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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.237 by root, Fri Apr 13 05:08:51 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 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;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
21	use Coro::Storable;	23	use Coro::Storable;
22		24
		25	use JSON::XS 1.4 ();
23	use BDB ();	26	use BDB ();
24	use Data::Dumper;	27	use Data::Dumper;
25	use Digest::MD5;	28	use Digest::MD5;
26	use Fcntl;	29	use Fcntl;
27	use YAML::Syck ();	30	use YAML::Syck ();
…		…
47	our %COMMAND = ();	50	our %COMMAND = ();
48	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
49		52
50	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
54		58
55	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
56	our @EVENT;	60	our @EVENT;
57	our $LIBDIR = datadir . "/ext";
58		61
59	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(!)
60	our $TICK_WATCHER;	75	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	78	our $NEXT_TICK;
64	our $NOW;	79	our $NOW;
…		…
73	our $RUNTIME;	88	our $RUNTIME;
74		89
75	our %PLAYER; # all users	90	our %PLAYER; # all users
76	our %MAP; # all maps	91	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80
81	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
82	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
83		93
84	# 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 ∕
85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
86		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 $tick_start; # for load detecting purposes
		100
87	binmode STDOUT;	101	binmode STDOUT;
88	binmode STDERR;	102	binmode STDERR;
89		103
90	# read virtual server time, if available	104	# read virtual server time, if available
91	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
92	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
93	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
94	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
95	}	109	}
96		110
97	mkdir cf::localdir;	111	mkdir $_
98	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir cf::localdir . "/" . cf::tmpdir;
100	mkdir cf::localdir . "/" . cf::uniquedir;
101	mkdir $RANDOM_MAPS;
102	mkdir $BDB_ENV_DIR;
103		113
104	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
105		115
106	sub cf::map::normalise;	116	sub cf::map::normalise;
107		117
…		…
118	=item $cf::RUNTIME	128	=item $cf::RUNTIME
119		129
120	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
121	every server tick.	131	every server tick.
122		132
123	=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
124		136
125	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
126	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.
127		141
128	=item $cf::NOW	142	=item $cf::NOW
129		143
130	The time of the last (current) server tick.	144	The time of the last (current) server tick.
131		145
132	=item $cf::TICK	146	=item $cf::TICK
133		147
134	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.
135		159
136	=item %cf::CFG	160	=item %cf::CFG
137		161
138	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
139	from wherever your confdir points to.	163	from wherever your confdir points to.
140		164
141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
142		166
143	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
144	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
145	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.
146	window of cpu time available, or simply to synchronise to the server tick.
147		170
148	=back	171	=back
149		172
150	=cut	173	=cut
151		174
152	BEGIN {	175	BEGIN {
153	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
154	my $msg = join "", @_;	177	my $msg = join "", @_;
155	utf8::encode $msg;
156		178
157	$msg .= "\n"	179	$msg .= "\n"
158	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
159		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
160	LOG llevError, $msg;	185	LOG llevError, $msg;
161	};	186	};
162	}	187	}
163		188
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		196
171	# 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
172	# within the Safe compartment.	198	# within the Safe compartment.
173	for my $pkg (qw(	199	for my $pkg (qw(
174	cf::global cf::attachable	200	cf::global cf::attachable
…		…
182	}	208	}
183		209
184	$Event::DIED = sub {	210	$Event::DIED = sub {
185	warn "error in event callback: @_";	211	warn "error in event callback: @_";
186	};	212	};
		213
		214	#############################################################################
187		215
188	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
189		217
190	=over 4	218	=over 4
191		219
…		…
210	$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;
211	$d	239	$d
212	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
213	}	241	}
214		242
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
218		244
219	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
220		246
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.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
224		257
225	=item cf::lock_wait $string	258	=item cf::lock_wait $string
226		259
227	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
228		261
…		…
234	returned.	267	returned.
235		268
236	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
237	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
238		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
239	=cut	276	=cut
240		277
241	our %LOCK;	278	our %LOCK;
242		279
243	sub lock_wait($) {	280	sub lock_wait($) {
…		…
260		297
261	Coro::guard {	298	Coro::guard {
262	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
264	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
265	}	308	}
266		309
267	sub freeze_mainloop {	310	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
269		312
…		…
284		327
285	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
286		329
287	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
288		331
289	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
292		336
293	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
296	fast or be very important.	340	fast or be very important.
…		…
299		343
300	sub sync_job(&) {	344	sub sync_job(&) {
301	my ($job) = @_;	345	my ($job) = @_;
302		346
303	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
304	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
306		352
307	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
319		365
320	while ($busy) {	366	while ($busy) {
321	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
322	}	368	}
323		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
324	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
325	} else {	378	} else {
326	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
327		380
328	$job->()	381	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
348		401
349	$coro	402	$coro
350	}	403	}
351		404
352	sub write_runtime {	405	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		406
355	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.
356		411
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
358	or return;
359		413
360	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		416
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
365	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
366		421
367	# always fsync - this file is important	422	if (my $pid = fork) {
368	aio_fsync $fh
369	and return;
370
371	close $fh	423	close $fh2;
372	or return;
373		424
374	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
375	and return;	426	warn "pst<$res>" unless $res =~ /^pst/;
		427	$res = Coro::Storable::thaw $res;
376		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	Carp::confess $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	local $Coro::idle;
		439	$Coro::current->prio (Coro::PRIO_MAX);
		440	eval {
		441	close $fh1;
		442
		443	my @res = eval { $cb->(@args) };
		444
		445	open my $fh, ">", \my $buf
		446	or die "fork_call: cannot open fh-to-buf in child : $!";
		447	Storable::store_fd +($@ ? \"$@" : \@res), $fh;
		448	close $fh;
		449
		450	warn "writing ", length $buf;
		451	my $x;
		452	(length $buf) == ($x = syswrite $fh2, $buf)
		453	or warn "error writing ".(length $buf)." != $x\n";
		454	close $fh2;
		455	};
		456
		457	warn $@ if $@;
		458	_exit 0;
377	1	459	}
		460	}
		461
		462	=item $value = cf::db_get $family => $key
		463
		464	Returns a single value from the environment database.
		465
		466	=item cf::db_put $family => $key => $value
		467
		468	Stores the given C<$value> in the family. It can currently store binary
		469	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		470
		471	=cut
		472
		473	our $DB;
		474
		475	sub db_init {
		476	unless ($DB) {
		477	$DB = BDB::db_create $DB_ENV;
		478
		479	cf::sync_job {
		480	eval {
		481	$DB->set_flags (BDB::CHKSUM);
		482
		483	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		484	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		485	cf::cleanup "db_open(db): $!" if $!;
		486	};
		487	cf::cleanup "db_open(db): $@" if $@;
		488	};
		489	}
		490	}
		491
		492	sub db_get($$) {
		493	my $key = "$_[0]/$_[1]";
		494
		495	cf::sync_job {
		496	BDB::db_get $DB, undef, $key, my $data;
		497
		498	$! ? ()
		499	: $data
		500	}
		501	}
		502
		503	sub db_put($$$) {
		504	BDB::dbreq_pri 4;
		505	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		506	}
		507
		508	=item cf::cache $id => [$paths...], $processversion => $process
		509
		510	Generic caching function that returns the value of the resource $id,
		511	caching and regenerating as required.
