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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 1.215 by root, Thu Feb 15 03:19:02 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 $NEXT_RUNTIME_WRITE; # when should the runtime file be written
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	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
183		292
184	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
185		294
186	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	304	=cut
196		305
197	sub sync_job(&) {	306	sub sync_job(&) {
198	my ($job) = @_;	307	my ($job) = @_;
199		308
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 == $Coro::main) {	309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
		313	# TODO: use suspend/resume instead
		314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
		325
214	while ($busy) {	326	while ($busy) {
215	Coro::cede_notself;	327	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	328	}
		329
		330	wantarray ? @res : $res[0]
218	} else {	331	} else {
219	$coro->join;	332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
220	}	335	}
221
222	wantarray ? @res : $res[0]
223	}	336	}
224		337
225	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
226		339
227	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
229		342
230	=cut	343	=cut
231		344
232	sub coro(&) {	345	sub async_ext(&) {
233	my $cb = shift;	346	my $cb = shift;
234		347
235	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		349
242	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
244	});	352	});
245	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
…		…
251	my $runtime = cf::localdir . "/runtime";	359	my $runtime = cf::localdir . "/runtime";
252		360
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254	or return;	362	or return;
255		363
256	my $value = $cf::RUNTIME;	364	my $value = $cf::RUNTIME + 90 + 10;
		365	# 10 is the runtime save interval, for a monotonic clock
		366	# 60 allows for the watchdog to kill the server.
		367
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0	368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	369	and return;
259		370
		371	# always fsync - this file is important
260	aio_fsync $fh	372	aio_fsync $fh
261	and return;	373	and return;
262		374
263	close $fh	375	close $fh
264	or return;	376	or return;
…		…
270	}	382	}
271		383
272	=back	384	=back
273		385
274	=cut	386	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($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		387
379	#############################################################################	388	#############################################################################
380		389
381	=head2 ATTACHABLE OBJECTS	390	=head2 ATTACHABLE OBJECTS
382		391
…		…
508	our @CB_TYPE = (); # registry for type (cf-object class) based events	517	our @CB_TYPE = (); # registry for type (cf-object class) based events
509	our @CB_MAP = ();	518	our @CB_MAP = ();
510		519
511	my %attachment;	520	my %attachment;
512		521
		522	sub cf::attachable::thawer_merge {
		523	# simply override everything except _meta
		524	local $_[0]{_meta};
		525	%{$_[0]} = %{$_[1]};
		526	}
		527
513	sub _attach_cb($$$$) {	528	sub _attach_cb($$$$) {
514	my ($registry, $event, $prio, $cb) = @_;	529	my ($registry, $event, $prio, $cb) = @_;
515		530
516	use sort 'stable';	531	use sort 'stable';
517		532
…		…
688	# object support	703	# object support
689		704
690	sub reattach {	705	sub reattach {
691	# basically do the same as instantiate, without calling instantiate	706	# basically do the same as instantiate, without calling instantiate
692	my ($obj) = @_;	707	my ($obj) = @_;
		708
		709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
693		710
694	my $registry = $obj->registry;	711	my $registry = $obj->registry;
695		712
696	@$registry = ();	713	@$registry = ();
697		714
…		…
744	$filename, length $$rdata, scalar @$objs;	761	$filename, length $$rdata, scalar @$objs;
745		762
746	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
747	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
748	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
749	aio_fsync $fh;	766	aio_fsync $fh if $cf::USE_FSYNC;
750	close $fh;	767	close $fh;
751		768
752	if (@$objs) {	769	if (@$objs) {
753	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
754	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
755	my $data = Storable::nfreeze { version => 1, objs => $objs };	772	my $data = Storable::nfreeze { version => 1, objs => $objs };
756	aio_write $fh, 0, (length $data), $data, 0;	773	aio_write $fh, 0, (length $data), $data, 0;
757	aio_fsync $fh;	774	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	775	close $fh;
759	aio_rename "$filename.pst~", "$filename.pst";	776	aio_rename "$filename.pst~", "$filename.pst";
760	}	777	}
761	} else {	778	} else {
762	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
…		…
768	}	785	}
769	} else {	786	} else {
770	aio_unlink $filename;	787	aio_unlink $filename;
771	aio_unlink "$filename.pst";	788	aio_unlink "$filename.pst";
772	}	789	}
		790
		791	#d##TODO# nuke non .map-files if exist
		792	if ($filename =~ s/\.map$//) {
		793	aio_unlink $filename;
		794	aio_unlink "$filename.pst";
		795	}
773	}	796	}
774	}	797	}
775		798
776	sub object_freezer_as_string {	799	sub object_freezer_as_string {
777	my ($rdata, $objs) = @_;	800	my ($rdata, $objs) = @_;
…		…
783		806
784	sub object_thawer_load {	807	sub object_thawer_load {
785	my ($filename) = @_;	808	my ($filename) = @_;
786		809
787	my ($data, $av);	810	my ($data, $av);
		811
		812	#d#TODO remove .map if file does not exist
		813	aio_stat $filename and $filename =~ s/\.map$//;
788		814
789	(aio_load $filename, $data) >= 0	815	(aio_load $filename, $data) >= 0
790	or return;	816	or return;
791		817
792	unless (aio_stat "$filename.pst") {	818	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	819	(aio_load "$filename.pst", $av) >= 0
794	or return;	820	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	821	$av = eval { (Storable::thaw $av)->{objs} };
796	}	822	}
797		823
		824	warn sprintf "loading %s (%d)\n",
		825	$filename, length $data, scalar @{$av || []};#d#
798	return ($data, $av);	826	return ($data, $av);
799	}	827	}
800		828
801	#############################################################################	829	#############################################################################
802	# command handling &c	830	# command handling &c
…		…
827	=cut	855	=cut
828		856
829	sub register_extcmd {	857	sub register_extcmd {
830	my ($name, $cb) = @_;	858	my ($name, $cb) = @_;
831		859
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	860	$EXTCMD{$name} = $cb;
836	}	861	}
837		862
838	cf::player->attach (	863	cf::player->attach (
839	on_command => sub {	864	on_command => sub {
840	my ($pl, $name, $params) = @_;	865	my ($pl, $name, $params) = @_;
…		…
853		878
854	my $msg = eval { from_json $buf };	879	my $msg = eval { from_json $buf };
855		880
856	if (ref $msg) {	881	if (ref $msg) {
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	882	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	883	if (my %reply = $cb->($pl, $msg)) {
859	$pl->ext_reply ($msg->{msgid}, %reply);	884	$pl->ext_reply ($msg->{msgid}, %reply);
860	}	885	}
861	}	886	}
862	} else {	887	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	888	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
865		890
866	cf::override;	891	cf::override;
867	},	892	},
868	);	893	);
869		894
870	sub register {
871	my ($base, $pkg) = @_;
872
873	#TODO
874	}
875
876	sub load_extension {	895	sub load_extension {
877	my ($path) = @_;	896	my ($path) = @_;
878		897
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	898	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
880	my $base = $1;	899	my $base = $1;
881	my $pkg = $1;	900	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;	901	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";	902	$pkg = "ext::$pkg";
884		903
885	warn "loading '$path' into '$pkg'\n";	904	warn "... loading '$path' into '$pkg'\n";
886		905
887	open my $fh, "<:utf8", $path	906	open my $fh, "<:utf8", $path
888	or die "$path: $!";	907	or die "$path: $!";
889		908
890	my $source =	909	my $source =
891	"package $pkg; use strict; use utf8;\n"	910	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"	911	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })	912	. (do { local $/; <$fh> })
894	. "\n};\n1";	913	. "\n};\n1";
895		914
896	eval $source	915	unless (eval $source) {
897	or die $@ ? "$path: $@\n"	916	my $msg = $@ ? "$path: $@\n"
898	: "extension disabled.\n";	917	: "extension disabled.\n";
899		918	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
900	push @exts, $pkg;	919	warn $@;
901	$ext_pkg{$base} = $pkg;	920	warn "mandatory extension failed to load, exiting.\n";
902		921	exit 1;
903	# no strict 'refs';	922	}
904	# @{"$pkg\::ISA"} = ext::;	923	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	# }	924	}
919		925
920	# remove commands	926	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	}	927	}
945		928
946	sub load_extensions {	929	sub load_extensions {
947	for my $ext (<$LIBDIR/*.ext>) {	930	for my $ext (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	931	next unless -r $ext;
…		…
952	} or warn "$ext not loaded: $@";	935	} or warn "$ext not loaded: $@";
953	}	936	}
954	}	937	}
955		938
956	#############################################################################	939	#############################################################################
