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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.225 by root, Wed Mar 14 00:04:58 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro 3.3;	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
18	use Coro::AIO;	20	use Coro::AIO;
19		21
		22	use BDB ();
		23	use Data::Dumper;
20	use Digest::MD5;	24	use Digest::MD5;
21	use Fcntl;	25	use Fcntl;
22	use IO::AIO 2.31 ();	26	use IO::AIO 2.32 ();
23	use YAML::Syck ();	27	use YAML::Syck ();
24	use Time::HiRes;	28	use Time::HiRes;
		29	use Compress::LZF;
25		30
		31	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		32	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	33	$Event::Eval = 1; # no idea why this is required, but it is
		34
		35	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		36
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	37	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	38	$YAML::Syck::ImplicitUnicode = 1;
30		39
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	40	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		41
35	our %COMMAND = ();	42	our %COMMAND = ();
36	our %COMMAND_TIME = ();	43	our %COMMAND_TIME = ();
		44
		45	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	46	our %EXTCMD = ();
		47	our %EXT_CORO = (); # coroutines bound to extensions
		48	our %EXT_MAP = (); # pluggable maps
38		49
		50	our $RELOAD; # number of reloads so far
39	our @EVENT;	51	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	52	our $LIBDIR = datadir . "/ext";
41		53
42	our $TICK = MAX_TIME * 1e-6;	54	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	55	our $TICK_WATCHER;
		56	our $AIO_POLL_WATCHER;
		57	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	58	our $NEXT_TICK;
45	our $NOW;	59	our $NOW;
		60	our $USE_FSYNC = 1; # use fsync to write maps - default off
		61
		62	our $BDB_POLL_WATCHER;
		63	our $DB_ENV;
46		64
47	our %CFG;	65	our %CFG;
48		66
49	our $UPTIME; $UPTIME ||= time;	67	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	68	our $RUNTIME;
51		69
		70	our %PLAYER; # all users
52	our %MAP; # all maps	71	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	72	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	73	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	74	our $BDB_ENV_DIR = cf::localdir . "/db";
		75
		76	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		77	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		78
		79	# used to convert map paths into valid unix filenames by replacing / by ∕
		80	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		81
58	binmode STDOUT;	82	binmode STDOUT;
59	binmode STDERR;	83	binmode STDERR;
60		84
61	# read virtual server time, if available	85	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	92	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	93	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	94	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	95	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	96	mkdir $RANDOM_MAPS;
		97	mkdir $BDB_ENV_DIR;
73		98
74	# a special map that is always available	99	our $EMERGENCY_POSITION;
75	our $LINK_MAP;	100
		101	sub cf::map::normalise;
76		102
77	#############################################################################	103	#############################################################################
78		104
79	=head2 GLOBAL VARIABLES	105	=head2 GLOBAL VARIABLES
80		106
…		…
104		130
105	=item %cf::CFG	131	=item %cf::CFG
106		132
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	133	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	134	from wherever your confdir points to.
		135
		136	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		137
		138	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		139	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		140	processing has been done. Call C<< ->wait >> on them to maximise the
		141	window of cpu time available, or simply to synchronise to the server tick.
109		142
110	=back	143	=back
111		144
112	=cut	145	=cut
113		146
…		…
117	utf8::encode $msg;	150	utf8::encode $msg;
118		151
119	$msg .= "\n"	152	$msg .= "\n"
120	unless $msg =~ /\n$/;	153	unless $msg =~ /\n$/;
121		154
122	LOG llevError, "cfperl: $msg";	155	LOG llevError, $msg;
123	};	156	};
124	}	157	}
125		158
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	159	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	160	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		178
146	$Event::DIED = sub {	179	$Event::DIED = sub {
147	warn "error in event callback: @_";	180	warn "error in event callback: @_";
148	};	181	};
149		182
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	183	=head2 UTILITY FUNCTIONS
155		184
156	=over 4	185	=over 4
157		186
		187	=item dumpval $ref
		188
158	=cut	189	=cut
		190
		191	sub dumpval {
		192	eval {
		193	local $SIG{__DIE__};
		194	my $d;
		195	if (1) {
		196	$d = new Data::Dumper([$_[0]], ["*var"]);
		197	$d->Terse(1);
		198	$d->Indent(2);
		199	$d->Quotekeys(0);
		200	$d->Useqq(1);
		201	#$d->Bless(...);
		202	$d->Seen($_[1]) if @_ > 1;
		203	$d = $d->Dump();
		204	}
		205	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		206	$d
		207	} || "[unable to dump $_[0]: '$@']";
		208	}
159		209
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	210	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		211
162	=item $ref = cf::from_json $json	212	=item $ref = cf::from_json $json
163		213
…		…
178		228
179	sub to_json($) {	229	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	230	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	231	JSON::Syck::Dump $_[0]
182	}	232	}
		233
		234	=item cf::lock_wait $string
		235
		236	Wait until the given lock is available. See cf::lock_acquire.
		237
		238	=item my $lock = cf::lock_acquire $string
		239
		240	Wait until the given lock is available and then acquires it and returns
		241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		242	for example when the coroutine gets canceled), the lock is automatically
		243	returned.
		244
		245	Lock names should begin with a unique identifier (for example, cf::map::find
		246	uses map_find and cf::map::load uses map_load).
		247
		248	=cut
		249
		250	our %LOCK;
		251
		252	sub lock_wait($) {
		253	my ($key) = @_;
		254
		255	# wait for lock, if any
		256	while ($LOCK{$key}) {
		257	push @{ $LOCK{$key} }, $Coro::current;
		258	Coro::schedule;
		259	}
		260	}
		261
		262	sub lock_acquire($) {
		263	my ($key) = @_;
		264
		265	# wait, to be sure we are not locked
		266	lock_wait $key;
		267
		268	$LOCK{$key} = [];
		269
		270	Coro::guard {
		271	# wake up all waiters, to be on the safe side
		272	$_->ready for @{ delete $LOCK{$key} };
		273	}
		274	}
		275
		276	sub freeze_mainloop {
		277	return unless $TICK_WATCHER->is_active;
		278
		279	my $guard = Coro::guard {
		280	$TICK_WATCHER->start;
		281	};
		282	$TICK_WATCHER->stop;
		283	$guard
		284	}
		285
		286	=item cf::async { BLOCK }
		287
		288	Currently the same as Coro::async_pool, meaning you cannot use
		289	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		290	thing you are allowed to do is call C<prio> on it.
		291
		292	=cut
		293
		294	BEGIN { *async = \&Coro::async_pool }
183		295
184	=item cf::sync_job { BLOCK }	296	=item cf::sync_job { BLOCK }
185		297
186	The design of crossfire+ requires that the main coro ($Coro::main) is	298	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	299	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	307	=cut
196		308
197	sub sync_job(&) {	309	sub sync_job(&) {
198	my ($job) = @_;	310	my ($job) = @_;
199		311
200	my $busy = 1;
201	my @res;
202
203	# TODO: use suspend/resume instead
204	local $FREEZE = 1;
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };
208	warn $@ if $@;
209	undef $busy;
210	};
211
212	if ($Coro::current == $Coro::main) {	312	if ($Coro::current == $Coro::main) {
		313	# this is the main coro, too bad, we have to block
		314	# till the operation succeeds, freezing the server :/
		315
		316	# TODO: use suspend/resume instead
		317	# (but this is cancel-safe)
		318	my $freeze_guard = freeze_mainloop;
		319
		320	my $busy = 1;
		321	my @res;
		322
		323	(async {
		324	@res = eval { $job->() };
		325	warn $@ if $@;
		326	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	327	})->prio (Coro::PRIO_MAX);
		328
214	while ($busy) {	329	while ($busy) {
215	Coro::cede_notself;	330	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	331	}
		332
		333	wantarray ? @res : $res[0]
218	} else {	334	} else {
219	$coro->join;	335	# we are in another coroutine, how wonderful, everything just works
		336
		337	$job->()
220	}	338	}
221
222	wantarray ? @res : $res[0]
223	}	339	}
224		340
225	=item $coro = cf::coro { BLOCK }	341	=item $coro = cf::async_ext { BLOCK }
226		342
227	Creates and returns a new coro. This coro is automcatially being canceled	343	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	344	extension calling this is being unloaded.
