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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.109 by root, Sun Dec 31 22:23:12 2006 UTC vs.
Revision 1.211 by root, Tue Feb 13 16:23:32 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$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		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;	97
		98	sub cf::map::normalise;
76		99
77	#############################################################################	100	#############################################################################
78		101
79	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
80		103
…		…
104		127
105	=item %cf::CFG	128	=item %cf::CFG
106		129
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
109		139
110	=back	140	=back
111		141
112	=cut	142	=cut
113		143
…		…
117	utf8::encode $msg;	147	utf8::encode $msg;
118		148
119	$msg .= "\n"	149	$msg .= "\n"
120	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
121		151
122	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
123	};	153	};
124	}	154	}
125		155
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		175
146	$Event::DIED = sub {	176	$Event::DIED = sub {
147	warn "error in event callback: @_";	177	warn "error in event callback: @_";
148	};	178	};
149		179
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
155		181
156	=over 4	182	=over 4
157		183
		184	=item dumpval $ref
		185
158	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
159		206
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		208
162	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
163		210
…		…
178		225
179	sub to_json($) {	226	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
182	}	229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	$WRITE_RUNTIME_WATCHER->start;
		279	};
		280	$WRITE_RUNTIME_WATCHER->stop;
		281	$TICK_WATCHER->stop;
		282	$guard
		283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
183		294
184	=item cf::sync_job { BLOCK }	295	=item cf::sync_job { BLOCK }
185		296
186	The design of crossfire+ requires that the main coro ($Coro::main) is	297	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	298	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	306	=cut
196		307
197	sub sync_job(&) {	308	sub sync_job(&) {
198	my ($job) = @_;	309	my ($job) = @_;
199		310
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 == $Coro::main) {	311	if ($Coro::current == $Coro::main) {
		312	# this is the main coro, too bad, we have to block
		313	# till the operation succeeds, freezing the server :/
		314
		315	# TODO: use suspend/resume instead
		316	# (but this is cancel-safe)
		317	my $freeze_guard = freeze_mainloop;
		318
		319	my $busy = 1;
		320	my @res;
		321
		322	(async {
		323	@res = eval { $job->() };
		324	warn $@ if $@;
		325	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	326	})->prio (Coro::PRIO_MAX);
		327
214	while ($busy) {	328	while ($busy) {
215	Coro::cede_notself;	329	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	330	}
		331
		332	wantarray ? @res : $res[0]
218	} else {	333	} else {
219	$coro->join;	334	# we are in another coroutine, how wonderful, everything just works
		335
		336	$job->()
220	}	337	}
221
222	wantarray ? @res : $res[0]
223	}	338	}
224		339
225	=item $coro = cf::coro { BLOCK }	340	=item $coro = cf::async_ext { BLOCK }
226		341
227	Creates and returns a new coro. This coro is automcatially being canceled	342	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	343	extension calling this is being unloaded.
229		344
230	=cut	345	=cut
231		346
232	sub coro(&) {	347	sub async_ext(&) {
233	my $cb = shift;	348	my $cb = shift;
234		349
235	my $coro; $coro = async {	350	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		351
242	$coro->on_destroy (sub {	352	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	353	delete $EXT_CORO{$coro+0};
244	});	354	});
245	$EXT_CORO{$coro+0} = $coro;	355	$EXT_CORO{$coro+0} = $coro;
246		356
247	$coro	357	$coro
248	}	358	}
249		359
250	sub write_runtime {	360	sub write_runtime {
		361	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
		362
251	my $runtime = cf::localdir . "/runtime";	363	my $runtime = cf::localdir . "/runtime";
252		364
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	365	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254	or return;	366	or return;
255		367
256	my $value = $cf::RUNTIME;	368	my $value = $cf::RUNTIME + 90 + 10;
		369	# 10 is the runtime save interval, for a monotonic clock
		370	# 60 allows for the watchdog to kill the server.
		371
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0	372	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	373	and return;
259		374
		375	# always fsync - this file is important
260	aio_fsync $fh	376	aio_fsync $fh
261	and return;	377	and return;
262		378
263	close $fh	379	close $fh
264	or return;	380	or return;
…		…
270	}	386	}
271		387
272	=back	388	=back
273		389
274	=cut	390	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
287	$self->{random} = cf::from_json $data;
288	} else {
289	if ($path =~ s{^~([^/]+)?}{}) {
290	$self->{user_rel} = 1;
291
292	if (defined $1) {
293	$self->{user} = $1;
294	} elsif ($base =~ m{^~([^/]+)/}) {
295	$self->{user} = $1;
296	} else {
297	warn "cannot resolve user-relative path without user <$path,$base>\n";
298	}
299	} elsif ($path =~ /^\//) {
300	# already absolute
301	} else {
302	$base =~ s{[^/]+/?$}{};
303	return $class->new ("$base/$path");
304	}
305
306	for ($path) {
307	redo if s{/\.?/}{/};
308	redo if s{/[^/]+/\.\./}{/};
309	}
310	}
311
312	$self->{path} = $path;
313
314	$self
315	}
316
317	# the name / primary key / in-game path
318	sub as_string {
319	my ($self) = @_;
320
321	$self->{user_rel} ? "~$self->{user}$self->{path}"
322	: $self->{random} ? "?random/$self->{path}"
323	: $self->{path}
324	}
325
326	# the displayed name, this is a one way mapping
327	sub visible_name {
328	my ($self) = @_;
329
330	# if (my $rmp = $self->{random}) {
331	# # todo: be more intelligent about this
332	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
333	# } else {
334	$self->as_string
335	# }
336	}
337
338	# escape the /'s in the path
339	sub _escaped_path {
340	# ∕ is U+2215
341	(my $path = $_[0]{path}) =~ s/\//∕/g;
342	$path
343	}
344
345	# the original (read-only) location
346	sub load_path {
347	my ($self) = @_;
348
349	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
350	}
351
352	# the temporary/swap location
353	sub save_path {
354	my ($self) = @_;
355
356	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
357	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
358	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
359	}
360
361	# the unique path, might be eq to save_path
362	sub uniq_path {
363	my ($self) = @_;
364
365	$self->{user_rel} || $self->{random}
366	? undef
367	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
368	}
369
370	# return random map parameters, or undef
371	sub random_map_params {
372	my ($self) = @_;
373
374	$self->{random}
375	}
376
377	# this is somewhat ugly, but style maps do need special treatment
378	sub is_style_map {
379	$_[0]{path} =~ m{^/styles/}
380	}
381
382	package cf;
383		391
384	#############################################################################	392	#############################################################################
385		393
386	=head2 ATTACHABLE OBJECTS	394	=head2 ATTACHABLE OBJECTS
387		395
…		…
513	our @CB_TYPE = (); # registry for type (cf-object class) based events	521	our @CB_TYPE = (); # registry for type (cf-object class) based events
514	our @CB_MAP = ();	522	our @CB_MAP = ();
515		523
516	my %attachment;	524	my %attachment;
517		525
		526	sub cf::attachable::thawer_merge {
		527	# simply override everything except _meta
		528	local $_[0]{_meta};
		529	%{$_[0]} = %{$_[1]};
		530	}
		531
518	sub _attach_cb($$$$) {	532	sub _attach_cb($$$$) {
519	my ($registry, $event, $prio, $cb) = @_;	533	my ($registry, $event, $prio, $cb) = @_;
520		534
521	use sort 'stable';	535	use sort 'stable';
522		536
…		…
693	# object support	707	# object support
694		708
695	sub reattach {	709	sub reattach {
696	# basically do the same as instantiate, without calling instantiate	710	# basically do the same as instantiate, without calling instantiate
697	my ($obj) = @_;	711	my ($obj) = @_;
		712
		713	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
698		714
699	my $registry = $obj->registry;	715	my $registry = $obj->registry;
700		716
701	@$registry = ();	717	@$registry = ();
702		718
…		…
749	$filename, length $$rdata, scalar @$objs;	765	$filename, length $$rdata, scalar @$objs;
750		766