		512
		513	This function can block.
		514
		515	=cut
		516
		517	sub cache {
		518	my ($id, $src, $processversion, $process) = @_;
		519
		520	my $meta =
		521	join "\x00",
		522	$processversion,
		523	map {
		524	aio_stat $_
		525	and Carp::croak "$_: $!";
		526
		527	($_, (stat _)[7,9])
		528	} @$src;
		529
		530	my $dbmeta = db_get cache => "$id/meta";
		531	if ($dbmeta ne $meta) {
		532	# changed, we may need to process
		533
		534	my @data;
		535	my $md5;
		536
		537	for (0 .. $#$src) {
		538	0 <= aio_load $src->[$_], $data[$_]
		539	or Carp::croak "$src->[$_]: $!";
		540	}
		541
		542	# if processing is expensive, check
		543	# checksum first
		544	if (1) {
		545	$md5 =
		546	join "\x00",
		547	$processversion,
		548	map {
		549	Coro::cede;
		550	($src->[$_], Digest::MD5::md5_hex $data[$_])
		551	} 0.. $#$src;
		552
		553
		554	my $dbmd5 = db_get cache => "$id/md5";
		555	if ($dbmd5 eq $md5) {
		556	db_put cache => "$id/meta", $meta;
		557
		558	return db_get cache => "$id/data";
		559	}
		560	}
		561
		562	my $t1 = Time::HiRes::time;
		563	my $data = $process->(\@data);
		564	my $t2 = Time::HiRes::time;
		565
		566	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		567
		568	db_put cache => "$id/data", $data;
		569	db_put cache => "$id/md5" , $md5;
		570	db_put cache => "$id/meta", $meta;
		571
		572	return $data;
		573	}
		574
		575	db_get cache => "$id/data"
378	}	576	}
379		577
380	=item cf::datalog type => key => value, ...	578	=item cf::datalog type => key => value, ...
381		579
382	Log a datalog packet of the given type with the given key-value pairs.	580	Log a datalog packet of the given type with the given key-value pairs.
…		…
400	attach callbacks/event handlers (a collection of which is called an "attachment")	598	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	599	to it. All such attachable objects support the following methods.
402		600
403	In the following description, CLASS can be any of C<global>, C<object>	601	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	602	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	603	Crossfire TRT).
406		604
407	=over 4	605	=over 4
408		606
409	=item $attachable->attach ($attachment, key => $value...)	607	=item $attachable->attach ($attachment, key => $value...)
410		608
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	771	$registry = $CB_TYPE[$object_type] ||= [];
574		772
575	} elsif ($type eq "subtype") {	773	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	774	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	775	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	776	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		777
580	} elsif ($type eq "package") {	778	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	779	my $pkg = shift @arg;
582		780
583	while (my ($name, $id) = each %cb_id) {	781	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	810	_attach $registry, $klass, @attach;
613	}	811	}
614		812
615	$obj->{$name} = \%arg;	813	$obj->{$name} = \%arg;
616	} else {	814	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	815	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	816	}
619		817
620	$obj->{_attachment}{$name} = undef;	818	$obj->{_attachment}{$name} = undef;
621	}	819	}
622		820
…		…
624	if (ref $_[0]) {	822	if (ref $_[0]) {
625	_object_attach @_;	823	_object_attach @_;
626	} else {	824	} else {
627	_attach shift->_attach_registry, @_;	825	_attach shift->_attach_registry, @_;
628	}	826	}
		827	_recalc_want;
629	};	828	};
630		829
631	# all those should be optimised	830	# all those should be optimised
632	sub cf::attachable::detach {	831	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	835	delete $obj->{_attachment}{$name};
637	reattach ($obj);	836	reattach ($obj);
638	} else {	837	} else {
639	Carp::croak "cannot, currently, detach class attachments";	838	Carp::croak "cannot, currently, detach class attachments";
640	}	839	}
		840	_recalc_want;
641	};	841	};
642		842
643	sub cf::attachable::attached {	843	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
645		845
…		…
818	or return;	1018	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1019	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1020	}
821		1021
822	warn sprintf "loading %s (%d)\n",	1022	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1023	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1024	return ($data, $av);
825	}	1025	}
		1026
		1027	=head2 COMMAND CALLBACKS
		1028
		1029	=over 4
		1030
		1031	=cut
826		1032
827	#############################################################################	1033	#############################################################################
828	# command handling &c	1034	# command handling &c
829		1035
830	=item cf::register_command $name => \&callback($ob,$args);	1036	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1049	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1050	}
845		1051
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1052	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1053
848	Register a callbackf ro execution when the client sends an extcmd packet.	1054	Register a callback for execution when the client sends an (synchronous)
		1055	extcmd packet. Ext commands will be processed in the order they are
		1056	received by the server, like other user commands. The first argument is
		1057	the logged-in player. Ext commands can only be processed after a player
		1058	has logged in successfully.
849		1059
850	If the callback returns something, it is sent back as if reply was being	1060	If the callback returns something, it is sent back as if reply was being
851	called.	1061	called.
852		1062
		1063	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1064
		1065	Register a callback for execution when the client sends an (asynchronous)
		1066	exticmd packet. Exti commands are processed by the server as soon as they
		1067	are received, i.e. out of order w.r.t. other commands. The first argument
		1068	is a client socket. Exti commands can be received anytime, even before
		1069	log-in.
		1070
		1071	If the callback returns something, it is sent back as if reply was being
		1072	called.
		1073
853	=cut	1074	=cut
854		1075
855	sub register_extcmd {	1076	sub register_extcmd {
856	my ($name, $cb) = @_;	1077	my ($name, $cb) = @_;
857		1078
858	$EXTCMD{$name} = $cb;	1079	$EXTCMD{$name} = $cb;
		1080	}
		1081
		1082	sub register_exticmd {
		1083	my ($name, $cb) = @_;
		1084
		1085	$EXTICMD{$name} = $cb;
859	}	1086	}
860		1087
861	cf::player->attach (	1088	cf::player->attach (
862	on_command => sub {	1089	on_command => sub {
863	my ($pl, $name, $params) = @_;	1090	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1099	cf::override;
873	},	1100	},
874	on_extcmd => sub {	1101	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1102	my ($pl, $buf) = @_;
876		1103
877	my $msg = eval { from_json $buf };	1104	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1105
879	if (ref $msg) {	1106	if (ref $msg) {
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1107	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
881	if (my %reply = $cb->($pl, $msg)) {	1108	if (my %reply = $cb->($pl, $msg)) {
882	$pl->ext_reply ($msg->{msgid}, %reply);	1109	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
888		1115
889	cf::override;	1116	cf::override;
890	},	1117	},
891	);	1118	);
892		1119
893	sub load_extension {
894	my ($path) = @_;
895
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
897	my $base = $1;
898	my $pkg = $1;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}
921	die $@;
922	}
923
924	push @EXTS, $pkg;
925	}
926
927	sub load_extensions {	1120	sub load_extensions {
		1121	cf::sync_job {
		1122	my %todo;
		1123
928	for my $ext (<$LIBDIR/*.ext>) {	1124	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1125	next unless -r $path;
930	eval {	1126
931	load_extension $ext;	1127	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1128	my $base = $1;
		1129	my $pkg = $1;
		1130	$pkg =~ s/[^[:word:]]/_/g;
		1131	$pkg = "ext::$pkg";
		1132
		1133	open my $fh, "<:utf8", $path
		1134	or die "$path: $!";
		1135
		1136	my $source = do { local $/; <$fh> };
		1137
		1138	my %ext = (
		1139	path => $path,
		1140	base => $base,
		1141	pkg => $pkg,
		1142	);
		1143
		1144	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1145	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1146
		1147	$ext{source} =
		1148	"package $pkg; use strict; use utf8;\n"
		1149	. "#line 1 \"$path\"\n{\n"
		1150	. $source
		1151	. "\n};\n1";
		1152
		1153	$todo{$base} = \%ext;
		1154	}
		1155
		1156	my %done;
		1157	while (%todo) {
		1158	my $progress;
		1159
		1160	while (my ($k, $v) = each %todo) {
		1161	for (split /,\s*/, $v->{meta}{depends}) {
		1162	goto skip
		1163	unless exists $done{$_};
		1164	}
		1165
		1166	warn "... loading '$k' into '$v->{pkg}'\n";
		1167
		1168	unless (eval $v->{source}) {
		1169	my $msg = $@ ? "$v->{path}: $@\n"
		1170	: "$v->{base}: extension inactive.\n";
		1171
		1172	if (exists $v->{meta}{mandatory}) {
		1173	warn $msg;
		1174	warn "mandatory extension failed to load, exiting.\n";
		1175	exit 1;
		1176	}
		1177
		1178	warn $msg;
		1179	}
		1180
		1181	$done{$k} = delete $todo{$k};
		1182	push @EXTS, $v->{pkg};
		1183	$progress = 1;
932	1	1184	}
933	} or warn "$ext not loaded: $@";	1185
		1186	skip:
		1187	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1188	unless $progress;
		1189	}
934	}	1190	};
935	}	1191	}
936		1192
937	#############################################################################	1193	#############################################################################
938		1194
		1195	=back
		1196
939	=head2 CORE EXTENSIONS	1197	=head2 CORE EXTENSIONS
940		1198
941	Functions and methods that extend core crossfire objects.	1199	Functions and methods that extend core crossfire objects.
