: cannot open fh-to-buf in child : $!";
370		417	Storable::store_fd $_[0], $fh;
371	(aio_write $fh, 0, (length $value), $value, 0) <= 0
372	and return;
373
374	# always fsync - this file is important
375	aio_fsync $fh
376	and return;
377
378	close $fh	418	close $fh;
379	or return;
380		419
381	aio_rename "$runtime~", $runtime	420	$buf
382	and return;	421	}
383		422
		423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
384	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
		581	}
		582
		583	=item cf::datalog type => key => value, ...
		584
		585	Log a datalog packet of the given type with the given key-value pairs.
		586
		587	=cut
		588
		589	sub datalog($@) {
		590	my ($type, %kv) = @_;
		591	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
385	}	592	}
386		593
387	=back	594	=back
388		595
389	=cut	596	=cut
…		…
396	attach callbacks/event handlers (a collection of which is called an "attachment")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
398		605
399	In the following description, CLASS can be any of C<global>, C<object>	606	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	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	608	Crossfire TRT).
402		609
403	=over 4	610	=over 4
404		611
405	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
406		613
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	776	$registry = $CB_TYPE[$object_type] ||= [];
570		777
571	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		782
576	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	784	my $pkg = shift @arg;
578		785
579	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
609	}	816	}
610		817
611	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
612	} else {	819	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	821	}
615		822
616	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
617	}	824	}
618		825
…		…
620	if (ref $_[0]) {	827	if (ref $_[0]) {
621	_object_attach @_;	828	_object_attach @_;
622	} else {	829	} else {
623	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
624	}	831	}
		832	_recalc_want;
625	};	833	};
626		834
627	# all those should be optimised	835	# all those should be optimised
628	sub cf::attachable::detach {	836	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
633	reattach ($obj);	841	reattach ($obj);
634	} else {	842	} else {
635	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
636	}	844	}
		845	_recalc_want;
637	};	846	};
638		847
639	sub cf::attachable::attached {	848	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
641		850
…		…
814	or return;	1023	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1025	}
817		1026
818	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1028	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1029	return ($data, $av);
821	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
822		1037
823	#############################################################################	1038	#############################################################################
824	# command handling &c	1039	# command handling &c
825		1040
826	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1055	}
841		1056
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1058
844	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
845		1064
846	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
847	called.	1066	called.
848		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
849	=cut	1079	=cut
850		1080
851	sub register_extcmd {	1081	sub register_extcmd {
852	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
853		1083
854	$EXTCMD{$name} = $cb;	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
855	}	1091	}
856		1092
857	cf::player->attach (	1093	cf::player->attach (
858	on_command => sub {	1094	on_command => sub {
859	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
868	cf::override;	1104	cf::override;
869	},	1105	},
870	on_extcmd => sub {	1106	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
872		1108
873	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1110
875	if (ref $msg) {	1111	if (ref $msg) {
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
877	if (my %reply = $cb->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
878	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
884		1120
885	cf::override;	1121	cf::override;
886	},	1122	},
887	);	1123	);
888		1124
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 {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
924	for my $ext (<$LIBDIR/*.ext>) {	1129	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1130	next unless -r $path;
926	eval {	1131
927	load_extension $ext;	1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
928	1	1189	}
929	} or warn "$ext not loaded: $@";	1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
930	}	1195	};
931	}	1196	}
932		1197
933	#############################################################################	1198	#############################################################################
934		1199
		1200	=back
		1201
935	=head2 CORE EXTENSIONS	1202	=head2 CORE EXTENSIONS
936		1203
937	Functions and methods that extend core crossfire objects.	1204	Functions and methods that extend core crossfire objects.
938		1205
939	=cut	1206	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1218	Returns the given player object, loading it if necessary (might block).
952		1219
953	=cut	1220	=cut
954		1221
955	sub playerdir($) {	1222	sub playerdir($) {
956	cf::localdir	1223	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1224	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1225	}
962		1226
963	sub path($) {	1227	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1228	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965		1229
966	(playerdir $login) . "/$login.pl"	1230	(playerdir $login) . "/playerdata"
967	}	1231	}
968		1232
969	sub find_active($) {	1233	sub find_active($) {
970	$cf::PLAYER{$_[0]}	1234	$cf::PLAYER{$_[0]}
971	and $cf::PLAYER{$_[0]}->active	1235	and $cf::PLAYER{$_[0]}->active
…		…
984	my $login = $_[0];	1248	my $login = $_[0];
985		1249
986	my $guard = cf::lock_acquire "user_find:$login";	1250	my $guard = cf::lock_acquire "user_find:$login";
987		1251
988	$cf::PLAYER{$_[0]} || do {	1252	$cf::PLAYER{$_[0]} || do {
		1253	# rename old playerfiles to new ones
		1254	#TODO: remove when no longer required
		1255	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1256	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1257	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1258	aio_unlink +(playerdir $login) . "/$login.pl";
		1259
989	my $pl = load_pl path $login	1260	my $pl = load_pl path $login
990	or return;	1261	or return;
991	$cf::PLAYER{$login} = $pl	1262	$cf::PLAYER{$login} = $pl
992	}	1263	}
993	}	1264	}
…		…
1077	while and may block, so not sync_job-capable, ever.	1348	while and may block, so not sync_job-capable, ever.