957	# load/save/clean perl data associated with a map
958		940
959	*cf::mapsupport::on_clean = sub {	941	=head2 CORE EXTENSIONS
		942
		943	Functions and methods that extend core crossfire objects.
		944
		945	=cut
		946
		947	package cf::player;
		948
		949	use Coro::AIO;
		950
		951	=head3 cf::player
		952
		953	=over 4
		954
		955	=item cf::player::find $login
		956
		957	Returns the given player object, loading it if necessary (might block).
		958
		959	=cut
		960
		961	sub playerdir($) {
		962	cf::localdir
		963	. "/"
		964	. cf::playerdir
		965	. "/"
		966	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		967	}
		968
		969	sub path($) {
		970	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		971
		972	(playerdir $login) . "/$login.pl"
		973	}
		974
		975	sub find_active($) {
		976	$cf::PLAYER{$_[0]}
		977	and $cf::PLAYER{$_[0]}->active
		978	and $cf::PLAYER{$_[0]}
		979	}
		980
		981	sub exists($) {
		982	my ($login) = @_;
		983
		984	$cf::PLAYER{$login}
		985	or cf::sync_job { !aio_stat path $login }
		986	}
		987
		988	sub find($) {
		989	return $cf::PLAYER{$_[0]} || do {
		990	my $login = $_[0];
		991
		992	my $guard = cf::lock_acquire "user_find:$login";
		993
		994	$cf::PLAYER{$_[0]} || do {
		995	my $pl = load_pl path $login
		996	or return;
		997	$cf::PLAYER{$login} = $pl
		998	}
		999	}
		1000	}
		1001
		1002	sub save($) {
		1003	my ($pl) = @_;
		1004
		1005	return if $pl->{deny_save};
		1006
		1007	my $path = path $pl;
		1008	my $guard = cf::lock_acquire "user_save:$path";
		1009
		1010	return if $pl->{deny_save};
		1011
		1012	aio_mkdir playerdir $pl, 0770;
		1013	$pl->{last_save} = $cf::RUNTIME;
		1014
		1015	$pl->save_pl ($path);
		1016	Coro::cede;
		1017	}
		1018
		1019	sub new($) {
		1020	my ($login) = @_;
		1021
		1022	my $self = create;
		1023
		1024	$self->ob->name ($login);
		1025	$self->{deny_save} = 1;
		1026
		1027	$cf::PLAYER{$login} = $self;
		1028
		1029	$self
		1030	}
		1031
		1032	=item $pl->quit_character
		1033
		1034	Nukes the player without looking back. If logged in, the connection will
		1035	be destroyed. May block for a long time.
		1036
		1037	=cut
		1038
		1039	sub quit_character {
		1040	my ($pl) = @_;
		1041
		1042	$pl->{deny_save} = 1;
		1043	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1044
		1045	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1046	$pl->deactivate;
		1047	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1048	$pl->ns->destroy if $pl->ns;
		1049
		1050	my $path = playerdir $pl;
		1051	my $temp = "$path~$cf::RUNTIME~deleting~";
		1052	aio_rename $path, $temp;
		1053	delete $cf::PLAYER{$pl->ob->name};
		1054	$pl->destroy;
		1055	IO::AIO::aio_rmtree $temp;
		1056	}
		1057
		1058	=item cf::player::list_logins
		1059
		1060	Returns am arrayref of all valid playernames in the system, can take a
		1061	while and may block, so not sync_job-capable, ever.
		1062
		1063	=cut
		1064
		1065	sub list_logins {
		1066	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1067	or return [];
		1068
		1069	my @logins;
		1070
		1071	for my $login (@$dirs) {
		1072	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1073	aio_read $fh, 0, 512, my $buf, 0 or next;
		1074	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1075
		1076	utf8::decode $login;
		1077	push @logins, $login;
		1078	}
		1079
		1080	\@logins
		1081	}
		1082
		1083	=item $player->maps
		1084
		1085	Returns an arrayref of map paths that are private for this
		1086	player. May block.
		1087
		1088	=cut
		1089
		1090	sub maps($) {
		1091	my ($pl) = @_;
		1092
		1093	$pl = ref $pl ? $pl->ob->name : $pl;
		1094
		1095	my $files = aio_readdir playerdir $pl
		1096	or return;
		1097
		1098	my @paths;
		1099
		1100	for (@$files) {
		1101	utf8::decode $_;
		1102	next if /\.(?:pl|pst)$/;
		1103	next unless /^$PATH_SEP/o;
		1104
		1105	push @paths, cf::map::normalise "~$pl/$_";
		1106	}
		1107
		1108	\@paths
		1109	}
		1110
		1111	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1112
		1113	Sends an ext reply to the player.
		1114
		1115	=cut
		1116
		1117	sub ext_reply($$$%) {
		1118	my ($self, $id, %msg) = @_;
		1119
		1120	$msg{msgid} = $id;
		1121
		1122	$self->send ("ext " . cf::to_json \%msg);
		1123	}
		1124
		1125	package cf;
		1126
		1127	=back
		1128
		1129
		1130	=head3 cf::map
		1131
		1132	=over 4
		1133
		1134	=cut
		1135
		1136	package cf::map;
		1137
		1138	use Fcntl;
		1139	use Coro::AIO;
		1140
		1141	use overload
		1142	'""' => \&as_string,
		1143	fallback => 1;
		1144
		1145	our $MAX_RESET = 3600;
		1146	our $DEFAULT_RESET = 3000;
		1147
		1148	sub generate_random_map {
		1149	my ($self, $rmp) = @_;
		1150	# mit "rum" bekleckern, nicht
		1151	$self->_create_random_map (
		1152	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1153	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1154	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1155	$rmp->{exit_on_final_map},
		1156	$rmp->{xsize}, $rmp->{ysize},
		1157	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1158	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1159	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1160	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1161	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1162	(cf::region::find $rmp->{region}), $rmp->{custom}
		1163	)
		1164	}
		1165
		1166	=item cf::map->register ($regex, $prio)
		1167
		1168	Register a handler for the map path matching the given regex at the
		1169	givne priority (higher is better, built-in handlers have priority 0, the
		1170	default).