942		1200
943	=cut	1201	=cut
…		…
955	Returns the given player object, loading it if necessary (might block).	1213	Returns the given player object, loading it if necessary (might block).
956		1214
957	=cut	1215	=cut
958		1216
959	sub playerdir($) {	1217	sub playerdir($) {
960	cf::localdir	1218	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1219	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1220	}
966		1221
967	sub path($) {	1222	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1223	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1343	while and may block, so not sync_job-capable, ever.
1089		1344
1090	=cut	1345	=cut
1091		1346
1092	sub list_logins {	1347	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1348	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1349	or return [];
1095		1350
1096	my @logins;	1351	my @logins;
1097		1352
1098	for my $login (@$dirs) {	1353	for my $login (@$dirs) {
…		…
1133	}	1388	}
1134		1389
1135	\@paths	1390	\@paths
1136	}	1391	}
1137		1392
		1393	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1394
		1395	Expand crossfire pod fragments into protocol xml.
		1396
		1397	=cut
		1398
		1399	sub expand_cfpod {
		1400	((my $self), (local $_)) = @_;
		1401
		1402	# escape & and <
		1403	s/&/&amp;/g;
		1404	s/(?<![BIUGH])</&lt;/g;
		1405
		1406	# this is buggy, it needs to properly take care of nested <'s
		1407
		1408	1 while
		1409	# replace B<>, I<>, U<> etc.
		1410	s/B<([^\>]*)>/<b>$1<\/b>/
		1411	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1412	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1413	# replace G<male|female> tags
		1414	|| s{G<([^>|]*)\|([^>]*)>}{
		1415	$self->gender ? $2 : $1
		1416	}ge
		1417	# replace H<hint text>
		1418	|| s{H<([^\>]*)>}
		1419	{
		1420	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1421	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1422	"")
		1423	[$self->{hintmode}]
		1424	}ge;
		1425
		1426	# create single paragraphs (very hackish)
		1427	s/(?<=\S)\n(?=\w)/ /g;
		1428
		1429	# compress some whitespace
		1430	s/\s+\n/\n/g; # ws line-ends
		1431	s/\n\n+/\n/g; # double lines
		1432	s/^\n+//; # beginning lines
		1433	s/\n+$//; # ending lines
		1434
		1435	$_
		1436	}
		1437
		1438	sub hintmode {
		1439	$_[0]{hintmode} = $_[1] if @_ > 1;
		1440	$_[0]{hintmode}
		1441	}
		1442
1138	=item $player->ext_reply ($msgid, %msg)	1443	=item $player->ext_reply ($msgid, %msg)
1139		1444
1140	Sends an ext reply to the player.	1445	Sends an ext reply to the player.
1141		1446
1142	=cut	1447	=cut
1143		1448
1144	sub ext_reply($$%) {	1449	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1450	my ($self, $id, %msg) = @_;
1146		1451
1147	$msg{msgid} = $id;	1452	$msg{msgid} = $id;
1148		1453	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1454	}
1151		1455
1152	=item $player->ext_event ($type, %msg)	1456	=item $player->ext_event ($type, %msg)
1153		1457
1154	Sends an ext event to the client.	1458	Sends an ext event to the client.
…		…
1159	my ($self, $type, %msg) = @_;	1463	my ($self, $type, %msg) = @_;
1160		1464
1161	$self->ns->ext_event ($type, %msg);	1465	$self->ns->ext_event ($type, %msg);
1162	}	1466	}
1163		1467
1164	package cf;	1468	=head3 cf::region
		1469
		1470	=over 4
		1471
		1472	=cut
		1473
		1474	package cf::region;
		1475
		1476	=item cf::region::find_by_path $path
		1477
		1478	Tries to decuce the likely region for a map knowing only its path.
		1479
		1480	=cut
		1481
		1482	sub find_by_path($) {
		1483	my ($path) = @_;
		1484
		1485	my ($match, $specificity);
		1486
		1487	for my $region (list) {
		1488	if ($region->match && $path =~ $region->match) {
		1489	($match, $specificity) = ($region, $region->specificity)
		1490	if $region->specificity > $specificity;
		1491	}
		1492	}
		1493
		1494	$match
		1495	}
1165		1496
1166	=back	1497	=back
1167
1168		1498
1169	=head3 cf::map	1499	=head3 cf::map
1170		1500
1171	=over 4	1501	=over 4
1172		1502
…		…
1227	my ($self, $merge) = @_;	1557	my ($self, $merge) = @_;
1228		1558
1229	# we have to keep some variables in memory intact	1559	# we have to keep some variables in memory intact
1230	local $self->{path};	1560	local $self->{path};
1231	local $self->{load_path};	1561	local $self->{load_path};
1232	local $self->{deny_save};
1233	local $self->{deny_reset};
1234		1562
1235	$self->SUPER::thawer_merge ($merge);	1563	$self->SUPER::thawer_merge ($merge);
1236	}	1564	}
1237		1565
1238	sub normalise {	1566	sub normalise {
…		…
1310		1638
1311	# the original (read-only) location	1639	# the original (read-only) location
1312	sub load_path {	1640	sub load_path {
1313	my ($self) = @_;	1641	my ($self) = @_;
1314		1642
1315	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1643	"$MAPDIR/$self->{path}.map"
1316	}	1644	}
1317		1645
1318	# the temporary/swap location	1646	# the temporary/swap location
1319	sub save_path {	1647	sub save_path {
1320	my ($self) = @_;	1648	my ($self) = @_;
1321		1649
1322	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1650	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1323	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1651	"$TMPDIR/$path.map"
1324	}	1652	}
1325		1653
1326	# the unique path, undef == no special unique path	1654	# the unique path, undef == no special unique path
1327	sub uniq_path {	1655	sub uniq_path {
1328	my ($self) = @_;	1656	my ($self) = @_;
1329		1657
1330	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1658	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1331	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1659	"$UNIQUEDIR/$path"
1332	}	1660	}
1333		1661
1334	# and all this just because we cannot iterate over	1662	# and all this just because we cannot iterate over
1335	# all maps in C++...	1663	# all maps in C++...