1078		1349
1079	=cut	1350	=cut
1080		1351
1081	sub list_logins {	1352	sub list_logins {
1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1353	my $dirs = aio_readdir $PLAYERDIR
1083	or return [];	1354	or return [];
1084		1355
1085	my @logins;	1356	my @logins;
1086		1357
1087	for my $login (@$dirs) {	1358	for my $login (@$dirs) {
…		…
1122	}	1393	}
1123		1394
1124	\@paths	1395	\@paths
1125	}	1396	}
1126		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&amp;/g;
		1409	s/(?<![BIUGH])</&lt;/g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male|female> tags
		1419	|| s{G<([^>|]*)\|([^>]*)>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	|| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	$_
		1441	}
		1442
		1443	sub hintmode {
		1444	$_[0]{hintmode} = $_[1] if @_ > 1;
		1445	$_[0]{hintmode}
		1446	}
		1447
1127	=item $player->ext_reply ($msgid, $msgtype, %msg)	1448	=item $player->ext_reply ($msgid, %msg)
1128		1449
1129	Sends an ext reply to the player.	1450	Sends an ext reply to the player.
1130		1451
1131	=cut	1452	=cut
1132		1453
1133	sub ext_reply($$$%) {	1454	sub ext_reply($$%) {
1134	my ($self, $id, %msg) = @_;	1455	my ($self, $id, %msg) = @_;
1135		1456
1136	$msg{msgid} = $id;	1457	$msg{msgid} = $id;
1137		1458	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1138	$self->send ("ext " . cf::to_json \%msg);
1139	}	1459	}
1140		1460
1141	package cf;	1461	=item $player->ext_event ($type, %msg)
		1462
		1463	Sends an ext event to the client.
		1464
		1465	=cut
		1466
		1467	sub ext_event($$%) {
		1468	my ($self, $type, %msg) = @_;
		1469
		1470	$self->ns->ext_event ($type, %msg);
		1471	}
		1472
		1473	=head3 cf::region
		1474
		1475	=over 4
		1476
		1477	=cut
		1478
		1479	package cf::region;
		1480
		1481	=item cf::region::find_by_path $path
		1482
		1483	Tries to decuce the likely region for a map knowing only its path.
		1484
		1485	=cut
		1486
		1487	sub find_by_path($) {
		1488	my ($path) = @_;
		1489
		1490	my ($match, $specificity);
		1491
		1492	for my $region (list) {
		1493	if ($region->match && $path =~ $region->match) {
		1494	($match, $specificity) = ($region, $region->specificity)
		1495	if $region->specificity > $specificity;
		1496	}
		1497	}
		1498
		1499	$match
		1500	}
1142		1501
1143	=back	1502	=back
1144
1145		1503
1146	=head3 cf::map	1504	=head3 cf::map
1147		1505
1148	=over 4	1506	=over 4
1149		1507
…		…
1204	my ($self, $merge) = @_;	1562	my ($self, $merge) = @_;
1205		1563
1206	# we have to keep some variables in memory intact	1564	# we have to keep some variables in memory intact
1207	local $self->{path};	1565	local $self->{path};
1208	local $self->{load_path};	1566	local $self->{load_path};
1209	local $self->{deny_save};
1210	local $self->{deny_reset};
1211		1567
1212	$self->SUPER::thawer_merge ($merge);	1568	$self->SUPER::thawer_merge ($merge);
1213	}	1569	}
1214		1570
1215	sub normalise {	1571	sub normalise {
…		…
1287		1643
1288	# the original (read-only) location	1644	# the original (read-only) location
1289	sub load_path {	1645	sub load_path {
1290	my ($self) = @_;	1646	my ($self) = @_;
1291		1647
1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1648	"$MAPDIR/$self->{path}.map"
1293	}	1649	}
1294		1650
1295	# the temporary/swap location	1651	# the temporary/swap location
1296	sub save_path {	1652	sub save_path {
1297	my ($self) = @_;	1653	my ($self) = @_;
1298		1654
1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1655	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1656	"$TMPDIR/$path.map"
1301	}	1657	}
1302		1658
1303	# the unique path, undef == no special unique path	1659	# the unique path, undef == no special unique path
1304	sub uniq_path {	1660	sub uniq_path {
1305	my ($self) = @_;	1661	my ($self) = @_;
1306		1662
1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1663	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1664	"$UNIQUEDIR/$path"
1309	}	1665	}
1310		1666
1311	# and all this just because we cannot iterate over	1667	# and all this just because we cannot iterate over
1312	# all maps in C++...	1668	# all maps in C++...