		1171
		1172	=cut
		1173
		1174	sub register {
		1175	my (undef, $regex, $prio) = @_;
		1176	my $pkg = caller;
		1177
		1178	no strict;
		1179	push @{"$pkg\::ISA"}, __PACKAGE__;
		1180
		1181	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1182	}
		1183
		1184	# also paths starting with '/'
		1185	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1186
		1187	sub thawer_merge {
		1188	my ($self, $merge) = @_;
		1189
		1190	# we have to keep some variables in memory intact
		1191	local $self->{path};
		1192	local $self->{load_path};
		1193	local $self->{deny_save};
		1194	local $self->{deny_reset};
		1195
		1196	$self->SUPER::thawer_merge ($merge);
		1197	}
		1198
		1199	sub normalise {
		1200	my ($path, $base) = @_;
		1201
		1202	$path = "$path"; # make sure its a string
		1203
		1204	$path =~ s/\.map$//;
		1205
		1206	# map plan:
		1207	#
		1208	# /! non-realised random map exit (special hack!)
		1209	# {... are special paths that are not being touched
		1210	# ?xxx/... are special absolute paths
		1211	# ?random/... random maps
		1212	# /... normal maps
		1213	# ~user/... per-player map of a specific user
		1214
		1215	$path =~ s/$PATH_SEP/\//go;
		1216
		1217	# treat it as relative path if it starts with
		1218	# something that looks reasonable
		1219	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1220	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1221
		1222	$base =~ s{[^/]+/?$}{};
		1223	$path = "$base/$path";
		1224	}
		1225
		1226	for ($path) {
		1227	redo if s{//}{/};
		1228	redo if s{/\.?/}{/};
		1229	redo if s{/[^/]+/\.\./}{/};
		1230	}
		1231
		1232	$path
		1233	}
		1234
		1235	sub new_from_path {
		1236	my (undef, $path, $base) = @_;
		1237
		1238	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1239
		1240	$path = normalise $path, $base;
		1241
		1242	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1243	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1244	my $self = bless cf::map::new, $pkg;
		1245	$self->{path} = $path; $self->path ($path);
		1246	$self->init; # pass $1 etc.
		1247	return $self;
		1248	}
		1249	}
		1250
		1251	Carp::carp "unable to resolve path '$path' (base '$base').";
		1252	()
		1253	}
		1254
		1255	sub init {
		1256	my ($self) = @_;
		1257
		1258	$self
		1259	}
		1260
		1261	sub as_string {
		1262	my ($self) = @_;
		1263
		1264	"$self->{path}"
		1265	}
		1266
		1267	# the displayed name, this is a one way mapping
		1268	sub visible_name {
		1269	&as_string
		1270	}
		1271
		1272	# the original (read-only) location
		1273	sub load_path {
		1274	my ($self) = @_;
		1275
		1276	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1277	}
		1278
		1279	# the temporary/swap location
		1280	sub save_path {
		1281	my ($self) = @_;
		1282
		1283	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1284	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1285	}
		1286
		1287	# the unique path, undef == no special unique path
		1288	sub uniq_path {
		1289	my ($self) = @_;
		1290
		1291	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1292	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1293	}
		1294
		1295	# and all this just because we cannot iterate over
		1296	# all maps in C++...
		1297	sub change_all_map_light {
		1298	my ($change) = @_;
		1299
		1300	$_->change_map_light ($change)
		1301	for grep $_->outdoor, values %cf::MAP;
		1302	}
		1303
		1304	sub unlink_save {
		1305	my ($self) = @_;
		1306
		1307	utf8::encode (my $save = $self->save_path);
		1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1310
		1311	#d#TODO remove .map and also nuke
		1312	$save =~ s/\.map// or return;#d#
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1314	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1315	}
		1316
		1317	sub load_header_from($) {
		1318	my ($self, $path) = @_;
		1319
		1320	utf8::encode $path;
		1321	#aio_open $path, O_RDONLY, 0
		1322	# or return;
		1323
		1324	$self->_load_header ($path)
		1325	or return;
		1326
		1327	$self->{load_path} = $path;
		1328
		1329	1
		1330	}
		1331
		1332	sub load_header_orig {
		1333	my ($self) = @_;
		1334
		1335	$self->load_header_from ($self->load_path)
		1336	}
		1337
		1338	sub load_header_temp {
		1339	my ($self) = @_;
		1340
		1341	$self->load_header_from ($self->save_path)
		1342	}
		1343
		1344	sub prepare_temp {
		1345	my ($self) = @_;
		1346
		1347	$self->last_access ((delete $self->{last_access})
		1348	|| $cf::RUNTIME); #d#
		1349	# safety
		1350	$self->{instantiate_time} = $cf::RUNTIME
		1351	if $self->{instantiate_time} > $cf::RUNTIME;
		1352	}
		1353
		1354	sub prepare_orig {
		1355	my ($self) = @_;
		1356
		1357	$self->{load_original} = 1;
		1358	$self->{instantiate_time} = $cf::RUNTIME;
		1359	$self->last_access ($cf::RUNTIME);
		1360	$self->instantiate;
		1361	}
		1362
		1363	sub load_header {
		1364	my ($self) = @_;
		1365
		1366	if ($self->load_header_temp) {
		1367	$self->prepare_temp;
		1368	} else {
		1369	$self->load_header_orig
		1370	or return;
		1371	$self->prepare_orig;
		1372	}
		1373
		1374	1
		1375	}
		1376
		1377	sub find;
		1378	sub find {
		1379	my ($path, $origin) = @_;
		1380
		1381	$path = normalise $path, $origin && $origin->path;
		1382
		1383	cf::lock_wait "map_find:$path";
		1384
		1385	$cf::MAP{$path} || do {
		1386	my $guard = cf::lock_acquire "map_find:$path";
		1387	my $map = new_from_path cf::map $path
		1388	or return;
		1389
		1390	$map->{last_save} = $cf::RUNTIME;
		1391
		1392	$map->load_header
		1393	or return;
		1394
		1395	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1396	# doing this can freeze the server in a sync job, obviously
		1397	#$cf::WAIT_FOR_TICK->wait;
		1398	$map->reset;
		1399	undef $guard;
		1400	return find $path;
		1401	}
		1402
		1403	$cf::MAP{$path} = $map
		1404	}
		1405	}
		1406
		1407	sub pre_load { }
		1408	sub post_load { }
		1409
		1410	sub load {
		1411	my ($self) = @_;
		1412
		1413	local $self->{deny_reset} = 1; # loading can take a long time
		1414
		1415	my $path = $self->{path};
		1416	my $guard = cf::lock_acquire "map_load:$path";
		1417
		1418	return if $self->in_memory != cf::MAP_SWAPPED;
		1419
		1420	$self->in_memory (cf::MAP_LOADING);
		1421
		1422	$self->alloc;
		1423
		1424	$self->pre_load;
		1425
		1426	$self->_load_objects ($self->{load_path}, 1)
		1427	or return;
		1428
		1429	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1430	if delete $self->{load_original};