1336	sub change_all_map_light {	1664	sub change_all_map_light {
1337	my ($change) = @_;	1665	my ($change) = @_;
1338		1666
1339	$_->change_map_light ($change)	1667	$_->change_map_light ($change)
1340	for grep $_->outdoor, values %cf::MAP;	1668	for grep $_->outdoor, values %cf::MAP;
		1669	}
		1670
		1671	sub decay_objects {
		1672	my ($self) = @_;
		1673
		1674	return if $self->{deny_reset};
		1675
		1676	$self->do_decay_objects;
1341	}	1677	}
1342		1678
1343	sub unlink_save {	1679	sub unlink_save {
1344	my ($self) = @_;	1680	my ($self) = @_;
1345		1681
…		…
1403	$self->load_header_orig	1739	$self->load_header_orig
1404	or return;	1740	or return;
1405	$self->prepare_orig;	1741	$self->prepare_orig;
1406	}	1742	}
1407		1743
		1744	$self->{deny_reset} = 1
		1745	if $self->no_reset;
		1746
		1747	$self->default_region (cf::region::find_by_path $self->{path})
		1748	unless $self->default_region;
		1749
1408	1	1750	1
1409	}	1751	}
1410		1752
1411	sub find;	1753	sub find;
1412	sub find {	1754	sub find {
…		…
1424	$map->{last_save} = $cf::RUNTIME;	1766	$map->{last_save} = $cf::RUNTIME;
1425		1767
1426	$map->load_header	1768	$map->load_header
1427	or return;	1769	or return;
1428		1770
1429	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1771	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1430	# doing this can freeze the server in a sync job, obviously	1772	# doing this can freeze the server in a sync job, obviously
1431	#$cf::WAIT_FOR_TICK->wait;	1773	#$cf::WAIT_FOR_TICK->wait;
1432	$map->reset;	1774	$map->reset;
1433	undef $guard;	1775	undef $guard;
1434	return find $path;	1776	return find $path;
…		…
1445	my ($self) = @_;	1787	my ($self) = @_;
1446		1788
1447	local $self->{deny_reset} = 1; # loading can take a long time	1789	local $self->{deny_reset} = 1; # loading can take a long time
1448		1790
1449	my $path = $self->{path};	1791	my $path = $self->{path};
		1792
		1793	{
1450	my $guard = cf::lock_acquire "map_load:$path";	1794	my $guard = cf::lock_acquire "map_load:$path";
1451		1795
1452	return if $self->in_memory != cf::MAP_SWAPPED;	1796	return if $self->in_memory != cf::MAP_SWAPPED;
1453		1797
1454	$self->in_memory (cf::MAP_LOADING);	1798	$self->in_memory (cf::MAP_LOADING);
1455		1799
1456	$self->alloc;	1800	$self->alloc;
1457		1801
1458	$self->pre_load;	1802	$self->pre_load;
1459
1460	$self->_load_objects ($self->{load_path}, 1)
1461	or return;
1462
1463	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1464	if delete $self->{load_original};
1465
1466	if (my $uniq = $self->uniq_path) {
1467	utf8::encode $uniq;
1468	if (aio_open $uniq, O_RDONLY, 0) {
1469	$self->clear_unique_items;
1470	$self->_load_objects ($uniq, 0);
1471	}
1472	}
1473
1474	Coro::cede;
1475
1476	# now do the right thing for maps
1477	$self->link_multipart_objects;
1478
1479	unless ($self->{deny_activate}) {
1480	$self->decay_objects;
1481	$self->fix_auto_apply;
1482	$self->update_buttons;
1483	Coro::cede;	1803	Coro::cede;
1484	$self->set_darkness_map;	1804
		1805	$self->_load_objects ($self->{load_path}, 1)
		1806	or return;
		1807
		1808	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1809	if delete $self->{load_original};
		1810
		1811	if (my $uniq = $self->uniq_path) {
		1812	utf8::encode $uniq;
		1813	if (aio_open $uniq, O_RDONLY, 0) {
		1814	$self->clear_unique_items;
		1815	$self->_load_objects ($uniq, 0);
		1816	}
		1817	}
		1818
		1819	Coro::cede;
		1820	# now do the right thing for maps
		1821	$self->link_multipart_objects;
1485	$self->difficulty ($self->estimate_difficulty)	1822	$self->difficulty ($self->estimate_difficulty)
1486	unless $self->difficulty;	1823	unless $self->difficulty;
1487	Coro::cede;	1824	Coro::cede;
		1825
		1826	unless ($self->{deny_activate}) {
		1827	$self->decay_objects;
		1828	$self->fix_auto_apply;
		1829	$self->update_buttons;
		1830	Coro::cede;
		1831	$self->set_darkness_map;
		1832	Coro::cede;
1488	$self->activate;	1833	$self->activate;
		1834	}
		1835
		1836	$self->in_memory (cf::MAP_IN_MEMORY);
1489	}	1837	}
1490		1838
1491	$self->post_load;	1839	$self->post_load;
1492
1493	$self->in_memory (cf::MAP_IN_MEMORY);
1494	}	1840	}
1495		1841
1496	sub customise_for {	1842	sub customise_for {
1497	my ($self, $ob) = @_;	1843	my ($self, $ob) = @_;
1498		1844
1499	return find "~" . $ob->name . "/" . $self->{path}	1845	return find "~" . $ob->name . "/" . $self->{path}
1500	if $self->per_player;	1846	if $self->per_player;
		1847
		1848	# return find "?party/" . $ob->name . "/" . $self->{path}
		1849	# if $self->per_party;
1501		1850
1502	$self	1851	$self
1503	}	1852	}
1504		1853
1505	# find and load all maps in the 3x3 area around a map	1854	# find and load all maps in the 3x3 area around a map
…		…
1616		1965
1617	sub reset_at {	1966	sub reset_at {
1618	my ($self) = @_;	1967	my ($self) = @_;
1619		1968
1620	# TODO: safety, remove and allow resettable per-player maps	1969	# TODO: safety, remove and allow resettable per-player maps
1621	return 1e99 if $self->isa ("ext::map_per_player");#d#
1622	return 1e99 if $self->{deny_reset};	1970	return 1e99 if $self->{deny_reset};
1623		1971
1624	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1972	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1625	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1973	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1626		1974
…		…
1637	my ($self) = @_;	1985	my ($self) = @_;
1638		1986
1639	my $lock = cf::lock_acquire "map_data:$self->{path}";	1987	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		1988
1641	return if $self->players;	1989	return if $self->players;
1642	return if $self->isa ("ext::map_per_player");#d#
1643		1990
1644	warn "resetting map ", $self->path;#d#	1991	warn "resetting map ", $self->path;
1645		1992
1646	$self->in_memory (cf::MAP_SWAPPED);	1993	$self->in_memory (cf::MAP_SWAPPED);
1647		1994
1648	# need to save uniques path	1995	# need to save uniques path
1649	unless ($self->{deny_save}) {	1996	unless ($self->{deny_save}) {
…		…
1681	$cf::MAP{$self->path} = $self;	2028	$cf::MAP{$self->path} = $self;
1682		2029
1683	$self->reset; # polite request, might not happen	2030	$self->reset; # polite request, might not happen
1684	}	2031	}
1685		2032
		2033	=item $maps = cf::map::tmp_maps
		2034
		2035	Returns an arrayref with all map paths of currently instantiated and saved
		2036	maps. May block.