751	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	767	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
752	chmod SAVE_MODE, $fh;	768	chmod SAVE_MODE, $fh;
753	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	769	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
754	aio_fsync $fh;	770	aio_fsync $fh if $cf::USE_FSYNC;
755	close $fh;	771	close $fh;
756		772
757	if (@$objs) {	773	if (@$objs) {
758	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	774	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
759	chmod SAVE_MODE, $fh;	775	chmod SAVE_MODE, $fh;
760	my $data = Storable::nfreeze { version => 1, objs => $objs };	776	my $data = Storable::nfreeze { version => 1, objs => $objs };
761	aio_write $fh, 0, (length $data), $data, 0;	777	aio_write $fh, 0, (length $data), $data, 0;
762	aio_fsync $fh;	778	aio_fsync $fh if $cf::USE_FSYNC;
763	close $fh;	779	close $fh;
764	aio_rename "$filename.pst~", "$filename.pst";	780	aio_rename "$filename.pst~", "$filename.pst";
765	}	781	}
766	} else {	782	} else {
767	aio_unlink "$filename.pst";	783	aio_unlink "$filename.pst";
…		…
773	}	789	}
774	} else {	790	} else {
775	aio_unlink $filename;	791	aio_unlink $filename;
776	aio_unlink "$filename.pst";	792	aio_unlink "$filename.pst";
777	}	793	}
		794
		795	#d##TODO# nuke non .map-files if exist
		796	if ($filename =~ s/\.map$//) {
		797	aio_unlink $filename;
		798	aio_unlink "$filename.pst";
		799	}
778	}	800	}
779	}	801	}
780		802
781	sub object_freezer_as_string {	803	sub object_freezer_as_string {
782	my ($rdata, $objs) = @_;	804	my ($rdata, $objs) = @_;
…		…
788		810
789	sub object_thawer_load {	811	sub object_thawer_load {
790	my ($filename) = @_;	812	my ($filename) = @_;
791		813
792	my ($data, $av);	814	my ($data, $av);
		815
		816	#d#TODO remove .map if file does not exist
		817	aio_stat $filename and $filename =~ s/\.map$//;
793		818
794	(aio_load $filename, $data) >= 0	819	(aio_load $filename, $data) >= 0
795	or return;	820	or return;
796		821
797	unless (aio_stat "$filename.pst") {	822	unless (aio_stat "$filename.pst") {
798	(aio_load "$filename.pst", $av) >= 0	823	(aio_load "$filename.pst", $av) >= 0
799	or return;	824	or return;
800	$av = eval { (Storable::thaw <$av>)->{objs} };	825	$av = eval { (Storable::thaw $av)->{objs} };
801	}	826	}
802		827
		828	warn sprintf "loading %s (%d)\n",
		829	$filename, length $data, scalar @{$av || []};#d#
803	return ($data, $av);	830	return ($data, $av);
804	}	831	}
805		832
806	#############################################################################	833	#############################################################################
807	# command handling &c	834	# command handling &c
…		…
832	=cut	859	=cut
833		860
834	sub register_extcmd {	861	sub register_extcmd {
835	my ($name, $cb) = @_;	862	my ($name, $cb) = @_;
836		863
837	my $caller = caller;
838	#warn "registering extcmd '$name' to '$caller'";
839
840	$EXTCMD{$name} = [$cb, $caller];	864	$EXTCMD{$name} = $cb;
841	}	865	}
842		866
843	cf::player->attach (	867	cf::player->attach (
844	on_command => sub {	868	on_command => sub {
845	my ($pl, $name, $params) = @_;	869	my ($pl, $name, $params) = @_;
…		…
858		882
859	my $msg = eval { from_json $buf };	883	my $msg = eval { from_json $buf };
860		884
861	if (ref $msg) {	885	if (ref $msg) {
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	886	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
863	if (my %reply = $cb->[0]->($pl, $msg)) {	887	if (my %reply = $cb->($pl, $msg)) {
864	$pl->ext_reply ($msg->{msgid}, %reply);	888	$pl->ext_reply ($msg->{msgid}, %reply);
865	}	889	}
866	}	890	}
867	} else {	891	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	892	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
870		894
871	cf::override;	895	cf::override;
872	},	896	},
873	);	897	);
874		898
875	sub register {
876	my ($base, $pkg) = @_;
877
878	#TODO
879	}
880
881	sub load_extension {	899	sub load_extension {
882	my ($path) = @_;	900	my ($path) = @_;
883		901
884	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	902	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
885	my $base = $1;	903	my $base = $1;
886	my $pkg = $1;	904	my $pkg = $1;
887	$pkg =~ s/[^[:word:]]/_/g;	905	$pkg =~ s/[^[:word:]]/_/g;
888	$pkg = "ext::$pkg";	906	$pkg = "ext::$pkg";
889		907
890	warn "loading '$path' into '$pkg'\n";	908	warn "... loading '$path' into '$pkg'\n";
891		909
892	open my $fh, "<:utf8", $path	910	open my $fh, "<:utf8", $path
893	or die "$path: $!";	911	or die "$path: $!";
894		912
895	my $source =	913	my $source =
896	"package $pkg; use strict; use utf8;\n"	914	"package $pkg; use strict; use utf8;\n"
897	. "#line 1 \"$path\"\n{\n"	915	. "#line 1 \"$path\"\n{\n"
898	. (do { local $/; <$fh> })	916	. (do { local $/; <$fh> })
899	. "\n};\n1";	917	. "\n};\n1";
900		918
901	eval $source	919	unless (eval $source) {
902	or die $@ ? "$path: $@\n"	920	my $msg = $@ ? "$path: $@\n"
903	: "extension disabled.\n";	921	: "extension disabled.\n";
904		922	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
905	push @exts, $pkg;	923	warn $@;
906	$ext_pkg{$base} = $pkg;	924	warn "mandatory extension failed to load, exiting.\n";
907		925	exit 1;
908	# no strict 'refs';	926	}
909	# @{"$pkg\::ISA"} = ext::;	927	die $@;
910
911	register $base, $pkg;
912	}
913
914	sub unload_extension {
915	my ($pkg) = @_;
916
917	warn "removing extension $pkg\n";
918
919	# remove hooks
920	#TODO
921	# for my $idx (0 .. $#PLUGIN_EVENT) {
922	# delete $hook[$idx]{$pkg};
923	# }	928	}
924		929
925	# remove commands	930	push @EXTS, $pkg;
926	for my $name (keys %COMMAND) {
927	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
928
929	if (@cb) {
930	$COMMAND{$name} = \@cb;
931	} else {
932	delete $COMMAND{$name};
933	}
934	}
935
936	# remove extcmds
937	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
938	delete $EXTCMD{$name};
939	}
940
941	if (my $cb = $pkg->can ("unload")) {
942	eval {
943	$cb->($pkg);
944	1
945	} or warn "$pkg unloaded, but with errors: $@";
946	}
947
948	Symbol::delete_package $pkg;
949	}	931	}
950		932
951	sub load_extensions {	933	sub load_extensions {
952	for my $ext (<$LIBDIR/*.ext>) {	934	for my $ext (<$LIBDIR/*.ext>) {
953	next unless -r $ext;	935	next unless -r $ext;
…		…
957	} or warn "$ext not loaded: $@";	939	} or warn "$ext not loaded: $@";
958	}	940	}
959	}	941	}
960		942
961	#############################################################################	943	#############################################################################
962	# load/save/clean perl data associated with a map
963		944
964	*cf::mapsupport::on_clean = sub {	945	=head2 CORE EXTENSIONS
		946
		947	Functions and methods that extend core crossfire objects.
		948
		949	=cut
		950
		951	package cf::player;
		952
		953	use Coro::AIO;
		954
		955	=head3 cf::player
		956
		957	=over 4
		958
		959	=item cf::player::find $login
		960
		961	Returns the given player object, loading it if necessary (might block).
		962
		963	=cut
		964
		965	sub playerdir($) {
		966	cf::localdir
		967	. "/"
		968	. cf::playerdir
		969	. "/"
		970	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		971	}
		972
		973	sub path($) {
		974	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		975
		976	(playerdir $login) . "/$login.pl"
		977	}
		978
		979	sub find_active($) {
		980	$cf::PLAYER{$_[0]}
		981	and $cf::PLAYER{$_[0]}->active
		982	and $cf::PLAYER{$_[0]}
		983	}
		984
		985	sub exists($) {
		986	my ($login) = @_;
		987
		988	$cf::PLAYER{$login}
		989	or cf::sync_job { !aio_stat path $login }
		990	}
		991
		992	sub find($) {
		993	return $cf::PLAYER{$_[0]} || do {
		994	my $login = $_[0];
		995
		996	my $guard = cf::lock_acquire "user_find:$login";
		997
		998	$cf::PLAYER{$_[0]} || do {
		999	my $pl = load_pl path $login
		1000	or return;
		1001	$cf::PLAYER{$login} = $pl
		1002	}
		1003	}
		1004	}
		1005
		1006	sub save($) {
		1007	my ($pl) = @_;
		1008
		1009	return if $pl->{deny_save};
		1010
		1011	my $path = path $pl;
		1012	my $guard = cf::lock_acquire "user_save:$path";
		1013
		1014	return if $pl->{deny_save};
		1015
		1016	aio_mkdir playerdir $pl, 0770;
		1017	$pl->{last_save} = $cf::RUNTIME;
		1018
		1019	$pl->save_pl ($path);
		1020	Coro::cede;
		1021	}
		1022
		1023	sub new($) {
		1024	my ($login) = @_;
		1025
		1026	my $self = create;
		1027
		1028	$self->ob->name ($login);
		1029	$self->{deny_save} = 1;
		1030
		1031	$cf::PLAYER{$login} = $self;
		1032
		1033	$self
		1034	}
		1035
		1036	=item $pl->quit_character
		1037
		1038	Nukes the player without looking back. If logged in, the connection will
		1039	be destroyed. May block for a long time.