1313	sub change_all_map_light {	1669	sub change_all_map_light {
1314	my ($change) = @_;	1670	my ($change) = @_;
1315		1671
1316	$_->change_map_light ($change)	1672	$_->change_map_light ($change)
1317	for grep $_->outdoor, values %cf::MAP;	1673	for grep $_->outdoor, values %cf::MAP;
		1674	}
		1675
		1676	sub decay_objects {
		1677	my ($self) = @_;
		1678
		1679	return if $self->{deny_reset};
		1680
		1681	$self->do_decay_objects;
1318	}	1682	}
1319		1683
1320	sub unlink_save {	1684	sub unlink_save {
1321	my ($self) = @_;	1685	my ($self) = @_;
1322		1686
…		…
1380	$self->load_header_orig	1744	$self->load_header_orig
1381	or return;	1745	or return;
1382	$self->prepare_orig;	1746	$self->prepare_orig;
1383	}	1747	}
1384		1748
		1749	$self->{deny_reset} = 1
		1750	if $self->no_reset;
		1751
		1752	$self->default_region (cf::region::find_by_path $self->{path})
		1753	unless $self->default_region;
		1754
1385	1	1755	1
1386	}	1756	}
1387		1757
1388	sub find;	1758	sub find;
1389	sub find {	1759	sub find {
…		…
1401	$map->{last_save} = $cf::RUNTIME;	1771	$map->{last_save} = $cf::RUNTIME;
1402		1772
1403	$map->load_header	1773	$map->load_header
1404	or return;	1774	or return;
1405		1775
1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1776	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1407	# doing this can freeze the server in a sync job, obviously	1777	# doing this can freeze the server in a sync job, obviously
1408	#$cf::WAIT_FOR_TICK->wait;	1778	#$cf::WAIT_FOR_TICK->wait;
1409	$map->reset;	1779	$map->reset;
1410	undef $guard;	1780	undef $guard;
1411	return find $path;	1781	return find $path;
…		…
1422	my ($self) = @_;	1792	my ($self) = @_;
1423		1793
1424	local $self->{deny_reset} = 1; # loading can take a long time	1794	local $self->{deny_reset} = 1; # loading can take a long time
1425		1795
1426	my $path = $self->{path};	1796	my $path = $self->{path};
		1797
		1798	{
1427	my $guard = cf::lock_acquire "map_load:$path";	1799	my $guard = cf::lock_acquire "map_load:$path";
1428		1800
1429	return if $self->in_memory != cf::MAP_SWAPPED;	1801	return if $self->in_memory != cf::MAP_SWAPPED;
1430		1802
1431	$self->in_memory (cf::MAP_LOADING);	1803	$self->in_memory (cf::MAP_LOADING);
1432		1804
1433	$self->alloc;	1805	$self->alloc;
1434		1806
1435	$self->pre_load;	1807	$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;	1808	Coro::cede;
1461	$self->set_darkness_map;	1809
		1810	$self->_load_objects ($self->{load_path}, 1)
		1811	or return;
		1812
		1813	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1814	if delete $self->{load_original};
		1815
		1816	if (my $uniq = $self->uniq_path) {
		1817	utf8::encode $uniq;
		1818	if (aio_open $uniq, O_RDONLY, 0) {
		1819	$self->clear_unique_items;
		1820	$self->_load_objects ($uniq, 0);
		1821	}
		1822	}
		1823
		1824	Coro::cede;
		1825	# now do the right thing for maps
		1826	$self->link_multipart_objects;
1462	$self->difficulty ($self->estimate_difficulty)	1827	$self->difficulty ($self->estimate_difficulty)
1463	unless $self->difficulty;	1828	unless $self->difficulty;
1464	Coro::cede;	1829	Coro::cede;
		1830
		1831	unless ($self->{deny_activate}) {
		1832	$self->decay_objects;
		1833	$self->fix_auto_apply;
		1834	$self->update_buttons;
		1835	Coro::cede;
		1836	$self->set_darkness_map;
		1837	Coro::cede;
1465	$self->activate;	1838	$self->activate;
		1839	}
		1840
		1841	$self->in_memory (cf::MAP_IN_MEMORY);
1466	}	1842	}
1467		1843
1468	$self->post_load;	1844	$self->post_load;
1469
1470	$self->in_memory (cf::MAP_IN_MEMORY);
1471	}	1845	}
1472		1846
1473	sub customise_for {	1847	sub customise_for {
1474	my ($self, $ob) = @_;	1848	my ($self, $ob) = @_;
1475		1849
1476	return find "~" . $ob->name . "/" . $self->{path}	1850	return find "~" . $ob->name . "/" . $self->{path}
1477	if $self->per_player;	1851	if $self->per_player;
		1852
		1853	# return find "?party/" . $ob->name . "/" . $self->{path}
		1854	# if $self->per_party;
1478		1855
1479	$self	1856	$self
1480	}	1857	}
1481		1858
1482	# find and load all maps in the 3x3 area around a map	1859	# find and load all maps in the 3x3 area around a map
…		…
1593		1970
1594	sub reset_at {	1971	sub reset_at {
1595	my ($self) = @_;	1972	my ($self) = @_;
1596		1973
1597	# TODO: safety, remove and allow resettable per-player maps	1974	# 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};	1975	return 1e99 if $self->{deny_reset};
1600		1976
1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1977	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1978	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1603		1979
…		…
1614	my ($self) = @_;	1990	my ($self) = @_;
1615		1991
1616	my $lock = cf::lock_acquire "map_data:$self->{path}";	1992	my $lock = cf::lock_acquire "map_data:$self->{path}";
1617		1993
1618	return if $self->players;	1994	return if $self->players;
1619	return if $self->isa ("ext::map_per_player");#d#
1620		1995
1621	warn "resetting map ", $self->path;#d#	1996	warn "resetting map ", $self->path;
1622		1997
1623	$self->in_memory (cf::MAP_SWAPPED);	1998	$self->in_memory (cf::MAP_SWAPPED);
1624		1999
1625	# need to save uniques path	2000	# need to save uniques path
1626	unless ($self->{deny_save}) {	2001	unless ($self->{deny_save}) {
…		…
1658	$cf::MAP{$self->path} = $self;	2033	$cf::MAP{$self->path} = $self;
1659		2034
1660	$self->reset; # polite request, might not happen	2035	$self->reset; # polite request, might not happen
1661	}	2036	}
1662		2037
		2038	=item $maps = cf::map::tmp_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	maps. May block.
		2042
		2043	=cut
		2044
		2045	sub tmp_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise $_
		2051	: ()
		2052	} @{ aio_readdir $TMPDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item $maps = cf::map::random_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	random maps. May block.
		2060
		2061	=cut
		2062
		2063	sub random_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise "?random/$_"
		2069	: ()
		2070	} @{ aio_readdir $RANDOMDIR or [] }
		2071	]
		2072	}
		2073
1663	=item cf::map::unique_maps	2074	=item cf::map::unique_maps
1664		2075
1665	Returns an arrayref of paths of all shared maps that have	2076	Returns an arrayref of paths of all shared maps that have
1666	instantiated unique items. May block.	2077	instantiated unique items. May block.