229		345
230	=cut	346	=cut
231		347
232	sub coro(&) {	348	sub async_ext(&) {
233	my $cb = shift;	349	my $cb = shift;
234		350
235	my $coro; $coro = async {	351	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		352
242	$coro->on_destroy (sub {	353	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	354	delete $EXT_CORO{$coro+0};
244	});	355	});
245	$EXT_CORO{$coro+0} = $coro;	356	$EXT_CORO{$coro+0} = $coro;
246		357
247	$coro	358	$coro
248	}	359	}
249		360
250	sub write_runtime {	361	sub write_runtime {
		362	my $guard = cf::lock_acquire "write_runtime";
		363
251	my $runtime = cf::localdir . "/runtime";	364	my $runtime = cf::localdir . "/runtime";
252		365
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	366	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254	or return;	367	or return;
255		368
256	my $value = $cf::RUNTIME;	369	my $value = $cf::RUNTIME + 90 + 10;
		370	# 10 is the runtime save interval, for a monotonic clock
		371	# 60 allows for the watchdog to kill the server.
		372
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0	373	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	374	and return;
259		375
		376	# always fsync - this file is important
260	aio_fsync $fh	377	aio_fsync $fh
261	and return;	378	and return;
262		379
263	close $fh	380	close $fh
264	or return;	381	or return;
…		…
270	}	387	}
271		388
272	=back	389	=back
273		390
274	=cut	391	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	$self->{random} = cf::from_json $path;
287	} else {
288	if ($path =~ s{^~([^/]+)?}{}) {
289	$self->{user_rel} = 1;
290
291	if (defined $1) {
292	$self->{user} = $1;
293	} elsif ($base =~ m{^~([^/]+)/}) {
294	$self->{user} = $1;
295	} else {
296	warn "cannot resolve user-relative path without user <$path,$base>\n";
297	}
298	} elsif ($path =~ /^\//) {
299	# already absolute
300	} else {
301	$base =~ s{[^/]+/?$}{};
302	return $class->new ("$base/$path");
303	}
304
305	for ($path) {
306	redo if s{/\.?/}{/};
307	redo if s{/[^/]+/\.\./}{/};
308	}
309	}
310
311	$self->{path} = $path;
312
313	$self
314	}
315
316	# the name / primary key / in-game path
317	sub as_string {
318	my ($self) = @_;
319
320	$self->{user_rel} ? "~$self->{user}$self->{path}"
321	: $self->{random} ? "?random/$self->{path}"
322	: $self->{path}
323	}
324
325	# the displayed name, this is a one way mapping
326	sub visible_name {
327	my ($self) = @_;
328
329	$self->{random} ? "?random/$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}/$self->{random}{dungeon_level}"
330	: $self->as_string
331	}
332
333	# escape the /'s in the path
334	sub _escaped_path {
335	# ∕ is U+2215
336	(my $path = $_[0]{path}) =~ s/\//∕/g;
337	$path
338	}
339
340	# the original (read-only) location
341	sub load_path {
342	my ($self) = @_;
343
344	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
345	}
346
347	# the temporary/swap location
348	sub save_path {
349	my ($self) = @_;
350
351	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
352	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, Digest::MD5::md5_hex $self->{path}
353	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
354	}
355
356	# the unique path, might be eq to save_path
357	sub uniq_path {
358	my ($self) = @_;
359
360	$self->{user_rel} || $self->{random}
361	? undef
362	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
363	}
364
365	# return random map parameters, or undef
366	sub random_map_params {
367	my ($self) = @_;
368
369	$self->{random}
370	}
371
372	# this is somewhat ugly, but style maps do need special treatment
373	sub is_style_map {
374	$_[0]{path} =~ m{^/styles/}
375	}
376
377	package cf;
378		392
379	#############################################################################	393	#############################################################################
380		394
381	=head2 ATTACHABLE OBJECTS	395	=head2 ATTACHABLE OBJECTS
382		396
…		…
508	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
509	our @CB_MAP = ();	523	our @CB_MAP = ();
510		524
511	my %attachment;	525	my %attachment;
512		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
513	sub _attach_cb($$$$) {	533	sub _attach_cb($$$$) {
514	my ($registry, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
515		535
516	use sort 'stable';	536	use sort 'stable';
517		537
…		…
688	# object support	708	# object support
689		709
690	sub reattach {	710	sub reattach {
691	# basically do the same as instantiate, without calling instantiate	711	# basically do the same as instantiate, without calling instantiate
692	my ($obj) = @_;	712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
693		715
694	my $registry = $obj->registry;	716	my $registry = $obj->registry;
695		717
696	@$registry = ();	718	@$registry = ();
697		719
…		…
744	$filename, length $$rdata, scalar @$objs;	766	$filename, length $$rdata, scalar @$objs;
745		767
746	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
747	chmod SAVE_MODE, $fh;	769	chmod SAVE_MODE, $fh;
748	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
749	aio_fsync $fh;	771	aio_fsync $fh if $cf::USE_FSYNC;
750	close $fh;	772	close $fh;
751		773
752	if (@$objs) {	774	if (@$objs) {
753	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
754	chmod SAVE_MODE, $fh;	776	chmod SAVE_MODE, $fh;
755	my $data = Storable::nfreeze { version => 1, objs => $objs };	777	my $data = Storable::nfreeze { version => 1, objs => $objs };
756	aio_write $fh, 0, (length $data), $data, 0;	778	aio_write $fh, 0, (length $data), $data, 0;
757	aio_fsync $fh;	779	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	780	close $fh;
759	aio_rename "$filename.pst~", "$filename.pst";	781	aio_rename "$filename.pst~", "$filename.pst";
760	}	782	}
761	} else {	783	} else {
762	aio_unlink "$filename.pst";	784	aio_unlink "$filename.pst";
…		…
790	or return;	812	or return;
791		813
792	unless (aio_stat "$filename.pst") {	814	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	815	(aio_load "$filename.pst", $av) >= 0
794	or return;	816	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	817	$av = eval { (Storable::thaw $av)->{objs} };
796	}	818	}
797		819
		820	warn sprintf "loading %s (%d)\n",
		821	$filename, length $data, scalar @{$av || []};#d#
798	return ($data, $av);	822	return ($data, $av);
799	}	823	}
800		824
801	#############################################################################	825	#############################################################################
802	# command handling &c	826	# command handling &c
…		…
827	=cut	851	=cut
828		852
829	sub register_extcmd {	853	sub register_extcmd {
830	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
831		855
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	856	$EXTCMD{$name} = $cb;
836	}	857	}
837		858
838	cf::player->attach (	859	cf::player->attach (
839	on_command => sub {	860	on_command => sub {
840	my ($pl, $name, $params) = @_;	861	my ($pl, $name, $params) = @_;
…		…
853		874
854	my $msg = eval { from_json $buf };	875	my $msg = eval { from_json $buf };
855		876
856	if (ref $msg) {	877	if (ref $msg) {
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	879	if (my %reply = $cb->($pl, $msg)) {
859	$pl->ext_reply ($msg->{msgid}, %reply);	880	$pl->ext_reply ($msg->{msgid}, %reply);
860	}	881	}
861	}	882	}
862	} else {	883	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
865		886
866	cf::override;	887	cf::override;
867	},	888	},
868	);	889	);
869		890
870	sub register {
871	my ($base, $pkg) = @_;
872
873	#TODO
874	}
875
876	sub load_extension {	891	sub load_extension {
877	my ($path) = @_;	892	my ($path) = @_;
878		893
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
880	my $base = $1;	895	my $base = $1;
881	my $pkg = $1;	896	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
884		899
885	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
886		901
887	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
888	or die "$path: $!";	903	or die "$path: $!";
889		904
890	my $source =	905	my $source =
891	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
894	. "\n};\n1";	909	. "\n};\n1";
895		910
896	eval $source	911	unless (eval $source) {
897	or die $@ ? "$path: $@\n"	912	my $msg = $@ ? "$path: $@\n"
898	: "extension disabled.\n";	913	: "extension disabled.\n";
899		914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
900	push @exts, $pkg;	915	warn $@;
901	$ext_pkg{$base} = $pkg;	916	warn "mandatory extension failed to load, exiting.\n";
902		917	exit 1;
903	# no strict 'refs';	918	}
904	# @{"$pkg\::ISA"} = ext::;	919	die $@;
905
906	register $base, $pkg;
907	}
908
909	sub unload_extension {
910	my ($pkg) = @_;
911
912	warn "removing extension $pkg\n";
913
914	# remove hooks
915	#TODO
916	# for my $idx (0 .. $#PLUGIN_EVENT) {
917	# delete $hook[$idx]{$pkg};
918	# }	920	}
919		921
920	# remove commands	922	push @EXTS, $pkg;
921	for my $name (keys %COMMAND) {
922	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
923
924	if (@cb) {
925	$COMMAND{$name} = \@cb;
926	} else {
927	delete $COMMAND{$name};
928	}
929	}
930
931	# remove extcmds
932	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
933	delete $EXTCMD{$name};
934	}
935
936	if (my $cb = $pkg->can ("unload")) {
937	eval {
938	$cb->($pkg);
939	1
940	} or warn "$pkg unloaded, but with errors: $@";
941	}
942
943	Symbol::delete_package $pkg;
944	}	923	}
945		924
946	sub load_extensions {	925	sub load_extensions {
947	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	927	next unless -r $ext;
…		…
952	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
953	}	932	}
954	}	933	}
955		934
956	#############################################################################	935	#############################################################################