		1040
		1041	=cut
		1042
		1043	sub quit_character {
		1044	my ($pl) = @_;
		1045
		1046	$pl->{deny_save} = 1;
		1047	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1048
		1049	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1050	$pl->deactivate;
		1051	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1052	$pl->ns->destroy if $pl->ns;
		1053
		1054	my $path = playerdir $pl;
		1055	my $temp = "$path~$cf::RUNTIME~deleting~";
		1056	aio_rename $path, $temp;
		1057	delete $cf::PLAYER{$pl->ob->name};
		1058	$pl->destroy;
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item cf::player::list_logins
		1063
		1064	Returns am arrayref of all valid playernames in the system, can take a
		1065	while and may block, so not sync_job-capable, ever.
		1066
		1067	=cut
		1068
		1069	sub list_logins {
		1070	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1071	or return [];
		1072
		1073	my @logins;
		1074
		1075	for my $login (@$dirs) {
		1076	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1077	aio_read $fh, 0, 512, my $buf, 0 or next;
		1078	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1079
		1080	utf8::decode $login;
		1081	push @logins, $login;
		1082	}
		1083
		1084	\@logins
		1085	}
		1086
		1087	=item $player->maps
		1088
		1089	Returns an arrayref of map paths that are private for this
		1090	player. May block.
		1091
		1092	=cut
		1093
		1094	sub maps($) {
		1095	my ($pl) = @_;
		1096
		1097	$pl = ref $pl ? $pl->ob->name : $pl;
		1098
		1099	my $files = aio_readdir playerdir $pl
		1100	or return;
		1101
		1102	my @paths;
		1103
		1104	for (@$files) {
		1105	utf8::decode $_;
		1106	next if /\.(?:pl|pst)$/;
		1107	next unless /^$PATH_SEP/o;
		1108
		1109	push @paths, cf::map::normalise "~$pl/$_";
		1110	}
		1111
		1112	\@paths
		1113	}
		1114
		1115	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1116
		1117	Sends an ext reply to the player.
		1118
		1119	=cut
		1120
		1121	sub ext_reply($$$%) {
		1122	my ($self, $id, %msg) = @_;
		1123
		1124	$msg{msgid} = $id;
		1125
		1126	$self->send ("ext " . cf::to_json \%msg);
		1127	}
		1128
		1129	package cf;
		1130
		1131	=back
		1132
		1133
		1134	=head3 cf::map
		1135
		1136	=over 4
		1137
		1138	=cut
		1139
		1140	package cf::map;
		1141
		1142	use Fcntl;
		1143	use Coro::AIO;
		1144
		1145	use overload
		1146	'""' => \&as_string,
		1147	fallback => 1;
		1148
		1149	our $MAX_RESET = 3600;
		1150	our $DEFAULT_RESET = 3000;
		1151
		1152	sub generate_random_map {
		1153	my ($self, $rmp) = @_;
		1154	# mit "rum" bekleckern, nicht
		1155	$self->_create_random_map (
		1156	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1157	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1158	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1159	$rmp->{exit_on_final_map},
		1160	$rmp->{xsize}, $rmp->{ysize},
		1161	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1162	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1163	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1164	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1165	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1166	(cf::region::find $rmp->{region}), $rmp->{custom}
		1167	)
		1168	}
		1169
		1170	=item cf::map->register ($regex, $prio)
		1171
		1172	Register a handler for the map path matching the given regex at the
		1173	givne priority (higher is better, built-in handlers have priority 0, the
		1174	default).
		1175
		1176	=cut
		1177
		1178	sub register {
		1179	my (undef, $regex, $prio) = @_;
		1180	my $pkg = caller;
		1181
		1182	no strict;
		1183	push @{"$pkg\::ISA"}, __PACKAGE__;
		1184
		1185	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1186	}
		1187
		1188	# also paths starting with '/'
		1189	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1190
		1191	sub thawer_merge {
		1192	my ($self, $merge) = @_;
		1193
		1194	# we have to keep some variables in memory intact
		1195	local $self->{path};
		1196	local $self->{load_path};
		1197	local $self->{deny_save};
		1198	local $self->{deny_reset};
		1199
		1200	$self->SUPER::thawer_merge ($merge);
		1201	}
		1202
		1203	sub normalise {
		1204	my ($path, $base) = @_;
		1205
		1206	$path = "$path"; # make sure its a string
		1207
		1208	$path =~ s/\.map$//;
		1209
		1210	# map plan:
		1211	#
		1212	# /! non-realised random map exit (special hack!)
		1213	# {... are special paths that are not being touched
		1214	# ?xxx/... are special absolute paths
		1215	# ?random/... random maps
		1216	# /... normal maps
		1217	# ~user/... per-player map of a specific user
		1218
		1219	$path =~ s/$PATH_SEP/\//go;
		1220
		1221	# treat it as relative path if it starts with
		1222	# something that looks reasonable
		1223	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1224	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1225
		1226	$base =~ s{[^/]+/?$}{};
		1227	$path = "$base/$path";
		1228	}
		1229
		1230	for ($path) {
		1231	redo if s{//}{/};
		1232	redo if s{/\.?/}{/};
		1233	redo if s{/[^/]+/\.\./}{/};
		1234	}
		1235
		1236	$path
		1237	}
		1238
		1239	sub new_from_path {
		1240	my (undef, $path, $base) = @_;
		1241
		1242	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1243
		1244	$path = normalise $path, $base;
		1245
		1246	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1247	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1248	my $self = bless cf::map::new, $pkg;
		1249	$self->{path} = $path; $self->path ($path);
		1250	$self->init; # pass $1 etc.
		1251	return $self;
		1252	}
		1253	}
		1254
		1255	Carp::carp "unable to resolve path '$path' (base '$base').";
		1256	()
		1257	}
		1258
		1259	sub init {
		1260	my ($self) = @_;
		1261
		1262	$self
		1263	}
		1264
		1265	sub as_string {
		1266	my ($self) = @_;
		1267
		1268	"$self->{path}"
		1269	}
		1270
		1271	# the displayed name, this is a one way mapping
		1272	sub visible_name {
		1273	&as_string
		1274	}
		1275
		1276	# the original (read-only) location
		1277	sub load_path {
		1278	my ($self) = @_;
		1279
		1280	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1281	}
		1282
		1283	# the temporary/swap location
		1284	sub save_path {
		1285	my ($self) = @_;
		1286
		1287	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1288	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1289	}
		1290
		1291	# the unique path, undef == no special unique path
		1292	sub uniq_path {
		1293	my ($self) = @_;
		1294
		1295	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1296	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1297	}
		1298
		1299	# and all this just because we cannot iterate over
		1300	# all maps in C++...