1667		2078
1668	=cut	2079	=cut
1669		2080
1670	sub unique_maps() {	2081	sub unique_maps() {
1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2082	[
1672	or return;	2083	map {
1673
1674	my @paths;
1675
1676	for (@$files) {
1677	utf8::decode $_;	2084	utf8::decode $_;
1678	next if /\.pst$/;	2085	/\.map$/
1679	next unless /^$PATH_SEP/o;	2086	? normalise $_
1680		2087	: ()
1681	push @paths, cf::map::normalise $_;	2088	} @{ aio_readdir $UNIQUEDIR or [] }
1682	}	2089	]
1683
1684	\@paths
1685	}	2090	}
1686		2091
1687	package cf;	2092	package cf;
1688		2093
1689	=back	2094	=back
…		…
1735		2140
1736	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2141	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1737		2142
1738	if ($self->{record_replies}) {	2143	if ($self->{record_replies}) {
1739	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2144	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2145
1740	} else {	2146	} else {
		2147	my $pl = $self->contr;
		2148
		2149	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2150	my $diag = $pl->{npc_dialog};
		2151	$diag->{pl}->ext_reply (
		2152	$diag->{id},
		2153	msgtype => "reply",
		2154	msg => $diag->{pl}->expand_cfpod ($msg),
		2155	add_topics => []
		2156	);
		2157
		2158	} else {
1741	$msg = $npc->name . " says: $msg" if $npc;	2159	$msg = $npc->name . " says: $msg" if $npc;
1742	$self->message ($msg, $flags);	2160	$self->message ($msg, $flags);
		2161	}
1743	}	2162	}
1744	}	2163	}
1745		2164
1746	=item $player_object->may ("access")	2165	=item $player_object->may ("access")
1747		2166
…		…
1795	$self->deactivate_recursive;	2214	$self->deactivate_recursive;
1796		2215
1797	return if UNIVERSAL::isa $self->map, "ext::map_link";	2216	return if UNIVERSAL::isa $self->map, "ext::map_link";
1798		2217
1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2218	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1800	if $self->map;	2219	if $self->map && $self->map->{path} ne "{link}";
1801		2220
1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2221	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1803	}	2222	}
1804		2223
1805	sub cf::object::player::leave_link {	2224	sub cf::object::player::leave_link {
1806	my ($self, $map, $x, $y) = @_;	2225	my ($self, $map, $x, $y) = @_;
		2226
		2227	return unless $self->contr->active;
1807		2228
1808	my $link_pos = delete $self->{_link_pos};	2229	my $link_pos = delete $self->{_link_pos};
1809		2230
1810	unless ($map) {	2231	unless ($map) {
1811	# restore original map position	2232	# restore original map position
…		…
1834		2255
1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2256	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1836	$self->enter_map ($map, $x, $y);	2257	$self->enter_map ($map, $x, $y);
1837	}	2258	}
1838		2259
1839	cf::player->attach (
1840	on_logout => sub {
1841	my ($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)	2260	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1872		2261
		2262	Moves the player to the given map-path and coordinates by first freezing
		2263	her, loading and preparing them map, calling the provided $check callback
		2264	that has to return the map if sucecssful, and then unfreezes the player on
		2265	the new (success) or old (failed) map position.
		2266
1873	=cut	2267	=cut
		2268
		2269	our $GOTOGEN;
1874		2270
1875	sub cf::object::player::goto {	2271	sub cf::object::player::goto {
1876	my ($self, $path, $x, $y) = @_;	2272	my ($self, $path, $x, $y, $check) = @_;
		2273
		2274	# do generation counting so two concurrent goto's will be executed in-order
		2275	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1877		2276
1878	$self->enter_link;	2277	$self->enter_link;
1879		2278
1880	(async {	2279	(async {
1881	my $map = eval {	2280	my $map = eval {
1882	my $map = cf::map::find $path;	2281	my $map = cf::map::find $path;
		2282
		2283	if ($map) {
1883	$map = $map->customise_for ($self) if $map;	2284	$map = $map->customise_for ($self);
		2285	$map = $check->($map) if $check && $map;
		2286	} else {
		2287	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2288	}
		2289
1884	$map	2290	$map
		2291	};
		2292
		2293	if ($@) {
		2294	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2295	LOG llevError | logBacktrace, Carp::longmess $@;
1885	} or	2296	}
1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1887		2297
		2298	if ($gen == $self->{_goto_generation}) {
		2299	delete $self->{_goto_generation};
1888	$self->leave_link ($map, $x, $y);	2300	$self->leave_link ($map, $x, $y);
		2301	}
1889	})->prio (1);	2302	})->prio (1);
1890	}	2303	}
1891		2304
1892	=item $player_object->enter_exit ($exit_object)	2305	=item $player_object->enter_exit ($exit_object)
1893		2306
…		…
1932		2345
1933	$rmp->{random_seed} ||= $exit->random_seed;	2346	$rmp->{random_seed} ||= $exit->random_seed;
1934		2347
1935	my $data = cf::to_json $rmp;	2348	my $data = cf::to_json $rmp;
1936	my $md5 = Digest::MD5::md5_hex $data;	2349	my $md5 = Digest::MD5::md5_hex $data;