957	# load/save/clean perl data associated with a map
958		936
959	*cf::mapsupport::on_clean = sub {	937	=head2 CORE EXTENSIONS
		938
		939	Functions and methods that extend core crossfire objects.
		940
		941	=cut
		942
		943	package cf::player;
		944
		945	use Coro::AIO;
		946
		947	=head3 cf::player
		948
		949	=over 4
		950
		951	=item cf::player::find $login
		952
		953	Returns the given player object, loading it if necessary (might block).
		954
		955	=cut
		956
		957	sub playerdir($) {
		958	cf::localdir
		959	. "/"
		960	. cf::playerdir
		961	. "/"
		962	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		963	}
		964
		965	sub path($) {
		966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		967
		968	(playerdir $login) . "/$login.pl"
		969	}
		970
		971	sub find_active($) {
		972	$cf::PLAYER{$_[0]}
		973	and $cf::PLAYER{$_[0]}->active
		974	and $cf::PLAYER{$_[0]}
		975	}
		976
		977	sub exists($) {
		978	my ($login) = @_;
		979
		980	$cf::PLAYER{$login}
		981	or cf::sync_job { !aio_stat path $login }
		982	}
		983
		984	sub find($) {
		985	return $cf::PLAYER{$_[0]} || do {
		986	my $login = $_[0];
		987
		988	my $guard = cf::lock_acquire "user_find:$login";
		989
		990	$cf::PLAYER{$_[0]} || do {
		991	my $pl = load_pl path $login
		992	or return;
		993	$cf::PLAYER{$login} = $pl
		994	}
		995	}
		996	}
		997
		998	sub save($) {
		999	my ($pl) = @_;
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	my $path = path $pl;
		1004	my $guard = cf::lock_acquire "user_save:$path";
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	aio_mkdir playerdir $pl, 0770;
		1009	$pl->{last_save} = $cf::RUNTIME;
		1010
		1011	$pl->save_pl ($path);
		1012	Coro::cede;
		1013	}
		1014
		1015	sub new($) {
		1016	my ($login) = @_;
		1017
		1018	my $self = create;
		1019
		1020	$self->ob->name ($login);
		1021	$self->{deny_save} = 1;
		1022
		1023	$cf::PLAYER{$login} = $self;
		1024
		1025	$self
		1026	}
		1027
		1028	=item $pl->quit_character
		1029
		1030	Nukes the player without looking back. If logged in, the connection will
		1031	be destroyed. May block for a long time.
		1032
		1033	=cut
		1034
		1035	sub quit_character {
		1036	my ($pl) = @_;
		1037
		1038	my $name = $pl->ob->name;
		1039
		1040	$pl->{deny_save} = 1;
		1041	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1042
		1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1044	$pl->deactivate;
		1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1046	$pl->ns->destroy if $pl->ns;
		1047
		1048	my $path = playerdir $pl;
		1049	my $temp = "$path~$cf::RUNTIME~deleting~";
		1050	aio_rename $path, $temp;
		1051	delete $cf::PLAYER{$pl->ob->name};
		1052	$pl->destroy;
		1053
		1054	my $prefix = qr<^~\Q$name\E/>;
		1055
		1056	# nuke player maps
		1057	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1058
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item $pl->kick
		1063
		1064	Kicks a player out of the game. This destroys the connection.
		1065
		1066	=cut
		1067
		1068	sub kick {
		1069	my ($pl, $kicker) = @_;
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1072	$pl->killer ("kicked");
		1073	$pl->ns->destroy;
		1074	}
		1075
		1076	=item cf::player::list_logins
		1077
		1078	Returns am arrayref of all valid playernames in the system, can take a
		1079	while and may block, so not sync_job-capable, ever.
		1080
		1081	=cut
		1082
		1083	sub list_logins {
		1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1085	or return [];
		1086
		1087	my @logins;
		1088
		1089	for my $login (@$dirs) {
		1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1091	aio_read $fh, 0, 512, my $buf, 0 or next;
		1092	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1093
		1094	utf8::decode $login;
		1095	push @logins, $login;
		1096	}
		1097
		1098	\@logins
		1099	}
		1100
		1101	=item $player->maps
		1102
		1103	Returns an arrayref of map paths that are private for this
		1104	player. May block.
		1105
		1106	=cut
		1107
		1108	sub maps($) {
		1109	my ($pl) = @_;
		1110
		1111	$pl = ref $pl ? $pl->ob->name : $pl;
		1112
		1113	my $files = aio_readdir playerdir $pl
		1114	or return;
		1115
		1116	my @paths;
		1117
		1118	for (@$files) {
		1119	utf8::decode $_;
		1120	next if /\.(?:pl|pst)$/;
		1121	next unless /^$PATH_SEP/o;
		1122
		1123	push @paths, cf::map::normalise "~$pl/$_";
		1124	}
		1125
		1126	\@paths
		1127	}
		1128
		1129	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1130
		1131	Sends an ext reply to the player.
		1132
		1133	=cut
		1134
		1135	sub ext_reply($$$%) {
		1136	my ($self, $id, %msg) = @_;
		1137
		1138	$msg{msgid} = $id;
		1139
		1140	$self->send ("ext " . cf::to_json \%msg);
		1141	}
		1142
		1143	package cf;
		1144
		1145	=back
		1146
		1147
		1148	=head3 cf::map
		1149
		1150	=over 4
		1151
		1152	=cut
		1153
		1154	package cf::map;
		1155
		1156	use Fcntl;
		1157	use Coro::AIO;
		1158
		1159	use overload
		1160	'""' => \&as_string,
		1161	fallback => 1;
		1162
		1163	our $MAX_RESET = 3600;
		1164	our $DEFAULT_RESET = 3000;
		1165
		1166	sub generate_random_map {
		1167	my ($self, $rmp) = @_;
		1168	# mit "rum" bekleckern, nicht
		1169	$self->_create_random_map (
		1170	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1171	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1172	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1173	$rmp->{exit_on_final_map},
		1174	$rmp->{xsize}, $rmp->{ysize},
		1175	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1176	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1177	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1178	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1179	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1180	(cf::region::find $rmp->{region}), $rmp->{custom}
		1181	)
		1182	}
		1183
		1184	=item cf::map->register ($regex, $prio)
		1185
		1186	Register a handler for the map path matching the given regex at the
		1187	givne priority (higher is better, built-in handlers have priority 0, the
		1188	default).
		1189
		1190	=cut
		1191
		1192	sub register {
		1193	my (undef, $regex, $prio) = @_;
		1194	my $pkg = caller;
		1195
		1196	no strict;
		1197	push @{"$pkg\::ISA"}, __PACKAGE__;
		1198
		1199	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1200	}
		1201
		1202	# also paths starting with '/'
		1203	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1204
		1205	sub thawer_merge {
		1206	my ($self, $merge) = @_;
		1207
		1208	# we have to keep some variables in memory intact
		1209	local $self->{path};
		1210	local $self->{load_path};
		1211	local $self->{deny_save};
		1212	local $self->{deny_reset};
		1213
		1214	$self->SUPER::thawer_merge ($merge);
		1215	}
		1216
		1217	sub normalise {
		1218	my ($path, $base) = @_;
		1219
		1220	$path = "$path"; # make sure its a string
		1221
		1222	$path =~ s/\.map$//;
		1223
		1224	# map plan:
		1225	#
		1226	# /! non-realised random map exit (special hack!)