		1431
		1432	if (my $uniq = $self->uniq_path) {
		1433	utf8::encode $uniq;
		1434	if (aio_open $uniq, O_RDONLY, 0) {
		1435	$self->clear_unique_items;
		1436	$self->_load_objects ($uniq, 0);
		1437	}
		1438	}
		1439
		1440	Coro::cede;
		1441
		1442	# now do the right thing for maps
		1443	$self->link_multipart_objects;
		1444
		1445	unless ($self->{deny_activate}) {
		1446	$self->decay_objects;
		1447	$self->fix_auto_apply;
		1448	$self->update_buttons;
		1449	Coro::cede;
		1450	$self->set_darkness_map;
		1451	$self->difficulty ($self->estimate_difficulty)
		1452	unless $self->difficulty;
		1453	Coro::cede;
		1454	$self->activate;
		1455	}
		1456
		1457	$self->post_load;
		1458
		1459	$self->in_memory (cf::MAP_IN_MEMORY);
		1460	}
		1461
		1462	sub customise_for {
		1463	my ($self, $ob) = @_;
		1464
		1465	return find "~" . $ob->name . "/" . $self->{path}
		1466	if $self->per_player;
		1467
		1468	$self
		1469	}
		1470
		1471	# find and load all maps in the 3x3 area around a map
		1472	sub load_diag {
960	my ($map) = @_;	1473	my ($map) = @_;
961		1474
962	my $path = $map->tmpname;	1475	my @diag; # diagonal neighbours
963	defined $path or return;
964		1476
965	unlink "$path.pst";	1477	for (0 .. 3) {
966	};	1478	my $neigh = $map->tile_path ($_)
		1479	or next;
		1480	$neigh = find $neigh, $map
		1481	or next;
		1482	$neigh->load;
967		1483
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1484	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1485	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1486	}
969		1487
970	#############################################################################	1488	for (@diag) {
971	# load/save perl data associated with player->ob objects	1489	my $neigh = find @$_
972		1490	or next;
973	sub all_objects(@) {	1491	$neigh->load;
974	@_, map all_objects ($_->inv), @_	1492	}
975	}	1493	}
976		1494
977	# TODO: compatibility cruft, remove when no longer needed	1495	sub find_sync {
978	cf::player->attach (	1496	my ($path, $origin) = @_;
979	on_load => sub {
980	my ($pl, $path) = @_;
981		1497
982	for my $o (all_objects $pl->ob) {	1498	cf::sync_job { find $path, $origin }
983	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1499	}
984	$o->set_ob_key_value ("_perl_data");
985		1500
986	%$o = %{ Storable::thaw pack "H*", $value };	1501	sub do_load_sync {
		1502	my ($map) = @_;
		1503
		1504	cf::sync_job { $map->load };
		1505	}
		1506
		1507	our %MAP_PREFETCH;
		1508	our $MAP_PREFETCHER = undef;
		1509
		1510	sub find_async {
		1511	my ($path, $origin) = @_;
		1512
		1513	$path = normalise $path, $origin && $origin->{path};
		1514
		1515	if (my $map = $cf::MAP{$path}) {
		1516	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1517	}
		1518
		1519	undef $MAP_PREFETCH{$path};
		1520	$MAP_PREFETCHER ||= cf::async {
		1521	while (%MAP_PREFETCH) {
		1522	for my $path (keys %MAP_PREFETCH) {
		1523	my $map = find $path
		1524	or next;
		1525	$map->load;
		1526
		1527	delete $MAP_PREFETCH{$path};
987	}	1528	}
988	}	1529	}
		1530	undef $MAP_PREFETCHER;
		1531	};
		1532	$MAP_PREFETCHER->prio (6);
		1533
		1534	()
		1535	}
		1536
		1537	sub save {
		1538	my ($self) = @_;
		1539
		1540	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1541
		1542	$self->{last_save} = $cf::RUNTIME;
		1543
		1544	return unless $self->dirty;
		1545
		1546	my $save = $self->save_path; utf8::encode $save;
		1547	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1548
		1549	$self->{load_path} = $save;
		1550
		1551	return if $self->{deny_save};
		1552
		1553	local $self->{last_access} = $self->last_access;#d#
		1554
		1555	cf::async {
		1556	$_->contr->save for $self->players;
		1557	};
		1558
		1559	if ($uniq) {
		1560	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1561	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1562	} else {
		1563	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
989	},	1564	}
990	);	1565	}
991		1566
992	#############################################################################	1567	sub swap_out {
		1568	my ($self) = @_;
993		1569
994	=head2 CORE EXTENSIONS	1570	# save first because save cedes
		1571	$self->save;
995		1572
996	Functions and methods that extend core crossfire objects.	1573	my $lock = cf::lock_acquire "map_data:" . $self->path;
997		1574
998	=head3 cf::player	1575	return if $self->players;
		1576	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1577	return if $self->{deny_save};
		1578
		1579	$self->clear;
		1580	$self->in_memory (cf::MAP_SWAPPED);
		1581	}
		1582
		1583	sub reset_at {
		1584	my ($self) = @_;
		1585
		1586	# TODO: safety, remove and allow resettable per-player maps
		1587	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1588	return 1e99 if $self->{deny_reset};
		1589
		1590	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1591	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1592
		1593	$time + $to
		1594	}
		1595
		1596	sub should_reset {
		1597	my ($self) = @_;
		1598
		1599	$self->reset_at <= $cf::RUNTIME
		1600	}
		1601
		1602	sub reset {
		1603	my ($self) = @_;
		1604
		1605	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1606
		1607	return if $self->players;
		1608	return if $self->isa ("ext::map_per_player");#d#
		1609
		1610	warn "resetting map ", $self->path;#d#
		1611
		1612	$self->in_memory (cf::MAP_SWAPPED);
		1613
		1614	# need to save uniques path
		1615	unless ($self->{deny_save}) {
		1616	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1617
		1618	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1619	if $uniq;
		1620	}
		1621
		1622	delete $cf::MAP{$self->path};
		1623
		1624	$self->clear;
		1625
		1626	$_->clear_links_to ($self) for values %cf::MAP;
		1627
		1628	$self->unlink_save;
		1629	$self->destroy;
		1630	}
		1631
		1632	my $nuke_counter = "aaaa";
		1633
		1634	sub nuke {
		1635	my ($self) = @_;
		1636
		1637	delete $cf::MAP{$self->path};
		1638
		1639	$self->unlink_save;
		1640
		1641	bless $self, "cf::map";
		1642	delete $self->{deny_reset};
		1643	$self->{deny_save} = 1;
		1644	$self->reset_timeout (1);
		1645	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1646
		1647	$cf::MAP{$self->path} = $self;
		1648
		1649	$self->reset; # polite request, might not happen
		1650	}
		1651
		1652	=item cf::map::unique_maps
		1653
		1654	Returns an arrayref of paths of all shared maps that have
		1655	instantiated unique items. May block.