1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2350	my $meta = "$RANDOMDIR/$md5.meta";
1938		2351
1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2352	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1940	aio_write $fh, 0, (length $data), $data, 0;	2353	aio_write $fh, 0, (length $data), $data, 0;
1941	undef $fh;	2354	undef $fh;
1942	aio_rename "$meta~", $meta;	2355	aio_rename "$meta~", $meta;
…		…
1951		2364
1952	return unless $self->type == cf::PLAYER;	2365	return unless $self->type == cf::PLAYER;
1953		2366
1954	if ($exit->slaying eq "/!") {	2367	if ($exit->slaying eq "/!") {
1955	#TODO: this should de-fi-ni-te-ly not be a sync-job	2368	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2369	# the problem is that $exit might not survive long enough
		2370	# so it needs to be done right now, right here
1956	cf::sync_job { prepare_random_map $exit };	2371	cf::sync_job { prepare_random_map $exit };
1957	}	2372	}
1958		2373
1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2374	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960	my $hp = $exit->stats->hp;	2375	my $hp = $exit->stats->hp;
1961	my $sp = $exit->stats->sp;	2376	my $sp = $exit->stats->sp;
1962		2377
1963	$self->enter_link;	2378	$self->enter_link;
		2379
		2380	# if exit is damned, update players death & WoR home-position
		2381	$self->contr->savebed ($slaying, $hp, $sp)
		2382	if $exit->flag (FLAG_DAMNED);
1964		2383
1965	(async {	2384	(async {
1966	$self->deactivate_recursive; # just to be sure	2385	$self->deactivate_recursive; # just to be sure
1967	unless (eval {	2386	unless (eval {
1968	$self->goto ($slaying, $hp, $sp);	2387	$self->goto ($slaying, $hp, $sp);
1969		2388
1970	1;	2389	1;
1971	}) {	2390	}) {
1972	$self->message ("Something went wrong deep within the crossfire server. "	2391	$self->message ("Something went wrong deep within the crossfire server. "
1973	. "I'll try to bring you back to the map you were before. "	2392	. "I'll try to bring you back to the map you were before. "
1974	. "Please report this to the dungeon master!",	2393	. "Please report this to the dungeon master!",
1975	cf::NDI_UNIQUE | cf::NDI_RED);	2394	cf::NDI_UNIQUE | cf::NDI_RED);
1976		2395
1977	warn "ERROR in enter_exit: $@";	2396	warn "ERROR in enter_exit: $@";
1978	$self->leave_link;	2397	$self->leave_link;
1979	}	2398	}
1980	})->prio (1);	2399	})->prio (1);
…		…
1993		2412
1994	sub cf::client::send_drawinfo {	2413	sub cf::client::send_drawinfo {
1995	my ($self, $text, $flags) = @_;	2414	my ($self, $text, $flags) = @_;
1996		2415
1997	utf8::encode $text;	2416	utf8::encode $text;
1998	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2417	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1999	}	2418	}
2000		2419
		2420	=item $client->send_msg ($color, $type, $msg, [extra...])
		2421
		2422	Send a drawinfo or msg packet to the client, formatting the msg for the
		2423	client if neccessary. C<$type> should be a string identifying the type of
		2424	the message, with C<log> being the default. If C<$color> is negative, suppress
		2425	the message unless the client supports the msg packet.
		2426
		2427	=cut
		2428
		2429	sub cf::client::send_msg {
		2430	my ($self, $color, $type, $msg, @extra) = @_;
		2431
		2432	$msg = $self->pl->expand_cfpod ($msg);
		2433
		2434	return unless @extra || length $msg;
		2435
		2436	if ($self->can_msg) {
		2437	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2438	} else {
		2439	# replace some tags by gcfclient-compatible ones
		2440	for ($msg) {
		2441	1 while
		2442	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2443	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2444	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2445	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2446	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2447	}
		2448
		2449	if ($color >= 0) {
		2450	if (0 && $msg =~ /\[/) {
		2451	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2452	} else {
		2453	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2454	$self->send_packet ("drawinfo $color $msg")
		2455	}
		2456	}
		2457	}
		2458	}
		2459
		2460	=item $client->ext_event ($type, %msg)
		2461
		2462	Sends an ext event to the client.
		2463
		2464	=cut
		2465
		2466	sub cf::client::ext_event($$%) {
		2467	my ($self, $type, %msg) = @_;
		2468
		2469	$msg{msgtype} = "event_$type";
		2470	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2471	}
2001		2472
2002	=item $success = $client->query ($flags, "text", \&cb)	2473	=item $success = $client->query ($flags, "text", \&cb)
2003		2474
2004	Queues a query to the client, calling the given callback with	2475	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>,	2476	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>.	2477	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2007		2478
2008	Queries can fail, so check the return code. Or don't, as queries will become	2479	Queries can fail, so check the return code. Or don't, as queries will
2009	reliable at some point in the future.	2480	become reliable at some point in the future.