		1227	# {... are special paths that are not being touched
		1228	# ?xxx/... are special absolute paths
		1229	# ?random/... random maps
		1230	# /... normal maps
		1231	# ~user/... per-player map of a specific user
		1232
		1233	$path =~ s/$PATH_SEP/\//go;
		1234
		1235	# treat it as relative path if it starts with
		1236	# something that looks reasonable
		1237	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1238	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1239
		1240	$base =~ s{[^/]+/?$}{};
		1241	$path = "$base/$path";
		1242	}
		1243
		1244	for ($path) {
		1245	redo if s{//}{/};
		1246	redo if s{/\.?/}{/};
		1247	redo if s{/[^/]+/\.\./}{/};
		1248	}
		1249
		1250	$path
		1251	}
		1252
		1253	sub new_from_path {
		1254	my (undef, $path, $base) = @_;
		1255
		1256	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1257
		1258	$path = normalise $path, $base;
		1259
		1260	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1261	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1262	my $self = bless cf::map::new, $pkg;
		1263	$self->{path} = $path; $self->path ($path);
		1264	$self->init; # pass $1 etc.
		1265	return $self;
		1266	}
		1267	}
		1268
		1269	Carp::carp "unable to resolve path '$path' (base '$base').";
		1270	()
		1271	}
		1272
		1273	sub init {
		1274	my ($self) = @_;
		1275
		1276	$self
		1277	}
		1278
		1279	sub as_string {
		1280	my ($self) = @_;
		1281
		1282	"$self->{path}"
		1283	}
		1284
		1285	# the displayed name, this is a one way mapping
		1286	sub visible_name {
		1287	&as_string
		1288	}
		1289
		1290	# the original (read-only) location
		1291	sub load_path {
		1292	my ($self) = @_;
		1293
		1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1295	}
		1296
		1297	# the temporary/swap location
		1298	sub save_path {
		1299	my ($self) = @_;
		1300
		1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1303	}
		1304
		1305	# the unique path, undef == no special unique path
		1306	sub uniq_path {
		1307	my ($self) = @_;
		1308
		1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1311	}
		1312
		1313	# and all this just because we cannot iterate over
		1314	# all maps in C++...
		1315	sub change_all_map_light {
		1316	my ($change) = @_;
		1317
		1318	$_->change_map_light ($change)
		1319	for grep $_->outdoor, values %cf::MAP;
		1320	}
		1321
		1322	sub unlink_save {
		1323	my ($self) = @_;
		1324
		1325	utf8::encode (my $save = $self->save_path);
		1326	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1327	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1328	}
		1329
		1330	sub load_header_from($) {
		1331	my ($self, $path) = @_;
		1332
		1333	utf8::encode $path;
		1334	#aio_open $path, O_RDONLY, 0
		1335	# or return;
		1336
		1337	$self->_load_header ($path)
		1338	or return;
		1339
		1340	$self->{load_path} = $path;
		1341
		1342	1
		1343	}
		1344
		1345	sub load_header_orig {
		1346	my ($self) = @_;
		1347
		1348	$self->load_header_from ($self->load_path)
		1349	}
		1350
		1351	sub load_header_temp {
		1352	my ($self) = @_;
		1353
		1354	$self->load_header_from ($self->save_path)
		1355	}
		1356
		1357	sub prepare_temp {
		1358	my ($self) = @_;
		1359
		1360	$self->last_access ((delete $self->{last_access})
		1361	|| $cf::RUNTIME); #d#
		1362	# safety
		1363	$self->{instantiate_time} = $cf::RUNTIME
		1364	if $self->{instantiate_time} > $cf::RUNTIME;
		1365	}
		1366
		1367	sub prepare_orig {
		1368	my ($self) = @_;
		1369
		1370	$self->{load_original} = 1;
		1371	$self->{instantiate_time} = $cf::RUNTIME;
		1372	$self->last_access ($cf::RUNTIME);
		1373	$self->instantiate;
		1374	}
		1375
		1376	sub load_header {
		1377	my ($self) = @_;
		1378
		1379	if ($self->load_header_temp) {
		1380	$self->prepare_temp;
		1381	} else {
		1382	$self->load_header_orig
		1383	or return;
		1384	$self->prepare_orig;
		1385	}
		1386
		1387	1
		1388	}
		1389
		1390	sub find;
		1391	sub find {
		1392	my ($path, $origin) = @_;
		1393
		1394	$path = normalise $path, $origin && $origin->path;
		1395
		1396	cf::lock_wait "map_find:$path";
		1397
		1398	$cf::MAP{$path} || do {
		1399	my $guard = cf::lock_acquire "map_find:$path";
		1400	my $map = new_from_path cf::map $path
		1401	or return;
		1402
		1403	$map->{last_save} = $cf::RUNTIME;
		1404
		1405	$map->load_header
		1406	or return;
		1407
		1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1409	# doing this can freeze the server in a sync job, obviously
		1410	#$cf::WAIT_FOR_TICK->wait;
		1411	$map->reset;
		1412	undef $guard;
		1413	return find $path;
		1414	}
		1415
		1416	$cf::MAP{$path} = $map
		1417	}
		1418	}
		1419
		1420	sub pre_load { }
		1421	sub post_load { }
		1422
		1423	sub load {
		1424	my ($self) = @_;
		1425
		1426	local $self->{deny_reset} = 1; # loading can take a long time
		1427
		1428	my $path = $self->{path};
		1429	my $guard = cf::lock_acquire "map_load:$path";
		1430
		1431	return if $self->in_memory != cf::MAP_SWAPPED;
		1432
		1433	$self->in_memory (cf::MAP_LOADING);
		1434
		1435	$self->alloc;
		1436
		1437	$self->pre_load;
		1438
		1439	$self->_load_objects ($self->{load_path}, 1)
		1440	or return;
		1441
		1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1443	if delete $self->{load_original};
		1444
		1445	if (my $uniq = $self->uniq_path) {
		1446	utf8::encode $uniq;
		1447	if (aio_open $uniq, O_RDONLY, 0) {
		1448	$self->clear_unique_items;
		1449	$self->_load_objects ($uniq, 0);
		1450	}
		1451	}
		1452
		1453	Coro::cede;
		1454
		1455	# now do the right thing for maps
		1456	$self->link_multipart_objects;
		1457
		1458	unless ($self->{deny_activate}) {
		1459	$self->decay_objects;
		1460	$self->fix_auto_apply;
		1461	$self->update_buttons;
		1462	Coro::cede;
		1463	$self->set_darkness_map;
		1464	$self->difficulty ($self->estimate_difficulty)
		1465	unless $self->difficulty;
		1466	Coro::cede;
		1467	$self->activate;
		1468	}
		1469
		1470	$self->post_load;
		1471
		1472	$self->in_memory (cf::MAP_IN_MEMORY);
		1473	}
		1474
		1475	sub customise_for {
		1476	my ($self, $ob) = @_;
		1477
		1478	return find "~" . $ob->name . "/" . $self->{path}
		1479	if $self->per_player;
		1480
		1481	$self
		1482	}
		1483
		1484	# find and load all maps in the 3x3 area around a map
		1485	sub load_diag {
960	my ($map) = @_;	1486	my ($map) = @_;
961		1487
962	my $path = $map->tmpname;	1488	my @diag; # diagonal neighbours
963	defined $path or return;
964		1489
965	unlink "$path.pst";	1490	for (0 .. 3) {
966	};	1491	my $neigh = $map->tile_path ($_)
		1492	or next;
		1493	$neigh = find $neigh, $map
		1494	or next;
		1495	$neigh->load;
967		1496
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1497	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1498	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1499	}
969		1500
970	#############################################################################	1501	for (@diag) {
971	# load/save perl data associated with player->ob objects	1502	my $neigh = find @$_