		1656
		1657	=cut
		1658
		1659	sub unique_maps() {
		1660	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1661	or return;
		1662
		1663	my @paths;
		1664
		1665	for (@$files) {
		1666	utf8::decode $_;
		1667	next if /\.pst$/;
		1668	next unless /^$PATH_SEP/o;
		1669
		1670	push @paths, cf::map::normalise $_;
		1671	}
		1672
		1673	\@paths
		1674	}
		1675
		1676	package cf;
		1677
		1678	=back
		1679
		1680	=head3 cf::object
		1681
		1682	=cut
		1683
		1684	package cf::object;
999		1685
1000	=over 4	1686	=over 4
1001		1687
1002	=item cf::player::exists $login	1688	=item $ob->inv_recursive
1003		1689
1004	Returns true when the given account exists.	1690	Returns the inventory of the object _and_ their inventories, recursively.
1005		1691
1006	=cut	1692	=cut
1007		1693
1008	sub cf::player::exists($) {	1694	sub inv_recursive_;
1009	cf::player::find $_[0]	1695	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1696	map { $_, inv_recursive_ $_->inv } @_
1011	}	1697	}
1012		1698
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	1699	sub inv_recursive {
1014		1700	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	}	1701	}
		1702
		1703	package cf;
1026		1704
1027	=back	1705	=back
1028		1706
1029	=head3 cf::object::player	1707	=head3 cf::object::player
1030		1708
…		…
1068	(ref $cf::CFG{"may_$access"}	1746	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1747	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1748	: $cf::CFG{"may_$access"})
1071	}	1749	}
1072		1750
		1751	=item $player_object->enter_link
		1752
		1753	Freezes the player and moves him/her to a special map (C<{link}>).
		1754
		1755	The player should be reasonably safe there for short amounts of time. You
		1756	I<MUST> call C<leave_link> as soon as possible, though.
		1757
		1758	Will never block.
		1759
		1760	=item $player_object->leave_link ($map, $x, $y)
		1761
		1762	Moves the player out of the special C<{link}> map onto the specified
		1763	map. If the map is not valid (or omitted), the player will be moved back
		1764	to the location he/she was before the call to C<enter_link>, or, if that
		1765	fails, to the emergency map position.
		1766
		1767	Might block.
		1768
		1769	=cut
		1770
		1771	sub link_map {
		1772	unless ($LINK_MAP) {
		1773	$LINK_MAP = cf::map::find "{link}"
		1774	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1775	$LINK_MAP->load;
		1776	}
		1777
		1778	$LINK_MAP
		1779	}
		1780
		1781	sub cf::object::player::enter_link {
		1782	my ($self) = @_;
		1783
		1784	$self->deactivate_recursive;
		1785
		1786	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1787
		1788	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1789	if $self->map;
		1790
		1791	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1792	}
		1793
		1794	sub cf::object::player::leave_link {
		1795	my ($self, $map, $x, $y) = @_;
		1796
		1797	my $link_pos = delete $self->{_link_pos};
		1798
		1799	unless ($map) {
		1800	# restore original map position
		1801	($map, $x, $y) = @{ $link_pos || [] };
		1802	$map = cf::map::find $map;
		1803
		1804	unless ($map) {
		1805	($map, $x, $y) = @$EMERGENCY_POSITION;
		1806	$map = cf::map::find $map
		1807	or die "FATAL: cannot load emergency map\n";
		1808	}
		1809	}
		1810
		1811	($x, $y) = (-1, -1)
		1812	unless (defined $x) && (defined $y);
		1813
		1814	# use -1 or undef as default coordinates, not 0, 0
		1815	($x, $y) = ($map->enter_x, $map->enter_y)
		1816	if $x <=0 && $y <= 0;
		1817
		1818	$map->load;
		1819	$map->load_diag;
		1820
		1821	return unless $self->contr->active;
		1822	$self->activate_recursive;
		1823
		1824	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1825	$self->enter_map ($map, $x, $y);
		1826	}
		1827
		1828	cf::player->attach (
		1829	on_logout => sub {
		1830	my ($pl) = @_;
		1831
		1832	# abort map switching before logout
		1833	if ($pl->ob->{_link_pos}) {
		1834	cf::sync_job {
		1835	$pl->ob->leave_link
		1836	};
		1837	}
		1838	},
		1839	on_login => sub {
		1840	my ($pl) = @_;
		1841
		1842	# try to abort aborted map switching on player login :)
		1843	# should happen only on crashes
		1844	if ($pl->ob->{_link_pos}) {
		1845	$pl->ob->enter_link;
		1846	(async {
		1847	$pl->ob->reply (undef,
		1848	"There was an internal problem at your last logout, "
		1849	. "the server will try to bring you to your intended destination in a second.",
		1850	cf::NDI_RED);
		1851	# we need this sleep as the login has a concurrent enter_exit running
		1852	# and this sleep increases chances of the player not ending up in scorn
		1853	Coro::Timer::sleep 1;
		1854	$pl->ob->leave_link;
		1855	})->prio (2);
		1856	}
		1857	},
		1858	);
		1859
		1860	=item $player_object->goto ($path, $x, $y)
		1861
		1862	=cut
		1863
		1864	sub cf::object::player::goto {
		1865	my ($self, $path, $x, $y) = @_;
		1866
		1867	$self->enter_link;
		1868
		1869	(async {
		1870	my $map = eval {
		1871	my $map = cf::map::find $path;
		1872	$map = $map->customise_for ($self) if $map;
		1873	$map
		1874	} or
		1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1876
		1877	$self->leave_link ($map, $x, $y);
		1878	})->prio (1);
		1879	}
		1880
		1881	=item $player_object->enter_exit ($exit_object)
		1882
		1883	=cut
		1884
		1885	sub parse_random_map_params {
		1886	my ($spec) = @_;
		1887
		1888	my $rmp = { # defaults
		1889	xsize => (cf::rndm 15, 40),
		1890	ysize => (cf::rndm 15, 40),
		1891	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1892	#layout => string,
		1893	};
		1894
		1895	for (split /\n/, $spec) {
		1896	my ($k, $v) = split /\s+/, $_, 2;
		1897
		1898	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1899	}
		1900
		1901	$rmp
		1902	}
		1903
		1904	sub prepare_random_map {
		1905	my ($exit) = @_;
		1906
		1907	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1908
		1909	# all this does is basically replace the /! path by
		1910	# a new random map path (?random/...) with a seed
		1911	# that depends on the exit object
		1912
		1913	my $rmp = parse_random_map_params $exit->msg;
		1914
		1915	if ($exit->map) {
		1916	$rmp->{region} = $exit->region->name;
		1917	$rmp->{origin_map} = $exit->map->path;
		1918	$rmp->{origin_x} = $exit->x;
		1919	$rmp->{origin_y} = $exit->y;