2010		2481
2011	=cut	2482	=cut
2012		2483
2013	sub cf::client::query {	2484	sub cf::client::query {
2014	my ($self, $flags, $text, $cb) = @_;	2485	my ($self, $flags, $text, $cb) = @_;
…		…
2022	utf8::encode $text;	2493	utf8::encode $text;
2023	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2494	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2024		2495
2025	$self->send_packet ($self->{query_queue}[0][0])	2496	$self->send_packet ($self->{query_queue}[0][0])
2026	if @{ $self->{query_queue} } == 1;	2497	if @{ $self->{query_queue} } == 1;
		2498
		2499	1
2027	}	2500	}
2028		2501
2029	cf::client->attach (	2502	cf::client->attach (
		2503	on_connect => sub {
		2504	my ($ns) = @_;
		2505
		2506	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2507	},
2030	on_reply => sub {	2508	on_reply => sub {
2031	my ($ns, $msg) = @_;	2509	my ($ns, $msg) = @_;
2032		2510
2033	# this weird shuffling is so that direct followup queries	2511	# this weird shuffling is so that direct followup queries
2034	# get handled first	2512	# get handled first
…		…
2046	} else {	2524	} else {
2047	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2525	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2048	}	2526	}
2049	}	2527	}
2050	},	2528	},
		2529	on_exticmd => sub {
		2530	my ($ns, $buf) = @_;
		2531
		2532	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2533
		2534	if (ref $msg) {
		2535	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2536	if (my %reply = $cb->($ns, $msg)) {
		2537	$reply{msgid} = $msg->{msgid};
		2538	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2539	}
		2540	}
		2541	} else {
		2542	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2543	}
		2544
		2545	cf::override;
		2546	},
2051	);	2547	);
2052		2548
2053	=item $client->async (\&cb)	2549	=item $client->async (\&cb)
2054		2550
2055	Create a new coroutine, running the specified callback. The coroutine will	2551	Create a new coroutine, running the specified callback. The coroutine will
…		…
2102		2598
2103	# here we export the classes and methods available to script code	2599	# here we export the classes and methods available to script code
2104		2600
2105	=pod	2601	=pod
2106		2602
2107	The following fucntions and emthods are available within a safe environment:	2603	The following functions and methods are available within a safe environment:
2108		2604
2109	cf::object contr pay_amount pay_player map	2605	cf::object
		2606	contr pay_amount pay_player map x y force_find force_add
		2607	insert remove
		2608
2110	cf::object::player player	2609	cf::object::player
2111	cf::player peaceful	2610	player
2112	cf::map trigger	2611
		2612	cf::player
		2613	peaceful
		2614
		2615	cf::map
		2616	trigger
2113		2617
2114	=cut	2618	=cut
2115		2619
2116	for (	2620	for (
2117	["cf::object" => qw(contr pay_amount pay_player map)],	2621	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2622	insert remove)],
2118	["cf::object::player" => qw(player)],	2623	["cf::object::player" => qw(player)],
2119	["cf::player" => qw(peaceful)],	2624	["cf::player" => qw(peaceful)],
2120	["cf::map" => qw(trigger)],	2625	["cf::map" => qw(trigger)],
2121	) {	2626	) {
2122	no strict 'refs';	2627	no strict 'refs';
…		…
2193	=back	2698	=back
2194		2699
2195	=cut	2700	=cut
2196		2701
2197	#############################################################################	2702	#############################################################################
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	2703	# the server's init and main functions
2271		2704
2272	sub load_faces {	2705	sub load_facedata($) {
2273	my $path = sprintf "%s/faces", cf::datadir;	2706	my ($path) = @_;
2274		2707
2275	warn "loading faces from $path\n";	2708	warn "loading facedata from $path\n";
2276		2709
2277	my $faces;	2710	my $facedata;
2278	0 < aio_load $path, $faces	2711	0 < aio_load $path, $facedata
2279	or die "$path: $!";	2712	or die "$path: $!";
2280		2713
2281	Coro::cede;
2282	$faces = Storable::thaw $faces;	2714	$facedata = Coro::Storable::thaw $facedata;
2283	Coro::cede;
2284		2715
		2716	$facedata->{version} == 2
		2717	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2718
		2719	{
		2720	my $faces = $facedata->{faceinfo};
		2721
2285	while (my ($face, $info) = each %$faces) {	2722	while (my ($face, $info) = each %$faces) {
2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2723	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2724	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2725	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2726	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2289	Coro::cede;	2727	Coro::cede;
		2728	}
		2729
		2730	while (my ($face, $info) = each %$faces) {
		2731	next unless $info->{smooth};
		2732	my $idx = cf::face::find $face
		2733	or next;
		2734	if (my $smooth = cf::face::find $info->{smooth}) {
		2735	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2736	} else {
		2737	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2738	}
		2739	Coro::cede;
		2740	}
		2741	}
		2742
		2743	{
		2744	my $anims = $facedata->{animinfo};
		2745
		2746	while (my ($anim, $info) = each %$anims) {
		2747	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2748	Coro::cede;
		2749	}
		2750
		2751	cf::anim::invalidate_all; # d'oh
2290	}	2752	}
2291		2753
2292	1	2754	1
2293	}	2755	}
2294		2756
		2757	sub reload_regions {
		2758	load_resource_file "$MAPDIR/regions"
		2759	or die "unable to load regions file\n";
		2760	}
		2761
		2762	sub reload_facedata {
		2763	load_facedata "$DATADIR/facedata"
		2764	or die "unable to load facedata\n";
		2765	}
		2766
		2767	sub reload_archetypes {
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	#d# NEED to laod twice to resolve forward references
		2771	# this really needs to be done in an extra post-pass
		2772	# (which needs to be synchronous, so solve it differently)
		2773	load_resource_file "$DATADIR/archetypes"
		2774	or die "unable to load archetypes\n";
		2775	}
		2776
		2777	sub reload_treasures {
		2778	load_resource_file "$DATADIR/treasures"
		2779	or die "unable to load treasurelists\n";
		2780	}
		2781
2295	sub reload_resources {	2782	sub reload_resources {
2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2783	warn "reloading resource files...\n";
2297	or die "unable to load regions file\n";#d#	2784
		2785	reload_regions;
2298	load_faces	2786	reload_facedata;
2299	or die "unable to load faces\n";#d#	2787	#reload_archetypes;#d#
		2788	reload_archetypes;
		2789	reload_treasures;
		2790
		2791	warn "finished reloading resource files\n";
2300	}	2792	}
2301		2793
2302	sub init {	2794	sub init {
2303	reload_resources;	2795	reload_resources;
2304	}	2796	}
2305		2797
2306	sub cfg_load {	2798	sub cfg_load {
2307	open my $fh, "<:utf8", cf::confdir . "/config"	2799	open my $fh, "<:utf8", "$CONFDIR/config"
2308	or return;	2800	or return;
2309		2801
2310	local $/;	2802	local $/;
2311	*CFG = YAML::Syck::Load <$fh>;	2803	*CFG = YAML::Syck::Load <$fh>;
2312		2804
…		…
2357	},	2849	},
2358	);	2850	);
2359	}	2851	}
2360	}	2852	}
2361		2853
		2854	sub write_runtime {
		2855	my $runtime = "$LOCALDIR/runtime";
		2856
		2857	# first touch the runtime file to show we are still running:
		2858	# the fsync below can take a very very long time.