972		1503	or next;
973	sub all_objects(@) {	1504	$neigh->load;
974	@_, map all_objects ($_->inv), @_	1505	}
975	}	1506	}
976		1507
977	# TODO: compatibility cruft, remove when no longer needed	1508	sub find_sync {
978	cf::player->attach (	1509	my ($path, $origin) = @_;
979	on_load => sub {
980	my ($pl, $path) = @_;
981		1510
982	for my $o (all_objects $pl->ob) {	1511	cf::sync_job { find $path, $origin }
983	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1512	}
984	$o->set_ob_key_value ("_perl_data");
985		1513
986	%$o = %{ Storable::thaw pack "H*", $value };	1514	sub do_load_sync {
		1515	my ($map) = @_;
		1516
		1517	cf::sync_job { $map->load };
		1518	}
		1519
		1520	our %MAP_PREFETCH;
		1521	our $MAP_PREFETCHER = undef;
		1522
		1523	sub find_async {
		1524	my ($path, $origin) = @_;
		1525
		1526	$path = normalise $path, $origin && $origin->{path};
		1527
		1528	if (my $map = $cf::MAP{$path}) {
		1529	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1530	}
		1531
		1532	undef $MAP_PREFETCH{$path};
		1533	$MAP_PREFETCHER ||= cf::async {
		1534	while (%MAP_PREFETCH) {
		1535	for my $path (keys %MAP_PREFETCH) {
		1536	my $map = find $path
		1537	or next;
		1538	$map->load;
		1539
		1540	delete $MAP_PREFETCH{$path};
987	}	1541	}
988	}	1542	}
		1543	undef $MAP_PREFETCHER;
		1544	};
		1545	$MAP_PREFETCHER->prio (6);
		1546
		1547	()
		1548	}
		1549
		1550	sub save {
		1551	my ($self) = @_;
		1552
		1553	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1554
		1555	$self->{last_save} = $cf::RUNTIME;
		1556
		1557	return unless $self->dirty;
		1558
		1559	my $save = $self->save_path; utf8::encode $save;
		1560	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1561
		1562	$self->{load_path} = $save;
		1563
		1564	return if $self->{deny_save};
		1565
		1566	local $self->{last_access} = $self->last_access;#d#
		1567
		1568	cf::async {
		1569	$_->contr->save for $self->players;
		1570	};
		1571
		1572	if ($uniq) {
		1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1574	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1575	} else {
		1576	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
989	},	1577	}
990	);	1578	}
991		1579
992	#############################################################################	1580	sub swap_out {
		1581	my ($self) = @_;
993		1582
994	=head2 CORE EXTENSIONS	1583	# save first because save cedes
		1584	$self->save;
995		1585
996	Functions and methods that extend core crossfire objects.	1586	my $lock = cf::lock_acquire "map_data:" . $self->path;
997		1587
998	=head3 cf::player	1588	return if $self->players;
		1589	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1590	return if $self->{deny_save};
		1591
		1592	$self->clear;
		1593	$self->in_memory (cf::MAP_SWAPPED);
		1594	}
		1595
		1596	sub reset_at {
		1597	my ($self) = @_;
		1598
		1599	# TODO: safety, remove and allow resettable per-player maps
		1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1601	return 1e99 if $self->{deny_reset};
		1602
		1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1605
		1606	$time + $to
		1607	}
		1608
		1609	sub should_reset {
		1610	my ($self) = @_;
		1611
		1612	$self->reset_at <= $cf::RUNTIME
		1613	}
		1614
		1615	sub reset {
		1616	my ($self) = @_;
		1617
		1618	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1619
		1620	return if $self->players;
		1621	return if $self->isa ("ext::map_per_player");#d#
		1622
		1623	warn "resetting map ", $self->path;#d#
		1624
		1625	$self->in_memory (cf::MAP_SWAPPED);
		1626
		1627	# need to save uniques path
		1628	unless ($self->{deny_save}) {
		1629	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1630
		1631	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1632	if $uniq;
		1633	}
		1634
		1635	delete $cf::MAP{$self->path};
		1636
		1637	$self->clear;
		1638
		1639	$_->clear_links_to ($self) for values %cf::MAP;
		1640
		1641	$self->unlink_save;
		1642	$self->destroy;
		1643	}
		1644
		1645	my $nuke_counter = "aaaa";
		1646
		1647	sub nuke {
		1648	my ($self) = @_;
		1649
		1650	delete $cf::MAP{$self->path};
		1651
		1652	$self->unlink_save;
		1653
		1654	bless $self, "cf::map";
		1655	delete $self->{deny_reset};
		1656	$self->{deny_save} = 1;
		1657	$self->reset_timeout (1);
		1658	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1659
		1660	$cf::MAP{$self->path} = $self;
		1661
		1662	$self->reset; # polite request, might not happen
		1663	}
		1664
		1665	=item cf::map::unique_maps
		1666
		1667	Returns an arrayref of paths of all shared maps that have
		1668	instantiated unique items. May block.
		1669
		1670	=cut
		1671
		1672	sub unique_maps() {
		1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1674	or return;
		1675
		1676	my @paths;
		1677
		1678	for (@$files) {
		1679	utf8::decode $_;
		1680	next if /\.pst$/;
		1681	next unless /^$PATH_SEP/o;
		1682
		1683	push @paths, cf::map::normalise $_;
		1684	}
		1685
		1686	\@paths
		1687	}
		1688
		1689	package cf;
		1690
		1691	=back
		1692
		1693	=head3 cf::object
		1694
		1695	=cut
		1696
		1697	package cf::object;
999		1698
1000	=over 4	1699	=over 4
1001		1700
1002	=item cf::player::exists $login	1701	=item $ob->inv_recursive
1003		1702
1004	Returns true when the given account exists.	1703	Returns the inventory of the object _and_ their inventories, recursively.
1005		1704
1006	=cut	1705	=cut
1007		1706
1008	sub cf::player::exists($) {	1707	sub inv_recursive_;
1009	cf::player::find $_[0]	1708	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1709	map { $_, inv_recursive_ $_->inv } @_
1011	}	1710	}
1012		1711
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	1712	sub inv_recursive {
1014		1713	inv_recursive_ inv $_[0]
1015	Sends an ext reply to the player.
1016
1017	=cut
1018
1019	sub cf::player::ext_reply($$$%) {
1020	my ($self, $id, %msg) = @_;
1021
1022	$msg{msgid} = $id;
1023
1024	$self->send ("ext " . to_json \%msg);
1025	}	1714	}
		1715
		1716	package cf;
1026		1717
1027	=back	1718	=back
1028		1719
1029	=head3 cf::object::player	1720	=head3 cf::object::player
1030		1721
…		…
1068	(ref $cf::CFG{"may_$access"}	1759	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1760	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1761	: $cf::CFG{"may_$access"})
1071	}	1762	}
1072		1763
		1764	=item $player_object->enter_link
		1765
		1766	Freezes the player and moves him/her to a special map (C<{link}>).
		1767
		1768	The player should be reasonably safe there for short amounts of time. You
		1769	I<MUST> call C<leave_link> as soon as possible, though.
		1770
		1771	Will never block.
		1772
		1773	=item $player_object->leave_link ($map, $x, $y)
		1774
		1775	Moves the player out of the special C<{link}> map onto the specified
		1776	map. If the map is not valid (or omitted), the player will be moved back
		1777	to the location he/she was before the call to C<enter_link>, or, if that
		1778	fails, to the emergency map position.