		1301	sub change_all_map_light {
		1302	my ($change) = @_;
		1303
		1304	$_->change_map_light ($change)
		1305	for grep $_->outdoor, values %cf::MAP;
		1306	}
		1307
		1308	sub unlink_save {
		1309	my ($self) = @_;
		1310
		1311	utf8::encode (my $save = $self->save_path);
		1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1314
		1315	#d#TODO remove .map and also nuke
		1316	$save =~ s/\.map// or return;#d#
		1317	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1318	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1319	}
		1320
		1321	sub load_header_from($) {
		1322	my ($self, $path) = @_;
		1323
		1324	utf8::encode $path;
		1325	#aio_open $path, O_RDONLY, 0
		1326	# or return;
		1327
		1328	$self->_load_header ($path)
		1329	or return;
		1330
		1331	$self->{load_path} = $path;
		1332
		1333	1
		1334	}
		1335
		1336	sub load_header_orig {
		1337	my ($self) = @_;
		1338
		1339	$self->load_header_from ($self->load_path)
		1340	}
		1341
		1342	sub load_header_temp {
		1343	my ($self) = @_;
		1344
		1345	$self->load_header_from ($self->save_path)
		1346	}
		1347
		1348	sub prepare_temp {
		1349	my ($self) = @_;
		1350
		1351	$self->last_access ((delete $self->{last_access})
		1352	|| $cf::RUNTIME); #d#
		1353	# safety
		1354	$self->{instantiate_time} = $cf::RUNTIME
		1355	if $self->{instantiate_time} > $cf::RUNTIME;
		1356	}
		1357
		1358	sub prepare_orig {
		1359	my ($self) = @_;
		1360
		1361	$self->{load_original} = 1;
		1362	$self->{instantiate_time} = $cf::RUNTIME;
		1363	$self->last_access ($cf::RUNTIME);
		1364	$self->instantiate;
		1365	}
		1366
		1367	sub load_header {
		1368	my ($self) = @_;
		1369
		1370	if ($self->load_header_temp) {
		1371	$self->prepare_temp;
		1372	} else {
		1373	$self->load_header_orig
		1374	or return;
		1375	$self->prepare_orig;
		1376	}
		1377
		1378	1
		1379	}
		1380
		1381	sub find;
		1382	sub find {
		1383	my ($path, $origin) = @_;
		1384
		1385	$path = normalise $path, $origin && $origin->path;
		1386
		1387	cf::lock_wait "map_find:$path";
		1388
		1389	$cf::MAP{$path} || do {
		1390	my $guard = cf::lock_acquire "map_find:$path";
		1391	my $map = new_from_path cf::map $path
		1392	or return;
		1393
		1394	$map->{last_save} = $cf::RUNTIME;
		1395
		1396	$map->load_header
		1397	or return;
		1398
		1399	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1400	# doing this can freeze the server in a sync job, obviously
		1401	#$cf::WAIT_FOR_TICK->wait;
		1402	$map->reset;
		1403	undef $guard;
		1404	return find $path;
		1405	}
		1406
		1407	$cf::MAP{$path} = $map
		1408	}
		1409	}
		1410
		1411	sub pre_load { }
		1412	sub post_load { }
		1413
		1414	sub load {
		1415	my ($self) = @_;
		1416
		1417	local $self->{deny_reset} = 1; # loading can take a long time
		1418
		1419	my $path = $self->{path};
		1420	my $guard = cf::lock_acquire "map_load:$path";
		1421
		1422	return if $self->in_memory != cf::MAP_SWAPPED;
		1423
		1424	$self->in_memory (cf::MAP_LOADING);
		1425
		1426	$self->alloc;
		1427
		1428	$self->pre_load;
		1429
		1430	$self->_load_objects ($self->{load_path}, 1)
		1431	or return;
		1432
		1433	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1434	if delete $self->{load_original};
		1435
		1436	if (my $uniq = $self->uniq_path) {
		1437	utf8::encode $uniq;
		1438	if (aio_open $uniq, O_RDONLY, 0) {
		1439	$self->clear_unique_items;
		1440	$self->_load_objects ($uniq, 0);
		1441	}
		1442	}
		1443
		1444	Coro::cede;
		1445
		1446	# now do the right thing for maps
		1447	$self->link_multipart_objects;
		1448
		1449	unless ($self->{deny_activate}) {
		1450	$self->decay_objects;
		1451	$self->fix_auto_apply;
		1452	$self->update_buttons;
		1453	Coro::cede;
		1454	$self->set_darkness_map;
		1455	$self->difficulty ($self->estimate_difficulty)
		1456	unless $self->difficulty;
		1457	Coro::cede;
		1458	$self->activate;
		1459	}
		1460
		1461	$self->post_load;
		1462
		1463	$self->in_memory (cf::MAP_IN_MEMORY);
		1464	}
		1465
		1466	sub customise_for {
		1467	my ($self, $ob) = @_;
		1468
		1469	return find "~" . $ob->name . "/" . $self->{path}
		1470	if $self->per_player;
		1471
		1472	$self
		1473	}
		1474
		1475	# find and load all maps in the 3x3 area around a map
		1476	sub load_diag {
965	my ($map) = @_;	1477	my ($map) = @_;
966		1478
967	my $path = $map->tmpname;	1479	my @diag; # diagonal neighbours
968	defined $path or return;
969		1480
970	unlink "$path.pst";	1481	for (0 .. 3) {
971	};	1482	my $neigh = $map->tile_path ($_)
		1483	or next;
		1484	$neigh = find $neigh, $map
		1485	or next;
		1486	$neigh->load;
972		1487
973	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1488	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1489	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1490	}
974		1491
975	#############################################################################	1492	for (@diag) {
976	# load/save perl data associated with player->ob objects	1493	my $neigh = find @$_
977		1494	or next;
978	sub all_objects(@) {	1495	$neigh->load;
979	@_, map all_objects ($_->inv), @_	1496	}
980	}	1497	}
981		1498
982	# TODO: compatibility cruft, remove when no longer needed	1499	sub find_sync {
983	cf::player->attach (	1500	my ($path, $origin) = @_;
984	on_load => sub {
985	my ($pl, $path) = @_;
986		1501
987	for my $o (all_objects $pl->ob) {	1502	cf::sync_job { find $path, $origin }
988	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1503	}
989	$o->set_ob_key_value ("_perl_data");
990		1504
991	%$o = %{ Storable::thaw pack "H*", $value };	1505	sub do_load_sync {
		1506	my ($map) = @_;
		1507
		1508	cf::sync_job { $map->load };
		1509	}
		1510
		1511	our %MAP_PREFETCH;
		1512	our $MAP_PREFETCHER = undef;
		1513
		1514	sub find_async {
		1515	my ($path, $origin) = @_;
		1516
		1517	$path = normalise $path, $origin && $origin->{path};
		1518
		1519	if (my $map = $cf::MAP{$path}) {
		1520	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1521	}
		1522
		1523	undef $MAP_PREFETCH{$path};
		1524	$MAP_PREFETCHER ||= cf::async {
		1525	while (%MAP_PREFETCH) {
		1526	for my $path (keys %MAP_PREFETCH) {
		1527	my $map = find $path
		1528	or next;
		1529	$map->load;
		1530
		1531	delete $MAP_PREFETCH{$path};
992	}	1532	}
993	}	1533	}
		1534	undef $MAP_PREFETCHER;
		1535	};
		1536	$MAP_PREFETCHER->prio (6);
		1537
		1538	()
		1539	}
		1540
		1541	sub save {
		1542	my ($self) = @_;
		1543
		1544	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1545
		1546	$self->{last_save} = $cf::RUNTIME;
		1547
		1548	return unless $self->dirty;
		1549
		1550	my $save = $self->save_path; utf8::encode $save;
		1551	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1552
		1553	$self->{load_path} = $save;
		1554
		1555	return if $self->{deny_save};
		1556
		1557	local $self->{last_access} = $self->last_access;#d#
		1558
		1559	cf::async {
		1560	$_->contr->save for $self->players;
		1561	};
		1562
		1563	if ($uniq) {
		1564	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1565	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1566	} else {
		1567	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
994	},	1568	}
995	);	1569	}
996		1570
997	#############################################################################	1571	sub swap_out {
		1572	my ($self) = @_;
998		1573
999	=head2 CORE EXTENSIONS	1574	# save first because save cedes
		1575	$self->save;
1000		1576
1001	Functions and methods that extend core crossfire objects.	1577	my $lock = cf::lock_acquire "map_data:" . $self->path;
1002		1578
1003	=head3 cf::player	1579	return if $self->players;
		1580	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1581	return if $self->{deny_save};
		1582
		1583	$self->clear;
		1584	$self->in_memory (cf::MAP_SWAPPED);
		1585	}
		1586
		1587	sub reset_at {
		1588	my ($self) = @_;
		1589
		1590	# TODO: safety, remove and allow resettable per-player maps
		1591	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1592	return 1e99 if $self->{deny_reset};
		1593
		1594	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1595	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1596
		1597	$time + $to
		1598	}
		1599
		1600	sub should_reset {
		1601	my ($self) = @_;
		1602
		1603	$self->reset_at <= $cf::RUNTIME
		1604	}
		1605
		1606	sub reset {
		1607	my ($self) = @_;
		1608
		1609	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1610
		1611	return if $self->players;
		1612	return if $self->isa ("ext::map_per_player");#d#
		1613
		1614	warn "resetting map ", $self->path;#d#
		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617
		1618	# need to save uniques path
		1619	unless ($self->{deny_save}) {
		1620	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1621
		1622	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1623	if $uniq;
		1624	}
		1625
		1626	delete $cf::MAP{$self->path};
		1627
		1628	$self->clear;
		1629
		1630	$_->clear_links_to ($self) for values %cf::MAP;
		1631
		1632	$self->unlink_save;
		1633	$self->destroy;
		1634	}
		1635
		1636	my $nuke_counter = "aaaa";
		1637
		1638	sub nuke {
		1639	my ($self) = @_;
		1640
		1641	delete $cf::MAP{$self->path};
		1642
		1643	$self->unlink_save;
		1644
		1645	bless $self, "cf::map";
		1646	delete $self->{deny_reset};
		1647	$self->{deny_save} = 1;
		1648	$self->reset_timeout (1);
		1649	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1650
		1651	$cf::MAP{$self->path} = $self;
		1652
		1653	$self->reset; # polite request, might not happen
		1654	}
		1655
		1656	=item cf::map::unique_maps
		1657
		1658	Returns an arrayref of paths of all shared maps that have
		1659	instantiated unique items. May block.