		2859
		2860	IO::AIO::aio_utime $runtime, undef, undef;
		2861
		2862	my $guard = cf::lock_acquire "write_runtime";
		2863
		2864	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2865	or return;
		2866
		2867	my $value = $cf::RUNTIME + 90 + 10;
		2868	# 10 is the runtime save interval, for a monotonic clock
		2869	# 60 allows for the watchdog to kill the server.
		2870
		2871	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2872	and return;
		2873
		2874	# always fsync - this file is important
		2875	aio_fsync $fh
		2876	and return;
		2877
		2878	# touch it again to show we are up-to-date
		2879	aio_utime $fh, undef, undef;
		2880
		2881	close $fh
		2882	or return;
		2883
		2884	aio_rename "$runtime~", $runtime
		2885	and return;
		2886
		2887	warn "runtime file written.\n";
		2888
		2889	1
		2890	}
		2891
2362	sub emergency_save() {	2892	sub emergency_save() {
2363	my $freeze_guard = cf::freeze_mainloop;	2893	my $freeze_guard = cf::freeze_mainloop;
2364		2894
2365	warn "enter emergency perl save\n";	2895	warn "enter emergency perl save\n";
2366		2896
…		…
2397		2927
2398	warn Carp::longmess "post_cleanup backtrace"	2928	warn Carp::longmess "post_cleanup backtrace"
2399	if $make_core;	2929	if $make_core;
2400	}	2930	}
2401		2931
2402	sub reload() {	2932	sub do_reload_perl() {
2403	# can/must only be called in main	2933	# can/must only be called in main
2404	if ($Coro::current != $Coro::main) {	2934	if ($Coro::current != $Coro::main) {
2405	warn "can only reload from main coroutine";	2935	warn "can only reload from main coroutine";
2406	return;	2936	return;
2407	}	2937	}
…		…
2441	%EXT_CORO = ();	2971	%EXT_CORO = ();
2442		2972
2443	warn "removing commands";	2973	warn "removing commands";
2444	%COMMAND = ();	2974	%COMMAND = ();
2445		2975
2446	warn "removing ext commands";	2976	warn "removing ext/exti commands";
2447	%EXTCMD = ();	2977	%EXTCMD = ();
		2978	%EXTICMD = ();
2448		2979
2449	warn "unloading/nuking all extensions";	2980	warn "unloading/nuking all extensions";
2450	for my $pkg (@EXTS) {	2981	for my $pkg (@EXTS) {
2451	warn "... unloading $pkg";	2982	warn "... unloading $pkg";
2452		2983
…		…
2482	Symbol::delete_package "safe::$_"	3013	Symbol::delete_package "safe::$_"
2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3014	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2484		3015
2485	warn "unloading cf.pm \"a bit\"";	3016	warn "unloading cf.pm \"a bit\"";
2486	delete $INC{"cf.pm"};	3017	delete $INC{"cf.pm"};
		3018	delete $INC{"cf/pod.pm"};
2487		3019
2488	# don't, removes xs symbols, too,	3020	# don't, removes xs symbols, too,
2489	# and global variables created in xs	3021	# and global variables created in xs
2490	#Symbol::delete_package __PACKAGE__;	3022	#Symbol::delete_package __PACKAGE__;
2491		3023
…		…
2506	warn "reattaching attachments to maps";	3038	warn "reattaching attachments to maps";
2507	reattach $_ for values %MAP;	3039	reattach $_ for values %MAP;
2508	warn "reattaching attachments to players";	3040	warn "reattaching attachments to players";
2509	reattach $_ for values %PLAYER;	3041	reattach $_ for values %PLAYER;
2510		3042
2511	warn "loading reloadable resources";
2512	reload_resources;
2513
2514	warn "leaving sync_job";	3043	warn "leaving sync_job";
2515		3044
2516	1	3045	1
2517	} or do {	3046	} or do {
2518	warn $@;	3047	warn $@;
…		…
2523	warn "reloaded";	3052	warn "reloaded";
2524	};	3053	};
2525		3054
2526	our $RELOAD_WATCHER; # used only during reload	3055	our $RELOAD_WATCHER; # used only during reload
2527		3056
		3057	sub reload_perl() {
		3058	# doing reload synchronously and two reloads happen back-to-back,
		3059	# coro crashes during coro_state_free->destroy here.