		2037
		2038	=cut
		2039
		2040	sub tmp_maps() {
		2041	[
		2042	map {
		2043	utf8::decode $_;
		2044	/\.map$/
		2045	? normalise $_
		2046	: ()
		2047	} @{ aio_readdir $TMPDIR or [] }
		2048	]
		2049	}
		2050
		2051	=item $maps = cf::map::random_maps
		2052
		2053	Returns an arrayref with all map paths of currently instantiated and saved
		2054	random maps. May block.
		2055
		2056	=cut
		2057
		2058	sub random_maps() {
		2059	[
		2060	map {
		2061	utf8::decode $_;
		2062	/\.map$/
		2063	? normalise "?random/$_"
		2064	: ()
		2065	} @{ aio_readdir $RANDOMDIR or [] }
		2066	]
		2067	}
		2068
1686	=item cf::map::unique_maps	2069	=item cf::map::unique_maps
1687		2070
1688	Returns an arrayref of paths of all shared maps that have	2071	Returns an arrayref of paths of all shared maps that have
1689	instantiated unique items. May block.	2072	instantiated unique items. May block.
1690		2073
1691	=cut	2074	=cut
1692		2075
1693	sub unique_maps() {	2076	sub unique_maps() {
1694	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2077	[
1695	or return;	2078	map {
1696
1697	my @paths;
1698
1699	for (@$files) {
1700	utf8::decode $_;	2079	utf8::decode $_;
1701	next if /\.pst$/;	2080	/\.map$/
1702	next unless /^$PATH_SEP/o;	2081	? normalise $_
1703		2082	: ()
1704	push @paths, cf::map::normalise $_;	2083	} @{ aio_readdir $UNIQUEDIR or [] }
1705	}	2084	]
1706
1707	\@paths
1708	}	2085	}
1709		2086
1710	package cf;	2087	package cf;
1711		2088
1712	=back	2089	=back
…		…
1758		2135
1759	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2136	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1760		2137
1761	if ($self->{record_replies}) {	2138	if ($self->{record_replies}) {
1762	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2139	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2140
1763	} else {	2141	} else {
		2142	my $pl = $self->contr;
		2143
		2144	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2145	my $diag = $pl->{npc_dialog};
		2146	$diag->{pl}->ext_reply (
		2147	$diag->{id},
		2148	msgtype => "reply",
		2149	msg => $diag->{pl}->expand_cfpod ($msg),
		2150	add_topics => []
		2151	);
		2152
		2153	} else {
1764	$msg = $npc->name . " says: $msg" if $npc;	2154	$msg = $npc->name . " says: $msg" if $npc;
1765	$self->message ($msg, $flags);	2155	$self->message ($msg, $flags);
		2156	}
1766	}	2157	}
1767	}	2158	}
1768		2159
1769	=item $player_object->may ("access")	2160	=item $player_object->may ("access")
1770		2161
…		…
1818	$self->deactivate_recursive;	2209	$self->deactivate_recursive;
1819		2210
1820	return if UNIVERSAL::isa $self->map, "ext::map_link";	2211	return if UNIVERSAL::isa $self->map, "ext::map_link";
1821		2212
1822	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2213	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1823	if $self->map;	2214	if $self->map && $self->map->{path} ne "{link}";
1824		2215
1825	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2216	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1826	}	2217	}
1827		2218
1828	sub cf::object::player::leave_link {	2219	sub cf::object::player::leave_link {
1829	my ($self, $map, $x, $y) = @_;	2220	my ($self, $map, $x, $y) = @_;
		2221
		2222	return unless $self->contr->active;
1830		2223
1831	my $link_pos = delete $self->{_link_pos};	2224	my $link_pos = delete $self->{_link_pos};
1832		2225
1833	unless ($map) {	2226	unless ($map) {
1834	# restore original map position	2227	# restore original map position
…		…
1857		2250
1858	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2251	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1859	$self->enter_map ($map, $x, $y);	2252	$self->enter_map ($map, $x, $y);
1860	}	2253	}
1861		2254
1862	cf::player->attach (
1863	on_logout => sub {
1864	my ($pl) = @_;
1865
1866	# abort map switching before logout
1867	if ($pl->ob->{_link_pos}) {
1868	cf::sync_job {
1869	$pl->ob->leave_link
1870	};
1871	}
1872	},
1873	on_login => sub {
1874	my ($pl) = @_;
1875
1876	# try to abort aborted map switching on player login :)
1877	# should happen only on crashes
1878	if ($pl->ob->{_link_pos}) {
1879	$pl->ob->enter_link;
1880	(async {
1881	$pl->ob->reply (undef,
1882	"There was an internal problem at your last logout, "
1883	. "the server will try to bring you to your intended destination in a second.",
1884	cf::NDI_RED);
1885	# we need this sleep as the login has a concurrent enter_exit running
1886	# and this sleep increases chances of the player not ending up in scorn
1887	Coro::Timer::sleep 1;
1888	$pl->ob->leave_link;
1889	})->prio (2);
1890	}
1891	},
1892	);
1893
1894	=item $player_object->goto ($path, $x, $y)	2255	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1895		2256
		2257	Moves the player to the given map-path and coordinates by first freezing
		2258	her, loading and preparing them map, calling the provided $check callback
		2259	that has to return the map if sucecssful, and then unfreezes the player on
		2260	the new (success) or old (failed) map position.
		2261
1896	=cut	2262	=cut
		2263
		2264	our $GOTOGEN;
1897		2265
1898	sub cf::object::player::goto {	2266	sub cf::object::player::goto {
1899	my ($self, $path, $x, $y) = @_;	2267	my ($self, $path, $x, $y, $check) = @_;
		2268
		2269	# do generation counting so two concurrent goto's will be executed in-order
		2270	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1900		2271
1901	$self->enter_link;	2272	$self->enter_link;
1902		2273
1903	(async {	2274	(async {
1904	my $map = eval {	2275	my $map = eval {
1905	my $map = cf::map::find $path;	2276	my $map = cf::map::find $path;
		2277
		2278	if ($map) {
1906	$map = $map->customise_for ($self) if $map;	2279	$map = $map->customise_for ($self);
		2280	$map = $check->($map) if $check && $map;
		2281	} else {
		2282	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2283	}
		2284
1907	$map	2285	$map
		2286	};
		2287
		2288	if ($@) {
		2289	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	LOG llevError | logBacktrace, Carp::longmess $@;
1908	} or	2291	}
1909	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1910		2292
		2293	if ($gen == $self->{_goto_generation}) {
		2294	delete $self->{_goto_generation};
1911	$self->leave_link ($map, $x, $y);	2295	$self->leave_link ($map, $x, $y);
		2296	}
1912	})->prio (1);	2297	})->prio (1);
1913	}	2298	}
1914		2299
1915	=item $player_object->enter_exit ($exit_object)	2300	=item $player_object->enter_exit ($exit_object)
1916		2301
…		…
1955		2340
1956	$rmp->{random_seed} ||= $exit->random_seed;	2341	$rmp->{random_seed} ||= $exit->random_seed;
1957		2342
1958	my $data = cf::to_json $rmp;	2343	my $data = cf::to_json $rmp;
1959	my $md5 = Digest::MD5::md5_hex $data;	2344	my $md5 = Digest::MD5::md5_hex $data;
1960	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2345	my $meta = "$RANDOMDIR/$md5.meta";
1961		2346
1962	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2347	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1963	aio_write $fh, 0, (length $data), $data, 0;	2348	aio_write $fh, 0, (length $data), $data, 0;
1964	undef $fh;	2349	undef $fh;
1965	aio_rename "$meta~", $meta;	2350	aio_rename "$meta~", $meta;
…		…
1984	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2369	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1985	my $hp = $exit->stats->hp;	2370	my $hp = $exit->stats->hp;
1986	my $sp = $exit->stats->sp;	2371	my $sp = $exit->stats->sp;
1987		2372
1988	$self->enter_link;	2373	$self->enter_link;
		2374
		2375	# if exit is damned, update players death & WoR home-position
		2376	$self->contr->savebed ($slaying, $hp, $sp)
		2377	if $exit->flag (FLAG_DAMNED);
1989		2378
1990	(async {	2379	(async {
1991	$self->deactivate_recursive; # just to be sure	2380	$self->deactivate_recursive; # just to be sure
1992	unless (eval {	2381	unless (eval {
1993	$self->goto ($slaying, $hp, $sp);	2382	$self->goto ($slaying, $hp, $sp);
…		…
2021		2410
2022	utf8::encode $text;	2411	utf8::encode $text;
2023	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2412	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2024	}	2413	}
2025		2414
		2415	=item $client->send_msg ($color, $type, $msg, [extra...])