		1660
		1661	=cut
		1662
		1663	sub unique_maps() {
		1664	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1665	or return;
		1666
		1667	my @paths;
		1668
		1669	for (@$files) {
		1670	utf8::decode $_;
		1671	next if /\.pst$/;
		1672	next unless /^$PATH_SEP/o;
		1673
		1674	push @paths, cf::map::normalise $_;
		1675	}
		1676
		1677	\@paths
		1678	}
		1679
		1680	package cf;
		1681
		1682	=back
		1683
		1684	=head3 cf::object
		1685
		1686	=cut
		1687
		1688	package cf::object;
1004		1689
1005	=over 4	1690	=over 4
1006		1691
1007	=item cf::player::exists $login	1692	=item $ob->inv_recursive
1008		1693
1009	Returns true when the given account exists.	1694	Returns the inventory of the object _and_ their inventories, recursively.
1010		1695
1011	=cut	1696	=cut
1012		1697
1013	sub cf::player::exists($) {	1698	sub inv_recursive_;
1014	cf::player::find $_[0]	1699	sub inv_recursive_ {
1015	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1700	map { $_, inv_recursive_ $_->inv } @_
1016	}	1701	}
1017		1702
1018	=item $player->ext_reply ($msgid, $msgtype, %msg)	1703	sub inv_recursive {
1019		1704	inv_recursive_ inv $_[0]
1020	Sends an ext reply to the player.
1021
1022	=cut
1023
1024	sub cf::player::ext_reply($$$%) {
1025	my ($self, $id, %msg) = @_;
1026
1027	$msg{msgid} = $id;
1028
1029	$self->send ("ext " . to_json \%msg);
1030	}	1705	}
		1706
		1707	package cf;
1031		1708
1032	=back	1709	=back
1033		1710
1034	=head3 cf::object::player	1711	=head3 cf::object::player
1035		1712
…		…
1073	(ref $cf::CFG{"may_$access"}	1750	(ref $cf::CFG{"may_$access"}
1074	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1751	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1075	: $cf::CFG{"may_$access"})	1752	: $cf::CFG{"may_$access"})
1076	}	1753	}
1077		1754
		1755	=item $player_object->enter_link
		1756
		1757	Freezes the player and moves him/her to a special map (C<{link}>).
		1758
		1759	The player should be reasonably safe there for short amounts of time. You
		1760	I<MUST> call C<leave_link> as soon as possible, though.
		1761
		1762	Will never block.
		1763
		1764	=item $player_object->leave_link ($map, $x, $y)
		1765
		1766	Moves the player out of the special C<{link}> map onto the specified
		1767	map. If the map is not valid (or omitted), the player will be moved back
		1768	to the location he/she was before the call to C<enter_link>, or, if that
		1769	fails, to the emergency map position.
		1770
		1771	Might block.
		1772
		1773	=cut
		1774
		1775	sub link_map {
		1776	unless ($LINK_MAP) {
		1777	$LINK_MAP = cf::map::find "{link}"
		1778	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1779	$LINK_MAP->load;
		1780	}
		1781
		1782	$LINK_MAP
		1783	}
		1784
		1785	sub cf::object::player::enter_link {
		1786	my ($self) = @_;
		1787
		1788	$self->deactivate_recursive;
		1789
		1790	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1791
		1792	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1793	if $self->map;
		1794
		1795	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1796	}
		1797
		1798	sub cf::object::player::leave_link {
		1799	my ($self, $map, $x, $y) = @_;
		1800
		1801	my $link_pos = delete $self->{_link_pos};
		1802
		1803	unless ($map) {
		1804	# restore original map position
		1805	($map, $x, $y) = @{ $link_pos || [] };
		1806	$map = cf::map::find $map;
		1807
		1808	unless ($map) {
		1809	($map, $x, $y) = @$EMERGENCY_POSITION;
		1810	$map = cf::map::find $map
		1811	or die "FATAL: cannot load emergency map\n";
		1812	}
		1813	}
		1814
		1815	($x, $y) = (-1, -1)
		1816	unless (defined $x) && (defined $y);
		1817
		1818	# use -1 or undef as default coordinates, not 0, 0
		1819	($x, $y) = ($map->enter_x, $map->enter_y)
		1820	if $x <=0 && $y <= 0;
		1821
		1822	$map->load;
		1823	$map->load_diag;
		1824
		1825	return unless $self->contr->active;
		1826	$self->activate_recursive;
		1827	$self->enter_map ($map, $x, $y);
		1828	}
		1829
		1830	cf::player->attach (
		1831	on_logout => sub {
		1832	my ($pl) = @_;
		1833
		1834	# abort map switching before logout
		1835	if ($pl->ob->{_link_pos}) {
		1836	cf::sync_job {
		1837	$pl->ob->leave_link
		1838	};
		1839	}
		1840	},
		1841	on_login => sub {
		1842	my ($pl) = @_;
		1843
		1844	# try to abort aborted map switching on player login :)
		1845	# should happen only on crashes
		1846	if ($pl->ob->{_link_pos}) {
		1847	$pl->ob->enter_link;
		1848	(async {
		1849	# we need this sleep as the login has a concurrent enter_exit running
		1850	# and this sleep increases chances of the player not ending up in scorn
		1851	$pl->ob->reply (undef,
		1852	"There was an internal problem at your last logout, "
		1853	. "the server will try to bring you to your intended destination in a second.",
		1854	cf::NDI_RED);
		1855	Coro::Timer::sleep 1;
		1856	$pl->ob->leave_link;
		1857	})->prio (2);
		1858	}
		1859	},
		1860	);
		1861
		1862	=item $player_object->goto ($path, $x, $y)
		1863
		1864	=cut
		1865
		1866	sub cf::object::player::goto {
		1867	my ($self, $path, $x, $y) = @_;
		1868
		1869	$self->enter_link;
		1870
		1871	(async {
		1872	my $map = eval {
		1873	my $map = cf::map::find $path;
		1874	$map = $map->customise_for ($self) if $map;
		1875	$map
		1876	} or
		1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1878
		1879	$self->leave_link ($map, $x, $y);
		1880	})->prio (1);
		1881	}
		1882
		1883	=item $player_object->enter_exit ($exit_object)
		1884
		1885	=cut
		1886
		1887	sub parse_random_map_params {
		1888	my ($spec) = @_;
		1889
		1890	my $rmp = { # defaults
		1891	xsize => (cf::rndm 15, 40),