		1920	}
		1921
		1922	$rmp->{random_seed} ||= $exit->random_seed;
		1923
		1924	my $data = cf::to_json $rmp;
		1925	my $md5 = Digest::MD5::md5_hex $data;
		1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1927
		1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1929	aio_write $fh, 0, (length $data), $data, 0;
		1930	undef $fh;
		1931	aio_rename "$meta~", $meta;
		1932
		1933	$exit->slaying ("?random/$md5");
		1934	$exit->msg (undef);
		1935	}
		1936	}
		1937
		1938	sub cf::object::player::enter_exit {
		1939	my ($self, $exit) = @_;
		1940
		1941	return unless $self->type == cf::PLAYER;
		1942
		1943	if ($exit->slaying eq "/!") {
		1944	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1945	cf::sync_job { prepare_random_map $exit };
		1946	}
		1947
		1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1949	my $hp = $exit->stats->hp;
		1950	my $sp = $exit->stats->sp;
		1951
		1952	$self->enter_link;
		1953
		1954	(async {
		1955	$self->deactivate_recursive; # just to be sure
		1956	unless (eval {
		1957	$self->goto ($slaying, $hp, $sp);
		1958
		1959	1;
		1960	}) {
		1961	$self->message ("Something went wrong deep within the crossfire server. "
		1962	. "I'll try to bring you back to the map you were before. "
		1963	. "Please report this to the dungeon master!",
		1964	cf::NDI_UNIQUE | cf::NDI_RED);
		1965
		1966	warn "ERROR in enter_exit: $@";
		1967	$self->leave_link;
		1968	}
		1969	})->prio (1);
		1970	}
		1971
1073	=head3 cf::client	1972	=head3 cf::client
1074		1973
1075	=over 4	1974	=over 4
1076		1975
1077	=item $client->send_drawinfo ($text, $flags)	1976	=item $client->send_drawinfo ($text, $flags)
…		…
1120	on_reply => sub {	2019	on_reply => sub {
1121	my ($ns, $msg) = @_;	2020	my ($ns, $msg) = @_;
1122		2021
1123	# this weird shuffling is so that direct followup queries	2022	# this weird shuffling is so that direct followup queries
1124	# get handled first	2023	# get handled first
1125	my $queue = delete $ns->{query_queue};	2024	my $queue = delete $ns->{query_queue}
		2025	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		2026
1127	(shift @$queue)->[1]->($msg);	2027	(shift @$queue)->[1]->($msg);
		2028	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1128		2029
1129	push @{ $ns->{query_queue} }, @$queue;	2030	push @{ $ns->{query_queue} }, @$queue;
1130		2031
1131	if (@{ $ns->{query_queue} } == @$queue) {	2032	if (@{ $ns->{query_queue} } == @$queue) {
1132	if (@$queue) {	2033	if (@$queue) {
…		…
1136	}	2037	}
1137	}	2038	}
1138	},	2039	},
1139	);	2040	);
1140		2041
1141	=item $client->coro (\&cb)	2042	=item $client->async (\&cb)
1142		2043
1143	Create a new coroutine, running the specified callback. The coroutine will	2044	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	2045	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	2046	or loss of connection).
1146		2047
1147	=cut	2048	=cut
1148		2049
1149	sub cf::client::coro {	2050	sub cf::client::async {
1150	my ($self, $cb) = @_;	2051	my ($self, $cb) = @_;
1151		2052
1152	my $coro; $coro = async {	2053	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		2054
1159	$coro->on_destroy (sub {	2055	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	2056	delete $self->{_coro}{$coro+0};
1161	});	2057	});
1162		2058
…		…
1298	The parameter C<$family> should best start with the name of the extension	2194	The parameter C<$family> should best start with the name of the extension
1299	using it, it should be unique.	2195	using it, it should be unique.
1300		2196
1301	=over 4	2197	=over 4
1302		2198
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	2199	=item $value = cf::db_get $family => $key
1310		2200
1311	Returns a single value from the database	2201	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		2202
1318	=item cf::db_put $family => $key => $value	2203	=item cf::db_put $family => $key => $value
1319		2204
1320	Stores the given C<$value> in the family hash. Updates are delayed, if you	2205	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		2206
1331	=cut	2207	=cut
1332		2208
1333	our $DB;	2209	our $DB;
1334		2210
1335	{	2211	sub db_init {
		2212	unless ($DB) {
		2213	$DB = BDB::db_create $DB_ENV;
		2214
		2215	cf::sync_job {
		2216	eval {
		2217	$DB->set_flags (BDB::CHKSUM);
		2218
		2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2221	cf::cleanup "db_open(db): $!" if $!;
		2222	};
		2223	cf::cleanup "db_open(db): $@" if $@;
		2224	};
		2225
1336	my $path = cf::localdir . "/database.pst";	2226	my $path = cf::localdir . "/database.pst";
		2227	if (stat $path) {
		2228	cf::sync_job {
		2229	my $pst = Storable::retrieve $path;
1337		2230
1338	sub db_load() {	2231	cf::db_put (board => data => $pst->{board});
1339	warn "loading database $path\n";#d# remove later	2232	cf::db_put (guildrules => data => $pst->{guildrules});
1340	$DB = stat $path ? Storable::retrieve $path : { };	2233	cf::db_put (rent => balance => $pst->{rent}{balance});
1341	}	2234	BDB::db_env_txn_checkpoint $DB_ENV;
1342		2235
1343	my $pid;	2236	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	}	2237	};
1354	}
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	});
1366
1367	sub db_dirty() {
1368	$dirty = 1;
1369	$idle->start;
1370	}
1371
1372	sub db_get($;$) {
1373	@_ >= 2
1374	? $DB->{$_[0]}{$_[1]}
1375	: ($DB->{$_[0]} ||= { })
1376	}
1377
1378	sub db_put($$;$) {
1379	if (@_ >= 3) {
1380	$DB->{$_[0]}{$_[1]} = $_[2];
1381	} else {
1382	$DB->{$_[0]} = $_[1];
1383	}
1384	db_dirty;
1385	}
1386
1387	cf::global->attach (
1388	prio => 10000,
1389	on_cleanup => sub {
1390	db_sync;
1391	},	2238	}
1392	);	2239	}
		2240	}
		2241
		2242	sub db_get($$) {
		2243	my $key = "$_[0]/$_[1]";
		2244
		2245	cf::sync_job {
		2246	BDB::db_get $DB, undef, $key, my $data;
		2247
		2248	$! ? ()
		2249	: Compress::LZF::sthaw $data
		2250	}
		2251	}
		2252
		2253	sub db_put($$$) {
		2254	BDB::dbreq_pri 4;
		2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1393	}	2256	}
1394		2257
1395	#############################################################################	2258	#############################################################################
1396	# the server's main()	2259	# the server's init and main functions
		2260
		2261	sub load_resources {