		2416
		2417	Send a drawinfo or msg packet to the client, formatting the msg for the
		2418	client if neccessary. C<$type> should be a string identifying the type of
		2419	the message, with C<log> being the default. If C<$color> is negative, suppress
		2420	the message unless the client supports the msg packet.
		2421
		2422	=cut
		2423
		2424	sub cf::client::send_msg {
		2425	my ($self, $color, $type, $msg, @extra) = @_;
		2426
		2427	$msg = $self->pl->expand_cfpod ($msg);
		2428
		2429	return unless @extra || length $msg;
		2430
		2431	if ($self->can_msg) {
		2432	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2433	} else {
		2434	# replace some tags by gcfclient-compatible ones
		2435	for ($msg) {
		2436	1 while
		2437	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2438	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2439	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2440	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2441	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2442	}
		2443
		2444	if ($color >= 0) {
		2445	if (0 && $msg =~ /\[/) {
		2446	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2447	} else {
		2448	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2449	$self->send_packet ("drawinfo $color $msg")
		2450	}
		2451	}
		2452	}
		2453	}
		2454
2026	=item $client->ext_event ($type, %msg)	2455	=item $client->ext_event ($type, %msg)
2027		2456
2028	Sends an exti event to the client.	2457	Sends an ext event to the client.
2029		2458
2030	=cut	2459	=cut
2031		2460
2032	sub cf::client::ext_event($$%) {	2461	sub cf::client::ext_event($$%) {
2033	my ($self, $type, %msg) = @_;	2462	my ($self, $type, %msg) = @_;
2034		2463
2035	$msg{msgtype} = "event_$type";	2464	$msg{msgtype} = "event_$type";
2036	$self->send_packet ("ext " . cf::to_json \%msg);	2465	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2037	}	2466	}
2038		2467
2039	=item $success = $client->query ($flags, "text", \&cb)	2468	=item $success = $client->query ($flags, "text", \&cb)
2040		2469
2041	Queues a query to the client, calling the given callback with	2470	Queues a query to the client, calling the given callback with
2042	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2471	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2043	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2472	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2044		2473
2045	Queries can fail, so check the return code. Or don't, as queries will become	2474	Queries can fail, so check the return code. Or don't, as queries will
2046	reliable at some point in the future.	2475	become reliable at some point in the future.
2047		2476
2048	=cut	2477	=cut
2049		2478
2050	sub cf::client::query {	2479	sub cf::client::query {
2051	my ($self, $flags, $text, $cb) = @_;	2480	my ($self, $flags, $text, $cb) = @_;
…		…
2059	utf8::encode $text;	2488	utf8::encode $text;
2060	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2489	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2061		2490
2062	$self->send_packet ($self->{query_queue}[0][0])	2491	$self->send_packet ($self->{query_queue}[0][0])
2063	if @{ $self->{query_queue} } == 1;	2492	if @{ $self->{query_queue} } == 1;
		2493
		2494	1
2064	}	2495	}
2065		2496
2066	cf::client->attach (	2497	cf::client->attach (
		2498	on_connect => sub {
		2499	my ($ns) = @_;
		2500
		2501	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2502	},
2067	on_reply => sub {	2503	on_reply => sub {
2068	my ($ns, $msg) = @_;	2504	my ($ns, $msg) = @_;
2069		2505
2070	# this weird shuffling is so that direct followup queries	2506	# this weird shuffling is so that direct followup queries
2071	# get handled first	2507	# get handled first
…		…
2083	} else {	2519	} else {
2084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2520	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2085	}	2521	}
2086	}	2522	}
2087	},	2523	},
		2524	on_exticmd => sub {
		2525	my ($ns, $buf) = @_;
		2526
		2527	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2528
		2529	if (ref $msg) {
		2530	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2531	if (my %reply = $cb->($ns, $msg)) {
		2532	$reply{msgid} = $msg->{msgid};
		2533	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2534	}
		2535	}
		2536	} else {
		2537	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2538	}
		2539
		2540	cf::override;
		2541	},
2088	);	2542	);
2089		2543
2090	=item $client->async (\&cb)	2544	=item $client->async (\&cb)
2091		2545
2092	Create a new coroutine, running the specified callback. The coroutine will	2546	Create a new coroutine, running the specified callback. The coroutine will
…		…
2141		2595
2142	=pod	2596	=pod
2143		2597
2144	The following functions and methods are available within a safe environment:	2598	The following functions and methods are available within a safe environment:
2145		2599
2146	cf::object contr pay_amount pay_player map	2600	cf::object
		2601	contr pay_amount pay_player map x y force_find force_add
		2602	insert remove
		2603
2147	cf::object::player player	2604	cf::object::player
2148	cf::player peaceful	2605	player
2149	cf::map trigger	2606
		2607	cf::player
		2608	peaceful
		2609
		2610	cf::map
		2611	trigger
2150		2612
2151	=cut	2613	=cut
2152		2614
2153	for (	2615	for (
2154	["cf::object" => qw(contr pay_amount pay_player map)],	2616	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2617	insert remove)],
2155	["cf::object::player" => qw(player)],	2618	["cf::object::player" => qw(player)],
2156	["cf::player" => qw(peaceful)],	2619	["cf::player" => qw(peaceful)],
2157	["cf::map" => qw(trigger)],	2620	["cf::map" => qw(trigger)],
2158	) {	2621	) {
2159	no strict 'refs';	2622	no strict 'refs';
…		…
2230	=back	2693	=back
2231		2694
2232	=cut	2695	=cut
2233		2696
2234	#############################################################################	2697	#############################################################################
2235
2236	=head2 EXTENSION DATABASE SUPPORT
2237
2238	Crossfire maintains a very simple database for extension use. It can
2239	currently store anything that can be serialised using Storable, which
2240	excludes objects.
2241
2242	The parameter C<$family> should best start with the name of the extension
2243	using it, it should be unique.