		1892	ysize => (cf::rndm 15, 40),
		1893	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1894	#layout => string,
		1895	};
		1896
		1897	for (split /\n/, $spec) {
		1898	my ($k, $v) = split /\s+/, $_, 2;
		1899
		1900	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1901	}
		1902
		1903	$rmp
		1904	}
		1905
		1906	sub prepare_random_map {
		1907	my ($exit) = @_;
		1908
		1909	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1910
		1911	# all this does is basically replace the /! path by
		1912	# a new random map path (?random/...) with a seed
		1913	# that depends on the exit object
		1914
		1915	my $rmp = parse_random_map_params $exit->msg;
		1916
		1917	if ($exit->map) {
		1918	$rmp->{region} = $exit->region->name;
		1919	$rmp->{origin_map} = $exit->map->path;
		1920	$rmp->{origin_x} = $exit->x;
		1921	$rmp->{origin_y} = $exit->y;
		1922	}
		1923
		1924	$rmp->{random_seed} ||= $exit->random_seed;
		1925
		1926	my $data = cf::to_json $rmp;
		1927	my $md5 = Digest::MD5::md5_hex $data;
		1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1929
		1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1931	aio_write $fh, 0, (length $data), $data, 0;
		1932	undef $fh;
		1933	aio_rename "$meta~", $meta;
		1934
		1935	$exit->slaying ("?random/$md5");
		1936	$exit->msg (undef);
		1937	}
		1938	}
		1939
		1940	sub cf::object::player::enter_exit {
		1941	my ($self, $exit) = @_;
		1942
		1943	return unless $self->type == cf::PLAYER;
		1944
		1945	if ($exit->slaying eq "/!") {
		1946	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1947	cf::sync_job { prepare_random_map $exit };
		1948	}
		1949
		1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1951	my $hp = $exit->stats->hp;
		1952	my $sp = $exit->stats->sp;
		1953
		1954	$self->enter_link;
		1955
		1956	(async {
		1957	$self->deactivate_recursive; # just to be sure
		1958	unless (eval {
		1959	$self->goto ($slaying, $hp, $sp);
		1960
		1961	1;
		1962	}) {
		1963	$self->message ("Something went wrong deep within the crossfire server. "
		1964	. "I'll try to bring you back to the map you were before. "
		1965	. "Please report this to the dungeon master!",
		1966	cf::NDI_UNIQUE | cf::NDI_RED);
		1967
		1968	warn "ERROR in enter_exit: $@";
		1969	$self->leave_link;
		1970	}
		1971	})->prio (1);
		1972	}
		1973
1078	=head3 cf::client	1974	=head3 cf::client
1079		1975
1080	=over 4	1976	=over 4
1081		1977
1082	=item $client->send_drawinfo ($text, $flags)	1978	=item $client->send_drawinfo ($text, $flags)
…		…
1125	on_reply => sub {	2021	on_reply => sub {
1126	my ($ns, $msg) = @_;	2022	my ($ns, $msg) = @_;
1127		2023
1128	# this weird shuffling is so that direct followup queries	2024	# this weird shuffling is so that direct followup queries
1129	# get handled first	2025	# get handled first
1130	my $queue = delete $ns->{query_queue};	2026	my $queue = delete $ns->{query_queue}
		2027	or return; # be conservative, not sure how that can happen, but we saw a crash here
1131		2028
1132	(shift @$queue)->[1]->($msg);	2029	(shift @$queue)->[1]->($msg);
		2030	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1133		2031
1134	push @{ $ns->{query_queue} }, @$queue;	2032	push @{ $ns->{query_queue} }, @$queue;
1135		2033
1136	if (@{ $ns->{query_queue} } == @$queue) {	2034	if (@{ $ns->{query_queue} } == @$queue) {
1137	if (@$queue) {	2035	if (@$queue) {
…		…
1141	}	2039	}
1142	}	2040	}
1143	},	2041	},
1144	);	2042	);
1145		2043
1146	=item $client->coro (\&cb)	2044	=item $client->async (\&cb)
1147		2045
1148	Create a new coroutine, running the specified callback. The coroutine will	2046	Create a new coroutine, running the specified callback. The coroutine will
1149	be automatically cancelled when the client gets destroyed (e.g. on logout,	2047	be automatically cancelled when the client gets destroyed (e.g. on logout,
1150	or loss of connection).	2048	or loss of connection).
1151		2049
1152	=cut	2050	=cut
1153		2051
1154	sub cf::client::coro {	2052	sub cf::client::async {
1155	my ($self, $cb) = @_;	2053	my ($self, $cb) = @_;
1156		2054
1157	my $coro; $coro = async {	2055	my $coro = &Coro::async ($cb);
1158	eval {
1159	$cb->();
1160	};
1161	warn $@ if $@;
1162	};
1163		2056
1164	$coro->on_destroy (sub {	2057	$coro->on_destroy (sub {
1165	delete $self->{_coro}{$coro+0};	2058	delete $self->{_coro}{$coro+0};
1166	});	2059	});
1167		2060
…		…
1303	The parameter C<$family> should best start with the name of the extension	2196	The parameter C<$family> should best start with the name of the extension
1304	using it, it should be unique.	2197	using it, it should be unique.
1305		2198
1306	=over 4	2199	=over 4
1307		2200
1308	=item $hashref = cf::db_get $family
1309
1310	Return a hashref for use by the extension C<$family>, which can be
1311	modified. After modifications, you have to call C<cf::db_dirty> or
1312	C<cf::db_sync>.
1313
1314	=item $value = cf::db_get $family => $key	2201	=item $value = cf::db_get $family => $key
1315		2202
1316	Returns a single value from the database	2203	Returns a single value from the database.
1317
1318	=item cf::db_put $family => $hashref
1319
1320	Stores the given family hashref into the database. Updates are delayed, if
1321	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1322		2204
1323	=item cf::db_put $family => $key => $value	2205	=item cf::db_put $family => $key => $value
1324		2206
1325	Stores the given C<$value> in the family hash. Updates are delayed, if you	2207	Stores the given C<$value> in the family.
1326	want the data to be synced to disk immediately, use C<cf::db_sync>.