		1779
		1780	Might block.
		1781
		1782	=cut
		1783
		1784	sub link_map {
		1785	unless ($LINK_MAP) {
		1786	$LINK_MAP = cf::map::find "{link}"
		1787	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1788	$LINK_MAP->load;
		1789	}
		1790
		1791	$LINK_MAP
		1792	}
		1793
		1794	sub cf::object::player::enter_link {
		1795	my ($self) = @_;
		1796
		1797	$self->deactivate_recursive;
		1798
		1799	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1800
		1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1802	if $self->map;
		1803
		1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1805	}
		1806
		1807	sub cf::object::player::leave_link {
		1808	my ($self, $map, $x, $y) = @_;
		1809
		1810	my $link_pos = delete $self->{_link_pos};
		1811
		1812	unless ($map) {
		1813	# restore original map position
		1814	($map, $x, $y) = @{ $link_pos || [] };
		1815	$map = cf::map::find $map;
		1816
		1817	unless ($map) {
		1818	($map, $x, $y) = @$EMERGENCY_POSITION;
		1819	$map = cf::map::find $map
		1820	or die "FATAL: cannot load emergency map\n";
		1821	}
		1822	}
		1823
		1824	($x, $y) = (-1, -1)
		1825	unless (defined $x) && (defined $y);
		1826
		1827	# use -1 or undef as default coordinates, not 0, 0
		1828	($x, $y) = ($map->enter_x, $map->enter_y)
		1829	if $x <=0 && $y <= 0;
		1830
		1831	$map->load;
		1832	$map->load_diag;
		1833
		1834	return unless $self->contr->active;
		1835	$self->activate_recursive;
		1836
		1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1838	$self->enter_map ($map, $x, $y);
		1839	}
		1840
		1841	cf::player->attach (
		1842	on_logout => sub {
		1843	my ($pl) = @_;
		1844
		1845	# abort map switching before logout
		1846	if ($pl->ob->{_link_pos}) {
		1847	cf::sync_job {
		1848	$pl->ob->leave_link
		1849	};
		1850	}
		1851	},
		1852	on_login => sub {
		1853	my ($pl) = @_;
		1854
		1855	# try to abort aborted map switching on player login :)
		1856	# should happen only on crashes
		1857	if ($pl->ob->{_link_pos}) {
		1858	$pl->ob->enter_link;
		1859	(async {
		1860	$pl->ob->reply (undef,
		1861	"There was an internal problem at your last logout, "
		1862	. "the server will try to bring you to your intended destination in a second.",
		1863	cf::NDI_RED);
		1864	# we need this sleep as the login has a concurrent enter_exit running
		1865	# and this sleep increases chances of the player not ending up in scorn
		1866	Coro::Timer::sleep 1;
		1867	$pl->ob->leave_link;
		1868	})->prio (2);
		1869	}
		1870	},
		1871	);
		1872
		1873	=item $player_object->goto ($path, $x, $y)
		1874
		1875	=cut
		1876
		1877	sub cf::object::player::goto {
		1878	my ($self, $path, $x, $y) = @_;
		1879
		1880	$self->enter_link;
		1881
		1882	(async {
		1883	my $map = eval {
		1884	my $map = cf::map::find $path;
		1885	$map = $map->customise_for ($self) if $map;
		1886	$map
		1887	} or
		1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1889
		1890	$self->leave_link ($map, $x, $y);
		1891	})->prio (1);
		1892	}
		1893
		1894	=item $player_object->enter_exit ($exit_object)
		1895
		1896	=cut
		1897
		1898	sub parse_random_map_params {
		1899	my ($spec) = @_;
		1900
		1901	my $rmp = { # defaults
		1902	xsize => (cf::rndm 15, 40),
		1903	ysize => (cf::rndm 15, 40),
		1904	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1905	#layout => string,
		1906	};
		1907
		1908	for (split /\n/, $spec) {
		1909	my ($k, $v) = split /\s+/, $_, 2;
		1910
		1911	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1912	}
		1913
		1914	$rmp
		1915	}
		1916
		1917	sub prepare_random_map {
		1918	my ($exit) = @_;
		1919
		1920	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1921
		1922	# all this does is basically replace the /! path by
		1923	# a new random map path (?random/...) with a seed
		1924	# that depends on the exit object
		1925
		1926	my $rmp = parse_random_map_params $exit->msg;
		1927
		1928	if ($exit->map) {
		1929	$rmp->{region} = $exit->region->name;
		1930	$rmp->{origin_map} = $exit->map->path;
		1931	$rmp->{origin_x} = $exit->x;
		1932	$rmp->{origin_y} = $exit->y;
		1933	}
		1934
		1935	$rmp->{random_seed} ||= $exit->random_seed;
		1936
		1937	my $data = cf::to_json $rmp;
		1938	my $md5 = Digest::MD5::md5_hex $data;
		1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1940
		1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1942	aio_write $fh, 0, (length $data), $data, 0;
		1943	undef $fh;
		1944	aio_rename "$meta~", $meta;
		1945
		1946	$exit->slaying ("?random/$md5");
		1947	$exit->msg (undef);
		1948	}
		1949	}
		1950
		1951	sub cf::object::player::enter_exit {
		1952	my ($self, $exit) = @_;
		1953
		1954	return unless $self->type == cf::PLAYER;
		1955
		1956	if ($exit->slaying eq "/!") {
		1957	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1958	cf::sync_job { prepare_random_map $exit };
		1959	}
		1960
		1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1962	my $hp = $exit->stats->hp;
		1963	my $sp = $exit->stats->sp;
		1964
		1965	$self->enter_link;
		1966
		1967	(async {
		1968	$self->deactivate_recursive; # just to be sure
		1969	unless (eval {
		1970	$self->goto ($slaying, $hp, $sp);
		1971
		1972	1;
		1973	}) {
		1974	$self->message ("Something went wrong deep within the crossfire server. "
		1975	. "I'll try to bring you back to the map you were before. "
		1976	. "Please report this to the dungeon master!",
		1977	cf::NDI_UNIQUE | cf::NDI_RED);
		1978
		1979	warn "ERROR in enter_exit: $@";
		1980	$self->leave_link;
		1981	}
		1982	})->prio (1);
		1983	}
		1984
1073	=head3 cf::client	1985	=head3 cf::client
1074		1986
1075	=over 4	1987	=over 4
1076		1988
1077	=item $client->send_drawinfo ($text, $flags)	1989	=item $client->send_drawinfo ($text, $flags)
…		…
1083		1995
1084	sub cf::client::send_drawinfo {	1996	sub cf::client::send_drawinfo {
1085	my ($self, $text, $flags) = @_;	1997	my ($self, $text, $flags) = @_;
1086		1998
1087	utf8::encode $text;	1999	utf8::encode $text;
1088	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2000	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1089	}	2001	}
1090		2002
1091		2003
1092	=item $success = $client->query ($flags, "text", \&cb)	2004	=item $success = $client->query ($flags, "text", \&cb)
1093		2005
…		…
1120	on_reply => sub {	2032	on_reply => sub {
1121	my ($ns, $msg) = @_;	2033	my ($ns, $msg) = @_;
1122		2034
1123	# this weird shuffling is so that direct followup queries	2035	# this weird shuffling is so that direct followup queries
1124	# get handled first	2036	# get handled first
1125	my $queue = delete $ns->{query_queue};	2037	my $queue = delete $ns->{query_queue}
		2038	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		2039
1127	(shift @$queue)->[1]->($msg);	2040	(shift @$queue)->[1]->($msg);
		2041	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1128		2042
1129	push @{ $ns->{query_queue} }, @$queue;	2043	push @{ $ns->{query_queue} }, @$queue;
1130		2044
1131	if (@{ $ns->{query_queue} } == @$queue) {	2045	if (@{ $ns->{query_queue} } == @$queue) {
1132	if (@$queue) {	2046	if (@$queue) {
…		…
1136	}	2050	}
1137	}	2051	}
1138	},	2052	},
1139	);	2053	);
1140		2054
1141	=item $client->coro (\&cb)	2055	=item $client->async (\&cb)
1142		2056
1143	Create a new coroutine, running the specified callback. The coroutine will	2057	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	2058	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	2059	or loss of connection).
1146		2060
1147	=cut	2061	=cut
1148		2062
1149	sub cf::client::coro {	2063	sub cf::client::async {
1150	my ($self, $cb) = @_;	2064	my ($self, $cb) = @_;
1151		2065
1152	my $coro; $coro = async {	2066	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		2067
1159	$coro->on_destroy (sub {	2068	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	2069	delete $self->{_coro}{$coro+0};
1161	});	2070	});
1162		2071
…		…
1298	The parameter C<$family> should best start with the name of the extension	2207	The parameter C<$family> should best start with the name of the extension
1299	using it, it should be unique.	2208	using it, it should be unique.
1300		2209
1301	=over 4	2210	=over 4
1302		2211
1303	=item $hashref = cf::db_get $family
1304
1305	Return a hashref for use by the extension C<$family>, which can be
1306	modified. After modifications, you have to call C<cf::db_dirty> or
1307	C<cf::db_sync>.
1308
1309	=item $value = cf::db_get $family => $key	2212	=item $value = cf::db_get $family => $key
1310		2213
1311	Returns a single value from the database	2214	Returns a single value from the database.
1312
1313	=item cf::db_put $family => $hashref
1314
1315	Stores the given family hashref into the database. Updates are delayed, if
1316	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1317		2215
1318	=item cf::db_put $family => $key => $value	2216	=item cf::db_put $family => $key => $value
1319		2217
1320	Stores the given C<$value> in the family hash. Updates are delayed, if you	2218	Stores the given C<$value> in the family.
1321	want the data to be synced to disk immediately, use C<cf::db_sync>.