2244
2245	=over 4
2246
2247	=item $value = cf::db_get $family => $key
2248
2249	Returns a single value from the database.
2250
2251	=item cf::db_put $family => $key => $value
2252
2253	Stores the given C<$value> in the family.
2254
2255	=cut
2256
2257	our $DB;
2258
2259	sub db_init {
2260	unless ($DB) {
2261	$DB = BDB::db_create $DB_ENV;
2262
2263	cf::sync_job {
2264	eval {
2265	$DB->set_flags (BDB::CHKSUM);
2266
2267	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2268	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2269	cf::cleanup "db_open(db): $!" if $!;
2270	};
2271	cf::cleanup "db_open(db): $@" if $@;
2272	};
2273
2274	my $path = cf::localdir . "/database.pst";
2275	if (stat $path) {
2276	cf::sync_job {
2277	my $pst = Storable::retrieve $path;
2278
2279	cf::db_put (board => data => $pst->{board});
2280	cf::db_put (guildrules => data => $pst->{guildrules});
2281	cf::db_put (rent => balance => $pst->{rent}{balance});
2282	BDB::db_env_txn_checkpoint $DB_ENV;
2283
2284	unlink $path;
2285	};
2286	}
2287	}
2288	}
2289
2290	sub db_get($$) {
2291	my $key = "$_[0]/$_[1]";
2292
2293	cf::sync_job {
2294	BDB::db_get $DB, undef, $key, my $data;
2295
2296	$! ? ()
2297	: Compress::LZF::sthaw $data
2298	}
2299	}
2300
2301	sub db_put($$$) {
2302	BDB::dbreq_pri 4;
2303	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2304	}
2305
2306	#############################################################################
2307	# the server's init and main functions	2698	# the server's init and main functions
2308		2699
2309	sub load_facedata {	2700	sub load_facedata($) {
2310	my $path = sprintf "%s/facedata", cf::datadir;	2701	my ($path) = @_;
2311		2702
2312	warn "loading facedata from $path\n";	2703	warn "loading facedata from $path\n";
2313		2704
2314	my $facedata;	2705	my $facedata;
2315	0 < aio_load $path, $facedata	2706	0 < aio_load $path, $facedata
…		…
2356	}	2747	}
2357		2748
2358	1	2749	1
2359	}	2750	}
2360		2751
		2752	sub reload_regions {
		2753	load_resource_file "$MAPDIR/regions"
		2754	or die "unable to load regions file\n";
		2755	}
		2756
		2757	sub reload_facedata {
		2758	load_facedata "$DATADIR/facedata"
		2759	or die "unable to load facedata\n";
		2760	}
		2761
		2762	sub reload_archetypes {
		2763	load_resource_file "$DATADIR/archetypes"
		2764	or die "unable to load archetypes\n";
		2765	#d# NEED to laod twice to resolve forward references
		2766	# this really needs to be done in an extra post-pass
		2767	# (which needs to be synchronous, so solve it differently)
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	}
		2771
		2772	sub reload_treasures {
		2773	load_resource_file "$DATADIR/treasures"
		2774	or die "unable to load treasurelists\n";
		2775	}
		2776
2361	sub reload_resources {	2777	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2778	warn "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	2779
		2780	reload_regions;
2364	load_facedata	2781	reload_facedata;
2365	or die "unable to load facedata\n";#d#	2782	#reload_archetypes;#d#
		2783	reload_archetypes;
		2784	reload_treasures;
		2785
		2786	warn "finished reloading resource files\n";
2366	}	2787	}
2367		2788
2368	sub init {	2789	sub init {
2369	reload_resources;	2790	reload_resources;
2370	}	2791	}
2371		2792
2372	sub cfg_load {	2793	sub cfg_load {
2373	open my $fh, "<:utf8", cf::confdir . "/config"	2794	open my $fh, "<:utf8", "$CONFDIR/config"
2374	or return;	2795	or return;
2375		2796
2376	local $/;	2797	local $/;
2377	*CFG = YAML::Syck::Load <$fh>;	2798	*CFG = YAML::Syck::Load <$fh>;
2378		2799
…		…
2423	},	2844	},
2424	);	2845	);
2425	}	2846	}
2426	}	2847	}
2427		2848
		2849	sub write_runtime {
		2850	my $runtime = "$LOCALDIR/runtime";
		2851
		2852	# first touch the runtime file to show we are still running:
		2853	# the fsync below can take a very very long time.
		2854
		2855	IO::AIO::aio_utime $runtime, undef, undef;
		2856
		2857	my $guard = cf::lock_acquire "write_runtime";
		2858
		2859	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2860	or return;
		2861
		2862	my $value = $cf::RUNTIME + 90 + 10;
		2863	# 10 is the runtime save interval, for a monotonic clock
		2864	# 60 allows for the watchdog to kill the server.
		2865
		2866	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2867	and return;
		2868
		2869	# always fsync - this file is important
		2870	aio_fsync $fh
		2871	and return;
		2872
		2873	# touch it again to show we are up-to-date
		2874	aio_utime $fh, undef, undef;
		2875
		2876	close $fh
		2877	or return;
		2878
		2879	aio_rename "$runtime~", $runtime
		2880	and return;
		2881
		2882	warn "runtime file written.\n";
		2883
		2884	1
		2885	}
		2886
2428	sub emergency_save() {	2887	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	2888	my $freeze_guard = cf::freeze_mainloop;
2430		2889
2431	warn "enter emergency perl save\n";	2890	warn "enter emergency perl save\n";
2432		2891
…		…
2463		2922
2464	warn Carp::longmess "post_cleanup backtrace"	2923	warn Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	2924	if $make_core;
2466	}	2925	}
2467		2926
2468	sub reload() {	2927	sub do_reload_perl() {
2469	# can/must only be called in main	2928	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	2929	if ($Coro::current != $Coro::main) {
2471	warn "can only reload from main coroutine";	2930	warn "can only reload from main coroutine";
2472	return;	2931	return;
2473	}	2932	}
…		…
2507	%EXT_CORO = ();	2966	%EXT_CORO = ();
2508		2967
2509	warn "removing commands";	2968	warn "removing commands";
2510	%COMMAND = ();	2969	%COMMAND = ();
2511		2970
2512	warn "removing ext commands";	2971	warn "removing ext/exti commands";
2513	%EXTCMD = ();	2972	%EXTCMD = ();
		2973	%EXTICMD = ();
2514		2974
2515	warn "unloading/nuking all extensions";	2975	warn "unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {	2976	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";	2977	warn "... unloading $pkg";
2518		2978
…		…
2548	Symbol::delete_package "safe::$_"	3008	Symbol::delete_package "safe::$_"
2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3009	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2550		3010
2551	warn "unloading cf.pm \"a bit\"";	3011	warn "unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	3012	delete $INC{"cf.pm"};
		3013	delete $INC{"cf/pod.pm"};
2553		3014
2554	# don't, removes xs symbols, too,	3015	# don't, removes xs symbols, too,
2555	# and global variables created in xs	3016	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	3017	#Symbol::delete_package __PACKAGE__;
2557		3018
…		…
2572	warn "reattaching attachments to maps";	3033	warn "reattaching attachments to maps";
2573	reattach $_ for values %MAP;	3034	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	3035	warn "reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	3036	reattach $_ for values %PLAYER;
2576		3037
2577	warn "loading reloadable resources";
2578	reload_resources;
2579
2580	warn "leaving sync_job";	3038	warn "leaving sync_job";
2581		3039
2582	1	3040	1
2583	} or do {	3041	} or do {
2584	warn $@;	3042	warn $@;
…		…
2589	warn "reloaded";	3047	warn "reloaded";
2590	};	3048	};
2591		3049
2592	our $RELOAD_WATCHER; # used only during reload	3050	our $RELOAD_WATCHER; # used only during reload
2593		3051
		3052	sub reload_perl() {
		3053	# doing reload synchronously and two reloads happen back-to-back,
		3054	# coro crashes during coro_state_free->destroy here.