1327
1328	=item cf::db_dirty
1329
1330	Marks the database as dirty, to be updated at a later time.
1331
1332	=item cf::db_sync
1333
1334	Immediately write the database to disk I<if it is dirty>.
1335		2208
1336	=cut	2209	=cut
1337		2210
1338	our $DB;	2211	our $DB;
1339		2212
1340	{	2213	sub db_init {
		2214	unless ($DB) {
		2215	$DB = BDB::db_create $DB_ENV;
		2216
		2217	cf::sync_job {
		2218	eval {
		2219	$DB->set_flags (BDB::CHKSUM);
		2220
		2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2223	cf::cleanup "db_open(db): $!" if $!;
		2224	};
		2225	cf::cleanup "db_open(db): $@" if $@;
		2226	};
		2227
1341	my $path = cf::localdir . "/database.pst";	2228	my $path = cf::localdir . "/database.pst";
		2229	if (stat $path) {
		2230	cf::sync_job {
		2231	my $pst = Storable::retrieve $path;
1342		2232
1343	sub db_load() {	2233	cf::db_put (board => data => $pst->{board});
1344	warn "loading database $path\n";#d# remove later	2234	cf::db_put (guildrules => data => $pst->{guildrules});
1345	$DB = stat $path ? Storable::retrieve $path : { };	2235	cf::db_put (rent => balance => $pst->{rent}{balance});
1346	}	2236	BDB::db_env_txn_checkpoint $DB_ENV;
1347		2237
1348	my $pid;	2238	unlink $path;
1349
1350	sub db_save() {
1351	warn "saving database $path\n";#d# remove later
1352	waitpid $pid, 0 if $pid;
1353	if (0 == ($pid = fork)) {
1354	$DB->{_meta}{version} = 1;
1355	Storable::nstore $DB, "$path~";
1356	rename "$path~", $path;
1357	cf::_exit 0 if defined $pid;
1358	}	2239	};
1359	}
1360
1361	my $dirty;
1362
1363	sub db_sync() {
1364	db_save if $dirty;
1365	undef $dirty;
1366	}
1367
1368	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1369	db_sync;
1370	});
1371
1372	sub db_dirty() {
1373	$dirty = 1;
1374	$idle->start;
1375	}
1376
1377	sub db_get($;$) {
1378	@_ >= 2
1379	? $DB->{$_[0]}{$_[1]}
1380	: ($DB->{$_[0]} ||= { })
1381	}
1382
1383	sub db_put($$;$) {
1384	if (@_ >= 3) {
1385	$DB->{$_[0]}{$_[1]} = $_[2];
1386	} else {
1387	$DB->{$_[0]} = $_[1];
1388	}
1389	db_dirty;
1390	}
1391
1392	cf::global->attach (
1393	prio => 10000,
1394	on_cleanup => sub {
1395	db_sync;
1396	},	2240	}
1397	);	2241	}
		2242	}
		2243
		2244	sub db_get($$) {
		2245	my $key = "$_[0]/$_[1]";
		2246
		2247	cf::sync_job {
		2248	BDB::db_get $DB, undef, $key, my $data;
		2249
		2250	$! ? ()
		2251	: Compress::LZF::sthaw $data
		2252	}
		2253	}
		2254
		2255	sub db_put($$$) {
		2256	BDB::dbreq_pri 4;
		2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1398	}	2258	}
1399		2259
1400	#############################################################################	2260	#############################################################################
1401	# the server's main()	2261	# the server's init and main functions
		2262
		2263	sub load_resources {
		2264	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2265	or die "unable to load regions file\n";#d#
		2266	}
1402		2267
1403	sub cfg_load {	2268	sub cfg_load {
1404	open my $fh, "<:utf8", cf::confdir . "/config"	2269	open my $fh, "<:utf8", cf::confdir . "/config"
1405	or return;	2270	or return;
1406		2271
1407	local $/;	2272	local $/;
1408	*CFG = YAML::Syck::Load <$fh>;	2273	*CFG = YAML::Syck::Load <$fh>;
		2274
		2275	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2276
		2277	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2278	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2279
		2280	if (exists $CFG{mlockall}) {
		2281	eval {
		2282	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2283	and die "WARNING: m(un)lockall failed: $!\n";
		2284	};
		2285	warn $@ if $@;
		2286	}
		2287	}
		2288
		2289	sub init {
		2290	load_resources;
1409	}	2291	}
1410		2292
1411	sub main {	2293	sub main {
1412	# we must not ever block the main coroutine	2294	# we must not ever block the main coroutine
1413	local $Coro::idle = sub {	2295	local $Coro::idle = sub {
1414	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2296	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1415	(Coro::unblock_sub {	2297	(async {
1416	Event::one_event;	2298	Event::one_event;
1417	})->();	2299	})->prio (Coro::PRIO_MAX);
1418	};	2300	};
1419		2301
1420	cfg_load;	2302	cfg_load;
1421	db_load;	2303	db_init;
1422	load_extensions;	2304	load_extensions;
		2305
		2306	$TICK_WATCHER->start;
1423	Event::loop;	2307	Event::loop;
1424	}	2308	}
1425		2309
1426	#############################################################################	2310	#############################################################################
1427	# initialisation	2311	# initialisation and cleanup
1428		2312
		2313	# install some emergency cleanup handlers
		2314	BEGIN {
		2315	for my $signal (qw(INT HUP TERM)) {
		2316	Event->signal (
		2317	reentrant => 0,
		2318	data => WF_AUTOCANCEL,
		2319	signal => $signal,
		2320	prio => 0,
		2321	cb => sub {
		2322	cf::cleanup "SIG$signal";
		2323	},
		2324	);
		2325	}
		2326	}
		2327
		2328	sub emergency_save() {
		2329	my $freeze_guard = cf::freeze_mainloop;
		2330
		2331	warn "enter emergency perl save\n";
		2332
		2333	cf::sync_job {
		2334	# use a peculiar iteration method to avoid tripping on perl
		2335	# refcount bugs in for. also avoids problems with players
		2336	# and maps saved/destroyed asynchronously.
		2337	warn "begin emergency player save\n";
		2338	for my $login (keys %cf::PLAYER) {
		2339	my $pl = $cf::PLAYER{$login} or next;
		2340	$pl->valid or next;
		2341	$pl->save;
		2342	}
		2343	warn "end emergency player save\n";
		2344
		2345	warn "begin emergency map save\n";
		2346	for my $path (keys %cf::MAP) {
		2347	my $map = $cf::MAP{$path} or next;
		2348	$map->valid or next;
		2349	$map->save;
		2350	}
		2351	warn "end emergency map save\n";
		2352
		2353	warn "begin emergency database checkpoint\n";
		2354	BDB::db_env_txn_checkpoint $DB_ENV;
		2355	warn "end emergency database checkpoint\n";
		2356	};
		2357
		2358	warn "leave emergency perl save\n";
		2359	}
		2360
		2361	sub post_cleanup {
		2362	my ($make_core) = @_;
		2363
		2364	warn Carp::longmess "post_cleanup backtrace"
		2365	if $make_core;
		2366	}
		2367
1429	sub perl_reload() {	2368	sub reload() {
1430	# can/must only be called in main	2369	# can/must only be called in main
1431	if ($Coro::current != $Coro::main) {	2370	if ($Coro::current != $Coro::main) {
1432	warn "can only reload from main coroutine\n";	2371	warn "can only reload from main coroutine";
1433	return;	2372	return;
1434	}	2373	}
1435		2374
1436	warn "reloading...";	2375	warn "reloading...";
1437		2376
1438	local $FREEZE = 1;	2377	warn "cancelling server ticker";
		2378	$TICK_WATCHER->cancel;
		2379
1439	cf::emergency_save;	2380	cf::emergency_save;
1440		2381
1441	eval {	2382	eval {
1442	# if anything goes wrong in here, we should simply crash as we already saved	2383	# if anything goes wrong in here, we should simply crash as we already saved
1443		2384
1444	# cancel all watchers	2385	warn "cancelling all WF_AUTOCANCEL watchers";
1445	for (Event::all_watchers) {	2386	for (Event::all_watchers) {
1446	$_->cancel if $_->data & WF_AUTOCANCEL;	2387	$_->cancel if $_->data & WF_AUTOCANCEL;
1447	}	2388	}
1448		2389
		2390	warn "syncing database to disk";
		2391	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2392
		2393	warn "flushing outstanding aio requests";
		2394	for (;;) {
		2395	BDB::flush;
		2396	IO::AIO::flush;
		2397	Coro::cede;
		2398	last unless IO::AIO::nreqs || BDB::nreqs;
		2399	warn "iterate...";
		2400	}
		2401
1449	# cancel all extension coros	2402	warn "cancelling all extension coros";
1450	$_->cancel for values %EXT_CORO;	2403	$_->cancel for values %EXT_CORO;
1451	%EXT_CORO = ();	2404	%EXT_CORO = ();
1452		2405
1453	# unload all extensions	2406	warn "removing commands";
1454	for (@exts) {	2407	%COMMAND = ();
		2408
		2409	warn "removing ext commands";
		2410	%EXTCMD = ();
		2411
		2412	warn "unloading/nuking all extensions";
		2413	for my $pkg (@EXTS) {
1455	warn "unloading <$_>";	2414	warn "... unloading $pkg";
1456	unload_extension $_;	2415
		2416	if (my $cb = $pkg->can ("unload")) {
		2417	eval {
		2418	$cb->($pkg);
		2419	1