		3060
		3061	$RELOAD_WATCHER ||= Event->timer (
		3062	reentrant => 0,
		3063	after => 0,
		3064	data => WF_AUTOCANCEL,
		3065	cb => sub {
		3066	do_reload_perl;
		3067	undef $RELOAD_WATCHER;
		3068	},
		3069	);
		3070	}
		3071
2528	register_command "reload" => sub {	3072	register_command "reload" => sub {
2529	my ($who, $arg) = @_;	3073	my ($who, $arg) = @_;
2530		3074
2531	if ($who->flag (FLAG_WIZ)) {	3075	if ($who->flag (FLAG_WIZ)) {
2532	$who->message ("reloading server.");	3076	$who->message ("reloading server.");
2533		3077	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	}	3078	}
2547	};	3079	};
2548		3080
2549	unshift @INC, $LIBDIR;	3081	unshift @INC, $LIBDIR;
2550		3082
2551	my $bug_warning = 0;	3083	my $bug_warning = 0;
2552		3084
		3085	our @WAIT_FOR_TICK;
		3086	our @WAIT_FOR_TICK_BEGIN;
		3087
		3088	sub wait_for_tick {
		3089	return unless $TICK_WATCHER->is_active;
		3090	return if $Coro::current == $Coro::main;
		3091
		3092	my $signal = new Coro::Signal;
		3093	push @WAIT_FOR_TICK, $signal;
		3094	$signal->wait;
		3095	}
		3096
		3097	sub wait_for_tick_begin {
		3098	return unless $TICK_WATCHER->is_active;
		3099	return if $Coro::current == $Coro::main;
		3100
		3101	my $signal = new Coro::Signal;
		3102	push @WAIT_FOR_TICK_BEGIN, $signal;
		3103	$signal->wait;
		3104	}
		3105
		3106	my $min = 1e6;#d#
		3107	my $avg = 10;
2553	$TICK_WATCHER = Event->timer (	3108	$TICK_WATCHER = Event->timer (
2554	reentrant => 0,	3109	reentrant => 0,
2555	parked => 1,	3110	parked => 1,
2556	prio => 0,	3111	prio => 0,
2557	at => $NEXT_TICK || $TICK,	3112	at => $NEXT_TICK || $TICK,
…		…
2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3116	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2562	unless ++$bug_warning > 10;	3117	unless ++$bug_warning > 10;
2563	return;	3118	return;
2564	}	3119	}
2565		3120
2566	$NOW = Event::time;	3121	$NOW = $tick_start = Event::time;
2567		3122
2568	cf::server_tick; # one server iteration	3123	cf::server_tick; # one server iteration
		3124
		3125	0 && sync_job {#d#
		3126	for(1..10) {
		3127	my $t = Event::time;
		3128	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3129	or die;
		3130
		3131	$map->width (50);
		3132	$map->height (50);
		3133	$map->alloc;
		3134	$map->_load_objects ("/tmp/x.map", 1);
		3135	my $t = Event::time - $t;
		3136
		3137	#next unless $t < 0.0013;#d#
		3138	if ($t < $min) {
		3139	$min = $t;
		3140	}
		3141	$avg = $avg * 0.99 + $t * 0.01;
		3142	}
		3143	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3144	exit 0;
		3145	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3146	};
		3147
2569	$RUNTIME += $TICK;	3148	$RUNTIME += $TICK;
2570	$NEXT_TICK += $TICK;	3149	$NEXT_TICK += $TICK;
2571		3150
2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3151	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573	$NEXT_RUNTIME_WRITE = $NOW + 10;	3152	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2575	write_runtime	3154	write_runtime
2576	or warn "ERROR: unable to write runtime file: $!";	3155	or warn "ERROR: unable to write runtime file: $!";
2577	};	3156	};
2578	}	3157	}
2579		3158
2580	$WAIT_FOR_TICK->broadcast;
2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582
2583	# my $AFTER = Event::time;	3159	# my $AFTER = Event::time;
2584	# warn $AFTER - $NOW;#d#	3160	# warn $AFTER - $NOW;#d#
2585		3161
		3162	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3163	$sig->send;
		3164	}
		3165	while (my $sig = shift @WAIT_FOR_TICK) {
		3166	$sig->send;
		3167	}
		3168
		3169	$NOW = Event::time;
		3170
2586	# if we are delayed by four ticks or more, skip them all	3171	# if we are delayed by four ticks or more, skip them all
2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3172	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2588		3173
2589	$TICK_WATCHER->at ($NEXT_TICK);	3174	$TICK_WATCHER->at ($NEXT_TICK);
2590	$TICK_WATCHER->start;	3175	$TICK_WATCHER->start;
		3176
		3177	$LOAD = ($NOW - $tick_start) / $TICK;
		3178	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3179
		3180	_post_tick;
		3181
		3182
2591	},	3183	},
2592	);	3184	);
2593		3185
2594	{	3186	{
2595	BDB::max_poll_time $TICK * 0.1;	3187	BDB::max_poll_time $TICK * 0.1;
…		…
2623		3215
2624	cf::sync_job {	3216	cf::sync_job {
2625	eval {	3217	eval {
2626	BDB::db_env_open	3218	BDB::db_env_open
2627	$DB_ENV,	3219	$DB_ENV,
2628	$BDB_ENV_DIR,	3220	$BDBDIR,
2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3221	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3222	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631	0666;	3223	0666;
2632		3224
2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3225	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2634		3226
2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3227	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636	$DB_ENV->set_lk_detect;	3228	$DB_ENV->set_lk_detect;
2637	};	3229	};
2638		3230
…		…
2654	prio => 6,	3246	prio => 6,
2655	cb => \&IO::AIO::poll_cb,	3247	cb => \&IO::AIO::poll_cb,
2656	);	3248	);
2657	}	3249	}
2658		3250
		3251	my $_log_backtrace;
		3252
		3253	sub _log_backtrace {
		3254	my ($msg, @addr) = @_;
		3255
		3256	$msg =~ s/\n//;
		3257
		3258	# limit the # of concurrent backtraces
		3259	if ($_log_backtrace < 2) {
		3260	++$_log_backtrace;
		3261	async {
		3262	my @bt = fork_call {
		3263	@addr = map { sprintf "%x", $_ } @addr;
		3264	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3265	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3266	or die "addr2line: $!";
		3267
		3268	my @funcs;
		3269	my @res = <$fh>;
		3270	chomp for @res;
		3271	while (@res) {
		3272	my ($func, $line) = splice @res, 0, 2, ();
		3273	push @funcs, "[$func] $line";
		3274	}
		3275
		3276	@funcs
		3277	};
		3278
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] $_\n" for @bt;
		3281	--$_log_backtrace;
		3282	};
		3283	} else {
		3284	LOG llevInfo, "[ABT] $msg\n";
		3285	LOG llevInfo, "[ABT] [suppressed]\n";
		3286	}
		3287	}
		3288
		3289	# load additional modules
		3290	use cf::pod;
		3291
2659	END { cf::emergency_save }	3292	END { cf::emergency_save }
2660		3293
2661	1	3294	1
2662		3295

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