		2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2263	or die "unable to load regions file\n";#d#
		2264	}
1397		2265
1398	sub cfg_load {	2266	sub cfg_load {
1399	open my $fh, "<:utf8", cf::confdir . "/config"	2267	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	2268	or return;
1401		2269
1402	local $/;	2270	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	2271	*CFG = YAML::Syck::Load <$fh>;
		2272
		2273	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2274
		2275	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2276	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2277
		2278	if (exists $CFG{mlockall}) {
		2279	eval {
		2280	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2281	and die "WARNING: m(un)lockall failed: $!\n";
		2282	};
		2283	warn $@ if $@;
		2284	}
		2285	}
		2286
		2287	sub init {
		2288	load_resources;
1404	}	2289	}
1405		2290
1406	sub main {	2291	sub main {
1407	# we must not ever block the main coroutine	2292	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2293	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2294	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {	2295	(async {
1411	Event::one_event;	2296	Event::one_event;
1412	})->();	2297	})->prio (Coro::PRIO_MAX);
1413	};	2298	};
1414		2299
1415	cfg_load;	2300	cfg_load;
1416	db_load;	2301	db_init;
1417	load_extensions;	2302	load_extensions;
		2303
		2304	$TICK_WATCHER->start;
1418	Event::loop;	2305	Event::loop;
1419	}	2306	}
1420		2307
1421	#############################################################################	2308	#############################################################################
1422	# initialisation	2309	# initialisation and cleanup
1423		2310
		2311	# install some emergency cleanup handlers
		2312	BEGIN {
		2313	for my $signal (qw(INT HUP TERM)) {
		2314	Event->signal (
		2315	reentrant => 0,
		2316	data => WF_AUTOCANCEL,
		2317	signal => $signal,
		2318	prio => 0,
		2319	cb => sub {
		2320	cf::cleanup "SIG$signal";
		2321	},
		2322	);
		2323	}
		2324	}
		2325
		2326	sub emergency_save() {
		2327	my $freeze_guard = cf::freeze_mainloop;
		2328
		2329	warn "enter emergency perl save\n";
		2330
		2331	cf::sync_job {
		2332	# use a peculiar iteration method to avoid tripping on perl
		2333	# refcount bugs in for. also avoids problems with players
		2334	# and maps saved/destroyed asynchronously.
		2335	warn "begin emergency player save\n";
		2336	for my $login (keys %cf::PLAYER) {
		2337	my $pl = $cf::PLAYER{$login} or next;
		2338	$pl->valid or next;
		2339	$pl->save;
		2340	}
		2341	warn "end emergency player save\n";
		2342
		2343	warn "begin emergency map save\n";
		2344	for my $path (keys %cf::MAP) {
		2345	my $map = $cf::MAP{$path} or next;
		2346	$map->valid or next;
		2347	$map->save;
		2348	}
		2349	warn "end emergency map save\n";
		2350
		2351	warn "begin emergency database checkpoint\n";
		2352	BDB::db_env_txn_checkpoint $DB_ENV;
		2353	warn "end emergency database checkpoint\n";
		2354	};
		2355
		2356	warn "leave emergency perl save\n";
		2357	}
		2358
		2359	sub post_cleanup {
		2360	my ($make_core) = @_;
		2361
		2362	warn Carp::longmess "post_cleanup backtrace"
		2363	if $make_core;
		2364	}
		2365
1424	sub perl_reload() {	2366	sub reload() {
1425	# can/must only be called in main	2367	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2368	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2369	warn "can only reload from main coroutine";
1428	return;	2370	return;
1429	}	2371	}
1430		2372
1431	warn "reloading...";	2373	warn "reloading...";
1432		2374
1433	local $FREEZE = 1;	2375	warn "entering sync_job";
		2376
		2377	cf::sync_job {
		2378	cf::write_runtime; # external watchdog should not bark
1434	cf::emergency_save;	2379	cf::emergency_save;
		2380	cf::write_runtime; # external watchdog should not bark
1435		2381
1436	eval {	2382	warn "syncing database to disk";
		2383	BDB::db_env_txn_checkpoint $DB_ENV;
		2384
1437	# if anything goes wrong in here, we should simply crash as we already saved	2385	# if anything goes wrong in here, we should simply crash as we already saved
1438		2386
1439	# cancel all watchers	2387	warn "cancelling all WF_AUTOCANCEL watchers";
1440	for (Event::all_watchers) {	2388	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	2389	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	2390	}
1443		2391
		2392	warn "flushing outstanding aio requests";
		2393	for (;;) {
		2394	BDB::flush;
		2395	IO::AIO::flush;
		2396	Coro::cede;
		2397	last unless IO::AIO::nreqs || BDB::nreqs;
		2398	warn "iterate...";
		2399	}
		2400
1444	# cancel all extension coros	2401	warn "cancelling all extension coros";
1445	$_->cancel for values %EXT_CORO;	2402	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	2403	%EXT_CORO = ();
1447		2404
1448	# unload all extensions	2405	warn "removing commands";
1449	for (@exts) {	2406	%COMMAND = ();
		2407
		2408	warn "removing ext commands";
		2409	%EXTCMD = ();
		2410
		2411	warn "unloading/nuking all extensions";
		2412	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	2413	warn "... unloading $pkg";
1451	unload_extension $_;	2414
		2415	if (my $cb = $pkg->can ("unload")) {
		2416	eval {
		2417	$cb->($pkg);
		2418	1
		2419	} or warn "$pkg unloaded, but with errors: $@";
1452	}	2420	}
1453		2421
		2422	warn "... nuking $pkg";
		2423	Symbol::delete_package $pkg;
		2424	}
		2425
1454	# unload all modules loaded from $LIBDIR	2426	warn "unloading all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	2427	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2428	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		2429
1458	warn "removing <$k>";	2430	warn "... unloading $k";
1459	delete $INC{$k};	2431	delete $INC{$k};
1460		2432
1461	$k =~ s/\.pm$//;	2433	$k =~ s/\.pm$//;
1462	$k =~ s/\//::/g;	2434	$k =~ s/\//::/g;
1463		2435
…		…
1466	}	2438	}
1467		2439
1468	Symbol::delete_package $k;	2440	Symbol::delete_package $k;
1469	}	2441	}
1470		2442
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	2443	warn "getting rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	2444	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2445	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		2446