		2420	} or warn "$pkg unloaded, but with errors: $@";
1457	}	2421	}
1458		2422
		2423	warn "... nuking $pkg";
		2424	Symbol::delete_package $pkg;
		2425	}
		2426
1459	# unload all modules loaded from $LIBDIR	2427	warn "unloading all perl modules loaded from $LIBDIR";
1460	while (my ($k, $v) = each %INC) {	2428	while (my ($k, $v) = each %INC) {
1461	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2429	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1462		2430
1463	warn "removing <$k>";	2431	warn "... unloading $k";
1464	delete $INC{$k};	2432	delete $INC{$k};
1465		2433
1466	$k =~ s/\.pm$//;	2434	$k =~ s/\.pm$//;
1467	$k =~ s/\//::/g;	2435	$k =~ s/\//::/g;
1468		2436
…		…
1471	}	2439	}
1472		2440
1473	Symbol::delete_package $k;	2441	Symbol::delete_package $k;
1474	}	2442	}
1475		2443
1476	# sync database to disk
1477	cf::db_sync;
1478	IO::AIO::flush;
1479
1480	# get rid of safe::, as good as possible	2444	warn "getting rid of safe::, as good as possible";
1481	Symbol::delete_package "safe::$_"	2445	Symbol::delete_package "safe::$_"
1482	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2446	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1483		2447
1484	# remove register_script_function callbacks
1485	# TODO
1486
1487	# unload cf.pm "a bit"	2448	warn "unloading cf.pm \"a bit\"";
1488	delete $INC{"cf.pm"};	2449	delete $INC{"cf.pm"};
1489		2450
1490	# don't, removes xs symbols, too,	2451	# don't, removes xs symbols, too,
1491	# and global variables created in xs	2452	# and global variables created in xs
1492	#Symbol::delete_package __PACKAGE__;	2453	#Symbol::delete_package __PACKAGE__;
1493		2454
1494	# reload cf.pm	2455	warn "unload completed, starting to reload now";
		2456
1495	warn "reloading cf.pm";	2457	warn "reloading cf.pm";
1496	require cf;	2458	require cf;
1497	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2459	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1498		2460
1499	# load config and database again	2461	warn "loading config and database again";
1500	cf::cfg_load;	2462	cf::cfg_load;
1501	cf::db_load;
1502		2463
1503	# load extensions
1504	warn "load extensions";	2464	warn "loading extensions";
1505	cf::load_extensions;	2465	cf::load_extensions;
1506		2466
1507	# reattach attachments to objects	2467	warn "reattaching attachments to objects/players";
1508	warn "reattach";
1509	_global_reattach;	2468	_global_reattach;
		2469	warn "reattaching attachments to maps";
		2470	reattach $_ for values %MAP;
		2471
		2472	warn "loading reloadable resources";
		2473	load_resources;
		2474
		2475	warn "restarting server ticker";
		2476
		2477	$TICK_WATCHER->start;
1510	};	2478	};
1511		2479
1512	if ($@) {	2480	if ($@) {
1513	warn $@;	2481	warn $@;
1514	warn "error while reloading, exiting.";	2482	warn "error while reloading, exiting.";
1515	exit 1;	2483	exit 1;
1516	}	2484	}
1517		2485
1518	warn "reloaded successfully";	2486	warn "reloaded";
1519	};	2487	};
1520		2488
1521	#############################################################################	2489	our $RELOAD_WATCHER; # used only during reload
1522		2490
1523	unless ($LINK_MAP) {
1524	$LINK_MAP = cf::map::new;
1525
1526	$LINK_MAP->width (41);
1527	$LINK_MAP->height (41);
1528	$LINK_MAP->alloc;
1529	$LINK_MAP->path ("{link}");
1530	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1531	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1532	}
1533
1534	register "<global>", __PACKAGE__;
1535
1536	register_command "perl-reload" => sub {	2491	register_command "reload" => sub {
1537	my ($who, $arg) = @_;	2492	my ($who, $arg) = @_;
1538		2493
1539	if ($who->flag (FLAG_WIZ)) {	2494	if ($who->flag (FLAG_WIZ)) {
1540	$who->message ("start of reload.");
1541	perl_reload;
1542	$who->message ("end of reload.");	2495	$who->message ("reloading server.");
		2496
		2497	# doing reload synchronously and two reloads happen back-to-back,
		2498	# coro crashes during coro_state_free->destroy here.
		2499
		2500	$RELOAD_WATCHER ||= Event->timer (
		2501	reentrant => 0,
		2502	after => 0,
		2503	data => WF_AUTOCANCEL,
		2504	cb => sub {
		2505	reload;
		2506	undef $RELOAD_WATCHER;
		2507	},
		2508	);
1543	}	2509	}
1544	};	2510	};
1545		2511
1546	unshift @INC, $LIBDIR;	2512	unshift @INC, $LIBDIR;
		2513
		2514	my $bug_warning = 0;
1547		2515
1548	$TICK_WATCHER = Event->timer (	2516	$TICK_WATCHER = Event->timer (
1549	reentrant => 0,	2517	reentrant => 0,
		2518	parked => 1,
1550	prio => 0,	2519	prio => 0,
1551	at => $NEXT_TICK || $TICK,	2520	at => $NEXT_TICK || $TICK,
1552	data => WF_AUTOCANCEL,	2521	data => WF_AUTOCANCEL,
1553	cb => sub {	2522	cb => sub {
1554	unless ($FREEZE) {	2523	if ($Coro::current != $Coro::main) {
		2524	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2525	unless ++$bug_warning > 10;
		2526	return;
		2527	}
		2528
		2529	$NOW = Event::time;
		2530
1555	cf::server_tick; # one server iteration	2531	cf::server_tick; # one server iteration
1556	$RUNTIME += $TICK;	2532	$RUNTIME += $TICK;
1557	}
1558
1559	$NEXT_TICK += $TICK;	2533	$NEXT_TICK += $TICK;
		2534
		2535	$WAIT_FOR_TICK->broadcast;
		2536	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2537
		2538	Event::sweep;
		2539	Coro::cede_notself;
		2540
		2541	# my $AFTER = Event::time;
		2542	# warn $AFTER - $NOW;#d#
1560		2543
1561	# if we are delayed by four ticks or more, skip them all	2544	# if we are delayed by four ticks or more, skip them all
1562	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2545	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1563		2546
1564	$TICK_WATCHER->at ($NEXT_TICK);	2547	$TICK_WATCHER->at ($NEXT_TICK);
1565	$TICK_WATCHER->start;	2548	$TICK_WATCHER->start;
1566	},	2549	},
1567	);	2550	);
1568		2551
		2552	{
		2553	BDB::max_poll_time $TICK * 0.1;
		2554	$BDB_POLL_WATCHER = Event->io (
		2555	reentrant => 0,
		2556	fd => BDB::poll_fileno,
		2557	poll => 'r',
		2558	prio => 0,
		2559	data => WF_AUTOCANCEL,
		2560	cb => \&BDB::poll_cb,
		2561	);
		2562	BDB::min_parallel 8;
		2563
		2564	BDB::set_sync_prepare {
		2565	my $status;
		2566	my $current = $Coro::current;
		2567	(
		2568	sub {
		2569	$status = $!;
		2570	$current->ready; undef $current;
		2571	},
		2572	sub {
		2573	Coro::schedule while defined $current;
		2574	$! = $status;
		2575	},
		2576	)
		2577	};
		2578
		2579	unless ($DB_ENV) {
		2580	$DB_ENV = BDB::db_env_create;
		2581
		2582	cf::sync_job {
		2583	eval {
		2584	BDB::db_env_open
		2585	$DB_ENV,
		2586	$BDB_ENV_DIR,
		2587	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2588	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2589	0666;
		2590
		2591	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2592
		2593	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2594	$DB_ENV->set_lk_detect;
		2595	};
		2596
		2597	cf::cleanup "db_env_open(db): $@" if $@;
		2598	};
		2599	}
		2600	}
		2601
		2602	{
		2603	IO::AIO::min_parallel 8;
		2604
		2605	undef $Coro::AIO::WATCHER;
1569	IO::AIO::max_poll_time $TICK * 0.2;	2606	IO::AIO::max_poll_time $TICK * 0.1;
1570		2607	$AIO_POLL_WATCHER = Event->io (
1571	Event->io (	2608	reentrant => 0,
1572	fd => IO::AIO::poll_fileno,	2609	fd => IO::AIO::poll_fileno,
1573	poll => 'r',	2610	poll => 'r',
1574	prio => 5,	2611	prio => 6,
1575	data => WF_AUTOCANCEL,	2612	data => WF_AUTOCANCEL,
1576	cb => \&IO::AIO::poll_cb,	2613	cb => \&IO::AIO::poll_cb,
1577	);	2614	);
		2615	}
1578		2616
1579	Event->timer (	2617	$WRITE_RUNTIME_WATCHER = Event->timer (
		2618	reentrant => 0,
1580	data => WF_AUTOCANCEL,	2619	data => WF_AUTOCANCEL,
1581	after => 0,	2620	after => 1,
1582	interval => 10,	2621	interval => 10,
1583	cb => sub {	2622	prio => 6, # keep it lowest so it acts like a watchdog
1584	(Coro::unblock_sub {	2623	cb => Coro::unblock_sub {
1585	write_runtime	2624	write_runtime
1586	or warn "ERROR: unable to write runtime file: $!";	2625	or warn "ERROR: unable to write runtime file: $!";
1587	})->();
1588	},	2626	},
1589	);	2627	);
1590		2628
		2629	END { cf::emergency_save }
		2630
1591	1	2631	1
1592		2632

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