1322
1323	=item cf::db_dirty
1324
1325	Marks the database as dirty, to be updated at a later time.
1326
1327	=item cf::db_sync
1328
1329	Immediately write the database to disk I<if it is dirty>.
1330		2219
1331	=cut	2220	=cut
1332		2221
1333	our $DB;	2222	our $DB;
1334		2223
1335	{	2224	sub db_init {
		2225	unless ($DB) {
		2226	$DB = BDB::db_create $DB_ENV;
		2227
		2228	cf::sync_job {
		2229	eval {
		2230	$DB->set_flags (BDB::CHKSUM);
		2231
		2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2234	cf::cleanup "db_open(db): $!" if $!;
		2235	};
		2236	cf::cleanup "db_open(db): $@" if $@;
		2237	};
		2238
1336	my $path = cf::localdir . "/database.pst";	2239	my $path = cf::localdir . "/database.pst";
		2240	if (stat $path) {
		2241	cf::sync_job {
		2242	my $pst = Storable::retrieve $path;
1337		2243
1338	sub db_load() {	2244	cf::db_put (board => data => $pst->{board});
1339	warn "loading database $path\n";#d# remove later	2245	cf::db_put (guildrules => data => $pst->{guildrules});
1340	$DB = stat $path ? Storable::retrieve $path : { };	2246	cf::db_put (rent => balance => $pst->{rent}{balance});
1341	}	2247	BDB::db_env_txn_checkpoint $DB_ENV;
1342		2248
1343	my $pid;	2249	unlink $path;
1344
1345	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;
1352	cf::_exit 0 if defined $pid;
1353	}	2250	};
1354	}	2251	}
1355
1356	my $dirty;
1357
1358	sub db_sync() {
1359	db_save if $dirty;
1360	undef $dirty;
1361	}
1362
1363	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1364	db_sync;
1365	});	2252	}
		2253	}
1366		2254
1367	sub db_dirty() {
1368	$dirty = 1;
1369	$idle->start;
1370	}
1371
1372	sub db_get($;$) {	2255	sub db_get($$) {
1373	@_ >= 2	2256	my $key = "$_[0]/$_[1]";
1374	? $DB->{$_[0]}{$_[1]}
1375	: ($DB->{$_[0]} ||= { })
1376	}
1377		2257
		2258	cf::sync_job {
		2259	BDB::db_get $DB, undef, $key, my $data;
		2260
		2261	$! ? ()
		2262	: Compress::LZF::sthaw $data
		2263	}
		2264	}
		2265
1378	sub db_put($$;$) {	2266	sub db_put($$$) {
1379	if (@_ >= 3) {	2267	BDB::dbreq_pri 4;
1380	$DB->{$_[0]}{$_[1]} = $_[2];	2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2269	}
		2270
		2271	#############################################################################
		2272	# the server's init and main functions
		2273
		2274	sub load_faces {
		2275	my $path = sprintf "%s/faces", cf::datadir;
		2276
		2277	warn "loading faces from $path\n";
		2278
		2279	my $faces;
		2280	0 < aio_load $path, $faces
		2281	or die "$path: $!";
		2282
		2283	Coro::cede;
		2284	$faces = Storable::thaw $faces;
		2285	Coro::cede;
		2286
		2287	while (my ($face, $info) = each %$faces) {
		2288	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2289	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2290	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2291	Coro::cede;
		2292	}
		2293
		2294	while (my ($face, $info) = each %$faces) {
		2295	next unless $info->{smooth};
		2296	my $idx = cf::face::find $face
		2297	or next;
		2298	if (my $smooth = cf::face::find $info->{smooth}) {
		2299	cf::face::set_smooth $idx, $smooth;
		2300	warn "smooth $idx,$smooth ($face,$info->{smooth})\n";#d#
1381	} else {	2301	} else {
1382	$DB->{$_[0]} = $_[1];	2302	warn "smooth face '$info->{smooth}' not found for face '$face'";
1383	}
1384	db_dirty;
1385	}
1386
1387	cf::global->attach (
1388	prio => 10000,
1389	on_cleanup => sub {
1390	db_sync;
1391	},	2303	}
1392	);	2304	Coro::cede;
1393	}	2305	}
1394		2306
1395	#############################################################################	2307	1
1396	# the server's main()	2308	}
		2309
		2310	sub reload_resources {
		2311	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2312	or die "unable to load regions file\n";#d#
		2313	load_faces
		2314	or die "unable to load faces\n";#d#
		2315	}
		2316
		2317	sub init {
		2318	reload_resources;
		2319	}
1397		2320
1398	sub cfg_load {	2321	sub cfg_load {
1399	open my $fh, "<:utf8", cf::confdir . "/config"	2322	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	2323	or return;
1401		2324
1402	local $/;	2325	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	2326	*CFG = YAML::Syck::Load <$fh>;
		2327
		2328	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2329
		2330	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2331	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2332
		2333	if (exists $CFG{mlockall}) {
		2334	eval {
		2335	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2336	and die "WARNING: m(un)lockall failed: $!\n";
		2337	};
		2338	warn $@ if $@;
		2339	}
1404	}	2340	}
1405		2341
1406	sub main {	2342	sub main {
1407	# we must not ever block the main coroutine	2343	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2344	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2345	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {	2346	(async {
1411	Event::one_event;	2347	Event::one_event;
1412	})->();	2348	})->prio (Coro::PRIO_MAX);
1413	};	2349	};
1414		2350
1415	cfg_load;	2351	cfg_load;
1416	db_load;	2352	db_init;
1417	load_extensions;	2353	load_extensions;
		2354
		2355	$TICK_WATCHER->start;
1418	Event::loop;	2356	Event::loop;
1419	}	2357	}
1420		2358
1421	#############################################################################	2359	#############################################################################
1422	# initialisation	2360	# initialisation and cleanup
1423		2361
		2362	# install some emergency cleanup handlers
		2363	BEGIN {
		2364	for my $signal (qw(INT HUP TERM)) {
		2365	Event->signal (
		2366	reentrant => 0,
		2367	data => WF_AUTOCANCEL,
		2368	signal => $signal,
		2369	prio => 0,
		2370	cb => sub {
		2371	cf::cleanup "SIG$signal";
		2372	},
		2373	);
		2374	}
		2375	}
		2376
		2377	sub emergency_save() {
		2378	my $freeze_guard = cf::freeze_mainloop;
		2379
		2380	warn "enter emergency perl save\n";
		2381
		2382	cf::sync_job {
		2383	# use a peculiar iteration method to avoid tripping on perl
		2384	# refcount bugs in for. also avoids problems with players
		2385	# and maps saved/destroyed asynchronously.
		2386	warn "begin emergency player save\n";
		2387	for my $login (keys %cf::PLAYER) {
		2388	my $pl = $cf::PLAYER{$login} or next;
		2389	$pl->valid or next;
		2390	$pl->save;
		2391	}
		2392	warn "end emergency player save\n";
		2393
		2394	warn "begin emergency map save\n";
		2395	for my $path (keys %cf::MAP) {
		2396	my $map = $cf::MAP{$path} or next;
		2397	$map->valid or next;
		2398	$map->save;
		2399	}
		2400	warn "end emergency map save\n";
		2401
		2402	warn "begin emergency database checkpoint\n";
		2403	BDB::db_env_txn_checkpoint $DB_ENV;
		2404	warn "end emergency database checkpoint\n";
		2405	};
		2406
		2407	warn "leave emergency perl save\n";
		2408	}
		2409
		2410	sub post_cleanup {
		2411	my ($make_core) = @_;
		2412
		2413	warn Carp::longmess "post_cleanup backtrace"
		2414	if $make_core;
		2415	}
		2416
1424	sub perl_reload() {	2417	sub reload() {
1425	# can/must only be called in main	2418	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2419	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2420	warn "can only reload from main coroutine";
1428	return;	2421	return;
1429	}	2422	}
1430		2423
1431	warn "reloading...";	2424	warn "reloading...";
1432		2425
1433	local $FREEZE = 1;	2426	warn "entering sync_job";
		2427
		2428	cf::sync_job {
		2429	cf::write_runtime; # external watchdog should not bark
1434	cf::emergency_save;	2430	cf::emergency_save;
		2431	cf::write_runtime; # external watchdog should not bark
1435		2432
1436	eval {	2433	warn "syncing database to disk";
		2434	BDB::db_env_txn_checkpoint $DB_ENV;
		2435
1437	# if anything goes wrong in here, we should simply crash as we already saved	2436	# if anything goes wrong in here, we should simply crash as we already saved
1438		2437
1439	# cancel all watchers	2438	warn "cancelling all WF_AUTOCANCEL watchers";
1440	for (Event::all_watchers) {	2439	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	2440	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	2441	}
1443		2442
		2443	warn "flushing outstanding aio requests";
		2444	for (;;) {
		2445	BDB::flush;
		2446	IO::AIO::flush;
		2447	Coro::cede;
		2448	last unless IO::AIO::nreqs || BDB::nreqs;
		2449	warn "iterate...";