		3055
		3056	$RELOAD_WATCHER ||= Event->timer (
		3057	reentrant => 0,
		3058	after => 0,
		3059	data => WF_AUTOCANCEL,
		3060	cb => sub {
		3061	do_reload_perl;
		3062	undef $RELOAD_WATCHER;
		3063	},
		3064	);
		3065	}
		3066
2594	register_command "reload" => sub {	3067	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	3068	my ($who, $arg) = @_;
2596		3069
2597	if ($who->flag (FLAG_WIZ)) {	3070	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	3071	$who->message ("reloading server.");
2599		3072	async { reload_perl };
2600	# doing reload synchronously and two reloads happen back-to-back,
2601	# coro crashes during coro_state_free->destroy here.
2602
2603	$RELOAD_WATCHER ||= Event->timer (
2604	reentrant => 0,
2605	after => 0,
2606	data => WF_AUTOCANCEL,
2607	cb => sub {
2608	reload;
2609	undef $RELOAD_WATCHER;
2610	},
2611	);
2612	}	3073	}
2613	};	3074	};
2614		3075
2615	unshift @INC, $LIBDIR;	3076	unshift @INC, $LIBDIR;
2616		3077
2617	my $bug_warning = 0;	3078	my $bug_warning = 0;
2618		3079
		3080	our @WAIT_FOR_TICK;
		3081	our @WAIT_FOR_TICK_BEGIN;
		3082
		3083	sub wait_for_tick {
		3084	return unless $TICK_WATCHER->is_active;
		3085	return if $Coro::current == $Coro::main;
		3086
		3087	my $signal = new Coro::Signal;
		3088	push @WAIT_FOR_TICK, $signal;
		3089	$signal->wait;
		3090	}
		3091
		3092	sub wait_for_tick_begin {
		3093	return unless $TICK_WATCHER->is_active;
		3094	return if $Coro::current == $Coro::main;
		3095
		3096	my $signal = new Coro::Signal;
		3097	push @WAIT_FOR_TICK_BEGIN, $signal;
		3098	$signal->wait;
		3099	}
		3100
		3101	my $min = 1e6;#d#
		3102	my $avg = 10;
2619	$TICK_WATCHER = Event->timer (	3103	$TICK_WATCHER = Event->timer (
2620	reentrant => 0,	3104	reentrant => 0,
2621	parked => 1,	3105	parked => 1,
2622	prio => 0,	3106	prio => 0,
2623	at => $NEXT_TICK || $TICK,	3107	at => $NEXT_TICK || $TICK,
…		…
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3111	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	3112	unless ++$bug_warning > 10;
2629	return;	3113	return;
2630	}	3114	}
2631		3115
2632	$NOW = Event::time;	3116	$NOW = $tick_start = Event::time;
2633		3117
2634	cf::server_tick; # one server iteration	3118	cf::server_tick; # one server iteration
		3119
		3120	0 && sync_job {#d#
		3121	for(1..10) {
		3122	my $t = Event::time;
		3123	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3124	or die;
		3125
		3126	$map->width (50);
		3127	$map->height (50);
		3128	$map->alloc;
		3129	$map->_load_objects ("/tmp/x.map", 1);
		3130	my $t = Event::time - $t;
		3131
		3132	#next unless $t < 0.0013;#d#
		3133	if ($t < $min) {
		3134	$min = $t;
		3135	}
		3136	$avg = $avg * 0.99 + $t * 0.01;
		3137	}
		3138	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3139	exit 0;
		3140	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3141	};
		3142
2635	$RUNTIME += $TICK;	3143	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;	3144	$NEXT_TICK += $TICK;
2637		3145
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	3147	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2641	write_runtime	3149	write_runtime
2642	or warn "ERROR: unable to write runtime file: $!";	3150	or warn "ERROR: unable to write runtime file: $!";
2643	};	3151	};
2644	}	3152	}
2645		3153
2646	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648
2649	# my $AFTER = Event::time;	3154	# my $AFTER = Event::time;
2650	# warn $AFTER - $NOW;#d#	3155	# warn $AFTER - $NOW;#d#
2651		3156
		3157	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3158	$sig->send;
		3159	}
		3160	while (my $sig = shift @WAIT_FOR_TICK) {
		3161	$sig->send;
		3162	}
		3163
		3164	$NOW = Event::time;
		3165
2652	# if we are delayed by four ticks or more, skip them all	3166	# if we are delayed by four ticks or more, skip them all
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3167	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2654		3168
2655	$TICK_WATCHER->at ($NEXT_TICK);	3169	$TICK_WATCHER->at ($NEXT_TICK);
2656	$TICK_WATCHER->start;	3170	$TICK_WATCHER->start;
		3171
		3172	$LOAD = ($NOW - $tick_start) / $TICK;
		3173	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3174
		3175	_post_tick;
		3176
		3177
2657	},	3178	},
2658	);	3179	);
2659		3180
2660	{	3181	{
2661	BDB::max_poll_time $TICK * 0.1;	3182	BDB::max_poll_time $TICK * 0.1;
…		…
2689		3210
2690	cf::sync_job {	3211	cf::sync_job {
2691	eval {	3212	eval {
2692	BDB::db_env_open	3213	BDB::db_env_open
2693	$DB_ENV,	3214	$DB_ENV,
2694	$BDB_ENV_DIR,	3215	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3216	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3217	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	3218	0666;
2698		3219
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3220	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700		3221
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3222	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702	$DB_ENV->set_lk_detect;	3223	$DB_ENV->set_lk_detect;
2703	};	3224	};
2704		3225
…		…
2720	prio => 6,	3241	prio => 6,
2721	cb => \&IO::AIO::poll_cb,	3242	cb => \&IO::AIO::poll_cb,
2722	);	3243	);
2723	}	3244	}
2724		3245
		3246	my $_log_backtrace;
		3247
		3248	sub _log_backtrace {
		3249	my ($msg, @addr) = @_;
		3250
		3251	$msg =~ s/\n//;
		3252
		3253	# limit the # of concurrent backtraces
		3254	if ($_log_backtrace < 2) {
		3255	++$_log_backtrace;
		3256	async {
		3257	my @bt = fork_call {
		3258	@addr = map { sprintf "%x", $_ } @addr;
		3259	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3260	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3261	or die "addr2line: $!";
		3262
		3263	my @funcs;
		3264	my @res = <$fh>;
		3265	chomp for @res;
		3266	while (@res) {
		3267	my ($func, $line) = splice @res, 0, 2, ();
		3268	push @funcs, "[$func] $line";
		3269	}
		3270
		3271	@funcs
		3272	};
		3273
		3274	LOG llevInfo, "[ABT] $msg\n";
		3275	LOG llevInfo, "[ABT] $_\n" for @bt;
		3276	--$_log_backtrace;
		3277	};
		3278	} else {
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] [suppressed]\n";
		3281	}
		3282	}
		3283
		3284	# load additional modules
		3285	use cf::pod;
		3286
2725	END { cf::emergency_save }	3287	END { cf::emergency_save }
2726		3288
2727	1	3289	1
2728		3290

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