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	2447	warn "unloading cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	2448	delete $INC{"cf.pm"};
1484		2449
1485	# don't, removes xs symbols, too,	2450	# don't, removes xs symbols, too,
1486	# and global variables created in xs	2451	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	2452	#Symbol::delete_package __PACKAGE__;
1488		2453
1489	# reload cf.pm	2454	warn "unload completed, starting to reload now";
		2455
1490	warn "reloading cf.pm";	2456	warn "reloading cf.pm";
1491	require cf;	2457	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2458	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		2459
1494	# load config and database again	2460	warn "loading config and database again";
1495	cf::cfg_load;	2461	cf::cfg_load;
1496	cf::db_load;
1497		2462
1498	# load extensions
1499	warn "load extensions";	2463	warn "loading extensions";
1500	cf::load_extensions;	2464	cf::load_extensions;
1501		2465
1502	# reattach attachments to objects	2466	warn "reattaching attachments to objects/players";
1503	warn "reattach";
1504	_global_reattach;	2467	_global_reattach;
1505	};	2468	warn "reattaching attachments to maps";
		2469	reattach $_ for values %MAP;
1506		2470
1507	if ($@) {	2471	warn "loading reloadable resources";
		2472	load_resources;
		2473
		2474	warn "leaving sync_job";
		2475
		2476	1
		2477	} or do {
1508	warn $@;	2478	warn $@;
1509	warn "error while reloading, exiting.";	2479	warn "error while reloading, exiting.";
1510	exit 1;	2480	exit 1;
1511	}	2481	};
1512		2482
1513	warn "reloaded successfully";	2483	warn "reloaded";
1514	};	2484	};
1515		2485
1516	#############################################################################	2486	our $RELOAD_WATCHER; # used only during reload
1517		2487
1518	unless ($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	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}
1528
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	2488	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2489	my ($who, $arg) = @_;
1533		2490
1534	if ($who->flag (FLAG_WIZ)) {	2491	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");
1536	perl_reload;
1537	$who->message ("end of reload.");	2492	$who->message ("reloading server.");
		2493
		2494	# doing reload synchronously and two reloads happen back-to-back,
		2495	# coro crashes during coro_state_free->destroy here.
		2496
		2497	$RELOAD_WATCHER ||= Event->timer (
		2498	reentrant => 0,
		2499	after => 0,
		2500	data => WF_AUTOCANCEL,
		2501	cb => sub {
		2502	reload;
		2503	undef $RELOAD_WATCHER;
		2504	},
		2505	);
1538	}	2506	}
1539	};	2507	};
1540		2508
1541	unshift @INC, $LIBDIR;	2509	unshift @INC, $LIBDIR;
		2510
		2511	my $bug_warning = 0;
1542		2512
1543	$TICK_WATCHER = Event->timer (	2513	$TICK_WATCHER = Event->timer (
1544	reentrant => 0,	2514	reentrant => 0,
		2515	parked => 1,
1545	prio => 0,	2516	prio => 0,
1546	at => $NEXT_TICK || $TICK,	2517	at => $NEXT_TICK || $TICK,
1547	data => WF_AUTOCANCEL,	2518	data => WF_AUTOCANCEL,
1548	cb => sub {	2519	cb => sub {
1549	unless ($FREEZE) {	2520	if ($Coro::current != $Coro::main) {
		2521	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2522	unless ++$bug_warning > 10;
		2523	return;
		2524	}
		2525
		2526	$NOW = Event::time;
		2527
1550	cf::server_tick; # one server iteration	2528	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2529	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2530	$NEXT_TICK += $TICK;
		2531
		2532	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2533	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2534	Coro::async_pool {
		2535	write_runtime
		2536	or warn "ERROR: unable to write runtime file: $!";
		2537	};
		2538	}
		2539
		2540
		2541	$WAIT_FOR_TICK->broadcast;
		2542	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2543
		2544	# my $AFTER = Event::time;
		2545	# warn $AFTER - $NOW;#d#
1555		2546
1556	# if we are delayed by four ticks or more, skip them all	2547	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2549
1559	$TICK_WATCHER->at ($NEXT_TICK);	2550	$TICK_WATCHER->at ($NEXT_TICK);
1560	$TICK_WATCHER->start;	2551	$TICK_WATCHER->start;
1561	},	2552	},
1562	);	2553	);
1563		2554
		2555	{
1564	IO::AIO::max_poll_time $TICK * 0.2;	2556	BDB::max_poll_time $TICK * 0.1;
1565		2557	$BDB_POLL_WATCHER = Event->io (
1566	Event->io (	2558	reentrant => 0,
1567	fd => IO::AIO::poll_fileno,	2559	fd => BDB::poll_fileno,
1568	poll => 'r',	2560	poll => 'r',
1569	prio => 5,	2561	prio => 0,
1570	data => WF_AUTOCANCEL,
1571	cb => \&IO::AIO::poll_cb,
1572	);
1573
1574	Event->timer (
1575	data => WF_AUTOCANCEL,	2562	data => WF_AUTOCANCEL,
1576	after => 0,	2563	cb => \&BDB::poll_cb,
1577	interval => 10,	2564	);
1578	cb => sub {	2565	BDB::min_parallel 8;
1579	(Coro::unblock_sub {	2566
1580	write_runtime	2567	BDB::set_sync_prepare {
1581	or warn "ERROR: unable to write runtime file: $!";	2568	my $status;
		2569	my $current = $Coro::current;
		2570	(
		2571	sub {
		2572	$status = $!;
		2573	$current->ready; undef $current;
		2574	},
		2575	sub {
		2576	Coro::schedule while defined $current;
		2577	$! = $status;
		2578	},
		2579	)
		2580	};
		2581
		2582	unless ($DB_ENV) {
		2583	$DB_ENV = BDB::db_env_create;
		2584
		2585	cf::sync_job {
		2586	eval {
		2587	BDB::db_env_open
		2588	$DB_ENV,
		2589	$BDB_ENV_DIR,
		2590	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2591	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2592	0666;
		2593
		2594	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2595
		2596	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2597	$DB_ENV->set_lk_detect;
		2598	};
		2599
		2600	cf::cleanup "db_env_open(db): $@" if $@;
1582	})->();	2601	};
1583	},	2602	}
1584	);	2603	}
		2604
		2605	{
		2606	IO::AIO::min_parallel 8;
		2607
		2608	undef $Coro::AIO::WATCHER;
		2609	IO::AIO::max_poll_time $TICK * 0.1;
		2610	$AIO_POLL_WATCHER = Event->io (
		2611	reentrant => 0,
		2612	data => WF_AUTOCANCEL,
		2613	fd => IO::AIO::poll_fileno,
		2614	poll => 'r',
		2615	prio => 6,
		2616	cb => \&IO::AIO::poll_cb,
		2617	);
		2618	}
		2619
		2620	END { cf::emergency_save }
1585		2621
1586	1	2622	1
1587		2623

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