		2450	}
		2451
		2452	++$RELOAD;
		2453
1444	# cancel all extension coros	2454	warn "cancelling all extension coros";
1445	$_->cancel for values %EXT_CORO;	2455	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	2456	%EXT_CORO = ();
1447		2457
1448	# unload all extensions	2458	warn "removing commands";
1449	for (@exts) {	2459	%COMMAND = ();
		2460
		2461	warn "removing ext commands";
		2462	%EXTCMD = ();
		2463
		2464	warn "unloading/nuking all extensions";
		2465	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	2466	warn "... unloading $pkg";
1451	unload_extension $_;	2467
		2468	if (my $cb = $pkg->can ("unload")) {
		2469	eval {
		2470	$cb->($pkg);
		2471	1
		2472	} or warn "$pkg unloaded, but with errors: $@";
1452	}	2473	}
1453		2474
		2475	warn "... nuking $pkg";
		2476	Symbol::delete_package $pkg;
		2477	}
		2478
1454	# unload all modules loaded from $LIBDIR	2479	warn "unloading all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	2480	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2481	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		2482
1458	warn "removing <$k>";	2483	warn "... unloading $k";
1459	delete $INC{$k};	2484	delete $INC{$k};
1460		2485
1461	$k =~ s/\.pm$//;	2486	$k =~ s/\.pm$//;
1462	$k =~ s/\//::/g;	2487	$k =~ s/\//::/g;
1463		2488
…		…
1466	}	2491	}
1467		2492
1468	Symbol::delete_package $k;	2493	Symbol::delete_package $k;
1469	}	2494	}
1470		2495
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	2496	warn "getting rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	2497	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2498	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		2499
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	2500	warn "unloading cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	2501	delete $INC{"cf.pm"};
1484		2502
1485	# don't, removes xs symbols, too,	2503	# don't, removes xs symbols, too,
1486	# and global variables created in xs	2504	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	2505	#Symbol::delete_package __PACKAGE__;
1488		2506
1489	# reload cf.pm	2507	warn "unload completed, starting to reload now";
		2508
1490	warn "reloading cf.pm";	2509	warn "reloading cf.pm";
1491	require cf;	2510	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2511	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		2512
1494	# load config and database again	2513	warn "loading config and database again";
1495	cf::cfg_load;	2514	cf::cfg_load;
1496	cf::db_load;
1497		2515
1498	# load extensions
1499	warn "load extensions";	2516	warn "loading extensions";
1500	cf::load_extensions;	2517	cf::load_extensions;
1501		2518
1502	# reattach attachments to objects	2519	warn "reattaching attachments to objects/players";
1503	warn "reattach";	2520	_global_reattach; # objects, sockets
1504	_global_reattach;	2521	warn "reattaching attachments to maps";
1505	};	2522	reattach $_ for values %MAP;
		2523	warn "reattaching attachments to players";
		2524	reattach $_ for values %PLAYER;
1506		2525
1507	if ($@) {	2526	warn "loading reloadable resources";
		2527	reload_resources;
		2528
		2529	warn "leaving sync_job";
		2530
		2531	1
		2532	} or do {
1508	warn $@;	2533	warn $@;
1509	warn "error while reloading, exiting.";	2534	warn "error while reloading, exiting.";
1510	exit 1;	2535	exit 1;
1511	}	2536	};
1512		2537
1513	warn "reloaded successfully";	2538	warn "reloaded";
1514	};	2539	};
1515		2540
1516	#############################################################################	2541	our $RELOAD_WATCHER; # used only during reload
1517		2542
1518	unless ($LINK_MAP) {
1519	$LINK_MAP = cf::map::new;
1520
1521	$LINK_MAP->width (41);
1522	$LINK_MAP->height (41);
1523	$LINK_MAP->alloc;
1524	$LINK_MAP->path ("{link}");
1525	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1526	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}
1528
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	2543	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2544	my ($who, $arg) = @_;
1533		2545
1534	if ($who->flag (FLAG_WIZ)) {	2546	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");
1536	perl_reload;
1537	$who->message ("end of reload.");	2547	$who->message ("reloading server.");
		2548
		2549	# doing reload synchronously and two reloads happen back-to-back,
		2550	# coro crashes during coro_state_free->destroy here.
		2551
		2552	$RELOAD_WATCHER ||= Event->timer (
		2553	reentrant => 0,
		2554	after => 0,
		2555	data => WF_AUTOCANCEL,
		2556	cb => sub {
		2557	reload;
		2558	undef $RELOAD_WATCHER;
		2559	},
		2560	);
1538	}	2561	}
1539	};	2562	};
1540		2563
1541	unshift @INC, $LIBDIR;	2564	unshift @INC, $LIBDIR;
		2565
		2566	my $bug_warning = 0;
1542		2567
1543	$TICK_WATCHER = Event->timer (	2568	$TICK_WATCHER = Event->timer (
1544	reentrant => 0,	2569	reentrant => 0,
		2570	parked => 1,
1545	prio => 0,	2571	prio => 0,
1546	at => $NEXT_TICK || $TICK,	2572	at => $NEXT_TICK || $TICK,
1547	data => WF_AUTOCANCEL,	2573	data => WF_AUTOCANCEL,
1548	cb => sub {	2574	cb => sub {
1549	unless ($FREEZE) {	2575	if ($Coro::current != $Coro::main) {
		2576	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2577	unless ++$bug_warning > 10;
		2578	return;
		2579	}
		2580
		2581	$NOW = Event::time;
		2582
1550	cf::server_tick; # one server iteration	2583	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2584	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2585	$NEXT_TICK += $TICK;
		2586
		2587	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2588	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2589	Coro::async_pool {
		2590	write_runtime
		2591	or warn "ERROR: unable to write runtime file: $!";
		2592	};
		2593	}
		2594
		2595	$WAIT_FOR_TICK->broadcast;
		2596	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2597
		2598	# my $AFTER = Event::time;
		2599	# warn $AFTER - $NOW;#d#
1555		2600
1556	# if we are delayed by four ticks or more, skip them all	2601	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2602	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2603
1559	$TICK_WATCHER->at ($NEXT_TICK);	2604	$TICK_WATCHER->at ($NEXT_TICK);
1560	$TICK_WATCHER->start;	2605	$TICK_WATCHER->start;
1561	},	2606	},
1562	);	2607	);
1563		2608
		2609	{
1564	IO::AIO::max_poll_time $TICK * 0.2;	2610	BDB::max_poll_time $TICK * 0.1;
1565		2611	$BDB_POLL_WATCHER = Event->io (
1566	Event->io (	2612	reentrant => 0,
1567	fd => IO::AIO::poll_fileno,	2613	fd => BDB::poll_fileno,
1568	poll => 'r',	2614	poll => 'r',
1569	prio => 5,	2615	prio => 0,
1570	data => WF_AUTOCANCEL,
1571	cb => \&IO::AIO::poll_cb,
1572	);
1573
1574	Event->timer (
1575	data => WF_AUTOCANCEL,	2616	data => WF_AUTOCANCEL,
1576	after => 0,	2617	cb => \&BDB::poll_cb,
1577	interval => 10,	2618	);
1578	cb => sub {	2619	BDB::min_parallel 8;
1579	(Coro::unblock_sub {	2620
1580	write_runtime	2621	BDB::set_sync_prepare {
1581	or warn "ERROR: unable to write runtime file: $!";	2622	my $status;
		2623	my $current = $Coro::current;
		2624	(
		2625	sub {
		2626	$status = $!;
		2627	$current->ready; undef $current;
		2628	},
		2629	sub {
		2630	Coro::schedule while defined $current;
		2631	$! = $status;
		2632	},
		2633	)
		2634	};
		2635
		2636	unless ($DB_ENV) {
		2637	$DB_ENV = BDB::db_env_create;
		2638
		2639	cf::sync_job {
		2640	eval {
		2641	BDB::db_env_open
		2642	$DB_ENV,
		2643	$BDB_ENV_DIR,
		2644	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2645	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2646	0666;
		2647
		2648	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2649
		2650	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2651	$DB_ENV->set_lk_detect;
		2652	};
		2653
		2654	cf::cleanup "db_env_open(db): $@" if $@;
1582	})->();	2655	};
1583	},	2656	}
1584	);	2657	}
		2658
		2659	{
		2660	IO::AIO::min_parallel 8;
		2661
		2662	undef $Coro::AIO::WATCHER;
		2663	IO::AIO::max_poll_time $TICK * 0.1;
		2664	$AIO_POLL_WATCHER = Event->io (
		2665	reentrant => 0,
		2666	data => WF_AUTOCANCEL,
		2667	fd => IO::AIO::poll_fileno,
		2668	poll => 'r',
		2669	prio => 6,
		2670	cb => \&IO::AIO::poll_cb,
		2671	);
		2672	}
		2673
		2674	END { cf::emergency_save }
1585		2675
1586	1	2676	1
1587		2677

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